Krypton propellant characteristic testing device

Abstract

The utility model relates to the technical field of krypton gas characteristic test, and discloses a krypton gas propellant characteristic test device which comprises a test bed and a krypton gas tank, one end of a gas outlet pipe is fixedly connected with a three-way valve, one side of the three-way valve is fixedly connected with a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is fixedly connected with a cooling box, and the other end of the first connecting pipe is fixedly connected with a second connecting pipe. A first switch valve is arranged between the first connecting pipe and the cooling box, one end of the second connecting pipe is fixedly connected with a heating box, a second switch valve is arranged between the second connecting pipe and the heating box, the threaded rod is driven by the hand wheel to rotate, and the threaded rod drives the movable cylinder to move; when the krypton gas is cooled, the connector of the first connecting pipe is closed, then the krypton gas enters the heating box through the second connecting pipe to be heated, and then the heated krypton gas enters the cooling box through the third connecting pipe to be cooled, so that the propellant characteristic that the krypton gas is rapidly cooled after high temperature is tested.

Description

Technical Field

[0001] This utility model relates to the field of krypton property testing technology, specifically a krypton propellant property testing device. Background Technology

[0002] Krypton (Kr) is a rare gas with extremely stable chemical properties. It is colorless, odorless, and non-toxic. Krypton is present in small amounts in nature, mainly concentrated in the atmosphere, accounting for about 1.1 ppm (parts per million) of the atmospheric volume. The physical properties of krypton include: a melting point of -156.6℃, a boiling point of -153.35℃, and a density approximately 3.736 times that of air. It is non-flammable and does not support combustion. It can absorb X-rays and has characteristics such as high density, low thermal conductivity, and high transmittance.

[0003] The krypton propellant characteristic testing device is an experimental apparatus specifically designed to study the various physical and chemical properties of krypton as a propellant. It can simulate different working environments, such as different pressures, temperatures, and flow rates, to accurately obtain the performance parameters of krypton during the propulsion process, much like a "laboratory" specially built for krypton.

[0004] Regarding the existing related technologies, the inventors believe that the following defects exist: When the existing technologies test the propellant properties of krypton, they generally only conduct single-item heating or cooling tests on krypton, thus failing to understand the propellant properties of krypton under certain conditions such as rapid cooling after high temperature. Utility Model Content

[0005] To address the technical problem that existing tests only involve heating or cooling krypton, thus failing to understand the propellant properties of krypton under conditions such as rapid cooling after high temperature, this invention provides a krypton propellant property testing device.

[0006] This utility model is achieved using the following technical solution: a krypton propellant characteristic testing device, comprising a test bench and a krypton tank. Multiple columns are fixedly connected to the bottom of the test bench. An outlet pipe is fixedly connected to the top of the krypton tank. A pressure pump is installed in the middle of the outlet pipe. A three-way valve is fixedly connected to one end of the outlet pipe. A first connecting pipe and a second connecting pipe are fixedly connected to one side of the three-way valve. A cooling box is fixedly connected to one end of the first connecting pipe. A first switching valve is installed between the first connecting pipe and the cooling box. A heating box is fixedly connected to one end of the second connecting pipe. A second switching valve is installed between the second connecting pipe and the heating box. A third connecting pipe connects the cooling box and the heating box. A third switching valve is installed at the end of the third connecting pipe near the cooling box. A fourth switching valve is installed at the end of the third connecting pipe near the heating box.

[0007] Preferably, the three-way valve includes a fixed cylinder and a movable cylinder, the movable cylinder being movably connected inside the fixed cylinder, a handwheel being provided at one end of the outside of the fixed cylinder, a threaded rod being fixedly connected to one end of the handwheel, and one end of the threaded rod being rotatably connected inside one end of the movable cylinder.

[0008] Preferably, an air outlet is provided on one side of the movable cylinder, and the interior of the movable cylinder is connected to the first connecting pipe and the second connecting pipe through the air outlet.

[0009] Preferably, the top of the movable cylinder is fixedly connected with a retaining strip, and the top of the inner wall of the fixed cylinder is machined with a retaining groove, and the retaining strip is slidably connected inside the retaining groove.

[0010] Preferably, the first switching valve includes an inner cylinder and a sleeve, the inner cylinder is movably connected inside the sleeve, the top of the inner cylinder is fixedly connected to a connecting shaft, and the top of the connecting shaft is fixedly connected to a rotating wheel.

[0011] Preferably, the inner cylinder has a first through hole at both ends, and the sleeve has a second through hole at both ends, with the first through hole and the second through hole having the same inner diameter.

[0012] Preferably, a first observation window is provided on one side of the cooling box, and a first inner cavity is opened inside the cooling box, with a condenser tube disposed inside the first inner cavity.

[0013] Preferably, a second observation window is provided on one side of the heating box, and a second inner cavity is opened inside the heating box, with a heating wire disposed inside the second inner cavity.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In use, this invention involves starting a pressure pump to allow krypton gas inside the krypton tank to pass through an outlet pipe to a three-way valve. From there, the gas enters the first and second connecting pipes respectively. Then, the first and second switching valves are opened, allowing the krypton gas to enter the cooling and heating chambers respectively. The cooling chamber cools the krypton gas, while the heating chamber heats it. This allows for the detection and recording of the krypton gas propulsion characteristics under different temperature conditions.

[0016] In use, the screw rod is rotated by the handwheel, which in turn drives the movable cylinder. When the outlet coincides with the connection port of the second connecting pipe, the connection port of the first connecting pipe will be closed, and the krypton will enter the heating chamber through the second connecting pipe for heating. Then, the fourth switch valve is opened, allowing the heated krypton to enter the cooling chamber through the third connecting pipe for cooling. This allows the propellant characteristics of krypton to be tested by rapidly cooling down after reaching a high temperature. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the three-way valve of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the switching valve of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the cooling box of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the heating box of this utility model.

[0022] In the diagram: 1. Test bench; 2. Krypton tank; 3. Column; 4. Gas outlet pipe; 5. Pressure pump; 6. Three-way valve; 7. First connecting pipe; 8. Second connecting pipe; 9. First switching valve; 10. Second switching valve; 11. Cooling box; 1101. First observation window; 1102. First inner cavity; 12. Heating box; 1201. Second observation window; 1202. Second inner cavity; 13. Third switching valve; 14. Fourth switching valve; 15. Third connecting pipe; 16. Fixed cylinder; 17. Movable cylinder; 18. Handwheel; 19. Threaded rod; 20. Gas outlet; 21. Clamping strip; 22. Clamping groove; 23. Rotary wheel; 24. Connecting shaft; 25. Inner cylinder; 26. Sleeve; 27. First through hole; 28. Second through hole; 29. ​​Condenser pipe; 30. Heating wire. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1:

[0025] Please see Figure 1 - Figure 5This embodiment of a krypton propellant characteristic testing device includes a test bench 1 and a krypton tank 2. Multiple columns 3 are fixedly connected to the bottom of the test bench 1. An outlet pipe 4 is fixedly connected to the top of the krypton tank 2. A pressure pump 5 is installed in the middle of the outlet pipe 4. A three-way valve 6 is fixedly connected to one end of the outlet pipe 4. A first connecting pipe 7 and a second connecting pipe 8 are fixedly connected to one side of the three-way valve 6. A cooling box 11 is fixedly connected to one end of the first connecting pipe 7. A first switching valve 9 is installed between the first connecting pipe 7 and the cooling box 11. A heating box 12 is fixedly connected to one end of the second connecting pipe 8. A second switching valve 10 is installed between the second connecting pipe 8 and the heating box 12. A third connecting pipe 15 is connected between the cooling box 11 and the heating box 12. A third switching valve 13 is installed at the end of the third connecting pipe 15 near the cooling box 11. A fourth switching valve 14 is installed at the end of the third connecting pipe 15 near the heating box 12.

[0026] When it is necessary to study the propulsion characteristics of krypton at different temperatures, the pressure pump 5 is started, so that the krypton inside the krypton tank 2 passes through the outlet pipe 4 to the inside of the three-way valve 6, and then enters the inside of the first connecting pipe 7 and the second connecting pipe 8 through the three-way valve 6 respectively. Then, the first switch valve 9 and the second switch valve 10 are opened respectively, so that the krypton enters the inside of the cooling box 11 and the heating box 12 respectively. The krypton is cooled by the cooling box 11, so that the physicochemical changes of krypton under different low temperature conditions are detected and recorded. The krypton is heated by the heating box 12, so that the physicochemical changes of krypton under different high temperature conditions are detected and recorded.

[0027] Furthermore, the three-way valve 6 includes a fixed cylinder 16 and a movable cylinder 17. The movable cylinder 17 is movably connected to the inside of the fixed cylinder 16. A handwheel 18 is provided at one end of the outside of the fixed cylinder 16. A threaded rod 19 is fixedly connected to one end of the handwheel 18. One end of the threaded rod 19 is rotatably connected to the inside of one end of the movable cylinder 17. An air outlet 20 is provided on one side of the movable cylinder 17. The inside of the movable cylinder 17 is connected to the first connecting pipe 7 and the second connecting pipe 8 through the air outlet 20.

[0028] When it is necessary to test the propulsion characteristics of krypton gas rapidly cooling down at high temperatures, turn the handwheel 18. The handwheel 18 will drive the threaded rod 19 to rotate, and the threaded rod 19 will drive the movable cylinder 17 to move. The movable cylinder 17 will drive the gas outlet 20 to move closer to the connection port of the second connecting pipe 8. When the gas outlet 20 coincides with the connection port of the second connecting pipe 8, the connection port of the first connecting pipe 7 will be closed. The krypton gas will enter the heating chamber 12 for heating through the second connecting pipe 8. Then, open the fourth switch valve 14 so that the heated krypton gas enters the cooling chamber 11 for cooling through the third connecting pipe 15. This allows the physicochemical changes of krypton gas after rapid cooling after heating to be detected and recorded.

[0029] Secondly, when it is necessary to test the propulsion characteristics of krypton gas rapidly heating up after low temperature, turn the handwheel 18 to make the outlet 20 coincide with the connection port of the first connecting pipe 7 and connect them. The connection port of the second connecting pipe 8 will be closed, so that the krypton gas first passes through the cooling box 11 and then enters the interior of the heating box 12.

[0030] Furthermore, a retaining strip 21 is fixedly connected to the top of the movable cylinder 17, and a retaining groove 22 is machined on the top of the inner wall of the fixed cylinder 16. The retaining strip 21 is slidably connected inside the retaining groove 22. When the threaded rod 19 rotates and drives the movable cylinder 17 to move, the movable cylinder 17 will drive the retaining strip 21 to move. The retaining strip 21 will move along the inside of the retaining groove 22. By setting the retaining strip 21, the movement of the movable cylinder 17 is limited by the retaining strip 21, so as to prevent the movable cylinder 17 from rotating.

[0031] Furthermore, the first switching valve 9 includes an inner cylinder 25 and a sleeve 26. The inner cylinder 25 is movably connected inside the sleeve 26. A connecting shaft 24 is fixedly connected to the top of the inner cylinder 25. A rotating wheel 23 is fixedly connected to the top of the connecting shaft 24. A first through hole 27 is opened at both ends of the inner cylinder 25, and a second through hole 28 is opened at both ends of the sleeve 26. The inner diameters of the first through hole 27 and the second through hole 28 are the same.

[0032] When the switch valve needs to be opened, the rotating wheel 23 is rotated, which will drive the connecting shaft 24 to rotate. The connecting shaft 24 will drive the inner cylinder 25 to rotate, so that the first through hole 27 and the second through hole 28 coincide, thereby opening the switch valve. At the same time, by adjusting the opening size of the first through hole 27 and the second through hole 28, the output of krypton can be controlled.

[0033] Furthermore, a first observation window 1101 is provided on one side of the cooling box 11, and a first inner cavity 1102 is opened inside the cooling box 11. A condenser tube 29 is provided inside the first inner cavity 1102. A second observation window 1201 is provided on one side of the heating box 12, and a second inner cavity 1202 is opened inside the heating box 12. A heating wire 30 is provided inside the second inner cavity 1202.

[0034] The first observation window 1101 and the second observation window 1201 are provided to observe the state inside the cooling box 11 and the heating box 12. The observation windows of the first observation window 1101 and the second observation window 1201 are usually made of materials that are resistant to high temperature and high pressure and have good optical properties. The first inner cavity 1102 is provided to achieve cooling and temperature reduction through the existing refrigeration system evaporator, compressor and wire tube condenser. The second inner cavity 1202 is provided to heat the krypton gas inside the heating box 12 by connecting the power supply.

[0035] Working principle: By starting the pressure pump 5, the krypton gas inside the krypton tank 2 passes through the outlet pipe 4 to the three-way valve 6, and then enters the first connecting pipe 7 and the second connecting pipe 8 through the three-way valve 6 respectively. Then, the first switch valve 9 and the second switch valve 10 are opened respectively, so that the krypton gas enters the cooling box 11 and the heating box 12 respectively. The krypton gas is cooled by the cooling box 11 and heated by the heating box 12, so that the propulsion characteristics of the krypton gas under different temperature conditions are detected and recorded respectively.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A krypton propellant characteristic testing apparatus, comprising a test bench (1) and a krypton tank (2), characterized in that, The test bench (1) has multiple columns (3) fixedly connected around its bottom. The top of the krypton tank (2) is fixedly connected to an outlet pipe (4). A pressure pump (5) is installed in the middle of the outlet pipe (4). A three-way valve (6) is fixedly connected to one end of the outlet pipe (4). A first connecting pipe (7) and a second connecting pipe (8) are fixedly connected to one side of the three-way valve (6). A cooling box (11) is fixedly connected to one end of the first connecting pipe (7). The first connecting pipe (7) and the cooling box (11) are connected to each other. A first switching valve (9) is provided between the two. One end of the second connecting pipe (8) is fixedly connected to the heating box (12). A second switching valve (10) is provided between the second connecting pipe (8) and the heating box (12). A third connecting pipe (15) is connected between the cooling box (11) and the heating box (12). A third switching valve (13) is provided at the end of the third connecting pipe (15) near the cooling box (11). A fourth switching valve (14) is provided at the end of the third connecting pipe (15) near the heating box (12).

2. The krypton propellant characteristic testing device according to claim 1, characterized in that, The three-way valve (6) includes a fixed cylinder (16) and a movable cylinder (17). The movable cylinder (17) is movably connected inside the fixed cylinder (16). A handwheel (18) is provided at one end of the fixed cylinder (16). A threaded rod (19) is fixedly connected to one end of the handwheel (18). One end of the threaded rod (19) is rotatably connected to one end of the movable cylinder (17).

3. The krypton propellant characteristic testing device according to claim 2, characterized in that, An air outlet (20) is provided on one side of the movable cylinder (17), and the interior of the movable cylinder (17) is connected to the first connecting pipe (7) and the second connecting pipe (8) through the air outlet (20).

4. The krypton propellant characteristic testing device according to claim 2, characterized in that, The top of the movable cylinder (17) is fixedly connected with a retaining strip (21), and the top of the inner wall of the fixed cylinder (16) is machined with a retaining groove (22), and the retaining strip (21) is slidably connected inside the retaining groove (22).

5. The krypton propellant characteristic testing apparatus according to claim 1, characterized in that, The first switching valve (9) includes an inner cylinder (25) and a sleeve (26). The inner cylinder (25) is movably connected inside the sleeve (26). A connecting shaft (24) is fixedly connected to the top of the inner cylinder (25), and a rotating wheel (23) is fixedly connected to the top of the connecting shaft (24).

6. The krypton propellant characteristic testing apparatus according to claim 5, characterized in that, The inner cylinder (25) has a first through hole (27) at both ends, and the sleeve (26) has a second through hole (28) at both ends. The inner diameters of the first through hole (27) and the second through hole (28) are the same.

7. The krypton propellant characteristic testing apparatus according to claim 1, characterized in that, The cooling box (11) has a first observation window (1101) on one side, and a first inner cavity (1102) is opened inside the cooling box (11), and a condenser tube (29) is arranged inside the first inner cavity (1102).

8. The krypton propellant characteristic testing apparatus according to claim 1, characterized in that, A second observation window (1201) is provided on one side of the heating box (12), and a second inner cavity (1202) is opened inside the heating box (12), and a heating wire (30) is provided inside the second inner cavity (1202).

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