Positive-pressure air seal by-pass valve with single-layer valve plate

A bypass valve, single-layer valve technology, applied in the direction of lift valve, valve device, dispersed particle filtration, etc., can solve the problems of complex valve structure, complex process, poor practical effect, etc., to achieve simple operation and maintenance, stable and reliable operation, simple structure

Pending Publication Date: 2017-12-01
DATANG ENVIRONMENT IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its valve structure is complicated, not only the valve plate adopts double-layer structure, but also the valve port has two layers of valve ports, inner and outer, which leads to complicated process in processing and production, and poor practical effect

Method used

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  • Positive-pressure air seal by-pass valve with single-layer valve plate
  • Positive-pressure air seal by-pass valve with single-layer valve plate
  • Positive-pressure air seal by-pass valve with single-layer valve plate

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Embodiment Construction

[0021] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. This implementation case is carried out on the premise of the technical method. It should be understood that the implementation case is to illustrate the present invention, but the protection scope of the present invention is not limited to the following implementation case.

[0022] see Figure 3-Figure 7 Shown: a positive pressure air seal bypass valve, the bypass valve includes a valve plate 3, an electric push rod 9 for boosting power, a high-pressure centrifugal fan 10 for auxiliary sealing, a guide mechanism 5, and a spring buffer mechanism 6 , the valve plate 3 is set in the dust-containing air duct 1 and the bypass air duct 12, the valve plate 3 is a single-layer structure, and has a vertically protruding annular side wall 16b on the valve plate bottom plate 16a; the valve port 2 has The bottom plate 17a of the valve port and the annular valve por...

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PUM

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Abstract

A positive-pressure air seal by-pass valve with a single-layer valve plate comprises the valve plate, an electric push rod for improving power and a high-pressure draught fan for assisting sealing, a guiding mechanism and a spring buffering mechanism. The valve plate is arranged in a dust containing air flue and a by-pass air flue, is of a single-layer structure and is provided with a valve plate bottom plate and a vertically-bulging annular side wall. A valve opening is provided with a valve opening bottom plate and a vertically-bulging annular valve opening body. The valve plate makes contact with the corresponding valve opening to form a relatively-closed valve chamber. The high-pressure draught fan communicates with the valve chamber formed by the valve plate and the valve opening. The positive-pressure air seal by-pass valve with the single-layer valve plate has the advantages that the structure is simple, compact and capable of achieving zero leakage, operation is stable and reliable, operation and maintenance are easy and convenient, and the applicability is high.

Description

technical field [0001] The invention belongs to the technical field of bag type dust removal, and in particular relates to a bypass valve installed in a bag type dust removal system. Background technique [0002] Bypass protection is to set a bypass valve on the inlet and outlet flue of the bag filter. When the temperature of the smoke exceeds the temperature range that the filter bag can withstand, or when the pressure difference of the filter bag is greater than the set value and cannot drop, the bypass valve will be activated. The valve is automatically opened, the inlet and outlet valves of the bag filter are closed, and the flue gas is directly discharged to the chimney through the induced draft fan. Therefore, the tightness of the bypass valve is very important, because as long as the bypass valve leaks a little, it will not take long for the sealing surface of the bypass valve to be seriously damaged, the leakage will increase significantly, the discharge will exceed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/20F16K1/36B01D46/02
CPCF16K1/2042B01D46/023F16K1/36
Inventor 啜广毅王铁军张彦婷孙钰
Owner DATANG ENVIRONMENT IND GRP
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