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A system and method for automatically adding oxygen to water supply

A water and oxygen supply technology, applied in chemical instruments and methods, descaling and water softening, water treatment parameter control, etc., can solve the problems of complex oxygen addition operation, inability to realize automatic and precise control of oxygen addition, and heavy manual labor. To achieve the effect of stable oxygen addition, saving labor costs, and small fluctuations

Active Publication Date: 2021-01-29
湖南省湘电试验研究院有限公司
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in view of the technical problems existing in the prior art such as the inability to realize automatic and precise control of oxygenation, complex oxygenation operation, and large manual labor, the present invention provides a water supply system capable of realizing precise control of oxygenation Automatic oxygenation system and method

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  • A system and method for automatically adding oxygen to water supply

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0035] System embodiment

[0036] This embodiment discloses a power plant electrolytic feedwater automatic oxygenation system, the automatic oxygenation system is as follows figure 1 As shown, the automatic oxygenation system consists of an adjustable DC power supply 01, a PID control module 02, an oxygen generator 03, a plunger type automatic oxygenator 04, an oxygen dryer 05, a dryer outlet check valve 06, and a plunger Outlet check valve 07, piston pump DCS controller 08, online dissolved oxygen meter 09. Wherein the oxygen generator 03 is composed of an electrolytic cell 31, a hydrogen production port 32, an oxygen production port 33, a cathode plate 34, an anode plate 35, an electrolyte 36, a diaphragm 37, an ultrasonic liquid level gauge 38 and a water re...

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Abstract

The invention relates to an automatic oxygenation system for water supply, comprising an adjustable power supply, a PID control module, an oxygen generator, an oxygenation component and a unit dissolved oxygen detection part, the unit dissolved oxygen detection part is connected with the unit, and the PID control module is respectively connected with the adjustable oxygen generator The power supply and the dissolved oxygen detection part of the unit are connected, the adjustable power supply is connected with the oxygen generator, and the oxygen generator is connected with the oxygenation component. The invention also relates to a method for automatically adding oxygen to water. The PID control module controls the adjustable power supply to output the corresponding current value to the oxygen generator according to the dissolved oxygen concentration signal detected by the dissolved oxygen detector of the unit and the set target dissolved oxygen concentration signal. , the oxygen generator generates a matching amount of oxygen through electrolysis of water, and the generated oxygen is added to the feed water of the unit through the oxygenation component. The invention has the advantages of high degree of automation, precise control of oxygen addition, maintenance-free equipment, labor saving and the like.

Description

technical field [0001] The invention belongs to the field of boiler water treatment in power plants, and in particular relates to a power plant electrolytic feedwater automatic oxygenation system and method. Background technique [0002] For a long time, the boiler feed water treatment method in thermal power plants mostly adopts the full-volatility treatment method, that is, adding ammonia water and hydrazine to the boiler water to control the alkalinity of the boiler water. The function of hydrazine is to remove trace oxygen in the feed water at the outlet of the deaerator. , so that the feed water is in a reducing condition, and this treatment method is also called a reducing full-volatility treatment. If hydrazine is not added and a small amount of oxygen remains in the water, it is called oxidative full volatilization treatment. Under the condition of full volatilization treatment, the boiler tube is oxidized by high-temperature and high-pressure steam, and a loose str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/00
CPCC02F5/00C02F2209/22
Inventor 查方林陶莉袁新民刘凯车垚王凌
Owner 湖南省湘电试验研究院有限公司
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