CN107314483B - Two-stage double-dehumidification-evaporator double-dehumidification-condenser dehumidification heat pump system and method - Google Patents
Two-stage double-dehumidification-evaporator double-dehumidification-condenser dehumidification heat pump system and method Download PDFInfo
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 233
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000003507 refrigerant Substances 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 230000008929 regeneration Effects 0.000 claims description 30
- 238000011069 regeneration method Methods 0.000 claims description 30
- 239000002274 desiccant Substances 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 10
- 230000001172 regenerating effect Effects 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims 16
- 238000009833 condensation Methods 0.000 abstract description 11
- 230000005494 condensation Effects 0.000 abstract description 11
- 238000001704 evaporation Methods 0.000 abstract description 11
- 230000008020 evaporation Effects 0.000 abstract description 10
- 230000008859 change Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000013332 literature search Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
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- 239000002918 waste heat Substances 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
- 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
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B39/00—Evaporators; Condensers
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
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Abstract
The invention provides a two-stage double-dehumidification evaporator double-dehumidification condenser dehumidification heat pump system, which comprises a closed refrigerant system; the closed refrigerant system comprises a low-temperature side compressor, a four-way reversing valve, a first low-temperature side dehumidifying heat exchanger, a second low-temperature side dehumidifying heat exchanger, a low-temperature side throttling device, a high-temperature side compressor, a first three-way reversing valve, a second three-way reversing valve, a high-temperature side throttling device, a first high-temperature side dehumidifying heat exchanger and a second high-temperature side dehumidifying heat exchanger. The invention also provides a two-stage double-dehumidification cooling and heating method. In the invention, two dehumidification evaporators/condensers which are connected in parallel at different evaporation/condensation temperatures are adopted, and the processing air sequentially flows through the dehumidification evaporators at high temperature and low temperature. Compared with the prior art, the invention prolongs the cycle switching time, improves the reliability and the economy, and can change the multi-mode operation.
Description
Technical Field
The invention relates to a system in the technical field of solid dehumidification air-conditioning heat pumps, in particular to a two-stage double-dehumidification evaporator double-dehumidification condenser dehumidification heat pump system.
Background
The decoupling type solid dehumidifying air-conditioning technology adopts a drying agent to treat latent heat load in air, sensible heat load is treated by a natural cold source or a traditional compression type refrigerating system, the system realizes the separate treatment and independent control of the sensible heat load and the latent heat load, and the limitation of centralized treatment of the compression type air-conditioning technology is overcome. However, the heat of adsorption released by the dehumidification material in the solid dehumidification process not only increases the sensible heat load to be processed subsequently, but also causes the regeneration temperature of the desiccant to rise. The method is characterized in that chilled water generated by regenerative evaporative cooling is introduced into a dehumidification heat exchanger based on circulation of the dehumidification heat exchanger cooled in the evaporative cooling, and sensible heat load and adsorption heat are processed through chilled water in a pipe. However, the cooling limit of such systems is the outdoor air wet bulb temperature, and the systems have limited ability to handle sensible heat loads. The dehumidification heat exchanger based on refrigerant cooling circularly adopts a dehumidification evaporation/condenser coated with a desiccant material to replace an evaporation/condenser in the traditional compression type cycle, reduces the temperature of an internal cooling source and the adsorption temperature of the desiccant through refrigerant evaporation, and improves the heat and humidity load processing capacity. However, when the desiccant on the surface of the dehumidification evaporator is saturated, the low-temperature internal cold source can cause the problem of surface condensation of the dehumidification evaporator, and the generated liquid water can generate great adverse effects on the physical properties of the coated desiccant and subsequent regeneration, so that the overall cycle performance is unstable and reduced.
Through the published literature search of the prior art, in order to solve the above problems, the Comfortable, high-efficiency heat pump with condensed-coated, water-absorbing heat exchangers (2017,7,40437) published by y.d. tu et al in scientific reports can avoid the generation of condensation by controlling the switching time of evaporation dehumidification and condensation regeneration, however, frequent switching can lead to the overall cycle thermodynamic performance being in cold-hot dynamic alternation all the time, and the thermal resistance of the large heat capacity metal base leads to the reduction of the adsorption and desorption capacity of the desiccant, thereby causing the overall cycle performance to be reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a dehumidification heat pump system and a dehumidification heat pump method for a two-stage double-dehumidification evaporator double-dehumidification condenser.
The invention provides a two-stage double-dehumidification evaporator and double-dehumidification condenser dehumidification heat pump system, which comprises a closed refrigerant system;
the closed refrigerant system comprises a low-temperature side compressor, a four-way reversing valve, a first low-temperature side dehumidifying heat exchanger, a second low-temperature side dehumidifying heat exchanger, a low-temperature side throttling device, a high-temperature side compressor, a first three-way reversing valve, a second three-way reversing valve, a high-temperature side throttling device, a first high-temperature side dehumidifying heat exchanger and a second high-temperature side dehumidifying heat exchanger;
the refrigerant vapor coming out of the low temperature side compressor is divided into various paths:
one path is a flow port opening of a first flow channel of a low-temperature side dehumidification heat exchanger, wherein the outlet of the low-temperature side compressor is connected to the first flow channel of one low-temperature dehumidification heat exchanger of a first low-temperature side dehumidification heat exchanger and a second low-temperature side dehumidification heat exchanger through a first flow channel of a four-way reversing valve;
the other flow passage port of the first flow passage of one of the first low-temperature side dehumidifying heat exchanger and the second low-temperature side dehumidifying heat exchanger is connected to the flow passage port of the first flow passage of the other one of the first low-temperature side dehumidifying heat exchanger and the second low-temperature side dehumidifying heat exchanger through a low-temperature side throttling device;
the other flow passage of the first flow passage of the other low-temperature dehumidification heat exchanger in the first low-temperature side dehumidification heat exchanger and the second low-temperature side dehumidification heat exchanger flows back to the low-temperature side compressor through the second flow passage of the four-way reversing valve;
the other path is a flow channel opening of a first flow channel of one high-temperature dehumidification heat exchanger in the first high-temperature dehumidification heat exchanger and the second high-temperature dehumidification heat exchanger, which is connected to the outlet of the low-temperature compressor through a flow channel of one three-way reversing valve in the high-temperature compressor, the first three-way reversing valve and the second three-way reversing valve;
the other flow passage opening of the first flow passage of one of the first high-temperature side dehumidifying heat exchanger and the second high-temperature side dehumidifying heat exchanger is connected with the flow passage opening of the first flow passage of the other one of the first high-temperature side dehumidifying heat exchanger and the second high-temperature side dehumidifying heat exchanger through a high-temperature side throttling device;
and the other flow passage of the first flow passage of the other high-temperature dehumidification heat exchanger in the first high-temperature side dehumidification heat exchanger and the second high-temperature side dehumidification heat exchanger flows back to the low-temperature side compressor through the flow passage of the other three-way reversing valve in the first three-way reversing valve and the second flow passage of the four-way reversing valve.
Preferably, the two-stage double dehumidification evaporator double dehumidification condenser dehumidification heat pump system comprises a first mode and a second mode;
in a first mode:
the steam path is a flow port of which the outlet of the low-temperature side compressor is connected to the first flow channel of the second low-temperature side dehumidifying heat exchanger through the first flow channel of the four-way reversing valve;
the other flow passage opening of the first flow passage of the second low-temperature side dehumidification heat exchanger is connected to the flow passage opening of the first flow passage of the first low-temperature side dehumidification heat exchanger through a low-temperature side throttling device;
the other flow passage of the first low-temperature side dehumidification heat exchanger flows back to the low-temperature side compressor through the second flow passage of the four-way reversing valve;
the other path is a flow channel opening of the outlet of the low-temperature side compressor, which is connected to the first flow channel of the second high-temperature side dehumidification heat exchanger through the high-temperature side compressor and the flow channel of the first three-way reversing valve;
the other runner port of the first runner of the second high-temperature side dehumidification heat exchanger is connected with the runner port of the first runner of the first high-temperature side dehumidification heat exchanger through a high-temperature side throttling device;
the other flow passage of the first high-temperature side dehumidification heat exchanger flows back to the low-temperature side compressor through the flow passage of the second three-way reversing valve and the second flow passage of the four-way reversing valve;
in a second mode:
the steam path is a flow port of which the outlet of the low-temperature side compressor is connected to the first flow channel of the first low-temperature side dehumidifying heat exchanger through the first flow channel of the four-way reversing valve;
the other flow passage opening of the first flow passage of the first low-temperature side dehumidification heat exchanger is connected to the flow passage opening of the first flow passage of the second low-temperature side dehumidification heat exchanger through a low-temperature side throttling device;
the other flow passage of the first flow passage of the second low-temperature side dehumidification heat exchanger flows back to the low-temperature side compressor through the second flow passage of the four-way reversing valve;
the other path is a flow channel opening of the outlet of the low-temperature side compressor, which is connected to the first flow channel of the first high-temperature side dehumidification heat exchanger through the high-temperature side compressor and the flow channel of the second three-way reversing valve;
the other flow passage opening of the first flow passage of the first high-temperature side dehumidification heat exchanger is connected to the flow passage opening of the first flow passage of the second high-temperature side dehumidification heat exchanger through a high-temperature side throttling device;
the other flow passage of the first flow passage of the second high-temperature side dehumidification heat exchanger flows back to the low-temperature side compressor through the flow passage of the first three-way reversing valve and the second flow passage of the four-way reversing valve;
the first mode and the second mode are switched.
Preferably, in the first mode:
the outlet of the low-temperature side compressor is connected with a first flow passage port of the four-way reversing valve;
the first flow port of the four-way reversing valve is connected with the second flow port;
the second flow port of the four-way reversing valve is connected to the second flow port of the second low-temperature side dehumidification heat exchanger;
a first flow channel opening of the second low-temperature side dehumidification heat exchanger is connected with an inlet of the low-temperature side throttling device;
the outlet of the low-temperature side throttling device is connected to the second runner opening of the first low-temperature side dehumidification heat exchanger;
a first flow passage port of the first low-temperature side dehumidification heat exchanger is connected with a fourth flow passage port of the four-way reversing valve;
the fourth flow port of the four-way reversing valve is connected with the third flow port;
the third flow passage of the four-way reversing valve is connected with the inlet of the low-temperature side compressor;
the other path is that the outlet of the low-temperature side compressor is connected with the inlet of the high-temperature side compressor;
the outlet of the high-temperature side compressor is connected with the second flow passage of the first three-way reversing valve;
the second flow port of the first three-way reversing valve is connected with the first flow port;
a first flow passage of the first three-way reversing valve is connected with a second flow passage of the second high-temperature side dehumidification heat exchanger;
a first flow channel opening of the second high-temperature side dehumidification heat exchanger is connected with an inlet of the high-temperature side throttling device;
the outlet of the high-temperature side throttling device is connected with the second flow passage of the first high-temperature side dehumidification heat exchanger;
a first flow passage of the first high-temperature side dehumidification heat exchanger is connected with a first flow passage of the second three-way reversing valve;
a first flow port of the second three-way reversing valve is connected with a second flow port;
a second flow passage port of the second three-way reversing valve is connected with a fourth flow passage port of the four-way reversing valve;
the third flow passage of the four-way reversing valve is connected with the inlet of the low-temperature side compressor;
preferably, in the second mode:
the outlet of the low-temperature side compressor is connected with a first flow passage port of the four-way reversing valve;
the first flow passage port and the fourth flow passage port of the four-way reversing valve are connected;
a fourth flow passage port of the four-way reversing valve is connected to a first flow passage port of the first low-temperature side dehumidification heat exchanger;
a second runner opening of the first low-temperature side dehumidification heat exchanger is connected with an inlet of the low-temperature side throttling device;
the outlet of the low-temperature side throttling device is connected with the first flow passage of the second low-temperature side dehumidification heat exchanger;
a second flow port of the second low-temperature side dehumidification heat exchanger is connected with a second flow port of the four-way reversing valve;
the second flow port of the four-way reversing valve is connected with the third flow port;
the third flow passage of the four-way reversing valve is connected with the inlet of the low-temperature side compressor;
the other path is that the outlet of the low-temperature side compressor is connected with the inlet of the high-temperature side compressor;
the outlet of the high-temperature side compressor is connected with the third flow passage port of the second three-way reversing valve;
a third flow passage of the second three-way reversing valve is connected with the first flow passage;
a first flow passage of the second three-way reversing valve is connected to a first flow passage of the first high-temperature side dehumidification heat exchanger;
a second runner opening of the first high-temperature side dehumidification heat exchanger is connected with an inlet of the high-temperature side throttling device;
the outlet of the high-temperature side throttling device is connected to the first flow channel opening of the second high-temperature side dehumidification heat exchanger;
a second flow port of the second high-temperature side dehumidification heat exchanger is connected with a first flow port of the first three-way reversing valve;
a first flow passage of the first three-way reversing valve is connected with a third flow passage;
the third flow port of the first three-way reversing valve is connected with the second flow port of the four-way reversing valve;
and a third flow passage of the four-way reversing valve is connected with an inlet of the low-temperature side compressor.
Preferably, the system further comprises a first air system to be treated and a first regeneration air system.
Preferably, a second air-to-be-treated system and a second regeneration air system are also included.
Preferably, the first air system to be treated comprises a first fan, a first air duct and an air supply outlet;
the first regenerative air system comprises a second fan and a second air duct;
the connection mode of the first air system to be treated and the first regeneration air system is respectively as follows:
first air system to be treated: an outlet of the first fan is connected with a third flow passage opening of the first high-temperature side dehumidification heat exchanger through a first air passage;
a fourth flow passage of the first high-temperature side dehumidifying heat exchanger is connected with a third flow passage of the first low-temperature side dehumidifying heat exchanger;
a fourth runner port of the first low-temperature side dehumidification heat exchanger is connected with the air supply port;
first regeneration air: a third flow passage port of the second low-temperature side dehumidifying heat exchanger is connected with a fourth flow passage port of the second high-temperature side dehumidifying heat exchanger;
and a third flow passage opening of the second high-temperature side dehumidification heat exchanger is connected with an inlet of the second fan.
Preferably, the second air system to be treated comprises a second fan, a second air duct and an air supply outlet;
the second regenerative air system comprises a first air duct and a first fan;
the connection mode of the second air system to be treated and the second regeneration air system is respectively as follows:
a second air-to-be-treated system: the air supply outlet is connected with a fourth runner port of the second low-temperature side dehumidification heat exchanger through a second air duct;
a third flow passage port of the second low-temperature side dehumidifying heat exchanger is connected with a fourth flow passage port of the second high-temperature side dehumidifying heat exchanger;
a third flow passage opening of the second high-temperature side dehumidification heat exchanger is connected with an outlet of the second fan;
a second regeneration air system: the third flow passage of the first low-temperature side dehumidifying heat exchanger is connected with the fourth flow passage of the first high-temperature side dehumidifying heat exchanger;
and a third flow passage of the first high-temperature side dehumidification heat exchanger is connected with an inlet of the first fan through a first air duct.
Preferably, the first high temperature side dehumidification heat exchanger, the first low temperature side dehumidification heat exchanger, and the second flow port are cold flow channel ports, and the third flow port and the fourth flow port are hot flow channel ports; the first runner opening and the second runner opening of the second high-temperature side dehumidifying heat exchanger and the second low-temperature side dehumidifying heat exchanger are runner openings of a heat flow channel, and the third runner opening and the fourth runner opening are runner openings of a cold flow channel. Or the first flow port and the second flow port of the first high-temperature side dehumidifying heat exchanger and the first low-temperature side dehumidifying heat exchanger are flow port ports of a heat flow channel, and the third flow port and the fourth flow port are flow port ports of a cold flow channel; the first runner port and the second runner port of the second high-temperature side dehumidifying heat exchanger and the second low-temperature side dehumidifying heat exchanger are runner ports of a cold runner passage, and the third runner port and the fourth runner port are runner ports of a hot runner passage.
The invention also provides a two-stage double-dehumidification cooling and heating method, which comprises the step of carrying out dehumidification cooling and heating on air by using the two-stage double-dehumidification evaporator double-dehumidification condenser dehumidification heat pump system.
Compared with the prior art, the invention has the following beneficial effects:
1. the high temperature dehumidification evaporimeter adopts the even drier of adsorption rate to realize heat moisture load preliminary treatment, prevents self condensation through high evaporating temperature, reduces the air dew point that gets into the low temperature dehumidification evaporimeter simultaneously and prevents the condensation, and the low temperature dehumidification evaporimeter then adopts the high drier of adsorption capacity to realize heat moisture load high efficiency and handles, and the switching time of circulation can prolong.
2. The high-pressure stage of the circulation adopts two-stage compression, the pressure ratio of each stage is moderate, the circulation COP is improved compared with the single low evaporation temperature circulation, the power consumption of the compressor can be further reduced through intermediate cooling, and the reliability and the economical efficiency are improved.
3. The cycle can achieve a mix of different sensible and latent heat load handling capacities by varying the air flow through the low temperature dehumidification evaporator or varying the refrigerant flow through the high temperature side compressor, with a greater load handling range than a cycle using only one dehumidification evaporator/condenser.
4. The two dehumidification evaporators/condensers which are connected in parallel at different evaporation/condensation temperatures are adopted in the cycle, the treated air sequentially flows through the high-temperature dehumidification evaporators and the low-temperature dehumidification evaporators, and the two-stage double-dehumidification-evaporator double-dehumidification-condenser dehumidification heat pump cycle is a brand new thermodynamic cycle.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic diagram of a first mode of the present invention.
Fig. 2 is a schematic diagram of a second mode of the present invention.
Shown in the figure:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
In the invention, two dehumidification evaporators/condensers which are connected in parallel at different evaporation/condensation temperatures are adopted, and the processing air sequentially flows through the dehumidification evaporators at high temperature and low temperature. The high-temperature dehumidification evaporator emphasizes the adoption of a drying agent with uniform adsorption speed to realize heat and humidity load pretreatment, self condensation is prevented through high evaporation temperature, air dew point entering the low-temperature dehumidification evaporator is reduced to prevent condensation, the low-temperature dehumidification evaporator emphasizes the adoption of a drying agent with high adsorption capacity to realize heat and humidity load high-efficiency treatment, the high-low dehumidification condenser is respectively matched with the high-low evaporation side to realize drying agent desorption regeneration through condensation waste heat, and continuous heat and humidity load treatment can be realized through the switching of a four-way reversing valve, two three-way reversing valves and an air channel. Compared with the prior art, the invention prolongs the cycle switching time, improves the reliability and the economy, and can change the multi-mode operation according to the characteristics of the heat and humidity load.
The invention provides a two-stage double-dehumidification evaporator and double-dehumidification condenser dehumidification heat pump system, which comprises a closed refrigerant system; the closed refrigerant system comprises a low-temperature side compressor 10, a four-way reversing valve 11, a first low-temperature side dehumidifying heat exchanger 4, a second low-temperature side dehumidifying heat exchanger 7, a low-temperature side throttling device 12, a high-temperature side compressor 13, a first three-way reversing valve 14, a second three-way reversing valve 16, a high-temperature side throttling device 15, a first high-temperature side dehumidifying heat exchanger 3 and a second high-temperature side dehumidifying heat exchanger 8.
The refrigerant vapor coming out of the low temperature side compressor 10 is divided into various paths: one path is a flow port of the outlet of the low-temperature side compressor 10 connected to the first flow channel of one of the first low-temperature side dehumidifying heat exchanger 4 and the second low-temperature side dehumidifying heat exchanger 7 through the first flow channel of the four-way reversing valve 11; the other flow port of the first flow channel of one of the first and second low-temperature side dehumidifying heat exchangers 4 and 7 is connected to the flow port of the first flow channel of the other of the first and second low-temperature side dehumidifying heat exchangers 4 and 7 via a low-temperature side throttling device 12; the other flow port of the first flow passage of the other low-temperature dehumidification heat exchanger of the first low-temperature side dehumidification heat exchanger 4 and the second low-temperature side dehumidification heat exchanger 7 flows back to the low-temperature side compressor 10 through the second flow passage of the four-way reversing valve 11; the other path is a flow port of the outlet of the low temperature side compressor 10 connected to the first flow channel of one high temperature dehumidification heat exchanger of the first high temperature side dehumidification heat exchanger 3 and the second high temperature side dehumidification heat exchanger 8 through the flow channel of one three-way reversing valve of the high temperature side compressor 13, the first three-way reversing valve 14 and the second three-way reversing valve 16; the other flow port of the first flow channel of one of the first high-temperature-side dehumidifying heat exchanger 3 and the second high-temperature-side dehumidifying heat exchanger 8 is connected to the flow port of the first flow channel of the other one of the first high-temperature-side dehumidifying heat exchanger 3 and the second high-temperature-side dehumidifying heat exchanger 8 through a high-temperature-side throttling device 15; the other flow path of the first flow path of the other high temperature side dehumidification heat exchanger of the first high temperature side dehumidification heat exchanger 3 and the second high temperature side dehumidification heat exchanger 8 flows back to the low temperature side compressor 10 through the flow path of the other three-way reversing valve of the first three-way reversing valve 14 and the second three-way reversing valve 16 and the second flow path of the four-way reversing valve 11.
The two-stage double-dehumidification evaporator and double-dehumidification condenser dehumidification heat pump system comprises a first mode and a second mode; in a first mode: the steam has a path that the outlet of the low-temperature side compressor 10 is connected to the flow port of the first flow channel of the second low-temperature side dehumidifying heat exchanger 7 through the first flow channel of the four-way reversing valve 11; the other flow port of the first flow passage of the second low temperature side dehumidifying heat exchanger 7 is connected to the flow port of the first flow passage of the first low temperature side dehumidifying heat exchanger 4 via the low temperature side throttling device 12; the other flow passage of the first low-temperature side dehumidification heat exchanger 4 flows back to the low-temperature side compressor 10 through the second flow passage of the four-way reversing valve 11; the other path is a flow channel opening of the outlet of the low-temperature side compressor 10 connected to the first flow channel of the second high-temperature side dehumidification heat exchanger 8 through the flow channels of the high-temperature side compressor 13 and the first three-way reversing valve 14; the other flow port of the first flow channel of the second high-temperature side dehumidification heat exchanger 8 is connected with the flow port of the first flow channel of the first high-temperature side dehumidification heat exchanger 3 through a high-temperature side throttling device 15; the other flow path of the first high temperature side dehumidification heat exchanger 3 flows back to the low temperature side compressor 10 through the flow path of the second three-way selector valve 16 and the second flow path of the four-way selector valve 11.
In the first mode: the one path is that the outlet of the low-temperature side compressor 10 is connected with the first flow passage port of the four-way reversing valve 11; the first flow port of the four-way reversing valve 11 is connected with the second flow port; a second flow port of the four-way reversing valve 11 is connected to a second flow port of the second low-temperature-side dehumidifying heat exchanger 7; the first flow channel opening of the second low-temperature side dehumidification heat exchanger 7 is connected with the inlet of the low-temperature side throttling device 12; the outlet of the low temperature side throttling device 12 is connected to the second flow port of the first low temperature side dehumidification heat exchanger 4; a first flow passage port of the first low-temperature side dehumidification heat exchanger 4 is connected with a fourth flow passage port of the four-way reversing valve 11; the fourth flow passage port of the four-way reversing valve 11 is connected with the third flow passage port; a third flow passage port of the four-way reversing valve 11 is connected with an inlet of the low-temperature side compressor 10; the other path is that the outlet of the low temperature side compressor 10 is connected to the inlet of the high temperature side compressor 13; the outlet of the high-temperature side compressor 13 is connected with the second flow passage of the first three-way reversing valve 14; the second flow port of the first three-way reversing valve 14 is connected with the first flow port; a first flow passage of the first three-way reversing valve 14 is connected with a second flow passage of the second high-temperature side dehumidification heat exchanger 8; the first flow channel port of the second high-temperature side dehumidification heat exchanger 8 is connected with the inlet of the high-temperature side throttling device 15; the outlet of the high-temperature side throttling device 15 is connected with the second flow passage of the first high-temperature side dehumidifying heat exchanger 3; a first flow passage of the first high-temperature side dehumidification heat exchanger 3 is connected with a first flow passage of the second three-way reversing valve 16; the first flow port of the second three-way reversing valve 16 is connected with the second flow port; the second flow port of the second three-way reversing valve 16 is connected with the fourth flow port of the four-way reversing valve 11; a third flow passage port of the four-way reversing valve 11 is connected with an inlet of the low-temperature side compressor 10;
specifically, as shown in fig. 1, the refrigerant side divides the refrigerant vapor from the low-temperature-side compressor 10 into two paths: one path sequentially flows through a four-way reversing valve 11, a second low-temperature side dehumidifying heat exchanger 7, a low-temperature side throttling device 12, a first low-temperature side dehumidifying heat exchanger 4 and the four-way reversing valve 11, and finally flows back to a low-temperature side compressor 10; the other path of the refrigerant flows through a high-temperature side compressor 13, a first three-way reversing valve 14, a second high-temperature side dehumidifying heat exchanger 8, a high-temperature side throttling device 15, a first high-temperature side dehumidifying heat exchanger 3, a second three-way reversing valve 16 and a four-way reversing valve 11 in sequence, and finally flows into a low-temperature side compressor 10 to form a parallel closed cycle. In the low-temperature loop, the refrigerant is compressed by the low-temperature side compressor 10, then the temperature and the pressure are increased, the refrigerant flows into the second low-temperature side dehumidifying heat exchanger 7 through the four-way reversing valve 11 to be condensed and release heat, then the refrigerant is cooled and depressurized through the low-temperature side throttling device 12 and then enters the first low-temperature side dehumidifying heat exchanger 4, the refrigerant is evaporated and absorbs heat in the first low-temperature side dehumidifying heat exchanger 4, and finally the refrigerant flows back to the low-temperature side compressor 10 through the four-way reversing valve 11. In the high-temperature loop, the refrigerant is compressed by the low-temperature side compressor 10, the temperature and the pressure are increased, then the refrigerant flows into the high-temperature side compressor 13 to further increase the pressure and the temperature, then the refrigerant flows into the second high-temperature side dehumidifying heat exchanger 8 through the first three-way reversing valve 14 to be condensed and release heat, then the refrigerant flows into the first high-temperature side dehumidifying heat exchanger 3 to be evaporated and absorb heat after being cooled and depressurized through the high-temperature side throttling device 15, and the refrigerant steam flowing out of the first high-temperature side dehumidifying heat exchanger 3 is mixed with the refrigerant steam flowing out of the first low-temperature side dehumidifying heat exchanger 4 after passing through the second three-way reversing valve 16 and then flows back to the low-temperature side.
The invention provides a two-stage double-dehumidification evaporator and double-dehumidification condenser dehumidification heat pump system which further comprises a first air system to be treated and a first regeneration air system.
The first air system to be treated comprises a first fan 1, a first air duct 2 and an air supply outlet 5; the first regeneration air system comprises a second fan 9 and a second air duct 6; the connection mode of the first air system to be treated and the first regeneration air system is respectively as follows: first air system to be treated: an outlet of the first fan 1 is connected with a third flow passage port of the first high-temperature side dehumidifying heat exchanger 3 through a first air duct 2; a fourth flow passage of the first high-temperature side dehumidifying heat exchanger 3 is connected with a third flow passage of the first low-temperature side dehumidifying heat exchanger 4; the fourth flow channel port of the first low temperature side dehumidifying heat exchanger 4 is connected to the supply air port 5. First regeneration air: a third flow passage port of the second low-temperature side dehumidifying heat exchanger 7 is connected with a fourth flow passage port of the second high-temperature side dehumidifying heat exchanger 8; the third flow passage port of the second high temperature side dehumidifying heat exchanger 8 is connected to the inlet of the second fan 9.
Specifically, as shown in fig. 1, the first air to be treated flows through a first fan 1, a first high temperature side dehumidifying heat exchanger 3, a first low temperature side dehumidifying heat exchanger 4, and an air blowing port 5 in this order. The air to be treated flows through the surface of the first high-temperature side dehumidifying heat exchanger 3 under the action of the first fan, is cooled and dehumidified, then flows through the surface of the first low-temperature side dehumidifying heat exchanger 4, is further cooled and dehumidified, and then is delivered to the conditioned space through the air supply outlet 5.
The first regeneration air flows through the second low-temperature-side dehumidifying heat exchanger 7, the second high-temperature-side dehumidifying heat exchanger 8 and the second fan 9 in sequence. The regeneration air flows through the surface of the second low-temperature side dehumidification heat exchanger 7 under the action of the second fan 9, is heated and takes away the resolved water vapor, then flows through the surface of the second high-temperature side dehumidification heat exchanger 8 to be further heated and humidified, and finally the high-temperature and high-humidity regeneration air is discharged again.
In a second mode:
the steam has a path that the outlet of the low-temperature side compressor 10 is connected to the flow port of the first flow channel of the first low-temperature side dehumidifying heat exchanger 4 through the first flow channel of the four-way reversing valve 11; the other flow port of the first flow passage of the first low temperature side dehumidifying heat exchanger 4 is connected to the flow port of the first flow passage of the second low temperature side dehumidifying heat exchanger 7 via the low temperature side throttling device 12; the other flow port of the first flow passage of the second low-temperature side dehumidification heat exchanger 7 flows back to the low-temperature side compressor 10 through the second flow passage of the four-way reversing valve 11; the other path is a flow channel opening of the outlet of the low-temperature side compressor 10 connected to the first flow channel of the first high-temperature side dehumidifying heat exchanger 3 through the flow channels of the high-temperature side compressor 13 and the second three-way reversing valve 16; the other flow port of the first flow passage of the first high temperature side dehumidifying heat exchanger 3 is connected to the flow port of the first flow passage of the second high temperature side dehumidifying heat exchanger 8 via the high temperature side throttling device 15; the other flow path of the first flow path of the second high temperature side dehumidification heat exchanger 8 flows back to the low temperature side compressor 10 through the flow path of the first three-way selector valve 14 and the second flow path of the four-way selector valve 11.
In the second mode: the one path is that the outlet of the low-temperature side compressor 10 is connected with the first flow passage port of the four-way reversing valve 11; the first flow passage port and the fourth flow passage port of the four-way reversing valve 11 are connected; the fourth flow port of the four-way reversing valve 11 is connected to the first flow port of the first low-temperature-side dehumidifying heat exchanger 4; the second runner port of the first low-temperature-side dehumidification heat exchanger 4 is connected with the inlet of the low-temperature-side throttling device 12; the outlet of the low-temperature side throttling device 12 is connected with the first flow passage of the second low-temperature side dehumidifying heat exchanger 7; a second flow port of the second low-temperature side dehumidification heat exchanger 7 is connected with a second flow port of the four-way reversing valve 11; the second flow port of the four-way reversing valve 11 is connected with the third flow port; a third flow passage port of the four-way reversing valve 11 is connected with an inlet of the low-temperature side compressor 10; the other path is that the outlet of the low temperature side compressor 10 is connected to the inlet of the high temperature side compressor 13; the outlet of the high-temperature side compressor 13 is connected with the third flow passage port of the second three-way reversing valve 16; the third flow passage of the second three-way reversing valve 16 is connected with the first flow passage; a first flow port of the second three-way selector valve 16 is connected to a first flow port of the first high temperature-side dehumidification heat exchanger 3; the second flow passage port of the first high-temperature-side dehumidifying heat exchanger 3 is connected with the inlet of the high-temperature-side throttling device 15; the outlet of the high temperature side throttling device 15 is connected to the first flow channel port of the second high temperature side dehumidifying heat exchanger 8; a second flow port of the second high-temperature side dehumidification heat exchanger 8 is connected with a first flow port of a first three-way reversing valve 14; the first flow passage of the first three-way reversing valve 14 is connected with the third flow passage; the third flow port of the first three-way reversing valve 14 is connected with the second flow port of the four-way reversing valve 11; the third flow path port of the four-way selector valve 11 is connected to the inlet of the low-temperature-side compressor 10.
Specifically, as shown in fig. 2, on the refrigerant side, the refrigerant vapor from the low-temperature-side compressor 10 is divided into two paths: one path sequentially flows through a four-way reversing valve 11, a first low-temperature side dehumidifying heat exchanger 4, a low-temperature side throttling device 12, a second low-temperature side dehumidifying heat exchanger 7 and the four-way reversing valve 11, and finally flows back to a low-temperature side compressor 10; the other path of the refrigerant flows through a high-temperature side compressor 13, a second three-way reversing valve 16, a first high-temperature side dehumidifying heat exchanger 3, a high-temperature side throttling device 15, a second high-temperature side dehumidifying heat exchanger 8, a first three-way reversing valve 14 and a four-way reversing valve 11 in sequence, and finally flows into a low-temperature side compressor 10 to form a parallel closed cycle. In the low-temperature loop, a refrigerant is compressed by a low-temperature side compressor 10, then the temperature and the pressure are increased, the refrigerant flows into a first low-temperature side dehumidifying heat exchanger 4 through a four-way reversing valve 11 to be condensed and release heat, then the refrigerant is cooled and depressurized by a low-temperature side throttling device 12 and then enters a second low-temperature side dehumidifying heat exchanger 7, the refrigerant is evaporated and absorbs heat in the second low-temperature side dehumidifying heat exchanger 7, and finally the refrigerant flows back to the low-temperature side compressor 10 through the four-way reversing valve 11. In the high-temperature loop, the refrigerant is compressed by the low-temperature side compressor 10, the temperature and the pressure are increased, then the refrigerant flows into the high-temperature side compressor 13 to further increase the pressure and the temperature, then the refrigerant flows into the first high-temperature side dehumidifying heat exchanger 3 through the second three-way reversing valve 16 to be condensed and release heat, then the refrigerant flows into the second high-temperature side dehumidifying heat exchanger 8 after being cooled and depressurized through the high-temperature side throttling device 15 to be evaporated and absorb heat, and the refrigerant vapor flowing out of the second high-temperature side dehumidifying heat exchanger 8 is mixed with the refrigerant vapor flowing out of the second low-temperature side dehumidifying heat exchanger 7 through the first three-way reversing valve 14 and then flows back to the low-temperature side compressor 10. The first mode and the second mode are switched.
The invention provides a two-stage double-dehumidification evaporator and double-dehumidification condenser dehumidification heat pump system which further comprises a second air system to be processed and a second regeneration air system. The second air system to be treated comprises a second fan 9, a second air duct 6 and an air supply outlet 5; the second regenerative air system comprises a first air duct 2 and a first fan 1; the connection mode of the second air system to be treated and the second regeneration air system is respectively as follows: a second air-to-be-treated system: the air supply outlet 5 is connected with a fourth runner port of a second low-temperature side dehumidification heat exchanger 7 through a second air duct 6; a third flow passage port of the second low-temperature side dehumidifying heat exchanger 7 is connected with a fourth flow passage port of the second high-temperature side dehumidifying heat exchanger 8; a third flow passage opening of the second high-temperature side dehumidifying heat exchanger 8 is connected with an outlet of the second fan 9; a second regeneration air system: a third flow passage port of the first low-temperature side dehumidifying heat exchanger 4 is connected with a fourth flow passage port of the first high-temperature side dehumidifying heat exchanger 3; a third flow passage of the first high-temperature-side dehumidifying heat exchanger 3 is connected with an inlet of the first fan 1 through the first air duct 2.
Specifically, as shown in fig. 2, the second air to be treated flows through the second fan 9, the second high temperature side dehumidifying heat exchanger 8, the second low temperature side dehumidifying heat exchanger 7, and the air blowing port 5 in this order. The air to be treated flows through the surface of the second high-temperature side dehumidifying heat exchanger 8 under the action of the second fan 9, is cooled and dehumidified, then flows through the surface of the second low-temperature side dehumidifying heat exchanger 7, is further cooled and dehumidified, and then is delivered to the conditioned space through the air supply outlet 5.
The second regeneration air flows through the first low-temperature side dehumidifying heat exchanger 4, the first high-temperature side dehumidifying heat exchanger 3 and the first fan 1 in sequence. The regeneration air flows through the surface of the first low-temperature side dehumidification heat exchanger 4 under the action of the first fan 1, is heated and takes away the resolved water vapor, then flows through the surface of the first high-temperature side dehumidification heat exchanger 3 to be further heated and humidified, and finally the high-temperature and high-humidity regeneration air is discharged again.
The invention also provides a two-stage double-dehumidification cooling and heating method, which comprises the step of carrying out dehumidification cooling and heating on air by using the two-stage double-dehumidification evaporator double-dehumidification condenser dehumidification heat pump system.
Wherein the content of the first and second substances,
the first flow port and the second flow port of the first high temperature side dehumidification heat exchanger 3 and the first low temperature side dehumidification heat exchanger 4 are flow port ports of cold flow channels, and the third flow port and the fourth flow port are flow port ports of hot flow channels; the first flow port and the second flow port of the second high temperature side dehumidifying heat exchanger 8 and the second low temperature side dehumidifying heat exchanger 7 are flow port of a hot flow channel, and the third flow port and the fourth flow port are flow port of a cold flow channel. Or, the first flow port and the second flow port of the first high temperature side dehumidifying heat exchanger 3 and the first low temperature side dehumidifying heat exchanger 4 are flow port of a hot flow channel, and the third flow port and the fourth flow port are flow port of a cold flow channel; the first flow port and the second flow port of the second high temperature side dehumidifying heat exchanger 8 and the second low temperature side dehumidifying heat exchanger 7 are flow port of cold flow channel, and the third flow port and the fourth flow port are flow port of hot flow channel. The first fan 1 and the second fan 9 are both bidirectional fans.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A two-stage double-dehumidification evaporator and double-dehumidification condenser dehumidification heat pump system is characterized by comprising a closed refrigerant system;
the closed refrigerant system comprises a low-temperature side compressor (10), a four-way reversing valve (11), a first low-temperature side dehumidifying heat exchanger (4), a second low-temperature side dehumidifying heat exchanger (7), a low-temperature side throttling device (12), a high-temperature side compressor (13), a first three-way reversing valve (14), a second three-way reversing valve (16), a high-temperature side throttling device (15), a first high-temperature side dehumidifying heat exchanger (3) and a second high-temperature side dehumidifying heat exchanger (8);
the first high-temperature side dehumidification heat exchanger (3) and the second high-temperature side dehumidification heat exchanger (8) are provided with drying agents with uniform adsorption speed; desiccants with high adsorption capacity are arranged on the first low-temperature side dehumidification heat exchanger (4) and the second low-temperature side dehumidification heat exchanger (7);
the refrigerant vapor from the low temperature side compressor (10) is divided into a plurality of paths:
one path is a flow port opening of a first flow channel of a low-temperature side compressor (10) which is connected to a first flow channel of one low-temperature dehumidification heat exchanger of a first low-temperature side dehumidification heat exchanger (4) and a second low-temperature side dehumidification heat exchanger (7) through a first flow channel of a four-way reversing valve (11);
the other flow passage opening of the first flow passage of one of the first low-temperature side dehumidifying heat exchanger (4) and the second low-temperature side dehumidifying heat exchanger (7) is connected to the flow passage opening of the first flow passage of the other one of the first low-temperature side dehumidifying heat exchanger (4) and the second low-temperature side dehumidifying heat exchanger (7) through a low-temperature side throttling device (12);
the other flow passage of the first flow passage of the other low-temperature dehumidification heat exchanger of the first low-temperature dehumidification heat exchanger (4) and the second low-temperature dehumidification heat exchanger (7) flows back to the low-temperature side compressor (10) through the second flow passage of the four-way reversing valve (11);
the other path is a flow port of the outlet of the low-temperature side compressor (10) connected to the first flow channel of one high-temperature dehumidification heat exchanger of the first high-temperature side dehumidification heat exchanger (3) and the second high-temperature side dehumidification heat exchanger (8) through the flow channel of one three-way reversing valve of the high-temperature side compressor (13), the first three-way reversing valve (14) and the second three-way reversing valve (16);
the other flow port of the first flow channel of one of the first high-temperature side dehumidifying heat exchanger (3) and the second high-temperature side dehumidifying heat exchanger (8) is connected with the flow port of the first flow channel of the other one of the first high-temperature side dehumidifying heat exchanger (3) and the second high-temperature side dehumidifying heat exchanger (8) through a high-temperature side throttling device (15);
the other flow passage of the first flow passage of the other high-temperature dehumidification heat exchanger of the first high-temperature side dehumidification heat exchanger (3) and the second high-temperature side dehumidification heat exchanger (8) flows back to the low-temperature side compressor (10) through the flow passage of the other three-way reversing valve of the first three-way reversing valve (14) and the second three-way reversing valve (16) and the second flow passage of the four-way reversing valve (11).
2. The two-stage dual dehumidification evaporator, dual dehumidification condenser, dehumidification heat pump system of claim 1, wherein the two-stage dual dehumidification evaporator, dual dehumidification condenser, dehumidification heat pump system comprises a first mode, a second mode;
in a first mode:
the steam path is a flow port of which the outlet of the low-temperature side compressor (10) is connected to the first flow channel of the second low-temperature side dehumidifying heat exchanger (7) through the first flow channel of the four-way reversing valve (11);
the other flow passage port of the first flow passage of the second low-temperature side dehumidification heat exchanger (7) is connected to the flow passage port of the first flow passage of the first low-temperature side dehumidification heat exchanger (4) through a low-temperature side throttling device (12);
the other flow passage of the first low-temperature side dehumidification heat exchanger (4) flows back to the low-temperature side compressor (10) through the second flow passage of the four-way reversing valve (11);
the other path is a flow channel opening of a first flow channel of the second high-temperature side dehumidification heat exchanger (8) connected to the outlet of the low-temperature side compressor (10) through the high-temperature side compressor (13) and the flow channel of the first three-way reversing valve (14);
the other flow passage port of the first flow passage of the second high-temperature side dehumidification heat exchanger (8) is connected with the flow passage port of the first flow passage of the first high-temperature side dehumidification heat exchanger (3) through a high-temperature side throttling device (15);
the other flow passage of the first high-temperature side dehumidification heat exchanger (3) flows back to the low-temperature side compressor (10) through the flow passage of the second three-way reversing valve (16) and the second flow passage of the four-way reversing valve (11);
in a second mode:
the steam path is a flow port of which the outlet of the low-temperature side compressor (10) is connected to the first flow channel of the first low-temperature side dehumidifying heat exchanger (4) through the first flow channel of the four-way reversing valve (11);
the other flow passage port of the first flow passage of the first low-temperature side dehumidification heat exchanger (4) is connected to the flow passage port of the first flow passage of the second low-temperature side dehumidification heat exchanger (7) through a low-temperature side throttling device (12);
the other flow passage of the first flow passage of the second low-temperature side dehumidification heat exchanger (7) flows back to the low-temperature side compressor (10) through the second flow passage of the four-way reversing valve (11);
the other path is a flow channel opening of a first flow channel of the first high-temperature side dehumidification heat exchanger (3) connected to the outlet of the low-temperature side compressor (10) through a flow channel of the high-temperature side compressor (13) and a flow channel of the second three-way reversing valve (16);
the other flow passage port of the first flow passage of the first high-temperature side dehumidifying heat exchanger (3) is connected to the flow passage port of the first flow passage of the second high-temperature side dehumidifying heat exchanger (8) through a high-temperature side throttling device (15);
the other flow passage of the first flow passage of the second high-temperature side dehumidification heat exchanger (8) flows back to the low-temperature side compressor (10) through the flow passage of the first three-way reversing valve (14) and the second flow passage of the four-way reversing valve (11);
the first mode and the second mode are switched.
3. A two-stage dual dehumidification evaporator dual dehumidification condenser dehumidification heat pump system as recited in claim 2 wherein in said first mode:
the one path is that the outlet of the low-temperature side compressor (10) is connected with the first flow passage port of the four-way reversing valve (11);
a first flow port of the four-way reversing valve (11) is connected with a second flow port;
a second flow port of the four-way reversing valve (11) is connected to a second flow port of the second low-temperature side dehumidification heat exchanger (7);
the first flow channel opening of the second low-temperature side dehumidification heat exchanger (7) is connected with the inlet of the low-temperature side throttling device (12);
the outlet of the low-temperature side throttling device (12) is connected to the second runner opening of the first low-temperature side dehumidification heat exchanger (4);
a first flow passage of the first low-temperature side dehumidification heat exchanger (4) is connected with a fourth flow passage of the four-way reversing valve (11);
a fourth flow port of the four-way reversing valve (11) is connected with a third flow port;
the third flow passage port of the four-way reversing valve (11) is connected with the inlet of the low-temperature side compressor (10);
the other path is that the outlet of the low-temperature side compressor (10) is connected with the inlet of the high-temperature side compressor (13);
the outlet of the high-temperature side compressor (13) is connected with the second flow passage of the first three-way reversing valve (14);
the second flow port of the first three-way reversing valve (14) is connected with the first flow port;
a first flow port of the first three-way reversing valve (14) is connected with a second flow port of the second high-temperature side dehumidification heat exchanger (8);
the first flow channel opening of the second high-temperature side dehumidification heat exchanger (8) is connected with the inlet of the high-temperature side throttling device (15);
the outlet of the high-temperature side throttling device (15) is connected with the second flow passage of the first high-temperature side dehumidification heat exchanger (3);
a first flow passage of the first high-temperature side dehumidification heat exchanger (3) is connected with a first flow passage of a second three-way reversing valve (16);
a first flow port of the second three-way reversing valve (16) is connected with a second flow port;
a second flow passage port of the second three-way reversing valve (16) is connected with a fourth flow passage port of the four-way reversing valve (11);
the third flow passage port of the four-way reversing valve (11) is connected with the inlet of the low-temperature side compressor (10).
4. A two-stage dual dehumidification evaporator dual dehumidification condenser dehumidification heat pump system as recited in claim 2 wherein in said second mode:
the one path is that the outlet of the low-temperature side compressor (10) is connected with the first flow passage port of the four-way reversing valve (11);
the first flow passage port of the four-way reversing valve (11) is connected with the fourth flow passage port;
a fourth flow port of the four-way reversing valve (11) is connected to a first flow port of the first low-temperature side dehumidification heat exchanger (4);
a second runner opening of the first low-temperature side dehumidification heat exchanger (4) is connected with an inlet of the low-temperature side throttling device (12);
the outlet of the low-temperature side throttling device (12) is connected with the first flow passage of the second low-temperature side dehumidifying heat exchanger (7);
a second flow port of the second low-temperature side dehumidification heat exchanger (7) is connected with a second flow port of the four-way reversing valve (11);
the second flow port of the four-way reversing valve (11) is connected with the third flow port;
a third flow passage port of the four-way reversing valve (11) is connected with an inlet of the low-temperature side compressor (10);
the other path is that the outlet of the low-temperature side compressor (10) is connected with the inlet of the high-temperature side compressor (13);
the outlet of the high-temperature side compressor (13) is connected with the third flow passage port of the second three-way reversing valve (16);
a third flow passage of the second three-way reversing valve (16) is connected with the first flow passage;
a first flow passage of the second three-way reversing valve (16) is connected to a first flow passage of the first high-temperature side dehumidification heat exchanger (3);
a second runner opening of the first high-temperature side dehumidification heat exchanger (3) is connected with an inlet of the high-temperature side throttling device (15);
the outlet of the high-temperature side throttling device (15) is connected to the first flow passage of the second high-temperature side dehumidifying heat exchanger (8);
a second flow port of the second high-temperature side dehumidification heat exchanger (8) is connected with a first flow port of a first three-way reversing valve (14);
a first flow passage of the first three-way reversing valve (14) is connected with a third flow passage;
a third flow port of the first three-way reversing valve (14) is connected with a second flow port of the four-way reversing valve (11);
the third flow passage of the four-way reversing valve (11) is connected with the inlet of the low-temperature side compressor (10).
5. The two-stage dual dehumidification evaporator, dual dehumidification condenser, dehumidification heat pump system of claim 1, further comprising a first air to be treated system and a first regeneration air system.
6. The two-stage dual dehumidification evaporator, dual dehumidification condenser, dehumidification heat pump system of claim 1, further comprising a second air-to-be-treated system and a second regeneration air system.
7. A two-stage dual dehumidification evaporator dual dehumidification condenser dehumidification heat pump system as recited in claim 5,
the first air system to be treated comprises a first fan (1), a first air duct (2) and an air supply outlet (5);
the first regeneration air system comprises a second fan (9) and a second air duct (6);
the connection mode of the first air system to be treated and the first regeneration air system is respectively as follows:
first air system to be treated: an outlet of the first fan (1) is connected with a third flow passage port of the first high-temperature side dehumidifying heat exchanger (3) through a first air passage (2);
a fourth flow passage of the first high-temperature side dehumidifying heat exchanger (3) is connected with a third flow passage of the first low-temperature side dehumidifying heat exchanger (4);
a fourth runner port of the first low-temperature side dehumidification heat exchanger (4) is connected with the air supply port (5);
first regeneration air: a third flow passage port of the second low-temperature side dehumidifying heat exchanger (7) is connected with a fourth flow passage port of the second high-temperature side dehumidifying heat exchanger (8);
and a third flow passage opening of the second high-temperature side dehumidifying heat exchanger (8) is connected with an inlet of a second fan (9).
8. A two-stage dual dehumidification evaporator dual dehumidification condenser dehumidification heat pump system as defined in claim 6 wherein the second air to be treated system comprises a second fan (9), a second air duct (6) and a supply air outlet (5);
the second regenerative air system comprises a first air duct (2) and a first fan (1);
the connection mode of the second air system to be treated and the second regeneration air system is respectively as follows:
a second air-to-be-treated system: the air supply outlet (5) is connected with a fourth runner port of the second low-temperature side dehumidification heat exchanger (7) through a second air duct (6);
a third flow passage port of the second low-temperature side dehumidifying heat exchanger (7) is connected with a fourth flow passage port of the second high-temperature side dehumidifying heat exchanger (8);
a third flow passage opening of the second high-temperature side dehumidifying heat exchanger (8) is connected with an outlet of a second fan (9);
a second regeneration air system: a third flow passage of the first low-temperature side dehumidifying heat exchanger (4) is connected with a fourth flow passage of the first high-temperature side dehumidifying heat exchanger (3);
the third flow passage of the first high-temperature side dehumidification heat exchanger (3) is connected with the inlet of the first fan (1) through the first air passage (2).
9. The two-stage double dehumidification evaporator and double dehumidification condenser dehumidification heat pump system according to any one of claims 1 to 8, wherein the first flow port and the second flow port of the first high temperature side dehumidification heat exchanger (3) and the first low temperature side dehumidification heat exchanger (4) are flow ports of a cold flow channel, and the third flow port and the fourth flow port are flow ports of a hot flow channel; the first flow port and the second flow port of the second high-temperature side dehumidifying heat exchanger (8) and the second low-temperature side dehumidifying heat exchanger (7) are flow ports of a hot flow channel, and the third flow port and the fourth flow port are flow ports of a cold flow channel; or the first flow port and the second flow port of the first high-temperature side dehumidifying heat exchanger (3) and the first low-temperature side dehumidifying heat exchanger (4) are flow ports of a heat flow channel, and the third flow port and the fourth flow port are flow ports of a cold flow channel; the first flow port and the second flow port of the second high-temperature side dehumidifying heat exchanger (8) and the second low-temperature side dehumidifying heat exchanger (7) are flow port ports of cold flow channels, and the third flow port and the fourth flow port are flow port ports of hot flow channels.
10. A two-stage double-dehumidification cooling and heating method, which is characterized by comprising the step of dehumidifying, cooling and heating air by using the two-stage double-dehumidification evaporator and double-dehumidification condenser dehumidification heat pump system as claimed in any one of claims 1 to 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826541A (en) * | 2018-05-11 | 2018-11-16 | 浙江大学 | A kind of dehumidification heat exchange heat pump air conditioning system and its operation method with regenerator |
| CN108644929B (en) * | 2018-05-22 | 2020-08-04 | 上海交通大学 | Dehumidification heat pump system with double internal cooling sources and two-stage cooling |
| CN112361639B (en) * | 2019-07-26 | 2022-04-19 | 青岛海尔空调器有限总公司 | Air conditioner |
| WO2021164221A1 (en) * | 2020-02-21 | 2021-08-26 | 艾默生环境优化技术(苏州)有限公司 | Heat pump apparatus and drying device |
| CN113654123A (en) * | 2020-04-29 | 2021-11-16 | 北京航空航天大学 | Low-temperature regeneration heat and humidity independent treatment air conditioning system driven by two-stage compression heat pump |
| CN112524712A (en) * | 2020-12-05 | 2021-03-19 | 广东纽恩泰新能源科技发展有限公司 | Novel balanced double-effect dehumidification system and dehumidification method |
| CN112963907B (en) * | 2021-02-26 | 2022-03-15 | 上海交通大学 | Heat and humidity independent control system of dehumidification heat exchanger coupling compression heat pump |
| CN113175704B (en) * | 2021-04-13 | 2022-06-28 | 上海交通大学 | Greenhouse heat and humidity regulation and control and energy-saving and water-saving device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1428564A (en) * | 2001-12-27 | 2003-07-09 | 袁一军 | Air conditioning method for simultaneously removing humidity and cooling and its equipment |
| CN103292392A (en) * | 2013-01-18 | 2013-09-11 | 清华大学 | Multistage rotary-wheel dehumidification device with auxiliary heat rejection and application method thereof |
| JP5575029B2 (en) * | 2010-08-05 | 2014-08-20 | 株式会社長府製作所 | Desiccant ventilation fan |
| CN205579968U (en) * | 2015-12-25 | 2016-09-14 | 浙江工业大学 | Big temperature rise two -stage of efficient throttle two -stage compression heat pump water heater |
-
2017
- 2017-05-12 CN CN201710335734.9A patent/CN107314483B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1428564A (en) * | 2001-12-27 | 2003-07-09 | 袁一军 | Air conditioning method for simultaneously removing humidity and cooling and its equipment |
| JP5575029B2 (en) * | 2010-08-05 | 2014-08-20 | 株式会社長府製作所 | Desiccant ventilation fan |
| CN103292392A (en) * | 2013-01-18 | 2013-09-11 | 清华大学 | Multistage rotary-wheel dehumidification device with auxiliary heat rejection and application method thereof |
| CN205579968U (en) * | 2015-12-25 | 2016-09-14 | 浙江工业大学 | Big temperature rise two -stage of efficient throttle two -stage compression heat pump water heater |
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