Magnetic field deironing and purifying device of condensed water

Abstract

The invention relates to a deironing device of power plant condensed water, which is formed by combining magnetic unit components; the magnetic unit components are permanent magnetic pipes, and permanent magnets are fixedly encapsulated in the permanent magnetic pipes in the mode of homopolar opposition. The magnetic unit components are arranged in a parallel or cross mode to form frames, and theframes are fixedly arranged and combined into a hollow cube-shaped magnetic field deironing and purifying device in a surrounding mode. The device is installed in condenser (or air cooler unit exhaustdevice) equipment in a steam turbine workshop of a power plant, and is used for deironing and purifying the condensed water. The invention develops the deironing and purifying functions in conventional condenser space; and a magnetic field is installed in the space, occupying no plant areas, greatly lightening the difficult on arrangement, and skillfully and effectively establishing a magnetic deironing and purifying device for the power plant condensed water by utilizing original thermodynamic equipment condensers.

Description

technical field [0001] The invention relates to a separation device for iron particles in condensed water in a power plant, in particular to a novel condensed water iron removal and purification device. Background technique [0002] The steam-water pipelines of power plants and their related thermal equipment are all made of iron-based materials, which will produce a large amount of iron corrosion products called harmful impurities during operation. These iron impurities are deposited on the inner wall of the pipeline. Scale will affect the heat transfer of the tube wall and cause corrosion under the scale, which will affect the operation safety of the turbogenerator. Therefore, the water system of power plants is equipped with various forms of chemical water treatment and iron removal filtration equipment. In these purification equipment, filter materials such as resin and fiber are all used as filter materials, and the adsorption and filtration of these substances are used...

AI Technical Summary

Problems solved by technology

[0003] 1. All filtering equipment is single and bulky, occupying a large area of ​​the factory building and high engineering cost

[0004] 2. These filtration and purification equipment use fibers, resins, etc. as filter materials. The continuous replacement and disposal of filter materials will not only cause a waste of funds, but also cause adverse effects on the environment.

[0005] 3. At the same time, the operating temperature of such resin and other polymer filter materials generally does not exceed 75°C. If the air-cooled unit is in an operating environment with high external ambient temperature, the condensed water temperature may exceed 70°C, which often causes chemical fine treatment. Quit work, which leads to the lack of iron removal and purification devices in the system

[0006] 4. The water passing through the filtration and purification equipment must have a certain pressure in order to overcome the resistance generated by the filtration equipment, which requires the selection of a high-pressure water pump, so this will increase energy consumption and capital investment

In order to improve the quality of condensed water, when some power plants transform the iron removal device, they often encounter the difficulties of insufficient plant area and insufficient pressure head of the condensed water pump, which often leads to stranded technical transformation

[0007] 5. In order to prevent resin and other filter materials from being polluted prematurely, the traditional "finishing treatment" equipment for iron removal and purification of condensed water has restrictions on the quality of incoming water when it is put into use. When the steam turbine generator set is started or the water quality is poor under variable working conditions, the traditional iron removal device "finishing treatment" cannot be put into operation, so that the unit has no water purification device during start-up, and the natural discharge of condensed water is uncontrolled, resulting in A large amount of condensed water is wasted, and the process of starting the unit for grid-connected power generation is prolonged

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