CN205991500U - A kind of loudspeaker for acoustic wave ash ejector - Google Patents
A kind of loudspeaker for acoustic wave ash ejector Download PDFInfo
- Publication number
- CN205991500U CN205991500U CN201620944319.4U CN201620944319U CN205991500U CN 205991500 U CN205991500 U CN 205991500U CN 201620944319 U CN201620944319 U CN 201620944319U CN 205991500 U CN205991500 U CN 205991500U
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- CN
- China
- Prior art keywords
- small end
- loudspeaker
- horn mouth
- acoustic wave
- ash ejector
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Abstract
This utility model provides one kind so that sound wave had both enabled expected acoustical power and frequency response requirement, turn avoid the mutation of acoustic impedance, sound wave is made to have preferable response in medium and low frequency section, comply fully with acoustic wave ash ejector to the frequency requirement of 50 ~ 300HZ and structure is simple, with low cost, the loudspeaker for acoustic wave ash ejector of easy construction.It includes horn mouth, described horn mouth includes holding greatly and two parts of small end, bell-mouthed small end is made up of horn bulb and loudspeaker inner shell, there is 10mm gap between loudspeaker inner shell and horn bulb, in described gap, peace is filled with the river sand as damping sound insulating material, bell-mouthed small end porch is provided with small end inlet flange disk, and bell-mouthed small end exit is provided with small end outlet(discharge) flange disk；Big end entrance ring flange is installed at bell-mouthed big end entrance.
Description
Technical field
This utility model is related to a kind of loudspeaker, particularly a kind of loudspeaker for acoustic wave ash ejector.
Background technology
In prior art, boiler is widely used in all trades and professions.Boiler in the course of the work, its heater and heat exchange
The dust stratification of device, coking affect the heat transfer efficiency of heating surface, so that exhaust gas temperature is increased, lead to the thermal efficiency of boiler to decline, reason
Show with operating experience by calculating, exhaust gas temperature raises 20 DEG C, and boiler thermal output will decline 1%, equally seriously amasss
Ash, coking can cause the corrosion of boiler heating surface and unexpected blowing out when reaching to a certain degree, cause great economic loss.For a long time
Since, the ash disposal problem of boiler heating surface is always one of problem of particular concern in boiler operatiopn.Traditional slag-blowing equipmemt
It is fragile that generally existing mechanical part, stuck after being heated, or actuator can not action in time the problems such as.For boiler coke
The mechanism of dust stratification, various countries expert just tries to explore, and can affect adhesive generation, prevents or slow down its generation in the hope of developing
Process for deashing.Sonic method has become the removing a kind of the most promising method of loose charred ashes.
The operation principle of acoustic wave ash ejector is：By air after filter cleaning, by sonic generator and in electromagnetism
Under the control of valve, the energy of compressed air is changed into acoustic energy by sonic generator, is modulated into sound wave, outside in the way of sound wave
Transmission, sound wave by acoustic waveguide tube after the regular amplification of loudspeaker with certain frequency, working procedure and cycle incoming container.
But in prior art, also lack one kind so that sound wave had both enabled expected acoustical power and frequency response requirement,
Turn avoid the mutation of acoustic impedance so that sound wave has preferable response in medium and low frequency section, comply fully with acoustic wave ash ejector to 50 ~
The frequency requirement of 300HZ and structure are simple, with low cost, the loudspeaker for acoustic wave ash ejector of easy construction.
Utility model content
The technical problems to be solved in the utility model is to provide one kind so that sound wave had both enabled expected acoustical power and frequency
Rate response requires, and turn avoid the mutation of acoustic impedance so that sound wave has preferable response in medium and low frequency section, complies fully with sound wave and blow
To the frequency requirement of 50 ~ 300HZ and structure is simple for grey device, with low cost, the loudspeaker for acoustic wave ash ejector of easy construction.
For solving above-mentioned technical problem, the technical scheme that this utility model provides is：A kind of loudspeaker for acoustic wave ash ejector
, it includes horn mouth, and described horn mouth includes holding greatly and two parts of small end, and bell-mouthed small end is by horn bulb and loudspeaker
Inner shell forms, and has 10mm gap between loudspeaker inner shell and horn bulb, and in described gap, peace is filled with as damping sound insulation
The river sand of material, bell-mouthed small end porch is provided with small end inlet flange disk, and bell-mouthed small end exit is provided with little
Bring out a mouthful ring flange；Big end entrance ring flange is installed at bell-mouthed big end entrance, bell-mouthed big end and small end are by little
Bring out mouthful ring flange and big end entrance ring flange be attached, described small end inlet flange disk be used for acoustic wave ash ejector only
Return grey valve to connect.
Preferably, the cross section profile on described bell-mouthed length direction is in tractrix shape.
Preferably, the area of the described cross section of bell-mouthed small end part gradually increases along the direction of entrance to outlet
Plus.
Preferably, the diameter phase in diameter at described bell-mouthed big end entrance and bell-mouthed small end exit
With；Described small end outlet(discharge) flange disk and big end entrance ring flange are equivalently-sized.
Preferably, the two-part central axis of described bell-mouthed small end and big end overlaps.
After said structure, this utility model has the advantages that：Compressed gas occur in rotary valve type sonic
It is converted into acoustic energy in the presence of device, is modulated into sound wave, sound wave reaches horn mouth after non-return ash valve, and sound wave initially enters loudspeaker
Small end, this section of loudspeaker length is longer, and cross-sectional area incrementally increases, and it increases, and amplitude is more slow, and acoustic impedance is progressively in the process
Increase, and loudspeaker small end is made up of inner shell and shell, in the middle of it, lay damping sound insulating material, reduce horn vibration to water-cooling wall
Or the impact to environment for the radiation of the destruction of other supporting bodies and noise, its damping clearance layer is 10mm, meet damping and every
The economy that sound requires.After small end, it is horn mouth that sound wave enters into the big end of loudspeaker, and horn mouth adopts tractrix, its sound of room
Impedance can increase sharply, and the medium and low frequency section in 100～500HZ has preferable response, meets acoustic wave ash ejector to sound frequency
50～the 300HZ requiring.
Above-mentioned loudspeaker small end is made up of inner shell and shell, has the space of 10mm between inner shell and shell, and this space is laid
Damping sound insulating material, its damping sound insulating material selects river sand, defening effect and economic performance all relatively good, and convenient construction,
The damping sound insulating layer of 10mm had not both interfered with defening effect, prevented also from loudspeaker preponderance.
All there is stopping of ring flange, the ring flange of porch and acoustic wave ash ejector at the described entrance and exit of loudspeaker small end
Return grey valve to connect, the ring flange in exit and the big end of loudspeaker are that horn mouth connects.
The length of described loudspeaker small end is longer, and the gradient is more slow, being gradually increased of achievable acoustic impedance, prevents the prominent of acoustic impedance
Become, meet the frequency requirement of horn mouth frequency porch.
Above-mentioned bell-mouthed camber line adopts tractrix, and in horn mouth, its acoustic impedance can increase sharply sound wave, meets sound wave
The requirement of soot blower effective frequency.
Above-mentioned loudspeaker pass through two sections of distances of small end and big end so that sound wave had both enabled expected acoustical power and frequency response
Require, turn avoid the mutation of acoustic impedance.Bell-mouthed tractrix design has made sound wave have preferable response in medium and low frequency section,
Comply fully with the frequency requirement to 50 ~ 300HZ for the acoustic wave ash ejector.The material that loudspeaker adopt is 2mm general steel plate, 4mm rustless steel
Steel plate, river sand selected by damping sound insulating material, and economic performance is superior, cost-effective, convenient construction.4th, horn structure is simple, practical
Property is good.
In sum, this utility model provides one kind so that sound wave had both enabled expected acoustical power and frequency response will
Ask, turn avoid the mutation of acoustic impedance so that sound wave has preferable response in medium and low frequency section, comply fully with acoustic wave ash ejector to 50
The frequency requirement of ~ 300HZ and structure are simple, with low cost, the loudspeaker for acoustic wave ash ejector of easy construction.
Brief description
Fig. 1 is entirety sectional view of the present utility model.
Fig. 2 is this utility model bell-mouth structure of air schematic diagram.
As shown in the figure：1st, horn mouth, 2, horn bulb, 3, loudspeaker inner shell, 4, small end inlet flange disk, 5, small end outlet method
Blue disk, 6, big end entrance ring flange, 101, big end entrance, 102, big end wall, 103, bring out greatly mouth.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail.
In conjunction with accompanying drawing 1 and accompanying drawing 2, a kind of loudspeaker for acoustic wave ash ejector, it includes horn mouth 1, described horn mouth 1
Including big end and two parts of small end, the small end of horn mouth 1 is made up of horn bulb 2 and loudspeaker inner shell 3, loudspeaker inner shell 2 and loudspeaker
Have 10mm gap between shell 3, in described gap peace be filled with as damping sound insulating material river sand, horn mouth 1 little
Small end inlet flange disk 4 is installed at end entrance, the small end exit of horn mouth 1 is provided with small end outlet(discharge) flange disk 5；Horn mouth
Big end entrance ring flange 6 is installed at 1 big end entrance 101, the big end of horn mouth 1 and small end pass through small end outlet(discharge) flange disk 5
It is attached with big end entrance ring flange 6, described small end inlet flange disk 4 is used for connecting with the non-return ash valve of acoustic wave ash ejector
Connect.The big end of horn mouth 1 includes big end entrance 101, big end wall 102 and brings out greatly 103 3 parts of mouth.
Preferably, the cross section profile on the described length direction of horn mouth 1 is in tractrix shape.
Preferably, the area of the cross section of small end part of described horn mouth 1 is along entrance to the direction of outlet gradually
Increase.
Preferably, diameter at the big end entrance 101 of described horn mouth 1 and the small end exit of horn mouth 1 is straight
Footpath is identical；Described small end outlet(discharge) flange disk 5 and big end entrance ring flange 6 are equivalently-sized.
Preferably, the two-part central axis of the described small end of horn mouth 1 and big end overlaps.
After said structure, this utility model has the advantages that：Compressed gas occur in rotary valve type sonic
It is converted into acoustic energy in the presence of device, is modulated into sound wave, sound wave reaches horn mouth after non-return ash valve, and sound wave initially enters loudspeaker
Small end, this section of loudspeaker length is longer, and cross-sectional area incrementally increases, and it increases, and amplitude is more slow, and acoustic impedance is progressively in the process
Increase, and loudspeaker small end is made up of inner shell and shell, in the middle of it, lay damping sound insulating material, reduce horn vibration to water-cooling wall
Or the impact to environment for the radiation of the destruction of other supporting bodies and noise, its damping clearance layer is 10mm, meet damping and every
The economy that sound requires.After small end, it is horn mouth that sound wave enters into the big end of loudspeaker, and horn mouth adopts tractrix, its sound of room
Impedance can increase sharply, and the medium and low frequency section in 100～500HZ has preferable response, meets acoustic wave ash ejector to sound frequency
50～the 300HZ requiring.
Above-mentioned loudspeaker small end is made up of inner shell and shell, has the space of 10mm between inner shell and shell, and this space is laid
Damping sound insulating material, its damping sound insulating material selects river sand, defening effect and economic performance all relatively good, and convenient construction,
The damping sound insulating layer of 10mm had not both interfered with defening effect, prevented also from loudspeaker preponderance.
All there is stopping of ring flange, the ring flange of porch and acoustic wave ash ejector at the described entrance and exit of loudspeaker small end
Return grey valve to connect, the ring flange in exit and the big end of loudspeaker are that horn mouth connects.
The length of described loudspeaker small end is longer, and the gradient is more slow, being gradually increased of achievable acoustic impedance, prevents the prominent of acoustic impedance
Become, meet the frequency requirement of horn mouth frequency porch.
Above-mentioned bell-mouthed camber line adopts tractrix, and in horn mouth, its acoustic impedance can increase sharply sound wave, meets sound wave
The requirement of soot blower effective frequency.
Above-mentioned loudspeaker pass through two sections of distances of small end and big end so that sound wave had both enabled expected acoustical power and frequency response
Require, turn avoid the mutation of acoustic impedance.Bell-mouthed tractrix design has made sound wave have preferable response in medium and low frequency section,
Comply fully with the frequency requirement to 50 ~ 300HZ for the acoustic wave ash ejector.The material that loudspeaker adopt is 2mm general steel plate, 4mm rustless steel
Steel plate, river sand selected by damping sound insulating material, and economic performance is superior, cost-effective, convenient construction.4th, horn structure is simple, practical
Property is good.
In sum, this utility model provides one kind so that sound wave had both enabled expected acoustical power and frequency response will
Ask, turn avoid the mutation of acoustic impedance so that sound wave has preferable response in medium and low frequency section, comply fully with acoustic wave ash ejector to 50
The frequency requirement of ~ 300HZ and structure are simple, with low cost, the loudspeaker for acoustic wave ash ejector of easy construction.
Device concrete operating principle of the present utility model is：Compressed gas are through the sound wave generating device of acoustic wave ash ejector
Afterwards, change into acoustic energy, the sound wave of generation by sound wave generating device out, approach non-return ash valve, reach loudspeaker small end porch, sound
Ripple enters into trumpet end, and with being gradually increased of cross-sectional area of small end, its acoustic impedance is also gradually increased, and sound wave is through small end
Afterwards, reach horn mouth 1, now, in horn mouth, the shape of horn mouth 1 adopts tractrix to sound wave, this function curve 100～
The medium and low frequency section of 500HZ has preferable response, and insensitive to high frequency response, and in the process, acoustic impedance increases sharply sound wave,
Reach expected acoustical power and frequency response requirement, realize acoustic impedance match.
Above this utility model and embodiments thereof are described, this description does not have restricted, shown in accompanying drawing
Also it is one of embodiment of the present utility model, actual structure is not limited thereto.If generally speaking this area is general
Logical technical staff is enlightened by it, in the case of creating objective without departing from this utility model, designing and being somebody's turn to do without creative
The similar frame mode of technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (5)
1. a kind of loudspeaker for acoustic wave ash ejector it is characterised in that：It includes horn mouth（1）, described horn mouth（1）Including
Big end and two parts of small end, horn mouth（1）Small end by horn bulb（2）With loudspeaker inner shell（3）Composition, loudspeaker inner shell（3）
And horn bulb（2）Between have 10mm gap, in described gap peace be filled with as damping sound insulating material river sand, horn mouth
（1）Small end porch small end inlet flange disk is installed（4）, horn mouth（1）Small end exit be provided with small end outlet method
Blue disk（5）；Horn mouth（1）Big end entrance（101）Place is provided with big end entrance ring flange（6）, horn mouth（1）Big end and little
Small end outlet(discharge) flange disk is passed through at end（5）With big end entrance ring flange（6）It is attached, described small end inlet flange disk（4）With
It is connected in the non-return ash valve with acoustic wave ash ejector.
2. the loudspeaker for acoustic wave ash ejector according to claim 1 it is characterised in that：Described horn mouth（1）Length
Cross section profile on degree direction is in tractrix shape.
3. the loudspeaker for acoustic wave ash ejector according to claim 1 it is characterised in that：Described horn mouth（1）Little
The area of the cross section of end part is gradually increased along the direction of entrance to outlet.
4. the loudspeaker for acoustic wave ash ejector according to claim 1 it is characterised in that：Described horn mouth（1）Big
End entrance（101）The diameter at place and horn mouth（1）Small end exit diameter identical；Described small end outlet(discharge) flange disk（5）
With big end entrance ring flange（6）Equivalently-sized.
5. the loudspeaker for acoustic wave ash ejector according to claim 1 it is characterised in that：Described horn mouth（1）Little
The two-part central axis in end and big end overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944319.4U CN205991500U (en) | 2016-08-26 | 2016-08-26 | A kind of loudspeaker for acoustic wave ash ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944319.4U CN205991500U (en) | 2016-08-26 | 2016-08-26 | A kind of loudspeaker for acoustic wave ash ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205991500U true CN205991500U (en) | 2017-03-01 |
Family
ID=58107735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620944319.4U Expired - Fee Related CN205991500U (en) | 2016-08-26 | 2016-08-26 | A kind of loudspeaker for acoustic wave ash ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205991500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090954A (en) * | 2016-08-26 | 2016-11-09 | 湖北省端胜实业有限公司 | A kind of loudspeaker for acoustic wave ash ejector |
-
2016
- 2016-08-26 CN CN201620944319.4U patent/CN205991500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090954A (en) * | 2016-08-26 | 2016-11-09 | 湖北省端胜实业有限公司 | A kind of loudspeaker for acoustic wave ash ejector |
| CN106090954B (en) * | 2016-08-26 | 2018-06-15 | 湖北省端胜实业有限公司 | A kind of loudspeaker for acoustic wave ash ejector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170301 Termination date: 20190826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |