CN117214407B - A combustible gas detection device for fuel dispensers - Google Patents
A combustible gas detection device for fuel dispensersInfo
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- CN117214407B CN117214407B CN202311172293.7A CN202311172293A CN117214407B CN 117214407 B CN117214407 B CN 117214407B CN 202311172293 A CN202311172293 A CN 202311172293A CN 117214407 B CN117214407 B CN 117214407B
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Abstract
本申请涉及一种用于加油机的可燃气体探测装置，其包括包括内置供电模块、气体浓度检测模块、无线通讯模块、报警模块和控制模块；所述控制模块连接气体浓度检测模块；所述无线通讯模块连接控制模块；所述报警模块连接无线通讯模块；所述内置供电模块分别连接气体浓度检测模块、无线通讯模块、报警模块和控制模块。本申请具有提高可燃气体探测装置的便捷性的效果。
This application relates to a combustible gas detection device for a fuel dispenser, comprising a built-in power supply module, a gas concentration detection module, a wireless communication module, an alarm module, and a control module; the control module is connected to the gas concentration detection module; the wireless communication module is connected to the control module; the alarm module is connected to the wireless communication module; and the built-in power supply module is connected to the gas concentration detection module, the wireless communication module, the alarm module, and the control module. This application improves the convenience of combustible gas detection devices.
Description
Technical Field
The application relates to the technical field of combustible gas detection, in particular to a combustible gas detection device for an oiling machine.
Background
Petroleum commodities sold by a gas station have the characteristics of easy burning and explosion, easy volatilization, easy leakage and easy static charge accumulation. When the oil gun sprays gasoline to the automobile oil tank, the volatilization of the gasoline can be accelerated, and the oil gas is generated. And electronic devices such as mobile phones, car navigation, bluetooth headsets, wireless intelligent bracelets and the like release electromagnetic waves at any time. Especially when people are making a call or using a network, electromagnetic waves released from the electronic device are suddenly intensified. Such suddenly intensified electromagnetic waves ionize the air and produce sparks. Explosion is also possible when the oil gas concentration is high, thereby bringing potential safety hazard.
However, although people do not use the electronic device in the gas station, it is difficult to avoid that the application in the running state in the electronic device does not use the network. In this case, it is necessary to provide the fuel gas station with a fuel gas detecting device.
In general, the fuel gas detection devices configured at the gas stations are supplied with power from an external power supply system, which causes inconvenience in installation of the fuel gas detection devices.
Disclosure of Invention
In order to improve the convenience of the combustible gas detection device, the application provides a combustible gas detection device for a oiling machine.
The application provides a combustible gas detection device for an oiling machine, which adopts the following technical scheme:
The combustible gas detection device for the oiling machine is characterized by comprising a built-in power supply module, a gas concentration detection module, a wireless communication module, an alarm module and a control module;
the control module is connected with the gas concentration detection module;
the wireless communication module is connected with the control module;
the alarm module is connected with the wireless communication module;
the built-in power supply module is respectively connected with the gas concentration detection module, the wireless communication module, the alarm module and the control module.
Through adopting above-mentioned technical scheme, adopt built-in power module to supply power to gas concentration detection module, wireless communication module, alarm module and control module, need not to dispose outside electrical power generating system again and supply power, can be convenient for flammable gas detection device's installation and use, improved flammable gas detection device's convenience.
Optionally, the built-in power supply module comprises an electromagnetic filtering unit, a first rectifying and filtering unit, a protection unit, a switching unit, a transformer and a second rectifying and filtering unit;
The first rectifying and filtering unit is connected with the electromagnetic filtering unit;
the switching unit is connected with the first rectifying and filtering unit and is connected with the control module through the protection unit;
the primary coil of the transformer is connected with the switching unit, and the secondary coil of the transformer is connected with the second rectifying and filtering unit.
Optionally, the protection unit includes an overload protection subunit and an overvoltage protection subunit.
Optionally, the control module is further configured to:
acquiring oil gas concentration data;
When the oil gas concentration data reach a preset first early warning value, sending an alarm signal to an alarm;
and when the oil gas concentration data reach a preset second early warning value, sending a cut-off signal to the oiling machine so as to stop the oiling machine.
Optionally, the control module is further configured to:
after the oil gas concentration data is obtained, the method further comprises the following steps:
Acquiring first position information, second position information and temperature information, wherein the first position information is the positioning position of a gas detection sensor, and the second position information is the positioning position of an oiling machine;
determining an average diffusion speed according to the temperature information and the oil gas concentration data;
And predicting the oil gas concentration data at the oiling machine according to the average diffusion speed, the oil gas concentration data, the first position information and the second position information.
Optionally, the control module is further configured to:
the determining the average diffusion speed according to the temperature information and the oil gas concentration data comprises the following steps:
Calling an infrared model;
determining temperature distribution information according to the temperature information based on an infrared model;
acquiring historical concentration data, wherein the historical concentration data is the historical data of oil gas concentration data at the oiling machine;
Determining a concentration mean value according to the historical concentration data;
determining a concentration difference value according to the concentration mean value and the oil gas concentration data;
and determining the average diffusion speed according to the temperature distribution information and the concentration difference value.
Optionally, the control module is further configured to:
The determining a concentration mean value from the historical concentration data includes:
selecting oil gas concentration data in a specified time period from the historical concentration data;
and calculating the average value of the oil gas concentration data in the designated time period to obtain the concentration average value.
Optionally, the control module is further configured to:
the selecting the oil gas concentration data of a specified time period from the historical concentration data comprises the following steps:
Acquiring a current state;
If the current state is the use state, the appointed time period is the oil gun use period.
Optionally, the control module is further configured to:
the selecting the oil gas concentration data of a specified time period from the historical concentration data further comprises:
if the current state is the non-use state, the designated time period is the unused oil gun period.
Optionally, the control module is further configured to:
the method for determining the second early warning value comprises the following steps:
acquiring humidity information and air pressure information;
and determining a second early warning value according to the temperature information, the humidity information and the air pressure information based on an early warning value comparison table.
In summary, the present application includes at least one of the following beneficial technical effects:
the application adopts the built-in power supply module to supply power to the gas concentration detection module, the wireless communication module, the alarm module and the control module, does not need to be configured with an external power supply system for supplying power, can facilitate the installation and the use of the combustible gas detection device, and improves the convenience of the combustible gas detection device.
Drawings
FIG. 1 is a system schematic diagram of a fuel gas detection device for a fuel dispenser according to an embodiment of the present application.
Fig. 2 is a schematic block diagram of a built-in power module according to an embodiment of the present application.
Fig. 3 is a flow chart of a control module according to an embodiment of the application.
The reference numerals indicate that 1, a power supply module, 11, an electromagnetic filter unit, 12, a first rectifying filter unit, 131, an overload protection subunit, 132, an overvoltage protection subunit, 14, a switching unit, 15, a transformer, 16, a second rectifying filter unit, 2, a gas concentration detection module, 3, a wireless communication module, 4, an alarm module, 5 and a control module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings 1-3 and examples. 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 application.
The embodiment of the application discloses a combustible gas detection device for an oiling machine, which has higher convenience.
Referring to fig. 1 to 3, the combustible gas detection device for the fuel dispenser comprises a power supply module 1, a gas concentration detection module 2, a wireless communication module 3, an alarm module 4 and a control module 5. The shell of the combustible gas detection device is also provided with a magnet which can be adsorbed on the oiling machine so as to be convenient for installation.
The power supply module 1 comprises an electromagnetic filtering unit 11, a first rectifying and filtering unit 12, a protection unit, a switching unit 14, a transformer 15 and a second rectifying and filtering unit 16.
The electromagnetic filtering unit 11 is used for filtering electromagnetic interference. In the present application, the electromagnetic filter unit 11 is an electromagnetic interference filter.
The first rectifying and filtering unit 12 is connected to the electromagnetic filtering unit 11 and is used for rectifying and filtering the power supply. In the present application, the first rectifying and filtering unit 12 is a bridge rectifying circuit and a filter.
The switching unit 14 is connected to the first rectifying and filtering unit 12 and to the control module 5 via a protection unit, and the primary winding of the transformer 15 is connected to the switching unit 14 and the secondary winding is connected to the second rectifying and filtering unit 16. The switching unit 14 is configured to provide a stable power source, i.e. the gas concentration detection module 2 is not operated after the switching unit 14 stops operating. The transformer 15 is used for regulating the power supply voltage, and the second rectifying and filtering unit 16 is used for rectifying and filtering the regulated power supply voltage so as to make the voltage more stable. The protection unit is for protecting the power supply circuit and comprises an overload protection subunit 131 and an overvoltage protection subunit 132. The overload protection subunit 131 is configured to cut off the power supply when the load in the circuit is excessive, so as to protect the circuit. The overvoltage protection subunit 132 is configured to cut off the power supply when the voltage in the circuit is too high, so as to protect the circuit. In the present application, the second rectifying and filtering unit 16 is a bridge rectifying circuit and a filter.
The gas concentration detection module 2 is connected with the second rectifying and filtering unit 16, the control module 5 is connected with the gas concentration detection module 2, the wireless communication module 3 is respectively connected with the second rectifying and filtering unit 16 and the control module 5, and the alarm module 4 is respectively connected with the second rectifying and filtering unit 16 and the wireless communication module 3.
Further, the control module 5 can monitor the oil gas concentration of the gas station and alarm when the oil gas concentration is too high, so as to prevent fire or explosion caused by the too high oil gas concentration.
Specifically, the control module 5 is configured to:
as shown in fig. 1:
And S110, acquiring oil gas concentration data.
The oil gas concentration data is the concentration of combustible gas in air in a gas station, can be detected by a combustible gas concentration detection sensor, and can be a catalytic type combustible gas detector, a semiconductor type combustible gas detector and a natural diffusion combustion type detector.
And step S120, when the oil gas concentration data reach a preset first early warning value, an alarm signal is sent to an alarm.
And step 130, when the oil gas concentration data reach a preset second early warning value, sending a cutting-off signal to the oiling machine so as to stop the oiling machine.
The first early warning value is smaller than the second early warning value. When the oil gas concentration data does not reach the first early warning value, the alarm is not given, and when the oil gas concentration data is higher than the first early warning value but does not reach the second early warning value, the oiling machine is not controlled to stop working. In some specific embodiments, the magnitudes of the first early warning value and the second early warning value can be adaptively adjusted according to actual requirements.
It should be noted that, in actual use, the oil gas concentration detected by the flammable gas detector is usually related to the installation position, that is, the detected oil gas concentration data is actually the oil gas concentration of a certain area around the flammable gas detector. However, the area of the gas station is often much larger than the detection range of the flammable gas detector. When oil gas leaks out, oil gas molecules can diffuse to the position of low concentration by the position of high concentration for the oil gas concentration of each position in the filling station is all different. At this time, a large space may exist between the installation position of the fuel gas detector and the position where the fuel gas leaks, so that the fuel gas concentration data detected by the fuel gas detector deviates from the fuel gas concentration at the position where the fuel gas leaks. This may lead to a situation where the concentration of the oil gas detected by the flammable gas detector does not reach the first warning value, whereas the concentration of the oil gas at the location where the oil gas is actually leaking has exceeded the first warning value. For the above situation, there is no way for the flammable gas detector to alarm in time. The application also provides a method for processing the collected oil gas concentration data. The method comprises the following steps:
step S210, acquiring first position information, second position information and temperature information.
The first position information is the positioning position of the gas detection sensor. The second position information is the location of the fuel dispenser. The temperature information is the temperature of the fuel dispenser. The first position information and the second position information can be obtained by a positioning device. The temperature information can be obtained by a temperature detection device arranged on the oiling machine.
And step S220, determining the average diffusion speed according to the temperature information and the oil gas concentration data.
Wherein the average diffusion speed is the diffusion speed of oil gas molecules.
Optionally, step S220 includes the following steps (step S221 to step S226):
And S221, calling the infrared model.
The infrared model is a model capable of reflecting the temperature distribution condition near the oiling machine at different temperatures, and can be obtained by model training according to historical data. The infrared model may be stored in advance in a storage device having a storage function such as a memory.
Step S222, determining temperature distribution information according to the temperature information based on the infrared model.
Wherein the temperature distribution information can reflect a change in temperature with a change in distance. When the temperature information is obtained, the temperature distribution information at the temperature can be obtained through infrared mold modeling.
Step S223, acquiring historical concentration data.
The historical concentration data is historical data of oil gas concentration at the oil gun. The historical concentration data may be oil gas concentration data at the oil gun predicted from the collected oil gas concentration data at each time.
And step S224, determining a concentration mean value according to the historical concentration data.
The concentration average value is the average value of all oil gas concentration data in the historical concentration data. The concentration mean value can be used as a reference value of the oil gas concentration at the oil gun so as to predict the actual oil gas concentration data at the oiling machine.
It will be appreciated that the oil concentration data at the oil gun is higher when the oil gun is in use than when the oil gun is not in use, as evaporation of oil is accelerated when the oil gun is in use. Therefore, in order to make the concentration mean more reference value, it is also necessary to determine the concentration mean from the current state of use of the fuel gun when predicting fuel gas concentration data at the fuel dispenser.
Specifically, the oil gas concentration data in a specified time period is selected from the historical concentration data, and the average value of the oil gas concentration data in the specified time period is calculated to obtain a concentration average value. If the current state of the oil gun is a using state, the appointed time period is the oil gun using period. If the current state of the oil gun is the non-use state, the appointed time period is the unused oil gun period.
And S225, determining a concentration difference value according to the concentration mean value and the oil gas concentration data.
The concentration difference is the difference between the concentration mean value and the oil gas concentration data.
And step S226, determining the average diffusion speed according to the temperature distribution information and the concentration difference value.
Wherein the average diffusion speed is the diffusion speed of oil gas molecules. When the oil gas molecules are diffused, the diffusion speed of the oil gas molecules can be influenced by temperature and concentration differences. The higher the temperature, the faster the diffusion speed, the greater the concentration difference, and the faster the diffusion speed.
The temperature distribution information reflects temperature information at different positions. I.e., the temperature of the fuel dispenser and the temperature of the fuel gas detector may be different. Therefore, the diffusion rate may be different at different locations. In a specific embodiment, a relationship between temperature distribution information, concentration difference, and average diffusion rate may be established. When the temperature distribution information and the concentration difference are determined, the average diffusion rate can be obtained therefrom.
And step S230, predicting the oil gas concentration data at the oiling machine according to the average diffusion speed, the oil gas concentration data, the first position information and the second position information.
Because the oil gas molecules are diffused from the high concentration position to the low concentration position during diffusion, the oil gas concentration data at the oiling machine can be obtained according to the average diffusion speed and the distance between the oiling machine and the combustible gas detector.
Further, if the first position information and the second position information have a difference in height, the diffusion speed in different directions can be determined, and thus the average diffusion speed in the combined direction can be determined.
Considering the influence of the environment on the oil gas concentration, the second early warning values with different values are set in different environments, so that the combustible gas detection system can early warn more accurately, and the possibility of safety problems is reduced.
Specifically, first, humidity information and air pressure information are acquired. And then, determining a second early warning value according to the temperature information, the humidity information and the air pressure information based on the early warning value comparison table. The warning value comparison table may be stored in advance in a storage device having a storage function such as a memory.
The combustible gas detection device for the oiling machine has the implementation principle that the built-in power supply module 1 is adopted to supply power to the gas concentration detection module 2, the wireless communication module 3, the alarm module 4 and the control module 5, an external power supply system is not required to be configured for supplying power, the installation and the use of the combustible gas detection device can be facilitated, and the convenience of the combustible gas detection device is improved.
The foregoing description of the preferred embodiments of the application is not intended to limit the scope of the application in any way, including the abstract and drawings, in which case any feature disclosed in this specification (including abstract and drawings) may be replaced by alternative features serving the same, equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Claims (5)
1. The combustible gas detection device for the oiling machine is characterized by comprising a built-in power supply module (1), a gas concentration detection module (2), a wireless communication module (3), an alarm module (4) and a control module (5);
The control module (5) is connected with the gas concentration detection module (2);
The wireless communication module (3) is connected with the control module (5);
the alarm module (4) is connected with the wireless communication module (3);
The built-in power supply module (1) is respectively connected with the gas concentration detection module (2), the wireless communication module (3), the alarm module (4) and the control module (5);
The built-in power supply module (1) comprises an electromagnetic filtering unit (11), a first rectifying and filtering unit (12), a protection unit, a switching unit (14), a transformer (15) and a second rectifying and filtering unit (16);
The first rectifying and filtering unit (12) is connected with the electromagnetic filtering unit (11);
the switching unit (14) is connected with the first rectifying and filtering unit (12) and is connected with the control module (5) through the protection unit;
the primary coil of the transformer (15) is connected with the switching unit (14), and the secondary coil is connected with the second rectifying and filtering unit (16);
the protection unit comprises an overload protection subunit (131) and an overvoltage protection subunit (132);
the control module (5) is further configured to:
acquiring oil gas concentration data;
When the oil gas concentration data reach a preset first early warning value, sending an alarm signal to an alarm;
when the oil gas concentration data reach a preset second early warning value, sending a cutting-off signal to the oiling machine so as to stop the oiling machine from working;
the control module (5) is further configured to:
after the oil gas concentration data is obtained, the method further comprises the following steps:
Acquiring first position information, second position information and temperature information, wherein the first position information is the positioning position of a gas detection sensor, and the second position information is the positioning position of an oiling machine;
determining an average diffusion speed according to the temperature information and the oil gas concentration data;
predicting oil gas concentration data at the oiling machine according to the average diffusion speed, the oil gas concentration data, the first position information and the second position information;
the control module (5) is further configured to:
the determining the average diffusion speed according to the temperature information and the oil gas concentration data comprises the following steps:
Calling an infrared model;
determining temperature distribution information according to the temperature information based on an infrared model;
acquiring historical concentration data, wherein the historical concentration data is the historical data of oil gas concentration data at the oiling machine;
Determining a concentration mean value according to the historical concentration data;
determining a concentration difference value according to the concentration mean value and the oil gas concentration data;
and determining the average diffusion speed according to the temperature distribution information and the concentration difference value.
2. The fuel gas detection device for a fuel dispenser of claim 1, wherein said control module (5) is further configured to:
The determining a concentration mean value from the historical concentration data includes:
selecting oil gas concentration data in a specified time period from the historical concentration data;
and calculating the average value of the oil gas concentration data in the designated time period to obtain the concentration average value.
3. The fuel gas detection device for a fuel dispenser of claim 2, wherein said control module (5) is further configured to:
the selecting the oil gas concentration data of a specified time period from the historical concentration data comprises the following steps:
Acquiring a current state;
If the current state is the use state, the appointed time period is the oil gun use period.
4. The fuel gas detection device for a fuel dispenser of claim 3, wherein said control module (5) is further configured to:
the selecting the oil gas concentration data of a specified time period from the historical concentration data further comprises:
if the current state is the non-use state, the designated time period is the unused oil gun period.
5. The fuel gas detection device for a fuel dispenser of claim 1, wherein said control module (5) is further configured to:
the method for determining the second early warning value comprises the following steps:
acquiring humidity information and air pressure information;
and determining a second early warning value according to the temperature information, the humidity information and the air pressure information based on an early warning value comparison table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311172293.7A CN117214407B (en) | 2023-09-12 | 2023-09-12 | A combustible gas detection device for fuel dispensers |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311172293.7A CN117214407B (en) | 2023-09-12 | 2023-09-12 | A combustible gas detection device for fuel dispensers |
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| CN117214407A CN117214407A (en) | 2023-12-12 |
| CN117214407B true CN117214407B (en) | 2026-02-10 |
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| JP2003004698A (en) * | 2001-06-26 | 2003-01-08 | Nissan Motor Co Ltd | Combustible gas detector |
| JP5141304B2 (en) * | 2008-03-07 | 2013-02-13 | 凸版印刷株式会社 | Gas concentration distribution measuring device |
| CN114495441B (en) * | 2022-01-07 | 2023-05-09 | 青岛黄海学院 | A gas filling detection device and detection method for a combustible gas detector |
| CN114463954B (en) * | 2022-04-13 | 2022-06-21 | 尼特智能科技股份有限公司 | Combustible gas monitoring and early warning system and method based on Internet of things |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204614174U (en) * | 2015-05-12 | 2015-09-02 | 深圳市领航卫士安全技术有限公司 | Combustible gas detecting device |
| CN205491274U (en) * | 2015-12-31 | 2016-08-17 | 珠海金晟照明科技有限公司 | LED power supply |
| CN114484292A (en) * | 2021-12-20 | 2022-05-13 | 天信仪表集团有限公司 | Combustible gas monitoring device and method |
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