Online cleaning device for low-pressure fuel gas filter

Abstract

The invention belongs to the technical field of filter cleaning devices and especially relates to a cleaning device, in particular to a low-pressure fuel gas filter online cleaning device. The devicecomprises a low-pressure fuel gas buffer tank and a fixed disc, a supporting arc plate is mounted at the bottom of the low-pressure fuel gas buffer tank; a rotating shaft penetrates through the interior of the supporting arc plate; a fixing plate is arranged on the side of the rotating shaft; a first bolt penetrates through the outer wall of the fixed plate; a supporting rod is installed at the bottom of the supporting arc plate, a bottom plate is arranged at the bottom of the supporting rod, an adjusting groove is formed in the bottom plate, a fuel gas conveying pipeline is connected to the bottom of the low-pressure fuel gas buffer tank, a bypass valve is installed at the end of the fuel gas conveying pipeline, and a front end valve is arranged below the bypass valve. The on-line cleaning device for the low-pressure fuel gas filter has the function of cleaning the filter on line, the positions of the supporting structures are convenient to adjust, the supporting structures are provided with stable structures, the good valve sealing effect is achieved, and the filter element is convenient to disassemble, assemble and replace.

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...

AI Technical Summary

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

Images