DE1254781B - Electrically heated water heater for three-phase connection - Google Patents

Electrically heated water heater for three-phase connection

Info

Publication number
DE1254781B
DE1254781B DE1961V0020704 DEV0020704A DE1254781B DE 1254781 B DE1254781 B DE 1254781B DE 1961V0020704 DE1961V0020704 DE 1961V0020704 DE V0020704 A DEV0020704 A DE V0020704A DE 1254781 B DE1254781 B DE 1254781B
Authority
DE
Germany
Prior art keywords
heating
channels
star point
water heater
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.)
Withdrawn
Application number
DE1961V0020704
Other languages
German (de)
Inventor
Dipl-Kfm Franz Wilhelm
Rolf Woelz
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.)
Vaillant GmbH
Original Assignee
Joh Vaillant GmbH and Co
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 Joh Vaillant GmbH and Co filed Critical Joh Vaillant GmbH and Co
Priority to DE1961V0020704 priority Critical patent/DE1254781B/en
Publication of DE1254781B publication Critical patent/DE1254781B/en
Withdrawn legal-status Critical Current

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)
  • General Induction Heating (AREA)

Description

Elektrisch beheizter Durchlauferhitzer für Drehstromanschluß In der Hauptpatentanmeldung V 19651 VIIId/21 h (deutsche Auslegeschrift 1238 129) ist ein elektrischer Durchlauferhitzer für Drehstromanschluß beschrieben, bei dem für jede Drehstromphase zwei in benachbarten Heizkanälen angeordnete und zueinander parallelgeschaltete Heizwendeln vorgesehen und die sechs Heizwendelenden zu einem Sternpunkt zusammengeschaltet sind. Bei einer solchen Schaltung können die Heizkanäle, deren Heizwendel an verschiedenen Phasen unmittelbar im Wasser liegen, im Bereich des Sternpunktes durch einen kurzen Verbindungskanal miteinander verbunden werden, indem kein Spannungsgefälle vorhanden ist. Das hat den Vorteil, daß keine elektrolytischen Zersetzungserscheinungen an den Heizwendelenden bzw. den Anschlußschrauben auftreten können.Electrically heated instantaneous water heater for three-phase connection In the main patent application V 19651 VIIId / 21 h (German Auslegeschrift 1238 129) an electric water heater for three-phase connection is described, in which two heating coils arranged in adjacent heating channels and connected in parallel to one another are provided for each three-phase current phase and the six heating coil ends to a star point are interconnected. With such a circuit, the heating channels, the heating coils of which are located directly in the water on different phases, can be connected to one another in the area of the star point by a short connecting channel in which there is no voltage gradient. This has the advantage that no electrolytic decomposition phenomena can occur on the heating coil ends or the connection screws.

Der Erfindung liegt die Aufgabe zugrunde, einen Durchlauferhitzer nach der Hauptpatentanmeldung unter Beibehaltung des geschilderten Vorteils wahlweise mit voller oder mit verminderter Leistungsaufnahme zu betreiben.The invention is based on the object of a water heater according to the main patent application while maintaining the advantage described optionally to operate with full or with reduced power consumption.

Das wird erfindungsgemäß dadurch ermöglicht, daß die Heizwendeln, die in den äußeren, an die Widerstandskanäle sich anschließenden Heizkanälen liegen, einzeln oder gemeinsam im Sternpunkt abschaltbar sind. Durch die Abschaltung dieser äußeren Heizwendel bleibt die Spannungslosigkeit der im Bereich des Sternpunktes liegenden Verbindungskanäle erhalten, die Leistungsaufnahme kann jedoch um ein Sechstel oder ein Drittel vermindert werden.This is made possible according to the invention in that the heating coils, which are located in the outer heating channels adjoining the resistance channels, can be switched off individually or together at the star point. By turning this off outer heating coil remains the de-energized in the area of the star point lying connection channels, the power consumption can, however, by a sixth or a third can be reduced.

In der Zeichnung ist ein Ausführungsbeispiel dargestellt, das nachfolgend beschrieben wird.In the drawing, an embodiment is shown, which is shown below is described.

Der wasserführende Kanal des Elektro-Durchlauferhitzers besteht aus den vor- und nachgeschalteten Widerstandskanälen 1 und 2 sowie aus den die Heizwendel enthaltenden Kanalteilen 3/3', 4/4' und 5/5'.The water-carrying channel of the electric instantaneous water heater consists of the upstream and downstream resistance channels 1 and 2 as well as the channel parts 3/3 ', 4/4' and 5/5 'containing the heating coil.

Die Stromzuführung erfolgt über drei Phasen R, S und T. Jede Phase verzweigt sich in zwei Heizwendeln 6/6', 7/7' und 8/8', die damit parallel geschaltet sind. Zwischen den Sternpunktanschlüssen 9' der Wendel 6' und 10 der Wendel 7 liegt ein kurzer spannungsfreier Verbindungskanal 14. Ebenso liegt zwischen den Sternpunktanschlüssen 10' und 11 ein ebensolcher Verbindungskanal 15. Power is supplied via three phases R, S and T. Each phase branches into two heating coils 6/6 ', 7/7' and 8/8 ', which are thus connected in parallel. A short, stress-free connection channel 14 is located between the star point connections 9 ′ of the helix 6 ′ and 10 of the helix 7. A similar connection channel 15 is also located between the star point connections 10 ′ and 11.

Die Sternpunktanschlüsse 9 der ersten Heizwendel 6 und 11' der letzten Heizwendel 8' sind vom Sternpunkt O durch Schalter 12, 13 einzeln oder gemeinsam abschaltbar. Man kann dadurch die z. B. 18 kW betragende Leistungsaufnahme auf 15 bzw.12 kW vermindern, ohne daß in den Verbindungskanälen 14, 15 ein Spannungsgefälle auftritt. Das würde jedoch der Fall sein, wenn einer der anderen Sternpunktanschlüsse 9',10, 10' oder 11 vom Sternpunkt abgeschaltet werden würde.The star point connections 9 of the first heating coil 6 and 11 'of the last heating coil 8' can be switched off from the star point O by switches 12, 13 individually or together. You can thereby the z. B. reduce power consumption of 18 kW to 15 or 12 kW without a voltage gradient occurring in the connecting channels 14, 15. However, that would be the case if one of the other star point connections 9 ', 10, 10' or 11 were switched off from the star point.

Claims (1)

Patentanspruch: Elektrisch beheizter Durchlauferhitzer für Drehstromanschluß mit in hintereinandergeschalteten Heizkanälen angeordneten, unmittelbar vom Wasser umspülten Heizwendeln und den Heizkanälen vor- und nachgeschalteten, einen elektrischen Wassersäulenwiderstand bildenden Widerstandskanälen, bei dem für jede Drehstromphase zwei in benachbarten Heizkanälen angeordnete und zueinander parallelgeschaltete Heizwendeln vorgesehen und die sechs Heizwendelenden zu einem Sternpunkt zusammengeschaltet und Heizkanäle, deren Heizwendeln an verschiedenen Phasen liegen, im Bereich des Sternpunktes miteinander verbunden sind, nach Patentanmeldung V 19651 VIIId/21 h (deutsche Auslegeschrift 1238 129), d a d u r c h g e k e n n z e i c h n e t, daß die Heizwendeln (6, 8'), die in den äußeren, an die Widerstandskanäle (1, 2) sich anschließenden Heizkanälen (3, 5') liegen, einzeln oder gemeinsam im Sternpunkt (O) abschaltbar sind.Claim: Electrically heated instantaneous water heater for three-phase current connection with heating coils arranged in series-connected heating channels, immediately surrounded by water, and resistance channels connected upstream and downstream of the heating channels, forming an electrical water column resistance, in which two heating coils arranged in adjacent heating channels and connected in parallel to each other are provided for each three-phase phase and the six Heating coil ends interconnected to form a star point and heating channels whose heating coils are on different phases are connected to one another in the area of the star point, according to patent application V 19651 VIIId / 21 h (German Auslegeschrift 1238 129), characterized in that the heating coils (6, 8 ') which lie in the outer, the resistance channels (1, 2) subsequent heating channels (3, 5 ') can be switched off individually or together in the star point (O).
DE1961V0020704 1961-05-25 1961-05-25 Electrically heated water heater for three-phase connection Withdrawn DE1254781B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1961V0020704 DE1254781B (en) 1961-05-25 1961-05-25 Electrically heated water heater for three-phase connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1961V0020704 DE1254781B (en) 1961-05-25 1961-05-25 Electrically heated water heater for three-phase connection

Publications (1)

Publication Number Publication Date
DE1254781B true DE1254781B (en) 1967-11-23

Family

ID=7578694

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1961V0020704 Withdrawn DE1254781B (en) 1961-05-25 1961-05-25 Electrically heated water heater for three-phase connection

Country Status (1)

Country Link
DE (1) DE1254781B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907435A1 (en) * 1988-03-15 1989-09-28 Vaillant Joh Gmbh & Co Electrically heated through-flow water heater
AT395483B (en) * 1989-01-13 1993-01-25 Vaillant Gmbh Purely electrically heated instantaneous heater with a device for determining the throughput of water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907435A1 (en) * 1988-03-15 1989-09-28 Vaillant Joh Gmbh & Co Electrically heated through-flow water heater
AT395483B (en) * 1989-01-13 1993-01-25 Vaillant Gmbh Purely electrically heated instantaneous heater with a device for determining the throughput of water

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee