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Double safety valve

A double safety valve and valve body technology, applied in safety valves, valve devices, balance valves, etc., can solve the problems of complex structure and large volume of double safety valves, achieve quick replacement and maintenance, improve overall reliability, and save costs Effect

Active Publication Date: 2021-05-07
HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the technical problems that the whole safety valve needs to be disassembled for maintenance or replacement of the traditional safety valve, and the existing double safety valve has complicated structure and large volume, the present invention proposes a double safety valve

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Embodiment Construction

[0019] 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.

[0020] Such as figure 1 and figure 2 As shown, a double safety valve includes a valve body 3, an inlet flange 4 and an outlet flange 5 are arranged on the valve body 3, the inlet flange 4 is connected with the inlet joint 9, and the outlet flange 5 is connected with the outlet joint 8-phase connection, the inlet joint 9 and the outlet joint 8 are provided with a connecting flange 7, and the connecting flange 7 is connected with the inlet flange 4 or the outl...

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Abstract

The present invention proposes a double safety valve, which includes a valve body, an inlet flange and an outlet flange are arranged on the valve body, the inlet flange is connected with the inlet joint, the outlet flange is connected with the outlet joint, and the inlet joint passes through At least two groups of valve bodies arranged in parallel are connected with the outlet joints; the valve body is provided with a rotary sleeve, and a groove is provided in the rotary sleeve, and a valve is movable in the groove, and the valve is matched with the rotary sleeve through a spring. A vertical guide rod is provided and the vertical guide rod cooperates with the valve. The present invention has the advantages of compact overall structure design, light weight, high reliability, convenient and fast replacement and maintenance, even if a valve body fails, only the faulty valve body needs to be replaced, and the disassembly is convenient and cost-saving.

Description

technical field [0001] The invention relates to the technical field of low-pressure safety valves, in particular to a double safety valve. Background technique [0002] The safety valve is the most widely used safety device in pressure vessels and pressure piping systems to prevent the pressure from exceeding the allowable limit value and ensure the safe operation of the system. It is widely used in all walks of life in industrial production, and plays a very important role in the safe and reliable operation of equipment systems. [0003] The safety valve is a key part of the system. According to the operation experience of the safety valve, various failures will occur during the use of the safety valve. In order to improve its reliability, a redundant design method can be adopted. Using parallel double safety valves is an effective solution to improve its reliability. However, the current double safety valves are basically installed in one valve body. For the double safet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/06
CPCF16K17/06
Inventor 振前刘伟张启明张耀新张聪超张红涛吴盈志李萌周俊涛王敏
Owner HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
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