CN218119395U - Natural gas hydrogen-doped gas station system - Google Patents
Natural gas hydrogen-doped gas station system Download PDFInfo
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- CN218119395U CN218119395U CN202222134324.7U CN202222134324U CN218119395U CN 218119395 U CN218119395 U CN 218119395U CN 202222134324 U CN202222134324 U CN 202222134324U CN 218119395 U CN218119395 U CN 218119395U
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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
- Y02E60/32—Hydrogen storage
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Abstract
The utility model provides a natural gas adds hydrogen filling station system, including the natural gas trailer, the natural gas column of unloading, filter the pressure regulating measurement sled, the hydrogen trailer, the hydrogen column of unloading, the pressure regulating measurement sled, mix the gas sled, sled dress compressor unit, HCNG gas storage well group and HCNG gas filling machine, the natural gas trailer unloads gas column import intercommunication with the natural gas, the natural gas column export that unloads is linked together with the pressure regulating measurement sled import intercommunication, the hydrogen trailer unloads gas column import intercommunication with the hydrogen, hydrogen unloads gas column export and pressure regulating measurement sled import intercommunication, the export of filtration pressure regulating measurement sled and pressure regulating measurement sled communicates with the natural gas import and the hydrogen import of mixing the gas sled respectively, the gas mixing export of mixing the gas sled communicates with sled dress compressor unit, the order dish export in the sled dress compressor unit communicates with HCNG gas storage well group and HCNG gas filling machine respectively. The utility model discloses mix the back to natural gas and hydrogen according to a certain proportion and compress into HCNG, through HCNG gas storage well group to aerify the HCNG car with the help of HCNG air entrainment machine, satisfy the air entrainment demand of HCNG car.
Description
Technical Field
The utility model relates to a gas station technical field, concretely relates to natural gas hydrogen-doped gas station system.
Background
In the face of increasingly severe global environmental problems, fossil fuels face the danger of exhaustion, and energy consumption factors represented by automobiles, china develops researches for seeking alternative fuels to deal with energy crisis problems in the field of automobiles while vigorously developing renewable energy. Automobiles fueled by natural gas are representative of clean fuel automobiles, and natural gas generally has a methane content of greater than 90% as a good automobile fuel. However, the ignition range of natural gas is narrow, the engine efficiency is low, the flame propagation of natural gas is slow, the charging coefficient in a cylinder is reduced, the combustion efficiency is not high, and more natural gas needs to be combusted, so that the emission of pollutants is caused. Under the circumstances, a new mixed high-efficiency fuel is needed, which can be quickly combusted, reduce cycle variation and is added into natural gas without pollution through a certain proportion. Researches find that natural gas hydrogen-doped mixed fuel gas HCNG formed by adding a certain amount of hydrogen into natural gas and compressing has the advantages of high hydrogen combustion speed, wide ignition range, high combustion heat value of the natural gas, rich reserves, clean energy sources of the natural gas and the natural gas, and small influence on the environment.
At present, domestic natural gas filling stations are developed greatly, however, HCNG filling stations related to natural gas hydrogen filling are reported rarely, so that a natural gas hydrogen filling station system needs to be developed urgently to meet the requirements of application and popularization of HCNG as a novel alternative energy source.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a natural gas blending gas station system mixes the back to compress into HCNG to natural gas and hydrogen according to certain proportion, through arranging underground HCNG gas storage well group in to aerify the HCNG car with the help of the HCNG gas dispenser, satisfy the gas demand of HCNG car.
As the conception, the utility model adopts the following technical proposal: the natural gas hydrogen-mixing gas station system is characterized by comprising a natural gas trailer (1), a natural gas unloading column (2), a filtering pressure-regulating metering pry (3), a hydrogen trailer (4), a hydrogen gas unloading column (5), a pressure-regulating metering pry (6), a gas mixing pry (7), a skid-mounted compressor unit (9) with a sequence disc, an underground HCNG gas storage well group (10) and an HCNG gas dispenser (20), wherein the natural gas trailer (1) is communicated with an inlet of the natural gas unloading column (2), an outlet of the natural gas unloading column (2) is communicated with an inlet of the filtering pressure-regulating metering pry (3) and is used for filtering, metering, regulating pressure and stabilizing natural gas unloaded from the natural gas trailer (1), the hydrogen trailer (4) is communicated with an inlet of the hydrogen gas unloading column (5), and an outlet of the hydrogen gas unloading column (5) is communicated with an inlet of the pressure-regulating metering pry (6) and is used for metering and regulating pressure of hydrogen unloaded from the hydrogen gas trailer (4); the export of filtration pressure regulating measurement sled (3) and pressure regulating measurement sled (6) respectively with the natural gas import and the hydrogen import intercommunication of gas mixing sled (7), the gas mixture export of gas mixing sled (7) pass through the pipeline with sled dress compressor unit (9) intercommunication, the order dish export in sled dress compressor unit (8) divides two the tunnel, all the way with HCNG gas storage well group (10) intercommunication, all the way with HCNG adds gas engine (20) intercommunication, and the gas after gas mixing sled (7) mixes gets into sled dress compressor unit (9) forms HCNG, and passes through the order packing is controlled the logic order of gas filling according to pressure, through HCNG gas storage well group (10), and with the help HCNG adds gas engine (20) and adds the gas filling for the HCNG car.
Preferably, the skid-mounted compressor unit (9) comprises a compressor (91) and a sequence disc (92), wherein a mixed gas outlet of the mixed gas skid (7) is communicated with a gas inlet of the compressor (91), and a gas outlet of the compressor (91) is communicated with a gas inlet end of the sequence disc (92); a branch pipe (94) which is directly communicated with the air inlet end of the sequence disc (92) is also arranged on the air inlet pipeline of the compressor (91), and a valve is arranged on the branch pipe (94).
Preferably, said skid-mounted compressor group (9) comprises two arranged in parallel; the HCNG gas dispenser (20) comprises two gas dispensers which are arranged in parallel.
Preferably, each skid-mounted compressor unit (9) further comprises a recovery tank (93), a liquid inlet of the recovery tank (93) is communicated with a liquid outlet of the compressor (91), and the liquid outlets of the recovery tanks (93) are combined through a pipeline and then communicated with an external sewage tank (30); the top of each recovery tank (93) is also provided with a vent.
Preferably, the HCNG gas storage well group (10) comprises an HCNG high-pressure gas storage well (101), an HCNG medium-pressure gas storage well (102) and an HCNG low-pressure gas storage well (103); the sequence disc (92) is provided with a first high-pressure air outlet hole (921) communicated with an HCNG high-pressure gas storage well (101) through a gas pipeline, the sequence disc (92) is provided with a second high-pressure air outlet hole (922) communicated with an HCNG high-pressure air inlet hole (201) of the HCNG gas dispenser (20) through a gas pipeline, the sequence disc (92) is provided with a first medium-pressure air outlet hole (923) communicated with an HCNG medium-pressure gas storage well (102) through a gas pipeline, the sequence disc (92) is provided with a second medium-pressure air outlet hole (924) communicated with an HCNG medium-pressure air inlet hole (202) of the HCNG gas dispenser (20) through a gas pipeline, the sequence disc (92) is provided with a first low-pressure air outlet hole (925) communicated with an HCNG low-pressure gas storage well (103) through a gas pipeline, and the sequence disc (92) is provided with a second low-pressure air outlet hole (926) communicated with an HCNG low-pressure air inlet hole (203) of the HCNG gas dispenser (20) through a gas pipeline.
Preferably, the compressor (91) is a diaphragm compressor.
Preferably, a pipeline between the mixed gas outlet of the mixed gas pry (7) and the inlet of the skid-mounted compressor unit (9) is also provided with a buffer tank (8).
Preferably, the filtering, pressure regulating and metering pry (3) comprises a gas flowmeter I (31) and a gas flowmeter II (32) which are arranged in parallel, the gas inlet ends of the gas flowmeter I (31) and the gas flowmeter II (32) are respectively communicated with a filter I (33) and a filter II (34), and the gas outlet ends of the gas flowmeter I (31) and the gas flowmeter II (32) are respectively communicated with a pressure regulator group I (35) and a pressure regulator group II (36);
pressure regulating measurement sled (6) are including parallelly connected gas flowmeter III (61) and the gas flowmeter IV (62) that set up, and the end of giving vent to anger of gas flowmeter III (61) and gas flowmeter IV (62) communicates respectively and has regulator group III (63) and regulator group IV (64).
Preferably, the pressure regulator group I (35) comprises a monitoring pressure regulator I (351) and a working pressure regulator I (352) which are sequentially connected in series, and the pressure regulator group II (36) comprises a monitoring pressure regulator II (361) and a working pressure regulator II (362) which are sequentially connected in series;
the pressure regulator group III (63) is including the monitoring voltage regulator III (631) and the work voltage regulator III (632) that establish ties in proper order and set up, pressure regulator group IV (64) is including the monitoring voltage regulator IV (641) and the work voltage regulator IV (642) that establish ties in proper order and set up.
The utility model discloses technical scheme has following advantage:
A. the utility model discloses a natural gas that transports the natural gas trailer and the hydrogen that the hydrogen trailer transported mix the back according to certain proportion (the volume hydrogen mixing ratio is 15% -20%) and compress into HCNG, through arranging underground HCNG gas storage well group in to with the help of HCNG gas filling machine realization to the air entrainment requirement of HCNG car, help promoting the popular use of HCNG energy automobile.
B. The utility model discloses can build jointly with the CNG gas station that has built. When a built CNG gas station exists, only H needs to be added 2 The gas mixing device with CNG and the subsequent corresponding subsystems thereof, thereby greatly reducing the construction cost of the system.
C. The utility model discloses a sequence dish distributes gas according to the pressure that adds the pressure of mechanism of qi and the pressure of gas storage well group for the system is safe high-efficient more.
D. The utility model discloses pressure regulating measurement sled has been set up respectively on natural gas line and hydrogen pipeline to set up two parallelly connected pressure regulating pipelines in every pressure regulating measurement sled, thereby can respond to the influence that various operating modes caused natural gas supply system and hydrogen supply system well, the operation of assurance system safety and stability.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the connection structure of the well sequence plate, the HCNG gas storage well group and the HCNG gas dispenser of the present invention.
The figures are labeled as follows:
1-natural gas trailer; 2-natural gas unloading column; 3-filtration pressure regulating metering pry, 31-gas flow meter I, 32-gas flow meter II, 33-filter I, 34-filter II, 35-pressure regulator group I, 351-monitoring pressure regulator I, 352-working pressure regulator I, 36-pressure regulator group II, 361-monitoring pressure regulator II and 362-working pressure regulator II; 4-a hydrogen trailer; 5-hydrogen gas discharge column; 6-pressure regulating and metering pry, 61-gas flow meter III, 62-gas flow meter IV, 63-pressure regulator group III, 631-monitoring pressure regulator III, 632-working pressure regulator III, 64-pressure regulator group IV, 641-monitoring pressure regulator IV and 642-working pressure regulator IV; 7-gas mixing prying; 8-a buffer tank; 8-skid-mounted compressor set, 91-compressor, 92-sequence disk, 921-first high-pressure outlet hole, 922-second high-pressure outlet hole, 923-first medium-pressure outlet hole, 924-second medium-pressure outlet hole, 925-first low-pressure outlet hole, 926-second low-pressure outlet hole, 93-recovery tank and 94-branch pipe; 10-HCNG gas storage well group, 101-HCNG high-pressure gas storage well, 102-HCNG medium-pressure gas storage well and 103-HCNG low-pressure gas storage well; 20-HCNG gas dispenser, 201-HCNG high-pressure gas inlet hole, 202-HCNG medium-pressure gas inlet hole and 203-HCNG low-pressure gas inlet hole; 30-a pollution discharge tank.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
As shown in fig. 1, the utility model provides a natural gas hydrogen-doped gas station system, including natural gas trailer 1, the natural gas column 2 that unloads, filter pressure regulating measurement sled 3, hydrogen trailer 4, the hydrogen column 5 that unloads, pressure regulating measurement sled 6, mix gas sled 7, take the sled dress compressor unit 9 of order dish, arrange underground HCNG gas storage well group 10 and HCNG gas machine 20, natural gas trailer 1 unloads the import intercommunication of column 2 with the natural gas, the natural gas unloads the export of column 2 and filters pressure regulating measurement sled 3 import intercommunication, be used for filtering, measure and pressure regulating steady voltage to the natural gas that natural gas trailer 1 unloaded, hydrogen trailer 4 unloads the import intercommunication with the hydrogen column 5, the export of hydrogen column 5 and pressure regulating measurement sled 6 import intercommunication, be used for measuring and pressure regulating steady voltage to the hydrogen that hydrogen trailer 4 unloaded; the outlets of the filtering pressure-regulating metering pry 3 and the pressure-regulating metering pry 6 are respectively communicated with a natural gas inlet and a hydrogen inlet of a gas mixing pry 7, the gas mixing outlet of the gas mixing pry 7 is communicated with a skid-mounted compressor unit 9 through a pipeline, an outlet of a sequence disc in the skid-mounted compressor unit 8 is divided into two paths, one path is communicated with an HCNG gas storage well group 10, the other path is communicated with an HCNG gas adding machine 20, gas mixed by the gas mixing pry 7 enters the skid-mounted compressor unit 9 to form HCNG, logic sequence of gas adding is controlled through the sequence disc according to pressure, and HCNG gas is added to the HCNG vehicle through the HCNG gas storage well group 10 and by means of the HCNG gas adding machine 20. The utility model discloses a natural gas that transports the natural gas trailer and the hydrogen that the hydrogen trailer transported mix the back according to certain proportion (the volume hydrogen mixing ratio is 15% -20%) and compress into HCNG, through arranging underground HCNG gas storage well group in to with the help of HCNG gas filling machine realization to the air entrainment requirement of HCNG car, help promoting the popular use of HCNG energy automobile.
Further, the skid-mounted compressor unit 9 comprises a compressor 91 and a sequence disc 92, a mixed gas outlet of the mixed gas skid 7 is communicated with a gas inlet of the compressor 91, and a gas outlet of the compressor 91 is communicated with a gas inlet end of the sequence disc 92; a branch pipe 94 directly communicated with the air inlet end of the sequence disk 92 is also arranged on the air inlet pipeline of the compressor 91, and a valve is arranged on the branch pipe 94. Sled dress compressor unit 9 still includes a recovery jar 93 including two of parallelly connected setting, every sled dress compressor unit 9, retrieves jar 93's inlet and compressor 91's leakage fluid dram intercommunication, retrieves jar 93's leakage fluid dram and communicates with outside blowdown jar 30 after merging through the pipeline to regularly outward transport. The top of each recovery tank 93 is also provided with a vent for discharging the mixture gas doped with the waste liquid discharged into the recovery tank 93 to the outside of the recovery tank 93.
As shown in fig. 2, the HCNG gas storage well group 10 includes a HCNG high pressure gas storage well 101 (last gas release), a HCNG medium pressure gas storage well 102 (second gas release), and a HCNG low pressure gas storage well 103 (first gas release). The sequence disk 92 is provided with a high pressure control valve, a medium pressure control valve, and a low pressure control valve. An air outlet of the compressor 91 is connected with an air inlet hole of the sequence disc 92, a first high-pressure air outlet hole 921 on the sequence disc 92 is communicated with an air inlet hole of the HCNG high-pressure gas storage well 101 through an air pipeline, a second high-pressure air outlet hole 922 on the sequence disc 92 is communicated with an HCNG high-pressure air inlet hole 201 of the HCNG gas dispenser 20 through an air pipeline, a first medium-pressure air outlet hole 923 on the sequence disc 92 is communicated with an air inlet hole of the HCNG medium-pressure gas storage well 102 through an air pipeline, a second medium-pressure air outlet hole 924 on the sequence disc 92 is communicated with an HCNG medium-pressure air inlet hole 202 of the HCNG gas dispenser 20 through an air pipeline, a first low-pressure air outlet hole 925 on the sequence disc 92 is communicated with an air inlet hole of the HCNG low-pressure gas storage well 103 through an air pipeline, and a second low-pressure air outlet hole 926 on the sequence disc 92 is communicated with an HCNG low-pressure air inlet hole 203 of the HCNG gas dispenser 20 through an air pipeline.
When in use, firstly, the compressor 91 charges the HCNG high-pressure gas storage well 101, the HCNG medium-pressure gas storage well 102 and the HCNG low-pressure gas storage well 103 in sequence through the sequence disc 92. Firstly, the high-pressure control valve on the sequence disk 92 is opened, and the HCNG charges the HCNG high-pressure gas storage well 101 through the first high-pressure gas outlet hole 921 on the sequence disk 92; in the inflation process, when the pressure of the HCNG in the HCNG high-pressure gas storage well 101 reaches a set value, the intermediate pressure control valve on the sequence disk 92 is opened, and the HCNG inflates the HCNG intermediate-pressure gas storage well 102 through the first intermediate pressure gas outlet 923 on the sequence disk 92; in the inflation process, when the pressure of the HCNG in the HCNG medium-pressure gas storage well 102 reaches a set value, the low-pressure control valve on the sequence disc 92 is opened, and the HCNG inflates the HCNG low-pressure gas storage well 103 through the first low-pressure air outlet 925 on the sequence disc 92; when the pressure of the HCNG in the low pressure HCNG reservoir 103 reaches a predetermined value, the high, medium and low pressure control valves on the sequence disk 92 are opened simultaneously, and the high pressure HCNG reservoir 101, the medium pressure HCNG reservoir 102 and the low pressure HCNG reservoir 103 are charged until the pressure reaches a predetermined maximum value.
When a HCNG automobile is aerated, the HCNG automobile is communicated to the HCNG gas adding machine 20, the pressure of the HCNG in the initial state of the HCNG automobile is monitored, the pressure of the HCNG in the HCNG automobile is respectively compared with the pressure of the HCNG in the HCNG high-pressure gas storage well 101, the HCNG medium-pressure gas storage well 102 and the HCNG low-pressure gas storage well 103, if the pressure is lower than the pressure in the HCNG low-pressure gas storage well 103, the HCNG low-pressure gas storage well 103 is opened, the HCNG automobile is aerated through the second low-pressure gas outlet 926 on the sequence disc 92 and the HCNG low-pressure gas inlet 203 of the HCNG gas adding machine 20 in sequence, if the pressure is balanced or higher than the pressure in the HCNG low-pressure gas storage well 103 and lower than the pressure in the HCNG gas storage well 102, the HCNG medium-pressure gas storage well 102 is opened, the HCNG medium-pressure gas storage well 102 is aerated through the second medium-pressure gas outlet 924 on the sequence disc 92 and the HCNG medium-pressure gas inlet 202 of the HCNG gas adding machine 20 for the HCNG automobile, and the HCNG automobile is aerated through the second high-pressure gas storage well 922 and the HCNG high-pressure gas storage well 922 on the HCNG automobile in sequence disc 922.
The utility model discloses a sequence dish distributes gas according to the pressure that adds the pressure of mechanism of qi and the pressure of gas storage well group for the system is safe high-efficient more. The utility model discloses well gas mixing sled 7 chooses for use no moving part gas mixing sled, and the accessible is adjusted and is mixed the aperture of 7 inlet end natural gas air inlets of gas mixing sled and hydrogen air inlet department governing valve, and the gaseous volume flow of control, and then realize mixing the ratio of natural gas and hydrogen in the gas mixing sled 7. The skid-mounted compressor unit 9 comprises two compressors which are connected in parallel, wherein one compressor is opened and the other compressor is standby. The compressor 91 is a diaphragm compressor. In order to ensure the supply of gas when the compressor works, a pipeline between the mixed gas outlet of the mixed gas pry 7 and the inlet of the skid-mounted compressor unit 9 is also provided with a buffer tank 8.HCNG dispenser 20 also includes two arranged in parallel.
The filtering, pressure-regulating and metering pry 3 comprises a gas flowmeter I31 and a gas flowmeter II 32 which are arranged in parallel, the gas inlet ends of the gas flowmeter I31 and the gas flowmeter II 32 are respectively communicated with a filter I33 and a filter II 34, and the gas outlet ends of the gas flowmeter I31 and the gas flowmeter II 32 are respectively communicated with a pressure regulator group I35 and a pressure regulator group II 36. The pressure regulator group I35 comprises a monitoring pressure regulator I351 and a working pressure regulator I352 which are sequentially connected in series, and the pressure regulator group II 36 comprises a monitoring pressure regulator II 361 and a working pressure regulator II 362 which are sequentially connected in series. The pressure regulating and metering pry 6 comprises a gas flowmeter III 61 and a gas flowmeter IV 62 which are arranged in parallel, and the gas outlet ends of the gas flowmeter III 61 and the gas flowmeter IV 62 are respectively communicated with a pressure regulator group III 63 and a pressure regulator group IV 64. The pressure regulator group III 63 comprises a monitoring pressure regulator III 631 and a working pressure regulator III 632 which are sequentially connected in series, and the pressure regulator group IV 64 comprises a monitoring pressure regulator IV 641 and a working pressure regulator IV 642 which are sequentially connected in series. The monitoring voltage regulators all adopt built-in switchesDisconnected monitoring voltage regulator. The monitoring pressure regulator is essentially an emergency standby pressure regulator, and the monitoring pressure regulator can be put into a working state instead of a working pressure regulator only when the outlet pressure of the main pressure regulator reaches the preset intervention pressure of the monitoring pressure regulator due to the fluctuation of downstream natural gas parameters, so as to ensure continuous gas supply. Monitoring the set outlet pressure P of the pressure regulator 1 Greater than the outlet set pressure P of the working pressure regulator 2 And P is 1 Greater than the closing pressure of the main regulator. When the system is in normal operation, the normal outlet pressure P of the working pressure regulator 2 Is less than P 1 Therefore, the valve of the monitoring pressure regulator is in a full open state; when the working pressure regulator is out of order, the outlet pressure is more than P 1 When the pressure of the monitoring pressure regulator is in a working state, the outlet pressure is changed into P 1 . The utility model discloses set up pressure regulating measurement group on natural gas line and hydrogen pipeline respectively to set up two parallelly connected pressure regulating pipelines in every pressure regulating measurement group, thereby can respond to the influence that various operating modes caused natural gas supply system and hydrogen supply system well, guarantee system safety and stability and move. The gas flowmeter can be one of an ultrasonic flowmeter and a turbine flowmeter, and is suitable for measuring the flow of high-flow-speed gas with medium and high pressure. Additionally, the utility model discloses well filtration pressure regulating measurement sled 3 and pressure regulating measurement sled 6 all can be selected to complete set of sled dress equipment to in the management with practice thrift the land used.
The utility model discloses can build jointly with the CNG gas station that has built. When a built CNG gas station exists, only H needs to be added 2 The gas mixing device with CNG and the subsequent corresponding subsystems thereof, thereby greatly reducing the construction cost of the system.
The utility model discloses the part not mentioned is applicable to prior art.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the present invention.
Claims (9)
1. The natural gas hydrogen-doped gas filling station system is characterized by comprising a natural gas trailer (1), a natural gas unloading column (2), a filtering pressure-regulating metering pry (3), a hydrogen trailer (4), a hydrogen unloading column (5), a pressure-regulating metering pry (6), a gas mixing pry (7), a prying compressor set (9) with a sequence disc, an underground HCNG gas storage well set (10) and an HCNG gas filling machine (20), wherein the natural gas trailer (1) is communicated with an inlet of the natural gas unloading column (2), an outlet of the natural gas unloading column (2) is communicated with an inlet of the filtering pressure-regulating metering pry (3) and is used for filtering, metering, pressure-regulating and stabilizing natural gas unloaded from the natural gas trailer (1), the hydrogen trailer (4) is communicated with an inlet of the hydrogen unloading column (5), and an outlet of the hydrogen unloading column (5) is communicated with an inlet of the pressure-regulating metering pry (6) and is used for metering, regulating and stabilizing pressure of hydrogen unloaded from the hydrogen trailer (4); the export of filtering pressure regulating measurement sled (3) and pressure regulating measurement sled (6) respectively with natural gas import and hydrogen import intercommunication of gas mixing sled (7), the gas mixing export of gas mixing sled (7) pass through the pipeline with sled dress compressor unit (9) intercommunication, the order dish export in sled dress compressor unit (9) divides two the tunnel, all the way with HCNG gas storage well group (10) intercommunication, all the way with HCNG adds mechanism of qi (20) intercommunication, and the gas after gas mixing sled (7) mixes gets into sled dress compressor unit (9) forms HCNG, and passes through the order dish is controlled according to the logic order of pressure to the gas filling, through HCNG gas storage well group (10), and with the help HCNG adds mechanism of qi (20) and adds the gas filling for the HCNG car.
2. The natural gas loading and gas filling station system as claimed in claim 1, wherein the skid-mounted compressor set (9) comprises a compressor (91) and a sequence disc (92), the mixed gas outlet of the mixed gas skid (7) is communicated with the gas inlet of the compressor (91), and the gas outlet of the compressor (91) is communicated with the gas inlet end of the sequence disc (92); a branch pipe (94) which is directly communicated with the air inlet end of the sequence disc (92) is also arranged on the air inlet pipeline of the compressor (91), and a valve is arranged on the branch pipe (94).
3. A natural gas loading and fueling station system as claimed in claim 2, wherein the skid-mounted compressor unit (9) comprises two arranged in parallel; the HCNG gas dispenser (20) comprises two gas dispensers which are arranged in parallel.
4. The natural gas loading and refueling station system as claimed in claim 3, wherein each skid-mounted compressor unit (9) further comprises a recovery tank (93), a liquid inlet of the recovery tank (93) is communicated with a liquid outlet of the compressor (91), and the liquid outlets of the recovery tanks (93) are combined through a pipeline and then communicated with an external blowdown tank (30); the top of each recovery tank (93) is also provided with a vent.
5. The natural gas hydrogen-loading and gas-filling station system as claimed in claim 4, wherein the HCNG gas storage well group (10) comprises an HCNG high pressure gas storage well (101), an HCNG medium pressure gas storage well (102) and an HCNG low pressure gas storage well (103); the sequence disc (92) is provided with a first high-pressure air outlet hole (921) communicated with an HCNG high-pressure gas storage well (101) through a gas pipeline, the sequence disc (92) is provided with a second high-pressure air outlet hole (922) communicated with an HCNG high-pressure air inlet hole (201) of the HCNG gas dispenser (20) through a gas pipeline, the sequence disc (92) is provided with a first medium-pressure air outlet hole (923) communicated with an HCNG medium-pressure gas storage well (102) through a gas pipeline, the sequence disc (92) is provided with a second medium-pressure air outlet hole (924) communicated with an HCNG medium-pressure air inlet hole (202) of the HCNG gas dispenser (20) through a gas pipeline, the sequence disc (92) is provided with a first low-pressure air outlet hole (925) communicated with an HCNG low-pressure gas storage well (103) through a gas pipeline, and the sequence disc (92) is provided with a second low-pressure air outlet hole (926) communicated with an HCNG low-pressure air inlet hole (203) of the HCNG gas dispenser (20) through a gas pipeline.
6. The natural gas loading station system as claimed in claim 2, wherein the compressor (91) is a diaphragm compressor.
7. The natural gas loading and refueling station system as claimed in claim 1, wherein a pipeline between a mixed gas outlet of the mixed gas pry (7) and an inlet of the skid-mounted compressor unit (9) is provided with a buffer tank (8).
8. The natural gas loading and gas filling station system as claimed in claim 1, wherein the filtering pressure regulating metering pry (3) comprises a gas flowmeter I (31) and a gas flowmeter II (32) which are arranged in parallel, the gas inlet ends of the gas flowmeter I (31) and the gas flowmeter II (32) are respectively communicated with a filter I (33) and a filter II (34), and the gas outlet ends of the gas flowmeter I (31) and the gas flowmeter II (32) are respectively communicated with a pressure regulator group I (35) and a pressure regulator group II (36);
pressure regulating measurement sled (6) are including parallelly connected gas flowmeter III (61) and the gas flowmeter IV (62) that set up, and the end of giving vent to anger of gas flowmeter III (61) and gas flowmeter IV (62) communicates respectively and has regulator group III (63) and regulator group IV (64).
9. The natural gas loading and gas filling station system as claimed in claim 8, wherein the pressure regulator group I (35) comprises a monitoring pressure regulator I (351) and a working pressure regulator I (352) which are sequentially connected in series, and the pressure regulator group II (36) comprises a monitoring pressure regulator II (361) and a working pressure regulator II (362) which are sequentially connected in series;
the pressure regulator group III (63) comprises a monitoring pressure regulator III (631) and a working pressure regulator III (632) which are sequentially connected in series, and the pressure regulator group IV (64) comprises a monitoring pressure regulator IV (641) and a working pressure regulator IV (642) which are sequentially connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222134324.7U CN218119395U (en) | 2022-08-15 | 2022-08-15 | Natural gas hydrogen-doped gas station system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116464917A (en) * | 2023-04-26 | 2023-07-21 | 山东齐鲁氢能研究院有限公司 | Integrated hydrogen-adding device based on natural gas pipe network system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116464917A (en) * | 2023-04-26 | 2023-07-21 | 山东齐鲁氢能研究院有限公司 | Integrated hydrogen-adding device based on natural gas pipe network system |
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