A kind of detachable accumulation of heat combustion chamber and comprise the body of heater of this combustion chamber
Technical field
The invention belongs to little grain biomass fuel combustion and equip field with heat supply process, be specifically related to a kind of little granule raw
Biomass fuel, with the burning of double upper rotational gas flows and from the method and device separated, relates to and medium heat conduction technical equipment, especially simultaneously
It is a kind of detachable accumulation of heat combustion chamber and the body of heater comprising this combustion chamber.
Background technology
As prior art, the combustion apparatus kind of the thick dusty fuels such as burning rough coal powder, rice husk is more, as single flow,
Eddy current type, reverse-flow type etc..These coal dust furnaces are when particle diameter is less than the coal dust of 50 μm, and efficiency of combustion is high, phosphorus content in ash
Less than 1%.When the particle diameter that burns is more than the rough coal powder of 50 μm, due to the finite volume of burner hearth, fuel burning time in burner hearth
Shorter, coal dust likely burns endless, and is likely deposited to the bottom of burner hearth from the combustion gas of burning, reduces efficiency of combustion.
And particle diameter need to be equipped with special disintegrating apparatus, such as Raymond mill less than the coal dust of 50 μm.It addition, the particle diameter of coal charge is the thinnest, preserve difficulty
Degree and expense are the biggest.
The combustion furnace kind of combusting rice hull is the most more, such as swinging, vibration type, reciprocating, fixed-bed type, fire grate and suspension
Burning convolution etc..The biomass fuel of rice husk size similar for particle diameter, has a fire grate combustion system as used, then due to
Fire grate is in the complex environment of high temperature, many ashes, makes combustion furnace structure complicated and maintaining difficulty.Burn according to without fire grate
Mode, then bigger because of the particle diameter of the biomass fuels such as rice husk, it is possible to settle down from combustion gas, make efficiency of combustion reduce.
The heat exchange mode of combustion furnace, generally has combustion gas to walk pipe and neutralizes the outer two ways of pipe.Combustion gas is walked in pipe, is referred to as " fire
Pipe ".Owing to combustion gas is walked in pipe, then the maintenance after inner-walls of duct damage is highly difficult, and in also causing pipe just like dew condensation phenomenon, laying dust amasss
Ash, serious situation will result in blocking.Walking heat transferring medium in pipe, combustion gas is walked outside pipe, owing to heat exchanger tube is in the ring of the many ashes of high temperature
In border, heat exchanging tubing matter, processing and matching requirements are the highest.
It addition, fuel suspension combustion mode in burner hearth is the most more at present, during fuel combustion to be made, it is in suspended state,
The air-flow rate of climb floating velocity more than fuel must be made.And when the particle diameter of fuel and when differing greatly of quality, allow all
Fuel all in suspended state, and extend burning time of fuel as far as possible, truly have sizable difficulty.Because particle diameter is little
The floating velocity of fuel is little, is easily accelerated, the combustion intermittence in burner hearth.And the floating velocity of the bigger fuel of particle diameter is relatively big,
It is difficult to suspend.If the fuel making greater particle size is completely in suspended state, then make air quantity be multiplied, concentration will be caused too low,
Making furnace temperature decline, serious situation will make continuous burning difficulty.
Chinese Patent Application No. is the " biomass whirlwind pyrolysis-suspension combustion combined gasification equipment of CN201410392202
And gasification process ", disclose a kind of biomass whirlwind pyrolysis-suspension combustion combined gasification equipment and gasification process thereof.This
Bright device includes, whirlwind pyrolysis chamber (1) interior concentric suspention central row trachea (2), whirlwind pyrolysis chamber (1), suspension combustion room
(3), switching fire grate (4), vane (8) and ash bucket (5) be sequentially connected with, switch set-point fire hole between fire grate (4) and vane (8)
(9);One group of biomass fuel charge pipe (6) of whirlwind pyrolysis chamber (1) top tangential direction grafting;Suspension combustion room (3) bottom is inserted
Connect igniter fuel charge pipe (7).Its gasification process includes: biomass fuel by tangentially spray into whirlwind pyrolysis chamber (1) rotate afterwards to
There is pyrolytic reaction in lower motion;Biomass coke granule in pyrolytic reaction product enters suspension combustion room (3), with vane (8)
The main air flow generation combustion reaction entered, the biomass that the carbon dioxide of generation is up with descending by suspension combustion room (3)
Coke granule generation reduction reaction.The invention provides a kind of biomass gasification method, and be not suitable for heat conduction heat-supplying mode.
It is many that Chinese Patent Application No. is that " many back-stroke heat-exchange types biomass boiler " of CN201410648974 discloses one
Back-stroke heat-exchange type biomass boiler, this device includes boiler body and forced draft induced draft system, it is characterised in that described boiler body includes
Charger, twin furnace mechanism, be provided with many backhauls gather water pipe internal furnace, smoke exhaust pipe, be arranged on outside twin furnace mechanism, flue
Water tank, it is arranged on the heat-insulation layer outside water tank;The entrance of described twin furnace mechanism is connected with charger, aerator, twin furnace machine
The outlet of structure is connected with the entrance of flue;The outlet of described flue is connected with smoke exhaust pipe, air-introduced machine.The invention provides one many
Backhaul heat exchange or biomass boiler, the densely covered water pipe of utilization is as burner hearth flue, and is connected with smoke exhaust pipe by flue.
Chinese Patent Application No. is that " a kind of straw fuel suspension combustion furnace " of CN201110186858 discloses and belong to agriculture
A kind of straw fuel suspension combustion furnace of product drying field.Pass through the crop material fuel preheating at suspension-combustion furnace of pulverizing
District preheats and starts burning, burns subsequently into high temperature combustion zone big fire, and under blasting action, stalk fuel is blown to shower furnace
Thorax carry out suspension combustion in the air, eventually become pyrotechnics enter cyclone dust extractor, under the thrust and air inducing pulling force effect of air blast,
Pyrotechnics is high speed rotating dedusting in cyclone dust extractor, and the pyrotechnics through udst separation becomes pure flue gas and enters matching air box, is joining
In bellows, pure flue gas becomes to reach the pure flue gas of mixing of design temperature with cold air mixing preparation, is directly used in drying agricultural production
Product.The invention provides a kind of straw preheating, spray wind suspension combustion method, but uneven the asking of furnace temperature after there is hearth combustion
Topic.Chinese Patent Application No. is that " many back-stroke heat-exchange types biomass boiler " of CN201410648974 discloses a kind of many backhauls and change
Hot type biomass boiler, this device includes boiler body and forced draft induced draft system, it is characterised in that described boiler body includes charging
Machine, twin furnace mechanism, be provided with many backhauls gather water pipe internal furnace, smoke exhaust pipe, be arranged on the water outside twin furnace mechanism, flue
Case, it is arranged on the heat-insulation layer outside water tank;The entrance of described twin furnace mechanism is connected with charger, aerator, twin furnace mechanism
Outlet be connected with the entrance of flue;The outlet of described flue is connected with smoke exhaust pipe, air-introduced machine.Present invention solves the technical problem that
It is to provide a kind of thermal efficiency high and safe and reliable, easy for installation, many back-stroke heat-exchange types biomass boiler that floor space is little.This
Bright a kind of many backhauls heat exchange or the biomass boiler of providing, utilize the water pipe that gathers as burner hearth flue, and by flue and smoke exhaust pipe
Connect
Chinese Patent Application No. be CN201410652609 " circulation water of blast furnace heat-exchanger rig and with it to circulating water afterheat
The method of comprehensive utilization " belong to a kind of circulation water of blast furnace heat-exchanger rig, including heat exchange tube body and 1~3 separate circulation
Water cooler;The water inlet reducer pipe of described water recirculator, water out reducer pipe are separately mounted to about heat exchange tube body manage
Outside wall, fin pipe group is arranged on heat exchange tube body inner chamber, and its water inlet passes right tube wall and communicates with water inlet reducer pipe, outlet
Passing left tube wall to communicate with water out reducer pipe, the cavity between fin Guan Zuyu heat exchange tube body tube wall constitutes heat exchange air and leads to
Road;Air intake reducer pipe and air outlet slit reducer pipe be separately mounted to heat exchange tube body two ends and with the air of heat exchange tube body
Passage communicates;With circulation water of blast furnace heat-exchanger rig, the method that circulating water afterheat comprehensively utilizes is included the hot blast accessing blast furnace
System and circulation, make Cryogenic air and high-temperature cooling water carry out heat exchange in heat-exchanger rig;Above-mentioned residual heat integrative profit
Energy consumption and sewage discharge can be reduced by method, reduce equipment investment and consumption, reduce production cost, steady production.This invention carries
Supply the cooling of a kind of blast furnace and residual-heat utilization technology, and be not suitable for general heat conducting furnace specifically for blast furnace waste heat recovery.
Chinese Patent Application No. is " a kind of rice husk suspension combustion method " of CN201310320339, discloses a kind of rice
Shell suspension combustion method, including following methods step: first rice husk dry in the sun done, has being pulverized by caking of caking, and accumulation is got up
Use as fuel;The combustor that rice husk is put into boiler burns, and at the aerator that is formed around of combustor, aerator leads to
Piping is linked in combustor;During combusting rice hull, starting aerator, air blasts combustor by pipeline, will combustion
Rice husk in burning blows out suspension;The rice husk of suspension, in a combustion chamber owing to touching fresh air, just can fully burn,
Rice hull ash after burning enters into chimney and carries out settling collection process;Aerator is closed after having burnt.The present invention has method
Simply, the advantage such as with low cost, it is possible to rice husk is fully burnt, resource utilization is high, and combustion process is safe and reliable.This invention
Utilize aerator to be blasted from burner hearth surrounding by wind, make rice husk suspension combustion rather than burn when swirling eddy rises.
Summary of the invention
Present invention aim to overcome that above-mentioned weak point of the prior art provides a kind of cyclone burning water heater.
The principle of the invention is, use negative pressure suck mode by little grain biomass fuel (as rice husk, pulverize after straw etc.) with
The gas-solid mixture of air is sucked by bottom of furnace body tangential admission mouth and is lighted, owing to being provided with two tangential admission mouths, and burning
Material form double upper rotational gas flow;Material burns with double upper rotational gas flows and rises, when material burns into grey matter completely, and quality becomes
After light automatically with imperfect combustion feed separation by body of heater top tangential discharging opening sucking-off body of heater.Meanwhile, imperfect combustion
Material slowly fall to burning away with rotational gas flow lower in the middle of body of heater, form suspension sustained combustion layer in body of heater stage casing with persistently point
Combustion subsequent material, thus reach continuous feed, continuous burning, continuous ash discharge, the benefit of lasting heat supply.
The present invention realizes in the following way:
As first aspect, the present invention proposes a kind of method of upper cyclone firing, and it comprises the following steps:
Step s001: use mode that negative pressure sucks by the gas-solid mixture of little grain biomass fuel and air by body of heater
Bottom tangential admission mouth sucks;
Step s002: light gas-solid mixture, is formed in body of heater and revolves combustion-gas flow, and material burns with upper rotational gas flow
And rise;
Step s003: feed separation automatic and imperfect combustion after material burns into grey matter completely;
Step s004: by grey matter by body of heater top discharge mouth sucking-off body of heater;
Preferably, imperfect combustion material slowly falls to burning away, in body of heater stage casing with rotational gas flow lower in the middle of body of heater
Form suspension sustained combustion layer with sustained ignition subsequent material.
Preferably, combustible gas solid mixture is sucked in combustion furnace by negative pressure, and combustion-gas flow moves from bottom to top, fires completely
Grey matter after burning separates discharge with combustible gas stream automatically.
Further, the invention allows for a kind of device using cyclone-burning method, comprising: base of furnace body, body of heater,
Combustion chamber lowering or hoisting gear, body of heater is seated on base of furnace body, and is fastened by bolts;Combustion chamber lowering or hoisting gear is used for lifting combustion chamber;Stove
Body is provided with multi-functional charging aperture.
Preferably, described multi-functional charging aperture at least two, first multi-functional charging aperture is used for sucking the life of little granule
Biomass fuel and the gas-solid mixture of air, second multi-functional charging aperture, for mount point firearm, is used for sucking thermal-flame,
Suck when lighter quits work and supplement air, body of heater inner chamber is formed double upper rotational gas flow.
Preferably, described body of heater includes external furnace body, inner furnace body, body of heater access hole, discharging opening and combustion chamber;Described multi-functional enter
Material mouth is located at bottom of furnace body, and be uniformly distributed along the circumference setting tangent with body of heater circumference.
Preferably, described external furnace body is concentric with inner furnace body, and bottom is body of heater bottom, and top is body of heater top cover, forms one
Heat exchanging interlayer;Described body of heater access hole is located at body of heater top cap central, for overhaul of the equipments;Described discharging opening is located at body of heater top,
Tangent with body of heater circumference;Described combustion chamber is located at body of heater bottom center, concentric with inner furnace body, forms annular diversion space.
As second aspect, the present invention proposes a kind of cyclone burning water heater, comprising: base of furnace body, body of heater, stove
Core lowering or hoisting gear, body of heater is seated on base of furnace body, and is fastened by bolts;Combustion chamber lowering or hoisting gear is used for lifting combustion chamber.
Preferably, described body of heater includes: multi-functional charging aperture, external furnace body, inner furnace body, body of heater access hole, discharging opening and stove
Core;Described multi-functional charging aperture is located at bottom of furnace body, and be uniformly distributed along the circumference setting tangent with body of heater circumference.
Preferably, described multi-functional charging aperture at least two, first multi-functional charging aperture is used for sucking the life of little granule
Biomass fuel and the gas-solid mixture of air, second multi-functional charging aperture, for mount point firearm, is used for sucking thermal-flame,
Suck when lighter quits work and supplement air, body of heater inner chamber is formed double upper rotational gas flow.
Preferably, described multi-functional charging aperture is more than three, forms rotational gas flow in multiply in body of heater inner chamber.
Preferably, described external furnace body is concentric with inner furnace body, and bottom is body of heater bottom, and top is body of heater top cover, forms one
Heat exchanging interlayer;Described body of heater access hole is located at body of heater top cap central, for overhaul of the equipments;Described discharging opening is located at body of heater top,
Tangent with body of heater circumference;Described combustion chamber is located at body of heater bottom center, concentric with inner furnace body, forms annular diversion space.
Preferably, described body of heater bottom is provided with heat exchanging interlayer water inlet, and its position is in heat exchanging interlayer at body of heater bottom
Projected area within;Described body of heater top cover is provided with heat exchanging interlayer outlet and relief valve, and its position is in heat exchanging interlayer and exists
Within the projected area of body of heater top cover.
Preferably, in described heat exchanging interlayer, heat transferring medium flow path direction is from bottom to top, and heat exchanging liquid is water or conduction oil.
As the third aspect, the invention allows for a kind of detachable accumulation of heat combustion chamber, it is characterised in that described combustion chamber bag
Including: combustion chamber shell, installation underframe and accumulation of heat implant, described combustion chamber shell is that cylindrical cavity is fixed on installation underframe, institute
State and be provided with installing hole on installation underframe.
Preferably, described combustion chamber uses big test metal shell to constitute combustion chamber shell, and omits accumulation of heat implant.
Preferably, the height of described combustion chamber is between 1st/1st to two/8th of body of heater height.
As fourth aspect, the present invention proposes a kind of body of heater, and it detachable accumulation of heat combustion chamber described before including is described
Body of heater includes body of heater bottom, body of heater top cover, external furnace body, inner furnace body, it is characterised in that described combustion chamber is anchored on institute by installing hole
State on body of heater bottom, and concentric with described inner furnace body, and the most described combustion chamber realizes lifting by combustion chamber lowering or hoisting gear.
Preferably, described combustion chamber lowering or hoisting gear includes base, adjusting rod, lifting screw and lifting jacking block, rotates adjusting rod
Can realize the raising and lowering of lifting screw, thus move up and down lifting jacking block, lifting jacking block is stuck on combustion chamber, and come loose fastening stove
After the bolt of core, combustion chamber is with lowering or hoisting gear rise and fall.
Preferably, described combustion chamber lowering or hoisting gear can be installed motor and drive lifting screw rotation.
Mesh of the present invention provides a kind of cyclone burning water heater.The principle of the invention is, uses the mode that negative pressure sucks
By the gas-solid mixture of little grain biomass fuel (straw etc. as after rice husk, pulverizing) and air by bottom of furnace body tangential admission
Mouth sucks and lights, and owing to being provided with two tangential admission mouths, the material of burning forms double upper rotational gas flow;Material is with double upper rotations
Gas stream burning also rises, when material burns into grey matter completely, quality lighten after automatically with imperfect combustion feed separation and by
Body of heater top tangential discharging opening sucking-off body of heater.Meanwhile, imperfect combustion material slowly falls to continuing with rotational gas flow lower in the middle of body of heater
Afterflame burns, and at body of heater stage casing formation suspension sustained combustion layer with sustained ignition subsequent material, thus reaches continuous feed, fires continuously
Burning, continuous ash discharge, the benefit of lasting heat supply.
Accompanying drawing explanation
Fig. 1 fundamental diagram of the present invention;
Fig. 2 body of heater of the present invention portion dress cut-away diagram;
Fig. 3 furnace binding of the present invention schematic diagram;
Fig. 4 furnace binding of the present invention top view;
Fig. 5 stove core structure of the present invention schematic diagram;
Fig. 6 lowering or hoisting gear of the present invention schematic diagram.
Detailed description of the invention
In conjunction with accompanying drawing in detail, the specific embodiment of the invention is described in detail:
As it is shown in figure 1, a kind of cyclone burning water heater, its principle is, uses the mode that negative pressure sucks by little granule
Biomass fuel (straw etc. as after rice husk, pulverizing) is sucked also by bottom of furnace body tangential admission mouth with the gas-solid mixture of air
Lighting, owing to being provided with two tangential admission mouths, the material of burning forms double upper rotational gas flow;Material is with double upper rotational gas flow burnings
And rise, when material burns into grey matter completely, quality lighten after automatically with imperfect combustion feed separation by body of heater top
Tangential discharging opening sucking-off body of heater.Meanwhile, imperfect combustion material slowly falls to burning away with rotational gas flow lower in the middle of body of heater,
Body of heater stage casing formation suspension sustained combustion layer is with sustained ignition subsequent material, thus reaches continuous feed, continuous burning, arranges continuously
Ash, the benefit of lasting heat supply.
Combustible gas solid mixture sucks body of heater inner chamber 27 via multi-functional charging aperture 21, through annular diversion space 237
Forming double upper rotational gas flow, form air forming light district 1., material is ignited in this region and constantly mixes new material rotating
Rise to mixed combustion district 2., be also stable combustion zone simultaneously, along with air-flow continues up, in the position close to discharging opening 25 be
Ash separation district 3., burn completely grey matter at this region disconnecting along with thermal current is sucked out body of heater 2, thus realize entering continuously
Material, continuous burning, continuous ash discharge, continue in heat supply, and stove not dust stratification.
As in figure 2 it is shown, a kind of cyclone burning water heater, its device includes, base of furnace body 1, body of heater 2, combustion chamber lifting dress
Putting 3, body of heater 2 is seated on base of furnace body 1, and is fastened by bolts;Combustion chamber lowering or hoisting gear 3 is used for lifting combustion chamber 26.
As shown in Figure 3,4, body of heater 2, its device includes: multi-functional charging aperture 21, external furnace body 22, inner furnace body 23, body of heater are examined
Repair mouth 24, discharging opening 25, combustion chamber 26;Described multi-functional charging aperture 21 is located at bottom body of heater 2, and body of heater 2 circumference is tangent and circumference is equal
Cloth arranges two, and a multi-functional charging aperture 21 is used for the gas-solid mixture sucking little grain biomass fuel with air, another
Individual multi-functional charging aperture 21 is used for mount point firearm (such as diesel fuel burner, neat gas burner, pulverized coal injection burner etc.)
In sucking thermal-flame, suck when lighter quits work and supplement air;So can be formed in body of heater inner chamber 27 and revolve on double
Air-flow;It addition, this combustion method also can arrange the multi-functional charging aperture of two or more 21 bottom body of heater 2, formed and in multiply, revolve gas
The form of stream is in order to meet more powerful burner;Described external furnace body 22 is concentric with inner furnace body 23, and bottom is body of heater bottom
231, top is body of heater top cover 232, forms a Sealed sandwich, i.e. heat exchanging interlayer 236;Described body of heater access hole 24 is located at body of heater
Top cover 232 center, for overhaul of the equipments;Described discharging opening 25 is located at body of heater 2 top, tangent with body of heater 2 circumference;Described combustion chamber 26
It is located at body of heater bottom 231 center, concentric with inner furnace body 23, form annular diversion space 237.
The height of described combustion chamber 26 takes between 1st/1st to two/8th of body of heater 2 height.
Described combustion chamber 26 is detachable, is anchored on body of heater bottom 231 by installing hole, concentric with inner furnace body 23,
So can realize the convertibility of combustion chamber 26, lifting can be realized by combustion chamber lowering or hoisting gear 3 simultaneously, thus reach easy cleaning
The purpose of impurity in stove.
Described body of heater bottom 231 is provided with heat exchanging interlayer water inlet 235, and its position is in heat exchanging interlayer 236 at the bottom of body of heater
Within the projected area of lid 231;Described body of heater top cover 232 is provided with heat exchanging interlayer outlet 233 and relief valve 234, its position
It is in heat exchanging interlayer 236 within the projected area of body of heater top cover 232.
The water (flow) direction heat energy that material burning is discharged in taking away body of heater 2 from bottom to top in described heat exchanging interlayer 236,
During this, in heat exchanging interlayer 236, the heat exchanging liquid of flowing can use the medium such as water or conduction oil, wherein does heat exchange with water and is situated between
Matter is the most commonly used, uses water level heat transferring medium can ensure that whole equipment is under low temperature environment running simultaneously.Be conducive to equipment peace
Complete and service life.
As it is shown in figure 5, combustion chamber 26, its device includes: combustion chamber shell 261, installation underframe 262, accumulation of heat implant 263, institute
State combustion chamber shell 261 to be fixed on installation underframe 262 for cylindrical cavity, installation underframe 262 is provided with installing hole and (does not schemes
Show);Combustion chamber 26 plays savings energy in the present invention, maintains furnace temperature, the effect of stabilizing equipment duty.
Described combustion chamber 26 may be used without big test metal shell and constitutes combustion chamber shell 261, so can be without accumulation of heat implant
263, big energy can be put aside.
As shown in Figure 6, combustion chamber lowering or hoisting gear 3 includes base 31, adjusting rod 32, lifting screw 33, lifting jacking block 34, rotates
Adjusting rod 32 can realize the raising and lowering of lifting screw 33, thus moves up and down lifting jacking block 34, and lifting jacking block 34 is permissible
Being stuck in (not shown) on combustion chamber 26, come loose after the bolt of fastening combustion chamber 26, combustion chamber 26 casing is with lowering or hoisting gear rise and fall;Described
Combustion chamber lowering or hoisting gear 3 also can be installed motor and drive lifting screw 33 to rotate, thus realizes electrical control.
Mesh of the present invention provides a kind of cyclone burning water heater.The principle of the invention is, uses the mode that negative pressure sucks
By the gas-solid mixture of little grain biomass fuel (straw etc. as after rice husk, pulverizing) and air by bottom of furnace body tangential admission
Mouth sucks and lights, and owing to being provided with two tangential admission mouths, the material of burning forms double upper rotational gas flow;Material is with double upper rotations
Gas stream burning also rises, when material burns into grey matter completely, quality lighten after automatically with imperfect combustion feed separation and by
Body of heater top tangential discharging opening sucking-off body of heater.Meanwhile, imperfect combustion material slowly falls to continuing with rotational gas flow lower in the middle of body of heater
Afterflame burns, and at body of heater stage casing formation suspension sustained combustion layer with sustained ignition subsequent material, thus reaches continuous feed, fires continuously
Burning, continuous ash discharge, the benefit of lasting heat supply.