A variety of gas source supply device for high pressure and large flow gas experiment

Abstract

The invention relates to a various air source feeding device for high-pressure large-flow gas experiment. The various air source feeding device comprises a gas delivery loop, gas state control equipment and a gas parameter collecting system, wherein the gas delivery loop comprises a gas cylinder; an outlet of the gas cylinder is connected with a gas inlet of a testing section through a pipeline; the gas state control equipment comprises a high-pressure stop valve, an electric decompressing valve and an electric heater arranged on a connecting pipeline between the gas cylinder and the testing section, and an electric control valve arranged at an outlet of the testing section; and the gas parameter collecting system comprises a pressure sensor I for collecting the outlet pressure of the gascylinder, a pressure sensor II for collecting the inlet pressure of gas in the testing section, a temperature sensor I for collecting the temperature of the gas before being heated by the electric heater, a temperature sensor II for collecting the temperature of the gas after being heated by the electric heater, a flowmeter for collecting the inlet flow of the gas in the testing section and a datacollecting and displaying device. Through the adoption of the various air source feeding device disclosed by the invention, high-back pressure, high-flow and multi-gas kind testing environments can be provided.

Description

technical field [0001] The invention belongs to the technical field of flow and heat transfer experiments, in particular to a multiple gas source supply device for high-pressure and large-flow gas experiments. Background technique [0002] Various types of gas sources (such as nitrogen, air, carbon dioxide, etc.) are necessary when the laboratory conducts experimental testing and research on aerodynamics, heat transfer, and flow resistance. Type, pressure and flow requirements vary widely. The current commonly used air sources mainly have the following deficiencies. For example, the air supply by the fan can achieve a large flow rate but cannot achieve high pressure, and the gas type cannot be changed; The type of gas cannot be changed; the integrated gas supply of the compressor and the gas storage tank can achieve high pressure and large flow, but the high-pressure gas storage tank is expensive, and it takes a certain period of time to store the gas before the experiment,...

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Problems solved by technology

[0003] In order to overcome the deficiencies in the gas source supply technology in the above-mentioned existing experimental tests, the purpose of the present invention is to provide a variety of gas source supply devices for high-pressure and large-flow gas experiments, which have large gas flow, high pressure, and low cost.

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