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Middle through hole dynamic throttling element like target water meter

A technology of throttling components and components, which is applied in the field of remote water meters, can solve the problems that the differential pressure flowmeter does not take advantage of the throttling device, and achieve the effects of simple structure, strong anti-clogging ability, and wide application range

Active Publication Date: 2018-04-03
王可崇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is a pity that these European and American scientists were limited by the research mode of Torricelli's fixed throttling element, and did not realize that the fixed throttling element is actually suitable for the laboratory working environment, which led to the differential pressure flowmeter they developed Did not give full play to all the advantages that the throttling device should have

Method used

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  • Middle through hole dynamic throttling element like target water meter
  • Middle through hole dynamic throttling element like target water meter
  • Middle through hole dynamic throttling element like target water meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] exist figure 1 In the embodiment, the moving Venturi tube target 1 is located between the inlet and outlet channels of the watch case 4, the elastic sensitive element of the force sensor adopts a double-hole cantilever beam 2, and the upper end of the double-hole cantilever beam 2 is fixed on the watch case cover 5, The lower end is fixed together with the moving Venturi tube target 1 through connecting bolts 7 . After the water flows in from the inlet of the watch case 4, most of the water flows through the middle through hole of the moving Venturi tube target 1 to form a main flow. Due to the pressure difference between the front and back of the moving Venturi tube target 1, driven by the pressure difference, a small part of the water flows from the The annular gap at the front end of the moving Venturi tube target 1 flows out to the external chamber to form a tributary flow, and the tributary flow flows from the external chamber through the annular gap at the rear en...

Embodiment 2

[0024] exist figure 2 In the implementation scheme, it can be seen that this example and figure 1 The embodiments of the invention have many similarities in structure, but the force sensors of the two are different. In this embodiment, the elastic element of the force sensor adopts the flexible tube elastic body 9 of the thin cylindrical wall, and the moving Venturi tube type target 1 is fixedly connected to the lower end of the measuring rod 8, and the upper end of the measuring rod 8 is connected to the flexible tube elastic body. 9 thicker cylinder top covers are fixedly connected. When water flows through the moving Venturi tube target 1, the flow of water generates a thrust corresponding to the water flow on the moving Venturi tube target 1, and the thrust is transmitted to the flexible tube elastic body 9 through the measuring rod 8 , a bending moment is generated on the thin-walled cylinder of the flexible tube elastic body 9, and the measuring bridge composed of fou...

Embodiment 3

[0027] exist image 3 In the implementation scheme, it can be seen that this example and figure 1 The embodiments of the invention have many similarities in structure, but the sensors of the two are different. In this embodiment, a capacitive displacement sensor with a differential capacitance structure is adopted, and its core components are two groups of symmetrically installed capacitors, namely two fixed capacitive static electrodes 11 and two capacitive measuring rods 14 top Two groups of variable parameter capacitors composed of elastic tubes 13 swinging capacitive electrodes 10. The two sets of variable parameter capacitors adopt a differential capacitor structure, which can improve the sensitivity and range ratio of the water meter. From image 3 It can be seen that the Venturi tube target 1 is fixedly installed on the cup-shaped measuring rod 14, the cup-shaped measuring rod 14 is sealed and connected to the elastic tube 13, the elastic tube 13 is sealed and connec...

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Abstract

The invention discloses a middle-through-hole dynamic throttling element target type remote-reading water meter which is composed of the components of a middle-through-hole dynamic throttling element target, a meter housing, a meter housing cover and a sensor. The meter housing is hermetically connected with the meter housing cover for forming a water meter housing. The middle-through-hole dynamic throttling element target is arranged between the housing inlet and a housing outlet. After water flows in through the housing inlet, the majority of water flows through the middle through hole of the target, and the minority of water flows into an outer chamber through a communicating part between two chambers at the front end of the target and then flows back into an inner chamber through a communicating part between the two chambers at the back end of the target. After the majority of water and the minority of water are collected in the inner chamber, the collected water flows out of the housing outlet. The target is fixedly connected with one end of the sensor. The other end of the sensor is fixedly connected with the meter housing cover. According to the water meter, the advantages of the throttling device are more sufficiently exerted. The middle-through-hole dynamic throttling element has advantages of simpler structure, lower price, smaller resistance loss, longer service life, higher precision, better anti-blockage performance, wider application range, etc. Furthermore the middle-through-hole dynamic throttling element target type water meter has a wide development prospect.

Description

technical field [0001] The invention relates to an instrument for realizing water flow detection in the technical field of automatic detection, in particular to a remote water meter. Background technique [0002] Water meters are effective measurement tools for water metering and charging and water conservation management. Among them, small-diameter household water meters account for the vast majority of the total water meter consumption. While realizing meter reading to households in the urban water supply industry, it also brings disturbing, difficult and unsafe factors to households. In order to solve the above-mentioned problems of household meter reading, the Ministry of Construction launched two types of smart water meter solutions, remote water meter and IC card meter, and issued corresponding technical standards. Although smart water meters are the future development direction of the industry, there are still many areas to be improved in terms of base meter technolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/36G01F1/40G01F1/44
Inventor 王可崇
Owner 王可崇