High precision coal seam gas pressure recorder

Abstract

The invention discloses a high precision coal seam gas pressure recorder which comprises a main control module, a pressure sensor, a signal conditioning module, an ADC module, a power supply module, an LCD display module, an overrun alarm, a keyboard input module, a TF card module and a clock Module. The pressure sensor, the signal conditioning module, the ADC module and the power supply module are connected in turn. The ADC module is connected with the SPI interface of the main control module. The power supply module is connected with the main control module. The LCD display module is connected with the LCD interface of the main control module. The TF card module is connected with the TF card interface of the main control module. The keyboard input module is connected with the USB interface of the main control module. The main control module is connected with the overrun alarm and the system clock. The recorder has the advantages of high accuracy, high reliability and high efficiency, and can record the pressure of a coal seam gas in real time.

Description

technical field [0001] The invention relates to the technical field of coal seam gas pressure recording, in particular to a high-precision coal seam gas pressure recorder. Background technique [0002] In coal mine construction and production, gas control is always the top priority of coal mine safety work. In recent years, with the increase of coal mining depth, the gas content is also increasing. In order to effectively prevent and control gas accidents, it is first necessary to do a good job in the detection of coal seam gas pressure. Therefore, only when the pressure data is accurately and quickly measured, and the pressure data can be automatically analyzed accurately and effectively, can effective early warning and evaluation of gas accidents be carried out. [0003] According to the technical requirements of the "Coal Mine Safety Regulations 2016", if the gas pressure reaches or exceeds 0.74MPa, the coal seam outburst hazard identification should be carried out immed...

AI Technical Summary

Problems solved by technology

The data obtained by relying on this method not only has low reliability and low efficiency, but also has poor real-time performance, and the accuracy is far from meeting the requirements

[0004] According to the requirements of this kind of equipment in the actual situation of coal mine production, the range needs to be 0-6MPa, and the resolution accuracy of 0.015MPa can be achieved within this range, but there are almost no such digital display pressure gauges on the market, and there is no data storage. , overrun alarm, curve drawing and other functions

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