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Supercooled liquid methane self-circulation online preparation system and method based on pressurization temperature control

A preparation system and self-circulation technology, which is applied in the field of self-circulation online preparation system of subcooled liquid methane based on supercharged temperature control, can solve the problems of unable to achieve stable output and affect engine performance, and achieve the effect of maintaining temperature and stable output

Active Publication Date: 2021-12-31
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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Problems solved by technology

[0004] Aiming at the problem that the existing liquid methane cannot achieve stable output when it is supercooled, thereby affecting the performance of the engine, the present invention provides a supercooled liquid methane self-circulation online preparation system and method based on pressurization and temperature control

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  • Supercooled liquid methane self-circulation online preparation system and method based on pressurization temperature control
  • Supercooled liquid methane self-circulation online preparation system and method based on pressurization temperature control

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0023] The present invention provides a system and method for supercooled liquid methane self-circulation online preparation based on pressurization and temperature control. The system and method can realize rapid on-line preparation of 95K supercooled liquid methane. The system is based on the principle of self-circulation and has an automatic adjustment function. Self-circulation preparation is realized through automatic control of liquid level, pressure and temperature, which provides the basis for the development of subsequent fully subcooled propellant rocket engines.

[0024] Such as figure 1 As shown, the supercooled li...

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Abstract

The invention provides a supercooled liquid methane self-circulation online preparation system and method based on pressurization temperature control, and mainly solves the problems that the preparation efficiency is low, stable output cannot be realized and the performance of an engine is influenced during existing liquid methane supercooling. The system comprises a liquid nitrogen supply unit and a methane supercooling unit, the liquid nitrogen supply unit comprises a liquid nitrogen supply container, a liquid nitrogen filling pipeline, a liquid nitrogen conveying pipeline and a liquid nitrogen supply deflation pipeline; and the methane supercooling unit comprises a heat exchange container, a heat exchange pressurization pipeline, a heat exchange deflation pipeline, a heat exchanger, a heat exchange heating pipeline, a heat exchange heating exhaust pipeline, a methane filling pipeline and a supercooled methane output pipeline. By means of the supercooled liquid methane self-circulation online preparation system, the liquid nitrogen supply unit mainly provides cooling liquid nitrogen, and the methane supercooling unit is mainly used for cooling liquid methane.

Description

technical field [0001] The invention relates to the field of supercooled liquid methane preparation, in particular to an on-line supercooled liquid methane self-circulation preparation system and method based on pressurization and temperature control. Background technique [0002] With the development of aerospace technology, cryogenic propellants are transitioning from liquid hydrogen / liquid oxygen and liquid oxygen / kerosene combinations to liquid methane / liquid oxygen combinations. As a low-temperature rocket fuel, liquid methane has the following characteristics: 1) It is easy to liquefy, and the production and storage costs are low; 2) The density of liquid methane is higher than that of liquid hydrogen, and the volume of fuel with the same energy is smaller; 3) The combustion product is clean when liquid methane is burned , The specific impulse is also slightly higher than that of liquid oxygen / kerosene, which can make the low temperature engine reused. Because liquid ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J1/02C07C9/04
CPCF25J1/0263C07C9/04F25J2215/60
Inventor 高强高炎郭立王朝蔡琳张萌雷鸣
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST
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