Refrigerating unit with high heat exchange efficiency

Abstract

The invention relates to the technical field of refrigerating units, in particular to a refrigerating unit with high heat exchange efficiency, which comprises a top cover and a main body frame, a condenser is fixedly connected to the rear side of the lower part of the inner wall of the main body frame, a plurality of layers of partition plates are arranged on the front side of the condenser, and an air inlet assembly is mounted in the front side of the main body frame; a fan assembly is arranged on the front side of the partition plate, and a circulating assembly is installed on the inner side of a sleeve support in the fan assembly. Through cooperation of the air inlet grille, the blades, the heat exchange pipe, the first water inlet pipe and the water drainage pipe, the length and time needed by airflow to pass through the grille are increased, the inclined air inlet grille enables the airflow which flows backwards uniformly originally to be concentrated inwards, the airflow is concentrated on the surfaces of the blades, and the heat exchange effect is improved. The pits on the surfaces of the blades further increase the contact area of the air flow and the blades, so that the problems that the time needed when the air flow passes through the heat exchange tube is short, the contact area is limited, and the heat exchange efficiency is low are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration units, and in particular to a refrigeration unit with high heat exchange efficiency. Background Art

[0002] In the refrigeration industry, there are two types of refrigeration units: air-cooled refrigeration units and water-cooled refrigeration units. This case involves a water-cooled refrigeration unit, which cools the refrigerant through a circulation pipe and a condenser to reduce the temperature of the pipes at the heat exchange pipe, and then controls the fan structure to start, so that the fan structure controls the airflow to pass through the heat exchange pipe to exchange heat with it, and finally discharges the airflow at a lower temperature.

[0003] However, in the prior art, most of them use front and rear vertical grilles to achieve front-end air intake of the equipment. The time required for the airflow to pass through the heat exchange tubes of the front and rear vertical grilles is short, and the contact area is also limited, resulting in low heat exchange efficiency.

[0004] Furthermore, the fan structure in the refrigeration unit usually only appears as a component for driving the airflow, and cannot provide any assistance for the heat exchange of the airflow. The motor in the fan structure will also generate a certain amount of heat when in use, thereby affecting the heat exchange efficiency of the airflow. At the same time, if the heat of the fan structure is exported and a heat exchange structure is added, the changes to the existing fan will be too large, which is not conducive to equipment modification and results in poor applicability of the design. Summary of the invention

[0005] The purpose of the present invention is to solve the existing problems and to propose a refrigeration unit with high heat exchange efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions: A refrigeration unit with high heat exchange efficiency is designed, including a top cover and a main frame, a condenser is fixedly connected to the rear side of the lower inner wall of the main frame, a multi-layer partition plate is arranged on the front side of the condenser, and the partition plate is fixedly connected to the inner wall of the main frame, an air intake assembly is installed inside the front side of the main frame, a fan assembly is arranged on the front side of the partition plate, and a circulation assembly is installed on the inner side of the sleeve bracket in the fan assembly.

[0007] Preferably, the air intake assembly includes an air intake grille, a heat exchange pipe, a drain pipe, a connecting elbow, a perforated plate and a water inlet pipe; The multiple orifice plates are respectively fixedly connected to the left and right sides of the front inner wall of the main frame, and the inner wall of the orifice plate is equidistantly interspersed with a plurality of heat exchange tubes, and the outer wall of the heat exchange tube is equidistantly sleeved with a plurality of air intake grilles, and the ends of the two sides of the heat exchange tube are connected by connecting elbows, the right end of the upper heat exchange tube is connected to the reflux port of the condenser through a drain pipe 1, and the right end of the lower heat exchange tube is connected to the water outlet of the condenser through a water inlet pipe 1.

[0008] Preferably, a top cover is fixedly connected to the upper end of the main frame, and an exhaust port is processed at a rear position of the upper end of the top cover.

[0009] Preferably, the fan assembly includes a fan frame, a power motor, a fan bracket, a sleeve bracket, blades, a pit, a turntable and a main shaft; The fan frame is located at the rear side of the air intake grille, and the outer wall of the fan frame is fixedly connected to the main frame, the rear end of the fan frame is fixedly connected to the power motor through the fan bracket, the end of the output shaft of the power motor is fixedly connected to the main shaft, the front end of the main shaft is fixedly connected to a turntable, the outer wall of the turntable is fixedly connected with a plurality of blades at equal angles, the front side surface of the blade is processed with pits, and the center of the inner wall at the left and right ends of the fan bracket is fixedly connected with a sleeve bracket.

[0010] Preferably, the angle between adjacent blades is 72°, and the lower end of the sleeve bracket is fixedly connected to the main frame.

[0011] Preferably, the circulation assembly includes a second drainage pipe, a connecting pipe, a cylinder, a sleeve, a rotating bracket, a second water inlet pipe, a rubber pad, a water permeable hole and a sealed bearing; The plurality of cylinders are respectively distributed on both sides of the outer wall of the main shaft, the inner ends of the cylinders are pressed against the main shaft through rubber pads, the front side of the outer wall of the cylinders is connected with a rotating bracket, the front side of the end of the rotating bracket is connected with the blades through a connecting pipe, the rear side of the outer wall of the cylinders is processed with water holes at equal angles, a sleeve is arranged on the outside of the water holes, both sides of the inner wall of the sleeves are rotatably connected to the cylinders through sealing bearings, the upper inner wall of the sleeves is connected with the reflux port of the condenser through a second drain pipe, and the lower inner wall of the sleeves is connected with the water outlet of the condenser through a second water inlet pipe.

[0012] Preferably, the inner wall of the multi-layer partition plate is processed with a pipeline connecting structure, and the drain pipe 2 and the drain pipe 1 can be combined into one pipeline connected to the reflux port of the condenser through the pipeline connecting structure, and the water inlet pipe 2 and the water inlet pipe 1 can be combined into one pipeline connected to the water outlet of the condenser through the pipeline connecting structure.

[0013] Preferably, a flange is fixedly connected to the upper part of the outer wall of the exhaust port, and the exhaust port is connected to an external pipeline through the flange.

[0014] The present invention provides a refrigeration unit with high heat exchange efficiency, which has the following beneficial effects: Through the coordination among the air intake grille, blades, heat exchange tubes, water inlet pipes and drainage pipes, an inclined air intake grille with an inclination of 8.5° in the front-rear direction is designed, so that after the airflow enters the air intake grille, its flow direction is bent by 8.5°, thereby increasing the length and time required for the airflow to pass through the grille, and having a better contact effect. At the same time, the inclined air intake grille also concentrates the airflow that originally flows evenly backward more inward, so that the airflow is concentrated on the surface of the blades. In this process, the pits on the surface of the blades further increase the contact area between the airflow and the blades. In this way, the problem of low heat exchange efficiency caused by the short time required for the airflow to pass through the heat exchange tube and the limited contact area is effectively avoided. Through the coordination among the main shaft, the cylinder, the second water inlet pipe, the second drainage pipe, the blades and the sleeve, the sleeve is always sleeved on the outside of the water permeable hole during the rotation of the main shaft and the cylinder, so that the connection principle of the cylinder, the rotating bracket, the blades and the sleeve is utilized to realize that the refrigerant continuously flows inside the blades under the action of the second water inlet pipe and the second drainage pipe to cool the surface of the blades. In fact, the principle of the blade driving the airflow is realized by utilizing the airflow velocity difference on the two sides of the blade. Therefore, when the airflow passes through the blade, it will contact the blade surface to realize heat exchange. In this way, it effectively avoids the problem that the fan structure cannot provide assistance for the airflow heat exchange, and the motor will also generate a certain amount of heat when in use, thereby affecting the airflow heat exchange efficiency. Moreover, during the design process, the structure of the cylinder is designed as a split structure, and the rubber pads on the inner walls of the cylinder on both sides are used to realize the cylinder sleeve and sealed installation on the outer wall of the main shaft. Secondly, only the grooves and the internal hollow are modified at the blades, and the modification difficulty is relatively small. The remaining structures are only connected to the blades and the outer walls of the cylinder. Therefore, the overall changes to the fan structure in the prior art are relatively small, which is more conducive to the modification and processing of the refrigeration unit in the prior art, and greatly improves the applicability of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front appearance structure of the present invention; Figure 2 It is a schematic diagram of the rear appearance structure of the present invention; Figure 3 For the present invention Figure 1 A schematic diagram of the structure in a state where the top cover is removed; Figure 4 For the present invention Figure 3 A schematic partial cross-sectional view of the front side; Figure 5 For the present invention Figure 3 Schematic diagram of the state where the air intake grille is removed; Figure 6 For the present invention Figure 5The schematic diagram of the structure in which the blades are removed; Figure 7 For the present invention Figure 5 Schematic diagram of the right view structure in ; Figure 8 For the present invention Figure 4 Schematic diagram of the structure at A in FIG. Fig. 9 For the present invention Figure 7 Schematic diagram of the structure at B in FIG. Fig.10 For the present invention Figure 6 Schematic diagram of the structure at position I in FIG.

[0016] In the figure: 1. top cover, 2. main frame, 3. air intake assembly, 301. air intake grille, 302. heat exchange tube, 303. drain pipe 1, 304. connecting elbow, 305. orifice plate, 306. water inlet pipe 1, 4. fan assembly, 401. fan frame, 402. power motor, 403. fan bracket, 404. sleeve bracket, 405. blade, 406. pit, 407. turntable, 408. main shaft, 5. circulation assembly, 501. drain pipe 2, 502. connecting pipe, 503. cylinder, 504. sleeve, 505. rotating bracket, 506. water inlet pipe 2, 507. rubber pad, 508. water permeable hole, 509. sealing bearing, 6. partition plate, 7. flange, 8. condenser, 9. exhaust port. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings: See attached Figure 1-10In the present embodiment, a refrigeration unit with high heat exchange efficiency includes a top cover 1 and a main frame 2. A condenser 8 is fixedly connected to the rear side of the lower inner wall of the main frame 2. The model of the condenser 8 can be determined according to the specific usage. The condenser 8 is used to re-cool the refrigerant with a higher temperature after reflux into a refrigerant with a lower temperature. A multi-layer partition plate 6 is arranged on the front side of the condenser 8. The partition plate 6 is fixedly connected to the inner wall of the main frame 2. An air intake component 3 is installed inside the front side of the main frame 2. A fan component 4 is arranged on the front side of the partition plate 6. A circulation component 5 is installed on the inner side of the sleeve bracket 404 in the fan component 4. The upper end of the main frame 2 is fixedly connected to It is connected to a top cover 1, and an exhaust port 9 is processed at the rear position of the upper end of the top cover 1. The inner wall of the multi-layer partition plate 6 is processed with a pipeline connecting structure. The pipeline connecting structure is a three-way structure with a one-way valve, which can realize the synchronous connection of the pipelines on both sides with the condenser 8 without interfering with each other. The drain pipe 2 501 and the drain pipe 1 303 can be combined into one pipeline connected to the reflux port of the condenser 8 through the pipeline connecting structure. The water inlet pipe 2 506 and the water inlet pipe 1 306 can be combined into one pipeline connected to the water outlet of the condenser 8 through the pipeline connecting structure. A flange 7 is fixedly connected to the upper outer wall of the exhaust port 9, and the exhaust port 9 is connected to the external pipeline through the flange 7.

[0018] See attached Figure 1-10 : In this embodiment, the air intake assembly 3 includes an air intake grille 301, a heat exchange tube 302, a drain pipe 303, a connecting elbow 304, a perforated plate 305 and a water inlet pipe 306; A plurality of orifice plates 305 are fixedly connected to the left and right sides of the front inner wall of the main frame 2, and a plurality of heat exchange tubes 302 are equidistantly inserted into the inner wall of the orifice plate 305, and a plurality of air intake grilles 301 are equidistantly sleeved on the outer wall of the heat exchange tube 302. The present case designs an inclined air intake grille 301 inclined 8.5° to the front-to-back direction, so that after the airflow enters the air intake grille 301, its flow direction presents an 8.5° bend, and the heat exchange tube 302 contacts the flowing airflow to achieve the purpose of heat exchange, and the ends of both sides of the heat exchange tube 302 are connected by connecting elbows 304, the right end of the upper heat exchange tube 302 is connected to the reflux port of the condenser 8 through a drain pipe 303, and the right end of the lower heat exchange tube 302 is connected to the water outlet of the condenser 8 through a water inlet pipe 306.

[0019] Through the coordination among the air intake grille 301, the blades 405, the heat exchange tube 302, the water inlet pipe 306 and the drain pipe 303, an inclined air intake grille 301 inclined at 8.5° to the front-to-back direction is designed, so that after the airflow enters the air intake grille 301, its flow direction is bent at 8.5°, thereby increasing the length and time required for the airflow to pass through the grille, and having a better contact effect. At the same time, the inclined air intake grille 301 also concentrates the airflow that originally flows evenly backward more inward, so that the airflow is concentrated on the surface of the blade 405. In this process, the pits on the surface of the blade 405 further increase the contact area between the airflow and the blade 405. In this way, the problem of low heat exchange efficiency caused by the short time required for the airflow to pass through the heat exchange tube 302 and the limited contact area is effectively avoided.

[0020] See attached Figure 1-10 : In this embodiment, the fan assembly 4 includes a fan frame 401, a power motor 402, a fan bracket 403, a sleeve bracket 404, blades 405, a pit 406, a rotating disk 407 and a main shaft 408; The fan frame 401 is located on the rear side of the air intake grille 301, and the outer wall of the fan frame 401 is fixedly connected to the main frame 2. The rear end of the fan frame 401 is fixedly connected to the power motor 402 through the fan bracket 403. The model of the power motor 402 can be determined according to the specific usage. The end of the output shaft of the power motor 402 is fixedly connected to the main shaft 408, and the front end of the main shaft 408 is fixedly connected to the turntable 407. The outer wall of the turntable 407 is fixedly connected with multiple blades 405 at equal angles. The front side surface of the blade 405 is processed with a pit 406, and the inner wall of the blade 405 is hollow. The center of the inner wall at the left and right ends of the fan bracket 403 is fixedly connected with a sleeve bracket 404. The angle between adjacent blades 405 is 72°, and the lower end of the sleeve bracket 404 is fixedly connected to the main frame 2.

[0021] See attached Figure 1-10 : In this embodiment, the circulation component 5 includes a second drain pipe 501, a connecting pipe 502, a cylinder 503, a sleeve 504, a rotating bracket 505, a second water inlet pipe 506, a rubber pad 507, a water permeable hole 508 and a sealing bearing 509; A plurality of cylinders 503 are respectively distributed on both sides of the outer wall of the main shaft 408, and the inner end of the cylinder 503 is pressed against the main shaft 408 through a rubber pad 507. The front side of the outer wall of the cylinder 503 is connected with a rotating bracket 505, and the front side of the end of the rotating bracket 505 is connected with the blade 405 through a connecting pipe 502. The rear side of the outer wall of the cylinder 503 is processed with water holes 508 at equal angles. The water holes 508 are used to ensure that the cylinder 503 can still be connected with the sleeve 504 when it rotates. A sleeve 504 is arranged on the outside of the water hole 508. Both sides of the inner wall of the sleeve 504 are rotatably connected to the cylinder 503 through sealing bearings 509. The sealing bearings 509 are used to ensure the sealing inside the sleeve 504. The upper inner wall of the sleeve 504 is connected to the reflux port of the condenser 8 through the second drain pipe 501, and the lower inner wall of the sleeve 504 is connected to the water outlet of the condenser 8 through the second water inlet pipe 506.

[0022] Through the coordination among the main shaft 408, the cylinder 503, the second water inlet pipe 506, the second drainage pipe 501, the blade 405 and the sleeve 504, during the rotation of the main shaft 408 and the cylinder 503, the sleeve 504 is always sleeved on the outer side of the water permeable hole 508, so that by utilizing the communication principle of the cylinder 503, the rotating bracket 505, the blade 405 and the sleeve 504, under the action of the second water inlet pipe 506 and the second drainage pipe 501, the refrigerant is continuously flowed inside the blade 405 to cool the surface of the blade 405. In fact, the principle of the blade driving the airflow flow is realized by utilizing the airflow velocity difference on the two sides of the blade 405. Therefore, when the airflow passes through the blade 405, it will contact the surface of the blade 405 to achieve heat exchange. In this way, it effectively avoids the problem that the fan structure cannot provide assistance for the airflow heat exchange, and the motor will also generate a certain amount of heat when in use, thereby affecting the airflow heat exchange efficiency. Moreover, during the design process, the structure of the cylinder 503 is designed to be a split structure, and the rubber pads 507 on the inner walls of the cylinder 503 on both sides are used to realize that the cylinder 503 is sleeved and sealed on the outer wall of the main shaft 408. Secondly, only the groove 406 and the internal hollow are modified at the blade 405, and the modification difficulty is relatively small. The remaining structures are only connected to the blade 405 and the outer wall of the cylinder 503. Therefore, the overall change to the fan structure in the prior art is relatively small, which is more conducive to the modification and processing of the refrigeration unit in the prior art, and greatly improves the applicability of the overall equipment.

[0023] Working principle: When the refrigeration unit with high heat exchange efficiency is needed, first, the user can connect the device of this case with the external cold air duct through the flange 7. Before using it, the condenser 8 and the pump body matched therewith need to be started first, so that the condenser 8 injects the refrigerant with a lower temperature into the interior of the heat exchange tube 302 through the water inlet pipe 1 306, and finally flows back to the interior of the condenser 8 through the drain pipe 1 303. At the same time, the condenser 8 injects the refrigerant with a lower temperature into the interior of the cylinder 503 and the blade 405 through the water inlet pipe 2 506, and finally flows back to the interior of the condenser 8 through the drain pipe 2 501. In this way, the pre-cooling operation of the blade 405 and the heat exchange tube 302 is completed. Then, when cold air needs to be delivered, the power motor 402 can be controlled so that the power motor 402 can drive the turntable 407 and the blades 405 to rotate, so that the high-speed rotation of the blades 405 continuously delivers the airflow backward, and the airflow is blocked by the partition plate 6 so that the airflow is discharged upward from the exhaust port 9. At the same time, the airflow continuously enters the interior of the main frame 2 through the air intake grille 301 and is finally discharged from the exhaust port 9. During the flow of the airflow, it contacts the heat exchange tube 302 and the blades 405 for heat exchange and cooling. Compared with the prior art, most of them use front and rear vertical grilles to realize the front air intake of the equipment. However, the time required for the front and rear vertical grilles for the airflow to pass through the heat exchange tube 302 is shorter, and the contact area is also limited. , resulting in a problem of low heat exchange efficiency. Therefore, the present case designs an inclined air intake grille 301 that is inclined 8.5° with respect to the front-rear direction, so that after the airflow enters the air intake grille 301, its flow direction is bent at 8.5°, thereby increasing the length and time required for the airflow to pass through the grille, and having a better contact effect. At the same time, the inclined air intake grille 301 also concentrates the airflow that originally flows uniformly backward more inward, so that the airflow is concentrated on the surface of the blade 405. In this process, the pits on the surface of the blade 405 further increase the contact area between the airflow and the blade 405. In this way, it effectively avoids the problem of low heat exchange efficiency caused by the short time required for the airflow to pass through the heat exchange tube and the limited contact area.

[0024] At the same time, compared with the prior art, the fan structure in the refrigeration unit usually only appears as a component for driving the airflow, and cannot provide assistance for the heat exchange of the airflow, and the motor in the fan structure will also generate a certain amount of heat when in use, thereby affecting the heat exchange efficiency of the airflow. Therefore, the present case designs a circulation component 5, so that during the rotation of the main shaft 408 and the cylinder 503, the sleeve 504 is always sleeved on the outside of the water permeable hole 508, so that the cylinder 503, the rotating bracket 505, the blade 405 and the sleeve 504 are connected. The principle of communication is used to realize Now, under the action of the water inlet pipe 506 and the drain pipe 501, the refrigerant continuously flows inside the blade 405 to cool the surface of the blade 405. In fact, the principle of the blade driving the airflow flow is to utilize the airflow velocity difference on the two sides of the blade 405. Therefore, when the airflow passes through the blade 405, it will contact the surface of the blade 405 to achieve heat exchange. In this way, it effectively avoids the problem that the fan structure cannot provide assistance for the airflow heat exchange, and the motor will also generate a certain amount of heat when in use, thereby affecting the airflow heat exchange efficiency.

[0025] At the same time, during the design process of this case, the structure of the cylinder 503 is designed to be a split structure, and the rubber pads 507 on the inner walls of the cylinder 503 on both sides are used to realize the sleeve and sealed installation of the cylinder 503 on the outer wall of the main shaft 408. Secondly, only the groove 406 and the internal hollow are modified at the blade 405, and the modification difficulty is relatively small. The remaining structures are only connected to the blade 405 and the outer wall of the cylinder 503. Therefore, the overall change to the fan structure in the prior art is relatively small, which is more conducive to the modification and processing of the refrigeration unit in the prior art, and greatly improves the applicability of the overall equipment.

[0026] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A refrigeration unit with high heat exchange efficiency, comprising a top cover (1) and a main frame (2), characterized in that: A condenser (8) is fixedly connected to the rear side below the inner wall of the main frame (2); a multi-layer partition plate (6) is arranged on the front side of the condenser (8); the partition plate (6) is fixedly connected to the inner wall of the main frame (2); an air intake assembly (3) is installed inside the front side of the main frame (2); a fan assembly (4) is arranged on the front side of the partition plate (6); and a circulation assembly (5) is installed on the inner side of a sleeve bracket (404) in the fan assembly (4).

2. A refrigeration unit with high heat exchange efficiency according to claim 1, characterized in that: The air intake assembly (3) comprises an air intake grille (301), a heat exchange tube (302), a drainage pipe (303), a connecting elbow (304), a perforated plate (305) and a water inlet pipe (306); The plurality of orifice plates (305) are respectively fixedly connected to the left and right sides of the front inner wall of the main frame (2); the inner wall of the orifice plate (305) is equidistantly interspersed with a plurality of heat exchange tubes (302); the outer wall of the heat exchange tube (302) is equidistantly sleeved with a plurality of air intake grilles (301); the ends of both sides of the heat exchange tube (302) are connected via a connecting elbow (304); the right end of the upper heat exchange tube (302) is connected to the return port of the condenser (8) via a drain pipe (303); and the right end of the lower heat exchange tube (302) is connected to the water outlet of the condenser (8) via a water inlet pipe (306).

3. A refrigeration unit with high heat exchange efficiency according to claim 1, characterized in that: The upper end of the main frame (2) is fixedly connected to a top cover (1), and an exhaust port (9) is processed at a rearward position of the upper end of the top cover (1).

4. A refrigeration unit with high heat exchange efficiency according to claim 1, characterized in that: The fan assembly (4) comprises a fan frame (401), a power motor (402), a fan bracket (403), a sleeve bracket (404), blades (405), a pit (406), a rotating disk (407) and a main shaft (408); The fan frame (401) is located at the rear side of the air intake grille (301), and the outer wall of the fan frame (401) is fixedly connected to the main frame (2). The rear end of the fan frame (401) is fixedly connected to the power motor (402) through a fan bracket (403). The end of the output shaft of the power motor (402) is fixedly connected to a main shaft (408), and the front end of the main shaft (408) is fixedly connected to a turntable (407). The outer wall of the turntable (407) is fixedly connected to a plurality of blades (405) at equal angles. The front side surfaces of the blades (405) are processed with pits (406). The center of the inner walls of the left and right ends of the fan bracket (403) is fixedly connected to a sleeve bracket (404).

5. A refrigeration unit with high heat exchange efficiency according to claim 4, characterized in that: The included angle between adjacent blades (405) is 72°, and the lower end of the sleeve bracket (404) is fixedly connected to the main frame (2).

6. A refrigeration unit with high heat exchange efficiency according to claim 1, characterized in that: The circulation assembly (5) comprises a second drainage pipe (501), a connecting pipe (502), a cylinder (503), a sleeve (504), a rotating bracket (505), a second water inlet pipe (506), a rubber pad (507), a water permeable hole (508) and a sealing bearing (509); The plurality of cylinders (503) are respectively distributed on both sides of the outer wall of the main shaft (408); the inner ends of the cylinders (503) are tightly abutted against the main shaft (408) via rubber pads (507); the front side of the outer wall of the cylinder (503) is connected to a rotating bracket (505); the front side of the end of the rotating bracket (505) is connected to the blade (405) via a connecting pipe (502); the rear side of the outer wall of the cylinder (503) is processed with water-permeable A hole (508) is provided on the outside of the water-permeable hole (508), and both sides of the inner wall of the sleeve (504) are rotatably connected to the cylinder (503) through sealing bearings (509). The upper inner wall of the sleeve (504) is connected to the return port of the condenser (8) through the second drain pipe (501), and the lower inner wall of the sleeve (504) is connected to the water outlet of the condenser (8) through the second water inlet pipe (506).

7. A refrigeration unit with high heat exchange efficiency according to claim 1, characterized in that: The inner wall of the multi-layer partition plate (6) is processed with a pipeline connection structure, and the drainage pipe 2 (501) and the drainage pipe 1 (303) can be combined into a pipeline connected to the return port of the condenser (8) through the pipeline connection structure, and the water inlet pipe 2 (506) and the water inlet pipe 1 (306) can be combined into a pipeline connected to the water outlet of the condenser (8) through the pipeline connection structure.

8. A refrigeration unit with high heat exchange efficiency according to claim 1, characterized in that: A flange (7) is fixedly connected to the upper portion of the outer wall of the exhaust port (9), and the exhaust port (9) is connected to an external pipeline via the flange (7).

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