A double-duct heat recovery dehumidifier based on thermoelectric refrigeration

Abstract

A kind of double air duct regenerative dehumidification device based on thermoelectric refrigeration, comprising: A to processing component, B to processing component, condensing fin, ventilation component, first regenerator and second regenerator;Two opposite condensing fins form condensing cavity, and two-way flow channel is provided in condensing cavity, and two-way flow channel includes: A to flow channel and B to flow channel;The output end and input end of A to flow channel are communicated B to processing component and A to processing component respectively;The output end and input end of B to flow channel are communicated A to processing component and B to processing component respectively;First regenerator is arranged in the inside of A to processing component;Second regenerator is arranged in the inside of B to processing component.The present application has the advantages of significantly improving the efficiency of thermoelectric refrigeration dehumidification, and can be applicable to use under microgravity, and has potential application value in the field of dehumidification.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air dehumidifier, and in particular to a dehumidification device based on thermoelectric refrigeration. BACKGROUND

[0002] Air dehumidification is a common problem in daily production and life. When the humidity is too high, it will cause bacteria breeding, human discomfort, and also cause electronic equipment surface condensation or corrosion, which seriously affects the service life and normal work of electronic equipment. For manned spacecraft, in order to meet the comfort requirements of astronauts, the air humidity control in the sealed cabin of the spacecraft is as important as the temperature control. Generally, the relative humidity of the comfortable environment of astronauts is required to be 28% to 65%, and when the relative humidity is less than 25% or higher than 80%, the astronauts are allowed to work on orbit for no more than 12 hours. Therefore, it is very important to control the air humidity by using a dehumidification device.

[0003] At present, air dehumidification has developed into a new technology. The common air dehumidification methods include condensation dehumidification, liquid absorption dehumidification, solid adsorption dehumidification, semi-permeable membrane dehumidification, and rotary dehumidification. Among them, the condensation dehumidification method based on thermoelectric refrigeration has developed rapidly in recent years. It uses the thermoelectric refrigeration effect to cool the air to below the dew point and condense water. The Peltier effect of using thermoelectric refrigeration chip (TEC) is that the directional movement of charge carriers after electrification of semiconductor materials will cause directional heat transfer, so that one side of the thermoelectric refrigeration chip becomes cold and the other side becomes hot. When the temperature on the cold side is lower than the dew point temperature of the air, water vapor can condense on the surface. This method has the advantages of no refrigerant, simple and reliable operation, and low noise.

[0004] At present, the thermoelectric refrigeration dehumidification device generally directly introduces air into the cold end to condense to below the dew point. For example, Chi-Sheng Hsieh et al. invented a portable dehumidification device based on thermoelectric refrigeration [1] , Zhuang Mengwen et al. invented a thermoelectric condensation dehumidification device [2] , and Luo Zhong et al. carried out a dehumidification experimental study of semiconductor refrigerators [3] . This method needs a large temperature difference between the cold and hot sides of the refrigeration chip, and the dry cold air condensed on the cold side is directly discharged into the environment, resulting in high power consumption and low dehumidification efficiency. The energy efficiency ratio (refrigerating capacity / input power) of general compression refrigeration can reach more than 3, while the dehumidification energy efficiency ratio based on thermoelectric refrigeration is only less than 0.3.

[0005] Luo Zhong et al. carried out a dehumidification experimental study of semiconductor refrigerators [3] , which used the dry cold air condensed to cool the hot side, i.e. heat recovery, thereby improving the energy efficiency of the refrigeration chip and the dehumidification efficiency to 0.37. However, this research still needs to directly cool the ambient air to below the dew point, and the temperature difference between the cold and hot sides of the refrigeration chip is still large.

[0006] References:

[0007] 1) 1994-US5375421, Portable thermoelectric dehumidifier, Chi-Sheng Hsieh et al.

[0008] 2) CN105928245A, A kind of thermoelectric condensing dehumidifier, Zhuang Mengwen et al.

[0009] 3) Experimental study on dehumidification of semiconductor refrigerator, Journal of Refrigeration, Luo Zhong, Zhang Xu, Wang Shengji et al., 2015.10, 36(5). SUMMARY

[0010] The technical problem solved by the present application is to overcome the shortcomings of the prior art and provide a double-air-duct heat recovery type dehumidifier based on thermoelectric refrigeration, which significantly reduces the air temperature entering the condensing fins, reduces the refrigeration capacity requirement of thermoelectric refrigeration, improves the dehumidification efficiency, and is suitable for use in microgravity environment.

[0011] The technical solution of the present application is:

[0012] A double-air-duct heat recovery type dehumidifier based on thermoelectric refrigeration, comprising: an A-direction processing assembly, a B-direction processing assembly, a condensing fin, a ventilation assembly, a first heat exchanger and a second heat exchanger;

[0013] The condensing cavity is formed between the two opposite condensing fins, and a bidirectional flow channel is arranged in the condensing cavity, the bidirectional flow channel comprising: an A-direction flow channel and a B-direction flow channel;

[0014] The output end and the input end of the A-direction flow channel are respectively connected to the B-direction processing assembly and the A-direction processing assembly;

[0015] The output end and the input end of the B-direction flow channel are respectively connected to the A-direction processing assembly and the B-direction processing assembly;

[0016] The first heat exchanger is arranged inside the A-direction processing assembly;

[0017] The second heat exchanger is arranged inside the B-direction processing assembly;

[0018] The A-direction processing assembly inhales the external ambient air, the first heat exchanger pre-cools the ambient air inhaled by the A-direction processing assembly and sends it into the A-direction flow channel of the condensing cavity for cooling and dehumidification treatment, the gas after cooling and dehumidification treatment is blown into the second heat exchanger, and the gas is warmed up by the second heat exchanger and then discharged to the outside; the liquid after cooling and dehumidification treatment is adsorbed by the B-direction processing assembly and discharged;

[0019] The B-treatment assembly inhales external ambient air, the second regenerator pre-cools the ambient air inhaled by the B-treatment assembly and sends the ambient air into the B-toward flow channel of the condensing cavity for cooling and dehumidifying treatment, the gas after the cooling and dehumidifying treatment is blown into the first regenerator and is discharged to the outside after being warmed by the first regenerator; the liquid after the cooling and dehumidifying treatment is adsorbed by the A-treatment assembly and is discharged;

[0020] A group of ventilation assemblies are arranged on the outer sides of the two condensing fins respectively, and the ventilation assemblies are used for transferring heat generated in the cooling and dehumidifying process of the condensing fins to the outside.

[0021] Preferably, the ventilation assembly comprises a thermoelectric refrigeration sheet, a heat dissipation assembly, a fan support and a fan.

[0022] The fan is fixedly connected to the top outer side of the fan support, and a ventilation opening is processed on the fan support at a position corresponding to the fan; the fan support covers the outside of the thermoelectric refrigeration sheet and the heat dissipation assembly, and the heat dissipation assembly is located between the thermoelectric refrigeration sheet and the fan; the bottom of the fan support is fixedly connected to the condensing fin.

[0023] The upper surface of the heat dissipation assembly and the fan support are not in contact.

[0024] The upper surface of the heat dissipation assembly and the fan support form a heat dissipation air duct.

[0025] The heat dissipation assembly and the condensing fin are fixedly connected to the fan support and clamp the thermoelectric refrigeration sheet.

[0026] The cold end of the thermoelectric refrigeration sheet abuts against the condensing fin, and the hot end of the thermoelectric refrigeration sheet abuts against the heat dissipation assembly.

[0027] Preferably, the fan support is a plate structure formed by three panel pieces in an inverted U shape with a side vertical surface opening, and the side vertical surface opening of the fan support is used for increasing the heat dissipation capacity of the heat dissipation assembly.

[0028] Preferably, the heat dissipation assembly comprises a heat dissipation plate and a heat dissipation fin.

[0029] The heat dissipation plate has a plurality of heat dissipation fins arranged on the top of the heat dissipation plate, and the bottom of the heat dissipation plate is a plane.

[0030] The upper surface of the heat dissipation fin and the fan support form a heat dissipation air duct.

[0031] Preferably, the array direction of the fin structure in the condensing fin and the normal direction of the array direction of the heat dissipation fin in the heat dissipation assembly are perpendicular to each other.

[0032] Preferably, the side vertical surface opening direction of the fan support is perpendicular to the normal direction of the array direction of the heat dissipation fin in the heat dissipation assembly.

[0033] Preferably, the A-treatment assembly and the B-treatment assembly each comprise a fan, a wind guide section, a condensate water pumping module and a mounting shell.

[0034] The output end of the fan is fixedly connected with the installation shell, and the fan in the A-treatment assembly is used for sucking external ambient air and blowing into the first regenerator; the fan in the B-treatment assembly is used for sucking external ambient air and blowing into the second regenerator.

[0035] The installation shell and the condensation cavity are communicated through the air guide section.

[0036] The condensate water suction module in the A-treatment assembly receives the liquid generated in the B-treatment assembly and removes the liquid after adsorption; the condensate water suction module in the B-treatment assembly receives the liquid generated in the A-treatment assembly and removes the liquid after adsorption.

[0037] The first regenerator in the A-treatment assembly receives the gas blown out by the B-treatment assembly, and the gas is treated by temperature rising and then discharged to the outside.

[0038] The second regenerator in the B-treatment assembly receives the gas blown out by the A-treatment assembly, and the gas is treated by temperature rising and then discharged to the outside.

[0039] Preferably, the side vertical surface opening direction of the fan support is perpendicular to the air outlet direction of the air guide section.

[0040] Preferably, the A-treatment assembly and the B-treatment assembly are arranged side by side, and the flow directions are opposite.

[0041] Compared with the prior art, the present application has the following advantages:

[0042] 1) The double condensation air ducts arranged in the present application are connected in head-to-tail mode, and the low-temperature air after condensation in the air duct is used for pre-cooling the air entering the other air duct, so that the temperature of the air entering the condensation fins is significantly reduced.

[0043] 2) The condensate water is blown out by the airflow in the present application, and does not need to rely on gravity to fall, and can be used in a microgravity environment. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 It is a basic working principle diagram of a double-flow regenerative dehumidification device based on thermoelectric refrigeration.

[0045] Figure 2 It is a schematic diagram of air states ①, ②, ③ and ④ in the enthalpy-humidity diagram.

[0046] Figure 3 It is a structural schematic diagram of a double-flow regenerative dehumidification device based on thermoelectric refrigeration.

[0047] Figure 4 It is an exploded view of a double-flow regenerative dehumidification device based on thermoelectric refrigeration.

[0048] Figure 5 Temperature distribution diagram of cold side and hot side fins in an embodiment of the present application.

[0049] Figure 6 Curve diagram of air volume influence on dehumidification capacity.

[0050] In the figure, 1. fan, 2. first regenerator, 3. air guide section, 4. condensing fin, 5. thermoelectric refrigeration fin, 6. heat dissipation assembly, 7. condensate water pumping module, 8. second regenerator, 9. mounting shell, 10. water suction port, 11. fan support, 12. fan. DETAILED DESCRIPTION

[0051] The present application will now be further described in connection with specific embodiments, which are intended to explain the present application but not to further limit it.

[0052] The thermoelectric refrigeration double air duct regenerative dehumidification device comprises an A-direction processing assembly, a B-direction processing assembly, condensing fins 4, an air guide assembly, a first regenerator 2 and a second regenerator 8. The condensing cavity is formed between the two oppositely arranged condensing fins 4, and the double-direction flow duct is arranged side by side in the condensing cavity, which comprises an A-direction flow duct and a B-direction flow duct. The output end and the input end of the A-direction flow duct are respectively connected to the B-direction processing assembly and the A-direction processing assembly. The output end and the input end of the B-direction flow duct are respectively connected to the A-direction processing assembly and the B-direction processing assembly.

[0053] The first regenerator 2 is arranged inside the A-direction processing assembly, and the second regenerator 8 is arranged inside the B-direction processing assembly.

[0054] The A-direction processing assembly inhales the external ambient air, the first regenerator 2 performs pre-cooling treatment on the ambient air inhaled by the A-direction processing assembly and sends it into the A-direction flow duct of the condensing cavity for cooling and dehumidification treatment, the gas after the cooling and dehumidification treatment is blown into the second regenerator 8, and the ambient air is heated and treated by the second regenerator 8 and then discharged to the outside. The liquid after the cooling and dehumidification treatment is adsorbed by the B-direction processing assembly and discharged from the water suction port 10.

[0055] The B-direction processing assembly inhales the external ambient air, the second regenerator 8 performs pre-cooling treatment on the ambient air inhaled by the B-direction processing assembly and sends it into the B-direction flow duct of the condensing cavity for cooling and dehumidification treatment, the gas after the cooling and dehumidification treatment is blown into the first regenerator 2, and the ambient air is heated and treated by the first regenerator 2 and then discharged to the outside. The liquid after the cooling and dehumidification treatment is adsorbed by the A-direction processing assembly and discharged from the water suction port 10.

[0056] The first regenerator 2 and the second regenerator 8 are both double air duct structures. The heating treatment and the pre-cooling treatment in the first regenerator 2 are respectively performed in different air ducts in the double air duct structure. The heating treatment and the pre-cooling treatment in the second regenerator 8 are respectively performed in different air ducts in the double air duct structure.

[0057] The outer side of each of the two condensing fins 4 is provided with a set of ventilation assemblies for transferring heat generated in the cooling and dehumidifying process of the condensing fins 4 to the outside. That is, the condensing fins 4 are used to cool and dehumidify the ambient air, and the dry air after being cooled and dehumidified is heated by the counter heat regenerator and discharged into the external environment.

[0058] The ventilation assembly comprises a thermoelectric refrigeration sheet 5, a heat dissipation assembly 6, a fan bracket 11 and a fan 12. The fan 12 is fixedly connected to the top outer side of the fan bracket 11, and the fan bracket 11 is provided with a ventilation opening corresponding to the fan 12. The fan bracket 11 covers the outside of the thermoelectric refrigeration sheet 5 and the heat dissipation assembly 6, and the heat dissipation assembly 6 is located between the thermoelectric refrigeration sheet 5 and the fan 12. The bottom of the fan bracket 11 is fixedly connected to the condensing fin 4.

[0059] The upper surface of the heat dissipation assembly 6 and the fan bracket 11 are not in contact. The upper surface of the heat dissipation plate in the heat dissipation assembly 6 and the fan bracket 11 form a heat dissipation air duct. The heat dissipation assembly 6 and the condensing fin 4 are fixedly connected to the fan bracket 11 by screws and clamp the thermoelectric refrigeration sheet 5.

[0060] The cold end of the thermoelectric refrigeration sheet 5 is attached to the condensing fin 4, and the hot end of the thermoelectric refrigeration sheet 5 is attached to the heat dissipation assembly 6.

[0061] The fan bracket 11 is a plate structure formed by three panel pieces in the shape of an inverted U with an open side vertical surface, and the open side vertical surface of the fan bracket 11 is used to increase the heat dissipation capacity of the heat dissipation assembly 6.

[0062] The heat dissipation assembly 6 comprises a heat dissipation plate and heat dissipation fins. The top of the heat dissipation plate is arrayed with a plurality of heat dissipation fins, and the bottom of the heat dissipation plate is a flat surface. The upper surface of the heat dissipation fins and the fan bracket 11 form a heat dissipation air duct.

[0063] The array direction of the fin structure in the condensing fin 4 and the array direction of the heat dissipation fins in the heat dissipation assembly 6 are perpendicular to each other.

[0064] The direction of the open side vertical surface of the fan bracket 11 is perpendicular to the normal direction of the array direction of the heat dissipation fins in the heat dissipation assembly 6.

[0065] Both the A-direction processing assembly and the B-direction processing assembly comprise a fan 1, a guide air section 3, a condensate water pumping module 7 and a mounting shell 9.

[0066] The output end of the fan 1 is fixedly connected to the mounting shell 9. The fan 1 in the A-direction processing assembly is used to suck in the ambient air from the outside and blow it into the first heat regenerator 2. The fan 1 in the B-direction processing assembly is used to suck in the ambient air from the outside and blow it into the second heat regenerator 8.

[0067] The mounting shell 9 and the condensing cavity are connected through the guide air section 3.

[0068] The condensate suction module 7 is used for suction and removal of the liquid generated in the cooling and dehumidification process of the condensing fins 4 of the condensing cavity. That is, the condensate suction module 7 in the A-to-treatment assembly receives the liquid generated in the cooling and dehumidification process of the B-to-flow channel for suction and removal; the condensate suction module 7 in the B-to-treatment assembly receives the liquid generated in the cooling and dehumidification process of the A-to-flow channel for suction and removal.

[0069] The first regenerator 2 in the A-to-treatment assembly receives the gas generated in the cooling and dehumidification process blown by the B-to-flow channel, and after temperature rising treatment, is discharged to the outside.

[0070] The second regenerator 8 in the B-to-treatment assembly receives the gas generated in the cooling and dehumidification process blown by the A-to-flow channel, and after temperature rising treatment, is discharged to the outside.

[0071] The side vertical surface opening direction of the fan bracket 11 is perpendicular to the air outlet direction of the air guide section 3.

[0072] The A-to-flow channel and the B-to-flow channel are arranged side by side, and the flow directions are opposite.

[0073] The ambient air is sucked by the fan, pre-cooled by the regenerator, enters the condensing fins for cooling and dehumidification, the condensate water is sucked by the water-absorbing sponge, and is pumped out, and the low-temperature dry air after dehumidification is heated by the regenerator and discharged into the environment.

[0074] Embodiment

[0075] Figure 1 The basic working principle of the double-condensing air duct dehumidification is given. The inlet of the condensing air duct 1 sucks ambient air, and the state of the wet air is marked as ①. The wet air is pre-cooled by the first regenerator 2, and is cooled to state ② (compared with state ①, the absolute humidity remains unchanged, and the temperature is significantly reduced). Then the wet air enters the condensing fins 4, is cooled to below the dew point for dehumidification, and after dehumidification, the state of the wet air is ③ (compared with state ②, both the absolute humidity and the temperature are reduced). Then the wet air is heated by the second regenerator 8, and the air cold energy is fully utilized, and the air is changed to state ④ (compared with state ③, the absolute humidity remains unchanged, and the temperature is increased), and is discharged into the environment. The working state of the other side condensing air duct 2 is the same as that of the condensing air duct 1. The schematic of the air states ①, ②, ③ and ④ in the psychrometric chart is shown in Figure 2 .

[0076] The first regenerator 2 and the second regenerator 8 are both plate-fin type gas-gas heat exchangers, the wet air ① to ② is the hot side, and the ③ to ④ is the cold side, and the hot and cold sides are isolated. The regenerator efficiency should be as high as possible, so that the temperature of the wet air ② is as close to the dew point as possible, and the power consumption of the thermoelectric refrigeration piece 5 is maximally reduced. At the same time, the air resistance of the regenerator should be controlled. If the resistance loss is too large, the power consumption of the fan 1 will be increased.

[0077] Figure 3 and Figure 4The specific embodiments of the present application are given. The left fan 1, air guide section 3, condensate water suction module 7 and mounting shell 9 form A direction processing assembly, and the right fan 1, air guide section 3, condensate water suction module 7 and mounting shell 9 form B direction processing assembly. The fan 1 inhales ambient air into the first regenerator 2 and the second regenerator 8, and then the air enters the condensing fin 4 after being cooled. The air duct between the regenerator and the condensing fin 4 is provided with the air guide section 3, which improves the air speed in the condensing fin 4 and reduces the air flow resistance loss. The cold side of the thermoelectric refrigeration piece 5 is attached to the bottom surface of the condensing fin 4. After the thermoelectric refrigeration piece is powered on, the cold end temperature is reduced to below the dew point and above the freezing point. The humid air is cooled and condensed in the condensing fin 4. The condensed water is blown out by the airflow and is sucked out by the condensate water suction module 7. The condensate water suction module includes a water suction bag, a water guide pipe and a condensate water suction pump, and the material of the water suction bag can be sponge.

[0078] The thermoelectric refrigeration piece 5 is arranged in two layers, and the cold side is opposite to the cold side. The condensing space formed in this way can reduce heat leakage of the system. Since the temperature difference between the hot end and the cold end of the thermoelectric refrigeration piece 5 is small, the power consumption is smaller, and the refrigeration efficiency is higher. Therefore, a plurality of refrigeration pieces can be connected in series to reduce the temperature difference between the cold end and the hot end of each refrigeration piece. At the same time, the number of refrigeration pieces is increased, which is beneficial to the uniform distribution of refrigeration capacity in the condensing fin 4.

[0079] The hot side of the refrigeration piece is attached to the heat dissipation assembly 6. The heat dissipation fan 12 is arranged outside the heat dissipation assembly 6. The fan 12 inhales ambient air and blows it into the heat dissipation assembly 6 to take away the heat of the refrigeration piece. The heat dissipation fan 12 is supported by the fan support 11.

[0080] In the whole device, the heat leakage needs to be strictly controlled. The outside of the mounting shell 9 and the outside of the air guide section 3 are wrapped with heat insulation materials. Heat insulation materials are arranged between adjacent thermoelectric refrigeration pieces 5 to reduce the heat leakage between the condensing fin 4 and the heat dissipation assembly 6. When the refrigeration piece is installed, the screws used should also use heat insulation bushings.

[0081] Dehumidification performance test verification

[0082] A principle prototype of a double-air-duct regenerative dehumidification device based on thermoelectric refrigeration is manufactured. The dehumidification performance test of the prototype is carried out under the conditions of ambient temperature 23±2℃, ambient humidity 50±5%RH and standard atmospheric pressure. The test results are shown in Table 1. The dehumidification capacity of the prototype is more than 80g / h, the power consumption of the whole machine is about 230W (including the power consumption of the fan and the TEC piece), and the dehumidification COP (COP=air humidity heat exchange / whole machine power consumption) of the whole machine can reach more than 1.0.

[0083] Table 1: Dehumidification performance test results of the prototype

[0084]

[0085]

[0086] Temperature distribution on the hot and cold sides of the fins, such as Figure 5 As shown in the diagram, this is half of the dehumidification core. The diagram shows the temperature and temperature difference of the fins on the hot and cold sides of each cooling element. At the heat dissipation end, the air temperature gradually increases from the inside to the outside, resulting in generally higher temperatures on the outer fins. At the cold end, the fin temperature generally decreases along the airflow direction.

[0087] The effect of air volume on dehumidification performance is as follows:

[0088] 1) When the power of the cooling chip remains constant, there is an optimal airflow. If the airflow is too small, the dehumidification capacity will be insufficient; if the airflow is too large, the air velocity will be too high, and the heat exchange between the dry air and the heat exchange will be too large, resulting in a decrease in dehumidification capacity instead of an increase.

[0089] 2) Ambient humidity affects dehumidification capacity. When the TEC power is constant, the optimal air volume increases with increasing ambient humidity.

[0090] 3) When the airflow is within a suitable range, changes in airflow have little overall impact on the dehumidification capacity. Figure 6 As shown, the TEC power supply current is 1.3A.

[0091] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make possible variations and modifications to the technical solutions of the present invention using the disclosed methods and techniques without departing from the spirit and scope of the invention. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention, without departing from the content of the technical solutions of the present invention, shall fall within the protection scope of the present invention. Where there is no conflict, the embodiments of this application and the technical features thereof can be combined with each other.

[0092] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. A dual air duct heat recovery type dehumidifying apparatus based on thermoelectric refrigeration, characterized by comprising: The application relates to a condenser, which comprises an A-direction processing component, a B-direction processing component, condensing fins (4), a ventilation component, a first regenerator (2) and a second regenerator (8). A condensing cavity is formed between the two oppositely arranged condensing fins (4), and a bidirectional flow channel is arranged in the condensing cavity, wherein the bidirectional flow channel comprises an A-direction flow channel and a B-direction flow channel. The output end and the input end of the A-direction flow channel are respectively connected with the B-direction processing component and the A-direction processing component; The output end and the input end of the B-direction flow channel are respectively connected with the A-direction processing component and the B-direction processing component; The first regenerator (2) is arranged in the interior of the A-direction processing component; The second regenerator (8) is arranged in the interior of the B-direction processing component; The A-direction processing component inhales external ambient air, the first regenerator (2) pre-cools the ambient air inhaled by the A-direction processing component and sends the ambient air into the A-direction flow channel of the condensing cavity for cooling and dehumidifying treatment, the gas after the cooling and dehumidifying treatment is blown into the second regenerator (8) and is discharged to the outside after being warmed by the second regenerator (8); and the liquid after the cooling and dehumidifying treatment is adsorbed by the B-direction processing component and discharged; The B-direction processing component inhales external ambient air, the second regenerator (8) pre-cools the ambient air inhaled by the B-direction processing component and sends the ambient air into the B-direction flow channel of the condensing cavity for cooling and dehumidifying treatment, the gas after the cooling and dehumidifying treatment is blown into the first regenerator (2) and is discharged to the outside after being warmed by the first regenerator (2); and the liquid after the cooling and dehumidifying treatment is adsorbed by the A-direction processing component and discharged; A group of ventilation components are arranged on the outer sides of the two condensing fins (4), and the ventilation components are used for transferring the heat generated in the cooling and dehumidifying process of the condensing fins (4) to the outside. The ventilation component comprises a thermoelectric refrigeration sheet (5), a heat dissipation component (6), a fan support (11) and a fan (12).

2. A dual air duct heat pipe dehumidifier based on thermoelectric refrigeration according to claim 1, wherein, The fan (12) is fixedly connected to the top outer side of the fan support (11), the fan support (11) is provided with a ventilation opening corresponding to the fan (12), the fan support (11) covers the outer sides of the thermoelectric refrigeration sheet (5) and the heat dissipation component (6), the heat dissipation component (6) is located between the thermoelectric refrigeration sheet (5) and the fan (12), and the bottom of the fan support (11) is fixedly connected to the condensing fin (4). The upper surface of the heat dissipation component (6) is not in contact with the fan support (11); The upper surface of the heat dissipation component (6) and the fan support (11) form a heat dissipation air channel; The heat dissipation component (6) and the condensing fin (4) are respectively fixedly connected to the fan support (11) and clamp and fix the thermoelectric refrigeration sheet (5); The cold end of the thermoelectric refrigeration sheet (5) is attached to the condensing fin (4), and the hot end of the thermoelectric refrigeration sheet (5) is attached to the heat dissipation component (6). The fan support (11) is a plate structure formed by three plate pieces and is in an inverted U shape with a side vertical surface opening, the side vertical surface opening of the fan support (11) is used for increasing the heat dissipation capacity of the heat dissipation component (6).

3. A dual air duct heat pipe dehumidifier based on thermoelectric refrigeration according to claim 2, wherein, The heat dissipation component (6) comprises a heat dissipation plate and heat dissipation fins.

4. A dual air duct heat pipe dehumidifier based on thermoelectric refrigeration according to claim 3, wherein, The heat dissipation plate is provided with a plurality of heat dissipation fins in an array on the top, and the bottom of the heat dissipation plate is a plane. The upper surface of the heat dissipation fin and the fan support (11) form a heat dissipation air channel. ​ 5. A dual air duct heat pipe dehumidifier based on thermoelectric refrigeration according to claim 4, wherein, The array direction of the fin structure in the condensing fin (4) and the normal direction of the array direction of the heat dissipation fin in the heat dissipation assembly (6) are perpendicular to each other.

6. A dual air duct heat pipe dehumidifier based on thermoelectric refrigeration according to claim 5, wherein, The side vertical surface opening direction of the fan support (11) is perpendicular to the normal direction of the array direction of the heat dissipation fin in the heat dissipation assembly (6).

7. A dual air duct heat pipe dehumidifier based on thermoelectric refrigeration according to any one of claims 3 to 6, wherein, The A-direction processing assembly and the B-direction processing assembly each comprise a fan (1), a wind guide section (3), a condensate water suction module (7) and a mounting shell (9). The output end of the fan (1) is fixedly connected to the mounting shell (9), and the fan (1) in the A-direction processing assembly is used for sucking external ambient air and blowing into the first regenerator (2); the fan (1) in the B-direction processing assembly is used for sucking external ambient air and blowing into the second regenerator (8). The mounting shell (9) and the condensing cavity are communicated through the wind guide section (3). The condensate water suction module (7) in the A-direction processing assembly receives liquid generated in the B-direction flow channel cooling and dehumidification process for suction and removal; the condensate water suction module (7) in the B-direction processing assembly receives liquid generated in the A-direction flow channel cooling and dehumidification process for suction and removal. The first regenerator (2) in the A-direction processing assembly receives the gas blown out by the B-direction flow channel, performs temperature rising treatment and then discharges to the outside. The second regenerator (8) in the B-direction processing assembly receives the gas blown out by the A-direction flow channel, performs temperature rising treatment and then discharges to the outside.

8. A dual air duct heat pipe dehumidifier based on thermoelectric refrigeration according to claim 7, wherein, The side vertical surface opening direction of the fan support (11) is perpendicular to the air outlet direction of the wind guide section (3).

9. A dual air duct heat pipe dehumidifier based on thermoelectric refrigeration according to claim 8, wherein, The A-direction flow channel and the B-direction flow channel are arranged side by side and have opposite flow directions.

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