A low-pressure fuel gas filter online cleaning device

Abstract

The invention belongs to the technical field of filter cleaning devices, in particular to an online cleaning device for a low-pressure fuel gas filter, comprising a low-pressure fuel gas buffer tank and a fixed plate, the bottom of the low-pressure fuel gas buffer tank is equipped with a supporting arc plate, and supports A rotating shaft runs through the inside of the arc plate, and a fixed plate is provided on the side of the rotating shaft, the outer wall of the fixed plate is penetrated with a first bolt, the bottom of the supporting arc plate is equipped with a support rod, and the bottom of the support rod is provided with a bottom plate , and the inside of the bottom plate is provided with a regulating groove, the bottom of the low-pressure fuel gas buffer tank is connected with a fuel gas pipeline, and a bypass valve is installed at the end of the fuel gas pipeline, and a front end is provided below the bypass valve valve. The low-pressure fuel gas filter online cleaning device has the function of cleaning the filter online. The position of each support structure is easy to adjust and has a stable structure. It has a good valve sealing effect and is convenient for filter element disassembly and replacement.

Description

technical field [0001] The invention relates to the technical field of filter cleaning devices, in particular to an online cleaning device for low-pressure fuel gas filters. Background technique [0002] According to the requirements of coal chemical industry and power generation process, part of the fuel gas used for pulverized coal gasification device of aerospace furnace for coal grinding and drying comes from the purge gas of chemical workshop. In the actual operation process, this fuel gas often carries ammonia-containing purge gas. It is mixed with the methanol synthesis vent air of the joint workshop in the low-pressure fuel gas buffer tank of the gasification device, and the mixed gas is used for the hot blast stove. The methanol synthesis vent air contains CO2 gas, and CO2 and ammonia can react at room temperature to form Ammonium bicarbonate crystallizes, and the crystals enter the fuel gas pipeline of the hot blast stove along with the delivery of fuel gas, blocki...

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Problems solved by technology

[0005] The object of the present invention is to provide an online cleaning device for a low-pressure fuel gas filter, to solve the problem that the prior online cleaning device for a low-pressure fuel gas filter proposed in the above-mentioned background technology, similar products lack the function of better online cleaning filters, various The position of the support structure is not easy to adjust and the stability is poor, the sealing effect of the valve is poor, and it is not convenient to disassemble and replace the filter element

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