Military extra-high-pressure oxygen valve

An oxygen valve and high-pressure technology, applied in the field of oxygen valves, can solve problems such as poor sealing effect and achieve excellent sealing performance

Active Publication Date: 2013-11-27
LANZHOU HIGH PRESSURE VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of grinding precision, the flat sealing surface has poor sealing effect on oxygen with extremely high pressure and flow rate that is easy to permeate.

Method used

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  • Military extra-high-pressure oxygen valve
  • Military extra-high-pressure oxygen valve
  • Military extra-high-pressure oxygen valve

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Embodiment Construction

[0016] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0017] Reference figure 1 with figure 2 , 3 , A military-industrial very high-pressure oxygen valve, including a sealing structure between the valve body, valve seat and the valve flap, the sealing structure between the valve body, valve seat and the valve flap is a differential angle seal with an angle difference of 2°~5° Vice; differential angle sealing pair is different from the sealing pair of ordinary valves. The structure is designed based on the comprehensive consideration of sealing effect and reducing sealing force. The sealing pair consists of two sealing surfaces at a certain angle, that is, the angles of the valve body sealing surface 1-1 and the valve flap sealing surface 2-1 are different, and there are always 2°, 3°, 4 between the two sealing surfaces. ° or 5° angle difference. The sealing material is made of MONEL alloy with extremely high f...

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PUM

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Abstract

The invention discloses a military extra-high-pressure oxygen valve which comprises a sealing structure between a valve seat of a valve body and a valve clack. The sealing structure between the valve seat of the valve body and the valve clack is an angle-difference sealing pair with the angle difference ranging from 2 degrees to 5 degrees, and a valve stem is sealed to form a composite packing sealing structure. The military extra-high-pressure oxygen valve has the advantages that owing to the angle-difference sealing pair, an extremely narrow linear sealing belt is formed when two matched sealing surfaces are in contact with each other, high sealing specific pressure can be generated by means of applying extremely low sealing force, the military extra-high-pressure oxygen valve is excellent in sealing performance and low in driving force requirement, accordingly, requirements of extra-high-pressure industrial-grade pure oxygen under harsh and complicated working conditions in the aerospace field can be met completely, and the purpose of safety usage is achieved.

Description

Technical field [0001] The invention belongs to the technical field of extremely high pressure oxygen valve manufacturing in the aerospace field, and specifically relates to an oxygen valve that can be reliably used under severe and complicated working conditions of extremely high pressure industrial pure oxygen. Background technique [0002] In the field of oxygen valve use in metallurgical systems, the pressure of oxygen valve is generally not higher than PN40, and the nominal diameter is generally not higher than DN500; in the field of oxygen valve use in coal chemical system, the pressure of oxygen valve is generally not higher than CL1500 or PN250, and the nominal diameter is general Not higher than DN300. In the aerospace field, due to the particular use of the valve, the pressure and caliber requirements of the valve are high. The current pressure is generally not lower than CL2500 or PN420, and the diameter is DN10~DN500. Because the gas of the oxygen valve in the aeros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/32F16K27/02F16K51/00
Inventor 陈清流乐精华靳国平盖广平张琳张晓军陈文鑫郝宏达张娜张国锋董霞康世屏王万斌高福赵启州
Owner LANZHOU HIGH PRESSURE VALVE
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