A cooling tower system with antifreeze function

Abstract

The utility model discloses a cooling tower system with antifreeze function, including an inlet pipe and a return pipe, the inlet pipe and the return pipe connect the equipment with the coil in the cooling tower, the height of the cooling tower is greater than the height of the equipment; a four-way and a first electric valve are sequentially installed on the inlet pipe, a three-way and a second electric valve are installed on the return pipe, a connecting pipe is installed on the inner sides of the four-way and the three-way, a third electric valve is installed at the connection between the connecting pipe and the four-way, a fourth electric valve is installed at the connection between the connecting pipe and the three-way, and a drain pipe is connected below the connecting pipe; the side port of the four-way away from the three-way is connected to the air inlet pipe. The utility model can solve the problems of high energy consumption of electric heating, large pollution of adding antifreeze liquid and serious waste of overall emptying, can meet the cooling demand of equipment in the production process, and has the characteristics of flexible adjustment and recovery, can save resources, and reduce energy consumption and pollution.

Description

Technical Field

[0001] The utility model relates to a cooling tower system with an antifreeze function, belonging to the technical field of temperature reduction and heat exchange equipment. Background Art

[0002] Cooling towers are commonly used in industry for cooling and heat exchange, and are widely used in industrial production and HVAC equipment. The working principle of a cooling tower is to pump the high-temperature water generated by the equipment into the coil through a water pump, and then exchange heat with the air outside the cooling tower in the coil to reduce the temperature of the water, which then flows back to the equipment through the pipe, and the cycle repeats to achieve cooling of the equipment.

[0003] In winter, the outdoor temperature is very low and the equipment has little demand for cooling capacity, so continuous heat exchange is not even required. At this time, the cooling water flow is small, the cooling water temperature out of the equipment is also low, and the outside temperature is low. When the outside temperature is below -3°C, the coils are prone to ice and cracking. At present, common antifreeze solutions include electric heating, adding antifreeze such as ethylene glycol to the cooling water, and overall emptying of the cooling tower system. However, electric heating has the problem of high energy consumption, adding antifreeze has the problem of high pollution, and overall emptying has the disadvantage of serious waste.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a cooling tower system with an antifreeze function in view of the above shortcomings, which can solve the problems of high energy consumption of electric heating, large pollution caused by adding antifreeze liquid and serious waste of overall emptying, and can not only meet the cooling demand of equipment in the production process, but also has the characteristics of flexible adjustment and recovery, can save resources, and reduce energy consumption and pollution.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A cooling tower system with an antifreeze function comprises an inlet pipe and a return pipe, the inlet pipe and the return pipe connect the equipment with the coil in the cooling tower, the height of the cooling tower is greater than the height of the equipment; a four-way valve and a first electric valve are installed in sequence on the inlet pipe, and a three-way valve and a second electric valve are installed on the return pipe; a connecting pipe is installed on the inner sides of the four-way valve and the three-way valve, a third electric valve is installed at the connection between the connecting pipe and the four-way valve, a fourth electric valve is installed at the connection between the connecting pipe and the three-way valve, and a drain pipe is connected to the lower middle part of the connecting pipe; a side port of the four-way valve away from the three-way valve is connected to the outlet of the air inlet pipe.

[0008] An optimization solution, the bottom end of the water inlet pipe is connected to the water outlet of the equipment, the top end of the water inlet pipe is connected to the top end of the coil; the top end of the return pipe is connected to the bottom end of the coil, and the bottom end of the return pipe is connected to the water inlet of the equipment.

[0009] Furthermore, the first electric valve is located below the four-way valve.

[0010] Furthermore, the second electric valve is located below the three-way valve, and the four-way valve and the three-way valve are located at the same level.

[0011] Furthermore, the drain pipe is arranged in a vertical direction, and the bottom end of the drain pipe extends into the water tank.

[0012] Furthermore, the inlet of the air intake pipe is connected to the blower, wherein a fifth electric valve is installed on the air intake pipe.

[0013] Furthermore, a drain valve is installed at the top end of the coil.

[0014] Furthermore, the connecting pipe is arranged along the horizontal direction.

[0015] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0016] When the production environment temperature is low and there is no need to cool the equipment through a cooling tower, the cooling water in the coil will automatically drain into the water tank under the action of gravity. The drain valve at the highest point of the coil is opened to connect to the atmosphere to ensure that the cooling water in the coil can be completely drained. Then the pipe is purged through a blower to ensure that there is no water in the pipe and it is dry to prevent corrosion.

[0017] The utility model adopts a coil emptying solution, which solves the problems of high energy consumption of electric heating, great pollution caused by adding antifreeze liquid and serious waste of overall emptying in the prior art. It can not only meet the cooling demand of equipment in the production process, but also has the characteristics of flexible adjustment and recovery, can save resources, and reduce energy consumption and pollution.

[0018] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 yes Figure 1 The structural diagram of the M in the middle;

[0021] Figure 3 yes Figure 1 Schematic diagram of the structure at N.

[0022] In the figure, 1-water inlet pipeline, 2-water return pipeline, 3-equipment, 4-cooling tower, 5-coil, 6-drain valve, 7-four-way valve, 8-three-way valve, 9-first electric valve, 10-second electric valve, 11-connecting pipe, 12-third electric valve, 13-fourth electric valve, 14-drain pipe, 15-water tank, 16-inlet pipe, 17-blower, 18-fifth electric valve. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0024] like Figure 1-Figure 3 As shown together, the utility model provides a cooling tower system with an antifreeze function, including an inlet pipe 1 and a return pipe 2, the inlet pipe 1 and the return pipe 2 connect the equipment 3 with the coil 5 in the cooling tower 4, and the height of the cooling tower 4 is greater than the height of the equipment 3.

[0025] The bottom end of the water inlet pipe 1 is connected to the water outlet of the device 3, and the top end of the water inlet pipe 1 is connected to the top end of the coil 5; the top end of the return pipe 2 is connected to the bottom end of the coil 5, and the bottom end of the return pipe 2 is connected to the water inlet of the device 3. A circulating pump is installed on the water inlet pipe 1 to pump and circulate the cooling water in the pipe.

[0026] A four-way valve 7 and a first electric valve 9 are sequentially installed on the water inlet pipeline 1 , and the first electric valve 9 is located below the four-way valve 7 .

[0027] A tee 8 and a second electric valve 10 are installed on the return pipe 2. The second electric valve 10 is located below the tee 8. The cross 7 and the tee 8 are located at the same level.

[0028] A horizontally arranged connecting pipe 11 is installed on the inner sides of the four-way connection 7 and the three-way connection 8 . A third electric valve 12 is installed at the connection between the connecting pipe 11 and the four-way connection 7 . A fourth electric valve 13 is installed at the connection between the connecting pipe 11 and the three-way connection 8 .

[0029] A drain pipe 14 is connected to the lower middle of the connecting pipe 11. The drain pipe 14 is arranged in a vertical direction, and the bottom end of the drain pipe 14 extends into a water tank 15. The water tank 15 is mainly used to receive the circulating cooling water discharged from the coil 5. The cooling water in the water tank 15 can be used for other water or reused.

[0030] The side port of the four-way port 7 away from the three-way port 8 is connected to the outlet of the air intake pipe 16 , and the inlet of the air intake pipe 16 is connected to the blower 17 , wherein a fifth electric valve 18 is installed on the air intake pipe 16 .

[0031] A drain valve 6 is installed at the top of the coil 5. The drain valve 6 can connect the highest point of the coil 5 to the atmosphere, thereby ensuring that the water in the coil 5 can be drained cleanly.

[0032] The specific working principle of this utility model:

[0033] When the production environment temperature is high and the equipment 3 needs to be cooled by the cooling tower 4: the first electric valve 9 and the second electric valve 10 are opened, the third electric valve 12, the fourth electric valve 13 and the fifth electric valve 18 are all closed, and the cooling water in the equipment 3 is sent to the cooling tower 4 through the water inlet pipe 1 for cooling by the circulating pump, and the cooled cooling water flows back to the equipment 3 through the return pipe 2. In order to make the cooling water evenly distribute on the coil 5 of the cooling tower 4 and avoid air blockage affecting the cooling effect and equipment damage, the air in the pipeline can be discharged through the drain valve 6 at the top of the coil 5, so that the cooling tower 4 quickly enters a normal circulation cooling state.

[0034] When the production environment temperature is low and there is no need to cool the equipment 3 through the cooling tower 4: first, the first electric valve 9, the second electric valve 10 are opened, and the fifth electric valve 18 are closed, the third electric valve 12 and the fourth electric valve 13 are opened, and the cooling water in the coil 5 will automatically drain into the water tank 15 under the action of gravity, and the drain valve 6 at the highest point of the coil 5 is opened to connect to the atmosphere, so as to ensure that the cooling water in the coil 5 can be drained; then the third electric valve 12 is closed, the fifth electric valve 18 is opened, the drain valve 6 is closed, and the blower 17 performs a pipeline purge operation to blow the remaining cooling water in the coil 5 into the water tank 15 to ensure that the pipeline is free of water and dry to prevent corrosion.

[0035] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A cooling tower system with antifreeze function, characterized in that: The invention comprises a water inlet pipeline (1) and a water return pipeline (2), wherein the water inlet pipeline (1) and the water return pipeline (2) connect the equipment (3) with the coil (5) in the cooling tower (4), and the height of the cooling tower (4) is greater than the height of the equipment (3); a four-way valve (7) and a first electric valve (9) are sequentially installed on the water inlet pipeline (1), and a three-way valve (8) and a second electric valve (10) are installed on the water return pipeline (2); a connecting pipe (11) is installed on the inner sides of the four-way valve (7) and the three-way valve (8), a third electric valve (12) is installed at the connection between the connecting pipe (11) and the four-way valve (7), a fourth electric valve (13) is installed at the connection between the connecting pipe (11) and the three-way valve (8), and a drainage pipe (14) is connected to the lower middle part of the connecting pipe (11); a side port of the four-way valve (7) away from the three-way valve (8) is connected to the outlet of the air inlet pipe (16).

2. A cooling tower system with antifreeze function as claimed in claim 1, characterized in that: The bottom end of the water inlet pipeline (1) is connected to the water outlet of the device (3), and the top end of the water inlet pipeline (1) is connected to the top end of the coil (5); the top end of the water return pipeline (2) is connected to the bottom end of the coil (5), and the bottom end of the water return pipeline (2) is connected to the water inlet of the device (3).

3. A cooling tower system with antifreeze function as claimed in claim 1, characterized in that: The first electric valve (9) is located below the four-way valve (7).

4. A cooling tower system with antifreeze function as claimed in claim 3, characterized in that: The second electric valve (10) is located below the three-way valve (8), and the four-way valve (7) and the three-way valve (8) are located at the same level.

5. A cooling tower system with antifreeze function as claimed in claim 1, characterized in that: The drainage pipe (14) is arranged in a vertical direction, and the bottom end of the drainage pipe (14) extends into the water tank (15).

6. A cooling tower system with antifreeze function as claimed in claim 1, characterized in that: The inlet of the air intake pipe (16) is connected to the blower (17), wherein a fifth electric valve (18) is installed on the air intake pipe (16).

7. A cooling tower system with antifreeze function as claimed in claim 1, characterized in that: A drain valve (6) is installed at the top end of the coil (5).

8. A cooling tower system with antifreeze function as claimed in claim 1, characterized in that: The connecting pipe (11) is arranged in the horizontal direction.

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