Clean room dehumidifying air conditioning device

Abstract

The application relates to the technical field of dehumidification air conditioning, in particular to a clean room dehumidification air conditioning equipment, which comprises an air filter, an evaporator, a condenser, a fan, a compressor and a refrigerant pipeline, the evaporator comprises an outer shell, heat exchange pipes and heat exchange fins, and the outer shell is a rectangular box structure; positioning supports are arranged on the side walls of the straight pipe parts of the heat exchange pipes, and the heat exchange fins are arranged in a combination of a manifold, fin bodies and clamping seats, so that the clamping seats and the positioning supports are connected in cooperation through the clamping grooves formed by the clamping seats and the positioning supports, the heat exchange fins are installed to simultaneously position and connect the adjacent heat exchange pipes, the convenience of the assembly connection of the heat exchange pipes and the heat exchange fins is effectively improved, the clamping seats can effectively increase the contact area with the heat exchange pipes, the heat exchange efficiency of the fin bodies and the heat exchange pipes is effectively improved, the overall heat exchange effect of the evaporator is effectively improved, and the operation effect of the clean room dehumidification air conditioning equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dehumidification air conditioning, in particular to a clean room dehumidification air conditioning equipment. BACKGROUND

[0002] The clean room dehumidification air conditioner is a special air conditioning system designed for the clean room environment, which integrates air purification, accurate temperature and humidity control, and dehumidification. The core goal is to maintain stable temperature and humidity range (especially low humidity requirement) and strict air cleanliness level in the clean room, and it is widely used in industries sensitive to environment such as semiconductor, electronics, pharmaceutical, biological medical treatment, food processing, etc.

[0003] The existing patent file with the announcement number CN116906995B discloses an oscillation dehumidification air conditioning system, which includes a compressor system, a first reversing component, a second reversing component, a condenser, a main evaporator and a secondary evaporator. The output end of the compressor system is connected with the input end of the condenser. The output end of the compressor system is also connected with the first end of the main evaporator and the first end of the secondary evaporator through the first reversing component. The output end of the condenser is connected with the second end of the main evaporator, the second end of the secondary evaporator and the input end of the compressor system through the second reversing component. The first reversing component and the second reversing component are used to switch the working state of the main evaporator, which includes dehumidification state and defrosting state. When in the dehumidification state, the refrigerant working medium output by the condenser is output to the main evaporator for circulation. When in the defrosting state, the refrigerant working medium output by the compressor system is directly output to the main evaporator for circulation.

[0004] However, the evaporator in the above-mentioned scheme and the existing technology is a combination of heat exchange pipes and heat exchange fins. The conventional heat exchange fins are in a sheet-shaped multilayer form. The water droplets condensed on the heat exchange fins will flow and drop from top to bottom, so that the water on the heat exchange fins cannot be separated from the heat exchange fins in time, and the water droplets on the heat exchange fins will remain for a long time, thereby affecting the overall heat exchange effect of the heat exchange fins. And the remaining water droplets will be re-evaporated under the action of air flow, thereby affecting the overall dehumidification effect of the clean room dehumidification air conditioner to some extent. Therefore, the present application proposes a clean room dehumidification air conditioning equipment to solve the above problems. SUMMARY

[0005] The present application aims to provide a clean room dehumidification air conditioning equipment to solve the problems raised in the background art.

[0006] To achieve the above object, the present application provides the following technical scheme: a clean room dehumidification air conditioning equipment, comprising an air filter, an evaporator, a condenser, a fan, a compressor and a refrigerant pipeline, the evaporator comprises:

[0007] An outer shell, which is a rectangular box structure, is provided with an air inlet on the front end, the air inlet is connected with the air filter through a primary air duct, the outer shell is provided with an air outlet on the rear end, the air outlet is connected with the condenser through a secondary air duct, the outer shell is fixedly installed with a primary refrigerant pipeline and a secondary refrigerant pipeline, the outer side end of the primary refrigerant pipeline is connected with the outlet end of the compressor, the outer side end of the secondary refrigerant pipeline is connected with the inlet end of the condenser, the bottom surface of the outer shell is provided with a liquid discharge port, and a liquid discharge pipeline is connected to the liquid discharge port.

[0008] A heat exchange pipe, which is arranged in a continuous U shape, is arranged in the inner cavity of the outer shell, the inlet of the heat exchange pipe is connected with the primary pipeline connection port of the primary refrigerant pipeline, and the outlet of the heat exchange pipe is connected with the secondary pipeline connection port of the secondary refrigerant pipeline.

[0009] A heat exchange fin is arranged in connection with the heat exchange pipe, a plurality of heat exchange pipes are arranged at equal intervals in the outer shell, and the heat exchange fin is used for positioning and connecting adjacent heat exchange pipes.

[0010] Preferably, the adjacent straight pipes on the adjacent heat exchange pipes are arranged in a matrix, the heat exchange fin is used for positioning and connecting four heat exchange pipe straight pipes to form the smallest matrix, a plurality of groups of rectangular channel structures are formed between the heat exchange fins, and the setting direction of the rectangular channels is parallel to the gas flow direction in the outer shell.

[0011] Preferably, the straight pipe portion of the heat exchange pipe is integrally formed with a positioning support on the side wall, the positioning support is arranged in a T shape, four positioning supports are uniformly arranged around the side wall of the heat exchange pipe, the positioning supports are arranged in a cross shape, a clamping groove is formed between adjacent positioning supports, and the clamping groove is arranged in an open type.

[0012] Preferably, the heat exchange fin comprises a manifold, a fin body and a clamping seat, the two sides of the fin body are connected with the manifold and the clamping seat respectively, the manifold, the fin body and the clamping seat are integrally formed, four fin bodies are uniformly arranged around the manifold, and the fin body is arranged at an angle of forty-five degrees with a vertical plane.

[0013] Preferably, the size of the engaging seat is consistent with the size of the engaging groove, the thickness of the fin body matches the size of the opening on the engaging groove, the heat exchange fin is engaged and installed in the engaging groove during actual installation, and at this time, the inner and outer sides of the engaging seat are stably attached to the outer side wall of the heat exchange pipe and the inner side wall of the engaging seat, respectively, the materials of the fin body, the engaging seat and the positioning support are the same as the material of the heat exchange pipe, and the collecting pipe is cast from a heat insulation material.

[0014] Preferably, a primary flow guide hole is formed on the fin body, the upper side of the collecting pipe is concave, the lowest point of the concave part of the collecting pipe is provided with a secondary flow guide hole, the primary flow guide hole and the secondary flow guide hole are arranged on the same horizontal plane, the two ends of the collecting pipe are closed, the rear end of the collecting pipe is provided with a flow channel pipe connecting port, the flow channel pipe connecting port is connected with the flow channel pipe in the inner cavity of the outer shell, the flow channel pipe is vertically downward, and the flow channel pipe is connected with the flow channel pipe connecting ports on the collecting pipes.

[0015] Preferably, the lower side of the collecting pipe is provided with a primary wind receiving part and a secondary wind receiving part, the primary wind receiving part is inclined to the left, and the secondary wind receiving part is inclined to the right, the primary wind receiving part and the secondary wind receiving part are both provided with a row of wind receiving parts at equal intervals, and the primary wind receiving part and the secondary wind receiving part are arranged in a staggered manner.

[0016] Preferably, the primary wind receiving part and the secondary wind receiving part are both composed of a connecting rod and a wind receiving plate, the connecting rod is integrally formed with the collecting pipe, the wind receiving plate is integrally formed with the end of the connecting rod, and the connecting rod is cast from a ductile plastic.

[0017] Preferably, the outer side wall of the uppermost positioning support in the same group of positioning supports on the heat exchange pipe is integrally formed with a connecting seat, the upper end surface of the connecting seat is integrally formed with a primary liquid guide plate, the outer side surface of the lower two fin bodies on the heat exchange fin is integrally formed with a secondary liquid guide plate, and the upper end of the secondary liquid guide plate extends into the gap enclosed by the positioning support and the primary liquid guide plate during actual installation of the heat exchange fin.

[0018] Preferably, the inner side surface of the lower two fin bodies on the heat exchange fin is integrally formed with a tertiary liquid guide plate, the outer side surfaces of the tertiary liquid guide plate and the secondary liquid guide plate are on the same circumferential surface, and the outer side surfaces of the tertiary liquid guide plate and the secondary liquid guide plate are flush with the side wall of the primary flow guide hole.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. The application is a clean room dehumidification air conditioning device, which is composed of an air filter, an evaporator, a condenser, a fan, a compressor and a refrigerant pipeline. The evaporator is composed of a shell, a heat exchange tube and a heat exchange fin. A positioning support is arranged on the sidewall of the straight tube part of the heat exchange tube. The heat exchange fin is composed of a manifold, a fin body and a clamping seat. The clamping seat is connected with the positioning support to form a clamping groove. The heat exchange fin is installed to position and connect the adjacent heat exchange tubes. The heat exchange tube and the heat exchange fin are connected conveniently. The clamping seat increases the contact area with the heat exchange tube, and the heat exchange efficiency of the fin body and the heat exchange tube is improved. The overall heat exchange effect of the evaporator is improved, and the operation effect of the clean room dehumidification air conditioning device is improved.

[0021] 2. The water droplets condensed on the fin body are collected by the manifold, so that the water droplets are not attached for a long time, the heat exchange effect of the fin body is not affected by the residual water droplets, and the operation effect of the clean room dehumidification air conditioning device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The application is an evaporator structure diagram.

[0023] Figure 2 The application is a heat exchange fin and heat exchange tube position distribution diagram.

[0024] Figure 3 The application is a heat exchange fin and heat exchange tube position distribution diagram. Figure 2 The application is a structure enlargement diagram of A.

[0025] Figure 4 The application is a heat exchange tube structure diagram.

[0026] Figure 5 The application is a heat exchange fin and heat exchange tube position distribution diagram. Figure 4 The application is a structure enlargement diagram of B.

[0027] Figure 6 The application is a structure enlargement diagram of C. Figure 5 The application is a structure enlargement diagram of C.

[0028] Figure 7 The application is a heat exchange fin and heat exchange tube position distribution diagram.

[0029] Figure 8 The application is a heat exchange fin and heat exchange tube position distribution diagram. Figure 7 The application is a structure enlargement diagram of D.

[0030] Figure 9 The application is a structure enlargement diagram of E. Figure 7 The application is a structure enlargement diagram of E.

[0031] Figure 10 The application is a heat exchange fin and heat exchange tube position distribution diagram.Figure 7 Structure enlarged schematic view at F;

[0032] Figure 11 Structure enlarged schematic view at F;

[0033] Figure 12 Structure enlarged schematic view at F; Figure 11 Structure enlarged schematic view at G;

[0034] Figure 13 Structure enlarged schematic view at G; Figure 12 Structure enlarged schematic view at H;

[0035] Figure 14 Structure enlarged schematic view at H; Figure 12 Structure enlarged schematic view at J.

[0036] In the figure: outer shell 1, heat exchange pipe 2, heat exchange fin 3, air inlet 4, air outlet 5, first-stage refrigerant pipe 7, second-stage refrigerant pipe 8, positioning support 9, clamping groove 10, flow collecting pipe 11, fin body 12, clamping seat 13, first-stage air receiving part 14, second-stage air receiving part 15, connecting rod 16, air receiving plate 17, first-stage flow guide hole 18, second-stage flow guide hole 19, flow channel pipe connecting port 20, flow channel pipe 21, inlet 22, first-stage pipe connecting port 23, outlet 24, connecting seat 25, first-stage liquid guide plate 26, second-stage liquid guide plate 27, third-stage liquid guide plate 28. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0038] Please refer to Figures 1-14 The present application provides the following three preferred schemes:

[0039] Embodiment one: a clean room dehumidification air conditioning equipment, comprising air filter, evaporator, condenser, fan, compressor and refrigerant pipeline, the evaporator comprises an outer shell 1, heat exchange pipe 2 and heat exchange fin 3, the outer shell 1 is rectangular box structure, the front side end of the outer shell 1 is provided with air inlet 4, the air inlet 4 is connected with air filter through primary air duct, the rear end of the outer shell 1 is provided with exhaust port 5, the exhaust port 5 is connected with condenser through secondary air duct, the outer shell 1 is fixedly installed with primary refrigerant pipeline 7 and secondary refrigerant pipeline 8, the outer side end of the primary refrigerant pipeline 7 is connected with the outlet end of the compressor, the outer side end of the secondary refrigerant pipeline 8 is connected with the inlet end of the condenser, the bottom surface of the outer shell 1 is provided with drain outlet 6, the drain outlet 6 is connected with drain pipe, the heat exchange pipe 2 is arranged in the form of continuous U, and the heat exchange pipe 2 is arranged in the inner cavity of the outer shell 1, the inlet 22 of the heat exchange pipe 2 is connected with the primary pipeline connecting port 23 of the primary refrigerant pipeline 7, the outlet 24 of the heat exchange pipe 2 is connected with the secondary pipeline connecting port of the secondary refrigerant pipeline 8, the heat exchange fin 3 is connected with the heat exchange pipe 2, and the heat exchange pipe 2 is arranged at equal intervals in the outer shell 1, the heat exchange fin 3 is used for forming positioning connection for the adjacent heat exchange pipe 2.

[0040] The adjacent straight pipes on the adjacent heat exchange pipes 2 are arranged in a matrix, the heat exchange fin 3 is used for forming positioning connection for the four heat exchange pipe straight pipes forming the smallest matrix, and a plurality of groups of rectangular channel structures are formed between the heat exchange fins 3, and the setting direction of the rectangular channels is parallel to the gas flow direction in the outer shell 1.

[0041] The straight pipe portion of the heat exchange pipe 2 is integrally formed with a positioning support 9 on the side wall, the positioning support 9 is arranged in the form of T, four positioning supports 9 are uniformly arranged around the side wall of the heat exchange pipe 2, the positioning supports 9 are arranged in the form of cross, and a clamping groove 10 is formed between the adjacent positioning supports 9, and the clamping groove 10 is arranged in the form of opening.

[0042] The heat exchange fin 3 comprises a manifold 11, a fin body 12 and a clamping seat 13, the two sides of the fin body 12 are connected with the manifold 11 and the clamping seat 13 respectively, and the manifold 11, the fin body 12 and the clamping seat 13 are integrally formed, four fin bodies 12 are uniformly arranged around the manifold 11, and the fin body 12 is arranged at an angle of forty-five degrees with the vertical plane.

[0043] The size of the engaging seat 13 matches the size of the engaging groove 10, the thickness of the fin body 12 matches the size of the opening on the engaging groove 10, and the heat exchange fin 3 is installed in the engaging groove 10, and at this time, the inner and outer sides of the engaging seat 13 are stably attached to the outer side wall of the heat exchange pipe 2 and the inner side wall of the engaging seat 13, respectively. The materials of the fin body 12, the engaging seat 13, and the positioning support 9 are the same as that of the heat exchange pipe 2. The collecting pipe 11 is made of a heat-insulating material. The clean room dehumidification air conditioning equipment is composed of an air filter, an evaporator, a condenser, a fan, a compressor, and a refrigerant pipeline. The evaporator is composed of the outer shell 1, the heat exchange pipe 2, and the heat exchange fin 3. The positioning support 9 is arranged on the straight pipe portion of the heat exchange pipe 2. The heat exchange fin 3 is composed of the collecting pipe 11, the fin body 12, and the engaging seat 13. The engaging groove 10 formed by the engaging seat 13 and the positioning support 9 is connected in cooperation. The heat exchange fin 3 is installed to simultaneously position and connect the adjacent heat exchange pipe 2. The convenience of assembling and connecting the heat exchange pipe 2 and the heat exchange fin 3 is effectively improved. The engaging seat 13 can effectively increase the contact area with the heat exchange pipe 2, thereby effectively improving the heat exchange efficiency of the fin body 12 and the heat exchange pipe 2, effectively improving the overall heat exchange effect of the evaporator, and achieving the purpose of improving the operation effect of the clean room dehumidification air conditioning equipment.

[0044] A first guide hole 18 is arranged on the fin body 12. The upper side of the collecting pipe 11 is arranged in a concave manner. The lowest point of the concave part of the collecting pipe 11 is provided with a second guide hole 19. The first guide hole 18 and the second guide hole 19 are arranged on the same horizontal plane. The two ends of the collecting pipe 11 are sealed. The rear end of the collecting pipe 11 is provided with a flow channel pipe connecting port 20. The flow channel pipe connecting port 20 is connected with a flow channel pipe 21 in the inner cavity of the outer shell 1. The flow channel pipe 21 is arranged vertically downward. The flow channel pipe 21 is connected with the flow channel pipe connecting port 20 on a row of collecting pipes 11. The water droplets condensed on the fin body 12 are collected in time by the collecting pipe 11, thereby effectively avoiding the long-term adhesion of the water droplets condensed on the fin body 12, effectively avoiding the influence of the residual water droplets on the heat exchange effect of the fin body 12, and achieving the purpose of further improving the operation effect of the clean room dehumidification air conditioning equipment.

[0045] Example 2: Based on Example 1, a primary air receiver 14 and a secondary air receiver 15 are provided on the lower side of the manifold 11. The primary air receiver 14 is inclined to the left, and the secondary air receiver 15 is inclined to the right. The primary air receiver 14 and the secondary air receiver 15 are arranged in a row with equal spacing, and the primary air receiver 14 and the secondary air receiver 15 are arranged in an alternating manner. Through the arrangement of the primary air receiver 14 and the secondary air receiver 15, the airflow flowing at the edge of the fin body 12 is disturbed, thereby changing the airflow direction and allowing the airflow to better contact and exchange heat with the fin body 12, thereby improving the heat exchange efficiency.

[0046] Both the primary air receiver 14 and the secondary air receiver 15 are composed of a connecting rod 16 and an air receiving plate 17. The connecting rod 16 is integrally formed with the manifold 11, and the air receiving plate 17 is integrally formed with the end of the connecting rod 16. The connecting rod 16 is made of tough plastic. The airflow exerts a force on the primary air receiver 14 and the secondary air receiver 15, thereby creating a vibration effect through the tough plastic connecting rod 16, which causes the manifold 11 to vibrate slightly, allowing the water droplets on the fin body 12 to fall more quickly.

[0047] Example 3: Based on Example 2, a connecting seat 25 is integrally formed on the outer wall of the uppermost positioning support 9 in the same group on the heat exchange tube 2. A primary liquid guide plate 26 is integrally formed on the upper end face of the connecting seat 25. A secondary liquid guide plate 27 is integrally formed on the outer side of the two lower fin bodies 12 on the heat exchange fin 3. When the heat exchange fin 3 is actually installed, the upper end of the secondary liquid guide plate 27 extends into the gap between the positioning support 9 and the primary liquid guide plate 26.

[0048] The inner sides of the two lower fins 12 on the heat exchange fin 3 are integrally formed with three-stage liquid guiding plates 28. The outer sides of the three-stage liquid guiding plates 28 and the two-stage liquid guiding plates 27 are on the same circumferential surface, and the outer sides of the three-stage liquid guiding plates 28 and the two-stage liquid guiding plates 27 are flush with the sidewall of the first-stage guide hole 18. Through the arrangement of the first-stage liquid guiding plate 26, the two-stage liquid guiding plate 27 and the three-stage liquid guiding plate 28, the water droplets falling on the fin 12 are guided, thereby preventing the water droplets from flowing into the gaps between the structures and failing to quickly enter the collection pipe 11, thus effectively improving the water droplet recovery efficiency of the collection pipe 11 to a certain extent.

[0049] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A cleanroom dehumidification and air conditioning device, comprising an air filter, an evaporator, a condenser, a fan, a compressor, and refrigerant piping, characterized in that: The evaporator includes: The outer casing (1) is a rectangular box structure. An air inlet (4) is provided on the front end of the outer casing (1). The air inlet (4) is connected to the air filter through a primary air duct. An exhaust port (5) is provided on the rear end of the outer casing (1). The exhaust port (5) is connected to the condenser through a secondary air duct. A primary refrigerant pipeline (7) and a secondary refrigerant pipeline (8) are fixedly installed on the outer casing (1). The outer end of the primary refrigerant pipeline (7) is connected to the outlet end of the compressor. The outer end of the secondary refrigerant pipeline (8) is connected to the inlet end of the condenser. A drain port (6) is provided on the bottom surface of the outer casing (1). A drain pipe is connected to the drain port (6). The heat exchange tube (2) is arranged in a continuous U-shape and is located in the inner cavity of the outer shell (1). The inlet (22) of the heat exchange tube (2) is connected to the primary pipeline connection port (23) on the primary refrigerant pipeline (7), and the outlet (24) of the heat exchange tube (2) is connected to the secondary pipeline connection port on the secondary refrigerant pipeline (8). Heat exchange fins (3) are connected to heat exchange tubes (2). Multiple heat exchange tubes (2) are arranged at equal intervals in the outer shell (1). The heat exchange fins (3) are used to form a positioning connection between adjacent heat exchange tubes (2). The straight section of the heat exchange tube (2) has an integrally formed positioning support (9) on its side wall. The positioning support (9) has a T-shaped cross section and four positioning supports (9) are evenly arranged around the side wall of the heat exchange tube (2). The positioning supports (9) are arranged in a cross shape and adjacent positioning supports (9) form a snap-fit ​​groove (10). The snap-fit ​​groove (10) is open. The heat exchange fins (3) include a manifold (11), fin bodies (12) and a locking seat (13). The two sides of the fin body (12) are connected to the manifold (11) and the locking seat (13) respectively. The manifold (11), fin body (12) and locking seat (13) are integrally formed. Four fin bodies (12) are evenly arranged around the manifold (11). The fin body (12) is set at a 45-degree angle with the vertical plane. The fin body (12) is provided with a primary guide hole (18), the upper part of the collector tube (11) is recessed, and the lowest point of the recessed part of the collector tube (11) is provided with a secondary guide hole (19). The primary guide hole (18) and the secondary guide hole (19) are located on the same horizontal plane. The two ends of the collector tube (11) are sealed. The rear end of the collector tube (11) is provided with a flow channel pipe connection port (20). The flow channel pipe connection port (20) is connected to the flow channel pipe (21) in the inner cavity of the outer shell (1). The flow channel pipe (21) is vertically downward and the flow channel pipe (21) is connected to the flow channel pipe connection port (20) on a row of collector tubes (11).

2. The cleanroom dehumidification air conditioning equipment according to claim 1, characterized in that: The adjacent straight tubes on the adjacent heat exchange tubes (2) are arranged in a matrix. The heat exchange fins (3) are used to form a positioning connection between the four heat exchange tubes that form the smallest matrix. The heat exchange fins (3) form multiple sets of rectangular channel structures, and the orientation of the rectangular channels is parallel to the gas flow direction in the outer shell (1).

3. The cleanroom dehumidification air conditioning equipment according to claim 1, characterized in that: The size of the locking seat (13) matches the size of the locking groove (10), and the thickness of the fin body (12) matches the size of the opening on the locking groove (10). When the heat exchange fins (3) are actually installed, the locking seat (13) is locked in the locking groove (10). At this time, the inner and outer sides of the locking seat (13) are stably attached to the outer wall of the heat exchange tube (2) and the inner wall of the locking seat (13), respectively. The materials of the fin body (12), the locking seat (13), and the positioning support (9) are all the same as the material of the heat exchange tube (2). The manifold (11) is cast from heat insulation material.

4. The cleanroom dehumidification air conditioning equipment according to claim 1, characterized in that: The lower side of the manifold (11) is provided with a primary air receiver (14) and a secondary air receiver (15). The primary air receiver (14) is inclined to the left and the secondary air receiver (15) is inclined to the right. The primary air receiver (14) and the secondary air receiver (15) are arranged in a row at equal intervals and are staggered.

5. A cleanroom dehumidification air conditioning device according to claim 4, characterized in that: The primary wind receiver (14) and the secondary wind receiver (15) are both composed of a connecting rod (16) and a wind receiving plate (17). The connecting rod (16) is integrally formed with the manifold (11), and the wind receiving plate (17) is integrally formed with the end of the connecting rod (16). The connecting rod (16) is cast from tough plastic.

6. A cleanroom dehumidification air conditioning device according to claim 1, characterized in that: A connecting seat (25) is integrally formed on the outer wall of the uppermost positioning support (9) in the same group on the heat exchange tube (2). A primary liquid guide plate (26) is integrally formed on the upper end face of the connecting seat (25). A secondary liquid guide plate (27) is integrally formed on the outer side of the two fin bodies (12) on the lower side of the heat exchange fin (3). When the heat exchange fin (3) is actually installed, the upper end of the secondary liquid guide plate (27) extends into the gap between the positioning support (9) and the primary liquid guide plate (26).

7. A cleanroom dehumidification air conditioning device according to claim 6, characterized in that: The inner side of the two fin bodies (12) on the lower side of the heat exchange fin (3) is integrally formed with a three-stage liquid guide plate (28). The outer sides of the three-stage liquid guide plate (28) and the two-stage liquid guide plate (27) are on the same circumferential surface, and the outer sides of the three-stage liquid guide plate (28) and the two-stage liquid guide plate (27) are flush with the side wall of the first-stage guide hole (18).

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