CN200968867Y

CN200968867Y - Minor bend-type elbow meter

Info

Publication number: CN200968867Y
Application number: CN 200620128100
Authority: CN
Inventors: 唐积行; 刘颖录
Original assignee: 张粟喆; 粟博
Priority date: 2006-11-10
Filing date: 2006-11-10
Publication date: 2007-10-31
Anticipated expiration: 2016-11-10

Abstract

The utility model relates to a centrifugal type flow meter used for measuring the flow rate, in particular to a slightly bent pipe flow meter which comprise a middle bent pipe, a top and bottom pressure pipe arranged at the actuate top of the middle bent pipe whose end is connected with a transition bent pipe. A flange is connected with the measured pipe and positioned at the end of the transition bent pipe. The middle bent pipe is a bent pipe with a 45 degrees angle and the transition bent pipe is a bent pipe with a 22.5 degrees angle and the inlet and outlet are at the same axes. The key different point between the slightly bent pipe flow meter and an S style bent pipe flow meter is that the former adopts the bent pipe with a 45 degrees angle, but not with a 90 degrees angle. Compared with the S style bent pipe flow meter, the slight bent pipe flow meter is smaller and lighter, therefore is more easily to be transported or installed and greatly reduces damage caused by the pressure of the pipe and at the same time supply a plurality of selectivity for the bent pipe flow meter.

Description

Little curved elbowmeter

Technical field:

The utility model relates to the centrifugal flowmeter that is used for flow measurement, particularly a kind of little curved elbowmeter.

Background technology:

The centrifugal flowmeter that existing applying centrifugal force principle is measured flow is counted the master with 90 ° of winding pipe flow rates, be installed in the L type elbowmeter at nature turning, and serve as the S type elbowmeter on the straight pipeline of being installed in that relies on that development comes with 90 ° of bend pipes, S type elbowmeter installation dimension is long, quality is overweight, and processing, transportation, installation are all inconvenient.

Summary of the invention:

The utility model is intended to solve problems such as S type elbowmeter installation dimension is long, the overweight caused processing of quality, transportation, installation inconvenience, and a kind of small volume and less weight is provided, can reduces the pressure loss greatly, all installable little curved elbowmeter on the straight pipeline under the spatiality arbitrarily.

The technical scheme that addresses the above problem is: a kind of little curved elbowmeter, comprise middle part bend pipe, the pipe of pressure up and down that is loaded on this bend pipe arc top, middle part, the transition bend pipe that is connected with this bend pipe end, middle part, be loaded on this transition bend pipe end with the tested pipeline flange connecting, described middle part bend pipe is 45 ° of bend pipes, described transition bend pipe is 22.5 ° of bend pipes, and it is imported and exported on same axis.

The key that the utility model is different from S type elbowmeter is to adopt is that the α value is the bend pipe of 45 ° bend pipe but not 90 °, compare with S type elbowmeter, small volume and less weight, being convenient to Product transport installs, and greatly reduce the pressure loss of pipeline, increased various selectivity of elbowmeter simultaneously.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Embodiment:

Provide a specific embodiment of the present utility model below in conjunction with accompanying drawing.

A kind of little curved elbowmeter, by middle part bend pipe 1, pressure pipe 2, transition bend pipe 3, flange 4 are formed up and down, described middle part bend pipe 1 is 45 ° of bend pipes, and promptly the α angle is 45 °, has upper and lower pressure port on the vertical plane at its arc top and upper and lower pressure pipe 2 is housed respectively; Described transition bend pipe 3 is 22.5 ° of bend pipes, be that the β angle is 22.5 °, one end and this middle part bend pipe 1 end are welded to connect, and the other end is equipped with and tested pipeline flange connecting 4, and transition bend pipe 3 its fluid inlets of left end and transition bend pipe 3 its fluid egress points of right-hand member are positioned on the same axis.

When fluid little curved winding pipe flow rate timing of flowing through, the constraint that fluid is subjected to crooked pipeline 3 forces flow velocity to change the direction riding, fluid just has centrifugal force to produce and affacts on the pipeline, the size of centrifugal force is relevant with flow velocity and bending radius, the pressure that outside tube wall is subjected to increases, the pressure that madial wall is subjected to reduces, and this pressure differential is delivered to differential pressure transmitter by pressure pipe 2 and detected, and can calculate flow through converting.

Claims

1, a kind of little curved elbowmeter, comprise middle part bend pipe, the pipe of pressure up and down that is loaded on this bend pipe arc top, middle part, the transition bend pipe that is connected with this bend pipe end, middle part, be loaded on this transition bend pipe end with the tested pipeline flange connecting, it is characterized in that described middle part bend pipe is 45 ° of bend pipes, described transition bend pipe is 22.5 ° of bend pipes, and it is imported and exported on same axis.