CN105465760B - A kind of biomass steam generator - Google Patents
A kind of biomass steam generator Download PDFInfo
- Publication number
- CN105465760B CN105465760B CN201510988810.7A CN201510988810A CN105465760B CN 105465760 B CN105465760 B CN 105465760B CN 201510988810 A CN201510988810 A CN 201510988810A CN 105465760 B CN105465760 B CN 105465760B
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- Prior art keywords
- pipe
- water pipe
- steam generator
- ring water
- lower base
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
- F23L1/02—Passages or apertures for delivering primary air for combustion by discharging the air below the fire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
- F23J2700/001—Ash removal, handling and treatment means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
Present invention discloses a kind of biomass steam generators, including lower base, upper body, flame-observing hole, flame retardant coating, insulating layer, tertiary-air pipe, smoke box, soot blower, inspection hole；It is connected to inside lower base and upper body and constitutes burner hearth；At least 3 transportation work style roads are formed in the steam generator, respectively lead to the lower part of lower base, the top of lower base, upper furnace.The lower base is connected with feed pipe, blast pipe, and the lower base is equipped with fire grate；At least 3 transportation work style roads formed in the steam generator include an air duct, secondary air duct, three times air duct；The one end in air duct connects fire grate bottom, and one end of secondary air duct connects fire grate top；The one end in air duct connects upper furnace three times.Biomass steam generator proposed by the present invention has the advantages that small safe and efficient, energy-saving and environmental protection, compact overall structure, occupied area, quick for installation, high degree of automation, easy to operate, operating cost is low etc..
Description
Technical field
The invention belongs to steam generation facility technical fields, are related to a kind of steam generator more particularly to a kind of vertical life
Material vapors generator.
Background technique
Currently, referring generally to small-sized, miniature steam boiler in China's steam generator, design ordinary water level water capacity is less than
The steam generator of 30L is not belonging to special equipment range, can exempt from special inspection, steam generator mainly with coal, biomass, oil, gas,
Electricity is used as fuel, and the steam generator thermal efficiency that coal makees fuel is low, seriously polluted, belongs to obsolete product, using oil, gas, it is electric as
Although the thermal efficiency of fuel is high, has many advantages, such as that the feature of environmental protection is good, belong to non-renewable energy resources, vulnerable to fuel feeding, gas source, matches electric work
Rate influences, and operating cost is high, deficiency in economic performance, it is also difficult to user be allowed to receive.
Biomass belongs to cleaning, the reproducible energy of low-carbon, has heat with the steam generator that biological particles make fuel
It is high-efficient, 85% or more is reached as high as, the features such as feature of environmental protection is good, operating cost is low, high financial profit.However existing biomass
Steam generator mostly uses greatly the boiler structure of shell and flue, and the thermal efficiency is lower, the steam generator of same nominal evaporation capacity
The water capacity of pan shell type is the several times of waterpipe type；Similarly, the evaporator of identical water capacity, the evaporation capacity of waterpipe type, furnace cavity,
Heating surface area is much larger than pan shell type；Due to above, biomass steam generator or water capacity currently on the market is more than
30L belongs to special equipment scope；In order to limit water capacity, rated capacity very little；In the same of limitation water capacity
When, to reach biggish rated capacity, since heat exchange area is small, exhaust gas temperature is severely exceeded, and heat loss is big, and the thermal efficiency is low
Under.Existing biomass steam generator is not well positioned to meet biological particles burning and the market demand.
In view of this, nowadays there is an urgent need to design a kind of new biomass steam generator, to overcome existing biomass
Drawbacks described above existing for steam generator.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of biomass steam generator, there is safe and efficient, section
Energy, environmental protection, compact overall structure, occupied area be small, quick for installation, high degree of automation, that easy to operate, operating cost is low etc. is excellent
Point.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of biomass steam generator, the steam generator include: lower base, upper body, flame-observing hole, fire resisting
Layer, insulating layer, tertiary-air pipe, smoke box, soot blower, inspection hole；
The pedestal forms distribution plenum by inner cylinder, outer barrel, is fire grate in the middle part of inner cylinder, and deashing is arranged at fire grate lower part
Fire door, several secondary air channels, feed pipe, ignitron are arranged at door, a several air holes, fire grate top, and feed pipe is by distribution plenum
Position is provided with a few air-supply apertures along feedstock direction, and the eccentric position of outer barrel has blast pipe, there is a point wind branch pipe on blast pipe
Onto igniter, wind-distributing pipe road flame-observing hole blower, tertiary-air pipe are connected on outer barrel；
The ontology uses more water pipe structures, by the upper collecting chamber of annular, between lower header by the inner ring water pipe at middle part, outer
Water pipe connection is enclosed, inner ring water pipe, outer ring water pipe and fin constitute membrane wall (extended surface tube) structure using welding, and inner ring water pipe has
One position does not weld fin, and the outer ring water pipe at opposite direction smoke box does not also weld fin, and the live steam pipe position of upper collecting chamber is equipped with
Steam-water separator is connected with water-level control apparatus through pipe between upper collecting chamber and lower header；
The flame-observing hole is connected with flame-observing hole blower on pedestal top between outer barrel；
It is connected to inside the lower base and upper body and constitutes burner hearth, flame retardant coating, upper body are arranged at upper part and lower part
Outside is surrounded by insulating layer；The tertiary-air pipe leads to upper furnace by outer barrel；
The convection pass top that the inner ring water pipe, outer ring water pipe are constituted is equipped with soot blower；The outer ring water pipe
Outside is equipped with door seal device and inspection hole, and inspection hole is communicated in convection pass.
A kind of biomass steam generator, the steam generator include: lower base, upper body, lower base and
Connection constitutes burner hearth inside upper body；
At least 3 transportation work style roads are formed in the steam generator, respectively lead to the lower part of lower base, lower base it is upper
Portion, upper furnace.
As a preferred solution of the present invention, the lower base is connected with feed pipe, blast pipe, and the lower base is set
There is fire grate；
At least 3 transportation work style roads formed in the steam generator include an air duct, secondary air duct, three times air duct；It is described
The one end in air duct connects fire grate bottom, and one end of secondary air duct connects fire grate top；The one end in air duct connects burner hearth three times
Top.
As a preferred solution of the present invention, the air duct three times is mainly formed by tertiary-air pipe, the tertiary air
Pipe leads to upper furnace by outer barrel.
As a preferred solution of the present invention, the pedestal forms distribution plenum by inner cylinder, outer barrel, in inner cylinder
Portion is fire grate, and shoot door, an air holes are arranged at fire grate lower part, and fire door, secondary air channel, feed pipe, ignitron, outer cylinder are arranged at fire grate top
The eccentric position of body has blast pipe；Have on point wind branch pipe to igniter on blast pipe, wind-distributing pipe Lu Guanhuo is connected on outer barrel
Hole blower, tertiary-air pipe.
As a preferred solution of the present invention, the ontology uses more water pipe structures, by the upper collecting chamber of annular, lower header
Between by the inner ring water pipe at middle part, the connection of outer ring water pipe, inner ring water pipe, outer ring water pipe and fin are using welding, composition membrane type
Wall (extended surface tube) structure, inner ring water pipe have a position not weld fin, and the outer ring water pipe at opposite direction smoke box does not also weld fin
The live steam pipe position of piece, upper collecting chamber is equipped with steam-water separator, is connected with water level control dress through pipe between upper collecting chamber and lower header
It sets.
As a preferred solution of the present invention, the steam generator further includes flame-observing hole, flame retardant coating, insulating layer, cigarette
Case；
The flame-observing hole is connected with flame-observing hole blower on pedestal top between outer barrel；
It is connected to inside the lower base and upper body and constitutes burner hearth, flame retardant coating, upper body are arranged at upper part and lower part
Outside is surrounded by insulating layer；
The convection pass top that the inner ring water pipe, outer ring water pipe are constituted is equipped with soot blower；
The outside of the outer ring water pipe is equipped with door seal device and inspection hole, and inspection hole is communicated in convection pass.
As a preferred solution of the present invention, the convection pass top that the inner ring water pipe, outer ring water pipe are constituted is equipped with
Soot blower, soot blower are evenly equipped with several small jet pipes being directed downward in the convection pass of annular.
As a preferred solution of the present invention, the outside of the outer ring water pipe is equipped with several door seal devices and inspection hole,
Inspection hole is communicated in convection pass.
The beneficial effects of the present invention are steam generator proposed by the present invention, have safe and efficient, energy-saving and environmental protection,
The advantages such as compact overall structure, occupied area be small, quick for installation, high degree of automation, easy to operate, operating cost is low.
The ontology uses more water pipe structures, and water capacity is small, and destructive power is small, highly-safe.It is radiation of burner hearth area, right
Flow area is big, and fire box temperature is lower, and the nitrogen oxides of generation is few, and exhaust gas temperature is low, the biomass granule fuel of use is renewable,
The feature of environmental protection is good, and steam generator has the characteristics that thermal efficiency height, energy-saving and environmental protection.
Vapour can be gone out at 10 minutes or so after starting, vapour is fast out, high-efficient.Compact overall structure, occupied area are small, install
Fast, as soon as can be integrated in square cabinet by various subsidiary engines and control system, connecting water power can be used.
Computer controller control can be used in control system, and high degree of automation only needs start & shutdown through one key, easy to operate.Biology
For matter granular fuel price far below electricity, oil, gas fuel, operating cost is low.
Vertical type biomass steam generator pedestal of the invention forms distribution plenum by inner cylinder, outer barrel, in inner cylinder
Portion is fire grate, and shoot door, a several air holes are arranged at fire grate lower part, and fire door, several secondary air channels, feed pipe, point are arranged at fire grate top
Fire tube, feed pipe are provided with a few air-supply apertures along feedstock direction by the position of distribution plenum, the eccentric position of outer barrel have into
Air hose has on point wind branch pipe to igniter on blast pipe, wind-distributing pipe road flame-observing hole blower, tertiary air can be connected on outer barrel
Pipe, the pedestal have the advantage that
The pedestal have multifunctionality, can meet air distribution, charging, igniting, burning, preheated air, air-cooled base shell,
Clear up the functions such as clinker, cleaning ashes.The air distribution of pedestal is reasonable, can adjust the quantity of one, two, three wind aperture and big as needed
Small, Secondary Air is evenly arranged on the circumferencial direction on fire grate top, and cloth wind is uniform；Feed pipe is provided with a few edges by the position of distribution plenum
The air-supply aperture of feedstock direction, the indoor wind of air distribution, in burner hearth, can prevent cartridge to be tempered after aperture enters feed pipe,
There is pusher and mend wind effect, aperture direction can be prevented along feedstock direction deflection from aperture material leakage；Blast pipe position is eccentric, makes air distribution
Indoor air swirl can make air fully absorb the heat on pedestal inner cylinder, play the work of preheated air, air-cooled base shell
With；The aid distributing pipe of various needs can be connected on outer barrel, and position of opening is flexible；The fire door on fire grate top can clear up clinker；Furnace
The shoot door of row lower part can clear up ashes.The pedestal can be applied to the biomass steam generator of other type of furnaces.
The understructure is compact, and material saves, and burning is abundant.
Vertical type biomass steam generator body of the invention uses more water pipe structures, by the upper collecting chamber of annular, lower header
Between by the inner ring water pipe at middle part, the connection of outer ring water pipe, inner ring water pipe, outer ring water pipe and fin are using welding, composition membrane type
Wall (extended surface tube) structure, inner ring water pipe have a position not weld fin, and the outer ring water pipe at opposite direction smoke box does not also weld fin
The live steam pipe position of piece, upper collecting chamber is equipped with steam-water separator, is connected with water level control dress through pipe between upper collecting chamber and lower header
It sets.
The upper collecting chamber or lower header is made of inner ring cylinder, outer ring cylinder, annular endplate and annular tubesheet；Header
Endless tube can be rolled into steel pipe, or further oval cross section is made in a slightly pressure piece；Header can also use the rammed U-shaped circle pair of doughnut-shaped steel plate
Postwelding production；When upper collecting chamber steel pipe or U-shaped circle make, external steam-water separator need to be configured.
The inner ring water pipe and outer ring water pipe stagger arrangement, flue gas transversal flow water pipe, and S is laterally walked in convection pass
Shape sufficiently disturbs, and heat exchange efficiency improves, and is not easy dust stratification.
Inner ring water pipe, outer ring water pipe and the fin constitutes membrane wall (extended surface tube) structure, makes convection current cigarette using welding
Road does not leak out, and heat loss is small；Inner ring water pipe can not also weld fin, using compact arranged close manifold construction；Outer ring water pipe can also
Fin is not welded, outer ring water pipe is surrounded with shell or flame retardant coating, it is made not leak cigarette；When necessary, convection pass can arrange 2 circles or more
The design of multi-turn water pipe.
The inner ring water pipe has a position not weld fin, as burner hearth exhanst gas outlet, at opposite direction smoke box
Outer ring water pipe does not also weld fin, the exhanst gas outlet as convection pass.
Convection pass between the inner ring water pipe, outer ring water pipe is designed using equal cigarette speed, flue gas point it is equidistant it is left,
Right two halves Zhou Liudong, makes flue gas flow rate in 10m/s or so, makes to be not easy dust stratification between convection pass.
The smoke box highly close to length of pipe, plays collection cigarette, exhanst gas outlet exists in outer ring water pipe smoke outlet
The lowest point of smoke box makes cigarette ash be not easy to accumulate.
The water-level control apparatus is equipped with water level control electrode and visual water-level gauge, can be automatically controled steam generator water
It position in the normal range, can also artificial observation water level.
Show control adapter tube, including safety valve, pressure gauge, pressure controller etc., pressure equipped with various safety on the upper collecting chamber
Force controller can be according to the pressure duty of setting.
The flame-observing hole passes through lower header on pedestal top, and when substructure height is enough, flame-observing hole can also be mounted in fire door
On the pedestal on top or on fire door, flame-observing hole is connected with flame-observing hole blower, plays cooling effect, prevents visor by flame sooting.
Be connected to composition burner hearth inside the lower base and upper body, upper collecting chamber is gas-phase space, at inner ring and
There is flame retardant coating on the upside of lower base fire grate, when burning prevents these from not having the tube wall temperature at water cooling position excessively high, causes metal strong
Degree reduces, and body exterior is surrounded by insulating layer, reduces radiation loss.
The tertiary-air pipe is horizontally through upper collecting chamber wall and leads to upper furnace, can also enter on burner hearth from roof of the furnace
Portion, according to related research, the ratio of one, two, three wind of reasonable distribution can effectively reduce the discharge of nitrogen oxide pollutant, and
So that each position of burner hearth is had air distribution, burn more abundant, improves the thermal efficiency, and general biomass steam generator is not configured three times
The nitrogen oxides of wind, generation is more, burns insufficient.
The convection pass top of the inner ring water pipe, outer ring water pipe composition is equipped with soot blower, and soot blower is in annular
Convection pass in be evenly equipped with the small jet pipe that several spouts are directed downward；Small jet pipe passes through fin and enters convection pass, inner ring water
When pipe, outer ring water pipe spacing are enough, soot blowing jet pipe can pass through upper collecting chamber at the top of upper collecting chamber and enter convection pass；This soot blower makes
For the steam for using vertical type biomass steam generator included as soot blowing vapour source, steam is fixed at regular intervals by solenoid valve control
When soot blowing tens of seconds, steam purges convection pass by the small jet pipe of soot blower, can effectively clear up the dust stratification in convection pass,
Improve heat transfer effect；The daily steam consumption quantity of soot blower is about the 1 ‰ of steam production, and cost is extremely low.It, can also when having compressed air
Use compressed air as the gas source of soot blower.
The outside of the outer ring water pipe is communicated in convection pass equipped with several door seal devices and inspection hole, inspection hole.
Door seal device is a seal box, is welded with outer ring water pipe mode wall, outer end is through-hole, the outer ring water pipe membrane type on the inside of through-hole
Wall fin is vacancy, is reached inside convection pass by through-hole, is cast with flame retardant coating between four peripheral wall of through-hole and seal box,
Can prevent seal box hyperthermia and superheating, seal box be it is rectangular, may be alternatively configured circle.Inspection hole is circle, may be alternatively configured rectangular, is inserted in
In through-hole, when maintenance, can be removed, and check internal convection pipe and dust stratification situation, compressed air cleaning can be used internal when dust stratification is serious
Convection pass.
Mountable temperature sensor or suitable temperature is selected on the outer ring water pipe membrane wall or on smoke outlet tube
Switch, when water level control failure, occurs just will appear temperature exceeding standard, steam generation when scale is serious in no-water dry combustion or water pipe
Device just will start automatic protection, stop burning, and waiting can just rerun after releasing failure.
Detailed description of the invention
Fig. 1 is the sectional structure chart of vertical type biomass steam generator of the present invention.
Fig. 2 is the sectional view along A-A of Fig. 1.
Fig. 3 is the B-B direction cross-sectional view of Fig. 1.
In figure:
1- pedestal (combustion apparatus) 2- shoot door air holes of 3-
4- fire grate 5- fire door 6- secondary air channel
7- lower header 8- flame-observing hole 9- inner ring water pipe
The outer ring 10- water pipe 11- ontology 12- upper collecting chamber
13- flame retardant coating 14- insulating layer 15- live steam pipe
16- steam-water separator 17- tertiary-air pipe 18- smoke box
19- soot blower 20- fin (band steel) 21- water-level control apparatus
22- door seal device 23- inspection hole 24- flame-observing hole blower
25- burner hearth 26- feed pipe 27- ignitron
28- blast pipe 29- inner cylinder 30- outer barrel
Specific embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment one
Please refer to Fig.1 to Fig.3, present invention discloses a kind of vertical type biomass steam generator, including lower base 1, on
Portion's ontology 11, flame-observing hole 8, flame retardant coating 13, insulating layer 14, tertiary-air pipe 17, smoke box 18, soot blower 19, inspection hole 23 etc.；Institute
It the lower base 1 stated and is connected to inside upper body 11 and constitutes burner hearth 25, flame retardant coating 13 arranged at upper part and lower part, outside ontology 11
It is surrounded by insulating layer 14；The tertiary-air pipe 17 leads to 25 top of burner hearth by outer barrel 30；The inner ring water pipe 9, outer ring water
The convection pass top that pipe 10 is constituted is equipped with soot blower 19；The outside of the outer ring water pipe 10 is equipped with door seal device 22 and inspection
Hole 23 is looked into, inspection hole is communicated in convection pass.
The pedestal 1 forms distribution plenum by inner cylinder 29, outer barrel 30, and the middle part of inner cylinder 29 is fire grate 4, under fire grate 4
There are shoot door 2, a several air holes 3 in portion, and fire door 5, several secondary air channels 6, feed pipe 26, ignitron 27 are arranged at 4 top of fire grate, into
Expects pipe 26 is provided with a few air-supply apertures along feedstock direction by the position of distribution plenum, and the eccentric position of outer barrel 30 has blast pipe
28, have on point wind branch pipe to igniter on blast pipe 28, wind-distributing pipe road flame-observing hole blower 24, three can be connected on outer barrel 30
Secondary air hose 17.
The ontology 11 uses more water pipe structures, by the inner ring water for passing through middle part between the upper collecting chamber 12 of annular, lower header 7
Pipe 9, outer ring water pipe 10 connect, and inner ring water pipe 9, outer ring water pipe 10 and fin 20 constitute membrane wall (extended surface tube) knot using welding
Structure, inner ring water pipe 9 have a position not weld fin 20, and the outer ring water pipe 10 at opposite direction smoke box 18 does not weld fin 20 yet,
15 position of live steam pipe of upper collecting chamber 12 is equipped with steam-water separator 16, is connected with water level through pipe between upper collecting chamber 12 and lower header 7
Control device 21.The flame-observing hole 8 is connected with flame-observing hole blower 24 on 1 top of pedestal.
It being connected to inside the lower base 1 and upper body 11 and constitutes burner hearth 25, flame retardant coating 13 is arranged at upper part and lower part, this
Insulating layer 14 is surrounded by outside body 11.The tertiary-air pipe 17 leads to 25 top of burner hearth.
The convection pass top that the inner ring water pipe 9, outer ring water pipe 10 are constituted is equipped with soot blower 19, and soot blower 19 exists
Several small jet pipes being directed downward are evenly equipped in the convection pass of annular.The outside of the outer ring water pipe 10 is filled equipped with several door seals
22 and inspection hole 23 are set, inspection hole is communicated in convection pass.
Working principle of the present invention is as follows:
Biomass granule fuel is sent into fire grate 4 from the feed pipe 26 on pedestal 1 by spiral feeder, attached in ignitron 27
After nearly accumulation by 28 branch pipe of blast pipe send heat and Mars that electric heating igniter generates are sent on fuel and light a fire by wind,
The fuel of point kindling is on the 4 bottom First air of fire grate, 4 top Secondary Air of fire grate, burner hearth 25 that air blower enters through blast pipe 28
Under the reasonable cooperation of portion's tertiary air in burner hearth 25 full combustion, the high-temperature flue gas formed in burner hearth 25 after full combustion is from burner hearth
25 outlets enter 9 membrane wall of inner ring water pipe of 2 circle stagger arrangement water pipe arrangements and the convection heating surface of 10 membrane wall of outer ring water pipe composition,
Flue gas transversal flow water pipe is exported after high efficient heat exchanging from smoke box 18 and is discharged, and the flue gas of discharge can sufficiently absorb heat through heat retrieving apparatus drop again
Low smoke temperature, for flue gas out after air-introduced machine, dust-extraction unit dedusting, clean flue gas is discharged into atmosphere through chimney, generation it is a small amount of
Clinker, ashes can be cleared out from fire door 5, the ash removing opening 2 on pedestal 1.
The process of boiler circuit is: after treated soft water injection heat retrieving apparatus preheating, being sent into 11 next part of ontology through water pump
Case 7, the water of lower header 7 by 25 radiant heat of burner hearth and convection pass advection heat inner ring water pipe 9, rise in outer ring water pipe 10 and
As gas-liquid two-phase stream mode, the steam with liquid enters upper collecting chamber 12, in steam in the steam-water separator 16 of upper collecting chamber 12
The moisture of institute's band exports from live steam pipe 15 after being separated and obtains steam.
Vertical type biomass steam generator uses induced draft balanced draft, the burning of burner hearth tiny structure, and negative-pressure firing is opened
The threat of generation can be sprayed outward to avoid fire when fire door, while prevent from smoldering outward, working environment is clean.Biomass granule fuel
Tar ingredients are more when burning, and the flying dust in flue gas is easily sticked in convection pass, reduce heat exchange efficiency, while being easy blocking pair
Flow flue keeps hearth combustion difficult, therefore other than selecting higher convection current cigarette speed belt to walk flying dust, need to often be blown with soot blower
Ash, the small jet pipe soot blower structure of steam is simple, layouts flexibly, blowing time is adjustable, and steam consumption is small, and deashing ability is strong.Right
There are multiple inspection holes for leading to outside on flow flue, opens inspection door, dust stratification and water pipe situation in convection pass can be observed, it must
It can be by the dust stratification in inspection hole cleaning convection pass when wanting.
The present invention is designed using advanced integrated full-automatic, by steam generator and subsidiary engine, pipe valve instrument, control
The system integration is in a square cabinet, and compact-sized, outer dimension is small, beautiful.Product has purging, tail purging before burner hearth, automatically
Water inlet, excessive low water level protection, furnace body wall overtemperature prote, autofeed, automatic ignition, steam overpressure protection, automatic ash blowing, water shortage surpass
Temperature, superpressure are interlocked and are alarmed, and operating parameter can check on a display screen, high degree of automation, only need one-key start or shutdown, are grasped
Make simply, it is highly-safe.
In conclusion vertical type biomass steam generator proposed by the present invention, there are safe and efficient, energy-saving and environmental protection, whole
The advantages such as body is compact-sized, occupied area is small, quick for installation, high degree of automation, easy to operate, operating cost is low.
Description and application of the invention herein are illustrative, is not wishing to limit the scope of the invention to above-described embodiment
In.The deformation and change of embodiments disclosed herein are possible, the realities for those skilled in the art
The replacement and equivalent various parts for applying example are well known.It should be appreciated by the person skilled in the art that not departing from the present invention
Spirit or essential characteristics in the case where, the present invention can in other forms, structure, arrangement, ratio, and with other components,
Material and component are realized.Without departing from the scope and spirit of the present invention, can to embodiments disclosed herein into
The other deformations of row and change.
Claims (7)
1. a kind of biomass steam generator, which is characterized in that the steam generator includes: lower base (1), upper body
(11), flame-observing hole (8), flame retardant coating (13), insulating layer (14), tertiary-air pipe (17), smoke box (18), soot blower (19), inspection
Hole (23)；
The pedestal (1) forms distribution plenum by inner cylinder (29), outer barrel (30), is fire grate (4), furnace in the middle part of inner cylinder (29)
Shoot door (2), a several air holes (3) arranged at row (4) lower part, fire grate (4) top have fire door (5), several secondary air channels (6), into
Expects pipe (26), ignitron (27), feed pipe (26) are provided with a few air-supply apertures along feedstock direction by the position of distribution plenum, outside
The eccentric position of cylinder (30) has blast pipe (28), has on point wind branch pipe to igniter on blast pipe (28), outer barrel (30)
Upper connection wind-distributing pipe road flame-observing hole blower (24), tertiary-air pipe (17)；
The ontology (11) uses more water pipe structures, by the inner ring between the upper collecting chamber (12) of annular, lower header (7) by middle part
Water pipe (9), outer ring water pipe (10) connection, inner ring water pipe (9), outer ring water pipe (10) and fin (20) use and weld, and constitute membrane type
Wall construction, i.e. extended surface tube structure, inner ring water pipe (9) have a position not weld fin (20), at opposite direction smoke box (18)
Outer ring water pipe (10) does not weld fin (20) yet, and live steam pipe (15) position of upper collecting chamber (12) is equipped with steam-water separator (16), upper collection
Water-level control apparatus (21) are connected with through pipe between case (12) and lower header (7)；
The flame-observing hole (8) is connected with flame-observing hole blower (24) on pedestal (1) top between outer barrel (30)；
It is connected to inside the lower base (1) and upper body (11) and constitutes burner hearth (25), flame retardant coating is arranged at upper part and lower part
(13), insulating layer (14) are surrounded by outside upper body (11)；The tertiary-air pipe (17) leads to burner hearth by outer barrel (30)
(25) top；
The convection pass top that the inner ring water pipe (9), outer ring water pipe (10) are constituted is equipped with soot blower (19)；The outer ring
The outside of water pipe (10) is equipped with door seal device (22) and inspection hole (23), and inspection hole is communicated in convection pass.
2. a kind of biomass steam generator, which is characterized in that the steam generator includes: lower base (1), upper body
(11), composition burner hearth (25) is connected to inside lower base (1) and upper body (11)；
At least 3 transportation work style roads are formed in the steam generator, respectively lead to the lower part of lower base (1), lower base (1) it is upper
Portion, burner hearth (25) top；
The pedestal (1) forms distribution plenum by inner cylinder (29), outer barrel (30), is fire grate (4), furnace in the middle part of inner cylinder (29)
Shoot door (2), an air holes (3) arranged at row (4) lower part, fire grate (4) top have fire door (5), secondary air channel (6), feed pipe (26),
Ignitron (27), the eccentric position of outer barrel (30) have blast pipe (28)；There is point wind branch pipe to igniter on blast pipe (28)
On, wind-distributing pipe road flame-observing hole blower (24), tertiary-air pipe (17) are connected on outer barrel (30)；
The lower base (1) is connected with feed pipe (26), blast pipe (28), and the lower base (1) is equipped with fire grate (4)；
At least 3 transportation work style roads formed in the steam generator include an air duct, secondary air duct, three times air duct；It is described primary
The one end in air duct connects fire grate (4) bottom, and one end of secondary air duct connects fire grate (4) top；The one end in air duct connects furnace three times
Thorax (25) top.
3. biomass steam generator according to claim 2, it is characterised in that:
The air duct three times mainly passes through tertiary-air pipe (17) formation, and the tertiary-air pipe (17) leads to burner hearth by outer barrel (30)
(25) top.
4. biomass steam generator according to claim 2, it is characterised in that:
The ontology (11) uses more water pipe structures, by the inner ring between the upper collecting chamber (12) of annular, lower header (7) by middle part
Water pipe (9), outer ring water pipe (10) connection, inner ring water pipe (9), outer ring water pipe (10) and fin (20) use and weld, and constitute membrane type
Wall construction, i.e. extended surface tube structure, inner ring water pipe (9) have a position not weld fin (20), at opposite direction smoke box (18)
Outer ring water pipe (10) does not weld fin (20) yet, and live steam pipe (15) position of upper collecting chamber (12) is equipped with steam-water separator (16), upper collection
Water-level control apparatus (21) are connected with through pipe between case (12) and lower header (7).
5. biomass steam generator according to claim 4, it is characterised in that:
The steam generator further includes flame-observing hole (8), flame retardant coating (13), insulating layer (14), smoke box (18)；
The flame-observing hole (8) is connected with flame-observing hole blower (24) on pedestal (1) top between outer barrel (30)；
It is connected to inside the lower base (1) and upper body (11) and constitutes burner hearth (25), flame retardant coating is arranged at upper part and lower part
(13), insulating layer (14) are surrounded by outside upper body (11)；
The convection pass top that the inner ring water pipe (9), outer ring water pipe (10) are constituted is equipped with soot blower (19)；
The outside of the outer ring water pipe (10) is equipped with door seal device (22) and inspection hole (23), and inspection hole is communicated to convection pass
It is interior.
6. biomass steam generator according to claim 4, it is characterised in that:
The convection pass top that the inner ring water pipe (9), outer ring water pipe (10) are constituted is equipped with soot blower (19), soot blower
(19) several small jet pipes being directed downward are evenly equipped in the convection pass of annular.
7. biomass steam generator according to claim 4, it is characterised in that:
The outside of the outer ring water pipe (10) is communicated to convection current cigarette equipped with several door seal devices (22) and inspection hole (23), inspection hole
In road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510988810.7A CN105465760B (en) | 2015-12-24 | 2015-12-24 | A kind of biomass steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510988810.7A CN105465760B (en) | 2015-12-24 | 2015-12-24 | A kind of biomass steam generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465760A CN105465760A (en) | 2016-04-06 |
| CN105465760B true CN105465760B (en) | 2018-12-04 |
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ID=55603745
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510988810.7A Expired - Fee Related CN105465760B (en) | 2015-12-24 | 2015-12-24 | A kind of biomass steam generator |
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| Country | Link |
|---|---|
| CN (1) | CN105465760B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228856A (en) * | 2020-10-16 | 2021-01-15 | 广州远控智能科技有限公司 | Control device of biomass steam generator and steam generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09310835A (en) * | 1996-05-22 | 1997-12-02 | Ishikawajima Harima Heavy Ind Co Ltd | Hopper structure of coal fired boiler |
| CN201652308U (en) * | 2010-04-13 | 2010-11-24 | 广东兆丰能源技术有限公司 | Biomass fuel burning device |
| CN203731661U (en) * | 2014-01-11 | 2014-07-23 | 孙长杰 | Automatic feeding biomass boiler |
| CN104279548A (en) * | 2013-07-12 | 2015-01-14 | 李雨田 | Energy-collecting heat exchange environment-friendly boiler |
| CN205746763U (en) * | 2015-12-24 | 2016-11-30 | 浙江锅炉有限公司 | A kind of biomass steam generator |
-
2015
- 2015-12-24 CN CN201510988810.7A patent/CN105465760B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09310835A (en) * | 1996-05-22 | 1997-12-02 | Ishikawajima Harima Heavy Ind Co Ltd | Hopper structure of coal fired boiler |
| CN201652308U (en) * | 2010-04-13 | 2010-11-24 | 广东兆丰能源技术有限公司 | Biomass fuel burning device |
| CN104279548A (en) * | 2013-07-12 | 2015-01-14 | 李雨田 | Energy-collecting heat exchange environment-friendly boiler |
| CN203731661U (en) * | 2014-01-11 | 2014-07-23 | 孙长杰 | Automatic feeding biomass boiler |
| CN205746763U (en) * | 2015-12-24 | 2016-11-30 | 浙江锅炉有限公司 | A kind of biomass steam generator |
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| Publication number | Publication date |
|---|---|
| CN105465760A (en) | 2016-04-06 |
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