DE8015700U1 - FIREPLACE INSERT WITH A FRONT WATER-FLOWED DOUBLE SHEATH - Google Patents

Description

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The innovation concerns a fireplace insert with a double jacket open at the front, through which water flows, with a!

Opening in the top wall and a flue pipe attached to it for the flue gas outlet as well as a flow and return pipe for the heating water with the prescribed safety equipment.

Fireplace inserts of the type mentioned are already widespread and have proven themselves well, as they are on purer Wood-burning bases can not only heat the room in which they are located, but also because they are one Can supply a heating system or a system for generating hot service water. Disadvantageous with these known fireplace inserts is their insufficient efficiency, so that a large proportion of the heat energy generated remains unused, so the wood consumption and the amount of ash are unnecessarily high. Disadvantageous with these Fireplace inserts is still that the room in which they are located is sometimes only sufficient or uneven can be heated.

There are also fireplace inserts known in which fresh air is supplied from the outside, which is on the walls of the Fireplace insert is heated and then directed into the room to be heated. These add to the room

led air then serves as combustion air for the open one Hearth fire, with the air entering the furnace from the front, preventing smoke from escaping. Disadvantageous However, with these fireplace inserts, their efficiency is also not optimal and that hot water continues to be produced not happened.

It is now the object of the invention to create a fireplace insert in which the efficiency compared to the known systems is considerably higher, which allows not only warm air heating of the room, in which the fireplace insert or the hearth fire

is present, but also in which hot water for a heating

system as well as heated service water can be generated can.

The fireplace insert according to the invention should also It should be easy to set up and easy to use

μ an optimal distribution of the generated energy for the

Allow generated warm air or the generated hot water and in a further embodiment the possibility offer to use peat, briquettes or coal as fuel.

According to the invention, this object is achieved at the outset

named fireplace insert solved by the fact that the fireplace

& insert outside at a distance from the side walls and / or

'': the rear wall of the double jacket one in the gap

the double jacket has an air stream leading further jacket, the upper edge of which over the upper edge of the Double jacket is pulled up, a top wall and one or more exits with control flaps for the exiting warm air and an inlet for the air flowing through the gap.

'To facilitate installation, the named further

Coat and its top wall to be firmly connected to the double jacket and to heat the masonry To avoid the hearth fire, the further jacket and / or its top wall can form an insulation layer or have.

In particular, in order to be able to use other fuel than wood, the double jacket can have a grate floor and have a supply line for fresh air to this, from the air inlet for the air flowing through the gap Air branches off and a two-way adjustment flap for adjusting the flows for the branch in the branch Supply line and the gap space is available.

To generate process water, it is also advantageous to use the top inside the double jacket next to the pipe coil the safety cooling a pipe coil for domestic water production can be arranged and a premature To prevent corrosion of the inclined cross pipes arranged in the upper part of the furnace, can have this box shape with an inclined top wall, as this top wall needs to be cleaned then it is more easily possible or acidic condensates can drain off by themselves.

Given that the fireplace insert according to the invention not only enables the generation of warm air, but also of hot water and, moreover, a A significant improvement in efficiency can result from an ideal solution to the problems at hand to be spoken.

The following is an embodiment of the invention described in more detail with reference to drawings. Show it:

Figure 1 is a partially sectioned front view of a fireplace insert and

FIG. 2 shows a cross section through the insert according to FIG. 1.

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According to the figures, the fireplace insert consists of a double jacket 1, the two opposite side walls 2, a rear wall 3 and a top wall 11 and has a grate base 12. The grate floor 12 has water flowing through it, with Perforations and openings as ash and air passages are available.

Ir. The combustion chamber or the upper part of the combustion chamber are arranged cross tubes 17, the top wall 18 of which is attached at an angle is. This design achieves the advantages mentioned above. In the upper area of the double jacket 1 are still both a pipe coil 15 for the production of hot water and the prescribed one Coiled pipe 16 for safety cooling. A probe 16 ' serves to trigger the cold water flow for the safety cooling. The interior of the double jacket 1 is further through a flow pipe 19 and a return pipe 19 'with a known heating system connected »The nozzle serves as a ventilation pipe.

The chimney insert according to the innovation also has a safety valve 22 and other, per se known safety and control parts and devices. These are either required by law or can be found in the At the discretion of the person skilled in the art, so that they do not need to be described in more detail. Another temperature sensor records the temperature of the water in the fireplace insert.

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When a target temperature is reached, the water pump is operated , which feeds the system water from the fireplace insert into the heating system. An opening is cut out in the top wall 11, to which a flue gas outlet pipe 21 attaches, which is connected to a chimney in a known manner. The chimney insert is surrounded by a further jacket 5 on the side walls and optionally also on the rear wall, this further jacket 5 being made from sheet metal and being firmly connected to the double jacket 1. In a further embodiment of the invention, this further jacket can also be created on site and consist of non-metallic material.

The further jacket 5 extends upward beyond the double jacket 1 and is supported by the above-mentioned cover wall 6 completed, the flue gas exhaust pipe 21 a considerable distance within the thereby formed air space 1o runs around the flue gas exhaust pipe 21. This ensures that the warm air already heated in the gap 4 by the exterior of the double jacket 1 through again the flue gas exhaust pipe, which has a considerable temperature 21 is heated. This results in a reduction in the flue gas temperature and a decrease at the same time the chimney losses reached; the efficiency is correspondingly greater.

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In the jacket 5 there are one or more outlet pipes 8 for the heated air on the upper edge. Fresh air enters through the supply air inlet 9, which through the movable adjustment flap 14 occurs optionally the supply air duct 4 or the air opening 13 can be divided. From the latter it occurs through the Grate 12 into the combustion chamber 3o.

This fresh air supply line 13 to the combustion chamber is particularly necessary when for heating solid fuels, the combustion chamber is closed off in the living room by a fire-proof glass plate as a door will. It is essential that only part of the fresh air drawn in is passed to the combustion chamber is and another part (adjustable due to the adjustment flap 14) is used as heating air circulation can be. The supply of fresh air is not necessary, especially when wood with a large flame is burned and the air inlet from the front into the furnace prevents smoke from entering exits the living space.

After the air has passed through the double jacket 4 (heating channel), it enters the upper hot zone a. Zone 31 is the contact area to the flue gas pipe. The air located there heats up to a Temperature over 100 ° Celsius. Therefore this hot air is allowed

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not directly via one of the exits 8 into the living room
be initiated. In order to be able to mix the hot air in a metered manner with the air flowing upwards in channel 4, a metering flap 7 is provided which delimits a slot. Due to the flow ejector effect, air from the heating area 31 is mixed with the air from the duct 4 in a metered manner. This allows the outlet temperature in channel 8 to be set precisely.

In a further embodiment of the invention, all flaps, valves, safety devices, pipe sockets and the like are preferably arranged on a side wall of the double jacket 1. Advantageously, the further jacket 5 in this area can also be designed as a door, so that in the event of a defect a repair is possible without destroying the further jacket 5 - even if this is made on-site. The "door" exists in the event
Made of light masonry or plaster of paris, which can be easily removed. After removing, the fireplace insert can be pulled out. The upper part of the chimney should be removable so that this part, which is less susceptible to corrosion, can remain in the area of the chimney masonry

Claims (8)

• · · · ■■ I Il Ι · • · I · ItII ■ l> · ItII> 11 · <• »111 I I I I • · · ι ι tii t ■ ·« ti it Il Protection claims: 1. Chimney insert with an open front, water-permeable flocked double jacket, with an opening in the Top wall and a flue pipe attached to it for the flue gas outlet as well as with a flow and return pipe for the heating water with the prescribed Security equipment, characterized in that the fireplace insert is at a distance from the outside from the side walls (2) and / or the rear wall (3) of the double jacket (1) one in the gap (4) has an air stream leading to the double jacket (1) further jacket (5), the upper edge of which is pulled up over the upper edge of the double jacket (1), a top wall (6) and one or several outlets (8) with control flaps (7) for the exiting hot air and an inlet (9) for which has air flowing through the gap (4). 2. Chimney insert according to claim 1, characterized in that the further jacket (5) and its top wall (6) is firmly connected to the double jacket (1). I 1 '1 I. 3. Fireplace set according to claim 1 or 2, characterized in that that the further jacket (5) and / or its top wall (6) form an insulating layer or exhibit. 4. Fireplace insert according to claim 1 to 3, characterized in that the double jacket (1) has a grate bottom (12) and one of the air inlet (9) for the gap (4) has branching supply line (13) for fresh air, wherein in the There is a two-way adjustment flap (14) on the branch. 5. Fireplace insert according to claim 1 to 4, characterized in that the top within the double jacket (1) In addition to the pipe coil (16) for the safety cooling, a pipe coil used to generate hot water (15) is arranged. 6. Fireplace insert according to one of the preceding claims, with arranged in the upper part of the firebox, inclined cross tubes, characterized in that this box shape with an inclined top wall (18) have. ft It I t ■ ItI I I I tilt t Il I Il t I * * ■ II t I * * -3a- 7. Fireplace insert according to claim 1 to 6, characterized in that a side wall of the further jacket has a door insert and the pipe socket, valves, flaps and the like behind this Use are arranged. 8. Fireplace insert according to claim 1, characterized in that that in the area of the flue gas pipe (21) above the gap (4) a flap (7) closable hot gas space (zone 31) is arranged.