High-temperature reciprocating dynamic seal test device

Abstract

The invention relates to the technical field of sealing tests, in particular to a high-temperature reciprocating dynamic sealing test device which comprises a first shell and a second shell which are connected, the first shell is provided with a first cavity, the second shell is provided with a second cavity, and the second cavity is connected with a high-temperature gas output end; the partition plate is arranged at the joint of the first shell and the second shell, and a mounting opening is formed in the partition plate; the mounting assembly is arranged in the mounting opening and is suitable for mounting the sealing element to be tested in the mounting opening; one end of the force application assembly is in contact with the to-be-tested sealing element, the other end of the force application assembly is arranged on the first shell, and the force application assembly is suitable for moving relative to the to-be-tested sealing element under the action of external force; and the measuring assembly is arranged in the first cavity and is suitable for measuring parameters of gas leaked from the contact surface of the to-be-measured sealing element and the force application assembly. The dynamic seal test device solves the problems that an existing dynamic seal test device can only test an annular seal ring and cannot test a linear high-temperature metal dynamic seal and other types of seal rings, and the applicability is poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sealing test, in particular to a high-temperature reciprocating dynamic sealing test device. BACKGROUND

[0002] With the development of aerospace propulsion technology, people are tirelessly pursuing to develop higher performance aerospace vehicles, and the safety and reliability performance of the aerospace vehicles during service must be guaranteed, so sealing technology has become one of the key elements affecting the flight safety performance. Among them, the tail nozzle is a key component of the aero-engine, and the sealing structure used at the engine nozzle is mostly a sealing sheet. The sealing sheet is an important part in the tail nozzle component unit body, which controls the movement of the tail nozzle together with the adjusting sheet, connecting piece and short rod, and it often needs to work under the conditions of high temperature, pressure difference and large side wall displacement. In addition, due to the large number of tail nozzle parts, special and complex structure (adjusting sheet and sealing sheet are nested with each other), and high assembly accuracy required, the part size tolerance, surface roughness and friction resistance between the adjusting sheet and the sealing sheet are closely related, and the friction and wear problem is particularly serious for the vector or variable structure tail nozzle. If the sealing sheet fails, it will have a serious impact on the overall performance, service life and reliability of the engine.

[0003] Among them, the reciprocating motion sealing is the most common sealing structure form in industry, which often uses rubber ring, slip ring and other parts to form a dynamic sealing structure, such as slip ring combined sealing, type combined sealing, car type sealing, etc., which has been widely used in aviation hydraulic actuators and other components. In view of this, the flow path sealing technology of reciprocating high-temperature components is considered to be applied to the sealing design of tail nozzle components. However, the traditional dynamic sealing structure is difficult to withstand high temperature due to the use of rubber sealing ring, for example, the heat-resistant fluorine rubber used to make the sealing ring can only withstand a temperature of 300℃ for a short period of time. In addition, the O-ring made of metal hollow tube has the characteristics of high temperature resistance and good resilience, but this structure cannot have heat insulation effect at the same time.

[0004] Considering the high temperature, high pressure difference and large wall displacement conditions of the tail nozzle sealing surface, the general dynamic sealing structure is difficult to work normally, therefore, in view of the structural characteristics of the tail nozzle sealing, it is very meaningful to carry out related research work such as design, manufacture and test verification of high-temperature reciprocating dynamic sealing under the conditions of extremely high temperature, aerodynamic load and pressure fluctuation load, as well as potential flutter, vibration and chemical corrosion (such as oxidation, hydrogen embrittlement, etc.) environment.

[0005] However, the existing high-temperature reciprocating dynamic sealing product performance sealing test system or tool can only test the annular sealing ring of a single size specification, and cannot test the linear high-temperature metal dynamic sealing and other types of sealing rings. SUMMARY

[0006] Therefore, the high-temperature reciprocating dynamic sealing test device is provided to solve the problem that the existing dynamic sealing test device can only test the annular sealing ring and cannot test the linear high-temperature metal dynamic sealing and other types of sealing rings, and the applicability is poor.

[0007] To this end, the high-temperature reciprocating dynamic sealing test device comprises: The first shell and the second shell are connected, the first shell has a first cavity, and the second shell has a second cavity connected with the high-temperature gas output end; The partition plate is arranged at the connection of the first shell and the second shell, and the partition plate is provided with a mounting port adapted to communicate the first cavity and the second cavity; The mounting assembly is arranged in the mounting port and is adapted to mount the to-be-tested sealing member in the mounting port; The force applying assembly is arranged at one end of the to-be-tested sealing member and at the other end of the first shell, and is adapted to relatively move with the to-be-tested sealing member under the action of an external force; The measuring assembly is arranged in the first cavity and is adapted to measure the gas parameters leaked from the contact surface between the to-be-tested sealing member and the force applying assembly.

[0008] The high-temperature reciprocating dynamic sealing test device provided by the application mounts the to-be-tested sealing member in the mounting port of the partition plate through the mounting assembly, so that whether the to-be-tested sealing member is an annular sealing ring or a linear or other type of sealing ring, the to-be-tested sealing member can be fixed through the mounting assembly and the partition plate, thereby improving the applicability of the test device; after the to-be-tested sealing member is fixed, the high-temperature gas is input into the second cavity, and the to-be-tested sealing member is subjected to a friction force through the force applying assembly, thereby simulating the use of the to-be-tested sealing member in a real environment; the gas leaked from the contact surface between the to-be-tested sealing member and the force applying assembly enters the first cavity, and the measuring assembly measures the corresponding gas parameters, thereby providing a reference basis for the actual application of the to-be-tested sealing member.

[0009] In an optional embodiment, the mounting assembly comprises a mounting seat adapted to be fixed with the mounting port, and the mounting seat is provided with a receiving space of the to-be-tested sealing member.

[0010] Due to different shapes and sizes of the to-be-tested seal, if the to-be-tested seal is directly fixed with the installation port, a plurality of different specifications of parts need to be configured, the operation is complex, and the cost is high. To solve the problem, the mounting seat capable of accommodating the to-be-tested seal is arranged, the mounting seat can play a role of transition connection, when the size of the to-be-tested seal is insufficient to be directly installed on the installation port, the mounting seat can play a certain lap joint role, thereby improving the applicability of the device.

[0011] In an alternative embodiment, the mounting assembly further comprises a first connecting piece adapted to connect the to-be-tested seal with the mounting seat, and the first connecting piece is detachably connected with the mounting seat.

[0012] The first connecting piece can directly fix the edge of the to-be-tested seal with the mounting seat, so as to ensure that the position of the to-be-tested seal will not change during the test.

[0013] In an alternative embodiment, the mounting seat comprises a first main body portion adapted to accommodate the to-be-tested seal, a first horizontal plate adapted to be lap-joint fixed on the partition plate, and a second horizontal plate extending towards the center of the installation port, and the first connecting piece fixes one end of the to-be-tested seal on the second horizontal plate through a fastener.

[0014] For the irregular curve type seal ring, due to the irregular structure and certain arc, the end portion thereof is fixed on the second horizontal plate of the mounting seat through the first connecting piece, the connection is convenient and reliable, and the installation space of the remaining portion is reserved.

[0015] In an alternative embodiment, the mounting seat comprises a second main body portion adapted to accommodate the to-be-tested seal, and a third horizontal plate adapted to be lap-joint fixed on the partition plate, and the first connecting piece fixes the to-be-tested seal in the second main body portion through a fastener.

[0016] For the linear type seal ring, due to the flat shape and irregular shape, the linear type seal ring is fixed in the second main body portion of the mounting seat through the first connecting piece, which is convenient for installation and assembly of the later force applying assembly, and reduces the operation difficulty.

[0017] In an alternative embodiment, the force applying assembly comprises a moving plate and an actuator connected with the moving plate, the moving plate is detachably connected with the actuator through a second connecting piece, and the moving plate is in contact with the to-be-tested seal.

[0018] The actuator continuously applies reciprocating force to the moving plate, so as to simulate the stress condition of the to-be-tested seal in the real environment, which is more real and reliable; when the test is completed, the actuator and the moving plate can be detached, which is convenient for storage.

[0019] In an alternative embodiment, the actuator is provided with a force sensor.

[0020] The force sensor monitors the force applied by the motion plate to the to-be-tested seal under the action of the actuator in real time, so as to realize real-time monitoring of the friction suffered by the to-be-tested seal, and further estimate the service life of the to-be-tested seal.

[0021] In an alternative embodiment, a high-temperature gas supply assembly is further included, which comprises a gas cylinder, a first conveying pipe, a heater and a second conveying pipe arranged in sequence, and the outlet of the second conveying pipe is communicated to the second cavity.

[0022] The gas in the gas cylinder is heated by the heater and then conveyed to the second cavity, and the gas temperature can be adjusted by adjusting the power of the heater, so that the test performance of the to-be-tested seal under different temperatures can be simulated and tested, meeting the actual demand.

[0023] In an alternative embodiment, a valve is arranged on the first conveying pipe, and the second conveying pipe is a heat-resistant corrugated pipe.

[0024] The valve can be flexibly adjusted to adjust the flow rate and speed of the gas entering the second cavity, and the heat-resistant corrugated pipe ensures the temperature of the gas heated by the heater, thereby ensuring the reliability of the test.

[0025] In an alternative embodiment, the measuring assembly comprises a mass flow meter and a pressure gauge.

[0026] The flow meter and the pressure gauge can be arranged to monitor the flow rate and pressure of the gas leaked into the first cavity in real time, providing a reference basis for evaluating the performance of the to-be-tested seal. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0028] Figure 1 It is a schematic diagram of the high-temperature reciprocating dynamic seal test device of the embodiment of the present application; Figure 2 It is a semi-partial schematic diagram of the internal structure of the first shell, the second shell and the actuator; Figure 3 It is a schematic diagram of the first embodiment of the to-be-tested seal connected with the partition plate; Figure 4 It is a schematic diagram of the second embodiment of the to-be-tested seal connected with the partition plate; Figure 5 It is a schematic diagram of the third embodiment of the to-be-tested seal connected with the partition plate; Figure 6 Fig. 4 is a schematic view of a fourth embodiment in which the to-be-tested seal is connected to the partition plate; Figure 7 Fig. 5 is a schematic view of a force applying assembly.

[0029] Legend of reference signs: 1, first housing; 2, second housing; 3, partition plate; 4, mounting assembly; 401, mounting seat; 402, first connecting piece; 5, to-be-tested seal; 6, force applying assembly; 601, moving plate; 602, actuator; 603, second connecting piece; 604, force sensor; 605, L-shaped angle plate; 7, measuring assembly; 8, high-temperature gas supply assembly; 801, first conveying pipe; 802, heater; 803, second conveying pipe; 804, valve; 9, control cabinet. DETAILED DESCRIPTION

[0030] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0031] The embodiments of the present application will be described below with reference to Figures 1 to 7 .

[0032] The high-temperature reciprocating dynamic seal test device provided by the embodiments of the present application has a wide range of applications, which can be used not only for ordinary annular sealing rings but also for irregular curve type or flat linear type sealing rings, and the to-be-tested seal in the embodiments is a sealing ring made of metal material with high-temperature and high-pressure resistance, which is mainly applied to the tail nozzle of an aero-engine.

[0033] According to the embodiments of the present application, a high-temperature reciprocating dynamic seal test device is provided, as shown in Figure 1 and Figure 2 , comprising: a first housing 1 and a second housing 2 connected and arranged, the first housing 1 has a first cavity, and the second housing 2 has a second cavity, the second cavity is connected with a high-temperature gas output end; a partition plate 3 arranged at the connection between the first housing 1 and the second housing 2, the partition plate 3 is provided with a mounting port, the mounting port is adapted to communicate the first cavity and the second cavity; a mounting assembly 4 arranged in the mounting port and adapted to mount a to-be-tested seal 5 in the mounting port; The force applying assembly 6 is arranged in contact with the to-be-tested seal 5 at one end and is arranged on the first shell 1 at the other end, and is suitable for relative movement with the to-be-tested seal 5 under the action of external force; The measuring assembly 7 is arranged in the first cavity and is suitable for measuring the gas parameters leaked from the contact surface between the to-be-tested seal 5 and the force applying assembly 6.

[0034] The first shell 1 and the second shell 2 are arranged in an up-down manner, and both have good sealing performance, and the connecting parts are all provided with sealing rings, such as rubber rings, flexible graphite rings and the like, so as to ensure that the high-temperature gas can only leak from the contact surface between the to-be-tested seal 5 and the force applying assembly 6. Figure 1 It can be known that the circumferential direction of the first shell 1 is provided with two flange interfaces, the axes of the two flange interfaces are arranged perpendicularly to each other, and the measuring assembly 7 is arranged at the flange interfaces, so as to facilitate the measurement of the physical parameters of the leaked gas. Of course, the number of the flange interfaces can be increased according to actual needs, and the distribution positions of the flange interfaces can also be symmetrically distributed or distributed at any included angle, which is not limited specifically herein. The circumferential direction of the second shell 2 is provided with three flange interfaces, and the bottom is provided with one flange interface, which is connected with the high-temperature gas output end, so as to introduce the high-temperature gas into the second cavity. The three flange interfaces in the circumferential direction are in turn a gas discharge port, a temperature measurement port and a pressure measurement port, and a thermometer and a pressure gauge can be respectively installed at the temperature measurement port and the pressure measurement port, so as to monitor the temperature and pressure of the high-temperature gas in real time.

[0035] The shape and size of the partition plate 3 are consistent with the connecting parts of the first shell 1 and the second shell 2, and the partition plate 3 is used for separating the first cavity and the second cavity, and a rectangular mounting port is formed in the center.

[0036] The high-temperature reciprocating dynamic seal test device provided by the application installs the to-be-tested seal 5 in the mounting port of the partition plate 3 through the mounting assembly 4, so that whether the to-be-tested seal 5 is a ring-shaped sealing ring or a linear or other type sealing ring, the to-be-tested seal 5 can be fixed through the mounting assembly 4 and the partition plate 3, and the applicability of the test device is improved. After the to-be-tested seal 5 is fixed, the high-temperature gas is input into the second cavity, and at the same time, the to-be-tested seal 5 is subjected to frictional force by the force applying assembly 6, so as to simulate the use condition of the to-be-tested seal 5 in a real environment. The gas leaked from the contact surface between the to-be-tested seal 5 and the force applying assembly 6 enters the first cavity, and the measuring assembly 7 measures the corresponding gas parameters, so as to provide a reference basis for the actual application of the to-be-tested seal 5.

[0037] In one embodiment, the mounting assembly 4 includes a mounting seat 401 suitable for being fixed with the mounting port, and the mounting seat 401 is provided with a containing space for the to-be-tested seal 5.

[0038] The mounting seat 401 is fixed with the edge of the mounting port by a fastener such as a screw, and an insertion space for the to-be-tested sealing member 5 is reserved in the middle, the size of the insertion space is matched with the size of the to-be-tested sealing member 5. The mounting seat 401 is made of metal.

[0039] Since the shape and size of the to-be-tested sealing member 5 are different, if the to-be-tested sealing member 5 is directly fixed with the mounting port, a plurality of different specifications of parts need to be configured, the operation is complex, and the cost is high. To solve the problem, the mounting seat 401 capable of accommodating the to-be-tested sealing member 5 is arranged, the mounting seat 401 can play a role of transition connection, when the size of the to-be-tested sealing member 5 is insufficient to be directly mounted on the mounting port, the mounting seat 401 can play a certain lapping role, thereby improving the applicability of the device.

[0040] In an embodiment, the mounting assembly 4 further comprises a first connecting piece 402 adapted to connect the to-be-tested sealing member 5 with the mounting seat 401, and the first connecting piece 402 is detachably connected with the mounting seat 401.

[0041] The first connecting piece 402 is also made of metal, and can directly fix the edge of the to-be-tested sealing member 5 with the mounting seat 401 by a screw, so as to ensure that the position of the to-be-tested sealing member 5 will not change during the test.

[0042] In an embodiment, as shown in Figure 3 The mounting seat 401 comprises a first main body part adapted to accommodate the to-be-tested sealing member 5, a first horizontal plate adapted to be lapped and fixed on the partition plate 3, and a second horizontal plate extending towards the center of the mounting port, and the first connecting piece 402 fixes one end of the to-be-tested sealing member 5 on the second horizontal plate by a fastener.

[0043] The mounting seat 401 is rectangular, the first horizontal plate is mounted on the mounting port by a screw, and the length of the part of the first horizontal plate lapped on the partition plate 3 is greater than the length of the second horizontal plate, so as to reserve sufficient space for the installation of the to-be-tested sealing member 5 while ensuring that the mounting seat 401 is firmly connected with the partition plate 3. The first connecting piece 402 comprises two strip-shaped plates with lengths less than the long side of the rectangular mounting seat 401, and the strip-shaped plates are covered on the first horizontal plate by a fastener such as a screw, so as to fix the to-be-tested sealing member 5 at a predetermined position.

[0044] For the curve type sealing ring with irregular shape, since the structure is irregular and has a certain arc, the end part of the sealing ring is fixed on the second horizontal plate of the mounting seat 401 by the first connecting piece 402, the connection is convenient and reliable, and the installation space of the remaining part is reserved. The sealing ring in the embodiment is symmetrically arranged in two, one end of the sealing ring is fixed on the second horizontal plate, the other end is arranged at intervals, so as to reserve the insertion space of the force applying assembly and apply a certain clamping force to the force applying assembly, and the arc-shaped main body is accommodated in the first main body part of the mounting seat 401.

[0045] In one embodiment, as shown in Figure 4 The mounting seat 401 includes a second body part adapted to accommodate the seal 5 to be tested and a third horizontal plate adapted to be fixed on the partition plate 3 by lapping, and the first connecting member 402 fixes the seal 5 to be tested in the second body part by fasteners.

[0046] The second body part is embedded in the mounting port, the third horizontal plate is mounted on the partition plate 3 by screws, and the central part of the second body part is reserved for the insertion space of the force applying assembly 6. The insertion space can also serve as a gas circulation channel. By changing the pressure of the high-temperature gas entering the second cavity, the sealing performance of the seal under different pressures can be measured. The first connecting member 402 includes two strip-shaped plates with a length less than that of the third horizontal plate. The strip-shaped plates are covered on the bottom plate of the second body part by screws and the like fasteners, and the horizontal position of the strip-shaped plates is lower than that of the third horizontal plate.

[0047] For a straight seal ring, since it is flat and irregular in shape, one end is an opening and the other end is a flat plate. The opening end is clamped on the edge of the first connecting member 402, and is fixed in the second body part of the mounting seat 401 by the first connecting member 402 and screws. This not only facilitates its own installation, but also facilitates the assembly of the force applying assembly in the later stage, reducing the operation difficulty.

[0048] In one embodiment, as shown in Figure 5 The mounting space of the mounting seat 401 is consistent with the annular seal ring, and the central part is reserved for the insertion space of the force applying assembly 6.

[0049] For a common annular seal ring, since its size and shape are consistent with the size and shape of the mounting space of the mounting seat 401, it can be directly pressed into the mounting seat 401 for fixation, which is convenient and fast.

[0050] In one embodiment, as shown in Figure 6 One end of the seal ring is also provided with a wave-shaped ring. The wave-shaped ring and the seal ring are jointly pressed in the mounting space of the mounting seat 401, and the central part is reserved for the insertion space of the force applying assembly 6.

[0051] In one embodiment, as shown in Figure 7 The force applying assembly 6 includes a moving plate 601 and an actuator 602 connected with the moving plate 601. The moving plate 601 is detachably connected with the actuator 602 through a second connecting member 603, and the moving plate 601 is in contact with the seal 5 to be tested.

[0052] The motion plate 601 is a flat plate, and the thickness and size are appropriate for being clamped in the to-be-tested seal 5. The second connecting member 603 is a connecting shaft, and the two ends of the connecting shaft are respectively provided with mounting holes suitable for being connected with the motion plate 601 and the actuator 602. The actuator 602 can reciprocate along the connecting direction of the first shell 1 and the second shell 2 under the action of an external force, so as to drive the motion plate 601 to exert reciprocating friction force on the to-be-tested seal 5 through the connecting shaft. In order to facilitate the installation of the connecting shaft, the top of the first shell 1 is provided with a through hole allowing the connecting shaft to penetrate through, and a sealing ring is arranged at the through hole.

[0053] The actuator 602 continuously exerts reciprocating force on the motion plate 601, so as to simulate the force condition of the to-be-tested seal in a real environment, and the simulation is more real and reliable. When the test is completed, the actuator 602 and the motion plate 601 can be disassembled, and the storage is facilitated.

[0054] In an embodiment, the actuator 602 is provided with a force sensor 604.

[0055] In order to facilitate the installation of the force sensor 604, an L-shaped angle plate 605 is arranged at the bottom of the actuator 602. One side of the L-shaped angle plate 605 is connected to the side of the actuator 602, and the other side is fixed with the force sensor 604, and the other side is further provided with a mounting column connected with the connecting shaft.

[0056] The force sensor 604 monitors the force exerted by the motion plate 601 on the to-be-tested seal 5 under the action of the actuator 602 in real time, so as to realize real-time monitoring of the friction force suffered by the to-be-tested seal 5, and further estimate the service life of the to-be-tested seal 5.

[0057] In an embodiment, a high-temperature gas supply assembly 8 is further included, and the high-temperature gas supply assembly 8 includes a gas cylinder, a first conveying pipe 801, a heater 802 and a second conveying pipe 803 arranged in sequence, and the outlet of the second conveying pipe 803 is communicated to the second cavity.

[0058] The heater 802 can be provided with one or more according to actual needs. The gas in the gas cylinder is conveyed into the second cavity after being heated by the heater 802, and the gas temperature can be adjusted by adjusting the power of the heater 802, so that the test performance of the to-be-tested seal 5 under different temperatures can be simulated and tested, and the actual needs can be met.

[0059] In an embodiment, a valve 804 is arranged on the first conveying pipe 801, and the second conveying pipe 803 is a heat-resistant corrugated pipe.

[0060] The valve 804 is a hand valve, and can also be an electronic valve. The valve 804 can be flexibly adjusted to adjust the flow and rate of the gas entering the second cavity, and the heat-resistant corrugated pipe ensures the temperature of the gas heated by the heater 802, and further ensures the reliability of the test.

[0061] In one embodiment, the measuring assembly 7 comprises a mass flow meter and a pressure gauge.

[0062] The settings of the flow meter and the pressure gauge can monitor the flow and pressure of the leaked gas into the first cavity in real time, providing a reference basis for evaluating the performance of the to-be-tested seal 5. The mass flow meter can be arranged at the inlet of the first cavity or at the outlet of the first cavity, which is not specifically limited here.

[0063] In addition, the device is also provided with a control cabinet 9, which is in signal connection with the valve 804 and the measuring assembly 7, and is used for adjusting the opening degree of the valve 804 according to the actually measured amount and pressure of the leaked gas.

[0064] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A high-temperature reciprocating dynamic seal testing device, characterized in that, include: A first housing (1) and a second housing (2) are connected together. The first housing (1) has a first cavity, and the second housing (2) has a second cavity. The second cavity is connected to a high-temperature gas output terminal. A partition (3) is provided at the connection between the first housing (1) and the second housing (2). The partition (3) is provided with an installation port, which is suitable for connecting the first cavity and the second cavity. Mounting component (4), disposed in the mounting port, is adapted to mount the seal to be tested (5) in the mounting port; The force application component (6) has one end in contact with the seal to be tested (5) and the other end on the first housing (1), and is adapted to move relative to the seal to be tested (5) under the action of external force; The measuring component (7), located in the first cavity, is adapted to measure the gas parameters leaking from the contact surface between the seal to be tested (5) and the force application component (6).

2. The high-temperature reciprocating dynamic sealing test device according to claim 1, characterized in that, The mounting assembly (4) includes a mounting base (401) adapted to be fixed to the mounting port, wherein the mounting base (401) has a receiving space for the seal to be tested (5).

3. The high-temperature reciprocating dynamic sealing test device according to claim 2, characterized in that, The mounting assembly (4) further includes a first connector (402) adapted to connect the seal to be tested (5) to the mounting base (401), the first connector (402) being detachably connected to the mounting base (401).

4. The high-temperature reciprocating dynamic sealing test device according to claim 3, characterized in that, The mounting base (401) includes a first main body adapted to accommodate the seal to be tested (5), a first horizontal plate adapted to overlap and be fixed on the partition (3), and a second horizontal plate extending toward the center of the mounting port. The first connector (402) fixes one end of the seal to be tested (5) to the second horizontal plate by fasteners.

5. The high-temperature reciprocating dynamic sealing test device according to claim 3, characterized in that, The mounting base (401) includes a second main body adapted to accommodate the seal to be tested (5) and a third horizontal plate adapted to overlap and fix on the partition (3), wherein the first connector (402) fixes the seal to be tested (5) in the second main body by fasteners.

6. The high-temperature reciprocating dynamic sealing test apparatus according to any one of claims 1-5, characterized in that, The force application component (6) includes a motion plate (601) and an actuator (602) connected to the motion plate (601). The motion plate (601) is detachably connected to the actuator (602) via a second connector (603), and the motion plate (601) is in contact with the seal to be tested (5).

7. The high-temperature reciprocating dynamic sealing test device according to claim 6, characterized in that, The actuator (602) is equipped with a force sensor (604).

8. The high-temperature reciprocating dynamic sealing test apparatus according to any one of claims 1-5, characterized in that, It also includes a high-temperature gas supply component (8), which includes a gas storage cylinder, a first delivery pipe (801), a heater (802), and a second delivery pipe (803) arranged in sequence. The outlet of the second delivery pipe (803) is connected to the second cavity.

9. The high-temperature reciprocating dynamic sealing test device according to claim 8, characterized in that, The first conveying pipe (801) is equipped with a valve (804), and the second conveying pipe (803) is a heat-resistant corrugated pipe.

10. The high-temperature reciprocating dynamic sealing test apparatus according to any one of claims 1-5, characterized in that, The measuring components (7) include a mass flow meter and a pressure gauge.

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