Solution-injection circulating system under high-pressure environment

A high-pressure environment and circulation system technology, applied in the direction of applying stable tension/pressure to test material strength, soil material testing, material inspection products, etc., can solve problems such as inability to respond to soft rock performance changes, and achieve simple installation and application The effect of broad prospects and simple application installation

Active Publication Date: 2015-08-05
SUN YAT SEN UNIV
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  • Abstract
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Problems solved by technology

Most of the existing technologies use oil pressure as the confining pressure for experimental research, which cannot reflect the performance changes of soft rock under load and water

Method used

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  • Solution-injection circulating system under high-pressure environment

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Embodiment Construction

[0018] Such as figure 1 As shown, the present invention is a solution injection circulation system under high pressure environment. There are several functions as follows: 1. The confining pressure solution can be pumped into the pressure chamber (15); 2. The chemical solution can be injected into the high pressure pressure chamber (15) during the experiment; 3. The pressure chamber can be promoted to dissolve under the high pressure environment (15) Liquid circulation flow.

[0019] The operation is as follows:

[0020] 1. Before the experiment starts, put the pre-configured chemical solution into the chemical solution tank (11, 12) by opening the switch valve (13, 14), and then close the switch valve (13, 14). Then the reversing valves (3, 5, 7, 8, 10) are closed and placed in a disconnected state. The reversing valves (6, 9) are opened and placed in the passage state. The high-pressure resistant circulation pump (4) is turned on, and at this time, the solution in the pr...

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Abstract

The invention relates to a solution-injection circulating system under a high-pressure environment, wherein the system is composed of a high-pressure-resistant circulating pump, an electromagnetic reversing valve, an electromagnetic single-direction valve and a plurality of high-pressure-resistant guide tubes. In the system, different chemical solution boxes are orderly connected to each other through the high-pressure-resistant guide tubes, thereby achieving injection and circulation of different solutions in a pressure chamber under the high-pressure environment through conversion of the reversing valve and power output of the high-pressure-resistant circulating pump. The system is suitable for performing operations of injection and circulation of solutions in soft rock test researching under different occurrence chemical environments in the same test group during a tri-axial test.

Description

Technical field: [0001] The invention belongs to the field of rock and soil test instruments, and in particular relates to a solution injection circulation system in a high-pressure environment, which is suitable for the injection and circulation of a confining pressure solution in a pressure chamber of a triaxial instrument under high pressure. Background technique: [0002] The study of water-rock interaction is an international frontier topic in the field of rock mechanics. The performance research on the disintegration, softening and mechanical property degradation of soft rock after contact with water is a research field worthy of attention. One of the important methods is to simulate the softening, disintegration characteristics and mechanical properties of soft rock under hydrodynamic circulation through experiments. characteristic. Most of the existing technologies use oil pressure as the confining pressure for experimental research, which cannot reflect the perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01N33/24
Inventor 周翠英莫有堂刘镇
Owner SUN YAT SEN UNIV
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