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Method for determining leakage rate of circulating water cooling system through concentration ratio

A circulating water cooling and concentration rate technology, applied in the field of environmental engineering, can solve the problems of quantitatively describing the relationship between the concentration rate and leakage rate of the circulation system, and achieve the effect of reducing fresh water consumption and precise control

Inactive Publication Date: 2020-09-15
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the current domestic environmental protection policies are becoming more and more stringent, and enterprises are paying more and more attention to the management of water resources, there is no mathematical model to quantitatively describe the relationship between the concentration ratio and leakage rate of the circulation system.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An open circulating water cooling system with long-term stable operation, F 2 The constant of is 0.01, the F of the system 11 Is 0.003, the potassium ion concentration in the circulatory system is 11.2mg / L, magnesium ion is 23.8mg / L, chloride ion is 42.1mg / L; the potassium ion concentration in makeup water is 3.8mg / L, magnesium ion is 8.2mg / L L, chloride ion is 14.1mg / L. So N=(11.2+23.8+42.1) / (3.8+8.2+14.1)=2.95,

[0022] System leakage rate F 12 =0.01 / (2.95-1)-0.003=0.021.

[0023] The true leakage rate of the system is calculated through the model, indicating that there is a certain leakage in the operating system, and a comprehensive investigation should be carried out to find out the reason for the leakage rate and improve or eliminate it, thereby reducing the new water consumption of the system and achieving System water saving and emission reduction.

Embodiment 2

[0025] An open circulating water cooling system with long-term stable operation, F 2 The constant of is 0.015, the F of the system 11 0.003, the silicon ion concentration in the circulation system is 1.3mg / L, potassium ion is 17.9mg / L, magnesium ion is 21.5mg / L; the silicon ion concentration in the replenishment water is 0.24mg / L, potassium ion is 3.2mg / L , Magnesium ion is 5.1mg / L. So N=(1.3+17.9+21.5) / (0.24+3.2+5.1)=4.77,

[0026] System leakage rate F 12 =0.015 / (4.77-1)-0.003=0.001.

[0027] The true leakage rate of the system is calculated through the model, indicating that there is a certain leakage in the operating system, and a comprehensive investigation should be carried out to find out the reason for the leakage rate and improve or eliminate it, thereby reducing the new water consumption of the system and achieving System water saving and emission reduction.

Embodiment 3

[0029] An open circulating water cooling system with long-term stable operation, F 2 The constant is 0.02, the F of the system 11 Is 0.003, the silicon ion concentration in the circulatory system is 2.4mg / L, potassium ion is 15.1mg / L, calcium ion is 48.6mg / L; the silicon ion concentration in the make-up water is 1.44mg / L, potassium ion is 3.4mg / L L, calcium ion is 13.6mg / L. So N=(2.4+15.1+48.6) / (1.44+3.4+13.6)=3.58,

[0030] System leakage rate F 12 =0.02 / (3.58-1)-0.003=0.048.

[0031] The true leakage rate of the system is calculated through the model, indicating that there is a certain leakage in the operating system, and a comprehensive investigation should be carried out to find out the reason for the leakage rate and improve or eliminate it, thereby reducing the new water consumption of the system and achieving System water saving and emission reduction.

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Abstract

The invention discloses a method for determining the leakage rate of a circulating water cooling system through the concentration ratio. The method can objectively and truly reflect the operation parameters of the circulating water system, and timely adjust and check problems in operation, so that the leakage rate of the system is accurately controlled, the new water consumption of the system is reduced, and the effects of energy conservation and emission reduction are achieved.

Description

Technical field [0001] The invention belongs to the field of environmental engineering, and particularly relates to a method for determining the leakage rate of a circulating water cooling system through a concentration ratio. Background technique [0002] Taking steel companies as an example, the circulating water cooling system has a wide range of uses and is essential for the production of the company. Most of the operation methods are that the water after the heat exchange with the equipment is transported to the tower by the lift pump, and then the heat exchange between the water and the air, or heat and mass exchange, is achieved to reduce the water temperature. [0003] The water management level of the water system in developed countries is relatively high. Generally, the recycling and reuse of water is considered as much as possible, and non-traditional water resources are considered as supplementary water sources to reduce the amount of new water and the amount of dischar...

Claims

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Application Information

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IPC IPC(8): F25D17/02F25D29/00F28F27/00
CPCF25D17/02F25D29/00F25D2500/04F28F27/00
Inventor 胡绍伟吕子强马光宇伊源辉陈鹏张彦王飞刘芳王永徐伟
Owner ANGANG STEEL CO LTD
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