CN203836610U - Nitrogen out-conveying pipeline - Google Patents
Nitrogen out-conveying pipeline Download PDFInfo
- Publication number
- CN203836610U CN203836610U CN201420204124.7U CN201420204124U CN203836610U CN 203836610 U CN203836610 U CN 203836610U CN 201420204124 U CN201420204124 U CN 201420204124U CN 203836610 U CN203836610 U CN 203836610U
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- Prior art keywords
- nitrogen
- pipeline
- storage tank
- pressure
- compressor
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Abstract
The utility model discloses a nitrogen out-conveying pipeline. The nitrogen out-conveying pipeline comprises a nitrogen compressor unit and a low-voltage nitrogen storage tank group which are connected through a pipeline. The low-voltage nitrogen storage tank group and a nitrogen storage tank group nitrogen outlet pipeline are connected. The nitrogen storage tank group nitrogen outlet pipeline is connected with a fractionating tower through a fractionating tower outlet pressure nitrogen pipeline. A stop valve is arranged between the nitrogen storage tank group nitrogen outlet pipeline and the fractionating tower outlet pressure nitrogen pipeline. The problem that in the prior art, when an air separation system nitrogen compressor cannot operate normally under an emergency, nitrogen out conveying is stopped, a coke oven gas compressor is lack of nitrogen, and accordingly a system is forced to be shut down is solved.
Description
Technical field
The utility model belongs to empty minute technical field, is specifically related to a kind of nitrogen and sends pipeline outside.
Background technique
In chemical process, many production systems need nitrogen replacement, and part nitrogen is as compressor seal gas.
When if nitrogen compressor something unexpected happened can not run well, cause nitrogen gas supply to interrupt, follow-up workshop section is because adopting coke-stove gas heat-insulation pressure keeping without nitrogen replacement, if system is breakneck in this state for a long time, very easily there is the dangerous accidents such as toxic and harmful leaks, catches fire, blast.Then system compresses machine interrupts having to be forced to stop in emergency because of sealing nitrogen, and oil system cannot be set up simultaneously, can not Automatic continuous jiggering, and can only manually be interrupted compressor is carried out to jiggering, in the time of labor intensive, do not reach continuously and smoothly's property of auto-barring; And, as everyone knows, the character of Chemical Manufacture has determined that its production process has very strong continuity, once frequently drive, stop because certain reason causes system, consequence is quite serious, light affect working life of manufacturing mechanism, instrument, pipeline etc., heavy cause great life, the property loss that can not save.
Model utility content
The purpose of this utility model is to provide a kind of nitrogen and sends pipeline outside, has solved can not running well because of something unexpected happened when space division system nitrogen compressor of existing in prior art, and nitrogen is sent interruption outside, causes rear system to be forced to the problem of stopping.
The technological scheme that the utility model adopts is, comprise the nitrogen compressor group and the low-pressure nitrogen tank battery that by pipeline, connect, low-pressure nitrogen tank battery is connected with nitrogen storage tank group outlet conduit, nitrogen storage tank group outlet conduit is connected with fractionation tower by going out fractionation tower pressure nitrogen gas pipeline, nitrogen storage tank group outlet conduit and go out between fractionation tower pressure nitrogen gas pipeline to be provided with stop valve.
Feature of the present utility model is also:
Nitrogen compressor group is composed in parallel by 2 nitrogen compressors;
Low-pressure nitrogen tank battery is comprised of three low-pressure nitrogen storage tanks in parallel.
The beneficial effects of the utility model are, when nitrogen compressor fault cannot run well, at this moment nitrogen compressor the supply of nitrogen is ended, nitrogen ductwork pressure starts to decline, when nitrogen is sent ductwork pressure outside and is down to 0.44MPa, open rapidly the above-mentioned stop valve between fractionation tower pressure nitrogen gas pipeline and low-pressure nitrogen tank battery outlet pipe that goes out, thereby utilize fractionation tower pressure nitrogen gas to provide nitrogen for rear system, to guarantee rear system nitrogen supply (NS), thereby reach the object of safety and steady operation, avoided the situation that causes rear system to stop in emergency because of nitrogen compressor fault, until nitrogen compressor recovers normal rear startup nitrogen compressor, be rear system supply nitrogen.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of nitrogen of the utility model is sent pipeline outside.
In figure, 1. nitrogen compressor group, 2. low-pressure nitrogen tank battery, 3. nitrogen goes out nitrogen storage tank group pipeline, 4. goes out fractionation tower pressure nitrogen gas pipeline, 5. fractionation tower, 6. stop valve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The utility model provides a kind of nitrogen to send pipeline outside, comprise the nitrogen compressor group 1 and the low-pressure nitrogen tank battery 2 that by pipeline, connect, low-pressure nitrogen tank battery 2 goes out nitrogen storage tank group pipeline 3 with nitrogen and is connected, nitrogen goes out nitrogen storage tank group pipeline 3 and is connected with fractionation tower 5 by going out fractionation tower pressure nitrogen gas pipeline 4, and nitrogen goes out nitrogen storage tank group pipeline 3 and go out between fractionation tower pressure nitrogen gas pipeline 4 to be provided with stop valve 6.
Its using method is, when the 1 normal work of nitrogen compressor group, stop valve 6 is closed, once nitrogen compressor group 1, break down and cannot normally move, until low-pressure nitrogen tank battery 2 pressure drops during to 0.44MPa, slowly stop valve 6 is opened to (in order to avoid fractionation tower is impacted), by using the pressure nitrogen gas of tower output under space division system fractionation tower, be that follow-up workshop section continues air feed, to guarantee security of system smooth running, thereby avoided the situation that causes rear system to stop in emergency because of nitrogen compressor fault, until nitrogen compressor recovers normal, and, the working pressure of low-pressure nitrogen tank battery 2 is 0～0.7MPa, the pressure of the pressure nitrogen gas of 5 times tower extraction of fractionation tower is 0.44MPa, can meet rear system coke oven gas compressor and the demand of other users to nitrogen pressure completely, from nitrogen storage tank group pipeline 3 low-pressure nitrogen out, be divided into two-way, one tunnel is used as oxygen compressor protection nitrogen, subsequent user is led to as the sealing nitrogen of coke oven gas compressor in another road, and go out fractionation tower pressure nitrogen gas pipeline 4 nitrogen out, as the nitrogen of oxygen compressor sealing below, use.
A kind of nitrogen of the utility model is sent pipeline outside, and when normal production, the amount that oxygen compressor sealing nitrogen consumes pressure nitrogen gas is about 377Nm
3/ h, during the full production of this cover air separation facility, design pressure nitrogen amount is 2000Nm
3/ h, then system coke oven gas compressor sealing nitrogen use level and other user's nitrogen use levels are 600～700Nm
3/ h, simultaneously supply oxygen compressor seal gas and rear system coke oven gas compressor sealing nitrogen and other users of the yielding capacity of pressure nitrogen gas in theory, and, the sealing nitrogen pressure requirement>=0.4MPa of rear system coke oven gas compressor, the pressure of pressure nitrogen gas that fractionation tower produces is higher than 0.44MPa simultaneously, can meet rear system coke oven gas compressor and other users completely to nitrogen pressure, the demand of consumption, solved can not running well because of something unexpected happened when space division system nitrogen compressor of existing in prior art, nitrogen is sent interruption outside, the problem that causes rear system to be forced to stop in emergency.
Claims (3)
1. a nitrogen is sent pipeline outside, it is characterized in that, comprise the nitrogen compressor group (1) and the low-pressure nitrogen tank battery (2) that by pipeline, connect, described low-pressure nitrogen tank battery (2) goes out nitrogen storage tank group pipeline (3) with nitrogen and is connected, described nitrogen goes out nitrogen storage tank group pipeline (3) and is connected with fractionation tower (5) by going out fractionation tower pressure nitrogen gas pipeline (4), and nitrogen goes out nitrogen storage tank group pipeline (3) and go out between fractionation tower pressure nitrogen gas pipeline (4), to be provided with stop valve (6).
2. a kind of nitrogen according to claim 1 is sent pipeline outside, it is characterized in that, described nitrogen compressor group (1) is composed in parallel by 2 nitrogen compressors.
3. a kind of nitrogen according to claim 1 is sent pipeline outside, it is characterized in that, described low-pressure nitrogen tank battery (2) is comprised of 3 low-pressure nitrogen storage tanks in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204124.7U CN203836610U (en) | 2014-04-24 | 2014-04-24 | Nitrogen out-conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204124.7U CN203836610U (en) | 2014-04-24 | 2014-04-24 | Nitrogen out-conveying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836610U true CN203836610U (en) | 2014-09-17 |
Family
ID=51514451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420204124.7U Expired - Fee Related CN203836610U (en) | 2014-04-24 | 2014-04-24 | Nitrogen out-conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836610U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370539A (en) * | 2015-12-02 | 2016-03-02 | 莱芜钢铁集团有限公司 | Bleeding device with gas compressors connected in parallel |
| CN107023752A (en) * | 2017-05-27 | 2017-08-08 | 遵义中铂硬质合金有限责任公司 | Ammonia air supply system and its application method |
| CN108913217A (en) * | 2018-08-20 | 2018-11-30 | 湖北云华安化工有限公司 | A kind of air supply system and air supply method of gasification furnace |
-
2014
- 2014-04-24 CN CN201420204124.7U patent/CN203836610U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370539A (en) * | 2015-12-02 | 2016-03-02 | 莱芜钢铁集团有限公司 | Bleeding device with gas compressors connected in parallel |
| CN107023752A (en) * | 2017-05-27 | 2017-08-08 | 遵义中铂硬质合金有限责任公司 | Ammonia air supply system and its application method |
| CN108913217A (en) * | 2018-08-20 | 2018-11-30 | 湖北云华安化工有限公司 | A kind of air supply system and air supply method of gasification furnace |
| CN108913217B (en) * | 2018-08-20 | 2024-02-06 | 湖北云华安化工有限公司 | Air supply system and air supply method of gasification furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20150424 |
|
| EXPY | Termination of patent right or utility model |