CN202625854U - Nitrogen recycling device - Google Patents
Nitrogen recycling device Download PDFInfo
- Publication number
- CN202625854U CN202625854U CN 201220212495 CN201220212495U CN202625854U CN 202625854 U CN202625854 U CN 202625854U CN 201220212495 CN201220212495 CN 201220212495 CN 201220212495 U CN201220212495 U CN 201220212495U CN 202625854 U CN202625854 U CN 202625854U
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- nitrogen
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- compressor
- mpa
- nitrogen compressor
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Abstract
A nitrogen recycling device comprises a 1.0 megapascal (MPa) nitrogen compressor, a 2.5 MPa nitrogen compressor, an automatic flow control valve (V1681), a first hand valve (V1617) and a nitrogen buffer tank. An outlet of the 1.0 MPa nitrogen compressor is connected with a 1.0 MPa nitrogen pipe mesh, and an outlet of the 2.5 MPa nitrogen compressor is connected with a 2.5 MPa nitrogen pipe mesh. An inlet of the first hand valve is connected with the outlet of the 2.5 MPa nitrogen compressor, and an outlet of the first hand valve is connected with the outlet of the 1.0 MPa nitrogen compressor. An inlet of the automatic flow control valve is connected with the outlet of the 2.5 MPa nitrogen compressor, and an outlet of the automatic flow control valve is connected with the outlet of the 1.0 MPa nitrogen compressor. When pressure of the 1.0 MPa nitrogen pipe mesh drops, the first hand valve and the automatic flow control valve can be aptly opened so that the 2.5 MPa nitrogen can be appropriately added into a 1.0 MPa nitrogen system.
Description
Technical field
The utility model relates to and a kind ofly 2.5MPa is diffused the device that nitrogen recycling uses the 1.0MPa pipe network, a kind of nitrogen recycling use device.
Background technology
In the existing nitrogen gas conveying device, the 10kpa low-pressure nitrogen that is come by air separation facility is pressurized to 1.0MPa and the system's conveying backward of two pressure ratings of 2.5MPa respectively through nitrogen compressor.Wherein 1.0MPa nitrogen is by a maximum air demand 6600Nm
3The 1.0MPa nitrogen compressor supply of/h is because the usage quantity of 1.0MPa nitrogen is in 4600 ~ 7400Nm
3/ h fluctuation status needs 1000Nm of frequent start-stop
3/ h nitrogen compressor (power 135Kw) replenishes nitrogen peak value consumption.2.5MPa the specified free air delivery 1800Nm of nitrogen compressor
3/ h, the maximum usage quantity 1000Nm of back system user
3/ h, rich 800Nm
3Valuable resource has been wasted in the emptying of/h nitrogen.
Summary of the invention
The utility model is intended to propose a kind of nitrogen recycling use device, can under the situation that does not influence the normal operation of two pressure rating nitrogen system, 2.5MPa nitrogen more than needed be added to 1.0MPa nitrogen pipe network, thus the purpose that reaches energy-conservation, reduces cost.
This nitrogen recycling use device comprises 1.0MPa nitrogen compressor, 2.5MPa nitrogen compressor, 1.0MPa nitrogen pipe network, 2.5MPa nitrogen pipe network and first-hand valve.1.0MPa the outlet of nitrogen compressor links to each other with 1.0MPa nitrogen pipe network; 2.5MPa the outlet of nitrogen compressor links to each other with 2.5MPa nitrogen pipe network; The import of first-hand valve links to each other with the outlet of 2.5MPa nitrogen compressor, and the outlet of first-hand valve links to each other with the outlet of 1.0MPa nitrogen compressor.
The method of use of this device is: in two grade pressure system operational processs; 1.0MPa nitrogen system pressure descends; When needing to replenish nitrogen with pressurize; Suitably open first-hand valve, let 2.5MPa nitrogen appropriateness cover the 1.0MPa nitrogen system, should guarantee that simultaneously the 2.5MPa nitrogen system is stable.This process can abbreviate " operation of collaborating " as.
Description of drawings
Accompanying drawing is the structure principle chart of nitrogen recycling use device.
Embodiment
As shown in the figure, this nitrogen recycling use device comprises 1.0MPa nitrogen compressor, 2.5MPa nitrogen compressor, 1.0MPa nitrogen pipe network, 2.5MPa nitrogen pipe network and first-hand valve V1617.1.0MPa the outlet of nitrogen compressor links to each other with 1.0MPa nitrogen pipe network; 2.5MPa the outlet of nitrogen compressor links to each other with 2.5MPa nitrogen pipe network; The import of first-hand valve links to each other with the outlet of 2.5MPa nitrogen compressor, and the outlet of first-hand valve links to each other with the outlet of 1.0MPa nitrogen compressor.
This nitrogen recycling use device can also comprise automatic flow variable valve V1681 and nitrogen buffer tank; The import of automatic flow variable valve links to each other with the outlet of 2.5MPa nitrogen compressor; The outlet of automatic flow variable valve links to each other with the outlet of 1.0MPa nitrogen compressor, and the inlet of nitrogen buffer tank links to each other with the outlet of 2.5MPa nitrogen compressor.
Automatic flow variable valve V1681 and manual valve V1617 are parallelly connected, and the automatic flow variable valve can be controlled the operation of collaborating automatically by DCS os.When the automatic flow variable valve had fault, available manual valve was regulated.
The effect of nitrogen buffer tank is to make the 2.5MPa nitrogen system that bigger volume is arranged, the pressure surge of 2.5MPa nitrogen system when operating to reduce to collaborate.
V1622 is the blow-off valve of 2.5MPa nitrogen among the figure, and V1550 is the blow-off valve of 1.0MPa nitrogen.
The prerequisite that is connected in series is that the 2.5MPa nitrogen compressor is in running status, 2.5MPa nitrogen has enough surpluses, and blow-off valve V1622 has 20% aperture.When the pressure of 1.0MPa nitrogen system reduces, slowly open V1617 (or V1681), slowly turn down V1622 simultaneously, the nitrogen in the 2.5MPa nitrogen pipe network is got in the 1.0MPa nitrogen pipe network, the pressure of 1.0MPa nitrogen system is restored.When V1622 aperture＜2%, V1617 can not continue to open.The purpose of operating of collaborating is short-term adjusting 1.0MPa nitrogen pipe network low ebb, starts the nitrogen compressor operation thereby reduce.1.0MPa the nitrogen system gas consumption reduces should stop the operation of collaborating before back and the parking of 2.5MPa nitrogen compressor.Collaborating operation can be by DCS os according to the 2.5MPa nitrogen system and the 1.0MPa nitrogen system relevant data that collect, automatic flow variable valve V1681 and V1622 is regulated accomplish.
Claims (2)
1. nitrogen recycling use device; Comprise 1.0MPa nitrogen compressor, 2.5MPa nitrogen compressor, 1.0MPa nitrogen pipe network and 2.5MPa nitrogen pipe network; 1.0MPa the outlet of nitrogen compressor links to each other with 1.0MPa nitrogen pipe network; 2.5MPa the outlet of nitrogen compressor links to each other with 2.5MPa nitrogen pipe network; It is characterized in that this 2.5MPa nitrogen gas recovering apparatus also comprises first-hand valve (V1617), the import of first-hand valve links to each other with the outlet of 2.5MPa nitrogen compressor, and the outlet of first-hand valve links to each other with the outlet of 1.0MPa nitrogen compressor.
2. nitrogen recycling use device as claimed in claim 1; It is characterized in that this device also comprises automatic flow variable valve (V1681) and nitrogen buffer tank; The import of automatic flow variable valve links to each other with the outlet of 2.5MPa nitrogen compressor; The outlet of automatic flow variable valve links to each other with the outlet of 1.0MPa nitrogen compressor, and the inlet of nitrogen buffer tank links to each other with the outlet of 2.5MPa nitrogen compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220212495 CN202625854U (en) | 2012-05-11 | 2012-05-11 | Nitrogen recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220212495 CN202625854U (en) | 2012-05-11 | 2012-05-11 | Nitrogen recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202625854U true CN202625854U (en) | 2012-12-26 |
Family
ID=47379074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220212495 Expired - Fee Related CN202625854U (en) | 2012-05-11 | 2012-05-11 | Nitrogen recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202625854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3095759A1 (en) | 2015-05-21 | 2016-11-23 | Yuanming Li | Low-temperature wind tunnel nitrogen recovery device, and recovery method |
-
2012
- 2012-05-11 CN CN 201220212495 patent/CN202625854U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3095759A1 (en) | 2015-05-21 | 2016-11-23 | Yuanming Li | Low-temperature wind tunnel nitrogen recovery device, and recovery method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140511 |