Mounting method and device with acoustic emission sensor recycling capacity
A technology of acoustic emission sensor and installation method, which is applied in the direction of material analysis using acoustic wave emission technology, measuring devices, and material analysis using sound waves/ultrasonic waves/infrasonic waves, etc., which can solve the problems of expensive sensors, waste of resources, and inability to recycle sensors, etc. problems, achieve the effect of convenient and quick installation, reduce economic costs, and improve the accuracy of signal monitoring
Active Publication Date: 2015-03-11
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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However, due to the high requirements on the sensor itself, and the price of the sensor is relatively expensive, the existing installation method cannot recycle the sensor, resulting in a serious waste of resources
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[0022] The present invention will be further described below in conjunction with accompanying drawing and embodiment: figure 1 It is a schematic diagram of the principle of the present invention. Such as figure 1 As shown, the waveguide rod 1, the drilling hole 2, the sealing liquid bag 3, the guide hole 4, the baffle 5, the acoustic emission sensor 6, the fixing claw 7, the recovery arm 8, the casing 9, the delivery pipe 10, and the sealing rubber ring 11 , sealing solution bag pull wire 12, signal wire 13.
[0023] In this embodiment, it includes a waveguide 1, a recovery device, a sealing solution bag, and a sealing solution bag pull wire 12, and the recovery device includes a fixing claw 7, a recovery arm 8, a housing 9 and a baffle 5; the baffle 5 is sealed and fixed on the In the shell 9, the inner cavity of the shell 9 is divided into a front cavity and a rear cavity, the sealing liquid bag 3 is placed in the front cavity, the acoustic emission sensor is installed in ...
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The invention provides a mounting method and device with acoustic emission sensor recycling capacity. The method comprises the following steps: a, an acoustic emission sensor is fixed in a cavity of a recovery device by a fixing claw; b, the recovery device is mounted in a drill hole, and the front end of a waveguide rod arranged in the recovery device extends deeply into a coal-rock mass body in front of the hole bottom; and c, after monitoring, the sensor is taken out from the rear end of the cavity of the recovery device, and sensor recovery is finished. The specially designed acoustic emission sensor recovery device is used for fixing the sensor in the wall of the drill hole of the mine coal-rock mass body, the mounting method and device are applied to inside of drill holes with any angles in the coal-rock mass bodies with different hardness, can effectively solve the problems that the sensor is difficult to mount and is not mounted in place in depth due to hole collapse and the problems about recycling and the like, and has the advantages that the reliability is high, the signal monitoring precision is increased, noise interference is isolated, mounting is convenient and fast, the sensor can be recycled and the like; and further, the operation difficulty and economic cost are reduced, the mounting efficiency is increased, a better application effect is obtained, and field popularization and application are facilitated.
Description
technical field [0001] The invention relates to the technical field of mine safety monitoring, in particular to an installation method of a reusable acoustic emission sensor. Background technique [0002] With the development of my country's economy, the demand for energy is also increasing, and with the deepening of mine mining, the coal-rock dynamic phenomena or disasters dominated by in-situ stress are becoming more and more serious. At present, the traditional static prediction indicators are often insensitive or relatively ineffective, and cannot effectively guide the safe production of the working face. Advanced, intelligent, and information-based dynamic disaster prediction technology and equipment are urgently needed. Acoustic emission and other non-contact prediction technologies and equipment can capture real-time precursor information of coal-rock dynamic disasters in the working face, and realize dynamic and continuous intelligent identification and advanced fore...
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IPC IPC(8): G01N29/26G01N29/14
Inventor 胡千庭文光才隆清明李建功刘红邹银辉李秋林张宪尚胡杰张睿吕贵春王艺树
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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