CN111928116A - Modularization hydrogenation station and nitrogen explosion suppression system thereof - Google Patents
Modularization hydrogenation station and nitrogen explosion suppression system thereof Download PDFInfo
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- CN111928116A CN111928116A CN202010791640.4A CN202010791640A CN111928116A CN 111928116 A CN111928116 A CN 111928116A CN 202010791640 A CN202010791640 A CN 202010791640A CN 111928116 A CN111928116 A CN 111928116A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
- F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
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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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- 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
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
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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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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a modular hydrogen filling station and a nitrogen explosion suppression system thereof. The nitrogen explosion suppression system comprises a nitrogen source, a control valve, a nitrogen explosion suppression ring, a safety leakage alarm device and a control device; high-pressure nitrogen is stored in the nitrogen source; the nitrogen explosion suppression ring is fixedly arranged at the top of the modular hydrogenation station, is communicated with a nitrogen source through a gas transmission pipeline, and is provided with a plurality of ejectors for ejecting nitrogen; the control valve is arranged on the gas transmission pipeline and used for controlling the on-off of the gas transmission pipeline; the safety leakage alarm device is used for detecting the hydrogen concentration and flame in the modular hydrogen station in real time and transmitting a detection signal to the control device; the control device is in signal connection with the control valve and the safety leakage alarm device, and controls the control valve to be opened or closed according to the received detection signal. The nitrogen explosion suppression system can be used for actively suppressing explosion, can realize unmanned operation and has quick response.
Description
Technical Field
The invention relates to the technical field of hydrogen energy, in particular to a modular hydrogen station and a nitrogen explosion suppression system thereof.
Background
The hydrogen station is used as the basic guarantee facility of the hydrogen fuel cell automobile and is a link for connecting the upstream hydrogen and the downstream fuel automobile users. The hydrogenation station can be divided into a fixed type hydrogenation station and a modular type (skid-mounted type) hydrogenation station. The fixed hydrogenation stations have the disadvantages of large occupied area, unsuitability for integral moving, long station building period, high civil engineering cost investment and the like, and under the market condition of small-scale demonstration operation of the current fuel cell vehicles, the hydrogenation stations with modularization, integration and high safety and reliability are rapidly distributed all over the country.
For the existing modularized hydrogen station, the technologies related to hazards such as hydrogen leakage and fire hazard mainly comprise the following steps: a safety linkage system is adopted, an emergency cut-off valve is arranged on an air inlet main pipe of the hydrogenation station, and a manual emergency cut-off valve which is convenient for cutting off an air source in time in emergency is arranged; installing an anti-static facility and a lightning protection facility, and adopting a grounding measure; and a hydrogen concentration detection alarm, a flame alarm detector, an emergency diffusion device, a nitrogen purging device and the like are installed.
For fire control and explosion suppression in the closed space, methods such as forced ventilation and inerting of combustible mixed gas can be adopted for realization. The principle of forced air exhaust is to suck fresh air into a closed space and to forcibly exhaust indoor air, thereby preventing the accumulation of explosive gases, limiting the concentration of combustible mixed gas by the dilution effect of the fresh air, and limiting the residence time of the explosive gases. The mode of inerting the combustible mixed gas is to dilute the combustible mixed gas in the closed space by adopting inert gas to limit the oxygen concentration in the space so as to achieve the effects of reducing the flame propagation rate and effectively inhibiting explosion.
However, the existing security measures of the hydrogen filling station all have the problems that the passive protection measures are adopted to ensure the operation safety of the whole station, the manual field treatment is needed for the dangerous situations such as leakage, fire and the like which occur, and the quick response to the early warning and the hazard treatment which occur cannot be realized.
Disclosure of Invention
In view of the above, the invention provides a modular hydrogen station and a nitrogen explosion suppression system thereof, the nitrogen explosion suppression system can actively suppress explosion, can realize unmanned operation and has quick response, flame is extinguished or the propagation of explosion shock waves is suppressed through nitrogen injection, safety protection is provided for an unattended hydrogen station, the time for response and disposal of accidents of the hydrogen station can be greatly shortened, quick suppression is performed at the initial stage of fire occurrence, and the development and upgrading of the accidents can be effectively avoided.
A nitrogen explosion suppression system for a modular hydrogen station comprises a nitrogen source, a control valve, a nitrogen explosion suppression ring, a safety leakage alarm device and a control device;
high-pressure nitrogen is stored in the nitrogen source;
the nitrogen explosion suppression ring is fixedly arranged at the top of the modular hydrogenation station, is communicated with the nitrogen source through a gas transmission pipeline, and is provided with a plurality of ejectors for ejecting nitrogen;
the control valve is arranged on the gas transmission pipeline and used for controlling the on-off of the gas transmission pipeline;
the safety leakage alarm device is used for detecting the hydrogen concentration and flame in the modular hydrogenation station in real time and transmitting a detection signal to the control device;
the control device is in signal connection with the control valve and the safety leakage alarm device, and controls the control valve to be opened or closed according to the received detection signal.
Further, the safety leakage alarm device comprises a hydrogen concentration detector and a flame detector which are installed in the modular hydrogenation station;
the hydrogen concentration detector is used for detecting the hydrogen concentration in the modular hydrogenation station;
the flame detector is used for detecting flames in the modular hydrogenation station.
Further, when the hydrogen concentration value detected by the hydrogen concentration detector is greater than a preset value or the flame detector detects flame, the control device generates an alarm signal and controls the control valve to be opened.
Furthermore, a pressure reducing valve, a stop valve and a one-way valve are sequentially arranged on the gas transmission pipeline between the nitrogen source and the control valve.
Further, a pressure gauge for detecting the pressure of the nitrogen is further installed on the gas transmission pipeline between the one-way valve and the control valve.
Furthermore, a plurality of ejectors are uniformly distributed at the tops of the hydrogenation machine, the compressor, the hydrogen buffer tank, the connecting pipeline and the valve of the modular hydrogenation station.
Further, the control valve is an electromagnetic valve.
The utility model provides a modularization hydrogenation station, this modularization hydrogenation station includes compressor, hydrogen buffer tank, hydrogenation machine and the arbitrary nitrogen gas explosion suppression system that above-mentioned technical scheme provided.
Further, the device also comprises an exhaust fan for ventilation and an emergency cut-off valve for controlling the on-off of the hydrogen inlet manifold.
Further, the control device of the nitrogen explosion suppression system is in signal connection with the exhaust fan and the emergency cut-off valve, and is used for controlling the opening and closing of the exhaust fan and the opening and closing of the emergency cut-off valve.
Has the advantages that:
because the nitrogen explosion suppression system comprises a nitrogen source for providing high-pressure nitrogen, a nitrogen explosion suppression ring communicated with the nitrogen source through a gas transmission pipeline, a plurality of ejectors for ejecting the nitrogen into the modular hydrogenation station, a control valve for controlling the on-off of the gas transmission pipeline, a safety leakage alarm device for detecting the hydrogen concentration and the flame of the modular hydrogenation station in real time, and a control device for controlling the on-off of the control valve according to a detection signal, therefore, the safety leakage alarm device can detect the hydrogen concentration and the flame of the modular hydrogen station in real time, when the detected hydrogen concentration value is larger than a preset value or flame is detected, the control device enables the control valve to be opened, at the moment, the nitrogen source is communicated with the nitrogen explosion suppression ring through a gas pipeline, and high-pressure nitrogen enters the nitrogen explosion suppression ring and is sprayed into the modular hydrogen station through the ejector, so that the nitrogen explosion suppression operation is realized; the nitrogen explosion suppression system can realize active explosion suppression and unmanned operation through linkage of the safety leakage alarm device and the control device, plays a role in extinguishing flame or suppressing explosion shock wave propagation through nitrogen injection, provides safety protection for the unattended hydrogenation station, is judged by the control device to be started for nitrogen explosion suppression and sends a corresponding action instruction, the whole starting process can be completed within 1s, the time for responding and disposing accidents of the hydrogenation station is greatly shortened, rapid suppression is carried out at the initial stage of fire occurrence, and development and upgrading of accidents can be effectively avoided.
Drawings
FIG. 1 is a schematic structural diagram of a modular hydrogen station according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an operating principle of a nitrogen explosion suppression system according to an embodiment of the present invention.
Wherein, 1-a modular hydrogen station; a 2-nitrogen source; 3-a control valve; 4-nitrogen explosion suppression ring; 5-safety leakage alarm device; 6-a control device; 7-gas transmission pipeline; 8-an ejector; 9-hydrogen concentration detector; 10-a flame detector; 11-a pressure reducing valve; 12-a stop valve; 13-a one-way valve; 14-pressure gauge; 15-a hydrogenation machine; 16-a compressor; 17-a hydrogen buffer tank; 18-air exhauster
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
Referring to fig. 1 and 2, the present invention provides a nitrogen explosion suppression system for a modular hydrogen station 1, which includes a nitrogen source 2, a control valve 3, a nitrogen explosion suppression ring 4, a safety leakage alarm device 5, and a control device 6;
the nitrogen source 2 is stored with high-pressure nitrogen and is used for providing sufficient nitrogen for the nitrogen explosion suppression system; the nitrogen source 2 can be arranged outside the modular hydrogenation station 1 or inside the modular hydrogenation station 1;
the nitrogen explosion suppression ring 4 is fixedly arranged at the top of the modular hydrogenation station 1, is communicated with the nitrogen source 2 through a gas transmission pipeline 7, and is provided with a plurality of ejectors 8 for ejecting nitrogen; high-pressure nitrogen in the nitrogen source 2 can be supplied to the nitrogen explosion suppression ring 4 through the gas transmission pipeline 7; as shown in the structure of fig. 1, a nitrogen explosion suppression ring 4 is fixedly installed at the inner top of the modular hydrogen station 1, the nitrogen explosion suppression ring 4 can be a ring-shaped pipeline, a plurality of ejectors 8 are installed at the bottom of the nitrogen explosion suppression ring 4, the nitrogen input into the nitrogen explosion suppression ring 4 is ejected into the modular hydrogen station 1 through the ejectors 8, and the ejectors 8 can be nozzles or nozzles; the ejectors 8 are uniformly distributed on the tops of the hydrogenation machine 15, the compressor 16, the hydrogen buffer tank 17, the connecting pipeline and the valve of the modular hydrogenation station 1, the ejectors 8 on the nitrogen explosion suppression ring 4 are uniformly distributed above the positions with high arrangement density of key equipment and joints of the pipeline and the valve in the modular hydrogenation station 1, and the specific positions can be positions such as a leakage point of the compressor 16, a leakage point of the hydrogenation machine 15, a leakage point of a valve connecting part, a leakage point of the hydrogen buffer tank 17 and the like;
the control valve 3 is arranged on the gas transmission pipeline 7 and is used for controlling the on-off of the gas transmission pipeline 7; the control valve 3 can be a valve which is convenient for realizing automatic control, such as an electromagnetic valve, an electric valve and the like, when the control valve 3 is in an opening state, the gas transmission pipeline 7 is communicated, high-pressure nitrogen in the nitrogen source 2 can be supplied to the nitrogen explosion suppression ring 4 through the gas transmission pipeline 7, when the control valve 3 is in a closing state, the gas transmission pipeline 7 is disconnected, at the moment, a passage between the nitrogen source 2 and the nitrogen explosion suppression ring 4 is disconnected by the control valve 3, and the high-pressure nitrogen in the nitrogen source 2 cannot be transmitted into the nitrogen explosion suppression ring 4;
the safety leakage alarm device 5 is used for detecting the hydrogen concentration and flame in the modular hydrogenation station 1 in real time and transmitting a detection signal to the control device 6; the safety leakage alarm device 5 comprises a hydrogen concentration detector 9 and a flame detector 10 which are arranged in the modular hydrogenation station 1; the hydrogen concentration detector 9 is used for detecting the hydrogen concentration in the modular hydrogen filling station 1; the flame detector 10 is used for detecting the flame in the modular hydrogenation station 1; the hydrogen concentration detector 9 and the flame detector 10 are both arranged in the modular hydrogenation station 1, and the specific installation number and distribution positions of the hydrogen concentration detector 9 and the flame detector 10 in the modular hydrogenation station 1 can be determined according to actual needs;
the control device 6 is in signal connection with the control valve 3 and the safety leakage alarm device 5, and controls the control valve 3 to be opened or closed according to the received detection signal; when the safety leakage alarm device 5 comprises a hydrogen concentration detector 9 and a flame detector 10, when the hydrogen concentration value detected by the hydrogen concentration detector 9 is greater than a preset value or flame is detected by the flame detector 10, the control device 6 generates an alarm signal and controls the control valve 3 to be opened; the preset value is the maximum value of the hydrogen concentration allowed in the modular hydrogenation station 1.
The working principle of the nitrogen explosion suppression system is that combustible mixed gas is inerted, and the nitrogen is used as the inert gas, so that the combustible mixed gas in the modular hydrogenation station 1 is diluted by the nitrogen to limit the oxygen concentration in the space, thereby achieving the effects of reducing the flame propagation rate and effectively suppressing explosion.
Because the nitrogen explosion suppression system comprises a nitrogen source 2 for providing high-pressure nitrogen, a nitrogen explosion suppression ring 4 communicated with the nitrogen source 2 through a gas transmission pipeline 7, a plurality of ejectors 8 for ejecting the nitrogen into the modular hydrogenation station 1, a control valve 3 for controlling the on-off of the gas transmission pipeline 7, a safety leakage alarm device 5 for detecting the hydrogen concentration and flame of the modular hydrogenation station 1 in real time, and a control device 6 for controlling the on-off of the control valve 3 according to a detection signal, the control device 6 can detect the hydrogen concentration and flame of the modular hydrogenation station 1 in real time through the safety leakage alarm device 5, when the detected hydrogen concentration value is larger than a preset value or the flame is detected, the control valve 3 is opened through the control device 6, at the moment, the nitrogen source 2 is communicated with the nitrogen explosion suppression ring 4 through the gas transmission pipeline 7, the high-pressure nitrogen enters the nitrogen explosion suppression ring 4 and then is ejected into the modular hydrogenation station 1 through the ejectors 8, thereby realizing the nitrogen explosion suppression operation; the nitrogen explosion suppression system can realize active explosion suppression and unmanned operation through the linkage of the safety leakage alarm device 5 and the control device 6, plays a role in extinguishing flame or suppressing explosion shock wave propagation through nitrogen injection, provides safety protection for the unattended hydrogenation station, judges the opening of nitrogen explosion suppression by the control device 6 and sends a corresponding action instruction, the whole starting process can be completed within 1s, greatly shortens the time of accident response and handling of the hydrogenation station, rapidly suppresses in the initial stage of fire occurrence, and can effectively avoid the development and upgrading of accidents.
As shown in the structure of fig. 1 and 2, still install relief pressure valve 11 on gas transmission pipeline 7 between nitrogen source 2 and control valve 3 in proper order, stop valve 12 and check valve 13, the high-pressure nitrogen gas that can carry nitrogen source 2 to in nitrogen gas explosion suppression ring 4 through the relief pressure valve 11 that sets up reduces pressure, stop valve 12 through setting up can open or close gas transmission pipeline 7, prevent the break-make of uncontrollable gas transmission pipeline 7 when breaking down because of control valve 3, can control the flow direction of nitrogen gas through the check valve 13 that sets up, make nitrogen gas can only flow to nitrogen gas explosion suppression ring 4 from nitrogen source 2, make reverse flow can not take place, thereby improve the security and the reliability of nitrogen source 2.
The design pressure in the nitrogen explosion suppression system is 5MPa, and the operation working condition is 1 MPa; in order to ensure that the nitrogen explosion suppression system can stably work under the specified pressure and simultaneously facilitate the real-time detection of the nitrogen pressure in the gas transmission pipeline 7, as shown in the structure of fig. 1, a pressure gauge 14 for detecting the nitrogen pressure is further installed on the gas transmission pipeline 7 between the check valve 13 and the control valve 3.
In addition, as shown in the structure of fig. 1, the invention also provides a modular hydrogen adding station 1, which comprises a compressor 16, a hydrogen buffer tank 17, a hydrogenation machine 15 and any one of the nitrogen explosion suppression systems provided in the above embodiments; the nitrogen explosion suppression system comprises a nitrogen source 2, a control valve 3, a nitrogen explosion suppression ring 4, a safety leakage alarm device 5 and a control device 6; the modular hydrogen filling station 1 also comprises an exhaust fan 18 for ventilation and an emergency cut-off valve for controlling the on-off of a hydrogen inlet main pipe; the control device 6 of the nitrogen explosion suppression system is in signal connection with the exhaust fan 18 and the emergency cut-off valve and is used for controlling the opening and closing of the exhaust fan 18 and the opening and closing of the emergency cut-off valve. The exhaust fan 18 is arranged in the modular hydrogenation station 1 and is used for replacing the mixed gas in the modular hydrogenation station 1; the emergency cutoff valve is for mounting on the hydrogen gas intake manifold so as to cut off the communication path between the dispenser and the hydrogen gas source, whereby the supply of hydrogen gas can be stopped by the closing of the emergency cutoff valve.
The nitrogen explosion suppression system is used for the modular hydrogen station 1 and has the working principle that: the safety leakage alarm device detects the hydrogen concentration and whether flame phenomenon occurs in the modular hydrogenation station 1 in real time, and sends a detection signal to the control device 6, the control device 6 compares the hydrogen concentration value in the obtained detection signal with a preset value, when the hydrogen concentration value is larger than the preset value or flame phenomenon occurs, the control device 6 judges that the nitrogen explosion suppression system needs to be started, firstly, the emergency cut-off valve is closed so as to rapidly cut off the hydrogen source, and the control valve 3 of the nitrogen explosion suppression system is opened, so that high-pressure nitrogen in the nitrogen source 2 enters the nitrogen explosion suppression ring 4 through valves and pipelines such as a pressure reducing valve 11, a stop valve 12, a one-way valve 13, a control valve 3 and the like, and rapidly sprays nitrogen into the module space through an ejector 8 uniformly distributed above each leakage point in the modular hydrogenation station 1 for 30s continuously, when the flame alarm stops alarming, the control valve 3 can be closed, completing the nitrogen explosion suppression operation once, and starting the accident exhaust fan 18 to replace the mixed gas in the module space.
The control time sequence of nitrogen explosion suppression is as follows: when the control device 6 decides to start the nitrogen explosion suppression action, firstly checking whether the emergency cut-off valve is closed to ensure that the hydrogen source is cut off; if the exhaust fan 18 has been turned on, the exhaust fan 18 is turned off; starting a nitrogen explosion suppression system, opening a control valve 3, and spraying nitrogen into the module space; after the injection is completed, the exhaust fan 18 is restarted.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A nitrogen explosion suppression system for a modular hydrogen station is characterized by comprising a nitrogen source, a control valve, a nitrogen explosion suppression ring, a safety leakage alarm device and a control device;
high-pressure nitrogen is stored in the nitrogen source;
the nitrogen explosion suppression ring is fixedly arranged at the top of the modular hydrogenation station, is communicated with the nitrogen source through a gas transmission pipeline, and is provided with a plurality of ejectors for ejecting nitrogen;
the control valve is arranged on the gas transmission pipeline and used for controlling the on-off of the gas transmission pipeline;
the safety leakage alarm device is used for detecting the hydrogen concentration and flame in the modular hydrogenation station in real time and transmitting a detection signal to the control device;
the control device is in signal connection with the control valve and the safety leakage alarm device, and controls the control valve to be opened or closed according to the received detection signal.
2. A nitrogen suppression system as defined in claim 1, wherein said safety leak alarm device includes a hydrogen concentration detector and a flame detector installed in said modular hydrogen station;
the hydrogen concentration detector is used for detecting the hydrogen concentration in the modular hydrogenation station;
the flame detector is used for detecting flames in the modular hydrogenation station.
3. The nitrogen explosion suppression system of claim 2, wherein the control means generates an alarm signal and controls the control valve to be opened when the hydrogen concentration value detected by the hydrogen concentration detector is greater than a preset value or a flame is detected by the flame detector.
4. A nitrogen explosion suppression system as defined in claim 1, wherein a pressure reducing valve, a stop valve and a check valve are further installed in sequence on the gas transmission pipeline between the nitrogen source and the control valve.
5. A nitrogen explosion suppression system as defined in claim 4, wherein a pressure gauge for detecting the pressure of nitrogen is further installed on the gas transmission pipeline between the one-way valve and the control valve.
6. A nitrogen explosion suppression system as defined in claim 1 or 2, wherein a plurality of said ejectors are uniformly distributed on top of the hydrogenators, hydrogen buffer tanks, connecting lines and valves of said modular hydrogenation station.
7. A nitrogen suppression system as defined in claim 1 or 2, wherein said control valve is a solenoid valve.
8. A modular hydrogen station comprising a compressor, a hydrogen buffer tank, a hydrogen engine, and a nitrogen knock down system according to any one of claims 1 to 7.
9. A nitrogen suppression system as defined in claim 8, further comprising an exhaust fan for ventilation and an emergency shut-off valve for controlling the on-off of the hydrogen intake manifold.
10. A nitrogen suppression system as defined in claim 9, wherein the control device of the nitrogen suppression system is in signal connection with the exhaust fan and the emergency cut-off valve for controlling the on-off of the exhaust fan and the on-off of the emergency cut-off valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010791640.4A CN111928116A (en) | 2020-08-07 | 2020-08-07 | Modularization hydrogenation station and nitrogen explosion suppression system thereof |
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| CN202010791640.4A CN111928116A (en) | 2020-08-07 | 2020-08-07 | Modularization hydrogenation station and nitrogen explosion suppression system thereof |
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| CN113090943A (en) * | 2021-03-31 | 2021-07-09 | 上海氢枫能源技术有限公司 | Mobile hydrogen filling station system and explosion-proof method thereof |
| CN113549932A (en) * | 2021-08-10 | 2021-10-26 | 中国人民解放军总医院第六医学中心 | High-concentration hydrogen breathing machine |
| CN113851685A (en) * | 2021-11-30 | 2021-12-28 | 武汉氢能与燃料电池产业技术研究院有限公司 | Hydrogen leakage prevention device for marine fuel cell system |
| CN113983347A (en) * | 2021-11-18 | 2022-01-28 | 中北大学 | Automatic-recognition hydrogenation system and hydrogenation method |
| CN114595648A (en) * | 2022-05-11 | 2022-06-07 | 浙江浙能航天氢能技术有限公司 | Design method and system for inert gas explosion suppression scheme of hydrogenation station |
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| CN116293412A (en) * | 2022-12-02 | 2023-06-23 | 航天氢能科技有限公司 | Automatic liquid hydrogen filling machine and liquid hydrogen filling method |
| CN116221615B (en) * | 2023-03-06 | 2024-05-17 | 北京航天试验技术研究所 | Process control system and control method for safe hydrogenation operation |
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| CN114595648A (en) * | 2022-05-11 | 2022-06-07 | 浙江浙能航天氢能技术有限公司 | Design method and system for inert gas explosion suppression scheme of hydrogenation station |
| CN115607875A (en) * | 2022-09-27 | 2023-01-17 | 浙江浙能航天氢能技术有限公司 | Whole station type nitrogen explosion suppression system |
| CN116293412A (en) * | 2022-12-02 | 2023-06-23 | 航天氢能科技有限公司 | Automatic liquid hydrogen filling machine and liquid hydrogen filling method |
| CN116293412B (en) * | 2022-12-02 | 2024-02-13 | 航天氢能科技有限公司 | Automatic liquid hydrogen filling machine and liquid hydrogen filling method |
| CN116221615B (en) * | 2023-03-06 | 2024-05-17 | 北京航天试验技术研究所 | Process control system and control method for safe hydrogenation operation |
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