Liquid reservoir automatic calibration device and calibration method

Abstract

The invention relates to a liquid reservoir automatic calibration device and a calibration method. The device comprises a filter, an exhaust valve, a pressure relieving and stabilizing valve, an ultrasonic wave flowmeter, an upper rectifier plate, an upper manual valve, an upper standard meter, an upper electromagnetic valve, a lower rectifier plate, a lower manual valve, a lower standard meter, a lower electromagnetic valve, an electric regulating valve, a laser sensor, a meter to be tested, a liquidometer, a liquid reservoir to be detected, a pressure transmitter, a first temperature transmitter and a second temperature transmitter. The device can realize the automatic reading of flow rate, liquid level, temperature pressure and regulating valve feedback signals and other signals and automatic storage and processing of data and form printing reports; and the whole process is automatically accomplished with reduced human error and improved accuracy of the device.

Description

technical field [0001] The invention belongs to the technical field of automatic detection, and relates to an automatic verification device and a verification method of a liquid storage tank. technical background [0002] Offline calibration can only be used for flowmeters and water meters in detachable pipelines, and the inspection period is long, which affects the efficiency of use. For containers such as small liquid storage tanks and liquid tanks, only online calibration can be used. The online calibration technology fully considers the working conditions such as on-site environmental conditions, measurement medium, fluid conditions, and installation conditions, so it avoids the disadvantage that the accuracy of the meter to be calibrated obtained by offline calibration cannot represent the actual use accuracy. [0003] The existing flowmeter online calibration system has the following problems: [0004] 1. Insufficient accuracy: Calibrating the flow point is realized ...

AI Technical Summary

Problems solved by technology

[0004] 1. Insufficient accuracy: Calibrating the flow point is achieved by manually adjusting the valve, and there is an error between the actual flow value and the set value

[0005] 2. Inconvenient transportation: the measuring pipeline uses a surge tank, which is not conducive to transportation

[0006] 3. The verification efficiency is not high: the manual implementation of the calibration process requires repeated debugging, which takes a long time

[0007] The existing tank capacity calibration adopts the volume method to determine the capacity meter, which has problems such as manual reading error, long verification time, and cumbersome operation.

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