CN115753889A - Experimental device for research temperature and pressure explosive building internal explosion energy release mechanism - Google Patents
Experimental device for research temperature and pressure explosive building internal explosion energy release mechanism Download PDFInfo
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- CN115753889A CN115753889A CN202211396967.7A CN202211396967A CN115753889A CN 115753889 A CN115753889 A CN 115753889A CN 202211396967 A CN202211396967 A CN 202211396967A CN 115753889 A CN115753889 A CN 115753889A
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Abstract
The invention discloses an experimental device for researching an explosion energy release mechanism in a warm-pressing explosive building, which comprises an experimental main body and a test system, wherein the experimental main body is provided with a test interface; the experimental body comprises: the sensor auxiliary fixing mechanism comprises a vertical sensor support arranged in a sector mode around the central point of the main building and a mounting seat arranged on the main building; the test system comprises: the device comprises a shock wave test unit, a heat effect test unit, a quasi-static pressure test unit and an oxygen consumption test unit. According to the invention, the rectangular closed structure is arranged, the sensor auxiliary fixing mechanism is arranged to be matched with a testing system built by a rectangular building so as to reflect the real energy release process and the propagation process of the damaged element under the limited space constraint effect and the internal explosion of the thermal-pressure explosive, and the temperature and heat flow density change characteristics of each stage are recorded, so that the research on the propagation rule of multiple damaged elements becomes feasible.
Description
Technical Field
The invention relates to the technical field of explosion and engineering protection, in particular to an experimental device for researching an explosion energy release mechanism in a warm-pressure explosive building.
Background
The warm-pressing explosive consists of high explosive, high-heat-value metal powder and other additives, and mainly utilizes high-strength shock waves and temperature to destroy targets. For a closed space, shock waves generated by explosion of the warm-pressing explosive cannot be immediately diffused outwards due to space limitation, the shock waves can be reflected on the wall surface for multiple times, and incident waves and reflected waves can be mutually superposed and then act on the wall surface repeatedly, so that the overpressure peak value in the space is greatly improved, and the duration is also obviously prolonged; secondly, the explosive product gas generated by the warm-pressing explosive cannot expand and diffuse in time and is uniformly distributed in a closed space, so that quasi-static pressure with long duration and relatively stable size is formed; finally, the after-burning effect of the warm-pressure explosive can generate certain influence on the propagation process of the explosion shock wave, the reflected pressure of the wall surface of the shock wave and the quasi-static pressure, so that the damage mode of the warm-pressure explosive in the closed space is under the coupling action of various damage elements.
And (4) building a rectangular building model, and combining a protective door structure to form a rectangular building closed space. And testing damage elements such as explosion shock waves, temperature, oxygen consumption, quasi-static pressure and the like in the closed space to obtain the time-space distribution and the propagation rule of the warm-pressing explosive in the closed space, and further analyzing the explosion energy release process of the warm-pressing explosive in the closed environment and the propagation rule of the damage elements. However, at present, no model for researching the explosion energy release process and the propagation rule of the damaged element in the temperature-pressure explosive closed space exists, most of the models only research the shock wave, the temperature or the quasi-static pressure, the coupling analysis cannot be carried out, and the propagation rule of the temperature-pressure explosive with multiple damaged elements cannot be well described.
Disclosure of Invention
The invention aims to provide an experimental device for researching an explosion energy release mechanism in a warm-pressure explosive building, aiming at the defects of the existing test device and test technology for the explosion energy release process and the propagation of multiple damage elements of the warm-pressure explosive, and provides a rectangular building device for researching the explosion energy release process and the propagation rule of the warm-pressure explosive, which can be used for carrying out the warm-pressure explosive explosion tests with different equivalent gradients and different formulas.
The invention relates to an experimental device for researching an explosion energy release mechanism in a warm-pressure explosive building, which is characterized in that: an experiment main body and a test system;
the experimental subject, comprising: the sensor auxiliary fixing mechanism comprises a vertical sensor support arranged in a sector mode around the central point of the main building and mounting seats arranged on the ground, side walls and the top of the main building;
the test system comprises:
the shock wave testing unit is used for acquiring pressure and shock wave speed data of air shock waves in the experiment main body;
the thermal effect testing unit is used for acquiring the temperature of a fireball generated by explosion in the thermal pressure explosive when the fireball moves in the experiment main body and deducing the fireball evolution process in the near detonation region;
the pressure testing unit is used for acquiring quasi-static pressure data in the experiment main body;
and the oxygen consumption test unit is used for measuring the oxygen consumption percentage of the fuel particles at the position in the shock wave propagation process.
Further, the main building is a rectangular building.
Further, the shock wave test unit includes:
the air overpressure sensor adopts a pen-shaped free field sensor and is arranged on the vertical sensor bracket, and the needle points of the pen-shaped free field sensor point to the position of the explosive core;
the ground pressure sensor and the side wall surface pressure sensor adopt rod-type PCB pressure sensors, the rod-type PCB pressure sensors are arranged in the mounting seat, and the sensitive surfaces of the rod-type PCB pressure sensors are attached to the ground or the wall surface of the main building;
and thin silicone grease is coated on the pen-shaped free field sensor and the rod-type PCB pressure sensor.
Furthermore, the number of the pen-shaped free field sensors is more than or equal to 5.
Furthermore, the number of the rod type PCB pressure sensors is more than or equal to 17, 7 of the rod type PCB pressure sensors are arranged on the ground of the main building, and the rest rod type PCB pressure sensors are arranged on the two side wall surfaces of the main building.
Further, the thermal effect test unit includes:
the contact type thermocouple is fixed on the vertical sensor bracket and is used for capturing the temperature change characteristics of each stage of the explosive energy release of the pressure explosive within the explosion equivalent range;
and the heat flow meter is fixed on the vertical sensor bracket and is used for capturing the heat flow density of each stage of the pressure explosive in the explosion equivalent range.
Furthermore, the pressure test unit comprises quasi-static pressure sensors, the number of the quasi-static pressure sensors is more than or equal to 2, the quasi-static pressure sensors are arranged in the round tank type mounting seat and are mounted on walls on two sides, and planes of the quasi-static pressure sensors are attached to the walls.
Furthermore, the oxygen consumption test unit comprises two oxygen concentration sensors which are respectively and fixedly arranged on the axis of the ground of the main building and at the corner position.
Furthermore, a sealing rubber strip is arranged at the frame of the protective door.
Further, the mounting seat is of a round tank type.
Has the advantages that: compared with the prior art, the invention has the advantages that the rectangular closed structure is arranged, the sensor auxiliary fixing mechanism is arranged, the testing system constructed by the rectangular building is matched, so that the real energy release process and the transmission process of the damage elements under the internal explosion of the thermal-pressure explosive are reflected under the limited space constraint effect, the temperature and heat flow density change characteristics of each stage are recorded, the research on the transmission rule of multiple damage elements becomes feasible, and the basis is provided for the internal explosion energy release process and the transmission rule of the damage elements of the thermal-pressure explosive.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1-1 is a schematic view of the overall structure of the present invention.
Fig. 1-2 are schematic layout views of auxiliary fixing mechanisms of rectangular building sensors.
Fig. 2 is a schematic diagram of pen-shaped free field sensor arrangement in a main building.
Fig. 3 is a schematic diagram of the ground layout of the rod-shaped PCB sensor in the main building.
Fig. 4 is a schematic diagram of the arrangement of the wall surface of the rod-shaped PCB sensor in the main building.
FIG. 5 is a schematic diagram of the evolution process of overpressure time course of air shock wave in a rectangular building for a warm-pressure implosion test.
FIG. 6 is a schematic diagram of the evolution process of ground pressure time course in a rectangular building of a warm-pressure implosion test.
Fig. 7 is a schematic diagram of the evolution process of the pressure time course of the side wall surface of the rectangular building in the warm-pressing implosion test.
Fig. 8 is a thermocouple temperature test result of the warm-pressure implosion test.
FIG. 9 is a graph showing the change in oxygen concentration in the warm-pressure implosion test.
In the figure: 1. building a main body; 2. a protective door; 3. a vertical sensor mount; 4. a round can type mounting base; 5. a rod-type PCB pressure sensor; 6. a pen-shaped free-field sensor; 7. a heat flow meter; 8. a quasi-static pressure sensor; 9. a thermocouple temperature sensor; 10. an oxygen concentration sensor; 11. and (4) popping.
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.
Referring to fig. 1-4, an experimental apparatus for studying an explosion energy release mechanism in a thermal-pressure explosive building comprises: an experiment main body and a test system;
the experimental subject, comprising: the main part building 1 of rectangle with set up guard gate 2 on main part building 1, main part building 1 adopts reinforced concrete to pour and forms, and its inside is equipped with a plurality of sensor auxiliary fixing mechanism around the center, the sensor auxiliary fixing mechanism is including winding vertical sensor support 3 that the central point of main part building 1 is fan-shaped arranges, set up in the round tank formula mount pad 4 at 1 ground of main part building, side wall, top. PVC pipelines for communication data cables of the sensors to pass through are reserved on the ground and the wall of the main building 1. And sealing rubber strips are arranged at the frame of the protective door 2, the sealing rubber strips are used for sealing before detonation, and the pipelines communicated with the outside are sealed by the rubber strips after being connected with test wires, so that the closed space formed by the main building 1 and the protective door 2 is used for experiments.
The test system comprises: the device comprises a shock wave test unit, a thermal effect test unit, a pressure test unit and an oxygen consumption test unit.
The shock wave test unit is mainly used for collecting pressure and shock wave speed data of air shock waves in the experiment main body. Including air overpressure sensors, ground pressure sensors, and side wall pressure sensors.
The air overpressure sensor adopts a pen-shaped free field sensor 6, and converts collected stress signals into electric signals for recording and storing. The pen-shaped free field sensors 6 are not less than 5 in number, are distributed in a fan shape around the center of the main building 1, are arranged on the vertical sensor support 3, and the needle points of the sensors point to the positions of the explosive cores 11. The pen-shaped free field sensor 6 is a high-response-frequency sensor, has response time within 1us and sampling frequency of 1MHz/s, is used for recording time-course changes of air shock wave pressure in a tunnel and in a free field space in the explosion and energy release process of the thermal-pressure explosive, has a measuring range of 0.34MPa-3.4MPa, and can acquire a time-course curve of the shock wave with wave speed of 350-2000 m/s.
The ground pressure sensor and the side wall surface pressure sensor adopt rod type PCB pressure sensors 5, collected mechanical signals are converted into electric signals, and recording and storage are carried out. The rod type PCB pressure sensor 5 is arranged in the round tank type mounting seat 4, and the sensitive surface of the rod type PCB pressure sensor is attached to the ground or the wall surface of the main building 1. The number of the PCB pressure sensors is not less than 17, 17 PCB pressure sensors are adopted in the embodiment, 7 of the PCB pressure sensors are distributed and installed on the ground of the rectangular main building 1, and the rest 10 strut type PCB pressure sensors 5 are installed on the two side walls of the rectangular main building 1. The rod type PCB pressure sensor 5 is a high-response frequency sensor, the response time is within 1us, the sensor range is between 0.34MPa and 6.8MPa, and the post-combustion effect generated by fuel particles under the restriction action of the ground and the wall surface of the tunnel can be measured.
The pen-shaped free field sensor 6 and the rod-type PCB pressure sensor 5 are coated with thin silicone grease which is used for isolating instantaneous high temperature carried by an explosion fireball, so that the pen-shaped free field sensor 6 and the rod-type PCB pressure sensor 5 are in working temperature intervals.
The thermal effect testing unit is mainly used for collecting the temperature of a fireball generated by explosion in the warm-pressure explosive when the fireball moves in the experiment main body and deducing the fireball evolution process of the near region of detonation. Including contact thermocouple temperature sensor 9 and heat flow meter 7. The thermocouple temperature sensor 9 is fixedly arranged on the vertical sensor bracket 3 and is used for capturing the temperature change characteristics of each stage of the explosive energy release of the pressure explosive within the explosion equivalent range; the heat flow meter 7 is fixed on the vertical sensor support 3, and captures the heat flow density of each stage of the pressure explosive in the explosion equivalent range.
The quasi-static pressure test unit comprises quasi-static pressure sensors 8, the number of the quasi-static pressure sensors is more than or equal to 2, the quasi-static pressure sensors are arranged in the round tank type mounting seat 4 and are mounted on walls on two sides, and planes of the quasi-static pressure sensors 8 are attached to the walls and used for collecting quasi-static pressure data in the experiment main building 1.
The oxygen consumption test unit adopts two oxygen concentration sensors 10 which are respectively fixedly arranged on the axis of the ground of the main building 1 and at the corner position, and measures the oxygen consumption percentage of fuel particles at the position in the shock wave propagation process.
The experiment device for researching the internal explosion energy release process of the warm-pressure explosive and the propagation rule of multiple damaged elements is characterized in that the internal size of a main building 1 of the experiment device is 3.4m.2.4m.2.2m, the thickness of a protective door is 0.1m, and the cross section size is 1.6m.0.9m. The vertical sensor support inside the main building 1 is distributed in an involute mode at the position of 0.8m around the central point, and the distance is increased by 0.2m in sequence. The round tank type mounting seats 4 are respectively pre-buried on the axes and the diagonal lines of the ground and the wall surface, the projection positions of the explosion centers 11 on the axes are distributed at intervals of 0.5m, the point positions on the diagonal lines are distributed at intervals of 0.4m at the positions of 0.8m of the projection positions of the explosion centers 11, the measuring points on the side wall surface are distributed at intervals of 0.5m along the axes at the projection positions of the explosion centers 11, and all the round tank type mounting seats 4 are connected with PVC pipes. A pen-shaped free field sensor 6 is arranged on the vertical sensor support 3, and the distance from the nearest to the farthest is respectively as follows: 3.4MPa,3.4MPa and 1.7MPa. Rod-type PCB pressure sensor 5 has been installed at ground and pre-buried jar formula mount pad 4 of side wall, and the rod-type PCB pressure sensor 5's in ground field range is respectively: 6.9MPa,3.4MPa, 1.38MPa, and the measuring ranges of the rod-type PCB pressure sensors 5 on the two side wall surfaces are respectively as follows: 3.4MPa,3.4MPa 3.4MPa,3.4 MPa. A platinum rhodium wire thermocouple temperature sensor 9 and a heat flow meter 7 are fixed to all the vertical sensor holders 3 at the same time. 2 oxygen concentration sensors 10 are arranged inside the rectangular main body building 1 and are respectively positioned at the middle points of the bottoms of the two side walls. After the test system is debugged, temperature-pressure explosion tests with the drug quantities of 100g, 150g, 300g, 400g and 500g are carried out, and partial test results are shown in figures 5-9. The real energy release process under the condition of explosion in the thermal-pressure explosive under the constraint action of limited space can be seen by combining the change characteristics of the oxygen concentration, the pressure time-course curve and the temperature time-course curve. The rectangular building test device provided by the invention is proved to be effective.
According to the invention, the sealing performance of the rectangular main building 1 is greatly improved according to the sealing mode of the protective door 2 and the adopted round tank type mounting seat 4, and an explosion test in a sealed space can be carried out. All data wires wrap through the cable protection tube in the experimental device, and are fixed with the vertical support through the Teflon adhesive tape, so that signal fluctuation caused by shock wave disturbance of the wires is prevented.
The invention carries out various explosion experiments of different equivalent weights, different temperature and pressure explosive formulas and zero oxygen balance around the rectangular main body building 1, and can research the propagation rule of explosion damage elements in the temperature and pressure explosive in the rectangular building from multiple aspects.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An experimental device for researching an explosion energy release mechanism in a warm-pressing explosive building is characterized in that: comprises an experiment main body and a test system;
the experimental subject, comprising: the sensor auxiliary fixing mechanism comprises a vertical sensor support arranged in a sector mode around the central point of the main building and mounting seats arranged on the ground, side walls and the top of the main building;
the test system comprises:
the shock wave testing unit is used for acquiring pressure and shock wave speed data of air shock waves in the experiment main body;
the thermal effect testing unit is used for acquiring the temperature of a fireball generated by explosion in the thermal pressure explosive when the fireball moves in the experiment main body and deducing the fireball evolution process in the near detonation region;
the quasi-static pressure test unit is used for acquiring quasi-static pressure data in the experiment main body;
and the oxygen consumption test unit is used for measuring the oxygen consumption percentage of the fuel particles at the position in the shock wave propagation process.
2. The experimental device for researching the explosion energy release mechanism in the warm-pressure explosive building according to claim 1 is characterized in that: the main building is a rectangular building.
3. The experimental device for researching the explosion energy release mechanism in the warm-pressure explosive building according to claim 1 is characterized in that: the shock wave test unit includes:
the air overpressure sensor adopts a pen-shaped free field sensor and is arranged on the vertical sensor bracket, and the needle points of the pen-shaped free field sensor point to the position of the explosive core;
the ground pressure sensor and the side wall surface pressure sensor adopt rod-type PCB pressure sensors, the rod-type PCB pressure sensors are arranged in the mounting seat, and the sensitive surfaces of the rod-type PCB pressure sensors are attached to the ground or the wall surface of the main building;
and thin silicone grease layers are coated on the pen-shaped free field sensor and the rod-type PCB pressure sensor.
4. The experimental device for researching the explosion energy release mechanism in the warm-pressure explosive building according to claim 3 is characterized in that: the number of the pen-shaped free field sensors is more than or equal to 5.
5. The experimental device for researching the explosion energy release mechanism in the warm-pressure explosive building according to claim 3 is characterized in that: the number of the rod type PCB pressure sensors is more than or equal to 17, 7 of the rod type PCB pressure sensors are arranged on the ground of the main building, and the rest rod type PCB pressure sensors are arranged on the side wall surfaces of two sides of the main building.
6. The experimental device for researching the explosion energy release mechanism in the warm-pressure explosive building according to claim 1 is characterized in that: the thermal effect test unit includes:
the contact type thermocouple is fixed on the vertical sensor bracket and is used for capturing the temperature change characteristics of each stage of the explosive energy release of the pressure explosive within the explosion equivalent range;
and the heat flow meter is fixed on the vertical sensor bracket and is used for capturing the heat flow density of each stage of the pressure explosive in the explosion equivalent range.
7. The experimental device for researching the explosion energy release mechanism in the warm-pressure explosive building according to claim 1 is characterized in that: the quasi-static pressure test unit comprises a quasi-static pressure sensor, the quasi-static pressure sensor is arranged in the round tank type mounting seat and is mounted on walls on two sides, and the plane of the quasi-static pressure sensor is attached to the walls.
8. The experimental device for researching the explosion energy release mechanism in the warm-pressure explosive building according to claim 1 is characterized in that: the oxygen consumption test unit comprises two oxygen concentration sensors which are respectively and fixedly arranged on the axis of the ground of the main building and at the corner position.
9. The experimental device for researching the explosion energy release mechanism in the warm-pressure explosive building according to claim 1 is characterized in that: and a sealing rubber strip is arranged at the frame of the protective door.
10. The experimental device for researching the explosion energy release mechanism in the warm-pressure explosive building according to claim 1 is characterized in that: the mounting seat is of a round tank type.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117783206A (en) * | 2024-02-27 | 2024-03-29 | 北京理工大学 | Test system and method for evaluating warm-pressing explosive function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558118A (en) * | 2013-10-11 | 2014-02-05 | 西安近代化学研究所 | Internal explosion experiment based test method for quantitative evaluation on thermobaric effect of thermobaric explosive |
| CN104568612A (en) * | 2014-11-28 | 2015-04-29 | 西安近代化学研究所 | Shrink ratio equivalent test model for explosion effect in warship cabin |
| CN105403358A (en) * | 2015-10-22 | 2016-03-16 | 中国兵器工业试验测试研究院 | Shock-wave pressure-sensor on-site inspection and sorting method |
| CN106383142A (en) * | 2016-09-09 | 2017-02-08 | 西安近代化学研究所 | Device for testing explosion and propagation characteristics of explosives |
| CN109975356A (en) * | 2019-04-16 | 2019-07-05 | 西安近代化学研究所 | Explosion shock wave pressure and the controllable combined loading test method of quasi- static pressure in a kind of |
| CN112285159A (en) * | 2020-09-24 | 2021-01-29 | 南京理工大学 | Method for measuring instantaneous oxygen concentration for explosive explosion suffocation effect evaluation |
| CN114923658A (en) * | 2022-05-18 | 2022-08-19 | 南京理工大学 | Tunnel device for researching shock wave propagation and underground structure dynamic response |
-
2022
- 2022-11-09 CN CN202211396967.7A patent/CN115753889A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558118A (en) * | 2013-10-11 | 2014-02-05 | 西安近代化学研究所 | Internal explosion experiment based test method for quantitative evaluation on thermobaric effect of thermobaric explosive |
| CN104568612A (en) * | 2014-11-28 | 2015-04-29 | 西安近代化学研究所 | Shrink ratio equivalent test model for explosion effect in warship cabin |
| CN105403358A (en) * | 2015-10-22 | 2016-03-16 | 中国兵器工业试验测试研究院 | Shock-wave pressure-sensor on-site inspection and sorting method |
| CN106383142A (en) * | 2016-09-09 | 2017-02-08 | 西安近代化学研究所 | Device for testing explosion and propagation characteristics of explosives |
| CN109975356A (en) * | 2019-04-16 | 2019-07-05 | 西安近代化学研究所 | Explosion shock wave pressure and the controllable combined loading test method of quasi- static pressure in a kind of |
| CN112285159A (en) * | 2020-09-24 | 2021-01-29 | 南京理工大学 | Method for measuring instantaneous oxygen concentration for explosive explosion suffocation effect evaluation |
| CN114923658A (en) * | 2022-05-18 | 2022-08-19 | 南京理工大学 | Tunnel device for researching shock wave propagation and underground structure dynamic response |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117783206A (en) * | 2024-02-27 | 2024-03-29 | 北京理工大学 | Test system and method for evaluating warm-pressing explosive function |
| CN117783206B (en) * | 2024-02-27 | 2024-05-31 | 北京理工大学 | Test system and method for evaluating warm-pressing explosive function |
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