发明名称 |
Surge reliever with increase capacity flow |
摘要 |
A liquid pipeline surge reliever system wherein a main surge relief valve of the expansible tube type is connected into a diverter line from the pipeline. The valve opens when pressure in the diverter line exceeds a jacket control pressure. The jacket is evacuated through a bleed valve, which may be a smaller expansible tube valve but with enough capacity to very rapid evacuation of the main valve jacket. Gas pressure from a suitable source is connected to the main valve jacket whieh, in turn, is connected to both the jacket and the inlet of the bleed valve. Pressure of pipeline liquid in a sensing line opens a pilot valve through which the jacket of the bleed valve is exhausted should the pipeline pressure reach a predetermined surge level. Pipeline pressure at that surge level also closes an on-off valve in the gas supply line while the surge is being relieved.
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申请公布号 |
US4333496(A) |
申请公布日期 |
1982.06.08 |
申请号 |
US19800186858 |
申请日期 |
1980.09.15 |
申请人 |
GROVE VALVE AND REGULATOR COMPANY |
发明人 |
CHOW, PETER C. M.;RINGER, WILLIAM N. |
分类号 |
F16K17/00;F16K7/07;F16K17/10;F16L55/045;F17D1/20;(IPC1-7):F16K31/12 |
主分类号 |
F16K17/00 |
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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