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An online maintenance gas pressure reducing valve

A pressure reducing valve, gas technology, applied in the direction of lift valve, balance valve, valve device, etc., can solve the problems of long operation time, high cost, gas pressure reducing valve does not have flow, pressure adjustment, etc., to save maintenance costs , The effect of saving working hours

Active Publication Date: 2020-12-11
HEBEI OUYINUO GAS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inspection and maintenance of the traditional gas pressure reducing valve usually requires closing the gas pipeline and dismantling the valve to facilitate maintenance. The operation time is long and the cost is high; in addition, the ordinary gas pressure reducing valve does not have flow and pressure adjustment Function

Method used

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  • An online maintenance gas pressure reducing valve
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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] see figure 1 , in an embodiment of the present invention, an on-line maintenance gas pressure reducing valve includes a valve body 1, an inlet connection nozzle and an outlet connection nozzle 2 are arranged on both sides of the valve body 1, and the inlet connection nozzle is connected to a nut 15; the valve body 1 A detachable bonnet 5 is arranged on the top, and an elastic diaphragm 6 is fixedly installed between the bonnet 5 and the valve body 1. Be...

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Abstract

The invention discloses an online maintenance gas pressure reduction valve. A valve body is included and provided with a detachable valve cover. An elastic membrane is fixedly arranged between the valve cover and the valve body. A lever is arranged below the elastic membrane and rotationally arranged on a support. One end of the lever is connected with a pull rod, and the bottom end of the pull rod penetrates through a sliding groove in the lever. The top end of the pull rod is fixedly connected with a rack, and an adjusting spring is arranged above the elastic membrane. A rotary fine adjustment rod is further arranged above the elastic membrane, and the bottom end of the fine adjustment rod is set to be of a gear structure engaged with the rack. Through the elastic membrane, the lever andthe adjusting spring, the effects of adjusting of output pressure and flow of the pressure reduction valve are achieved. Through the fine adjustment rod and the rack mechanism, the effect of accuratecontrol over the flow of inflow of control media into a valve body outlet cavity is achieved. A pressing mechanism is used for controlling valve clack seal, online overhauling is achieved, and operation work hours and the overhauling cost are saved.

Description

technical field [0001] The invention relates to a valve, in particular to an on-line maintenance gas pressure reducing valve. Background technique [0002] The pressure reducing valve is an important gas equipment installed on the angle valve of the liquefied gas cylinder to connect the angle valve and the rubber hose to reduce the output pressure and stabilize the output pressure. It has the advantages of simple structure, stable pressure, light weight, adjustable installation Convenience and other advantages. It is mainly composed of air inlet, air outlet, hand wheel, upper valve cover, lower valve cover, air inlet nozzle, breathing hole, upper air chamber, decompression chamber, valve pad, lever, rubber film, spring, adjusting screw plug and other components composition. [0003] The inspection and maintenance of the traditional gas pressure reducing valve usually requires closing the gas pipeline and dismantling the valve to facilitate maintenance. The operation time i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K1/32F16K17/30F16K27/08
CPCF16K1/00F16K1/32F16K17/30F16K27/08
Inventor 徐国华
Owner HEBEI OUYINUO GAS EQUIP
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