Closed cooling tower capable of conveniently cleaning inner wall of heat exchange pipeline

Abstract

The utility model relates to the technical field of cleaning, in particular to a closed cooling tower convenient for cleaning the inner wall of a heat exchange pipeline, which comprises a tower body, a reservoir for storing clear water is arranged in the tower body, a support frame is welded outside the tower body, a water suction pump is fixedly mounted on the support frame, a heat exchange pipe is fixedly mounted in the tower body, and the heat exchange pipe is fixedly connected with the reservoir. A cleaning mechanism for cleaning the heat exchange tube is arranged in the tower body, a driving motor is fixedly mounted at the top end of the tower body, and a spraying mechanism driven by the driving motor is arranged in the tower body. The clean water storage box is arranged on the cleaning liquid storage box, and the first water outlet pipe is communicated with the second water outlet pipe, so that after the cleaning liquid is used, the residual cleaning liquid in the first water outlet pipe can be effectively flushed away when the heat exchange pipe is flushed by the clean water; and the driving motor is used for controlling the spraying head to do circular motion, so that the spraying range of clear water is wider, and the demand quantity of the spraying head is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning, in particular to a closed cooling tower which is convenient for cleaning the inner wall of a heat exchange pipe. Background Technique

[0002] A cooling tower uses water as a circulating coolant, absorbs heat from a system and discharges it into the atmosphere to reduce the water temperature. A heat exchange pipe for conveying water to be cooled is installed in the cooling tower, and spray heads are uniformly installed on the upper part of the heat exchange pipe to spray water for cooling. The water to be cooled will contact the inner wall of the heat exchange pipe during the conveying process, causing corrosion or impurity accumulation. Long-term accumulation will lead to pipe breakage or blockage, so the heat exchange pipe needs to be cleaned regularly.

[0003] The existing cleaning technology often adopts a closed cooling tower for facilitating the cleaning of the inner wall of a heat exchange pipe, as disclosed in the patent with the publication number CN217604734U. It conveys a cleaning agent into the pipe body, and after the cleaning agent stays in the pipe body for a period of time, the second delivery pipe and the first branch pipe are opened, and the pipe body is flushed with clean water. At present, many spray heads are installed in the cooling tower, which brings the problem of high cost. Moreover, the spray heads are all fixedly installed, so that the spraying area range of the spray heads is limited and cannot be adjusted in terms of angle and orientation according to the pipeline, seriously affecting the cooling effect. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem of too many spray heads in the existing technology, and to provide a closed cooling tower which is convenient for cleaning the inner wall of a heat exchange pipe.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A closed cooling tower which is convenient for cleaning the inner wall of a heat exchange pipe, comprising a tower body. A water storage tank for storing clean water is arranged inside the tower body. A support frame is welded outside the tower body, and a water pump is fixedly installed on the support frame. A heat exchange pipe is fixedly installed inside the tower body. A cleaning mechanism for cleaning the heat exchange pipe is arranged inside the tower body. A driving motor is fixedly installed at the top end of the tower body, and a spraying mechanism driven by the driving motor is arranged inside the tower body.

[0007] Preferably, the cleaning mechanism includes a first water inlet pipe for connecting the water storage tank and the spraying mechanism. A cleaning liquid storage tank is fixedly installed at the upper end position of the heat exchange pipe, and a clean water storage tank is fixedly installed on the cleaning liquid storage tank. A supply pipe extending outside the tower body is welded at the left end position of the cleaning liquid storage tank, and a first water outlet pipe communicated with the heat exchange pipe is welded at the bottom end of the cleaning liquid storage tank. A second water inlet pipe communicated with the first water inlet pipe is welded at the left end position of the clean water storage tank, and a second water outlet pipe communicated with the first water outlet pipe is welded at the right end position of the clean water storage tank;

[0008] A third water outlet pipe extending outside the tower body is welded at the lower end position of the heat exchange pipe, and a waste water collection box for filtration is connected to the output end of the third water outlet pipe.

[0009] Preferably, the bottom ends of the cleaning liquid storage tank and the clean water storage tank are inclined surfaces, and the first water outlet pipe and the second water outlet pipe are welded at the lowermost positions of the inclined surfaces.

[0010] Preferably, electromagnetic valves for controlling the opening and closing of the pipelines are arranged in the first water outlet pipe, the second water outlet pipe and the third water outlet pipe, and the electromagnetic valve in the first water outlet pipe is arranged above the connection position with the second water outlet pipe.

[0011] Preferably, the spraying mechanism includes an annular through groove opened at the central position of the top end of the tower body. A support plate is welded inside the tower body, and a fixed base is welded on the support plate. A rotating column is rotatably sleeved on the fixed base. A receiving block is welded on the rotating column, and a support column for supporting the plate inside the annular through groove is rotatably installed on the receiving block. A rotating cylinder is welded at the left end position of the receiving block. A connecting column is movably sleeved inside the rotating cylinder. A U-shaped plate is welded at the top end of the rotating cylinder, and a T-shaped column is rotatably installed on the U-shaped plate. The T-shaped column is rotatably installed on the tower body, and a transmission gear is welded at the free end of the T-shaped column. A conical gear meshed with the transmission gear is fixedly installed at the output end of the driving motor. A spray head for spraying clean water is welded at the bottom end of the connecting column. A hose is rotatably installed at the bottom end of the first water inlet pipe, and a through hole sliding column connected to the hose is movably installed in the annular through groove. A transfer pipe communicated with the spray head is welded at the bottom end of the through hole sliding column.

[0012] Preferably, the rotating cylinder is obliquely installed on the receiving block.

[0013] Compared with the prior art, the present utility model has the following advantages:

[0014] 1. The present utility model arranges the clean water storage tank on the cleaning liquid storage tank, and the first water outlet pipe and the second water outlet pipe are communicated. After the cleaning liquid is used up, when the heat exchange pipe is rinsed with clean water, the residual cleaning liquid in the first water outlet pipe can be effectively rinsed clean, preventing long-term retention and causing corrosion damage to the pipeline.

[0015] 2. The present utility model controls the spray head to make a circular motion through the driving motor, and sets the through hole sliding column to freely slide in the annular through groove following the spray head, so that the spraying range of clean water is wider, thereby reducing the demand for spray heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a closed cooling tower for conveniently cleaning the inner wall of a heat exchange pipeline proposed by the present utility model;

[0017] Figure 2 A cross-sectional view of a closed cooling tower for convenient cleaning of the inner wall of a heat exchange pipe proposed by the utility model;

[0018] Figure 3 The utility model provides a schematic diagram of the spray mechanism structure of a closed cooling tower which is convenient for cleaning the inner wall of a heat exchange pipe.

[0019] In the figure: 1. tower body; 2. water reservoir; 3. support frame; 4. water pump; 5. driving motor; 6. first water inlet pipe; 7. cleaning liquid storage tank; 8. clean water storage tank; 9. supply pipe; 10. first water outlet pipe; 11. second water inlet pipe; 12. second water outlet pipe; 13. third water outlet pipe; 14. waste water collection tank; 15. support plate; 16. fixed base; 17. rotating column; 18. receiving block; 19. support column; 20. rotating drum; 21. connecting column; 22. U-shaped plate; 23. T-shaped column; 24. transmission gear; 25. conical gear; 26. sprinkler head; 27. hose; 28. through-hole sliding column; 29. ​​transmission pipe; 30. heat exchange tube; 31. annular groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figures 1-3 A closed cooling tower for convenient cleaning of the inner wall of a heat exchange pipe comprises a tower body 1, a water reservoir 2 for storing clean water is arranged in the tower body 1, the clean water sprayed out will be recycled into the water reservoir 2 again, a support frame 3 is welded on the outside of the tower body 1, and a water pump 4 is fixedly installed on the support frame 3, a heat exchange pipe 30 is fixedly installed in the tower body 1, a cleaning mechanism for cleaning the heat exchange pipe 30 is arranged in the tower body 1, a driving motor 5 is fixedly installed on the top of the tower body 1, and a spraying mechanism driven by the driving motor 5 is arranged in the tower body 1, the water pump 4 pumps the clean water out of the water reservoir 2, and supplies clean water to the cleaning mechanism and the spraying mechanism at the same time.

[0022] The cleaning mechanism includes a first water inlet pipe 6 for connecting the reservoir 2 and the spraying mechanism. At the upper end of the heat exchange pipe 30, a cleaning liquid storage tank 7 is fixedly installed, and a clean water storage tank 8 is fixedly installed on the cleaning liquid storage tank 7. The bottoms of the cleaning liquid storage tank 7 and the clean water storage tank 8 are inclined surfaces, which facilitate the liquid in the tank to flow into the heat exchange pipe 30 through the pipeline. A supply pipe 9 extending outside the tower body 1 is welded at the left end of the cleaning liquid storage tank 7. The opening of the supply pipe 9 faces upward, and when the cleaning liquid is exhausted, replenishment can be carried out through the above-mentioned opening. Moreover, a first water outlet pipe 10 communicating with the heat exchange pipe 30 is welded at the bottom of the cleaning liquid storage tank 7. A second water inlet pipe 11 communicating with the first water inlet pipe 6 is welded at the left end of the clean water storage tank 8. The second water inlet pipe 11 is obliquely connected to the first water inlet pipe 6, which can accelerate the replenishment of clean water to the clean water storage tank 8 and also prevent the backflow of clean water when the water pump 4 stops operating. Moreover, a second water outlet pipe 12 communicating with the first water outlet pipe 10 is welded at the right end of the clean water storage tank 8. The first water outlet pipe 10 and the second water outlet pipe 12 are welded at the low end of the inclined surface;

[0023] A third water outlet pipe 13 extending outside the tower body 1 is welded at the lower end of the heat exchange pipe 30, and the output end of the third water outlet pipe 13 is connected to a waste water collection tank 14 for filtration. Electromagnetic valves for controlling the opening and closing of the pipeline are provided in the first water outlet pipe 10, the second water outlet pipe 12, and the third water outlet pipe 13. Moreover, the electromagnetic valve in the first water outlet pipe 10 is arranged above the connection with the second water outlet pipe 12. When the use of the cleaning liquid ends, the electromagnetic valve of the first water outlet pipe 10 is closed, and the electromagnetic valve in the second water outlet pipe 12 is opened. While the clean water is being flushed, the residual cleaning liquid in the first water outlet pipe 10 can also be treated to prevent long-term retention and corrosion damage to the pipeline.

[0024] The spraying mechanism includes an annular through groove 31 opened at the central position of the top end of the tower body 1. A support plate 15 is welded inside the tower body 1, and a fixed base 16 is welded on the support plate 15. A rotating column 17 is rotatably sleeved on the fixed base 16. A receiving block 18 is welded on the rotating column 17, and a support column 19 for supporting the plate inside the annular through groove 31 is rotatably installed on the receiving block 18. A rotating cylinder 20 is welded at the left end position of the receiving block 18. The rotating cylinder 20 is obliquely installed on the receiving block 18. A connecting column 21 is movably sleeved inside the rotating cylinder 20. A U-shaped plate 22 is welded at the top end of the rotating cylinder 20. The installation position of the rotating cylinder 20 is determined by the movement range of the U-shaped plate 22. The connecting column 21 pulls the U-shaped plate 22 to perform a periodic motion. The distance between the installation position of the rotating cylinder 20 and the support column 19 should be greater than the movement range of the U-shaped plate 22 to prevent the two from colliding. A T-shaped column 23 is rotatably installed on the U-shaped plate 22. The T-shaped column 23 is rotatably installed on the tower body 1, and a transmission gear 24 is welded at the free end of the T-shaped column 23. The output end of the driving motor 5 is fixedly installed with a conical gear 25 meshed with the transmission gear 24. A spray head 26 for spraying clear water is welded at the bottom end of the connecting column 21. A hose 27 is rotatably installed at the bottom end of the first water inlet pipe 6 to prevent the hose 27 from knotting during circular motion. A through-hole sliding column 28 connected to the hose 27 is movably installed in the annular through groove 31. A transmission pipe 29 communicated with the spray head 26 is welded at the bottom end of the through-hole sliding column 28. Clear water continuously supplies the spray head 26 through the hose 27, the through-hole sliding column 28 and the transmission pipe 29.

[0025] It should be noted that the specific model specifications of the water pump 4 and the driving motor 5 need to be selected according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated here.

[0026] The functional principle of the present utility model can be described through the following operation methods:

[0027] Turn on the water pump 4 to pump the clear water in the reservoir 2 through the first water inlet pipe 6. At this time, the clear water will be diverted through 11. When replenishing the clear water for the spraying mechanism, the clear water storage tank 8 will also be filled with clear water.

[0028] Turn on the driving motor 5. The conical gear 25 drives the T-shaped column 23 to rotate, and then drives the U-shaped plate 22 to perform a periodic motion. Subsequently, it pulls the spray head 26 to perform a circular motion centered on the rotating column 17. At this moment, the hose 27, the through-hole sliding column 28 and the transmission pipe 29 are pulled and slide along the annular through groove 31 as the path.

[0029] When cleaning the heat exchange tube 30, open the solenoid valve in the first water outlet pipe 10, and the cleaning liquid enters the heat exchange tube 30 and undergoes a chemical reaction with impurities. Subsequently, close the above solenoid valve, open the solenoid valves in the second water outlet pipe 12 and the third water outlet pipe 13, and clean water enters the heat exchange tube 30. Then, the cleaning liquid and impurities are discharged into the waste water collection tank 14 through the third water outlet pipe 13.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A closed cooling tower for convenient cleaning of the inner wall of a heat exchange pipe, comprising a tower body (1), characterized in that: A water reservoir (2) for storing clean water is arranged inside the tower body (1); a support frame (3) is welded outside the tower body (1), and a water pump (4) is fixedly mounted on the support frame (3); a heat exchange tube (30) is fixedly mounted inside the tower body (1); a cleaning mechanism for cleaning the heat exchange tube (30) is arranged inside the tower body (1); a driving motor (5) is fixedly mounted on the top of the tower body (1), and a spraying mechanism driven by the driving motor (5) is arranged inside the tower body (1).

2. A closed cooling tower for convenient cleaning of the inner wall of a heat exchange pipe according to claim 1, characterized in that: The cleaning mechanism comprises a first water inlet pipe (6) for connecting the water storage tank (2) and the spraying mechanism, a cleaning liquid storage box (7) is fixedly mounted on the upper end of the heat exchange tube (30), and a clean water storage box (8) is fixedly mounted on the cleaning liquid storage box (7), a supply pipe (9) extending to the outside of the tower body (1) is welded to the left end of the cleaning liquid storage box (7), and a first water outlet pipe (10) connected to the heat exchange tube (30) is welded to the bottom end of the cleaning liquid storage box (7), a second water inlet pipe (11) connected to the first water inlet pipe (6) is welded to the left end of the clean water storage box (8), and a second water outlet pipe (12) connected to the first water outlet pipe (10) is welded to the right end of the clean water storage box (8); A third water outlet pipe (13) extending to the outside of the tower body (1) is welded to the lower end of the heat exchange tube (30), and the output end of the third water outlet pipe (13) is connected to a wastewater collection box (14) for filtering.

3. A closed cooling tower for convenient cleaning of the inner wall of a heat exchange pipe according to claim 2, characterized in that: The bottom ends of the cleaning liquid storage tank (7) and the clean water storage tank (8) are inclined surfaces, and the first water outlet pipe (10) and the second water outlet pipe (12) are welded to the lower end of the inclined surface.

4. A closed cooling tower for convenient cleaning of the inner wall of a heat exchange pipe according to claim 2, characterized in that: The first water outlet pipe (10), the second water outlet pipe (12) and the third water outlet pipe (13) are all provided with solenoid valves for controlling the opening and closing of the pipes, and the solenoid valve in the first water outlet pipe (10) is arranged above the connection with the second water outlet pipe (12).

5. A closed cooling tower for convenient cleaning of the inner wall of a heat exchange pipe according to claim 2, characterized in that: The spraying mechanism comprises an annular through groove (31) provided at the center position of the top end of the tower body (1); a support plate (15) is welded inside the tower body (1), and a fixed base (16) is welded on the support plate (15); a rotating column (17) is rotatably mounted on the fixed base (16); a receiving block (18) is welded on the rotating column (17), and a supporting column (19) for supporting a plate located inside the annular through groove (31) is rotatably mounted on the receiving block (18); a rotating drum (20) is welded at the left end of the receiving block (18), a connecting column (21) is movably mounted inside the rotating drum (20), a U-shaped plate (22) is welded on the top end of the rotating drum (20), and the U-shaped A T-shaped column (23) is rotatably mounted on the plate (22), the T-shaped column (23) is rotatably mounted on the tower body (1), and a transmission gear (24) is welded to the free end of the T-shaped column (23), a bevel gear (25) meshingly connected to the transmission gear (24) is fixedly mounted on the output end of the drive motor (5), a spray head (26) for spraying clean water is welded to the bottom end of the connecting column (21), a hose (27) is rotatably mounted on the bottom end of the first water inlet pipe (6), and a through-hole sliding column (28) connected to the hose (27) is movably mounted in the annular through groove (31), and a transmission pipe (29) connected to the spray head (26) is welded to the bottom end of the through-hole sliding column (28).

6. A closed cooling tower for convenient cleaning of the inner wall of a heat exchange pipe according to claim 5, characterized in that: The rotating drum (20) is installed obliquely on the receiving block (18).

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