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Energy-saving recycling combination system for industrial circulating cooling water

A technology of circulating cooling water and a combined system, which is applied in cooling fluid circulation devices, applications, household appliances, etc., can solve the problems of low utilization rate of heat energy in the production process, waste of resources, thermal pollution of the atmospheric environment, etc., and is conducive to waste heat recovery, The effect of increasing the recycling rate, reducing the evaporation of water and heat energy waste

Inactive Publication Date: 2015-04-01
CHINA FIRST HEAVY IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of circulating cooling water certainly saves a lot of fresh water, but the use of a large amount of circulating cooling water reflects the low utilization rate of heat energy in the production process, which not only wastes resources, but also causes non-negligible thermal pollution to the atmospheric environment

Method used

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  • Energy-saving recycling combination system for industrial circulating cooling water
  • Energy-saving recycling combination system for industrial circulating cooling water
  • Energy-saving recycling combination system for industrial circulating cooling water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see figure 1 , image 3 , a metallurgical industry closed circulating cooling water system, consisting of cold water pool 1, water treatment process device 2, cooling water supply pump 3, pressure sensor 4, flow sensor 5, cooling equipment cooler A 6, cooling equipment cooler B 7. An intermediate pool 8, a lift pump 9, a closed cooling tower 10, a heat pump unit 11, a hot water pool 12, a liquid level sensor 13, and an electric control device 14. The cooling water is pressurized by the cooling water supply pump 3 from the cold water pool 1 and enters the cooler A 6 of the cooling equipment first through the cooling water supply pipeline. The cooler A 6 of the cooling equipment can be an air compressor, a hydraulic station, a water pump, a heat exchange The cooler of the equipment such as the cooling device indirectly cools the cooling equipment, and the outlet water is used as the water source and then enters the cooling equipment cooler B 7 in series through the pipel...

Embodiment 2

[0033] see figure 2 , Figure 4 , an open circulating cooling water system in the metallurgical industry, consisting of a cold water pool 15, a water treatment process device 16, a cooling water supply pump 17, a pressure sensor 18, a cooling equipment A 19, a cooling equipment B 20, an intermediate pool 21, a lifting Pump 22, cooling tower 23, heat pump unit 24, hot water pool 25, liquid level sensor 26, electric control equipment 27. The cooling water is pressurized by the cooling water supply pump 17 from the cold water pool 15 and directly enters the cooling equipment A 19 and the cooling equipment B 20 through the cooling water supply pipeline in parallel. The cooling equipment in this system is mainly used for ironmaking and steelmaking , continuous casting, hot rolling and other units of gas cleaning, slag flushing, flame cutting, spray cooling, quenching cooling, refining and dust removal, etc., the effluent returns to the middle pool 21 through pipelines. A pressur...

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Abstract

The invention discloses an energy-saving recycling combination system for industrial circulating cooling water. The system comprises two circulating cooling water systems, namely, a sealed-type circulating cooling water system and an open-type circulating cooling water system and specifically comprises a cold water tank, a water treatment process device, a cooling water supply pump, a pressure sensor, a flow sensor, a cooled device, an intermediate water tank, a lift pump, a cooling tower, a heat pump set, a hot water tank, a liquid-level sensor and an electronically controlled device and is an energy-saving and water-saving optimized combination system for industrial circulating cooling water. Serial-type water supply is adopted in the sealed-type circulating cooling water system, parallel-type water supply is adopted in the open-type circulating cooling water system, the utilization rate of the cooling water is increased to a maximize extent and the water supply amount of the cooling water is decreased. Since the system is provided with the water treatment process device, the water quality of the circulating water is improved, the sewage discharge capacity is decreased and the concentration multiple of the circulating water is increased. By arranging the heat pump set in the system, the low-temperature waste heat of the return water of the cooling water is effectively recovered, the evaporation amount is reduced and the effective utilization of the heat source is achieved and the system has important practical values.

Description

technical field [0001] The invention relates to an industrial circulating cooling water energy saving and reuse combined system, which belongs to the technical field of industrial circulating cooling water recycling treatment and energy saving. Background technique [0002] In industrial production, there are many situations where energy conversion takes place. Some of the energy is converted into heat energy. However, heat energy is sometimes not needed in production, and it must be dissipated in time to ensure normal production. At this time, a large amount of water needs to be used for cooling. This part of water is used as a heat-carrying tool for dissipating heat, which is called cooling. water. China's industrial water use has problems such as low water utilization rate and backward water technology. At present, the reuse rate of industrial water in my country is only about 55%, while the average in developed countries is 75%-85%. According to the China Water Resou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04F25D17/02
CPCC02F9/00C02F1/001C02F1/004C02F1/42C02F1/441C02F2301/08F25D17/02
Inventor 王昕彤许芳涤
Owner CHINA FIRST HEAVY IND
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