CN208901414U - A kind of soot blower with air-flow guiding groove and exchangeable nozzle - Google Patents
A kind of soot blower with air-flow guiding groove and exchangeable nozzle Download PDFInfo
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- CN208901414U CN208901414U CN201821378722.0U CN201821378722U CN208901414U CN 208901414 U CN208901414 U CN 208901414U CN 201821378722 U CN201821378722 U CN 201821378722U CN 208901414 U CN208901414 U CN 208901414U
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- air
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- guiding groove
- flow guiding
- connecting tube
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Abstract
The utility model relates to electric power and steam field, especially a kind of soot blower with air-flow guiding groove and exchangeable nozzle.Existing sootblower nozzle exit gas jet stream rigidity is insufficient, nozzle cannot replace the problems such as influencing soot blowing effect, the utility model provides a kind of soot blower with air-flow guiding groove and exchangeable nozzle, including air shooter and the nozzle for being connected thereto built-in air blowing duct, the axis direction in air blowing duct is consistent with nozzle length direction, air blowing duct inner end open communication air shooter inner cavity, outer end opening forms spout, nozzle is removably connected on the tube wall of air shooter, and several axially extending air-flow guiding grooves are arranged in indent on the inner wall in air blowing duct, air-flow guiding groove is distributed around on the inner wall in air blowing duct and extends internally from spout one end.The utility model can need replacing corresponding nozzle according to different operating conditions；Nozzle, which is equipped with the air-flow guiding groove that bootable sootblowing dielectric high speed projects, enhances soot blowing effect to improve jet stream rigidity.
Description
Technical field
The utility model relates to electric power and steam field, especially a kind of soot blowing with air-flow guiding groove and exchangeable nozzle
Device.
Background technique
Various heating surfaces such as water-cooling wall, superheater, reheater, economizer and air preheater of existing coal-burning boiler etc. exist
Slagging and dust stratification easily occur in use, therefore can all be configured to the soot blower of purging heating surface.Common soot blower includes steaming
Vapour soot blower, compressed air soot-blowing device and acoustic wave ash ejector, first two soot blower using high pressure gas working medium as sootblowing dielectric,
Venturi pantographic nozzle is generally used, so that the initial velocity of steam or air is reached supersonic speed, and nozzle is non-exchange.This
The non-exchange venturi pantographic soot blowing nozzle of class has the following deficiencies: that the general length of (1) sootblower nozzle is shorter, to air-flow
Guiding function it is poor, air-flow cannot be projected in nozzle exit velocity completely along nozzle direction, cause the rigidity of jet stream insufficient,
Influence soot blowing effect；(2) nozzle is fixedly mounted and non-exchange on soot blower, when needing to change sootblowing dielectric type or adjustment
When blowing pressure, original fixed nozzle is unable to satisfy new sootblowing dielectric conveying and requires, and cannot be by replacing nozzle
With new sootblowing dielectric to enhance soot blowing effect, soot blowing effect can be made to have a greatly reduced quality using existing nozzle.
Utility model content
The technical problems to be solved in the utility model and the technical assignment of proposition are that existing sootblower nozzle is overcome to work off one's feeling vent one's spleen
Body jet stream rigidity is insufficient, nozzle can not replace the problem of different sootblowing dielectrics of matching cause soot blowing effect to be affected, this is practical
Novel to provide a kind of soot blower with air-flow guiding groove and exchangeable nozzle, the nozzle of the soot blower uses detachable structure,
Corresponding nozzle can be needed replacing according to different operating conditions；Nozzle is equipped with the air-flow guidance that sootblowing dielectric high speed can be guided to project
Slot enhances soot blowing effect to improve jet stream rigidity.
The utility model solves the technical solution that technical problem uses: a kind of with air-flow guiding groove and exchangeable nozzle is blown
Grey device, including air shooter and the nozzle for being connected thereto built-in air blowing duct, the axis direction and nozzle in the air blowing duct
Length direction is consistent, air blowing duct inner end open communication air shooter inner cavity, and outer end opening forms spout, it is characterized in that described
Nozzle is removably connected on the tube wall of air shooter, and several axially extending gas are arranged in indent on the inner wall in air blowing duct
Guiding groove is flowed, if the dry gas stream guiding groove is distributed around on the inner wall in air blowing duct and extends internally from spout one end.
The present invention realizes operating condition and nozzle Corresponding matching, enhances soot blowing effect, nozzle is logical by installing dismountable nozzle on tube wall
Cross gas hole road shape, aperture variation can become different size nozzle；Indent is added in the air-flow guiding groove of wall surface
It guides sootblowing dielectric to project along air blowing duct axis high speed, improves jet stream rigidity, enhance soot blowing effect.
As further improving and supplementing to above-mentioned technical proposal, the utility model uses following technical measures: described
Sealing is connected pipe on the tube wall of air shooter, and the connecting tube inner end is connected to air shooter inner cavity, connecting tube and spray
Mouth is detachably connected.Connecting tube is added on air shooter and makees transition, as the pedestal that nozzle is detachably installed, in connecting tube
The mounting structure of upper processing connection nozzle is more convenient compared with directly processing on air shooter tube wall, and connecting tube is convenient for batch
Metaplasia produces, and is further also avoided that directly processing generation problem on air shooter causes air shooter to scrap risk, right
It is also more convenient in the air shooter renovation and utilization of existing soot blower.
The connecting tube is arranged on the tube wall of air shooter and is welded and fixed, and connecting tube inner end is located at air shooter
In inner cavity, the tube wall of air shooter is protruded or flushed in connecting tube outer end.Company is welded and fixed in aperture on air shooter tube wall
Take over easy to process, either newly-increased air shooter or old air shooter transformation are all easy to implement, pass through Welder
Skill also ensures the two Butt sealing while being fixedly connected with pipe and air shooter；Connecting tube inner end penetrates in air shooter
It is conveniently welded and fixed in chamber；The tube wall of air shooter is protruded or flushed to connecting tube, can be reduced exposed ruler wherein flushing tube wall also
Very little reduction abrasion, installation are more convenient.
The nozzle and connecting tube are threadedly coupled, and the external screw thread and internal screw thread to match is equipped between nozzle and connecting tube.
Nozzle and connecting tube are connected through a screw thread, screw thread process technology maturation, easy to implement, convenient for disassembly and assembly and have preferable connection sealing
Property.The nozzle twist-on for setting internal screw thread be can be in use on setting externally threaded connecting tube, or set externally threaded nozzle and twist
It connects in the connecting tube for setting internal screw thread.
The external screw thread is set on outer nozzle wall, and internal screw thread is set on connecting tube lumen wall.Nozzle and connecting tube set up separately
External screw thread, internal screw thread are more particularly suitable, and are avoided that nozzle sets internal screw thread to nozzle air blowing duct inner wall overdraught guiding groove
Interference, conducive to the integrality for keeping air-flow guiding groove, to play maximum effect.
The nozzle is built in connecting tube lumen, and the air blowing duct both ends and connecting tube lumen both ends on nozzle flush, spray
Mouth outer wall and connecting tube lumen wall are covered with the external screw thread and internal screw thread of matching along docking length direction.Air blowing duct on nozzle
Match always with both the lumen of connecting tube length, the air-flow guiding groove in air blowing cell walls can play optimum efficiency；Spray
It is covered with the external screw thread and internal screw thread of matching between mouth and connecting tube lumen along docking length direction, nozzle and connecting tube are using respectively
Extension is threadedly coupled, and improves the two docking stability.
The radial section in the air blowing duct is in regular hexagon, and the air-flow guiding groove has six and is divided into hexagon
On six angles.The radial section in air blowing duct is compared in regular hexagon and four sides, pentagon, and the close enough circle of hexagon is conducive to
Jet-stream wind soot blowing is also easy to skid if number of edges amount is more again when processing difficulties, dismounting, and hexagon can also be with existing interior six
The matching of angle spanner, facilitates nozzle to dismount；Air-flow guiding groove is set on six angles of regular hexagon, helps to guide sootblowing dielectric
Air-flow is uniformly projected along the axis high speed in air-flow duct, enhances soot blowing effect.
Air blowing duct internal diameter is expanding again along axial first undergauge inwardly from spout end, and undergauge section and extension diameter section distinguish shape
At outer taper hole and internal taper hole, the junction of outer taper hole and internal taper hole is air blowing duct internal diameter minimum position, the internal diameter minimum bit
The air blowing duct set is connected with two sides taper hole arc transition.Air blowing duct is made of two sections of taper hole connections, the docking of two sections of taper holes
Place is the most thin position of entire air blowing duct internal diameter, is first moved ahead by internal taper hole guidance compression when sootblowing dielectric passes through air blowing duct,
It guides expansion to spray by outer taper hole again, cooperates air-flow guiding groove collective effect, improve the effluxvelocity of ejection, enhancing soot blowing effect
Fruit.
The outer cone hole length is greater than inner cone hole length, and outer cone hole gradient is less than internal taper hole gradient.This contracting in air blowing duct
Putting shape can make jet-impingement resistance become smaller, and reduce the kinetic energy rejection of jet stream, and sootblowing dielectric is made to accelerate to spray with supersonic speed.
The utility model provides a kind of soot blower with air-flow guiding groove and exchangeable nozzle, and the nozzle of the soot blower is adopted
With detachable structure, corresponding nozzle can be needed replacing according to different operating conditions；Nozzle, which is equipped with, can guide sootblowing dielectric high speed
The air-flow guiding groove of injection enhances soot blowing effect to improve jet stream rigidity.
Detailed description of the invention
Fig. 1: the stereoscopic schematic diagram of soot blower of the present invention.
Fig. 2: Fig. 1 mentioned nozzle area enlarged drawing.
Fig. 3: the front view of soot blower of the present invention.
Fig. 4: Fig. 3 sectional view along A-A.
Fig. 5: Fig. 3 top view.
Fig. 6: Fig. 5 B-B direction cross-sectional view.
In figure: 1. air shooters, 2. nozzles, 3. air blowing ducts, 4. spouts, 5. air-flow guiding grooves, 6. connecting tubes, outside 7.
Taper hole, 8. internal taper holes.
Specific embodiment
Explanation and specific embodiment are described further the utility model with reference to the accompanying drawing.
As shown in figs. 1 to 6, a kind of soot blower with air-flow guiding groove and exchangeable nozzle, including air shooter 1 and company
The nozzle 2 in built-in air blowing duct 3 thereon is connect, the axis direction in the air blowing duct 3 is consistent with 2 length direction of nozzle, gas hole
3 inner end open communication air shooter of road, 1 inner cavity, outer end opening form spout 4, and it is defeated that the nozzle 2 is removably connected to gas
On the tube wall for sending pipe 1, and several axially extending air-flow guiding grooves 5 are arranged in indent on the inner wall in air blowing duct 3, if the dry gas
Stream guiding groove 5 is distributed around on the inner wall in air blowing duct 3 and extends internally from 4 one end of spout.Installation can on tube wall for this
The nozzle of disassembly, nozzle can become the nozzle of different size by the variation of gas hole road shape, aperture, to different operating conditions
Soot blowing effect can be remarkably reinforced in the nozzle of dismounting and change Corresponding matching；The air-flow guiding groove guiding that indent is added in wall surface is blown
Grey medium is projected along air blowing duct axis high speed, is improved jet stream rigidity, is enhanced soot blowing effect.
Sealing is connected pipe 6 on the tube wall of the air shooter 1, and 6 inner end of connecting tube is connected to air shooter 1
Inner cavity, connecting tube 6 and nozzle 2 are detachably connected.Connecting tube becomes bottom as the transition between air shooter tube wall and nozzle
Seat disassembly installation nozzle, the mounting structure of processing connection nozzle on air shooter tube wall compared with directly processing more in connecting tube
It is convenient, and connecting tube is convenient for mass production, is further also avoided that directly processing generation problem on air shooter makes
Risk is scrapped at air shooter, the air shooter renovation and utilization of existing soot blower is also more convenient.
The connecting tube 6 is arranged on the tube wall of air shooter 1 and is welded and fixed, and it is defeated that 6 inner end of connecting tube is located at gas
It send in 1 inner cavity of pipe, the tube wall of air shooter 1 is protruded or flushed in 6 outer end of connecting tube.Aperture is welded on air shooter tube wall
It is fixedly connected with that pipe is easy to process, either newly-increased air shooter or old air shooter transformation are all easy to implement, pass through
Welding procedure also ensures the two Butt sealing while being fixedly connected with pipe and air shooter；It is defeated that connecting tube inner end penetrates gas
It send and facilitates welding processing in tube cavity；Connecting tube can be protrusion or flush the tube wall of air shooter, wherein flushing tube wall also
It can be reduced exposed size reduction abrasion, installation is more convenient, and tube wall is protruded in connecting tube outer end in the present embodiment.
The nozzle 2 and connecting tube 6 are threadedly coupled, and the external screw thread and interior spiral shell to match is equipped between nozzle 2 and connecting tube 6
Line, preferably external screw thread is set on 2 outer wall of nozzle in the present embodiment, and internal screw thread is set on 6 lumen wall of connecting tube.Nozzle and connection
It is more particularly suitable that pipe sets up external screw thread, internal screw thread separately, and is avoided that nozzle sets internal screw thread and draws to nozzle air blowing duct inner wall overdraught
The interference of guide groove, conducive to the integrality for keeping air-flow guiding groove, to play maximum effect.
The nozzle 2 is built in 6 lumen of connecting tube, and 3 both ends of air blowing duct and 6 lumen both ends of connecting tube on nozzle 2 are neat
Flat, external screw thread and internal screw thread that length direction is covered with matching are docked in 2 outer wall of nozzle and 6 lumen wall of connecting tube edge.On nozzle
Both lumens of air blowing duct and connecting tube length matches always, and the air-flow guiding groove in air blowing cell walls can play most preferably
Effect；It is covered with the external screw thread and internal screw thread of matching, nozzle and connecting tube between nozzle and connecting tube lumen along docking length direction
It is threadedly coupled using respective extension, improves the two docking stability.
The radial section in the air blowing duct 3 is in regular hexagon, and the air-flow guiding groove 5 has six and is divided into positive six side
On six angles of shape.The radial section in air blowing duct is in regular hexagon, can match with existing allen wrench, facilitate nozzle
Dismounting；Air-flow guiding groove is set on six angles of regular hexagon, helps to guide the air-flow of sootblowing dielectric uniformly along airflow hole
The axis high speed in road projects, and enhances soot blowing effect.
3 internal diameter of air blowing duct is expanding again along axial first undergauge inwardly from 4 end of spout, and undergauge section and extension diameter section difference
The junction of the outer taper hole 7 of formation and internal taper hole 8, outer taper hole 7 and internal taper hole 8 is 3 internal diameter minimum position of air blowing duct, the internal diameter
The air blowing duct 3 of minimum position is connected with two sides taper hole arc transition.Air blowing duct is made of two sections of taper hole connections, two sections of taper holes
Docking at for the most thin position of entire air blowing duct internal diameter, sootblowing dielectric is first guided by internal taper hole when passing through air blowing duct to be compressed
It moves ahead, then guides expansion to spray by outer taper hole, cooperate air-flow guiding groove collective effect, improve the effluxvelocity of ejection, enhancing is blown
Grey effect.
7 length of outer taper hole is greater than 8 length of internal taper hole, and outer 7 gradient α of taper hole as shown in Figure 4 is less than 8 gradient β of internal taper hole.
This scaling shape in air blowing duct can make jet-impingement resistance become smaller, and reduce the kinetic energy rejection of jet stream, accelerate sootblowing dielectric
It is sprayed with supersonic speed.
Claims (9)
1. a kind of with air-flow guiding groove and the soot blower of exchangeable nozzle, including air shooter (1) and blow built in being connected thereto
The axis direction of the nozzle (2) in stomata road (3), the air blowing duct (3) is consistent with nozzle (2) length direction, air blowing duct (3)
Inner end open communication air shooter (1) inner cavity, outer end opening forms spout (4), it is characterized in that the nozzle (2) detachably connects
It is connected on the tube wall of air shooter (1), and several axially extending air-flow guidance are arranged in indent on the inner wall of air blowing duct (3)
Slot (5), if the dry gas stream guiding groove (5) is distributed around on the inner wall of air blowing duct (3) and inside from spout (4) one end
Extend.
2. the soot blower according to claim 1 with air-flow guiding groove and exchangeable nozzle, it is characterized in that the gas is defeated
Sealing on the tube wall of pipe (1) is sent to be connected pipe (6), connecting tube (6) inner end is connected to air shooter (1) inner cavity, connection
Pipe (6) and nozzle (2) are detachably connected.
3. the soot blower according to claim 2 with air-flow guiding groove and exchangeable nozzle, it is characterized in that the connecting tube
(6) it is arranged on the tube wall of air shooter (1) and is welded and fixed, connecting tube (6) inner end is located at air shooter (1) inner cavity
In, the tube wall of air shooter (1) is protruded or flushed in connecting tube (6) outer end.
4. the soot blower according to claim 2 with air-flow guiding groove and exchangeable nozzle, it is characterized in that the nozzle (2)
It is threadedly coupled with connecting tube (6), the external screw thread and internal screw thread to match is equipped between nozzle (2) and connecting tube (6).
5. the soot blower according to claim 4 with air-flow guiding groove and exchangeable nozzle, it is characterized in that the external screw thread
On nozzle (2) outer wall, internal screw thread is set on connecting tube (6) lumen wall.
6. the soot blower according to claim 5 with air-flow guiding groove and exchangeable nozzle, it is characterized in that the nozzle (2)
It is built in connecting tube (6) lumen, air blowing duct (3) both ends and connecting tube (6) lumen both ends on nozzle (2) flush, nozzle (2)
Outer wall and connecting tube (6) lumen wall are covered with the external screw thread and internal screw thread of matching along docking length direction.
7. the soot blower according to claim 5 with air-flow guiding groove and exchangeable nozzle, it is characterized in that the gas hole
The radial section in road (3) is in regular hexagon, and the air-flow guiding groove (5) has six and is divided on six angles of regular hexagon.
8. the soot blower according to claim 1 with air-flow guiding groove and exchangeable nozzle, it is characterized in that the gas hole
Road (3) internal diameter is expanding again along axial first undergauge inwardly from spout (4) end, and undergauge section and extension diameter section are respectively formed outer taper hole (7)
With internal taper hole (8), the junction of outer taper hole (7) and internal taper hole (8) is air blowing duct (3) internal diameter minimum position, and the internal diameter is most
The air blowing duct (3) of small position is connected with two sides taper hole arc transition.
9. the soot blower according to claim 8 with air-flow guiding groove and exchangeable nozzle, it is characterized in that the outer taper hole
(7) length is greater than internal taper hole (8) length, and outer taper hole (7) gradient is less than internal taper hole (8) gradient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821378722.0U CN208901414U (en) | 2018-08-24 | 2018-08-24 | A kind of soot blower with air-flow guiding groove and exchangeable nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821378722.0U CN208901414U (en) | 2018-08-24 | 2018-08-24 | A kind of soot blower with air-flow guiding groove and exchangeable nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208901414U true CN208901414U (en) | 2019-05-24 |
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ID=66570288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821378722.0U Expired - Fee Related CN208901414U (en) | 2018-08-24 | 2018-08-24 | A kind of soot blower with air-flow guiding groove and exchangeable nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208901414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028111A (en) * | 2018-08-24 | 2018-12-18 | 浙江浙能温州发电有限公司 | A kind of soot blower with air-flow guiding groove and exchangeable nozzle |
| CN111701736A (en) * | 2020-05-19 | 2020-09-25 | 江苏大学 | Spiral diffusion nozzle |
-
2018
- 2018-08-24 CN CN201821378722.0U patent/CN208901414U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028111A (en) * | 2018-08-24 | 2018-12-18 | 浙江浙能温州发电有限公司 | A kind of soot blower with air-flow guiding groove and exchangeable nozzle |
| CN111701736A (en) * | 2020-05-19 | 2020-09-25 | 江苏大学 | Spiral diffusion nozzle |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 Termination date: 20210824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |