A graphite-sealed valve

A graphite seal and valve technology, applied in the field of pressure valves, can solve the problems of not including failure protection devices, failure protection in time, etc., and achieve the effect of high safety

Active Publication Date: 2021-12-31
ZHEJIANG ORCHID IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention designs a graphite-sealed valve to overcome the problem that the existing graphite-sealed valve does not contain a failure protection device and cannot perform failure protection in time after the valve fails

Method used

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  • A graphite-sealed valve
  • A graphite-sealed valve
  • A graphite-sealed valve

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Embodiment Construction

[0051] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0052] A graphite-sealed valve such as Figure 1~6 As shown, the graphite-sealed valve includes a valve body 1 and a valve cover 2. A valve casing 105 is formed on the outside of the valve body 1. The inside of the valve casing 105 has a hollow cavity 104. The valve casing 105 is provided with a Air port 101, exhaust port 102 and air discharge port 103, described air inlet 101, exhaust port 102 and air discharge port 103 communicate with described hollow cavity 104 respectively, in described air discharge port 103 and described hollow cavity 104 A graphite plug 4 is arranged at the joint of the graphite plug 4, and the gas discharge port 103 can be closed or opened by moving the graphite plug 4.

[0053] Further, an opening and closing co...

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PUM

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Abstract

The invention provides a graphite-sealed valve, which includes a valve body and a valve cover. A valve housing is formed on the outside of the valve body. The inside of the valve housing has a hollow cavity. The air inlet and the air discharge port, the air inlet, the exhaust port and the air discharge port are respectively connected with the hollow cavity, and a graphite plug is set at the connection between the air discharge port and the hollow cavity, and the hollow cavity is set An opening and closing control device and a failure protection device, the opening and closing control device can control the opening and closing of the gas discharge port by driving the graphite plug to move; after the opening and closing control device fails, the failure protection device can be controlled by The sleep state is switched to the wake-up state, and the failure protection device in the wake-up state can control the opening and closing of the gas discharge port by driving the graphite plug to move. The graphite-sealed valve of the present invention has high safety, simple structure, and convenient installation. , without interrupting production and so on.

Description

technical field [0001] The invention relates to the field of pressure valves, in particular to a graphite-sealed valve. Background technique [0002] The pressure valve is a valve that controls the opening and closing through pressure changes and realizes fluid control. It is widely used in industry, agriculture and daily life of residents. [0003] Generally, a pressure valve includes a valve body, a bonnet covered on the valve body, an inlet and an outlet arranged on the valve body, and a plug that can control the opening and closing of the inlet or outlet through the spring and the pressure change in the valve body ( Also known as spool). Among them, flexible graphite is widely used to prepare plugs because of its excellent high temperature stability, corrosion resistance, lubricity, and plasticity, which can greatly improve the sealing and durability of existing pressure valves. [0004] However, the existing pressure valves often have the following defects: first, aft...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/04F16K17/164F16K1/36F16K1/46F16K27/02F27B17/00C01B32/215C01B32/225
CPCF16K17/044F16K17/164F16K1/36F16K1/465F16K27/02C01B32/215C01B32/225F27B17/00
Inventor 张松平
Owner ZHEJIANG ORCHID IND CO LTD
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