Steam adjustment valve
A technology of regulating valve and regulating valve seat, which is applied in the direction of sliding valve, valve device, engine components, etc., can solve the problems of affecting the sliding of regulating valve core and the corrosion of regulating valve core, etc.
Active Publication Date: 2016-03-30
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0005] In order to solve the problem that the steam enters the matching gap between the regulating valve core and the fixed valve seat, which causes the regulating valve core to corrode and affects the sliding of the regulating valve core, the embodiment of the present invention provides a steam regulating valve
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] An embodiment of the present invention provides a steam regulating valve, such as figure 1 As shown, the steam regulating valve includes a valve body 100, an upper valve cover 120, a lower valve cover 110, a fixed valve seat 130, a regulating valve seat 160 and a regulating valve core 140. The regulating valve core 140 is provided with a regulating valve rod 144, and the upper The valve cover 120 and the lower valve cover 110 are fixed outside the valve body 100, and the fixed valve seat 130 is installed inside the valve body 100 to divide the inside of the valve body 100 into a first chamber communicating with the inlet 101 and a second chamber communicating with the outlet 102. Two chambers, the first chamber and the second ch...
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The invention discloses a steam adjustment valve, and belongs to the field of valves. The steam adjustment valve comprises a valve body, a fixed valve seat, an adjustment valve seat and an adjustment valve core, wherein the adjustment valve core is provided with an adjustment valve rod and is installed in the adjustable valve seat in a sliding mode; a limiting structure is arranged on the surface, making contact with the fixed valve seat, of the adjustment valve core; the adjustment valve core is provided with a first pressure balance hole; the adjustment valve rod is provided with a second pressure balance hole; the first pressure balance hole is communicated with the second pressure balance hole; the adjustment valve rod is provided with a leakage hole communicated with the second pressure balance hole. As the first pressure balance hole and the second pressure balance hole are arranged, and the leakage hole is formed in the adjustment valve rod, so that steam enters a matching interval, passes through the first pressure balance hole and the second pressure balance hole and is guided out of the matching interval through the leakage hole. Therefore, the problems that as steams enters the matching interval of the adjustment valve core and the fixed valve seat, the adjustment valve core is rusted, and then sliding of the adjustment valve core is affected are solved.
Description
technical field [0001] The invention relates to the field of valves, in particular to a steam regulating valve. Background technique [0002] Steam regulating valve is a valve widely used in the field of steam engineering. Its main function is to adjust the steam flow through the valve to meet the steam flow requirements of steam equipment under different working conditions. [0003] The structure of the steam regulating valve is relatively similar. The main structure includes a valve body, a fixed valve seat, a regulating valve seat, a regulating valve core and a regulating valve stem. The regulating valve core is usually slidably set in the regulating valve seat. Adjust the position of the spool in the regulating valve seat to control the flow of steam. [0004] Since the steam regulating valve usually works in a high-temperature and high-pressure steam environment, the steam will enter the fitting gap between the regulating valve core and the fixed valve seat under the a...
Claims
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Login to View More IPC IPC(8): F16K3/32
CPCF16K3/32
Inventor 肖志远杜方鑫崔广锋甘正林杨增光
Owner WUHAN MARINE MACHINERY PLANT