CN100575951C - Multifunctional gas explosion experiment system - Google Patents
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- CN100575951C CN100575951C CN200610040578A CN200610040578A CN100575951C CN 100575951 C CN100575951 C CN 100575951C CN 200610040578 A CN200610040578 A CN 200610040578A CN 200610040578 A CN200610040578 A CN 200610040578A CN 100575951 C CN100575951 C CN 100575951C
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Abstract
The present invention relates to a kind of multifunctional gas explosion experiment system, more specifically to a kind of multifunction container pipeline gas explosion test system.System comprises experimental provision, air distributing device, portfire, proving installation, data acquisition and processing section; Described experimental provision comprises two spherical containers and connecting tube, two spherical containers are connected to form the container conduit system by pipeline, package unit is connected with bolt by flange, and container and pipeline are provided with sensor mounting hole, gas inlet-outlet, vacuum-pressure gauge connection, venting of dust explosion mouth and fire hole; Air distributing device comprises gas bomb, distributing instrument, distribution jar, transfer pipeline; Portfire comprises sparker, spark plug, lead; Proving installation comprises that vacuum-tensimeter, pressure unit, flame sensor, sensor connect lead; Data acquisition and processing section comprise multi-channel data acquisition instrument and data acquisition software.
Description
Technical field
The present invention relates to a kind of multifunctional gas explosion experiment system, more specifically to a kind of multifunction container pipeline gas explosion test system.
Background technology
In chemical industry and the petrochemical production process, inflammable gas adopts closed container or pipeline to store usually or carries.Because the effect of suffering restraints, the gas burst meeting produces higher pressure and pressure climbing speed, to such an extent as to cause casualties and property loss.And in container and apparatus system that pipeline is connected, because pressure accumulated effect and subsequent explosion, the consequence of container conduit system gas explosion accident is more serious, usually can cause catastrophic consequence.Obtain the gas burst characterisitic parameter, prediction gas burst intensity is for datonation-inhibition, the flame proof of container conduit system with put out quick-fried Safety Design and have great importance.At present, single container or pipeline gas explosion test technology comparative maturity, but can not be used for the explosion test of container conduit system gas; And existing container conduit system only does the as a whole apparatus system gas burst experiment that is used for usually, but can not be used for single container or pipeline gas explosion test.Multifunctional gas explosion experiment system adapts to a kind of experimental system that can be used to carry out all gases explosion test that this requirement grows up just.
At present, the device that is used for the gas burst experiment both at home and abroad is different because of the laboratory, function ratio is more single, cost is all than higher, be merely able to carry out the gas burst experiment or the venting of dust explosion experiment of single container or pipeline under a lot of situations, be merely able to carry out gas burst experiment in the pipeline as Beijing Institute of Technology's explosion disaster prevention and the pipeline experimental provision of control National Key Laboratory and the methane gas explosion test system of China Mining University.20L and 1m
3Spherical explosive release is merely able to carry out gas burst experiment in the container.Explosion test relates to lessly for the container conduit system gas, and the Bartknecht of Germany sets forth used experimental provision in its monograph (Explosion course prevention protection) be that volume by pipeline connection is respectively 1m
3And 5m
3The column connection container, the connecting tube diameter is respectively 100mm, 200mm and 400mm, duct length is 10m.The experimental provision system does as a whole, and is relatively heavier, and device moves and operate very inconvenient, and cost is also than higher simultaneously.The experimental provision of employing is to be 8.3mm by diameter in the article " connection container gas burst propagations " (Transmission of gas explosion between linkedvessels) that people such as Domnina delivered in the 38th the 2nd phase of volume of international periodical fire safety evaluating journal (Fire Safety Journal) of publishing in 2003, and length is that the volume of the pipeline connection of 4.35cm is respectively 1180cm
3And 170cm
3Small-sized column connection container.This experimental provision miniaturization, because the wall effect of container or pipeline, experimental result and actual conditions difference are bigger.Domestic explosion test relates to lessly for the container conduit system gas, does not also have pertinent literature report at present.
Summary of the invention
Purpose of the present invention is intended to overcome the problem of above-mentioned existence, and a kind of multifunctional gas explosion experiment system is provided, and this apparatus system is easy and simple to handle, and is powerful, low cost of manufacture.
Technical scheme of the present invention is as follows:
A kind of multifunctional gas explosion experiment system, it is characterized in that comprising experimental provision, air distributing device, portfire, proving installation, data acquisition and processing section, described experimental provision comprises two spherical containers and connecting tube, and two spherical containers are connected to form the container conduit system by pipeline.Package unit is connected with bolt by flange, and container and pipeline are provided with pressure transducer mounting hole, gas inlet-outlet, vacuum-pressure gauge connection, venting of dust explosion mouth and fire hole; Air distributing device comprises gas bomb, distributing instrument, distribution jar, transfer pipeline.Experimental provision and distribution jar, distribution jar and distributing instrument, distributing instrument is connected by transfer pipeline respectively with gas bomb; Portfire comprises sparker, spark plug, lead, adopts sparker and spark plug simulation industrial gasses blast weak ignition situation, and ignition energy can be regulated and control; Proving installation comprises that vacuum-tensimeter, pressure unit, flame sensor, sensor connect lead.Data acquisition and processing section comprise multi-channel data acquisition instrument and data acquisition software, wherein part of data acquisition adopts data collecting instrument synchronous acquisition data, and data processing and analysis part adopt the universal signal analysis software that data and signal are analyzed and handled.
Two spherical container bottoms are equipped with and are supported shell ring, reinforcement and base plate in the described experimental provision, and channel-section steel and base plate are equipped with in the pipeline bottom, and spherical container is provided with hanger, and container and pipeline base plate are fixed on ground by foot bolt.
The spherical container diameter of described experimental provision is 300mm～1500mm, and the connecting tube diameter is 40mm～200mm, and length is 1m～15m.
Spherical container or pipeline are realized the venting of dust explosion experiment by flange clamping rupture disk in the described experimental provision, and blind flange adopts open-celled structure, realize container or pipeline gas explosion test by blind plate closed container or pipeline.
Container and pipeline are detachable in the described experimental provision, and pipe section is made up of three segment pipes, and container and pipeline are connected to form the container conduit system, realize the explosion test of container conduit system gas by blind plate closed container or pipe flange; Realize the experiment of container conduit system gas venting of dust explosion by container pipe connecting flange installing rupture disk; Realize the flame proof experiment by installing partition apparatus between pipe flange; By gas burst situation in the pipeline under the sheet metal analog obstacle principle condition of the different perforated areas of clamping between pipe flange.
Standby instrument connection adopts plug and gasket seal in the described experimental provision.
Distributing instrument adopts SY9506 type distributing instrument in the described air distributing device, and distributing instrument disposes certain density inflammable gas and AIR MIXTURES, charges into the distribution jar, then experimental provision is vacuumized, and at last gas in the distribution jar is charged in the experimental provision.
Described portfire is provided with the spark plug of different length, realizes container inner wall millet cake fire and centerfire.
In the described proving installation, interior vacuum tightness of device and inflation back original pressure adopted vacuum-gauge measurement when experiment vacuumized, explosion pressure adopts CYG1401MF type pressure transmitter measurement, survey frequency is 100kHz, flare up fire adopts the flame sensor of photodiode type to measure, and the response time is 10
-8S.
Described part of data acquisition adopts JV5231 type multi-channel data acquisition instrument synchronous acquisition data, maximum sample rate is 20M, resolution is 12bit, and trueness error adopts SignalView universal signal analysis software that data and signal are analyzed and handled less than 1.0%.
The experimental implementation of experimental provision of the present invention: before the experiment, prepare certain density inflammable gas and air mixture, it is mixed by distributing instrument.During experiment, at first according to experimental provision structural representation assembling experimental provision and experimental apparatus, and device, air distributing device and the data collector of lighting a fire that be linked and packed, check the circuit of various parts, and guarantee to connect well the testing fixture impermeability.Then, be evacuated to negative pressure-0.006MPa, in device, charge into inflammable gas and air mixture.The debugging test macro makes each passage in running order, waiting signal.At last, the cleaning personnel are to safe distance, and igniting blasting gas by the pressure transmitter measurement explosion pressure, is measured flare up fire by flame sensor, and signal is passed to data collecting instrument, carries out collection, processing and the analysis of data.
The invention has the beneficial effects as follows:
Multifunctional gas explosion experiment system apparatus structure of the present invention is reasonable, powerful, and ignition operation is convenient, and the experimental data acquisition precision is higher, and data acquisition and analytic system are easy to use, and can guarantee measuring accuracy.The container conduit system adopts pipe flange to connect, mount and dismount very conveniently, can realize gas explosion test under container or pipeline gas explosion test, container or the experiment of pipeline gas venting of dust explosion, the explosion test of container conduit system gas, container conduit system gas venting of dust explosion and flame proof experiment and the barrier condition by different assembling mode modifier structures.Simultaneously, container can pass through portal frame, go-cart and chain block lifting and move, and experimental implementation is very convenient.Experimental provision experiment standard of the present invention, package unit is all made according to " Steel Pressure Vessels " and " safe technology of pressure vessel supervision rules ", and is safe, low cost of manufacture, price is far below domestic and international same device.
Description of drawings
Fig. 1 is the multifunctional gas explosion experiment system synoptic diagram.
Fig. 2 is the experimental provision structural representation of multifunctional gas explosion experiment system.
Fig. 3 is that the big spherical container pipe joint of multifunctional gas explosion experiment system is joined the blind plate structural representation.
Fig. 4 is that the pellet shapes container conduit interface of multifunctional gas explosion experiment system is joined the blind plate structural representation.
Fig. 5 is that the pipeline of multifunctional gas explosion experiment system is joined the blind plate structural representation.
Fig. 6 is the plug and the gasket construction synoptic diagram of the experimental provision of multifunctional gas explosion experiment system.
Fig. 7 is the shackle structure synoptic diagram of the experimental provision of multifunctional gas explosion experiment system.
Fig. 8 is the conduit bracket structural representation of multifunctional gas explosion experiment system.
Fig. 9 is that the big spherical container of multifunctional gas explosion experiment system supports the shell ring structural representation.
Figure 10 is the pellet shapes container support shell ring structural representation of multifunctional gas explosion experiment system.
Piece mark among Fig. 1～Figure 10: (1) base plate, (2) reinforcement, (3) support shell ring, (4) gas inlet-outlet, (5) big spherical container, (6) pressure unit interface, (7) lighter interface, (8) pipe connecting flange, (9) blind flange, (10) dentiform gasket, (11) double-screw bolt, (12) nut, (13) pressure-vacuum meter interface, (14) pressure unit interface, (15) big spherical container is taken over, (16) flange, (17) pressure unit interface, (18) pipeline, (19) flange, (20) dentiform gasket, (21) double-screw bolt, (22) nut, (23) pellet shapes container is taken over, (24) pressure-vacuum meter interface, (25) pipe connecting flange, (26) pellet shapes container, (27) hanger, (28) lighter interface, (29) pressure unit interface, (30) gas inlet-outlet, (31) support shell ring, (32) reinforcement, (33) base plate, (34) channel-section steel, (35) base plate, (36) pipeline, (37) pipeline, (38) flame sensor interface, (39) flame sensor interface, (40) ground plate, (41) nameplate and nameplate frame, (42) plug, (43) pad, (44) big spherical container blind flange, (45) pellet shapes vessel flange lid
Symbol among Fig. 1～Figure 10: (A) pressure unit, (B) pressure unit, (b) lighter, (c) rupture disk, (e) stop valve, (d1～d8) pressure unit, (f) rupture disk, (g) pressure-vacuum meter, (h) lighter, (flame sensor of i1～i8), (j1～j2) takes over mouthful, (k) pressure-vacuum meter, (m) stop valve
Embodiment
With reference to accompanying drawing 1～10, multifunctional gas explosion experiment system comprises experimental provision, air distributing device, portfire, proving installation, data acquisition and processing section.The experimental provision structure comprises big spherical container 5, pipeline 18, pipeline 37, pipeline 36 and pellet shapes container 26, is connected by flange between container and pipeline and the pipeline.On the flange 8 of big spherical container adapter 15 dentiform gasket 10, rupture disk f, dentiform gasket 10, blind flange with holes are installed, or dentiform gasket 10, blind flange 9 be installed, on the flange 25 of pellet shapes container adapter 23 dentiform gasket 10, rupture disk f, dentiform gasket 10, blind flange with holes are installed, or dentiform gasket 10, blind flange 9 are installed, the container pipe connecting flange is by double-screw bolt 11 and nut 12 sealings.Big spherical container 5 bottoms are provided with supports shell ring 3, reinforcement 2, base plate 1 and ground plate 40, and pellet shapes container 26 bottoms are provided with supports shell ring 31, reinforcement 32 and base plate 33, and pipeline 18, pipeline 37, pipeline 36 bottoms are provided with channel-section steel 34 and base plate 35.Big spherical container is provided with pressure unit interface 6 and 14, flame sensor interface 39, lighter interface 7, gas inlet-outlet 4, pressure-vacuum meter interface 13, nameplate and nameplate frame 41, hanger, the pellet shapes container is provided with pressure unit 29 and d8 installing port, flame sensor i8 installing port, lighter interface 28, gas inlet-outlet 30, pressure-vacuum meter interface 24, hanger 27.Pipeline 18, pipeline 37 and pipeline are provided with pressure unit d2～d7 installing port and flame sensor i2～i7 installing port.
Experimental provision comprises two spherical containers and connecting tube, and two spherical containers are connected to form the container conduit system by pipeline.The spherical container diameter is respectively 600mm and 350mm, and the connecting tube diameter is 89mm, and container and pipeline are detachable, and three segment pipe length are 2m.Spherical container is provided with hanger, and is furnished with chain block, portal frame and go-cart and lifts by crane and move.Two spherical container bottoms are equipped with and are supported shell ring, reinforcement and base plate, and the pipeline bottom is equipped with channel-section steel and baseplate container and pipeline base plate and is fixed on ground by foot bolt.Package unit is connected with bolt by flange, and container and pipeline are provided with sensor mounting hole, gas inlet-outlet, vacuum-pressure gauge connection, venting of dust explosion mouth and fire hole.Spherical container or pipeline are realized the venting of dust explosion experiment by flange clamping rupture disk, and blind flange adopts open-celled structure, realize container or pipeline gas explosion test by blind plate closed container or pipeline.Container and pipeline are connected to form the container conduit system, realize the explosion test of container conduit system gas by blind plate closed container or pipe flange; Realize the experiment of container conduit system gas venting of dust explosion by container pipe connecting flange installing rupture disk; Realize the flame proof experiment by installing partition apparatus between pipe flange; By gas burst situation in the pipeline under the sheet metal analog obstacle principle condition of the different perforated areas of clamping between pipe flange.In addition, standby instrument connection adopts plug and gasket seal in the experimental provision.
Air distributing device comprises gas bomb, distributing instrument, distribution jar, transfer pipeline.Experimental provision and distribution jar, distribution jar and distributing instrument, distributing instrument is connected by transfer pipeline respectively with gas bomb.Distributing instrument adopts SY9506 type distributing instrument, and distributing instrument disposes certain density inflammable gas and AIR MIXTURES, charges into the distribution jar, then experimental provision is vacuumized, and at last gas in the distribution jar is charged in the experimental provision.
Portfire comprises sparker, spark plug, lead, adopts sparker and spark plug simulation industrial gasses blast weak ignition situation, and ignition energy can be regulated and control.Portfire is provided with the spark plug of different length, realizes container inner wall millet cake fire and centerfire.
Proving installation comprises that vacuum-tensimeter, pressure unit, flame sensor, sensor connect lead.Interior vacuum tightness of device and inflation back original pressure adopted vacuum-gauge measurement when experiment vacuumized, explosion pressure adopts CYG1401MF type pressure transmitter measurement, survey frequency is 100kHz, and flare up fire adopts the flame sensor of photodiode type to measure, and the response time is 10
-8S.
Data acquisition and processing section comprise multi-channel data acquisition instrument and data acquisition software, wherein part of data acquisition adopts data collecting instrument synchronous acquisition data, and data processing and analysis part adopt the universal signal analysis software that data and signal are analyzed and handled.Part of data acquisition adopts JV5231 type multi-channel data acquisition instrument synchronous acquisition data, and maximum sample rate is 20M, and resolution is 12bit, and trueness error is less than 1.0%.Adopt SignalView universal signal analysis software that data and signal are analyzed and handled.
Experimental provision of the present invention can be finished following experiment by removing and installing: (1) container or pipeline gas explosion test.With reference to accompanying drawing 3, big spherical container takes over 15 by blind flange 44 sealings, on the big spherical container pipe connecting flange 8 dentiform gasket 10 is installed successively, and blind flange 9, and seal by double-screw bolt 11 and nut 12, container floor 1 are fixed on ground by foot bolt.Setting pressure transmitter A on instrument connection 6, setting pressure on instrument connection 13-vacuum meter g, mounting points firearm b on instrument connection 7 installs stop valve e on gas inlet-outlet 4, flame sensor i1 is installed, with plug 42 and pad 43 confining pressure transmitter d1 instrument connections on instrument connection 39.With reference to accompanying drawing 4, pellet shapes container experiment device installation method is identical therewith.With reference to accompanying drawing 5, the base plate of pipeline 36 35 is fixed on ground by foot bolt, at pipe ends mounting flange lid 45 and blind flange 44 respectively, and setting pressure transmitter d6 then, d7 and flame sensor i6, i7; (2) container or pipeline gas venting of dust explosion experiment.With reference to accompanying drawing 3, on the big spherical container pipe connecting flange 8 dentiform gasket 10 is installed successively, rupture disk c, dentiform gasket 10, the blind flange with holes that cooperates with rupture disk, and seal by double-screw bolt 11 and nut 12.With reference to accompanying drawing 4, pellet shapes container pipe connecting flange is identical therewith with the pipe flange installation method, and other accessory installation method is with (1); (3) container conduit system gas explosion test.With reference to accompanying drawing 2, assemble big spherical container in order by pipe flange and take over 15, pipeline 18, pipeline 37, pipeline 36, the pellet shapes container takes over 23, pipeline base plate 35 is fixed on ground, setting pressure transmitter d1～d8 and flame sensor i1～i8 on the pipeline instrument connection by foot bolt.Big spherical container 5 and pellet shapes container 26 installation methods are with (1); (4) container conduit system gas venting of dust explosion experiment.With reference to accompanying drawing 2, container and pipeline assemble method are with (3), and big spherical container 5 and pellet shapes container 26 installation methods are with (2); (5) container conduit system gas flame proof experiment.With reference to accompanying drawing 2, container and pipeline assemble method can be chosen in big spherical container and take over 15 with (3), pipeline 18, and pipeline 37, pipeline 36 is installed partition apparatus between the container adapter of pellet shapes container adapter 23 or the pipe flange.
Claims (5)
1, a kind of multifunctional gas explosion experiment system is characterized in that system comprises experimental provision, air distributing device, portfire, proving installation and data acquisition and processing section; Described experimental provision comprises two spherical containers and connecting tube, two spherical containers are connected to form the container conduit system by pipeline, package unit is connected with bolt by flange, and container and pipeline are provided with sensor mounting hole, gas inlet-outlet, vacuum-pressure gauge connection, venting of dust explosion mouth and fire hole; Air distributing device comprises gas bomb, distributing instrument, distribution jar, transfer pipeline, wherein experimental provision and distribution jar, and distribution jar and distributing instrument, distributing instrument is connected by transfer pipeline respectively with gas bomb; Portfire comprises sparker, spark plug, lead, adopts sparker and spark plug simulation industrial gasses blast weak ignition situation, and ignition energy can be regulated and control; Proving installation comprises that vacuum-tensimeter, pressure unit, flame sensor, sensor connect lead; Data acquisition and processing section comprise multi-channel data acquisition instrument and data acquisition software, wherein part of data acquisition adopts data collecting instrument synchronous acquisition data, and data processing and analysis part adopt the universal signal analysis software that data and signal are analyzed and handled;
Two spherical container bottoms are equipped with and are supported shell ring, reinforcement and base plate in the described experimental provision, and channel-section steel and base plate are equipped with in the pipeline bottom, and spherical container is provided with hanger, and container and pipeline base plate are fixed on ground by foot bolt; Standby instrument connection adopts plug and gasket seal in the described experimental provision;
Spherical container or pipeline are realized the venting of dust explosion experiment by flange clamping rupture disk in the described experimental provision, and blind flange adopts open-celled structure, realize container or pipeline gas explosion test by blind plate closed container or pipeline;
Container and pipeline are detachable in the described experimental provision, and pipe section is made up of three segment pipes, and container and pipeline are connected to form the container conduit system, realize the explosion test of container conduit system gas by blind plate closed container or pipe flange; Realize the experiment of container conduit system gas venting of dust explosion by container pipe connecting flange installing rupture disk; Realize the flame proof experiment by installing partition apparatus between pipe flange; By gas burst situation in the pipeline under the sheet metal analog obstacle principle condition of the different perforated areas of clamping between pipe flange;
Distributing instrument adopts SY9506 type distributing instrument in the described air distributing device, and distributing instrument disposes certain density inflammable gas and AIR MIXTURES, charges into the distribution jar, then experimental provision is vacuumized, and at last gas in the distribution jar is charged in the experimental provision.
2, multifunctional gas explosion experiment system according to claim 1, the spherical container diameter that it is characterized in that described experimental provision is 300mm～1500mm, and the connecting tube diameter is 40mm～200mm, and length is 1m～15m.
3, multifunctional gas explosion experiment system according to claim 1 is characterized in that described portfire is provided with the spark plug of different length, realizes container inner wall millet cake fire and centerfire.
4, multifunctional gas explosion experiment system according to claim 1, it is characterized in that in the described proving installation, interior vacuum tightness of device and inflation back original pressure adopted vacuum-gauge measurement when experiment vacuumized, explosion pressure adopts CYG1401MF type pressure transmitter measurement, survey frequency is 100kHz, flare up fire adopts the flame sensor of photodiode type to measure, and the response time is 10
-8S.
5, multifunctional gas explosion experiment system according to claim 1, it is characterized in that described part of data acquisition adopts JV5231 type multi-channel data acquisition instrument synchronous acquisition data, maximum sample rate is 20M, resolution is 12bit, trueness error adopts SignalView universal signal analysis software that data and signal are analyzed and handled less than 1.0%.
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| CN200610040578A CN100575951C (en) | 2006-05-26 | 2006-05-26 | Multifunctional gas explosion experiment system |
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| CN200610040578A CN100575951C (en) | 2006-05-26 | 2006-05-26 | Multifunctional gas explosion experiment system |
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| CN100575951C true CN100575951C (en) | 2009-12-30 |
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