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Slide powder-feeding three-way reversing valve

A three-way reversing valve and sliding technology, applied in multi-way valves, valve details, valve devices, etc., can solve the problems of difficult processing and maintenance of acute angle reversing two-position three-way powder reversing valves, etc. The effect of improving operation stability, improving work reliability and stability, and prolonging service life

Active Publication Date: 2012-12-12
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice shows that the acute-angle reversing two-position three-way powder reversing valve with this structure is more difficult to process and maintain.

Method used

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  • Slide powder-feeding three-way reversing valve
  • Slide powder-feeding three-way reversing valve
  • Slide powder-feeding three-way reversing valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] see figure 1 with Figure 4b In this embodiment, the sliding type powder feeding three-way reversing valve is provided with a columnar valve cavity in the valve body 1 of the three-way valve with one input and two outputs, and the valve located in the columnar valve cavity slides linearly along the columnar valve cavity. Double-channel cylindrical spool 2;

[0027] There are three valve body channels on the valve body 1, which are valve body inlet channel A, valve body outlet channel B and valve body outlet channel C; valve body outlet channel B is coaxial with valve body inlet channel A, and valve body outlet channel The outflow direction of B and the outlet channel C of the valve body forms an acute angle a, and the axes of the three valve body channels are on the same plane M;

[0028] The spool channel U and the spool channel V are correspondingly set in the columnar spool 2; the different positions of the linearly sliding columnar spool 2 in the columnar valve ca...

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Abstract

The invention discloses a slide powder-feeding three-way reversing valve which is characterized in that a columnar valve cavity is reserved in a valve body with one inlet and two outlets, a double-flow-passage columnar spool which can slide linearly along the columnar valve cavity is disposed in the same; a valve body inlet passage A, a valve body outlet passage B and a valve body outlet passage C are arranged on the valve body; the a valve body outlet passage B is coaxial with the valve body inlet passage A, an acute included angle a is formed by outflow directions of the valve body outlet passage B and the valve body outlet passage C, axis of each valve body passage is on a plane M; a spool passage U and a spool passage V are arranged in the columnar spool; and different positions of the columnar spool in the columnar valve cavity correspond to different on and off states. By the slide powder-feeding three-way reversing valve, operational stability of a powder feeding device is improved effectively and service life of the device is prolonged.

Description

technical field [0001] The invention relates to a sliding type powder feeding three-way reversing valve, more specifically a valve that can be used in the pressurized gasification process of dry coal powder to realize the switching flow of fluidized dry coal powder between different pipeline systems Two-position three-way powder reversing valve. Background technique [0002] During the pressurized gasification process of dry pulverized coal, the pulverized coal must always be driven by the carrier gas to switch between the circulating pipeline system and the coal feeding pipeline system that enters the gasifier through the burner for combustion and gasification in the form of air flow. . In the patent number: ZL2008 1 0018553.4, the disclosed "two-position three-way powder reversing valve" has a structural form of a three-way valve body with clearance fit and a cylindrical rotor, and the rotor is equipped with parallel double channels. Practice has shown that the acute ang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/07F16K27/04
Inventor 王渭施建设严春明王洁明友郑勤郝伟沙陈凤官
Owner CHINA PETROLEUM & CHEM CORP
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