Dust suction apparatus of inner tank of low-temperature storage tank

Abstract

The invention discloses a dust suction apparatus of an inner tank of low-temperature storage tank, which comprises a dust suction tube which can also be used as a dust-containing gas channel, compressed gas can be introduced into the dust suction tube; the front end of the dust suction tube is connected with a dust absorbing string bag used for absorbing dust and filtering, and the other end of the dust suction tube is connected with a dust suction hose used as a dust suction head; the dust suction tube is provided with a notch which extends in the axial direction of the dust suction tube; and the notch is provided and connected with a compressed gas tube which can be used for inputting the compressed air to enter the dust suction tube and sucking dust depending on a pressure difference formed in the front and back parts of flowing gas. The dust suction hose is a corrugated hose made of stainless steel, and can be moved by hand-hold and flexibly and conveniently put into the inner tank or various narrow spaces to suck the dust. The dust suction apparatus has the advantages of simple structure, novel design, good dust suction property, abrasion resistance, flexibility and capability of free bending, extension and contraction.

Description

technical field [0001] The invention relates to a dust collection device, in particular to a dust collection device for a low-temperature liquid storage tank, in particular to a dust suction device for an inner tank of a low-temperature storage tank. Background technique [0002] The inner tank of the low-temperature storage tank is a low-temperature liquid special storage device for storing low-temperature liquid nitrogen, liquid oxygen, liquid argon and liquid carbon dioxide. With the development of my country's industry, the demand for liquid gas is also increasing. Its development The application prospect is also very broad, so the quality requirements for the inner tank of the storage tank are also very high. The cryogenic storage tank is generally a double-layer sealed structure assembled from an inner tank and an outer shell. The inner tank is provided with an air inlet and outlet. After people complete the welding process of the inner tank of the storage tank, there w...

AI Technical Summary

Problems solved by technology

The cryogenic storage tank is generally a double-layer sealed structure assembled from an inner tank and an outer shell. The inner tank is provided with an air inlet and outlet. After people complete the welding process of the inner tank of the storage tank, there will often be residual gas A certain amount of grinding iron powder, welding slag and other sundries will easily cause gas blockage and blockage of valves and pipelines after canning liquid gas, which will bring great danger to future work and seriously affect the storage tank. The safety of the tank also reduces the quality of the gas, and because the tank in the storage tank is fully sealed, it is not only difficult to disassemble and clean, but also causes gas leakage and increases the cost burden. expected

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