Gel propellant atomization test device

Abstract

The invention discloses a gel propellant atomization test device. The gel propellant atomization test device comprises a gel propellant supply part, a flow test part, an atomization part and a propellant circumferential collection part, a gel propellant is injected into a gel storage tank, high-pressure gas is introduced into the gel storage tank to extrude the gel propellant into a supply pipeline, a gel pneumatic valve is arranged in the supply pipeline, a piston is arranged in the pneumatic valve, high-pressure gas is introduced into the pneumatic valve, the piston blocks a channel, and the pneumatic valve is closed; after gas supply is stopped and pressure is relieved, a pneumatic valve is opened, a gas valve is opened, the gel propellant is divided into two parts, the two parts flow through a flow testing part and enter an atomization part, the atomization part comprises a track, a sliding block, a rotating table and an angular table, an injection needle reaches a designed position by adjusting the atomization part, and the gel propellant is sprayed out of the injection needle to complete atomization; the atomized gel propellant falls into collecting discs which are uniformly distributed in the circumferential direction of the propellant circumferential collecting part, and the atomization circumferential distribution condition is obtained by measuring the mass. The system is high in safety, comprehensive in data collection and simple and convenient to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of gel propellant atomization, and in particular relates to a gel propellant atomization test device. Background Art

[0002] Gel propellant is a new type of propellant with good performance, which is obtained by adding a small amount of gelling agent to solidify the mixture with traditional liquid propellant (jet fuel, hydrogen peroxide, unsymmetrical dimethyl hydrazine, etc.) as the main component. Gel propellant has the shear thinning property of non-Newtonian fluid, that is, it maintains solid properties under static and normal conditions, but exhibits liquid fluidity under external shear forces such as heating, pressurization, and stirring. Jet impact atomization is widely used in bi-component liquid rocket engines. Driven by high-pressure gas, two or more liquid jets ejected from the nozzle collide with each other at a certain angle and distance to form a liquid film, and then break into a large number of liquid filaments and droplets. However, the size, distance and injection angle of the atomization hole in the atomization process are important factors affecting the atomization quality. The parameters that quantitatively characterize the performance of impact atomization include: liquid film size, liquid film rupture length, liquid film thickness, atomization angle and droplet size.

[0003] The existing atomization test benches generally use high-speed cameras to shoot the atomization quality of gel propellant, which cannot directly reflect the circumferential distribution of the atomized propellant and the propellant flow rate. In addition, the existing test benches basically use electromagnetic valves to control the opening and closing of the gel tube, which is prone to danger. Therefore, it is necessary to develop a safer gel atomization test bench with more comprehensive data collection, lower cost and easier operation. Summary of the invention

[0004] In order to solve the problems of low safety, incomplete data collection and inconvenient operation of the above-mentioned atomization test bench, the present invention provides a gel propellant atomization test device.

[0005] The gel propellant atomization test device of the present invention comprises: a test table, a gel propellant supply part, a flow test part, an atomization part and a propellant circumferential collection part; The gel propellant supply unit includes a gel storage tank and a storage tank rack. The bottom of the storage tank rack is fixed on the test table, and the gel storage tank is fixed on the upper end. The top of the gel storage tank is provided with a storage tank plug and a storage tank pressure sensor. The top of the gel storage tank is connected to the gas pipe through a gas circuit one-way valve, and the bottom of the gel storage tank is connected to one end of the gel tube through the gel one-way valve. The other end of the gel tube is connected to the Y-type adapter through a gel pneumatic valve. The flow test part includes two flow meter racks and two Coriolis flow meters respectively fixed on the two flow meter racks. The bottoms of the two flow meter racks are fixed on the test table and have extensions extending from the test table. The Y-type adapters are respectively connected to the lower end inlets of the two Coriolis flow meters through connecting hoses. The atomizing part comprises a track mounted on the extending part, two sliders slidably connected to the track, two rotating table mounting blocks respectively mounted on the two sliders, two rotating tables respectively mounted on the two rotating table mounting blocks, and two injection pipes respectively mounted on the two rotating tables, each injection pipe is connected to an injection needle at the lower end, and is connected to a three-way adapter at the upper end, one of the other two channel ports of each three-way adapter is connected to an injection pressure sensor, and the other channel port is connected to the upper end outlet of the Coriolis flowmeter through a connecting hose; the rotating axes of the two rotating tables are horizontal and parallel, and after the rotating tables rotate, the injection needle is driven to rotate and the angle between the two injection needles is changed; The propellant circumferential collecting part comprises a collecting disc groove and a plurality of collecting discs placed in the collecting disc groove. The propellant circumferential collecting part is located below the injection needle and is used to collect the propellant dropped from the injection needle.

[0006] Furthermore, an L-shaped tube is connected between the gel storage tank and the gas circuit one-way valve, one end of the gas tube away from the gas circuit one-way valve is connected to one end of the gas circuit solenoid valve, and the other end of the gas circuit solenoid valve is connected to the air inlet pipe.

[0007] Furthermore, the gel pneumatic valve is in the shape of a three-way joint, the upper port is connected to the gel tube, one side port of the horizontal straight pipe part is connected to the Y-type adapter through the air valve adapter, and the other side port is used to connect the high-pressure air pipe. A piston is installed inside the horizontal straight pipe part, the large head of the piston is away from the air valve adapter, the small head of the piston is close to the air valve adapter, a round hole is set in the center of the small head of the piston, and a rubber piston plug is installed with an interference fit. After the gel pneumatic valve is ventilated, the piston moves to the right to block the gel passage. After the air supply is stopped, due to the pressure in the storage tank, the piston is squeezed to the left and the gel passage is opened.

[0008] Furthermore, the flow meter frame includes a mounting plate and an L-shaped rod connected by a horizontal rod and a vertical rod, the horizontal rod of the L-shaped rod is fixed on the mounting plate, and the Coriolis flow meter is installed on the vertical rod; the mounting plate is fixed on the test table, and the extended part of the flow meter frame is the part of the mounting plate located outside the test table. The Coriolis flow meter is placed vertically, and the gel propellant enters from the lower inlet and flows out from the upper inlet. During the measurement process, the liquid inside the flow meter can be ensured to be filled and the measurement is accurate.

[0009] Furthermore, the rotating table mounting block is a right-angle plate formed by connecting a horizontal plate and a vertical plate; one of the rotating tables is connected to the injection pipe through the angle table mounting block, the angle table and the first pipe clamp, the injection pipe is installed on the first pipe clamp, the first pipe clamp is installed on the angle table, the angle table is installed on the angle table mounting block, and the angle table mounting block is installed on the rotating table; the other rotating table is connected to the injection pipe through the cushion block and the second pipe clamp, the injection pipe is installed on the second pipe clamp, the second pipe clamp is installed on the cushion block, and the cushion block is installed on the rotating table. In the experiment, the rotating table can be used to adjust the angle between the two injection needles, thereby changing the atomization angle of the gel propellant. The angle table installed on one side can adjust the pitch angle of the injection needle to ensure that the two gel liquid columns can collide with each other.

[0010] Furthermore, the track includes a base and a cylindrical guide rail fixed on the base, the base spans over two mounting plates and is fixed, and the slider has a slide groove used in conjunction with the guide rail and is limited to slide on the guide rail. By moving the slider, the distance between the two injection needle pinholes can be changed, thereby changing the atomization distance of the gel in the experiment.

[0011] Furthermore, the collecting disc groove is a disc, and there are 12 collecting discs with the same shape. After the test, the circumferential distribution of the gel propellant atomization can be obtained by measuring the mass of the propellant in the 12 collecting discs.

[0012] Beneficial effects: The present invention utilizes impact atomization to conduct gel atomization test, and uses a Coriolis flowmeter to implement flow test of solid propellant, thereby collecting the flow of gel during gel atomization, and can more conveniently and accurately calculate the gel propellant outlet velocity and supply rate; a gel pneumatic valve is used to realize the on-off of gel propellant supply, so that the gel propellant is kept away from electronic control products, making the gel test bench safer and more reliable; a propellant circumferential collection part is used to realize the collection of circumferential distribution of gel after atomization, and the atomization effect of gel propellant is further studied, providing a new reference basis for the actual atomization state of gel propellant inside the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the gel propellant atomization test device of the present invention; Figure 2 is a schematic diagram of the three-dimensional structure of the gel propellant supply unit of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the flow test part in the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the atomization part in the present invention; Figure 5 is a top view of the gel pneumatic valve of the present invention; Figure 6 yes Figure 5 AA cross-sectional view of the gel pneumatic valve; Figure 7 It is a schematic diagram of the three-dimensional structure of the circumferential collecting portion of the propellant in the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the rotating table mounting block in the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of the corner table mounting block in the present invention; Fig.10 It is a three-dimensional structural schematic diagram of the cushion block in the present invention; In the figure: 10, test table; 20, gel propellant supply unit; 201, support frame; 202, tank base; 203, first clamp; 204, gel tank; 205, tank plug; 206, tank pressure sensor; 207, L-shaped pipe; 208, gas circuit check valve; 209, gas pipe; 210, gas circuit solenoid valve; 211, air inlet pipe; 212, gel check valve; 213, gel pipe; 214, gel pneumatic valve; 215, Y-type adapter; 216, gas valve adapter; 217, piston; 218, piston plug; 30, flow test unit; 301, mounting plate; 302, cross bar; 303, vertical bar; 304, Coriolis flowmeter; 305, second clamp; 40, atomization unit; 401, base; 4 02. Guide rail; 403. First slider; 404. First rotating table mounting block; 405. First rotating table; 406. Angle table mounting block; 407. Angle table; 408. First transverse U-shaped seat; 409. First clamping block; 410. First injection pipe; 411. First injection needle; 412. First adapter; 413. First injection pressure sensor; 414. Second slider; 415. Second rotating table mounting block; 416. Second rotating table; 417. Pad; 418. Second transverse U-shaped seat; 419. Second clamping block; 420. Second injection pipe; 421. Second injection needle; 422. Second adapter; 423. Second injection pressure sensor; 50. Propellant circumferential collection portion; 501. Collection tray groove; 502. Collection tray. DETAILED DESCRIPTION

[0014] The present invention will now be further described in detail by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the embodiments.

[0015] like Figure 1 As shown, the present invention is a gel propellant atomization test device, which includes: a test table 10, a gel propellant supply unit 20, a flow test unit 30, an atomization unit 40 and a propellant circumferential collection unit 50.

[0016] The gel propellant supply unit 20 is as follows: Figure 2As shown, it includes a gel tank 204 and a tank rack, the tank rack includes a support frame 201 and a tank base 202 welded on the support frame 201 for holding the gel tank 204, the bottom of the support frame 201 is fixed to the test table 10 by screws, and a first clamp 203 is connected to the support frame 201 to clamp and fix the gel tank 204. Three threaded holes are provided on the top of the gel storage tank 204, and the three threaded holes are respectively threadedly connected with a tank plug 205, from which gel propellant, a tank pressure sensor 206, and an L-shaped tube 207 can be added, and gel propellant can be added from the tank plug 205. One end of the L-shaped tube 207 away from the gel storage tank 204 is connected to one end of an air circuit one-way valve 208, and the other end of the air circuit one-way valve 208 is connected to one end of a gas pipe 209, and the other end of the gas pipe 209 is connected to one end of an air circuit solenoid valve 210, and the other end of the air circuit solenoid valve 210 is connected to an air inlet pipe 211, and the air inlet pipe 211 is used to connect a high-pressure gas cylinder to obtain high-pressure gas as the power for atomization of the gel propellant. A threaded hole is provided at the bottom of the gel storage tank 204, and is threadedly connected to the gel one-way valve 212 to ensure safety. One end of the gel one-way valve 212 away from the gel storage tank 204 is connected to one end of the gel tube 213, and the other end of the gel tube 213 is connected to one end of the gel pneumatic valve 214. The other end of the gel pneumatic valve 214 is connected to one end of the air valve adapter 216. The other end of the air valve adapter 216 is connected to the Y-type adapter 215. The Y-type adapter 215 divides the gel propellant into two.

[0017] Specifically, if Figure 5 , Figure 6 As shown, the gel pneumatic valve 214 is in the shape of a three-way joint, the upper port is connected to the gel tube 213, one side port of the horizontal straight tube part is connected to the air valve adapter 216, and the other side port is used to connect the high-pressure air pipe; a piston 217 is installed inside the horizontal straight tube part, the large head of the piston 217 is away from the air valve adapter 216, the small head of the piston 217 is close to the air valve adapter 216, a round hole is set in the center of the small head of the piston 217, and a piston plug 218 made of rubber material is installed in an interference fit. When the gel pneumatic valve 214 is passed through the high-pressure air pipe, the piston 217 is pushed to the side of the air valve adapter 216, and the piston plug 218 blocks the passage in the air valve adapter 216. After the pressure is released, the pressure of the gel will press the piston 217 back to the left, and the internal passage of the air valve adapter 216 will open.

[0018] The flow rate testing unit 30 is as follows Figure 3As shown, it includes two flow meter racks and two Coriolis flow meters 304 respectively fixed on the two flow meter racks. The flow meter rack includes a mounting plate 301 and an L-shaped rod connected by a cross bar 302 and a vertical rod 303. The cross bar 302 of the L-shaped rod is fastened to the mounting plate 301 by screws (for example, the cross bar 302 is fastened by using screws to pass through the through holes preset on the cross bar 302 and screwed into the screw holes preset on the mounting plate 301. In the following, when screws are used for fastening, the fastening method is a conventional method similar to this); the Coriolis flow meter 304 is installed on the vertical rod 303, specifically, a second clamp 305 is installed on each vertical rod 303 to clamp the Coriolis flow meter 304, and the second clamp 305 is two and distributed up and down; the mounting plate 301 is fastened to the test table 10 by screws, and one end of the mounting plate 301 extends out of the test table 10 as an extension. The Y-type adapter 215 is connected to the lower inlet of the two Coriolis flowmeters 304 through connecting hoses. The Coriolis flowmeter 304 is a commercially available product, for example, a DN20 model Coriolis flowmeter manufactured by Shanghai Jishen Instrument Co., Ltd. is used.

[0019] The atomizing unit 40 is as follows Figure 4As shown, it includes a track installed on the above-mentioned extension part, two sliders slidably connected to the track, namely a first slider 403 and a second slider 414, a first rotating table mounting block 404 installed on the first slider 403, a first rotating table 405 installed on the first rotating table mounting block 404, an angle table mounting block 406 installed on the first rotating table 405, an angle table 407 installed on the angle table mounting block 406, a first pipe clamp installed on the angle table 407, a first injection pipe 410 clamped by the first pipe clamp, and a second rotating table mounting block 415 installed on the second slider 414, and a first rotating table mounting block 406 installed on the first rotating table 405. 15, a second rotating platform 416 mounted on the second rotating platform 416, a cushion block 417 mounted on the cushion block 417, a second pipe clamp mounted on the cushion block 417, and a second injection pipe 420 clamped by the second pipe clamp, the lower end of the first injection pipe 410 is connected to the first injection needle 411, and the upper end is connected to the first adapter 412 (i.e., a three-way adapter), the lower end of the second injection pipe 420 is connected to the second injection needle 421, and the upper end is connected to the second adapter 422 (i.e., a three-way adapter), one of the other two channel ports of each three-way adapter is connected to an injection pressure sensor, and the other channel port is connected to the upper outlet of the Coriolis flowmeter 304 through a connecting hose. The injection pressure sensor connected to the first adapter 412 is the first injection pressure sensor 413, and the injection pressure sensor connected to the second adapter 422 is the second injection pressure sensor 423, and each injection pressure sensor is used to measure the pressure of the propellant before it is ejected from the nozzle. The first slider 403 and the second slider 414 have the same structure, the first rotating table mounting block 404 and the second rotating table mounting block 415 have the same structure, the first rotating table 405 and the second rotating table 416 have the same structure, the first tube clamp and the second tube clamp have the same structure, the first injection pipe 410 and the second injection pipe 420 have the same structure for ejecting high-speed gel propellant jets, the first injection needle 411 and the second injection needle 421 have the same structure, and the first adapter 412 and the second adapter 422 have the same structure.

[0020] Specifically, the track includes a base 401 and a cylindrical guide rail 402 fixed on the base 401. The base 401 spans over the protruding parts of the two mounting plates 301 and is fastened with screws. The slider is a rectangular parallelepiped as a whole, and a circular arc surface groove (such as Figure 4 As shown in FIG. 4 ), the guide rail 402 is inserted into the slide groove so that the slider can be limited to slide on the guide rail 402. Each of the above-mentioned rotating table mounting blocks is a right-angle plate formed by connecting a horizontal plate and a vertical plate (such as Figure 8 As shown in FIG. 4 ), the two inner surfaces of the right angle plate are respectively attached to the two surfaces of the slider and fastened with screws. The rotating table is fastened to the two outer surfaces of the right angle plate by screws. The corner table mounting block 406 is preset with five stepped holes (such as Fig. 9406 and the first rotating platform 405 are fixed by screws. The angular platform 407 and the angular platform mounting block 406 are fixed by welding. The first pipe clamp includes a first transverse U-shaped seat 408 and two first clamping blocks 409. Both ends of the first transverse U-shaped seat 408 are provided with semicircular grooves extending through from top to bottom, and the grooves are open at the end surface, and the two grooves are distributed one above and one below. The end surface of the first transverse U-shaped seat 408 is provided with a screw hole, and the two first clamping blocks 409 are also provided with the same semicircular grooves. The two first clamping blocks 409 are also provided with through holes corresponding to the screw holes on the first transverse U-shaped seat 408; the first injection pipe 410 is placed in the upper and lower grooves of the first transverse U-shaped seat 408, and then the two first clamping blocks 409 are respectively matched with the two grooves of the first transverse U-shaped seat 408, and screws are used to pass through the through holes on the first clamping blocks 409 and screwed into the screw holes on the first transverse U-shaped seat 408 for tightening, so that the first injection pipe 410 can be clamped and kept vertical (such as Figure 4 The first pipe clamp is fastened by using a screw to pass through a through hole preset on the first transverse U-shaped seat 408 and screw into a screw hole preset on the angle platform 407. The pad 417 is provided with four stepped holes (as shown in FIG. Fig.10 As shown in the figure, the first pipe clamp 410 and the second pipe clamp 416 are fastened with screws. Since the first pipe clamp and the second pipe clamp have the same structure, the second pipe clamp includes a second transverse U-shaped seat 418 and two second clamping blocks 419. The second pipe clamp is fastened by passing a screw through a through hole preset on the second transverse U-shaped seat 418 and screwing into a screw hole preset on the cushion block 417. Each injection pipe is threadedly connected to the injection needle, the first injection pipe 410 and the first adapter 412, the second injection pipe 420 and the second adapter 422 are threadedly connected, and the first adapter 412, the second adapter 422 and their respective injection pressure sensors are threadedly connected.

[0021] The rotating shafts of the two rotating tables are horizontal and parallel. After the rotating tables rotate, the injection needles are driven to rotate and the angle between the two injection needles is changed, that is, the rotation of the two injection needles is roughly on the same vertical plane, that is, each rotating table is used to adjust the injection distance and injection angle of the gel propellant atomization. The above-mentioned angle table 407 can adjust the pitch angle of the first injection needle 411 on the first rotating table 405. The above-mentioned angle table 407 and each rotating table are all commercially available products. For example, the rotating table is an MTS-DX60 model rotating table manufactured by Anying Instruments, and the angle table uses an SJ120-30 angle table manufactured by Lianying.

[0022] The propellant circumferential collecting portion 50 is as follows: Figure 7As shown, it includes a collecting plate groove 501 and a plurality of collecting plates 502 placed in the collecting plate groove, and the propellant circumferential collecting part 50 is placed on the ground below the injection needle to collect the propellant falling from the injection needle. The collecting plate groove 501 is a circular plate, and there are 12 collecting plates 502 with the same shape, and each collecting plate 502 occupies one twelfth of the entire collecting plate groove 501. Specifically, the center of the propellant circumferential collecting part 50 is placed at the projection of the midpoint of the vertical line connecting the two injection needles on the ground, so that the circumferential mass distribution of the gel propellant after atomization can be uniformly sampled circumferentially.

[0023] The above-mentioned technologies not specifically mentioned are all referred to the prior art.

[0024] Based on the above-mentioned ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above-mentioned description. The technical scope of the present invention is not limited to the contents of the specification.

Claims

1. A gel propellant atomization test device, characterized in that: include: A test table (10), a gel propellant supply unit (20), a flow rate test unit (30), an atomization unit (40), and a propellant circumferential collection unit (50); The gel propellant supply unit (20) comprises a gel storage tank (204) and a storage tank rack. The bottom of the storage tank rack is fixed on the test table (10), and the upper end is fixed with the gel storage tank (204). The top of the gel storage tank (204) is provided with a storage tank plug (205) and a storage tank pressure sensor (206). The top of the gel storage tank (204) is connected to a gas pipe (209) via a gas path one-way valve (208). The bottom of the gel storage tank (204) is connected to one end of a gel tube (213) via a gel one-way valve (212). The other end of the gel tube (213) is connected to a Y-type adapter (215) via a gel pneumatic valve (214). The flow test section (30) comprises two flow meter racks and two Coriolis flow meters (304) respectively fixed on the two flow meter racks. The bottoms of the two flow meter racks are fixed on the test table (10) and have protruding portions extending from the test table (10). The Y-type adapter (215) is respectively connected to the lower inlets of the two Coriolis flow meters (304) through connecting hoses. The atomizing section (40) comprises a track mounted on the extending portion, two sliders slidably connected to the track, two rotating table mounting blocks respectively mounted on the two sliders, two rotating tables respectively mounted on the two rotating table mounting blocks, and two injection pipes respectively mounted on the two rotating tables, wherein the lower end of each injection pipe is connected to an injection needle, and the upper end is connected to a three-way adapter, one of the other two channel openings of each three-way adapter is connected to an injection pressure sensor, and the other channel opening is connected to the upper end outlet of the Coriolis flowmeter (304) through a connecting hose; the rotating axes of the two rotating tables are horizontal and parallel, and after the rotating tables rotate, the injection needle is driven to rotate, and the angle between the two injection needles is changed; The propellant circumferential collection portion (50) comprises a collection plate groove (501) and a plurality of collection plates (502) placed in the collection plate groove. The propellant circumferential collection portion (50) is located below the injection needle and is used to collect the propellant dropped from the injection needle.

2. The gel propellant atomization test device according to claim 1, characterized in that: An L-shaped tube (207) is connected between the gel storage tank (204) and the gas circuit one-way valve (208); one end of the gas tube (209) away from the gas circuit one-way valve (208) is connected to one end of the gas circuit solenoid valve (210); and the other end of the gas circuit solenoid valve (210) is connected to an air inlet pipe (211).

3. The gel propellant atomization test device according to claim 2, characterized in that: The gel pneumatic valve (214) is in the shape of a three-way joint, the upper port is connected to the gel tube (213), one side port of the horizontal straight tube portion is connected to the Y-type adapter (215) via the air valve adapter (216), and the other side port is used to connect to the high-pressure air pipe. A piston (217) is installed inside the horizontal straight tube portion, the large head of the piston (217) is away from the air valve adapter (216), and the small head of the piston (217) is close to the air valve adapter (216). A round hole is arranged at the center of the small head of the piston (217), and a piston plug (218) made of rubber material is installed in an interference fit.

4. The gel propellant atomization test device according to claim 3, characterized in that: The flow meter rack comprises a mounting plate (301) and an L-shaped rod formed by a crossbar (302) and a vertical rod (303); the crossbar (302) of the L-shaped rod is fixed on the mounting plate (301), and the Coriolis flow meter (304) is mounted on the vertical rod (303); the mounting plate (301) is fixed on the test table (10), and the extended portion of the flow meter rack is the portion of the mounting plate (301) located outside the test table (10).

5. The gel propellant atomization test device according to claim 4, characterized in that: The rotating platform mounting block is a right-angle plate formed by connecting a horizontal plate and a vertical plate; one of the rotating platforms is connected to the injection pipe via the angle platform mounting block (406), the angle platform (407) and the first pipe clamp, the injection pipe is mounted on the first pipe clamp, the first pipe clamp is mounted on the angle platform (407), the angle platform (407) is mounted on the angle platform mounting block (406), and the angle platform mounting block (406) is mounted on the rotating platform; the other rotating platform is connected to the injection pipe via the cushion block (417) and the second pipe clamp, the injection pipe is mounted on the second pipe clamp, the second pipe clamp is mounted on the cushion block (417), and the cushion block (417) is mounted on the rotating platform.

6. The gel propellant atomization test device according to claim 5, characterized in that: The track comprises a base (401) and a cylindrical guide rail (402) fixed on the base (401); the base (401) spans over and is fixed on two mounting plates (301); and the slide block has a slide groove used in conjunction with the guide rail (402) and is limited to slide on the guide rail (402).

7. The gel propellant atomization test device according to claim 6, characterized in that: The collecting tray slot (501) is a circular tray, and there are 12 collecting trays (502) of the same shape.

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