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Diagnosis and protection device and method for tunnel drilling rig based on virtual instrument

A technology of virtual instruments and tunnel drilling rigs, applied in earthwork drilling, drilling equipment, drilling automatic control systems, etc., can solve problems such as unrecognizable drilling rig failures, high main pump pressure, and unrecognizable fault types, etc., to achieve rich functions, The effect of improving the level of digitization, increasing adaptability and practicality

Active Publication Date: 2021-04-23
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the field of fault diagnosis, simple threshold judgment cannot identify complex drilling rig faults
For example, the failure of the main pump and the safety valve may cause the pressure of the main pump to be too high, and the type of failure cannot be identified by using the pressure of the main pump to exceed the limit.

Method used

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  • Diagnosis and protection device and method for tunnel drilling rig based on virtual instrument
  • Diagnosis and protection device and method for tunnel drilling rig based on virtual instrument
  • Diagnosis and protection device and method for tunnel drilling rig based on virtual instrument

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Embodiment

[0053] see figure 1 , the diagnostic and protective device and method for tunnel drilling rig based on virtual instrument technology according to the present invention, comprising: the hardware structure of the system is mainly divided into a sensing module 1, a real-time data acquisition instrument 2, a power supply module 3, and a data processing and display terminal 4 The five parts, including the protection module 5, all adopt intrinsically safe circuit design and can be used in coal mines. Except that the power supply module 3 and the real-time data acquisition instrument 2 are encapsulated by integrated circuits, all other circuit connections are connected by cables.

[0054] The sensing module 1 includes a temperature sensor 13 , a liquid level sensor 14 , an inclination sensor 15 , a speed sensor 16 , a vibration sensor 17 , an encoder 18 , and a pressure transmitter 11 and a flow sensor 12 that are screwed to the oil block 19 . The sensor wiring used is in the form o...

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Abstract

The invention relates to a protection device and a method, belonging to the field of downhole electronic instruments and meters, in particular to a diagnostic protection device and method for tunnel drilling rigs based on virtual instruments. It includes five parts including sensing module, real-time data acquisition instrument, power supply module, data processing and display terminal, and protection module, all of which are designed with intrinsically safe circuits and can be used in coal mines; the software passes through the hardware driver layer, platform software layer, and application program The three-tier architecture is designed and developed to realize the functions of storage, communication, display, monitoring and diagnosis; during the diagnosis process, a fault database and feature library are built to accurately identify drilling rig faults through similarity coefficients, and make corresponding alarms according to fault levels response. The invention has small volume and low cost, can comprehensively monitor the state of the drilling rig, accurately identify the failure of the drilling rig, improves the digital level of the drilling rig, and provides technical support for the intelligentization of the drilling rig in the future.

Description

technical field [0001] The invention relates to a protection device and a method, belonging to the field of downhole electronic instruments and meters, in particular to a diagnostic protection device and method for tunnel drilling rigs based on virtual instruments. Background technique [0002] The full hydraulic tunnel drilling rig is mainly used for underground gas drainage and water exploration and drainage drilling in coal mines. It is a special mechanical equipment with complex structure, harsh working environment and multi-source vibration. The reliability of its operation directly affects the safety and efficiency of underground drilling in coal mines. At present, the operating parameters of drilling rigs are mostly monitored by mechanical instruments. These instruments cannot diagnose the faults of the drilling rig, nor record the status data of the drilling rig. Only relying on the active observation of the workers and past experience to judge whether the drilling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B44/00
CPCE21B44/00
Inventor 董洪波马斌李晓鹏乔杰张阳阳宋海涛
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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