Device for safe replacement and purging of pipelines of liquefying device

Abstract

The invention discloses a device for safe replacement and purging of pipelines of a liquefying device. The device comprises a filter box bottom plate and a device placing bottom plate, wherein the device placing bottom plate is arranged on one side of the filter box bottom plate; universal moving wheels are installed on the lower surfaces of the filter box bottom plate and the device placing bottom plate; an air compressor placing box is installed on one side, close to the filter box bottom plate, of the upper surface of the device placing bottom plate; an air compressor box cover is installedon the front surface of the air compressor placing box; the air compressor placing box is connected with a refrigeration dryer through a pressurizing connecting pipe; the front surface of the refrigeration dryer is connected with an air storage tank through a high-pressure gas pipe; a mounting bottom plate is installed on one side, deviating from the filter box bottom plate, of the upper surfaceof the device placing bottom plate; and a purging filter box is arranged in the middle of the upper surface of the filter box bottom plate. According to the equipment for safe replacement and purgingof the pipelines of the liquefying device, the filter box bottom plate and the device placing bottom plate can independently move, so that purging and cleaning work of the pipelines with different lengths is carried out.

Description

technical field [0001] The invention relates to the technical field of equipment for safe replacement and purging of pipelines, in particular to equipment for safe replacement and purging of pipelines in liquefaction plants. Background technique [0002] Liquefaction refers to the process of changing a substance from a gaseous state to a liquid state, which will release heat to the outside world. There are two ways to achieve liquefaction, one is to reduce the temperature, and the other is to compress the volume. The critical temperature is the highest temperature at which the gas can be liquefied. The volume will become one thousandth of the original volume, which is convenient for storage and transportation. Therefore, in reality, some gases are usually liquefied. Since the critical points of these two gases are relatively high, they can be turned into liquids when pressurized at room temperature. Other gases such as hydrogen and nitrogen have a very low critical point, an...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a device for safe replacement and purging of the liquefaction device pipeline, which can conveniently perform purging work inside the liquefaction device pipeline, and can perform purging of liquefaction pipelines of different lengths. After that, the advantages of filtering the gas through the filter assembly can be used to solve the problem that the current pipeline cleaning requires the staff to clean it manually, which is very troublesome and inconvenient to operate.

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