CN206019982U - Gas burst pressure is produced and loading experimental apparatus - Google Patents
Gas burst pressure is produced and loading experimental apparatus Download PDFInfo
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- CN206019982U CN206019982U CN201621007279.7U CN201621007279U CN206019982U CN 206019982 U CN206019982 U CN 206019982U CN 201621007279 U CN201621007279 U CN 201621007279U CN 206019982 U CN206019982 U CN 206019982U
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Abstract
The utility model discloses a kind of gas burst pressure is produced and loading experimental apparatus, including igniter, blast air chamber, pressure test device, locking device, pressure vacuum gauge and N number of base, N >=2, N number of base are uniformly distributed and are fixed on blast air chamber bottom；Pressure test device is arranged on blast plenum roof, and igniter is separately positioned on the two ends of blast air chamber with locking device, and pressure vacuum gauge is arranged on the top surface of blast air chamber.The utility model is used for simulating the generation of restricted clearance internal gas blast pressure and its loading effect to building element, can pass through to adjust primary condition（The species and concentration of fuel gas）Produce the gas explosion load of multi-form.
Description
Technical field
The utility model belongs to safety engineering test field, and in particular to a kind of gas burst pressure is produced and loading experiment
Device.
Background technology
The blast of interior of building combustible gas mixture has become the multiple of current industrial production and domestic life field
One of accident, most occur with gas explosion form, causes serious destruction to building structure, indoor equipment, facility.Gas is quick-fried
The damage effect that fried accident is produced is mainly with house interior gas explosion pressure and its relevant to the effect of structure, and room pressure is received
Affect to gas type, concentration, shot room space geometry characteristic, shape, the internal environment and indoor gas factors such as release,
Compared with chemical explosion, nuclear explosion load, indoor gas detonation pressure has that rise time length, peak value is more, pressure pattern is various
The features such as, will also affect the dynamic response characteristics of structure.Structure under the conditions of carrying out the development of indoor gas detonation pressure and being somebody's turn to do
The research of damage effect, the protection and Structural Damage Assessment to gas burst accident are significant, and indoor gas blast
Pressure generation and the experimental rig loaded by structure are then necessary research meanses.
The existing experimental rig for carrying out explosively loading to building structure, main analog chemical explosion or nuclear explosive shock wave,
Such as atomic blast simulator, shock tube etc., this load form are inherently distinguishing with indoor gas detonation pressure；And
Gas burst test in related restricted clearance, it is preferred that emphasis is the propagation of learning gas explosive flame speed, the development of pressure, space
Venting of dust explosion and gas concentration, the impact of species etc., mainly in the single shot rooms such as pipeline, spherical or Cylindrical Explosion Vessel or even
Carry out in logical device, experiment condition differs larger with actual square building indoor gas explosive event, and does not consider to building
Build the loading of component.
Content of the invention
The utility model purpose is to provide a kind of gas burst pressure and produces and loading experimental apparatus, for simulating limited sky
Between internal gas blast pressure produce and its loading effect to building element.
The technical solution for realizing the utility model purpose is：A kind of gas burst pressure is produced and loading experiment dress
Put, it is characterised in that：Including igniter, blast air chamber, pressure test device, locking device, pressure vacuum gauge and N number of bottom
Seat, N >=2, N number of base are uniformly distributed and are fixed on blast air chamber bottom；Pressure test device is arranged on blast plenum roof, igniting
Device is separately positioned on the two ends of blast air chamber with locking device, and pressure vacuum gauge is arranged on the top surface of blast air chamber.
More than height, two end faces of length direction, one end are provided with through hole to the length of the blast air chamber, and the other end is for no reason
Lid, end-cover-free end are provided with stand under load component to be measured, and fuel gas is filled in the inner chamber of blast air chamber；Open on the side wall of blast air chamber
There are an aspirating hole and several air admission holes, aspirating hole to be located at the center of the side wall, several air admission holes are symmetrical successively
In the both sides of aspirating hole, air admission hole is connected with gas cylinder by gas pipeline；Aspirating hole is by gas pipeline and anti-explosion vacuum pump phase
Even；The top surface of blast air chamber is provided with a pressure vacuum gauge installing hole and several sensor mounting hole, vacuum pressure along straight line
Table is arranged in pressure vacuum gauge installing hole.
The center of circle of the aspirating hole and several air admission holes is located at same straight line.
The side wall two end faces not for top surface, bottom surface and length direction.
The blast air chamber is cuboid.
On above-mentioned blast gas chamber outer wall after perforate build-up member, it is intended to filling with sealant and is sealed.
The igniter includes the end of ignition controller, ring flange and igniting resistance silk, ring flange and blast air chamber
Through hole is connected, and igniting resistance silk one end is connected with ignition controller, and the other end stretches into the inner chamber of blast air chamber from ring flange center
In, ignition controller heats igniting resistance silk by electric current so as to reach firing temperature, the fuel gas ignited in inner chamber.
The pressure test device includes data acquisition unit and several pressure sensors, several pressure sensor difference
It is arranged in the sensor mounting hole, the pedestal of the pressure sensor is concordant with the inwall of blast air chamber, several pressure
Sensor is connected with data acquisition unit respectively, and data acquisition unit shows and record the change value of pressure that collects.
The locking device include press box and sealing bed course, press box be arranged on blast air chamber uncovered end, press box side with
Blast air chamber rotates connection, seals the junction that bed course is arranged on stand under load component to be measured and blast air chamber, and press box pushes down to be measured receiving
After carrying component, will be tight to stand under load component to be measured and explosive gas chamber pressure by bolt, realize the sealing of blast air chamber.
Compared with prior art, its remarkable advantage is the utility model：
（1）Can pass through to adjust primary condition（The species and concentration of fuel gas）Produce the gas explosion lotus of multi-form
Carry.
（2）Blast air chamber is cuboid, and the pressure that can more really simulate gas explosion inside square space is special
Levy.
（3）Can be used for building element（That is stand under load component）Carry out explosively loading.
Description of the drawings
Fig. 1 is the overall structure diagram of the generation of the utility model gas burst pressure and loading experimental apparatus.
Fig. 2 is the side view of the generation of the utility model gas burst pressure and loading experimental apparatus.
Fig. 3 is pressure history figure when the utility model embodiment 1 is tested.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail.
In conjunction with Fig. 1 and Fig. 2, a kind of gas burst pressure is produced and loading experimental apparatus, including igniter, blast air chamber
14th, pressure test device, locking device, pressure vacuum gauge 7 and N number of base 6, N >=2, N number of base 6 be uniformly distributed be fixed on quick-fried
14 bottom of fried air chamber, to exploding, air chamber 14 plays a supportive role.Pressure test device is arranged at the top of blast air chamber 14, igniter
The two ends of blast air chamber 14 are separately positioned on locking device, and pressure vacuum gauge 7 is arranged on the top surface of blast air chamber 14.
The blast air chamber 14 is made up of high strength steel, and more than height, two end faces of length direction, one end sets its length
There are through hole, other end end-cover-free, end-cover-free end to be provided with stand under load component 11 to be measured, fuel gas is filled with the inner chamber of blast air chamber 14
In, mix with air.An aspirating hole 5 and several air admission holes 4 are provided with the side wall of blast air chamber 14, and aspirating hole 5 is located at institute
The center of side wall is stated, several air admission holes 4 are symmetrically distributed in the both sides of aspirating hole 5, the aspirating hole 5 and several air inlets successively
The center of circle in hole 4 is located at same straight line, and to ensure that fuel gas is well mixed, air admission hole 4 is connected with gas cylinder by gas pipeline；
Aspirating hole 5 is connected with anti-explosion vacuum pump by gas pipeline.The side wall two ends not for top surface, bottom surface and length direction
Face.The top surface of blast air chamber 14 is provided with one along straight line, pressure vacuum gauge installing hole and several sensor mounting hole, vacuum pressure
Power table 7 is arranged in pressure vacuum gauge installing hole, is closed the seal for ensureing blast air chamber 14 using fluid sealant, is shown in real time
Inside cavity pressure condition.
The blast air chamber 14 is cuboid.
The igniter includes ignition controller 1, ring flange 2 and igniting resistance silk 3, ring flange 2 and blast air chamber 14
End through hole by flange be connected, 3 one end of igniting resistance silk is connected with ignition controller 1, and the other end is stretched from 2 center of ring flange
Enter to explode air chamber 14 inner chamber in, ignition controller 1 heats igniting resistance silk 3 by electric current so as to reaches firing temperature, ignites
Fuel gas in inner chamber.
The pressure test device includes data acquisition unit 15 and several pressure sensors 8, several pressure sensors 8
It is separately positioned in the sensor mounting hole, for gathering the change value of pressure of blast 14 inner chamber of air chamber, the pressure sensing
The pedestal of device 8 is concordant with the inwall of blast air chamber 14, and with sealant sealing ensureing seal.Several pressure sensors 8
It is connected with data acquisition unit 15 respectively, data acquisition unit 15 shows and record the change value of pressure that collects.
In conjunction with Fig. 2, the locking device includes that press box 12 and sealing bed course, press box 12 are arranged on the uncovered of blast air chamber 14
End, 12 side of press box are rotated by hinge with blast air chamber 14 and are connected, and sealing bed course is arranged on stand under load component to be measured 11 with blast
The junction of air chamber 14, after press box 12 pushes down stand under load component 11 to be measured, by bolt by stand under load component to be measured 11 and blast air chamber
14 compress, and realize the sealing of blast air chamber 14.
Embodiment 1
In conjunction with Fig. 1, a kind of gas burst pressure is produced and loading experimental apparatus, including igniter, blast air chamber 14, pressure
Force test device, locking device, 6,3 bases 6 of pressure vacuum gauge 7 and 3 bases are uniformly distributed and are welded on 14 bottom of blast air chamber
Portion, plays supporting ＆ stablizing effect to the air chamber 14 that explodes.Pressure test device is arranged at the top of blast air chamber 14, igniter and closing
Device is separately positioned on the two ends of blast air chamber 14, and pressure vacuum gauge 7 is arranged on the top surface of blast air chamber 14.
The blast air chamber 14 is made up of high strength steel, is cuboid, two end faces of length direction, and one end is provided with logical
Hole, other end end-cover-free, end-cover-free end are provided with stand under load component 11 to be measured, fuel gas（Ethene, concentration 8%）It is filled in explosive gas
In the inner chamber of room 14.An aspirating hole 5 and 6 air admission holes 4 are provided with the side wall of blast air chamber 14, and aspirating hole 5 is located at the side
The center of wall, 6 air admission holes 4 are symmetrically distributed in the center of circle of the both sides of aspirating hole 5, the aspirating hole 5 and 6 air admission holes 4 successively
Same straight line is located at, to ensure that fuel gas is well mixed, air admission hole 4 is connected with gas cylinder by gas pipeline, combustion gas is from defeated
Feed channel enters blast air chamber 14, mixes with air therein；Aspirating hole 5 is connected with anti-explosion vacuum pump by gas pipeline.Institute
Two end faces for stating side wall not for top surface, bottom surface and length direction.The top surface of blast air chamber 14 is provided with one along straight line, vacuum pressure
Power table installing hole and 4 sensor mounting hole, pressure vacuum gauge 7 are arranged in pressure vacuum gauge installing hole, using sealant sealing
Close to ensure the seal of blast air chamber 14, show inside cavity pressure condition in real time.
The igniter includes ignition controller 1, ring flange 2 and igniting resistance silk 3, ring flange 2 and blast air chamber 14
End through hole by flange be connected, 3 one end of igniting resistance silk is connected with ignition controller 1, and the other end is stretched from 2 center of ring flange
Enter to explode air chamber 14 inner chamber in, ignition controller 1 heats igniting resistance silk 3 by electric current so as to reaches firing temperature, ignites
Fuel gas in inner chamber.
The pressure test device includes that 8,4 pressure sensors 8 of data acquisition unit 15 and 4 pressure sensors are set respectively
Put in the sensor mounting hole, for gathering the change value of pressure of blast 14 inner chamber of air chamber, the base of the pressure sensor 8
Seat is concordant with the inwall of the air chamber 14 that explodes, and with sealant sealing ensureing seal.Several pressure sensors 8 respectively with number
Connect according to collector 15, data acquisition unit 15 shows and record the change value of pressure that collects.
In conjunction with Fig. 2, the locking device includes press box 12 and sealing bed course, and press box 12 is rectangle, is arranged on explosive gas
The uncovered end of room 14,12 side of press box are rotated by hinge with blast air chamber 14 and are connected, and sealing bed course is arranged on stand under load structure to be measured
The junction of part 11 and blast air chamber 14, after press box 12 pushes down stand under load component 11 to be measured, by bolt by stand under load component 11 to be measured
Compress with blast air chamber 14, realize the sealing of blast air chamber 14.
Pressure is produced and loading experiment step：
Step 1, by pressure sensor 8 and pressure vacuum gauge 7 installed in blast 14 top surface of air chamber, and check its air-tightness.
Step 2, the uncovered end that sealing bed course 13, stand under load component 11 to be measured, press box 12 are sequentially placed into blast air chamber 14, and
Blind bolt is tightened, and checks air-tightness.
Step 3, unlatching anti-explosion vacuum pump are evacuated, and are controlled internal negative pressure numerical value by pressure vacuum gauge 7, are reached target
Pressure stops pumping, opens intake valve by 4 uniform air inlet of air admission hole, reaches aimed concn and stops air inlet.
Step 4, closing 7 valve of pressure vacuum gauge, disconnect intake interface, connect igniter, and personnel withdraw.
Step 5, igniting, ignition controller 1 heat igniting resistance silk 3 by electric current so as to reach firing temperature, ignite interior
Fuel gas in chamber, carries out explosively loading to stand under load component to be measured 11.
Step 6, the change value of pressure of collection blast 14 inner chamber of air chamber of pressure sensor 8, data acquisition unit 15 show and remember
The change value of pressure that record is collected, as shown in Figure 3.While the destruction situation of Real Time Observation stand under load component 11 to be measured.
In sum, the utility model can pass through to adjust primary condition（The species and concentration of fuel gas）Produce different
The gas explosion load of form, blast air chamber are cuboid, can more really simulate gas explosion inside square space
Pressure characteristic, it is possible to for building element（That is stand under load component）Carry out explosively loading.
Claims (9)
1. a kind of gas burst pressure is produced and loading experimental apparatus, it is characterised in that：Including igniter, blast air chamber
（14）, pressure test device, locking device, pressure vacuum gauge（7）With N number of base（6）, N >=2, N number of base（6）It is uniformly distributed
It is fixed on blast air chamber（14）Bottom；Pressure test device is arranged on blast air chamber（14）Top, igniter and locking device
It is separately positioned on blast air chamber（14）Two ends, pressure vacuum gauge（7）It is arranged on blast air chamber（14）Top surface.
2. gas burst pressure according to claim 1 is produced and loading experimental apparatus, it is characterised in that：The explosive gas
Room（14）Length more than height, two end faces of length direction, one end are provided with through hole, and other end end-cover-free, end-cover-free end set
There is stand under load component to be measured（11）, fuel gas is filled in blast air chamber（14）Inner chamber in；Blast air chamber（14）Side wall on open
There is an aspirating hole（5）With several air admission holes（4）, aspirating hole（5）It is located at the center of the side wall, several air admission holes（4）
Aspirating hole is symmetrically distributed in successively（5）Both sides, air admission hole（4）It is connected with gas cylinder by gas pipeline；Aspirating hole（5）By defeated
Feed channel is connected with anti-explosion vacuum pump；Blast air chamber（14）Top surface be provided with a pressure vacuum gauge installing hole and some along straight line
Individual sensor mounting hole, pressure vacuum gauge（7）It is arranged in pressure vacuum gauge installing hole.
3. gas burst pressure according to claim 2 is produced and loading experimental apparatus, it is characterised in that：The aspirating hole
（5）With several air admission holes（4）The center of circle be located at same straight line.
4. gas burst pressure according to claim 2 is produced and loading experimental apparatus, it is characterised in that：The side wall is not
Two end faces for top surface, bottom surface and length direction.
5. gas burst pressure according to claim 2 is produced and loading experimental apparatus, it is characterised in that：The explosive gas
Room（14）For cuboid.
6. gas burst pressure according to claim 2 is produced and loading experimental apparatus, it is characterised in that：Above-mentioned explosive gas
Room（14）On outer wall after perforate build-up member, it is intended to filling with sealant and is sealed.
7. gas burst pressure according to claim 1 is produced and loading experimental apparatus, it is characterised in that：The igniting dress
Put including ignition controller（1）, ring flange（2）With igniting resistance silk（3）, ring flange（2）With blast air chamber（14）End lead to
Hole is connected, igniting resistance silk（3）One end and ignition controller（1）Connection, the other end is from ring flange（2）Stretch into blast air chamber in center
（14）Inner chamber in, ignition controller（1）Igniting resistance silk is heated by electric current（3）So as to firing temperature is reached, ignite inner chamber
In fuel gas.
8. gas burst pressure according to claim 1 is produced and loading experimental apparatus, it is characterised in that：The pressure is surveyed
Trial assembly is put including data acquisition unit（15）With several pressure sensors（8）, several pressure sensors（8）It is separately positioned on institute
State in sensor mounting hole, the pressure sensor（8）Pedestal with blast air chamber（14）Inwall concordant, several pressure are passed
Sensor（8）Respectively with data acquisition unit（15）Connection, data acquisition unit（15）Show and record the change value of pressure for collecting.
9. gas burst pressure according to claim 1 is produced and loading experimental apparatus, it is characterised in that：The closing dress
Put including press box（12）With sealing bed course, press box（12）It is arranged on blast air chamber（14）Uncovered end, press box（12）Side with quick-fried
Fried air chamber（14）Connection is rotated, sealing bed course is arranged on stand under load component to be measured（11）With blast air chamber（14）Junction, press box
（12）Push down stand under load component to be measured（11）Afterwards, by bolt by stand under load component to be measured（11）With blast air chamber（14）Compress, realize
Blast air chamber（14）Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621007279.7U CN206019982U (en) | 2016-08-29 | 2016-08-29 | Gas burst pressure is produced and loading experimental apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621007279.7U CN206019982U (en) | 2016-08-29 | 2016-08-29 | Gas burst pressure is produced and loading experimental apparatus |
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| CN206019982U true CN206019982U (en) | 2017-03-15 |
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ID=58255077
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621007279.7U Active CN206019982U (en) | 2016-08-29 | 2016-08-29 | Gas burst pressure is produced and loading experimental apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226021A (en) * | 2016-08-29 | 2016-12-14 | 中国人民解放军理工大学 | Gas burst pressure produces and loading experimental apparatus |
| CN109212154A (en) * | 2018-07-03 | 2019-01-15 | 中国人民解放军陆军工程大学 | Gas burst Thermal-mechanical Coupling damage effect experimental provision |
| CN111257022A (en) * | 2020-01-16 | 2020-06-09 | 中国人民解放军陆军工程大学 | Gas explosion simulation test device and system in underground comprehensive pipe gallery space |
-
2016
- 2016-08-29 CN CN201621007279.7U patent/CN206019982U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226021A (en) * | 2016-08-29 | 2016-12-14 | 中国人民解放军理工大学 | Gas burst pressure produces and loading experimental apparatus |
| CN109212154A (en) * | 2018-07-03 | 2019-01-15 | 中国人民解放军陆军工程大学 | Gas burst Thermal-mechanical Coupling damage effect experimental provision |
| CN109212154B (en) * | 2018-07-03 | 2023-11-10 | 中国人民解放军陆军工程大学 | Gas explosion thermodynamic coupling destructive effect experimental device |
| CN111257022A (en) * | 2020-01-16 | 2020-06-09 | 中国人民解放军陆军工程大学 | Gas explosion simulation test device and system in underground comprehensive pipe gallery space |
| CN111257022B (en) * | 2020-01-16 | 2022-05-10 | 中国人民解放军陆军工程大学 | Gas explosion simulation test device and system in underground comprehensive pipe gallery space |
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