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Testing device for measuring expansion pressure and temperature of expansion material

A technology for expanding materials and testing devices, which is applied in the direction of measuring devices, analyzing materials, and adopting mechanical devices, etc., can solve the problems of complex testing process, non-reusable use, and increased cost, and achieve simple testing process, low testing cost, and improved The effect of test accuracy

Active Publication Date: 2015-10-28
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

The disadvantages of these measurement methods are that the test process is complicated, the test result is not accurate, and a large amount of heat is released, which is harmful to electronic components and cannot be reused, thereby increasing the cost. The most important thing is that the expansion material acts on the broken object to form a damaged area. , stress release occurs inside the damaged area, reducing expansion resistance, so these three methods cannot truly measure expansion pressure and temperature

Method used

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  • Testing device for measuring expansion pressure and temperature of expansion material
  • Testing device for measuring expansion pressure and temperature of expansion material
  • Testing device for measuring expansion pressure and temperature of expansion material

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Embodiment Construction

[0028] The present invention is described in detail below with reference to accompanying drawing and embodiment:

[0029] Such as figure 1 As shown, a test device for measuring the expansion pressure and temperature of the expansion material includes a temperature sensor 1 in the elastic expansion tank 9 and a rigid expansion tank 10, a pressure sensor 2, a hydraulic gauge 4, a two-way variable hydraulic pump 5 and a hydraulic pressure sensor 7. The cable is connected to the sensing receiving system 6 .

[0030] The hydraulic pressure sensor 9 of the elastic expansion tank is provided with a hydraulic capsule hydraulic sensor 7 and a hydraulic capsule hydraulic sensor 8, which are connected to the hydraulic gauge 4 and the sensor 7, and the pressure is increased by the bidirectional variable hydraulic pump 5.

[0031] The hydraulic pressure sensor 7 of the elastic expansion tank is connected with the sensing receiver 6 .

[0032] The elastic expansion tank 9 and the rigid ex...

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Abstract

The invention relates to a testing device for measuring the expansion pressure and the temperature of an expansion material, and relates to the technical field of coal mine gas pumping drainage. An elastic expansion tank and a rigid expansion tank are arranged on the testing device and are provided with pressure sensors and temperature sensors, and the pressure sensors and the temperature sensors are connected with a sensing receiver through cables. The testing device is simple in testing technology, high in testing precision and capable of being reused and measuring the expansion pressure and the reaction temperature in a non-damage stage and a damage stage.

Description

technical field [0001] The invention relates to the technical field of coal mine gas drainage, in particular to a test device for measuring the expansion pressure and temperature of expansion materials. Background technique [0002] Expansive material is a kind of pollution-free crushing material. It has been widely used in stone mining, rock crushing and other fields. It is extended to the field of mine mining and treatment. Among them, the expansion pressure is the most important performance index used to measure the expansion material. It is directly related to to the mining effect. In addition, the hydration reaction of the expansion material is greatly affected by the temperature. The hydration is too fast at a high temperature above 40°C, and it is easy to spray holes; below 0°C, the hydration is too slow, and the crushing effect is extremely poor. At present, the commonly used methods for testing the expansion pressure of intumescent materials include the outer tube ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/00G01D21/02
Inventor 张嘉勇巩学敏杨忠东常文杰武建国关联合崔啸
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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