Medical molecular sieve oxygen generation system pretreatment device

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a medical molecular sieve oxygen generation system pretreatment device which comprises a first water-steam separator and a second water-steam separator which are connected with a shell-and-tube heat exchanger through a first pneumatic three-way valve, connected with an air inlet of a filter box through a third pneumatic three-way valve, and connected with a snakelike heat exchange pipe installed in a cold water storage tank through a drain valve set; a frame bag type filter is fixedly arranged on the inner sides of an upper fixing frame, a middle fixing frame and a lower fixing frame which are installed in the filter box, and a pressing handle assembly and an access door are rotationally installed on the box body above the frame bag type filter. A plurality of pneumatic three-way valves are arranged, so that the system can continuously generate oxygen while automatically draining water, condensate water is reutilized to reduce the refrigeration power consumption and the heating value of a refrigerating unit, the continuous oxygen generation capacity of the system is prolonged, the frame bag type filter is quick to assemble and disassemble, and the downtime required for replacing the filter can be effectively shortened.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a pretreatment device for a medical molecular sieve oxygen production system. Background technique [0002] In my country, the medical central oxygen system belongs to the second class of medical device products according to the provisions of the "Medical Device Classification Catalog". It is an oxygen production technology that uses the principle of pressure swing adsorption to separate oxygen from nitrogen and other inert gases in the air through oxygen molecular sieves. After nearly 20 years of development, this product has been widely used in health services and medical fields in my country. Widely promoted and used. However, compared with the oxygen generators imported from developed countries such as France and the United States, the oxygen generators independently produced by domestic manufacturers are far behind in terms of performance stability, oxy...

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Problems solved by technology

During the operation of the main oxygen generator, the molecular sieve is easy to pulverize and the adsorption efficiency is extremely low. The main oxygen generator independently produced by the domestic manufacturer takes 1m3 qualified oxygen, and requires an adsorption sieve bed with a volume of 0.05m3, filled with 25-28 kg molecular sieve and 16.8 m3 of compressed air, the cost of oxygen production is quite high

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