CN207123309U - A kind of flow passage structure and flow sensor of ultrasonic gas flow sensor - Google Patents
A kind of flow passage structure and flow sensor of ultrasonic gas flow sensor Download PDFInfo
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- CN207123309U CN207123309U CN201721195555.1U CN201721195555U CN207123309U CN 207123309 U CN207123309 U CN 207123309U CN 201721195555 U CN201721195555 U CN 201721195555U CN 207123309 U CN207123309 U CN 207123309U
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- mounting hole
- ultrasonic sensor
- sensor mounting
- reflector
- gas flow
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- 239000012535 impurity Substances 0.000 claims abstract description 17
- 238000002604 ultrasonography Methods 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 9
- 230000002463 transducing effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 18
- 239000003344 environmental pollutant Substances 0.000 abstract description 14
- 231100000719 pollutant Toxicity 0.000 abstract description 14
- 239000000428 dust Substances 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 49
- 238000009434 installation Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Abstract
A kind of flow passage structure of ultrasonic gas flow sensor, flow passage structure include：Runner body, gas flow body interior are provided with the gas flow with air admission hole and venthole；The first ultrasonic sensor mounting hole and second ultrasonic sensor mounting hole vertical with gas flow axial direction are respectively arranged with left and right sides of runner body axial direction, and first ultrasonic sensor mounting hole and the second ultrasonic sensor mounting hole be separately positioned on runner body axial direction front and rear side, the inner chamber of runner body is additionally provided with to be correspondingly arranged with the first ultrasonic sensor mounting hole and the second ultrasonic sensor mounting hole respectively, the first reflector and the second reflector for reflectance ultrasound ripple.The sensor mounting hole for solving the flow passage structure of existing ultrasonic gas flow sensor easily accumulates impurity, dust or pollutant, and mounting hole adheres to substantial amounts of pollutant, can cause the problem of measurement accuracy of ultrasonic sensor is poor and service life is short.
Description
Technical field
It the utility model is related to flow measurement technology field, and in particular to a kind of runner of ultrasonic gas flow sensor
Structure and ultrasonic gas flow sensor.
Background technology
As measurement instrument, being applied in the measurement of gas flow must compare early, 70 years 20th century gas flow sensor
Just there is production for China and start to use on large diameter pipeline, it has the function of automatic cumulative volume number, can be accurate
Measure gas flow.Such as ultrasonic wave gas meter causes those, using the user of natural gas or piped gas, can easily know
Road combustion gas usage amount, to be paid the fees according to the cubic meter number for monthly consuming combustion gas.The service life of flow sensor, measurement are accurate
True property and production and application cost are to evaluate its fine or not important indicator.
Chinese patent literature CN203287063U discloses a kind of installation knot of the ultrasonic sensor of ultrasonic wave gas meter
Structure, including gas flow body 101, gas flow is provided with gas flow body 101, the cross section of gas flow is square
Shape structure；In the both sides of gas flow, the first mounting hole 102 and the second mounting hole 103, ultrasonic sensor point are correspondingly arranged on
Do not set in the first mounting hole 102 and the second mounting hole 103, the first mounting hole 102 is mutually overlapping with the center line of the second mounting hole 103
Close；The mounting hole 103 of first mounting hole 102 and first is all shoulder hole structure, and outside is installation macropore, and inside is that installation is small
Hole, installation macropore overlap with installing the axis of aperture.
The mounting structure of above-mentioned ultrasonic sensor, its first mounting hole and the second mounting hole are relative to gas flow body
Acute angle is mutually, for gases such as combustion gas, substantial amounts of impurity, dust or pollutant can be included, when having impurity, dust or pollution
Thing from mounting hole enter gas flow body when, they, which are very easy to be attached to, tilts as the first mounting hole of acute angle and the second peace
On the inwall for filling hole, when the inwall of the first mounting hole and the second mounting hole is attached with substantial amounts of pollutant, it can have a strong impact on super
The measurement accuracy of sonic sensor and the service life of sensor.
Utility model content
Therefore, the technical problems to be solved in the utility model is the stream for overcoming existing ultrasonic gas flow sensor
The sensor mounting hole of road structure easily accumulates impurity, dust or pollutant, and mounting hole adheres to substantial amounts of pollutant, can cause to surpass
The problem of measurement accuracy difference and short service life of sonic sensor, so as to provide a kind of ultrasonic gas flow sensor
Flow passage structure, the flow passage structure include：
Runner body, the gas flow body interior are provided with the gas flow with air admission hole and venthole；
It is respectively arranged with left and right sides of the runner body axial direction vertical with the gas flow axial direction
First ultrasonic sensor mounting hole and the second ultrasonic sensor mounting hole, and the first ultrasonic sensor mounting hole
The front and rear side of the axial direction of the runner body, the runner are separately positioned on the second ultrasonic sensor mounting hole
The inner chamber of body is additionally provided with installs with the first ultrasonic sensor mounting hole and second ultrasonic sensor respectively
Hole is correspondingly arranged, the first reflector and the second reflector for reflectance ultrasound ripple.
First reflector and second reflector are laminated structure, and first reflector the first surpasses with described
The central axis of sonic sensor mounting hole in angle of 45 degrees, with second ultrasonic sensor install by second reflector
The central axis in hole is in angle of 45 degrees.
The inner chamber of the runner body is provided with installs two of first reflector and second reflector respectively
Mounting groove.
First reflector and second reflector are formed in one in the laminated structure of the runner chamber body.
Use is respectively arranged with the first ultrasonic sensor mounting hole and the second ultrasonic sensor mounting hole
In the screen pack of isolation impurity.
The both ends of the gas flow body are respectively arranged with the connector being connected with the air admission hole and the venthole.
Bending part is provided with the runner body, the bending part is located at first ultrasonic sensor installation
Outside the surveying range that hole and the second ultrasonic sensor mounting hole surround.
The runner body is that cross section is rectangular flat structure body.
A kind of flow sensor, above-mentioned flow passage structure, and it is separately positioned on the first ultrasonic sensor mounting hole
In the second ultrasonic sensor mounting hole, for launching or receiving the transducer of transducing sound wave.
Technical solutions of the utility model, have the following advantages that：
1. the flow passage structure of ultrasonic gas flow sensor provided by the utility model, by runner body axial direction side
To the left and right sides the first ultrasonic sensor mounting hole and the second ultrasonic sensor mounting hole are set, both it and gas
Body runner axial direction is vertically arranged, when having impurity, dust or pollutant to enter mounting hole, because mounting hole is vertically arranged dirt
Dye thing is not easy to be attached to inner wall of the hole installing, so as to improve the measurement accuracy of ultrasonic sensor and service life.
2. the flow passage structure of ultrasonic gas flow sensor provided by the utility model, by by the first reflector and
Two reflectors are disposed as laminated structure, enable ultrasonic wave along straight line from the central axis of mounting hole in angle of 45 degrees
One ultrasonic sensor mounting hole reflexes to the second ultrasonic sensor mounting hole, reaches the purpose of reflection sound wave.
3. the flow passage structure of ultrasonic gas flow sensor provided by the utility model, the first reflector and the second reflection
Body is formed at runner chamber body by integrally formed mode, has Stability Analysis of Structures reliable, improves making for flow sensor
Use the life-span.
4. the flow passage structure of ultrasonic gas flow sensor provided by the utility model, by the first supersonic sensing
Screen pack is provided with device mounting hole and the second ultrasonic sensor mounting hole, isolation impurity can be played, prevent impurity, dust
Or pollutant enters the effect of mounting hole.
5. the flow passage structure of ultrasonic gas flow sensor provided by the utility model, by being transversal by runner body
Face is arranged to rectangular flat structure body, and the first surpassing in the left and right sides of runner body axial direction is split so as to improve
Measurement between sonic sensor mounting hole and the second ultrasonic sensor mounting hole is specific, and the measurement for improving flow sensor is accurate
True property.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the top view of ultrasonic gas flow sensor provided by the utility model；
Fig. 2 is the ultrasonic gas flow sensor A-A sectional views in Fig. 1；
Fig. 3 is the front view of ultrasonic gas flow sensor provided by the utility model；
Fig. 4 is the structural representation of the ultrasonic sensor of ultrasonic wave gas meter of the prior art
Description of reference numerals：
1- runner bodies；2- gas flows；3- the first ultrasonic sensor mounting holes；The ultrasonic sensors of 4- second are installed
Hole；The reflectors of 5- first；The reflectors of 6- second；7- mounting grooves；8- screen packs；9- connectors；10- bending parts；101- gases
Runner body；The mounting holes of 102- first；The mounting holes of 103- second.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Conflict can is not formed to be combined with each other.
Embodiment 1
A kind of ultrasonic gas flow sensor is described, as depicted in figs. 1 and 2, the flow sensor includes：
Flow passage structure includes the runner body 1 that cross section is rectangular flat structure, inside the gas flow body 1
The gas flow 2 with air admission hole and venthole is provided with, the air admission hole and the venthole are separately positioned on gas flow
Connected connector 9 be bonded with its is provided with the both ends of body 1, air admission hole and venthole；
It is respectively arranged with left and right sides of the axial direction of runner body 1 vertical with the axial direction of gas flow 2
The first ultrasonic sensor mounting hole 3 and the second ultrasonic sensor mounting hole 4, and first ultrasonic sensor pacify
Dress hole 3 and the second ultrasonic sensor mounting hole 4 are separately positioned on the front and rear side of the axial direction of the runner body 1,
The inner chamber of the runner body 1 be additionally provided with respectively with the first ultrasonic sensor mounting hole 3 and second ultrasonic wave
Sensor mounting hole 4 is correspondingly arranged, the first reflector 5 and the second reflector 6 for reflectance ultrasound ripple；
Transducer, it is separately positioned on the first ultrasonic sensor mounting hole 3 and second ultrasonic sensor peace
Fill in hole 4, for launching or receiving transducing sound wave.
By setting the first ultrasonic sensor mounting hole in the left and right sides of runner body axial direction and the second surpassing
Sonic sensor mounting hole, it is vertically arranged with gas flow axial direction both it, enters when having impurity, dust or pollutant
During mounting hole, it is not easy to be attached to inner wall of the hole installing because mounting hole is vertically arranged pollutant, so as to improve supersonic sensing
The measurement accuracy and service life of device.And the first ultrasonic sensor mounting hole 3 and the installation of the second ultrasonic sensor
Hole 4 is located at the both sides of gas flow body 1, improves the measurement length of ultrasonic wave, and it is empty to play optimization flow sensor position
Between layout act on.
Certainly, the utility model is not specifically limited to the quantity of ultrasonic sensor mounting hole and position, in other realities
Apply in example, ultrasonic sensor mounting hole has multigroup, and each group of ultrasonic sensor mounting hole is arranged on runner body 1 axially
Front and rear side on direction.
In the present embodiment, in order that straight reflexed to from the first ultrasonic sensor mounting hole of ultrasonic wave the second surpasses
Sonic sensor mounting hole, reduce measurement difficulty, optimization measurement cost, first reflector 5 and second reflector 6 are equal
For laminated structure, the central axis of first reflector 5 and the first ultrasonic sensor mounting hole 3 in angle of 45 degrees,
The central axis of second reflector 6 and the second ultrasonic sensor mounting hole 4 is in angle of 45 degrees.
Certainly, the utility model is not specifically limited to the structure and position of the first reflector 5 and the second reflector 6,
In other embodiments, the first reflector 5 and the second reflector 6 are polygon diamond structure.
In the present embodiment, in order that the attachment structure of reflector and runner body 1 is reliable and stable, flow biography is improved
The service life of sensor, first reflector 5 and second reflector 6 are formed in one in the inner chamber of runner body 1
Laminated structure.
In the present embodiment, in order to isolate impurity, prevent that impurity, dust or pollutant from entering mounting hole, described first
The mistake for isolating impurity is separately provided in ultrasonic sensor mounting hole 3 and the second ultrasonic sensor mounting hole 4
Filter screen 8.
In the present embodiment, as shown in figure 3, being provided with bending part 10, the bending part on the runner body 1
10 surveying ranges surrounded positioned at the first ultrasonic sensor mounting hole 3 and the second ultrasonic sensor mounting hole 4
Outside.
Embodiment 2
A kind of flow passage structure of ultrasonic gas flow sensor is described, as depicted in figs. 1 and 2,
Flow passage structure includes the runner body 1 that cross section is rectangular flat structure, inside the gas flow body 1
The gas flow 2 with air admission hole and venthole is provided with, the air admission hole and the venthole are separately positioned on gas flow
Connected connector 9 be bonded with its is provided with the both ends of body 1, air admission hole and venthole；
It is respectively arranged with left and right sides of the axial direction of runner body 1 vertical with the axial direction of gas flow 2
The first ultrasonic sensor mounting hole 3 and the second ultrasonic sensor mounting hole 4, and first ultrasonic sensor pacify
Dress hole 3 and the second ultrasonic sensor mounting hole 4 are separately positioned on the front and rear side of the axial direction of the runner body 1,
The inner chamber of the runner body 1 be additionally provided with respectively with the first ultrasonic sensor mounting hole 3 and second ultrasonic wave
Sensor mounting hole 4 is correspondingly arranged, the first reflector 5 and the second reflector 6 for reflectance ultrasound ripple.By in runner body
The left and right sides of axial direction sets the first ultrasonic sensor mounting hole and the second ultrasonic sensor mounting hole, both it
It is vertically arranged with gas flow axial direction, when having impurity, dust or pollutant to enter mounting hole, because mounting hole is vertical
Pollutant is set to be not easy to be attached to inner wall of the hole installing, so as to improve the measurement accuracy of ultrasonic sensor and using the longevity
Life.And the first ultrasonic sensor mounting hole 3 and the second ultrasonic sensor mounting hole 4 are located at gas flow body 1
Both sides, improve the measurement length of ultrasonic wave, and play the layout effect of optimization flow sensor locational space.
Certainly, the utility model is not specifically limited to the quantity of ultrasonic sensor mounting hole and position, in other realities
Apply in example, ultrasonic sensor mounting hole has multigroup, and each group of ultrasonic sensor mounting hole is arranged on runner body 1 axially
Front and rear side on direction.
In the present embodiment, in order that straight reflexed to from the first ultrasonic sensor mounting hole of ultrasonic wave the second surpasses
Sonic sensor mounting hole, reduce measurement difficulty, optimization measurement cost, first reflector 5 and second reflector 6 are equal
For laminated structure, the central axis of first reflector 5 and the first ultrasonic sensor mounting hole 3 in angle of 45 degrees,
The central axis of second reflector 6 and the second ultrasonic sensor mounting hole 4 is in angle of 45 degrees.
Certainly, the utility model is not specifically limited to the structure and position of the first reflector 5 and the second reflector 6,
In other embodiments, the first reflector 5 and the second reflector 6 are polygon diamond structure.
In the present embodiment, in order to reduce the production and application cost of flow sensor, product competitiveness, the stream are improved
The inner chamber of road body 1 is provided with two mounting grooves 7 for installing first reflector 5 and second reflector 6 respectively, and first
The reflector 6 of reflector 5 and second is fixed in mounting groove 7.
In the present embodiment, in order to isolate impurity, prevent that impurity, dust or pollutant from entering mounting hole, described first
The mistake for isolating impurity is separately provided in ultrasonic sensor mounting hole 3 and the second ultrasonic sensor mounting hole 4
Filter screen 8.
In the present embodiment, bending part 10 is provided with the runner body 1, the bending part 10 is positioned at described
Outside the surveying range that first ultrasonic sensor mounting hole 3 and the second ultrasonic sensor mounting hole 4 surround.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (9)
1. a kind of flow passage structure of ultrasonic gas flow sensor, it is characterised in that the flow passage structure includes：
Runner body (1), the gas flow body (1) are internally provided with the gas flow (2) with air admission hole and venthole；
It is respectively arranged with left and right sides of runner body (1) axial direction vertical with the gas flow (2) axial direction
The first ultrasonic sensor mounting hole (3) and the second ultrasonic sensor mounting hole (4), and first supersonic sensing
Device mounting hole (3) and the second ultrasonic sensor mounting hole (4) are separately positioned on the axial direction of the runner body (1)
Front and rear side, the inner chamber of the runner body (1) be additionally provided with respectively with the first ultrasonic sensor mounting hole (3) and institute
State the second ultrasonic sensor mounting hole (4) to be correspondingly arranged, the first reflector (5) and the second reflector for reflectance ultrasound ripple
(6)。
2. flow passage structure according to claim 1, it is characterised in that first reflector (5) and second reflection
Body (6) is laminated structure, the central axis of first reflector (5) and the first ultrasonic sensor mounting hole (3)
In angle of 45 degrees, the central axis of second reflector (6) and the second ultrasonic sensor mounting hole (4) presss from both sides into 45 degree
Angle.
3. flow passage structure according to claim 2, it is characterised in that the inner chamber of the runner body (1) is provided with difference
First reflector (5) and two mounting grooves (7) of second reflector (6) are installed.
4. flow passage structure according to claim 2, it is characterised in that first reflector (5) and second reflection
Body (6) is formed in one in the laminated structure of runner body (1) inner chamber.
5. flow passage structure according to claim 1, it is characterised in that the first ultrasonic sensor mounting hole (3) and
The screen pack (8) for isolating impurity is separately provided in the second ultrasonic sensor mounting hole (4).
6. flow passage structure according to claim 1, it is characterised in that the both ends of the gas flow body (1) are set respectively
It is equipped with the connector (9) being connected with the air admission hole and the venthole.
7. flow passage structure according to claim 1, it is characterised in that be provided with bending part on the runner body (1)
(10), the bending part (10) is located at the first ultrasonic sensor mounting hole (3) and second ultrasonic sensor
Outside the surveying range that mounting hole (4) surrounds.
8. according to the flow passage structure any one of claim 1-7, it is characterised in that the runner body (1) is transversal
Face is rectangular flat structure body.
A kind of 9. flow sensor, it is characterised in that：Including the flow passage structure any one of claim 1-8, Yi Jifen
It is not arranged in the first ultrasonic sensor mounting hole (3) and the second ultrasonic sensor mounting hole (4), for sending out
Penetrate or receive the transducer of transducing sound wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721195555.1U CN207123309U (en) | 2017-09-18 | 2017-09-18 | A kind of flow passage structure and flow sensor of ultrasonic gas flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721195555.1U CN207123309U (en) | 2017-09-18 | 2017-09-18 | A kind of flow passage structure and flow sensor of ultrasonic gas flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207123309U true CN207123309U (en) | 2018-03-20 |
Family
ID=61602071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721195555.1U Active CN207123309U (en) | 2017-09-18 | 2017-09-18 | A kind of flow passage structure and flow sensor of ultrasonic gas flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207123309U (en) |
-
2017
- 2017-09-18 CN CN201721195555.1U patent/CN207123309U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Zhengtai Instrument Measurement Industrial Park, No.1 Liangce Road, Beibaixiang Town, Leqing City, Wenzhou City, Zhejiang Province, 325603 Patentee after: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. Address before: 325603 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. |