A simulated fuel filling system for liquid rocket full-rocket modal test

Abstract

This application relates to a fuel loading system, and more particularly to a simulated fuel loading system for full-rocket modal testing of liquid rockets. The simulated fuel loading system for full-rocket modal testing of liquid rockets includes a transfer system, a loading system, a pressure control system, a pressurization system, a pressure measurement module, a weighing module, and a control module. The transfer system outputs simulated fuel to the loading system. The loading system receives the simulated fuel output from the transfer system and loads it to the relevant rocket tanks in a predetermined amount. The pressure control system controls the opening of the relevant simulated fuel loading ports. The pressurization system maintains the pressure values ​​in the relevant tanks. The weighing module accurately calculates the simulated fuel loading amount. The control module controls the normal operation of the transfer pump and the loading pump, as well as other related modules. This application provides a simulated fuel loading system for full-rocket modal testing of liquid rockets with high loading accuracy and reliability, ensuring the simulated fuel loading flow rate and rocket entry quality, and improving the reliability and safety of the simulated fuel loading system.

Description

Technical Field

[0001] This invention relates to a fuel loading system, and more particularly to a simulated fuel loading system for full-rocket modal testing of liquid rockets. Background Technology

[0002] Full-rocket modal testing is a mandatory pre-launch structural test of the entire rocket stage. For liquid-fueled rockets, full-rocket modal testing typically involves loading simulated fuel on-site instead of real liquid fuel. Existing simulated fuel loading systems require significant manpower. Increasing the automation level of the loading system will not only improve the safety of the loading process but also make the control of the fuel quantity more reliable. Therefore, the simulated fuel loading system in full-rocket modal testing should possess characteristics such as applicability to multiple rocket models, fast loading speed, and high safety and reliability. This will reduce the manpower costs and loading cycle of simulated fuel loading in rocket modal testing, and improve the safety of test personnel and the test rocket. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and provide a simulated fuel loading system for full-rocket modal testing of liquid rockets with high loading accuracy and high reliability, ensuring the simulated fuel loading flow rate and rocket entry quality, improving the reliability and safety of the simulated fuel loading system, and meeting the requirements of full-rocket modal testing for the simulated fuel loading system.

[0004] The technical solution of this application is:

[0005] The above-mentioned objective of the present invention is achieved through the following technical solution:

[0006] A simulated fuel loading system for full-rocket modal testing of liquid rockets includes a transfer system, a loading system, a pressure control system, a pressurization system, a pressure measurement module, a weighing module, and a control module.

[0007] Transfer system: outputs simulated fuel to the refueling system; controls the refueling flow rate to the standard refueling tank 7 to the weighing state;

[0008] The fueling system receives the simulated fuel output from the fuel transfer system and adds the simulated fuel in measured amounts to the rocket's first-stage fuel tank, first-stage oxygen tank, second-stage fuel tank, and second-stage oxygen tank.

[0009] Pressure control system: outputs control nitrogen to the rocket's first-stage fuel tank control gas interface, first-stage oxygen tank control gas interface, second-stage fuel tank control gas interface, and second-stage oxygen tank control gas interface, and controls the opening of the relevant simulated fuel filling ports;

[0010] Pressurization system: Outputs pure nitrogen to the rocket's first-stage fuel tank, first-stage oxygen tank, second-stage fuel tank, and second-stage oxygen tank to maintain the relevant tank pressure values;

[0011] Weighing module; weighs the simulated fuel in the standard filling tank 7 to accurately calculate the simulated fuel filling amount;

[0012] Control module: Displays and records the weight value of the weighing module; displays and records the filling speed and filling amount of the filling system flow meter 15; controls the operation of the transfer pump and the filling pump.

[0013] The transfer system includes a simulated fuel source 1, a transfer water pump 2, a ball valve 1 3, a transfer water tank 4, a ball valve 2 5, a ball valve 3 6, and a standard filling water tank 7.

[0014] The filling system includes a coarse filter 10, a filling water pump 11, a ball valve four 12, an overflow valve 9, a check valve 13, a drain ball valve 14, a flow meter 15, a ball valve five 16, a fine filter one 17, a ball valve six 18, a fine filter two 19, a ball valve seven 20, a fine filter three 21, a ball valve eight 22, and a fine filter four 23.

[0015] The pressurization system includes a nitrogen source 46, a pressure gauge 45, a pressure shut-off valve 12 44, a pressure reducing valve 43, a pressure gauge 5 42, a pressure shut-off valve 11 57, a pressure shut-off valve 41, a gas source filter 40, a pressure shut-off valve 39, a gas source filter 38, a pressure shut-off valve 2 37, a gas source filter 2 36, a pressure shut-off valve 1 35, and a gas source filter 1 34.

[0016] The pressure control system includes a nitrogen source 2 55, a pressure gauge 8 54, a pressure shut-off valve 9 53, a pressure reducing valve 2 52, a pressure gauge 7 51, a pressure shut-off valve 10 56, a pressure shut-off valve 8 50, a pressure shut-off valve 7 49, a pressure shut-off valve 6 48, and a pressure shut-off valve 5 47.

[0017] The pressure measurement module includes pressure gauge 1 (26), pressure sensor 1 (27), pressure gauge 2 (28), pressure sensor 2 (29), pressure gauge 3 (30), pressure sensor 3 (31), pressure gauge 4 (32), and pressure sensor 4 (33).

[0018] The weighing module includes a weighing frame 8, a first weighing sensor 24, and a second weighing sensor 25.

[0019] The control module includes a display screen and a background control system, which displays data of relevant monitoring quantities and controls the operation of relevant functional components.

[0020] Taking the refueling of a secondary oxygen tank as an example, the refueling steps include:

[0021] Step (1): The pressure control system inputs nitrogen into the control gas interface of the second-stage oxygen tank, controlling the opening of the rocket's second-stage oxygen tank filling port;

[0022] Step (2): The transfer system adds simulated fuel to the standard fuel tank 7, and the weighing module weighs and records the mass of the standard fuel tank 7 before fueling.

[0023] Step (3): The fueling system is turned on, and the simulated fuel in the standard fueling tank 7 is added to the rocket's second-stage oxygen tank. The mass of the standard fueling tank 7 after fueling is weighed and recorded. The mass of the standard fueling tank 7 after fueling minus the mass before fueling is the amount of simulated fuel added for this fueling. The above operation is repeated until the specified mass of simulated fuel is added.

[0024] Step (4): Turn on the pressurization system to output nitrogen from nitrogen source 46 to the secondary oxygen tank. During this process, monitor the pressure value in the secondary oxygen tank measured by the pressure measuring module. When the pressure value in the secondary oxygen tank reaches the set value, close the pressure shut-off valve 12 44.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The interfaces of the simulated fuel loading system of this invention all adopt standard interfaces, and the control valves are replaced according to the simulated fuel loading requirements of the rocket model. The loading system can meet the simulated fuel loading requirements of multiple rocket models;

[0027] (2) The simulated fuel loading system of the present invention can complete the loading of any fuel tank according to the requirements of the full-rocket modal test of liquid rocket;

[0028] (3) The weighing module and flow meter of the simulated fuel loading system of the present invention can accurately calculate the simulated fuel loading amount, meet the precise loading requirements of the rocket, and ensure the test state of the rocket for full-rocket modal testing;

[0029] (4) The simulated fuel refueling system of the present invention can monitor and control the fuel tank pressure in real time. The pressure sensor of the pressure measuring module can monitor the tank pressure value. The control module will display the pressure value and control the pressurization system to avoid the fuel tank pressure from exceeding the rated value.

[0030] (5) The transfer system adopts a redundant design. The transfer tank and the transfer pump simultaneously add simulated fuel to the standard fuel tank, which improves the transfer efficiency and thus increases the speed of the simulated fuel refueling system. Attached Figure Description

[0031] Figure 1 This is a schematic diagram simulating a fuel refueling system;

[0032] Figure 2 This is a diagram showing the relationships between submodules.

[0033] In the diagram, 1. Simulated fuel source; 2. Transfer water pump; 3. Ball valve one; 4. Transfer water tank; 5. Ball valve two; 6. Ball valve three; 7. Standard filling water tank; 8. Weighing frame; 9. Overflow valve; 10. Coarse filter; 11. Filling water pump; 12. Ball valve four; 13. Check valve; 14. Drain ball valve; 15. Flow meter; 16. Ball valve five; 17. Fine filter one; 18. Ball valve six; 19. Fine filter two; 20. Ball valve seven; 21. Fine filter three; 22. Ball valve eight; 23. Fine filter four; 24. Weighing sensor one; 25. Weighing sensor two; 26. Pressure gauge one; 27. Pressure sensor one; 28. Pressure gauge two; 29. ​​Pressure sensor two; 30. Pressure gauge three; 31. Pressure sensor three; 3 2. Pressure gauge four; 33. Pressure sensor four; 34. Gas source filter one; 35. Pressure shut-off valve one; 36. Gas source filter two; 37. Pressure shut-off valve two; 38. Gas source filter three; 39. Pressure shut-off valve three; 40. Gas source filter four; 41. Pressure shut-off valve four; 42. Pressure gauge five; 43. Pressure reducing valve one; 44. Pressure shut-off valve twelfth; 45. Pressure gauge six; 46. Nitrogen source one; 47. Pressure shut-off valve five; 48. Pressure shut-off valve six; 49. Pressure shut-off valve seven; 50. Pressure shut-off valve eight; 51. Pressure gauge seven; 52. Pressure reducing valve two; 53. Pressure shut-off valve nine; 54. Pressure gauge eight; 55. Nitrogen source two; 56. Pressure shut-off valve ten; 57. Pressure shut-off valve eleven. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0035] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, describes a simulated fuel loading system for full-rocket modal testing of a liquid rocket according to the present invention:

[0036] like Figure 1 As shown, a simulated fuel loading system for full-rocket modal testing of liquid rockets includes a transfer system, a loading system, a pressure control system, a pressurization system, a pressure measurement module, a weighing module, and a control module.

[0037] Transfer system: outputs simulated fuel to the refueling system; controls the refueling flow rate to the standard refueling tank 7 until it reaches the weighing state;

[0038] The fueling system receives the simulated fuel output from the fuel transfer system and adds the simulated fuel in measured amounts to the rocket's first-stage fuel tank, first-stage oxygen tank, second-stage fuel tank, and second-stage oxygen tank.

[0039] Pressure control system: outputs control nitrogen to the rocket's first-stage fuel tank control gas interface, first-stage oxygen tank control gas interface, second-stage fuel tank control gas interface, and second-stage oxygen tank control gas interface, and controls the opening of the relevant simulated fuel filling ports;

[0040] Pressurization system: Outputs pure nitrogen to the rocket's first-stage fuel tank, first-stage oxygen tank, second-stage fuel tank, and second-stage oxygen tank to maintain the relevant tank pressure values;

[0041] Weighing module: Weighs the simulated fuel in the standard filling tank 7 to accurately calculate the simulated fuel filling amount;

[0042] Control module: Displays and records the weight value of the weighing module; displays and records the filling speed and filling amount of the filling system flow meter 15; controls the operation of the transfer pump and the filling pump.

[0043] The transfer system includes a simulated fuel source 1, a transfer water pump 2, a ball valve 1 3, a transfer water tank 4, a ball valve 2 5, a ball valve 3 6, and a standard filling water tank 7.

[0044] The filling system includes a coarse filter 10, a filling water pump 11, a ball valve four 12, an overflow valve 9, a check valve 13, a drain ball valve 14, a flow meter 15, a ball valve five 16, a fine filter one 17, a ball valve six 18, a fine filter two 19, a ball valve seven 20, a fine filter three 21, a ball valve eight 22, and a fine filter four 23.

[0045] The pressurization system includes a nitrogen source 46, a pressure gauge 45, a pressure shut-off valve 12 44, a pressure reducing valve 43, a pressure gauge 5 42, a pressure shut-off valve 11 57, a pressure shut-off valve 41, a gas source filter 40, a pressure shut-off valve 39, a gas source filter 38, a pressure shut-off valve 2 37, a gas source filter 2 36, a pressure shut-off valve 1 35, and a gas source filter 1 34.

[0046] The pressure control system includes a nitrogen source 2 55, a pressure gauge 8 54, a pressure shut-off valve 9 53, a pressure reducing valve 2 52, a pressure gauge 7 51, a pressure shut-off valve 10 56, a pressure shut-off valve 8 50, a pressure shut-off valve 7 49, a pressure shut-off valve 6 48, and a pressure shut-off valve 5 47.

[0047] The pressure measurement module includes pressure gauge 1 (26), pressure sensor 1 (27), pressure gauge 2 (28), pressure sensor 2 (29), pressure gauge 3 (30), pressure sensor 3 (31), pressure gauge 4 (32), and pressure sensor 4 (33).

[0048] The weighing module includes a weighing frame 8, a first weighing sensor 24, and a second weighing sensor 25.

[0049] The control module includes a display screen and a background control system, which displays data of relevant monitoring quantities and controls the operation of relevant functional components.

[0050] The simulated fuel loading system for full-rocket modal testing of liquid rockets, taking the second-stage oxygen tank loading as an example, includes the following operating steps:

[0051] Step (1): Open pressure shut-off valve 547 and pressure shut-off valve 953, and close pressure shut-off valve 1056, pressure shut-off valve 648, pressure shut-off valve 749 and pressure shut-off valve 850. The pressure control system will output nitrogen from nitrogen source 255 through pressure gauge 854, pressure shut-off valve 953, pressure reducing valve 252, pressure gauge 751 and pressure shut-off valve 547 to the control gas interface of the rocket's second-stage oxygen tank. The rocket's second-stage oxygen tank filling port is opened.

[0052] Step (II): Close ball valve 3 and ball valve 5, open ball valve 6. The transfer system will transfer the simulated fuel from the simulated fuel source 1 to the standard filling tank 7 via the transfer pump 2 and ball valve 6 until the standard filling tank 7 is full. Close the transfer pump 2. The control module drives the weighing module to weigh the fuel. The control module receives the data signals from the weighing sensor 24 and the weighing sensor 25, calculates the mass of the standard filling tank 7 before filling, and records it.

[0053] The transfer system has a self-filling structure, which improves the efficiency of filling the standard refueling tank 7. The self-filling structure includes redundant refueling pipes containing ball valve 3 and ball valve 6. The transfer tank 4 is placed on a support 2m above the ground. When the standard refueling tank 7 is being filled, ball valve 3 is opened, and ball valve 6 and ball valve 5 are closed. The control module controls the operation of the transfer pump 2, which injects simulated fuel from the simulated fuel source 1 into the transfer tank 4 via the transfer pump 2 and ball valve 3. When transferring fuel to the standard refueling tank 7, ball valve 5 and ball valve 6 can be opened simultaneously, allowing the standard refueling tank 7 to be filled quickly.

[0054] Step (3): Open ball valve 4 12 and ball valve 8 22, and close drain ball valve 14, ball valve 5 16, ball valve 6 18 and ball valve 7 20. The refueling system will output the received simulated fuel to the rocket's second-stage oxygen tank through coarse filter 10, refueling water pump 11, check valve 13, flow meter 15, ball valve 8 22 and fine filter 4 23.

[0055] When the simulated fuel in the standard refueling tank 7 is close to zero, the refueling pump 11 is turned off. The control module drives the weighing module to weigh the fuel. The control module receives data signals from the weighing sensor 24 and the weighing sensor 25, calculates the mass of the standard refueling tank 7 after refueling, and records it. The mass of the standard refueling tank 7 after refueling minus the mass before refueling is the amount of simulated fuel refueling.

[0056] Repeat the above fueling process until the specified mass of simulated fuel is added to the rocket's second-stage oxygen tank.

[0057] Close pressure shut-off valve 953 and open pressure shut-off valve 1056 until the control gas of the secondary oxygen tank is released, and the simulated fuel filling port of the secondary oxygen tank is closed.

[0058] When the water pressure in the filling system pipeline is greater than the set value of the overflow valve 9, the simulated fuel output by the filling water pump 11 will flow back to the standard filling water tank 7 through the ball valve 12 and the overflow valve 9.

[0059] Step (IV): Close pressure shut-off valve 2 37, pressure shut-off valve 39, pressure shut-off valve 41 and pressure shut-off valve 11 57, and open pressure shut-off valve 12 44 and pressure shut-off valve 1 35. The pressurization system outputs nitrogen from nitrogen source 1 46 through pressure gauge 6 45, pressure shut-off valve 12 44, pressure reducing valve 1 43, pressure gauge 5 42, pressure shut-off valve 1 35 and gas source filter 1 34 to the rocket's second-stage oxygen tank pressurization and filling port.

[0060] During pressurization, the control module collects and monitors the value of the pressure sensor 27 of the pressure measuring module, and the pressure gauge 26 will also display the current pressure value of the secondary oxygen tank. When the pressure value in the secondary oxygen tank increases to the specified value, the pressure shut-off valve 44 and the pressure shut-off valve 35 are closed to stop the nitrogen pressurization.

[0061] Open pressure shut-off valve 1157 until nitrogen gas is released from the secondary oxygen tank pressurization system pipeline.

[0062] The simulated fuel filling process for the primary oxygen tank, primary fuel tank, and secondary fuel tank can refer to the filling process for the secondary oxygen tank.

[0063] The contents not described in detail in this specification are common knowledge to those skilled in the art. The above descriptions are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A simulated fuel loading system for full-rocket modal testing of liquid rockets, characterized in that, include The system includes a transfer system, a filling system, a pressure control system, a pressurization system, a pressure measuring module, a weighing module, and a control module. The transfer system: outputs simulated fuel to the refueling system; controls the refueling flow rate to the standard refueling tank (7) to the weighing state; The fueling system receives the simulated fuel output from the transfer system and adds the simulated fuel in a predetermined amount to the rocket's first-stage fuel tank, first-stage oxygen tank, second-stage fuel tank, and second-stage oxygen tank. The pressure control system outputs control nitrogen to the rocket's first-stage fuel tank control gas interface, first-stage oxygen tank control gas interface, second-stage fuel tank control gas interface, and second-stage oxygen tank control gas interface, and controls the opening of the relevant simulated fuel filling ports; The pressurization system outputs pure nitrogen to the rocket's first-stage fuel tank, first-stage oxygen tank, second-stage fuel tank, and second-stage oxygen tank, maintaining the relevant tank pressure values. The weighing module weighs the simulated fuel in the standard filling water tank (7) to accurately calculate the simulated fuel filling amount; The control module displays and records the weight value of the weighing module; displays and records the filling speed and filling amount of the filling system flow meter (15); and controls the operation of the transfer pump and the filling pump. The simulated fuel loading of a liquid rocket based on the second-stage oxygen tank includes the following steps: Step (1): The pressure control system inputs nitrogen into the control gas interface of the second-stage oxygen tank, controlling the opening of the rocket's second-stage oxygen tank filling port; Step (2): The transfer system adds simulated fuel to the standard refueling tank (7), and the weighing module weighs and records the mass of the standard refueling tank (7) before refueling; Step (3): The fueling system is turned on, and the simulated fuel in the standard fueling tank (7) is added to the second stage oxygen tank of the rocket. The mass of the standard fueling tank (7) after fueling is weighed and recorded. The mass of the standard fueling tank (7) after fueling minus the mass before fueling is the amount of simulated fuel added for this time. The above operation is repeated until the specified mass of simulated fuel is added. The interfaces of the refueling system all use standard interfaces, and the control valves are replaced according to the simulated fuel refueling requirements of the rocket model. The refueling system can refuel any fuel tank according to the requirements of the full-rocket modal test of the liquid rocket; Both the weighing module and the flow meter can accurately calculate the simulated fuel filling amount; The pressure sensor of the pressure measurement module can monitor the pressure value of the storage tank. The control module will display the pressure value and control the pressurization system to prevent the fuel storage tank pressure from exceeding the rated value. The transfer system adopts a redundant design, with the transfer tank and transfer pump simultaneously adding simulated fuel to the standard fuel tank, which improves the transfer efficiency and thus increases the speed of the simulated fuel refueling system.

2. The system according to claim 1, characterized in that, The transfer system includes a simulated fuel source (1), a transfer water pump (2), ball valve one (3), a transfer water tank (4), ball valve two (5), ball valve three (6), and a standard filling water tank (7).

3. The system according to claim 1, characterized in that, The filling system includes a coarse filter (10), a filling pump (11), ball valve four (12), an overflow valve (9), a check valve (13), a drain ball valve (14), a flow meter (15), ball valve five (16), fine filter one (17), ball valve six (18), fine filter two (19), ball valve seven (20), fine filter three (21), ball valve eight (22), and fine filter four (23).

4. The system according to claim 1, characterized in that, The pressure control system includes nitrogen source 2 (55), pressure gauge 8 (54), pressure shut-off valve 9 (53), pressure reducing valve 2 (52), pressure gauge 7 (51), pressure shut-off valve 10 (56), pressure shut-off valve 8 (50), pressure shut-off valve 7 (49), pressure shut-off valve 6 (48) and pressure shut-off valve 5 (47).

5. The system according to claim 1, characterized in that, The pressurization system includes nitrogen source one (46), pressure gauge six (45), pressure shut-off valve twelve (44), pressure reducing valve one (43), pressure gauge five (42), pressure shut-off valve eleven (57), pressure shut-off valve four (41), air source filter four (40), pressure shut-off valve three (39), air source filter three (38), pressure shut-off valve two (37), air source filter two (36), pressure shut-off valve one (35), and air source filter one (34).

6. The system according to claim 1, characterized in that, The pressure measurement module includes pressure gauge 1 (26), pressure sensor 1 (27), pressure gauge 2 (28), pressure sensor 2 (29), pressure gauge 3 (30), pressure sensor 3 (31), pressure gauge 4 (32) and pressure sensor 4 (33).

7. The system according to claim 1, characterized in that, The weighing module includes a weighing frame (8), a first weighing sensor (24), and a second weighing sensor (25).

8. The system according to claim 1, characterized in that, The control module includes a display screen and a background control system, which displays data of relevant monitoring quantities and controls the operation of relevant functional components.

Images