CN204267159U - A kind of natural gas boosting system - Google Patents
A kind of natural gas boosting system Download PDFInfo
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- CN204267159U CN204267159U CN201420632869.3U CN201420632869U CN204267159U CN 204267159 U CN204267159 U CN 204267159U CN 201420632869 U CN201420632869 U CN 201420632869U CN 204267159 U CN204267159 U CN 204267159U
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Abstract
The utility model relate to a kind of natural gas boosting system for Gas-steam Combined Cycle power station, comprise natural gas processing station, natural gas centrifugal compressor, diffusing tower and gas turbine, be provided with at least one buffering branch road, buffering branch road is connected with pressurization system by pipeline; A kind of natural gas boosting system buffering branch road, be provided with at least one reciprocating natural gas compressor and natural gas high pressure knock out drum, Reciprocating Natural Gas Compressor to be exported with two centrifugal natural gas compressors by pipeline and is connected, natural gas high pressure knock out drum one end to be exported with Reciprocating Natural Gas Compressor by pipeline and is connected, the other end is connected with diffusing tower and gas turbine respectively by two pipelines, compare traditional product, effectively prevent combustion engine load from reducing, ensure unit safety operation, prevent power network fluctuation; When the positive fault in natural gas processing station causes the of short duration stopping of rock gas for seasonable, buffer system is combustion engine air feed, ensures that unit runs, continuously for failture evacuation gets the time.
Description
Technical field
The utility model relate to a kind of natural gas boosting system with buffer system for Gas-steam Combined Cycle power station.
Background technique
Domestic Gas-steam Combined Cycle power station unit main fuel is rock gas, because gas turbine requires higher to gas pressure, usual gas supplying pressure is difficult to meet burning machine inlet requirement, and need increases natural gas compressor to improve gas pressure behind natural gas processing station.Traditional natural gas boosting system arranges two centrifugal compressors, operation, one for subsequent use, there is a lot of shortcoming in this system, during a compressor fault, an other compressor needs the long period from starting to oepration at full load; Compressor easily causes combustion engine load to decline when switching, and even shuts down, affects safe operation of power plant, cause power network fluctuation; After the of short duration stopping supply of emergency rock gas, unit must be shut down.
Summary of the invention
The purpose of this utility model is: provide a kind of natural gas boosting system with buffer system for Gas-steam Combined Cycle power station.
The technological scheme of the natural gas boosting system with buffering branch road of the present utility model is: a kind of natural gas boosting system, comprise natural gas processing station, natural gas centrifugal compressor, diffusing tower and gas turbine, be provided with at least one buffering branch road, buffering branch road is connected with pressurization system by pipeline; A kind of natural gas boosting system buffering branch road, be provided with at least one reciprocating natural gas compressor and natural gas high pressure knock out drum, Reciprocating Natural Gas Compressor to be exported with two centrifugal natural gas compressors by pipeline and is connected, natural gas high pressure knock out drum one end to be exported with Reciprocating Natural Gas Compressor by pipeline and is connected, and the other end is connected with diffusing tower and gas turbine respectively by two pipelines.
Optimally, Reciprocating Natural Gas Compressor power is less than the power of centrifugal compressor in pressurization system.
Optimally, Reciprocating Natural Gas Compressor is connected with two centrifugal natural gas compressors on pipeline and at least arranges a separating valve.
Optimally, natural gas high pressure knock out drum entry end pipeline arranges at least one separating valve and safety check.
Optimally, natural gas high pressure knock out drum outlet end arranges at least one separating valve and safety valve.
The technical program is provided with at least one buffering branch road, and compare traditional product, when a centrifugal compressor fault, now buffer system is combustion engine air feed, effectively prevents combustion engine load from reducing, and ensures unit safety operation, prevents power network fluctuation; When the positive fault in natural gas processing station causes the of short duration stopping of rock gas for seasonable, buffer system is combustion engine air feed, ensures that unit runs, continuously for failture evacuation gets the time.
The buffering branch road of the technical program is provided with at least one reciprocating natural gas compressor and natural gas high pressure knock out drum, improves the shock-absorbing capacity of buffer system, makes the operation of system more stable.
The Reciprocating Natural Gas Compressor power of the technical program is less than the power of centrifugal compressor in pressurization system, makes the startup of buffering branch road more smooth and easy, improves the utilization ratio of buffering branch road.
The technical program Miniature reciprocating natural gas compressor is connected with two centrifugal natural gas compressors on pipeline and at least arranges a separating valve, effectively prevents natural gas leaking, and Safety performance improves.
The technical program is adopted on natural gas high pressure knock out drum entry end pipeline and is arranged at least one separating valve and safety check, improves security of system performance simultaneously, effectively prevents gas backstreaming in natural gas high pressure knock out drum, stablize knock out drum pressure.
The technical program natural gas high pressure knock out drum outlet end arranges at least one separating valve and safety valve, prevents rock gas from spilling in air, effectively improves security of system.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of structure of the present utility model;
Description of reference numerals:
1-natural gas high pressure knock out drum; 2-safety valve; 3-separating valve; 4-safety check; 5-Miniature reciprocating natural gas compressor; 6-diffusing tower; 7-centrifugal natural gas compressor; 8-gas turbine.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
Embodiment 1:
As shown in the figure, the technological scheme of natural gas boosting system buffering branch road of the present utility model is: a kind of natural gas boosting system, comprise natural gas processing station, natural gas centrifugal compressor, diffusing tower and gas turbine, be provided with at least one buffering branch road, buffering branch road is connected with pressurization system by pipeline; A kind of natural gas boosting machine buffering branch road, be provided with at least one reciprocating natural gas compressor and natural gas high pressure knock out drum, Reciprocating Natural Gas Compressor to be exported with two centrifugal natural gas compressors by pipeline and is connected, natural gas high pressure knock out drum one end to be exported with Reciprocating Natural Gas Compressor by pipeline and is connected, and the other end is connected with diffusing tower and gas turbine respectively by two pipelines; Reciprocating Natural Gas Compressor power is less than the power of centrifugal compressor in pressurization system; Reciprocating Natural Gas Compressor is connected with two centrifugal natural gas compressors on pipeline and at least arranges a separating valve; Natural gas high pressure knock out drum entry end pipeline arranges at least one separating valve and safety check; Natural gas high pressure knock out drum outlet end arranges at least one separating valve and safety valve.
Natural gas boosting machine buffering branch road of the present utility model, when unit normally runs, on centrifugal natural gas compressor outlet line to Reciprocating Natural Gas Compressor pipeline, separating valve is opened, and Miniature reciprocating natural gas compressor runs, and rock gas enters natural gas high pressure knock out drum after supercharging.Miniature reciprocating natural gas compressor outlet line arranges safety check, can prevent high-pressure natural gas from refluxing.Natural gas high pressure knock out drum is arranged pressure gauge and transmitter, and be connected with control system, after knock out drum reaches setting pressure, Miniature reciprocating natural gas compressor is out of service, and the inflation of natural gas high pressure knock out drum is complete.Natural gas high pressure knock out drum arranges safety valve, and when high-pressure buffer pressure tank exceedes setting pressure, safety valve is opened, and rock gas is disposed to diffusing tower by diffusing pipeline, ensures high-pressure buffering pot safety.When another centrifugal natural gas compressor of centrifugal natural gas compressor fault can not start immediately, now main natural gas line pressure reduces, high-pressure buffering pot outlet separating valve is opened immediately, high-pressure buffering pot supplies rock gas to combustion engine, effectively prevent combustion engine load from reducing, ensure combustion engine safe operation at full capacity.Simultaneously as supplied seasonable because of the of short duration stopping of natural gas processing station emergency rock gas, high-pressure buffering pot can be also that failture evacuation is raced against time for combustion engine air feed.
Embodiment 2:
The difference of the present embodiment and embodiment 1 is, the Miniature reciprocating natural gas compressor of the present embodiment is connected with two centrifugal natural gas compressors on pipeline and arranges four separating valves.
Embodiment 3:
The difference of the present embodiment and embodiment 1 is, the natural gas high pressure knock out drum entry end pipeline of the present embodiment arranges two separating valves and safety check.
Embodiment 4:
The difference of the present embodiment and embodiment 1 is, the natural gas boosting system of the present embodiment has additional two buffering branch roads.
Claims (5)
1. a natural gas boosting system, comprise natural gas processing station, natural gas centrifugal compressor, diffusing tower and gas turbine, it is characterized in that: have additional at least one buffering branch road, buffering branch road is connected with pressurization system by pipeline, buffering branch road is provided with at least one reciprocating natural gas compressor and natural gas high pressure knock out drum, Reciprocating Natural Gas Compressor to be exported with two centrifugal natural gas compressors by pipeline and is connected, natural gas high pressure knock out drum one end to be exported with Reciprocating Natural Gas Compressor by pipeline and is connected, the other end is connected with diffusing tower and gas turbine respectively by two pipelines.
2. natural gas boosting system according to claim 1, is characterized in that: Reciprocating Natural Gas Compressor power is less than the power of centrifugal compressor in pressurization system.
3. natural gas boosting system according to claim 1 and 2, is characterized in that: Reciprocating Natural Gas Compressor is connected with two centrifugal natural gas compressors on pipeline and at least arranges a separating valve.
4. natural gas boosting system according to claim 1, is characterized in that: natural gas high pressure knock out drum entry end pipeline is arranged at least one separating valve and at least one safety check.
5. the natural gas boosting system according to claim 1 or 4, is characterized in that: natural gas high pressure knock out drum outlet end arranges at least one separating valve and at least one safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632869.3U CN204267159U (en) | 2014-10-29 | 2014-10-29 | A kind of natural gas boosting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632869.3U CN204267159U (en) | 2014-10-29 | 2014-10-29 | A kind of natural gas boosting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267159U true CN204267159U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420632869.3U Active CN204267159U (en) | 2014-10-29 | 2014-10-29 | A kind of natural gas boosting system |
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| CN (1) | CN204267159U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740933A (en) * | 2017-11-16 | 2018-02-27 | 大连派思燃气系统股份有限公司 | Storage device for gas turbine fuel gas |
| CN113586535A (en) * | 2021-07-13 | 2021-11-02 | 北京中竞国际能源科技有限公司 | Partial pressurization system |
-
2014
- 2014-10-29 CN CN201420632869.3U patent/CN204267159U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740933A (en) * | 2017-11-16 | 2018-02-27 | 大连派思燃气系统股份有限公司 | Storage device for gas turbine fuel gas |
| CN113586535A (en) * | 2021-07-13 | 2021-11-02 | 北京中竞国际能源科技有限公司 | Partial pressurization system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |