CN216416747U - Heat storage type heat preservation bowl and tray - Google Patents
Heat storage type heat preservation bowl and tray Download PDFInfo
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- CN216416747U CN216416747U CN202123298656.0U CN202123298656U CN216416747U CN 216416747 U CN216416747 U CN 216416747U CN 202123298656 U CN202123298656 U CN 202123298656U CN 216416747 U CN216416747 U CN 216416747U
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Abstract
The utility model provides a heat storage type heat preservation bowl tray, which comprises a bowl tray-shaped inner container, a heat storage material, a shell, a mouth edge expansion ring, a foot edge expansion ring, a mouth edge and a ring foot; the heat storage material is arranged between the bowl-dish-shaped inner container and the shell, the heat storage material belongs to a phase-change material, and when the temperature of the solid-liquid phase-change heat storage material is higher than the phase-change temperature of the material, the phase of the solid-liquid phase-change heat storage material is changed into a liquid state from a solid state, so that heat is absorbed; when the temperature is lower than the phase-change temperature of the solid-liquid phase-change heat storage material, the phase is changed from liquid to solid, and heat is released. The endothermic and exothermic processes are reversible and thus reusable. The heat storage material is paraffin or stearic acid. The heat storage type heat preservation bowl and plate tray adopts a household oven or a tableware disinfection cabinet to heat to complete the heat storage process or completes the heat storage through water boiling and heating of a pot, so that the existing electric heating type dish warming plate, the electric heating type dish warming plate and the electric heating type desktop heat preservation plate are safer, and compared with the heating by burning solid alcohol, the electric heating type dish warming plate is more sanitary, more environment-friendly, free of open fire operation and better in safety.
Description
Technical Field
The invention relates to tableware, in particular to a heat storage type heat preservation bowl and tray.
Background
Chinese dishes are very rich in variety, mainly hot dishes, and are poor in taste and cause gastrointestinal discomfort after being cooled; in order to enable the temperature of hot dishes to be not too low, the merchant has provided a dish warming plate, a hot dish plate, a tabletop heat preservation plate, a dish warming device and the like, the appliances are powered on and heated in real time through electric heating devices, the real-time heating mode needs to connect wires to a dining table, the insulation treatment must be very strict, and otherwise, the electric leakage and electric shock danger exists. In order to avoid electric shock hazard, a plurality of restaurants and hotels adopt a solid alcohol combustion mode to heat dishes, and the solid alcohol is industrial alcohol (the main component is ethanol CH)3CH2OH) is added with a coagulant to make it solid. There is less risk of fire burning than liquid alcohol when used, but there is still a greater risk if not managed properly. When solid alcohol is combusted, indoor air is polluted to a certain extent, and the solid alcohol is particularly suitable for catering places with poor ventilation.
In Chinese meal catering, except for the fact that the temperature of hot dishes needs to be kept at 40-50 ℃, some wine and tea are also kept at 40-50 ℃ to be more palatable.
Disclosure of Invention
In view of the above problems, the task of the present invention is to provide a thermal insulation device for hot dishes, which has good safety, no environmental pollution and convenient operation, and a thermal insulation bowl tray.
Realize the utility model relates to a technical scheme of heat-retaining formula heat preservation bowl dish support
A heat storage type heat preservation bowl and dish tray comprises a bowl and dish-shaped inner container, a heat storage material, a shell, a mouth edge expansion ring, a foot edge expansion ring, a mouth edge and a ring foot;
the opening edge of the bowl-dish-shaped inner container is fixed with the top edge of the outer shell by adopting an opening rolling process, and the opening edge is placed in the opening by an expansion ring through the opening rolling process;
the opening edge is a flat edge extending outwards from the bowl-dish-shaped inner container;
the opening edge expansion ring plays a role in enhancing the edge curling of the opening edge and plays a role in sealing the top edge of the shell and the opening edge of the bowl-dish-shaped liner, and water and steam are prevented from entering a space between the bowl-dish-shaped liner and the shell from the tangent position of the top edge of the shell and the opening edge;
the foot edge of the inner container of the bowl-dish-shaped inner container is fixed with the ring foot of the outer shell by adopting a curled edge, and the foot edge expansion ring is arranged in the curled edge by adopting a curled edge process;
the ring foot is an annular structure manufactured by a shell foot bending process;
the foot edge expansion ring plays a role in strengthening the ring foot, plays a role in sealing the ring foot and the foot edge of the inner container and prevents water and steam from entering a space between the bowl-shaped inner container and the shell;
the space between the bowl-dish-shaped inner container and the shell is filled with heat storage materials;
the mouth edge expansion ring is made of silicon rubber, the silicon rubber has good high-temperature stability, certain flexibility, resilience and surface hardness can be kept in a high-temperature environment below 200 ℃, and the mechanical properties are not obviously changed. The low temperature performance is excellent, and the glass transition temperature is-70 to-50 ℃. The weather resistance is good, Si-O-Si bonds in the silicon rubber are very stable to oxygen, ozone, ultraviolet rays and the like, and the silicon rubber has excellent weather resistance without adding any modifying additive. The silicone rubber is physiologically inert, nontoxic, tasteless and odorless.
The structural parts of the bowl-dish-shaped inner container which are contacted with the outer wall of the dish for heat transfer are made of stainless steel or metal aluminum;
the shell and the bowl-dish-shaped inner container form a sandwich space structure part and are made of stainless steel or metal aluminum;
the heat storage material is a solid-liquid phase change heat storage material, and when the temperature of the solid-liquid phase change heat storage material is higher than the phase change temperature of the material, the phase of the solid-liquid phase change heat storage material is changed from a solid state to a liquid state, so that heat is absorbed; when the temperature is lower than the phase-change temperature of the solid-liquid phase-change heat storage material, the phase is changed from liquid to solid, and heat is released. This process of heat absorption and heat release of the solid-liquid phase change heat storage material is reversible, and thus the solid-liquid phase change heat storage material can be recycled.
In this embodiment, the material for storing heat is an organic phase change material, specifically, an organic phase change material paraffin or stearic acid.
The utility model discloses a positive effect of heat-retaining formula heat preservation bowl dish support
With current warm chopping board, hot chopping board, desktop heated board, warm dish is precious to be compared, the utility model relates to a heat-retaining formula heat preservation bowl dish holds in palm adopts heat accumulation's phase change material to seal between bowl dish shape inner bag and shell, adopts tableware sterilizer, oven heating to accomplish the heat-retaining process, can adopt pot boiling heating to accomplish the heat-retaining process to the family that does not have tableware sterilizer, oven, need not to be connected to the dining table with the power wire on, compare with burning solid alcohol, do not have naked light operation, safer, more convenient solution hot dish heat preservation problem.
Drawings
FIG. 1 is a diagram of a heat storage type heat preservation bowl tray of the present invention;
in the figure, 3 shells, 6 edges and 7 circles of feet are shown;
FIG. 2 is a top view of FIG. 1;
in the figure, 1 a bowl-dish-shaped inner container and 6 opening edges;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
in the figure, 1 a bowl-dish-shaped inner container, 1-1 an inner container foot edge, 2 heat storage materials, 3 an outer shell, 3-1 an outer shell top edge, 4 opening edge expansion rings, 5 foot edge expansion rings, 6 opening edges and 7 circles of feet;
FIG. 4 is an enlarged view of section I of FIG. 3;
in the figure, 1-1 of the inner container is provided with a foot edge, 5 foot edge expansion rings and 7 foot rings;
FIG. 5 is an enlarged partial view of II of FIG. 3;
in the figure, 3-1 the top edge of the shell, 6 opening edges and 4 opening edges are expansion rings;
Detailed Description
The following detailed description of the embodiments will be made with reference to the accompanying drawings
As shown in fig. 3, 4 and 5, the heat storage type heat preservation bowl tray comprises a bowl tray-shaped inner container 1, a heat storage material 2, a shell 3, a mouth edge expansion ring 4, a foot edge expansion ring 5, a mouth edge 6 and a ring foot 7;
the opening edge 6 of the bowl-dish-shaped inner container 1 and the top edge 3-1 of the outer shell 3 are fixed by adopting a mouth rolling process, and the opening edge expansion ring 4 is placed in the mouth of the mouth by adopting the mouth rolling process;
the opening edge 6 is a flat edge extending outwards from the bowl-dish-shaped inner container 1;
the opening edge expansion ring 4 plays a role in enhancing the edge curling of the opening edge and plays a role in sealing the top edge 3-1 of the shell and the opening edge 6 of the bowl-shaped and disc-shaped liner 1 so as to prevent water and steam from entering a space between the bowl-shaped and disc-shaped liner 1 and the shell 3 from the tangent position of the top edge 3-1 of the shell and the opening edge 6;
the liner foot edge 1-1 of the bowl-dish-shaped liner 1 and the ring foot 7 of the shell 3 are fixed by adopting a curled edge, and the foot edge expansion ring 5 is arranged in the curled edge by adopting a curled edge process;
the ring foot 7 is an annular structure manufactured by a foot bending process of the shell 3;
the foot edge expansion ring 5 plays a role in reinforcing the ring foot 7 and sealing the ring foot 7 and the liner foot edge 1-1 to prevent water and steam from entering a space between the bowl-shaped liner 1 and the shell 3;
the space between the bowl-dish-shaped inner container 1 and the outer shell 3 is filled with heat storage materials 2;
the mouth edge expansion ring 4 is made of silicon rubber, the silicon rubber has good high-temperature stability, certain flexibility, rebound resilience and surface hardness can be kept in a high-temperature environment below 200 ℃, and the mechanical properties are not obviously changed. The low temperature performance is excellent, and the glass transition temperature is-70 to-50 ℃. The weather resistance is good, Si-O-Si bonds in the silicon rubber are very stable to oxygen, ozone, ultraviolet rays and the like, and the silicon rubber has excellent weather resistance without adding any modifying additive. The silicone rubber is physiologically inert, nontoxic, tasteless and odorless.
The structural parts of the bowl-dish-shaped inner container 1, which are contacted with the outer wall of the dish for heat transfer, are made of stainless steel or metal aluminum;
the shell 3 and the bowl-dish-shaped liner 1 form a sandwich space structure part and are made of stainless steel or metal aluminum;
the heat storage material 2 is a solid-liquid phase change heat storage material, and when the temperature of the solid-liquid phase change heat storage material is higher than the phase change temperature of the material, the phase of the solid-liquid phase change heat storage material is changed from a solid state to a liquid state, so that heat is absorbed; when the temperature is lower than the phase-change temperature of the solid-liquid phase-change heat storage material, the phase is changed from liquid to solid, and heat is released. This process of heat absorption and heat release of the solid-liquid phase change heat storage material is reversible, and thus the solid-liquid phase change heat storage material can be recycled.
In this embodiment, the material for storing heat is an organic phase change material, specifically, an organic phase change material paraffin or stearic acid.
The paraffin and stearic acid phase-change material is harmless to human bodies, is neutral when in a liquid state, has stable chemical properties and does not have a supercooling phenomenon. The volume change rate is very small, and the influence on the packaging, pressure bearing, service life and the like of the container is small.
The paraffin wax had a solid density of 900kg/m3The liquid density is 860 to 890kg/m3The specific heat capacity is 2.14-2.9 KJ/kg.K, the melting heat is 200-220 KJ/kg, and the phase transition temperature is 52-63 ℃; the temperature of the paraffin wax with different grades is different;
stearic acid has a solid density of 965kg/m3The density of the liquid is 848-878 kg/m3The specific heat capacity is 2.2 KJ/kg.K, the melting heat is 219.36KJ/kg, and the phase transition temperature is 56.8-68.9 ℃. Paraffin is one kind of petroleum processed product, and is used in preparing higher fatty acid and higher alcohol. The paraffin is classified into food grade (food grade and packaging grade, the former is excellent) and industrial grade, and the food grade is nontoxic.
The stearic acid has the phase change latent heat equivalent to that of paraffin, has good recyclability and higher cost, and the unit price of the stearic acid is more than four times that of the paraffin. Therefore, paraffin is preferred as the organic phase change material in this embodiment.
Use method of heat storage type heat preservation bowl and plate tray
The existing conditions of households, such as a tableware disinfection cabinet and an oven, are utilized to support the heat-storage heat-preservation bowl tray in the disinfection cabinet or the oven, the temperature of the disinfection cabinet and the oven is set to be higher than the phase-change temperature of the phase-change heat-storage material, preferably 70 ℃, the phase change of the phase-change heat-storage material from solid to liquid can be completed by baking for about 20min at 70 ℃, and the heat-storage heat-preservation bowl tray trays with different specifications and models are slightly different. For families without tableware disinfection cabinets and ovens, the phase change heat storage material can be boiled in water for 15min and can complete the phase change from solid to liquid. In the space between the bowl-shaped inner container 1 and the outer shell 3, the filled heat storage material 2 can be taken out and placed on a dining table after the phase change is finished, then the bowl filled with hot dishes is placed in the bowl-shaped inner container 1, the hot dishes are in a heat preservation state, the phase change temperature of the phase change heat storage material is 52-63 ℃, the isothermal heat release process is adopted in the phase, and the hot dishes in the bowl are kept at 52-63 ℃ for a long time.
Claims (1)
1. The utility model provides a heat-retaining formula heat preservation bowl dish tray, includes that bowl dish shape inner bag (1), heat-retaining material (2), shell (3), mouth are followed expansion ring (4), sufficient limit expansion ring (5), mouth are followed (6), are enclosed sufficient (7) and are constituteed characterized by:
the opening edge (6) of the bowl-dish-shaped inner container (1) and the top edge (3-1) of the outer shell (3) are fixed by adopting an opening rolling process, and the opening edge expansion ring (4) is arranged in the opening by adopting the opening rolling process;
the opening edge (6) is a flat edge extending outwards from the bowl-dish-shaped inner container (1);
the liner foot edge (1-1) of the bowl-dish-shaped liner (1) and the ring foot (7) of the shell (3) are fixed by adopting a curled edge, and the foot edge expansion ring (5) is arranged in the curled edge by adopting a curled edge process;
the ring foot (7) is an annular structure manufactured by a foot bending process of the shell (3);
the space between the bowl-dish-shaped inner container (1) and the outer shell (3) is filled with heat storage materials (2);
the heat storage material (2) adopts any one of paraffin and stearic acid;
the mouth edge expansion ring (4) is made of a silicon rubber material;
the bowl-dish-shaped inner container (1) is made of stainless steel or metal aluminum;
the shell (3) is made of stainless steel or metal aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123298656.0U CN216416747U (en) | 2021-12-27 | 2021-12-27 | Heat storage type heat preservation bowl and tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123298656.0U CN216416747U (en) | 2021-12-27 | 2021-12-27 | Heat storage type heat preservation bowl and tray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216416747U true CN216416747U (en) | 2022-05-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123298656.0U Active CN216416747U (en) | 2021-12-27 | 2021-12-27 | Heat storage type heat preservation bowl and tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216416747U (en) |
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2021
- 2021-12-27 CN CN202123298656.0U patent/CN216416747U/en active Active
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