DE7139194U - ATMOSPHERIC GAS BURNER - Google Patents

Description

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Essen, October 12, 1971 PZ 2453

Utility model registration:

"Atmospheric gas burner"

Applicant: Rheinstahl Aktiengesellschaft, Essen

The invention relates to an atmospheric gas burner for heating boilers.

Atmospheric gas burners, i.e. gas burners operated without a fan, have the advantage of a low technical effort and, above all, a significantly lower level of noise and a negligible low power consumption, so that they are increasingly used for boilers. When changing the Gas network, e.g. from town gas to natural gas, they can be easily converted by replacing the gas nozzles will.

In practical use of such atmospheric gas burners in the case of bulk consumers, there have now been increasing cases in which it is desirable on the part of the gas supply companies , such burners, e.g. in times of particularly high gas network load, temporarily to another To be able to switch fuel. There is also this desire on the part of the customers, e.g. for a particularly cheap

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To be able to take advantage of the gas tariff.

Such a short-term changeover option has previously only existed with switchable forced draft gas burners that are based on operation can be switched with oil. Such a short-term changeover option was previously available for atmospheric gas burners not given, so that one had to accept the disadvantages of the forced draft gas burner in such cases.

The invention has set itself the task of an atmospheric To create gas burners that have the option of one has short-term conversion to a substitute fuel, the conversion without manual intervention, such as changing of nozzles.

The invention consists in that the burner can be switched to a gaseous substitute fuel, such as liquefied natural gas or liquefied natural gas, to be taken from a storage container, each burner bar with two differently dimensioned gas nozzles with separate gas supply lines for the normally used gas and the auxiliary in is provided use gas coming and wherein each gas supply line is provided for each with the designed for the particular type of gas and the gas pressure valve such as check valve, control valve, pressure regulator, pressure switch and a separate ignition device.

The invention also consists in that the two gas nozzles are concentric in front of the catch nozzles of the injector

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are arranged to each other. Another embodiment of the same is that they are in front of the collecting nozzle of the injector are arranged side by side.

In order to make any manual intervention when switching from one type of gas to the other superfluous, there is the Invention further in that the shut-off and control valves are electrically controlled.

The substitute fuel gas can also be the main fuel gas itself, which compresses in a storage container in excess times or has been liquefied.

An exemplary embodiment of the invention is shown in the drawing.

1 shows an embodiment with gas nozzles arranged concentrically with one another.

Fig. 2 shows one with gas nozzles arranged next to one another.

FIG. 1 shows a single burner bar 1, several of which, connected in parallel, form the burner located in the furnace of the boiler. In front of the catch nozzle I ^{1 of} the injector of the burner bar, the nozzles 2 and 3 are arranged concentrically to one another. The main fuel gas flows through the annular nozzle 3, while the substitute fuel gas flows through the middle nozzle 2. The different

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Gas types are through the collecting lines 4 or 5 to the individual Burner bars supplied, which are connected to the connecting lines 6 and 7. 8 are electrically controlled, combined shut-off and control valves, 9 are pressure regulators and 10 are pressure monitors. The ignition apparatus (not shown!), which is arranged above one of the burner bars is also double in terms of its nozzles and shut-off valves present, the ignition electrodes on the other hand only simple.

In Fig. 2, the gas nozzles 2 * and 3 'are arranged side by side in front of the center of the collecting nozzle 1' of the injector.

Switching from one type of gas to the other is done by simply activating the electrical reversal of the corresponding shut-off and control valves and the ignition device.

Expectations;

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Claims (4)

Protection claims; 1. Atmospheric gas burner for boilers, characterized in that it can be switched to a gaseous substitute fuel such as liquid gas or liquefied natural gas to be taken from a storage container, each burner bar (1) with two differently dimensioned gas nozzles (2,3, 2 ', 3 ') is provided with separate gas supply lines (6,7) for the normally used gas and the auxiliary gas used and each gas supply line (6,7) each with the fitting designed for the respective gas type and gas pressure such as Shut-off valve, control valve (8), pressure regulator (9), pressure monitor (10) and a separate ignition device. ?. Gas burner according to Claim 1, characterized in that the two gas nozzles ( ^{2, 3} ) are arranged concentrically to one another in front of the collecting nozzle (I 1) of the injector «, 3. Gas burner according to claim 1, characterized in that the two gas nozzles (2 ', 3') are arranged side by side in ^{front of the catch nozzle (I 1) of the injector.} 4. Gas burner according to one or more of claims 1-3, characterized in that the shut-off and Re _t ^a elventile (8) are electrically controlled. 7131114 in.