CN106248733B - A kind of more form multifunctional gas, the datonation-inhibition experimental system of dust explosion - Google Patents
A kind of more form multifunctional gas, the datonation-inhibition experimental system of dust explosion Download PDFInfo
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- CN106248733B CN106248733B CN201610718097.9A CN201610718097A CN106248733B CN 106248733 B CN106248733 B CN 106248733B CN 201610718097 A CN201610718097 A CN 201610718097A CN 106248733 B CN106248733 B CN 106248733B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility
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Abstract
A kind of more form multifunctional gas of present invention offer, the datonation-inhibition experimental system of dust explosion, multiple external trigger interfaces can be met and carry out external device, the high transparency quartz form of multiple advanced optical testing instrument synchronous applications realizes that system is tested in the integration test explosion test that multiple gases are prepared.Further include at least two optical diagnostics forms, igniting external trigger interface, external trigger of dusting interface including TT＆C system, explosive container, the ignition system being connected with explosive container, air distribution system, powder sprinkling system, pumped vacuum systems, heating constant-temperature system；Optical diagnostics form is arranged in explosive container side；The setting of external trigger interface light a fire on adjustable energy high-voltage pulses device；External trigger of dusting interface is arranged on system monitoring host.
Description
Technical field
The present invention relates to gas, the datonation-inhibition experimental systems of dust explosion, and in particular to a kind of more form multifunctional gas, powder
The datonation-inhibition experimental system of dust explosion.
Background technology
In the industrial production, the external environment residing for fuel gas and dust is frequently not normal temperature and pressure, and multicomponent is mixed
It closes gas and dust explosion is very common, the situation for generation of exploding is complicated and changeable.Currently, gas, dust explosion research both at home and abroad
Field is relatively more using the experimental study that 20L spherical shape systems are carried out, and all compares the Exploding test parameter of 20L spherical shape reaction vessels
Approve, but existing 20L spherical shapes system is mostly the gas of standard, dust explosion test system, the country only has Chongqing Mei Ke institutes, middle north
The units such as university have been made by oneself with alternating temperature, transformation, the 20L spherical blast experimental systems for becoming ignition energy function, but these systems lack
Weary external trigger device cannot meet the integration test of external device, and observation window dimension is small and light transmittance is not high, distribution component one
As be mostly 3 kinds, component is relatively fewer, can not achieve multiple gases preparation.
Invention content
The integration test of external device cannot be met by lacking external trigger device to solve system, observation window dimension it is small and
Light transmittance is not high, and distribution component is relatively fewer, can not achieve the shortcomings of multiple gases are prepared, it is more that the present invention provides a kind of more forms
The datonation-inhibition experimental system of function gas, dust explosion comprising multiple external trigger interfaces carry out external devices, it is multiple meet it is advanced
The high transparency quartz form of optical testing instrument synchronous applications is, it can be achieved that the integration test that multiple gases are prepared.
Technical scheme is as follows：
A kind of more form multifunctional gas, the datonation-inhibition experimental system of dust explosion, including TT＆C system, explosive container, with it is quick-fried
Ignition system that fried container is connected, air distribution system, powder sprinkling system, pumped vacuum systems, heating constant-temperature system；The igniting
System includes adjustable energy high-voltage pulses device and ignitor；The TT＆C system includes system monitoring host, is surveyed with system
Control the computer of host remote communication；The heating constant-temperature system includes oil bath heating layer, heater box, circulating pump, the oil bath
Heating layer is wrapped in explosive container outer surface；
It further include at least two optical diagnostics forms, igniting external trigger interface, external trigger of dusting interface；The optical diagnostics
Form is arranged in explosive container side；The igniting external trigger interface setting is on adjustable energy high-voltage pulses device, according to point
Fiery signal, which synchronizes, triggers external test equipment；The external trigger interface that dusts is arranged on system monitoring host, according to the letter that dusts
It is number synchronous to trigger external test equipment.
Further, the air distribution system includes seven tunnel distribution pipelines and distribution closed control valve, seven road gas-distribution pipe
Road is connect by the distribution closed control valve with explosive container, including connecting tube and is mounted on per gas-distribution pipe road all the way
Match flow control valves, distribution air intake control valve in connecting tube.
Further, the optical diagnostics form is located at the side extension end of explosive container, and quantity is 3, Yi Duishe
Parallel lines in central horizontal position, another is located in the same horizontal position in the parallel lines direction.
Further, the optical diagnostics form is made of vitreous silica.
Further, the igniting external trigger interface can connect high-speed camera, for the flame propagation to explosion time
Phenomenon is shot.
Further, the system monitoring host is connect by wireless test and control dual-mode antenna with computer, carries out control letter
Communication transfer number with test data.
Further, the oil bath heating layer is using high temperature resistant silicone oil as heated constant temperature medium.
Further, pumped vacuum systems includes negative pressure taking air pump, and the negative pressure taking air pump is equipped with and takes gas interface, described to take gas
The external air bag of interface is collected product after explosion occurs, is further analyzed to product.
Further, the powder sprinkling system includes compressed air bottle, overcurrent adjustable valve, ventilating control valve, Chu Fen
Tank, the compressed air bottle passes sequentially through flow control valve, ventilating control valve is connected with storage powder tank, and the compressed air bottle is to
Prepared mixture is quickly stirred, and provides positive pressure environment to explosive reaction tank body.
Compared with the existing technology, the present invention has the following effects that：
1. system is tested in the explosion test for carrying out external device synchronism detection at least two external trigger interface, can
It realizes in advance or Time-delayed trigger, triggered time can be voluntarily arranged, meet advanced optical testing instrument synchronous applications, meet to gas
The synchronism detection demand of the parameters such as pressure, temperature, flow field, the optical signature of body, dust explosion and the datonation-inhibition phenomenon of Explosion suppressant.
2. the high transparency quartz form of advanced optical testing instrument synchronous applications can be met by opening up at least two or more, increase
Big visualization range.
3. most 7 kinds of gas compoundings can be realized, solve the problems, such as that distribution component is less.
4. realizing, ignition energy (0.01mJ-1000mJ) and ignition delay time variable with initial temperature, initial pressure
The automatic control level of the adjustable of (0-300s), external trigger function and whole instrument etc. operation, and then meet in room temperature
Carry out different ignition energy automatic ignitions under the conditions of to 200 DEG C, 10KPa to 1000Kpa (absolute pressure), be automatically performed vacuumize, dust
M- pressure curve when storehouse pressurising, gas/dust automatic sampling, data acquisition, data transmission, data storage, drafting.
Description of the drawings
Fig. 1 is the system structure diagram of the present invention.
Reference numeral：1- retort lids, 2- ignitors, 3- is adjustable energy high-voltage pulses device, 4- igniting external triggers
Interface, 5- explosive reaction tank bodies, 6- oil bath heating layers, 8- distribution pressure sensors, 9- closed control valves one, 10- closing controls
Valve two, 11- take gas control valve, 12- negative pressure taking air pumps automatically, and 13- vacuumizes control valve, and 14- takes gas interface, 15- vacuum pumps,
16- primary pressure sensors, 17- manual exhaust valves, 18- heated for controlling temperature unit interfaces, 19- store up powder tank, 20- the blowing pressures sensing
Device, 21- ventilating control valves, 22- flow control valves, 23- compressed air bottles, 24- dust external trigger interface, 25- system monitoring masters
Machine, 26- computers, 27- optical diagnostics forms, 28-, which dusts, controls pneumatic operated valve, 29- distribution closed control valves, and 30- matches throughput
Control valve, 31- distribution air intake control valves, 32- wireless test and control dual-mode antennas, 33- temperature sensors, 34- circulating pumps, 35- heating
Case, 36- TT＆C systems, 37- explosive containers, 38- ignition systems, 39- air distribution systems, 40- powder sprinkling systems, 41- are vacuumized
System, 42- heating constant-temperature systems.
Specific implementation mode
Technical scheme of the present invention is described in more detail below in conjunction with the accompanying drawings.
A kind of more form multifunctional gas, the datonation-inhibition experimental system of dust explosion are as shown in Figure 1, explosive container 37 includes to hold
Product is about 20L, the explosive reaction tank body 5 of internal diameter about 340mm and the retort that 5 top of explosive reaction tank body is held in by flange
Lid 1, explosive container 37 extend three a diameter of 110mm, and light transmittance is not less than 90% optical diagnostics form 27, Yi Duishe
On the parallel lines of central horizontal position, another is located in the same horizontal position in the parallel lines direction, convenient for peace
Dress optical test equipment simultaneously ensures not pollute sight glass after dusting in container.
Heating constant-temperature system 42 includes circulating pump 34, heater box 35 and the oil for being wrapped in 5 outer surface of explosive reaction tank body
Heating layer 6 is bathed, circulating pump 34 is connect with heater box 35, then is connect with oil bath heating layer 6 by pipeline.Oil bath heating layer 6 is with silicon
Oil is medium, and one layer of heat preservation material is wrapped up outside 6 outside of oil bath heating layer and heating oil-piping layout.Heating constant-temperature system 42 passes through
Heated for controlling temperature unit interface 18 and temperature sensor 33 realize the control of temperature, heated for controlling temperature unit interface 18 and temperature sensing
Device 33 is connected with explosive reaction tank body 5, is connected on system monitoring host 25 by control circuit.
Ignition system 38 includes high-voltage pulses device 3 and ignitor 2, and igniting external trigger interface 4 passes sequentially through adjustable
Energy high-voltage pulses device 3, retort lid 1 is connect with ignitor 2, and ignitor 2 carries out inside explosive reaction tank body 5
Ignition operation, igniting external trigger interface 4 are connected on by control circuit on system monitoring host 25, the energy of igniting external trigger interface 4
Amount degree of regulation is 0.01mJ, and electrode position and discharging gap are adjustable, to meet different ignition locations to Mixed Gases Explosion
Influence.Signal can be sent out by external trigger interface 4 of lighting a fire while igniting, synchronize test to control external equipment, such as
External high speed camera shoots the flame propagation phenomenon of explosion time.
Air distribution system includes seven tunnel distribution pipelines and distribution closed control valve 29 and distribution pressure sensor 8, seven tunnel distributions
Pipeline is connect by distribution closed control valve 29 with explosive container 37, includes connecting tube and installation per gas-distribution pipe road all the way
Match flow control valves 30, distribution air intake control valve 31 in connecting tube, is controlled with flow control valves 30 and distribution air inlet
Valve 31 is connected on system monitoring host 25 by control circuit and carries out distribution operation automatically, and distribution, air inlet are carried out using partial pressure method
Amount realizes quantitative air inlet according to the pressure changing of distribution pressure sensor 8 by 31 high-speed switch of distribution air intake control valve,
Distribution precision is 0.1%.
Distribution pressure sensor 8 is connected through closed control valve 1 with explosive reaction tank body 5, and is connected on by control circuit
It is automatically brought into operation on system monitoring host 25.Primary pressure sensor 16 and manual exhaust valve 17 respectively with explosive reaction tank body 5
Inside is connected, and primary pressure sensor 16 is connected on by control circuit on system monitoring host 25, can automatically be adopted while igniting
Collect the dynamic pressure in blast process container, acquisition rate 5K Hz.
Powder sprinkling system 40 includes storage powder tank 19, the blowing pressure sensor 20, ventilating control valve 21, flow control valve
22, compressed air bottle 23, dust control pneumatic operated valve 28, compressed air bottle 23 passes sequentially through flow control valve 22, ventilating control valve
21 are connected with storage powder tank 19, and the blowing pressure sensor 20 is connected with storage powder tank 19, stores up powder tank 19 and is external to explosive reaction tank body 5
The control pneumatic operated valve 28 that dusts of bottom is connected, and compressed air bottle 23 can quickly stir prepared mixture, fill
Air pressure force snesor 20, ventilating control valve 21, the control pneumatic operated valve 28 that dusts are connected on system monitoring host by control circuit respectively
It is automatically brought into operation on 25.25 lower part of system monitoring host is equipped with the manually operable external trigger interface 24 that dusts, outer touch of dusting
Hair interface 24 can connect external equipment and synchronize test.
Pumped vacuum systems 41 includes closed control valve 2 10, takes gas control valve 11 automatically, negative pressure taking air pump 12, vacuumizes control
Valve 13 processed, vacuum pump 15 have the negative pressure taking air pump 12 for taking gas interface 14 through taking gas control valve 11 and closed control valve two automatically
10 are connected, and take gas interface 14 can external air bag further product analysis of collection product progress after explosion occurs.Vacuum pump
15 evacuated control valves 13 are connected with closed control valve 2 10, and 2 10 explosive reaction tank body 5 of closed control valve is connected, closing control
Valve 2 10 processed takes gas control valve 11 automatically, vacuumizes control valve 13 and be connected on system monitoring host 25 by control circuit respectively
It is automatically brought into operation.
Vacuum pump 15 will be vacuumized by 1 closed explosive reaction tank body 5 of retort lid, and under test gas is by matching throughput
Control valve 30, distribution air intake control valve 31, then explosive reaction tank body 5, compressed air bottle are entered by distribution closed control valve 29
The powder stored up in powder tank 19 is sprayed into explosion instead by 23 by flow control valve 22, ventilating control valve 21 through the control pneumatic operated valve 28 that dusts
It answers in tank body 5, compressed air bottle 23 provides positive pressure environment to explosive reaction tank body 5, and distribution pressure sensor 8 is by closed control valve
One 9 controls can reduce distribution error.External trigger of dusting interface 24 can connect external equipment and synchronize test, such as monitor dust and exist
Distribution situation in explosive reaction tank body 5, system monitoring host 25 are adopted with primary pressure sensor 16 and the blowing pressure sensor 20
The data of collection are foundation to control the opening and closing of each control valve.
TT＆C system 36 includes system monitoring host 25, the computer 26 with 25 telecommunication of system monitoring host, system
Measurement and control host computer 25 is connect by wireless test and control dual-mode antenna 32 with computer 26, it can be achieved that being operated far from experiment porch.
To 6 circulating-heating of the oil bath heating layer and on demand constant temperature by circulating pump 34, heater box 35.Keep explosive reaction tank
5 constant temperature of body, air inlet and after the completion of dusting, ignitor 2 carries out ignition operation.External trigger interface of lighting a fire can be passed through while igniting
The 4 signal control external equipments sent out synchronize test, and such as external high speed camera carries out the flame propagation phenomenon of explosion time
Shooting, related optical test equipment carry out corresponding data acquisition by being equipped with the optical diagnostics form 27 of vitreous silica.It is quick-fried
After fried generation, the taking-up explosion product of gas interface 14 is taken to be further analyzed by negative pressure taking air pump 12.Primary pressure sensor
The pressure data of acquisition is transferred to m- pressure curve when computer 26 is handled and stored and drawn.Reach Simultaneous Determination not
Same ignition energy, different ignition delay times, different initial pressures, different initial temperatures, different component mixed gas and powder
Explosion and the datonation-inhibition phenomenon of Explosion suppressant the parameters such as pressure, temperature, flow field, optical signature purpose.
Claims (5)
1. a kind of more form multifunctional gas, the datonation-inhibition experimental system of dust explosion, including TT＆C system, explosive container and explosion
Ignition system that container is connected, air distribution system, powder sprinkling system, pumped vacuum systems, heating constant-temperature system；The igniting system
System includes adjustable energy high-voltage pulses device；The TT＆C system includes system monitoring host, leads to system monitoring host remote
The computer of news；The heating constant-temperature system includes the oil bath heating layer for being wrapped in explosive container outer surface；It is characterized in that：Also
Including optical diagnostics form, igniting external trigger interface, external trigger of dusting interface；The optical diagnostics form is arranged in explosive container
Side；It is external that the igniting external trigger interface setting synchronizes triggering on adjustable energy high-voltage pulses device, according to ignition signal
Test equipment；The external trigger interface that dusts is arranged on system monitoring host, is synchronized according to the signal that dusts and triggers external test
Equipment；
The air distribution system includes seven tunnel distribution pipelines and distribution closed control valve, and the seven tunnels distribution pipeline passes through described match
Gas closed control valve is connect with explosive container, includes connecting tube and the distribution in connecting tube per gas-distribution pipe road all the way
Flow control valve, distribution air intake control valve；
The optical diagnostics form is located at the side extension end of explosive container, and quantity is 3, and a pair is located at central horizontal position
On parallel lines, another is located in the same horizontal position in the parallel lines direction；
The pumped vacuum systems includes negative pressure taking air pump, and the negative pressure taking air pump is equipped with and takes gas interface, described to take gas interface external
Air bag is collected product after explosion occurs, is further analyzed to product；
The powder sprinkling system includes compressed air bottle, overcurrent adjustable valve, ventilating control valve, storage powder tank, and the compression is empty
Gas cylinder passes sequentially through flow control valve, ventilating control valve is connected with storage powder tank, and the compressed air bottle is to prepared mixing
Object is quickly stirred, and provides positive pressure environment to explosive reaction tank body.
2. more form multifunctional gas according to claim 1, the datonation-inhibition experimental system of dust explosion, it is characterised in that：Institute
Optical diagnostics form is stated to be made of vitreous silica.
3. more form multifunctional gas according to claim 2, the datonation-inhibition experimental system of dust explosion, it is characterised in that：Institute
It states igniting external trigger interface and is connected with high-speed camera, shot for the flame propagation phenomenon to explosion time.
4. more form multifunctional gas according to claim 3, the datonation-inhibition experimental system of dust explosion, it is characterised in that：Institute
System monitoring host is stated to connect with computer by wireless test and control dual-mode antenna.
5. more form multifunctional gas according to claim 4, the datonation-inhibition experimental system of dust explosion, it is characterised in that：Institute
Oil bath heating layer is stated using silicone oil as medium.
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| CN201610718097.9A CN106248733B (en) | 2016-08-24 | 2016-08-24 | A kind of more form multifunctional gas, the datonation-inhibition experimental system of dust explosion |
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| CN101694448B (en) * | 2009-10-20 | 2012-08-29 | 西安近代化学研究所 | Vapor pressure testing device for easy-sublimation solid energetic materials |
| JP2011220813A (en) * | 2010-04-08 | 2011-11-04 | Sumitomo Chemical Co Ltd | Dust explosion test apparatus and dust explosion test method |
| CN102879416B (en) * | 2012-09-26 | 2014-04-23 | 公安部天津消防研究所 | Experiment device and experiment method for gas cloud combustion, explosion simulation and inerting, inhibition |
| CN102879429B (en) * | 2012-10-11 | 2015-03-04 | 南京工业大学 | Testing system for gas explosion characteristic size effect |
| CN104280421A (en) * | 2014-10-20 | 2015-01-14 | 中国人民解放军总后勤部油料研究所 | Fuel explosive performance testing system and fuel explosive performance testing method |
| CN204832085U (en) * | 2015-08-07 | 2015-12-02 | 中海石油气电集团有限责任公司 | Height warm purgation combustible gas explosion characteristic testing experiment device |
| CN206114573U (en) * | 2016-08-24 | 2017-04-19 | 西安科技大学 | Multi -functional gas of many windows, datonation -inhibition experimental system of dust explosion |
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