CN101684945A

CN101684945A - Ejection mixed type combustion device

Info

Publication number: CN101684945A
Application number: CN200810151193A
Authority: CN
Inventors: 钟景武
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2010-03-31

Abstract

The invention provides an ejection mixed type combustion device which comprises an air supply device (1) and a combustion chamber (2), wherein the combustion chamber (2) is arranged at the upper end of the air supply device (1), and the air supply device (1) comprises an air pipe (102), a blower (101) and an annular conduit (103), wherein the blower (101) is arranged at one end of the air pipe (102), the annular conduit (103) is arranged at the other end of the air pipe (102), and a plurality of controllable secondary air speed air inlet pipes (104) are arranged on the annular conduit (103); the combustion chamber (2) comprises an inner shell (8) and an outer shell (7), wherein a combustor (3) is arranged in the inner shell (8), a combustion cavity (5) is arranged at the upper end of the inner shell (8), and a fuel supply chamber (6) is arranged between the inner shell (8) and the outer shell (7). The invention solves the technical problems of nonuniform mixing of combustible materialsand air, imperfect combustion, unstable flame, low utilization ratio of available heat and serious pollution of traditional ranges. The ejection mixed type combustion device has the advantages of simple structure, convenient use and maintenance, environmental protection and the like.

Description

Ejection mixed type combustion device

Technical field

The present invention relates to a kind of burner, be specifically related to a kind of ejection mixed type combustion device.

Background technology

Burner uses more extensive in every field, be specifically related to civil boiler, metallurgy industry, and foundry industry forges industry, and field such as domestic life cooking stove.Press the kind of comburant (-rent) and divide, burner is divided into gas burner, coal-fired combusting device, oil burner, faggot straw burning device etc.As everyone knows, human 5,000 years of civilization development history constantly be unable to do without energy fuel and promotes the productivity development and improve the human life quality, is specifically related to utilize in the various combustibles of the earth and the air mixing of oxygen implement ignition.The mankind adhere to continuous practice in the historical long river of development of civilization, sum up innovation, and above-mentioned all kinds of form burners improve the heat energy utilization rate by combustible and Air mixing, minimizing is to the pollution of atmosphere, especially in modern age, countries in the world are developed country and developing country's process of industrialization quickening particularly, follows automobile, iron and steel, metallurgy, the high speed development of coal electrician industry and bring highly energy-consuming, maximum discharge, high pollution jeopardizes human and earth energy and the sustainable development of natural ecological environment balance.So the limited energy resources of the rational exploitation and utilization earth, the conservation of nature ecological environment, the energy-saving and emission-reduction of developing a circular economy make human and earth natural ecological environment obtains the main flow direction that harmonious sustainable development becomes the world today.

Human long-term practice is understood, combustible and air undercompounding, just not exclusively, flame instability must bring the heat effective rate of utilization low in burning, the smoke pollution serious problems, corresponding increase burning cost, the harm natural ecological environment, this also is the problem that troubles people for a long time, especially the vast rural urbanization resident of China considerable part also is in the backward state, in order to save money, all there is continuity to use, tradition falls behind, inefficient cooking stove heatable adobe sleeping platform burns faggot or fire coal is cooked, heat up water, heating, effectively the heat energy utilization rate is extremely low, even every year is in the ground with a large amount of renewable sources of energy materials such as stalk, weeds, leaf, branch is as incineration of waste, a large amount of regenerative resources had both been wasted, again the severe contamination atmosphere.This is how the vast rural area of current China uses least cost, minimum input, high conversion efficiency, develop energy, the effectively key subjects of conservation of nature ecological environment.

Summary of the invention

The object of the present invention is to provide a kind of mixed type burner, its solve traditional cooking stove combustible mix with air inhomogeneous, incomplete combustion, flame instability, the efficient heat utilization rate is low, with serious pollution technical problem.

Technical scheme of the present invention is:

A kind of ejection mixed type combustion device, comprise air-supply arrangement 1, be arranged at the combustion chamber 2 of air-supply arrangement 1 upper end, described combustion chamber 2 comprises conical inner casing 8, and cylindrical housing 7, described inner casing 8 hypomere zones are provided with burner 3, and secondary wind inleting tube 104, and described inner casing 8 epimere zones are provided with the combustion chamber 5 that promising broken fuel mixes mutually, collides with air; Annular chamber between described inner casing 8 and the shell 7 is provided with broken fuel supply room 6, described air-supply arrangement 1 comprises blower fan 101, the air outlet place of described blower fan 101 is provided with airduct 102, and be connected with ring duct 103 that the other end of airduct 102 is connected, be communicated with controlled primary air velocity playpipe 301 and a plurality of controlled secondary wind speed blast pipe 104 of a plurality of uniform arrangements on the described ring duct 103.It is characterized in that: described burner 3 comprises primary air velocity playpipe 301, and the port of export of described primary air velocity playpipe 301 is provided with injector 302, and the port of export of described injector 302 is provided with playpipe group 303; Described primary air velocity playpipe 301 comprises and sprays straight length 311, and sprays the Taper Pipe section 321 that straight length 311 is connected, and is arranged at the contracting nozzle 331 on the Taper Pipe section 321; Described injection straight length 311 is provided with control valve 341, described injector 302 comprises the suction casing straight tube 312 that is connected with contracting nozzle 331, be arranged at first contraction section 322 of straight tube 312 ports of export, be arranged at first diffuser 332 of first contraction section, 322 ports of export, be arranged at second diffuser 342 of first diffuser, 332 ports of export, and second contraction section 352 that is arranged at second diffuser, 342 ports of export; The import department of described suction casing injector straight tube 312 is provided with annular mouth 3121; Described playpipe group 303 is arranged on second contraction section, 352 ports of export, and described playpipe group 303 is made up of a plurality of playpipes 313, and described playpipe 313 is provided with spray tube holes 323.

Above-mentioned combustion chamber 2 also comprises the gas ignition control device 4 that is arranged at combustion chamber one side, described burner igniter 401 comprises gas burner 411, the kindling material burner 412 of ignition combustion device 411, the combustion gas sparking control valve 452 of kindling material burner 412 and the gas transmission gauge tap 441 of ignition combustion device 411 ignite; The gas nozzle of described gas burner 411 is taken over end and is connected with an end of gas transmission gauge tap 441 by appendix 421, the other end of gas transmission gauge tap 441 is connected with an end of appendix 423, and the other end of appendix 423 connects mouth with the gas transmission that supplies gas transmission three-way pipe 442 and is connected; The gas nozzle of described kindling material burner 412 is taken over end and is connect mouth by appendix 422 with the gas transmission of combustion gas sparking control valve 452 and be connected, another of combustion gas sparking control valve 452 connect mouth with supply gas transmission three-way pipe 442 another connect mouth and be connected.

The spray centerline of the contracting nozzle 331 of above-mentioned primary air velocity playpipe 301 overlaps with the central axis H of injector 302.

The injection central axis H of said burner 2 arranges around the centre line L of combustion chamber 2; The angle β that the injection central axis H of described each burner 3 constitutes is for waiting angle, and described angle β generally spends to 70 degree scopes 50, and for good, the injection central axis extended line of described each burner 1 and the central axis outside the combustion chamber are intersected in a bit with 60 degree.

Above-mentioned air-supply arrangement 1 also comprises the secondary air conduit 104 that is connected with ring duct 103, and institute's secondary air conduit 104 is provided with a plurality of revolving and pulls control valve 105; The central axis of described secondary air conduit 104 is evenly arranged around the central axis of combustion chamber; The angle ψ that described each secondary air conduit 104 central axis constitute is for waiting angle, and the angular range of described angle ψ is [50-70] degree, and for good, described each secondary air conduit 104 central axis extended line and combustion chamber central axis are intersected in a bit with 60 degree.

The lower end of above-mentioned combustion chamber 2 is provided with to revolve pulls control valve 10.

The outer surface coating heat-insulation layer 9 of above-mentioned inner casing 8; Described heat-insulation layer 9 is the silicate composite heat-insulating coating.Advantage of the present invention:

1. novel unique texture design realizes low cost with theoretical ingenious combination of aerothermodynamic, the low input, high conversion efficiency solves a large amount of regenerative resources in rural area, as: stalk, weeds, branch, the leaf the like waste is by being ground into broken fuel, injection sucks automatically continuously, follow a secondary air streams repeatedly to mix collision mutually and carry out complete Boiling Combustion, high efficient heat exchanging and flue gas keeps lower temperature, the purification environmental-protection discharging.

2. stalk, weeds, branch, leaf, broken section fuel price of particle is cheap, and same calorific value is scaled and comprises electric energy 1/5, combustion gas 1/5, fuel 1/3 is for invention can provide lasting fuel.

3. coupling energy-efficient water jacket heat exchanger pot seat pot body or energy-efficient multisection displacement heat exchanger in its combustion chamber, its thermal efficiency can be up to 85% to 95%, the cooking that realizes the cooking shower, heating high efficient heat exchanging low fuel consumption of heating up water.

4. working service simple in structure is convenient.

Description of drawings

Fig. 1 is the front view of burner.

Fig. 2 is the front view of ejection mixed type combustion device.

Fig. 3 is match front view after water jacket heat exchanger pot seat, the assembling of pot body and fume emission clarifier of ejection mixed type combustion device.

Fig. 4 is the front view after ejection mixed type combustion device and multisection displacement heat exchanger, fume emission clarifier are assembled.

The drawing reference numeral explanation:

The 1-air-supply arrangement; The 101-blower fan, the 102-airduct; The 103-ring duct, the controlled secondary wind inleting tube of 104-, 105-revolve pulls control valve; The 2-combustion chamber; The 3-burner, 301-primary air velocity playpipe, 311-sprays straight length, 321-Taper Pipe section, 331-receives place spout, 341-control valve, 302-injector, 312-straight length, 322-first contraction section, 332-first diffuser, 342-second diffuser, 352-second contraction section; 303-playpipe group; The 313-playpipe, the 323-spray tube holes; The 3121-annular mouth; 4-gas ignition control device, 411-gas burner, 421-appendix, 422-appendix; 412-kindling material burner, 441-gas transmission gauge tap, 442-three-way pipe, 452-combustion gas sparking control valve, 403-water supply installation, 413-control valve; The 5-combustion chamber; 6-fuel supply room; The 7-shell; The 8-inner casing; The 9-heat-insulation layer; 10-revolves and pulls control valve; The 11-clarifier; The 12-conduit; 13-siphon heat pipe; 4-pot seat; 15-pot body; The 16-shell, the 161-supply room; The 17-heat exchanger.

The specific embodiment

Referring to Fig. 1, the wind speed that is provided by blower fan ejects controlled high speed primary air flows from the spout of primary air velocity playpipe 301, form negative pressuren zone in the straight length (suction casing) 312 through injector 302, broken fuel such as stalk is inhaled into continually and mixes acceleration with air stream from the annular entrance 3121 of straight tube paragraph 312 and enters first contraction section 322, slow down then and enter first diffuser 332, after slowing down, enter second diffuser 342 once more, quicken to enter second contraction section 352 through fully mixing then, thereby keep certain kinetic energy, the spray centerline extended line of this spray tube holes 323 by the set a plurality of playpipes 313 along its injector central axis circumference uniform distribution of the cone Wen tubular type injector structure and the port of export thereof are set meets at and is compiled in a bit, its folder that crosses such as is changed at angle, generally spending to 70 degree scopes 50, is good with 60 degree.By above-mentioned these measure is set, solves effectively that broken section of stalk particle sucks automatically and fully mix with certain kinetic energy and eject, implement collision mutually, more fully mix once more, the back generation Boiling Combustion of igniting of the gas igniter through being provided with primary air flows.

Referring to Fig. 2,

Above-mentioned a plurality of burner 3 is set around the uniform combustion chamber 2 that rearranges of conical inner casing 8 bottom section central axis, it is to wait angle that this burner 3 sprays the central axis angle that constitutes that crosses, generally spend to 70 degree scopes 50, with 60 degree is good, and the extended line of the extended line of the injection central axis H of each burner 3 and the axis L of combustion chamber 2 is intersected in a bit, like this each burner 3 in its combustion chamber 2 draw spray collide out broken burnings such as stalk mixes the Boiling Combustion thing with air stream and mutual the collision taken place once more makes its mixed combustion more abundant, realize bigger stronger Boiling Combustion.Inner casing 8 and inner casing outer surface coating composite heat-isolating silicate heat-insulation layer 9 is set in the combustion chamber 2, the main thermal-flame hot-fluid that plays assurance combustion chamber internal combustion is complementary with it pot body 15 is set, and water jacket heat exchanger or the abundant heat transfer process of many displacement heat exchangers reduce thermal loss.Be provided with gas ignition control device 4 in the combustion chamber 2, kindling material burner 412 in the gas ignition control device 4, gas burner 411, gas transmission gauge tap 441, combustion gas sparking control valve 452, appendix 421, appendix 422 and for the 442 corresponding supporting settings of gas transmission three-way pipe, gas transmission gauge tap 441 and combustion gas sparking control valve 452 mainly play progressively starting and light in the combustion chamber 2 each burner and spray broken fuel such as stalks and flow the thing Boiling Combustion effect of colliding that mixes with air.Inner casing 8 conical lower section settings are around the secondary air conduit 103 of a plurality of band bispin of the uniform arrangement of combustion chamber 2 central axis plate gauge tap in the combustion chamber 2, the extended line of its each air port air intake center line H and the extended line of combustion chamber 2 centre line L are intersected in a bit, its each air port air intake centreline space angle is to wait angle, generally spending to 70 degree scopes 50, is good with 60 degree.The vortex flow regulated quantity of implementing secondary air is carried out aftercombustion for broken section to the imperfect combustion particles such as stalk of slipping through the net, and guarantees that broken fuel such as stalk that device burner 1 in the combustion chamber 2 sprays collision continually are in air stream mixture to finish the Boiling Combustion state strongly.The conical lower section center of inner casing 8 is compiled conduit 12 that burning place is provided with band rotating plate control valve 10 and is mainly play and in time conveniently emit the effect of after-flame dust in the combustion chamber 2, the subsidiary burner of filling in paper in the combustion chamber bottom inlet starting ignition ignition combustion chamber 23 that also rises under not having combustion gas starting ignition situation, spray broken fuel such as collision stalk and carry out the Boiling Combustion effect with air stream mixture, the shell 7 of combustion chamber and inner casing 8 outer surfaces apply the fuel cavity 6 that formation between the thermal insulating warm-keeping layer 9 is put broken section of particle such as stalk.

Referring to Fig. 3,

The multi-turn be complementary with it be uniformly distributed along the circumference staggered siphon heat pipe 13, water jacket heat exchanger pot seat 14 are set on combustion chamber 2, pot body 15 and the flue gas soot emissions clarifier 11 that matches thereof, it is also relatively good to reach energy-efficient functions such as cooking, heat up water and fume environment protection emission effect, at heat exchanger 17 shell 16 is set, constitutes the supply room 161 that increases broken section storage capacitys of particle such as stalk.

Referring to Fig. 4

On combustion chamber 2, be provided with and its band that is complementary many round be uniformly distributed along the circumference the multisection displacement type energy-saving heat exchanger 17 of staggered siphon heat pipe 13 and the flue gas soot emissions clarifiers 11 that match thereof, realized heating of high energy-saving environment protection straw fuel warm air air-conditioning and flue gas flue dust environment protection emission.Outer setting at its heat exchanger 17 has shell 16, constitutes the supply room 161 that increases broken section fuel storage amounts of particle such as stalk.

Claims

1. ejection mixed type combustion device, comprise air-supply arrangement (1), be arranged at the combustion chamber (2) of air-supply arrangement (1) upper end, described air-supply arrangement (1) comprises airduct (102), be arranged at the blower fan (101) of airduct (102) one ends and the ring duct (103) of airduct (102) other end, described ring duct (103) is provided with a plurality of controlled secondary wind speed blast pipes (104); Described combustion chamber (2) comprises inner casing (8) and shell (7), be provided with burner (3) in the described inner casing (8), described burner (3) is arranged on the ring duct (103), the upper end of described inner casing (8) is provided with combustion chamber (5), is provided with fuel supply room (6) between described inner casing (8) and the shell (7); The lower end of described combustion chamber (2) is provided with conduit (12), described conduit (12) is provided with to revolve pulls control valve (10), it is characterized in that: described burner (3) comprises controlled primary air velocity playpipe (301), be arranged at the injector (302) of the port of export of controlled primary air velocity playpipe (301), and the port of export that is arranged at injector (302) is provided with playpipe group (303); Described controlled primary air velocity playpipe (301) and ring duct (103) together with; Described controlled primary air velocity playpipe (301) comprises and sprays straight length (311), and sprays the Taper Pipe section (321) that straight length (311) is connected, and is arranged at the contracting nozzle (331) on the Taper Pipe section (321); Described injection straight length (311) is provided with control valve (341); Described injector (302) comprises the suction casing straight tube (312) that is connected with contracting nozzle (331), be arranged at first contraction section (322) of straight tube (312) port of export, be arranged at first diffuser (332) of first contraction section (322) port of export, be arranged at second diffuser (342) of first diffuser (332) port of export, and second contraction section (352) that is arranged at second diffuser (342) port of export; The import department of described suction casing injector straight tube (312) is provided with annular mouth (3121); Described playpipe group (303) is arranged at second contraction section (352) port of export, and described playpipe group (303) is made up of a plurality of playpipes (313), and described playpipe (313) is provided with spray tube holes (323).

2. ejection mixed type combustion device according to claim 1 is characterized in that:

Described combustion chamber (2) also comprises the gas ignition control device (4) that is arranged at combustion chamber (2) one sides, described gas ignition control device (4) comprises gas burner (411), the kindling material burner (412) of gas burner (411), the combustion gas sparking control valve (452) of kindling material burner (412) and the gas transmission gauge tap (441) of lighting gas burner (411) ignite; The gas nozzle of described gas burner (411) is taken over end and is connected by the end of appendix (421) with gas transmission gauge tap (441), the other end of gas transmission gauge tap (441) is connected with an end of appendix (423), and the other end of appendix (423) connects mouth with the gas transmission that supplies gas transmission three-way pipe (442) and is connected; The gas nozzle of described kindling material burner (412) is taken over end and is connect mouth by appendix (422) with the gas transmission of combustion gas sparking control valve (452) and be connected, combustion gas strike sparks another of control valve (452) connect mouth with supply gas transmission three-way pipe (442) another connect mouth and be connected.

3. ejection mixed type combustion device according to claim 1 and 2 is characterized in that: the spray centerline of the contracting nozzle (331) of described primary air velocity playpipe (301) overlaps with the central axis H of injector (302).

4. ejection mixed type combustion device according to claim 3 is characterized in that: the injection central axis H of described burner (2) arranges around the centre line L of combustion chamber (2); The angle β that the injection central axis of described each burner (3) and H constitute for etc. angle, described angle β generally spends to 70 degree scopes 50, for good, injection central axis extended line of described each burner (1) and the central axis outside the combustion chamber are intersected in a bit with 60 degree.

5. ejection mixed type combustion device according to claim 4, it is characterized in that: described air-supply arrangement (1) also comprises the secondary air conduit (104) that is connected with ring duct (103), and described secondary air conduit (104) is provided with a plurality of revolving and pulls control valve (105); The central axis of described secondary air conduit (104) is evenly arranged around the central axis of combustion chamber; The angle ψ that described each secondary air conduit (104) central axis constitutes is for waiting angle, and the angular range of described angle ψ is [50-70] degree, and for good, described each secondary air conduit 104 central axis extended line and combustion chamber central axis are intersected in a bit with 60 degree.

6. ejection mixed type combustion device according to claim 5 is characterized in that: the outer surface coating heat-insulation layer (9) of described inner casing (8); Described heat-insulation layer (9) is the silicate composite heat-insulating coating.