CN107038934B - A kind of full-automatic dust explosion demonstrator - Google Patents
A kind of full-automatic dust explosion demonstrator Download PDFInfo
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- CN107038934B CN107038934B CN201710351198.1A CN201710351198A CN107038934B CN 107038934 B CN107038934 B CN 107038934B CN 201710351198 A CN201710351198 A CN 201710351198A CN 107038934 B CN107038934 B CN 107038934B
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- electrically connected
- dust explosion
- demonstration device
- air compressor
- compressor machine
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
Abstract
The invention discloses a kind of full-automatic dust explosion demonstrators, the air compressor machine is mounted on the inside of antinose-dive leg, and air compressor machine is connected to by connecting line with the inlet end of check valve, the gas outlet of the check valve is connected to the gas transmission end of the air inlet of normally closed solenoid valve and storage cylinder respectively by connecting line, the normally closed solenoid valve is connected to by connecting line with demonstration device nozzle, the bottom of acrylic demonstration device cylinder is arranged in the demonstration device nozzle, high-voltage pulses device and chip are electrically connected, chip and total power switch are electrically connected, mercury formula contact switch is installed on the pressure release cover board, the mercury formula contact switch is electrically connected by conducting wire and combined aural and visual alarm, the combined aural and visual alarm and voice announcer are mounted on the upper end of antinose-dive leg.Present invention automation and intelligence degree are high, and demonstration success rate is high, can broadcast the principle of dust explosion constantly and how prevent the security knowledges such as dust explosion.
Description
Technical field
The invention belongs to dust explosion technical fields, and in particular to a kind of full-automatic dust explosion demonstrator.
Background technique
Dust explosion: referring to combustible dust within the scope of explosion limit, encounters heat source (open fire or high temperature) flame moment biography
It is sowed at entire mixed dust space, chemical reaction velocity is exceedingly fast, while discharging a large amount of heat, very high temperature and pressure is formed,
The energy of system is converted into mechanical energy and light and heat radiation, has very strong destructive power.Therefore dust explosion is industry security
One of significant risk source of production.
Harbin linen factory in 1987, flax dust explosion, 58 people are dead, injured 177 people, direct economic loss 8,820,000
Member.
Cornstarch explosion occurs for 2 months 2010 Qinhuangdao, and 19 people are dead, and 49 people are injured.
The Zhejiang of in August, 2012 Ouhai aluminium powder dust explosion in production operation, 13 people are dead, and 15 people are injured.
Stearate powder dust explosion occurs for Jiangsu in April, 2014 Rugao City, and 8 people are dead, and 9 people are injured.
2014 Nian8Yue Fauna of Kunshan, Jiangsu city aluminium powder dust explosions, 146 people are dead, and 91 people are injured.Direct economic loss 3.51 hundred million
Member.
Because shedding cornstarch during Taiwan in June, 2015 amusement park performance, chance high temperature headlamp explodes, 12 people
Death, 516 people are injured, wherein there is 4 continent female tourists.
Therefore, how just these dust explosion accidents, make us recognize the risk of modern industry dust explosion again,
Confirmation knows whether handled industrial dust can occur dust explosion, reinforces prevention to enterprise and has important practical significance.
In the prior art, most of dust explosion demonstrator is all that dust explosion demonstration, hand are operated using manually controlling
Dynamic operation is because speed is slower, and instantaneous velocity is smaller, and can not set out dust ignition point in time, and success rate is lower.It is sent out by investigation
Existing, the demonstrating effect of dust at present explosion demonstrator is not satisfactory, and some demonstrator demonstrating effect success rates are lower, in the market
Also it is difficult to find a comparatively ideal product.The invention patent be based on this thought and status research and development.It passes through special
Design and test nearly 100 times, can intuitively demonstrate the scene and risk of dust explosion, at the same have very high safety,
Reliability has been widely applied in the safety training of teaching and enterprise, has obtained the concern and approval of relevant department.
Summary of the invention
The purpose of the present invention is to solve the automation of dust explosion demonstrator in the prior art is low, success rate when demonstration
It is relatively low, and the disadvantage that effect is undesirable, and a kind of full-automatic dust explosion demonstrator proposed.
To achieve the above object, present invention employs following technical solutions:
A kind of full-automatic dust explosion demonstrator, including uninterruptible power supply, air compressor machine, storage cylinder, acrylic demonstration device cylinder
Body, pressure release cover board, antinose-dive leg and total power switch, the uninterruptible power supply are electrically connected by conducting wire and total power switch,
Pressure switch is installed, pressure switch and total power switch are electrically connected, and the air compressor machine is mounted on the air compressor machine
The inside of antinose-dive leg, and air compressor machine is connected to by connecting line with the inlet end of check valve, the gas outlet of the check valve is logical
It crosses connecting line to be connected to the gas transmission end of the air inlet of normally closed solenoid valve and storage cylinder respectively, the normally closed solenoid valve passes through connection
Pipeline is connected to demonstration device nozzle, and the bottom of acrylic demonstration device cylinder is arranged in the demonstration device nozzle, and the acrylic is drilled
Show that the upper end of device cylinder is equipped with high-voltage pulses device, high-voltage pulses device and chip are electrically connected, chip and general supply
Switch is electrically connected, and the pressure release cover plate lid is in the upper end of acrylic demonstration device cylinder, and the pressure release cover board passes through cordage
It crosses antinose-dive leg to connect with clump weight, mercury formula contact switch is installed on the pressure release cover board, mercury formula contact is opened
It closes and is electrically connected by conducting wire and combined aural and visual alarm, the combined aural and visual alarm and voice announcer are mounted on the upper of antinose-dive leg
End.
Preferably, the mercury formula contact switch is electrically connected by conducting wire and voice announcer.
Preferably, pressure switch is installed, pressure switch and total power switch are electrically connected on the air compressor machine.
Technical effect and advantage of the invention: a kind of full-automatic dust explosion demonstrator proposed by the present invention, with existing skill
Art is compared, and the present invention controls the quick pneumatics air of air compressor machine by pressure switch, and storage cylinder can store and have
Therefore the air of certain pressure can satisfy the requirement of dust explosion, keep the dust of acrylic demonstration device inner barrel fast
Speed is uniformly spread into acrylic demonstration device cylinder, and when the igniting of high-voltage pulses device, dust can assemble kindling and reach
The purpose of explosion；Simultaneously as heat principle of dynamics is learnt, which can be started rapidly
Come, its combined aural and visual alarm can be made to alarm by mercury formula contact switch, learns demonstration success, therefore, present invention automation
And intelligence degree is high, demonstration success rate is high, can broadcast the principle of dust explosion constantly and how to prevent dust explosion
Equal security knowledges.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is side view of the invention；
Fig. 3 is circuit control principle figure of the invention；
Fig. 4 is uninterrupted power supply circuit figure of the invention；
Fig. 5 is air compressor machine control principle drawing of the invention；
Fig. 6 is high-voltage pulses device control principle drawing of the invention；
Fig. 7 is voice announcer circuit diagram of the invention.
In figure: 1 uninterruptible power supply, 2 air compressor machines, 3 pressure switches, 4 check valves, 5 normally closed solenoid valves, 6 storage cylinders, 7 connect
Take over road, 8 demonstration device nozzles, 9 acrylic demonstration device cylinders, 10 high-voltage pulses devices, 11 pressure release cover boards, 12 mercury formula contacts
Switch, 13 clump weights, 14 combined aural and visual alarms, 15 voice announcers, 16 antinose-dive legs, 17 total power switch.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Herein
Described specific embodiment is only used to explain the present invention, is not intended to limit the present invention.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
The present invention provides a kind of full-automatic dust explosion demonstrators as shown in figs. 1-7, including uninterruptible power supply 1, sky
Press 2, storage cylinder 6, acrylic demonstration device cylinder 9, pressure release cover board 11, antinose-dive leg 16 and total power switch 17, it is described not between
Power-off source 1 is electrically connected by conducting wire and total power switch 17, is equipped with pressure switch 3, pressure relay on the air compressor machine 2
Device 3 and total power switch 17 are electrically connected, and the air compressor machine 2 is mounted on the inside of antinose-dive leg 16, and air compressor machine 2 passes through connection
Pipeline 7 is connected to the inlet end of check valve 4, the gas outlet of the check valve 4 by connecting line 7 respectively with normally closed solenoid valve 5
Air inlet be connected to the gas transmission end of storage cylinder 6, the normally closed solenoid valve 5 is connected to by connecting line 7 with demonstration device nozzle 8,
The bottom of acrylic demonstration device cylinder 9, the upper end installation of the acrylic demonstration device cylinder 9 is arranged in the demonstration device nozzle 8
There is high-voltage pulses device 10, the chip of high-voltage pulses device 10 and 555 is electrically connected, 17 electricity of 555 chips and total power switch
Property connection, the pressure release cover board 11 covers the upper end in acrylic demonstration device cylinder 9, and the pressure release cover board 11 is got over by cordage
It crosses antinose-dive leg 16 to connect with clump weight 13, mercury formula contact switch 12, the mercury formula is installed on the pressure release cover board 11
Contact switch 12 is electrically connected by conducting wire and combined aural and visual alarm 14, and the mercury formula contact switch passes through conducting wire and voice broadcast
Device electric connection, the combined aural and visual alarm 14 and voice announcer 15 are mounted on the upper end of antinose-dive leg 16.
The course of work: the dry starch of 200g is first poured into 9 lower part of acrylic demonstration device cylinder before demonstration and sprays demonstration device
Mouth 8 covers.The present invention is powered by uninterruptible power supply 1, when needing to demonstrate, is pressed total power switch 17 and is supplied by uninterruptible power supply 1
Electricity starts air compressor machine 2, and the gas that air compressor machine 2 exports gives storage cylinder 6 to supply by the road, after pressure value reaches preset value, pressure
Relay 3 disconnects automatically, and the work of air compressor machine 2 stops；Inside starts connection by the logic control circuit of core of 555 chips automatically
10 ignition discharge of high-voltage pulses device generates high tension spark, after logic control circuit can automatically turn on normally closed solenoid valve 5,1 second
Normally closed solenoid valve can be automatically closed；Compressed gas in storage cylinder 6 is transported to acrylic demonstration device cylinder 9 through connecting line 7
Gas is sprayed in demonstration device nozzle 8 at lower entrances, flour dry in bucket is blown afloat the powder to form very high concentrations by gas pressure
Dust clouds contacts initiation explosion with the electric spark that high-voltage pulses device 10 discharges；Gas expands against rapidly on demonstration device cylinder 9
The pressure release cover board 11 in portion moves upwards；Mercury inside the mercury formula contact switch 12 of 11 tail portion of pressure release cover board pre-installation is in counterweight
Block 13 pulls flowing, and the mercury that pressure release cover board 11 is dug in mercury formula contact switch 12 connects circuit, triggers combined aural and visual alarm
14 issue alarm signals, while triggering 15 broadcast device of the voice announcer casting formation of dust explosion, principle and how preventing, disappear
Except the voice courseware of accident generation etc., presentation process of the invention all realizes automation, reaches the purpose of analog demenstration.
As shown in figs. 4-7, electric control theory of the invention: the intelligent program-controlled dust explosion demonstrator, to ensure to act
It is accurate, therefore its electric control system uses with original high-voltage pulses device 10 and carries out 0-99 to pulse
It counts, and is decoded from its counting, take out the program number of needs.To drive dc amplifier, with motor type relay and by monostable
The movement of state circuit guard relay.It is precisely: after starting digital process in place after, and it is dynamic to light a fire without next step
Make, and is controlled after being reached simultaneously by the pressure signal of air reservoir and clock signal by AND gate.
It is specifically described: from power module to system power transmission after general supply power transmission, instrument is in " preparation " program.By " opening
It is dynamic " after, while being also " setting 0 ", instrument starts " counting " program.Also the delay procedure of monostable flipflop is started simultaneously
And starts air compressor machine 2 and start to pump gas pressurization.The delay is designed as 50-60s (adjustable), when the setting pressure for reaching needs
When 0.05Mpa, electric signal is issued, is sent into AND gate, it may be assumed that pressure, timing " 50 " starts solenoid valve when reaching, by monostable time delay
1 second, the starting " 1 second " of solenoid valve was blown into air into instrument, encounters high pressure by the mixture of starch and air that air is blown afloat
Detonation has occurred at this time in the open fire of electric discharge, has achieved the purpose that this instrument is demonstrated.The flame sprayed when detonation is let out instrument
Cover clamp 11 is thrown, and linked electric signal, and outflow electric signal is sent into next program, and converges with clock signal " 56 ", AND gate
Start voice broadcast.The end cycle when timing 99 arrives.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (3)
1. a kind of full-automatic dust explosion demonstrator, including uninterruptible power supply (1), air compressor machine (2), storage cylinder (6), acrylic are drilled
Show device cylinder (9), pressure release cover board (11), antinose-dive leg (16) and total power switch (17), it is characterised in that: the uninterrupted electricity
Source (1) is electrically connected by conducting wire and total power switch (17), and the air compressor machine (2) is mounted on the inside of antinose-dive leg (16),
And air compressor machine (2) is connected to by connecting line (7) with the inlet end of check valve (4), the gas outlet of the check valve (4) passes through company
Adapter tube road (7) is connected to the gas transmission end of the air inlet of normally closed solenoid valve (5) and storage cylinder (6) respectively, the normally closed solenoid valve (5)
It is connected to by connecting line (7) with demonstration device nozzle (8), the demonstration device nozzle (8) is arranged in acrylic demonstration device cylinder (9)
Bottom, the upper end of the acrylic demonstration device cylinder (9) is equipped with high-voltage pulses device (10), high-voltage pulses device
(10) it is electrically connected with 555 chips, 555 chips and total power switch (17) are electrically connected, pressure release cover board (11) Gai Ya
The upper end of gram force demonstration device cylinder (9), and the pressure release cover board (11) crosses antinose-dive leg (16) and clump weight by cordage
(13) it connects, mercury formula contact switch (12) is installed on the pressure release cover board (11), the mercury formula contact switch (12) is logical
It crosses conducting wire and combined aural and visual alarm (14) is electrically connected, the combined aural and visual alarm (14) and voice announcer (15) are mounted on cabinet branch
The upper end of frame (16).
2. a kind of full-automatic dust explosion demonstrator according to claim 1, it is characterised in that: open mercury formula contact
(12) are closed to be electrically connected by conducting wire and voice announcer (15).
3. a kind of full-automatic dust explosion demonstrator according to claim 1, it is characterised in that: on the air compressor machine (2)
It is equipped with pressure switch (3), pressure switch (3) and total power switch (17) are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351198.1A CN107038934B (en) | 2017-05-18 | 2017-05-18 | A kind of full-automatic dust explosion demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351198.1A CN107038934B (en) | 2017-05-18 | 2017-05-18 | A kind of full-automatic dust explosion demonstrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107038934A CN107038934A (en) | 2017-08-11 |
| CN107038934B true CN107038934B (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710351198.1A Active CN107038934B (en) | 2017-05-18 | 2017-05-18 | A kind of full-automatic dust explosion demonstrator |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110956887A (en) * | 2018-01-31 | 2020-04-03 | 孝感锐创机械科技有限公司 | Dust explosion simulation equipment |
| CN109147523B (en) * | 2018-09-26 | 2020-12-11 | 浙江新鸿检测技术有限公司 | Device for simulating dust explosion |
| CN111816042A (en) * | 2020-08-27 | 2020-10-23 | 中北大学 | Full-automatic dust explosion demonstration instrument |
| CN117423216A (en) * | 2023-12-11 | 2024-01-19 | 陕西省环境调查评估中心 | Factory building air detection device |
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|---|---|---|---|---|
| CN101726573A (en) * | 2009-11-30 | 2010-06-09 | 浙江工业大学 | Combustible gas explosion experiment system |
| JP2011197499A (en) * | 2010-03-23 | 2011-10-06 | Sumitomo Chemical Co Ltd | Dust explosion experience experimental device and dust explosion experience experimental method |
| CN105070167A (en) * | 2015-08-08 | 2015-11-18 | 郑州幼儿师范高等专科学校 | Dust explosion experimental device and experimental method |
| CN204945073U (en) * | 2015-09-30 | 2016-01-06 | 常熟理工学院 | A kind of dust fires proving installation |
| CN206148002U (en) * | 2016-06-24 | 2017-05-03 | 杨兆鑫 | Remote control dust explosion demonstration ware |
-
2017
- 2017-05-18 CN CN201710351198.1A patent/CN107038934B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726573A (en) * | 2009-11-30 | 2010-06-09 | 浙江工业大学 | Combustible gas explosion experiment system |
| JP2011197499A (en) * | 2010-03-23 | 2011-10-06 | Sumitomo Chemical Co Ltd | Dust explosion experience experimental device and dust explosion experience experimental method |
| CN105070167A (en) * | 2015-08-08 | 2015-11-18 | 郑州幼儿师范高等专科学校 | Dust explosion experimental device and experimental method |
| CN204945073U (en) * | 2015-09-30 | 2016-01-06 | 常熟理工学院 | A kind of dust fires proving installation |
| CN206148002U (en) * | 2016-06-24 | 2017-05-03 | 杨兆鑫 | Remote control dust explosion demonstration ware |
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| CN107038934A (en) | 2017-08-11 |
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Effective date of registration: 20190731 Address after: 300000 Tianjin Tanggu District Jintang Highway Xishun Xinyuan 3 2 Gates 302 Co-patentee after: Yang Kenan Patentee after: Feng Jinsheng Co-patentee after: Tianjin Tongchuang Safety Management Consulting Co., Ltd. Address before: 300451 Tianjin Tanggu District Jintang Highway Xishun Xinyuan 3 2 doors 302 Co-patentee before: Yang Kenan Patentee before: Feng Jinsheng Co-patentee before: Tianjin Tongxin Safety Technology Consulting Service Co., Ltd. |