System for simultaneously producing nitrogen and enriched oxygen

Abstract

The invention discloses a system for simultaneously producing nitrogen and enriched oxygen, which comprises an air compressor, an air filtering assembly, an oxygen-edriched gas point, an air separation adsorption device and a nitrogen gas point, and is characterized in that the air compressor is in gas communication with the air filtering assembly through a compressed gas conveying pipe; a pipeline filter, a freeze dryer, a fine filter and an ultra-fine filter are installed in the air filtering assembly, the pipeline filter, the freeze dryer, the fine filter and the ultra-fine filter are arranged and designed according to the air inlet sequence, and gas circulation is achieved among the pipeline filter, the freeze dryer, the fine filter and the ultra-fine filter through gas pipelines. Theair filtering assembly is in gas communication with the air separation adsorption device through an air inlet pipe; calcium molecular sieves and carbon molecular sieves are installed in the air separation adsorption device at intervals in a staggered mode, and the enrichedoutlet end of the air separation adsorption device is in gas communication with an oxygen-enriched gas point through an oxygen-enriched pipeline. According to the invention, oxygen-enriched preparation can be realized while nitrogen is prepared.

Description

technical field [0001] The invention relates to the technical field of nitrogen production and oxygen enrichment, in particular to a simultaneous nitrogen production and oxygen enrichment system. Background technique [0002] A nitrogen generator is a device that uses air as a raw material and uses physical methods to separate oxygen and nitrogen in it to obtain nitrogen. The nitrogen generator is a nitrogen production equipment designed and manufactured according to the pressure swing adsorption technology. The nitrogen generator uses high-quality imported carbon molecular sieve (CMS) as the adsorbent, and adopts the principle of pressure swing adsorption (PSA) at room temperature to separate air to produce high-purity nitrogen. Usually two adsorption towers are connected in parallel, and the imported PLC controls the automatic operation of the imported pneumatic valve to alternately perform pressurized adsorption and decompressed regeneration to complete the separation of...

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Problems solved by technology

[0003] Existing nitrogen and oxygen generators are separate equipment, which tends to lead to waste of early resources and high energy consumption during the manufacturing process

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