CN215765201U - Compound anti-eccentric wear device for water cooled wall of circulating fluidized bed boiler - Google Patents
Compound anti-eccentric wear device for water cooled wall of circulating fluidized bed boiler Download PDFInfo
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- CN215765201U CN215765201U CN202120610379.3U CN202120610379U CN215765201U CN 215765201 U CN215765201 U CN 215765201U CN 202120610379 U CN202120610379 U CN 202120610379U CN 215765201 U CN215765201 U CN 215765201U
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- fluidized bed
- circulating fluidized
- bed boiler
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Abstract
The utility model relates to a compound anti-eccentric wear device for a water cooling wall of a circulating fluidized bed boiler, belonging to the technical field of wear resistance of the water cooling wall of the circulating fluidized bed boiler; the technical problem to be solved is to provide the circulating fluidized bed boiler water wall eccentric wear prevention device which can effectively relieve the problem of single-side wear of the water wall pipe for a long time; the technical scheme for solving the technical problem is as follows: the compound anti-eccentric wear device for the water-cooled wall of the circulating fluidized bed boiler comprises a choke plate, a welding foot, a reinforcing rib, a ventilation opening and an air guide folding edge, wherein the welding foot is positioned in the middle of the choke plate, a welding groove is reserved at the edge of the welding foot, the cross section of the reinforcing rib is triangular, semicircular arc-shaped, trapezoidal or rectangular, the folding direction of the air guide folding edge is the direction with the reinforcing rib side, and the included angle between the air guide folding edge and the choke plate is 30-60 degrees; the included angle between the ventilation opening and the choke plate is 0-45 degrees; the wind-blocking plate, the welding feet, the reinforcing ribs, the ventilation openings and the wind guide folding edges are all integrally cast or formed by punching by heat-resistant steel materials.
Description
Technical Field
The utility model discloses a compound anti-eccentric wear device for a water cooling wall of a circulating fluidized bed boiler, and belongs to the technical field of wear resistance of the water cooling wall of the circulating fluidized bed boiler.
Background
As is well known, the water wall tube bank of the circulating fluidized bed boiler has transverse wear and longitudinal wear, the longitudinal wear can be effectively solved by generally arranging an anti-wear beam technology in the horizontal direction, the transverse wear is difficult to solve, and the currently known modes for preventing the transverse wear can be divided into three categories: 1. wear-resistant spraying; 2. wear-resistant tile protection; 3. flow guide plates. The single use of the several transverse abrasion prevention modes has the problems of long construction period, deformation and falling, insufficient abrasion prevention endurance, poor flow guide effect, infirm installation, poor deformation resistance, high overhaul cost and the like. Because of the various defects, the existing anti-abrasion mode is difficult to meet the requirement of the boiler for long-term stable operation, and a novel anti-abrasion device for preventing the eccentric abrasion of the water cooling wall of the circulating fluidized bed boiler, which has strong anti-deformation capability, good flow guide effect, firm installation and convenient later maintenance, is urgently needed, and can play an anti-abrasion effect for a long time in a maintenance-free state.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art, and aims to provide the novel eccentric wear prevention device for the water wall pipe of the circulating fluidized bed boiler, which can effectively relieve the problem of the transverse wear of the water wall pipe of the circulating fluidized bed boiler for a long time, and has the advantages of strong deformation resistance, good flow guide effect, firm installation and convenient later maintenance.
In order to solve the technical problems, the utility model adopts the technical scheme that: the compound eccentric wear preventing device for water cooling wall of circulating fluidized bed boiler includes wind blocking plate, welding legs, reinforcing ribs, ventilating opening and wind guiding hem.
The welding foot is located the intermediate position of choke plate, and welding groove is set up to welding foot border.
The cross section of the reinforcing rib can be triangular, semicircular arc, trapezoidal or rectangular.
The wind guide folding edge is folded in the direction of the side with the reinforcing ribs, and the included angle between the wind guide folding edge and the wind resistance plate is 30-60 degrees.
The included angle between the ventilation opening and the choke plate is 0-45 degrees.
The choke plate, the welding feet, the reinforcing ribs, the ventilation opening and the air guide folding edge are all formed by integrally casting or punching heat-resistant steel materials.
Compared with the prior art, the utility model has the following beneficial effects.
1. The choke plate and the wind guide folding edge have the comprehensive effect, and have the effect of reducing the flow velocity and the concentration of the transverse ash flow while dredging the transverse ash flow, thereby playing the role of reducing the transverse abrasion of the water wall tube of the circulating fluidized bed boiler.
2. The welding foot is connected with the single side of the choke plate, and when the wind-proof plate is installed, the welding foot can release welding stress, so that the installation quality can be better ensured, and the long-term use of the wind-proof plate is facilitated.
3. The arrangement of the reinforcing ribs improves the deformation resistance of the heat-resisting plate in a heated state, and is beneficial to long-term use of the heat-resisting plate.
4. The arrangement of the ventilation opening can effectively reduce the speed of the smoke flow.
5. The utility model arranges a plurality of rows of fins on the water wall tube bank in a ladder way, which can effectively solve the problem of transverse abrasion of the water wall tube, and has convenient installation and later maintenance and long duration of the abrasion-proof effect.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic top view of fig. 2.
Fig. 4 is a view showing a state of use of the present invention with reference to fig. 1.
Fig. 5 is a state of use of the present invention with reference to fig. 2.
In the figure: 1. a choke plate; 2. welding a pin; 3. reinforcing ribs; 4. a vent; 5. and (5) guiding wind and folding edges.
Detailed Description
As shown in fig. 1-3, the utility model comprises a choke plate 1, a pair of welding feet 2 is arranged in the middle of one side of the choke plate 1, three reinforcing ribs 3 are uniformly arranged on the choke plate 1, an air inlet 4 is arranged on the choke plate 1, and an air guide folding edge 5 is arranged on the other side of the choke plate 1.
The welding foot is located the intermediate position of choke plate, and welding groove is set up to welding foot border.
The cross section of the reinforcing rib can be triangular, semicircular arc, trapezoidal or rectangular.
The wind guide folding edge is folded in the direction of the side with the reinforcing ribs, and the included angle between the wind guide folding edge and the wind resistance plate is 30-60 degrees.
The included angle between the ventilation opening and the choke plate is 0-45 degrees.
The choke plate, the welding feet, the reinforcing ribs, the ventilation opening and the air guide folding edge are all formed by integrally casting or punching heat-resistant steel materials.
The construction scheme is as follows: as shown in FIGS. 4 and 5, the number of the arrangement columns of the utility model is determined according to the structural size of the tube rows of the water wall of the boiler, the wear conditions of different parts and relevant operating parameters. According to different transverse wear degrees of the water wall tubes, the utility model is arranged in a row every 1-4 water wall tubes, so that the folding direction of the air guide folding edge of the utility model is consistent with the transverse wear direction of the water wall tubes, the utility model and the water wall fins are arranged at an angle of 20-45 degrees, the welding pins of the utility model are welded with the water wall fins, a butt joint connection mode is adopted between the utility model, and 2 mm expansion gaps are reserved between the utility model. According to the transverse wear area of the water wall pipe, a plurality of rows of the utility model are arranged in stages, and an anti-wear mode for solving longitudinal wear is combined to form an integral anti-wear protection system of the membrane water wall of the circulating fluidized bed boiler.
Claims (6)
1. The compound eccentric wear prevention device for the water-cooled wall of the circulating fluidized bed boiler is characterized by comprising a choke plate (1), wherein a pair of welding feet (2) is arranged in the middle of one side of the choke plate (1), three reinforcing ribs (3) are uniformly arranged on the choke plate (1), an air opening (4) is formed in the choke plate (1), and an air guide folding edge (5) is arranged on the other side of the choke plate (1).
2. The double anti-eccentric device for the water wall of the circulating fluidized bed boiler according to claim 1, characterized in that: the welding foot (2) is located in the middle of the choke plate (1), and a welding groove is reserved at the edge of the welding foot (2).
3. The double anti-eccentric device for the water wall of the circulating fluidized bed boiler according to claim 1, characterized in that: the cross section of the reinforcing rib (3) can be triangular, semi-circular arc, trapezoidal or rectangular.
4. The circulating fluidized bed boiler water wall double type eccentric wear prevention device according to claim 1 or 3, characterized in that: the folding direction of the air guide folding edge (5) is the direction of the side with the reinforcing ribs (3), and the included angle between the air guide folding edge (5) and the wind-resistant plate (1) is 30-60 degrees.
5. The double anti-eccentric device for the water wall of the circulating fluidized bed boiler according to claim 1, characterized in that: the included angle between the ventilation opening (4) and the choke plate (1) is 0-45 degrees.
6. The circulating fluidized bed boiler water wall double eccentric wear prevention device according to claim 1 or 2 or 3 or 5, characterized in that: the wind-resistant plate (1), the welding feet (2), the reinforcing ribs (3), the ventilation openings (4) and the wind guide folding edges (5) are all integrally cast or formed by punching by heat-resistant steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610379.3U CN215765201U (en) | 2021-03-22 | 2021-03-22 | Compound anti-eccentric wear device for water cooled wall of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610379.3U CN215765201U (en) | 2021-03-22 | 2021-03-22 | Compound anti-eccentric wear device for water cooled wall of circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215765201U true CN215765201U (en) | 2022-02-08 |
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ID=80094371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120610379.3U Active CN215765201U (en) | 2021-03-22 | 2021-03-22 | Compound anti-eccentric wear device for water cooled wall of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215765201U (en) |
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2021
- 2021-03-22 CN CN202120610379.3U patent/CN215765201U/en active Active
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