CN203223911U - Fixing structure for fixing powdered coal burner and water-cooled wall together - Google Patents
Fixing structure for fixing powdered coal burner and water-cooled wall together Download PDFInfo
- Publication number
- CN203223911U CN203223911U CN 201320173814 CN201320173814U CN203223911U CN 203223911 U CN203223911 U CN 203223911U CN 201320173814 CN201320173814 CN 201320173814 CN 201320173814 U CN201320173814 U CN 201320173814U CN 203223911 U CN203223911 U CN 203223911U
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- water
- coal burner
- central area
- horizontal central
- rectangular frame
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Abstract
The utility model provides a fixed structure for mixing a powdered coal burner and a water-cooled wall together. The problem of swelling amount difference between a burner and a furnace cavity water-cooled wall does not need to be considered during design because a connecting structure can relieve the swelling amount of the furnace cavity water-cooled wall when the furnace cavity water-cooled wall swells down, so that the design is simple, the sealing shell of the powdered coal burner is difficult to deform, and the fuel supply of an integral boiler is ensured. The fixed structure comprises the powdered coal burner and the water-cooled wall, wherein a rectangular frame is welded at the installation position of the powdered coal burner; a corresponding rectangular fixed frame is welded on the water-cooled wall and corresponds to the installation position of the powdered coal burner, of is welded with. The fixed structure is characterized in that the periphery of the rectangular fixed frame is provided with positioning circular holes; the density of the positioning circular holes positioned in the horizontal central area of the rectangular fixed frame is higher than the density of the positioning circular holes positioned in other areas; the rectangular frame is particularly welded through angle steel; and circular holes are arranged in the horizontal central area of the rectangular frame.
Description
Technical field
The utility model relates to the technical field of structures of pulverized-coal fired boiler, is specially the novel fixed structure of a kind of coal burner and water-cooling wall.
Background technology
The water-cooling wall upper end of existing large coal powder boiler is connected with drum by tedge, and whole water-cooling wall weight then is hung on the top board by derrick rig by the water-cooling wall upper collecting chamber.Because the water screen tube bending is less, swell increment is bigger, the ability of compensate for dilatation own is less, so the lower end is that can free wxpansion.In the prior art, coal burner is that the seal casinghousing by huge shape is welded to connect on water-cooling wall, when boiler water wall is heated back expansion downwards, burner is along with water-cooling wall moves down together, when the syndeton of design DC burner and water-cooling wall, must take into full account the swell increment difference problem between burner and the furnace wall cooling, otherwise cause the distortion of the seal casinghousing of coal burner easily, and then influencing the supply of whole boiler oil, its design is loaded down with trivial details.
Summary of the invention
At the problems referred to above, the utility model provides the fixed structure of a kind of coal burner and water-cooling wall, it makes when furnace wall cooling expands downwards, syndeton can be alleviated the swell increment of loss of sheet thorax water-cooling wall, need not to consider again the swell increment difference problem between burner and the furnace wall cooling when making design, make simplicity of design, the seal casinghousing of coal burner is not yielding, guarantees the fuel supply of whole boiler.
The fixed structure of a kind of coal burner and water-cooling wall, its technical scheme is such: it comprises coal burner, water-cooling wall, the installation site of described coal burner is welded with rectangular frame, described water-cooling wall is welded with corresponding rectangle fixed mount corresponding to the installation site of described coal burner, it is characterized in that: be provided with positioning round orifice around the described rectangle fixed mount, the positioning round orifice density of the horizontal central area of described rectangle fixed mount is higher than all the other regional positioning round orifice, described rectangular frame is specially the rectangular frame that angle steel is welded, the horizontal central area of described rectangular frame is provided with circular hole, and the position of described circular hole is corresponding to the position of the positioning round orifice of the horizontal central area of described rectangle fixed mount; Bolt is fastenedly connected circular hole, the positioning round orifice of the correspondence of horizontal central area respectively; The peripheral regions except horizontal central area of described rectangular frame is provided with mounting hole, and described mounting hole is vertically arranged; Bolt is fastenedly connected mounting hole, the positioning round orifice of the correspondence of the peripheral regions except horizontal central area respectively.
After adopting structure of the present utility model, because the horizontal central area of rectangular frame is provided with circular hole, the position of circular hole is corresponding to the position of the positioning round orifice of the horizontal central area of rectangle fixed mount; Bolt is fastenedly connected circular hole, the positioning round orifice of the correspondence of horizontal central area respectively; The peripheral regions except horizontal central area of rectangular frame is provided with mounting hole, and mounting hole is vertically arranged; Bolt is fastenedly connected mounting hole, the positioning round orifice of the correspondence of the peripheral regions except horizontal central area respectively, it makes burner be connected with the flange that is connected to of water-cooling wall, reduce boiler burner and burner adpting flange, i.e. stress between the rectangular frame in start-up course; And being connected to of burner and water-cooling wall slipped, syndeton can be alleviated the swell increment of loss of sheet thorax water-cooling wall, need not to consider again the swell increment difference problem between burner and the furnace wall cooling when making design, make simplicity of design, the seal casinghousing of coal burner is not yielding, guarantees the fuel supply of whole boiler.
Description of drawings
Fig. 1 is front view structural representation of the present utility model;
Fig. 2 be among Fig. 1 A to the structural representation of rectangular frame;
Fig. 3 be among Fig. 1 B to the structural representation of rectangle fixed mount.
The specific embodiment
See Fig. 1, Fig. 2, Fig. 3, it comprises coal burner 1, water-cooling wall 2, the installation site of coal burner 1 is welded with rectangular frame 3, water-cooling wall 2 is welded with corresponding rectangle fixed mount 4 corresponding to the installation site of coal burner 1, be provided with positioning round orifice 5 around the rectangle fixed mount 4, positioning round orifice 5 density of the horizontal central area of rectangle fixed mount 4 are higher than all the other regional positioning round orifice 5, rectangular frame 3 is specially the rectangular frame that angle steel is welded, the horizontal central area of rectangular frame 3 is provided with circular hole 6, and the position of circular hole 6 is corresponding to the position of the positioning round orifice 5 of the horizontal central area of rectangle fixed mount 4; Bolt 7 is fastenedly connected circular hole 6, the positioning round orifice 5 of the correspondence of horizontal central area respectively; The peripheral regions except horizontal central area of rectangular frame 3 is provided with mounting hole 8, and mounting hole 8 is vertically arranged; Bolt 7 is fastenedly connected mounting hole 8, the positioning round orifice 5 of the correspondence of the peripheral regions except horizontal central area respectively.
Claims (1)
1. the fixed structure of a coal burner and water-cooling wall, it comprises coal burner, water-cooling wall, the installation site of described coal burner is welded with rectangular frame, described water-cooling wall is welded with corresponding rectangle fixed mount corresponding to the installation site of described coal burner, it is characterized in that: be provided with positioning round orifice around the described rectangle fixed mount, the positioning round orifice density of the horizontal central area of described rectangle fixed mount is higher than all the other regional positioning round orifice, described rectangular frame is specially the rectangular frame that angle steel is welded, the horizontal central area of described rectangular frame is provided with circular hole, and the position of described circular hole is corresponding to the position of the positioning round orifice of the horizontal central area of described rectangle fixed mount; Bolt is fastenedly connected circular hole, the positioning round orifice of the correspondence of horizontal central area respectively; The peripheral regions except horizontal central area of described rectangular frame is provided with mounting hole, and described mounting hole is vertically arranged; Bolt is fastenedly connected mounting hole, the positioning round orifice of the correspondence of the peripheral regions except horizontal central area respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173814 CN203223911U (en) | 2013-04-09 | 2013-04-09 | Fixing structure for fixing powdered coal burner and water-cooled wall together |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173814 CN203223911U (en) | 2013-04-09 | 2013-04-09 | Fixing structure for fixing powdered coal burner and water-cooled wall together |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223911U true CN203223911U (en) | 2013-10-02 |
Family
ID=49250914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320173814 Expired - Lifetime CN203223911U (en) | 2013-04-09 | 2013-04-09 | Fixing structure for fixing powdered coal burner and water-cooled wall together |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234197A (en) * | 2013-04-09 | 2013-08-07 | 无锡华光锅炉股份有限公司 | Pulverized coal combustor and water wall fixed structure |
-
2013
- 2013-04-09 CN CN 201320173814 patent/CN203223911U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234197A (en) * | 2013-04-09 | 2013-08-07 | 无锡华光锅炉股份有限公司 | Pulverized coal combustor and water wall fixed structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 214028 No. 3 Chengnan Road, new Wu District, Jiangsu, Wuxi Patentee after: Wuxi Huaguang Environmental Protection Energy Group Co.,Ltd. Address before: 214028 No. 3 Chengnan Road, New District, Jiangsu, Wuxi Patentee before: WUXI HUAGUANG BOILER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |