CN116221978B - Electric integrated hot-blast stove - Google Patents
Electric integrated hot-blast stove Download PDFInfo
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- CN116221978B CN116221978B CN202310390882.6A CN202310390882A CN116221978B CN 116221978 B CN116221978 B CN 116221978B CN 202310390882 A CN202310390882 A CN 202310390882A CN 116221978 B CN116221978 B CN 116221978B
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- 238000010438 heat treatment Methods 0.000 claims abstract description 156
- 238000005485 electric heating Methods 0.000 claims abstract description 81
- 238000002485 combustion reaction Methods 0.000 claims abstract description 45
- 230000006698 induction Effects 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 43
- 239000002737 fuel gas Substances 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 11
- 239000003517 fume Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000001939 inductive effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0488—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1881—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Baking, Grill, Roasting (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The invention provides an electric integrated hot-blast stove which comprises an outer box body, wherein a box door is arranged on the front side of the outer box body, a control panel is arranged on one side of the box door on the outer box body, a stove body is arranged in the outer box body, a rear mounting plate is arranged on the rear side of the stove body, a top mounting plate and a bottom box are arranged on the front side end surface of the rear mounting plate, an air heating pipe group is arranged between the top mounting plate and the bottom box, a burner is arranged on one side of a heating pipe component, a combustion pipe in the burner transversely penetrates through the bottom box, an upper air induction component and a lower air induction component which are arranged side by side at intervals are respectively fixed on the rear mounting plate, the air induction component comprises a motor and fan blade discs, the fan blade discs are fixed on an output shaft of the motor and are positioned in front of the air heating pipe group, and annular electric heating pipes are arranged on the outer side of each fan blade disc. The electric integrated hot-blast stove realizes the integration between the gas heating and the power supply heating structure, improves the heating efficiency and the induced air efficiency, and can realize the switching of various baking modes.
Description
Technical Field
The invention relates to the technical field of food processing equipment, in particular to an electric integrated hot-blast stove.
Background
The hot blast stove is an important component of the baking oven for providing the heat energy required to bake the food item. The existing hot blast stove mainly comprises a gas hot blast stove taking gas combustion as a heating source and an electric heating air stove taking electric heat as the heating source. The gas hot-blast stove mainly adopts natural gas as fuel, has the characteristics of quick temperature rise and low energy consumption, does not need a high-power alternating current power supply, and mainly comprises a combustor and a heat exchange tube. In the prior art, the heat exchange tubes in the hot blast stove are generally U-shaped structures, and the lengths of the heat exchange tubes of the structures are shorter, so that the contact area between heat in the tubes and air in a baking box is smaller, the residence time of the heat in the heat exchange tubes is shorter, and the heat exchange rate is lower. The electric heating air furnace takes the electric heating pipes as a heating power supply, the electric heating pipe sets are distributed in parallel by adopting a plurality of electric heating pipes, hot air is conveyed into the furnace body through a fan after air is heated, the electric heating pipe sets distributed in a straight waterfall mode have high energy consumption during heating, particularly when high-temperature baking is needed, the electric heating pipe sets have high energy consumption, the hot air conveying efficiency is low, and the requirement of high-temperature baking is difficult to meet.
At present, hot blast stoves which are independently heated by electricity and gas are sold in the market. For example, chinese patent application publication No. CN102870836a discloses a hot blast stove for use in a food baking oven, comprising a baking oven, and a heat exchange tube and a fan installed in the baking oven, and also a burner installed outside; the heat exchange tube comprises a heating section, a heat dissipation section and a tail gas section, wherein the heating section is a straight tube, and one end of the heating section is communicated with an air inlet on the baking box; the heat dissipation section is an elbow, one end of the elbow is in transitional communication with the other end of the heating section, and the other end of the heat dissipation section is in transitional communication with one end of the tail gas pipe; the tail gas pipe is a bent pipe, and the other end of the tail gas pipe is communicated with the air outlet on the baking box; the nozzle of the burner is arranged in the heating section; the fan is arranged on the side wall of the baking box. The structure can improve the heat exchange rate of the heat exchange tube, and simultaneously, exhaust gas is discharged out of the baking box, so that the safety and the sanitation of food are ensured. However, the stove disclosed in this application has mainly the following drawbacks: (1) The heat exchange tube adopts a single tube structure, so that the temperature capable of heating is limited, and the heating requirement of the large hot blast stove cannot be met; (2) The flame generated by the burner is completely positioned in a single heat exchange tube, so that the heating efficiency of the burner and the heat energy utilization rate are low; (3) The structure can only meet the heating requirement of a small hot blast stove, and can not meet the heating and heat-leading requirements of a medium and large hot blast stove. Another example is: the Chinese patent application with publication number of CN210569840U discloses a novel high-efficiency electric heating air furnace, which comprises an electric heating air furnace main body, wherein a control panel is arranged on the outer surface of the front end of the electric heating air furnace main body, and heating wires are arranged on the inner surfaces of the two ends of the electric heating air furnace main body. The electric heating air furnace takes the electric heating pipe as a heating power supply, has higher energy consumption and is only suitable for low-temperature baking.
In the prior art, the applicant does not search for related reports of an electric integrated hot blast stove using a power supply and fuel gas as heat sources, and the main difficulty is that the traditional fuel gas heating induced air structure and the power supply heating induced air structure all need to occupy very big positions, and how to realize the fusion between the fuel gas heating induced air structure and the power supply heating induced air structure by reasonably arranging the fuel gas heating induced air structure and the power supply heating induced air structure, so that the occupied area of the fuel gas heating induced air structure and the occupied area of the power supply heating induced air structure are reduced, the heating efficiency and the induced air efficiency are improved, and the electric integrated hot blast stove is a technical problem which needs to be solved in the field urgently.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the electric integrated hot blast stove, which realizes the fusion between a fuel gas heating structure and a power supply heating structure, improves the heating efficiency and the induced air efficiency by sharing the same induced air component, and can realize the switching of a plurality of baking modes so as to meet the requirements of low-temperature baking, medium-temperature baking and high-temperature baking.
In order to achieve the technical scheme, the invention provides an electric integrated hot blast stove, which comprises an outer box body, wherein a box door is arranged on the front side of the outer box body, a control panel is arranged on one side of the box door on the outer box body, a stove body is arranged in the outer box body, a rear mounting plate is arranged on the rear side of the stove body, a heating pipe assembly is arranged on the rear mounting plate, the heating pipe assembly comprises a top mounting plate and a bottom box which are arranged on the rear mounting plate, an air heating pipe group is arranged between the top mounting plate and the bottom box, the air heating pipe group is arranged at the rear of the stove body, a burner is arranged on one side of the heating pipe assembly, a combustion pipe in the burner transversely penetrates through the bottom box, two air inducing assemblies which are arranged at intervals side by side are respectively fixed on the rear mounting plate, the air inducing assemblies comprise a motor and fan blade discs, the motor is transversely fixed on the rear mounting plate, the fan blade discs are fixed on an output shaft of the motor and are positioned in front of the air heating pipe group, an air outlet of the fan blade disc is communicated with the stove body, annular electric heating pipes are arranged on the outer sides of each fan blade disc, annular electric heating pipes are arranged on the outer sides of the fan blades, the annular electric heating pipe are arranged at the outer sides of the fan discs, the annular electric heating pipes are arranged at the outer sides of the fan blades, and the annular electric heating pipe are arranged at the outer side of the annular electric heating pipe, and extend to the outer side of the electric heating pipe.
In the technical scheme, when in actual work, the three baking modes of the electric integrated hot blast stove can be controlled to be switched through the control panel arranged on the outer box body. When the gas heating mode is started, the annular electric heating tube is closed, gas is combusted in a combustion tube of the combustor, flames generated in the combustion tube heat an air heating tube group arranged on the bottom box, peripheral air is heated through the air heating tube group, then the heated air is conveyed into the furnace body through two air induction components which are arranged side by side at intervals up and down, the air induction efficiency can be improved, the temperature difference between the upper part and the lower part in the furnace body is reduced, the temperature distribution in the furnace body is more uniform, and the mode is suitable for medium-temperature baking. When the electric heating mode is started, the burner is closed, the end part of the annular electric heating tube is electrified, the annular electric heating tube heats air around the fan blade disc, then the fan blade disc is driven by the motor to rotate at a high speed, the high-temperature air around the fan blade disc is adsorbed by the fan blade disc and then conveyed into the furnace body, and the annular electric heating tube is directly arranged outside the fan blade disc in a surrounding manner, so that the air around the fan blade disc can be intensively heated, then the high-temperature air is directly conveyed into the furnace body, the hot air conveying efficiency is greatly improved, and the mode is suitable for low-temperature baking. Compared with the traditional straight-fall type electric heating tube, the heat can be more concentrated, and hot air with higher temperature can be obtained under the same power, so that the effect of reducing energy consumption is achieved. When the mode of heating together by gas heating and electric heating is started, the end part of the annular electric heating tube is electrified, meanwhile, gas is combusted in the combustion tube of the combustor, the temperature of air heating can be further improved by matching the gas heating with the electric heating, and then high-temperature hot air is conveyed into the furnace body through the induced air component, so that the mode is suitable for high-temperature baking.
Preferably, the fan blade disc comprises a top disc and a bottom ring, a plurality of fan blades which are distributed in a circumferential array by taking the center of the top disc as the center of a circle are integrally arranged between the top disc and the bottom ring, each fan blade is bent in the same direction, and an air inlet channel is formed between every two adjacent fan blades. When the motor drives the top disc to rotate at a high speed in actual operation, when the top disc drives the fan blade to rotate, hot air outside the air channel is sucked into the air channel, and then whirlwind is formed and is intensively output into the furnace body from the center of the top disc, so that the efficiency of conveying the hot air can be improved.
Preferably, the center of the top disc is provided with a coupler, and the top disc is connected with an output shaft of the motor through the coupler, so that the fan blade disc and the motor can be conveniently and rapidly installed.
Preferably, the air heating pipe group is formed by a plurality of air heating pipes distributed in a matrix, the bottoms of the air heating pipes are fixed on the bottom box, the tops of the air heating pipes are fixed on the top mounting plate, the air heating pipes are hollow pipes, and bottom holes of the hollow air heating pipes are correspondingly arranged with flame transmission holes arranged on the combustion pipes in the burner. According to the structural design, a plurality of air heating pipes can be correspondingly heated by only one burner, so that the jet flame generated on the combustion pipe can be directly combusted in the corresponding air heating pipe, the direct internal heating of the air heating pipe is realized, the heating efficiency of the air heating pipe to the surrounding air can be improved, and the heat energy is improved.
Preferably, the outer box body is formed by enclosing an outer bottom plate, an outer left side plate, an outer right side plate, an outer rear side plate, an outer top plate and a box door frame, the box door is arranged on a box door frame, and food is conveniently taken and placed through opening and closing of the box door.
Preferably, a heat insulation plate is arranged between the outer rear side plate of the outer box body and a rear mounting plate arranged at the rear side of the furnace body, and the heat insulation plate can strengthen the protection of the motor and prevent the motor from overheating due to the generated high temperature.
Preferably, the burner comprises a mounting seat, the mounting seat is fixed on the side of end box, one end of combustion tube is fixed on the mounting seat, the other end of combustion tube is along transversely running through installing in end box, ignition needle and response needle are fixed on the mounting seat and are located the front and back both sides of combustion tube respectively and set up relatively, the gas collecting plate is installed to the relative department of ignition needle and response needle, the gas collecting plate front end is installed and is fixed on the combustion tube to the fire collecting plate, transversely be provided with a plurality of flame transmission holes of interval distribution side by side along on the fire collecting plate, the flame transmission hole is corresponding with the bottom hole of each air heating pipe in the air heating nest of tubes, the fan is connected with the combustion tube air inlet through the air inlet furnace end. When the air heating device is in actual work, fuel gas and air enter the combustion tube after being mixed in the air inlet furnace end, after the ignition needle ignites the fuel gas in the combustion tube at the air collecting plate, combustion flame is sprayed into bottom holes of all air heating tubes in the air heating tube group through flame transmission holes on the fire pressing plate, peripheral air is heated through the air heating tube group, and heated air is finally conveyed into the furnace body through the air inducing component to form hot air.
Preferably, the furnace body is enclosed by inner bottom plate, interior left side board, interior right side board, interior posterior lateral plate and interior roof and covers and form, the front side of furnace body is opened, the shelf is all installed to the interior left and right sides of furnace body, installs a plurality of shelves of side by side interval distribution from top to bottom on the shelf, makes things convenient for putting of food tray.
Preferably, the fume exhaust hood is arranged above the top mounting plate of the heating pipe assembly, so that the fume can be prevented from being contacted with food in the furnace body, and the heating pipe assembly is safe and sanitary.
The electric integrated hot blast stove provided by the invention has the beneficial effects that:
(1) The electric integrated hot blast stove has various modes and high degree of chemical only, and can select different modes according to actual baking conditions through the control panel. When the fuel gas heating mode is started, the annular electric heating tube is closed, fuel gas is combusted in a combustion tube of the combustor, flame generated in the combustion tube heats an air heating tube group arranged on the bottom box, peripheral air is heated through the air heating tube group, and then the heated air is conveyed into the furnace body through two air inducing assemblies which are arranged side by side at intervals up and down, so that the mode is suitable for medium-temperature baking. When the electric heating mode is started, the burner is closed, the end part of the annular electric heating tube is electrified, the annular electric heating tube heats the air around the fan blade disc, then the motor drives the fan blade disc to rotate at a high speed, and the high-temperature air around the fan blade disc is adsorbed by the fan blade disc and then conveyed into the furnace body, so that the mode is suitable for low-temperature baking. When the mode of heating together by gas heating and electric heating is started, the end part of the annular electric heating tube is electrified, meanwhile, gas is combusted in the combustion tube of the combustor, the temperature of air heating can be further improved by matching the gas heating with the electric heating, and then high-temperature hot air is conveyed into the furnace body through the induced air component, so that the mode is suitable for high-temperature baking. The user may employ different baking modes for the food characteristics in order to obtain better baking quality.
(2) This electric integrative hot-blast furnace sets up simply, reasonable in design, through the reasonable arrangement between to gas heating induced air structure and the power heating induced air structure to sharing the same induced air subassembly, realized the integration between gas heating induced air structure and the power heating induced air structure, reduce the area of gas heating induced air structure and power heating induced air structure, improve heating efficiency and induced air efficiency.
(3) This electric integrative hot-blast furnace adopts a combustor to cooperate the heating structure of the heating pipe subassembly of constituteing by a plurality of single heating pipes, can improve heating efficiency to cooperate two induced air subassemblies about, can improve induced air efficiency, reduce the difference in temperature of two parts about in the furnace body, make the temperature distribution in the furnace body more even.
(4) The electric heating induced draft structure of the hot blast stove is designed by the structural layout of the electric heating pipe, the annular electric heating pipe is directly wrapped on the outer side of the fan blade disc, so that the efficiency of hot blast conveying can be greatly improved, and the energy consumption is reduced. When the electric heating furnace works actually, the end part of the annular electric heating tube is electrified, the annular electric heating tube heats the air around the fan blade disc, then the motor drives the fan blade disc to rotate at a high speed, the high-temperature air around the fan blade disc is adsorbed by the fan blade disc and then conveyed into the furnace body, and the annular electric heating tube is directly wrapped and arranged on the outer side of the fan blade disc, so that the air around the fan blade disc can be intensively heated, and then the high-temperature air is directly conveyed into the furnace body, so that the efficiency of conveying hot air is greatly improved. Compared with the traditional straight-fall type electric heating tube, the heat can be more concentrated, and hot air with higher temperature can be obtained under the same power, so that the effect of reducing energy consumption is achieved.
Drawings
Fig. 1 is a front view of a three-dimensional structure of the present invention.
Fig. 2 is a rear view of the three-dimensional structure of the present invention.
Fig. 3 is an exploded front view of a three-dimensional structure according to the present invention.
Fig. 4 is an exploded rear view of a three-dimensional structure according to the present invention.
FIG. 5 is a front view of the mounting structure of the furnace body, the induced draft assembly, the burner and the heating tube assembly of the present invention.
FIG. 6 is a rear view of the mounting structure of the furnace body, the induced draft assembly, the burner and the heating tube assembly of the present invention.
FIG. 7 is an exploded view of a furnace body in a three-dimensional structure according to the present invention.
FIG. 8 is a schematic diagram I of the installation structure of the heating pipe assembly, the annular electric heating pipe, the induced air assembly and the furnace body.
FIG. 9 is a schematic view of the mounting structure of the heating tube assembly, annular electric heating tube and induced draft assembly of the present invention.
FIG. 10 is a schematic view II of the installation structure of the heating pipe assembly, the annular electric heating pipe, the induced draft assembly and the furnace body in the invention.
Fig. 11 is a schematic perspective view of a burner according to the present invention.
Fig. 12 is a front view of the mounting structure of the circular electric heating tube and the induced draft assembly of the present invention.
Fig. 13 is a rear view of the mounting structure of the circular electric heating tube and the induced draft assembly of the present invention.
In the figure: 1. an outer case; 11. an outer bottom plate; 12. an outer left side plate; 13. an outer right side plate; 14. an outer rear side plate; 15. an outer top plate; 16. a door frame; 17. a heat insulating plate; 18. a rear mounting plate; 2. a door; 3. a control panel; 4. a smoke exhaust hood; 5. an induced draft assembly; 51. a motor; 52. a fan blade disc; 521. a top plate; 522. a bottom ring; 523. a fan blade; 524. a coupling; 6. a furnace body; 61. an inner bottom plate; 62. an inner left side plate; 63. an inner right side plate; 64. an inner rear side plate; 65. an inner top plate; 66. a shelf; 67. a shelf; 7. a burner; 71. a blower; 72. an air inlet furnace end; 73. a combustion tube; 74. a mounting base; 75. an ignition needle; 76. a sensing needle; 77. a gas collecting plate; 78. a fire hold-down plate; 79. a flame transmitting hole; 8. a heating tube assembly; 81. a bottom box; 82. a top mounting plate; 83. an air heating tube group; 9. annular electrothermal tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
Examples: an electric integrated hot blast stove.
Referring to fig. 1 to 13, an electric integrated hot blast stove comprises: the outer box 1, outer box 1 is enclosed by outer bottom plate 11, outer left side board 12, outer right side board 13, outer posterior lateral plate 14, outer roof 15 and chamber door frame 16 and covers, and chamber door 2 installs on chamber door frame 16, and the convenience is put in getting food through opening and close of chamber door 2. A control panel 3 is arranged on one side of the outer box body 1, which is positioned on the box door 2, and the operation mode and parameters of the hot blast stove can be controlled through the control panel 3.
The utility model discloses a food tray, including outer box 1, inner bottom plate 61, inner left side board 62, inner right side board 63, inner rear side board 64 and interior roof 65 enclose and cover and form in the outer box 1, the front side of furnace body 6 is opened, and convenient food is got and is put, shelf 66 is all installed to the left and right sides in the furnace body 6, installs a plurality of shelves 67 of side by side interval distribution from top to bottom on the shelf 66, makes things convenient for putting of food tray. The heating pipe assembly 8 is installed to the rear side of furnace body 6, rear mounting panel 18 is installed at the rear of heating pipe assembly 8, install top mounting panel 82 and end box 81 that upper and lower side by side interval distributes on the front side terminal surface of rear mounting panel 18, install air heating nest of tubes 83 between top mounting panel 82 and the end box 81, air heating nest of tubes 83 is located the rear of furnace body 6, air heating nest of tubes 83 comprises many air heating pipes that are the matrix distribution, and air heating pipe's bottom is fixed on end box 81, and air heating pipe's top is fixed on top mounting panel 82, air heating pipe is the hollow tube, and hollow air heating pipe's bottom hole corresponds the setting with flame transmission hole 79 that sets up on the combustion tube 73 in the combustor 7. According to the structural design, a plurality of air heating pipes can be correspondingly heated by only one burner 7, so that the jet flame generated on the combustion pipe 73 can be directly combusted in the corresponding air heating pipe, the direct internal heating of the air heating pipe is realized, the heating efficiency of the air heating pipe on the surrounding air can be improved, and the heat energy is improved. The fume exhaust hood 4 is arranged above the top mounting plate 82 of the heating pipe assembly 8, and the fume generated by the combustion of the gas can be directly exhausted through the fume exhaust hood 4, so that the fume can be prevented from being contacted with food in the furnace body 6, and the furnace is safe and sanitary.
The burner 7 is arranged on one side of the heating pipe assembly 8, the combustion pipe 73 in the burner 7 is transversely and penetratingly arranged in the bottom box 81, the burner 7 comprises a mounting seat 74, the mounting seat 74 is fixed on the side end of the bottom box 81, one end of the combustion pipe 73 is fixed on the mounting seat 74, the other end of the combustion pipe 73 is transversely and penetratingly arranged in the bottom box 81, the ignition needle 75 and the induction needle 76 are fixed on the mounting seat 74 and are respectively arranged on the front side and the rear side of the combustion pipe 73 and are oppositely arranged, the gas collecting plate 77 is arranged at the opposite position of the ignition needle 75 and the induction needle 76, the fire pressing plate 78 is arranged at the front end of the gas collecting plate 77 and is fixed on the combustion pipe 73, a plurality of side by side spaced flame transmission holes 79 are transversely arranged on the fire pressing plate 78, the flame transmission holes 79 correspond to the bottom holes of the air heating pipes in the air heating pipe 83, and the blower 71 is connected with the gas inlet of the combustion pipe 73 through the gas inlet furnace end 72. In actual operation, the gas and air are mixed in the gas inlet furnace end 72 and then enter the combustion tube 73, the ignition needle 75 ignites the gas in the combustion tube 73 at the gas collecting plate 77, the combustion flame is sprayed into the bottom holes of each air heating tube in the air heating tube group 83 through the flame transmission holes 79 on the fire pressing plate 78, the surrounding air is heated through the air heating tube group 83, and the heated air is finally conveyed into the furnace body 6 through the air inducing component 5 to form hot air.
The induced air subassembly 5 includes motor 51 and fan blade dish 52, motor 51 is fixed on back mounting panel 18, is provided with heat insulating board 17 between the outer posterior lateral plate 14 of outer box 1 and the back mounting panel 18 of installing at furnace body 6 rear side, sets up heat insulating board 17 and can strengthen the protection to motor 51, prevents that motor 51 from overheated because of the high temperature that produces, fan blade dish 52 is fixed on the output shaft of motor 51 and is located the place ahead of air heating nest of tubes 83, and annular electrothermal tube 9 is all installed to the outside of every fan blade dish 52, annular electrothermal tube 9 and fan blade dish 52 concentric setting and parcel are in the outside of fan blade dish 52, the installation tip of annular electrothermal tube 9 extends to the outside of furnace body 6 to make things convenient for annular electrothermal tube 9 and external electrical apparatus to be connected. In actual operation, the end of the annular electric heating tube 9 is electrified, the annular electric heating tube 9 heats the air around the fan blade disc 52, then the motor 51 drives the fan blade disc 52 to rotate at high speed, the high-temperature air around the fan blade disc 52 is adsorbed by the fan blade disc 52 and then conveyed into the furnace body 6, and the annular electric heating tube 9 is directly wrapped and arranged outside the fan blade disc 52, so that the air around the fan blade disc 52 can be intensively heated, and then the high-temperature air is directly conveyed into the furnace body 6, so that the efficiency of conveying hot air is greatly improved. Compared with the traditional straight-fall type electric heating tube, the heat can be more concentrated, and hot air with higher temperature can be obtained under the same power, so that the effect of reducing energy consumption is achieved.
The fan blade disc 52 includes top disk 521 and bottom ring 522, be provided with a plurality of fan blades 523 that take top disk center as the centre of a circle to be circumference array distribution between the bottom ring 522 an organic whole, the center of top disk 521 is provided with shaft coupling 524, the output shaft of top disk 521 and motor 51 is connected through shaft coupling 524 to make things convenient for fan blade disc 52 and motor 51's quick installation, every fan blade 523 all buckles according to the same direction, form an air inlet wind channel between two adjacent fan blades 523, this kind of structural design, can be convenient for quick inwards adsorbing the peripheral high temperature air of fan blade disc 52 to outwards export high-speed hot-blast, compared with traditional ordinary fan, this fan blade disc 52 volume is littleer, hot-blast transportation's efficiency is higher, especially can cooperate annular electrothermal tube 9, adsorb the high temperature air that annular electrothermal tube 9 periphery produced fast and carry into furnace body 6, thereby further improve hot-blast transportation efficiency and holistic thermal efficiency. In actual operation, when the top plate 521 drives the fan blades 523 to rotate, hot air outside the air duct is sucked into the air duct, and then whirlwind is formed and concentrated to be output into the furnace body 6 from the center of the top plate 521, so that the efficiency of hot air conveying can be improved.
In this embodiment, the electric integrated hot blast stove can control the switching between three baking modes of the electric integrated hot blast stove through the control panel 3 installed on the outer box body 1. When the gas heating mode is started, the annular electric heating tube 9 is closed, gas is combusted in the combustion tube 73 of the combustor 7, flame generated in the combustion tube 73 heats the air heating tube group 83 arranged on the bottom box 81, peripheral air is heated through the air heating tube group 83, then the heated air is conveyed into the furnace body 6 through the two air induction assemblies 5 which are arranged side by side at intervals up and down, the air induction efficiency can be improved, the temperature difference between the upper part and the lower part in the furnace body is reduced, the temperature distribution in the furnace body 6 is more uniform, and the mode is suitable for medium-temperature baking. When the electric heating mode is started, the burner 7 is closed, the end part of the annular electric heating tube 9 is electrified, the annular electric heating tube 9 heats the air around the fan blade disc 52, then the motor 51 drives the fan blade disc 52 to rotate at a high speed, the high-temperature air around the fan blade disc 52 is adsorbed by the fan blade disc 52 and then conveyed into the furnace body 6, and the annular electric heating tube 9 is directly wrapped and arranged outside the fan blade disc 52, so that the air around the fan blade disc 52 can be intensively heated, and then the high-temperature air is directly conveyed into the furnace body 6, so that the hot air conveying efficiency is greatly improved, and the mode is suitable for low-temperature baking. Compared with the traditional straight-fall type electric heating tube, the heat can be more concentrated, and hot air with higher temperature can be obtained under the same power, so that the effect of reducing energy consumption is achieved. When the mode of heating by gas heating and electric heating is started, the end part of the annular electric heating tube 9 is electrified, meanwhile, the gas is combusted in the combustion tube 73 of the combustor 7, the temperature of air heating can be further increased by matching the gas heating with the electric heating, and then high-temperature hot air is conveyed into the furnace body 6 by the air induction component 5, so that the mode is suitable for high-temperature baking.
This electric integrative hot-blast furnace sets up simply, reasonable in design, through the reasonable arrangement between to gas heating induced air structure and the power heating induced air structure, has realized the integration between gas heating induced air structure and the power heating induced air structure to share the same induced air subassembly 5, reduced the area of gas heating induced air structure and power heating induced air structure, improved heating efficiency and induced air efficiency. This electric integrative hot-blast furnace adopts a combustor 7 to cooperate the heating structure of heating pipe assembly 8 that comprises a plurality of single heating pipes, can improve heating efficiency to cooperate two induced air subassembly 5 from top to bottom, can improve induced air efficiency, reduce the difference in temperature of upper and lower two parts in the furnace body 6, make the temperature distribution in the furnace body more even.
The electric heating induced draft structure of the hot blast stove is designed by the structural layout of the electric heating pipes, the annular electric heating pipes 9 are directly wrapped on the outer sides of the fan blade discs 52, so that the efficiency of hot blast conveying can be greatly improved, and the energy consumption is reduced. In actual operation, the end of the annular electric heating tube 9 is electrified, the annular electric heating tube 9 heats the air around the fan blade disc 52, then the motor 51 drives the fan blade disc 52 to rotate at high speed, the high-temperature air around the fan blade disc 52 is adsorbed by the fan blade disc 52 and then conveyed into the furnace body 6, and the annular electric heating tube 9 is directly wrapped and arranged outside the fan blade disc 52, so that the air around the fan blade disc 52 can be intensively heated, and then the high-temperature air is directly conveyed into the furnace body 6, so that the efficiency of conveying hot air is greatly improved. Compared with the traditional straight-fall type electric heating tube, the heat can be more concentrated, and hot air with higher temperature can be obtained under the same power, so that the effect of reducing energy consumption is achieved.
The electric heating induced air structure of the hot blast stove is strong in adaptability, different modes can be selected according to actual baking conditions, when a fuel gas heating mode is started, the annular electric heating tube 9 is closed, fuel gas burns in a combustion tube 73 of a combustor 7, flames generated in the combustion tube heat an air heating tube group 83 arranged on a bottom box 81, peripheral air is heated through the air heating tube group 83, and then heated air is conveyed into a stove body 6 through two induced air components 5 which are arranged side by side at intervals from top to bottom, and the mode is suitable for medium-temperature baking. When the electric heating mode is started, the burner 7 is closed, the end part of the annular electric heating tube 9 is electrified, the annular electric heating tube 9 heats the air around the fan blade disc 52, then the motor 51 drives the fan blade disc 52 to rotate at a high speed, and the high-temperature air around the fan blade disc 52 is adsorbed by the fan blade disc 52 and then conveyed into the furnace body 6, so that the mode is suitable for low-temperature baking. When the mode of heating by gas heating and electric heating is started, the end part of the annular electric heating tube 9 is electrified, meanwhile, the gas is combusted in the combustion tube 73 of the combustor 7, the temperature of air heating can be further increased by matching the gas heating with the electric heating, and then high-temperature hot air is conveyed into the furnace body 6 by the air induction component 5, so that the mode is suitable for high-temperature baking. In practice, the user may employ different baking modes for the food characteristics in order to obtain better baking quality.
The foregoing is a preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, so that the equivalents and modifications can be made without departing from the spirit of the disclosure.
Claims (7)
1. The utility model provides an electric integrative hot-blast furnace, includes the outer box, the front side of outer box is provided with the chamber door, installs control panel, its characterized in that in the one side that lies in the chamber door on the outer box: the outer box body is internally provided with a furnace body, the rear side of the furnace body is provided with a rear mounting plate, the rear mounting plate is provided with a heating pipe assembly, the heating pipe assembly comprises a top mounting plate and a bottom box which are arranged on the rear mounting plate, an air heating pipe group is arranged between the top mounting plate and the bottom box, the air heating pipe group is positioned at the rear of the furnace body, a burner is arranged at one side of the heating pipe assembly, a combustion pipe in the burner is transversely arranged in the bottom box in a penetrating manner, two air induction assemblies which are arranged side by side at intervals are respectively fixed on the rear mounting plate, the air induction assemblies comprise a motor and fan blade discs, the motor is transversely fixed on the rear mounting plate, the fan blade discs are fixed on an output shaft of the motor and are positioned in front of the air heating pipe group, an air outlet of each fan blade disc is communicated with the furnace body, an annular electric heating pipe group is arranged at the outer side of each fan blade disc, the annular electric heating pipe is concentric with the fan blade discs and is wrapped at the outer side of the fan blade discs, and the mounting end part of the annular electric heating pipe extends to the outer side of the furnace body; the fan blade disc comprises a top disc and a bottom ring, a plurality of fan blades which are distributed in a circumferential array by taking the center of the top disc as the center of a circle are integrally arranged between the top disc and the bottom ring, each fan blade is bent in the same direction, and an air inlet channel is formed between every two adjacent fan blades; the air heating pipe group comprises a plurality of air heating pipes which are distributed in a matrix, the bottoms of the air heating pipes are fixed on the bottom box, the tops of the air heating pipes are fixed on the top mounting plate, the air heating pipes are hollow pipes, and bottom holes of the hollow air heating pipes are correspondingly arranged with flame transmission holes arranged on the combustion pipes in the burner.
2. An electric integrated stove according to claim 1, wherein: the center of the top disc is provided with a coupler, and the top disc is connected with an output shaft of the motor through the coupler.
3. An electric integrated stove according to claim 1, wherein: the outer box body is formed by enclosing an outer bottom plate, an outer left side plate, an outer right side plate, an outer rear side plate, an outer top plate and a box door frame, and the box door is arranged on the box door frame.
4. An electric integrated stove according to claim 3, wherein: and a heat insulation plate is arranged between the outer rear side plate of the outer box body and a rear mounting plate arranged at the rear side of the furnace body.
5. An electric integrated stove according to claim 1, wherein: the burner comprises a mounting seat, the mounting seat is fixed on the side of end box, the one end of combustion tube is fixed on the mounting seat, the other end of combustion tube is along transversely running through and installing in end box, ignition needle and response needle are fixed on the mounting seat and are located the front and back both sides of combustion tube respectively and set up relatively, the gas collecting plate is installed to ignition needle and response needle's relative department, the gas collecting plate front end is installed and is fixed on the combustion tube, along transversely being provided with a plurality of flame transmission holes of interval distribution side by side on the gas collecting plate, the flame transmission hole is corresponding with the bottom hole of each air heating pipe in the air heating nest of tubes, the fan is connected with the combustion tube air inlet through the air inlet furnace end.
6. An electric integrated stove according to claim 1, wherein: the furnace body is enclosed by inner bottom plate, interior left side board, interior right side board, interior posterior lateral plate and interior roof and covers and form, the front side of furnace body is opened, the shelf is all installed to the interior left and right sides of furnace body, installs a plurality of shelves of side by side interval distribution from top to bottom on the shelf.
7. An electric integrated stove according to claim 1, wherein: a smoke exhaust hood is arranged above the top mounting plate of the heating pipe component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310390882.6A CN116221978B (en) | 2023-04-13 | 2023-04-13 | Electric integrated hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310390882.6A CN116221978B (en) | 2023-04-13 | 2023-04-13 | Electric integrated hot-blast stove |
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| CN116221978A CN116221978A (en) | 2023-06-06 |
| CN116221978B true CN116221978B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310390882.6A Active CN116221978B (en) | 2023-04-13 | 2023-04-13 | Electric integrated hot-blast stove |
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| EP3443133A1 (en) * | 2016-04-15 | 2019-02-20 | Andritz Technology and Asset Management GmbH | Method and furnace installation for heat treating metal strip |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201640276U (en) * | 2009-12-11 | 2010-11-24 | 徐建国 | Multipurpose gas baking oven |
| CN102191360A (en) * | 2011-05-12 | 2011-09-21 | 唐山金辉五金工具制造有限公司 | Combined temperature control quenching furnace |
| CN204032174U (en) * | 2014-06-14 | 2014-12-24 | 叶鸿煦 | A kind of multi-functional pneumoelectric mixing baking box |
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| CN205227320U (en) * | 2015-12-18 | 2016-05-11 | 广州伟格机械设备有限公司 | Combustor for oven |
| EP3443133A1 (en) * | 2016-04-15 | 2019-02-20 | Andritz Technology and Asset Management GmbH | Method and furnace installation for heat treating metal strip |
| CN108294071A (en) * | 2018-04-11 | 2018-07-20 | 青岛枫林食品机械有限公司 | Natural gas direct combustion type guipure baking machine |
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| Publication number | Publication date |
|---|---|
| CN116221978A (en) | 2023-06-06 |
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