High performance pulse valve

A pulse valve and pulse technology, applied in the field of pulse valve, can solve problems such as valve pressure loss, and achieve the effect of improving reliability and performance

Inactive Publication Date: 2014-11-19
ALSTOM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the remaining walls of the cylindrical section restrict compressed air flow, causing significant valve pressure loss

Method used

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  • High performance pulse valve
  • High performance pulse valve
  • High performance pulse valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0011] figure 1 with figure 2 The prior art valve arrangement 10 shown in is used to pulse compressed air "CA" to a vertically arranged bag filter element (not shown) in a filtering device for cleaning contaminated gas. The valve arrangement 10 is installed in the pressure medium tank 12 via a circular opening 14 provided in the upper wall 16 of the tank 12. The tank 12 is a compressed air tank.

[0012] A vertical pressure tube 18 coaxial with the opening 14 extends through the lower wall 20 and into the inner region 22 of the tank 12. The upper end 24 of the pressure tube 18 is arranged a distance “D” below the opening 14. The upper end 24 of the pressure tube 18 forms a valve seat 24a, and the lower end 24b of the pressure tube 18 opens outside the tank 12 to be fluidly connected to an opening in a bag-shaped filter element (not shown).

[0013] The valve arrangement 10 has a valve housing 28 composed of two circular coaxial parts, namely an upper part 28a and a tubular lower...

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PUM

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Abstract

A pulse valve arrangement (210) includes a valve housing (228) on which is fixed a control valve. The valve housing (228) includes a circular cylindrical portion (228b) with a valve member (240) movably arranged therein. The valve chamber (228b) has an inlet (252) adapted to be connected to a pressure medium source (212) for allowing pressure medium to flow into the valve chamber (228b) and an outlet (218) through which pressure medium flows out of the valve chamber (228b). The control valve may be closed in which the outlet (218) of the valve chamber (228b) is moved to a closing position blocking the flow of pressure medium, or may be opened in which the outlet (218) of the valve chamber (228b) is moved to an opening position allowing a pulse of pressure medium therethrough. The valve member (240) within the valve housing (228) is freely displaceable within the circular cylindrical portion (228b) of the valve housing (228) based on the pressure within the valve chamber (228b) as controlled by the control valve.

Description

Technical field [0001] The invention relates to a pulse valve. More specifically, the present invention relates to a pulse valve for higher pressure compressed air pulses that can be used to clean filter elements in filter equipment used to clean contaminated gases. Background technique [0002] The known valve arrangement disclosed in U.S. Patent No. 5,533,706, which is incorporated herein by reference in its entirety, is used to pulse compressed air to filter elements, such as filter bags, in filtering equipment that can be used to clean contaminated gases. Pulses of compressed air are delivered to the inside of the filter element to clean the element by shaking and blowing loose dust clumps, which are attached to the wall of the filter element during the cleaning of polluted gas. For this purpose of cleaning the filter element, the known valve arrangement is mounted on the compressed air tank. The valve arrangement includes a valve housing having a cylindrical portion formin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/24F16K27/04B01D46/00F17C13/04
CPCF16K3/246F16K31/12B01D46/04F16K27/041B01D46/71
Inventor A.E.M.赫杰伯格R.S.安德斯森
Owner ALSTOM TECH LTD
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