Conventional hypersonic wind tunnel device and plenum chamber air flow heating process thereof
A hypersonic, high-pressure airflow technology, applied in measuring devices, aerodynamic tests, instruments, etc., can solve the problems of high power consumption and increased test costs, and achieve the reduction of preheating power consumption, process energy saving, and flexible temperature control Effect
Pending Publication Date: 2018-01-05
江苏同益能源科技有限公司
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Problems solved by technology
Among them, the electrothermal type is often used in conventional hypersonic wind tunnel preheating methods due to its advantages of fast heating speed, no pollution, and easy control; but the electrothermal type mainly consumes electric energy and converts electric energy into heat energy to heat the airflow , its heating power is about 50MW, which consumes a lot of electric energy, resulting in an increase in the cost of the experiment, and urgently needs to be improved.
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Embodiment Construction
[0032] The technical solution of the present invention will be clearly and completely described below.
[0033] like figure 1 As shown, a conventional hypersonic wind tunnel device includes:
[0034] A compressor unit, which is used to compress clean air to form a high-pressure air flow;
[0035] The resident chamber, which is connected to the output end of the compressor unit, is used to stabilize the high-pressure air flow;
[0036] a heating device, the heating device is used to heat the high-pressure air in the resident room;
[0037] A stable section and a test section, the stable section rectifies the high-pressure airflow heated by the heating device and then outputs it to the test section, and the wind tunnel test is carried out in the test section.
[0038] Further, the heating device includes:
[0039] A heat pump unit, connected to the chamber through pipes and valves, is used to preheat the compressed air flow;
[0040] The reheater, connected to the output en...
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The invention provides a conventional hypersonic wind tunnel device and a plenum chamber air flow heating process thereof. The conventional hypersonic wind tunnel device comprises a compressor unit for compressing clean air to form a high pressure air flow, a plenum chamber connected with the output end of the compressor unit for stabilizing the high pressure air flow, a heating device for heatingthe high pressure air inside the plenum chamber, and a test section for a wind tunnel test. A heat pump technology is used to reduce pre-heating power consumption of an experimental air flow, the whole process is energy-saving, and the experimental cost is low, a heat pump unit and an electric heating mode are high in heat transfer efficiency, and the temperature control is more flexible.
Description
technical field [0001] The invention relates to the fields of aerodynamics and thermodynamics, in particular to a conventional hypersonic wind tunnel device and a chamber airflow heating process thereof. Background technique [0002] A wind tunnel is a wind tunnel laboratory, which is a wind tunnel in which the Mach number M of the airflow in the experimental section of the wind tunnel is between 5 and 14, which is artificially generated and controlled. [0003] Jiang Zonglin, a researcher at the Institute of Mechanics of the Chinese Academy of Sciences, created the hypersonic speed reproduction wind tunnel technology and successfully developed the JF12 reproduction wind tunnel. The first Asian scholar to receive the award in many years. [0004] In a hypersonic wind tunnel, the high-pressure air flow accelerates and expands to form a high Mach air flow, which is also accompanied by a sharp drop in air temperature, resulting in condensation of the experimental air flow in t...
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IPC IPC(8): G01M9/02G01M9/04
Inventor 敬成君蒋斌刘东
Owner 江苏同益能源科技有限公司