CN110623015B - Frying pan - Google Patents
Frying pan Download PDFInfo
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- CN110623015B CN110623015B CN201910953213.9A CN201910953213A CN110623015B CN 110623015 B CN110623015 B CN 110623015B CN 201910953213 A CN201910953213 A CN 201910953213A CN 110623015 B CN110623015 B CN 110623015B
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- 230000005684 electric field Effects 0.000 claims abstract description 113
- 238000003860 storage Methods 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 21
- 235000013305 food Nutrition 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 239000006260 foam Substances 0.000 abstract description 29
- 238000013461 design Methods 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 50
- 235000019198 oils Nutrition 0.000 description 50
- 239000003549 soybean oil Substances 0.000 description 14
- 235000012424 soybean oil Nutrition 0.000 description 14
- 230000000694 effects Effects 0.000 description 13
- 235000012020 french fries Nutrition 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 7
- 235000013606 potato chips Nutrition 0.000 description 6
- 230000005672 electromagnetic field Effects 0.000 description 5
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- 238000012803 optimization experiment Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008157 edible vegetable oil Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
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- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B5/00—Baking apparatus for special goods; Other baking apparatus
- A21B5/08—Apparatus for baking in baking fat or oil, e.g. for making doughnuts
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Frying-Pans Or Fryers (AREA)
Abstract
The invention discloses a foam-reducing and splash-preventing device and a frying pan, which comprise a bearing part, wherein the bearing part comprises an oil storage assembly, a heating assembly and a rotary metal fence, the heating assembly is paved on the side surface and the bottom of the oil storage assembly, and the rotary metal fence is arranged on the side surface of the oil storage assembly; the first high-frequency pulse electric field generating component is arranged on two opposite side surfaces of the oil storage component; and the second high-frequency pulse electric field generating component has the same structure as the first high-frequency pulse electric field generating component and is hung on two side surfaces perpendicular to the first high-frequency pulse electric field generating component. The device selects a low-frequency high-frequency pulse electric field with a specific frequency range, sets reasonable emission polar plate layout, optimizes a frequency conversion program, achieves the purpose of foam reduction and splashing prevention, and additionally designs a special metal fence in the frying pan on the basis of the low-frequency high-frequency pulse electric field, so as to be used as a final guarantee measure for preventing high-temperature hot oil damage.
Description
Technical Field
The invention relates to the technical field of food processing equipment, in particular to a frying pan.
Background
The food fried by the high-temperature hot oil has the sensory characteristics of crisp and delicious taste, bright color, sharp aroma and the like, and is deeply favored by consumers. However, for personnel performing high temperature deep fat frying operations, such as those in restaurant shops, frying foam and high temperature fat have been a safety hazard, which can seriously threaten the physical health and personal safety of personnel.
The occupational exposure to frying foam fumes, du Houxiang et al (Du Houxiang, shao Hua. Occupational exposure to cooking fumes [ J ]. Occupational and health, 2008, 24 (15): 1571-1573.) the occupational exposure to foam fumes was analyzed throughout, and as a result, it was shown that foam fumes were extremely complex, with at least 300 of the constituents detected therefrom, mainly fatty acids, alkanes, alkenes, aldehydes, alcohols, esters, aromatic compounds, heterocyclic compounds, and the like, some of which, such as benzopyrene, heterocyclic amines, were carcinogenic, and increased the risk of respiratory illness and lung cancer incidence if exposed to foam fumes for prolonged periods of time.
For hot oil at high temperatures Yan Zhibin et al (Yan Zhibin, yuan Yinbao. Who is carelessly burned by hot oil [ J ]. Peasant company, 2010 (7): 38-38.) reported the event of severe injury to the human being due to hot oil in the frying pan. In addition, hot oil at high temperature splashes, which may cause serious fire if it contacts a flame.
Therefore, the development of the safe frying device for reducing foam and preventing splashing has extremely high practical value, and the existing measures can be summarized into the following categories that Guangdong Wanjia gas has a company (patent number: CN 105864836B) and controls the range hood through a kitchen range sensor to realize intelligent smoke control. However, the effect of the extractor hood is very limited for operators near the fryer, and a large amount of foam soot is still ingested by the human body.
Yin Jiazhen (patent number: CN 2292496) ensures that foam oil smoke is limited in a pot through a composite cover and is mixed with water vapor, and then is condensed into oil-water mixed liquid rapidly through convection with cold air flowing into the lower edge of the composite cover, and the oil-water mixed liquid enters a leakage cup, so that the oil smoke is not leaked in the cooking process, and the oil is not splashed outside the cover. However, the operation is very inconvenient in the operation of an actual restaurant in a mode of adding the pot cover, and the foam oil smoke blocked by the pot cover is seriously blocked in the pot by operators, so that misjudgment of the food fire is very easy to cause.
Deng Baifu (patent number: CN 103609753B), luoyang Chukui agriculture development Co., ltd. (patent number: CN 103815059B) and the like reduce the generation of foam oil smoke from the source by developing a specific formula blend oil. However, the frying oil with a specific formula has over-high selling price and can not meet the flavor requirements of various dishes in restaurants at present.
Disclosure of Invention
The present invention has been made in view of the above-mentioned technical problems.
In order to solve the technical problems, the invention provides the following technical scheme: the frying pan comprises a bearing part, wherein the bearing part comprises an oil storage component, a heating component and a rotary metal fence, the heating component is paved on the side surface and the bottom of the oil storage component, and the rotary metal fence is arranged on the side surface of the oil storage component; the first high-frequency pulse electric field generating component is arranged on two opposite side surfaces of the oil storage component; the second high-frequency pulse electric field generating component has the same structure as the first high-frequency pulse electric field generating component and is hung on two side surfaces of the oil storage component, which are perpendicular to the side surface provided with the first high-frequency pulse electric field generating component; the oil storage assembly is also provided with a supporting table, and the supporting table is provided with a connecting hole; the rotary metal fence comprises a mat-type net, a rotary shaft, a push-pull piece and a push rod motor, wherein the push-pull piece is connected with the push rod motor and the rotary shaft, the rotary shaft is arranged in the connecting hole, when high-temperature hot oil in the frying pan splashes too severely and loses control, the mat-type net is controlled to rotate upwards for frying foods with the water content higher than 40%, the mat-type net is controlled to rotate downwards for taking out the fried foods, and the mat-type net is controlled to rotate downwards for frying foods with the water content lower than 40%, so that the fried foods are pressed to the lower layer of the frying pan.
As a preferred embodiment of the fryer of the invention, wherein: the first high-frequency pulse electric field generating component comprises a first adjusting panel, a first high-frequency pulse electric field generator, a first high-frequency pulse electric field transmitting polar plate, a second high-frequency pulse electric field transmitting polar plate and a first transmission line, wherein the first transmission line is connected with the first high-frequency pulse electric field generator, the first high-frequency pulse electric field transmitting polar plate and the second high-frequency pulse electric field transmitting polar plate, the first adjusting panel is connected with the first high-frequency pulse electric field generator, and the first high-frequency pulse electric field transmitting polar plate and the second high-frequency pulse electric field transmitting polar plate are hung on two opposite side surfaces of the oil storage component through hanging devices.
As a preferred embodiment of the fryer of the invention, wherein: the heating assembly comprises a knob and a heating piece, the knob is arranged at the top of the oil storage assembly, and the heating piece is paved at the bottom of the oil storage assembly.
As a preferred embodiment of the fryer of the invention, wherein: the first high-frequency pulsed electric field generating part and the second high-frequency pulsed electric field generating part are operated in an intermittent alternating manner.
As a preferred embodiment of the fryer of the invention, wherein: the pulse frequency range is 25-35 kHz, the average electric field intensity is 100-360v/m, and the pulse width is 18-25 us.
As a preferred embodiment of the fryer of the invention, wherein: the oil storage component is provided with hooks on four walls, and the first high-frequency pulse electric field generating component and the second high-frequency pulse electric field generating component are hung on the hooks.
As a preferred embodiment of the fryer of the invention, wherein: the oil storage component is provided with a baffle near the bottom, and the heating element is arranged below the baffle.
As a preferred embodiment of the fryer of the invention, wherein: the suspension device is made of high-temperature-resistant polytetrafluoroethylene materials.
The beneficial effects of the invention are as follows: the low-frequency high-frequency pulse electric field with a specific frequency range is selected, the reasonable emitting polar plate layout is set, the frequency conversion program is optimized, the foam-reducing and splash-preventing purpose is achieved, and in addition, a special metal fence in the frying pan is additionally designed on the basis, so that the special metal fence is used as a final guarantee measure for preventing high-temperature hot oil damage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a fryer in accordance with the present invention.
Fig. 2 is a schematic structural view of a first high-frequency pulsed electric field generating part in the present invention.
Fig. 3 is an electrical schematic diagram of a high frequency pulsed electric field generator in accordance with the present invention.
FIG. 4 is a schematic view of the structure of the downstream assembly according to the present invention.
Fig. 5 is a schematic view of a rotary metal fence according to the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Embodiment 1 referring to fig. 1, a fryer according to a first embodiment of the present invention is provided, which comprises a carrier 100, a first high frequency pulse electric field generating part 200 and a second high frequency pulse electric field generating part 300, wherein the carrier 100 comprises an oil storage assembly 101, a heating assembly 102 and a rotary metal fence 103, the heating assembly 102 is laid on the side and bottom of the oil storage assembly 101, and the rotary metal fence 103 is arranged on the side of the oil storage assembly 101; the first high-frequency pulse electric field generating parts 200 are arranged on two opposite sides of the oil storage assembly 101; the second high-frequency pulse electric field generating member 300 has the same structure as the first high-frequency pulse electric field generating member 200, and is suspended from both sides of the oil reservoir assembly 101 perpendicular to the side where the first high-frequency pulse electric field generating member 200 is disposed.
In this embodiment, the oil storage assembly 101 is a main body of a frying pan, the user pours edible oil into the oil storage assembly 101, the edible oil is heated to a certain temperature by the heating assembly 102, food to be fried is placed on the rotary metal fence 103, and the degree of immersing the food to be fried in the oil is controlled by the rotary metal fence 103. The first high-frequency pulsed electric field generating part 200 and the second high-frequency pulsed electric field generating part 300 are provided for being equipped on the oil storage assembly 101 to limit foaming and hot oil splashing generated when frying food. The effectiveness of the device for both foam generation and hot oil splatter by frying has been demonstrated by the following comparative series of tests.
Details of several sets of implementations follow.
A first group: the high frequency pulsed electric field has a foam limiting effect.
Preparing materials: first-stage soybean oil: purchasing in supermarkets;
Potato chips: purchased in supermarkets, 40 x 7.2mm specification;
Frying pan: rated power 1800w, the length of the liner is 30cm, the width of the liner is 16cm, and the height of the liner is 15cm;
The experimental steps are as follows: french fries were fried using 3L of commercially available primary soybean oil, heated to 170℃and maintained at 170.+ -. 2 ℃. 300g of fries with equal size and quality are put into a pot for frying, and the maximum height of foam generated in the pot is measured.
Experimental results: when no electromagnetic field is applied, the maximum value of the foam is 5.5cm, and when the electromagnetic field is applied, the maximum value of the foam is 2.1cm, which shows that the high-frequency pulse electric field can obviously reduce the foam and prevent hot oil from splashing.
Second group: the high-frequency pulse electric field has water locking effect on food.
The hot oil splashing is caused by the fact that water in food enters oil to boil so as to splash the hot oil out of the pot, and the degree of splashing of the hot oil is difficult to directly measure and cannot be represented by data, so that the influence on the degree of splashing of the hot oil is indirectly measured by measuring the water locking capacity of a high-frequency pulse electric field on the food.
Preparing materials: first-stage soybean oil: purchasing in supermarkets;
deep-fried dough sticks: purchased in supermarkets, 50 x 6mm specification;
fish steak: purchased in supermarkets, 70X 60X 13mm specification;
Frying pan: the rated power is 1800w, and the length of the liner is 30cm, the width is 16cm, and the height is 15cm.
The experimental steps are as follows: 3L of commercially available primary soybean oil was used, heated to 170℃and maintained at 170.+ -. 2 ℃. Frying deep-fried dough sticks and fish fillets in a pot, and measuring the water content index according to the national standard GB/T14489.1.
Experimental results: the moisture content test results of the food after frying were as follows:
| Non-electromagnetic field conditions | With electromagnetic field conditions | |
| Fried twisted dough sticks having a moisture content of% | 20.11 | 21.71 |
| The water content of the fried fish steak is% | 47.74 | 49.93 |
Experimental results show that more water is reserved in the fried food in the presence of an electromagnetic field, and the electromagnetic field has the function of locking water for the fried food, so that the evaporation of the water is remarkably reduced, and the foam-reducing and splashing-preventing effects as described in the embodiment 1 are achieved.
In addition, the experiment finds that the application of two pairs of high-frequency pulse electric field emission polar plates in the experiment has unique effects, and the effects are relatively better than those of one pair or three pairs and four pairs, and the cost factor is considered, so that more than five pairs of comparison experiments are considered unnecessary.
The following are the specific cases of the experiment:
Preparing materials: first-stage soybean oil: purchasing in supermarkets;
Potato chips: purchased in supermarkets, 40 x 7.2mm specification;
Frying pan: rated power 1800w, the length of the liner is 30cm, the width of the liner is 16cm, and the height of the liner is 15cm;
The experimental steps are as follows: french fries were fried using 3L of commercially available primary soybean oil, heated to 170℃and maintained at 170.+ -. 2 ℃. 300g of fries with equal size and quality are put into a pot for frying, and the maximum height of foam generated in the pot is measured by changing a high-frequency pulse electric field emission program under a certain frequency.
Experimental results:
The results show that when the number of the polar plates is more, the foam inhibition effect is inferior to that of 2 pairs of polar plates, and it is considered that the high-frequency pulse electric field of 2 pairs of polar plates is enough to completely cover the interior of the frying pan, and the acting force of the alternating high-frequency pulse electric field on grease does not increase obviously with the number of more transmitting polar plates, and in addition, the equipment cost and the complexity of the device are considered, so that the selection of 2 pairs of transmitting polar plates is the result of repeated experimental optimization.
Embodiment 2 referring to fig. 2 to 3, this embodiment is a second embodiment of the present invention, which is based on the previous embodiment, except that the first high-frequency pulsed electric field generating part 200 includes a first adjusting panel 201, a first high-frequency pulsed electric field generator 202, a first high-frequency pulsed electric field transmitting plate 203, a second high-frequency pulsed electric field transmitting plate 204, and a first transmission line 205, the first transmission line 205 connects the first high-frequency pulsed electric field generator 202 and the first high-frequency pulsed electric field transmitting plate 203, the second high-frequency pulsed electric field transmitting plate 204, the first adjusting panel 201 is connected with the first high-frequency pulsed electric field generator 202, and the first high-frequency pulsed electric field transmitting plate 203 and the second high-frequency pulsed electric field transmitting plate 204 are suspended on two opposite sides of the oil storage assembly 101 by a suspension device 206. The suspension 206 is made of high temperature resistant polytetrafluoroethylene material.
In this embodiment, the first high-frequency pulsed electric field generating unit 200 further has its own power adapter, one end of which is connected to the mains supply, and one end of which is connected to the high-frequency pulsed electric field generator, and the power adapter adopts an isolated scheme to isolate the first adjusting panel 201, the first high-frequency pulsed electric field generator 202, the first high-frequency pulsed electric field transmitting electrode plate 203, the second high-frequency pulsed electric field transmitting electrode plate 204, and the first transmission line 205 from the mains supply. The first high-frequency pulse electric field generator 202 comprises an L-shaped conductive metal rectangular plate, a high-frequency current oscillator, a detector, a pair of sheet electrodes, an insulator material such as polystyrene, a magnet capable of generating magnetic force, a hexagonal through hole, a fuse wire and the like, and the specific principle is shown in the electrical schematic diagram of fig. 3. The high-frequency pulsed electric field emission polar plates are devices for emitting high-frequency pulsed electric fields outwards, and the first high-frequency pulsed electric field generation part 200 and the second high-frequency pulsed electric field generation part 300 share four high-frequency pulsed electric field emission polar plates which are respectively hung on the four walls of the frying pan at space positions and are arranged in a staggered mode. The suspension means 206 is a means for suspending the high frequency pulsed electric field emission plate inside the fryer, and the high frequency pulsed electric field emission plate has to be insulated from the metal pan surface, blocked by the high temperature resistant polytetrafluoroethylene material. The first transmission line 206 is a special cable for transmitting the high-frequency pulsed electric field generated by the generator to the transmitting electrode plate, and uses high-temperature resistant polytetrafluoroethylene material as an insulating layer, and connectors are arranged at two ends of the first transmission line, so that the first high-frequency pulsed electric field transmitting electrode plate 203, the second high-frequency pulsed electric field transmitting electrode plate 204 and the first high-frequency pulsed electric field generator 202 can be connected.
Embodiment 3 referring to fig. 1, a third embodiment of the present invention is based on the previous embodiment, except that the heating assembly 102 includes a knob 102a and a heating element 102b, the knob 102a is disposed on top of the oil storage assembly 101, and the heating element 102b is laid on the bottom of the oil storage assembly 101. The knob 102a is used for adjusting the power supply of the power supply to the heating element 102b, and then adjusting the oil temperature.
Example 4
The present embodiment is different from the previous embodiment in that the first high-frequency pulsed electric field generating section 200 and the second high-frequency pulsed electric field generating section 300 are operated in an intermittent alternating manner.
Specifically, the specific procedure of the high-frequency pulsed electric field emission polar plate is shown in the following table:
the beneficial effects of using this alternating program were verified by two sets of comparative experimental data:
Preparing materials: first-stage soybean oil: purchasing in supermarkets;
Potato chips: purchased in supermarkets, 40 x 7.2mm specification;
Frying pan: rated power 1800w, the length of the liner is 30cm, the width of the liner is 16cm, and the height of the liner is 15cm;
The experimental steps are as follows: french fries were fried using 3L of commercially available primary soybean oil, heated to 170℃and maintained at 170.+ -. 2 ℃. 300g of fries with equal size and quality are put into a pot for frying, and the maximum height of foam generated in the pot is measured by changing a high-frequency pulse electric field emission program under a certain frequency.
Experimental results:
Experimental results show that the device for executing the alternating high-frequency pulse electric field program has better foam-reducing and splash-preventing effects, and foam change results are similar when other foods except French fries are fried.
Example 5
This embodiment differs from the previous embodiment in that the fixed average electric field strength is 100-360v/m and the pulse width is 18-25 us, the frequency range of the suitable high frequency pulsed electric field is selected to be 5-55 kHz,
Experimental data show that the high-frequency pulse electric field in the low frequency range of 25-35 kHz has the best foam inhibition effect on fried foods. The experimental procedure was as follows:
Preparing materials: first-stage soybean oil: purchasing in supermarkets;
Potato chips: purchased in supermarkets, 40 x 7.2mm specification;
Frying pan: rated power 1800w, the length of the liner is 30cm, the width of the liner is 16cm, and the height of the liner is 15cm;
the experimental steps are as follows: french fries were fried using 3L of commercially available primary soybean oil, heated to 170℃and maintained at 170.+ -. 2 ℃. 300g of fries with equal size and quality are put into a pot for frying, and the maximum height of foam generated in the pot in each frequency range is measured.
Experimental results:
Experimental results show that the effect of pulse frequency selection on reducing the frying foam is very remarkable, the frequency range of 25-35 kHz is the result of an optimization experiment, and when other foods except for French fries are fried, the foam change result is similar.
Example 6
The present embodiment is different from the previous embodiment in that the frequency range of the high-frequency pulsed electric field at the time of stationary operation is 25 to 35kHz, the average electric field strength is 100 to 360v/m, and an appropriate pulse width is selected.
Experimental data shows that the pulse width of 18-25 us has the best foam inhibition effect on fried foods. The experimental procedure was as follows:
Preparing materials: first-stage soybean oil: purchasing in supermarkets;
Potato chips: purchased in supermarkets, 40 x 7.2mm specification;
Frying pan: rated power 1800w, the length of the liner is 30cm, the width of the liner is 16cm, and the height of the liner is 15cm;
The experimental steps are as follows: french fries were fried using 3L of commercially available primary soybean oil, heated to 170℃and maintained at 170.+ -. 2 ℃. 300g of fries of equal size and quality are placed in a pan for frying and the maximum height of the froth produced in the pan is measured for each pulse width.
Experimental results:
Experimental results show that the effect of pulse width selection on reducing the frying foam is very remarkable, the pulse width of 18-25 us is the result of an optimization experiment, and when other foods except for French fries are fried, the foam change result is similar.
Example 7
This embodiment is different from the previous embodiment in that the frequency range of the high-frequency pulsed electric field is 25 to 35kHz and the pulse width is 18 to 25us at the time of the fixed operation, in order to select an appropriate average electric field strength.
Experimental data indicate that the average electric field intensity of 100-360v/m has the best foam inhibition effect on fried foods. The experimental procedure was as follows:
Preparing materials: first-stage soybean oil: purchasing in supermarkets;
Potato chips: purchased in supermarkets, 40 x 7.2mm specification;
Frying pan: rated power 1800w, the length of the liner is 30cm, the width of the liner is 16cm, and the height of the liner is 15cm;
The experimental steps are as follows: french fries were fried using 3L of commercially available primary soybean oil, heated to 170℃and maintained at 170.+ -. 2 ℃. 300g of fries with equal size and quality are put into a pot for frying, and the maximum height of foam generated in the pot in each average electric field intensity is measured.
Experimental results:
Experimental results show that the selection of the average electric field strength has a very significant effect on reducing the frying foam, and that the selection of the average electric field strength of 100-360v/m is the result of an optimization experiment, and the foam change results are similar when other foods than French fries are fried.
Example 8
Referring to fig. 4 and 5, the present embodiment is different from the previous embodiment in that the oil reservoir assembly 101 is provided with hooks 101a on four walls thereof, and the first high-frequency pulse electric field generating part 200 and the second high-frequency pulse electric field generating part 300 are hung on the hooks 101 a. The oil storage assembly 101 is provided with a partition plate 101b near the bottom, and the heating element 102b is arranged below the partition plate 101 b. The oil storage assembly 101 is further provided with a supporting table 101c, and the supporting table 101c is provided with a connecting hole 101c-1. The rotary metal fence 103 includes a mat-type net 103a, a rotary shaft 103b, a push-pull member 103c and a push-rod motor 103d, the push-pull member 103c connects the push-rod motor 103d and the rotary shaft 103b, and the rotary shaft 103b is provided in the connection hole 101c-1.
In the present embodiment, the first high frequency pulse electric field generating part 200 and the second high frequency pulse electric field generating part 300 are connected with the oil storage assembly 101 through hooks, and are easily disassembled for cleaning, replacement, etc. A rotating metal fence 103, normally parallel to the bottom of the fryer, is positioned in the middle of the oil reservoir assembly 101, which is provided with a specific grid property as a mat. When the high-temperature hot oil in the frying pan splashes too severely and loses control, the metal fence is controlled to rotate. If the food is fried with high water content, the mat-type net 103a is controlled to rotate upwards, and the fried food is quickly taken out of the oil; if the food with low water content is, the mat-type net 103a is controlled to rotate downwards, the fried food is pressed to the lower layer of the oil pan, and the splashing of high-temperature liquid drops on the oil surface is reduced. When the moisture content of the food is higher than 40%, it is called high moisture food, otherwise, it is called low moisture food. The standard is custom and needs to be judged manually. The action of the mat-type net 103a is triggered by a push rod motor 103d, the push rod motor 103d is fixed on the side wall of the oil storage component 101, a hole is formed in the top end of a push rod of the push rod motor 103d, a shaft is arranged at the tail end of a push rod 103c and connected with the push rod motor through a shaft hole, the structure is arranged to enable the push rod motor 103d to be free from being blocked when the push rod motor 103d acts, a rotating shaft 103b is concretely limited by a connecting hole 101c-1, the axis position of the rotating shaft 103b is the rotating center line of the mat-type net 103a in overturning, when the push rod of the push rod motor 103d acts upwards, one end of the push rod 103c is driven to act upwards, and the opposite mat-type net 103a overturns downwards, so that the mat-type net 103a is controlled according to the principle. The oil storage assembly 101 is provided with two buttons for controlling the push rod motor 103d, and thus indirectly controlling the mat-type net 103a to turn over.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (8)
1. A fryer, characterized by: comprising the steps of (a) a step of,
The bearing component (100) comprises an oil storage component (101), a heating component (102) and a rotary metal fence (103), wherein the heating component (102) is paved on the side surface and the bottom of the oil storage component (101), and the rotary metal fence (103) is arranged on the side surface of the oil storage component (101);
the first high-frequency pulse electric field generating component (200), the first high-frequency pulse electric field generating component (200) is arranged on two opposite sides of the oil storage component (101);
the second high-frequency pulse electric field generating component (300), the structure of the second high-frequency pulse electric field generating component (300) is the same as that of the first high-frequency pulse electric field generating component (200), and the second high-frequency pulse electric field generating component is hung on two side surfaces of the oil storage assembly (101) which are perpendicular to the side surfaces provided with the first high-frequency pulse electric field generating component (200);
a supporting table (101 c) is further arranged on the oil storage component (101), and a connecting hole (101 c-1) is formed in the supporting table (101 c);
The rotary metal fence (103) comprises a mat-type net (103 a), a rotary shaft (103 b), a push-pull piece (103 c) and a push rod motor (103 d), wherein the push-pull piece (103 c) is connected with the push rod motor (103 d) and the rotary shaft (103 b), the rotary shaft (103 b) is arranged in a connecting hole (101 c-1), when high-temperature hot oil inside the frying pan splashes too severely and loses control, the mat-type net (103 a) is controlled to rotate upwards for frying foods with water content higher than 40%, the frying foods are taken out, the mat-type net (103 a) is controlled to rotate downwards for frying foods with low water content lower than 40%, and the frying foods are pressed to the lower layer of the frying pan.
2. The fryer of claim 1 wherein: the first high-frequency pulse electric field generating component (200) comprises a first adjusting panel (201), a first high-frequency pulse electric field generator (202), a first high-frequency pulse electric field transmitting pole plate (203), a second high-frequency pulse electric field transmitting pole plate (204) and a first transmission line (205), the first transmission line (205) is connected with the first high-frequency pulse electric field generator (202) and the first high-frequency pulse electric field transmitting pole plate (203) and the second high-frequency pulse electric field transmitting pole plate (204), the first adjusting panel (201) is connected with the first high-frequency pulse electric field generator (202), and the first high-frequency pulse electric field transmitting pole plate (203) and the second high-frequency pulse electric field transmitting pole plate (204) are suspended on two opposite sides of the oil storage component (101) through a suspension device (206).
3. The fryer of claim 2 wherein: the heating assembly (102) comprises a knob (102 a) and a heating element (102 b), the knob (102 a) is arranged at the top of the oil storage assembly (101), and the heating element (102 b) is paved at the bottom of the oil storage assembly (101).
4. A fryer according to claim 3, wherein: the first high-frequency pulsed electric field generating part (200) and the second high-frequency pulsed electric field generating part (300) are operated in an intermittent alternating manner.
5. The fryer of claim 4 wherein: the pulse frequency range is 25-35 kHz, the average electric field intensity is 100-360v/m, and the pulse width is 18-25 us.
6. The fryer of claim 5 wherein: the oil storage assembly (101) is provided with hooks (101 a) on four walls, and the first high-frequency pulse electric field generating component (200) and the second high-frequency pulse electric field generating component (300) are hung on the hooks (101 a).
7. The fryer of claim 6 wherein: the oil storage assembly (101) is provided with a partition plate (101 b) near the bottom, and the heating element (102 b) is arranged below the partition plate (101 b).
8. The fryer of claim 7 wherein: the suspension device (206) is made of high-temperature-resistant polytetrafluoroethylene materials.
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| US20230172225A1 (en) * | 2020-03-23 | 2023-06-08 | Yoko Mori | Apparatus for producing non-splatter cooking oil |
| CN114557419B (en) * | 2022-03-09 | 2022-12-27 | 江南大学 | Method for reducing acrylamide and polycyclic aromatic hydrocarbon in frying based on medium-intensity electric field treatment |
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| CN206324680U (en) * | 2016-08-19 | 2017-07-14 | 山东鲜道食品科技有限公司 | A kind of portable deep fryer of utilization intermittent oscillation electric field |
| CN211091560U (en) * | 2019-10-09 | 2020-07-28 | 江南大学 | Foam-reducing anti-splashing device and frying pan |
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| CN2297848Y (en) * | 1997-04-15 | 1998-11-25 | 金星 | Electric field stimulation instrument for fish embryonic development |
| CN101564197B (en) * | 2009-03-18 | 2011-01-26 | 昆明理工大学 | Pulse electric field device for drying and dehydration pretreatment of fruits and vegetables |
| CN104323406B (en) * | 2014-09-30 | 2016-01-20 | 李想 | The fruits and vegetables permeating and dewatering device and method of intensified by ultrasonic wave high-pressure pulse electric |
| KR101652023B1 (en) * | 2015-09-04 | 2016-08-29 | 범일산업 주식회사 | Induction fryer using a high voltage |
| CN206137025U (en) * | 2016-08-30 | 2017-05-03 | 浙江百晓生厨房设备有限公司 | Profit mixes deep -fry machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206324680U (en) * | 2016-08-19 | 2017-07-14 | 山东鲜道食品科技有限公司 | A kind of portable deep fryer of utilization intermittent oscillation electric field |
| CN211091560U (en) * | 2019-10-09 | 2020-07-28 | 江南大学 | Foam-reducing anti-splashing device and frying pan |
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