DE7916786U1 - ELECTRICALLY HEATED HOT WATER CURRENT HEATER - Google Patents
ELECTRICALLY HEATED HOT WATER CURRENT HEATERInfo
- Publication number
- DE7916786U1 DE7916786U1 DE19797916786 DE7916786U DE7916786U1 DE 7916786 U1 DE7916786 U1 DE 7916786U1 DE 19797916786 DE19797916786 DE 19797916786 DE 7916786 U DE7916786 U DE 7916786U DE 7916786 U1 DE7916786 U1 DE 7916786U1
- Authority
- DE
- Germany
- Prior art keywords
- tube
- hot water
- heating coil
- channel
- electrically heated
- 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.)
- Expired
Links
Classifications
-
- 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
- F24H1/101—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 using electric energy supply
- F24H1/102—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 using electric energy supply with resistance
- F24H1/103—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 using electric energy supply with resistance with bare resistances in direct contact with the fluid
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)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Description
Elektrisch beheizter Heißwasser-DurchlauferhitzerElectrically heated hot water instantaneous water heater
Die Neuerung bezieht sich auf einen elektrisch beheizten Heißwasser-Durchlauferhitzer mit einem die wasser durchströmten Kanäle enthaltenden Gehäuse, in dessen einem Kanal ein die von elektrischem Strom durchflossene Heizspirale enthaltendes Isolierrohr angeordnet ist.The innovation relates to an electrically heated hot water instantaneous water heater with a water flowing through it Housing containing channels, in one of which a channel contains a heating coil through which electrical current flows Isolation tube is arranged.
Bei bekannten derartigen Geräten hat sich gezeigt, daß häufig eine ungenügende Isolation zwischen der im aufzuheizenden Wasserstrom liegenden Heizspirale und dem wasserdurchströmten, Kanäle enthaltenden Gehäuse vorliegt. Weiterhin haben die bekannten Geräte den Nachteil, daß sich an den Wänden der Kanäle, insbesondere an den Wänden eines aus keramischem Werkstoff bestehenden, die Heizspirale aufnehmenden Rohres, Kalkablagerungen absetzen, durch die der Querschnitt der Kanäle von Zeit zu Zeit immer weiter verengt wird, was schließlich zur Zerstörung des Gerätes führt.In known devices of this type, it has been shown that there is often insufficient insulation between the in the to be heated Water flow lying heating coil and the water flowing through, channels containing housing is present. Furthermore, the well-known Devices have the disadvantage that on the walls of the channels, in particular on the walls of a ceramic material, the pipe receiving the heating coil, deposits of limescale through which the cross-section of the channels increases from time to time Time is narrowed more and more, which ultimately leads to the destruction of the device.
Der Neuerung liegt die Aufgabe zugrunde, einen Heißwasser-Durchlauferhitzer derin Betracht kommenden Art in der Weise zu verbessern, daß eine lange Lebensdauer des Gerätes gewährleistet ist und insbesondere Kalkablagerungen im die Heizspirale enthaltenden Kanal vermieden werden.The innovation is based on the task of a hot water instantaneous water heater the type under consideration in such a way that a long service life of the device is ensured and in particular limescale deposits in the channel containing the heating coil are avoided.
Diese Aufgabe wird gemäß der Neuerung dadurch gelöst, daß das die Heizspirale enthaltende, dünnwandig ausgebildete Rohr an seiner Außenseite mit das Rohr in gleirhmäßigem Abstand von der Wand des Gehäusekanals haltenden und den Spalt abdichtenden, elastischen Abstands- und Zentrierrippen versehen ist, und daß das mit den Rippen versehene Rohr aus einem hochwarmfesten Kunststoff mit glatter Oberfläche besteht. Vorzugsweise besteht das Kunststoffrohr aus Polytetrafluoräthylen bzw. Copolymeren des Tetrafluoräthylens und Hexafluorpropylens.This object is achieved according to the innovation in that the thin-walled tube containing the heating coil is attached its outside with the pipe at an equal distance from the wall of the housing channel and sealing the gap, elastic spacing and centering ribs is provided, and that the tube provided with the ribs is made of a highly heat-resistant Plastic with a smooth surface is made. The plastic pipe is preferably made of polytetrafluoroethylene or copolymers of tetrafluoroethylene and hexafluoropropylene.
• · ι· ■ ■ ·• · ι · ■ ■ ·
• ·• ·
Der Gegenstand der Neuerung ist in der beigefügten Zeichnung anhand eines bevorzugten Ausführungsbeispiels schematisch dargestellt, welches nachstehend im einzelnen wie folgt beschrieben ist.The subject of the innovation is in the attached drawing schematically based on a preferred embodiment shown, which is described below in detail as follows.
Das aus einem geeigneten Kunststoff bestehende Gehäuse 11 enthält den Einlaßkanal 12 und den Auslaßkanal 13, für das durch das Gerät hindurchströmende, zu erhitzende Wasser. Das Ende des Einlaßkanals 12 mündet in den die Heizspirale 14 enthaltenden Kanal 15, welcher mit einem Rohr 16 aus vorzugsweise Polytetrafluoräthylen ausgekleidet ist. Somit liegt die Heizspirale 14 im Inneren des Kunststoffrohres 16. Da der Werkstoff des Kunststoffrohres 16 weitgehend wärmeunempfindlich ist, hat die stromdurchflossene Heizspirale 14 keine schädlichen Auswirkungen auf das Rohrmaterial. Da die Oberfläche des Kunststoffrohres 16 außerordentlich glatt ist und für andere Substanzen keine Affinität zur Ablagerung insbesondere von Kalk zeigt, kann sich im Inneren des Rohres kein Kalk ansetzen. Das Kunststoffrohr 16 kann relativ dünnwandig ausgebildet sein, ohne daß die Gefahr besteht, daß es dadurch bedingt Verformungen erleidet. Um zu vermeiden, daß Wasser in den SpaltThe housing 11 made of a suitable plastic contains the inlet channel 12 and the outlet channel 13, for the Water to be heated flowing through the device. The end of the inlet channel 12 opens into the heating coil 14 containing channel 15, which is lined with a tube 16 preferably made of polytetrafluoroethylene. Thus lies the Heating coil 14 inside the plastic tube 16. Since the Material of the plastic tube 16 largely insensitive to heat is, the current-carrying heating coil 14 has no harmful Effects on the pipe material. Since the surface of the plastic pipe 16 is extremely smooth and for If other substances show no affinity for the deposition of lime in particular, no lime can build up inside the pipe. The plastic pipe 16 can be made relatively thin-walled without the risk of it being deformed as a result. To avoid getting water into the gap
17 zwischen dem Kanal 15 und der Aussenwand des Rohres 16 eindringt, sind vorzugsweise an beiden Enden des Rohres Ringrippen17 penetrates between the channel 15 and the outer wall of the pipe 16, are preferably annular ribs at both ends of the tube
18 angeordnet, die für eine entsprechende Abdichtung und zugleich Zentrierung des Kunststoffrohres 16 sorgen. Überdies ist durch den luftgefüllten Spalt 17 eine weitere Isolation gegeben, die sich vorteilhaft auswirkt.18 arranged, which ensure a corresponding seal and at the same time centering of the plastic pipe 16. Besides is a further insulation through the air-filled gap 17 given, which has a beneficial effect.
Als ein im besonderen Maße geeigneter Kunststoff für das die Heizspirale 14 enthaltende Rohr 16 hat sich, wie jüngste Versuche ergeben haben, Polyvinylidenfluorid erwiesen.As a particularly suitable plastic for the tube 16 containing the heating coil 14 has proven, as recent attempts have shown polyvinylidene fluoride.
W/RoW / Ro
Claims (2)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19797916786 DE7916786U1 (en) | 1979-06-11 | 1979-06-11 | ELECTRICALLY HEATED HOT WATER CURRENT HEATER |
GB8015776A GB2051322B (en) | 1979-06-11 | 1980-05-13 | Electrical continous flow water heater |
NZ19384780A NZ193847A (en) | 1979-06-11 | 1980-05-27 | Electrical continuous flow water heater |
AU59128/80A AU536646B2 (en) | 1979-06-11 | 1980-06-06 | Electrically heated continuous flow water heater |
JP7759380A JPS567934A (en) | 1979-06-11 | 1980-06-09 | Device for electrically heating continuous water flow |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19797916786 DE7916786U1 (en) | 1979-06-11 | 1979-06-11 | ELECTRICALLY HEATED HOT WATER CURRENT HEATER |
Publications (1)
Publication Number | Publication Date |
---|---|
DE7916786U1 true DE7916786U1 (en) | 1979-09-13 |
Family
ID=6704793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19797916786 Expired DE7916786U1 (en) | 1979-06-11 | 1979-06-11 | ELECTRICALLY HEATED HOT WATER CURRENT HEATER |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS567934A (en) |
AU (1) | AU536646B2 (en) |
DE (1) | DE7916786U1 (en) |
GB (1) | GB2051322B (en) |
NZ (1) | NZ193847A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9112437U1 (en) * | 1991-10-05 | 1991-11-28 | Leiber, Helmut, 4150 Krefeld, De | |
DE4410067A1 (en) * | 1994-03-23 | 1995-10-05 | Kulmbacher Klimageraete | Through-flow heater or heat exchanger |
DE102018207112A1 (en) * | 2018-05-08 | 2019-11-14 | Bosch Termotecnologia S.A. | Heating device for heating a fluid |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0649534Y2 (en) * | 1986-07-23 | 1994-12-14 | 横河電機株式会社 | Transport system |
GB2340590A (en) * | 1998-08-14 | 2000-02-23 | Rosecharm Limited | Electric flow boiler |
-
1979
- 1979-06-11 DE DE19797916786 patent/DE7916786U1/en not_active Expired
-
1980
- 1980-05-13 GB GB8015776A patent/GB2051322B/en not_active Expired
- 1980-05-27 NZ NZ19384780A patent/NZ193847A/en unknown
- 1980-06-06 AU AU59128/80A patent/AU536646B2/en not_active Ceased
- 1980-06-09 JP JP7759380A patent/JPS567934A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9112437U1 (en) * | 1991-10-05 | 1991-11-28 | Leiber, Helmut, 4150 Krefeld, De | |
DE4410067A1 (en) * | 1994-03-23 | 1995-10-05 | Kulmbacher Klimageraete | Through-flow heater or heat exchanger |
DE102018207112A1 (en) * | 2018-05-08 | 2019-11-14 | Bosch Termotecnologia S.A. | Heating device for heating a fluid |
Also Published As
Publication number | Publication date |
---|---|
AU5912880A (en) | 1980-12-18 |
GB2051322A (en) | 1981-01-14 |
GB2051322B (en) | 1983-04-13 |
AU536646B2 (en) | 1984-05-17 |
JPS567934A (en) | 1981-01-27 |
NZ193847A (en) | 1982-12-21 |
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