阅读说明：本技术 一种过氧化氢煤油自增压动力系统 (Hydrogen peroxide kerosene self-pressurization power system ) 是由 不公告发明人 于 2020-07-07 设计创作，主要内容包括：本发明公开了一种过氧化氢煤油自增压动力系统,包括用于点火燃烧产生推力的推力室、用于向推力室提供过氧化氢的过氧化氢贮箱、用于向推力室提供煤油的煤油贮箱、用于向过氧化氢贮箱和煤油贮箱注入燃气的燃气发生器,过氧化氢贮箱还用于向燃气发生器提供过氧化氢；利用过氧化氢贮箱为燃气发生器提供过氧化氢,过氧化氢在燃气发生器内燃烧产生燃气注入过氧化氢贮箱和煤油贮箱内,为过氧化氢贮箱和煤油贮箱增压,然后将过氧化氢贮箱和煤油贮箱内的过氧化氢和煤油注入推力室内点火燃烧为发动机提供驱动力；系统集成度高,减轻了系统质量,提升了过氧化氢煤油动力系统的安全性与可维护性。(The invention discloses a hydrogen peroxide kerosene self-pressurization power system, which comprises a thrust chamber, a hydrogen peroxide storage tank, a kerosene storage tank and a fuel gas generator, wherein the thrust chamber is used for igniting and burning to generate thrust, the hydrogen peroxide storage tank is used for providing hydrogen peroxide to the thrust chamber, the kerosene storage tank is used for providing kerosene to the thrust chamber, the fuel gas generator is used for injecting fuel gas to the hydrogen peroxide storage tank and the kerosene storage tank, and the hydrogen peroxide storage tank is also used for providing hydrogen peroxide to the fuel gas generator; hydrogen peroxide is supplied to the fuel gas generator by the hydrogen peroxide storage tank, the hydrogen peroxide is combusted in the fuel gas generator to generate fuel gas, the fuel gas is injected into the hydrogen peroxide storage tank and the kerosene storage tank to pressurize the hydrogen peroxide storage tank and the kerosene storage tank, and then the hydrogen peroxide and the kerosene in the hydrogen peroxide storage tank and the kerosene storage tank are injected into the thrust chamber to be ignited and combusted to provide driving force for the engine; the system integration level is high, the system quality is reduced, and the safety and maintainability of the hydrogen peroxide kerosene power system are improved.)

1. A hydrogen peroxide kerosene self-pressurization power system is characterized by comprising:

a thrust chamber for generating thrust by ignition combustion;

a hydrogen peroxide reservoir for providing hydrogen peroxide to the thrust chamber;

a kerosene tank for supplying kerosene to the thrust chamber;

a fuel gas generator for injecting fuel gas into the hydrogen peroxide storage tank and the kerosene storage tank;

the hydrogen peroxide storage tank is also used for providing hydrogen peroxide to the gas generator.

2. The hydrogen peroxide kerosene self-pressurizing power system as claimed in claim 1, wherein the outlet end of the hydrogen peroxide storage tank is connected with the gas generator through a first hydrogen peroxide pipeline, and a first control valve and an electric pump are sequentially arranged on the first hydrogen peroxide pipeline along the flowing direction of the hydrogen peroxide.

3. The hydrogen peroxide kerosene self-pressurizing power system as claimed in claim 2, wherein a gas outlet pipeline for communicating the hydrogen peroxide storage tank and the kerosene storage tank is connected to an outlet of the gas generator, and a pressure sensor is arranged on the gas outlet pipeline.

4. The hydrogen peroxide kerosene self-pressurizing power system as claimed in claim 3, further comprising a controller, wherein said electric pump and said pressure sensor are electrically connected to said controller, respectively.

5. The hydrogen peroxide kerosene self-pressurization power system as claimed in claim 4, wherein a first gas pipeline and a second gas pipeline are connected in parallel on the gas outlet pipeline, and the first gas pipeline and the second gas pipeline are respectively connected with the hydrogen peroxide storage tank and the kerosene storage tank.

6. The hydrogen peroxide kerosene self-pressurizing power system as claimed in claim 5, wherein said first gas pipeline and said second gas pipeline are respectively provided with a first check valve and a second check valve.

7. The hydrogen peroxide kerosene self-pressurizing power system according to any one of claims 1 to 6, wherein said hydrogen peroxide storage tank is connected to said thrust chamber through a second hydrogen peroxide line, and a second control valve is provided on said second hydrogen peroxide line.

8. The hydrogen peroxide kerosene self-pressurization power system as claimed in claim 7, wherein a discharge pipeline is connected in parallel with the second hydrogen peroxide pipeline, and a third control valve is arranged on the discharge pipeline.

9. The hydrogen peroxide kerosene self-pressurizing power system according to claim 8, wherein said kerosene storage tank is connected to said thrust chamber through a kerosene line, said kerosene line being provided with a kerosene control valve.

10. The hydrogen peroxide kerosene self-pressurization power system as claimed in claim 1, wherein the hydrogen peroxide storage tank and the kerosene storage tank are respectively provided with a filling and discharging valve core in an integrated manner.

Technical Field

The invention belongs to the field of pump pressure type engines, and particularly relates to a hydrogen peroxide kerosene self-pressurization power system.

Background

The liquid rocket engine is an important foundation of the current carrier rocket and has important significance for space launching and deep space exploration tasks. In order to further reduce the launching cost and increase the launching frequency, new requirements are put forward on the reuse and convenience of the rocket engine; the hydrogen peroxide kerosene is used as a common propellant combination, has the characteristics of normal-temperature storage, no toxicity and no pollution, has the characteristics of high density specific impulse and easiness in storage, can bring convenience in storage and filling, and greatly shortens the emission preparation time, so that the research of a hydrogen peroxide kerosene power system is widely concerned.

For a power system with small thrust magnitude or small total impulse, a constant pressure extrusion scheme is generally adopted, namely, the constant pressure extrusion of a liquid propellant is realized through the combination of a gas cylinder, an isolation valve, a pressure reducing valve and the like, so that the effect of maintaining the stable work of the power system is achieved.

On the other hand, the scheme of the constant-pressure extrusion power system needs to carry a high-pressure gas cylinder, the high-pressure gas cylinder is poor in safety and use maintainability in the storage process, certain danger is brought to operating personnel, the use and maintenance cost is increased, and meanwhile, because normal-temperature gas is used for pressurization, the pressurization efficiency is low, the structural mass of the system is heavy, and the effective load mass of the aircraft is reduced.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a hydrogen peroxide kerosene self-pressurization power system, wherein hydrogen peroxide which is one of propellants is used as a pressurization medium, the system integration level is high, the safety of the hydrogen peroxide kerosene power system is improved, the use and maintenance cost is reduced, and the structural quality of the system is optimized.

In order to solve the technical problem, the invention provides a hydrogen peroxide kerosene self-pressurization power system, which comprises:

a thrust chamber for generating thrust by ignition combustion;

a hydrogen peroxide reservoir for providing hydrogen peroxide to the thrust chamber;

a kerosene tank for supplying kerosene to the thrust chamber;

a fuel gas generator for injecting fuel gas into the hydrogen peroxide storage tank and the kerosene storage tank;

the hydrogen peroxide storage tank is also used for providing hydrogen peroxide to the gas generator.

Furthermore, the outlet end of the hydrogen peroxide storage tank is connected with the fuel gas generator through a first hydrogen peroxide pipeline, and a first control valve and an electric pump are sequentially arranged on the first hydrogen peroxide pipeline along the flowing direction of the hydrogen peroxide.

Furthermore, a gas outlet pipeline communicated with the hydrogen peroxide storage tank and the kerosene storage tank is connected to an outlet of the gas generator, and a pressure sensor is arranged on the gas outlet pipeline.

Further, the device also comprises a controller, and the electric pump and the pressure sensor are respectively electrically connected with the controller.

Furthermore, a first fuel gas pipeline and a second fuel gas pipeline are connected to the fuel gas outlet pipeline in parallel, and the first fuel gas pipeline and the second fuel gas pipeline are respectively connected with the hydrogen peroxide storage tank and the kerosene storage tank.

Furthermore, a first check valve and a second check valve are respectively arranged on the first fuel gas pipeline and the second fuel gas pipeline.

Furthermore, the hydrogen peroxide storage tank is connected with the thrust chamber through a second hydrogen peroxide pipeline, and a second control valve is arranged on the second hydrogen peroxide pipeline.

Furthermore, a discharge pipeline is connected in parallel to the second hydrogen peroxide pipeline, and a third control valve is arranged on the discharge pipeline.

Furthermore, the kerosene storage box is connected with the thrust chamber through a kerosene pipeline, and a kerosene control valve is arranged on the kerosene pipeline.

Furthermore, the hydrogen peroxide storage tank and the kerosene storage tank are respectively provided with a filling and discharging valve core in an integrated manner.

The invention has the following beneficial effects:

the hydrogen peroxide storage tank is used for providing hydrogen peroxide for the thrust chamber and the fuel gas generator, the hydrogen peroxide is combusted in the fuel gas generator to generate fuel gas which is used as a pressurizing medium to be injected into the hydrogen peroxide storage tank and the kerosene storage tank to pressurize the hydrogen peroxide storage tank and the kerosene storage tank, then the hydrogen peroxide and the kerosene in the hydrogen peroxide storage tank and the kerosene storage tank are injected into the thrust chamber to be ignited and combusted to provide driving force for the engine, the pressurizing efficiency is high, and the total mass of a system structure is reduced; meanwhile, hydrogen peroxide which is one of the propellants is used as a self-pressurization medium, the system integration level is high, the system composition is optimized, a high-pressure gas cylinder is cancelled, the system quality is reduced, the operation risk and the use and maintenance cost caused by the high-pressure gas cylinder are avoided, the safety of a hydrogen peroxide kerosene power system is improved, and the use and maintenance performance of the system are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention:

FIG. 1 is a schematic diagram of a hydrogen peroxide kerosene self-pressurization power system in an embodiment;

Detailed Description

For a fuller understanding of the technical content of the present invention, reference should be made to the following detailed description taken together with the accompanying drawings.