Solution dehumidification air conditioning system based on micro-channel membrane heat exchanger

Abstract

The invention discloses a solution dehumidification air conditioning system based on a micro-channel membrane heat exchanger, and relates to the technical field of air conditioners, the solution dehumidification air conditioning system comprises an introduction module, a humidity detection module and a solution dehumidification module, and further comprises a regeneration module, the device has the advantages that the heat and humidity treatment process can be decoupled through the solution, efficient and low-power-consumption operation of the dehumidification process is achieved, solution dehumidification can be driven by solar energy or waste heat energy, a large amount of electric energy is not consumed, the contact area of the wall faces of the channels is increased through the micro-channels, and therefore the heat transfer area during solution heat exchange is increased, and the heat exchange efficiency is improved. The heat exchange is more sufficient, the energy utilization efficiency of the system is improved, the regeneration module can regenerate the solution in the dilute solution tank, whether the concentration of the solution is higher than a threshold value or not is judged through concentration detection, recycling of the dilute solution is achieved, and the resource utilization rate is improved.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning, and in particular to a solution dehumidification air conditioning system based on a microchannel membrane heat exchanger. Background Art

[0002] Air conditioning, or air conditioner, refers to equipment that uses artificial means to adjust and control the temperature, humidity, flow rate and other parameters of the ambient air in a building or structure. Air conditioning generally includes cold source / heat source equipment, cold and hot medium distribution system, mainly including refrigeration host, water pump, fan and piping system, which specifically handles the air state so that the air parameters of the target environment meet certain requirements. Air conditioning is an indispensable part of people's modern life. Air conditioning provides people with coolness and warmth, but at the same time, it is easy to cause diseases if the air conditioning is often turned on, such as "air conditioning disease", so it needs to be used with caution;

[0003] Traditional air conditioners adopt the operation mode of heat and humidity combined treatment, mainly relying on the air conditioner to cool down to the dew point temperature to realize the air dehumidification process. Heat and humidity cannot be controlled independently, resulting in huge energy consumption. The solution dehumidification air conditioning system can decouple the heat and humidity load, realize independent control and processing, and reduce energy consumption. At present, the solution dehumidification technology mostly adopts the falling film structure, and the solution is in direct contact with the air to realize the dehumidification and regeneration process, but this will make the separation degree of solution and air low, resulting in the problem of air carrying liquid. The solution contained in the air may cause certain corrosion to objects such as furniture in the building, thereby causing unnecessary losses. In addition, the internal cooling structure in the solution dehumidification process and the internal heating structure in the regeneration process can effectively improve the dehumidification and regeneration performance, while the heat exchange efficiency of the coil heat exchanger in the current falling film contactor is low, which makes the contactor larger and its versatility is limited. Therefore, in order to solve the problem of liquid carrying in the solution dehumidification air and the problems of low heat exchange efficiency and large size of the contactor, we propose a solution dehumidification air conditioning system based on a microchannel membrane heat exchanger. Summary of the invention

[0004] The object of the present invention is to provide a solution dehumidification air conditioning system based on a microchannel membrane heat exchanger.

[0005] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: a solution dehumidification air conditioning system based on a microchannel membrane heat exchanger, comprising an introduction module, a humidity detection module and a solution dehumidification module;

[0006] The introduction module collects the wet air and introduces the wet air into the solution dehumidification module;

[0007] A humidity detection module is used to detect the humid air before it is led to the dehumidification module;

[0008] The solution dehumidification module includes a porous membrane layer, a cooling water channel and a solution dehumidifier channel. The solution dehumidifier channel is arranged on both sides of the cooling water channel. The other sides of the two solution dehumidifier channels are covered with porous membranes to limit the flow of the solution in the channel. Then, two solution dehumidifier channels and one cooling water channel form a dehumidification group. The air channel is in the middle of the two dehumidification groups. Then, they are arranged in sequence and spaced apart to form a dehumidification plate.

[0009] Solution dehumidification module: humid air flows through the dehumidification module to remove water vapor in the humid air and achieve air dehumidification. The humid air contacts the porous membrane in the solution dehumidification module. Driven by the steam partial pressure difference, the water vapor in the air passes through the porous membrane into the solution and is absorbed by the solution dehumidifier. The porous membrane is a liquid-resistant and breathable PTFE membrane that can block the passage of large molecular solutions and only allow small water vapor molecules to pass through, achieving selective permeation. After the solution absorbs water vapor, it will release a large amount of heat. The module aggregate cooling water can take away the heat in time, maintain the water vapor partial pressure difference between the solution and the air, and achieve continuous and efficient dehumidification.

[0010] The cooling water flow channel and dehumidifier flow channel in the solution dehumidification module are microchannels. The microchannel structure is used to increase the heat transfer area of ​​the solution during heat exchange, making the heat exchange between the solution and the cooling water wall more sufficient, thereby timely taking away the heat released by the solution absorbing moisture in the air, which is conducive to the continuous dehumidification process.

[0011] As a further solution of the present invention: it also includes a regeneration module, a membrane microchannel solution regeneration module, which has the same structure as the dehumidification module, and includes a porous membrane layer, a regeneration solution flow channel and a heat source flow channel. After being heated by solar energy and exhaust gas heat energy to form a high-temperature heat source, it enters the heat source flow channel of the regeneration module, and uses the microchannel heat exchanger heat source to heat the solution. After the water vapor in the solution is precipitated and passes through the porous membrane layer, it is taken away by the flowing air.

[0012] The regeneration module can regenerate the solution in the dilute solution tank, detect the concentration of the regenerated solution, analyze the concentration information of the solution again, and determine whether the solution is higher than the concentration threshold;

[0013] When the concentration of the solution is higher than the concentration threshold, the corresponding solution is transferred to the concentrated solution tank;

[0014] When the concentration of the solution is lower than the concentration threshold, the corresponding solution is regenerated.

[0015] As a further solution of the present invention: the heating unit in the solution dehumidification module includes a solar drive function and a waste heat drive function, the solar drive function and the waste heat drive function are separately set and connected to the solution dehumidification module in series, and a priority is set for the solar drive function, and the solar drive function is preferentially used to transfer heat energy to the heat transfer medium, and an auxiliary heat threshold is added at the position where the waste heat drive function is connected to the series energy transfer chain, and the auxiliary heat threshold is set to F 热 , assuming that the heat energy provided by the solar drive function is T 驱 , assuming that the heat energy provided by the waste heat drive function is F 驱 ;

[0016] F 驱 +T 驱 ≥F 热

[0017] When T 驱 ≥F 热 When the waste heat drive function is not activated, F 驱 The heat energy required is 0;

[0018] When T 驱 <F 热 When the waste heat drive function is activated, the difference between the heat energy provided by the solar drive function and the auxiliary heating threshold is calculated, and then the waste heat drive function is used to make up the difference. At this time, T 驱 The heat energy required is F 热 -T 驱 .

[0019] As a further solution of the present invention: the solar energy driving function and the waste heat driving function also need to consider the heat energy loss of the heat transfer medium when transferring heat energy, so as to ensure that the temperature of the initial solution can reach the specified temperature. Assume that the heat energy loss ratio of different heat transfer media is R X , let N be the number of heat transfer medium heat energy loss ratio, let R be the heat required for the heat transfer medium to heat the initial solution to a specified temperature 热 ;

[0020]

[0021] The heat energy provided by the solar drive function can be calculated using the above formula.

[0022] As a further solution of the present invention: the concentration limit range of the solution in the solution dehumidification module is 20%-50%, and the solution concentration limit range is divided into a low concentration interval and a high concentration interval. When the set concentration threshold is 35%, the solution concentration range in the low concentration interval is 20%-35%, excluding 35%, and the solution concentration range in the high density interval is 35%-50%.

[0023] As a further solution of the present invention: after obtaining the regenerated solution, the regeneration module needs to detect the concentration of the solution, and then compare the concentration of the regenerated solution with the concentration threshold to check whether the concentration of the regenerated solution is higher than the concentration threshold;

[0024] When the concentration of the regenerated solution is higher than the concentration threshold, the corresponding batch of regenerated concentrated solution is injected into the concentrated solution tank;

[0025] When the concentration of the regenerated solution is lower than the concentration threshold, the concentration of the regenerated solution is detected, the concentration difference between the solution concentration and the concentration threshold is calculated, and then the relatively regenerated solution is injected into the regeneration module to regenerate the regenerated solution again.

[0026] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. The present invention can decouple the heat and moisture treatment process through the solution to achieve high efficiency and low power consumption operation of the dehumidification process. The solution dehumidification can be driven by solar energy or waste heat energy without consuming a large amount of electricity. The microchannel is used to increase the contact area of ​​the channel wall, thereby increasing the heat transfer area during the solution heat exchange, making the heat exchange more sufficient and improving the energy utilization efficiency of the system. The regeneration module can regenerate the solution in the dilute solution tank and determine whether the solution concentration is higher than the threshold through concentration detection, thereby realizing the reuse of the dilute solution and improving resource utilization.

[0028] 2. The present invention can preferentially utilize solar energy, a renewable energy source, to provide heat energy for the solution dehumidification module by setting the solar energy drive function, thus greatly reducing the dependence on traditional energy sources. The waste heat drive function can reduce the purchase of additional energy and reduce energy costs. At the same time, for enterprises that generate waste heat, additional economic benefits can be obtained by recycling and utilizing waste heat. When the heat energy provided by the solar energy drive function is insufficient, the waste heat drive function is started to supplement it, ensuring that the system can meet the requirements of heating the initial solution to the specified temperature under various conditions. Considering the heat energy loss ratio of the heat transfer medium, the heat energy provided by the solar energy drive function and the waste heat drive function is accurately calculated;

[0029] 3. The present invention can accurately manage the concentration of the solution through the solution dehumidification module, which helps to ensure the stability and efficiency of the dehumidification process, and can make the classification of the solution clearer, which is convenient for subsequent processing and management. The layered regeneration function divides the low-level, medium-level and high-level concentration increase areas according to different concentration requirements, and can perform targeted regeneration treatment for different concentration differences. This layered design can improve the efficiency of regeneration and avoid excessive or insufficient regeneration. At the same time, the existence of the layered regeneration function provides the system with a variety of regeneration means. Even if one method is not effective in some cases, other methods can be selected to supplement it, thereby enhancing the fault tolerance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of a system flow in an embodiment of the present invention;

[0031] Figure 2 It is a side cross-sectional view of the dehumidifier flow channel in an embodiment of the present invention;

[0032] Figure 3 It is a top cross-sectional view of the dehumidifier flow channel in an embodiment of the present invention;

[0033] Figure 4 It is a front view of the wet agent flow channel in an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0035] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Embodiment 1:

[0037] Therefore, in order to effectively solve the above problems, the present application proposes a solution dehumidification air conditioning system based on a microchannel membrane heat exchanger, as shown in the accompanying drawings of the specification. Figure 1-4 As shown, a solution dehumidification air conditioning system based on a microchannel membrane heat exchanger includes an introduction module, a humidity detection module and a solution dehumidification module;

[0038] The introduction module collects the wet air and introduces the wet air into the solution dehumidification module;

[0039] An airflow regulating device may be provided in the introduction module to automatically adjust the flow rate and flow velocity of the humid air according to parameters such as the humidity and temperature of the humid air, so as to ensure that the humid air can enter the solution dehumidification module in the best state;

[0040] A humidity detection module is used to detect the humid air before it is led to the dehumidification module;

[0041] A real-time monitoring function can be added to continuously monitor the humidity changes during the entire dehumidification process and transmit the monitoring data to the control system so that the dehumidification parameters can be adjusted in time;

[0042] The solution dehumidification module includes a porous membrane layer, a cooling water channel and a solution dehumidifier channel. The solution dehumidifier channel is arranged on both sides of the cooling water channel. The other sides of the two solution dehumidifier channels are covered with porous membranes to limit the flow of the solution in the channel. Then, two solution dehumidifier channels and one cooling water channel form a dehumidification group. The air channel is in the middle of the two dehumidification groups. Then, they are arranged in sequence and spaced apart to form a dehumidification plate.

[0043] Solution dehumidification module: humid air flows through the dehumidification module to remove water vapor in the humid air and achieve air dehumidification. The humid air contacts the porous membrane in the solution dehumidification module. Driven by the steam partial pressure difference, the water vapor in the air passes through the porous membrane into the solution and is absorbed by the solution dehumidifier. The porous membrane is a liquid-resistant and breathable PTFE membrane that can block the passage of large molecular solutions and only allow small water vapor molecules to pass through, achieving selective permeation. After the solution absorbs water vapor, it will release a large amount of heat. The module aggregate cooling water can take away the heat in time, maintain the water vapor partial pressure difference between the solution and the air, and achieve continuous and efficient dehumidification.

[0044] When testing the concentration of the final solution, a multi-parameter testing method can be used. In addition to concentration testing, the pH, conductivity and other parameters of the solution can also be tested to more fully understand the properties of the solution and provide a more accurate basis for subsequent processing;

[0045] The cooling water flow channel and the dehumidifier flow channel in the solution dehumidification module are microchannels. The microchannel structure is used to increase the heat transfer area of ​​the solution during heat exchange, so that the heat exchange between the solution and the cooling water wall surface is more sufficient, thereby timely taking away the heat released by the solution absorbing moisture in the air, which is conducive to the continuous dehumidification process;

[0046] It also includes a regeneration module, a membrane microchannel solution regeneration module, which has the same structure as the dehumidification module, including a porous membrane layer, a regeneration solution flow channel and a heat source flow channel. After being heated by solar energy and exhaust gas heat energy to form a high-temperature heat source, it enters the heat source flow channel of the regeneration module, and uses the microchannel heat exchanger heat source to heat the solution. After the water vapor in the solution is precipitated and passes through the porous membrane layer, it is taken away by the flowing air;

[0047] The regeneration module can regenerate the solution in the dilute solution tank, detect the concentration of the regenerated solution, analyze the concentration information of the solution again, and determine whether the solution is higher than the concentration threshold;

[0048] When the concentration of the solution is higher than the concentration threshold, the corresponding solution is transferred to the concentrated solution tank;

[0049] When the concentration of the solution is lower than the concentration threshold, the corresponding solution is regenerated;

[0050] Specific work flow: introduce the wet air into the solution dehumidification module, test the wet air before introducing it into the solution dehumidification module, receive the wet air, lower the temperature of the solution through heat exchange, heat the initial solution through the heat transfer medium, increase the contact area of ​​the channel wall by using the microchannel when the initial solution is heated by heat exchange, and then use the exchange solution once to dehumidify the wet air, and detect the concentration of the end solution, transfer the end solution to the corresponding solution tank, and then regenerate the solution in the dilute solution tank, so that the regenerated solution is transferred to the concentrated solution tank;

[0051] Furthermore, the solution can be used to decouple the heat and moisture treatment process to achieve efficient and low-power operation of the dehumidification process. The solution dehumidification can be driven by solar energy or waste heat energy without consuming a large amount of electricity. Microchannels are used to increase the contact area of ​​the channel wall, thereby increasing the heat transfer area during solution heat exchange, making the heat exchange more complete and improving the energy utilization efficiency of the system. The regeneration module can regenerate the solution in the dilute solution tank and determine whether the solution concentration is higher than the threshold through concentration detection, thereby realizing the reuse of the dilute solution and improving resource utilization.

[0052] Embodiment 2:

[0053] Based on the first embodiment, as shown in the accompanying drawings of the specification Figure 1-4 As shown, the heating unit in the solution dehumidification module includes a solar energy driving function and a waste heat driving function. The solar energy driving function and the waste heat driving function are set separately and connected to the solution dehumidification module in series. At the same time, a priority is set for the solar energy driving function, and the solar energy driving function is preferentially used to transfer heat energy to the heat transfer medium. An auxiliary heat threshold is added at the position where the waste heat driving function is connected to the series energy transfer chain. The auxiliary heat threshold is set to F 热 , assuming that the heat energy provided by the solar drive function is T 驱 , assuming that the heat energy provided by the waste heat drive function is F 驱 ;

[0054] F 驱 +T 驱 ≥F 热

[0055] When T 驱 ≥F 热 When the waste heat drive function is not activated, F 驱 The heat energy required is 0;

[0056] When T 驱 <F 热 When the waste heat drive function is activated, the difference between the heat energy provided by the solar drive function and the auxiliary heating threshold is calculated, and then the waste heat drive function is used to make up the difference. At this time, T 驱 The heat energy required is F 热 -T 驱 ;

[0057] More efficient solar thermal collectors, such as concentrated solar thermal collectors or new nanomaterial solar thermal collectors, can be used to improve the efficiency of solar energy collection and conversion into thermal energy;

[0058] Combined with solar energy storage technologies, such as phase change material energy storage or thermochemical energy storage, the solar energy collected during the day can be stored for use at night or on cloudy days, improving the stability and reliability of solar-driven functions;

[0059] The solar drive function and the waste heat drive function also need to consider the heat loss of the heat transfer medium when transferring heat energy, so as to ensure that the temperature of the initial solution can reach the specified temperature. Suppose the heat loss ratio of different heat transfer media is R X , let N be the number of heat transfer medium heat energy loss ratio, let R be the heat required for the heat transfer medium to heat the initial solution to a specified temperature 热 ;

[0060]

[0061] The above formula can be used to calculate the heat energy provided by the solar drive function;

[0062] Adopt gas-liquid two-phase flow microchannel heat exchange between dehumidification solution and air, and use the flow of air to enhance the heat transfer effect of the solution;

[0063] Specific work flow: When transferring heat energy to the heat transfer medium, the solar drive function and the waste heat drive function will be set separately, and then connected to the solution dehumidification module in series, and the priority will be set for the solar drive function. When the heat energy provided by the solar drive function is sufficient, there is no need to start the waste heat drive function. When the heat energy provided by the solar drive function is insufficient, the waste heat drive function needs to be started to make up the difference between the heat energy provided by the solar drive function and the auxiliary heat threshold. At the same time, the heat energy loss of the heat transfer medium needs to be considered to calculate the heat energy provided by the solar drive function.

[0064] Furthermore, by setting up the solar drive function, it is possible to give priority to using solar energy, a renewable energy source, to provide heat energy for the solution dehumidification module, greatly reducing dependence on traditional energy sources. Using the waste heat drive function can reduce the purchase of additional energy and reduce energy costs. At the same time, for companies that generate waste heat, they can also obtain additional economic benefits by recycling and utilizing waste heat. When the heat energy provided by the solar drive function is insufficient, the waste heat drive function is started to supplement it, ensuring that the system can meet the requirements of heating the initial solution to the specified temperature under various circumstances. Taking into account the heat energy loss ratio of the heat transfer medium, the heat energy provided by the solar drive function and the waste heat drive function is accurately calculated.

[0065] Embodiment three:

[0066] Based on the second embodiment, as shown in the accompanying drawings of the specification Figure 1-4 As shown, the concentration limit range of the solution in the solution dehumidification module is 20%-50%, and the concentration limit range of the solution is divided into a low concentration interval and a high concentration interval. When the concentration threshold is 35%, the solution concentration range of the low concentration interval is 20%-35%, excluding 35%, and the solution concentration range of the high density interval is 35%-50%;

[0067] Consider introducing a dynamic adjustment mechanism within the concentration range, for example, automatically adjusting the boundary values ​​of the low concentration interval and the high concentration interval according to different environmental conditions such as humidity, temperature, air flow rate, etc. and system operation status to optimize the performance of the solution;

[0068] After obtaining the regenerated solution, the regeneration module needs to detect the concentration of the solution. At this time, the concentration of the regenerated solution is compared with the concentration threshold to check whether the concentration of the regenerated solution is higher than the concentration threshold;

[0069] When the concentration of the regenerated solution is higher than the concentration threshold, the corresponding batch of regenerated concentrated solution is injected into the concentrated solution tank;

[0070] When the concentration of the regenerated solution is lower than the concentration threshold, the concentration of the regenerated solution is detected, the concentration difference between the concentration of the solution and the concentration threshold is calculated, and then the relatively regenerated solution is injected into the regeneration module to regenerate the regenerated solution again;

[0071] Detecting the concentration of the regenerated solution, calculating the concentration difference between the concentration of the regenerated solution and the concentration threshold, injecting the regenerated solution into the corresponding concentration re-increasing area according to the concentration difference, and then regenerating the regenerated solution again until the concentration of the solution is higher than the concentration threshold, and then injecting the solution higher than the concentration threshold into the concentrated solution tank;

[0072] Furthermore, the solution dehumidification module can accurately manage the concentration of the solution, which helps to ensure the stability and efficiency of the dehumidification process, and can make the classification of the solution clearer, facilitating subsequent processing and management. The stratified regeneration function divides the low-level, medium-level and high-level concentration increase areas according to different concentration requirements, and can perform targeted regeneration treatment for different concentration differences. This stratified design can improve the efficiency of regeneration and avoid over-regeneration or under-regeneration. At the same time, the existence of the stratified regeneration function provides the system with a variety of regeneration methods. Even if one method is not effective in some cases, other methods can be selected to supplement it, thereby enhancing the system's fault tolerance.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A solution dehumidification air conditioning system based on a microchannel membrane heat exchanger, characterized in that: It includes an introduction module, a humidity detection module and a solution dehumidification module; An introduction module collects the humid air and introduces the humid air into a solution dehumidification module; A humidity detection module is used to detect the humid air before it is led to the dehumidification module; The solution dehumidification module includes a porous membrane layer, a cooling water channel and a solution dehumidifier channel. The solution dehumidifier channel is arranged on both sides of the cooling water channel. The other sides of the two solution dehumidifier channels are covered with porous membranes to limit the flow of the solution in the channel. Then, two solution dehumidifier channels and one cooling water channel form a dehumidification group. The air channel is in the middle of the two dehumidification groups. Then, they are arranged in sequence and spaced apart to form a dehumidification plate. Solution dehumidification module: humid air flows through the dehumidification module to remove water vapor in the humid air and achieve air dehumidification. The humid air contacts the porous membrane in the solution dehumidification module. Driven by the steam partial pressure difference, the water vapor in the air passes through the porous membrane into the solution and is absorbed by the solution dehumidifier. The porous membrane is a liquid-resistant and breathable PTFE membrane that can block the passage of large molecular solutions and only allow small water vapor molecules to pass through, achieving selective permeation. After the solution absorbs water vapor, it will release a large amount of heat. The module aggregate cooling water can take away the heat in time, maintain the water vapor partial pressure difference between the solution and the air, and achieve continuous and efficient dehumidification. The cooling water flow channel and dehumidifier flow channel in the solution dehumidification module are microchannels. The microchannel structure is used to increase the heat transfer area of ​​the solution during heat exchange, making the heat exchange between the solution and the cooling water wall more sufficient, thereby timely taking away the heat released by the solution absorbing moisture in the air, which is conducive to the continuous dehumidification process.

2. A solution dehumidification air conditioning system based on a microchannel membrane heat exchanger according to claim 1, characterized in that: It also includes a regeneration module and a membrane microchannel solution regeneration module, which have the same structure as the dehumidification module, including a porous membrane layer, a regeneration solution flow channel and a heat source flow channel. After being heated by solar energy and exhaust gas heat energy to form a high-temperature heat source, it enters the heat source flow channel of the regeneration module, and uses the microchannel heat exchanger heat source to heat the solution. After the water vapor in the solution is precipitated and passes through the porous membrane layer, it is taken away by the flowing air. The regeneration module can regenerate the solution in the dilute solution tank, detect the concentration of the regenerated solution, analyze the concentration information of the solution again, and determine whether the solution is higher than the concentration threshold; When the concentration of the solution is higher than the concentration threshold, the corresponding solution is transferred to the concentrated solution tank; When the concentration of the solution is lower than the concentration threshold, the corresponding solution is regenerated.

3. The solution dehumidification air conditioning system based on a microchannel membrane heat exchanger according to claim 1, characterized in that: The heating unit in the solution dehumidification module includes a solar drive function and a waste heat drive function. The solar drive function and the waste heat drive function are set separately and connected to the solution dehumidification module in series. At the same time, a priority is set for the solar drive function, and the solar drive function is preferentially used to transfer heat energy to the heat transfer medium. An auxiliary heat threshold is added at the position where the waste heat drive function is connected to the series energy transfer chain. The auxiliary heat threshold is set to F. 热 , assuming that the heat energy provided by the solar drive function is T 驱 , assuming that the heat energy provided by the waste heat drive function is F 驱 ; F 驱 +T 驱 ≥F 热 When T 驱 ≥F 热 When the waste heat drive function is not activated, F 驱 The heat energy required is 0; When T 驱 <F 热 When the waste heat drive function is activated, the difference between the heat energy provided by the solar drive function and the auxiliary heating threshold is calculated, and then the waste heat drive function is used to make up the difference. At this time, T 驱 The heat energy required is F 热 -T 驱 .

4. A solution dehumidification air conditioning system based on a microchannel membrane heat exchanger according to claim 3, characterized in that: The solar energy driving function and the waste heat driving function also need to consider the heat energy loss of the heat transfer medium when transferring heat energy, so as to ensure that the temperature of the initial solution can reach the specified temperature. Assume that the heat energy loss ratio of different heat transfer media is R X , let N be the number of heat transfer medium heat energy loss ratio, let R be the heat required for the heat transfer medium to heat the initial solution to a specified temperature 热 ; The heat energy provided by the solar drive function can be calculated using the above formula.

5. The solution dehumidification air conditioning system based on a microchannel membrane heat exchanger according to claim 1, characterized in that: The concentration limit range of the solution in the solution dehumidification module is 20%-50%, and the solution concentration limit range is divided into a low concentration interval and a high concentration interval. When the set concentration threshold is 35%, the solution concentration range in the low concentration interval is 20%-35%, excluding 35%, and the solution concentration range in the high density interval is 35%-50%.

6. The solution dehumidification air conditioning system based on a microchannel membrane heat exchanger according to claim 1, characterized in that: After obtaining the regenerated solution, the regeneration module needs to detect the concentration of the solution, and then compare the concentration of the regenerated solution with the concentration threshold to check whether the concentration of the regenerated solution is higher than the concentration threshold; When the concentration of the regenerated solution is higher than the concentration threshold, the corresponding batch of regenerated concentrated solution is injected into the concentrated solution tank; When the concentration of the regenerated solution is lower than the concentration threshold, the concentration of the regenerated solution is detected, the concentration difference between the solution concentration and the concentration threshold is calculated, and then the relatively regenerated solution is injected into the regeneration module to regenerate the regenerated solution again.

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