Composite material transient high temperature impact device

Abstract

The application discloses a composite material transient high-temperature impact device, which comprises a fuel containing cavity and a detection channel, the fuel containing cavity is provided with combustible gas and oxygen, one end of the fuel containing cavity is provided with a sealing film for separating the fuel containing cavity and the detection channel; a detection piece is arranged in the detection channel, and an ignition piece for igniting the combustible gas in the fuel containing cavity is further arranged; after the ignition piece ignites the combustible gas in the fuel containing cavity, high-temperature gas breaks the sealing film and performs high-temperature transient impact on the detection piece in the detection channel. In the application, the composite material transient high-temperature impact device has simple structure, can simulate high-temperature impact on the detection piece in the actual combustion supporting moment, increases the detection precision, and further, the stress condition of the detection piece is convenient to adjust through the arrangement of the first pulling piece and the second pulling piece.

Description

TECHNICAL FIELD

[0001] The present application relates to composite material detection equipment technical field, especially to a kind of composite material transient high temperature impact device. BACKGROUND

[0002] In the equipment used in aerospace or some military, due to the existence of boost system, in the moment of engine ignition or high temperature gas is ejected from engine, not only cause engine temperature to rise sharply but also form high temperature impact to surrounding object, if the high temperature impact resistance of surrounding object is not high, it can lead to its damage, so it is necessary to detect material in transient high temperature impact detection.

[0003] Currently, only the way of equal heat flow is used for detection, and a heat radiation device is added to simulate high temperature. The current detection equipment cannot simulate transient high temperature impact, which affects the detection accuracy to some extent. SUMMARY

[0004] To solve the technical problems in the background art, the present application provides a kind of composite material transient high temperature impact device.

[0005] The composite material transient high temperature impact device provided by the present application includes a fuel containing cavity and a detection channel. The fuel containing cavity contains combustible gas and oxygen. One end of the fuel containing cavity is provided with a sealing membrane for separating the fuel containing cavity and the detection channel.

[0006] The detection channel is placed with a detection piece, and a ignition device is used to ignite the combustible gas in the fuel containing cavity. After the ignition device ignites the combustible gas in the fuel containing cavity, high temperature gas breaks through the sealing membrane and performs high temperature transient impact on the detection piece in the detection channel.

[0007] As a further optimized scheme of the present application, the device further includes a fuel containing cylinder and a detection tube. The sealing membrane is installed at one end close to the opening of the fuel containing cylinder, and the sealing membrane and the fuel containing cylinder form a fuel cavity. The detection tube is detachably installed on the fuel containing cylinder. The ignition device is installed at one end of the fuel containing cylinder away from the sealing membrane.

[0008] As a further optimized scheme of the present application, the fuel containing cylinder has an installation protrusion. The sealing membrane is fixed on a fixing ring, and the fixing ring is fixed on the installation protrusion.

[0009] As a further optimized scheme of the present application, the installation protrusion has an installation interval to the end face of the opening of the fuel containing cylinder. One end of the detection tube is sleeved in the fuel containing cylinder and located in the installation interval. The outer side of the fuel containing cylinder is provided with a clamping piece for fixing the detection tube in the fuel containing cylinder.

[0010] One end of the detection tube has a limiting ring extending radially inward, the limiting ring abutting against the fixing ring.

[0011] As a further optimization of the present invention, the inner diameter of the limiting ring is smaller than the inner diameter of the fixing ring, that is, the sealing film has a portion opposite to the limiting ring.

[0012] As a further optimization of the present invention, a detection component clamping mechanism is detachably installed inside the detection tube for fixing the detection component clamping component.

[0013] As a further optimization of the present invention, the detection component clamping mechanism includes an upper fixing component and a lower fixing component installed inside the detection tube. One end of the detection component is detachably installed on the upper fixing component, and the other end of the detection component is detachably installed on the lower fixing component.

[0014] As a further optimization of the present invention, it also includes a first pulling member that is threadedly installed on the side wall of the detection tube, the upper fixing member being rotatably installed at the end of the first pulling member, and rotating the first pulling member causing the upper fixing member to move upward or downward; and / or

[0015] It also includes a second pull member that is threadedly installed on the side wall of the detection tube. The lower fixing member is rotatably installed at the end of the second pull member. Rotating the second pull member causes the lower fixing member to move upward or downward.

[0016] Further simulations were conducted to demonstrate the effect of an explosion or combustion on the test piece, which may cause the test piece to rotate relative to the frame, thus further simulating real-world application scenarios.

[0017] As a further optimization of the present invention, a flow guiding channel is formed between the inner walls of the detection channel on the outer side of the detection element.

[0018] As a further optimization of the present invention, the ignition element is ignited by high-pressure plasma.

[0019] As a further optimization of the present invention, the combustible gas in the accommodating cavity is propane.

[0020] The composite material transient high temperature impact device proposed in this invention has a simple structure and can simulate the high temperature impact on the test piece during actual combustion, thereby increasing the detection accuracy. Furthermore, the setting of the first and second pulling parts facilitates the adjustment of the stress on the test piece.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] Fig. 1 This is a schematic diagram of the structure of the present invention;

[0023] Fig. 2 This is a cross-sectional view of the detection tube and fuel container tube of the present invention;

[0024] Fig. 3 This is a magnified view of a portion of area A of the present invention;

[0025] In the diagram: 1. Fuel container cavity; 2. Detection channel; 3. Sealing membrane; 4. Ignition element; 5. Fuel container cylinder; 50. Mounting protrusion; 6. Detection tube; 60. Limiting ring; 7. Worktable; 70. Sliding hole; 8. Elastic limiting plate; 80. Front plate; 81. Rear plate; 82. Spring; 9. Fixing ring; 10. Upper fixing component; 11. Lower fixing component; 12. First pulling component; 13. Second pulling component; 14. Conical guide tube. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] like Figs. 1-3 The present invention relates to a composite material transient high temperature impact device, comprising a fuel containing chamber 1 and a detection channel 2. The fuel containing chamber 1 contains combustible gas and oxygen. In this embodiment, the combustible gas is propane. One end of the fuel containing chamber 1 is provided with a sealing membrane 3 for separating the fuel containing chamber 1 and the detection channel 2.

[0028] The detection channel 2 contains a detection element and also includes an ignition element 4 for igniting the combustible gas in the fuel containment chamber 1. Preferably, the ignition element 4 is ignited by high-pressure plasma. After the ignition element 4 ignites the combustible gas in the fuel containment chamber 1, one end of the detection channel 2 is open and the other end is connected to the fuel containment chamber 1. The high-temperature gas breaks through the sealing membrane 3 and subjectes the detection element in the detection channel 2 to a high-temperature transient impact, thereby simulating the high-temperature transient impact on the detection element in the actual process. After completion, the integrity of the detection element is detected, and the performance of the detection element in high-temperature transient impact is tested.

[0029] Preferably, the system also includes a fuel container 5 and a detection tube 6. The detection tube 6 and the fuel container 5 are mounted on the workbench 7. The sealing membrane 3 is mounted at one end near the opening of the fuel container 5. The sealing membrane 3 and the fuel container 5 form a fuel chamber. The detection tube 6 is detachably mounted on the fuel container 5. The ignition element 4 is mounted at one end of the fuel container 5 away from the sealing membrane 3. The fuel container 5 is also provided with a feed port with a valve (not shown in the figure). After completing one experiment, the sealing membrane 3 is replaced, the fuel container 5 is evacuated again and filled with combustible gas and oxygen, and then the fuel container 5 is fixed on the detection tube 6 again.

[0030] Specifically, in order to reduce the relative movement between the detection tube 6 and the fuel container 5 at the moment of fuel explosion and increase the detection accuracy, preferably, the detection tube 6 is slidably mounted on the worktable 7 along its axial direction. Specifically, the worktable 7 has a sliding hole 70, and the detection tube 6 is slidably mounted in the sliding hole 70. The fuel container 5 is mounted on the detection tube 6, and an elastic limiting plate 8 is provided at the rear of the worktable 7. When the fuel in the fuel container 5 explodes, the fuel container 5 moves away from the detection tube 6 and collides with the elastic limiting plate 8. At this time, the elastic limiting plate 8 shares part of the impact force of the fuel container 5, reducing the relative displacement between the fuel container 5 and the detection tube 6. The elastic limiting plate 8 may include a front plate 80 and a rear plate 81. The rear plate 81 is fixed on the worktable 7, and the front plate 80 is mounted on the rear plate 81 by a spring 82. The front plate 80 is opposite to the fuel container 5.

[0031] Preferably, the inner wall of the fuel container 5 has an mounting protrusion 50, which is annular. The sealing membrane 3 is fixed to the fixing ring 9, and the fixing ring 9 is fixed to the mounting protrusion 50. Specifically, the fixing ring 9 is fixed to the mounting protrusion 50 by screws.

[0032] Preferably, there is an installation gap between the end face of the mounting protrusion 50 and the opening of the fuel container 5, one end of the detection tube 6 is sleeved inside the fuel container 5 and located within the installation gap, and a clamping member is provided on the outside of the fuel container 5 to fix the detection tube 6 inside the fuel container 5.

[0033] One end of the detection tube 6 has a limiting ring 60 extending radially inward, which abuts against the fixing ring 9.

[0034] Preferably, the inner diameter of the limiting ring 60 is smaller than the inner diameter of the fixing ring 9, that is, the sealing film 3 has a portion opposite to the limiting ring 60. Preferably, the fixing ring 9 for fixing the sealing film 3 includes a back ring and a front ring, and the sealing film 3 is fixed between the back ring and the front ring.

[0035] Preferably, a clamping mechanism for the test piece is detachably installed inside the test tube 6 to fix the clamping component for the test piece.

[0036] Preferably, the detection component clamping mechanism includes an upper fixing member 10 and a lower fixing member 11 installed inside the detection tube 6. One end of the detection component is detachably installed on the upper fixing member 10, and the other end of the detection component is detachably installed on the lower fixing member 11. Specifically, the detection component can be fixed on the upper fixing member 10 and the lower fixing member 11 by screws or fixing pins.

[0037] Preferably, the device further includes a first pulling member 12 threadedly installed on the side wall of the detection tube 6. Specifically, the first pulling member 12 is a screw, and the upper fixing member 10 is rotatably installed at the end of the first pulling member 12. Rotating the first pulling member 12 causes the upper fixing member 10 to move upward or downward. The device also includes a second pulling member 13 threadedly installed on the side wall of the detection tube 6. The lower fixing member 11 is rotatably installed at the end of the second pulling member 13. The second pulling member 13 is also a screw, and rotating the second pulling member 13 causes the lower fixing member 11 to move upward or downward. The first pulling member 12 and the second pulling member 13 have portions located outside the detection tube. The first pulling member 12 and the second pulling member 13 facilitate the adjustment of the distance between the upper fixing member 10 and the lower fixing member 11, thereby facilitating the installation of the detection member. On the other hand, after the detection member is fixed between the upper fixing member 10 and the lower fixing member 11, the first pulling member 12 and the second pulling member 13 can be rotated to pull the detection member and thus detect the transient high-temperature impact performance of the detection member under different stress states.

[0038] Preferably, a conical guide tube 14 is detachably installed at the end of the detection tube 6 away from the fuel container 5. The outer diameter of the conical guide tube 14 gradually increases from the end near the detection tube 6 to the end away from the detection tube 6. If the elastic limiting plate 8 is damaged, the conical guide tube 14 can play a limiting role to prevent the detection tube 6 from disengaging from the sliding hole 70.

[0039] Preferably, a flow channel is formed between the inner walls of the outer detection channel 2 of the detection element.

[0040] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A composite material transient high temperature impactor apparatus, characterized by, It comprises a fuel containing cavity (1) and a detection channel (2), the fuel containing cavity (1) has combustible gas and oxygen, one end of the fuel containing cavity (1) is provided with a sealing film (3) for separating the fuel containing cavity (1) and the detection channel (2); The detection channel (2) is provided with a detection piece, and a ignition piece (4) for igniting the combustible gas in the fuel containing cavity (1), after the ignition piece (4) ignites the combustible gas in the fuel containing cavity (1), the high-temperature gas breaks through the sealing film (3) and performs high-temperature transient impact on the detection piece in the detection channel (2); It also comprises a fuel containing cylinder (5) and a detection tube (6), the sealing film (3) is installed at one end close to the opening of the fuel containing cylinder (5), the sealing film (3) and the fuel containing cylinder (5) form a fuel cavity, the detection tube (6) is detachably installed on the fuel containing cylinder (5), and the ignition piece (4) is installed at one end of the fuel containing cylinder (5) away from the sealing film (3); The detection tube (6) is detachably provided with a detection piece clamping mechanism for fixing the detection piece clamping piece; the detection piece clamping mechanism comprises an upper fixing piece (10) and a lower fixing piece (11) installed in the detection tube (6), one end of the detection piece is detachably installed on the upper fixing piece (10), and the other end of the detection piece is detachably installed on the lower fixing piece (11); It also comprises a first pulling piece (12) installed on the side wall of the detection tube (6) in a threaded manner, the upper fixing piece (10) is rotatably installed at the end of the first pulling piece (12), and rotating the first pulling piece (12) drives the upper fixing piece (10) to move upward or downward; It also comprises a second pulling piece (13) installed on the side wall of the detection tube (6) in a threaded manner, the lower fixing piece (11) is rotatably installed at the end of the second pulling piece (13), and rotating the second pulling piece (13) drives the lower fixing piece (11) to move upward or downward.

2. The composite material transient high temperature impact device of claim 1, wherein, The fuel containing cylinder (5) has a mounting protrusion (50), the sealing film (3) is fixed on a fixing ring (9), and the fixing ring (9) is fixed on the mounting protrusion (50).

3. The composite material transient high temperature impact device of claim 2, wherein, The mounting protrusion (50) has a mounting interval on the end face of the opening of the fuel containing cylinder (5), one end of the detection tube (6) is sleeved in the fuel containing cylinder (5) and located in the mounting interval, and the outer side of the fuel containing cylinder (5) is provided with a clamping piece for fixing the detection tube (6) in the fuel containing cylinder (5); One end of the detection tube (6) has a limiting ring (60) extending radially inward, and the limiting ring (60) abuts against the fixing ring (9).

4. The composite material transient high temperature impact device of claim 3, wherein, The inner diameter of the limiting ring (60) is smaller than the inner diameter of the fixing ring (9).

5. The composite material transient high temperature impact device of claim 1, wherein, A guide channel is formed between the inner walls of the detection channel (2) on the outer side of the detection piece.

6. The composite material transient high temperature impact device of claim 1, wherein, The combustible gas in the containing cavity is propane.

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