Double discharge safety valve
A technology of safety valve and discharge hole, applied in the direction of safety valve, balance valve, valve device, etc., can solve the problems of loss and poor reliability of chemical and petrochemical equipment, and achieve the effect of improving reliability and eliminating insufficient discharge area.
Active Publication Date: 2016-11-30
PETROCHINA CO LTD +1
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Problems solved by technology
[0003] At present, all kinds of safety valves are composed of a group of process medium discharge mechanisms, and the reliability is poor. In this case, the failure of the safety valve due to various reasons will bring huge losses to the entire chemical and petrochemical plant.
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Embodiment Construction
[0050] see figure 1 , a dual-discharge safety valve provided by an embodiment of the present invention includes: a housing, a first shaft 3, a second shaft 2, a first spring mechanism, a second spring mechanism, a first connector 9, a second connector 10, The first valve disc 18 and the second valve disc 19; the lower end of the casing is sleeved on the valve nozzle 20; the first spring mechanism, the second spring mechanism, the first connector 9, the second connector 10, the first valve disc 18 and The second valve disc 19 is set inside the housing; the bottom of the first shaft 3 is fixedly connected to the top of the first coupling; the upper half of the second shaft 2 is plugged into the first shaft 3, and the lower half passes through the first connector 9 And the second connector 10 is fixedly connected with the second valve disc 19; the first spring mechanism is sleeved on the first shaft 3, and connected with the first valve disc 18 through the first connector 9; the ...
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The invention discloses a double-discharge safety valve. The lower end of a shell is connected to a valve nozzle in a sleeve way; the bottom of a first shaft is fixedly connected with the top of a first connector; the upper half part of a second shaft is inserted into the first shaft; the lower half part of the second shat passes through the first connector and a second connector, and is fixedly connected with a second valve disk; a first spring mechanism is connected to the first shaft in a sleeve way, and is connected with the first valve disk through the first connector; a second spring mechanism is arranged inside the second connector, and is connected to the second shaft in a sleeve way; the bottom of the second spring mechanism is fixedly connected with the second valve disk. According to the double-discharge safety valve provided by the invention, two independent discharge structures of the same displacement are realized by designing two sets of valve disks which can jump independently, so that the reliability of the safety valve is enhanced; meanwhile, the problem of insufficient discharge area is solved.
Description
technical field [0001] The invention relates to the technical field of valve production, in particular to a double discharge safety valve. Background technique [0002] The safety valve is the last barrier to ensure the safety of a chemical and petrochemical plant, and its importance is self-evident. The reliability of the safety valve structure itself is the basis for designing, manufacturing and operating the safety valve. Therefore, it is very necessary to improve the reliability of the safety valve structure. [0003] At present, all kinds of safety valves are composed of a group of process medium discharge mechanisms, and the reliability is poor. In this case, the failure of the safety valve due to various reasons will bring huge losses to the entire chemical and petrochemical plant. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a structurally more reliable double discharge safety valve. [0005] In ord...
Claims
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IPC IPC(8): F16K17/04
CPCF16K17/044
Inventor 文征陈萍胡健马明燕黄清鲁唐硕
Owner PETROCHINA CO LTD