Tester for water quality stability characteristics of industrial water
A technology for industrial water and tester, applied in chemical analysis using titration method, can solve problems such as poor reliability, and achieve the effects of improving accuracy and reliability, low maintenance, and wide adaptability
Pending Publication Date: 2018-08-14
JILIN ELECTRIC POWER RES INST LTD +2
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This is completely different from the water quality stability index calculated by empirical formulas. The empirical formula is often idealized. Therefore, the actual use factor is the root cause of the deviation of the result of the water quality stability index from the actual situation, which leads to poor reliability in practical application and cannot be accurately and conveniently calculated. Distinguish the water quality stability characteristics of various water samples (such as lime treatment effluent, industrial water, circulating water, etc.) in industries such as industry and thermal power generation
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[0010] The industrial water quality stability characteristic tester provided by the invention utilizes following equilibrium reaction to measure the stability (stability) of water:
[0011] Ca 2+ +HCO 3 - =CaCO 3 +CO 2 +H 2 o
[0012] When the water sample passes through saturated calcium carbonate particles, compare the influent alkalinity JD j , effluent alkalinity JD c , there are three relationships:
[0013] 1) The alkalinity of the influent and effluent water is basically the same, that is, JD j =JD c
[0014] 2) The alkalinity of the influent water is greater than the alkalinity of the effluent water, that is, JD j >JD c
[0015] 3) The alkalinity of the influent water is less than the alkalinity of the effluent water, that is, JD j c
[0016] When the carbon dioxide and alkalinity in the water are in equilibrium with the environment, then JD j =JD c ; When the actual content of carbon dioxide in water is higher than the equilibrium content of carbon di...
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The invention provides a tester for water quality stability characteristics of industrial water. The tester comprises a water pump, a glass bottle, a glass fiber filter, a calcium carbonate filter, micro stirring motors, a lithium battery pack, a hydrochloric acid tank, a first titration bottle and a second titration bottle, wherein the water pump is communicated with the glass bottle; the glass bottle is communicated with the glass fiber filter; the glass fiber filter is communicated with the calcium carbonate filter and the second titration bottle; the calcium carbonate filter is communicated with the first titration bottle; the hydrochloric acid tank is communicated with the first titration bottle and the second titration bottle; stirring shafts of the micro stirring motors are correspondingly inserted into the first titration bottle and the second titration bottle; a pH meter is inserted into each of the first titration bottle and the second titration bottle; ultrasonic level gagesare respectively arranged in the first titration bottle and above the second titration bottle. By using the tester provided by the invention, the workload can be reduced; the tester can be used as anonline instrument; a continuous detection means for water quality or equipment operation parameters is facilitated; precision and reliability of equipment operation can be greatly improved.
Description
technical field [0001] The invention belongs to the technical field of water quality chemical analysis instruments, in particular to an industrial water quality stability characteristic tester for qualitative detection and identification of water quality stability, scaling and erosivity of water samples. Background technique [0002] The water quality of various water sources such as surface water, industrial water, and urban reclaimed water and their water treatment processes (such as membrane separation treatment, cooling water treatment) all involve water quality stability issues, and it is necessary to make a judgment on the corrosion and scaling tendency of water , otherwise it will cause serious corrosion and scaling in the water system. Due to factors such as temperature and chemical reactions, pH detection often cannot accurately reflect the chemical stability of water. In the process of water treatment, there are many scaling and corrosion factors, but due to the c...
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IPC IPC(8): G01N31/16
CPCG01N31/16
Inventor 张春波王久生张建新王海军赵维愚刘熙旸董冠良周诗宇杨雪胡婧婷黄维彤姜欣王刚李爽田姝
Owner JILIN ELECTRIC POWER RES INST LTD