CN2690750Y - Water cooling jacket type slag discharge pipe - Google Patents
Water cooling jacket type slag discharge pipe Download PDFInfo
- Publication number
- CN2690750Y CN2690750Y CN 200420026108 CN200420026108U CN2690750Y CN 2690750 Y CN2690750 Y CN 2690750Y CN 200420026108 CN200420026108 CN 200420026108 CN 200420026108 U CN200420026108 U CN 200420026108U CN 2690750 Y CN2690750 Y CN 2690750Y
- Authority
- CN
- China
- Prior art keywords
- slagging pipe
- discharge pipe
- urceolus
- slag discharge
- slagging
- Prior art date
- 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 - Lifetime
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Abstract
The utility model relates to a boiler accessory, in particular to a slag discharge pipe on the bottom of a hearth. The technical proposal is that an outer cylinder is arranged on the outside of the slag discharge pipe, a hollow cavity is formed between the outer cylinder and the slag discharge pipe; a water inlet and a water outlet are respectively connected with the upper end of the outer cylinder and the lower end of the outer cylinder, and the water inlet and the water outlet are respectively communicated with the hollow cavity. Sealed end covers are respectively connected between the upper end of the outer cylinder and the lower end of the outer cylinder and the slag discharge pipe, and the hollow cavity is formed between the sealed end cover, the outer cylinder and the slag discharge pipe. The temperature of the slag discharge pipe can be reduced by using the water cooling jacket type slag discharge pipe to avoid the slag discharge pipe burns out by high temperature, and thus, the service life of the water cooling jacket type slag discharge pipe can be extended.
Description
Technical field
The utility model relates to boiler accessories, specifically a kind of slagging pipe of burner hearth bottom.
Background technology
The slag that coal produces after the CFBB internal combustion is discharged from burner hearth bottom slagging pipe, because of the slagging pipe range phase is working under the hot conditions more than 850 ℃, so slagging Guan Junyong heat-resisting alloy steel pipe is made.
In actual use, the slagging pipe is roasting red by the high temperature furnace slag that moves in pipe, the work on the spot inclement condition; And the thermal expansion amount of heat-resisting alloy steel is different with the thermal expansion amount of water-cooling wall all around, the binding site that lower wall surface intersects on slagging pipe and water cooled wind chamber, fixedly the steel plate of slagging pipe deforms easily even tears, particularly when boiler adopts interruption deslagging mode to move, the slagging pipe is along with the variation that is interrupted deslagging, wall temperature also is periodic sharply to be changed, and the problems referred to above are more outstanding, and the slagging pipe life-span itself shortens greatly.
Summary of the invention
The purpose of this utility model is to design a kind of water-cooling jacket formula slagging pipe, to reduce the temperature of slagging pipe, avoids the slagging pipe to be burnt out by high temperature, thereby prolongs its service life.
According to design provided by the utility model, in the outside of slagging pipe urceolus is set, between urceolus and slagging pipe, form cavity, connect entery and delivery port respectively at the upper and lower end of urceolus, and entery and delivery port is communicated with cavity respectively.
Between the upper/lower terminal of urceolus and slagging pipe, be connected the end cap of sealing respectively, between end cap, urceolus and the slagging pipe of sealing, form cavity.Perhaps between the upper/lower terminal of urceolus and slagging pipe, be connected the end plate of sealing respectively, between end plate, urceolus and the slagging pipe of sealing, form cavity.After perhaps the upper/lower terminal of urceolus curves inwardly respectively and closes up, be connected, form the cavity of sealing betwixt with the slagging pipe.
The slagging pipe is installed in the air compartment of burner hearth, and the air distribution plate in the upper end of slagging pipe and the burner hearth is connected, and uniform blast cap is arranged on the air distribution plate, and the lower end of slagging pipe connects deslagging valve after stretching out air compartment.
Increase a urceolus in the former slagging pipe outside, form jacket type slagging pipe, still slag tap, allow water flowing in the interlayer between the inner/outer tube, utilize the recirculated water of boiler evaporating system itself to cool off inner core by inner core with former slagging pipe.Therefore the utility model has the advantages that: 1, the slagging pipe is subjected to the cooling of recirculated water, avoided that the slagging pipe is overheated to redden, the site environment problem is thoroughly solved, cooling water in the slagging pipe adopts the recirculated water of boiler evaporating system, its thermal expansion amount is with water-cooling wall is synchronous all around, do not produce extra stress, improve the functional reliability of slagging pipe greatly.2, because slagging is in control the cooling of recirculated water, and recirculated water all passes through water treatment, guarantees non-scaling on the tube wall, so tube wall temperature reduces greatly, originally the high chrome high-nickel heat-resisting allay material of Shi Yonging is also used common low alloy material thus instead and is substituted, and has saved high alloy material.3, can directly absorb the part heat of high temperature warm sludge.
Description of drawings
Fig. 1 is user mode figure of the present utility model.
Fig. 2 is for scheming A to view.
Fig. 3 is a kind of structure chart of the present utility model.
Fig. 4 is an another kind of structure chart of the present utility model.
Fig. 5 is another structure chart of the present utility model.
The specific embodiment
As shown in the figure: in the outside of slagging pipe 5 urceolus 10 is set, between urceolus 10 and slagging pipe 5, forms cavity, connect entery and delivery port 11,9 respectively at the upper and lower end of urceolus 10, and entery and delivery port 11,9 is communicated with cavity respectively.Slag is by the slagging tube drainage, and cooling water enters in the cavity through import 11, discharges through outlet 9 again, and heat is taken away, and to reduce the temperature of slagging pipe 5, prolongs the service life of slagging pipe 5.
Urceolus 10 can be multiple with the type of attachment of slagging pipe 5, enumerated 3 kinds of different situations below respectively, and these 3 kinds all respectively have characteristics:
1, between the upper/lower terminal of urceolus 10 and slagging pipe 5, is connected the end cap 8 of sealing respectively, between end cap 8, urceolus 10 and the slagging pipe 5 of sealing, forms cavity.This mode utilizes a prefabricated end cap 8 to connect, and is more convenient when welding, especially is fit to high-pressure boiler and superpressure boiler, but the making of end cap 8 is than following end plate type trouble.
2, between the upper/lower terminal of urceolus 10 and slagging pipe 5, be connected the end plate 12 of sealing respectively, between end plate 12, urceolus 10 and the slagging pipe 5 of sealing, form cavity.The processing of end plate 12 is more convenient, but is only applicable to low-pressure boiler.
3, after the upper/lower terminal of urceolus 10 curves inwardly respectively, be connected, form the cavity of sealing betwixt with slagging pipe 5.This mode does not need end cap, but the processing of sweep palpus special equipment is applicable to medium-pressure boiler.
Claims (5)
1, water-cooling jacket formula slagging pipe, it is characterized in that: urceolus (10) is set in the outside of slagging pipe (5), between urceolus (10) and slagging pipe (5), form cavity, upper and lower end at urceolus (10) connects entery and delivery port (11), (9) respectively, and entery and delivery port (11), (9) are communicated with cavity respectively.
2, slagging pipe according to claim 1 is characterized in that: be connected the end cap (8) of sealing respectively between the upper/lower terminal of urceolus (10) and slagging pipe (5), form cavity between end cap (8), urceolus (10) and the slagging pipe (5) of sealing.
3, slagging pipe according to claim 1 is characterized in that: be connected the end plate (12) of sealing respectively between the upper/lower terminal of urceolus (10) and slagging pipe (5), form cavity between end plate (12), urceolus (10) and the slagging pipe (5) of sealing.
4, slagging pipe according to claim 1 is characterized in that: after the upper/lower terminal of urceolus (10) curves inwardly respectively, be connected with slagging pipe (5), form the cavity of sealing betwixt.
5, slagging pipe according to claim 1, it is characterized in that: slagging pipe (5) is installed in the air compartment (4) of burner hearth (1), air distribution plate (3) in the upper end of slagging pipe (5) and the burner hearth (1) is connected, at the uniform blast cap of air distribution plate (3) (2), the lower end of slagging pipe (5) is stretched out air compartment (4) back and is connected deslagging valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026108 CN2690750Y (en) | 2004-04-06 | 2004-04-06 | Water cooling jacket type slag discharge pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026108 CN2690750Y (en) | 2004-04-06 | 2004-04-06 | Water cooling jacket type slag discharge pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2690750Y true CN2690750Y (en) | 2005-04-06 |
Family
ID=34670080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420026108 Expired - Lifetime CN2690750Y (en) | 2004-04-06 | 2004-04-06 | Water cooling jacket type slag discharge pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2690750Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927565A (en) * | 2012-11-28 | 2013-02-13 | 瓮福（集团）有限责任公司 | Ash discharge cooling device of circulating fluidized bed boiler |
| CN103557522A (en) * | 2013-11-19 | 2014-02-05 | 无锡东马锅炉有限公司 | Jacket type slag discharge pipe for boiler |
| CN104180367A (en) * | 2014-08-26 | 2014-12-03 | 西安热工研究院有限公司 | Slagging tube of fluidized-bed boiler |
| CN109827171A (en) * | 2019-03-15 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | A kind of petroleum coke combustion desulfurization fluidized-bed combustion boiler |
-
2004
- 2004-04-06 CN CN 200420026108 patent/CN2690750Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927565A (en) * | 2012-11-28 | 2013-02-13 | 瓮福（集团）有限责任公司 | Ash discharge cooling device of circulating fluidized bed boiler |
| CN103557522A (en) * | 2013-11-19 | 2014-02-05 | 无锡东马锅炉有限公司 | Jacket type slag discharge pipe for boiler |
| CN104180367A (en) * | 2014-08-26 | 2014-12-03 | 西安热工研究院有限公司 | Slagging tube of fluidized-bed boiler |
| CN109827171A (en) * | 2019-03-15 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | A kind of petroleum coke combustion desulfurization fluidized-bed combustion boiler |
| CN109827171B (en) * | 2019-03-15 | 2024-03-08 | 镇江东亚碳素焦化有限公司 | Fluidized bed boiler for petroleum coke combustion desulfurization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140406 Granted publication date: 20050406 |