CN209295102U - For the central tube of circulating fluidized bed boiler and its mounting device of central tube - Google Patents
For the central tube of circulating fluidized bed boiler and its mounting device of central tube Download PDFInfo
- Publication number
- CN209295102U CN209295102U CN201821948753.5U CN201821948753U CN209295102U CN 209295102 U CN209295102 U CN 209295102U CN 201821948753 U CN201821948753 U CN 201821948753U CN 209295102 U CN209295102 U CN 209295102U
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- China
- Prior art keywords
- segment
- central tube
- block
- bed boiler
- mounting rack
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model relates to a kind of fluidized-bed combustion boilers, disclose the mounting device of a kind of central tube for circulating fluidized bed boiler and its central tube, it is insufficient to solve existing central tube deformability, it is easy to happen the problem of booster happens, it for the central tube of circulating fluidized bed boiler and its mounting device of central tube includes cylinder that this is a kind of, the cylinder includes the first segment being plugged in cyclone separator and the second segment above first segment, type metal expansion joint is provided between the first segment and second segment, pass through flanged joint between type metal expansion joint and first segment and second segment, with enhancing central tube deformability, reduce booster probability, the advantages of ensureing safe operation of the boiler.
Description
Technical field
The utility model relates to a kind of fluidized-bed combustion boilers, in particular to for the central tube of circulating fluidized bed boiler and wherein
The mounting device of heart cylinder.
Background technique
High temperature cyclone separator is the critical component of circulating fluidized bed boiler, is mainly made of simplified and central tube, in
Heart cylinder is set at the top of cylinder on central axes, and upper part is connect with vertical shaft type flue, lower part is then inserted into separator main body inner cavity
Below burner hearth flue entrance.The gas-solid mixing flue gas that burner hearth comes out enters cyclone separator through flue entrance, forms two with one heart
Vortex, outer vortex is downward, and internal vortex is upward.Thicker particle leaves outer vortex and under the influence of centrifugal force along barrel
Fall the fast fluidized regime for returning to burner hearth as recycle stock, maintaining combustion chamber；During thinner particle is then passed through with internal vortex
Heart cylinder enters tail vertical well gas flue and discharges after dedusting again.
It is in place of the deficiencies in the prior art, when discharge flue gas concentration is higher, since flue-gas temperature is higher, according to heat expansion
Shrinkage principle, central tube is easy to happen deformation under high temperature action, and central tube in the prior art is only a complete steel
Pipe is constituted, and deformability is not strong, is easy the booster under high temperature influence, influences the normal operation of boiler.
Utility model content
The purpose of this utility model one is to provide a kind of central tube for circulating fluidized bed boiler, in existing
Heart tubular becomes scarce capacity, is easy to happen the problem of booster happens, and has enhancing central tube deformability, it is several to reduce booster
The advantages of rate, guarantee safe operation of the boiler.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of central tube for circulating fluidized bed boiler, including cylinder, the cylinder include being plugged in cyclone separator
Interior first segment and the second segment above first segment are provided with type metal expansion joint between the first segment and second segment, gold
Belong to and passes through flanged joint between expansion joint and first segment and second segment.
Using the above structure, passed through by the way that cylinder to be divided between first segment and second segment and first segment and second segment
Type metal expansion joint connects, and since type metal expansion joint has stronger elastic deformation ability, can adapt to when flue gas concentration mistake
Height causes in cylinder when the temperature is excessively high, type metal expansion joint expansion, deformation needed for buffering cylinder, to reduce cylinder due to temperature
The excessively high probability for leading to explosion, to ensure the safe operation of boiler；And then pass through flanged joint type metal expansion joint and first segment
And second segment, convenient for the installation of its type metal expansion joint.
Further preferably are as follows: the flanged joint includes ring flange one and ring flange two, ring flange one and ring flange two it
Between be fixed by bolts in together；It is respectively arranged on the ring flange one and two adjacent surface of ring flange and is mutually inserted the convex of cooperation
Block and groove.
Using the above structure, mating with groove by the convex block between ring flange one and ring flange two, enhance its method
Friction area between blue disk one and ring flange two reduces cigarette to enhance the leakproofness between ring flange one and ring flange two
The excessive probability of gas.
Further preferably are as follows: offer and communicate and for for weldering on the ring flange one and the peripheral wall of two adjacent surface of ring flange
The annular groove connect.
Using the above structure, first pass through bolt by ring flange one and ring flange two it is fixed after, then by welding by welding electrode
It is connected in annular groove, the contact area of weld seam Yu ring flange one and ring flange two can be increased, enhance ring flange one and ring flange
Stability and leakproofness between two.
Further preferably are as follows: an annulus block for installing with mounting rack, the circle are provided on the second segment outer wall
Ring block is arranged in up big and down small rotary table.
Using the above structure, by fixed round table-like annulus block on second segment outer wall, it is made to be placed on mounting rack
When upper, mounting base is abutted with annulus block inclined-plane, plays it upward and towards the active force on the inside of second segment to annulus block, keeps its right
While central tube is played a supporting role, ensure that annulus block is not easy to be detached from second segment.
The purpose of this utility model two is to provide a kind of mounting device for central cylinder of circulating fluid-bed boiler, solves
Existing central tube deformability is insufficient, is easy to happen the problem of booster happens, and has enhancing central tube deformability, drop
The advantages of low booster probability, guarantee safe operation of the boiler.
A kind of mounting device for central cylinder of circulating fluid-bed boiler, including mounting rack are offered on mounting rack
The through-hole of two sections of grafting, the through-hole internal diameter are greater than annulus block outer diameter, are provided with and annulus block on second segment on the mounting rack
The support ring that inclined-plane abuts.
Using the above structure: first mounting rack being fixed, then central tube is plugged in through-hole under upper, makes its second segment
On annulus block abutted with support ring inclined-plane, central tube is freely hung on mounting rack, makes its central tube under the effect of gravity,
It is fixed on mounting rack, when central tube deformation under high temperature action, central tube radially and axial deformation can increase its shape
Become range, reduces central tube and burst probability, ensure safe operation of the boiler.
Further preferably are as follows: the support ring includes two symmetrically arranged half round blocks, is offered on mounting rack for half round block
Along the sliding slot of second segment radial displacement, the actuator for driving half round block relative displacement is additionally provided on mounting rack.
Using the above structure, since in boiler running process, central tube service life is often more much lower than mounting rack, when
When central tube damages, generally require that central tube is carried out to replace or replaced according to actual needs than original central tube outer diameter size
Different central tube；When it replaces different size of central tube, between being regulated by actuator between opposite semicircle block
Away from, abut its half round block internal diameter can with the inclined-plane for adapting to annulus block according to practical center cylinder size adjusting size, it is right always
Central tube keeps supporting role.
Further preferably are as follows: the actuator includes the drive block for being fixed on half round block two sides, radially opens up along second segment
In on mounting rack for drive block grafting displacement driver slot, pass through two halves round block on drive block and with two drive blocks difference screw thread connect
The reverse-flighted screw connect, the reverse-flighted screw and two drive block threaded connection section hand of spiral are on the contrary, reverse-flighted screw rotation connects
It is connected on mounting rack.
Using the above structure, by rotate reverse-flighted screw, on reverse-flighted screw bidirectional helical respectively with the screw thread of drive block
Under mating reaction, drive block is driven to move forward and backward along driver slot, to drive half round block relative displacement, changes the interior of support ring
Diameter.
Further preferably are as follows: the caging bolt of limitation reverse-flighted screw rotation, the limit are additionally provided on the mounting rack
Bolt is radially threadedly connected on mounting rack along reverse-flighted screw and one end is abutted with reverse-flighted screw during rotation.
Using the above structure, the caging bolt being threadingly attached on mounting rack abuts radial abut to reverse-flighted screw and makees
With playing position-limiting action to reverse-flighted screw, prevent reverse-flighted screw from rotating in course of normal operation.
In conclusion the utility model has the following beneficial effects: by the way that cylinder is divided into first segment and second segment, and
It is connected between first segment and second segment by type metal expansion joint, since type metal expansion joint has stronger elastic energy of deformation
Power can adapt to cause in cylinder when the temperature is excessively high when flue gas concentration is excessively high, type metal expansion joint expansion, shape needed for buffering cylinder
Become, so that reducing cylinder leads to the probability of explosion since temperature is excessively high, to ensure the safe operation of boiler；And then pass through flange
Type metal expansion joint and first segment and second segment are connected, convenient for the installation of its type metal expansion joint.
Detailed description of the invention
Fig. 1 is the overall structure diagram of embodiment one；
Fig. 2 is the diagrammatic cross-section of flanged joint in Fig. 1；
Fig. 3 is the partial structural diagram of embodiment two；
Fig. 4 is the enlarged diagram in Fig. 3 at A.
In figure, 1, first segment；2, second segment；3, type metal expansion joint；4, ring flange one；5, ring flange two；6, convex block；7, circle
Annular groove；8, annulus block；9, actuator；91, drive block；92, driver slot；93, reverse-flighted screw；94, mounting base；95, caging bolt；
96, handwheel；10, mounting rack；11, half round block；12, sliding slot.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment 1: a kind of central tube for circulating fluidized bed boiler, as illustrated in fig. 1 and 2, including cylinder, cylinder include
First segment 1 and second segment 2,1 lower end of first segment are plugged in cyclone separator, and 2 upper end of second segment is connected with material issuance device, first segment
There is type metal expansion joint 3 by flanged joint between 1 and second segment 2；When flue gas concentration is excessively high, cause temperature in central tube higher
When, using the stronger deformability of expansion joint, pressure suffered by first segment 1 and second segment 2 is reduced, reduces first segment 1 and second
Section 2 bursts probability under heat expansion power.
Above-mentioned flanged joint includes ring flange 1 and ring flange 25, and ring flange 1 is fixed on the one of type metal expansion joint 3
End, ring flange 25 are fixed on first segment 1 or second segment 2 towards 3 one end of type metal expansion joint, and ring flange 1 is supported with ring flange 25
When connecing, ring flange 1, ring flange 25 and nut are passed through by four bolts being circumferentially uniformly arranged along ring flange and is cooperated, by method
Blue disk 1, ring flange 25 are fixed together, to realize the fixation of first segment 1, type metal expansion joint 3 and second segment 2.
In the present embodiment, ring flange 1 is towards being fixed with several circle convex blocks 6, ring flange 25 on the end face of ring flange 25
On offer groove for 6 grafting of convex block.
In the present embodiment, interconnected annular groove 7 is offered on ring flange 1 and 25 outer wall of ring flange, when bolt is solid
After determining ring flange 1 and ring flange 25, staff is sintered to welding rod in annular groove 7 by welding machine, realizes ring flange 1
With further fixing for ring flange 25.
In the present embodiment, it is further fixed on annulus block 8 on 2 outer wall of second segment, annulus block 8 round table-like is set in up big and down small
It sets, 8 outer wall tilt angle of annulus block is 45 °.
1 working principle of embodiment: when installation center cylinder, ring flange 1 on type metal expansion joint 3 is first passed through respectively with first
25 bolt of ring flange in section 1, second segment 2 is fixed, then is fully welded annular groove 7 by welding machine, realizes the fixation of central tube, then
Annulus block 8 is fully welded on second segment 2；By type metal expansion joint the last 3 deformability, deformation needed for buffering cylinder, thus
Reducing cylinder leads to the probability of explosion since temperature is excessively high.
Embodiment 2: as shown in Figures 3 and 4, the difference is that, including mounting rack 10, mounting rack 10 is solid with embodiment one
Due to ground, the through-hole for 2 grafting of second segment is offered on mounting rack 10, through-hole internal diameter is greater than 8 outer diameter of annulus block, mounting rack 10
Inside is additionally provided with the support ring abutted with 8 inclined-plane of annulus block.
Support ring is made of two symmetrically arranged half round blocks 11, and the sliding slot for the displacement of half round block 11 is offered on mounting rack 10
12,12 relative displacement along the chute of two halves round block 11 is driven by actuator 9, changes the spacing between half round block 11.
Above-mentioned actuator 9 includes drive block 91, driver slot 92, reverse-flighted screw 93 and handwheel 96, and drive block 91 is provided with
Four pieces of two sides for being individually fixed in two halves round block 11, driver slot 92 are opened in 10 two sides of mounting rack and are connected to sliding slot 12 and for driving
Block 91 moves forward and backward, the hand of spiral on reverse-flighted screw 93 is opposite and opposite screw thread respectively with the driving on two halves round block 11
Block 91 is threadedly coupled, and reverse-flighted screw 93 is provided with two two sides for being located at half round block 11, is fixed with installation on mounting rack 10
Seat 94,93 both ends of reverse-flighted screw are rotatablely connected with mounting base 94 respectively, and handwheel 96 is fixed with 93 one end of reverse-flighted screw, pass through rotation
Two reverse-flighted screws 93, reverse-flighted screw 93 and drive block 91 be threadedly engaged effect under, drive half round block, 11 relative displacement, change
Spacing between half round block 11.
In the present embodiment, caging bolt 95 is threaded in mounting base 94, caging bolt 95 is along 93 neck of reverse-flighted screw
Upper setting drives Limit screw one end to abut with reverse-flighted screw 93 and plays limit to reverse-flighted screw 93 by rotary stopper bolt 95
Effect.
2 working principle of embodiment: it when installation, first according to 8 outer diameter size of annulus block, rotates reverse-flighted screw 93 and drives half round block
11 relative displacements, make internal diameter and the same size of 8 outer diameter of annulus block between its two halves round block 11, then logical caging bolt 95 limit it is two-way
The rotation of screw rod 93；Central tube is passed through to 10 through-hole of mounting rack from top to bottom again, supports its annulus block 8 with half round block, 11 inclined-plane
It connects, its mounting rack 10 is made to play a supporting role central tube.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as within the protection scope of the present utility model all by the protection of Patent Law.
Claims (8)
1. a kind of central tube for circulating fluidized bed boiler, including cylinder, it is characterized in that: the cylinder includes being plugged in whirlwind
First segment (1) in separator and the second segment (2) being located above first segment (1), the first segment (1) and second segment (2) it
Between be provided with type metal expansion joint (3), pass through flanged joint between type metal expansion joint (3) and first segment (1) and second segment (2).
2. the central tube according to claim 1 for circulating fluidized bed boiler, it is characterized in that: flanged joint includes flange
Disk one (4) and ring flange two (5), are fixed by bolts in together between ring flange one (4) and ring flange two (5)；The flange
The convex block (6) and groove for being mutually inserted cooperation are respectively arranged on disk one (4) and ring flange two (5) adjacent surface.
3. the central tube according to claim 2 for circulating fluidized bed boiler, it is characterized in that: the ring flange one (4)
It communicates and with being offered on the peripheral wall of ring flange two (5) adjacent surface for the annular groove (7) for welding.
4. the central tube for circulating fluidized bed boiler according to claim 1 to 3, it is characterized in that: described
An annulus block (8) for installing with mounting rack (10) is provided on two sections of (2) outer walls, the annulus block (8) is in up big and down small
Rotary table setting.
5. a kind of mounting device for being used for central cylinder of circulating fluid-bed boiler as claimed in claim 4, it is characterized in that: including peace
It shelves (10), the through-hole for second segment (2) grafting is offered on mounting rack (10), the through-hole internal diameter is greater than annulus block (8) outside
Diameter is provided on the mounting rack (10) and annulus block (8) inclined-plane abuts on second segment (2) support ring.
6. the mounting device according to claim 5 for central cylinder of circulating fluid-bed boiler, it is characterized in that: the support
Ring includes two symmetrically arranged half round blocks (11), is offered on mounting rack (10) for half round block (11) along the radial position of second segment (2)
The sliding slot (12) of shifting is additionally provided with the actuator (9) for driving half round block (11) relative displacement on mounting rack (10).
7. the mounting device according to claim 6 for central cylinder of circulating fluid-bed boiler, it is characterized in that: the driving
Part (9) is supplied including being fixed on the drive block (91) of half round block (11) two sides, being radially opened on mounting rack (10) along second segment (2)
The driver slot (92) of drive block (91) grafting displacement passes through drive block (91) on two halves round block (11) and divides with two drive blocks (91)
The reverse-flighted screw (93) not being threadedly coupled, the reverse-flighted screw (93) and two drive blocks (91) threaded connection section hand of spiral phase
Instead, the reverse-flighted screw (93) is rotationally connected on mounting rack (10).
8. the mounting device according to claim 7 for central cylinder of circulating fluid-bed boiler, it is characterized in that: the installation
The caging bolt (95) of limitation reverse-flighted screw (93) rotation is additionally provided on frame (10), the caging bolt (95) is along reverse-flighted screw
(93) radial direction is threadedly connected on mounting rack (10) and one end is abutted with reverse-flighted screw (93) during rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821948753.5U CN209295102U (en) | 2018-11-24 | 2018-11-24 | For the central tube of circulating fluidized bed boiler and its mounting device of central tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821948753.5U CN209295102U (en) | 2018-11-24 | 2018-11-24 | For the central tube of circulating fluidized bed boiler and its mounting device of central tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209295102U true CN209295102U (en) | 2019-08-23 |
Family
ID=67645977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821948753.5U Expired - Fee Related CN209295102U (en) | 2018-11-24 | 2018-11-24 | For the central tube of circulating fluidized bed boiler and its mounting device of central tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209295102U (en) |
-
2018
- 2018-11-24 CN CN201821948753.5U patent/CN209295102U/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: 20190823 Termination date: 20211124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |