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a safety valve

A safety valve and valve seat technology, applied in the field of safety valves, can solve problems such as inconvenient assembly, high production cost and use cost, and short service life, and achieve the effects of stable work, simple structure, and convenient assembly

Active Publication Date: 2017-06-20
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing safety valve has a complex structure, is not easy to manufacture on a large scale, and is inconvenient to assemble, and requires high installation accuracy. At the same time, the service life is short, and frequent maintenance, repair and replacement are required, and the production cost and use cost are higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 of the present invention: a safety valve, including a valve seat 1, a valve body 2, a connecting plate 3 and a valve casing 4, the valve seat 1 is a tubular structure, and a first through hole 5 is provided in the middle, that is, the first through hole 5 The hole 5 is set at the geometric center of the valve seat 1, the valve body 2 is a solid structure, and the middle part is provided with a second through hole 6, that is, the second through hole 6 is set at the geometric center of the valve body 2, and the valve body 2 is inserted into the valve body. Inside the seat 1, a spring 7 is arranged symmetrically at both ends of the valve seat 1, and the spring 7 can be fixed on the valve seat 1 by a pin, and the valve body 2 is located at the center of the valve seat 1 under the action of the spring 7, and the first through hole 5 and the second The centerlines of the two through holes 6 coincide, at this time the valve body 2 is in a balanced position, the val...

Embodiment 2

[0030] Embodiment 2 of the present invention: a safety valve, including a valve seat 1, a valve body 2, a connecting plate 3 and a valve housing 4, the valve seat 1 is a tubular structure, and a first through hole 5 is provided in the middle, that is, the first through hole 5 The hole 5 is set at the geometric center of the valve seat 1, the valve body 2 is a solid structure, and the middle part is provided with a second through hole 6, that is, the second through hole 6 is set at the geometric center of the valve body 2, and the valve body 2 is inserted into the valve body. Inside the seat 1, a spring 7 is arranged symmetrically at both ends of the valve seat 1, and the spring 7 can be fixed on the valve seat 1 by a pin, and the valve body 2 is located at the center of the valve seat 1 under the action of the spring 7, and the first through hole 5 and the second The centerlines of the two through holes 6 coincide, at this time the valve body 2 is in a balanced position, the va...

Embodiment 3

[0035] Embodiment 3 of the present invention: a safety valve, including a valve seat 1, a valve body 2, a connecting plate 3 and a valve housing 4, the valve seat 1 is a tubular structure, and a first through hole 5 is provided in the middle, that is, the first through hole 5 The hole 5 is set at the geometric center of the valve seat 1, the valve body 2 is a solid structure, and the middle part is provided with a second through hole 6, that is, the second through hole 6 is set at the geometric center of the valve body 2, and the valve body 2 is inserted into the valve body. Inside the seat 1, a spring 7 is arranged symmetrically at both ends of the valve seat 1, and the spring 7 can be fixed on the valve seat 1 by a pin, and the valve body 2 is located at the center of the valve seat 1 under the action of the spring 7, and the first through hole 5 and the second The centerlines of the two through holes 6 coincide, at this time the valve body 2 is in a balanced position, the va...

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Abstract

The invention discloses a safety valve, which includes a valve seat (1), a valve body (2), a connecting plate (3) and a valve shell (4). The valve seat (1) is a tubular structure with a first passage provided in the middle. hole (5), the valve body (2) is a solid structure, and a second through hole (6) is provided in the middle. The valve body (2) is inserted inside the valve seat (1), and the two ends of the valve seat (1) are symmetrically arranged. There is a spring (7), and the valve seat (1) is fixed in the valve housing (4) through the connecting plate (3). This invention uses the hydraulic pressure difference generated at both ends of the safety valve to cause the valve body to slide in the valve seat when a fluid leakage occurs to cut off the flow of fluid and play a role in safety protection. It has a simple and compact structure, convenient assembly and long service life. Easy maintenance and replacement, low production cost.

Description

technical field [0001] The invention relates to a safety valve, in particular to an emergency shut-off safety valve, which belongs to the technical field of safety valves. Background technique [0002] Safety valves are widely used in power generation, oil refining, chemical equipment and instrumentation, especially in liquid pipelines. When the pipeline bursts or the equipment fails and the fluid leaks out, the safety valve can automatically close the valve and cut off the flow of the fluid, so as to prevent a large amount of flammable, explosive or toxic and harmful fluid from flowing out, reducing the damage to human health and the natural environment. pollution, while reducing the loss of enterprises and reducing the waste of resources. [0003] The existing safety valve has a complex structure, is not easy to manufacture on a large scale, and is inconvenient to assemble, and requires high installation accuracy. At the same time, the service life is short, and frequent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/30F16K27/00
CPCF16K17/30F16K27/00
Inventor 于丁文
Owner NORTHEASTERN UNIV LIAONING