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Four-way ball valve used for high-temperature easily-coking medium

A four-way ball and coking technology, applied to multi-way valves, valve details, valve devices, etc., can solve problems such as spring stuck, valves not working normally, and inability to perform elastic compensation

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 high-temperature coking medium, such as high-temperature coking oil, it is easy to produce coking in the valve seat assembly. The coked valve seat body will be bonded to the valve body, and the spring will also be stuck due to the coking of the medium. Dead, unable to play the role of elastic compensation, so that the ball core is prone to jamming, and the valve cannot work normally

Method used

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  • Four-way ball valve used for high-temperature easily-coking medium
  • Four-way ball valve used for high-temperature easily-coking medium
  • Four-way ball valve used for high-temperature easily-coking medium

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Embodiment Construction

[0019] Such as figure 1 , 2 As shown in , 3 and 4, a four-way ball valve used for high-temperature and easy-to-coke media includes a valve body 1, a valve stem 2, and a ball core 3, wherein the valve body 1 includes a valve body body 11, a valve cover 12, The valve body 1 is provided with a valve cavity 13, the ball core 3 is arranged in the valve cavity 13, one end of the valve stem 2 extends into the valve cavity 13 to link with the ball core 3, and the valve body 1 is provided with a main channel 14, Three lateral channels 15, 16, 17. The core 3 is provided with an "L"-shaped connecting channel 31. One end of the connecting channel 31 is always connected with the main channel 14. The three lateral channels 15 , 16, 17 and the valve cavity are provided with a valve seat assembly 4, the valve seat assembly 4 includes a valve seat body 41, an elastic member, the valve seat body 41 and the ball core 3 form a hard seal, the described Elastic member is bellows 42, certainly, el...

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Abstract

The invention relates to a ball valve used for a high-temperature easily-coking medium, in particular to a four-way ball valve used for the high-temperature easily-coking medium. The four-way 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 the ball core is arranged inside the valve cavity. The valve body is provided with a main channel and three side channels, and an L-shaped connection channel is arranged inside the ball core. A valve seat assembly is respectively arranged between the three side channels and the valve cavity, and each valve seat assembly comprises a valve seat body and an elastic piece. The valve body arranged between the three side channels 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. The valve body is provided with a first inflation channel communicated with the pressure-storage cavity. With the technical scheme, the four-way ball valve used for the high-temperature easily-coking medium can prevent the high-temperature easily-coking medium from influencing the 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 four-way ball valve used for high-temperature, easy-to-coke media. Background technique [0002] For medium with high temperature and solid particles, the currently used four-way ball valve generally includes a valve body, a valve stem, and a ball core. The valve cavity is linked with the ball core. The valve body is provided with a main channel and three side channels. The ball core is provided with an "L"-shaped connecting channel. One end of the connecting channel is always connected with the main channel. Through the valve rod, the ball core is driven to rotate, and the other end of the control connection channel is respectively connected or cut off with the three side channels. A valve seat assembly is arranged between the three side channels and the valve cavity. The valve seat The components all include a valve seat body, a spring, and a sealing gland. A hard seal is formed betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/087F16K27/06F16K41/02
Inventor 邱晓来王汉洲黄明金潘建瓯叶建伟
Owner CHAODA VALVE GRP
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