A multi-spacing double-air-liquid coaxial centrifugal nozzle test device
A technology of centrifugal nozzle and test device, which is applied in the direction of measuring device, testing of mechanical parts, testing of machine/structural parts, etc., can solve the problems of single spacing, complex structure, inconvenient replacement, etc., to achieve easy disassembly and assembly, and improve economic efficiency. , to avoid the effect of repetitive processing
Active Publication Date: 2021-07-20
XIAN AEROSPACE PROPULSION INST
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Problems solved by technology
[0005] The purpose of the present invention is to provide a multi-spaced double-air-liquid coaxial centrifugal nozzle test device to overcome the problems of the existing double-air-liquid coaxial centrifugal nozzle test device with complex structure, single distance and inconvenient replacement
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[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention and the accompanying drawings. Apparently, the described embodiments do not limit the present invention.
[0030] Such as Figure 1 to Figure 6 As shown, a multi-pitch dual gas-liquid coaxial centrifugal nozzle test device in this embodiment includes an upper casing 1 and a lower casing 2, and the lower casing 2 is detachably mounted on the upper casing 1;
[0031] The top surface of the upper shell 1 is provided with a liquid collection cavity 6, an air inlet straight joint 8 and a gas path pressure measurement joint 10, the cross section of the liquid collection cavity 6 is rectangular, the opening of the liquid collection cavity 6 is downward, and the liquid collection A liquid collection chamber 3 is formed between the chamber body 6 and the upper casing 1, and the liquid collection chamber 6 is provided with a ...
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The invention relates to a centrifugal nozzle test device, in particular to a multi-distance double-air-liquid coaxial centrifugal nozzle test device to solve the problems of the existing double-air-liquid coaxial centrifugal nozzle test device with complex structure, single distance and inconvenient replacement. The technical scheme adopted in the present invention is: a test device for multi-spaced double gas-liquid coaxial centrifugal nozzles, including an upper shell and a lower shell; The liquid collection chamber with the opening downwards and the upper shell forms a liquid collection chamber, and the liquid collection chamber is provided with a liquid inlet straight-through joint and a liquid pressure measurement joint connected with it; the bottom surface of the liquid collection chamber There are N nozzle mounting holes on the upper shell, and 2 nozzle mounting holes are installed with centrifugal nozzles. A gas collection chamber is formed between the groove on the top surface of the lower shell and the bottom surface of the upper shell, and the air intake is through the joint. Both the pressure measuring joint and the gas path are connected with the gas collection chamber, and the bottom surface of the groove is provided with an air outlet corresponding to the two nozzle installation holes.
Description
technical field [0001] The invention relates to a centrifugal nozzle test device, in particular to a multi-space double-air-liquid coaxial centrifugal nozzle test device. Background technique [0002] The liquid-centered air-liquid coaxial centrifugal nozzle has good atomization performance and adaptability to working conditions. The liquid-centered air-liquid coaxial centrifugal nozzle is obtained in RL10-A, RD-57, YF-73, YF-75 and other engines. It has been widely used, and it is also an alternative application scheme in liquid oxygen-methane engines and gas-oxygen-kerosene detonation engines. This nozzle is composed of a liquid center centrifugal nozzle and a coaxial gas direct-flow annular seam. According to the state of the oxidant and fuel, two propellant combinations of "liquid oxygen-gas combustion" and "gas oxygen-liquid combustion" can be selected. [0003] Atomization is the basis of combustion, and atomization quality is one of the key criteria for nozzle perfor...
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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 夏益志严宇尚帅陈宏玉洪流
Owner XIAN AEROSPACE PROPULSION INST