A device for testing rotating parts in high temperature environments

Abstract

The application provides a device for testing a rotating part in a high-temperature environment, comprising: a test section for providing a simulated high-temperature environment for the rotating part, and provided with a first through hole and a second through hole; a first tension assembly for pulling an end of the rotating part extending out of the first through hole; a second tension assembly for pulling an end of the rotating part extending out of the second through hole; a first sleeve connected outside the first through hole and sleeved outside the first tension assembly, and provided with at least one first air inlet channel; a second sleeve connected outside the second through hole and sleeved outside the second tension assembly, and provided with at least one second air inlet channel; and an air pressure source connected to the at least one first air inlet channel and / or the at least one second air inlet channel and providing an air pressure greater than or equal to the environmental pressure in the test section. The application can accurately simulate the thermal-mechanical coupling loading environment in which the rotating part is in actual work, and effectively improve the reliability and accuracy of the test results.

Description

Technical Field

[0001] This invention relates to the technical field of aero-engines, and more specifically to an apparatus for testing rotating components in high-temperature environments. Background Technology

[0002] With the rapid development of the modern aviation industry and the urgent needs of national defense, increasingly higher requirements are being placed on the performance of aero-engines. Aero-engine turbine blades are subjected to rapid scouring by high-temperature exhaust gases during startup and rapid cooling during shutdown. During the startup-shutdown cycle, the large temperature gradient on the blades generates significant thermal stress, leading to thermal fatigue. Therefore, thermal shock tests are necessary to assess the blades' resistance to thermal shock. Furthermore, the high-speed rotation of the blades generates substantial centrifugal loads. The combined effect of the temperature gradient and mechanical loads results in thermomechanical coupled fatigue of the blades. Therefore, thermomechanical coupled tests are required to assess the thermomechanical fatigue performance of the blades.

[0003] Currently, traditional methods for thermo-mechanical coupling fatigue testing of turbine blades are insufficient to simulate the temperature field experienced by turbine blades in actual engine operation, hindering further improvements in the reliability and accuracy of the test results. Therefore, it is necessary to provide a device for testing rotating components in high-temperature environments. Summary of the Invention

[0004] One aspect of the embodiments of this specification discloses an apparatus for testing rotating components in high-temperature environments, comprising:

[0005] The test section is used to provide a simulated high-temperature environment for the rotating part. The test section is hollow, and a first through hole and a second through hole are respectively opened on its opposite side walls.

[0006] A first tension component is used to hold the end of the rotating member that extends out of the first through hole;

[0007] The second tension component is used to hold the end of the rotating member that extends out of the second through hole;

[0008] The first sleeve is connected to the outside of the first through hole and sleeved on the outside of the first tension component. The first sleeve is provided with at least one first air intake channel in the circumferential direction.

[0009] The second sleeve is connected to the outside of the second through hole and sleeved on the outside of the second tension component. The second sleeve is provided with at least one second air intake channel in the circumferential direction.

[0010] A pressure source is provided, which is connected to the at least one first air intake channel and / or the at least one second air intake channel and provides an air pressure greater than or equal to the ambient pressure within the test section.

[0011] In some embodiments, a pressure sensor is provided in the test section to transmit pressure signals to the air pressure source for dynamic adjustment of air pressure.

[0012] In some embodiments, the first air intake channel has multiple channels that are evenly distributed on the circumferential surface of the first sleeve; the second air intake channel has multiple channels that are evenly distributed on the circumferential surface of the second sleeve.

[0013] In some embodiments, the cross-section of the test section is fan-shaped.

[0014] In some embodiments, the rotating component sequentially includes a first connecting segment, a main body end, and a second connecting segment. The first tension component is connected to the first connecting segment, and the second tension component is connected to the second connecting segment. The test segment has at least one simulation component with the same shape and structure as the main body end on opposite sides of the main body end in the lateral direction to simulate the actual working environment of the main body end.

[0015] In some embodiments, the test section includes a front end channel and a rear end channel, the front end channel and the rear end channel are connected and their axes form an angle, and the first through hole and the second through hole are disposed at the connection between the front end channel and the rear end channel.

[0016] In some embodiments, the included angle is determined based on the angle between the tangent at one end of the central arc line in the cross-section of the rotating member and the tangent at the other end of the central arc line.

[0017] In some embodiments, the first tension component is detachably connected to the rotating component via a pin, and the second tension component is mortised and tenoned to the rotating component; or

[0018] The first tension component is mortised and tenoned to the rotating component, and the second tension component is detachably connected to the rotating component via a pin.

[0019] In some embodiments, the first tension component is detachably connected to the rotating component via a pin, and the second tension component is detachably connected to the rotating component via a pin; or

[0020] The first tension component is mortised and tenoned with the rotating component, and the second tension component is mortised and tenoned with the rotating component.

[0021] In some embodiments, the first tension component is fitted with a third sleeve, the third sleeve being connected to the first sleeve, and the inner annular surface of the third sleeve is provided with serrations to form a serration sealing structure; and / or

[0022] The second tension component is fitted with a fourth sleeve, which is connected to the second sleeve. The inner circumferential surface of the fourth sleeve is provided with grates to form a grating sealing structure.

[0023] The embodiments described in this specification can achieve at least the following beneficial effects:

[0024] This invention, by setting a first sleeve and a second sleeve in a hollow test section, and supplying air pressure to the first and second air intake channels with air pressure matching the high-temperature environment in the test section, enables the air pressure in the test section to achieve dynamic balance with the air pressure in the first sleeve and / or the second sleeve. This can effectively prevent high-temperature gas leakage, accurately simulate the temperature field of turbine blades in actual engine operation, and effectively improve the reliability and accuracy of test results.

[0025] This invention can also reduce the temperature of the tension component, enabling it to operate in a safe and reliable working environment, ensuring that the service life of the tension component is greater than that of the blade, allowing the tension component to be reused, and effectively reducing testing costs. Attached Figure Description

[0026] Figure 1 This is an application scenario diagram of an apparatus for testing rotating parts in high-temperature environments, as described in some embodiments of this specification.

[0027] Figure 2 This is a schematic diagram of the apparatus for testing rotating parts in high-temperature environments, as described in some embodiments of this specification.

[0028] Figure 3 This is a schematic diagram of the structure of the simulated components involved in some embodiments of this specification.

[0029] Figure 4 This is a schematic diagram of the assembly structure of the first tension component, the second tension component, and the rotating component involved in some embodiments of this specification.

[0030] Figure 5 This is an exploded structural diagram of the first tension component, the second tension component, and the rotating component involved in some embodiments of this specification.

[0031] Figure 6 for Figure 1 A schematic diagram of the local cross-sectional structure at point AA.

[0032] Figure 7This is a schematic diagram of the rotating component involved in some embodiments of this specification.

[0033] Figure 8 This is a schematic diagram of the structure of the test section involved in some embodiments of this specification.

[0034] Figure 9 for Figure 8 A schematic diagram of the local cross-sectional structure at point BB.

[0035] Figure 10 This is a schematic diagram illustrating the supply of gas from a pressure source to a test section in some embodiments of this specification.

[0036] Figure label:

[0037] 100. Apparatus for testing rotating parts in high-temperature environments; 110. Pressure source; 120. Combustion section; 130. Test apparatus; 140. Cooling section; 150. Exhaust section;

[0038] 131. Test section; 132. First tension assembly; 133. Second tension assembly; 134. First sleeve; 135. Second sleeve; 136. Air pressure source;

[0039] 210. First air intake channel; 220. Second air intake channel; 230. Third sleeve; 240. Fourth sleeve; 250. Liquid inlet pipe; 260. Liquid outlet pipe;

[0040] 310. Simulation parts;

[0041] 510. Rotating component; 511. First connecting section; 512. Main body end; 513. Second connecting section; 520. Tenon; 530. Mortise; 540. Protrusion; 541. First positioning hole; 550. Connecting rod; 551. Groove; 552. Second positioning hole; 560. Pin;

[0042] 610. Front-end channel; 620. Back-end channel;

[0043] 710, Liquid cooling channel; 720, First through hole; 730, Second through hole; 740, Grate teeth. Detailed Implementation

[0044] The technical solution of this specification is described in further detail below with reference to the accompanying drawings, but the scope of protection of this specification is not limited to what is described below.

[0045] To make the objectives, technical solutions, and advantages of the embodiments in this specification clearer, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this specification. Therefore, the following detailed description of the embodiments of this specification provided in the accompanying drawings is not intended to limit the scope of the claimed specification, but merely to represent selected embodiments of this specification. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this specification.

[0046] In the description of this specification, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing this specification and simplifying the description, and are not intended to indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this specification.

[0047] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0048] In this specification, unless otherwise expressly specified and limited, the presence of a first feature above or below a second feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top of" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. Conversely, "below," "beneath," and "below" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] The present invention will be further described below with reference to embodiments. These embodiments are merely some, not all, of the embodiments of the present invention. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the protection scope of the present invention.

[0050] Please refer to the accompanying drawings, which show the structure of the embodiment selected by the present invention. This is for illustrative purposes only and is not limited to this structure in the patent application.

[0051] Figure 1 The diagram illustrates an application scenario of an apparatus for testing rotating components in a high-temperature environment, according to some embodiments of the present invention.

[0052] like Figure 1 As shown, in some application scenarios, the device 100 for testing rotating parts in high-temperature environments may include a pressure source 110, a combustion section 120, a test device 130, a cooling section 140, and an exhaust section 150.

[0053] Pressure source 110 is used to simultaneously or separately pressurize the conveying medium in combustion section 120 and cooling section 140. For example, when the required gas pressure for test device 130 is 0.1–0.2 MPa, pressure source 110 can pressurize the gas in combustion section 120 to greater than or equal to 0.1–0.2 MPa, so that the pressure of the gas supplied from combustion section 120 to test device 130 is within the pressure range of 0.1–0.2 MPa. As another example, when the gas pressure in test device 130 is 0.1–0.2 MPa, pressure source 110 can pressurize the cooling medium in cooling section 140 to greater than or equal to 0.1–0.2 MPa, so that the pressure of the cooling medium in cooling section 140 used to cool test device 130 is within the pressure range of 0.1–0.2 MPa. This achieves a dynamic balance between the gas pressure in test device 130 and the cooling medium pressure at the cooling location, while also effectively preventing gas leakage. In practical applications, the pressure difference of dynamic equilibrium allows for an error of up to ±5%.

[0054] In some embodiments, pressure source 110 may include a first pressure source 111 and a second pressure source 112. The first pressure source 111 may pressurize the combustion gas in combustion section 120; the second pressure source 112 may pressurize the cooling medium in cooling section 140.

[0055] In some embodiments, the pressure source 110 can be a gas boosting device for pressurizing gas, such as a gas booster bench, gas booster pump, air booster pump, air compressor, electric gas booster, pneumatic gas booster, etc. In other embodiments, the pressure source 110 can be a liquid booster device for pressurizing liquid, such as a liquid booster, liquid booster system, liquid booster pump, refrigerant booster pump, etc. That is, the pressure source 110 can be a pneumatic source or a hydraulic source.

[0056] The combustion section 120 is used to supply high-temperature gas to the test apparatus 130, providing a high-temperature gas testing environment for the rotating component 510. The combustion section 120 can be a combustion chamber, specifically used to provide high-temperature gas with a temperature above 1500K, or even up to 2000K, to the test apparatus 130, and to achieve temperature cyclic load testing of the rotating component 510 by adjusting the gas temperature.

[0057] In this specification, high-temperature gas specifically refers to gas with a temperature above 1500K, and high-temperature environment specifically refers to an environment with a temperature above 1500K.

[0058] The test apparatus 130 is used to simulate the high-temperature environment and centrifugal load experienced by the rotating component 510 during actual operation. For details regarding the specific structure of the test apparatus 130, please refer to [reference needed]. Figure 2 And related explanations.

[0059] The cooling section 140 is used to cool the test section 131 and / or the first tension assembly 132 and / or the second tension assembly 133.

[0060] In some embodiments, the cooling section 140 may be a cooling tower, a cooling system, or other cooling equipment.

[0061] In some embodiments, the cooling medium in the cooling section 140 may be water. The water used as the cooling medium can be water at room temperature or liquid cooling water that has been cooled to near zero degrees Celsius. In some embodiments, the cooling medium in the cooling section 140 may be a liquid with a freezing point lower than water. In other embodiments, the cooling medium in the cooling section 140 is a cutting fluid commonly used in machine tool cooling systems. When selecting a cooling medium, the lowest possible freezing point and heat exchange capacity should be considered.

[0062] In some embodiments, the cooling medium in the cooling section 140 may be a cooling gas. Cooling gases may include, for example, cold air.

[0063] The exhaust section 150 is used to traction the gas discharged from the test section 131 to prevent the gas from leaking into the outside.

[0064] In some embodiments, the exhaust section 150 can be an exhaust traction device such as a duct fan or a guide fan.

[0065] Figure 2 This is a schematic diagram of the apparatus for testing rotating parts in high-temperature environments, as described in some embodiments of this specification.

[0066] like Figure 2 As shown, the test device 130 may include a test section 131, a first tension component 132, a second tension component 133, a first sleeve 134, a second sleeve 135, and a pneumatic source 136.

[0067] Test section 131 is used to provide a simulated high-temperature environment for the rotating component 510. Test section 131 is hollow, forming a gas combustion channel, and has a first through hole 720 and a second through hole 730 respectively formed on its opposite side walls. For a brief description of the specific structure of the first through hole 720 and the second through hole 730, please refer to [link to relevant documentation]. Figure 9 .

[0068] In some embodiments, a pressure sensor is provided in the test section 131 to transmit a pressure signal to the pressure source 136 and dynamically adjust the pressure. The pressure sensor can detect the gas pressure in the test section 131. The pressure source 136 receives the pressure signal of the gas pressure transmitted by the pressure sensor and can dynamically adjust the pressure of the gas supplied to the combustion section 120 and / or the cooling section 140 to ensure that the gas pressure in the test section 131 is in dynamic balance with the cooling medium pressure at the cooling position, or to ensure that the cooling medium pressure at the cooling position is always greater than or equal to the pressure in the test section 131.

[0069] In some embodiments, the cross-section of the test section 131 is fan-shaped. This fan shape means that the cross-section of the hollow cavity of the test section 131 is fan-shaped, which can accurately simulate the high-temperature environment in which the rotating component 510 is located during actual operation.

[0070] In some embodiments, the sidewall of the test section 131 is provided with a liquid cooling channel 710 surrounding the test section 131. For a brief description of the specific structure of the liquid cooling channel 710, please refer to [link to relevant documentation]. Figure 9 .

[0071] In some embodiments, such as Figure 2 As shown, the liquid cooling channel 710 is provided with an inlet pipe 250 and an outlet pipe 260. The cooling medium in the liquid cooling channel 710 enters through the inlet pipe 250 and exits through the outlet pipe 260.

[0072] The first tension component 132 is used to hold the end of the rotating component 510 that extends out of the first through hole 720. The first tension component 132 can be a rod-shaped device or facility such as a tension rod, tension bar, or tension pin, used to hold the rotating component 510 so that it can pass through the first through hole 720 into and out of the test section 131.

[0073] In some embodiments, the first tension component 132 may be configured with a power source such as a tension machine so that the first tension component 132 can drive the rotating member 510, so that the rotating member 510 enters and exits the test section 131 through the first through hole 720.

[0074] In some embodiments, the first tension component 132 pulls one end of the rotating member 510 extending out of the first through hole 720, and the rotating member 510 has an installation angle of 3° to 5°. When the first tension component 132 is driven by a power source such as a tensioning machine, it provides a tangential force to the rotating member 510 to simulate the tangential load on the rotating member 510 when it rotates.

[0075] In some embodiments, the first tension component 132 is fitted with a third sleeve 230, which is connected to the first sleeve 134. In some embodiments, the third sleeve 230 is fitted with the first tension component 132, and the inner annular surface of the third sleeve 230 is provided with grating teeth 740 to form a grating tooth sealing structure. The grating tooth sealing structure can reduce the amount of gas leakage from the first sleeve 134 to the outside, thereby ensuring that the gas pressure in the first sleeve 134 and the pressure in the test section 131 remain dynamically balanced, or ensuring that the gas pressure in the first sleeve 134 is always greater than or equal to the pressure in the test section 131.

[0076] In some embodiments, the third sleeve 230 can be connected to the first sleeve 134 via a flange.

[0077] The second tension assembly 133 is used to hold the other end of the rotating component 510 through the second through hole 730. The second tension assembly 133 can be a rod-shaped device or facility such as a tension rod, tension bar, or tension pin, used to hold the rotating component 510 so that it can pass through the second through hole 730 into and out of the test section 131.

[0078] In some embodiments, when the rotating member 510 enters the test section 131, the end of the second tension component 133 away from the rotating member 510 can be detachably connected to the external environment to hold the rotating member 510.

[0079] In some embodiments, the second tension component 133 may be configured with a power source such as a tension machine so that the second tension component 133 can drive the rotating member 510 so that the rotating member 510 can enter and exit the test section 131 through the second through hole 730.

[0080] In some embodiments, the second tension assembly 133 is fitted with a fourth sleeve 240, which is connected to the second sleeve 135. The inner annular surface of the fourth sleeve 240 is provided with grates 740 to form a grates sealing structure. The grates sealing structure can reduce the amount of gas leakage from the second sleeve 135 to the outside, so as to ensure that the gas pressure in the second sleeve 135 and the pressure in the test section 131 are kept in dynamic balance, or to ensure that the gas pressure in the second sleeve 135 is always greater than or equal to the pressure in the test section 131.

[0081] In some embodiments, the fourth sleeve 240 can be connected to the second sleeve 135 via a flange.

[0082] The first sleeve 134 is connected to the outside of the first through hole 720 and sleeved around the outside of the first tension assembly 132. The first sleeve 134 has at least one first air intake channel 210 circumferentially arranged. The first air intake channel 210 can be an air intake pipe or an air inlet. Gas introduced through the first air intake channel 210, matching the gas pressure in the test section 131, achieves dynamic equilibrium between the gas and the introduced gas at the first through hole 720, or ensures that the gas pressure in the first air intake channel 210 is greater than or equal to the pressure in the test section 131. This effectively prevents gas leakage from the first through hole 720 and accurately simulates the high-temperature environment of the rotating component 510 during actual operation. The number of first air intake channels 210 can be set according to actual needs, such as 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or even 11 to 20.

[0083] In some embodiments, the first air intake channel 210 has multiple channels that are evenly distributed on the circumferential surface of the first sleeve 134. The multiple evenly distributed first air intake channels 210 can make the gas pressure in the first sleeve 134 more uniform, which is beneficial to maintain a dynamic balance between the gas in the first sleeve 134 and the gas in the test section 131 at the first through hole 720, or to make the gas pressure in the first air intake channel 210 greater than or equal to the pressure in the test section 131, effectively preventing gas leakage from the first through hole 720, and accurately simulating the high-temperature environment in which the rotating part 510 actually works.

[0084] The second sleeve 135 is connected to the outside of the second through hole 730 and sleeved around the outside of the second tension assembly 133. At least one second air intake channel 220 is circumferentially provided on the second sleeve 135. The second air intake channel 220 can be an air intake pipe or an air inlet. Gas introduced through the second air intake channel 220, matching the gas pressure in the test section 131, achieves dynamic equilibrium between the gas and the introduced gas at the second through hole 730, or ensures that the gas pressure in the second air intake channel 220 is greater than or equal to the pressure in the test section 131. This effectively prevents gas leakage from the second through hole 730 and accurately simulates the high-temperature environment of the rotating component 510 during actual operation. The number of second air intake channels 220 can be set according to actual needs, such as 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or even 11 to 20.

[0085] In some embodiments, the second air intake channels 220 are multiple and evenly distributed on the circumferential surface of the second sleeve 135. The multiple evenly distributed second air intake channels 220 can make the gas pressure in the second sleeve 135 more uniform, which is beneficial to maintain a dynamic balance between the gas in the second sleeve 135 and the fuel gas in the test section 131 at the second through hole 730, or to make the gas pressure in the first air intake channel 210 greater than or equal to the pressure in the test section 131, effectively preventing the fuel gas from leaking from the second through hole 730, and accurately simulating the high-temperature environment in which the rotating part 510 actually works.

[0086] Figure 3 This is a schematic diagram of the structure of the simulated components involved in some embodiments of this specification.

[0087] Figure 4 This is a schematic diagram of the assembly structure of the first tension component, the second tension component, and the rotating component involved in some embodiments of this specification.

[0088] Figure 5 This is an exploded structural diagram of the first tension component, the second tension component, and the rotating component involved in some embodiments of this specification.

[0089] The following is combined with Figure 3 , Figure 4 and Figure 5 Further description is given of some embodiments in this specification.

[0090] In some embodiments, such as Figure 3As shown, in the transverse direction, at least one simulation element 310 with the same shape and structure as the main body end 512 is respectively provided on opposite sides of the main body end 512 to simulate the actual working environment of the main body end 512. The transverse direction refers to a horizontal direction that is perpendicular or substantially perpendicular to the length direction of the first tension component 132 and / or the second tension component 133, and this horizontal direction is perpendicular or substantially perpendicular to the gas inlet direction; substantially perpendicular means that the two directions can vary within a range of 90°±5°; the transverse direction can be referenced... Figure 3 The middle arrow points in the directions C and D.

[0091] In some embodiments, such as Figure 5 As shown, the rotating component 510 sequentially includes a first connecting section 511, a main body end 512, and a second connecting section 513. Figure 4 and Figure 5 As shown, the first tension component 132 is connected to the first connecting segment 511, and the second tension component 133 is connected to the second connecting segment 513.

[0092] In some embodiments, the first connecting segment 511, the main body end 512, and the second connecting segment 513 are integrally formed.

[0093] In some embodiments, such as Figure 4 As shown, the first tension component 132 is detachably connected to the rotating component 510 via a pin 560. In other embodiments, the first tension component 132 is mortised and tenoned to the rotating component 510.

[0094] In some embodiments, such as Figure 5 As shown, a protrusion 540 extends from one end of the first tension component 132 toward the rotating component 510. A connecting rod 550 is connected to one end of the rotating component 510 toward the first tension component 132. A first positioning hole 541 is provided through the protrusion 540. A groove 551 adapted to the protrusion 540 is provided on the connecting rod 550. A second positioning hole 552 is provided through the groove 551 corresponding to the position of the first positioning hole 541. When the protrusion 540 is inserted into the groove 551, the first positioning hole 541 and the second positioning hole 552 communicate and form a connecting hole. A pin 560 is provided in the connecting hole. The protrusion 540 is detachably connected to the connecting rod 550 through the pin 560.

[0095] In some embodiments, the connecting rod 550 may be integrally formed with the rotating member 510.

[0096] In some embodiments, the length direction of the pin 560 is perpendicular to the length direction of the first tension component 132.

[0097] In some embodiments, there are at least two pins 560. At least two pins 560 can prevent relative rotation between the first tension assembly 132 and the rotating member 510, such as two, three, four, five, or six parallel pins 560.

[0098] In some embodiments, the second tension component 133 is detachably connected to the rotator 510 via a pin 560. In other embodiments, the second tension component 133 is mortised and tenoned to the rotator 510.

[0099] In some embodiments, the end of the rotating member 510 away from the first tension component 132 is provided with a tenon 520, and the second tension component 133 is provided with a mortise 530 adapted to the tenon 520. The second tension component 133 is connected to the rotating member 510 through the tenon 520 and the mortise 530.

[0100] In some embodiments, the tenon 520 may be integrally formed with the rotating part 510.

[0101] Figure 6 This is a partial cross-sectional structural diagram of the apparatus for testing rotating parts in high-temperature environments, as described in some embodiments of this specification, at point AA.

[0102] Figure 7 This is a schematic diagram of the rotating component involved in some embodiments of this specification.

[0103] The following is combined with Figure 6 and Figure 7 Further description is given of some embodiments in this specification.

[0104] In some embodiments, such as Figure 6 As shown, test section 131 includes a front channel 610 and a rear channel 620. The front channel 610 and the rear channel 620 are connected and their axes form an angle. A first through hole 720 and a second through hole 730 are provided at the connection between the front channel 610 and the rear channel 620.

[0105] In some embodiments, the included angle is determined based on the included angle between the tangent at one end of the central arc line in the cross-section of the middle portion of the rotating member 510 and the tangent at the other end of the central arc line.

[0106] like Figure 6 As shown, arrow E indicates the direction of high-temperature gas entry, arrow F indicates the direction of high-temperature gas exit, and angle G is the angle between the directions of arrow E and arrow F, which is also the angle formed by the axial directions of the front channel 610 and the rear channel 620, and the deflection angle of the high-temperature gas after it performs work on the rotating component 510. The extension lines of arrows E and F can be considered as the tangents at both ends of the central arc line in the cross-section of the rotating component 510.

[0107] In practical applications, the included angle G can be determined based on the specific structure and installation position of the rotating component 510 under test, as well as the design requirements of the above-mentioned scheme. That is, the included angle G is different for rotating components 510 of different shapes and sizes, and the included angle G is also different for rotating components 510 installed in different positions. An error of ±1° to 5° is allowed when determining the included angle. In some embodiments, the included angle G can range from 20° to 70°, and the specific angles can be 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, and 70°.

[0108] It is worth noting that the inventors discovered that in actual working environments, after the high-temperature gas enters the test section 131, it does work on the rotating component 510. This work is converted into the kinetic energy of the rotating component 510. After the high-temperature gas does work, its flow direction will be deflected. If there is no angle between the front channel 610 and the rear channel 620 during the experiment, the high-temperature gas will directly impact the inner wall of the test section 131 after the deflection, causing severe ablation and significantly shortening the lifespan of the experimental equipment. This also introduces significant safety risks and increases experimental costs.

[0109] In the above embodiment, by setting the included angle G, the flow direction of the high-temperature gas after impacting the rotating component 510 will be deflected towards the outlet direction of the test section 131 and discharged along the length direction of the rear channel 620. This effectively avoids the high-temperature gas impacting the inner wall of the test section 131, greatly alleviates the ablation of the inner wall of the test section 131, and can greatly improve the service life of the test section 131, effectively reducing experimental risks and costs. Moreover, it can be used in conjunction with the exhaust section 150 to reduce the residence time of the high-temperature gas in the rear channel 620, further alleviating the ablation of the inner wall of the test section 131.

[0110] like Figure 7 As shown, the middle part of the rotating member 510 refers to the region H formed by extending the centerline I between the two ends of the rotating member 510 along its length by 5% of the length of the rotating member 510 to each end. In some embodiments, the middle part of the rotating member 510 may specifically refer to the position at 50% of the length of the rotating member 510 along its length.

[0111] The cross section of the middle part of the rotating part 510 refers to the cross section of the rotating part 510 obtained by taking a section within region H and in a direction parallel to the length direction of the centerline I.

[0112] The central arc line in the cross-section of the rotating component 510 refers to the arc segment obtained by taking the midpoints of the two ends in the width direction of the rotating component 510 as the endpoints and the arc direction of the rotating component 510 as the arc line.

[0113] The tangents at both ends of the central arc line in the cross-section of the rotating part 510 refer to the rays obtained by extending the two ends of the central arc line outward respectively.

[0114] Figure 8 This is a schematic diagram of the structure of the test section involved in some embodiments of this specification.

[0115] Figure 9 This is a partial cross-sectional structural diagram of the apparatus at BB for testing rotating parts in high-temperature environments, as described in some embodiments of this specification.

[0116] The following is combined with Figure 8 and Figure 9 Further description is given of some embodiments in this specification.

[0117] like Figure 8 and Figure 9 As shown, the first through hole 720 and the second through hole 730 facilitate the entry and exit of the rotating component 510 into the test section 131 in a straight line direction, and this straight line direction is perpendicular or substantially perpendicular to the flow direction of the gas in the gas passage, which facilitates accurate simulation of the high-temperature environment in which the rotating component 510 is located during actual operation. "Substantially perpendicular" means that the straight line direction can vary within a range of 90°±5° from the flow direction of the gas in the gas passage.

[0118] In some embodiments, the liquid cooling channel 710 may be a cooling section 140 or a portion thereof.

[0119] In some embodiments, the liquid cooling channel 710 is connected to the cooling section 140, and the cooling medium of the cooling section 140 enters the liquid cooling channel 710 through the inlet pipe 250 and exits through the outlet pipe 260.

[0120] In some embodiments, the cooling medium in the liquid cooling channel 710 may be water. The water used as the cooling medium may be water at room temperature or liquid cooling water that has been cooled to near zero degrees Celsius.

[0121] In some embodiments, the cooling medium within the liquid cooling channel 710 may be a liquid with a freezing point lower than water. In other embodiments, the cooling medium within the liquid cooling channel 710 may be a cutting fluid commonly used in machine tool cooling systems. When selecting a cooling medium, both a low freezing point and high heat exchange capacity should be considered.

[0122] Figure 10This is a schematic diagram illustrating the supply of gas from a pressure source to a test section in some embodiments of this specification.

[0123] like Figure 10 As shown, the air pressure source 136 provides an air pressure greater than or equal to the ambient pressure within the test section 131 for at least one first air intake passage 210 and / or at least one second air intake passage 220.

[0124] In some embodiments, the pressure source 136 is connected to at least one first intake channel 210 and / or at least one second intake channel 220 and provides a pressure matching the high-temperature environment within the test section 131. The pressure source 136, through the first intake channel 210 and / or the second intake channel 220, introduces gas matching the gas pressure within the test section 131 into the first sleeve 134 and / or the second sleeve 135, effectively preventing gas leakage from the first through hole 720 and / or the second through hole 730. The pressure matching the high-temperature environment within the test section 131 means that the gas pressure introduced by the pressure source 136 into the first sleeve 134 and / or the second sleeve 135 is dynamically balanced with the gas pressure of the high-temperature environment within the test section 131, allowing for a 5% error. Alternatively, the pressure of the cooling gas introduced into the first sleeve 134 and / or the second sleeve 135 is greater than or equal to the pressure within the test section 131.

[0125] In some embodiments, the air pressure source 136 may be a pressure source 110 or a part of a pressure source 110.

[0126] In some embodiments, the pressure source 136 is connected to the cooling section 140, which is connected to at least one first air intake channel 210 and / or at least one second air intake channel 220, so that the pressure of the cooling gas supplied by the cooling section 140 to the first sleeve 134 and / or the second sleeve 135 is dynamically balanced with the gas pressure of the high-temperature environment in the test section 131; the dynamically balanced pressure is allowed to have an error of 5%. Alternatively, the pressure of the cooling gas supplied by the first sleeve 134 and / or the second sleeve 135 is greater than or equal to the pressure in the test section 131.

[0127] The embodiments described above are for illustrative purposes only and are not intended to limit the invention. Therefore, any changes in numerical values ​​or substitutions of equivalent elements should still fall within the scope of this invention.

[0128] The above detailed description will enable those skilled in the art to understand that the present invention can indeed achieve the aforementioned objectives and has complied with the provisions of the Patent Law.

[0129] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the invention. The above descriptions are merely preferred embodiments of the invention and are not intended to limit the invention. It should be noted that any modifications, equivalent substitutions, and improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

[0130] It should be noted that the above description of the process is for illustrative purposes only and does not limit the scope of this specification. Those skilled in the art can make various modifications and changes to the process under the guidance of this specification. However, these modifications and changes remain within the scope of this specification.

[0131] The basic concepts have been described above. Obviously, for those skilled in the art who have read this application, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore, such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of this application.

[0132] Furthermore, this application uses specific terms to describe its embodiments. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different positions in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.

[0133] Furthermore, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this application are not intended to limit the order of the processes and methods of this application. Although some currently considered useful embodiments of the invention have been discussed in the foregoing disclosure by way of various examples, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments; rather, the claims are intended to cover all modifications and equivalent combinations that conform to the substance and scope of the embodiments of this application. For example, although the implementation of the various components described above can be embodied in a hardware device, it can also be implemented as a purely software solution, such as an installation on an existing server or mobile device.

[0134] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this approach of the present application should not be construed as reflecting an intention that the claimed subject matter requires more features than expressly recited in each claim. Rather, the subject of the invention should possess fewer features than in any single embodiment described above.

Claims

1. An apparatus for testing rotating parts in a high-temperature environment, characterized in that, include: The test section is used to provide a simulated high-temperature environment for the rotating part. The test section is hollow, and a first through hole and a second through hole are respectively opened on its opposite side walls. A first tension component is used to hold the end of the rotating member that extends out of the first through hole; The second tension component is used to hold the end of the rotating member that extends out of the second through hole; The first sleeve is connected to the outside of the first through hole and sleeved on the outside of the first tension component. The first sleeve is provided with at least one first air intake channel in the circumferential direction. The second sleeve is connected to the outside of the second through hole and sleeved on the outside of the second tension component. The second sleeve is provided with at least one second air intake channel in the circumferential direction. A pressure source, wherein the pressure source is connected to the at least one first air intake channel and / or the at least one second air intake channel and provides an air pressure greater than or equal to the ambient pressure within the test section; The cross-section of the test section is fan-shaped; The test section includes a front end channel and a rear end channel. The front end channel is connected to the rear end channel and the two channels form an angle along their axes. The first through hole and the second through hole are located at the connection between the front end channel and the rear end channel. The first air intake channel has multiple channels that are evenly distributed on the circumferential surface of the first sleeve; the second air intake channel has multiple channels that are evenly distributed on the circumferential surface of the second sleeve.

2. The apparatus as claimed in claim 1, characterized in that, The test section is equipped with a pressure sensor to transmit pressure signals to the air pressure source for dynamic adjustment of air pressure.

3. The apparatus as described in claim 1, characterized in that, The rotating component includes a first connecting section, a main body end, and a second connecting section in sequence. The first tension component is connected to the first connecting section, and the second tension component is connected to the second connecting section. The test section has at least one simulation component with the same shape and structure as the main body end on opposite sides of the main body end in the lateral direction to simulate the actual working environment of the main body end.

4. The apparatus as claimed in claim 1, characterized in that, The included angle is determined based on the angle between the tangent at one end of the central arc line in the cross-section of the rotating component and the tangent at the other end of the central arc line.

5. The apparatus as claimed in claim 1, characterized in that, The first tension component is detachably connected to the rotating component via a pin, and the second tension component is mortised and tenoned to the rotating component; or the first tension component is mortised and tenoned to the rotating component, and the second tension component is detachably connected to the rotating component via a pin.

6. The apparatus as claimed in claim 1, characterized in that, The first tension component is detachably connected to the rotating component via a pin, and the second tension component is detachably connected to the rotating component via a pin; or the first tension component is mortised and tenoned to the rotating component, and the second tension component is mortised and tenoned to the rotating component.

7. The apparatus as claimed in claim 1, characterized in that, The first tension component is fitted with a third sleeve, which is connected to the first sleeve. The inner ring surface of the third sleeve is provided with grating teeth to form a grating tooth sealing structure; and / or the second tension component is fitted with a fourth sleeve, which is connected to the second sleeve. The inner ring surface of the fourth sleeve is provided with grating teeth to form a grating tooth sealing structure.

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