DE2107465A1 - Exhaust gas routing for gas or oil-heated devices - Google Patents

Description

JOH. VAILLANT K.G., RtMSCHEID

Exhaust gas routing for gas or oil-heated devices

The invention relates to an exhaust gas and possibly air duct for gas or oil-heated devices, in which an exhaust gas chimney, to which the devices are connected, is inside a building is arranged vertically and led out with its mouth from the roof of the building.

The combustion air is either sent to the installation room of the Taken from the heater or fed via an air duct connected to the open air to the respective heating device, which is sealed gas-tight from the installation room.

At a distance from the mouth of the exhaust pipe and possibly the air pipe is one that prevents rain and snow from falling Hood or plate attached. Several heaters can be mounted one above the other on an exhaust chimney and on the air supply duct will.

It has been found that wind conditions occasionally occur which prevent the exhaust gas discharge via the exhaust chimney during a considerably impair or prevent a longer period of time. That is because there is a strong wind on a building wall, as a result of which the air flows up the building wall at great speed and the air above the roof carried away. The latter thus flows at a considerable speed across the mouth of the exhaust pipe or the air pipe and obstructs the exhaust gas outlet or the air inlet.

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The invention is based on the object of arranging the mouth of the channels lying above the roof so that the above-described Cross wind remains without harmful influence.

According to the invention, the object is achieved in that the vertical part of the exhaust pipe is at the level of the upper edge the building wall merges into a two-armed horizontal exhaust pipe, the two mouths of which are roughly in the planes of two opposite building walls. The mouths can be formed by vertical exhaust ports, which are protected against rain or snow by hoods or panels.

Another solution is that the mouths are formed by the ends of the horizontal exhaust pipe through Wire baskets are extended, the basket bottom is closed by a plate. The upper sides are expediently the cross-section of the rectangular wire body is shielded from the incidence of snow by a plate.

The invention is illustrated below with reference to a few exemplary embodiments explained with reference to the accompanying schematic drawings.

It shows:

Figure 1 shows the exhaust pipe in a multi-storey building with vertical mouths on the flat roof and gas water heaters that use the Take air from the respective installation room,

Figure la the exhaust pipe with horizontal mouths on flat roofs with open gas flow heaters similar to Figure 1,

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Figure 2 shows the exhaust pipe with vertical mouths at the gable roof and open gas flow heaters as in Figure 1,

Figure 2a the exhaust pipe with horizontal mouths with a gable roof and open gas flow heaters as shown in Figure 2,

Figure 3 shows the vertical section through a multi-storey building Building with an exhaust duct to which the exhaust gases from several heaters arranged one above the other supplied v / ground and at the same time the heater extract the combustion air that is supplied via a transverse channel located below the lowest device on the building which is in communication at both ends with the outdoors,

Figure 3a shows the front view of the heater according to Figure 3,

Figure 4 shows the vertical section through a building with heaters according to Figure 3, the fresh air instead via the transverse duct via a vertical air duct opening onto the roof to the exhaust duct from is fed from below,

FIG. 4a shows the front view of the heater according to FIG. 4 with exhaust gas air ducts lying next to one another,

Figure 5 shows the vertical section through a building with heaters, where the fresh air is supplied from the roof and the exhaust gases from the heater via a separate exhaust chimney can be led outside, with vertical outlets for fresh air and exhaust gas,

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FIG. 5a shows the front view of the heater according to FIG. 5 with the air duct and the separate exhaust gas ducts, the mouths of which are adjacent to one another on the roof,

Figure 5b exhaust pipe and fresh air pipe are side by side and end with horizontal mouths.

In the multi-storey building 1 according to Figure 1, gas-heated water heaters 3, 4 and connected to the exhaust line 2, which conduct their exhaust gases into the chimney via pipes 6 * These heaters take the necessary fresh air from the respective installation room. They are provided with a built-in flow safety device, which, as is known, in the event of a draft in the chimney 2 either direct additional air through the jacket openings into the chimney if there is too much draft or temporarily divert exhaust gas through the same openings 7 into the installation room in the event of a backlog and backflow. The lower end of the chimney 2 is closed by a removable "cup" 8, while the part 9 of the exhaust gas line 2 that has so far protruded from the roof is covered by a hood ^{at the mouth 9 1.}

If there is a strong wind 12 on the building wall 11, the air 13 flows vertically along the building wall 11 and entrains the air located above the flat roof 14, creating a cross wind 15 which ^{affects the exhaust gas outlet from the mouth 9 1} and the combustion process of the Device interferes. According to the invention, the exhaust pipe 9 is replaced by a two-armed exhaust pipe 16 and this is connected to the vertical exhaust pipe 2 ending at the height of the opposing outer walls 11. The mouths of the exhaust pipe end approximately with the surfaces of both building outer walls and are either formed by short vertical pipe sockets 17 according to FIG. 1 or the ends 16 'of the exhaust pipe 16 are extended by wire baskets 18 according to FIG are.

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In the case of the building 1 with a gable roof 20 according to FIG. 2, with a conventional arrangement of an exhaust gas connection 9 under the same wind conditions, the heater that is in operation is also disrupted for the same reason. The exhaust gas coming from the open heaters 3, 4 and 5 and ^{exiting at the mouth 9 1 of} the exhaust gas connection 9 is hindered in the gable roof 20 by the cross valve 15 as well as in the flat roof according to FIG. 1. The problem is solved in the same way Way as according to Figure 1 and Figure la. Either the mouths are formed by short vertical pipe sockets 17 or one leads the. i ends 16 ^{1 of} the exhaust pipe 16 up to the alignment with the two building walls 11 and provides the same according to Figure 2a with wire baskets 18 as before.

According to FIGS. 3 and 3a, gas water heaters 21, 22 and 23 are connected to a chimney 24 extending vertically through the building 1, the lower end of which is connected to the air duct 25 passing through the building 1 and wherein the heater Take the fresh air from this channel via the tubes 26 and introduce the exhaust gases via the tubes 27 into the same channel.

Under the two aforementioned examples considered wind conditions, a constriction of the exhaust pipe mouth 9 ¹ with simultaneous obstruction of the fresh air supply via the channel 25 through the exhaust pipe 24 connected to the exhaust pipe 24 and at the ends with vertical exhaust gas nozzle 17 or Avoid exhaust pipe 16 provided with wire baskets (18).

In contrast to the examples according to FIG. 3 and FIG. 3a, in which the fresh air is supplied via a transverse duct 25 is introduced into the exhaust pipe 24 from below on the building, opens according to the embodiment of the figure and FIG. 4a the air duct 28 at 28 'directly next to the mouth 24 * of the exhaust pipe 24. Above the cross connection the fresh air enters the exhaust pipe 24. Next to the

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two-armed exhaust pipe 16, which is connected to the exhaust pipe 24 in the is connected in the manner described above, and at both ends of which there are vertical exhaust gas nozzles 17, is similar Way, the fresh air pipe 29 is arranged and connected to the fresh air duct 28. In the same way as the mouths of the exhaust gas connection 17 are formed, are also here the air inlet nozzle 30 is carried out.

Both cable ends on the roof, whether it is a flat roof or a gable roof can be used with the nozzles 17/30 or, as described, with horizontal ends and Protective baskets are carried out.

In Figure 5 and 5a an arrangement (DBP 867 161) of exhaust gas or air duct 31 - 32 is shown, which is known per se, in which the two separate channels are arranged next to one another behind the gas-heated heaters 33, 34 and 35, which are gas-tight from the installation room, and at which the connections to the air duct 32 directly through the back wall of the heater via the openings 36 and the connection with the exhaust chimney 31 is established via the adjacent openings 37.

Fresh air duct 29 and exhaust pipe 16 are arranged in the same way as in the embodiment according to FIGS 4a. The mouths 24 'and 28' can by a common Hood 38 to be protected.

The exhaust pipe 16 and the fresh air pipe 29 can according to FIG 5b end next to one another with horizontal mouths in the same way as is described, for example, for the exhaust pipe 16 in FIG. La and FIG. 2a.

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Claims (4)

Claims l.yExhaust gas and possibly air duct for gas or oil-heated devices, in which an exhaust gas chimney, to which the devices are connected, is arranged vertically within a building and led out with its mouth from the roof of the building, characterized in that the vertical Part (2) of the exhaust pipe at the level of the upper edge of the vessel building wall (11) merges into a two-armed horizontal exhaust pipe (16), the two mouths (17) of which are approximately in the planes of two opposite building walls. 2. exhaust gas and possibly air duct according to claim 1, characterized in that that the mouths are formed by vertical exhaust ports (17) with hoods or plates against protected from rain or snow. 3. exhaust gas and possibly air duct according to claim 1, characterized in that » that the mouths of the ends (16 *) of the horizontal exhaust pipe (16) are formed by Wire baskets (18) are extended, the basket bottom being closed by a plate (19). 4. exhaust gas and possibly air duct according to claim 3, characterized in that that the tops of the rectangular cross-section wire baskets (18) against snow incidence by one each Plate is shielded. 209836/0356 Blank page