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Multi-sound-path ultrasonic flow measuring pipe section body

A flow measuring tube and multi-sound path technology, which is applied in the direction of measuring flow/mass flow, measuring device, measuring capacity, etc., can solve the problems of high assembly requirements of ultrasonic flow measuring equipment, inability to achieve effective sound path measurement, and high production cost, Achieve the effect of comprehensively capturing flow state distortion, reducing the number of ultrasonic sensors, and improving measurement accuracy

Pending Publication Date: 2019-12-03
HUIZHONG INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the problem existing in the prior art is: in order to pursue high-precision measurement, the number of effective sound paths is continuously increased, so that the number of ultrasonic sensors also increases proportionally. Due to the large number of ultrasonic sensors arranged on an ultrasonic flow measurement device, Numerous ultrasonic sensors need to be arranged on the same pipe section body, which makes the structure of the pipe section body where the ultrasonic sensors are arranged more and more complicated, the processing accuracy is more and more strict, and the production cost is getting higher and higher. For the ultrasonic flow measurement equipment The assembly requirements are getting higher and higher, and the difficulty is getting bigger and bigger; and the number of sound paths is limited by the diameter of the pipe segment body. Under the condition that the size of the ultrasonic sensor remains unchanged, if the diameter of the pipe segment body is small, the small-diameter measurement Measurement of more effective sound paths cannot be achieved on streaming devices

Method used

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  • Multi-sound-path ultrasonic flow measuring pipe section body
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment one, with reference to the attached Figure 5 , 12 sound channels, 12 ultrasonic sensors.

[0039] A pipe segment body for multi-sound path ultrasonic flow measurement, comprising a pipe segment body 1, a sensor mounting seat 3, an ultrasonic sensor 2, and a sensor mounting hole 4; the sensor mounting seat has an integrated structure. Multiple sensor mounting seats on the same radial circumference are integrated, the sensor mounting hole of the overall structure is set in the sensor mounting seat, and the ultrasonic sensor is set in the sensor mounting hole; the ultrasonic sensor is divided into upstream and downstream according to the arrangement position on the pipe body. side ultrasonic sensors and downstream side ultrasonic sensors, one upstream side ultrasonic sensor matched with multiple downstream side ultrasonic sensors within its beam width, one downstream side ultrasonic sensor matched with multiple upstream side ultrasonic sensors within its beam w...

Embodiment 2

[0040] Embodiment two, referring to the attached Figure 6 , Figure 7 , Figure 8 . 12 sound channels, 12 ultrasonic sensors.

[0041] A pipe segment body for multi-acoustic ultrasonic flow measurement, comprising a pipe segment body 1, a sensor mounting seat 3 and a sensor mounting hole 4; the sensor mounting seat is separate from the pipe segment body. All the sensor mounts are separate units and welded together with the pipe body, the sensor mounting holes are set in the sensor mounts, and the ultrasonic sensors are set in the sensor holes; the ultrasonic sensors are divided into upstream ultrasonic sensors according to their arrangement on the pipe body and downstream side ultrasonic sensors, one upstream side ultrasonic sensor is matched with multiple downstream side ultrasonic sensors within its beam width range, one downstream side ultrasonic sensor is matched with multiple upstream side ultrasonic sensors within its beam width range, 6 upstream side The ultrasonic...

Embodiment 3

[0042] Embodiment three, with reference to the attached Figure 9 . 12 sound channels, 12 ultrasonic sensors.

[0043] A multi-channel ultrasonic flow measurement pipe section body, including a pipe section body 1, a sensor mounting seat 3 and a sensor mounting hole 4; the structure is the same as that of the first or second embodiment.

[0044] The number of ultrasonic sensors on the upstream side is equal to the number of ultrasonic sensors on the downstream side. The 6 upstream ultrasonic sensors are arranged on the same section of the pipe body, and the 6 downstream ultrasonic sensors are arranged on the same section of the pipe body; The six ultrasonic sensors are simplified to one point, and the six upstream ultrasonic sensors are sequentially connected along the circumference of the pipe segment with straight lines to form a regular hexagon A; the six downstream ultrasonic sensors are also connected sequentially along the circumference of the pipe segment to form a reg...

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Abstract

The invention relates to a multi-sound-path ultrasonic flow measurement pipe section body and belongs to the technical field of ultrasonic flow measurement. According to the technical scheme, sensor mounting bases are arranged on a pipe section body, sensor mounting holes are formed in the sensor mounting bases, ultrasonic sensors are arranged in the sensor mounting holes, a plurality of upstreamside ultrasonic sensors and a plurality of downstream side ultrasonic sensors are matched with each other, ultrasonic waves are transmitted and received to form a plurality of ultrasonic measurement sound paths, a signal of each ultrasonic measurement sound path is processed, finally, a flow value in a pipe section body is obtained, and the number of the formed ultrasonic measurement sound paths is larger than or equal to the sum of the number of the ultrasonic sensors on the pipe section body. According to the invention, the number of the ultrasonic sensors is greatly reduced, and the improvement of the measurement precision is facilitated.

Description

technical field [0001] The invention relates to a multi-sound path ultrasonic flow measurement pipe section, which includes an ultrasonic flowmeter (including liquid and gas flowmeters), an ultrasonic water meter, an ultrasonic heat meter, etc., and belongs to the technical field of ultrasonic flow measurement. Background technique [0002] At present, ultrasonic flow measurement equipment mainly includes ultrasonic water meters, ultrasonic heat meters and ultrasonic flow meters (including liquid and gas flow meters). Flow is measured. In order to adapt to the complex flow conditions on site and to pursue high-precision measurement requirements, the only way in the prior art is to increase the number of sound paths and change the measuring instrument from single sound path measurement to multi-sound path measurement. Since the ratio between the number of sound paths and the number of ultrasonic sensors is 1:2, the more sound paths there are, the more ultrasonic sensors are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/66G01F15/00G01K17/00
CPCG01F1/662G01F15/00G01K17/00
Inventor 张继川张力新朱向娜李德海冯宪奎张勇严学智杜长征
Owner HUIZHONG INSTR
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