Hanging structure for heating surface in tower type boiler
By using a water-cooled wall medium cooling hanging structure in the tower boiler, the problem of poor steam cooling effect in the prior art is solved, and a safer and more efficient heating surface hanging is achieved, especially in high-temperature areas with significant cooling effect. promote.
Patent Information
- Application Number
- CN202420186685.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-26
AI Technical Summary
The existing tower boiler furnace heating surface hanging structure mainly uses superheated steam cooling hanging, which has poor cooling effect, especially in the high-temperature area below the furnace, which poses safety hazards.
The hanging structure of water-cooled wall medium is composed of vertical water-cooled wall pipes and horizontal water-cooled wall pipes. The hanging plates are arranged along the furnace width and deep directions to form arc grooves to hang the heat-receiving surface and gather at the water-cooled wall outlet. box for more efficient cooling.
It improves the safety and cooling effect of tower boiler hanging, especially in high-temperature areas, with smoke temperature above 1200℃, and uses a medium with a lower temperature to cool, which significantly improves the cooling effect of the hanging plate.
Smart Images
Figure CN222210286U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heating surface hanging structure in a tower boiler. Background Art
[0002] Tower boilers have many advantages over P-type boilers, such as no flue gas turning, uniform distribution, small steam temperature deviation, horizontal arrangement of heating surfaces, self-drainage, excellent standby and fast startup, simple structure and small footprint, etc. Therefore, in recent years, more and more domestic power plants have chosen tower furnaces. The heating surfaces in this type of furnace are arranged above the furnace and need to be suspended by hanging pipes with medium cooling.
[0003] The existing tower boiler heating surface hanging structure is a superheated steam cooling hanging structure. The steam cooling effect on the high-temperature surface hanging plate below the furnace is not as good as the water-cooled wall medium. This water-cooled wall medium cooling hanging provides a safer hanging structure for the tower boiler. Summary of the invention
[0004] The utility model aims to provide a heating surface hanging structure in a tower boiler.
[0005] The above purpose is achieved through the following technical solutions:
[0006] A heating surface hanging structure in a tower boiler furnace comprises: a water-cooled wall medium cooling hanging pipe, wherein the water-cooled wall medium cooling hanging pipe is composed of a horizontal pipe pulled out of the vertical water-cooled wall furnace and a vertical hanging pipe pulled out of the water-cooled wall furnace, two adjacent water-cooled wall medium cooling hanging pipes are connected by a hanging plate, an arc groove is formed on the hanging plate, and the heating surface pipe is arranged on the arc groove.
[0007] The tower boiler furnace heating surface hanging structure, the water-cooled wall pulls out the vertical hanging pipe in the furnace and arranges a certain number of rows along the furnace width and furnace depth according to the heating surface pitch. When passing through the heating surface, a hanging plate is welded on it to hang the heating surface.
[0008] In the tower boiler furnace heating surface hanging structure, a group of water-cooled wall vertical hanging pipes are pulled out of the furnace and collected at the water-cooled wall outlet header.
[0009] Beneficial effects of the utility model:
[0010] 1. The utility model adopts the method of extracting part of the pipes at a suitable height of the vertical water-cooled wall, and arranging the extracted water-cooled wall pipes in a certain number of rows according to the pitch of the heating surface along the furnace width and furnace depth. When passing through the heating surface, a hanging plate is welded on it to hang the heating surface, so that the hanging of the tower boiler is safer.
[0011] 2. The utility model adopts the method of extracting some pipes at a suitable height of the vertical water-cooled wall, and arranging a certain number of rows of the extracted water-cooled wall pipes along the furnace width and furnace depth according to the pitch of the heating surface. When passing through the heating surface, a hanging plate is welded on it to hang the heating surface. Finally, all the hanging pipes form a ceiling pipe and then gather at the water-cooled wall outlet header. The medium temperature in the hanging pipe is low, and the cooling effect of the hanging plate is better, especially the hanging plate of the high-temperature heating surface under the furnace is exposed to the high-temperature flue gas, where the flue gas temperature is as high as 1200℃ or more, and it is safer to cool with a lower temperature medium. This structure can better meet this requirement. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Attached Figure 1 It is a structural schematic diagram of the utility model.
[0013] Attached Figure 2 Yes Figure 1 AA section view.
[0014] Attached Figure 3 Yes Figure 1 Top view of the .
[0015] In the figure: 1. Water-cooled wall medium cooling hanging pipe, 2. Vertical water-cooled wall pulled out of the horizontal pipe in the furnace, 3. Water-cooled wall pulled out of the vertical hanging pipe in the furnace, 4. Hanging plate, 5. Water-cooled wall outlet header, 6. Ceiling pipe, 7. Heating surface in the furnace, 8. Heating surface pipe, 9. Side water-cooled wall, 10. Front water-cooled wall, 11. Rear water-cooled wall. DETAILED DESCRIPTION Example
[0016] A heating surface hanging structure in a tower boiler furnace, which comprises: a water-cooled wall medium cooling hanging pipe 1, the water-cooled wall medium cooling hanging pipe is composed of a horizontal pipe 2 and a vertical hanging pipe 3 pulled out of the water-cooled wall furnace, two adjacent water-cooled wall medium cooling hanging pipes are connected by a hanging plate 4, an arc groove is provided on the hanging plate, and a heating surface pipe 8 is arranged on the arc groove. The vertical hanging pipes pulled out of the water-cooled wall furnace are arranged in a certain number of rows according to the pitch of the heating surface along the furnace width and furnace depth, and the hanging plates are welded on them to hang the heating surface when passing through the heating surface. A group of the vertical hanging pipes pulled out of the water-cooled wall furnace are collected in the water-cooled wall outlet header 5. Example
[0017] A tower boiler furnace heating surface hanging structure, which comprises: a vertical water-cooled wall, a water-cooled wall medium cooling hanging pipe (including a vertical water-cooled wall pulled out of a furnace horizontal pipe and a water-cooled wall pulled out of a furnace vertical hanging pipe), a water-cooled wall outlet header, and a ceiling pipe to form a hanging structure for hanging the tower furnace heating surface. This structure uses a part of the pipes to be pulled out of the vertical water-cooled wall, and arranges a certain number of rows according to the heating surface pitch along the furnace width and furnace depth. When passing through the heating surface, a hanging plate is welded on it to hang the heating surface, and finally all the hanging pipes are collected at the water-cooled wall outlet header. This structure provides a water-cooled wall medium cooling hanging method for tower boiler design.
Claims
1. A tower boiler heating surface hanging structure, comprising: The water-cooled wall medium cooling hanging pipe is characterized in that: the water-cooled wall medium cooling hanging pipe is composed of a horizontal pipe pulled out of the vertical water-cooled wall furnace and a vertical hanging pipe pulled out of the water-cooled wall furnace, and two adjacent water-cooled wall medium cooling hanging pipes are connected by a hanging plate, and the hanging plate is provided with an arc groove, and a heating surface pipe is arranged on the arc groove.
2. The tower boiler heating surface hanging structure according to claim 1 is characterized in that: The vertical hanging pipes in the water-cooled wall are arranged in a certain number of rows along the furnace width and furnace depth according to the pitch of the heating surface. When passing through the heating surface, hanging plates are welded on them to hang the heating surface.
3. The tower boiler heating surface hanging structure according to claim 1 is characterized in that: A group of the water-cooled wall vertical hanging pipes are pulled out of the furnace and collected at the water-cooled wall outlet header.