CN1189592A - Laminated adjustable burning guarding belt - Google Patents
Laminated adjustable burning guarding belt Download PDFInfo
- Publication number
- CN1189592A CN1189592A CN97107949A CN97107949A CN1189592A CN 1189592 A CN1189592 A CN 1189592A CN 97107949 A CN97107949 A CN 97107949A CN 97107949 A CN97107949 A CN 97107949A CN 1189592 A CN1189592 A CN 1189592A
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- drive rod
- refractory heat
- mobile
- drive
- insulating pipe
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Abstract
An overlay type of adjustable combustion guard band is such an apparatus that it is arranged at sides of water-cooling wall tube in combustion box of boiler for controlling combustion efficiency. A fixed insulating refractory plate and three rows of mavable insulating refractory tubes divided into three layers are installed to a guide supporter. Said three layers of refractory tubes can move up or down along water cooling wall tubes under the control of drive motor, axle, chain and drive rod, regulating the area of combustion guard band.
Description
The present invention relates to boiler furnace, specifically refer to the burner hearth wall with refractory lining, refracto.
In coal-burning boiler, extensively adopt at present and in burner hearth, lay wall with refractory lining, refracto, to overcome the defective that makes combustion instability because of load and fuel change.But in the existing method of laying wall with refractory lining, refracto, wall with refractory lining, refracto is disposable laying, and area is immutable, and in case after laying, in service can't the adjustment, it is excessive to lay area, and when heavy-duty service or fuel were of fine quality, furnace temperature was too high, caused slagging scorification easily; Lay area such as too small, furnace temperature is low excessively under the shoddy situation of underload or fuel, is difficult to smooth combustion, and it is combustion-supporting that must throw oil this moment, proves absolutely that there is certain defective in the wall with refractory lining, refracto that fixedly lays, is difficult to adapt to and loads and fuel variations.
The objective of the invention is to propose a kind of laminated adjustable burning guarding belt, this adjustable burning guarding belt, be mounted in the burner hearth, and can be according to the work area of boiler load situation and fuel characteristic adjusting wall with refractory lining, refracto, to solve the adaptability of boiler, the minimum oil of not throwing of boiler is surely fired any load that load is reduced to customer requirements to fuel and load.When fuel characteristic variation or load descend when making the burner hearth internal combustion unstable, the area that can regulate wall with refractory lining, refracto improves temperature levels in the stove to reduce the caloric receptivity of stove internal heating surface, thus smooth combustion.Changed the character of fixedly laying wall with refractory lining, refracto so fully, for the design of boiler wall with refractory lining, refracto with use the progress that has brought a kind of initiative.
Present design is to construct a stacked refractory insulating layer that can stretch up and down in the outside of water screen tube, its topmost is a fixing outer refractory heat isolating plate, in several groups of movable fire resistant thermal insulation board groups of forming by hollow refractory heat-insulating pipe group or other sheet material of its next installation,, above-mentioned refractory heat-insulating pipe group or refractory heat isolating plate group then form the described stacked wall with refractory lining, refracto of a kind of the design up and down thereby can spurring it with wirerope or chain by motor-driven.
The design's stacked wall with refractory lining, refracto has following advantage:
1, because to have avoided throwing oil combustion-supporting, the combustion instability that has produced when having guaranteed to use the low value coal and the boiler unit security that causes are with topic;
2, improve when fuel characteristic, the ash fusion point step-down of coal when perhaps waiting a variety of causes to cause ash erosion because of boiler load is higher, can be regulated wall with refractory lining, refracto and change effective heat insulation area, suitably increase the caloric receptivity of water-cooling wall in the stove and reduce temperature levels in the stove, thereby eliminate the slagging scorification phenomenon.
3, can regulate wall with refractory lining, refracto and can keep accurate constant temperature combustion in the stove, thereby the efficiency of combustion can make underload the time is higher than or the efficiency of combustion when being substantially equal to rated load, has obvious energy-saving effect;
4, can regulate wall with refractory lining, refracto as a kind of auxiliary temperature adjustment means, can improve the steam temperature characteristic of superheater, make boiler in very low load range, keep specified steam temperature, improve the thermal efficiency of cycle of unit when underload;
Hot air temperature when 5, adjustable burning guarding belt can improve underload helps smooth combustion and improves efficiency of combustion, helps the drying of coal in the pulverized coal preparation system;
Exhaust gas temperature when 6, adjustable burning guarding belt can improve underload effectively prevents the cold end corrosion of back-end surfaces.
Details are as follows in conjunction with the accompanying drawings in the present invention,
Fig. 1 is the laminated adjustable burning guarding belt schematic diagram;
Fig. 2 is the A-A section of Fig. 1;
Fig. 3 is the B-B section of Fig. 2;
Fig. 4 is the two-tube schematic diagram of A-A section of Fig. 1;
Fig. 5 is another embodiment scheme schematic diagram of laminated adjustable burning guarding belt;
Fig. 6 is the D-D section of Fig. 5.
Reference numeral:
1, mobile refractory heat-insulating pipe 2, take-up device
3, drive rod 4, directive wheel
5, chain 6, guiding support
7, drive motors 8, electric machine support
9, water screen tube 10, fixing refractory heat isolating plate
11, support steel 12, drive rod chute
13, bearing block 14, rotating shaft
15, balance weight 16, mobile refractory heat isolating plate
As shown in the figure, side at the water screen tube 9 of boiler, the guiding guiding that has chute is housed supports 6, a fixedly refractory heat isolating plate 10 is arranged at the top in this guiding support 6, and this guiding support 6 is set up 1--6 separately according to the burner hearth size and is arranged mobile refractory heat-insulating pipe 2 (but specification is that example is described in detail with the set 3 row's refractory heat-insulating pipes of accompanying drawing), and as shown in Figure 2, the mobile refractory heat-insulating pipe of this 3 row is that layering is placed in fixedly between the refractory heat isolating plate 10 and water screen tube 9, a drive rod 3 that is flush-mounted in drive rod chute 12 is arranged under the instlated tubular of lower end near the mobile refractory heat-insulating pipe of water screen tube 9, and other two rows instlated tubular is next respectively to have support steel 11 in order to support instlated tubular of each row.Be located at mobile refractory heat-insulating pipe both sides by above-mentioned support steel 11 shown in Figure 3, drive rod 3 then is flush-mounted in the drive rod chute 12.Be provided with a support 8 on the opposite side top of water screen tube 9, a drive motors 7 is housed on the support, and (this support 8 and drive motors 7 are all in the burner hearth outside, but in this figure, do not give expression), this drive motors 7 drives a rotating shaft 14 by bearing block 13 supportings, 2 chain 5 (see figure 1)s are housed in rotating shaft, form a draw-gear by the directive wheel 4 of motor-driven through being located at the bottom; And this chain 5 is affixed with the other end of drive rod 3 in place, for drive rod 3 being risen or keep horizontal level when descending, is provided with balance weight 15 at the left end of drive rod 3, and in order to guarantee that tractive force evenly effectively also is provided with take-up device 2 in chain.After starting drive motors 7, chain can upwards promote drive rod 3 along drive rod guide groove 12 as seen from Figure 2, relies on support steel 11 to drive simultaneously and respectively arranges mobile refractory heat-insulating pipe 1 rising, has so just formed a laminated adjustable burning guarding belt.Promptly when drive rod wall with refractory lining, refracto area maximum during in lowest positions, gradually reduce when up promoting, when three row's instlated tubulars were all brought up to the top, wall with refractory lining, refracto area minimum only was equivalent to the fixedly size of refractory heat isolating plate.
The arrangement of the mobile refractory heat-insulating pipe that Fig. 4 is represented is different with Fig. 2, and it is made up of two row's instlated tubulars, but other structure all with represented identical of Fig. 2.
Fig. 5 and Fig. 6 represent another embodiment of the design, have promptly replaced mobile refractory heat-insulating pipe 1 by mobile refractory heat isolating plate 16, can obtain same effect.
Claims (3)
1, a kind of laminated adjustable burning guarding belt, it is characterized in that the guiding support (6) that has chute being housed in a side of boiler furnace water screen tube (9), support (6) top in guiding a fixedly refractory heat isolating plate (10) is arranged, and fixedly setting up 3 row's mobile refractory heat-insulating pipes (2) between refractory heat isolating plate (10) and water screen tube (9) separately, a drive rod (3) is arranged below the mobile instlated tubular bottom, respectively be provided with under the mobile refractory heat-insulating pipe of 2 rows in addition and support steel (11), above-mentioned drive rod (3) is flush-mounted in the drive rod chute (12), and be provided with counterweight block (15), and can move horizontally up and down along drive rod chute (12) at the opposite side of drive rod; On the opposite side top of water screen tube (9) support (8) is arranged, be provided with drive motors (7), this drive motors (7) can drive rotating shaft (14) rotation by bearing block (13) supporting, chain (5) is housed in this rotating shaft (14), chain (5) is provided with take-up device (2), its lower end and drive rod (3) are affixed, and the directive wheel through being located at the bottom (4), can make chain (5) cycle rotation, drive drive rod (3) and mobile refractory heat-insulating pipe (1) and do upper and lower displacement and become the adjustable wall with refractory lining, refracto of area.
2, laminated adjustable burning guarding belt according to claim 1, it is characterized by mobile refractory heat-insulating pipe (2) can replace with mobile refractory heat isolating plate (16).
3,, it is characterized by described mobile refractory heat-insulating pipe or thermal insulation board and can measure layer into 1-6 according to claim 1 and 2 described laminated adjustable burning guarding belts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97107949 CN1125268C (en) | 1997-01-29 | 1997-01-29 | Laminated adjustable burning guarding belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97107949 CN1125268C (en) | 1997-01-29 | 1997-01-29 | Laminated adjustable burning guarding belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1189592A true CN1189592A (en) | 1998-08-05 |
| CN1125268C CN1125268C (en) | 2003-10-22 |
Family
ID=5169989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97107949 Expired - Fee Related CN1125268C (en) | 1997-01-29 | 1997-01-29 | Laminated adjustable burning guarding belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1125268C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434803C (en) * | 2006-02-21 | 2008-11-19 | 西安热工研究院有限公司 | Method for partitioning and arranging refractory belt on side wall back against to flame for tangentially-fired boiler |
| CN104654345A (en) * | 2014-08-20 | 2015-05-27 | 北京科电瑞通科技股份有限公司 | Water-cooling wall fin type refractory belt structure |
| CN105402748A (en) * | 2015-12-28 | 2016-03-16 | 高洪福 | Guide device for flue gas at outlet of coal-fired boiler furnace |
| CN113339838A (en) * | 2021-06-08 | 2021-09-03 | 长沙理工大学 | Thermal-insulated mechanism of angularly adjustable |
-
1997
- 1997-01-29 CN CN 97107949 patent/CN1125268C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434803C (en) * | 2006-02-21 | 2008-11-19 | 西安热工研究院有限公司 | Method for partitioning and arranging refractory belt on side wall back against to flame for tangentially-fired boiler |
| CN104654345A (en) * | 2014-08-20 | 2015-05-27 | 北京科电瑞通科技股份有限公司 | Water-cooling wall fin type refractory belt structure |
| CN105402748A (en) * | 2015-12-28 | 2016-03-16 | 高洪福 | Guide device for flue gas at outlet of coal-fired boiler furnace |
| CN113339838A (en) * | 2021-06-08 | 2021-09-03 | 长沙理工大学 | Thermal-insulated mechanism of angularly adjustable |
| CN113339838B (en) * | 2021-06-08 | 2022-05-06 | 长沙理工大学 | Thermal-insulated mechanism of angularly adjustable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1125268C (en) | 2003-10-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 97107949.8 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 97207933.5 utility model patent to be given up, and in the 19 volume of the 43 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |