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Method and device for measuring viscosity of high-temperature high-pressure fluid

A high-temperature, high-pressure, viscous technology, applied in the measurement of DC flow characteristics, etc., can solve problems such as lack of hydrocarbon fuel, and achieve the effects of large flexibility, improved measurement range, and simple and convenient experimental operation.

Inactive Publication Date: 2013-01-30
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the research on the physical properties of hydrocarbon fuels, especially at high temperature and high pressure, is still extremely lacking.

Method used

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  • Method and device for measuring viscosity of high-temperature high-pressure fluid
  • Method and device for measuring viscosity of high-temperature high-pressure fluid
  • Method and device for measuring viscosity of high-temperature high-pressure fluid

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Experimental program
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Embodiment Construction

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0049] The invention is a device suitable for measuring the viscosity of high-temperature and high-pressure fluids, comprising three parts: a measuring system, a heating and heat preservation system and a data acquisition system.

[0050] like figure 1 As shown, the measurement system is divided into a short tube measurement part and a long tube measurement part, and the short tube measurement part includes eight short tube test sections 5, a first header 41, a second header 42, a first adapter 31, a second An adapter 32, a first guide tube 21, a second guide tube 22, a four-way joint 1, a first three-way joint 10, a first pressure-taking tube 71 and a second pressure-taking tube 72;

[0051] A guide tube 9 is used for connection between the short tube measurement part and the long tube measurement part. The device must be used horizontally to eliminate the...

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Abstract

The invention discloses a method and a device for measuring the viscosity of a high-temperature high-pressure fluid. A tube bank length capillary tube measurement method which is applicable to viscosity measurement of various fluids at different temperature and under different pressure is obtained by extending a classical method for measuring the viscosity of a fluid by using a capillary tube on the basis of a constant flow conservation principle in fluid mechanics. The viscosity of the fluid is mainly calculated by utilizing the difference of pressure drops generated when fluids to be measured which have the same mass flow, temperature and pressure flow through capillary experimental tubes with different lengths under laminar flow conditions. The device which applies the method heats the fluid and preserves heat through external world and a temperature controller is used for automatic control to compensate the heat loss of heat dissipation of the fluid in the flowing process, so that more accurate experimental data of the viscosity is obtained. The method and the device are easy to operate, and are applicable to the measurement of the viscosity of fluids under different pressure and at different temperature.

Description

technical field [0001] The invention relates to a method and device suitable for measuring the viscosity of high-temperature and high-pressure fluids, which are mainly used in aerospace, energy, automobile, petrochemical and other related fields lacking fluid physical property data. Background technique [0002] In the late 1980s, in order to gain an advantage in military and commercial competition in the 21st century, the U.S. Department of Defense implemented a joint project involving the Air Force, Navy, Army, National Aeronautics and Space Administration (NASA), Defense Advances Research Agency (DARPA) and industry. It is a national strategic engine technology pre-research program jointly participated by the industry, namely the Integrated High Performance Turbine Engine Technology (IHPTET) program. The IHPTET program started in 1988 and was originally planned to end in 2002, but it is now delayed until 2005. The overall goal is to double the capability of aero-engines c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/08
Inventor 邓宏武张春本徐国强张斌陶智朱锟
Owner BEIHANG UNIV
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