CN217584501U - Smoke-isolating device in boiler flue - Google Patents
Smoke-isolating device in boiler flue Download PDFInfo
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- CN217584501U CN217584501U CN202123050829.7U CN202123050829U CN217584501U CN 217584501 U CN217584501 U CN 217584501U CN 202123050829 U CN202123050829 U CN 202123050829U CN 217584501 U CN217584501 U CN 217584501U
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- stainless steel
- limiting plate
- smoke
- boiler
- flue
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Abstract
The utility model discloses a smoke baffle device in boiler flue, including corrosion resistant plate, coiled pipe bottom is provided with the limiting plate in the flue, the limiting plate passes through connecting device and is connected fixedly with corrosion resistant plate. The device adopts a vertical curtain type structure, is convenient to install and disassemble, effectively prevents a flue gas channel between a convection heating surface and an ash bucket from being formed, and improves the heat exchange efficiency of the heating surface; meanwhile, the expansion of the boiler is absorbed, the operation of the boiler is stabilized, and the failure rate of the existing smoke baffle is effectively reduced.
Description
Technical Field
The utility model relates to a separate the cigarette device, especially relate to a separate cigarette device suitable for boiler flue is inside.
Background
In the horizontal grate waste incineration boiler, a plurality of groups of convection heating surfaces are arranged in a horizontal flue, a heat-insulating ash bucket hung at the lower part of a wrapping wall is arranged at the lower part of the horizontal flue, when the convection heating surfaces are arranged in a small container structure, a smoke channel which is through from front to back exists between the lower part of the convection heating surfaces and the heat-insulating ash bucket, and the smoke can be prevented from flowing to a lower space only by adopting certain isolation measures. Traditional isolated measure is single steel sheet structure, and this structure will have the steel sheet of strengthening rib and weld in the inboard trompil folded plate of wrap wall through the fastener and be connected, and the lower part supports in a belt and hangs welding on the steel sheet of hanging the pipe channel steel in the ash bucket. When the heat insulation material is poured on the surface, more nails need to be welded, and the construction is complicated; when the horizontal flue is wide, even the inner arch is contacted with a convection heating surface, so that the metal on the heating surface is abraded and cracked. After the boiler runs for a long time, due to the reasons of abrasion, corrosion and the like, the fasteners and the folded plates on the two sides lose the connecting effect, so that the smoke baffle plates collapse, and the safe running of the boiler is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the construction of isolating steel plates in the horizontal flue is complicated, the deformation inner arch is excessively heated, and the abrasion corrosion leads to the defects of collapse and the like.
In order to solve the technical problem, the utility model discloses a smoke isolation device in boiler flue, including corrosion resistant plate, the coiled pipe bottom is provided with the limiting plate in the flue, the limiting plate passes through connecting device and is connected fixedly with corrosion resistant plate.
According to the technical scheme, the bottom of each group of the serpentine tubes is provided with the limiting plate, the adjacent limiting plates are fixedly connected with the same stainless steel plate, and a gap is reserved between the adjacent stainless steel plates.
According to the further optimization of the technical scheme, the limiting plate is provided with a clamping groove, and the limiting plate is clamped on the coiled pipe through the clamping groove.
According to the technical scheme, the connecting device comprises a pin shaft and a split pin, round holes are formed in the limiting plate, a waist round hole is formed in the stainless steel plate, and the pin shaft penetrates through the round holes and the waist round hole and is fixed through the split pin.
According to the further optimization of the technical scheme, the stainless steel plate extends into the ash bucket.
The smoke isolating device in the boiler flue of the utility model adopts a vertical curtain type structure, is convenient to install and disassemble, effectively prevents the formation of a smoke channel between the convection heating surface and the ash bucket, and improves the heat exchange efficiency of the heating surface; meanwhile, the expansion of the boiler is absorbed, the operation of the boiler is stabilized, and the failure rate of the existing smoke baffle is effectively reduced.
Drawings
Fig. 1 is a schematic structural view of a smoke barrier in a boiler flue, and an arrow indicates a smoke flow direction.
FIG. 2 is a schematic side view of a smoke barrier in a flue of a boiler.
Fig. 3 is an enlarged view of the joint of the limiting plate and the stainless steel plate.
Fig. 4 is a side view of the connecting device.
In the figure: 1-a limiting plate, 2-a stainless steel plate, 3-a connecting device, 4-a pin shaft, 5-an open pin, 6-a horizontal flue, 7-a coiled pipe convection heating surface, 8-an ash bucket, 9-a smoke isolating device, 10-a clamping groove and 11-a gap.
Detailed Description
Referring to fig. 1 to 4, in a horizontal flue 6 of a horizontal grate waste incineration boiler, a coiled convection heating surface 7 is arranged, and a smoke isolating device 9 is arranged between the lower part of the convection heating surface and an ash bucket 8. The smoke insulation device 9 is composed of a limiting plate 1, a stainless steel plate 2 and a connecting device 3, and the connecting device 3 is composed of a pin shaft 4 and a cotter pin 5. The limiting plate 1 is provided with a clamping groove 10, the limiting plate 1 is clamped at the lower part of the coiled pipe through the clamping groove 10, and the limiting plate 1 is clamped at the lower part of each group of the coiled pipe. The adjacent limiting plates 1 are fixed with one stainless steel plate 2 through the connecting device 3, and a gap 11 is reserved between the adjacent stainless steel plates 2. The stainless steel plate 2 in the middle is of a rectangular structure, and the stainless steel plates 2 on the two sides are adaptively adjusted according to the ash bucket structure. The stainless steel plate 2 extends into the ash hopper 8.
The lower part of the limiting plate 1 is provided with a round hole, and the upper part of the stainless steel plate 2 is provided with a waist round hole which is horizontally arranged. The bolt 4 passes round hole and oval hole and connects limiting plate 1 and corrosion resistant plate 2, and the rethread split pin is fixed with both locks. The limiting plate 1 is made of stainless steel.
The working principle is as follows:
the smoke isolating device 9 is assembled between the coiled pipe convection heating surface 7 and the ash bucket 8 in the horizontal flue and is used for isolating smoke and preventing a smoke channel from being generated to influence the heat exchange of the convection heating surface. When the smoke is washed from front to back, the smoke cannot pass through the smoke isolating device 9 and naturally turns to the coiled pipe convection heating surface 7 with relatively low resistance. Because the smoke insulation device 9 is positioned in the furnace, the smoke insulation device can expand towards two sides after being heated. A gap 11 is left between the stainless steel plates 2, so that the self expansion amount can be absorbed; on the other hand, the stainless steel plate 2 and the adjacent limiting plate 1 are arranged in a traction manner, so that a traction whole can be formed, and the stability of the structure is ensured.
Claims (4)
1. The smoke isolating device in the boiler flue comprises a stainless steel plate and is characterized in that a limiting plate is arranged at the bottom of a coiled pipe in the flue, a clamping groove is formed in the limiting plate, the limiting plate is clamped on the coiled pipe through the clamping groove, and the limiting plate is fixedly connected with the stainless steel plate through a connecting device.
2. The smoke barrier in a boiler flue of claim 1, wherein: and the bottom of each group of the serpentine pipes is provided with a limiting plate, the adjacent limiting plates are fixedly connected with the same stainless steel plate, and a gap is reserved between the adjacent stainless steel plates.
3. The smoke barrier in a boiler flue of claim 2, wherein: the connecting device comprises a pin shaft and a cotter pin, round holes are formed in the limiting plates, waist round holes are formed in the stainless steel plates, and the pin shaft penetrates through the round holes and the waist round holes and is fixed through the cotter pin.
4. A smoke barrier in a boiler flue as claimed in claim 3 wherein: the stainless steel plate extends into the ash bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123050829.7U CN217584501U (en) | 2021-12-07 | 2021-12-07 | Smoke-isolating device in boiler flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123050829.7U CN217584501U (en) | 2021-12-07 | 2021-12-07 | Smoke-isolating device in boiler flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217584501U true CN217584501U (en) | 2022-10-14 |
Family
ID=83525107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123050829.7U Active CN217584501U (en) | 2021-12-07 | 2021-12-07 | Smoke-isolating device in boiler flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217584501U (en) |
-
2021
- 2021-12-07 CN CN202123050829.7U patent/CN217584501U/en active Active
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