CN107676972A - A kind of biomass fuel blast heater - Google Patents

A kind of biomass fuel blast heater Download PDF

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Publication number
CN107676972A
CN107676972A CN201710913878.8A CN201710913878A CN107676972A CN 107676972 A CN107676972 A CN 107676972A CN 201710913878 A CN201710913878 A CN 201710913878A CN 107676972 A CN107676972 A CN 107676972A
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CN
China
Prior art keywords
air
heater
oxygen
blast
biomass fuel
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CN201710913878.8A
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Chinese (zh)
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CN107676972B (en
Inventor
苏明文
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台山市合利生物质科技有限公司
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Priority to CN201710913878.8A priority Critical patent/CN107676972B/en
Publication of CN107676972A publication Critical patent/CN107676972A/en
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Publication of CN107676972B publication Critical patent/CN107676972B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H3/00Air heaters having heat generating means
    • F24H3/02Air heaters having heat generating means with forced circulation
    • F24H3/06Air heaters having heat generating means with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/067Air heaters having heat generating means with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using solid combustibles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates, burners, or heating elements
    • F24H9/1854Arrangement or mounting of grates, burners, or heating elements for air heaters
    • F24H9/189Arrangement or mounting of grates, burners, or heating elements for air heaters solid combustible heating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/20Arrangement or mounting of control or safety devices or methods
    • F24H9/2064Arrangement or mounting of control or safety devices or methods for air heaters
    • F24H9/2092Arrangement or mounting of control or safety devices or methods for air heaters for heaters using solid combustibles

Abstract

The present invention relates to a kind of biomass fuel blast heater, 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 improving the structure of grate, set up two groups of elevating mechanisms, temperature sensor and trigger module, 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 burning total amount and height of fuel are controlled by elevating mechanism, so that partially or fully 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, 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

A kind of biomass fuel blast heater

Technical field

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

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 blast heater, energy It is enough that leaving air temp is regulated and controled, preferably meet use demand, and improve effective utilization of the heat energy of biomass fuel combustion Rate, realizing also can be so that air be heated to equal temperature using less biomass fuel.

A kind of biomass fuel blast heater, including body of heater, inner bag, combustion bin, Bunker, oxygen supply and air blower;Also Including air-heating unit, at least two groups of elevating mechanisms 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 grate includes setting successively from center of circle direction toward circumferencial direction The center pontic for the center of circle structure put and at least one peripheral pontic of loop configuration;The center pontic and the peripheral pontic are total to The center of circle is set, and is surrounded around the center pontic by the center pontic, and the peripheral and described peripheral pontic of center pontic In enclose between be provided with elastic filter;The bottom of the center pontic and the peripheral pontic respectively with two groups of elevating mechanisms Line shaft drive connection, and can by two groups of elevating mechanisms drive and separately or concurrently pump, realize pair The control of the distance between fuel combustion amount and combustion flame and air-heating unit;

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 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, two groups of elevating mechanisms and enter oxygen valve Door electrical connection;The control module controls two groups of lifts according to the detection signal of outer triggering signal and temperature sensor Structure 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;By being improved to the structure of grate, leaving air temp is detected with reference to the temperature sensor being arranged at hot-blast outlet, together When outer triggering signal received by trigger module, the detection signal inputted using outer triggering signal and temperature sensor is to two Group elevating mechanism is controlled with the working condition for entering oxygen valve, namely the burning total amount and height of fuel are controlled by elevating mechanism Degree so that local burnup's (only one group of elevating mechanism of control drives fuel thereon to rise to combustion bin) or (control of whole fuel All elevating mechanisms drive all fuel to rise to combustion bin) burned flame closer or far from air-heating unit, realize plus A kind of regulation and control of hot temperature, and realize that the oxygen supply to burning controls by controlling into oxygen valve, in another aspect Realize the control to the intensity of a fire;So as to realize the regulation and control to leaving air temp, it can preferably meet use demand, and utilization can be realized Less biomass fuel also can cause air to be heated to equal temperature.

Further, it is described enter oxygen valve be air flow control valve;The control module is to two groups of elevating mechanisms and enters The control of the working condition of 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 all elevating mechanisms and enter the current working condition of oxygen valve;If temperature gap is negative value, the air blast is controlled Machine it is out of service and it is described enter oxygen valve close;Otherwise, step 3 is performed;

Step 3: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 two groups of elevating mechanisms 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, according to regulating and controlling temperature is actually removed, can be advantageous to preferably improve the utilization rate and more of fuel combustion It is adapted in use to demand.

Further, biomass fuel blast heater of the present invention also includes the waste residue accumulator tank for being provided with recovery entrance;And institute State lower portion of furnace body and offer fire door;The waste residue accumulator tank is arranged in the body of heater, and below the grate, it is reclaimed Entrance face is towards the grate, and it can be extend out to outside body of heater from the fire door.It is convenient to biomass fuel by limiting herein The recovery of caused waste residue after material burning so that the cleaning of body of heater more aspect, reduce cleaning burden.

Further, biomass fuel blast heater of the present invention also includes 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, and two assembly pulley is respectively arranged at the outer of the waste residue accumulator tank Wall opposite sides;, and can be along twice between the waste residue accumulator tank is arranged at the two recovery slide rail by two assembly pulley Receive slide rail and extend out to the reciprocating motion that fire door is outer and enters in body of heater.By limiting herein, waste residue is further facilitated and has returned That receives groove is removed and placed into operation, so as to reduce work burden.

Further, biomass fuel blast heater of the present invention also includes heated barrier;The heated barrier is set up in described Between exhaust opening and the air-heating unit, and it offers multiple exhaust smoke holes, and it is unidirectional that a smoke evacuation is provided with each exhaust smoke hole Valve;All smoke evacuation one-way cocks electrically connect with the control module, by control module according to default smoke evacuation time interval control Make its opening and closing;And the inner bag is divided into smoke evacuation section above heated barrier and positioned at heating by heated barrier Insulation section below dividing plate;When all smoke evacuation one-way cocks of control module control are closed, the heated barrier cut-off row Between cigarette district and insulation section, 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 connects with soak zones, and insulation section is open section.By limiting herein, be advantageous to produce using burning Heating shell of the high-temperature flue gas further to air-heating unit heat, biomass fuel is fired so as to further be lifted The utilization of heat energy caused by burning, further reduces fuel consumption.

Further, biomass fuel blast heater of the present invention also includes air exhauster;The air exhauster is arranged at the smoke evacuation At mouthful.By limiting herein, be advantageous to accelerate the discharge of flue gas caused by burning, avoid the excessive overrich of flue gas and influence to burn.

Further, biomass fuel blast heater of the present invention also includes a gas cleaning unit;The gas cleaning unit It is arranged between the air exhauster and the air-heating unit.By limiting herein, be advantageous to produce biomass fuel combustion After raw flue gas 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 of biomass fuel blast heater of the present invention;

Fig. 2 is the overlooking the structure diagram of the grate of the present invention;

Fig. 3 is the front view structure perspective diagram of the grate of the present invention;

Fig. 4 is that the center pontic of the grate of the present invention rises and peripheral bridge body is located at the grate structural representation of elemental height Figure;

Fig. 5 is that the grate perspective structure of the center pontic and peripheral pontic of the grate of present invention when rising to identical height shows It is intended to;

Fig. 6 is the center pontic of the grate of the present invention and grate structural representation when peripheral pontic rises to different height Figure;

Fig. 7 is contained with structural representation during biomass fuel for the bio-fuel blast heater in Fig. 1;

Fig. 8 drives biomass fuel for the control centre's pontic of elevating mechanism 81 of the biomass fuel blast heater in Fig. 1 Schematic diagram after material rising;

Fig. 9 is the structural representation after the biomass fuel blast heater in Fig. 1 further improves;

Figure 10 is the structural representation after the biomass fuel blast heater in Fig. 9 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, it includes body of heater 1, inner bag 2, combustion bin 3rd, Bunker 4, oxygen supply 5, air blower 6, at least air-heating unit 7, two groups of elevating mechanisms and heat control unit.In this reality Apply in example, provided with two groups of elevating mechanisms (81 and 82), every group of elevating mechanism may include one or more elevating mechanisms.

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.Please refer to Fig. 2~7, the grate 41 is included from circle The center pontic 411 for the center of circle structure that heart direction is set gradually toward circumferencial direction and at least the one of loop configuration peripheral pontic 412. In the present embodiment, the quantity of peripheral pontic 412 is 1.The center pontic 411 and the 412 concyclic heart of the peripheral pontic are set, And surrounded around the center pontic 411 by the center pontic 411, and the peripheral and described peripheral pontic of center pontic 411 Elastic filter is provided between being enclosed in 412, thus when two pontics are in different height, can also be kept away by elastic filter Exempt from dropping for fuel in uphill process.The bottom of the center pontic 411 and the peripheral pontic 412 respectively with two groups of liters The line shaft drive connection of descending mechanism (81 and 82), and can by two groups of elevating mechanisms (81 and 82) drive and separately or concurrently Pump, realize the control to the distance between fuel combustion amount and combustion flame and air-heating unit.It is central The elevating mechanism 81 of the bottom of heart pontic 411 and the elevating mechanism 82 of the bottom of peripheral pontic 412 are in original state, center pontic 411 and peripheral pontic 412 be located at minimum altitude, as shown in Figure 3;When the elevating mechanism 81 of the bottom of center pontic 411 drives center Pontic 411 rises, and when the elevating mechanism 82 of the bottom of peripheral pontic 412 does not drive the peripheral pontic 412 to rise, only center pontic The fuel of 411 top surfaces can rise and close air-heating unit 7, as shown in Figure 4;When simultaneously two groups of elevating mechanisms 81 and 82 drive When center pontic 411 and peripheral pontic 412 rise to extreme higher position, the structure of grate is as shown in Figure 5;When two groups of elevating mechanisms 81 When rising to different height with 82 driving center pontics 411 and peripheral pontic 412, the structure of grate is as shown in Figure 6.

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.

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 described 9, two groups of elevating mechanisms 81 and 82 of temperature sensor and enter Oxygen valve electrically connects;The control module is according to described two groups of the detection signal of outer triggering signal and temperature sensor 9 control Elevating mechanism 81 and 82 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 Two groups of elevating mechanisms 81 and 82 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 required 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 all elevating mechanisms 81 and 82 and enter the current working condition of oxygen valve;If temperature gap is negative value, institute is controlled State air blower 6 it is out of service and it is described enter oxygen valve close;Otherwise, step 3 is performed;

Step 3: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 two groups of elevating mechanisms 81 and 82 and enter oxygen valve respectively.Wherein, control data table is according to big What the experimental data of amount obtained, similar to such, institute after mass data statistics and repeatedly adjustment that builds up process of grader , its technological means specifically obtained is identical with prior art means, herein without repeating.

In above-mentioned steps, the process for controlling two groups of elevating mechanisms 81 and 82 to be acted control module below is shown Meaning explanation, when temperature gap is negative value, represent that current hot blast temperature is higher than required hot blast temperature, then control module control is all Elevating mechanism 81 and 82 drops to extreme lower position, namely opening position as shown in Figure 7;And when temperature gap be on the occasion of when, judge Whether temperature gap is more than first threshold, is, needs to control two groups of elevating mechanisms 81 and 82 by calling control data table to determine Carry out stretching out motion and driving the fuel on center pontic 411 and peripheral pontic 412 to rise to certain height simultaneously, to cause Air-heating unit 7 is more nearly thermal source and increase fuel combustion total amount, control module two groups of elevating mechanisms 81 and 82 of control Line shaft is run to certain height according to the current stroke that stretches out, and drives fuel to rise;If temperature gap be on the occasion of and Judge that temperature gap is less than first threshold, then only control elevating mechanism 81 to drive center pontic 411 to rise to certain height, such as Opening position shown in Fig. 8.Wherein, that " currently stretches out stroke " is obtained by inquiring about what control data table obtained.

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. 9, biomass fuel blast heater of the present invention also includes heated barrier 10;The heated barrier 10 are set up between the exhaust opening 21 and the air-heating unit 7, and it offers multiple exhaust smoke holes 101, each smoke evacuation A smoke evacuation one-way cock is provided with hole;All smoke evacuation one-way cocks electrically connect with the control module, by control module according to pre- If smoke evacuation time interval controls its opening and closing;And the inner bag 2 is divided into heated barrier 10 by heated barrier 10 The smoke evacuation section and the insulation section below heated barrier 10 of side;All smoke evacuation one-way cocks of control module control close When closing, the cut-off of the heated barrier 10 smoke evacuation section and insulation section, insulation section is closed section;The control module control When at least one smoke evacuation one-way cock is opened, the smoke evacuation section connects with soak zones, and insulation section is open section.Wherein, Default smoke evacuation time interval can obtain from actual experiment, that is, being based on biomass fuel blast heater of the present invention, test Draw in combustion, burning will not also be impacted in the burning regular hour without discharging fume, and be burned to one Time can cause combustion efficiency bad without smoke evacuation, then the smoke evacuation time interval is without discharging fume without right after burning The burn time duration threshold value that burning impacts, can also take other values less than the threshold value, therefore in the present embodiment not to the row Cigarette time interval occurrence limits.

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. 9, biomass fuel blast heater of the present invention also includes Waste residue accumulator tank provided with recovery entrance;And the bottom of body of heater 1 offers fire door 15, and one is provided with the fire door 15 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 direction 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, biomass fuel blast heater of the present invention also include two recovery slide rails and two assembly pulleys;The two recovery slide rail is relative The inwall opposite sides of the body of heater 1 is arranged at, the outer wall that two assembly pulley is respectively arranged at the waste residue accumulator tank is relative Both sides;The waste residue accumulator tank by two assembly pulley be arranged at it is described two recovery slide rail between, and can along two recovery slide rails It 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. 9, biomass fuel blast heater of the present invention also includes air exhauster 20;The air exhauster 20 is arranged at 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, biomass fuel blast heater of the present invention also includes a gas cleaning unit 30; The gas cleaning unit 30 is arranged between the air exhauster 20 and the air-heating unit 7.And the life in based on Fig. 9 Biomass fuel blast heater, the gas cleaning unit 30 are arranged between the air exhauster 20 and heated barrier 10, are such as schemed Shown in 10.

In the present embodiment, each elevating mechanism is electric pushrod or electric cylinder or other can carry out reciprocating linear fortune Dynamic drive mechanism.Also, the quantity of elevating mechanism can be set according to actual use demand, can use multiple elevating mechanisms Synchronous working, bears the weight of fuel and grate 41, realizes sharing for heavy burden jointly, improves the stability of motion and extends lifting The service life of 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, biomass fuel blast heater of the present invention is made by being improved to air-heating unit Air can pass through multiple heating spaces and progressively be heated, be capable of the heat of preferably organism-absorbing matter fuel combustion, raising The effective rate of utilization of the heat energy of biomass fuel combustion;By being improved to the structure of grate, with reference to being arranged at hot-blast outlet The temperature sensor detection leaving air temp at place, while outer triggering signal is received by trigger module, utilize outer triggering signal Two groups of elevating mechanisms are controlled with the working condition for entering oxygen valve with the detection signal of temperature sensor input, namely passed through Elevating mechanism controls the burning total amount and height of fuel so that (only one group of elevating mechanism of control drives combustion thereon for local burnup Material rises to combustion bin) or whole fuel (controlling all elevating mechanisms to drive all fuel to rise to combustion bin) burned flame 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, Neng Gougeng Meet use demand well, and can realize also can be so that air 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 (10)

1. a kind of biomass fuel blast heater, including body of heater, inner bag, combustion bin, Bunker, oxygen supply and air blower, it is special Sign is:Also include air-heating unit, at least two groups of elevating mechanisms 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 grate includes what is set gradually from center of circle direction toward circumferencial direction The center pontic of center of circle structure and at least one peripheral pontic of loop configuration;The center pontic and the concyclic heart of peripheral pontic Set, and surrounded around the center pontic by the center pontic, and the peripheral and described peripheral pontic of center pontic is interior Elastic filter is provided between enclosing;The bottom of the center pontic and the peripheral pontic is dynamic with two groups of elevating mechanisms respectively Power axle drive connection, and can be driven by two groups of elevating mechanisms and separately or concurrently pumped, realize to fuel The control of the distance between quantity combusted and combustion flame and air-heating unit;
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 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 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, two groups of elevating mechanisms and enter oxygen valve Electrical connection;The control module controls two groups of elevating mechanisms according to the detection signal of outer triggering signal and temperature sensor With the working condition for entering oxygen valve.
2. biomass fuel blast heater according to claim 1, it is characterised in that:It is described enter oxygen valve be air mass flow Control valve;Control of the control module to two groups of elevating mechanisms 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, protect Hold all elevating mechanisms and enter the current working condition of oxygen valve;If temperature gap is negative value, the air blower is controlled to stop Only operation and it is described enter oxygen valve close;Otherwise, step 3 is performed;
Step 3: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 two groups of elevating mechanisms and enter oxygen valve respectively.
3. biomass fuel blast heater according to claim 1 or 2, it is characterised in that:Also include being provided with recovery entrance Waste residue accumulator tank;And the lower portion of furnace body offers fire door;The waste residue accumulator tank is arranged in the body of heater, and position Below the grate, it reclaims entrance face towards the grate, and it can be extend out to outside body of heater from the fire door.
4. biomass fuel blast heater according to claim 3, it is characterised in that:Also include two recovery slide rails and two to slide Wheel group;The two recovery slide rail is relatively arranged on the inwall opposite sides of the body of heater, and two assembly pulley is respectively arranged at institute State the outer wall opposite sides of waste residue accumulator tank;The waste residue accumulator tank is arranged at the two recovery slide rail by two assembly pulley Between, and the reciprocating motion outside fire door and entered in body of heater can be extend out to along two recovery slide rails.
5. biomass fuel blast heater according to claim 1 or 2, it is characterised in that:Also include heated barrier;It is described Heated barrier is set up between the exhaust opening and the air-heating unit, and it offers multiple exhaust smoke holes, each smoke evacuation A smoke evacuation one-way cock is provided with hole;All smoke evacuation one-way cocks electrically connect with the control module, by control module according to pre- If smoke evacuation time interval controls its opening and closing;And the inner bag is divided into above heated barrier by heated barrier Smoke evacuation section 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. biomass fuel blast heater according to claim 1 or 2, it is characterised in that:Also include air exhauster;It is described to take out Blower fan is arranged at the exhaust opening.
7. biomass fuel blast heater according to claim 6, it is characterised in that:Also include a gas cleaning unit; The gas cleaning unit is arranged between the air exhauster and the air-heating unit.
8. biomass fuel blast heater according to claim 1, it is characterised in that:The air-out of the air-heating unit The wall of air-guiding aisle between mouth and body of heater hot-blast outlet includes interior heat-insulation layer, vacuum layer and the insulation set gradually outward Layer.
9. biomass fuel blast heater according to claim 1, it is characterised in that:The heating of the air-heating unit Housing is provided with two air inlets;Two air inlet is relatively arranged on positioned at the one of the top opposite sides for heating space, and point Do not connected by an air-guiding aisle with the heating chamber;The air outlet is arranged at heats the one of space positioned at the one of bottommost Side.
10. biomass fuel blast heater according to claim 9, it is characterised in that:The cold wind import and the heat Wind exports the bottom opposite sides for being relatively arranged on the body of heater.
CN201710913878.8A 2017-09-30 2017-09-30 Biomass fuel hot air equipment CN107676972B (en)

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CN107676972B CN107676972B (en) 2020-09-22

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907354A (en) * 2010-08-30 2010-12-08 蒋世仁 Hot-blast stove of biomass energy source
CN202101401U (en) * 2011-05-16 2012-01-04 王合新 Novel hot air furnace
CN102486314A (en) * 2010-12-06 2012-06-06 许国贵 Novel biomass gasification furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907354A (en) * 2010-08-30 2010-12-08 蒋世仁 Hot-blast stove of biomass energy source
CN102486314A (en) * 2010-12-06 2012-06-06 许国贵 Novel biomass gasification furnace
CN202101401U (en) * 2011-05-16 2012-01-04 王合新 Novel hot air furnace

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