CN108871477A - Ultrasonic open channel flowmeter - Google Patents

Ultrasonic open channel flowmeter Download PDF

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Publication number
CN108871477A
CN108871477A CN201810568444.3A CN201810568444A CN108871477A CN 108871477 A CN108871477 A CN 108871477A CN 201810568444 A CN201810568444 A CN 201810568444A CN 108871477 A CN108871477 A CN 108871477A
Authority
CN
China
Prior art keywords
inner cavity
energy converter
transducer mount
open channel
ultrasonic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810568444.3A
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Chinese (zh)
Inventor
邓少超
徐志良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Hua Shui Instrument System Co Ltd
Beijing Hua Shui Instrument System Co Ltd
Original Assignee
Hebei Hua Shui Instrument System Co Ltd
Beijing Hua Shui Instrument System Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Hua Shui Instrument System Co Ltd, Beijing Hua Shui Instrument System Co Ltd filed Critical Hebei Hua Shui Instrument System Co Ltd
Priority to CN201810568444.3A priority Critical patent/CN108871477A/en
Publication of CN108871477A publication Critical patent/CN108871477A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662Constructional details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/002Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow wherein the flow is in an open channel

Abstract

The present invention relates to a kind of ultrasonic open channel flowmeters, more particularly to a kind of transducer mount.The transducer mount is for positioning and fixing of energy converter, it is characterized in that, there is inner cavity on transducer mount, inner cavity is strip, front and back communicating structure, and there are two the holes for being used to install energy converter above on inner cavity, there is a slanted angle between the inner plane and datum plane of inner cavity, the cross sectional shape of inner cavity can be slot semi-enclosed, closed or open, that the one or both sides of transducer mount can be penetrated through with strip, front and back.The transducer mount of the ultrasonic open channel flowmeter, it can be convenient using aluminum profile processing and fabricating, inner cavity, inner cavity inner plane and the datum plane of energy converter pass through extrusion forming of mold, using the good feature of the consistency of aluminium profile product size, solve the problems, such as that angle location difficulty, the at high cost and production efficiency of processing and manufacturing are low when the installation of ultrasonic open channel flowmeter energy converter.

Description

Ultrasonic open channel flowmeter
Technical field
The present invention relates to a kind of ultrasonic open channel flowmeters, more particularly to a kind of transducer mount.
Background technique
Energy converter is the core component of ultrasonic flowmeter, and the basic condition that ultrasonic flowmeter works normally is transmitting terminal It is mutually aligned with receiving end energy converter, on same straight line.The key of energy converter installation positioning is transmitting terminal energy converter and connects Receiving end energy converter is consistent relative to the angle of reference for installation.Such as in a kind of design of ultrasonic open channel flowmeter, if Angle between the sonic transmissions direction of meter and reference for installation is 45 °, and actually sends the angle of energy converter and reference for installation It is 43 °, the angle for receiving energy converter and reference for installation is 47 °, just has 4 ° of difference between two energy converters, this difference meeting Cause that the ultrasonic signal received dies down or the shape of wave changes, so that ultrasonic open channel flowmeter can not normal work Make, such case becomes more complicated and be difficult to handle with the increase of number of channels.For similarly designing, if two are changed The practical setting angle relative to reference for installation of energy device is all 48 °, although the actual angle between each energy converter and reference for installation Error is all bigger, but sends energy converter and receive energy converter point-blank, the signal transmission between two energy converters be not by It influences, is not in the case where shape of signal weaker or wave changes, ultrasonic open channel flowmeter is can normal work Make, by sound path Parameters variation caused by actual installation angular error, it is easy to be corrected by the real method for failing to be sold at auction fixed.It is not difficult Find out, the consistency for sending and receiving energy converter setting angle is more important than the installation error of single transducer.Ultrasonic wave open channel Flowmeter is much greater relative to the ultrasonic flowmeter size on general pipeline, for example family is mostly with ultrasonic water meter 15mm or 20mm diameter, factory, hotel, hospital ultrasonic flowmeter be mostly 50mm ~ 150mm diameter, and ultrasonic wave The side length of open-channel meter is mostly 400mm ~ 1200mm.The logarithm of ultrasonic open channel flowmeter energy converter also than civilian or Industrial ultrasonic flowmeter it is more, civilian ultrasonic flowmeter is usually monophonic, only 1 pair of energy converter, industrial one As be 2 pairs of energy converters, and ultrasonic open channel flowmeter is typically all 2 pairs or more, the energy converter logarithm of some open-channel meters 8 pairs can be reached.The sound path of ultrasonic open channel flowmeter is long, and signal decaying is big, and energy converter logarithm is more, to energy converter installation alignment It is required that high.
One Publication No. CN107356296A of China, publication date are the invention of 2017.11.17, are described a super The possibility implementation of sound wave open-channel meter proposes the energy converter fixed frame and a rod-shaped pattern of a box-like pattern Transducer mount, but description is not made to its specific structure and alignment implementation method.
One Publication No. CN206321282U of China, publication date are that the invention of 2017.07.11 describes a kind of eight sound Road ultrasonic flowmeter proposes the strip energy converter mounting base that a cross section is square, but not specific to its inside Structure makes description.
One Publication No. CN205537821U of China, publication date are that the invention of 2016.08.31 describes a transducing Device supporting structure, the hole of only one installation energy converter of the structure, is not used to the multipair energy converter of ultrasonic open channel flowmeter Occasion.
Recognize in actual use there are two types of the supporting structures of ultrasonic open channel flowmeter energy converter:The first is metal tube Shape structure;Second is long plate shape structure.The first structure needs in the rear end of energy converter to process sleeve, energy converter from gold The one end for belonging to pipe is inserted in, and is screwed after rotary alignment;Second first transducer package into the outer of prefabricated certain angle In shell, which is formed using injection molding, is then fixed again with the plastic shell and long plate shape transducer mount.The first knot The angle that structure sends and receives end energy converter is only aligned by hand, and alignment precision is very low;Second of structure is by encapsulation precision and outside Shell influence of crust deformation is very big, and complex process, is unfavorable for being mass produced.
Summary of the invention
The present invention relates to a kind of ultrasonic open channel flowmeters to be able to solve ultrasound more particularly to a kind of transducer mount Wave open-channel meter sends and receives energy converter relative to datum plane setting angle consistency problem, and technical solution is as follows:
In a first aspect, having one on ultrasonic open channel flowmeter transducer mount for installing the inner cavity of energy converter, inner cavity is strip Shape, front and back communicating structure, there are two the hole for being used to install energy converter above, the inner planes and transducer mount of inner cavity on inner cavity There is a slanted angle between datum plane.Energy converter front end is that generally projection shape, when installation can be very easily by transducings The shoulder of device boss is bonded with the inner plane of transducer mount inner cavity, the datum plane and ultrasonic open channel flow rate of transducer mount The reference for installation alignment for counting frame, can be realized angle positioning.Energy converter cavity shape is designed as strip, front and back perforation knot Structure is the process characteristic in order to adapt to aluminum or aluminum alloy extrusion forming, disposably the installation chamber of multiple energy converters is extruded into Type.Inner cavity, inner cavity inner plane and the datum plane of transducer mount are the disposable extrusion forming of aluminum profile, send and receive end Transducer mount, need to only use same mold, the aluminium profile of same batch production, datum plane and inner cavity inner plane Angle be just consistent, can very easily pass through the reference for installation pair on datum plane and ultrasonic open channel flowmeter frame Together.The machined surface and manufacturing procedure of transducer mount, and nothing can be substantially reduced using aluminum or aluminum alloy extrusion forming process It further to energy converter need to be encapsulated.This scheme can significantly improve alignment precision, reduce production cost and improve production Efficiency.
Further, based in a first aspect, ultrasonic open channel flowmeter transducer mount one or both sides can have slot, Slot is to have communicating structure before and after strip.What the slot of communicating structure can be convenient before and after the strip is squeezed by aluminum or aluminum alloy Molded technique and inner cavity, inner cavity inner plane and the disposable extrusion forming of datum plane.The transducer mount side or two The slot of side can be used for connecting with the frame of ultrasonic open channel flowmeter, it may be convenient to it is fixed with aluminum profile corner fittings, according to The feature good by aluminum profile corner fittings verticality, to be further ensured that the alignment for sending energy converter and receiving energy converter, while can be with It significantly reduces production cost and improves production efficiency.
Further, based in a first aspect, the cross sectional shape of ultrasonic open channel flowmeter transducer mount inner cavity can be Semiclosed, closing is open.Using semiclosed or closed energy converter inner-cavity structure, it may be convenient to use screw from transducing Device rear end is fixed, using open energy converter inner-cavity structure, it may be convenient to be fixed using tabletting mode from energy converter rear end.Nothing By which kind of inner cavity form used, aluminum or aluminum alloy extrusion process can be used, by mold disposably by energy converter branch Inner cavity, inner cavity inner plane and the datum plane extrusion molding of frame, so that angle consistency problem when energy converter installation is solved, and Production cost can be greatly lowered, improve production efficiency.
Detailed description of the invention
Fig. 1 is transducer mount outline drawing.
Fig. 2 is that transducer mount inner cavity is semiclosed form sectional view.
Fig. 3 is that transducer mount inner cavity is closing form sectional view.
Fig. 4 is that transducer mount inner cavity is opening mode sectional view.
Fig. 5 is that energy converter is screwed schematic diagram on transducer mount.
Fig. 6 is that energy converter fixes schematic diagram with tabletting on transducer mount.
Fig. 7 is scheme of installation of the transducer mount on ultrasonic open channel flowmeter frame.
Fig. 8 is mounted on ultrasonic open channel flowmeter for transducer mount and is directed at schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that the embodiment described is a part of the embodiments of the present invention, rather than whole embodiments.Based on the present invention In embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work Example, all should belong to the scope of protection of the invention.
The present invention relates to a kind of ultrasonic open channel flowmeters, more particularly to a kind of transducer mount, strip as shown in Figure 1 The slot 2 of the inner cavity 1 of communicating structure before and after shape, strip front and back communicating structure can be very easily squeezed by aluminum or aluminum alloy Type technique one-pass molding, the hole 3 on transducer mount can have multiple peaces for the multipair energy converter of ultrasonic open channel flowmeter Dress.
The inner cavity 1 that transducer mount accommodates energy converter can be semi-closed structure shown in Fig. 2, can also have shown in Fig. 3 Enclosed construction, can also be open architecture shown in Fig. 4.Fig. 2, the inner cavity 1 in 3,4, slot 2, inner cavity inner plane 4, benchmark are flat Angle α between face 5 and inner cavity inner plane 4 and datum plane 5 can by aluminum or aluminum alloy extrusion forming process once at Type.
Energy converter 6 can by the way of such as Fig. 5 fixing from below with screw 7, can also be used by the way of such as Fig. 6 Tabletting 8 is fixed from below.
Transducer mount can pass through slot 2 and ultrasonic open channel flowmeter frame with right-angle connector 9 by the way of such as Fig. 7 Frame connection, the datum plane 5 of transducer mount are aligned with ultrasonic open channel flowmeter frame of reference face 10.Fig. 8 is that ultrasonic wave is bright It is mounted with that the schematic diagram of two pairs of transducers bracket, two pairs of transducers bracket realize right two-by-two on the basis of frame on canal flowmeter Together, being mutually aligned and then realizing 8 betweens of energy converters 6.

Claims (3)

1. a kind of ultrasonic open channel flowmeter, including transducer mount, which is characterized in that have inner cavity, inner cavity on transducer mount For communicating structure before and after strip, on inner cavity there are two or more hole, the inner plane and transducer mount datum plane of inner cavity Between have a slanted angle.
2. ultrasonic open channel flowmeter according to claim 1, it is further characterized in that, the one or both sides of transducer mount There is slot, slot is to have strip, front and back communicating structure.
3. ultrasonic open channel flowmeter according to claim 1, it is further characterized in that, the section shape of transducer mount inner cavity Shape can be semi-enclosed, closed or open.
CN201810568444.3A 2018-06-05 2018-06-05 Ultrasonic open channel flowmeter Pending CN108871477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810568444.3A CN108871477A (en) 2018-06-05 2018-06-05 Ultrasonic open channel flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810568444.3A CN108871477A (en) 2018-06-05 2018-06-05 Ultrasonic open channel flowmeter

Publications (1)

Publication Number Publication Date
CN108871477A true CN108871477A (en) 2018-11-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810568444.3A Pending CN108871477A (en) 2018-06-05 2018-06-05 Ultrasonic open channel flowmeter

Country Status (1)

Country Link
CN (1) CN108871477A (en)

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2243648Y (en) * 1995-10-26 1996-12-25 北京市城市河湖管理处 Mounting regulator for supersonic transducer on open channels
US5952583A (en) * 1998-06-10 1999-09-14 Chang Min Tech Co., Ltd. Method of measuring a river horizontal average flow velocity
CN1911538A (en) * 2006-08-18 2007-02-14 天津科技大学 Ultrasonic cleaning device
KR100919767B1 (en) * 2008-11-03 2009-10-07 주식회사 수인테크 Method for installation of multi beam flow meter and apparatus
EP2141463A1 (en) * 2008-07-02 2010-01-06 Kamstrup A/S Ultrasound flow meter with transducer cartridge mounting surface and sealing means
US20120148345A1 (en) * 2009-02-05 2012-06-14 David John Aughton Undershot Sluice Gate
CN102575950A (en) * 2009-08-18 2012-07-11 鲁比康研究有限公司 Flow meter assembly, gate assemblies and methods of flow measurement
CN102829831A (en) * 2012-08-27 2012-12-19 曲宝源 Base table of low-pressure-drop upright post type ultrasonic flow meter with spherical expansion cavities
CN203587151U (en) * 2013-11-05 2014-05-07 成都海兰天澄科技有限公司 Ultrasonic open-channel meter
US20140196547A1 (en) * 2013-01-14 2014-07-17 Cameron International Corporation Deployable Ultrasonic Flow Meter That is Inserted Through a Gate Valve Slot, Method and Apparatus
CN105221146A (en) * 2015-11-05 2016-01-06 中国石油天然气集团公司 A kind of orthogonal dipole transducer different depth mounting structure
US20160237759A1 (en) * 2013-09-27 2016-08-18 Cold Bore Technology Inc. Methods and apparatus for operatively mounting actuators to pipe
CN106595784A (en) * 2016-12-26 2017-04-26 徐州工程学院 Simple metering device for foundation pit displacement
CN206161074U (en) * 2016-11-07 2017-05-10 深圳市清华环科检测技术有限公司 Press from both sides dress ultrasonic flowmeter
US20170160240A1 (en) * 2014-02-04 2017-06-08 Kai Fan Ultrasonic flow meter clamp
CN206683697U (en) * 2017-05-11 2017-11-28 中国农业科学院农业资源与农业区划研究所 A kind of irrigation canals and ditches Flow Measuring System
CN207263236U (en) * 2017-07-20 2018-04-20 江苏鑫华禹测控技术有限公司 A kind of ultrasonic open channel flowmeter
CN207335796U (en) * 2017-11-02 2018-05-08 唐山海森电子股份有限公司 Double metering open-channel meters
CN108106682A (en) * 2018-01-16 2018-06-01 中苏科技股份有限公司 Multichannel ultrasonic open-channel meter
CN208238864U (en) * 2018-06-05 2018-12-14 北京华水仪表系统有限公司 Ultrasonic open channel flowmeter

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2243648Y (en) * 1995-10-26 1996-12-25 北京市城市河湖管理处 Mounting regulator for supersonic transducer on open channels
US5952583A (en) * 1998-06-10 1999-09-14 Chang Min Tech Co., Ltd. Method of measuring a river horizontal average flow velocity
CN1911538A (en) * 2006-08-18 2007-02-14 天津科技大学 Ultrasonic cleaning device
EP2141463A1 (en) * 2008-07-02 2010-01-06 Kamstrup A/S Ultrasound flow meter with transducer cartridge mounting surface and sealing means
KR100919767B1 (en) * 2008-11-03 2009-10-07 주식회사 수인테크 Method for installation of multi beam flow meter and apparatus
US20120148345A1 (en) * 2009-02-05 2012-06-14 David John Aughton Undershot Sluice Gate
CN102575950A (en) * 2009-08-18 2012-07-11 鲁比康研究有限公司 Flow meter assembly, gate assemblies and methods of flow measurement
CN102829831A (en) * 2012-08-27 2012-12-19 曲宝源 Base table of low-pressure-drop upright post type ultrasonic flow meter with spherical expansion cavities
US20140196547A1 (en) * 2013-01-14 2014-07-17 Cameron International Corporation Deployable Ultrasonic Flow Meter That is Inserted Through a Gate Valve Slot, Method and Apparatus
US20160237759A1 (en) * 2013-09-27 2016-08-18 Cold Bore Technology Inc. Methods and apparatus for operatively mounting actuators to pipe
CN203587151U (en) * 2013-11-05 2014-05-07 成都海兰天澄科技有限公司 Ultrasonic open-channel meter
US20170160240A1 (en) * 2014-02-04 2017-06-08 Kai Fan Ultrasonic flow meter clamp
CN105221146A (en) * 2015-11-05 2016-01-06 中国石油天然气集团公司 A kind of orthogonal dipole transducer different depth mounting structure
CN206161074U (en) * 2016-11-07 2017-05-10 深圳市清华环科检测技术有限公司 Press from both sides dress ultrasonic flowmeter
CN106595784A (en) * 2016-12-26 2017-04-26 徐州工程学院 Simple metering device for foundation pit displacement
CN206683697U (en) * 2017-05-11 2017-11-28 中国农业科学院农业资源与农业区划研究所 A kind of irrigation canals and ditches Flow Measuring System
CN207263236U (en) * 2017-07-20 2018-04-20 江苏鑫华禹测控技术有限公司 A kind of ultrasonic open channel flowmeter
CN207335796U (en) * 2017-11-02 2018-05-08 唐山海森电子股份有限公司 Double metering open-channel meters
CN108106682A (en) * 2018-01-16 2018-06-01 中苏科技股份有限公司 Multichannel ultrasonic open-channel meter
CN208238864U (en) * 2018-06-05 2018-12-14 北京华水仪表系统有限公司 Ultrasonic open channel flowmeter

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