Pressurizing rotary rheometer

A rotational rheometer, rotor technology, used in instruments, flow characteristics, scientific instruments, etc.

Inactive Publication Date: 2005-09-14
ZHANGKUANG ELECTROMECHANICAL ENG TECH INST BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the deficiency that existing rotational viscometers cannot measure the rheological properties of "viscous homogeneous fluid" with high concentration under pressurized conditions, the present invention provides a pressurized rotational rheometer, the pressurized rotational rheometer The instrument can not only measure the rheological properties of "viscous homogeneous fluid" under normal pressure, but also conveniently measure the change trend of fluid rheological properties under different pressures.

Method used

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Embodiment Construction

[0009] combine figure 1 , figure 2 Shown: Hydraulic cylinder assembly (1), viscosity testing assembly (3), torque sensor (4), AC servo motor (5) are coaxially arranged on the upper, middle and lower three sides of the support (2) sequentially from top to bottom layers on parallel steel plates.

[0010] The stator (11) and the rotor (12) are coaxially installed in the pressure container. A pressure sensor (13) is installed on the pressure vessel, and a discharge port (9) is arranged. The stator (11) is fixed at the junction of the upper half of the pressure container (6) and the lower half of the pressure container (7), and the rotor (12) passes through the sealing assembly [seal chamber gland (8), seal chamber (10), Felt ring (14), OR double special sealing ring (15)] and locating bearing (16) stretch out outside the pressure vessel, are connected with torque sensor (4) and AC servo motor (5) respectively by coupling.

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Abstract

A pressurizing rotary rheometer used in viscosity measurement of high-concentration viscous homogeneous fluid can aims at the rheological measurement of high-concentration viscous slurry containing big particles under pressurizing state. The instrument comprises servo-motor driving system, viscosity measuring system, hydraulic drive system and so on. In the viscosity measuring system, the hydraulic cylinder part, viscosity measuring part, torque sensor and AC servo-motor are coaxially installed on a vertical type bracket orderly.

Description

Technical field [0001] The invention relates to an instrument capable of measuring the rheological properties of high-viscosity "viscous homogeneous fluid" under high-pressure conditions. Background technique [0002] At present, most of the known rotational viscometers and rheometers ignore the influence of pressure on viscosity, and can only measure viscosity under normal pressure. Due to structural reasons, a small number of pressurized rotational rheometers can only measure the viscosity of petroleum drilling fluids and various lubricating oils under pressurized conditions. The measuring device is not there yet. Contents of the invention [0003] In order to overcome the deficiency that existing rotational viscometers cannot measure the rheological properties of "viscous homogeneous fluid" with high concentration under pressurized conditions, the present invention provides a pressurized rotational rheometer, the pressurized rotational rheometer The instrument can not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/14
Inventor 吴淼杨晓璞赵学义巩长勇孟国营
Owner ZHANGKUANG ELECTROMECHANICAL ENG TECH INST BEIJING
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