CN217403281U - Miniature initiating explosive device is roast test equipment slowly - Google Patents
Miniature initiating explosive device is roast test equipment slowly Download PDFInfo
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- CN217403281U CN217403281U CN202123033907.2U CN202123033907U CN217403281U CN 217403281 U CN217403281 U CN 217403281U CN 202123033907 U CN202123033907 U CN 202123033907U CN 217403281 U CN217403281 U CN 217403281U
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Abstract
The utility model relates to a machine-building technical field, concretely relates to miniature priming sytem is experimental facilities of baking slowly. 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. The utility model discloses for current roast equipment at a slow pace, at measurement accuracy and reliability, all there is very big improvement in life. 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 mechanical manufacturing, in particular to a micro initiating explosive device slow-baking test 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 generated by accidental thermal stimulation when the initiating explosive device and energetic materials thereof are simulated in the processes of manufacturing, transporting, storing and using, technical bases are provided for the design, use and storage of the initiating explosive device, and the tests are 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 for a miniature initiating explosive device, which meets 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 method comprises the following steps of manufacturing an explosion-proof insulation can, wherein the insulation can is divided into four layers, namely 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, a lighting 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 comprises a plurality of groups of heating pipes, the heating pipes are uniformly distributed around the box body, the temperature rise speed is adjusted by adjusting the running number of the heating pipes, and the number of the heating pipes is generally 15.
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 heat preservation is being pasted on the blast proof layer, and the blast proof layer adopts the steel sheet that 5mm is thick, is the zone of heating between heat preservation and the gas circulation layer, and the zone of heating adopts electric heating pipe, and for the homogeneity of heating, the heating pipe is laid all around to the box, and 3 0.5 kW's heating pipes are laid to every square meter of heating pipe, lay 2024 heating pipes all around altogether, and the air after the heating makes the even rising of temperature in the even circulation box through axial fan. 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, E-type thermocouples are installed around the tool and the test piece and used for testing the temperature in the test process, the temperature measurement range of the E-type thermocouples is wide, and the temperature of the initiating explosive device during combustion can be measured.
The control cabinet is located the control and connects, the isolation operation of being convenient for, 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 into the PLC setting value, also can show PLC's measured value, and after setting for, the system automatic operation is up to the experiment end. The temperature value of the temperature control sensor is collected by the control cabinet, 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 VC, after the test is finished, the temperature data acquired by the test are classified according to positions, according to the recorded result, the temperature rise rate of the sensors in 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 temperatures in different positions in the temperature stable period are calculated, 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 (7)
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, characterized in that: the heat preservation box divides the four layers, by outer and interior protective layer, heat preservation, explosion-proof layer and zone of heating respectively, the heat preservation is being pasted to the explosion-proof layer, is the zone of heating between heat preservation 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, characterized in that: the bottom center of the heat preservation box is provided with a horizontal floor, and mounting holes are formed in the floor 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 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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| CN202123033907.2U CN217403281U (en) | 2021-12-03 | 2021-12-03 | Miniature initiating explosive device is roast test equipment slowly |
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| CN202123033907.2U CN217403281U (en) | 2021-12-03 | 2021-12-03 | Miniature initiating explosive device is roast test equipment slowly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166080A (en) * | 2021-12-03 | 2022-03-11 | 内蒙航天动力机械测试所 | Slow-baking test equipment and method for miniature initiating explosive device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166080A (en) * | 2021-12-03 | 2022-03-11 | 内蒙航天动力机械测试所 | Slow-baking test equipment and method for miniature initiating explosive device |
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