DE6606280U - DEVICE FOR CONTINUOUS HEATING OF A HEATING MIRROR FOR BUTT WELDING WORKPIECES, IN PARTICULAR PLASTIC PIPES. - Google Patents
DEVICE FOR CONTINUOUS HEATING OF A HEATING MIRROR FOR BUTT WELDING WORKPIECES, IN PARTICULAR PLASTIC PIPES.Info
- Publication number
- DE6606280U DE6606280U DE6606280U DE6606280U DE6606280U DE 6606280 U DE6606280 U DE 6606280U DE 6606280 U DE6606280 U DE 6606280U DE 6606280 U DE6606280 U DE 6606280U DE 6606280 U DE6606280 U DE 6606280U
- Authority
- DE
- Germany
- Prior art keywords
- heating
- mirror
- fuel gas
- hot
- heating mirror
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
- B29C65/26—Hot fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Description
ti·* W 4ti * W 4
MESSER GHIESHEIM GMBH .:.·..' '.."..· : '..' MG 391 MESSER GHIESHEIM GMBH.:. · .. '' .. ".. ·: '..' MG 391
Kennwort: Autogen beheizte Heiaspiegel
Erfinder: BemelmannPassword: Oxy-fuel heated mirrors
Inventor: Bemelmann
Einrichtung zur kontinuierlichen Beheizung eines Heizspiegels
zum Stumpfschweißen von Werkstücken, insbesondere Kunststoffrohren
\ Device for continuous heating of a heating mirror
for butt welding workpieces, especially plastic pipes \
Die Erfindung betrifft eine Einrichtung zur kontinuierlichen jj Beheizung eines Heizspiegele zum Stunpfschweißen von Werk- | stücken aus thermoplastischem Material, insbesondere Kunst- IThe invention relates to a device for continuous jj Heating of a heating mirror for stump welding of work | pieces made of thermoplastic material, especially synthetic I
—Ί —Ί
u i-ΐχ·u i-ΐχ
Ringförmige Heizspiegel dienen beispielsweise zum Stumpfschwei- | ßen von Kunststoffrohren. Auch Kunststoffteile anderer Form | können mittels entsprechend geformter Heizspiegel geschweißt fAnnular heating mirrors are used, for example, for butt welding of plastic pipes. Also plastic parts of other shapes | can be welded by means of appropriately shaped heating mirrors f
werden. |will. |
Die Beheizung bekannter Heizspiegel erfolgte bisher in indi- JThe heating of known heating mirrors has so far been carried out in indi- J
rekter Weise durch Rohrheizkörper, beispiels\^eise Backerrohre, §in the right way by means of tubular heating elements, for example backer tubes, §
Heizkabel oder Bodenheizkörper mit Glimmerisolation. Die auf- |Heating cables or floor radiators with mica insulation. The on- |
grund der indirekten Beheizung und Isolation erforderlichen |required due to indirect heating and insulation |
Betriebsspannungen lagen meist bei 220 Volt, einen für den ]Operating voltages were mostly 220 volts, one for the]
Menschen schon sehr gefährlichen Betrag. ■ ;People already very dangerous amount. ■;
Mit derartigen Heizspiegeln konnten beispielsweise Kunststoffrohre bis maximal 120 mm Durchmesser verschweißt werden. Kunststoffrohre
größeren Durchmessers waren bislang wenig üblich.
Es besteht jedoch neuerdings die !Tendenz, für Abwasserleitungen
Kunststoffrohre zu verwenden, die vergleichsweise billig verlegt
werden können, da sie beispielsweise aufgrund ihrer Elastizität keine geglätteten und befestigten Grabensohlen benö- \
tagen. Solche Abwässerrohre können Durchmesser bis zu 1500 minWith such heating mirrors, for example, plastic pipes with a maximum diameter of 120 mm could be welded. Plastic pipes of larger diameters have not been very common up to now.
However, there has recently been a tendency towards sewer pipes
Days plastic pipes to use that can be moved relatively cheap, as for example benö- not smoothed and paved grave soles because of its elasticity \. Such sewer pipes can have a diameter of up to 1500 min
aufweisen.exhibit.
Zur Vereühweißung derartig umfangreicher Rohre hat man vorgeschlagen, den Heizapiegel durch Anschluß an die Sekundärwicklung einoo Auftautranaförffiätors direkt elektrisch aufzuheizen. Dieses Verfahren führt nur dann zu "brauchbaren Ergebnissen, wenn man eine gleichmäßige 'femp eraturvort eilung Über der gesamten Heizfläche des Heizapiegels erreicht. Das Problem konnte obenfalls bereitο gelöst werden, und zwar durch Anordnung von Laschen an den Anschlußstellen des Heizspiegels zum allmählichen Temperaturaufbau sov/ie ferner dadurch, daß man an bestimmten Stellen des Heizspiegels Einschnitte, Bohrungen bzw» Elemente aus gut wärmeleitendem Material anbrachte.For the welding of such extensive pipes, it has been proposed that Direct electrical heating of the heating mirror by connecting it to the secondary winding of a thawing system. This procedure only leads to usable results if one has an even 'femp erature advantage over the whole Reached the heating surface of the heating mirror. The problem could already be solved above, by arrangement of tabs at the connection points of the heating mirror for the gradual build-up of temperature so / ie further by the fact that one made incisions, bores or »elements made of a material that conducts heat well at certain points on the heating mirror.
Kun bringt jedoch die an sich technisch vollkommene elektrische Beheizung des Heizspiegels - sei sie nun indirekt oder direkt - immer den Nachteil mit sich, daß man von einer Stromquelle beträchtlicher Leistung abhängig ist. Dies spielt insbesondere dann eine Rolle, wenn die Rohre - was gerade bei Abwasserleitungen häufig geschieht - in freiem unwegsamen Gelände verlegt werden müssen.However, Kun brings the technically perfect electrical heating of the heating mirror - be it indirect or direct - always with the disadvantage of being connected to a power source is dependent on considerable performance. This is particularly important when the pipes - which is especially true with sewer pipes often happens - must be laid in open, impassable terrain.
Der Erfindung· liegt nun die Aufgabe zugrunde, eine Möglichkeit. KU finden, einen Heizspiegel eingangs genannter Art unabhängig von elektrischen Stromquellen zu beheizen. Zur Lösung des Problems wird orfindungsgeniäß im ν;ε ξ ent lieh en vorgeschlagen, daß der Heizspiegel hohl ausgebildet und von einem heißen Medium durchströmt ist.The invention is now based on the object of a possibility. KU find a heating mirror of the type mentioned at the beginning independently to be heated by electrical power sources. To solve the problem, according to the invention, it is suggested borrowed from ν; ε ξ, that the heating mirror is designed to be hollow and a hot medium flows through it.
Die Temperatur des heißen Mediums geht dabei an die Wände des Heizspiegels und von dort an die zu verschweißenden Flächen des Werkstücks über. Durch entsprechende Dimensionierung der Heizspiegelwände kann leicht eine gleichmäßige Temperaturverteilung über die mit dem Werkstück in Eingriff stehenden Heizspiegelflächen erreicht werden. Selbstverständlich ist es zweckmäßig, das Medium durch den Hexzspiegel strömen zu lassen, während dieser sit dein Werkstück in Eingriff steht»The temperature of the hot medium goes to the walls of the heating mirror and from there to the surfaces to be welded of the workpiece. By appropriate dimensioning of the heating mirror walls, a uniform temperature distribution can easily be achieved can be reached via the heated mirror surfaces in engagement with the workpiece. It goes without saying it is advisable to let the medium flow through the hex mirror while this is in contact with your workpiece »
t It I
* I * t* I * t
Als wärmeüb ertrag end es Medium kann "beispielsweise eine Flüssigkeit dienen. Erfindungsgemäß v/ird jedoch, beispielsweise aus Gewichtsgründen,bevorzugtp daß als Heizraedium ein Gso dient»As wärmeüb profitable end, however, it may medium ", for example, serve a liquid. According to the invention v / ill be, for example, for reasons of weight, preferably p that a Gso serves as Heizraedium"
Das Gas, 'beispielsv/eise Luft, kann in einer separaten Heizanlage erhitzt v/erden. Einfacher und zweckmäßiger ist es jedoch und v/ird entsprechend erfindungsgomllß bevorzugt» wenn als Hei2-medium die beim Verbrennen eineo Brenngas-Luftgemischea entstehenden Abgase dienen. Eine separate Heizanlage kann dadurch eingespart werden.The gas, for example air, can be heated in a separate heating system. However, it is simpler and more practical and it is preferred according to the invention when used as a heating medium the combustion gas-air mixturea produced during combustion Serve exhaust gases. This saves a separate heating system.
Der Heisspiegel kann eine einzige öffnung aufweisen, in die das heiße Gas eintritt und durch welche es nach Durchströmen des beispielsweise ringförmigen Heizspiegels auch wieder austritt. Strömungstechnisch zweckmäßiger ist es jedoch» wenn der Hoisspiegel eine separate Austrittsoffnung aufweist.The hot mirror can have a single opening into which the hot gas enters and through which it also exits again after flowing through the, for example, annular heating mirror. In terms of flow, however, it is more appropriate »when the Hois level has a separate outlet opening.
Das Einführen der heißen Abgase in den Heizspiegel erfolgt erfindungsgemäß vorzugsweise derart, daß unmittelbar an der Eintritt so ff nung des Heizspiegels ein an sich bekannter Luftbrenner angeordnet ist.The introduction of the hot exhaust gases into the heating mirror takes place according to the invention preferably in such a way that an air burner known per se is immediately at the inlet opening of the heating mirror is arranged.
Besonders vorteilhaft ist es, wenn die heißen Abgase mit hoher Geschwindigkeit in den Heizspiegel einst-fompvi* Um ein« solche hohe Geschwindigkeit - in diesem Fall sogar Schallgeschwindigkeit - zu ex-reichen, schlägt die Erfindung vor-, daß an der Eintrittsöffnung des Heizspiegels eine Lavaldüse angeordnet ist, in welche die heißen Abgase unmittelbar eintreten.It is particularly advantageous if the hot exhaust gases enter the heating mirror at high speed high speed - in this case even the speed of sound - To ex-rich, the invention suggests that at the A Laval nozzle is arranged in the inlet opening of the heating mirror, into which the hot exhaust gases enter directly.
Die oben erwähnte separate Austrittsöffnung kann grundsätzlich an beliebiger Stelle des Heizspiegels angeordnet sein, beispielsweise - bei einem ringförmigen Heizspiegel - gegenüber der Eintrittsöffnung. Die heißen Abgase treten dann in den Ring ein, teilen sich auf, durchströmen den Ring in jeweils entgegengesetzter Richtung, treffen sich auf der der Eintrittsöffnung diametral gegenüberliegenden Seite und verlassen durch die dort befindliche Ausir-ittsöffnung den Eeiaspiegel. EineThe above-mentioned separate outlet opening can in principle be arranged at any point on the heating mirror, for example - in the case of an annular heating mirror - opposite the inlet opening. The hot exhaust gases then enter the ring one, split up, flow through the ring in opposite directions, meet at the inlet opening diametrically opposite side and leave the egg mirror through the outlet opening there. One
besoero Ausnutzung der in den Gasen enthaltenen Ϋ/ärme wird jedoch dadurch erreicht, daß der Heizspiegel innen in mehrere parallele, vorzugsweise drei, miteinander verbundene Kammern aufgeteilt ist, und daß das heiße Medium die Kammern nach des Gegenstromprinzip durchströmt.besoero utilization of the Ϋ / poor contained in the gases however, achieved in that the heating mirror is internally divided into several parallel, preferably three, interconnected chambers is divided, and that the hot medium flows through the chambers according to the countercurrent principle.
In diesem Falle ist es zweckmäßig,, wenn die Verbindungsbohrungen der einzelnen Kammern diametral gegenüber der Eintrittsöffnung liegen und !Eintritts- und Austritts öffnung des Heizspiegsls benachbart- SAiIn this case it is useful, if the connecting holes of the individual chambers are diametrically opposite the inlet opening and! inlet and outlet opening of the heating mirror neighboring- SAi
Die Temperatur des Heisspiegels hängt von dem Durchsatz an heißen Gasen, d.h von der Menge des pro Zeiteinheit dem Brenner zugeführten Brenngases ab. Durch Regulierung der Brenn^asmenge kann also auch die Temperatur des Heizspiegels reguliert werden, Dies kann gemäß einem Vorschlag der Erfindung dadurch erfolgen, daß in der Austrittsöffnung ein Regelorgan angeordnet ist, welches in Abhängigkeit von der Temperatur der austretenden Gase die Brenngaszufuhr regelt.The temperature of the hot mirror depends on the throughput hot gases, i.e. on the amount of fuel gas fed to the burner per unit of time. By regulating the The amount of fuel can therefore also be the temperature of the heating mirror This can be done according to a proposal of the invention in that a regulating member in the outlet opening is arranged, which regulates the fuel gas supply depending on the temperature of the exiting gases.
.Als Regelorgan kann beispielsweise ein Bi-Metall verwendet werden, welches zugleich als Brenngasvent-il cHemt- Eine weitere erfindungsgemäße Ausführungsform ist gekennzeichnet durch ein Thermostatventil als Regeiorgan und Brenngasventil, dessen Fühler im Heizspiegel direkt angeordnet ist.A bi-metal, for example, can be used as a regulating element which at the same time serves as a fuel gas valve-il cHemt- Another embodiment according to the invention is characterized by a thermostatic valve as a control element and fuel gas valve, the sensor of which is located directly in the heating mirror.
Die Erfindung ist nun anhand eines Ausführungsbei3piel3 in de"" Zeichnung und der nachstehenden Beschreibung näher erläutert. Die Zeichnung zeigt in schematischer Form einen Schnitt durch einen Heizspiegel.The invention is now based on an exemplary embodiment in de "" Drawing and the following description explained in more detail. The drawing shows in schematic form a section through a heating mirror.
Der mit 10 bezeichnete ringförmige Heisspiegel besteht aus drei Kammern 11« 12 und 13, bezw*-11', 12' und 13'. Die Kammern sind durch eine Trennwand 14 unterteilt.The ring-shaped hot mirror denoted by 10 consists of three Chambers 11, 12 and 13, or * -11 ', 12' and 13 '. The chambers are divided by a partition 14.
Auf seiner der Trennwand 14 diametral gegenüberliegenden Seite weist der Heizspiegel 10 eine Eintrittsöffnung 19 auf.On its side diametrically opposite the partition 14, the heating mirror 10 has an inlet opening 19.
Il > « i . / t/jIl> «i. / t / j
. . . ri ι S. . . ri ι S
Oberhalb der Eintrittsöffnung 19 ist ein Luftbrenner 20 ange- ; ordnet. Die Heiz- bezw. Brenngasleitung ist in der Zeichnung strichpunktiert dargestellt und mit 21 bezeichnet. Durch einen Kanal 22 tritt Außenluft in den Brenner 20 ein, wobei das Absaugen derselben durch die Injektorwirkung des Brenngases er- j folgt. Das so entstandene Brenngas-Luftgeniiseh wird an der mit 23 \ bezeichneten Brennerdüse gezündet. Die Flamme 24 ist von einem j Rohrstutzen 25 umgeben, der radiale Bohrungen 26 aufweist, durch welche weitere Terbrennungsluft zu der Flamme hinzutreten kann. Innerhalb des P.ohrstutzens 25 ist eine Lavaldüse angeordnet, wodurch Schallgeschwindigkeit der Abgase erreicht wird.An air burner 20 is attached above the inlet opening 19; arranges. The heating resp. Combustion gas line is shown in dash-dotted lines in the drawing and denoted by 21. Outside air enters the burner 20 through a duct 22, the suction of which takes place through the injector effect of the fuel gas. The resulting fuel gas-air mixture is ignited at the burner nozzle marked with 23 \. The flame 24 is surrounded by a pipe socket 25 which has radial bores 26 through which further combustion air can enter the flame. A Laval nozzle is arranged inside the P.ohrstutzens 25, whereby the speed of sound of the exhaust gases is achieved.
Die bei der Verbrennung entstehenden heißen Abgase gelangen äurofc. die Eintrittsöffnung and einen Kanal 27 unmittelbar in die mitt- j leren Heizspiegelkammern 12, 12', wo sie in Pfeilrichtung die j Kammer 12, 12' durchströmen. An der Trennwand γ/erden die Gase ) aufgehalten, umgelenkt und treten nun in die Kammern 11, 11· und j 13, 131 über und strömen in entgegengesetzter Richtung wieder in den oberen Teil des Heizspiegels zurück. Dabei tritt nach dem Gegenstromprinzip ein intensiver Wärmeaustausch zwischen den in der mittleren Kammer 12, 12· und den in der inneren bezw. äußeren Kammer 11, 11' bezw. 13, 13' strömenden Gase auf. Auf ihrem '«Vege durch die Kammern 11, 12, 13 bezw. 11', 12', 13' geben die Gase ständig Wärme an die Wandungen des Heizspiegels ab, so daß eine gleichmäßige Erwärmung desselben gewährleistet ist. Schließlich gelangen die Gase durch eine mit 28 bezifferte Austrittsöffnung, die in unmittelbarer Nachbarschaft der Eintrittsöffnung 19 liagt, ins Freie.The hot exhaust gases produced during the combustion process are released. the inlet opening and a channel 27 directly into the central heating mirror chambers 12, 12 ', where they flow through the chamber 12, 12' in the direction of the arrow. The gases are held up at the partition γ / earth, deflected and now pass into the chambers 11, 11 · and j 13, 13 1 and flow back in the opposite direction into the upper part of the heating mirror. According to the countercurrent principle, an intensive heat exchange occurs between the in the middle chamber 12, 12 · and in the inner respectively. outer chamber 11, 11 'respectively. 13, 13 'flowing gases. On their '"Vege through the chambers 11, 12, 13 respectively. 11 ', 12', 13 ', the gases constantly give off heat to the walls of the heating mirror, so that the same is guaranteed to be heated evenly. Finally, the gases pass through an outlet opening numbered 28, which lies in the immediate vicinity of the inlet opening 19, into the open.
In einem Rohrstutzen 29, an dessen Ende sich die Austrittsöffnung 28 befindet, ist ein schenatisch angedeuteten und r.it 30 bezeichnetes Bi~I"etall angeordnet. Das auf die Temperatur der austretenden Abgase reagierende Bi-Ketall 30 betätigt ein Ventil 31, welches in der Brenn^asleitung 21 angeordnet ist und die Brenngaszufuhr zum Brenner 20 reguliert. Ist nun die Temperatur der austretenden Gase zu hoch, so betätigt das Bi-Metall 30 das Ventil 31 in Schließrichtung, die Brenngaszufuhr v/ird gedrosselt, woraufhin, die Temperatur des HeizspiegeloIn a pipe socket 29, at the end of which the outlet opening 28 is located, there is a schematically indicated and r.it 30 labeled Bi ~ I "etall arranged. That on the temperature of the Exiting exhaust gases reacting Bi-Ketall 30 actuates a valve 31, which is arranged in the combustion line 21 and regulates the fuel gas supply to the burner 20. If the temperature of the escaping gases is too high, the bi-metal is activated 30 the valve 31 in the closing direction, the fuel gas supply v / is throttled, whereupon the temperature of the heating mirror
damit auch der austretenden Gase absinkt. Wird dabei der
vorgegebene . Temp era tür- Soll-V/ert unterschritten, so wird das
Ventil 31 durch das Bi-Metall 30 wieder entsprechend geöffnet
usf. Auf diese Weise ist eine ausreichend genaue Konstanthaltung der Temperatur des Heizspiegels siöglich.so that the escaping gases also decrease. Will the
given. If the temperature falls below the target value, the valve 31 is opened again accordingly by the bi-metal 30, and so on. In this way, the temperature of the heating level can be kept constant with sufficient accuracy.
Claims (10)
10. Einrichtung nach Anspruch 9S gekennzeichnet durch ein Bi-Iletall (30) als Regelorgan, welches Bi-Ketall das Brenngasventil (31) betätigt.f
10. Device according to claim 9 S, characterized by a Bi-Iletall (30) as a control element, which Bi-Ketall actuates the fuel gas valve (31).
Sche/Pu10.1967
She / Pu
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE6606280U DE6606280U (en) | 1967-11-02 | 1967-11-02 | DEVICE FOR CONTINUOUS HEATING OF A HEATING MIRROR FOR BUTT WELDING WORKPIECES, IN PARTICULAR PLASTIC PIPES. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE6606280U DE6606280U (en) | 1967-11-02 | 1967-11-02 | DEVICE FOR CONTINUOUS HEATING OF A HEATING MIRROR FOR BUTT WELDING WORKPIECES, IN PARTICULAR PLASTIC PIPES. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE6606280U true DE6606280U (en) | 1970-09-10 |
Family
ID=6586300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE6606280U Expired DE6606280U (en) | 1967-11-02 | 1967-11-02 | DEVICE FOR CONTINUOUS HEATING OF A HEATING MIRROR FOR BUTT WELDING WORKPIECES, IN PARTICULAR PLASTIC PIPES. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE6606280U (en) |
-
1967
- 1967-11-02 DE DE6606280U patent/DE6606280U/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2343861C2 (en) | Burners for metalworking furnaces | |
| CH617359A5 (en) | ||
| DE1526031A1 (en) | Gas burner | |
| DE2704551C2 (en) | ||
| DE1906772C3 (en) | Spray can | |
| DE2612335A1 (en) | PROCEDURE FOR THE CONTROLLED SEPARATION OF SUBSTANCES BY HEATING AND SEPARATING FURNACE FOR EXECUTING THE PROCESS | |
| DE1401769B2 (en) | METHOD AND DEVICE FOR INCINERATION OF LOW FLUID LIQUIDS | |
| DE2340013C3 (en) | Fuel evaporator for gas turbine engines | |
| DE6606280U (en) | DEVICE FOR CONTINUOUS HEATING OF A HEATING MIRROR FOR BUTT WELDING WORKPIECES, IN PARTICULAR PLASTIC PIPES. | |
| DE1704206C (en) | Device for continuous heating of a heating mirror for butt welding workpieces, in particular plastic pipes | |
| DE2941744A1 (en) | DEVICE FOR PREHEATING FUEL OR FUEL | |
| DE384156C (en) | System for controllable irrigation of the soil below the earth's surface | |
| DE1704206B2 (en) | DEVICE FOR CONTINUOUS HEATING OF A HEATING MIRROR FOR BUTT WELDING WORKPIECES, IN PARTICULAR PLASTIC PIPES | |
| DE2844983A1 (en) | DEVICE FOR MIXING TWO FLUIDS AND A SLIDER EQUIPPED WITH IT | |
| DE7623039U1 (en) | GENERATOR FOR HOT WATER, STEAM AND THE LIKE | |
| DE903264C (en) | Device for the treatment of liquids with ultraviolet rays | |
| CH273900A (en) | Process and device for the distribution of liquids. | |
| DE862051C (en) | Space heater | |
| DE2317148A1 (en) | IGNITION DEVICE FOR GAS APPLIANCES | |
| DE612864C (en) | Device for burning out barrels | |
| DE500299C (en) | Steam generator with injection of the finely atomized feed water | |
| DE1752502B1 (en) | Torch for autogenous build-up welding | |
| DE2403486A1 (en) | Head for fuel oil burner - has a throttle disc to prevent entry of additional air | |
| AT259943B (en) | Cylinder head for water-cooled injection internal combustion engines | |
| DE1806877C (en) | Gas burner |