CN207850450U - A kind of Ultrasonic Wave Flowmeter noise reduction fairing - Google Patents
A kind of Ultrasonic Wave Flowmeter noise reduction fairing Download PDFInfo
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- CN207850450U CN207850450U CN201721671996.4U CN201721671996U CN207850450U CN 207850450 U CN207850450 U CN 207850450U CN 201721671996 U CN201721671996 U CN 201721671996U CN 207850450 U CN207850450 U CN 207850450U
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- noise reduction
- level
- gas
- compensating element
- ultrasonic wave
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Abstract
The utility model discloses a kind of Ultrasonic Wave Flowmeter noise reduction fairings, including shell, the both ends of shell are equipped with gas feed and gas vent, noise reduction rectification module is equipped in the shell, noise reduction rectification module is connected with gas feed, gas vent, and gas chamber is equipped between noise reduction rectification module and shell.It has the following advantages：It overcomes noise jamming in the prior art and measures the defect that inaccurate or gas ultrasonic flowmeter is stopped caused by gas ultrasonic flowmeter, so that Uniform gas flow velocity, stabilization in ultrasonic flowmeter, high certainty of measurement, the error of ultrasonic flowmeter be small, strong antijamming capability.
Description
Technical field
Being suitable for gas ultrasonic flowmeter in metering to the filtering of gas, noise reduction and rectification the utility model is related to a kind of
Noise reduction fairing, belong to automation instrument technology field.
Background technology
With the fast development of digital instrument especially ultrasonic flowmeter technology, a large amount of ultrasonic flowmeter has been widely used
In the measurement of the gases such as natural gas, oil gas and coal gas, but mounting condition and the environment institute of various situations in practical applications
The noise of generation will influence the normal metering of ultrasonic flowmeter.
Currently, the use of ultrasonic flowmeter has the following disadvantages：1, in practical applications, gas ultrasonic flowmeter often with tune
Section valve is used in conjunction with；2, during Valve control gas throttles, mechanical energy is converted into acoustic energy and generates high-frequency noise,
Frequency is close with the working frequency of gas ultrasonic flowmeter, therefore seriously affects the normal work of gas ultrasonic flowmeter.
Currently, there are many methods for inhibiting ultrasonic hash, typically using noise suppression algorithm come de-noising, this side
The noise that method forms pipeline internal cause throttle part can not inhibit, and directly affect the metering of gas ultrasonic flowmeter.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Ultrasonic Wave Flowmeter drop for the above deficiency
It makes an uproar fairing, overcoming noise jamming in the prior art, that inaccurate or gas is measured caused by gas ultrasonic flowmeter is super
The defect that sonic flowmeter is stopped so that Uniform gas flow velocity, stabilization in ultrasonic flowmeter, the measurement essence of ultrasonic flowmeter
Degree is high, error is small, strong antijamming capability.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of Ultrasonic Wave Flowmeter noise reduction fairing, including shell, the both ends of shell be equipped with gas feed and
Gas vent, the shell is interior to be equipped with noise reduction rectification module, and noise reduction rectification module is connected with gas feed, gas vent, drops
It makes an uproar and is equipped with gas chamber between rectification module and shell.
Further, the noise reduction rectification module includes rectifier cell and two level compensating element, two level compensating element, with it is whole
Fluid element is formed with level 2 buffering room.
Further, the noise reduction rectification module further includes level-one compensating element, and buffering blind plate, level-one compensating element, with
It is formed with first-level buffer room between buffering blind plate.
Further, the level-one noise reduction elements are opened on the inner wall of first-level buffer room.
Further, the noise reduction rectification module further includes noise reduction elements, and noise reduction elements include level-one noise reduction elements and two
Grade noise reduction elements, level-one noise reduction elements one end are equipped with buffering blind plate, and the setting of two level noise reduction elements is compensated in buffering blind plate and two level
Between element.
Further, the rectifier cell is arranged the gas outlet in shell, and rectifier cell is tubular, on rectifier cell
Equipped with several axially extending bores.
Further, the noise reduction rectification module further includes compensating element, and compensating element, includes level-one compensating element, and two
Grade compensating element, level-one compensating element, and two level compensating element, are connected with the gas feed of shell, gas vent respectively.
Further, the compensating element, is tubular, and compensating element, is equipped with several first radial through-hole, and first is radial logical
The axis in hole and circle where axis are tangent, and the axis of the first radial through-hole intersects 25 ° with the axis of the cylindrical body of compensating element,.
Further, the compensating element, includes fold plate and thin plate, and the combination of several fold plates and thin plate is rolled as cylinder
Shape forms compensating element, and fold plate is placed on thin plate.
Further, the fold on the fold plate is arranged with horizontal direction in 45° angle.
Ultrasonic Wave Flowmeter described in the utility model is had the following advantages with noise reduction fairing：
It overcomes noise jamming in the prior art and measures inaccurate or gas ultrasound caused by gas ultrasonic flowmeter
The defect that flowmeter is stopped so that Uniform gas flow velocity, stabilization in ultrasonic flowmeter, the measurement accuracy of ultrasonic flowmeter
It is high, error is small, strong antijamming capability.
The utility model is described in detail with reference to the accompanying drawings and examples.
Description of the drawings
Fig. 1 is the structural schematic diagram of noise reduction fairing in utility model embodiment；
Fig. 2 is the structural schematic diagram of compensating element, in utility model embodiment；
Fig. 3 is the structural schematic diagram of fold plate and thin plate in utility model embodiment；
Fig. 4 is the structural schematic diagram of fold plate in utility model embodiment；
Fig. 5 is the structural schematic diagram of rectifier cell in utility model embodiment；
In figure：1- shells, 2- level-one compensating element,s, 3- first-level buffers room, 4- level-one noise reduction elements, 5- buffer blind plate, 6-
Gas chamber, 7- two level compensating element,s, 8- level 2 bufferings room, 9- rectifier cells, 10- gas feeds, 11- two level noise reduction elements, 12- are thin
Plate, 13- fold plates, 14- axially extending bores, the first radial through-hole of 16-.
Specific implementation mode
Embodiment 1, as shown in Figures 1 to 5, a kind of Ultrasonic Wave Flowmeter noise reduction fairing, including shell 1,
It is equipped with noise reduction rectification module in shell 1, gas chamber 6 is equipped between noise reduction rectification module and shell 1.
1 one end of the shell is equipped with gas feed 10, and the other end of shell 1 is equipped with gas vent, noise reduction rectification module with
Gas feed, gas vent are connected.
The noise reduction rectification module includes rectifier cell 9, and the gas outlet in shell 1, rectification member is arranged in rectifier cell 9
Part 9 is tubular, and rectifier cell 9 is equipped with several axially extending bores 14.
The noise reduction rectification module further includes compensating element, and compensating element, includes level-one compensating element, 2 and two level compensation member
Part 7, level-one compensating element, 2 and two level compensating element, 7 are connected with the gas feed of shell 1, gas vent respectively.
The compensating element, is tubular, and compensating element, is equipped with several first radial through-hole 16, the first radial through-hole 16
Axis and circle where axis are tangent, and the axis of the first radial through-hole 16 intersects 25 ° with the axis of the cylindrical body of compensating element, compensation
Element includes fold plate 13 and thin plate 12, and the combination of several fold plates 13 and thin plate 12 is rolled forms compensating element, pleat for tubular
Wrinkle plate 13 is placed on thin plate 12, and fold plate 13 is several folds by another its length compression of thin plate upper edge and formed, fold
Fold on plate 13 is arranged with horizontal direction in 45° angle.
The noise reduction rectification module further includes noise reduction elements, and noise reduction elements include level-one noise reduction elements 4 and two level noise reduction member
Part 11,4 one end of level-one noise reduction elements are equipped with buffering blind plate 5, and gas after buffering blind plate 5 by entering level-one noise reduction elements 4, gas
Again by level-one noise reduction elements 4 into air inlet chamber 6.
It is formed with first-level buffer room 3 between the level-one compensating element, 2 and buffering blind plate 5, level-one noise reduction elements 4 are opened in
On the inner wall of first-level buffer room 3, the setting of two level noise reduction elements 11 is between buffering blind plate 5 and two level compensating element, 7, two level compensation
Element 7 is formed with level 2 buffering room 8 with rectifier cell 9.
The level-one compensating element, 2, first-level buffer room 3, buffering blind plate 5, two level noise reduction elements 11, two level compensating element, 7,
Level 2 buffering room 8, rectifier cell 9 are set gradually along the flow direction of gas.
In practical applications, noise reduction fairing is mounted on to the upstream of Ultrasonic Wave Flowmeter, gas can be nestled up
Body ultrasonic flowmeter is installed, can also be spaced apart（Distance can determine according to site space size）, whole in noise reduction
The gas that stream device upstream comes mechanical energy in throttling process is converted into acoustic energy and generates noise, which enters with gas
Inside shell 1, and pass through compensating element, 2, first-level buffer gas chamber 3, buffering blind plate 5, noise reduction elements 4, gas chamber 6, noise reduction member successively
Part 11, compensating element, 7, level 2 buffering gas chamber 8, rectifier cell 9, in the process, gas is by level 2 buffering gas chamber 8 in it
Portion is redistributed, while becoming uniform and stable air-flow after the rectified element of gas stream 9, steady by air-flow when gas vent
It is distributed calmly and repeatability is fabulous.
Gas is entered by gas feed, by fire-retardant core（Compensating element,）Later regardless of gas feed forward end gas divides
Then cloth carries out noise reduction and rectification through filtering rectifier cell into that will go redistribution in gas chamber to gas.By noise reduction member
Gas enters compensating element, after part, is compensated to the gas field of gas in compensating element, realization.Compensating element, and rectifier cell it
Between have buffer air chamber.Through buffer air chamber to rectifier cell after gas overcompensation element, gas is carried out again in rectifier cell whole
Stream.After over commutation, Uniform gas flow velocity, stabilization so that high certainty of measurement, the error of ultrasonic flowmeter be small, anti-interference ability
By force.
Gas after the noise reduction of noise reduction fairing and rectification, caused by deviation be up to state standards, using gas
When ultrasonic flowmeter measures, it is ensured that its measurement accuracy and long-term work.
The description of the utility model provides for the sake of example and description, and is not that exhaustively or incite somebody to action this
Utility model is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.
Selection and description embodiment are and to make the common of this field to better illustrate the principles of the present invention and practical application
Technical staff is it will be appreciated that various embodiments with various modifications of the utility model to design suitable for special-purpose.
Claims (10)
1. a kind of Ultrasonic Wave Flowmeter noise reduction fairing, including shell（1）, shell（1）Both ends be equipped with gas into
Mouth and gas vent, it is characterised in that：The shell（1）It is interior to be equipped with noise reduction rectification module, noise reduction rectification module and gas feed,
Gas vent is connected, noise reduction rectification module and shell（1）Between be equipped with gas chamber（6）.
2. a kind of Ultrasonic Wave Flowmeter noise reduction fairing as described in claim 1, it is characterised in that：The noise reduction
Rectification module includes rectifier cell（9）With two level compensating element,（7）, two level compensating element,（7）With rectifier cell（9）It is formed with two
Grade surge chamber（8）.
3. a kind of Ultrasonic Wave Flowmeter noise reduction fairing as described in claim 1, it is characterised in that：The noise reduction
Rectification module further includes level-one compensating element,（2）With buffering blind plate（5）, level-one compensating element,（2）With buffering blind plate（5）Between shape
At there is first-level buffer room（3）.
4. a kind of Ultrasonic Wave Flowmeter noise reduction fairing as claimed in claim 3, it is characterised in that：The noise reduction
Fairing further includes level-one noise reduction elements（4）, level-one noise reduction elements（4）It is opened in first-level buffer room（3）Inner wall on.
5. a kind of Ultrasonic Wave Flowmeter noise reduction fairing as claimed in claim 2, it is characterised in that：The noise reduction
Rectification module further includes noise reduction elements, and noise reduction elements include level-one noise reduction elements（4）With two level noise reduction elements（11）, level-one noise reduction
Element（4）One end is equipped with buffering blind plate（5）, two level noise reduction elements（11）Setting is in buffering blind plate（5）With two level compensating element,（7）
Between.
6. a kind of Ultrasonic Wave Flowmeter noise reduction fairing as claimed in claim 2, it is characterised in that：The rectification
Element（9）It is arranged in shell（1）Gas outlet, rectifier cell（9）For tubular, rectifier cell（9）It is equipped with several axis
To through-hole（14）.
7. a kind of Ultrasonic Wave Flowmeter noise reduction fairing as described in claim 1, it is characterised in that：The noise reduction
Rectification module further includes compensating element, and compensating element, includes level-one compensating element,（2）With two level compensating element,（7）, level-one compensation
Element（2）With two level compensating element,（7）Respectively with shell（1）Gas feed, gas vent is connected.
8. a kind of Ultrasonic Wave Flowmeter noise reduction fairing as claimed in claim 7, it is characterised in that：The compensation
Element is tubular, and compensating element, is equipped with several first radial through-hole（16）, the first radial through-hole（16）Axis and axis institute
It is tangent in circle, the first radial through-hole（16）Axis intersect 25 ° with the axis of the cylindrical body of compensating element,.
9. a kind of Ultrasonic Wave Flowmeter noise reduction fairing as claimed in claim 7, it is characterised in that：The compensation
Element includes fold plate（13）With thin plate（12）, several fold plates（13）With thin plate（12）Combination roll for tubular formed compensate
Element, fold plate（13）It is placed on thin plate（12）On.
10. a kind of Ultrasonic Wave Flowmeter noise reduction fairing as claimed in claim 9, it is characterised in that：The pleat
Wrinkle plate（13）On fold and horizontal direction in 45° angle setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671996.4U CN207850450U (en) | 2017-12-05 | 2017-12-05 | A kind of Ultrasonic Wave Flowmeter noise reduction fairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671996.4U CN207850450U (en) | 2017-12-05 | 2017-12-05 | A kind of Ultrasonic Wave Flowmeter noise reduction fairing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207850450U true CN207850450U (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721671996.4U Active CN207850450U (en) | 2017-12-05 | 2017-12-05 | A kind of Ultrasonic Wave Flowmeter noise reduction fairing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747260A (en) * | 2020-12-29 | 2021-05-04 | 中国华能集团清洁能源技术研究院有限公司 | Ultrasonic flow measuring device capable of preventing noise interference |
-
2017
- 2017-12-05 CN CN201721671996.4U patent/CN207850450U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747260A (en) * | 2020-12-29 | 2021-05-04 | 中国华能集团清洁能源技术研究院有限公司 | Ultrasonic flow measuring device capable of preventing noise interference |
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