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Cross-shaped combiner and its flowmeter

A technology of splitting, confluence and flow splitter, applied in the direction of direct mass flowmeter, mass flow measurement device, etc., can solve the problems of inaccurate detection results, long process joint distance, difficult to measure effectively, etc. compact effect

Active Publication Date: 2016-08-24
东京计装(上海)仪表有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] U.S. Patent Document No. US4,984,472, date of authorization 1991-01-15, discloses a kind of APPARATUS FOR MASSFLOW RATE AND DENSITY MEASUREMENT (flow density measurement device), but the technical shunt is a plane symmetrical structure and is located on the same horizontal plane, adopts the shape Different Y-shaped pipe splitting / combining structures directly lead to longer branch pipe sections, and at the same time, the separation and confluence on the main axis makes the distance between the process joints longer. Such an overall structure leads to large pressure loss and inaccurate test results. Difficult to measure effectively

Method used

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  • Cross-shaped combiner and its flowmeter
  • Cross-shaped combiner and its flowmeter
  • Cross-shaped combiner and its flowmeter

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1a-Figure 1c As shown, this embodiment relates to a cross-shaped junction, including: an inlet port 1 and an outlet port 2 arranged coaxially opposite each other, and a diverter 3 connected to the inlet port 1 and a collector connected to the outlet port 2 respectively. 4, wherein: both the diverter 3 and the confluence 4 are composed of a Y-shaped main pipe-branch structure of the same shape.

[0039] The diverter 3 and the confluence 4 in this embodiment are in the form of trunk-pipe cross distribution, which consists of a trunk pipe 5, two identical and mirror-symmetrical branch pipes 6, and an arc-shaped guide section 7 to form a Y-shaped structure. The guide section 7 is connected between the inlet end 1 and the main pipe 5 or between the outlet end 2 and the main pipe 5. The central axes of the main pipe 5 and the branch pipe 6 are straight lines, and the diverter and the confluence are divided into cross shapes. The center of gravity of the combi...

Embodiment 2

[0041]Such as Figure 2a-Figure 2b As shown, the diverter and confluence in this embodiment are in the form of branch-branch cross distribution, which consists of a main pipe 5, two non-mirror-symmetrical first branch pipes 61 and second branch pipes 62 to form a Y-shaped structure, and the two second branch pipes The first branch pipe 61 is disposed on the inner side of the two second branch pipes 62 .

[0042] Such as Figure 2b As shown, the central axes of the two main pipes 5 are located in the middle of the overall cross-shaped confluence;

[0043] Such as Figure 2b As shown, the centers of the output end planes of the two first branch pipes 61 and the two second branch pipes 62 are located on the same horizontal plane, that is, the split flow cutting plane p, and the flow splitter and the confluence divide the center of gravity of the flow combiner in a center-symmetric manner. layout.

[0044] The divider and combiner adopting this distribution form can use either...

Embodiment 3

[0047] Such as Figure 3a-Figure 3b As shown, the diverter and confluence in this embodiment are in the form of trunk-branch cross distribution, which is a Y-shaped structure composed of a trunk pipe 5, two identical and mirror-symmetrical branch pipes 6, and an arc-shaped guide section 7. The arc-shaped guide section 7 is connected between the inlet port 1 on the side of the diverter 3 and the main pipe 5 and between the main pipe 5 and the branch pipe 6 on the side of the confluence 4, and the Y-shaped structure of the diverter 3 or confluence 4 Located on the same vertical plane, they form a cross-shaped structure.

[0048] Such as Figure 3b As shown, the main pipe 5 of the confluence 4 described in this embodiment is arranged coaxially with the inlet port 1 and the outlet port 2, corresponding to the central axis 1 of the main pipe 5 of the diverter 3 1 And the central axis l of the branch pipe 6 of the confluence 4 2 The radius is the path of the main road.

[0049] ...

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Abstract

A cross-shaped flow combiner and its α-structure double vibrating tube Coriolis mass flowmeter in the field of fluid measurement technology. The cross-shaped flow combiner and its flowmeter include: an inlet port and a The outlet port, and the diverter connected to the inlet port and the confluence connected to the outlet port respectively, wherein: the diverter and the confluence are all composed of Y-shaped trunk-branch structures of the same shape; the diverter and confluence According to the different structure of main pipe-branch pipe, it includes: main pipe-main pipe cross distribution form; branch pipe-branch pipe cross distribution form; main pipe-branch pipe cross distribution form. The present invention adopts a double-bend pipe structure, and through the cross-shaped "divider-combiner" structure, the entire pipe system path is in the form of an alpha letter (or "you"-shaped structure). Since the diverter combiner adopts a cross structure, the included angle between the input pipe and the inlet straight pipe section of the vibrating tube and the flow angle between the vibrating tube outlet straight pipe and the output pipe section are all less than 90°.

Description

technical field [0001] The invention relates to a device in the technical field of fluid measurement, in particular to an α-structured cross-shaped flow combiner and a double vibrating tube Coriolis mass flowmeter thereof. Background technique [0002] Coriolis (Coriolis referred to as Coriolis for short) mass flowmeter is used to detect the mass flow rate by using the vibration phase difference on both sides of the vibrating tube caused by the Coriolis effect when the fluid flows through the vibrating tube. For high-precision measurement, the form of double bent tubes (or called: "double measuring tubes" or "double vibrating tubes", the same below) is usually used. In the published patents, the pipeline structure adopts a symmetrical design from the inlet / pipe to the splitter to the measuring tube, and then from the measuring tube to the confluence (that is, another splitter) to the outlet / pipe. . Among them, the design of ring, U-shaped and triangular measuring tubes is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/84
Inventor 陈立功逄强陆经伟罗宇陆皓姚迪斐秦家理
Owner 东京计装(上海)仪表有限公司