CN202442314U - Double-boiler barrel transverse type fixed honeycomb fire grate plant fuel steam boiler - Google Patents

Double-boiler barrel transverse type fixed honeycomb fire grate plant fuel steam boiler Download PDF

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Publication number
CN202442314U
CN202442314U CN2012200261296U CN201220026129U CN202442314U CN 202442314 U CN202442314 U CN 202442314U CN 2012200261296 U CN2012200261296 U CN 2012200261296U CN 201220026129 U CN201220026129 U CN 201220026129U CN 202442314 U CN202442314 U CN 202442314U
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CN
China
Prior art keywords
fire grate
plant fuel
boiler
burner hearth
double
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Expired - Fee Related
Application number
CN2012200261296U
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Chinese (zh)
Inventor
陈景禄
谷哲学
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HARBIN JINJING BOILER CO Ltd
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HARBIN JINJING BOILER CO Ltd
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Priority to CN2012200261296U priority Critical patent/CN202442314U/en
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Publication of CN202442314U publication Critical patent/CN202442314U/en
Expired - Fee Related legal-status Critical Current
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Abstract

Aiming at solving the problem that the existing plant fuel boiler is low in heat exchange efficiency, large in floor space, and environment-polluted, the utility model provides a double-boiler barrel transverse type fixed honeycomb fire grate plant fuel steam boiler, comprising a hearth and a material inlet arranged at one side of the hearth, wherein the material inlet of the hearth is a wind power material inlet, the bottom of the hearth is a honeycomb fire grate, the bottom of the honeycomb fire grate is provided with a fan, the upper end of a chamber body of a convection bank region is communicated with the upper end of the hearth, and a water cooling wall of the convection bank region is communicated with a water cooling wall around the hearth. The double-boiler barrel transverse type fixed honeycomb fire grate plant fuel steam boiler is small in occupied land area, simple in structure, and low in cost; the heat efficiency can be improved; and the combustion efficiency can be improved, so that the plant fuel can be rice hull, bark, straw and sawdust, and the plant fuel can be directly fed without being processed, therefore, the labor cost and the transportation cost can be saved, the running cost can be reduced, the environment can be protected, the service life of the boiler can be prolonged, and the boiler is good in economic benefit.

Description

Double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler
Technical field:
The utility model relates to a kind of boiler.
Background technology:
Mostly present boiler is with the coal to be fuel, and it exists the problem that floor space is big, cost is high, and because coal fuel and plant fuel difference in essence; Volatile matter during the coal fuel combustion is 40%; And plant fuel contains volatile matter more than 75%, and the long flame required air during the plant fuel burning is two times of coal, so prominent quick-fried accident just often occurs with coal fuel boiler burning plant fuel; Destroy furnace wall and hurt sb.'s feelings, this also is coal-burning boiler can not be used to the to burn reason of plant fuel.Simultaneously, also there is the low problem of heat exchanger effectiveness in existing coal fuel boiler.
At present at the boiler of the burning plant fuel of usefulness, work under bad environment, discharging flue dust; Employed raw material is a raw rice husk and through the unoxidized graininess rice husk of carbonization, for raw materials such as bark, stalks, needs could use after the processing; Program is complicated and with high costs; Also there is problem of environment pollution caused in existing plant fuel boiler simultaneously, because flue dust is bigger, so as easy as rolling off a log injury staff's eyes; But the substitute that does not have this kind boiler at present, people also have under this rugged environment, work.
The utility model content:
To present plant fuel boiler have that heat exchanger effectiveness is low, floor space is big, problem of environment pollution caused, the utility model provides a kind of boiler, can address the above problem preferably.
Said purpose realizes through following scheme:
A kind of double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler comprises burner hearth and places the charging aperture of burner hearth one side that said burner hearth charging aperture is the wind-force charging aperture, and said burner hearth bottom is the honeycomb fire grate, and said honeycomb fire grate bottom is provided with blower fan.
Said charging aperture is connected with surge chamber, and blower fan is installed in said surge chamber one side lower end; Said surge chamber is connected with hopper, and said feed hopper bottom is provided with runner.
Said burner hearth wall is a water-cooling wall, and said water-cooling wall upper end is communicated with upper drum, and the water-cooling wall lower end is communicated with lower drum, and water cooling tube all is set in said upper drum and the lower drum.
Also comprise the convection bank district that places burner hearth one side, cavity upper end in said convection bank district communicates with the burner hearth upper end; Said convection bank district is the cavity that is surrounded by water-cooling wall, and the water-cooling wall in said convection bank district is communicated with burner hearth water-cooling wall all around.
Dividing plate is installed in the said convection bank district, and said dividing plate is 2-5 piece and arranged crosswise; The length of every dividing plate is all less than the length of convection bank district cavity cross section, but other edge, position of dividing plate conforms to the outward flange of convection bank district cavity inner wall.
Said water-cooling wall is to be arranged by water pipe to form.
The ratio of said furnace wall cooling height and burner hearth floor space is 1-3.
The utility model floor space is little, and is simple in structure, with low cost; Owing to the contact area that has increased cold water pipe and flue gas from structure, so the thermal efficiency is greatly improved; Because efficiency of combustion is improved, thus smoke discharge amount significantly reduce, thereby protected staff's health, protected environment simultaneously, avoided environmental pollution.The utility model is elegant in appearance, safe and reliable, mechanization burning, heating surface area distribute rationally, the curvilinear motion of flue gas stream shape, heat transfer condition are superior, so its improves fume side heat absorption capacity.The used plant fuel of the utility model can be a rice husk, also can be bark, and stalk, wood chip, used plant fuel need not processing and can directly come into operation, and has therefore saved expense artificial, transportation.Fuel the utility model for same has improved burn-off rate, has reduced operating cost, has protected environment.In addition, the utility model has increased the height of boiler and the ratio of floor space, has therefore prolonged the service life of boiler, and economic benefit is good.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Wherein, 1-burner hearth; The 2-charging aperture; 3-honeycomb fire grate; The 4-surge chamber; The 5-blower fan; The 6-hopper; The 7-runner; The 8-upper drum; The 9-lower drum; 10-convection bank district; The 11-dividing plate.
The specific embodiment:
Set forth the utility model in detail preferred embodiment below in conjunction with accompanying drawing.
A kind of double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler; With reference to Fig. 1, Fig. 2 and Fig. 3, it comprises burner hearth 1 and places the charging aperture 2 of burner hearth 1 one sides that said burner hearth 1 charging aperture 2 is the wind-force charging aperture; Concrete structure does; With reference to Fig. 1, charging aperture 2 is connected with surge chamber 4, and blower fan 5 is installed in surge chamber 4 one side lower ends; Surge chamber 4 is connected with hopper 6, and hopper 6 bottoms are provided with runner 7, during work, in hopper, adorns plant fuel earlier, starts runner 7 then plant fuel is advanced to surge chamber 4, opens blower fan 5, can plant fuel be blown into burner hearth 1 internal combustion; The bottom of burner hearth 1 is a honeycomb fire grate 3; The bottom of honeycomb fire grate 3 is provided with the blower fan (not shown), starts blower fan and forms blowing upwards, and plant fuel receives secondary blast like this; Can increase the oxygen contact area of plant fuel in the fuel process like this, thereby increase efficiency of combustion.
The wall of said burner hearth 1 is a water-cooling wall, and said water-cooling wall upper end is communicated with upper drum 8, and the water-cooling wall lower end is communicated with lower drum 9, in said upper drum 8 and the lower drum 9 water cooling tube is set all.With respect to prior art, the utility model has been cancelled the smoke pipe in upper drum 8 and the lower drum 9, and making each wall of burner hearth all is water-cooling wall, can increase the contact area of water cooling tube and flue gas like this, thereby increases the heat exchange effect; In addition, because plant fuel has long flame when burning, therefore need burner hearth to have higher height; The ratio that the utility model limits furnace wall cooling height and burner hearth floor space is 1-3, and through actual tests, this ratio can guarantee the efficiency of combustion of plant fuel preferably; Simultaneously, with respect to coal fuel, has the burner hearth of same height; The utility model has dwindled floor space nearly 3/5ths; Therefore it has saved the space usable floor area greatly, has reduced the use amount of steel, has practiced thrift cost.
The utility model also comprises the convection bank district 10 that places burner hearth one side; Convection bank district 10 is the cavitys that surrounded by water-cooling wall, and the water-cooling wall in convection bank district 10 is communicated with (water-cooling wall is to be arranged by water pipe to form) with burner hearth water-cooling wall all around, and the cavity upper end in convection bank district 10 communicates with the upper end of burner hearth 1; Like this; Convection bank district 10 promptly forms the flue of burner hearth, and difference with the prior art is that prior art is directly discharged combustion product gases outside the boiler; And the utility model is discharged the boiler combustion flue gas through convection bank district 10 more afterwards again; Because therefore the water pipe in convection bank district 10 and the cross current of burner hearth have further increased the contact area and the time of cold water and flue gas, thereby increase the heat exchange effect; Further preferred version does, dividing plate 11 is installed, with reference to Fig. 1 in convection bank district 10; Dividing plate 11 is 2-5 piece and arranged crosswise, and the length of every dividing plate 11 is all less than the length of convection bank district 10 cavity cross sections, but dividing plate 11 other edges, position conform to the outward flange of convection bank district cavity inner wall; The dividing plate role is through the part in the convection bank district is stopped, can control the circulation direction of flue gas; The utility model in the convection bank district, can make flue gas form S type flow process, in length and breadth to washing away a plurality of dividing plate arranged crosswise; Strengthen flue gas on heating surface in many ways diffusivity wash away heating surface, improve the tube bank endothermic effect.
With respect to prior art, the plant fuel that the utility model uses is freer, and scope is wideer, and when using stalk as raw material, the stalk input amount is bigger, can realize not open bundle and direct input, and is convenient and swift and reduced cost.When using rice husk as raw material, whole rice husk (dried shape) contain moisture less than 8% directly wind send and be blown into burner hearth, inject the back by blowing on the preheating wind direction under the stove, pressure floats rice husk or rotates and reaches combustion efficiency.Fuel reaches suspension, also is that carbonization becomes oxide Mars, and fire group reaches the purpose of performance heat.
The said structure of the utility model is of great benefit to burning plants, and the space is big, and the replenish air amount is sufficient, and combustion efficiency is good.
This embodiment is the protection domain that the exemplary illustration of this patent is not limited it; Those skilled in the art can also carry out the part to it and change; The short of spirit that exceeds this patent all is regarded as the replacement that is equal to this patent, all within the protection domain of this patent.

Claims (7)

1. double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler; Comprise burner hearth and place the charging aperture of burner hearth one side; It is characterized in that: said burner hearth charging aperture is the wind-force charging aperture, and said burner hearth bottom is the honeycomb fire grate, and said honeycomb fire grate bottom is provided with blower fan.
2. double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler according to claim 1 is characterized in that said charging aperture is connected with surge chamber, and blower fan is installed in said surge chamber one side lower end; Said surge chamber is connected with hopper, and said feed hopper bottom is provided with runner.
3. double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler according to claim 1 and 2; It is characterized in that said burner hearth wall is a water-cooling wall; Said water-cooling wall upper end is communicated with upper drum; The water-cooling wall lower end is communicated with lower drum, and water cooling tube all is set in said upper drum and the lower drum.
4. double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler according to claim 3 is characterized in that also comprising the convection bank district that places burner hearth one side, and cavity upper end in said convection bank district communicates with the burner hearth upper end; Said convection bank district is the cavity that is surrounded by water-cooling wall, and the water-cooling wall in said convection bank district is communicated with burner hearth water-cooling wall all around.
5. double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler according to claim 4 is characterized in that dividing plate is installed in the said convection bank district, and said dividing plate is 25 and arranged crosswise; The length of every dividing plate is all less than the length of convection bank district cavity cross section, but other edge, position of dividing plate conforms to the outward flange of convection bank district cavity inner wall.
6. double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler according to claim 5 is characterized in that said water-cooling wall is to be arranged by water pipe to form.
7. double-barrel transverse formula fixed cellular fire grate plant fuel steam boiler according to claim 1 and 2, the ratio that it is characterized in that said furnace wall cooling height and burner hearth floor space is 1-3.
CN2012200261296U 2012-01-19 2012-01-19 Double-boiler barrel transverse type fixed honeycomb fire grate plant fuel steam boiler Expired - Fee Related CN202442314U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200261296U CN202442314U (en) 2012-01-19 2012-01-19 Double-boiler barrel transverse type fixed honeycomb fire grate plant fuel steam boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200261296U CN202442314U (en) 2012-01-19 2012-01-19 Double-boiler barrel transverse type fixed honeycomb fire grate plant fuel steam boiler

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Publication Number Publication Date
CN202442314U true CN202442314U (en) 2012-09-19

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104791745A (en) * 2015-04-21 2015-07-22 张家港格林沙洲锅炉有限公司 Evaporation device of waste heat boiler
CN105318309A (en) * 2014-08-04 2016-02-10 孙宇健 Two-drum spraying denitration settling separation corner-tube boiler
CN108916845A (en) * 2018-09-17 2018-11-30 德清嘉颖锅炉有限公司 A kind of novel gas combined steam boiler
CN109237442A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of steam generator using residual heat
CN109237444A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of heat recovery steam generator
CN109237440A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of novel waste heat steam generation facility
CN109237443A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of novel waste heat steam generator
CN109237454A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of combustion and steam generating device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105318309A (en) * 2014-08-04 2016-02-10 孙宇健 Two-drum spraying denitration settling separation corner-tube boiler
CN105318309B (en) * 2014-08-04 2017-08-22 孙宇健 A kind of pair of drum sprays denitration sedimentation separation corner tube boiler
CN104791745A (en) * 2015-04-21 2015-07-22 张家港格林沙洲锅炉有限公司 Evaporation device of waste heat boiler
CN108916845A (en) * 2018-09-17 2018-11-30 德清嘉颖锅炉有限公司 A kind of novel gas combined steam boiler
CN109237442A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of steam generator using residual heat
CN109237444A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of heat recovery steam generator
CN109237440A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of novel waste heat steam generation facility
CN109237443A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of novel waste heat steam generator
CN109237454A (en) * 2018-09-17 2019-01-18 德清嘉颖锅炉有限公司 A kind of combustion and steam generating device

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120919

Termination date: 20150119

EXPY Termination of patent right or utility model