CN206755154U - A kind of CFBB - Google Patents
A kind of CFBB Download PDFInfo
- Publication number
- CN206755154U CN206755154U CN201720637777.8U CN201720637777U CN206755154U CN 206755154 U CN206755154 U CN 206755154U CN 201720637777 U CN201720637777 U CN 201720637777U CN 206755154 U CN206755154 U CN 206755154U
- Authority
- CN
- China
- Prior art keywords
- internal face
- water cooled
- wall
- furnace wall
- cooled furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of CFBB, the burner hearth formed is surrounded including water cooled furnace wall and by water cooled furnace wall, water cooled furnace wall internal face positioned at burner hearth bottom includes the taper internal face from top to bottom gradually protruded to burner hearth center, along the taper internal face lower edge vertical shape internal face that gradually downside tilts the enlarging shape internal face of extension and extended vertically downwards along enlarging shape internal face lower edge to outside burner hearth, wall with refractory lining, refracto is connected with the enlarging shape internal face and vertical shape internal face, the upper end inner cavity surface of the wall with refractory lining, refracto is identical with the gradient of homonymy taper internal face and concordant setting；Annular is connected with the gear ash eaves of one week protrusion on the water cooled furnace wall internal face on the upside of taper internal face, and the Internal periphery size of the grey eaves of gear is less than the overall size of taper internal face lower edge.The boiler structure is simple, easily fabricated, can increase the bonding strength of wall with refractory lining, refracto and water cooled furnace wall and can reduce wall with refractory lining, refracto and water cooled furnace wall friction damage speed.
Description
Technical field
It the utility model is related to a kind of CFBB.
Background technology
For CFBB at present in terms of chemical industry and power plant using widely, CFBB includes water cooling
Furnace wall and burner hearth, the bottom internal face of burner hearth are provided with certain thickness wall with refractory lining, refracto, and the thickness of the wall with refractory lining, refracto gradually becomes downwards
Thickness, so as to which the bottom thorax chamber of burner hearth is enclosed in the taper thorax chamber that upper end open is big, lower ending opening is small, the bottom of taper thorax chamber is set
Once air inlet；The wall with refractory lining, refracto is made up of a kind of conventional castable refractory, mainly reduces the suction of capped water cooled furnace wall
Heat, so as to when ignition of the boiler or underload work, flame be stablized, avoid stove chamber fire-extinguishing and reduction water cooled furnace wall is too fast
The effect that abrasion and overheat are burnt out；Therefore in burning, fire coal is located in taper thorax chamber, and air is blown into from an air inlet,
And a number of coal-burning particle is blown to certain altitude, so as to fully be burnt in whole burner hearth and whole water cooled furnace wall is entered
Row fully heating, but acceleration sedimentation can occur immediately after coal-burning particle rises to certain altitude, and particle in infall process
If owner is along burner hearth sidewall face rapid decrease, the first water cooling stove with above wall with refractory lining, refracto of particulate matter when dropping to burner hearth bottom
Wall collision friction, afterwards again with wall with refractory lining, refracto top edge collision friction, twice collision friction can cause respectively above the wall with refractory lining, refracto
The water cooled furnace wall friction in region is thinning, leak risk then occurs, secondly, also resulting in wall with refractory lining, refracto, edge gradually occurs from it
Collision loosens, and then causes wall with refractory lining, refracto from top to bottom to peel off, and in order to avoid production development accident, it is therefore desirable to periodically stop
Machine then reduces production efficiency so as to which water cooled furnace wall and wall with refractory lining, refracto are inspected periodically and repaired.
Utility model content
The technical problems to be solved in the utility model be to provide it is a kind of simple in construction, it is easily fabricated and safeguard, can increase and defend
Band and the bonding strength of water cooled furnace wall are fired, secondly can reduce wall with refractory lining, refracto and the recirculating fluidized bed pot of water cooled furnace wall friction damage speed
Stove.
In order to solve the above technical problems, the utility model includes water cooled furnace wall and surrounds the burner hearth formed by water cooled furnace wall,
It is structurally characterized in that：Water cooled furnace wall internal face positioned at burner hearth bottom includes the cone from top to bottom gradually protruded to burner hearth center
Shape internal face, along taper internal face lower edge, gradually the downside to outside burner hearth tilts the enlarging shape internal face of extension and along enlarging shape
It is connected with and defends on the vertical shape internal face that wall lower edge extends downwards vertically, the enlarging shape internal face and vertical shape internal face
Fire band, the upper end inner cavity surface of the wall with refractory lining, refracto is identical with the gradient of homonymy taper internal face and concordant setting；In taper
Annular is connected with the gear ash eaves of one week protrusion on water cooled furnace wall internal face on the upside of wall, and the Internal periphery size of the grey eaves of gear is small
In the overall size of taper internal face lower edge.
After said structure, because the internal face of water cooled furnace wall bottom includes taper internal face, enlarging shape internal face
With vertical shape internal face, therefore, wall with refractory lining, refracto can be laid on enlarging shape internal face and vertical shape internal face, while ensure wall with refractory lining, refracto
Upper end inner cavity surface is identical with the gradient of homonymy taper internal face and concordant setting, therefore, the wall with refractory lining, refracto and water cooled furnace wall
Attachment structure can increase the thickness and shock resistance structure intensity of wall with refractory lining, refracto top edge, while also increase wall with refractory lining, refracto top edge
With the bonding strength of water cooled furnace wall；Secondly, and due to the effect of the grey eaves of gear, it is direct can to avoid and reduce the coal slag granules to sink
Taper internal face and the inner surface of wall with refractory lining, refracto top edge and near zone are hit, then extends making for water cooled furnace wall and wall with refractory lining, refracto
Use the life-span.
In order to access certain thickness dust on the top surface for keeping off grey eaves, the grey eaves of gear is hit so as to buffer coal slag granules
Impact, the top surface of the grey eaves of gear is horizontal plane.
In order to access certain thickness dust on the top surface for keeping off grey eaves, and can avoids the coal of bulky grain from keeping off ash
Eaves is broken, and the top surface of the grey eaves of gear is the low inclined plane of neighboring height, inner periphery.
In order to which the coal slag granules tumbled will be kept off on grey eaves be guided to again the burner hearth center of high-temp combustion, so that uncombusted
Coal slag granules ignite again, the inner peripheral surface of the grey eaves of the gear is from top to bottom gradually leads ash to the centroclinal extension of burner hearth
Face.
In order to ensure to have suitable coal storage combustion space, the bottom inner cavity surface of the wall with refractory lining, refracto is erected for vertically extending
To inner cavity surface.
In order to facilitate the structure of the grey eaves of gear is realized, the grey eaves of gear includes the steel that annular is connected on the internal face of water cooled furnace wall
Tendons skeleton and the castable refractory to be linked together with framework of steel reinforcement and the solidification of water cooled furnace wall internal face.
In summary, the utility model is simple in construction, it is only necessary to the bottom of water cooled furnace wall of the prior art is improved, because
This is easily fabricated, secondly, can increase the bonding strength of wall with refractory lining, refracto and water cooled furnace wall and can reduce wall with refractory lining, refracto and water cooled furnace wall friction
Rate of decay.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation that the utility model carries broken section；
Fig. 2 is structural representation when Fig. 1 works；
Fig. 3 is the partial enlargement structural representation of the a-quadrant along Fig. 2.
Embodiment
Referring to the drawings, the CFBB includes water cooled furnace wall 1 and surrounds the burner hearth 2 formed by water cooled furnace wall 1, should
Water cooled furnace wall is generally made up of double-layer metal plate and middle water storage chamber, and the shape of cross section of the burner hearth 2 generally has square
With two kinds of circle, the height of burner hearth may be designed as 15 meters or so according to boiler model, as shown in Figure 1-Figure 3, combustion be defended in order to increase
Band 6 and the bonding strength of water cooled furnace wall 1, the internal face of water cooled furnace wall 1 positioned at the bottom of burner hearth 2 are included from top to bottom gradually to burner hearth
The taper internal face 3 of 2 centers protrusion, along taper internal face lower edge, gradually downside is tilted in the enlarging shape of extension to outside burner hearth 2
Wall 4 and the vertical shape internal face 5 extended vertically downwards along the lower edge of enlarging shape internal face 4, the taper internal face 3 and enlarging shape
The inner layer metal plate of water cooled furnace wall directly can be carried out bending and formed, wall with refractory lining, refracto 6 then applies by internal face 4 when processing water cooled furnace wall
Be located on enlarging shape internal face 4 and vertical shape internal face 5, at the same ensure the upper end inner cavity surface of wall with refractory lining, refracto 6 with homonymy taper
The gradient of wall 3 is identical and concordant setting, and therefore, the attachment structure of the wall with refractory lining, refracto 6 and water cooled furnace wall 1 can increase on wall with refractory lining, refracto 6
The thickness and shock resistance structure intensity at edge, while also increase the top edge of wall with refractory lining, refracto 6 and the connection of water cooled furnace wall 1 is strong
Degree, secondly, in order to have suitable coal storage combustion space in the bottom of burner hearth 2, the bottom inner cavity surface of wall with refractory lining, refracto 6 is vertically extending
Vertical inner cavity surface；The wall with refractory lining, refracto 6 is prior art, and it is generally made of a kind of conventional castable refractory, mainly reduced
The caloric receptivity of capped water cooled furnace wall 1, so as to when ignition of the boiler or underload work, flame be stablized, avoid burner hearth 2 from going out
Fire and the effect that quick-wearing is crossed in reduction water cooled furnace wall 1 and overheat is burnt out.
With continued reference to accompanying drawing, annular is connected with one week and protruded on the internal face of water cooled furnace wall 1 of the upside of taper internal face 3
Gear ash eaves 7, realize the structure for keeping off grey eaves 7 for convenience, the gear ash eaves 7 can pass through the welding ring on the internal face of water cooled furnace wall 1
The framework of steel reinforcement 8 of shape simultaneously builds formwork for placing in the outside of framework of steel reinforcement 8, backward formwork for placing die cavity in pour fire resisting and pour
Material 9, linked together after fire resisting pouring material 9 solidifies with framework of steel reinforcement 8 and the internal face of water cooled furnace wall 1, afterwards when need
When safeguarding and repair the gear ash eaves 7 of damage, it can continue to be repaired using aforesaid operations mode；As shown in Fig. 2-Fig. 3, the gear
The bottom surface of grey eaves 7 and the top edge spacing distance substantially 50cm or so of taper internal face 3, the Internal periphery chi of the gear ash eaves 7
The very little overall size less than the lower edge of taper internal face 3, therefore, because keeping off the barrier effect of grey eaves 7, the cinder of sedimentation can be avoided
Particle directly hits taper internal face 3 and the top edge of wall with refractory lining, refracto 6 and the inner surface of water cooled furnace wall 1 of the grey lower section of eaves 7 of gear, then extends
Water cooled furnace wall 1 and the service life of wall with refractory lining, refracto 6.
As shown in Figures 2 and 3, in order to access certain thickness dust on the top surface for keeping off grey eaves 7, so as to buffer cinder
Particles hit keeps off impact during grey 7 top surface of eaves, then improves the service life for keeping off grey eaves 7, the top surface of the gear ash eaves 7 is level
Face, certainly, the top surface for keeping off grey eaves 7 can also be the inclined plane that neighboring is high, inner periphery is low, and its angle of inclination can be 10
Degree left and right, therefore certain thickness dust can be accessed on the top surface for keeping off grey eaves 7, and can avoids the coal of bulky grain from keeping off ash
Eaves 7 is broken, in addition, in order to which the coal slag granules tumbled will be kept off on grey eaves 7 be guided to again the center of burner hearth 2 of high-temp combustion, so as to
Uncombusted coal slag granules are made to ignite again, the inner peripheral surface for keeping off grey eaves 7 is from top to bottom gradually to 2 centroclinal extension of burner hearth
Red dog is led, what this was obliquely installed lead red dog does not show that in figure.
In summary, the utility model is not limited to above-mentioned embodiment.Those skilled in the art, this reality is not being departed from
On the premise of with new spirit and scope, some change and modification can be done, it is new that all these changes all should fall into this practicality
The protection domain of type.
Claims (6)
1. a kind of CFBB, including water cooled furnace wall（1）With by water cooled furnace wall（1）Around into burner hearth（2）, it is special
Sign is：Positioned at burner hearth（2）The water cooled furnace wall of bottom（1）Internal face is included from top to bottom gradually to burner hearth（2）Protrude at center
Taper internal face（3）, along taper internal face lower edge gradually to burner hearth（2）Outer downside tilts the enlarging shape internal face of extension
（4）With along enlarging shape internal face（4）The vertical shape internal face that lower edge extends downwards vertically（5）, the enlarging shape internal face（4）
Wall with refractory lining, refracto is connected with vertical shape internal face（6）, the wall with refractory lining, refracto（6）Upper end inner cavity surface and homonymy taper internal face
（3）Gradient is identical and concordant setting；Positioned at taper internal face（3）The water cooled furnace wall of upside（1）Annular is connected with internal face
The gear ash eaves of one week protrusion（7）, the grey eaves of gear（7）Internal periphery size be less than taper internal face（3）The profile chi of lower edge
It is very little.
2. CFBB as claimed in claim 1, it is characterised in that:The grey eaves of gear（7）Top surface be horizontal plane.
3. CFBB as claimed in claim 1, it is characterised in that:The grey eaves of gear（7）Top surface be neighboring
The inclined plane that edge is high, inner periphery is low.
4. CFBB as claimed in claim 1, it is characterised in that:The grey eaves of gear（7）Inner peripheral surface be by upper
To lower gradually to burner hearth（2）Red dog is led in centroclinal extension.
5. CFBB as claimed in claim 1, it is characterised in that:The wall with refractory lining, refracto（6）Bottom inner cavity surface
For vertically extending vertical inner cavity surface.
6. the CFBB as described in claim 1-5 is any, it is characterised in that:The grey eaves of gear（7）Including annular
It is connected to water cooled furnace wall（1）Framework of steel reinforcement on internal face（8）With with framework of steel reinforcement（8）And water cooled furnace wall（1）Internal face solidifies
The castable refractory to link together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720637777.8U CN206755154U (en) | 2017-06-05 | 2017-06-05 | A kind of CFBB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720637777.8U CN206755154U (en) | 2017-06-05 | 2017-06-05 | A kind of CFBB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206755154U true CN206755154U (en) | 2017-12-15 |
Family
ID=60622031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720637777.8U Expired - Fee Related CN206755154U (en) | 2017-06-05 | 2017-06-05 | A kind of CFBB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206755154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925748A (en) * | 2019-11-28 | 2020-03-27 | 国网河北省电力有限公司电力科学研究院 | Boiler capable of deeply regulating peak |
-
2017
- 2017-06-05 CN CN201720637777.8U patent/CN206755154U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925748A (en) * | 2019-11-28 | 2020-03-27 | 国网河北省电力有限公司电力科学研究院 | Boiler capable of deeply regulating peak |
| CN110925748B (en) * | 2019-11-28 | 2021-11-12 | 国网河北省电力有限公司电力科学研究院 | Boiler capable of deeply regulating peak |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20180605 |