A Diaphragm Supporting Structure of a High Temperature Pressure Relief Valve with Position Limiting and Centering Adjustment Functions
A centering adjustment and support structure technology, applied in the direction of safety valves, balance valves, valve devices, etc., can solve problems such as damage, plastic deformation of the diaphragm, and achieve improved flexibility, structural realization, improved life and functional reliability Effect
Active Publication Date: 2015-11-18
NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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Problems solved by technology
[0003] In order to solve the technical problem of plastic deformation or structural damage caused by the overturning of the diaphragm, the invention provides a diaphragm that can not only limit the maximum deformation of the diaphragm in the axial direction, but also adjust the centering of the diaphragm and the main spring. sheet support structure
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[0020] A diaphragm support structure for a high-temperature pressure relief valve with position-limiting and centering adjustment functions, including a diaphragm 1, a pressure ring 7, a valve body 2, a tray 3, a compression sleeve 4, a main spring seat 5, and a main spring 6 .
[0021] The compression ring 7 presses the edge of the diaphragm 1 on the valve body 2, and the compression sleeve 4 is divided into two parts, the upper compression sleeve 41 and the lower compression sleeve 42, and the diameter of the inner hole of the upper compression sleeve 41 is less than The diameter of the inner hole of the lower compression sleeve 42 and the diameter of the outer wall of the upper compression sleeve 41 are smaller than the diameter of the outer wall of the lower compression sleeve 42; the inner wall of the upper compression sleeve 41 is compatible with the outer wall of the tray 3, and the upper The annular shoulder formed by the compression sleeve 41 and the lower compression...
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The invention relates to a membrane supporting structure of a high temperature reducing valve with limiting and aligning and adjusting effects. The supporting structure consists of a tray, a compression ring, a compression sleeve and a main spring base, and has the effect of limiting axial deformation of a membrane and aligning and adjusting the membrane. The free end of a spring compresses the upper bottom face of a spring base body on the lower bottom face of the compression sleeve. The upper bottom face of the tray is in surface contact with the middle part of the membrane. In the working process, the membrane stressed overturns downward, the lower bottom face on the upper part of the tray is in surface contact with the upper bottom face of the compression sleeve, and the upper bottom face of the spring base body is separated from the lower bottom face of the compression sleeve. In the process, the head of the spring base is always contacted with a ball socket on the lower bottom face of the tray. The supporting structure provided by the invention is suitable for supporting various metal and non-metal membranes, and further has the characteristics of high temperature (700K) resistance and corrosion resistance. The supporting structure is in particular suitable for a high-precision, high-temperature and corrosive gas medium reducing valve, and can be repeatedly used after simple maintenance.
Description
technical field [0001] The invention relates to a diaphragm support structure of a pressure reducing valve with position limiting and centering adjustment functions, and is especially suitable for a high precision, high temperature (≯700K) gas pressure reducing valve. Background technique [0002] High temperature (gas) pressure reducing valves exist in various high temperature gas medium working systems to regulate and stabilize system pressure. As the pressure regulating component of the system, the high temperature (gas) pressure reducing valve directly affects the working performance and reliability of the system. Restricted by high-temperature service conditions, metal diaphragms are mostly used as sensitive components of pressure reducing valves, but metal diaphragms are prone to overturning and excessive plastic deformation or structural damage. Contents of the invention [0003] In order to solve the technical problem of plastic deformation or structural damage ca...
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IPC IPC(8): F16K17/00
Inventor 宋会玲孙亮曾维亮王春民袁洪滨罗大亮董万峰
Owner NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH