Anti-volatilization structure applicable to chemical liquid raw material barrel

Abstract

The invention discloses an anti-volatilization structure applicable to a chemical liquid raw material barrel, and relates to a barrel opening anti-volatilization structure for the chemical liquid rawmaterial barrel. An upper cover (1) is arranged on a barrel opening (8), an upper cylinder (4) is inserted into the barrel opening, a protruding ring (13) at the upper end of the upper cylinder (14) is pressed on the upper end face of the barrel opening, the upper end of a lower protruding pipe (5) is connected to an inner opening in a middle annular plate (16) arranged at the lower end of an upper cylinder cavity (14), the lower portion of a lifting cylinder (7) penetrates into the lower protruding pipe, a sealing ring A (6) is arranged at the lower end of the lifting cylinder, a lock ring (2) is arranged at the outer edge of the upper end of the lifting cylinder, the upper and lower ends of a spring (3) abut against the lock ring and the upper portion of the middle annular plate, a lowerplate (21) is arranged at the lower portion inside the lifting cylinder, and a filling hole (19) is formed between protruding strip gaps formed in the upper face of the lower plate; by means of the automatic sealing structure of the lifting cylinder, contact air can be reduced during filling, and the probability that chemical liquid raw materials make contact with air is effectively lowered.

Description

【Technical field】 [0001] The invention relates to a volatilization preventing structure of a barrel mouth of a chemical liquid raw material barrel, in particular the invention relates to a volatilization preventing structure suitable for a chemical liquid raw material barrel. 【Background technique】 [0002] It is known that various chemical reagents obtained during crude oil refining, among which chemical products such as butane, pentane, n-hexane, heptane, octane, petroleum ether, solvent oil and aromatic hydrocarbons need to be sold after production and acquisition, these products either have Volatile, flammable, explosive, or highly toxic; in view of this, it is necessary to use explosion-proof lighting and ventilation facilities in storage. It is even more forbidden to use mechanical equipment and tools that are prone to sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials, and when filling, there will...

AI Technical Summary

Problems solved by technology

The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials. When filling, there will be leakage and splashing when the filling tube is inserted into the bottle mouth, so a large amount of volatile gas accumulates in the air in the workshop, and more importantly, , for some high-purity products, once exposed to air for too long, the quality will decline

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