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Vented nitrogen recovering system

A nitrogen recovery and nitrogen technology, applied in gas treatment applications, fixed-capacity gas storage tanks, container discharge methods, etc., can solve problems such as waste of resources, and achieve the effect of reducing burden and increasing pressure

Pending Publication Date: 2019-03-19
云南云天化石化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem that in the existing industrial production, a part of raw materials are discharged along with the venting gas in daily use due to the absence of a vented nitrogen recovery system, resulting in a certain waste of resources, and provides a vented nitrogen recovery system

Method used

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  • Vented nitrogen recovering system
  • Vented nitrogen recovering system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 and figure 2 As shown, the venting nitrogen recovery system includes a liquid nitrogen storage tank 1, a conveying pipe 2, a nitrogen reheater 3, a diaphragm compressor unit 4, a nitrogen buffer tank 5 and a low-pressure conveying pipe 9, and the venting end of the liquid nitrogen storage tank 1 and the conveying pipe. 2 is connected at one end, and the conveying pipe 2 is sequentially connected with a venting pipe 7, a nitrogen reheater 3, a diaphragm compressor unit 4 and a nitrogen buffer tank 5. The circulating inlet end and the circulating gas outlet end of the nitrogen buffer tank 5 are both communicated with the low-pressure conveying pipe 9 . The conveying pipe 2 is provided with a first control valve 11 , and the first control valve 11 is located between the venting pipe 7 and the liquid nitrogen storage tank 1 . An inlet valve 13 is provided on the conveying pipe 2 , and the inlet valve 13 is located between the venting pipe 7 and the nitrogen...

Embodiment 2

[0032] Based on Example 1, as image 3 and Figure 4 As shown, the nitrogen recuperator 3 is a cylindrical structure, and the nitrogen recuperator 3 is provided with an electric heating sheet 20 and a heating pipe 19, the beginning and the end of the heating pipe 19 are connected with the conveying pipe 2, and the electric heating sheet 20 is attached to the On the inner wall of the nitrogen reheater 3, the adjacent electric heating sheets 20 are equally spaced.

[0033] In use, nitrogen gas enters the heating pipe from the conveying pipe, and the heating pipe is heated by the electric heating sheet, and the nitrogen temperature in the pipe is greatly increased, which is convenient for subsequent manufacture and use.

Embodiment 3

[0035] Based on Example 2, the heating pipe 19 has a serpentine structure, and the beginning and the end of the heating pipe 19 are located on the same plane.

[0036] In use, by setting the heating pipe into a serpentine structure, the conveying distance of the heating pipe in the nitrogen reheater can be effectively increased, the final heat absorption of nitrogen can be improved, and a suitable reheating temperature can be ensured. The ends are arranged on the same plane, which can reduce a certain delivery pressure.

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PUM

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Abstract

The invention relates to the technical field of resource recycling, in particular to a vented nitrogen recovering system. The system comprises a liquid nitrogen storage tank, a delivery pipe, a nitrogen recuperator, a diaphragm compressor unit, a nitrogen buffer tank and a low-pressure delivery pipe; the venting end of the liquid nitrogen storage tank is connected with one end of the delivery pipe; a vent pipe, the nitrogen recuperator, the diaphragm compressor unit and the nitrogen buffer tank are connected onto the delivery pipe sequentially; the circulating gas inlet end and the circulatinggas outlet end of the nitrogen buffer tank communicate with the low-pressure delivery pipe; a first control valve is located between the vent pipe and the liquid nitrogen storage tank; an inlet valveis arranged on the delivery pipe and is located between the vent pipe and the nitrogen recuperator; a fourth control valve is arranged on the delivery pipe and is located between the diaphragm compressor unit and the nitrogen buffer tank; and a vent valve is arranged on the vent pipe. By the aid of the system, the problem that certain resource waste is caused by the fact that part of raw materials are discharged along with vented gases during daily use due to the fact that no vented nitrogen recovering system is arranged in existing industrial production is solved.

Description

technical field [0001] The invention relates to the technical field of resource recovery and reuse, in particular to a venting nitrogen recovery system. Background technique [0002] Nitrogen is usually a colorless and odorless gas. It is very useful in modern production and life. It can be used as food protection gas, light bulb filling gas, tire inflation, synthetic ammonia, resin, rubber, etc. in the chemical industry. liquid nitrogen storage for storage, but at an ambient temperature of 20 °C, at 3000 m 3 Taking the storage tank as an example, the daily evaporation rate is 0.194%, 5.82m 3 Liquid nitrogen, the daily evaporation rate of pipeline transportation is 12.65%, 6.07m 3 Liquid nitrogen, these raw materials are vented through the venting tube, resulting in a certain waste of resources. SUMMARY OF THE INVENTION [0003] Aiming at the problem that in the existing industrial production, since a venting nitrogen recovery system is not provided, part of the raw mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C7/04F17C13/00F17C13/04F17C13/02
CPCF17C7/04F17C13/002F17C13/025F17C13/04F17C2205/0323F17C2201/0119F17C2201/035F17C2227/0304F17C2223/013F17C2225/0123F17C2221/014F17C2270/05F17C2250/0626
Inventor 赵学诗曾凯王世国杨建卢勤斌胡显波林高雁
Owner 云南云天化石化有限公司