CN108378717B - Electric crusty pancake pit capable of naturally circulating hot air - Google Patents
Electric crusty pancake pit capable of naturally circulating hot air Download PDFInfo
- Publication number
- CN108378717B CN108378717B CN201810059246.4A CN201810059246A CN108378717B CN 108378717 B CN108378717 B CN 108378717B CN 201810059246 A CN201810059246 A CN 201810059246A CN 108378717 B CN108378717 B CN 108378717B
- Authority
- CN
- China
- Prior art keywords
- pipe section
- crusty pancake
- air
- straight pipe
- hot air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 235000012771 pancakes Nutrition 0.000 title claims abstract description 63
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000004321 preservation Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000011229 interlayer Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 14
- 239000010410 layer Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0664—Accessories
Abstract
The utility model provides an electric crusty pancake hole of natural circulation hot air, includes crusty pancake hole body, air intermediate layer, heat preservation, heating element, current limiting plate, temperature measuring device, temperature control device, gas collecting channel, crusty pancake hole wall, straight pipe section, curved pipe section, air current disperser, guide plate etc. the vacuum zone that straight pipe section inside formed provides the driving force for the natural circulation of hot air, has fully retrieved the hot air through the water conservancy diversion effect of current limiting plate, has effectively improved crusty pancake hole's thermal efficiency.
Description
Technical Field
The invention relates to an electric crusty pancake pit, in particular to an electric crusty pancake pit capable of naturally circulating hot air.
Background
The crusty pancake is a baked pancake, and is one of staple foods indispensable in the minority lives of Uygur nationality, kazak nationality and the like. The traditional crusty pancake pit is an integral structure made by clay, and coal is generally used as fuel when crusty pancake is fired. In the combustion process of fossil fuels such as coal and the like, a large amount of pollutants such as nitrogen oxides, sulfur oxides and the like which pollute the atmosphere are easy to generate, the nitrogen oxides and the sulfur oxides are not only one of main substances for forming acid rain, but also important factors for forming haze, and particularly the traditional crusty pancake pit does not have any smoke treatment measures in the coal burning process, so that the pollution to the atmosphere is extremely large. In recent years, with the increasing of environmental protection, the electric crusty pancake pit technology gradually steps into the market.
The electric crusty pancake pit with clean energy and electric energy as heat sources solves the problem of most traditional crusty pancake pits, but the heating element of the electric crusty pancake pit in the prior art is arranged at the center of the bottom of the crusty pancake pit, air is heated and gradually rises in the crusty pancake baking process, crusty pancake baking is performed after convection heat exchange with the crusty pancake on the wall surface, most of hot air after heat exchange vertically rises along the center of the crusty pancake pit and is discharged to the atmosphere, the heat obtained by the inner wall of the crusty pancake pit is very limited, most of the heat is dissipated to the external environment along with the hot air, and the energy is not reasonably utilized.
Disclosure of Invention
In order to solve the problems existing in the prior art, the invention aims to: the electric crusty pancake pit with the natural circulation of hot air can realize the natural circulation utilization of air in the crusty pancake pit, greatly reduce the energy consumption and effectively improve the working efficiency of the crusty pancake pit.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the invention provides an electric crusty pancake pit capable of naturally circulating hot air, which comprises a crusty pancake pit body 1, an air interlayer 2, an insulating layer 3, a heating element 4, a current limiting plate 5, a temperature measuring device 6, a temperature control device 7, a gas collecting pipeline 8, a straight pipe section 9, a bent pipe section 10, a straight pipe insulating layer 11, an air flow disperser 12, a guide plate 13 and the like. The crusty pancake pit body 1 is made of ceramic or steel plates; the heat preservation layer 3 and the heat preservation layer 11 of the straight pipe section are made of asbestos materials.
The outer side of the crusty pancake pit body 1 is provided with a plurality of air interlayers 2, the outer side of the air interlayers 2 is provided with a heat preservation layer 3, the current limiting plate 5 is welded on the heat preservation layer 3, the included angle between the current limiting plate 5 and the vertical direction is 25 degrees, hot air enters the air interlayers 2 through the guiding of the current limiting plate 5 in the rising process, the bottom of the air interlayers 2 is provided with a gas collecting pipeline 8, and after flowing through the air interlayers 2, the hot air is converged to the gas collecting pipeline 8 at the bottom of the air interlayers 2; the gas collecting pipeline 8 is arranged at the bottom of the crusty pancake pit near the inner wall surface of the crusty pancake pit body 1. The air flow disperser 12 is of a cambered surface fan-shaped structure with a hollow inside, is integrally nested at the upper part of the straight pipe section 9, and a plurality of guide plates 13 are arranged in the air flow disperser 12 to divide the inner space of the air flow disperser into a plurality of areas.
The gas collecting pipeline 8 is formed by welding a straight pipe section 9 and a bent pipe section 10, the included angle of the welding joint of the straight pipe section 9 and the bent pipe section 10 is 80 degrees, and the included angle of the straight pipe section 9 and the vertical direction is 10 degrees.
The air flow disperser 12 is arranged at 30 deg. to the vertical.
And a straight pipe section heat insulation material 11 is arranged outside the straight pipe section 9.
The heating element 4 is made of resistance wire material, and the heating element 4 is arranged in the middle of the straight pipe section 9.
The temperature measuring device 6 is arranged by opening holes above, in the middle and below the wall body of the crusty pancake pit body 1.
The temperature measuring device 6 and the heating element 4 are connected to a temperature control device 7.
Compared with the prior art, the invention has the following advantages.
1. According to the electric crusty pancake pit capable of naturally circulating hot air, in the process of baking crusty pancake, the heating element 4 is used for heating air in the straight pipe section 9, the density of the heated air is reduced and the heated air flows upwards, so that a local vacuum area is formed, and under the action of pressure difference, the hot air with lower bottom temperature gradually rises, so that the air in the crusty pancake pit is naturally circulated; the gas collecting pipeline 8 and the airflow disperser 12 are arranged along the wall surface, so that the whole hot air can uniformly flow along the wall, and the heat exchange process between the hot air and the crusty pancake is effectively enhanced.
2. In the process of rising of the wall of the heated air subjected to convection heat exchange, most of the heated air subjected to convection heat exchange can be recycled and utilized to enter the air interlayer 2 through the guiding effect of the flow limiting plate 5, and the flow of the heated air in the air interlayer can improve the temperature of the crusty pancake pit body 1, reduce the preheating time of the crusty pancake pit and effectively reduce the heat exchange between the crusty pancake pit body and the outside due to the lower heat conductivity coefficient of the air.
Drawings
FIG. 1 is a schematic diagram of an electric naan pit system for naturally circulating hot air according to the present invention.
Fig. 2 is a schematic view of the gas flow disperser 12.
In the figure, a 1-crusty pancake pit body, a 2-air interlayer, a 3-heat preservation layer, a 4-heating wire, a 5-current limiting plate, a 6-temperature measuring device, a 7-temperature control device, an 8-gas collecting pipeline, a 9-straight pipe section, a 10-bent pipe section, a 11-straight pipe section heat preservation layer, a 12-gas flow disperser and a 13-guide plate are arranged.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Referring to fig. 1, the electric crusty pancake pit for naturally circulating hot air comprises a crusty pancake pit body 1, an air interlayer 2, an insulation layer 3, a heating element 4, a current limiting plate 5, a temperature measuring device 6, a temperature control device 7, a gas collecting pipeline 8, a straight pipe section 9, a bent pipe section 10, a straight pipe insulation layer 11, an air flow disperser 12 and a current guiding plate 13.
The outer side of the crusty pancake pit body 1 is provided with a plurality of air interlayers 2, the outer layer of each air interlayer 2 is provided with an insulation layer 3, the current limiting plate 5 is welded on the insulation layer 3, and the included angle between the current limiting plate 5 and the vertical direction is 45 degrees. In the process of flowing along the wall surface, hot air enters the air interlayer 2 under the action of the flow limiting plate 5, the density of the hot air is reduced due to the lower temperature of the heat preservation layer 3, the hot air gradually flows to the bottom along the air interlayer, the bottom of the air interlayer 2 is provided with the gas collecting pipeline 8, and the gas collecting pipeline 8 is close to the inner wall surface of the crusty pancake pit body 1 and is arranged at the bottom of the crusty pancake pit.
The gas collecting pipeline 8 is formed by welding a straight pipe section 9 and a bent pipe section 10, an included angle at a welding joint of the straight pipe section 9 and the bent pipe section 10 is 80 degrees, an included angle between the straight pipe section 9 and the vertical direction is 10 degrees, and the heating element 4 is arranged in the middle of the straight pipe section 9. Because the hot air in the air interlayer 2 and the heat preservation have partial heat exchange, the temperature in the air interlayer 2 is lower relative to the temperature in the naan pit body 1, the heated hot air of the heating element 4 is easy to flow back into the air interlayer 2, and the gas collecting pipeline 8 is formed by the welding structure of the straight pipe section 9 and the bent pipe section 10 and the arrangement mode of the heating element 4 in the middle of the straight pipe section 9, so that the problems can be effectively avoided.
After the air in the middle section inside the straight pipe section 9 is heated by the heating element 4, as the density of the air is reduced and moves upwards, a vacuum area is formed at the position of the middle section inside the straight pipe section 9, the air at the bottom of the straight pipe section 9 is forced to move upwards, the pressure difference generated by the upper and lower parts of the vacuum area is the driving force of natural circulation of the hot air in the crusty pancake pit, the higher the power of the heating element 4 is, the higher the temperature of the heated hot air is, the higher the rising speed of the air is, and correspondingly, the larger driving force can be generated; the air deflector 13 inside the air disperser 12 distributes the hot air rising from the straight pipe section 9 evenly, meanwhile, the hot air can flow upwards along the whole and even wall surface by the arrangement mode of the straight pipe section 9 and the air disperser 12 along the wall surface, compared with the mode that the hot air flows in the center of the crusty pancake pit body in the prior art, the efficiency of convection heat exchange is greatly enhanced, and meanwhile, the hot air clings to the wall surface in the flowing mode, so that the hot air can be easily recycled under the action of the flow limiting plate 5.
The upper part, the middle part and the lower part of the wall body of the crusty pancake pit body 1 are provided with holes, and a temperature measuring device 6 is arranged; the temperature measuring device 6 and the heating element 4 are connected to a temperature control device 7. In the process of baking the crusty pancake, the temperature inside the crusty pancake pit is measured through the temperature measuring device 6. When the temperature inside the crusty pancake pit is lower than the temperature of the crusty pancake, the temperature measuring device 6 feeds back signals to the temperature control device 7, the temperature control device 7 can increase the power of the heating element 4, on one hand, the temperature of hot air can be increased, on the other hand, the driving force of hot air circulation can be increased, so that the convection heat exchange amount is increased, and when the temperature inside the crusty pancake pit is higher than the temperature of the crusty pancake, the power of the heating element 4 is reduced through the temperature control device 7, so that the temperature inside the crusty pancake pit is ensured to be at a proper temperature.
Claims (2)
1. The utility model provides an electricity crusty pancake hole of natural circulation hot air, includes crusty pancake hole body (1), air intermediate layer (2), heat preservation (3), heating element (4), current limiting plate (5), temperature measuring device (6), temperature control device (7), gas collecting pipe (8), straight pipe section (9), curved pipe section (10), straight section pipe heat preservation (11), air disperser (12), guide plate (13), a plurality of air intermediate layers (2) are arranged in crusty pancake hole body (1) outside, current limiting plate (5) welding is on heat preservation (3), and the bottom of air intermediate layer (2) is connected to gas collecting pipe (8), and gas collecting pipe (8) are close to the internal face of crusty pancake hole body (1) and arrange in crusty pancake hole bottom, and air disperser (12) nest are in the upper end of straight pipe section (9), and the internal face of crusty pancake hole body (1) is arranged, gas collecting pipe (8) are formed by straight pipe section (9) and curved pipe section (10) welding, straight pipe section (9) and the joint department of curved pipe section (10) is that straight pipe section (9) and straight pipe section (10) are the contained angle, the contained angle is the contained angle of vertical section (10) is arranged at straight pipe section (9) heat preservation (4).
2. The electric crusty pancake pit with natural circulation of hot air according to claim 1, characterized in that the air flow disperser (12) is nested at the upper end of the straight pipe section (9), a plurality of guide plates (13) are arranged in the air flow disperser (12), and the whole air flow disperser (12) is arranged at 30 degrees with the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059246.4A CN108378717B (en) | 2018-01-22 | 2018-01-22 | Electric crusty pancake pit capable of naturally circulating hot air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059246.4A CN108378717B (en) | 2018-01-22 | 2018-01-22 | Electric crusty pancake pit capable of naturally circulating hot air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108378717A CN108378717A (en) | 2018-08-10 |
| CN108378717B true CN108378717B (en) | 2024-01-30 |
Family
ID=63076088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810059246.4A Active CN108378717B (en) | 2018-01-22 | 2018-01-22 | Electric crusty pancake pit capable of naturally circulating hot air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108378717B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6965095B1 (en) * | 2004-09-20 | 2005-11-15 | Ronco Inventions, Llc | Rotisserie oven having horizontally and vertically oriented cooking elements |
| CN2861792Y (en) * | 2005-11-21 | 2007-01-24 | 阿不都艾海提 | Environment-friendly type smokeless pit |
| CN205729134U (en) * | 2016-05-06 | 2016-11-30 | 国网河南永城市供电公司 | A kind of intelligence pit machine |
| CN206165623U (en) * | 2016-10-28 | 2017-05-17 | 新疆轻工职业技术学院 | Two roast crusty pancake holes of hot type that add of coal power |
| CN107280506A (en) * | 2017-07-27 | 2017-10-24 | 巴依拉吉·帕夏 | New energy pit |
| CN107319954A (en) * | 2017-07-27 | 2017-11-07 | 巴依拉吉·帕夏 | Electric heating intelligence pit |
| CN208864108U (en) * | 2018-01-22 | 2019-05-17 | 新疆大学 | A kind of novel electric pit |
-
2018
- 2018-01-22 CN CN201810059246.4A patent/CN108378717B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6965095B1 (en) * | 2004-09-20 | 2005-11-15 | Ronco Inventions, Llc | Rotisserie oven having horizontally and vertically oriented cooking elements |
| CN2861792Y (en) * | 2005-11-21 | 2007-01-24 | 阿不都艾海提 | Environment-friendly type smokeless pit |
| CN205729134U (en) * | 2016-05-06 | 2016-11-30 | 国网河南永城市供电公司 | A kind of intelligence pit machine |
| CN206165623U (en) * | 2016-10-28 | 2017-05-17 | 新疆轻工职业技术学院 | Two roast crusty pancake holes of hot type that add of coal power |
| CN107280506A (en) * | 2017-07-27 | 2017-10-24 | 巴依拉吉·帕夏 | New energy pit |
| CN107319954A (en) * | 2017-07-27 | 2017-11-07 | 巴依拉吉·帕夏 | Electric heating intelligence pit |
| CN208864108U (en) * | 2018-01-22 | 2019-05-17 | 新疆大学 | A kind of novel electric pit |
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| Publication number | Publication date |
|---|---|
| CN108378717A (en) | 2018-08-10 |
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