CN105276736A - Heat pump type total heat recovery new-air air conditioning unit with condensation reheating function - Google Patents
Heat pump type total heat recovery new-air air conditioning unit with condensation reheating function Download PDFInfo
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- CN105276736A CN105276736A CN201510826610.1A CN201510826610A CN105276736A CN 105276736 A CN105276736 A CN 105276736A CN 201510826610 A CN201510826610 A CN 201510826610A CN 105276736 A CN105276736 A CN 105276736A
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- 238000009833 condensation Methods 0.000 title claims abstract description 28
- 230000005494 condensation Effects 0.000 title claims abstract description 28
- 238000003303 reheating Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 title abstract description 24
- 238000004378 air conditioning Methods 0.000 title abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000003507 refrigerant Substances 0.000 claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000005057 refrigeration Methods 0.000 claims abstract description 7
- 239000002826 coolant Substances 0.000 claims 5
- 230000001105 regulatory effect Effects 0.000 abstract description 10
- 238000007791 dehumidification Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
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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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Other Air-Conditioning Systems (AREA)
- Central Air Conditioning (AREA)
Abstract
Description
技术领域：Technical field:
本发明涉及空调机组，尤其涉及一种带冷凝再热的热泵型全热回收新风空调机组。 The invention relates to an air conditioning unit, in particular to a heat pump type full heat recovery fresh air air conditioning unit with condensation reheating.
背景技术：Background technique:
随着人们对室内空气品质的要求不断提高，新风空调机组的使用越来越广泛。新风空调机组是一种有效的空气净化设备，一方面把室内污浊的空气排出室外，另一方面把室外新鲜的空气经过过滤和热湿处理后，再输入到室内。但如果不采用排风热回收技术，新风的热湿处理将消耗大量的能源。 With the continuous improvement of people's requirements for indoor air quality, the use of fresh air air conditioning units is becoming more and more extensive. The fresh air air conditioner unit is an effective air purification equipment. On the one hand, the indoor dirty air is discharged outside, and on the other hand, the fresh outdoor air is filtered and heat-humidified, and then input into the room. However, if the exhaust air heat recovery technology is not used, the heat and humidity treatment of fresh air will consume a lot of energy.
目前常见的新风热回收技术包括板式全热回收装置，转轮式热回收装置，热管式热回收装置，中间热媒式热回收装置。但是上述技术均存在不同的技术瓶颈，例如板式全热回收装置吸水后容易腐烂，转轮式热回收装置会造成新风污染，热管式热回收装置和中间热媒式热回收装置只能回收显热且回收效率低。 At present, common fresh air heat recovery technologies include plate-type total heat recovery devices, rotary wheel-type heat recovery devices, heat pipe-type heat recovery devices, and intermediate heat medium-type heat recovery devices. However, the above-mentioned technologies have different technical bottlenecks. For example, the plate type total heat recovery device is easy to rot after absorbing water, the rotary wheel type heat recovery device will cause fresh air pollution, and the heat pipe type heat recovery device and the intermediate heat medium type heat recovery device can only recover sensible heat. And the recycling efficiency is low.
近年来兴起的热泵式热回收装置因其具有热回收效率高，适应温差范围大，使用方便等诸多优点，广受欢迎。但是传统的热泵式热回收装置由于没有传质过程只能回收显热，而且在梅雨季节送风温度过低，使人感到不适。 The heat pump heat recovery device that has emerged in recent years is very popular because of its high heat recovery efficiency, wide range of adaptability to temperature differences, and convenient use. However, the traditional heat pump heat recovery device can only recover sensible heat because there is no mass transfer process, and the temperature of the air supply is too low during the rainy season, which makes people feel uncomfortable.
本发明是对传统热泵式热回收装置的改进，通过回收蒸发器所产生的冷凝水，夏季降低冷凝温度，提高机组效率；冬季对新风进行加湿，提高室内舒适度。此外，本发明带有冷凝再热功能，在增大除湿能力的同时可以保证舒适的送风温度。在各种环境条件下均可实现送风的温度湿度控制。 The invention is an improvement to the traditional heat pump type heat recovery device. By recovering the condensed water produced by the evaporator, the condensing temperature is reduced in summer and the efficiency of the unit is improved; the fresh air is humidified in winter to improve indoor comfort. In addition, the present invention has the function of condensing and reheating, which can ensure comfortable air supply temperature while increasing the dehumidification capacity. The temperature and humidity control of the air supply can be realized under various environmental conditions.
发明内容：Invention content:
为了解决上述问题，本发明提供了一种通过热泵技术回收排风中的显热和潜热，减少新风热湿处理过程电能和水的消耗，同时通过冷凝再热保证送风温度恒定的技术方案： In order to solve the above problems, the present invention provides a technical solution to recover the sensible heat and latent heat in the exhaust air through heat pump technology, reduce the consumption of electric energy and water in the heat and humidity treatment process of fresh air, and at the same time ensure the constant temperature of the air supply through condensation and reheating:
一种带冷凝再热的热泵型全热回收新风空调机组，包括压缩机、四通换向阀、送风换热器、排风换热器、节流装置、再热器、流量调节阀、制冷剂连接管、新风口、送风风机、排风风机、加湿器、送风口、回风口、排风口、水泵、三通换向阀、风管及水管，空调机组上设置有送风通道和排风通道，送风通道起始于新风口，终止于送风口，排风通道，起始于回风口，终止于排风口，送风通道和排风通道不通过风管联通。压缩机的排气口通过制冷剂连接管与流量调节阀和四通换向阀联通，压缩机的吸气口通过制冷剂连接管与四通换向阀联通。四通换向阀通过制冷剂连接管与压缩机的吸气口与排气口、送风换热器及排风换热器联通。送风换热器上设置有制冷剂通道和空气通道，且送风换热器底部有凝水盘，送风换热器制冷剂通道通过制冷剂连接管与四通换向阀和节流装置联通，的送风换热器的空气通道通过风管与送风风机和再热器联通，送风换热器的凝水盘通过水管，三通换向阀与水泵联通。排风换热器设有制冷剂通道和空气通道，排风换热器底部有凝水盘，排风换热器制冷剂通道通过制冷剂连接管与四通换向阀和节流装置联通，的排风换热器空气通道通过风管与排风风机和加湿器联通，的排风换热器的凝水盘通过水管，三通换向阀与水泵联通。 A heat pump type full heat recovery fresh air air conditioning unit with condensation reheating, including a compressor, a four-way reversing valve, a supply air heat exchanger, an exhaust air heat exchanger, a throttling device, a reheater, a flow regulating valve, Refrigerant connecting pipe, fresh air outlet, air supply fan, exhaust fan, humidifier, air supply outlet, return air outlet, exhaust outlet, water pump, three-way reversing valve, air pipe and water pipe, air supply channel is set on the air conditioning unit And the air exhaust channel, the air supply channel starts from the fresh air outlet and ends at the air supply outlet, and the exhaust air channel starts from the return air outlet and ends at the exhaust air outlet, and the air supply channel and the exhaust air channel are not connected through the air duct. The exhaust port of the compressor communicates with the flow regulating valve and the four-way reversing valve through the refrigerant connecting pipe, and the suction port of the compressor communicates with the four-way reversing valve through the refrigerant connecting pipe. The four-way reversing valve communicates with the suction port and discharge port of the compressor, the air supply heat exchanger and the exhaust air heat exchanger through the refrigerant connecting pipe. There are refrigerant channels and air channels on the air supply heat exchanger, and there is a condensation pan at the bottom of the air supply heat exchanger. The refrigerant channel of the air supply heat exchanger is connected to the four-way reversing valve and throttling device through the refrigerant connecting pipe. Unicom, the air channel of the air supply heat exchanger communicates with the air supply fan and the reheater through the air pipe, the condensation pan of the air supply heat exchanger passes through the water pipe, and the three-way reversing valve communicates with the water pump. The exhaust air heat exchanger is provided with refrigerant channels and air channels, and there is a condensation pan at the bottom of the exhaust air heat exchanger. The refrigerant channel of the exhaust air heat exchanger is connected with the four-way reversing valve and the throttling device through the refrigerant connecting pipe. The air channel of the exhaust air heat exchanger is communicated with the exhaust fan and the humidifier through the air duct, the condensation pan of the exhaust air heat exchanger is communicated with the water pipe, and the three-way reversing valve is communicated with the water pump.
作为优选，节流装置可以为毛细管、短管、热力膨胀阀或电子膨胀阀，通过制冷剂连接管与送风换热器，排风换热器和再热器联通。 Preferably, the throttling device can be a capillary tube, a short tube, a thermal expansion valve or an electronic expansion valve, and communicates with the air supply heat exchanger, the exhaust air heat exchanger and the reheater through the refrigerant connecting pipe.
作为优选，再热器上设有制冷剂通道和空气通道，再热器制冷剂通道通过制冷剂连接管和流量调节阀与节流装置和压缩机排气口联通。 Preferably, the reheater is provided with a refrigerant channel and an air channel, and the reheater refrigerant channel communicates with the throttling device and the exhaust port of the compressor through a refrigerant connecting pipe and a flow regulating valve.
作为优选，加湿器设置在送风通道上，位于再热器和送风口之间，通过水管和水泵与排风换热器的凝水盘联通，另一只加湿器在排风通道上，位于回风口和排风换热器之间，通过水管，水泵和三通换向阀与送风换热器的凝水盘联通。 Preferably, the humidifier is set on the air supply channel, between the reheater and the air supply port, communicates with the condensation pan of the exhaust air heat exchanger through a water pipe and a water pump, and the other humidifier is on the exhaust air channel, located at Between the air return port and the exhaust air heat exchanger, the water pipe, the water pump and the three-way reversing valve are connected with the condensation pan of the air supply heat exchanger.
作为优选，空调机组存在制冷，制热和除湿三种工况。 Preferably, the air-conditioning unit has three working modes of cooling, heating and dehumidification.
本发明的有益效果在于： The beneficial effects of the present invention are:
（1）本发明的空调机组通过完全回收排风显热和蒸发器冷凝水，获得极高的制冷制热效率，同时通过冷凝再热保证制冷工况和除湿工况的送风温度，全热回收机组的节能效果显著，仿真结果显示，本发明在夏季制冷COP可达3.0，冬季制热COP可达4.0。 (1) The air conditioning unit of the present invention obtains extremely high cooling and heating efficiency by completely recovering the sensible heat of the exhaust air and the condensed water of the evaporator. At the same time, the temperature of the air supply under the cooling and dehumidification conditions is guaranteed through condensation and reheating, and the total heat recovery The energy-saving effect of the unit is remarkable, and the simulation results show that the COP of the present invention can reach 3.0 for cooling in summer and 4.0 for heating in winter.
（2）本发明设备在冬季制热工况下不容易结霜，且在环境温度极低的工况下仍能高效制热。 (2) The equipment of the present invention is not easy to frost under winter heating conditions, and can still heat efficiently under extremely low ambient temperature conditions.
（3）本发明设备在梅雨季节可对新风进行除湿再热处理，保证室内环境舒适度。 (3) The device of the present invention can dehumidify and reheat the fresh air during the rainy season to ensure the comfort of the indoor environment.
附图说明：Description of drawings:
图1为实施例1的流程示意图。 Fig. 1 is the schematic flow chart of embodiment 1.
图2为实施例2的流程示意图。 Fig. 2 is the schematic flow chart of embodiment 2.
具体实施方式：detailed description:
为使本发明的发明目的、技术方案和优点更加清楚，下面将结合附图对本发明的实施方式作进一步地详细描述。 In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.
本发明设计了一种带冷凝再热的热泵型全热回收新风空调机组，包括压缩机1、四通换向阀2、送风换热器3、排风换热器4、节流装置5、再热器6、流量调节阀7、制冷剂连接管8、新风口9、送风风机10、排风风机11、加湿器12、送风口13、回风口14、排风口15、水泵16、三通换向阀17、风管18及水管19，空调机组上设置有送风通道和排风通道，送风通道起始于新风口9，终止于送风口13，排风通道起始于回风口14，终止于排风口15，送风通道和排风通道不通过风管18联通。压缩机1的排气口通过制冷剂连接管8与流量调节阀7和四通换向阀2联通，压缩机1的吸气口通过制冷剂连接管8与四通换向阀2导通。四通换向阀2通过制冷剂连接管8与压缩机1的吸气口与排气口、送风换热器3及排风换热器4联通。送风换热器3上设置有制冷剂通道和空气通道，且送风换热器3底部有凝水盘，送风换热器3制冷剂通道通过制冷剂连接管8与四通换向阀2和节流装置5联通，送风换热器3的空气通道通过风管18与送风风机10和再热器6联通，送风换热器3的凝水盘通过水管19，三通换向阀17与水泵16联通。排风换热器4设有制冷剂通道和空气通道，排风换热器4底部有凝水盘，排风换热器4制冷剂通道通过制冷剂连接管8与四通换向阀2和节流装置5联通，排风换热器4空气通道通过风管18与排风风机11和加湿器12联通，排风换热器4的凝水盘通过水管19，三通换向阀17与水泵16联通。 The present invention designs a heat pump type full heat recovery fresh air air conditioning unit with condensation reheating, including a compressor 1, a four-way reversing valve 2, an air supply heat exchanger 3, an exhaust air heat exchanger 4, and a throttling device 5 , reheater 6, flow regulating valve 7, refrigerant connecting pipe 8, fresh air outlet 9, air supply fan 10, exhaust fan 11, humidifier 12, air supply outlet 13, return air outlet 14, exhaust outlet 15, water pump 16 , three-way reversing valve 17, air pipe 18 and water pipe 19, the air-conditioning unit is provided with an air supply passage and an exhaust passage, the air supply passage starts at the new air outlet 9, ends at the air supply outlet 13, and the exhaust air passage begins at The air return port 14 terminates at the air exhaust port 15, and the air supply channel and the air exhaust channel are not communicated through the air duct 18. The discharge port of the compressor 1 communicates with the flow regulating valve 7 and the four-way reversing valve 2 through the refrigerant connecting pipe 8 , and the suction port of the compressor 1 communicates with the four-way reversing valve 2 through the refrigerant connecting pipe 8 . The four-way reversing valve 2 communicates with the suction port and exhaust port of the compressor 1 , the air supply heat exchanger 3 and the exhaust air heat exchanger 4 through the refrigerant connecting pipe 8 . The air supply heat exchanger 3 is provided with a refrigerant channel and an air channel, and there is a condensation pan at the bottom of the air supply heat exchanger 3, and the refrigerant channel of the air supply heat exchanger 3 passes through the refrigerant connecting pipe 8 and the four-way reversing valve 2 communicates with the throttling device 5, the air channel of the air supply heat exchanger 3 communicates with the air supply fan 10 and the reheater 6 through the air pipe 18, the condensation water pan of the air supply heat exchanger 3 passes through the water pipe 19, and the three-way exchange Directional valve 17 communicates with water pump 16. The exhaust air heat exchanger 4 is provided with a refrigerant passage and an air passage, and there is a condensation pan at the bottom of the exhaust air heat exchanger 4. The refrigerant passage of the exhaust air heat exchanger 4 is connected to the four-way reversing valve 2 and the four-way reversing valve 2 through the refrigerant connecting pipe 8. The throttling device 5 is connected, the air channel of the exhaust heat exchanger 4 is connected with the exhaust fan 11 and the humidifier 12 through the air pipe 18, the condensation pan of the exhaust heat exchanger 4 is connected through the water pipe 19, and the three-way reversing valve 17 is connected with the humidifier 12. Water pump 16 Unicom.
其中的节流装置5可以为毛细管、短管、热力膨胀阀或电子膨胀阀，通过制冷剂连接管8与送风换热器3，排风换热器4和再热器6联通。而再热器6上设有制冷剂通道和空气通道，再热器6制冷剂通道通过制冷剂连接管8和流量调节阀7与节流装置5和压缩机1排气口联通。 The throttling device 5 can be a capillary tube, a short tube, a thermal expansion valve or an electronic expansion valve, and communicates with the air supply heat exchanger 3 , the exhaust air heat exchanger 4 and the reheater 6 through the refrigerant connecting pipe 8 . The reheater 6 is provided with a refrigerant passage and an air passage, and the refrigerant passage of the reheater 6 communicates with the throttling device 5 and the exhaust port of the compressor 1 through the refrigerant connecting pipe 8 and the flow regulating valve 7 .
于此同时，加湿器12设置在送风通道上，位于再热器6和送风口13之间，通过水管19和水泵16与排风换热器4的凝水盘联通，另一只加湿器12在排风通道上，位于回风口14和排风换热器4之间，通过水管19，水泵16和三通换向阀17与送风换热器3的凝水盘联通。 At the same time, the humidifier 12 is arranged on the air supply channel, between the reheater 6 and the air supply port 13, and communicates with the condensation pan of the exhaust air heat exchanger 4 through the water pipe 19 and the water pump 16, and the other humidifier 12 is on the air exhaust channel, located between the air return port 14 and the exhaust air heat exchanger 4, through the water pipe 19, the water pump 16 and the three-way reversing valve 17 and the condensation pan of the air supply heat exchanger 3.
实施例1 Example 1
一种带冷凝再热的全热回收新风机存在制冷，制热和除湿三种工况，其具体工作流程如下。 A full heat recovery fresh air machine with condensation reheating has three working conditions of cooling, heating and dehumidification, and its specific working process is as follows.
制冷工况下，送风换热器3作为蒸发器，排风换热器5作为冷凝器，四通换向阀2使制冷剂连接管8联通，流量调节阀7关闭，一个加湿器12和其配套的水泵16开启，另一个加湿器12和其配套的水泵16关闭。制冷剂循环：压缩机1→四通换向阀2→排风换热器6→节流装置5→送风换热器3→四通换向阀2→制冷剂连接管8→压缩机1。新鲜空气从新风口9被吸入后，经风管18，送风风机10进入送风换热器3被冷却除湿，最后经送风口13送入房间或其他空气处理设备。室内排风从回风口14被吸入后，经风管18送入加湿器12加湿，再经风管18进入排风换热器5吸收制冷剂冷凝热，最后经排风风机11至排风口15排出。送风换热器3凝水盘中的冷凝水经水管19，水泵16送入加湿器12，用于提高排风相对湿度，降低制冷系统冷凝温度，提高系统效率。 Under cooling conditions, the air supply heat exchanger 3 acts as an evaporator, the exhaust air heat exchanger 5 acts as a condenser, the four-way reversing valve 2 connects the refrigerant connecting pipe 8, the flow regulating valve 7 closes, a humidifier 12 and Its supporting water pump 16 is opened, and another humidifier 12 and its supporting water pump 16 are closed. Refrigerant cycle: compressor 1→four-way reversing valve 2→exhaust air heat exchanger 6→throttling device 5→supply air heat exchanger 3→four-way reversing valve 2→refrigerant connecting pipe 8→compressor 1 . After the fresh air is sucked from the new air outlet 9, through the air pipe 18, the air supply fan 10 enters the air supply heat exchanger 3 to be cooled and dehumidified, and finally sent to the room or other air treatment equipment through the air supply outlet 13. After the indoor exhaust air is sucked from the air return port 14, it is sent to the humidifier 12 for humidification through the air duct 18, and then enters the exhaust air heat exchanger 5 through the air duct 18 to absorb the condensation heat of the refrigerant, and finally passes through the exhaust fan 11 to the exhaust air outlet. 15 discharge. The condensed water in the air supply heat exchanger 3 condensate pan is sent into the humidifier 12 through the water pipe 19 and the water pump 16 to improve the relative humidity of the exhaust air, reduce the condensing temperature of the refrigeration system, and improve the system efficiency.
制热工况下，送风换热器3作为冷凝器，排风换热器5作为蒸发器，四通换向阀2使相邻的制冷剂连接管8联通，流量调节阀7关闭，其中一组加湿器12和其相对应的水泵16开启，另一组加湿器12和其相对应的水泵16关闭。制冷剂循环：压缩机1→四通换向阀2→送风换热器3→节流装置5→排风换热器6→四通换向阀2→压缩机1。新鲜空气从新风口9被吸入后，经送风风机10进入送风换热器3被加热，经风管送入加湿器12加湿，最后经送风口13送入房间或其他空气处理设备。室内排风从回风口14被吸入后，经风管送入排风换热器6冷却析湿，最后经排风风机11从排风口15排出。排风换热器6的凝水盘中的冷凝水经水管19流经水泵16送入加湿器12，用于新风的加湿处理。 Under the heating condition, the air supply heat exchanger 3 acts as a condenser, the exhaust air heat exchanger 5 acts as an evaporator, the four-way reversing valve 2 connects the adjacent refrigerant connecting pipe 8, and the flow regulating valve 7 closes, wherein One group of humidifiers 12 and their corresponding water pumps 16 are turned on, and the other group of humidifiers 12 and their corresponding water pumps 16 are turned off. Refrigerant cycle: compressor 1→four-way reversing valve 2→supply air heat exchanger 3→throttling device 5→exhaust air heat exchanger 6→four-way reversing valve 2→compressor 1. After the fresh air is sucked from the fresh air outlet 9, it enters the air supply heat exchanger 3 through the air supply fan 10 to be heated, and is sent to the humidifier 12 for humidification through the air pipe, and finally sent to the room or other air treatment equipment through the air supply outlet 13. After the indoor exhaust air is sucked from the air return port 14, it is sent into the exhaust air heat exchanger 6 through the air duct to cool and dehumidify, and finally it is discharged from the air exhaust port 15 through the exhaust fan 11. The condensed water in the condensate pan of the exhaust air heat exchanger 6 flows through the water pipe 19 through the water pump 16 and is sent to the humidifier 12 for humidification of the fresh air.
除湿工况是在制冷工况的基础上，开启流量调节阀7。新风在送风换热器3中被冷却除湿后，经再热器6提高干球温度，保证送风舒适度。除湿工况适用于春秋季，温度适宜但湿度较大的天气条件。 The dehumidification working condition is to open the flow regulating valve 7 on the basis of the cooling working condition. After the fresh air is cooled and dehumidified in the air supply heat exchanger 3, the dry bulb temperature is raised through the reheater 6 to ensure the comfort of the air supply. The dehumidification condition is suitable for spring and autumn, when the temperature is suitable but the humidity is high.
实施例2 Example 2
一种带冷凝再热的全热回收新风机（单水泵），结构和流程如图2所示。在实施例1的基础上，减少了水泵16，增加了三通换向阀17和一些水管19。三种工况下制冷循环与空气流路均与实施例1相同，冷凝水流路做了如下变化：在制冷工况、除湿工况或制热工况下，水泵16运行，三通换向阀17使部分水管联通。 A full heat recovery fresh air fan (single water pump) with condensation reheating, the structure and process are shown in Figure 2. On the basis of Embodiment 1, the water pump 16 is reduced, and the three-way reversing valve 17 and some water pipes 19 are added. The refrigeration cycle and air flow path under the three working conditions are the same as those in Embodiment 1, and the condensed water flow path has been changed as follows: in the cooling working condition, dehumidifying working condition or heating working condition, the water pump 16 operates, and the three-way reversing valve 17 Make part of the water pipe Unicom.
上述实施例中未完整展示制冷剂循环和风道的所有部件，实施过程中，选用不同制冷剂，在制冷剂回路设置四通换向阀、高压储液器、气液分离器、油分离、过滤器、干燥器等常见制冷辅件，在水管设置过滤器，杀菌装置等水处理附件，在风道设置过滤器，消声器，辅助加湿器，辅助加热器，杀菌装置等空气处理附件，选用不同的送风喷口和回风格栅，改变风机位置，或不脱离本发明技术方案的精神增加热交换器，风机和风阀等，均不能视为对本发明进行了实质性改进，应属于本发明保护范围。 In the above embodiment, all the components of the refrigerant cycle and air duct are not fully shown. During the implementation process, different refrigerants are selected, and four-way reversing valves, high-pressure liquid receivers, gas-liquid separators, oil separation, and filtration are installed in the refrigerant circuit. Common refrigeration accessories such as refrigerators and dryers, water treatment accessories such as filters and sterilizing devices are installed in the water pipes, and air treatment accessories such as filters, mufflers, auxiliary humidifiers, auxiliary heaters, and sterilizing devices are installed in the air ducts. Air supply nozzles and return air grilles, changing the position of the fan, or adding heat exchangers, fans and air valves without departing from the spirit of the technical solution of the present invention, cannot be regarded as substantial improvements to the present invention, and should belong to the protection scope of the present invention .
上述实施例只是本发明的较佳实施例，并不是对本发明技术方案的限制，只要是不经过创造性劳动即可在上述实施例的基础上实现的技术方案，均应视为落入本发明专利的权利保护范围内。 The above-described embodiments are only preferred embodiments of the present invention, and are not limitations to the technical solutions of the present invention. As long as they are technical solutions that can be realized on the basis of the above-mentioned embodiments without creative work, they should be regarded as falling into the scope of the patent of the present invention. within the scope of protection of rights.
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