DE3202172A1 - Heating element for gas room heaters - Google Patents

Abstract

The invention relates to a heating element for gas room heaters for connection to an outside wall or for connection to a chimney. The aim of the invention is to eliminate the disadvantages attaching in particular to the heating elements with multiple connection possibilities and to improve the manufacturing prerequisites for the production of heating elements in different embodiments and output levels with stable functional parameters and positively to influence the hygienic environmental conditions in the operation of outside wall gas room heaters. The object of the invention is to design a heating element in the form of a modular system in such a manner that, by using basic and additional components, the different functions, such as connection to outside wall or chimney with single or multiple connection possibilities and different output levels, are developed and thus the manufacture of large production runs with a high degree of mechanisation is made possible. Associated with the division known per se of the heating element into a basic heating element and a secondary heating element is, as the essential feature of the invention, the varying arrangement of combustion-air and waste-gas shafts in association with separately lying guide pipes for combustion air and waste gas for outside wall connection or flow shafts with the possibility of connection of waste gas pipes for chimney connection. <IMAGE>

Description

Title of the invention

radiators for gas space heaters Field of application of the invention The invention relates to a radiator with a combustion air exhaust device and separately horizontal guide tubes for combustion air and exhaust gas for gas space heaters with external wall connection or a radiator with a flow safety device for gas space heaters with a chimney connection.

Characteristics of the known technical solutions Radiators for gas space heaters known solutions can essentially be divided into two with regard to their function subdivide groups: I-corpses, equipped with atmospheric burners, at those of the combustion process under atmospheric conditions and with natural Buoyancy runs or radiators, equipped with blower burners or with pull valve gates for the forced delivery of combustion air or exhaust gases. Gas space heater with forced draft burners or draft fans and radiators designed accordingly however, have not yet caught on due to increased device costs and noise pollution.

Radiators with atmospheric burners are more constructive in many ways Shape in the market to meet the different functional requirements to become.

So often the radiators differ essentially in their structural design in that it is suitable for an external wall or chimney connection are designed and that they only have a rear, lateral or multi-sided Allow connection.

However, all versions have certain common features.

There are heat-exchanging surfaces immediately above the burner present, where the hot exhaust gases bypassed and to an exhaust gas collection point be directed.

The task of all radiators is to utilize the heat content as much as possible the exhaust gases and the effective heating of the ambient air around the radiator Observance of the hygienic requirements when burning gases.

Achieving a high level of efficiency, hygienic combustion as well as the economic heating surface size of the radiator, based on the heating output of the gas space heater is directly dependent on the amount of available Buoyancy path, connected with an even distribution and guidance of the exhaust gases to the heat exchange losses of the radiator.

Well-known gas space heaters with and without atmospheric burners forced promotion of the combustion air or the exhaust gases therefore lead from above For reasons mentioned, the exhaust gases preferably come out in the upper area of the radiator in the combustion air exhaust system or the chimney to achieve a high lift distance to obtain. However, this results in gas space heaters with an external wall connection Environmental pollution. The connection of this embodiment of gas space heaters takes place often below or near windows. The outlet openings of the exhaust gases the Combustion air exhaust system is therefore mostly also very good close to the lower edge of the window.

Hygienic measurements on a known gas space heater for external wall connection according to DWP 58 581 have shown that oin part of the continuously over the combustion air exhaust system Exhaust gases discharged to the outside are sucked in through the joint openings in the windows, especially when there is little or no movement of the outside air due to wind and favored by the existing upflow of the hot exhaust gases.

In another known gas space heater for external wall connection, According to BRD-PS 1218687, the exhaust gases are discharged approximately in the middle area of the radiator. Here the hygienic conditions are improved, however the heat content of the exhaust gases is not used sufficiently.

Due to the special arrangement of the burner and the formation of guide plates, according to BRD-OS 2163081, efforts are made to ensure the efficiency under consideration of the brenrite: bni <h hygienic Vtr1i.'l ltiis increase.

Another characteristic of known external wall gas space heaters are the necessary combustion air exhaust systems for supplying the combustion air and evacuation of the exhaust gases through the outer wall. These combustion air exhaust systems mostly have pipe systems with pipes lying one inside the other, i. i.e., the exhaust pipe is arranged coaxially in the combustion air pipe. The levy is advantageous here part of the heat content of the exhaust gases to be discharged to the combustion air to be supplied and thus a slight increase in the degree of efficiency, but has a disadvantageous effect the high temperature difference between the heating state on the hygienic combustion process and steady state of the radiator or the entire system. Furthermore is not guaranteed that with the constantly changing wind pressure conditions the exhaust gases flowing out of the exhaust pipe do not partially coincide with the incoming gases Combustion air can be fed to the outer wall gas space heater.

Other known outer wall gas space heaters prefer combustion air exhaust systems with separate guide pipes for combustion air and exhaust gas.

In this embodiment, the continuity of the combustion is promoted and the proper conduction of the combustion air and the exhaust gases can be ensured will.

Further disadvantages of known gas space heaters, especially their radiators, consist in the lack of universality in their constructive training. To meet the requirements which result from the different connection conditions of the installation rooms, To meet this, it is necessary to have gas space heaters with various connection options to offer. So have known gas space heaters for external wall connection, in particular in the case of higher rated heating capacities, but mostly only one connection on the rear to the combustion air flue system, while gas space heaters for chimney connection up to five connection options are offered.

In the known gas space heaters for external wall connection, according to DWP 58 581 and BRD-PS 12188687, or for chimney connection, according to DWP 79 131 and BRD-OS 2600649, the radiators are designed so that.; Ie almost all requirements regarding suffice their connection option.

The radiators according to DWP 58 581 and BRD-PS 1218687 are made up of two made of deep-drawn shells and have laterally rotatable combustion air flue gas nozzles, whereby a multi-sided connection to the outer wall is realized. The offered variable connectivity is at the same time a disadvantage for the user, since this is only one, corresponding to the possibilities of the installation, Connection of the gas heater to the outside wall or the chimney is required.

The higher economic outlay required to manufacture gas space heaters with a multi-sided connection is therefore of no direct benefit to the user. Dcs further cnt: it incur additional installation costs for retrofitting the device on the connection conditions resulting in each case at the installation site.

Practice has also shown that when the user changes residence the gas space heaters mostly on theirs due to their considerable connection effort first place of installation.

In addition to the already mentioned disadvantage of the lack of efficiency of the Multi-sided connection for the user, the higher economic effort is marked through the use of high-quality sheet metal, additional sealing points on the rotatable Combustion air flue gas nozzle, which is used in industrial equipment assembly and the subsequent installation at the installation site are problematic, as well as the backup the perfect firing behavior taking into account a constant high efficiency with the alternating connections of the radiator with the burner fitting to the combustion air exhaust gas device, especially as in the case of the aforementioned radiators for external wall connection according to DWP 58 581 and BRD-PS 1218687 the combustion air dem Burner inside the radiator is fed from above.

More justified, however, is the effort involved in manufacturing gas space heaters with multi-sided connection to the chimney. There are different ones here Connection conditions due to the position of the chimneys and doors in the installation evacuate and the classification of Finrich1; llTlgst indden.

The radiators, according to DWP 79 131 and HKD-OS 2600649, are these Requirements, whereby the gas space heater is preferred for wall-binding.iL; er the side connections must be used, as the chimneys are mostly in are arranged in the corners of the installation rooms. Fixing problems arise often also due to the chimney cheeks protruding from the walls and the inadmissibility to insert fastening elements into the cheek cheek.

However, the manufacture of the said radiators also requires a considerable economic effort, since a radiator for a chimney connection Have an open combustion chamber and an undisturbed one by means of a flow safeguard and hygienically perfect combustion guaranteed with all connection options must become.

OBJECTIVE OF THE INVENTION The aim of the invention is to remedy the disadvantages mentioned to be eliminated, but the connection conditions existing in practice must be taken into account with a simultaneous reduction in material and production costs and costs for the user. Furthermore, the functional parameters are to be better secured, To positively influence the hygienic environmental conditions and the production requirements to improve.

Statement of the essence of the invention The object of the invention is to be found based on a radiator for a gas space heater for a one-sided and / or multi-sided Make outer wall or chimney connection in such a way that it is in its constructive Training is similar to a Bauka: .lt system, which is based on the use of basic building blocks and special additional modules develop the various functions and so that the prerequisites are created for manufacturing large production rates with a high degree of mechanization or partial automation, low retooling and manufacturing times and stable production flow.

Further essential tasks are the reduction of the radiator dimensions and thus the device dimensions; optimal heating surface utilization and achievement of a high efficiency while maintaining stable hygienic combustion parameters; Reduction of the matorial qualities and use of the lead body for various (1st I, PERFORMANCE STUDIES.

Furthermore, the task of training animal corporations is impressive for gas space heaters with external wall connection by improving the exhaust gas tightness and Shortening the buoyancy path to positively influence the hygienic environmental conditions.

The essential feature of the invention that the radiator from a basic heating element known per se with an after-heating element consists and that in the upper region of a supporting wall of the basic heater one or more exhaust gas overflow nozzles are arranged that connect the basic heater to the post-heater and a combustion air opening for the outer wall connection in the lower area of the supporting wall is covered by a combustion air shaft, the combustion air shaft Provided with a connection piece for the connection of a combustion air duct is and the post-heating element in its lower area for connection of an exhaust gas duct pipe has an exhaust gas connection piece and / or the after-heater by means of a further exhaust gas overflow nozzle connected to a side wall of the basic heater and the resulting exhaust opening of the side wall is covered by an exhaust duct is, wherein the exhaust shaft for the connection of an ADGasleitrohrcs with a connection piece is provided and in the lower area of the side wall a combustion air opening is covered by a further combustion air shaft, the cross-cutting Air shaft for connecting the combustion air duct with a connecting piece provided or for the chimney connection uer after-heating element by means of the exhaust gas overflow nozzle connected to the side wall of the basic heating body and the exhaust gas opening of the side wall is covered by a otrömungsshacht, ar flow shaft for connection an exhaust pipe is provided with a connection piece and the supporting wall in the lower Has combustion air openings area and / or on its underside.

Another feature of the invention is that in the upper area the supporting wall of the Grundheislröryer for the outer wall connection through an exhaust gas opening a Nachheizschacht is covered, wherein the Nachheizschacht to connect the Exhaust pipe with a connection piece or the exhaust opening for the chimney connection is covered by a flow shaft, the flow shaft for connection an exhaust pipe is provided with one or more connecting pieces.

Another feature of the invention is that to the right or left-hand outer wall or chimney connection of the heating body after rotating about its vertical axis, the side walls of the basic heating element for attachment of supporting, shielding and cladding elements are designed symmetrically.

The invention is explained in more detail below using exemplary embodiments will.

The accompanying drawing shows: Fig. 1: The view of the radiator for multi-sided external wall connection, connected on the right-hand side; Fig. 2: the section of the radiator with rear external wall connection according to the line A - A of Fig. 1; Figures 3 and 4; the top view of the radiator for right-hand and left-hand External wall or chimney connection; i? ig. 5: the rear view of the radiator without post-heating element for rear connection to the exterior wall; Fig. 6: the top view of the radiator set without after-heating element for rear connection to the exterior wall; Fig. 7: the section of the radiator set without after-heating element for the upper chimney connection; Fig. 8: the partial view of the radiator with the chimney connection on the right.

Main components of the basic heater 1 are a heating wall 28, a Support wall 23 and the side walls 16, 17, which are permanently connected to one another, e.g. by resistance; welding, and after the joining process a combustion chamber and a Form exhaust gas duct.

To supply the combustion air is rich in the lower 13e the support wall 23 of the basic heater 1, the combustion air opening 20, which by means of of the combustion air shaft 5 is covered. For connecting a combustion air duct 13, the combustion air shaft 5 is provided with the connecting piece 24.

The main components of the after-heater 2 are an exhaust gas heating chamber 29 and a closure plate 30. The after-heating element 2 is detachable or non-detachable on the Basic radiator attached, with the attachment points at the same time as exhaust gas overflow stubs 11, 12 are executed. In the lower area of the sealing plate 30 of the after-heater 2 the exhaust gas connection piece 9 is arranged for connecting the exhaust pipe 14, The above description clarifies the size and structure of the body in the embodiment of the rear external wound connection according to-Fig. 2 with its shortened Lift section.

The exhaust gas overflow nozzle is located in the exhaust gas collecting space 29 of the after-heating element 2 10 is used, which is connected to the side wall 17 of the basic heater 1 The exhaust port 26 at the connection point is used for the lateral or multi-sided outer wall connection according to FIGS. 3 and 4 or according to FIG the exhaust duct 7 covers or for the chimney connection according to FIG. 8 through covers the flow duct 3.

On the exhaust duct 7 and the flow duct 3 are located in each case the connecting piece 24 for receiving the exhaust pipe 14 or the exhaust pipe 18th

For the lateral or multi-sided external connection is in the lower In the area of the side wall 17, the combustion air opening 21 through the combustion air shaft 6 covered, which is also with the connection piece 24 for receiving the combustion air duct pipe 13 is provided.

The supply of combustion air for the chimney designs, 7 and 8, takes place through the combustion air openings 20 and / or -82, which in the lower area and / or on the underside of the supporting wall 23 are arranged for modified radiator designs, especially those With lower heating outputs, the post-heating element 2 is not required.

As shown in FIGS. 5 and 6, the exhaust port 27 is the basic heater 1 covered by the Nachheizschacht 8 and with the connecting piece 24 for receiving of the exhaust pipe 14 and made possible with the combustion air shaft 5 the rear outer wall connection, while for the chimney connection according to Fig. 7 the exhaust gas opening 27 is covered by the flow duct 4.

The chimney connection, in Fig. 7 as the upper connection of the exhaust pipe 19 shown on the flow shaft 4 depends on the functional-constructive Design of the flow section 4 and can also be done on the side or on the rear.

The combustion air exhaust device 15 with the separately located Guide tubes for combustion air and exhaust gas 13, 14 is shown in Figs. 1 and 2 Darg estellt. As an advantage, both for the functional and constructive training of the Radiator as well as the economic use of materials, has become known per se separate execution of guide tubes for combustion air and exhaust gas for the according to the invention Solution.

The separate design favors the continuity of the combustion, because the combustion air is supplied to the burner with a small temperature difference and the perfect conduction of the combustion air and exhaust gases with the constantly changing Wind pressure conditions can be better secured. This creates a continuity to maintain the hygienic values. with all G; tsartkn to be used and thus a reduction in environmental pollution is achieved.

Furthermore, the use of two separate guide tubes also simplifies smaller diameter compared to the previous conventional Construction the technological processes for the manufacture of the heating element and reduces that Build volume of outer wall gas space heaters.

FIGS. 1, 2, 7 and 8 show the supply of the combustion air at the exterior wall and chimney design.

The exhaust gases produced by the combustion become intense Dissipation of their heat content in the basic heating element 1 and passed up to the exhaust gas openings 11, 12 or 27 in the after-heating element 2 or in the after-heating shaft 8 or flow shaft 4 led ,. In the after-heater 2, the exhaust gases are routed down to the exhaust gas connection piece 9 or to the exhaust gas overflow nozzle 10.

The after-heating element 2 is used at the same time to further release the heat content the exhaust gases are used.

The one made to improve the hygienic environmental conditions The shortening of the lift distance is illustrated in Fig. 2, for example.

Practical tests carried out here have shown that when using of atmospheric burners and without forced delivery of the exhaust gases or the Combustion air has the task of shortening the lift distance without impairment the requirement for hygienic combustion and high efficiency, only if certain criteria are observed in the structural design of the radiators is achieved.

It was found that the majority of the heat content of the Exhaust gases are already given off at the heat exchange surfaces of the basic radiator, that the transfer of the exhaust gases from the basic heating element to the post-heating element is essential must take place in the uppermost area of the basic radiator, otherwise circulation part of the exhaust gases in the basic radiator uses, which disrupts the hygienic Incineration leads.

It was also found that the position and number of the exhaust gas overflow nozzles and the cross-section of which significantly influences the heat distribution and efficiency can be, but the position of the exhaust opening on the after-heater is not decisive for the functional training of the after-heater. An unsymmetrical location the exhaust gas opening to the exhaust gas overflow nozzle e.g. through use of flow baffles in the post-heater or different cross-sections the exhaust gas overflow connection must be compensated.

When attaching an outer wall gas space heater with one according to the invention fitted radiator below a window, the distance between the The exit area of the exhaust gases from the outer wall and the lower edge of the window is enlarged.

This causes the increase in distance; that in the area of the window joints a very strong dilution of the exhaust gases or mixing with the ambient air has occurred.

The into the room where the outside wall gas space heater is installed through the Air penetrating window joints is therefore practically relieved of exhaust gases to the extent that that an impairment of the indoor air of the installation room is avoided hygienic conditions are improved.

Due to the structure of the radiator according to the invention with its per se known breakdown into a basic and post-heating element and the addition of special ones Chutes for combustion air and exhaust gas as well as the use of separate ones A universal design is made possible by guide tubes for the exterior wall design.

By attaching an exhaust gas connection piece to the post-heating element and a combustion air duct on the basic radiator is the most common Arriving rear external wall connection realized.

By using two identical ducts for supplying the combustion air or for the removal of the exhaust gases, attached together on a side surface of the basic heating element, allows the radiator to be connected to the outside wall at the side.

Thus, one can meet the requirements for the various external wall connection options without any higher economic outlay for the manufacturer and user while at the same time increasing the exhaust gas tightness by dispensing with rotatable exhaust gas connections and the elimination of the installation conversion effort.

If necessary, the rear and side outer wall connection is also possible can be produced on a radiator, with the aid of additionally attached implementable Sealing cover closes the combustion air / exhaust gas openings that are not required in each case will.

For the chimney design, in contrast to the shafts for combustion air and exhaust gas, a shaft open to the installation room, which is designed as a flow safety device on a side surface of the basic heater appropriate.

The radiator shapes for the lateral external wall and chimney connection thus have the same structure and differ in their special.-lusgebiltleten Layer.

In other embodiments, especially radiators for smaller ones Heating output, the post-heating element can also be provided through a post-heating shaft, e.g. for a rear outer wall connection, or through a flow duct, e.g. for an upper exhaust connection to the chimney, often used for kitchens and Bathrooms and other small rooms are replaced.

The above description of the radiator training options shows that the solution according to the invention meets the requirements for more extensive use Rationalization means and thus high production series creates and a variable Production range of different device types and performance levels enables.

List of the reference symbols used 1 basic heater 2 post-heater 3, 4 flow ducts 5, 6 combustion air ducts 7 flue gas duct 8 reheating duct licht 9 exhaust gas connection nozzles 10, 11, 12 exhaust gas overflow nozzle 13 combustion air duct 14 exhaust pipe 15 combustion air exhaust device 16, 17 side walls 18, 19 Exhaust pipes 20, 21, 22 combustion air openings 23 support wall 24, 25 connecting pieces 26, 27 exhaust gas openings 28 heating wall 29 exhaust gas collecting space 30 sealing plate L. e e r e i t e

Claims (3)

Invention claims radiator with combustion air exhaust device and separate guide tubes for combustion air and exhaust gas for gas space heaters with external wall connection or radiator with flow protection for gas space heater with Chimney connection, consisting of a basic heating element and an after-heating element, characterized in that in the upper region of a supporting wall (23) of a basic heating element (1) one or more exhaust gas overflow nozzles (11, 12) are arranged which have a connection of the basic heating element (1) with an after-heating element (2) and in the lower In the area of the supporting wall (23) a combustion air opening (20) through a combustion air duct (5) is covered, the combustion air shaft (5) for connecting a combustion air duct (13) is provided with a connecting piece (24) and the after-heater (2) in his lower area for the connection of an exhaust pipe (14) an exhaust gas connection piece (9) and / or the after-heating element (2) by means of an exhaust gas overflow nozzle (10) connected to a side wall (17) of the basic heater (1) and the exhaust gas opening (26) of the side wall (17) is covered by an exhaust duct (7), the exhaust duct (7) to connect the exhaust pipe (14) with the connecting piece (24) and in the lower area of the side wall (1?) a combustion air opening (21) is covered by a combustion air shaft (6), the combustion air shaft (6) for connecting the combustion air duct (13) to the connecting piece (24? is provided or the post-heating element (2) by means of the exhaust gas overflow nozzle (10) connected to the side wall (17) of the basic heater (1) and the exhaust gas opening (26) of the side wall (17) is covered by a Strömunjis shaft (3), wherein the flow duct (3) for connecting an exhaust pipe (18) to the connecting piece (24) is provided and the supporting wall (23) in the lower area the combustion air opening (20) and / or on their underside combustion air vents (22) owns. 2. Radiator according to item 1, characterized in that in the upper In the area of the supporting wall (23) of the basic heating element (1) an exhaust gas opening (27) a Nachheizschacht (8) is covered, wherein the Nachheizschacht (8) for connection of the exhaust pipe (14) is provided with the connecting piece (24) or the exhaust gas opening (27) is covered by a flow shaft (4), the flow shaft (4) for connecting an exhaust pipe - (19) with one or more connecting pieces (25) is provided. 3. Radiator according to item 1, characterized in that the right or left-hand connection of the radiator after rotation around its vertical axis, the side walls (16, 17) of the basic heater (1) for attaching support, shielding and Cladding elements are designed symmetrically.