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A globe valve body with a partition structure

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

Active Publication Date: 2020-12-11
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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  • A globe valve body with a partition structure
  • A globe valve body with a 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 specifically discloses a valve body of a cut-off valve with a partition wall structure. The inside of the valve body is a middle cavity, the upper end is provided with an opening, and the two ends are respectively provided with an inlet channel and an outlet channel. A partition wall and a valve seat are provided inside the body, and the partition wall and the valve seat are fixedly connected as a whole, which divides the middle chamber into upper and lower parts, the lower middle chamber communicates with the inlet passage, and the upper middle chamber communicates with the above-mentioned inlet passage. The outlet channel communicates with the opening on the upper end of the valve body, and the center of the valve seat is provided with a communication hole. The partition wall changes the structure of the cavity, as well as the stress structure of the valve body and the valve seat, so that the inlet passage, the outlet passage and the middle chamber are connected to each other. The function of the partition wall is not only the support of the valve seat, but also the partition wall of the inlet and outlet channels of the valve body. The uneven stress of the valve body under the action of the axial force of the valve stem and the medium pressure can be controlled by adjusting the position and thickness of the partition wall to achieve reliable sealing of the valve seat and improve the service life of the valve body.

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 Patents(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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