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Zero-gravity flowmeter and weightlessness flow controller

A technology of flow controller and weightless method, applied in the direction of flow control using electric devices, etc., can solve the problems of complex structure, high cost and easy loss of flow detection equipment, and achieve the effects of low cost, simple on-site construction and wide application range.

Inactive Publication Date: 2006-08-02
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of complex structure, high cost and easy wear and tear of the flow detection equipment used in the existing industrial automatic production, and provide a weight loss method with the advantages of simple structure, anti-corrosion ability, accurate measurement and flexible control mode. Flow Meters and Loss-in-Weight Flow Controllers

Method used

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  • Zero-gravity flowmeter and weightlessness flow controller
  • Zero-gravity flowmeter and weightlessness flow controller
  • Zero-gravity flowmeter and weightlessness flow controller

Examples

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Effect test

Embodiment 1

[0028] The flow standard current signal or digital signal output by the weight loss method flowmeter is used in conjunction with other existing controllers.

[0029] Such as image 3 , Figure 5 As shown, taking chlorine gas as an example to control the flow of chlorine gas in production, the liquid chlorine storage tank is lifted off the ground with a tension sensor at the production site (a hanger needs to be installed), or it is placed on a weighbridge supported by a pressure sensor (It is necessary to install a weighbridge). At this time, the weight signal of the liquid chlorine storage tank is input into the weight loss flowmeter through the tension (pressure) sensor. The weight of the chlorine storage tank will be reduced, and a weight difference will occur compared with the previous moment. The weight loss flowmeter calculates the flow (Kg / H), and the flow signal (0-20mA) is input into the controller regulator to adjust The outlet regulating valve of the liquid chlori...

Embodiment 2

[0031] Directly use the flow regulation signal output by the weight loss method flow controller to control the regulator to control the flow.

[0032] Similarly, using the weightlessness method flow controller, after being installed by suspension or weighbridge, the flow value can be directly compared with the given flow value by using the weightlessness principle, and the flow control actuator can be directly controlled by the control algorithm, so as to achieve flow control. Requirements, the use of the flow regulation signal output by the weight loss method flow controller to control the flow of the regulator is as follows: Figure 4 , Figure 6 shown.

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Abstract

The present invention discloses a zero-gravity flowmeter and zero-gravity method flow controller. Its structure includes power supply, also includes sensor, said sensor can be used for making the measured weight value signal be passed through an amplifier and digital converter to obtain digital signal, then making the digital signal be fed into microprocessor; said microprocessor can be used for processing said signal and outputting said signal; said control signal can be communicated with upper-position machine by means of interface circuit, the weight and flow values can be transferred to the upper-position machine, the upper-position machine can make monitoring management, the measured weight value also can be fed into memory, and the weight and flow values can be displayed by means of display device.

Description

technical field [0001] The invention relates to a weight loss method flow meter and a weight loss method flow controller used for flow detection in industrial automatic production. Background technique [0002] In industrial automation production, especially in chemical industry, building materials, metallurgy, medicine and other industries, gas and liquid flowmeters and controllers are indispensable measurement and control instruments. The measurement accuracy and reliability of flowmeters directly affect the quality of products. Therefore, the flowmeter is one of the key control instruments in industrial automation production. [0003] The flowmeters commonly used in current industrial production include gas and liquid flowmeters, which can be mainly divided into throttling, positive displacement, turbine, electromagnetic, and vortex flowmeters according to their different measurement principles. In the chemical industry, flowmeters are more widely used. As we all know, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D7/06
Inventor 艾长胜张辉赵洪华王娜孙选李国平
Owner UNIV OF JINAN
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