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Flow meter and method for producing flow meter

A flow meter and fluid flow technology, applied in the field of flow meters, to achieve the effect of increasing flexibility

Active Publication Date: 2019-03-19
DIEHL METERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this becomes a problem when flowmeters with different housing sizes and / or different flow channel lengths are to be provided, since in this case the rectifiers are at different distances from the measuring area, which in turn can lead to different flow profiles in

Method used

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  • Flow meter and method for producing flow meter
  • Flow meter and method for producing flow meter
  • Flow meter and method for producing flow meter

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Experimental program
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Embodiment Construction

[0051] figure 1 A flow meter 1 for detecting fluid flow is shown. The housing 2 of the flow meter has a flow channel 3 through which a fluid can flow and which extends from an inlet opening 4 to an outlet opening 5 . The flowmeter 1 is an ultrasonic measuring instrument. In this case, ultrasonic waves are transmitted by the first ultrasonic transducer 24 and received by the second ultrasonic transducer 25 and vice versa. From the difference in transit time, the velocity of the flow can be calculated and therefore the flow rate can be calculated when the flow cross-section is known. The control of the ultrasonic measuring devices 24 , 25 and the acquisition and processing of the measurement data are carried out by a control device (not shown). In order for the ultrasonic waves to pass through the flow channel substantially parallel to the flow direction, the flow meter 1 also has reflective elements 26 , 27 .

[0052] In order to be able to measure the flow more precisely, ...

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Abstract

The application discloses a flow meter that detects a flow rate of a fluid. The flow meter includes a housing (2) having a flow passage (3), through which the fluid can be guided from an inlet opening(4) of the housing (2) to an outlet opening (5) of the housing (2); a measuring tube (6), which is inserted into the flow passage (3) and constricts the flow cross section in one section (17) of theflow passage (3); and a holding device (7), by which the measuring tube (6) is retained on the housing (6). A respective flow straightener (8) having at least one aperture (9) through which the fluidcan flow is arranged between the inlet opening and the measuring tube and / or between the measuring tube and the outlet opening. The flow straightener is configured as a separate component part, whichis secured on the holding device by a form-locking or force-locking connection. The application also discloses a method for producing the flow meter that detects a flow rate of a fluid.

Description

technical field [0001] The invention relates to a flow meter for detecting the flow of a fluid, comprising: a housing having a flow channel through which fluid can be guided from an inlet opening of the housing to an outlet opening of the housing; a measuring tube, The measuring tube is inserted into the flow channel and limits the flow cross-section in a portion of the flow channel; and a holding device by which the measuring tube is held on the housing. In addition, the invention also relates to a method for manufacturing a flow meter. Background technique [0002] The flow rate through the flow channel can be measured by an ultrasonic meter. In this case, two ultrasonic transducers are used, one of which emits ultrasonic waves and the other one receives them. By measuring the propagation time of ultrasound waves between these ultrasonic transducers or the difference in propagation time between the directions of transmission, it is possible to detect the flow velocity an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/66G01F1/22
CPCG01F1/22G01F1/662G01F1/667
Inventor R·梅斯塔勒M·埃夫H-M·松嫩贝格
Owner DIEHL METERING