Phosphorus trichloride storage tank exhalation and inhalation air treatment device

Abstract

The invention discloses a phosphorus trichloride storage tank exhalation and inhalation air treatment device. The phosphorus trichloride storage tank exhalation and inhalation air treatment device comprises a phosphorus trichloride storage tank and an automatic control device, and further comprises an exhalation device and an inhalation device which are separately connected with the phosphorus trichloride storage tank through a first pipe and a second pipe. The phosphorus trichloride storage tank exhalation and inhalation air treatment device is simple, practical and convenient, and is low in cost; by the inhalation device, water in inhaled air of the storage tank is drained, and phosphorus trichloride in the storage tank is prevented from being polluted; by the exhalation device, the problem that air is discharged from the phosphorus trichloride storage tank in an unorganized manner is solved effectively, a field working environment is improved, and pressure for environmental protection is relieved; and by an exhalation automatic stop valve, moisture can be isolated from being in contact with the phosphorus trichloride, and therefore, the phosphorus trichloride is prevented from being polluted.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a breathing gas treatment device for a phosphorus trichloride storage tank. Background technique [0002] Phosphorus trichloride has a relative molecular weight of 137.33, a density of 1.574, a melting point of -112°C, and a boiling point of 76°C. It is a colorless and transparent liquid, soluble in benzene, ether, carbon disulfide, and carbon tetrachloride. Phosphorus trichloride undergoes a hydrolysis reaction when it meets water. Phosphorus trichloride can generate hydrochloric acid mist in the air, which can stimulate and corrode the skin and mucous membranes. [0003] When the temperature of the phosphorus trichloride storage tank changes and the material is transferred, the gas phase space in the storage tank will change in volume, resulting in a change in the gas pressure in the storage tank, which may cause the tank to collapse or explode. Since the phosphoru...

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Problems solved by technology

[0003] When the temperature of the phosphorus trichloride storage tank changes and the material is transferred, the gas phase space in the storage tank will change in volume, resulting in a change in the gas pressure in the storage tank, which may cause the storage tank to collapse or explode.

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