Low-oxygen isolator

Abstract

The invention relates to a novel isolator capable of adjusting concentration of oxygen in a cabin. The isolator comprises a box body, an air exhaust system, an air intake system and a control system. The air exhaust system adopts an efficient filter; a pipeline is provided with a pneumatic on-off valve, and when leakage detection is performed on equipment, the pneumatic on-off valve is automatically closed; when the equipment is in a shutdown state, an air exhaust valve is closed, so that the box body can be prevented from contacting the outside world; the air flow mode of the air intake system is a turbulent flow mode and is divided into an air intake mode and a nitrogen intake mode which can be switched freely; an air intake port of the air intake system is provided with an manual butterfly valve used for adjusting the air exchange times of the equipment; a nitrogen intake system is divided into two air-intake paths; air-intake flow can be adjusted and monitored through a flowmeter; when nitrogen intake is in a single-path air-intake state, a weighing mode is realized, nitrogen flow enters the box body slowly and smoothly, and weighing is not influenced; and when nitrogen intake is in a double-path air-intake state, a replacement mode is realized, and oxygen content quickly drops to 5% and below. The isolator has an oxygen concentration adjustment function in the turbulent flow mode, and is suitable for being applied to the production of highly-toxic or highly-active products requiring lower oxygen concentration.

Description

technical field

[0001] The invention belongs to the field of isolator instruments, and relates to an isolator, especially a novel isolator which can adjust the oxygen concentration of the isolator cabin. production needs. Background technique

[0002] Recently, relevant studies have found that the onset age of the population is earlier, and the types of diseases and their occurrence and development are diversified. Therefore, more and more antineoplastic drugs, hormone drugs, antipsychotic drugs, and biotechnology drugs are continuously developed and gradually put into practice. in production. Therefore, the matching isolators are also widely put into actual production. Since highly active drugs such as antineoplastic drugs, hormone drugs, and biotechnology drugs have serious hazards in the production and operation of drugs, they have been identified as high-risk production operations by domestic and foreign experts. In view of this, it is necessary to equip isolators in ...

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