CN2041422U

CN2041422U - Uniform speed tube shunting type water meter

Info

Publication number: CN2041422U
Application number: CN 88209175
Authority: CN
Inventors: 黄鸣歧; 张国澄
Original assignee: WUXI WATER METER FACTORY JIANGSU PROV
Current assignee: WUXI WATER METER FACTORY JIANGSU PROV
Priority date: 1988-07-30
Filing date: 1988-07-30
Publication date: 1989-07-19

Abstract

The utility model relates to a uniform speed tube shunting type water meter, comprising a flange, a steel tube, an incident flow tube, a backflow tube and a shunting meter. The utility model is characterized in that a plurality of incident flow holes are arranged on the incident flow tube for measuring the average flow speed of the fluid on the entire end face. The utility model has the advantages of low cost, high effectiveness, simple structure, high reliability and small loss and low energy consumption of the water head; the uniform speed tube shunting type water meter is applicable for the measurement of the big flow of the pump; the measurement precision is 2-2.5% higher than the original measurement precision.

Description

Uniform speed tube shunting type water meter

A kind of even speed tube shunting water meter belongs to the gauging instrument device.

Before the utility model even speed tube shunting water meter is made, the comparatively approaching water meter of present technique by flange, steel pipe, meet stream pipe, back of the body stream pipe, shunting table and form.Be respectively equipped with a flow hole and back of the body discharge orifice in the center of meeting stream pipe and back of the body stream pipe.But this water meter can not be used for measuring the mean flow rate of fluid on the whole end face, in actual motion, measuring accuracy is low, fluctuation of service, can not expire in the user measure needs.

The purpose of this utility model provides the mean flow rate of fluid on the whole end face of a kind of energy measurement, measuring accuracy height, the even speed tube shunting water meter of stable and reliable operation.

The utility model even speed tube shunting water meter mainly by flange, steel pipe, meet stream pipe, back of the body stream pipe, shunting table and form.It is characterized in that meeting the stream pipe and go up several flow holes of layout, measure the flow velocity on the whole end face.

Description of drawings:

Fig. 1 is the utility model even speed tube shunting water meter structure front view;

Fig. 2 is the utility model even speed tube shunting water meter A-A cut-open view;

Embodiment during following the utility model even speed tube shunting water meter is incited somebody to action in conjunction with the accompanying drawings is further described:

Steel pipe 2 is welded into watchcase integral body with flange 1,8, can be connected with screw with tested pipeline, meeting stream pipe 3 centers to 1 to 5 flow hole of two limits difference symmetric arrangement, the diameter in hole is respectively 3 to 9 millimeters, is used for measuring the mean flow rate of end face upper reaches body.Meeting stream pipe 3 and back of the body stream pipe 7, to insert steel pipes 2 welderings fixed, and top connects with count table 5 through ball valve 4,6 after respectively, and flow hole 9 enters tested current on the stream pipe 3 through meeting, and promotes water meter 5 countings, goes into tested pipeline 7 times by carrying on the back to flow to manage.

The utility model even speed tube shunting type water meter compared with prior art has the following advantages: 1, consumptive material is few, weight is light, cost is low; 2, the loss of flood peak is little, and energy consumption is low, is applicable to machine delivery side of pump Large flow; 3, do not cut off the water and can overhaul, simple in structure, stable and reliable operation, precision than original water gauge up to 2 ,～2.5%.

Claims

1, a kind of even speed tube shunting water meter belongs to the gauging instrument device, it by flange, steel pipe, meet stream pipe, back of the body stream pipe, shunting table and form, it is characterized in that meeting the stream pipe and go up several flow holes of layout.

2, even speed tube shunting water meter according to claim 1 is characterized in that described flow hole meets stream tube hub position two limit symmetries relatively.