SK81996A3 - Device for connecting radiators, in particular centrally - Google Patents

Abstract

Device (10) to connect a radiator and its control valve, all contained within a casing, to an externally supplied heat transfer medium, via a flow (14) and a return connection (12). a) Between the external flow connection (14) and the special fitting at the beginning of the radiator (20a), a pipe (18) extends over nearly half the radiator length. b) The special fitting (20a) has at least one opening (24) for the medium to flow into the radiator (100a, 100b), controlled by the valve (104). Further details of the device, its method of manufacture and the preferred flat radiator are claimed.

Description

Technical field

The invention relates in particular to a device for the central connection of a heating element according to the feature of claim 1

BACKGROUND OF THE INVENTION

At present, the heating elements are mainly connected at their ends to the piping systems of the patent house, in particular single or double pipe systems with inflow and outflow. There is a recurrence that, due to building deficiencies, structural changes or various installation wishes, the radiators must be installed not in the intended location, but also with different size sizes, or with reasonably different construction measures deviating from the plan. To this end, the connection systems in addition to valves, inlet and outlet connections and the like have been used far to perfection.

In addition, in order to ensure a symmetrical arrangement of the heater inside the heater recess or wall section or the like, a connection device for the central connection of the heater has been proposed, which consists of the most compact housing with inlet and outlet connections and a connection for the heater. an appropriately adapted heater with

-2medial connection. Although the central heating connection device can be dispensed with from the connection section at the edge of the heating element, the central connection of the heating connection can be dispensed with, and the heating element must be extremely heavy, but this must be heavy and large. In practice, a device connected to the outlet of this, for example, additionally inside the heating plate arranged sufficiently heated by the connected heating plate in the middle of the connection not hide under the body. A device alcove for the device is also possible

In addition, just next to the body with the plate is this, the partition wall lies in order to ensure that the heat transfer medium to flow through the heating plate does not penetrate. predominantly immediately from the inlet to the outlet of the valve, so that the heater cannot function properly. However, this construction measure on the heating element is also very expensive and expensive.

Finally, valves, blind sockets and the like must be used in valve seats in known connection devices, and in particular in the above-mentioned connection device for the central connection of the radiator, the valve seats must be inserted into the connection device sockets. In this case, it is usually either soldered or a press fit or a similar method is used. However, the measures involved are also very expensive and expensive. Sealing surfaces, connecting threads, and so on, which contribute to the effective connection with the respective portions of the valve connected to the valve seat, must be made extremely clean and manufactured and arranged within small manufacturing tolerances. This is also a significant disadvantage of the known connection devices, and in particular also the connection device discussed above for the centrally connected heater.

A heating element is known from G 89 01 051.5,

-3in particular a radiator that is centrally connected to the duct system of the central heating system. The inflow and outflow of this heater begins essentially in the middle and ends at the upper or lower lateral end of the known heater. The heating element is here connected by means of a pre-fabricated box which, by its connection of a given type, serves as a spacer between the connecting pipes of the central heating system and the connecting pipes of a known heating element.

It is known from G 88 10 080.4 to weld a fitting for a radiator in dual-pipe heating systems having a valve, a connecting pipe and a connection body. A valve is provided in the outlet connection of the connection body of this known welded armature, which is considered perpendicular to the outlet connection of the outlet connection. In this case, the valve consists of a cylindrical body axially adjustable by means of a thread, which acts simultaneously with the corresponding transverse arrangement of the outlet connection. However, this device is designed only for a vertical, one-sided connection of the heater and cannot be used for the central connection of the heater.

DE-A-36 32 223 discloses a device according to the feature of claim 1. This has a housing arranged next to the inlet and outlet connection for supplying and discharging the heat transfer medium in the inlet and outlet, and which is arranged to receive the valve. The housing comprises a plurality of openings through which the heat transfer medium can be inserted into and removed from the heater. This heater connection device can also be connected only laterally to the heater, so that the above-mentioned embodiments also match with respect to the heater connection device.

SUMMARY OF THE INVENTION The object of the present invention is to provide a device for, in particular, the central connection of a heater which it does not have

-3a disadvantages mentioned above. In particular, the device according to the invention is intended to allow a central connection without extensive construction measures on the heating element. Furthermore, the heater with the connection device should be designed for a central connection which provides an optically positive impression and is easy to manufacture.

4. Summary of the Invention

This object is achieved by a device having the features set forth in claims 1 and a heater having the features set forth in claim 6.

Preferred embodiments of the device according to the invention or of the heating element according to the invention are based on the dependent claims.

Advantages achievable by the invention are that a first pipe section extends substantially about half the length of the heater to which the device is connectable between the inflow of the device and the at least one housing. In this way, although the heater is connectable at its center by means of a connecting device, the heat transfer medium enters at one end of the heater so that the danger does not require any short circuit for the flow of heat transfer medium. ensure the conduction of the heat transfer medium, especially water or the like.

Furthermore, according to the invention, at least one opening can be provided in the housing, through which the heat transfer medium can flow into the heater in a controlled manner, for example through the valve in question.

Further, the advantages attained by the invention are that the devices according to the body have at least and / or in the outlet, the invention for connecting the heating one sleeve arranged in the inlet, wherein at least one pipe section is arranged between the inlet connection and the sleeve, and the sleeve has at least one opening through which the heat transfer medium may flow in, and an additional housing is provided on the drain connection, in which, for example, a plug, valve or

-5possible mechanism.

It is particularly preferred that such a drain connection has a housing into which, for example, a plug, valve or the like can be attached. Furthermore, with regard to the conduction of the heat carrier and the stability and centricity of the device according to the invention, excellent advantages can also be achieved with the radiator if a second pipe section extends substantially over half the length of the radiator between the drain connection and the sleeve. attachable device. In this way, the heat transfer medium can flow at one end of the heater and be removed at the other end of the heater so that the heat transfer medium is forcibly guided throughout the heater and the radiating surfaces of the heater can be optimally utilized to require modification of existing heater. guide plates or similar parts.

Optically, a particularly advantageous impression is also obtained, in particular if the first and second pipe sections are designed in such a way that the device is substantially symmetrical with respect to the inlet and outlet connections. In this way, it is possible to arrange the heater, irrespective of the size in relation to the masonry recess or the like, always centric or symmetrical in the heater recess. Naturally, small deviations from the symmetry can be accepted, but should, in particular, lie only within the manufacturing tolerances.

The bushings considered at the inflow or outflow should be substantially, but in particular quite identical. This has the considerable advantage that one or both valves can be screwed onto both the inlet casing and the outlet casing, while one of the housings can also be blindly fastened by means of a flange on its valve seat. This way can be, as sometimes rare happens

-6when changing inlets and outlets inside a new or old building, or during renovation work, is simply interchanged by correspondingly screwing in the inlets and / or outlets, so that, without any construction or similar measures, the heating element must be removed and the valves replaced, the valve can be easily moved from one housing to another in order to ensure that the central connection of the heater is substantially correct. Likewise, the blind plug is pushed from one side to the other. Valve seats with valves in both housings may also be envisaged.

The inlet and outlet connections are arranged in particular on a common plate-like retaining device which can be fastened to the heating element and / or to the wall of the building or the bracket fastened in and / or on the wall of the building. In this way, not only the connection device according to the invention can be fixed to the associated heating element in an advantageous manner, but furthermore the heating element itself can be fixed by means of a correspondingly designed plate or screw holes and so on to the floor of the room or building or recess window panel for heating element.

The housings in which the valve or blind plug or the like can also be fastened have at least one, in particular two, essentially 90 degree angled portions relative to their respective supply, one housing neck being directed in particular in the direction of the attachable heating element or both or more sleeve necks are bent such that they are connectable to two or more plates of the panel heater.

Furthermore, it is also possible to connect the heating elements of the heating element, for example the plate heating plate, to each other and to connect the connection device according to the invention or its neck in the immediate vicinity,

- possibly at least in an effective connection, with these connecting pipes being provided on the heating element.

In particular, a valve seat or a blind connection seat or the like is screwed into the housings. Such a seat can then advantageously be used if the inner surfaces of the housing cannot often be manufactured with the required precision, so that sealing surfaces and the like can be provided which can be connected to the valve or the like in the desired manner. Therefore, a predetermined valve type can be adapted to various housings by means of different valve seats. In this case, the valve seat must always have sealing surfaces or grooves for sealing parts, such as O-rings or similar parts.

Particular advantages can be achieved here if the valve seat is manufactured at least locally by means of injection molded sections of plastic material. In particular, the sealing surfaces are predetermined for this method according to the invention.

For example, the valve seat may consist exclusively or nearly ¹ of injection molded plastic materials. In this case, a mandrel or injection tool is introduced into the housing and the cavities are ejected. At the same time, complicated shapes, such as rear cuts and the like, can also be created using corresponding tools. For this purpose, extensible tools are used which are inserted into the corresponding housing of the device according to the present invention and expanded. The plastic is injected, and after the plastic is at least partially cured, the expanded tool can be varied in its diameter or dimensions so that it can be pulled out of the injected shape or the injected valve seat or the like.

Furthermore, particular advantages arise when the injection surfaces, in particular the sealing surfaces and the like, are made of two,

But in particular more layers of plastic, the different layers of plastic having different properties. Thus, for example, one layer of hard plastic, for example hard PVC or the like, can be sprayed at least locally into the housing of the device according to the present invention, then soft plastic, rubber or the like could be applied thereafter at least to the sealing surface area. In order to improve the adhesion of the two layers, a means allowing a good adhesion or adhesion of the intermediate layer or the transition layer could be envisaged between hard and soft plastic or rubber material. It can also be formed by passing practically from one type of plastic to another in that, after finishing the hard plastic layer, a soft plastic is admixed continuously into the hard plastic until it is finally injected almost exclusively or only a soft plastic.

For special strength requirements, metal parts can also be injected into the plastic. Thus, for example, threaded sleeves or the like, which can be injected directly, or by means of an anchoring element, into a plastic layer can be provided in advance and optionally on an injection tool, which in particular can be expandable.

Comparable methods are known from EP 0 196 407 A1, EP 0 315 749 A1 and EP 0 235 396, the disclosure of which has also been made to the content of the patent application.

It goes without saying that the technique of spraying or spraying certain sections within connecting or heating fittings, water pipes and the like, especially in the heating industry, has quite considerable advantages, since it is no longer required to produce complicated and individual pieces. expensive saddles and similar parts made of brass and using complicated

-9a prone method steps to be fastened in the housing.

Of course, the outer regions of any fittings can also be sprayed with plastic in order to be able to produce a decent and corrosion-resistant exterior or connection device for the fittings without complicated machining steps. In conventional connection devices and similar devices, on the other hand, the desired exterior surfaces and, depending on the circumstances, the interior surfaces, are astonishing in order to ensure a somewhat pleasant exterior. However, the methods of chroming or chrome technology used are so unfavorable for the environment and for the health of the operators that, in the foreseeable future, chroming of fittings, connecting sets or similar devices will no longer be possible, or such work must be carried out by particularly poor protective workers. developing countries.

Therefore, the energy consumption of chrome plating is so disadvantageous that the cost of manufacturing the fittings is often reserved in excess of the aesthetically determined end work.

BRIEF DESCRIPTION OF THE DRAWINGS

In the following, the present invention will be explained in more detail with reference to the preferred embodiments using reference numerals in the accompanying drawings, which disclose further advantages and features of the present invention, showing in FIG. 1 shows a connection device according to the invention, partly in longitudinal section and partly in side view, FIG. 2 shows the embodiment of FIG. 1 in plan view, FIG. 3 shows a heating element, in particular a plate heating element, which is provided with a device provided according to the invention; FIG. 4 shows a heating element with a device according to FIG

10 of the invention contemplated at the lower end of the heater, FIG. 5 is a side view of a heater in which the apparatus of the present invention is also contemplated on the lower section of the heater; FIG. 6a shows a longitudinal section of the valve seat of the present invention; FIG. 6b shows a valve seat with a traditional sealing device according to the present invention; FIG. 7a shows a housing in which a valve seat or valve, with a connection socket, is inserted, partly in longitudinal section and partly in plan view, and FIG. 7b is a cross-sectional view of the housing of FIG. 7a, wherein the cross-sectional view of the openings through which the valve seat, in particular the valve seat of FIG. 6a, FIG. 6b.

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 1 shows a connection device 10, in particular for the central connection of a heater. The device 10 has an inlet or inlet 12 as well as an outlet 14, both mounted and possibly held in the mounting plate 24. Between the inlet and outlet connections 12, 14 and the bushings 20a always connected thereto. 20b, conduit sections 16, 18 are provided that connect respective housings to respective inlet and outlet connections 12, 14.

The duct sections 16, 18 together have approximately the length of the heater which is connected to the known device 10. Only the mounting distance considered on the plate 24 between the inlet and outlet connections can lead to the two pipe sections 16, 18 being shorter in their overall length than the heater to be connected, and the dimensions of the sleeves 20a can additionally be important in their dimensions. . 20b. or connecting ports 22 for aligning the valve seat or valve, see FIG. following pictures.

-11Cases 20a. 20b have four openings in each case. One of the first or second pipe sections is connected to one opening, for example by brazing, welding, or pressing. Two connection necks 24 are provided for the housing 20a. optionally, the housing 20b. by means of which the heater is connected to a pipe system, for example a central heating or similar device.

Opposite the respective orifices of the inflow or outflow, it is provided on the respective sleeves 20a. 20b, an aperture 22 that may immediately attach a valve or blind plug or the like, or may be formed to receive a valve seat or the like. In this case, it may be inside the housing 20a. 20b, a funnel-like device 21, such as a reduction, in which the valve seat can be tailored exactly, welded on or pressed in, but in particular at least adjusted.

The valve seat is required because the sealing surfaces and in particular the dimensionally stable sections of the pipe can hardly be formed in the sleeves 20a. 20b. or only with increased costs. A later insertable valve seat can be made at far more favorable cost, although mounting the valve seat inside the housing is rather relatively expensive than before.

In FIG. 2 is the apparatus of FIG. 1 from a different perspective. Similarly or functionally the same parts are given by the same reference numbers. This also applies to the following FIG. 3 to FIG. 7b.

In FIG. 2, the shape of the mounting plate 24 can be recognized from a different perspective, with mounting holes or mounting holes 24a being particularly visible. The throats 30 arranged on the sleeves 20a. 20b have at their free ends a noticeably pointed section. Such a section is particularly suitable for arc welding processes in which they are higher to very high

The pressure applied by the current is short-term generated by very high temperatures which lead to welding, especially without the appearance of a visible weld. It can also be seen that the cylindrical symmetrical axes of the pipe sections 16, 18, the mounting sleeves 22 and the connected sleeves 24 lie in the plane delineated by their cylindrical axes.

In FIG. 3 shows a heating element 100a according to the invention with a device 10 according to the invention, see FIG. 1 and FIG.

2. The heating element according to FIG. 3 is also shown in a plan view and a bottom view. The heating element 100a has in this case three heating plates 102. However, it is also possible to produce a corresponding heating element with only one heating plate, with two or four or more heating plates 102. Also, any other type of heating element can be correspondingly equipped with a connection device 10. and thereby become the object of the present invention.

The drain connection 14 is connected to the housing 20a by a pipe section 18. The sleeve 20a is directly or by means of a connection socket, as shown here, a tightly fitted or screwed valve 104. The sleeve 20a is connected to the heating plates 102 by means of the connection sleeves 30.

At the second connection point, that is to say on the drain side, the heating plates concerned 102 are mounted on the housing 20b in turn by means of the connection necks 30, and a blind plug 108 is provided or screwed in the housing 20b. The housing 20b is connected to the drain 12 by a pipe section 16.

The heat transfer medium, which is introduced into the heater by means of the inlet connection 12, flows through the pipe section 16 into the housing 20a and is braked there correspondingly to the closing or opening position of the valve 104 in its flow. The required flow rate flows through the connection ports 10. into the heating plates at one end into

-12a of the heating element, flows through the heating plates and is through

The connector ports 30 on the opposite side are led out of the heater 100a. The used or cooled heat carrier flows through the connection sleeves 30 and the housing 20b as well as the pipe section 16 to the outlet connection 14, and again into the pipe system downstream of the connections 12, 14 or the central heating pipe system.

The third heating plate 102 is connected to the connection device according to the invention by means of connection ports 25.

In this case, the mounting plate 24 has a size that is adapted to the heater so that the mounting plate can be aligned exactly between the welded edges of the heating plates. In this way, the mounting plate 24 is particularly suitable for cases in which the heater is to stand on the mounting plate 24.

Of course, the heater may alternatively or additionally be fastened by means of pressed sheets here without reference numerals, on wall brackets or tripods or similar devices placed on the wall or on the floor of a room or building. Naturally, the heater 100a can also be hung on the mounting plate 24 by its mounting holes.

In particular, the connection device shown has the advantage that there are no inlet and outlet pipes on the heating element 100a to be recognized laterally. Therefore, the inlet and outlet pipes of the central heating system pipework or the like can be centrally or centrally in the recess for the radiators, and the radiators arranged in the recess for the radiators also sit centrally in the recess, irrespective of their size. so that an aesthetically convincing impression is obtained. Therefore, the housings 20a, 20b can be formed identically, so that the valve 104 or the blind plug 108 can be easily interchanged in their mounting position so that any possible

-14 exchanges when installing a system with a building's heating pipe if, for example, the inlet and outlet have been changed.

In FIG. 4 and FIG. 5, a heater 100b is shown. which is provided with a central connection made according to the invention. Obviously, the central connection device at the heater 100b is arranged at the bottom. Otherwise, the components shown in FIG. 4 and FIG. 5 correspond to the components of FIG. 1 to FIG. Third

In FIG. 6a shows a valve seat as may be provided in the housing 20a. 20b. wherein the respective valve seat 50a. or 50b, see FIG. 6b. it may be introduced into the housing through the opening 22.

The valve seat 50a of FIG. 6a has, in principle, internal or external contours as required for the valve seat to be inserted in the sealing position into the housing 20a. 20b. Therefore, the valve seat has sealing surfaces which seal against the insertable valve.

In the valve seat 50a, sealing surfaces 52 are provided which are in sealing engagement, in particular with the free edges of the connection section 21 of the housing 20a. see fig.

Further, the valve seat 50a. into which opening 56 the respective valve can be inserted or screwed in, to enter into sealing engagement with the housing parts, or the connection section 21 or even the pipe section 18 or 16, via the further sprayed sealing surface 54a.

It is particularly advantageous if the complicated portions of the connection throat in the housing are first considered by injecting the connection throat into the respective housing 20a. 20b. If the connection socket is at least partially injected into its respective housing, no sealing problems can occur in advance. In addition, there is no complicated manufacture of the valve seat, whose sealing surfaces and whose flow openings allow only very small tolerances to allow sufficient tightness and, on the other hand, predetermined

Dispensing the heat carrier through the valve seat, controlled by a valve seated in the valve seat 50a.

In FIG. 6b shows the valve seat 50b. which corresponds in function to the valve seat 50a. however, instead of the injected sealing surfaces 52a, 52b of FIG. 6a are in the O-grooves 52b. 54b of the considered O-rings. Accordingly, quite a large portion of the valve seat 50b can be produced by a plastic spraying technique.

If the seals were 52a, 54a, see FIG. 6a, made by injection molding, the mechanically loaded portions having no sealing function can be made of a hard plastic such as PVC or the like, while the sections 52a. 54a, which are intended to have a sealing function, may be made of soft plastic, whereby the optional adhesive layer or transition layer may consist of a mixture of hard and soft plastic, optionally with additives. Further, sealing surfaces may also be contemplated by rubber vulcanization or similar methods.

Inexpensive production of such a throat or even any other inner linings of piping or heating fittings or similar devices, in particular injection molding tools which consist of movable elements are used, and in this way also allow complicated structures such as rear cuts or similar formations. Such tools are known in principle to the person skilled in the art, but are not used in the field of heating due to various difficulties.

Naturally, instead of applying the inner layers or spraying, these techniques can also be used to produce the outer contours of the connection fittings or the fittings themselves in a generally advantageous manner with plastic or additionally, whereby expensive, energy-intensive and environmentally damaging or poison-producing steps can be omitted. .

In FIG. 7a, 7b, the housings 20a are shown. 20b with connection ports 24 as well as openings 22, 28 for the valve seat or the respective pipe section 16, 18. A valve seat is fitted into the holes 22 of the desired geometry which, for the sake of control accuracy, must have a very accurate which corresponds as closely as possible to the geometry of the valve to be fitted.

In the combination shown, in particular but also in other useful combinations, the described features lead in particular to production-technical advantages and thus also to cost advantages. In addition, quite enormous progress can be made with regard to the environmental compatibility of manufacturing technology. The aesthetic impression of the heater connected centrally according to the invention can in itself be far better suited to the increased aesthetic demands, as is the case with known connection devices.

represents:

Claims (3)

PATENT CLAIMS 1. A heater connection device (10); - with inlet connection (14) for the heat transfer medium, - with a drain connection (12) for the heat transfer medium, - with connection ports (24) for connecting the radiator, - with a housing (20a, 20b) arranged in the inlet and optionally in the outlet, for example to receive the valve (104), wherein - the housing (20a) has at least one opening through which the heat transfer medium is regulated, for example by a valve (104), insertable into the heater (100a, 100b), and - a first conduit section (16) is provided between the inlet connection (12) and the housing (20a), characterized in that a second conduit section (18) is provided between the outlet connection (14) and the respective conduit 30, and that both sections The pipes (16, 18) always extend substantially over half the length of the heating body to which the device is connectable. Apparatus according to claim 1, characterized in that the first and second sections (16, 18) the conduits are such that the device (10) is substantially formed symmetrically. Device according to claim 1 or 2, characterized in that it is insertable into the housing or, where appropriate, the inlet and / or outlet connection (12, 14) is arranged on a In particular, a common plate present in a retaining device (24) which is mountable on the heating element (100a, 100b) and / or on the wall of the building, or in and / or the bracket fixed on the wall of the building. to 3, (20a, two to The device according to any one of the features 20b) each has at least one neck which is bent to its respective lead, one of which is arranged in particular in the direction of the body or both neckings (24) so that they are connectable to two or heating body plates (102). (100a, 100b), housings or housings j; (20a, 20b) at least one valve seat, one blind closure or the like, wherein the valve seat sealing surfaces (52a, 54a) are preferably sprayed and consist of a plastic material, a rubber material or a material or other support material. 'i ( Device according to claim 4, characterized in that the valve seat is partly made of plastic and / or is in the housing in the region of plastic transition layers of hardness, in its claim 1, in that the housings in particular always substantially 90 degrees of the neck of the housing (20a). 20b) the heating sleeves can be connected to a plurality of heating plates, in particular plate-shaped, in particular always insertable (50a, 50b) or at least (20a, 20b), whereby the sealing surfaces and the layers of the latex element consist (50a, 50b) immediately Optionally, a plastic is preferably injected with a plurality, in particular of two, being produced in particular by at least one successive layer or layers having a different layer or layers, the layers and transition compositions substantially continuously passing from the layer material to the layer material of the adjacent layer. A heater and in particular a plate heater with at least one cavity (102) suitable for guiding the heat transfer medium, in particular a heating plate (102), characterized by a device (10) according to any one of claims 1 to 5.