Calibration device and method for flowmeter of grouting unit

A flow meter and slurry volume technology, which is used in measurement devices, test/calibration devices, liquid/fluid solids measurement, etc., can solve problems such as heavy workload, failure to end normally, and system on-site flow not reaching the slurry flow rate, etc. Achieve the effect of improving the level of automation, preventing human interference, and reducing unnecessary grouting time
CN108801404BActive Publication Date: 2020-06-26CHINA THREE GORGES PROJECTS DEV CO LTD +1
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA THREE GORGES PROJECTS DEV CO LTD
Publication Date
2020-06-26

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a device and a method for calibrating a flowmeter of a grouting unit, comprising the following steps: initializing the calibrating sign of the flowmeter and the full scale value of the flowmeter; Check whether the slurry mixing system operates within the interval. If the slurry mixing system operates, initialize the initial slurry volume of the slurry mixing system and return to step 2; judge whether the system slurry injection rate is a small injection rate. If it is not a small injection rate, return to step 2. If it is small Injection rate, calibration flowmeter full scale value and set flowmeter calibration flag. The invention can use the machine to automatically measure the slurry volume of the slurry tank, and automatically calibrate the flowmeter, which can improve the automation level of the site, reduce supervision intervention and work intensity; control the key quality points of grouting, improve the quality of grouting, and reduce unnecessary grouting Time, improve the grouting progress.
Need to check novelty before this filing date? Find Prior Art

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More