发明名称 |
CHANGE-OVER DEVICE OF SAFETY VALVE UNIT |
摘要 |
FIELD: transportation of gas; gas distributing stations, compressor stations and other objects of gas pipe line transport. SUBSTANCE: device has body with inlet passage and two outlet passages having coaxial seats. Double-acting gate is fitted coaxially between seats; rod of this gate is kinematically linked with drive. Each outlet passage is connected with inlet of safety valve. Gate is made in form of spring-loaded intake valves and double-acting valve which are located concentrically relative to rod and are engageable with each other and with rod in preset sequence by means of stop rigidly linked with rod. Effective area of intake valves is lesser than effective area of double-acting valve; double-acting valve and seats engageable with it are cone-shaped in form. EFFECT: extended field of application; enhanced operational reliability. 2 dwg |
申请公布号 |
RU2134832(C1) |
申请公布日期 |
1999.08.20 |
申请号 |
RU19970114523 |
申请日期 |
1997.08.27 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU PO TAO "GAZPROM" |
发明人 |
ROSSEEV N.I.;KONDRAT'EV JU.P. |
分类号 |
F16K11/10 |
主分类号 |
F16K11/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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