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Boiler cascade type water reduction advantages

by:Mech     2020-08-10
Boiler water reduction can be used in large and medium-sized generator, control of boiler main steam and reheat steam temperature of warm water flow reduction, it is a key regulator of plants. The STN reduction of warm water regulator is one kind of multistage throttle valve of air defense, also known as high pressure difference regulating valve, it is a new structure of the regulator. Cascade type reduction of warm water regulator has the following advantages: 1, the fluid level step-down, fluid direction changing, cascade structure is used to decrease the STN warm water regulating valve, fluid through the winding channel, purpose is to reduce the flow velocity, energy consumption to prevent liquid cavitation. Increase the flow resistance, control flow, to prevent cavitation damage. Allow the differential 25 mpa. 2, multistage throttle: big 4 throttling flow, small category 5 when the discharge throttling, in order to reduce fluid scouring abrasion on the surface of a Industrial Valves core. 3, throttling face and sealing face separate, valve core and Industrial Valves core set of surface hardening treatment, the hardness has reached around HRC70, closed tight, long service life. 4, there is big gap open valve core surface fluid contains the solid particles such as 2 ~ 3 mm welding slag, valve core will not be jammed, flexible motion. 5, good flow control characteristics, wide adjustment range, About 60 ~ 70%) 。 The regulator is patent product, patent registration number in China is the NO. 15739, many power plants have been successfully using the multistage throttle regulator. In this paper, the keyword search: more valve technical articles motor Industrial Valves product information
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