A breathing valve for sulfuric acid storage tank with drying function

Abstract

The invention discloses a sulfuric acid storage tank breathing valve with drying function, which comprises a first tank body, a second tank body is installed on one side of the first tank body, and a support is fixedly installed on the upper end of the first tank body Cover, the upper surface of the support cover and the second tank body are provided with sleeves, the top of the inner wall of the support cover is movably connected with a sealing top cover, one side of the first tank body and one side of the second tank body The sides communicate with each other through a connecting pipe, and an air flow path is formed between the outer side of the lower end of the support cover and the top end of the first tank body. A dehumidification mechanism is installed on one side of the first tank body, and the dehumidification mechanism is connected with the The two tanks are connected with the first tank through an air transmission pipeline. The invention enables the device to realize the functions of moisture absorption and material replacement through the internal structure of the device.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a breathing valve for a sulfuric acid storage tank with a drying function. Background technique [0002] Breathing valve refers to a valve that not only ensures that the storage tank space is isolated from the atmosphere within a certain pressure range, but also communicates with the atmosphere when it exceeds or falls below this pressure range. Its function is to prevent the storage tank from being damaged due to overpressure or vacuum. At the same time, it can reduce the evaporation loss of the storage liquid. It is mainly composed of a valve seat, a valve cover, a protective cover and two sets of opening and closing devices controlled by vacuum and pressure. The opening and closing device includes a valve disc, a guide rod, a spring, a spring seat and a seal. When the pressure in the tank reaches the rated exhalation positive pressure, the pressure valve disc opens ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a sulfuric acid storage tank breathing valve with drying function, to solve the problem that the sulfuric acid pipe breathing valve proposed in the background technology mentioned above, when in use, is in contact with chemical preparations for a long time, which will easily lead to large moisture. Affect the storage of sulfuric acid and cause corrosion to the valve body, but the replacement of the internal dehumidification material is troublesome and not convenient enough.

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