Double-air-duct regenerative dehumidification device based on thermoelectric refrigeration

Abstract

The invention discloses a double-air-duct regenerative dehumidification device based on thermoelectric refrigeration. The double-air-duct regenerative dehumidification device comprises an A-direction processing assembly, a B-direction processing assembly, condensation fins, a ventilation assembly, a first heat regenerator and a second heat regenerator, a condensation cavity is formed between every two oppositely-arranged condensation fins, and a two-way flow channel is formed in each condensation cavity and 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 communicated with the B-direction processing assembly and the A-direction processing assembly; the output end and the input end of the B-direction flow channel are respectively communicated with the A-direction processing assembly and the B-direction processing assembly; the first heat regenerator is arranged in the A-direction treatment assembly; and the second heat regenerator is arranged in the B-direction treatment assembly. The method has the advantage of remarkably improving the thermoelectric refrigeration dehumidification efficiency, can be suitable for being used under microgravity, and has potential application value in the field of dehumidification.

Description

Technical Field

[0001] The invention relates to the technical field of air dehumidifiers, in particular to a dehumidification device based on thermoelectric refrigeration. Background Art

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

[0003] At present, air dehumidification has developed into a new technology. The commonly used air dehumidification methods include condensation dehumidification, liquid absorption dehumidification, solid adsorption dehumidification, semi-permeable membrane dehumidification and rotary dehumidification. Among them, among the condensation dehumidification methods, dehumidification based on thermoelectric refrigeration has developed rapidly in recent years. It uses the thermoelectric refrigeration effect to cool the air below the dew point and precipitate condensed water. The Peltier effect of the thermoelectric refrigeration chip (TEC) is used, that is, the directional movement of carriers after the semiconductor material is energized will lead to the directional transfer of heat, so that one side of the thermoelectric refrigeration chip becomes cold and the other side becomes hot. When the temperature of 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, thermoelectric refrigeration and dehumidification devices generally introduce air directly into the cold end to condense it below the dew point. For example, Chi-Sheng Hsieh et al. invented a portable dehumidification device based on thermoelectric refrigeration. [1] A thermoelectric condensation dehumidification device invented by Zhuang Mengwen et al. [2] And the semiconductor refrigerator dehumidification experimental research conducted by Luo Zhong et al. [3] This method requires the refrigeration plate to form a large temperature difference between the hot and cold sides, and the dry cold air condensed on the cold side is directly discharged into the environment, resulting in high system power consumption and low dehumidification efficiency. The energy efficiency ratio (cooling capacity / input power) of general compression refrigeration can reach more than 3, while the dehumidification energy efficiency ratio based on thermoelectric refrigeration is less than 0.3.

[0005] Experimental study on dehumidification of semiconductor refrigerators conducted by Luo Zhong et al. [3] , the condensed dry cold air is used to cool the hot side, that is, heat recovery is performed, thereby improving the energy efficiency of the refrigeration plate, and the dehumidification efficiency is increased to 0.37. However, this study still needs to directly cool the ambient air to below the dew point, and the temperature difference between the hot and cold sides of the refrigeration plate is still large.

[0006] References:

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

[0008] 2) CN105928245A, a thermoelectric condensation dehumidification device, 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 of the invention

[0010] The technical problem solved by the present invention is: to overcome the shortcomings of the prior art and provide a dual-duct heat recovery dehumidification device based on thermoelectric refrigeration, which significantly reduces the temperature of the air entering the condensation fins, reduces the cooling capacity demand of the thermoelectric refrigeration sheet, improves the dehumidification efficiency, and is suitable for use in a microgravity environment.

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

[0012] A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration, comprising: an A-direction processing component, a B-direction processing component, a condensing fin, a ventilation component, a first heat regenerator, and a second heat regenerator;

[0013] A condensation cavity is formed between two oppositely arranged condensation fins, and a bidirectional flow channel is arranged in the condensation cavity, and the bidirectional flow channel includes: an A-direction flow channel and a B-direction flow channel;

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

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

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

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

[0018] The A-direction processing component inhales external ambient air, the first regenerator precools the ambient air inhaled by the A-direction processing component and sends it to the A-direction flow channel of the condensation chamber for cooling and dehumidification. The gas after cooling and dehumidification is blown into the second regenerator, and is heated by the second regenerator and then discharged to the outside; the liquid after cooling and dehumidification is adsorbed by the B-direction processing component and discharged;

[0019] The B-direction processing component inhales external ambient air, and the second regenerator precools the ambient air inhaled by the B-direction processing component and sends it to the B-direction flow channel of the condensation chamber for cooling and dehumidification. The gas after cooling and dehumidification is blown into the first regenerator, and is heated by the first regenerator and then discharged to the outside; the liquid after cooling and dehumidification is adsorbed by the A-direction processing component and discharged;

[0020] A group of ventilation components are respectively arranged on the outer sides of the two condensing fins, and the ventilation components are used to transfer the heat generated during the cooling and dehumidification process of the condensing fins to the outside.

[0021] Preferably, the ventilation assembly comprises: a thermoelectric cooling sheet, a heat dissipation assembly, a fan bracket and a fan;

[0022] The fan is fixedly connected to the top outer side of the fan bracket, and a vent is processed on the fan bracket at a position corresponding to the fan; the fan bracket is shielded outside the thermoelectric cooling sheet and the heat dissipation component, and the heat dissipation component is located between the thermoelectric cooling sheet and the fan; the bottom of the fan bracket is fixedly connected to the condensing fin;

[0023] There is no contact between the upper surface of the heat sink and the fan bracket;

[0024] A heat dissipation duct is formed between the upper surface of the heat dissipation component and the fan bracket;

[0025] The heat dissipation component and the condensing fins are respectively fixedly connected to the fan bracket, and the thermoelectric cooling sheet is clamped and fixed;

[0026] The cold end of the thermoelectric cooling sheet is attached to the condensing fins, and the hot end of the thermoelectric cooling sheet is attached to the heat dissipation component.

[0027] Preferably, the fan bracket is an inverted U-shaped plate structure formed by three plate members and having an open side elevation surface. The opening of the side elevation surface of the fan bracket is used to increase the heat dissipation capacity of the heat dissipation component.

[0028] Preferably, the heat dissipation assembly comprises: a heat dissipation plate and heat dissipation fins;

[0029] The top array of the heat sink has multiple heat sink fins, and the bottom of the heat sink is flat;

[0030] A heat dissipation air duct is formed between the upper surface of the heat dissipation fin and the fan bracket.

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

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

[0033] Preferably, both the A-direction processing assembly and the B-direction processing assembly include: a fan, an air guide section, a condensate suction module and a mounting shell;

[0034] The output end of the fan is fixedly connected to the mounting shell. The fan in the A-direction processing assembly is used to inhale external ambient air and blow it into the first regenerator; the fan in the B-direction processing assembly is used to inhale external ambient air and blow it into the second regenerator;

[0035] The installation shell and the condensation cavity are connected via an air guide section;

[0036] The condensed water suction module in the A-direction processing component receives the liquid generated during the cooling and dehumidification process of the B-direction flow channel, absorbs it and removes it; the condensed water suction module in the B-direction processing component receives the liquid generated during the cooling and dehumidification process of the A-direction flow channel, absorbs it and removes it;

[0037] The first regenerator in the A-direction treatment assembly receives the gas blown out from the B-direction flow channel, heats it, and then discharges it to the outside;

[0038] The second heat regenerator in the B-direction processing assembly receives the gas blown out from the A-direction flow channel, heats it, and then discharges it to the outside.

[0039] Preferably, the opening direction of the side elevation of the fan bracket is perpendicular to the air outlet direction of the air guide section.

[0040] Preferably, the A-direction flow channel and the B-direction flow channel are arranged side by side with opposite flow directions.

[0041] The advantages of the present invention compared with the prior art are:

[0042] 1) The dual condensation air ducts provided in the present invention are arranged end to end, and the low-temperature air condensed in the air duct is used to pre-cool the air at the inlet of the other air duct, thereby significantly reducing the temperature of the air entering the condensation fins.

[0043] 2) In the present invention, the condensed water is blown out by the air flow and does not need to fall by gravity, so it can be used in a microgravity environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a basic working principle diagram of a dual-flow heat recovery dehumidification device based on thermoelectric refrigeration of the present invention.

[0045] Figure 2 This is a schematic diagram of the air states ①②③④ in the dehumidification device in the enthalpy-humidity diagram.

[0046] Figure 3 It is a schematic structural diagram of a double-flow channel heat recovery dehumidification device based on thermoelectric refrigeration of the present invention.

[0047] Figure 4 This is a structural explosion diagram of a double-channel heat recovery dehumidification device based on thermoelectric refrigeration according to the present invention.

[0048] Figure 5 Graph showing the temperature distribution of the cold and hot side fins in one embodiment of the present invention.

[0049] Figure 6 This is a curve chart showing the effect of air volume on dehumidification capacity.

[0050] In the figure, 1. fan, 2. first heat exchanger, 3. air guide section, 4. condensing fins, 5. thermoelectric cooling sheet, 6. heat dissipation component, 7. condensate suction module, 8. second heat exchanger, 9. mounting shell, 10. water suction port, 11. fan bracket, 12. fan. DETAILED DESCRIPTION

[0051] The present invention will now be further described in conjunction with specific embodiments. The following embodiments are intended to illustrate the present invention rather than to further limit the present invention.

[0052] Thermoelectric refrigeration dual-duct heat recovery dehumidification device, including: A-direction processing assembly, B-direction processing assembly, condensation fin 4, ventilation assembly, first heat regenerator 2 and second heat regenerator 8. A condensation cavity is formed between two oppositely arranged condensation fins 4, and a bidirectional flow channel arranged side by side is arranged in the condensation cavity, and the bidirectional flow channel includes: A-direction flow channel and B-direction flow channel; the output end and input end of the A-direction flow channel are respectively connected to the B-direction processing assembly and the A-direction processing assembly; the output end and input end of the B-direction flow channel 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; the second regenerator 8 is arranged inside the B-direction processing assembly;

[0054] The A-direction processing component inhales external ambient air, the first regenerator 2 precools the ambient air inhaled by the A-direction processing component and sends it to the A-direction flow channel of the condensation chamber for cooling and dehumidification. The gas after cooling and dehumidification is blown into the second regenerator 8, and is heated by the second regenerator 8 and then discharged to the outside; the liquid after cooling and dehumidification is adsorbed by the B-direction processing component and discharged from the water suction port 10;

[0055] The B-direction processing component inhales external ambient air, and the second regenerator 8 precools the ambient air inhaled by the B-direction processing component and sends it to the B-direction flow channel of the condensation chamber for cooling and dehumidification. The gas after cooling and dehumidification is blown into the first regenerator 2, and is heated by the first regenerator 2 and then discharged to the outside; the liquid after cooling and dehumidification is adsorbed by the A-direction processing component and discharged from the water suction port 10;

[0056] The first regenerator 2 and the second regenerator 8 are both dual-duct structures. The heating process and pre-cooling process in the first regenerator 2 are respectively carried out in different ducts in the dual-duct structure. The heating process and pre-cooling process in the second regenerator 8 are respectively carried out in different ducts in the dual-duct structure.

[0057] A set of ventilation components is respectively arranged on the outside of the two condensing fins 4, and the ventilation components are used to transfer the heat generated in the cooling and dehumidification 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 cooling and dehumidification is heated up by the heat regenerator on the opposite side and discharged into the external environment.

[0058] The ventilation assembly includes: a thermoelectric cooling 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 a vent is processed on the fan bracket 11 at a position corresponding to the fan 12; the fan bracket 11 covers the outside of the thermoelectric cooling sheet 5 and the heat dissipation assembly 6, and the heat dissipation assembly 6 is located between the thermoelectric cooling sheet 5 and the fan 12; the bottom of the fan bracket 11 is fixedly connected to the condensing fin 4;

[0059] There is no contact between the upper surface of the heat dissipation component 6 and the fan bracket 11; a heat dissipation duct is formed between the upper surface of the heat dissipation plate in the heat dissipation component 6 and the fan bracket 11; the heat dissipation component 6 and the condensing fin 4 are respectively fixedly connected to the fan bracket 11 by screws, and the thermoelectric cooling sheet 5 is clamped and fixed;

[0060] The cold end of the thermoelectric cooling sheet 5 is in contact with the condensing fin 4 , and the hot end of the thermoelectric cooling sheet 5 is in contact with the heat dissipation component 6 .

[0061] The fan bracket 11 is a plate structure formed by three panels in an inverted U shape with an open side elevation. The opening of the side elevation 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 includes: a heat dissipation plate and heat dissipation fins; a plurality of heat dissipation fins are arrayed on the top of the heat dissipation plate, and the bottom of the heat dissipation plate is a plane; a heat dissipation air duct is formed between the upper surface of the heat dissipation fins and the fan bracket 11.

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

[0064] The opening direction of the side elevation of the fan bracket 11 is perpendicular to the normal direction of the heat dissipation fin array in the heat dissipation assembly 6 .

[0065] The A-direction processing assembly and the B-direction processing assembly both include: a fan 1, an air guide section 3, a condensate suction 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 inhale the external ambient air and blow it into the first regenerator 2; the fan 1 in the B-direction processing assembly is used to inhale the external ambient air and blow it into the second regenerator 8;

[0067] The installation shell 9 and the condensation cavity are connected through the air guide section 3;

[0068] The condensation water suction module 7 is used to absorb and remove the liquid generated during the cooling and dehumidification process of the condensation fins 4 of the condensation chamber. That is, the condensation water suction module 7 in the A-direction processing component receives the liquid generated during the cooling and dehumidification process of the B-direction flow channel and absorbs and removes it; the condensation water suction module 7 in the B-direction processing component receives the liquid generated during the cooling and dehumidification process of the A-direction flow channel and absorbs and removes it;

[0069] The first regenerator 2 in the A-direction processing assembly receives the gas generated during the cooling and dehumidification process blown out from the B-direction flow channel, and discharges it to the outside after heating.

[0070] The second regenerator 8 in the B-direction processing assembly receives the gas generated during the cooling and dehumidification process blown out from the A-direction flow channel, and discharges it to the outside after heating it.

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

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

[0073] The ambient air of the present invention is sucked in by the fan, pre-cooled by the regenerator, and enters the condensing fins for cooling and dehumidification. The condensed water is blown out by the air flow and adsorbed by the water-absorbing sponge, and is pumped out by the suction pump. The dehumidified low-temperature dry air is heated by the regenerator and discharged into the environment.

[0074] Example

[0075] Figure 1 The basic working principle of double condensation duct dehumidification is given. The inlet of the condensation duct 1 inhales ambient air. The state of the wet air is marked as ①. It is pre-cooled by the first reheater 2 and cooled to state ② (compared with state ①, the absolute moisture content remains unchanged, and the temperature is significantly reduced). The wet air then enters the condensation fins 4 and is cooled to below the dew point for dehumidification. After dehumidification, the state of the wet air is ③ (compared with state ②, both the absolute moisture content and the temperature are reduced). The wet air then heats up through the second reheater 8, and the air cooling capacity is fully utilized, turning to state ④ (compared with state ③, the absolute moisture content remains unchanged, and the temperature is increased), and discharged into the environment. The working state of the condensation duct 2 on the other side is the same as that of the condensation duct 1. The air states ①②③④ are shown in the enthalpy-humidity diagram as follows Figure 2 shown.

[0076] The first regenerator 2 and the second regenerator 8 are both plate-fin type air-to-air heat exchangers, with wet air ① to ② being the hot side and ③ to ④ being the cold side, and the hot and cold sides being isolated. The efficiency of the regenerator 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 cooling sheet 5 is minimized. At the same time, the wind resistance of the regenerator should be controlled. If the resistance loss is too large, the power consumption of the fan 1 will increase.

[0077] Figure 3 and Figure 4A specific embodiment of the present invention is given. The fan 1, air guide section 3, condensate suction module 7 and mounting shell 9 on the left side of the figure constitute the A-direction processing component, and the fan 1, air guide section 3, condensate suction module 7 and mounting shell 9 on the right side constitute the B-direction processing component on the left side. The fan 1 inhales ambient air into the first regenerator 2 and the second regenerator 8, and enters the condensation fin 4 after cooling. The air duct between the regenerator and the condensation fin 4 is provided with an air guide section 3 to increase the wind speed in the condensation fin 4 and reduce the air flow resistance loss. The cold side of the thermoelectric cooling plate 5 is attached to the bottom surface of the condensation fin 4. After the cooling plate is powered on, the temperature of the cold end drops below the dew point and above the freezing point, and the humid air is cooled and condensed in the condensation fin 4. After the condensed water condenses on the surface of the condensation fin 4, it is blown out by the air flow and adsorbed and discharged by the condensation water suction module 7. The condensation water adsorption module includes a water absorption bag, a water diversion pipe and a condensation water suction pump, etc. The water absorption bag material can be sponge.

[0078] The thermoelectric cooling sheet 5 is arranged in two layers, with the cold side facing the cold side, so that the condensation space formed can reduce the heat leakage of the system. When the temperature difference between the hot and cold ends of the thermoelectric cooling sheet 5 is small, the power consumption is smaller and the cooling efficiency is higher. Therefore, multiple cooling sheets can be connected in series to reduce the temperature difference between the hot and cold ends of each cooling sheet. At the same time, the increase in the number of cooling sheets is conducive to the uniform distribution of the cooling capacity in the condensing fins 4.

[0079] The hot side of the cooling fin is attached to the heat dissipation assembly 6. A 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 cooling fin. The heat dissipation fan 12 is supported by a fan bracket 11.

[0080] In the whole device, heat leakage must be strictly controlled, and heat insulation materials are coated on the outside of the installation shell 9 and the outside of the air guide section 3. Heat insulation materials are set between adjacent thermoelectric cooling sheets 5 to reduce heat leakage between the condensing fins 4 and the heat dissipation assembly 6. When installing the cooling sheet, the screws used should also use heat insulation bushings.

[0081] Dehumidification performance test verification

[0082] A prototype of a dual-duct heat recovery dehumidification device based on thermoelectric refrigeration described in the present invention was manufactured, and the dehumidification performance of the prototype was tested under the conditions of ambient temperature 23±2°C, ambient humidity 50±5%RH, and standard atmospheric pressure. The test results are shown in Table 1. The dehumidification capacity of the prototype reaches more than 80g / h, the power consumption of the whole machine is about 230W (including the power consumption of the fan and TEC sheet), and the dehumidification COP (COP=air humid 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] The temperature distribution of the hot and cold side fins, such as Figure 5 As shown. The figure shows half of the dehumidification core, and the figure shows the fin temperature and temperature difference of the hot and cold sides of each refrigeration plate. At the heat dissipation end, the air temperature gradually increases from the inside to the outside, resulting in a generally higher temperature on the fins on the outside. At the cold end, in general, the fin temperature gradually decreases along the air flow direction.

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

[0088] 1) When the power of the refrigeration unit remains unchanged, there is an optimal air volume. If the air volume is too small, the dehumidification capacity will be insufficient; when the air volume is too large, the wind speed will be too high, and the air dry heat exchange will be too large, resulting in a decrease in dehumidification capacity instead of an increase.

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

[0090] 3) When the air volume is in the appropriate range, the change in air volume has little effect on the dehumidification capacity overall, such as Figure 6 As shown, the TEC supply current is 1.3A.

[0091] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solution of the present invention by using the above disclosed methods and technical contents without departing from the spirit and scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall belong to the protection scope of the technical solution of the present invention. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0092] The contents not described in detail in the specification of the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration, characterized in that: include: A-direction processing assembly, B-direction processing assembly, condensing fins (4), ventilation assembly, a first heat regenerator (2) and a second heat regenerator (8); A condensation cavity is formed between two oppositely arranged condensation fins (4), and a bidirectional flow channel is arranged in the condensation cavity, and the bidirectional flow channel includes: an A-direction flow channel and a B-direction flow channel; The output end and input end of the A-direction flow channel are connected to the B-direction processing component and the A-direction processing component respectively; The output end and the input end of the B-direction flow channel are connected to the A-direction processing component and the B-direction processing component respectively; The first heat regenerator (2) is arranged inside the A-direction processing assembly; The second heat regenerator (8) is arranged inside the B-direction processing assembly; The A-direction processing component inhales external ambient air, the first regenerator (2) precools the ambient air inhaled by the A-direction processing component and sends it to the A-direction flow channel of the condensation chamber for cooling and dehumidification, the gas after cooling and dehumidification is blown into the second regenerator (8), and is heated by the second regenerator (8) and then discharged to the outside; the liquid after cooling and dehumidification is adsorbed by the B-direction processing component and discharged; The B direction processing component inhales external ambient air, the second heat regenerator (8) precools the ambient air inhaled by the B direction processing component and sends it to the B direction flow channel of the condensation chamber for cooling and dehumidification treatment, the gas after cooling and dehumidification treatment is blown into the first heat regenerator (2), and is heated by the first heat regenerator (2) and then discharged to the outside; the liquid after cooling and dehumidification treatment is adsorbed by the A direction processing component and discharged; A group of ventilation components is respectively arranged on the outer sides of the two condensing fins (4), and the ventilation components are used to transfer the heat generated during the cooling and dehumidification process of the condensing fins (4) to the outside.

2. A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration according to claim 1, characterized in that: The ventilation component comprises: a thermoelectric cooling sheet (5), a heat dissipation component (6), a fan bracket (11) and a fan (12); The fan (12) is fixedly connected to the outer side of the top of the fan bracket (11), and a ventilation hole is processed on the fan bracket (11) at a position corresponding to the fan (12); the fan bracket (11) covers the outside of the thermoelectric cooling sheet (5) and the heat dissipation component (6), and the heat dissipation component (6) is located between the thermoelectric cooling sheet (5) and the fan (12); the bottom of the fan bracket (11) is fixedly connected to the condensing fin (4); There is no contact between the upper surface of the heat dissipation component (6) and the fan bracket (11); A heat dissipation duct is formed between the upper surface of the heat dissipation component (6) and the fan bracket (11); The heat dissipation component (6) and the condensing fins (4) are respectively fixedly connected to the fan bracket (11), and the thermoelectric cooling sheet (5) is clamped and fixed; The cold end of the thermoelectric cooling sheet (5) is in contact with the condensing fin (4), and the hot end of the thermoelectric cooling sheet (5) is in contact with the heat dissipation component (6).

3. A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration according to claim 2, characterized in that: The fan bracket (11) is a plate structure formed by three plate members in an inverted U shape and having an open side elevation. The opening of the side elevation of the fan bracket (11) is used to increase the heat dissipation capacity of the heat dissipation component (6).

4. A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration according to claim 3, characterized in that: The heat dissipation component (6) comprises: a heat dissipation plate and heat dissipation fins; The top array of the heat sink has multiple heat sink fins, and the bottom of the heat sink is flat; A heat dissipation air duct is formed between the upper surface of the heat dissipation fins and the fan bracket (11).

5. A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration according to claim 4, characterized in that: The array direction of the fin structure in the condensing fins (4) and the normal direction of the heat dissipation fin array direction in the heat dissipation component (6) are perpendicular to each other.

6. A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration according to claim 5, characterized in that: The side elevation opening direction of the fan bracket (11) is perpendicular to the normal direction of the heat dissipation fin array in the heat dissipation assembly (6).

7. A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration according to any one of claims 3 to 6, characterized in that: The A-direction processing assembly and the B-direction processing assembly both include: a fan (1), an air guide section (3), a condensed water suction module (7) and a mounting shell (9); 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 inhale external ambient air and blow it into the first regenerator (2); the fan (1) in the B-direction processing assembly is used to inhale external ambient air and blow it into the second regenerator (8); The mounting shell (9) and the condensation cavity are connected via an air guide section (3); The condensed water suction module (7) in the A-direction processing component receives the liquid generated during the cooling and dehumidification process of the B-direction flow channel, absorbs it and removes it; the condensed water suction module (7) in the B-direction processing component receives the liquid generated during the cooling and dehumidification process of the A-direction flow channel, absorbs it and removes it; The first regenerator (2) in the A-direction processing assembly receives the gas blown out from the B-direction flow channel, performs a temperature treatment, and then discharges the gas to the outside; The second regenerator (8) in the B direction treatment component receives the gas blown out from the A direction flow channel, performs a temperature treatment, and then discharges it to the outside.

8. A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration according to claim 7, characterized in that: The opening direction of the side elevation of the fan bracket (11) is perpendicular to the air outlet direction of the air guide section (3).

9. A dual-duct heat recovery dehumidification device based on thermoelectric refrigeration according to claim 8, characterized in that: The A-direction flow channel and the B-direction flow channel are arranged side by side, and the flow directions are opposite.

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