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Transmitting type impeller of heat meter flow gauge

A technology of flowmeter and heat meter, which is applied in the direction of measuring heat, volume/mass flow generated by mechanical effect, and dynamic effect by detecting fluid flow, etc. , to achieve the effect of good dynamic balance, high impeller uniformity and simple processing technology

Inactive Publication Date: 2010-12-01
QINGDAO HIWITS METER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of impeller has some shortcomings, which are as follows: the embedded silicon steel sheet reduces the uniformity of the impeller and deteriorates the dynamic balance; in addition, in order to embed the silicon steel sheet, it is necessary to carry out two steps during the injection molding process of the impeller. Single injection molding, complex process, increased processing difficulty, high cooling temperature after injection molding, causing impeller deformation

Method used

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  • Transmitting type impeller of heat meter flow gauge
  • Transmitting type impeller of heat meter flow gauge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The sending type impeller of the heat meter flowmeter in this embodiment is composed of a sending plate 1 , a blade 2 , a hub 3 , a shaft sleeve 4 and a reinforcing rib 5 . The surface of the sending impeller is chrome-plated. The sending board 1 is used not only as a flow sensor, but also as a flow signal sender. The sending plate 1, the blade 2, the hub 3 and the reinforcing rib 5 are made of engineering plastic MPPO, and the bushing 4 is made of ceramic material zirconia, which are integrally injection molded; The axial direction is vertical, located between two blades 2 and fixedly connected with the sides of the blades 2 . The sending boards 1 are symmetrically distributed around the shaft sleeve 4 . The reinforcing rib 5 is a strip plate, and the two ends of the plate are fixedly connected with the middle part of the blade 2 respectively.

Embodiment 2

[0011] The sending type impeller of the heat meter flowmeter in this embodiment is composed of a sending plate 1 , a blade 2 , a hub 3 , a shaft sleeve 4 and a reinforcing rib 5 . The surface of the sending impeller is made of silicon-plated steel. The sending board 1 is used not only as a flow sensor, but also as a flow signal sender. The sending board 1, the blade 2, the hub 3 and the rib 5 are made of engineering plastic PPO, and the bushing 4 is made of ceramic material silicon nitride, which are integrally injection molded; The axial direction of 4 is vertical, it is located between two blades 2 and is fixedly connected with the side of blade 2; The reinforcing rib 5 is a strip plate, and the two ends of the plate are fixedly connected with the middle part of the blade 2 respectively.

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Abstract

The invention relates to a transmitting type impeller of a heat meter flow gauge, consisting of a transmitting plate (1), vanes (2), a hub (3), a shaft sleeve (4) and reinforcing ribs (5), wherein the surface of the transmitting type impeller is metallized; the transmitting plate can serve as a flow sensor and a transmitter of flow signals; the transmitting plate, the vanes, the hub and the reinforcing ribs are integrally poured and molded by engineering plastics and ceramic materials for a shaft sleeve; and the transmitting plate is in a strip shape, is arranged between two vanes and is fixedly connected with lateral sides of the vanes, and the transmitting plate plane is vertical to the axis of the shaft sleeve. The transmitting type impeller serving as a core component of the heat meter flow gauge has the advantages of high impeller uniformity, good dynamic balance and simple processing technique.

Description

1. Technical field [0001] The invention relates to the field of heat metering for building heating, and relates to a sending type impeller of a heat meter flowmeter. 2. Background technology [0002] Building heating heat metering is an important energy-saving and environmental protection measure. Heating heat metering can be realized by installing a heat meter in the user's heating pipeline. The mechanical heat meter used for building heating heat measurement is equipped with an impeller flowmeter, and the impeller of the impeller flowmeter is its key component. The heat meter impeller flowmeter in the prior art adopts a multi-stream or single-stream impeller structure. Although this impeller flowmeter has the advantages of high measurement stability and accuracy, the impeller flowmeter with this structure is easy to It is blocked by sundries of heating and hot water, resulting in a high failure rate of the heat meter, large measurement errors, and short service life. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K17/00G01F1/28
Inventor 方欣李岳李新兴李世武
Owner QINGDAO HIWITS METER