CN209147149U - 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
CN209147149U
CN209147149U CN201822027593.7U CN201822027593U CN209147149U CN 209147149 U CN209147149 U CN 209147149U CN 201822027593 U CN201822027593 U CN 201822027593U CN 209147149 U CN209147149 U CN 209147149U
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China
Prior art keywords
wind path
counter
secondary air
air
combustion coal
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CN201822027593.7U
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Chinese (zh)
Inventor
路兴峰
陈夫保
张文波
任孝臣
孟令波
刘兆龙
姜源
唐勇
李虎
夏玉江
周彪
张彦勇
谭光韧
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Yankuang Donghua Heavy Industry Co. Ltd.
Yanmei Blue Sky Clean Energy Co., Ltd.
Zoucheng Furnace Manufacturing Branch of Yankuang Donghua Heavy Industry Co., Ltd.
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Zoucheng Furnace Manufacturing Branch Of Yankuang Donghua Heavy Industry Co Ltd
Yankuang Donghua Heavy Industry Co Ltd
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Abstract

The utility model 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 utility model 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 utility model relates to Domestic coal stove technical field more particularly to a kind of secondary air-distributing devices.This is practical new Type 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.
Utility model content
The purpose of the utility model is to provide a kind of secondary air-distributing devices for counter-combustion coal stove, can promote burning effect Rate reduces pollutant emission.The another object of the utility model is to provide a kind of counter-combustion coal stove.
To achieve the above object, the utility model provides a kind of secondary air-distributing device of counter-combustion coal stove, including respectively The first wind path and the second wind path that cooking quirk two sides are arranged in and are laterally extended, the two is connected to by intermediate wind path, 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 vertically set The third wind path connection set, 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 utility model additionally provides a kind of counter-combustion coal stove, including secondary air-distributing device described in any of the above embodiments.
Secondary air-distributing device provided by the utility model, including be separately positioned on cooking quirk two sides and be laterally extended The first wind path and the second wind path, the two is connected to by intermediate wind path, and first wind path and second wind path all have logical To multiple air holes of the cooking quirk;Second wind path is also connected to vertically arranged third wind path, the third wind path Bottom be in communication with the outside by overfiren air port.In this way, from the Secondary Air and the cooking quirk flowed out in the air holes Flue gas is mixed, and is improved flue gas, jet-black burn-up efficiency, and reduce the discharge of the pollutants such as jet-black, CO, is also improved furnace Has efficiency of combustion.
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 utility model has the advantages that corresponding, repeats no more.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structural schematic diagram of counter-combustion coal stove provided by the utility model;
Fig. 2 is the structural schematic diagram of the secondary wind path of counter-combustion coal stove provided by the utility model;
Fig. 3 is the air holes set-up mode schematic diagram of counter-combustion coal stove provided by the utility model.
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
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-Fig. 3 is please referred to, Fig. 1 is the structural schematic diagram of counter-combustion coal stove provided by the utility model;Fig. 2 is this reality With the structural schematic diagram of the secondary wind path of novel provided counter-combustion coal stove;Fig. 3 is provided by the utility model counter combusts The air holes set-up mode schematic diagram of coal stove.
In the first specific embodiment, counter-combustion coal stove provided by the utility model, furnace body is by liner and outer gallbladder Double-layer 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 utility model includes the One wind path 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.
Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments Explanation be merely used to help understand the method and its core concept of the utility model.It should be pointed out that for the art For those of ordinary skill, without departing from the principle of this utility model, several change can also be carried out to the utility model Into and modification, modifications and modifications also fall within the protection scope of the claims of the utility model.

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.
CN201822027593.7U 2018-12-04 2018-12-04 Counter-combustion coal stove and its secondary air-distributing device Active CN209147149U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822027593.7U CN209147149U (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
CN201822027593.7U CN209147149U (en) 2018-12-04 2018-12-04 Counter-combustion coal stove and its secondary air-distributing device

Publications (1)

Publication Number Publication Date
CN209147149U true CN209147149U (en) 2019-07-23

Family

ID=67289105

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822027593.7U Active CN209147149U (en) 2018-12-04 2018-12-04 Counter-combustion coal stove and its secondary air-distributing device

Country Status (1)

Country Link
CN (1) CN209147149U (en)

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Effective date of registration: 20190821

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

Co-patentee after: Yanmei Blue Sky Clean Energy Co., Ltd.

Patentee after: Yankuang Donghua Heavy Industry Co. Ltd.

Co-patentee 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

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

Patentee before: Yankuang Donghua Heavy Industry Co. Ltd.