CN110345572B - Dehumidification system and air conditioning system - Google Patents
Dehumidification system and air conditioning system Download PDFInfo
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- CN110345572B CN110345572B CN201910523772.6A CN201910523772A CN110345572B CN 110345572 B CN110345572 B CN 110345572B CN 201910523772 A CN201910523772 A CN 201910523772A CN 110345572 B CN110345572 B CN 110345572B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression 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
- F25B35/00—Boiler-absorbers, i.e. boilers usable for absorption or adsorption
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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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]
- Y02B30/62—Absorption based systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Drying Of Gases (AREA)
- Central Air Conditioning (AREA)
Abstract
本发明涉及一种除湿系统和空调系统，所述除湿系统包括多级除湿子系统和多个相互间耦合的热泵子系统；多级所述除湿子系统和多个所述热泵子系统一一对应；每个所述热泵子系统均为与之对应的所述除湿子系统提供热量和冷量。多个热泵子系统间的耦合，解决了除湿子系统中除湿侧和发生侧冷热量间的不匹配问题，充分利用冷热量，实现能量的梯级利用；通过不同温度的冷热量匹配对应的不同浓度的除湿器和再生器可以有效的降低能耗、节约能源。
The present invention relates to a dehumidification system and an air conditioning system, wherein the dehumidification system comprises a multi-stage dehumidification subsystem and a plurality of mutually coupled heat pump subsystems; the multi-stage dehumidification subsystems correspond one to one with the plurality of heat pump subsystems; each of the heat pump subsystems provides heat and cold for the corresponding dehumidification subsystem. The coupling between the plurality of heat pump subsystems solves the mismatch problem between the cold and heat amount on the dehumidification side and the generation side in the dehumidification subsystem, makes full use of the cold and heat amount, and realizes the cascade utilization of energy; by matching the cold and heat amount at different temperatures with the corresponding dehumidifiers and regenerators of different concentrations, energy consumption can be effectively reduced and energy can be saved.
Description
Technical Field
The invention relates to the technical field of heating ventilation and air conditioning, in particular to a dehumidification system and an air conditioning system.
Background
The temperature and humidity independent control air conditioning system can separate indoor temperature and humidity control into two independent system control, so that the traditional condensing air conditioning system is prevented from dehumidifying and cooling by using a low-temperature cold source lower than the dew point temperature of air, and the cooled and dehumidified air is required to be reheated in order to achieve the indoor design air supply temperature, so that energy quality waste and high energy consumption are caused. As a humidity control system, the solid moisture removal technology has the problems of high requirement on the regeneration temperature of the solid moisture absorbent, difficult regeneration and the like, so that the application of the solution moisture removal technology is more and more widespread. Since the solution emits heat when absorbing water vapor, the temperature of the solution increases due to the emitted heat, and the moisture absorption performance of the solution is remarkably reduced with the increase of the temperature of the solution. By arranging a heat pump cycle, the cooling capacity of an evaporator is utilized to reduce the temperature of the solution and enhance the moisture absorption performance of the solution, and the heat of a condenser is used for concentrating and regenerating the moisture absorption solution. Therefore, the heat pump can provide cold and heat for the solution dehumidification system at the same time, and the full utilization of energy sources is realized. But the heat pump system tends to have a larger amount of condensation than evaporation, and this mismatch between the heat and cold affects the performance of the unit.
Accordingly, there is a need to provide a dehumidification system and an air conditioning system that address the deficiencies of the prior art.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a dehumidifying system and an air-conditioning system.
A dehumidification system comprising a multi-stage dehumidification subsystem and a plurality of heat pump subsystems coupled to one another;
The multistage dehumidification subsystem corresponds to the heat pump subsystems one by one;
Each heat pump subsystem provides heat and cold for the corresponding dehumidification subsystem.
Further, the system comprises a primary dehumidification subsystem, a secondary dehumidification subsystem, a main heat pump subsystem and a secondary heat pump subsystem;
The auxiliary heat pump subsystem is driven by heat provided by the main heat pump subsystem;
the primary dehumidification subsystem comprises a primary dehumidifier and a primary regenerator, and the secondary dehumidification subsystem comprises a secondary dehumidifier and a secondary regenerator;
The main heat pump subsystem and the secondary dehumidification subsystem are intersected with the secondary dehumidifier and can exchange heat in the secondary dehumidifier, the main heat pump subsystem and the secondary dehumidification subsystem are intersected with the secondary regenerator and can exchange heat in the secondary regenerator, the auxiliary heat pump subsystem and the primary dehumidification subsystem are intersected with the primary dehumidifier and can exchange heat in the primary dehumidifier, and the auxiliary heat pump subsystem and the primary dehumidification subsystem are intersected with the primary regenerator and can exchange heat in the primary regenerator.
Further, the main heat pump subsystem comprises a compression type heat pump subsystem or a thermoelectric type heat pump subsystem, and the auxiliary heat pump subsystem comprises an adsorption type heat pump subsystem or an absorption type heat pump subsystem.
Further, the main heat pump subsystem is a compression heat pump subsystem, and the auxiliary heat pump subsystem is an absorption heat pump subsystem;
The compression heat pump subsystem comprises a first condenser, the absorption heat pump subsystem comprises a generating heat exchanger, and the first condenser is connected with the generating heat exchanger through a heat exchange piece and can exchange heat.
Further, the primary dehumidification subsystem and the secondary dehumidification subsystem are semi-permeable membrane type dehumidification subsystems;
the concentration of the solution in the primary dehumidification subsystem is greater than the concentration of the solution in the secondary dehumidification subsystem.
The primary dehumidifier is provided with a primary dehumidification solution channel, and the primary regenerator is provided with a primary regeneration solution channel;
The outlet of the primary dehumidification solution channel is communicated with the inlet of the primary regeneration solution channel through a pipeline, the outlet of the primary regeneration solution channel is communicated with the inlet of the primary dehumidification solution channel through a pipeline, and the primary driving piece is arranged on the pipeline between the primary dehumidification solution channel and the primary regeneration solution channel.
Further, the primary dehumidification subsystem further comprises a first self-circulation driving piece and a second self-circulation driving piece;
the outlet and the inlet of the first-stage regeneration solution channel are communicated with the second self-circulation driving piece through a pipeline.
The secondary dehumidifier is provided with a secondary dehumidification solution channel, and the secondary regenerator is provided with a secondary regeneration solution channel;
The outlet of the secondary dehumidifying solution channel is communicated with the inlet of the secondary regenerating solution channel through a pipeline, the outlet of the secondary regenerating solution channel is communicated with the inlet of the secondary dehumidifying solution channel through a pipeline, and the secondary driving piece is arranged on the pipeline between the secondary dehumidifying solution channel and the secondary regenerating solution channel.
Further, the secondary dehumidification subsystem further comprises a third self-circulation driving piece and a fourth self-circulation driving piece;
the outlet and the inlet of the secondary regeneration solution channel are communicated with the fourth self-circulation driving piece through a pipeline.
The compression heat pump subsystem further comprises a compressor, an electromagnetic valve and a throttle valve, wherein the secondary dehumidifier is provided with a secondary dehumidification refrigerant channel, and the secondary regenerator is provided with a secondary regeneration refrigerant channel;
The air outlet of the compressor is respectively communicated with the inlet of the first condenser and the inlet of the secondary regeneration refrigerant channel, the outlet of the first condenser and the outlet of the secondary regeneration refrigerant channel are respectively communicated with one end of a connecting pipeline, the other end of the connecting pipeline is communicated with the inlet of the secondary dehumidification refrigerant channel, and the outlet of the secondary dehumidification refrigerant channel is communicated with the air suction port of the compressor;
The electromagnetic valve is arranged on a pipeline between the exhaust port of the compressor and the inlet of the secondary regeneration refrigerant channel, and the throttle valve is arranged on the connecting pipeline.
Further, the absorption heat pump subsystem further comprises a generator, an absorber, a second condenser, a second evaporator, an absorption heat exchanger, a condensation heat exchanger, an evaporation condenser and a solution heat exchanger, wherein the primary dehumidifier is provided with a primary dehumidification refrigerant channel, and the primary regenerator is provided with a primary regeneration refrigerant channel;
the generating heat exchanger is arranged in the generator and can exchange heat with the generating heat exchanger, the absorbing heat exchanger is arranged in the absorber and can exchange heat with the absorbing heat exchanger, the condensing heat exchanger is arranged in the second condenser and can exchange heat with the condensing heat exchanger, and the evaporating heat exchanger is arranged in the second evaporator and can exchange heat with the evaporating heat exchanger;
The outlet of the evaporation heat exchanger is communicated with the inlet of the primary dehumidification refrigerant channel through a pipeline, the outlet of the primary dehumidification refrigerant channel is communicated with the inlet of the evaporation heat exchanger through a pipeline, and a dehumidification driving piece is arranged on the pipeline between the primary dehumidification refrigerant channel and the evaporation heat exchanger;
The outlet of the absorption heat exchanger is communicated with the inlet of the condensation heat exchanger through a pipeline, the outlet of the condensation heat exchanger is communicated with the inlet of the primary regeneration refrigerant channel through a pipeline, the outlet of the primary regeneration refrigerant channel is communicated with the inlet of the absorption heat exchanger through a pipeline, and a regeneration driving piece is arranged on the pipeline between the absorption heat exchanger and the condensation heat exchanger, the pipeline between the condensation heat exchanger and the primary regeneration refrigerant channel or the pipeline between the primary regeneration refrigerant channel and the absorption heat exchanger;
The generator, the second condenser, the second evaporator and the absorber are sequentially communicated, the generator and the absorber are in bidirectional communication through the solution heat exchanger, and a solution driving piece is arranged on a pipeline between the generator and the absorber.
Further, the absorption heat pump subsystem further comprises a cold water radiation tail end coil pipe, an outlet of the primary dehumidification refrigerant channel is communicated with an inlet of the cold water radiation tail end coil pipe, an outlet of the cold water radiation tail end coil pipe is communicated with an inlet of the evaporation heat exchanger, and a refrigeration driving piece is arranged on a pipeline between the cold water radiation tail end coil pipe and the evaporation heat exchanger.
Further, the heat exchange part is a heat exchange box, the heat exchange box is in bidirectional communication with the generating heat exchanger through a pipeline, and a heat exchange driving part is arranged on the pipeline between the heat exchange box and the generating heat exchanger.
The automatic heating device is characterized by further comprising a hot-filling piece with a self-heating function, wherein an inlet of the hot-filling piece is communicated with one pipeline between the heat exchange box and the generating heat exchanger, an outlet of the hot-filling piece is communicated with the other pipeline between the heat exchange box and the generating heat exchanger, and a supplement driving piece is arranged on the pipeline between the hot-filling piece and the pipeline between the heat exchange box and the generating heat exchanger.
Furthermore, the hot-filling piece can be an electric water heater or a solar water heater.
Based on the same thought, the invention also provides an air conditioning system which comprises the dehumidification system.
Compared with the closest prior art, the technical scheme of the invention has the following advantages:
The technical scheme of the dehumidification system provided by the invention has the advantages that the multi-stage dehumidification subsystem is arranged for dehumidification, gradient dehumidification can be carried out, repeated dehumidification is carried out, after the dehumidification effects of the multi-stage dehumidification subsystem are overlapped, the dehumidification rate can be improved, the dehumidification effect is improved, the thoroughly of dehumidification is realized, a plurality of mutually coupled heat pump subsystems are respectively in one-to-one correspondence with the multi-stage dehumidification subsystem, the heat pump subsystem provides cold and heat for the corresponding dehumidification subsystem, the dehumidification subsystem utilizes heat generated by the neutralization of the cold and the moisture absorption of the dehumidification subsystem to maintain the moisture absorption capacity of the dehumidification subsystem, the dehumidification subsystem utilizes heat regeneration to ensure the continuous operation of the dehumidification subsystem, the coupling among the heat pump subsystems solves the problem of mismatching between the dehumidification side and the side cold and heat in the dehumidification subsystem, the cold and heat are fully utilized, the energy consumption can be effectively reduced, and the energy is saved through the corresponding dehumidifiers and regenerators with different concentrations at different temperatures.
Drawings
Fig. 1 is a schematic structural diagram of a dehumidification system provided by the present invention.
Wherein the cooling water heat exchanger comprises a 1-cold water radiation end coil, a 2-third self-circulation driving piece, a 3-second-stage dehumidifier, a 4-compressor, a 5-first-stage driving piece, a 6-first self-circulation driving piece, a 7-first-stage dehumidifier, an 8-refrigeration driving piece, a 9-second self-circulation driving piece, a 10-first-stage regenerator, an 11-second condenser, a 12-second evaporator, a 13-absorber, a 14-regeneration driving piece, a 15-generator, a 16-solution heat exchanger, a 17-solution driving piece, a 18-heat exchange driving piece, a 19-supplement driving piece, a 20-heat supplement piece, a 21-first condenser, a 22-electromagnetic valve, a 23-second-stage regenerator, a 24-throttle valve, a 25-fourth self-circulation driving piece, a 26-second-stage driving piece, a 27-heat exchange piece, a 28-condensation heat exchanger, a 29-evaporation heat exchanger, a 30-absorption heat exchanger and a 31-generation heat exchanger.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, the term "coupled" may be a fixed connection, a removable connection, or a unitary construction, may be a mechanical connection, or an electrical connection, may be a direct connection, or may be an indirect connection via an intermediary, or may be an internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to fig. 1 in conjunction with an embodiment. Fig. 1 is a schematic structural diagram of a dehumidification system provided by the present application.
The invention provides a dehumidification system which comprises a multistage dehumidification subsystem and a plurality of heat pump subsystems which are coupled with each other, wherein the multistage dehumidification subsystem corresponds to the heat pump subsystems one by one, and each heat pump subsystem provides heat and cold for the corresponding dehumidification subsystem.
The multi-stage dehumidification subsystem is arranged for dehumidification, gradient dehumidification can be carried out, repeated dehumidification is carried out, after the dehumidification effects of the multi-stage dehumidification subsystem are overlapped, dehumidification rate can be improved, dehumidification effect is improved, and the thoroughly of dehumidification is achieved, a plurality of mutually coupled heat pump subsystems are respectively in one-to-one correspondence with the multi-stage dehumidification subsystem, the heat pump subsystems provide cold and heat for the corresponding dehumidification subsystem, the dehumidification subsystem utilizes the heat generated by neutralization of the cold and moisture absorption of the heat pump subsystem to maintain the moisture absorption capacity of the dehumidifier, the dehumidification subsystem utilizes heat regeneration to ensure continuous operation of the dehumidification subsystem, the problem of mismatching between the dehumidification side and the side cold and heat in the dehumidification subsystem is solved, the cold and heat are fully utilized, the gradient utilization of energy is achieved, and energy consumption and energy conservation can be effectively reduced through the corresponding dehumidifier and regenerator with different concentrations and different temperature and heat quantity matching.
In some embodiments of the invention, the system comprises a primary dehumidifier subsystem, a secondary dehumidifier subsystem, a primary heat pump subsystem and a secondary heat pump subsystem, wherein the secondary heat pump subsystem is driven by heat provided by the primary heat pump subsystem, the primary dehumidifier subsystem comprises a primary dehumidifier 7 and a primary regenerator 10, the secondary dehumidifier subsystem comprises a secondary dehumidifier 3 and a secondary regenerator 23, the primary heat pump subsystem and the secondary dehumidifier subsystem are intersected at the secondary dehumidifier 3 and can exchange heat in the secondary dehumidifier 3, the primary heat pump subsystem and the secondary dehumidifier subsystem are intersected at the secondary regenerator 23 and can exchange heat in the secondary regenerator 23, the secondary heat pump subsystem and the primary dehumidifier subsystem are intersected at the primary dehumidifier 7 and can exchange heat in the primary dehumidifier 7, and the secondary heat pump subsystem and the secondary dehumidifier subsystem are intersected at the primary dehumidifier 10 and can exchange heat in the primary regenerator 10.
The two-stage solution dehumidification subsystem is adopted, the first-stage dehumidification subsystem adopts low-concentration dehumidification solution, the second-stage solution dehumidification subsystem adopts high-concentration dehumidification solution, and the higher the concentration of the dehumidification solution is, the more heat generated by absorbing water vapor and the more energy required by solution regeneration are. Therefore, the primary dehumidification subsystem needs a cold source with less cold to take away the additional heat generated by the moisture absorption of the solution, so that the dehumidification capacity of the solution is guaranteed not to be attenuated, and a heat source with less heat is needed to regenerate the dehumidified solution, so that the continuous operation of the solution dehumidification system is guaranteed. Therefore, the secondary solution dehumidifying subsystem needs a cold source with larger cold quantity to take away the additional heat generated by the moisture absorption of the solution, so that the dehumidifying capacity of the solution is guaranteed not to be attenuated, and a heat source with larger heat quantity is needed to regenerate the dehumidified solution, so that the continuous operation of the solution dehumidifying system is guaranteed. The main heat pump subsystem and the auxiliary heat pump subsystem are mutually coupled, the main heat pump subsystem is utilized to preheat and drive the auxiliary heat pump subsystem, the condensation heat grade of the main heat pump subsystem is high, one part of condensation heat provides regeneration heat for a regenerator of the secondary dehumidification subsystem, the other part of condensation heat provides heat for the auxiliary heat pump subsystem, the medium grade heat of the auxiliary heat pump subsystem is used for solution regeneration of the primary dehumidification subsystem, and the cold energy is used for maintaining the moisture absorption capacity of the primary dehumidification subsystem.
In some embodiments of the invention, the primary heat pump subsystem comprises a compression heat pump subsystem or a thermoelectric heat pump subsystem, and the secondary heat pump subsystem comprises an adsorption heat pump subsystem or an absorption heat pump subsystem. The main heat pump subsystem selects a heat pump system with higher cold and heat quantity, the auxiliary heat pump subsystem selects a heat pump system with lower cold and heat quantity, and the auxiliary heat pump selects a heat pump system which can be driven by using the residual heat of the main heat pump, so that the coupling between the two heat pump subsystems is conveniently completed, and the distribution of the cold and heat quantity of the whole dehumidification system is convenient.
In some embodiments of the invention, the main heat pump subsystem is a compression heat pump subsystem, the auxiliary heat pump subsystem is an absorption heat pump subsystem, the compression heat pump subsystem comprises a first condenser 21, the absorption heat pump subsystem comprises a generating heat exchanger 31, and the first condenser 21 is connected with the generating heat exchanger 31 through a heat exchange piece 27 and can exchange heat. The compression heat pump subsystem operates more stably, provides larger and more stable cold and heat, the absorption heat pump subsystem can be driven by waste heat, can generate cold and heat to meet the cold and heat requirement of the primary dehumidification subsystem, and the first condenser 21 and the generating heat exchanger 31 exchange heat through the heat exchange piece 27, so that the coupling of the two heat pump subsystems can be realized, namely, the absorption heat pump subsystem can be driven by the waste heat of the compression heat pump subsystem. The compression heat pump subsystem is preferably a carbon dioxide transcritical heat pump system.
In some embodiments of the invention, the primary dehumidification subsystem and the secondary dehumidification subsystem are semi-permeable membrane solution dehumidification subsystems, and the concentration of the solution in the primary dehumidification subsystem is smaller than the concentration of the solution in the secondary dehumidification subsystem. The first-stage dehumidification subsystem adopts a low-concentration dehumidification solution, the second-stage solution dehumidification subsystem adopts a high-concentration dehumidification solution, and the higher the concentration of the dehumidification solution is, the more heat generated by absorbing water vapor and the more energy required by solution regeneration are. Therefore, the primary dehumidification subsystem needs a cold source with less cold to take away the additional heat generated by the moisture absorption of the solution, so that the dehumidification capacity of the solution is guaranteed not to be attenuated, and a heat source with less heat is needed to regenerate the dehumidified solution, so that the continuous operation of the solution dehumidification system is guaranteed. Therefore, the secondary solution dehumidifying subsystem needs a cold source with larger cold quantity to take away the additional heat generated by the moisture absorption of the solution, so that the dehumidifying capacity of the solution is guaranteed not to be attenuated, and a heat source with larger heat quantity is needed to regenerate the dehumidified solution, so that the continuous operation of the solution dehumidifying system is guaranteed. The solution in the primary and secondary dehumidification subsystems is preferably lithium bromide solution.
In some embodiments of the present invention, the primary dehumidification subsystem further includes a primary driving member 5, the primary dehumidifier 7 is provided with a primary dehumidification solution channel, the primary regenerator 10 is provided with a primary regeneration solution channel, an outlet of the primary dehumidification solution channel is communicated with an inlet of the primary regeneration solution channel through a pipeline, an outlet of the primary regeneration solution channel is communicated with an inlet of the primary dehumidification solution channel through a pipeline, and the primary driving member 5 is arranged on a pipeline between the primary dehumidification solution channel and the primary regeneration solution channel.
In some embodiments of the invention, the primary dehumidification subsystem further comprises a first self-circulation driving piece 6 and a second self-circulation driving piece 9, wherein the outlet and the inlet of the primary dehumidification solution channel are communicated with the first self-circulation driving piece 6 through a pipeline, and the outlet and the inlet of the primary regeneration solution channel are communicated with the second self-circulation driving piece 9 through a pipeline.
In the primary dehumidification subsystem, the outlet of the first self-circulation driving piece 6 is connected to the inlet of a primary dehumidification solution channel of the primary dehumidifier 7, the outlet of the primary dehumidification solution channel is divided into two paths, one path is connected to the inlet of the first self-circulation driving piece 6 to realize self-circulation of solution, the other path is connected to the inlet of a primary regeneration solution channel of the primary regenerator 10, the outlet of the second self-circulation driving piece 9 is also connected to the inlet of the primary regeneration solution channel, the outlet of the primary regeneration solution channel is divided into two paths, one path is connected to the inlet of the second self-circulation driving piece 9 to realize self-circulation of solution, the other path is connected to the inlet of the primary driving piece 5, and the outlet of the primary driving piece 5 and the outlet of the first self-circulation driving piece 6 are jointly connected to the inlet of the primary dehumidification solution channel of the primary dehumidifier 7 to realize complete thin solution circulation. The primary dehumidifier 7 and the primary regenerator 10 are semi-permeable membrane type heat and mass transfer containers, a heat exchange copper pipe is contained in a semi-permeable membrane, a primary dehumidifying solution channel is formed between the semi-permeable membrane of the primary dehumidifier 7 and the heat exchange copper pipe, a primary regenerating solution channel is formed between the semi-permeable membrane of the primary regenerator 10 and the heat exchange copper pipe, air flows outside the semi-permeable membrane, and the semi-permeable membrane only allows water molecules to pass through, so that the direct contact of the air and the solution is isolated, and the dehumidifying and regenerating performances of the solution are not affected. A first-stage dehumidification refrigerant channel is formed in a heat exchange copper pipe of the first-stage dehumidifier 7, a first-stage regeneration refrigerant channel is formed in a heat exchange copper pipe of the first-stage regenerator 10, the first-stage dehumidification refrigerant channel and the first-stage regeneration refrigerant channel are used for circulating refrigerants, namely liquid water for circulating an absorption heat pump subsystem, the refrigerants in the first-stage dehumidification refrigerant channel and the solution in the first-stage dehumidification solution channel can exchange heat, and the refrigerants in the first-stage regeneration refrigerant channel and the solution in the first-stage regeneration solution channel can exchange heat, which will be described in detail when the absorption heat pump subsystem is introduced below, and the details are omitted.
In some embodiments of the present invention, the secondary dehumidification subsystem further comprises a secondary driving member 26, the secondary dehumidifier 3 is provided with a secondary dehumidification solution channel, the secondary regenerator 23 is provided with a secondary regeneration solution channel, an outlet of the secondary dehumidification solution channel is communicated with an inlet of the secondary regeneration solution channel through a pipeline, an outlet of the secondary regeneration solution channel is communicated with an inlet of the secondary dehumidification solution channel through a pipeline, and the secondary driving member 26 is arranged on a pipeline between the secondary dehumidification solution channel and the secondary regeneration solution channel.
In some embodiments of the present invention, the secondary dehumidification subsystem further comprises a third self-circulation driving member 2 and a fourth self-circulation driving member 25, wherein an outlet and an inlet of the secondary dehumidification solution channel are communicated with the third self-circulation driving member 2 through a pipeline, and an outlet and an inlet of the secondary regeneration solution channel are communicated with the fourth self-circulation driving member 25 through a pipeline.
In the secondary dehumidification subsystem, the outlet of the third self-circulation driving piece 2 is connected to the inlet of a secondary dehumidification solution channel of the secondary dehumidifier 3, the outlet of the secondary dehumidification solution channel is divided into two paths, one path is connected to the inlet of the third self-circulation driving piece 2 to realize self-circulation of solution, the other path is connected to the inlet of a secondary regeneration solution channel of the secondary regenerator 23, the outlet of the fourth self-circulation driving piece 25 is also connected to the inlet of the secondary regeneration solution channel, the outlet of the secondary regeneration solution channel is divided into two paths, one path is connected to the inlet of the fourth self-circulation driving piece 25 to realize self-circulation of solution, the other path is connected to the inlet of the secondary driving piece 26, and the outlet of the secondary driving piece 26 and the outlet of the third self-circulation driving piece 2 are jointly connected to the inlet of the secondary dehumidification solution channel of the secondary dehumidifier 3 to realize complete thin solution circulation. The two-stage dehumidifier 3 and the two-stage regenerator 23 are semi-permeable membrane type heat and mass transfer containers, a heat exchange copper pipe is arranged in the semi-permeable membrane, a two-stage dehumidification solution channel is formed between the semi-permeable membrane of the two-stage dehumidifier 3 and the heat exchange copper pipe, a two-stage regeneration solution channel is formed between the semi-permeable membrane of the two-stage regenerator 23 and the heat exchange copper pipe, air flows outside the semi-permeable membrane, and as the semi-permeable membrane only allows water molecules to pass through, the direct contact of the air and the solution is isolated, and the dehumidification and regeneration performance of the solution are not affected. The heat exchange copper pipe of the secondary dehumidifier 3 is internally provided with a secondary dehumidification refrigerant channel, the heat exchange copper pipe of the secondary regenerator 23 is internally provided with a secondary regeneration refrigerant channel, the secondary dehumidification refrigerant channel and the secondary regeneration refrigerant channel are internally used for circulating refrigerant, namely liquid water for circulating an absorption heat pump subsystem, the refrigerant in the secondary dehumidification refrigerant channel and the solution in the secondary dehumidification solution channel can be subjected to heat exchange, and the refrigerant in the secondary regeneration refrigerant channel and the solution in the secondary regeneration solution channel can be subjected to heat exchange, so that the absorption heat pump subsystem will be described in detail later, and the details are not repeated here.
In some embodiments of the present invention, the compression heat pump subsystem further includes a compressor 4, an electromagnetic valve 22, and a throttle valve 24, the secondary dehumidifier 3 is provided with a secondary dehumidifying refrigerant channel, the secondary regenerator 23 is provided with a secondary regenerating refrigerant channel, an exhaust port of the compressor 4 is respectively communicated with an inlet of the first condenser 21 and an inlet of the secondary regenerating refrigerant channel, an outlet of the first condenser 21 and an outlet of the secondary regenerating refrigerant channel are respectively communicated with one end of a connecting pipeline, the other end of the connecting pipeline is communicated with an inlet of the secondary dehumidifying refrigerant channel, an outlet of the secondary dehumidifying refrigerant channel is communicated with an air suction port of the compressor 4, the electromagnetic valve 22 is arranged on a pipeline between the exhaust port of the compressor 4 and the inlet of the secondary regenerating refrigerant channel, and the throttle valve 24 is arranged on the connecting pipeline. The compression type heat pump subsystem respectively penetrates through the secondary dehumidifier 3 and the secondary regenerator 23, a heat exchange copper pipe forming a secondary regeneration refrigerant channel in the secondary regenerator 23 is used as a condenser of the compression type heat pump subsystem to release heat, a heat exchange copper pipe forming a secondary dehumidification refrigerant channel in the secondary dehumidifier 3 is used as an evaporator of the compression type heat pump subsystem to absorb heat, meanwhile, the first condenser 21 is also used as a condenser and is connected with the secondary regenerator 23 in parallel, high-temperature and high-pressure gas compressed by the compressor 4 is split into the two condensers, heat in the first condenser 21 is used as waste heat to be transmitted into the absorption type heat pump subsystem through the heat exchange piece 27 and is used for driving the absorption type heat pump subsystem, and the coupling between the two heat pump subsystems is realized.
In some embodiments of the invention, the absorption heat pump subsystem further comprises a generator 15, an absorber 13, a second condenser 11, a second evaporator 12, an absorption heat exchanger 30, a condensation heat exchanger 28, an evaporation condenser, and a solution heat exchanger 16; the primary dehumidifier 7 is provided with a primary dehumidification refrigerant channel, and the primary regenerator 10 is provided with a primary regeneration refrigerant channel; the generating heat exchanger 31 is arranged in the generator 15 and can exchange heat, the absorbing heat exchanger 30 is arranged in the absorber 13 and can exchange heat, the condensing heat exchanger 28 is arranged in the second condenser 11 and can exchange heat, the evaporating heat exchanger 29 is arranged in the second evaporator 12 and can exchange heat, the outlet of the evaporating heat exchanger 29 is communicated with the inlet of the primary dehumidifying refrigerant channel through a pipeline, the outlet of the primary dehumidifying refrigerant channel is communicated with the inlet of the evaporating heat exchanger 29 through a pipeline, a dehumidifying driving piece is arranged on a pipeline between the primary dehumidifying refrigerant channel and the evaporating heat exchanger 29, the outlet of the absorbing heat exchanger 30 is communicated with the inlet of the condensing heat exchanger 28 through a pipeline, the outlet of the condensing heat exchanger 28 is communicated with the inlet of the primary regenerating refrigerant channel through a pipeline, the outlet of the primary regenerating refrigerant channel is communicated with the inlet of the absorbing heat exchanger 30 through a pipeline, a pipeline between the absorbing heat exchanger 30 and the condensing heat exchanger 28, a dehumidifying driving piece is arranged on a pipeline between the condensing heat exchanger 28 and the first refrigerant channel or between the second regenerating heat exchanger 14 and the first refrigerant channel and the second regenerating heat exchanger 15 The second evaporator 12 is sequentially communicated with the absorber 13, the generator 15 is in bidirectional communication with the absorber 13 through the solution heat exchanger 16, and a solution driving piece 17 is arranged on a pipeline between the generator 15 and the absorber 13.
The absorption heat pump subsystem structure comprises three water circulation systems, a solution circulation system and a refrigerant water circulation system, wherein the first water circulation system is water circulation between a heat exchange element 27 and a generating heat exchanger 31, and the second water circulation system is an absorption heat exchanger 30, a condensing heat exchanger 28, a primary regeneration refrigerant channel and a regeneration driving element 14 which are sequentially connected through pipelines to form a closed water circulation loop. The third water circulation system is an evaporation heat exchanger 29, a primary dehumidifying refrigerant channel and a dehumidifying driving part which are sequentially connected through pipelines to form a closed water circulation loop. The generator 15, the solution heat exchanger 16, the absorber 13 and the solution driving member 17 are sequentially connected through pipelines to form a solution circulation loop, and the medium of the circulation loop is lithium bromide solution. The condenser, the evaporator and the absorber 13 are connected in sequence through pipelines to form a refrigerant water system.
In some embodiments of the present invention, the absorption heat pump subsystem further comprises a cold water radiation end coil 1, an outlet of the primary dehumidification refrigerant channel is communicated with an inlet of the cold water radiation end coil 1, an outlet of the cold water radiation end coil 1 is communicated with an inlet of the evaporation heat exchanger 29, and a refrigeration driving member 8 is arranged on a pipeline between the cold water radiation end coil 1 and the evaporation heat exchanger 29. The third water circulation system is added with a cold water radiation end coil 1, and can utilize cold water in the third water circulation system to refrigerate.
In some embodiments of the present invention, the heat exchanging element 27 is a heat exchanging box, the heat exchanging box is in bidirectional communication with the generating heat exchanger 31 through a pipeline, and a heat exchanging driving element 18 is arranged on the pipeline between the heat exchanging box and the generating heat exchanger 31. Under the driving action of the heat exchange driving piece 18, the water in the heat exchange box flows into the generating heat exchanger 31 with the heat released by the first condenser 21, and the heat is transferred into the solution in the generator 15 and then returns into the heat exchange box, so that the heat transfer between the two heat pump subsystems is realized in the process of completing the first water circulation system.
In some embodiments of the present invention, the heat-supplementing element 20 with self-heating function is further provided, the inlet of the heat-supplementing element 20 is communicated with one pipeline between the heat exchange box and the generating heat exchanger 31, the outlet of the heat-supplementing element 20 is communicated with the other pipeline between the heat exchange box and the generating heat exchanger 31, and the pipeline between the heat-supplementing element 20 and the pipeline between the heat exchange box and the generating heat exchanger 31 is provided with a supplementing driving element 19. The thermal supplement 20 can provide more heat to the absorption heat pump subsystem, ensuring that it is stably driven and provides the cooling heat required by the primary dehumidification subsystem. The hot water outlet of the heat supplementing member 20 is connected to the outlet of the heat exchanging box through the supplementing driving member 19, and is connected to the inlet of the generating heat exchanger 31 through the heat exchanging driving member 18, and the outlet of the generating heat exchanger 31 is divided into two paths, wherein one path is connected to the inlet of the heat exchanging box, and the other path is connected to the inlet of the heat supplementing member 20.
In some embodiments of the present invention, the thermal refill 20 may be an electric water heater or a solar water heater. The electric water heater can stably provide hot water and heat, is convenient to control, and the solar water heater utilizes renewable energy sources to reduce energy consumption.
The third self-circulation driving piece, the first self-circulation driving piece, the refrigeration driving piece, the second self-circulation driving piece, the regeneration driving piece, the solution driving piece, the heat exchange driving piece, the supplementary driving piece, the fourth self-circulation driving piece and the second driving piece can be all circulation pumps.
The working principle of the dehumidification system provided by the application is described in detail below:
Fresh air (air to be treated) firstly enters a primary dehumidification subsystem to carry out a heat mass exchange process with dehumidification solution flowing down from the top of the primary dehumidifier 7, low-temperature chilled water flowing out of an evaporation heat exchanger 29 in an absorption heat pump subsystem flows in a heat exchange copper pipe in the primary dehumidifier 7, and the dehumidification solution flowing down from the top is cooled so as to take away heat in the heat mass exchange process of the dehumidification solution and air, so that the solution dehumidification capability in the primary dehumidification subsystem is enhanced. The primary treated fresh air enters a secondary dehumidification subsystem to carry out a heat mass exchange process with the dehumidification solution flowing down from the top of the secondary dehumidifier 3, and the refrigerant in the compression heat pump subsystem evaporates phase change in a heat exchange copper pipe arranged in the secondary dehumidifier 3 to absorb heat and cools the dehumidification solution flowing down from the top so as to take away the heat in the heat mass exchange process of the dehumidification solution and air, thereby enhancing the solution dehumidification capability in the secondary dehumidification subsystem. The fresh air after two-stage dehumidification reaches an air supply state and is sent into a room.
At the same time, return air enters from the secondary regenerator 23 of the secondary dehumidification subsystem and undergoes heat and mass exchange with the dehumidification solution flowing down from the top of the secondary regenerator 23. The secondary regenerator 23 is a solution regenerator and also serves as a condenser in a compression heat pump subsystem, part of refrigerant in the compression heat pump subsystem is cooled in a heat exchange copper pipe arranged in the secondary regenerator 23, and the dehumidified solution flowing down from the top is heated, so that the heat exchange driving force of the solution and return air is increased, the regeneration of the solution is realized, and the regeneration effect is improved. The return air flows out of the secondary regenerator 23 and then rises in temperature and continues to the primary regenerator 10 of the primary dehumidification subsystem where it undergoes a heat and mass exchange with the dehumidification solution flowing down from the top of the primary regenerator 10. The dehumidified solution of the primary dehumidification subsystem flows in the semipermeable membrane of the primary regenerator 10 while being heated and regenerated by the medium-grade heat from the absorber 13 and the condenser. At the same time, wen Huifeng of the height also heats the dehumidifying solution in the semipermeable membrane of the primary regenerator 10, and the two heat sources jointly realize the regeneration of the solution of the primary dehumidifying subsystem.
When the two-stage dehumidification subsystem works, most of the solution at the bottom of the dehumidifier is taken as the circulating solution in the dehumidifier to be sent to the top of the dehumidifier by the self-circulation driving piece and is subjected to heat mass exchange with fresh air, the rest of the solution flows out from the bottom of the dehumidifier and enters the regenerator to be regenerated, most of the solution at the bottom of the regenerator is taken as the circulating solution in the regenerator to be sent to the top of the regenerator by the self-circulation driving piece and is heated by a heat source to be regenerated, and the rest of the solution flows out from the bottom of the regenerator and is sent to the dehumidifier by the driving piece.
The evaporator in the compression heat pump is combined with the secondary dehumidifier 3, the refrigerant evaporates in the secondary dehumidification refrigerant channel of the secondary dehumidifier 3 to absorb the heat of the solution in the secondary dehumidification solution channel, the refrigerant gas with low temperature and low pressure is compressed into high-temperature and high-pressure gas by the compressor 4, part of the high-temperature and high-pressure gas enters the secondary regeneration refrigerant channel of the secondary regenerator 23 through the electromagnetic valve 22 to cool down, and the dehumidification solution is heated and regenerated. Another part of the high-temperature and high-pressure gas enters the first condenser 21 to heat the liquid water in the heat exchange tank.
The hot water in the heat exchange box and the hot water in the solar water heater enter the generating heat exchanger 31 together to release heat to heat the dilute solution in the generator 15, the dilute solution is heated and concentrated into a concentrated solution, and the concentrated solution exchanges heat with the dilute solution through the solution heat exchanger 16 to reduce the temperature, namely, the heat flows back to the absorber 13. The concentrated solution absorbs the refrigerant water vapor in the absorber 13 and gives off heat to heat the circulating water in the absorption heat exchanger 30. The high-temperature refrigerant water vapor generated from the concentrated solution in the generator 15 enters the second condenser 11, is condensed into liquid refrigerant water, and gives off heat, which heats the circulating water flowing from the absorption heat exchanger 30 to the condensation heat exchanger 28. The hot water with medium grade heat flowing out of the condensing heat exchanger 28 enters a first-stage regeneration refrigerant channel of the first-stage regenerator 10 to heat and regenerate the solution. The liquid refrigerant water in the second condenser 11 enters the second evaporator 12 to evaporate and absorb heat to become refrigerant water vapor, which is absorbed by the concentrated solution in the absorber 13. A coolant water and lithium bromide solution circulation system is completed.
The evaporation process in the second evaporator 12 cools the circulating water in the evaporation heat exchanger 29 to become chilled water. Chilled water firstly flows through a primary dehumidification refrigerant channel in the primary dehumidifier 7 to cool a dehumidification solution, then enters the cold water radiation tail end coil 1 to remove indoor sensible heat load, and then enters the evaporation heat exchanger 29 through the refrigeration driving piece 8 to be cooled to form a complete water circulation loop.
Based on the same thought, the invention also provides an air conditioning system which comprises the dehumidification system.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present invention.
Claims (11)
1. A dehumidification system comprising a multi-stage dehumidification subsystem and a plurality of heat pump subsystems coupled to one another;
The multistage dehumidification subsystem corresponds to the heat pump subsystems one by one;
Each heat pump subsystem provides heat and cold for the corresponding dehumidification subsystem; the multi-stage dehumidification subsystem comprises a primary dehumidification subsystem and a secondary dehumidification subsystem, wherein the heat pump subsystems comprise a main heat pump subsystem and a secondary heat pump subsystem;
The auxiliary heat pump subsystem is driven by heat provided by the main heat pump subsystem;
The primary dehumidification subsystem comprises a primary dehumidifier (7) and a primary regenerator (10), and the secondary dehumidification subsystem comprises a secondary dehumidifier (3) and a secondary regenerator (23);
The main heat pump subsystem and the secondary dehumidifier subsystem are intersected with the secondary dehumidifier (3) and can exchange heat in the secondary dehumidifier (3), the main heat pump subsystem and the secondary dehumidifier subsystem are intersected with the secondary regenerator (23) and can exchange heat in the secondary regenerator (23), the auxiliary heat pump subsystem and the primary dehumidifier subsystem are intersected with the primary dehumidifier (7) and can exchange heat in the primary dehumidifier (7), and the auxiliary heat pump subsystem and the primary dehumidifier subsystem are intersected with the primary regenerator (10) and can exchange heat in the primary regenerator (10);
The system comprises a main heat pump subsystem, a secondary heat pump subsystem and a heat exchange component, wherein the main heat pump subsystem is a compression type heat pump subsystem, and the secondary heat pump subsystem is an absorption type heat pump subsystem;
The first-stage dehumidification subsystem and the second-stage dehumidification subsystem are semi-permeable membrane type dehumidification subsystems, and the concentration of the solution in the first-stage dehumidification subsystem is smaller than that in the second-stage dehumidification subsystem;
The absorption heat pump subsystem further comprises a generator (15), an absorber (13), a second condenser (11), a second evaporator (12), an absorption heat exchanger (30), a condensation heat exchanger (28), an evaporation heat exchanger (29) and a solution heat exchanger (16), wherein the primary dehumidifier (7) is provided with a primary dehumidification refrigerant channel, and the primary regenerator (10) is provided with a primary regeneration refrigerant channel;
The generating heat exchanger (31) is arranged in the generator (15) and can exchange heat with the generating heat exchanger, the absorption heat exchanger (30) is arranged in the absorber (13) and can exchange heat with the absorbing heat exchanger, the condensing heat exchanger (28) is arranged in the second condenser (11) and can exchange heat with the condensing heat exchanger, and the evaporating heat exchanger (29) is arranged in the second evaporator (12) and can exchange heat with the evaporating heat exchanger;
The outlet of the evaporation heat exchanger (29) is communicated with the inlet of the primary dehumidification refrigerant channel through a pipeline, the outlet of the primary dehumidification refrigerant channel is communicated with the inlet of the evaporation heat exchanger (29) through a pipeline, and a dehumidification driving piece is arranged on the pipeline between the primary dehumidification refrigerant channel and the evaporation heat exchanger (29);
The outlet of the absorption heat exchanger (30) is communicated with the inlet of the condensation heat exchanger (28) through a pipeline, the outlet of the condensation heat exchanger (28) is communicated with the inlet of the primary regeneration refrigerant channel through a pipeline, the outlet of the primary regeneration refrigerant channel is communicated with the inlet of the absorption heat exchanger (30) through a pipeline, and a regeneration driving piece (14) is arranged on the pipeline between the absorption heat exchanger (30) and the condensation heat exchanger (28), the pipeline between the condensation heat exchanger (28) and the primary regeneration refrigerant channel or the pipeline between the primary regeneration refrigerant channel and the absorption heat exchanger (30);
The generator (15), the second condenser (11), the second evaporator (12) and the absorber (13) are sequentially communicated, the generator (15) and the absorber (13) are in bidirectional communication through the solution heat exchanger (16), and a solution driving piece (17) is arranged on a pipeline between the generator (15) and the absorber (13).
2. The dehumidification system according to claim 1, wherein the primary dehumidification subsystem further comprises a primary driving member (5), the primary dehumidifier (7) is provided with a primary dehumidification solution channel, and the primary regenerator (10) is provided with a primary regeneration solution channel;
The outlet of the primary dehumidification solution channel is communicated with the inlet of the primary regeneration solution channel through a pipeline, the outlet of the primary regeneration solution channel is communicated with the inlet of the primary dehumidification solution channel through a pipeline, and the primary driving piece (5) is arranged on the pipeline between the primary dehumidification solution channel and the primary regeneration solution channel.
3. The dehumidification system according to claim 2, wherein the primary dehumidification subsystem further comprises a first self-circulation drive (6) and a second self-circulation drive (9);
The outlet and the inlet of the primary dehumidifying solution channel are communicated with the first self-circulation driving piece (6) through a pipeline, and the outlet and the inlet of the primary regenerating solution channel are communicated with the second self-circulation driving piece (9) through a pipeline.
4. The dehumidification system according to claim 1, wherein the secondary dehumidification subsystem further comprises a secondary drive (26), the secondary dehumidifier (3) is provided with a secondary dehumidification solution channel, and the secondary regenerator (23) is provided with a secondary regeneration solution channel;
The outlet of the secondary dehumidifying solution channel is communicated with the inlet of the secondary regenerating solution channel through a pipeline, the outlet of the secondary regenerating solution channel is communicated with the inlet of the secondary dehumidifying solution channel through a pipeline, and the secondary driving piece (26) is arranged on the pipeline between the secondary dehumidifying solution channel and the secondary regenerating solution channel.
5. The dehumidification system of claim 4, wherein the secondary dehumidification subsystem further comprises a third self-circulation drive (2) and a fourth self-circulation drive (25);
The outlet and the inlet of the secondary dehumidifying solution channel are communicated with the third self-circulation driving piece (2) through a pipeline, and the outlet and the inlet of the secondary regenerating solution channel are communicated with the fourth self-circulation driving piece (25) through a pipeline.
6. The dehumidification system according to claim 1, wherein the compression heat pump subsystem further comprises a compressor (4), an electromagnetic valve (22) and a throttle valve (24), the secondary dehumidifier (3) is provided with a secondary dehumidification refrigerant channel, and the secondary regenerator (23) is provided with a secondary regeneration refrigerant channel;
The exhaust port of the compressor (4) is respectively communicated with the inlet of the first condenser (21) and the inlet of the secondary regeneration refrigerant channel, the outlet of the first condenser (21) and the outlet of the secondary regeneration refrigerant channel are respectively communicated with one end of a connecting pipeline, the other end of the connecting pipeline is communicated with the inlet of the secondary dehumidification refrigerant channel, and the outlet of the secondary dehumidification refrigerant channel is communicated with the air suction port of the compressor (4);
The electromagnetic valve (22) is arranged on a pipeline between the exhaust port of the compressor (4) and the inlet of the secondary regeneration refrigerant channel, and the throttle valve (24) is arranged on the connecting pipeline.
7. The dehumidification system according to claim 6, wherein the absorption heat pump subsystem further comprises a cold water radiation end coil (1), an outlet of the primary dehumidification refrigerant channel is communicated with an inlet of the cold water radiation end coil (1), an outlet of the cold water radiation end coil (1) is communicated with an inlet of the evaporation heat exchanger (29), and a refrigeration driving piece (8) is arranged on a pipeline between the cold water radiation end coil (1) and the evaporation heat exchanger (29).
8. The dehumidification system according to claim 1, wherein the heat exchange member (27) is a heat exchange box, the heat exchange box is in bidirectional communication with the generating heat exchanger (31) through a pipeline, and a heat exchange driving member (18) is arranged on the pipeline between the heat exchange box and the generating heat exchanger (31).
9. The dehumidification system according to claim 8, further comprising a thermal replenishment (20) having a self-heating function, wherein an inlet of the thermal replenishment (20) is in communication with one of the pipes between the heat exchange tank and the heat generation exchanger (31), an outlet of the thermal replenishment (20) is in communication with the other of the pipes between the heat exchange tank and the heat generation exchanger (31), and a replenishment drive (19) is provided on the pipe between the thermal replenishment (20) and the heat exchange tank and the heat generation exchanger (31).
10. A dehumidification system according to claim 9, wherein the thermal refill (20) may be an electric water heater or a solar water heater.
11. An air conditioning system comprising a dehumidification system according to any one of claims 1 to 10.
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|---|---|---|---|---|
| CN101846369A (en) * | 2010-05-12 | 2010-09-29 | 清华大学 | Heat recovery solution dehumidifying fresh air handling unit |
| CN210425328U (en) * | 2019-06-17 | 2020-04-28 | 珠海格力电器股份有限公司 | Dehumidification system and air conditioning system |
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| Publication number | Publication date |
|---|---|
| CN110345572A (en) | 2019-10-18 |
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