CN115523551A - A carbon dioxide refrigeration rotary dehumidifier - Google Patents
A carbon dioxide refrigeration rotary dehumidifier Download PDFInfo
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- CN115523551A CN115523551A CN202211311058.9A CN202211311058A CN115523551A CN 115523551 A CN115523551 A CN 115523551A CN 202211311058 A CN202211311058 A CN 202211311058A CN 115523551 A CN115523551 A CN 115523551A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 45
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 22
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 17
- 238000007791 dehumidification Methods 0.000 claims abstract description 65
- 239000003507 refrigerant Substances 0.000 claims abstract description 8
- 230000008929 regeneration Effects 0.000 claims description 41
- 238000011069 regeneration method Methods 0.000 claims description 41
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010926 purge Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 239000000306 component Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 239000002274 desiccant Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1032—Desiccant wheel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Gases (AREA)
Abstract
Description
技术领域technical field
本发明涉及除湿机领域，更确切地说是一种二氧化碳制冷转轮除湿机。The invention relates to the field of dehumidifiers, in particular to a carbon dioxide refrigeration runner dehumidifier.
背景技术Background technique
现有的制冷热回收在除湿机上的应用存在以下问题：The application of existing refrigeration heat recovery on dehumidifiers has the following problems:
1、普通湿度转轮除湿机组制冷热回收再生温度低，除湿机组选型大；1. The refrigeration heat recovery and regeneration temperature of the ordinary humidity wheel dehumidification unit is low, and the selection of the dehumidification unit is large;
2、低露点热回收机组再生回收温度低，机器选型型号过大，造价高，处理降温温度要求过低，一般PC出风温度要求7度左右，冷媒温度接近冰点，容易造成蒸发器结冰造成系统不稳定，可靠性差。2. The low dew point heat recovery unit has a low regeneration recovery temperature, the model selection of the machine is too large, the cost is high, and the cooling temperature requirement is too low. Generally, the PC air outlet temperature is required to be about 7 degrees, and the refrigerant temperature is close to freezing point, which is easy to cause the evaporator to freeze. Cause system instability and poor reliability.
发明内容Contents of the invention
本发明的目的是提供一种二氧化碳制冷转轮除湿机，其可以解决现有技术中的除湿系统的除湿不稳定，再生加热后温度高，相同除湿量机型选型小，减少客户投资成本，且可靠性差的缺点。The purpose of the present invention is to provide a carbon dioxide refrigeration wheel dehumidifier, which can solve the unstable dehumidification of the dehumidification system in the prior art, high temperature after regeneration and heating, small selection of models with the same dehumidification capacity, and reduce customer investment costs. And the disadvantage of poor reliability.
本发明采用以下技术方案：The present invention adopts following technical scheme:
一种二氧化碳制冷转轮除湿机，包括第一PC蒸发器和第二PC蒸发器，所述第一PC蒸发器为普通冷媒制冷系统，所述第二PC蒸发器为CO2制冷系统。A carbon dioxide refrigeration rotary dehumidifier includes a first PC evaporator and a second PC evaporator, the first PC evaporator is a common refrigerant refrigeration system, and the second PC evaporator is a CO2 refrigeration system.
还包括：处理风过滤器、除湿转轮、处理风机、第一PC冷凝器系统、第二PC系统压缩组件、第二PC系统冷凝器和再生系统风机。Also included: process air filter, dehumidification wheel, process fan, 1st PC system condenser system, 2nd PC system compression assembly, 2nd PC system condenser, and regeneration system fan.
所述除湿转轮分为再生区域、处理区域和PURGE区域。The dehumidification wheel is divided into a regeneration area, a treatment area and a PURGE area.
处理空气通过处理风过滤器过滤后，送入到第一PC蒸发器进行初步降温，再送入到第二PC蒸发器降温至12度出风，再送入到除湿转轮处理区域中进行除湿，除湿后的空气通过处理风机送出。After the processed air is filtered through the processing air filter, it is sent to the first PC evaporator for preliminary cooling, then sent to the second PC evaporator to cool down to 12 degrees, and then sent to the dehumidification wheel processing area for dehumidification, dehumidification The final air is sent out through the processing fan.
所述第一PC冷凝器系统包括储液器、冷凝器、变频风机和气液分离器。The first PC condenser system includes a liquid receiver, a condenser, a frequency conversion fan and a gas-liquid separator.
所述第二PC蒸发器、所述第二PC系统压缩组件和所述第二PC系统冷凝器之间设有回热器。A heat regenerator is provided between the second PC evaporator, the second PC system compression assembly and the second PC system condenser.
再生空气通过所述第二PC系统蒸发器后送入到除湿转轮PURGE区域，通过除湿转轮后第二PC系统冷凝器进行加热，然后再通过除湿转轮再生区域，最后通过所述再生系统风机送出。The regeneration air is sent to the PURGE area of the dehumidification rotor after passing through the evaporator of the second PC system, heated by the condenser of the second PC system after passing through the dehumidification rotor, then passes through the regeneration area of the dehumidification rotor, and finally passes through the regeneration system The fan sends out.
新风通过所述第二PC系统冷凝器进行加热，然后再通过除湿转轮再生区域，最后通过所述再生系统风机送出。。The fresh air is heated by the condenser of the second PC system, then passed through the regeneration area of the dehumidification wheel, and finally sent out by the fan of the regeneration system. .
本发明的优点是：除湿系统中第二级制冷系统改为CO2制冷系统，除湿机除湿量稳定可靠。The invention has the advantages that: the second-stage refrigeration system in the dehumidification system is changed to a CO2 refrigeration system, and the dehumidification capacity of the dehumidifier is stable and reliable.
附图说明Description of drawings
下面结合实施例和附图对本发明进行详细说明，其中：The present invention is described in detail below in conjunction with embodiment and accompanying drawing, wherein:
图1是本发明中第一实施例的结构示意图。Fig. 1 is a schematic structural diagram of the first embodiment of the present invention.
图2是本发明的第二实施例的结构示意图。Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
图3是转轮区域划分示意图。Fig. 3 is a schematic diagram of the area division of the runner.
具体实施方式detailed description
下面进一步阐述本发明的具体实施方式：Further set forth the specific embodiment of the present invention below:
本发明公开了一种二氧化碳制冷转轮除湿机，包括第一PC系统和第二PC系统，所述第一PC系统为普通冷媒制冷系统或者冷水表冷，所述第二PC系统为CO2制冷系统。The invention discloses a carbon dioxide refrigeration rotary dehumidifier, comprising a first PC system and a second PC system, the first PC system is a common refrigerant refrigeration system or cold water surface cooling, and the second PC system is a CO2 refrigeration system system.
本发明还包括处理风过滤器、第一PC蒸发器、第二PC蒸发器、除湿转轮、处理风机、第一PC冷凝器系统、第二PC系统压缩组件、第二PC系统冷凝器、再生系统风机。处理风过滤器可过滤处理新风中的灰尘得到再生空气，第一PC蒸发器对再生空气初步降温，第二PC蒸发器对再生空气进一步降温至12度出风；除湿转轮是除湿机核心部件，吸附再生空气中水分；处理风机将降温干燥后的空气送出，第一PC冷凝器系统给第一PC提供冷源，第一PC冷凝器系统也可以是冷水机组;第二PC系统冷凝器，其给除湿系统的再生风加热，从而加热除湿转轮;再生系统风机，其为通过除湿转轮之后的湿空气的排风风机;第二PC系统压缩组件包括气氛等部件。第二PC蒸发器、第二PC系统压缩组件和第二PC系统冷凝器之间设有回热器，通过冷凝器对再生风进行加热，从而加热除湿转轮。The invention also includes process air filter, first PC evaporator, second PC evaporator, dehumidification rotor, process fan, first PC condenser system, second PC system compression assembly, second PC system condenser, regeneration System fan. The treatment air filter can filter and process the dust in the fresh air to obtain regenerated air. The first PC evaporator initially cools the regenerated air, and the second PC evaporator further cools the regenerated air to 12 degrees. The dehumidification wheel is the core component of the dehumidifier , to absorb moisture in the regenerated air; the processing fan sends out the cooled and dried air, and the first PC condenser system provides a cold source for the first PC, and the first PC condenser system can also be a water chiller; the second PC system condenser, It heats the regeneration air of the dehumidification system, thereby heating the dehumidification rotor; the regeneration system fan is an exhaust fan for the humid air passing through the dehumidification rotor; the second PC system compression component includes components such as atmosphere. A regenerator is provided between the second PC evaporator, the second PC system compression assembly and the second PC system condenser, and the regeneration air is heated by the condenser to heat the dehumidification rotor.
第一PC冷凝器系统包括储液器、冷凝器、变频风机、气液分离器。The first PC condenser system includes a liquid receiver, a condenser, a frequency conversion fan, and a gas-liquid separator.
本发明中，除湿转轮内部结构进行分块处理，通过第二PC蒸发器处理后的空气从除湿转轮的处理区域通过，除湿转轮对其干燥除湿后得到需求的空气然后通过处理风机送出，通过第二PC蒸发器处理后的部分空气先经过除湿转轮PURGE区域吸收部分显热后再通过第二PC系统冷凝器加热后的空气从除湿转轮的再生通过，从而对除湿转轮进行烘干加热，由于除湿转轮一直处理转动过程中，因此除湿转轮会一直处理除湿和被干燥的平衡中，从而可以得到稳定的除湿效率。In the present invention, the internal structure of the dehumidification rotor is divided into blocks, and the air processed by the second PC evaporator passes through the processing area of the dehumidification rotor, and the dehumidification rotor obtains the required air after drying and dehumidifying it, and then sends it out through the processing fan , part of the air treated by the second PC evaporator first passes through the PURGE area of the dehumidification rotor to absorb part of the sensible heat, and then passes through the second PC system condenser to regenerate the dehumidification rotor. Drying and heating, since the dehumidification wheel is always in the process of rotation, the dehumidification wheel will always be in the balance of dehumidification and drying, so that stable dehumidification efficiency can be obtained.
实施例1Example 1
如图1所示，本发明中公开了一种二氧化碳制冷转轮除湿机，包括：处理风过滤器11、第一PC蒸发器12、第二PC蒸发器13、除湿转轮14、处理风机15、第一PC冷凝器系统或者冷水机组16、第二PC系统压缩组件17、第二PC系统冷凝器18、再生系统风机19。第二PC蒸发器13、第二PC系统压缩组件17和第二PC系统冷凝器18之间设有回热器20。除湿转轮4分为再生区域42、处理区域43和PURGE区域41。As shown in Figure 1, the present invention discloses a carbon dioxide refrigeration rotor dehumidifier, including: a
如图1所示，其为普通露点除湿机，第一PC系统可以为普通冷媒制冷系统或者冷水表冷，根据OA工况变化进行控制第一PC出风温度得到设计值，第二PC为CO2制冷系统，第二PC系统压缩组件、回热器和第二PC系统冷凝器作为除湿机再生加热器及部件，第二PC蒸发器的出风为12度左右，第二PC系统冷凝器（RH）的出风温度可以得到稳定的85度左右，此时除湿机除湿量稳定可靠。As shown in Figure 1, it is an ordinary dew point dehumidifier. The first PC system can be an ordinary refrigerant refrigeration system or cold water surface cooling. According to the change of OA working conditions, the first PC outlet air temperature is controlled to obtain the design value, and the second PC is CO. 2 Refrigeration system, the compression components of the second PC system, the regenerator and the condenser of the second PC system are used as the regeneration heater and components of the dehumidifier. The outlet air of the second PC evaporator is about 12 degrees, and the condenser of the second PC system ( RH) The outlet air temperature can be stabilized at about 85 degrees, and the dehumidification capacity of the dehumidifier is stable and reliable at this time.
本实施例中，第一PC蒸发器12也可以采用冷水盘管。第一PC冷凝器系统包括储液器161、冷凝器162、变频风机163、气液分离器164。In this embodiment, the
本实施例中，送入到第二PC系统冷凝器内的空气为新风，通过第二PC系统冷凝器进行加热，加热后送入到除湿转轮再生区域，并对除湿转轮的特定部分进行干燥，然后生成的废气通过再生系统风机排出。In this embodiment, the air sent into the condenser of the second PC system is fresh air, which is heated by the condenser of the second PC system, and sent to the regeneration area of the dehumidification rotor after heating, and the specific part of the dehumidification rotor is dehumidified. Drying, the resulting exhaust air is then exhausted through the regeneration system fan.
实施例2Example 2
如图2所示，本发明中公开了一种二氧化碳制冷转轮除湿机，包括：处理风过滤器1、第一PC蒸发器2、第二PC蒸发器3、除湿转轮4、处理风机5、第一PC冷凝器系统或者冷水机组6、第二PC系统压缩组件7、第二PC系统冷凝器8、再生系统风机9。第二PC蒸发器3、第二PC系统压缩组件7和第二PC系统冷凝器8之间设有回热器10，通过冷凝器对再生风进行加热，从而加热除湿转轮4。除湿转轮4分为再生区域42、处理区域43和PURGE区域41。As shown in Figure 2, the present invention discloses a carbon dioxide refrigeration rotary dehumidifier, including: a processing air filter 1, a first PC evaporator 2, a second PC evaporator 3, a dehumidification rotor 4, and a processing fan 5 , the first PC condenser system or chiller 6 , the second PC system compression assembly 7 , the second PC system condenser 8 , and the regeneration system fan 9 . A
本实施例为低露点除湿机，同样第一PC系统可以为普通冷媒制冷系统或者冷水表冷，根据OA工况变化进行控制第一PC出风温度得到设计值，第二PC为CO2制冷系统，第二PC系统压缩组件、回热器和第二PC系统冷凝器作为除湿机再生加热器及部件，第二PC蒸发器的出风设计为12度左右，第二PC系统冷凝器（RH） 出风温度可以得到稳定的85度左右。此时除湿机除湿量稳定可靠。This embodiment is a low dew point dehumidifier. Similarly, the first PC system can be a common refrigerant refrigeration system or cold water surface cooling. According to the change of OA working conditions, the first PC outlet air temperature is controlled to obtain the design value, and the second PC is a CO 2 refrigeration system. , the second PC system compression assembly, regenerator and second PC system condenser are used as dehumidifier regeneration heater and components, the outlet air of the second PC evaporator is designed to be about 12 degrees, and the second PC system condenser (RH) The outlet air temperature can be stabilized around 85 degrees. At this time, the dehumidification capacity of the dehumidifier is stable and reliable.
本实施例中，第一PC蒸发器2也可以采用冷水盘管。第一PC冷凝器系统包括储液器61、冷凝器62、变频风机63、气液分离器64。In this embodiment, the first PC evaporator 2 may also use a cold water coil. The first PC condenser system includes a
处理风过滤器1用于过滤处理空气灰尘；第一PC蒸发器2对处理风初步降温，第一PC蒸发器12也可以采用冷水盘管。第二PC蒸发器3对处理风进一步降温至12度出风；除湿转轮4是除湿机核心部件，吸附处理空气中水分，使处理空气变的干燥；处理风机5将处理风机处理完成的空气送出；第一PC冷凝器系统6给第一PC提供冷源，第一PC冷凝器系统也可以是冷水机组；第二PC蒸发器3、第二PC系统压缩组件7和第二PC系统冷凝器8给除湿系统再生风加热，实现热能回收，降低系统能耗；再生系统风机9，其为通过除湿转轮之后的湿空气的排风风机。第二PC系统压缩组件包括气氛等部件。The processing air filter 1 is used to filter the processing air dust; the first PC evaporator 2 preliminarily cools the processing air, and the
空气通过处理风过滤器1过滤处理其中的灰尘，处理后的空气通过第一PC蒸发器2进行降温，然后通过第二PC蒸发器3进一步降温度，然后送入到除湿转轮4。The air passes through the treatment air filter 1 to filter and process the dust therein, and the treated air passes through the first PC evaporator 2 to cool down, then passes through the second PC evaporator 3 to further reduce the temperature, and then sends it to the dehumidification wheel 4 .
本实施例中，OA(新风)进入到处理风过滤器1，通过该处理风过滤器进行过滤，除去其中的杂质，然后送入到第一PC蒸发器2，通过该第一PC蒸发器2进行初步降温，然后送入到第二PC蒸发器内进行再次降温3，通过第二PC蒸发器处理后的风温度可以降低至12度出风，经过第二PC蒸发器处理后风送入到除湿转轮4，通过除湿转轮处理区域进行干燥，干燥好后空气通过处理风机送出。In the present embodiment, OA (fresh air) enters the treatment air filter 1, filters through the treatment air filter, removes impurities therein, and then sends it to the first PC evaporator 2, passes through the first PC evaporator 2 Perform preliminary cooling, and then send it to the second PC evaporator for further cooling 3, the temperature of the air after being processed by the second PC evaporator can be reduced to 12 degrees, and the air is sent to the second PC evaporator after being processed. The dehumidification rotor 4 is dried through the treatment area of the dehumidification rotor, and the air is sent out through the treatment fan after drying.
本实施例中，除湿转轮进行了区块分割，且除湿转轮一直处于转动中。经过第二PC蒸发器处理后气体分为两路，一路送入到除湿转轮处理区域中，通过除湿转轮进行除湿干燥，得到符合需求的空气并通过处理风机送出，然后另一部分送入到除湿转轮PURGE区域通过除湿转轮加热，吸收除湿转轮的部分热量（起到热回收作用），然后再送入到第二PC系统冷凝器中加热再送入除湿转轮再生区域，对转轮进行烘干再生，最后由再生风机将湿空气排出室外。第二PC冷凝器给除湿系统再生风加热，实现热能回收，降低系统能耗。In this embodiment, the dehumidification rotor is divided into blocks, and the dehumidification rotor is always in rotation. After being treated by the second PC evaporator, the gas is divided into two paths, one path is sent to the dehumidification wheel processing area, and dehumidification and drying are carried out through the dehumidification wheel to obtain air that meets the requirements and sent out by the processing fan, and then the other part is sent to the The PURGE area of the desiccant rotor is heated by the desiccant rotor to absorb part of the heat of the desiccant rotor (for heat recovery), and then sent to the second PC system condenser to be heated and then sent to the regeneration area of the desiccant rotor to regenerate the rotor Dry and regenerate, and finally the humid air is discharged outside by the regeneration fan. The second PC condenser heats the regeneration air of the dehumidification system to realize heat recovery and reduce system energy consumption.
本发明提高冷凝热回收温度，降低转轮处理进风温度，提高系统稳定性；降低转轮处理进风温度要求，提高系统稳定性。The invention improves the recovery temperature of condensation heat, reduces the temperature of the inlet air processed by the runner, and improves the system stability; reduces the requirement of the inlet air temperature of the runner, and improves the system stability.
本发明中的低露点除湿机，同样第一PC系统可以为普通冷媒制冷系统或者冷水表冷，根据OA工况变化进行控制第一PC出风温度得到设计值，第二PC系统为CO2制冷系统，冷凝器作为除湿机再生加热器及部件，第二PC系统出风设计为12度左右（蒸发温度7度左右，远离冰点温度，系统运行时避免蒸发器有结冰现象出现），RH 出风温度可以得到稳定的85度左右，与传统冷媒R134a,或R410a相比大大提高了冷凝温度，提高了热回收效率，此时除湿机除湿量稳定可靠。In the low dew point dehumidifier in the present invention, the first PC system can also be a common refrigerant refrigeration system or cold water surface cooling, and the first PC outlet air temperature is controlled according to the change of OA working conditions to obtain the design value, and the second PC system is CO 2 refrigeration System, the condenser is used as the regeneration heater and components of the dehumidifier, the air outlet of the second PC system is designed to be about 12 degrees (the evaporation temperature is about 7 degrees, far away from the freezing point temperature, and the evaporator is prevented from freezing when the system is running), and the RH output The air temperature can be stabilized at about 85 degrees. Compared with the traditional refrigerant R134a or R410a, the condensation temperature is greatly increased, and the heat recovery efficiency is improved. At this time, the dehumidification capacity of the dehumidifier is stable and reliable.
本发明通过对二氧化碳制冷系统冷凝热回收，成功解决了再生温度过低的问题，从传统再生热回收将再生温度加热到60度以内，提高到85度。对转轮进风温度要求可以提高到12度，解决制冷系统控制精度要求过高问题，从而提高了系统运行的稳定性。The invention successfully solves the problem of too low regeneration temperature by recovering the condensation heat of the carbon dioxide refrigeration system, and raises the regeneration temperature to within 60 degrees from the traditional regeneration heat recovery to 85 degrees. The requirement for the inlet air temperature of the runner can be increased to 12 degrees, which solves the problem of high control precision of the refrigeration system, thereby improving the stability of the system operation.
本发明中将除湿系统中第二级制冷系统改为CO2制冷系统，并将此系统中冷凝器作为转轮除湿系统的再生加热器;第二级制冷系统出风温度控制在12度左右，保证制冷系统控制的稳定性和可靠性。In the present invention, the second-stage refrigeration system in the dehumidification system is changed to a CO2 refrigeration system, and the condenser in this system is used as the regenerative heater of the wheel dehumidification system; the outlet air temperature of the second-stage refrigeration system is controlled at about 12 degrees, Ensure the stability and reliability of refrigeration system control.
本发明中：In the present invention:
1.第二PC冷凝器出口可以得到稳定的85度出风。1. The outlet of the second PC condenser can get a stable 85 degree air outlet.
2.第二PC蒸发器出口同时得到12度稳定出风，整个CO2制冷系统运行稳定，转轮除湿效果稳定。2. At the same time, the outlet of the second PC evaporator gets a stable 12-degree air flow, the entire CO2 refrigeration system operates stably, and the dehumidification effect of the runner is stable.
3.实施例2中的除湿机能耗和实施例1比明显降低，二级制冷功率如果是100KW,再生可获得150KW制热量，耗电量只有50KW(CO2制冷系统COP 为2左右，如果换成电加热再生和普通制冷系统，（普通制冷系统COP一般为3左右）电能耗为100KW/3+150KW=183KW),可节省133KW 电能。3. The energy consumption of the dehumidifier in Example 2 is significantly lower than that in Example 1. If the secondary refrigeration power is 100KW, the regeneration can obtain 150KW of heat, and the power consumption is only 50KW (the COP of the CO 2 refrigeration system is about 2. Electric heating regeneration and ordinary refrigeration system, (the COP of ordinary refrigeration system is generally about 3) and the electric energy consumption is 100KW/3+150KW=183KW), which can save 133KW electric energy.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.
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