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Stop valve body with partition structure

A globe valve and valve body technology, applied in the valve shell structure, valve details, valve device and other directions, can solve the problems of stress seal leakage, shorten the service life of the valve body, etc., and achieve the effect of reliable valve seat sealing and improved service life.

Active Publication Date: 2018-12-07
SUFA TECH IND CNNC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resulting uneven stress eventually leads to seal leakage and shortens the service life of the valve body

Method used

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  • Stop valve body with partition structure
  • Stop valve body with partition structure

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Embodiment Construction

[0020] The present invention will be further described below by means of the accompanying drawings and specific embodiments.

[0021] Such as figure 1 As shown, the inside of the valve body is a middle cavity 3, the upper end of the valve body is processed with an opening, and the two sides of the valve body are respectively processed with an inlet channel 1 and an outlet channel 2.

[0022] A partition wall and a valve seat 5 are processed inside the valve body. The partition wall and the valve seat 5 are fixedly connected as a whole, which divides the interior of the valve body into two parts. The outlet channel communicates with the opening at the upper end of the valve body.

[0023] There is a hole in the center of the valve seat 5, through which the inlet channel 1 and the outlet channel 2 in the valve body are communicated.

[0024] The overall structure composed of the partition wall and the valve seat 5 is further described.

[0025] The valve seat 5 divides the pa...

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Abstract

The invention belongs to the technical field of valve bodies, and particularly discloses a stop valve body with a partition structure. The inner portion of the stop valve body is provided with a middle cavity, an opening is formed in the upper end of the stop valve body, an inlet channel and an outlet channel are formed in the two ends of the stop valve body, a partition and a valve seat are arranged inside the valve body and are fixedly connected into a whole to divide the middle cavity into an upper part and a lower part, the lower part of the middle cavity communicates with the inlet channel, the upper part of the middle cavity communicates with the outlet channel and communicates with the opening in the upper end of the valve body at the same time, and a communicating hole is formed inthe center of the valve seat. The cavity structure and the stress structure of the valve body and the valve seat are changed by the partition, so that the inlet channel, the outlet channel and the middle cavity are connected. The partition can serve as a valve seat support or an isolating wall of the inlet channel and the outlet channel of the valve body. The stress of the valve body is not evenunder the action of the axial force of a valve rod and the medium pressure, control can be carried out by adjusting the position and the thickness of the partition, and the aims of enabling the valveseat to be reliably sealed and prolonging of the service life of the valve body are achieved.

Description

technical field [0001] The invention belongs to the technical field of valve bodies, and in particular relates to a shut-off valve body with a partition wall structure. Background technique [0002] The usual stop valve body is formed by connecting three independent cavity structures, the inlet passage, the outlet passage and the middle chamber, and the middle chamber has a valve seat. The wall thickness of the valve body, that is, the wall thickness of the inlet channel, the outlet channel and the cavity is equal. Although the wall thickness is equal, the stress around the valve body and seat is not the same. The deformation of parts with higher stress is also larger, and the deformation of parts with lower stress is also smaller. Such stress and deformation changes are caused by the structure of the valve body, and equal wall thickness and independent channels are one of the reasons. The resulting uneven stress eventually leads to seal leakage and shortens the service li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K27/00
CPCF16K27/00
Inventor 施进伟杨雪华吴小康徐兴华虞戈
Owner SUFA TECH IND CNNC
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