CN104792661B - A kind of On Lng Leakage spreads fire integration experimental platform - Google Patents
A kind of On Lng Leakage spreads fire integration experimental platform Download PDFInfo
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- CN104792661B CN104792661B CN201510121141.3A CN201510121141A CN104792661B CN 104792661 B CN104792661 B CN 104792661B CN 201510121141 A CN201510121141 A CN 201510121141A CN 104792661 B CN104792661 B CN 104792661B
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Abstract
The invention provides a kind of On Lng Leakage to spread fire integration experimental platform,The platform includes field experiment and field experiment periphery combustible gas alarming instrument,Field experiment includes liquefied natural gas storing/conveying system,Collecting tank experimental system,Measurement and Control System and security protection system,Each system is cooperated with each other,LNG tank passes through fire wall transportation of liquefied natural gas by adiabatic flexible pipe,Adiabatic flexible pipe is connected to different liquid pools or liquefied natural gas trench region,When liquid pool and liquefied natural gas groove are tested,By the various sensors and thermal camera that are distributed in field experiment,Collect various experimental datas,Realize to liquefied natural gas diffusion temperature field,Methane concentration is distributed,Liquefied natural gas ignition temperature field,The measurement of thermal radiation field,It has extensively studied natural gas vaporization diffusion property and combustion characteristics,For liquefied natural gas yard security arrangement,The research of liquefied natural gas diffusion fire suppression technology provides data and supported.
Description
Technical field
The present invention relates to On Lng Leakage diffusion fire field, more particularly to a kind of On Lng Leakage diffusion fire
Calamity integration experimental platform.
Background technology
With《Natural gas " 12 planning "》Appearance, liquefied natural gas is widely used.Liquefied natural gas
With low temperature, inflammable and explosive double attribute, once leaking, cryogenic natural gas easily causes personnel's injury, runs into incendiary source,
Fire explosion may occur.In recent years, On Lng Leakage diffusion fire incident also happens occasionally, and the country is directed to liquid
Change the method that natural gas harm research mainly uses numerical simulation, not yet carry out the liquefied natural gas experiment of correlation, lack credible
Experimental data.
Chinese patent, publication number CN 202793971U, on 03 13rd, 2013 open, and a kind of small chi is relate in file
Spend On Lng Leakage diffusion and pond fire combustion simulation experiment porch, be with the present invention similar in patent.
On Lng Leakage diffusion experiment fire platform is rationally built, carries out related experiment, research liquefied natural gas is let out
Diffusion property and combustion characteristics are leaked, for preventing that suppressing liquefied natural gas diffusion fire suffers from very important meaning.
The content of the invention
Object of the present invention is to provide one kind liquid occurs in the various liquefied natural gas yard collecting tanks of real simulation
Change the large-scale experiment platform of the accident scene of natural gas leaking diffusion fire, and can be by carrying out liquefied natural gas diffusion temperature
Field, methane concentration distribution, the measurement of liquefied natural gas ignition temperature field, thermal radiation field, further investigation natural gas vaporization expand
Characteristic and combustion characteristics are dissipated, the research that fire suppression technology is spread for liquefied natural gas yard security arrangement, liquefied natural gas carries
Supported for data.
The present invention adopts the following technical scheme that：
A kind of On Lng Leakage spreads fire integration experimental platform, including field experiment and field experiment periphery combustible gas
Body alarm, the field experiment include liquefied natural gas storing/conveying system, collecting tank experimental system, Measurement and Control System and
Security protection system, the liquefied natural gas storing/conveying system including liquefied natural gas unload area, LNG tank with
And liquefied natural gas delivery pipeline system, the LNG tank are provided with supercharging gasifier；The collecting tank experiment system
System includes liquid pool, liquefied natural gas groove and igniter, and the liquid pool includes small-sized liquid pool, medium-sized liquid pool, large-scale liquid pool, institute
State medium-sized liquid pool and large-scale liquid pool is respectively arranged with pollution discharge pond, large-scale liquid pool is also connected with the liquefied natural gas groove；The survey
Amount control system includes control unit, measuring unit, thermal camera and valve, the measuring unit, thermal camera, valve
All it is connected to the igniter in described control unit, the measuring unit includes sensing outside liquid pool inner sensor group and liquid pool
Device group；The security protection system includes liquefied natural gas memory block collecting tank, liquefied natural gas memory block combustible gas alarm
Instrument, fire wall and water curtain system；The liquefied natural gas is unloaded area, LNG tank, liquefied natural gas memory block collection
Liquid pool, liquefied natural gas memory block combustible gas alarming instrument and control unit are located at fire wall side, the collecting tank experiment
System, measuring unit, thermal camera and water curtain system are located at fire wall opposite side；LNG tank passes through the day that liquefies
For right letter shoot road system through fire wall connection collecting tank experimental system, the water curtain system is enclosed in the collecting tank experiment
The surrounding of system and the measuring unit, water curtain system are connected in described control unit.
Preferably, field experiment periphery combustible gas alarming instrument has four, field experiment periphery combustible gas alarm
Instrument is located at four angles of the field experiment respectively.
Preferably, the liquefied natural gas delivery pipeline system includes insulated piping and several blind plates, and the blind plate is set
Put on insulated piping.
Preferably, the liquid pool inner sensor group includes several sensor combinations and liquid level sensor, is passed in liquid pool
Sensor group is arranged in liquid pool；The liquid pool outer sensor group is arranged on outside liquid pool, and liquid pool outer sensor group passes including several
Sensor combines, and it is upward that several described sensor combinations are radially evenly distributed in the outer leeward of liquid pool.
Preferably, the sensor combinations are by a temperature sensor, a thermal radiation sensor, a methane concentration
What sensor series formed on a support.
Preferably, the water curtain system includes spray water with high pressure pipeline and several shower nozzles, and the shower nozzle is arranged on high pressure spray
On waterpipe.
Preferably, it is provided with removable baffle plate between the large-scale liquid pool and the liquefied natural gas groove.
The present invention has following beneficial effect：
Fire wall separates test block and operating space, operating personnel is realized liquefied natural gas under the working environment of safety
The a series of operations and simulation such as leakage, diffusion, igniting；The periphery of field experiment is mounted with field experiment periphery combustible gas alarm
Instrument, the methane concentration of field experiment periphery can be monitored in real time, remind staff whether safe and whether can normally operate,
The safety of operating personnel is ensured；Blind plate is provided with insulated piping, the pipeline reserved opening of experiment is not involved in for shutting, can be made
Liquefied natural gas leads to the liquid pool specified and liquefied natural gas groove, so can really simulate various liquefied natural gas stations
The accident scene of On Lng Leakage diffusion fire occurs in the collecting tank of field, and carries out the On Lng Leakage of different scales
Spread fire test；Liquefied natural gas memory block collecting tank, the liquefaction day that may be leaked for collecting liquefaction natural gas storage area
Right gas；Pollution discharge pond in medium-sized liquid pool and large-scale liquid pool, real rainwater in simulation yard collecting tank can be collected.
The various sensors and thermal camera of field experiment are distributed in, various experimental datas can be collected, realized to liquid
Change Gas diffusion temperature field, methane concentration distribution, the measurement of liquefied natural gas ignition temperature field, thermal radiation field, further investigation
Natural gas vaporization diffusion property and combustion characteristics, it is liquefied natural gas yard security arrangement, liquefied natural gas diffusion fire
The research of calamity suppression technology provides data and supported.Water curtain system, water under high pressure can be sprayed, for preventing and suppressing liquefied natural gas liquid
The fire out of control caused by and diffusion are tested in pond, ensure the safety of whole experiment porch.
Brief description of the drawings
Fig. 1 is On Lng Leakage diffusion fire integration experimental platform schematic diagram.
Fig. 2 is liquefied natural gas liquid pool experiment sensor arrangement schematic diagram.
Fig. 3 is liquefied natural gas feed-line schematic diagram.
Embodiment
The present invention will be described in detail below in conjunction with the accompanying drawings：
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of On Lng Leakage spreads fire integration experimental platform, including field experiment
With field experiment periphery combustible gas alarming instrument 6, field experiment periphery combustible gas alarming instrument 6 has four, field experiment periphery combustible gas
Body alarm 6 is located at four angles of field experiment respectively.Field experiment includes liquefied natural gas storing/conveying system, collecting tank experiment system
System, Measurement and Control System and security protection system, liquefied natural gas storing/conveying system including liquefied natural gas unload area 1,
LNG tank 3 and liquefied natural gas delivery pipeline system 17, liquefied natural gas delivery pipeline system 17 include thermal insulation
Pipeline 17-1 is arranged on insulated piping 17-1 with several blind plates 17-2, blind plate 17-2, and blind plate is used to shut to be not involved in testing
Pipeline reserved opening, liquefied natural gas can be made to lead to the liquid pool specified and liquefied natural gas groove 18, LNG tank 3
It is provided with supercharging gasifier.Collecting tank experimental system includes liquid pool, liquefied natural gas groove 18 and igniter 22, and liquid pool includes
Small-sized liquid pool 19, medium-sized liquid pool 15, large-scale liquid pool 20, medium-sized liquid pool 15 are provided with pollution discharge pond 14, the large-scale row of being provided with of liquid pool 20
Dirty pond 21, large-scale liquid pool 20 are also connected with liquefied natural gas groove 18, set between large-scale liquid pool 20 and liquefied natural gas groove 18
There is removable baffle plate.Measurement and Control System includes control unit 5, measuring unit, thermal camera 12 and valve 16, and measurement is single
Member, thermal camera 12, valve 16 and igniter 22 are all connected in control unit 5, and measuring unit includes liquid pool inner sensor
Group and liquid pool outer sensor group, liquid pool inner sensor group include several sensor combinations and liquid level sensor 13, in liquid pool
Sensor group is arranged in liquid pool；Liquid pool outer sensor group is arranged on outside liquid pool, and liquid pool outer sensor group senses including several
Device combines, and it is upward that several sensor combinations are radially evenly distributed in the outer leeward of liquid pool.Sensor combinations are by one
The sensing methane concentration device 11 of thermal radiation sensor 10, one of temperature sensor 9, one is connected on what is formed on a support；Peace
Full protection system includes liquefied natural gas memory block collecting tank 2, liquefied natural gas memory block combustible gas alarming instrument 4, fire wall 7
And water curtain system 8, liquefied natural gas memory block collecting tank 2, the liquefaction that may be leaked for collecting liquefaction natural gas storage area
Natural gas.Unload area 1, LNG tank 3, liquefied natural gas memory block collecting tank 2, liquefied natural gas of liquefied natural gas is deposited
Storage area combustible gas alarming instrument 4 and control unit 5 are located at the side of fire wall 7, collecting tank experimental system, measuring unit, red
Outer video camera 12 and water curtain system 8 are located at fire wall opposite side；LNG tank 3 passes through liquefied natural gas transfer pipeline
System 17 connects collecting tank experimental system through fire wall 7, and water curtain system includes spray water with high pressure pipeline and several shower nozzles, shower nozzle
On the pipeline that sprays water with high pressure, water curtain system 8 is enclosed in the surrounding of the collecting tank experimental system and the measuring unit, water
Curtain system 8 is connected in control unit 5.
LNG tank 3 passes through the transportation of liquefied natural gas of fire wall 7 by adiabatic flexible pipe 17-1, according to experiment demand
Blind plate is set, adiabatic flexible pipe 17-1 is connected to different liquid pools or the region of liquefied natural gas groove 18, passes through control valve
16, control the outflow and closing of liquefied natural gas；After liquefied natural gas reaches certain depth in liquid pool, transportation of liquefied is closed
Natural gas.The temperature after natural gas vaporization diffusion can be now measured by temperature sensor 9 and sensing methane concentration device 10
Degree distribution and methane concentration distribution, and simultaneously by liquid level sensor 13, the liquid level change of measurement liquefied natural gas, and then obtain liquid
Change natural gas evaporation rate.Liquefied natural gas in the liquid pool of experiment needs is lighted by ignition system 22, passes through temperature sensor 9
Liquefied natural gas combustion field Temperature Distribution and heat radiation distribution are measured with thermal radiation sensor 11；By liquid level sensor 13, survey
The change of liquefied natural gas liquid level is measured, and then obtains the various data of liquefied natural gas burning；And during whole experiment, lead to
Cross thermal camera 12 and observe and record liquefied natural gas diffusion combustion situation.
When phenomenon out of control occurs testing in field experiment, operating personnel can start water curtain system 8 immediately, spray water under high pressure,
For suppress liquefied natural gas to external diffusion and burning, ensure the safety of whole experiment porch.It is distributed in the various of field experiment
Sensor and thermal camera, various experimental datas can be collected, realized to liquefied natural gas diffusion temperature field, methane concentration
Distribution, the measurement of liquefied natural gas ignition temperature field, thermal radiation field, have extensively studied natural gas vaporization diffusion property and combustion
Characteristic is burnt, the research that fire suppression technology is spread for liquefied natural gas yard security arrangement, liquefied natural gas provides data support.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the essential scope of the present invention, it should also belong to the present invention's
Protection domain.
Claims (6)
1. a kind of On Lng Leakage spreads fire integration experimental platform, it is characterised in that：Including field experiment and field experiment
Peripheral combustible gas alarming instrument, the field experiment include liquefied natural gas storing/conveying system, collecting tank experimental system, measurement control
System and security protection system processed, the liquefied natural gas storing/conveying system including liquefied natural gas unload area, liquefaction day
Right gas storage tank and liquefied natural gas delivery pipeline system, the LNG tank are provided with supercharging gasifier；The collection
Liquid pool experimental system includes liquid pool, liquefied natural gas groove and igniter, the liquid pool include small-sized liquid pool, medium-sized liquid pool,
Large-scale liquid pool, the medium-sized liquid pool and large-scale liquid pool are respectively arranged with pollution discharge pond, and large-scale liquid pool is also connected with the liquefied natural gas
Groove；The Measurement and Control System includes control unit, measuring unit, thermal camera and valve, the measuring unit, infrared
Video camera, valve and the igniter are all connected in described control unit, and the measuring unit includes liquid pool inner sensor group
With liquid pool outer sensor group；The security protection system includes liquefied natural gas memory block collecting tank, liquefied natural gas memory block
Combustible gas alarming instrument, fire wall and water curtain system；The liquefied natural gas unload area, LNG tank, liquefaction day
Right gas memory block collecting tank, liquefied natural gas memory block combustible gas alarming instrument and control unit are located at fire wall side, institute
State collecting tank experimental system, measuring unit, thermal camera and water curtain system and be located at fire wall opposite side；The liquefaction is natural
Gas storage tank connects collecting tank experimental system by liquefied natural gas delivery pipeline system through fire wall, and the water curtain system is surrounded
In the collecting tank experimental system and the surrounding of the measuring unit, water curtain system is connected in described control unit；
The liquid pool inner sensor group includes several sensor combinations and liquid level sensor, and liquid pool inner sensor group is arranged on
In liquid pool；The liquid pool outer sensor group is arranged on outside liquid pool, and liquid pool outer sensor group includes several sensor combinations, described
It is upward that several sensor combinations are radially evenly distributed in the outer leeward of liquid pool.
A kind of 2. On Lng Leakage diffusion fire integration experimental platform according to claim 1, it is characterised in that：
Field experiment periphery combustible gas alarming instrument has four, and field experiment periphery combustible gas alarming instrument is located at the reality respectively
Test four angles of field.
A kind of 3. On Lng Leakage diffusion fire integration experimental platform according to claim 1, it is characterised in that：
The liquefied natural gas delivery pipeline system includes insulated piping and several blind plates, and the blind plate is arranged on insulated piping.
A kind of 4. On Lng Leakage diffusion fire integration experimental platform according to claim 1, it is characterised in that：
The sensor combinations are to be connected on one by a temperature sensor, a thermal radiation sensor, a sensing methane concentration device
Formed on individual support.
A kind of 5. On Lng Leakage diffusion fire integration experimental platform according to claim 1, it is characterised in that：
The water curtain system includes spray water with high pressure pipeline and several shower nozzles, and the shower nozzle is arranged on and sprayed water with high pressure on pipeline.
A kind of 6. On Lng Leakage diffusion fire integration experimental platform according to claim 1, it is characterised in that：
Removable baffle plate is provided between the large-scale liquid pool and the liquefied natural gas groove.
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| CN201510121141.3A CN104792661B (en) | 2015-03-19 | 2015-03-19 | A kind of On Lng Leakage spreads fire integration experimental platform |
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| CN104792661B true CN104792661B (en) | 2018-03-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764406B (en) * | 2016-12-14 | 2019-06-14 | 西南石油大学 | A kind of LNG leakage emergency collection system |
| CN109632880B (en) * | 2018-12-07 | 2021-06-01 | 中国石油大学(华东) | Test system for underwater gas leakage diffusion and combustion |
| CN111780928A (en) * | 2020-06-12 | 2020-10-16 | 中国船舶重工集团公司第七二四研究所 | Distributed grid liquid leakage detection system |
| CN112557441B (en) * | 2020-11-30 | 2022-04-15 | 西南石油大学 | Experimental platform and method for influence of gas pipeline fire injection on safety of adjacent liquid hydrocarbon pipes |
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| KR20050015929A (en) * | 2003-08-16 | 2005-02-21 | 공명자 | Device for recovering liquefied petroleum gas and liquefied natural gas from a fuel tank of a waste vehicle completely, and purifying and recharging recycled fuel |
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| CN104297006B (en) * | 2014-09-25 | 2017-05-17 | 中国石油化工股份有限公司青岛安全工程研究院 | LNG leakage water curtain restraint experiment device |
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| KR20050015929A (en) * | 2003-08-16 | 2005-02-21 | 공명자 | Device for recovering liquefied petroleum gas and liquefied natural gas from a fuel tank of a waste vehicle completely, and purifying and recharging recycled fuel |
| WO2008031147A1 (en) * | 2006-09-11 | 2008-03-20 | Woodside Energy Limited | Power generation system for a marine vessel |
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Effective date of registration: 20180211 Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Applicant after: SINOPEC Research Institute OF SAFETY ENGINEERING Applicant after: CHINA PETROLEUM & CHEMICAL Corp. Address before: 100728 Chaoyangmen street, Beijing, No. 22, No. Applicant before: CHINA PETROLEUM & CHEMICAL Corp. Applicant before: SINOPEC Research Institute OF SAFETY ENGINEERING |
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Effective date of registration: 20221130 Address after: No. 22, Chaoyangmen street, Chaoyang District, Beijing 100020 Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec Safety Engineering Research Institute Co.,Ltd. Address before: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Patentee before: SINOPEC Research Institute OF SAFETY ENGINEERING Patentee before: CHINA PETROLEUM & CHEMICAL Corp. |
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