Liquid level detection type nitrogen-sealed water tank

Abstract

The invention discloses a liquid level detection type nitrogen-sealed water tank, which comprises a sealed pure water tank with a water inlet pipe and a water service pipe, and a nitrogen-sealed device, wherein the nitrogen-sealed device comprises a nitrogen pipeline (17), a water-sealed respirator (3), a liquid level pipe (9) and a pipeline (11), and the nitrogen pipeline (17) is connected with the sealed pure water tank (13) through an automatic valve (16); a partition plate (4) for partitioning the water-sealed respirator into an inspiratory chamber A and an expiratory chamber B is arranged in the water-sealed respirator (3), and the inspiratory chamber is communicated with the expiratory chamber through a guide pipe (12) penetrating through the partition plate; a discharge pipe (2) is arranged at the lower end of the water-sealed respirator, and the liquid level pipe (9) is inserted into the water-sealed respirator from the upper part; an opening (7) communicated with the atmosphere is arranged at the upper part of the liquid level pipe, and a liquid level detecting device (8) is arranged in the liquid level pipe (9) and is used for providing signals to control the opening and closing of the automatic valve (16); and an exhaust port (14) of the pure water tank is connected with the upper part of the inspiratory chamber A of the water-sealed respirator through the pipeline (11).

Description

technical field [0001] The invention relates to a nitrogen-sealed water tank, in particular to a liquid-level detection type nitrogen-sealed water tank. Background technique [0002] In many fields, such as food, pharmaceutical, chemical, electric power, electronics and other industries, it is necessary to use high-clean pure water. In order to provide a stable supply of pure water to the water points, it is necessary to configure a pure water tank. However, high-purity water has poor buffer performance and is easily polluted by the outside world. Therefore, it is necessary to isolate it from the outside world as much as possible to ensure the quality of pure water. The air contains a lot of microorganisms, dust, carbon dioxide and other substances. If it is in direct contact with the pure water in the pure water tank, it will have a great impact on the quality of the pure water, resulting in unqualified water quality. Therefore, people have thought of many ways to solve t...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned problems such as the isolation of pure water and air in the pure water tank in the prior art and poor control accuracy, the present invention proposes a liquid level detection type nitrogen-sealed water tank, The detection and control technology used in the water tank can accurately track the slight changes in the gas pressure in the pure water tank, greatly improve the detection and control accuracy, and reduce system errors

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