DEP0039476MA

DEP0039476MA -

Info

Publication number: DEP0039476MA
Authority: DE

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

Tag der Anmeldung: 9. April 1949 Bekanntgemacht am 3. November 1955Registration date: April 9, 1949. Advertised on November 3, 1955

DEUTSCHES PATENTAMTGERMAN PATENT OFFICE

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Die Erfindung bezieht sich auf elektrische Heizgeräte, die zum Erwärmen von Flüssigkeiten evtl. bis zu deren Verdampfungstemperatur bestimmt sind und deren Heizleiter von Heizwiderständen oder von durch die Flüssigkeit den elektrischen Strom sendenden Elektroden gebildet werden. Zweck der Erfindung ist es, ein Gerät zu schaffen, das einfach im Aufbau ist und eine hohe Ausnutzung des zum Erwärmen der Flüssigkeit dienenden elektrischen Stromes ermöglicht.The invention relates to electrical heating devices that may be used to heat liquids. up to their evaporation temperature are determined and their heating conductors by heating resistors or are formed by electrodes which transmit the electrical current through the liquid. The purpose of the invention is to create a device that is simple in construction and has a high degree of utilization of the electrical current used to heat the liquid.

Das angestrebte Ziel wird erfindungsgemäß dadurch erreicht, daß die Elektroden oder der Widerstandsheizleiter unmittelbar in die zu erwärmende Flüssigkeit tauchen und daß den Elektroden oder dem Widerstandsheizleiter Rohrleitungen vor- und/ oder nachgeschaltet sind, welche die Zu- und/oder Ablaufwege der Flüssigkeit oder des Dampfes bilden und welche nach Länge und Querschnitt so bemessen sind, daß der von den Flüssigkeit«- oder Dampf säulen in den Rohrwegen gebildete elektrische Widerstand einen etwaigen Berührungsstrom auf einen für Menschen ungefährlichen Wert begrenzt. Die Flüssigkeitszu- und -ableitungen bestehen selbstverständlich ebenfalls aus isolierendem Werkstoff oder sind innen isoliert. Sie sind im übrigen vornehmlich als Rohre ausgebildet. Dabei ist esThe aim pursued is achieved according to the invention in that the electrodes or the resistance heating conductor immerse directly in the liquid to be heated and that the electrodes or Pipelines are connected upstream and / or downstream of the resistance heating conductor, which connect and / or Form drainage paths of the liquid or the vapor and which according to length and cross-section so are dimensioned so that the electrical generated by the liquid or vapor columns in the pipe paths Resistance limits any contact current to a value that is harmless to humans. The liquid inlet and outlet lines are of course also made of insulating material or are insulated inside. In addition, they are primarily designed as tubes. It is there

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Claims

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possible to attach the latter directly with a liquid ^{gradient to \ r} ei'l) iii (leii or to attach it to the leizleiter support.

For some purposes it is advantageous to form the pipelines rigid, while it is favorable for other areas of application, they to make elastic.

Because a rating in the proposed training If the exercise equipment is dispensable, these are particularly cheap to use if they to be used in different places. I) The idea of being able to use the leizgeräte in a portable manner does not stop there from installing them permanently if necessary, if) Ks there is also the fact that the (ieräte are very versatile are. They can be used as immersion heaters, water heaters, steam generators and as starters and regulators for electrical machines can be used. Finally, it is also possible on the to create hot water bottles based on the same principle from rigid or elastic material.

Some exemplary embodiments of the invention are illustrated in the drawing. Ks shows

Fig. Ι a transportable electrode immersion heater with upstream and downstream resistance tube column,

l'ig. 2 a screw-in electrode immersion heater with upstream resistance tube column, FIG. 3 shows a flow heater with upstream and downstream downstream resistance tube column,

Fig.. | a Dainpfentwieklcr with upstream

Resistance tube column in cooperation with an additional heater, which for further Krhilzeii of the steam coming from the steam generator is used.

The (ieräl according to Fig. 1 ordered from a as Small container formed carrier 1 made of insulating Material, the I leizleiter 2 within the carrier 1 and attached to the carrier 1 Tubes 3. These are in front of or behind the 1 leizleiter 2 and according to cross-section and length like that sized that of the liquid columns within The resistance formed by the pipes to the electric current is a practically insurmountable one Represents obstacle. Therefore, an endangering contact can move from I leizleiter 2 to the line the liquid present in the pipes and an operator do not flow. This (ierät can be used like a known immersion heater by placing it in a larger one with the one to be heated The liquid-filled vessel is immersed and connected to the electrical supply line.

The immersion heating element shown in Fig. 2 is formed by a screw plug 4 made of insulating material with the electrodes 5 and (' as well as the helically wound tube 3 consisting of a rubber hose of the screw plug determined, the vessel in turn being electrically isolated and can be connected via the contact pins 7.

The water heater according to FIG. 3 consists essentially of the helically wound Tube 3, which is made of insulating material and approximately in its middle, the resistance heating conductor iS records. Here, too, the tube 3 forms the upstream or downstream of the heating conductor Routes for the liquid.

The vapor generator shown in Fig. 4 consists of a glass vessel 9 with heating conductor 10 and spirally wound tube 3, which merges into a funnel 11. This can do that Vessel 9 can be filled with the liquid to be heated. The funnel 11 can be by means of Close cap 12, which merges into a tube 13. The latter can be used when operating the device the liquid vapor generated in the vessel escape. If necessary, this can still be be heated further by subsequently attaching a flow heater 14 to the pipe 13, which in turn has the pipes 3 upstream and downstream of the heating conductor and a heating element.

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ι. Electric heating device that works by means of electrodes or resistance heating conductors for heating and vaporizing liquids, characterized in that the electrodes or the resistance heating conductor directly into the liquid to be heated immerse and that the electrodes or the resistance heating conductor pipes upstream and / or downstream, which the inflow and / or outflow of the liquid or the Form steam and which are sized according to length and cross-section that of the Columns of liquid * or vapor in the pipe paths are electric. Resistance one any contact current is limited to a value that is harmless to humans.

2. Apparatus according to claim 1, characterized in that the pipelines are a liquid container upstream and / or downstream, the vessel and the pipelines being made of electrically insulating material or are electrically isolated.

3. Apparatus according to claims 1 and 2, characterized m, characterized in that the pipelines are made of rigid material, for example glass.

4. Apparatus according to claims 1 and 2, characterized in that the pipelines are entirely or partially made of elastic material, for example rubber.

5. Apparatus according to claims τ to 4, characterized in that the electrodes or the Resistance heating conductor in an insulating material, preferably glass, existing Vessel are arranged.

1 sheet of drawings

O 509 578/126 10.55