CN207035174U - A kind of intermediate deck structure of boiler back end ductwork - Google Patents
A kind of intermediate deck structure of boiler back end ductwork Download PDFInfo
- Publication number
- CN207035174U CN207035174U CN201720634569.2U CN201720634569U CN207035174U CN 207035174 U CN207035174 U CN 207035174U CN 201720634569 U CN201720634569 U CN 201720634569U CN 207035174 U CN207035174 U CN 207035174U
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- China
- Prior art keywords
- dividing plate
- partition
- central dividing
- plate
- back end
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Abstract
The utility model discloses a kind of intermediate deck structure of boiler back end ductwork, it belongs to boiler plant field, including central dividing plate, central dividing plate is tiltedly mounted in boiler back end ductwork, and the top of central dividing plate, which is provided with, draws flue, and the lower section of central dividing plate, which is provided with, leads back flue, boiler back end ductwork is provided with angle steel, central dividing plate is provided with connecting hole, and central dividing plate is set to slotted eye by connecting hole and angle steel bolt connection, connecting hole.Central dividing plate includes first partition, second partition, the 3rd dividing plate, first partition above second partition junction with being provided with junction steel plate, first partition and the one of dividing plate of second partition weld with junction steel plate, another piece of dividing plate does not weld with junction steel plate, the utility model structure not only ensure that the fixation of central dividing plate, additionally it is possible to avoid flue and differential expansion problem caused by central dividing plate.
Description
Technical field
It the utility model is related to boiler plant field, and in particular to a kind of intermediate deck structure of boiler back end ductwork.
Background technology
Nitrogen oxides in the waste gas that boiler combustion at present is discharged mainly based on coal, during coal combustion, is main
One of source of atmospheric pollution, as country continues to increase to environmental requirement dynamics, energy-saving and emission-reduction and air contaminant treatment, ultralow row
It has been inexorable trend to put, and to meet requirements of the national standard, the boiler now run needs to carry out denitration transformation more.At present, domestic contrast
Ripe out of stock technology has SCR, SNCR, SCR+SNCR etc., and denitration is transformed generally along with the corresponding transformation of boiler body, wherein
SCR denitration is carried out generally outside stove, and this just needs to transform boiler back end ductwork, sets new flue gas to draw and lead back dress
Put, different according to boiler form, leading back position can be carried out from furnace side, can also be carried out after stove.
In conventional design, it is most of it is newly-designed lead back at flue be all guard board structure light boiler setting structure,
Central dividing plate is directly welded on the backplate of both sides, although can effectively fix, there is what central dividing plate can not expand to ask
Topic, can cause central dividing plate to deform in operation, and severe patient can cause the extruding rupture of two side guard plates, influence boiler safety.To some
Boiler, it is all that heavy type is laid bricks furnace wall structure to draw and lead back flue both sides, and central dividing plate can not be directly anchored on furnace wall, to just
Often installation is made troubles.
In view of the above-mentioned problems of the prior art, the design for many years of the utility model combination association area and warp is used
Test, be aided with too strong professional knowledge, there is provided a kind of intermediate deck structure of boiler back end ductwork, to overcome drawbacks described above.
The content of the invention
For the problems of in the prior art, a kind of central dividing plate of boiler back end ductwork provided by the utility model
Structure, it not only ensure that the fixation of central dividing plate, additionally it is possible to avoid flue and differential expansion problem caused by central dividing plate.
To achieve these goals, the technical solution adopted in the utility model is as follows：A kind of centre of boiler back end ductwork
Diaphragm structure, including central dividing plate, the central dividing plate are tiltedly mounted in boiler back end ductwork, the top of the central dividing plate
Provided with flue is drawn, the lower section of the central dividing plate, which is provided with, leads back flue, and the boiler back end ductwork is provided with angle steel, in described
Space bar is provided with connecting hole, and the central dividing plate is set to groove by connecting hole and the angle steel bolt connection, the connecting hole
Hole.
As preferable technical scheme, the boiler back end ductwork uses furnace wall, and the angle steel passes through swollen with the furnace wall
Swollen bolt connection.
As preferable technical scheme, the boiler back end ductwork uses backplate, and the angle steel welds with the backplate.
As preferable technical scheme, the central dividing plate includes first partition, second partition, the 3rd dividing plate, and described the
For one dividing plate with being provided with junction steel plate above the second partition junction, the first partition and the second partition are one of
Dividing plate welds with the junction steel plate, and another piece of dividing plate does not weld with the junction steel plate；
It also is provided with junction steel plate above the second partition and the 3rd dividing plate junction, the second partition and described
The 3rd one of dividing plate of dividing plate welds with the junction steel plate, and another piece of dividing plate does not weld with the junction steel plate.
As preferable technical scheme, between the first partition and second partition be provided with interval, the second partition with
It also is provided with being spaced between 3rd dividing plate.
The utility model is beneficial in that：
1. the utility model ensure that certain thermal expansion surplus, so as to keep away using the flute profile connecting hole on central dividing plate
Exempt from Air Leakage Into Boilers, ensure that the safe operation of boiler.
It is one of to be welded by junction steel plate 2. some dividing plates of the utility model composition central dividing plate connect two-by-two
Connect, another piece is not welded, and also ensure that the space that thermal expansion of the central dividing plate in another direction moves freely.
3. the utility model central dividing plate ensures its overall structural strength with boiler back end ductwork connected mode, avoid
Change to boiler flue.
Brief description of the drawings
Fig. 1 is a kind of central dividing plate schematic view of the mounting position of boiler back end ductwork；
Fig. 2 is the utility model and flue is the scheme of installation of furnace wall；
The installation B that Fig. 3 is the utility model with flue is furnace wall is to schematic diagram；
Fig. 4 is the utility model and flue is the scheme of installation of backplate；
Fig. 5 is a kind of central dividing plate front view of boiler back end ductwork；
Fig. 6 is a kind of central dividing plate top view of boiler back end ductwork；
Fig. 7 is enlarged drawing at a kind of central dividing plate I of boiler back end ductwork；
Fig. 8 is enlarged drawing at the II of a kind of central dividing plate of boiler back end ductwork.
In figure：1- leads back flue, 2- central dividing plates, 3- and draws flue, 4- boiler back end ductworks, 5- expansion bolts, 6- angles
Steel, 21- first partitions, 22- second partitions, the dividing plates of 23- the 3rd, 24- junction steel plates, 25- connecting holes.
Embodiment
For the ease of it will be appreciated by those skilled in the art that being further described below in conjunction with the accompanying drawings to the utility model.
As shown in figure 1, a kind of intermediate deck structure of boiler back end ductwork, including central dividing plate 2, central dividing plate 2 tilt
In boiler back end ductwork 4, the top of central dividing plate 2, which is provided with, draws flue 3, and the lower section of central dividing plate 2, which is provided with, leads back cigarette
Road 1, the utility model boiler back end ductwork 4 are provided with angle steel 6, as shown in Figure 2 and Figure 3, if boiler back end ductwork 4 uses furnace wall,
Angle steel 6 is connected with furnace wall by expansion bolt 5；As shown in figure 4, if boiler back end ductwork 4 uses backplate, angle steel 6 and backplate
Welding.
As shown in Fig. 6, Fig. 8, the utility model central dividing plate 2 is provided with connecting hole 25, and central dividing plate 2 passes through connecting hole 25
With the bolt connection of angle steel 6, connecting hole 25 is set to slotted eye, and toward during the thermal expansion of both sides, the connecting hole 25 ensure that necessarily central dividing plate 2
Thermal expansion surplus.
Specific embodiment：
As shown in figure 5, the utility model central dividing plate 2 includes first partition 21, second partition 22, the 3rd dividing plate 23, the
One dividing plate 21 with being provided with junction steel plate 24 above the junction of second partition 22, first partition 21 and second partition 22 it is one of every
Plate welds with junction steel plate 24, and another piece of dividing plate does not weld with junction steel plate 24, as shown in fig. 7, first partition 21 and second every
Interval is provided between plate 22, first partition 21 is welded with junction steel plate 24, and second partition 22 does not weld with junction steel plate 24；
Junction steel plate 24, the dividing plate of second partition 22 and the 3rd also are provided with above second partition 22 and the junction of the 3rd dividing plate 23
23 one of dividing plates weld with junction steel plate 24, and another piece of dividing plate does not weld with junction steel plate 24, the utility model second every
It also is provided with being spaced between the dividing plate 23 of plate 22 and the 3rd, second partition 22 welds with junction steel plate 24, and the 3rd dividing plate 23 is with being connected steel
Plate 24 does not weld.
It should be appreciated that the purposes of these embodiments is merely to illustrate the utility model and is not intended to limit of the present utility model
Protection domain.In addition, it should also be understood that, after technology contents of the present utility model have been read, those skilled in the art can be right
The utility model does various change, modification and/or variation, and all these equivalent form of values equally fall within right appended by the application will
Ask within the protection domain that book limited.
Claims (5)
1. a kind of intermediate deck structure of boiler back end ductwork, including central dividing plate, the central dividing plate are tiltedly mounted on boiler
In back-end ductwork, the top of the central dividing plate, which is provided with, draws flue, and the lower section of the central dividing plate, which is provided with, leads back flue, and it is special
Sign is：The boiler back end ductwork is provided with angle steel, and the central dividing plate is provided with connecting hole, and the central dividing plate passes through company
Hole and the angle steel bolt connection are connect, the connecting hole is set to slotted eye.
A kind of 2. intermediate deck structure of boiler back end ductwork according to claim 1, it is characterised in that：The boiler tail
Portion's flue uses furnace wall, and the angle steel is connected with the furnace wall by expansion bolt.
A kind of 3. intermediate deck structure of boiler back end ductwork according to claim 1, it is characterised in that：The boiler tail
Portion's flue uses backplate, and the angle steel welds with the backplate.
A kind of 4. intermediate deck structure of boiler back end ductwork according to claim 1, it is characterised in that：The middle interval
Plate includes first partition, second partition, the 3rd dividing plate, and the first partition is with being provided with connection above the second partition junction
Steel plate, the first partition and the one of dividing plate of the second partition weld with the junction steel plate, another piece of dividing plate and institute
Junction steel plate is stated not weld；
The second partition above the 3rd dividing plate junction with also being provided with junction steel plate, the second partition and the described 3rd
The one of dividing plate of dividing plate welds with the junction steel plate, and another piece of dividing plate does not weld with the junction steel plate.
A kind of 5. intermediate deck structure of boiler back end ductwork according to claim 4, it is characterised in that：Described first every
It is provided between plate and second partition between interval, the second partition and the 3rd dividing plate and also is provided with being spaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634569.2U CN207035174U (en) | 2017-06-02 | 2017-06-02 | A kind of intermediate deck structure of boiler back end ductwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634569.2U CN207035174U (en) | 2017-06-02 | 2017-06-02 | A kind of intermediate deck structure of boiler back end ductwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207035174U true CN207035174U (en) | 2018-02-23 |
Family
ID=61469654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720634569.2U Expired - Fee Related CN207035174U (en) | 2017-06-02 | 2017-06-02 | A kind of intermediate deck structure of boiler back end ductwork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207035174U (en) |
-
2017
- 2017-06-02 CN CN201720634569.2U patent/CN207035174U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20190602 |