CN114963017A - Natural gas line hydrogen-mixing comprehensive experiment system device - Google Patents
Natural gas line hydrogen-mixing comprehensive experiment system device Download PDFInfo
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- 238000002474 experimental method Methods 0.000 title claims abstract description 202
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 192
- 239000003345 natural gas Substances 0.000 title claims abstract description 96
- 238000002156 mixing Methods 0.000 title description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 104
- 239000001257 hydrogen Substances 0.000 claims abstract description 104
- 230000001105 regulatory effect Effects 0.000 claims description 38
- 239000000463 material Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- 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
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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
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- 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
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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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Abstract
The invention discloses a natural gas pipeline hydrogen-loading comprehensive experiment system device, which comprises: the system comprises a hydrogen source system, a high-pressure natural gas source, a hydrogen loading machine and an experimental pipeline system, wherein the hydrogen source system and the high-pressure natural gas source are both connected with an inlet of the hydrogen loading machine, and the experimental pipeline system is connected with an outlet of the hydrogen loading machine; the experimental piping system comprises: high-pressure experiment pipe-line system, time high-pressure experiment pipe-line system, middling pressure experiment pipe-line system and low pressure experiment pipe-line system, low pressure experiment pipe-line system and end user headtotail, high-pressure experiment pipe-line system time high-pressure experiment pipe-line system middling pressure experiment pipe-line system and all including parallelly connected 5 way pipeline branch roads that set up in the low pressure experiment pipe-line system. The invention can simultaneously carry out the natural gas pipeline hydrogen-loading experiment under various pressure working conditions, adjust the experiment pressure quantity according to the actual requirement and improve the experiment efficiency.
Description
Technical Field
The invention relates to the technical field of natural gas pipeline hydrogen loading, in particular to a natural gas pipeline hydrogen loading comprehensive experiment system device.
Background
Under the target background of 'double carbon', in order to guarantee the energy demand, the energy structure is developing towards low carbonization and zero carbonization, and renewable clean energy such as photovoltaic energy, wind power energy and the like are coming to the rapid development opportunity. Carbon emission is avoided in the hydrogen energy utilization process, and meanwhile, the hydrogen can also be used as an energy storage medium of unstable renewable energy sources such as photovoltaic energy, wind power energy and the like, so that the large-scale industrial development of the renewable energy sources is promoted. The hydrogen energy needs to be industrially applied and the problem of storage and transportation of the hydrogen gas needs to be solved.
Compared with the technologies of high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage, organic hydrogen storage and the like, the pipeline hydrogen mixing utilizes the existing natural gas pipeline, and the large-scale and low-cost transportation of hydrogen can be realized through partial mixing of hydrogen and natural gas. To realize large-scale remote application of natural gas pipeline hydrogen doping, the problem of hydrogen doping of town gas pipeline systems is firstly solved. However, the natural gas pipeline is more hydrogen-doped for the existing gas pipeline network system, and the actual conditions of the existing pipeline system in each area are different greatly, such as pipe material, pipe age, pressure, surrounding environment, corrosion condition and the like, and the natural gas pipeline needs to be researched and evaluated in a targeted manner. Even if aiming at a newly-built pipeline system, the soil condition, the rock stratum structure and the climate condition of each urban pipeline are different, and the hydrogen can not be directly mixed. Therefore, before pipeline hydrogen loading is carried out, scientific tests are required to be carried out on pipelines and parts through a systematic experimental test platform, and on the basis, a natural gas pipeline hydrogen loading scheme is made in a targeted mode.
Because town gas pipeline system often is equipped with pressure more than 4 grades, the tubular product kind that pressure at all levels used is also very complicated, simultaneously, will study the influence circumstances of pipeline hydrogen-blending to active service gas pipeline, often need carry out longer time's experiment, and town gas hydrogen-blending experimental system among the prior art is experimental once and all can only be tested a pressure operating mode, leads to the experimental efficiency lower.
Thus, there is a need for improvements and enhancements in the art.
Disclosure of Invention
The invention aims to solve the technical problem that a comprehensive experiment system device for natural gas pipeline hydrogen mixing is provided aiming at overcoming the defects in the prior art, and the problem that the urban gas hydrogen mixing experiment system in the prior art can only test one pressure working condition in one experiment, so that the experiment efficiency is low is solved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
in a first aspect, the invention provides a natural gas pipeline hydrogen-loading comprehensive experiment system device, which is characterized by comprising: the system comprises a hydrogen source system, a high-pressure natural gas source, a hydrogen loading machine and an experimental pipeline system, wherein the hydrogen source system and the high-pressure natural gas source are both connected with an inlet of the hydrogen loading machine, and the experimental pipeline system is connected with an outlet of the hydrogen loading machine; the experimental piping system comprises: high-pressure experiment pipe-line system, inferior high-pressure experiment pipe-line system, middling pressure experiment pipe-line system and low pressure experiment pipe-line system, low pressure experiment pipe-line system and end user headtotail, high-pressure experiment pipe-line system inferior high-pressure experiment pipe-line system middling pressure experiment pipe-line system and all include 5 way pipeline branch roads of parallelly connected setting in the low pressure experiment pipe-line system.
In one implementation mode, a natural gas flow regulating valve and a natural gas pressure regulating valve are sequentially arranged between the high-pressure natural gas source and the inlet of the hydrogen loading machine.
In one implementation mode, a hydrogen flow regulating valve, a hydrogen compressor and a hydrogen pressure regulating valve are sequentially arranged between the hydrogen source system and the inlet of the hydrogen loading machine.
In one implementation, the outlet of the hydrogen loading machine is divided into two branches, wherein the first branch is connected with the inlet of the high-pressure experiment pipeline system, and the second branch is connected with the inlet of the low-pressure experiment pipeline system.
In one implementation, a plurality of ball valves are arranged between the second branch and the inlet of the low-pressure experiment pipeline system.
In one implementation, the outlet of the high-pressure experimental pipe system is divided into two branches, wherein a third branch is connected to the inlet of the secondary high-pressure experimental pipe system, and a fourth branch is connected to the second branch.
In one implementation, the outlet of the secondary high-pressure experiment pipeline system is divided into two branches, wherein a fifth branch is connected with the inlet of the medium-pressure experiment pipeline system, and a sixth branch is connected with the second branch.
In one implementation, the outlet of the medium-pressure experimental piping is connected to the inlet of the low-pressure experimental piping.
In one implementation, in the high-pressure experiment pipeline system, the secondary high-pressure experiment pipeline system, the medium-pressure experiment pipeline system, and the low-pressure experiment pipeline system, two ball valves and two flanges are arranged in each pipeline branch.
In one implementation, the pipelines in the high-pressure experiment pipeline system, the secondary high-pressure experiment pipeline system, the medium-pressure experiment pipeline system and the low-pressure experiment pipeline system are pipelines with different pipe ages and different pipes.
Has the advantages that: compared with the prior art, the invention provides a natural gas pipeline hydrogen-loading comprehensive experiment system device, which comprises: the system comprises a hydrogen source system, a high-pressure natural gas source, a hydrogen loading machine and an experimental pipeline system, wherein the hydrogen source system and the high-pressure natural gas source are both connected with an inlet of the hydrogen loading machine, and the experimental pipeline system is connected with an outlet of the hydrogen loading machine; the experimental piping system comprises: high-pressure experiment pipe-line system, time high-pressure experiment pipe-line system, middling pressure experiment pipe-line system and low pressure experiment pipe-line system, low pressure experiment pipe-line system and end user headtotail, high-pressure experiment pipe-line system time high-pressure experiment pipe-line system middling pressure experiment pipe-line system and all including parallelly connected 5 way pipeline branch roads that set up in the low pressure experiment pipe-line system. The invention can simultaneously carry out the natural gas pipeline hydrogen-loading experiment under various pressure working conditions, adjust the experiment pressure quantity according to the actual requirement and improve the experiment efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a natural gas pipeline hydrogen loading comprehensive experiment system device provided by an embodiment of the invention.
Reference numerals:
| hydrogen source system | 1 | High-pressure natural gas source | 2 |
| Natural gas flow regulating valve | 3 | Natural gasPressure regulating valve | 4 |
| Hydrogen flow regulating valve | 5 | |
6 |
| Hydrogen |
7 | Hydrogen-adding machine | 8 |
| First ball valve | 9 | |
10 |
| |
11 | |
13 |
| Fifth ball valve | 15 | |
16 |
| Seventh ball valve | 18 | |
19 |
| |
21 | |
12 |
| First hydrogen-doped natural gas pressure regulating valve | 14 | Second hydrogen-doped natural gas pressure regulating valve | 17 |
| Third hydrogen-doped natural gas |
20 | High-pressure experiment |
22 |
| Sub-high pressure experiment |
23 | Medium-pressure experiment |
24 |
| Low-pressure experiment |
25 | |
26 |
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The embodiment provides a natural gas pipeline hydrogen loading comprehensive experiment system device, as shown in fig. 1, the device includes: the system comprises a hydrogen source system 1, a high-pressure natural gas source 2, a hydrogen loading machine 8 and an experimental pipeline system, wherein the hydrogen source system 1 and the high-pressure natural gas source 2 are both connected with an inlet of the hydrogen loading machine 8, and the experimental pipeline system is connected with an outlet of the hydrogen loading machine 8; the experimental piping system comprises: high-pressure experiment pipe-line system, time high-pressure experiment pipe-line system, middling pressure experiment pipe-line system and low pressure experiment pipe-line system, low pressure experiment pipe-line system is connected with end user system 26, high-pressure experiment pipe-line system time high-pressure experiment pipe-line system middling pressure experiment pipe-line system and all including parallelly connected 5 way pipeline branch roads that set up in the low pressure experiment pipe-line system. Because natural gas line comprehensive experiment system device in this embodiment medium-high pressure experiment pipe-line system, time high-pressure experiment pipe-line system, middling pressure experiment pipe-line system and low pressure experiment pipe-line system, low pressure experiment pipe-line system consequently can carry out the natural gas line experiment of mixing with hydrogen under the multiple pressure operating mode simultaneously.
Specifically, in this embodiment, a natural gas flow regulating valve 3 and a natural gas pressure regulating valve 4 are sequentially disposed between the high-pressure natural gas source 2 and the inlet of the hydrogen loading machine 8, and a hydrogen flow regulating valve 5, a hydrogen compressor 6 and a hydrogen pressure regulating valve 7 are sequentially disposed between the hydrogen source system 1 and the inlet of the hydrogen loading machine 8. The outlet of the hydrogen adding machine 8 is divided into two branches, wherein the first branch is connected with the inlet of the high-pressure experiment pipeline system, and the second branch is connected with the inlet of the low-pressure experiment pipeline system. As is apparent from fig. 1, a first ball valve 9 is arranged between the first branch and the inlet of the high-pressure experimental pipe system. A plurality of ball valves are arranged between the second branch and the inlet of the low-pressure experiment pipeline system, and the ball valves are respectively a second ball valve 10, a sixth ball valve 16, an eighth ball valve 19 and a ninth ball valve 21.
Furthermore, the outlet of the high-pressure experiment pipeline system is divided into two branches, wherein the third branch is connected with the inlet of the secondary high-pressure experiment pipeline system, and the fourth branch is connected with the second branch. And a first hydrogen-doped natural gas pressure regulating valve 14 and a fifth ball valve 15 are sequentially arranged between the third branch and the inlet of the secondary high-pressure experiment pipeline system. And the outlet of the secondary high-pressure experiment pipeline system is divided into two branches, wherein the fifth branch is connected with the inlet of the medium-pressure experiment pipeline system, and the sixth branch is connected with the second branch. And a second hydrogen-doped natural gas pressure regulating valve 17 and a seventh ball valve 18 are sequentially arranged between the fifth branch and the inlet of the medium-pressure experiment pipeline system. The outlet of the medium-pressure experiment pipeline system is connected with the inlet of the low-pressure experiment pipeline system, and a third hydrogen-doped natural gas pressure regulating valve 20 is arranged between the outlet of the medium-pressure experiment pipeline system and the inlet of the low-pressure experiment pipeline system.
In this embodiment, in the high-pressure experiment pipeline system, the sub-high-pressure experiment pipeline system, the medium-pressure experiment pipeline system, and the low-pressure experiment pipeline system, two ball valves (e.g., the third ball valve 11 and the fourth ball valve 13 in fig. 1) and two flanges are disposed in each pipeline branch. In addition, the pipelines in the high-pressure experiment pipeline system, the secondary high-pressure experiment pipeline system, the medium-pressure experiment pipeline system and the low-pressure experiment pipeline system in the embodiment are pipelines with different pipe ages and different pipes. Therefore, the embodiment can simultaneously perform the natural gas pipeline hydrogen-loading experiments under various pressure working conditions on one hand, and can simultaneously perform the experiments of pipes with different pipe ages in pipeline systems under different pressure working conditions on the other hand, so that the experiment efficiency is improved; on the other hand, the natural gas compressor can be reduced, and the system investment is reduced.
The process for carrying out the natural gas pipeline hydrogen-loading comprehensive experiment by using the device sequentially comprises the following working conditions and steps:
when experiments under four pressure working conditions of high pressure, sub-high pressure, medium pressure and low pressure need to be carried out simultaneously, the ball valves (namely the second ball valve 10, the sixth ball valve 16 and the eighth ball valve 19) on the first branch are closed, so that the hydrogen-doped natural gas sequentially passes through the high-pressure experiment pipe section system 22, the sub-high-pressure experiment pipe section system 23, the medium-pressure experiment pipe section system 24 and the low-pressure experiment pipe section system 25 and then is communicated to the end user system 26. When only need carry out the experiment under the three kinds of pressure operating modes, can open the ball valve on first branch road according to the demand. When only need carry out the experiment under two kinds of pressure operating modes, can open the ball valve on first branch road according to the demand. When only need carry out the experiment under a pressure operating mode, can open the ball valve on first branch road according to the demand. Therefore, in the embodiment, the working conditions of the high-pressure experiment pipe section system 22, the secondary high-pressure experiment pipe section system 23, the medium-pressure experiment pipe section system 24 and the low-pressure experiment pipe section system 25 can be controlled by controlling the ball valve on the first branch.
Because the difference between the high-pressure experimental pipe section system 22, the secondary high-pressure experimental pipe section system 23, the medium-pressure experimental pipe section system 24 and the low-pressure experimental pipe section system 25 lies in the difference of the types of pipes in the flanges in the 5-way pipeline branches arranged in parallel, the outlet pressure of the inlet pressure regulating valve of each experimental pipe section system can be changed according to the experimental requirements, so that the experimental functions of each experimental pipe section system can be switched. Meanwhile, the number of the experimental pipe section systems and the number of the pipeline branches arranged in parallel in the experimental pipe section systems can be increased or reduced according to experimental requirements.
By way of example, example 1: taking natural gas in a certain city in south China as an example, the receiving pressure of a gate station is 4MPa, and the town gas pipeline system comprises four-stage pressure of-4 MPa of a high-pressure experiment pipeline system, 1.6MPa of a secondary high-pressure experiment pipeline system, 0.4MPa of a medium-pressure experiment pipeline system and 0.01MPa of a low-pressure experiment pipeline system. The pipe material of the high-pressure experiment pipeline system is X65, the pipe material of the secondary high-pressure experiment pipeline system is X52, the pipe material of the medium-pressure experiment pipeline system is X42 and PE100, and the pipe material of the low-pressure experiment pipeline system is No. 20 steel. The method aims to research the adaptability of natural gas pipeline hydrogen-loading to the existing gas pipeline system. And (4) building a natural gas pipeline hydrogen-loading comprehensive experiment system containing four-stage pressure. Leading out a bypass through a high-pressure pipeline of a gate station to obtain a high-pressure natural gas source 2, regulating the pressure to be 4MPa through a natural gas pressure regulating valve 4, and mixing hydrogen with the natural gas with the pressure of 4MPa in a hydrogen mixer 8 after the hydrogen is regulated to be 4MPa from a hydrogen cylinder set through a hydrogen compressor 6 and a hydrogen pressure regulating valve 7. The hydrogen flow regulation and the natural gas flow are regulated in real time through the hydrogen flow regulating valve 5 and the natural gas flow regulating valve 3 through the PLC control cabinet according to the real-time hydrogen consumption of the downstream end user system 26 and the set experimental hydrogen-loading ratio. And closing the second ball valve 10, the sixth ball valve 16 and the eighth ball valve 19, and opening the first ball valve 9, the fifth ball valve 15, the seventh ball valve 18, the ninth ball valve 21, the high-pressure experimental pipe system, the secondary high-pressure experimental pipe section system 23, the medium-pressure experimental pipe section system 24 and the ball valves at two ends of each parallel experimental pipe section of the low-pressure experimental pipe section system 25. The outlet of the hydrogen adding machine 8 is filled with hydrogen-added natural gas which enters a high-pressure experiment pipeline system after passing through a first ball valve 9 and passes through 5 pipeline branches which are connected in parallel. The experimental pipe sections of the high-pressure experimental pipeline system are all X65, and the pipe ages are 0 year, 5 years, 15 years, 25 years and 35 years respectively. The outlet of the high-pressure experiment pipeline system is adjusted to 1.6MPa by the first hydrogen-doped natural gas pressure adjusting valve 14, and then is communicated to the secondary high-pressure experiment pipeline system 23 by the fifth ball valve 15, and respectively passes through 5 pipeline branches connected in parallel. The experimental pipe sections and pipes of the secondary high-pressure experimental pipeline system are all X52, and the pipe ages are respectively 0 year, 5 years, 15 years, 25 years and 35 years. The outlet of the secondary high-pressure experiment pipeline system is adjusted to 0.4MPa by the second hydrogen-doped natural gas pressure adjusting valve 17, and then is communicated to the medium-pressure experiment pipeline system by the seventh ball valve 18 and respectively passes through 5 pipeline branches connected in parallel. The pipeline 5 of the experimental pipeline system of the medium-pressure experimental pipeline system is X42, and the pipe ages are 0 year, 3 years, 6 years, 9 years and 12 years respectively. The outlet of the medium-pressure experiment pipeline system is adjusted to 0.01MPa by the third hydrogen-doped natural gas pressure adjusting valve 20, and then is communicated to the low-pressure experiment pipeline system by the ninth ball valve 21 and respectively passes through 5 pipeline branches connected in parallel. The experimental pipe section and the pipe material of the low-pressure experimental pipeline system are all 20-grade steel, and the pipe ages are respectively 0 year, 3 years, 6 years, 9 years and 12 years. The low pressure test piping system outlet hydrogen-loaded natural gas is passed to an end user system 26.
Example 2: taking the natural gas in a certain city in south China as an example, the receiving pressure of a gate station is 4MPa, and the town gas pipeline system comprises four-stage pressure of a high-pressure experiment pipeline system of-4 MPa, a secondary high-pressure experiment pipeline system of-1.6 MPa, a medium-pressure experiment pipeline system of-0.4 MPa and a low-pressure experiment pipeline system of-0.01 MPa. The pipe material of the high-pressure experiment pipeline system is X65, the pipe material of the secondary high-pressure experiment pipeline system is X52, the pipe material of the medium-pressure experiment pipeline system is X42 and PE100, and the pipe material of the low-pressure experiment pipeline system is No. 20 steel. Due to the fact that the high-pressure gas pipeline system is too long in pipe age, the adaptability research is not considered to be carried out. And (4) building a natural gas pipeline hydrogen-loading comprehensive experiment system containing three-level pressure. Leading out a bypass through a high-pressure pipeline of a gate station to obtain a high-pressure natural gas source 2, regulating the pressure to be 1.6MPa through a natural gas pressure regulating valve 4, regulating the pressure of hydrogen from a hydrogen cylinder group to be 1.6MPa through a hydrogen compressor 6 and a hydrogen pressure regulating valve 7, and mixing the hydrogen with the natural gas with the pressure of 1.6MPa in a hydrogen mixer 8. The hydrogen flow regulation and the natural gas flow are regulated in real time through the hydrogen flow regulating valve 5 and the natural gas flow regulating valve 3 by the PLC control cabinet according to the real-time hydrogen consumption of the downstream end user system 26 and the set experimental hydrogen-doping ratio.
Closing the first ball valve 9, the sixth ball valve 16 and the eighth ball valve 19, opening the second ball valve 10, the fifth ball valve 15, the seventh ball valve 18, the ninth ball valve 21, the secondary high-pressure experimental pipe section system 23, the medium-pressure experimental pipe section system 24 and the ball valves at two ends of each parallel experimental pipe section of the low-pressure experimental pipe section system 25. The outlet of the hydrogen adding machine 8 is filled with hydrogen natural gas, the hydrogen natural gas passes through the second ball valve 10 and then passes through the first hydrogen natural gas pressure regulating valve 14, the stable pressure is 1.6MPa, and then the hydrogen natural gas passes through the fifth ball valve 15 to the secondary high-pressure experiment pipeline system and respectively passes through 5 pipeline branches connected in parallel. The pipe materials of the experimental pipeline system of the secondary high-pressure experimental pipeline system are all X52, and the pipe ages are 0 year, 5 years, 15 years, 25 years and 35 years respectively. The outlet of the secondary high-pressure experiment pipeline system is adjusted to 0.4MPa by the second hydrogen-doped natural gas pressure adjusting valve 17, and then is communicated to the medium-pressure experiment pipeline system by the seventh ball valve 18 and respectively passes through 5 pipeline branches connected in parallel. The pipeline 5 of the experimental pipeline system of the medium-pressure experimental pipeline system is X42, and the pipe ages are 0 year, 3 years, 6 years, 9 years and 12 years respectively. The outlet of the medium-pressure experiment pipeline system is adjusted to 0.01MPa by the third hydrogen-doped natural gas pressure adjusting valve 20, and then is communicated to the low-pressure experiment pipeline system by the ninth ball valve 21 and respectively passes through 5 pipeline branches connected in parallel. The pipes of the experimental pipeline system of the low-pressure experimental pipeline system are all 20-grade steel, and the pipe ages are respectively 0 year, 3 years, 6 years, 9 years and 12 years. The low pressure test piping system outlet hydrogen-loaded natural gas is passed to an end user system 26.
Compared with the prior art, the embodiment has the following beneficial effects: the embodiment can be used for carrying out the hydrogen doping experiment of the natural gas pipeline under various pressure working conditions at the same time, and the experiment pressure quantity can be adjusted according to actual requirements, so that the experiment efficiency is improved. The embodiment can simultaneously carry out the hydrogen loading experiment aiming at the pipelines with different pipe ages and different pipes, and the number of pipeline samples can be adjusted according to the actual requirement, so that the experiment efficiency is improved. This embodiment can be in the experiment on the way, at any time, extracts one section pipeline and carries out sampling analysis, does not influence whole experimental system's operation, improves experimental efficiency. The high-pressure natural gas that this embodiment was received through utilizing natural valve station is from taking pressure, tests, reduces traditional experimental system and in order to adjust natural gas pressure, the natural gas compressor that needs add, reduces the system investment.
In summary, the invention discloses a natural gas pipeline hydrogen-loading comprehensive experiment system device, which comprises: the system comprises a hydrogen source system 1, a high-pressure natural gas source 2, a hydrogen loading machine 8 and an experimental pipeline system, wherein the hydrogen source system 1 and the high-pressure natural gas source 2 are both connected with an inlet of the hydrogen loading machine 8, and the experimental pipeline system is connected with an outlet of the hydrogen loading machine 8; the experiment piping system includes: high-pressure experiment pipe-line system, time high-pressure experiment pipe-line system, middling pressure experiment pipe-line system and low pressure experiment pipe-line system, low pressure experiment pipe-line system is connected with end user system 26, high-pressure experiment pipe-line system time high-pressure experiment pipe-line system middling pressure experiment pipe-line system and all including parallelly connected 5 way pipeline branch roads that set up in the low pressure experiment pipe-line system. The invention can simultaneously carry out the natural gas pipeline hydrogen-loading experiment under various pressure working conditions, adjust the experiment pressure quantity according to the actual requirement and improve the experiment efficiency.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A natural gas pipeline hydrogen-loading comprehensive experiment system device is characterized by comprising: the system comprises a hydrogen source system, a high-pressure natural gas source, a hydrogen loading machine and an experimental pipeline system, wherein the hydrogen source system and the high-pressure natural gas source are both connected with an inlet of the hydrogen loading machine, and the experimental pipeline system is connected with an outlet of the hydrogen loading machine; the experimental piping system comprises: high-pressure experiment pipe-line system, time high-pressure experiment pipe-line system, middling pressure experiment pipe-line system and low pressure experiment pipe-line system, low pressure experiment pipe-line system and end user headtotail, high-pressure experiment pipe-line system time high-pressure experiment pipe-line system middling pressure experiment pipe-line system and all including parallelly connected 5 way pipeline branch roads that set up in the low pressure experiment pipe-line system.
2. The natural gas pipeline hydrogen-loading comprehensive experiment system device as claimed in claim 1, wherein a natural gas flow regulating valve and a natural gas pressure regulating valve are sequentially arranged between the high-pressure natural gas source and the inlet of the hydrogen loading machine.
3. The natural gas pipeline hydrogen-loading comprehensive experiment system device as claimed in claim 1, wherein a hydrogen flow regulating valve, a hydrogen compressor and a hydrogen pressure regulating valve are sequentially arranged between the hydrogen source system and the inlet of the hydrogen loading machine.
4. The natural gas pipeline hydrogen-loading comprehensive experiment system device as claimed in claim 1, wherein the outlet of the hydrogen loading machine is divided into two branches, wherein the first branch is connected with the inlet of the high-pressure experiment pipeline system, and the second branch is connected with the inlet of the low-pressure experiment pipeline system.
5. The natural gas pipeline hydrogen-loading comprehensive experiment system device as claimed in claim 4, wherein a plurality of ball valves are arranged between the second branch and the inlet of the low-pressure experiment pipeline system.
6. The natural gas pipeline hydrogen-loading comprehensive experiment system device as claimed in claim 4, wherein the outlet of the high-pressure experiment pipeline system is divided into two branches, wherein the third branch is connected with the inlet of the secondary high-pressure experiment pipeline system, and the fourth branch is connected with the second branch.
7. The natural gas pipeline hydrogen-loading comprehensive experiment system device as claimed in claim 6, wherein the outlet of the secondary high-pressure experiment pipeline system is divided into two branches, wherein a fifth branch is connected with the inlet of the medium-pressure experiment pipeline system, and a sixth branch is connected with the second branch.
8. The natural gas pipeline hydrogen-loading comprehensive experiment system device as claimed in claim 7, wherein the outlet of the medium-pressure experiment pipeline system is connected with the inlet of the low-pressure experiment pipeline system.
9. The natural gas pipeline hydrogen-loading comprehensive experiment system device as claimed in claim 1, wherein two ball valves and two flanges are arranged in each pipeline branch of the high-pressure experiment pipeline system, the secondary high-pressure experiment pipeline system, the medium-pressure experiment pipeline system and the low-pressure experiment pipeline system.
10. The natural gas pipeline hydrogen-loading comprehensive experiment system device as claimed in claim 1, wherein the pipelines in the high-pressure experiment pipeline system, the secondary high-pressure experiment pipeline system, the medium-pressure experiment pipeline system and the low-pressure experiment pipeline system are pipelines with different pipe ages and different pipes.
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20230129888A1 (en) * | 2021-10-22 | 2023-04-27 | Welker, Inc. | Hydrogen infusion system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5570729A (en) * | 1993-11-08 | 1996-11-05 | Maschinenfabrik Sulzer-Burckhardt Ag | Method and apparatus for the rapid tanking of a pressure container with a gaseous medium |
| US20060071016A1 (en) * | 2004-09-09 | 2006-04-06 | Diggins David A | Dual-service system and method for compressing and dispensing natural gas and hydrogen |
| CN203810032U (en) * | 2013-12-13 | 2014-09-03 | 山西省国新能源发展集团有限公司 | Self-adjusting filling system for mixed coke oven gas and natural gas |
| CN203881553U (en) * | 2014-05-27 | 2014-10-15 | 邓南林 | Combustion gas pressure regulation test system |
| CN204479417U (en) * | 2015-03-20 | 2015-07-15 | 北京城建亚泰建设集团有限公司 | A kind of rock gas station process pipe gas pressure test system |
| CN105043933A (en) * | 2015-07-27 | 2015-11-11 | 西安交通大学 | High-parameter fracturing fluid performance testing and evaluation device |
| CN212819192U (en) * | 2020-04-22 | 2021-03-30 | 天津华迈燃气装备股份有限公司 | Natural gas hydrogen mixing system |
| CN113341060A (en) * | 2021-06-11 | 2021-09-03 | 中国石油大学(华东) | Medium-low pressure hydrogen-containing pipeline experiment system and method |
| CN113358316A (en) * | 2021-06-09 | 2021-09-07 | 西南石油大学 | Hydrogen-doped natural gas pipeline flow law research and corrosion simulation test device and method |
| CN113639198A (en) * | 2021-08-02 | 2021-11-12 | 浙江大学 | System and method for preventing hydrogen embrittlement of hydrogen-doped natural gas pipeline based on hydrogen-green doping and oxygen-doping |
| CN114113488A (en) * | 2021-12-02 | 2022-03-01 | 西南石油大学 | High pressure hydrogen-doped natural gas pipeline leakage spontaneous combustion experimental device |
-
2022
- 2022-04-24 CN CN202210454946.XA patent/CN114963017B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5570729A (en) * | 1993-11-08 | 1996-11-05 | Maschinenfabrik Sulzer-Burckhardt Ag | Method and apparatus for the rapid tanking of a pressure container with a gaseous medium |
| US20060071016A1 (en) * | 2004-09-09 | 2006-04-06 | Diggins David A | Dual-service system and method for compressing and dispensing natural gas and hydrogen |
| CN203810032U (en) * | 2013-12-13 | 2014-09-03 | 山西省国新能源发展集团有限公司 | Self-adjusting filling system for mixed coke oven gas and natural gas |
| CN203881553U (en) * | 2014-05-27 | 2014-10-15 | 邓南林 | Combustion gas pressure regulation test system |
| CN204479417U (en) * | 2015-03-20 | 2015-07-15 | 北京城建亚泰建设集团有限公司 | A kind of rock gas station process pipe gas pressure test system |
| CN105043933A (en) * | 2015-07-27 | 2015-11-11 | 西安交通大学 | High-parameter fracturing fluid performance testing and evaluation device |
| CN212819192U (en) * | 2020-04-22 | 2021-03-30 | 天津华迈燃气装备股份有限公司 | Natural gas hydrogen mixing system |
| CN113358316A (en) * | 2021-06-09 | 2021-09-07 | 西南石油大学 | Hydrogen-doped natural gas pipeline flow law research and corrosion simulation test device and method |
| CN113341060A (en) * | 2021-06-11 | 2021-09-03 | 中国石油大学(华东) | Medium-low pressure hydrogen-containing pipeline experiment system and method |
| CN113639198A (en) * | 2021-08-02 | 2021-11-12 | 浙江大学 | System and method for preventing hydrogen embrittlement of hydrogen-doped natural gas pipeline based on hydrogen-green doping and oxygen-doping |
| CN114113488A (en) * | 2021-12-02 | 2022-03-01 | 西南石油大学 | High pressure hydrogen-doped natural gas pipeline leakage spontaneous combustion experimental device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230129888A1 (en) * | 2021-10-22 | 2023-04-27 | Welker, Inc. | Hydrogen infusion system |
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