SK123396A3 - Panel heating radiator - Google Patents

Abstract

A panel heating radiator made of sheet steel with releasable thread coupling elements (3) with union nuts (9) to secure the radiator to threaded sections (4) at the ends of pipes (5) to which the radiator (1) is to be connected. The thread coupling elements are formed on the end sections (6) of steel connecting pipes (7) having a flange (8) formed by a radial fold chipless-shaped in the pipe wall and fitted with a union nut (9) threaded upon them which bears on said flange (8) when said thread coupling element (3) is engaged with the threaded section (4) on the pipe (5). The connecting pipes (7) are welded to connecting stubs (15, 18) of the panel radiator (1) which, in turn, are welded to a radiator plate (2), or directly to a manifold (13, 14) of a panel (2) of the panel radiator (1).

Description

Plate heating element

Technical field

The invention relates to a plate heater made of sheet metal, which is provided with a detachable connection screw with union nuts allowing the heater to be connected to the threaded counterparts. The threads are formed at the ends of the supply pipes to which the heater is connected.

BACKGROUND OF THE INVENTION

In the known plate heaters of the above-mentioned type, the connecting helices are formed from pipe fittings which are connected to the heater from one side and are provided with a cap nut. As a rule, these pipe fittings are screwed into an internal thread, which is usually provided in connection sockets or connecting sockets attached to the heating element. However, the connecting screws may also be screwed on the male threaded sockets. With these screw connections, where the union nuts are slid on the pipe fittings, it is necessary to work more with the radiator, since these screw connections must be watertight. In the manufacture of these pipe fittings, which are usually made of brass or similar alloys by folding, it is necessary to count with not negligible costs.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a heater of the initially mentioned type, in which the disadvantages that occur with known plate heaters of this type are eliminated.

The panel heater according to the invention is characterized in that the connecting helices are formed in the end portions of the connecting tubes made of steel, which are provided with a radially shaped collar forming collar and a threaded union nut, while connecting the connecting helix with on these collars. The panel heater according to the invention is further characterized in that the connection pipes are welded to the connection sockets or connecting sleeves of the heater, which are welded to the heating plate or are welded directly in the heating plate collection channel.

The design of the heater fully corresponds to the objectives mentioned above. The design of the panel heater according to the invention constitutes a structurally simple solution with good strength and durability, which solution is simple to manufacture and thus at a relatively low cost. The flapless deformation of the inlet pipe to form a collar, which is then abutted by the corresponding union nut, is one of the fastest possible methods of manufacture in which no material is wasted and which requires only minimal costs. No other material is applied to the connecting steel pipe in order to produce a stop collar for the union nut and no special measures for collar fitting are required. pipes on a plate member provided with the above Welded steel made connection connection or connection sleeve of the radiator, or directly to the collector duct of the heating element. plate is the same technology used for assembly of plates and connection of socket connection sockets, therefore the connection can be performed the same as for assembly of heating plates and heating plate components, there are also possibilities of connecting pipes in welding process to other constructions heating plate elements.

joining, heating or connecting connection pipes by the equipment of others

Locations in which the connecting pipes are either welded through the connection sockets or connecting sleeves or directly welded to the heating element of the heater can be chosen at will, however, it is of course necessary to take into account the location of these welding points.

the effect on the location of these weld joints in the corner area of the radiator, i. j. very good flow properties can be achieved at the ends of the collecting ducts formed in the heating plate, where welding joints to the heating plate are also advantageous from this point of view also in terms of welding joints, which show good accessibility at these locations and can therefore be converted by commonly used welding devices such as those used in the normal welding of connection sockets or connecting sockets. However, the weld locations can be positioned further away from the center along the collecting duct, which may be advantageous with respect to the opposite axial distance of the weld locations of plate heaters of different sizes or because of the length of the connecting pipes, for example bodies with connecting helices.

For the fastening process, respectively. welding the connection pipes and also in order to achieve a stable position of the connection helices provided on the connection pipes, it is advantageous if the connection pipes are connected to each other advantageously because of the secured position against the transverse axial distance to any structure. Such a construction is especially provided for the installation of the heater, in a simple manner the connecting pipes are welded to one another by means of welded displacements and connecting screws

If the heater is to be equipped with a control valve, a simple design is achieved when the heating pipe connection is welded to the connection socket, which thus forms the control valve or valve. when the regulator is incorporated in this housing.

body is a valve housing

Advantageous embodiments of the plate heating element according to the invention, which exhibit good flow properties when forming the weld joints of the connection pipes to the heating plate or to the heating plate. furthermore, in view of the use of this process in the manufacture of a heater which also allows the exact position of the connection helix to be maintained, the two connection helices are located side by side in the middle of the lower edge of the heating plate. or a connecting sleeve provided on the same side of the heating plate. At the same time, the connection sockets or connection sockets open into both the upper collecting duct and the lower collecting duct of the heating plate.

To clamp the deposition welding of the pipe itself, the connection to the connecting piece and _on: the coupling sleeve, and the collection channel of the heating plate is preferred that the connecting tube at the place of welding a formed collar.

The very good stability and high strength of the respective end portion of the connection tube can be achieved in a simple manner by providing a collar in which the two radial surfaces formed by the folding lie on top of each other, i.e. without any gap.

With respect to the construction of said collar and the connection of the heater using the union nuts to the threaded supply pipes, it is furthermore advantageous if the connecting pipes are provided with a short sleeve which adjoins the collar. This short sleeve secures the corresponding position as well as guidance when connecting the heater and advantageously also grips the sealing ring in the correct position when screwing in the connecting screw. From the point of view of practical use in connecting the supply pipes, it is also advantageous if the short sleeve has a larger diameter than the connecting pipe located on the opposite side of the collar from which both the collar and the sleeve are molded.

Overview of the figures in the drawing

The invention is explained in more detail below with reference to the accompanying drawings. In the drawings, with reference to the illustrated, the following are indicated:

Fig. 1 shows an exemplary embodiment of a panel heater according to the invention in partial section in a rear view,

Fig. 2 is a cross-sectional view of the plate heater in plane II-II shown in FIG. 1

Fig. 3 shows a connecting helix of the plate heater formed according to FIG. 1; and FIG. 2, taken along the line III - III in FIG. 1 on a larger scale,

Fig. 4 shows a variant of the plate heating element shown in FIG. 1 to 3 in a view consistent with FIG. 1

Fig. 5 - FIG. 8 show a variation of an embodiment of a panel heater formed according to the invention, which differs in the design and arrangement of the connecting helix in a rear view;

Fig. 9 shows a cross-section of an exemplary embodiment of a plate heating element with two heating plates,

Fig. . 10 shows another exemplary embodiment of a connecting pipe with a connecting helix for one panel heater formed according to the invention in partial section.

Examples

The plate heater 1 shown in FIG. 1 to 3 consists of a heating plate 2, which is provided with a detachable connecting screw 3, which is intended to connect the heating element 7 to the counterparts provided with threads 11 which are provided at the ends of the supply pipes 5 with which the heating element 1 is connected. . These connecting screws 3 are formed on the end portions 6 which are provided with a collar 8 of the steel connecting tubes 7, a shaped radial fold 7 and a threaded union nut 6. The union nut, when connecting the connecting screw 4 to the feed tube 4 provided at the end of the thread 6, bears on the collar 4 and pushes it against the end of the feed tube 5. The connection pipes 7 are welded to the connection necks 15, 18, which are further welded to the heating plate 2. The connection piece 18 is designed as a housing of the control valve 19. The heating plate 2 is made of sheet steel and consists of a front wall 10 and a rear wall 11. By suitable internal shaping, one upper header channel 13 and one lower header channel 14 and a plurality of channels 12 are formed between the front wall 10 and the rear wall 11, which extend between the two collection channels £ 3, 14. In the plate heater 4 according to the exemplary embodiment shown in FIG. 1 to 3, in which case one connection pipe 7 via the connection socket 15 flows into the lower header channel 14 of the heating plate 2, and the other connection tube 7 opens via the connection neck 18 provided with a control valve 19 into the upper header channel 13. The weld joints produced here can be formed in a simple manner by electrical resistance welding, that is to say using the technology which is usually used to connect the front wall 10 and the rear wall 11 of the heating plate. Therefore, the welding pressures are absorbed or distributed such that on the walls of the heating plate 4 at the locations of the welding joints with the connecting pipes 7 and 7, respectively. there are no undesirable deformations at the connection sockets 5, 18, there are in each case support rings 46, inserted in the respective connection points 13, 14. However, the connection pipes 6 made of steel can be welded to the heating plate in another way, for example by arc welding. In all cases, however, it is expedient for the connection pipes 7 to be fixed on the heating plate 2 closer to the connection screws 3, for example by means of suitable angles or the like.

The collars 8 that are formed at the end portions are formed by forming a radial fold of the tube wall. The flanges 8 thus formed can be formed in a very simple manner, with low material costs, since their construction does not require any other material or any additional parts. In this exemplary embodiment, it is further envisaged, as is evident in particular from FIG. 3 that the two radial surfaces 21, 23 of the collar 8 forming the tube wall fold lie close together without any gap, whereby a very high strength and shape stability of the collar 8 can be achieved. However, a slight distance can be left between the two radial surfaces 21, 22.

As can be seen in particular in FIG. 3, a short sleeve 23 connected to the collar 8 is formed on the connecting pipe 1. This sleeve 23 holds and aligns the sealing ring 24, which is provided here in order to form a simple tight connection of the connecting screw 3 to the supply pipe 5 provided with the thread 4. The sleeve 23 can also serve to guide or mutually guide one another. centering the connecting pipe 7 with the counter-threaded thread 4 during the connection itself, the short sleeve 23 thus formed is also advantageous in making the collar 8 formed by folding the walls of the connecting pipe T.

In carrying out the flapless shaping of the radial collar 8, it is advantageous here that the sleeve 23 has a larger diameter than the diameter of the part of the connecting tube 7 connected from the other side of the collar 8, from which both the collar 8 and the sleeve 23 are formed. The larger diameter of the nozzle 23 thus formed can be advantageous both in terms of standardizing the network dimensions of the heating devices and in view of the fact that the relatively small flow cross-section of the connecting pipes 7 is often sufficient to supply individual heaters.

In the heating element of FIG. 1 to 3, in addition to the connection tubes 15, 18 for the connection tubes 7, further connection ports 15 are provided which open in the upper collection channel 13 and in the lower collection channel 14, these connection ports 15 generally serving for venting and draining the heating medium.

With regard to the location and orientation of the connection pipes with the connection helix as well as the location of the locations of the welded connection pipes to the heating element, a number of different possibilities are opened in the design of the panel heating element according to the invention.

In the plate heater 7 shown in FIG. 1, the two connection spirals 3 are arranged side by side at the lower edge 20 of the heating plate 2, closer to the right edge 26 thereof. channel 13 and lower collection channel 14 at the right edge 26 of the heating plate 26 of the embodiment variant shown in FIG. 4, the two connection screws 3 are arranged side by side in the region of the center of the lower edge 20 of the heating plate Z. at the same time, the connection piece 18 forms the housing of the control valve 19. The second connection pipe 7 then also leads to a connection socket 15 located at the right edge 26 of the heating plate 2, which then opens into the lower collecting channel 14 of the heating plate 2.

In the exemplary embodiment of the heater χ shown in FIG. 5, the two connection spirals 3 are placed side by side in the middle of the lower edge 20 of the heating plate 2, the connection pipes 7 leading to the connection necks 15 which are located on both edges 26, 28 of the heating plate 2 in the lower collecting channel 14. Further connection ports 15 are welded to the upper header channel 13. In this exemplary embodiment, the two connecting pipes 7 are connected to a clamp 27 in the form of an angle and thus form a modular element. The shim 27 is welded to the connecting pipes 7 and can also be welded to the heating plate 2.

A similar connection of the connecting pipes 7 by means of a bracket 27 in the form of an angle element, thus constituting a component, is also apparent from the exemplary embodiment of the heater 7 shown in FIG.

6. In this embodiment, the connecting screw 3 is also placed side by side in the middle of the lower edge 20 of the heating plate 2. One connecting pipe 7 leads to a connecting socket 18, in which a control valve 19 is located, and which opens in the upper collecting duct 13 at the right edge 26 of the heating plate 2. The second connection pipe 7 leads to a connection socket 15 which is located in the lower collecting channel 14 on the left edge 28 of the heating plate. Thus, in this embodiment, the two connection necks 15 and 18 are arranged diagonally to each other.

In the exemplary embodiment shown in FIG. 7, the two connection screws 3 are located on the right edge 26 of the heating plate 2, so that one connection screw 3 is up and one down. The connection pipes 16 are directed to the connection necks 15 which are provided in the upper header channel 13 and in the lower header channel 14 as well on the right edge 26 of the heating plate 26. Further connection ports 15 are also provided on the left edge 28 of the heating plate 2.

In the exemplary embodiment shown in FIG. 8, the connecting screws 3 are provided at the lower edge 20 of the heating plate 2 at a certain distance from each other. The connecting pipes 7 lead to the connecting necks 15, which are arranged in the lower collecting channel 14 on the right edge 26 and the left edge 28 of the heating plate 2. The other connections are provided in the upper header 13.

The exemplary embodiment of a panel heater according to the invention shown in FIG. 1 and FIG. 4 to 8 comprise one heating plate. However, the heating elements according to the invention can also be made of two or more heating plates which are connected to each other by means of connecting sleeves. In FIG. 9 shows an exemplary embodiment of a heater 7 comprising two interconnected heater plates 2. Both of these heating plates 2 are interconnected by connecting sockets 25, which are connected to the upper collecting ducts 13 and the lower collecting ducts 14 formed in both heating plates 2. However, other embodiments are possible, for example, in one of them, the connecting pipes 7 are welded to the heating plates 2 by means of the connecting necks 15.

In FIG. 10 shows a connection screw 3 of a connection pipe 7 of a heating plate 2 according to the invention to which the connection socket 15 is welded. A collar 17 is located at the location where the connecting pipe 7 adjoins the connecting sleeve 15 in order to establish their relative position. This collar 17 also simplifies the fabrication of the weld joint and at the same time increases its strength.

Claims (2)

PATENT CLAIMS 1. A panel heater made of sheet steel, provided with a detachable connecting screw (3) with union nuts (9) of a heating element (1) with threaded end pieces (4), characterized in that the connecting screw (3) which are formed in the end connecting tubes (7), for connecting the tubes (5) of the formed forming nut (9), the radial collars (8) of the steel parts (6) consist of a non-slip folding of the tube wall and 3) and inlet pipes (5) provided at the end with threads of the body tube respectively. it bears on the collar (9), the connecting (7). are welded to the heating plate (2) of the heating plate (1) via the connection sleeves (18, 18), the connecting sleeve (25) or directly into the collecting ducts (13, 14) formed in the heating plate (2). (4) A panel heater according to claim 1, characterized in that the connecting pipes (7) are connected to one another in a single component. A panel heater according to claim 1 or 2, characterized in that the connection pipe (7) of the heating element (1) is welded to the connection socket (18), which is designed as a housing of the control valve (19) or the valve (19). with this housing the control valve (19) forms a unit. A panel heater according to any one of claims 1 to 3, characterized in that the two connecting screws (3) are arranged side by side in the region of the center of the lower edge (20) of the heating plate (2), wherein both connecting pipes (7) run. from these connecting screws (3) to the connecting necks (15, 18) or connecting sleeves (25) which are provided on the same side edge (26) of the heating plate from these connecting necks (15, connecting sleeves (25) orifices into the upper collector The second one of the connecting sockets (15, 18) or the second connecting sleeve (25) opens into the lower collecting channel (14) of the heating plate (2). (2), wherein one of 18) or one of A panel heater according to any one of the claims 1 to 4, characterized in that the connecting tubes (7) are provided with a radial positioning collar (17) at the welding points. A panel heater according to any one of the preceding claims, characterized in that the two radial folding surfaces (21, 22), which form a collar (8) to each other on the connection pipe (7), abut one another without any gap. Ί. A panel heater according to any one of the preceding claims, characterized in that a short sleeve (23) is formed on the connecting pipes (7), which is connected to the collar (8). A panel heater according to claim 7, s on the c e s a because of mouthpiece (23) downstream on the shoulder (8) has a larger average than connecting pipe (7) na the other side shoulder (8), of which it is Nipple (23) shaped. 9. Board heating body according to one The preceding claim, characterized in that a sealing ring (24) is provided on the sealing surface formed on one side of the collar (8).