Gas distribution device

Abstract

The invention provides a gas distribution device which comprises a transition section and distribution plates, wherein the transition section is provided with a gas inlet and a gas outlet; the transition section is internally provided with one distribution plate or a plurality of distribution plates arranged at intervals; the plurality of distribution plates arranged at intervals are sequentially distributed in a direction from the gas inlet to the gas outlet; the edge of each distribution plate is connected with an inner wall of the transition section; the distribution plates are provided with a plurality of through holes; windblown mine gas enters into the gas distribution device through the inlet of the gas distribution device; the on-way resistance of the windblown mine gas along the cross section can be preliminarily adjusted by use of the through hole in the distribution plate adjacent to the gas inlet section; then the windblown mine gas enters into the through holes in the other distribution plates, so that the on-way resistance of the windblown mine gas along the cross section can be adjusted again, the flow velocity of the gas along the cross section of the gas distribution device is uniform, and thus the purpose of enabling the gas to enter an oxidation device so as to flow uniformly is achieved.

Description

technical field [0001] The invention relates to the technical field of wind exhaust gas, in particular to a gas distribution device. Background technique [0002] Every year, the methane emitted by wind and gas exhaust from coal mines in China is about 20 billion cubic meters. Due to the low concentration of methane in wind exhaust gas, it cannot be ignited by conventional methods. Therefore, wind exhaust gas has not been effectively utilized for a long time, but is directly discharged into the atmosphere. [0003] The regenerative oxidation method is to maintain the temperature required for oxidation by accumulating the heat released after the oxidation of methane in the wind exhaust gas in the flow direction shift reactor, so that methane can be continuously oxidized. After oxidation, the heat can be used for heating or steam generation. This method not only reduces greenhouse gas emissions, but also uses the wasted gas as a clean resource. [0004] Regardless of the th...

AI Technical Summary

Problems solved by technology

The disadvantage of this device is that the structure is complex and heavy, and it is difficult to ensure the effect of uniform gas distribution; and from the structure, it is not clear how the wind exhaust gas gathers on the small section of the inlet, how to quickly disperse and evenly along the section after entering the oxidation device distribution; the patent only gives the implementation scheme on the 500×600mm cross-section, which is difficult to scale up and apply to large-scale oxidation devices

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