CN205746753U - Vertical type biomass steam generator - Google Patents

Abstract

This utility model discloses a kind of vertical type biomass steam generator, connects composition burner hearth including lower base, upper body, lower base and upper body are internal；Described upper body top and bottom are respectively equipped with the upper collecting chamber of annular, lower header, are provided with at least two circle water pipes between upper collecting chamber, lower header, and the convection pass top that at least two circle water pipes are constituted is equipped with soot blower.At least two circle water pipes include inner ring water pipe, outer ring water pipe；Connected by fin between major part inner ring water pipe, connected by fin between the water pipe of major part outer ring, constitute membrane wall structure, i.e. extended surface tube structure；A described inner ring water pipe at least position does not sets fin, and the outer ring water pipe at its rightabout smoke box does not sets fin yet.The vertical type biomass steam generator that the utility model proposes, has safe efficient, energy-saving and environmental protection, compact overall structure, the advantage such as floor space is little, quick for installation, automaticity is high, simple to operate, operating cost is low.

Description

Vertical type biomass steam generator

Technical field

This utility model belongs to steam raising plant technical field, relates to a kind of steam generator, particularly relates to one Plant vertical type biomass steam generator.

Background technology

At present, refer generally to small-sized, miniature steam boiler at China's steam generator, design ordinary water level water capacity Steam generator less than 30L is not belonging to special equipment scope, can exempt from special inspection, steam generator mainly with coal, Biomass, oil, gas, electricity are as fuel, and the steam generator thermal efficiency that coal makees fuel is low, seriously polluted, belong to In obsolete product, although high using oil, gas, electricity as the thermal efficiency of fuel, there is the advantages such as the feature of environmental protection is good, but Belonging to non-renewable energy resources, easily affected by fuel feeding, source of the gas, distribution power, operating cost is high, deficiency in economic performance, Also make it difficult for user to accept.

Biomass belong to cleaning, the reproducible energy of low-carbon (LC), make the steam generating appliances of fuel with biological particles The features such as having the thermal efficiency high, reach as high as more than 85%, the feature of environmental protection is good, operating cost is low, and economic benefit is high. But existing biomass steam generator uses the boiler structure of shell and flue mostly, the thermal efficiency is relatively low, phase It is the several times of waterpipe type with the water capacity of the steam generator pan shell type of rated capacity；In like manner, identical water capacity Vaporizer, the evaporation capacity of waterpipe type, furnace cavity, heating surface area be much larger than pan shell type；Due to above reason, Biomass steam generator in the market or water capacity, more than 30L, belong to special equipment category；? In order to limit water capacity, rated capacity is the least；While limiting water capacity, bigger volume to be reached Determining evaporation capacity, owing to heat exchange area is little, exhaust gas temperature severe overweight, heat loss is big, and the thermal efficiency is low.Existing Biomass steam generator be not well positioned to meet biological particles burning and the market demand.

In view of this, nowadays in the urgent need to designing a kind of new biomass steam generator, in order to overcome existing life The drawbacks described above that material vapors generator exists.

Utility model content

Technical problem to be solved in the utility model is: provides a kind of vertical type biomass steam generator, has Safe efficient, energy-saving and environmental protection, compact overall structure, floor space are little, quick for installation, automaticity The advantage such as high, simple to operate, operating cost is low.

For solving above-mentioned technical problem, this utility model adopts the following technical scheme that

A kind of vertical type biomass steam generator, described steam generator includes: lower base, upper body, Lower base is internal with upper body connects composition burner hearth；

Described upper body top and bottom are respectively equipped with the upper collecting chamber of annular, lower header, upper collecting chamber, lower header Between be provided with at least two circle water pipes, at least two circle water pipes constitute convection pass top equipped with soot blower.

As a kind of preferred version of the present utility model, at least two circle water pipes include inner ring water pipe, outer ring water pipe； Connected by fin between major part inner ring water pipe, connected by fin between the water pipe of major part outer ring, constitute film Formula wall construction, i.e. extended surface tube structure；

A described inner ring water pipe at least position does not sets fin, and the outer ring water pipe at its rightabout smoke box is the most not If fin.

As a kind of preferred version of the present utility model, the live steam pipe position of described upper collecting chamber is equipped with steam-water separation Device, connects through pipe between upper collecting chamber and lower header and has water-level control apparatus.

As a kind of preferred version of the present utility model, in described steam generator, form at least 3 transportation work style roads, point Do not lead to the bottom of lower base, the top of lower base, upper furnace.

As a kind of preferred version of the present utility model, described lower base is connected with feed pipe, blast pipe, described Lower base is provided with fire grate；

At least 3 transportation work style roads formed in described steam generator include air channel, secondary air duct, a tertiary air road； The one end in a described air channel connects bottom fire grate, and one end of secondary air duct connects fire grate top；Tertiary air road One end connects upper furnace；

Described tertiary air road is mainly formed by tertiary-air pipe, and described tertiary-air pipe is led on burner hearth by outer cylinder body Portion.

As a kind of preferred version of the present utility model, described base is formed distribution plenum by inner barrel, outer cylinder body, The middle part of inner barrel is fire grate, and shoot door, an air holes are arranged at fire grate bottom, and fire door, secondary wind are arranged at fire grate top Pipe, feed pipe, ignitron, the eccentric position of outer cylinder body has blast pipe；Point wind arm is had to igniting on blast pipe On device, outer cylinder body connects wind-distributing pipe road flame-observing hole blower, tertiary-air pipe.

As a kind of preferred version of the present utility model, described upper body uses many water pipe structures, by annular Connected by the inner ring water pipe at middle part, outer ring water pipe between upper collecting chamber, lower header, inner ring water pipe, outer ring water pipe Use with fin and weld, constitute membrane wall structure, i.e. extended surface tube structure；

Described inner ring water pipe has a position not weld fin, and the outer ring water pipe at its rightabout smoke box does not welds fin yet Sheet；The live steam pipe position of upper collecting chamber, equipped with steam-water separator, connects through pipe between upper collecting chamber and lower header and has water Level control device.

As a kind of preferred version of the present utility model, described steam generator also include flame-observing hole, flame retardant coating, Heat-insulation layer；

Described flame-observing hole, on base top, has flame-observing hole blower with being connected between outer cylinder body；

Described lower base is internal with upper body connects composition burner hearth, and there are flame retardant coating, top in its upper and lower Body exterior is surrounded by heat-insulation layer.

As a kind of preferred version of the present utility model, described soot blower is evenly equipped with in the convection pass of annular Several little jet pipes being directed downward.

As a kind of preferred version of the present utility model, the outside of described outer ring water pipe equipped with several door seal devices and Check hole door, check that hole is communicated in convection pass.

The beneficial effects of the utility model are: the vertical type biomass steam generator that the utility model proposes, tool Have that safe efficient, energy-saving and environmental protection, compact overall structure, floor space are little, quick for installation, automatization's journey Spend the advantages such as high, simple to operate, operating cost is low.

Described body uses many water pipe structures, and water capacity is little, and destructive power is little, and safety is high.Radiation of burner hearth Area, big to flow area, fire box temperature is relatively low, and the nitrogen oxides of generation is few, and exhaust gas temperature is low, the life of employing Material grains fuel is renewable, the feature of environmental protection good, and steam generator has thermal efficiency height, the feature of energy-saving and environmental protection.

Just can go out vapour after startup at about 10 minutes, go out vapour fast, efficiency is high.Compact overall structure, occupation of land face Long-pending little, quick for installation, water power can be connected by integrated to various subsidiary engines and control system in a square cabinet Just can use.

Control system can use computer controller control, and automaticity is high, only needs start & shutdown through one key, simple to operate. Biomass granule fuel price is far below electricity, oil, gas fuel, and operating cost is low.

Vertical type biomass steam generator base of the present utility model is formed distribution plenum by inner barrel, outer cylinder body, interior The middle part of cylinder is fire grate, and shoot door, a several air holes are arranged at fire grate bottom, and fire door, several is arranged at fire grate top Secondary air channel, feed pipe, ignitron, feed pipe has a few sending along feedstock direction through the position of distribution plenum Wind aperture, the eccentric position of outer cylinder body has blast pipe, blast pipe has point wind arm to igniter, urceolus Can connect wind-distributing pipe road flame-observing hole blower, tertiary-air pipe on body, described base has the advantage that

Described base has multifunctionality, can meet air distribution, feed, light a fire, burn, preheated air, air-cooled The functions such as base shell, cleaning slag, cleaning ashes.The air distribution of base is reasonable, can adjust one on demand, two, The quantity of tertiary air perforate and size, secondary wind is distributed on the circumferencial direction on fire grate top, and cloth wind is uniform；Enter Material pipe has a few air-supply apertures along feedstock direction through the position of distribution plenum, and the wind in distribution plenum enters through aperture Entering after feed pipe in burner hearth, cartridge can be prevented to be tempered, also have pusher and mend wind effect, aperture direction is along entering The deflection of material direction can prevent from aperture material leakage；Blast pipe position is eccentric, makes the air swirl in distribution plenum, can make Air fully absorbs the heat on base inner core, plays preheated air, the effect of air-cooled base shell；Outer cylinder body On can connect the aid distributing pipe of various needs, and position of opening is flexible；The fire door on fire grate top can clear up slag；Stove The shoot door of row bottom can clear up ashes.Described base can be applicable to the biomass steam of other type of furnaces and occurs Device.

Described understructure is compact, and material saves, and burning is fully.

Vertical type biomass steam generator body of the present utility model uses many water pipe structures, by the upper collection of annular Connected by the inner ring water pipe at middle part, outer ring water pipe between case, lower header, inner ring water pipe, outer ring water pipe and fin Sheet uses welding, constitutes membrane wall (extended surface tube) structure, and inner ring water pipe has a position not weld fin, its phase Outer ring water pipe at opposite direction smoke box does not welds fin yet, the live steam pipe position of upper collecting chamber equipped with steam-water separator, on Connect through pipe between header and lower header and have water-level control apparatus.

Described upper collecting chamber or lower header are made up of inner ring cylinder, outer ring cylinder, annular endplate and annular tubesheet； Header also can be rolled into endless tube with steel pipe, or oval cross section made in a most slightly pressure piece；Header also can use doughnut-shaped steel plate Postwelding is made by rammed U-shaped circle；When upper collecting chamber steel pipe or U-shaped circle make, external soda pop need to be configured Separator.

Described inner ring water pipe and outer ring water pipe stagger arrangement, flue gas transversal flow water pipe, and in convection pass laterally Walking S-shaped, abundant disturbance, heat exchange efficiency improves, is difficult to dust stratification.

Described inner ring water pipe, outer ring water pipe use with fin and weld, and constitute membrane wall (extended surface tube) structure, Making convection pass not leak out, heat loss is little；Inner ring water pipe also can not weld fin, uses compact arranged intensive pipe Structure；Outer ring water pipe also can not weld fin, surrounds outer ring water pipe with shell or flame retardant coating so that it is do not leak cigarette；Must When wanting, convection pass can arrange the multi-turn water pipe design that 2 circles are above.

Described inner ring water pipe has a position not weld fin, as burner hearth exhanst gas outlet, and its rightabout smoke box The outer ring water pipe at place does not welds fin, as the exhanst gas outlet of convection pass yet.

Convection pass between described inner ring water pipe, outer ring water pipe uses the design of equal cigarette speed, and flue gas grades distance Left and right two halves Zhou Liudong, make flue gas flow rate at about 10m/s, make to be difficult between convection pass dust stratification.

Described smoke box is at outer ring water pipe smoke outlet, highly close to length of pipe, plays collection cigarette effect, flue gas Export the lowest part at smoke box, make flue dust be not easy to pile up.

Described water-level control apparatus, equipped with water lev el control electrode and visual water-level gauge, can automatically control steam generation Device water level is within normal range, it is possible to manual observation water level.

Control adapter is shown equipped with various safety, including relief valve, Pressure gauge, pressure controller on described upper collecting chamber Deng, pressure controller can be according to the pressure duty set.

Described flame-observing hole is on base top, and through lower header, when substructure height is enough, flame-observing hole also can fill On the base of door upper part or on fire door, flame-observing hole connects flame-observing hole blower, plays cooling effect, prevents Visor is by flame sooting.

Described lower base is internal with upper body connects composition burner hearth, and upper collecting chamber is gas-phase space, its inner ring There is flame retardant coating on the upside of place and lower base fire grate, during burning, prevent these from there is no the tube wall temperature mistake at water-cooled position Height, causes metal strength to reduce, and body exterior is surrounded by heat-insulation layer, makes radiation loss reduce.

Described tertiary-air pipe is horizontally through upper collecting chamber wall and leads to upper furnace, it is possible to enter burner hearth from roof of the furnace Top, according to relevant research, the ratio of one, two, three wind of reasonable distribution, can effectively reduce nitrogen oxides dirty The discharge of dye thing, and make each position of burner hearth have air distribution, burning is more abundant, improves the thermal efficiency, and the most raw Material vapors generator does not configures tertiary air, and the nitrogen oxides of generation is many, burns insufficient.

Described inner ring water pipe, the convection pass top of outer ring water pipe composition exist equipped with soot blower, soot blower It is evenly equipped with, in the convection pass of annular, the little jet pipe that several spout is directed downward；Little jet pipe enters convection current through fin Flue, when inner ring water pipe, outer ring water pipe spacing are enough, soot blowing jet pipe can enter from upper collecting chamber top through upper collecting chamber Convection pass；The steam that this soot blower use vertical type biomass steam generator carries, as soot blowing vapour source, steams Vapour controls timing soot blowing tens of second at set intervals through electromagnetic valve, and steam is blown by the little jet pipe of soot blower Sweep convection pass, can effectively clear up the dust stratification in convection pass, improve heat transfer effect；The steaming of soot blower every day Steam consumption is about the 1 ‰ of steam production, and cost is extremely low.When having compressed air, it is also possible to compressed air is as soot blowing The source of the gas of device.

The outside of described outer ring water pipe is equipped with several door seal devices and checks hole door, checks that hole is communicated to convection current cigarette In road.Door seal device is a seal box, welds with outer ring water pipe pattern wall, and its outer end is through hole, in through hole The outer ring water pipe membrane wall fin of side is vacancy, can arrive inside convection pass through through hole, through hole and sealing Being cast with flame retardant coating between box four perisporium, can prevent seal box hyperthermia and superheating, seal box is square, it is possible to make Circular.Check that Kong Menwei is circular, it is possible to do squarely, be inserted in through hole, can remove during maintenance, in checking Portion's convection tube and dust stratification situation, can clear up internal convection flue by compressed air when dust stratification is serious.

Can mounting temperature sensor or select suitably on described outer ring water pipe membrane wall or on smoke outlet tube Temperature switch, when water lev el control is malfunctioning, occurs that incrustation scale arises that temperature time serious in no-water dry combustion, or water pipe Exceeding standard, steam generator will start protection automatically, stops burning, just can rerun after waiting releasing fault.

Accompanying drawing explanation

Fig. 1 is the sectional structure chart of this utility model vertical type biomass steam generator.

Fig. 2 is that the A-A of Fig. 1 is to sectional view.

Fig. 3 is that the B-B of Fig. 1 is to sectional view.

In figure:

1-base (combustion apparatus) 2-air holes of shoot door 3-

4-fire grate 5-fire door 6-secondary air channel

7-lower header 8-flame-observing hole 9-inner ring water pipe

10-outer ring water pipe 11-body 12-upper collecting chamber

13-flame retardant coating 14-heat-insulation 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-checks hole door 24-flame-observing hole blower

25-burner hearth 26-feed pipe 27-ignitron

28-blast pipe 29-inner barrel 30-outer cylinder body

Detailed description of the invention

Describe preferred embodiment of the present utility model below in conjunction with the accompanying drawings in detail.

Embodiment one

Referring to Fig. 1 to Fig. 3, this utility model discloses a kind of vertical type biomass steam generator, including under Portion's base 1, upper body 11, flame-observing hole 8, flame retardant coating 13, heat-insulation layer 14, tertiary-air pipe 17, smoke box 18, soot blower 19, inspection hole 23 etc.；Described lower base 1 is internal with upper body 11 connects structure Becoming burner hearth 25, there is flame retardant coating 13 its upper and lower, and body 11 is outside is surrounded by heat-insulation layer 14；Described three Secondary airduct 17 is led to burner hearth 25 top by outer cylinder body 30；Described inner ring water pipe 9, outer ring water pipe 10 are constituted Convection pass top equipped with soot blower 19；The outside of described outer ring water pipe 10 is equipped with door seal device 22 With inspection hole door 23, check that hole is communicated in convection pass.

Described base 1 is formed distribution plenum by inner barrel 29, outer cylinder body 30, and the middle part of inner barrel 29 is fire grate 4, Shoot door 2, a several air holes 3 are arranged at fire grate 4 bottom, fire grate 4 top have fire door 5, several secondary air channel 6, Feed pipe 26, ignitron 27, feed pipe 26 has a few air-supplies along feedstock direction through the position of distribution plenum Aperture, the eccentric position of outer cylinder body 30 has blast pipe 28, blast pipe 28 has point wind arm to igniter On, outer cylinder body 30 can connect wind-distributing pipe road flame-observing hole blower 24, tertiary-air pipe 17.

Described body 11 uses many water pipe structures, is passed through middle part by between the upper collecting chamber 12 of annular, lower header 7 Inner ring water pipe 9, outer ring water pipe 10 connect, inner ring water pipe 9, outer ring water pipe 10 and fin 20 use and weld, Constituting membrane wall (extended surface tube) structure, inner ring water pipe 9 has a position not weld fin 20, its rightabout Outer ring water pipe 10 at smoke box 18 does not welds fin 20 yet, and live steam pipe 15 position of upper collecting chamber 12 is equipped with soda pop Separator 16, connects through pipe between upper collecting chamber 12 and lower header 7 and has water-level control apparatus 21.Described sight fire Hole 8, on base 1 top, connects and has flame-observing hole blower 24.

Described lower base 1 is internal with upper body 11 connects composition burner hearth 25, and its upper and lower has fire-resistant Layer 13, body 11 is outside is surrounded by heat-insulation layer 14.Described tertiary-air pipe 17 leads to burner hearth 25 top.

The convection pass top that described inner ring water pipe 9, outer ring water pipe 10 are constituted is equipped with soot blower 19, soot blowing Device 19 is evenly equipped with several little jet pipe being directed downward in the convection pass of annular.Described outer ring water pipe 10 Outside equipped with several door seal devices 22 and check hole door 23, check that hole is communicated in convection pass.

Operation principle of the present utility model is as follows:

Biomass granule fuel is sent into fire grate 4, at point by spiral feeder feed pipe 26 from base 1 Sent to obtain here the heat that electrical heating igniter produced of wind and fire by blast pipe 28 arm after piling up near fire tube 27 Star is delivered to light a fire on fuel, the fuel that catches fire of point aerator bottom the fire grate 4 that blast pipe 28 enters once Wind, fire grate 4 top secondary wind, burner hearth 25 top tertiary air reasonable coordination under fully burn in burner hearth 25, The high-temperature flue gas formed after fully burning in burner hearth 25 is in burner hearth 25 outlet entrance 2 circle stagger arrangement water pipes arrange Circle water pipe 9 membrane wall and the convection heating surface of outer ring water pipe 10 membrane wall composition, flue gas transversal flow water pipe, Discharging from smoke box 18 outlet after high efficient heat exchanging, the flue gas of discharge can fully absorb heat through heat retrieving apparatus again and reduce cigarette temperature, Flue gas out is after air-introduced machine, dust arrester dedusting, and clean flue gas enters air through chimney, lacking of generation Amount slag, ashes can fire door 5 from base 1, ash removing opening 2 clear out.

The flow process of boiler circuit is: after treated soft water injects heat retrieving apparatus preheating, send into body through water pump 11 lower headers 7, the water of lower header 7 by burner hearth 25 radiant heat and convection pass convection of heat inner ring water pipe 9, Rising in outer ring water pipe 10 and become gas-liquid two-phase flow state, the steam of band liquid enters upper collecting chamber 12, at Shang Ji Obtain from live steam pipe 15 outlet after the moisture carried in steam is separated by the steam-water separator 16 of case 12 Steam.

Vertical type biomass steam generator uses induced draft balanced draft, and burner hearth tiny structure burns, and negative pressure is fired Burning and fire can be avoided when opening fire door to spray the threat of generation outward, prevent from smoldering outward simultaneously, working environment is clean. During biomass granule fuel burning, tar ingredients is more, and the flying dust in flue gas is easily sticked in convection pass, reduces Heat exchange efficiency, easily blocks convection pass simultaneously, makes hearth combustion difficulty, therefore except selecting higher convection current Cigarette speed belt is walked outside flying dust, need to be by the frequent soot blowing of soot blower, and steam little jet pipe soot blower simple in construction is layouted Flexibly, blowing time is adjustable, and steam consumption is little, and deashing ability is strong.Convection pass has outside multiple leading to Check hole, open inspection door, dust stratification and water pipe situation in convection pass can be observed, if desired can be through checking Dust stratification in hole cleaning convection pass.

This utility model uses advanced integrated full-automatic design, by steam generator and subsidiary engine, pipe valve Instrument, control system integration are in a square cabinet, and compact conformation, overall dimensions is little, attractive in appearance.Product possesses stove Purge before thorax, tail purges, automatic feeding water, excessive low water level protection, furnace body wall overtemperature prote, autofeed, automatic point Fire, steam overpressure protection, automatic ash blowing, hydropenia, overtemperature, superpressure interlock and report to the police, and operational factor can be aobvious Checking in display screen, automaticity is high, only needs one-key start or shutdown, simple to operate, and safety is high.

Embodiment two

A kind of vertical type biomass steam generator, described steam generator includes: lower base, upper body, Lower base is internal with upper body connects composition burner hearth.

Described upper body top and bottom are respectively equipped with the upper collecting chamber of annular, lower header, upper collecting chamber, lower header Between be provided with at least two circle water pipes, at least two circle water pipes constitute convection pass top equipped with soot blower.

In sum, the vertical type biomass steam generator that the utility model proposes, there is safe efficient, joint Energy, environmental protection, compact overall structure, floor space is little, quick for installation, automaticity is high, simple to operate, The advantages such as operating cost is low.

Description the most of the present utility model and application are illustrative, are not wishing to limit scope of the present utility model In the above-described embodiments.The deformation of embodiments disclosed herein and change are possible, for those this areas Those of ordinary skill for embodiment replace and equivalence various parts be known.Those skilled in the art It is noted that this utility model can in the case of without departing from spirit or essential characteristics of the present utility model With in other forms, structure, layout, ratio, and realize with other assembly, material and parts.Not In the case of departing from this utility model scope and spirit, embodiments disclosed herein can be carried out other deformation And change.

Claims (10)

1. a vertical type biomass steam generator, it is characterized in that, described steam generator includes: lower base (1), upper body (11), and lower base (1) is internal with upper body (11) connects composition burner hearth (25)；

Described upper body (11) top and bottom are respectively equipped with the upper collecting chamber (12) of annular, lower header (7), being provided with at least two circle water pipes between upper collecting chamber (12), lower header (7), the convection pass top that at least two circle water pipes are constituted is equipped with soot blower (19).

Vertical type biomass steam generator the most according to claim 1, it is characterised in that:

At least two circle water pipes include inner ring water pipe (9), outer ring water pipe (10)；Connected by fin (20) between major part inner ring water pipe (9), connected by fin (20) between major part outer ring water pipe (10), constitute membrane wall structure, i.e. extended surface tube structure；

Described inner ring water pipe (9) at least position does not sets fin (20), and the outer ring water pipe (10) at its rightabout smoke box (18) place does not sets fin (20) yet.

Vertical type biomass steam generator the most according to claim 1, it is characterised in that:

Live steam pipe (15) position of described upper collecting chamber (12), equipped with steam-water separator (16), connects through pipe between upper collecting chamber (12) and lower header (7) and has water-level control apparatus (21).

Vertical type biomass steam generator the most according to claim 1, it is characterised in that:

Form at least 3 transportation work style roads in described steam generator, respectively lead to the bottom of lower base (1), the top of lower base (1), burner hearth (25) top.

Vertical type biomass steam generator the most according to claim 4, it is characterised in that:

Described lower base (1) is connected with feed pipe (26), blast pipe (28), and described lower base (1) is provided with fire grate (4)；

At least 3 transportation work style roads formed in described steam generator include air channel, secondary air duct, a tertiary air road；The one end in a described air channel connects fire grate (4) bottom, and one end of secondary air duct connects fire grate (4) top；The one end in tertiary air road connects burner hearth (25) top；

Described tertiary air road is mainly formed by tertiary-air pipe (17), and described tertiary-air pipe (17) is led to burner hearth (25) top by outer cylinder body (30).

Vertical type biomass steam generator the most according to claim 1, it is characterised in that:

Described base (1) is formed distribution plenum by inner barrel (29), outer cylinder body (30), the middle part of inner barrel (29) is fire grate (4), shoot door (2), an air holes (3) are arranged at fire grate (4) bottom, fire door (5), secondary air channel (6), feed pipe (26), ignitron (27) are arranged at fire grate (4) top, and the eccentric position of outer cylinder body (30) has blast pipe (28)；Having point wind arm on blast pipe (28) to igniter, outer cylinder body (30) is upper connects wind-distributing pipe road flame-observing hole blower (24), tertiary-air pipe (17).

Vertical type biomass steam generator the most according to claim 1, it is characterised in that:

Described upper body (11) uses many water pipe structures, connected by the inner ring water pipe (9) at middle part, outer ring water pipe (10) by between the upper collecting chamber (12) of annular, lower header (7), inner ring water pipe (9), outer ring water pipe (10) use with fin (20) and weld, constitute membrane wall structure, i.e. extended surface tube structure；

Described inner ring water pipe (9) has a position not weld fin (20), and the outer ring water pipe (10) at its rightabout smoke box (18) place does not welds fin (20) yet；Live steam pipe (15) position of upper collecting chamber (12), equipped with steam-water separator (16), connects through pipe between upper collecting chamber (12) and lower header (7) and has water-level control apparatus (21).

Vertical type biomass steam generator the most according to claim 1, it is characterised in that:

Described steam generator also includes flame-observing hole (8), flame retardant coating (13), heat-insulation layer (14)；

Described flame-observing hole (8), on base (1) top, has flame-observing hole blower (24) with being connected between outer cylinder body (30)；

Described lower base (1) is internal with upper body (11) connects composition burner hearth (25), and there is flame retardant coating (13) its upper and lower, and upper body (11) is outside is surrounded by heat-insulation layer (14).

Vertical type biomass steam generator the most according to claim 1, it is characterised in that:

Described soot blower (19) is evenly equipped with several little jet pipe being directed downward in the convection pass of annular.

Vertical type biomass steam generator the most according to claim 2, it is characterised in that:

The outside of described outer ring water pipe (10) is equipped with several door seal devices (22) and checks hole door (23), checks that hole is communicated in convection pass.