DE2019564A1 - Burners, especially diffusion burners, for gas-heated devices - Google Patents

Description

Junkers 535

PLI-Fu / jPi

April 21, 1970

JUNKERS & CO. GMBH, in Wernau / Neckar

Burners, in particular diffusion burners, for gas-heated devices.

The invention relates to a burner, in particular a diffusion burner, for gas-heated devices with at least one in-line burner which has an elongated gas distribution channel and at least two parallel running at the upper end Has rows of gas outlet openings, of which the openings at least one row to form main flames and the openings at least one other row for the formation of gas tension spaces powered auxiliary flames are provided.

Burners for gas-heated devices are known in various embodiments. Well-known burners are only for that type of gas can be used for which they were designed from the start, e.g. for town gas or liquefied gas. Because of that which is getting bigger and bigger Due to the volume of natural gas and the conversion of gas-heated devices from town gas to natural gas, burners were developed which are known as all gas burners and can be used for all types of gas if a relatively minor adjustment is made,

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However, such an adaptation is not always satisfactory, so that yellow plumbers can occasionally occur, for example in the case of liquefied gas. This Allgasbrenner work with Primärluftansaugung, ie it is a gas-air mixture for combustion, when using gases with low firing rate, the flames tend to ablate the more, the lower the firing rate of the gas. For this reason, the all-gas burners have been provided with auxiliary flames, which are fed by expanded gas and prevent the main flames from being removed. Such a division of the gas into main gas and auxiliary gas requires design adaptations. For this reason, diffusion burners have also already become known in which a part of the gas flow emerging from a gas outlet opening has an effect similar to expansion. Since the consumption of natural gas is increasing, there is an endeavor to use burners which are designed in particular with regard to the use of natural gas and which enable a changeover from one natural gas family to another with a minimum of effort, but also allow use allow town gas, ie can be made usable for types of gas with Vobbe numbers that differ from one another within certain limits.

The invention is based on the object of creating a burner, in particular designed as a diffusion burner, which with allows simple means to adapt to different gases.

The object is achieved in a burner of the type mentioned at the outset according to the invention in that both the gas outlet openings for the main flames as well as the gas outlet openings for the auxiliary flames, each separately on an independent gas distribution channel are arranged and that the gas supply to the separate gas distribution channels, which on the one hand the Main flames and, on the other hand, feed the auxiliary flames, can be controlled independently of one another.

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Junkers 535

In one embodiment it can be provided that the gas distribution s channel e, which on the one hand the main flames and on the other hand the auxiliary flames feed, are mutually adjustable in height.

In a further embodiment, the training is made so that that with a rust-shaped burner with several parallel at a distance row burners running towards each other, all gas distribution channels which feed main flames to a common first distributor pipe and all gas distribution channels, which auxiliary flames feed, are connected to a common second distributor tube provided separately from the first distributor tube.

A burner designed according to the invention is for various Gas types with different Wobbe numbers can be used. The burner can if necessary, can be used for a different type of gas, with only the gas supply to the main flames and to the auxiliary flames is to be controlled for the purpose of coordinating the same with each other with independent throttle devices. In addition, you can For a good flame picture, the separate gas distribution channels, which on the one hand are the main flames and on the other hand feed the auxiliary flames, be adjustable in height relative to each other. The controllability of the auxiliary flames ensures stability of the main flames when using the burner for different. Types of gas.

The object of the invention is explained in more detail using an exemplary embodiment shown schematically in the drawing, ils show:

Pig. 1 is a perspective view of a device according to the invention trained in-line burner;

Fig. 2 is a plan view of a rust-shaped burner with series burners according to Pig. 1.

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* Junkers 535

The drawing shows in Pig. 1 a burner, in particular a diffusion burner, for gas-heated devices with a generally designated series burner, which in a manner known per se an elongated gas distribution channel 11 and at its upper Completion has a row of gas outlet openings 12, which are provided for forming main flames. To both Sides of the gas distribution channel 11 run parallel to two of This independent gas distribution channels 13 and 14 »which gas outlet openings 15 and 16 for forming "auxiliary flames, i.e. that both the gas outlet openings 12 for the main flames and the gas outlet openings 15 and 16 for the auxiliary flames arranged in parallel rows each on an independent gas distribution channel 11 or 13 and 14 are. The gas distribution channels 11 or 13 and 14 »of which the gas distribution channel 11 is the main flames and the gas distribution channels 13 and 14 feed the auxiliary flames, can also be to each other be adjustable in height, so that the auxiliary flames in a certain, can be set in a particularly favorable position relative to the main flames for the operation of the burner. Essential is that the gas supply to the connection pieces 17 or 18 to the gas distribution channels 11 or 13 and H, which are separate from one another can be controlled independently of one another by means of a throttle point, not shown. The gas distribution channels 13 and 14 can be connected together to the same connection piece 18.

In Pig. 2 is a grate-shaped burner with several spaced apart Row burners 10 running parallel to one another are shown. These in-line burners 10 have the same design as those in FIG Pig. ί on.

According to Pig. 2, however, are all gas distribution channels 11, which Feed main flames to a common first manifold 19 and all gas distribution channels 13 and 14, which are auxiliary flames feed, to a provided separately from the first manifold 19

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common second manifold 20 connected. At the beginning of two separate distribution pipes 19 and 20 is each an independently controllable, for example designed as a plug cock. Throttle point 21 or 22 is provided. The gas supply to the gas distribution channels 11 with the gas outlet openings is controlled by means of the throttle point 21 12 controlled for the main flames. The gas supply to the gas distribution channels 15 and H is independent of this the gas outlet openings 15 and 16 for the auxiliary flames by means of the throttle point 22 adjustable. This adjustability of the gas supply ensures optimal operation of the burner and its applicability for different types of gas, since both the main flames and the auxiliary flames to achieve an optimal one Flame pattern and to ensure proper holding the main flames can be adjusted individually.

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Claims (1)

Junkers 535 Expectations .! Burners, especially diffusion burners, for gas-heated devices with at least one in-line burner, which has an elongated gas distribution duct and at least at its upper end has two parallel rows of gas outlet openings, of which the openings at least one row to form Main flames and the openings of at least one other row to form auxiliary flames fed from gas expansion spaces are provided, characterized in that that both the gas outlet openings (12) for the main flames and the gas outlet openings (15, 16) for the auxiliary flames each for themselves on an independent gas distribution channel (11 or 13, H) are arranged and that the gas supply from the mutually separate gas distribution channels (11 or 13, H), which on the one hand are the main flames and on the other hand feed the auxiliary flames, can be controlled independently of each other. 2 "Burner according to claim 1, characterized in that that the gas distribution channels (11 or 13 »H), which on the one hand the main flames and on the other hand the auxiliary flames feed, are mutually adjustable in height. 3. Burner according to claim 1 or 2, characterized in that, that in the case of a grate-shaped burner with several series burners running parallel to one another at a distance (1υ) all gas distribution channels (11) which feed main flames, to a common first distributor pipe (19) and all gas distribution channels (13, H) which feed auxiliary flames on separately from the first distributor pipe (19) provided common second distributor pipe (20) are connected. 09845/0853