Shielding device for automatically checking pressure resistance and leakage safety of poisoning cabin

Abstract

The invention provides a shielding device for automatically checking the pressure resistance and leakage safety of a poisoning cabin. The shielding device comprises a shielding cabin controlled by a computer controller, wherein a plurality of high-pressure spray heads are arranged in the shielding cabin provided with the poisoning cabin in the internal centre; liquid soap is sprayed to the outer surface of the poisoning cabin by the high-pressure spray heads before a poisoning experiment; the poisoning cabin is pressurized by the pressurization valve and the pressurization air pump of a positive pressure controller; safety routine check is automatically carried out on the pressure resistance and leakage of the poisoning cabin; the inner pressure of the poisoning cabin is displayed by a pressure resisting valve and a pressure resisting display instrument; the outer surface of the poisoning cabin is cleaned and wastewater is drained by a water drainage valve after the check; then a flow controller is adjusted and a poisoning valve is opened, then the experiment gas generated by a poisoning gas source is conveyed into the poisoning cabin according to the required concentration and flow to carry out a poison gas exposure experiment; the poison and harmful gases after the conclusion of experiment neutralization are exhausted to the outside through a poison discharge valve and a negative pressure fan. The shielding device provided by the invention has the beneficial effects that a shielding device for automatically checking the pressure resistance and leakage safety of a poisoning cabin is developed, and the problem of safely carrying an accurate poisoning experiment without leakage is solved.

Description

technical field [0001] The invention relates to a shielding device for automatically checking the pressure resistance and leakage safety of a poison exposure cabin. Background technique [0002] In the development of modern toxicology, corresponding toxicological experiments are often required in the identification and scientific research of certain chemicals and drugs. In the past, the poisoning experiment cabins used in toxicological experiments did not have the inspection of pressure resistance and gas leakage in the cabin. , in the experiment, if the pressure is too high, it will cause the cabin to rupture, deform or even explode. Similarly, some small leaks in the cabin will also cause harm to the experimenters. At the same time, the accuracy of the experimental data cannot be guaranteed, which greatly affects the scientific research. The quality and safety of experimental operations hinder the in-depth development of related research. In order to overcome the above dif...

AI Technical Summary

Problems solved by technology

[0002] In the development of modern toxicology, corresponding toxicological experiments are often required in the identification and scientific research of certain chemicals and drugs. In the past, the poisoning experiment cabins used in toxicological experiments did not have the inspection of pressure resistance and gas leakage in the cabin. , in the experiment, if the pressure is too high, it will cause the cabin to rupture, deform or even explode. Similarly, some small leaks in the cabin will also cause harm to the experimenters. At the same time, the accuracy of the experimental data cannot be guaranteed, which greatly affects the scientific research. The quality and safety of experimental operations hinder the in-depth development of related research. In order to overcome the above difficulties, fundamentally solve the problems of automatic, efficient, safe, accurate, and standard toxicology research and experiments, and meet the needs of large-scale scientific experiments and increasingly The more refined the sample quality requirements, the development of a shielding device that automatically checks the pressure resistance and leakage safety of the poisoned cabin has become an inevitable and urgent need

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