CN209196836U - A kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler - Google Patents
A kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler Download PDFInfo
- Publication number
- CN209196836U CN209196836U CN201821715346.XU CN201821715346U CN209196836U CN 209196836 U CN209196836 U CN 209196836U CN 201821715346 U CN201821715346 U CN 201821715346U CN 209196836 U CN209196836 U CN 209196836U
- Authority
- CN
- China
- Prior art keywords
- deflector
- fluidized bed
- bed boiler
- steam cycle
- built
- 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
Links
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model relates to supercritical circulating fluidized bed boilers, more particularly to a kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler, including vertically disposed welded plate and horizontally disposed deflector, the welded plate follows water screen tube, and vertical insertion is connected on hearth wall from top to bottom, the both ends of the deflector are respectively welded on two adjacent welded plates, several deflectors carry out closed loop welding in same level, form level deflector structure in entire hearth wall.The combination installation that the utility model passes through deflector and welding item; so that forming a water conservancy diversion safeguard structure in supercritical steam cycle Fluidized Bed Boiler; water-cooling wall in burner hearth can comprehensively be protected; prevent dust particles strike on water cooling tube; and the tooth form structure of deflector may make dust particles flowing velocity to decline; and it not will cause and flow to acute variation inside region, there is good abrasionproof effect, also stabilize furnace inner environment.
Description
Technical field
The utility model relates to supercritical circulating fluidized bed boilers, and in particular to a kind of supercritical steam cycle Fluidized Bed Boiler
Built-in deflector structure.
Background technique
Supercritical circulating fluidized bed boiler is by the mature technology of both circulating fluidized bed boiler and supercritical steam circulation
Combine, has been provided simultaneously with two advantages of inexpensive contamination control and high generation efficiency, wherein Combustion technology of circulating fluidized
With excellent environmental emission characteristic, the adaptability of inferior fuel and inexpensive contamination control ability be current other technologies without
What method was reached, and supercritical parameter steam circulation can be effectively improved the generating efficiency of steam circulation thermal power plant, be a kind of environment
Friendly technology.
The bed material of the compositions such as coal ash, unreacted lime stone, limestone desulfurization reaction product in circulating fluidized bed boiler
Fluidized state is under the action of the First air of feeding, coal grain, bed material and lime stone are entrained in burner hearth upwards by flue gas
Movement, will fall along inboard wall of burner hearth in the different height portions bulky grain of burner hearth, and the interior circulation of material be formed, under these are adherent
The material fallen will generate shearing collision to the water screen tube in boiler, cause the abrasion of water screen tube, and the water-cooling wall worn is difficult
To repair, water screen tube can only be replaced, so very expends time and cost.Water-cooling wall in supercritical circulating fluidized bed boiler
Equally face fluidization so, and cause waterwall tube cracking, but because supercritical circulating fluidized bed boiler volume compared with
Greatly, it is not easy to which fixed deflector, there is presently no in the technology that deflector is wherein arranged.
Summary of the invention
The solved the technical problems existing in the prior art of the utility model be supercritical circulating fluidized bed boiler how
The problem of deflector for having good diversion function and wear-resisting functions is set.
The utility model is that technical solution used by solving its technical problem is:
A kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler, including vertically disposed welded plate and level
The deflector of setting, the welded plate follows water screen tube, and vertical insertion is connected on hearth wall from top to bottom, the water conservancy diversion
The both ends of plate are respectively welded on two adjacent welded plates, several deflectors carry out closed loop welding in same level,
Level deflector structure is formd in entire hearth wall.
Further, the deflector is special-shaped strip metal plate, and one side is provided with the circle for adapting to water screen tube size
Arc fluting, the other side are provided with multiple groups tooth form item.
Preferably, each group of tooth form item corresponds to an arc groove, every group of number comprising the single tooth form item
Amount not more than three.
Further, the diameter of the size of the arc groove and water screen tube is adapted, and is stuck in the outer of water screen tube
Side, the quantity that the arc groove is arranged on monolithic deflector are no less than one.
Preferably, the spacing in the level deflector structure between every layer is identical.
Alternatively, the spacing in the level deflector structure between every layer is close step by step.
Possessed beneficial effect is the utility model compared with prior art: the utility model passes through deflector and welding
The combination of item is installed, so that a water conservancy diversion safeguard structure is formed in supercritical steam cycle Fluidized Bed Boiler, it can be by the water cooling in burner hearth
Wall comprehensively protects, and prevents dust particles strike on water cooling tube, and the tooth form structure of deflector may make dust
Particle Velocity decline, and not will cause and flow to acute variation inside region, there is good abrasionproof effect, also stabilize
Furnace inner environment；The utility model the easy installation of monolithic deflector and optimizes stability in process of deployment, and conveniently
Deflector structure carries out dismounting and change upon wear, saves manpower consumption；The utility model overall structure is simple, reduces
Installation difficulty, and deflector structure abrasion resistant effect is more preferably, has applied in 350,000 supercritical steam cycle Fluidized Bed Boilers, and has
There is good using effect.
Detailed description of the invention
Fig. 1 is schematic cross-section of the utility model in supercritical steam cycle Fluidized Bed Boiler；
Fig. 2 is the structural schematic diagram that the utility model is arranged on water-cooling wall；
Fig. 3 is the structural schematic diagram that the utility model monolithic deflector is installed on water-cooling wall；
Fig. 4 is the structural schematic diagram of monolithic deflector in the utility model；
In figure, 1 is hearth wall, and 2 be water screen tube, and 3 be deflector, and 4 be welded plate, and 5 be arc groove, and 6 be tooth form item.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
As shown in Fig. 1 ~ 4, a kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler, including vertically disposed weldering
Fishplate bar 4 and horizontally disposed deflector 3, the both ends of the deflector 3 are respectively welded on two adjacent welded plates 4, institute
Stating welded plate follows water screen tube 2 is vertical to be from top to bottom fixed on hearth wall 1, and set-up mode is insertion hearth wall
It is interior, it is special-shaped strip metal plate to the deflector 3, one side is provided with the arc groove 5 for adapting to 2 size of water screen tube,
Its other side is provided with multiple groups tooth form item 6, and each group of tooth form item corresponds to an arc groove, and every group includes single described
The quantity of tooth form item 6 is not more than three, and the size of the arc groove 5 and the diameter of water screen tube 2 are adapted, and are stuck in water
The outside of cold wall pipe 2 is contacted without welding therewith, and the tightness degree that they contact is the welded plate welded according to its both ends
With the insertion degree of hearth wall, the quantity that the arc groove 5 is arranged on monolithic deflector is no less than one.
When the utility model is installed, follow water screen tube is vertical to be from top to bottom embedded on hearth wall welded plate first
It is fixedly connected, is spaced between adjacent welded plate preset in the quantity and deflector of water screen tube in preset binding groove
The quantity of arc groove is identical, and deflector cooperation is then adjacent to the outer wall in water screen tube, arc groove and water screen tube phase
It cuts, and water conservancy diversion board ends are welded and fixed with corresponding welded plate, several deflectors carry out in same level
Closed loop welding, form one layer of deflector structure, then in layer be paved with entire hearth wall, the spacing between every layer is identical
Or it is close step by step；Stop dust particles to the impact of tube wall using the tooth form item on deflector and deflector, plays abrasionproof
Effect.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, any person skilled in the art are not departing within the scope of technical solutions of the utility model, when using the disclosure above
Technology contents make change or modify the equivalent embodiment of equivalent variations, but it is all without departing from technical solutions of the utility model
Content is still within the scope of the technical solutions of the present invention.
Claims (6)
1. a kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler, which is characterized in that including vertically disposed welding
Plate and horizontally disposed deflector, the welded plate follows water screen tube, and vertical insertion is connected to hearth wall from top to bottom
On, the both ends of the deflector are respectively welded on two adjacent welded plates, several deflectors in same level into
The welding of row closed loop, forms level deflector structure in entire hearth wall.
2. a kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler according to claim 1, which is characterized in that
The deflector is special-shaped strip metal plate, and one side is provided with the arc groove for adapting to water screen tube size, the other side
It is provided with multiple groups tooth form item.
3. a kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler according to claim 2, which is characterized in that
Each group of tooth form item corresponds to an arc groove, and every group of quantity comprising the single tooth form item is not more than three.
4. a kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler according to claim 2, which is characterized in that
The size of the arc groove and the diameter of water screen tube are adapted, and are stuck in the outside of water screen tube, on monolithic deflector
The quantity that the arc groove is arranged is no less than one.
5. a kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler described in any one according to claim 1 ~ 4,
It is characterized in that, the spacing in the level deflector structure between every layer is identical.
6. a kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler described in any one according to claim 1 ~ 4,
It is characterized in that, the spacing in the level deflector structure between every layer is close step by step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821715346.XU CN209196836U (en) | 2018-10-23 | 2018-10-23 | A kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821715346.XU CN209196836U (en) | 2018-10-23 | 2018-10-23 | A kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209196836U true CN209196836U (en) | 2019-08-02 |
Family
ID=67408818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821715346.XU Expired - Fee Related CN209196836U (en) | 2018-10-23 | 2018-10-23 | A kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209196836U (en) |
-
2018
- 2018-10-23 CN CN201821715346.XU patent/CN209196836U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103307617B (en) | Pneumatic dust cleaning device of boiler | |
| CN102588959B (en) | Gas-solid separator of recirculating fluidized bed boiler and boiler comprising same | |
| CN102913900B (en) | Band cooling chamber low-ratio biomass circulating fluidized bed boiler and pollutant catabolic gene method | |
| WO2015127836A1 (en) | Superheated steam boiler of horizontal circulating fluidized bed | |
| CN203349279U (en) | Pneumatic ash removal device of boiler | |
| CN105318535B (en) | A kind of single drum horizontal formula traveling-grate stoker sprays denitration corner tube boiler | |
| CN101776415A (en) | Combination deashing wear-resisting device of boiler | |
| CN103423738A (en) | Compact type circulating fluidized bed boiler for burning high sodium coal | |
| CN102537942B (en) | Low speed circulating fluidized bed and lower-heating-value waste gas mixed burning device and method | |
| CN201697136U (en) | Anti-gas-leakage external superheating device for waste incinerator of circulating fluidized bed | |
| CN203478209U (en) | Double-low type boiler capable of cleanly combusting high-alkali-metal coal | |
| CN209196836U (en) | A kind of built-in deflector structure of supercritical steam cycle Fluidized Bed Boiler | |
| CN202938321U (en) | Soot blower system of pulverized coal fired boiler | |
| CN209960522U (en) | Long-nozzle shock wave soot blower with cooling and soot deposition preventing functions | |
| CN106287686B (en) | Biomass recirculating fluidized bed boiler slag-draining device | |
| CN215294894U (en) | Discharge device for reducing carbon content in boiler bottom slag | |
| CN1312431C (en) | Sealed fluid back-feeder | |
| CN212283563U (en) | Denitration system suitable for biomass boiler | |
| CN103851610A (en) | Slag discharging device of circulating fluidized bed boiler | |
| CN103398371B (en) | A kind of two low type boiler using high basic metal coal | |
| CN204043191U (en) | A kind of single drum horizontal formula traveling-grate stoker spray denitration corner tube boiler | |
| CN203478218U (en) | Compact type circulating fluidized bed boiler capable of cleanly combusting high-sodium coal | |
| CN202470044U (en) | Co-burning device for low-speed fluidized bed and low calorific value waste gases | |
| CN105972584B (en) | A kind of high-efficiency environment friendly burning device of circulating fluidized bed and its combustion method | |
| CN205939114U (en) | High -efficient environmental protection circulating fluidized bed burner |
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: 20190802 Termination date: 20201023 |