CN107621080A

CN107621080A - The biomass fuel blast heater that can cool

Info

Publication number: CN107621080A
Application number: CN201710913935.2A
Authority: CN
Inventors: 苏明文
Original assignee: 台山市合利生物质科技有限公司
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2018-01-23
Also published as: CN107621080B

Abstract

The present invention relates to the biomass fuel blast heater that can cool, by being improved to air-heating unit, air is progressively heated by multiple heating spaces, is capable of the heat of preferably organism-absorbing matter fuel combustion, improves the effective rate of utilization of the heat energy of biomass fuel combustion；And by setting up temperature reducing unit, the temperature sensor detection leaving air temp being arranged at hot-blast outlet, outer triggering signal is received by trigger module simultaneously, elevating mechanism is controlled with the working condition for entering oxygen valve using the detection signal that outer triggering signal and temperature sensor input, namely the height of fuel is controlled by elevating mechanism, so that the flame of fuel combustion is closer or far from air-heating unit, and by controlling the oxygen supply control realized into oxygen valve to burning, so as to realize the regulation and control to leaving air temp, also there is cooling function, use demand can preferably be met, and can realize also can be so that air be heated to equal temperature using less biomass fuel.

Description

The biomass fuel blast heater that can cool

Technical field

The present invention relates to a kind of hot-blast stove, more particularly to a kind of biomass fuel blast heater to cool.

Background technology

Hot-blast stove is a kind of the chemical energy of conventional energy resource or electric energy to be converted into heat energy so that energy is supplied in the form of hot blast Corresponding equipment should be given, is usually used in drying machine, dryer, forming machine and heating etc..

Biomass fuel refers to that typically mainly agriculture and forestry organic waste material (such as stalk, is sawed using biological material burning as fuel End, bagasse, rice chaff etc.), and biomass fuel as fuel in use, need using agricultural waste as raw material, and pass through The techniques such as crushing, mixing, extruding and drying, various shapings are manufactured into (such as bulk, graininess etc.), the one kind that can directly burn Novel clean-fuel.

Therefore for the sustainable development of society, the existing fuel for being widely used biomass fuel as hot-blast stove, and make Obtaining biomass fuel can fully burn, and prevent the discharge of biomass fuel tar, had been developed for a kind of life at present Biomass fuel hot-blast stove.But existing biomass fuel hot air stove can not regulate and control to leaving air temp, cause leaving air temp mistake It is hot or too low, use demand can not be met well, and caused heat energy can not abundant quilt after the burning of biomass fuel Heating air is used in, heat energy loss is caused or even waste of fuel can be caused.

The content of the invention

To solve the shortcomings that above-mentioned prior art and deficiency, the invention provides a kind of biomass fuel hot blast to cool Equipment, leaving air temp can be regulated and controled, and there is cooling function, preferably meet use demand, and improve biomass fuel Expect the effective rate of utilization of the heat energy of burning, realizing also can be so that air be heated to equal temperature using less biomass fuel Degree.

A kind of biomass fuel blast heater to cool, including body of heater, inner bag, combustion bin, Bunker, oxygen supply and drum Blower fan；Also include air-heating unit, elevating mechanism and heat control unit；

The body of heater is provided with cold wind import, hot-blast outlet, charging aperture and oxygen feeder；The hot-blast outlet is provided with a temperature Sensor；

The inner bag is arranged in the body of heater, and the space between its outer wall and inboard wall of furnace body forms heating chamber；In described The body of heater is penetrated at the top of courage, and offers exhaust opening；

The air-heating unit, combustion bin and Bunker are set gradually from top to bottom, and the air-heating unit bag Include and be provided with air outlet and at least heated shell of an air inlet and multiple heat conducting walls；The air inlet of the heated shell passes through One air-guiding aisle is connected with the heating chamber, and its air outlet is connected by an air-guiding aisle with the hot-blast outlet；It is the multiple Heat conducting wall is staggeredly arranged at intervals in the heated shell successively from top to bottom, one end and the heated shell side of each heat conducting wall Inwall connects, and the space between the other end and heated shell opposite side inwall forms interface channel；And per adjacent two heat conducting wall it Between space form a heating space, the heat conducting wall positioned at top and the heat conducting wall positioned at bottommost respectively with heated shell Space between inner top surface and inner bottom surface forms a heating space, and is led to per adjacent two heating spaces by connection between the two Road connects；All heating spaces and all interface channels are collectively forming the air of only at least one air inlet and an air outlet Heat passage；

The combustion bin is connected by a feed pipe with the charging aperture, and with connecting inside the Bunker inside combustion bin It is logical；

The grate for accepting fuel is provided with the Bunker, the bottom of the grate and the line shaft of the elevating mechanism drive Dynamic connection, and the grate can be driven and be pumped by the elevating mechanism, be realized to fuel combustion amount and burning The control of flame height；

The oxygen supply is arranged at the opening of the combustion bin, and its oxygen intake passes through a pipeline and the oxygen feeder Connect, being provided with one in the oxygen feeder enters oxygen valve；

The air blower is arranged at outside body of heater, and its air outlet is connected by the cold wind import with the heating chamber；

The temperature reducing unit is arranged at the hot-blast outlet periphery, and it includes cool housing and an at least cooling machine Structure；The cooling enclosure interior is hollow heat-dissipating cavity, and its left and right sides offers what is connected with the heat-dissipating cavity respectively Hot wind inlet and terminal hot-blast outlet, the hot wind inlet connect with the hot-blast outlet, and are opened at the top of the cooling housing Provided with multiple thermal vias；The thermal vias connects with the heat-dissipating cavity, and each thermal vias is provided with radiating valve；Often One cooling mechanism includes drive mechanism and heat absorption dividing plate；The drive mechanism is arranged at outside the cooling housing；The suction Hot dividing plate one end and the drive mechanism drive connection, the other end is through the cooling housing and can extend into or out the cooling Housing；

The heat control unit includes trigger module and control module；The trigger module is used to receive external trigger letter Number, and send to the control module；The control module and the temperature sensor, elevating mechanism, drive mechanism, each dissipate Thermal valve door electrically connects with oxygen valve is entered；The control module controls according to the detection signal of outer triggering signal and temperature sensor The elevating mechanism, drive mechanism, each radiating valve and the working condition for entering oxygen valve.

Thus, the present invention to air-heating unit by being improved so that air, which can pass through multiple heating spaces, to be carried out Progressively heat, be capable of the heat of preferably organism-absorbing matter fuel combustion, improve effective profit of the heat energy of biomass fuel combustion With rate；And by setting up temperature reducing unit, and the temperature sensor detection leaving air temp at hot-blast outlet is arranged at, while by touching Send out module and receive outer triggering signal, using the detection signal that outer triggering signal and temperature sensor input to elevating mechanism and The working condition for entering oxygen valve is controlled, namely the height of fuel is controlled by elevating mechanism so that the flame of fuel combustion Closer or far from air-heating unit, a kind of regulation and control of heating-up temperature are realized, and are realized by controlling into oxygen valve to burning Oxygen supply control, also realizes the control to the intensity of a fire in another aspect；So as to realize the regulation and control to leaving air temp, also have Cooling function, it can preferably meet use demand, and can realize also can be so that air heats using less biomass fuel To equal temperature.

Further, it is described enter oxygen valve be air flow control valve；The control module is to elevating mechanism, driving machine The control of structure, each radiating valve and the working condition for entering oxygen valve comprises the following steps：

Step 1：Outer triggering signal is received, and outer triggering signal is handled to obtain required hot blast temperature；Receive detection Signal, and detection signal is handled to obtain current hot blast temperature；

Step 2：Temperature gap between hot blast temperature needed for calculating and current hot blast temperature；If temperature gap is zero, Then keep elevating mechanism and enter the current working condition of oxygen valve；If temperature gap is negative value, step 3 is performed；Otherwise, hold Row step 4；

Step 3：Control the air blower out of service and it is described enter oxygen valve close, and the absolute value of C.T difference With the size of default cooling threshold value, if the absolute value of temperature gap is more than default cooling threshold value, drive mechanism is controlled Driving heat absorption dividing plate is fully inserted into the cooling housing, while controls all radiating valve openings；Otherwise, drive mechanism is controlled Driving heat absorption dividing plate is stretched out in cooling housing, while controls all or part of radiating valve opening；

Step 4：Call the control data table to prestore；The control data table is preserved temperature gap and adjustable height and entered Oxygen amount relation, and the relation of temperature gap and oxygen feeding amount；C.T difference and the size of default temperature difference threshold, if temperature Difference is less than temperature difference threshold, then enters according to the Relation acquisition in control data table between temperature gap and oxygen feeding amount is current desired Oxygen amount value, and controlled according to the oxygen feeding amount value into oxygen valve；If temperature gap is more than temperature difference threshold, according to control data table The current desired fuel height of Relation acquisition between middle temperature gap and adjustable height and oxygen feeding amount and amount of oxygen, and according to this Fuel height and amount of oxygen control elevating mechanism and enter oxygen valve respectively.

By the above rate-determining steps of control module, control module sets required hot blast temperature and temperature by trigger module Spend sensor and detect current hot blast temperature, and the gap needed for utilizing between hot blast temperature and current hot blast temperature and realize to combustion Expect the control of combustion case, can be according to actually removing regulating and controlling temperature --- rise temperature and temperature is reduced, be advantageous to preferably carry The utilization rate of high fuel combustion and it is more suitable for use demand.

Further, the biomass fuel blast heater that the present invention can cool also includes the waste residue recovery for being provided with recovery entrance Groove；And the lower portion of furnace body offers fire door；The waste residue accumulator tank is arranged in the body of heater, and is located at the grate Lower section, it reclaims entrance face towards the grate, and it can be extend out to outside body of heater from the fire door.By limiting herein, side Just to the recovery of caused waste residue after biomass fuel combustion so that the cleaning of body of heater more aspect, reduce cleaning burden.

Further, the biomass fuel blast heater that the present invention can cool also includes two recovery slide rails and two assembly pulleys；Institute The inwall opposite sides that two recovery slide rails are relatively arranged on the body of heater is stated, two assembly pulley is respectively arranged at the waste residue and returned Receive the outer wall opposite sides of groove；The waste residue accumulator tank by two assembly pulley be arranged at it is described two recovery slide rail between, and The reciprocating motion outside fire door and entered in body of heater can be extend out to along two recovery slide rails.By limiting herein, further facilitate Waste residue accumulator tank is removed and placed into operation, so as to reduce work burden.

Further, the biomass fuel blast heater that the present invention can cool also includes heated barrier；The heated barrier frame Between the exhaust opening and the air-heating unit, and it offers multiple exhaust smoke holes, and one is provided with each exhaust smoke hole Smoke evacuation one-way cock；All smoke evacuation one-way cocks electrically connect with the control module, during by control module according to default smoke evacuation Between Separation control its opening and closing；And the inner bag by heated barrier be divided into smoke evacuation section above heated barrier and Insulation section below heated barrier；When all smoke evacuation one-way cocks of control module control are closed, the heating every Plate cut-off smoke evacuation section and insulation section, insulation section is closed section；The smoke evacuation check valve of control module control at least one When door is opened, the smoke evacuation section connects with soak zones, and insulation section is open section.By limiting herein, be advantageous to profit Heating shell of the high-temperature flue gas further to air-heating unit heats caused by burning, so as to further be lifted to life The utilization of heat energy, further reduces fuel consumption caused by biomass fuel burning.

Further, the biomass fuel blast heater that the present invention can cool also includes air exhauster；The air exhauster is arranged at At the exhaust opening.By limiting herein, be advantageous to accelerate the discharge of flue gas caused by burning, avoid the excessive overrich of flue gas and shadow Ring burning.

Further, the biomass fuel blast heater that the present invention can cool also includes a gas cleaning unit；The flue gas Clean unit is arranged between the air exhauster and the air-heating unit.By limiting herein, be advantageous to biomass fuel After flue gas caused by material burning is purified, it is then exhausted to outdoor, reduces the pollution to environment.

Further, the wall of the air-guiding aisle between the air outlet of the air-heating unit and body of heater hot-blast outlet includes Heat-insulation layer, vacuum layer and the heat-insulation layer inside set gradually outward.By limiting herein, the air after by heating is advantageously ensured that During being sent to outside hot-blast outlet, the loss of atmospheric heat is reduced.

Further, the heated shell of the air-heating unit is provided with two air inlets；Two air inlet is relatively arranged on One positioned at top heats the opposite sides in space, and is connected respectively by an air-guiding aisle with the heating chamber；It is described go out Air port is arranged at positioned at the one of the bottommost side for heating space.By limiting herein, advantageously ensure that and flow into air heating list The air capacity of member, also, because hot-air rises, cold air sinks, and the bottom of air-heating unit is closer to burning things which may cause a fire disaster, tool There is higher temperature, and air inlet and air outlet are setting up and down, being so advantageous to can be quick from the cold air that air inlet enters Sink and exported after being heated from air outlet.

Further, the cold wind import and the hot-blast outlet are relatively arranged on the bottom opposite sides of the body of heater.It is logical Cross and limit herein, be advantageous to improve the interactive speed between hot-air and cold air.

In order to more fully understand and implement, the invention will now be described in detail with reference to the accompanying drawings.

Brief description of the drawings

Fig. 1 is the cross section structure diagram for the biomass fuel blast heater that the present invention can cool；

Fig. 2 is initial position of the temperature reducing unit in its dividing plate that absorbs heat of the present invention, i.e., is not to stretch into when in cooling housing Cross section structure diagram；

Fig. 3 is sectional structure signal of the temperature reducing unit of the present invention when its dividing plate that absorbs heat is fully inserted into cooling housing Figure；

Fig. 4 is contained with structural representation during biomass fuel for the biomass fuel blast heater to cool in Fig. 1；

Fig. 5 controls grate to drive biomass for the elevating mechanism of the biomass fuel blast heater to cool in Fig. 4 Schematic diagram after fuel rising；

Fig. 6 is the structural representation after the biomass fuel blast heater to cool in Fig. 1 further improves；

Fig. 7 is the structural representation after the biomass fuel blast heater to cool in Fig. 6 further improves；

Fig. 8 is the structural representation after the biomass fuel blast heater to cool in Fig. 7 further improves.

Embodiment

It is to be appreciated that in the description of the invention, unless otherwise indicated, " multiple " be meant that two or two with On.

Referring to Fig. 1, the invention provides a kind of biomass fuel blast heater to cool, it includes body of heater 1, inner bag 2nd, combustion bin 3, Bunker 4, oxygen supply 5, air blower 6, air-heating unit 7, elevating mechanism 8 and heat control unit.

The body of heater 1 is provided with cold wind import 11, hot-blast outlet 12, charging aperture 13 and oxygen feeder 14；The hot-blast outlet 12 It is provided with a temperature sensor 9.

The inner bag 2 is arranged in the body of heater 1, and the space between its outer wall and the inwall of body of heater 1 forms heating chamber A；Institute State the top of inner bag 2 and penetrate the body of heater 1, and offer exhaust opening 21.

The air-heating unit 7, combustion bin 3 and Bunker 4 are set gradually from top to bottom, and the air-heating unit 7 include heated shell 71 and multiple heat conducting walls 72 provided with air outlet 711 and an at least air inlet.The heated shell 71 Air inlet connected by an air-guiding aisle with the heating chamber A, its air outlet 711 passes through an air-guiding aisle D1 and the hot blast The connection of outlet 12.The multiple heat conducting wall 72 is staggeredly arranged at intervals in the heated shell 71 successively from top to bottom, each to lead One end of hot wall is connected with the side inwall of heated shell 71, and the space between the other end and the opposite side inwall of heated shell 71 is formed Interface channel；And the space between every adjacent two heat conducting wall forms a heating space, positioned at the heat conducting wall of top and positioned at most The space between the inner top surface and inner bottom surface of heated shell 71 forms a heating space to the heat conducting wall of bottom respectively, and per adjacent Two heating spaces are connected by interface channel between the two.Thus all heating spaces and all interface channels are collectively forming only There is the air heating passage of at least one air inlet and an air outlet 711.

The combustion bin 3 is connected by a feed pipe D4 with the charging aperture 13, and the inside of combustion bin 3 and the Bunker 4 inside connect.

The grate 41 for accepting fuel is provided with the Bunker 4, the bottom of the grate 41 is dynamic with the elevating mechanism 8 Power axle drive connection, and the grate 41 can be driven and be pumped by the elevating mechanism 8, be realized to fuel combustion The control of amount and Combustion flame height.

The oxygen supply 5 is arranged at the opening of the combustion bin 3, and its oxygen intake by a pipeline D5 with it is described enter Oxygen mouth 14 connects, and being provided with one in the oxygen feeder 14 enters oxygen valve.

The air blower 6 is arranged at outside body of heater 1, and its air outlet is connected by the cold wind import 11 and the heating chamber A It is logical.

Fig. 1~Fig. 3 is referred to, the temperature reducing unit 40 is arranged at the periphery of hot-blast outlet 12, and it includes the housing that cools 401 and at least one cooling mechanism；The inside of cooling housing 401 is hollow heat-dissipating cavity, and its left and right sides is opened respectively Provided with the hot wind inlet 402 and terminal hot-blast outlet 403 connected with the heat-dissipating cavity, the hot wind inlet 402 and the heat The connection of wind outlet 12, and the top of the cooling housing 401 offers multiple thermal vias 404；The thermal vias with it is described Heat-dissipating cavity connects, and each thermal vias is provided with radiating valve.Each cooling mechanism includes drive mechanism 405 and heat absorption Dividing plate 406；The drive mechanism 405 is arranged at outside the cooling housing 401；Described heat absorption one end of dividing plate 406 and the driving The drive connection of mechanism 405, the other end is through the cooling housing 401 and can extend into or out the cooling housing 401.In this reality Apply in example, the temperature reducing unit 40 includes the cooling mechanism of structure identical two (40A and 40B).

The heat control unit includes trigger module and control module；The trigger module is used to receive external trigger letter Number, and send to the control module.The control module and the temperature sensor 9, elevating mechanism 8, each drive mechanism 405th, it is each radiating valve and enter oxygen valve electrical connection；The control module is according to outer triggering signal and temperature sensor 9 Detection signal controls the elevating mechanism 8, each drive mechanism 405, each radiating valve and the working condition for entering oxygen valve.

In the present embodiment, in order to improve to hot blast temperature regulation and control it is intelligent, it is preferable that it is described enter oxygen valve be air Flow control valve.

Thus, during work, air blower 6 starts, it is necessary to which the air outlet of the cold air heated from air blower 6 enters heating chamber In A, cold air is gradually increasing after heating chamber A heating and entered from the air inlet of air-guiding aisle and heated shell 71 described In air-heating unit 7, and the heat of passage draw air heating passage and the heat of each heat conducting wall, shape are heated along air Into hot-air；Hot-blast outlet 12 is flowed out to from the air outlet 711 and air-guiding aisle D1 of air-heating unit 7 immediately, realizes hot blast Output.In this course of work, control module is according to controlling the detection signal of outer triggering signal and temperature sensor 9 Elevating mechanism 8, two drive mechanisms, each radiating valve and the working condition for entering oxygen valve, its control comprise the following steps：

Step 1：Outer triggering signal is received, and outer triggering signal is handled to obtain required hot blast temperature；Receive detection Signal, and detection signal is handled to obtain current hot blast temperature；Wherein, outer triggering signal is inputted by trigger module, And trigger module can be made up of control button and display screen or touch-screen, when in use, human hand key can be passed through Enter and say desired hot blast temperature；

Step 2：Temperature gap between hot blast temperature needed for calculating and current hot blast temperature；If temperature gap is zero, Then keep elevating mechanism 8 and enter the current working condition of oxygen valve；If temperature gap is negative value, step 3 is performed；Otherwise, Perform step 4；

Step 3：Control the air blower 6 out of service and it is described enter oxygen valve close, and C.T difference is absolute The size of value and default cooling threshold value, if the absolute value of temperature gap is more than default cooling threshold value, controls each drive The driving heat absorption dividing plate 406 of motivation structure 405 is fully inserted into the cooling housing 401, as shown in figure 3, controlling whole radiatings simultaneously Valve opening；Otherwise, each driving of drive mechanism 405 heat absorption dividing plate 406 is controlled to stretch out in cooling housing 401, as shown in Fig. 2 All or part of radiating valve opening is controlled simultaneously；Thus, the hot-air by radiating valve opening to make in temperature reducing unit 40 Heat exchange is carried out with extraneous air, so as to reduce the air themperature in temperature reducing unit 40, realizes cooling；

Step 4：Call the control data table to prestore；The control data table is preserved temperature gap and adjustable height and entered Oxygen amount relation, and the relation of temperature gap and oxygen feeding amount；C.T difference and the size of default temperature difference threshold, if temperature Difference is less than temperature difference threshold, then enters according to the Relation acquisition in control data table between temperature gap and oxygen feeding amount is current desired Oxygen amount value, and controlled according to the oxygen feeding amount value into oxygen valve；If temperature gap is more than temperature difference threshold, according to control data table The current desired fuel height of Relation acquisition between middle temperature gap and adjustable height and oxygen feeding amount and amount of oxygen, and according to this Fuel height and amount of oxygen control elevating mechanism 8 and enter oxygen valve respectively.Wherein, control data table is according to substantial amounts of experiment number According to what is obtained, similar to such, gained after mass data statistics and repeatedly adjustment that builds up process of grader, its is specific The technological means arrived is identical with prior art means, herein without repeating.

In above-mentioned steps, the process progress acted below to control module control elevating mechanism 8 is schematically illustrate, please Refering to Fig. 4 and Fig. 5, when temperature gap is negative value, represent that current hot blast temperature is higher than required hot blast temperature, then control module control Elevating mechanism 8 processed drops to extreme lower position, namely opening position as shown in Figure 4；And when temperature gap be on the occasion of when, and pass through tune Need control elevating mechanism 8 to carry out stretching motion with control data table determination and drive fuel to rise to certain height, so that Air-heating unit 7 be more nearly thermal source and increase fuel combustion amount, control module control elevating mechanism 8 line shaft according to The current stroke that stretches out is run to certain height, drives fuel R to rise, opening position as shown in Figure 5.Wherein, " extension is worked as Go out stroke " be obtained by inquire about control data table and obtain.

To ensure to flow into the air capacity of air-heating unit 7, as a kind of more excellent technical scheme, please continue to refer to Fig. 1, The heated shell 71 of the air-heating unit 7 is provided with two air inlets (712 and 713).Two air inlet (the 712 and 713) phase To be arranged at be located at top one heating space B 1 opposite sides, and respectively by air-guiding aisle D2 and air-guiding aisle D3 with Heating chamber A is connected；The air outlet 711 is arranged at positioned at the one of the bottommost side for heating space B 2.Because hot-air rises, Cold air sinks, and the bottom of air-heating unit 7 has higher temperature, pass through air inlet and air-out closer to burning things which may cause a fire disaster Mouthfuls 711 setting up and down, is advantageous to export from air outlet 711 after quickly can sinking to being heated from the cold air that air inlet enters.

To improve the interactive speed between hot-air and cold air, it is preferable that referring to Fig. 1, the He of the cold wind import 11 The hot-blast outlet 12 is relatively arranged on the bottom opposite sides of the body of heater 1.

Further, to ensure during the air after by heating is sent to outside hot-blast outlet 12, reduction atmospheric heat Loss, as a kind of more excellent technical scheme, the air outlet 711 and the hot-blast outlet 12 of body of heater 1 of the air-heating unit 7 it Between air-guiding aisle D1 wall include interior heat-insulation layer, vacuum layer and the heat-insulation layer set gradually outward.

For the benefit of the heating shell using high-temperature flue gas caused by burning further to air-heating unit 7 heats, So as to further lift the utilization to heat energy caused by biomass fuel combustion, fuel consumption is further reduced, as one kind more Excellent technical scheme, referring to Fig. 6, the biomass fuel blast heater that the present invention can cool also includes heated barrier 10；It is described Heated barrier 10 is set up between the exhaust opening 21 and the air-heating unit 7, and it offers multiple exhaust smoke holes 101, A smoke evacuation one-way cock is provided with each exhaust smoke hole；All smoke evacuation one-way cocks electrically connect with the control module, by control mould Root tuber is according to default its opening and closing of smoke evacuation time interval controls；And the inner bag 2 is divided into positioned at heating by heated barrier 10 The smoke evacuation section and the insulation section below heated barrier 10 of the top of dividing plate 10；All smoke evacuations of control module control are single When being closed to valve, the cut-off of the heated barrier 10 smoke evacuation section and insulation section, insulation section is closed section；The control When the smoke evacuation one-way cock of module control at least one is opened, the smoke evacuation section connects with soak zones, and insulation section is open zone Between.Wherein, default smoke evacuation time interval can obtain from actual experiment, that is, the biomass fuel that can be cooled based on the present invention Blast heater, test and drawn in combustion, burning will not also have been caused in the burning regular hour without discharging fume Influence, and being burned to a time can cause combustion efficiency bad without smoke evacuation, then the smoke evacuation time interval is burning Afterwards without discharging fume without that to the burn time duration threshold value that impacts of burning, can also take other values less than the threshold value, therefore The smoke evacuation time interval occurrence is not limited in the present embodiment.

For convenience of the recovery to caused waste residue after biomass fuel combustion so that the cleaning of body of heater 1 more aspect, reduce Cleaning burden, as a kind of more excellent technical scheme, please continue to refer to Fig. 6, the biomass fuel hot blast that the present invention can cool is set The standby waste residue accumulator tank for also including being provided with recovery entrance；And the bottom of body of heater 1 offers fire door 15, in the fire door 15 It is provided with a fire door.The waste residue accumulator tank is arranged in the body of heater 1, and positioned at the lower section of grate 41, it reclaims entrance Face is towards the grate 41, and it can be extend out to outside body of heater 1 from the fire door 15.

To further facilitate the operation that is removed and placed into of waste residue accumulator tank, work burden is reduced, as a kind of more excellent skill Art scheme, the biomass fuel blast heater that the present invention can cool also include two recovery slide rails and two assembly pulleys；Two recovery Slide rail is relatively arranged on the inwall opposite sides of the body of heater 1, and two assembly pulley is respectively arranged at the waste residue accumulator tank Outer wall opposite sides；, and can be along two between the waste residue accumulator tank is arranged at the two recovery slide rail by two assembly pulley Recovery slide rail extend out to outside fire door 15 and enters to the reciprocating motion in body of heater 1.

To accelerate the discharge of flue gas caused by burning, avoid the excessive overrich of flue gas and influence to burn, as a kind of more excellent Technical scheme, referring to Fig. 7, the biomass fuel blast heater that the present invention can cool also includes air exhauster 20；The air exhauster 20 are arranged at the exhaust opening 21.

After being advantageous to flue gas purifies caused by biomass fuel combustion, it is then exhausted to outdoor, reduces to environment Pollution, as a kind of more excellent technical scheme, it is net that biomass fuel blast heater that the present invention can cool also includes a flue gas Change unit 30；The gas cleaning unit 30 is arranged between the air exhauster 20 and the air-heating unit 7.And based on The biomass fuel blast heater to cool in Fig. 7, the gas cleaning unit 30 are arranged at the air exhauster 20 and heating Between dividing plate 10, as shown in Figure 8.

In the present embodiment, the elevating mechanism 8 and each drive mechanism be electric pushrod or electric cylinder or it is other can To carry out the drive mechanism of linear reciprocating motion.Wherein, the quantity of elevating mechanism can be set according to actual use demand, can To be worked asynchronously with multiple elevating mechanisms, the weight of fuel and grate 41 is born jointly, sharing for heavy burden is realized, improves motion Stability and the service life for extending elevating mechanism.

In addition, in other variant embodiments, outer triggering signal can also include controlling whole blast heater open or Close release the button and X button, only release the button closure when, this equipment can just be run, and X button close When, this equipment is out of service.

In addition, in the present embodiment, air blower 6 and oxygen supply 5 are controlled by the heat control unit 7, and in other changes In shape embodiment, the working condition of air blower 6 and oxygen supply 5 can be controlled with another controller.

Relative to prior art, the biomass fuel blast heater that the present invention can cool to air-heating unit by carrying out Improve so that air can pass through multiple heating spaces and progressively be heated, and be capable of the heat of preferably organism-absorbing matter fuel combustion Amount, improve the effective rate of utilization of the heat energy of biomass fuel combustion；And by setting up temperature reducing unit, and be arranged at hot-blast outlet Temperature sensor detection leaving air temp, while outer triggering signal is received by trigger module, using outer triggering signal and The detection signal of temperature sensor input is controlled to elevating mechanism with the working condition for entering oxygen valve, namely passes through lift Structure controls the height of fuel so that the flame of fuel combustion realizes one kind of heating-up temperature closer or far from air-heating unit Regulation and control, and realize that the oxygen supply to burning controls by controlling into oxygen valve, also realized to the intensity of a fire in another aspect Control；So as to realize the regulation and control to leaving air temp, also with cooling function, it can preferably meet use demand, and can realize Also air can be caused to be heated to equal temperature using less biomass fuel.

Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.

Claims

1. a kind of biomass fuel blast heater to cool, including body of heater, inner bag, combustion bin, Bunker, oxygen supply and air blast Machine, it is characterised in that：Also include air-heating unit, elevating mechanism, temperature reducing unit and heat control unit；

The body of heater is provided with cold wind import, hot-blast outlet, charging aperture and oxygen feeder；The hot-blast outlet is provided with a TEMP Device；

The inner bag is arranged in the body of heater, and the space between its outer wall and inboard wall of furnace body forms heating chamber；The inner bag top Portion penetrates the body of heater, and offers exhaust opening；

The air-heating unit, combustion bin and Bunker are set gradually from top to bottom, and the air-heating unit includes setting There are air outlet and at least heated shell of an air inlet and multiple heat conducting walls；The air inlet of the heated shell is led by one Wind passage is connected with the heating chamber, and its air outlet is connected by an air-guiding aisle with the hot-blast outlet；The multiple heat conduction Wall is staggeredly arranged at intervals in the heated shell successively from top to bottom, one end and the heated shell side inwall of each heat conducting wall Connection, the space between the other end and heated shell opposite side inwall form interface channel；And between every adjacent two heat conducting wall Space forms a heating space, the heat conducting wall positioned at top and the heat conducting wall positioned at the bottommost interior top with heated shell respectively Space between face and inner bottom surface forms a heating space, and is connected per adjacent two heating spaces by interface channel between the two It is logical；All heating spaces and all interface channels are collectively forming the air heating of only at least one air inlet and an air outlet Passage；

The combustion bin is connected by a feed pipe with the charging aperture, and with being connected inside the Bunker inside combustion bin；

The grate for accepting fuel is provided with the Bunker, the bottom of the grate and the line shaft driving of the elevating mechanism connect Connect, and the grate can be driven and be pumped by the elevating mechanism, be realized to fuel combustion amount and combustion flame The control of height；

The oxygen supply is arranged at the opening of the combustion bin, and its oxygen intake is connected by a pipeline and the oxygen feeder It is logical, it is provided with one in the oxygen feeder and enters oxygen valve；

The temperature reducing unit is arranged at the hot-blast outlet periphery, and it includes cool housing and an at least cooling mechanism；Institute It is hollow heat-dissipating cavity to state cooling enclosure interior, and its left and right sides offers the hot blast connected with the heat-dissipating cavity and entered respectively Mouth and terminal hot-blast outlet, the hot wind inlet connect with the hot-blast outlet, and are offered at the top of the cooling housing more Individual thermal vias；The thermal vias connects with the heat-dissipating cavity, and each thermal vias is provided with radiating valve；Each cooling Cooling mechanism includes drive mechanism and heat absorption dividing plate；The drive mechanism is arranged at outside the cooling housing；The heat absorption dividing plate One end and the drive mechanism drive connection, the other end is through the cooling housing and can extend into or out the cooling housing；

The heat control unit includes trigger module and control module；The trigger module is used to receive outer triggering signal, And send to the control module；The control module and the temperature sensor, elevating mechanism, drive mechanism, each radiating Valve electrically connects with oxygen valve is entered；The control module controls institute according to the detection signal of outer triggering signal and temperature sensor State elevating mechanism, drive mechanism, each radiating valve and the working condition for entering oxygen valve.

2. the biomass fuel blast heater according to claim 1 to cool, it is characterised in that：It is described enter oxygen valve be Air flow control valve；The control module is to elevating mechanism, drive mechanism, each radiating valve and the work for entering oxygen valve The control of state comprises the following steps：

Step 2：Temperature gap between hot blast temperature needed for calculating and current hot blast temperature；If temperature gap is zero, protect Hold elevating mechanism and enter the current working condition of oxygen valve；If temperature gap is negative value, step 3 is performed；Otherwise, step is performed Rapid 4；

Step 3：Control the air blower out of service and it is described enter oxygen valve close, and the absolute value of C.T difference with it is pre- If cooling threshold value size, if the absolute value of temperature gap is more than default cooling threshold value, control drive mechanism driving Heat absorption dividing plate is fully inserted into the cooling housing, while controls all radiating valve openings；Otherwise, drive mechanism driving is controlled The dividing plate that absorbs heat is stretched out in cooling housing, while controls all or part of radiating valve opening；

Step 4：Call the control data table to prestore；The control data table preserves temperature gap and adjustable height and oxygen feeding amount Relation, and the relation of temperature gap and oxygen feeding amount；C.T difference and the size of default temperature difference threshold, if temperature gap Less than temperature difference threshold, then according to the current desired oxygen feeding amount of the Relation acquisition in control data table between temperature gap and oxygen feeding amount Value, and controlled according to the oxygen feeding amount value into oxygen valve；If temperature gap is more than temperature difference threshold, according to control data table medium temperature The current desired fuel height of the Relation acquisition spent between difference and adjustable height and oxygen feeding amount and amount of oxygen, and according to the fuel Height and amount of oxygen control elevating mechanism and enter oxygen valve respectively.

3. the biomass fuel blast heater according to claim 1 or 2 to cool, it is characterised in that：Also include being provided with Reclaim the waste residue accumulator tank of entrance；And the lower portion of furnace body offers fire door；The waste residue accumulator tank is arranged at the body of heater It is interior, and below the grate, it reclaims entrance face towards the grate, and it can extend out to body of heater from the fire door Outside.

4. the biomass fuel blast heater according to claim 3 to cool, it is characterised in that：Also include two recovery to slide Rail and two assembly pulleys；The two recovery slide rail is relatively arranged on the inwall opposite sides of the body of heater, the two assembly pulleys difference It is arranged at the outer wall opposite sides of the waste residue accumulator tank；The waste residue accumulator tank is arranged at described two by two assembly pulley Between reclaiming slide rail, and the reciprocating motion outside fire door and entered in body of heater can be extend out to along two recovery slide rails.

5. the biomass fuel blast heater according to claim 1 or 2 to cool, it is characterised in that：Also include heating Dividing plate；The heated barrier is set up between the exhaust opening and the air-heating unit, and it offers multiple exhaust smoke holes, A smoke evacuation one-way cock is provided with each exhaust smoke hole；All smoke evacuation one-way cocks electrically connect with the control module, by control mould Root tuber is according to default its opening and closing of smoke evacuation time interval controls；And the inner bag by heated barrier be divided into positioned at heating every Smoke evacuation section above plate and the insulation section below heated barrier；

When all smoke evacuation one-way cocks of control module control are closed, the heated barrier cut-off smoke evacuation section and heat preservation zone Between, insulation section is closed section；When the smoke evacuation one-way cock of control module control at least one is opened, the smoke evacuation section and Soak zones connect, and insulation section is open section.

6. the biomass fuel blast heater according to claim 1 or 2 to cool, it is characterised in that：Also include exhausting Machine；The air exhauster is arranged at the exhaust opening.

7. the biomass fuel blast heater according to claim 6 to cool, it is characterised in that：It is net also to include a flue gas Change unit；The gas cleaning unit is arranged between the air exhauster and the air-heating unit.

8. the biomass fuel blast heater according to claim 1 to cool, it is characterised in that：The air heating is single The wall of air-guiding aisle between the air outlet and body of heater hot-blast outlet of member includes the interior heat-insulation layer set gradually outward, vacuum layer And heat-insulation layer.

9. the biomass fuel blast heater according to claim 1 to cool, it is characterised in that：The air heating is single The heated shell of member is provided with two air inlets；Two air inlet, which is relatively arranged on, heats relative the two of space positioned at the one of top Side, and connected respectively by an air-guiding aisle with the heating chamber；The air outlet is arranged at the heating sky positioned at bottommost Between side.

10. the biomass fuel blast heater according to claim 9 to cool, it is characterised in that：The cold wind import The bottom opposite sides of the body of heater is relatively arranged on the hot-blast outlet.