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

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 ...

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.

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