DE7916786U1 - ELECTRICALLY HEATED HOT WATER CURRENT HEATER - Google Patents

ELECTRICALLY HEATED HOT WATER CURRENT HEATER

Info

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
Application number
DE19797916786
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19797916786 priority Critical patent/DE7916786U1/en
Publication of DE7916786U1 publication Critical patent/DE7916786U1/en
Priority to GB8015776A priority patent/GB2051322B/en
Priority to NZ19384780A priority patent/NZ193847A/en
Priority to AU59128/80A priority patent/AU536646B2/en
Priority to JP7759380A priority patent/JPS567934A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10Continuous-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
    • F24H1/101Continuous-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
    • F24H1/102Continuous-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
    • F24H1/103Continuous-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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (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)

AnsprücheExpectations 1. Heißwasser-Durchlauferhitzer mit einem die wasserdurchströmten Kanäle enthaltenden Gehäuse, in dessen einem Kanal ein die von elektrischem Strom durchflossene Heizspirale enthaltendes Isolierrohr angeordnet ist, dadurch gekennzeichnet, daß das die Heizspirale (14) enthaltende, dünnwandig ausgebildete Rohr (16) an seiner Außenseite mit das Rohr (16) in gleichmäßigem Abstand von der Wand des Gehäusekanals (15) haltenden und den Spalt (17) abdichtenden, elastischen Abstands- und Zentrierrippen (18) versehen ist, und daß das mit den Rippen (18) versehene Rohr (16) aus einem hochwarmfesten Kunststoff mit glatter Oberfläche besteht.1. Hot water instantaneous water heater with a water flowing through it Housing containing channels, in one channel of which there is a heating coil through which electrical current flows containing insulating tube is arranged, characterized in that the heating coil (14) containing, thin-walled tube (16) on its outside with the tube (16) at an even distance from the wall of the Housing channel (15) holding and the gap (17) sealing, provided elastic spacing and centering ribs (18) and that the tube (16) provided with the ribs (18) is made of a highly heat-resistant plastic with a smooth surface consists. 2. Heißwasser-Durchlauferhitzer nach Anspruch 1, dadurch gekennzeichnet, daß das die Heizspirale enthaltende Rohr (16) aus Polytetrafluoräthylen bzw. Copolymeren des Tetrafluoräthylens und Hexafluorpropylens besteht.2. Hot water instantaneous water heater according to claim 1, characterized in that that the tube (16) containing the heating coil is made of polytetrafluoroethylene or copolymers of tetrafluoroethylene and hexafluoropropylene. 3, Heißwasser-Durchlauferhitzer nach Anspruch 1, dadurch gekennzeichnet, daß das die Heizspirale (14) enthaltende Rohr (16) aus Polyvinylidenfluorid besteht.3, hot water instantaneous water heater according to claim 1, characterized in that that the tube (16) containing the heating coil (14) consists of polyvinylidene fluoride.
DE19797916786 1979-06-11 1979-06-11 ELECTRICALLY HEATED HOT WATER CURRENT HEATER Expired DE7916786U1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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