Closed cooling tower

Abstract

The utility model relates to the technical field of cooling towers, and discloses a closed cooling tower, which comprises a tower body and an air duct arranged at the top of the tower body, a driving motor is arranged outside the tower body, a driving wheel is fixed on an output shaft of the driving motor, the driving wheel is in transmission connection with a driven wheel in the air duct through a belt, and the driven wheel is connected with the air duct. A rotating shaft is fixed to the top of the driven wheel and connected with the inner side wall of the tower body through a mounting assembly, and a plurality of fan blades are fixed to the top end of the rotating shaft at equal intervals in the circumferential direction by penetrating through the mounting assembly. According to the closed cooling tower, the driving motor is arranged outside the tower body, so that steam and moisture in the tower can be prevented from entering the driving motor, the effect of protecting the driving motor is achieved, the situation of short-circuit faults of the driving motor is reduced, and the service life of the closed cooling tower can be prolonged; in addition, if the driving motor breaks down, maintenance can be carried out conveniently, and therefore convenience is provided for workers.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a closed cooling tower. Background Art

[0002] Closed cooling tower, referred to as closed cooling tower, (also called evaporative air cooler, closed cooling tower) places a tubular heat exchanger inside the tower, and ensures the cooling effect through heat exchange between circulating air, spray water and circulating water.

[0003] Traditional closed cooling towers usually require the use of exhaust fans to exhaust the moisture vapor in the tower. However, the drive structure on most exhaust fans is located inside the tower body. After long-term use, the moisture in the tower body enters the inside of the motor, causing a short circuit, resulting in damage to the drive structure and affecting the service life of the cooling tower.

[0004] So we proposed a closed cooling tower to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that moisture and steam in the tower body easily enter the interior of the drive structure, causing damage.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a closed cooling tower, comprising a tower body and a wind tube installed on the top of the tower body, a driving motor is installed on the outside of the tower body, a driving wheel is fixed to the output shaft of the driving motor, the driving wheel is connected to the driven wheel in the wind tube through a belt, a rotating shaft is fixed to the top of the driven wheel, the rotating shaft is connected to the inner side wall of the tower body through an installation component, the top end of the rotating shaft passes through the installation component and a plurality of fan blades are fixed at equal intervals along the circumferential direction.

[0007] Furthermore: a plurality of water pumps are installed on the outside of the tower body, a first connecting pipe is installed on the water pumping end of the water pump, and a first valve is installed on each first connecting pipe, the water inlet ends of multiple first connecting pipes are connected to the same first conversion head, and a water pumping pipe is also installed on the first conversion head, the water pumping end of the water pumping pipe is connected to a water collecting tank, a second connecting pipe is installed on the water outlet end of multiple water pumps, a second valve is installed on the second connecting pipe, and the water outlet ends of multiple second connecting pipes are connected to the same second conversion head, a spray inlet pipe extending into the tower body is also installed on the second conversion head, a spray pipe is installed on the water outlet end of the spray inlet pipe, and a plurality of nozzles spraying downwards are installed on the spray pipe.

[0008] Further: the installation assembly includes a bearing support rotatably installed on a rotating shaft, the bearing support is fixed on a fixing rod, and the fixing rod is fixed inside the tower body in an inclined manner.

[0009] Further: a protective shell is installed on the front side of the tower body, and the driving motor is located in the protective shell.

[0010] Further: a mounting plate is fixed to the inner wall of the protective shell, an adjusting rod is installed at the end of the mounting plate, a mounting seat used in conjunction with the adjusting rod is installed on the drive motor, and a bolt for locking the mounting seat is installed on the adjusting rod.

[0011] Further: grilles are installed on the top and back of the tower body.

[0012] Further: the water collecting tank is located inside the tower body.

[0013] Furthermore: the upper part of the water collecting tank is equipped with a water replenishment port and an overflow hole extending to the outside of the tower body, and the height of the water replenishment port is higher than the height of the overflow hole.

[0014] Furthermore: a sewage outlet is provided at the lower part of the water collecting tank, and the sewage outlet extends to the outside of the tower body and is installed with a sealing cover.

[0015] Furthermore: an oil filling port is provided on the tower body, an oil filling pipe connected to the oil filling port is installed inside the tower body, and one end of the oil filling pipe away from the oil filling port is fixed on the bearing support.

[0016] Beneficial effects of the utility model:

[0017] The drive motor of the utility model is arranged on the outside of the tower body, which can prevent the steam and moisture in the tower from entering the interior of the drive motor, thereby protecting the drive motor and reducing the short circuit failure of the drive motor, thereby extending the service life of the closed cooling tower; in addition, if the drive motor fails, it can also be easily repaired, providing convenience for maintenance personnel.

[0018] The utility model is provided with a plurality of water pumps on the outside of the tower body. If one of the water pumps is damaged or fails, the remaining water pumps can normally transport cooling water to the water spray pipe, and can continue to cool the coil, thereby reducing the situation where the coil cannot be cooled due to water pump failure, thereby ensuring the stability of the closed cooling tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 4 It is a partial structural schematic diagram of the water spray structure of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the exhaust structure of the utility model.

[0024] The names corresponding to the marks in the figure are:

[0025] 1. Tower body; 2. Wind tube; 3. Driving motor; 4. Driving wheel; 5. Belt; 6. Driven wheel; 7. Rotating shaft; 8. Mounting assembly; 81. Bearing support; 82. Fixing rod; 9. Fan blade; 10. Water pump; 11. First connecting pipe; 12. First valve; 13. First conversion head; 14. Suction pipe; 15. Water collecting tank; 16. Second connecting pipe; 17. Second conversion head; 18. Spray water inlet pipe; 19. Spray pipe; 20. Spray head; 21. Protective shell; 22. Mounting plate; 23. Adjusting rod; 24. Mounting seat; 25. Bolt; 26. Grille; 27. Water inlet; 28. Overflow hole; 29. ​​Drain outlet; 30. Coil; 31. Flange; 32. Inspection door; 33. Oil filling port; 34. Oil filling pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0027] Embodiment 1

[0028] A closed cooling tower comprises a tower body 1, a plurality of water pumps 10 are arranged outside the tower body 1, the number of the water pumps 10 is preferably two, the pumping ends of the two water pumps 10 are both installed with a first connecting pipe 11, and the first connecting pipe 11 is installed with a first valve 12, through the setting of the first valve 12, the first connecting pipe 11 can be closed, convenient for maintenance, and the water inlets of the two first connecting pipes 11 are connected to the same first conversion head 13, and the first conversion head 13 is also installed with a pumping pipe 14, and the pumping port of the pumping pipe 14 extends into the tower body 1 and is connected to the bottom of the water collecting tank 15, from In order to extract water from the water collecting tank 15, the water outlet ends of the two water pumps 10 are each equipped with a second connecting pipe 16, and the second connecting pipe 16 is each equipped with a second valve. The second valve is set to close the water to prevent water backflow, and the two second connecting pipes 16 are connected to the same spray water inlet pipe 18 through a second conversion head 17, and one end of the spray water inlet pipe 18 extends to the tower body 1 and is fixed with a spray pipe 19, and the spray pipe 19 is equidistantly fixed with a plurality of downward spraying nozzles 20, so that cold water can be sprayed onto the coil 30, which has a good cooling effect.

[0029] A coil 30 is also installed inside the tower body 1, and the coil 30 is located directly below the water spray pipe 19, and the input end and the output end of the coil 30 are connected to a flange 31 through the tower body 1, which can be connected to the external pipeline, so that uncooled cooling water from the outside can enter the interior of the coil 30.

[0030] A water replenishment port 27 and an overflow hole 28 are respectively installed on both sides of the upper part of the water collecting tank 15, and the water replenishment port 27 and the overflow hole 28 extend to the outside of the tower body 1, and the height of the water replenishment port 27 is higher than the height of the overflow hole 28. Through the setting of the water replenishment port 27, if there is too little cooling water in the water collecting tank 15, cooling water can be added to the water collecting tank 15. Through the setting of the overflow hole 28, if too much cooling water is added to the inside of the water collecting tank 15, the cooling water in the water collecting tank 15 can flow out, reducing the situation where the cooling water in the water collecting tank 15 flows into the tower body 1 due to excessive cooling water in the water collecting tank 15. A sewage outlet 29 is opened at the lower part of the water collecting tank 15, and the sewage outlet 29 extends to the outside of the tower body 1 and is installed with a sealing cover. Through the setting of the sewage outlet 29, if the cooling tower is repaired or maintained, the sealing cover can be opened to discharge the water in the water collecting tank 15.

[0031] When the cooling tower is in use, firstly, the external input pipe and output pipe are connected to the flange 31 respectively, and the uncooled cooling water enters the interior of the coil 30, and then two water pumps 10 (in the initial state: the first valve 12 and the second valve are both in the open state), the water inlet end of the water pump 10 extracts the water in the water collecting tank 15 through the first connecting pipe 11, the first conversion head 13 and the pumping pipe 14 in turn, and the extracted water enters the second connecting pipe 16, so that the water in the second connecting pipe 16 enters the spray water inlet pipe 18 through the second conversion head 17, and the water in the spray water inlet pipe 18 enters the spray pipe 19 again, so that the water in the spray pipe 19 is sprayed on the coil 30 through multiple nozzles 20, which can cool the liquid in the coil 30, and the cooled water of the coil 30 falls into the water collecting tank 15 again for recycling.

[0032] If one of the water pumps 10 fails, the first valve 12 and the second valve corresponding to each other can be closed, and the water pump 10 can be repaired. The other water pump 10 can work normally and cool the liquid in the coil 30.

[0033] Embodiment 2

[0034] Grilles 26 are installed on the upper part and the back of the tower body 1. Through the setting of the grilles 26, cold air from the outside can enter the tower body 1. An inspection door 32 is installed on one side of the tower body 1. The size of the inspection door 32 can accommodate maintenance personnel to enter the tower body 1 and perform maintenance.

[0035] A plurality of protective shells 21 are installed on the front side of the tower body 1. The protective shells 21 are arranged to protect the drive motor 3 and reduce the damage caused by collision of the drive motor 3. Two parallel mounting plates 22 are fixed to the inner wall of the protective shell 21, and both ends of the mounting plates 22 are adjustment rods 23, and the adjustment rods 23 are threaded rods. A mounting seat 24 is fixed on the drive motor 3, and the mounting seat 24 is slidably mounted on the adjustment rods 23. Two bolts 25 are threadedly mounted on each adjustment rod 23, and the two bolts 25 are respectively located on both sides of the mounting seat 24, so that the mounting seat 24 can be imprisoned to prevent the drive motor 3 from If shaking occurs during use, the position of the drive motor 3 can be adjusted according to the tightness of the belt 5. The output shaft of the drive motor 3 is fixed with a driving wheel 4, and the driving wheel 4 is transmission-connected to the driven wheel 6 in the wind tube 2 through multiple belts 5. A rotating shaft 7 is fixed to the top of the driven wheel 6, and the rotating shaft 7 is connected to the inner wall of the tower body 1 through an installation assembly. A plurality of fan blades 9 are fixed to the top of the rotating shaft 7 at equal intervals along the circumferential direction, so that the drive motor 3 is located outside the tower body 1 to prevent moisture in the tower body 1 from entering the drive motor 3 and causing damage. At the same time, if the drive motor 3 is damaged, it can be easily repaired.

[0036] Specifically, the mounting assembly includes a bearing support 81 rotatably mounted on the rotating shaft 7, the bearing support 81 is fixed on a fixing rod 82, and the fixing rod 82 is fixed inside the tower body 1 in an inclined manner. By setting the mounting assembly, the rotating shaft 7 can be mounted on the mounting assembly, an oil filling port 33 is opened on the tower body 1, and an oil filling pipe 34 connected to the oil filling port 33 is installed inside the tower body 1, and one end of the oil filling pipe 34 away from the oil filling port 33 is fixed on the bearing support 81. By setting the oil filling port 33 and the oil filling pipe 34, the tower body 1 can be oiled during operation to ensure the continuity of the operation of the device.

[0037] If it is necessary to discharge the moisture in the tower body 1, first turn on the drive motor 3, so that the output shaft of the drive motor 3 drives the driving wheel 4 to rotate at a high speed, and the driving wheel 4 drives the driven wheel 6 to rotate at a high speed through the belt 5, so that the driven wheel 6 drives the rotating shaft 7 to rotate at a high speed on the bearing support 81, and the driven wheel 6 can drive multiple fan blades 9 to rotate at a high speed, so that the moisture in the tower body 1 can be extracted.

Claims

1. A closed cooling tower, comprising a tower body (1) and a wind tube (2) installed on the top of the tower body (1), characterized in that: A driving motor (3) is installed outside the tower body (1); a driving wheel (4) is fixed to the output shaft of the driving motor (3); the driving wheel (4) is connected to a driven wheel (6) in the wind tube (2) through a belt (5); a rotating shaft (7) is fixed to the top of the driven wheel (6); the rotating shaft (7) is connected to the inner wall of the tower body (1) through a mounting assembly; the top end of the rotating shaft (7) passes through the mounting assembly and is fixed with a plurality of fan blades (9) at equal intervals along a circumferential direction.

2. A closed cooling tower according to claim 1, characterized in that: A plurality of water pumps (10) are installed outside the tower body (1), a first connecting pipe (11) is installed at the water pumping end of the water pump (10), and a first valve (12) is installed on each first connecting pipe (11), the water inlet ends of the plurality of first connecting pipes (11) are connected to the same first conversion head (13), and a water pumping pipe (14) is also installed on the first conversion head (13), and the water pumping end of the water pumping pipe (14) is connected to a water collecting tank (15), and the plurality of water pumps (1 0) are all equipped with a second connecting pipe (16) at the water outlet end, the second connecting pipe (16) is equipped with a second valve, the water outlet ends of a plurality of the second connecting pipes (16) are connected to the same second conversion head (17), the second conversion head (17) is also equipped with a spray water inlet pipe (18) extending into the tower body (1), the water outlet end of the spray water inlet pipe (18) is equipped with a spray pipe (19), and the spray pipe (19) is equipped with a plurality of spray heads (20) spraying downwards.

3. A closed cooling tower according to claim 1, characterized in that: The mounting assembly comprises a bearing support (81) rotatably mounted on a rotating shaft (7); the bearing support (81) is fixed on a fixing rod (82); and the fixing rod (82) is fixed inside the tower body (1) in an inclined manner.

4. A closed cooling tower according to claim 1, characterized in that: A protective shell (21) is installed on the front side of the tower body (1), and the drive motor (3) is located inside the protective shell (21).

5. A closed cooling tower according to claim 4, characterized in that: A mounting plate (22) is fixed to the inner side wall of the protective shell (21), an adjusting rod (23) is installed at the end of the mounting plate (22), a mounting seat (24) used in conjunction with the adjusting rod (23) is installed on the driving motor (3), and a bolt (25) used to lock the mounting seat (24) is installed on the adjusting rod (23).

6. A closed cooling tower according to claim 1, characterized in that: Grilles (26) are installed on the top and back of the tower body (1).

7. A closed cooling tower according to claim 2, characterized in that: The water collecting tank (15) is located inside the tower body (1).

8. A closed cooling tower according to claim 7, characterized in that: The upper part of the water collecting box (15) is provided with a water replenishment port (27) and a water overflow hole (28) extending to the outside of the tower body (1), and the height of the water replenishment port (27) is higher than the height of the water overflow hole (28).

9. A closed cooling tower according to claim 7, characterized in that: A sewage outlet (29) is provided at the lower part of the water collecting box (15), and the sewage outlet (29) extends to the outside of the tower body (1) and is equipped with a sealing cover.

10. A closed cooling tower according to claim 1, characterized in that: An oil filling port (33) is provided on the tower body (1), an oil filling pipe (34) connected to the oil filling port (33) is installed inside the tower body (1), and one end of the oil filling pipe (34) away from the oil filling port (33) is fixed on the bearing support (81).

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