Low-dew-point PSA nitrogen generation system

A low dew point, nitrogen technology, applied in nitrogen compounds, refrigeration and liquefaction, nitrogen purification/separation, etc., can solve the problems of inability to lower the dew point and high water content of nitrogen, achieve good air dispersion effect, improve dryness, and reduce sound Effect

Pending Publication Date: 2018-09-11
无锡市申隆气体设备有限公司
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AI Technical Summary

Problems solved by technology

[0003] Although this kind of nitrogen generator is convenient to prepare high-pressure nitrogen, it not only provides convenience for production, but also facilitates transportation and installation. The plant occupies a small area and improves the utilization rate of plant space; high water content

Method used

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Embodiment

[0037] Embodiment: a kind of low dew point PSA nitrogen production system, such as figure 1 , 2 As shown, it includes an air compressor 12, an air buffer tank 13, a C-level filter 14, a cold dryer 15, a T-level filter 16, an A-level filter 17, a nitrogen generating device, and a nitrogen buffer tank 27 connected in sequence through pipelines. , heatless adsorption dryer 28 and nitrogen storage tank 45. The air compressor 12 is used to extract air, and the air buffer tank 13 is used to store the air extracted by the air compressor 12 and release it slowly. The C-level filter 14 is used to filter moisture and impurities of larger particles in the air. The cold dryer 15 is used for cooling and compressing air. The T-level filter 16 and the A-level filter 17 are used to filter the impurities of smaller particles in the air. The nitrogen generator can separate the nitrogen and oxygen in the air to produce nitrogen. The nitrogen buffer tank 27 can reduce the nitrogen flow rate ...

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Abstract

The invention relates to the field of nitrogen generation systems, in particular to a low-dew-point PSA nitrogen generation system. According to the technical scheme, the low-dew-point PSA nitrogen generation system is characterized in that the low-dew-point PSA nitrogen generation system comprises an air compressor, an air buffer tank, a C-level filter, a refrigeration dryer, a T-level filter, anA-level filter, a nitrogen generation device, a nitrogen buffer tank and a nitrogen storage tank which are sequentially connected through pipelines, and further comprises a nitrogen outlet pipeline and a nitrogen discharging pipeline; the nitrogen generation device comprises a first adsorption tower and a second adsorption tower; a three-way pipe is arranged on the A-level filter, and the A-levelfilter is connected with nitrogen inlets of the first adsorption tower and the second adsorption tower through the three-way pipe; the nitrogen inlets of the first adsorption tower and the second adsorption tower are both connected to the nitrogen discharging pipeline; nitrogen outlets of the first adsorption tower and the second adsorption tower are both connected to the nitrogen outlet pipeline; a silencer is arranged on the nitrogen discharging pipeline; and a heat-free adsorption-type dryer is further connected between the nitrogen buffer tank and the nitrogen storage tank through a pipeline. The low-dew-point PSA nitrogen generation system has the advantages that the nitrogen dew point can be decreased, and the nitrogen purity can be improved.

Description

technical field [0001] The invention relates to the field of nitrogen production systems, in particular to a low dew point PSA nitrogen production system. Background technique [0002] At present, the Chinese patent with the publication number CN203741043U discloses a high-pressure nitrogen machine, including a frame and a freeze-drying device, a filtering device, an oil removal device, a nitrogen making device, and a low-pressure nitrogen storage cylinder connected in sequence in the frame. , high-pressure compression device and high-pressure nitrogen gas storage cylinder; the air enters the nitrogen production device after being processed by a freeze-drying device, a filter device and an oil removal device, and the prepared nitrogen is first buffered in a low-pressure nitrogen gas storage cylinder, and stored after being pressurized by a high-pressure compression device In the high-pressure nitrogen gas storage cylinder, the high-pressure nitrogen gas storage cylinder can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J3/04C01B21/04
CPCF25J3/04636C01B21/0455F25J2215/42
Inventor 徐晓明
Owner 无锡市申隆气体设备有限公司
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