CN201875751U - High-efficiency return air furnace - Google Patents

High-efficiency return air furnace Download PDF

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Publication number
CN201875751U
CN201875751U CN2010206245866U CN201020624586U CN201875751U CN 201875751 U CN201875751 U CN 201875751U CN 2010206245866 U CN2010206245866 U CN 2010206245866U CN 201020624586 U CN201020624586 U CN 201020624586U CN 201875751 U CN201875751 U CN 201875751U
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CN
China
Prior art keywords
combustion chamber
return air
shaft
furnace
port
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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.)
Expired - Fee Related
Application number
CN2010206245866U
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Chinese (zh)
Inventor
周海山
Original Assignee
周海山
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Filing date
Publication date
Application filed by 周海山 filed Critical 周海山
Priority to CN2010206245866U priority Critical patent/CN201875751U/en
Application granted granted Critical
Publication of CN201875751U publication Critical patent/CN201875751U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A return air furnace is simple in structure, convenient in use and high in combustion efficiency. A fan cover is added to the periphery of a furnace core, and a spacing between the fan cover and the furnace core is used as a secondary air inlet sandwich layer. The return air furnace solves the problem of difficulty in adding a secondary air inlet sandwich layer to a return air furnace in the prior art due to a return air sandwich layer of the return air furnace in the prior art. In addition, the fan cover, a flame blocking ring and the furnace core are movably connected so that the furnace core can be replaced conveniently. The return air furnace with secondary air inlet can realize sufficient combustion of fuel including both coal and firewood, is smoke-free, generates less dust, not only improves heat efficiency and saves the fuel, but also can reduce smoke and dust pollution, and achieves the purposes of energy conservation and emission reduction.

Description

Efficient return air furnace
Technical field: the utility model relates to a kind of air return stove, relates in particular to a kind of efficient return air furnace that is provided with secondary air.
Background technology: known present air return stove utilizes the heat that is trapped in the interlayer that extraneous air is heated because be provided with the return air interlayer, so be used to burn bavin or burn coal good heating effect is arranged all.But not enough is that the combustion chamber of this air return stove is not provided with secondary air, can not fully burn so cause the oxygen supply deficiency, has wasted fuel.
Summary of the invention: because the structure of stove seat, shaft, stove table, grate and the flue of air return stove all is the public technology of comparative maturity, therefore this part is not described further.At the above-mentioned defective that exists in the prior art, the utility model improves the internal structure of air return stove emphatically, and a kind of simple in structure, easy to use, air return stove that efficiency of combustion is high is provided.
To achieve these goals, the technical scheme that its technical problem that solves the utility model adopts is: it comprises the shaft that is fixed on the stove seat, the flue that is fixed on the stove table on the shaft and is fixed on the shaft outside, it is characterized in that: fan housing and combustion chamber place in the shaft, the inside of shaft lower end is provided with annular supporting plate, fan housing and combustion chamber are movably placed on the supporting plate, fan housing and shaft are at interval as the return air interlayer, fan housing and combustion chamber interval 10 to 20mm are as the secondary air interlayer, the supporting plate of corresponding secondary air interlayer lower end is provided with air inlet, the fire-stop ring of corresponding secondary air interlayer upper end is provided with fresh air inlet, fire-stop ring is movably connected in wind and puts and the combustion chamber upper port, and corresponding combustion chamber lower port is provided with grate.
Described fan housing is a cylindrical shape, and upper port and fire-stop ring flexibly connect, and make with steel plate or cast iron.
Described combustion chamber is up-small and down-big tubular, and upper port and fire-stop ring flexibly connect, and make with refractory material.
The described fire-stop ring first half is tubaeform, and Lower Half is a tubular, and ring is provided with 1 to 2 row's fresh air inlet week on its barrel, and pitch of holes 20 is to 30mm, and bore dia 5 is made with steel plate or cast iron to 10mm.
Described supporting plate is a ring plate, and cylindrical is fixedlyed connected with the shaft Lower Half, and middle corresponding combustion chamber lower port has big hole, and the big hole diameter equals circular diameter in the combustion chamber lower port, is provided with fresh air inlet between the cylindrical of supporting plate and interior circle.
Compare with the air return stove of prior art, the utility model is owing to adopted technique scheme, increased a fan housing in the periphery of combustion chamber, the interval of fan housing and combustion chamber is as the secondary air interlayer, overcome the prior art air return stove and be difficult to increase the difficult problem that secondary advances time wind interlayer because the return air interlayer is arranged, in addition, because fan housing and fire-stop ring and combustion chamber all are to flexibly connect, the replacing combustion chamber is very convenient, the air return stove that is provided with secondary air is no matter with coal or make fuel with bavin and can both fully burn, and smokelessly lacks dirt, not only improved the thermal efficiency and fuel savings, and can also reduce smoke contamination, reached the purpose of energy-saving and emission-reduction.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a supporting plate floor map of the present utility model;
Fig. 3 is a fire-stop ring longitudinal side three-dimensional view of the present utility model;
Fig. 4 is a fan housing longitudinal side three-dimensional view of the present utility model.
Among the figure: 1-stove seat, 2-shaft, 3-stove table, 4-return air interlayer, 5-flue, 6-fire-stop ring, 7-fresh air inlet, 8-fan housing, 9-two air intake interlayers, 10-combustion chamber, 11-air inlet, 12-supporting plate, 13-grate.
The specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
Shaft (2) lower end is fixed on the stove seat (1), stove table (3) is fixed on shaft (2) upper end, fan housing (8) and combustion chamber (10) place in the shaft (2), the inside of shaft (2) lower end is provided with annular supporting plate (12), its cylindrical is fixedlyed connected with shaft (2) Lower Half, middle corresponding combustion chamber (10) lower port has a big hole, and the great circle aperture equals the lower port in the combustion chamber (10), is provided with fresh air inlet (7) between the cylindrical of supporting plate (12) and interior circle; For the ease of changing combustion chamber (10), fan housing (8) and combustion chamber (10) are movably placed on the supporting plate (12), and upper port and fire-stop ring (6) flexibly connect, and are detained in interlayer in order to heating in order to make heat, and fan housing (8) and shaft (2) are at interval as return air interlayer (4); Fan housing (8) and combustion chamber (10) interval 10 to 20mm are as secondary air interlayer (9), the supporting plate (12) of corresponding secondary air interlayer (9) lower end is provided with air inlet (11), the fire-stop ring (6) of corresponding secondary air interlayer (4) upper end is provided with fresh air inlet (7), fire-stop ring (7) is movably connected in fan housing (8) and combustion chamber (10) upper port, and corresponding combustion chamber (10) lower port is provided with grate (13).

Claims (5)

1. efficient return air furnace, it comprises the shaft that is fixed on the stove seat, the flue that is fixed on the stove table on the shaft and is fixed on the shaft outside, it is characterized in that: fan housing and combustion chamber place in the shaft, the inside of shaft lower end is provided with annular supporting plate, fan housing and combustion chamber are movably placed on the supporting plate, fan housing and shaft are at interval as the return air interlayer, fan housing and combustion chamber interval 10 to 20mm are as the secondary air interlayer, the supporting plate of corresponding secondary air interlayer lower end is provided with air inlet, the fire-stop ring of corresponding secondary air interlayer upper end is provided with fresh air inlet, fire-stop ring is movably connected in wind and puts and the combustion chamber upper port, and corresponding combustion chamber lower port is provided with grate.
2. efficient return air furnace according to claim 1 is characterized in that: described fan housing is a cylindrical shape, and upper port and fire-stop ring flexibly connect, and make with steel plate or cast iron.
3. efficient return air furnace according to claim 1 is characterized in that: combustion chamber is up-small and down-big tubular, and upper port and fire-stop ring flexibly connect, and make with refractory material.
4. efficient return air furnace according to claim 1 is characterized in that: the fire-stop ring first half is tubaeform, and Lower Half is a tubular, and ring is provided with 1 to 2 row's fresh air inlet week on its barrel, and pitch of holes 20 is to 30mm, and bore dia 5 is made with steel plate or cast iron to 10mm.
5. efficient return air furnace according to claim 1, it is characterized in that: supporting plate is a ring plate, and cylindrical is fixedlyed connected with the shaft Lower Half, and middle corresponding combustion chamber lower port has big hole, the big hole diameter equals circular diameter in the combustion chamber lower port, is provided with fresh air inlet between the cylindrical of supporting plate and interior circle.
CN2010206245866U 2010-11-22 2010-11-22 High-efficiency return air furnace Expired - Fee Related CN201875751U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206245866U CN201875751U (en) 2010-11-22 2010-11-22 High-efficiency return air furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206245866U CN201875751U (en) 2010-11-22 2010-11-22 High-efficiency return air furnace

Publications (1)

Publication Number Publication Date
CN201875751U true CN201875751U (en) 2011-06-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206245866U Expired - Fee Related CN201875751U (en) 2010-11-22 2010-11-22 High-efficiency return air furnace

Country Status (1)

Country Link
CN (1) CN201875751U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434894A (en) * 2011-12-09 2012-05-02 聂明中 Oxygenation energy-saving multi-fuel air return furnace
CN102538020A (en) * 2012-02-22 2012-07-04 湖北蓝焰生态能源有限公司 Adjustable direct-fired biomass furnace and service method thereof
CN111023161A (en) * 2019-12-31 2020-04-17 熊玉昌 Efficient energy-saving environment-friendly air return furnace
CN111023162A (en) * 2019-12-31 2020-04-17 熊玉昌 Efficient energy-saving environment-friendly return air heating furnace

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434894A (en) * 2011-12-09 2012-05-02 聂明中 Oxygenation energy-saving multi-fuel air return furnace
CN102434894B (en) * 2011-12-09 2015-02-11 聂明中 Oxygenation energy-saving multi-fuel air return furnace
CN102538020A (en) * 2012-02-22 2012-07-04 湖北蓝焰生态能源有限公司 Adjustable direct-fired biomass furnace and service method thereof
CN111023161A (en) * 2019-12-31 2020-04-17 熊玉昌 Efficient energy-saving environment-friendly air return furnace
CN111023162A (en) * 2019-12-31 2020-04-17 熊玉昌 Efficient energy-saving environment-friendly return air heating furnace

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110622

Termination date: 20121122

C17 Cessation of patent right