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Internal cavity pressure limiting valve

A technology of pressure limiting valve and inner cavity, which is applied in the structural field of inner cavity pressure limiting valve, can solve problems such as little effect, damage to pressure limiting valve, and reduced service life

Inactive Publication Date: 2009-05-20
杨克庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process will cause very large valve body vibration and pressure jitter, which will damage the pressure limiting valve, reduce its service life, and cause noise
Although the current existing technology has carried out various improvements to this phenomenon, the effect is very small.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In the first embodiment, the inner cavity is a straight-through structure with a single valve port and a single blocking member. Such as figure 1 As shown, there is a water inlet 1-1 and a water outlet 1-7 on the valve body 1-2, the water inlet 1-1 communicates with the inner cavity 1-6, and the inner cavity 1-6 is a straight-through structure, with an upper , the lower two straight openings, the control rod assembly 1-5 is a through rod in this embodiment, passing through the cavity of the inner cavity 1-6, the lower end is connected with the blocking member 1-9, and the middle position is fixedly connected with a belt The upper end of the piston 1-8 of the sealing ring is fixedly connected with the pressure limiting assembly 1-3, the pressure limiting assembly 1-3 is fixedly connected with the valve body 1-2, and the top of the pressure limiting assembly 1-3 supports the spring 1-4 (of course, Also can be provided with spring on the control lever assembly, or both ar...

Embodiment 2

[0025] In the second embodiment, the inner cavity is a straight-through structure with double valve ports and double blocking parts. Such as figure 2As shown, there is a water inlet 2-1 and a water outlet 2-7 on the valve body 2-2, the water inlet 2-1 communicates with the inner cavity body 2-6, and the inner cavity body 2-6 has two straight openings up and down, The control rod assembly 2-5 is also a through rod, passing through the cavity of the inner cavity 2-6, the lower end is connected with the blocking piece 2-9, and the middle position is also fixedly connected with a blocking piece 2-8, and the upper end is connected with the pressure limiting assembly 2-3 is fixedly connected, the pressure limiting component 2-3 is fixedly connected with the valve body 2-2, and the pressure limiting component 2-3 supports the spring 2-4 above. Among them, the blocking part 2-8 is located inside the upper opening of the inner cavity 1-6, and the upper opening of the inner cavity 2-6...

Embodiment 3

[0028] The inner cavity of the third embodiment of the present invention is another straight-through structure with a single valve port and a single blocking member. Such as image 3 As shown, there is a water inlet 3-1 and a water outlet 3-7 on the valve body 3-2, the water inlet 3-1 communicates with the inner cavity body 3-6, and the inner cavity body 3-6 has two straight openings up and down, The control rod assembly 3-5 is arranged on the outside of the inner cavity 3-6, and its bottom end is provided with a blocking member 3-9, and the blocking member 3-9 is located outside the lower opening of the inner cavity 3-6. The upper end of -5 is provided with a protruding rod, which supports or is fixedly connected with a pressure-sensitive component 3-8. —6 The upper opening is fixedly connected; the upper end of the control rod assembly 3-5 is also provided with an upper extension rod, which is supported or fixedly connected with the pressure limiting assembly 3-3 to form a ...

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Abstract

The present invention relates to an internal cavity type pressure-limiting valve. It includes a valve body containing internal cavity, on the described valve body a water inlet and a water outlet are set, said water inlet and water outlet are communicated with said internal cavity to form a water flow channel. In the internal cavity of said valve body a pressure-limiting component is set, said pressure-limiting component is fixedly connected with control bar component, on the control bar component a blocking component is set, said blocking component can be used for blocking water flow.

Description

【Technical field】 [0001] The invention relates to a structure of a pressure-limiting valve used on fluid pipelines such as gas or liquid, in particular to a structure of an inner-cavity pressure-limiting valve. 【Background technique】 [0002] In the prior art, if the fluid pressure on the fluid pipeline is to be controlled within a certain pressure range, it is necessary to install a pressure limiting valve at the front end of the pipeline. The existing pressure limiting valve structure includes a valve body on which a There is a water outlet and a water inlet. There is a sealing water port in the channel between the water outlet and the water inlet. A control rod assembly that can block the water sealing port is fitted on the water inlet end of the sealing water port. The control rod assembly passes through the water sealing port. The sealing water port is fixedly connected with the pressure-limiting diaphragm assembly, and a spring is arranged above the pressure-limiting d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/00
Inventor 杨克庆
Owner 杨克庆
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