A shaftless liquid turbine flowmeter with a self-powered meter head

A liquid turbine and flow meter technology, applied in the direction of volume/mass flow generated by mechanical effects, dynamic effects by detecting fluid flow, etc. The effect of small resistance and improved measurement accuracy

Active Publication Date: 2020-03-10
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] These optimization technologies have reduced the resistance of the fluid in the flow process to a certain extent and improved the measurement accuracy of the turbine flowmeter, but they have not realized the miniaturization and integration of the flowmeter design.

Method used

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  • A shaftless liquid turbine flowmeter with a self-powered meter head
  • A shaftless liquid turbine flowmeter with a self-powered meter head

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Such as figure 1 and figure 2 As shown, a shaftless liquid turbine flowmeter with a self-powered meter head includes an outer shell 1, an inner shell 5 and a meter head 2. In this embodiment, the outer shell 1 and the inner shell 5 are both cylindrical shells body, the inner housing 5 is coaxially installed in the outer housing 1 through a pair of tapered roller bearings 4, a relatively free rotation pair is formed between the inner housing 5 and the outer housing 1, and the outer housing 1 and the inner housing 5 are set There are a first port 10 and a second port 11 which are coaxially arranged for fluid in and out, and the inner casing 5 is provided with a shaftless impeller 8, specifically: the inner surface of the inner casing 5 is machined to fix a set of impellers so that The root of the impeller is integrated with the inner surface of the inner casing...

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Abstract

The invention discloses a shaftless liquid turbine flow meter with a self-powered meter head. The liquid turbine flow meter comprises an outer shell, an inner shell and the meter head, the inner shellis coaxially installed in the outer shell, and a relatively free rotating pair is formed between the inner shell and the outer shell; the outer shell and the inner shell are provided with a first port and a second port which are used for a fluid to flow in and out and are coaxially formed; a shaftless impeller is arranged in the inner shell, and a magnet is arranged on the outer surface of the inner shell; a coil capable of cutting the magnetic induction line of the magnet is arranged in the outer shell, the coil is connected with the interior of the meter head through a wire; the meter headcomprises a conversion circuit, the conversion circuit is used for converting induction current of the coil into a measurable potential and supplying power to the meter head, and the flow of the fluidis measured by measuring the induced current and potential of the coil. The symmetrical shaftless impeller is used, so that the flow direction of the fluid is not limited, the resistance of fluid flowing is reduced, and measurement is more accurate; current generated through electromagnetic induction can also supply power to the meter head, and an external power source does not need to be added to the meter head.

Description

technical field [0001] The invention belongs to the field of measuring instruments, and relates to a liquid flowmeter, in particular to a shaftless liquid turbine flowmeter with a self-powered meter head. Background technique [0002] (1) Characteristics of liquid turbine flowmeter [0003] Liquid turbine flowmeter is a speed-type measuring instrument with high measurement accuracy, fast response speed, wide measurement range, small pressure loss, wide flow range ratio, high accuracy, good anti-vibration and anti-pulsation flow performance, low price, It is widely used in industrial production due to the advantages of convenient installation. Liquid turbine flowmeters are widely used in petroleum, chemical industry, electric power, building water supply and drainage, central air conditioning and other fields, and are also widely used in trade measurement. For liquid turbine flowmeters, improving its quality is crucial. [0004] (2) Working principle of liquid turbine flow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/32
CPCG01F1/32
Inventor 文远高夏雨琳葛冀欢郭琼琼夏世斌梁金琳
Owner WUHAN UNIV OF TECH
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