CN119767651B - Power supply equipment cabinet heat radiation structure and cabinet for nuclear power station - Google Patents
Power supply equipment cabinet heat radiation structure and cabinet for nuclear power stationInfo
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- CN119767651B CN119767651B CN202510264971.5A CN202510264971A CN119767651B CN 119767651 B CN119767651 B CN 119767651B CN 202510264971 A CN202510264971 A CN 202510264971A CN 119767651 B CN119767651 B CN 119767651B
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Abstract
本发明提供了一种核电站用电源设备机柜散热结构及机柜，属于仪器零部件技术领域，包括柜体以及分别设置在柜体内的隔挡结构和散热风道；散热风道内设有散热器；隔挡结构和散热风道将柜体内腔分隔为第一腔室和第二腔室；第一腔室包括容置腔和通风腔；容置腔用于放置第一模组；第二腔室用于放置第二模组，第二模组与散热器贴合设置。本发明提供的核电站用电源设备机柜散热结构，由于第一腔室和第二腔室能够各自通入冷风，可保证对第一模组和第二模组均匀散热，避免出现局部热点问题，提升柜体的散热效果。
This invention provides a heat dissipation structure and cabinet for a power supply equipment cabinet used in nuclear power plants, belonging to the technical field of instrument components. It includes a cabinet body and partition structures and heat dissipation ducts respectively disposed within the cabinet body. A heat sink is installed within the heat dissipation ducts. The partition structures and heat dissipation ducts divide the internal cavity of the cabinet into a first chamber and a second chamber. The first chamber includes a receiving cavity and a ventilation cavity. The receiving cavity is used to house a first module. The second chamber is used to house a second module, which is fitted to the heat sink. The heat dissipation structure for a power supply equipment cabinet used in nuclear power plants provided by this invention ensures uniform heat dissipation for both the first and second modules by allowing cool air to enter each of the first and second chambers, avoiding localized hot spots and improving the overall heat dissipation effect of the cabinet.
Description
Technical Field
The invention belongs to the technical field of instrument parts, and particularly relates to a heat dissipation structure of a power supply equipment cabinet for a nuclear power station.
Background
Nuclear power plants are typically equipped with power equipment cabinets. Considering the requirement of combining a plurality of cabinets and the requirement that the cabinets are placed against walls, the cabinets generally adopt a ventilation mode of lower air inlet and upper air outlet so as to radiate heat of electric components in the cabinets. Because the inside distribution of rack has different electrical components, and the electrical components that is located rack upper portion receives is the hot-blast through below electrical components, leads to the whole radiating effect of rack poor, still can have local hot spot problem.
Disclosure of Invention
The invention aims to provide a power supply equipment cabinet heat dissipation structure for a nuclear power station and a cabinet, and aims to solve the technical problem that the cabinet adopting a lower air inlet and upper air outlet ventilation mode in the prior art is poor in heat dissipation effect.
In order to achieve the above purpose, in a first aspect, the invention provides a heat dissipation structure of a power supply equipment cabinet for a nuclear power station, comprising a cabinet body, a baffle structure and a heat dissipation air duct, wherein the baffle structure and the heat dissipation air duct are respectively arranged in the cabinet body and are sequentially connected from bottom to top;
The heat dissipation air duct is arranged in the cabinet body, and is used for dissipating heat generated by the heat dissipation air duct, and the heat dissipation air duct is arranged in the cabinet body and is used for dissipating heat generated by the heat dissipation air duct;
The cabinet comprises a cabinet body, and is characterized in that a bottom plate of the cabinet body and/or a side plate of the cabinet body is provided with a first air inlet, a side plate of the cabinet body is provided with a second air inlet, a top plate of the cabinet body is provided with an air outlet, a heat dissipation air duct is provided with a second air vent below the heat radiator, wherein the first air inlet, the first chamber and the air outlet are sequentially communicated, and the second air inlet, the second air vent, the heat dissipation air duct and the air outlet are sequentially communicated.
As a limitation of the present invention, the baffle structure is formed with an air inlet channel, the front end of the air inlet channel is communicated with the second air inlet, and the rear end of the air inlet channel faces the second air inlet.
Further, the barrier structure includes:
the front end of the baffle is positioned right behind the second air inlet, and the rear end of the baffle is positioned below the second air inlet;
The guide plate comprises a transverse extending part and a vertical extending part which are sequentially connected; the front end of the transverse extension part is positioned right behind the second air inlet and right below the baffle, the vertical extension part is positioned behind the baffle, and the upper end of the vertical extension part is connected to the second air inlet, wherein an air inlet channel is formed between the baffle and the transverse extension part.
Further, the second chamber is further used for placing a third module, the third module is electrically connected with the second module, and the third module is placed on the baffle.
The radiator is positioned in the first air channel, the inner cavity structure of the first air channel is matched with the structure of the radiator, and the second air vent is formed at the lower end of the first air channel.
Further, the second air duct comprises an inlet part and a flaring part which are sequentially connected from bottom to top, the inner cavity structure of the inlet part is the same as that of the first air duct, and the flaring part is flared from bottom to top.
The top end of the heat dissipation air duct transversely seals the inner cavity of the cabinet body, and the heat dissipation air duct is further provided with a first ventilation opening communicated with the first cavity and a third ventilation opening communicated with the second cavity.
Further, the first ventilation opening corresponds to the third ventilation opening along the front-back direction of the cabinet body, and copper bars are arranged in the heat dissipation air duct in a penetrating mode between the first ventilation opening and the third ventilation opening.
Compared with the prior art, the heat dissipation structure of the power supply equipment cabinet for the nuclear power station has the advantages that the inner cavity of the cabinet is divided into the first cavity and the second cavity which are not communicated with each other by the baffle structure and the heat dissipation air duct, part of cold air passes through the first cavity from bottom to top to dissipate heat of a first module located at the lower half of the cabinet body, the second module located at the upper half of the cabinet is attached to the radiator, part of cold air passes through the heat dissipation air duct from bottom to top to blow the radiator to take away heat of the second module to dissipate heat of the second module, and as the first cavity and the second cavity can be respectively filled with cold air, the first module and the second module can be guaranteed to dissipate heat evenly, the problem of local hot spots is avoided, and the heat dissipation effect of the cabinet body is improved.
In a second aspect, the present invention also provides a cabinet, comprising:
The power supply equipment cabinet heat dissipation structure for the nuclear power station;
The first module is placed in the accommodating cavity;
A second module disposed in the second chamber;
the fan assembly is positioned in the inner cavity of the cabinet body and is connected to the top end of the heat dissipation air duct.
As a limitation of the invention, the second modules are distributed with a plurality of groups at intervals along the left-right direction of the cabinet body, the fan assembly comprises a plurality of air draft fans which are distributed at intervals along the left-right direction of the cabinet body, and the air draft fans are in one-to-one correspondence with the second modules.
According to the cabinet provided by the invention, due to the adoption of the heat dissipation structure of the power supply equipment cabinet for the nuclear power station, cold air can be respectively introduced into the first cavity and the second cavity, so that the first module and the second module can be uniformly cooled, the problem of local hot spots is avoided, and the heat dissipation effect of the cabinet body is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a heat dissipation structure of a power supply equipment cabinet for a nuclear power station (a left side plate of a cabinet body is not shown in the drawing) according to an embodiment of the present invention;
Fig. 2 is a schematic diagram of a left-side view of a heat dissipation structure of a power supply equipment cabinet for a nuclear power station according to an embodiment of the present invention (a left side plate is not shown in the figure);
fig. 3 is a schematic structural diagram of a cabinet according to an embodiment of the present invention (the left side plate of the cabinet is not shown in the drawing);
Fig. 4 is a schematic diagram of a left-view structure of a cabinet according to an embodiment of the present invention (a left side plate of a cabinet body is not shown in the drawing);
fig. 5 is a schematic diagram of a front view structure of a cabinet according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a front view of a cabinet according to an embodiment of the present invention (the upper half of the front side plate of the cabinet is not shown in the drawing).
In the figure:
1. The cabinet comprises a cabinet body, a first chamber, a 111 accommodating chamber, a 112 ventilating chamber, a 12 second chamber, a 13 first air inlet, a 14 second air inlet, a 15 air outlet, a2 baffle structure, a21 baffle, a 22 baffle, a guide plate, a 221 transverse extension part, a 222 vertical extension part, a 3 radiating air duct, a 31 first air duct, a 32 second air duct, a 321, an inlet part, a 322, an expansion part, a 4 radiator, a 51, a first module, a 52, a second module, a 53, a third module, a 6 exhaust fan.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 and fig. 2 together, a description will be given of a heat dissipation structure of a power supply equipment cabinet for a nuclear power station according to the present invention. The power supply equipment cabinet heat dissipation structure for the nuclear power station comprises a cabinet body 1, a baffle structure 2 and a heat dissipation air duct 3, wherein the baffle structure 2 and the heat dissipation air duct 3 are respectively arranged in the cabinet body 1 and are sequentially connected from bottom to top;
The inner cavity of the cabinet body 1 is divided into a first cavity 11 and a second cavity 12 by the baffle structure 2 and the heat dissipation air duct 3, the first cavity 11 comprises a containing cavity 111 and a ventilation cavity 112 which are communicated up and down, the containing cavity 111 is used for placing the first module 51, the second cavity 12 is positioned above the containing cavity 111 and in front of the ventilation cavity 112, the second cavity 12 is used for placing the second module 52, and the second module 52 is attached to the radiator 4;
The bottom plate of the cabinet body 1 and/or the side plate of the cabinet body 1 are/is provided with a first air inlet 13, the side plate of the cabinet body 1 is provided with a second air inlet 14, the top plate of the cabinet body 1 is provided with an air outlet 15, the heat dissipation air duct 3 is provided with a second air inlet below the heat sink 4, wherein the first air inlet 13, the first cavity 11 and the air outlet 15 are sequentially communicated, and the second air inlet 14, the second air inlet, the heat dissipation air duct 3 and the air outlet 15 are sequentially communicated.
The cabinet body 1 is of a cuboid structure and consists of a front side plate, a rear side plate, a left side plate, a right side plate, a top plate, a bottom plate and a supporting frame for connecting and supporting the plates. In addition, the bottom of the cabinet body 1 can be provided with a supporting base, and the top can be provided with a rain-proof plate. In addition, the inner cavity of the cabinet body 1 is further provided with a fan assembly above the heat dissipation air duct 3, and the fan assembly is used for exhausting air, so that air flow flows upwards rapidly.
The baffle structure 2 is arranged in the middle and on the upper part of the inner cavity of the cabinet body 1, the heat dissipation air duct 3 is arranged at the top of the inner cavity of the cabinet body 1, and the fan assembly is connected above the heat dissipation air duct 3. The baffle structure 2 and the heat dissipation air duct 3 are mainly used for separating the inner cavity of the cabinet body 1 to form a first cavity 11 and a second cavity 12 which are not communicated with each other and are independent from each other.
The containing cavity 111 of the first chamber 11 occupies the lower half part of the inner cavity of the cabinet body 1, the ventilation cavity 112 occupies the upper rear half part of the inner cavity of the cabinet body 1, and cold air enters the first chamber 11 from the first air inlet 13, passes through the first chamber 11 from bottom to top and flows through the first module 51 to take away the heat of the first module 51, dissipate the heat of the first module, and finally flows out of the cabinet body 1 from the air outlet 15.
The first air inlet 13 is arranged on the bottom plate of the cabinet 1 and/or on the side plate of the cabinet 1. Considering the requirement of combining the cabinet bodies 1 and placing the cabinet against a wall, the first air inlet 13 is preferably formed at the bottom of the front side plate of the cabinet body 1, as shown in fig. 1. Specifically, the first air inlet 13 is a mesh, and a filter cotton may be disposed behind it.
The second chamber 12 is located above the accommodating cavity 111, in order to facilitate daily maintenance of the second module 52 in the second chamber 12, the second module 52 is directed to the front side plate of the cabinet 1, so that the second chamber 12 is located in front of the ventilation cavity 112, that is, the second chamber 12 occupies the front upper half of the cavity of the cabinet 1, and it should be noted that, since the ventilation cavity 112 is mainly used for ventilation of cold air, no electrical components to be maintained can be disposed therein, and therefore, in the front-rear direction of the cabinet 1, the width of the ventilation cavity 112 is smaller than the width of the second chamber 12.
The second air inlet 14 is preferably formed at a middle portion of the front side plate of the cabinet 1, as shown in fig. 1. The second air inlet 14 is also a mesh, and a filter cotton can be arranged behind the second air inlet.
The second module 52 is attached to the heat sink 4, and the second module 52 may be a high heat generating device through heat dissipation of the heat sink 4. Specifically, the heat sink 4 may have a structure commonly known in the art, including a heat dissipating substrate and a plurality of heat dissipating fins connected to the heat dissipating substrate. The second module 52 is attached to the heat dissipating substrate. The cold air passes through the heat dissipation air duct 3 from bottom to top and blows the radiator 4 to take away the heat of the second module 52 and dissipate the heat.
Because the second module 52 radiates heat through the radiator 4, and the radiator 4 is located in the radiating air duct 3, the second chamber 12 can be used as a closed chamber, and cold air passing through the second air inlet 14 directly enters the radiating air duct 3 (but does not enter the second chamber 12, and does not blow the second module 52), so that the cabinet can be applied in severe environments such as high temperature, high humidity, high dust and the like. If other modules are further disposed in the second chamber 12, a flow guiding fan may be disposed in the second chamber 12 to circulate the air flow so as to take away heat of the other modules.
Of course, the second chamber 12 may be a non-closed chamber, and part of the cold air passing through the second air inlet 14 enters the heat dissipation air duct 3, and part of the cold air enters the second chamber 12. The specific form of the second chamber 12 depends on the cabinet design requirements and the installation environment.
Compared with the prior art, the heat dissipation structure of the power supply equipment cabinet for the nuclear power station provided by the invention has the advantages that the inner cavity of the cabinet is divided into the first cavity 11 and the second cavity 12 which are not communicated with each other by the baffle structure 2 and the heat dissipation air duct 3, part of cold air passes through the first cavity 11 from bottom to top so as to dissipate heat of the first module 51 positioned at the lower half part of the cabinet body 1, the second module 52 positioned at the upper half part of the cabinet is in fit connection with the radiator 4, part of cold air passes through the heat dissipation air duct 3 from bottom to top so as to blow the radiator 4 to take away heat of the second module 52 and dissipate heat of the second module, and as the first cavity 11 and the second cavity 12 can be respectively led with cold air, the first module 51 and the second module 52 can be guaranteed to be evenly dissipated, the problem of local hot spots is avoided, and the heat dissipation effect of the cabinet body 1 is improved.
In some embodiments, the blocking structure 2 may be configured as shown in fig. 1 and 2, and referring to fig. 1 and 2, the blocking structure 2 is formed with an air inlet channel, a front end of the air inlet channel is communicated with the second air inlet 14, and a rear end of the air inlet channel faces the second air inlet.
The second air inlet 14 extends along the left-right direction of the cabinet body 1, and the total length of the second air inlet 14 is slightly smaller than the width of the front side plate of the cabinet body 1, that is, the total opening area of the second air inlet 14 is large, so that sufficient cold air can be ensured to be supplied. Since the total opening area of the second air inlet 14 is large, in order to ensure that the heat dissipation channel can receive a large amount of cold air, the air inlet channel is formed on the baffle structure 2 in this embodiment. The air inlet channel plays a role in guiding air, and is used for guiding external cold air to flow to the heat dissipation air channel 3 so as to take away heat of the radiator 4 and ensure sufficient heat dissipation of the second module 52.
The air inlet channel can be a closed channel, the front end of the air inlet channel is in butt joint with the second air inlet 14, the rear end of the air inlet channel is in butt joint with the second air inlet 14, so that external cold air sequentially flows through the air inlet channel and the heat dissipation air channel 3 through the second air inlet 14 to take away heat of the radiator 4, so as to dissipate heat of the second module 52, and then flows out of the air outlet 15. Since the external cool air does not pass through the second chamber 12, the second chamber 12 may be a closed chamber accordingly.
The air inlet channel may also be a non-closed channel, for example, the front end of the air inlet channel is abutted against the second air inlet 14, the rear end of the air inlet channel is abutted against the second air inlet 14, the external cold air enters the heat dissipation channel through the air inlet channel to take away the heat of the heat sink 4 so as to dissipate the heat of the second module 52, and then flows out of the air outlet 15, and part of the cold air enters the second chamber 12 through the second air inlet 14 and/or the air outlet end of the air inlet channel so as to dissipate the heat of the module in the second chamber 12.
In some embodiments, the baffle structure 2 may be configured as shown in fig. 1 and 2, and referring to fig. 1 and 2, the baffle structure 2 includes a baffle 21 and a baffle 22. The front end of the baffle plate 21 is located right behind the second air inlet 14, the rear end of the baffle plate is located below the second air inlet, the guide plate 22 comprises a transverse extending part 221 and a vertical extending part 222 which are sequentially connected, the front end of the transverse extending part 221 is located right behind the second air inlet 14 and right below the baffle plate 21, the vertical extending part 222 is located behind the baffle plate 21, and the upper end of the vertical extending part 222 is connected to the second air inlet, wherein an air inlet channel is formed between the baffle plate 21 and the transverse extending part 221.
The left and right side edges of the deflector 22 are respectively connected with the side plates or the frame of the cabinet body 1. The deflector 22 is a bending plate, and specifically comprises a transverse extending portion 221 and a vertical extending portion 222, the transverse extending portion 221 extends along the front-rear direction of the cabinet body 1, the front end edge of the transverse extending portion is connected with the front side plate of the cabinet body 1, the vertical extending portion 222 extends along the up-down direction of the cabinet body 1 or is slightly inclined relative to the up-down direction of the cabinet body 1, the lower end of the vertical extending portion 222 is connected with the front end of the transverse extending portion 221, and the upper end of the vertical extending portion 222 is connected with the lower end of the heat dissipation air duct 3.
The deflector 22 is combined with the heat dissipation air duct 3 to divide the inner cavity of the cabinet body 1 into a first cavity 11 and a second cavity 12. In addition, the baffle 22 also serves as a wind shield and a flow guide.
The baffle 21 is located directly above the lateral extension 221, and cooperates with the lateral extension 221 to form an air intake channel. The rear end of the baffle 21 is slightly forward relative to the rear end of the lateral extension 221, so that a ventilation gap exists between the rear end of the baffle 21 and the vertical extension 222, which not only ensures that part of cold air can smoothly pass through the air inlet channel and enter the heat dissipation air channel 3, but also enables part of cold air to enter the second chamber 12 to further dissipate heat of the second module 52.
Preferably, the vertical extension 222 is disposed at a slight inclination with respect to the up-down direction of the cabinet 1, and in particular, the vertical extension 222 is inclined backward from bottom to top. Because the air inlet channel extends along the front-back direction of the cabinet body 1, the vertical extension 222 adopts the mode, on one hand, the backflow caused by the fact that a large amount of cold air directly impacts the cabinet body and cannot be redirected can be avoided, the guide plate 22 further plays a role in guiding flow, on the other hand, the strength of the guide plate 22 can be increased, and the service life of the guide plate is prolonged.
In some embodiments, the second chamber 12 is further used for placing a third module 53, the third module 53 is electrically connected to the second module 52, and the third module 53 is placed on the baffle 21.
The modules disposed within the second chamber 12 are dependent upon the function to be performed by the cabinet. Because the second module 52 is attached to the radiator 4, the heat dissipation air duct 3 is located in the middle of the cabinet body 1 and is located behind the cabinet body 1, and the baffle structure 2 is arranged below the heat dissipation air duct 3, the front and the lower sides of the second module 52 are provided with spaces, and other modules can be installed.
In this embodiment, the third module 53 is installed below the front of the second module 52, and the third module 53 is placed on the baffle 21, and the baffle 21 is opposite to the fixing support of the third module 53, so that not only is the internal space of the second chamber 12 fully utilized, but also the supporting structure of the third module 53 is omitted, and the cost is reduced.
In addition, since the front end of the support plate is located right behind the second air inlet 14, external cold air can be directly blown to the third module 53 through the second air inlet 14 to dissipate heat of the third module 53.
Because the fan assembly is arranged above the heat dissipation air duct 3, the fan assembly can exhaust air, so that the flow speed of air flow can be increased, and the heat dissipation efficiency of the second module 52 and the third module 53 is improved. In order to further increase the air outlet speed of the air flow, to avoid interference of multiple groups of air flows collected at the top of the cabinet body 1, preferably, the top end of the heat dissipation air duct 3 transversely seals the inner cavity of the cabinet body 1, as shown in fig. 1, that is, all air flows entering the cabinet body 1 enter the heat dissipation air duct 3 and then flow out from the air outlet 15.
In order to ensure that the air flow in the second chamber 12 can flow out of the cabinet body 1 upwards, a third air vent is further arranged on the heat dissipation air duct 3 and is communicated with the second chamber 12. The cold air entering the second chamber 12 through the second air inlet 14 flows upwards, takes away heat through the third module 53 and the second module 52 in sequence, then enters the heat dissipation air duct 3 through the third air inlet, and finally flows out of the cabinet body 1 through the air outlet 15.
In addition, in order to ensure that the air flow in the first chamber 11 can flow out of the cabinet body 1 upwards, the heat dissipation air duct 3 is further provided with a first ventilation opening, and the first ventilation opening is communicated with the first chamber 11. The cold air entering the first chamber 11 through the first air inlet 13 flows upwards, takes away heat through the first module 51, enters the heat dissipation air duct 3 through the first air vent, and finally flows out of the cabinet body 1 through the air outlet 15.
Preferably, the third ventilation openings and the first ventilation openings are all distributed at intervals along the left-right direction of the cabinet body 1, and the third ventilation openings and the first ventilation openings are in one-to-one correspondence in the front-back direction of the cabinet body 1. The third vent and the first vent can be penetrated with copper bars besides the air passing. That is, the copper bar electrically connected to the first module 51 or the second module 52 may pass through the heat dissipation air duct 3 through the third air port and then be connected to other electrical components in the first chamber 11.
In order to ensure insulation between the copper bar and the heat dissipation air duct 3, insulation plates are respectively arranged on the peripheral edges of the plurality of third air vents and the peripheral edges of the plurality of first air vents.
In some embodiments, the heat dissipation air duct 3 may have a structure as shown in fig. 1 and 2, referring to fig. 1 and 2, the heat dissipation air duct 3 includes a first air duct 31 and a second air duct 32 sequentially connected from bottom to top, the radiator 4 is located in the first air duct 31, an inner cavity structure of the first air duct 31 is adapted to a structure of the radiator 4, and a second air vent is formed at a lower end of the first air duct 31.
The heat sink 4 may have a structure commonly known in the art, including a heat dissipating substrate and a plurality of heat dissipating fins connected to the heat dissipating substrate. The plate surface of the heat dissipation substrate is perpendicular to the front-back direction of the cabinet body 1, and the second module 52 is attached to the heat dissipation substrate. The face of the radiating fin is perpendicular to the left-right direction of the cabinet body 1, and a plurality of radiating fins are distributed at intervals along the left-right direction of the cabinet body 1.
The inner cavity structure of the first air duct 31 is matched with the structure of the radiator 4, that is, the cold air passing through the first air duct 31 can completely take away heat through the radiator 4, so that the loss of cold energy is avoided.
Since the first module 51 is attached to the heat dissipating substrate, the front wall of the first air duct 31 is the heat dissipating substrate. Moreover, the inner cavity structure of the first air duct 31 is adapted to the structure of the radiator 4, and other side walls of the first air duct 31 can be regarded as a supporting frame for fixing the radiator 4. The support frame is composed of a left support plate, a right support plate and a rear support plate, and encloses a rectangular frame body, and the radiator 4 is fixed in the support frame. Therefore, the fixed frame and the heat dissipation substrate form the first air duct 31.
In some embodiments, the second air duct 32 may have a structure as shown in fig. 1 and 2, referring to fig. 1 and 2, where the second air duct 32 includes an inlet 321 and a flared portion 322 sequentially connected from bottom to top, the inner cavity structure of the inlet 321 is the same as the inner cavity structure of the first air duct 31, and the flared portion 322 expands from bottom to top.
The inlet 321 is used for connecting with the first air duct 31 and plays a role in intermediate transition. The expanding part 322 is of a horn-shaped structure, the top end of the expanding part transversely seals the inner cavity of the cabinet body 1, and a fan assembly is arranged above the expanding part. The front side wall of the expansion part 322 is provided with a plurality of third ventilation openings, and the rear side wall is provided with a plurality of first ventilation openings.
The expansion part 322 plays a role in converging air flow, avoids the interference of a plurality of groups of air flow converging at the top of the cabinet body 1, can quicken the air outlet speed of the air flow, and improves the heat dissipation efficiency of the first module 51, the second module 52 and the third module 53.
Referring to fig. 3 to 6, based on the same inventive concept, the embodiment of the application further provides a cabinet, which comprises the power supply equipment cabinet heat dissipation structure for a nuclear power station, a first module 51, a second module 52 and a fan assembly, wherein the first module 51 is placed in the accommodating cavity 111, the second module 52 is placed in the second cavity 12, and the fan assembly is located in an inner cavity of the cabinet body 1 and is connected to the top end of the heat dissipation air duct 3.
According to the cabinet provided by the invention, due to the adoption of the heat dissipation structure of the power supply equipment cabinet for the nuclear power station, the inner cavity of the cabinet is divided into the first cavity 11 and the second cavity 12 which are not communicated with each other by the baffle structure 2 and the heat dissipation air duct 3, part of cold air passes through the first cavity 11 from bottom to top so as to dissipate heat of the first module 51 positioned at the lower half part of the cabinet body 1, the second module 52 positioned at the upper half part of the cabinet is attached to the radiator 4, part of cold air passes through the heat dissipation air duct 3 from bottom to top so as to blow the radiator 4, so that heat of the second module 52 is taken away, and as the first cavity 11 and the second cavity 12 can be respectively led with cold air, the uniform heat dissipation of the first module 51 and the second module 52 can be ensured, the problem of local hot spots is avoided, and the heat dissipation effect of the cabinet body 1 is improved.
In some embodiments, the second module 52 and the fan assembly may have a structure as shown in fig. 6, referring to fig. 6, where a plurality of groups of second modules 52 are distributed at intervals along the left-right direction of the cabinet 1, and the fan assembly includes a plurality of air draft fans 6 distributed at intervals along the left-right direction of the cabinet 1, where the plurality of air draft fans 6 are vertically corresponding to the plurality of second modules 52 one by one.
The number of second modules 52 depends on the function to be implemented by the cabinet and the power to be achieved, and the number of exhaust fans 6 corresponds to the number of second modules 52. Therefore, the plurality of second modules 52 can be uniformly cooled, so that the plurality of second modules 52 can be kept at the same temperature, and the problem of local hot spots is further avoided.
Moreover, the exhaust fans 6 are arranged in a plurality, and even if one of the exhaust fans fails, the fan assembly can be ensured to normally operate, and the phenomenon of overheating of the inner cavity of the cabinet can be avoided.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The heat dissipation structure of the power supply equipment cabinet for the nuclear power station is characterized by comprising a cabinet body (1), a baffle structure (2) and a heat dissipation air duct (3), wherein the baffle structure (2) and the heat dissipation air duct (3) are respectively arranged in the cabinet body (1) and are sequentially connected from bottom to top, and a radiator (4) is arranged in the heat dissipation air duct (3);
The inner cavity of the cabinet body (1) is divided into a first cavity (11) and a second cavity (12) which are not communicated with each other by the baffle structure (2) and the heat dissipation air duct (3), the first cavity (11) comprises a containing cavity (111) and a ventilation cavity (112) which are vertically communicated, the containing cavity (111) is used for containing a first module (51), the second cavity (12) is positioned above the containing cavity (111) and in front of the ventilation cavity (112), the second cavity (12) is used for containing a second module (52), the second module (52) is a high-heat-generation device, and the second module (52) is attached to the radiator (4);
The top end of the heat dissipation air duct (3) transversely seals the inner cavity of the cabinet body (1), and the heat dissipation air duct (3) is provided with a first ventilation opening communicated with the first chamber (11) and a third ventilation opening communicated with the second chamber (12);
the novel heat radiator comprises a cabinet body (1), a heat radiation air channel (3), a radiator (4) and a heat radiation air channel, wherein a bottom plate of the cabinet body (1) and/or a side plate of the cabinet body (1) is provided with a first air inlet (13), a side plate of the cabinet body (1) is provided with a second air inlet (14), a top plate of the cabinet body (1) is provided with an air outlet (15), and the heat radiation air channel (3) is provided with a second air inlet below the radiator (4);
The first air inlet (13), the first chamber (11), the first ventilation opening and the air outlet (15) are sequentially communicated, the second air inlet (14), the second air inlet, the heat dissipation air duct (3) and the air outlet (15) are sequentially communicated, and the second air inlet (14), the second chamber (12), the third air inlet and the air outlet (15) are sequentially communicated;
The baffle structure (2) is provided with an air inlet channel, the front end of the air inlet channel is communicated with the second air inlet (14), the rear end of the air inlet channel faces the second air inlet, and the baffle structure (2) comprises:
The front end of the baffle plate (21) is positioned right behind the second air inlet (14), and the rear end of the baffle plate is positioned below the second air inlet;
The air guide plate (22) comprises a transverse extending part (221) and a vertical extending part (222) which are sequentially connected, wherein the front end of the transverse extending part (221) is positioned right behind the second air inlet (14) and right below the baffle plate (21), the vertical extending part (222) is positioned behind the baffle plate (21) and has a ventilation gap between the baffle plate and the baffle plate, and the upper end of the vertical extending part (222) is inclined from bottom to top and is connected to the second air inlet, wherein an air inlet channel is formed between the baffle plate (21) and the transverse extending part (221).
2. The power supply equipment cabinet heat radiation structure for nuclear power plant as set forth in claim 1, wherein the second chamber (12) is further used for placing a third module (53), the third module (53) is electrically connected with the second module (52), and the third module (53) is placed on the baffle plate (21).
3. The heat radiation structure of the power supply equipment cabinet for the nuclear power station as claimed in claim 1, wherein the heat radiation air duct (3) comprises a first air duct (31) and a second air duct (32) which are sequentially connected from bottom to top, the radiator (4) is positioned in the first air duct (31), the inner cavity structure of the first air duct (31) is matched with the structure of the radiator (4), and the second air vent is formed at the lower end of the first air duct (31).
4. A power supply equipment cabinet heat radiation structure for a nuclear power plant as claimed in claim 3, wherein the second air duct (32) comprises an inlet part (321) and a flaring part (322) which are sequentially connected from bottom to top, the inner cavity structure of the inlet part (321) is the same as that of the first air duct (31), and the flaring part (322) expands from bottom to top.
5. The heat radiation structure of the power supply equipment cabinet for the nuclear power station according to claim 1, wherein the top end of the heat radiation air duct (3) transversely seals the inner cavity of the cabinet body (1), and the heat radiation air duct (3) is further provided with a first ventilation opening communicated with the first chamber (11) and a third ventilation opening communicated with the second chamber (12).
6. The heat radiation structure of the power supply equipment cabinet for the nuclear power plant according to claim 5, wherein the first ventilation opening corresponds to the third ventilation opening along the front-back direction of the cabinet body (1), and copper bars are arranged in the heat radiation air duct (3) in a penetrating way between the first ventilation opening and the third ventilation opening.
7. A cabinet, comprising:
a power supply equipment cabinet heat radiation structure for a nuclear power plant as claimed in any one of claims 1 to 6;
a first module (51) placed in the housing chamber (111);
a second module (52) placed in the second chamber (12);
The fan assembly is positioned in the inner cavity of the cabinet body (1) and is connected to the top end of the heat dissipation air duct (3).
8. The cabinet of claim 7, wherein the second modules (52) are distributed at intervals along the left-right direction of the cabinet body (1), the fan assembly comprises a plurality of air draft fans (6) distributed at intervals along the left-right direction of the cabinet body (1), and the air draft fans (6) are in one-to-one correspondence with the second modules (52).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510264971.5A CN119767651B (en) | 2025-03-07 | 2025-03-07 | Power supply equipment cabinet heat radiation structure and cabinet for nuclear power station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510264971.5A CN119767651B (en) | 2025-03-07 | 2025-03-07 | Power supply equipment cabinet heat radiation structure and cabinet for nuclear power station |
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| CN119767651B true CN119767651B (en) | 2026-04-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207151079U (en) * | 2017-09-20 | 2018-03-27 | 北京天诚同创电气有限公司 | Rack and photovoltaic DC-to-AC converter |
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| TWI437951B (en) * | 2009-09-08 | 2014-05-11 | 建準電機工業股份有限公司 | Heat sink |
| CN210274969U (en) * | 2019-06-13 | 2020-04-07 | 科华恒盛股份有限公司 | electrical cabinet |
| CN111465289A (en) * | 2020-05-11 | 2020-07-28 | 科华恒盛股份有限公司 | Module cabinet |
| CN116685107A (en) * | 2023-05-15 | 2023-09-01 | 菱王电梯有限公司 | Cabinet components and elevator control cabinets |
| CN221228145U (en) * | 2023-11-16 | 2024-06-25 | 阳光电源股份有限公司 | Inverter and heat radiation structure thereof |
| CN222030284U (en) * | 2024-01-08 | 2024-11-19 | 阳光电源股份有限公司 | Cabinet, energy storage converter, energy storage system and photovoltaic power generation system |
| CN119009725B (en) * | 2024-09-10 | 2025-12-30 | 厦门科华数能科技有限公司 | An electrical cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207151079U (en) * | 2017-09-20 | 2018-03-27 | 北京天诚同创电气有限公司 | Rack and photovoltaic DC-to-AC converter |
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