Large-flow liquid oxygen alcohol water vapor generator

Abstract

The invention relates to a large-flow liquid oxygen alcohol water vapor generator which is composed of a head part and a body part, the working medium is liquid oxygen, alcohol and water, and ignition is carried out by an igniter which is arranged at the head part center specially; the liquid oxygen and the alcohol respectively enter a liquid oxygen chamber and an alcohol chamber through a liquidoxygen entry nozzle and an alcohol entry nozzle which are arranged at the outer bottom and the middle bottom, and enter a combustion chamber for combustion through a liquid-liquid coaxial centrifugalspray nozzle arrayed in a concentric circle mode, and initial high-temperature gas is generated; water enters the generator by dividing into four cross sections, water of the first three cross section enters a water collecting liquid chamber from the front end water inlet nozzle of each section of the body part, and enters the combustion chamber through a cooling ring with a tangential hole, thusa liquid film is formed, inner cooling is carried out on each section of the body part; and most of the water enters the liquid collecting chamber from the entry nozzle at the middle part of the section III of the body part, is sprayed into the liquid collecting chamber through a direct flow hole arranged behind the throat part, and is subjected to mixing and heat exchanging with the high-temperature gas generated from the head part, thus the required vapor is generated.

Description

Technical field [0001] The invention relates to a three-component liquid propelling gas generator, in particular to a large-flow liquid oxygen alcohol steam generator, which can provide ejection gas for ground ejection systems, and can also provide certain pressure and temperature for other special equipment Of water vapor. Background technique [0002] When the high-altitude engine is on the ground, it is usually necessary to place the engine in a sealed cabin, and use a vacuum ejector to keep the nozzle outlet in a low pressure state during the operation of the engine in the sealed cabin to ensure full flow of the nozzle. The ejector needs water vapor as the ejection working medium. A certain engine site needs to provide water vapor with a temperature of 250°C, a pressure of 2MPa, and a mass flow of 80t / h. If the traditional boiler method is used to produce steam, the system is huge, complicated, and costly. Therefore, a large-flow liquid oxygen alcohol steam generator is nee...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a large-flow liquid oxygen alcohol steam generator, which solves the technical problems of large, complex and high-cost existing steam generator systems

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