CN104976612B - Horizontal biomass-burning chain-grate boiler - Google Patents
Horizontal biomass-burning chain-grate boiler Download PDFInfo
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- CN104976612B CN104976612B CN201510436792.1A CN201510436792A CN104976612B CN 104976612 B CN104976612 B CN 104976612B CN 201510436792 A CN201510436792 A CN 201510436792A CN 104976612 B CN104976612 B CN 104976612B
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Abstract
A kind of horizontal biomass-burning chain-grate boiler, provided with body of heater, body of heater includes two drums up and down, thoroughly change the structure of furnace body and the circulating form of smoke three-pass, between upper and lower drum, symmetrical assembling number drains into the curved water pipe of tens of rows, and the upper end of curved water pipe is connected with upper drum, lower end is connected with lower drum, the tube bank in formation between lower drum.Built-in two return and three backhaul exhaust gases passes is formed using these tube banks, heating surface arrangement concentrates compact, and heat utilization ratio is high, and heat loss is few in the high-temperature flue gas process of circulation.By changing the shape of side sealing block, make the shrinkage in width of rear arch grate surface, the relatively thin cinder layer run on chain is shunk by the axial width of grate surface, make cinder strata heap, thickness increase, makes flammable charcoal uncombusted in cinder obtain more fully burning, after-flame.Incomplete combustion loss is reduced, energy-conservation purpose is reached.
Description
Technical field
The present invention relates to a kind of boiler, particularly a kind of horizontal biomass-burning chain-grate boiler.
Background technology
The structural shape of traditional chain-grate boiler, all using the intensive punching of tube sheet before and after drum, inside wears smoke pipe, the right and left
Arrange inside and outside water screen tube, fire clay is laid on interior water screen tube, form eight word flues（Two return）, built by laying bricks or stones in burner hearth
Forward and backward arch, builds rear wall by laying bricks or stones, and flue gas in burner hearth is introduced into the word flue of two return eight, by external front smoke box, by eight word flues
Flue gas introduce drum internal flue (the 3rd backhaul) and discharge out of the furnace, by this structure type, with reach arrangement return pass and
Arrange the purpose of backhaul heating surface.The chain-grate boiler of traditional structure, not exclusively, combustible loss is big for biomass combustion, heating surface profit
Low with rate, the thermal efficiency is low.
The content of the invention
The technical problem to be solved in the present invention is in view of the shortcomings of the prior art, it is proposed that one kind reduces imperfect combustion and damaged
The high horizontal biomass-burning chain-grate boiler of mistake, the thermal efficiency.
The technical problem to be solved in the present invention is achieved through the following technical solutions, a kind of horizontal biomass-burning chain
Boiler, provided with body of heater, body of heater includes two drums up and down, and burner hearth is provided with below lower drum, provided with conveying combustion below burner hearth
The chain conveyor of material, burner hearth includes face arch, combustion chamber and rear arch, is provided with and coordinates with chain conveyor in the both sides of burner hearth
Two grate furnaces row side sealing block, fuel transport passageway is constituted between two row's side seal fire grate segments, in two row's side seal fire grate segments
Top is connected provided with the two vertical headers in left and right, the vertical header in left and right two by outer layer water screen tube wall with upper drum, face arch bag
Include under the face arch being arranged between two vertical headers horizontal header and horizontal collection under front wall under horizontal header under horizontal header and front wall, face arch
Face arch stand tube wall is provided between case, front tube wall is provided between horizontal header and upper drum under front wall, is characterized in：
Lower drum is arranged on above rear arch, and lower tube wall is provided between the vertical header in lower drum bottom and left and right two, is cooked
Preceding inner tube wall is provided between the leading section of cylinder and upper drum, pipe wall after being provided between the rearward end and upper drum of lower drum is cooked
The two of cylinder are provided with two row's intervalve walls between upper drum on the side, and two row's inner tubes are provided between the top of lower drum and upper drum
Wall.A backhaul exhaust gases passes are set between outer layer water screen tube wall and intervalve wall, are set between intervalve wall and inner tube wall
For two return exhaust gases passes, three backhaul exhaust gases passes, both sides and the outer layer water cooling of preceding inner tube wall are set between two row's inner tube walls
Provided with the backhaul smoke passing port for connecting combustion chamber with a backhaul exhaust gases passes, intervalve wall and preceding inner tube wall phase between wall pipe wall
Connect, be provided between intervalve wall and rear pipe wall and a backhaul exhaust gases passes with the two return that two return exhaust gases passes are connected are crossed into cigarette
Mouthful, it is provided between inner tube wall and preceding inner tube wall and two return exhaust gases passes with three backhauls that three backhaul exhaust gases passes are connected is crossed into cigarette
Mouthful, inner tube wall connects with rear pipe wall, and rear pipe wall is provided with the outlet flue communicated with three backhaul exhaust gases passes.Described fuel conveying
Passage includes the main burning area of front portion and the lime-ash burning-out zone at rear portion, and the width of lime-ash burning-out zone is less than the width in main burning area,
Be provided with transition region between main burning area and lime-ash burning-out zone, the fire grate side sealing blocks of transition region both sides by anterior A types block and
The Type B block at rear portion is combined, and the bottom of described A type blocks is provided with the colter coordinated with chain conveyor and shoveled, described Type B
The top of block is provided with the arcuate guide fin to varus slag.
The technical problem to be solved in the present invention can also come further to realize by the following technical programs, described A type blocks
Top be provided with to varus slag preceding guide fin.
The technical problem to be solved in the present invention can also be come further to realize by the following technical programs, in two return flue gas
Be equipped with passage and three backhaul exhaust gases passes it is some be drained through festoon, the festoon of crossing is by some of the upper lower drum of connection
Cross water pipe composition.
The present invention compared with prior art, thoroughly changes the structure of furnace body and the circulating form of smoke three-pass, underlying
One return pass, built-in two return and three return pass, heating surface arrangement concentrate compact, and heat utilization ratio is high, high-temperature flue gas
Heat loss is few in the process of circulation.High-temperature region radiation heating-surface arrangement is bigger than traditional product, and overall test operation is proved：Hearth combustion
Operating mode is not influenceed by fractional cold, and heat-transfer effect is faster and better, and the thermal efficiency is high.It is being similar in the appearance and size of traditional product, can
The tonnage capacity that complete machine is dispatched from the factory is increased, and not past the limitation of transportation clearance, reduces field-installed various expenses, is saved
Equipment investment cost.Weight is lighter than traditional product by 40%, saves freight.By changing the shape of side sealing block, make rear arch stove
The shrinkage in width in row face, reaches the poly- heap burning of slag blanket on grate surface and the energy-saving effect of abundant after-flame.
Brief description of the drawings
Fig. 1 is structure diagram of the invention；
Fig. 2 is the horizontal section pipe wall construction schematic diagram of body of heater；
Fig. 3 is one, two, three return pass schematic diagrames of body of heater；
Fig. 4 is fuel transport passageway structural representation；
Fig. 5 is A type block structural diagrams；
Fig. 6 is Type B block structural diagram.
Embodiment
A kind of horizontal biomass-burning chain-grate boiler, provided with body of heater, body of heater includes two drums up and down, below lower drum 6
Provided with burner hearth 9, the chain conveyor 1 provided with conveying fuel below burner hearth, burner hearth includes face arch 3, combustion chamber 2 and rear arch 7,
Two grate furnaces coordinated with chain conveyor are provided with the both sides of burner hearth and arrange side sealing block, the structure between two row's side seal fire grate segments
Into fuel transport passageway, provided with the two vertical headers 8 in left and right above two row's side seal fire grate segments, the vertical header in left and right two passes through
Outer layer water screen tube wall 10 connects with upper drum 4, face arch 3 include being arranged under the face arch between two vertical headers horizontal header and
Be provided with face arch stand tube wall under front wall under horizontal header, face arch under horizontal header and front wall between horizontal header, under front wall horizontal header with
Front tube wall 13 is provided between upper drum.
Provided with devices such as safety, steam discharge, water inlet, water outlet, manhole, liftings at the top of upper drum 4 and drum, lower drum 6 and
Lower drum bottom is provided with blowdown, the manhole Deng Zhuan Catching-rabbits of afterbody.Upper drum is long, and lower drum is short.Left and right side lower header two ends assembling dimension
Repair hole.At the longitudinal rear portion of lower drum, down-comer is equipped between arranged on left and right sides and left and right side lower header.
Lower drum 6 is arranged on above rear arch, and lower tube wall is provided between the vertical header in lower drum bottom and left and right two, is cooked
Provided with preceding inner tube wall 14 between the leading section of cylinder and upper drum, pipe wall 18 after being provided between the rearward end and upper drum of lower drum,
The two of lower drum are provided with two row's intervalve walls 11 between upper drum on the side, and two are provided between the top of lower drum and upper drum
Arrange inner tube wall 12.
Be set to a backhaul exhaust gases passes 15 between outer layer water screen tube wall 10 and intervalve wall 11, intervalve wall 11 with it is interior
It is set between two return exhaust gases passes 16, two row's inner tube walls 12 be set to three backhaul exhaust gases passes 19 between pipe wall 12, it is preceding interior
Provided with the backhaul for connecting combustion chamber with a backhaul exhaust gases passes between the both sides of pipe wall 14 and outer layer water screen tube wall 10
Mouth, intervalve wall connects with preceding inner tube wall, is provided between intervalve wall and rear pipe wall by a backhaul exhaust gases passes and two return
The two return smoke passing port 17 of exhaust gases passes connection, is provided with two return exhaust gases passes and three backhauls between inner tube wall and preceding inner tube wall
Three backhaul smoke passing ports 20 of exhaust gases passes connection, inner tube wall connects with rear pipe wall, and rear pipe wall is provided with and three backhaul exhaust gases passes
The outlet flue 5 communicated.
Be equipped with the backhaul exhaust gases passes 19 of two return exhaust gases passes 16 and three it is some be drained through festoon, it is described to cross water pipe
Beam is crossed water pipe by some of the upper lower drum of connection and constituted.
Between upper and lower drum, symmetrical assembling number drains into the curved water pipe of tens of rows, and upper end and the upper drum of curved water pipe connect
Connect, lower end is connected with lower drum, the tube bank in formation between lower drum.Fin is assembled between the row of tube bank foremost, pipe pipe, is formed
Inner tube wall before sealedly.
Described fuel transport passageway includes the main burning area 21 of front portion and the lime-ash burning-out zone 22 at rear portion, lime-ash burning-out zone
Width be less than main burning area width, between main burning area and lime-ash burning-out zone be provided with transition region 23, the both sides of transition region 23
Fire grate side sealing block combined by the Type B block 25 at anterior A types block 24 and rear portion, A types block and Type B block may each be continuous
Several pieces, the bottom of described A type blocks is provided with the top of the colter shovel 26 coordinated with chain conveyor, described Type B block and set
The arcuate guide fin 27 of oriented varus slag.The top of described A type blocks can also be provided with the preceding guide fin to varus slag.
Using contraction type traveling-grate stoker base, compared with the chain base of traditional structure, difference is to change fire grate
Operational mode.Also change rear arch simultaneously builds arch type.Below rear arch, before and after the width between the fire grate sealing block of both sides not
One, fire grate width is constant, realizes the shrinkage in width of fire grate in the axial direction.A types block coordinates with Type B block, the advantage is that：Chain
The relatively thin cinder layer of upper operation is shunk by the axial width of grate surface, makes cinder strata heap, and thickness increase makes in cinder not
The flammable charcoal of after-flame obtains more fully burning, after-flame.Incomplete combustion loss is reduced, energy-conservation purpose is reached.
Claims (3)
1. a kind of horizontal biomass-burning chain-grate boiler, provided with body of heater, body of heater includes two drums up and down, is provided with below lower drum
Burner hearth, the chain conveyor provided with conveying fuel below burner hearth, burner hearth includes face arch, combustion chamber and rear arch, in burner hearth
Both sides are provided with two grate furnaces coordinated with chain conveyor and arrange side sealing block, fuel are constituted between two row's side seal fire grate segments defeated
Passage is sent, provided with the two vertical headers in left and right above two row's side seal fire grate segments, the vertical header in left and right two passes through outer layer water cooling
Wall pipe wall connects with upper drum, and face arch includes being arranged under the face arch between two vertical headers horizontal collection under horizontal header and front wall
Face arch stand tube wall is provided with case, face arch under horizontal header and front wall between horizontal header, under front wall between horizontal header and upper drum
Provided with front tube wall, it is characterised in that：
Lower drum is arranged on above rear arch, and lower tube wall is provided between the vertical header in lower drum bottom and left and right two, lower drum
Provided with preceding inner tube wall between leading section and upper drum, pipe wall after being provided between the rearward end and upper drum of lower drum, lower drum
Two are provided with two row's intervalve walls between upper drum on the side, and two row's inner tube walls are provided between the top of lower drum and upper drum,
A backhaul exhaust gases passes are set between outer layer water screen tube wall and intervalve wall, are set between intervalve wall and inner tube wall
For two return exhaust gases passes, three backhaul exhaust gases passes, both sides and the outer layer water cooling of preceding inner tube wall are set between two row's inner tube walls
Provided with the backhaul smoke passing port for connecting combustion chamber with a backhaul exhaust gases passes, intervalve wall and preceding inner tube wall phase between wall pipe wall
Connect, be provided between intervalve wall and rear pipe wall and a backhaul exhaust gases passes with the two return that two return exhaust gases passes are connected are crossed into cigarette
Mouthful, it is provided between inner tube wall and preceding inner tube wall and two return exhaust gases passes with three backhauls that three backhaul exhaust gases passes are connected is crossed into cigarette
Mouthful, inner tube wall connects with rear pipe wall, and rear pipe wall is provided with the outlet flue communicated with three backhaul exhaust gases passes,
Described fuel transport passageway includes the main burning area of front portion and the lime-ash burning-out zone at rear portion, and the width of lime-ash burning-out zone is small
Width in main burning area, is provided with transition region, the fire grate side seal of transition region both sides between main burning area and lime-ash burning-out zone
Block is combined by the Type B block at anterior A types block and rear portion, and the bottom of described A type blocks is provided with to be coordinated with chain conveyor
Colter shovel, the top of described Type B block is provided with the arcuate guide fin to varus slag.
2. horizontal biomass-burning chain-grate boiler according to claim 1, it is characterised in that：Set at the top of described A type blocks
The preceding guide fin of oriented varus slag.
3. horizontal biomass-burning chain-grate boiler according to claim 1, it is characterised in that：In two return exhaust gases passes and three
Be equipped with backhaul exhaust gases passes it is some be drained through festoon, the festoon of crossing crosses water pipe structures by some of the upper lower drum of connection
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436792.1A CN104976612B (en) | 2015-07-23 | 2015-07-23 | Horizontal biomass-burning chain-grate boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436792.1A CN104976612B (en) | 2015-07-23 | 2015-07-23 | Horizontal biomass-burning chain-grate boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104976612A CN104976612A (en) | 2015-10-14 |
| CN104976612B true CN104976612B (en) | 2017-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510436792.1A Active CN104976612B (en) | 2015-07-23 | 2015-07-23 | Horizontal biomass-burning chain-grate boiler |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1580494A (en) * | 1968-07-18 | 1969-09-05 | ||
| CN2869589Y (en) * | 2006-02-16 | 2007-02-14 | 郑州锅炉有限责任公司 | Combined boiler |
| CN202065984U (en) * | 2011-05-16 | 2011-12-07 | 长春三鼎锅炉有限公司 | Chain grate boiler with two longitudinally arranged drums |
| CN103388815A (en) * | 2013-08-22 | 2013-11-13 | 仲伟军 | Horizontal type triple-pass chain-grate boiler combusting coal and biomass fuel |
| CN104100961A (en) * | 2014-07-25 | 2014-10-15 | 仲伟军 | Horizontal coal-fired and biomass-fired chain boiler |
| CN203940606U (en) * | 2014-06-27 | 2014-11-12 | 哈尔滨市金京锅炉有限公司 | A kind of two drum longitudinal Honeycomb briquet hot-water boiler |
| CN204829877U (en) * | 2015-07-23 | 2015-12-02 | 仲伟军 | Horizontal living beings chain boiler that fires |
-
2015
- 2015-07-23 CN CN201510436792.1A patent/CN104976612B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1580494A (en) * | 1968-07-18 | 1969-09-05 | ||
| CN2869589Y (en) * | 2006-02-16 | 2007-02-14 | 郑州锅炉有限责任公司 | Combined boiler |
| CN202065984U (en) * | 2011-05-16 | 2011-12-07 | 长春三鼎锅炉有限公司 | Chain grate boiler with two longitudinally arranged drums |
| CN103388815A (en) * | 2013-08-22 | 2013-11-13 | 仲伟军 | Horizontal type triple-pass chain-grate boiler combusting coal and biomass fuel |
| CN203940606U (en) * | 2014-06-27 | 2014-11-12 | 哈尔滨市金京锅炉有限公司 | A kind of two drum longitudinal Honeycomb briquet hot-water boiler |
| CN104100961A (en) * | 2014-07-25 | 2014-10-15 | 仲伟军 | Horizontal coal-fired and biomass-fired chain boiler |
| CN204829877U (en) * | 2015-07-23 | 2015-12-02 | 仲伟军 | Horizontal living beings chain boiler that fires |
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| Publication number | Publication date |
|---|---|
| CN104976612A (en) | 2015-10-14 |
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