Cylindrical Multi High Pressure Two Step Stage Trim, Flow Control Valve

摘要

flow control device applying to it a control valve in the piping system of the pressure loss with the structure temperature of the fluid, pressure drop in the valve operation condition under a high pressure (the pressure difference, P) with a differential pressure-flow conditions in the valve condition and in consideration of the relationship between, and the differential pressure two-step stream flow control valves ( 9 ) relates to a valve, The flow control device ( 9 ) is used to control 2-inch 2500LBS () suite of standards-fired power plants blower pressure control valve (Shoot Blower Pressure Control Valve), using standard thermal power (Operation) Conditions is used in the steam temperature is 383 degrees, the valve flow rate 18 t / hr, shear pressure is 202 bar (bar), delta P ( P) 38 bar (bar) about the operating conditions. Each cylinder ( 41,43,45 ) hole shape is provided on the surface is classified as 4 , the rear end of the pressure and the differential pressure control step for each cylinder, and it is configured, separated by a step 2 , as it forms a passage for foreclosure to protect the valve from the shock wave energy at high temperature and high pressure, differential pressure fluctuations open and cross-point of a very severe stroke of the valve opening operation (Stroke), the period of less than 10% of the area in order to prevent vibration and little multiple 3 small round hole in the cylinder ( 13 ) and the small slot home ( 14 consisting of ) small-caliber two-step flow ( 31 and by configuring the ) to minimize noise, vibration balance foreclosure , and the rear differential pressure maintenance and pressure control step of driving the opening stroke (Stroke) This section covers an area more than 10% big multiple 3 a circular hole in the cylinder ( 11 ) and slot home ( 12 ) consisting of Large two-step flow ( 21 ) to characterized in that it is formed to match the flow characteristics including, The one and two-cylinder ( 41,43 ) a plurality of surfaces provided in the Large two-step bending euros ( 22,23 ) and Small Diameter two-step bending euros ( 32,33 ) and, 3 The outermost cylinder ( 45 ) provided on the surface a plurality of circular holes ( 11 ) and a small round hole ( 13 ) is assembled for each of the pin holes of less than 4 on the top surface of the cylinder ( 15 ) and the euro by the bending pin has been set for the assembly, a circular hole in the three-cylinder ( 11 ) and slot home ( 12 ) consisting of large diameter two-step flow ( 21 ) and a small round hole in the three-cylinder ( 13 ) and a small slot home ( 14 ) consisting of small bore two-step ( 31 ), including a structure is formed, the four holes on this kind of shape, and divided into two stages with a five euro to 3-cylinder bending structure high differential pressure two-step flow control valve trim ( 9 ) will be on. ;