CN207179649U - A kind of blast cap of circulating fluidized bed boiler component - Google Patents
A kind of blast cap of circulating fluidized bed boiler component Download PDFInfo
- Publication number
- CN207179649U CN207179649U CN201720952879.9U CN201720952879U CN207179649U CN 207179649 U CN207179649 U CN 207179649U CN 201720952879 U CN201720952879 U CN 201720952879U CN 207179649 U CN207179649 U CN 207179649U
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- CN
- China
- Prior art keywords
- airduct
- bell jar
- sleeve pipe
- fluidized bed
- blast cap
- 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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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a kind of blast cap of circulating fluidized bed boiler component, including air distribution plate, the airduct that is fixed on the sleeve pipe of air distribution plate, is fixed on sleeve pipe and is coaxially disposed with sleeve pipe, the bell jar for being sheathed on airduct, the airduct offers fresh air inlet close to upper end, the bell jar is provided with the exhaust vent being connected with fresh air inlet close to the position of lower end, the airduct upper surface is provided with connecting pole, and the bell jar is threadedly connected to connecting pole.For the connecting pole with airduct in being coaxially disposed, it is in the connecting hole of screw thread cooperation that upper surface, which is provided with connecting pole, in the bell jar.The utility model, which provides, can facilitate a kind of blast cap of circulating fluidized bed boiler component that disassembly and installation is carried out to bell jar.
Description
Technical field
Fluidized-bed combustion boiler is the utility model is related to, more particularly to a kind of blast cap of circulating fluidized bed boiler component.
Background technology
Blast cap of circulating fluidized bed boiler is a part for boiler First air air-intake device, and the effect of First air air-intake device is
Air is uniformly entered the combustion zone of boiler bottom, to ensure the burning of fuel, First air air-intake device include air distribution plate and
The intensive multiple blast cap components being arranged on air distribution plate, blast cap component have the forms such as mushroom hair style, cylindricality, spherical and umbrella shape.
Figure is a kind of blast cap assembly assumption diagram of traditional fluidized-bed combustion boiler, and the blast cap component includes sleeve pipe, airduct and clock
Cover, sleeve pipe are fixed on air distribution plate by way of cast, and airduct is fixedly mounted in sleeve pipe, and bell jar tips upside down on the shoulder of airduct
On, the problem of and being welded and fixed, but existing with airduct at shoulder is that bell jar is located at close to cloth with the position that airduct is welded and fixed
The position of aerofoil, and the intensive arrangement of blast cap component, so the space between adjacent blast cap component is small, dismantles the bell jar of damage and consolidate
It is all extremely difficult that Dingan County fills new bell jar.
Utility model content
The purpose of this utility model is to provide a kind of blast cap of circulating fluidized bed boiler component, it is convenient bell jar is carried out dismounting and
Installation.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of recirculating fluidized bed pot
Stove blast cap component, including air distribution plate, the airduct for being fixed on the sleeve pipe of air distribution plate, being fixed on sleeve pipe and being coaxially disposed with sleeve pipe, set
Located at the bell jar of airduct, the airduct offers fresh air inlet close to upper end, and the bell jar is provided with close to the position of lower end and air intake
The exhaust vent that hole is connected, the airduct upper surface are provided with connecting pole, and the bell jar is threadedly connected to connecting pole.
By using above-mentioned technical proposal, connecting pole is arranged on to the upper surface of airduct, so as to facilitate installation personnel by clock
Cover need to only rotate bell jar in upper end and can be achieved with connection with airduct, and the mode being threadedly coupled in alignment with connecting pole
Make the stable connection of airduct and bell jar, both disengagings will not be caused because of its internal wind-force, and upon installation, clock
Cover is connected with airduct, so as to realize normal air intake.
The utility model is further arranged to：The connecting pole is with airduct in being coaxially disposed, and upper surface is set in the bell jar
There is the connecting hole coordinated with connecting pole in screw thread.
By using above-mentioned technical proposal, connecting pole is protruded from into airduct upper surface, so as to facilitate staff to be grasped
Install, and connecting hole be arranged to the inside of bell jar, the cooperation position of connecting pole and connecting hole is in the inside of bell jar,
It will not be influenceed by the combustion process of boiler internal, because the combustion fumes of boiler internal are very big, if by connecting pole
Protrude from bell jar and expose to the open air in boiler internal, because long-term burning can be such that flue dust largely accumulates, and high-temperature factor
Influence can all influence the proper engagement of bell jar and connecting pole, avoid threaded relation between the two from failing and can not be dismantled.
The utility model is further arranged to：The connecting pole is integrally formed with airduct.
By using above-mentioned technical proposal, the degree of being connected firmly between connecting pole and airduct is ensure that, so as to also just be lifted
Connection fastness between bell jar and connecting pole, and connecting pole and the airduct is kept more preferable axiality, covering bell jar
After airduct, the wind-force suffered by its inwall is uniform.
The utility model is further arranged to：The airduct plugs and is threadedly connected to sleeve pipe.
By using above-mentioned technical proposal, the disassembly and installation to airduct is facilitated, can also be changed according to different operating modes
Become the height of airduct, the corresponding height for changing bell jar, so as to can just be blown to the different zones of boiler internal, meet corresponding
Combustion requirements.
The utility model is further arranged to：The bell jar inwall is embedded with the first high-temperature resistant seal ring, and described first is resistance to
High-temperature seal ring fits in airduct outer wall.
By using above-mentioned technical proposal, when gradually rotating bell jar realization and the cooperation of connecting pole, bell jar is also past therewith
Decline, when the first high-temperature resistant seal ring and airduct outer wall of bell jar inwall are bonded, the sky that makes airduct enter in bell jar
Gas can only enter to boiler from the exhaust vent of bell jar, and avoid gap discharge of the air between bell jar and airduct.
The utility model is further arranged to：The air distribution plate is provided with corresponds mounting groove with sleeve pipe, outside described sleeve pipe
Wall is integrally formed with the shoulder for being embedded at mounting groove.
By using above-mentioned technical proposal, when casting sleeve, the shoulder of sleeve pipe is set to be embedded in mounting groove, because sleeve pipe
Air distribution plate is arranged in, coordinating using the conflict of shoulder and mounting groove can make sleeve pipe can not be dropped from air distribution plate, improve solid
Determine the convenience of sleeve pipe.
The utility model is further arranged to：The shoulder surface is embedded with the second high-temperature resistant seal ring, the bell jar bottom
Face contacts at the second high-temperature resistant seal ring.
By using above-mentioned technical proposal, after bell jar is connected into connecting pole, the bottom surface of bell jar is set to contact at the second resistance to height
Warm sealing ring, make the thread groove entered in the gap that flue dust will not be between bell jar and shoulder in boiler between sleeve pipe and airduct
In, avoid flue dust from accumulating and cause sleeve pipe and airduct can not normal threads turn.
The utility model is further arranged to：The fresh air inlet and exhaust vent are in axially to tilt down setting.
By using above-mentioned technical proposal, fresh air inlet and the central axial of exhaust vent are arranged to tilt, so as to have
Effect avoid the flue dust of boiler internal from being entered to by fresh air inlet and exhaust vent in airduct, avoid accumulating in airduct and to air quantity
Impact.
In summary, the utility model has the advantages that：Coordinated using the screw thread of connecting pole and bell jar and facilitated
Replacing to bell jar, saves maintenance time, so as to reduce the influence to boiler normal operation, improves efficiency, at the same time,
Connecting hole is arranged on to the inside of bell jar can reduce it and influenceed by flue dust and temperature, and lifted makes between connecting pole and bell jar
Use the life-span.
Brief description of the drawings
Fig. 1 is the top view of the present embodiment air distribution plate；
Fig. 2 is the sectional view that the present embodiment is mainly used in body cap structure；
Fig. 3 is Fig. 2 I portions enlarged drawing.
Reference：1st, air distribution plate；2nd, sleeve pipe；3rd, airduct；4th, bell jar；5th, fresh air inlet；6th, exhaust vent；7th, connecting pole；8、
Connecting hole；9th, the first high-temperature resistant seal ring；10th, mounting groove；11st, shoulder；12nd, the second high-temperature resistant seal ring；13rd, mounting hole；14、
Air-inlet cavity.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of blast cap of circulating fluidized bed boiler component, shown in reference picture 1, including one piece is fixed on boiler close to bottom position
And it is in horizontal air distribution plate 1；The mounting hole 13 arranged in length and breadth is offered on air distribution plate 1, is provided with each mounting hole 13
One group of cap structure；The lower section of air distribution plate 1 is the First air inlet air plenum of boiler, and the top of air distribution plate 1 is the combustion zone of boiler, outside
The First air in portion enters to the combustion zone of boiler by each group of cap structure on air distribution plate 1, so as to be carried for the burning of fuel
For air.
Shown in reference picture 2, cap structure includes a sleeve pipe for being arranged in mounting hole 13 2, sleeve pipe 2 in being vertically arranged and
Through setting, the lower end of sleeve pipe 2 is arranged in the lower surface of air distribution plate 1 for upper and lower end face, when mounted, will be covered using the mode poured
Be fixedly connected between pipe 2 and air distribution plate 1, and because mounting hole 13 through air distribution plate 1, in order to be lifted in installation process
The stability of the installation site of sleeve pipe 2, in the upper end of sleeve pipe 2 integrally formed with shoulder 11, the section of shoulder 11 is in annular shape, meanwhile,
In the upper surface of air distribution plate 1, the periphery along mounting hole 13 is offered to lower recess and with shoulder 11 in the mounting groove for being embedded cooperation
10, avoid sleeve pipe 2 from directly being dropped from mounting hole 13 so as to which the cooperation of shoulder 11 and mounting groove 10 can be utilized when mounted.
Internal thread is tapped with inwall of the sleeve pipe 2 close to upper end, and grafting and screw thread are combined with one and its in sleeve pipe 2
In the airduct 3 being coaxially disposed, airduct 3 is under shed structure, is offered in outer wall of the airduct 3 close to upper surface along its circumferencial direction
Some fresh air inlets 5, fresh air inlet 5 it is central axial in tilting down setting so that First air can be by sleeve pipe 2 and airduct 3
Fresh air inlet 5 is entered in boiler；In order to avoid the flue dust in boiler enters to airduct 3 and sleeve pipe 2 results in blockage, in airduct 3
Integrally formed with being in coaxial connecting pole 7 with it, the outer wall of connecting pole 7 is externally threaded for upper surface, and screw thread connects on connecting pole 7
The bell jar 4 for being sheathed on whole airduct 3 is connected to, bell jar 4 is in the cylinder of under shed structure；The inside of bell jar 4 offers air-inlet cavity
14, the upper end of airduct 3 is inserted into air-inlet cavity 14；The company coordinated with the screw thread of connecting pole 7 is offered in the upper surface of the inwall of bell jar 4
Connect hole 8 so that both link position is located at the inside of bell jar 4, will not Prolonged exposure produce flue dust in boiler internal
Accumulate and affected by the high temperature.
Some exhaust vents 6 are uniformly offered along its circumferencial direction, in outer wall of the bell jar 4 close to lower surface in exhaust vent 6
Mandrel is in tilting down；The first refractory seals are embedded with reference to shown in Fig. 3, and in inwall of the bell jar 4 close to lower surface
Circle 9, the first high-temperature resistant seal ring 9 be graphite packing circle, when bell jar 4 rotates and moved down, the inwall of bell jar 4 and airduct 3
Outer wall fits, and makes in sealing to coordinate between the two by the first high-temperature resistant seal ring 9, so that air can only in air-inlet cavity 14
Boiler internal is transported to by exhaust vent 6.
Meanwhile in order to avoid the flue dust in boiler is entered between airduct 3 and sleeve pipe 2, it is embedded in the upper surface of shoulder 11
There is the second high-temperature resistant seal ring 12, the second high-temperature resistant seal ring 12 is also graphite packing circle, when bell jar 4 and the connection of connecting pole 7
Afterwards, the lower surface of bell jar 4 contacts at the second high-temperature resistant seal ring 12, so as to realize that sealing between the two coordinates.
Operation principle of the present utility model is：When installing cap structure, sleeve pipe 2 is placed in each mounting hole 13, and
And shoulder 11 is embedded in mounting groove 10, then sleeve pipe 2 is poured in air distribution plate 1；Therewith, bell jar 4 and connecting pole 7 are realized into spiral shell
Line connects, and at the same time, inwall of the bell jar 4 close to lower end fits in the outer wall of airduct 3 and realize that sealing between the two coordinates, clock
The lower surface of cover 4 contacts at the second high-temperature resistant seal ring 12, so as to realize the sealing property between bell jar 4 and shoulder 11；When need
When being dismantled to bell jar 4, only bell jar 4 need to be rotated.In air intake, outside First air passes through sleeve pipe 2 and fresh air inlet 5
And enter in air-inlet cavity 14, then boiler internal is fed through by exhaust vent 6, so that boiler internal normal combustion.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of blast cap of circulating fluidized bed boiler component, including air distribution plate（1）, be fixed on air distribution plate（1）Sleeve pipe（2）, it is fixed
In sleeve pipe（2）And and sleeve pipe（2）The airduct being coaxially disposed（3）, be sheathed on airduct（3）Bell jar（4）, the airduct（3）It is close
Upper end offers fresh air inlet（5）, the bell jar（4）The position of close lower end is provided with and fresh air inlet（5）The exhaust vent being connected
（6）, it is characterized in that：The airduct（3）Upper surface is provided with connecting pole（7）, the bell jar（4）It is threadedly connected to connecting pole（7）.
2. a kind of blast cap of circulating fluidized bed boiler component according to claim 1, it is characterized in that：The connecting pole（7）With
Airduct（3）In being coaxially disposed, the bell jar（4）Interior upper surface is provided with and connecting pole（7）The connecting hole coordinated in screw thread（8）.
3. a kind of blast cap of circulating fluidized bed boiler component according to claim 2, it is characterized in that：The connecting pole（7）With
Airduct（3）It is integrally formed.
4. a kind of blast cap of circulating fluidized bed boiler component according to claim 1, it is characterized in that：The airduct（3）Plug
And it is threadedly connected to sleeve pipe（2）.
5. a kind of blast cap of circulating fluidized bed boiler component according to claim 1, it is characterized in that：The bell jar（4）Inwall
It is embedded with the first high-temperature resistant seal ring（9）, first high-temperature resistant seal ring（9）Fit in airduct（3）Outer wall.
6. a kind of blast cap of circulating fluidized bed boiler component according to claim 1, it is characterized in that：The air distribution plate（1）If
Have and sleeve pipe（2）Correspond mounting groove（10）, described sleeve pipe（2）Outer wall is integrally formed with being embedded at mounting groove（10）Shoulder
（11）.
7. a kind of blast cap of circulating fluidized bed boiler component according to claim 6, it is characterized in that：The shoulder（11）Surface
It is embedded with the second high-temperature resistant seal ring（12）, the bell jar（4）Bottom surface contacts at the second high-temperature resistant seal ring（12）.
8. a kind of blast cap of circulating fluidized bed boiler component according to claim 1, it is characterized in that：The fresh air inlet（5）With
Exhaust vent（6）It is in axially to tilt down setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720952879.9U CN207179649U (en) | 2017-08-01 | 2017-08-01 | A kind of blast cap of circulating fluidized bed boiler component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720952879.9U CN207179649U (en) | 2017-08-01 | 2017-08-01 | A kind of blast cap of circulating fluidized bed boiler component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207179649U true CN207179649U (en) | 2018-04-03 |
Family
ID=61744128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720952879.9U Expired - Fee Related CN207179649U (en) | 2017-08-01 | 2017-08-01 | A kind of blast cap of circulating fluidized bed boiler component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207179649U (en) |
-
2017
- 2017-08-01 CN CN201720952879.9U patent/CN207179649U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20180403 Termination date: 20210801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |