Dry and wet combined cold closed cooling tower

Abstract

The utility model relates to the technical field of cooling towers, and discloses a dry and wet composite cold closed cooling tower which comprises a cooling tower body, supporting plates which are evenly distributed are fixedly connected in the cooling tower body, a condenser is arranged on the sides, close to each other, of the supporting plates, a cooling coil pipe is arranged in the condenser, and the cooling coil pipe is connected with the cooling tower body. A water inlet is fixedly connected to the upper portion of the left side of the cooling coil, a water outlet is fixedly connected to the lower portion of the left side of the cooling coil, a water collecting tank is fixedly connected to the lower side of the interior of the cooling tower body, a water pumping pipe is fixedly connected to the right side of the water collecting tank, and a water pump is fixedly connected to the rear end of the water pumping pipe. According to the closed cooling tower, the problem of poor heat exchange efficiency of a cooling coil of an existing closed cooling tower is solved, so that the cooling efficiency of the cooling tower is improved, the size of the cooling tower is reduced, the energy consumption is reduced, the water collecting tank is heated, the interior of the water collecting tank is prevented from being iced, and a good anti-freezing effect is achieved.

Description

Technical Field

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

[0002] A cooling tower is one of the equipment that must be used in modern industrial production, and a dry-wet combined closed cooling tower is a kind of cooling tower. Inside it, there are successively arranged a fan, finned tube bundles, a water collector, a spraying system, evaporation tube bundles, an air inlet grille and a water collecting tank from top to bottom. The fan drives air to blow from bottom to top to realize the dry cooling of the finned tube bundles and evaporation tube bundles, and the spraying system sprays water downward to realize the wet cooling of the evaporation tube bundles.

[0003] In the prior art, a fixing frame can be fixed to the cooling tower body through a mounting plate and a first bolt, and a filter plate can be fixed between the fixing frame and an extrusion plate through an extrusion frame, so as to filter the gas entering the inside of the cooling tower body, avoid dust and impurities from entering the inside of the cooling tower body during shutdown, and achieve the purpose of preventing water pollution.

[0004] However, when the above device is in use, water deposits at the bottom of the cooling tower after heat exchange, and the temperature of the upper and lower layers of the water body is inconsistent, thus affecting the natural heat dissipation of the water body. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the defect that when in use in the prior art, water deposits at the bottom of the cooling tower after heat exchange and the temperature of the upper and lower layers of the water body is inconsistent, and to propose a dry-wet composite closed cooling tower.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A dry-wet composite closed cooling tower, including a cooling tower body, evenly distributed support plates are fixedly connected inside the cooling tower body, a condenser is arranged on the relatively close side of the support plates, a cooling coil is arranged inside the condenser, a water inlet is fixedly connected to the upper left side of the cooling coil, a water outlet is fixedly connected to the lower left side of the cooling coil, a water collecting tank is fixedly connected to the lower side inside the cooling tower body, a water extraction pipe is fixedly connected to the right side of the water collecting tank, a water extraction pump is fixedly connected to the rear end of the water extraction pipe, an output end of the water extraction pump is fixedly connected to a communicating pipe, uniformly distributed nozzles are arranged on the lower side of the communicating pipe, and a heat dissipation component is arranged on the upper side inside the cooling tower body.

[0007] As a further description of the above technical solution:

[0008] The heat dissipation component includes a water eliminator, which is arranged on the upper inner side of the cooling tower body. Exhaust ports are provided on both sides of the upper part of the cooling tower body. Ventilation pipes are fixedly connected to both sides of the upper part of the cooling tower body. A fan is arranged inside the ventilation pipe, and a filter screen is arranged above the fan. A ventilation plate is arranged on the front side of the cooling tower body.

[0009] As a further description of the above technical solution:

[0010] A fixing plate is fixedly connected to the left side of the cooling tower body. A suction pump is fixedly connected to the rear side of the upper part of the fixing plate. The input end of the suction pump is fixedly connected to a suction pipe, and the output end of the suction pump is fixedly connected to a heating component. The heating component is arranged on the lower inner side of the water collection tank, and a heat conduction plate is fixedly connected inside the water collection tank.

[0011] As a further description of the above technical solution:

[0012] The heating component includes an air delivery pipe, which is fixedly connected to the output end of the suction pump. The front end of the air delivery pipe is fixedly connected to a heating box. Heating pipes are arranged inside the heating box, and a bent pipe is fixedly connected to the front side of the heating box.

[0013] As a further description of the above technical solution:

[0014] A bearing plate is fixedly connected to the right side of the cooling tower body, and a water suction pump is fixedly connected to the upper part of the bearing plate.

[0015] As a further description of the above technical solution:

[0016] The heating box is fixedly connected to the upper side of the fixing plate.

[0017] As a further description of the above technical solution:

[0018] The connecting pipe is fixedly connected to the left inner side of the cooling tower body.

[0019] As a further description of the above technical solution:

[0020] The bent pipe is fixedly connected to the front side of the cooling tower body.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, the water extraction pipe is driven to extract water by starting the water pump, and the water flows into the interior of the nozzle from the interior of the water extraction pipe and is ejected. When the water contacts the condenser, part of the water becomes water vapor. When the water vapor contacts the water separator, it becomes water droplets, which fall back into the interior of the water collection tank under the action of gravity. At the same time, the fan is started to extract the hot air inside the cooling tower body upward, and the hot air is discharged from the exhaust port and the interior of the ventilation pipe, thus overcoming the problem of poor heat exchange efficiency of the cooling coil in the existing closed cooling tower, improving the cooling efficiency of the cooling tower, reducing the volume of the cooling tower, and reducing energy consumption.

[0023] 2. In the present utility model, the air extraction pipe is driven to extract gas by starting the air extraction pump, and the gas is transported from the interior of the air extraction pipe to the interior of the heating box. The heating pipe performs heat treatment on the gas, and the hot air enters the interior of the elbow pipe from the interior of the heating box. The provided heat conducting plate conducts the heat inside the elbow pipe to the interior of the water collection tank, realizing the heating of the water collection tank and avoiding internal icing, with a good anti-freezing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the front view of a dry-wet composite cold closed cooling tower proposed by the present utility model;

[0025] Figure 2 It is the rear view of a dry-wet composite cold closed cooling tower proposed by the present utility model;

[0026] Figure 3 It is the cross-sectional view of the cooling tower body of a dry-wet composite cold closed cooling tower proposed by the present utility model;

[0027] Figure 4 It is the cross-sectional view of the ventilation pipe of a dry-wet composite cold closed cooling tower proposed by the present utility model;

[0028] Figure 5 It is the cross-sectional view of the heating box of a dry-wet composite cold closed cooling tower proposed by the present utility model.

[0029] LEGEND DESCRIPTION:

[0030] 1. Cooling tower body; 2. Support plate; 3. Condenser; 4. Cooling coil; 5. Water inlet; 6. Water outlet; 7. Water collection tank; 8. Water extraction pipe; 9. Water pump; 10. Connecting pipe; 11. Nozzle; 12. Water separator; 13. Bearing plate; 14. Air extraction pipe; 15. Exhaust port; 16. Ventilation pipe; 17. Fan; 18. Filter screen; 19. Ventilation plate; 20. Fixed plate; 21. Air extraction pump; 22. Gas transmission pipe; 23. Heating box; 24. Heating pipe; 25. Elbow pipe; 26. Heat conducting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] Referring to Figure 1 , Figure 3 , Figure 4 , an embodiment provided by the present utility model: a dry-wet composite closed cooling tower, including a cooling tower body 1, a support plate 2 evenly distributed and fixedly connected inside the cooling tower body 1, a condenser 3 is arranged on the closer side of the support plate 2, a cooling coil 4 is arranged inside the condenser 3, a water inlet 5 is fixedly connected to the upper left side of the cooling coil 4, a water outlet 6 is fixedly connected to the lower left side of the cooling coil 4, a water collecting tank 7 is fixedly connected to the lower side inside the cooling tower body 1, a water extraction pipe 8 is fixedly connected to the right side of the water collecting tank 7, a water extraction pump 9 is fixedly connected to the rear end of the water extraction pipe 8, an output end of the water extraction pump 9 is fixedly connected to a communication pipe 10, a spray head 11 evenly distributed is arranged below the communication pipe 10, and a heat dissipation component is arranged on the upper side inside the cooling tower body 1; the heat dissipation component includes a water eliminator 12, the water eliminator 12 is arranged on the upper side inside the cooling tower body 1, exhaust ports 15 are opened on both sides of the upper part of the cooling tower body 1, ventilation pipes 16 are fixedly connected to both sides of the upper part of the cooling tower body 1, a fan 17 is arranged inside the ventilation pipe 16, a filter screen 18 is arranged above the fan 17, and a breathable plate 19 is arranged on the front side of the cooling tower body 1.

[0033] Air enters the condenser 3 from inside the breathable plate 19, and the condenser 3 realizes heat exchange to ensure the cooling effect. By starting the water extraction pump 9 to drive the water extraction pipe 8 to extract water, the water flow passes through the water extraction pump 9 from inside the water extraction pipe 8 and enters the communication pipe 10 and the spray head 11, and then sprays out from inside the spray head 11. When the water flow contacts the condenser 3, part of the water becomes water vapor. By arranging the water eliminator 12, the water vapor contacts the water eliminator 12 and becomes water droplets, and then falls back into the water collecting tank 7 under the action of gravity. At the same time, the fan 17 is started to extract the hot air inside the cooling tower body 1 upward, and the hot air enters the ventilation pipe 16 from inside the exhaust port 15 and is discharged. The arranged filter screen 18 filters the gas, which plays a role in overcoming the problem of poor heat exchange efficiency of the cooling coil 4 in the existing closed cooling tower.

[0034] Referring to Figure 2 , Figure 3 , Figure 5, a fixing plate 20 is fixedly connected to the left side of the cooling tower body 1. A suction pump 21 is fixedly connected to the upper rear side of the fixing plate 20. A suction pipe 14 is fixedly connected to the input end of the suction pump 21. An output end of the suction pump 21 is fixedly connected to a heating assembly. The heating assembly is arranged on the lower side inside the water collecting tank 7. A heat conducting plate 26 is fixedly connected inside the water collecting tank 7; The heating assembly includes an air delivery pipe 22. The air delivery pipe 22 is fixedly connected to the output end of the suction pump 21. The front end of the air delivery pipe 22 is fixedly connected to a heating box 23. A heating pipe 24 is arranged inside the heating box 23. A bent pipe 25 is fixedly connected to the front side of the heating box 23.

[0035] By starting the suction pump 21 to drive the suction pipe 14 to extract, the gas is conveyed from the inside of the suction pipe 14 to the inside of the air delivery pipe 22 and the heating box 23. The arranged heating pipe 24 performs heat treatment on the gas. The hot air enters the inside of the bent pipe 25 from the inside of the heating box 23. The arranged heat conducting plate 26 conducts the heat inside the bent pipe 25 to the inside of the water collecting tank 7, playing a role in heating the water collecting tank 7 and preventing internal icing.

[0036] Refer to Figure 1 , Figure 2 , Figure 3 , a bearing plate 13 is fixedly connected to the right side of the cooling tower body 1. A water suction pump 9 is fixedly connected to the upper part of the bearing plate 13; The heating box 23 is fixedly connected to the upper side of the fixing plate 20; A connecting pipe 10 is fixedly connected to the left side inside the cooling tower body 1; The bent pipe 25 is fixedly connected to the front side of the cooling tower body 1.

[0037] By fixedly connecting a bearing plate 13 to the right side of the cooling tower body 1 and fixedly connecting a water suction pump 9 to the upper part of the bearing plate 13, it plays a role in fixedly supporting the water suction pump 9; By fixedly connecting the heating box 23 to the upper side of the fixing plate 20, it plays a role in fixedly supporting the heating box 23; By fixedly connecting the connecting pipe 10 to the left side inside the cooling tower body 1, it plays a role in supporting the connecting pipe 10; By fixedly connecting the bent pipe 25 to the front side of the cooling tower body 1, it plays a role in discharging the gas.

[0038] Working principle: When using the device, the vacuum pump 21 is started, and the vacuum pump 21 starts to drive the vacuum pipe 14 to extract, and the gas is transported from the inside of the vacuum pipe 14 to the inside of the gas pipe 22, and enters the inside of the heating box 23 from the inside of the gas pipe 22. The heating pipe 24 is provided to heat the gas, and the hot air enters the inside of the curved pipe 25 from the inside of the heating box 23. The heat conducting plate 26 is provided to conduct the heat inside the curved pipe 25 to the inside of the water collecting box 7, and the water flow inside the water collecting box 7 is heated, so that the water collecting box 7 is heated to avoid internal freezing, and has a good antifreeze effect; the air enters the condenser 3 from the air permeable plate 19, and the heat exchange is realized through the condenser 3 to ensure the cooling effect, and the water pump 9 is started, and the water pump 9 starts to drive the vacuum pipe 8 to extract, and the vacuum pipe 8 enters the water flow inside the water collecting box 7 The water flows from the inside of the water extraction pipe 8 through the water extraction pump 9 into the inside of the connecting pipe 10, enters the inside of the nozzle 11 from the inside of the connecting pipe 10, and is sprayed out from the inside of the nozzle 11 to cool the condenser 3. When the water flows in contact with the condenser 3, part of the water becomes water vapor. By setting the dehydrator 12, the water vapor contacts the dehydrator 12 and becomes water droplets, which fall into the water collecting box 7 again under the action of gravity. At the same time, the fan 17 is started. The fan 17 is started to extract the hot air inside the cooling tower body 1 upward, and the hot air enters the inside of the ventilation duct 16 from the inside of the exhaust port 15. The filter 18 is set to filter the gas, and the hot air is discharged from the inside of the ventilation duct 16, thereby overcoming the problem of poor heat exchange efficiency of the cooling coil 4 of the existing closed cooling tower, thereby improving the cooling efficiency of the cooling tower, reducing the volume of the cooling tower, and reducing energy consumption.

[0039] 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. A dry-wet composite closed cooling tower, comprising a cooling tower body (1), characterized in that: The interior of the cooling tower body (1) is fixedly connected to a uniformly distributed support plate (2), a condenser (3) is arranged on a side close to the support plate (2), a cooling coil (4) is arranged inside the condenser (3), a water inlet (5) is fixedly connected to the upper left side of the cooling coil (4), a water outlet (6) is fixedly connected to the lower left side of the cooling coil (4), a water collecting tank (7) is fixedly connected to the lower side of the interior of the cooling tower body (1), a water pump (8) is fixedly connected to the right side of the water collecting tank (7), a water pump (9) is fixedly connected to the rear end of the water pump (8), a connecting pipe (10) is fixedly connected to the output end of the water pump (9), a uniformly distributed nozzle (11) is arranged on the lower side of the connecting pipe (10), and a heat dissipation component is arranged on the upper side of the interior of the cooling tower body (1); A fixing plate (20) is fixedly connected to the left side of the cooling tower body (1), an air extraction pump (21) is fixedly connected to the upper rear side of the fixing plate (20), an air extraction pipe (14) is fixedly connected to the input end of the air extraction pump (21), a heating component is fixedly connected to the output end of the air extraction pump (21), the heating component is arranged on the lower side of the interior of the water collecting tank (7), and a heat conducting plate (26) is fixedly connected to the interior of the water collecting tank (7); The heating assembly comprises an air delivery pipe (22), the air delivery pipe (22) is fixedly connected to the output end of the air extraction pump (21), the front end of the air delivery pipe (22) is fixedly connected to a heating box (23), a heating pipe (24) is arranged inside the heating box (23), and a bent pipe (25) is fixedly connected to the front side of the heating box (23).

2. A dry-wet composite closed cooling tower according to claim 1, characterized in that: The heat dissipation component comprises a dehumidifier (12), the dehumidifier (12) is arranged on the upper side of the interior of a cooling tower body (1), exhaust ports (15) are provided on both sides of the upper part of the cooling tower body (1), ventilation ducts (16) are fixedly connected to both sides of the upper part of the cooling tower body (1), a fan (17) is provided inside the ventilation duct (16), a filter screen (18) is provided on the upper side of the fan (17), and a ventilation plate (19) is provided on the front side of the cooling tower body (1).

3. A dry-wet composite closed cooling tower according to claim 1, characterized in that: A bearing plate (13) is fixedly connected to the right side of the cooling tower body (1), and a water pump (9) is fixedly connected to the upper part of the bearing plate (13).

4. A dry-wet composite closed cooling tower according to claim 1, characterized in that: The heating box (23) is fixedly connected to the upper side of the fixing plate (20).

5. A dry-wet composite closed cooling tower according to claim 1, characterized in that: The connecting pipe (10) is fixedly connected to the left side inside the cooling tower body (1).

6. A dry-wet composite closed cooling tower according to claim 1, characterized in that: The bent pipe (25) is fixedly connected to the front side of the cooling tower body (1).

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