CN209511998U - A kind of circulating fluid bed boiler air distributor structure - Google Patents
A kind of circulating fluid bed boiler air distributor structure Download PDFInfo
- Publication number
- CN209511998U CN209511998U CN201920130659.7U CN201920130659U CN209511998U CN 209511998 U CN209511998 U CN 209511998U CN 201920130659 U CN201920130659 U CN 201920130659U CN 209511998 U CN209511998 U CN 209511998U
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- China
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- distribution plate
- air
- air distribution
- scum pipe
- circulating fluid
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a kind of circulating fluid bed boiler air distributor structures, the air distribution plate of fluidized-bed combustion boiler is between air compartment and burner hearth, water screen tube is provided with around the burner hearth and air compartment, the inside of air distribution plate is also equipped with water screen tube, and the water screen tube of the water screen tube inside air distribution plate and air compartment and burner hearth is respectively formed direct series connection；It is evenly provided with several blast caps on the air distribution plate, and is additionally provided with scum pipe on air distribution plate, the air distribution plate is provided with the gradient of slope aspect scum pipe；The scum pipe includes deslagging tube body and sealing to through the wall pipe, is provided with annular gap between the deslagging tube body and sealing to through the wall pipe.Pass through the inclined design for being changed to air distribution plate there is slope aspect scum pipe, strengthen the deslagging effect of fluidized-bed combustion boiler, weight slag fuel is avoided to cause the technical problem of deslagging difficulty, simultaneously, expansion clearance will be designed between deslagging tube body and seal pipe, scum pipe is avoided because causing the problem of deslagging difficulty after expanded by heating.
Description
Technical field
The utility model belongs to station boiler manufacturing technology field, in particular to a kind of circulating fluid bed boiler cloth wind
Hardened structure.
Background technique
The air compartment of circulating fluidized bed boiler is mainly that the wind that blower comes guides in an isobaric bellows, then through wind
Cap enters combustion chamber.If it is ignition under bed in view of air distribution plate wants expanded by heating, air compartment heat absorption heat insulation effect is good and uses water
Cold air chamber.
This is that front and back Mo Shi wall bending left and right is downwardly extending water cooled wind chamber, and blast cap is arranged on Mo Shi wall, at this time wind
Room is made of membrane wall, as water cooled wind chamber.Water cooled wind chamber top is blast cap air distribution plate, and blast cap air distribution plate is gas distributor
One kind, and in conventional structure, air distribution plate Apoplexy cap is arranged horizontally, and air distribution plate is disposed with slag dropping tube, for conventional fuel,
Can smoothly deslagging be then highly detrimental to weight slag and exclude, to boiler direct motion band but for having the fuel of heavy slag after burning
Many hidden danger are carried out.
Utility model content
The purpose of this utility model is that: it is directed to above-mentioned hidden danger of the existing technology, provides a kind of New Cycle stream
Fluidized bed boiler air distributor structure solves heavy slag fuel bring discharge difficulty technical problem.
The technical solution of the utility model technology is achieved in that a kind of circulating fluid bed boiler air distribution plate knot
Structure, the air distribution plate of fluidized-bed combustion boiler are provided with water screen tube, cloth between air compartment and burner hearth around the burner hearth and air compartment
The inside of aerofoil is also equipped with water screen tube, and the water screen tube of the water screen tube inside air distribution plate and air compartment and burner hearth is respectively formed
Directly it is connected in series；It is evenly provided with several blast caps on the air distribution plate, and is additionally provided with scum pipe on air distribution plate, the cloth
Aerofoil is provided with the gradient of slope aspect scum pipe；The scum pipe includes deslagging tube body and sealing to through the wall pipe, the scum pipe sheet
Annular gap is provided between body and sealing to through the wall pipe.
Air distribution plate is arranged in circulating fluid bed boiler air distributor structure described in the utility model, the scum pipe
Center, the gradient of air distribution plate slope aspect scum pipe are 2-4 °.
Circulating fluid bed boiler air distributor structure described in the utility model, at the top of the blast cap on the air distribution plate
It is located in the same horizontal plane or the whole gradient with air distribution plate in the top of blast cap is consistent.
Circulating fluid bed boiler air distributor structure described in the utility model, the air distribution plate are divided into inner ring and outer
Ring, the gradient towards scum pipe of the inner ring are 3-4 °, and the gradient of the outer ring towards scum pipe is 2-3 °.
Circulating fluid bed boiler air distributor structure described in the utility model, the scum pipe and sealing to through the wall pipe it
Between annular gap value be 20-30mm；Annular gap between the scum pipe and sealing to through the wall pipe has 5-10 ° of inclination
Degree.
Circulating fluid bed boiler air distributor structure described in the utility model, the blast cap air outlet and air distribution plate it
Between vertical height be 2-5cm.
Circulating fluid bed boiler air distributor structure described in the utility model is set corresponding to blast cap on the air distribution plate
Several air hoses are equipped with, on air hose, the top circumferential direction of air hose is provided with several air hose stomatas, the bottom of blast cap for the blast cap back-off
It has been arranged circumferentially several blast cap stomatas.
Circulating fluid bed boiler air distributor structure described in the utility model, the lower edge of the blast cap are welded on air hose
On, the blast cap stomata is provided with outer 7-10 ° oblique of gradient.
Circulating fluid bed boiler air distributor structure described in the utility model, the air distribution plate are successively set from top to bottom
It is set to flame retardant coating, heat insulation layer, sealant and card.
The utility model has the beneficial effect that the inclined design by being changed to air distribution plate to have slope aspect scum pipe, strengthens
The deslagging effect of fluidized-bed combustion boiler avoids weight slag fuel from causing the technical problem of deslagging difficulty, meanwhile, by deslagging tube body with it is close
Expansion clearance is designed between tube sealing, avoids scum pipe because causing the problem of deslagging difficulty after expanded by heating.
Detailed description of the invention
Fig. 1 is the utility model fluidized-bed structure schematic diagram；
Fig. 2 is the scum pipe schematic diagram of the utility model fluidized bed；
Fig. 3 is the utility model blast cap and air duct structure schematic diagram.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model technology.It should be appreciated that specific embodiment described herein is only used to
It explains the utility model, is not used to limit the utility model.
As shown, circulating fluid bed boiler air distributor structure, the air distribution plate 4 be located at air compartment 2 and burner hearth 1 it
Between, water screen tube 3 is provided with around the burner hearth 1 and air compartment 2, the inside of air distribution plate 4 is also equipped with water screen tube 3, and cloth
The water screen tube 3 of water screen tube 3 and air compartment 2 and burner hearth 1 inside aerofoil 4 is respectively formed direct series connection；On the air distribution plate 4
Several blast caps 5 are evenly provided with, and are additionally provided with scum pipe 6 on air distribution plate 4, the air distribution plate 4 is provided with slope aspect scum pipe 6
Gradient.
Further, the center of air distribution plate 4 is arranged in the scum pipe 6, and the gradient of 4 slope aspect scum pipe 6 of air distribution plate is 2-
4°.In the same level or top of blast cap 5 entirety and air distribution plate 4 are respectively positioned at the top of blast cap 5 on the air distribution plate 4
The gradient is consistent.Preferably, the air distribution plate is divided into inner ring 41 and outer ring 42, the inner ring 41 towards scum pipe 6
The gradient is 3-4 °, and the gradient of the outer ring 42 towards scum pipe 6 is 2-3 °.
The scum pipe 6 includes deslagging tube body 61 and sealing to through the wall pipe 62, the deslagging tube body 61 and sealing to through the wall
Annular gap 63 is provided between pipe 62.It is preferred that volume, the annular gap value between the scum pipe 61 and sealing to through the wall pipe 62 are
20-30mm.Further, the annular gap between the scum pipe 61 and sealing to through the wall pipe 62 has 5-10 ° of gradient.
Correspond to blast cap 5 on the air distribution plate 4 and be provided with several air hoses 7, the back-off of blast cap 5 is on air hose 7, air hose 7
Top circumferential direction be provided with several air hose stomatas 71, the bottom circumferential direction of blast cap 5 is provided with several blast cap stomatas 51.Further,
The lower edge of the blast cap 5 is welded on air hose 7, and the blast cap stomata 51 is provided with outer 7-10 ° oblique of gradient.The air hose 7
The outer cover of part in air distribution plate is equipped with air hose 72.
Vertical height between the air outlet and air distribution plate 4 of the blast cap 5 is 2-5cm.The air distribution plate 4 from top to bottom according to
Secondary to be set as flame retardant coating, heat insulation layer, sealant and card, the thickness of the flame retardant coating is set as 26-33mm.The air distribution plate
Heat insulation layer is with a thickness of 60-65mm, and sealant is with a thickness of 25-30mm, and card is with a thickness of 6-9mm, to reinforce fire resisting effect.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. a kind of circulating fluid bed boiler air distributor structure, it is characterised in that: the air distribution plate of fluidized-bed combustion boiler is located at air compartment
Between burner hearth, water screen tube is provided with around the burner hearth and air compartment, the inside of air distribution plate is also equipped with water screen tube, and
The water screen tube of water screen tube and air compartment and burner hearth inside air distribution plate is respectively formed direct series connection；On the air distribution plate uniformly
Be provided with several blast caps, and scum pipe is additionally provided on air distribution plate, the air distribution plate is provided with the gradient of slope aspect scum pipe；Institute
Stating scum pipe includes deslagging tube body and sealing to through the wall pipe, is provided between annular between the deslagging tube body and sealing to through the wall pipe
Gap.
2. circulating fluid bed boiler air distributor structure according to claim 1, it is characterised in that: the scum pipe is set
It sets at the center of air distribution plate, the gradient of air distribution plate slope aspect scum pipe is 2-4 °.
3. circulating fluid bed boiler air distributor structure according to claim 2, it is characterised in that: on the air distribution plate
Blast cap at the top of be respectively positioned on the whole gradient with air distribution plate in the same level or top of blast cap and be consistent.
4. circulating fluid bed boiler air distributor structure according to claim 3, it is characterised in that: the air distribution plate quilt
It is divided into inner ring and outer rings, the gradient towards scum pipe of the inner ring is 3-4 °, and the gradient of the outer ring towards scum pipe is 2-
3°。
5. circulating fluid bed boiler air distributor structure according to claim 4, it is characterised in that: the scum pipe with
Annular gap value between sealing to through the wall pipe is 20-30mm；Annular gap between the scum pipe and sealing to through the wall pipe has
5-10 ° of gradient.
6. circulating fluid bed boiler air distributor structure according to claim 2, it is characterised in that: the blast cap outlet air
Vertical height between mouth and air distribution plate is 2-5cm.
7. circulating fluid bed boiler air distributor structure according to claim 3, it is characterised in that: on the air distribution plate
Blast cap is provided with several air hoses, on air hose, the top circumferential direction of air hose is provided with several air hose gas for the blast cap back-off
Hole, the bottom circumferential direction of blast cap are provided with several blast cap stomatas.
8. circulating fluid bed boiler air distributor structure according to claim 7, it is characterised in that: under the blast cap
Along being welded on air hose, the blast cap stomata is provided with outer 7-10 ° oblique of gradient.
9. circulating fluid bed boiler air distributor structure according to claim 8, it is characterised in that: the air distribution plate from
On set gradually down as flame retardant coating, heat insulation layer, sealant and card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130659.7U CN209511998U (en) | 2019-01-25 | 2019-01-25 | A kind of circulating fluid bed boiler air distributor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130659.7U CN209511998U (en) | 2019-01-25 | 2019-01-25 | A kind of circulating fluid bed boiler air distributor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209511998U true CN209511998U (en) | 2019-10-18 |
Family
ID=68202478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920130659.7U Active CN209511998U (en) | 2019-01-25 | 2019-01-25 | A kind of circulating fluid bed boiler air distributor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209511998U (en) |
-
2019
- 2019-01-25 CN CN201920130659.7U patent/CN209511998U/en active Active
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