CN208919709U - A kind of injection recycling high pressure gas transmission station plan emptying natural gas system - Google Patents
A kind of injection recycling high pressure gas transmission station plan emptying natural gas system Download PDFInfo
- Publication number
- CN208919709U CN208919709U CN201821859896.9U CN201821859896U CN208919709U CN 208919709 U CN208919709 U CN 208919709U CN 201821859896 U CN201821859896 U CN 201821859896U CN 208919709 U CN208919709 U CN 208919709U
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- CN
- China
- Prior art keywords
- control valve
- injection
- natural gas
- sled
- blowdown piping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of injections to recycle high pressure gas transmission station plan emptying natural gas system, belongs to natural gas transportation technical field.It includes blowdown piping, working line for conveying high-pressure natural gas, the output end of the blowdown piping is equipped with the first control valve, metering sled is successively arranged on the working line, second control valve, pry regulator and third control valve, it further include bypass line, the input terminal of bypass line is connected on the working line between metering sled and the second control valve, the output end of the bypass line is connected on the working line of third control valve output end, the 4th control valve is successively arranged on the bypass line, injection sled and the 5th control valve, the injection sled is connect by injection pipeline with blowdown piping, for the gas in injection blowdown piping, the ejector pipe road is equipped with the 6th control valve.It can recycle a large amount of sales-quality gas, avoid resource significant wastage caused by the emptying of a large amount of sales-quality gas.
Description
Technical field
The utility model belongs to natural gas transportation technical field, is related to a kind of injection recycling high pressure gas transmission station plan emptying day
Right gas system.
Background technique
Natural gas is cleaning in non-renewable energy, efficient, the convenient energy.The gas pipeline pressure of China's West-East National Gas Transmission Project
For 10MPa, the design pressure of other main gas pipelines is also in 6.4MPa or more.Each natural gas station is by high-pressure natural gas
Being decompressed to 0.4MPa just can enter downstream tube net for users to use later.Therefore when being supplied to ordinary user, high-pressure natural gas
A large amount of pressure energy is had lost after voltage regulating station pressure regulation.Plan emptying natural gas amount increase year by year and Zhan always emptying amount 50%
More than.This part is dropped a hint with good recycling basis and recovery value, however enterprise is for all kinds of of station at present
What plan emptying was still taken is that direct emptying burn-up is discharged into atmosphere.
Utility model content
The purpose of this utility model is exactly to solve the above-mentioned problems, to provide a kind of recycling high pressure gas transmission station plan of injection and put
Empty natural gas system.
The utility model can be achieved through the following technical solutions: a kind of injection recycling high pressure gas transmission station plan emptying natural gas
System, it is characterised in that: including blowdown piping, for the working line of conveying high-pressure natural gas, the output of the blowdown piping
End is equipped with the first control valve, and metering sled, the second control valve, pry regulator and third control valve are successively arranged on the working line,
It further include bypass line, the input terminal of bypass line is connected on the working line between metering sled and the second control valve, described
The output end of bypass line is connected on the working line of third control valve output end, is successively arranged the 4th on the bypass line
Control valve, injection sled and the 5th control valve, the injection sled are connect by injection pipeline with blowdown piping, and injection blow-down pipe is used for
Gas in road, the ejector pipe road are equipped with the 6th control valve.
Preferably, the output end of the blowdown piping, which is additionally provided with, releases flare.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1. the utility model, which can not only recycle in high-pressure natural gas, contains huge pressure energy, but also can return
It receives and utilizes a large amount of sales-quality gas, avoid resource significant wastage caused by the emptying of a large amount of sales-quality gas, reduce enterprise
Industry operation cost, reduces economic loss；
2. the utility model actively recycles discarded emptying natural gas, reduces directly emptying burn-up originally and be discharged into
The plan emptying natural gas of atmosphere is polluted caused by green environment；
3. the utility model can be in the case where not consuming energy, by lp venting using venturi injection recovery principle
The pressure of natural gas and high-pressure natural gas is adjusted to OK range, has saved the energy, improves the level of comprehensive utilization of resource.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Appended drawing reference
1 is blowdown piping, and 2 be working line, and 3 be the first control valve, and 4 prize for metering, and 5 be the second control valve, and 6 be pressure regulation
Sled, 7 be third control valve, and 8 be bypass line, and 9 be the 4th control valve, and 10 prize for injection, and 11 be the 5th control valve, and 12 be injection
Pipeline, 13 be the 6th control valve.
Specific embodiment
The embodiments of the present invention are described in further detail with reference to the accompanying drawing.
In the present embodiment, the orientation or position of the instructions such as term " on " "lower" " left side " " right side " " preceding " " rear " " upper end " " lower end "
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing, rather than indication or suggestion meaning
Device or element must have a particular orientation, constructed or operated with specific orientation, therefore should not be understood as practical new to this
The limitation of type.
Referring to Fig. 1, injection recycles a kind of embodiment of high pressure gas transmission station plan emptying natural gas system, including blowdown piping
1, for the working line 2 of conveying high-pressure natural gas, the output end of the blowdown piping 1 is equipped with the first control valve 3, the work
It is successively arranged the 4, second control valve 5 of metering sled, pry regulator 6 and third control valve 7 on pipeline 2, further includes bypass line 8, bypass
The input terminal of pipeline 8 is connected on the working line 2 between metering sled 4 and the second control valve 5, the output of the bypass line 8
End is connected on the working line 2 of 7 output end of third control valve, and the 4th control valve 9 is successively arranged on the bypass line 8, is drawn
Sled 10 and the 5th control valve 11 are penetrated, the injection sled 10 is connect by injection pipeline 12 with blowdown piping 1, and injection blow-down pipe is used for
Gas in road 1, the injection pipeline 12 are equipped with the 6th control valve 13.
Preferably, the output end of the blowdown piping 1, which is additionally provided with, releases flare.
The course of work is as follows:
Under nominal situation, the 6th control valve 13, the 4th control valve 9 and the 5th control valve 11 are closed, the first control valve 3, the
Two control valves 5 and third control valve 7 are opened, and emptying gas collects to be delivered in blowdown piping 1 releases flare；High pressure gas via
Metering sled 4, which is delivered to after pry regulator 6, to be reached convenient pressure and is delivered to downstream user.
Under scheduled overhaul operating condition, natural gas is if desired recycled then without emptying process, the logical of blowdown piping 1 need to only be truncated
The first control valve 3 is closed on road, remaining control valve is opened, and high pressure gas enters injection sled 10 via metering sled 4, at this time air-flow stream
Logical section reduces, and compressed air pressure increases, and a vacuum degree can be generated in the entrance of injection sled 10, by dropping a hint for injection
Body enters injection sled 10, can reach convenient pressure after two bursts of air-flow mixing and is delivered to downstream user.It is passed through if not recycling natural gas
Emptying process is crossed, that is, opens the first control valve 3, closes the 6th control valve 13, emptying natural gas collects through blowdown piping 1 to be delivered to
It releases flare；If not needing recycling emptying gas, normal workflow is enabled.
It should be noted that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, this field
It is to be appreciated by one skilled in the art that can be with the technical solution of the present invention is modified or equivalently replaced, without de-
Objective and range from technical solutions of the utility model, should all cover in the scope of the claims of the utility model.
Claims (2)
1. a kind of injection recycles high pressure gas transmission station plan emptying natural gas system, it is characterised in that: including blowdown piping, for defeated
Send the working line of high-pressure natural gas, the output end of the blowdown piping is equipped with the first control valve, on the working line successively
It further include bypass line, the input terminal connection of bypass line equipped with metering sled, the second control valve, pry regulator and third control valve
On working line between metering sled and the second control valve, the output end of the bypass line is connected to third control valve output
On the working line at end, the 4th control valve, injection sled and the 5th control valve, the injection sled are successively arranged on the bypass line
It is connect by injection pipeline with blowdown piping, for the gas in injection blowdown piping, the ejector pipe road is equipped with the 6th control
Valve processed.
2. injection according to claim 1 recycles high pressure gas transmission station plan emptying natural gas system, it is characterised in that: described
The output end of blowdown piping, which is additionally provided with, releases flare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859896.9U CN208919709U (en) | 2018-11-13 | 2018-11-13 | A kind of injection recycling high pressure gas transmission station plan emptying natural gas system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859896.9U CN208919709U (en) | 2018-11-13 | 2018-11-13 | A kind of injection recycling high pressure gas transmission station plan emptying natural gas system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919709U true CN208919709U (en) | 2019-05-31 |
Family
ID=66711788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821859896.9U Expired - Fee Related CN208919709U (en) | 2018-11-13 | 2018-11-13 | A kind of injection recycling high pressure gas transmission station plan emptying natural gas system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013273A (en) * | 2020-07-30 | 2020-12-01 | 重庆科技学院 | Injection recovery system for planned emptying natural gas of gas transmission station |
-
2018
- 2018-11-13 CN CN201821859896.9U patent/CN208919709U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013273A (en) * | 2020-07-30 | 2020-12-01 | 重庆科技学院 | Injection recovery system for planned emptying natural gas of gas transmission station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190531 Termination date: 20201113 |