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Volumetric elasticity modulus measurement device and method for gas-liquid two-phase fluid

A technology of fluid volume and elastic modulus, applied in the direction of applying stable tension/pressure to test the strength of materials, can solve the problems of less consideration of temperature and gas content, and achieve the effect of improving position control and positioning accuracy

Active Publication Date: 2019-08-23
YANSHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of the existing fluid bulk modulus measurement devices focus on the influence of pressure factors on the fluid bulk modulus, but less consideration is given to the two factors of temperature and gas content

Method used

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  • Volumetric elasticity modulus measurement device and method for gas-liquid two-phase fluid

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Embodiment Construction

[0028] In the present invention, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "exit", "inlet" and "between" are based on the orientation or positional relationship shown in the drawings, It is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0029] Such as figure 1 As shown, a gas-liquid two-phase fluid bulk modulus measuring device includes a workbench 37, a container mount 13 is arranged on the workbench 37, a container 17 is installed on the container mount 13, and the container 17 is provided with There is a cavity, and a piston rod 8 is arranged in the cavity, and the piston rod 8 passes through the container mounting seat 13, and the pi...

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Abstract

The invention discloses a volumetric elasticity modulus measurement device and method for gas-liquid two-phase fluid. The device comprises a workbench and a container, wherein the container is provided with a containing cavity; a piston rod is arranged in the containing cavity; the extending end of the piston rod is connected with a driving system; the side wall of the container is provided with apressure sensor and a temperature sensor; a gas-liquid two-phase fluid circulation circuit is formed between the containing cavity of the container and a box body; the box body is connected with a gas adding and pumping device; a heating device is arranged in the box body; the driving system drives the piston rod to move, and therefore, fluid pressure in the containing cavity of the container canbe changed; the gas adding and pumping device can change the gas containing rate of the gas-liquid two-phase fluid; the heating device can change the temperature of the gas-liquid two-phase fluid; and after parameters, including the pressure, the gas containing rate, the temperature and the like, are obtained, the volumetric elasticity modulus of the gas-liquid two-phase fluid in the containing cavity under different states can be calculated. The measurement of the device includes three variable factors, including the pressure, the gas containing rate and the temperature, and in addition, measurement accuracy is high.

Description

technical field [0001] The invention relates to the measurement of fluid volume elastic modulus, in particular to a gas-liquid two-phase fluid volume elastic modulus measurement device and a measurement method using the device. Background technique [0002] Bulk modulus is an important index to measure the compressibility of gas-liquid two-phase fluid, and the dynamic change of its value directly affects the stability, accuracy, speed and reliability of fluid transmission and control systems. The bulk modulus of fluid changes with the pressure, temperature and gas content of the fluid. The existing fluid bulk modulus measurement devices mostly focus on the influence of pressure factors on the fluid bulk modulus, but less consideration is given to the two factors of temperature and gas content. Especially for gas-liquid two-phase fluids with large gas content changes, the measuring device should be designed from the perspective of convenient adjustment and easy realization. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12
CPCG01N3/12
Inventor 袁晓明朱轩王储王卫东张立杰
Owner YANSHAN UNIV
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