DE1118904B - Electrically heated water heater - Google Patents

Electrically heated water heater

Info

Publication number
DE1118904B
DE1118904B DEF29327A DEF0029327A DE1118904B DE 1118904 B DE1118904 B DE 1118904B DE F29327 A DEF29327 A DE F29327A DE F0029327 A DEF0029327 A DE F0029327A DE 1118904 B DE1118904 B DE 1118904B
Authority
DE
Germany
Prior art keywords
helix
channel
electrically heated
water heater
heated water
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.)
Pending
Application number
DEF29327A
Other languages
German (de)
Inventor
Paul Franz Forbach
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.)
Forbach GmbH and Co KG
Original Assignee
Forbach GmbH and Co KG
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 Forbach GmbH and Co KG filed Critical Forbach GmbH and Co KG
Priority to DEF29327A priority Critical patent/DE1118904B/en
Publication of DE1118904B publication Critical patent/DE1118904B/en
Pending 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)
  • Resistance Heating (AREA)

Description

Elektrisch beheizter Durchlauferhitzer Die Erfindung bezieht sich auf elektrisch beheizte Durchlauferhitzer, bei denen der Heizleiter unisoliert in einem vom Nutzwasser durchflossenen Kanal liegt.Electrically heated water heater The invention relates to to electrically heated instantaneous water heaters, in which the heating conductor is uninsulated in a canal through which the industrial water flows.

Bei einer bekannten Ausführungsform eines derartigen Geräts ist der Heizleiter gewendelt, und die Wendel liegt ungespannt oder leicht gespannt in dem mit Kreisquerschnitt ausgeführten Kanal. Dabei treten folgende unangenehme Erscheinungen auf: 1. Die Wendel bewegt sich unter der Kraft des durchlaufenden Wassers und erzeugt dabei surrende oder klappernde Geräusche.In a known embodiment of such a device is the Coiled heating conductor, and the coil lies either untensioned or slightly tensioned in it with circular cross-section channel. The following unpleasant phenomena occur on: 1. The coil moves under the force of the flowing water and creates whirring or rattling noises.

2. Die Wendel wird durch das durchströmende Wasser in einer Richtung gezogen, so daß sich an dem in dieser Richtung liegenden Ende der Wendel die Windungen einander nähern und Windungskurzschlüsse erzeugen oder daß aber dadurch zumindest eine Leistungskonzentration am Wendelende eintritt, die eine Erhöhung der Heizleitertemperatur, verbunden mit einer verstärkten Verkalkungsgefahr mit sich bringt.2. The helix is moved in one direction by the water flowing through it pulled so that at the end of the helix lying in this direction the turns approach each other and produce winding short circuits or that at least as a result a power concentration occurs at the end of the filament, which increases the heating conductor temperature, associated with an increased risk of calcification.

3. Die Wendel kann speziell in senkrechten Kanälen bei unter Umständen auftretenden kurzzeitigen Überhitzungen zusammenfallen, wenn sie auch nur einen kurzen Moment zum Erweichen gebracht wird.3. The helix can be specially designed in vertical channels under certain circumstances occurring short-term overheating coincide if they only have one brief moment is brought to soften.

4. Ein großer Teil der Heizleistung der Wendel wird infolge großflächiger Berührung mit der Kanalwandung zu deren Aufheizung verwendet.4. A large part of the heating output of the filament is larger as a result Contact with the duct wall used to heat it up.

Diese Nachteile werden nach der Erfindung durch die Kombination folgender Merkmale beseitigt: a) Die Wendel besitzt eine von der kreisrunden Form des Kanalquerschnitts abweichende mehreckige, vorzugsweise dreieckige Gestalt, die die Kanalwand nur punktweise berührt; b) die Ecken der Wendel sind durch eine relativ dünne, die Kanalwand überziehende Glasur an der Kanalwand befestigt, oder die Ecken der Wendel sind in gewindeartig ausgeführten Erhöhungen bzw. Vertiefungen der Kanalwand gehalten.These disadvantages are made according to the invention by the combination of the following Features eliminated: a) The helix has one of the circular shape of the channel cross-section different polygonal, preferably triangular shape that only points the duct wall touched; b) the corners of the helix are covered by a relatively thin one that covers the duct wall Glaze attached to the duct wall, or the corners of the helix are in thread-like fashion executed elevations or depressions of the channel wall held.

Das erste Merkmal a) dieser Kombination, eine Wendel mehreckig auszuführen und diese in ein Rohr in der Weise einzuschieben, daß eine nur punktweise Berührung der Rohrinnenwand entsteht, ist an sich bei Quarzrohrstrahlern für Strahlungsheizung bekannt. Sinn dieser Maßnahme bei Ouarzrohrstrahlern ist jedoch, die Berührungsfläche zwischen Wendel und Quarzrohr und damit die Außentemperatur des Rohres so klein wie möglich zu halten, um einen guten Wirkungsgrad bei stärkerer Bewegung der den Quarzrohrstrahlerumgebenden Luft zu erzielen. Dieser Gesichtspunkt spielt bei der Erfindung keine Rolle; hier geht es vor allem darum, eine Möglichkeit zu finden, die es gestattet, die Lage der Wendel eindeutig zu fixieren, ohne daß die Wärmeabgabe der Wendel an das den Heizkanal durchströmende Wasser gestört wird und die Gefahr für eine Überhitzung der Wendel besteht, wodurch die Kombination des Merkmals a) mit dem Merkmal b) erzielt wird.The first feature a) of this combination is to make a helix polygonal and push it into a tube in such a way that it only touches it point by point The inner wall of the pipe is created in itself in the case of quartz pipe radiators for radiant heating known. The point of this measure with Ouarz tube radiators is, however, the contact surface between the helix and the quartz tube and thus the outside temperature of the tube is so small as possible to keep a good efficiency with stronger movement of the den To achieve air surrounding the quartz tube heater. This point of view plays a role in the Invention does not matter; the main thing here is to find a way which allows the position of the coil to be clearly fixed without releasing heat the coil to the water flowing through the heating channel is disturbed and the danger for overheating of the filament, which means that the combination of feature a) with feature b) is achieved.

Zur näheren Erläuterung der Erfindung zeigen die Abbildungen verschiedene Ausführungsformen.To explain the invention in more detail, the figures show various Embodiments.

Abb. 1 zeigt eine Dreieckswicklung 1, die im Kanalkörper 2 z. B. durch eine Glasur oder Emailschicht 3 gehaltert ist. Das Wasser kann die Wicklung außer an den punktförmigen Befestigungsstellen allseitig umspülen.Fig. 1 shows a triangular winding 1, which in the channel body 2 z. B. by a glaze or enamel layer 3 is held. The water can save the winding Rinse around on all sides at the punctiform fastening points.

In Abb. 2 ist eine Wicklung 4 mit Zweieckquerschnitt (d. h. elliptischem Querschnitt) dargestellt, die hier, wie der Schnitt A-B zeigt, an ihren Eckpunkten (d. h. Hauptscheiteln) in den gewindeartigen Vertiefungen 5 der Kanalwand gehalten wird.In Fig. 2 there is a winding 4 with a two-cornered cross-section (i.e. elliptical Cross-section), which here, as section A-B shows, at their corner points (i.e. main vertices) held in the thread-like depressions 5 of the canal wall will.

Claims (1)

PATENTANSPRUCH: Elektrisch beheizter Durchlauferhitzer, in dessen vom Nutzwasser durchflossenem Kanal kreisförmigen Querschnitts die Heizwendel unisoliert angeordnet ist, gekennzeichnet durch die Kombination folgender Merkmale: a) Die Wendel besitzt eine von der kreisrunden Form des Kanalquerschnitts abweichende mehreckige, vorzugsweise dreieckige Gestalt, die die Kanalwand nur punktweise berührt; b) die Ecken der Wendel sind durch eine relativ dünne, die Kanalwand überziehende Glasur an der Kanalwand befestigt, oder die Ecken der Wendel sind in gewindeartig ausgeführten Erhöhungen bzw. Vertiefungen der Kanalwand gehalten. In Betracht gezogene Druckschriften: Deutsches Gebrauchsmuster Nr. 1775 687.PATENT CLAIM: Electrically heated water heater in which the circular cross-section channel through which the utility water flows, the heating coil is uninsulated is arranged, characterized by the combination of the following features: a) The The helix has a shape that differs from the circular shape of the channel cross-section polygonal, preferably triangular shape that only touches the duct wall at points; b) the The corners of the helix are covered by a relatively thin glaze that covers the canal wall attached to the duct wall, or the corners of the helix are designed in a thread-like manner Elevations or depressions of the channel wall held. Considered publications: German utility model No. 1775 687.
DEF29327A 1959-09-07 1959-09-07 Electrically heated water heater Pending DE1118904B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF29327A DE1118904B (en) 1959-09-07 1959-09-07 Electrically heated water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF29327A DE1118904B (en) 1959-09-07 1959-09-07 Electrically heated water heater

Publications (1)

Publication Number Publication Date
DE1118904B true DE1118904B (en) 1961-12-07

Family

ID=7093257

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF29327A Pending DE1118904B (en) 1959-09-07 1959-09-07 Electrically heated water heater

Country Status (1)

Country Link
DE (1) DE1118904B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430160A1 (en) * 1978-06-29 1980-01-25 Bulten Kanthal Ab ELECTRIC RESISTANCE FLUID HEATER IN PORC-EPIC COIL
DE102015206925A1 (en) * 2015-04-16 2016-10-20 BSH Hausgeräte GmbH Heating coil for a water heater

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1775687U (en) * 1958-06-20 1958-10-16 Berliner Gluehlampen Werk Veb QUARTZ TUBE ELEMENTS FOR RADIANT HEATING.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1775687U (en) * 1958-06-20 1958-10-16 Berliner Gluehlampen Werk Veb QUARTZ TUBE ELEMENTS FOR RADIANT HEATING.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430160A1 (en) * 1978-06-29 1980-01-25 Bulten Kanthal Ab ELECTRIC RESISTANCE FLUID HEATER IN PORC-EPIC COIL
DE102015206925A1 (en) * 2015-04-16 2016-10-20 BSH Hausgeräte GmbH Heating coil for a water heater

Similar Documents

Publication Publication Date Title
DE2849266A1 (en) ELECTRIC RADIATOR FOR FLUID MEDIA
DE1118904B (en) Electrically heated water heater
DE2603706B2 (en) Electric convection heater
DE2850111C2 (en)
DE644532C (en) Electrode steam heating element for heating rooms, stoves, water heaters, etc. like
AT92492B (en) Control device for electrically heated steam boilers.
DE3337900A1 (en) TEMPERATURE PROBE
DE715344C (en) Device for humidifying room air
DE1844075U (en) ELECTRIC FLOW HEATER WITH CERAMIC HEATING RESISTOR.
DE7916786U1 (en) ELECTRICALLY HEATED HOT WATER CURRENT HEATER
DE800248C (en) Smoke heater
AT225835B (en) Fixing heater for forming yarns made from synthetic fabrics
DE517090C (en) Device for heating and keeping fluids warm in aquariums, terrariums and similar devices
DE324272C (en) Electric heating and cooking device in the form of a submerged body
DE372659C (en) Regulating device for electrodes for heating steam boilers or the like.
DE2128157A1 (en) Radiators for heating a stream of air, especially for hair dryers
DE591627C (en) Electric tubular heater
DE1008890B (en) Electric space heater with heat transfer by radiation and convection
DE369510C (en) Electrically heated torch for singeing yarn
DE749662C (en) Rod-shaped, indirectly heated cathode for Braun tubes
DE309812C (en)
AT162271B (en) Electric hotplate with air cooling
CH514969A (en) Electric heater
DE1295171B (en) Container for electric hot water storage tank
DE2449454C2 (en) Electric radiator