CN109323290A - Counter-combustion coal stove and its secondary air-distributing device - Google Patents

Counter-combustion coal stove and its secondary air-distributing device Download PDF

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Publication number
CN109323290A
CN109323290A CN201811475959.5A CN201811475959A CN109323290A CN 109323290 A CN109323290 A CN 109323290A CN 201811475959 A CN201811475959 A CN 201811475959A CN 109323290 A CN109323290 A CN 109323290A
Authority
CN
China
Prior art keywords
wind path
air
counter
distributing
stove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811475959.5A
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Chinese (zh)
Inventor
谭光韧
刘兆龙
陈夫保
李虎
马喜红
路兴峰
姜源
孟令波
姜凯
张彦勇
周彪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yankuang Donghua Heavy Industry Co. Ltd.
Yanmei Blue Sky Clean Energy Co., Ltd.
Zoucheng Furnace Manufacturing Branch of Yankuang Donghua Heavy Industry Co., Ltd.
Original Assignee
Zoucheng Furnace Manufacturing Branch Of Yankuang Donghua Heavy Industry Co Ltd
Yankuang Donghua Heavy Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zoucheng Furnace Manufacturing Branch Of Yankuang Donghua Heavy Industry Co Ltd, Yankuang Donghua Heavy Industry Co Ltd filed Critical Zoucheng Furnace Manufacturing Branch Of Yankuang Donghua Heavy Industry Co Ltd
Priority to CN201811475959.5A priority Critical patent/CN109323290A/en
Publication of CN109323290A publication Critical patent/CN109323290A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00Passages or apertures for delivering secondary air for completing combustion of fuel 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00Stoves or ranges
    • F24B1/02Closed stoves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00Stoves or ranges
    • F24B1/18Stoves with open fires, e.g. fireplaces
    • F24B1/191Component parts; Accessories

Abstract

The invention discloses a kind of secondary air-distributing devices for counter-combustion coal stove, including being separately positioned on cooking quirk two sides and the first wind path and the second wind path that are laterally extended, the two is connected to by intermediate wind path, and first wind path and second wind path all have the multiple air holes for leading to the cooking quirk;Second wind path is also connected to vertically arranged third wind path, and the bottom of the third wind path is in communication with the outside by overfiren air port.In this way, being mixed from the Secondary Air flowed out in the air holes with the flue gas in the cooking quirk, flue gas, jet-black burn-up efficiency is improved, and reduce the discharge of the pollutants such as jet-black, CO, also improve stove efficiency of combustion.The invention discloses a kind of counter-combustion coal stoves including above-mentioned secondary air-distributing device.

Description

Counter-combustion coal stove and its secondary air-distributing device
Technical field
The present invention relates to Domestic coal stove technical field more particularly to a kind of secondary air-distributing devices.The invention further relates to A kind of counter-combustion coal stove including above-mentioned secondary air-distributing device.
Background technique
In China rural area and suburban area, at least 200,000,000 people use the coal heating mode of relative distribution, not only efficiency It is low, seriously polluted, and the influence to environment is several times as much as ratio shared by its fuel consumption.
Main reason is that the combustion process of Domestic coal stove all has periodicity, burning initial stage is easy lack of air, coal The coal gas that pyrolytic gasification generates is unable to full combustion, a large amount of to poison with combustible component with flue gas emission, causes environmental pollution and energy Amount loss;Late combustion coal seam is thinned, and excessive air can reduce furnace temperature and heat transfer efficiency again, and increase heat loss due to exhaust gas.Have The type of furnace burning of coal efficiency is only improved by high-temperature oxygen-enriched mode, but can increase nitrogen oxides (NOx) discharge.Separately Outside, improving ignition temperature also will increase desulfurization back reaction, reduce desulfuration in furnace efficiency.Therefore, jet-black, CO and NOx, SO2 are released Coupling emission problem be long-standing technological difficulties in combustion technology.
Currently, Domestic coal stove mostly uses positive burn and instead two kinds of principles of burning.
Mostly using common positive burning principle, air enters Domestic coal stove from furnace bottom, passes through entire burner hearth, burning Process has periodically, and burning initial stage is easy lack of air, and the coal gas of coal pyrolytic gasified generation is unable to full combustion, a large amount of to poison With combustible component with flue gas emission, environmental pollution and energy loss are caused;Late combustion coal seam is thinned, and excessive air can drop again Low furnace temperature and heat transfer efficiency, and increase heat loss due to exhaust gas.Some type of furnaces only improve burning of coal by high-temperature oxygen-enriched mode Efficiency, but discharged nitrous oxides can be increased.
Anti- principle of burning refers to that high-temperature flue gas is taken out some or all low-temperature space heating for being sent to burner hearth does not fire The coal of burning so that coal be easy burning, burning more thoroughly.Benefit is that fuel availability is relatively high, ash content carbon ratio It is lower.But more return structures need to be used by instead burning principle stove, and stove volume is big, and it is at high cost, it is unfavorable for promoting, uses.
Summary of the invention
The object of the present invention is to provide a kind of secondary air-distributing device for counter-combustion coal stove, can with improving combustion efficiency, Reduce pollutant emission.It is a further object of the present invention to provide a kind of counter-combustion coal stoves.
To achieve the above object, the present invention provides a kind of secondary air-distributing devices of counter-combustion coal stove, including are respectively set The first wind path and the second wind path in cooking quirk two sides and being laterally extended, the two are connected to by intermediate wind path, and described first Wind path and second wind path all have the multiple air holes for leading to the cooking quirk;Second wind path also with it is vertically arranged The connection of third wind path, the bottom of the third wind path is in communication with the outside by overfiren air port.
Preferably, the air-out direction of the air holes and the angle in flow of flue gas direction in the cooking quirk are obtuse angle.
Preferably, first wind path and second wind path all have the wall surface of oblique lower section, and the air holes is opened in On the wall surface.
Preferably, multiple air holes are evenly distributed.
Preferably, first wind path and second wind path protrude from the side wall of the cooking quirk, and the two it Between the pass area that is formed not less than the chimney of stove sectional area.
Preferably, first wind path and second wind path are respectively positioned in the cooking burner and the cooking quirk of stove Between coal-fired extreme higher position.
Preferably, the bottom setting of the third wind path is kept off for blocking or opening the overfiren air port of the overfiren air port Plate.
The present invention also provides a kind of counter-combustion coal stoves, including secondary air-distributing device described in any of the above embodiments.
Secondary air-distributing device provided by the present invention, including be separately positioned on cooking quirk two sides and be laterally extended One wind path and the second wind path, the two are connected to by intermediate wind path, and first wind path and second wind path all have and lead to institute State multiple air holes of cooking quirk;Second wind path is also connected to vertically arranged third wind path, the bottom of the third wind path Portion is in communication with the outside by overfiren air port.In this way, from the flue gas in the Secondary Air and the cooking quirk flowed out in the air holes It is mixed, improves flue gas, jet-black burn-up efficiency, and reduce the discharge of the pollutants such as jet-black, CO, also improve stove combustion Burn efficiency.
In further improved scheme, flow of flue gas direction in the air-out direction of the air holes and the cooking quirk Angle is obtuse angle, and it is more sufficient disorderly that this forms the Secondary Air flowed out in the air holes with the flue gas in the cooking quirk Stream, mixed effect are more preferable.
Counter-combustion coal stove provided by the present invention has the advantages that corresponding, repeats no more.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of counter-combustion coal stove provided by the present invention;
Fig. 2 is the structural schematic diagram of the secondary wind path of counter-combustion coal stove provided by the present invention;
Fig. 3 is the air holes set-up mode schematic diagram of counter-combustion coal stove provided by the present invention.
Appended drawing reference of the Fig. 1 into Fig. 3 is as follows:
1- coal filling hole;2- coal store;3- fire grate;4- cooking quirk;5- flue;6- smoke box;7- chimney;8- ash bucket;9- is resistance to Fiery material;Wind path among 10-;102- air holes;11- induced wind path;The first wind path of 13-;The second wind path of 14-;15- third wind path; 16- overfiren air port;20- water return outlet;The first sink of 21-;The second sink of 22-;23- third sink;24- water pipe;25- water outlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 3 is please referred to, Fig. 1 is the structural schematic diagram of counter-combustion coal stove provided by the present invention;Fig. 2 is institute of the present invention The structural schematic diagram of the secondary wind path of the counter-combustion coal stove of offer;Fig. 3 is that the air holes of counter-combustion coal stove provided by the present invention is set Set schematic diagram.
In the first specific embodiment, counter-combustion coal stove provided by the invention, furnace body is by liner and two layers of outer gallbladder Structure is constituted, and can be both made using steel plate;The two is tightly connected, to form recirculated water water jacket.
The coal store 2 of counter-combustion coal stove can be formed between the first sink 21 and stove antetheca, the furnace body antetheca Top is equipped with coal filling hole 1, and fire grate 3 can be set in the lower section of cooking quirk 4 and coal store 2, and ash bucket can be set in the bottom of fire grate 3 8.Refractory material 9 can also be arranged in the bottom surrounding of cooking quirk 4 and coal store 2.
The first sink 21 and the second sink 22 can be respectively set in the two sides of cooking quirk 4, in this way in the mistake of heating cooker The water of the first sink 21 and the second sink 22 will be also heated in journey, improve fuel utilization efficiency.
Cooking quirk 4 is also connected to flue 5, and the two sides of flue 5 are respectively the second sink 22 and third sink 23;In this way, high Warm flue gas is not directly entered chimney 7 after heating cooker, but has obtained further utilization, the thermal efficiency obtained into One step improves.
Smoke box 6 is located at the other side of third sink 23 and is connected to flue 5, therefore the flue gas that flue 5 is discharged will enter cigarette Case 6, and water pipe 24 therein is heated, so that the thermal efficiency is further improved.
First sink 21, the second sink 22, third sink 23 and water pipe 24 are connected to the water jacket, are followed to be formed Ring.Furnace body also has water return outlet 20 and water outlet 25.
The high-temperature flue gas of above-mentioned counter-combustion coal stove, can be to related water while the heating cooker of main heat exchange face and later Slot and water pipe are repeatedly reheated, and are realized the multiple utilization of high-temperature flue gas, are significantly improved the thermal efficiency.
In another embodiment, the structure inside coal store 2 can also be further improved.
Induced wind path 11 and wind-guiding wind path can be set in coal store 2, wherein the air inlet and fresh air of induced wind path 11 Source connection, air outlet are located at the top of coal store 2.
The air inlet of the wind-guiding wind path is similarly positioned in the top of coal store 2, and air outlet is located at the bottom of coal store 2.Draw Wind wind path 11 and the wind-guiding wind path can be located at the two sides of coal store 2, the essentially vertical extension of the two.
The air inlet of fresh air self-induced-air wind path 11 from new wind regime reaches the top of coal store 2, after being mixed with flue gas by 2 bottom of coal store is reached via wind-guiding wind path, so that the fuel of hot spots be made more fully to be burnt.In this way, coal storage Flue gas in storehouse 2 can constantly import hot spots, reduce the flue gas assembled in coal store 2, and then reduce in coal store 2 The generation of tar.
During coal, coal filling hole 1 opens that coal store 2 is made to be in communication with the outside, and flue gas therein can be more It moves smoothly through wind-guiding wind path and enters hot spots, equally can be avoided flue gas and escape.
As previously mentioned, the air inlet of induced wind path 11 is connected to new wind regime, it can be the directly connection external world, be also possible to connect Lead to secondary wind path.
In another embodiment specific implementation mode, the Secondary Air circuit of counter-combustion coal stove provided by the present invention includes the first wind Road 13 and the second wind path 14, the two is separately positioned on 4 two sides of cooking quirk, and generally laterally extends.
First wind path 13 is connected with the second wind path 14 by intermediate wind path 10, and Fig. 2 is to overlook visual angle.Second wind path 14 is also It is connected to the third wind path 15 being substantially vertically arranged, the bottom setting of third wind path 15 is in communication with the outside by overfiren air port 16. The bottom of third wind path 15 may be provided for blocking or opening the overfiren air port baffle of overfiren air port 16;Certainly, it is not provided with Baffle is also possible.
First wind path 13 and the second wind path 14 all have multiple air holes 102, and air holes 102 leads to cooking quirk 4.
The air-out direction of air holes 102 obviously will not be parallel with flow of flue gas direction in cooking quirk 4, therefore will be with cooking fire Flue gas in road 4 forms turbulent flow, and flue gas will be mixed with Secondary Air, improve flue gas utilization efficiency, reduces jet-black, CO etc. The discharge of pollutant improves stove and prolongs burning efficiency.
Flue gas and Secondary Air is mixed when flow of flue gas direction forms obtuse angle in the air-out direction of air holes 102 and cooking quirk 4 Close better effect.
In order to further increase the effect that flue gas is mixed with Secondary Air, the first wind path 13 and the second wind path 14 can also be set To protrude from the side wall of cooking quirk 4, and the pass area formed between the two is not less than the sectional area of the chimney 7 of stove.
First wind path 13 and the second wind path 14 can all have the wall surface of oblique lower section, so as to open up air holes 102 In on the wall surface.Multiple air holes 102 can be evenly distributed.
First wind path 13, the second wind path 14 and third wind path 15 can be bent by general steel plate and be realized, product can be used The leftover bits and pieces that material of main part generates when processing, cost are lower.
The first wind path is arranged in region between extreme higher position that can be coal-fired in the cooking burner and cooking quirk 4 of stove 13 and second wind path 14 can reduce between burning position and cooker in this way, air holes 102 is located on coal-fired extreme higher position Distance, to improve cooking intensity of fire.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said It is bright to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the ordinary skill of the art , without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for personnel, these improvement It is also fallen within the protection scope of the claims of the present invention with modification.

Claims (8)

1. a kind of secondary air-distributing device of counter-combustion coal stove, which is characterized in that including be separately positioned on cooking quirk (4) two sides and The first wind path (13) and the second wind path (14) being laterally extended, the two are connected to by intermediate wind path (10), first wind path (13) and second wind path (14) all has the multiple air holes (102) for leading to the cooking quirk (4);Second wind path (14) it is also connected to vertically arranged third wind path (15), the bottom of the third wind path (15) passes through overfiren air port (16) and outer Boundary's connection.
2. the secondary air-distributing device of counter-combustion coal stove as described in claim 1, which is characterized in that the air holes (102) goes out The angle in flow of flue gas direction is obtuse angle in wind direction and the cooking quirk (4).
3. the secondary air-distributing device of counter-combustion coal stove as claimed in claim 2, which is characterized in that first wind path (13) and Second wind path (14) all has the wall surface of oblique lower section, and the air holes (102) is opened on the wall surface.
4. the secondary air-distributing device of counter-combustion coal stove as claimed in claim 3, which is characterized in that multiple air holes (102) It is evenly distributed.
5. the secondary air-distributing device of counter-combustion coal stove according to any one of claims 1-4, which is characterized in that first wind Road (13) and second wind path (14) protrude from the side wall of the cooking quirk (4), and the pass face formed between the two Sectional area of the product not less than the chimney (7) of stove.
6. the secondary air-distributing device of counter-combustion coal stove as claimed in claim 5, which is characterized in that first wind path (13) and Second wind path (14) is respectively positioned in the cooking burner and the cooking quirk (4) of stove between coal-fired extreme higher position.
7. the secondary air-distributing device of counter-combustion coal stove as claimed in claim 6, which is characterized in that the third wind path (15) The overfiren air port baffle for blocking or opening the overfiren air port (16) is arranged in bottom.
8. a kind of counter-combustion coal stove, which is characterized in that including such as described in any item secondary air-distributing devices of claim 1-7.
CN201811475959.5A 2018-12-04 2018-12-04 Counter-combustion coal stove and its secondary air-distributing device Pending CN109323290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811475959.5A CN109323290A (en) 2018-12-04 2018-12-04 Counter-combustion coal stove and its secondary air-distributing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811475959.5A CN109323290A (en) 2018-12-04 2018-12-04 Counter-combustion coal stove and its secondary air-distributing device

Publications (1)

Publication Number Publication Date
CN109323290A true CN109323290A (en) 2019-02-12

Family

ID=65256112

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811475959.5A Pending CN109323290A (en) 2018-12-04 2018-12-04 Counter-combustion coal stove and its secondary air-distributing device

Country Status (1)

Country Link
CN (1) CN109323290A (en)

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Effective date of registration: 20190821

Address after: 273500 No. 5289 Xiwaihuan Road, Zoucheng City, Jining City, Shandong Province

Applicant after: Yankuang Donghua Heavy Industry Co. Ltd.

Applicant after: Yanmei Blue Sky Clean Energy Co., Ltd.

Applicant after: Zoucheng Furnace Manufacturing Branch of Yankuang Donghua Heavy Industry Co., Ltd.

Address before: 273500 No. 5289 Xiwaihuan Road, Zoucheng City, Jining City, Shandong Province

Applicant before: Yankuang Donghua Heavy Industry Co. Ltd.

Applicant before: Zoucheng Furnace Manufacturing Branch of Yankuang Donghua Heavy Industry Co., Ltd.