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Rotating gas flowmeter

A gas flow meter and gas collection technology, which is applied in liquid/fluid solid measurement, measurement flow/mass flow, measurement devices, etc., can solve problems such as calculation and evaluation result errors, to ensure effectiveness, prolong service life, and improve detection The effect of precision

Inactive Publication Date: 2008-08-06
郑侠 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As we all know, the state of the gas at different positions is always changing, and if the state quantity of different sections is used to calculate the gas flow rate of a certain section, the calculation and evaluation results will have large errors

Method used

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Embodiment Construction

[0024] As shown in Figure 1 is the working principle block diagram according to the gas flow meter of the present invention, wherein the measurement bridge of the measurement flow velocity of the first gas chamber and the measurement bridge of the measurement temperature, pressure and concentration of the second gas chamber output and measure respectively and obtain In the same circuit board, four measurement circuits of flow rate, temperature, pressure and concentration are integrated, the electrical signal is amplified by the signal amplification circuit, and then the electrical signal is converted into a digital signal by the A / D conversion circuit, and the digital signal After being processed by the data processing center, the output signal is displayed on the data display device. It also has an input device for inputting various instructions and parameters. The power supply part performs the signal amplification circuit, A / D conversion circuit, data display device and data ...

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Abstract

The invention provides a rotatable gas flow meter, which integrates various collector functions of gas state quantity in one device to realize collecting various state quantities of gas flow rate, temperature, pressure and concentration at one position, thereby largely increasing assessment precision upon the gas flow. And an air inlet head of a multi-parameter gas collecting device of the gas flow meter can rotate via large angel, which is convenient for the installation of the device and measurement. The gas flow meter comprises the rotatable multi-parameter gas collecting device, four measuring bridges, a signal amplifying circuit, an A / D converter circuit, a data processing center, a power supply circuit, a data display equipment and an input device. A gas collecting portion employs multi-channel structure and multi-layer structure, and air orifices of the gas collecting device can freely rotate.

Description

technical field [0001] The invention relates to a rotatable gas flowmeter, which can quickly and easily collect multiple parameters of the gas state at a certain position, thereby measuring parameters such as temperature, pressure, concentration and flow rate of the gas flowing through the position, Then combined with the theory of fluid mechanics to calculate the gas flow. Background technique [0002] At present, most of the known mine pipeline gas flowmeters collect each parameter separately, and each collection device collects a parameter of a gas, for example, it can be divided into gas temperature collector, gas pressure collector, gas concentration collector and The gas flow rate collector has four parts, and then the gas flow is calculated from the four parameter values. The above-mentioned gas flowmeters collect gas parameters at different points, and different state quantities are collected at different sections. , a section of the gas velocity collector. As we ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/00G01D21/02
Inventor 郑侠郑永贤刘顺桂
Owner 郑侠
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