CN209085689U - A kind of ultrasonic flowmeter noise reduction fairing - Google Patents
A kind of ultrasonic flowmeter noise reduction fairing Download PDFInfo
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- CN209085689U CN209085689U CN201821728178.8U CN201821728178U CN209085689U CN 209085689 U CN209085689 U CN 209085689U CN 201821728178 U CN201821728178 U CN 201821728178U CN 209085689 U CN209085689 U CN 209085689U
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- gas
- hollow tube
- noise reduction
- rectifier cell
- ultrasonic flowmeter
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Abstract
The utility model discloses a kind of ultrasonic flowmeter noise reduction fairings, including hollow tube, one end of the hollow tube is fixedly installed with conical nozzle, the conical nozzle is equipped with air inlet far from the side of hollow tube, the conical nozzle is fixedly installed with gas noise reduction filter mechanism far from the inside of air inlet, the inside of the hollow tube is successively arranged first gas rectifier cell and gas compensating element, from right to left, gas buffer region is formed between the first gas rectifier cell and gas noise reduction filter mechanism, the other end of the hollow tube is inserted with the second gas rectifier cell being connected with inside it, and the inner wall of second gas rectifier cell and hollow tube is tightly connected.The utility model structure is simple, easy to operate, convenient for be connected between component disassembly installation, consequently facilitating replacing to its internal element, while also improving the noise reduction rectification effect of flowmeter to a certain extent.
Description
Technical field
The utility model relates to flowmeter noise reduction commutation technique field more particularly to a kind of ultrasonic flowmeter noise reduction are whole
Flow device.
Background technique
With the fast development of digital instrument especially ultrasonic flow meter technology, a large amount of ultrasonic flowmeter is extensive
Measurement applied to gases such as natural gas, heating and coal gas.But ultrasonic flowmeter is at work, some flow controls
Valve and pressure regulator valve can generate the noise for reaching ultrasonic frequency range in the case where big pressure difference, high flow rate, control gas in valve
During body segment stream, mechanical energy is converted into sound energy and generates high-frequency noise, the work of frequency and Ultrasonic Wave Flowmeter
Frequency is close, therefore seriously affects the normal work of Ultrasonic Wave Flowmeter.
Ultrasonic flowmeter noise reduction fairing is also related in the prior art, and through retrieving, Chinese patent grant number is
CN207850450U discloses a kind of Ultrasonic Wave Flowmeter noise reduction fairing, including shell, and the both ends of shell are equipped with
Gas feed and gas vent, the shell is interior to be equipped with noise reduction rectification module, noise reduction rectification module and gas feed, gas vent
It is connected, gas chamber is equipped between noise reduction rectification module and shell.
By the way that the elements such as level-one compensating element, first-level buffer room, level-one noise reduction elements are arranged in shell in documents,
Although noise jamming is overcome to measure what inaccurate or gas ultrasonic flowmeter stopped working caused by gas ultrasonic flowmeter
Defect, but the assembling of each element of enclosure interior is more troublesome, and layout designs technique degree is more demanding, and is not easy to dismantle
Replacement.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of ultrasonic flow proposed
Meter noise reduction fairing.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of ultrasonic flowmeter noise reduction fairing, including hollow tube, the fixed peace in one end of the hollow tube
Equipped with conical nozzle, the conical nozzle is equipped with air inlet far from the side of hollow tube, and the conical nozzle is far from air inlet
Inside be fixedly installed with gas noise reduction filter mechanism, it is whole that the inside of the hollow tube is successively arranged first gas from right to left
Fluid element and gas compensating element, form gas buffer between the first gas rectifier cell and gas noise reduction filter mechanism
Area, the other end of the hollow tube is inserted with the second gas rectifier cell being connected with inside it, and second gas rectifies
The inner wall of element and hollow tube is tightly connected, and the second gas rectifier cell is equipped with outlet far from one end of hollow tube
Mouthful.
Preferably, the conical nozzle is described far from being fixedly connected with the first connecting flange on one end side wall of air inlet
Hollow tube is fixedly connected with the second connecting flange corresponding with the first connecting flange position close to one end of conical nozzle, described
First connecting flange is mutually fixedly connected with the second connecting flange by clamping screw.
Preferably, the gas noise reduction filter mechanism includes the first dampening foams mistake being successively set on inside conical nozzle
The surface of filter pulp and the second dampening foams filter cotton, the first dampening foams filter cotton and the second dampening foams filter cotton is impartial
Spacing is equipped with multiple honeycomb filter holes.
Preferably, the gas compensation element is wavy metal fire-retardant core, and the gas compensation element is located at first gas
Between rectifier cell and second gas rectifier cell.
Preferably, the first gas rectifier cell is to match to connect with hollow tube with second gas rectifier cell
Cylindrical rectifying tube, be respectively equipped with axial rectification through-hole inside two cylindrical rectifying tubes.
Preferably, fixing sleeve is connected to annular fixing sleeve corresponding with hollow tube position, institute on the side wall of the gas outlet
It states annular fixing sleeve and is connected by fixing screws with the side wall of hollow tube, and pass through between hollow tube and annular fixing sleeve
Ring type seal is connected and sealed.
The utility model compared with prior art, has the beneficial effect that
1, by the way that detachable type will be arranged at hollow tube, conical nozzle and second gas rectifier cell, just
It avoids influencing convenient for the periodic replacement of each element in its inside in carrying out assembly and disassembly to all parts in noise reduction fairing
Using effect；
2, second gas rectifier cell is added in the hollow tube other side by setting, second gas rectifier cell cooperation the
One gas rectifier cell rectifies the gas flowed through, helps to be scattered in from the gas that gas outlet is flowed out certainly however stable
Air-flow；
3, two dampening foams filter cottons are set by gas noise reduction filter mechanism, foamed filter cotton not only plays gas
Filtration also has very strong noise-reduction effect.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of ultrasonic flowmeter noise reduction fairing internal view；
Fig. 2 be the utility model proposes not the installing of a kind of ultrasonic flowmeter noise reduction fairing before structure show
It is intended to；
Fig. 3 be the utility model proposes a kind of ultrasonic flowmeter noise reduction fairing partial sectional view；
Fig. 4 be the utility model proposes a kind of ultrasonic flowmeter noise reduction fairing second gas rectifier cell
Side schematic view；
Fig. 5 be the utility model proposes a kind of ultrasonic flowmeter noise reduction fairing first gas rectifier cell
Side schematic view.
In figure: 1 hollow tube, 2 conical nozzles, 3 second gas rectifier cells, 4 air inlets, 5 gas outlets, 6 first noise reductions
Foamed filter cotton, 7 second dampening foams filter cottons, 8 first connecting flanges, 9 first gas rectifier cells, 10 gas buffer regions,
11 gas compensation elements, 12 second connecting flanges, 13 annular fixing sleeves, 14 ring type seals.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-5, a kind of ultrasonic flowmeter noise reduction fairing, including hollow tube 1, the one of hollow tube 1
End is fixedly installed with conical nozzle 2, and conical nozzle 2 is equipped with air inlet 4 far from the side of hollow tube 1, conical nozzle 2 far from into
The first connecting flange 8 is fixedly connected on one end side wall of port 4, hollow tube 1 is fixedly connected close to one end of conical nozzle 2
There is the second connecting flange 12 corresponding with 8 position of the first connecting flange, the first connecting flange 8 and the second connecting flange 12 pass through lock
Tight bolt is mutually fixedly connected, and the second connecting flange 16, the second connecting flange 12 are detachably connected, convenient for by conical nozzle 2 from
It is disassembled on hollow tube 1, so convenient for each element is separately mounted to conical nozzle 2, in hollow tube 1.
Conical nozzle 2 is fixedly installed with gas noise reduction filter mechanism far from the inside of air inlet 4, specifically, gas noise reduction
Filter mechanism includes the first dampening foams filter cotton 6 and the second dampening foams filter cotton being successively set on inside conical nozzle 2
7, the surface of the first dampening foams filter cotton 6 and the second dampening foams filter cotton 7 is equidistantly equipped with multiple honeycomb filter holes,
In the gas that noise reduction fairing upstream comes, mechanical energy is converted into sound energy and generates noise in throttling process, and the noise is adjoint
Gas is imported in conical nozzle 2 by air inlet 4, and successively passes through the first dampening foams filter cotton 6 and the second dampening foams mistake
Filter pulp 7 is filtered noise reduction, in addition, honeycomb filter hole helps to improve the contact range between gas and silencing cotton, improves
Filter noise reduction effect.
The inside of hollow tube 1 is successively arranged first gas rectifier cell 9 and gas compensating element, 11, gas from right to left
Compensating element, 11 is wavy metal fire-retardant core, and the gas redistribution after helping compensate for, gas compensation element 11 is located at first
Between gas rectifier cell 9 and second gas rectifier cell 3.
Between first gas rectifier cell 9 and gas noise reduction filter mechanism formed gas buffer region 10, hollow tube 1 it is another
One end is inserted with the second gas rectifier cell 3 being connected with inside it, and second gas rectifier cell 3 and hollow tube 1
Inner wall is tightly connected, and second gas rectifier cell 3 is equipped with gas outlet 5 far from one end of hollow tube 1.
First gas rectifier cell 9 and second gas rectifier cell 3 are the cylinder of connection of matching with hollow tube 1
Rectifying tube is respectively equipped with axial rectification through-hole inside two cylindrical rectifying tubes, and the axial rectification through-hole of setting facilitates gas
Rectification distribution.
In addition, it should be noted that, fixing sleeve is connected to annular corresponding with 1 position of hollow tube on the side wall of gas outlet 5
Fixing sleeve 13, annular fixing sleeve 13 are connected by fixing screws with the side wall of hollow tube 1, and hollow tube 1 and annular are solid
Surely it being connected and sealed between set 13 by ring type seal 14, annular fixing sleeve 13 is used cooperatively with ring type seal 14,
Improve the leakproofness between 1 inner wall of second gas rectifier cell 3 and hollow tube.
In the utility model, noise reduction fairing is mounted on to the upstream of Ultrasonic Wave Flowmeter, gas can be nestled up
Body ultrasonic flowmeter is installed, and flow monitoring probe is equipped in Ultrasonic Wave Flowmeter, this is the prior art, whole in noise reduction
The gas that stream device upstream comes mechanical energy in throttling process is converted into sound energy and generates noise, which passes through with gas
Air inlet 4 imports in conical nozzle 2, and successively passes through the first dampening foams filter cotton 6, the second dampening foams filter cotton 7, gas
Buffer area 10, first gas rectifier cell 9, gas compensation element and second gas rectifier cell 3, finally by gas outlet 5
Discharge, in the process, gas first passes through the first dampening foams filter cotton 6, the second dampening foams with honeycomb filter hole
Filter cotton 7 is filtered noise reduction, and the gas gas coming through buffer area 10 after noise reduction keeps flow velocity uneven by gas buffer region 10
It enters back into first gas rectifier cell 9 and is rectified after being uniformly distributed with unstable gas, then stable air-flow passes through
It can be scattered in oneself after gas compensation element 11 however stable air-flow, be carried out finally by second gas rectifier cell 3 secondary
Rectification outflow, the gas after secondary rectification can become repeated fabulous, to realize the function of noise reduction rectification.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of ultrasonic flowmeter noise reduction fairing, including hollow tube (1), which is characterized in that the hollow tube
(1) one end is fixedly installed with conical nozzle (2), and the conical nozzle (2) is equipped with air inlet far from the side of hollow tube (1)
(4), the conical nozzle (2) is fixedly installed with gas noise reduction filter mechanism, the hollow tube far from the inside of air inlet (4)
(1) inside is successively arranged first gas rectifier cell (9) and gas compensating element, (11) from right to left, and the first gas is whole
Gas buffer region (10) are formed between fluid element (9) and gas noise reduction filter mechanism, the other end of the hollow tube (1) plugs
There is a second gas rectifier cell (3) being connected with inside it, and second gas rectifier cell (3) and hollow tube (1) is interior
Wall is tightly connected, and the second gas rectifier cell (3) is equipped with gas outlet (5) far from the one end of hollow tube (1).
2. a kind of ultrasonic flowmeter noise reduction fairing according to claim 1, which is characterized in that the conical pipe
Mouth (2) on one end side wall of air inlet (4) far from being fixedly connected with the first connecting flange (8), and the hollow tube (1) is close to cone
One end of shape nozzle (2) is fixedly connected with the second connecting flange (12) corresponding with the first connecting flange (8) position, and described first
Connecting flange (8) is mutually fixedly connected with the second connecting flange (12) by clamping screw.
3. a kind of ultrasonic flowmeter noise reduction fairing according to claim 1, which is characterized in that the gas drop
Filter mechanism of making an uproar includes being successively set on conical nozzle (2) internal the first dampening foams filter cotton (6) and the second dampening foams
The surface of filter cotton (7), the first dampening foams filter cotton (6) and the second dampening foams filter cotton (7) is equidistantly equipped with
Multiple honeycomb filter holes.
4. a kind of ultrasonic flowmeter noise reduction fairing according to claim 1, which is characterized in that the gas is mended
Repaying element (11) is wavy metal fire-retardant core, and the gas compensation element (11) is located at first gas rectifier cell (9) and second
Between gas rectifier cell (3).
5. a kind of ultrasonic flowmeter noise reduction fairing according to claim 1, which is characterized in that first gas
Body rectifier cell (9) and second gas rectifier cell (3) are the cylindrical rectifying tube of connection of matching with hollow tube (1),
Axial rectification through-hole is respectively equipped with inside two cylindrical rectifying tubes.
6. a kind of ultrasonic flowmeter noise reduction fairing according to claim 1, which is characterized in that the gas outlet
(5) fixing sleeve is connected to annular fixing sleeve (13) corresponding with hollow tube (1) position, the annular fixing sleeve (13) on side wall
It is connected by fixing screws with the side wall of hollow tube (1), and passes through ring between hollow tube (1) and annular fixing sleeve (13)
Shape sealing ring (14) is connected and sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821728178.8U CN209085689U (en) | 2018-10-24 | 2018-10-24 | A kind of ultrasonic flowmeter noise reduction fairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821728178.8U CN209085689U (en) | 2018-10-24 | 2018-10-24 | A kind of ultrasonic flowmeter noise reduction fairing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209085689U true CN209085689U (en) | 2019-07-09 |
Family
ID=67120653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821728178.8U Active CN209085689U (en) | 2018-10-24 | 2018-10-24 | A kind of ultrasonic flowmeter noise reduction fairing |
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| CN (1) | CN209085689U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572050A (en) * | 2019-08-12 | 2019-12-13 | 湖南国丰电力设备有限公司 | Noise reduction rectifier |
| 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 |
| CN113639812A (en) * | 2021-08-17 | 2021-11-12 | 上海真兰仪表科技股份有限公司 | Leading rectification mechanism of ultrasonic gas meter |
-
2018
- 2018-10-24 CN CN201821728178.8U patent/CN209085689U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572050A (en) * | 2019-08-12 | 2019-12-13 | 湖南国丰电力设备有限公司 | Noise reduction rectifier |
| 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 |
| CN113639812A (en) * | 2021-08-17 | 2021-11-12 | 上海真兰仪表科技股份有限公司 | Leading rectification mechanism of ultrasonic gas meter |
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