CN202956154U - Gas ultrasonic flowmeter denoising device - Google Patents
Gas ultrasonic flowmeter denoising device Download PDFInfo
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- CN202956154U CN202956154U CN 201220738674 CN201220738674U CN202956154U CN 202956154 U CN202956154 U CN 202956154U CN 201220738674 CN201220738674 CN 201220738674 CN 201220738674 U CN201220738674 U CN 201220738674U CN 202956154 U CN202956154 U CN 202956154U
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- gas
- ultrasonic wave
- denoising device
- wave flowmeter
- rectifier cell
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Abstract
The utility model discloses a gas ultrasonic flowmeter denoising device, which belongs to the technical field of automation instrument. The gas ultrasonic flowmeter denoising device includes a shell having an airflow channel; a noise filter element, a rectifying element and a compensating element are successively arranged in the airflow channel; the noise filter element is close to the air inlet of the airflow channel; and the compensating element is close to the air outlet of the airflow channel. Gas is rectified by the rectifying element after the noise generated by converting the mechanical energy to acoustic energy in the throttling process of gas is filtered, dispersed and eliminated by the noise filter element, so that the deviation caused by the gas passing through the filter element meets the national standard; and the flow rate of denoised and rectified gas is increased to the gas flow rate before denoising, so that the gas flowing through the flowmeter has a uniform and stable flow velocity, thereby ensuring the measurement accuracy and long-term stable operation of the gas ultrasonic flowmeter.
Description
Technical field
The utility model belongs to the automation instrument technology field, relates in particular to a kind of Ultrasonic Wave Flowmeter denoising device.
Background technology
Along with instrument and meter for automation, particularly along with the fast development of ultrasonic flow meter technology, a large amount of ultrasonic flow meters has been widely used in the fields such as industrial processes, energy measurement, environmental engineering, communications and transportation, biotechnology, scientific experiment, maritime meteorology, rivers and lakes.Equally, Ultrasonic Wave Flowmeter has also obtained application more and more widely in the pipeline metering.
But, the ultrasonic noise produced in application will affect the normal operation of Ultrasonic Wave Flowmeter, Ultrasonic Wave Flowmeter normal and variable valve in actual applications forms the use of pressure regulation metering string, because being converted into acoustic energy, mechanical energy in throttling process produces high frequency noise, its frequency is close with the Ultrasonic Wave Flowmeter frequency of operation, therefore has a strong impact on the normal operation of Ultrasonic Wave Flowmeter.Some flowrate control valves and pressure regulator valve are in the situation that pressure reduction, high flow rate can produce the noise that reaches the ultrasonic frequency scope greatly, the frequency of operation of some Silent pressure-regulating valve has also reached the ultrasonic frequency scope, and these all may make the Ultrasonic Wave Flowmeter cisco unity malfunction.
The method that suppresses at present ultrasonic hash is shielding and the ground connection of ultrasonic ranging, or to the data of system acquisition, design corresponding algorithm, the signal gathered is processed, thereby reach the purpose of removing noise, or utilize the phase information of ultrasonic testing signals, by the noise suppression algorithm de-noising, above method can't realize suppressing to the ultrasonic hash formed because of throttle part in pipeline, directly affected the measurement of Ultrasonic Wave Flowmeter, the problem such as even can cause that Ultrasonic Wave Flowmeter quits work.
The utility model content
The purpose of this utility model is to provide a kind of Ultrasonic Wave Flowmeter denoising device, and the denoising device of the Ultrasonic Wave Flowmeter provided with the solution prior art affects the Ultrasonic Wave Flowmeter measuring accuracy or causes the out-of-work problem of Ultrasonic Wave Flowmeter.
For solving the problems of the technologies described above, the technical solution of the utility model is: the Ultrasonic Wave Flowmeter denoising device, comprise housing, described housing has gas channel, be provided with successively noise filtering element, rectifier cell and compensating element, in described gas channel, described noise filtering element is near the air intake opening of described gas channel, and described compensating element, is near the gas outlet of described gas channel.
As a kind of improvement, described compensating element, is reducer pipe, and described reducer pipe is greater than the internal diameter away from described rectifier cell one end near the internal diameter of described rectifier cell one end.
As a kind of improvement, between described noise filtering element and described rectifier cell, be provided with buffer air chamber.
As further improvement, described noise filtering element is screen pack.
As further improving, described screen pack is provided with at least two.
As further improving, on the surface of described screen pack, be interval with fin.
As further improvement, described rectifier cell is the rectification tube bank, the some straight tubes of described rectification tube bank for being set together.
Owing to having adopted technique scheme, the beneficial effects of the utility model are: owing to being provided with successively noise filtering element, rectifier cell and compensating element, in the housing with gas channel, this noise filtering element is near the air intake opening of gas channel, and this compensating element, is near the gas outlet of gas channel.After by the noise filtering element, gas mechanical energy in throttling process being converted into to the noise filtering that acoustic energy produces and disperseing to eliminate, carry out rectification by rectifier cell, the gas flow deviation that element causes after filtration is up to state standards, by compensating element,, the gas flow after noise reduction, rectification is increased to noise reduction gas flow before, make gas flow when Ultrasonic Wave Flowmeter, flow velocity is uniform and stable, thereby guarantees precision work steady in a long-term that Ultrasonic Wave Flowmeter is measured.
Because compensating element, is reducer pipe, this reducer pipe is greater than the internal diameter away from rectifier cell one end near the internal diameter of rectifier cell one end.Thereby make the gas flow after noise reduction, rectification be increased to fast noise reduction gas flow before, guarantee the accuracy that Ultrasonic Wave Flowmeter is measured.
Owing between noise filtering element and rectifier cell, being provided with buffer air chamber, make to form the inhomogeneous and unsettled gas of flow velocity through the noise filtering element, through buffer air chamber, make gas uniform distribute.
Because the noise filtering element is screen pack, simple in structure, cheap for manufacturing cost.
Because screen pack is provided with at least two, realized the cascade filtration of noise, further promoted noise reduction.
Be interval with fin on surface due to screen pack, be convenient to noise and disperseed after fin.
Because rectifier cell is the rectification tube bank, the some straight tubes of rectification tube bank for being set together.Be convenient to noise reduction, the buffering after gas pass through smoothly.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
In figure, the 1-screen pack; The 2-buffer air chamber; 3-rectification tube bank; The 4-reducer pipe; The 5-housing.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, this Ultrasonic Wave Flowmeter denoising device comprises housing 5, this housing 5 has gas channel, be provided with successively noise filtering element, rectifier cell and compensating element, in this gas channel, this noise filtering element is near the air intake opening of gas channel, and this compensating element, is near the gas outlet of gas channel; This noise filtering element is preferably screen pack 1, and this screen pack 1 is provided with two, on the surface of this screen pack 1, establish spaced corrugated fin and with surface level in angle of 45 degrees; This rectifier cell is positioned at the downstream of screen pack 1, and this rectifier cell is preferably rectification tube bank 3, and this rectification tube bank 3 is the some straight tubes that are set together and is located in housing 5; Be provided with buffer air chamber 2 between this screen pack 1 and rectification tube bank 3; The downstream of this rectification tube bank 3 is provided with compensating element,, and this compensating element, is preferably reducer pipe 4, and this reducer pipe 4 is greater than the internal diameter away from rectification tube bank 3 one ends near the internal diameter of rectification tube bank 3 one ends.
In actual applications, be sleeved on pipeline by housing 5 and be arranged on the upstream of Ultrasonic Wave Flowmeter, from housing 5 upstream flow, come gas mechanical energy throttling process be converted into acoustic energy and produce noise, this noise follows gas to enter housing 5 inside from the air intake opening of gas channel, and pass through successively screen pack 1, buffer air chamber 2, rectification tube bank 3 and reducer pipe 4, in this process, noise disperses and eliminates through the filtration of two screen packs 1, gas flow can produce the inhomogeneous and unsettled problem of flow velocity after filter screen 1 simultaneously, enter commutator tube bundle 3 after by buffer air chamber 2, the inhomogeneous and unsettled gas uniform of flow velocity being distributed and carry out rectification, the deviation that gas flow is caused through filter screen 1 is up to state standards, gas enters reducer pipe 4 and compensates afterwards, by noise reduction, gas flow after rectification is increased to the gas flow before noise reduction, make gas flow when Ultrasonic Wave Flowmeter, flow velocity is uniform and stable, thereby guarantee precision work steady in a long-term that Ultrasonic Wave Flowmeter is measured.
The Ultrasonic Wave Flowmeter denoising device that the utility model provides comprises housing 5, this housing 5 has gas channel, be provided with successively noise filtering element, rectifier cell and compensating element, in this gas channel, this noise filtering element is near the air intake opening of gas channel, and this compensating element, is near the gas outlet of gas channel.After by the noise filtering element, gas mechanical energy in throttling process being converted into to the noise filtering that acoustic energy produces and disperseing to eliminate, carry out rectification by rectifier cell, the gas flow deviation that element causes after filtration is up to state standards, by compensating element,, the gas flow after noise reduction, rectification is increased to noise reduction gas flow before, make gas flow when Ultrasonic Wave Flowmeter, flow velocity is uniform and stable, thereby guarantees precision work steady in a long-term that Ultrasonic Wave Flowmeter is measured.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. Ultrasonic Wave Flowmeter denoising device, comprise housing, described housing has gas channel, it is characterized in that, be provided with successively noise filtering element, rectifier cell and compensating element, in described gas channel, described noise filtering element is near the air intake opening of described gas channel, and described compensating element, is near the gas outlet of described gas channel.
2. Ultrasonic Wave Flowmeter denoising device according to claim 1, is characterized in that, described compensating element, is reducer pipe, and described reducer pipe is greater than the internal diameter away from described rectifier cell one end near the internal diameter of described rectifier cell one end.
3. Ultrasonic Wave Flowmeter denoising device according to claim 1, is characterized in that, between described noise filtering element and described rectifier cell, is provided with buffer air chamber.
4. according to the described Ultrasonic Wave Flowmeter denoising device of claim 1 or 3, it is characterized in that, described noise filtering element is screen pack.
5. Ultrasonic Wave Flowmeter denoising device according to claim 4, is characterized in that, described screen pack is provided with at least two.
6. Ultrasonic Wave Flowmeter denoising device according to claim 5, is characterized in that, on the surface of described screen pack, is interval with fin.
7. Ultrasonic Wave Flowmeter denoising device according to claim 1 and 2, is characterized in that, described rectifier cell is the rectification tube bank, the some straight tubes of described rectification tube bank for being set together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738674 CN202956154U (en) | 2012-12-28 | 2012-12-28 | Gas ultrasonic flowmeter denoising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738674 CN202956154U (en) | 2012-12-28 | 2012-12-28 | Gas ultrasonic flowmeter denoising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202956154U true CN202956154U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220738674 Expired - Lifetime CN202956154U (en) | 2012-12-28 | 2012-12-28 | Gas ultrasonic flowmeter denoising device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202956154U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487098A (en) * | 2013-09-25 | 2014-01-01 | 山东思达特测控设备有限公司 | Noise reduction and rectification device for gas ultrasonic flow meter |
| CN107014450A (en) * | 2017-04-29 | 2017-08-04 | 成都伦慈仪表有限公司 | The ultrasonic flowmeter of noise reduction rectifier structure and its composition |
| CN107328447A (en) * | 2017-07-24 | 2017-11-07 | 中国计量大学 | Well head gas-liquid biphase flowmeter amount method and device |
| CN111765932A (en) * | 2020-05-19 | 2020-10-13 | 临沂市东方仪表有限公司 | Ultrasonic water meter jam-proof device |
| 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 |
-
2012
- 2012-12-28 CN CN 201220738674 patent/CN202956154U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487098A (en) * | 2013-09-25 | 2014-01-01 | 山东思达特测控设备有限公司 | Noise reduction and rectification device for gas ultrasonic flow meter |
| CN103487098B (en) * | 2013-09-25 | 2015-09-09 | 山东思达特测控设备有限公司 | A kind of Ultrasonic Wave Flowmeter noise reduction fairing |
| CN107014450A (en) * | 2017-04-29 | 2017-08-04 | 成都伦慈仪表有限公司 | The ultrasonic flowmeter of noise reduction rectifier structure and its composition |
| CN107014450B (en) * | 2017-04-29 | 2023-11-14 | 成都伦慈仪表有限公司 | Noise reduction rectifying structure and ultrasonic flowmeter comprising same |
| CN107328447A (en) * | 2017-07-24 | 2017-11-07 | 中国计量大学 | Well head gas-liquid biphase flowmeter amount method and device |
| CN111765932A (en) * | 2020-05-19 | 2020-10-13 | 临沂市东方仪表有限公司 | Ultrasonic water meter jam-proof device |
| 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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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |
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| CX01 | Expiry of patent term |