Suction type dynamic contamination device

Abstract

The invention particularly relates to a suction type dynamic contamination device, which comprises a toxic gas tank, wherein an air tank is arranged on the right side of the toxic gas tank; a contamination cabinet is arranged on the right side of the air tank; an air pressure valve I is arranged at the upper end of the toxic gas tank; the air pressure valve I is connected to a gas flowmeter I; the gas flowmeter I is connected to an intake pipe; an air pressure valve II is arranged at the upper end of the air tank; the air pressure valve II is connected to a gas flowmeter II; the gas flowmeter II is connected to the intake pipe; a top plate is arranged at the upper end of the contamination cabinet; a state plate is arranged on the upper plane of a bottom plate of the contamination cabinet; a fan is arranged in the middle of the inner surface of a rear plate of the contamination cabinet; a gas detector is arranged on the right side of the inner surface of the rear plate of the contamination cabinet; a sealing plug II is arranged at the right part of the top plate; an exhaust pipe is connected to the sealing plug II; and the tail end of the exhaust pipe is connected to a tail gas treatment tank. The device is convenient to assemble and disassemble in use, the gas pressure is controlled by adopting the air pressure valve, the operation is convenient, the occupied space is small, the tail gas treatment tank is arranged at the tail end, and the discharged gas cannot pollute the atmosphere.

Description

technical field [0001] The invention belongs to the technical field of animal experiments, in particular to an inhalation-type dynamic poisoning device. Background technique [0002] There will be more toxic gases in the livestock and poultry houses, which will affect the health of animals and bring more and more diseases to animals. At present, animal husbandry has no way to effectively control these toxic substances, and many farms have not clearly understood the harm they bring to animals. Therefore, it is urgent to carry out research on the impact of gaseous toxic substances on animal health. [0003] Dynamic poisoning experiments are generally carried out in poisoning cabinets. According to whether the air in the poisoning cabinet is exchanged with the outside during the poisoning process, the poisoning cabinets can be divided into dynamic poisoning cabinets and static poisoning cabinets; dynamic poisoning cabinets Because the cabinet is constantly supplied with outsid...

AI Technical Summary

Problems solved by technology

[0004] At present, domestic dynamic inhalation poisoning technology is developing rapidly, and there has been great progress in automation control, but it is far from reaching a stable and mature stage, especially in the particle size of atomized particles, waste gas and wastewater discharge, changes in air pressure and interaction with laboratories. Relationships and other aspects need to be further improved

However, most of the poisoning devices are mainly used to study liquid samples, which are expensive and have many disadvantages. There are few devices for studying gases, and there are certain technical defects. They are not suitable for people to carry out more extensive research. An animal gas poisoning device disclosed in Chinese patent CN202426685 includes an inner cavity, an outer cavity, a first air intake pipe, a second air intake pipe, an exhaust pipe, a host computer control system, a temperature control system, a humidity control system, a pressure Differential control system, the first air intake concentration control system, and the second air intake concentration control system. The device is simple and fast to operate, and can greatly improve the experimental efficiency. However, the device is bulky and inconvenient to disassemble and disassemble, and the exhaust gas is not handled properly. , the experimental environment is single, the price is expensive, and it cannot be widely applied to people's research. In view of these shortcomings of existing technologies, we have designed an inhalation-type dynamic poisoning device, which uses gas tanks and air tanks to The toxic gas provided by the poison cabinet is easy to disassemble and assemble during use, and takes up less space. There is an exhaust gas treatment tank at the end to ensure that the exhausted gas will not pollute the atmosphere. Open field experiments and foraging experiments can be done by replacing the status board , compared with some existing devices on the market, the price is low, and this device can promote people's research on poisonous gases more widely.

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