CN102913901A - Wear-resistant device of water cooling pipe wall of circulation fluidized bed boiler - Google Patents
Wear-resistant device of water cooling pipe wall of circulation fluidized bed boiler Download PDFInfo
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- CN102913901A CN102913901A CN2012104438834A CN201210443883A CN102913901A CN 102913901 A CN102913901 A CN 102913901A CN 2012104438834 A CN2012104438834 A CN 2012104438834A CN 201210443883 A CN201210443883 A CN 201210443883A CN 102913901 A CN102913901 A CN 102913901A
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- water cooling
- baffles
- cooling tube
- wear
- cooling pipe
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Abstract
The invention discloses a wear-resistant device of a water cooling pipe wall of a circulation fluidized bed boiler. The wear-resistant device comprises water cooling pipes and a rib plate used for fixing the water cooling pipes; baffles are transversely arranged on the water cooling pipes which are vertical to an axial direction of the water cooling pipes; the baffles of the adjacent water cooling pipes are located in a same plane and are formed in one row; a gap is formed between any two adjacent baffles; a semicircular groove is arranged on each baffle body; the grooves are matched with the water cooling pipes in shape; supporting legs are arranged at both sides of the grooves of the baffles; the supporting legs are linked with the rib plate; a distance between the axial adjacent two rows of the baffles of the water cooling pipes is 1.3-1.5m; and a distance between the highest points of the grooves of the baffles and the upper end surfaces of the baffles is 20-25 mm. With the adoption of the device, the baffles arranged on the water cooling pipe walls can be used for preventing fuel from being in direct friction contact with the water cooling pipe walls, so that the wear service life of the water cooling pipe walls can be naturally prolonged. The wear-resistant device has the advantages of simple structure, convenience for installation, and good wear-resistant effect of the water cooling pipe walls.
Description
Technical field
The present invention relates to a kind of circulating fluidized bed boiler water-cooling tube wall shoe.
Background technology
CFBB is high because of temperature in the burner hearth, material particles is thick, wind speed is fast, causes the furnace water cooling tube wall to be worn comparatively fast, and wearing and tearing are main causes of boiler water-cooling tube wall booster, affect like this safe operation of boiler long period.In order to address this problem, mainly contain at present three kinds of anti-wearing methods: the one, build abrasion-proof and refractory material abrasionproof; The 2nd, lid wearing-resistant tile abrasionproof; The 3rd, adopt the door metal spray-coating method abrasionproof; But these three kinds of shoes all have its shortcoming:
(1), builds abrasion-proof and refractory material abrasionproof: affect the heat exchange of water-cooled tube wall, reduced boiler thermal output.
(2), lid wearing-resistant tile abrasionproof: the one, affect the heat exchange of water-cooled tube wall pipe, the reduction boiler thermal output; The 2nd, can form the concentration of local of water screen tube is washed away and caused the water-cooling wall booster.
(3), adopt the door metal spray-coating method abrasionproof: in the not vertical smooth place such as water screen tube butt weld, gusset weld, the scuff-resistant coating of spraying can be worn very soon, and loses the abrasionproof effect.
Summary of the invention
For the deficiencies in the prior art part, the present invention aims to provide a kind of circulating fluidized bed boiler water-cooling tube wall shoe, to guarantee under the prerequisite that does not affect Thermal Efficiency of Circulating Fluidized Bed Boiler, the water-cooled tube wall is realized effective abrasionproof protection.
Technical scheme of the present invention: a kind of circulating fluidized bed boiler water-cooling tube wall shoe, comprise water cooling tube and be used for the fixedly gusset of water cooling tube, deflection plate laterally is set on the water cooling tube axial perpendicular to water cooling tube, the deflection plate of adjacent water cooling tube is positioned at same plane and shape is in a row, wherein gapped between two deflection plates of arbitrary neighborhood, has semi-circular recesses on the deflection plate body, this groove and water cooling tube profile are complementary, deflection plate groove both sides are support foot, support foot connects with gusset, the water cooling tube axially distance between adjacent two row's deflection plates is 1.3-1.5 meters, and deflection plate groove peak is 20-25 millimeters to the distance of deflection plate upper surface.
Adopt said apparatus, the deflection plate that arranges at the water-cooled tube wall has stopped fuel directly and the CONTACT WITH FRICTION of water-cooled tube wall, naturally just improved the wear-out life of water-cooled tube wall, simultaneously owing to not increasing any overcoat between fuel and the water-cooled tube wall, this does not just affect heat exchange between fuel and the water-cooled tube wall, has guaranteed the heat absorption efficiency of boiler.
This apparatus structure is simple, and is easy for installation, and the abrasionproof of water-cooled tube wall is effective.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the baffle arrangement schematic diagram;
In the accompanying drawing: 1 water cooling tube, 2 gussets, 3 deflection plates, 4 grooves, 5 support foots.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Embodiment
Such as Fig. 1, Fig. 2, shown in Figure 3, the cold pipe 1 of the stove of recirculating fluidized bed pot is in a row arranged, water cooling tube 1 wall towards fuel forms a plane, on the water cooling tube 1 axial perpendicular to water cooling tube 1, deflection plate 3 is set laterally, the deflection plate 3 of adjacent water cooling tube 1 is positioned at same plane and shape is in a row, wherein gapped between adjacent two deflection plates 3 arbitrarily, for preventing the crimp of expanding with heat and contract with cold between the deflection plate 3, has semi-circular recesses 4 on deflection plate 3 bodies, this groove 4 is complementary with water cooling tube 1 profile, deflection plate 3 grooves 4 both sides are support foot 5, support foot 5 and gusset 2 weld connections, this groove 4 and water cooling tube 1 also weld connection, the water cooling tube 1 axially distance between adjacent two row's deflection plates 3 is 1.3 meters, deflection plate 3 grooves 4 peaks are 20 millimeters to the distance of deflection plate 3 upper surfaces, be that deflection plate 3 upper surfaces are 20 millimeters apart from minimum distance between the water-cooled tube wall, if deflection plate 3 upper surfaces apart from the distance between the water cooling tube 1 wall plane less than 20 millimeters, circulating fuel has part to contact with water cooling tube 1 wall, like this abrasionproof of water cooling tube 1 is weakened; If greater than 25 millimeters, circulating fuel can form local eddy currents at two row's deflection plates 3 apart from the distance between the water cooling tube 1 wall plane in deflection plate 3 upper surfaces, also can produce concentrated wear to water cooling tube 1.
Claims (1)
1. circulating fluidized bed boiler water-cooling tube wall shoe, comprise water cooling tube (1) and be used for the fixedly gusset (2) of water cooling tube (1), it is characterized in that: on the water cooling tube (1) axial perpendicular to water cooling tube (1), deflection plate (3) is set laterally, the deflection plate (3) of adjacent water cooling tube (1) is positioned at same plane and shape is in a row, wherein gapped between two deflection plates of arbitrary neighborhood (3), has semi-circular recesses (4) on deflection plate (3) body, this groove (4) is complementary with water cooling tube 1 profile, deflection plate groove (4) both sides are support foot (5), support foot (5) connects with gusset (2), water cooling tube (1) the axially distance between adjacent two row's deflection plates (3) is 1.3-1.5 meters, and deflection plate (3) groove (4) peak is 20-25 millimeters to the distance of deflection plate (3) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104438834A CN102913901A (en) | 2012-11-09 | 2012-11-09 | Wear-resistant device of water cooling pipe wall of circulation fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104438834A CN102913901A (en) | 2012-11-09 | 2012-11-09 | Wear-resistant device of water cooling pipe wall of circulation fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102913901A true CN102913901A (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104438834A Pending CN102913901A (en) | 2012-11-09 | 2012-11-09 | Wear-resistant device of water cooling pipe wall of circulation fluidized bed boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN102913901A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353111A (en) * | 2013-07-29 | 2013-10-16 | 刘欣 | Compound abrasion-proof device for water wall of circulating fluidized bed boiler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146105A (en) * | 1998-11-13 | 2000-05-26 | Mitsubishi Heavy Ind Ltd | Circulation fluidized bed combustion furnace and method of preventing wear of evaporation tube |
| CN2800074Y (en) * | 2005-04-16 | 2006-07-26 | 贾征琦 | Water cooling wall tube anti-wear device for circulating fluidized bed boiler |
| CN201003767Y (en) * | 2007-01-29 | 2008-01-09 | 张全胜 | Circulated fluid bed boiler vertical water cooling wall abrasive-proof groove |
| CN201032142Y (en) * | 2007-05-23 | 2008-03-05 | 郑州华宇耐磨制品有限公司 | Comb type wear prevention prerotation vane for boiler cooling wall pipes |
| CN202056866U (en) * | 2010-12-30 | 2011-11-30 | 华北电力大学 | Abrasion-resistant diversion device for water cooled wall of circulation fluidized bed boiler |
| CN202902263U (en) * | 2012-11-09 | 2013-04-24 | 瓮福（集团）有限责任公司 | Wear resisting device for walls of water cooling pipes of circulating fluidized bed boiler |
-
2012
- 2012-11-09 CN CN2012104438834A patent/CN102913901A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146105A (en) * | 1998-11-13 | 2000-05-26 | Mitsubishi Heavy Ind Ltd | Circulation fluidized bed combustion furnace and method of preventing wear of evaporation tube |
| CN2800074Y (en) * | 2005-04-16 | 2006-07-26 | 贾征琦 | Water cooling wall tube anti-wear device for circulating fluidized bed boiler |
| CN201003767Y (en) * | 2007-01-29 | 2008-01-09 | 张全胜 | Circulated fluid bed boiler vertical water cooling wall abrasive-proof groove |
| CN201032142Y (en) * | 2007-05-23 | 2008-03-05 | 郑州华宇耐磨制品有限公司 | Comb type wear prevention prerotation vane for boiler cooling wall pipes |
| CN202056866U (en) * | 2010-12-30 | 2011-11-30 | 华北电力大学 | Abrasion-resistant diversion device for water cooled wall of circulation fluidized bed boiler |
| CN202902263U (en) * | 2012-11-09 | 2013-04-24 | 瓮福（集团）有限责任公司 | Wear resisting device for walls of water cooling pipes of circulating fluidized bed boiler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353111A (en) * | 2013-07-29 | 2013-10-16 | 刘欣 | Compound abrasion-proof device for water wall of circulating fluidized bed boiler |
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Application publication date: 20130206 |