Carbon dioxide high-enthalpy incoming flow generating device

Abstract

The invention discloses a carbon dioxide high-enthalpy incoming flow generating device and belongs to the field of aerospace technologies. With the carbon dioxide high-enthalpy incoming flow generating device adopted, the technical problems of small carbon dioxide saturated vapor pressure change range, low temperature reduction amplitude and high consumption of an existing high-enthalpy incoming flow generating device can be solved. The carbon dioxide high-enthalpy incoming flow generating device provided by the invention includes a carbon dioxide supply unit, a high-enthalpy incoming flow generation unit, and an air supply unit which is used for preheating the high-enthalpy incoming flow generation unit; the carbon dioxide supply unit is communicated with the first end of a first three-way valve through a first pipeline; the second end of the first three-way valve is communicated with the high-enthalpy incoming flow generation unit through a second pipeline; and the third end of the first three-way valve is communicated with the air supply unit through a third pipeline. With the carbon dioxide high-enthalpy incoming flow generating device adopted, the range of carbon dioxide saturated vapor pressure change is narrow, temperature reduction amplitude can be decreased, and the consumption of carbon dioxide can be decreased.

Description

technical field [0001] The present application relates to the field of aerospace technology, in particular to a carbon dioxide high enthalpy incoming flow generating device. Background technique [0002] The magnesium powder / carbon dioxide ramjet engine is a powder fuel engine used for flying in the Martian atmosphere. Before actual use, a ground test of the magnesium powder / carbon dioxide ramjet engine is required. The test needs to simulate the flow conditions of the aircraft in the Martian atmosphere . However, at present, there are problems such as a wide variation range of the saturated vapor pressure of carbon dioxide and a large temperature drop caused by throttling and expansion of carbon dioxide gas when generating high influx; moreover, most carbon dioxide high-enthalpy devices directly use carbon dioxide in the preheating stage, resulting in massive consumption of carbon dioxide gas. [0003] Therefore, how to provide a high-enthalpy incoming flow generator and ...

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Problems solved by technology

[0004] The purpose of this application is to provide a high-enthalpy incoming flow generating device and a high-enthalpy incoming flow generator, to a certain extent solve the problem of the existing high-enthalpy incoming flow with small variation range of saturated vapor pressure of carbon dioxide, low temperature drop and reduced consumption. A technical problem with the device

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