Industrial circulating water cooling system

Abstract

The utility model discloses an industrial circulating water cooling system which comprises a dry type cooling tower, a wet type cooling tower and a cold water pool, a cooling pipe of the dry type cooling tower is communicated with a water inlet header pipe, a cooling pipe of the wet type cooling tower is communicated with the water inlet header pipe, the output end of the cooling pipe of the wet type cooling tower is communicated with a water return header pipe, and the output end of the water return header pipe is communicated with the cold water pool. A cooling coil pipe is laid in the cold water pool, and the cooling coil pipe is communicated with the water return main pipe to form circulation; the circulating water cooling system has the beneficial effects that circulating water can be cooled in time in different temperature environments through mutual switching operation among the dry cooling tower, the wet cooling tower and the cold water pool, meanwhile, the water consumption is also reduced, and the waste of water resources is avoided.

Description

Technical field:

[0001] The utility model belongs to the field of industrial circulating water, in particular to an industrial circulating water cooling system. Background technology:

[0002] A large amount of heat energy is generated during the production process in industries such as chemical, metallurgy, and coking. The role of industrial circulating water is to carry away some of this heat energy and release it through the cooling system.

[0003] In the prior art, wet circulating water cooling systems are commonly used to cool industrial circulating water. Open or closed wet cooling towers are used, and the main method is to discharge heat energy out of the tower by evaporating water to cool the circulating water. However, this method has the disadvantage of high water consumption, which will also limit its application in water-scarce areas. Another cooling method for industrial circulating water is the dry cooling system, which uses air cooling. The main equipment is an air cooling tower (or dry cooling tower). The dry circulating water cooling system sends circulating water into the air cooling tower, and the circulating water in the pipe exchanges heat with the cold air outside the pipe through the radiator, thereby reducing the circulating water temperature. However, the disadvantage is that it is affected by the ambient temperature outside the tower. When the ambient temperature is high in summer, the outlet temperature of the circulating water is still high, and the cooling effect is poor, which cannot meet the requirements of industrial production. Utility model content:

[0004] The purpose of this utility model is to provide an industrial circulating water cooling system, and overcome the deficiencies of the above-mentioned prior art, which effectively solves the shortcomings of wet cooling systems and dry cooling systems, and provides a system that can consume less water and save water resources, while keeping the circulating water temperature low in time and meeting the use requirements of industrial circulating water.

[0005] The present invention relates to an industrial circulating water cooling system, comprising a dry cooling tower, a wet cooling tower and a cooling water tank. The cooling pipe of the dry cooling tower is connected to a water inlet main pipe, the cooling pipe of the wet cooling tower is connected to the water inlet main pipe, the output end of the cooling pipe of the wet cooling tower is connected to a return water main pipe, a cooling coil is laid in the cooling water tank, and the cooling coil is connected to the return water main pipe to form a circulation.

[0006] Furthermore, a circulating water pipe is connected to the cooling water pool, and the circulating water pipe is connected to the water reservoir of the wet cooling tower to form a circulation.

[0007] Furthermore, it also includes a dosing station, and the dosing pipe of the dosing station is connected to the cooling water pool.

[0008] The beneficial effects of the utility model are as follows: by switching between the dry cooling tower, the wet cooling tower and the cooling water pool, the circulating water can be cooled in time in different temperature environments, while also reducing water consumption and avoiding waste of water resources. Description of the drawings:

[0009] Figure 1 This is a schematic diagram of the overall system of the present utility model;

[0010] In the figure, 1 is a dry cooling tower, 2 is a wet cooling tower, 3 is a cooling water tank, 4 is a cooling pipe of a dry cooling tower, 5 is a water inlet main pipe, 6 is a cooling pipe of a wet cooling tower, 7 is a return water main pipe, 8 is a cooling coil, 9 is a circulating water pipe, and 10 is a dosing station. Specific implementation method:

[0011] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described with reference to the accompanying drawings:

[0012] like Figure 1 As shown, an industrial circulating water cooling system includes a dry cooling tower 1, a wet cooling tower 2 and a cooling water tank 3. The cooling pipe 4 of the dry cooling tower 1 is connected to the water inlet main pipe 5, the cooling pipe 6 of the wet cooling tower 2 is connected to the water inlet main pipe 5, the output end of the cooling pipe 6 of the wet cooling tower 2 is connected to the return water main pipe 7, a cooling coil 8 is laid in the cooling water tank 3, the cooling coil 8 is connected to the return water main pipe 7 and forms a circulation, a circulating water pipe 9 is connected to the cooling water tank 3, the circulating water pipe 9 is connected to the water reservoir of the wet cooling tower 2 and forms a circulation, and also includes a dosing station 10, the dosing pipe of the dosing station 10 is connected to the cooling water tank 3.

[0013] Specifically, by switching between the dry cooling tower 1, the wet cooling tower 2 and the cooling water pool 3, the circulating water can be cooled in a timely manner in different environments, while also reducing water consumption and saving water resources.

[0014] In actual use, the industrial circulating water is transported to the water inlet main pipe 5. In the first case, when the outside temperature is relatively low, the cooling pipe 4 valve of the dry cooling tower 1 is opened, and the circulating water in the water inlet main pipe 5 is drained into the cooling pipe 4 of the dry cooling tower 1. At this time, the dry cooling tower 1 performs the first stage of natural air cooling on the high-temperature circulating water. The initially cooled circulating water returns to the water inlet main pipe 5 again, and the cooling pipe 6 of the wet cooling tower 2 introduces the circulating water. At this time, the wet cooling tower 2 implements dry operation and uses the external cold air to perform the second stage of cooling on the circulating water in the cooling pipe 6 of the wet cooling tower 2. The circulating water after secondary cooling enters the return water main pipe 7. At this time, the valve corresponding to the cooling coil 8 is opened and the circulating water is introduced. The low-temperature water stored in the cold water pool 3 performs the third stage of final cooling on the circulating water. The circulating water that reaches the specified cooling temperature flows back to the return water main pipe 7 again and flows back to the production system for use.

[0015] In the second case, when the outside temperature is high, the valve corresponding to the cooling pipe 4 of the dry cooling tower 1 is closed. At this time, the corresponding valve on the water inlet main 5 is opened, and the industrial circulating water is directly transported to the cooling pipe 6 of the wet cooling tower 2. At this time, the spray system of the wet cooling tower 2 starts to operate and uses water cooling to quickly cool the circulating water. The cooled circulating water flows back to the return water main 7 and flows back to the production system for use. In this process, the valve corresponding to the return water main 7 is opened, and the valve corresponding to the cooling coil 8 is closed. At this time, the valve corresponding to the circulating water pipe 9 is opened, and under the action of the water pump, the stored cold water in the cooling water pool 3 is circulated to the water reservoir of the wet cooling tower 2, thereby further reducing the original cooling water temperature of the wet cooling tower 2, so that the cooling efficiency of the wet cooling tower 2 for the circulating water is improved and the loss of high-temperature water vapor is reduced; the dosing station 10 regularly injects a well-proportioned agent into the cooling water pool 3 to improve the pH value of the cooling water and prevent the cooling water from corroding the pipeline or causing scaling and clogging.

[0016] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An industrial circulating water cooling system, characterized by: The invention comprises a dry cooling tower (1), a wet cooling tower (2) and a cooling water pool (3); the cooling pipe (4) of the dry cooling tower (1) is connected to a water inlet main pipe (5); the cooling pipe (6) of the wet cooling tower (2) is connected to the water inlet main pipe (5); the output end of the cooling pipe (6) of the wet cooling tower (2) is connected to a return water main pipe (7); a cooling coil (8) is laid in the cooling water pool (3); the cooling coil (8) is connected to the return water main pipe (7) to form a circulation.

2. An industrial circulating water cooling system according to claim 1, characterized in that: A circulating water pipe (9) is connected to the cooling water pool (3), and the circulating water pipe (9) is connected to the water reservoir of the wet cooling tower (2) to form a circulation.

3. The industrial circulating water cooling system according to claim 1, characterized in that: It also includes a dosing station (10), and the dosing pipe of the dosing station (10) is connected to the cooling water pool (3).

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