CN204666546U - Inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition - Google Patents
Inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition Download PDFInfo
- Publication number
- CN204666546U CN204666546U CN201520393453.5U CN201520393453U CN204666546U CN 204666546 U CN204666546 U CN 204666546U CN 201520393453 U CN201520393453 U CN 201520393453U CN 204666546 U CN204666546 U CN 204666546U
- Authority
- CN
- China
- Prior art keywords
- restricted clearance
- tunnel body
- inflammable gas
- tunnel
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model discloses inflammable gas thermal explosion pests occurrence rule test macro under a kind of restricted clearance hot wall condition, comprise the restricted clearance tunnel for simulated explosion; For being atomized inflammable gas and being input to the gas vaporization circulating device in restricted clearance; For the gas concentration proving installation of the concentration and homogeneity of testing inflammable gas in restricted clearance; For the heating arrangement heated inflammable gas in restricted clearance; For following the tracks of the temperature dynamic proving installation of temperature changing process in restricted clearance; For recording the Pressure behaviour proving installation of pressure change in restricted clearance; For recording the camera head of inflammable gas in blast process Flame structure and change.The utility model achieves inflammable gas generation thermal explosion under this condition, be suitable for opening and the explosion environment of restricted clearance of remaining silent, the test of variable concentrations inflammable gas thermal explosion pests occurrence rule, also can be used for test flame, pressure propagation rule in blast evolution simultaneously.
Description
Technical field
The utility model belongs to gas burst field, is specifically related to inflammable gas thermal explosion pests occurrence rule test macro under a kind of restricted clearance hot wall condition.
Background technology
Inflammable gas (oil gas, methane, acetylene etc.) is convenient to people, the effective use energy brings great convenience, such as in order to improve the work efficiency of engine, needs the combustion characteristics studying inflammable gas.But bring great harm also to the life of people and property, in recent years, there occurs many severe and great casualty, the gas burst as relevant with petrochemical industry is often relevant with oil gas simultaneously.Just because of this, the correlative study of people to inflammable gas deepens continuously, and achieves a lot of achievements.In light-off course, be mainly to determine the explosion ratio limit, find the condition of impact igniting, determine time delay, the minimum ignition energy etc. of needs; In communication process, be mainly the positive feedback effect analyzing turbulent flow and detonation, the acceleration mechanism of turbulent flow, the propagation law etc. of explosion overpressure, flame velocity in different enclosure space.
In these researchs, it is an important research direction that inflammable gas sets off an explosion because being heated, and is also the research direction of a more complicated.Main cause relates to the light off characteristics of inflammable gas, and there occurs slow oxidative reaction as being heated, component may have occurred change before ignition, and this is relevant with chemical reaction mechanism; Relate to inflammable gas to be heated the flowing caused, this with thermal conduction study, mass transfer theory, fluid mechanics is relevant; Also relevant with the physical environment residing for inflammable gas in addition.Therefore, inflammable gas is heated to set off an explosion and studies often through experiment.
In the thermal explosion of inflammable gas, there is many type of heating, wherein, heating hot wall is a kind of common type of heating.In this type of heating, because energy input is relatively slow, cause reason that thermal explosion occurs and follow-up thermal explosion propagation law can be more complicated.Devise this experimental system for this reason, it can be explored and affect inflammable gas and be heated the key factor of thermal explosion occurs, for example in the maximum temperature on gas concentration, heat source speed, hot wall surface, space in numerous influence factor such as pressure, environment temperature, humidity, space scale, heating source area, which is major influence factors; It can explore the slow oxidation process of inflammable gas, and after blasting, the dynamic changing process of the flame structure of flammable gas explosion, temperature, pressure under opening and sealing condition.
Summary of the invention
The purpose of this utility model is to provide inflammable gas thermal explosion pests occurrence rule test macro under a kind of restricted clearance hot wall condition, its structure is simple, easy for installation, reliable working performance, and inflammable gas generation thermal explosion under restricted clearance hot wall condition can be realized, be suitable for opening and the explosion environment of restricted clearance of remaining silent, variable concentrations the test of inflammable gas thermal explosion pests occurrence rule, also can be used for test flame, pressure propagation rule in blast evolution simultaneously.
Inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition described in the utility model, comprising:
For the tunnel of the restricted clearance of simulated explosion;
For being atomized flammable liquid and being input to the gas vaporization circulating device in restricted clearance, this gas vaporization circulating device is communicated with tunnel by pipeline;
For the gas concentration proving installation of the size and homogeneity of testing the concentration of inflammable gas in restricted clearance, this gas concentration proving installation is communicated with tunnel by pipeline;
For the heating arrangement heated the inflammable gas in restricted clearance, the heat output terminal of this heating arrangement is positioned at tunnel;
For following the tracks of the temperature dynamic proving installation of the temperature changing process in restricted clearance, the test side of this temperature dynamic proving installation is positioned at tunnel;
For recording the Pressure behaviour proving installation of the pressure change in restricted clearance, the test side of this Pressure behaviour proving installation is positioned at tunnel inwall;
For recording the structure of inflammable gas at blast process Flame and the camera head of change.
Described tunnel comprises the tunnel body that at least can bear 2MPa pressure, described tunnel body is hollow and the cylindrical shape of left and right both ends open, flange seal is used respectively in the two ends, left and right of tunnel body, the first view window is provided with at the middle part of tunnel body, the second view window is provided with at the left part of tunnel body, thermal source pedestal for placed is provided with the first view window opposite position place in tunnel body, the top of described tunnel body is being respectively equipped with gas vent, this gas vent flange seal with the first view window and the second view window opposite position place.
Described heating arrangement comprises:
Heating hot wall, heating hot wall is arranged on thermal source pedestal for placed, and it comprises base, to be arranged on base and end face has the heat screen in hole, be arranged on the stone or metal plate for standing a stove on as a precaution against fire in heat screen, be arranged on the stove silk on stone or metal plate for standing a stove on as a precaution against fire, and to be arranged on heat screen and the copper coin be positioned at directly over stone or metal plate for standing a stove on as a precaution against fire;
Pressure regulator, this pressure regulator is arranged on tunnel, and this is external, and pressure regulator is electrically connected with described stove silk;
Power supply, this power supply is arranged on tunnel, and this is external, and power supply is electrically connected with described pressure regulator.
Described gas vaporization circulating device comprises:
First safety-valve, the second safety-valve, be arranged at the two ends, left and right of tunnel body respectively;
Atomizer, this atomizer is built with flammable liquid, and atomizer is arranged on tunnel, and this is external and be connected with the second safety-valve by pipeline;
Vacuum pump, this vacuum pump is arranged on tunnel, and this is external and be connected with atomizer and the first safety-valve respectively by pipeline.
Described temperature dynamic proving installation comprises:
First thermopair, the second thermopair, three thermocouple and the 4th thermopair, be arranged at intervals in tunnel body respectively, and the second thermopair is placed in the upper surface of heating hot wall, and three thermocouple is positioned at the top of heating hot wall;
Temperature acquisition card, this temperature acquisition card is arranged on tunnel, and this is external, and temperature acquisition card is electrically connected with the first thermopair, the second thermopair, three thermocouple and the 4th thermopair respectively, gathers the signal of each thermopair;
Host computer, this host computer is arranged on tunnel, and this is external, and host computer is electrically connected with temperature acquisition card, for receiving the data gathered with treatment temperature capture card.
Described Pressure behaviour proving installation comprises:
First pressure transducer, the second pressure transducer and the 3rd pressure transducer, be arranged in tunnel body respectively, and the first pressure transducer, the 3rd pressure transducer lay respectively at the two ends, left and right of tunnel body, the second pressure transducer is positioned at directly over heating hot wall;
Pressure acquisition instrument, this pressure acquisition instrument is arranged on tunnel, and this is external, and pressure acquisition instrument is electrically connected with the first pressure transducer, the second pressure transducer and the 3rd pressure transducer respectively, gathers the signal of each pressure transducer,
Host computer, this host computer is electrically connected with pressure acquisition instrument, for receiving the data gathered with processing pressure Acquisition Instrument.
Described gas concentration proving installation comprises:
Concentration analyzer, this concentration analyzer is arranged on tunnel, and this is external, and concentration analyzer is communicated with tunnel body by pipeline, forms a gas circulation, for testing size and the homogeneity of the concentration of inflammable gas in tunnel body.
Described camera head comprises:
Two high-speed cameras, described high-speed camera is arranged on tunnel, and this is external, and its camera lens aims at the first view window and second view window of shooting tunnel body respectively, for taking light-off course and the blast process of inflammable gas in tunnel body.
The utility model has the following advantages: the utility model can simulate in restricted clearance the inflammable gas thermal explosion process heated under hot wall condition, and can to the thermal explosion generating process of inflammable gas carry out " details " visual, seek the concentration limit that different inflammable gas thermal explosion occurs, minimum ignition temperature, slow oxidation process etc., research affects the principal element that inflammable gas thermal explosion occurs, restricted clearance can be described in blast generating process at the propagation law of opening or sealing condition downforce, thus the fundamental research of in-depth to inflammable gas thermal explosion, for security against fire provides technological guidance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation heating hot wall in the utility model;
Wherein: 1, tunnel body, 2, first thermopair, 3, first view window, 4, thermal source pedestal for placed, 5, support, 6, first safety-valve, 7, pressure regulator, 8, power supply, 9, host computer, 10, temperature acquisition card, 11, pressure acquisition instrument, 12, nut, 13, first pressure transducer, 14, second thermopair, 15, three thermocouple, 16, second pressure transducer, 17, gas vent, 18, 3rd pressure transducer, 19, second safety-valve, 20, second view window, 21, 4th thermopair, 22, atomizer, 23, vacuum pump, 24, heat screen, 25, stove silk, 26, stone or metal plate for standing a stove on as a precaution against fire, 27, base, 28, copper coin.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 to Figure 2, under restricted clearance hot wall condition described in the utility model, inflammable gas thermal explosion pests occurrence rule test macro comprises tunnel, gas vaporization circulating device, gas concentration proving installation, heating arrangement, temperature dynamic proving installation, Pressure behaviour proving installation and camera head.Wherein, tunnel is used for the restricted clearance of simulated explosion; Gas vaporization circulating device is communicated with tunnel by pipeline, for being atomized flammable liquid and being input in restricted clearance.Gas concentration proving installation is communicated with tunnel by pipeline, for testing size and the homogeneity of the concentration of inflammable gas in restricted clearance.The heat output terminal of heating arrangement is positioned at tunnel, for heating the inflammable gas in restricted clearance.The test side of temperature dynamic proving installation is positioned at tunnel, for following the tracks of the temperature changing process in restricted clearance.The test side of Pressure behaviour proving installation is positioned at tunnel inwall, for recording the pressure change in restricted clearance; Camera head is for recording the flame structure of inflammable gas in blast process and change.
As shown in Figure 1, described tunnel comprises tunnel body 1, and described tunnel body 1 is hollow and the cylindrical shape of left and right both ends open, and flange seal is used respectively in the two ends, left and right of tunnel body.The length of tunnel body 1 is 1.7m, and diameter is 0.4 meter, and can bear the pressure of more than 2MPa.The first view window 3 is provided with at the middle part of tunnel body 1, and the centre distance tunnel body 1 right-hand member 0.7m of the first view window 3.The second view window 20, second view window 20 centre distance tunnel body 1 left end 0.3m is provided with at the left part of tunnel body 1.The top of described tunnel body is being respectively equipped with gas vent 17 with the first view window 3 and the second view window 20 opposite position place, and this gas vent 17 flange or film seal, and can be used as gas discharge outlet in blast process or after blast.Thermal source pedestal for placed 4 is provided with the first view window 3 opposite position place in tunnel body 1, this thermal source pedestal for placed 4 is square spill, to be positioned at immediately below gas vent 17 on the right side and concordant with the lower edge of the first view window 3, an aperture is had in the middle of thermal source pedestal for placed 4, be convenient to cable pass, cable passes bottom tunnel body 1.The support 5 of two cast irons is provided with, for carrying out balanced support to tunnel body 1 bottom tunnel body 1; The top of tunnel body 1 is interval with at least 5 nuts 12, is convenient to the installation of thermopair, pipeline, and the rear portion of tunnel body 1 axis is interval with at least 6 nuts 12, is convenient to the installation of pressure transducer.
As shown in Figure 1, described heating arrangement comprises heating hot wall (i.e. heat output terminal), pressure regulator 7 and power supply 8, and power supply 8 adopts 220V AC power.As shown in Figure 2, heating hot wall comprises base 27, to be arranged on base 27 and end face has the heat screen 24 in hole, is arranged on the stone or metal plate for standing a stove on as a precaution against fire 26 in heat screen 24, be arranged on the stove silk 25 on stone or metal plate for standing a stove on as a precaution against fire 26, and be arranged on heat screen 24 and the copper coin 28 be positioned at directly over stone or metal plate for standing a stove on as a precaution against fire 26.Stove silk 25 is electrically connected with pressure regulator 7, and pressure regulator 7 is electrically connected with 220V AC power, and heating hot wall is arranged on thermal source pedestal for placed 4, and pressure regulator 7 and power supply 8 are arranged on outside tunnel body 1.Wherein, the specification of copper coin 28 is 17cm*17cm*2mm; Stone or metal plate for standing a stove on as a precaution against fire 26 is disk, its diameter 16cm, is highly 1.2cm, which is provided with the groove that the stove silk 25 that can be convenient to 3000w passes through; The power of stove silk 25 is 2500w or 3000w, can form the high temperature of nearly 1000 degrees Celsius, make inflammable gas, in restricted clearance, thermal explosion occur in 10 minutes on the surface of copper coin 28; The voltage adjustable extent 150v to 220v of pressure regulator 7.
Preferably, described gas vaporization circulating device comprises the first safety-valve 6, second safety-valve 19, atomizer 22 and vacuum pump 23.First safety-valve 6, second safety-valve 19 is arranged at the two ends, left and right of tunnel body 1 respectively; Atomizer 22 is arranged on outside tunnel body 1, and this atomizer 22 is built with flammable liquid, and atomizer 22 is connected with the second safety-valve 19 by pipeline.Vacuum pump 23 is arranged on outside tunnel body 1, and vacuum pump 23 is connected with atomizer 22 and the first safety-valve 6 respectively by pipeline.Gas vaporization circulating device is transported in restricted clearance after being atomized by flammable liquid, makes the concentration of the inflammable gas in restricted clearance reach requirement of experiment.
Preferably, described temperature dynamic proving installation comprises the first thermopair 2, second thermopair 14, three thermocouple 15 and the 4th thermopair 21, temperature acquisition card 10 and host computer 9.Wherein, host computer 9 adopts computer, and it is arranged on outside tunnel body 1.The corresponding time of each thermopair is Millisecond, and diameter is 0.1mm, maximum thermometric 1200 degrees Celsius, and temperature acquisition card 10 is arranged on outside tunnel body 1, and temperature acquisition card 10 has four passages at least.First thermopair 2, second thermopair 14, three thermocouple 15
with4th thermopair 21 is the test side of temperature dynamic proving installation, is arranged at intervals at respectively in tunnel body 1.Wherein, the first thermopair 2 and the 4th thermopair 21 are disposed on the axis of tunnel body 1, for testing the temperature in tunnel body 1; And the second thermopair 14 is placed in the upper surface of heating hot wall, three thermocouple 15 is positioned at the top of heating hot wall, for testing the thermograde of the top of surface and the heating hot wall heating hot wall.Temperature acquisition card 10 is electrically connected with the first thermopair 2, second thermopair 14, three thermocouple 15 and the 4th thermopair 21 respectively, gathers the signal of each thermopair.Host computer 9 is electrically connected with temperature acquisition card 10, for receiving the data gathered with treatment temperature capture card 10.
Preferably, described Pressure behaviour proving installation comprises the first pressure transducer 13, second pressure transducer 16 and the 3rd pressure transducer 18, pressure acquisition instrument 11 and host computer 9.Wherein, each pressure transducer adopts Chengdu Stettlen pressure transducer (0 ~ 2Mpa), and pressure acquisition instrument 11 is TST6300 dynamic collecting instrument, and Pressure Analysis software adopts Chengdu Stettlen Pressure Analysis software DAP6.13.First pressure transducer 13, second pressure transducer 16 and the 3rd pressure transducer 18 are the test side of Pressure behaviour proving installation, be arranged in tunnel body 1 respectively, and the first pressure transducer 13, the 3rd pressure transducer 18 lay respectively at the two ends, left and right of tunnel body 1, for monitoring the pressure changing at the two ends, left and right in tunnel body 1; Second pressure transducer 16 is positioned at the top of heating hot wall, for detecting the pressure changing above heating hot wall.Pressure acquisition instrument 11 is arranged on outside tunnel body 1, and this pressure acquisition instrument 11 is electrically connected with the first pressure transducer 13, second pressure transducer 16 and the 3rd pressure transducer 18 respectively, and the signal of pressure acquisition instrument 11 to each pressure transducer gathers; Host computer 9 is electrically connected with pressure acquisition instrument 11, describes the dynamic changing curve of pressure with Pressure Analysis software.
Preferably, described gas concentration proving installation comprises concentration analyzer and pipeline.Wherein, concentration analyzer adopts the FGA-4100(5G that Japanese COSMOS Electronics Co., Ltd. produces) automobile concentration analyzer.Concentration analyzer is arranged on outside tunnel body 1, and this concentration analyzer is communicated with tunnel body 1 by pipeline, forms a gas circulation, for testing size and the homogeneity of the concentration of inflammable gas in tunnel body 1.
Preferably, described camera head comprises two high-speed cameras and two tripods, high-speed camera is arranged on outside tunnel body 1, and the first view window 3 and the second view window 20 of tunnel body 1 aimed at respectively by its camera lens, for taking light-off course and the blast process of inflammable gas in tunnel body 1.The shooting speed of high-speed camera is greater than 500 frames/second, and tripod supports high-speed camera.
First, the good various test macro of debugging, its key step realized is:
Step a1: the preliminary work carrying out test, comprises the test to each device: to the demarcation of each pressure transducer, to the preliminary test of heating arrangement, to the debugging of temperature testing device;
Step a2: sweep tunnel, checks that whether tunnel is intact, as: whether nut 12, flange, thermal source pedestal for placed 4, first safety-valve 6 and the second safety-valve can close;
Step a3: arrange heating arrangement, is placed on heating hot wall on thermal source pedestal for placed 4, covers copper coin 28, connects pressure regulator 7 and power supply 8, checks circuit, and debugs;
Step a4: arrange each pressure transducer, connects Pressure behaviour proving installation;
Step a5: arrange gas vaporization circulating device;
Step a6: the position of adjusting high-speed camera;
Step a7: cover each flange, site clearing.
Secondly, start inflammable gas evaporation circulation system, make restricted clearance be full of the inflammable gas of debita spissitudo, its key step realized is:
Step b1: open concentration analyzer;
Step b2: open the first safety-valve 6 and the second safety-valve 19;
Step b3: start vacuum pump 23;
Step b4: the pipeline of concentration analyzer is inserted respectively in tunnel body 1, carry out concentration analysis.Period, to be undertaken repeatedly by concentration analyzer, multiple positions measurement of concetration.For ensureing inflammable gas being evenly distributed in tunnel, after obtaining requiring concentration range, removing the flammable liquid in atomizer, allowing whole cyclic process continue for some time, measure combustable gas concentration, the oxygen concentration in restricted clearance;
Step b5: close the first safety-valve 6 and the second safety-valve 19, withdraw gas concentration proving installation, closes tunnel.
Then, start heating arrangement, complete experiment test, its key step realized is:
Step c1: open high-speed camera.
Step c2: the power regulating pressure regulator 7, power-on 8.
Step c3: by Pressure behaviour proving installation, temperature dynamic proving installation monitors and the change of storage temperature, pressure.
Step c4: after having tested, closing high-speed video camera, opens gas concentration proving installation, test blast or the change of various parameter after not exploding.
Finally, complete the follow-up work after test, its key step realized is:
Steps d 1: the flange opening tunnel, purges restricted clearance with hair-dryer, combustion gas.
Steps d 2: data processing, analysis, obtains correlated results.
Concrete embodiment: test volume concentration be the oil gas of 2.4% to the Changing Pattern of the flame structure of closed restricted clearance thermal explosion combustion generating process etc., implementation step is as follows:
Step 1: arrange various instrument and equipment, checks circuit, installs various experimental apparatus and equipment.
Step 2: debugging, calibration test system, make system in running order, site clearing.
Step 3: arrange heat power supply device, cover copper coin 28, sealing tunnel body 1.
Step 4: start vacuum pump 23, is input to 93# gasoline in tunnel body 1 after the atomization of gas vaporization circulating device.Period, undertaken repeatedly by gas concentration proving installation, multiple positions gas concentration measure.For ensureing oil gas being evenly distributed in tunnel, after gas concentration reaches experiment desired concn scope, removing the gasoline in atomizer, allowing whole cyclic process continue for some time, then measuring the concentration of the oil gas in restricted clearance and the concentration of oxygen.
Step 5: the power of pressure regulator 7 is set to 3000w, opens heating arrangement.
Step 6: by temperature dynamic proving installation, Pressure behaviour proving installation monitoring also storage temperature, the change of pressure.
Step 7: high-speed camera, from the scene changes in each view window production restricted clearance, until tested, tests the change of various parameter after catching fire, so that subsequent analysis result.
Step 8: the flange opening restricted clearance (i.e. tunnel body 1), purges restricted clearance with hair-dryer, combustion gas;
Step 9: data processing, analysis, obtains correlated results.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. an inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition, is characterized in that, comprising:
For the tunnel of the restricted clearance of simulated explosion;
For being atomized flammable liquid and being input to the gas vaporization circulating device in restricted clearance, this gas vaporization circulating device is communicated with tunnel by pipeline;
For the gas concentration proving installation of the size and homogeneity of testing the concentration of inflammable gas in restricted clearance, this gas concentration proving installation is communicated with tunnel by pipeline;
For the heating arrangement heated the inflammable gas in restricted clearance, the heat output terminal of this heating arrangement is positioned at tunnel;
For following the tracks of the temperature dynamic proving installation of the temperature changing process in restricted clearance, the test side of this temperature dynamic proving installation is positioned at tunnel;
For recording the Pressure behaviour proving installation of the pressure change in restricted clearance, the test side of this Pressure behaviour proving installation is positioned at tunnel inwall;
For recording the structure of inflammable gas at blast process Flame and the camera head of change.
2. inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition according to claim 1, it is characterized in that: described tunnel comprises the tunnel body (1) that at least can bear 2MPa pressure, this tunnel body (1) is in hollow and the cylindrical shape of left and right both ends open, flange seal is used respectively in the two ends, left and right of tunnel body (1), the first view window (3) is provided with at the middle part of tunnel body (1), the second view window (20) is provided with at the left part of tunnel body (1), thermal source pedestal for placed (4) is provided with the first view window (3) opposite position place in tunnel body (1), the top in described tunnel body (1) is being respectively equipped with gas vent (17) with the first view window (3) and the second view window (20) opposite position place, this gas vent (17) uses flange seal.
3. inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition according to claim 2, is characterized in that: described heating arrangement comprises:
Heating hot wall, heating hot wall is arranged on thermal source pedestal for placed (4), it comprises base (27), be arranged on the heat screen (24) that the upper and end face of base (27) has hole, be arranged on the stone or metal plate for standing a stove on as a precaution against fire (26) in heat screen (24), be arranged on the stove silk (25) on stone or metal plate for standing a stove on as a precaution against fire (26), and be arranged on the upper and copper coin (28) be positioned at directly over stone or metal plate for standing a stove on as a precaution against fire (26) of heat screen (24);
Pressure regulator (7), this pressure regulator (7) is arranged on tunnel body (1) outward, and pressure regulator (7) is electrically connected with described stove silk (25);
Power supply (8), this power supply (8) is arranged on tunnel body (1) outward, and power supply (8) is electrically connected with described pressure regulator (7).
4. inflammable gas thermal explosion pests occurrence rule test macro under the restricted clearance hot wall condition according to Claims 2 or 3, is characterized in that: described gas vaporization circulating device comprises:
First safety-valve (6), the second safety-valve (19), be arranged at the two ends, left and right of tunnel body (1) respectively;
Atomizer (22), this atomizer (22) is built with flammable liquid, and atomizer (22) is arranged on tunnel body (1) and be connected with the second safety-valve (19) by pipeline outward;
Vacuum pump (23), this vacuum pump (23) is arranged on tunnel body (1) and be connected with atomizer (22) and the first safety-valve (6) respectively by pipeline outward.
5. inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition according to claim 3, is characterized in that: described temperature dynamic proving installation comprises:
First thermopair (2), the second thermopair (14), three thermocouple (15) and the 4th thermopair (21), be arranged at intervals in tunnel body (1) respectively, and the second thermopair (14) is placed in the upper surface of hot wall hot wall, three thermocouple (15) is positioned at the top of heating hot wall;
Temperature acquisition card (10), this temperature acquisition card (10) is arranged on tunnel body (1) outward, temperature acquisition card (10) is electrically connected with the first thermopair (2), the second thermopair (14), three thermocouple (15) and the 4th thermopair (21) respectively, gathers the signal of each thermopair;
Host computer (9), this host computer (9) is arranged on tunnel body (1) outward, and host computer (9) is electrically connected with temperature acquisition card (10), for the data received and treatment temperature capture card (10) gathers.
6. inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition according to claim 3, is characterized in that: described Pressure behaviour proving installation comprises:
First pressure transducer (13), the second pressure transducer (16) and the 3rd pressure transducer (18), be arranged in tunnel body (1) respectively, and the first pressure transducer (13), the 3rd pressure transducer (18) lay respectively at the two ends, left and right of tunnel body (1), the second pressure transducer (16) is positioned at directly over heating hot wall;
Pressure acquisition instrument (11), this pressure acquisition instrument (11) is arranged on tunnel body (1) outward, pressure acquisition instrument (11) is electrically connected with the first pressure transducer (13), the second pressure transducer (16) and the 3rd pressure transducer (18) respectively, gathers the signal of each pressure transducer
Host computer (9), this host computer (9) is electrically connected with pressure acquisition instrument (11), for the data received and processing pressure Acquisition Instrument (11) gathers.
7. inflammable gas thermal explosion pests occurrence rule test macro under the restricted clearance hot wall condition according to Claims 2 or 3, is characterized in that: described gas concentration proving installation comprises:
Concentration analyzer, this concentration analyzer is arranged on tunnel body (1) outward, and concentration analyzer is communicated with tunnel body (1) by pipeline, forms a gas circulation, for testing size and the homogeneity of the concentration of tunnel body (1) interior inflammable gas.
8. inflammable gas thermal explosion pests occurrence rule test macro under the restricted clearance hot wall condition according to Claims 2 or 3, is characterized in that: described camera head comprises:
Two high-speed cameras, described high-speed camera is arranged on tunnel body (1) outward, its camera lens aims at the first view window (3) and second view window (20) of shooting tunnel body (1) respectively, for taking light-off course and the blast process of tunnel body (1) interior inflammable gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393453.5U CN204666546U (en) | 2015-06-09 | 2015-06-09 | Inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393453.5U CN204666546U (en) | 2015-06-09 | 2015-06-09 | Inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204666546U true CN204666546U (en) | 2015-09-23 |
Family
ID=54136919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520393453.5U Expired - Fee Related CN204666546U (en) | 2015-06-09 | 2015-06-09 | Inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204666546U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324033A (en) * | 2016-08-16 | 2017-01-11 | 西安近代化学研究所 | Visualized explosive cooking-off and gas product analysis device |
| CN106908478A (en) * | 2017-02-16 | 2017-06-30 | 中国计量大学 | Judge the experimental system and detection method of fuel gas effectiveness of explosion suppression in restricted clearance |
| CN107449799A (en) * | 2017-09-15 | 2017-12-08 | 公安部天津消防研究所 | A kind of Mixed Gases Explosion on-site testing device and assay method |
| CN108627608A (en) * | 2018-03-28 | 2018-10-09 | 东北大学 | Ignition of flammable vapour sensibility tubular type test device and test method under flow regime |
| CN108802100A (en) * | 2018-06-11 | 2018-11-13 | 公安部天津消防研究所 | A kind of flammable gas explosion experimental provision and application method with concentration gradient |
| CN109752410A (en) * | 2019-01-15 | 2019-05-14 | 中石化石油工程技术服务有限公司 | A kind of confined space flammable gas explosion simulation test device and analogy method |
| CN110794002A (en) * | 2019-10-12 | 2020-02-14 | 北京科技大学 | Experimental system for synchronously testing detonation propagation structure in multi-diameter pipeline |
| CN112834567A (en) * | 2021-01-26 | 2021-05-25 | 南京工业大学 | Initial flow state premixed combustible gas/dust explosion experimental device and method |
| CN113834853A (en) * | 2021-08-27 | 2021-12-24 | 北京石油化工学院 | Device and method for testing explosion characteristics of combustible gas in oil-water-gas coexistence limited space |
-
2015
- 2015-06-09 CN CN201520393453.5U patent/CN204666546U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324033A (en) * | 2016-08-16 | 2017-01-11 | 西安近代化学研究所 | Visualized explosive cooking-off and gas product analysis device |
| CN106908478A (en) * | 2017-02-16 | 2017-06-30 | 中国计量大学 | Judge the experimental system and detection method of fuel gas effectiveness of explosion suppression in restricted clearance |
| CN107449799A (en) * | 2017-09-15 | 2017-12-08 | 公安部天津消防研究所 | A kind of Mixed Gases Explosion on-site testing device and assay method |
| CN108627608A (en) * | 2018-03-28 | 2018-10-09 | 东北大学 | Ignition of flammable vapour sensibility tubular type test device and test method under flow regime |
| CN108802100A (en) * | 2018-06-11 | 2018-11-13 | 公安部天津消防研究所 | A kind of flammable gas explosion experimental provision and application method with concentration gradient |
| CN108802100B (en) * | 2018-06-11 | 2020-08-25 | 应急管理部天津消防研究所 | Combustible gas explosion experimental device with concentration gradient and use method |
| CN109752410A (en) * | 2019-01-15 | 2019-05-14 | 中石化石油工程技术服务有限公司 | A kind of confined space flammable gas explosion simulation test device and analogy method |
| CN110794002A (en) * | 2019-10-12 | 2020-02-14 | 北京科技大学 | Experimental system for synchronously testing detonation propagation structure in multi-diameter pipeline |
| CN112834567A (en) * | 2021-01-26 | 2021-05-25 | 南京工业大学 | Initial flow state premixed combustible gas/dust explosion experimental device and method |
| CN113834853A (en) * | 2021-08-27 | 2021-12-24 | 北京石油化工学院 | Device and method for testing explosion characteristics of combustible gas in oil-water-gas coexistence limited space |
| CN113834853B (en) * | 2021-08-27 | 2024-01-12 | 北京石油化工学院 | Device and method for testing explosion characteristics of fuel gas in oil-water-gas coexistence limited space |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204666546U (en) | Inflammable gas thermal explosion pests occurrence rule test macro under restricted clearance hot wall condition | |
| CN106441912B (en) | A kind of multifunctional spray measures constant volume bullet with combustion visualization | |
| CN103604833B (en) | A kind of Character of Coal Dust Explosion pilot system and method | |
| CN103454308B (en) | A kind of combustible gas and air pre-mixing gas explosion process Flame Propagation and the experimental rig of suppression | |
| CN109613205B (en) | Method and system for testing deflagration flame and pressure coupling of premixed gas clouds with different humidities in open space | |
| Vignat et al. | High amplitude combustion instabilities in an annular combustor inducing pressure field deformation and flame blow off | |
| CN108318254B (en) | A kind of device and method that Free propagation flame is influenced for measuring sound wave | |
| CN104089651A (en) | Smog environment simulation device for testing polarization laser transmission features | |
| CN104330519A (en) | Particle airflow suspension laser ignition experiment device | |
| Yang et al. | Effect of equivalence ratio on hydrogen–methane–air deflagration in a duct with an open end | |
| CN102840963A (en) | Compound gas flow generation device under mutual action of atmosphere turbulence and laser | |
| CN109708145B (en) | Visual high-pressure combustor for measuring propellant burning speed under multiple swinging angles | |
| Li et al. | Prediction of equivalence ratio in pulse combustor from ion current amplitude spectrum | |
| CN210894099U (en) | Flue gas on-line analyzer | |
| CN108426917A (en) | A kind of wide open space vaporous cloud explosion chain reaction test system and its test method | |
| Liu et al. | Research on ignition energy characteristics and explosion propagation law of coal dust cloud under different conditions | |
| CN105911220B (en) | A kind of Propellant combustion gas composition test device | |
| CN107271188B (en) | A kind of constant volume combustion bomb of analog vortex and tumble motion | |
| CN104820075B (en) | A kind of gas-detecting device and special spiral gas indoor location spherical gas detection probe structure | |
| CN114217007B (en) | Outer flame ignition platform based on cone calorimeter | |
| US20180280746A1 (en) | Combustion arrester quantification systems and methods | |
| CN207850968U (en) | A kind of wide open space vaporous cloud explosion chain reaction test system | |
| CN104165749A (en) | Experimental device for simulating influence mechanism to flame structure flow field characteristics of bottom cross wind | |
| Chien | Electrical aspects of impinging flames | |
| CN104913936B (en) | Single inlet and outlet miniature scale CONSTANT VOLUME MODEL COMBUSTION CHAMBER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160609 |