CN109469825A - A kind of long distance pipeline natural gas hydrogenation device and method - Google Patents
A kind of long distance pipeline natural gas hydrogenation device and method Download PDFInfo
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- CN109469825A CN109469825A CN201811557887.9A CN201811557887A CN109469825A CN 109469825 A CN109469825 A CN 109469825A CN 201811557887 A CN201811557887 A CN 201811557887A CN 109469825 A CN109469825 A CN 109469825A
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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
-
- 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
- F17D3/12—Arrangements for supervising or controlling working operations for injecting a composition into the line
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/34—Hydrogen distribution
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a kind of long distance pipeline natural gas hydrogenation device and methods, including pipeline portions, PLC controller and safeguard protection part, pipeline portions include Trunk Line, first pipeline, second pipeline and mixing main pipe line, second pipeline and the first piping connection, Trunk Line and the first pipeline are connect with mixing main pipe line, static mixer is provided on mixing main pipe line, PLC controller respectively with Trunk Line and the first piping connection, the hydrogen flowing quantity of the first pipeline is adjusted according to the pressure and flow information of Trunk Line and the first pipeline, it is exported after the static mixer on mixing main pipe line, safeguard protection part includes alarm controller for combustible gas base and positive pressure explosion-proof control system, sound-light alarm can be issued and electric device is protected to be safely operated under explosive gas hazardous environment.The present invention automatically controls simply, and additional amount is big, continuous operation, and additional proportion is stablized, and is uniformly mixed, no emptying pollution, securely and reliably.
Description
Technical field
The invention belongs to gas loading technique fields, and in particular to a kind of long distance pipeline natural gas hydrogenation device and side
Method.
Background technique
Certain hydrogen is added in natural gas, becomes a kind of New-type fuel-hydrogen natural gas, with natural gas and hydrogen
The advantages of, burning velocity is fast, and carbon emission is lower, and it is more environmentally-friendly, it is a kind of new way for coping with oil crisis.Hydrogen compression ratio
It is small, and be not easy to liquefy, cause motor transport cost high, promotes less economical.And long distance pipeline and natural gas is used to convey together
The transportation cost of hydrogen is significantly reduced, the splendid method of hydrogen natural gas penetration is become.Due to hydrogen compared with natural gas more
Explosive, and have a certain impact to tubing.Therefore to hydrogen be added natural gas in ratio, uniformity and safety have compared with
High requirement, Adding Way are crucial.
The country is fewer to the technique study that hydrogen is added in natural gas, but has and the patent of hydrogen is added in gas station,
Also there is the patent of the mixing air in natural gas, it is close with method that principle is added, but be not quite similar.If for long distance pipeline to day
Hydrogen is added in right gas, and treating capacity is small；There are problems that repeatedly being vented；Natural gas and hydrogen are mixed after the bad control of additional proportion and addition
It closes uneven.And natural gas and hydrogen two-way pipeline need to be controlled；Gas pipeline does not bypass, not easy to overhaul；It lacks
Few overpressure relief recirculation line.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of long distance pipeline
Natural gas hydrogenation device and method automatically controls simply, and additional amount is big, continuous operation, and additional proportion is stablized, and is uniformly mixed,
It is polluted without emptying, safe and reliable hydrogenation plant.
The invention adopts the following technical scheme:
A kind of long distance pipeline natural gas hydrogenation device, including pipeline portions, PLC controller and safeguard protection part, pipe
Road part includes Trunk Line, the first pipeline, the second pipeline and mixing main pipe line, the second pipeline and the first piping connection, Trunk Line
Connect with the first pipeline with mixing main pipe line, is provided with static mixer on mixing main pipe line, PLC controller respectively with Trunk Line
With the first piping connection, the hydrogen flowing quantity of the first pipeline, warp are adjusted according to the pressure and flow information of Trunk Line and the first pipeline
It is exported after static mixer on mixing main pipe line, safeguard protection part includes alarm controller for combustible gas base and positive-pressure explosion-proof control
System processed can issue sound-light alarm and electric device is protected to be safely operated under explosive gas hazardous environment.
Specifically, being provided with the second pressure-relief valve on the first pipeline, the second pressure-relief valve is successively through the second filter, second flow
It is connect after meter, adjusting control valve, third block valve and check valve with mixing main pipe line, between second flowmeter and adjusting control valve
It is provided with second pressure transmitter, second flowmeter, second pressure transmitter and adjusting control valve pass through signal control line respectively
It is connect with PLC controller.
Further, device for preparing hydrogen is provided on the second pipeline, the anode and oxygen of device for preparing hydrogen are slow
Tank connection is rushed, cathode is successively connect after hydrogen gas buffer and booster compressor with the second pressure-relief valve on the first pipeline.
Further, hydrogen gas return line line is connected between the second pressure-relief valve and the second filter, on hydrogen gas return line line
Equipped with the first relief valve.
Specifically, being provided with the first block valve on Trunk Line, the first block valve is successively through first filter, first flowmeter
It is connect with after the second block valve with mixing main pipe line, first pressure pick-up is provided between first filter and first flowmeter
Device, first pressure transmitter and first flowmeter pass through signal control line respectively and connect with PLC controller.
Further, alarm controller for combustible gas base is connect with the first block valve.
Specifically, Trunk Line is also connected with bypass line, it is connect by bypass line with mixing main pipe line, on bypass line
It is provided with by-passing valve.
Specifically, static mixer is internally provided with flow-disturbing net.
Specifically, PLC controller is arranged in positive pressure case, air or positive pressure of nitrogen are kept in positive pressure case.
Another technical solution of the invention is a kind of operating method of long distance pipeline natural gas hydrogenation device, including with
Lower step:
The second flow being arranged on the first pressure transmitter and first flowmeter and the first pipeline being arranged on Trunk Line
Meter and second pressure transmitter detect the pressure and flow information of gas pipeline and hydrogen pipeline respectively, then send information
To PLC controller, PLC controller is according to the mark condition flow Q of calculatingbMixed ratio n, the flow Q under standard state are setbIt calculates
It is as follows:
Wherein, Q is the flow under operating condition, m3/ h, is the absolute pressure of medium, and MPa, P are the pressure under standard state, Pb
It is the temperature under mixture condition, K, T for 0.101325MPa, TbIt is 293K, F for the temperature under standard statezFor compressibility factor；
Natural gas and the real-time mixed ratio n ' of hydrogen are as follows:
N '=Qb1/Qb2
Wherein, Qb1、Qb2For the mark condition flow of natural gas and hydrogen, in PLC controller preset mixed ratio be n with
When n ' is unequal, the flow of hydrogen is adjusted by the adjusting control valve on the first pipeline, realizes the mixing of natural gas and hydrogen；When
The flow of first pipeline is excessive or hypertonia, when the ratio of hydrogen and natural gas being caused to be more than mixed ratio, passes through the first pipe
The reflux pipeline releasing pressure automatically reflux of line connection；When discovery combustible gas leakage, alarm controller for combustible gas base issues acousto-optic report
It is alert, and turn off the first block valve on Trunk Line.
Compared with prior art, the present invention at least has the advantages that
A kind of long distance pipeline natural gas hydrogenation device of the present invention realizes human-computer interaction setting control by PLC controller,
Hydrogen combined amount and pressure can be set on demand and realizes accurate control, and keep hydrogen and natural gas complete in static mixer
Mixing, meets maximization of economic benefit, is suitable for different occasions, and can mix according to the different filling proportion requirements of client
It closing, hydrogen can be made by oneself by the method for electrolysis water and be obtained, and it is convenient, flexible, it can also directly be added by external hydrogen pipe network
Enter.And electrolytic water device can be made into skid, easy to remove and installation.And the present apparatus is additionally provided with bypass and hydrogen gas return line
Road, convenient to overhaul, the safety of lifting system.
Further, on the first pipeline, hydrogen filter is to remove solid impurity and particle in hydrogen.By setting
It sets hydrogen flowmeter and pressure transmitter and flow signal and pressure signal is sent to PLC controller.The letter of control valve reception PLC
Number change valve opening to control the mixed proportion of hydrogen and natural gas.After damaged leakage occurs for pipeline, block valve can be according to pipe
The rate of pressure reduction in road realizes being automatically closed for valve.Hydrogen check valve prevents gaseous mixture from flowing backwards into hydrogen gas lines.
Further, the compressor on the second pipeline provides power to pressurized with hydrogen for the transport of hydrogen.Surge tank can be with
The hydrogen that electrolytic water device generates is stored, and it is smaller to can guarantee that the Hydrogen Vapor Pressure into compressor fluctuates.
Further, the hydrogen relief valve on hydrogen gas return line line can be automatically turned on or be closed with pressure change, make pipeline
In pressure maintain stablize, guarantee pipeline safety.
Further, it can guarantee that equipment is not stopped transport, when system is out of service suddenly when overhauling instrument by bypass line
Or when superpressure, natural gas continues downstream transport by bypass line, and automatic back flow is to storage facilities after hydrogen decompression, effectively
Improve system energy efficiency, safety and the applicability of equipment.
Further, the flow-disturbing net in static mixer can guarantee that natural gas and hydrogen are sufficiently mixed.
Further, since electrical equipment may generate electric spark when working normally or temperature increases PLC controller and sets
Setting can prevent electrical equipment to be in contact with explosive gas in positive pressure case, so as to avoid the risk exploded.
Invention additionally discloses a kind of long distance pipeline natural gas hydrogenation methods, in order to realize that natural gas and the real-time of hydrogen mix
Close, and guarantee that treating capacity is enough, using PLC control system, can flow to natural gas and hydrogen and pressure adopted in real time
Collection, calculating and PLC only control hydrogen gas lines, quickly and efficiently.Hydrogen gas return line line is set in hydrogen gas lines, in hydrogen
In the case where gas superpressure or flow, releasing pressure automatically, reflux can be realized by relief valve, guarantees that system being capable of stable operation.When
When combustible gas leakage occurs, alarm controller for combustible gas base effect issues sound-light alarm and automatically shuts down on Trunk Line
First block valve guarantees the safety of system.
In conclusion the present invention automatically controls simply, additional amount is big, continuous operation, and additional proportion is stablized, and is uniformly mixed,
It is polluted without emptying, securely and reliably.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is connection schematic diagram of the present invention.
Wherein: 1. Trunk Lines；2. the first block valve；3. first filter；4. first pressure transmitter；5. first flow
Meter；6. the second block valve；7. static mixer；8. signal control line；9.PLC controller；10. signal wire；11. bypass line；
12. the first pressure-relief valve；13. reflux pipeline；14. bypass valve；15. the first pipeline；16. the second pipeline；17. the second pressure-relief valve；18.
Second filter；19. second flowmeter；20. second pressure transmitter；21. adjusting control valve；22. third block valve；23. single
To valve；24. booster compressor；25. hydrogen gas buffer；26. oxygen surge tank；27. device for preparing hydrogen.
Specific embodiment
In the description of the present invention, it is to be understood that, the orientation of instructions such as term " side ", " one end ", " one side " or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated,
The meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention provides a kind of long distance pipeline natural gas hydrogenation devices, at least gas pipeline, at least all the way all the way
Hydrogen pipeline, at least hydrogen gas return line road and at least all the way mixing general pipeline form line segments, every road natural gas tube road all the way
Equipped with natural gas stop valve, natural gas filter, natural gas flowmeter, every road hydrogen pipeline is equipped with block valve, filter, stream
Meter, adjusting control valve, check valve, every road hydrogen gas return line road are equipped with safety valve, and every road mixing general pipeline is equipped with static mixer.
Using PLC control system by human-computer interaction setting control method, hydrogen combined amount and pressure can be set on demand and realizes essence
Really control, and it is thoroughly mixed hydrogen and natural gas in static mixer, meet maximization of economic benefit；When system is stopped suddenly
Only operation or when superpressure, natural gas continues downstream transport by bypass line, and automatic back flow to storage is set after hydrogen is depressured
It is standby, system energy efficiency, safety and the applicability of equipment are effectively increased, so that mixing apparatus of the present invention can be adapted for not
Same occasion, and can be mixed according to the different filling proportion requirements of client.
Referring to Fig. 1, a kind of long distance pipeline natural gas hydrogenation device of the present invention, including pipeline portions, electrical control division
Point and safeguard protection part, pipeline portions include natural gas Trunk Line 1, the first pipeline of hydrogen 15, the second pipeline of hydrogen 16, hydrogen
Reflux pipeline 13 and mixing main pipe line, natural gas Trunk Line 1, the first pipeline of hydrogen 15 and the second pipeline of hydrogen 16 respectively with mix
Main pipe line connection mixes and is provided with static mixer 7 on main pipe line；Electric control system includes PLC controller 9, PLC controller
9 connect with Trunk Line 1 and the first pipeline 15 respectively, carry out real-time control by the adjusting control valve 21 on the first pipeline 15.
Electric control system, comprising: PLC controller 9 and alternating interface between man and computer, first flowmeter 5, first pressure transmitter
4, second flowmeter 19, second pressure transmitter 20, adjusting control valve 21 data to be transmitted through the network to PLC controller 9 real
Now uniform, safe, mixing in real time, real time data acquisition, automatic calculating and automatic control, full equipment operating in a key, and have and stop
Only key and scram button can also be clicked manually and be filled manually.
Static mixer 7 is internally provided with flow-disturbing net, guarantees that two kinds of gases for entering mixer are sufficiently mixed.
The first block valve 2, first filter 3, first pressure transmitter 4, first flowmeter are disposed on Trunk Line 1
5 and second block valve 6, first pressure transmitter 4 and first flowmeter 5 are connect with PLC controller 9 respectively.
Trunk Line 1 is also connect through bypass line 11 with mixing main pipe line, and by-passing valve 14 is provided on bypass line 11.
The second pressure-relief valve 17, the second filter 18, second flowmeter 19, second pressure are disposed on first pipeline 15
Transmitter 20, adjusting control valve 21, third block valve 22 and check valve 23, second flowmeter 19 and second pressure transmitter 20 divide
It is not connect with PLC controller 9.
It is connected with hydrogen gas return line line 13 between second pressure-relief valve 17 and the second filter 18, is set on hydrogen gas return line line 13
There is the first relief valve 12.
Device for preparing hydrogen 27, hydrogen gas buffer 25 and booster compressor 24 are disposed on second pipeline 16, electricity
The anode connection oxygen surge tank 26 of water device for producing hydrogen 27 is solved, cathode connect with hydrogen gas buffer 25, booster compressor 24 and the
The second pressure-relief valve 17 connection on one pipeline 15.
Safeguard protection part includes alarm controller for combustible gas base and positive pressure explosion-proof control system, combustible gas alarm control
Device is used for fuel gas once a leak occurs, combustible gas probe sound-light alarm, and turns off the first block valve 2, and the function is by combustible gas
Body alarm controller is realized；Positive pressure explosion-proof control system is for protecting electric part to transport safely under explosive gas hazardous environment
Row.
Positive pressure explosion-proof control system uses the BXPK positive voltage type anti-explosion control of Nanyang City Yitong Explosionproof Electric Co., Ltd.'s production
Cabinet processed.
Electric control system is mounted in positive pressure case, keeps air or positive pressure of nitrogen in positive pressure case, including control system with
Human-computer interaction interface, the first pressure transmitter 4, second pressure transmitter 20, first flowmeter 5, second flowmeter 19
It sends data to PLC controller 9 and then controls to adjust control valve 21, realize that natural gas is mixed in a certain ratio with hydrogen.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being described and shown in usually here in attached drawing is real
The component for applying example can be arranged and be designed by a variety of different configurations.Therefore, below to the present invention provided in the accompanying drawings
The detailed description of embodiment be not intended to limit the range of claimed invention, but be merely representative of of the invention selected
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
A kind of long distance pipeline natural gas hydrogenation method of the present invention passes through first pressure transmitter 4, first flowmeter 5, the
Two flowmeters 19, second pressure transmitter 20 detect the pressure and flow of gas pipeline and hydrogen pipeline, PLC controller respectively
9 calculate corresponding mark condition flow Qb, then mixed ratio is set, PLC controller 9 issues signal, passes through the first pipeline 15
Adjusting control valve 21 adjusts the flow of hydrogen, and then realizes the mixing of natural gas and hydrogen.
Flow Q under standard statebIt calculates as follows:
Wherein, Q is the flow under operating condition, m3/ h, is the absolute pressure of medium, and MPa, P are the pressure under standard state, Pb
It is the temperature under mixture condition, K, T for 0.101325MPa, TbIt is 293K, F for the temperature under standard statezFor compressibility factor.
Firstly, first pressure transmitter 4 and second pressure transmitter 20 are respectively by the working condition pressure P of natural gas1And hydrogen
Working condition pressure P2Pass to PLC；First flowmeter 5 and second flowmeter 19 are respectively by the operating condition flow Q of natural gas1And hydrogen
Operating condition flow Q2PLC is passed to, calculates separately out the mark condition flow of natural gas and hydrogen in PLC controller by above-mentioned formula
Qb1、Qb2, it calculates natural gas and the real-time mixed ratio of hydrogen is as follows:
N '=Qb1/Qb2
Assuming that PLC controller can issue signal when preset mixed ratio is n, n ' and n unequal in PLC controller,
Hydrogen control valve 21 is adjusted to adjust hydrogen flowing quantity, finally makes n ' equal with n, the mixed ratio of natural gas and hydrogen satisfaction
It asks.
Bypass line 11 is set on the Trunk Line 1 of natural gas, equipment can be guaranteed when overhauling instrument by by-passing valve 14
It does not stop transport；
When the flow of the first pipeline 15 is excessive or hypertonia, leading to the ratio of hydrogen and natural gas is more than mixed ratio
When, hydrogen can be flowed back by 13 releasing pressure automatically of reflux pipeline, be not vented, safety and environmental protection.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (10)
1. a kind of long distance pipeline natural gas hydrogenation device, which is characterized in that including pipeline portions, PLC controller (9) and safety
Part is protected, pipeline portions include Trunk Line (1), the first pipeline (15), the second pipeline (16) and mixing main pipe line, the second pipeline
(16) it is connect with the first pipeline (15), Trunk Line (1) and the first pipeline (15) are connect with mixing main pipe line, are mixed and are set on main pipe line
It is equipped with static mixer (7), PLC controller (9) is connect with Trunk Line (1) and the first pipeline (15) respectively, according to Trunk Line (1)
The hydrogen flowing quantity that the first pipeline (15) are adjusted with the pressure and flow information of the first pipeline (15), through the static state on mixing main pipe line
Mixer (7) exports afterwards, and safeguard protection part includes alarm controller for combustible gas base and positive pressure explosion-proof control system, can issue
Sound-light alarm simultaneously protects electric device to be safely operated under explosive gas hazardous environment.
2. long distance pipeline natural gas hydrogenation device according to claim 1, which is characterized in that the first pipeline is set on (15)
It is equipped with the second pressure-relief valve (17), the second pressure-relief valve (17) is successively controlled through the second filter (18), second flowmeter (19), adjusting
Valve (21), third block valve (22) and check valve (23) are connect with mixing main pipe line afterwards, second flowmeter (19) and adjusting control
It is provided between valve (21) second pressure transmitter (20), second flowmeter (19), second pressure transmitter (20) and adjusting control
Valve (21) processed is connect by signal control line (8) with PLC controller (9) respectively.
3. long distance pipeline natural gas hydrogenation device according to claim 1 or 2, which is characterized in that the second pipeline (16)
On be provided with device for preparing hydrogen (27), device for preparing hydrogen (27) anode connect with oxygen surge tank (26), cathode
Successively it is connect after hydrogen gas buffer (25) and booster compressor (24) with the second pressure-relief valve (17) on the first pipeline (15).
4. long distance pipeline natural gas hydrogenation device according to claim 2, which is characterized in that the second pressure-relief valve (17) and
It is connected between second filter (18) hydrogen gas return line line (13), hydrogen gas return line line (13) is equipped with the first relief valve
(12)。
5. long distance pipeline natural gas hydrogenation device according to claim 1, which is characterized in that Trunk Line is arranged on (1)
Have the first block valve (2), the first block valve (2) is successively through first filter (3), first flowmeter (5) and the second block valve (6)
It connect, is provided between first filter (3) and first flowmeter (5) first pressure transmitter (4) with mixing main pipe line afterwards, the
One pressure transmitter (4) and first flowmeter (5) are connect by signal control line (8) with PLC controller (9) respectively.
6. long distance pipeline natural gas hydrogenation device according to claim 5, which is characterized in that combustible gas alarm control
Device is connect with the first block valve (2).
7. long distance pipeline natural gas hydrogenation device according to claim 1, which is characterized in that Trunk Line (1) is also connected with
There are bypass line (11), is connect by bypass line (11) with mixing main pipe line, bypass line is provided with by-passing valve on (11)
(14)。
8. long distance pipeline natural gas hydrogenation device according to claim 1, which is characterized in that in static mixer (7)
Portion is provided with flow-disturbing net.
9. long distance pipeline natural gas hydrogenation device according to claim 1, which is characterized in that PLC controller (9) setting
In positive pressure case, air or positive pressure of nitrogen are kept in positive pressure case.
10. a kind of operating method of long distance pipeline natural gas hydrogenation device according to claim 1, which is characterized in that packet
Include following steps:
The second flowmeter that is arranged on the first pressure transmitter and first flowmeter and the first pipeline being arranged on Trunk Line and
Second pressure transmitter detects the pressure and flow information of gas pipeline and hydrogen pipeline respectively, then sends information to
PLC controller, PLC controller is according to the mark condition flow Q of calculatingbMixed ratio n, the flow Q under standard state are setbIt calculates such as
Under:
Wherein, Q is the flow under operating condition, m3/ h, is the absolute pressure of medium, and MPa, P are the pressure under standard state, PbFor
0.101325MPa, T are the temperature under mixture condition, K, TbIt is 293K, F for the temperature under standard statezFor compressibility factor；
Natural gas and the real-time mixed ratio n ' of hydrogen are as follows:
N '=Qb1/Qb2
Wherein, Qb1、Qb2For the mark condition flow of natural gas and hydrogen, preset mixed ratio is n and n ' not phase in PLC controller
Whens equal, the flow of hydrogen is adjusted by the adjusting control valve on the first pipeline, realizes the mixing of natural gas and hydrogen；When the first pipe
The flow of line is excessive or hypertonia, when the ratio of hydrogen and natural gas being caused to be more than mixed ratio, passes through the first pipeline and connects
Reflux pipeline releasing pressure automatically reflux；When discovery combustible gas leakage, alarm controller for combustible gas base issues sound-light alarm, and closes
The first block valve on disconnected Trunk Line.
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| CN201811557887.9A CN109469825A (en) | 2018-12-19 | 2018-12-19 | A kind of long distance pipeline natural gas hydrogenation device and method |
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| CN201811557887.9A CN109469825A (en) | 2018-12-19 | 2018-12-19 | A kind of long distance pipeline natural gas hydrogenation device and method |
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Cited By (8)
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| CN112412395A (en) * | 2020-12-01 | 2021-02-26 | 中国石油天然气集团有限公司 | High-pressure gas-liquid mixing injection control system |
| CN112728410A (en) * | 2020-12-31 | 2021-04-30 | 湖南理工学院 | Method and equipment for accurately controlling natural gas hydrogen-loading ratio |
| CN113390019A (en) * | 2021-07-02 | 2021-09-14 | 中冶西北工程技术有限公司 | Natural gas hydrogen mixing system |
| CN113405025A (en) * | 2021-06-17 | 2021-09-17 | 深圳市燃气集团股份有限公司 | Stable natural gas hydrogen-loading control method and application |
| CN114183694A (en) * | 2021-11-04 | 2022-03-15 | 北京卫星制造厂有限公司 | Gas circuit pressure regulating device |
| CN114636529A (en) * | 2022-05-17 | 2022-06-17 | 浙江大学 | Multifunctional hydrogen conveying pipeline test system |
| CN114877248A (en) * | 2022-05-12 | 2022-08-09 | 中国华能集团清洁能源技术研究院有限公司 | Natural gas hydrogen-loading control system and control method |
| EP4047260A1 (en) * | 2021-02-18 | 2022-08-24 | Linde GmbH | Method for controlling or regulating the hydrogen content of a natural gas transported through a natural gas network |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323650A (en) * | 2000-01-13 | 2001-11-28 | 普莱克斯技术有限公司 | Gas mixing device |
| DE102007022966A1 (en) * | 2007-05-16 | 2008-11-20 | Linde Ag | Gas and/or gas mixture e.g. hydrogen and natural gas, mixing device, has cathedral pressure controller arranged in supply line, connected upstream to regulating valve and controlled over pressure that is controlled in supply line |
| CN103285756A (en) * | 2013-05-24 | 2013-09-11 | 中煤邯郸设计工程有限责任公司 | Gas mixing device |
| CN204901324U (en) * | 2015-07-09 | 2015-12-23 | 上海舜华新能源系统有限公司 | Hydrogen and natural gas mix filling provision in real time |
| RU2600484C1 (en) * | 2015-05-22 | 2016-10-20 | Общество с ограниченной ответственностью "Автоматизированные системы смешения природного газа с атмосферным воздухом | Modular automated system for mixing natural gas with atmospheric air |
| CN107875874A (en) * | 2017-12-15 | 2018-04-06 | 天津市益斯达燃气设备有限公司 | A kind of follow-up flow air mixing equipment for being used to substitute compressed air |
| CN108458251A (en) * | 2018-06-08 | 2018-08-28 | 周先林 | Feeding mechanism containing oxygen gas mixture and intermittence low-oxygen Supply Method |
| CN208170386U (en) * | 2018-03-30 | 2018-11-30 | 博爱新开源医疗科技集团股份有限公司 | A kind of natural gas and hydrogen mixed combustion apparatus |
-
2018
- 2018-12-19 CN CN201811557887.9A patent/CN109469825A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323650A (en) * | 2000-01-13 | 2001-11-28 | 普莱克斯技术有限公司 | Gas mixing device |
| DE102007022966A1 (en) * | 2007-05-16 | 2008-11-20 | Linde Ag | Gas and/or gas mixture e.g. hydrogen and natural gas, mixing device, has cathedral pressure controller arranged in supply line, connected upstream to regulating valve and controlled over pressure that is controlled in supply line |
| CN103285756A (en) * | 2013-05-24 | 2013-09-11 | 中煤邯郸设计工程有限责任公司 | Gas mixing device |
| RU2600484C1 (en) * | 2015-05-22 | 2016-10-20 | Общество с ограниченной ответственностью "Автоматизированные системы смешения природного газа с атмосферным воздухом | Modular automated system for mixing natural gas with atmospheric air |
| CN204901324U (en) * | 2015-07-09 | 2015-12-23 | 上海舜华新能源系统有限公司 | Hydrogen and natural gas mix filling provision in real time |
| CN107875874A (en) * | 2017-12-15 | 2018-04-06 | 天津市益斯达燃气设备有限公司 | A kind of follow-up flow air mixing equipment for being used to substitute compressed air |
| CN208170386U (en) * | 2018-03-30 | 2018-11-30 | 博爱新开源医疗科技集团股份有限公司 | A kind of natural gas and hydrogen mixed combustion apparatus |
| CN108458251A (en) * | 2018-06-08 | 2018-08-28 | 周先林 | Feeding mechanism containing oxygen gas mixture and intermittence low-oxygen Supply Method |
Non-Patent Citations (1)
| Title |
|---|
| 杨有涛: "《气体流量计》", vol. 1, 中国计量出版社, pages: 75 - 76 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412395A (en) * | 2020-12-01 | 2021-02-26 | 中国石油天然气集团有限公司 | High-pressure gas-liquid mixing injection control system |
| CN112728410A (en) * | 2020-12-31 | 2021-04-30 | 湖南理工学院 | Method and equipment for accurately controlling natural gas hydrogen-loading ratio |
| EP4047260A1 (en) * | 2021-02-18 | 2022-08-24 | Linde GmbH | Method for controlling or regulating the hydrogen content of a natural gas transported through a natural gas network |
| CN113405025A (en) * | 2021-06-17 | 2021-09-17 | 深圳市燃气集团股份有限公司 | Stable natural gas hydrogen-loading control method and application |
| CN113390019A (en) * | 2021-07-02 | 2021-09-14 | 中冶西北工程技术有限公司 | Natural gas hydrogen mixing system |
| CN114183694A (en) * | 2021-11-04 | 2022-03-15 | 北京卫星制造厂有限公司 | Gas circuit pressure regulating device |
| CN114183694B (en) * | 2021-11-04 | 2024-03-26 | 北京卫星制造厂有限公司 | Gas circuit pressure regulating device |
| CN114877248A (en) * | 2022-05-12 | 2022-08-09 | 中国华能集团清洁能源技术研究院有限公司 | Natural gas hydrogen-loading control system and control method |
| CN114636529A (en) * | 2022-05-17 | 2022-06-17 | 浙江大学 | Multifunctional hydrogen conveying pipeline test system |
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