CN202018185U - Combined air furnace system - Google Patents

Combined air furnace system Download PDF

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Publication number
CN202018185U
CN202018185U CN2011200784966U CN201120078496U CN202018185U CN 202018185 U CN202018185 U CN 202018185U CN 2011200784966 U CN2011200784966 U CN 2011200784966U CN 201120078496 U CN201120078496 U CN 201120078496U CN 202018185 U CN202018185 U CN 202018185U
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CN
China
Prior art keywords
air furnace
air
main body
furnace
combination type
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Expired - Fee Related
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CN2011200784966U
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Chinese (zh)
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高本健
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高本健
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Priority to CN2011200784966U priority Critical patent/CN202018185U/en
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Publication of CN202018185U publication Critical patent/CN202018185U/en
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Abstract

The utility model relates to an air furnace device, in particular to a combined air furnace system, which comprises an air furnace body, wherein the air furnace body is externally connected with a chimney, the air furnace body is connected with a drying tunnel through an air pipeline, and a circulation fan is arranged between the air pipeline and the air furnace body. The combined air furnace system is characterized in that one side of the outside of the air furnace body is provided with a frequency converter and a safety device, and the other side of the outside of the air furnace body is connected with a low-pressure steam generator through a converting valve. The combined air furnace system has the characteristics that the heat exchange effect is good, the heat transfer effect of the inner wall of a hearth is ideal, the service life is long, the energy consumption is reduced, and the like.

Description

The combination type air furnace system
Technical field
The utility model relates to a kind of air furnace device, especially relates to a kind of combination type air furnace system.
Background technology
Present domestic advanced equipment with fuel indirect air is called hot air boiler, wherein the most frequently used is to adopt multi-head spiral slotted vane heat transfer technology and turbulent principle through what improve, strengthened the heat exchange effect, whole steel sheet multilayer sleeve formula structure, air and flue gas are the hot air boiler of two backhauls.This equipment is forced to be designed to very big drum and multilayer and arranges because the air heat transfer coefficient is little, and is bulky; In addition, because inboard wall of burner hearth influences service life because of the relatively poor easy cause thermal damage of crossing of conducting heat; More seriously because the flow velocity that flue gas and air flow process are long and necessary assurance is conducted heat and needed, have to use bigger smoke induced draught fan and air circulation fans, not only consuming electric power is bigger, goes back so be difficult to be advantageously used in the heating of the only building private residence and the greenhouse below 1,000 square metres of 500 square metres of building in the north areas.The utility model tries hard to address these problems.
Summary of the invention
The utility model mainly is at the above-mentioned technical problem of existing in prior technology, and the combination type air furnace system of a kind of good effect of heat exchange, inboard wall of burner hearth heat-transfer effect ideal, long service life, energy efficient is provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of combination type air furnace system, it includes the air furnace main body, the air furnace main body is externally connected with chimney, the air furnace main body is connected with Drying tunnel by air duct, be provided with circulating fan between air duct and the air furnace main body, a side that it is characterized in that described air furnace main body outside is provided with frequency converter and safety device, and the opposite side of described air furnace main body outside links to each other with low-pressure steam generator by changing logical valve.The utility model mainly improves low-pressure steam generator and is arranged between air furnace main furnace chamber outlet and the air furnace rear pass, and installs additional and change logical valve so that enable low-pressure steam generator when the needs low-pressure steam; Drying tunnel changes straight way into so that more be applicable to small air stove, easy operating and save manufacturing cost; Install air diverter valves additional so that can reach additional fresh air by the regulated at will air circulation; The circulating fan outlet adds Soft and connects the influence of minimizing blower fan vibrations to equipment; Install safety device additional in case accident makes heating surface cross cause thermal damage; Install frequency converter additional so that conveniently regulate air circulation, and further energy savings; In the air furnace main body, change design dismountable upper cover plate is arranged; It is detachable changing main heating surface, is convenient to be easy to install and maintain; Changing the air side heating surface is that high frequency welding spiral fin tube is strengthened conducting heat; Heat-transfer area is outside zinc-plated so that guarantee air cleaning, the anticorrosion that produces and increase the service life; Install salable fire door additional and adopt pressurized firing so that overheavy firing improves the thermal efficiency;
As preferably, described air furnace main body is by thermometer, and top cover plate, air heat face, median septum, main furnace chamber arrange successively that from top to bottom described air furnace lower body part is provided with burner and ash bucket, and described air furnace main body outside is provided with support.Install some thermometers additional and be used for monitoring burner hearth burning and air heat situation; The ash bucket that has sealable door also has been installed.
As preferably, described air heat face is made up of the circular fin steel pipe of the zinc-plated ratio-frequency welding of outer surface, described air heat face and main heating surface steel pipe UNICOM.
As preferably, described main furnace chamber be shaped as rectangle or square, be furnished with main heating surface and auxilliary heating surface in the main furnace chamber, the main furnace chamber bottom is provided with a slice wall with refractory lining, refracto, described wall with refractory lining, refracto one side is equipped with salable fire door and secondary wind inlet, on the auxilliary heating surface sight burner is housed also.Install the further overheavy firing of secondary wind inlet additional and can when the needs combustion gas, conveniently reequip gas combustion apparatus; Install flame-observing hole additional and be convenient to observe stove internal combustion situation.Install the wall with refractory lining, refracto overheavy firing additional.
As preferably, be respectively equipped with energy-saving water heater deduster and air-introduced machine between described air furnace main body and the chimney, also be provided with air blast on the described air furnace main body.
As preferably, be respectively arranged with dehumidifier and switching valve between described Drying tunnel and the air duct.
As preferably, described air furnace main body is provided with air furnace rear pass preheater.
As preferably, the ratio of the area of the air heat face in the described air furnace main body and the area of main heating surface is greater than 6.The heating surface of burner hearth arranges it is according to modification boiler furnace thermal calculation method, the design and calculation method design-calculated of also pressing experiment actual measurement correction of each species diversity of lateral thinking, and the ratio of definite thus air side heat-transfer area and furnace heating surface must be greater than 6.
Therefore, the utlity model has characteristics such as good effect of heat exchange, inboard wall of burner hearth heat-transfer effect ideal, long service life, energy efficient.
Description of drawings
Accompanying drawing 1 is the system schematic of the utility model combination type air furnace system.
Accompanying drawing 2 is the schematic diagram of the broken section of the air furnace main body in the utility model combination type air furnace system.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
Referring to accompanying drawing 1, the utility model by air furnace main body 1, air blast 2, frequency converter 3, safety device 4, energy-saving water heater 5, chimney 6, air-introduced machine 7, deduster 8, circulating fan 9, air duct 10, air furnace rear pass preheater 11, change logical valve 12,, low-pressure steam generator 13, switching valve 14, dehumidifier 15, Drying tunnel 16 etc. form.Can wholely use, also can be used in combination by option.
Clean air is through switching valve 14, air duct 10, sends into the air side of air furnace rear pass preheater 11 by circulating fan 9, and the air side that enters air furnace main body 1 after preheating continues to be heated and reaches 50--250 ℃ (can regulate and control as required).Enter Drying tunnel 16 again, behind the heating, drying material, cooled air enters dehumidifier 15 dehumidifying, enters switching valve 14 again and enters atmosphere or send into the 11 circulation heating of air furnace rear pass preheater by circulating fan 9 again.
The air that air blast 2 will be used to burn is sent into the burner hearth of air furnace main body 1, with the natural gas of sending into by burner and other combustible gases or oil, it also can be the heating surface in coal, bavin or other fuel mix burning back heating furnace, flue gas after the burning heat release is by changing the flue that logical valve 12 enters low-pressure steam generator 13, enter the flue of energy-saving water heater 5 again through the flue of air furnace rear pass preheater 11, enter chimney 6 through deduster 8, air-introduced machine 7.
Accompanying drawing 2 is air furnace main bodys 1 of example of the present utility model, the thermometer 17 of measuring hot air temperature is housed on the top cover plate 18, it below the upper cover plate air heat face 19, these heating surfaces are made up of the circular fin steel pipe of ratio-frequency welding, outer surface is zinc-plated so that anticorrosive and reinforcement heat transfer, be median septum 20 below, it below the median septum main furnace chamber 21, main furnace chamber 21 is rectangular, also can be foursquare, in be furnished with main heating surface 22 and auxilliary heating surface 23 by special air furnace burner hearth thermal design calculation method, main furnace chamber 21 bottoms are a slice wall with refractory lining, refracto 24, the bottom is furnished with burner 25 and ash bucket 27.Burner can dispose fire coal, combustion bavin type as required; Can also dispose gas type or fuel combustion type (the relatively large mechanical combustion apparatus that can also use similar plain cylindrical furnace is as the hydraulic injection facility of mechanically operated chain type fire grate, regular fuel boiler).Main furnace chamber 21 hermetically sealed designs so that adopt pressurized operation, improve combustion efficiency.Main heating surface is made up of steel pipe, and auxilliary heating surface is that the steel plate except that steel pipe is formed and welding or the heat transfer of contact steel pipe.Main heating surface steel pipe and ratio-frequency welding garden shape fin steel pipe UNICOM are designed to detachablely, to be easy to install and maintain, add an amount of liquid medicine in the steel pipe on demand, utilize heat pipe principle to conduct heat.Wall with refractory lining, refracto 24 1 sides are equipped with salable fire door 28; The bottom also is equipped with secondary wind inlet 26, so that it is combustion-supporting or directly change gas spray head to send into secondary wind, and immediately can natural gas fuel, coal gas or other fuel gas.Also be equipped with on the auxilliary heating surface 23 of main furnace chamber and see burner 29 so that observe stove internal combustion situation, auxilliary heating surface top, side is provided with main furnace chamber exhanst gas outlet 30, and smoke outlet also is equipped with the thermometer of measuring exhaust gas temperature.Outer organic frame 31 of main furnace chamber and heat-insulation layer.
Main furnace chamber structure and boiler structure differ widely, can not simply use the boiler heating power computational methods and carry out heating power calculating, this special air furnace burner hearth thermal design calculation method is to adopt special simulation, take all factors into consideration the each side influence, more additional coefficients, suppose earlier, press the method for physical device operating measurement data modification then, calculate with this heating power that can calculate of all sizes and different air furnace main furnace chamber, design, determine main furnace chamber volume and shape, and the reasonable Arrangement heating surface.
Calculate according to this special air furnace burner hearth thermal design calculation method, the area of the air heat face 19 of air furnace main body 1 must be greater than 6 divided by the area of main furnace chamber master heating surface 22, and the air heat face of air furnace main body 1 of the present utility model is according to this design data.
Air pressure on the median septum 20 of air furnace main body 1 is designed to greater than the main furnace chamber pressure under the median septum, so that guarantee air cleaning, is not subjected to flue gas to reveal the influence of polluting.
Low-pressure steam generator 13 is just installed when special requirement, the front is equipped with to be changed logical valve 12 and is connected with the gas approach of main furnace chamber exhanst gas outlet 30 with air furnace rear pass preheater 11 respectively, when needing steam, the hot flue gas that is come out by main furnace chamber exhanst gas outlet 30 leads to the flue that valve 12 enters low-pressure steam generator 13 by changing, logical through changing again after the heat transfer, 12 enter air furnace rear pass preheater 11.When not needing steam, only need to change logical valve 12 and just can make flue gas directly not enter the gas approach of air furnace rear pass preheater 11 by main furnace chamber exhanst gas outlet 30 by low-pressure steam generator 13.
Energy-saving water heater 5 mainly is to consider energy-conservationly, can utilize fume afterheat to produce hot water and be used to clean material or have a bath.
Frequency converter 3 is used to regulate circulating fan 9 and air blast 2 and air-introduced machine 7, control air capacity and temperature and adjusting burner hearth combustion position.
Safety device 4 is used for guaranteeing to run well, in order to avoid the main furnace chamber heating surface is burnt out by accident.
Should be understood that this embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

Claims (8)

1. combination type air furnace system, it includes air furnace main body (1), the air furnace main body is externally connected with chimney (16), the air furnace main body is connected with Drying tunnel (16) by air duct (10), be provided with circulating fan (9) between air duct and the air furnace main body, a side that it is characterized in that described air furnace main body outside is provided with frequency converter (3) and safety device (4), and the opposite side of described air furnace main body outside links to each other with low-pressure steam generator (13) by changing logical valve (12).
2. combination type air furnace system according to claim 1, it is characterized in that described air furnace main body (1) is by thermometer (17), top cover plate (18), air heat face (19), median septum (20), main furnace chamber (21) arranges successively that from top to bottom described air furnace lower body part is provided with burner (25) and ash bucket (27), and described air furnace main body outside is provided with support (31).
3. combination type air furnace system according to claim 2 is characterized in that described air heat face (19) forms described air heat face and main heating surface (22) steel pipe UNICOM by the circular fin steel pipe of the zinc-plated ratio-frequency welding of outer surface.
4. combination type air furnace system according to claim 2, what it is characterized in that described main furnace chamber (21) is shaped as rectangle or square, be furnished with main heating surface (22) and auxilliary heating surface (23) in the main furnace chamber, the main furnace chamber bottom is provided with a slice wall with refractory lining, refracto (24), described wall with refractory lining, refracto (24) one sides are equipped with salable fire door (28) and secondary wind inlet (26), also are equipped with on the auxilliary heating surface (23) and see burner (29).
5. combination type air furnace system according to claim 1, it is characterized in that being respectively equipped with energy-saving water heater (5) deduster (8) and air-introduced machine (7) between described air furnace main body and the chimney, also be provided with air blast (2) on the described air furnace main body.
6. combination type air furnace system according to claim 1 is characterized in that being respectively arranged with between described Drying tunnel and the air duct dehumidifier (15) and switching valve (14).
7. combination type air furnace system according to claim 1 is characterized in that described air furnace main body is provided with air furnace rear pass preheater (11).
8. combination type air furnace system according to claim 3, the ratio of area that it is characterized in that the area of the air heat face (19) in the described air furnace main body (1) and main heating surface (22) is greater than 6.
CN2011200784966U 2011-03-23 2011-03-23 Combined air furnace system Expired - Fee Related CN202018185U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200784966U CN202018185U (en) 2011-03-23 2011-03-23 Combined air furnace system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200784966U CN202018185U (en) 2011-03-23 2011-03-23 Combined air furnace system

Publications (1)

Publication Number Publication Date
CN202018185U true CN202018185U (en) 2011-10-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200784966U Expired - Fee Related CN202018185U (en) 2011-03-23 2011-03-23 Combined air furnace system

Country Status (1)

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CN (1) CN202018185U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927793A (en) * 2012-11-15 2013-02-13 桂林源林生态科技有限责任公司 Crop dryer
CN104075745A (en) * 2013-03-27 2014-10-01 上海赫特能源科技有限公司 Boiler combustion test furnace
CN104236281A (en) * 2014-09-11 2014-12-24 哈密市巧匠农机科技开发有限责任公司 Dry burning hot-air multilayer fruit air-drying device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927793A (en) * 2012-11-15 2013-02-13 桂林源林生态科技有限责任公司 Crop dryer
CN104075745A (en) * 2013-03-27 2014-10-01 上海赫特能源科技有限公司 Boiler combustion test furnace
CN104236281A (en) * 2014-09-11 2014-12-24 哈密市巧匠农机科技开发有限责任公司 Dry burning hot-air multilayer fruit air-drying device

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

Granted publication date: 20111026

Termination date: 20190323