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Pulse turbine rotor for measurement and flow meter with rotor

A turbine rotor, flow meter technology, applied to gas. field, able to solve problems such as difficult to obtain mathematical descriptions for experimental research on complex structures

Pending Publication Date: 2021-02-02
COMEM SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem of fluid flow measurement errors arising from the use of flowmeters intended for quasi-steady conditions under unsteady flow conditions has not been fully resolved due to the difficulty in obtaining a mathematical description of and experimental studies of this error phenomenon complex structure

Method used

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  • Pulse turbine rotor for measurement and flow meter with rotor
  • Pulse turbine rotor for measurement and flow meter with rotor
  • Pulse turbine rotor for measurement and flow meter with rotor

Examples

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Embodiment Construction

[0021] figure 1 is a cross-sectional view of a turbine flowmeter according to the present invention. The flow meter 1 comprises a liner assembly 20 and an outer body 30 with a flow channel formed between the inside of the flow meter, the inner surface of the body 30 and the outer surface of the liner assembly 20 . The measuring device in the flow meter according to the invention is an impulse turbine 2, the blades 11 of which are located in a vane assembly placed in the flow channel of the flow meter. The impulse turbine rotor 2 is mounted in a rotating system in a bushing block 20 via a shaft 21 and bearings 22 . Within the sides of the bushing 20 there is a mechanical gearbox element (not shown) that allows the rotational motion of the impulse turbine rotor 2 to be transmitted to the sensor and transducer assembly, allowing the rotor revolutions or rotational speed to be measured, which makes it possible to determine The measured volume flow.

[0022] The volume measureme...

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Abstract

The invention relates to a pulse turbine rotor (2) with a vane assembly (11) for measurement purposes. The vane assembly is designed to operate in a steady flow state in the case of a pressure difference [delta] p = 0 between the upstream side of the vane assembly of the pulsating turbine rotor and the downstream side of the vane assembly of the pulsating turbine rotor in the flow direction in a flow channel of a flow meter. The rotor is equipped with a compensation opening (14) located in a rotor disk, and is suitable for balancing a pressure differential between the pulsed turbine blade assembly upstream side and the pulsed turbine blade assembly downstream side resulting from the unstable flow condition. The invention also relates to a pulse turbine flow meter (1) of the pulse turbine rotor, wherein the flow channel is equipped with a compensation connector, the compensation connector is designed to direct flow from the upstream side of the rotor assembly of the turbine to the rotordisc of the pulse turbine, through the rotor disc of the pulse turbine, and out of the rotor disc of the turbine at the downstream side of the rotor assembly of the pulse turbine.

Description

technical field [0001] The subject of the invention is an impulse turbine rotor for measurement and a flow meter with the rotor. The invention is used to measure fluid flow, especially gas. Background technique [0002] Turbine flow meters with pulsating rotors are known in the art. Document US 4,186,603 discloses a classic turbine flowmeter design. One particular feature that distinguishes units with impulse rotors from units with reaction rotors is the lack of a pressure differential between the upstream and downstream sides of the rotor during steady state operation. [0003] Problems associated with the negative influence of pressure pulsations on the measurement of flow parameters are known in the prior art, in particular concerning turbine flowmeters, as seen in the publication "Metrologia przep "[Flow Metering] M.Turkowski, Warsaw 2018, Oficyna Wydawnicza Politechniki Warszawskiej, ISBN978-83-7814-697-1, Many known issues are described in this publication, along w...

Claims

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Application Information

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IPC IPC(8): G01F1/32G01F15/00
CPCG01F1/32G01F15/00G01F1/10G01F1/12
Inventor Z·马科斯基P·谢罗辛斯基K·斯基巴P·亚内切克
Owner COMEM SPA