CN2714963Y - Coal and gas integrative environmental protection fire tube boiler - Google Patents

Coal and gas integrative environmental protection fire tube boiler Download PDF

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Publication number
CN2714963Y
CN2714963Y CN 200420029278 CN200420029278U CN2714963Y CN 2714963 Y CN2714963 Y CN 2714963Y CN 200420029278 CN200420029278 CN 200420029278 CN 200420029278 U CN200420029278 U CN 200420029278U CN 2714963 Y CN2714963 Y CN 2714963Y
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China
Prior art keywords
gas
environmental protection
coal
inner bag
boiler
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Expired - Fee Related
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CN 200420029278
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Chinese (zh)
Inventor
冯栓海
冯慧琴
李静海
白健康
陈建忠
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冯栓海
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Priority to CN 200420029278 priority Critical patent/CN2714963Y/en
Application granted granted Critical
Publication of CN2714963Y publication Critical patent/CN2714963Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Disclosed is a coal and gas integrative environmental protection fire tube boiler, relating to a boiler which converts coal into gas for burning, belonging to the technical field of boiler, solving the problem of how to avoid explosion. The boiler comprises a shell, a liner, a water chamber, a water seal tank, a fan, an air duct and a fume chamber, a gas generator is arranged under the liner, the upper part of the gas generator is a combustion chamber, after improvement, an ignition port communicated with the bottom part of the gas generator is added on the lower part of the combustion chamber. With the added ignition port, open fire is always present at the ignition port, forming the safe ignition condition of fire which waits for gas, and the explosion is effectively avoided; also the adoption of the tilting bias gas generator is favorable to preserve area at the tilting lower end of the gas generator, arrange the ignition port and simplify the structure of the gas generator and the liner, with the advantages of good processing techniques, compact structure, convenient maintenance, high efficiency, safety, energy saving, environmental protection, etc., suitable for normal pressure or pressure-bearing vertical boilers.

Description

Coal, gas integral environmental protection multitubular boiler
Technical field
The utility model relates to a kind of coal-burning boiler, especially coal is converted into coal, the gas integral burning boiler of coal gas after-combustion, belongs to the boiler technology field.
Background technology
Chinese patent discloses a kind of " coal, gas integral cleaning combustion boiler " for No. 02269110.3, and this kind boiler is provided with gas producer below inner bag, utilizes gas producer at first raw coal to be converted into coal gas, to be that fuel burns with coal gas again.The combustion system of boiler is coal, the gas integral combustion system of a relative closure, and it has sufficient combustion, thermal efficiency height, advantages such as burning cleaning.But this boiler is when operation just, because ignition flame, along the coal gas of gas port ejection, and secondary wind height of release between distance bigger, mix bad, bring certain difficulty to ignition, deflagration phenomenon when tending to produce igniting, this detonation meeting produces certain vibration, not only has certain sound, also can make the water ejection in the water seal tank, when serious the kettleman is got a fright; In addition, the gas producer of existing jacket structure for water is arranged on inner bag bottom centre, by interior, the urceolus assembly welding becomes sleeve, to weld the gas port pipe on the interlayer barrel, circulation pipe etc., coal feed point will pass through shell, the interlayer barrel of inner bag and water mantle and be welded on inner tube wall and shell etc. on, it is complicated that structure such as gas producer and even inner bag becomes, the processing and fabricating trouble, be not easy to safeguard, overhaul, and have influence on the load performance of this boiler, these all have influence on applying of this boiler, so also tackle above-mentioned boiler and improve, make it eliminate coal gas defectives such as deflagration phenomenon during combustion ignition just.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of coal, gas integral environmental protection multitubular boiler, and this boiler should be able to be eliminated the coal gas deflagration phenomenon.
The alleged problem of the utility model realizes with following technical scheme:
A kind of coal, gas integral environmental protection multitubular boiler, the water seal tank 4 of the hydroecium 3 that be provided with shell 1 in the formation, be arranged in the inner bag 2 of shell, forms by space between inner bag, shell, shell and inner bag bottom, and blower fan 5, air channel and smoke evacuation chamber, the inner bag below is provided with gas producer, the top is combustion chamber 7, gas producer has gas port 8 and coal feed point 9, leaves the space between the fire grate of inner bag bottom and gas producer, the water seal tank;
After the improvement, set up lighting-up tuyere 12 below combustion chamber 7, lighting-up tuyere communicates with described gas producer bottom.
Above-mentioned coal, gas integral environmental protection multitubular boiler; described gas producer 6 is obliquely installed in inner bag 1 bottom one side; the gap of described lighting-up tuyere 12 between inclined low-end and inner bag; the inclination roof links to each other with the inner bag locular wall; described gas port 8 is arranged on the inclination roof, and described coal feed point 9 is arranged on the wall of inner container of inclined high-end side.
Above-mentioned coal, gas integral environmental protection multitubular boiler; described inclination roof is intervally arranged and is formed by arch tube 13, fin 14; its inclined low-end connects header tank 15, inclined high-end links to each other with described inner bag locular wall; described gas port 8 is arranged on the fin; each arch tube communicates with header tank, and header tank communicates with described hydroecium 3.
Above-mentioned coal, gas integral environmental protection multitubular boiler, the inclination roof of described arch tube, fin structure is a rectangle, and there is refractory cement wallboard 16 rectangle inclination roof both sides, and it has good effect to the even supply smooth combustion of coal gas.
Above-mentioned coal, gas integral environmental protection multitubular boiler are set up smoke-box 40 above described inner bag, between smoke-box and the combustion chamber 7 threaded flue 41 is arranged, uniform vertical heat pipe 42 on the smoke-box roof, and the top of each vertical heat pipe 42 is arranged in hydroecium 3, the bottom is arranged in smoke-box 40.
Above-mentioned coal, gas integral environmental protection multitubular boiler; at the locular wall higher slice of the described combustion chamber tangential secondary air hole 18 that is provided with of arranging; the tangential secondary air hole of each layer is connected with air loop duct 19,20 on the outer wall of combustion chamber respectively; air loop duct is connected with described blower fan 5 by vertical airduct 21, forms the secondary air duct in the described air channel.
Above-mentioned improved coal, gas integral environmental protection multitubular boiler are provided with annular passage 24 in the space of described fire grate and water tight compartment, a uniform wind hole 22 on it, and annular passage is connected with described blower fan 5, forms an air channel in the described air channel.
Above-mentioned coal, gas integral environmental protection multitubular boiler, described smoke evacuation chamber 27 be around shell 1, forms the discharge flue of annular, and the import and export about 23,37 of annular row cigarette channel is oppositely arranged, and outlet 37 communicates with the annular row cigarette channel by vertical flue 47.
Above-mentioned coal, gas integral environmental protection multitubular boiler; set up overflow pipe 45 in described annular row cigarette channel 27 and the vertical flue 47; vertically also set up tilting heat pipe 46 in the flue 47, the bottom of tilting heat pipe is arranged in the annular row cigarette channel, top is arranged in described combustion chamber.
Above-mentioned coal, gas integral environmental protection multitubular boiler are set up hydrolock gravity explosion-proof apparatus 17 in the described formation, this device is fixed on the described shell, and its inlet is connected with described combustion chamber 7.
The utlity model has following characteristics:
1. set up lighting-up tuyere below the combustion chamber, lighting-up tuyere has naked light to exist all the time, forms the safety ignition condition of gas such as fire, can effectively prevent deflagration phenomenon, makes the burning of coal, gas integral more scientific and reasonable;
2. adopt the gas producer of angled bias, lighting-up tuyere can be arranged on the gap between inclined low-end and the inner bag, the gas producer that tilts can make up easily by the inclination roof mode that is connected with the inner bag locular wall, coal feed point can be set directly on the perisporium of inner bag chamber, simplified the structure of gas producer and even inner bag, processing technology is good, compact conformation, Maintenance and Repair convenient, can obviously reduce steel consumption, and then reduce production costs, improved the bearing capacity of boiler simultaneously, both adapt to normal-pressure boiler, also adapted to bearing boiler;
3. if during with inclination roof double as boiler hot radiation heating-surface, the inclination roof can adopt arch tube, the combining structure of fin, and arch tube communicates with hydroecium by header tank and carries out heat exchange, can improve the heat transfer efficiency of boiler, and gas port can be arranged along fin easily;
4. after setting up smoke-box above the inner bag, the threaded flue between smoke-box, smoke-box and combustion chamber, the vertical heat pipe on the smoke-box roof has strengthened the heat transfer efficiency of boiler;
5. the gas producer angled bias can make the combustion space concentrate on inclination roof oblique upper, increased the space of arranging of secondary air, but the secondary air hole multilayer of tangential setting is arranged, when increasing intake, can make combustion-supporting hot blast in the combustion chamber, form strong minute-pressure rotation gas field, make and mix quickly and evenly between combustion-supporting hot blast and the coal gas and prolong the holdup time, thereby the raising gas combustion efficiency, and eliminate black smoke because of sufficient combustion;
6. encircle the smoke evacuation chamber of rich structure, the flue stroke is long, flow resistance is little, helps the separation of dust granule in the flue gas, improves the cooling dust removing effects, can stop black smoke, satisfies environmental requirement;
7. in annular row cigarette channel and vertical flue, set up, can further improve heat transfer efficiency, promote the cooling dedusting overflow pipe, tilting heat pipe;
8. an air intake wind hole is uniform along annular passage, can make an air intake become hot blast by cold wind, and equably by concentrating to the furnace bottom center around the furnace bottom, helps the burning of gas producer base burning layer;
9. the hydrolock gravity explosion-proof apparatus of setting up has further improved security performance;
To sum up, the utility model has solved the ignition deflagrating of hot problem that existing coal, gas integral cleaning combustion boiler had, simplified the structure of gas producer and even inner bag, made things convenient for processing and fabricating, improved the working condition of combustion system, make that it more is tending towards efficiently, safety, energy-saving and environmental protection, suit very much on normal pressure or pressure-bearing vertical boiler, to adopt.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a gas producer vertical view among Fig. 1;
Fig. 3 is an A-A profile among Fig. 2;
Fig. 4 is a blower fan outlet vertical view among Fig. 1;
Fig. 5 is air loop duct and a secondary air hole vertical view among Fig. 1.
The specific embodiment
Each parts label of accompanying drawing is: 1 shell, 2 inner bags, 3 hydroeciums, 4 water seal tanks, 5 blower fans, 6 gas producers, 7 combustion chambers, 8 gas ports, 8 ' fire-resistant gas port of building on the body, 9 coal feed points, 10 coal bunkers, 11 coal feeders, 12 lighting-up tuyeres, 13 arch tubes, 14 fins, 15 header tanks, 16 refractory cements are built wallboard, 17 hydrolock gravity explosion-proof apparatus, 18 secondary air holes, 19,20 air loop ducts, 21 vertical airducts, 22 wind holes, 23 smoke evacuation chamber imports, 24 annular passages, 25 wind dampers, 26 secondary wind dampers, smoke evacuation chambers 27,28 ash releasing tubes, 29 combustion chamber access doors, 30 clean-out doors, 31 hydroecium water inlets, 32 thermometers, 33 blow-off pipes, 34 shell delivery ports, 35 safety valves, 36 Pressure gauges, 37 smoke evacuation chamber outlets, 38 fire grates, 40 smoke-boxes, 41 threaded flues, 42 vertical heat pipes, 43 water level meters, 45 pairs of overflow pipes, 46 tilting heat pipes, 47 vertical flues.
Consult accompanying drawing, the coal seam among Fig. 1 in the gas producer 6 is followed successively by burning zone, oxide layer, reducing zone, destructive distillation layer, drying layer from the bottom to top.The course of work of coal, gas integral combustion system is: the burning zone afterburnt of raw coal bottom in gas producer 6 forms slag, the water seal tank 4 that slag falls into the below produces the part water vapour, a large amount of wind with pass through burning zone after water vapour mixes and enter oxide layer, violent oxidation reaction takes place, and emits a large amount of heat; When the great amount of carbon dioxide gas that oxidation produces upwards passes through reducing zone, under the high temperature anaerobic condition, generate a large amount of CO gas with charcoal generation reduction reaction, when these CO gas pass through dry distillation area at the uphill process dress, with the hydrocarbon of separating out in a large number in the destructive distillation layer, hydrogen, fuel gas such as carbon monoxide mix formation coal gas, drying layer is passed through in these coal gas continuation risings and the coal seam enters the gas producer inner accumulated, make the destructive distillation layer generate coke or semi-coke simultaneously, be drying layer on the destructive distillation layer, this layer temperature is minimum, coal-fired be heated and evaporate moisture content, progressively enter the destructive distillation layer because of the burning of base burning layer comes off then at this layer, reducing zone, oxide layer, enter burning zone burning after-flame at last.The coal gas of gas producer inner accumulated enters combustion chamber 7 by the gas port on the inclination roof 8, and in combustion chamber 7, fire hole 12 has naked light to exist all the time, forms the condition of gas such as fire.A large amount of secondary hot-airs enters the combustion chamber with very high wind speed through secondary air hole 18, forms strong rotating field under the minute-pressure state, under the rotating field effect, makes the abundant mixing ignition burning of flame and coal gas.Primary and secondary air can be regulated arbitrarily, forms a strong swirl flow combustion state of negative oxygen minute-pressure.High-temperature flue gas during gas-fired enters smoke-box 40 by the threaded flue 41 of top, combustion chamber, again through 27 dischargings of annular row cigarette channel.The ash releasing tube 28 of annular row cigarette channel bottom communicates with water seal tank 4, and cigarette ash directly is discharged in the water seal tank 4.
Still consult accompanying drawing, the outlet 37 of annular row cigarette channel 27 communicates with the annular row cigarette channel by vertical flue 47, can reduce open height, is beneficial to the dedusting cooling.
Still consult accompanying drawing, 18 fens upper and lower interlayers of secondary air hole are every setting in the illustrated example, lower floor distributes along fan-shaped circular arc, the upper strata distributes along rotational circle, the secondary air hole of upper and lower layer is connected with vertical airduct 21 in the hydroecium through separately air loop duct 19,20 respectively, the outlet of blower fan 5 and two horizontal airducts connecing are connected with the annular passage 24 of vertical airduct 21, a wind respectively, the air quantity damper 25,26 of primary and secondary air lay respectively at two and the horizontal airduct that connects in.

Claims (10)

1. coal; gas integral environmental protection multitubular boiler; be provided with shell [1] in the formation; be arranged in the inner bag [2] of shell; by inner bag; the hydroecium [3] that the space forms between shell; the water seal tank [4] of shell and inner bag bottom; and blower fan [5]; air channel and smoke evacuation chamber; the inner bag below is provided with gas producer; the top is combustion chamber [7]; gas producer has gas port [8] and coal feed point [9]; the fire grate and the gas producer of inner bag bottom; leave the space between the water seal tank; it is characterized in that; lighting-up tuyere [12] is set up in [7] below in the combustion chamber, and lighting-up tuyere communicates with described gas producer bottom.
2. coal according to claim 1, gas integral environmental protection multitubular boiler; it is characterized in that; described gas producer [6] is obliquely installed in inner bag [1] bottom one side; the gap of described lighting-up tuyere [12] between inclined low-end and inner bag; the inclination roof links to each other with the inner bag locular wall; described gas port [8] is arranged on the inclination roof, and described coal feed point [9] is arranged on the wall of inner container of inclined high-end side.
3. coal according to claim 2, gas integral environmental protection multitubular boiler; it is characterized in that; described inclination roof is intervally arranged and is formed by arch tube [13], fin [14]; its inclined low-end connects header tank [15], inclined high-end links to each other with described inner bag locular wall; described gas port [8] is arranged on the fin; each arch tube communicates with header tank, and header tank communicates with described hydroecium [3].
4. coal according to claim 3, gas integral environmental protection multitubular boiler is characterized in that the inclination roof of described arch tube, fin structure is a rectangle, and there is refractory cement wallboard [16] rectangle inclination roof both sides.
5. coal according to claim 4, gas integral environmental protection multitubular boiler; it is characterized in that; above described inner bag, set up smoke-box 40; threaded flue [41] is arranged between smoke-box and the combustion chamber [7]; uniform vertical heat pipe [42] on the smoke-box roof, the top of each vertical heat pipe [42] are arranged in hydroecium [3], the bottom is arranged in smoke-box [40].
6. coal according to claim 5, gas integral environmental protection multitubular boiler; it is characterized in that; at the locular wall higher slice of the described combustion chamber tangential secondary air hole [18] that is provided with of arranging; the tangential secondary air hole of each layer is connected with air loop duct [19], [20] on the outer wall of combustion chamber respectively; air loop duct is connected with described blower fan [5] by vertical airduct [21], forms the secondary air duct in the described air channel.
7. coal according to claim 6, gas integral environmental protection multitubular boiler; it is characterized in that, be provided with annular passage [24] in the space of described fire grate and water tight compartment, a uniform wind hole [22] on it; annular passage is connected with described blower fan [5], forms an air channel in the described air channel.
8. coal according to claim 7, gas integral environmental protection multitubular boiler; it is characterized in that; described smoke evacuation chamber [27] is around shell [1]; form the discharge flue of annular; be oppositely arranged about the import and export of annular row cigarette channel [23], [37], outlet [37] communicates with the annular row cigarette channel by vertical flue [47].
9. coal according to claim 8, gas integral environmental protection multitubular boiler; it is characterized in that; set up overflow pipe [45] in described annular row cigarette channel [27] and the vertical flue [47]; vertically also set up tilting heat pipe [46] in the flue [47], the bottom of tilting heat pipe is arranged in the annular row cigarette channel, top is arranged in described combustion chamber.
10. coal according to claim 9, gas integral environmental protection multitubular boiler are set up hydrolock gravity explosion-proof apparatus [17] in the described formation, this device is fixed on the described shell, and its inlet is connected with described combustion chamber [7].
CN 200420029278 2004-06-29 2004-06-29 Coal and gas integrative environmental protection fire tube boiler Expired - Fee Related CN2714963Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420029278 CN2714963Y (en) 2004-06-29 2004-06-29 Coal and gas integrative environmental protection fire tube boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420029278 CN2714963Y (en) 2004-06-29 2004-06-29 Coal and gas integrative environmental protection fire tube boiler

Publications (1)

Publication Number Publication Date
CN2714963Y true CN2714963Y (en) 2005-08-03

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Application Number Title Priority Date Filing Date
CN 200420029278 Expired - Fee Related CN2714963Y (en) 2004-06-29 2004-06-29 Coal and gas integrative environmental protection fire tube boiler

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109237452A (en) * 2018-09-05 2019-01-18 徐陈花 A kind of thermal circulation boiler of furnace structure arranged side by side

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109237452A (en) * 2018-09-05 2019-01-18 徐陈花 A kind of thermal circulation boiler of furnace structure arranged side by side
CN109237452B (en) * 2018-09-05 2019-12-20 江西黄龙油脂有限公司 Thermal cycle boiler with parallel boiler structure

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050803

Termination date: 20100629