CN209540521U - Natural gas pressure regulating station supercharger by-pass unit - Google Patents
Natural gas pressure regulating station supercharger by-pass unit Download PDFInfo
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- CN209540521U CN209540521U CN201920053784.2U CN201920053784U CN209540521U CN 209540521 U CN209540521 U CN 209540521U CN 201920053784 U CN201920053784 U CN 201920053784U CN 209540521 U CN209540521 U CN 209540521U
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Abstract
This application discloses a kind of natural gas pressure regulating station supercharger by-pass units, including gateway unit, filter element, pressure regulation unit, booster unit and by-pass unit；Gateway unit, filter element, pressure regulation unit and booster unit are sequentially connected；By-pass unit is connected between the outlet of pressure regulation unit and booster unit outlet.By-pass unit is set after voltage regulating station filter element, makes natural gas bypass pressure regulation unit and booster unit, voltage-regulating system is carried by combustion engine and carries out pressure stabilizing, direct gas supply of the upstream pipe network to combustion engine is realized, company's unit operational reliability can be significantly greatly increased.Meanwhile if natural gas upstream pipe network supply gas pressure can be run continually and steadily in 3.6MPa or more in the state of not putting into operation supercharger, this will greatly reduce auxiliary power consumption rate of power plant, improve unit performance driving economy.
Description
Technical field
The application belongs to natural gas pressure regulating station technical field, and in particular to a kind of supercharger bypass in natural gas pressure regulating station is single
Member.
Background technique
It is combustion engine after booster unit in existing natural gas pressure regulating station, combustion engine carrys out the tune of atmospheric pressure to natural gas
Whole ability and regulate the speed limited, if supercharger breaks down, combustion engine can not make effective adjustment, combustion engine to gas pressure
It will necessarily load down operation even chaser.Simultaneously because supercharger and frequency converter are mostly imported product, producer's response speed is slow, right
Not in time, spare part delivery cycle is long for the technical support of defect processing, may influence heat supply because of supercharger reason in heat supply period
Reliability.
Applicant Tianjin Chen Tong Thermal Power Co., Ltd is since first set unit regulation in 2014 is run, successively due to pressurization
Machine failure leads to unit outage 7 times, load down is run 4 times, has resulted in significant impact to unit continuous and steady operation.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, it is single to be intended to provide a kind of bypass of natural gas pressure regulating station supercharger
Member.
The application provides a kind of natural gas pressure regulating station supercharger by-pass unit, including gateway unit, filter element, pressure regulation list
Member, booster unit and by-pass unit；Gateway unit, filter element, pressure regulation unit and booster unit are sequentially connected；Bypass is single
Member is connected between the outlet of pressure regulation unit and booster unit outlet.By-pass unit is set after voltage regulating station filter element, makes day
Right gas bypass pressure regulation unit and booster unit, carry voltage-regulating system by combustion engine and carry out pressure stabilizing, realize upstream pipe network to combustion engine
It directly supplies, company's unit operational reliability can be significantly greatly increased.Meanwhile if natural gas upstream pipe network supply gas pressure is continual and steady
It in 3.6MPa or more, can be run in the state of not putting into operation supercharger, this will greatly reduce auxiliary power consumption rate of power plant, improve unit
Performance driving economy.
Further, booster unit is one or more；By-pass unit include bypass main pipe and with booster unit number
Measure corresponding bypass branch；Bypass main pipe is connected at filtration unit outlet；Bypass branch is connected to corresponding booster unit
Between outlet and bypass main pipe.
Further, by-pass unit further includes the diffusion system being connected in bypass main pipe.
Further, diffusion system includes release ball valve and bleeding stop valve.
Further, by-pass unit further includes the nitrogen charging device being connected in bypass main pipe.
Further, nitrogen charging device includes nitrogen charging ball valve and the nitrogen charging connector with check function.
Further, by-pass unit further includes the pressure monitor system being connected in bypass branch.
Further, pressure monitor system includes pressure on-line monitoring transmitter and pressure gauge.
Further, bypass main pipe is equipped with the pipeline support for being used to support pipeline.
The application has the advantages and positive effects of: since the application uses technical solution as above, such as natural gas upstream
Supply gas pressure is sufficiently high, can supply under conditions of supercharger is not run to combustion engine, can reduce unit chaser possibility, drop simultaneously
Low unit generation station service power consumption rate.4 chasers, 1,680,000 yuan of each chaser direct economic loss are reduced altogether every year according to two sets of units
It calculates, 6,720,000 yuan of economic loss or more can be reduced.Out of service, every supercharger converting operation according to annual four superchargers
Average electrical power is 1000kW, and every supercharger hours of operation 6900h (average annual rate of load condensate 65%) then saves station service every year
27600000 kWh reduce station service power consumption rate about 0.33%, save 15,260,000 yuan of combustion gas cost in year.To sum up add up to annual economic benefit total
About 21,980,000 yuan.
The technical issues of in addition to the application described above solution, constitutes the technical characteristic of technical solution and by these
Except advantage brought by the technical characteristic of technical solution, wrapped in other technologies problem that the application can solve, technical solution
Advantage brought by the other technical characteristics contained and these technical characteristics, makees further details of hereinafter in conjunction with attached drawing
Explanation.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is supercharger by-pass unit structural schematic diagram in natural gas pressure regulating station provided by the embodiments of the present application；
Fig. 2 is supercharger by-pass unit structural block diagram in natural gas pressure regulating station provided by the embodiments of the present application；
Fig. 3 is by-pass unit structure diagram provided by the embodiments of the present application.
In figure: 100, gateway unit；200, filter element；300, pressure regulation unit；400, booster unit；500, bypass is single
Member；510, main pipe is bypassed；520, bypass branch；530, diffusion system；531, ball valve is diffused；532, bleeding stop valve；533, it puts
Dissipate tower；540, nitrogen charging device；541, nitrogen charging ball valve；542, nitrogen charging non-return valve；550, pressure monitor system；551, pressure is examined online
Survey transmitter.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to invention is illustrated only in attached drawing.It is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments
The application.
Fig. 1 and Fig. 2 are please referred to, the present embodiment provides a kind of natural gas pressure regulating station supercharger by-pass units, including entrance list
Member 100, filter element 200, pressure regulation unit 300, booster unit 400 and by-pass unit 500.Wherein, gateway unit 100, mistake
Filter unit 200, pressure regulation unit 300 and booster unit 400 are sequentially connected.After existing natural gas pressure regulating station filter element 200
It is connect at spare interface and draws a DN600 pipeline, maked somebody a mere figurehead laying to 4 superchargers and export, be connected with supercharger outlet spare interface,
Two DN300 manual ball valves are arranged in every road supercharger branch pipe, constitute by-pass unit 500.Section of tubing must be increased to newly-increased pipeline
Support.
By-pass unit is set after voltage regulating station filter element, makes natural gas bypass pressure regulation unit and booster unit, by firing
Machine carries voltage-regulating system and carries out pressure stabilizing, realizes direct gas supply of the upstream pipe network to combustion engine, and the operation of company's unit can be significantly greatly increased can
By property.According to a set of unit half a year commissioning test experience, natural gas upstream pipe network running pressure it is relatively stable (3.6MPa~
3.7MPa), only there is a situation where a pressure reduce suddenly.If natural gas upstream pipe network supply gas pressure continually and steadily exists
3.6MPa or more can be run in the state of not putting into operation supercharger, this will greatly reduce auxiliary power consumption rate of power plant, improve unit fortune
Row economy.When natural gas upstream official website, supply gas pressure is lowered so that suddenly when cannot directly supply to combustion engine, starts pressure regulation
Unit and booster unit, then by-pass unit is accordingly turned off, and is supplied again to combustion engine after being pressurized by booster unit.
Booster unit 400 is one or more, and in the present embodiment, booster unit 400 is parallel with one another 4；
Meanwhile pressure regulation unit 300 is also parallel with one another 4, and 4 pressure regulation units 300 are connected with 4 booster units 400 respectively.
By-pass unit 500 includes a bypass main pipe 510 and 4 piece bypass branch 520.Bypass 510 one end of main pipe is connected to filter element
200 exits, other end closing；4 520 one end of bypass branch are connect with bypass main pipe 510, and the other end is separately connected 4
The outlet of booster unit 400.In the application other embodiments, booster unit and pressure regulation unit can be one, this
When only need a bypass branch, can also only set a bypass duct without setting up bypass main pipe and bypass branch separately.
Please further refer to Fig. 3, by-pass unit 500 further includes the diffusion system 530 being connected in bypass main pipe 510, fills
Nitrogen device 540, and the pressure detecting system 550 being connected in bypass branch 520.
The by-pass unit nitrogen charging device 540 newly set includes that a nitrogen charging ball valve 541 and one have nitrogen charging non-return valve 542
Nitrogen charging connector.Manual diffusion system 530 diffuses 531, manual bleeding stop valves 532 of ball valve and respective accessory by one manually
It constitutes.The manual diffusion system pipeline of by-pass unit is connected to booster unit diffusion system pipeline, shares diffusing tower 533.It fills
The setting position of nitrogen and bleeding device can guarantee that the natural gas in supercharger by-pass unit can be replaced completely.
Install pressure monitoring device 550 additional in bypass branch 520, including one piece of pressure monitors transmitter 551 on-line, is furnished with
Corresponding gauge valve, ball valve.The valve position remote transfer signal of each pressure transmitter and manual ball valve is responsible for connecing by thermal control leads to DCS
(dcs), and DCS picture is accordingly modified.
Main pipe carries out piping assembling to greatest extent in manufactory, is installed to scene, pressure transmitter tube socket palpus
It is welded after being open to existing pipeline at scene.Site welding pipeline carries out airtight after postwelding must carry out non-destructive testing qualification
Property test, brushing anti-decaying paint, finishing coat after pass the test.Equipment design parameter is identical as natural gas pressure regulating station design parameter.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (9)
1. a kind of natural gas pressure regulating station supercharger by-pass unit, which is characterized in that including gateway unit, filter element, pressure regulation list
Member, booster unit and by-pass unit；The gateway unit, filter element, pressure regulation unit and booster unit are sequentially connected；Institute
By-pass unit is stated to be connected between the pressure regulation unit outlet and booster unit outlet.
2. natural gas pressure regulating station supercharger by-pass unit according to claim 1, which is characterized in that the booster unit
For one or more；The by-pass unit includes bypass main pipe and bypass branch corresponding with the booster unit quantity；Institute
Bypass main pipe is stated to be connected at the filtration unit outlet；The bypass branch is connected to the corresponding booster unit outlet
Between the bypass main pipe.
3. natural gas pressure regulating station supercharger by-pass unit according to claim 2, which is characterized in that the by-pass unit is also
Including the diffusion system being connected in the bypass main pipe.
4. natural gas pressure regulating station supercharger by-pass unit according to claim 3, which is characterized in that the diffusion system packet
Include release ball valve and bleeding stop valve.
5. natural gas pressure regulating station supercharger by-pass unit according to claim 2, which is characterized in that the by-pass unit is also
Including the nitrogen charging device being connected in the bypass main pipe.
6. natural gas pressure regulating station supercharger by-pass unit according to claim 5, which is characterized in that the nitrogen charging device packet
Include nitrogen charging ball valve and the nitrogen charging connector with check function.
7. natural gas pressure regulating station supercharger by-pass unit according to claim 2, which is characterized in that the by-pass unit is also
Including the pressure monitor system being connected in the bypass branch.
8. natural gas pressure regulating station supercharger by-pass unit according to claim 7, which is characterized in that the pressure monitoring system
System includes online monitoring transducer and pressure gauge.
9. natural gas pressure regulating station supercharger by-pass unit according to claim 2, which is characterized in that in the bypass main pipe
Equipped with the pipeline support for being used to support pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920053784.2U CN209540521U (en) | 2019-01-14 | 2019-01-14 | Natural gas pressure regulating station supercharger by-pass unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920053784.2U CN209540521U (en) | 2019-01-14 | 2019-01-14 | Natural gas pressure regulating station supercharger by-pass unit |
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| CN209540521U true CN209540521U (en) | 2019-10-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985218A (en) * | 2019-12-24 | 2020-04-10 | 中国东方电气集团有限公司 | Method and system for adjusting pressure of supercharger of gas turbine |
| CN113266764A (en) * | 2021-04-19 | 2021-08-17 | 华电电力科学研究院有限公司 | Natural gas pressure regulating station and method for supercritical circulating fluidized bed boiler gas supply |
-
2019
- 2019-01-14 CN CN201920053784.2U patent/CN209540521U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985218A (en) * | 2019-12-24 | 2020-04-10 | 中国东方电气集团有限公司 | Method and system for adjusting pressure of supercharger of gas turbine |
| CN113266764A (en) * | 2021-04-19 | 2021-08-17 | 华电电力科学研究院有限公司 | Natural gas pressure regulating station and method for supercritical circulating fluidized bed boiler gas supply |
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