CN205372504U - Perpendicular over heater fixing device of living beings circulating fluidized bed boiler - Google Patents
Perpendicular over heater fixing device of living beings circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN205372504U CN205372504U CN201520957073.XU CN201520957073U CN205372504U CN 205372504 U CN205372504 U CN 205372504U CN 201520957073 U CN201520957073 U CN 201520957073U CN 205372504 U CN205372504 U CN 205372504U
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- CN
- China
- Prior art keywords
- snakelike
- tube bank
- ceiling
- tube panel
- fluidized bed
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- 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
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a perpendicular over heater fixing device of living beings circulating fluidized bed boiler, the angle steel that connects firmly including the ceiling tube panel, with the ceiling tube panel, the snakelike tube bank of perpendicular over heater, its characterized in that: the upper end of snakelike tube bank all lies in ceiling tube panel top, and snakelike tube bank peripheral hardware in ceiling tube panel top has a sealed cowling, and the sealed cowling all welds rather than interior snakelike tube bank and angle steel and connects firmly. The utility model discloses can avoid mounting yin gaowen flue gas to receive the corruption, prevent that the over heater from coming off, improve the security.
Description
Technical field
This utility model relates to a kind of fixing device of vertical superheater, especially for the fixing device of vertical superheater of biomass recirculating fluidized bed boiler.
Background technology
Device fixed by the vertical superheater of existing CFBB, as shown in Figure 1 and Figure 2, including ceiling tube panel 7 and the angle steel 8 that ceiling tube panel 7 connects firmly, vertical superheater snakelike tube bank 9, be coupled to and each top elbow of snakelike tube bank 3 hang hoop 6, each top elbow is respectively positioned in the flue below ceiling tube panel 7, hang hoop 6 upper ends pass ceiling tube panel 7 with ceiling tube panel 7 outside angle steel 8 connect firmly.When this structure is for biological substance for combustion boiler, owing to biomass fuel produces more chlorine component, in flue, the chlorine component in high-temperature flue gas contacts with metal, all can cause corrosion.Research finds, rate of metal corrosion and metallic surface temperature have substantial connection.Hang hoop 6 and be different from superheater tube screen, have media flow in superheater tube screen pipe, tube wall temperature is had cooling effect, although that is superheater tube contacts with high-temperature flue gas, but cooled down by steam in the inner, therefore superheater tube is affected by high-temperature flue gas less, but hang hoop 6 and belong to structural member, how high flue-gas temperature have, how high its metallic surface temperature just have, and therefore, hanging in flue binds round 6 after a certain time of operation, it would appear that serious corrosion cause superheater to come off, its safety is poor.
Utility model content
For the technical problem of above-mentioned existence, this utility model provides a kind of vertical superheater of biomass recirculating fluidized bed boiler fixing device, it is avoided that fixture is corroded because of high-temperature flue gas, it is prevented that superheater comes off, improves safety.
In order to achieve the above object, device fixed by the vertical superheater of biomass recirculating fluidized bed boiler of the present utility model, snakelike tube bank including ceiling tube panel with the angle steel that ceiling tube panel connects firmly, vertical superheater, it is characterized in that: the upper end of described snakelike tube bank is respectively positioned on above ceiling tube panel, snakelike tube bank above ceiling tube panel is externally provided with seal closure, and seal closure all welds connect firmly with its interior snakelike tube bank and angle steel；
This utility model is by being placed in outside flue by each top elbow of vertical for coil superheater through ceiling tube panel, by seal closure, snakelike tube bank is fixed outside flue, so directly cancel and hang hoop, any metal fixing directly contacted with flue gas is not had in flue, fundamentally solve the flue gas corrosion problem of seal closure, can prevent superheater from coming off；Seal closure can prevent the leakage of flue gas；
Preferred as one, seal closure includes the comb plate, comb joint of two bendings, and the vertical section of two comb plate, comb joints tube bank snakelike with in it is welded and connected firmly, and the approach end welding of two comb plate, comb joints connects firmly；Seal closure two ends are all associated with angle steel；Two comb plate, comb joints weld with snakelike tube bank can increase linking intensity, and two angle steel can avoid ceiling tube panel to bear unbalance loading, improves safety.
In sum, this utility model is avoided that fixture is corroded because of high-temperature flue gas, it is prevented that superheater comes off, and improves safety.
Accompanying drawing explanation
Fig. 1 is the front view of the fixing device of the vertical superheater of existing CFBB.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the schematic diagram of this utility model embodiment.
Fig. 4 is the A place partial enlarged drawing of Fig. 3.
Fig. 5 is the left view of Fig. 4.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
As shown in Figures 3 to 5, device fixed by the vertical superheater of this biomass recirculating fluidized bed boiler, snakelike tube bank 3 including ceiling tube panel 1 with two angle steel 2 that ceiling tube panel 1 connects firmly, vertical superheater, the upper end of described snakelike tube bank 3 is respectively positioned on above ceiling tube panel, the vertical section of snakelike tube bank 3 above ceiling tube panel 1 is externally provided with seal closure 4, seal closure 4 includes the comb plate, comb joint 5 of two bendings, comb plate, comb joint 5 is equipped with several arc groove, the vertical section of the arc groove tube bank 3 snakelike with in it of two comb plate, comb joints 5 is welded and is connected firmly, and the approach end welding between two comb plate, comb joint 5 arc grooves connects firmly；The two ends of seal closure 4 connect firmly an angle steel 2 respectively；
The two ends of vertical superheater are connected through ceiling tube panel 1 with superheater header；This utility model is by being placed in outside flue by the snakelike tube bank 3 of vertical superheater through ceiling tube panel 1, by seal closure 4, snakelike tube bank is fixed outside flue, so directly cancel and hang hoop, any metal fixing directly contacted with flue gas is not had in flue, fundamentally solve the flue gas corrosion problem of seal closure 4, can prevent superheater from coming off；Seal closure 4 can prevent the leakage of flue gas；Two comb plate, comb joints 5 weld with the snakelike vertical section of tube bank 3, and its weld seam length can increase linking intensity, and shape is restrained 3 tops and is positioned at outside seal closure 4, saves again material, and the two ends of seal closure 4 are all associated with angle steel 2, ceiling tube panel 1 can be avoided to bear unbalance loading, improve safety.
Claims (2)
1. the fixing device of the vertical superheater of biomass recirculating fluidized bed boiler, snakelike tube bank including ceiling tube panel with the angle steel that ceiling tube panel connects firmly, vertical superheater, it is characterized in that: the upper end of described snakelike tube bank is respectively positioned on above ceiling tube panel, snakelike tube bank above ceiling tube panel is externally provided with seal closure, and seal closure all welds connect firmly with its interior snakelike tube bank and angle steel.
2. the fixing device of the vertical superheater of biomass recirculating fluidized bed boiler according to claim 1, it is characterized in that: described seal closure includes the comb plate, comb joint of two bendings, the vertical section of two comb plate, comb joints tube bank snakelike with in it is welded and is connected firmly, and the approach end welding of two comb plate, comb joints connects firmly；Seal closure two ends are all associated with angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957073.XU CN205372504U (en) | 2015-11-26 | 2015-11-26 | Perpendicular over heater fixing device of living beings circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957073.XU CN205372504U (en) | 2015-11-26 | 2015-11-26 | Perpendicular over heater fixing device of living beings circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205372504U true CN205372504U (en) | 2016-07-06 |
Family
ID=56260992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520957073.XU Expired - Fee Related CN205372504U (en) | 2015-11-26 | 2015-11-26 | Perpendicular over heater fixing device of living beings circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205372504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276559A (en) * | 2015-11-26 | 2016-01-27 | 华西能源工业股份有限公司 | Fixing device for vertical superheater of biomass circulating fluidized bed boiler |
-
2015
- 2015-11-26 CN CN201520957073.XU patent/CN205372504U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276559A (en) * | 2015-11-26 | 2016-01-27 | 华西能源工业股份有限公司 | Fixing device for vertical superheater of biomass circulating fluidized bed boiler |
| CN105276559B (en) * | 2015-11-26 | 2018-01-02 | 华西能源工业股份有限公司 | The vertical superheater fixing device of biomass recirculating fluidized bed boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160706 Termination date: 20181126 |