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Flow calibrator based on static weighing method

A weighing method and flow rate technology, applied in direct mass flow meters, mass flow measurement devices, liquid/fluid solid measurement, etc., can solve problems such as sensor drift, achieve accurate flow measurement, speed up water flow switching, convenient and effective Effects of flow measurement and flow rate calibration

Active Publication Date: 2014-12-10
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when these devices have been used for a certain number of years, the built-in sensors will drift
At the same time, these devices are greatly affected by temperature and installation environment, so in many cases, other high-precision flow measurement devices must be used to calibrate them.

Method used

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  • Flow calibrator based on static weighing method
  • Flow calibrator based on static weighing method
  • Flow calibrator based on static weighing method

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Embodiment Construction

[0015] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0016] please see figure 1 , figure 2 and image 3 , the technical solution adopted in the present invention is: a flow rate meter based on static weighing method, including electronic scale 1, weighing water tank 2, water distribution tank 3, high-speed cylinder 4, air compressor 5, reversing switch 6 , control box 8, steel bracket 14, connecting rod 16; high-speed cylinder 4 is provided with two air inlets and outlets of the high-speed cylinder, respectively head inlet and outlet 150 and tail inlet and outlet 151, weighing water tank 2 top is provided wi...

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Abstract

The invention discloses a flow calibrator based on a static weighing method and belongs to a large-sized experimental measuring instrument. The flow calibrator comprises a distribution box, a weighing water box, an electronic scale and a control box. The distribution box is used for quickly changing a water flow direction. The weighing water box is used for loading total water flow in a certain time. The electronic scale is used for measuring weight of water. The control box is used for controlling a whole system and acquiring, analyzing and auto-processing data. The flow calibrator has the advantages that all parts are integrated, automatic control and precise computational analysis are achieved, and flow of a pipeline is accurately measured conveniently.

Description

technical field [0001] The invention belongs to the technical field of flow measurement, and relates to a device for measuring pipeline flow, in particular to a flow measurement and calibrating device capable of integrated operation. Background technique [0002] Accurate measurement of flow is very important to various fields of national economy such as water conservancy, hydropower, chemical industry, petroleum, hydraulic construction, agriculture and environmental protection. At present, modern electronic flow devices such as electromagnetic flowmeters, differential pressure flowmeters, ultrasonic flowmeters, and Doppler flowmeters are widely used in the measurement of pipeline flow and open channel flow, and they can be used to measure dynamic flow changes. The basic principle of these devices is to convert the flow rate into an electrical signal through a sensor, and then convert the electrical signal into a digital signal. However, when these devices are used for a ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00G01F1/78
Inventor 曾威杨建东王学武王炳豹郭文成姚尚武
Owner WUHAN UNIV
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