CN112729887A - Safety protection equipment for explosion test - Google Patents
Safety protection equipment for explosion test Download PDFInfo
- Publication number
- CN112729887A CN112729887A CN202011575072.0A CN202011575072A CN112729887A CN 112729887 A CN112729887 A CN 112729887A CN 202011575072 A CN202011575072 A CN 202011575072A CN 112729887 A CN112729887 A CN 112729887A
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- sliding
- explosion
- plate
- stress
- sliding plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C8/00—Hand tools or accessories specially adapted for fire-fighting, e.g. tool boxes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses safety protection equipment for explosion test, which comprises two stress plates and a sliding plate which are arranged in parallel, wherein two short rods are rotatably arranged on each stress plate, one ends of the two short rods, far away from the stress plates, are connected with corresponding protection plates in a sliding manner, a pressure dividing spring is fixedly connected between the corresponding stress plate and the protection plates, the lower end of each stress plate is arranged on a low-resistance sliding groove and is provided with a plurality of pressure releasing holes in parallel, the upper end of each stress plate is provided with a vertical groove, the sliding plate is arranged in each vertical groove in a sliding manner, and the bottom of each vertical groove is provided with a signal receiver and a signal transmitter. The equipment for testing has the effects of automatic pressure division and pressure relief, is long in service life, can isolate fragments, dust and the like generated by explosion in the equipment, can protect the safety of testers, is convenient for the testers to collect substances after explosion, and is convenient for subsequent testing and analysis.
Description
Technical Field
The invention relates to the technical field of security and protection equipment, in particular to safety protection equipment for explosion test.
Background
China is equipped with comprehensive safety protection equipment such as telescopic sticks, explosion-proof shields and explosion-proof blankets in public places such as airports, high-speed rail stations, subway stations and the like so as to prevent people from being damaged by illegal activities by using instruments or flammable and explosive substances.
The safety protection equipment needs to be subjected to a series of tests to determine the improvement direction when being optimized and improved, the comparison of explosion characteristics, types, danger degree and the like of different objects also belongs to part of test contents, most of the existing test equipment is rigid open containers, structural damage is easily caused after multiple explosion tests, and in the explosion process, fragments scattered by the objects can fly from the openings of the containers and threaten surrounding instruments and personnel.
Disclosure of Invention
The invention aims to solve the defects that in the prior art, a rigid open type test container is easy to generate structural damage after multiple explosion tests, cannot prevent flying of object fragments and is dangerous, and provides safety protection equipment for explosion tests.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a safety protection equipment for explosion test, includes two atress boards and sliding plate of parallel arrangement, every all rotate on the atress board and install two quarter butts, and two quarter butts keep away from the one end of atress board and corresponding guard plate slip and link to each other, fixedly connected with bleeder spring between corresponding atress board and the guard plate, every the lower extreme of atress board is all installed on the low resistance spout and has seted up a plurality of pressure release holes in parallel, every perpendicular groove has all been seted up to the upper end of atress board, every the sliding plate has all been placed in all sliding in the perpendicular inslot, every signal receiver and signal receiver are all installed to the bottom in perpendicular groove, every signal receiver and signal receiver all electricity are connected with transceiver module.
Preferably, each sliding groove is formed in the upper end of each protection plate, a counterweight sliding block is arranged in each sliding groove in a sliding mode, and the two counterweight sliding blocks jointly draw the fireproof blanket.
Preferably, the top of each sliding plate is clamped with a fixing strip, and the fireproof blanket is movably arranged between the sliding plate and the fixing strip.
Preferably, the bottom of the sliding plate is a smooth arc structure with an opening facing downwards.
Preferably, a protective layer is adhered below the fireproof blanket and located between the two stress plates, and air outlets are formed in two ends of the fireproof blanket.
Preferably, the elasticity of the fireproof blanket is better than that of the protective layer, and the flame retardant material is filled in the protective layer.
Preferably, each stress plate is internally provided with a conductive coil, the conductive coil surrounds the outer side of the corresponding vertical groove, the conductive coil is electrically connected with the transceiver module, the conductive coil is electrically connected with a warning light, and each sliding plate is embedded with a magnetic sheet.
The invention has the beneficial effects that:
1. after detonating the object through ignition, two atress boards can receive huge drive force and move along the low resistance spout to reduce pressure, the fire blanket is by air current jack-up simultaneously, at this in-process, the fire blanket is in the explosion area directly over all the time, can be with isolated inside equipment such as the piece that the explosion produced, dust, can not only protect tester's safety, still make things convenient for the tester to collect the material after the explosion, thereby analysis explosion type, danger degree etc..
2. Through setting up partial pressure spring and quarter butt, when the atress board slides to the guard plate, partial pressure spring is compressed, turns into elastic potential energy with partly kinetic energy and stores, weakens the intensity of air current, and two quarter butts are located partial pressure spring's both sides respectively, guarantee the stability of atress board and partial pressure spring in the motion process.
3. Because the elasticity of the fireproof blanket is superior to that of the protective layer, the protective layer can be torn, so that the granular flame retardant material filled in the protective layer can be sprinkled out and cover an explosion area, the explosion strength of a tested object is reduced, the fireproof blanket is prevented from being lifted by airflow, in addition, an object with higher explosion strength can generate flame after explosion, and the protective layer also has the flame retardant effect.
4. Through setting up transceiver module, signal receiver and signal transmitter, reflex action through the sliding plate bottom surface, signal receiver can receive the constantly changing of light, intensity and the position change through light in the analysis unit interval, can obtain the ascending speed and the acceleration of sliding plate, thereby obtain the explosive strength, the contrast of the different tests of being convenient for, and the bottom of sliding plate is opening smooth arc structure down, can reduce the reflection number of times of signal on erecting the inslot wall, reduce the signal attenuation, effectively improve signal receiver received signal strength.
5. Through setting up conductive coil and magnetic sheet, when the sliding plate moves up fast, can produce electric current in the conductive coil, for parts power supplies such as transceiver module, warning light, connecting wire can all hide in the inside of device, need not connect with outside wire, can not appear the problem that the atress board connects the separation when receiving strong impact or high-speed motion, can reduce the fault rate of equipment, improve equipment's life.
6. The brightness of the warning lamp is in direct proportion to the flowing current, so that the explosion intensity can be roughly observed through the warning lamp, and particularly when a plurality of groups of explosion tests are carried out simultaneously, the explosion intensity can be conveniently compared.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of a safety protection device for explosion testing according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of a portion of the fire blanket and protective layer moving upward in embodiment 1 of the safety shield apparatus for explosion testing according to the present invention;
fig. 4 is a schematic structural diagram of embodiment 2 of a safety protection device for explosion testing according to the present invention;
fig. 5 is an enlarged view of fig. 4 at B.
In the figure: the device comprises a stress plate 1, a sliding plate 2, a low-resistance sliding groove 3, a pressure release hole 4, a transceiver module 5, a short rod 6, a limit sliding groove 7, a protection plate 8, a pressure division spring 9, a counterweight sliding block 10, a fireproof blanket 11, an exhaust port 1101, a fixing strip 12, a protective layer 13, a signal receiver 14, a signal transmitter 15, a warning light 16 and a conductive coil 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-3, a safety protection device for explosion test comprises two parallel stress plates 1 and a sliding plate 2, wherein the stress plate 1 and the sliding plate 2 are connected with a container (or the inner wall of a test bench, etc.) at the front and back sides to form an explosion space together, each stress plate 1 is rotatably provided with two short rods 6, one end of each short rod 6 far away from the stress plate 1 is connected with a corresponding protection plate 8 in a sliding manner, a pressure dividing spring 9 is fixedly connected between the corresponding stress plate 1 and the protection plate 8, the two short rods 6 are symmetrical and in a shape of 'eight' with respect to the pressure dividing spring 9, the lower end of each stress plate 1 is arranged on a low-resistance sliding groove 3 and is provided with a plurality of pressure releasing holes 4 in parallel, the upper end of each stress plate 1 is provided with a vertical groove, the sliding plate 2 is arranged in each vertical groove in a sliding manner, the bottom of each vertical groove is provided with a signal receiver 14 and a signal transmitter 15, each of the signal receiver 14 and the signal transmitter 15 is electrically connected to the transceiver module 5, the signal emitted by the signal transmitter 15 is an optical signal, and the signal receiver 14 can receive the continuous change of the light through the reflection action of the bottom surface of the sliding plate 2, that is, the continuous change of the sliding plate 2.
In this embodiment, a sliding groove is formed in the upper end of each protection plate 8, a counterweight sliding block 10 is slidably arranged in the sliding groove, and the two counterweight sliding blocks 10 jointly pull a fireproof blanket 11.
The top of each sliding plate 2 is clamped with a fixing strip 12, the fireproof blanket 11 is movably arranged between the sliding plate 2 and the fixing strip 12, and the fireproof blanket 11 cannot be subjected to large resistance when moving between the sliding plate 2 and the fixing strip 12.
The bottom of the sliding plate 2 is of a smooth arc structure with a downward opening, so that the reflection times of signals on the inner wall of the vertical groove can be reduced, the signal attenuation is reduced, and the signal intensity received by the signal receiver 14 is effectively improved.
A protective layer 13 is adhered below the fireproof blanket 11, the protective layer 13 is located between the two stress plates 1, and both ends of the fireproof blanket 11 are provided with air outlets 1101.
The elasticity of the fireproof blanket 11 is better than that of the protective layer 13, the protective layer 13 is filled with a flame retardant material, and the flame retardant material is granular and can cover a larger area.
The present embodiment can illustrate the functional principle thereof by the following operation modes: the front and back sides of the stress plate 1 and the sliding plate 2 are connected with a container (or the inner wall of a test bench, etc.), as shown by dotted lines in the figure, so that an explosion space is formed together, an article to be detonated is placed between the two stress plates 1, as shown in figure 1, then the two ends of the fireproof blanket 11 with the counterweight sliding blocks 10 are respectively placed into the sliding grooves, the fireproof blanket 11 is straightened under the action of gravity, at the moment, the fixing strips 12 are clamped at the upper end of the sliding plate 2, and the position of the fireproof blanket 11 is limited;
after an object is detonated by the detonating device, the two stress plates 1 can be subjected to huge driving force to move along the low-resistance sliding groove 3 to the direction of the protection plate 8, so that the pressure is reduced, meanwhile, the fireproof blanket 11 is jacked up by airflow, and the two ends of the fireproof blanket 11 drive the counterweight sliding blocks 10 to move upwards;
when the stress plate 1 slides to the protection plate 8, the partial pressure spring 9 is compressed, a part of kinetic energy is converted into elastic potential energy to be stored, the strength of airflow is weakened, and the two short rods 6 are respectively positioned on two sides of the partial pressure spring 9, so that the stability of the stress plate 1 and the partial pressure spring 9 in the movement process is ensured;
the air flow between the stress plate 1 and the protection plate 8 is greatly reduced and then exhausted through the air vents 1101 at the two ends of the fireproof blanket 11, and because the pressure release hole 4 and the air vents 1101 are smaller, objects such as fragments and the like after explosion cannot be ejected by flying;
when the deformation strength of the upward bulging of the fireproof blanket 11 is high due to the high-temperature and high-pressure gas generated after the test object explodes, the bending degrees of the fireproof blanket 11 and the protective layer 13 are as shown in fig. 3, because the elasticity of the fireproof blanket 11 is superior to that of the protective layer 13, the protective layer 13 can be torn, so that the granular flame retardant material filled in the protective layer can be spilled out and covers the explosion area, the explosion strength of the test object is reduced, the fireproof blanket is prevented from being lifted by airflow, in addition, the object with high explosion strength can generate flame after explosion, and the protective layer 13 also has the flame retardant effect;
the signal receiver 14 and the signal transmitter 15 are electrically connected with the transceiver module 5, the signal sent by the signal transmitter 15 is an optical signal, the signal receiver 14 can receive the continuous change of the light through the reflection action of the bottom surface of the sliding plate 2, the transceiver module 5 transmits the data to an external computer for receiving (the computer is not shown in the figure), the rising speed and the rising acceleration of the sliding plate 2 can be obtained by analyzing the intensity and the position change of the light in unit time, so that the explosion intensity is obtained, and the comparison of different tests is facilitated.
Example 2
Referring to fig. 4 to 5, the present embodiment is different from embodiment 1 in that: every atress board 1 is interior all to be equipped with conductive coil 17, and conductive coil 17 surrounds the outside corresponding vertical slot, and conductive coil 17 is connected with transceiver module 5 electricity, and conductive coil 17 electricity is connected with warning light 16, all inlays on every sliding plate 2 and is equipped with the magnetic sheet, and two magnetic poles of magnetic sheet distribute in vertical direction.
The present embodiment can illustrate the functional principle thereof by the following operation modes: the conductive coil 17, the transceiver module 5, the warning light 16, etc. form a closed loop, and according to the faraday's law of electromagnetic induction, when part of conductors in the closed loop do the motion of cutting the magnetic induction line in the magnetic field, induced current can be generated in the conductors, in this embodiment, the motion of the sliding plate 2 makes the position of the magnetic sheet and the position of the conductive coil 17 change relatively, so current can be generated in the conductive coil 17 to supply power to the transceiver module 5, the warning light 16, etc., the connecting wires of all the electric parts can be completely hidden in the device, and do not need to be connected with external wires, the problem that the joints of the stress plate 1 are separated when the stress plate is subjected to strong impact or high-speed motion can be avoided, the failure rate of the equipment can be reduced, and the;
because the size of the induced current is in direct proportion to the speed of the conductor cutting the magnetic induction line in the magnetic field, when the test object is detonated, the fireproof blanket 11 can drive the sliding plate 2 to move upwards quickly, the induced current in the closed loop is large, and when the test object is stable, the sliding plate 2 slides downwards under the action of gravity, the speed is slow, and the induced current in the closed loop is small;
the brightness of the warning lamp 16 is in direct proportion to the flowing current, so the explosion intensity can be roughly observed through the warning lamp 16, especially when a plurality of groups of explosion tests are carried out simultaneously, the intensity of the explosion can be conveniently compared, and when the sliding plate 2 slides downwards, the current in the closed loop can also enable the warning lamp 16 to emit light, therefore, in order to avoid interference, a voltage stabilizing diode or an NPN type triode is preferably added in the closed loop, and the power is supplied to the warning lamp 16 after the voltage at two ends of the warning lamp 16 reaches a certain intensity.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A safety protection device for explosion test comprises two stress plates (1) and a sliding plate (2) which are arranged in parallel, it is characterized in that two short rods (6) are rotatably arranged on each stress plate (1), and the one end that atress board (1) was kept away from in two quarter butts (6) slides with corresponding guard plate (8) and links to each other, fixedly connected with partial pressure spring (9) between corresponding atress board (1) and the guard plate (8), every the lower extreme of atress board (1) is all installed on low resistance spout (3) and has seted up a plurality of pressure release holes (4) in parallel, every perpendicular groove has all been seted up to the upper end of atress board (1), every sliding plate (2) have all been placed in all sliding in the perpendicular groove, every signal receiver (14) and signal transmitter (15) are all installed to the bottom in perpendicular groove, every signal receiver (14) and signal transmitter (15) all are connected with transceiver module (5) electrically.
2. The safety protection device for explosion tests according to claim 1, wherein the upper end of each protection plate (8) is provided with a sliding groove, a counterweight sliding block (10) is arranged in the sliding groove in a sliding mode, and a fireproof blanket (11) is jointly drawn by the two counterweight sliding blocks (10).
3. A safety apparatus for explosion testing according to claim 2, wherein a fixing strip (12) is clamped on the top of each sliding plate (2), and the fire blanket (11) is movably arranged between the sliding plate (2) and the fixing strip (12).
4. A safety apparatus for explosion testing according to claim 1, wherein the bottom of the sliding plate (2) is a smooth arc structure with an opening facing downwards.
5. A safety protection device for explosion test according to claim 2, wherein a protective layer (13) is adhered below the fire blanket (11), the protective layer (13) is located between the two stress plates (1), and both ends of the fire blanket (11) are provided with air vents (1101).
6. A safety apparatus for explosion testing according to claim 5, wherein the fire blanket (11) has an elasticity superior to that of the protective layer (13), the protective layer (13) being filled with a fire retardant material.
7. The safety protection device for the explosion test is characterized in that a conductive coil (17) is arranged in each stress plate (1), the conductive coil (17) surrounds the outer side of the corresponding vertical groove, the conductive coil (17) is electrically connected with the transceiver module (5), the conductive coil (17) is electrically connected with a warning lamp (16), and a magnetic sheet is embedded in each sliding plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011575072.0A CN112729887B (en) | 2020-12-28 | 2020-12-28 | Safety protection device for explosion test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011575072.0A CN112729887B (en) | 2020-12-28 | 2020-12-28 | Safety protection device for explosion test |
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| CN112729887A true CN112729887A (en) | 2021-04-30 |
| CN112729887B CN112729887B (en) | 2023-03-31 |
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| CN202011575072.0A Active CN112729887B (en) | 2020-12-28 | 2020-12-28 | Safety protection device for explosion test |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201093947Y (en) * | 2007-10-31 | 2008-07-30 | 周厚勇 | Explosion-proof blanket |
| WO2009099621A1 (en) * | 2008-02-05 | 2009-08-13 | Guy Leath Gettle | Blast effect mitigating assembly using aerogels |
| CN102879429A (en) * | 2012-10-11 | 2013-01-16 | 南京工业大学 | Testing system for gas explosion characteristic size effect |
| CN202870016U (en) * | 2012-10-11 | 2013-04-10 | 南京工业大学 | Testing system for gas explosion characteristic size effect |
| CN108627404A (en) * | 2018-08-03 | 2018-10-09 | 南京工业大学 | Test system and test method for explosion venting flame to induce steam cloud explosion |
| CN110567637A (en) * | 2019-09-17 | 2019-12-13 | 中北大学 | device for measuring temperature and pressure of transient flow field of explosion field |
| CN110849571A (en) * | 2019-12-03 | 2020-02-28 | 李治平 | Civil engineering structure explosion damage experiment platform |
| CN111947533A (en) * | 2020-08-19 | 2020-11-17 | 宁波葆尔新材料有限公司 | Early-warning fireproof explosion-proof blanket and processing technology thereof |
-
2020
- 2020-12-28 CN CN202011575072.0A patent/CN112729887B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201093947Y (en) * | 2007-10-31 | 2008-07-30 | 周厚勇 | Explosion-proof blanket |
| WO2009099621A1 (en) * | 2008-02-05 | 2009-08-13 | Guy Leath Gettle | Blast effect mitigating assembly using aerogels |
| CN102879429A (en) * | 2012-10-11 | 2013-01-16 | 南京工业大学 | Testing system for gas explosion characteristic size effect |
| CN202870016U (en) * | 2012-10-11 | 2013-04-10 | 南京工业大学 | Testing system for gas explosion characteristic size effect |
| CN108627404A (en) * | 2018-08-03 | 2018-10-09 | 南京工业大学 | Test system and test method for explosion venting flame to induce steam cloud explosion |
| CN110567637A (en) * | 2019-09-17 | 2019-12-13 | 中北大学 | device for measuring temperature and pressure of transient flow field of explosion field |
| CN110849571A (en) * | 2019-12-03 | 2020-02-28 | 李治平 | Civil engineering structure explosion damage experiment platform |
| CN111947533A (en) * | 2020-08-19 | 2020-11-17 | 宁波葆尔新材料有限公司 | Early-warning fireproof explosion-proof blanket and processing technology thereof |
Non-Patent Citations (1)
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| 司荣军等: "瓦斯煤尘爆炸抑隔爆技术研究进展", 《煤矿安全》 * |
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Effective date of registration: 20230217 Address after: 526100 Kengtang Town, Gaoyao District, Zhaoqing City, Guangdong Province Applicant after: Guangdong Nanhong Chemical Co.,Ltd. Address before: 518116 room 111, 1st floor, building D, No.49 Lixin Road, danzhutou Industrial Zone, Nanwan street, Longgang District, Shenzhen City, Guangdong Province Applicant before: Dong Dewu |
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