CN219733527U - Propellant synchronous discharge pipeline connecting device of liquid propulsion attitude control power system - Google Patents
Propellant synchronous discharge pipeline connecting device of liquid propulsion attitude control power system Download PDFInfo
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- CN219733527U CN219733527U CN202320396285.XU CN202320396285U CN219733527U CN 219733527 U CN219733527 U CN 219733527U CN 202320396285 U CN202320396285 U CN 202320396285U CN 219733527 U CN219733527 U CN 219733527U
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- pipeline
- propellant
- valve
- electric explosion
- throttling
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- 239000003380 propellant Substances 0.000 title claims abstract description 52
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 title claims abstract description 25
- 238000004880 explosion Methods 0.000 claims abstract description 43
- 239000011148 porous material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 10
- 239000007800 oxidant agent Substances 0.000 abstract description 6
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- 239000002828 fuel tank Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a propellant synchronous discharge pipeline connecting device of a liquid propulsion attitude control power system, which comprises a storage tank screw joint, a storage tank-electric explosion valve pipeline, an electric explosion valve-throttling piece pipeline, a throttling piece-balance valve pipeline, a flow balance valve and an outlet pipeline joint, wherein one side of the throttling piece is positioned at the outlet end of the electric explosion valve-throttling piece pipeline, the other side of the throttling piece is positioned at the inlet end of the throttling piece-balance valve pipeline, and propellant (fuel or oxidant) from two same types of propellant storage tanks finally flows into the flow balance valve and the outlet pipeline joint and is discharged after passing through the pipeline connecting device. The utility model meets the requirement that the propellant quantity discharge in two fuel storage tanks which are connected in parallel and symmetrical with each other or two oxidant storage tanks which are connected in parallel and symmetrical with each other has a difference of not more than 15kg under the working condition of each working condition of the engine in the final-stage attitude control system, thereby ensuring that the mass center of the propellant of the final-stage attitude control power system is transversely moved within a certain range.
Description
Technical Field
The utility model belongs to the technical field of liquid pipeline systems, and relates to a device for connecting a liquid propulsion attitude control power system propellant synchronous discharge pipeline, which is used for controlling the centroid of a propellant to transversely move.
Background
In the process of in-orbit working of the liquid propulsion attitude control power system for the carrier rocket, in order to ensure that the mass center of the propellant of the final attitude control system transversely moves within a certain range, under the working condition of each working condition of an engine in the final attitude control system, the quantity of propellant in two fuel storage tanks which are connected in parallel and are symmetrical with each other and two oxidant storage tanks which are connected in parallel and are symmetrical with each other is required to be not more than 15kg in discharge difference.
Because the weight of fuel and oxidant in the attitude control system is large, the system pipeline is complex, the conventional discharge scheme of the storage tank pipeline of the attitude control system is difficult to meet the index requirement, and the transverse movement of the center of mass of the propellant of the final attitude control system cannot be ensured to be within a certain range.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide a propellant synchronous discharge pipeline connecting device of a liquid propulsion attitude control power system, which meets the requirement that the propellant quantity discharge phase difference between two fuel storage tanks which are connected in parallel and symmetrical with each other and two oxidant storage tanks which are connected in parallel and symmetrical with each other is not more than 15kg under the working condition of each working condition of an engine in a final attitude control system, and further ensures that the mass center of the propellant of the final attitude control system transversely moves within a certain range.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the propellant synchronous discharge pipeline connecting device of the liquid propulsion attitude control power system is used for connecting two propellant storage tanks of the same kind and comprises,
the inlet ends of the two storage tank-electric explosion valve pipelines are respectively connected with two same-kind propellant storage tanks through one storage tank screw joint;
the electric explosion valve and the electric explosion valve-throttling element pipeline are characterized in that the inlet end of the electric explosion valve is connected with the outlet end of the storage box-electric explosion valve pipeline, and the outlet end of the electric explosion valve is connected with the inlet end of the electric explosion valve-throttling element pipeline;
the device comprises a throttling piece and a throttling piece-balance valve pipeline, wherein the throttling piece is used for controlling the pressure of a propellant, one side of the throttling piece is positioned at the outlet end of the electric explosion valve-throttling piece pipeline, and the other side of the throttling piece is positioned at the inlet end of the throttling piece-balance valve pipeline;
the inlet end of the flow balance valve is communicated with the outlet end of the pipeline between the throttling element and the balance valve, and the propellants in the two propellant storage tanks of the same kind flow out through the outlet pipeline of the flow balance valve;
and the outlet pipeline connector is connected with the pipeline outlet of the flow balance valve.
Further, the method comprises the steps of, the two storage tank-electric explosion valve pipelines, the two electric explosion valve-throttling piece pipelines and the two throttling piece-balance valve pipelines corresponding to the two same propellant storage tanks are symmetrically arranged about the center of the flow balance valve.
Further, the tank screw joint includes a ball joint and a jacknut.
Furthermore, the electric explosion valve is an electric explosion valve which is in a conducting state after electric explosion, the electric explosion valve assembly after electric explosion is adopted for liquid flow debugging, and the electric explosion valve without electric explosion is replaced on a formal product.
Further, the throttling element is a series of throttling hole plates with different pore sizes, or a series of synchronous valves with different pore sizes, or a throttling valve.
Further, the flow balance valve comprises a sensitive element, an elastic element and a sealing pair, and plays a role in dynamically adjusting flow by self-balancing the pressure difference at two ends.
Further, the outlet pipeline of the propellant synchronous discharge pipeline connecting device is arranged in front of the inlet of the main filter of the main propellant pipeline.
Compared with the prior art, the propellant synchronous discharge pipeline connecting device designed by the utility model has the advantages of exquisite structure and symmetrical layout of synchronous discharge pipelines, thus being particularly suitable for the accurate control of the synchronous discharge of liquid propellant.
The pipeline connecting device of the utility model has the following characteristics:
(1) The propellant synchronous discharge pipeline connecting device has the advantages that the structure is exquisite, the synchronous discharge pipelines are symmetrically distributed, and the propellant synchronous discharge pipeline connecting device is convenient to install;
(2) The liquid flow of the propellant synchronous discharge pipeline connecting device is simple to debug, the debugging parameterized control is realized, and the reliability of the flow resistance matching of the system pipeline is improved;
(3) The flow difference of the two storage tanks is controlled within a set range, so that the accurate control of the transverse movement of the center of mass of the propellant of the final-stage attitude control power system can be realized, and the load is effectively ensured to be sent into a preset track by the final-stage attitude control power system.
Drawings
FIG. 1 is a schematic diagram of a liquid propulsion attitude control power system propellant synchronous discharge pipeline connection device;
in the figure, a 1-tank screw joint; 2-a pipeline between the storage tank and the electric explosion valve; 3-an electric explosion valve; 4-an electric explosion valve-throttling piece pipeline; 5-throttle; 6-throttling element-balancing valve line; 7-flow balancing valve.
Detailed Description
The present utility model will be further described with reference to the drawings and the specific embodiments, but it should not be construed that the scope of the subject matter of the present utility model is limited to the following embodiments, and various modifications, substitutions and alterations made according to the ordinary skill and familiar means of the art to which this utility model pertains are included within the scope of the present utility model without departing from the above technical idea of the utility model.
As shown in fig. 1, the propellant synchronous discharge pipeline connecting device of the liquid propulsion attitude control power system in the embodiment is used for connecting two storage tanks filled with the same propellant.
Two fuel tanks are taken as an example. The left tank screw 1 in fig. 1 is connected with the outlet of the No. 1 fuel tank, and the right tank screw 1 in fig. 1 is connected with the outlet of the No. 2 fuel tank. The fuel storage tanks No. 1 and No. 2 sequentially pass through a storage tank-electric explosion valve pipeline 2, an electric explosion valve 3, an electric explosion valve-throttling element pipeline 4, a throttling element 5 (a synchronous valve is selected in the embodiment, the aperture of a throttling ring or a throttling opening in the synchronous valve is changed to achieve flow resistance adjustment), a throttling element-balance valve pipeline 6 and then enter a flow balance valve 7 and an outlet pipeline joint, and finally propellant from the two fuel storage tanks is gathered to the flow balance valve 7 and flows out of the outlet pipeline joint.
Wherein, in order to ensure that the fuel propellant discharge difference of the two fuel storage tanks is not more than 15kg, before the electric explosion valve 3 is formally installed, the electric explosion valve 3 which is already exploded is used for replacing the electric explosion valve 3 which is not exploded in the pipeline connecting device.
The storage tank screw joint 1 adopts a structure that one end is provided with a spherical joint and an outer sleeve nut, and is convenient to be connected with a pipeline of a liquid flow debugging table and an outlet of the storage tank. When the left liquid flow of the flow balance valve 7 is debugged, a plug is adopted to plug the interface of the storage box screw joint 1 on the right side before the liquid flow is debugged; when the flow balance valve 7 is used for debugging the right side liquid flow, a plug is used for plugging the left side connector 1 of the storage tank screw joint before the liquid flow is debugged.
Then, the flow adjustment (i.e. the flow adjustment of the fuel propellant) is performed, and during the adjustment, the flow resistances after the fuel tank No. 1 and the fuel tank No. 2 are compared to the flow balance valve 7 by replacing the throttle rings in the throttle member 5 with different apertures until the actual flow adjustment value is within the target value range.
Likewise, the mounting connection and flow adjustment for the two oxidizer propellant tanks is performed in the manner described above.
Claims (7)
1. The utility model provides a liquid impels attitude accuse driving system propellant synchro-discharge pipeline connecting device which characterized in that: for connecting two propellant reservoirs of the same kind, and comprising,
the device comprises a storage tank screw joint (1) and a storage tank-electric explosion valve pipeline (2), wherein the inlet ends of the two storage tank-electric explosion valve pipelines (2) are respectively connected with two same propellant storage tanks through one storage tank screw joint (1);
the device comprises an electric explosion valve (3) and an electric explosion valve-throttling element pipeline (4), wherein the inlet end of the electric explosion valve (3) is connected with the outlet end of the storage tank-electric explosion valve pipeline (2), and the outlet end of the electric explosion valve (3) is connected with the inlet end of the electric explosion valve-throttling element pipeline (4);
the device comprises a throttling piece (5) and a throttling piece-balance valve pipeline (6), wherein the throttling piece (5) is used for controlling the pressure of a propellant, one side of the throttling piece (5) is positioned at the outlet end of the electric explosion valve-throttling piece pipeline (4), and the other side of the throttling piece is positioned at the inlet end of the throttling piece-balance valve pipeline (6);
the inlet end of the flow balance valve (7) is communicated with the outlet end of the throttling element-balance valve pipeline (6), and the propellants in two propellant storage tanks of the same kind flow out through the pipeline outlet of the flow balance valve (7);
and the outlet pipeline connector is connected with a pipeline outlet of the flow balance valve (7).
2. The liquid propulsion attitude control power system propellant synchronous discharge pipeline connection device according to claim 1, wherein: the two tank-electric explosion valve inter-pipelines (2), the two electric explosion valve-throttling piece inter-pipelines (4) and the two throttling piece-balance valve inter-pipelines (6) corresponding to two same propellant tanks are arranged symmetrically about the center of the flow balance valve (7).
3. The liquid propulsion attitude control power system propellant synchronous discharge pipeline connection device according to claim 1, wherein: the tank screw joint (1) comprises a spherical joint and a jacket nut.
4. The liquid propulsion attitude control power system propellant synchronous discharge pipeline connection device according to claim 1, wherein: the electric explosion valve (3) is an electric explosion valve which is already subjected to electric explosion and is in a conducting state.
5. The liquid propulsion attitude control power system propellant synchronous discharge pipeline connection device according to claim 1, wherein: the throttling piece (5) is a series of throttling hole plates with different pore sizes, or a series of synchronous valves with different pore sizes, or a throttling valve.
6. The liquid propulsion attitude control power system propellant synchronous discharge pipeline connection device according to claim 1, wherein: the flow balance valve (7) comprises a sensitive element, an elastic element and a sealing pair, and pressure difference at two ends is balanced by self force.
7. The liquid propulsion attitude control power system propellant synchronous discharge pipeline connection device according to claim 1, wherein: the outlet pipeline joint of the propellant synchronous discharge pipeline connecting device is arranged in front of the inlet of the main filter of the main propellant pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320396285.XU CN219733527U (en) | 2023-03-06 | 2023-03-06 | Propellant synchronous discharge pipeline connecting device of liquid propulsion attitude control power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320396285.XU CN219733527U (en) | 2023-03-06 | 2023-03-06 | Propellant synchronous discharge pipeline connecting device of liquid propulsion attitude control power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219733527U true CN219733527U (en) | 2023-09-22 |
Family
ID=88029147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320396285.XU Active CN219733527U (en) | 2023-03-06 | 2023-03-06 | Propellant synchronous discharge pipeline connecting device of liquid propulsion attitude control power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219733527U (en) |
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2023
- 2023-03-06 CN CN202320396285.XU patent/CN219733527U/en active Active
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