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Intelligent electric magnetic filter and controlling method thereof

An electromagnetic filter and intelligent control unit technology, applied in chemical instruments and methods, separation methods, filtration and separation, etc., can solve the problems of magnetic field strength adjustment, easy-to-heat effluent iron content, instability, etc., to achieve flexible adjustment and circuit loss small effect

Inactive Publication Date: 2015-04-08
HUANENG POWER INT INC +3
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the magnetic field strength of several commonly used electromagnetic filters cannot be adjusted according to the actual influent water quality conditions, and they are always kept in the operating state of maximum power consumption, which has the disadvantages of high power consumption, easy heating and unstable iron content in the effluent. Restricting the recycling and reuse of heating network drainage

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  • Intelligent electric magnetic filter and controlling method thereof

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The following is an example of a supercritical heating unit in northern my country using the electromagnetic filter to treat the return water (recovered to condensed water) of the heating network during the winter heating period to illustrate its technical solution.

[0030] (1) A supercritical heating unit adopts the electromagnetic filter of the present invention, and its excitation coils are three groups. When the heating starts in winter, the electromagnetic filter is put into use, and the two sets of coils are energized. The sampling unit 5 of the electromagnetic filter starts to sample the water inflow and outflow of the filter in real time, and the online laser particle counter detects the suspended iron particles in the sample water in real time. The flow meter detects the water flow rate of the filter.

[0031] (2) Wh...

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Abstract

The invention discloses an intelligent electric magnetic filter and a controlling method thereof. The intelligent electric magnetic filter comprises a vertical type pressure resistant vessel, a magnetic material arranged in the vertical type pressure resistant vessel, an external excitation system arranged outsides the vertical type pressure resistant vessel and an intelligent monitoring system for running power consumption which is connected with the external excitation system, wherein the external excitation system comprises two or more groups of excitation coil which are arranged outsides the vertical type pressure resistant vessel, each group of excitation coil is connected with a respective rectifying system, the intelligent monitoring system for running power consumption comprises a sampling unit, a particle counting meter and a flowmeter, the sampling unit is connected with a water inlet and a water outlet of the vertical type pressure resistant vessel, the particle counting meter and the flowmeter are connected with the sampling unit and the input end of the intelligent controlling unit, and the output end of the intelligent controlling unit is connected with the rectifying systems. The invention also provides the controlling method of the intelligent electric magnetic filter. With the adoption of the intelligent electric magnetic filter and the controlling method, the electromagnetism intensity can be intelligently regulated according to the actual iron content of inlet water, flow and effluent quality, the running power consumption of the electric magnetic filter can be effectively lowered, and meanwhile, the iron content of effluent reaches the standard and keeps stable.

Description

technical field [0001] The invention relates to an electromagnetic filter for removing iron from condensed water, hydrophobic and return water in power plants, as well as high-temperature water, emulsion, degreasing liquid and other liquids in petrochemical and metallurgical industries, and specifically relates to an intelligent electromagnetic filter and its Control Method. Background technique [0002] Developing cogeneration of heat and power and implementing central heating have become the main direction of urban heating, and it is also one of the important measures to save energy and improve the environment. In the process of combined heat and power generation, the drainage temperature of the heat network generated by the steam extraction and condensation of the steam turbine is relatively high, and contains sensible heat that can be used. If it is not recycled, it will cause a great waste of resources and increase the production of sulfur dioxide and carbon dioxide. e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D35/06B01D35/14B01D37/04
Inventor 田文华祝晓亮和慧勇叶洲钱殷李楠
Owner HUANENG POWER INT INC