CN109443788B - Turbojet engine test bed system - Google Patents
Turbojet engine test bed system Download PDFInfo
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- CN109443788B CN109443788B CN201811527572.XA CN201811527572A CN109443788B CN 109443788 B CN109443788 B CN 109443788B CN 201811527572 A CN201811527572 A CN 201811527572A CN 109443788 B CN109443788 B CN 109443788B
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- 238000012360 testing method Methods 0.000 title claims abstract description 162
- 239000000446 fuel Substances 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims abstract description 19
- 239000003921 oil Substances 0.000 claims description 12
- 239000000295 fuel oil Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000002828 fuel tank Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000002274 desiccant Substances 0.000 claims description 3
- 239000010705 motor oil Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 description 14
- 238000007789 sealing Methods 0.000 description 9
- 230000003068 static effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910000639 Spring steel Inorganic materials 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- Chemical & Material Sciences (AREA)
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- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The invention provides a turbojet test bed system, which comprises a bed mechanical system, an exhaust system, a fuel system and an air compression system, wherein the exhaust system is connected with the bed mechanical system; the rack mechanical system is arranged in a test workshop and comprises a test rack, a working platform and a complete machine test area; the test bed is arranged on the corresponding test bed arrangement position on the working platform, and the whole machine test area is independently arranged outside the working platform; the exhaust system comprises an injection cylinder and an exhaust cylinder, and each test bed corresponds to one group of exhaust systems; the injection cylinder is provided with a belt wheel bracket and can axially move along the rear end of the arrangement position of the test bed and the guide rail in the exhaust cylinder; and plugging covers are arranged at the injection openings between the exhaust barrels and the injection barrels and are uniformly distributed on the wall body of the test workshop, and the exhaust barrels extend into exhaust towers adjacent to the test workshop. The test bed system provided by the invention can effectively improve the space utilization rate and the work efficiency of the test bed.
Description
Technical Field
The invention relates to the technical field of aeroengine testing, in particular to a turbojet test bed system.
Background
The aeroengine is used as an aeroengine power system, and the ground test bed test technology of the aeroengine is an important ring in the test research of the aeroengine, and penetrates each link of the life cycle of the aeroengine throughout the whole test research process to become an indispensable key step in the production process of the aeroengine, so that the success or failure of the ground test research is important for the forming, life prolonging and improvement of one engine.
The development speed of the current small-sized aircraft is extremely rapid, the engine of the small-sized aircraft is different from that of the large-sized aircraft to a certain extent, the traditional large-sized engine test bed is simply scaled on the design and layout of the small-sized engine test bed system in the prior art, the utilization of space and the arrangement of all parts are not reasonable, and the working efficiency and the manual efficiency of the test bed are not improved.
Disclosure of Invention
Aiming at the defects and defects of the prior art, the invention provides the test bed system which is reasonable in arrangement, fully utilizes the space, is convenient to use and is suitable for testing a small turbojet engine.
The technical scheme of the invention is as follows:
a turbojet test bed system, comprising a bed mechanical system, an exhaust system, a fuel system, and an air compression system;
The rack mechanical system is arranged in the test workshop and comprises a plurality of test racks, a working platform and a complete machine test area; the test bed comprises an installation platform, an engine installation frame, an air inlet pipe and an engine switching frame; the working platform is provided with a plurality of corresponding test bed arrangement positions; the mounting platform is arranged in a test bed arrangement position on the working platform and supports the engine mounting frame, the engine switching frame, the air inlet pipe and the engine; the rear end of the arrangement position of each test bed is provided with a guide rail;
The exhaust system comprises an injection cylinder and an exhaust cylinder, and each test bed corresponds to one group of exhaust systems; the air inlet of the injection pipe is arranged at the outlet of the tail jet pipe of the engine, the air outlet of the injection pipe is inserted into the exhaust pipe, and the front end of the exhaust pipe is provided with a guide rail; the injection cylinder is provided with a belt wheel bracket and can axially move along the rear end of the arrangement position of the test bed and the guide rail in the exhaust cylinder; the injection ports between the exhaust barrels and the injection barrels are provided with blocking covers, the injection port blocking covers of each group of exhaust systems are uniformly distributed on the wall body of the test workshop, and a plurality of exhaust barrels extend into exhaust towers adjacent to the test workshop;
The whole machine test area is independently arranged outside the working platform and is matched with a group of exhaust systems, the injection port plugging cover of the exhaust systems is arranged on the wall body of the test workshop, and the exhaust pipe extends into an exhaust tower adjacent to the test workshop;
The main bodies of the fuel oil system and the air compression system are arranged in a tool room outside the test room, and fuel oil and air are transferred to the test room through pipelines.
Further, the fuel system comprises a fuel tank, a fuel pump, a pressure regulating valve, a mass flowmeter, a turbine flowmeter, an accumulation flowmeter, a fireproof electromagnetic valve, a filter and a pipeline system; the fuel tank, the fuel pump and the pressure regulating valve are arranged among the fuels to perform preliminary storage and calling of the fuels; the test room is connected with a plurality of oil supply pipelines in parallel, one oil supply pipeline is connected with a reserved interface of the whole machine test area, and an accumulated flowmeter is arranged on the reserved interface; the remainder is connected with the oil supply pipeline in parallel, and is respectively connected with the oil inlet of the engine on the test bed, and the path is sequentially connected with the mass flowmeter, the turbine flowmeter and the fireproof electromagnetic valve in series.
Further, the air compression system comprises an air compressor, a rear cooler, an air storage tank, a dryer, a filter, a pressure reducing valve, an electromagnetic valve and a pipeline system; the air compressor, the rear cooler, the storage tank and the drying agent are arranged among tools; a main pipeline extends from the tool room to the test workshop, and a pressure reducing valve is arranged on the main pipeline; the main pipeline is further divided into a plurality of parallel branch pipelines, one branch pipeline is connected with a reserved interface of a whole test area, the other branch pipelines are respectively connected with an engine air inlet on each test bed, and a solenoid valve is arranged on the path of the branch pipeline.
Further, a stair is arranged at the front and the rear of the working platform respectively.
Further, the fuel system pipeline is laid overhead along the wall between the fuel room and the test room.
Further, a quick connector is adopted for connecting the fuel system pipeline with the engine oil inlet.
Furthermore, the pipeline from the tool room to the test room of the air compression system adopts a pre-buried mode, and the pipeline in the test room adopts an overhead arrangement mode.
Further, the air compression system pipeline is connected with an air inlet of the engine by a quick connector.
Further, the piping of the set of air compression systems extends to one or both of the test plants.
Further, the test bed system further comprises a test system, an electrical system and an industrial television system.
The beneficial effects of the invention are as follows:
(1) According to the test bed system provided by the invention, the working platform is arranged in the test room, the plurality of test beds are simultaneously installed on the working platform, a group of exhaust systems are respectively configured, and the same exhaust tower is shared, so that the space utilization rate is effectively improved; and a whole machine test area is independently arranged outside the test bed working platform, so that the functionality of the test bed is enriched.
(2) In the test bed system provided by the invention, the exhaust system is fixed on the wall body between the test workshop and the exhaust tower, and the openable and closable sealing cover is arranged, so that the exhaust is simple, convenient and quick, and the high-temperature fuel gas can be effectively ensured not to flow back.
(3) In the test bed system provided by the invention, the test bed is arranged on the working platform and is in a fixed state, and the injection part of the exhaust system can be subjected to position adjustment along the axial direction of the engine, so that the injection distance can be adjusted in the test process, the normal thrust performance of the engine is not influenced, and the normal operation of the injection cylinder is ensured.
(4) The test bed rack provided by the invention is provided with the transfer rack, so that the engine can be quickly started and stopped, and the working efficiency of the test bed is improved.
(5) In the test bed system provided by the invention, the fuel system and the air compression system are reasonably arranged, so that the working efficiency is ensured, and the safety is improved.
Drawings
FIG. 1 is a general layout diagram of a test bed system provided by the invention;
FIG. 2 is a working platform of the test bed system;
FIG. 3 is a test bed diagram;
FIG. 4 is a test bed diagram;
FIG. 5 is a test bed diagram;
FIG. 6 is an exhaust system diagram;
FIG. 7 is a fuel system layout;
fig. 8 is an air compression system layout.
Detailed Description
The invention is further described below with reference to the drawings and examples. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
A turbojet engine test bed system comprises a bed mechanical system, an exhaust system, a fuel system and an air compression system;
As shown in fig. 1 and 2, in this embodiment, the rack mechanical system is disposed in a test workshop and includes a test rack 2, a working platform 1, and a complete machine test zone Z1; the test bed comprises a mounting platform 21 and an engine mounting frame 22; a plurality of corresponding test bed arrangement bits 12 are arranged on the working platform; the mounting platform is installed in the test bed arrangement position 12 on the working platform, supports the engine mounting frame 22, the engine and the like, and the mounting platform 21 is beneficial to the expansion of test bed functions, so that the engine mounting frame 22 can be replaced to adapt to the use of engines of other models.
The test bed rack comprises a mounting platform 21 and an engine mounting frame; the engine mounting frame comprises a static frame 221, a movable frame 223 and a switching frame 224; the static frame 221 is fixed on the mounting platform 21, the mounting platform is used for facilitating the expansion of the test bed function, the engine mounting frame can be replaced to adapt to the use of other types of engines, and an adjusting pad 222 is arranged between the support column of the static frame 221 and the mounting platform 21 and used for leveling the static frame.
The movable frame is suspended inside the static frame through four spring steel plates 25: the upper end of the leaf spring 25 is fixedly connected with a vertical connecting block near the corner end on the inner side of the top beam of the static frame 221, while the lower end is fixedly connected with four upright posts of the movable frame 223, as shown in the figure, due to the existence of the leaf spring 25, when the engine is tested, the leaf spring generates thrust force to enable the movable frame 223 to swing in a small amplitude along the axial direction of the engine; the top surface and the side of moving frame 223 entablature are equipped with a plurality of pinholes, and the both sides of quiet frame are equipped with four shear pins 28 altogether, and its fixed position is in mutually perpendicular's plane with spring steel sheet fixed position, and the shear pin 28 is all inserted in the pinhole that the moving frame 223 entablature side was arranged, so, if at spring steel sheet 25 inefficacy, then move the frame 223 and fall on the shear pin 28 to guarantee the safety of engine, there is 2 mm's radial clearance between shear pin 28 and the pinhole simultaneously, does not influence the normal swing of moving frame 223.
The support of the switching frame 224 is provided with a plurality of pin holes, and the main purpose of the switching frame 224 is to reduce the time for the engine to get on or off the platform by corresponding to the pin holes formed on the top surface of the upper beam of the movable frame 223, and the specific working mode is as follows: when the engine is on the bench, firstly, the engine is mounted on the transfer frame 224 in a to-be-tested room, a measurement and control cable and a pipeline on the transfer frame are connected, then the engine and the transfer frame 224 are conveyed into the test room together through the transfer vehicle, the transfer frame 224 and the engine are lifted by a lifting appliance in the test room and are moved to the upper part of the moving frame, the position of the transfer frame 224 is fixed by a positioning pin, the positioning pin has a guiding function, automatic positioning can be realized in the falling process of the transfer frame, after the transfer frame 224 is completely attached to the moving frame 223, the hanging frame is taken down, then the transfer frame is pressed by a quick clamp 261 fixed on the moving frame, the positioning pin is taken out, and then the positioning pin 262 is inserted into a pin hole between the transfer frame and the moving frame to finish the fixing of the transfer frame 224 and the moving frame 223.
Based on the characteristic that the quick clamp 261 and the quick release pin 262 can be clamped and unloaded very lightly, the tested engine and the transfer frame 224 thereof can be disconnected from the driven frame quickly, the lifting appliance is used for removing the engine, and the next group of transfer frames and the engine are installed immediately; the adapter frame is also provided with a detachable mounting joint 24, and one adapter frame can be suitable for mounting various types of engines through the replacement of the mounting joint.
As shown in fig. 4, a working thrust meter device 27 is further arranged on the engine mounting frame, two force measuring ends of the working thrust meter are fixed on different supports, one support 271 is fixed on the movable frame, the other support 272 is fixed on the static frame, when a test is performed, horizontal thrust generated by the engine acts on the movable frame 223, the movable frame 223 swings, so that the fixed support on the movable frame 223 can give the working thrust meter 27 a push-pull force, the force is measured by the working thrust meter 27, and the force is the thrust generated by the engine; a calibration thrust meter 29 is also arranged between the static frame and the movable frame, so that the working thrust meter can be zeroed in time.
Each test bed 2 is matched with a set of exhaust system, the exhaust system comprises an injection cylinder 31 and an exhaust cylinder 32, the rear end of the injection cylinder 31 is inserted into the exhaust cylinder 32, and high-temperature fuel gas in a test workshop is led into the exhaust tower together. The air inlet of the injection pipe 31 is arranged at the outlet of the tail nozzle of the engine, a plugging cover 37 is arranged at the air inlet, the lower part of the plugging cover is a movable hinge support, the upper part of the plugging cover is a quick clamp, and the assembly and disassembly processes of the plugging cover are all faster. The plugging cover 37 is taken down during the test, and the injection cylinder 31 is used for drainage; after the test is finished, a sealing cover 37 is arranged to prevent the backflow of fuel gas, and a high-temperature-resistant fluororubber sealing strip is arranged on the periphery of the sealing cover to ensure the sealing reliability.
The front part and the rear part of the injection cylinder are provided with brackets with pulleys, the rear end of the test bed arrangement position 12 of the working platform 1 is provided with a guide rail, namely the rear end of the outlet of the tail nozzle of the engine is provided with a guide rail, and the bracket 34 at the front part of the injection cylinder is arranged on the guide rail; the front end inside the exhaust tube 32 is also provided with a guide rail, and the rear bracket 35 of the injection tube is arranged on the guide rail; the ejector tube 31 can move forward and backward along the axial direction, the distance from the inlet section of the ejector tube 31 to the section of the tail nozzle of the engine is adjusted, the distance between the inlet section of the ejector tube 31 and the outlet section of the tail nozzle of the engine is 1-1.5 times of the diameter of the outlet section of the tail nozzle in the embodiment, the exhaust back pressure can be ensured not to influence the thrust performance of the engine in the range, the normal operation of the ejector tube can be ensured, and the gas backflow of the tail nozzle is not generated; the movable range in this embodiment is 1000mm.
As shown in fig. 6, a sealing cover 33 is arranged at the injection port between the exhaust tube 32 and the injection tube 31, the sealing covers 33 of the injection ports of each group of exhaust systems are uniformly distributed on the wall body of the test workshop a, and fluororubber sealing strips are also arranged on the periphery of the sealing cover 33; the plugging cover is supported by adopting a double-hinge structure 36, so that the verticality and the tightness of the central lines of the plugging cover 33 and the exhaust funnel 32 are ensured, and the labor intensity of test personnel is reduced; a plurality of exhaust drums 32 extend into the same exhaust tower B adjacent to the test room; in this embodiment, the exhaust funnel 32 is made of carbon steel material, and the expansion section is uniformly provided with a plurality of small holes with diameters, the small holes are used for eliminating exhaust noise, the total flow area of the small holes is about 3 times of the sectional area of the front section of the exhaust funnel, and obvious exhaust blockage is not caused; as shown, the rear of the exhaust stack 32 is mounted on the ground by a swing frame 38, and when the exhaust stack 32 expands due to heat, the swing frame 38 swings to compensate for the elongation of the exhaust stack.
As shown in the figure, the working platform 1 is provided with a stair at the front and rear, and the stair at the rear is mainly arranged for facilitating the test personnel to open and close the exhaust pipe plugging cover 33.
The whole machine test zone Z1 is independently arranged outside the working platform and mainly comprises a plurality of reserved interfaces connected with the whole machine, a group of exhaust systems Z3 are matched with the reserved interfaces, the injection port plugging cover of the exhaust systems is arranged on the wall body of the test workshop A, and the exhaust barrels extend into the same exhaust tower B where the exhaust barrels of other test racks are located.
As shown in fig. 7, the fuel system includes a fuel tank 41, a fuel pump 42, a pressure regulating valve 43, a mass flow meter 45, a turbine flow meter 46, a cumulative flow meter 44, a fire prevention solenoid valve 48, a filter 47, and a piping system; the fuel tank 41, the fuel pump 42 and the pressure regulating valve 43 are arranged among the fuels to perform preliminary storage and recall of the fuels; the fuel is transmitted from a main road to a test workshop, the main road is divided into a plurality of parallel fuel supply pipelines in the test workshop, one fuel supply pipeline is connected with a reserved interface of a whole machine test area Z1, and an accumulated flowmeter 44 is arranged on the fuel supply pipeline and is used for measuring the fuel volume for filling the whole machine of the aircraft; the remainder is connected with the oil supply pipeline in parallel, and is respectively connected with the oil inlet of the engine 6 on the test bed 2, and the path is sequentially connected with the mass flowmeter 45, the turbine flowmeter 46 and the fireproof electromagnetic valve 48 in series, so that the turbine flowmeter 46 has the advantages of high response speed and small flow resistance, and the disadvantage is that the measurement accuracy is lower; the mass flowmeter 45 has the characteristics of high flow measurement precision, but has slower response speed and larger flow resistance, the two can be used in a complementary way, and the fire-proof electromagnetic valve 48 controls the opening and closing of the pipeline and effectively prevents the occurrence of fire accidents; the fuel system pipeline is laid overhead along the walls of the fuel room and the test room, so that the pipeline is convenient to check and maintain; the fuel oil pipeline of the test bed is not pre-buried or ditched, so as to prevent the occurrence of undetectable fuel oil leakage and oil gas aggregation; the connection of the fuel system line to the engine inlet is made using a quick connector 49.
As shown in fig. 8, the air compression system includes an air compressor 51, a rear cooler 52, an air tank 53, a dryer 54, a filter 55, a pressure reducing valve 57, a solenoid valve 58, and a pipe system; the air compressor 51, the rear cooler 52, the storage tank 53 and the drying agent 54 are arranged in the tool room D; a main pipeline extends from the tool room to the test room A, a pressure reducing valve 57 is arranged on the main pipeline, and a drain valve 56 is arranged at the inlet part of the test room A, so that dust, moisture, oil and the like in the pipeline can be timely removed; the main pipeline is further divided into a plurality of branch pipelines connected in parallel in the test room, wherein one branch pipeline is connected with a reserved interface of the whole test area Z1, the other branch pipelines are respectively connected with an air inlet of an engine 6 on each test bed 2, and a solenoid valve 58 is arranged on the path of the branch pipeline to control the pipeline to be opened and closed; the pipeline of the air compression system is laid in one or two test workshops, so that compressed air can be simultaneously conveyed to a plurality of test workshops; the connection of the air compression system line to the engine intake employs a quick connector 59.
The test bed system also comprises a test system, an electrical system and an industrial television system.
The test system comprises air pressure, hydraulic pressure, air temperature, oil temperature, vibration, rotating speed, flow, thrust acquisition equipment and an LXI system, and the overall layout is as follows: a test cabinet is placed on a test site, main test equipment is placed in the test cabinet, a test circuit pipeline is installed in the test cabinet, a computer is placed on a test console on an operation room, the test instrument and the computer are in data communication through a network, automatic data recording is triggered according to a rotating speed signal in a test process, and steady-state performance data is triggered and recorded according to a steady-state point.
The electric system consists of AC/DC system, PLC, regulated power supply, operation desk, electric throttle operation system, starting power supply, electric load and other equipment. The electric system can realize the control of equipment such as engine control, fuel oil control, electric load, air compressor and the like, mainly realizes the control of auxiliary equipment of an engine and a vehicle platform through a PLC, realizes the automatic protection and stopping functions of automatic overturning, overtemperature, low voltage, low fuel oil pressure and the like, can effectively protect the test safety of the engine, and realizes remote control on an upper computer and a touch screen through all operations.
The industrial television system mainly comprises an explosion-proof spherical camera arranged between an infrared camera and fuel oil of a test workshop and an industrial Ethernet and optical fiber transmission technology; and timely feeding back the real-time conditions of the workshops to the console.
The above embodiments are merely further explanation and illustration of the present invention, and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made by those skilled in the art to which the present invention pertains on the basis of the above-described inventive concept should be included within the scope of protection of the present invention as set forth in the appended claims.
Claims (8)
1. A turbojet test bed system, which is characterized by comprising a bed mechanical system, an exhaust system, a fuel system and an air compression system; the rack mechanical system is arranged in the test workshop and comprises a plurality of test racks, a working platform and a complete machine test area; the test bed comprises an installation platform and an engine installation frame; the working platform is provided with a plurality of corresponding test bed arrangement positions; the mounting platform is arranged in a test bed arrangement position on the working platform and supports the engine mounting frame and the engine; the rear end of the arrangement position of each test bed is provided with a guide rail; the exhaust system comprises an injection cylinder and an exhaust cylinder, and each test bed corresponds to one group of exhaust systems; the air inlet of the injection cylinder is arranged at the outlet of the tail jet pipe of the engine, the air outlet of the injection cylinder is inserted into the exhaust cylinder, and the front end of the exhaust cylinder is provided with a guide rail; the injection cylinder is provided with a belt wheel bracket and can axially move along the rear end of the arrangement position of the test bed and the guide rail in the exhaust cylinder; the injection ports between the exhaust barrels and the injection barrels are provided with blocking covers, the injection port blocking covers of each group of exhaust systems are uniformly distributed on the wall body of the test workshop, and a plurality of exhaust barrels extend into exhaust towers adjacent to the test workshop; the whole machine test area is independently arranged outside the working platform and is matched with a group of exhaust systems, the injection port plugging cover of the exhaust systems is arranged on the wall body of the test workshop, and the exhaust pipe extends into an exhaust tower adjacent to the test workshop; the main bodies of the fuel oil system and the air compression system are arranged in a tool room outside the test workshop, and fuel oil and air are transferred to the test workshop through pipelines;
The fuel system comprises a fuel tank, a fuel pump, a pressure regulating valve, a mass flowmeter, a turbine flowmeter, an accumulated flowmeter, a fireproof electromagnetic valve, a filter and a pipeline system; the fuel tank, the fuel pump and the pressure regulating valve are arranged among the fuels to perform preliminary storage and calling of the fuels; the test room is connected with a plurality of oil supply pipelines in parallel, one oil supply pipeline is connected with a reserved interface of the whole machine test area, and an accumulated flowmeter is arranged on the reserved interface; the remainder is connected in parallel with the oil supply pipeline, which is respectively connected with an engine oil inlet on the test bed, and the path is sequentially connected with a mass flowmeter, a turbine flowmeter and a fireproof electromagnetic valve in series;
The air compression system comprises an air compressor, a rear cooler, an air storage tank, a dryer, a filter, a pressure reducing valve, an electromagnetic valve and a pipeline system; the air compressor, the rear cooler, the storage tank and the drying agent are arranged among tools; a main pipeline extends from the tool room to the test workshop, and a pressure reducing valve is arranged on the main pipeline; the main pipeline is further divided into a plurality of parallel branch pipelines, one branch pipeline is connected with a reserved interface of a whole test area, the other branch pipelines are respectively connected with an engine air inlet on each test bed, and a solenoid valve is arranged on the path of the branch pipeline.
2. The turbojet test bed system of claim 1 wherein the work platforms are each provided with a stair in front of and behind.
3. The turbojet test bed system of claim 1 wherein the fuel system piping is laid overhead along the walls of the fuel room and the test room.
4. A turbojet test bed system as defined in claim 3, wherein said fuel system piping is connected to an engine inlet by a quick connector.
5. The turbojet test bed system of claim 1 wherein the air compression system is pre-buried with the piping from tool room to test room and wherein the piping within the test room is overhead.
6. The turbojet test bed system of claim 5 wherein the air compression system conduit is connected to the engine intake by a quick connect.
7. The turbojet test bed system of claim 5 wherein the piping of the set of air compression systems is laid down in one or two test workshops.
8. The turbojet test bed system of claim 1 further comprising a test system, an electrical system, and an industrial television system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811527572.XA CN109443788B (en) | 2018-12-13 | 2018-12-13 | Turbojet engine test bed system |
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| CN201811527572.XA CN109443788B (en) | 2018-12-13 | 2018-12-13 | Turbojet engine test bed system |
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| CN109443788A CN109443788A (en) | 2019-03-08 |
| CN109443788B true CN109443788B (en) | 2024-05-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726561A (en) * | 2019-10-18 | 2020-01-24 | 中国科学院力学研究所 | Small-size turbojet engine test bench |
| CN110763473A (en) * | 2019-12-02 | 2020-02-07 | 北京航天三发高科技有限公司 | Engine test bed and test method thereof |
| CN110749449A (en) * | 2019-12-02 | 2020-02-04 | 北京航天三发高科技有限公司 | Supersonic engine test bed and test method thereof |
| CN110763472A (en) * | 2019-12-02 | 2020-02-07 | 北京航天三发高科技有限公司 | Engine test bed and test method thereof |
| CN112284743B (en) * | 2020-10-20 | 2023-07-25 | 重庆特泰科技有限公司 | Engine testing device |
| CN112345255B (en) * | 2020-10-29 | 2023-02-03 | 中国航发南方工业有限公司 | Complete machine process test run rack of turboshaft engine |
| CN113945387B (en) * | 2021-09-19 | 2023-11-28 | 中国航空工业集团公司西安飞机设计研究所 | Ground pulley test method for hair extension system |
| CN115436065B (en) * | 2022-11-08 | 2023-03-24 | 中国航发四川燃气涡轮研究院 | Multifunctional rack for aircraft engine test bed |
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| CN202101852U (en) * | 2011-04-19 | 2012-01-04 | 中国南方航空工业(集团)有限公司 | Multidirectional exhaust ejector system of engine test bed |
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| FR3044093A1 (en) * | 2015-11-19 | 2017-05-26 | Snecma | TEST BENCH FOR TURBOJET ENGINE |
| CN209820773U (en) * | 2018-12-13 | 2019-12-20 | 中科航空动力(株洲)装备制造研究院有限公司 | Turbojet engine test bed system |
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| CN202101852U (en) * | 2011-04-19 | 2012-01-04 | 中国南方航空工业(集团)有限公司 | Multidirectional exhaust ejector system of engine test bed |
| CN202693314U (en) * | 2012-06-15 | 2013-01-23 | 北京中陆航星机械动力科技有限公司 | Turbojet engine test bed |
| FR3044093A1 (en) * | 2015-11-19 | 2017-05-26 | Snecma | TEST BENCH FOR TURBOJET ENGINE |
| CN209820773U (en) * | 2018-12-13 | 2019-12-20 | 中科航空动力(株洲)装备制造研究院有限公司 | Turbojet engine test bed system |
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