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The method of determining the leakage rate of the circulation system by the concentration ratio in the presence of impurity removal

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

Active Publication Date: 2021-07-20
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

[0022] An open circulating water cooling system with long-term stable operation, F 2 The constant is 0.01, the system F 11 is 0.0003, the potassium ion concentration in the circulation system is 12.2mg / L, the magnesium ion is 24.8mg / L, and the chloride ion is 43.1mg / L; the potassium ion concentration in the replenishment water is 3.1mg / L, and the magnesium ion is 8.1mg / L L, chloride ion is 15.2mg / L, impurity removal rate H is 0.003.

[0023] Therefore N=(12.2+24.8+43.1) / (3.1+8.1+15.2)=3.03,

[0024] System leakage rate:

[0025] f 12 =[0.003×3.03-0.01(1+0.003×3.03)]·(1+0.003×3.03-3.03) -1 -0.0003

[0026] =0.000195

[0027] The real leakage rate of the system is obtained through model calculation, indicating that there is a certain leakage in the operating system, and a comprehensive investigation should be carried out to find out the cause of the leakage rate and improve or eliminate it, so as to reduce the fresh water consumption of the system and realize System water...

Embodiment 2

[0029] An open circulating water cooling system with long-term stable operation, F 2 The constant is 0.02, the system F 11 0.0002, the silicon ion concentration in the circulation system is 1.6mg / L, the potassium ion is 19.9mg / L, and the magnesium ion is 20.5mg / L; the silicon ion concentration in the replenishment water is 0.42mg / L, and the potassium ion is 5.1mg / L , the magnesium ion is 5.5 mg / L, and the impurity removal rate H is 0.005.

[0030] Therefore N=(1.6+19.9+20.5) / (0.42+5.1+5.5)=3.81,

[0031] System leakage rate:

[0032] f 12 =[0.005×3.81-0.02(1+0.005×3.81)]·(1+0.005×3.81-3.81) -1 -0.0002

[0033] =0.000276

[0034] The real leakage rate of the system is obtained through model calculation, indicating that there is a certain leakage in the operating system, and a comprehensive investigation should be carried out to find out the cause of the leakage rate and improve or eliminate it, so as to reduce the fresh water consumption of the system and realize System ...

Embodiment 3

[0036] An open circulating water cooling system with long-term stable operation, F 2 The constant is 0.03, the system F 11 is 0.00025, the silicon ion concentration in the circulation system is 2.5mg / L, the potassium ion is 16.1mg / L, and the calcium ion is 48.2mg / L; the silicon ion concentration in the replenishment water is 1.45mg / L, and the potassium ion is 4.1mg / L L, calcium ion is 12.5mg / L, impurity removal rate H is 0.007.

[0037] Therefore N=(2.5+16.1+48.2) / (1.45+4.1+12.5)=3.70,

[0038] System leakage rate:

[0039] f 12 =[0.007×3.70-0.03(1+0.007×3.70)]·(1+0.007×3.70-3.70) -1 -0.00025

[0040] =0.001571

[0041] The real leakage rate of the system is obtained through model calculation, indicating that there is a certain leakage in the operating system, and a comprehensive investigation should be carried out to find out the cause of the leakage rate and improve or eliminate it, so as to reduce the fresh water consumption of the system and realize System water sav...

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Abstract

The invention discloses a method for determining the leakage rate of a circulating system through a concentration ratio when impurities are removed, which can objectively and truly reflect the operating parameters of the circulating water system, adjust and troubleshoot problems in operation in time, so as to accurately control the leakage of the system. Loss rate, reduce the new water consumption of the system, and achieve the effect of energy saving and emission reduction.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28C1/00F28F27/00C02F1/00C02F103/02
CPCC02F1/00C02F2103/023F28F27/00
Inventor 胡绍伟吕子强马光宇陈鹏王飞刘芳王永徐伟
Owner ANGANG STEEL CO LTD
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