DE102004020166A1 - A method for manufacturing a glass tube liquid heating cartridge has a metal oxide external surface coating endowed with fluorine or antimony - Google Patents
A method for manufacturing a glass tube liquid heating cartridge has a metal oxide external surface coating endowed with fluorine or antimony Download PDFInfo
- Publication number
- DE102004020166A1 DE102004020166A1 DE200410020166 DE102004020166A DE102004020166A1 DE 102004020166 A1 DE102004020166 A1 DE 102004020166A1 DE 200410020166 DE200410020166 DE 200410020166 DE 102004020166 A DE102004020166 A DE 102004020166A DE 102004020166 A1 DE102004020166 A1 DE 102004020166A1
- Authority
- DE
- Germany
- Prior art keywords
- glass tube
- antimony
- fluorine
- manufacturing
- metal oxide
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/142—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using electric energy supply
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
Abstract
Description
Die Erfindung betrifft eine Glasrohrheizeinrichtung mit einem an der Außenseite mit einer Zinnoxid-Beschichtung versehenen Glasrohr, welches mit zumindest einem elektrisch leitfähigen, das Glasrohr umgreifenden Kontaktelement verbunden ist.The The invention relates to a Glasrohrheizeinrichtung with an on the outside with a tin oxide-coated glass tube, which with at least an electrically conductive, the glass tube encompassing contact element is connected.
Derartige Glasrohrheizeinrichtungen können beispielsweise bei Geschirrspülmaschinen, Waschmaschinen oder Kaffeemaschinen zum Einsatz kommen.such Glass tube heaters may, for example for dishwashers, Washing machines or coffee machines are used.
Aus
der
Mit einer derartigen Anordnung lässt sich eine Leistungsaufnahme von bis zu 10 W/cm2 erreichen, wobei ein Betrieb bei Temperaturen bis zu 400°C möglich ist. Eine Leistungsdichte von 10 W/cm2 reicht jedoch nicht aus, um eine ausreichend gute Aufheizrate von durchströmenden Fluiden zu bewirken, wie sie beispielsweise in Waschmaschinen, Spülmaschinen, usw. erforderlich ist.With such an arrangement, a power consumption of up to 10 W / cm 2 can be achieved, with an operation at temperatures up to 400 ° C is possible. However, a power density of 10 W / cm 2 is not sufficient to effect a sufficiently good heating rate of fluids flowing through, as required for example in washing machines, dishwashers, etc.
Es ist Aufgabe der Erfindung, eine Glasrohrheizeinrichtung anzugeben, welche eine ausreichend hohe Leistungsdichte aufweist, um beispielsweise bei der Verwendung in Haushaltsgeräten eine ausreichend hohe Aufheizrate des durchströmenden Fluids, insbesondere Wasser, zu bewirken.It The object of the invention is to provide a glass tube heating device, which has a sufficiently high power density, for example, at of use in household appliances a sufficiently high heating rate of the fluid flowing through, in particular Water, to effect.
Diese Aufgabe der Erfindung wird durch die Merkmale des Anspruches 1 gelöst. Vorteilhafte Weiterbildungen sind jeweils in den Unteransprüchen beschrieben.These The object of the invention is solved by the features of claim 1. advantageous Further developments are each described in the subclaims.
Demgemäss ist vorgesehen, die SnO2-Beschichtung derart zu dotieren, dass eine Leistungsdichte von 15–25 W/cm2, vorzugsweise 18–22 W/cm2 erreicht wird.Accordingly, it is envisaged to dope the SnO 2 coating such that a power density of 15-25 W / cm 2 , preferably 18-22 W / cm 2 is achieved.
Als Dotierung eignet sich in besonders vorteilhafter Weise Fluor oder Antimon.When Doping is particularly preferably fluorine or Antimony.
Um gegen die auftretenden thermischen Belastungen resistent sowie gegen Laugen und Säuren beständig zu sein, kann das Glasrohr aus einem Borosilikatglas, vorzugsweise aus DURAN® von SCHOTT bestehen.In order to be resistant to the occurring thermal stresses as well as resistant to alkalis and acids, the glass tube made of a borosilicate glass may preferably consist of DURAN ® from SCHOTT.
Für die geforderte Leistungsdichte ist eine sehr hohe Uniformität der Schichtdicke und damit des elektrischen Widerstandes notwendig. Dies ist Voraussetzung für ein funktionierendes Glasrohrheizsystem. Deshalb sollte die Uniformität des Flä chenwiderstandes in Längs- und Radialausrichtung des beschichteten Glasrohres < 10% sein.For the required Power density is a very high uniformity of the layer thickness and thus of electrical resistance necessary. This is a requirement for a functioning glass tube heating system. Therefore the uniformity of the surface resistance should be in longitudinal and radial orientation of the coated glass tube <10%.
Der Flächenwiderstand kann dabei 20–40 Ω/⧠, vorzugsweise 28–32 Ω/⧠ betragen, wohingegen die Dicke der dotierten SnO2-Beschichtung 200–400 nm, vorzugsweise 280–320 nm betragen kann.The sheet resistance may be 20-40 Ω / □, preferably 28-32 Ω / □, whereas the thickness of the doped SnO 2 coating may be 200-400 nm, preferably 280-320 nm.
Nachfolgend wird die Erfindung anhand einer bevorzugten Ausführungsform unter Bezugnahme auf die beigefügten Zeichnungen näher erläutert.following the invention will be described with reference to a preferred embodiment on the attached Drawings closer explained.
Es zeigen:It demonstrate:
Die
Kontaktelemente
Die
Kontaktelemente
Das
Material des Glasrohres
Die Zinnoxid- bzw. SnO2-Schicht, ist zur Erhöhung der Leistungsdichte beispielsweise mit Fluor oder Antimon dotiert. Die Leistungsdichte, die dadurch erreicht wird, beträgt 15–25 W/cm2, zumindest jedoch 18–22 W/cm2. Für diese Leistungsdichte ist eine sehr hohe Uniformität der Schichtdicke und damit des elektrischen Widerstandes notwendig. Die Uniformität des Flächenwiderstandes in Längs- und Radialausrichtung ist kleiner als 10%. Der Flächenwiderstand beträgt ca. 30 Ω/⧠. Der Flächenwiderstand und somit die Leistungsaufnahme des Durchflussheizers ist über die Schichtdicke und die beheizte Länge einstellbar. Die Schichtdicke beträgt typischerweise 200–400 nm, vorzugsweise 280–320 nm.The tin oxide or SnO 2 layer, for example, is doped with fluorine or antimony to increase the power density. The power density achieved thereby is 15-25 W / cm 2 , but at least 18-22 W / cm 2 . For this power density is a very high uniformity of the layer thickness and thus the electrical resistance necessary. The uniformity of the sheet resistance in longitudinal and radial orientation is less than 10%. The sheet resistance is approx. 30 Ω / ⧠. The surface resistance and thus the power consumption of the flow heater can be adjusted via the layer thickness and the heated length. The layer thickness is typically 200-400 nm, preferably 280-320 nm.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410020166 DE102004020166A1 (en) | 2004-04-24 | 2004-04-24 | A method for manufacturing a glass tube liquid heating cartridge has a metal oxide external surface coating endowed with fluorine or antimony |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410020166 DE102004020166A1 (en) | 2004-04-24 | 2004-04-24 | A method for manufacturing a glass tube liquid heating cartridge has a metal oxide external surface coating endowed with fluorine or antimony |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004020166A1 true DE102004020166A1 (en) | 2005-11-17 |
Family
ID=35160309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410020166 Withdrawn DE102004020166A1 (en) | 2004-04-24 | 2004-04-24 | A method for manufacturing a glass tube liquid heating cartridge has a metal oxide external surface coating endowed with fluorine or antimony |
Country Status (1)
Country | Link |
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DE (1) | DE102004020166A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013143435A1 (en) * | 2012-03-26 | 2013-10-03 | 昆山渝榕电子有限公司 | High frequency electric heating material pipe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3742373A1 (en) * | 1986-12-23 | 1988-07-07 | Glaverbel | METHOD FOR COATING GLASS AND COATED FLAT GLASS |
DE2833234C2 (en) * | 1977-08-03 | 1990-05-23 | Bfg Glassgroup, Paris, Fr | |
DE19821580A1 (en) * | 1998-05-14 | 1999-11-18 | Rolf Weick | Tin oxide coated glass pipe used in continuous flow heaters, washing machines and coffee machines |
DE19844046C2 (en) * | 1998-09-25 | 2001-08-23 | Schott Glas | Multi-pane insulating glass |
-
2004
- 2004-04-24 DE DE200410020166 patent/DE102004020166A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2833234C2 (en) * | 1977-08-03 | 1990-05-23 | Bfg Glassgroup, Paris, Fr | |
DE3742373A1 (en) * | 1986-12-23 | 1988-07-07 | Glaverbel | METHOD FOR COATING GLASS AND COATED FLAT GLASS |
DE19821580A1 (en) * | 1998-05-14 | 1999-11-18 | Rolf Weick | Tin oxide coated glass pipe used in continuous flow heaters, washing machines and coffee machines |
DE19844046C2 (en) * | 1998-09-25 | 2001-08-23 | Schott Glas | Multi-pane insulating glass |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013143435A1 (en) * | 2012-03-26 | 2013-10-03 | 昆山渝榕电子有限公司 | High frequency electric heating material pipe |
CN103363237A (en) * | 2012-03-26 | 2013-10-23 | 昆山渝榕电子有限公司 | High-frequency electric heating tube |
CN103363237B (en) * | 2012-03-26 | 2016-06-22 | 昆山渝榕电子有限公司 | High-frequency electrical heating material pipe |
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Legal Events
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OP8 | Request for examination as to paragraph 44 patent law | ||
8139 | Disposal/non-payment of the annual fee |