Bidirectional micro-pushing multi-unit iodine working medium storage and supply system

Abstract

The utility model discloses a bi-directional micro-pushing multi-unit iodine working medium storage and supply system, which comprises a bottom plate, a control power supply, two mounting plates, a plasma micro-pushing device, an iodine working medium storage and supply unit and a multi-stage conveying pipeline, the control power supply is arranged at the position close to the edge of the bottom plate, the two mounting plates are oppositely fixed at the two ends of the bottom plate, and the plasma micro-pushing device is arranged on the plasma micro-pushing device. The plasma micro-pushers are respectively fixed on the two mounting plates, the plurality of groups of iodine working medium storage and supply units are arranged, the multi-stage conveying pipeline comprises a working medium conveying main pipe, two groups of working medium conveying branch pipes and a plurality of working medium access pipelines, the two groups of working medium conveying branch pipes are symmetrically arranged at the two ends of the working medium conveying main pipe, and the working medium access pipelines are connected with the working medium conveying main pipe. The working medium access pipelines are respectively connected with the plasma micro-thruster, and each working medium access pipeline is connected with one iodine working medium storage and supply unit. By means of the mode, the motion adjusting efficiency of the microsatellite can be improved, the operation reliability of the whole system in the outer space is enhanced, and the overall service life of the microsatellite is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of aerospace science and technology, in particular to a two-way micro-propulsion multi-unit iodine working medium storage and supply system. Background Art

[0002] As the size and mass of the satellite increase, the launch difficulty and resource consumption increase. Therefore, with the rapid progress of science and technology in recent years, it has become an increasingly obvious trend to manufacture and launch small satellites according to actual needs. Moreover, with the development of basic industries, the performance of micro-satellites has become stronger and stronger, and has basically penetrated into various fields where traditional satellites may be applied. When micro-satellites move in space, they usually need to adjust the flight attitude of the satellite or change the orbit through micro-propulsion devices according to actual needs. Since the satellite is flying in space, it is impossible to carry out conventional maintenance and treatment. If the micro-propulsion device fails, it will cause the micro-satellite to be scrapped. Therefore, it is necessary to improve the fault tolerance and reliability of the micro-propulsion device. The commonly used plasma micro-propulsion devices are generally unidirectional. The procedure for adjusting the action attitude of the micro-satellite in space is relatively complicated. In addition, the storage tanks that provide iodine working fluid for the plasma micro-propulsion device are generally single tanks. On the one hand, the single tank is restricted by the conversion power of the solar panels in space and cannot be made too large, so the effective service life is short. On the other hand, if the tank fails and there is no backup plan, it will seriously affect the operation of the plasma micro-propulsion device and the reliability is poor. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a bidirectional micro-propulsion multi-unit iodine working medium storage and supply system, which can improve the efficiency of small and micro satellite motion attitude adjustment and enhance the reliability of the storage and supply system operation.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a bidirectional micro-push multi-unit iodine working medium storage and supply system, the bidirectional micro-push multi-unit iodine working medium storage and supply system comprises: a base plate, a control power supply, a mounting plate, a plasma micro-push device, an iodine working medium storage and supply unit and a multi-stage delivery pipeline, the control power supply is installed on the base plate near the edge position, the mounting plate has two pieces, which are fixed at both ends of the base plate relative to each other, the plasma micro-push device has two groups, which are respectively fixed on the two mounting plates, the pushing directions of the two groups of plasma micro-push devices are opposite, and the iodine working medium storage and supply unit has multiple groups arranged between the two groups of plasma micro-push devices The multi-stage delivery pipeline includes a working fluid delivery main pipe, a working fluid delivery branch pipe and a working fluid access pipe. There are two groups of working fluid delivery branch pipes, which are symmetrically arranged at both ends of the working fluid delivery main pipe and respectively connected to corresponding plasma micro-propelling devices. There are multiple working fluid access pipes, one end of each working fluid access pipe is connected to the working fluid delivery main pipe, and the other end is connected to an iodine working fluid storage and supply unit. Two first-class solenoid valves are provided on the working fluid delivery main pipe. The access position of the working fluid access pipe is located between the two main solenoid valves. A second-class solenoid valve is installed on each working fluid access pipe. All iodine working fluid storage and supply units and all solenoid valves are independently connected to the control power supply.

[0005] In a preferred embodiment of the utility model, each group of plasma micro-thrust devices includes two ion thrusters arranged in parallel in the same direction and a neutralizer arranged between the two ion thrusters, and each group of working fluid delivery branch pipes includes two working fluid delivery branch pipes, and a third type solenoid valve is installed on each working fluid delivery branch pipe. A second ceramic heating sleeve is installed at the connection position between the working fluid delivery main pipe and each working fluid delivery branch pipe, and the second ceramic heating sleeve is independently connected to the control power supply.

[0006] In a preferred embodiment of the present invention, a first ceramic heating sleeve is installed on the working fluid delivery main pipe, and the range of the first ceramic heating sleeve covers all access positions of the working fluid access pipelines and the working fluid delivery main pipe.

[0007] In a preferred embodiment of the present invention, the storage and supply unit includes an iodine working fluid storage box and a temperature insulation sleeve, the iodine working fluid storage box has an electric heating function, and each iodine working fluid storage box is independently connected to the control power supply.

[0008] In a preferred embodiment of the present invention, the storage and supply units are 1 to 3 pairs, which are symmetrically arranged on both sides of the conveying main pipe.

[0009] The beneficial effects of the utility model are as follows: the utility model is a modification carried out on the basis of the existing plasma micro-propulsion device of the micro-satellite, and by adding a reverse propulsion module, the direction of the micro-satellite motion angle adjustment is increased, thereby improving the efficiency of the satellite attitude adjustment, and in order to increase the service life of the corresponding micro-satellite, multiple iodine working fluid storage units are added on the basis of the original single-tank supply. On the one hand, the effective working time of the satellite motion adjustment can be increased by using multiple groups of iodine working fluid storage units, and on the other hand, the combined use of multiple iodine working fluid storage units can effectively avoid the problem of failure due to malfunction of a single tank, thereby enhancing the reliability of the entire system in the harsh environment of space and improving the service life of the micro-satellite. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the top view of a preferred embodiment of the utility model;

[0011] The markings of the components in the accompanying drawings are as follows:

[0012] 1. Base plate, 2. Mounting plate, 3. Control power supply, 4. Insulation sleeve, 5. Iodine working fluid storage box, 6. Ion thruster, 7. Neutralizer, 8. Working fluid delivery main pipe, 9. Working fluid access pipeline, 10. Working fluid delivery branch pipe, 11. Class I solenoid valve, 12. Class II solenoid valve, 13. Class III solenoid valve, 14. First ceramic heating sleeve, 15. Second ceramic heating sleeve. DETAILED DESCRIPTION

[0013] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0014] See also Figure 1 , the utility model embodiment includes:

[0015] A bidirectional micro-push multi-unit iodine working medium storage and supply system, the bidirectional micro-push multi-unit iodine working medium storage and supply system comprising: a base plate 1, a control power supply 3, a mounting plate 2, a plasma micro-push device, an iodine working medium storage and supply unit and a multi-stage delivery pipeline, the control power supply 3 is installed near the edge of the base plate 1, the mounting plate 2 has two pieces, which are relatively fixed at both ends of the base plate 1, the plasma micro-push device has two groups, which are respectively fixed on the two mounting plates 2, and the pushing directions of the two groups of plasma micro-push devices are opposite, the iodine working medium storage and supply unit can have 1 to 3 groups, and in actual production, generally 2 groups, which are symmetrically arranged in pairs in the space between the two groups of plasma micro-push devices, and the multi-stage delivery pipeline includes a working medium delivery main Tube 8, working fluid delivery branch pipe 10 and working fluid access pipe 9, there are two groups of working fluid delivery branch pipes 10, which are symmetrically arranged at both ends of the working fluid delivery main pipe 8 and are respectively connected to corresponding plasma micro-pushing devices. There are four working fluid access pipes 9, which are symmetrically arranged on both sides of the working fluid delivery main pipe 8. One end of each working fluid access pipe 9 is connected to the working fluid delivery main pipe 8, and the other end is connected to an iodine working fluid storage and supply unit. Two first-class solenoid valves 11 are provided on the working fluid delivery main pipe 8. The access position of the working fluid access pipe 9 is located between the two main solenoid valves 11. A second-class solenoid valve 12 is installed on each working fluid access pipe 9. All iodine working fluid storage and supply units and all solenoid valves are independently connected to the control power supply 3.

[0016] Each group of plasma micro-propelling devices includes two ion thrusters 6 arranged in parallel in the same direction and a neutralizer 7 arranged between the two ion thrusters 6. Correspondingly, each group of working fluid delivery branch pipes 10 includes two working fluid delivery branch pipes 10, each working fluid delivery branch pipe 10 is connected to an ion thruster 6, and a three-type electromagnetic valve 13 is installed on each working fluid delivery branch pipe 10. In this way, the ion thrusters 6 in each direction have a backup when working, and if a problem occurs in one of them, the path of iodine steam can be immediately changed by the action switching of the three-type electronic valve 13, so as to achieve equivalent substitution and improve the reliability of the entire system. The working fluid delivery main pipe 8 and each working fluid delivery branch pipe 10 are connected at a second ceramic heating sleeve 15, and the second ceramic heating sleeve 15 is independently connected to the control power supply 3. Since the working fluid delivery branch pipe 10 has two branches, the connection position with the working fluid delivery main pipe 8 is a T-shaped fork. Due to the shape of this fork position, iodine vapor is easy to solidify at this position when the system stops working, and even cause blockage in severe cases. Therefore, it is necessary to add an independent second ceramic heating sleeve 15 here, which can quickly vaporize the solid iodine at this position when starting the system and then transport it to the ion thruster 6.

[0017] The first ceramic heating jacket 14 is installed on the working fluid delivery main pipe 8, and the range of the first ceramic heating jacket 14 covers the access positions of all working fluid access pipes 9 and the working fluid delivery main pipe 8. Because there are four working fluid access pipes 9 symmetrically connected to the working fluid delivery main pipe 8, the pipeline structure at this location is relatively complex when the system is running, and the iodine working fluid is easily blocked when condensed. Therefore, the first ceramic heating jacket 14 can prevent pipeline blockage and improve the transportation efficiency of iodine vapor in the pipeline.

[0018] The storage and supply unit includes an iodine working medium storage box 5 and a temperature insulation sleeve 4. The iodine working medium storage box 5 has an electric heating function, and each iodine working medium storage box 5 is independently connected to the control power supply 3. In this way, when the ion thruster 6 is working, any number of iodine working medium storage boxes 5 can be heated as needed to achieve different propulsion powers.

[0019] In actual use, the utility model can control the opening and closing action combination of two first-class solenoid valves 11, four second-class solenoid valves 12 and four third-class solenoid valves 13 as needed to realize the connection of the working medium delivery route between any number of iodine working medium storage boxes 5 and any ion thruster 6, thereby meeting the control requirements of different propulsion powers and different propulsion directions, making the adjustment of the motion attitude of the micro-satellite more convenient. Moreover, the working conditions in various environments are backed up, the overall reliability of the system is good, and it can better adapt to the harsh working environment of outer space.

[0020] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A two-way micro-propellant multi-unit iodine working medium storage and supply system, characterized in that: The bidirectional micro-push multi-unit iodine working medium storage and supply system comprises: a base plate, a control power supply, a mounting plate, a plasma micro-push device, an iodine working medium storage and supply unit and a multi-stage delivery pipeline, wherein the control power supply is mounted on the base plate near the edge, the mounting plate has two pieces, which are fixed at both ends of the base plate relative to each other, the plasma micro-push device has two groups, which are fixed on the two mounting plates respectively, and the pushing directions of the two groups of plasma micro-push devices are opposite, the iodine working medium storage and supply unit has multiple groups arranged in the space between the two groups of plasma micro-push devices, the multi-stage delivery pipeline comprises a working medium delivery main pipe, a working medium delivery ... There are two groups of working fluid delivery branch pipes, which are symmetrically arranged at both ends of the working fluid delivery main pipe and respectively connected to corresponding plasma micro-pushing devices. There are multiple working fluid access pipes, one end of each working fluid access pipe is connected to the working fluid delivery main pipe, and the other end is connected to an iodine working fluid storage and supply unit. Two first-class solenoid valves are arranged on the working fluid delivery main pipe. The access position of the working fluid access pipe is located between the two main solenoid valves. A second-class solenoid valve is installed on each working fluid access pipe. All iodine working fluid storage and supply units and all solenoid valves are independently connected to the control power supply.

2. The bidirectional micro-propellant multi-unit iodine working medium storage and supply system according to claim 1 is characterized in that: Each group of plasma micro-thrust devices includes two ion thrusters arranged in parallel in the same direction and a neutralizer arranged between the two ion thrusters. Correspondingly, each group of working fluid delivery branch pipes includes two working fluid delivery branch pipes, and a third-type solenoid valve is installed on each working fluid delivery branch pipe.

3. The bidirectional micro-propellant multi-unit iodine working medium storage and supply system according to claim 2 is characterized in that: A second ceramic heating sleeve is installed at the connection position between the working fluid delivery main pipe and each working fluid delivery branch pipe, and the second ceramic heating sleeve is independently connected to the control power supply.

4. The bidirectional micro-propellant multi-unit iodine working medium storage and supply system according to claim 1, characterized in that: A first ceramic heating sleeve is installed on the working fluid delivery main pipe, and the range of the first ceramic heating sleeve covers the access positions of all working fluid access pipelines and the working fluid delivery main pipe.

5. The bidirectional micro-propellant multi-unit iodine working medium storage and supply system according to claim 1, characterized in that: The storage and supply unit comprises an iodine working medium storage box and a temperature insulation sleeve. The iodine working medium storage box has an electric heating function. Each iodine working medium storage box is independently connected to the control power supply.

6. The bidirectional micro-propulsion multi-unit iodine working medium storage and supply system according to claim 1, characterized in that: The storage and supply units are in 1 to 3 pairs, and are symmetrically arranged in pairs on both sides of the conveying main pipe.

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