Ball valve used for high-temperature easily-coking medium

A technology of coking and medium, applied in the direction of valve details, valve device, valve shell structure, etc., can solve problems such as spring stuck, valve not working normally, ball core stuck, etc.

Inactive Publication Date: 2012-12-26
CHAODA VALVE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, for some mediums that are easy to coke at high temperature, such as high-temperature coking oil, coking is likely to occur in the valve seat assembly on the inlet side, and the coked valve sea

Method used

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  • Ball valve used for high-temperature easily-coking medium
  • Ball valve used for high-temperature easily-coking medium
  • Ball valve used for high-temperature easily-coking medium

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Embodiment Construction

[0018] Such as figure 1 , 2 , 3, a ball valve used for high-temperature coking medium, including a valve body 1, a valve stem 3, a ball core 4, the valve body 1 is provided with a valve chamber 11, and the valve body 1 is provided with an inflow Channel 12, outflow channel 13, the ball core 4 is set in the valve cavity 11, one end of the valve stem 3 extends into the valve cavity 11 to cooperate with the ball core 4, the ball core 4 is provided with a connecting channel 41, the ball core 4 and the inflow channel 12. The inlet-side valve seat assembly 5 and the outlet-side valve seat assembly 6 are arranged between the outflow channels 13, wherein the valve body 1 includes a valve body body 18 and a valve cover 2, and the outflow channel 13 is set on the valve cover 2, the inlet-side valve seat assembly 5 includes a valve seat body 51 and an elastic member. The valve seat body 51 and the ball core 4 form a hard seal. The elastic member is a bellows 52. Of course, the elastic m...

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Abstract

The invention relates to a ball valve used for a high-temperature easily-coking medium. The ball valve used for the high-temperature easily-coking medium comprises a valve body, a valve rod and a ball core. A valve cavity is arranged inside the valve body, and an inflow channel and an outflow channel are arranged on the valve body. An inlet side valve seat assembly is arranged between the ball core and the inflow channel and comprises a valve seat body and an elastic piece. The valve body arranged between the inflow channel and the valve cavity is provided with an annular groove, the outer side end of the valve seat body extends to the inside of the annular groove, and a pressure-storage cavity is formed by enclosure of the outer side end of the valve seat body and the annular groove. An expansion clearance is reserved between the valve seat body and the valve body. One end of the elastic piece is abutted against the outer side end of the valve seat body, and the other end of the elastic piece is abutted against the bottom of the annular groove. The valve body is provided with a first inflation channel communicated with the pressure-storage cavity. With the technical scheme, the ball valve used for the high-temperature easily-coking medium can prevent the high-temperature easily-coking medium from influencing the inlet side valve seat assembly, and guarantee that a coking phenomenon of the valve seat body can not occur and working performance of the valve is stable.

Description

technical field [0001] The invention relates to the field of valves, in particular to a ball valve used for high-temperature, easy-to-coke media. Background technique [0002] For media with high temperature and solid particles, the ball valve currently used generally includes a valve body, a valve stem, and a ball core. The valve body is provided with a valve cavity, and the valve body is provided with an inflow channel and an outflow channel. In the valve chamber, one end of the valve stem extends into the valve chamber to cooperate with the ball core. There is a connecting channel on the ball core, and an inlet-side valve seat assembly and an outlet-side valve seat assembly are respectively installed between the ball core, the inflow channel and the outflow channel. The valve stem drives the ball core to rotate to control the conduction and cut-off of the connecting channel, the inflow channel and the outflow channel, wherein, the inlet-side valve seat assembly includes a...

Claims

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Application Information

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IPC IPC(8): F16K5/20F16K27/06F16K41/02
Inventor 邱晓来王汉洲黄明金潘建瓯叶建伟
Owner CHAODA VALVE GRP
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