An anti-icing countercurrent closed cooling tower

Abstract

The utility model relates to the technical field of cooling towers, and discloses an anti-icing countercurrent closed cooling tower, including a tower body, a liquid inlet pipe is fixedly connected to the front left side of the tower body, a heat exchange pipe is fixedly connected to one end of the liquid inlet pipe, a liquid outlet pipe is fixedly connected to one end of the heat exchange pipe, a first solenoid valve is arranged outside the liquid outlet pipe and the liquid inlet pipe, a shunt pipe is fixedly connected to the left side of the heat exchange pipe, a second solenoid valve is arranged outside the shunt pipe, a fin heat exchanger is fixedly connected to one end of the shunt pipe, the fin heat exchanger is arranged at the bottom of the tower body, an inner pipe is arranged inside the fin heat exchanger, and a conveying assembly is fixedly connected to one end of the inner pipe. In the utility model, rapid heat exchange of heat medium and collection of water are realized, so as to avoid a large amount of water resource waste during cooling, and to avoid ice hanging in the cooling tower in winter, which affects the normal operation of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to an anti-icing countercurrent closed cooling tower. Background Art

[0002] The working principle of the counterflow closed cooling tower is to reduce the temperature by exchanging the hot medium with the cooling medium (usually air). In the tower, the hot medium flows downward from the top, while the cooling medium flows upward from the bottom. The convection and heat exchange between the two reduce the temperature of the hot medium.

[0003] The existing cooling tower uses an air mixing condenser to mix the dry air from outside the tower with the upward humid air in the tower body to reduce the white fog phenomenon at the air outlet. However, there is no solution to the problem that the air inlet louvers may be iced during operation in winter. Therefore, technical personnel in this field provide an anti-icing countercurrent closed cooling tower to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an anti-icing countercurrent closed cooling tower, aiming to improve the problem that the air inlet louvers may be iced during winter operation in the prior art and no solution is provided.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-icing countercurrent closed cooling tower, comprising a tower body, a liquid inlet pipe fixedly connected to the left front side of the tower body, one end of the liquid inlet pipe fixedly connected to a heat exchange pipe, one end of the heat exchange pipe fixedly connected to a liquid outlet pipe, a first solenoid valve is arranged on the outside of the liquid outlet pipe and the liquid inlet pipe, a diverter pipe is fixedly connected to the left side of the heat exchange pipe, a second solenoid valve is arranged on the outside of the diverter pipe, one end of the diverter pipe is fixedly connected to a fin heat exchanger, the fin heat exchanger is arranged at the bottom of the tower body, an inner pipe is arranged inside the fin heat exchanger, and one end of the inner pipe is fixedly connected to a conveying component.

[0006] As a further description of the above technical solution:

[0007] The conveying assembly includes a water pipe, which is fixedly connected to one end of the inner pipe. The outside of the water pipe is fixedly connected to a water collecting box, a mesh plate is arranged on the upper inner side of the water collecting box, and the water collecting box is arranged at the bottom of the fin heat exchanger.

[0008] As a further description of the above technical solution:

[0009] A water pump is fixedly connected to the right side of the outside of the water collecting tank, a water pump output end is fixedly connected to a water pumping pipe, one end of the water pumping pipe is fixedly connected to a water outlet pipe, one end of the water outlet pipe is fixedly connected to a water box, and the bottom of the water box is fixedly connected to evenly distributed nozzles.

[0010] As a further description of the above technical solution:

[0011] The left and right sides of the upper part of the tower body are both fixedly connected with fans.

[0012] As a further description of the above technical solution:

[0013] The upper part of the water box is fixedly connected with a fixing rod, and one end of the fixing rod is fixedly connected to the top of the inner wall of the tower body.

[0014] As a further description of the above technical solution:

[0015] A cooling fin is arranged on the inner bottom side of the water collecting tank, and a drainage pipe is fixedly connected to the outer right side of the water collecting tank.

[0016] As a further description of the above technical solution:

[0017] A controller is arranged on the front side of the tower body and is fixedly connected to the inside of the tower body.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the water pump is started to make the water suction pipe suck the water in the water collecting tank, and the water enters the water box and is sprayed out through the nozzle to cool the heat medium by heat exchange. The sprayed water falls into the water collecting tank through the mesh plate, thereby realizing rapid heat exchange of the heat medium and collection of water, avoiding a large amount of water resource waste during cooling.

[0020] 2. In the utility model, a part of the heat medium entering the heat exchange tube is guided into the branch pipe, so that the heat medium enters the interior of the fin heat exchanger to avoid freezing of the spray water, thereby preventing ice from hanging in the cooling tower in winter and affecting the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of an anti-icing countercurrent closed cooling tower proposed by the utility model;

[0022] Figure 2 This is a left-side stereoscopic diagram of an anti-icing countercurrent closed cooling tower proposed by the utility model;

[0023] Figure 3 The utility model provides a cross-sectional view of an anti-icing countercurrent closed cooling tower.

[0024] Legend:

[0025] 1. Tower body; 2. Fin heat exchanger; 3. Water pump; 4. Suction pipe; 5. Water collecting box; 6. Fan; 7. Controller; 8. Drain pipe; 9. First solenoid valve; 10. Diverter pipe; 11. Second solenoid valve; 12. Water pipe; 13. Liquid inlet pipe; 14. Refrigeration plate; 15. Heat exchange tube; 16. Nozzle; 17. Water box; 18. Fixed rod; 19. Water outlet pipe; 20. Inner pipe; 21. Liquid outlet pipe; 22. Mesh plate. 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 without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-Figure 3 The utility model provides an embodiment: an anti-icing countercurrent closed cooling tower, comprising a tower body 1, a liquid inlet pipe 13 is fixedly connected to the front left side of the tower body 1, one end of the liquid inlet pipe 13 is fixedly connected to a heat exchange pipe 15, one end of the heat exchange pipe 15 is fixedly connected to a liquid outlet pipe 21, the outside of the liquid outlet pipe 21 and the liquid inlet pipe 13 are both provided with a first solenoid valve 9, the left side of the heat exchange pipe 15 is fixedly connected to a shunt pipe 10, the outside of the shunt pipe 10 is provided with a second solenoid valve 11, one end of the shunt pipe 10 is fixedly connected to a fin heat exchanger 2, the fin heat exchanger 2 is arranged at the bottom of the tower body 1, an inner tube 20 is arranged inside the fin heat exchanger 2, one end of the inner tube 20 is fixedly connected to a conveying assembly, and the heat exchange pipe 15 is fixedly connected to the inside of the tower body 1;

[0028] The conveying assembly includes a water pipe 12, which is fixedly connected to one end of the inner pipe 20. The outside of the water pipe 12 is fixedly connected to a water collecting tank 5. A mesh plate 22 is provided on the upper inner side of the water collecting tank 5. The water collecting tank 5 is provided at the bottom of the fin heat exchanger 2. A cooling plate 14 is provided on the inner bottom side of the water collecting tank 5. A drain pipe 8 is fixedly connected to the right outer side of the water collecting tank 5.

[0029] When winter comes and the external ambient temperature of the cooling tower is lower than the freezing temperature, the second solenoid valve 11 is started to allow a portion of the heat medium entering the heat exchange tube 15 to enter the inside of the diversion tube 10, so that the heat medium enters the inner tube 20 of the fin heat exchanger 2 through the diversion, and the heat is dissipated through the fins arranged outside the inner tube 20, so as to avoid the freezing of the spray water, thereby preventing ice from hanging in the cooling tower in winter and affecting the normal operation of the device; through the water supply pipe 12 connected to one end of the inner tube 20, the hot water inside is heated in the water collecting tank 5 for recovery and storage, further reducing the waste of water resources.

[0030] Reference Figure 1-Figure 3 A water pump 3 is fixedly connected to the right side of the outside of the water collecting tank 5, a water pump 4 is fixedly connected to the output end of the water pump 3, one end of the water pump 4 is fixedly connected to a water outlet pipe 19, one end of the water outlet pipe 19 is fixedly connected to a water box 17, the bottom of the water box 17 is fixedly connected to evenly distributed nozzles 16, the upper part of the water box 17 is fixedly connected to a fixing rod 18, one end of the fixing rod 18 is fixedly connected to the top of the inner wall of the tower body 1.

[0031] The water in the water collecting tank 5 is sucked by starting the water pump 3 to enter the interior of the water pumping pipe 4, and then sprayed out from the interior of the water box 17 through the nozzle 16, so as to perform heat exchange and cooling on the heat medium in the heat exchange tube 15. The sprayed water falls into the water collecting tank 5 through the mesh plate 22 to be collected and stored, and is cooled by the refrigeration plate 14 to meet the temperature required for cooling the heat medium, thereby achieving rapid heat exchange for the heat medium and collecting and recycling the water, thereby avoiding a large amount of water resource waste.

[0032] Reference Figure 1-Figure 3 The upper left and right sides of the tower body 1 are fixedly connected with fans 6; the front side of the tower body 1 is provided with a controller 7.

[0033] The inside of the cooling tower is ventilated and heat is dissipated through the fan 6; the controller 7 is electrically connected to the fan 6, the water pump 3, the first solenoid valve 9 and the second solenoid valve 11, so that it can control the operation and shutdown of the equipment.

[0034] Working principle: when the device is needed, the heat medium enters the heat exchange tube 15, the water pump 3 is started to drive the pumping pipe 4 to suck the water in the water collecting tank 5, so that the water enters the water box 17 and is sprayed out through the nozzle 16 to cool the heat medium for heat exchange, and the sprayed water falls into the water collecting tank 5 through the mesh plate 22, thereby realizing rapid heat exchange of the heat medium and water collection, and avoiding a large amount of water resource waste during cooling; when winter comes and the external ambient temperature of the cooling tower is lower than the freezing temperature, a part of the heat medium entering the heat exchange tube 15 is guided into the diversion pipe 10, so that the heat medium enters the interior of the fin heat exchanger 2, and the spray water is prevented from freezing, thereby avoiding ice hanging in the cooling tower in winter and affecting the normal operation of the device.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-icing countercurrent closed cooling tower, comprising a tower body (1), characterized in that: A liquid inlet pipe (13) is fixedly connected to the front left side of the tower body (1), one end of the liquid inlet pipe (13) is fixedly connected to a heat exchange pipe (15), one end of the heat exchange pipe (15) is fixedly connected to a liquid outlet pipe (21), the outsides of the liquid outlet pipe (21) and the liquid inlet pipe (13) are both provided with a first solenoid valve (9), a shunt pipe (10) is fixedly connected to the left side of the heat exchange pipe (15), the outside of the shunt pipe (10) is provided with a second solenoid valve (11), one end of the shunt pipe (10) is fixedly connected to a fin heat exchanger (2), the fin heat exchanger (2) is arranged at the bottom of the tower body (1), an inner pipe (20) is arranged inside the fin heat exchanger (2), and one end of the inner pipe (20) is fixedly connected to a conveying assembly.

2. The anti-icing countercurrent closed cooling tower according to claim 1, characterized in that: The conveying assembly comprises a water pipe (12), the water pipe (12) being fixedly connected to one end of an inner pipe (20), the outside of the water pipe (12) being fixedly connected to a water collecting box (5), a mesh plate (22) being arranged on the inner upper side of the water collecting box (5), and the water collecting box (5) being arranged at the bottom of the fin heat exchanger (2).

3. The anti-icing countercurrent closed cooling tower according to claim 2, characterized in that: A water pump (3) is fixedly connected to the right side of the outside of the water collecting tank (5); the output end of the water pump (3) is fixedly connected to a water pumping pipe (4); one end of the water pumping pipe (4) is fixedly connected to a water outlet pipe (19); one end of the water outlet pipe (19) is fixedly connected to a water box (17); and the bottom of the water box (17) is fixedly connected to evenly distributed nozzles (16).

4. The anti-icing countercurrent closed cooling tower according to claim 1, characterized in that: Fans (6) are fixedly connected to both left and right sides of the upper part of the tower body (1).

5. The anti-icing countercurrent closed cooling tower according to claim 3, characterized in that: A fixing rod (18) is fixedly connected to the upper portion of the water box (17), and one end of the fixing rod (18) is fixedly connected to the top of the inner wall of the tower body (1).

6. The anti-icing countercurrent closed cooling tower according to claim 2, characterized in that: A cooling fin (14) is provided on the inner bottom side of the water collecting box (5), and a drainage pipe (8) is fixedly connected to the outer right side of the water collecting box (5).

7. The anti-icing countercurrent closed cooling tower according to claim 1, characterized in that: A controller (7) is arranged on the front side of the tower body (1).

8. The anti-icing countercurrent closed cooling tower according to claim 1, characterized in that: The heat exchange tube (15) is fixedly connected inside the tower body (1).

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