CN117108914B - Auxiliary device for preventing pulling leakage of hydrogenation machine - Google Patents

Auxiliary device for preventing pulling leakage of hydrogenation machine Download PDF

Info

Publication number
CN117108914B
CN117108914B CN202311161654.8A CN202311161654A CN117108914B CN 117108914 B CN117108914 B CN 117108914B CN 202311161654 A CN202311161654 A CN 202311161654A CN 117108914 B CN117108914 B CN 117108914B
Authority
CN
China
Prior art keywords
hydrogenation
hose
breaking
machine body
hydrogenation machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202311161654.8A
Other languages
Chinese (zh)
Other versions
CN117108914A (en
Inventor
刘悦
姚晨奕
张嘉欣
张云鹏
李雪芳
巴清心
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University
Original Assignee
Shandong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong University filed Critical Shandong University
Priority to CN202311161654.8A priority Critical patent/CN117108914B/en
Publication of CN117108914A publication Critical patent/CN117108914A/en
Application granted granted Critical
Publication of CN117108914B publication Critical patent/CN117108914B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C5/00Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/02Special adaptations of indicating, measuring, or monitoring equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pipeline Systems (AREA)

Abstract

The invention discloses an auxiliary device for preventing pulling leakage of a hydrogenation machine, which comprises a pull-out part, wherein the pull-out part comprises a stretch-break piece for pulling out a hydrogenation hose, one end of the stretch-break piece is communicated with a hydrogen transmission pipeline in a hydrogenation machine body through a pipeline, the other end of the stretch-break piece is communicated with one end of the hydrogenation hose, the other end of the hydrogenation hose is communicated with a hydrogenation gun, a limiting piece for limiting the hydrogenation hose is arranged on the hydrogenation hose, the limiting piece is arranged between the stretch-break piece and the hydrogenation gun, and the limiting piece is arranged on the hydrogenation machine body; the cutting part is arranged between the hydrogen conveying pipeline of the hydrogenation machine and the hydrogenation machine body, and the hydrogen conveying pipeline of the hydrogenation machine is communicated with the hydrogenation machine body through the cutting part; the monitoring part is arranged on the hydrogenation gun. The invention adopts an active release mode, avoids the damage caused by the dragging of the hydrogenation machine by a vehicle and avoids accidents caused by hydrogen leakage due to the breakage of the hydrogen conveying pipeline.

Description

Auxiliary device for preventing pulling leakage of hydrogenation machine
Technical Field
The invention relates to the technical field of hydrogen safety protection, in particular to an auxiliary device for preventing pulling leakage of a hydrogenation machine.
Background
The hydrogen adding station equipment and the pipeline are complex in arrangement, the working scene is various, and if hydrogen leakage occurs, the accident handling difficulty is high. In order to prevent hydrogen leakage in the hydrogenation process, a locking device is arranged between the conventional hydrogenation gun and a hydrogenation port of a hydrogenation vehicle, so that the hydrogenation gun is prevented from falling out in the hydrogenation process. If the locking of the hydrogenation gun and the vehicle is forgotten to be released due to negligence after the hydrogenation is finished, the hydrogenation gun is easily damaged due to the dragging of the vehicle, and even the hydrogenation machine is dumped. The existing anti-dragging design tends to reinforce the fixing device between the hydrogenation gun and the hydrogenation machine, so that the hydrogenation gun is prevented from being broken due to dragging, the acceleration is high when the vehicle is started, the dragging force is high, the accident can not be completely avoided due to the fact that only reinforcing treatment is carried out, if the hydrogenation machine is inclined due to stress, a large amount of hydrogen leakage can be caused, and if the hydrogenation machine is not timely treated, the possibility of explosion accidents occurs.
Disclosure of Invention
The invention aims to provide an auxiliary device for preventing pulling leakage of a hydrogenation machine, so as to solve the problems in the prior art.
In order to achieve the above object, the present invention provides the following solutions: the invention provides an auxiliary device for preventing pulling leakage of a hydrogenation machine, which comprises:
the separation part comprises a breaking piece used for separating the hydrogenation hose, one end of the breaking piece is communicated with a hydrogen conveying pipeline in the hydrogenation machine body through a pipeline, the other end of the breaking piece is communicated with one end of the hydrogenation hose, the other end of the hydrogenation hose is communicated with a hydrogenation gun, a limiting piece used for limiting the hydrogenation hose is arranged on the hydrogenation hose, the limiting piece is arranged between the breaking piece and the hydrogenation gun, and the limiting piece is arranged on the hydrogenation machine body;
the cutting part is arranged between the hydrogen conveying pipeline of the hydrogenation machine and the hydrogenation machine body, and the hydrogen conveying pipeline of the hydrogenation machine is communicated with the hydrogenation machine body through the cutting part;
and the monitoring part is arranged on the hydrogenation gun.
Preferably, the limiting part comprises a connecting frame, a fixing buckle for clamping the hydrogenation hose is arranged in the connecting frame, the fixing buckle is fixedly connected with the connecting frame, an anti-slip pad is arranged between the fixing buckle and the hydrogenation hose, and the other end of the connecting frame is fixedly connected with the hydrogenation machine body through an struggle component.
Preferably, the break-off assembly comprises a safety catch, a break-off groove is formed in the outer wall of the hydrogenation machine body, one end of the connecting frame is inserted into the break-off groove, and the connecting frame and the break-off groove are fixedly connected through the safety catch.
Preferably, the breaking element is a breaking valve, one end of the breaking valve is communicated with the hydrogenation machine body through a pipeline, and the other end of the breaking valve is communicated with one end of the hydrogenation hose.
Preferably, the cut-off part is arranged as an electromagnetic cut-off valve, and the hydrogen delivery pipeline of the hydrogenation machine is communicated with the hydrogenation machine body through the electromagnetic cut-off valve.
Preferably, the monitoring part comprises a distance alarm device for monitoring the position of the hydrogenation gun, and the distance alarm device is arranged on the hydrogenation gun.
Preferably, the safety bolt, the breaking valve and the electromagnetic stop valve are electrically connected.
Preferably, the hydrogenation hose between the breaking member and the limiting member is provided with a buffer section.
The invention discloses the following technical effects:
1. the invention establishes a two-stage monitoring and triple protection mechanism, and reduces the possibility of occurrence of a vehicle pulling event and accident consequences.
2. The pull-out limiting piece adopted by the invention can strive for time for the smooth and active breakage of the stretch-break valve, so that the hydrogenation hose can be pulled out actively in time, and the hydrogenation machine body is prevented from being dragged by a vehicle.
3. The electromagnetic stop valve between the external hydrogen transmission pipeline of the hydrogenation machine and the hydrogenation machine body can avoid hydrogen leakage caused by the failure of smooth starting of the stretch-break valve.
4. The position monitoring of the hydrogenation gun can prompt a worker to avoid illegal operation in the hydrogenation process, and is used as a first re-early warning of a dragging event.
5. The breaking valve breaks and simultaneously closes the channels of the breaking ports at two ends, so that large-scale hydrogen leakage at the breaking ports is avoided.
Drawings
For a clearer description of an embodiment of the invention or of the solutions of the prior art, the drawings that are needed in the embodiment will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art:
FIG. 1 is a schematic diagram of an auxiliary device for preventing pulling leakage of a hydrogenation machine;
FIG. 2 is a schematic view of the structure of the hydrogenation machine body in the present invention;
FIG. 3 is a cross-sectional view of A-A of FIG. 2;
FIG. 4 is a workflow diagram of the present invention;
wherein, 1, fixing the buckle; 2. an anti-slip pad; 3. a connection frame; 4. a hydrogenation machine body; 5. a safety bolt; 6. a hydrogenation hose; 7. a snap-off valve; 8. a hydrogenation gun; 9. a limiting piece; 10. a hydrogen conveying pipeline of the hydrogenation machine; 11. an electromagnetic stop valve; 12. distance alarm device.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-3, the present invention provides an auxiliary device for preventing pulling leakage of a hydrogenation machine, comprising:
the separation part comprises a breaking piece for separating the hydrogenation hose 6, one end of the breaking piece is communicated with a hydrogen transmission pipeline in the hydrogenation machine body 4 through a pipeline, the other end of the breaking piece is communicated with one end of the hydrogenation hose 6, the other end of the hydrogenation hose 6 is communicated with a hydrogenation gun 8, a limiting piece 9 for limiting the hydrogenation hose 6 is arranged on the hydrogenation hose 6, the limiting piece 9 is arranged between the breaking piece and the hydrogenation gun 8, and the limiting piece 9 is arranged on the hydrogenation machine body 4;
a cutting part, which is arranged between the hydrogenation machine hydrogen conveying pipeline 10 and the hydrogenation machine body 4, and the hydrogenation machine hydrogen conveying pipeline 10 is communicated with the hydrogenation machine body 4 through the cutting part;
and a monitoring unit provided on the hydrogenation gun 8.
The invention adopts the mode that the hydrogenation hose 6 can be pulled out, is different from the existing reinforced hydrogenation machine in order to avoid the dragging accident direction, adopts the design of active pulling out, automatically pulls out the hydrogenation gun 8 and cuts off the hydrogen transmission pipeline 10 of the hydrogenation machine before the accident caused by the dragging of the hydrogenation gun 8 by a vehicle, and avoids the damage caused by the dragging of the hydrogenation machine by the vehicle and the hydrogen leakage caused by the rupture of the hydrogen transmission channel of the hydrogenation machine.
According to the invention, the state of the hydrogenation gun 8 is monitored in real time through the monitoring part, the position of the hydrogenation gun 8 is used as a primary early warning, the limiting part 9 is arranged, if the limiting part 9 breaks, the cutting part is emergently separated from the hydrogenation hose 6, the connection between the hydrogenation hose 6 and the hydrogenation machine body 4 is cut off, and the hydrogen transmission pipeline 10 of the hydrogenation machine is cut off, so that accidents are further avoided. The invention is provided with a triple protection mechanism, namely, a buffer section exists between the limiting piece 9 and the cutting part after the limiting piece 9 is broken, so that the extension distance of the hydrogenation hose 6 can be prolonged, and the time for the cutting part to separate from the hydrogenation hose 6 is prolonged; the arranged breaking piece releases the hydrogenation hose 6; the provided cutting section cuts off the hydrogen delivery pipe 10 of the hydrogenation machine. The invention monitors that the distance between the hydrogenation gun 8 and the hydrogenation machine body 4 in the normal hydrogenation process is in a controllable range, and if the distance is out of a safe range, an alarm is started; meanwhile, the hydrogenation gun 8 is possibly separated from a safe position due to irregular operation in the hydrogenation process, so that only an alarm facility is started, and if the hydrogenation gun is pushed to exceed the limit of a safety valve, a hydrogenation gun release measure is started.
Aiming at the hydrogenation gun 8, the invention can be modified on the original hydrogenation machine, has low modification cost and high popularization feasibility.
Further optimizing scheme, locating part 9 includes connecting frame 3, is provided with the fixed buckle 1 that is used for the solid hydrogenation hose 6 of card in the connecting frame 3, and fixed buckle 1 and connecting frame 3 rigid coupling are provided with slipmat 2 between fixed buckle 1 and the hydrogenation hose 6, and the other end of connecting frame 3 is through struggling out subassembly and hydrogenation machine fuselage 4 rigid coupling.
The anti-slip pad 2 can avoid the relative displacement between the hydrogenation hose 6 and the fixing buckle 1.
Further optimizing scheme, break-off subassembly includes that the safety catch 5 has offered the groove of break-off on the hydrogenation machine fuselage 4 outer wall, and in the groove of break-off was inserted to the one end of linking frame 3, and linking frame 3 and the groove of break-off pass through the 5 rigid couplings of safety catch.
The break-off assembly adopts the replaceable safety bolt 5, the breaking stress can be adjusted according to the requirement, and the safety bolt 5 can be continuously used only by replacing after an accident.
The release limiting piece 9 is arranged to provide buffer for the interface of the hydrogenation hose 6 and to strive for time for the self-release of the hydrogenation hose 6. Before the hydrogenation machine body 4 is truly pulled by a vehicle, a breaking mechanism of the breaking valve 7 is started, the hydrogenation machine body 4 is prevented from being pulled, the safety of the hydrogenation gun 8 is guaranteed to the maximum extent, the damage of accidents to the hydrogenation machine body 4 and the hydrogenation gun 8 is reduced, and after the accidents, the hydrogenation machine can be restarted only by replacing the components such as the valve.
Further optimizing scheme, the stretch-breaking piece sets up to stretch-breaking valve 7, and stretch-breaking valve 7 one end is through pipeline and hydrogenation fuselage 4 intercommunication setting, and the other end of stretch-breaking valve 7 and the one end intercommunication setting of hydrogenation hose 6.
The anti-static device is arranged at the outlet of the hydrogenation hose 6, so that sparks caused by vehicle dragging are avoided.
In a further optimized scheme, the cutting part is arranged as an electromagnetic stop valve 11, and the hydrogenation machine hydrogen conveying pipeline 10 is communicated with the hydrogenation machine body 4 through the electromagnetic stop valve 11.
After the limiting piece 9 is broken, the breaking valve 7 cuts off a channel between the hydrogenation machine body 4 and the hydrogenation hose 6, so that hydrogen leakage caused by the falling-out of the hydrogenation gun 8 is avoided. Meanwhile, the electromagnetic stop valve 11 cuts off a channel between the hydrogen conveying pipeline 10 of the hydrogenation machine and the hydrogenation machine body 4, so that hydrogen leakage caused by failure of other protection facilities is avoided, and the accident risk is further reduced.
Further optimizing scheme, the monitoring part includes the distance alarm device 12 that is used for monitoring hydrogenation rifle 8 position, and distance alarm device 12 sets up on hydrogenation rifle 8.
The hydrogenation gun 8 is provided with a distance alarm device 12, a safe distance is set according to the analysis of the actual working condition, and the position state of the hydrogenation gun 8 is monitored in real time. The distance alarm device 12 is provided as is known in the art.
In a further preferred embodiment, the safety catch 5, the snap-off valve 7 and the electromagnetic shut-off valve 11 are electrically connected.
The safety bolt 5 is linked with the breaking valve 7 and the electromagnetic stop valve 11, the breaking valve 7 and the electromagnetic stop valve 11 are started while the safety bolt 5 is broken, a hydrogen flow path is cut off, the hydrogenation machine body 4 is prevented from being pulled by a vehicle to topple over, an alarm device is triggered, and an accident plan is started.
Further optimizing scheme, the hydrogenation hose 6 between the snap-off part and the limiting part 9 is provided with a buffer section.
Referring to fig. 4, the workflow of the present invention is as follows:
s1, monitoring the position of the hydrogenation gun 8.
In the normal hydrogenation process, the position of the hydrogenation gun 8 is in a controllable range from the position of the hydrogenation machine body 4, and if a dragging accident of the hydrogenation gun 8 occurs, the first judgment basis is that the distance between the hydrogenation gun 8 and the hydrogenation machine body 4 exceeds a specified range. The distance alarm device 12 is installed on the hydrogenation gun 8, and if the distance is out of the safety range, an alarm is started. Since there is also a possibility that the hydrogenation gun 8 will leave the safe location due to an irregular operation during hydrogenation, only the alarm facility is activated at this time.
S2, the safety catch 5 is broken due to dragging, the limiting piece 9 is separated from the hydrogenation machine body 4, the length of the hydrogenation hose 6 between the hydrogenation machine body 4 and a dragging vehicle is increased, and at the moment, the hydrogenation machine body 4 is not really dragged by the vehicle due to the buffer of the increase of the length of the hydrogenation hose 6.
S3, the limiting piece 9 is separated, meanwhile, the stretch-break valve 7 between the hydrogenation hose 6 and the hydrogenation machine body 4 is started, the hydrogenation hose 6 and the stretch-break valve 7 are actively broken, the hydrogenation hose 6 is separated actively, the connection between the hydrogenation hose 6 and the hydrogenation machine body 4 is cut off before the hydrogenation machine body 4 is pulled, and the hydrogenation machine body 4 is prevented from being toppled over due to dragging.
S4, starting an electromagnetic stop valve 11 between the hydrogen conveying pipeline 10 of the hydrogenation machine and the hydrogenation machine body 4, cutting off a hydrogen conveying channel of the hydrogenation machine, and avoiding hydrogen leakage caused by failure of the hydrogenation hose 6 to separate from the stretch-break valve 7.
S5, controlling an accident vehicle, recovering the hydrogenation gun 8, replacing the limiting part 9 and the consumption parts of the snap-off valve 7, and restarting the hydrogenation machine after safety detection.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Claims (5)

1. An auxiliary device for preventing pulling leakage of a hydrogenation machine, comprising:
the separation part comprises a breaking piece used for separating the hydrogenation hose (6), one end of the breaking piece is communicated with a hydrogen conveying pipeline in the hydrogenation machine body (4) through a pipeline, the other end of the breaking piece is communicated with one end of the hydrogenation hose (6), the other end of the hydrogenation hose (6) is communicated with a hydrogenation gun (8), a limiting piece (9) used for limiting the hydrogenation hose (6) is arranged on the hydrogenation hose (6), the limiting piece (9) is arranged between the breaking piece and the hydrogenation gun (8), and the limiting piece (9) is arranged on the hydrogenation machine body (4);
a cutting part which is arranged between a hydrogenation machine hydrogen conveying pipeline (10) and the hydrogenation machine body (4), and the hydrogenation machine hydrogen conveying pipeline (10) and the hydrogenation machine body (4) are communicated through the cutting part;
a monitoring unit provided on the hydrogenation gun (8);
the limiting piece (9) comprises a connecting frame (3), a fixing buckle (1) for clamping the hydrogenation hose (6) is arranged in the connecting frame (3), the fixing buckle (1) is fixedly connected with the connecting frame (3), an anti-slip pad (2) is arranged between the fixing buckle (1) and the hydrogenation hose (6), and the other end of the connecting frame (3) is fixedly connected with the hydrogenation machine body (4) through an struggle component;
the breaking-off assembly comprises a safety catch (5), a breaking-off groove is formed in the outer wall of the hydrogenation machine body (4), one end of the connecting frame (3) is inserted into the breaking-off groove, and the connecting frame (3) and the breaking-off groove are fixedly connected through the safety catch (5);
the breaking piece is arranged to be a breaking valve (7), one end of the breaking valve (7) is communicated with the hydrogenation machine body (4) through a pipeline, and the other end of the breaking valve (7) is communicated with one end of the hydrogenation hose (6).
2. The auxiliary device for preventing pulling leakage of a hydrogenation machine according to claim 1, wherein: the cutting part is arranged as an electromagnetic stop valve (11), and the hydrogen conveying pipeline (10) of the hydrogenation machine is communicated with the hydrogenation machine body (4) through the electromagnetic stop valve (11).
3. The auxiliary device for preventing pulling leakage of a hydrogenation machine according to claim 2, wherein: the monitoring part comprises a distance alarm device (12) for monitoring the position of the hydrogenation gun (8), and the distance alarm device (12) is arranged on the hydrogenation gun (8).
4. An auxiliary device for preventing pulling leakage of a hydrogenation machine according to claim 3, wherein: the safety bolt (5), the breaking valve (7) and the electromagnetic stop valve (11) are electrically connected.
5. The auxiliary device for preventing pulling leakage of a hydrogenation machine according to claim 4, wherein: the hydrogenation hose (6) located between the breaking piece and the limiting piece (9) is provided with a buffer section.
CN202311161654.8A 2023-09-11 2023-09-11 Auxiliary device for preventing pulling leakage of hydrogenation machine Active CN117108914B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311161654.8A CN117108914B (en) 2023-09-11 2023-09-11 Auxiliary device for preventing pulling leakage of hydrogenation machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311161654.8A CN117108914B (en) 2023-09-11 2023-09-11 Auxiliary device for preventing pulling leakage of hydrogenation machine

Publications (2)

Publication Number Publication Date
CN117108914A CN117108914A (en) 2023-11-24
CN117108914B true CN117108914B (en) 2024-03-19

Family

ID=88807484

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311161654.8A Active CN117108914B (en) 2023-09-11 2023-09-11 Auxiliary device for preventing pulling leakage of hydrogenation machine

Country Status (1)

Country Link
CN (1) CN117108914B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201217631Y (en) * 2008-04-11 2009-04-08 北京航天发射技术研究所 Shut-off protection device for air feeding machine of natural gas liquid
CN106989275A (en) * 2017-04-28 2017-07-28 张家港富瑞氢能装备有限公司 A kind of hydrogen charging line system
CN209925712U (en) * 2019-03-05 2020-01-10 上海百图低温阀门有限公司 Hydrogenation machine that can repeat installation fast is with breaking valve
CN210770485U (en) * 2019-09-16 2020-06-16 淮安新奥燃气有限公司 Dragging-preventing device for gas-adding pipeline
CN213840479U (en) * 2021-07-05 2021-07-30 液空厚普氢能源装备有限公司 Hose hangs balanced system
CN113566115A (en) * 2021-07-05 2021-10-29 上海氢枫能源技术有限公司 Anti-toppling hydrogenation machine and control method thereof
CN215411381U (en) * 2020-12-18 2022-01-04 盐城市大丰燃气设备有限公司 Compressed natural gas dispenser with self-cutting structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201217631Y (en) * 2008-04-11 2009-04-08 北京航天发射技术研究所 Shut-off protection device for air feeding machine of natural gas liquid
CN106989275A (en) * 2017-04-28 2017-07-28 张家港富瑞氢能装备有限公司 A kind of hydrogen charging line system
CN209925712U (en) * 2019-03-05 2020-01-10 上海百图低温阀门有限公司 Hydrogenation machine that can repeat installation fast is with breaking valve
CN210770485U (en) * 2019-09-16 2020-06-16 淮安新奥燃气有限公司 Dragging-preventing device for gas-adding pipeline
CN215411381U (en) * 2020-12-18 2022-01-04 盐城市大丰燃气设备有限公司 Compressed natural gas dispenser with self-cutting structure
CN213840479U (en) * 2021-07-05 2021-07-30 液空厚普氢能源装备有限公司 Hose hangs balanced system
CN113566115A (en) * 2021-07-05 2021-10-29 上海氢枫能源技术有限公司 Anti-toppling hydrogenation machine and control method thereof

Also Published As

Publication number Publication date
CN117108914A (en) 2023-11-24

Similar Documents

Publication Publication Date Title
CA2302631C (en) Wet-type sprinkler system
EP1779903B1 (en) Fire extinguishing system utilizing the engine coolant
EP3176486B1 (en) Coupling fitting
US6152191A (en) Apparatus and method for controlling and prevention of venting of gaseous fuel to atmosphere from a vehicle tank at completion of a fuelling process
CN117108914B (en) Auxiliary device for preventing pulling leakage of hydrogenation machine
CN205469104U (en) Urgent exhaust device of locomotive brake system train pipe
CN115025418B (en) Motor vehicle and method for introducing a fire extinguishing agent into a battery
JP5603682B2 (en) Fire hydrant equipment
US5983935A (en) LP gas container valve against disasters
CN104180165A (en) Pipeline safe break-off system
CN110548240A (en) Fire detection tube type automatic dry powder fire extinguishing system
CN103410728A (en) Safety device of screw pump for explosive material production
KR20200003712A (en) Fluid fuel supply device
CN109646847B (en) Fire detection and fire-fighting linkage device based on graphic processing
CN214007334U (en) Fuel system
CN115628404A (en) Emergency treatment method for oil spill of well bolt of plateau pipe network
CN206130411U (en) Ware of breaking for building
GB2466640A (en) Safety pin arrangement for a multi-hitch
EP1103285B1 (en) Method and apparatus for reducing the consequences of a fire in a tunnel
CN105107122A (en) Pipe network type ultra-fine dry powder extinguisher
CN215489135U (en) Oil pipe assembly with pressure monitoring function
JPH1199222A (en) Sprinkler fire extinguishing equipment
JP2011052473A (en) Piping system for supplying fuel to working machine
CN111494861A (en) Mechanical automatic fire extinguishing device
CN215042702U (en) Safety limiting device suitable for liquid storage vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant