WO2016166335A2

WO2016166335A2 - Heating device and heating method

Info

Publication number: WO2016166335A2
Application number: PCT/EP2016/058433
Authority: WO
Inventors: Markus Stehle; Christian Schilling; Franz Hepp; Tobias BEIß
Original assignee: Bielomatik Leuze Gmbh + Co. Kg
Priority date: 2015-04-17
Filing date: 2016-04-15
Publication date: 2016-10-20
Also published as: DE102015207056A1; WO2016166335A8; WO2016166335A3

Abstract

In order to create a heating device, for example for heating thermoplastic materials, which has a simple design and allows for optimized heat output, the heating device comprises the following: a burner unit that includes a combustion chamber inside which hot waste gas can be made available by chemically reacting fuel and oxidizer; and a flow unit which allows the waste gas to be fed to an object area that is to be heated.

Description

Heating device and heating method

The present invention relates to a heating device and a heating method, for example for heating thermoplastics. In particular, the heating device and / or the heating method can be used for welding plastic parts.

Such heaters and heating methods are known for example from DE 10 2007 026 163 AI or DE 10 2010 007 317 AI.

The present invention has for its object to provide a heating device, which is simple and allows an optimized heating result.

This object is achieved according to the invention by a heating device for heating an object, the heating device comprising:

a burner device comprising a combustion chamber, wherein in the combustion chamber by means of chemical reaction of fuel and oxidant heated exhaust gas can be provided;

a flow device by means of which the exhaust gas can be fed to a region of the object to be heated.

A region of the object to be heated is preferably a part of the object, for example an edge or a predetermined surface.

Preferably, the object is only partially, partially, linearly or selectively heated by means of the heating device.

However, it can also be provided that the object is completely, in particular uniformly, heated by means of the heating device. - -

In one embodiment of the invention, it can be provided that a shape of the combustion chamber at least approximately corresponds to a shape of the region of the object to be heated. This can be provided in particular when the region of the object to be heated is flat and substantially perpendicular to a flow direction of the exhaust gas.

For example, it can be provided that an edge region of the object is to be heated by means of the heating device. The combustion chamber then preferably has a shape corresponding to the edge region.

A shape of the combustion chamber is preferably understood to mean a cross-sectional shape with respect to a sectional plane taken substantially perpendicular to a flow direction of the exhaust gas.

The combustion chamber of the burner device is preferably that space in which the fuel and the oxidizer react with one another, in particular in a normal operation of the heating device. In particular, it may be provided that the combustion chamber is that space in which at least about 80%, preferably at least about 90%, for example at least about 95%, of the fuel supplied to the burner device is chemically converted.

The burner device may, for example, comprise a feed distributor space. In particular, the feed distributor space is a space through which the fuel and / or the oxidizer are passed, in order ultimately to be supplied to the combustion chamber.

One or more supply lines for supplying fuel, for supplying oxidizer and / or for supplying a mixture of fuel and oxidizer preferably adjoin the feed distributor space.

The Zuführverteilerraum can serve, for example, the mixing of the supplied fuel with the supplied oxidizer, so that the mixture of - -

Fuel and oxidizer preferably uniformly and homogeneously can be fed to the combustion chamber.

Alternatively or additionally, it may be provided that the feed distributor space serves for spatially uniform feeding of the mixture of fuel and oxidizer to the combustion chamber. In particular, it may be provided for this purpose that the feed distributor space is adjacent to the combustion chamber in a planar manner and is fluid-effectively connected to the combustion chamber, for example by means of a multiplicity of fluid connections, for example passage openings in a separating plate.

However, it can also be provided that between the Zuführverteilerraum and the combustion chamber, a flashback to avoid a flashback from the combustion chamber is arranged in the Zuführverteilerraum. The check-back space preferably has one or more of the features and / or advantages described in connection with the combustion chamber and / or the feed distributor space.

It may be favorable if the shape of the feed distributor space corresponds at least approximately to a shape of the region of the object to be heated.

The shape of the feed distributor space is preferably a cross-sectional shape of the feed distributor space with respect to a plane extending perpendicular to the flow direction of the exhaust gas.

The flow direction of the exhaust gas is preferably that direction in which a main mass flow of the exhaust gas flows out of the combustion chamber and / or out of the flow device.

Preferably, the flow direction of the exhaust gas is that direction in which one or more of the following components are arranged consecutively: - a feeder distribution room,

a setback room,

a combustion chamber,

a homogenizing room,

an exhaust manifold and / or

an application device of the heating device.

It can be advantageous if the burner device comprises an exhaust gas distribution space.

An exhaust gas distribution chamber is preferably a space to which exhaust gas (combustion exhaust gas) can be supplied from the combustion chamber in order to distribute this exhaust gas uniformly or selectively to an application device.

The exhaust gas distribution chamber preferably has a shape which at least approximately corresponds to a shape of the area of the object to be heated.

The shape of the exhaust gas distribution chamber is in particular a cross-sectional shape of a cross section through the exhaust gas distribution chamber with respect to a plane perpendicular to a flow direction of the exhaust gas.

It can be provided that the exhaust gas distribution chamber directly adjacent to the combustion chamber, for example, only by means of a partition plate, in particular a partition plate provided with a throttle device, is separated from the combustion chamber.

However, it can also be provided that a homogenization chamber of the heating device is arranged between the combustion chamber and the exhaust gas distribution chamber.

A homogenization chamber of the heating device serves, in particular, for equalization and homogenization of the exhaust gas. In particular, due to An exhaust gas flow with essentially constant properties can be achieved by flowing through the homogenizing chamber, in particular no or only slight fluctuations in the residual fuel content, the temperature and / or the pressure.

The homogenization chamber is in particular directly adjacent to the combustion chamber, for example separated from the combustion chamber only by means of a partition plate provided with passages.

Furthermore, the homogenization space is preferably directly adjacent to the exhaust-gas distribution chamber, for example separated from the exhaust-gas distribution chamber by means of a partition plate provided with through-openings and / or a throttle device.

The homogenization space preferably has a shape which at least approximately corresponds to a shape of the area of the object to be heated.

The shape of the homogenization space is in particular a cross-sectional shape of the homogenization space with respect to a plane perpendicular to the flow direction of the exhaust gas.

In particular, it can be provided that both the feed distribution chamber, the combustion chamber and the exhaust gas distribution chamber and optionally also a homogenization space and / or a flashback space of the heating device have at least approximately the same shape, in particular cross-sectional shape.

For example, it may be provided that the feed distributor chamber, the combustion chamber, the exhaust gas distributor chamber and optionally also a homogenization chamber and / or a flashback chamber of the heating device have mutually aligned lateral boundary walls. - -

The cross-sectional shapes of the feed distributor chamber, the flashback chamber, the combustion chamber, the exhaust gas distributor chamber and / or the homogenization chamber are preferably substantially congruent, in particular at least approximately identically to one another by parallel displacement along the flow direction of the exhaust gas.

It can be provided that a region of the object to be heated is height profiled. In particular, it may be provided that the area to be heated in a position of the object, in which the area to be heated is to be heated by means of the heating device, sections having different distances from the combustion chamber.

A cross-sectional shape of the combustion chamber taken perpendicular to a flow direction of the exhaust gas preferably corresponds at least in sections and at least approximately to a shape which the region of the object to be heated has, when the region of the object to be heated projects along the flow direction into a plane perpendicular to the flow direction of the exhaust gas becomes .

Alternatively or additionally, it may be provided that the burner device comprises a feed distributor space whose cross-sectional shape taken perpendicular to a flow direction of the exhaust gas corresponds at least in sections and at least approximately to a shape which the region of the object to be heated has, if the region of the object to be heated is longitudinal the flow direction is projected in a direction perpendicular to the flow direction of the exhaust gas plane.

Furthermore, as an alternative or in addition to this, it can be provided that the burner device comprises a homogenization chamber whose cross-sectional shape taken perpendicular to a flow direction of the exhaust gas at least in sections and at least approximately corresponds to a shape that the region of the object to be heated has, if the - - Heated portion of the object along the flow direction is projected in a plane perpendicular to the flow direction of the exhaust gas plane.

Furthermore, as an alternative or in addition to this, it can be provided that the burner device comprises an exhaust gas distribution chamber whose cross-sectional shape taken perpendicular to a flow direction of the exhaust gas at least in sections and at least approximately corresponds to a shape which the region of the object to be heated has, if the region of the object to be heated along the flow direction in a direction perpendicular to the flow direction of the exhaust gas plane is projected.

Preferably, the exhaust gas distribution chamber, the flashback space, the combustion chamber, the homogenization chamber, the exhaust gas distribution chamber and / or the area to be heated of the object at least partially and at least approximately the same shape, when all rooms and the area along the flow direction of the exhaust gas in a direction perpendicular to the flow direction projected plane of the exhaust gas can be projected.

A main extension direction of the feed distribution space, the flashback space, the combustion chamber, the exhaust gas distribution space and / or the homogenization space is preferably in each case in a direction perpendicular to the flow direction of the exhaust gas plane.

It may be favorable if the feed distributor space, the flashback space, the combustion space, the homogenization space and / or the waste gas distribution space are substantially annular, wherein a respective central center axis is preferably aligned substantially parallel to the flow direction of the waste gas.

In an embodiment of the invention, it can be provided that a projection of the region of the object to be heated counter to a flow direction of the exhaust gas at least approximately completely through the exhaust gas distribution chamber, the homogenization chamber, the combustion chamber, the flashback - - and / or the Zuführverteilerraum runs. This is to be understood in particular as meaning that a projection of the region of the object to be heated counter to a flow direction of the exhaust gas does not flow laterally, that is to say perpendicular to the flow direction, via the exhaust gas distribution chamber

Homogenization, the combustion chamber, the flashback and / or the Zuführverteilerraum protrudes.

It may be favorable if the area of space which is swept by the area of the object to be heated during (imaginary) displacement thereof opposite to the flow direction preferably crosses the exhaust distributor space, the homogenization space, the combustion space, the flashback space and / or the feed distributor space in such a way that the swept area in the region of the exhaust manifold, the Homogenisierraums, the combustion chamber, the flashback and / or Zuführverteilerraums at least approximately completely, in particular at least about 70%, for example at least about 90%, preferably 100%, within the exhaust manifold, within the Homogenisierraums, within the combustion chamber, within the flashback or within the Zuführverteilerraums lies.

It may be advantageous if a Zuführverteilerraum, a flashback chamber, the combustion chamber, a homogenization chamber and / or an exhaust gas distribution chamber of the heater along the flow direction of the exhaust gas adjacent portions of a hollow cylinder.

Preferably, the base surface of the hollow cylinder has a shape which corresponds at least approximately to a shape that the area of the object to be heated has, when the region of the object to be heated is projected along the flow direction into a plane perpendicular to the flow direction of the exhaust gas.

A feed distribution chamber of the heating device on the one hand and the combustion chamber or a flashback chamber on the other hand are preferably by means of a return - -

Impact protection to avoid a flashback, in particular by means of a flashback, and / or separated by a flow plate and / or by means of a flame-limiting plate.

A flow plate is preferably formed of a nonwoven material, a sintered metal, a woven material, a metal foam or other permeable material.

Under a flow plate is preferably a plate of an open-pored or provided with a plurality of flow passages material to understand. A flow plate can thus be flowed through in particular by the mixture of fuel and oxidizer.

Preferably, the flow plate is formed of a non-combustible material.

Preferably, the flow plate is used for flame anchoring.

A non-return device for preventing a flashback and / or a flow plate and / or a flame-limiting plate are preferably a separating plate between the Zuführverteilerraum and / or the non-return space and / or the combustion chamber, which at least locally causes an increase in the flow rate of the supplied mixture of fuel and oxidizer such in that the flow velocity is higher than the flame velocity.

A flame limiting plate is preferably a partition plate between the feed distribution space or the flashback space on the one hand and the combustion chamber on the other. The flame-limiting plate preferably has a passage opening (recess) which at least approximately has the shape of the combustion space and / or the feed distributor space. In particular in a thickness direction running perpendicular to the flow direction of the exhaust gas, the passage opening (recess) of the flame arrester However, - tion plate preferably formed narrower than the combustion chamber, the flashback and / or the Zuführverteilerraum.

It can be advantageous if the homogenizing chamber and the combustion chamber are separated from one another by means of a separating plate, which is provided in particular with a multiplicity of passage openings, for example bores.

Alternatively or additionally, it can be provided that the homogenization chamber and the exhaust gas distribution chamber are separated from each other by means of a partition plate, which is provided in particular with a multiplicity of passage openings, for example bores.

The combustion chamber or the homogenization chamber on the one hand and an exhaust gas distribution chamber of the heating device on the other hand are preferably separated from one another by means of a throttle device.

It may be favorable if the heating device comprises a throttle device for varying an exhaust gas volume flow of the exhaust gas to be supplied to the region of the object to be heated.

The throttling device may, for example, be the throttle device arranged between the combustion chamber or the homogenizing chamber on the one hand and the exhaust gas distributor chamber on the other hand, or a throttle device different therefrom.

It may be favorable if a throttle device comprises one or more throttle elements. Preferably, one or more throttle elements between the combustion chamber or a homogenization of the heater on the one hand and an exhaust manifold of the heater on the other hand are arranged. - -

It may be favorable if the throttle device comprises a plurality of throttle elements arranged in a throttle plate, for example throttle valves, which are arranged distributed in particular following a shape of the combustion chamber, of the homogenization space and / or of the exhaust distributor space.

A throttle element may be formed, for example, by a screwable into the throttle plate screw. By screwing the screw element into the throttle plate at different distances, preferably a variation of the flow cross section and thus the throttling of the exhaust gas flow can be achieved.

It may be favorable if the area of the object to be heated, the

Combustion chamber, a flashback space, a Zuführverteilerraum, a homogenization chamber and / or an exhaust gas distribution chamber are formed annularly closed.

It may be provided that the combustion chamber, a flashback space, a feed distributor space, a homogenization space and / or an exhaust distribution space of the heating device are each designed to be continuous, ie in each case formed by a single annular, uninterrupted space.

Furthermore, it can be provided that the combustion chamber, a flashback space, the feed distributor space, the homogenization space and / or the exhaust distribution space of the heating device is provided with one or more partitions, which divide the respective space into different space segments, in particular in a direction perpendicular to the flow direction.

The dividing walls can be designed to be continuous along the direction of flow, so that the different space segments are not connected to one another in a fluid-efficient manner, in particular. - -

However, it can also be provided that one or more partition walls extend with respect to the flow direction of the exhaust gas only over a part of the respective space, so that a fluid-effective connection between two adjacent space segments is maintained.

In particular, an annularly continuous space can thereby be formed, which, in particular with respect to the flow direction of the exhaust gas downstream, is divided into a plurality of space segments by means of one or more partitions.

All of the features and / or advantages mentioned in connection with a "space" or "space segment" can preferably be realized in the feed distributor space, the flashback space, the combustion space, the homogenization space and / or the waste gas distribution space.

It can be advantageous if the combustion chamber, a flashback space, a feed distributor space, a homogenization space and / or an exhaust gas distribution space of the heating device are segmented. In particular, partition walls extending parallel to the flow direction of the exhaust gas are provided for this purpose. The combustion chamber, the flashback space, the feed distributor space, the homogenization space and / or the exhaust gas distribution space are thus subdivided into separate segments, in particular in a direction perpendicular to the flow direction.

In particular, it can be provided that the combustion chamber, the flashback space, the feed distributor space, the homogenization space and / or the exhaust gas distributor space of the heating device are segmented in a circumferential direction with respect to a flow direction of the exhaust gas.

In particular, combustion chamber segments of the combustion chamber, flashback segments of the flashback chamber, feed distributor chamber segments of the feed distributor chamber, homogenization chamber segments of the homogenization chamber and / or exhaust distributor chamber segments of the exhaust distributor chamber are preferably formed. - -

The respective space segments are in particular in a circumferential direction adjacent segments, which together form the entire space, in particular a ring-shaped space.

It may be favorable if the combustion chamber is segmented and if each combustion chamber segment is assigned an ignition device of the heating device for igniting a combustible gas mixture of fuel and oxidizer.

An ignition device is in particular a spark plug.

It may be advantageous for the combustion chamber to comprise fluid-effectively directly connected combustion chamber segments, wherein due to the fluid-effective connection, a flame arranged in a combustion chamber segment can spread to at least one further combustion chamber segment, in particular to all other combustion chamber segments. In this case, therefore, a single ignition device in a single combustion chamber segment for igniting the gas mixture in all combustion chamber segments may be sufficient.

In one embodiment of the invention can be provided that a Zuführverteilerraum the heater, a flashback of the heater, the combustion chamber, a homogenization of the heater and / or an exhaust manifold of the heater are arranged together in a base body of the heater and / or formed.

The main body of the heating device preferably has a layer structure.

For example, it can be provided that the main body comprises a plurality of recesses and / or with openings provided plates, wherein the recesses and / or the passage openings the feed distribution chamber of the heater, the non-return space of the heater - -

Combustion chamber, the homogenization of the heater and / or the

Form the exhaust manifold of the heater.

Further plates or layers of the main body preferably form partition plates for separating the spaces from each other.

It can be provided that the plurality of layers and / or plates of the base body connected to each other, in particular screwed, jammed or welded, are.

A seal to the outside preferably results from the connection, in particular a clamping connection or welded connection.

In one embodiment of the invention, it is provided that the heating device comprises an application device for applying the exhaust gas to the area of the object to be heated.

By means of the application device, in particular the exhaust gas provided (generated) in the combustion chamber can be directed to the region of the object to be heated.

It may be favorable if the application device comprises a plurality of application tubes, which in particular have a shape of the one to be heated

Area of the object next to each other are lined up.

An application tube is in particular a hollow cylinder whose length exceeds the inner diameter by preferably at least approximately three times, preferably at least approximately five times, for example at least approximately ten times.

It may be favorable if the application tubes are formed from a metallic material. - -

The application device is preferably adapted to the three-dimensional shape of the area of the object to be heated.

It may be favorable if the application device comprises an application plate on which the application tubes are arranged.

In particular, the plate is preferably flat and flat and constitutes a boundary of the exhaust gas distribution chamber in the flow direction of the exhaust gas.

It may be favorable if the application tubes have different lengths and thereby the application device is adapted to the three-dimensional shape of the area of the object to be heated.

For example, it can be provided that the lengths of the application tubes are selected so that in the position of the object in which the region of the object to be heated is to be heated, a distance between the end of the respective application tube facing the object and the region to be heated at most is about 10 mm, for example at most about 5 mm, in particular at most about 3 mm, and / or at least about 0.5 mm, for example at least about 1 mm, in particular at least about 2 mm.

The application tubes preferably have different straight and / or beveled ends, so that preferably the ends themselves have a shape adapted to the local contour of the region to be heated.

It may be favorable if all application tubes have the same inner diameter.

Alternatively, application tubes with different inner diameters can be provided. - -

Preferably, all application tubes are arranged and / or aligned parallel to one another.

In one embodiment of the invention can be provided that the application tubes are arranged at different distances from each other.

The distances of the application tubes from one another are preferably smaller when the exhaust gas applied by means of the respective application tubes impinges on the region of the object to be heated at a more acute angle, and larger when the exhaust gas applied by means of the respective application tubes is at a blunt angle to the region to be heated of the object. As a result, a uniform flow of the area to be heated with exhaust gas can preferably be achieved in order to ultimately ensure a uniform heating of the area to be heated.

The application device is preferably part of the flow device.

Preferably, the application device comprises a plurality of application tubes, which are fixed to a common application plate, wherein the application plate preferably limits the exhaust gas distribution chamber in the flow direction of the exhaust gas and / or is part of the main body of the heating device.

In one embodiment of the invention, it may be provided that the heating device comprises an application device for applying the exhaust gas to the area of the object to be heated, wherein the application device comprises a plurality of application tubes, the heating device being a throttle device for varying an exhaust gas volume flow of the region of the object to be heated comprising, the throttle device comprises a plurality of throttle elements, wherein in each case one or more throttle elements are each associated with one or more application tubes. - -

By means of the one or more throttle elements may preferably be a targeted exhaust gas supply to one or more application tubes are made possible to ultimately preferably to ensure a uniform flow of the heated region of the object with exhaust gas.

The present invention further relates to a heating method for heating an object.

The invention is in this respect the task of providing a heating method, by means of which an optimized heating result can be achieved.

This object is achieved by a heating method for heating an object, wherein fuel and oxidizer a heater, in particular a heater according to the invention, are supplied, wherein in the combustion chamber of the burner device of the heater exhaust gas is generated, which via the flow device of the burner device to be heated area the object is supplied.

It may be favorable if a mixture of fuel and oxidizer is fed to a plurality of burner segments of the burner device.

Preferably, the mixture of fuel and oxidizer is converted into exhaust gas adapted to a shape and / or contour of the region of the object to be heated by means of the burner segments.

Furthermore, it can be provided that, adapted to a shape and / or contour of the region of the object to be heated, the generated exhaust gas is supplied to the region of the object to be heated by means of the burner segments. - -

It can be advantageous if different burner segments of the burner device, a mixture of fuel and oxidizer with different flow rates is supplied.

The exhaust gas streams generated by means of a plurality of burner segments of the burner device are preferably supplied with different volume flows to different application tubes of an application device of the heating device and applied to the region of the object to be heated by means of these application tubes.

The heating method according to the invention preferably also has one or more of the features and / or advantages described in connection with the heating device and / or heating system according to the invention.

In addition, the heating device according to the invention may preferably have one or more of the features and / or advantages described in connection with the heating method according to the invention.

The heating system according to the invention preferably also has one or more features and / or advantages which are described in connection with the heating device according to the invention and / or the heating method according to the invention.

It may be favorable if the heating device comprises a gas feed for supplying fuel and / or oxidizer to the burner device.

The gas supply preferably comprises a mixing device for mixing the fuel with the oxidizer, in particular for providing a combustible mixture of fuel and oxidizer.

It may be favorable if the gas supply comprises a distributor device with one or more distributor valves. - -

By means of one or more distribution valves of the gas supply is preferably the Zuführverteilerraum fuel and / or oxidizer and / or a mixture of fuel and oxidizer supplied.

Preferably, fuel and / or oxidizer and / or a mixture of fuel and oxidizer can be fed to the feed distributor space separated from one another by means of a plurality of distributor valves of the gas feed. By means of the distribution valves can thus preferably be influenced selectively, which volume flow of the mixture of fuel and oxidant via the Zuführverteilerraumsegmente the associated

Brennraumverteilersegmenten is fed.

It may be favorable if the feed distributor space, a flashback space, the combustion space, the homogenization space and / or the exhaust gas distribution space are essentially identically segmented, so that in particular in the

Flow direction of the exhaust gas sequential space segments have at least approximately the same cross-sectional area and / or cross-sectional shape.

By deliberately influencing the volume flow of the fuel and / or the oxidizer and / or the mixture of fuel and oxidizer by means of a distribution valve of the gas supply, the exhaust gas volume flow in the individual exhaust gas distribution chamber segments can thus be adjusted selectively in order ultimately to influence the exhaust gas application in segments, in particular for uniform Heating or targeted local different heating of the heated area of the object.

The gas supply preferably comprises a mixing device, which is arranged in particular upstream or downstream of the one or more distribution valves. In particular, the mixing device serves to provide a combustible mixture of fuel and oxidizer. - -

Preferably, one or more flashback fuses are provided in the gas supply, in particular upstream or downstream of the one or more distribution valves.

It may be favorable if the gas supply comprises one or more non-return valves.

In particular, one or more distribution valves may each comprise one or more check valves.

The burner device preferably comprises a plurality of ignition devices, in particular spark plugs, which protrude in particular into the combustion chamber, preferably into different combustion chamber segments of the combustion chamber.

It may be favorable if a space, in particular a feed distributor space, a flashback space, the combustion space, a homogenization space and / or an exhaust gas distribution space, is divided into three, four, six, eight or more than eight space segments.

Preferably, along the flow direction of the exhaust gas, a supply distributor space segment, a check chamber segment, a combustion chamber segment, a homogenization space segment and / or an exhaust gas distribution chamber segment are arranged successively, which together form a burner segment.

Preferably, the burner device is formed from a plurality of burner segments, wherein the burner segments are arranged in particular annular.

However, it can also be provided that one, two or three rooms are not segmented, while the three others, the two others or the other room are correspondingly segmented.

For example, combustible gas, in particular natural gas, methane, ethane, propane, butane, etc., may be provided as fuel for the burner device. - -

In particular, air is used as the oxidizer.

The heater is in particular part of a heating system.

Preferably, the heating system comprises two heating devices which are in particular substantially mirror-symmetrical to one another with respect to a plane extending substantially perpendicular to the flow direction of the exhaust gas, in particular a transverse center plane of the heating system.

Preferably, exhaust gas generated by the two heaters can be applied in opposite and / or opposite flow directions.

These two heating devices can be introduced, in particular, between two objects to be connected to one another in order to heat the two objects to be connected to one another at least locally and to connect them together by subsequent compression.

The heating system is thus in particular a welding system for plastic welding.

Further preferred features and / or advantages of the invention are the subject of the following description and the drawings of exemplary embodiments.

In the drawings show:

1 shows a schematic section through a heating device designed as a welding device, which comprises two heating devices;

FIG. 2 shows a schematic perspective view of a gas supply of a heating device of the heating system from FIG. 1; FIG. - -

Fig. 3 is an enlarged view of the area III in Fig. 1; a schematic section through a burner device and a flow device of an alternative embodiment of a heating device;

Fig. 5 is a schematic perspective view of a base portion of a burner apparatus;

Fig. 6 is a schematic plan view of an alternative embodiment of a base portion of a burner apparatus;

7 shows a schematic perspective illustration of a dividing wall for dividing a feed distributor space into a plurality of feed distributor space segments;

Fig. 8 is a schematic perspective view of a partition plate of a burner apparatus;

9 is a schematic perspective view of a base portion of a burner apparatus, wherein a partition plate and a spacer plate are disposed on the base portion;

FIG. 10 is a schematic representation corresponding to FIG. 9 of the component composite from FIG. 9, wherein additionally a flow plate and a flame-limiting plate are provided;

Fig. 11 is an enlarged view of the area XI in Fig. 10;

FIG. 12 shows a schematic perspective view corresponding to FIG. 10

Representation of the composite component of Figure 10, wherein additionally a combustion chamber plate is provided with igniters. - -

FIG. 13 is a schematic perspective view of a throttle plate of a throttle device of a combustor; FIG.

Fig. 14 is an enlarged view of the area XIV in Fig. 13;

Fig. 15 is a schematic perspective corresponding to FIG. 12

Representation of the component composite of FIG. 12, wherein additionally a plurality of spacer plates and the throttle plate of FIG. 13 are provided;

16 shows a schematic perspective view of an application device of a flow device of a heating device, in which a flow plate and a plurality of substantially identical application tubes are provided;

Fig. 17 is a schematic perspective view of a means of

Heating device partially heated object; and

Fig. 18 is a schematic side view of an alternative embodiment of an application device, in which application tubes are provided with different lengths and with different lateral distances from each other.

Identical or functionally equivalent elements are provided with the same reference numerals in all figures.

The Fig. 1 shows a schematic section through an embodiment of a heating system designated as a whole as 100.

The heating system 100 serves, for example, for heating objects 102. - -

In particular, by means of the heating system 100, regions 104 of one or more objects 102 to be heated are preferably heatable.

The heating system 100 is designed, for example, as a welding device 106 for welding plastic components.

The plastic components are then the objects 102.

Preferably, the heating system 100 comprises two heating devices 108, which are arranged and / or formed substantially mirror-symmetrically with respect to a transverse center plane 110 of the heating system 100.

By means of the heating devices 108, it is possible, in particular, to heat regions 104 of two objects 102 that are substantially complementary to one another in order to bring these two objects 102 together after heating and thus to join them in a materially bonded manner.

Hereinafter, a heater 108 will be discussed in detail. The further heating device 108 is preferably constructed substantially identical or mirror-symmetrically thereto.

Only the exact shape and / or arrangement of application tubes to be described later of an application device to be described is preferably chosen differently for each heating device 108, in order to allow optimal adaptation to the area 104 of the objects 102 to be heated.

A heater 108 preferably includes a burner device 112 for providing heated exhaust gas (hot exhaust gas).

Furthermore, the heating device 108 comprises a flow device 114, by means of which the exhaust gas can be fed to the region 104 of an object 102 to be heated. - -

To supply the burner device 112 with fuel and / or oxidizer, each heater 108 includes a gas supply 116.

Each gas supply 116 preferably includes a mixing device 118 for mixing fuel and oxidizer and thus providing a combustible mixture of fuel and oxidizer.

Further, each gas supply 116 includes one or more distribution valves 120 and one or more supply lines 122.

The mixing device 118 may be located upstream or downstream of the one or more distribution valves 120.

In the embodiment illustrated in FIG. 1, it is provided that the mixing device 118 is arranged upstream of a plurality of distribution valves 120 of the gas supply 116.

By means of the distributor valves 120, the mixture of fuel and oxidizer generated in the mixing device 118 can be supplied to a plurality of feed lines 122 of the gas feed 116 and, with this, finally to the burner device 112.

As in particular Fig. 2, the gas supply 116 may include one or more flashbacks 124, such as one or more flashback cartridges 126. These non-return valves 124 are arranged, for example, downstream of each distributor valve 120, in order to prevent damage to the distributor valves 120 in the event of a flashback.

The heating device 108 preferably comprises a main body 128 in which the burner device 112 is arranged and / or formed (see FIGS. 3 and 4). - -

The main body 128 is formed, for example, as a stack of a plurality of plates, in particular metal plates. In particular, it can be provided that the base body 128 is substantially cuboid.

Preferably, a plurality of spaces of the burner device 112 are formed within the main body 128.

The Fig. FIGS. 3 and 4 show different embodiments of a heater 108 and serve to further explain in detail the structure and operation of the heater 108.

The burner device 112 preferably comprises a feed distributor space 130, to which the mixture of fuel and oxidizer can be supplied by means of the feed lines 122 of the gas feed 116.

Adjacent to the supply manifold 130 is a flashback chamber 132 of the burner apparatus 112.

The Zuführverteilerraum 130 and the check-chamber 132 are preferably separated from each other by means of a non-return valve 124.

The non-return guard 124 is, for example, a partition plate 134, which is preferably provided with a plurality of passage openings 136.

The passage openings 136 are in particular dimensioned such that a flow velocity of the flowing mixture of fuel and oxidizer during normal operation of the heater 108 is at least locally greater than the flame propagation speed, in particular to avoid an undesirable flashback from the flashback chamber 132 in the Zuführverteilerraum 130. - -

Adjoining the flashback chamber 132, a combustion chamber 138 of the burner device 112 is provided.

The combustion chamber 138 and the flashback chamber 132 are preferably separated from one another by means of a flow plate 140 and by means of a flame-limiting plate 142.

The flow plate 140 is formed, for example, as a metallic fleece (fuel fleece), as a sintered plate or as an other material-flow-through element. In particular, the flow plate 140 is formed of a non-combustible material.

The flame-limiting plate 142 preferably includes a recess 144. By means of the flame-limiting plate 142 is preferably a

Flow cross-section of the flowing from the flashback chamber 132 into the combustion chamber 138 mixture of fuel and oxidizer of a specification shaped accordingly to achieve a desired flame propagation in the combustion chamber 138.

Burner device 112 further includes one or more igniters 146, such as one or more spark plugs 148. Ignition devices 146 preferably protrude into combustion chamber 138 to ignite the fuel and oxidant mixture disposed therein.

The in Figs. 3 and 4 illustrated embodiments of a heating device 108 differ in particular from each other that in the in Fig. In fig. 4, downstream of the combustion chamber 138, a homogenization chamber 150 of the burner device 112 is provided and separated from the combustion chamber 138 by means of a partition plate 134.

In the in Fig. 3 illustrated embodiment of a heater 108, such a separate Homogenisierraum 150 is not provided. Rather, a homogenization in the embodiment of the illustrated in Fig. 3 - -

Heating device 108 are preferably achieved by extended configuration of the combustion chamber 138.

Common to both embodiments, however, is an exhaust manifold 152 of the burner apparatus 112.

The exhaust gas produced in the combustion chamber 138 can thus be supplied to the exhaust gas distribution chamber 152 with a separate homogenization chamber 150 or without such.

The combustion space 138 or the homogenization space 150 on the one hand and the exhaust gas distribution space 152 on the other hand are separated from one another by means of a throttling device 154.

The throttle device 154 comprises in particular a throttle plate 156, in which in particular one or more, in particular adjustable, throttle elements 158 are arranged.

The throttle elements 158 are, in particular, screw elements or other adjustable elements which, for example by means of a closure cone, a closure needle, one or more cover elements, diaphragm elements or the like, allow a variation of a flow cross section of passage openings 136 arranged in the throttle plate 156.

By means of the throttling device 154, preferably an exhaust gas volume flow, which is supplied to the exhaust gas distribution chamber 152, can be set locally variably.

The heating device 108 further comprises an application device 160.

By means of the application device 160, the exhaust gas generated by means of the burner device 112 can be applied to the region 104 of an object 102 to be heated. - -

For this purpose, the application device 160 comprises in particular a plurality of application tubes 162, via which the exhaust gas can be selectively supplied to the region 104 of the object 102 to be heated.

The application tubes 162 are in particular fixed to an application plate 164 of the application device 160, for example, screwed tight and / or welded.

The application plate 164 is preferably part of the main body 128. In particular, the application plate 164 serves to limit the exhaust distributor space 152.

The application tubes 162 adjoin the exhaust manifold 152 at one end. The further end of the application tubes 162 faces the region 104 of the object 102 to be heated. In a state of the heater 108 in which the heated portion 104 of the object 102 is heated, a distance between the ends of the application tubes 162 and the portion 104 of the object 102 to be heated is preferably between about 2 mm and about 5 mm.

The application tubes 162 are preferably elongated, with a length L preferably exceeding an inner diameter I by at least about three times, for example at least about ten times.

The burner device 112 may be formed unsegmentiert, so that the functionally different spaces are not subdivided and thus formed consistently.

However, it can also be provided that the burner device 112 is formed at least partially segmented. At least individual rooms 130, 132, 138, 150, 152 of the burner apparatus 112 are then preferred - - segmented, that is divided into different subspaces (segments). The segments are in particular fluidically separated from each other.

The entire burner device 112 may thus be formed, for example, from a plurality of burner segments 166. Each burner segment 166 preferably has a longitudinal section, which essentially corresponds to that shown in FIG. 3 or in Fig. 4 section corresponds.

The description of the individual elements of the heating system 100 and / or the heating device 108 preferably relates to a flow direction 168 of a gas passed through the respective heating device 108.

The flow direction 168 is in particular a main flow direction of the exhaust gas.

This main flow direction is preferably substantially linear.

For ease of reference, this flow direction 168 is preferably used even in areas in which no exhaust gas still exists.

The flow direction 168 may preferably be understood as a main extension direction of the burner device 112.

The heater 108 preferably operates as follows:

Fuel and oxidizer, in particular natural gas and air, are supplied to the feed distributor chamber 130 via the gas feed 116.

The mixture of fuel and oxidizer then flows through the separating plate 134, which acts as a non-return valve 124, in the non-return space 132. - -

Due to the increased flow velocity in the region of the passage openings 136 of the separating plate 134, an undesired flashback into the feed distributor space 130 is preferably effectively prevented.

From the flashback chamber 132, the mixture of fuel and oxidizer flows through the flow plate 140 and through the recess 144 in the flame-limiting plate 142 into the combustion chamber 138.

In the combustion chamber 138, the mixture of fuel and oxidizer is chemically reacted, in particular to form a flame.

An initial ignition is preferably carried out by means of the igniter 146th

The flame generated during the combustion of the fuel anchors in particular on or on the flow plate 140 in the region of the recess 144 of the flame-limiting plate 142.

In particular, this can be achieved by a uniform laminar combustion of the fuel.

The exhaust gas produced in the combustion chamber 138 is then supplied to the homogenization chamber 150 via a further separating plate 134 where it is homogenized, that is to say in particular mixed, in order to achieve a uniform gas composition and / or temperature of the exhaust gas flow (see FIG. 4). However, the separation plate 134 and the additional separate homogenization space 150 may also be dispensable (see FIG. 3), especially if the combustion in the region of the flow plate 140 and the flame-limiting plate 142 already produces sufficiently uniform exhaust gas parameters.

Via the throttle device 154, the exhaust gas flows into the exhaust gas distribution chamber 152. - -

By targeted adjustment of the throttle elements 158, in particular an exhaust gas volume flow of the exhaust gas flowing into the exhaust gas distributor chamber 152 can be adjusted.

In the exhaust gas distribution chamber 152, the exhaust gas is distributed to one or more application tubes 162 of the application device 160. The exhaust gas then flows through the application tubes 162 and finally strikes the object 102.

The heated exhaust gas discharges at least part of its heat to the region 104 of the object 102 to be heated in order to ultimately heat it to a desired temperature.

For controlling and / or regulating the entire heating device 108, a plurality of sensor elements, for example temperature sensors, flow sensors, pressure sensors, etc., may be provided.

In particular, a targeted control of the distribution valves 120 and / or a targeted adjustment of the throttle elements 158 can then be carried out in order ultimately to achieve a uniform exhaust application for uniform heating of the region 104 to be heated or a specifically locally different exhaust application for locally different heating of the region 104 to be heated of the object 102.

The burner device 112, in particular one or more burner segments 166, may, for example, have cuboidal or cylindrical spaces 130, 132, 138, 150, 152.

Preferably, however, the shape of the feed distribution space 130, the flashback space 132, the combustion space 138, the homogenization space 150 and / or the exhaust gas distribution space 152 is adapted to the shape of the area 104 of the object 102 to be heated. - -

Furthermore, the arrangement and configuration of the application tubes 162 is preferably adapted to the shape of the area 104 of the object 102 to be heated.

By at least partially or completely adapting the shape of the heating device 108 to the area 104 of the object 102 to be heated, a reliable heating of the area 104 can preferably be ensured, in particular without fear of undesired hotspots and / or cool portions of the area 104 to be heated.

Hereinafter, the heating device 108 is illustrated using the example of a planar elliptical region 104 to be heated of an object 102. Decisive here, however, is not the concrete shape in this application, but the fact that the burner device 112 and the flow device 114 are adapted to the shape of the area 104 of the object 102 to be heated.

In particular, the burner device 112 and the flow device 114 are formed following the contour of the region 104 of the object 102 to be heated.

In Fig. 5, a base portion 170 of the burner apparatus 112 is shown.

The base portion 170 comprises, for example, a substantially cuboidal base plate 172, which is provided with an elliptical recess 174.

This elliptical recess 174 forms, in particular, the supply distributor space 130 of the burner device 112.

The supply lines 122 of the gas supply 116 of the heating device 108 can preferably be connected to an underside 176 of the base plate 172. - -

Via inlet openings 178 (see FIGS. 3 and 4) in the base plate 172, the mixture of fuel and oxidizer supplied via the supply lines 122 can be supplied to the feed distributor space 130.

In the in Fig. In the embodiment of base portion 170 shown in FIG. 5, a non-segmented supply manifold space 130 is provided.

The Zuführverteilerraum 130 is thus formed continuously permeable to fluid.

A plan view of an alternative embodiment of a base portion 170 shown in FIG. 6 shows a segmented feed manifold space 130.

In this case, the supply distributor space 130 is provided with several, for example eight, partitions 180, resulting in a plurality, in particular eight, supply distributor space segments 182 of the supply distributor space 130.

Each feed distributor space segment 182 is preferably assigned a separate inlet opening 178, so that a desired gas volume flow can be fed to each feed distributor space segment 182 independently of the further feed distributor space segments 182 via the distributor valves 120 of the gas feed system 116.

FIG. 7 shows an example of a dividing wall 180, which can be fixed to the base section 170, for example, by means of two lateral projections or holding elements 184.

For this purpose, the lateral projections or holding elements 184 can preferably be received in correspondingly formed recesses 185 in the base section 170, in particular screwed.

The partitions 180 are thus selectively mountable or removable from the base portion 170. - -

Fig. 8 shows a partition plate 134 which is provided with a plurality of passage openings 136.

The passage openings 136 are preferably arranged contour-related with respect to the region 104 of the object 102 to be heated in the separating plate 134. In particular, the passage openings 136 are thus arranged in an elliptical ring shape.

The separating plate 134 can in particular be arranged directly on the base section 170 of the main body 128 of the burner device 112.

As Fig. 9 can be seen, for example, provided with an elliptical passage opening 186 spacer plate 188 of the body 128 are arranged on the partition plate 134.

The spacer plate 188 is also preferably provided with partitions 180 to divide the flashback chamber 132 formed by the spacer plate 188 into a plurality of flashback space segments 190.

The dividing walls 180 are arranged along the flow direction 168 on the partitions 180 in the base portion 170, so that the check space segments 190 are fittingly connected to the Zuführverteilerraum- segments 182.

As the Fig. 10 and 11, the spacing plate 188 is followed, in particular, by the flow plate 140 and, subsequently, by the flame limiting plate 142, which has the recess 144 already described above.

The recess 144 is likewise contour-shaped with respect to the region 104 of the object 102 to be heated. Thus, in particular, an elliptical recess 144 is provided in the flame-limiting plate 142. - -

A combustion chamber plate 192, which has a contour-following, in particular elliptical, passage opening 186, preferably follows in FIG

Flow direction 168 on the flame-limiting plate 142nd

Preferably, the combustion chamber plate 192 is provided with partitions 180, which are arranged in particular matching the partitions 180 of the spacer plate 188 and the base plate 172.

By means of the partition walls 180 in the combustion chamber plate 192, in particular a plurality of combustion chamber segments 194 are formed, which adjoin the check-recoil space segments 190 particularly suitably.

The combustion chamber plate 192 is further provided with passages 196 for receiving the igniters 146.

Through the passages 196, the individual combustion chamber segments 194 are accessible from outside of the main body 128, in particular in a direction perpendicular to the flow direction 168, so that in particular a respective spark plug 148 can protrude from outside the main body 128 into the respective combustion chamber segment 194.

The combustion chamber plate 192 can be provided with a partition plate 134 according to FIG. 8, in particular in order to separate the combustion chamber 138 from the homogenization chamber 150 (see in particular FIG. 4).

However, provision may also be made for one or more spacer plates 188 according to FIG. 9 to follow the combustion chamber plate 192 in order ultimately to expand the combustion chamber 138 in the flow direction 168 or to create an additional, in particular not separate, homogenization chamber 150. - -

The homogenizing chamber 150 or optionally also directly the combustion chamber 138 is covered by means of the throttle plate 156 of the throttle device 154 shown in FIG. 13 (see FIG. 15).

Throttle plate 156 preferably includes a plurality of tapped holes 198 (see FIG. 14), which are particularly elliptical and contour-following with respect to region 104 of object 102 to be heated.

The threaded holes 198 are arranged in particular in an annular closed row.

On both sides of the row of threaded holes 198, a series of passage openings 136 is provided in each case.

The passage openings 136 are in this case arranged in particular in such a way relative to the threaded bores 198 that throttling elements 158 introduced into the threaded bores 198, depending on the position and orientation of the respective throttle element 158, variably release or close the passage openings 136.

By means of the throttle elements 158 is thus in particular a free flow cross-section of the throttle plate 156 adjustable.

FIG. 16 shows the application device 160, which comprises application tubes 162 which are arranged following the contour, elliptically arranged, in particular in an annularly closed row.

The application tubes 162 are fixed to the application plate 164 and in the illustrated embodiment of the application device 160 are all substantially identical. - -

By means of the in Figs. In particular, a planar elliptical edge region 200 of an oval plastic component 202 can be heated to 5 to 16 component-wise illustrated heating device 108 (see FIG. 17).

As can be seen in particular from an overall view of FIG. 1 to 17, the contiguous configuration of the entire burner apparatus 112 and the entire flow apparatus 114 can realize a very uniform and locally adaptable gas feed from the feed distributor space 130 to the area 104 of the object 102 to be heated.

While in the illustrated elliptical configuration of the area 104 of the object 102 to be heated, such a uniform feed does not appear to be necessary due to the simple geometry, the contour-following configuration is highly recommended for more complicated geometries of the area 104 of the object 102 to be heated.

Due to the chosen construction of the heating device 108, even in the case of a three-dimensionally contoured region 104 of the object 102 to be heated uniform heating can be ensured, for example by adjusting the segmentation of the spaces 130, 132, 138, 150, 152. Further, the gas flow in the supply manifold space segments 182, check space segments 190, combustion chamber segments 194, homogenizer space segments 204, and / or exhaust manifold space segments 206 may be selectively varied to include different portions of the region 104 of the object 102 to be heated with the heat required to supply.

From Fig. 18 also shows that the configuration and arrangement of the application tubes 162 can be varied in order to realize an optimum adaptation of the heating device 108 to the region 104 of the object 102 to be heated. - -

In particular, this can be provided for different Lich long 16 ubation of application pipes 162.

In addition, it can be provided that the application tubes are net 162 in different ^¬ l cozy intervals Ai, A ₂ from one another angeord, depending on whether th e adjacent application tubes 162 of exposing a rather inclined portion to be heated area 104 or a rather straight portion serve the area to be heated 104.

In this way, an inclined surface to be heated region 104 of the object can in particular be reliably supplied with 102 dersel ben amount of heat per Flächenein ^¬ standardized as flat surfaces, that is, cozy Wesentl sen Krecht to the flow direction of the exhaust gas 168 aligned surfaces.

Dadu rch that the burner device 112 aufg around the segmented design at least partially divided into u nabhängig units (Brennerseg elements 166) is shared, an optimal adaptation of the heater 108 to the area to be heated 104 of the object 102 ermögl icht.

It may be provided that the Bren nervorrichtung 112 in vol lense independent operable ig each operable Brennerseg elements 166 is divided, so that, for example, ment 166 for each Brennerseg also a separate ignition device 146 is provided.

However, it can also be provided that for example by local recesses in the partitions 180 in particular the combustion chamber segments 194 are directly oberhal b the Flammenbeg renzu ngsplatte 142 fluidly mitei ^¬ connected to each other, so that in a Brennraumseg ment 194 by means of an igniter 146 generated flame also in the other Brennraumseg elements 194 can propagate. - -

For example, here a recess can be provided over a height of about 5 mm in the partitions 180 between the combustion chamber segments 194.

In the illustrated and described embodiments of heating devices 108, all the spaces 130, 132, 138, 150, 152 are arranged with respect to their main directions of extension in planes oriented perpendicular to the flow direction 168 of the exhaust gas.

However, in the case of three-dimensionally contoured areas 104 of the object 102 to be heated, it can also be provided that one or more of said spaces 130, 132, 138, 150, 152 also follow the contour in a direction parallel to the flow direction 168 with respect to the component 104 to be heated Object 102 are formed.

In particular, it can be provided that a firing surface predetermined by the flow plate 140 and / or the flame-limiting plate 142 also follows a geometry of the region 104 of the object 102 to be heated in the flow direction 168.

In further embodiments, not shown, of a heating device 108, preferably one or more of the features described above may be combined as desired.

For example, it can be provided that only the feed distributor space 130 is segmented, while in particular the combustion chamber 138 is formed non-segmented. - -

LIST OF REFERENCE NUMBERS

100 heating system

102 object

104 area to be heated

106 welding device

108 heating device

110 transverse center plane

112 burner device

114 flow device

116 gas supply

118 mixing device

120 distributor valve

122 supply line

124 Anti-kickback

126 flashback cartridge

128 basic body

130 feed distributor space

132 kickback room

134 separating plate

136 passage opening

138 combustion chamber

140 flow plate

142 flame limiting plate

144 recess

146 ignition device

148 spark plug

150 homogenization room

152 waste gas distribution room

154 throttle device

156 throttle plate

158 throttle element

160 application device - -

162 application tube

164 Application plate

166 burner segment

168 Flow direction

170 base section

172 basic plate

174 deepening

176 Underground

178 inlet opening

180 partition

182 feeder manifold space segment

184 holding element

185 recess

186 el liptic passage opening 188 spacer plate

190 kickback room segment

192 firebox

194 combustion chamber segment

196 You know

198 threaded hole

200 edge area

202 plastic component

204 homogenization segment

206 exhaust manifold space segment

Ai distance

A ₂ distance

I inner diameter

L length

Claims

claims

A heating device (108) for heating an object (102), the heating device (108) comprising:

a burner device (112) comprising a combustion chamber (138), wherein exhaust gas heated by chemical reaction of fuel and oxidizer can be provided in the combustion chamber (138);

a flow device (114), by means of which the exhaust gas can be fed to a region (104) of the object (102) to be heated.

Second heating device (108) according to claim 1, characterized in that the combustion chamber (138), a check-back space (132), a

Zuführverteilerraum (130), a homogenization chamber (150) and / or an exhaust gas distribution chamber (152) of the heating device (108) are segmented formed.

3. heating device (108) according to claim 2, characterized in that the combustion chamber (138), a flashback chamber (132), a Zuführverteilerraum (130), a homogenization chamber (150) and / or an exhaust gas distribution chamber (152) of the heating device (108) are segmented with respect to a flow direction (168) of the exhaust gas in a circumferential direction.

4. Heating device (108) according to one of claims 1 to 3, characterized

characterized in that the combustion chamber (138) is formed segmented and that each combustion chamber segment (194) of the combustion chamber (138) is associated with an ignition device (146) of the heating device (108) for igniting a combustible mixture of fuel and oxidizer.

5. Heating device (108) according to any one of claims 1 to 4, characterized in that the combustion chamber (138) fluidly effective directly interconnected combustion chamber segments (194), wherein due to the fluid effective connection arranged in a combustion chamber segment (194) flame on at least a further combustion chamber segment (194), in particular to all other combustion chamber segments (194), can propagate.

6. Heating device (108) according to one of claims 1 to 5, characterized

in that a feed distributor space (130) of the heating device (108), a non-return space (132), the combustion space (138), a homogenization space (150) of the heating device (108) and / or an exhaust distribution space (152) of the heating device (108) are common arranged in a base body (128) of the heating device (108) and / or are formed.

7. heating device (108) according to claim 6, characterized in that the base body (128) has a layer structure and in particular a plurality of recesses (174) and / or with openings (186) provided plates, wherein the recesses (174) and / or the passage openings (186), the feed distributor chamber (130) of the heating device (108), the flashback chamber (132) of the heating device (108), the combustion chamber (138), the homogenization chamber (150) of the heating device (108) and / or the exhaust gas distributor chamber ( 152) of the heater (108).

8. Heating device (108) according to one of claims 1 to 7, characterized

characterized in that the combustion chamber (138) and an exhaust gas distribution chamber (152) of the heating device (108) are separated from one another by means of a throttle device (154).

9. heating device (108) according to one of claims 1 to 8, characterized in that the heating device (108) comprises a throttle device (154) for varying an exhaust gas flow rate of the heated region (104) of the object (102) to be supplied to the exhaust gas.

10. Heating device (108) according to claim 9, characterized in that the throttle device (154) comprises one or more throttle elements (158) which between the combustion chamber (138) or a homogenization chamber (150) of the heating device (108) on the one hand and an exhaust manifold (152) of the heating device (108) are arranged on the other hand.

11. Heating device (108) according to one of claims 1 to 10, characterized in that a shape of the combustion chamber (138) at least approximately corresponds to a shape of the area to be heated (104) of the object (102).

12. Heating device (108) according to one of claims 1 to 11, characterized in that the burner device (112) comprises a Zuführverteilerraum (130) whose shape corresponds at least approximately to a shape of the region to be heated (104) of the object (102).

13. Heating device (108) according to one of claims 1 to 12, characterized in that the burner device (112) comprises an exhaust gas distribution chamber (152) whose shape corresponds at least approximately to a shape of the area to be heated (104) of the object (102).

14. A heating device (108) according to claim 1, wherein a cross-sectional shape of the combustion chamber (138) perpendicular to a flow direction (168) of the exhaust gas corresponds at least in sections and at least approximately to a shape which the region to be heated ( 104) of the object (102) when the area (104) of the object (102) to be heated is longitudinal the flow direction (168) is projected in a direction perpendicular to the flow direction (168) extending the exhaust plane.

15. Heating device (108) according to claim 1, characterized in that the burner device (112) comprises a feed distributor space (130) whose cross-sectional shape taken perpendicular to a flow direction (168) of the waste gas corresponds at least in sections and at least approximately to a shape which the region (104) of the object (102) to be heated has, when the region (104) of the object (102) to be heated is projected along the flow direction (168) into a plane perpendicular to the flow direction (168) of the exhaust gas.

16. Heating device (108) according to claim 1, characterized in that the burner device (112) comprises an exhaust gas distribution chamber (152) whose cross-sectional shape taken perpendicular to a flow direction (168) of the exhaust gas corresponds at least in sections and at least approximately to a shape which the region (104) of the object (102) to be heated has, when the region (104) of the object (102) to be heated is projected along the flow direction (168) into a plane perpendicular to the flow direction (168) of the exhaust gas.

17. A heating device (108) according to any one of claims 1 to 16, characterized in that a Zuführverteilerraum (130), a non-return space (132), the combustion chamber (138), a homogenization chamber (150) and / or an exhaust gas distribution chamber (152) of Heater (108) along the flow direction (168) of the exhaust gas adjacent to each other portions of a hollow cylinder.

18. Heating device (108) according to claim 17, characterized in that a base surface of the hollow cylinder has a shape which corresponds at least approximately to a shape that is to be heated Area (104) of the object (102), when the area to be heated (104) of the object (102) along the flow direction (168) is projected in a plane perpendicular to the flow direction (168) of the exhaust gas plane.

19. A heating device (108) according to any one of claims 1 to 18, characterized in that a Zuführverteilerraum (130) of the heating device (108) and the combustion chamber (138) by means of a non-return valve (124) to prevent a flashback, in particular by means of a flashback space ( 132), and / or by means of a flow plate (140) and / or by means of a flame-limiting plate (142) are separated from each other.

20. Heating device (108) according to one of claims 1 to 19, characterized in that the area to be heated (104) of the object (102), a non-return space (132), the combustion chamber (138), a

Zuführverteilerraum (130), a homogenization chamber (150) and / or an exhaust gas distribution chamber (152) are formed annularly closed.

21. Heating device (108) according to one of claims 1 to 20, characterized in that the heating device (108) comprises an application device (160) for applying the exhaust gas to the area to be heated (104) of the object (102), wherein the application device (160) comprises a plurality of application tubes (162) which, in particular, are juxtaposed next to one another following a shape of the region (104) of the object (102) to be heated.

22, heating device (108) according to one of claims 1 to 21, characterized in that the application tubes (162) to a three-dimensional shape of the area to be heated (104) of the object (102) adapted lengths (L).

23. Heating device (108) according to any one of claims 1 to 22, characterized in that the application tubes (162) are arranged at different distances (Ai, A ₂ ) from each other, wherein the distances (Ai, A ₂ ) are smaller when the Exhaust gas applied by means of the respective application tubes (162) impinges on the region (104) of the object (102) to be heated at a more acute angle, and wherein the distances (Ai, A ₂ ) are greater when this is achieved by means of the respective application tubes (162). Applied exhaust gas impinges at a blunt angle on the region to be heated (104) of the object (102).

24. Heating device (108) according to one of claims 1 to 23, characterized in that the heating device (108) comprises an application device (160) for applying the exhaust gas to the area to be heated (104) of the object (102), wherein the application device (160) comprises a plurality of application tubes (162) which are fixed to a common application plate (164).

25. Heating device (108) according to claim 24, characterized in that the application plate (164) delimits the exhaust gas distribution chamber (152) in the flow direction (168) of the exhaust gas.

26. Heating device (108) according to one of claims 1 to 25, characterized

in that the heating device (108) comprises an application device (160) for applying the exhaust gas to the region (104) of the object (102) to be heated, wherein the application device (160) comprises a plurality of application tubes (162), and

in that the heating device (108) comprises a throttle device (154) for varying an exhaust gas volume flow of the exhaust gas to be heated to the region (104) of the object (102) to be heated, wherein the throttle device (154) comprises a plurality of throttle elements (158), one or more Throttle elements (158) are each associated with one or more application tubes (162).

27. Heating system (100), comprising one, two or more heating devices (108) according to one of claims 1 to 26.

28. Heating system (100) according to claim 27, characterized in that two heating devices (108) are mirror-symmetrical to one another with respect to a plane perpendicular to the flow direction (168) of the exhaust gas oriented plane, in particular a transverse center plane (110) of the heating system (100), formed and / or are arranged.

A heating method of heating an object (102), wherein fuel and oxidizer are supplied to a heater (108) according to any one of claims 1 to 28, wherein exhaust gas is generated in the combustion chamber (138) of the burner device (112) via the flow device (114) is supplied to a region (104) of the object (102) to be heated.

30. Heating method according to claim 29, characterized in that a

Mixture of fuel and oxidizer is supplied to a plurality burner segments (166) of the burner device (112) and that adapted to a shape and / or contour of the area to be heated (104) of the object (102) by means of the burner segments (166), the mixture of fuel and Oxidizer is converted into exhaust gas and the region to be heated (104) of the object (102) is supplied.

31. Heating method according to one of claims 29 or 30, characterized in that a plurality of burner segments (166) of the burner device (112) is supplied to a mixture of fuel and oxidizer with different volume flows.

32. Heating method according to one of claims 29 to 31, characterized

characterized in that exhaust gas streams with different volumetric flow rates are produced by means of a plurality of burner segments (166) of the burner device (112). be generated and that these exhaust gas streams a plurality of application tubes (162) of an application device (160) of the heating device (108) supplied and applied by means of these application tubes (162) on the area to be heated (104) of the object (102).