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A hydraulic axial pressure generating device for a high-temperature and high-pressure rheometer and its application method

A high-temperature and high-pressure rheological and generating device technology, which is applied in the field of hydraulic axial pressure generating devices for high-temperature and high-pressure rheometers, and ultra-high pressure equipment, can solve the problem of slow response speed of fast switching valves, failure to meet experimental requirements, and failure to reach It is required to switch frequency and other issues to achieve the effect of low noise, low cost and solving interference problems

Active Publication Date: 2018-06-12
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fast switching valves on the market have a slow response speed, cannot reach the required switching frequency, and cannot meet the experimental needs

Method used

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  • A hydraulic axial pressure generating device for a high-temperature and high-pressure rheometer and its application method

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Experimental program
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Effect test

Embodiment Construction

[0027] The present invention will be further described below in conjunction with accompanying drawing.

[0028] like figure 1 As shown, this embodiment provides a hydraulic axial pressure generating device for a high temperature and high pressure rheometer, which includes a fuel tank 1, a filter 2, an oil pump 3, a check valve 5, a plunger cylinder 13, and a booster cylinder 11, controller. The oil pump 3 is driven by the first servo motor 4 to work. The input pipeline of the oil pump 3 is connected to the fuel tank 1 through the filter 2, and the output pipelines are respectively connected with three oil circuits. The first oil circuit is connected to the fuel tank through the oil drain pipeline. The second oil circuit is connected with the oil inlet of the plunger cylinder 13, the third oil circuit is connected with the rodless chamber of the pressurized cylinder 11, and detection elements 10 are arranged at both ends of the pressurized oil cylinder 11. The piston rod end ...

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Abstract

The invention discloses a hydraulic shaft pressure generation device for a high-temperature and high-pressure rheometer and an application method thereof. The device comprises an oil tank, an oil pump, a plunger cylinder, a boost oil cylinder and a controller; an input pipe of the oil pump is connected with the oil tank, and an output pipe is respectively connected with three oil ways; the first oil way is connected with the oil tank through an oil leakage pipeline; the second oil way is connected with an oil inlet of the plunger cylinder; and the third oil way is connected with a rodless cavity of a boost cylinder; detecting elements are arranged at two ends of the boost oil cylinder; a piston rod end of the boost cylinder is matched with a pressing rod of the high-temperature and high-pressure rheometer; a piston rod end of the plunger cylinder is driven through a plunger cylinder driving device; the cylinder diameter of the boost cylinder is larger than the cylinder diameter of the plunger cylinder, and the two exists a proportion difference; and the controller is respectively connected with the detecting elements and the plunger cylinder driving device. The device realizes quick pressurization of the shaft pressure, low-speed feeding, precise pressure maintenance, pressure replenishment and return work through different combinations of limited elements, is stable in overall operation, and is low in noise.

Description

technical field [0001] The invention relates to the field of high-pressure pressure test research, in particular to a hydraulic axial pressure generating device for a high-temperature and high-pressure rheometer and a method for using the same. Ultra-high pressure equipment in various technical fields such as aerospace, shipbuilding, material molding, petrochemical, etc. Background technique [0002] The development of hydraulic technology and measurement and control system has made rapid progress in the research and application of ultra-high pressure hydraulic pressure. The high-temperature and high-pressure rheometer is an advanced experimental instrument in the deep exploration of the earth. The reliability of the research results largely depends on the control accuracy of the confining pressure, axial strain and heating system. The rheometer simulates the axial high-pressure environment by controlling the moving speed and extrusion force of the deformed plunger to condu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/08F15B21/04F15B19/00F15B13/02
CPCF15B13/021F15B13/024F15B19/00F15B21/041F15B21/08
Inventor 饶建华杨双双李顺合刘梦
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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