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Three-tooth helical flow meter

A technology of three-tooth helix and flowmeter, which is applied in volume measurement, liquid/fluid solid measurement, and volume/mass flow generated by mechanical effects, etc. It can solve the problem of large number of rotor impeller blades, inaccurate sending pulse, and sensitivity to viscosity changes. and other problems, to achieve the effect of wide measurement range, strong and reliable components, and low pressure loss

Active Publication Date: 2013-01-30
SHANGHAI YINUO INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rotor impeller of this structure has a large number of blades and a complex structure. It is sensitive to the viscosity change of the liquid during use, and the precision is not high. The signal pulse is not accurate, which brings inconvenience to the use.

Method used

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the embodiments and accompanying drawings. Referring to FIGS. The inner cavity of the housing 10 is connected to the intelligent electronic counter 1 through a circuit. The three-tooth helical rotor 7 adopts a three-tooth helical type, the helix angle is between 50 and 60 degrees, and the tooth width is one-third of the lead; The outer circle of one side of the toothed helical rotor is fixedly connected with the sending disk assembly 3, and there is a gap between the outer circle of the sending dish assembly 3 and the lower end surface of the sensor 2; The signal sending disc assembly 3 is a signal source, and when the three-tooth helical rotor rotates, the signal of the sending disc assembly 3 continuously induces the sensor 2, and the sensor 2 transmits the signal to the intelligent electronic counter 1 through a circuit.

[0016] One end of the shaft 9 is fixedly connected to the hole of the le...

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Abstract

The invention relates to a three-tooth helical flow meter, which is characterized in that: a three-tooth helical rotor has a three-tooth helical shape; the tooth width is one third of the lead; a transmitting disk component is fixedly arranged on the excircle of one side of the three-tooth helical rotor; two shaft sleeves are fixedly arranged at both ends of the three-tooth helical rotor; a shaft is arranged in each shaft sleeve; one end of the shaft is fixed in a hole of a left bracket which is fixedly connected with a shell; and the other end of the shaft is fixed in a hole of a right bracket fixedly which is arranged on the shell. Compared with the prior art, the three-tooth helical flow meter has the advantages that: the change of a rotor helical angle reduces the adhesion of a measured medium and the sensitivity to the changed of medium viscosity, so the measurement accuracy meet the requirements of trade metering; and the ratio of the measurement range width to the measurement range is 15:1 and the pressure loss is low. The three-tooth helical flow meter has simple structure, firm and reliable components, high or low temperature resistance, high pressure resistance and high impurity resistance.

Description

【Technical field】 [0001] The invention is a measuring instrument suitable for the flow of solutions, liquids and gases in industries such as crude oil, petroleum products, food and chemical industry. 【Background technique】 [0002] There is a turbine flowmeter in the prior art, the structure of which adopts an impeller rotor. The rotor impeller of this structure has a large number of blades and a complex structure. It is sensitive to changes in the viscosity of the liquid during use, and the precision is not high, and the sending pulse is not accurate, which brings inconvenience to the use. 【Content of invention】 [0003] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a three-tooth spiral flowmeter. The intelligent electronic counter 1 is connected to the outside of the housing 10, the sensor 2 is connected to the inner cavity of the housing 10, and It is connected with the intelligent el...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/05G01F15/075
Inventor 郭井和郭芳
Owner SHANGHAI YINUO INSTR
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