Lifting liquid exchanging wide range liquid level meter calibration device

Abstract

The invention discloses a lifting liquid exchanging wide range liquid level meter calibration device. The device comprises a top plate, a clamping device, a lifting mechanism, a levelling module, a magnetic grating ruler and liquid grooves. The lifting mechanism comprises traction wheels, tow ropes, counter weight and a lifting plate; the leveling module comprises a levelling board, leveling legs and a tilt angle sensor. By the lifting liquid exchanging wide range liquid level meter calibration device, large range measurement is taken into account, the liquid level meter within 30 meters can be calibrated. The calibration device is fixed by a clamping device on the balcony of the roof top of a building, screw nuts with discs on the four end parts are adopted, when clamping fixing action is made, leveling is conducted on the top plate at two degrees of freedom, the level of the to-be-measured liquid level meter is guaranteed. Motor load is reduced by the design of counter weight. The liquid tank can be replaced, different tanks are loaded with different kinds of liquids, the circumstances of different liquid levels measured by the to-be-measured liquid level meters can be simulated. The liquid level meter calibration device has the characteristics of being small in occupied space and high in accuracy, the process of calibration of the liquid level meter can be greatly simplified, and costs are saved.

Description

technical field [0001] The invention relates to a calibrating device for a lift-type replaceable liquid large-range liquid level gauge, which is used for calibrating the large-range liquid level gauge. Background technique [0002] At present, large storage tanks (100,000 cubic meters) are widely used in the petroleum field. In order to strengthen the management of storage tanks, understand the storage capacity of each storage tank in real time, and grasp the payment status, various forms of liquid level gauges are widely used. The measurement accuracy of the liquid level gauge is directly related to the economic indicators of the enterprise's business settlement, cost accounting, and energy conservation, and is also directly related to the economic interests of my country's foreign economic trade and national measurement reputation. Therefore, it is very important to calibrate the level gauge. The traditional verification method of large-scale liquid level gauge is to bui...

AI Technical Summary

Problems solved by technology

At present, the commonly used liquid level gauge calibration method is to use a steel tape as a standard device for comparison or to calculate and compare by measuring the pressure value. The verification / calibration accuracy of these two methods is affected by the ambient temperature, personnel calculation errors and The impact of accuracy, the error is large, and it takes up a lot of space

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