CN208418709U - CFB boiler flue gas recirculation central tube bracket cooling device - Google Patents
CFB boiler flue gas recirculation central tube bracket cooling device Download PDFInfo
- Publication number
- CN208418709U CN208418709U CN201821066332.XU CN201821066332U CN208418709U CN 208418709 U CN208418709 U CN 208418709U CN 201821066332 U CN201821066332 U CN 201821066332U CN 208418709 U CN208418709 U CN 208418709U
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- central tube
- bracket
- cooling device
- flue gas
- plate
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Abstract
The utility model is a kind of CFB boiler flue gas recirculation central tube bracket cooling device, at least two bracket cooling device is set on the outside of central tube siding, each bracket cooling device includes 2 bracket vertical plates, it is connected to the bracket bottom plate of its bottom, the internal closed plate for forming closed cavity after being closed, air inlet hole is set in the closed plate, air holes is set out on the corresponding central tube siding of closed cavity, bracket cooling device is arranged in the utility model outside central tube, cooling wind is passed through an inner flue, central tube force part is in middle low-temperature condition always, it solves the problems, such as easy to fall off without cooling central tube, for new-built unit, 4 sets of brackets need to be only installed, structure is simply easy for installation.
Description
Technical field
The utility model relates to CFB boilers, belong to field of dynamic engineering.
Background technique
CFB boiler center cylinder of cyclone separator is in high-temperature flue gas, although material is generally deposited using heat-resisting alloy steel
It is deforming and the problem that falls off, currently used method is: increasing support bracket quantity, each support bracket is made to be solely subjected to fraction
The gravity of central tube.
Utility model content
The technical issues of the utility model is solved is providing a kind of CFB boiler flue gas recirculation central tube bracket cooling
Device
Technological means used by the utility model is as described below.
At least two ox is arranged in a kind of CFB boiler flue gas recirculation central tube bracket cooling device on the outside of central tube siding
Leg cooling device, each bracket cooling device is internal after including 2 bracket vertical plates, bracket bottom plate and being closed to form closing sky
The closed plate of chamber is arranged air inlet hole in the closed plate, sets out air holes on the corresponding central tube siding of closed cavity.
Bracket bottom plate in every group is connected to 2 bracket vertical plate bottoms, and the four edges of closed plate are vertical respectively at 2 brackets
Plate, bracket bottom plate are connected with central tube siding, internal after connection to form closed cavity；Exhaust vent is set on central tube siding and leans on
The position of nearly bracket vertical plate and bracket bottom plate.
4 groups of bracket cooling devices are set outside the central tube siding, be arranged in same level and are evenly distributed.
Wall temperature measurement point is set on the central tube siding of closed cavity.
The flue gas being discharged at the top of from central tube is arranged by air-introduced machine to chimney, exports connection cooling wind pipeline in air-introduced machine,
The cooling wind pipeline other end is connected to the air inlet hole, and flue gas after cooling returns to central tube, and cooling duct road is also in order
Shut-off valve, air check valve, air register, flowmeter are set.
The utility model has the beneficial effects that bracket cooling device is arranged outside central tube, cooling wind is passed through an inner flue,
Central tube force part is in middle low-temperature condition always, solves the problems, such as easy to fall off without cooling central tube, for new-built unit, only needs
4 sets of brackets are installed, structure is simply easy for installation.
Detailed description of the invention
Fig. 1 is center cylinder of cyclone separator bracket cooled flue gas recirculating system schematic diagram.
Fig. 2 is the central tube schematic top plan view of the utility model.
Fig. 3 is the side structure schematic view of the central tube of the utility model.
Specific embodiment
The utility model protects a kind of CFB boiler flue gas recirculation central tube bracket cooling device, as shown in Figure 1, bracket
Vertical plate 2 is generally arranged at 1 outside of central tube siding, is bracket bottom plate 3 in the bottom of bracket vertical plate 2, usually 2 brackets of setting are vertical
Plate 2 and its bracket bottom plate 3 of bottom are used as one group, only do support and use.
As shown in Fig. 2 and Fig. 3, the key protection point of the utility model is: at least two ox being arranged on the outside of central tube siding 1
Leg cooling device, every group includes above-mentioned intrinsic 2 bracket vertical plates 2 and bracket bottom plate 3, also includes bracket closed plate 4, and four
While be connected on the lateral wall of 2 bracket vertical plates 2, the lateral wall of bracket bottom plate 3 and central tube siding 1, i.e., central tube siding 1,
Bracket closed plate 4, bracket vertical plate 2 and bracket bottom plate 3 will form a closed cavity 5 in bracket.
It is most preferred embodiment that 4 groups of bracket cooling devices are arranged outside central tube siding 1, is arranged in same level and flat
It is distributed.
A plurality of exhaust vents 11 are arranged in corresponding central tube siding 1 in closed cavity 5, are set to central tube siding 1
The upper position close to bracket vertical plate 2 and bracket bottom plate 3 is best.Air inlet hole 41 is set in bracket closed plate 4.
Wall temperature measurement point 6 is set on the central tube siding 1 of closed cavity 5.
As shown in Figure 1, the flue gas isolated from cyclone separator is discharged at the top of central tube 10, if by passing through after dry-cure
7 row of air-introduced machine is crossed to chimney, is exported in air-introduced machine 7 and connects setting cooling wind pipeline 8, in 8 other end of cooling wind pipeline connection
Processing and flue gas after cooling are returned to central tube and recycled by the air inlet hole 41 for stating cooling device.Also according to suitable on cooling wind pipeline 8
Shut-off valve 81, air check valve 82, air register 83, flowmeter 84 is arranged in sequence.
Bracket cooling device is arranged in the utility model outside central tube, and cooling wind is entered closed cavity 5 from air inlet hole 41
Cylinder inner flue is entered by exhaust vent 11 again afterwards, central tube force part is in middle low-temperature condition always, solves without cooling center
Cylinder problem easy to fall off only need to install 4 sets of brackets, structure is simply easy for installation for new-built unit.
Claims (6)
1. a kind of CFB boiler flue gas recirculation central tube bracket cooling device, which is characterized in that on the outside of central tube siding (1)
Be arranged at least two bracket cooling device, each bracket cooling device include 2 bracket vertical plates (2), bracket bottom plate (3) and by its
Inside forms the closed plate of closed cavity (5) after closing, air inlet hole (41) is arranged in the closed plate, in closed cavity is corresponding
Air holes (11) are set out on heart barrel plate (1).
2. CFB boiler flue gas recirculation central tube bracket cooling device as described in claim 1, which is characterized in that described every
Bracket bottom plate (3) in group is connected to 2 bracket vertical plate (2) bottoms, and the four edges of closed plate (4) are respectively at 2 bracket vertical plates
(2), bracket bottom plate (3) and central tube siding (1) connection, it is internal after connection to form closed cavity (5)；
The air inlet hole (41) is set on bracket closed plate (4), and exhaust vent (11) is set on central tube siding (1) close to ox
The position of leg vertical plate (2) and bracket bottom plate (3).
3. CFB boiler flue gas recirculation central tube bracket cooling device as described in claim 1, which is characterized in that in described
4 groups of bracket cooling devices are set outside heart barrel plate, be arranged in same level and are evenly distributed.
4. CFB boiler flue gas recirculation central tube bracket cooling device as described in claim 1, which is characterized in that closing
Wall temperature measurement point (6) are set on the central tube siding (1) of cavity (5).
5. the CFB boiler flue gas recirculation central tube bracket cooling device as described in Claims 1-4 is any, which is characterized in that
The flue gas being discharged at the top of from central tube is arranged by air-introduced machine (7) to chimney, exports connection cooling wind pipeline (8) in air-introduced machine (7),
Cooling wind pipeline (8) other end is connected to the air inlet hole (41), and flue gas after cooling returns to central tube.
6. CFB boiler flue gas recirculation central tube bracket cooling device as claimed in claim 5, which is characterized in that cooling wind
Shut-off valve (81), air check valve (82), air register (83), flowmeter (84) are also set in order on pipeline (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066332.XU CN208418709U (en) | 2018-07-05 | 2018-07-05 | CFB boiler flue gas recirculation central tube bracket cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066332.XU CN208418709U (en) | 2018-07-05 | 2018-07-05 | CFB boiler flue gas recirculation central tube bracket cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208418709U true CN208418709U (en) | 2019-01-22 |
Family
ID=65125685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821066332.XU Active CN208418709U (en) | 2018-07-05 | 2018-07-05 | CFB boiler flue gas recirculation central tube bracket cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208418709U (en) |
-
2018
- 2018-07-05 CN CN201821066332.XU patent/CN208418709U/en active Active
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