Cooling water return device of central air conditioner

Abstract

The utility model provides a central air conditioner cooling water return device, which relates to the technical field of central air conditioners and comprises a cooling tower main body, a plurality of circulating connecting pipes are arranged in the cooling tower main body, and two ends of each circulating connecting pipe penetrate through one end of the cooling tower main body and are arranged outside the cooling tower main body. And a water pump is mounted at the top end of the cooling tower main body. The circulating connecting pipe is concave, so that the volume of the circulating connecting pipe in the cooling tower main body is larger, when the water pump operates, cooling water refrigerated by a refrigerating machine on the bottom side of the cooling tower main body is pumped, and the cooling water is guided by the water pumping pipe, enters the water outlet pipe, is guided by the water spraying pipe and is sprayed out from the spray head; according to the cooling tower, the surface of the circulating connecting pipe is cooled, hot water in the circulating connecting pipe is driven by cooling water, heat of the circulating connecting pipe is lost, the cooling water in contact with the circulating connecting pipe is increased due to the fact that the size of the circulating connecting pipe in the cooling tower body is larger, and therefore the refrigerating efficiency of the device on the circulating connecting pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of central air conditioning, in particular to a cooling water return device for a central air conditioning. Background Art

[0002] Central air conditioners generally use cooling towers to provide the required cooling capacity for air conditioning systems, and use the principle of liquid gasification refrigeration to dissipate the waste heat generated in industry or refrigeration and air conditioning to offset the heat load of the indoor environment. When the air conditioning cooling tower is in use, the outside air enters the cooling tower from the bottom of the cooling tower under the action of the fan, and the cooling water is sprayed downward from the upper part of the cooling tower onto the condenser tube equipped with circulating water derived from the air conditioning system. The cooling water and the outside air exchange heat and moisture in the cooling tower, which reduces the cooling water temperature and takes away the heat of the hot water in the condenser tube.

[0003] A central air-conditioning cooling water return device in the prior art currently has low cooling efficiency for the circulating connecting pipe and poor practicality. In addition, a central air-conditioning cooling water return device in the prior art will generate water vapor and hot air inside due to heat absorption during cooling, and the traditional device discharges them through openings. This discharge method has low efficiency, resulting in the internal temperature remaining unchanged for a long time and poor practicality. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that the cooling efficiency of the circulation connecting pipe is low and the water vapor and hot air will be generated inside the circulating connecting pipe due to the absorption of heat, and the traditional device discharges them through openings. This discharge method has low efficiency and causes the internal temperature to remain high for a long time. A central air-conditioning cooling water return device is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a central air-conditioning cooling water return device, including a cooling tower body, a plurality of circulation connecting pipes are arranged in the cooling tower body, both ends of the plurality of circulation connecting pipes pass through one end of the cooling tower body and are arranged outside the cooling tower body, a water pump is installed at the top of the cooling tower body, a water outlet pipe is fixed at the bottom end of the water pump, the bottom end of the water outlet pipe passes through the inner top wall of the cooling tower body and is fixed with a water spray pipe, a plurality of nozzles are installed at the bottom end of the water spray pipe, a water suction pipe is fixed at the top of the water pump, the end of the water suction pipe away from the water pump passes through the lower outer wall of the cooling tower body and is arranged in the cooling tower body, an air inlet cavity is opened on the lower outer wall of the cooling tower body, an air outlet cavity is opened on the upper outer wall of the cooling tower body, a fan is arranged on one side of the air outlet cavity, and a refrigerator is installed on the lower outer wall of the cooling tower body.

[0006] Preferably, a chassis matching the air outlet cavity is fixed on the outer wall of the cooling tower body, a connecting plate is fixed on the inner wall of the chassis, a motor is installed on one end of the connecting plate facing the cooling tower body, and the fan is installed at the output end of the motor.

[0007] Preferably, a second dustproof plate is fixed on the inner wall of the chassis at one side of the connecting plate, and a first dustproof plate is fixed on the inner wall of the cooling tower body in the air inlet cavity.

[0008] Preferably, a guide plate is fixed on the inner wall of the cooling tower body below the circulation connecting pipe, the air inlet cavity is arranged on one side of the guide plate, and a baffle matching the air outlet cavity is fixed on the inner wall of the cooling tower body.

[0009] Preferably, mounting plates are fixed to the outer walls at both ends of the circulation connecting pipe outside the cooling tower body, a plurality of mounting holes are opened in the mounting plates, a plurality of first support plates are fixed to the inner walls of the cooling tower body at both ends, and the circulation connecting pipe is fixed to the cooling tower body through the first support plates.

[0010] Preferably, a plurality of second support plates are fixed to both ends of the inner wall of the cooling tower body, and the water spray pipe is fixed to the cooling tower body through the second support plates.

[0011] Preferably, a plurality of third support plates are fixed on the outer wall of the cooling tower body, and the water pumping pipe is fixed to the cooling tower body through the third support plates.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] In the utility model, the shape of the circulation connecting pipe is concave, so that the volume of the circulation connecting pipe in the cooling tower body is larger. When the water pump is running, cooling water cooled by the refrigeration mechanism at the bottom side of the cooling tower body is drawn, and the cooling water enters the water outlet pipe through the guidance of the water pumping pipe, and is then sprayed out from the nozzle through the guidance of the water spraying pipe, thereby cooling the surface of the circulation connecting pipe, so that the hot water in the circulation connecting pipe is driven by the cooling water to cause its heat to be lost. Since its volume in the cooling tower body is larger, it contacts more cooling water, thereby improving the refrigeration efficiency of the device for the circulation connecting pipe. In addition, the device drives the rotation of the fan through the operation of the motor, so that the hot air in the cooling tower body can be quickly discharged, and the practicality is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a central air-conditioning cooling water return device is proposed for the utility model;

[0015] Figure 2 A three-dimensional diagram of a central air-conditioning cooling water return device is proposed for the utility model;

[0016] Figure 3 A cross-sectional view of a central air-conditioning cooling water return device is provided for the utility model;

[0017] Figure 4 The utility model provides a schematic diagram of the internal structure of a cooling tower body of a central air-conditioning cooling water return device.

[0018] Legend: 1. Cooling tower body; 2. Circulation connecting pipe; 3. First support plate; 4. Mounting plate; 5. Mounting hole; 6. Guide plate; 7. Water pump; 8. Water outlet pipe; 9. Water spray pipe; 10. Nozzle; 11. Second support plate; 12. Suction pipe; 13. Third support plate; 14. Air inlet cavity; 15. First dustproof plate; 16. Air outlet cavity; 17. Baffle; 18. Chassis; 19. Connecting plate; 20. Motor; 21. Fan; 22. Second dustproof plate; 23. Refrigeration machine. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment 1, as Figure 1-4 As shown, the utility model provides a central air-conditioning cooling water return device, including a cooling tower body 1, a plurality of circulation connecting pipes 2 are arranged in the cooling tower body 1, both ends of the plurality of circulation connecting pipes 2 pass through one end of the cooling tower body 1 and are arranged outside the cooling tower body 1, a water pump 7 is installed at the top of the cooling tower body 1, a water outlet pipe 8 is fixed at the bottom end of the water pump 7, the bottom end of the water outlet pipe 8 passes through the inner top wall of the cooling tower body 1 and is fixed with a water spray pipe 9, a plurality of nozzles 10 are installed at the bottom end of the water spray pipe 9, a water pump 12 is fixed at the top of the water pump 7, one end of the water pump 12 away from the water pump 7 passes through the lower outer wall of the cooling tower body 1 and is arranged in the cooling tower body 1, an air inlet cavity 14 is opened on the lower outer wall of the cooling tower body 1, an air outlet cavity 16 is opened on the upper outer wall of the cooling tower body 1, a fan 21 is arranged on one side of the air outlet cavity 16, and a refrigerator 23 is installed on the lower outer wall of the cooling tower body 1.

[0022] The effect achieved by the entire embodiment 1 is that when the water pump 7 is running, the cooling water cooled by the refrigerator 23 on the bottom side of the cooling tower body 1 is extracted, and the cooling water is guided by the water pumping pipe 12 to enter the water outlet pipe 8, and then guided by the water spraying pipe 9 to be sprayed out from the nozzle 10, thereby cooling the surface of the circulating connecting pipe 2, so that the hot water in the circulating connecting pipe 2 is driven by the cooling water, causing its heat to be lost, and the cooling water that absorbs the heat is guided by the guide plate 6 and returns to the bottom side of the cooling tower body 1, achieving the effect of water return, and the refrigerator 23 will cool it.

[0023] Embodiment 2, as Figure 1-4 As shown, a chassis 18 matching the air outlet cavity 16 is fixed on the outer wall of the cooling tower body 1, a connecting plate 19 is fixed on the inner wall of the chassis 18, a motor 20 is installed on the end of the connecting plate 19 facing the cooling tower body 1, and a fan 21 is installed at the output end of the motor 20. A second dustproof plate 22 is fixed on the inner wall of the chassis 18 on one side of the connecting plate 19, a first dustproof plate 15 is fixed on the inner wall of the cooling tower body 1 in the air inlet cavity 14, a guide plate 6 is fixed on the inner wall of the cooling tower body 1 below the circulation connecting pipe 2, the air inlet cavity 14 is provided on one side of the guide plate 6, and a second dustproof plate 22 is fixed on the inner wall of the cooling tower body 1 on one side of the guide plate 6. There is a baffle 17 matching the air outlet cavity 16, and the outer walls of both ends of the circulation connecting pipe 2 outside the cooling tower body 1 are fixed with mounting plates 4, and a plurality of mounting holes 5 are opened in the mounting plate 4. A plurality of first support plates 3 are fixed to both ends of the inner wall of the cooling tower body 1, and the circulation connecting pipe 2 is fixed to the cooling tower body 1 through the first support plate 3. A plurality of second support plates 11 are fixed to both ends of the inner wall of the cooling tower body 1, and the water spray pipe 9 is fixed to the cooling tower body 1 through the second support plate 11. A plurality of third support plates 13 are fixed on the outer wall of the cooling tower body 1, and the water extraction pipe 12 is fixed to the cooling tower body 1 through the third support plate 13.

[0024] The effect achieved by the entire embodiment 2 is that the circulation connecting pipe 2 is concave in shape, so that the volume of the circulation connecting pipe 2 in the cooling tower body 1 is larger, and the cooling water it contacts will increase, thereby improving the cooling efficiency of the device for the circulation connecting pipe 2. In addition, the device drives the rotation of the fan 21 through the operation of the motor 20, so that the hot air in the cooling tower body 1 can be quickly discharged, and the practicality is stronger. Through the setting of the first dustproof plate 15 and the second dustproof plate 22, dust in the air can be blocked to prevent dust from entering the device. Through the setting of the baffle 17, the cooling water sprayed by the nozzle 10 is prevented from entering the air outlet cavity 16.

[0025] Working principle: When the device is used, the circulating connecting pipe 2 is connected to the connecting pipe of the external air-conditioning system through the mounting plate 4 and the mounting hole 5, and the water circulating in the external air-conditioning system will flow through the circulating connecting pipe 2. When the water pump 7 is running, the cooling water cooled by the refrigerator 23 on the bottom side of the cooling tower body 1 is extracted, and the cooling water is guided by the water pumping pipe 12 and enters the water outlet pipe 8, and then is guided by the water spraying pipe 9 and sprayed out from the nozzle 10, thereby cooling the surface of the circulating connecting pipe 2, so that the hot water in the circulating connecting pipe 2 is driven by the cooling water, causing its heat to be lost, and the cooling water that absorbs the heat returns to the bottom side of the cooling tower body 1 through the guidance of the guide plate 6, achieving the effect of water return, and the refrigerator 23 will cool it.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A central air conditioning cooling water return device, comprising a cooling tower body (1), characterized in that: The cooling tower body (1) is provided with a plurality of circulation connection pipes (2), both ends of the plurality of circulation connection pipes (2) pass through one end of the cooling tower body (1) and are arranged outside the cooling tower body (1), a water pump (7) is installed at the top end of the cooling tower body (1), a water outlet pipe (8) is fixed at the bottom end of the water pump (7), the bottom end of the water outlet pipe (8) passes through the inner top wall of the cooling tower body (1) and is fixed with a water spray pipe (9), and a plurality of nozzles (10) are installed at the bottom end of the water spray pipe (9), A water pump (12) is fixed to the top of the water pump (7); an end of the water pump (12) away from the water pump (7) passes through the lower outer wall of the cooling tower body (1) and is arranged in the cooling tower body (1); an air inlet cavity (14) is provided on the lower outer wall of the cooling tower body (1); an air outlet cavity (16) is provided on the upper outer wall of the cooling tower body (1); a fan (21) is provided on one side of the air outlet cavity (16); and a refrigerator (23) is installed on the lower outer wall of the cooling tower body (1).

2. A central air conditioning cooling water return device according to claim 1, characterized in that: A chassis (18) matching the air outlet cavity (16) is fixed on the outer wall of the cooling tower body (1), a connecting plate (19) is fixed on the inner wall of the chassis (18), a motor (20) is installed at one end of the connecting plate (19) facing the cooling tower body (1), and the fan (21) is installed at the output end of the motor (20).

3. A central air conditioning cooling water return device according to claim 2, characterized in that: A second dustproof plate (22) is fixed on the inner wall of the chassis (18) at one side of the connecting plate (19), and a first dustproof plate (15) is fixed on the inner wall of the cooling tower body (1) at the air inlet cavity (14).

4. A central air conditioning cooling water return device according to claim 1, characterized in that: A guide plate (6) is fixed on the inner wall of the cooling tower body (1) below the circulation connecting pipe (2); the air inlet cavity (14) is arranged on one side of the guide plate (6); and a baffle (17) matching the air outlet cavity (16) is fixed on the inner wall of the cooling tower body (1).

5. A central air conditioning cooling water return device according to claim 1, characterized in that: The outer walls of both ends of the circulation connection pipe (2) outside the cooling tower body (1) are fixed with mounting plates (4), and a plurality of mounting holes (5) are provided in the mounting plates (4). A plurality of first support plates (3) are fixed to both ends of the inner wall of the cooling tower body (1), and the circulation connection pipe (2) is fixed to the cooling tower body (1) via the first support plates (3).

6. A central air conditioning cooling water return device according to claim 1, characterized in that: A plurality of second support plates (11) are fixed to both ends of the inner wall of the cooling tower body (1), and the water spray pipe (9) is fixed to the cooling tower body (1) via the second support plates (11).

7. A central air conditioning cooling water return device according to claim 1, characterized in that: A plurality of third support plates (13) are fixed on the outer wall of the cooling tower body (1), and the water extraction pipe (12) is fixed to the cooling tower body (1) via the third support plates (13).

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