CN103742786A - Vehicle liquefied gas impact safety system - Google Patents
Vehicle liquefied gas impact safety system Download PDFInfo
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- CN103742786A CN103742786A CN201410024285.2A CN201410024285A CN103742786A CN 103742786 A CN103742786 A CN 103742786A CN 201410024285 A CN201410024285 A CN 201410024285A CN 103742786 A CN103742786 A CN 103742786A
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- control valve
- hydraulic pressure
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- fuel gas
- safety
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Abstract
The invention discloses a vehicle liquefied gas impact safety system in the field of equipment safety devices, and belongs to a vehicle fuel gas system suitable for liquefied natural gas (LNG), liquefied petroleum gas (LPG) and compressed natural gas (CNC). The vehicle liquefied gas impact safety system comprises a hydraulic pressure control valve, a capillary oil pipe and an impact sensor, and is characterized in that a capillary steel pipe is communicated with the hydraulic pressure control valve and the impact sensor, the impact sensor is arranged on an external protective structure of a fuel gas system pipeline, the capillary oil pipe is connected with a hydraulic pressure charging system, the hydraulic pressure control valve is of an opening state under the action of hydraulic pressure, the hydraulic pressure control valve is arranged on an outlet of a fuel gas bottle, and the hydraulic pressure control valve is of a closing state when in decompression. When the vehicle fuel gas system is impacted, an impact safety valve automatically closes an outer output pot of the fuel gas bottle, so that the safety of the vehicle fuel gas system is improved. The vehicle liquefied gas impact safety system has the advantages of reasonable structure, easiness for installation, safety, reliability and the like.
Description
Technical field
Safety system is clashed in a kind of motor liquified gas combustion gas that the present invention relates to gas-fired equipment safety installations field, is specially adapted to the vehicle fuel gas system of LNG Liquefied natural gas (LNG), liquefied petroleum gas (LPG) (LPG) and compressed natural gas (CNG).
Background technique
LNG Liquefied natural gas (LNG), liquefied petroleum gas (LPG) (LPG) and compressed natural gas (CNG), compared with current conventional vehicle fuel bavin Water Oil Or Gas, are a kind of low-carbon (LC) clean energy resourcies, in the application in vehicle fuel field, constantly increase.Be mainly used in bus, heavy truck and transport vehicle etc., after replacement fuel oil, can effectively reduce the discharge of carbon dioxide, sulfur dioxide and nitrogen oxide.But the secondary disaster of fuel gas system when vehicle encounters traffic accident can not be ignored.Wherein, the Main Ingredients and Appearance of LNG Liquefied natural gas (LNG) is methane, its storage in liquid temperature-162 ℃, as leak, it is approximately 600 times of its storage in liquid volumes with amount gaseous natural gas volume; Compressed natural gas (CNG) stores under 200 atmospheric pressure, once leak, can in the short time, form a large amount of flammable vapor cloud, and when meeting with traffic accident, driver may have no time and experience is carried out timely fuel shutoff source of the gas.Once gas pipeline is because of accident breakage, LNG Liquefied natural gas, liquefied petroleum gas (LPG) or compressed natural gas in fuel gas cylinder all can leak, form flammable, can gas explosion cloud.The high temperature heat sources such as the on-the-spot spark because of metal bump friction generation or outlet pipe all may be ignited, and endanger huge.For a large amount of passengers on bus, its harm is inestimable especially.For the safety of personnel and property, the Safety performance of vehicle fuel gas system has much room for improvement.
Summary of the invention
The object of this invention is to provide a kind of vehicle fuel gas system and clash into safety valve (ISV), it act as when vehicle is subject to clashing into, and automatically closes the outlet of fuel gas cylinder, and the fuel gas under the state that can effectively avoid traffic accident in fuel gas cylinder leaks.
The present invention is achieved by the following technical solutions:
Safety system is clashed in a kind of motor liquified gas combustion gas, comprise hydraulic control valve, capillary oil pipe and shock inductor, it is characterized in that: capillary tubing is communicated with hydraulic control valve and clashes into inductor, clashing into inductor is arranged in fuel gas system pipeline outer protection structure, capillary oil pipe connects hydraulic pressure boosting system, hydraulic control valve is opening state under hydraulic pressure, hydraulic control valve is arranged on the outlet of fuel gas cylinder, during hydraulic control valve decompression, be closed condition, when fuel vehicle is collided, and while breaking the outer steel structure of fuel gas cylinder protective tube road system, will certainly crash through the shock inductor being arranged on structural framing, now, hydraulic oil in inductor is released out, cause hydraulic control valve pressure release to cut off rapidly air delivering pipeline, stop fuel cylinder air feed, above-mentioned technological scheme is done to further restriction, and described shock inductor is to adopt frangible pottery or vial, and there is metal shell protecting jacket outside, only when being subject to external impact, just may break, above-mentioned technological scheme is done to further restriction, clash into inductor and be arranged in fuel gas system pipeline outer protection structure, clash into inductor one or more are set, clashing into inductor can be arranged on the position being easily impacted according to the situation of concrete equipment, above-mentioned technological scheme is done to further restriction, capillary oil pipe is provided with topping up safety check with being connected between hydraulic pressure boosting system, clashing into after inductor recovers and can carrying out unidirectional supercharging by the hydraulic pressure boosting system of vehicle itself, recover its safety protection function, prevent that gas cylinder fuel gas from flowing backwards simultaneously, above-mentioned technological scheme is done to further restriction, and hydraulic control valve is with hand reset function.
The present invention has following beneficial effect:
Rational in infrastructure, install easily;
2. safe and reliable.
Accompanying drawing explanation
Fig. 1 is that motor liquified gas combustion gas shock safety system hydraulic control valve (ISV) is installed and used position;
Fig. 2 is that safety system hydraulic control valve (ISV) system diagram is clashed in motor liquified gas combustion gas;
Fig. 3,4 clashes into safety system for motor liquified gas combustion gas and clashes into sensor structure schematic diagram;
Fig. 5 is that safety system hydraulic control valve (ISV) structural representation is clashed in motor liquified gas combustion gas.
Embodiment
Below in conjunction with the drawings and specific embodiments, content of the present invention is described further:
It installs and uses position as shown in Figure 1 a kind of hydraulic control valve (ISV) of motor liquified gas combustion gas shock safety system, by the preferred arrangement to existing vehicle fuel gas system, hydraulic control valve 1A arranges the root that is arranged on blowdown piping, manual atmospheric valve 2 is equipped with in end, topping up safety check 3 is arranged on and fills material pipeline root, prevents that gas cylinder fuel gas from flowing backwards.Gas cylinder is drawn to change into from motor by gas cylinder from the feeding pipe of pressurization system 4 and is drawn for fuel conduit, and hydraulic control valve 1B arranges the root that is arranged on the outer defeated pipeline of fuel gas cylinder.
A kind of motor liquified gas combustion gas is clashed into safety system hydraulic control valve (ISV) system as shown in Figure 2; hydraulic control valve 1A and hydraulic control valve 1B connect by capillary tubing a; upper inductor b and the c of connecting of capillary tubing a; inductor b and c are arranged on fuel cylinder structure framework; its quantity based on fuel gas cylinder concrete mounting point onboard, arranges to protect fuel gas cylinder pipeline.When crashing any one inductor b of being arranged on structural framing or c, the hydraulic oil of releasing out, two shock safety valve 1A of series connection and 1B fuel shutoff gas supply timely and effectively and gas exhaust piping.
A kind of motor liquified gas combustion gas is clashed into safety system shock sensor structure and is shown as shown in Figures 3 and 4; inductor b-1 and c-1 are pottery or vial; hydraulic oil is equipped with in inside; by threaded coupling, connect capillary tubing; inductor b-2 and c-1 are metal shell protecting jacket; when being used for preventing installing or overhauling, break up inductor b-1 or c-1, cause hydraulic fluid leak, finally cause hydraulic control valve 1A and 1B to close.
A kind of hydraulic control valve (ISV) structure of motor liquified gas combustion gas shock safety system as shown in Figure 5.Hydraulic control valve 1, in closed condition, wherein comprises liquid entering hole 1-1, liquid outlet 1-2, capillary tubing interface 1-3 and fill hydraulic oil port 1-4.When fuel vehicle is subject to front and back collision, OFFSET COLLISION and falls, while breaking the inductor b that is arranged on fuel gas bottle system structural framing or c, hydraulic oil leaks out to inductor b and c by capillary tubing interface 1-3 UNICOM, clash into safety valve 1A and 1B decompression, spring promotion valve rod is closed the passage of liquid entering hole 1-1 and liquid outlet 1-2, stop fuel gas cylinder and continue air feed, the leakage of fuel gas while preventing fuel gas pipeline fracture, avoid unnecessary disaster to occur, the Security that has improved existing vehicle fuel gas system.When clashing into safety valve 1A and 1B again by filling hydraulic oil port 1-4 when oil-filled, oil pressure can holddown spring, pulls valve rod to open the passage of liquid entering hole 1-1 and liquid outlet 1-2 simultaneously, recovers fuel gas cylinder air feed.Hydraulic control valve 1 is provided with valve position restore funcitons, by artificial twisting handwheel, opens the passage of liquid entering hole 1-1 and liquid outlet 1-2, and hydraulic control valve 1A and 1B open, and fuel gas cylinder can recover air feed.After hydraulic control valve 1 pressure release, need to again by filling hydraulic oil port 1-4, supplement hydraulic oil, change broken impinger simultaneously, make hydraulic control valve 1 in an open position, it recovers normal function.
Claims (5)
1. safety system is clashed in a motor liquified gas combustion gas; comprise hydraulic control valve, capillary oil pipe and clash into inductor; it is characterized in that: capillary tubing is communicated with hydraulic control valve and clashes into inductor; clashing into inductor is arranged in fuel gas system pipeline outer protection structure; capillary oil pipe connects hydraulic pressure boosting system; hydraulic control valve is opening state under hydraulic pressure, and hydraulic control valve is arranged on the outlet of fuel gas cylinder, is closed condition during hydraulic control valve decompression.
2. safety system is clashed in motor liquified gas combustion gas according to claim 1, it is characterized in that: described shock inductor is to adopt frangible pottery or vial, and there is metal shell protecting jacket outside.
3. safety system is clashed in motor liquified gas combustion gas according to claim 1, it is characterized in that: clash into inductor and be arranged in fuel gas system pipeline outer protection structure, clash into inductor one or more are set.
4. safety system is clashed in motor liquified gas combustion gas according to claim 1, it is characterized in that: capillary oil pipe be connected topping up safety check between hydraulic pressure boosting system.
5. safety system is clashed in motor liquified gas combustion gas according to claim 1, it is characterized in that: hydraulic control valve is with hand reset function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024285.2A CN103742786B (en) | 2014-01-20 | 2014-01-20 | Security system is clashed in motor liquified gas combustion gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024285.2A CN103742786B (en) | 2014-01-20 | 2014-01-20 | Security system is clashed in motor liquified gas combustion gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103742786A true CN103742786A (en) | 2014-04-23 |
| CN103742786B CN103742786B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410024285.2A Active CN103742786B (en) | 2014-01-20 | 2014-01-20 | Security system is clashed in motor liquified gas combustion gas |
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| CN (1) | CN103742786B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753817A (en) * | 2017-07-05 | 2020-02-04 | 宝马股份公司 | Method for venting at least one pressure vessel and pressure vessel system |
| CN110779037A (en) * | 2018-07-26 | 2020-02-11 | 戴维·贝克 | Sheet fuel feeder |
| US11117449B2 (en) | 2016-09-16 | 2021-09-14 | Carrier Corporation | Fuel system control for refrigeration unit engine |
| CN113494676A (en) * | 2020-04-01 | 2021-10-12 | 上海汽车集团股份有限公司 | High-pressure gas cylinder and damage monitoring device thereof |
| US12017512B2 (en) | 2018-08-10 | 2024-06-25 | Carrier Corporation | Crash detection system for transport refrigeration units |
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| KR20020035736A (en) * | 2000-11-07 | 2002-05-15 | 이용철 | Indication of installation for car accident location |
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| CN102147049A (en) * | 2011-01-17 | 2011-08-10 | 丁雨福 | Horizontal low-temperature insulating air cylinder and vehicle power system taking gas as power source |
| KR20120136326A (en) * | 2012-11-02 | 2012-12-18 | 삼성중공업 주식회사 | Gas passage way structure and liquefied natural gas storage tank having the same |
| CN203686577U (en) * | 2014-01-20 | 2014-07-02 | 辰一(上海)石油天然气工程技术有限公司 | Liquefied gas and fuel gas impact safety system for vehicle |
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2014
- 2014-01-20 CN CN201410024285.2A patent/CN103742786B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100932A (en) * | 1975-09-19 | 1978-07-18 | P.D. Rasspe Soehne | Pipe burst safety device for natural gas pipe lines or the like |
| DE2854982A1 (en) * | 1978-12-20 | 1980-07-10 | Ulrich Kiedaisch | Safety cut=out switch for vehicle electrics - has impact sensors linked to pressurised isolator on main battery lead |
| CN2400677Y (en) * | 1999-10-30 | 2000-10-11 | 中原石油勘探局 | Self-cooling liquefied natural gas tank |
| KR20020035736A (en) * | 2000-11-07 | 2002-05-15 | 이용철 | Indication of installation for car accident location |
| CN1846094A (en) * | 2003-08-28 | 2006-10-11 | 丰田自动车株式会社 | Gas supply apparatus |
| CN101946114A (en) * | 2008-02-14 | 2011-01-12 | 乔治洛德方法研究和开发液化空气有限公司 | Gas filling and dispensing device, vessel with such device, and operational circuit |
| CN102147049A (en) * | 2011-01-17 | 2011-08-10 | 丁雨福 | Horizontal low-temperature insulating air cylinder and vehicle power system taking gas as power source |
| KR20120136326A (en) * | 2012-11-02 | 2012-12-18 | 삼성중공업 주식회사 | Gas passage way structure and liquefied natural gas storage tank having the same |
| CN203686577U (en) * | 2014-01-20 | 2014-07-02 | 辰一(上海)石油天然气工程技术有限公司 | Liquefied gas and fuel gas impact safety system for vehicle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11117449B2 (en) | 2016-09-16 | 2021-09-14 | Carrier Corporation | Fuel system control for refrigeration unit engine |
| CN110753817A (en) * | 2017-07-05 | 2020-02-04 | 宝马股份公司 | Method for venting at least one pressure vessel and pressure vessel system |
| CN110753817B (en) * | 2017-07-05 | 2022-06-07 | 宝马股份公司 | Method for venting at least one pressure vessel and pressure vessel system |
| CN110779037A (en) * | 2018-07-26 | 2020-02-11 | 戴维·贝克 | Sheet fuel feeder |
| US12017512B2 (en) | 2018-08-10 | 2024-06-25 | Carrier Corporation | Crash detection system for transport refrigeration units |
| CN113494676A (en) * | 2020-04-01 | 2021-10-12 | 上海汽车集团股份有限公司 | High-pressure gas cylinder and damage monitoring device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103742786B (en) | 2016-09-07 |
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