MORE HEIZKORPER

For Heizlcörper also by vertical collector pipes flir Vorund return connected horizontal flat pipes are well-known different designs. With most well-known heating elements find the vertical collector pipes at the two ends of the horizontal heat pipes, which lead into all these collector pipes, made of which reason the latter larger flowing through cross section exhibit itself must. One preferably uses flat pipes for aesthetic reasons for the heat pipes, so that at the ends because of the larger Dimenslonierung from the level of the flat pipes manage the same vertical collector pipes present forward and in the back, if one selects the symmetrical arrangement which can be manufactured most simply. From aesthetic gentle ones one has also heating elements manufactured to reach with which the Kollektorro e to the back is transferred, in order that the front of the heating element is perfectly even. This construction requires however more expenditure when welding the flat pipes into the collector pipes. The flat pipes must lie on top of each other also necessarily directly, in order to be able to weld it altogether into the collector pipes, because if one wanted one above the other to arrange the individual flat pipes in the distance, one would have to weld the collector pipe between the individual flat pipes in the welding place, which is hardly applicable from manufacture-technical reasons. A distance between the individual flat pipes is of advantage however, since thereby a higher amount of heat lets itself obtain, which results due to the Luftzirkulation between the flat pipes and free heating surface, larger possible during such an arrangement, with itself the not affecting pipes. Also with another well-known construction of a heating element with inwendig connected flat pipes these lie on top of each other directly. During all well-known constructions of heating elements of this kind one strove to bring aesthetic considerations with manufacture-technical criteria in agreement so that the heating element is responding as inexpensive as possible producible and in its outside form. The Zie desired! a heating element is also at the back arranged collector pipes, to which the flat pipes are so connectable that between them any distance can be present. A proposal made in this direction saw forwards connect the flat pipes also at the back for collector pipes present by embossment weld with which the necessary substantial Herstellungsanfi¢¢and let itself reduce fiir the production of the welded joints by means of Autogenoder COz weld substantially, particularly since one could do thereby also without specialist for welding. In accordance with this proposal into the flat pipes bflchsenförmige distance pieces were welded, which implement the tubing interior completely, to take up and as current transducers serve in order with the projection welding anfzuwendenden Sweden-hit a corner, and whose were welded at the same time to a side fibre the flat pipes managing ends with all junction points by means of embossment weld into the collector pipes. Each flat pipe was connected to the other end of the pipe by two close to and arranged distance pieces with the two collector pipes, whereby these distance pieces on the longitudinal center of the flat pipe were arranged. It stehte itself however out that with the ventilation and/or when emptying the heating element difficulties arose, because above the longitudinal center of the flat pipe screen end air cushion was hardly to be departed and/or the water remainder remaining below the longitudinal center could not run off, so that for the recovery of these difficulties additional measures would have been necessary. It is however well-known with heating elements with aneir anderllegenden Flachrohten and at each end the same arranged, in each case main sewers formed by a Winkelprof'd to plan in each flat pipe two drillings one above the other for connection into the back welded main sewer whereby such difficulties can be avoided when the ventilation and emptying the heating element. With the suggested solution mentioned before however welding the individual distance pieces into the Flachrahre represented one still to complex processing step, because hieflir only a usual welding method was possible, even if connecting all distance pieces with the KoUektorrohren brought a substantial simplification by embossment weld. Those the invention underlying Anfgabe consisted from there of eliminating the aforementioned disadvantages regarding still to extensive ArbeitsatLfwandes NR welding the distance pieces. The invention concerns from there a heating element also by vertical KoUektorrohre for Vorund Rück.lanf connected horizontal flat pipes, which kind the same collector pipe over at least two connections are attached in each case, from which a connection the close of the upper and the other one close lower round of the flat pipe is arranged. The heating element is characterized according to invention by that the collector pipes and the flat pipes at the connection points exhibit drillings of different diameter and that pressed at the collector pipes or the flat pipes with each drilling is connected to different pipe this surrounding range of the pipe wall outward and by BuckelschwelBung with that in each case. Are appropriate in each flat pipe coaxially to each drilling büchsenFörmige supported [le arranged, which rest against each other facing inner walls of the flat pipe and at least in each case a lateral Öffiaung for water-depressed exhibit. For the perpendicularly lying on top of each other drillings at the upper and lower edge of the flat pipe appropriately two supporting pieces can be connected by a bar. This Stütztefle must no more into the flat pipe be welded, but can simply within the F1achrohres to the Ansctdußbohrungen be led, before the flat pipe at the end is locked. The supporting pieces have only the task to take up the welding pressure to serve as current transducers and to ensure an inevitable discharge. They serve avenge for the production the connection to the collector pipes, there this connection now by the direct Zusammenbuckeln of squeezed out Wandbere [pipes and unchanged wall sections of the other pipes chen are manufactured. By the arrangement of at least two connections at the upper and lower edge of each flat pipe a good exhaust and emptying of the heating element are ensured one above the other. Further advantages and details of the invention result from the following description and the designs, in which different execution forms of the ErFmdungsgegenstandes are purely for example represented. Show: Fig.1 a vertical cut by one KoUektorrohr and two flat pipes in the condition, in a first Ausführnngsform of the welded joint, not welded together yet, Fig.2 a Vertika! Fig.3 cut a side view in the together-swollen condition of the KoUektorrohres with the flat pipes, Fig.4 a vertical cut by a further Ausfü'hrungsform of KoUektorund flat pipe in the zusarnmengeschweißten condition and Fig.5 a cross section endang the line V-V in Fig.4 according to Fig.1 in a second execution form of the welded joint. In the Fig.1 and 2 are two different types for the connection of the flat pipes --1-- to the collector pipe --2-- represented. In the welded together condition the heating element represented in Fig.3 in side view possesses a majority of horizontal one above the other arranged flat pipes, by which in the designs only two are represented, which flat pipes to two vertical collector pipes for Vorund return is attached, by which in the designs only one is visible. The KoUektorrohre is from the front seen at the back of the Flachr hre in the distance from the ends of these flat pipes, whereby this distance can be selected at will. With the heating element in accordance with Fig.1 is the vertical pipe --2-- a square tube, in its an even tube sheet drillings with an edge of drilling pressed trichterförmig outward --3-- are intended. For the connection with the flat pipe --1-- close of the top margin and close of the lower edge are Bohrnngen in this --4-- trained, their diameter than the diameter of the drilling and this surrounding of edge of drilling are larger --3-- at the collector pipe --2--. Into the not represented welded together condition the edge of drilling reaches --3-- into the drilling --4-- at the flat pipe --1-- , so that the contact takes place between both along an edge, why one speaks of an edge weld, if the flat pipes are connected with the collector pipe by embossment weld. A welding machine not represented in the designs possesses two electrodes, from those the one against the KoUektorrohr --2-- and the other one against the flat pipe --1-- is pressed in slightly, whereby a welding pressure up to 800 kg is applied. With this pressure the flat pipe became --1-- are deformed. Therefore büchsenförmige supporting pieces are coaxial in each flat pipe to each drilling --5-- arranged, those at each other facing inner walls of the flat pipe fit and those at least in each case a lateral opening --6-- possess for water-depressed. The supporting pieces are slid into the flat pipe from an open end, before this end of pipe is locked. Two perpendicularly one above the other arranged supporting pieces --5-- can be connected by a bar not represented in the designs, so that one has to push in one part per AnschlußsteUe only. Since the VerbindungssteUen lies between F1achrohr and collector pipe close upper round and close of the lower edge of the flat pipe, is a perfect exhaust and emptying of the flat pipes ensures. When filling the heating body is vernacMässigbar small at the top margin still remaining air cushions, and when emptying the heating element down only a small quantity of water stops in the flat pipe. The kostengänstige production of this heating element is made possible for the embossment weld thus here by application unique for the production of the connections, whereby the supporting pieces take up the welding pressure, when current transducers serve and provide for an inevitable Wasserführnng. The Aus£ührungsform in accordance with Fig.2 differs from in accordance with Fig.1 only thereby that at the collector pipe --2-- pulled out embossments, i.e. the edge of drilling pressed trichterförmig outward --3-- in the diameter is larger than the drilling --4-- in the flat pipe --1--, so that the edge of drilling lies close against the external wall of the flat pipe, why this connecting kind is called putting on weld. With third in the Fig.4 and 5 the collector pipe possesses represented execution form --10-- a circular Querschnltt and for dle embossment weld necessary pulled out embossments is in this case at the flat pipe --11-- planned and of a range pressed outward --12-- the pipe wall in an educated manner, to which completely close is at the upper and/or because of the lower edge of the flat pipe. Therefore can be done without with these Aus£ührungsform supporting pieces within the flat pipe. The drilling --13-- in the place of the range pressed outward --12-- the pipe wall is here in the diameter smaller than the coaxially to it-lying drilling ---14--- in the collector pipe ---10---. From Fig.5 it is recognizable that the range pressed outward ---12-- the pipe wall into the welded together condition of the pipes from above seen by the welding pressure something pressed is and thus to the curvature of the collector pipe is adapted. With this execution form still better than with described the before by directly the connections ber'redlichen at the upper and lower edge of the flat pipe a perfect emptying and exhaust of the heating element are ensured.