Integral gas heating device

Abstract

The invention provides an integral gas heating device, and belongs to the technical field of fuel spray and combustion visualization experiment research devices. The device comprises a heater shell and an end cover, wherein the end cover is fixedly connected with the heater shell, a heating core is arranged in the heater shell, and a gas inlet and a gas outlet in the heater shell form a gas flow channel with the heating core inside the heater shell. According to the device, the time required in the gas heating process is shortened, and rapid and uniform heating of the gas is realized; the limit on the constant volume bomb material structure through a traditional heating mode and the influence on the experiment through an object generated in the heating process are avoided; the service lifeof silicon carbon rods is prolonged, and the temperature of the gas in the heating device can be accurately monitored; the number and arrangement mode of the silicon carbon rods, high-temperature alloy sheets and gaskets can be adjusted according to actual needs; and the internal structure of the constant volume bomb is simplified, the arrangement flexibility of the combustion and spray visualization experiment system is enhanced, so that the modular arrangement of the whole system is realized, and the application prospect of the system is expanded.

Description

technical field [0001] The invention relates to an integral gas heating device, which belongs to the technical field of fuel spray and combustion visualization experimental research devices. Background technique [0002] Ambient gas temperature is an important parameter in the study of fuel spray and combustion process, and the ambient gas temperature must be controlled when performing fuel spray and combustion visualization experiments in constant volume incendiary bombs. The existing gas heating devices for constant-volume incendiary bombs include the following categories: (a) Electric heating type: many constant-volume incendiary bombs use electric heating, and this heating method is to arrange heating rods at the bottom of the constant-volume incendiary bombs , or in a constant volume incendiary bomb with a heating wire, this heating method will lead to uneven temperature distribution in the constant volume incendiary bomb, which will interfere with the accuracy of the e...

AI Technical Summary

Problems solved by technology

The existing gas heating devices for constant-volume incendiary bombs include the following categories: (a) Electric heating type: many constant-volume incendiary bombs use electric heating, and this heating method is to arrange heating rods at the bottom of the constant-volume incendiary bombs , or in a constant volume incendiary bomb with a heating wire, this heating method will lead to uneven temperature distribution in the constant volume incendiary bomb, which will interfere with the accuracy of the experiment, and the heating speed and power of this heating method are not easy to adjust; (b ) Constant volume bomb wall heating type: some constant volume incendiary bombs adopt the method of wall heating, and the heating tape is evenly wound on the surface of the constant volume incendiary bomb

To achieve the high temperature required in the constant volume incendiary bomb, this heating method will cause the wall temperature of the constant volume incendiary bomb to be too high, which has high requirements for the metal material of the constant volume incendiary bomb, and the excessive wall temperature may damage the Window glass of a constant volume incendiary bomb with a window; (c) Gas combustion type: The gas combustion type heating device is to pass combustible gas into the constant volume incendiary bomb for combustion to quickly reach high temperature and high pressure. This heating method requires accurate calculations. The generated products will also interfere with the experiment itself, and at the same time, the combustion products may adhere to the surface of the window glass, which not only affects the vision, but also causes damage to the glass

[0003] To sum up, the electric heating method is safe and fast, but there is a problem of uneven heating; the wall heating method can make the temperature distribution in the bomb more uniform, but it has higher requirements for the bomb material, and there are certain safety hazards; Gas combustion heating will interfere with the experimental results and may cause damage to the window glass

Images