DE10225949B4 - Electric pipe heating - Google Patents
Electric pipe heating Download PDFInfo
- Publication number
- DE10225949B4 DE10225949B4 DE2002125949 DE10225949A DE10225949B4 DE 10225949 B4 DE10225949 B4 DE 10225949B4 DE 2002125949 DE2002125949 DE 2002125949 DE 10225949 A DE10225949 A DE 10225949A DE 10225949 B4 DE10225949 B4 DE 10225949B4
- Authority
- DE
- Germany
- Prior art keywords
- pipe
- heating
- heating element
- disk
- heater according
- 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 - Fee Related
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
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
Abstract
Elektrische Rohrheizung (1) zum Beheizen des durch ein Rohr (2) strömenden Fluids, bei der mindestens ein Heizelement (4, 5, 6) aus Kunststoff-Widerstandsmaterial im lichten Querschnitt des Rohrs (2) angeordnet ist, dadurch gekennzeichnet, dass, gesehen in Strömungsrichtung (3) des Fluids, axial hintereinander eine Lochscheibe, eine Prallscheibe und eine Siebscheibe angeordnet sind, von denen mindestens eine als Heizelement (4, 5, 6) ausgebildet ist.Electrical pipe heater (1) for heating the fluid flowing through a pipe (2), in which at least one heating element (4, 5, 6) made of plastic resistance material is arranged in the clear cross section of the pipe (2), characterized in that, seen A perforated disk, a baffle disk and a sieve disk are arranged axially one behind the other in the direction of flow (3) of the fluid, at least one of which is designed as a heating element (4, 5, 6).
Description
Die Erfindung betrifft eine elektrische Rohrheizung zum Beheizen des durch ein Rohr strömenden Fluids, bei der mindestens ein Heizelement aus Kunststoff-Widerstandsmaterial im lichten Querschnitt des Rohrs angeordnet ist.The invention relates to an electrical Pipe heater for heating the fluid flowing through a pipe, at least a heating element made of plastic resistance material is arranged in the clear cross section of the tube.
Eine derartige elektrische Rohrheizung
ist beispielsweise durch
Es besteht vorwiegend in der Automobil-Industrie das Problem des Mediumvereisens von Rohren oder rohrähnlichen Leitungen. Dies führt insbesondere zu einer Reduzierung des Mediumdurchsatzes oder aber auch zu einer mechanischen Beschädigung von stromabwärts liegenden Aggregaten (z.B. Turbolader).It mainly exists in the automotive industry the problem of medium icing of pipes or pipe-like Cables. this leads to in particular to reduce the medium throughput or mechanical damage from downstream horizontal units (e.g. turbocharger).
Aus der eingangs genannten
Weiterhin ist aus der CH 313229 eine Rohrheizung zum Vorwärmen der Ansaugluft einer Brennkraftmaschine bekannt, um das Anlaufen der Maschine im kalten Zustand zu erleichtern. Die Rohrheizung weist ein oder mehrere hintereinander angeordnete elektrisch erhitzbare, aus Metallgaze gebildete Heizelemente auf, durch welche die Ansaugluft hindurchströmt.Furthermore, one is from CH 313229 Pipe heating for preheating the intake air of an internal combustion engine known to start to facilitate the machine when cold. The pipe heater points one or more electrically heatable heating elements formed from metal gauze through which the intake air flowing.
Der Erfindung liegt die Aufgabe zugrunde, eine Rohrheizung der eingangs genannten Art so zu verbessern, dass der Wärmeübergang von den Heizelement auf das strömende Fluid gesteigert wird.The invention has for its object a To improve pipe heating of the type mentioned so that the Heat transfer from the heating element to the flowing one Fluid is increased.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass, gesehen in Strömungsrichtung des Fluids, axial hintereinander eine Lochscheibe, eine Prallscheibe und eine Siebscheibe angeordnet sind, von denen mindestens eine als Heizelement ausgebildet ist.This object is achieved according to the invention solved, that, seen in the flow direction of the Fluids, axially one behind the other a perforated disk, a baffle disk and a screen disc are arranged, of which at least one is designed as a heating element.
Durch diese Maßnahme wird das Fluid labyrinthartig an dem bzw. den Heizelementen vorbeigeleitet, wodurch die Heizoberfläche vergrößert und daher eine bessere Heizleistung bewirkt wird. Außerdem entsteht durch die labyrinthartige Führung eine Verwirbelung des Fluids, wodurch darin eventuell vorhandene Eispartikel verstärkt geschmolzen werden. Bevorzugt ist dabei der Durchmesser der Prallscheibe größer als der Lochdurchmesser der Lochscheibe und als der Siebdurchmesser der Siebscheibe.This measure makes the fluid labyrinthine bypassed the heating element or elements, which increases the heating surface and therefore better heating performance is effected. Also created by the labyrinthine guide a swirling of the fluid, thereby possibly existing in it Ice particles reinforced be melted. The diameter of the baffle plate is preferred larger than the hole diameter of the perforated disc and as the sieve diameter the sieve.
Bei bevorzugten Ausführungsformen der Erfindung sind elektrische Anschlusskontakte als Einlegeteile in das bzw. jedes Heizelement eingebettet. Durch diese Maßnahme ist ein optimaler elektrisch leitender Kontakt zwischen den Anschlusskontakten und dem bzw. jedem Heizelement gegeben.In preferred embodiments the invention are electrical connection contacts as inserts embedded in the or each heating element. By this measure is an optimal electrically conductive contact between the connection contacts and given the or each heating element.
Vorzugsweise sind mehrere Heizelemente mit axialem Abstand nebeneinander auf zwei als Kontaktstäbe ausgebildeten Anschlusskontakten angeordnet, wobei die Kontaktstäbe auch zwischen den Heizelementen mit dem Kunststoff-Widerstandsmaterial umspritzt sein können. In diesem Fall können alle Heizelemente als ein einstückiges Spritzgussteil hergestellt werden.Preferably, several heating elements are included axial distance next to each other on two designed as contact rods Arranged contacts, the contact rods also can be encapsulated between the heating elements with the plastic resistance material. In in this case everyone can Heating elements as one piece Injection molded part to be made.
Weitere Vorteile der Erfindung ergeben sich aus der Beschreibung und der Zeichnung. Ebenso können die vorstehend genannten und die noch weiter aufgeführten Merkmale erfindungsgemäß jeweils einzeln für sich oder zu mehreren in beliebigen Kombinationen Verwendung finden. Die gezeigten und beschriebenen Ausführungsformen sind nicht als abschließende Aufzählung zu verstehen, sondern haben vielmehr beispielhaften Charakter für die Schilderung der Erfindung.Further advantages of the invention result itself from the description and the drawing. Likewise, the the above-mentioned and the features listed further according to the invention individually for themselves or more than one can be used in any combination. The embodiments shown and described are not as final enumeration to understand, but rather have exemplary character for the description the invention.
Es zeigen:Show it:
Die in
Die Rohrheizung
Das Rohr
Durch die Heizelemente
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20220854U DE20220854U1 (en) | 2002-06-11 | 2002-06-11 | Method, for heating fluids in a delivery tube in motor vehicle engine turbocharger, has a coaxial series of disc resistance heaters |
DE2002125949 DE10225949B4 (en) | 2002-06-11 | 2002-06-11 | Electric pipe heating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002125949 DE10225949B4 (en) | 2002-06-11 | 2002-06-11 | Electric pipe heating |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10225949A1 DE10225949A1 (en) | 2004-01-08 |
DE10225949B4 true DE10225949B4 (en) | 2004-07-08 |
Family
ID=29718969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002125949 Expired - Fee Related DE10225949B4 (en) | 2002-06-11 | 2002-06-11 | Electric pipe heating |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10225949B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007020531A1 (en) * | 2007-05-02 | 2008-11-06 | Leister Process Technologies | Hot-air unit, has heating unit made of semiconducting ceramic material i.e. porous for air flow, where material includes electrical contacts for connection to energy source and directly heated by current flowing over heating unit |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH313229A (en) * | 1953-04-28 | 1956-03-31 | Cav Ltd | Device to be placed in the air inlet pipe of an internal combustion engine for preheating the intake air |
CH505288A (en) * | 1968-08-20 | 1971-03-31 | Roderick Mcwade Duncan | Method and device for promoting the combustion of air-fuel mixtures in internal combustion engines |
DE3716142A1 (en) * | 1986-05-19 | 1987-11-26 | Raychem Corp | Diesel fuel heater and filter |
DE2760240C2 (en) * | 1976-09-09 | 1989-05-11 | Texas Instruments Inc | Resistance heater |
DE4121075C2 (en) * | 1991-06-26 | 1993-04-22 | Pierburg Gmbh, 4040 Neuss, De |
-
2002
- 2002-06-11 DE DE2002125949 patent/DE10225949B4/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH313229A (en) * | 1953-04-28 | 1956-03-31 | Cav Ltd | Device to be placed in the air inlet pipe of an internal combustion engine for preheating the intake air |
CH505288A (en) * | 1968-08-20 | 1971-03-31 | Roderick Mcwade Duncan | Method and device for promoting the combustion of air-fuel mixtures in internal combustion engines |
DE2760240C2 (en) * | 1976-09-09 | 1989-05-11 | Texas Instruments Inc | Resistance heater |
DE3716142A1 (en) * | 1986-05-19 | 1987-11-26 | Raychem Corp | Diesel fuel heater and filter |
DE4121075C2 (en) * | 1991-06-26 | 1993-04-22 | Pierburg Gmbh, 4040 Neuss, De |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007020531A1 (en) * | 2007-05-02 | 2008-11-06 | Leister Process Technologies | Hot-air unit, has heating unit made of semiconducting ceramic material i.e. porous for air flow, where material includes electrical contacts for connection to energy source and directly heated by current flowing over heating unit |
Also Published As
Publication number | Publication date |
---|---|
DE10225949A1 (en) | 2004-01-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |