CN103211485A - Cooking pot - Google Patents
Cooking pot Download PDFInfo
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- CN103211485A CN103211485A CN2013101667696A CN201310166769A CN103211485A CN 103211485 A CN103211485 A CN 103211485A CN 2013101667696 A CN2013101667696 A CN 2013101667696A CN 201310166769 A CN201310166769 A CN 201310166769A CN 103211485 A CN103211485 A CN 103211485A
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- pot
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- headspace
- outer pot
- exothermic mixture
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Abstract
The invention discloses a cooking pot. The cooking pot comprises an inner pot and an outer port which are arranged from inside to outside in a sleeving and overlapping manner; the upper part of the inner pot is in sealing combination with the upper part of the outer pot; a reaction area is formed in a space between the external wall of the inner pot and the internal wall of the outer pot; a preset space with a specified height is formed between the outer side of the bottom surface of the inner pot and the inner side of the bottom surface of the outer pot; and a seasoning packet which can expand to reach the outer side of the bottom surface of the inner pot is placed into the preset space. The cooking pot has the characteristics of being high in heat transfer efficiency, high in effective volume ratio respecting to foods, and high in completeness of reaction of an exothermal agent, and has a very wide application prospect.
Description
Technical field
The present invention relates to a kind of cooking apparatus, relate in particular to a kind of pot that utilizes exothermic mixture directly to carry out food cooking as the culinary art thermal source.
Background technology
In the cooking process of food, normally utilize medium (as, water) and vessel itself in the vessel (as, pot) of food container to conduct heat, thus the purpose that realization is heated, cooked food.At present, the thermal source that adopts often of culinary art be combustion gas with.But electric spark or naked light there be in the environment of prohibiting (as outdoor environments such as operating mode such as mine and forests), are adopting electricity or the combustion gas then may be explosion caused as the cooking apparatus of culinary art thermal source and major disaster such as fire, causing the damage of personnel and property big.In addition, under the situation that can't obtain electricity or combustion gas, it is very difficult that cooking food will become.
Nowadays, a kind of employing chemical energy is arranged as the culinary art thermal source in the existing cooking apparatus.Its working method is to place vessel (abbreviating outer pot as) that hold exothermic mixture outside the vessel (abbreviating interior pot as) of food container.Utilize the heat that discharges in the water generates chemical reaction process in exothermic mixture and the outer pot as the thermal source of cooking.Though existing employing chemical energy has realized not producing the cooking function of spark and naked light as the cooking apparatus of culinary art thermal source, cooking method such as also can realize stewing, boil, its part that comes with some shortcomings needs targetedly to be improved:
1. the rate of heat transfer of pot wall was lower in the chemical energy in the outer pot conducted in the cooking process.Exothermic mixture and water generates chemical reaction discharge chemical energy in the outer pot, in the continuous dispose procedure of chemical energy, excessive response water in the outer pot will be heated to boiling gradually, condensation discharged heat of vaporization after the water vapour that produces ran into inner pot outer wall, thereby utilize heat of vaporization internally the medium in the pot (as, water) heat, along with the temperature of the medium in the interior pot raise and remain on uniform temperature (as, water temperature is increased to 100 ℃ and invariable under the atmospheric pressure), the food in the interior pot is progressively cooked and is finished.For interior pot, the heat that it obtained is the internal face of pot in the outside wall surface from interior pot passes to.This heat transfer process belongs to the conduction of one dimension stationary state heat, and the big I of rate of heat transfer is simplified the heat conducting computing formula of one dimension stationary state of coming according to the Fourier law of heat conduction and estimated.Shown in following formula:
Q is a rate of heat transfer in the formula; T
1And T
2The temperature of outer, the interior two sides of pot wall in being respectively; A is the heating surface area of inner pot outer wall; δ is the wall thickness of interior pot; δ/(λ A) is the heat conducting thermal resistance of interior pot wall; T
1-T
2Be the motive force of conducting heat.
This shows that after shape, size, material and the wall thickness of interior pot were fixing, the heat conducting thermal resistance of Nei Guobi was a fixed value.So, the motive force T of rate of heat transfer Q and heat transfer
1-T
2Be directly proportional.If the temperature T of the lateral surface of interior pot wall
1Big more, then rate of heat transfer is big more.It is affixed with the formation confined space all to adopt O-ring seal to carry out between the general and interior pot of the outer pot of the pot of existing employing exothermic mixture, and makes gas in this confined space that certain pressure (as, 1.2 times of atmospheric pressure) be arranged.Because the relation between the temperature of gas and the pressure of its environment of living in is observed The Ideal-Gas Equation, after the force value of this confined space was fixing, the temperature of gas was also fixing thereupon, and the heat of vaporization of water vapour also immobilizes thereupon.Therefore, when the heat of vaporization that the heat that is obtained when interior pot is discharged by the water vapour in the outer pot fully provides, T
1Value fix.In the pot of existing similar employing exothermic mixture as the culinary art thermal source, the gas pressure in the outer pot is generally 1.2 times of atmospheric pressure, and correspondingly, the temperature of water vapour is only about 105 ℃.Therefore, the water vapour that produces after only reacting with exothermic mixture and water in the outer pot is as the origin of heat of interior pot, because T
1Value (about 105 ℃) smaller, its thermal conduction rate is lower.The defective of bringing thus is, the medium in the heating in the pot (as, water) to seething with excitement the needed time long, the time of cooking food is also in requisition for being prolonged.
2. existing similar employing heating agent is as the cooking container of culinary art thermal source, because need in outer pot, hold the reaction water of heating agent and certain volume, and heating agent itself has certain thickness, and itself and water reaction back thickness can increase 1-2 doubly, therefore reserve the distance about the about 5cm of thickness outside between the outer wall in the inwall in the bottom of a pan and the interior the bottom of a pan.The confined space that forms between pot and the outer pot in this makes is excessive, but the dischargeable capacity that causes food container is than (volume of interior pot and the ratio of the volume of whole cooking ware), generally only be about about 60%, but much smaller than the dischargeable capacity of normally used common cooking container food container than (being generally 100%).The inconvenience that brings thus is presented as: when cooking the food of equal volume, weight, the volume and weight of the cooking container that need produce is bigger, causes producing the cost increase of cooking container, the convenience degree decline of carrying.More is to use out of doors and adopt heating agent as the cooking container of culinary art thermal source, and carrying convenience is one of important performance indexes of similar cooking container.Therefore, carry the application that must influence similar cooking container when not convenient.
3. the chemical energy that adopts heating agent and water reaction generation is during as the thermal source of food cooking, and each component of exothermic mixture is Powdered substantially.Discharge (this will exist gas bleeder valve to be stopped up by the exothermic mixture powder and the possibility of causing danger) together the gas bleeder valve from the outer pot wall for fear of the gas that powder produced with when reaction, exothermic mixture adopts material such as nonwoven to pack usually.When exothermic mixture and water reaction, the heat that produces in the unit interval is very big.And the amount of the water that adds in the common outer pot depends on the amount of heating agent, too much water will cause the heating deleterious of heating agent, therefore, heat can't conduct by the water in the outer pot rapidly fully, and causes the part external packing of heating agent to exist the situation of being burnt to take place.Brought place's cracky such as sealing of external packing thus or broken, thereby made heating agent from external packing, spill, and the dangerous situation that powder stops up gas bleeder valve may take place.
4. the efficiency of heating surface also is directly proportional with the area that the outer wall of interior pot contacts with heating agent except relevant with rate of heat transfer.Exothermic mixture by external packing (as, nonwoven) sealing after, itself and the reacted shape of water are subjected to the restriction of external packing.The external packing surface area of the employed heating agent of existing similar pot is all smaller, and the top surface area of external packing is less than the surface area in the interior the bottom of a pan, and heating agent is also less with the area that the outer wall of interior pot contacts, and is unfavorable for increasing rate of heat transfer.
5. the external packing of the employed heating agent of existing similar pot is all smaller, and exothermic mixture can't freely-movable in the confined space that housing material forms, and the degree that reacts completely when itself and water react is lower.A lot of exothermic mixtures can't react completely, and have caused bigger waste.
Summary of the invention
At the existing problem that adopts exothermic mixture as the cooking ware existence of culinary art thermal source, the purpose of this invention is to provide a kind of follow-on naked light that do not produce, utilize exothermic mixture and water exothermic heat of reaction cooking container as the culinary art thermal source.Cooking container of the present invention can promote heat transfer efficiency significantly, but and the dischargeable capacity of increase food container ratio, the degree that reacts completely of raising exothermic mixture.
For achieving the above object, the invention provides a kind of pot, the interior pot and the outer pot that comprise intussusception setting from the inside to the outside, the top of pot combines with the top seal of described outer pot in described, space in described between the inwall of the outer wall of pot and described outer pot forms conversion zone, the headspace that in described, has specified altitude between the inboard, bottom surface of the bottom surface outside of pot and described outer pot, in described headspace, be placed with can be expanded to described in pot the bottom surface outside the reaction material package.
Aforesaid pot, wherein, the thickness of described reaction material package and the aspect ratio of described headspace are 1: 2.
Aforesaid pot, wherein, the height h of described headspace is 2cm.
Aforesaid pot, wherein, described in the bottom of a pan be contained in the zone that the outline line of the upper surface of described reaction material package surrounds towards the orthographic projection on the direction of described outer pot bottom surface.
Aforesaid pot, wherein, the outer packaging bag of described reaction material package adopts nonwoven cloth material.
Aforesaid pot, wherein, the volume of described interior pot is 75%～85% with the ratio of the volume of described outer pot.
Aforesaid pot wherein, is provided with Sealing shield ring between the inboard, upper edge of the outside, pot upper edge and described outer pot in described.
Aforesaid pot wherein, circumferentially evenly is laid with relief valve, safety valve and air bleeding valve on the top of described outer pot along its outer wall.
Aforesaid pot, wherein, described interior pot and described outer pot adopt metal material to make.
Compared with prior art, the present invention has following characteristics and advantage:
1, the present invention is by directly contacting the outer pot wall of exothermic mixture (being sealed in the external packing) with interior pot (the bottom of a pan particularly), the temperature of self can reach the characteristics of 180 ℃～220 ℃ (much larger than about 100 ℃～105 ℃ of water vapours) when utilizing the reaction of exothermic mixture and water, has effectively increased rate of heat transfer.
2, the present invention is by adopting the exothermic mixture external packing of big (top surface area is identical or bigger with interior the bottom of a pan area), and in conjunction with the reservation thickness between less outer the bottom of a pan inwall and the interior the bottom of a pan outer wall (as, about 2cm), to make exothermic mixture when chemical reaction takes place, gas flowing in conversion zone along with the reaction generation, it can " freedom " be sprawled in outer pot, and form tight the contact with the outer wall of interior pot, thereby effectively increase the internally heating surface area of pot of exothermic mixture self, further effectively increase rate of heat transfer.
3, owing to effectively increased rate of heat transfer, the present invention will significantly shorten the needed time of cooking food.
4, owing to the height that has significantly reduced headspace, but the present invention has the dischargeable capacity of food container than higher characteristics.
5, the present invention is when the food of culinary art equal volume, weight, and the volume and weight of the cooking container that need produce is littler, and the convenience degree that the cost of producing cooking container descends, carries increases.
6, the degree of reacting completely between water and the exothermic mixture that the invention enables is improved, and has further improved the service efficiency of exothermic mixture.
7, because the degree of reacting completely between exothermic mixture and the water is improved, and the present invention has prolonged the reaction time of exothermic mixture and water, make exothermic mixture produce the time lengthening of chemical energy, expanded and can utilize the present invention to carry out the food cooked scope, applied widely.
Description of drawings
Accompanying drawing described here only is used for task of explanation, and is not intended to limit by any way scope disclosed by the invention.In addition, the shape of each parts among the figure and proportional sizes etc. only are schematically, are used to help the understanding of the present invention, are not shape and the proportional sizes that specifically limits each parts of the present invention.Those skilled in the art can select various possible shapes and proportional sizes to implement the present invention under instruction of the present invention as the case may be.
Fig. 1 is the perspective view of pot of the present invention;
Fig. 2 is the decomposition texture schematic diagram of pot of the present invention;
Cross-sectional view before Fig. 3 reacts for pot of the present invention adds entry;
Fig. 4 is the cross-sectional view of pot of the present invention after reaction material package and water reaction.
Description of reference numerals:
Pot in the 1-; The 11-inner pot cover; Pot nigger in the 12-; The short handle of pot in the 13-;
The 2-outer pot; The 21-Sealing shield ring; 22-outer pot nigger; The short handle of 23-outer pot; The 24-relief valve; The 25-safety valve; The 26-air bleeding valve;
The 3-conversion zone; The 4-headspace; 5-reacts material package; The height of h-headspace.
The specific embodiment
With the description of the specific embodiment of the invention, can be well understood to details of the present invention more in conjunction with the accompanying drawings.But the specific embodiment of the present invention described here only is used to explain purpose of the present invention, is limitation of the present invention and can not be understood as by any way.Under instruction of the present invention, the technical staff can conceive based on possible distortion arbitrarily of the present invention, and these all should be regarded as belonging to scope of the present invention.
Please refer to Fig. 1 to Fig. 4, be respectively cross-sectional view and the cross-sectional view of pot of the present invention after reaction material package and water react before the decomposition texture schematic diagram of the perspective view of pot of the present invention, pot of the present invention, pot of the present invention add entry and react.
As shown in Figure 1 and Figure 2, the pot that the present invention proposes comprises the interior pot 1 and the outer pot 2 of intussusception setting from the inside to the outside, and the upper end of interior pot 1 is provided with inner pot cover 11, and pot nigger 12 and interior pot short handle 13 in the outside of interior pot 1 is provided with are so that hand-held.The volume of outer pot 2 is suspended within the outer pot 2 with pot 1 in allowing greater than the volume of interior pot 1, and the outside of outer pot 2 is provided with outer pot nigger 22 and the short handle 23 of outer pot, respectively with the interior pot nigger 12 and the short handle 13 corresponding joints of interior pot of interior pot 1.The top of interior pot 1 combines with the top seal of outer pot 2, in the present embodiment, is being provided with Sealing shield ring 21 between the inboard, upper edge of the outside, interior pot of 1 upper edge and outer pot 2, thereby guarantees being sealed and matched of interior pot 1 and outer pot 2.As shown in Figure 3, Figure 4, the space between the outer wall of interior pot 1 and the inwall of outer pot 2 forms conversion zone 3, thereby provides effective reaction compartment for reaction material package in the outer pot 25 and water carry out chemical heat release.The headspace 4 that between the inboard, bottom surface of interior pot 1 the outside, bottom surface and outer pot 2, has specified altitude, the height h of this headspace 4 is reduced significantly, after reaction material package 5 is reacted with water, powder (exothermic mixture) volumetric expansion in the reaction material package 5, reaction material package 5 expands thereupon together, make reaction material package 5 be expanded to the outside, bottom surface of interior pot 1, the powder of high temperature heat release (exothermic mixture) directly contacts with the bottom surface of interior pot 1 by the outer packaging bag of reaction material package when reacting like this.In the course of reaction, the temperature of exothermic mixture and external packing thereof can reach 180 ℃ 220 ℃.Because the present invention has reduced the height h of headspace 4, by exothermic mixture and packing thereof are closely contacted with the outer wall of interior pot, can conduct so that the part heat that exothermic mixture produces during with the water reaction directly carries out heat by interior pot of wall.Comparing the existing heat of vaporization that discharges after adopting chemical energy that exothermic mixture and water reaction produce only to adopt water vapour and interior pot of wall contacts as the vessel of the thermal source of food cooking carries out heat and conducts, enlarged markedly the heating-up temperature of internal pot 1 bottom surface, promptly increased to 180 ℃～220 ℃ by existing about 105 ℃.Like this, according to the heat conducting computing formula of above-mentioned one dimension stationary state, will effectively increase rate of heat transfer.
Further, as shown in Figure 3, Figure 4, the upper surface area of reaction material package 5 is more than or equal to interior pot 1 base area, in the zone that the outline line that makes the orthographic projection of 1 bottom surface on outer pot 2 bottom surface directions of interior pot be contained in the upper surface of reaction material package 5 surrounds.In this enforcement, reaction material package 5 is paved with whole outer pot 2 bottom surfaces.Thus, increase the contact area of exothermic mixture and interior pot 1.To flow and the characteristics of deformation will take place along with gas flow in packaging bag according to pulverous exothermic mixture, adopt the exothermic mixture external packing of big (surface area is identical or bigger with interior the bottom of a pan area), and in conjunction with the reservation thickness between less outer pot 2 bottom surface inwalls and the interior pot 1 bottom surface outer wall, to make exothermic mixture when chemical reaction takes place, along with gas flow, it can " freedom " be sprawled in outer pot, and form tight the contact with the outer wall of interior pot, thereby effectively increase the internally heating surface area of pot of exothermic mixture self, further effectively increase rate of heat transfer.In addition, adopt the method for the exothermic mixture external packing of large surface area, the flowability that makes exothermic mixture in external packing is increased, the degree of reacting completely between water and the exothermic mixture is improved, and has further improved the service efficiency of exothermic mixture.Simultaneously,, can also prolong the reaction time of exothermic mixture and water, make exothermic mixture produce the time lengthening of chemical energy, expand the scope of this type of cooking ware cooking food because the degree of reacting completely between water and the exothermic mixture is improved.For example, cooking rice etc. need about 20 minutes, and stewed chop etc. need 40 minutes.By prolonging the time that exothermic mixture produces chemical energy, the exothermic mixture of same deal can only be applied to cooking rice in the prior art, and after the present invention prolongs the reaction time, both can be used for cooking rice, also can be extended to application such as stewing chop.
Further, the thickness of reaction material package 5 is 1: 2 with the height h ratio of headspace 4 before the reaction, the bottom surface outer wall of pot 1 in can being expanded to assurance reaction material package 5.In the present embodiment, the height of headspace 4 is 2cm, and the height of headspace also can be other suitable size value certainly, as long as the bottom surface outer wall of pot 1 in guaranteeing can closely contact after 5 reactions of reaction material package are expanded.
Further, the outer packaging bag of reaction material package 5 adopts nonwoven cloth material.Certainly, also can adopt water penetration and thermal conductivity other well known materials preferably.
Further, because the present invention has reduced the height of headspace 4, the volume of pot 1 is 75%～85% with the ratio of the volume of outer pot 2 in making, but thereby the dischargeable capacity ratio of increase food container, so just can reduce the volume and weight of cooking container, reach and reduce cost the effect of the convenience degree that raising is carried.
Further, as shown in Figure 2, circumferentially evenly be laid with relief valve 24, safety valve 25 and air bleeding valve 26 on the top of outer pot 2 along its outer wall.
Further, interior pot 1 and outer pot 2 adopt metal material to make.
In sum, the dischargeable capacity ratio of heat transfer efficiency height food container is high, the high characteristics of the degree that reacts completely of exothermic mixture but cooking container of the present invention has, and has boundless application prospect and commercial promise.
Detailed explanation at the respective embodiments described above, its purpose only is the present invention is made an explanation, so that can understand the present invention better, but, it is limitation of the present invention that these descriptions can not be construed to any reason, particularly, each feature of describing in different embodiments also can make up arbitrarily mutually, thereby form other embodiments, except clear and definite opposite description is arranged, these features should be understood that can be applied in any one embodiment, and also not only are confined to described embodiment.
Claims (9)
1. pot, the interior pot and the outer pot that comprise intussusception setting from the inside to the outside, the top of pot combines with the top seal of described outer pot in described, space in described between the inwall of the outer wall of pot and described outer pot forms conversion zone, it is characterized in that, the headspace that in described, has specified altitude between the inboard, bottom surface of the bottom surface outside of pot and described outer pot, in described headspace, be placed with can be expanded to described in pot the bottom surface outside the reaction material package.
2. pot as claimed in claim 1 is characterized in that, the thickness of described reaction material package and the aspect ratio of described headspace are 1: 2.
3. pot as claimed in claim 2 is characterized in that, the height of described headspace is 2cm.
4. as claim 1 or 2 or 3 described pots, it is characterized in that, described in the bottom of a pan be contained in the zone that the outline line of the upper surface of described reaction material package surrounds towards the orthographic projection on the direction of described outer pot bottom surface.
5. pot as claimed in claim 4 is characterized in that, the outer packaging bag of described reaction material package adopts nonwoven cloth material.
6. pot as claimed in claim 5 is characterized in that, the volume of described interior pot is 75%～85% with the ratio of the volume of described outer pot.
7. pot as claimed in claim 1 is characterized in that, is provided with Sealing shield ring between the inboard, upper edge of the outside, pot upper edge and described outer pot in described.
8. pot as claimed in claim 1 is characterized in that, circumferentially evenly is laid with relief valve, safety valve and air bleeding valve on the top of described outer pot along its outer wall.
9. pot as claimed in claim 1 is characterized in that, described interior pot and described outer pot adopt metal material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101667696A CN103211485A (en) | 2013-05-08 | 2013-05-08 | Cooking pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101667696A CN103211485A (en) | 2013-05-08 | 2013-05-08 | Cooking pot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103211485A true CN103211485A (en) | 2013-07-24 |
Family
ID=48809917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101667696A Pending CN103211485A (en) | 2013-05-08 | 2013-05-08 | Cooking pot |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105167575A (en) * | 2015-09-02 | 2015-12-23 | 刘九金 | Electric cooker making use of natural pressure and undergoing conductive heating |
| CN109527979A (en) * | 2013-12-13 | 2019-03-29 | Seb公司 | Use steam heating and/or the electric equipment of cooking food |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101537A (en) * | 1994-01-14 | 1995-04-19 | 刘顺益 | Food high temperature sectional vapour fast boiling heating method |
| JPH0994168A (en) * | 1995-09-30 | 1997-04-08 | Masatoshi Sugawara | Food heating vessel equipped with heat emitting body |
| JP2000107039A (en) * | 1998-09-30 | 2000-04-18 | Hisao Horiguchi | Portable heating container |
| CN201046049Y (en) * | 2007-06-21 | 2008-04-16 | 李婷婷 | Simple warming cooker |
| CN202843296U (en) * | 2012-08-08 | 2013-04-03 | 蔡绪荣 | No fire cooking pot |
| CN203302848U (en) * | 2013-05-08 | 2013-11-27 | 武小娴 | Cooking pot |
-
2013
- 2013-05-08 CN CN2013101667696A patent/CN103211485A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101537A (en) * | 1994-01-14 | 1995-04-19 | 刘顺益 | Food high temperature sectional vapour fast boiling heating method |
| JPH0994168A (en) * | 1995-09-30 | 1997-04-08 | Masatoshi Sugawara | Food heating vessel equipped with heat emitting body |
| JP2000107039A (en) * | 1998-09-30 | 2000-04-18 | Hisao Horiguchi | Portable heating container |
| CN201046049Y (en) * | 2007-06-21 | 2008-04-16 | 李婷婷 | Simple warming cooker |
| CN202843296U (en) * | 2012-08-08 | 2013-04-03 | 蔡绪荣 | No fire cooking pot |
| CN203302848U (en) * | 2013-05-08 | 2013-11-27 | 武小娴 | Cooking pot |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109527979A (en) * | 2013-12-13 | 2019-03-29 | Seb公司 | Use steam heating and/or the electric equipment of cooking food |
| CN109527979B (en) * | 2013-12-13 | 2020-12-11 | Seb公司 | Electric appliance for heating and/or cooking food using steam |
| CN105167575A (en) * | 2015-09-02 | 2015-12-23 | 刘九金 | Electric cooker making use of natural pressure and undergoing conductive heating |
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Application publication date: 20130724 |