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Visual experiment device suitable for low-temperature gas-liquid two-phase mixing

A test device, gas-liquid technology, applied in the field of low-temperature gas-liquid two-phase mixing visual test device, to achieve the effects of easy disassembly, reduced installation difficulty, and simple processing

Active Publication Date: 2015-05-20
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems of existing visualization devices and the characteristics of low-temperature fluids, the present invention proposes a visualization test device suitable for low-temperature gas-liquid two-phase mixing

Method used

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  • Visual experiment device suitable for low-temperature gas-liquid two-phase mixing
  • Visual experiment device suitable for low-temperature gas-liquid two-phase mixing
  • Visual experiment device suitable for low-temperature gas-liquid two-phase mixing

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Embodiment Construction

[0027] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0028] The invention provides a visual test device suitable for low-temperature gas-liquid two-phase mixing. The low temperature generally refers to low-temperature liquids with a temperature range from 20K to 90K, such as liquid oxygen, liquid nitrogen, and liquid hydrogen. The visualization test device such as figure 1 As shown, it mainly includes upper nozzle 1, lower nozzle 11, gas inlet pipe 2, upper sealing flange tooling 3, lower sealing flange tooling 9, connecting screw 4, inner glass tube 5, outer glass tube 6 And the vacuum tube 10 also includes a sealing gasket 7 and a sealing ring 8.

[0029] The inner glass tube 5 and the outer glass tube 6 are connected to the upper sealing flange tooling 3 and the lower sealing flange tooling 9 through radial sealing, and the radial sealing position is sealed by a sealing ring 8, like Figure 1A . ...

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Abstract

The invention discloses a visual experiment device suitable for low-temperature gas-liquid two-phase mixing and belongs to the field of gas-liquid two-phase flow. The visual experiment device comprises an upper filler neck, a lower filler neck, a gas intaking pipe, an upper sealing flange tool, a lower sealing flange tool, a connecting screw, an inner-layer glass tube, an outer-layer glass tube and a vacuum tube, and further comprises a sealing washer and a sealing ring. Two ends of the inner-layer glass tube and two ends of the outer-layer glass tube are connected to the upper sealing flange tool and the lower sealing flange tool in a radial sealing manner, an air inlet of the inner-layer glass tube adopts a drilling manner and is simply processed, and furthermore, the problems of difficulty in controlling the precision due to welding of an intake pipe and easiness in rupture of a branch pipe in an installation process are avoided, and the installation is simpler and more reliable; the upper sealing flange tool adopts the design of a gas-collecting ring at the air inlet of the inner-layer glass tube, so that the airflow distribution is more uniform, the installation difficulty is reduced and the different mixing work conditions can be implemented; through arranging the vacuum tube, the problem of influence of frosting of a wall surface under low temperature on observation is avoided.

Description

technical field [0001] The invention belongs to the field of gas-liquid two-phase flow, and in particular relates to a visual test device suitable for low-temperature gas-liquid two-phase mixing. Background technique [0002] The low-temperature two-phase mixing device is a test device that provides gas-liquid two-phase mixing in the case of low-temperature fluid working fluid. [0003] With the development of high-tech fields such as aerospace and superconductivity, cryogenic fluids are used more and more widely; and cryogenic fluids must have gas-liquid two-phase flow during use; in order to use cryogenic fluids safely and efficiently, low-temperature gas-liquid two-phase flows The study of phase flow becomes more and more important. The research methods of low temperature gas-liquid two-phase flow mainly include numerical simulation and experimental analysis. Due to the complexity of low-temperature gas-liquid two-phase flow, it is very difficult to accurately numerical...

Claims

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Application Information

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IPC IPC(8): G01M10/00
Inventor 方杰薛传发方雪健蔡国飙
Owner BEIHANG UNIV
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