CN216240987U - Pressure supplementing and air sealing system for vertical recovery rocket storage tank - Google Patents

Pressure supplementing and air sealing system for vertical recovery rocket storage tank Download PDF

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Publication number
CN216240987U
CN216240987U CN202122613261.9U CN202122613261U CN216240987U CN 216240987 U CN216240987 U CN 216240987U CN 202122613261 U CN202122613261 U CN 202122613261U CN 216240987 U CN216240987 U CN 216240987U
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tank
pipeline
gas
valve
auxiliary power
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罗庶
成勇
杜江
赵学光
丁子航
何海涛
龚习
刘岳
姚少君
查雄权
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CASIC Rocket Technology Co
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CASIC Rocket Technology Co
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Abstract

The utility model particularly relates to a pressure supplementing and air sealing system design for a vertical recovery rocket storage tank, which comprises the following steps: an auxiliary power system is arranged and sequentially comprises an air bottle, an auxiliary power system main path electromagnetic valve, a pressure reducing valve and a plurality of thrust chambers along the air supply direction of a pipeline; a branch pipeline is arranged between the gas cylinder and the main electromagnetic valve of the auxiliary power system, and is connected with and supplies gas to the pressure supplementing system and the gas sealing system of the storage tank through pipelines; the gas cylinder supplies gas to the auxiliary power system to meet the attitude control requirement in the rocket flying process, simultaneously supplies gas to the gas sealing system of the storage tank to meet the gas sealing requirement, the electromagnetic valve on the pressure compensating system of the storage tank is opened after the rocket lands, and the residual gas of the gas cylinder of the auxiliary power system is utilized to meet the pressure compensating requirement of the discharged propellant. The utility model does not need to separately arrange the gas cylinders of the storage tank pressure supplementing and gas sealing systems, simplifies the power system, reduces the total weight of the system, has high gas utilization rate of the gas cylinders of the auxiliary power system, and obviously improves the efficiency of the rocket.

Description

Pressure supplementing and air sealing system for vertical recovery rocket storage tank
Technical Field
The utility model relates to the technical field of aerospace, in particular to a pressure supplementing and air sealing system for a vertical recovery rocket storage tank.
Background
For the vertical recovery rocket, the propellant in the storage tank needs to be discharged after the rocket lands, so that the pressure of the storage tank needs to be supplemented; the domestic active disposable low-temperature liquid carrier rocket storage tank pressurization generally adopts the schemes of gas pressurization, autogenous pressurization, gas cylinder pressurization and the like, and adopts a special gas cylinder to meet the pressure supplementing requirement of the rocket storage tank; meanwhile, after the rocket flies and lands, the exhaust valve control cavity and the exhaust pipe need to be sealed by air, so that the exhaust valve and the safety valve are prevented from being frozen by low-temperature propellant induced refrigeration and suction, and the air seal also needs a gas bottle to provide gas; aiming at the pressure supplementing and air sealing requirements of the rocket storage tank, if a special gas cylinder is arranged, the complexity of the system is increased, the manufacturing cost is improved, a novel vertical recovery rocket storage tank pressure supplementing and air sealing system is needed, the pressure supplementing and air sealing requirements of a control cavity of an exhaust valve and an exhaust pipe of the rocket storage tank are met through a simple gas supply system, and the total weight of the system is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a scheme of a vertical recovery rocket storage tank pressure supplementing and air sealing system utilizing auxiliary power gas bottle gas. The power system adopting the system has greatly reduced complexity and manufacturing cost, and can meet the pressure supplementing requirement of the storage tank after the rocket lands, thereby meeting the discharge requirement of the rocket propellant, and simultaneously meeting the air sealing requirement to prevent the exhaust valve and the safety valve from being frozen and incapable of working normally.
The utility model has the specific scheme that the pressure supplementing and air sealing system of the vertical recovery rocket storage tank comprises an auxiliary power system, wherein the auxiliary power system sequentially comprises an air bottle, an auxiliary power system main path electromagnetic valve, a pressure reducing valve and a plurality of thrust chambers along the air supply direction of an auxiliary power system pipeline;
and a branch pipeline is arranged between the gas cylinder and the main electromagnetic valve of the auxiliary power system and is connected with and supplies gas to the pressure supplementing system and the gas sealing system of the storage tank through pipelines.
Further, the branch pipe is controlled by a solenoid valve to be communicated with a storage tank pressure supplementing system and a storage tank air sealing system respectively, and the storage tank comprises an oxidant tank and a fuel tank.
Furthermore, an oxidant tank pressure supplementing electromagnetic valve is arranged between the branch pipeline and the oxidant tank, and a pipeline between the oxidant tank pressure supplementing electromagnetic valve and the oxidant tank is also communicated with a ground pressurized gas pipeline and is provided with a ground pressurized one-way valve.
Furthermore, an oxidant tank pressure supplementing solenoid valve is arranged on a pipeline between the branch pipeline and the oxidant tank, the pipeline between the oxidant tank pressure supplementing solenoid valve and the oxidant tank is also communicated with an oxidant tank ground pressurization pipeline, and an oxidant tank ground pressurization one-way valve is arranged on the oxidant tank ground pressurization pipeline.
Furthermore, a fuel tank pressure supplementing electromagnetic valve is arranged on a pipeline between the branch pipeline and the fuel tank, the pipeline between the fuel tank pressure supplementing electromagnetic valve and the fuel tank is also communicated with a fuel tank ground pressurization pipeline, and a fuel tank ground pressurization one-way valve is arranged on the fuel tank ground pressurization pipeline.
And a gas seal check valve of an oxidant tank exhaust pipe and a gas seal check valve of an oxidant tank exhaust valve control cavity are arranged on the pipeline between the branch pipeline and the oxidant tank in parallel, and the gas seal check valves are used for respectively carrying out gas seal on the control cavities in the oxidant tank exhaust pipe and the oxidant tank exhaust valve.
The pipeline between the branch pipeline and the fuel agent tank is provided with a gas seal electromagnetic valve and a fuel tank vent valve, and the pipeline between the gas seal electromagnetic valve and the fuel tank vent valve is connected with a fuel tank vent pipe gas seal one-way valve and a fuel tank vent valve control cavity gas seal one-way valve in parallel, so that the gas seal is respectively carried out on the fuel tank vent pipe and the control cavity inside the fuel tank vent valve.
And a filter is also arranged in a pipeline between the gas cylinder and the branch pipeline on the main pipeline of the auxiliary power system.
And a plurality of pore plates are also arranged in the pipeline of the branch pipeline communicated with the storage tank pressure supplementing system and the storage tank air sealing system, and are used for throttling the gas led to the storage tank and the air sealing system so as to reduce the gas pressure.
Compared with the prior art, the auxiliary power system utilizes auxiliary power gas cylinders to be respectively communicated with the storage tank and the gas seal system through the branch pipe routing electromagnetic valve, so that the attitude control requirement of the auxiliary power system is met, the gas seal requirement of a rocket after flight and landing is met, the pressure supplement requirement of the storage tank for discharging propellant after the rocket lands is met, the system is simple and easy to construct, the system does not need to be provided with the pressure supplement system and the gas seal gas cylinders independently, the overall complexity of the power system is simplified, the total weight of the system is reduced, the gas utilization rate of the auxiliary power system gas cylinders is high, and the rocket efficiency is obviously improved.
In the using process of the system, the electromagnetic valve is opened according to the attitude control requirement, the gas of the high-pressure gas cylinder enters the thrust chamber, and the generated high-speed gas is sprayed out to generate thrust; opening an air seal electromagnetic valve on the rocket, and allowing air to enter an exhaust valve control cavity and an exhaust pipe for air seal through the air seal electromagnetic valve and an air seal one-way valve in sequence; and after the rocket lands, an electromagnetic valve on the pressure supplementing system is opened, and the residual gas in the gas cylinder of the auxiliary power system is used for supplementing pressure to the storage tank, so that the residual propellant is discharged.
Drawings
FIG. 1 is a schematic view of a pressure supplementing and air sealing system for a vertical recovery rocket tank according to the present invention.
Description of the symbols: 1-a charging and discharging hand valve, 2-a gas bottle, 3-a filter, 4-an auxiliary power system main path electromagnetic valve, 5-a pressure reducing valve, 6-an auxiliary power system branch path electromagnetic valve, 7-a thrust chamber, 8-an oxidant tank pressure supplementing electromagnetic valve, 9-a pore plate, 10-a gas sealing electromagnetic valve, 11-a fuel tank pressure supplementing electromagnetic valve, 12-an oxidant tank ground pressure boosting one-way valve, 13-an oxidant tank exhaust pipe gas sealing one-way valve, 14-an oxidant tank exhaust valve control cavity gas sealing one-way valve, 15-an oxidant tank exhaust valve, 16-a fuel tank ground pressure boosting one-way valve, 17-a fuel tank exhaust valve control cavity gas sealing one-way valve, 18-a fuel tank exhaust pipe gas sealing one-way valve, 19-a fuel tank exhaust valve, 20-an oxidant tank, 21-a fuel tank, 22-oxidizer tank vent line, 23-fuel tank vent line.
Detailed Description
In order to facilitate the understanding of the present invention, the following description is further made with reference to specific examples.
The utility model provides a pressure supplementing and air sealing system for a vertical recovery rocket storage tank, which comprises an auxiliary power system, wherein the auxiliary power system sequentially comprises an air bottle, an auxiliary power system main path electromagnetic valve, a pressure reducing valve and a plurality of thrust chambers along the air supply direction of an auxiliary power system pipeline;
and a branch pipeline is arranged between the gas cylinder and the main electromagnetic valve of the auxiliary power system and is connected with and supplies gas to the pressure supplementing system and the gas sealing system of the storage tank through pipelines.
The branch pipe is controlled by an electromagnetic valve to be respectively communicated with a storage tank pressure supplementing system and a storage tank air sealing system, and the storage tank comprises an oxidant tank and a fuel tank. In this embodiment, the oxidant is oxygen and the fuel is methane.
The system is specifically designed as shown in FIG. 1;
and a pipeline between the branch pipeline and the oxidant tank is provided with an oxidant tank pressure supplementing electromagnetic valve, and a pipeline between the oxidant tank pressure supplementing electromagnetic valve and the oxidant tank is also communicated with a ground pressure boosting gas pipeline and is provided with a ground pressure boosting one-way valve.
An oxidant tank pressure supplementing electromagnetic valve is arranged between the branch pipeline and the oxidant tank, a pipeline between the oxidant tank pressure supplementing electromagnetic valve and the oxidant tank is also communicated with an oxidant tank ground pressurization pipeline, and an oxidant tank ground pressurization one-way valve is arranged on the oxidant tank ground pressurization pipeline.
The pipeline between the branch pipeline and the fuel tank is provided with a fuel tank pressure supplementing electromagnetic valve, the pipeline between the fuel tank pressure supplementing electromagnetic valve and the fuel tank is also communicated with a fuel tank ground pressurization pipeline, and the fuel tank ground pressurization pipeline is provided with a fuel tank ground pressurization one-way valve.
The pipeline between the branch pipeline and the oxidant tank is provided with a gas seal electromagnetic valve and an oxidant tank exhaust valve, and the pipeline between the gas seal electromagnetic valve and the oxidant tank exhaust valve is provided with an oxidant tank exhaust pipe gas seal one-way valve and an oxidant tank exhaust valve control cavity gas seal one-way valve in parallel, so that the control cavities in the oxidant tank exhaust pipe and the oxidant tank exhaust valve are respectively subjected to gas seal.
And a pipeline of the pressure supplementing system is finally introduced into the storage tank, and an energy dissipater is arranged at a gas outlet of the pipeline so as to reduce the impact force on liquid when gas enters.
The pipeline between the branch pipeline and the fuel agent tank is provided with a gas seal electromagnetic valve and a fuel tank vent valve, and the pipeline between the gas seal electromagnetic valve and the fuel tank vent valve is connected in parallel with a fuel tank vent pipe gas seal one-way valve and a fuel tank vent valve control cavity gas seal one-way valve to respectively perform gas seal on the fuel tank vent pipe and the control cavity inside the fuel tank vent valve.
On the main road of the auxiliary power system, a filter is also arranged in the pipeline between the gas cylinder and the branch pipeline, and an inflation and deflation hand valve is also arranged on the pipeline connected with the gas cylinder and used for controlling the inflation and deflation hand valve to inflate or deflate the gas cylinder.
The pipeline of the branch pipeline, the storage tank pressure supplementing system and the storage tank air sealing system are communicated with each other, a plurality of pore plates are further arranged in the pipeline, and the gas which is led to the storage tank and the air sealing system is throttled, so that the gas pressure is reduced.
In the using process of the system, the electromagnetic valve is opened according to the attitude control requirement, the gas of the high-pressure gas cylinder enters the thrust chamber, and the generated high-speed gas is sprayed out to generate thrust; opening an air seal electromagnetic valve on the rocket, and allowing air to enter an exhaust valve control cavity and an exhaust pipe for air seal through the air seal electromagnetic valve and an air seal one-way valve in sequence; and after the rocket lands, an electromagnetic valve on the pressure supplementing system is opened, and the residual gas in the gas cylinder of the auxiliary power system is used for supplementing pressure to the storage tank, so that the residual propellant is discharged. Utilize auxiliary power gas cylinder gas, control respectively with storage tank and atmoseal system intercommunication through bleeder route solenoid valve, both satisfied auxiliary power system attitude control demand, satisfied flight and landing back rocket atmoseal demand again, still satisfied the storage tank pressure supplement demand that releases the propellant after the rocket lands simultaneously, this system is simple easily to be built, need not to set up the gas cylinder of storage tank pressure supplement and atmoseal system alone, the overall complexity of driving system has been simplified, the total weight of the system is reduced, auxiliary power system gas cylinder gas utilization rate is high, rocket efficiency has been showing and has been promoted.

Claims (8)

1. A vertical recovery rocket storage tank pressure supplementing and air sealing system is characterized by comprising an auxiliary power system, wherein the auxiliary power system sequentially comprises an air bottle, an auxiliary power system main path electromagnetic valve, a pressure reducing valve and a plurality of thrust chambers along the air supply direction of an auxiliary power system pipeline;
and a branch pipeline is arranged between the gas cylinder and the main electromagnetic valve of the auxiliary power system and is connected with and supplies gas to the pressure supplementing system and the gas sealing system of the storage tank through pipelines.
2. A vertical recovery rocket tank pressure and air seal system as recited in claim 1, wherein said branch lines are controlled by solenoid valves to communicate with a tank pressure supplementing system and a tank air seal system, respectively, said tanks including an oxidizer tank and a fuel tank.
3. The vertical recovery rocket tank pressure supplementing and air sealing system according to claim 1, wherein said pipeline between said branch pipeline and said oxidizer tank is provided with an oxidizer tank pressure supplementing solenoid valve, said pipeline between said oxidizer tank pressure supplementing solenoid valve and said oxidizer tank is further communicated with an oxidizer tank ground pressurization pipeline, and said oxidizer tank ground pressurization pipeline is provided with an oxidizer tank ground pressurization check valve.
4. The vertical recovery rocket tank pressure compensating and air sealing system as recited in claim 1, wherein a tank pressure compensating solenoid valve is disposed on the pipeline between said branch pipeline and the fuel tank, the pipeline between the tank pressure compensating solenoid valve and the fuel tank is further communicated with a tank ground pressurization pipeline, and a tank ground pressurization check valve is disposed on the tank ground pressurization pipeline.
5. The vertical recovery rocket tank pressure compensating and air sealing system as recited in claim 1, wherein said pipeline between said branch pipeline and said oxidizer tank is provided with an air sealing solenoid valve and an oxidizer tank exhaust valve, and said pipeline between said air sealing solenoid valve and said oxidizer tank exhaust valve is provided with an oxidizer tank exhaust pipe air sealing check valve and an oxidizer tank exhaust valve control cavity air sealing check valve in parallel, for respectively air sealing the control cavities inside said oxidizer tank exhaust pipe and said oxidizer tank exhaust valve.
6. The vertical recovery rocket tank pressure compensating and air sealing system as recited in claim 1, wherein a pipeline between said branch pipeline and the fuel agent tank is provided with an air sealing solenoid valve and a fuel tank vent valve, and a pipeline between the air sealing solenoid valve and the fuel tank vent valve is provided with a fuel tank vent pipe air sealing one-way valve and a fuel tank vent valve control cavity air sealing one-way valve in parallel, respectively performing air sealing on control cavities inside the fuel tank vent pipe and the fuel tank vent valve.
7. A vertical recovery rocket tank pressure supplementing and air sealing system as claimed in claim 1 wherein said auxiliary power system further comprises a filter in the main line between the gas cylinder and the branch line.
8. The vertical recovery rocket tank pressure and air seal system according to claim 1, wherein said branch pipeline is further provided with a plurality of perforated plates in the pipeline communicating with the tank pressure supplementing system and the tank air seal system.
CN202122613261.9U 2021-10-28 2021-10-28 Pressure supplementing and air sealing system for vertical recovery rocket storage tank Active CN216240987U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122613261.9U CN216240987U (en) 2021-10-28 2021-10-28 Pressure supplementing and air sealing system for vertical recovery rocket storage tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122613261.9U CN216240987U (en) 2021-10-28 2021-10-28 Pressure supplementing and air sealing system for vertical recovery rocket storage tank

Publications (1)

Publication Number Publication Date
CN216240987U true CN216240987U (en) 2022-04-08

Family

ID=80990259

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122613261.9U Active CN216240987U (en) 2021-10-28 2021-10-28 Pressure supplementing and air sealing system for vertical recovery rocket storage tank

Country Status (1)

Country Link
CN (1) CN216240987U (en)

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