CN205279106U - Frequency conversion sound wave soot blower - Google Patents
Frequency conversion sound wave soot blower Download PDFInfo
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- CN205279106U CN205279106U CN201520815192.1U CN201520815192U CN205279106U CN 205279106 U CN205279106 U CN 205279106U CN 201520815192 U CN201520815192 U CN 201520815192U CN 205279106 U CN205279106 U CN 205279106U
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Abstract
The utility model relates to a frequency conversion sound wave soot blower, including adjustable frequency motor and sound wave conversion device, wherein the adjustable frequency motor includes converter and motor, the converter passes through the cable and links to each other with the motor, wherein the rotary valve that the sound wave conversion device includes sound wave conversion cavity and is located the cavity, the rotary valve with clearance between sound wave conversion cavity is less than 0.05mm, sound wave conversion cavity has compressed air entry and sound wave export, the rotary valve is connected to the output of adjustable frequency motor and lies in compressed air entry with in the runner between the sound wave export, be provided with a plurality of holes of cutting of cutting into the cosine sound wave with the air current on the rotary valve, wherein be in the sound wave exit of sound wave conversion cavity still is connected with the sound wave pipe of hyperbolic threadiness. This neotype ash remover acoustic wave frequency and radiant power improve by a wide margin, can satisfy the dusting job requirements of various industrial boiler heat -transfer surfaces well.
Description
Technical field
Basis is novel relates to a kind of industry soot blower, particularly relates to a kind of frequency conversion acoustic wave ash ejector.
Background technology
Sonic soot blowing is the principle utilizing the subject such as acoustics, vibration, by sonic generator, the sound wave of some strength is delivered in stove. Owing to sound wave has the characteristic such as comprehensive propagation and high speed periodic swinging, many point sound sources are propagated in burner hearth, reflect, are reflected and form a sound field, black dirt on heat-transfer surface in burner hearth is departed from, falls into slag bucket or taken away by flue gas stream, thus reaching dedusting purpose.
Existing frequency conversion soot blower, generally comprises the reel rotated by motor-driven and the nozzle against this reel, makes this reel periodically open and close the entrance of this nozzle, so that compression air produces frequency conversion sound wave. In general, in existing soot blower, sonic generator chamber inner wall and the gap of rotation reel are more than 0.5mm, and phonation efficiency is very low, is typically between 3��4%; Rotating the frequency of sound wave scope of reel output between 100��600Hz, during normal operation, noise radiation is at more than 100dB.
In actual motion, it has been found that existing frequency conversion soot blower has the disadvantage that 1. acoustic wave energy radiation efficiencies are low, it is not more than 145dB from 1 meter of sound pressure level of sound source, it is impossible to remove the viscous ash deposit that severe fuel is formed; 2. frequency of sound wave adjustable extent is narrow, is typically between 100��600Hz, conventional between 200��400Hz in practical application, it is impossible to fully covering existing ash, sonic soot blowing is not thorough; 3. heating furnace or the outer noise of boiler are at more than 100dB, are typically between 105��115dB, have a strong impact on the working environment of operator; 4. processing technique is coarse, and machining accuracy is low, it is easy to cause bite phenomenon.
Utility model content
This is novel is to solve the above-mentioned problems in the prior art at least in part, it is proposed to a kind of high-power frequency conversion acoustic wave ash ejector.
According to the aspect that this is novel, provide a kind of frequency conversion acoustic wave ash ejector, including adjustable frequency motor and sound wave reforming unit, wherein adjustable frequency motor includes converter and motor, described converter is connected with motor by cable, wherein said sound wave reforming unit includes sound wave and converts chamber and be positioned at the rotary valve of chamber, described rotary valve and described sound wave convert the gap between chamber less than 0.05mm, described sound wave converts chamber with compressed air inlet and acoustic wave outlet, described rotary valve is connected to the outfan of adjustable frequency motor and is arranged in the runner between described compressed air inlet and described acoustic wave outlet, described rotary valve is provided with multiple cut hole that air-flow cuts into cosine sound wave, described cut hole is that the internally tangent ring-shaped hole surrounded by a plurality of curve is so that described radiation frequency is extended to 80��800Hz, wherein be also associated with the acoustic waveguide tube of hyperbolia at the acoustic wave outlet place of described sound wave conversion chamber, the internal diameter of the arrival end of described acoustic waveguide tube is the internal diameter of 50-60mm and the port of export is 200-240mm.
Preferably, described frequency conversion acoustic wave ash ejector also includes for storing compressed-air actuated air storage chamber, and described air storage chamber connects with described compressed air inlet.
Preferably, described acoustic waveguide tube is the increaser that sectional area increases continuously, and the radiant power of described cosine sound wave is amplified to 155dB through described acoustic waveguide tube.
Preferably, the cast member that described acoustic waveguide tube is formed in one.
Novel according to this, on the one hand 4 chambers in traditional existing soot blower are expanded as 6 vocal holes being arranged on rotary valve, thus the frequency range of soot blower is extended to 80��800Hz by 100 original��600Hz; Simultaneously, problem for reel in existing soot blower Yu chamber inner wall excesssive gap, the rotary valve higher by arranging machining accuracy such that it is able to reduce the gap between rotary valve and chamber inner wall to less than 0.05mm, thus solving the bite phenomenon that traditional acoustic soot blower is serious; Further by setting up the acoustic waveguide tube of hyperbolia in the outlet of sound wave reforming unit so that sound wave is after the acoustic waveguide tube that sectional area increases continuously, and its radiant power can increase to 155dB. As can be seen here, this novel soot blower frequency of sound wave and radiant power are all greatly improved, it is possible to meet the ash disposal job requirements of various Industrial Boiler heat-transfer surface well.
Accompanying drawing explanation
Below in conjunction with in the accompanying drawing description to this novel exemplary embodiment, this novel above-mentioned and other side will become apparent from and is easier to understand, in the accompanying drawings:
Fig. 1 is the sectional view of an embodiment of this novel frequency conversion acoustic wave ash ejector;
Detailed description of the invention
Referring to accompanying drawing, the preferred implementation that this is novel is illustrated. It should be noted that term used herein " on ", D score, "front", "rear", "left", "right" and similar statement for illustrative purposes only, and unrestricted. In various figures, identical element adopts same or like accompanying drawing labelling to represent. For the sake of clarity, the various piece in accompanying drawing is not to scale.
Fig. 1 schematically depict a kind of frequency conversion acoustic wave ash ejector novel according to this. Wherein frequency conversion acoustic wave ash ejector includes adjustable frequency motor 1 and sound wave reforming unit, and wherein motor 1 and sound wave reforming unit are all connected in mounting bracket 3, and described mounting bracket 3 is installed to working surface by such as flange part. Adjustable frequency motor 1 includes converter and motor, and converter is connected with motor by cable, the control signal of converter reception externally input and according to this control signal to motor output speeds order. Motor is connected in mounting bracket 3 by mounting flange, and the output shaft 2 of motor can supportedly be arranged in sound wave reforming unit through mounting bracket 3 and by bearing 4. Sound wave reforming unit includes sound wave and converts chamber and be positioned at the rotary valve 7 of chamber. Rotary valve 7 is preferably flat plate-like, is provided with multiple, for instance being 6 cut holes that air-flow can cut into cosine sound wave, described cut hole is that the internally tangent ring-shaped hole surrounded by a plurality of curve is so that described radiation frequency is extended to 80��800Hz on rotary valve 7. Sound wave converts chamber and is provided with the flat groove adapted with rotary valve 7 so that rotary valve can rotate freely in chamber, and wherein sound wave converts the gap between chamber and rotary valve 7 less than 0.05mm. Sound wave converts chamber with compressed air inlet 5 and the sleeve 6 forming acoustic wave outlet, and wherein compressed air inlet can be connected with storing compressed-air actuated air storage chamber, so that the compression air from air storage chamber flows into sound wave reforming unit. Wherein convert on chamber at sound wave and be provided with the sluice way corresponding with cut hole so that compression air at the flows by action of sluice way to cut hole. The sleeve 6 forming acoustic wave outlet is set at the rear of cut hole, so guarantees that rotary valve is always situated in the runner between described compressed air inlet and described acoustic wave outlet. One end of the sleeve 6 of acoustic wave outlet is provided with adpting flange 8, so that the acoustic wave outlet place of sound wave conversion chamber also can be connected to the acoustic waveguide tube (not shown) of hyperbolia, the internal diameter of the arrival end of this acoustic waveguide tube is the internal diameter of 50-60mm and the port of export is 200-240mm. Being connected to sound wave and convert the cast member that is formed in one of acoustic waveguide tube of chamber, this conduit is the increaser that sectional area increases continuously, it is possible to the radiant power of sound wave produced by sound wave reforming unit is amplified to 155dB.
Below in conjunction with accompanying drawing 1, the high-power frequency conversion acoustic wave ash ejector with above-mentioned structure is described.
During use, it is arranged in air storage chamber compression air after air storage chamber voltage stabilizing and is introduced in compressed air inlet, then lead into sound wave reforming unit. Now, adjustable frequency conversion motor is opened and is made driven by motor rotary valve rotate. The compression air entered in sound wave reforming unit is directed on rotary valve via runner, on rotary valve under the effect of multiple cut holes, in the process rotated, air-flow is cut into intermittent current and formation has the cosine sound wave of certain radiation frequency, and this sound wave is outwards propagated by acoustic waveguide tube via acoustic wave outlet.
When outside need changes the radiation frequency of output sound wave, by the control command of externally input, converter change the rotating speed of motor and then the rotating speed of change rotary valve, thus changing the radiation frequency of sound wave produced by cut hole cutting steam. Cutting steam is carried out, compared with the chamber of the existing soot blower of tradition, it is possible to the frequency range of soot blower is extended to 80��800Hz by 100 original��600Hz owing to the present invention is provided with multiple cut hole.
When outside need exports the sound wave of relatively large radiation power, the acoustic waveguide tube of the hyperbolia that sound wave is connected exit outwards exports. Owing to acoustic waveguide tube is integrated cast member and the increaser increased continuously for sectional area, it is possible to the radiant power of sound wave produced by sound wave reforming unit is amplified to 155dB. By the dust stratification surface in acoustic irradiation that acoustic waveguide tube is exported to such as boiler furnace, it is possible to dust stratification is removed. By changing the rotating speed of motor or optimizing the parameters such as the pass on design rotary valve, the pressure of hole count or air, it is possible to change the sound pressure level of set up sound wave, frequency, to adapt to the requirement of ash disposal.
Unless otherwise defined, the implication that the those skilled in the art that technology used herein is novel with scientific terminology and this are generally understood that is identical. Term used herein is intended merely to and describes concrete enforcement purpose, it is not intended that restriction is originally novel. Terms such as herein presented such as " parts " both can represent single part, it is also possible to represents the combination of multiple part. Herein presented term such as such as " installation ", " setting " etc. both can represent that parts were attached directly to another parts, it is also possible to represents that parts are attached to another parts by middleware. The feature described in one embodiment herein can individually or be applied to another embodiment in combination with further feature, unless this feature is inapplicable or be otherwise noted in this another embodiment.
Basis is novel to be illustrated already by above-mentioned embodiment, but it is to be understood that, above-mentioned embodiment is only intended to citing and descriptive purpose, and is not intended to be limited to originally novel within the scope of described embodiment. It will be appreciated by persons skilled in the art that and can also make more kinds of variants and modifications according to this novel instruction, within these variants and modifications all fall within this novel scope required for protection.
Claims (4)
1. a frequency conversion acoustic wave ash ejector, including adjustable frequency motor and sound wave reforming unit, wherein adjustable frequency motor includes converter and motor, described converter is connected with motor by cable, it is characterized in that described sound wave reforming unit includes sound wave and converts chamber and be positioned at the rotary valve of chamber, described rotary valve and described sound wave convert the gap between chamber less than 0.05mm, described sound wave converts chamber with compressed air inlet and acoustic wave outlet, described rotary valve is connected to the outfan of adjustable frequency motor and is arranged in the runner between described compressed air inlet and described acoustic wave outlet, described rotary valve is provided with multiple cut hole that air-flow cuts into cosine sound wave, described cut hole is that the internally tangent ring-shaped hole surrounded by a plurality of curve is so that radiation frequency is extended to 80��800Hz, wherein be also associated with the acoustic waveguide tube of hyperbolia at the acoustic wave outlet place of described sound wave conversion chamber, the internal diameter of the arrival end of described acoustic waveguide tube is the internal diameter of 50-60mm and the port of export is 200-240mm.
2. frequency conversion acoustic wave ash ejector as claimed in claim 1, it is characterised in that also including for storing compressed-air actuated air storage chamber, described air storage chamber connects with described compressed air inlet.
3. frequency conversion acoustic wave ash ejector as claimed in claim 1, it is characterised in that described acoustic waveguide tube is the increaser that sectional area increases continuously, and the radiant power of described cosine sound wave is amplified to 155dB through described acoustic waveguide tube.
4. frequency conversion acoustic wave ash ejector as claimed in claim 1, it is characterised in that the cast member that described acoustic waveguide tube is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815192.1U CN205279106U (en) | 2015-10-22 | 2015-10-22 | Frequency conversion sound wave soot blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815192.1U CN205279106U (en) | 2015-10-22 | 2015-10-22 | Frequency conversion sound wave soot blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205279106U true CN205279106U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520815192.1U Expired - Fee Related CN205279106U (en) | 2015-10-22 | 2015-10-22 | Frequency conversion sound wave soot blower |
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| CN (1) | CN205279106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026510A (en) * | 2016-07-25 | 2016-10-12 | 北京德融恒通环境科技有限公司 | High-power acoustic vibration generator |
| CN106613578A (en) * | 2017-01-11 | 2017-05-10 | 青海中水数易信息科技有限责任公司 | Compressed air bundled sound wave rain enhancement device |
-
2015
- 2015-10-22 CN CN201520815192.1U patent/CN205279106U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026510A (en) * | 2016-07-25 | 2016-10-12 | 北京德融恒通环境科技有限公司 | High-power acoustic vibration generator |
| CN106026510B (en) * | 2016-07-25 | 2019-07-05 | 北京德融恒通环境科技有限公司 | High-power sound vibration generator |
| CN106613578A (en) * | 2017-01-11 | 2017-05-10 | 青海中水数易信息科技有限责任公司 | Compressed air bundled sound wave rain enhancement device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20161022 |
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| CF01 | Termination of patent right due to non-payment of annual fee |