DE4307146C1 - Screw-in immersion heater for liquid medium, e.g. milk - has solder connections protected by plastics layer covered by chrome-nickel-steel layer - Google Patents

Screw-in immersion heater for liquid medium, e.g. milk - has solder connections protected by plastics layer covered by chrome-nickel-steel layer

Info

Publication number
DE4307146C1
DE4307146C1 DE19934307146 DE4307146A DE4307146C1 DE 4307146 C1 DE4307146 C1 DE 4307146C1 DE 19934307146 DE19934307146 DE 19934307146 DE 4307146 A DE4307146 A DE 4307146A DE 4307146 C1 DE4307146 C1 DE 4307146C1
Authority
DE
Germany
Prior art keywords
screw
chrome
solder connections
nickel
immersion heater
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 - Lifetime
Application number
DE19934307146
Other languages
German (de)
Inventor
Erich Hillinger
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.)
Tuerk and Hillinger GmbH
Original Assignee
Tuerk and Hillinger GmbH
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 Tuerk and Hillinger GmbH filed Critical Tuerk and Hillinger GmbH
Priority to DE19934307146 priority Critical patent/DE4307146C1/en
Application granted granted Critical
Publication of DE4307146C1 publication Critical patent/DE4307146C1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H05B3/02—Details
    • H05B3/04—Waterproof or air-tight seals for heaters
    • 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
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • 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
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters

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

The immersion heater uses at least one tubular heating element supported by a screw-in nipple (1) with an external fixing thread (2) and openings (6) for the ends (3A,3B) of the heating elements (3) in its base (4). A recess (5) provided by the base is filled with plastics, the plastics layer covered by a chrome nickel steel layer. Pref. the surface of the chrome nickel steel layer has a profiled surface. USE/ADVANTAGE - In dairy industry. Solder connections are protected against aggressive medium.

Description

Die Erfindung betrifft einen Einschraubheizkörper gemäß dem Oberbegriff des Patentanspruchs 1, bei dem ein oder mehrere Rohrheizkörper in einem gemeinsamen, sich zur Anschlußseite hin öffnenden topfförmigen Einschraubnippel angeordnet und mit diesem verlötet sind.The invention relates to a screw-in heater according to the The preamble of claim 1, in which one or more Tubular heater in a common, facing the connection side arranged opening cup-shaped screw-in nipple and are soldered to it.

Bekannte Heizkörper dieser Art weisen, wie beispielsweise die DE-GM 17 04 675 offenbart, Einschraubnippel auf, die mit einem eingesenkten Boden versehen sind, um die Montage des Rohrheizkörpers und die Zugänglichkeit der Lötstellen zu verbessern. Known radiators of this type, such as DE-GM 17 04 675 discloses screw-in nipples with are provided with a sunken floor in order to mount the Tubular radiator and the accessibility of the solder joints improve.  

Diese Art von Heizkörpern ist sehr preiswert in der Her­ stellung, weist jedoch das Problem auf, daß die Lötstel­ len, insbesondere das dort befindliche Lot, den Einwir­ kungen des zu erwärmenden Mediums ausgesetzt sind. Ent­ hält dieses Medium aber aggressive Bestandteile oder ist es insgesamt aggressiv, wird das Lot zersetzt und damit der Einschraubheizkörper undicht. Ähnliches geschieht, wenn der Heizkörper aggressiven Reinigungsmitteln ausge­ setzt wird, wie dies beispielsweise in Molkereieinrich­ tungen od. dgl. der Fall ist.This type of radiator is very inexpensive to manufacture position, but has the problem that the solder len, in particular the solder located there, the ent the medium to be heated. Ent does this medium hold or is aggressive components if it is aggressive overall, the solder is decomposed and thus the screw-in heater is leaking. Similar things happen if the radiator is exposed to aggressive cleaning agents is set, such as in dairy or the like. is the case.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen Einschraubheizkörper zu schaffen, mit dem bei geringem technischen Mehraufwand erreicht wird, daß die Lötstel­ len sicher gegen alle durchlaufenden aggressiven Medien geschützt sind.The present invention is therefore based on the object Screw-in radiator to create with the low technical additional effort is achieved that the solder len safely against all aggressive media are protected.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst.This task is characterized by the characteristics of claim 1 solved.

Der Gegenstand der Erfindung ist in einem Ausführungsbei­ spiel in der Zeichnung dargestellt und nachfolgend be­ schrieben. Es zeigtThe object of the invention is in one embodiment game shown in the drawing and below be wrote. It shows

Fig. 1 einen Längsschnitt durch den Einschraub­ heizkörper und Fig. 1 shows a longitudinal section through the screw-in radiator and

Fig. 2 eine Draufsicht auf den Heizkörper gemäß Fig. 1. FIG. 2 shows a top view of the heating element according to FIG. 1.

Der dargestellte Einschraubheizkörper besteht aus einem, beispielsweise aus Chrom-Nickel-Stahl im Preßverfahren hergestellten topfförmigen Einschraubnippel 1 mit Außen­ gewinde 2 und aus einem Rohrheizkörper 3, dessen beide Enden 3A und 3B durch den Nippel 1 hindurchgeführt und an den Durchtrittstellen 6 mit dem Boden 4 des Nippels hartverlötet sind.The screw-in heating element shown consists of a cup-shaped screw-in nipple 1 with an external thread 2 , for example made of chrome-nickel steel in the pressing process, and a tubular heating element 3 , both ends 3 A and 3 B of which are passed through the nipple 1 and at the passage points 6 with the Bottom 4 of the nipple are brazed.

Der Boden 4 des Nippels weist eine sich über die ganze Fläche des Bodens erstreckende Einsenkung 5 auf, die nach dem Hartlötvorgang mit flüssigem Kunststoff 7 aus­ gegossen wird, der auch die Hohlräume an den Durchtritt­ stellen der Heizkörperenden 3A und 3B ausfüllt. Nach dem Ausgießvorgang wird eine, mit Durchlaßbohrungen 8 versehene, Abdeckscheibe 9 aus Chrom-Nickel-Stahl auf die Kunststoffschicht 7, die aus Silikon oder Epoxidmas­ sen bestehen kann, aufgedrückt, wobei der Kunststoff an den Durchtrittstellen des Rohrheizkörpers 3 durch die Ab­ deckscheibe 9 Wülste bildet. Zu diesem Zweck sind die Durchtrittsbohrungen etwas größer als der Durchmesser des Rohrheizkörpers 3.The bottom 4 of the nipple has a depression 5 extending over the entire surface of the bottom, which is poured out after the brazing process with liquid plastic 7 , which also fills the cavities at the passage of the radiator ends 3 A and 3 B. After the pouring process, a cover plate 9 made of chromium-nickel steel, provided with through-holes 8 , is pressed onto the plastic layer 7 , which may be made of silicone or epoxidmas, the plastic at the passage points of the tubular heater 3 through the cover plate 9 beads forms. For this purpose, the through holes are somewhat larger than the diameter of the tubular heater 3 .

Beim Aushärten des zunächst flüssigen Kunststoffs tritt nun eine innige, dichte Verbindung zwischen Nippel 1, Rohrheizkörper 3 und Abdeckscheibe 9 ein. Diese Verbin­ dung kann gegebenenfalls noch dadurch verstärkt werden, daß die Oberfläche der Abdeckscheibe 9 geriffelt oder die Scheibe mit zusätzlichen Bohrungen oder Ausnehmungen versehen wird. When the initially liquid plastic hardens, an intimate, tight connection between nipple 1 , tubular heater 3 and cover plate 9 now occurs. This connec tion can be reinforced if necessary, that the surface of the cover plate 9 corrugated or the disc is provided with additional holes or recesses.

Mit diesem Aufbau ist sichergestellt, daß die Lötver­ bindungen, die ja dem Heizkörper seine mechanische Fe­ stigkeit verleihen, gegenüber dem durchströmenden und zu erwärmenden Medium völlig abgedeckt sind. Auch aggres­ sive Reinigungsmittel können die Lötverbindungen nicht erreichen. Die Abdeckscheibe 9 schützt darüber hinaus auch die Kunststoffschicht 7 gegen mechanische Beschä­ digungen.With this structure it is ensured that the solder connections, which give the heater its mechanical strength, are completely covered with respect to the medium flowing through and to be heated. Even aggressive cleaning agents cannot reach the solder connections. The cover 9 also protects the plastic layer 7 against mechanical damage.

Ergänzend wird hinzugefügt, daß der erfindungsgemäße Aufbau auch bei Einschraubheizkörpern, die mit mehr als einem Rohrheizkörper ausgerüstet sind, Verwen­ dung finden kann.In addition, it is added that the invention Construction also with screw-in radiators with more are equipped as a tubular heater, use can find.

Claims (3)

1. Einschraubheizkörper für flüssige Medien, bei dem ein oder mehrere Rohrheizkörper in einem gemeinsamen, sich zur An­ schlußseite hin öffnenden topfförmigen, mit eingesenktem Boden versehenen Einschraubnippel angeordnet und mit diesem verlötet sind, dadurch gekennzeichnet, daß der Boden (4) an seiner der Anschlußseite abgewandten Seite eine weitere, den ganzen Bereich desselben umfassende Einsenkung (5) aufweist, die mit Kunststoff (7) ausgegossen ist und daß diese Kunststoffschicht (7) mit einer Abdeck­ scheibe (9) aus Chrom-Nickel-Stahl abgedeckt ist. 1. Screw-in radiator for liquid media, in which one or more tubular heaters are arranged in a common, pot-shaped, with a recessed bottom opening screw-in nipple opening to the connection side and soldered to it, characterized in that the bottom ( 4 ) on its the connection side facing away another, the entire area of the same comprehensive depression ( 5 ), which is poured out with plastic ( 7 ) and that this plastic layer ( 7 ) is covered with a cover disc ( 9 ) made of chrome-nickel steel. 2. Einschraubheizkörper nach Anspruch 1, dadurch gekennzeichnet, daß die Abdeckscheibe (7) an ihrer Oberfläche gerif­ felt ist.2. Screw-in heater according to claim 1, characterized in that the cover plate ( 7 ) is gerif felt on its surface. 3. Einschraubheizkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Abdeckscheibe (7) mit zusätzlichen Bohrungen und/oder Ausnehmungen versehen ist.3. Screw-in heater according to claim 1 or 2, characterized in that the cover plate ( 7 ) is provided with additional bores and / or recesses.
DE19934307146 1993-03-06 1993-03-06 Screw-in immersion heater for liquid medium, e.g. milk - has solder connections protected by plastics layer covered by chrome-nickel-steel layer Expired - Lifetime DE4307146C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934307146 DE4307146C1 (en) 1993-03-06 1993-03-06 Screw-in immersion heater for liquid medium, e.g. milk - has solder connections protected by plastics layer covered by chrome-nickel-steel layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934307146 DE4307146C1 (en) 1993-03-06 1993-03-06 Screw-in immersion heater for liquid medium, e.g. milk - has solder connections protected by plastics layer covered by chrome-nickel-steel layer

Publications (1)

Publication Number Publication Date
DE4307146C1 true DE4307146C1 (en) 1994-05-26

Family

ID=6482164

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934307146 Expired - Lifetime DE4307146C1 (en) 1993-03-06 1993-03-06 Screw-in immersion heater for liquid medium, e.g. milk - has solder connections protected by plastics layer covered by chrome-nickel-steel layer

Country Status (1)

Country Link
DE (1) DE4307146C1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1704675A1 (en) * 1967-03-01 1971-05-27 Gruenzweig & Hartmann Extrusion process for the continuous foaming of thermoplastics, in particular styrene polymer, to form profiled bodies

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1704675A1 (en) * 1967-03-01 1971-05-27 Gruenzweig & Hartmann Extrusion process for the continuous foaming of thermoplastics, in particular styrene polymer, to form profiled bodies

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8320 Willingness to grant licenses declared (paragraph 23)
R071 Expiry of right
R071 Expiry of right