Propellant combustion wave temperature distribution measuring device and method

Abstract

The invention discloses a propellant combustion wave temperature distribution measuring device and method, and relates to the technical field of propellant combustion wave temperature detection.The device comprises a box body and a plurality of first temperature measuring elements, the box body is connected with a charging part, the part, located in the box body, of the charging part is provided with a containing groove, and the containing groove can contain a propellant; a fixing plate is movably arranged in the box body, a plurality of first temperature measuring elements are connected to the fixing plate, and the temperature measuring end of each first temperature measuring element is higher than the accommodating groove; the method comprises the steps that the containing groove is filled with a propellant, a plurality of first temperature measuring elements are installed on the fixing plate, the relative positions of the first temperature measuring elements and the containing groove are adjusted, and the propellant is ignited; the positions of the temperature measuring ends of the first temperature measuring elements on the propellant combustion flame are adjusted through the movable fixing plate, the temperatures of multiple positions on the propellant combustion flame can be measured, the temperature distribution of the combustion wave of the propellant can be obtained according to multiple temperature data, and the detection result is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of propellant combustion wave temperature detection, and particularly to a device and method for measuring the temperature distribution of a propellant combustion wave. Background Art

[0002] Since the 1950s, the ignition and combustion process of propellants has been widely studied by many scholars, and a large number of achievements have been accumulated, and the research is relatively complete. Since 2000, the ignition and combustion process of propellants has received extensive attention from scientists at home and abroad, and the combustion wave temperature under different pressure environmental conditions is also a research hotspot. However, the existing devices for measuring the temperature distribution of propellant combustion waves have relatively large errors in measuring the temperature of propellant combustion waves, and it is impossible to achieve a relatively accurate measurement of the temperature distribution of combustion waves during the combustion process of propellants. Therefore, how to solve the problem that the existing measurement devices cannot accurately measure the temperature distribution of propellant combustion waves is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of the present invention is to provide a device and method for measuring the temperature distribution of a propellant combustion wave to solve the above problems existing in the prior art and make the measurement results more accurate.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] The present invention provides a device for measuring the temperature distribution of a propellant combustion wave, including: a box body and a plurality of first temperature measuring elements. The box body is connected with a charge member. The part of the charge member located inside the box body has a receiving groove, and the receiving groove can accommodate the propellant. A fixing plate is movably arranged inside the box body. A plurality of the first temperature measuring elements are connected to the fixing plate. The temperature measuring ends of each of the first temperature measuring elements are higher than the receiving groove, and the movement of the fixing plate inside the box body can drive the first temperature measuring elements to approach or move away from the receiving groove.

[0006] In some embodiments, the plurality of first temperature measuring elements are distributed vertically on the fixing plate.

[0007] In some embodiments, the device for measuring the temperature distribution of a propellant combustion wave further includes a second temperature measuring element. The second temperature measuring element is connected to the fixing plate. The plurality of second temperature measuring elements are distributed horizontally, and the temperature measuring ends of each of the second temperature measuring elements are higher than the receiving groove.

[0008] In some embodiments, the propellant combustion wave temperature distribution measuring device also includes a moving device, the moving device includes a support rod, the charge is connected to the base of the box, the accommodating groove is arranged on the top of the charge, the support rod is slidably connected to the base, the fixing plate is connected to the support rod, and the support rod slides on the base to drive the first temperature measuring element and the second temperature measuring element to approach or move away from the accommodating groove in the horizontal direction.

[0009] In some embodiments, the moving device further includes a switching device, the switching device and the support rod form a rotational connection around a vertical axis, and the fixing plate is fixedly connected to the switching device.

[0010] In some embodiments, an opening is provided on the side wall of the box body, a support plate is connected to the opening, a support hole is provided on the support plate, and the support hole can support one end of the first temperature measuring element and the second temperature measuring element away from the fixed plate. A cover plate is provided on the outside of the support plate, and the cover plate is sealed and fixedly connected to the side wall of the box body.

[0011] In some embodiments, the propellant combustion wave temperature distribution measuring device also includes a third temperature measuring element and a sealing cover, the charging part includes a charging bolt, and a center hole is provided on the charging bolt, which extends axially along the charging bolt and penetrates the charging bolt, and the screw of the charging bolt passes through the mounting hole provided on the base of the box body and extends into the box body, and the bolt head of the charging bolt is threadedly connected to the mounting hole, the accommodating groove is provided at one end of the screw rod extending into the box body, and the axis of the accommodating groove coincides with the axis of the center hole, and the third temperature measuring element can pass through the center hole and extend into the accommodating groove; the sealing cover is located on the outside of the bolt head and is sealed and fixedly connected to the mounting hole.

[0012] In some embodiments, the box body is provided with ventilation holes and through holes, the ventilation holes are connected and communicated with an intake pipe and an exhaust pipe, the intake pipe and the exhaust pipe are respectively provided with valves, the intake pipe can be communicated with an intake device, and the intake device is used to fill the box body with gas; the through hole is opened at the top of the box body, and a lens is connected to the through hole, the lens can block the through hole, and the laser generated by the laser generator can be shot into the box body through the lens to ignite the propellant.

[0013] In some embodiments, an observation hole is opened on the side wall of the box, and infrared transparent glass is connected to the observation hole. The infrared transparent glass can block the observation hole, and the infrared thermal imager can measure the thermal image of the propellant combustion flame through the infrared transparent glass.

[0014] The present invention also provides a method for measuring the temperature distribution of a propellant combustion wave. Using the propellant combustion wave temperature distribution measuring device described in any one of the above technical solutions, fill the propellant in the accommodation groove, and install a plurality of the first temperature measuring elements on the fixed plate. Adjust the relative positions of the plurality of the first temperature measuring elements and the accommodation groove so that the temperature measuring ends of the plurality of the first temperature measuring elements are located at preset positions on the combustion flame of the propellant. Ignite the propellant, and measure the temperatures at a plurality of positions on the combustion flame of the propellant through the plurality of the first temperature measuring elements, so as to obtain the temperature distribution of the propellant combustion wave.

[0015] The present invention has achieved the following technical effects compared with the prior art:

[0016] The present invention provides a device and a method for measuring the temperature distribution of a propellant combustion wave. The box body of the propellant combustion wave temperature distribution measuring device is connected with a charge member. The part of the charge member located in the box body has an accommodation groove, and a movable fixed plate is arranged in the box body. A plurality of first temperature measuring elements are connected to the fixed plate. When the pressure in the box body is different or the propellant material is different, the size and shape of the combustion flame of the propellant are different. The fixed plate can move relative to the charge member, so that the plurality of first temperature measuring elements can accurately reach the preset positions, improving the detection accuracy. The propellant combustion wave temperature distribution measuring device provided by the present invention can adapt to various measurement conditions. During the measurement process, the movement of the fixed plate can be controlled to obtain the measurement temperatures of the plurality of first temperature measuring elements at different positions. There are more measurement data, and a contact detection method is adopted to contact the plurality of first temperature measuring elements with the propellant combustion flame, so that the temperatures at a plurality of different positions on the propellant combustion flame can be detected, and thus the temperature distribution of the propellant combustion wave can be obtained according to the plurality of temperature data, and the detection result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a propellant combustion wave temperature distribution measuring device according to an embodiment of the present invention;

[0019] Figure 2 It is a schematic structural diagram of a fixed plate according to an embodiment of the present invention;

[0020] Figure 3 It is a schematic structural diagram of a support plate according to an embodiment of the present invention;

[0021] Figure 4 is a cross-sectional view of a mobile device according to an embodiment of the present invention;

[0022] In the figure: 1-lens, 2-first end cover, 3-box, 4-second end cover, 5-infrared transparent glass, 6-second bolt, 7-base, 8-sealing cover, 9-bolt head, 10-support rod, 11-slide rail, 12-sealing gasket, 13-screw, 14-adapter, 15-fixing plate, 16-support plate, 17-ventilation hole, 18-slider, 19-fixing hole, 20-support hole, 21-through hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The purpose of the present invention is to provide a device and method for measuring the temperature distribution of a propellant combustion wave, so as to solve the problems existing in the prior art and make the measurement result more accurate.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The present invention provides a propellant combustion wave temperature distribution measuring device, such as Figures 1 to 3 As shown, it includes: a box body 3 and a plurality of first temperature measuring elements, the box body 3 is connected to a charge, the portion of the charge located in the box body 3 has a receiving groove 22, the receiving groove 22 can receive the propellant, a fixed plate 15 is movably arranged in the box body 3, a plurality of first temperature measuring elements are connected to the fixed plate 15, the temperature measuring end of each first temperature measuring element is higher than the receiving groove 22, and the movement of the fixed plate 15 in the box body 3 can drive the first temperature measuring element and the second temperature measuring element to approach or move away from the receiving groove 22. A plurality of fixing holes 19 are provided on the fixed plate 15, the plurality of first temperature measuring elements are movably connected in the fixing holes 19, and the plurality of first temperature measuring elements can move in the fixing holes 19 in the horizontal direction, so as to adjust the distance of the temperature measuring end of the first temperature measuring element relative to the propellant combustion flame. Preferably, the first temperature measuring element is a thermocouple.

[0027] It should be noted that, in the propellant combustion wave temperature distribution measurement device provided by the present invention, the first temperature measuring element is not limited to the thermocouple in the above-mentioned embodiment, and the first temperature measuring element can also be an element such as a thermistor that can measure the temperature of the propellant combustion flame.

[0028] Fill the propellant into the accommodation groove 22, install a plurality of first temperature measuring elements on the fixed plate 15, and adjust the positions of the plurality of first temperature measuring elements in the horizontal direction so that the temperature measuring ends of the plurality of first temperature measuring elements can reach the preset positions on the propellant combustion flame. Fill the box body 3 with gas at a preset pressure, seal the box body 3, ignite the propellant, and obtain the temperature values fed back by the plurality of first temperature measuring elements. When the pressure inside the box body 3 is different or the propellant material is different, the size and shape of the propellant combustion flame are different. The fixed plate 15 can move relative to the charge member, so that the plurality of first temperature measuring elements can accurately reach the preset positions, improving the detection accuracy. The propellant combustion wave temperature distribution measuring device provided by the present invention can adapt to various measurement conditions. During the measurement process, the movement of the fixed plate can be controlled to obtain the measurement temperatures of the plurality of first temperature measuring elements at different positions. There are more measurement data, and the plurality of first temperature measuring elements are in contact with the propellant combustion flame by contact detection, which can more accurately detect the temperatures at multiple different positions on the propellant combustion flame. Thus, the temperature distribution of the combustion wave of the propellant can be obtained according to the plurality of temperature data, and the detection result is more accurate.

[0029] The propellant combustion wave temperature distribution measuring device provided by the present invention can also adjust the positions of the plurality of first temperature measuring elements in the vertical direction so that the temperature measuring ends of the plurality of first temperature measuring elements can reach the preset positions on the propellant combustion flame, thereby being able to measure the temperatures at the preset positions of the combustion flames at different heights of the propellant.

[0030] In another implementation manner of this embodiment, the plurality of first temperature measuring elements are distributed along the vertical direction on the fixed plate 15. The fixed plate 15 is provided with a plurality of fixing holes 19 distributed along the vertical direction, and the plurality of first temperature measuring elements are movably connected in the plurality of fixing holes 19. The plurality of first temperature measuring elements distributed along the vertical direction can measure the temperatures at multiple different positions along the vertical direction on the propellant combustion flame, thereby obtaining the temperature distribution of the combustion wave of the propellant along the vertical direction according to the plurality of temperature data.

[0031] In another embodiment of this example, the propellant combustion wave temperature distribution measuring device further includes a second temperature measuring element. The second temperature measuring element is connected to the fixing plate 15. A plurality of second temperature measuring elements are distributed in the horizontal direction, and the temperature measuring ends of each second temperature measuring element are higher than the receiving groove 22. The fixing plate 15 is also provided with a plurality of fixing holes 19 distributed in the horizontal direction. The fixing holes 19 are also distributed in the SuiPing direction on the fixing plate 15. A plurality of second temperature measuring elements are movably connected in the fixing holes 19. By arranging a plurality of second temperature measuring elements in the horizontal direction on the fixing plate 15, the temperatures at multiple positions in the horizontal direction on the propellant combustion flame can be measured, and thus the temperature distribution of the combustion wave of the propellant in the vertical direction can be obtained based on multiple temperature data. Combining the temperatures at multiple different positions in the vertical direction on the propellant combustion flame, the temperature distribution of the combustion wave at multiple different positions in the vertical and horizontal directions of the propellant can be obtained, and the detection result is more accurate. Preferably, the second temperature measuring element is a thermocouple.

[0032] It should be noted that for the propellant combustion wave temperature distribution measuring device provided by the present invention, the second temperature measuring element is not limited to the thermocouple in the above embodiment. The second temperature measuring element can also be a thermal resistor or other elements that can measure the temperature of the propellant combustion flame.

[0033] In another embodiment of this example, the propellant combustion wave temperature distribution measuring device further includes a moving device. The moving device includes a support rod 10. The charging member is connected to the base 7 of the box body 3. The receiving groove 22 is arranged at the top of the charging member. The support rod 10 is slidably connected to the base 7. The fixing plate 15 is connected to the support rod 10. The sliding of the support rod 10 on the base 7 can drive the first temperature measuring element and the second temperature measuring element to approach or move away from the receiving groove 22 in the horizontal direction. By sliding the support rod 10 on the base 7, the distances between the first temperature measuring element and the second temperature measuring element and the propellant combustion flame are adjusted, so that the temperature measuring ends of the first temperature measuring element and the second temperature measuring element can reach the preset positions on the propellant combustion flame, and the first temperature measuring element and the second temperature measuring element on the fixing plate 15 can adapt to the measurement of the temperatures of flames with different sizes and different shapes generated by the propellant under different measurement conditions in the box body 3.

[0034] In another embodiment of this example, the support rod 10 is a telescopic member. By stretching or compressing the support rod 10, the height of the fixing plate 15 is adjusted, thereby driving the first temperature measuring element and the second temperature measuring element to move in the vertical direction.

[0035] In another embodiment of this example, as Figure 4As shown, the mobile device also includes a slide rail 11, a slider 18 and a linear drive device. The slide rail 11 is fixedly connected to the base 7 of the box body 3 and extends radially along the accommodating groove 22. The slider 18 is slidably connected to the slide rail 11. The support rod 10 is fixedly connected to the slider 18. The linear drive device can drive the slider 18 to slide along the slide rail 11 to make the support rod 10 approach or move away from the accommodating groove 22. During the measurement process, the linear drive device can be controlled to drive the slider 18 to move. The support rod 10 is fixedly connected to the slider 18 and can slide along the slide rail 11, which is convenient for adjusting the distance of the support rod 10 relative to the accommodating groove 22, thereby adjusting the position of the temperature measuring end of the first temperature measuring element and the second temperature measuring element on the propellant combustion flame, and obtaining the measured temperatures of multiple first temperature measuring elements and second temperature measuring elements at different positions, so that more measurement data is obtained and the detection result is more accurate.

[0036] In another implementation of the present embodiment, the mobile device further includes an adapter 14, the adapter 14 and the support rod 10 are rotatably connected about a vertical axis, and the fixing plate 15 is fixedly connected to the adapter 14. The adapter 14 is rotated about the vertical axis to adjust the angle of the temperature measuring ends of the first temperature measuring element and the second temperature measuring element relative to the propellant combustion flame, so that the first temperature measuring element and the second temperature measuring element on the fixing plate 15 can adapt to the measurement of the temperature of flames of different sizes and shapes generated by the propellant under different measurement conditions in the box 3.

[0037] In another embodiment of the present embodiment, the side wall of the box body 3 is provided with an opening, and a support plate 16 is connected to the opening. The support plate 16 is provided with a support hole 20. The support hole 20 can support the end of the first temperature measuring element and the second temperature measuring element away from the fixed plate 15. A cover plate is provided outside the support plate 16, and the cover plate is sealed and fixedly connected to the side wall of the box body 3. The first temperature measuring element and the second temperature measuring element can be movably connected to the support hole 20, and the first temperature measuring element and the second temperature measuring element can move in the horizontal direction in the support hole 20. The support plate 16 supports the end of the first temperature measuring element and the second temperature measuring element away from the connection with the fixed plate 15, which can prevent the end of the first temperature measuring element and the second temperature measuring element away from the connection with the fixed plate 15 from drooping due to gravity, causing the temperature measuring end to deviate and affect the detection result; the cover plate can seal the opening, so that the box body 3 is in a sealed state when measuring the propellant combustion wave temperature, reducing the interference of the external environment.

[0038] In another embodiment of this example, the propellant combustion wave temperature distribution measuring device further includes a third temperature measuring element and a sealing cover 8. The charging member includes a charging bolt, and a central hole extending along the axial direction of the charging bolt and penetrating the charging bolt is provided on the charging bolt. The screw 13 of the charging bolt passes through the mounting hole provided in the base 7 of the box body 3 and extends into the box body 3, and the bolt head 9 of the charging bolt is threadedly connected to the mounting hole. A receiving groove 22 is provided at one end of the screw 13 extending into the box body 3, and the axis of the receiving groove 22 coincides with the axis of the central hole. The third temperature measuring element can pass through the central hole and extend into the receiving groove 22; the sealing cover 8 is located outside the bolt head 9 and is fixedly connected to the mounting hole in a sealed manner. The axis of the central hole is parallel to the vertical axis, and the upper shell and the base 7 of the box body 3 are detachably connected by a second bolt 6, and a sealing gasket 12 is provided between the upper shell and the base 7. The third temperature measuring element is extended into the receiving groove 22 through the central hole, the propellant is filled in the receiving groove 22, the screw 13 is extended into the box body 3 from the mounting hole, and the bolt head 9 is threadedly connected to the mounting hole. The third temperature measuring element can measure the temperature transferred from the combustion flame to the propellant during the combustion of the propellant; a sealing ring is provided between the sealing cover 8 and the base 7, so that the sealing cover 8 can seal the mounting hole and the central hole penetrating the first bolt, so that the box body 3 is in a sealed state when measuring the propellant combustion wave temperature, reducing the interference of the external environment. Preferably, the third temperature measuring element is a thermocouple.

[0039] It should be noted that for the propellant combustion wave temperature distribution measuring device provided by the present invention, the third temperature measuring element is not limited to the thermocouple in the above embodiment, and the third temperature measuring element can also adopt elements such as thermal resistors that can measure the temperature of the propellant combustion flame.

[0040] In another embodiment of this example, an air exchange hole 17 and a through hole 21 are provided on the box body 3. The air exchange hole 17 is connected and communicated with an air inlet pipe and an exhaust pipe, and valves are respectively provided on the air inlet pipe and the exhaust pipe. The air inlet pipe can be connected to an air inlet device, and the air inlet device is used to fill the box body 3 with gas; the through hole 21 is provided at the top of the box body 3, and a lens 1 is connected in the through hole 21. The lens 1 can block the through hole 21, and the laser generated by the laser generator can be emitted into the box body 3 through the lens 1 to ignite the propellant. The air inlet pipe can be connected to an air filling device, and gas can be introduced into the box body 3 through the air inlet pipe, and the gas in the box body 3 can be discharged through the exhaust pipe; the laser generator can ignite the propellant through the lens 1 in the through hole 21 at the top of the box body 3, and ignite the propellant inside the box body 3 outside the box body 3, which can reduce the interference of the external environment on the combustion of the propellant and improve the measurement accuracy.

[0041] In another embodiment of this example, a first end cover 2 is provided outside the lens 1. The first end cover 2 is detachably connected to the outside of the box body 3. When the propellant combustion wave temperature distribution measuring device is not in use, the first end cover 2 can cover the lens 1 to avoid damage to the lens 1.

[0042] In another embodiment of this example, an observation hole is formed in the side wall of the box body 3, and an infrared-transmitting glass 5 is connected in the observation hole. The infrared-transmitting glass 5 can block the observation hole, and the infrared thermal imager can measure the thermal image of the propellant combustion flame through the infrared-transmitting glass 5. By using the infrared thermal imager, the thermal image of the propellant combustion flame can be obtained, and the installation positions of the first temperature measuring element and the second temperature measuring element can be adjusted according to the thermal image, so that the temperature measuring ends of the first temperature measuring element and the second temperature measuring element reach the preset positions on the propellant combustion flame, and the temperature of the combustion flame at the corresponding positions of the propellant can be obtained, and the detection result is more accurate.

[0043] In another embodiment of this example, a second end cover 4 is arranged outside the infrared-transmitting glass 5. The second end cover 4 is detachably connected to the outside of the box body 3. When the propellant combustion wave temperature distribution measuring device is not in use, the second end cover 4 can cover the infrared-transmitting glass 5 to avoid damage to the infrared-transmitting glass 5.

[0044] Based on the above device, the present invention further provides a method for measuring the temperature distribution of a propellant combustion wave. By using the above-mentioned propellant combustion wave temperature distribution measuring device, propellant is filled in the accommodation groove 22, and a plurality of first temperature measuring elements are installed on the fixing plate 15. The relative positions of the plurality of first temperature measuring elements and the accommodation groove 22 are adjusted so that the temperature measuring ends of the plurality of first temperature measuring elements are located at the preset positions on the combustion flame of the propellant. The propellant is ignited, and the temperatures at a plurality of positions on the combustion flame of the propellant are measured by the plurality of first temperature measuring elements, and then the temperature distribution of the propellant combustion wave is obtained. The fixing plate 15 can move relative to the charging member, so that the plurality of first temperature measuring elements can accurately reach the preset positions, improving the detection accuracy, enabling the propellant combustion wave temperature distribution measuring device provided by the present invention to adapt to various measurement conditions, controlling the movement of the fixing plate during the measurement process, obtaining the measurement temperatures of the plurality of first temperature measuring elements at different positions, having more measurement data, and using contact detection to contact the plurality of first temperature measuring elements with the propellant combustion flame, enabling more accurate detection of the temperatures at a plurality of different positions on the propellant combustion flame, and thus obtaining the temperature distribution of the propellant combustion wave according to the plurality of temperature data, and the detection result is more accurate.

[0045] In another embodiment of this example, before the formal measurement, a pre-measurement is carried out first. During the pre-measurement process, the thermal image of the propellant combustion flame is obtained by the infrared thermal imager, and the installation positions of the first temperature measuring element and the second temperature measuring element are adjusted according to the thermal image. The installation positions of the first temperature measuring element and the second temperature measuring element can be adjusted according to the thermal image, so that the temperature measuring ends of the first temperature measuring element and the second temperature measuring element reach the preset positions on the propellant combustion flame, and the temperature of the combustion flame at the corresponding positions of the propellant can be obtained, and the detection result is more accurate.

[0046] In the present invention, specific examples are used to illustrate the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation on the present invention.

Claims

1. A propellant combustion wave temperature distribution measuring device, characterized in that: include: A box (3) and a plurality of first temperature measuring elements, the box (3) being connected to a medicine-filled piece, the portion of the medicine-filled piece located in the box (3) having a receiving groove (22), the receiving groove (22) being capable of receiving a propellant, a fixed plate (15) being movably arranged in the box (3), a plurality of the first temperature measuring elements being connected to the fixed plate (15), the temperature measuring end of each of the first temperature measuring elements being higher than the receiving groove (22), and the movement of the fixed plate (15) in the box (3) being capable of driving the first temperature measuring element to approach or move away from the receiving groove (22).

2. The propellant combustion wave temperature distribution measuring device according to claim 1, characterized in that: A plurality of the first temperature measuring elements are distributed on the fixing plate (15) along a vertical direction.

3. The propellant combustion wave temperature distribution measuring device according to claim 1, characterized in that: It also includes a second temperature measuring element, which is connected to the fixing plate (15), a plurality of the second temperature measuring elements are distributed in a horizontal direction, and a temperature measuring end of each of the second temperature measuring elements is higher than the accommodating groove (22).

4. The propellant combustion wave temperature distribution measuring device according to claim 3, characterized in that: The invention also comprises a moving device, which comprises a support rod (10), the medicine-filling member is connected to the base (7) of the box body (3), the accommodating groove (22) is arranged on the top of the medicine-filling member, the support rod (10) is slidably connected to the base (7), the fixing plate (15) is connected to the support rod (10), and the support rod (10) slides on the base (7) to drive the first temperature measuring element and the second temperature measuring element to approach or move away from the accommodating groove (22) in the horizontal direction.

5. The propellant combustion wave temperature distribution measuring device according to claim 4, characterized in that: The moving device further comprises a switching device (14), the switching device (14) and the support rod (10) are connected in rotation about a vertical axis, and the fixing plate (15) is fixedly connected to the switching device (14).

6. The propellant combustion wave temperature distribution measuring device according to claim 3, characterized in that: The side wall of the box body (3) is provided with an opening, a support plate (16) is connected to the opening, a support hole (20) is provided on the support plate (16), and the support hole (20) can support one end of the first temperature measuring element and the second temperature measuring element away from the fixing plate (15), and a cover plate is provided outside the support plate (16), and the cover plate is sealed and fixedly connected to the side wall of the box body (3).

7. The propellant combustion wave temperature distribution measuring device according to claim 1, characterized in that: It also includes a third temperature measuring element and a sealing cover (8), the charging part includes a charging bolt, the charging bolt is provided with a center hole extending along the axial direction of the charging bolt and penetrating the charging bolt, the screw rod (13) of the charging bolt passes through the mounting hole provided on the base (7) of the housing (3) and extends into the housing (3), and the bolt head (9) of the charging bolt is threadedly connected to the mounting hole, the accommodating groove (22) is provided at one end of the screw rod (13) extending into the housing (3), the axis of the accommodating groove (22) coincides with the axis of the center hole, and the third temperature measuring element can pass through the center hole and extend into the accommodating groove (22); the sealing cover (8) is located outside the bolt head (9) and is sealed and fixedly connected to the mounting hole.

8. The propellant combustion wave temperature distribution measuring device according to claim 1, characterized in that: The box body (3) is provided with a ventilation hole (17) and a through hole (21); the ventilation hole (17) is connected to and communicates with an intake pipe and an exhaust pipe; the intake pipe and the exhaust pipe are respectively provided with valves; the intake pipe can be communicated with an intake device; the intake device is used to fill gas into the box body (3); the through hole (21) is provided at the top of the box body (3); a lens (1) is connected to the through hole (21); the lens (1) can block the through hole (21); and the laser generated by the laser generator can be injected into the box body (3) through the lens (1) to ignite the propellant.

9. The propellant combustion wave temperature distribution measuring device according to claim 1, characterized in that: An observation hole is provided on the side wall of the box body (3), and an infrared light-transmitting glass (5) is connected to the observation hole. The infrared light-transmitting glass (5) can block the observation hole, and an infrared thermal imager can measure a thermal image of the propellant combustion flame through the infrared light-transmitting glass (5).

10. A method for measuring the temperature distribution of a propellant combustion wave, characterized in that: Using the propellant combustion wave temperature distribution measuring device described in any one of claims 1 to 9, propellant is filled in the accommodating groove (22), and a plurality of the first temperature measuring elements are installed on the fixing plate (15), and the relative positions of the plurality of the first temperature measuring elements and the accommodating groove (22) are adjusted so that the temperature measuring ends of the plurality of the first temperature measuring elements are located at preset positions on the combustion flame of the propellant, the propellant is ignited, and the temperatures of a plurality of positions on the combustion flame of the propellant are measured by the plurality of the first temperature measuring elements, thereby obtaining the combustion wave temperature distribution of the propellant.

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