Development And Research Of Acceptor For Boiler Drain With High Energy Built In Deaerator

Supercritical boilers startup process will produce a large number of high-temperatureand high-pressure drain, enter it into the deaerator can also implement refrigerants andheat recovery, further improving efficiency of units. But if water and steam mixture directputed into the water tank without acceptor, the saturated water will expand and impactdeaerator internal components with great energy.This could cause damage to the deaeratorinternals. Therefore, in order to guarantee supercritical boilers start-up drain entered thedeaerator safely, developing a dedicated internal high energy acceptor is of greatimportant. In this article we have developed acceptor for boiler drain with high energybased on the vapor-liquid ejector.In this article by establishing the vapor-liquid ejector performance test system, wehave done vapor-liquid ejector spraying performance experiment using single-nozzleinjectors and multi-nozzle injectors,to research the impact of the spraying performancefrom dryness fraction of working steam and structural parameters. At the same time todrain energy experimental noise will also be to study the various hydrophobic interactionenergy of vibration and on deaerator internals of impact. Through experimental andtheoretical analysis, we have completed the high energy drain acceptor design.Study results of the paper indicate that:Using the high-energy drain acceptor can handle all traffic, various parameters ofmedia dissipation demands.Using the high-energy drain acceptor can significantly reduce the noise, thuseffectively avoid the deaerator internals impact.The structure of using the high-energy drain acceptor structure is simple, flexiblearrangement, high reliability, low cost manufacturing, applied broadly.