CN207019729U - Combined axial correlation type ultrasonic transducer for gas flow measurement - Google Patents
Combined axial correlation type ultrasonic transducer for gas flow measurement Download PDFInfo
- Publication number
- CN207019729U CN207019729U CN201720947772.5U CN201720947772U CN207019729U CN 207019729 U CN207019729 U CN 207019729U CN 201720947772 U CN201720947772 U CN 201720947772U CN 207019729 U CN207019729 U CN 207019729U
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- housing
- groove
- installation portion
- rib
- gas flow
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a kind of combined axial correlation type ultrasonic transducer for gas flow measurement.It is combined by components A and part B, components A includes housing and the transducer kernel being assemblied in housing, housing is tubular construction, at least two are interval with the lateral wall of housing along its longitudinal rib, on the front inner wall of housing 38 groove for passing through housing forward end face A, groove A component parts A inside and the gas channel of ft connection are provided with along its circumference；Part B includes the installation portion of tubular, is co-axially located at the anterior connecting portion of installation portion, the multiple airflow fences being axially arranged between the outer surface of installation portion and the madial wall of connecting portion, the longitudinal groove B that can be engaged with the rib on the housing of components A is provided with the madial wall of installation portion, the sealing structure being used for measuring segment seal is carried on the lateral wall of the connecting portion；The components A is assemblied in the installation portion of the part B and positioned by the rib and the groove B cooperation.
Description
Technical field
It the utility model is related to a kind of ultrasonic transducer, more particularly to a kind of combination profile shaft for gas flow measurement
To correlation type ultrasonic transducer, belong to ultrasonic sensor technical field.
Background technology
Primary Component in ultrasonic gas flow measurement device is gas medium ultrasonic transducer.In the prior art
Axial its transducer housing of correlation type ultrasonic transducer include be used for assemble transducer kernel housing and for measurement
The coupling part of pipeline section connection, the two parts are integral type structure, and it is big that the ultrasonic transducer of this kind of structure has difficulty of processing
And the defects of assembling, maintenance difficult.
The content of the invention
For drawbacks described above present in prior art, the utility model provide it is a kind of it is simple in construction, difficulty of processing is low,
The combined axial correlation type ultrasonic transducer for gas flow measurement be easy to assemble and repaired.
The utility model is achieved by the following technical solution：A kind of combined axial direction for gas flow measurement
Correlation type ultrasonic transducer, it is characterized in that：It is combined by components A and part B, and the components A includes housing and transducing
Device kernel, the housing are tubular construction, and the rear end of the housing carries boss, be interval with the lateral wall of the housing to
Few two are provided with 3-8 along its circumference along its longitudinal rib, on the front inner wall of the housing and pass through the recessed of housing forward end face
Groove A, the transducer kernel are assemblied in the housing, and the air-flow inside the groove A component parts A with ft connection leads to
Road；The part B includes the installation portion of tubular, is co-axially located at the anterior cylinder that can be connected with measurement pipeline section of the installation portion
Multiple water conservancy diversion between the madial wall of the connecting portion of shape, the outer surface for being axially arranged on the installation portion and the connecting portion
Grid, the both ends of the airflow fence are fixedly connected with the outer surface of the installation portion and the madial wall of the connecting portion respectively, described
Airflow fence and the installation portion, the connecting portion madial wall between form multiple flow-guiding channels, the madial wall of the installation portion
On be provided with the longitudinal groove B that can be engaged with the rib on the housing of the components A, the front end of the installation portion is provided with fixing card
Buckle structure, the sealing structure being used for measuring segment seal is carried on the lateral wall of the connecting portion；The components A is assemblied in institute
State in the installation portion of part B and positioned by the rib and the groove B cooperation, and fixed by the fixed card buckle structure.
In the utility model, components A is combined with part B assembling and forms axial correlation type ultrasonic transducer, when
It loads gas and is situated between after measurement pipeline, and the connecting portion of part B is connected with measurement pipeline and it can be positioned and make itself and measurement
Sealed between pipeline, ensure that the axis of upstream transducer and downstream transducer is aligned and prevents flow leakage, had steady well
It is qualitative.On the one hand the airflow fence being arranged in part B is used to support installation portion and connecting portion, on the other hand it can will measure pipeline
Interior air-flow carries out water conservancy diversion, can effectively reduce air-flow inhomogeneities caused by transducer body in measurement pipeline, makes its measurement essence
Degree is improved.The groove A set in the utility model, gas channel is provided between outside components A and inside, can be balanced
Components A inner and outer air pressure, it is balanced each member compression in components A, to obtain high-performance and long-life.Transducer kernel is existing
There is technology, it is used for acoustic energy transmission and signal transmission.
Further, for ease of the assembling and positioning between components A and the installation portion of part B, the lateral wall of the housing
With tapered, and the external diameter of the front end of the housing is less than the external diameter of its rear end, the outer surface of the rib on the hull outside wall
With the lateral wall identical taper with housing；The madial wall of the installation portion is with identical with the lateral wall of the housing
Taper, the groove bottom of the groove B is with the outer surface identical taper with the rib.
Further, it is provided with metallic channel for ease of cabling, the end of one of airflow fence.Wire can be in metallic channel
Pass through.
Groove A in the utility model can be multiple, it is preferred that the groove A is 3.
Further, to have good positioning and sealing when ensureing that ultrasonic transducer is connected with measurement pipeline, ensure
The axis of upstream transducer and downstream transducer is aligned, and the sealing structure being arranged on the lateral wall of connecting portion is at least one
Concave convex groove structure, the concave convex groove structure is interior to be provided with O-ring seals.
Further, the rib is 3.
The beneficial effects of the utility model are：The utility model is simple in construction, and using combining structure, difficulty of processing is low, easily
In production, it is easy to assemble and repairs, production efficiency can be greatly improved.The special structure such as it is engaged by housing A and housing B to set
Count and by setting sealing ring, be effectively improved the functional reliability and service life of gas flow surveying instrument.
Brief description of the drawings
Fig. 1 is schematic front view of the present utility model；
Fig. 2 is the A-A schematic cross-sectional views in Fig. 1；
Fig. 3 is Fig. 1 left view schematic diagram；
The right side that Fig. 4 is Fig. 1 regards schematic diagram；
Fig. 5 is dimensional structure diagram of the present utility model；
Fig. 6 is the front view of the components A in the utility model；
Fig. 7 is Fig. 6 B-B sectional views；
Fig. 8 is Fig. 6 top view；
Fig. 9 is Fig. 6 upward view；
Figure 10 is the front view of the part B in the utility model；
Figure 11 is the C-C sectional views in Figure 10；
Figure 12 is Figure 10 left view；
Figure 13 is Figure 10 right view；
Figure 14 is the dimensional structure diagram of part B；
In figure, 1, housing, 2, groove A, 3, rib, 4, boss, 5, seal washer, 6, fixing hole, 7, acoustic impedance matching layer, 8,
Piezoelectric patches, 9, back lining materials, 10, PCB adapter board, 11, fixed structure glue, 12, signal excitation with receiving feeder line, 13, feeder line turns
Wiring, 14, installation portion, 15, connecting portion, 16, fixed card buckle structure, 17, airflow fence, 18, O-ring seals, 19, metallic channel, 20,
Groove B, 21, threading hole.
Embodiment
The utility model is further described below by non-limiting embodiment and with reference to accompanying drawing：
As shown in drawings, a kind of combined axial correlation type ultrasonic transducer for gas flow measurement, it is by portion
Part A and part B combine.The components A includes housing 1 and transducer kernel, and the housing 1 is tubular construction, the shell
The rear end of body 1 carries boss 4, and the bottom of boss 4 is provided with seal washer 5.At least two are interval with the lateral wall of the housing 1
Bar is along its longitudinal rib 3, and in the present embodiment, the rib 3 is 3 be evenly arranged.Along it on the front inner wall of the housing 1
Circumference is provided with 3-8 groove A2, and the opening of the groove A2 passes through the front end face of housing 1, the quantity preferably 3 of the groove A2
It is individual.The transducer kernel is assemblied in the housing 1, and transducer kernel is prior art, is mainly included：Acoustic impedance matching layer
7th, piezoelectric patches 8, back lining materials 9, feeder line patchcord 13, PCB adapter board 10, signal excitation are with receiving feeder line 12, fixed structure glue
11 are formed, and acoustic impedance matching layer 7 is fixed on the front end of the body, piezoelectric patches 8, back lining materials 9, PCB adapter board by binding agent
10 are sequentially arranged in the housing and by the sealing of fixed structure glue 11, acoustic impedance matching layer 7 by the rear side of acoustic impedance matching layer 7
It is bonded together between piezoelectric patches 8 by binding agent, feeder line patchcord 13 is two, two one end of feeder line patchcord 13 and pressure
The respective side silver electrode welding of electric piece 8, its other end are welded in the respective pad of PCB adapter board 10 and gone out to the shell
Outside body, two feeder line patchcord feed signals between piezoelectric patches and PCB adapter board, signal excitation is with receiving the one of feeder line 12
End is welded on the relevant position of PCB adapter board 10, and its other end leads to the hull outside.Piezoelectric patches 8 turns for piezoelectricity
Change and changed with inverse piezoelectricity, the impedance matching that acoustic impedance matching layer 7 is used between gas medium is transmitted with acoustic energy, and two feeder lines turn
The feed signal between piezoelectric patches and PCB adapter board of wiring 13, signal excitation are used for transducer and external electrical with receiving feeder line 12
The signal excitation on road receives.It is inside the groove A2 component parts A and outside after transducer kernel is assemblied in the housing 1
The gas channel of connection, can balanced inner and outer air pressure, be balanced each member compression of its gas Jie's ultrasonic transducer, to obtain it
High-performance and long-life.The installation portion 14 of the part B including tubular, be co-axially located at the installation portion 14 it is anterior can be with survey
The cylindric connecting portion 15 of buret section connection, outer surface and the connecting portion 15 for being axially arranged on the installation portion 14
Multiple airflow fences 17 between madial wall, the airflow fence 17 are platy structure, the both ends of the airflow fence 17 respectively with it is described
The outer surface of installation portion 14 is fixedly connected with the madial wall of the connecting portion 15, the airflow fence 17 and installation portion 14, connecting portion
Multiple flow-guiding channels are formed between 15 madial wall.Airflow fence 17 in the present embodiment is preferably arranged to 3.The installation portion 14
Madial wall on be provided with the longitudinal groove B20 that can be engaged with the rib 3 on the housing 1 of the components A, groove B20 quantity
It is identical with the quantity of the rib 3 on housing 1.The front end of the installation portion 14 is provided with fixed card buckle structure 16.The connecting portion 15
The sealing structure being used for measuring segment seal is carried on lateral wall, the sealing structure in the present embodiment is at least one recessed
Tongue structure, the concave convex groove structure is interior to be provided with O-ring seals 18.The components A is assemblied in the installation portion 14 of the part B
It is interior, and coordinated by the rib 3 and the groove B20 and positioned, components A is provided with fixing hole 6, and fixed card buckle structure 16 passes through solid
Determine hole 6 to fix components A.For ease of cabling, the utility model is provided with threading hole 21 also in part B, close to threading hole 21
The end of an airflow fence 17 be provided with metallic channel 19.
For ease of the assembling between components A and the installation portion 14 of part B, it is preferred that the lateral wall of the housing 1 carries
Taper, and the external diameter of the front end of the housing 1 is less than the external diameter of its rear end, the outer surface of the rib 3 on the lateral wall of housing 1
With the lateral wall identical taper with housing.The madial wall of the installation portion 14 is with identical with the lateral wall of the housing
Taper, the groove bottom of the groove B20 is with the outer surface identical taper with the rib 3.By by the appearance of housing 1
The inner surface of face and installation portion 14 is both designed as carrying certain taper, and both can easily be assembled, and it is difficult can to reduce assembling
Degree.
Other parts in the present embodiment are prior art, be will not be repeated here.
Claims (6)
1. a kind of combined axial correlation type ultrasonic transducer for gas flow measurement, it is characterized in that：Its by components A and
Part B combines, and the components A includes housing (1) and transducer kernel, and the housing (1) is tubular construction, the housing
(1) rear end carries boss (4), and at least two are interval with the lateral wall of the housing (1) along its longitudinal rib (3), institute
State and be provided with the 3-8 groove A (2) for passing through housing (1) front end face, the transducing along its circumference on the front inner wall of housing (1)
Device kernel is assemblied in the housing (1), groove A (2) the component parts A inside and the gas channel of ft connection；It is described
Part B includes the installation portion (14) of tubular, is co-axially located at the anterior circle that can be connected with measurement pipeline section of the installation portion (14)
The connecting portion (15) of tubular, the outer surface for being axially arranged on the installation portion (14) and the connecting portion (15) madial wall it
Between multiple airflow fences (17), the both ends outer surface with the installation portion (14) and the connection respectively of the airflow fence (17)
The madial wall in portion (15) is fixedly connected, the airflow fence (17) and the installation portion (14), the madial wall of the connecting portion (15)
Between form multiple flow-guiding channels, being provided with the madial wall of the installation portion (14) can be with the rib on the housing (1) of the components A
(3) the longitudinal groove B (20) being engaged, the front end of the installation portion (14) are provided with fixed card buckle structure (16), the connection
The sealing structure being used for measuring segment seal is carried on the lateral wall in portion (15)；The components A is assemblied in the peace of the part B
Positioned in dress portion (14) and by the cooperation of the rib (3) and the groove B (20), and it is solid by the fixed card buckle structure (16)
It is fixed.
2. the combined axial correlation type ultrasonic transducer according to claim 1 for gas flow measurement, it is special
Sign is：The lateral wall band of the housing (1) is tapered, and the external diameter of the front end of the housing (1) is less than the external diameter of its rear end, institute
The outer surface of the rib (3) on housing (1) lateral wall is stated with the lateral wall identical taper with housing；The installation portion (14)
Madial wall with the lateral wall identical taper with the housing, the groove bottom of the groove B (20) with it is described
The outer surface identical taper of rib (3).
3. the combined axial correlation type ultrasonic transducer according to claim 1 for gas flow measurement, it is special
Sign is：The end of one of airflow fence (17) is provided with metallic channel (19).
4. the combined axial correlation type ultrasonic transducer according to claim 1 for gas flow measurement, it is special
Sign is：The groove A (2) is 3.
5. the combined axial correlation type ultrasonic transducer according to claim 1 for gas flow measurement, it is special
Sign is：The sealing structure being arranged on the lateral wall of connecting portion (15) is at least one concave convex groove structure, the tongue and groove knot
O-ring seals are provided with structure.
6. the combined axial correlation type ultrasonic for gas flow measurement according to claim 1 or 2 or 3 or 4 or 5
Transducer, it is characterized in that：The rib (3) is 3.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947772.5U CN207019729U (en) | 2017-08-01 | 2017-08-01 | Combined axial correlation type ultrasonic transducer for gas flow measurement |
| PCT/CN2018/079436 WO2019024512A1 (en) | 2017-08-01 | 2018-03-19 | Combined axial through beam ultrasonic transducer for gas flow measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947772.5U CN207019729U (en) | 2017-08-01 | 2017-08-01 | Combined axial correlation type ultrasonic transducer for gas flow measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207019729U true CN207019729U (en) | 2018-02-16 |
Family
ID=61482635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720947772.5U Active CN207019729U (en) | 2017-08-01 | 2017-08-01 | Combined axial correlation type ultrasonic transducer for gas flow measurement |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207019729U (en) |
| WO (1) | WO2019024512A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019024512A1 (en) * | 2017-08-01 | 2019-02-07 | 青岛积成电子股份有限公司 | Combined axial through beam ultrasonic transducer for gas flow measurement |
| WO2020150947A1 (en) * | 2019-01-21 | 2020-07-30 | 青岛积成电子股份有限公司 | Ultrasonic measurement device for gas flow measurement |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4215598A1 (en) * | 1992-04-14 | 1993-10-21 | Landis & Gyr Betriebs Ag | Transducer for determining the flow rate of a flowing liquid |
| DE102009046146A1 (en) * | 2009-10-29 | 2011-05-12 | Robert Bosch Gmbh | Ultrasonic transducer for use in a fluid medium |
| DE102009046147A1 (en) * | 2009-10-29 | 2011-05-05 | Robert Bosch Gmbh | Ultrasonic transducer for use in a fluid medium |
| CN202083417U (en) * | 2011-05-31 | 2011-12-21 | 际华三五零二职业装有限公司 | Ultrasonic probe for vortex flow meter |
| US9711709B2 (en) * | 2013-08-08 | 2017-07-18 | General Electric Company | Transducer systems |
| CN106525181B (en) * | 2016-12-26 | 2023-04-18 | 上海宾峰仪器科技有限公司 | Double-shell ultrasonic transducer with temperature compensation gas |
| CN207019729U (en) * | 2017-08-01 | 2018-02-16 | 青岛积成电子股份有限公司 | Combined axial correlation type ultrasonic transducer for gas flow measurement |
-
2017
- 2017-08-01 CN CN201720947772.5U patent/CN207019729U/en active Active
-
2018
- 2018-03-19 WO PCT/CN2018/079436 patent/WO2019024512A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019024512A1 (en) * | 2017-08-01 | 2019-02-07 | 青岛积成电子股份有限公司 | Combined axial through beam ultrasonic transducer for gas flow measurement |
| WO2020150947A1 (en) * | 2019-01-21 | 2020-07-30 | 青岛积成电子股份有限公司 | Ultrasonic measurement device for gas flow measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019024512A1 (en) | 2019-02-07 |
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