CN206572504U - Coal nozzle - Google Patents
Coal nozzle Download PDFInfo
- Publication number
- CN206572504U CN206572504U CN201720241100.2U CN201720241100U CN206572504U CN 206572504 U CN206572504 U CN 206572504U CN 201720241100 U CN201720241100 U CN 201720241100U CN 206572504 U CN206572504 U CN 206572504U
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- CN
- China
- Prior art keywords
- housing
- hybrid chamber
- spreader
- powder
- inlet pipe
- Prior art date
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Abstract
Have the utility model discloses a kind of coal nozzle, including housing and the powder inlet pipe in housing, between powder inlet pipe and housing on admission space, powder inlet pipe and offer powder entering hole.At least one first air admission hole provided with conducting admission space and powder entering hole on powder inlet pipe, is provided with the first hybrid chamber turned on powder entering hole on housing.Spreader is installed, spreader is located in the first hybrid chamber and on the extension line of the axis in powder entering hole, an at least meal outlet is offered on housing, meal outlet is looped around around spreader on housing.Spreader can improve the thickness of the coal nozzle of coal dust impact position on the position relative with powder inlet pipe, improve the service life of coal nozzle.Spreader is arranged to the low shape in middle high side, and coal dust impact can be made scattered, slow down the rate of wear of spreader, service life is improved, can also further be uniformly distributed the powder outlet quantity of coal dust.
Description
Technical field
The present invention relates to technical field of burner, more particularly, to a kind of coal nozzle.
Background technology
Coal burner refers to allow coal dust fully to burn in a short time, the equipment for producing high temperature eddy current.Coal dust firing
There is the coal nozzle for spraying coal dust mixed combustible gas body on device.Existing coal nozzle provided with coal supply powder export powder inlet pipe with
The air inlet pipe that water supply steam passes through, coal dust and vapor carry out being mixed to form in the hybrid chamber in coal nozzle coal dust mixes can
Combustion gas body.Because coal dust is graininess solid material, when coal dust is directly impacted on the inwall of coal nozzle, in the axle of powder inlet pipe
The inwall of coal nozzle on line direction is easily breakdown, and the service life of coal nozzle is low, wears no resistance.It is therefore desirable to give
To improve.
The content of the invention
The deficiency existed for above-mentioned prior art, it is an object of the invention to provide a kind of coal nozzle, it, which has, uses
Long lifespan, the characteristics of wearability is good.
To achieve these goals, the technical solution adopted in the present invention is：A kind of coal nozzle, including housing and installation
Powder inlet pipe in housing, has on admission space, the powder inlet pipe between the powder inlet pipe and the housing and offers into powder
Hole, provided with least one first air admission hole for turning on the admission space and the powder entering hole on the powder inlet pipe, in the shell
Body, which is provided with the first hybrid chamber turned on the powder entering hole, the housing, is provided with spreader, and the spreader is located at institute
State in the first hybrid chamber and on the extension line of the axis in the powder entering hole, at least one is offered on the housing and goes out powder
Mouthful, the meal outlet is looped around around the spreader.
Further, the spreader includes installing installation portion on the housing and the shunting located at installation portion end
Portion, the cross-sectional area self installation portion of the distributary division is gradually reduced to the end direction of distributary division, and the distributary division is described in
Protrude in powder entering hole direction.
Further, the surface of the distributary division is one kind in taper surface or sphere curved surface.
Further, the spreader is made up of high-abrasive material.
Further, the powder inlet pipe includes sealing, and the sealing pushes against sealing on the housing, and described first
Hybrid chamber is by the space closed between the housing and the sealing.
Further, the powder inlet pipe also includes connecting portion and main part, and the sealing is located at the coupling part
The two ends of the main part, have the second hybrid chamber in the main part, and the powder entering hole is located on the connecting portion and with the
Two hybrid chambers are turned on, and offer material hole on the sealing, and the material hole is by first hybrid chamber and the second hybrid chamber
Conducting, first air admission hole is located at the intersection of the main part and the connecting portion.
Further, the main part is provided with least one second air admission hole, and second air admission hole turns on the air inlet
Space and second hybrid chamber.
Further, the main part is provided with grooving, and the grooving is vertical with the axis of second hybrid chamber and leads
Logical, second air admission hole is turned on the grooving at least described in one.
Further, the volume of second hybrid chamber is less than the volume of first hybrid chamber.
Further, the housing has tapered bottom wall, and the spreader is located on the axis of the bottom wall, described
Meal outlet be located at the bottom wall on and the meal outlet axis perpendicular to the bottom wall.
After said structure, the invention has the advantages that compared with the prior art,：Spreader is located at and powder inlet pipe
On relative position, the thickness of the coal nozzle of coal dust impact position can be improved, is increased the service life.Meal outlet is located at and divided
The peripheral position of flow cone, can be uniformly distributed the powder outlet quantity of coal dust so that combustion even.It is low that spreader is arranged to middle high side
Shape, coal dust impact can be made scattered, slow down the rate of wear of spreader, the service life of coal nozzle is improved, can also
Further it is uniformly distributed the powder outlet quantity of coal dust.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples：
Fig. 1 is the cross-sectional view of the coal nozzle of the present invention；
Fig. 2 is the overlooking the structure diagram of the coal nozzle of the present invention；
Fig. 3 is the structural representation of the spreader of the present invention.
In figure：Powder inlet pipe 10；Powder entering hole 11；Connecting portion 12；Main part 13；Second air admission hole 131；Grooving 132；Sealing
14；Material hole 141；First air admission hole 15；Second wear-resistant sleeve 16；3rd wear-resistant sleeve 1717；Housing 20；Meal outlet 21；4th is resistance to
Grinding set 22；Bottom wall 23；Admission space 30；Second hybrid chamber 40；First wear-resistant sleeve 41；First hybrid chamber 50；Spreader 60；Install
Portion 61；Distributary division 62.
Embodiment
As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
Embodiment, as shown in Fig. 1 and Fig. 3：A kind of coal nozzle, including housing 20 and the powder inlet pipe in housing 20
10, there is admission space 30 between the powder inlet pipe 10 and the housing 20.I.e. powder inlet pipe 10 is located in housing 20, powder inlet pipe 10
External diameter be less than housing 20 internal diameter.Powder entering hole 11 is offered on the powder inlet pipe 10, powder entering hole 11 is located at the axle of powder inlet pipe 10
Line direction.Provided with least one first air admission hole for turning on the admission space 30 and the powder entering hole 11 on the powder inlet pipe 10
15, the first hybrid chamber 50 turned on the powder entering hole 11 is provided with the housing 20.Coal dust is inputted in powder entering hole 11,
Vapor or other combustion-supporting gases are inputted in admission space 30, both are mixed in the first hybrid chamber 50.
Spreader 60 is installed, the spreader 60 is located in first hybrid chamber 50 and in institute on the housing 20
On the extension line for the axis for stating powder entering hole 11.An at least meal outlet 21, the ring of meal outlet 21 are offered on the housing 20
It is wound on around the spreader 60.Coal dust, which impacts on the spreader 60 after being inputted along powder inlet pipe 10 and is diffused in first, to be mixed
Close in chamber 50, vapor or other combustion-supporting gases are sufficiently mixed with coal dust in the first hybrid chamber 50.Coal dust is mixed with to steam with water
The coal dust mixed combustible gas body of gas or other combustion-supporting gases sprays the outside of coal nozzle from meal outlet 21 and burnt.Coal dust
Directly impact is on spreader 60, it is to avoid coal nozzle is breakdown, meanwhile, spreader 60 is adjustable and changes, and effectively prolongs
The service life of long coal nozzle.
As shown in Figure 3：The spreader 60 includes the installation portion 61 being arranged on the housing 20 and located at installation portion 61
The distributary division 62 of end, the cross-sectional area self installation portion 61 of the distributary division 62 is gradually reduced to the end direction of distributary division 62,
The distributary division 62 protrudes towards the direction of powder entering hole 11.I.e. spreader 60 is installed on the housing 20, and its end forms centre
Protrusion, periphery gradually inclined expansion until intersect with the installation portion 61.For example, the surface of the distributary division 62 be taper surface or
One kind in sphere curved surface.Further, the spreader 60 is made up of high-abrasive material, and such as spreader 60 is by G20 high-abrasive materials
It is made.
The end face of spreader 60 is set to the tip of protrusion, coal dust is impacted on distributary division 62, can be along distributary division 62
Surface reflexes to housing 20, can reduce impulsive force of the coal dust to housing 20, reduces direct impact of the coal dust to housing 20, extension
The service life of housing 20.
As shown in Fig. 1 and Fig. 2：The powder inlet pipe 10 includes sealing 14, connecting portion 12 and main part 13, the sealing
14 are divided into the two ends of the main part 13 with the connecting portion 12, and sealing 14 is located at the end of powder inlet pipe 10 in Flange-shaped Parts,
The external diameter of the sealing 14 is more than the external diameter of the main part 13.The delivery pipe of coal dust is connected on sealing 14, described close
Envelope portion 14 pushes against and is sealed on the housing 20, and admission space 30 is located at what is surrounded between main part 13 and shell and sealing 14
In space.First hybrid chamber 50 is by the space closed between the housing 20 and the sealing 14.
There is the second hybrid chamber 40, the volume of second hybrid chamber 40 is less than the described first mixing in the main part 13
The volume of chamber 50, the powder entering hole 11 is located on the connecting portion 12 and turned on the second hybrid chamber 40.In the second hybrid chamber 40
First wear-resistant sleeve 41 is inside installed, the second coaxial wear-resistant sleeve 16, the first wear-resistant sleeve 41 and second are installed on powder inlet pipe 10
Wear-resistant sleeve 16 is conllinear, and coal dust is input to the second hybrid chamber 40 with vapor or other combustion-supporting gases and tentatively mixed, coal dust punching
Hit after the second wear-resistant sleeve 16 and enter the second hybrid chamber 40 so that coal dust is impacted on the first wear-resistant sleeve 41 with vapor.First is resistance to
The wear-resistant sleeve 16 of grinding set 41 and second can improve the wearability of powder inlet pipe 10, while the first wear-resistant sleeve 41 and the second wear-resistant sleeve 16 can be replaced
Change, it is to avoid damage powder inlet pipe 10.
Material hole 141 is offered on the sealing 14, material hole 141 is conllinear with the powder entering hole 11.In the sealing
3rd wear-resistant sleeve 17 is installed, material hole 141 is on the 3rd wear-resistant sleeve 17, and the internal diameter of material hole 141 is less than second in portion 14
The internal diameter of hybrid chamber 40.The material hole 141 turns on first hybrid chamber 50 with the second hybrid chamber 40, at least described in one
One air admission hole 15 is located at the intersection of the main part 13 and the connecting portion 12.The main part 13 and the connecting portion 12
Intersection is set to taper surface, and the first air admission hole 15, which is vertical on taper surface and tilted with the axis of powder entering hole 11, to intersect.First
Wear-resistant sleeve 41, the second wear-resistant sleeve 16 and the 3rd wear-resistant sleeve 17 can be made up of high-abrasive material, be such as made of G20 materials.
First air admission hole 15 is at the import of powder inlet pipe 10, it is preferred that the axis of the first air admission hole 15 and powder entering hole 11
Tilt and intersect, can just be mixed when coal dust enters the second hybrid chamber 40 with vapor or combustion-supporting gas, improve mixing
The uniformity.
As shown in Figure 1：The main part 13 is provided with least one second air admission hole 131, and the second air admission hole 131 enters with first
Stomata 15 is divided into the two ends of main part 13, and second air admission hole 131 turns on the admission space 30 and mixed with described second
Chamber 40.Secondary mixing is carried out in the second hybrid chamber 40 by the second air admission hole 131, further raising coal dust and vapor or helped
The degree of mixing of combustion gas body.Grooving 132, the axle of the grooving 132 and second hybrid chamber 40 are provided with the main part 13
Line is vertical and turns on, and second air admission hole 131 is turned on the grooving 132 at least described in one.The hybrid chamber 40 of grooving 132 and second hangs down
It is straight intersecting, can be vertical with the outbound course of coal dust, diffusivity is good, and coal dust can be further discrete, is well mixed.
The housing 20 has tapered bottom wall 23, and the spreader 60 is located on the axis of the bottom wall 23, described
Meal outlet 21 be located at the bottom wall 23 on and the meal outlet 21 axis perpendicular to the bottom wall 23.It is provided with meal outlet 21
4th wear-resistant sleeve 22, the 4th wear-resistant sleeve 22 can be made up of high-abrasive material, be such as made of G20 materials.Bottom wall 23, which is set to taper, to be made
It can be exported after the impact of coal dust mixed combustible gas body is obtained on spreader 60 from meal outlet 21, even structure, output is stable.
Coal nozzle is widely used at present, and other structures and principle are same as the prior art, repeat no more here.
Claims (10)
1. a kind of coal nozzle, including housing and the powder inlet pipe in housing, have between the powder inlet pipe and the housing
Have and offer powder entering hole on admission space, the powder inlet pipe, on the powder inlet pipe provided with turn on the admission space with it is described
At least one first air admission hole of powder entering hole, on the housing provided with the first hybrid chamber turned on the powder entering hole, its feature
It is：Spreader is installed, the spreader is located in first hybrid chamber and in the powder entering hole on the housing
On the extension line of axis, an at least meal outlet is offered on the housing, and the meal outlet is looped around the week of the spreader
Enclose.
2. coal nozzle according to claim 1, it is characterised in that：The spreader includes installing on the housing
Installation portion and the distributary division located at installation portion end, end direction from the cross-sectional area self installation portion of the distributary division to distributary division
It is gradually reduced, the distributary division protrudes towards the powder entering hole direction.
3. coal nozzle according to claim 2, it is characterised in that：The surface of the distributary division is taper surface or spherical song
One kind in face.
4. coal nozzle according to claim 1 or 2, it is characterised in that：The spreader is made up of high-abrasive material.
5. coal nozzle according to claim 1 or 2, it is characterised in that：The powder inlet pipe includes sealing, the sealing
Portion pushes against sealing on the housing, and first hybrid chamber is by the space closed between the housing and the sealing.
6. coal nozzle according to claim 5, it is characterised in that：The powder inlet pipe also includes connecting portion and main part,
The sealing, which is located at the coupling part in the two ends of the main part, the main part, has the second hybrid chamber, described
Powder entering hole is located on the connecting portion and turned on the second hybrid chamber, and material hole, the material hole are offered on the sealing
First hybrid chamber and the second hybrid chamber are turned on, first air admission hole is located at the phase of the main part and the connecting portion
At friendship.
7. coal nozzle according to claim 6, it is characterised in that：The main part is provided with least one second air inlet
Hole, second air admission hole turns on the admission space and second hybrid chamber.
8. coal nozzle according to claim 7, it is characterised in that：The main part be provided with grooving, the grooving with
The axis of second hybrid chamber is vertical and turns on, and second air admission hole is turned on the grooving at least described in one.
9. coal nozzle according to claim 7, it is characterised in that：The volume of second hybrid chamber is less than described first
The volume of hybrid chamber.
10. the coal nozzle according to claim 1,2 or 3, it is characterised in that：The housing has tapered bottom wall,
The spreader be located at the bottom wall axis on, the meal outlet be located at the bottom wall on and the meal outlet axis it is vertical
In the bottom wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241100.2U CN206572504U (en) | 2017-03-13 | 2017-03-13 | Coal nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241100.2U CN206572504U (en) | 2017-03-13 | 2017-03-13 | Coal nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206572504U true CN206572504U (en) | 2017-10-20 |
Family
ID=60054171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720241100.2U Expired - Fee Related CN206572504U (en) | 2017-03-13 | 2017-03-13 | Coal nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206572504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813240A (en) * | 2017-03-13 | 2017-06-09 | 宁波丰基特种阀门有限公司 | Coal nozzle |
-
2017
- 2017-03-13 CN CN201720241100.2U patent/CN206572504U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813240A (en) * | 2017-03-13 | 2017-06-09 | 宁波丰基特种阀门有限公司 | Coal nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200619 Address after: No. 191, Changyang Road, Jiangbei District, Ningbo City, Zhejiang Province Patentee after: NINGBO TIANJILONG INTELLIGENT CONTROL TECHNOLOGY Co.,Ltd. Address before: Jiangbei District 315033 Zhejiang city of Ningbo province (hongtan) No. 158 Changxin Road, building 7, 105 Patentee before: NINGBO FENGJI SPECIAL VALVE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |