EP0627063A1

EP0627063A1 - Heating device with a stove body composed of sheet-metal components.

Info

Publication number: EP0627063A1
Application number: EP93903703A
Authority: EP
Inventors: Karl Stefan Riener
Original assignee: RIKA METALLWAREN
Current assignee: RIENER, KARL STEFAN
Priority date: 1992-02-18
Filing date: 1993-02-18
Publication date: 1994-12-07
Anticipated expiration: 2013-02-18
Also published as: WO1993016332A1; EP0627063B1; ATA28592A; DE59306791D1; DE9390017U1; AU3485293A; AT405094B; ATE154687T1

Abstract

The invention describes a heating device (1) with a solid-fuel stove body (4) consisting of a plurality of sheet-metal components (6, 10) and has at least one stoking aperture (15) and an outlet for flue gases, takes the form of a heating module (30) and is made up substantially of two sections (31, 32) consisting of bevelled plate components. Here, one section (32) is U-shaped and the other (31) L-shaped in cross-section. The two arms (37, 38) projecting from the web (36) of the U-shaped section (32) and one arm (33) is U-shaped and of the other section (31) face one another and are arranged in mutually perpendicular planes. The front edges of one section (32) are secured, and especially welded, to the arm (33) of the other section (31). The longer arm (33) of the L-section (31) forms a front wall (34) and its shorter arm (35) a cover plate (16) for the heating module (30), whereas the two arms (37, 38) of the U-section (32) form sidewalls (8, 9) and its web (36) a rear wall (7) of the heating module (30), and the width (39) of the front wall (34) is greater than the outside width (40) of the U-section (32).

Description

Heating device with a furnace body composed of sheet metal elements

The invention relates to a furnace as described in the preamble of claim 1.

From DE-OS 34 41 896 by the same applicant, a heating device with a furnace body composed of several sheet metal elements with a combustion chamber for solid fuels is known, in which a heating module is essentially composed of two profiles formed by bent sheet metal blanks . One of these two profiles is approximately U-shaped, while the other has an L-shaped cross section.

The two profiles are rotated by 90 ° to one another, pushed into one another and connected to one another, in particular welded, in the region of their contact surfaces of the side edges.

This construction of a heating device has proven itself very well, however, it was not always possible to avoid the presence of visible weld seams in the viewing area of the furnace, ie in the area of the front wall.

The present invention is based on the object of providing a heating device in which no weld seams can be seen when viewed from the front wall and, preferably, these are also not seen when viewing the heating device from one of the side walls.

This object of the invention is achieved by the features specified in the characterizing part of patent claim 1. It is advantageous in this embodiment that the connections between the U-shaped and the L-shaped profile are covered by the cover plate of the heating device and are therefore invisible to an observer who looks at the furnace in the direction of the front. In addition, when welding the U-shaped and the L-shaped profile with fillet welds, sufficiency can be found can.

Training as described in claim 2 is also possible. As a result, the surface elements forming the heating module are positioned one inside the other during assembly and complex clamping devices for carrying out the welding process are saved.

An embodiment according to claim 3 is also advantageous because it avoids manufacturing processes, in particular very cost-intensive welding processes.

An advantageous further development is described in claim 4, because it achieves perfect and gas-tight welding, which can also be carried out in particular for medium to large series of welding robots.

An embodiment according to claim 5 is also possible because the cost of producing a large number of externally different furnace types is thereby kept low.

Another advantage is an embodiment according to claim 6, which provides a variable design option for the external appearance of the furnace.

However, an embodiment according to claim 7 is also possible because additional holding elements and costs for the installation of such additional holding elements are saved.

An advantageous development describes claim 8, whereby multiple use of the heating device is achieved as a space heater and cooking or warming device.

An embodiment according to claim 9 is advantageous, as a result of which an inexpensive design of the heating device with the warming compartment arranged in the area of the cutout is achieved. An embodiment according to claim 10 is possible, whereby a good use of heat for the cooking and keeping warm function and a long-term storage effect for the thermal energy is achieved.

A further development according to claim 11 is advantageous because it provides a variable design of the heating device in accordance with the respective use as a heating or cooking device.

A further advantageous embodiment is described in claim 12, in which heat accumulation is achieved in the area of the warming compartment provided with the top plate, whereby the efficiency of the heating device is improved.

An advantageous further development is described in claim 13, whereby additional heat is withdrawn from the flue gases, which is supplied to the surroundings of the heating device and thus the efficiency of the heating device is increased and a harmful load on the chimney due to excessive temperature of the flue gases is avoided .

Finally, however, an embodiment according to claim 14 is also possible, as a result of which the flow velocity of the flue gases is reduced and thus for the residual heat utilization of the thermal energy contained in the flue gases, construction height for the flue gas outlet is saved.

For a better understanding of the invention, this will be explained in more detail with reference to the exemplary embodiments shown in the drawings.

Show it:

Figure 1 is a front view of an oven designed according to the invention.

2 shows a heating module of the furnace according to the invention in a simplified, schematic representation;

3 shows the furnace according to the invention formed from the heating module in plan view; 4 shows a part of the oven according to the invention equipped with a warming compartment and a top plate, in front view;

5 shows a side view of a flue gas outlet of the furnace according to the invention, which is designed as a convection radiation body;

6 shows the convection radiation body in a side view;

7 shows a cladding element of the furnace according to the invention, cut along the lines VII-VII in FIG. 8;

8 shows the cladding element in a side view according to lines VIII-VIII in FIG. 7.

1 shows a heating device 1 in which a furnace body 4, which surrounds a combustion chamber 2 and possibly a holding compartment 3 arranged above it, essentially consists of a sheet metal element 6 forming a front module 5 and one forming a rear wall 7 and side walls 8, 9 Sheet metal element 10 is formed. In the direction of a contact surface 11, the furnace body 4 is delimited by a base plate 12 which has a sheet metal frame 13 which surrounds the furnace body 4 on its circumference. Arranged in the front module 5 is a loading opening 15 which can be closed by at least one firebox door 14 and which is followed by a cutout 17 for the warming compartment 3 in the direction of a bevel which forms a cover plate 16 and runs in the direction of the rear wall 7. In order to delimit the warming compartment 3 from the combustion chamber 2 or a flue gas duct 18, in the cutout 17 a stovetop 19 which runs essentially parallel to the base plate 12, in particular made of cast iron, is arranged, the delimitation of the cutout 17 in the direction of the side walls 8, 9 and the cover plate 16 is formed by an essentially C-shaped profile 20 and which is welded to the front module 5 in the region of the cutout 17. On the cover plate 16, a flue gas outlet 21, which is connected to the combustion chamber 2 or flue gas duct 18, is arranged. Cladding elements 22, 23 are detachably connected to the side walls 8, 9. B. made of sheet metal, ceramic elements, plastic elements are formed.

The combustion chamber 2 is delimited in the direction of the base plate 12 by a combustion chamber grate 24, one in the area between the base plate 12 and the combustion chamber grate 24, the one with a frame element 25

Glass pane 26 provided firebox door 14, hidden ash drawer 27 is arranged, which is accessible through the loading opening 15 after opening the firebox door 14.

A further optional embodiment of the heating device 1 provides, preferably in the cutout 17 forming the warming compartment 3, a ceramic plate 28 arranged on the hotplate 19 and a concave domed top plate 29 covering the warming compartment 3. It is provided that the ceramic plate 28 as the top plate 29 are detachably connected to the furnace body 4.

FIGS. 2 to 4 show the furnace body 4 designed as a heating module 30. This is through the sheet metal element 6, as a substantially L-shaped, right-angled profile 31, the sheet metal element 10, a substantially U-shaped right-angled profile 32 and the ^~ ~ C-shaped profile 20 and provided with the sheet metal frame 13 Boden¬ plate 12 and the hot plate 3 defining the hot plate 3 from the combustion chamber 2 hob. The profile 31 having the L-shaped cross section, the profile 32 having the U-shaped cross section and the C-shaped profile 20 are each made from bent sheet metal blanks.

A longer leg 33 of the L-shaped profile 31 forms the front wall 34 and a shorter leg 35 running at right angles thereto forms the cover plate 16. The U-shaped profile 32 forms the rear wall 7 with a web 36 and with legs 37, 38 the side walls 8, 9. A width 39 of the profile 31 is greater than an outer width 40 of the profile 32, whereby side edges 41, 42 outer sides 43, 44 of the legs 37, 38 of the profile 32 by a distance 45 of half the difference between corresponds to the width 39 and the outer width 40. This distance 45 is approximately the same size as the thickness 46 of the profiles 31, 32, as a result of which, in the area of an overhang 47 formed by the distance 45, welding can be carried out with a fillet weld seam 48, which after the cladding elements 22, 23 have been installed on the legs 37, 38 forming side walls 8, 9 cannot be seen by an observer.

In the front wall 34 there is also the loading opening 15 and the cutout 17 for the warming compartment 3, which extends through the L-shaped edge of the profile 31 into the cover plate 16 and in the direction of the web 36 forming the rear wall 7 . In this cutout 17, the C-shaped profile 20 with a web 49 faces the rear wall 7 and is inserted with legs 50, 51 facing the side walls 8, 9 and via a fillet weld 52 with an inner surface 53 of the cover plate 16 and an inner surface 54 of the front wall 34 welded. The legs 50, 51 of the C-shaped profile 20 have, at the ends 55, 56 with a lower edge 57 of the cutout 17, parallel extensions 59, 60 pointing in the direction of a symmetry axis 58, on which the hotplate 19 seals tend, e.g. B. with the interposition of a refractory seal 61 and z. B. is connected via screw connections 62 to the extensions 59, 60.

Furthermore, the front module 5 in the cover plate 16 in the area between the cutout 17 and the rear wall 7 and approximately in the middle between the side walls 8, 9 has an approximately circular opening 63 of a flue gas outlet 64 from the combustion chamber 2 or the flue gas duct 18 on. A pipe socket 65 is fastened concentrically to this opening 63 on the cover plate 16. The outer sides 43, 44 of the legs 37, 38 of the profile 32 have coupling element 66 of a coupling device 67 for the detachable fastening of the cladding elements 22, 23. These coupling elements 66 are e.g. B. formed hook-shaped, in which the cladding element carriers 68, connected to the cladding elements 22, 23 engage and releasably position the cladding elements 22, 23 on the side walls 8, 9.

The top plate 29, which covers the warming compartment 3, is Substantially formed from a concavely curved sheet metal blank, in which the part projecting beyond the cover plate 16 is closed in the direction of the rear wall 7 by a sheet metal element in the form of a segment of a circle. The top plate 29 is detachably connected to the heating module 30 via a spring arrangement 69. In the area which projects beyond the cover plate 16 and faces the front wall 34, the top plate 29 has an end panel 70 which, for. B. is made of sheet metal, glass, etc. and which is connected to the top plate 29 via a hinge arrangement 71 and can be pivoted about this in a plane parallel to the hob 19, as shown in dashed lines.

5 and 6, the flue gas outlet 21 is shown. This is a box-shaped attachment which is welded from sheet metal blanks and which, as a convection radiation body 72, has ribs 75 on outer side surfaces 73, 74 to enlarge the radiation surface in the direction of its longitudinal extension, which are connected to the outer side surfaces 73, 74 via weld seams 76. At an end region 77 facing the heating device 1, the smoke-tight, box-shaped convection radiation body 72 has a pipe socket 78 for the pipe socket 65 arranged on the heating device 1. An opening 79 in a rear wall plate 80 running parallel to the rear wall 7 of the heating device 1 forms a flue gas outlet 81 from the convection radiation body 72. A front cladding 82 running approximately parallel to the rear wall plate 80 extends in an end 83 opposite the end region 77 in a circular arc in the direction of the Rear wall plate 80. In this arch-shaped area, the front cladding 82 has a closure plate 84, which is detachably connected to the front cladding 82, for a cleaning opening 85. In a flow cross section predetermined by the pipe socket 78 for the flue gas, a baffle device 86 is arranged formed by a baffle plate 87 which has a width 88 which corresponds to a clear width 89 of the flue gas outlet 21. This covers the pipe socket 78 in the direction of the rear wall plate 80 and runs obliquely inclined in the direction of the end 83 and forms an angle 90 between 15 ° and 30 °, preferably 25 °, with the front cladding 82.

The outflow of the flue gas is delayed by the storage device 86. device, whereby the residual heat contained in the flue gas is used. In addition, the cooling of the flue gas prevents overheating in the area where the flue gas is introduced into the chimney.

7 and 8 show an embodiment variant of the cladding element 22, e.g. B. formed from a plurality of hinge assemblies 91 lined up ceramic elements 92 shown. This link-band arrangement of the ceramic elements 92 enables a compact shipping volume. Of course, this embodiment variant can also be used for cladding elements 22 made of sheet metal, plastic, etc. As further shown, the cladding element 22 has cladding element carrier 93 with coupling elements 94, with which it can be detachably and easily exchanged with the heating device 1.

Finally, it should also be pointed out that in each case individual combinations of features described in the individual exemplary embodiments, in particular those characterized in the subclaims, can also represent independent, separate training according to the invention.

Furthermore, for better understanding of the function of the heating device according to the invention, parts thereof are shown schematically and in a non-proportional relationship to one another.

B e Z u g s z e i c h e n a u s t e l l u n g

1 heater 41 side edge

2 combustion chamber 42 side edge

3 warming compartment 43 outside

4 furnace body 44 outside

5 front module 45 distance

6 sheet metal element 46 thickness

7 rear wall 47 overhang

8 side wall 48 fillet weld

9 side wall 49 web 10 sheet metal element 50 legs

11 footprint 51 legs

12 Base plate 52 fillet weld

13 sheet metal frame 53 inner surface 14 combustion chamber door 54 inner surface

15 loading opening 55 front end

16 cover plate 56 front end

17 Section 57 lower edge 18 flue gas duct 58 axis of symmetry

19 hob 59 extension

20 profile 60 extension

21 Flue gas extraction 61 Seal 22 Cladding element 62 Screw connection

23 cladding element 63 opening

24 combustion chamber grate 64 flue gas outlet

25 frame element 65 pipe socket 26 glass pane 66 coupling element

27 Ash drawer 67 Coupling device

28 ceramic plate 68 cladding element support

29 top plate 69 spring arrangement

30 heating module 70 faceplate

31 Profile 71 hinge arrangement

32 Profile 72 convection radiator

33 legs 73 outside surface

34 front wall 74 outer side surface 35 leg 75 rib

36 bridge 76 weld

37 legs 77 end region

38 legs 78 pipe socket 39 width 79 opening

40 External width 80 back panel 81 Flue gas outlet

82 front cover

83 end

84 Closing plate 85 Cleaning opening

86 stowage device

87 baffle plate

88 width 89 width

90 angles

91 hinge arrangement

92 ceramic element 93 cladding element carrier

94 coupling element

Claims

Patent claims

1. Heating device with a furnace body composed of several sheet metal elements with a combustion chamber for solid fuels, which has at least one loading opening and an outlet for flue gases, and is designed as a heating module and is essentially composed of two profiles formed by bent sheet metal blanks, from which one profile has an approximately U-shaped cross section and the other profile has an L-shaped cross section, the two from the web of the U-shaped projecting leg and one leg of the other profile facing each other and being arranged in mutually perpendicular planes, and the web of the U-shaped profile and the further leg of the L-shaped profile are arranged in mutually parallel planes and end edges of one profile are connected, in particular welded, to the leg of the other profile, characterized in that the longer leg (33) of the L-shaped profile (31) one Front¬ wall (34) and the shorter leg (35) forms a cover plate (16) of the heating module (30), whereas the two legs (37, 38) of the U-shaped profile (32) side walls (8, 9) and the web (36) of the same form a rear wall (7) of the heating module (30) and a width (39) of the front wall (34) is greater than an outer width (40) of the U-shaped profile (32).

2. Heating device according to claim 1, characterized in that on the shorter leg (35) of the L-shaped profile (31) is provided a projection parallel to the longer leg (33) in the same direction as this over the shortened leg (35) is.

3. Heating device according to claim 1 or 2, characterized gekennzeich¬ net that the L-shaped and / or the U-shaped profile (31, 32) are integrally formed.

4. Heating device according to one or more of claims 1 to

3, characterized in that side edges of the legs (37, 38) of the U- Shaped profile (32) and the web (36) on the facing surfaces of the legs (33, 35) of the L-shaped profile (31) and are connected to each other via fillet welds (48).

5. Heating device according to one or more of claims 1 to

4, characterized in that coupling devices (67) for cladding element carriers (68, 93) are arranged on the outer sides (43, 44) of the side walls (8, 9) of the heating module (30).

6. Heating device according to one or more of claims 1 to

5, characterized in that the cladding element supports (68, 93) are equipped with coupling elements (66) of the coupling device (67) which are opposite to the heating module (30) and holding devices for those made of different materials, e.g. Tiles, sheet metal, glass fiber-reinforced plastic or similar cladding elements (22, 23) formed, the cladding elements (22, 23) preferably being connected to one another in the longitudinal direction via releasable coupling elements or hinge arrangements (91).

7. Heating device according to one or more of claims 1 to

6, characterized in that the cladding elements (22, 23) or the cladding element carrier (68, 93) are inserted between a sheet metal frame (13) encircling in the area of a base plate (12) and the side walls (8, 9) of the heating module (30) are.

8. Heating device according to one or more of claims 1 to

7, characterized in that a cutout (17) is arranged in the corner region between the short and long legs (33, 35) of the L-shaped profile (31).

9. Heating device according to one or more of claims 1 to

8, characterized in that the parallel to the side walls (8, 9) and the rear wall (7). running sides of the cutout (17) are welded to legs (50, 51) of a C-shaped profile (20) arranged on the inside of the L-shaped profile (31).

10. Heating device according to one or more of claims 1 to

9, characterized in that the opening of the cutout (17) running parallel to the base plate (12) is closed by a hotplate (19), in particular a cast plate which is screwed tight.

11. Heating device according to one or more of claims 1 to

10, characterized in that the hob (19) is designed for releasable recording of a ceramic plate (28) or fireclay cladding.

12. Heating device according to one or more of claims 1 to

11, characterized in that the cutout (17) in the short leg (35) of the L-shaped profile (31) is closed by a concavely curved or saddle-roof-shaped top plate (29).

13. Heating device according to one or more of claims 1 to

12, characterized in that a flue gas outlet (21) is designed as a convection radiation body (72), ribs (75) being arranged on outer side surfaces (73, 74), which are welded in particular to the outer side surfaces (73, 74) .

14. Heating device according to one or more of claims 1 to

13, characterized in that the flue gas discharge (21) in a flow cross-section has a stowage device (86) formed by a baffle plate (87) for the flue gas.