Gas-liquid double-flow-path multifunctional heat exchanger and heat exchange system

Abstract

The invention belongs to the technical field of heat exchangers, and particularly relates to a gas-liquid double-flow-path multifunctional heat exchanger and a heat exchange system, water enters a water segregator through a water inlet pipe, enters a plurality of liquid heat exchange mechanisms under the action of the water segregator, exchanges heat in the liquid heat exchange mechanisms, then flows into a water collector, and finally flows into a tail end heat exchanger through a water outlet pipe; radiation heat exchange is achieved, and the indoor space is refrigerated / heated; air enters the cabinet body through the air inlet, air flow exchanges heat with water in the air heat exchange mechanism and then enters a room through the air inlet, heat convection is achieved, and the room is refrigerated / heated; convection heat exchange and radiation heat exchange can be carried out respectively or simultaneously, and therefore different heat exchange modes are achieved. Air exchanges heat with water, the air flows from bottom to top, the water flows from top to bottom, and the flowing directions of the water and the air are opposite, so that the convective heat exchange effect is further enhanced, the heat exchange frequency is increased, the heat exchange amount is increased, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat exchangers, and particularly relates to a gas-liquid dual-flow multi-functional heat exchanger and a heat exchange system. Background Art

[0002] With the rapid development of science and technology, people's pursuit of the quality of life has become increasingly high. Among many living needs, the cooling and heating functions provided by room air conditioners have become an essential part of people's daily lives. In our country, air conditioners have long been extremely popular and have penetrated into thousands of households.

[0003] There are many types of room air conditioners, such as air cooler fans. Although they have significant energy-saving effects, their cooling capacity is small, the degree of reduction in room air temperature is limited, and they are extremely likely to cause an increase in air relative humidity. If operated for a long time, it will make people feel uncomfortable due to the overly humid air; household split air conditioners have a very wide range of applications and are the most commonly used in daily life. However, there are relatively prominent problems such as strong blowing sensation; radiant air conditioners have the advantage of no blowing sensation and can provide better comfort. However, during summer cooling, radiant air conditioners often have condensation phenomena, so additional special dehumidification devices need to be equipped.

[0004] Therefore, a gas-liquid dual-flow multi-functional heat exchanger and a heat exchange system are proposed to meet the different needs of different people and solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a gas-liquid dual-flow multi-functional heat exchanger and a heat exchange system to solve the above problems.

[0006] To achieve the above purpose, the present invention provides the following solutions:

[0007] A gas-liquid dual-flow multi-functional heat exchanger, comprising: a cabinet body, the cabinet body is arranged indoors, air outlets and air inlets are opened on the outer side wall of the cabinet body, a water distributor is fixedly connected to the top end of the cabinet body, the water distributor is communicated with a water inlet pipe, a water collector is fixedly connected to the bottom end of the cabinet body, the water collector is communicated with a water outlet pipe, the water outlet pipe is communicated with an end heat exchanger located indoors, a gas heat exchange mechanism and a liquid heat exchange mechanism are arranged in the cabinet body, the liquid heat exchange mechanism is communicated with the water distributor and the water collector, a first gas chamber is arranged between the gas heat exchange mechanism and the water distributor, the air outlet and the gas heat exchange mechanism are both communicated with the first gas chamber, a second gas chamber is arranged between the gas heat exchange mechanism and the water collector, and the gas heat exchange mechanism and the air inlet are both communicated with the second gas chamber.

[0008] In the gas-liquid double-flow multi-functional heat exchanger of the present invention, the liquid heat exchange mechanism includes a plurality of water channels arranged in the cabinet. The plurality of water channels are arranged in an array. The top end of the water channel is communicated with the water distributor, the bottom end of the water channel is communicated with the water collector, a capillary heat exchange tube is coaxially arranged in the water channel, and a heat exchange medium flows in the capillary heat exchange tube.

[0009] In the gas-liquid double-flow multi-functional heat exchanger of the present invention, the gas heat exchange mechanism includes a plurality of first air ducts and a plurality of second air ducts. The plurality of first air ducts are located between two adjacent rows of the water channels, and the second air ducts are located between two adjacent water channels in the same row. The first air ducts and the second air ducts are both communicated with the first air cavity and the second air cavity.

[0010] In the gas-liquid double-flow multi-functional heat exchanger of the present invention, a plurality of second fins are fixedly connected in the first air duct. The second fins are arranged along the length direction of the first air duct, and the plurality of second fins are arranged at intervals in sequence. A plurality of first fins are fixedly connected in the second air duct. The first fins are arranged along the length direction of the second air duct, and the plurality of first fins are arranged at intervals in sequence. The first fins and the second fins are arranged perpendicular to each other.

[0011] In the gas-liquid double-flow multi-functional heat exchanger of the present invention, metal wire fillers are filled between two adjacent second fins and between two adjacent first fins.

[0012] In the gas-liquid double-flow multi-functional heat exchanger of the present invention, the water distributor includes a water distribution housing fixedly connected to the top end of the cabinet. The top end of the water distribution housing is communicated with the water inlet pipe, the water distribution housing is communicated with the top ends of the plurality of water channels, a plurality of upper branch pipes are arranged in the water distribution housing, the plurality of upper branch pipes are arranged in one-to-one correspondence with the plurality of capillary heat exchange tubes and are communicated therewith, and the plurality of upper branch pipes penetrate out of the water distribution housing and are communicated with the upper main pipe.

[0013] In the gas-liquid double-flow multi-functional heat exchanger of the present invention, the water collector includes a water collection housing fixedly connected to the bottom end of the cabinet. The top end of the water collection housing is communicated with the plurality of water channels, the bottom end of the water collection housing is communicated with the water outlet pipe, a plurality of lower branch pipes are arranged in the water collection housing, the plurality of lower branch pipes are arranged in one-to-one correspondence with the plurality of capillary heat exchange tubes and are communicated therewith, and the plurality of lower branch pipes penetrate out of the water collection housing and are communicated with the lower main pipe.

[0014] In the gas-liquid double-flow multi-functional heat exchanger of the present invention, a filter screen is fixedly installed at the air inlet, a blower is arranged in the second air cavity, the blower is fixedly installed on the inner side wall of the cabinet, and the air outlet of the blower is located in the second air cavity.

[0015] A heat exchange system includes the gas-liquid double-flow multi-functional heat exchanger described above. The heat exchange system further includes a water storage tank. The inlet of the water storage tank is communicated with the water outlet pipe. A first water pump is arranged at the outlet of the water storage tank. The outlet of the first water pump is communicated with the terminal heat exchanger.

[0016] In the heat exchange system of the present invention, a second water pump is communicated with the outlet of the water storage tank. The second water pump is communicated with a gas water heater. The outlet of the gas water heater is communicated with the inlet of the water storage tank. An electromagnetic valve is arranged between the gas water heater and the second water pump.

[0017] Compared with the prior art, the present invention has the following advantages and technical effects:

[0018] When the heat exchanger of the present invention is in use, there are three heat exchange modes:

[0019] Convective heat exchange: The water in the cabinet does not flow and only plays a role in heat exchange. Air enters the gas heat exchange mechanism from the air inlet to achieve heat exchange. The air after heat exchange enters the room through the air outlet, realizing convective heat exchange;

[0020] Radiative heat exchange: The water in the cabinet flows. The water exchanges heat in the cabinet and then flows into the terminal heat exchanger, realizing radiative heat exchange;

[0021] Radiative-convective heat exchange: The water and air in the cabinet flow simultaneously. Air enters the gas heat exchange mechanism from the air inlet to achieve heat exchange. The air after heat exchange enters the room through the air outlet, realizing convective heat exchange. The water exchanges heat in the cabinet and then flows into the terminal heat exchanger, realizing radiative heat exchange. Since the air enters the room through the air outlet, it accelerates the air flow in the room and accelerates the change of indoor temperature. In summer, condensation on the terminal heat exchanger can be effectively avoided;

[0022] The present invention can realize different heat exchange modes, so as to meet the different needs of different people; and the air and water flow in opposite directions, and the heat exchange effect is better. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0024] Figure 1 It is the front view of the heat exchanger of the present invention;

[0025] Figure 2 It is the cross-sectional view of the heat exchanger of the present invention;

[0026] Figure 3 Cross-sectional view of the water channel in the present invention;

[0027] Figure 4 Schematic structural diagram of the water channel in the present invention;

[0028] Figure 5 Schematic structural diagram of the water distributor in the present invention;

[0029] Figure 6 Schematic structural diagram of the water collector in the present invention;

[0030] Figure 7 Schematic structural diagram of the air inlet mechanism in the present invention;

[0031] Figure 8 Schematic structural diagram of the heat exchange system in the present invention;

[0032] Wherein, 1, cabinet; 2, water distributor; 3, water collector; 4, water inlet pipe; 5, water outlet pipe; 6, air outlet; 7, air inlet; 8, water storage tank; 9, gas water heater; 10, solenoid valve; 11, second water pump; 12, first water pump; 13, terminal heat exchanger; 101, first air duct; 102, second air duct; 103, capillary heat exchange tube; 104, first fin; 105, second fin; 106, water channel; 107, metal wire filler; 201, water distribution housing; 202, upper main pipe; 203, upper branch pipe; 301, lower main pipe; 302, lower branch pipe; 303, water collection housing; 701, filter screen; 702, fan. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0035] Refer to Figures 1 to 7, the present invention discloses a gas-liquid dual-flow multi-functional heat exchanger, including: a cabinet 1, the cabinet 1 is arranged indoors, an air outlet 6 and an air inlet 7 are opened on the outer side wall of the cabinet 1, a water distributor 2 is fixedly connected to the top end of the cabinet 1, the water distributor 2 is communicated with a water inlet pipe 4, a water collector 3 is fixedly connected to the bottom end of the cabinet 1, the water collector 3 is communicated with a water outlet pipe 5, the water outlet pipe 5 is communicated with a terminal heat exchanger 13 located indoors, a gas heat exchange mechanism and a liquid heat exchange mechanism are arranged in the cabinet 1, the liquid heat exchange mechanism is communicated with the water distributor 2 and the water collector 3, a first gas chamber is arranged between the gas heat exchange mechanism and the water distributor 2, the air outlet 6 and the gas heat exchange mechanism are both communicated with the first gas chamber, a second gas chamber is arranged between the gas heat exchange mechanism and the water collector 3, the gas heat exchange mechanism and the air inlet 7 are both communicated with the second gas chamber.

[0036] Water enters the water distributor 2 through the water inlet pipe 4, enters multiple liquid heat exchange mechanisms under the action of the water distributor 2, the water exchanges heat in the liquid heat exchange mechanism, then flows into the water collector 3, and finally flows into the terminal heat exchanger 13 through the water outlet pipe 5 to realize radiant heat exchange and cool / warm the room.

[0037] Air enters the cabinet 1 through the air inlet 7, the air flow exchanges heat with water in the gas heat exchange mechanism, and then enters the room through the air inlet 7 to realize convective heat exchange and cool / warm the room.

[0038] Convective heat exchange and radiant heat exchange can be carried out separately or simultaneously, so as to realize different heat exchange modes and adapt to the different needs of different people.

[0039] The air exchanges heat with the water, and the air flows from bottom to top while the water flows from top to bottom. The flow directions of the water and the air are opposite, which further strengthens the convective heat exchange effect, increases the number of heat exchange times, increases the heat exchange amount, and improves the heat exchange efficiency.

[0040] In an alternative solution, the liquid heat exchange mechanism includes a plurality of water channels 106 arranged in the cabinet 1. The plurality of water channels 106 are arranged in an array. The top end of the water channel 106 is communicated with the water distributor 2, the bottom end of the water channel 106 is communicated with the water collector 3, and a capillary heat exchange tube 103 is coaxially arranged in the water channel 106, and a heat exchange medium flows in the capillary heat exchange tube 103.

[0041] The material of the capillary heat exchange tube 103 is copper.

[0042] The heat exchange medium flows in the capillary heat exchange tube 103, and the water flows in the water channel 106 outside the capillary heat exchange tube 103 to realize the heat exchange of the water.

[0043] In an alternative solution, the gas heat exchange mechanism includes a plurality of first air ducts 101 and a plurality of second air ducts 102. The plurality of first air ducts 101 are located between two adjacent rows of water channels 106, and the second air ducts 102 are located between two adjacent water channels 106 in the same row. Both the first air ducts 101 and the second air ducts 102 communicate with the first air cavity and the second air cavity.

[0044] Air flows in the plurality of first air ducts 101 and the plurality of second air ducts 102, and exchanges heat with the water flow in the adjacent water channels 106.

[0045] In an alternative solution, a plurality of second fins 105 are fixedly connected in the first air ducts 101. The second fins 105 are arranged along the length direction of the first air ducts 101, and the plurality of second fins 105 are arranged at intervals in sequence. A plurality of first fins 104 are fixedly connected in the second air ducts 102. The first fins 104 are arranged along the length direction of the second air ducts 102, and the plurality of first fins 104 are arranged at intervals in sequence. The first fins 104 are perpendicular to the second fins 105.

[0046] The arrangement of the first fins 104 and the second fins 105 effectively increases the heat exchange area of the air and improves the heat exchange effect of the air.

[0047] In an alternative solution, wire fillers 107 are filled between two adjacent second fins 105 and between two adjacent first fins 104.

[0048] The wire fillers 107 increase the heat exchange area of the air on the one hand, and on the other hand, disturb the air flow, further increasing the heat exchange effect of the air.

[0049] In an alternative solution, the water distributor 2 includes a water distribution housing 201. The water distribution housing 201 is fixedly connected to the top end of the cabinet body 1. The top end of the water distribution housing 201 is communicated with the water inlet pipe 4. The water distribution housing 201 is communicated with the top ends of a plurality of water channels 106. A plurality of upper branch pipes 203 are arranged in the water distribution housing 201. The plurality of upper branch pipes 203 are arranged in one-to-one correspondence with and communicated with a plurality of capillary heat exchange pipes 103. The plurality of upper branch pipes 203 pass through the water distribution housing 201 and are communicated with the upper main pipe 202.

[0050] Water enters the water distribution housing 201 through the water inlet pipe 4, and then enters the plurality of water channels 106 respectively.

[0051] The upper branch pipes 203 and the upper main pipe 202 are used for the flow of the heat exchange medium.

[0052] In an alternative embodiment, the water collector 3 includes a water collecting housing 303 fixedly connected to the bottom end of the cabinet body 1. The top end of the water collecting housing 303 is communicated with a plurality of water channels 106, and the bottom end of the water collecting housing 303 is communicated with the water outlet pipe 5. A plurality of lower branch pipes 302 are arranged in the water collecting housing 303. The plurality of lower branch pipes 302 are arranged in one-to-one correspondence with and communicated with a plurality of capillary heat exchange pipes 103. The plurality of lower branch pipes 302 penetrate through the water collecting housing 303 and are communicated with the lower main pipe 301.

[0053] The water in the plurality of water channels 106 enters the water collecting housing 303 and then flows out through the water outlet pipe 5 and into the terminal heat exchanger 13.

[0054] The lower branch pipes 302 and the lower main pipe 301 are used for the flow of the heat exchange medium.

[0055] Specifically, both the upper main pipe 202 and the lower main pipe 301 are communicated with the vapor compression heat pump unit to realize the circulating flow of the heat exchange medium.

[0056] In an alternative embodiment, a filter screen 701 is fixedly installed at the air inlet 7. A blower 702 is arranged in the second air chamber. The blower 702 is fixedly installed on the inner side wall of the cabinet body 1, and the air outlet of the blower 702 is located in the second air chamber.

[0057] The filter screen 701 prevents sundries from entering the cabinet body 1.

[0058] Refer to Figure 8 , a heat exchange system includes a gas-liquid double-flow multi-functional heat exchanger. The heat exchange system further includes a water storage tank 8. The inlet of the water storage tank 8 is communicated with the water outlet pipe 5. A first water pump 12 is arranged at the outlet of the water storage tank 8. The outlet of the first water pump 12 is communicated with the terminal heat exchanger 13.

[0059] The water that has completed heat exchange in the cabinet body 1 first enters the water storage tank 8 and then enters the terminal heat exchanger 13 under the action of the first water pump 12 to realize radiant heat exchange.

[0060] In an alternative embodiment, a second water pump 11 is communicated with the outlet of the water storage tank 8. The second water pump 11 is communicated with a gas water heater 9. The outlet of the gas water heater 9 is communicated with the inlet of the water storage tank 8. An electromagnetic valve 10 is arranged between the gas water heater 9 and the second water pump 11.

[0061] During winter heating, when the outside air is too harsh, the gas water heater 9 is turned on to heat the water at this time. The second water pump 11 feeds the heated water into the water storage tank 8, and then enters the terminal heat exchanger 13 under the action of the first water pump 12 to realize radiant heat exchange.

[0062] Working process:

[0063] The return water enters the water distributor 2 in the cabinet body 1 through the water inlet pipe 4, is shunted by the water distributor 2, and conducts convective heat exchange in the cabinet body 1. After the water is heated or cooled, it enters the water collector 3 and is then sent to the room for refrigeration or heating through the water outlet pipe 5. During this process, the fan 702 placed at the air inlet 7 is started, so that the air in the room first passes through the filter net 701 for filtering. After removing the impurities in the air, it is sent to the air inlet 7, enters the cabinet body 1 through the air inlet 7, and conducts convective heat exchange with the water indirectly in the cabinet body 1. After the air is heated or cooled, it comes out from the air outlet 6 and is sent into the indoor room for refrigeration or heating. During the whole process, the flow directions of the air flow and the water flow are reverse. Compared with the cross-flow and co-flow modes, its heat exchange effect is the best.

[0064] A plurality of water channels 106 with rectangular cross-sections are arranged in the cabinet body 1. Capillary heat exchange tubes 103 are placed in the center of each water channel 106. A large number of first air ducts 101 and second air ducts 102 are arranged between the water channels 106. Second fins 105 and first fins 104 are respectively arranged in the first air ducts 101 and the second air ducts 102, and the second fins 105 and the first fins 104 are vertically arranged. In addition, wire fillers 107 are filled between adjacent two second fins 105 and between adjacent two first fins 104; when the heat exchange medium in the capillary heat exchange tube 103 undergoes a phase change, it will absorb or release a large amount of heat from the water in the water channel 106. The cooled or heated water will be sent into the room for further heat exchange to realize the refrigeration or heating of the room. The air flow in the first air ducts 101 and the second air ducts 102 is reverse to the water flow in the water channels. Coupled with the fact that the first air ducts 101 and the second air ducts 102 are filled with wire fillers 107, it causes disturbances during the air flow, which is easy to form a large number of small eddies. All these factors significantly increase the convective heat exchange effect between the air and the water. The air that is cooled or heated enters the room for refrigeration or heating.

[0065] The heat exchange medium is shunted from the lower main pipe 301, enters the lower branch pipe 302, then enters each capillary heat exchange tube 103, reaches the upper branch pipe 203, and finally converges into the upper main pipe 202. The return water enters the cabinet body 1 through the water inlet pipe 4, flows out from the water outlet pipe 5 after heat exchange with the capillary heat exchange tube 103, and is finally sent to the room for refrigeration or heating. The flow direction of the heat exchange medium is still reverse to the flow direction of the water, which is beneficial to heat exchange.

[0066] The cold or hot water coming out of the cabinet 1 enters the water storage tank 8 through the inlet of the water storage tank 8, and then, driven by the first water pump 12, enters the end heat exchanger 13 of the room through the outlet of the water storage tank 8 for radiant heat exchange or convective heat exchange. During winter heating, if the external environment is relatively harsh and the efficiency of heating with a vapor compression heat pump unit is low, the vapor compression heat pump unit can be turned off, the solenoid valve 10 can be opened, and the gas water heater 9 can be used to heat the water. The power is provided by the second water pump 11 and sent into the water storage tank 8, and then finally sent into the room for heating.

[0067] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0068] The embodiments described above are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A gas-liquid double-flow multi-functional heat exchanger, characterized in that, Including: A cabinet body (1), the cabinet body (1) is arranged indoors, an air outlet (6) and an air inlet (7) are formed on the outer side wall of the cabinet body (1), a water distributor (2) is fixedly connected to the top end of the cabinet body (1), the water distributor (2) is communicated with a water inlet pipe (4), a water collector (3) is fixedly connected to the bottom end of the cabinet body (1), the water collector (3) is communicated with a water outlet pipe (5), the water outlet pipe (5) is communicated with a terminal heat exchanger (13) located indoors, a gas heat exchange mechanism and a liquid heat exchange mechanism are arranged in the cabinet body (1), the liquid heat exchange mechanism is communicated with the water distributor (2) and the water collector (3), a first gas chamber is arranged between the gas heat exchange mechanism and the water distributor (2), the air outlet (6) and the gas heat exchange mechanism are both communicated with the first gas chamber, a second gas chamber is arranged between the gas heat exchange mechanism and the water collector (3), and the gas heat exchange mechanism and the air inlet (7) are both communicated with the second gas chamber.

2. The gas-liquid dual-flow multi-functional heat exchanger according to claim 1, characterized in that: The liquid heat exchange mechanism includes a plurality of water channels (106) arranged in the cabinet body (1), the plurality of water channels (106) are arranged in an array, the top end of the water channel (106) is communicated with the water distributor (2), the bottom end of the water channel (106) is communicated with the water collector (3), a capillary heat exchange tube (103) is coaxially arranged in the water channel (106), and a heat exchange medium flows in the capillary heat exchange tube (103).

3. The multi-functional heat exchanger with a gas-liquid double flow path according to claim 2, characterized in that: The gas heat exchange mechanism includes a plurality of first air ducts (101) and a plurality of second air ducts (102), the plurality of first air ducts (101) are located between two adjacent rows of the water channels (106), the second air ducts (102) are located between two adjacent water channels (106) in the same row, and the first air ducts (101) and the second air ducts (102) are both communicated with the first gas chamber and the second gas chamber.

4. The gas-liquid two-flow-path multifunctional heat exchanger according to claim 3, characterized in that: A plurality of second fins (105) are fixedly connected in the first air duct (101), the second fins (105) are arranged along the length direction of the first air duct (101), the plurality of second fins (105) are arranged at intervals in sequence, a plurality of first fins (104) are fixedly connected in the second air duct (102), the first fins (104) are arranged along the length direction of the second air duct (102), the plurality of first fins (104) are arranged at intervals in sequence, and the first fins (104) are perpendicular to the second fins (105).

5. The gas-liquid dual-flow multi-functional heat exchanger according to claim 4, wherein: Wire fillers (107) are filled between two adjacent second fins (105) and between two adjacent first fins (104).

6. The gas-liquid double-flow multi-functional heat exchanger according to claim 2, characterized in that: The water distributor (2) includes a water distribution housing (201), the water distribution housing (201) is fixedly connected to the top end of the cabinet body (1), the top end of the water distribution housing (201) is communicated with the water inlet pipe (4), the water distribution housing (201) is communicated with the top ends of a plurality of the water channels (106), a plurality of upper branch pipes (203) are arranged in the water distribution housing (201), the plurality of upper branch pipes (203) are arranged in one-to-one correspondence with and communicated with a plurality of the capillary heat exchange tubes (103), and the plurality of upper branch pipes (203) penetrate through the water distribution housing (201) and are communicated with an upper main pipe (202).

7. The gas-liquid dual-flow multi-functional heat exchanger according to claim 2, wherein: The water collector (3) includes a water collection housing (303), the water collection housing (303) is fixedly connected to the bottom end of the cabinet body (1), the top end of the water collection housing (303) is communicated with a plurality of the water channels (106), the bottom end of the water collection housing (303) is communicated with the water outlet pipe (5), a plurality of lower branch pipes (302) are arranged in the water collection housing (303), the plurality of lower branch pipes (302) are arranged in one-to-one correspondence with and communicated with a plurality of the capillary heat exchange tubes (103), and the plurality of lower branch pipes (302) penetrate through the water collection housing (303) and are communicated with a lower main pipe (301).

8. The multi-functional heat exchanger with a gas-liquid double flow path according to claim 1, characterized in that: A filter screen (701) is fixedly installed at the air inlet (7), a fan (702) is arranged in the second air chamber, the fan (702) is fixedly installed on the inner side wall of the cabinet body (1), and the air outlet of the fan (702) is located in the second air chamber.

9. A heat exchange system, characterized in that, It includes the gas-liquid double-flow path multifunctional heat exchanger according to any one of claims 1-8. The heat exchange system further includes a water storage tank (8), the inlet of the water storage tank (8) is communicated with the water outlet pipe (5), a first water pump (12) is arranged at the outlet of the water storage tank (8), and the outlet of the first water pump (12) is communicated with the terminal heat exchanger (13).

10. A heat exchange system according to claim 9, characterized in that: The outlet of the water storage tank (8) is communicated with a second water pump (11), the second water pump (11) is communicated with a gas water heater (9), the outlet of the gas water heater (9) is communicated with the inlet of the water storage tank (8), and a solenoid valve (10) is arranged between the gas water heater (9) and the second water pump (11).

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