CN211177289U - Heat pump type two-stage evaporation heat recovery fresh air handling unit - Google Patents
Heat pump type two-stage evaporation heat recovery fresh air handling unit Download PDFInfo
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- CN211177289U CN211177289U CN201922430154.5U CN201922430154U CN211177289U CN 211177289 U CN211177289 U CN 211177289U CN 201922430154 U CN201922430154 U CN 201922430154U CN 211177289 U CN211177289 U CN 211177289U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The utility model discloses a heat pump type two-stage evaporative heat recovery fresh air handling unit, which consists of an indoor exhaust processing device and an outdoor fresh air processing device, wherein the indoor exhaust processing device comprises an indoor air box, an exhaust system, a copper pipe fin type condenser, a gaseous refrigerant conversion system, a liquid refrigerant conversion system, a circulating water tank, a wet film heat recovery core, a water baffle and a spray row, and the outdoor fresh air processing device comprises an outdoor air box, a fresh air supply system, a copper pipe fin type heat exchanger, a copper pipe fin type evaporator and a circulating water pump; the unit absorbs exhaust energy in summer through two modes of spray evaporation and condensation evaporation, and performs two-stage cooling and dehumidifying treatment on fresh air through two media of water and a refrigerant; in winter, through mode switching of a refrigerant system, the exhaust heat is fully absorbed through a refrigerant evaporator on the exhaust side, and the fresh air is heated through a refrigerant heat exchanger on the fresh air side; the air-conditioner has the advantages of avoiding cross pollution of fresh air and exhaust air, recovering exhaust air energy, saving energy and protecting environment.
Description
Technical Field
The utility model particularly relates to a heat pump type doublestage evaporation heat recovery fresh air handling unit.
Background
At present, the heat recovery mode of the central air-conditioning ventilation system mainly adopts runner type heat recovery, plate-fin type heat recovery and evaporative type heat recovery.
Wherein, the theory of operation of runner formula heat recovery does: the rotating wheel is used as a heat storage core body, fresh air passes through one semicircle of the rotating wheel, simultaneously exhaust air reversely passes through the other semicircle of the rotating wheel, and the fresh air and the exhaust air alternately reversely pass through the rotating wheel in the mode; the working principle of the plate-fin heat recovery is as follows: the smooth plates are assembled to form a planar channel with a triangular, U-shaped or other combined shape in cross-section, which greatly increases the contact surface between the air and the plates. The working principle of evaporative heat recovery is as follows: the characteristic of low relative humidity of exhaust air and the working principle of the cooling tower are utilized to fully absorb the latent heat energy of the exhaust air, so that cooling water exchanges heat with fresh air through the surface air cooler, and the function of energy recovery is realized. The two modes of the rotary wheel type and the plate-fin type have certain limitations, and the recovery efficiency is limited; meanwhile, the rotary wheel type heat recovery and the plate-fin type heat recovery adopt the alternative passing of the exhaust air and the fresh air, and the cross pollution of the exhaust air and the fresh air cannot be avoided. In addition, original evaporation formula heat recovery mode does not have the sensible heat energy of make full use of airing exhaust completely, can't provide effectual winter heat recovery function simultaneously, consequently has certain limitation and promotes the space.
Disclosure of Invention
In view of this, the utility model aims at providing a heat pump type doublestage evaporation heat recovery fresh air handling unit that has the energy and energy-concerving and environment-protective of avoiding new trend, airing exhaust cross contamination, retrieving the air exhaust.
In order to solve the technical problem, the technical scheme of the utility model is that:
a heat pump type two-stage evaporative heat recovery fresh air handling unit comprises an indoor air exhaust processing device and an outdoor fresh air processing device which is installed side by side with the indoor air exhaust processing device, wherein the indoor air exhaust processing device comprises an indoor air box, an air exhaust system, a copper pipe finned condenser positioned on one side of the air exhaust system, a gaseous refrigerant conversion system and a liquid refrigerant conversion system which are connected with the copper pipe finned condenser, a circulating water tank positioned on one side of the gaseous refrigerant conversion system and the liquid refrigerant conversion system, a wet film heat recovery core body installed above the circulating water tank, a water baffle installed above the wet film heat recovery core body, and a spray row which is installed between the wet film heat recovery core body and the water baffle body and discharges water towards the direction of the wet film heat recovery core body, the outdoor fresh air processing device comprises an outdoor air box and an air supply system installed at the upper end of the outdoor air box, the device comprises a copper pipe fin heat exchanger and a copper pipe fin evaporator which are arranged at the lower end of an outdoor air box and are vertically arranged in parallel, and a circulating water pump arranged at the lower end of the outdoor air box, wherein one end of the circulating water pump is communicated with the copper pipe fin heat exchanger, the other end of the circulating water pump extends into a circulating water pool, and the copper pipe fin evaporator is fixedly communicated with a spray row.
Preferably, the indoor air box comprises an indoor upper box body for installing the exhaust system and the copper tube finned condenser, and an indoor lower box body for installing the gaseous refrigerant conversion system and the liquid refrigerant conversion system.
Preferably, an air supply valve for supplying fresh air for heat dissipation to the interior of the indoor upper box body, an air supply filter mounted above the air supply valve, and an exhaust bypass air valve mounted above the indoor upper box body and located in the indoor lower box body are further arranged above the indoor upper box body.
Preferably, an exhaust filter is installed at an outer side of the indoor lower case.
Preferably, the exhaust system comprises an exhaust fan supported by a bracket and an exhaust duct arranged on the exhaust fan and extending out of the indoor air box.
Preferably, the gaseous refrigerant conversion system comprises a compressor, a gas-liquid separator and a four-way reversing valve which are fixedly communicated in sequence through pipelines, the pipeline at one end of the compressor is communicated with the copper tube fin type condenser, and the pipeline at one end of the four-way reversing valve is communicated with the copper tube fin type evaporator.
Preferably, the liquid refrigerant conversion system comprises a one-way valve, a drying filter and a throttle valve which are fixedly communicated in sequence through pipelines, the pipeline at one end of the one-way valve is communicated with the copper tube fin type condenser, and the pipeline at one end of the throttle valve is communicated with the copper tube fin type heat exchanger.
Preferably, a fresh air filter is installed on the outer side of the outdoor air box.
Preferably, the fresh air supply system comprises a blower supported by a bracket and an air supply pipe which is arranged on the blower and extends out of the outdoor air box.
The utility model discloses technical effect mainly embodies in following aspect: in summer, the exhaust energy can be fully absorbed through two modes of spray evaporation and condensation evaporation, and the fresh air is subjected to two-stage cooling and dehumidifying treatment through two media of water and a refrigerant; in winter, through mode switching of a refrigerant system, the exhaust heat is fully absorbed through a refrigerant evaporator on the exhaust side, and the fresh air is heated through a refrigerant heat exchanger on the fresh air side; the energy-saving fresh air processing unit can recover the air exhaust energy to the maximum extent and reduce the load of the fresh air conditioner while completely avoiding the cross pollution of fresh air and air exhaust.
Drawings
Fig. 1 is a front view of a heat pump type two-stage evaporation heat recovery fresh air handling unit according to the present invention;
fig. 2 is a structural diagram of a gaseous refrigerant conversion system and a liquid refrigerant conversion system in fig. 1.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.
Examples
A heat pump type two-stage evaporation heat recovery fresh air handling unit is shown in figure 1 and comprises an indoor air exhaust processing device 1 and an outdoor fresh air processing device 2 which is arranged side by side with the indoor air exhaust processing device 1, wherein the indoor air exhaust processing device 1 comprises an indoor air box 11, an air exhaust system 12, a copper pipe finned condenser 13 which is arranged at one side of the air exhaust system 12, a gaseous refrigerant conversion system 14 and a liquid refrigerant conversion system 15 which are connected with the copper pipe finned condenser 13, a circulating water tank 16 which is arranged at one side of the gaseous refrigerant conversion system 14 and the liquid refrigerant conversion system 15, a wet film heat recovery core body 17 which is arranged above the circulating water tank 16, a water baffle 18 which is arranged above the wet film heat recovery core body 17, and a spray exhaust row 19 which is arranged between the wet film heat recovery core body 17 and the water baffle 18 and discharges water towards the wet film heat recovery core body 17, the indoor air box 11 comprises an indoor upper box body 111 for installing the exhaust system 12 and the copper tube fin type condenser 13, and an indoor lower box body 112 for installing the gaseous refrigerant conversion system 14 and the liquid refrigerant conversion system 15. An air supply valve 1111 for supplying heat dissipation fresh air to the interior of the indoor upper box body 111, an air supply filter 1112 arranged above the air supply valve 1111, and an exhaust bypass air valve 113 arranged above the indoor upper box body 111 and positioned in the interior of the indoor lower box body 112 are further arranged above the indoor upper box body 111. An air discharge filter 1121 is installed at an outer side of the indoor lower case 112, so that indoor air is filtered by the air discharge filter 1121 and then enters the indoor lower case 112. The exhaust system 12 includes a bracket-supported exhaust fan 121, and an exhaust duct 122 installed on the exhaust fan 121 and extending outside the indoor air box 11.
Outdoor new trend processing apparatus 2 includes outdoor bellows 21, installs fresh air supply system 22 of outdoor bellows 21 upper end is installed copper pipe fin heat exchanger 23 and copper pipe fin evaporator 24 that outdoor bellows 21 lower extreme and the perpendicular installation side by side, and install circulating water pump 25 of outdoor bellows 21 lower extreme, circulating water pump 25's one end intercommunication copper pipe fin heat exchanger 23, the other end extend to in the circulating water pond 16, conveniently extract the water in the circulating water pond 16 and carry out cyclic utilization, copper pipe fin evaporator 24 and the fixed intercommunication of row of spraying 19. The outside of outdoor bellows 21 is installed new trend filter 211 for outside air gets into inside outdoor bellows 21 after passing through new trend filter 211 and filtering. The fresh air blowing system 22 includes a blower 221 supported by a bracket, and a blowing pipe 122 mounted on the blower 221 and extending outside the outdoor air box 21.
As shown in fig. 2, the gaseous refrigerant conversion system 14 includes a compressor 141, a gas-liquid separator 142, and a four-way reversing valve 143, which are sequentially and fixedly communicated with each other through a pipeline, the pipeline at one end of the compressor 141 is communicated with the copper tube fin type condenser 13, and the pipeline at one end of the four-way reversing valve 143 is communicated with the copper tube fin type evaporator 24. The liquid refrigerant conversion system 15 comprises a check valve 151, a drying filter 152 and a throttle valve 153 which are fixedly communicated in sequence through pipelines, the pipeline at one end of the check valve 151 is communicated with the copper tube fin type condenser 13, and the pipeline at one end of the throttle valve 153 is communicated with the copper tube fin type heat exchanger 23.
Principle of operation
With reference to fig. 1-2, after the device is started and operated, the exhaust bypass air valve 113 and the air supply valve 1111 are closed, the exhaust fan 121 is opened, indoor exhaust air enters the indoor lower box 112 through the exhaust filter 1121, the circulating water pump 25 is opened at the same time, the spray row 19 sprays circulating water from the wet film heat recovery core 17, when the exhaust air passes through the wet film heat recovery core 17, because the relative humidity of the indoor exhaust air is low and the temperature of wet balls is not saturated, moisture in the wet film is evaporated and taken away by the exhaust air, because the moisture in the wet film heat recovery core 17 is evaporated, heat in the sprayed water is taken away, the sprayed water is cooled and dropped into the circulating water tank 16, and when the exhaust air absorbing water vapor gradually reaches a saturated state and passes through the water baffle 18, fine water drops taken away by the exhaust air are separated by the water baffle 18 and dropped into the wet film heat recovery core 17 again; the temperature of the exhaust dry bulb with saturated humidity is not changed and is equal to the room temperature, and when the exhaust dry bulb passes through the copper tube finned condenser 13, the exhaust dry bulb exchanges heat with high-temperature and high-pressure gas discharged by the compressor 141, and the high-temperature and high-pressure gas refrigerant is condensed into high-temperature and high-pressure liquid; the temperature of the exhaust air rises due to the condensation heat brought away; high-temperature exhaust air is exhausted to the outside through the exhaust system 12, and when the exhaust air is insufficient in heat dissipation, the air supply valve 1111 is opened; the water cooled in the circulating water tank 16 is directly pumped into the copper tube fin heat exchanger 23 by the circulating water pump 25, after the air supply motor 221 is started, the fresh air enters the outdoor air box 21 through the fresh air filter 211, the fresh air in the box channel passes through the copper tube fin heat exchanger 23, the fresh air can exchange heat with low-temperature circulating water in the copper tube fin heat exchanger 23, the fresh air passes through the copper tube fin evaporator 24 after being cooled, the temperature of the water of the copper tube fin heat exchanger 23 rises after absorbing the heat of the fresh air, and the water enters the spray row 19 and is sprayed onto the wet film heat recovery core body 17 to form complete circulation.
Refrigeration cycle mode: after the heat pump refrigeration mode is started to operate, the high-temperature and high-pressure liquid refrigerant flowing out of the copper tube fin type condenser 13 in the indoor exhaust air processing device 1 is converted into low-temperature and low-pressure liquid refrigerant through the one-way valve 151, the drying filter 152 and the throttle valve 153, enters the copper tube fin type evaporator 24, and further exchanges heat with fresh air precooled by the copper tube fin type heat exchanger 23, so that the fresh air is further cooled and dehumidified, and the cooled and dehumidified fresh air is sent to the indoor through the fresh air supply system 22; the low-temperature low-pressure liquid refrigerant changes into a low-temperature low-pressure gaseous refrigerant through absorbing the heat of the precooled fresh air, returns to the compressor 141 through the four-way reversing valve 143 and the gas-liquid separator 142, changes into a high-temperature high-pressure gaseous refrigerant through the compression of the compressor 141, and enters the copper tube fin condenser 13 to form a complete refrigeration cycle mode.
Heating cycle mode: after the heat pump heating mode is started to operate, the four-way reversing valve 143 is switched on, the copper tube fin type evaporator 24 is converted into a condenser, and the copper tube fin type condenser 13 is converted into an evaporator. The high-temperature high-pressure liquid refrigerant flowing out of the copper tube fin evaporator 24 (serving as a condenser at this time) in the outdoor fresh air processing device 2 is converted into the low-temperature low-pressure liquid refrigerant through the check valve 151, the drying filter 152 and the throttle valve 153, enters the copper tube fin condenser 13 (serving as an evaporator at this time), further exchanges heat with exhaust air, is converted into the low-temperature low-pressure gaseous refrigerant after evaporation and heat absorption, returns to the compressor 141 through the four-way reversing valve 143 and the gas-liquid separator 142, and enters the copper tube fin evaporator 24 (serving as a condenser at this time) after being compressed by the compressor 141 to form a complete heating circulation mode.
The utility model discloses technical effect mainly embodies in following aspect: in summer, the exhaust energy can be fully absorbed through two modes of spray evaporation and condensation evaporation, and the fresh air is subjected to two-stage cooling and dehumidifying treatment through two media of water and a refrigerant; in winter, through mode switching of a refrigerant system, the exhaust heat is fully absorbed through a refrigerant evaporator on the exhaust side, and the fresh air is heated through a refrigerant heat exchanger on the fresh air side; the energy-saving fresh air processing unit can recover the air exhaust energy to the maximum extent and reduce the load of the fresh air conditioner while completely avoiding the cross pollution of fresh air and air exhaust.
Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.
Claims (9)
1. The utility model provides a heat pump type doublestage evaporation heat recovery fresh air handling unit which characterized in that: the indoor air exhaust treatment device comprises an indoor air box, an air exhaust system, a copper pipe fin type condenser positioned on one side of the air exhaust system, a gaseous refrigerant conversion system and a liquid refrigerant conversion system which are connected with the copper pipe fin type condenser, a circulating water tank positioned on one side of the gaseous refrigerant conversion system and the liquid refrigerant conversion system, a wet film heat recovery core body arranged above the circulating water tank, a water baffle plate arranged above the wet film heat recovery core body, and a spray row which is arranged between the wet film heat recovery core body and the water baffle plate and discharges water towards the direction of the wet film heat recovery core body, wherein the outdoor air treatment device comprises an outdoor air box, a fresh air supply system arranged at the upper end of the outdoor air box, a fresh air supply system arranged at the lower end of the outdoor air box, a spray pipe arranged at the lower end of the outdoor air box, and a spray pipe, The device comprises a copper pipe fin heat exchanger, a copper pipe fin evaporator and a circulating water pump, wherein the copper pipe fin heat exchanger and the copper pipe fin evaporator are vertically arranged in parallel, the circulating water pump is arranged at the lower end of an outdoor air box, one end of the circulating water pump is communicated with the copper pipe fin heat exchanger, the other end of the circulating water pump extends into a circulating water tank, and the copper pipe fin evaporator is fixedly communicated with a spray row.
2. The heat pump type dual-stage evaporation heat recovery fresh air handling unit of claim 1, wherein: the indoor air box comprises an indoor upper box body used for installing an exhaust system and a copper tube finned condenser, and an indoor lower box body used for installing a gaseous refrigerant conversion system and a liquid refrigerant conversion system.
3. The heat pump type dual-stage evaporation heat recovery fresh air handling unit of claim 2, wherein: an air supplementing valve used for supplementing heat dissipation fresh air to the interior of the indoor upper box body, an air supplementing filter arranged above the air supplementing valve, and an air exhaust bypass air valve arranged above the indoor upper box body and located in the indoor lower box body are further arranged above the indoor upper box body.
4. The heat pump type dual-stage evaporation heat recovery fresh air handling unit of claim 2, wherein: and an exhaust filter is arranged on the outer side of the indoor lower box body.
5. The heat pump type dual-stage evaporation heat recovery fresh air handling unit of claim 1, wherein: the exhaust system comprises an exhaust fan supported by a bracket and an exhaust pipe which is arranged on the exhaust fan and extends out of the indoor air box.
6. The heat pump type dual-stage evaporation heat recovery fresh air handling unit of claim 1, wherein: the gaseous refrigerant conversion system comprises a compressor, a gas-liquid separator and a four-way reversing valve which are sequentially and fixedly communicated through pipelines, the pipeline at one end of the compressor is communicated with the copper tube fin type condenser, and the pipeline at one end of the four-way reversing valve is communicated with the copper tube fin type evaporator.
7. The heat pump type dual-stage evaporation heat recovery fresh air handling unit of claim 1, wherein: the liquid refrigerant conversion system comprises a check valve, a drying filter and a throttle valve which are fixedly communicated in sequence through pipelines, the pipeline at one end of the check valve is communicated with the copper tube fin type condenser, and the pipeline at one end of the throttle valve is communicated with the copper tube fin type heat exchanger.
8. The heat pump type dual-stage evaporation heat recovery fresh air handling unit of claim 1, wherein: and a fresh air filter is arranged on the outer side of the outdoor air box.
9. The heat pump type dual-stage evaporation heat recovery fresh air handling unit of claim 1, wherein: the fresh air supply system comprises an air feeder supported by a bracket and an air supply pipe which is arranged on the air feeder and extends out of the outdoor air box.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922430154.5U CN211177289U (en) | 2019-12-27 | 2019-12-27 | Heat pump type two-stage evaporation heat recovery fresh air handling unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922430154.5U CN211177289U (en) | 2019-12-27 | 2019-12-27 | Heat pump type two-stage evaporation heat recovery fresh air handling unit |
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| CN211177289U true CN211177289U (en) | 2020-08-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566325A (en) * | 2021-07-07 | 2021-10-29 | 深圳市缔息云联科技有限公司 | Two-stage evaporation cooling heat dissipation tower |
| CN115435425A (en) * | 2022-11-08 | 2022-12-06 | 苏州恒境环保科技有限公司 | Plane plate type heat recovery ventilation device |
| CN117663262A (en) * | 2023-11-24 | 2024-03-08 | 广州国灵空调有限公司 | Modularized multi-cold-source cascade energy recovery fresh air exhaust treatment unit |
| CN118102666A (en) * | 2024-01-26 | 2024-05-28 | 广东省建筑设计研究院有限公司 | Evaporative energy recovery unit without cross air pollution during fresh air exhaust |
-
2019
- 2019-12-27 CN CN201922430154.5U patent/CN211177289U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566325A (en) * | 2021-07-07 | 2021-10-29 | 深圳市缔息云联科技有限公司 | Two-stage evaporation cooling heat dissipation tower |
| CN115435425A (en) * | 2022-11-08 | 2022-12-06 | 苏州恒境环保科技有限公司 | Plane plate type heat recovery ventilation device |
| CN117663262A (en) * | 2023-11-24 | 2024-03-08 | 广州国灵空调有限公司 | Modularized multi-cold-source cascade energy recovery fresh air exhaust treatment unit |
| CN117663262B (en) * | 2023-11-24 | 2024-07-12 | 广州国灵空调有限公司 | Modularized multi-cold-source cascade energy recovery fresh air exhaust treatment unit |
| CN118102666A (en) * | 2024-01-26 | 2024-05-28 | 广东省建筑设计研究院有限公司 | Evaporative energy recovery unit without cross air pollution during fresh air exhaust |
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