A compact terminal heat exchanger with adaptive condensation for heating and cooling

Abstract

The present invention discloses a compact terminal heat exchanger with adaptive condensation for heating and cooling, comprising a heat exchange plate, the heat exchange plate being connected to a wall and having a distance from the wall; the heat exchange plate having a built-in medium channel, the heat exchange plate having fins arranged at a certain distance on the side facing the wall, and having a longitudinal plate guide groove on the side facing the room, and a condensation tray being provided at the bottom of the heat exchange plate, the plate guide groove being connected to the condensation tray so that the condensed water flowing down can be collected by the condensation tray. The present invention can be arranged on the side of the wall to meet the heating and cooling needs of users, and has the characteristics of being compact, beautiful, and noiseless.

Description

Technical Field

[0001] The present invention belongs to the field of heat exchange technology, and in particular relates to a compact terminal heat exchanger with adaptive condensation for heating and cooling, which is suitable for residential, office and other scenarios. Background Art

[0002] The indoor environment is one of the most frequent environments that humans come into contact with, and it has a significant impact on people's work efficiency, mood and physical condition. As people's requirements for indoor environment increase, heating and cooling air conditioning systems have gradually become an indispensable technical means to ensure comfort. The terminal heat exchanger is an important part of the building's indoor air conditioning system. It is located at the end of the heating and cooling system pipeline and directly affects the indoor air quality.

[0003] At present, the commonly used refrigeration equipment includes fan coil units, capillary networks, fans, etc., and the commonly used heating equipment includes fan coil units, capillary networks, floor heating, radiators, etc. Among them, the heat exchange equipment that can meet the heating and cooling needs of the room at the same time mainly includes fan coil units and capillary networks. The fan coil unit consists of a small fan, a motor, a coil (air / water heat exchanger) and a condensate tray. The air is sucked in and pressurized by the fan and passes through the fin gap of the coil to exchange heat with the coil, thereby controlling the room temperature. It has the advantages of small size, flexible layout, independent control and adjustment, and suitable for the renovation of existing buildings. It has been widely used in public building air conditioning systems. However, fan coil products have the problems of high noise and poor airflow organization, which seriously affect the comfort of the indoor environment. The capillary network is composed of capillary tube bundles and water collection pipes. In winter, the higher temperature radiant heating terminal equipment exchanges radiation heat with the room enclosure structure, and at the same time conducts convection heat exchange with the indoor air to control the room temperature, and achieves cooling in summer. It has the characteristics of no blowing feeling, no noise and uniform temperature distribution. However, the capillary network mainly adopts the natural convection heat exchange form, which leads to small heat exchange per unit area and large required heat exchange area. At the same time, it is easy to condense in summer, so an additional dehumidification system is needed to prevent condensation, which increases the construction cost.

[0004] As people's requirements for living environment comfort continue to increase, there is currently a lack of noise-free, low-cost, compact and beautiful integrated heating and cooling terminal heat exchangers that can simultaneously handle condensation problems. Summary of the invention

[0005] In view of the problems existing in the existing terminal heat exchangers, the purpose of the present invention is to provide a compact terminal heat exchanger with adaptive condensation for integrated heating and cooling, which can be arranged on the side of the wall to meet the heating and cooling needs of users and has the characteristics of being compact, beautiful and noiseless.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A compact terminal heat exchanger with adaptive condensation for integrated heating and cooling, comprising a heat exchange plate, which is connected to a wall and has a distance from the wall; the heat exchange plate has a built-in medium channel, and the side of the heat exchange plate facing the wall is provided with fins arranged at a certain distance, and the side facing the room is provided with longitudinal plate surface guide grooves, and a condensate tray is provided at the bottom of the heat exchange plate, and the plate surface guide grooves are connected to the condensate tray so that the condensed water flowing down can be collected by the condensate tray.

[0008] In one embodiment, the heat exchange plate is fixedly connected to the wall via a fixed connection structure at the top; the fixed connection structure comprises a heat exchange plate fixing device and a wall fixing groove, the wall fixing groove is fixed to the wall, and its groove length direction is horizontal and parallel to the wall surface of the wall; the heat exchange plate fixing device comprises a first vertical portion, a second vertical portion and an intermediate connecting portion, the first vertical portion is connected to the top end of the heat exchange plate, the intermediate connecting portion connects the first vertical portion and the second vertical portion, and the second vertical portion is used to be clamped in the wall fixing groove to achieve fixed connection between the heat exchange plate and the wall.

[0009] In one embodiment, the wall fixing groove is fixed to the wall via a heat insulating column.

[0010] In one embodiment, the fins are arranged longitudinally and have fin guide grooves thereon.

[0011] In one embodiment, the fin guide groove is an elliptical hole or a strip hole that penetrates the fin and is obliquely distributed on the surface of the fin to guide the condensed water on the surface of the fin to the condensate tray.

[0012] In one embodiment, the cross-section of the plate guide groove is semicircular or elliptical, the cross-section of the medium channel is rectangular or circular, the refrigerant or heat medium is passed into the medium channel, and the inlet and outlet of the medium channel are welded to the heat exchange plate. The medium enters and exits through the header, and a baffle is added to the header to change the flow direction of the medium.

[0013] In one embodiment, the distance between the contact surface of the heat exchange plate and the fin and the wall is 50-100 mm, and the distance from the roof is 100-300 mm; the height of the fin is 10-150 mm, the thickness is 1-2 mm, and the fin spacing is 10-20 mm, where the height refers to the dimension of the fin perpendicular to the direction of the heat exchange plate.

[0014] In one embodiment, the condensate tray is fixed to the bottom of the heat exchange plate by means of a buckle to collect condensate generated on the surface of the fins, and its width is consistent with the width of the heat exchange plate.

[0015] In one embodiment, the length and width of the heat exchange plate are selected according to the room's cooling and heating loads, so that when the heat exchanger is arranged in a circle around the room, the overall heat exchange capacity of the heat exchanger is equivalent to the room load. If the load can be guaranteed to be equivalent without arranging in a circle, a method of symmetrical arrangement around the room is adopted to ensure uniform temperature distribution in various areas of the room.

[0016] In one embodiment, the overall heat exchange capacity of the heat exchanger is equivalent to the total load of the room, that is, the total load of the room = heat exchange capacity of the heat exchanger × the layout length of the heat exchanger; considering the savings in layout cost and layout space, there are three recommended models of heat exchanger with summer heat exchange capacity of 50W / m, 100W / m, and 150W / m to choose from, and the corresponding winter heat exchange capacities are 82W / m, 150W / m, and 220W / m respectively. A heat exchanger model that can be arranged in a circle in the room is selected for installation.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) High comfort. Quiet, minimal interference to indoor air flow.

[0019] (2) Small space occupation. The heat exchanger of the present invention has a compact structure, a small heat exchange plate, and is installed above the room, making full use of the room space.

[0020] (3) It has an adaptive condensation function. The heat exchange plate is provided with fins on the side close to the wall and a guide groove is provided on the surface of the fin, which can increase the heat exchange area and guide the generated condensed water into the condensation tray under the heat exchange plate through the guide groove.

[0021] (4) Flexible control of integrated heating and cooling. It can realize cooling and heating functions at the same time according to user requirements, and match the corresponding length of heat exchanger according to the actual load requirements of the room, which can meet the requirements of human comfort throughout the year. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the heat exchange plate structure of the present invention.

[0023] Figure 2 The figure is a schematic diagram of the installation of the present invention on a wall.

[0024] Figure 3 It is the front view of the installation of the present invention on the wall.

[0025] Figure 4 It is the left view of the installation of the present invention on the wall.

[0026] Figure 5 The figure is a top view of the installation of the present invention on a wall.

[0027] Figure 6Schematic diagram of different types of finned tube structures with equal heat transfer area.

[0028] Figure 7 Comparison of heat transfer capacity of different types of heat exchangers.

[0029] In the figure: 1. heat exchange plate fixing device, 2. heat exchange plate, 3. plate surface guide groove, 4. condensate tray fixing port, 5. medium channel, 6. fin, 7. fin guide groove, 8. condensate tray, 9. wall fixing groove, 10. wall, 11. insulation column. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below with reference to the accompanying drawings and examples.

[0031] In view of the problems existing in the existing terminal heat exchangers, the present invention proposes a compact terminal heat exchanger with adaptive condensation for heating and cooling integration that takes into account the requirements of hot and cold integration, compactness, beauty, and noiselessness. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the heat exchanger includes a heat exchange plate 2 with a built-in medium channel 5. The heat exchange plate 2 can be made of aluminum alloy, steel, copper and other materials. It can be connected to the wall 10, preferably installed on the walls 10 around the room, and has a certain distance from the wall 10. Among them, the heat exchange plate 2 is provided with fins 6 on the side facing the wall 10, and a plate guide groove 3 is provided on the side facing the room. The fins 6 are arranged at a certain interval, and the plate guide groove 3 is arranged longitudinally as a whole, which can be a through groove that penetrates the plate surface, or a non-through groove, and the cross section can be semicircular or elliptical. A condensation tray 8 is provided at the bottom of the heat exchange plate 2, and the plate guide groove 3 penetrates downward to the condensation tray 8, so that the condensed water flowing down can be collected by the condensation tray 8.

[0032] The medium channel 5 is a flow channel for the heat exchange medium, and its cross section is generally rectangular or circular. The heat exchange medium can be a refrigerant or a heat medium, which can meet the needs in summer and winter respectively. The heat exchange medium passes into the medium channel 5 and exchanges heat with the outside through the heat exchange plate 2 and the fin 6. For example, a header can be welded on the heat exchange plate 2 for the inlet and outlet of the medium channel 5, and the heat exchange medium enters and exits through the header, and a baffle can be added in the header to change the flow direction of the medium.

[0033] A form of connection and fixing between the heat exchange plate 2 and the wall 10. Specifically, the heat exchange plate 2 is fixedly connected to the wall 10 through a fixed connection structure at the top thereof. It is easy to understand that this fixed connection is detachable. The fixed connection structure mainly includes a heat exchange plate fixing device 1 and a wall fixing groove 9. The heat exchange plate fixing device 1 and the fixing groove 9 cooperate to fix the heat exchange plate 2. The wall fixing groove 9 is a part directly fixed to the wall 10, and its groove length direction is horizontal and parallel to the wall surface of the wall 10. In this embodiment, the heat exchange plate fixing device 1 includes a first vertical portion, a second vertical portion and an intermediate connecting portion, wherein the first vertical portion is fixedly connected to the top of the heat exchange plate 2 by welding or the like, the intermediate connecting portion connects the first vertical portion and the second vertical portion, and the second vertical portion is stuck in the wall fixing groove 9, so that the heat exchange plate 2 can be fixedly connected to the wall.

[0034] For example, the wall fixing groove 9 is a single groove with an opening upward, and accordingly, the bottom end of the second vertical portion is inserted into the single groove to achieve a fixed connection. Alternatively, the wall fixing groove 9 includes a first groove with an opening upward and a second groove with an opening downward, and accordingly, the bottom end of the second vertical portion is inserted into the first groove, and the top end is inserted into the second groove to achieve a fixed connection, and in this case, the middle connecting portion can be connected to the middle position of the second vertical portion. Insulating material can be provided at the contact portion between the wall fixing groove 9 and the heat exchange plate fixing device 1 to prevent the wall fixing groove 9 from being too low to generate condensed water. The wall fixing groove 9 can be connected to the wall by a hexagonal bolt, and an insulating column 11 is provided between the wall fixing groove 9 and the wall 10.

[0035] Furthermore, in order to avoid transferring heat / cold to the wall 10, the wall fixing groove 9 should not be directly attached to the wall 10, but can be connected and fixed through a plurality of heat-insulating columns 11. In this case, the wall fixing groove 9 includes a connecting plate and grooves at the lower end or upper and lower ends of the connecting plate, and the connecting plate is connected to the wall 10 through the heat-insulating columns 11. Energy can be saved and energy consumption of the wall can be avoided.

[0036] In some embodiments of the present invention, each fin 6 is arranged longitudinally and has a fin guide groove 7 thereon. The fin guide groove 7 is a through groove that penetrates the fin 6, or a non-through groove that is only opened on the surface of the fin 6. The overall shape is inclined downward and is obliquely distributed on the surface of the fin 6 to guide the condensed water on the fin surface generated in summer to the condensation tray 8, which can be an elliptical hole or a strip hole, and can have a certain curvature, obtained by cutting on the surface of the fin 6. At different heights, the curvature or slope can be different to take into account both the condensed water guidance and the heat exchange effect.

[0037] In some embodiments of the present invention, the condensate pan 8 is fixed to the bottom of the heat exchange plate 2 by means of a buckle or the like. Its main function is to collect condensed water generated on the surface of the fins. It uses a heat-insulating PVC material to prevent condensed water generated at the bottom of the condensate pan from dripping into the room. At the same time, the width is consistent with the width of the heat exchange plate 2, which can prevent the condensate pan from being too wide and hindering air flow. For example, a condensate pan fixing port 4 is provided below the heat exchange plate 2, and the condensate pan 8 is fixed through the condensate pan fixing port 4.

[0038] The surfaces of the heat exchange plates 2 and fins 6 of the present invention may be coated with hydrophobic material.

[0039] In some embodiments of the present invention, by performing a large number of numerical calculations on the structural parameters of the terminal heat exchanger, some optimal parameters are obtained. The distance between the contact surface of the heat exchange plate 2 and the fin 6 and the wall 10 is 50-100mm, and the distance from the roof is 100-300mm; the height of the fin 6 is 10-150mm, the thickness is 1-2mm, and the fin spacing is 10-20mm. It is further preferred that the fin spacing is 10-15mm, the installation position of the terminal heat exchanger should be 200-300mm away from the top, and the terminal heat exchanger is 20-100mm away from the nearest position of the surrounding walls. The fin height refers to the dimension of the fin 6 perpendicular to the direction of the heat exchange plate 2. The fin 6 is used to increase the heat exchange area of ​​the heat exchanger to improve the heat exchange capacity of the heat exchanger.

[0040] The length and width of the heat exchange plate 2 are selected according to the room's cooling and heating loads, so that when the heat exchanger is arranged in a circle around the room, the overall heat exchange capacity of the heat exchanger is equivalent to the room load. If the load can be guaranteed to be equivalent without arranging in a circle, a method of symmetrical arrangement around the room is adopted to ensure uniform temperature distribution in various areas of the room.

[0041] The operating process and principle of the present invention using the above device to adjust the temperature of room air are as follows:

[0042] In summer, low-temperature refrigerant is introduced into the medium flow channel of the heat exchange plate to cause convection heat exchange with the inner wall of the heat exchange plate. Subsequently, the cold is transferred to the heat exchange plate and the fin surface by heat conduction. As the density of the air increases when it is cooled, the air moves downward under the action of gravity, while the hot air in the room moves upward, causing natural convection heat exchange between the heat exchange plate and the fin surface and the indoor air. Due to the temperature difference between the surfaces in the room and the surface of the heat exchange plate, radiation heat exchange occurs between the heat exchange equipment and the surfaces of the indoor enclosure, personnel and equipment. If the indoor air humidity is high, condensation heat exchange occurs between the heat exchange plate and the fin surface and the indoor air. The condensed water generated on the surface of the heat exchange plate flows directly into the condensate tray, and the condensed water generated on the surface of the fin enters the condensate tray through its guide groove.

[0043] In winter, high-temperature heat medium is introduced into the flow channel of the heat exchange plate, and convection heat exchange occurs with the inner wall of the heat exchange plate. Subsequently, the heat is transferred to the heat exchange plate and the fin surface by heat conduction. As the density of air decreases when it encounters heat, the air moves upward under the action of buoyancy, causing the heat exchange plate and the fin surface to exchange heat with the indoor air by natural convection. Hot air gathers at the top, forming a hot air vortex above the room, and cold air gathers at the bottom, forming a cold air vortex below the room. Heat exchange occurs at the junction between the two, causing the overall temperature of the room to rise. Due to the temperature difference between the surfaces in the room and the surface of the heat exchange plate, radiation heat exchange occurs between the heat exchange equipment and the surfaces of the indoor enclosure structure, personnel and equipment.

[0044] For summer cooling conditions:

[0045] Assume that after simulation calculation using fluent, it is obtained that when the height of the heat exchanger plate is 200mm, the thickness of the heat exchanger plate and the fin is 1mm, the length and width distribution of the rectangular flow channel section in the heat exchanger plate is 3×5mm, the fin spacing is 15mm, and the fin height is 35mm, the heat exchanger plate is arranged 200mm from the top of the room, and the fin is 80mm away from the surrounding walls on the side away from the heat exchanger plate. When the indoor and outdoor design temperatures are 26℃ / 35℃ respectively, and the inlet and outlet temperatures of the heat exchanger are 16℃ / 18℃ respectively, the heat exchange capacity of the heat exchanger is 50W / m. If the total load of a 5m×5m room is 1000W, 20m is required to be arranged, which just meets the room load requirements and can cover the room around, making the indoor temperature uniform.

[0046] Assume that the height of the heat exchange plate is 300mm, the thickness of the heat exchange plate and the fin is 1mm, the length and width distribution of the rectangular flow channel section in the heat exchange plate is 3mm×5mm, the fin spacing is 15mm, and the fin height is 75mm. The heat exchange plate is arranged 200mm away from the top of the room, and the fin is 80mm away from the surrounding walls on the side away from the heat exchange plate. The indoor and outdoor design temperatures are 26℃ / 35℃ respectively, and the inlet and outlet temperatures of the heat exchanger are 16℃ / 18℃ respectively. Numerical calculation is performed based on this structural parameter, and it can be known that the heat exchange capacity of the heat exchanger is 100W / m. If the total load of a 5m×5m room is 2000W, 20m is required to be arranged, which just meets the room load requirements and can cover the whole room, so that the indoor temperature is uniform.

[0047] Assume that the height of the heat exchange plate is 400mm, the thickness of the heat exchange plate and the fin is 1mm, the length and width distribution of the rectangular flow channel section in the heat exchange plate is 3*5mm, the fin spacing is 15mm, and the fin height is 110mm. The heat exchange plate is arranged 200mm away from the top of the room, and the fin is 80mm away from the surrounding walls on the side away from the heat exchange plate. The indoor and outdoor design temperatures are 26℃ / 35℃ respectively, and the inlet and outlet temperatures of the heat exchanger are 16℃ / 18℃ respectively. Numerical calculation is performed based on this structural parameter, and it can be known that the heat exchange capacity of the heat exchanger is 150W / m. If the total load of a 5m*5m room is 3000W, 20m is required to be arranged, which just meets the room load requirements and can cover the whole room, so that the indoor temperature is uniform.

[0048] The above three types have different heat exchange capacities and are suitable for different cooling load scenarios. In addition, the heat exchanger is a natural convection heat exchanger with limited heat exchange capacity. The maximum room area that can be adapted is obtained through theoretical calculation as shown below.

[0049] Table 1 50W / m heat exchanger can be adapted to the room area

[0050]

[0051]

[0052] Table 2 100W / m heat exchanger can be adapted to the room area

[0053]

[0054]

[0055] Table 3 150W / m heat exchanger can be adapted to the room area

[0056]

[0057]

[0058] According to the data in the table, when the room's cooling load is less than or equal to the unit area cooling load, a suitable heat exchanger can be selected for installation according to the room size and load requirements. The applicable range of the heat exchanger in the above table basically covers all common room types, which shows that the heat exchanger plate has universal applicability. When using it, you only need to divide the room's cooling load by the heat exchange capacity of the heat exchanger to get the layout length of the heat exchanger. If you arrange it according to the above rules, you can meet the room's cooling requirements.

[0059] Since winter working conditions are easier to meet than summer working conditions, corresponding to the above 50W / m, 100W / m, 150W / m heat exchanger structures, when the indoor and outdoor design temperatures in winter are 22℃ / -3.4℃ respectively, and the heat exchanger inlet and outlet temperatures are 32.5℃ / 37.5℃ respectively, the heat exchange capacities of the heat exchangers are 82W / m, 150W / m, and 220W / m respectively. For different room loads, it only needs to change the height of the heat exchanger and the fin height to be applicable to various complex practical engineering problems.

[0060] According to the heat exchange plate structural parameters of 50W / m heat transfer, the heat exchange capacity of two tube-fin heat exchangers with the same heat transfer area under the same working conditions and the structure of the present invention are numerically calculated. The specific structure of the tube-fin heat exchanger is as follows: Figure 6 shown.

[0061] Considering the different fin forms, the condensate tray is not considered in the calculation, and the heat transfer capacity of each heat exchanger is obtained as follows: Figure 7 As shown. Under the same heat exchange area, the heat exchange capacity of the heat exchange plate is higher than that of the tube-fin heat exchanger a and the tube-fin heat exchanger b. At the same time, the structure of the present invention occupies a smaller wall area than the tube-fin heat exchanger b, which can save more space. The metal thermal strength of the tube-fin heat exchanger a is the largest, and the heat exchange capacity per unit mass of metal is higher, but it occupies a larger area and cannot be used in residential houses with limited space. The metal thermal strength of the present invention is smaller than that of the fin-tube heat exchanger a, and the required cost is greater than that of the fin-tube heat exchanger a, but the rear fin of the present invention is more convenient and more beautiful to install than that of the fin-tube heat exchanger a.

[0062] In general, the compact terminal heat exchanger with adaptive condensation for heating and cooling designed by the present invention is noise-free and has no blowing feeling, and has good comfort compared with fan coil units. Compared with the capillary network, the present invention can adaptively process the condensation water generated by summer cooling, and has a compact structure, which is easy to install, disassemble and clean.

Claims

1. A compact terminal heat exchanger with adaptive condensation for heating and cooling, characterized in that: The invention comprises a heat exchange plate (2), wherein the heat exchange plate (2) is connected to a wall (10) and has a spacing with the wall (10); the heat exchange plate (2) has a built-in medium channel (5); the side of the heat exchange plate (2) facing the wall (10) is provided with fins (6) arranged at a certain spacing; the side facing the room is provided with a longitudinal plate surface guide groove (3); the fins (6) are arranged longitudinally and have fin guide grooves (7) thereon; a condensate tray (8) is provided at the bottom of the heat exchange plate (2); the plate surface guide groove (3) is connected to the condensate tray (8) so that the condensed water flowing down can be collected by the condensate tray (8); the fin guide groove (7) is an elliptical hole or a strip hole penetrating the fin (6), and is obliquely distributed on the surface of the fin (6) to guide the condensed water on the fin surface to the condensate tray (8); The heat exchange plate (2) is fixedly connected to the wall via a fixed connection structure at the top; the fixed connection structure comprises a heat exchange plate fixing device (1) and a wall fixing groove (9); the wall fixing groove (9) is fixed to the wall (10), and its groove length direction is horizontal and parallel to the wall surface of the wall (10); the heat exchange plate fixing device (1) comprises a first vertical portion, a second vertical portion and an intermediate connecting portion; the first vertical portion is connected to the top end of the heat exchange plate (2); the intermediate connecting portion connects the first vertical portion and the second vertical portion; the second vertical portion is used to be clamped in the wall fixing groove (9) to achieve fixed connection between the heat exchange plate (2) and the wall.

2. The adaptive condensate heating and cooling integrated compact terminal heat exchanger according to claim 1 is characterized in that: The wall fixing groove (9) is fixed to the wall (10) via a heat insulating column (11).

3. The adaptive condensate heating and cooling integrated compact terminal heat exchanger according to claim 1 is characterized in that: The cross-section of the plate guide groove (3) is semicircular or elliptical, and the cross-section of the medium channel (5) is rectangular or circular. A refrigerant or a heat medium is introduced into the medium channel (5). The inlet and outlet of the medium channel (5) are welded to the heat exchange plate (2). The medium enters and exits through the header, and a baffle is added to the header to change the flow direction of the medium.

4. The adaptive condensate heating and cooling integrated compact terminal heat exchanger according to claim 1 is characterized in that: The distance between the contact surface between the heat exchange plate (2) and the fin (6) and the wall (10) is 50-100 mm, and the distance from the roof is 100-300 mm; the height of the fin (6) is 10-150 mm, the thickness is 1-2 mm, and the fin spacing is 10-20 mm, wherein the height refers to the dimension of the fin (6) perpendicular to the direction of the heat exchange plate (2).

5. The adaptive condensate heating and cooling integrated compact terminal heat exchanger according to claim 1 is characterized in that: The condensate tray (8) is fixed to the bottom of the heat exchange plate (2) by means of a snap-fit, and is used to collect condensate generated on the surface of the fins. The width of the condensate tray (8) is consistent with the width of the heat exchange plate (2).

6. The adaptive condensate heating and cooling integrated compact terminal heat exchanger according to claim 1 is characterized in that: The length and width of the heat exchange plate (2) are selected according to the room's cooling and heating loads, so that when the heat exchanger is arranged in a circle around the room, the overall heat exchange capacity of the heat exchanger is equivalent to the room load. If the load can be guaranteed to be equivalent without arranging in a circle, a method of symmetrical arrangement around the room is adopted to ensure uniform temperature distribution in various areas of the room.

7. The adaptive condensate heating and cooling integrated compact terminal heat exchanger according to claim 6 is characterized in that: The overall heat exchange capacity of the heat exchanger is equivalent to the total load of the room, that is, total load of the room = heat exchange capacity of the heat exchanger × layout length of the heat exchanger; considering the savings in layout cost and layout space, there are three recommended models of heat exchanger with summer heat exchange capacity of 50W / m, 100W / m and 150W / m to choose from, and the corresponding winter heat exchange capacities are 82W / m, 150W / m and 220W / m respectively. A heat exchanger model that can be arranged in a circle in the room is selected for installation.

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