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Method for determining at least one gas parameter of a flowing gas

一种气体参数、流动气体的技术，应用在液体/流体固体测量、材料导热系数、间接质量流量计等方向

Active Publication Date: 2014-12-24
DIEHL METERING
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] However, the described method can only determine one additional gas parameter, so that calibration is still possible for only some gas mixtures

Method used

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  • Method for determining at least one gas parameter of a flowing gas
  • Method for determining at least one gas parameter of a flowing gas
  • Method for determining at least one gas parameter of a flowing gas

Examples

Experimental program
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Effect test

Embodiment Construction

[0055] figure 1 An exemplary embodiment of a flow meter is shown for determining at least one gas parameter. The flow meter 1 includes a measuring part 2 which is located inside the pipe 3. Here, for example, the duct 3 is formed as a rectangular duct having a small height in order to generate laminar flow.

[0056] There is a heating element 4 which is arranged concentrically inside the measurement section 2 and which can be controlled by the controller 5. The controller 5 may be formed as a separate controller, although it may also be controlled by the computing unit 10. The driving of the heating element 4 caused by the controller 5 is typically implemented so that the heating capacity of the heating element 4 is constant. In order to obtain additional information about the gas flowing through the measuring part 2, the heating capacity of the heating element 4 can nevertheless be changed between two values ​​or more by the controller 5. If the heating element 4 has an almos...

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PUM

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Abstract

A method for determining at least one gas parameter, of a flowing gas, by means of a flow meter, comprising a measurement section having a heating element and at least three temperature sensors, over which the gas is fed, at least one first temperature sensor being arranged upstream of the heating element, at least one second temperature sensor being arranged in the region of the heating element, and at least one third temperature sensor being arranged downstream of the heating element, wherein a calculation unit determines the at least one gas parameter as a function of the temperature measurement values at the first, second and third temperature sensors, and / or at least two separate gas parameters as a function of the temperature measurement values of individual different temperature sensors and / or the combinations of temperature measurement values of different temperature sensors.

Description

Technical field [0001] The present invention relates to a method for determining at least one gas parameter (especially the flow rate) of a flowing gas by means of a flow meter. The flow meter includes a measurement section through which the gas supply passes, the measurement section having a heating element and at least three At least one first temperature sensor is arranged upstream of the heating element, at least one second temperature sensor is arranged in the area of ​​the heating element, and at least one third temperature sensor is arranged downstream of the heating element, especially the heating element itself Used as a temperature sensor. Background technique [0002] A method for measuring the flow rate and other parameters of the gas flowing through the measuring part is to heat the gas in the area of ​​the measuring part, and then, for example, by means of temperature data from a temperature sensor arranged upstream and a temperature sensor arranged downstream The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/86G01D21/02
CPCG01N27/18G01N33/0031G01F1/6965G01F1/684G01N25/18
Inventor C·席尔姆
Owner DIEHL METERING
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