Turbine rear casing high-temperature test device

Abstract

The utility model relates to the technical field of high-temperature test equipment, and discloses a turbine rear casing high-temperature test device which comprises a mainframe box, a fixed heat insulation box is fixedly installed on the mainframe box, a movable heat insulation box is movably installed on one side of the fixed heat insulation box, and heat insulation liners are fixedly installed in the fixed heat insulation box and the movable heat insulation box. A sealing seat is further fixedly installed at the top of the main machine box and located below the fixed heat insulation box, a combustor is fixedly installed at the bottom of the sealing seat, the input end of the combustor is connected with external gas supply equipment through a gas pipe, a first heating pipe is movably installed at the top of the sealing seat, and a lifting mechanism is fixedly installed at the top of the fixed heat insulation box. Through the arrangement of the sealing seat, the combustor, the first heating pipe and the storage mechanism, flame impact and high temperature when an engine works can be simulated, the storage mechanism is composed of a connecting rod, a pressing ring, a pressing rod, a supporting rod, a limiting rod and other structures, turbine cases of different heights and diameters can be limited, and the test completion quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to high temperature test equipment technical field especially relates to a turbine rear engine case high temperature test device. BACKGROUND

[0002] Turbine rear engine case is the important component of aeroengine, is located turbine part rear end, is made by high temperature resistance alloy mostly, presents ring shell body structure, it mainly plays the force bearing effect, needs to bear turbine rotor axial force and radial force, provides installation support for bearing parts simultaneously, its outer wall usually is equipped with cooling channel, passes through the introduction air heat dissipation, to cope with high temperature environment when turbine works, the turbine rear engine case is in the complex working condition of high temperature and high load for a long time, when the existing test device simulates engine working environment, part of device is difficult to accurately reproduce the comprehensive action of flame impact and high temperature airflow, namely the coordinated action scene of flame and high temperature airflow is missing, cannot truly reflect the performance change of turbine rear engine case under complex thermal load, influences the guiding value of test data to engineering application.

[0003] When the aeroengine is running, the turbine rear engine case is in the complex working condition of high temperature and high load for a long time, when the existing test device simulates engine working environment, part of device is difficult to accurately reproduce the comprehensive action of flame impact and high temperature airflow, namely the coordinated action scene of flame and high temperature airflow is missing, cannot truly reflect the performance change of turbine rear engine case under complex thermal load, influences the guiding value of test data to engineering application. UTILITY MODEL CONTENTS

[0004] The utility model discloses a turbine rear engine case high temperature test device can effectively solve the problem in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A turbine rear engine case high temperature test device, comprising a main box, a fixed heat insulation box is fixedly installed on the main box, a movable heat insulation box is movably installed on one side of the fixed heat insulation box, heat insulation liners are fixedly installed in the fixed heat insulation box and the movable heat insulation box, a sealing seat is further fixedly installed on the top of the main box, and the sealing seat is located below the fixed heat insulation box, a burner is fixedly installed at the bottom of the sealing seat, the input end of the burner is connected with an external gas supply equipment through a gas pipe, a first heating pipe is movably installed on the top of the sealing seat, a lifting mechanism is fixedly installed on the top of the fixed heat insulation box, the lifting mechanism is electrically connected with a main control unit in the main box through a cable, a second heating pipe is fixedly installed on one side of the lifting mechanism, the bottom of the second heating pipe is inserted into the heat insulation liner in the fixed heat insulation box, a storage mechanism is movably installed in the first heating pipe, the storage mechanism comprises a support, a plurality of connecting rods are fixedly connected to the outer side of the support, a compression ring is movably installed on the support and the connecting rods, and a compression rod is movably installed in the compression ring.

[0007] As a further preferred scheme of the utility model, a discharge pipe is fixedly installed at the top of the second heating pipe.

[0008] As a further preferred scheme of the utility model, the first heating pipe top is provided with a first slot, and a plurality of positioning grooves are formed in the inner side of the first heating pipe; the first slot formed in the top of the first heating pipe facilitates the sealed connection of the second heating pipe and the first heating pipe, and the positioning grooves provide conditions for the installation of the support in the first heating pipe.

[0009] As a further preferred scheme of the utility model, the second heating pipe bottom is fixedly provided with an insertion ring, and the insertion ring is inserted and arranged in the first slot; the second heating pipe is lifted by the lifting mechanism, and the test component can be placed in the first heating pipe by the storage mechanism and sealedly arranged between the sealing seat and the second heating pipe.

[0010] As a further preferred scheme of the utility model, the bottom of the connecting rod is in a slope surface structure, and a plurality of limiting grooves are formed in the bottom of the connecting rod; the bottom of the connecting rod is in a slope surface structure, which provides a limiting basis for the setting height of the compression ring; the three ends of the support are respectively inserted in one of the positioning grooves.

[0011] As a further preferred scheme of the utility model, the bottom of the compression ring is fixedly provided with three supporting rods, and the bottom of the supporting rod is fixedly provided with a limiting rod; the second slot is formed in the compression ring above the supporting rod; the compression ring is matched with the limiting rod through the three groups of supporting rods at the bottom, so that the turbine casing is placed on the support, the slope surface and the limiting groove at the bottom of the connecting rod are matched to realize the compression of the compression rod on the turbine casing, thereby being applicable to turbine casings with different heights.

[0012] As a further preferred scheme of the utility model, the compression rod is in an L-shaped structure, the bottom of the compression rod is fixedly provided with an insertion block, the insertion block is also in an L-shaped structure, and the insertion block is inserted and arranged in one of the second slots; when the turbine casings with different diameters are limited, the compression rod with different lengths can be replaced.

[0013] As a further preferred scheme of the utility model, the support, the connecting rod, the compression ring, the compression rod, the supporting rod, the limiting rod and the insertion block are all made of silicon carbide ceramic material.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, the sealing seat, the burner, the first heating pipe and the storage mechanism are arranged, the flame impact and high temperature during the operation of the engine can be simulated, the storage mechanism is composed of the connecting rod, the compression ring, the compression rod, the supporting rod and the limiting rod, the turbine casings with different heights and diameters can be limited, and the completion quality of the test is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the main structure of the utility model.

[0017] Figure 2 It is the first heating pipe and the second heating pipe section view of the utility model;

[0018] Figure 3 It is the storage mechanism structure schematic view of the utility model;

[0019] Figure 4 It is the compression ring and compression rod split structure schematic view of the utility model.

[0020] In the drawing: 1, mainframe box;2, fixed heat insulation box;3, movable heat insulation box;4, heat insulation lining;5, sealing seat;6, burner;7, first heating pipe;8, lifting mechanism;9, second heating pipe;10, storage mechanism;11, support;12, connecting rod;13, compression ring;14, compression rod;15, discharge pipe;16, insert ring;17, first slot;18, positioning groove;19, limiting groove;20, second slot;21, support rod;22, limiting rod;23, insert block. DETAILED DESCRIPTION

[0021] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0022] As Figures 1-4 Indicated, the utility model provides a kind of turbine rear casing high temperature test device, including mainframe box 1, fixed installation is equipped with fixed heat insulation box 2 on mainframe box 1, movable heat insulation box 3 is movably installed on one side of fixed heat insulation box 2, heat insulation lining 4 is fixedly installed in fixed heat insulation box 2 and movable heat insulation box 3, mainframe box 1 top is also fixedly installed with sealing seat 5, and sealing seat 5 is located below fixed heat insulation box 2, sealing seat 5 bottom is fixedly installed with burner 6, burner 6 input end is connected with external gas supply equipment through gas pipe, sealing seat 5 top movably installs first heating pipe 7, fixed heat insulation box 2 top is fixedly installed with lifting mechanism 8, and lifting mechanism 8 is electrically connected with main control ware in mainframe box 1 by cable, lifting mechanism 8 one side is fixedly installed with second heating pipe 9, and second heating pipe 9 bottom is then inserted and installed in the heat insulation lining 4 in fixed heat insulation box 2, first heating pipe 7 is movably installed with storage mechanism 10 in it, and storage mechanism 10 includes support 11, a plurality of connecting rods 12 are fixedly connected on the outer side of support 11, compression ring 13 is movably installed on support 11 and connecting rod 12, and compression rod 14 is movably installed on the inner side of compression ring 13.

[0023] As Figure 1 Indicated, second heating pipe 9 top is fixedly installed with discharge pipe 15.

[0024] As Figures 2-4As shown, the first heating pipe 7 is provided with a first slot 17 at the top, and a plurality of positioning grooves 18 are formed in the inner side of the first heating pipe 7. The first slot 17 at the top of the first heating pipe 7 facilitates the sealed connection of the second heating pipe 9 and the first heating pipe 7. The positioning grooves 18 provide conditions for the installation of the support 11 in the first heating pipe 7. The second heating pipe 9 is fixedly installed with a plug ring 16 at the bottom, and the plug ring 16 is installed in the first slot 17. The second heating pipe 9 is lifted by the lifting mechanism 8, which can facilitate the placement of the test component in the first heating pipe 7 and the sealed installation between the sealing seat 5 and the second heating pipe 9. The connecting rod 12 is provided with a plurality of limiting grooves 19 at the bottom, and the bottom of the connecting rod 12 is provided with a slope surface structure, which provides a limiting basis for the height of the compression ring 13. The three ends of the support 11 are inserted into one of the positioning grooves 18. The compression ring 13 is fixedly installed with three support rods 21 at the bottom, and the support rods 21 are fixedly installed with limiting rods 22 at the bottom. The compression ring 13 is provided with a second slot 20 above the support rods 21. The compression ring 13 is matched with the three groups of support rods 21 and limiting rods 22 at the bottom, which can place the turbine casing on the support 11, and cooperate with the slope surface at the bottom of the connecting rod 12 and the limiting grooves 19 to realize the compression of the compression rod 14 on the turbine casing, so as to be suitable for turbine casings with different heights. The compression rod 14 is provided with an insertion block 23 at the bottom, and the insertion block 23 is also provided with an L-shaped structure and is inserted into one of the second slots 20. When limiting turbine casings with different diameters, different lengths of compression rods 14 can be replaced. The support 11, the connecting rod 12, the compression ring 13, the compression rod 14, the support rod 21, the limiting rod 22 and the insertion block 23 are all made of silicon carbide ceramic material.

[0025] It needs to be explained that the utility model discloses a turbine rear casing high temperature test device, before testing the casing, the casing can be placed on the support 11 first, then the pressing rod 14 of appropriate length is selected according to the casing diameter, and the plug block 23 at the bottom of the pressing rod 14 is inserted into the second slot 20, then the pressing ring 13 is inserted on the outside of the casing, and the limiting rod 22 is inserted from the gap of one side of the connecting rod 12 and placed below the connecting rod 12, then the pressing ring 13 can be rotated, and the three supporting rods 21 at the bottom of the pressing ring 13 are synchronously rotated, then the supporting rod 21 drives the limiting rod 22 to move along the slope surface at the bottom of the connecting rod 12, and the limiting rod 22 is gradually pulled down and moved by the slope surface at the bottom of the connecting rod 12, the pressing degree is adjusted by the slope surface at the bottom of the connecting rod 12 and the limiting groove 19, then the limiting rod 22 drives the pressing ring 13 to move down through the supporting rod 21, the casing can be limited between the support 11 and the pressing rod 14 by the pressing ring 13 through the plurality of pressing rods 14 at the top, then the support 11 is placed into the first heating pipe 7 together with the pressing ring 13 and the casing, that is, the three ends of the support 11 are inserted into one of the positioning grooves 18, then the bottom of the first heating pipe 7 is inserted into the sealing seat 5, and the lifting mechanism 8 is controlled to descend by the controller, the second heating pipe 9 is driven to descend, the bottom of the second heating pipe 9 is sealed with the first slot 17 at the top of the first heating pipe 7, the second heating pipe 9 can assist heating and discharge gas through the discharge pipe 15, a high-temperature gas flow environment is formed, the burner 6 is connected to the external gas supply equipment through the gas pipe, and the flame is sprayed upward after ignition through the first heating pipe 7, the engine flame impact is simulated, the flame impact and high-temperature gas flow comprehensive action during engine operation are simulated, and the performance of the turbine rear casing under extreme working conditions is tested.

[0026] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature testing device for the rear casing of a turbine, characterized in that: The system includes a main unit housing (1), on which a fixed heat insulation box (2) is fixedly installed. A movable heat insulation box (3) is movably installed on one side of the fixed heat insulation box (2). Heat insulation liners (4) are fixedly installed inside both the fixed heat insulation box (2) and the movable heat insulation box (3). A sealing seat (5) is also fixedly installed on the top of the main unit housing (1), and the sealing seat (5) is located below the fixed heat insulation box (2). A burner (6) is fixedly installed at the bottom of the sealing seat (5). The input end of the burner (6) is connected to an external gas supply device through a gas pipe. A first heating tube (7) is movably installed on the top of the sealing seat (5). The top of the fixed heat insulation box (2) is fixedly installed... A lifting mechanism (8) is installed, which is electrically connected to the main controller in the main unit box (1) via a cable. A second heating tube (9) is fixedly installed on one side of the lifting mechanism (8). The bottom of the second heating tube (9) is inserted into the heat insulation lining (4) in the fixed heat insulation box (2). A storage mechanism (10) is also movably installed inside the first heating tube (7). The storage mechanism (10) includes a bracket (11). Multiple connecting rods (12) are fixedly connected to the outside of the bracket (11). A pressure ring (13) is movably installed on the bracket (11) and the connecting rods (12). A pressure rod (14) is movably installed inside the pressure ring (13).

2. The high-temperature testing device for the rear casing of a turbine according to claim 1, characterized in that: The second heating tube (9) has a discharge pipe (15) fixedly installed on its top.

3. The high-temperature testing device for the rear casing of a turbine according to claim 1, characterized in that: The first heating tube (7) has a first slot (17) at the top and multiple positioning slots (18) on the inner side of the first heating tube (7).

4. The high-temperature testing device for the rear casing of a turbine according to claim 3, characterized in that: The bottom of the second heating tube (9) is fixedly installed with a plug ring (16), which is inserted into the first slot (17).

5. The high-temperature testing device for the rear casing of a turbine according to claim 4, characterized in that: The bottom of the connecting rod (12) has a sloping structure, and the bottom of the connecting rod (12) is also provided with multiple limiting grooves (19). The three ends of the bracket (11) are respectively inserted into one of the positioning grooves (18).

6. The high-temperature testing device for the rear casing of a turbine according to claim 5, characterized in that: The pressure ring (13) has three support rods (21) fixedly installed at its bottom. The support rods (21) have limit rods (22) fixedly installed at their bottoms. The pressure ring (13) located above the support rods (21) also has a second slot (20).

7. The high-temperature testing device for the rear casing of a turbine according to claim 6, characterized in that: The pressure rod (14) has an L-shaped structure, and a plug (23) is fixedly installed at the bottom of the pressure rod (14). The plug (23) also has an L-shaped structure, and the plug (23) is inserted into one of the second slots (20).

8. The high-temperature testing device for the rear casing of a turbine according to claim 7, characterized in that: The bracket (11), connecting rod (12), pressure ring (13), pressure rod (14), support rod (21), limiting rod (22), and insert block (23) are all made of silicon carbide ceramic material.

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