CN110345572A - Dehumidification system and air conditioning system - Google Patents

Abstract

The present invention relates to a dehumidification system and an air conditioning system. The dehumidification system includes a multi-stage dehumidification subsystem and a plurality of mutually coupled heat pump subsystems; the multi-stage dehumidification subsystem corresponds to the plurality of heat pump subsystems one by one ; Each of the heat pump subsystems provides heat and cooling for the corresponding dehumidification subsystem. The coupling between multiple heat pump subsystems solves the mismatch problem between the cold and heat on the dehumidification side and the generation side in the dehumidification subsystem, makes full use of the cold and heat, and realizes the cascade utilization of energy; through the matching of cold and heat at different temperatures Different concentrations of dehumidifiers and regenerators can effectively reduce energy consumption and save energy.

Description

A dehumidification system and air conditioning system

technical field

The invention relates to the technical field of heating, ventilating and air-conditioning, in particular to a dehumidification system and an air-conditioning system.

Background technique

Independent control of temperature and humidity The air conditioning system can separate the indoor temperature and humidity control into two independent system controls, avoiding the traditional condensing air conditioning system using a low-temperature cold source lower than the air dew point temperature for dehumidification and cooling, in order to achieve indoor design delivery. Wind temperature needs to reheat the cooled and dehumidified air, resulting in waste of energy quality and high energy consumption. As a humidity control system, the solid dehumidification technology has problems such as high regeneration temperature and difficult regeneration of the solid moisture absorbent. Therefore, the application of the solution dehumidification technology is becoming more and more extensive. Since the solution will release heat when it absorbs water vapor, the released heat will cause the temperature of the solution to rise, and the hygroscopic performance of the solution will decrease significantly as the temperature of the solution increases. By setting the heat pump cycle, the cooling capacity of the evaporator is used to reduce the solution temperature and enhance the hygroscopic performance of the solution, and the heat of the condenser is used for the concentrated regeneration of the hygroscopic solution. Therefore, the heat pump can provide cold and heat for the solution dehumidification system at the same time, so as to realize the full utilization of energy. However, the heat of condensation in the heat pump system is often greater than the heat of evaporation. This mismatch between cold and heat will affect the performance of the unit.

Therefore, it is necessary to provide a dehumidification system and an air conditioning system to solve the deficiencies in the prior art.

Contents of the invention

In order to solve the problems in the prior art, the present invention provides a dehumidification system and an air conditioning system.

A dehumidification system, including a multi-stage dehumidification subsystem and a plurality of mutually coupled heat pump subsystems;

The multi-stage dehumidification subsystems are in one-to-one correspondence with the plurality of heat pump subsystems;

Each of the heat pump subsystems provides heat and cooling for the corresponding dehumidification subsystem.

Further, it includes the first-level dehumidification subsystem, the second-level dehumidification subsystem, the main heat pump subsystem and the auxiliary heat pump subsystem;

The auxiliary heat pump subsystem is driven by the heat provided by the main heat pump subsystem;

The primary dehumidification subsystem includes a primary dehumidifier and a primary regenerator, and the secondary dehumidification subsystem includes a secondary dehumidifier and a secondary regenerator;

The main heat pump subsystem and the secondary dehumidification subsystem meet at the secondary dehumidifier, and can perform heat exchange in the secondary dehumidifier; the main heat pump subsystem and the secondary dehumidifier The system intersects with the secondary regenerator, and can perform heat exchange in the secondary regenerator; the secondary heat pump subsystem and the primary dehumidification subsystem intersect with the primary dehumidifier, and can be Heat exchange is performed in the primary dehumidifier; the secondary heat pump subsystem and the primary dehumidification subsystem meet in the primary regenerator, and heat exchange can be performed in the primary regenerator.

Further, the main heat pump subsystem includes a compression heat pump subsystem or a thermoelectric heat pump subsystem; the secondary heat pump subsystem includes an adsorption heat pump subsystem or an absorption heat pump subsystem.

Further, the main heat pump subsystem is a compression heat pump subsystem, and the secondary heat pump subsystem is an absorption heat pump subsystem;

The compression heat pump subsystem includes a first condenser, the absorption heat pump subsystem includes a heat exchanger, and the first condenser is connected to the heat exchanger through a heat exchange element and can perform heat exchange.

Further, both the primary dehumidification subsystem and the secondary dehumidification subsystem are semi-permeable membrane 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.

Further, the primary dehumidification subsystem also includes a primary drive member; 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 communicates with the inlet of the primary regeneration solution channel through a pipeline, the outlet of the primary regeneration solution channel communicates with the inlet of the primary dehumidification solution channel through a pipeline, and the The primary driving member is arranged on the pipeline between the primary dehumidification solution channel and the primary regeneration solution channel.

Further, the primary dehumidification subsystem also includes a first self-circulation drive and a second self-circulation drive;

The outlet and inlet of the primary dehumidification solution channel are communicated with the first self-circulation driver through a pipeline; the outlet and inlet of the primary regeneration solution channel are communicated with the second self-circulation driver through a pipeline.

Further, the secondary dehumidification subsystem also includes a secondary driver; 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 dehumidification solution channel communicates with the inlet of the secondary regeneration solution channel through a pipeline, the outlet of the secondary regeneration solution channel communicates with the inlet of the secondary dehumidification solution channel through a pipeline, and the The secondary driving member is arranged on the pipeline between the secondary dehumidification solution channel and the secondary regeneration solution channel.

Further, the secondary dehumidification subsystem also includes a third self-circulation driver and a fourth self-circulation driver;

The outlet and inlet of the secondary dehumidification solution channel are communicated with the third self-circulation driver through a pipeline; the outlet and inlet of the secondary regeneration solution channel are communicated with the fourth self-circulation driver through a pipeline.

Further, the compression heat pump subsystem also includes a compressor, a solenoid valve, and a throttle valve; the secondary dehumidifier is provided with a secondary dehumidification refrigerant channel, and the secondary regenerator is provided with a secondary regeneration refrigerant channel;

The exhaust port of the compressor communicates with the inlet of the first condenser and the inlet of the secondary regenerative refrigerant channel respectively, and the outlet of the first condenser and the outlet of the secondary regenerative refrigerant channel are respectively connected with One end of the connecting pipeline is communicated, the other end of the connecting pipeline is communicated with the inlet of the secondary dehumidification refrigerant passage, and the outlet of the secondary dehumidification refrigerant passage is communicated with the suction port of the compressor;

The electromagnetic valve is arranged on the pipeline between the exhaust port of the compressor and the inlet of the secondary regenerative refrigerant channel, and the throttle valve is arranged on the connecting pipeline.

Further, the absorption heat pump subsystem also includes a generator, an absorber, a second condenser, a second evaporator, an absorption heat exchanger, a condensation heat exchanger, an evaporative condenser, and a solution heat exchanger; the one The first-stage dehumidifier is provided with a first-stage dehumidification refrigerant passage, and the first-stage regenerator is provided with a first-stage regenerative refrigerant passage;

The generating heat exchanger is arranged in the generator and both can exchange heat, the absorption heat exchanger is arranged in the absorber and both can exchange heat, and the condensing heat exchanger is arranged in In the second condenser and the two can exchange heat, the evaporation heat exchanger is arranged in the second evaporator and the two can exchange heat;

The outlet of the evaporative heat exchanger communicates with the inlet of the first-stage dehumidification refrigerant passage through a pipeline, the outlet of the first-stage dehumidification refrigerant passage communicates with the inlet of the evaporative heat exchanger through a pipeline, and the first-stage A dehumidification driver is provided on the pipeline between the dehumidification refrigerant passage and the evaporative heat exchanger;

The outlet of the absorption heat exchanger communicates with the inlet of the condensing heat exchanger through pipelines, the outlet of the condensing heat exchanger communicates with the inlet of the primary regeneration refrigerant channel through pipelines, and the primary regeneration The outlet of the refrigerant passage communicates with the inlet of the absorption heat exchanger through a pipeline, and the pipeline between the absorption heat exchanger and the condensation heat exchanger, the condensation heat exchanger and the primary regeneration refrigerant passage A regenerative drive is provided on the pipeline between or between the first-stage regenerative refrigerant channel and the absorption heat exchanger;

The generator, the second condenser, the second evaporator and the absorber are connected in sequence, and the generator and the absorber are bidirectionally connected through the solution heat exchanger; The pipeline between the absorbers is provided with solution driving parts.

Further, the absorption heat pump subsystem also includes a cold water radiation end coil; the outlet of the primary dehumidification refrigerant channel communicates with the inlet of the cold water radiation end coil, and the outlet of the cold water radiation end coil communicates with the cold water radiation end coil. The inlet of the evaporative heat exchanger is communicated; the pipeline between the cold water radiation end coil and the evaporative heat exchanger is provided with a refrigeration drive.

Further, the heat exchange element is a heat exchange box, and the heat exchange box is bidirectionally connected with the generating heat exchanger through pipelines, and the pipeline between the heat exchange box and the generating heat exchanger is provided with a heat exchanger. thermal drive.

Further, it also includes a heat supplementary part with self-heating function, the inlet of the heat supplementary part communicates with a pipeline between the heat exchange box and the generating heat exchanger, and the outlet of the heat supplementary part communicates with the Another pipeline between the heat exchange box and the generating heat exchanger is connected; a supplementary drive is provided on the pipeline between the heat supplementary part and the pipeline between the heat exchange box and the generating heat exchanger .

Further, the heat supplement can be an electric water heater or a solar water heater.

Based on the same inventive idea, the present invention also provides an air conditioning system, including the dehumidification system.

Compared with the closest prior art, the technical solution of the present invention has the following advantages:

The dehumidification system provided by the technical solution provided by the present invention can perform gradient dehumidification and repeated dehumidification by setting a multi-stage dehumidification subsystem for dehumidification. After the dehumidification effect of the multi-stage dehumidification subsystem is superimposed, the dehumidification rate can be improved, and the dehumidification effect can be improved. The thoroughness of dehumidification; while multiple coupled heat pump subsystems correspond to the multi-stage dehumidification subsystem respectively, the heat pump subsystem provides cooling and heat for the corresponding dehumidification subsystem, and the dehumidification subsystem utilizes the cooling capacity Neutralize the heat generated by its moisture absorption to maintain its moisture absorption capacity. The dehumidification subsystem uses heat regeneration to ensure the continuous operation of the dehumidification subsystem; To solve the problem of mismatch between cold and heat, make full use of cold and heat to realize cascade utilization of energy; matching dehumidifiers and regenerators with different concentrations corresponding to different temperatures of cold and heat can effectively reduce energy consumption and save energy.

Description of drawings

Fig. 1 is a schematic structural diagram of a dehumidification system provided by the present invention.

Among them, 1-cold water radiation end coil; 2-third self-circulation drive; 3-secondary dehumidifier; 4-compressor; 5-first-level drive; 6-first self-circulation drive; 7-one Stage dehumidifier; 8-refrigeration drive; 9-second self-circulation drive; 10-first-stage regenerator; 11-second condenser; 12-second evaporator; 13-absorber; 14-regeneration drive 15-generator; 16-solution heat exchanger; 17-solution driver; 18-heat exchange driver; 19-supplementary driver; 20-heat supplement; 21-first condenser; 23-secondary regenerator; 24-throttle valve; 25-fourth self-circulation drive; 26-secondary drive; 27-heat exchange; 28-condensation heat exchanger; 29-evaporation heat exchanger; 30 - absorption heat exchanger; 31 - generating heat exchanger.

Detailed ways

In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the embodiments of the application described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear" etc. are based on the orientation or position shown in the drawings relation. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

Moreover, some of the above terms may be used to indicate other meanings besides orientation or positional relationship, for example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in this application according to specific situations.

Furthermore, the terms "disposed", "connected", and "fixed" are to be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connectivity between components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to accompanying drawing 1 and in combination with embodiments. Fig. 1 is a schematic structural diagram of a dehumidification system provided by the present invention.

The present invention provides a dehumidification system, including a multi-stage dehumidification subsystem and a plurality of heat pump subsystems coupled to each other; the multi-stage dehumidification subsystem corresponds to a plurality of heat pump subsystems; each of the heat pump Each subsystem provides heat and cooling to the corresponding dehumidification subsystem.

By setting up multi-stage dehumidification subsystems for dehumidification, gradient dehumidification and repeated dehumidification can be performed. After the dehumidification effect of multi-stage dehumidification subsystems is superimposed, the dehumidification rate can be improved, the dehumidification effect can be improved, and the thoroughness of dehumidification can be achieved. The heat pump subsystems are in one-to-one correspondence with the multi-stage dehumidification subsystems. The heat pump subsystems provide cooling and heat for the corresponding dehumidification subsystems. The dehumidification subsystem uses heat regeneration to ensure the continuous operation of the dehumidification subsystem; the coupling between multiple heat pump subsystems solves the mismatch between the cold and heat of the dehumidification side and the generating side in the dehumidification subsystem, making full use of Cooling heat realizes cascade utilization of energy; matching dehumidifiers and regenerators with different concentrations corresponding to different temperatures of cold heat can effectively reduce energy consumption and save energy.

In some embodiments of the present invention, it includes a primary dehumidification subsystem, a secondary dehumidification subsystem, a main heat pump subsystem, and an auxiliary heat pump subsystem; the auxiliary heat pump subsystem is driven by the heat provided by the main heat pump subsystem The primary dehumidification subsystem includes a primary dehumidifier 7 and a primary regenerator 10, and the secondary dehumidification subsystem includes a secondary dehumidifier 3 and a secondary regenerator 23; the main heat pump subsystem and the The secondary dehumidification subsystem meets the secondary dehumidifier 3, and can perform heat exchange in the secondary dehumidifier 3; the main heat pump subsystem and the secondary dehumidification subsystem meet at the secondary regenerator 23, and heat exchange can be performed in the secondary regenerator 23; the secondary heat pump subsystem and the primary dehumidification subsystem meet at the primary dehumidifier 7, and can be Heat exchange is performed in the dehumidifier 7 ; the secondary heat pump subsystem and the primary dehumidification subsystem meet at the primary regenerator 10 and can perform heat exchange in the primary regenerator 10 .

A two-stage solution dehumidification subsystem is adopted. The first-stage dehumidification subsystem uses a low-concentration dehumidification solution, and the second-stage solution dehumidification subsystem uses a high-concentration dehumidification solution. The higher the concentration of the dehumidification solution, the heat generated by absorbing water vapor and the regeneration of the solution The more energy required. Therefore, the first-level dehumidification subsystem needs a cold source with less cooling capacity to take away the additional heat generated by the solution’s moisture absorption to ensure that the dehumidification capacity of the solution does not decay, and requires a heat source with less heat to regenerate the dehumidification solution to ensure continuous operation of the solution dehumidification system. Therefore, the secondary solution dehumidification subsystem needs a cold source with a large cooling capacity to take away the additional heat generated by the solution’s moisture absorption so as to ensure that the dehumidification capacity of the solution does not decay. A heat source with a large heat is required to regenerate the dehumidification solution to ensure the continuous operation of the solution dehumidification system. . The main heat pump subsystem and auxiliary heat pump subsystem used in this application are coupled with each other. The main heat pump subsystem uses its preheating to drive the auxiliary heat pump subsystem. The regeneration heat is provided by the regenerator, and the other part of the condensation heat is provided to the secondary heat pump subsystem. The medium-grade heat of the secondary heat pump subsystem is used for solution regeneration of the primary dehumidification subsystem, and the cooling capacity is used to maintain the moisture absorption of the primary dehumidification subsystem. ability.

In some embodiments of the present invention, the primary heat pump subsystem includes a compression heat pump subsystem or a thermoelectric heat pump subsystem; the secondary heat pump subsystem includes an adsorption heat pump subsystem or an absorption heat pump subsystem. The main heat pump subsystem chooses a heat pump system that provides high cooling and heat, the auxiliary heat pump subsystem chooses a heat pump system that provides low cooling and heat, and the auxiliary heat pump chooses a heat pump system that can be driven by the waste heat of the main heat pump. The coupling between the two heat pump subsystems facilitates the distribution of cold and heat in the overall dehumidification system.

In some embodiments of the present invention, the main heat pump subsystem is a compression heat pump subsystem, and the secondary heat pump subsystem is an absorption heat pump subsystem; the compression heat pump subsystem includes a first condenser 21, so The absorption heat pump subsystem includes a generating heat exchanger 31, and the first condenser 21 is connected to the generating heat exchanger 31 through a heat exchange element 27 and can perform heat exchange. The compression heat pump subsystem is relatively stable in operation, and provides large and stable cooling and heat. The absorption heat pump subsystem can be driven by waste heat, and can generate cold and heat to meet the cooling and heat requirements of the primary dehumidification subsystem; The heat exchange between the first condenser 21 and the generating heat exchanger 31 through the heat exchange element 27 can realize the coupling of the two heat pump subsystems, that is, 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 present invention, both the primary dehumidification subsystem and the secondary dehumidification subsystem are semi-permeable membrane solution dehumidification subsystems; the concentration of the solution in the primary dehumidification subsystem is less than the The concentration of the solution in the secondary dehumidification subsystem. The primary dehumidification subsystem uses a low-concentration dehumidification solution, and the secondary solution dehumidification subsystem uses a high-concentration dehumidification solution. The higher the concentration of the dehumidification solution, the more heat generated by absorbing water vapor and the energy required for solution regeneration. Therefore, the first-level dehumidification subsystem needs a cold source with less cooling capacity to take away the additional heat generated by the solution’s moisture absorption to ensure that the dehumidification capacity of the solution does not decay, and requires a heat source with less heat to regenerate the dehumidification solution to ensure continuous operation of the solution dehumidification system. Therefore, the secondary solution dehumidification subsystem needs a cold source with a large cooling capacity to take away the additional heat generated by the solution’s moisture absorption so as to ensure that the dehumidification capacity of the solution does not decay. A heat source with a large heat is required to regenerate the dehumidification solution to ensure the continuous operation of the solution dehumidification system. . The solution in the primary dehumidification subsystem and the secondary dehumidification subsystem is preferably lithium bromide solution.

In some embodiments of the present invention, the primary dehumidification subsystem further includes a primary drive 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 first-level dehumidification solution channel is connected with the inlet of the first-level regeneration solution channel through a pipeline, and the outlet of the first-level regeneration solution channel is connected with the inlet of the first-level dehumidification solution channel through a pipeline, The primary driving member 5 is arranged on the pipeline between the primary dehumidification solution channel and the primary regeneration solution channel.

In some embodiments of the present invention, the primary dehumidification subsystem further includes a first self-circulation drive 6 and a second self-circulation drive 9; the outlet and inlet of the primary dehumidification solution channel pass through the pipeline and the The first self-circulation drive member 6 communicates; the outlet and inlet of the primary regeneration solution channel communicate with the second self-circulation drive member 9 through a pipeline.

In the first-level dehumidification subsystem, the outlet of the first self-circulation drive 6 is connected to the inlet of the first-level dehumidification solution channel of the first-level dehumidifier 7, and the outlet of the first-level dehumidification solution channel is divided into two paths, one of which is connected to the first self- The inlet of the circulation driver 6 realizes the self-circulation of the solution; the other is connected to the inlet of the primary regeneration solution channel of the primary regenerator 10, and the outlet of the second self-circulation driver 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 drive part 9 to realize the self-circulation of the solution; the other path is connected to the inlet of the primary drive part 5, and the The outlet and the outlet of the first self-circulation driver 6 are jointly connected to the inlet of the primary dehumidification solution channel of the primary dehumidifier 7 to realize a complete dilute solution circulation. Among them, the primary dehumidifier 7 and the primary regenerator 10 are both semi-permeable membrane heat and mass transfer containers. The first-level dehumidification solution channel, the first-level regeneration solution channel is formed between the semi-permeable membrane of the first-level regenerator 10 and the heat exchange copper tube; the air flows outside the semi-permeable membrane, and because the semi-permeable membrane only allows water molecules to pass through, the air is isolated Direct contact with the solution does not affect the dehumidification and regeneration performance of the solution. A primary dehumidification refrigerant channel is formed in the heat exchange copper tube of the primary dehumidifier 7, a primary regeneration refrigerant channel is formed in the heat exchange copper tube of the primary regenerator 10, and the primary dehumidification refrigerant channel and the primary regeneration refrigerant channel are used for Circulating refrigerant, that is, liquid water used to circulate the absorption heat pump subsystem, the refrigerant in the primary dehumidification refrigerant channel and the solution in the primary dehumidification solution channel can exchange heat, the refrigerant in the primary regeneration refrigerant channel and the primary regeneration The solution in the solution channel can exchange heat, which will be described in detail when the absorption heat pump subsystem is introduced below, and will not be repeated here.

In some embodiments of the present invention, the secondary dehumidification subsystem further includes a secondary driver 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 dehumidification solution channel communicates with the inlet of the secondary regeneration solution channel through a pipeline, and the outlet of the secondary regeneration solution channel communicates with the inlet of the secondary dehumidification solution channel through a pipeline The secondary drive member 26 is arranged on the 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 includes a third self-circulation drive member 2 and a fourth self-circulation drive member 25; the outlet and inlet of the secondary dehumidification solution channel pass through the pipeline and the The third self-circulation drive member 2 is communicated; the outlet and inlet of the secondary regeneration solution channel are communicated with the fourth self-circulation drive member 25 through pipelines.

In the secondary dehumidification subsystem, the outlet of the third self-circulation drive part 2 is connected to the inlet of the secondary dehumidification solution channel of the secondary dehumidifier 3, and the outlet of the secondary dehumidification solution channel is divided into two paths, one of which is connected to the third self-circulation The inlet of the circulation driver 2 realizes the self-circulation of the solution; the other is connected to the inlet of the secondary regeneration solution channel of the secondary regenerator 23, and the outlet of the fourth self-circulation driver 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 roads, one road is connected to the entrance of the fourth self-circulation driving part 25 to realize the self-circulation of the solution; the other road is connected to the entrance of the secondary driving part 26, the The outlet and the outlet of the third self-circulation driver 2 are jointly connected to the inlet of the secondary dehumidification solution channel of the secondary dehumidifier 3 to realize a complete dilute solution circulation. Among them, the secondary dehumidifier 3 and the secondary regenerator 23 are both semi-permeable membrane heat and mass transfer containers, and the semi-permeable membrane contains heat-exchanging copper tubes. The secondary dehumidification solution channel, the secondary regeneration solution channel is formed between the semi-permeable membrane of the secondary regenerator 23 and the heat exchange copper tube; the air flows outside the semi-permeable membrane, because the semi-permeable membrane only allows water molecules to pass through, thus isolating the air Direct contact with the solution does not affect the dehumidification and regeneration performance of the solution. The heat exchange copper tube of the secondary dehumidifier 3 forms a secondary dehumidification refrigerant channel, the heat exchange copper tube of the secondary regenerator 23 forms a secondary regenerative refrigerant channel, and the secondary dehumidification refrigerant channel and the secondary regenerative refrigerant channel are used for Circulating refrigerant, that is, liquid water used to circulate the absorption heat pump subsystem, the refrigerant in the secondary dehumidification refrigerant channel and the solution in the secondary dehumidification solution channel can exchange heat, the refrigerant in the secondary regeneration refrigerant channel and the secondary regeneration The solution in the solution channel can exchange heat, which will be described in detail when the absorption heat pump subsystem is introduced below, and will not be repeated here.

In some embodiments of the present invention, the compression heat pump subsystem further includes a compressor 4, a solenoid valve 22, and a throttle valve 24; the secondary dehumidifier 3 is provided with a secondary dehumidification refrigerant channel, and the secondary The regenerator 23 is provided with a secondary regeneration refrigerant channel; the exhaust port of the compressor 4 is respectively connected with the inlet of the first condenser 21 and the inlet of the secondary regeneration refrigerant channel, and the first condenser 21 The outlet of the secondary regenerative refrigerant channel communicates with one end of the connecting pipeline, the other end of the connecting pipeline communicates with the inlet of the secondary dehumidifying refrigerant channel, and the outlet of the secondary dehumidifying refrigerant channel It communicates with the suction port of the compressor 4; the solenoid valve 22 is set on the pipeline between the exhaust port of the compressor 4 and the inlet of the secondary regenerative refrigerant channel, and the throttle valve 24 is set on the connecting pipe. The compression heat pump subsystem runs through the secondary dehumidifier 3 and the secondary regenerator 23 respectively. The heat exchange copper tubes forming the secondary regenerative refrigerant channel in the secondary regenerator 23 are used as the condenser of the compression heat pump subsystem to release heat. , the heat exchange copper tube forming the secondary dehumidification refrigerant channel in the secondary dehumidifier 3 is used as the evaporator of the compression heat pump subsystem to absorb heat; at the same time, the first condenser 21 is also used as a condenser, and it is connected with the secondary regenerator 23 In parallel connection, the high-temperature and high-pressure gas compressed by the compressor 4 is divided into two condensers, and the heat in the first condenser 21 is transferred to the absorption heat pump subsystem as waste heat through the heat exchange element 27, and drives it. The coupling between two heat pump subsystems is realized; the compression heat pump subsystem is preferably a carbon dioxide transcritical heat pump system.

In some embodiments of the present invention, the absorption heat pump subsystem further includes 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 evaporative 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 located at the generating The absorption heat exchanger 30 is arranged in the absorber 13 and the two can exchange heat, and the condensation heat exchanger 28 is arranged in the second condenser 11 and the two can exchange heat, the evaporative heat exchanger 29 is located in the second evaporator 12 and the two can exchange heat; The inlet of the passage is connected through a pipeline, the outlet of the first-stage dehumidification refrigerant passage is connected with the inlet of the evaporative heat exchanger 29 through a pipe, and the pipe between the first-stage dehumidification refrigerant passage and the evaporative heat exchanger 29 A dehumidification driver is provided on the road; the outlet of the absorption heat exchanger 30 is connected with the inlet of the condensation heat exchanger 28 through a pipeline, and the outlet of the condensation heat exchanger 28 is connected with the inlet of the primary regenerative refrigerant passage. The outlet of the primary regenerative refrigerant channel is connected with the inlet of the absorption heat exchanger 30 through a pipeline, and the pipeline between the absorption heat exchanger 30 and the condensation heat exchanger 28, the The pipeline between the condensing heat exchanger 28 and the first-stage regenerative refrigerant channel or the pipeline between the first-stage regenerative refrigerant channel and the absorption heat exchanger 30 is provided with a regenerative driving member 14; the generator 15 , the second condenser 11, the second evaporator 12 and the absorber 13 are connected in sequence, and the generator 15 and the absorber 13 are bidirectionally connected through the solution heat exchanger 16, and the generator A solution driver 17 is provided on the pipeline between the device 15 and the absorber 13 .

The absorption heat pump subsystem structure includes three water circulation systems, a solution circulation system and a refrigerant water circulation system, wherein the first water circulation system is the water circulation between the heat exchange element 27 and the heat exchanger 31, and the second water circulation system is The absorption heat exchanger 30 , the condensing heat exchanger 28 , the first-stage regenerative refrigerant channel and the regenerative drive member 14 are connected in sequence through pipelines to form a closed water circulation loop. The third water circulation system is that the evaporative heat exchanger 29, the first-stage dehumidification refrigerant channel and the dehumidification driving part 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 part 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, evaporator and absorber 13 are sequentially connected through pipelines to form a refrigerant water system.

In some embodiments of the present invention, the absorption heat pump subsystem further includes a cold water radiation end coil 1; the outlet of the primary dehumidification refrigerant channel communicates with the inlet of the cold water radiation end coil 1, and the cold water The outlet of the radiant end coil 1 communicates with the inlet of the evaporative heat exchanger 29 ; a refrigeration drive 8 is provided on the pipeline between the cold water radiant end coil 1 and the evaporative heat exchanger 29 . A cold water radiation end coil 1 is added to the third water circulation system, and the cold water therein can be used for refrigeration.

In some embodiments of the present invention, the heat exchange element 27 is a heat exchange box, and the heat exchange box communicates with the generator heat exchanger 31 in two directions through pipelines, and the heat exchange box communicates with the generator heat exchanger 31 A heat exchange driver 18 is provided on the pipeline between the devices 31 . Driven by the heat exchange driver 18, the water in the heat exchange box flows into the generator heat exchanger 31 with the heat released by the first condenser 21, transfers the heat to the solution in the generator 15, and returns to In the heat exchange box, in the process of completing the first water circulation system, the heat transfer between the two heat pump subsystems is realized.

In some embodiments of the present invention, it also includes a heat supplement 20 with a self-heating function, the inlet of the heat supplement 20 communicates with a pipeline between the heat exchange box and the generating heat exchanger 31, The outlet of the heat supplement 20 communicates with another pipeline between the heat exchange box and the heat exchanger 31; the heat supplement 20 communicates with the heat exchange box and the heat exchanger 31 Supplementary driving parts 19 are provided on the pipelines between the pipelines. The heat supplement 20 can provide more heat for the absorption heat pump subsystem, ensure its stable driving and provide the cold heat required by the primary dehumidification subsystem. The hot water outlet of the heat supplementary part 20 is connected to the outlet of the heat exchange box through the supplementary driving part 19, and is connected to the inlet of the generating heat exchanger 31 through the heat exchanging driving part 18, and the outlet of the generating heat exchanger 31 is divided into two paths, one of which is It is connected to the inlet of the heat exchange box, and the other is connected to the inlet of the heat supplement 20.

In some embodiments of the present invention, the heat supplement 20 may be an electric water heater or a solar water heater. Electric water heaters can provide hot water and heat stably, while being easy to control, and solar water heaters use renewable energy to reduce energy consumption.

The third self-circulation drive, the primary drive, the first self-circulation drive, the cooling drive, the second self-circulation drive, the regenerative drive, the solution drive, the heat exchange drive, the supplementary The driving part, the fourth self-circulating driving part and the secondary driving part can all be selected from circulating pumps.

The working principle of the dehumidification system provided by the application is described in detail below:

Fresh air (air to be treated) first enters the primary dehumidification subsystem, and performs heat and mass exchange with the dehumidification solution flowing down from the top of the primary dehumidifier 7; the low-temperature chilled water flowing out of the evaporative heat exchanger 29 in the absorption heat pump subsystem The heat-exchanging copper pipes in the dehumidifier 7 cool down the dehumidification solution flowing down from the top, so as to take away the heat in the process of heat and mass exchange between the dehumidification solution and the air, and enhance the dehumidification capacity of the solution in the primary dehumidification subsystem. The fresh air after preliminary treatment enters the secondary dehumidification subsystem, and performs heat and mass exchange with the dehumidification solution flowing from the top of the secondary dehumidifier 3; the refrigerant in the compression heat pump subsystem is in the heat exchange copper tube built in the secondary dehumidifier 3 The evaporative phase change absorbs heat and cools the dehumidification solution flowing down from the top, so as to take away the heat in the process of heat and mass exchange between the dehumidification solution and the air, and enhance the dehumidification capacity of the solution in the secondary dehumidification subsystem. The fresh air after two-stage dehumidification reaches the air supply state and is sent into the room.

At the same time, the return air enters from the secondary regenerator 23 of the secondary dehumidification subsystem, and exchanges heat and mass with the dehumidification solution flowing down from the top of the secondary regenerator 23 . The secondary regenerator 23 is not only a solution regenerator, but also a condenser in the compression heat pump subsystem. Part of the refrigerant in the compression heat pump subsystem is cooled in the heat exchange copper tube built in the secondary regenerator 23. The dehumidification solution is heated to increase the driving force of heat and mass exchange between the solution and the return air, realize the regeneration of the solution and improve the regeneration effect. After the return air flows out from the secondary regenerator 23 , its temperature rises and continues to enter the primary regenerator 10 of the primary dehumidification subsystem, where it exchanges heat and mass with the dehumidification solution flowing down from the top of the primary regenerator 10 . The dehumidification solution of the first-stage dehumidification subsystem flows in the semi-permeable membrane of the first-stage regenerator 10, and is heated and regenerated by the mid-grade heat from the absorber 13 and the condenser at the same time. At the same time, the high-temperature return air will also heat the dehumidification solution in the semipermeable membrane of the primary regenerator 10, and the two heat sources jointly realize the regeneration of the solution in the primary dehumidification subsystem.

When the two-stage dehumidification subsystem is working, most of the solution at the bottom of the dehumidifier is sent to the top by the self-circulation drive of the dehumidifier as the circulating solution in the dehumidifier, and exchanges heat and mass with the fresh air; the rest of the solution flows out from the bottom of the dehumidifier into the dehumidifier. The regenerator performs solution regeneration, and most of the solution at the bottom of the regenerator is sent to the top of the regenerator from the circulation driving part as the circulating solution in the regenerator, and is heated by the heat source for regeneration; the rest of the solution flows out from the bottom of the regenerator and is sent into the regenerator by the driving part in the dehumidifier.

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 and undergoes a phase change to absorb the heat of the solution in the secondary dehumidification solution channel, and the low-temperature and low-pressure refrigerant gas is absorbed Compressor 4 is compressed into high-temperature and high-pressure gas, and a part of high-temperature and high-pressure gas enters the secondary regeneration refrigerant channel of secondary regenerator 23 through solenoid valve 22 to cool down and heat and regenerate the dehumidification solution. Another part of high temperature and high pressure gas enters the first condenser 21 to heat the liquid water in the heat exchange box.

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 passes through the solution heat exchanger 16 and The dilute solution is cooled by heat exchange, that is, the heat flows back into the absorber 13 again. The concentrated solution absorbs the refrigerant water vapor in the absorber 13 and releases heat to heat the circulating water in the absorption heat exchanger 30 . The high-temperature refrigerant water vapor generated by the concentrated solution in the generator 15 enters the second condenser 11, condenses into liquid refrigerant water and releases heat, and the heat released flows from the absorption heat exchanger 30 to the condensation heat exchanger 28 of circulating water. The medium-grade hot water flowing out of the condensing heat exchanger 28 enters the primary regeneration refrigerant channel of the primary 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, and the refrigerant water vapor is absorbed by the concentrated solution in the absorber 13 . Complete a refrigerant water and lithium bromide solution circulation system.

The evaporation process in the second evaporator 12 cools the circulating water in the evaporation heat exchanger 29 to become chilled water. The chilled water first flows through the first-stage dehumidification refrigerant channel in the first-stage dehumidifier 7 to cool the dehumidification solution, then enters the cold water radiation end coil 1 to remove the indoor sensible heat load, and then enters the evaporative heat exchanger 29 through the cooling drive unit 8 It is then cooled to form a complete water circulation loop.

Based on the same inventive idea, the present invention also provides an air conditioning system, including the dehumidification system.

It should be noted that in this article, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these No such actual relationship or order exists between entities or operations.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (16)

1. a kind of dehumidification system, which is characterized in that including multistage dehumidifying subsystem and multiple heat pump subsystems coupled each other；

The multistage dehumidifying subsystem and multiple heat pump subsystems correspond；

Each heat pump subsystem is that the corresponding dehumidifying subsystem provides heat and cooling capacity.

2. a kind of dehumidification system according to claim 1, which is characterized in that including level-one dehumidifying subsystem, second level dehumidifying Subsystem, main heat pump subsystem and secondary heat pump subsystem；

The pair heat pump subsystem is driven using the heat that the main heat pump subsystem provides；

The level-one dehumidifying subsystem includes level-one dehumidifier (7) and level-one regenerator (10), the second level dehumidifying subsystem packet Include second level dehumidifier (3) and secondary regenerator device (23)；

The main heat pump subsystem and second level dehumidifying subsystem are intersected in the second level dehumidifier (3), and can be in described two Heat exchange is carried out in grade dehumidifier (3)；The main heat pump subsystem and second level dehumidifying subsystem are intersected in the second level again Raw device (23), and can be in progress heat exchange in the secondary regenerator device (23)；The pair heat pump subsystem and the level-one dehumidify Subsystem is intersected in the level-one dehumidifier (7), and can be in progress heat exchange in the level-one dehumidifier (7)；The pair heat pump Subsystem and level-one dehumidifying subsystem are intersected in the level-one regenerator (10), and can be in the level-one regenerator (10) Carry out heat exchange.

3. a kind of dehumidification system according to claim 2, which is characterized in that the main heat pump subsystem includes compression type heat Pump subsystem or thermo-electric heat pump subsystem；The pair heat pump subsystem includes adsorption type heat pump subsystem or absorption heat pump System.

4. a kind of dehumidification system according to claim 3, which is characterized in that the main heat pump subsystem is compression heat pump Subsystem, the pair heat pump subsystem is absorption heat pump subsystem；

The compression heat pump subsystem includes the first condenser (21), and the absorption heat pump subsystem includes that heat exchanger occurs (31), first condenser (21) is connect and can be exchanged heat by heat exchanging piece (27) with the generation heat exchanger (31).

5. dehumidification system according to claim 2, which is characterized in that the level-one dehumidifying subsystem and second level dehumidifying Subsystem is semi-transparent membrane type dehumidifying subsystem；

The concentration of solution in the level-one dehumidifying subsystem is less than the concentration of the solution in second level dehumidifying subsystem.

6. dehumidification system according to claim 2, which is characterized in that the level-one dehumidifying subsystem further includes level-one driving Part (5)；The level-one dehumidifier (7) is equipped with level-one dehumidification solution channel, and it is molten that the level-one regenerator (10) is equipped with level-one regeneration Liquid channel；

The outlet in level-one dehumidification solution channel and the entrance in level-one actified solution channel are by pipeline connection, and described one The outlet in grade actified solution channel passes through pipeline connection, the level-one actuator with the entrance in level-one dehumidification solution channel (5) it is set on the pipeline of level-one dehumidification solution channel and the level-one actified solution interchannel.

7. dehumidification system according to claim 6, which is characterized in that level-one dehumidifying subsystem further includes first from following Ring actuator (6) and the second self-loopa actuator (9)；

The outlet in level-one dehumidification solution channel is connected to by pipeline with the first self-loopa actuator (6) with entrance；Institute The outlet for stating level-one actified solution channel is connected to by pipeline with the second self-loopa actuator (9) with entrance.

8. dehumidification system according to claim 2, which is characterized in that the second level dehumidifying subsystem further includes secondary drive Part (26)；The second level dehumidifier (3) is equipped with second level dehumidification solution channel, and it is molten that the secondary regenerator device (23) is equipped with secondary regenerator Liquid channel；

The outlet in second level dehumidification solution channel and the entrance of the secondary regenerator solution channel are by pipeline connection, and described two The outlet in grade actified solution channel passes through pipeline connection, the secondary drive part with the entrance in second level dehumidification solution channel (26) it is set on the pipeline between second level dehumidification solution channel and the secondary regenerator solution channel.

9. dehumidification system according to claim 8, which is characterized in that the second level dehumidifying subsystem further includes that third is followed certainly Ring actuator (2) and the 4th self-loopa actuator (25)；

The outlet in second level dehumidification solution channel is connected to by pipeline with the third self-loopa actuator (2) with entrance；Institute The outlet for stating secondary regenerator solution channel is connected to by pipeline with the 4th self-loopa actuator (25) with entrance.

10. dehumidification system according to claim 4, which is characterized in that the compression heat pump subsystem further includes compression Machine (4), solenoid valve (22), throttle valve (24)；The second level dehumidifier (3) is equipped with second level dehumidifying refrigerant passage, and the second level is again Raw device (23) are equipped with secondary regenerator refrigerant passage；

The exhaust outlet of the compressor (4) respectively with the entrance and the secondary regenerator refrigerant passage of first condenser (21) Entrance connection, first condenser (21) outlet and the secondary regenerator refrigerant passage outlet respectively with connecting line One end connection, the entrance of the other end of the connecting line and the second level dehumidifying refrigerant passage is connected to, and the second level dehumidifies The outlet of refrigerant passage is connected to the air entry of the compressor (4)；

The solenoid valve (22) is set to the pipe between the exhaust outlet of the compressor (4) and the entrance of the secondary regenerator refrigerant passage On the road, the throttle valve (24) is set on the connecting line.

11. dehumidification system according to claim 4, which is characterized in that the absorption heat pump subsystem further includes occurring Device (15), absorber (13), the second condenser (11), the second evaporator (12), absorption heat-exchange device (30), condensing heat exchanger (28), evaporative condenser and solution heat exchanger (16)；The level-one dehumidifier (7) is equipped with level-one dehumidifying refrigerant passage, described Level-one regenerator (10) is equipped with level-one and regenerates refrigerant passage；

The generation heat exchanger (31) is set in the generator (15) and the two can exchange heat, the absorption heat-exchange device (30) In the absorber (13) and the two can exchange heat, and the condensing heat exchanger (28) is set to second condenser (11) Interior and the two can exchange heat, and the evaporating heat exchanger (29) is set in second evaporator (12) and the two can be changed Heat；

The outlet of the evaporating heat exchanger (29) and the entrance of level-one dehumidifying refrigerant passage pass through pipeline connection, the level-one The outlet of dehumidifying refrigerant passage and the entrance of the evaporating heat exchanger (29) pass through pipeline connection, the level-one dehumidifying refrigerant passage Pipeline between the evaporating heat exchanger (29) is equipped with dehumidifying actuator；

By pipeline connection, the condensation is changed for the outlet of the absorption heat-exchange device (30) and the entrance of the condensing heat exchanger (28) The entrance of the outlet of hot device (28) and level-one regeneration refrigerant passage passes through pipeline connection, the level-one regeneration refrigerant passage Outlet and the entrance of the absorption heat-exchange device (30) pass through pipeline connection, the absorption heat-exchange device (30) and the condensing heat exchanger (28) on the pipeline between, the condensing heat exchanger (28) and the level-one regeneration refrigerant passage between pipeline on or the level-one again Pipeline between raw refrigerant passage and the absorption heat-exchange device (30) is equipped with regenerative drives part (14)；

The generator (15), second condenser (11), second evaporator (12) and the absorber (13) are successively Connection, the generator (15) and the absorber (13) pass through the solution heat exchanger (16) diconnected；The generation Pipeline between device (15) and the absorber (13) is equipped with solution actuator (17).

12. dehumidification system according to claim 11, which is characterized in that the absorption heat pump subsystem further includes cold water Radiation tail end coil pipe (1)；The outlet of the level-one dehumidifying refrigerant passage and the entrance of the cold water radiation tail end coil pipe (1) connect Logical, the outlet of the cold water radiation tail end coil pipe (1) is connected to the entrance of the evaporating heat exchanger (29)；Cold water radiation end Pipeline between end plate pipe (1) and the evaporating heat exchanger (29) is equipped with refrigeration actuator (8).

13. dehumidification system according to claim 4, which is characterized in that the heat exchanging piece (27) is heat exchange box, the heat exchange Case and the generation heat exchanger (31) pass through pipeline diconnected, the heat exchange box and the pipeline occurred between heat exchanger (31) It is equipped with heat exchange actuator (18).

14. dehumidification system according to claim 13, which is characterized in that further include the hot refilling member with self heating function (20), the entrance and the heat exchange box of the hot refilling member (20) and the pipeline connection occurred between heat exchanger (31), The outlet of the hot refilling member (20) and the heat exchange box and another pipeline connection occurred between heat exchanger (31)；It is described Pipeline between hot refilling member (20) and the heat exchange box and the pipeline occurred between heat exchanger (31) is equipped with supplement actuator (19)。

15. dehumidification system according to claim 14, which is characterized in that the hot refilling member (20) can be electric heater Or solar water heater.

16. a kind of air-conditioning system, which is characterized in that including the described in any item dehumidification systems of claim 1 to 15.