EP1015820B1 - Device for closing a furnace - Google Patents

Abstract

The invention relates to a device for closing a furnace (1) in a heating installation (2), especially for a charging door (3) pertaining to a heating fireplace (4) or any type of oven, comprising an anchoring frame (5), a door (7) which can pivot by means of a pivoting device, and a locking device. A regulating device (20) enabling relative movement between the doors (7) and the anchoring frame (5) is arranged between the door (7) and the anchoring frame (5), especially between the pivoting device (20) and the anchoring frame (5).

Description

The invention relates to a furnace closure device for a heating system, in particular for a loading opening from a fireplace or any kind of Oven as described in the preamble of claim 1.

There are already an abundance of firebox closing devices or fireplace doors known from various publications. This firebox closure devices are also formed by a frame and a door pivotally inserted therein. In order to ensure a supply of combustion air for these versions, are mostly secondary air control devices in the basic structure of the door or in the wider one Structure of the fireplace or stove integrated. In connection with the feed Secondary air is also often tried, the problem of contamination of the inside the door due to combustion residues, particularly disadvantageous for doors that have a lens made of high-temperature resistant glass, etc. to solve. Disadvantageous here is that such air ducts for deriving an air flow from the Secondary air for the formation of an air curtain require complex installations and contaminated by the residues caused by the combustion and thereby impaired in their function, making a tough, difficult to remove There is a coating on the inside of the door and thus in addition to the visual impairment the maintenance effort also increases. Furthermore, it can be relative due to space constraints small dimensions of such secondary air devices with larger heating capacities to an undersupply with the necessary for an optimal combustion process Secondary air come, which results in incomplete combustion leads to high pollutant emissions that pollute the environment.

In DE 86 02 630 U1 there is a closure flap for one above the combustion chamber of a furnace, in particular a fireplace, provided baking compartment, which is pivotally mounted below on a horizontal shaft, and in the closed position can be locked. At least one carrier for the flap can be detached via one Rail of the oven can be hung and has a stop for supporting the open Open up. The disadvantage of this design is that only an angular adjustability the flap is given in relation to the baking chamber opening, so that one uniform air circulation on the inside of the flap facing the baking chamber, especially in the vertical direction.

The invention is based on the object of a combustion chamber closing device to create for a heating system, in which on the one hand a tight sealing of the Combustion chamber and on the other hand a position of the combustion chamber closing device for an adequate supply of combustion air to the door area and combustion chamber is achieved.

This object of the invention is represented by the characterizing part of claim 1 Features resolved. The surprising advantage of this is that the supply of the combustion chamber with combustion air through a simple, straight-line movement the firebox closing device or the door is made possible and that the Closed position of the door or an air gap between the anchoring frame and the door-forming position is fixed via at least one locking device can be held. This displacement of the door is caused by guideways, which are arranged on the anchoring frame or integrated into it, in the Way allows a relative movement of the door parallel to the plane of the anchor frame is achieved. Another advantage arises from the fact that the door in both Positions in relation to the anchoring frame, which is in an opening of a Heizkamines is arranged, arranged pivotably via a pivoting arrangement is to enable the door to be opened at any time and thus access through the loading opening to ensure the combustion chamber. Furthermore, such Firebox closing device allow the air gap between the Door or the sealing element and the anchoring frame all around different can be large. Due to the possible change in the position of the door in vertical Level, it is also possible to change the supply of combustion air at any time. Accordingly, a change in the air gap in the upper or lower area optimal combustion can be achieved at every stage of the fire.

Further advantageous developments are described in claims 2 to 28 and can be found in the detailed description of the figures.

The invention is described below with reference to that shown in the drawings Exemplary embodiments explained in more detail.

Fig. 1

eine erfindungsgemäße Feuerraumverschließvorrichtung für eine Heizanlage mit einem Verankerungsrahmen und einer Tür und dazwischen angeordneter Verriegelungsvorrichtung bzw. Schwenkanordnung, in Draufsicht, geschnitten und schematisch vereinfachter Darstellung;

Fig. 2

eine Darstellung nach Fig. 1 mit einer sich in einer anderen Position befindlichen Tür, in Draufsicht, geschnitten und schematisch vereinfachter Darstellung;

Fig. 3

die erfindungsgemäße Feuerraumverschließvorrichtung, in Stirnansicht, geschnitten, gemäß den Linien III - III in Fig. 2 in schematisch vereinfachter Darstellung.

Show it:

Fig. 1

a fire chamber closure device according to the invention for a heating system with an anchoring frame and a door and interposed locking device or pivoting arrangement, in plan view, sectioned and schematically simplified representation;

Fig. 2

a representation of Figure 1 with a door located in a different position, in plan view, sectioned and schematically simplified representation.

Fig. 3

the firebox closing device according to the invention, in front view, sectioned, according to lines III - III in Fig. 2 in a schematically simplified representation.

As an introduction, it should be noted that in the differently described embodiments same parts with the same reference numerals or same component names provided with the disclosures contained throughout the description analogously to the same parts with the same reference numerals or the same component names can be transferred. Furthermore, individual features can also be made the shown different exemplary embodiments for themselves, represent solutions according to the invention.

1 to 3 is a furnace closing device 1 for a heating system 2, shown in particular for a loading opening 3 of a heating fireplace 4, wherein this firebox closing device 1 for all other heating systems 2, e.g. any type of oven can be used. The firebox closing device 1 exists now in turn from a frame or portal-like anchoring frame 5, which is inserted in an opening 6 of the heating fireplace 4 in a fixed manner. The loading opening 3 of the anchoring frame 5 is now through a door 7, which in this example consists of an outer frame 8 and an inner frame 9 is. It is now possible to open between the outer frame 8 and the inner frame 9 the side of the door facing away from the anchoring frame 5 has a filling 10 in the form to arrange a viewing window 11, which provides an insight into a combustion chamber 12 of the Heating fireplace 4 allows. Of course, the door 7 can also be a single Cast part to be formed, with various insert or attachment parts instead of the viewing window 11 can be arranged from metal or ceramic.

The anchoring frame 5 now consists of three, preferably at right angles to each other extending leg, these as outer leg 13, inner leg 14 and a connecting leg 15 connecting these are designated, the circumferential Inner leg 14 delimit the extent of the loading opening 3. In the end regions 16 of the door 7 facing the inner leg 14 is for air or Smoke-tight closing of the loading opening 3 a sealing arrangement 17 in Form of a sealing element 18 is arranged. Of course it is also possible that Sealing arrangement 17 or the sealing element 18, as in FIG. 2 in dashed lines shown to attach to the inner leg 14 to the same effect for sealing to allow the combustion chamber 12 with respect to the ambient air.

As can now be seen further, there is between the door 7 and the anchoring frame 5 or the connecting leg 15, but in particular between a swivel arrangement 19 and the anchoring frame 5 or the connecting leg 15 a Adjustment arrangement 20 for carrying out a relative movement between the door 7 and the anchoring frame 5. The pivot arrangement 19 is thereby formed over a height 21 of the firebox closing device 1 with two hinges 22, to enable pivoting of the door 7. These hinges 22 have now two legs 23, 24, the leg 23 on the outer frame 8 of the door 7 and the leg 24 is displaceably mounted or held in the adjustment arrangement 20 is.

The adjustment arrangement 20 is in turn formed from two guideways 25, which run in a plane perpendicular to a plane formed by the loading opening 3, these two guideways 25 encompass the leg 24 such that a displacement of the leg 24 in the longitudinal direction of the guideways 25 enables a movement in another direction is avoided. The adjustment arrangement 20 can be formed by a sliding bearing, the Leg 24 can be moved linearly in the guideways 25. It can however, due to the dead weight of the door 7, the leg 24 is tilted the guideways 25 come. For this reason, the adjustment arrangement is advantageous 20 to realize by a roller bearing, which ensures trouble-free Displacement of the door 7 relative to the anchoring frame 5 over a long period of time is guaranteed.

Through this arrangement of the adjustment arrangement 20 or the guideways according to the invention 25, from which the adjustment arrangement 20 is formed, it is now possible to the door 7 from a loading opening 3 via the sealing arrangement 17 air and smoke-tight closing first position in an approximately parallel to it and at least in some areas an air gap 26 between the inner leg 14 the anchoring frame 5 and the door 7 releasing second position adjustable is formed, as shown in FIG. 2. Furthermore, by the arrangement the pivot assembly 19, which are formed by the hinges 22, a Swiveling the door on the one hand in the first position and on the other hand in the Air gap 26 forming second position possible.

Of course, it is also possible to have the guideways 25 in the connecting leg 15 of the anchoring frame 5 to be integrated, which leads to its own attachment the guideways 25 on the connecting leg 15 of the anchoring frame 5 can be dispensed with. In this variant, it is possible to To arrange the pivot arrangement 19 or the hinge 22 with its legs 23, 24 in such a way that that the fixed leg 23 is attached to the outer frame 8 or the door 7 and the further leg 24 linearly movable in guideways 25 which in Connecting leg 15 of the anchoring frame 5 are integrated, slidably mounted is.

Furthermore, it is to achieve the relative displacement of the door 7 relative to the Anchoring frame 5 also possible, the guideways 25 for linear movement Storage of the leg 24 of the hinge 22 on the outer frame 8 of the door 7 or to arrange on the door 7 itself. To minimize the cost of materials or it is to avoid complicated fastening of the guideways 25 on the door 7 of course also possible, these guideways 25 for linearly movable recording to integrate the leg 24 in the outer frame 8 of the door 7 or in the door 7. Through such a design of the adjustment arrangement 20 or the swivel arrangement 19 is now the fixed leg 23 of the hinge 22 on the connecting leg 15 arranged fixed in motion and the relative movement is made possible that the door 7 or the outer frame 8 of the door 7 on the other leg 24 of the Hinge 22 can slide over the guideways 25.

Now around door 7 in its first position and in its position opposite the anchoring frame 5 to be able to fix approximately second parallel shifted position 5 locking lever 27 arranged between the door 7 and the anchoring frame. These locking levers 27 are pivotable on the outer frame via pivot bolts 28 8 of the door 7 fastened such that the locking lever 27 parallel to the anchoring frame 5 or to its connecting leg 15. Furthermore are on the inner surface 29 of the connecting leg 15 of the anchoring frame facing the door 5 extending vertically in the direction of the outer frame 8 of the door 7 Positioning pin 30 arranged.

The locking levers 27 now have along their longitudinal extent and between at least the pivot pin 28 and its end regions 31 facing the inner leg 14 two groove-shaped recesses 32, 33, which in the locked position of the door 7 encompass the positioning pins 30 in some areas.

If the door 7 is now to be closed airtight and smoke-tight from the combustion chamber 12 first position in an air gap 26 between the outer and inner frames 8, 9 and the inner leg 14 of the anchoring frame 5 forming the second position have to be moved, end regions 34 of the Locking lever 27 are moved upward, causing the locking lever 27 move out of engagement of the positioning pin 30 and thus a displacement the door 7 perpendicular to a plane formed by the loading opening 3 becomes. After the displacement, the recesses 32 now encompass the Locking lever 27, the positioning pin 30 and are now in an air gap 26th training position fixed. In this position it is now possible for the circulating air gap 26 sufficient combustion air - according to arrows 35 - in can reach the combustion chamber 12.

To in a first the sealing opening 3 of the anchoring frame 5 sealing Position of the door 7 to achieve an optimal seal of the same can do that Sealing element 18 in the inner leg 14 associated with the anchoring frame 5 End regions of the outer frame 8 or inner frame 9 of the door 7 are arranged clamped and can protrude from an end face 36 thereof. Now there is the Door 7 in its first position, the sealing element 18 lies on one of the door 7 facing Inner surface 37 of the inner leg 14 and is locked by a which is made possible by locking lever 27, held in this first position. This fixed mounting results from the encompassing of the recesses 33 the positioning pin 30, this fixation without great effort by a User can be solved again.

It is also possible to have only one recess 33 in each case on the locking lever 27 to be arranged, which for the fixing of the door 7 in a sealing the combustion chamber 2, first position is needed. Now this lock is in the first position the door 7 released, the end portions 34 of the locking lever by a user 27 is moved upwards until the recesses 33 move the positioning pins 30 release.

In this case, however, is on the locking lever facing away from the pivot assembly 19 27 a second recess 32 in the anchoring frame 5 End region 31 of the locking lever 27 is arranged, which the relative movement the door 7 after reaching the second position forming the air gap 26 limited. This advantageous design of the firebox closing device 1 is between the two recesses 32, 33 on the locking lever 27 a stepless adjustment of the door 7 with respect to the loading opening 3 is possible, whereby a variable adjustment of the expansion of the air gap 26 or the supplied Combustion air - according to arrow 35 - is made possible. Too much relative movement the door 7 opposite the anchoring frame 5 can also by a Stop 38, which in a longitudinal extension of the leg 24 groove engages, as this is indicated in Fig. 2 in dashed lines.

Furthermore, it is also possible for the hinges 22 or the legs 23 of the hinges 22 rotatable via a bolt on the door 7 or the outer frame 8 of the door 7 to be arranged in order to position the door 7 in its second position forming the air gap 26 in vertically pivotable. For this it is necessary that either in the lower hinge 22 or in the upper hinge 22 with the leg 23 the door connecting bolt in a vertical direction of the door 7 Slot is guided. As a result, the door 7 can form in the air gap 26 second position with appropriate adjustment in the area of an upper front edge 39 of the sealing arrangement 17 and in the region of a lower end edge 40 of the sealing arrangement 17 form a differently sized air gap 26.

Such an advantageous design of the firebox closing device 1 a division of the combustion air - according to arrow 35 - is made possible, whereby a regulation of the amount of primary air, which is in the area of a lower front edge 40 of the sealing arrangement 17 flows in, and the amount of secondary air which flows in the region of the upper end edge 39 of the sealing arrangement 17, enables becomes. This allows the amount of combustion air or primary and Secondary air - according to arrow 35 - for each stage of combustion in the combustion chamber 12 regulate. The supply of the secondary air in this way also enables through it Along the inside of the viewing window 11 keep combustion residues free the same. Experience has shown that it is necessary in the lower area End edge 40 of the sealing arrangement 17 to form a larger air gap 26, around the flames in combustion chamber 12 with sufficient combustion air - according to arrow 35 - or to supply primary air. In the course of further combustion it may be necessary be to reduce the primary air supply in order to cause the embers to burn up prematurely to prevent this by adjusting the door 7 in its vertical Level is enabled.

Of course, there are other ways to attach door 7 to the anchoring frame 5 possible, whereby the air gap 26 between the anchoring frame 5th and the sealing arrangement 17 arranged all round on the door 7 - as desired - can be of different sizes.

As already briefly mentioned before, the door 7 can be designed as a one-piece cast iron part his. In this case, in the area where it is possible, a lens 11 to arrange, an insert part or an attachment part, which is made of metal, ceramic or a other heat-resistant material can be arranged.

In conclusion, it should be pointed out that in the exemplary embodiments described above individual parts have been disproportionately enlarged for understanding to improve the solution according to the invention. Furthermore, individual can Parts of the combinations of features of the individual exemplary embodiments described above in conjunction with other individual features from other exemplary embodiments form independent, inventive solutions.

Above all, the individual versions shown in FIGS. 1, 2, 3 can be the subject form independent, inventive solutions. The related, Tasks and solutions according to the invention are the detailed descriptions of these figures refer to.

List of reference symbols

1

Firebox closing device

2nd

heating system

3rd

Loading opening

4th

Fireplace

5

Anchoring frame

6

opening

7

door

8th

Outer frame

9

Inner frame

10th

filling

11

Viewing window

12th

Combustion chamber

13

Outer thighs

14

Inner thigh

15

Connecting leg

16

End area

17th

Sealing arrangement

18th

Sealing element

19th

Swivel arrangement

20th

Adjustment arrangement

21

height

22

hinge

23

leg

24th

leg

25th

Guideway

26

Air gap

27

Locking lever

28

Pivot pin

29

Inner surface

30th

Positioning pin

31

End area

32

Recess

33

Recess

34

End area

35

arrow

36

Face

37

Inner surface

38

attack

39

Front edge

40

Front edge

Claims (28)

1. Device for closing a furnace of a heating system, in particular for an access opening of a heating flue or any type of oven, having an anchoring frame and a door pivotable on a pivot mechanism and at least one locking mechanism, characterised in that a displacement system (20) is provided between the pivot mechanism (19), the door (7) and the anchoring frame (5) which is designed to enable a relative displacement of the door (7) parallel with the plane of the anchoring frame (5).
2. Device for closing a furnace as claimed in claim 1, characterised in that the door (7) is designed so as to be displaced from a first position, in which it closes off the access opening (3) in an airtight and smoke-proof closure by means of a seal arrangement (17), into a second position approximately parallel therewith leaving an air gap (26) at least in part regions between the anchoring frame (5) and the door (7).
3. Device for closing a furnace as claimed in claim 1 or 2, characterised in that the door (7) is arranged so that it is displaced continuously into the second position by means of the displacement system (20).
4. Device for closing a furnace as claimed in one of more of the preceding claims, characterised in that the door (7) is mounted so as to pivot on legs (23) of hinges (22) by means of pivots.
5. Device for closing a furnace as claimed in claim 2, characterised in that when the door (7) is in the second position, an air gap (26) formed in the region of a top end edge (39) of the seal arrangement (17) is different in size than in the region of a bottom end edge (40) of the seal arrangement (17).
6. Device for closing a furnace as claimed in claim 2, characterised in that when the door (7) is in the second position, the air gap (26) extending along the peripherally disposed seal arrangement (17) varies in size.
7. Device for closing a furnace as claimed in claim 2, characterised in that the door (7) is arranged so as to pivot into the first position and into the second position by means of the pivot mechanism (19).
8. Device for closing a furnace as claimed in one or more of the preceding claims, characterised in that the pivot mechanism (19) is provided in the form of at least one hinge (22).
9. Device for closing a furnace as claimed in one or more of the preceding claims, characterised in that the pivot mechanism (19) is disposed in the displacement mechanism (20), which is secured to the internal face (29) of the anchoring frame (5) facing the door (7), so as to slide perpendicular to a plane parallel with the access opening (3).
10. Device for closing a furnace as claimed in one or more of the preceding claims, characterised in that the displacement mechanism (20) is provided by means of slide bearing in guide tracks (25).
11. Device for closing a furnace as claimed in claim 10, characterised in that the guide tracks (25) are of a roller bearing design.
12. Device for closing a furnace as claimed in claim 8, characterised in that at least one leg (24) of the hinge (22) is mounted so as to be linearly displaceable in the guide tracks (25).
13. Device for closing a furnace as claimed in claim 10, characterised in that the guide tracks (25) in which the leg (24) of the hinge (22) is linearly displaceable are disposed on the door (7).
14. Device for closing a furnace as claimed in claim 10, characterised in that the guide tracks (25) in which the leg (24) of the hinge (22) is linearly displaceable are integrated in the outer frame (8) or in the door (7).
15. Device for closing a furnace as claimed in claim 10, characterised in that the guide tracks (25) in which the leg (24) of the hinge (22) is linearly displaceable are integrated in a leg of the anchoring frame (5).
16. Device for closing a furnace as claimed in claim 10, characterised in that the guide tracks (25) of the displacement mechanism (20) subtend an approximately T-shaped cross section.
17. Device for closing a furnace as claimed in one or more of the preceding claims, characterised in that at least one locking lever (27) is provided between the door (7) and the anchoring frame (5).
18. Device for closing a furnace as claimed in one or more of the preceding claims,' characterised in that at least one locating pin (30) is provided on the internal face (29) of the anchoring frame (5) facing the door (7).
19. Device for closing a furnace as claimed in claim 17, characterised in that a recess (32) is provided in the locking lever (27) which encloses the locating pin (30) so as to engage it.
20. Device for closing a furnace as claimed in claim 17, characterised in that the locking lever (27) is secured to the door (7) so as to be pivotable by means of a pivot (28) and in that the locking lever (27) extends parallel with the inner face (29) of the anchoring frame (5) facing the door (7).
21. Device for closing a furnace as claimed in one or more of the preceding claims, characterised in that the door (7) comprises an inner frame (9) and an outer frame (8) and a fire-proof insert made from ceramic or metal for example is disposed between the inner frame (9) and the outer frame (8).
22. Device for closing a furnace as claimed in claim 21, characterised in that if the door (7) is made in a single piece, the insert is designed as a fit-on piece.
23. Device for closing a furnace as claimed in one or more of the preceding claims, characterised in that the door (7) or the anchoring frame (5) is a cast iron component.
24. Device for closing a furnace as claimed in one or more of the preceding claims, characterised in that a seal arrangement (17) in the form of a sealing member (18) cooperates with end face regions in a combustion chamber (12) facing the door (7).
25. Device for closing a furnace as claimed in claim 24, characterised in that the sealing member (18) is disposed running around the end face regions of the door (7) facing the combustion chamber (12).
26. Device for closing a furnace as claimed in claim 24, characterised in that the sealing member (18) is arranged on an end face (36) bordering end face regions of the door (7) facing the combustion chamber (12).
27. Device for closing a furnace as claimed in claim 24, characterised in that the sealing member (18) is arranged between the end regions of the outer frame (8) facing the combustion chamber (12) and the inner frame (9) and the end face (36) bordering the latter is disposed in a projecting arrangement.
28. Device for closing a furnace as claimed in claim 24, characterised in that the sealing member (18) is arranged on an inner face (37) of the anchoring frame (5) or the inner leg (14) facing the end regions of the outer frame (8) directed towards the combustion chamber (12).

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