Cooling water distribution device for high-Mach-number spray pipe of conventional hypersonic wind tunnel
A hypersonic, high Mach number technology, applied in the direction of measuring devices, machine/structural parts testing, instruments, etc., can solve the problems of cumbersome installation, long cycle, high cost of cooling water supply system, etc., to achieve simple matching and reduce investment The effect of cost, operation and maintenance convenience
Active Publication Date: 2022-03-29
中国空气动力研究与发展中心超高速空气动力研究所
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Problems solved by technology
[0011] d. The cost of the cooling water supply system is high, and the installation is cumbersome and the cycle is long
Method used
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Embodiment 1
[0056] The nozzle of the present embodiment is a high Mach number nozzle of the order of 1 meter, such as figure 1 , figure 2 , Figure 4 As shown, the nozzle is divided into five sections, namely nozzle throat section I1, nozzle throat section II2, nozzle diffusion section I3, nozzle diffusion section II4, and nozzle diffusion section III5. The nozzle sections that need to be cooled are The 4 sections are nozzle throat section Ⅰ1, nozzle throat section Ⅱ2, nozzle diffusion section Ⅰ3 and nozzle diffusion section Ⅱ4, and 4 cooling circulation pipelines are configured accordingly.
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The invention belongs to the field of hypersonic wind tunnel test equipment, and discloses a cooling water distribution device for a high-Mach-number spray pipe of a conventional hypersonic wind tunnel. The distribution device adopts a set of high-pressure cooling water supply system, realizes the distribution of cooling water pressure and flow through the inlet water distributor and the inlet water flow adjusting throat, not only meets the requirements of cooling water in the nozzle throat section water channel on medium-high pressure and high flow speed, but also meets the requirements of cooling water in the nozzle diffusion section water channel on low pressure, low flow speed and high flow speed. And the requirement that cooling water flows in the interlayer is met. The distribution device meets different requirements of high-pressure cooling of a throat section and low-pressure cooling of a diffusion section of a high-Mach-number spray pipe of a conventional hypersonic wind tunnel, the complexity of a cooling water supply system of the high-Mach-number spray pipe is simplified, the simplicity and convenience of operation and maintenance are improved, and the development cost is reduced. And the device can be popularized and applied to equipment needing cooling of different pressure grades at similar different positions.
Description
technical field [0001] The invention belongs to the field of hypersonic wind tunnel test equipment, and in particular relates to a cooling water distribution device for high Mach number nozzles of conventional hypersonic wind tunnels. Background technique [0002] The nozzle is the core component of the hypersonic wind tunnel. It is an important part of the wind tunnel to ensure a certain Mach number and a certain uniformity of airflow. , conventional hypersonic wind tunnel nozzles must meet long-term use requirements. [0003] Total operating temperature T of high Mach number nozzle in conventional hypersonic wind tunnel 0 Up to over 800°C, operating pressure P 0 The maximum is 12MPa, the running time is more than 30 seconds, and the nozzle needs to be cooled. If the nozzle cooling measures are not considered or the cooling water flow and pressure do not match, the nozzle will have material ablation, deformation and other problems during operation, which will cause uneve...
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IPC IPC(8): G01M9/04
CPCG01M9/04
Inventor 范孝华孙启志杨波陈映东凌岗巣根明
Owner 中国空气动力研究与发展中心超高速空气动力研究所
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