WO2001010278A1 - Warmhalteanordnung - Google Patents
Warmhalteanordnung Download PDFInfo
- Publication number
- WO2001010278A1 WO2001010278A1 PCT/EP2000/007056 EP0007056W WO0110278A1 WO 2001010278 A1 WO2001010278 A1 WO 2001010278A1 EP 0007056 W EP0007056 W EP 0007056W WO 0110278 A1 WO0110278 A1 WO 0110278A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- arrangement according
- heat
- substrate
- heating element
- emitting material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
- B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
- B65D81/3816—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed of foam material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
- B65D2585/30—Containers, packaging elements or packages specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
- B65D2585/36—Containers, packaging elements or packages specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for biscuits or other bakery products
- B65D2585/363—Containers, packaging elements or packages specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for biscuits or other bakery products specific products
- B65D2585/366—Pizza
Definitions
- the invention relates to an arrangement for keeping a substrate warm, which emits water vapor at least in the heated state.
- the object of the invention is to provide an arrangement of the type mentioned at the outset with which the substrate can be kept warm with simple and inexpensive measures and in which no special containers are required.
- the invention is based primarily on the knowledge that on the one hand many substrates release water vapor in the heated state and that on the other hand On the one hand, certain materials sorb water vapor exothermically.
- the arrangement according to the invention therefore provides that the substrate which emits water vapor at least in the heated state is arranged in a common air space with a heating element which contains a material which emits heat while absorbing water.
- the air space is expediently thermally insulated from the surroundings, for example by being formed by the interior of an insulated container for receiving the substrate and the heating element.
- the heat transfer from the heating element to the substrate preferably takes place either by convection or heat conduction via the air space or via a heat-conducting contact surface between the substrate and the heating element.
- the heat-emitting material should preferably have a heat of adsorption released of at least 2000 kJ, in particular about 4000 kJ per kg of water taken up and a specific heat of less than 50 kJ / kg, preferably less than 10 kJ / kg.
- the heat-emitting material is preferably porous with an average pore size of 0.2 to 4 nm and can be a granulate or a powder with an average grain diameter of 0.1 to 4 mm. These properties of the heat-emitting material are met in particular by zeolites.
- the heating element expediently has a bag containing the material and permeable to air and water vapor, which is preferably designed as a textile bag.
- the heating element can be used cyclically, ie it is used in the desorbed state and gives off heat while absorbing water. As soon as the heating element is partially or completely saturated with water, the heating element can be regenerated by heating in a comparatively dry atmosphere.
- the temperature required for regeneration can be between less than 100 ° C to about 400 ° C.
- the textile material of the bag and its suture material should consist of a material that is temperature-resistant at least up to 200 ° C., preferably up to 400 ° C.
- the heat-emitting material is embedded directly in a dimensionally stable support body.
- a dimensionally stable support body This can consist, for example, of a fibrous material which is permeable to water vapor, be plate-shaped and serve as an underlay plate for the substrate to be kept warm.
- the support body can also be integrated directly into the insulating container, wherein the insulating container can be a cardboard folding box.
- Cardboard boxes of this type generally have a layer structure with internal cavities.
- the heat-emitting material can then be arranged in the cavities as granules or powder during the manufacture of the cardboard box.
- a type of impregnation of a support body for example, as a paper that can be torn off from a supply roll, is also possible, provided that a sufficient amount of heat-emitting material can be absorbed by it.
- the arrangement according to the invention is particularly effective when all the water vapor emitted by the substrate can also be absorbed by the heating element.
- the insulating container can therefore be closed in a vapor-tight manner. This ensures that the water vapor emitted by the substrate is not is lost to the environment, but is predominantly adsorbed by the heating element, which means that it can emit a higher amount of heat.
- the arrangement according to the invention is particularly suitable for keeping dishes warm. It is particularly advantageous that the food is not only kept warm by the heating element, but that at the same time the often unwanted water vapor emitted by the food is adsorbed by the heating element.
- dishes such as pizzas, French fries and the like, which are delivered to the consumer as part of a so-called delivery service, often suffer a loss in quality on the transport route due to condensing water vapor.
- softening is mainly responsible for a considerable reduction in enjoyment for the consumer.
- the warming arrangement according to the invention in keeping warm and dry water-vapor-releasing dishes, in particular pizzas, during transport in an air-tight insulating container.
- the invention is explained in more detail below with reference to an exemplary embodiment shown schematically in the drawing.
- the single figure shows a cross section through a transport container with two pizzas arranged therein and a heating element.
- the arrangement shown in the figure for keeping food warm essentially consists of a heat-insulated transport container 10 which can be closed in a vapor-tight manner by a cover 12.
- the container 10 and the lid 12 consist, for example, of a foamed plastic material.
- the interior of the container 10 is dimensioned such that a plurality of pizzas 16 packed in cardboard boxes 14 can be picked up and stacked on top of one another by the container.
- the cardboard boxes 14 have a plurality of ventilation openings 18 on their long sides, through which water vapor 20 emitted by the warm pizzas 16 can escape into the air space 22 of the container 10.
- the water vapor 20 is adsorbed by the heating element 24, whereby this releases heat of adsorption 26 which heats the air space 22 and thus the pizzas 16.
- the water vapor escaping the pizzas 16 is bound at the same time so that they cannot soften.
- the heating element 24 consists of a bag 28, which consists of an air and vapor permeable textile material and which is filled with a granulated zeolite 30.
- the textile structure of the bag 28 is designed in such a way that air and water vapor can pass through, but that the zeolite granules 30 are retained.
- the zeolite 30 has a heat of adsorption of about 3700 kJ per kg of water absorbed with a specific heat of only about 0.9 kJ / kg, so that a high efficiency for the heating element is achieved, since almost all of the heat of adsorption for heating the air space 22nd and so the pizza 16 is available.
- Another advantage of the zeolite is that it is food-neutral and therefore no special safety measures need to be taken when arranging the heating element 24 in the container 10.
- the textile material of the bag 28 including the seams is temperature resistant up to about 400 ° C.
- the heating element 24 can be regenerated in a simple manner, for example, by heating it in a pizza oven or a microwave oven to desorb the water taken up by the zeolite 30.
- the invention relates to an arrangement for keeping a substrate warm, which emits water vapor at least in the heated state.
- the substrate 16 is arranged in a common air space 22 with a heating element 24 which contains a material 30 which emits heat while absorbing water.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cookers (AREA)
- Packages (AREA)
- Finger-Pressure Massage (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE50008848T DE50008848D1 (de) | 1999-08-04 | 2000-07-22 | Warmhalteanordnung |
| EP00958287A EP1199964B1 (de) | 1999-08-04 | 2000-07-22 | Warmhalteanordnung |
| AT00958287T ATE283657T1 (de) | 1999-08-04 | 2000-07-22 | Warmhalteanordnung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19936025A DE19936025A1 (de) | 1999-08-04 | 1999-08-04 | Warmhalteanordnung |
| DE19936025.1 | 1999-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001010278A1 true WO2001010278A1 (de) | 2001-02-15 |
Family
ID=7916706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2000/007056 Ceased WO2001010278A1 (de) | 1999-08-04 | 2000-07-22 | Warmhalteanordnung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1199964B1 (de) |
| AT (1) | ATE283657T1 (de) |
| DE (2) | DE19936025A1 (de) |
| WO (1) | WO2001010278A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10110850A1 (de) * | 2001-03-07 | 2002-09-12 | Rolf Groeger | Kondensspeicher |
| EP2447624A3 (de) * | 2010-10-28 | 2012-12-05 | Vaillant GmbH | Wärmepumpe |
| DE102012008524A1 (de) * | 2012-05-02 | 2013-11-07 | Antonio Crapanzano | Pizza-Transportbox |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0140380A2 (de) * | 1983-10-31 | 1985-05-08 | ZEO-TECH Zeolith Technologie GmbH | Verfahren und Vorrichtung zur Erwärmung eines Mediums |
| EP0203558A2 (de) * | 1985-05-28 | 1986-12-03 | ZEO-TECH Zeolith Technologie GmbH | Vorrichtung und Verfahren zur Erwärmung von Wasser durch einen periodischen Adsorptionsprozess |
| WO1989008806A1 (en) * | 1988-03-17 | 1989-09-21 | International Thermal Packaging, Inc. | Apparatus and method for simultaneously heating and cooling separate zones |
| US5159177A (en) * | 1990-08-14 | 1992-10-27 | Alois Kinberger | Container for transporting hot ready-to-eat meals and keeping them hot |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19507768A1 (de) * | 1994-09-12 | 1996-03-14 | Electrolux Leisure Appliances | Sorptions-Kühlaggregat |
| DE29508306U1 (de) * | 1995-05-19 | 1995-08-03 | Serr, Johannes, 73230 Kirchheim | Transportbehälter für Pizzen |
-
1999
- 1999-08-04 DE DE19936025A patent/DE19936025A1/de not_active Withdrawn
-
2000
- 2000-07-22 WO PCT/EP2000/007056 patent/WO2001010278A1/de not_active Ceased
- 2000-07-22 AT AT00958287T patent/ATE283657T1/de not_active IP Right Cessation
- 2000-07-22 DE DE50008848T patent/DE50008848D1/de not_active Expired - Lifetime
- 2000-07-22 EP EP00958287A patent/EP1199964B1/de not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0140380A2 (de) * | 1983-10-31 | 1985-05-08 | ZEO-TECH Zeolith Technologie GmbH | Verfahren und Vorrichtung zur Erwärmung eines Mediums |
| EP0203558A2 (de) * | 1985-05-28 | 1986-12-03 | ZEO-TECH Zeolith Technologie GmbH | Vorrichtung und Verfahren zur Erwärmung von Wasser durch einen periodischen Adsorptionsprozess |
| WO1989008806A1 (en) * | 1988-03-17 | 1989-09-21 | International Thermal Packaging, Inc. | Apparatus and method for simultaneously heating and cooling separate zones |
| US5159177A (en) * | 1990-08-14 | 1992-10-27 | Alois Kinberger | Container for transporting hot ready-to-eat meals and keeping them hot |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50008848D1 (de) | 2005-01-05 |
| EP1199964B1 (de) | 2004-12-01 |
| ATE283657T1 (de) | 2004-12-15 |
| DE19936025A1 (de) | 2001-02-08 |
| EP1199964A1 (de) | 2002-05-02 |
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