CN2255027Y

CN2255027Y - Vertical boiler

Info

Publication number: CN2255027Y
Application number: CN 95235074
Authority: CN
Inventors: 林鹰
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-15
Filing date: 1995-11-15
Publication date: 1997-05-28
Anticipated expiration: 2005-11-15

Abstract

The utility model relates to a vertical boiler of anti-burning of external combustion chamber, it improves and realizes on the basis of current vertical boiler, its characteristics are with upper and lower combustion chamber 1, 19, store ash chamber 12 and move to the furnace body 16 outside from the furnace body 16, combustion chamber 19 sets up furnace return bend 6 down, its opening communicates with each other with water interlayer 18, establish burnout chamber 13 in the 16 lower parts of furnace body, meet the position at furnace return bend 6 lower extreme and furnace body 16 and set up a flue opening 15 that runs through furnace body 16 and boiler furnace 17. One end of the opening of the combustion chamber is communicated with a lower combustion chamber 19, the other end of the opening is communicated with a burnout chamber 13, and a combustion-supporting device 14 is arranged at the joint of the burnout chamber 13 and the lower combustion chamber 19, namely above a flue opening 15.

Description

A kind of vertical boiler

The utility model relates to a kind of anti-burning vertical boiler of external combustion chamber.

Traditional vertical counter-burning boiler, because its combustion chamber places cylindrical shell (flue) inside, the combustion chamber is to be made of two combustion chambers up and down, characteristics are compact conformations, floor space is little, but combustion space is little, can't lay refractory material and reach the purpose that store heat improves fire box temperature, because the furnace water cooling degree is bigger, still has part volatile matter and combustible not to have after-flame during operation, discharges with flue gas, therefore still have black smoke to discharge at any time, because the combustion chamber all is arranged on inner barrel, has taken 2/5 of body of heater height, the height of the remaining heating surface arranged is just not enough, in order to guarantee certain thermal efficiency, just have to increase the body of heater height, the result causes the steel loss-rate of boiler to increase, and has wasted firm steel, because upper fire-grating is placed at the higher place of temperature, the normal water pipe furnace grate booster that takes place, bulge, distortion, crackle, obstruction etc. influences boiler and normally moves, and traditional vertical boiler, the thermal efficiency are generally about 60%.

The purpose of this utility model is to overcome above-mentioned disadvantage, and a kind of thermal efficiency height is provided, and oke exhaust blackness is little, and dust content is low, the counter-burning type vertical boiler of the novel external combustion chamber that the steel consumption is low.

In order to achieve the above object; the utility model improves on the basis of existing vertical boiler and realizes; it comprises upper combustion chamber 1; lower combustion chamber 19; upper furnace door 2, upper fire-grating 3, last shelf 4; lower furnace door 8; lower fire grating 9, following shelf 10, shoot door 11; ash storage chamber 12; body of heater 16, flue 17, water interlayer 18; be characterized in upper combustion chamber 1; lower combustion chamber 19; ash storage chamber 12 moves to body of heater 16 outsides in body of heater 16; in order to protect furnace wall and the heat radiation that makes full use of in the burner hearth, in lower combustion chamber 19 burner hearth bend pipe 6 is set, the two ends of burner hearth bend pipe 6 connect together securely with body of heater 16 respectively; its opening communicates with water interlayer 18, forms reliable water-flow circuit.Be provided with secondary furnace 13 in body of heater 16 bottoms, be provided with one in burner hearth bend pipe 6 lower ends and body of heater 16 connecting parts and run through body of heater 16, the floss hole 15 of flue 17, its opening one end leads to lower combustion chamber 19, the other end leads to secondary furnace 13, the effect of this floss hole 15 is that flue gas and flame that the external combustion chamber produces are imported in the flue 17, so that secondary furnace 13 and lower combustion chamber 19 joints be floss hole 15 above a combustion-supporting 14 is set, this combustion-supporting 14 becomes certain angle of declination with secondary furnace 13 inwalls, its angle is the 10-85 degree, this kind combustion-supporting structure, not only can make the further fully burning of combustible in the high-temperature flue gas, but also prolonged the time of staying of flue gas in secondary furnace 13, make the dust in flue gas overwhelming majority separate landing, thereby greatly reduce the oke exhaust blackness and the dust content of boiler.In order to prevent the hyperthermia radiation in upper and lower combustion chamber 1,19, ash storage chamber 12, the secondary furnace 13, building at the left and right sides side wall of upper and lower combustion chamber 1,19, ash storage chamber 12, on outer wall around the secondary furnace 13 has refractory brick 5, in order further to reduce radiation, in the outside of refractory brick 5 and upper and lower combustion chamber 1,19, ash storage chamber's 12 outer casing space fill insulant materials 7, at the space fill insulant material 7 of secondary furnace 13 outside refractory brick 5 with body of heater 16.

The utility model has been broken the counter-burning type vertical boiler structure of original built-in combustion chamber, a kind of external combustion chamber counter-burning type vertical boiler is provided, can arrange heating surface fully in the body of heater, the temperature of combustion chamber improves has greatly improved the burning of coal environment, the oven body part that all burned chambers surround is by original not heating status, become radiation heating-surface, the burner hearth bend pipe that is arranged in simultaneously in the lower combustion chamber also is the radiation heating-surface of a large amount of absorptive thermal radiations, thereby improved the availability of boiler, compare with boiler with volume, can double, the steel consumption reduces by 41%, oke exhaust blackness, dust content is compared with traditional vertical counter-burning boiler, and oke exhaust blackness drops to 0.2 grade for 0.5 grade by Lin Geman, and dust content is by 200mg/nm ³Reduce to 80mg/nm ³, the thermal efficiency is increased to more than 75% by 60%.

Description of drawings:

Accompanying drawing is a structural representation of the present utility model.

The explanation of accompanying drawing drawing:

1 upper combustion chamber, 2 upper furnace doors, 3 upper fire-gratings, shelf on 4,5 refractory brick, 6 burner hearth bend pipes, 7 insulation materials, 8 lower furnace doors, 9 lower fire gratings, 10 times shelves, 11 shoot doors, 12 ash storage chamber, 13 secondary furnaces, 14 combustion-supportings, 15 floss holes, 16 bodies of heater, 17 flues, 18 water interlayers, 19 lower combustion chamber.

In order to understand better and to implement, it is as follows with the accompanying drawing to be that embodiment further specifies below: the external combustion chamber is made up of upper combustion chamber 1,19 ash storage chamber 12 of lower combustion chamber, be provided with upper fire-grating 3 in upper combustion chamber 1 bottom, it is placed on the last shelf 4 that lays respectively at body of heater 16 and upper combustion chamber 1 front wall bottom.Be provided with upper furnace door 2 at position, upper combustion chamber front wall upper middle, end face in the upper combustion chamber 1, left and right side and front wall have been built refractory brick 5 respectively, fill insulant material 7 between refractory brick 5 and housing, lower combustion chamber 19 is positioned at the middle part of external combustion chamber, its top communicates with upper combustion chamber 1 by upper fire-grating 3, its bottom is provided with lower fire grating 9, be provided with down shelf 10 being positioned at body of heater 16 and lower combustion chamber 19 front wall inboards, lower fire grating 9 is placed on it, in lower combustion chamber's 19 burner hearths, be provided with and be no less than 6 burner hearth bend pipes 6, the two ends of burner hearth bend pipe 6 are connected on the body of heater respectively securely, its opening communicates with water interlayer 18, and a floss hole 15 that connects body of heater 16 and flue 17 is set at the position, top that burner hearth bend pipe 6 lower ends link to each other with body of heater 16.This floss hole is opened on lower combustion chamber 19 and secondary furnace 13 respectively, position, preceding lower middle in lower combustion chamber is provided with lower furnace door 8, the front wall of lower combustion chamber 19, left and right sides side within the walls all lays refractory brick 5, fire-resistant special 5 and housing between all fill up insulation material 7, ash storage chamber 12 is positioned at the below of lower combustion chamber 19, by lower fire grating 9 and lower combustion chamber 19 mutually, the middle part of descending most of ash storage chamber's 12 front walls is provided with shoot door 11, the housing of external combustion chamber is the iron plate parcel, and is connected securely on the body of heater 16.Below flue 17, be provided with secondary furnace 13, it communicates with lower combustion chamber 1 by floss hole 15, all build by laying bricks or stones around this secondary furnace 13 with refractory brick 5, above the floss hole 15 of secondary furnace 13 1 sides, be provided with a combustion-supporting 14, this combustion-supporting 14 is made by metallic plate, and become the angle of declination of 10-85 degree with secondary furnace 14 inwalls, in the space below water interlayer 18 fill insulant material 7 between refractory brick 5 outside the secondary furnace 13 and the body of heater 16.The utility model is with the 0.35KW specification, and the appearance and size of external combustion chamber is 1200 * 1200 * 1500m/m, and the height of upper combustion chamber 1 is 400mm, the height power 800mm of lower combustion chamber 19, and burner hearth bend pipe 6 two ends spacings are 500mm for well.

Claims

1, a kind of vertical boiler, it comprises upper combustion chamber (1), lower combustion chamber (19), upper furnace door (2), upper fire-grating (3), last shelf (4), lower furnace door (8), lower fire grating (9), following shelf (10), shoot door (11), ash storage chamber (12), body of heater (16), flue (17), water interlayer (18), it is characterized in that upper combustion chamber (1), lower combustion chamber (19), ash storage chamber (12) moves to body of heater (16) outside in body of heater (16), in lower combustion chamber (19) burner hearth bend pipe (6) is set, and the two ends of burner hearth bend pipe (6) connect together securely with body of heater (16) respectively, its opening communicates with water interlayer (18), be provided with secondary furnace (13) in body of heater (16) bottom, be provided with one in burner hearth bend pipe (6) lower end and body of heater (16) connecting part and run through body of heater (16), the floss hole (15) of flue (17), its opening one end leads to lower combustion chamber (19), the other end leads to secondary furnace (13), is that combustion-supporting (14) is established in the top of floss hole (15) in secondary furnace (13) and lower combustion chamber (19) joint.

2, by the described a kind of vertical boiler of claim 1, it is characterized in that combustion-supporting (14) becomes 10-85 degree angle with secondary furnace (13) inwall.

3, by the described a kind of vertical boiler of claim 1, it is characterized in that upper and lower combustion chamber (1,19), ash storage chamber (12) left and right sides side wall, secondary furnace (13) around build on the outer wall refractory brick (5) arranged.

4, by claim 1,3 described a kind of vertical boilers, the outside and upper and lower combustion chamber (1,19), ash storage chamber (12) the outer casing space fill insulant material (7) that it is characterized in that refractory brick (5), the space fill insulant material (7) of secondary furnace (13) outside refractory brick (5) and body of heater (16).

5, by the described a kind of vertical boiler of claim 1, it is characterized in that upper fire-grating (3) is set in place on the last shelf (4) of body of heater (16), upper combustion chamber (1) front wall bottom, lower fire grating (9) is set in place on the following shelf (10) of body of heater (16), lower combustion chamber (19) front wall inboard.