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Impeller type flowmeter

A flowmeter and impeller-type technology, which is applied in the field of impeller-type flowmeters, can solve the problems of poor durability and accuracy, high cost, and large structural size of flowmeters, and achieve improved stability and precision, light weight, and reduced processing volume effect

Inactive Publication Date: 2008-03-26
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of large structural size, high cost, and poor durability and accuracy of the flowmeter in the prior art, the present invention proposes an impeller-type flowmeter

Method used

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  • Impeller type flowmeter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The present embodiment comprises base table seat 1, base table cover 2, support shaft 5, impeller blade 3, induction sheet 6 and inductance head 7, wherein base table seat 1, base table cover 2, support shaft 5, impeller blade 3 all utilize Modified polyphenylene ether is made of MPPO engineering plastics, and all parts are integrally formed by injection molding process.

[0015] The base meter seat 1 is connected to the water pipes at both ends of the flow meter, and cooperates with the base meter cover 2 to form the shell of the heat meter; There are respectively positioning holes 4, which are formed by merging two semicircular holes distributed at the junction of the base table base 1 and the base table cover 2, the diameter of which is the same as that of the support shaft 5 of the table core; the impeller blades 3 Injection molding is used for overall molding, and there is a shaft hole in the impeller, and the inner diameter of the shaft hole is slightly the same a...

Embodiment 2

[0018] The present embodiment comprises base table seat 1, base table cover 2, support shaft 5, impeller blade 3, induction sheet 6 and inductance head 7, wherein base table seat 1, base table cover 2, support shaft 5, impeller blade 3 all utilize Polyphenylene sulfide is made of PPS engineering plastics, and all parts are integrally formed by injection molding process.

[0019] The base meter seat 1 is connected to the water pipes at both ends of the flow meter, and cooperates with the base meter cover 2 to form the shell of the heat meter; There are respectively positioning holes 4, which are formed by merging two semicircular holes distributed at the junction of the base table base 1 and the base table cover 2, the diameter of which is the same as that of the support shaft 5 of the table core; the impeller blades 3 Injection molding is used for overall molding, and there is a shaft hole in the impeller, and the inner diameter of the shaft hole is slightly the same as the ou...

Embodiment 3

[0022] The present embodiment comprises base table seat 1, base table cover 2, support shaft 5, impeller blade 3, induction sheet 6 and inductance head 7, wherein base table seat 1, base table cover 2, support shaft 5, impeller blade 3 all utilize Polyamide is made of PA engineering plastics, and all parts are integrally formed by injection molding.

[0023] The base meter seat 1 is connected to the water pipes at both ends of the flow meter, and cooperates with the base meter cover 2 to form the shell of the heat meter; There are respectively positioning holes 4, which are formed by merging two semicircular holes distributed at the junction of the base table base 1 and the base table cover 2, the diameter of which is the same as that of the support shaft 5 of the table core; the impeller blades 3 Injection molding is used for overall molding, and there is a shaft hole in the impeller, and the inner diameter of the shaft hole is slightly the same as the outer diameter of the b...

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Abstract

This invention relates to turbine flow meter, which uses base socket, meter cover and turbine leaf by engineer integral injection shaping, wherein, meter chip supportive axis is fixed inside position hole on connection part between basic meter socket and basic meter cover; fixing the turbine leaf onto meter chip supportive axis through axis bear and fixing the sensor chip onto leaf and fixing electrical sensor probe onto relative meter cover outside surface.

Description

(1) Technical field: [0001] The invention relates to the field of building heating and water supply, and relates to an impeller type flowmeter. (2) Background technology [0002] Household metering and billing of heating needs to be measured by heat meters. The mechanical heat meters in the prior art are composed of an impeller flow meter for measuring hot water flow and two thermometers for measuring the temperature of supply water and return water. The impeller flow meter Similar to a mechanical water meter, it consists of a base base, a base cover and a watch movement. When the water flows through the impeller-type flowmeter, it drives the impeller in the core to rotate, and the number of rotations of the impeller represents the amount of water passing through, and the number of rotations of the impeller is sent out through the sensor on the impeller and the signaling device on the impeller cover . [0003] The manufacturing method of the impeller-type flow meter in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F15/00G01F1/05G01K17/10
Inventor 李世武
Owner NORTHWESTERN POLYTECHNICAL UNIV