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Water meter measurement stabilizing method

A stabilization method, water meter technology, applied in the direction of volume measurement, measurement device, measurement capacity, etc., to achieve the effect of ensuring stability

Inactive Publication Date: 2017-11-03
南京水门电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The resulting change in the coefficient of measurement

Method used

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Embodiment Construction

[0014] The method for stabilizing water meter measurement comprises the following process steps:

[0015] 1) Inject the paraffin wax with light specific gravity and low melting point into the injection-molded impeller cavity;

[0016] 2) Fill the cavity of the impeller;

[0017] 3) Press into the agate sleeve, so that the impeller has no cavity with uncertain specific gravity, and the specific gravity and buoyancy of the impeller in the water are fixed, so that the temperature change of the water cannot affect the flow speed ratio of the water meter, thus ensuring the stability of the measurement accuracy of the water meter .

[0018] Further describe technical solution of the present invention in conjunction with accompanying drawing:

[0019] The method for stabilizing water meter measurement comprises the following process steps:

[0020] 1) if figure 2 Place the injection molded impeller part upside down on the work fixture table, as shown in ;

[0021] 2) According ...

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Abstract

The invention relates to a water meter measurement stabilizing method. The method comprises the steps that 1), paraffin with low specific gravity and low melting point is poured in an injection molded cavity of an impeller; 2), the cavity of the impeller is filled to the full; 3), an agate sleeve is pressed in the cavity, so that the cavity with uncertain specific gravity does not exist in the impeller; the specific gravity and buoyant force of the impeller in water are fixed, accordingly the flow speed ratio of a water meter cannot be influenced by the temperature change of the water, and thus the stability of measurement precision of the water meter is guaranteed. The method has the advantages that a significant measurement component, namely the cavity of the impeller, of the water meter is removed; the situation that volume change of different mediums in the cavity of the impeller changes the specific gravity of the impeller is avoided, accordingly the root cause which affects the flow rotation speed ratio of the water meter is eliminated, and the stability of the measurement precision of the water meter is guaranteed.

Description

technical field [0001] The invention relates to a process method for stabilizing the measurement of a water meter, especially for a mechanical sensor type electronic water meter without a mechanical gear set, and belongs to the field of flow measurement. Background technique [0002] Inside the axis of most traditional water meter impellers, the upper part of the impeller agate sleeve is a nearly cylindrical cavity, such as figure 1 shown. [0003] In order to reduce the material used to manufacture the impeller and reduce the cost; it is designed to ensure uniform thickness of the injection molding material and reduce the deformation of the parts. The cavity of this impeller is not sealed. After immersion in water, water can gradually invade and occupy part of the cavity. Due to the large difference in specific gravity between water and air, the buoyancy of the impeller filled with air cavity is much different than that of the impeller with water in the cavity. In parti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/02G01F15/00
CPCG01F15/02G01F15/006
Inventor 姚平壤
Owner 南京水门电子有限公司
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