Power plant valve repair
Power valve repair plant, equipment maintenance Jiangyin Oulei Si Valve Co., Ltd., specializes in thermal power plant of the system valve repair. Plant on-site valve repair can be online with the power valve repair, valve repair and high-temperature high-pressure valve repair has a wealth of experience in the field valve repair, valve repair system power: cooling system valve repair, Valve repair is mainly condensation system, the condenser loop control valve repair and deaerator level control valve repair, valve repair power plant boiler feed water system valve repair still the main target: the boiler feed pump cycle control valve repair (also called minimum flow control valve maintenance) of such basic knowledge of the valve repair; body usually forged from stainless steel, structural form of an optional angle valves, pressure seal form by the valve closed. Trim the form of letters selected balanced piston, the spool through the maze to complete the buck, buck the series to choose depending on the pressure, taking into account cost and service life, can have different choices, guaranteed choice is balanced piston, cylinder and maze balanced trim are made of wear-resistant materials. Secondly, the power valve repair are: the main water control valve repair, where in such valves, there are two opposing features in the full load state through this valve to minimize the pressure drop through the flow to achieve the desired maximum the best efficiency, during startup when the boiler pressure differential, low flow. To meet the above two features, you need the control valve has a large turndown ratio, the valve function of the equivalent of two valves, 30% of the starting valve (bypass) is usually chosen labyrinth trim, and full load when the election of the porous cage type. Power valve repair 5: Start valve repair boiler feed water, boiler feed water valve and the boiler feed pump starts circulating valve roughly similar conditions, that is very high inlet pressure and total pressure drop, which sets requirements of anti-cavitation valve on and off off close the valve and the boiler feed pump cycle is different, the valves do not need to run when all the valves to provide protection against cavitation, so the cage maze spool valve to meet this condition. Typically we recommend the use of small diameter trim angle valve structure of the maze. These are the conventional power plant valve repair system.
Here are some of the power plant valve repair photos:
 
 
 
 Power plant valve repair.pdf
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