Closed cooling tower

Abstract

The utility model provides a closed cooling tower which comprises a tower body, a heat exchanger is installed in the tower body, a water supplementing opening is formed in the top of a water collecting base, a water conveying pipe is fixedly connected to the output end of a water pump, a fixing plate is fixedly connected to the side surface of the tower body, and an annular groove is formed in the end, away from the water pump, of the water conveying pipe. A second sealing ring is installed in the first fixing ring, a second connecting pipe is slidably connected to the end, away from the first fixing ring, of the first connecting pipe, the end of the first connecting pipe is in threaded connection with the inner side wall of the second fixing ring, and a third sealing ring is installed in the second fixing ring. According to the heat exchanger, through the arrangement of the filtering tank, the first connecting pipe, the first fixing ring and the second fixing ring, the filtering tank can be conveniently disassembled, impurities in the filtering tank can be cleaned, and through the arrangement of the flow guide groove, the vertical groove and the spray head, the exterior of the heat exchanger can be conveniently cooled.

Description

Technical Field

[0001] This utility model relates to the field of closed-loop cooling tower technology, and in particular to a closed-loop cooling tower. Background Technology

[0002] Closed-circuit cooling towers place tubular heat exchangers inside the tower. Cooling is achieved through heat exchange between circulating air, external spray water, and internal circulating water. Because the circulating water is in a closed loop, it ensures that the water quality is not polluted, effectively protecting the efficient operation of the main equipment and extending its service life. When the outside temperature is low, the spray water system can be shut down, saving water. With the implementation of national energy conservation and emission reduction policies and the increasing scarcity of water resources, closed-circuit cooling towers have been widely used in industries such as steel metallurgy, power electronics, machining, and air conditioning systems in recent years.

[0003] Existing closed-loop cooling towers use spray pipes to spray water onto the condenser tubes for heat dissipation. Because the water is recycled, impurities from outside the tower can easily enter the water flow inside the tower through the ventilation windows, clogging the spray pipes during transportation and affecting the operation of the equipment. Therefore, a closed-loop cooling tower is needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a closed-loop cooling tower.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a closed cooling tower, comprising a tower body, an internal heat exchanger, a water collection base fixedly connected to the bottom of the tower body, a water inlet installed at the top of the water collection base, a water pump installed at the bottom inner side of the water collection base, a water delivery pipe fixedly connected to the output end of the water pump, a fixing plate fixedly connected to the side surface of the tower body, and the water delivery pipe located inside the fixing plate, an annular groove being formed at the end of the water delivery pipe away from the water pump, a first sealing ring being installed inside the annular groove, a filter tank being threadedly connected inside the annular groove, a first fixing ring being fixedly connected to the circumferential surface of the water delivery pipe, a second sealing ring being installed inside the first fixing ring, a first connecting pipe being threadedly connected inside the first fixing ring, a second connecting pipe being slidably connected to the end of the first connecting pipe away from the first fixing ring, a second fixing ring being fixedly connected to the inner sidewall of the second connecting pipe, the end of the first connecting pipe being threadedly connected to the inner sidewall of the second fixing ring, and a third sealing ring being installed inside the second fixing ring, and the third sealing ring being fitted against the end of the first connecting pipe.

[0006] Furthermore, a handle is fixedly connected to the circumferential surface of the first connecting tube, and the handle is provided with anti-slip texture on the outside.

[0007] Furthermore, the heat exchanger is internally fixedly connected to an inlet pipe and an outlet pipe, with the outlet pipe located above the inlet pipe.

[0008] Furthermore, a support block is fixedly connected to the inner bottom of the tower body, and the bottom of the heat exchanger is in contact with the top of the support block. A drainage groove is provided in the inner bottom of the tower body.

[0009] Furthermore, a second connecting pipe is fixedly connected to the end of the second connecting pipe away from the first connecting pipe, and a spray pipe is fixedly connected to the bottom of the second connecting pipe, with a spray head fixedly connected inside the spray pipe.

[0010] Furthermore, the heat exchanger has flow guide grooves on its top and side surfaces, and vertical grooves on its front and rear ends, with the flow guide grooves and vertical grooves corresponding to the positions of the nozzles.

[0011] This utility model has the following beneficial effects:

[0012] 1. Compared with the prior art, this closed cooling tower, by setting up a filter tank, a first connecting pipe, a first fixing ring, and a second fixing ring, uses a water pump to discharge water from the water collection base through the water supply pipe, filter tank, first connecting pipe, and second connecting pipe into the interior of the tower body during use. The filter tank filters the delivered water flow, thereby intercepting impurities in the water flow and avoiding any impact on the use of the device. Furthermore, the first connecting pipe can slide into the second connecting pipe when rotating, which facilitates separation from the first fixing ring and makes it easy to disassemble the filter tank to clean the impurities inside the filter tank.

[0013] 2. Compared with the prior art, this closed cooling tower, by setting up a guide channel, a vertical channel and a nozzle, delivers water flow through a second connecting pipe into a spray pipe, and sprays water flow from the nozzle to spray the outer surface of the heat exchanger. The guide channel and vertical channel are set up to increase the contact area between the heat exchanger and the water flow. The water flow flows out through the guide channel and vertical channel, thereby facilitating the cooling of the outside of the heat exchanger. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure proposed in this utility model;

[0016] Figure 3 The present utility model proposes Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 The present utility model proposes Figure 3 Enlarged view at point B in the middle;

[0018] Figure 5 The present utility model proposes Figure 2 Enlarged view of point C in the middle.

[0019] In the diagram: 1. Tower body; 2. Heat exchanger; 3. Inlet pipe; 4. Outlet pipe; 5. Support block; 6. Drainage trough; 7. Water collection base; 8. Water pump; 9. Water supply pipe; 10. Water inlet; 11. Fixing plate; 12. Annular groove; 13. First sealing ring; 14. Filter tank; 15. First fixing ring; 16. Second sealing ring; 17. First connecting pipe; 18. Second fixing ring; 19. Third sealing ring; 20. Handle; 21. Second connecting pipe; 22. Spray pipe; 23. Spray head; 24. Guide groove; 25. Vertical groove. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "front", "rear", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figure 1-5This utility model provides a closed-loop cooling tower, comprising a tower body 1, a heat exchanger 2 installed inside the tower body 1, a water collection base 7 fixedly connected to the bottom of the tower body 1, a water inlet 10 installed at the top of the water collection base 7, a water pump 8 installed at the bottom inner side of the water collection base 7, a water delivery pipe 9 fixedly connected to the output end of the water pump 8, a fixing plate 11 fixedly connected to the side surface of the tower body 1, and the water delivery pipe 9 located inside the fixing plate 11. An annular groove 12 is formed at the end of the water delivery pipe 9 away from the water pump 8, a first sealing ring 13 is installed inside the annular groove 12, and a filter tank is threadedly connected inside the annular groove 12. 14. A first fixing ring 15 is fixedly connected to the circumferential surface of the water supply pipe 9. A second sealing ring 16 is installed inside the first fixing ring 15. A first connecting pipe 17 is threadedly connected inside the first fixing ring 15. A second connecting pipe 21 is slidably connected to the end of the first connecting pipe 17 away from the first fixing ring 15. A second fixing ring 18 is fixedly connected to the inner wall of the second connecting pipe 21. The end of the first connecting pipe 17 is threadedly connected to the inner wall of the second fixing ring 18. A third sealing ring 19 is installed inside the second fixing ring 18, and the third sealing ring 19 fits against the end of the first connecting pipe 17. When in use, the device uses a water pump 8 to pump water from the water collection base 7 through the water supply pipe 9, filter tank 14, first connecting pipe 17, and second connecting pipe 21 into the tower body 1. The filter tank 14 filters the water flow, thereby intercepting impurities in the water flow and preventing them from affecting the use of the device. When the first connecting pipe 17 rotates, it can slide into the second connecting pipe 21, which facilitates separation from the first fixing ring 15 and makes it easy to disassemble the filter tank 14 to clean the impurities inside the filter tank 14.

[0024] A handle 20 is fixedly connected to the circumferential surface of the first connecting tube 17, and the outer surface of the handle 20 is provided with anti-slip texture. The handle 20 facilitates the rotation of the first connecting tube 17.

[0025] The heat exchanger 2 is internally connected to an inlet pipe 3 and an outlet pipe 4, with the outlet pipe 4 located above the inlet pipe 3. Heat exchange tubes are installed inside the heat exchanger 2, allowing liquid to enter from the inlet pipe 3 and exit from the outlet pipe 4 after passing through the internal heat exchange tubes.

[0026] A support block 5 is fixedly connected to the inner bottom of the tower body 1, and the bottom of the heat exchanger 2 is in contact with the top of the support block 5. A drainage groove 6 is provided in the inner bottom of the tower body 1. The support block 5 is used to support and fix the heat exchanger 2.

[0027] The second connecting pipe 21 is fixedly connected to one end away from the first connecting pipe 17. A spray pipe 22 is fixedly connected to the bottom of the second connecting pipe 21, and a nozzle 23 is fixedly connected inside the spray pipe 22. Water from inside the second connecting pipe 21 is sprayed out from the nozzle 23 using the spray pipe 22.

[0028] The heat exchanger 2 has guide grooves 24 on its top and side surfaces, and vertical grooves 25 on its front and rear ends. The guide grooves 24 and vertical grooves 25 correspond to the positions of the nozzles 23. The guide grooves 24 and vertical grooves 25 are provided to increase the contact area between the heat exchanger 2 and the water flow. The water flows out through the guide grooves 24 and vertical grooves 25, which facilitates the cooling of the outside of the heat exchanger 2.

[0029] Air inlet windows are provided on both sides of the tower body 1. Pre-cooling packing is installed inside the tower body 1, and an exhaust fan is installed on the top of the tower body 1. The pre-cooling packing is located below the nozzle 23. The air entering the tower body 1 is finally discharged from the exhaust fan. Pressure gauges and temperature probes are installed on the side surface of the tower body 1 to facilitate the monitoring of the air pressure and temperature inside the tower body 1.

[0030] A liquid level probe is installed at the water inlet 10 to detect the water level in the water collection base 7 and replenish water in a timely manner according to the water level. A drain outlet is provided on the side of the water collection base 7 to facilitate the discharge of dirt from the water collection base 7.

[0031] Working principle: When the device is in use, the water pump 8 pumps the water inside the water collection base 7 through the water supply pipe 9, filter tank 14, first connecting pipe 17 and second connecting pipe 21 into the tower body 1. The filter tank 14 filters the water flow, thereby intercepting impurities in the water flow and avoiding any impact on the use of the device. When the first connecting pipe 17 rotates, it can slide into the second connecting pipe 21, which facilitates separation from the first fixing ring 15, and makes it easy to disassemble the filter tank 14 to clean the impurities inside the filter tank 14. The water flow cools the outside of the heat exchanger 2 through the spray pipe 22 and the nozzle 23, and falls to the bottom of the tower body 1 through the guide channel 24 and the vertical channel 25, and is discharged into the water collection base 7 from the drainage channel 6.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A closed cooling tower comprising a tower body (1), characterised in that: The inside of the tower body (1) is provided with a heat exchanger (2), the bottom of the tower body (1) is fixedly connected with a water collecting base (7), the top of the water collecting base (7) is provided with a water supplementing opening (10), the inner bottom of the water collecting base (7) is provided with a water pump (8), the output end of the water pump (8) is fixedly connected with a water conveying pipe (9), the side surface of the tower body (1) is fixedly connected with a fixed plate (11), and the water conveying pipe (9) is located in the inside of the fixed plate (11), the end, away from the water pump (8), of the water conveying pipe (9) is provided with an annular groove (12), the inside of the annular groove (12) is provided with a first sealing ring (13), the inside of the annular groove (12) is threadedly connected with a filter tank (14), the circumference of the water conveying pipe (9) is fixedly connected with a first fixed ring (15), the inside of the first fixed ring (15) is provided with a second sealing ring (16), the inside of the first fixed ring (15) is threadedly connected with a first connecting pipe (17), the end, away from the first fixed ring (15), of the first connecting pipe (17) is slidably connected with a second connecting pipe (21), the inner side wall of the second connecting pipe (21) is fixedly connected with a second fixed ring (18), the end of the first connecting pipe (17) is threadedly connected with the inner side wall of the second fixed ring (18), the inside of the second fixed ring (18) is provided with a third sealing ring (19), and the third sealing ring (19) is attached to the end of the first connecting pipe (17).

2. A closed cooling tower as claimed in claim 1, wherein: The circumference of the first connecting pipe (17) is fixedly connected with a handle (20), and the outer portion of the handle (20) is provided with anti-skid lines.

3. A closed cooling tower as claimed in claim 2, wherein: The inside of the heat exchanger (2) is fixedly connected with a water inlet pipe (3) and a water outlet pipe (4), and the water outlet pipe (4) is located above the water inlet pipe (3).

4. A closed cooling tower as claimed in claim 3, wherein: The inner bottom of the tower body (1) is fixedly connected with a supporting block (5), and the bottom of the heat exchanger (2) is attached to the top of the supporting block (5), and the inner bottom of the tower body (1) is provided with a drainage groove (6).

5. A closed cooling tower as claimed in claim 1, wherein: The end, away from the first connecting pipe (17), of the second connecting pipe (21) is fixedly connected with a second connecting pipe (21), the bottom of the second connecting pipe (21) is fixedly connected with a spraying pipe (22), and the inside of the spraying pipe (22) is fixedly connected with a spray head (23).

6. A closed cooling tower as claimed in claim 5, wherein: The top and the side surface of the heat exchanger (2) are provided with flow guide grooves (24), and the front end and the rear end of the heat exchanger (2) are provided with vertical grooves (25), and the flow guide grooves (24) and the vertical grooves (25) correspond to the positions of the spray head (23).

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