Two-chamber type regenerative catalytic organic waste gas purification device having back blowing function

Abstract

The invention discloses a two-chamber type regenerative catalytic organic waste gas purification device having a back blowing function. The two-chamber type regenerative catalytic organic waste gas purification device comprises a two-chamber type regenerative catalytic combustion device provided with a first regenerative catalytic reaction chamber and a second regenerative catalytic reaction chamber, wherein a gas inlet of the first regenerative catalytic reaction chamber and a gas inlet of the second regenerative catalytic reaction chamber are respectively connected with organic waste gas inlet pipes through a first valve and a third valve. The two-chamber type regenerative catalytic organic waste gas purification device further comprises a back blowing chamber and a fan, wherein the back blowing chamber is connected with the organic waste gas inlet pipes of the two-chamber type regenerative catalytic organic waste gas purification device through pipes, an exhaust port of the fan is communicated with the back blowing chamber through a pipe and a fifth valve and meanwhile is communicated with the atmosphere through a sixth valve, an air inlet of the fan is connected with a gas outlet of the first regenerative catalytic reaction chamber through a pipe and a second valve and is connected with a gas outlet of the second regenerative catalytic reaction chamber through a pipe and a fourth valve. The two-chamber type regenerative catalytic organic waste gas purification device is provided with the external back blowing chamber, waste gas 'short circuit' situations are decreased, purification rate is effectively improved, and the two-chamber type regenerative catalytic organic waste gas purification device is simple in structure, low in cost, easy to process and easy to control.

Description

Technical field [0001] The invention belongs to the technical field of air pollution control, and relates to an organic waste gas treatment device, in particular to a two-chamber heat storage catalytic purification device with a back blow function. Background technique [0002] Catalytic combustion is a widely used medium and high concentration organic waste gas purification technology. Its principle is to use a catalyst to oxidize and decompose volatile organic compounds into CO at a lower temperature. 2 And H 2 O, and the heat of reaction is released at the same time. The reaction temperature is usually 250~500℃. [0003] Generally, in the catalytic combustion process, the exhaust gas passes through a heat exchanger to increase the temperature, and then the temperature of the exhaust gas reaches the catalytic reaction temperature through electric heating or fuel combustion. The reacted gas passes through a heat exchanger to transfer heat to the unreacted gas. Due to the low heat...

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Problems solved by technology

However, due to the addition of a reaction chamber, the number of catalysts, heat storage bodies, valves, and pipelines increases, the control is more complicated, and the investment increases a lot.

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