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Horizontal screw type water meter

A screw-wing and horizontal technology, applied in the field of horizontal screw-wing water meters, can solve the problems of poor coating, difficulty in breaking through the flow capacity and accuracy of horizontal screw-wing water meters, affecting the flow capacity and accuracy of water meters, and achieving anti-corrosion Good torsional strength and guaranteed balance

Active Publication Date: 2017-07-11
NINGBO LONGER METER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the horizontal screw-wing water meter in the prior art does not pay attention to the rotation balance of the impeller, so it is difficult to make a breakthrough in the flow capacity and accuracy of the existing horizontal screw-wing water meter, which has become a technical bottleneck
Moreover, the cladding between the shell and the core of the horizontal screw-wing water meter in the prior art is not good, and it cannot ensure that the water is concentrated through the impeller, which also affects the flow capacity and accuracy of the water meter to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The second axle 9 is made of the following raw materials: 80 parts of PA12, Al 2 o 3 5 parts, 5 parts of glass fiber, 5 parts of polyetheretherketone, 0.5 parts of coupling agent, 0.8 parts of antioxidant, 1 part of tetraethyl orthosilicate, and 5 parts of carbon black. The coupling agent is silane coupling agent KH550. The antioxidant is one of antioxidant B225 or antioxidant B215.

[0038] The preparation method comprises the following steps:

[0039] 1) After the raw materials are prepared according to the above formula ratio, PA12, Al 2 o 3 Mix glass fiber, polyether ether ketone, and tetraethyl orthosilicate evenly in a high-speed mixer, then add silane coupling agent KH550, and react for 8-10 hours at 45-60°C under the protection of an inert gas;

[0040] 2) Then add antioxidant B225 and carbon black, mix well, and dry the above mixture in an oven at 85-110°C for 1-3h;

[0041] 3) Extrude and granulate the above-mentioned mixture on a twin-screw extruder, a...

Embodiment 2

[0043] The second axle 9 is made of the following raw materials: 85 parts of PA12, Al 2 o 3 6 parts, 10 parts of glass fiber, 8 parts of polyether ether ketone, 0.7 parts of coupling agent, 1.2 parts of antioxidant, 3 parts of tetraethyl orthosilicate, and 9 parts of carbon black.

[0044] The preparation method comprises the following steps:

[0045] 1) After the raw materials are prepared according to the above formula ratio, PA12, Al 2 o 3 , glass fiber, polyether ether ketone, and tetraethyl orthosilicate are mixed uniformly in a high-speed mixer, then add silane coupling agent KH550, and react at 45-60°C for 8-10 hours under the protection of an inert gas;

[0046] 2) Then add antioxidant B215 and carbon black, mix well, and dry the above mixture in an oven at 85-110°C for 1-3h;

[0047] 3) extruding and granulating the above-mentioned mixture on a twin-screw extruder, and processing the obtained pellets into a second axle (9) on an injection machine.

Embodiment 3

[0049] The second axle 9 is made of the following raw materials: 100 parts of PA12, Al 2 o 3 8 parts, 15 parts of glass fiber, 15 parts of polyether ether ketone, 1 part of coupling agent, 1.5 parts of antioxidant, 5 parts of tetraethyl orthosilicate, and 10 parts of carbon black.

[0050] The preparation method comprises the following steps:

[0051] 1) After the raw materials are prepared according to the above formula ratio, PA12, Al 2 o 3 Mix glass fiber, polyether ether ketone, and tetraethyl orthosilicate evenly in a high-speed mixer, then add silane coupling agent KH550, and react for 8-10 hours at 45-60°C under the protection of an inert gas;

[0052] 2) Then add antioxidant B215 and carbon black, mix well, and dry the above mixture in an oven at 85-110°C for 1-3h;

[0053] 3) Extrude and granulate the above-mentioned mixture on a twin-screw extruder, and process the obtained pellets into a second axle (9) on an injection machine.

[0054] After testing, the weig...

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Abstract

The invention discloses a horizontal screw-wing water meter. One side of the impeller (7) is a first axle (7.1) integrally formed with the impeller (7), and the end of the first axle (7.1) close to the impeller (7) is Conical truncated, the other side of the impeller (7) is tightly fitted with a second wheel shaft (9), which is a worm shaft for the transmission mechanism; it also includes two balance weights (8), two balance weights The blocks (8) are respectively arranged in the installation cavity located on both sides of the impeller (7); the number of blades (7.2) of the impeller (7) is 9 pieces, the lead of the blades (7.2) is 350-400mm, and the blades (7.2) There is an inclined surface (7.2.1) on the upper side of one side. The horizontal screw-wing water meter has a compact structure, better balance of impeller rotation, good cladding between the core and the shell, greater flow capacity, and high precision. higher.

Description

technical field [0001] The invention relates to the field of water meters, in particular to a horizontal screw-wing water meter. Background technique [0002] The horizontal screw-wing water meter is a kind of speed-type water meter, which is suitable for use in large-diameter pipelines, and is characterized by large flow capacity and small pressure loss. When the water flows into the water meter, it impacts the impeller along the axial direction and then flows out after rotating around the rotating shaft. The speed of the impeller is proportional to the water flow speed. After being driven by the transmission mechanism, the total amount of water passing through the water meter will be displayed on the indicating device. Screw-wing water meters are divided into two categories: horizontal screw-wing water meters and vertical screw-wing water meters. Most of the industrial meters used in China are horizontal screw-wing water meters. The horizontal screw-wing water meter is w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/06G01F15/00
Inventor 柳龙子
Owner NINGBO LONGER METER
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