A fuel droplet ignition temperature measurement device for visualization experiments

Abstract

The invention discloses a fuel droplet ignition temperature measuring device for visible experiments and belongs to the technical field of combustion experiment equipment. According to the ignition temperature measuring device disclosed by the invention, four ignition columns in symmetric distribution are arranged in a combustion chamber; the four ignition columns encircle a rectangular structure;two ignition wire fastening devices distributed at an interval are arranged on each ignition column; four arc-shaped ignition wires in symmetric distribution are mounted among the four ignition columns through the ignition wire fastening devices in a fastened manner; a through hole through which a combustion sample push mechanism penetrates is formed in one side of the combustion chamber; the push direction of the combustion sample push mechanism is parallel to the plane of the arc-shaped ignition wire and is along the central line of the four arc-shaped ignition wires. By adopting the devicedisclosed by the invention, an ignition process has good stability, the device can be repeatedly used for multiple times according to demands, high stability can be effectively maintained in a repeated use process, and precision of experiment results can be ensured.

Description

technical field [0001] The invention belongs to the technical field of combustion experiment equipment, and more specifically relates to a visualization device applied to the research on fuel solid, liquid and solid-liquid mixed combustion mechanism. Background technique [0002] With the continuous development of new energy sources, a variety of high-energy fuels have appeared, and their phases also have a variety of states. The ignition process of high-energy fuels is of great significance for their application in combustion and propulsion and for revealing the combustion mechanism of high-energy fuels. At present, the ignition methods used in the research of high-energy fuel combustion mainly include: chemical ignition, gunpowder ignition, laser ignition and electric ignition. Among them, using chemical ignition, the device is more complicated, there are many components, and it is not conducive to simplifying the system, and the use of igniter needs to select the appropri...

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Problems solved by technology

[0004] For example, the Chinese patent application number is 201110110037.6, and the name of the invention is: new experimental ignition device. The device in this application also uses electric ignition to ignite high-energy fuel, but the research object of this device is relatively single, only solid high-energy fuel, and Although the ignition means of this device is electric heating, the controllability of the heating temperature is low. For the situation that the heating temperature may change under different experimental conditions, the temperature control is troublesome, which affects the accuracy of the experimental results.

In addition, the application with the patent number ZL99245415.8 discloses a new type of tube-type high-temperature furnace, but the resistance wire will affect the observation effect during the electric heating process using the device of the application, and the projection status of the samples in the furnace cannot be observed. And the relevant parameters of the synchronization test

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