EP1431666A1 - Mounting system for a floor standing stove and floor standing stove - Google Patents

Abstract

The system is used to construct a basic oven with an air feed system, a combustion chamber and a hot gas extraction system, all of which are installed as permanently sealed relative to flue gas, whereby the air feed system is independent of air in the room and at least the combustion chamber and hot gas extraction system consist of metal, precious metal or alloys thereof. AN Independent claim is also included for the following: (a) a basic oven.

Description

The invention relates to a construction system for a basic furnace with supply air, a combustion chamber and a heating gas flue as well as a basic furnace such a construction system.

In the case of basic stoves, the combustion gases are released via a long heating gas flue led to the chimney, the hot combustion gases coming from one heat the heat-storing material. following the heat absorbed by the material is slowly transferred to the room which the basic furnace stands. In contrast to stoves, whose Heating effect is caused in particular by air circulation (air heating), supplies the basic furnaces with radiant heat. The basic oven is according to the Room situation at its installation site according to the professional rules of the tiled stove Air heating construction trades including the chimney cross section dimensioned. A predetermined amount of wood is stored in batches in the basic furnace burned, a batch of wood sufficient for at least 8 Hours of heat release.

In today's modern, so-called low-energy houses, with very good thermal insulation would be the installation of a conventional stove with one Heating output of 6 to 10 kW, for example, significantly oversized the consequence that the amount of heat generated can not be dissipated and thus leads to excessive room temperature. Basic ovens that the Can give off heat continuously over a longer period of time on the other hand, with a correspondingly small overall dimension, a pleasant one Create indoor climate. Problematic with today's modern low energy houses with ventilation systems, preferably with room air heat recovery, is that in the living quarters a little atmospheric negative pressure is created by the ventilation system. This allows operation of open fireplaces with a deduction from the Combustion gases cannot be guaranteed through a chimney. Accordingly, the fireplaces must be operated independently of the ambient air become. The DIN 18897-1 designed for this gives the necessary Test criteria.

For this reason, a supply air duct that is independent of the room air has been included for stoves smoke-gas-tight combustion chamber proposed. The supply air becomes independent of the room air over a dense pipeline under normal atmospheric Pressure supplied to the outside air. The combustion chamber is smoke-tight and the combustion gases also become smoke-tight in the chimney from which it is led outside by the train generated in the chimney reach.

Previously known basic stoves made of firebrick and / or soapstone are bricked, but can have the required tightness due to the Operation occurring temperature fluctuations and related Do not ensure expansion. By settlement or Expansion cracks can cause combustion gases due to the minor Vacuum in the living room escape into the living room.

Such basic ovens are also known in modular design, such as known from DE 83 00 138.8 U1 or DE 84 06 321 U1. This Basic stoves consist of ceramic and / or chamotte molded parts. however there is also the problem with these basic furnaces that due to the Operation occurring temperature fluctuations and related Expansions and cracks occur in the basic furnaces in the Supported flue gas channels combustion gases, for example due to a slight negative pressure in the living space through a ventilation system can escape into the living space. DE 84 06 321 U1 also a conventional post-heating box made of sheet steel at the smoke outlet of the basic furnace can be connected. However, this post-heating box is a convective heating element that allows a flow of warm air to heat others Spaces is created.

It is an object of the invention to provide a construction system for basic furnaces, in which room air-independent, permanently smoke-tight operation is possible is.

This problem is solved with a construction system according to claim 1.

If the supply air duct, combustion chamber and heating gas flue are smoke-tight are, the supply air is independent of the room air and at least the Combustion chamber and the heating gas flue from a heat-resistant and heat-conducting Material is an operation independent of the ambient air Guaranteed fireplace. At least the combustion chamber and the heating gas flue consists of gas-tight elements made of metal, precious metal or alloys thereof, in particular in the form of steel sheets or Stainless steel sheets. The construction system forms the inner one that is independent of the ambient air Air supply system, fuel combustion and Removal of the heating gases. Made from sheet metal Components can also with large temperature fluctuations, as in Furnaces occur, are permanently made smoke-tight, since the metallic materials in contrast to ceramic and / or chamotte molded parts respond with sufficient elasticity to thermal loads. In contrast, the outside of the construction system with firebricks and / or soapstone. The are preferred Firebricks, ceramic elements and / or soapstones only loose around the construction system joined together. The heat emission thus corresponds conventional basic ovens to the outside, whereas the construction system forms a permanent smoke-tight additional inner shell.

Furthermore, one can on the firebrick and / or soapstone casing Outer shell with stove tiles or soapstone slabs or equivalent Chamotte panels that can be plastered are built up. This The outer shell is covered with an air gap of at least 1 cm Basic furnace construction usual double-shell construction created to an expansion buffer for the superstructure system with fireclay / soapstones on guarantee. The outer shell is in the usual tiled stove construction created by setting or walls with a special mortar. The heat generated in particular by the combustion gases in the heating gas flue is by heat conduction to the firebricks and / or soapstones emitted and emitted by these over longer periods of time as radiant heat given the room.

In order to be able to adapt the basic furnace as flexibly as possible to allow for the spatial conditions, it is advantageous if that Construction system is modular. Depending on the required performance of the Basic furnace and local conditions can different, if necessary standardized modules can be combined with each other, which means Adapted, individual basic furnace can be created. The standardized modules can be inexpensive in larger quantities are manufactured industrially.

The fact that a supply air module for the supply air duct, a combustion chamber module for the combustion chamber and at least one train module for the heating gas train are a logical separation of the various functions of the basic furnace considered in the body system. The supply air module receives a tight one Connection to an air supply pipe that expels air at atmospheric pressure outside of the building. The combustion chamber module receives a connection to the supply air module and contains one Firebox flap for feeding the fuel, especially wood. The Train module, which can also be formed in several parts, is to the Firing chamber module attached and directs the combustion gases to Chimney that also flowed smoke-tight to the last one Train module is connected.

If the modules have transitions to supply air or heating gas, which can be connected to one another in a smoke-tight manner, the entire air or Heating gas routing should be tight. Are preferred at the transitions Flanges with sealing surfaces, preferably additionally with or sealing tapes to be glued on, intended for smoke-tight screwing. The transition flanges are preferred over the module dimensions tapered, but the transitions are adequate Have a cross section for the flue gas duct. By the tapered Design of the flange, the sealing surface dimension is reduced so far that manufacturing tolerances and uneven stresses are no problem be taken up by the flanges.

In particular, by providing flange connections when Assembling the modules at the installation site the required tightness be guaranteed at the transitions without complex connections, have to be produced by welding on site. It is also possible to use a basic furnace after removing the firebricks or to remove soapstones, to change their heating capacity or to waiting.

To feed the fuel, especially wood, points into the basic furnace the combustion chamber module is a combustion chamber door with a smoke-tight closing device on. The locking device ensures that the firebox door automatically, for example acted upon by spring force, closes, ie one open combustion chamber door is avoided, as with the combustion chamber door open due to the low negative pressure in the living room, smoke gases in the living room can pull. The firebox door closing device is preferred equipped with an automatic lock according to DE 101 01 246 C1, with which a permanently smoke-tight fire door even with larger ones Differential pressure between living space and combustion chamber is guaranteed.

If the train module has a gas duct due to its large longitudinal extension of the module and / or angled arrangement in the train module a long Heating gas path is the most effective use of the in the Combustion gases used thermal energy for heating purposes. The train modules are adapted to the required heating output Mass of refractory bricks and / or soapstones.

Because there are also soot particles in the area of the heating gas path in the train modules a smoke-proof inspection opening is provided on the train module. The inspection opening can preferably have a circular shape and have a screw cap, the opening width for one manual intervention and to insert a vacuum cleaner should suffice.

The supply air module is preferably below and a first train module above the Combustion chamber module arranged. This is usually from below by an im Outside air supplied to the screed pipeline with a sealing connection directed into the supply air module and from there to the combustion chamber in the combustion chamber module fed. The combustion gases rising upwards in the combustion chamber are necessarily in the first train module above directed. Partitions for angled guidance are preferred in the train module of the heating gas arranged.

Additional train modules can be arranged above the first train module be their heating gases at defined transfer points Deliver smoke-tight to the train module above. That in the direction of flue gas flow last train module then contains a transition piece for smoke-gas-tight transfer of the heating gases into the chimney.

Alternatively, there is a second one laterally on the first pull module Train module provided that extends over the entire height of the basic furnace extends. This allows a more structured and thus aesthetic, outer shape can be achieved with very long heating gas paths.

Three exemplary embodiments of the invention are described below with reference to FIG accompanying drawings described in detail.

Fig. 1

in räumlicher Ansicht ein zusammengefügtes Aufbausystem in einer ersten Ausführungsform.

Fig. 2

das in Fig. 1 dargestellte Aufbausystem als Drahtmodell,

Fig. 3

das in Fig. 2 gezeigte Aufbausystem als Explosionsdarstellung,

Fig. 4

eine Flanschverbindung zwischen den Modulen im Detail,

Fig. 5

eine Anordnung von Zugmodulen in einer zweiten Ausführungsform in räumlicher Ansicht,

Fig. 6

ein Drahtmodell in Explosionsdarstellung der Zugmodulanordnung gemäß Fig. 5,

Fig. 7

eine Ansicht eines Aufbausystems in einer dritten Ausführungsform und

Fig. 8

die in Fig. 7 dargestellte Ausführungsform des Aufbausystems in Seitenansicht, teils geschnitten.

It shows:

Fig. 1

a three-dimensional view of an assembled construction system in a first embodiment.

Fig. 2

1 as a wire model,

Fig. 3

the assembly system shown in Fig. 2 as an exploded view,

Fig. 4

a flange connection between the modules in detail,

Fig. 5

an arrangement of train modules in a second embodiment in a spatial view,

Fig. 6

5 shows a wire model in an exploded view of the train module arrangement according to FIG. 5,

Fig. 7

a view of a construction system in a third embodiment and

Fig. 8

the embodiment of the construction system shown in Fig. 7 in side view, partly in section.

Fig. 1 shows a three-dimensional view of a system for a basic furnace in a first embodiment. The construction system consists of four Steel sheet manufactured modules, namely a supply air module 1, a Combustion chamber module 2 and two train modules 31 and 32.

The supply air module 1 is in the exemplary embodiment shown, in particular 3 shows the exploded view, trough-shaped. The The underside forms a rectangular base plate 11, on the four plates (back and side surfaces) 12, 13 are welded vertically and the cuboid Form the tub. Preferably in the rear 13 of the supply air module 1 a supply air opening 14 is arranged with an attachment piece 15. On the upper edge of the spanned by the side surfaces 12 and 13 back A connecting flange 16 is provided in the form of a trough.

The combustion chamber module 2 has a connection flange on its underside 16 of the supply air module 1 matching connecting flange 26. Overall the combustion chamber module 2 is designed as a cuboid shape open at the top, wherein the underside of the combustion chamber module 2 forms a combustion chamber floor 21 which openings for supply suitable for optimal combustion of fresh air from the supply air module 1. On the firebox floor 21 are two closed side walls 22, one closed Rear wall 23 and a front plate 24 constructed. In the front panel 24 is an opening 25 with a mounting flange for attaching a combustion chamber door spared. 1 to 3, the combustion chamber door is not shown. At the Opening 25 with a mounting flange can be, for example, a rotating fire door with automatically locking door locking device according to DE 101 01 246 C1 can be attached.

The upper edge of the combustion chamber module 2 in turn has a connecting flange 27 on which a cuboid first train module 31 can be placed is. Correspondingly, the first pull module 31 has one for the connecting flange 27 of the combustion chamber module 2 matching connecting flange 317.

The cuboid first train module 31 is essentially closed educated. A base plate 311 is located on its underside an opening 312 for introducing the combustion gases from below arranged combustion chamber module 2. On the base plate 311 are a closed front and rear walls 313, 313, a left side wall 314 and a right side wall 316 arranged. In the left side wall 314 is a circular inspection opening 315 with a screw cap. The right side wall 316 has an opening 319 with a Connection flange 318 for forwarding the heating gases. Within the cuboidal train module 31, a baffle 310 is used to a to get angled and therefore longer heating gas path.

The second train module 32 is essentially L-shaped, with the long one Leg two heating gas channels 321, 322 separated by a partition 320 and another in the short leg to the second heating gas channel 322 subsequent third heating gas channel 323 are arranged. To the connecting flange 318 of the first pull module 31 is in the area of the inner bend of the L-shaped one second tension module 32 a matching connecting flange 328 arranged. In the train module wall there is one in the first heating gas duct 321 leading opening 324 arranged. On the opposite, lower end of the heating gas channel 321 is in the partition 320 Opening 325 provided that the heating gases from the first heating gas channel 321 in conduct the second heating gas channel 322. The second hot gas channel 322 goes directly into the third heating gas channel 323. At the end of the third Hot gas channel 323 is a rearward opening 326 with a Stub 327 arranged. At the lower end of the L-shaped second train module 32 is an inspection opening 329 also with a smoke-tight Screw lid provided.

4 shows a detailed spatial view of a flange connection. The detailed view shown in FIG. 4 shows the flange connection between combustion chamber module 2 and first train module 31, as in FIG. 1 with IV characterized. The flange connections of the other module transitions are designed accordingly.

In Fig. 4, the upper part of the combustion chamber module 2 is cut out below shown. A lower section of the first train module 31 is above it Cutout shown. The combustion chamber module 2 has on its upper edge a connecting flange 27, the upper edge of which is a horizontal sealing surface 271 forms. There is a self-adhesive sealing tape on this sealing surface 272 closed all round. Furthermore, are in the connecting flange 27 a plurality of bores 273 for screw connection with the corresponding connection flange 317 of the first train module 31 is provided. When screwing the connecting flanges 27 and 318 that is Sealing tape squeezed on the sealing surfaces 271 and a smoke-tight Connection created at the module transition.

The assembly system shown in Fig. 1 in the assembled state is thus after a tight connection of the fresh air supply independent of room air on Supply air module 1 at the nozzle 15 there and smoke-tight connection of the Stutzen 327 on the chimney completely from the living room atmosphere decoupled. The combustion in the combustion chamber module 2 thus takes place completely direct vent. Even if there is one in the living room low negative pressure compared to the pressure conditions in the body system no flue gases can get into the living space.

To clarify the heating gas path in the body system according to the first The exemplary embodiment is in Fig. 2 in a wireframe representation of the heating gas path X shown in dashed line with flow direction (arrow). By burning fresh air from the supply air module 1 in the combustion chamber module 2 Wood forms combustion or heating gases from the combustion chamber module via the opening 312 in the module transition with the flange connection 27, 317 into the first train module 31 and there around the guide plate 310 Flow left around to the opening 319 on the connecting flange 318, where the Heating gases into the second train module 32 through the opening 324 in the first Enter heating gas duct 321, there up to opening 325 in partition 320 flow down and in the second heating gas channel 322 and subsequent third Flow the heating gas channel 323 up to the opening 326 in order to flow in via the connection 327 to get the chimney, not shown.

5 is a spatial view of a train module 3 in another Embodiment shown. To describe the first embodiment functionally identical components have the same reference numerals designated.

The train module 3 consists of three, essentially arranged one above the other equally trained modules. The three combined in train module 3 The heating gases flow through the modules from bottom to top. The The two train modules through which flow first are identical and are described below Pass-through module 33 called. That in the direction of flow Combustion gases last flow train module is called the final train module 34 designated.

The cuboidal train modules 33, 34 have a base plate 311 with two openings 312 arranged on a long side near the two corners. On this base plate 311 there are four in the through train modules 33 closed walls 313 welded on. The top 311 'corresponds to the through train modules 33 of the base plate 311, of which Openings 312 'mirror the openings 312 of the base plate 311 are arranged, as can be seen from Fig. 6. To the way of the smoke gases between the openings 312, 312 'to extend, are baffles 310 intended. When the through train modules 33 are placed one on top of the other the next following module is rotated by 180 ° around its vertical axis placed. The respective openings 312, 312 'thus correspond. to each other to ensure proper flue gas discharge.

The final train module 34 differs in that the top of the Module is designed as a completely closed cover plate 311 '. At the The rear wall 313 'of the final train module 34, however, is an opening 326 arranged with a connector 327 for connection to the chimney. The Opening 326 is opposite openings 312 in base plate 311 oriented. Baffles 310 are also provided in the final train module 34 Extension of the heating gas path provided.

7 and 8, a third embodiment of the invention is shown. Components of the same type are provided with the same reference symbols. in the Contrary to the two aforementioned exemplary embodiments, here are the Flange transitions from module to module tapered, i.e. smaller than the corresponding one Module dimension trained.

In Fig. 7 is designed as a combined supply air and combustion chamber module 4 Module shown. The supply air and combustion chamber module 4 has a Stub 15 formed supply air opening 14 for connecting the room air independent Supply air routing. The upper part of the supply air and combustion chamber module 4 includes the combustion chamber 41, which closes automatically trained firebox door 42 with automatic firebox door lock Is provided. The firebox door 42 is in the locked closed position smoke-tight design.

A first train module 31 is located above the supply air and combustion chamber module 4 via a connecting flange that is very tapered in cross-section compared to the module 27 or 317 with one inserted between the sealing surfaces Seal shown. The first train module 31 has an inspection opening 319, as also shown in FIG. 8 in a side view.

The first train module 31 is connected downstream of the flue gas duct a second train module 32 via a flange connection 318, 328. The The second train module 32 essentially has the view according to FIG. 7 vertically extending, inverted L-shape. It is equipped similarly as the second train module 32 according to the first embodiment, see in particular Fig. 2 and associated description.

The following is the construction of a basic furnace with a construction system described.

For the local conditions at the installation site of the basic furnace first selected the required modules. In particular, the heating gas path formed by the train modules to the desired heating behavior of the basic furnace. The required modules will then be delivered individually and assembled on site starting with the supply air module 1. It is on a gas-tight connection of the supply air nozzle 1 5 in Building provided air supply pipe respected. On the connecting flange 16 a sealing tape is placed and the combustion chamber module 2 with its Connection flange 26 attached and screwed gas-tight. following the required train modules 3 are also inserted by Sealing tapes mounted on their flange connections and from the last one Train module a smoke-tight connection by means of connector 327 to the Chimney created.

Then prefabricated chamotte or soapstones are loosely in the Area of the combustion chamber module 2 and the train modules 3 on its sheet steel surface created. Through choice of material and material thickness it will Heat storage behavior influenced and tailored to the specifications.

Then an outer shell made of stove tiles, Soapstone or chamotte plates set. The blocks are included well-known special mortar built into a stable outer shell. Between the building system covered with firebrick or soapstone and the outer shell is left an air gap, the only serves as an expansion buffer and not for air circulation.

This double-shell construction also ensures that the Front plate 24 of the combustion chamber module 2 arranged through the combustion chamber door Extends through the outer shell and is bordered there. The inspection openings are also 325, 329 designed so that external access is possible.

LIST OF REFERENCE NUMBERS

1

supply air module

11

baseplate

12

side surface

13

back

14

air intake opening

15

Support

16

connecting flange

2

Combustion chamber module

21

Firebox floor

22

Side wall

23

rear wall

24

front panel

25

opening

26

Verbindungsfiansch

27

connecting flange

271

sealing surface

272

sealing tape

273

drilling

3

tensile modulus

31

first train module

310

baffle

311

baseplate

311 '

top

311 '

cover plate

312

opening

312 '

opening

313

Front / rear wall

313 '

rear wall

314

Left side wall

315

inspection opening

316

Right side wall

317

connecting flange

318

connecting flange

319

opening

32

second train module

320

partition wall

321

gas duct

322

gas duct

323

gas duct

324

opening

325

opening

326

opening

327

Support

328

connecting flange

329

inspection opening

33

Durchgangszugmodul

34

Abschlußzugmodul

4

Supply air and combustion chamber module

41

combustion chamber

42

Fire door

X

heating-gas

Claims (10)

Construction system for a basic furnace with supply air duct, a combustion chamber and a heating gas flue, characterized in that the supply air duct, combustion chamber and heating gas duct are permanently smoke-tight, the supply air duct being independent of the ambient air and at least the combustion chamber and the heating gas duct made of metal, precious metal or alloys. Construction system according to claim 1, characterized in that it is constructed in a modular manner. Assembly system according to claim 2, characterized in that an air supply module (1) for the supply air duct, a combustion chamber module (2) for the combustion chamber and at least one train module (3) for the heating gas flue are provided. Construction system according to claim 2 or 3, characterized in that the modules (1, 2, 3) have transitions to the supply air supply or heating gas supply which can be connected to one another in a smoke-tight manner. Construction system according to claim 4, characterized in that flanges (16, 26, 27, 317, 318, 328) with sealing surfaces (271), preferably additionally with sealing tapes (272) to be applied or stuck on, are provided for the smoke-gas-tight screwing at the transitions. Assembly system according to one of claims 3 to 5, characterized in that the combustion chamber module (2) has a combustion chamber door (42) with a smoke-gas-tight closing device. Assembly system according to claim 6, characterized in that the firebox door (42) is designed to close automatically and has an automatic firebox door lock. Construction system according to one of claims 3 to 7, characterized in that the train module (3) has a gas channel (321, 322, 323) which forms a long heating gas path due to the large longitudinal extension of the module and / or angled arrangement in the train module (3). Basic furnace with a construction system according to one of the preceding Claims, wherein the construction system with a heat storage layer, preferably made of firebricks and / or soapstones, is dressed. Basic furnace according to claim 9, characterized in that the heat storage layer is covered with a preferably brick, outer shell made of stove tiles, soapstone and / or fireclay slabs.

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