CN207648776U - Minitype vertical type circulating combustion biomass granular fuel boiler - Google Patents

Abstract

The utility model discloses a kind of minitype vertical type circulating combustion biomass granular fuel boilers, integrated design machinery air intake fuel is directly entered boiler gasification, and combustion automatically, after being located at the burning of inner lining level-one vaporizer and two level gasification, and combustion, combustion flame under the combustion-supporting effect of oxygen, is transformed into low-level oxidation thermal-flame by carburizing flame in air.The highest temperature of the flame is up under 1600 DEG C of -1700 DEG C of conditions of high temperature, the abundant after-flame of combustible energy in flue gas, after flame rises to inside of boiler body top by the high temperature that Liang Ge gasification combustion chamber generates, reciprocal in boiler water interlayer further through fire tube, circulating combustion flows to form more backhauls.Using the utility model special construction, boiler thermal efficiency is up to 96.5% or more, energy saving 30 35%.

Description

Minitype vertical type circulating combustion biomass granular fuel boiler

Technical field

The utility model is related to a kind of biomass granular fuel boilers, are especially a kind of minitype vertical type circulating combustion biology Matter particle fuel boiler.

Background technology

Flue gas is directly discharged into air using vertical fire-pipe for common compact vertical type biomass boiler and in addition boiler configures life Substance combustion machine gas, gasification it is insufficient, row black smoke and be discharged a large amount of dust polluting environments the problem of.Example：Biomass boiler is in addition Single configuration biomass combustion machine, not only cost of investment is high, and up to 1600 DEG C -1700 DEG C of high temperature reaches in combustor vaporizer Less than efficiently using, a big chunk thermal energy has been slatterned.

Utility model content

Therefore, in order to solve above-mentioned deficiency, the utility model provides a kind of minitype vertical type circulating combustion biomass herein Grain fuel boiler；It is compact-sized（Integrated design）Cost-effective, high through two times of gasification after-combustion temperature, thermal-flame is in flue Body-internal-circulation is flowed, heat loss is small, operation when do not arrange black smoke.Saturated vapor can be quickly generated, it is energy saving.The utility model operates Safe and reliable to operation, maintaining is convenient.Boiler feed water and water level, steam pressure and granular fuel deliver into boiler can be certainly Dynamic control.

The utility model is realized in this way a kind of minitype vertical type circulating combustion biomass granular fuel boiler is constructed, It is characterized in that：It is inside of boiler body inside boiler components, fire grate is set in inside of boiler body, and the lower section of fire grate is primary air inlet Room, inlet air plenum connection deashing chamber, an inlet air plenum, fire grate top is primary combustion vaporizer, and c-type secondary wind inleting tube passes through floral disc It is connected to an inlet air plenum below fire grate and the primary combustion vaporizer above fire grate；Top inside inside of boiler body is upper Combustion gasification room, upper combustion gasification room middle part are equipped with high temperature insulating plate, are upper smoke-box, following in upper smoke-box above high temperature insulating plate Ring burning fire tube A is connect with floral disc enters smoke-box, the upper combustion gasification room of upper end connection of circulating combustion fire tube B, circulating combustion fire The lower end of pipe B connects floral disc, and upper smoke-box is equipped with ash discharging hole, and ash discharging hole is connected to the flue dust collector outside furnace body, is at the top of boiler Outlet flue, discharge flue gas unicom deduster carry out gas cleaning processing；Primary combustion vaporizer connect fuel conveyer system and Biomass fuel feedstock pipe, fuel conveyer system and biomass fuel feedstock pipe are respectively arranged with air inlet, above fire grate Primary combustion vaporizer is connected to upper combustion gasification room by trunnion.

According to minitype vertical type circulating combustion biomass granular fuel boiler described in the utility model, fuel enter internal furnace into Upper combustion gasification room is entered by trunnion again after row primary combustion gasification（Carry out second-time burning）, on the thermal-flame of gasification, and combustion It rises to internal furnace top and enters back into smoke-box under lower cycle fire tube flows into, and upper smoke-box, the upper indoor dust of cigarette are flowed to from lower smoke-box Flue dust collector can be blown into automatically to be discharged by cinder-discharging port.

The utility model discloses a kind of minitype vertical type, more backhauls, circulating combustion biomass granule fuel, packaged boiler.One Change design machinery air intake fuel and be directly entered boiler gasification, and combustion automatically, through being located at the burning of inner lining level-one vaporizer and two level gas After changing burning, combustion flame under the combustion-supporting effect of oxygen, is transformed into low-level oxidation thermal-flame by carburizing flame in air.The flame Up under 1600 DEG C of -1700 DEG C of conditions of high temperature, the abundant after-flame of combustible energy in flue gas, flame passes through two and gasifies the highest temperature It is reciprocal in boiler water interlayer further through fire tube after the high temperature that combustion chamber generates rises to inside of boiler body top, circulating combustion Flowing forms more backhauls.Using the utility model special construction, boiler thermal efficiency is up to 96.5% or more, energy saving 30-35%.

The utility model has the following advantages that：The utility model boiler bottom is equipped with primary and secondary air inlet, and secondary air is by more Root C-shaped air hose unicom lower part deashing chamber（Air compartment）If gasification combustion chamber in smoke-box and upper furnace, inside of boiler top sets heat-insulated Plate is upper smoke-box above thermal insulation board, and upper smoke-box is equipped with ash discharge dirt mouth, and dust enters dust arrestment device and is discharged by cinder-discharging port, top The flue gas of outlet flue discharge enters 2 grades of dedusters.

The utility model energy-saving and environmental protection, heat utilization rate are high, do not arrange black smoke, meet national requirements for environmental protection.Feature is as follows： The utility model uses twin-stage gasification, and combustion, combustion high temperature to form more backhauls in internal furnace, and cycle generates hyperthermia radiation or more around burning Internal furnace, recycles fire tube up and down, and heat utilization efficiency is high.Boiler generation saturated vapor is fast, compared with the biomass boiler of other structures, A large amount of fuel costs can be saved, with split structure（I.e. biomass combustion machine flame sprays into boiler furnace heating）It compares, then saves About operating fuel cost higher.A large amount of thermal energy has been lost because single high temperature generated with combustor ontology does not use, The portion temperature of combustor flame ejection is only utilized.

The utility model uses integrated design, flame to save fuel and cost of investment, not individually in boiler internal circulating combustion Separately match biomass combustion machine, energy saving, heat utilization efficiency is high, can quickly generate saturated vapor, and exhaust gas temperature is low, energy saving, pot Stove does not arrange black smoke when running, and meets national energy-saving, emission reduction environmental protection policy.

The utility model technology is related to field of boilers：And biomass combustion machine, it is especially that a kind of collection boiler closes 2 with combustor and is 1 design concept, biomass fuel are automatically fed into boiler furnace, by two times of gasification combustion, in air under the action of oxygen Become the process of the faint oxidizing flame of high temperature, combustion high temperature flame is circulated further through fire tube in boiler water interlayer, filled up and down Divide progress heat exchange that boiler is made quickly to generate saturated vapor, compared with plain edition, through type multitube biomass boiler same specification, this Novel 30-35% capable of saving fuel, when energy conservation and environmental protection, boiler operatiopn, do not arrange black smoke, meet national requirements for environmental protection.

Description of the drawings

Fig. 1 is the utility model front view；

Fig. 2 is the utility model vertical view；

Fig. 3 is the utility model left view；

Fig. 4 is the utility model vertical view.

Wherein：Inside of boiler body modular construction 1, smoke-box 2, c-type secondary wind inleting tube 3, floral disc 4, boiler components 5, furnace door 6, trunnion 7, upper combustion gasification room 8, circulating combustion fire tube B9, circulating combustion fire tube A10（Lower cycle fire tube）, high temperature insulating plate 11, upper smoke-box 12, outlet flue 13, ash discharging hole 14, flue dust collector 15, fuel conveyer system 16, biomass fuel feedstock pipe 17, inlet air plenum 18, deashing chamber 19, fire grate 20, air inlet 21.

Specific implementation mode

The utility model is described in detail below in conjunction with attached drawing 1- Fig. 4, to the skill in the utility model embodiment Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness The every other embodiment obtained under the premise of labour, shall fall within the protection scope of the present invention.

The utility model provides a kind of minitype vertical type circulating combustion biomass granular fuel boiler, mesh herein by improving Be to solve the problem of common biomass fuel boiler and combustor waste of energy, one kind is provided（Integrated design）By boiler Be merged one with burning, by primary and secondary gasification, circulating combustion biomass boiler, the utility model have instantaneously producing steam, It is energy saving, compared with traditional common biomass boiler, 30-40% capable of saving fuel, when boiler operatiopn, does not arrange black smoke.

The utility model is such reality, constructs a kind of more return cycle firing biomass fuel packaged boilers, including shell Components, inner lining modular construction part are equipped with once, second gasification combustion room part, upper and lower smoke-box dust discharge deashing part, Boiler foundation is entered the wind and allocation of the amount of air part, automatic feed part.

5 inside of boiler components is inside of boiler body 1, fire grate is arranged in inside of boiler body 1, the lower section of fire grate is primary air inlet Room, inlet air plenum connection deashing chamber 19, an inlet air plenum 18, fire grate top is primary combustion vaporizer, and c-type secondary wind inleting tube 3 is worn Floral disc 4 is crossed to be connected to an inlet air plenum below fire grate and the primary combustion vaporizer above fire grate；Inside inside of boiler body 1 Top is upper combustion gasification room 8, and 8 middle part of upper combustion gasification room is equipped with high temperature insulating plate 11, and 11 top of high temperature insulating plate is upper cigarette Room 12, the circulating combustion fire tube A10 in upper smoke-box 12 is connect with floral disc 4 enters smoke-box 2, and the upper end of circulating combustion fire tube B9 connects The lower end of upper combustion gasification room 8, circulating combustion fire tube B9 connects floral disc 4, and upper smoke-box 12 is equipped with ash discharging hole 14, ash discharging hole 14 and stove External flue dust collector 15 is connected to, and is outlet flue 13 at the top of boiler, and discharge flue gas unicom deduster carries out gas cleaning processing； Primary combustion vaporizer connects fuel conveyer system 16 and biomass fuel feedstock pipe 17, fuel conveyer system 16 and biology Matter fuel-feed pipe 17 is respectively arranged with air inlet, and the primary combustion vaporizer above fire grate is connected to upper combustion gas by trunnion 7 Change room 8.

The inner-tube structure more return cycles burning fire tube B9 connection inner linings upper combustion chamber 8, under circulating combustion fire tube B9 End connection floral disc 4, flue gas enter lower smoke-box 2, then recycle fire tube A10 and connect floral disc 4 and upper smoke-box 12 again.12 row of setting of upper smoke-box Flue dust is discharged into dust trap 15 by dirt nozzle 14, outlet flue 13 at upper smoke-box, and flue gas is inputted deduster purified treatment.

Shown boiler components 5 set up an office furnace door 6, and biomass fuel feedstock pipe 17 sets air inlet, fuel conveyer system 16 If fuel air inlet and mechanical drive department grade.

Shell components, example liquid level gauge, temperature gauge stand, steam discharge, Safety water seal nozzle etc. are not stated in detail herein, It is arranged by boiler normal safe operation specification.

Tap water is injected into boiler to peak level first when boiler operatiopn, is then turned on and send fuel machine automatically, input is few Amount fuel is layered on above fire grate, and lower furnace door in opening, by fire grate particles above fuel igniter by ignited fuel, fuel is opened Begin to close good closed fire door up and down after burning, opening hair-dryer and self-feeding, air quantity should match with feeding speed, and boiler is automatic Start normal operation.

Fuel enters the thermal-flame that boiler discharges after primary and secondary gasification, and combustion and rises on inner lining not, then Enter boiler bottom by fire tube, then rises to upper smoke-box at the top of boiler from boiler bottom by more fire tubes again, formed more times Journey circulating combustion, for the high temperature in more fire tubes in boiler water interlayer reciprocation cycle heat exchange, making full use of for thermal energy enables boiler Enough quickly to generate saturated vapor, boiler test is calculated for 20 DEG C the result shows that compared with plain edition biomass boiler with feed temperature, Since igniting, common traditional 25-30 minutes could boil.

As long as the utility model can quickly generate saturated vapor for 8-10 minutes, shorten about 2.5 times of heating time, saves combustion Expect 30-35%, granular fuel in burner hearth by a second gasification combustion after, the combustible in flue gas has reached sufficient combustion To the greatest extent, black smoke is not arranged when boiler operatiopn, smoke discharging temperature is low.

It is arranged in boiler accessories example according to property used in boiler：Water inlet liquid level gauge, pressure gauge base, Safety water seal and air-supply, In the present embodiment into fuel machine etc. and robot control system(RCS)（Shown in attached drawing 3）Without stating one by one.

The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest range consistent with features of novelty.

Claims (1)

1. a kind of minitype vertical type circulating combustion biomass granular fuel boiler, it is characterised in that：Boiler components（5）Inside is boiler Inner lining（1）, inside of boiler body（1）The lower section of interior setting fire grate, fire grate is an inlet air plenum, and one time inlet air plenum connects deashing chamber （19）, inlet air plenum（18）, fire grate top is primary combustion vaporizer, c-type secondary wind inleting tube（3）Across floral disc（4）With under fire grate Inlet air plenum of side is connected to the primary combustion vaporizer above fire grate；Inside of boiler body（1）Internal top is upper burning Vaporizer（8）, upper combustion gasification room（8）Middle part is equipped with high temperature insulating plate（11）, high temperature insulating plate（11）Top is upper smoke-box （12）, upper smoke-box（12）In circulating combustion fire tube A（10）With floral disc（4）Connection enters smoke-box（2）, circulating combustion fire tube B（9） The upper end upper combustion gasification room of connection（8）, circulating combustion fire tube B（9）Lower end connect floral disc（4）, upper smoke-box（12）Equipped with row Grey mouth（14）, ash discharging hole（14）With the flue dust collector outside furnace body（15）Connection, boiler top are outlet flue（13）, flue gas is discharged Unicom deduster carries out gas cleaning processing；Primary combustion vaporizer connects fuel conveyer system（16）With biomass fuel into Expects pipe（17）, fuel conveyer system（16）With biomass fuel feedstock pipe（17）Air inlet is respectively arranged with, above fire grate Primary combustion vaporizer passes through trunnion（7）Combustion gasification room in connection（8）.