CN208025503U - One kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage - Google Patents
One kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage Download PDFInfo
- Publication number
- CN208025503U CN208025503U CN201721417430.9U CN201721417430U CN208025503U CN 208025503 U CN208025503 U CN 208025503U CN 201721417430 U CN201721417430 U CN 201721417430U CN 208025503 U CN208025503 U CN 208025503U
- Authority
- CN
- China
- Prior art keywords
- blast cap
- cap
- stage casing
- straight tube
- blast
- 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.)
- Active
Links
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses one kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage, including blast cap, straight tube stage casing and blast cap intubation, it is mushroom cap head at the top of blast cap, lower part is square bottom plate, closely the cap head side wall of plane is provided with along the circumferentially uniformly distributed multiple radial blast cap apertures of cap head on square floor, straight tube stage casing upper end is fixedly connected on blast cap lower end, lower end is fixedly connected in blast cap intubation, blast cap, straight tube stage casing with blast cap cannula interior is hollow is connected to, straight tube stage casing upper end is provided with extension cylindrical section, extend cylindrical section to stretch into inside blast cap beyond one section of blast cap aperture, and the toroidal cavity of upper end opening is formed between blast cap cap head side wall；Leakiness lime-ash, slag do not precipitate the utility model, blowing out cleaner workload is small, the consumption of aperture wind pressure kinetic energy is few；Stage casing and connection screw thread will not be burnt out, when operation will not fall off；When cleaning, blast cap will not loosen；It will not be also formed when operation to blowing abrasion, also be had the characteristics that simple in structure, at low cost.
Description
Technical field
The utility model is related to one kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage, belong to fluidized bed combustion and set
Standby technical field.
Background technology
For circulating fluidized bed boiler because cold and oxygen deficient burns, environmental benefit is fine, obtains development in an all-round way.For miniature boiler
With low colm and the gangue boiler of burning, mostly use low speed bed；The low speed bed big flow velocity of bed surface is low, using the small-sized blast cap of densely covered formula
Φ32（Material returning device is used）With small-sized blast cap Φ 50（Main bed is used）, because only cap head abrasion, water-cooled distributor boiler are in operation
Cap head is replaced using two-part column, mushroom blast cap blast cap similar with other, is threadedly coupled.Common cap structure See Figure 4-
Shown in 6.
Small-size columnar mushroom blast cap blast cap similar with other finds following defect in use：1. interior air duct is straight
Logical, when blast wandering blowing out, leakiness lime-ash causes air compartment dust stratification accumulated slag to block；2. facilitating using two-part to replace, small blast cap
The easily rotation of cap head weight minor thread falls off；3. high-strength wear-resistant pouring material must be used；4. the following size of two-part cap head aperture is deep,
Low speed bed wind pressure is low, and easily the thicker slag of deposition, blowing out cleaner workload are big；5. to prevent slag from precipitating, blast cap aperture will have a down dip
5-15 degree, the densely covered gap of blast cap are small（Main bed pitch < 80, minimum clear distance are less than 30）Cause aperture outlet air consumption of repeatedly turning back dynamic
Energy；Kinetic energy is consumed 6. such as easily causing aperture outlet air with column cap head and repeatedly turning back, top is not round and smooth easy to wear；7. installation when because
Screw thread is random, can not accomplish that aperture orientation is determining or misplaces, it is possible to create to blowing, because clear distance is caused less than 30 to blowing mill
Damage；8. two-part cap head and hypomere all with flame contact, it is necessary to it is of high cost using same expensive abrasion-resistant cast steel material；9. connecting
Connect screw thread and flame contact, the high easy burn-out of temperature.10. clearing furnace handles coking, blast cap is easily loosened and is hooked out.
Invention content
The technical problems to be solved in the utility model is：One kind is provided and is suitable for low speed bed three-stage without the grey mushroom wind of leakage
Cap, to solve the above-mentioned problems of the prior art.
The technical solution that the utility model is taken is：One kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage, packet
Blast cap, straight tube stage casing and blast cap intubation are included, is mushroom cap head at the top of blast cap, lower part is square bottom plate, closely square bottom
The cap head side wall of plane is provided with along the circumferentially uniformly distributed multiple radial blast cap apertures of cap head on plate, and straight tube stage casing upper end is fixedly connected
In blast cap lower end, lower end is fixedly connected in blast cap intubation, blast cap, straight tube stage casing and blast cap cannula interior is hollow is connected to, straight tube
Stage casing upper end is provided with extension cylindrical section, extends cylindrical section and stretches into and exceeds one section of blast cap aperture inside blast cap, and with cap head side wall
Between formed upper end opening toroidal cavity.
Preferably, above-mentioned blast cap aperture is arranged six, outside 0-10 ° of updip.
Preferably, above-mentioned straight tube stage casing upper end is threadably secured connection cap head.
Preferably, above-mentioned extension cylindrical section diameter is less than the thread head of straight tube stage casing upper end.
Preferably, above-mentioned blast cap intubation lower part and water cooled wind chamber air distribution plate firm welding.
Preferably, refractory concrete soil layer is filled between above-mentioned blast cap.
Preferably, above-mentioned cap head material is abrasion resistant cast steel ZG4Cr26Ni4Mn3NRe, and straight tube stage casing and blast cap are intubated material
For A304.
The beneficial effects of the utility model：Compared with prior art, the utility model effect is as follows：
（1）It is mushroom at the top of the utility model cap head, round and smooth, particle is not easy to wear；Aperture outlet air will not form and be more than
It once turns back, reduces kinetic energy consumption；Aperture wind, because of scattering principle, reduces concentration effect, blast cap cap head material at cap head
Matter abrasion resistant cast steel ZG4Cr26Ni4Mn3NRe because installation after gather square protective effect, connection screw thread not with flame contact,
It will not burn out, straight tube stage casing and blast cap intubation generally select the suitable A304 of price without Wear-resistant, high-temperature resistant material, and gather square
Following castable is protected, inexpensive clay refractory concrete may be used；
（2）The utility model blast cap aperture is revealed all the details（Closely plane on square floor）Cause slag that can not precipitate, accumulated slag
Few, easy to clean, drill updip 0-10 degree, reduces kinetic energy consumption；Cap head lower part square abrasion resistant cast steel, wear-resistant, iron after installation
Easy to clean lime-ash on plate；
（3）Six aperture of the utility model blast cap is uniformly distributed, because of the positioning action of square floor, can accomplish phase after installation
Adjacent aperture dislocation, avoids the formation of and is worn to blowing and causing, the positioning action of adjacent square bottom plate also makes blast cap screw thread not revolve
Turn to cause to fall off, plays anti-off effect；The engagement of neighboring blocks also makes when clearing furnace handles coking, and blast cap is not easy pine
It moves or is hooked out；
（4）The utility model blast cap straight tube stage casing is stretched into inside blast cap cap head and forms bell jar labyrinth beyond blast cap aperture
The toroidal cavity of structure, leakiness lime-ash, does not play the role of anti-blocking；
In conclusion leakiness lime-ash, slag do not precipitate the utility model, blowing out cleaner workload is small, aperture wind pressure is dynamic
It can consume few；Stage casing and connection screw thread will not be burnt out, when operation will not fall off；When cleaning, blast cap will not loosen；When operation also not
It can be formed to blowing abrasion, also be had the characteristics that simple in structure, at low cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is blast cap mounting structure schematic diagram；
Fig. 3 is the A of Fig. 2 to structural schematic diagram；
Fig. 4 is existing cap structure schematic diagram；
Fig. 5 is existing blast cap mounting structure schematic diagram；
Fig. 6 is the A of Fig. 5 to structural schematic diagram.
In figure, 1- blast caps, 2- straight tubes stage casing, 3- blast caps intubation, 4- water cooled wind chamber air distribution plates, 5- refractory concretes, 6- rings
Room cavity, 7- blast cap apertures, 8- cap heads, 9- square floors, 10- extend cylindrical section, and arrow indicates that wind direction is turned back in figure.
Specific implementation mode
Below in conjunction with the accompanying drawings and the utility model is described further in specific embodiment.
Embodiment 1：As shown in figures 1 to 6, a kind of to be suitable for low speed bed three-stage without the grey mushroom blast cap of leakage, including blast cap 1,
Straight tube stage casing 2, blast cap intubation 3,1 top of blast cap is mushroom cap head 8, and lower part is square bottom plate 9, internal thread interface；Closely
0-10 ° of six blast cap apertures 7 of 8 radial equipartition updip of cap head of plane on square floor 9,2 upper external thread interface of straight tube stage casing,
Lower part bell socket, cap head 8 are threadedly coupled with straight tube stage casing 2, and straight tube stage casing 2 stretches into 1 inside of blast cap and exceeds blast cap aperture 7 one
The ring casing cavity 6 for extending the bell jar labyrinth structure that upper end opening is formed between cylindrical section 10 and 1 side wall of blast cap of section, blast cap intubation 3
For straight tube, top bell socket, lower part and 4 firm welding of water cooled wind chamber air distribution plate, filling refractory concrete makes between blast cap 1
Fire resisting mixed mud layer 5.
Preferably, above-mentioned 1 material of cap head is abrasion resistant cast steel ZG4Cr26Ni4Mn3NRe, straight tube stage casing 2 and blast cap intubation 3
Material is A304, and 5 material of refractory concrete soil layer is clay fire-resistant.
Preferably, above-mentioned blast cap intubation 3 is welded with water cooled wind chamber air distribution plate 4, after cap head 1 and straight tube stage casing 2 are tightened, with
Blast cap is intubated the docking of 3 socket joints, fills refractory concrete 5, and when replacement is up knocked out out of air compartment, only replaces cap head.
Utility model works process is summarized as follows：
Fluidization air enters from blast cap centre bore, until turn back into ring casing cavity 6 after at the top of endoporus, it is small by upper oblique blast cap
Hole 7 sprays at a high speed, holds up bed material fluidisation operation, when blast wandering blowing out, because of the barrier effect of toroidal cavity 6, fine ash slag is not
Easily it is compromised into air compartment.
First blast cap intubation 3 is welded with water cooled wind chamber air distribution plate 4 when installing and using, blast cap 1 and straight tube stage casing 2 are tightened
Afterwards, 3 socket joints are intubated with blast cap dock, fill refractory concrete 5, when replacement is up knocked out out of air compartment, only replacement cap head.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model, therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (3)
1. one kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage, it is characterised in that：Including blast cap（1）, straight tube stage casing
（2）It is intubated with blast cap（3）, blast cap（1）Top is mushroom cap head（8）, lower part is square bottom plate（9）, closely square bottom
Plate（9）The cap head of upper plane（8）Side wall is provided with along cap head（8）Circumferentially uniformly distributed multiple radial blast cap apertures（7）, straight tube stage casing
（2）Upper end is fixedly connected on blast cap（1）Lower end, lower end are fixedly connected on blast cap intubation（3）On, blast cap（1）, straight tube stage casing（2）
It is intubated with blast cap（3）Inner hollow is connected to, straight tube stage casing（2）Upper end is provided with extension cylindrical section（10）, extend cylindrical section（10）
Stretch into blast cap（1）Inside exceeds blast cap aperture（7）One section, and and blast cap（1）The toroidal cavity of upper end opening is formed between side wall
（6）；Blast cap aperture（7）Setting six, outside 0-10 ° of updip；Blast cap is intubated（3）Lower part and water cooled wind chamber air distribution plate（4）Weldering
It connects securely；Blast cap（1）Between fill refractory concrete soil layer（5）；Cap head（8）Material is abrasion resistant cast steel ZG4Cr26Ni4Mn3NRe,
Straight tube stage casing（2）It is intubated with blast cap（3）Material is A304.
2. one kind according to claim 1 is suitable for low speed bed three-stage without the grey mushroom blast cap of leakage, it is characterised in that：Directly
Pipe stage casing（2）Upper end is threadably secured connection cap head（8）.
3. one kind according to claim 1 is suitable for low speed bed three-stage without the grey mushroom blast cap of leakage, it is characterised in that：Prolong
Oval shell of column（10）Diameter is less than straight tube stage casing（2）The thread head of upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721417430.9U CN208025503U (en) | 2017-10-30 | 2017-10-30 | One kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721417430.9U CN208025503U (en) | 2017-10-30 | 2017-10-30 | One kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208025503U true CN208025503U (en) | 2018-10-30 |
Family
ID=63896976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721417430.9U Active CN208025503U (en) | 2017-10-30 | 2017-10-30 | One kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208025503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020104534A1 (en) * | 2018-11-21 | 2020-05-28 | Thyssenkrupp Industries India Pvt. Ltd. | Mushroom head primary air nozzle for cold cyclone cfbc boiler |
-
2017
- 2017-10-30 CN CN201721417430.9U patent/CN208025503U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020104534A1 (en) * | 2018-11-21 | 2020-05-28 | Thyssenkrupp Industries India Pvt. Ltd. | Mushroom head primary air nozzle for cold cyclone cfbc boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108330233B (en) | Liquid slag dry centrifugal granulation and waste heat recovery system with slag caching and flow control functions | |
| CN103398375B (en) | With the cyclone separator of circulating fluidized bed boiler of wear-resisting target area and guider | |
| CN108102719B (en) | Gasification furnace capable of preventing slag formation and efficiently recycling heat energy | |
| CN208025503U (en) | One kind being suitable for low speed bed three-stage without the grey mushroom blast cap of leakage | |
| CN203478220U (en) | Novel cyclone separator of circulating fluidized bed boiler | |
| CN109268855B (en) | Slag discharging structure of single-air-chamber differential biomass fuel circulating fluidized bed boiler | |
| CN102221201A (en) | Equal-bed pressure cold slag fluidized bed of circulating fluidized bed boiler and operation method thereof | |
| CN106833749B (en) | Gas distributor for fluidized bed coal gasification furnace | |
| CN106678845A (en) | Continuous slag discharging device of biomass particle combustion furnace | |
| CN203893196U (en) | Slagging device of garbage incinerator of circulating fluid bed | |
| CN202658177U (en) | Bottom blowing protection brick structure for converter | |
| CN105779672B (en) | It is a kind of for controlling the stopper of molten slag flow | |
| CN108676583B (en) | Improved fluidized bed gasifier | |
| CN203744245U (en) | Deslagging device of circulating fluidized bed boiler | |
| CN213686803U (en) | Stepped fluidized bed surface structure of biomass circulating fluidized bed boiler | |
| CN101476721A (en) | Combined fluidized bed slag cooling apparatus | |
| CN204644307U (en) | A kind of new type of airflow bed gasification furnace chilling ring | |
| CN108167824B (en) | Circulating fluidized bed power station boiler system | |
| CN203478230U (en) | Valve liner | |
| CN1312431C (en) | Sealed fluid back-feeder | |
| CN209622809U (en) | Vertical rotating waste incinerator | |
| CN203364615U (en) | Material scattering device | |
| CN212929977U (en) | Bell-type hood | |
| CN207294697U (en) | The Y type airflow bed gasification furnaces of dry granulation deslagging | |
| CN113897223B (en) | Brick structure of burner chamber and coal water slurry gasification furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |