CN114166080A - Slow-baking test equipment and method for miniature initiating explosive device - Google Patents
Slow-baking test equipment and method for miniature initiating explosive device Download PDFInfo
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- CN114166080A CN114166080A CN202111463807.5A CN202111463807A CN114166080A CN 114166080 A CN114166080 A CN 114166080A CN 202111463807 A CN202111463807 A CN 202111463807A CN 114166080 A CN114166080 A CN 114166080A
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- 238000012360 testing method Methods 0.000 title claims abstract description 73
- 239000002360 explosive Substances 0.000 title claims abstract description 53
- 230000000977 initiatory effect Effects 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims description 14
- 239000010410 layer Substances 0.000 claims abstract description 53
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 32
- 238000004321 preservation Methods 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000011241 protective layer Substances 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 4
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013497 data interchange Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
- F42D5/045—Detonation-wave absorbing or damping means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to the technical field of mechanical manufacturing, in particular to a micro initiating explosive device slow-baking test device. Including insulation can, experimental frock, circulating fan, window, terminal box, collection equipment, video monitor, switch board, temperature sensor and experimental test sensor, experimental frock is arranged in the insulation can, circulating fan and window are arranged in on the insulation can, experimental test sensor is arranged in around experimental frock, collection equipment, video monitor and switch board pass through the terminal box and are connected with the insulation can. The heat preservation box body is divided into four layers, a protective layer and a heat preservation layer are arranged in and outside the heat preservation box body, the explosion-proof layer is attached to the heat preservation layer, a heating layer is arranged between the heat preservation layer and the gas circulation layer, and air heated by the heating layer uniformly circulates into the box body through the axial flow fan. Compared with the existing slow baking equipment, the invention has the advantages that the measurement precision, the reliability, the use function and the service life are greatly improved. The burden of the measuring personnel is reduced, and the purpose of high-efficiency and accurate measurement is achieved.
Description
Technical Field
The invention relates to the technical field of machine manufacturing, in particular to a slow baking test device and method for a miniature initiating explosive device.
Background
The thermal safety performance of the initiating explosive device is an important content for researching weapon safety, the slow baking test is an effect for simulating the generation of accidental thermal stimulation during the manufacturing, transportation, storage and use processes of the initiating explosive device and energetic materials thereof, technical basis is provided for the design, use and storage of the initiating explosive device, and the test is always valued by various military and strong countries.
The existing slow-baking test equipment consists of an incubator, a temperature circulating system, a control system and a temperature sensor. The control system compares the measured temperature of the heat insulation box with the set temperature to adjust the operation of the heater, and the axial flow fan inside the control system is started to adjust the uniformity of the temperature field in the oven. The existing insulation can does not have the condition for destroying the initiating explosive devices.
The slow baking equipment on the current market is used for testing, and has the following defects: the function and condition for destroying the initiating explosive devices in place are not provided; the temperature rise rate adjustment range is narrow; the explosion-proof performance can not meet the requirement.
Aiming at the defects, the invention aims to design a slow baking test system to meet the requirements of the micro initiating explosive device on different temperature rise rates in different time periods in one test; when the initiating explosive device is subjected to slow baking test and is not subjected to self-explosion, the initiating explosive device can be destroyed on site without moving the product; the test equipment is mainly applied to the test of initiating explosive devices and has the explosion-proof and explosion-proof functions of corresponding levels.
Disclosure of Invention
Technical problem to be solved by the invention
The invention designs a slow baking test device and method for a miniature initiating explosive device, which aim to meet the requirements of the miniature initiating explosive device on different temperature rise rates in different time periods in one test.
Technical scheme adopted by the invention for solving technical problem
The utility model provides a miniature initiating explosive device is experimental equipment of baking slowly, includes insulation can, experimental frock, circulating fan, window, terminal box, collection equipment, video monitor, switch board, temperature sensor and experimental test sensor, experimental frock is arranged in the insulation can, circulating fan and window are arranged in on the insulation can, experimental test sensor is arranged in around experimental frock, collection equipment, video monitor and switch board pass through the terminal box and are connected with the insulation can.
Furthermore, the heat preservation box body is divided into four layers, a protective layer, a heat preservation layer, an explosion-proof layer and a heating layer are respectively arranged outside and inside the heat preservation box body, the explosion-proof layer is attached to the heat preservation layer, and the heating layer is arranged between the heat preservation layer and the gas circulation layer.
Furthermore, the protective layer is made of 304 stainless steel, the heat insulation layer is made of asbestos, and the explosion-proof layer is made of 5mm steel plates.
Furthermore, the zone of heating adopts electric heating pipe, and the heating pipe is laid all around to the box, and 3 heating pipes of 0.5kW are laid per square meter to the heating pipe.
Furthermore, a horizontal floor is arranged at the center of the bottom of the box body, and mounting holes are formed in the floor so as to adapt to different initiating explosive device tools.
Furthermore, windows are arranged on two sides of the heat preservation box and are provided with explosion-proof glass.
A slow baking test method for a miniature initiating explosive device comprises the following operation steps:
1) manufacturing an explosion-proof insulation can, wherein the insulation can is divided into four layers, a box body shell, an explosion-proof layer, a heating layer and an airflow circulation layer, and accessories such as a threading hole, a wire groove, illumination, a junction box, an inspection window, a video recording window and the like are reserved according to the volume of the box body;
2) manufacturing an initiating explosive device test tool, wherein the test tool comprises an initiating explosive device fixing tool, an initiating explosive device blasting evidence finding plate, a sensor positioning tool and a destroying groove;
3) the temperature control system and the parameter acquisition system are configured, the control system is programmed through a PLC, the touch screen performs man-machine interaction, the redundant control sensor feeds back and adjusts the temperature, closed-loop control is integrally realized, and the temperature rise rate can be set in a segmented manner according to slow baking processes of different initiating explosive devices;
4) and after the slow baking is finished, calculating the heating rate in the slow baking oven in a time interval from the beginning of the test, the average value, the maximum value, the minimum value, the stable time interval and the like of the temperature stable phase according to the recorded data, calculating the abnormal temperature value and the abnormal temperature time caused by the ignition of the initiating explosive device in the stable time interval, and finally outputting a test report.
Advantageous effects obtained by the present invention
Compared with the existing slow baking equipment, the equipment of the invention has greatly improved measurement precision, measurement reliability, use function and service life. The burden of the measuring personnel is reduced, and the purpose of high-efficiency and accurate measurement is achieved.
The requirements of the micro initiating explosive device on different temperature rising rates in different time periods in one test are met, and when the initiating explosive device is subjected to slow baking test and is not subjected to self-explosion, the product can be destroyed on site without moving; the test equipment is mainly applied to the test of initiating explosive devices and has the explosion-proof and explosion-proof functions of corresponding levels.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1: structure diagram of slow baking test equipment;
wherein: 1-insulation box, 2-test tool, 3-circulating fan, 4-window, 5-junction box, 6-acquisition equipment, 7-video monitor, 8-control cabinet, 9-heating pipe, 10-temperature control sensor and 11-test sensor.
Detailed Description
The design of the slow baking test equipment for the miniature initiating explosive device is completed by the following steps:
the manufacturing method comprises the following steps that firstly, an explosion-proof insulation can is manufactured, the insulation can is divided into four layers, a box body shell, an explosion-proof layer, a heating layer and an airflow circulation layer are reserved, and accessories such as a threading hole, a wire groove, an illumination device, a junction box, an inspection window and a video recording window are reserved according to the volume of the box body;
and step two, manufacturing an initiating explosive device test tool, wherein the test tool comprises an initiating explosive device fixing tool, an initiating explosive device blasting evidence board, a sensor positioning tool and a destroying groove.
And step three, configuring a temperature control system and a parameter acquisition system, wherein the control system is programmed through a PLC (programmable logic controller), the touch screen is used for man-machine interaction, the redundant control sensor is used for feeding back and adjusting the temperature, the closed-loop control is integrally realized, and the temperature rise rate can be set in a segmented manner according to the slow baking process of different initiating explosive devices. According to the process requirements, the acquisition system sets acquisition rate and acquisition time, monitors and stores the test parameters of the initiating explosive device in real time, and simultaneously monitors and records whether the state of the initiating explosive device changes at different temperatures or not by the monitoring system;
and step four, data processing software is used for acquiring measurement parameters after the slow baking is finished, drawing a measurement curve, calculating the temperature rise rate in the slow baking oven in a time interval from the beginning of the test, the average value, the maximum value, the minimum value, the stable time interval and the like of the temperature stable phase according to the recorded data after the test is finished, calculating the abnormal temperature value and the abnormal temperature time caused by the ignition of the initiating explosive device in the stable time interval, and finally outputting a test report.
Constructing hardware facilities of an insulation can, a test tool, a control system and an acquisition system, reasonably arranging all accessories required by the system, and adopting explosion-proof glass, a wire groove, a lighting lamp, a cable and other accessories for an inspection window to resist high temperature and corrosion;
constructing a PLC (programmable logic controller), a touch screen, an acquisition system and a data processing system of a control system to obtain a software flow chart, and respectively programming software meeting the use requirement according to the software flow chart and debugging normally;
the test tool is positioned in the heat insulation box, and the control system, the acquisition system and the video monitoring screen are operated in a remote isolation mode;
the explosion-proof heat insulation box is of a cuboid hollow structure, and the internal space of the explosion-proof heat insulation box is larger;
the square steel plate with the larger thickness and the larger explosion witness plate of the initiating explosive device is slightly smaller in volume, and the steel plate is painted with black paint;
the heating layer constitute by multiunit heating pipe, evenly distributed is around the box, adjusts the speed of temperature rise through the quantity of adjusting the heating pipe operation, and the heating pipe is generally 15 groups.
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is obvious that the described embodiments are only some, not all embodiments of the proposed solution. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows a schematic structural diagram of a slow baking test device, which includes an incubator 1, a test fixture 2, a circulating fan 3, a window 4, a junction box 5, a collection device 6, a video monitor 7, a control cabinet 8, a heating pipe 9, a temperature control sensor 10 and a test sensor 11.
The heat preservation box mainly comprises a heat preservation box body, an air circulation system, a test tool, a Ni120 temperature control sensor, an E-type thermocouple test sensor, a window and other accessories. The insulation box body is divided into four layers, the outermost layer is a box body protective layer and an insulation layer, the main function of the insulation box body is to enable the insulation box body to be complete in structure and insulate heat of the box body, the insulation layer adopts asbestos which is heat-insulating, moisture-proof, flame-resistant and easy to process to insulate heat, the protective layer adopts 304 stainless steel, and the insulation box body has the characteristics of corrosion resistance, collision resistance, easiness in fixing and the like; the explosion-proof layer is attached to the heat preservation layer, the explosion-proof layer is made of steel plates with the thickness of 5mm, the heating layer is arranged between the heat preservation layer and the gas circulation layer, the heating layer is made of electric heating pipes, heating pipes are arranged around the box body for heating uniformity, 3 heating pipes with the power of 0.5kW are arranged in each square meter of each heating pipe, 2024 heating pipes are arranged around the box body, and heated air uniformly circulates into the box body through the axial flow fan to enable the temperature to rise uniformly. The bottom center of box installs horizontal floor, disposes the mounting hole on the floor to adapt to different initiating explosive devices frock. The windows are opened on two sides of the heat preservation box, the heat preservation box is provided with explosion-proof glass, a camera is installed on one side of the heat preservation box, the process of the test is monitored in real time, and an operator on one side observes the heat preservation box. Two temperature control sensors are distributed in the center of the box body, Ni120 is selected as the sensor, and the resistance value of the sensor is increased at a constant speed along with the change of temperature. According to the installation position of the test tool, the E-type thermocouple is installed around the tool and the test piece and used for testing the temperature in the test process, and the temperature range measured by the E-type thermocouple is wide and the temperature of the initiating explosive device during combustion can be measured.
The control cabinet is located the control and connects, is convenient for keep apart the operation, and the control cabinet comprises Programmable Logic Controller (PLC), touch-sensitive screen, control circuit and accessory, and PLC adopts the ladder diagram programming, and the touch-sensitive screen is as man-machine interaction equipment, can carry out data interchange through the touch-sensitive screen with PLC, and the touch-sensitive screen can write in the PLC setting value, also can show PLC's measured value, and the back of setting for, the system automatic operation is up to experimental the end. The control cabinet collects the temperature value of the temperature control sensor, the temperature value is compared with the temperature value set by the touch screen in the PLC, then data conversion and pulse width modulation are carried out, the data are output through a DO module of the PLC, and a control circuit in the control cabinet amplifies signals and outputs the signals to the heating pipe. The PLC can control the heating time and the heating pulse of the heating pipes and also can control the number of the working heating pipes so as to adjust the heating rate in the full oven.
The data acquisition and the video recording are completed through a data acquisition system and a hard disk video recorder, the acquisition system acquires analog signals of sensors with different parameters and converts the analog signals into digital signals, the signals are transmitted into a computer in real time through a high-speed RS485 interface, the computer performs curve display and recording, and the hard disk video recorder records images of a camera in real time.
The data processing software is compiled by using VC, after the test is finished, the temperature data acquired by the test are classified according to positions, the temperature rise rate of sensors at different positions in the slow oven from the beginning of the test in different time periods, the average value, the maximum value, the minimum value, the stable time period and the like of the temperature at different positions in the temperature stable stage are calculated according to the recorded result, the temperature abnormal value and the temperature abnormal time caused by the ignition of the initiating explosive device in the stable time period are calculated, and finally a test report is output.
The method of the invention can successfully complete the slow baking tests of various microminiature initiating explosive devices, and destroy the unexplored test devices in the specified slow baking process in the slow baking oven, so that the equipment has perfect functions, and the test results are in accordance with the theoretical design.
Claims (8)
1. The utility model provides a miniature initiating explosive device is roast test equipment slowly which characterized in that: including insulation can, experimental frock, circulating fan, window, terminal box, collection equipment, video monitor, switch board, temperature sensor and experimental test sensor, experimental frock is arranged in the insulation can, circulating fan and window are arranged in on the insulation can, experimental test sensor is arranged in around experimental frock, collection equipment, video monitor and switch board pass through the terminal box and are connected with the insulation can.
2. The slow-baking test equipment for miniature initiating explosive devices according to claim 1, wherein: the heat preservation box body is divided into four layers, a protective layer, a heat preservation layer, an explosion-proof layer and a heating layer are respectively arranged outside and inside the heat preservation box body, the explosion-proof layer is attached to the heat preservation layer, and the heating layer is arranged between the heat preservation layer and the gas circulation layer.
3. The slow-baking test equipment for miniature initiating explosive devices according to claim 2, wherein: the protective layer adopts 304 stainless steel, and the heat preservation is the asbestos, and the explosion-proof layer adopts 5mm steel sheet.
4. The slow-baking test equipment for miniature initiating explosive devices according to claim 2, wherein: the zone of heating adopts electric heating pipe, and the box lays the heating pipe all around, and the heating pipe is laid 3 heating pipes of 0.5kW per square meter.
5. The slow-baking test equipment for miniature initiating explosive devices according to claim 1, wherein: the bottom center of the box body is provided with a horizontal floor, and the floor is provided with mounting holes so as to adapt to different initiating explosive device tools.
6. The slow-baking test equipment for miniature initiating explosive devices according to claim 1, wherein: and windows are arranged on two sides of the heat preservation box and are provided with explosion-proof glass.
7. The testing method of the slow-baking testing equipment for the miniature initiating explosive device according to claim 1, is characterized by comprising the following operation steps:
1) manufacturing an explosion-proof insulation can, wherein the insulation can is divided into four layers, a box body shell, an explosion-proof layer, a heating layer and an airflow circulation layer, and accessories such as a threading hole, a wire groove, illumination, a junction box, an inspection window, a video recording window and the like are reserved according to the volume of the box body;
2) manufacturing an initiating explosive device test tool, wherein the test tool comprises an initiating explosive device fixing tool, an initiating explosive device blasting evidence finding plate, a sensor positioning tool and a destroying groove;
3) the temperature control system and the parameter acquisition system are configured, the control system is programmed through a PLC, the touch screen performs man-machine interaction, the redundant control sensor feeds back and adjusts the temperature, closed-loop control is integrally realized, and the temperature rise rate can be set in a segmented manner according to slow baking processes of different initiating explosive devices;
4) and after the slow baking is finished, calculating the heating rate in the slow baking oven in a time interval from the beginning of the test, the average value, the maximum value, the minimum value, the stable time interval and the like of the temperature stable phase according to the recorded data, calculating the abnormal temperature value and the abnormal temperature time caused by the ignition of the initiating explosive device in the stable time interval, and finally outputting a test report.
8. The slow-baking test equipment for miniature initiating explosive devices according to claim 1, wherein: the temperature sensor is a Ni120 temperature sensor, and the test sensor is a thermocouple test sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111463807.5A CN114166080A (en) | 2021-12-03 | 2021-12-03 | Slow-baking test equipment and method for miniature initiating explosive device |
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| CN202111463807.5A CN114166080A (en) | 2021-12-03 | 2021-12-03 | Slow-baking test equipment and method for miniature initiating explosive device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608158A (en) * | 2012-03-01 | 2012-07-25 | 西安近代化学研究所 | Critical temperature testing system of gunpowder and explosive thermal explosion |
| CN106324033A (en) * | 2016-08-16 | 2017-01-11 | 西安近代化学研究所 | Visualized explosive cooking-off and gas product analysis device |
| CN107085011A (en) * | 2017-05-31 | 2017-08-22 | 南京理工大学 | The experimental rig roasting slowly of high-precision temperature programmed control is realized in a kind of utilization gas microcirculation |
| CN107102025A (en) * | 2017-05-31 | 2017-08-29 | 南京理工大学 | A kind of slow cook-off test method |
| RU2691782C1 (en) * | 2018-07-11 | 2019-06-18 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулёва" | Installation of slow ammunition heating |
| CN217403281U (en) * | 2021-12-03 | 2022-09-09 | 内蒙航天动力机械测试所 | Miniature initiating explosive device is roast test equipment slowly |
-
2021
- 2021-12-03 CN CN202111463807.5A patent/CN114166080A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608158A (en) * | 2012-03-01 | 2012-07-25 | 西安近代化学研究所 | Critical temperature testing system of gunpowder and explosive thermal explosion |
| CN106324033A (en) * | 2016-08-16 | 2017-01-11 | 西安近代化学研究所 | Visualized explosive cooking-off and gas product analysis device |
| CN107085011A (en) * | 2017-05-31 | 2017-08-22 | 南京理工大学 | The experimental rig roasting slowly of high-precision temperature programmed control is realized in a kind of utilization gas microcirculation |
| CN107102025A (en) * | 2017-05-31 | 2017-08-29 | 南京理工大学 | A kind of slow cook-off test method |
| RU2691782C1 (en) * | 2018-07-11 | 2019-06-18 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулёва" | Installation of slow ammunition heating |
| CN217403281U (en) * | 2021-12-03 | 2022-09-09 | 内蒙航天动力机械测试所 | Miniature initiating explosive device is roast test equipment slowly |
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