CN106764434A - A kind of novel nitrogen feed system - Google Patents
A kind of novel nitrogen feed system Download PDFInfo
- Publication number
- CN106764434A CN106764434A CN201611154912.XA CN201611154912A CN106764434A CN 106764434 A CN106764434 A CN 106764434A CN 201611154912 A CN201611154912 A CN 201611154912A CN 106764434 A CN106764434 A CN 106764434A
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- compressor
- pressure
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- pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
Abstract
The present invention discloses a kind of novel nitrogen feed system, including the first compressor and the second compressor, the entrance of the entrance of first compressor second compressor in parallel, the outlet of first compressor be connected with first in pressure pipeline, the outlet of second compressor be connected with second in pressure pipeline；Pressure pipeline is parallel with middle pressure house steward in pressure pipeline and described second in described first, and medium pressure house steward is connected with medium-voltage equipment；Bypass pipe is communicated between the outlet of first compressor and entrance, low pressure pipeline is connected with the bypass pipe, medium pressure pipeline is also associated with depressurized system, the depressurized system and the low pressure pipeline are connected with low-voltage equipment, the application provides a kind of novel nitrogen feed system, few with energy waste, low-pressure gas feeds convenient advantage.
Description
Technical field
The present invention relates to nitrogen supply field, and in particular to a kind of novel nitrogen feed system.
Background technology
Metal smelt enterprise ensures that the nitrogen in enterprise production process needs by compressor, meanwhile, metal smelt process
In, the byproduct nitrogen that oxygen making unit is prepared in oxygen preparation can supply metal smelt and job shop is used.
In actual production environment, medium pressure nitrogen gas is mainly used in metal smelt, and its pressure limit is general in 1.2-1.6MPa
Between, and other most of process equipments are needed the step-down of medium pressure nitrogen gas for low-pressure nitrogen is used, low-pressure nitrogen
Pressure limit is general between 0.7-1.0MPa.
Therefore, the medium pressure nitrogen gas for preparing could be supplied to low-voltage equipment, energy after need to carrying out pressure release at pressure relief valve
Amount consumption not only causes the waste of energy at valve, and increases the energy consumption of nitrogen compressor, increase the input of enterprise into
This.
The content of the invention
In view of this, the application provides a kind of novel nitrogen feed system, low-pressure gas supply side few with energy waste
Just advantage.
To solve above technical problem, the technical scheme that the present invention is provided is a kind of novel nitrogen feed system, including the
One compressor and the second compressor, the entrance of entrance second compressor in parallel of first compressor, first pressure
The outlet of contracting machine be connected with first in pressure pipeline, the outlet of second compressor be connected with second in pressure pipeline；
Pressure pipeline is parallel with middle pressure house steward in pressure pipeline and described second in described first, during medium pressure house steward is connected with
Pressure equipment；
Bypass pipe is communicated between the outlet of first compressor and entrance, low-voltage tube is connected with the bypass pipe
Road, medium pressure pipeline is also associated with depressurized system, and the depressurized system and the low pressure pipeline are connected with low-voltage equipment.
Preferably, also including the 3rd compressor set, the 3rd compressor set is by some mesolow compressor parallel groups
Pressure pipeline and the low pressure pipeline in pressure pipeline, second into the outlet connection described first of, the 3rd compressor set.
Preferably, also including liquid nitrogen supplementary device, the liquid nitrogen supplementary device includes liquid nitrogen storage tank and is arranged on liquid nitrogen
Liquid nitrogen pump on storage tank, the liquid nitrogen pump connects medium pressure house steward.
Preferably, the low pressure pipeline is also associated with the first storage device, first storage device and the low-voltage tube
The first stop valve is provided between road.
Preferably, first storage device is a kind of mesolow storage tank.
Preferably, connection regulation valve group is provided between medium pressure house steward and low pressure pipeline.
Preferably, the connection regulation valve group includes the second stop valve, the 3rd stop valve and regulating valve, second cut-off
Valve is arranged on the low pressure pipeline, and the 3rd stop valve and the regulating valve are arranged on medium pressure house steward.
Preferably, the first unicom pipeline is additionally provided between pressure pipeline in pressure pipeline and described second in described first, it is described
Blind plate and the 4th stop valve are provided with first unicom pipeline.
Preferably, the low pressure pipeline is connected with the low-voltage equipment by low pressure branched pipe, the low pressure pipeline and institute
State and flowmeter and pressure transmitter are installed on low pressure branched pipe, the flowmeter and pressure transmitter are connected with control system.
Compared with prior art, its detailed description is as follows for the application：
The entrance of the entrance of the first compressor and the second compressor is in parallel, the first compressor outlet connection first in
Pressure pipeline and the second compressor outlet connection second in pressure pipeline be connected in parallel on it is middle pressure house steward on, during medium pressure house steward is connected with
Pressure equipment, the application the first compressor and the second compressor common guarantee are realized by such scheme in pressure pipeline medium pressure gas
Output.
First compressor has also bypassed low pressure pipeline, and the low pressure pipeline is connected with low-voltage equipment.
Middle pressure pipeline is provided by depressurized system to low-voltage equipment, or low pressure pipeline directly provides low pressure gas to low-voltage equipment
Body, this programme avoids the energy waste that the prior art feed system that is depressured again of boosting is caused, it is ensured that the confession of medium pressure gas
To while ensure low-pressure gas supply, have the advantages that energy waste is few.
During 3rd compressor set includes that some low pressure compressors in parallel, the 3rd compressor set pass through to adjust and link
Pressure house steward or the low pressure compressor number of devices of low pressure pipeline, adjust gas output pressure, have both met medium pressure gas output needs,
Low-pressure gas output needs can also be met.
Be connected for middle pressure house steward and low pressure pipeline by connection regulation valve group, and the medium pressure gas in middle pressure house steward can be depressured bypass extremely
Low pressure pipeline, to supplement the supply gas pressure of low-pressure gas in time.
Flowmeter and pressure transmitter, the flowmeter and pressure transmitter are installed on low pressure pipeline and low pressure branched pipe
For pressing the gas flow in house steward in synchronous statistics, the data on flows is delivered to control system, convenient management control.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of connection regulation valve group in the present invention.
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real
The present invention is described in further detail to apply example.
As depicted in figs. 1 and 2, a kind of novel nitrogen feed system, including the first compressor 1, the second compressor 2 and the 3rd
Compressor set 3, the entrance of first compressor 1 is connected in parallel on the outlet of oxygenerator 7, institute with the entrance of second compressor 2
State the 3rd compressor set 3 to be composed in parallel by the low pressure compressor 31 of some identical compression horsepowers, first compressor 1 goes out
Pressure pipeline 41 in mouthful being connected with first, the entrance and exit of first compressor 1 is also associated with bypass pipe 12, the bypass pipe
12 are connected with low pressure pipeline 5, the outlet of second compressor 2 be connected with second in the road of pressure pipe 42, pressure pipeline in described first
The first unicom pipeline 71 is connected with 41 and second between pressure pipeline 42, pressure pipe in pressure pipeline 41 and described second in described first
Road 42 is parallel with middle pressure house steward 4, pressure pipe in pressure pipeline 41, second in the outlet connection described first of the 3rd compressor set 3
Road 42 and the low pressure pipeline 5.
Wherein, the first compressor 1 is preferably mesohigh nitrogen compressor, and second compressor 2 is preferably mesohigh oxygen
Air compressor, the 3rd compressor set 3 is preferably mesolow oxygen nitrogen compressor.
Medium pressure house steward 4 is also associated with liquid nitrogen supplementary device 61, and medium pressure house steward 4 is connected with medium-voltage equipment 8, described
Medium-voltage equipment 8 is preferably a kind of steelmaking equipment.
Connection regulation valve group 9 is provided between medium pressure house steward 4 and low pressure pipeline 5, the connection regulation valve group 9 includes
Second stop valve 91, the 3rd stop valve 92 and regulating valve 93, second stop valve 91 are arranged on low pressure pipeline 5, and described
Three stop valves 92 and the regulating valve 93 are arranged on middle pressure house steward 4.
Medium pressure house steward 4 is also associated with depressurized system 10, and the low-pressure end of the depressurized system 10 is connected with low-voltage equipment
11。
Low pressure pipeline 5 is also associated with low pressure storage device 62, between the low pressure storage device 62 and the low pressure pipeline
It is provided with the first stop valve 94.
The low pressure pipeline 5 is connected with the low-voltage equipment 11 by low pressure branched pipe 53, the low pressure pipeline 5 and described
Flowmeter 95 is installed, the flowmeter 95 is connected with control system 13 on low pressure branched pipe 53.
First compressor and the second compressor parallel, first compressor outlet connection first in pressure pipeline and second
Pressure pipeline is parallel with middle pressure house steward in the second of compressor outlet connection, the application by such scheme realize the first compressor and
Medium pressure gas output in second compressor common guarantee in pressure pipeline.
First compressor has also bypassed the first low pressure pipeline, and second compressor has also bypassed the second low-voltage tube
Road, first low pressure pipeline and second low pressure pipeline are parallel with low pressure pipeline, and the low pressure pipeline is connected with low pressure and sets
It is standby.
Middle pressure pipeline is supplied by step-down to low-voltage equipment, or low pressure pipeline is directly supplied to low-voltage equipment.
During 3rd compressor set includes that some low pressure compressors in parallel, the 3rd compressor set pass through to adjust and link
Pressure house steward or the low pressure compressor number of devices of low pressure pipeline, adjust gas output pressure, have both met medium pressure gas output needs,
Low-pressure gas output needs can also be met.
Be connected for middle pressure house steward and low pressure pipeline by connection regulation valve group, and the medium pressure gas in middle pressure house steward can be depressured bypass extremely
Low pressure pipeline, to supplement the supply gas pressure of low-pressure gas in time.
Flowmeter and pressure transmitter, the flowmeter and pressure transmitter are installed on low pressure pipeline and low pressure branched pipe
For pressing the gas flow in house steward in synchronous statistics, the data on flows is delivered to control system, convenient management control.
The application also has convenient maintenance, has the advantages that to ensure mesolow supply gas pressure during the system failure, specifically
It is as follows：
When first compressor or the second compressor break down, can immediately start the 3rd compressor set, export low-pressure nitrogen,
Remaining low-pressure nitrogen demand can be supplemented by middle pressure house steward, separately can also be opened liquid nitrogen supplementary device centering pressure nitrogen and be mended
Fill.
First compressor break down when, export the whole nitrogen produced by it, output pressure using the second compressor
It is middle pressure (1.6-2.0MPa) to ensure that the medium pressure nitrogen gas of medium-voltage equipment is used, while the 4th compressor can be opened immediately, separately may be used also
Liquid nitrogen supplementary device centering pressure nitrogen is opened to be supplemented.
When overhauling the second compressor, the 3rd compressor set is opened, it is defeated with low-pressure nitrogen that it is produced nitrogen by the first compressor
Go out, produce oxygen and exported with middle pressure, the 3rd compressor set is produced nitrogen and oxygen and exported with middle pressure respectively.
The above is only the preferred embodiment of the present invention, it is noted that it is right that above-mentioned preferred embodiment is not construed as
Limitation of the invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of novel nitrogen feed system, including the first compressor and the second compressor, it is characterised in that first compression
The entrance of the entrance of machine second compressor in parallel, the outlet of first compressor be connected with first in pressure pipeline, it is described
The outlet of the second compressor be connected with second in pressure pipeline；
Pressure pipeline is parallel with middle pressure house steward in pressure pipeline and described second in described first, and medium pressure house steward is connected with middle pressure and sets
It is standby；
Bypass pipe is communicated between the outlet of first compressor and entrance, low pressure pipeline, institute are connected with the bypass pipe
State middle pressure pipeline and be also associated with depressurized system, the depressurized system and the low pressure pipeline are connected with low-voltage equipment.
2. a kind of novel nitrogen feed system according to claim 1, it is characterised in that also including the 3rd compressor set,
3rd compressor set is made up of some mesolow compressor parallels, the outlet of the 3rd compressor set connection described the
Pressure pipeline and the low pressure pipeline in pressure pipeline, second in one.
3. a kind of novel nitrogen feed system according to claim 1, it is characterised in that also including liquid nitrogen supplementary device,
The liquid nitrogen supplementary device includes liquid nitrogen storage tank and the liquid nitrogen pump being arranged on liquid nitrogen storage tank, and the liquid nitrogen pump connection is described
Middle pressure house steward.
4. a kind of novel nitrogen feed system according to claim 1, it is characterised in that the low pressure pipeline is also associated with
First storage device, the first stop valve is provided between first storage device and the low pressure pipeline.
5. a kind of novel nitrogen feed system according to claim 4, it is characterised in that first storage device is
Plant mesolow storage tank.
6. a kind of novel nitrogen feed system according to claim 1, it is characterised in that medium pressure house steward and low-voltage tube
Connection regulation valve group is provided between road.
7. a kind of novel nitrogen feed system according to claim 6, it is characterised in that the connection regulation valve group includes
Second stop valve, the 3rd stop valve and regulating valve, second stop valve are arranged on the low pressure pipeline, the 3rd cut-off
Valve and the regulating valve are arranged on medium pressure house steward.
8. a kind of novel nitrogen feed system according to claim 1, it is characterised in that pressure pipeline and institute in described first
The first unicom pipeline is additionally provided with stating second between pressure pipeline, blind plate and the 4th cut-off are provided with first unicom pipeline
Valve.
9. a kind of novel nitrogen feed system according to claim 1, it is characterised in that the low pressure pipeline is low with described
Pressure equipment is connected by low pressure branched pipe, and flowmeter and pressure inverting are provided with the low pressure pipeline and the low pressure branched pipe
Device, the flowmeter and pressure transmitter are connected with control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154912.XA CN106764434B (en) | 2016-12-14 | 2016-12-14 | A kind of novel nitrogen feed system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154912.XA CN106764434B (en) | 2016-12-14 | 2016-12-14 | A kind of novel nitrogen feed system |
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| Publication Number | Publication Date |
|---|---|
| CN106764434A true CN106764434A (en) | 2017-05-31 |
| CN106764434B CN106764434B (en) | 2019-07-05 |
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ID=58888098
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611154912.XA Active CN106764434B (en) | 2016-12-14 | 2016-12-14 | A kind of novel nitrogen feed system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965668A (en) * | 2018-01-12 | 2018-04-27 | 新余钢铁集团有限公司 | A kind of energy-saving compressed gas Multilevel partial-pressure regulating system |
| CN109027684A (en) * | 2018-09-30 | 2018-12-18 | 四川德胜集团钒钛有限公司 | A kind of nitrogen supply (NS) system |
| CN109140233A (en) * | 2018-09-30 | 2019-01-04 | 四川德胜集团钒钛有限公司 | The decompression of a kind of pair of gas handles supply technique |
| CN113007596A (en) * | 2021-01-20 | 2021-06-22 | 神华新能源有限责任公司 | Hydrogen filling system and hydrogenation station |
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|---|---|---|---|---|
| CN201852409U (en) * | 2010-09-29 | 2011-06-01 | 中国海洋石油总公司 | Air separation system utilizing liquefied natural gas (LNG) cold energy |
| WO2013002025A1 (en) * | 2011-06-28 | 2013-01-03 | 大陽日酸株式会社 | Air separation method and apparatus |
| CN204647852U (en) * | 2015-01-09 | 2015-09-16 | 神华集团有限责任公司 | Compressor dry gas seals nitrogen gas supply system and there is its methanol device |
| CN105156892A (en) * | 2015-08-20 | 2015-12-16 | 四川德胜集团钒钛有限公司 | Oxygen partial pressure supply system |
| CN204962292U (en) * | 2015-09-21 | 2016-01-13 | 陕西煤化能源有限公司 | Carry air separation device of sealed nitrogen gas |
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2016
- 2016-12-14 CN CN201611154912.XA patent/CN106764434B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201852409U (en) * | 2010-09-29 | 2011-06-01 | 中国海洋石油总公司 | Air separation system utilizing liquefied natural gas (LNG) cold energy |
| WO2013002025A1 (en) * | 2011-06-28 | 2013-01-03 | 大陽日酸株式会社 | Air separation method and apparatus |
| CN204647852U (en) * | 2015-01-09 | 2015-09-16 | 神华集团有限责任公司 | Compressor dry gas seals nitrogen gas supply system and there is its methanol device |
| CN105156892A (en) * | 2015-08-20 | 2015-12-16 | 四川德胜集团钒钛有限公司 | Oxygen partial pressure supply system |
| CN204962292U (en) * | 2015-09-21 | 2016-01-13 | 陕西煤化能源有限公司 | Carry air separation device of sealed nitrogen gas |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965668A (en) * | 2018-01-12 | 2018-04-27 | 新余钢铁集团有限公司 | A kind of energy-saving compressed gas Multilevel partial-pressure regulating system |
| CN109027684A (en) * | 2018-09-30 | 2018-12-18 | 四川德胜集团钒钛有限公司 | A kind of nitrogen supply (NS) system |
| CN109140233A (en) * | 2018-09-30 | 2019-01-04 | 四川德胜集团钒钛有限公司 | The decompression of a kind of pair of gas handles supply technique |
| CN113007596A (en) * | 2021-01-20 | 2021-06-22 | 神华新能源有限责任公司 | Hydrogen filling system and hydrogenation station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106764434B (en) | 2019-07-05 |
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