CN211740626U - Combined power multichannel spray pipe test device - Google Patents
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- CN211740626U CN211740626U CN201920733004.9U CN201920733004U CN211740626U CN 211740626 U CN211740626 U CN 211740626U CN 201920733004 U CN201920733004 U CN 201920733004U CN 211740626 U CN211740626 U CN 211740626U
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Abstract
The utility model discloses a combination power multichannel spray tube test device simulates turbine base combination cycle engine's multichannel spray tube, can observe the device of the air current mixing condition. The utility model discloses can let in the indicator without the colour and observe its simulation experiment of the mixed condition, explore the basic law that the air current under the multichannel combination spray tube, different pipeline behavior mixes under the low-speed flight condition. The utility model discloses turbine engine, rocket engine and ramjet are simulated respectively to three passageway. The opening and closing of the upper channel and the middle channel are controlled by the adjusting device, and the situation of TBCC mode conversion is simulated. The air flow speed is observed and calculated through a differential pressure meter, and the air flow speed is controlled to reach the corresponding rotating speed according to the air flow speed. And (4) spraying indicators with different colors through different channels to observe the mixing condition of the air flow. The research on the airflow change rule during the mode conversion of the multi-channel spray pipe is beneficial to the research and development of the spray pipe combining power.
Description
Technical Field
The utility model belongs to the aircraft field relates to combination power multichannel spray tube test device (one kind can be used to turbine base combination power circulation multichannel spray tube under the different airspeeds).
Background
The hypersonic aerocraft is characterized by higher than impulse, wide speed range, capability of vertical take-off and landing, low cost and wide application value in the future research of aerocrafts. Currently, the operating speed range of the existing air-breathing engine is narrow. The operating Mach numbers of the turbojet engine and the turbofan engine are between 0 and 3, and the operating Mach numbers of the ramjet engine are between 2 and 6, so that the requirement of the hypersonic aircraft on the wide speed range cannot be met by any air suction type engine. The rocket engine can work between Mach number 0-10, but needs to carry fuel and oxygen, has small specific impulse, cannot be recycled and has low economy. Therefore, extensive and intensive research has been conducted on combined cycle engines both domestically and abroad since the last 60 th century.
A turbo-Based Combined-Cycle (TBCC) is one type of Combined-Cycle engine. The TBCC engine is a wide-speed-range hypersonic power system formed by scientifically combining power forms of a ramjet engine, a rocket engine and the like on the basis of a turbine engine. The super-sonic speed-adjustable power propulsion system has the advantages of higher specific thrust, wide flight speed range, reusability and the like, and is an ideal power propulsion system for hypersonic speed flight in full speed regions.
In order to realize conversion under different working modes, the TBCC power system needs to have an adjusting mechanism with simple structure, stable operation, reliability, safety and convenient maintenance. The prior structure has more movable parts and complicated structure, and is difficult to arrange a driving part.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a combination power multichannel spray tube test device.
The utility model provides a technical scheme that its technical problem adopted is:
a combined power multi-channel spray pipe test device comprises a power module, an air flow speed measuring module, a rectifying module, a pipeline module, a color indicator module, an adjusting mechanism and a supporting structure, wherein the power module is used for measuring the air flow speed; the power module includes: the device comprises a motor, an electronic speed regulator, a wire, a receiver, a power supply and a remote controller; the rectification module includes: the device comprises a rectifying pipeline, a suction pipe array and a wire netting; the color indicator module includes: a charging hopper, a charging hose, colored powder; the airflow velocity measurement module includes: the device comprises a thick hose, a U-shaped pipe, an adapter, a thin hose and a thin metal pipe; the pipeline module is a square pipeline and a tail spray pipe; the adjustment mechanism includes: the device comprises a triangular adjusting plate, a bearing, a square rotating shaft and a steering engine; the support structure includes: motor support and steering wheel support.
The testing device is characterized by further comprising an upper channel, a middle channel and a lower channel, wherein motors are arranged on the three channels, the motors are connected with a rectifying pipeline through motor supports, the rectifying pipeline is connected with a square pipeline, the square pipeline is connected with a tail spray pipe together, adjusting devices are arranged at the connection positions of the upper channel, the middle channel and the tail spray pipe, the adjusting devices are fixed on the tail spray pipe and used for controlling the opening and closing of the upper pipeline and the middle pipeline, a feeding hose is fixed above the square pipe section supported by the motors through a small hole I and connected with a feeding hopper, and two small holes are formed above the square pipeline and used for being connected with an air flow velocity measuring module.
Further, the following steps: a suction pipe array is arranged in the rectifying pipeline, wire nets are arranged at two ends of the suction pipe array, and the suction pipe array is fixed in the rectifying pipeline through the wire nets.
Furthermore, the air flow speed measuring module comprises a thick hose, a U-shaped pipe, an adapter, a thin hose and two metal pipes, wherein one metal pipe is inserted into the middle of the square pipe through a small hole II and is bent for 90 degrees to be horizontal, the pipe orifice of the metal pipe faces to the air flow direction, and the end part of the metal pipe, which is positioned outside the square pipe, is sequentially connected with one ends of the thin hose, the adapter, the thick hose and the U-shaped pipe;
the other metal pipe is connected with the square pipeline through the other small hole II, one end opening of the metal pipe is flush with the inner side face of the square pipeline, and the other end opening of the other metal pipe is sequentially connected with the other thin hose, the other adapter, the other thick hose and the other end of the U-shaped pipe.
Furthermore, the adjusting device is a triangular adjusting plate, and the steering engine drives the triangular adjusting plate to rotate around a square rotating shaft fixed on the tail spray pipe so as to control the opening and closing of the pipeline; the triangular adjusting plate is designed in a hollow mode.
Further, the motor controls the rotating speed through a power control module, and the power control module comprises an electronic speed regulator, a receiver, a power supply and a remote controller.
Further, the motor support is in a shape of a contracted round square.
Furthermore, scale marks are arranged on the U-shaped pipe, and the rectifying pipeline, the square pipeline and the tail nozzle are all acrylic transparent square pipelines.
Furthermore, the tail nozzle is in an inverted triangle shape and is a unilateral expansion tail nozzle designed by a characteristic line method.
Furthermore, the rectifying pipeline and the square pipeline are connected in a concave-convex platform nesting structure.
The utility model discloses the multichannel spray tube of simulation Turbine base Combined Cycle engine (Turbine-Based-Combined-Cycle, TBCC) can observe the device of air current mixing condition. The TBCC engine is based on a turbine engine, integrates a ramjet engine and a rocket engine, and is combined into a wide-speed-range hypersonic power system. The utility model discloses can let in the indicator without the colour and observe its simulation experiment of the mixed condition, explore the basic law that the air current under the multichannel combination spray tube, different pipeline behavior mixes under the low-speed flight condition. The utility model discloses be equipped with three passageway, simulate turbine engine, rocket engine and ramjet respectively. The opening and closing of the upper two channels are controlled by the adjusting device, and the situation of TBCC mode conversion is simulated. The air flow speed is observed and calculated through the differential pressure gauge, and the air flow speed is used for controlling the motor to reach the corresponding rotating speed. And (4) spraying indicators with different colors through different channels to observe the mixing condition of the air flow. The research on the airflow change rule during the mode conversion of the multi-channel spray pipe is beneficial to the research and development of the spray pipe combining power.
The utility model has the advantages that: compare with present most engine spray pipes, combination power multichannel spray pipe have following function: 1. the wide-speed range works, and can simulate the combined cycle of a turbine engine, a rocket engine and a ramjet in a TBCC system flying from 0 to 10 Mach number full-speed ranges; 2. the airflow condition during modal switching is researched, and the airflow flowing condition at the moment of switching the starting and stopping of three engines can be researched by the spray pipe; 3. the air flow mixing condition of the tail nozzle can be researched, and the air flow mixing condition caused by the difference of air flow speeds in all pipelines in the tail nozzle can be observed according to the air flows with different colors sprayed by different motors.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is a left side view of the overall structure of the present invention;
FIG. 4 is a view of the round-to-square motor support of the present invention;
FIG. 5 is a triangular adjusting plate of the present invention;
FIG. 6 shows the triangular adjusting plate of the present invention in the extreme position in the jet nozzle (the left side of FIG. 6 shows the triangular adjusting plate open, and the right side shows the triangular adjusting plate closed);
FIG. 7 shows the pipe connection of the present invention;
FIG. 8 shows an array arrangement of rectifier modules and suction pipes according to the present invention;
FIG. 9 shows the wire netting placement position of the present invention;
FIG. 10 is a schematic view of the connection between a U-shaped pipe and a pipeline according to the present invention;
fig. 11 is a schematic perspective view of the present invention;
in the figure, the device comprises a square rectifying pipeline 1, a round-square motor support 2, a rectifying suction pipe 3, a wire netting 4, a square pipeline 5, a triangular adjusting plate 6, a bearing 7, a tail nozzle 8, a square rotating shaft 9, a ducted motor 10, a steering engine 11, a steering engine support 12, a feeding funnel 13, an electric regulator 14, a feeding hose 15, an electric wire 16, a power supply battery 17, a thick hose 18, a U-shaped pipe 19, an adapter 20, a thin hose 21 and a thin metal pipe 22.
Detailed Description
The details and the working conditions of the specific structure of the combined power multichannel nozzle test device provided by the utility model are explained in detail in the following by combining the schematic diagram.
A combined power multi-channel spray pipe test device comprises a power module, an air flow speed measuring module, a rectifying module, a pipeline module, a color indicator module, an adjusting mechanism and a supporting structure, wherein the power module is used for measuring the air flow speed; the power module includes: the motor 10, the electronic speed regulator 14, the electric wire 16, the receiver, the power supply 17 and the remote controller; the rectification module includes: the device comprises a rectifying pipeline 1, a suction pipe array 3 and a wire netting 4; the color indicator module includes: a feed hopper 13, feed hose 15, colored powder; the gas flow rate measurement module (i.e., differential pressure gauge) includes: a thick hose 18, a U-shaped pipe 19, an adapter 20, a thin hose 21 and a thin metal pipe 22; the pipeline module is a square pipeline 5 and a tail spray pipe 8; the adjustment mechanism includes: the device comprises a triangular adjusting plate 6, a bearing 7, a square rotating shaft 9 and a steering engine 11; the support structure includes: motor support 2 and steering engine support 12.
The testing device comprises an upper channel, a middle channel and a lower channel, wherein motors 10 are arranged on the three channels, the motors 10 are connected with a rectifying pipeline 1 through motor supports 2, the rectifying pipeline 1 is connected with a square pipeline 5, the square pipeline 5 is jointly connected with a tail spray pipe 8, adjusting devices are arranged at the joints of the upper channel and the middle channel and the tail spray pipe 8, the adjusting devices are fixed on the tail spray pipe 8 and used for controlling the opening and closing of the upper pipeline and the middle pipeline 5, a feeding hose 15 is fixed above the square pipeline section of the motor supports 2 through a small hole I, the feeding hose 15 is connected with a feeding funnel 13, and two small holes are formed above the square pipeline 5 and used for connecting an air flow speed measuring module (namely a differential pressure gauge).
Be provided with straw array 3 in the rectification pipeline 1, the both ends of straw array 3 are provided with wire netting 4, and wire netting 4 fixes straw array 3 in rectification pipeline 1.
The air flow speed measuring module (namely a differential pressure gauge) comprises a thick hose 18, a U-shaped pipe 19, a joint 20, a thin hose 21 and two metal pipes 22, wherein one metal pipe 22 is inserted into the middle position in the square pipe 5 through one small hole II and is bent for 90 degrees to be horizontal, the pipe orifice of the metal pipe faces to the air flow direction, and the end part of the metal pipe 22, which is positioned outside the square pipe 5, is sequentially connected with one ends of the thin hose 21, the joint 20, the thick hose 18 and the U-shaped pipe 19;
the other metal tube 22 is connected with the square pipe 5 through another small hole II, one end opening of the metal tube 22 is flush with the inner side surface of the square pipe 5, and the other end opening of the other metal tube 22 is sequentially connected with another thin hose 21, another adapter 20, another thick hose 18 and the other end of the U-shaped tube 19.
The adjusting device is a triangular adjusting plate 6, and the steering engine 11 drives the triangular adjusting plate 6 to rotate around a square rotating shaft fixed on the tail spray pipe 8 so as to control the opening and closing of the pipeline; the triangular adjusting plate 6 is designed in a hollow mode.
The motor 10 controls the speed through a power control module comprising an electronic governor 14, a receiver, a power supply 17 and a remote control.
The motor support 2 is in a shape of a contracted round square.
The U-shaped pipe 19 is provided with scale marks, and the rectifying pipeline 1, the square pipeline 5 and the tail spray pipe 8 are all acrylic transparent square pipelines.
The tail nozzle 8 is in an inverted triangle shape and is a unilateral expansion tail nozzle designed by a characteristic line method.
The rectifying pipeline 1 and the square pipeline 5 are connected in a concave-convex platform nested structure.
The power module controls the motors 10 of the upper channel, the middle channel and the lower channel to reach different rotating speeds at the same time through a remote controller so as to control different air inlet speeds and realize the functions of simulating turbine engines, rocket engines and jet engines with different Mach numbers.
The air flow speed measuring module simulates a pitot tube, and according to the principle of Bernoulli equation, the difference of total pressure and static pressure is measured to be dynamic pressure, so that the function of calculating the air flow speed is realized.
The rectification module realizes the function of converting airflow from a swirling and unstable turbulent flow state into a stable laminar flow state.
The pipeline module is provided with a unilateral expansion exhaust nozzle 8 designed by a characteristic line method, so that the functions of mixing air flows of different engine modules and increasing gas impulse are realized.
The color indicator module realizes observation of the air flow mixing condition.
The adjusting mechanism is characterized in that a steering engine 11 controls a triangular adjusting plate 6 to rotate around a square rotating shaft 9 fixed on a tail nozzle 8, the area of a throat channel and the opening and closing of the channel are adjusted to control the on-off of air flow, and therefore the conversion function of different modules of the TBCC engine system is achieved. The adjusting mechanism is characterized in that the steering engine 11 is controlled to rotate by a remote controller, so that the rotation adjusting function of the triangular adjusting plate 6 is realized.
The supporting structure is formed by a 3D printed round-to-square motor support 2, a steering engine support 12, a rectifying pipeline 1 and a test device support frame (not shown) to achieve the wrapping and supporting functions of the whole test device.
In one embodiment, the utility model discloses based on parallel type turbine base combination circulation power engine and unilateral expansion exhaust nozzle, the upper channel is turbojet engine passageway, and the intermediate passage is rocket engine passageway, and the lower passageway is ramjet engine passageway. The tail parts of the vortex spraying passage and the rocket passage are provided with a section of round-to-square passage and are finally connected to the tail spraying pipe.
The utility model discloses be equipped with square rectifying tube way, circle and change square motor and support, straw array, wire netting, square pipeline, triangle regulating plate, bearing, exhaust nozzle, square pivot, duct motor, steering wheel support, feed hopper, electronic governor, reinforced hose, electric wire, power battery, thick hose, U-shaped pipe, adapter, thin hose, thin tubular metal resonator.
The culvert motor 10 is provided with an embedded round-to-square motor support 2, the motor support 2 is a round-to-square transition structure printed by a 3D printer, the round inner diameter is matched with the outer diameter of the culvert motor, the square size is matched with a rear rectifying module square tube, a small hole I is arranged at the rear part of the square size and matched with the rear rectifying module square tube, a feeding hose 15 is inserted into the feeding hose 15, colored powder is introduced into the feeding hose, a square rectifying pipeline 1 is connected behind the motor support 2, a rectifying suction tube array 3 is fully arranged in the square rectifying pipeline 1 to form a honeycomb structure, wire netting 4 is arranged at two ends of the rectifying suction tube array 3 for fixation, a square pipeline 5 is connected behind the square rectifying pipeline 1, two small holes II are arranged on the square pipeline 5 and connected with a thick hose 18, an adapter 20, a thin hose 21 and a thin metal pipe 22 through a U-shaped pipe 19, the gas pressure is measured, the gas flow rate, the triangular adjusting plate 6 is fixed in the tail nozzle 8 through a square rotating shaft 9, a steering engine support 12 is arranged on the side wall of the tail nozzle 8, and a steering engine 11 in the steering engine support 12 is fixed with the square rotating shaft 9.
A power module: the device consists of a ducted motor 10 with the diameter of 90mm, an electronic speed regulator 14, an electric wire 16, a receiver, a 12V power supply battery 17 and a remote controller. The rotation speeds of the three motors are controlled by a remote controller. The function is as follows: providing a constant supply of air.
The air velocity measuring module simulates a pitot tube, two round small holes are drilled above a square tube in the pipeline module, a metal tube is inserted, the middle position in one inserted square tube is bent by 90 degrees to the horizontal (the metal tube mouth faces the incoming flow direction) to measure static pressure, one inserted square tube is parallel and level to the lower wall surface of the upper surface of the square tube, and then sealing is performed. The upper end of the metal pipe is connected with a small section of thin hose, the thin hose is connected with the adapter and then connected with the thick hose, the sealing is also well done, and the other end of the thick hose is connected with the U-shaped pipe. The two thin metal tubes are connected to the U-shaped tube by a thin hose, a thick hose and an adapter. The dynamic pressure is calculated by Bernoulli's equation and then the air velocity is calculated.
The rectification module consists of a suction pipe array 3, a wire netting 4 and an acrylic spliced pipeline with the axial length of 100 mm. The connection mode of the rectification module and the pipelines at two ends is shown in figure 7, square shells with the thickness of 3mm and the height of 10mm are cut at the outer sides of the front and rear pipelines to form inner bosses with the thickness of 7mm and the height of 10mm, square shells with the thickness of 7mm and the height of 10mm are cut at the inner sides of the rectification module to form outer bosses with the thickness of 3mm and the height of 10mm, and the two bosses can be spliced together; the rectifying pipeline is filled with straws with the diameter of 10mm to form a straw array shown in figure 8; the dense wire netting is placed at the joint between the pipelines at the two ends of the suction pipe, as shown in fig. 9, the grid width of the wire netting is slightly smaller than the diameter of the suction pipe, so that when the pipelines are connected, the wire netting is fixed, and then the position of the suction pipe is fixed. The function is as follows: and (4) finishing the airflow entering the pipeline. The motor rotation can produce rotatory air current, and the direction is irregular, influences follow-up observation effect. After passing through a section of straight straw, the airflow direction is consistent horizontally, and the air flow is smooth.
The pipeline module designs a single-side expansion tail nozzle 8 by utilizing a characteristic line method. The function is as follows: and the airflows of different channels are mixed in the tail spray pipe and discharged. In the actual aircraft engine, the tail nozzle not only plays a role in exhausting, but also can continuously accelerate the gas discharged from a combustion chamber or a turbine, convert the pressure energy and the heat energy in the gas into kinetic energy, increase the impulse of the gas and further increase the thrust of the engine.
The adjusting module consists of a square rotating shaft 9, a bearing 7 and a triangular adjusting plate 6. The section of the triangular adjusting plate is similar to a fan shape and consists of a section of arc line with a larger diameter, an arc line with a smaller diameter and two straight lines. In order to reduce the load borne by the steering engine, the triangular plate is made into a hollow structure, and rib plate structures are added on two sides of the triangular plate in order to increase the strength of the triangular plate. As the TBCC tail pipe needs to work in a large pressure drop ratio range and the mass flow change range of the tail pipe is large, a geometrically variable adjusting structure is required to realize the large-range adjustment of the throat area and the outlet area of the tail pipe. The triangular adjusting plates are respectively arranged in the rocket channel and the turbojet channel and rotate around the rotating shaft fixed on the tail nozzle, so that the purposes of adjusting the throat area and opening and closing the channel are achieved. The upper plate and the lower plate of the triangular adjusting plate are straight plates, the intersection line of the lower plate and the lateral wall of the unilateral expansion exhaust nozzle and the upper expansion surface is the same, the front plate is in the shape of an arc curved surface taking the center of the rotating shaft as the center of a circle, and the front plate is always tangent to the upper plate of the contraction section of the exhaust nozzle in the rotating process. The driving part of the triangular adjusting plate and the accessories thereof are arranged in the lateral space outside the channel. The adjusting structure is not installed in the stamping channel spray pipe, and the opening state is always kept as follows: the baffle is adjusted to be opened and closed under the action of the steering engine, so that the purposes of adjusting the on-off of air flows of different pipelines, realizing the mode conversion of the TBCC engine and changing the flight speed are achieved. The mechanism is simple and reliable and is convenient to maintain.
The color indicator module consists of three different colors of powder, namely a charging hopper 13, a charging hose 15, green, red and purple, and the green, red and purple powder is used as a color indicator to respectively indicate the flowing conditions of the airflow of the upper channel, the middle channel and the lower channel. In the experimentation, constantly add the powder in to feeding funnel, the motor rotates, lets it flow through the pipeline along with the air current and realizes mixing in the exhaust nozzle, the mixed condition of the air current of being convenient for observe.
The adjusting mechanism driving module consists of a steering engine 11 (a steering engine, a steering engine disk and a switching component between the steering engine disk and a shaft). The remote controller controls the steering engine to drive the adjusting triangle to rotate around the shaft fixed on the tail nozzle.
The supporting structure consists of two parts, namely a motor support 2 and a steering engine support 12. The motor support mainly comprises a motor with a circular section, a rear pipeline with a square section and a middle structure with a section of circle to square. Printing a section of component which is integrally in a round-to-square shape through 3D, wherein a motor can be embedded into one end of the component, and the other end of the component is connected with a rear square tube in a tenon-and-mortise structure; the steering engine support is printed in a 3D mode, a groove-shaped structure is printed and placed into the steering engine, and two small cylinders are protruded below the groove-shaped structure and embedded into the groove-shaped structure through holes formed in the side face of the tail nozzle.
The following is given and utilized the utility model discloses carry out the whole process of experiment:
1) the local atmospheric pressure Pa and the ambient temperature Ta were recorded before the experiment.
2) Connecting a differential pressure meter (namely an airflow speed measuring module) to a measuring point (a small hole II), adjusting the liquid levels at the two ends of the U-shaped pipe to the same horizontal plane, and recording an initial reading; the state that can reach the experiment requirement through remote controller debugging motor, steering wheel: the motor rotation speed ratio of the upper channel, the middle channel and the lower channel is 1:2:4, and the steering engine can be freely opened and closed to any desired position.
3) Opening the upper triangular adjusting plate, closing the lower triangular adjusting plate, starting the upper channel motor, always keeping uniform speed to add yellow powder in the running process of the motor, and observing the airflow in the tail spray pipe until the airflow state is stable; observing the change of a differential pressure meter connected with the upper channel (namely observing the liquid level change of the U-shaped pipe 19 connected with the upper channel), and recording the reading of the differential pressure meter (calculating the differential pressure);
4) opening a middle triangular adjusting plate, slowly starting a motor of a middle channel, increasing the rotating speed to be about 2 times of the rotating speed of a motor of an upper channel, uniformly adding red powder in the running process of the motor, and observing the mixing condition of airflow at the tail part of a spray pipe in the processes of normally opening the motor of the upper channel and opening the motor of the middle channel through the powder mixing condition of yellow and red colors until the airflow is stable; the change of the differential pressure gauge connected to the intermediate channel (the change of the liquid level of the U-tube 19 connected to the intermediate channel) was observed, and the differential pressure gauge reading (i.e., the differential pressure was calculated) was recorded.
5) And in the motor closing process, the mixing condition of the tail airflow of the spray pipe in the process of slowly closing the upper channel motor and normally opening the middle channel motor is observed through the powder mixing condition of yellow and red colors, until the upper channel motor is completely closed, the upper channel triangular adjusting plate is closed.
6) Slowly starting a motor of a lower channel, increasing the rotating speed to be about 2 times of the rotating speed of a motor of an intermediate channel, uniformly adding blue powder in the running process of the motor, and observing the mixing condition of airflow at the tail part of a spray pipe in the process that the motor of the intermediate channel is normally opened and the motor of the lower channel is opened through the mixing condition of the red powder and the blue powder until the airflow is stable; and (4) observing the change of the differential pressure gauge connected with the lower channel (namely observing the change of the liquid level of the U-shaped pipe 19 connected with the lower channel), and recording the indication of the differential pressure gauge (namely calculating the differential pressure).
7) The motor of the middle passage is closed slowly, in the motor closing process, the mixed condition of tail airflow of the spraying pipe in the process that the middle passage motor is closed slowly and the lower passage motor is normally opened is observed through the powder mixed condition of red and blue colors, and the lower passage triangular adjusting plate is closed until the middle passage motor is completely closed.
8) Slowly closing the motor of the lower channel, and ending the experiment; and (5) collating the experimental data and analyzing the air flow mixing condition of each state.
The utility model has the advantages that: compare with present most engine spray pipes, combination power multichannel spray pipe have following function: 1. the wide-speed range works, and can simulate the combined cycle of a turbine engine, a rocket engine and a ramjet in a TBCC system flying from 0 to 10 Mach number full-speed ranges; 2. the airflow condition during modal switching is researched, and the airflow flowing condition at the moment of switching the starting and stopping of three engines can be researched by the spray pipe; 3. the air flow mixing condition of the tail nozzle can be researched, and the air flow mixing condition caused by the difference of air flow speeds in all pipelines in the tail nozzle can be observed according to the air flows with different colors sprayed by different motors.
Claims (6)
1. The utility model provides a combination power multichannel spray tube test device which characterized in that: the device comprises a power module, an air flow speed measuring module, a rectifying module, a pipeline module, a color indicator module, an adjusting mechanism and a supporting structure;
the power module includes: a motor (10), a power control module and an electric wire (16);
the rectification module includes: the device comprises a rectifying pipeline (1), a suction pipe array (3) and a wire netting (4);
the color indicator module includes: a charging hopper (13), a charging hose (15), colored powder;
the airflow velocity measurement module includes: a thick hose (18), a U-shaped pipe (19), a joint (20), a thin hose (21) and a thin metal pipe (22);
the pipeline module is a square pipeline (5) and a tail spray pipe (8);
the adjustment mechanism includes: a triangular adjusting plate (6), a bearing (7), a square rotating shaft (9) and a steering engine (11);
the support structure includes: a motor support (2) and a steering engine support (12);
the testing device consists of an upper channel, a middle channel and a lower channel, wherein the three channels are respectively provided with a motor (10), the motor (10) is connected with a rectifying pipeline (1) through a motor support (2), a power control module controls the rotating speed of the motor (10) through an electric wire (16), the rectifying pipeline (1) is connected with a square pipeline (5), the square pipeline (5) is connected with a tail spray pipe (8) together,
the shape of the motor support (2) is round and square, a feeding hose (15) is fixed above a square pipe section of the motor support (2) through a first small hole, the feeding hose (15) is connected with a feeding hopper (13), two second small holes are formed above the square pipe (5) and used for connecting an air flow speed measuring module, the number of the thick hose (18), the number of the adapter (20), the number of the thin hose (21) and the number of the thin metal pipes are two, one thin metal pipe (22) is inserted into the middle position in the square pipe (5) through the second small hole and is bent for 90 degrees to be horizontal, the pipe orifice of the thin metal pipe faces the incoming air flow direction, and the end part, located on the outer side of the square pipe (5), of the thin metal pipe (22) is sequentially connected with one end of the thin hose (21), the adapter (20), the thick hose (18);
the other thin metal tube (22) is connected with the square pipeline (5) through the other small hole II, one end opening of the thin metal tube (22) is flush with the inner side surface of the square pipeline (5), the other end opening of the other thin metal tube (22) is sequentially connected with the other thin hose (21), the other adapter (20), the other thick hose (18) and the other end of the U-shaped tube (19),
a straw array (3) is arranged in the rectifying pipeline (1), wire netting (4) is arranged at two ends of the straw array (3), the straw array (3) is fixed in the rectifying pipeline (1) by the wire netting (4),
be provided with adjusting device in last, well passageway and jet-tail pipe (8) junction, adjusting device is triangle regulating plate (6), is equipped with bearing (7) and square pivot (9) on upper and middle square pipeline (5) and jet-tail pipe (8) junction, and steering wheel support (12) are equipped with to jet-tail pipe (8) lateral wall, and steering wheel (11) are fixed with square pivot (9) in steering wheel support (12), and steering wheel (11) drive triangle regulating plate (6) around fixing square pivot (9) on jet-tail pipe (8) rotatory, are used for controlling the switching of upper and middle square pipeline (5).
2. The combined power multichannel nozzle test device as claimed in claim 1, wherein: the triangular adjusting plate (6) is designed in a hollow mode.
3. The combined power multi-channel nozzle test device of claim 2, wherein: the U-shaped pipe (19) is provided with scale marks, and the rectifying pipeline (1), the square pipeline (5) and the tail spray pipe (8) are acrylic transparent square pipelines.
4. A combined power multi-channel nozzle test apparatus as claimed in claim 3, wherein: the tail nozzle (8) is in an inverted triangle shape and is a unilateral expansion tail nozzle designed by a characteristic line method.
5. The combined power multi-channel nozzle test device of claim 4, wherein: the rectifying pipeline (1) is connected with the square pipeline (5) in a concave-convex platform nested structure.
6. The combined power multi-channel nozzle test device of claim 5, wherein: the power control module comprises an electronic speed regulator (14), a receiver, a power supply (17) and a remote controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920733004.9U CN211740626U (en) | 2019-05-22 | 2019-05-22 | Combined power multichannel spray pipe test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920733004.9U CN211740626U (en) | 2019-05-22 | 2019-05-22 | Combined power multichannel spray pipe test device |
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| CN211740626U true CN211740626U (en) | 2020-10-23 |
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| CN201920733004.9U Expired - Fee Related CN211740626U (en) | 2019-05-22 | 2019-05-22 | Combined power multichannel spray pipe test device |
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| CN (1) | CN211740626U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186689A (en) * | 2019-05-22 | 2019-08-30 | 厦门大学 | A kind of assembly power multichannel nozzle test device |
| CN112610359A (en) * | 2020-12-28 | 2021-04-06 | 中国航天空气动力技术研究院 | Solid rocket engine fixing device of embedded installation |
| CN114603148A (en) * | 2022-05-11 | 2022-06-10 | 成都大学 | Preparation device and preparation method of spherical alloy powder |
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2019
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186689A (en) * | 2019-05-22 | 2019-08-30 | 厦门大学 | A kind of assembly power multichannel nozzle test device |
| CN112610359A (en) * | 2020-12-28 | 2021-04-06 | 中国航天空气动力技术研究院 | Solid rocket engine fixing device of embedded installation |
| CN112610359B (en) * | 2020-12-28 | 2022-02-22 | 中国航天空气动力技术研究院 | Solid rocket engine fixing device of embedded installation |
| CN114603148A (en) * | 2022-05-11 | 2022-06-10 | 成都大学 | Preparation device and preparation method of spherical alloy powder |
| CN114603148B (en) * | 2022-05-11 | 2022-07-05 | 成都大学 | Preparation device and preparation method of spherical alloy powder |
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