Integrated stability index balance reaction device

Abstract

The invention relates to an integrated safety index balanced reaction device which is characterized by comprising a box body and a controller, wherein the box body is internally provided with a to-be-detected water sample chamber and a balanced reaction chamber which are separated by a partition plate; a liquid level control alarm is hoisted on a box cover; a water sample overflow opening is formed in the upper part of the partition plate; a calcium carbonate particle filler module wrapped by a filter screen is arranged in the balanced reaction chamber; the box body is provided with a water sample inlet and a water sample outlet of the to-be-detected water sample chamber; a water sample inlet of the to-be-detected water sample chamber is connected with a water sample source by virtue of a water sample inlet electromagnetic valve and a manual flow adjusting valve; a water sample outlet of the to-be-detected water sample chamber is connected with a pre-filter sampling tube by virtue of a water sample outlet electromagnetic valve; a limiting overflow pipe is arranged in the balanced reaction chamber; a post-filter sampling opening of the balanced reaction chamber is connected with a post-filter sampling tube by virtue of a post-filter sampling electromagnetic valve; the controller is electrically connected with the liquid level control alarm, the water sample inlet electromagnetic valve, the water sample outlet electromagnetic valve and the post-filter sampling electromagnetic valve respectively. The device has the advantages of being reasonable in structure, true and reliable to sample, convenient to maintain, long in service life and the like.

Description

technical field [0001] The invention relates to the field of chemical analysis, and is an integrated stability index balance reaction device. Background technique [0002] In industrial production, a large amount of water is often used as a cooling medium, called industrial cooling water, such as surface water, sea water, and urban water, etc. There are calcium and magnesium ions, bicarbonate ions, etc. in the water body. During the heat exchange process due to Evaporation, the concentration of these ions changes, causing scaling or corrosion. At this time, the stability of the water quality is usually judged by the degree of stability, and the index of the degree of stability is measured by the stability index. [0003] The stability index is a dimensionless indicator of the scaling and corrosive tendency of water quality. In the industry standard, it uses the alkalinity change of the water sample to be tested before and after passing through the filter column filled with ...

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Problems solved by technology

[0007] (1) The chemical reaction formula when measuring the stability index is a dynamic equilibrium reaction formula. When industrial cooling water is used for cooling, it is a heating process in the reaction formula. The reaction proceeds to the right, and carbon dioxide gas will appear in the water quality. During the long-term operation process In the process, due to the use of the filter column, the air bubbles in the filter column will accumulate more and more. If it is not eliminated in time: First, the contact area between the water quality and the calcium carbonate particles will be greatly reduced, which will seriously affect the adhesion of calcium carbonate on the calcium carbonate particles in the reaction formula. Secondly, since this reaction is a dynamic equilibrium reaction, when the reaction moves to the right, the presence of a large amount of carbon dioxide gas will inhibit the direction of the equilibrium reaction, resulting in a smaller measured value than the real value. Main; again, a large amount of gas occupies the space of the filter column, which will reduce the flow rate of the water sample to be tested in the reaction column;

[0008] (2) Stability index measurement is mainly used in the detection of the stability of industrial cooling water quality. When a filter column is used, the effective column length is about 500mm, and the flow rate is required to be 6-8mL / min. , the phenomenon of fouling can easily cause the flow rate to gradually decrease until it is completely cut off. On-site testing shows that it can run continuously for 1 working day when the situation is good, and it can no longer meet the measurement requirements when running for 4 hours in severe cases;

[0009] (3) When replacing the filter column, in order to ensure that there are no air bubbles in the column, it takes a long time to complete the filling of calcium carbonate particles

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