High-integration oxygen generator adsorption tower upper cover air inlet and nitrogen discharge system

Abstract

The invention relates to a high-integration oxygen generator adsorption tower upper cover air inlet and nitrogen discharge system. The system is characterized by comprising the following elements which are sequentially arranged in the transverse direction in installation states: an air-inlet-end air inlet and nitrogen discharge integrated bin cover, nitrogen discharge silencing cotton, an adsorption tower upper cover, a pneumatic valve core of which the two ends are sleeved with an air-inlet-end pneumatic valve plate seal ring and a valve-end pneumatic valve plate seal ring, a valve-end air inlet and nitrogen discharge integrated bin cover and an electromagnetic valve; and a plurality of fastening screws are arranged on only one outer side surface. According to the invention, a pneumatic valve, a double-tower upper cover and a nitrogen discharge system can be fused and locked in a single direction in one step to form a whole, the assembling operation is extremely simple, and the production efficiency is improved; the connection of elements and pipelines between the adsorption tower upper cover and the nitrogen discharge part is reduced, thus reducing pressure loss and being beneficial to the miniaturization and high efficiency of an oxygen generator; and the membrane and the seal ring are combined into a whole, so that the assembling operation is simplified, and the inner connection parts are reduced, thereby reducing the sealing of the components. Thus, the invention can be widely used for the integrated manufacturing of the adsorption tower upper cover and the nitrogen discharge part of the oxygen generator.

Description

technical field [0001] The invention relates to parts of an oxygen generator, in particular to an air intake and nitrogen exhaust system for an upper cover of an adsorption tower of a highly integrated oxygen generator. Background technique [0002] In recent years, due to the rapid development of pressure swing adsorption (PSA) technology, the application field of pressure swing adsorption oxygen production is also becoming wider and wider. Pressure swing adsorption (PSA) air separation oxygen production technology is based on the difference in the adsorption capacity of medical zeolite molecular sieves to oxygen and nitrogen in the air under pressure to achieve the separation of oxygen and nitrogen. When the compressed air enters the sieve cylinder equipped with medical zeolite molecular sieve, nitrogen is adsorbed with strong adsorption capacity, but oxygen is not absorbed, so that a high concentration of oxygen can be obtained at the outlet end of the sieve cylinder. ...

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Problems solved by technology

[0003] At present, in the pressure swing adsorption (PSA) system, the pneumatic valve, the upper cover of the double tower, and the nitrogen exhaust system are connected through the airway pipeline. The structure is relatively scattered and the assembly is difficult. The pipeline is prone to displacement and affects the sealing effect, which is difficult to meet the use requirements.

[0004] In the prior art, the connection of the pneumatic valve on the upper cover of the oxygen generator, the upper cover of the double tower, and the nitrogen exhaust system is relatively scattered, which reduces the sealing and reliability of the system, and the installation is also relatively complicated.

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