Grouting unit flowmeter calibration device and method

Abstract

The invention discloses a grouting unit flowmeter calibration device and method. The method includes the following steps that a flowmeter calibration mark and a flowmeter full-scale value are initialized; when the storage interval of a recorder is reached, the grouting amount during the storage interval is recorded; whether a pulp preparation system runs during the storage interval is judged, if the pulp preparation system runs, the initial pulp amount of the pulp preparation system is initialized, and returning to the step 2 is executed; whether the pulp injection rate of the system is a small injection rate or not is judged, if the pulp injection rate of the system is not the small injection rate, returning to the step 2 is executed, if the pulp injection rate of the system is the smallinjection rate, the flowmeter full-scale value is calibrated and the flowmeter calibration mark is set. According to the device and the method, machines can be used for automatically measuring the grouting amount of a grouting barrel, the flowmeter is automatically calibrated, the automation level of a site can be improved, supervision interference and work intensity are reduced, key quality points of grouting are controlled, the grouting quality is improved, the unnecessary grouting time is reduced and the grouting progress is improved.

Description

technical field [0001] The invention belongs to the technical field of grouting, and in particular relates to a calibrating device and method for a flow meter of a grouting unit. Background technique [0002] During the grouting process, the injection rate measured by the flowmeter is a very important parameter in the grouting process, and its accuracy is very important for engineering measurement and the end of grouting. At present, the electromagnetic flowmeter commonly used in the domestic grouting industry has an error range of 0.5% when measuring water, and an error range of about 1% when measuring grout, especially thick grout, so the error at the end of grouting often results in the following 2 cases: [0003] (1) The hole is no longer eating slurry, but the system site flow has not reached the screen slurry flow rate, and cannot be completed normally. At this time, the construction unit will often ask the supervisor to measure the slurry tank, check the actual slurr...

AI Technical Summary

Problems solved by technology

[0003] (1) The hole is no longer eating slurry, but the system site flow has not reached the screen slurry flow rate, and cannot be completed normally. At this time, the construction unit will often ask the supervisor to measure the slurry tank, check the actual slurry consumption, and record the actual slurry consumption. After the meter shows the amount of grout consumed, make a note, and then end the grouting

Doing so is a lot of work and requires human intervention

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