Parallel wind tunnel extruding air supply system
A gas supply system and parallel technology, applied in aerodynamic tests, measuring devices, instruments, etc., can solve the problems of increasing the total mass of gas supply, prolonging the time of gas supply, and low maintenance costs, achieving low maintenance costs and easy operation , High reliability effect
Inactive Publication Date: 2016-10-12
INHALE HYPERSONIC TECH RES CENT UNIT 63820 OF PLA
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[0005] The invention provides a parallel wind tunnel extrusion air supply system. The parallel wind tunnel extrusion air supply system adopts two or more extrusion air supply The parallel structure of gas devices can solve the technical problem of increasing the total mass of gas supply per unit time (two or more extrusion gas supply devices work at the same time), and can also solve the problem of increasing the gas supply time by extending the gas supply time under constant gas supply flow. The technical problem of increasing the total quality of air supply (two or more extrusion air supply devices work in sequence); and it has the characteristics of high reliability, convenient operation and low maintenance cost
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[0020] A parallel wind tunnel extrusion air supply system, such as figure 2 As shown, it includes two or more extruded air supply devices, the two or more extruded air supply devices are connected in parallel, and two or more extruded air supply devices are connected in parallel to each other and adopt A unified working gas source provides working gas, and a unified compensation gas source provides compensation gas.
[0021] In the above technical scheme, the single extruding air supply device includes a small cylinder 2, a large cylinder 8, a small piston 3, and a large piston 7, the small piston 3 is arranged in the small cylinder 2, the large piston 7 is arranged in the large cylinder 8, and the small piston 3 and the large piston 7 are connected by a connecting rod 4, a damping liquid chamber 6 is formed between the large and small pistons and connected to the liquid damping source through the damping hole 5, the small cylinder 2 above the small piston 3 is connected to t...
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The invention discloses a parallel wind tunnel extruding air supply system, and belongs to the technical field of pulse combustion wind tunnels. The system employs a mutual parallel structure of two or more extruding air supply devices on the basis that the structure size of a conventional extruding air supply device is not changed, can solve a technical problem of increasing the total weight of supplied air in a unit time (when two or more extruding air supply devices work the same time), and can solve a technical problem of increasing the total weight of supplied air under a constant air supply flow through extending the air supply time (when two or more extruding air supply devices work sequentially). Moreover, the system is high in reliability, is convenient to operate, and is low in maintenance cost.
Description
technical field [0001] The invention belongs to the technical field of pulse combustion wind tunnels, and in particular relates to a squeeze air supply device for pulse combustion wind tunnels. Background technique [0002] Pulse combustion wind tunnels are widely used in the field of air-breathing hypersonic research, and have the advantages of low construction and operation costs, simple systems, convenient maintenance, and short construction periods. The extrusion gas supply device is one of the key devices to realize the pulse combustion wind tunnel. It is mainly used for the quantitative and constant pressure supply of oxygen, hydrogen, methane and other special gases. Notable features. [0003] The existing extruding air supply device is a double-piston extruding device, and its structure is as follows: figure 1 As shown, it includes a small cylinder 2, a large cylinder 8, a small piston 3, and a large piston 7. The small piston 3 is arranged in the small cylinder 2,...
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IPC IPC(8): G01M9/04
CPCG01M9/04
Inventor 刘伟雄毛雄兵曾令国李向东马宏祥伍军王洪亮从京伟林其陈军王振峰
Owner INHALE HYPERSONIC TECH RES CENT UNIT 63820 OF PLA