A cylinder-type molecular sieve compression system for a medical oxygen generator and its application method

Abstract

The invention discloses an air cylinder type molecular sieve compression system for a medical main oxygen generator and an application method of the compression system. The air cylinder type molecular sieve compression system is characterized by comprising an adsorption tower blind flange, a cylinder block, a piston and a one-way stop valve, wherein the adsorption tower blind flange is fixedly connected with the cylinder block; a transfer bar is arranged on the adsorption tower blind flange; the piston is arranged at the upper part of the inner side of the cylinder block; the transfer bar is in transmission connection with the piston; a piston rod and a aeration conduit are arranged above the cylinder block; the piston rod is connected with the piston; a stop block is arranged on the piston rod; the one-way stop valve is connected with the aeration conduit; a pressure gauge is arranged on the one-way stop valve and connected with the one-way stop valve; an alarm limit switch is arranged between the piston rod and the aeration conduit. According to the air cylinder type molecular sieve compression system disclosed by the invention, the compressed air in the adsorption tower can be utilized to dynamically compress a carbon molecular sieve; the limit switch can be utilized to control the position of the piston rod, so as to control the operating stroke of the molecular sieve.

Description

technical field [0001] The invention relates to a cylinder-type molecular sieve pressing system for a medical oxygen generator main engine and a method for using the same. Background technique [0002] The medical molecular sieve oxygen production system uses an air compressor to pressurize the air. After degreasing and water purification, it enters the compressed air storage tank, and then absorbs nitrogen molecules through the molecular sieve adsorption tower, and the remaining oxygen molecules are sent to the oxygen storage tank. At this time The oxygen concentration has reached more than 90%. After aseptic treatment, it can reach the medical oxygen standard. Then, the nitrogen molecules adsorbed by the molecular sieve are desorbed and released by decompression, and wait for the next working cycle. Repeat this way, disconnect and generate medical oxygen. Its characteristics are: : Pure physical oxygen production method, good safety, ready to use, but needs power supply, h...

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Problems solved by technology

[0002] The medical molecular sieve oxygen production system uses an air compressor to pressurize the air. After degreasing and water purification, it enters the compressed air storage tank, and then absorbs nitrogen molecules through the molecular sieve adsorption tower, and the remaining oxygen molecules are sent to the oxygen storage tank. At this time The oxygen concentration has reached more than 90%. After aseptic treatment, it can reach the medical oxygen standard. Then, the nitrogen molecules adsorbed by the molecular sieve are desorbed and released by decompression, and wait for the next working cycle. Repeat this way, disconnect and generate medical oxygen. Its characteristics are: : Pure physical oxygen production method, good safety, ready to use, but needs power supply, high noise, oxygen purity 90% ~ 96%, low operating cost, but high equipment purchase cost, a few things to pay attention to Problem In practical application, although the average hospital oxygen consumption is less than the rated oxygen production capacity of the medical molecular sieve oxygen production system, it is often necessary to supplement oxygen to the central oxygen supply system to maintain the oxygen supply. This is because there is no Fully consider the working characteristics of the molecular sieve oxygen generator, the oxygen generation capacity of the system is selected too small, and the development of the hospital is not considered

[0003] The medical molecular sieve central oxygen production system adopts the international advanced PSA pressure swing adsorption oxygen production technology. It uses air as raw material and zeolite molecular sieve as adsorbent to form a cycle process of pressure adsorption and decompression desorption to separate oxygen and nitrogen in the air. , the process is a physical adsorption process without chemical reaction, and its safety and environmental protection are ideal oxygen supply methods to realize the modern management of the medical system. The medical molecular sieve oxygen generation system uses zeolite molecular sieve as the adsorbent. The oxygen production capacity of the medical molecular sieve oxygen production system is greater than that of the medical pressure adsorption method, and the ambient air is used as the raw material for the peak value of the actual oxygen demand. It is completely different from the oxygen cylinder group and liquid oxygen supply. The increase in the amount of oxygen used in the hospital during the year can avoid the situation that the hospital’s development requires familiarity with its working principle and its performance characteristics, so that the oxygen supply of the Kecheng oxygen generator can be made in the scheme design. The existing oxygen generator has no In this system, after the molecular sieve in the adsorption tower is pulverized, the number of molecular sieves gradually decreases, resulting in a decrease in oxygen concentration and insufficient flow

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