DE102017223710A1 - Mounting kit with multi-stream burner device and at least two spacer elements and method, computer program product and use - Google Patents

Abstract

The invention relates to an assembly kit (1) with a multi-stream burner device (10) configured to provide a mixture of at least two media streams and adapted to set at least one parameter (P1, P2, P3, P4, Pn) from the group: composition of the mixture, exit velocity the respective media stream from the multi-stream burner device, volume flow of the respective media stream; wherein the multi-stream burner device comprises at least two gas supply sections (11, 12) which are positionable relative to each other and which define at least one gas passage (15) variably adjustable in width or in cross-section (A) and at least two mounting sections (11.1, 12.1) to which the Gaszuführabschnitte are positioned relative to each other and the front side are sealable, wherein the mounting kit comprises: at least two spacer elements (19, 19a, 19b) of different thickness (x19) with sealing function respectively configured for sealing the gas supply sections (11, 12) to each other at the front, and a table (3 ) for a correlation of the respective spacer element or its thickness with at least one of the parameters. Furthermore, the invention relates to a method for mounting or setting a corresponding multi-flow burner device.

Description

The invention relates to a mounting kit with multi-stream burner device and at least two spacer elements and a corresponding method for mounting or adjusting the multi-stream burner device. In particular, the invention relates to a device and a method according to the preamble of the respective claim.

In processes of partial oxidation (POX) in particular of fuels, in many cases different media / fluids / gases must be supplied, which are to form a mixture, whereby an influence on the composition of the mixture and / or on the volume flow should be possible. For the burners used, it is often required that the capacity or the output power be adjustable in as wide a range as possible. The burners used then have, for example, two or three gas feeds, in each case for a gas mixture or a gas / medium / fluid, which feeds are brought together in particular at the burner tip or open there. Such burners are referred to herein as a multi-stream burner.

In POX processes, different parameters must be taken into account, in particular parameters specified by the burner. For example, the speed with which the media / fluids / gases exit the burner into the respective reactor has a major influence on the flow pattern and flame formation and thus also on the POX process. An adjustment of the burner should therefore e.g. insufficient mixing of O2-containing medium (eg air, pure oxygen O2, O2-enriched air) with the fuel, or flame extinction due to high flow rates ("blow out"), or insufficient atomization especially when using liquid fuels ,

It is therefore desirable to have a burner arrangement in which an adjustment of as many parameters as possible is optionally possible without making the structure of the arrangement too complex.

Multi-stream burners can be adjusted, for example, by varying the cross-section and thus the passage of a respective feed. Multi-stream burners can be provided in particular as a pipe in a pipe arrangement, with one or more gas passage columns, in particular annular gaps. The cross section or an annular gap can then be adjusted by displacing one of the tubes axially relative to the other tube (s). In this manner of adjustment can be spoken by Spaltjustage, ie by adjusting the gap width, in particular to adjust in particular the exit velocity of a respective gas or pretend as accurately as possible.

Usually, gases are metered. In various POX processes, however, not only gaseous, but also liquid or dust-like fuels are supplied. Strictly speaking, therefore, one would have to speak of optionally particle-laden fluids. In the following, the term gas or gas mixture also denotes a burner fluid, which optionally may also have liquid and / or solid constituents, but can be treated and fed like a gas.

Difficulties with current burner arrangements, in particular with one or more adjustable gaps / annular gaps, are to provide a simple, robust construction which can also be adjusted in a simple and robust, but nevertheless as exact as possible manner. Current challenges in burner design can also be described as follows.

Even with proven burners, readjustments may be required, especially when used under novel conditions of use, e.g. with other fuels, with changed size ratios (up-scaling or down-scaling), or with changed reactor pressure, or other power / load range (in particular partial load range or overload range). In all these cases, it is helpful if, in particular, it is also possible to influence the exit velocity of one or more media / fluids / gases, in particular without having to change the mass flows, since the mass flows are often predetermined by the desired power and stoichiometry.

In prior art burners an adjustment is often made possible by the fact that individual components of the burner can be positioned in the axial direction relative to each other.

The publication EP 0 095 103 A1 describes a three-stream burner with a tube in a pipe arrangement with variable gap width at the outlet at the top of the burner, wherein the gap width means a comparatively complex apparatus comprising a servomotor, a threaded nut and a worm wheel is adjustable. A sealing of the respective supplied gas stream with respect to the environment by means of sealing rings arranged in grooves. This burner is designed for operation at comparatively high pressure (in the range of 40 bar), with appropriate pressure-tightness requirements. The sealing rings are provided redundantly several times and fixed in the annular grooves.

The publication EP 0 108 503 A2 describes a burner with a tube in a tube arrangement with a plurality of annular gaps, wherein the width of at least one annular gap can be adjusted by an axial relative movement.

The publication DE 1 152 783 describes a burner with axially displaceably mounted in the longitudinal direction central nozzle.

The respective displacement mechanism requires a certain amount of design and equipment and not least also carries the risk that a motor drive or a corresponding control is prone to error or fails. Therefore, there are already alternative, more robust, simpler arrangements.

The publication EP 0 127 273 A2 describes a burner assembly with a centric outlet and with three annular gaps arranged concentrically around it, wherein the gas composition can be adjusted by varying the volume flows through at least two of the annular gaps. According to this publication, variability can be achieved in a comparatively simple manner by providing two of the annular gaps redundantly for the same gas mixture. A relative movement between two pipe sections is not required. A seal of relatively moving parts need not be done. However, this arrangement is not adjustable in a particularly flexible manner, in particular not with respect to the exit speeds. Furthermore, additional equipment can be required in the form of an additional annular gap or an additional gas control system.

The prior art arrangements, with or without relative axial movement, are quite complex in construction or can not be set exactly enough in a simple manner according to specific operating conditions.

The object of the invention is to provide a device and a method with the features described above are available, which in a simple, cost-effective and safe way, a variation of the operating state of burners can be realized.

This object is achieved by an assembly kit comprising a multi-stream burner device adapted to provide a mixture of at least two media streams for POX processes each with at least one medium from the group: gas, gas mixture, gaseous or liquid or pulverulent fuel; in particular for oxidation processes in synthesis gas production, wherein the multi-stream burner device is adapted to set at least one parameter from the group: composition of the mixture, exit velocity of the respective media stream from the multi-stream burner device, volume flow of the respective media stream; wherein the multi-stream burner device comprises at least two gas supply sections that are positionable relative to one another and that define at least one width-wise or cross-sectionally variably adjustable gas passage for the mixture, wherein the multi-stream burner device has at least two mounting sections at which the gas supply sections are positionable relative to one another, in particular in the longitudinal direction (FIG. x ), and the front side are sealable, wherein the mounting kit further comprises: at least two spacer elements of different thickness with sealing function respectively configured for sealing the Gaszuführabschnitte to each other at the front, and further comprises a table for a correlation of the respective spacer element or its thickness with at least one of the parameters, in particular with the exit velocity and / or with an additional parameter relating to a gas passage (gas passage area) or a gap width at an outlet end (burner tip) of the multi-stream burner device. This provides a technical teaching for setting a desired parameter, in particular the exit velocity at a given volume flow, in a simple manner, and also provides related components.

The group of parameters may further include as an additional parameter: gap width change, gap surface or gap surface change, exit velocity of the respective media flow as a function of the load state, in particular at full load. Volume flows can also be regulated outside the burner by control valves.

In particular, the kit according to the invention also allows an axial displacement of concentrically arranged tubes of a burner relative to each other in a simple and robust manner, in particular without complex specific production engineering or design requirements for burner parts.

The two or more tubes from which a particular concentrically constructed burner can be usually connected by flanges. Between the two flanges, a sealing ring ensures tightness. Depending on the requirements, different spacer elements, preferably in the form of ring-joint seals, can be used according to the invention.

According to the invention can be achieved by using different thickness spacers or seals axial displacement predefined extent of at least two interconnected by the flanges pipes. The use of a thicker spacer element can cause a displacement of an inner tube in such a way that is accompanied by a broadening of an outlet ring gap. In this case, a plurality of spacer elements or sealing rings can be used in arrangement one above the other.

These measures can be applied to both a 2-stream burner and a 3-stream burner or a burner with additional ring channels.

The inventive manner of the annular gap adjustment has the particular advantage of a very low expenditure on equipment and the elimination of seals on moving parts.

A longitudinal direction is to be understood as a direction in which the gas supply sections can be positioned relative to one another and in which the gas supply sections essentially extend. The longitudinal direction may coincide with a position line of the respective Gaszuführabschnittes.

As the mounting portion, e.g. a radially extending standard flange can be used, which can optionally be reworked, in particular a rotationally symmetrical flange with bushings for fasteners such. Screws.

As a medium is intended to be intended for the POX process gas or a mixture of several gases, fluids or blended (dusty) solids. Each media stream may e.g. consist of: free oxygen-containing gas (pure O2 or air or a mixture of both), fuel (gaseous and / or liquid and / or dusty), and optionally moderator gas (e.g., steam, CO2 or N2).

The oxidation may be a partial or complete oxidation.

In the following, the terminology "gas" is preferably used, e.g. for the terms 'gas passage' and 'gas supply section'. Nonetheless, this terminology not only concerns gases, but also, in general, the media and media streams described here.

Of the Gaszuführabschnitten is at least one relatively displaceable to the other, wherein the other can be fixedly mounted without necessarily be displaced.

According to one embodiment, the table specifies a correlation of the respective spacer element or its thickness with the exit velocity, for example with respect to a volume flow / flow rate predetermined by the process (e.g., full load flow), in particular using a manually or automated computer assisted readable matrix. As a result, the adjustment is particularly simple and manual interpretation also directly unambiguous understandable.

According to one embodiment, the table provides a correlation of the exit velocity with the additional parameter regarding the gas passage or the gap width at the outlet end. As a result, process parameters can also be correlated directly with the relative position. The adjustment is possible in a particularly direct manner, in particular by reference to a respective POX process.

According to one embodiment, the table specifies a correlation of all parameters of the group. As a result, the adjustment can take place in a particularly direct, simple manner with regard to a multiplicity of process parameters. The correlation can optionally also with regard to new, additional spacer elements which have not yet been tabulated, but are to be added to the assembly kit, for example in order to expand the field of application or to allow process variants.

The correlation can in particular be based on the following relationships: Parameters P1, P2, P3, P4, ..., Pn x19 [mm] d1 [mm] □ d [mm] A [mm2] □ A [%] v [m / s] α [°] Q (t) [m3 / h] 6 7 1500 180 30 1000 10 9 +2 2000 -25 130 30 1000 11 9.5 +0.5 2100 -5 125 30 1000 12 10 +0.5 2200 -5 120 30 1000 13 10.5 +0.5 2350 -5 115 30 1000 14 11 +0.5 2500 -5 110 30 1000 x19 Thickness of the spacer element d1 Width of the gas passage □ d Variation of the width or thickness A Cross-sectional area □ A Variation of the area v exit speed α Angle or inclination of the gas passage Q (t) flow

The diameter di the corresponding Gaszuführabschnittes at the gas outlet is eg in the range of 55 to 65mm. The correlation can also be for angles α be specified by eg 20 °, 25 ° or 40 °. The correlation is based on a variation of x19.

The correlation may in particular be based on at least one of the following three factors, namely cleavage area factor, load factor, speed factor, calculated here by way of example for a thickness of the spacer element in the range from 14 to 24 mm: seal height Gap area factor load factor speed factor x19 [mm] fA [%] fload [%] fv [%] mm % % % 14 47.6 47.6 209.9 16 64.6 64.6 154.9 18 82 82 121.9 19 90.9 90.9 110 20 100 100 100 21 109.2 109.2 91.6 22 118.5 118.5 84.4 24 137.5 137.5 72.7

• Innendurchmesser Gaszuführabschnitt di = 50mm;
• Winkel Gaszuführabschnitt α = 30°;
• Dicke Distanzelement x19 = 20mm;
• Spaltbreite d1 = 6mm;

For example, you can define as input variables:

• Inner diameter gas feed section di = 50mm;
• Angle gas supply section α = 30 °;
• Thick spacer element x19 = 20mm;
• gap width d1 = 6mm;

From the table it can be seen that for a thickness of the spacer element of 20mm at a burner load of 100%, the design speed is at the exit of the annular gap, which is equivalent to a speed factor of 100%.

The cleavage area factor characterizes this fa a relative change of the gap surface as a function of a thickness variation of the spacer element.
The load factor (at constant speed) fLast indicates a relative change in the output of the burner as a function of a thickness variation of the spacer element.
The speed factor (at constant load) fv indicates a relative change in the outflow velocity as a function of a thickness variation of the spacer element.

$$\text{mit }\square \times 19=x19-x{19}_{\text{wahl}}$$

$$\text{fLast}=\text{fA}$$

$$\text{fv}=1/\text{fA}$$

The correlation is preferred by the following equation for determining a cleavage area factor fa given: $$\begin{array}{l}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right)\end{array}$$

$$\text{With}\square \times 19=x19-x{19}_{\text{choice}}$$

$$\text{flast}=\text{fa}$$

$$\text{fv}=1/\text{fa}$$

In this case, x19 _{choice is} the thickness of the newly selected spacer element, which is used for setting as a replacement of a previously mounted spacer element.

For a conceivable special case that conical sections of the respective gas supply section are not parallel to one another, the formula can be applied differently in two exemplary cases. For example, an angle β can be defined for the inclination of the inner conical surface (gas supply portion inside) with respect to the center axis of the burner, and an angle γ for the inclination of the outer conical surface (further outward gas supply portion) with respect to the center axis of the burner. Case 1: If the tip of the inner conical surface in the flow direction in front of a straight line which is orthogonal to a straight line with the mean inclination of the flow channel and through the tip of the outer conical surface, the above formula with α = γ to use.

Case 2: If the tip of the inner conical surface in the flow direction behind the straight line, which is orthogonal to a straight line with the mean inclination of the flow channel and through the tip of the outer conical surface, the above formula with α = β to use.

According to one embodiment, at least one of the spacer elements is a sealing ring for gas-tight sealing of the corresponding Gaszuführabschnittes to the environment, in particular up to a pressure difference of 40 to 80bar (pressure range especially for POX processes) or even up to 100bar, in particular a sealing ring made of metal. This enables the functional linking of sealing and relative positioning in a simple way.

According to one embodiment, at least one of the spacer elements is a sealing ring with two opposing radially extending sealing surfaces or end-side abutment sections. As a result, a comparatively high position accuracy can be ensured.

According to one exemplary embodiment, at least one end-side abutment section with a sealing surface for receiving or arranging the spacer element is formed on the respective mounting section. As a result, the assembly can be simplified and a comparatively high position accuracy can be ensured.

According to one embodiment, at least one of the spacer elements is a sealing ring in the form of a ring joint seal. As a result, with satisfactory position accuracy, a good sealing effect can be achieved. It has been shown that the double functionality "relative positioning + sealing" can be ensured in a very reliable manner, in particular by means of a ring-joint seal. The design as a ring-joint seal also provides the advantage that a variation of at least one of the parameters in a wide range is possible, especially with good accuracy.

As a ring-joint seal is to be understood a ring-like sealing element which can achieve a sealing effect, for example by pressing in a corresponding form-fitting contour, not least by a combination of positive and non-positive, in particular in conjunction with a wedge effect. In particular, the ring-joint seal has a stretched, elongated rectangular cross section with rounded and / or chamfered corners. Optionally, the cross-sectional geometry may be octagonal. Optionally, the cross-sectional contour may also be oval, at least in sections over the circumference. In contrast to flat gaskets, ring joint gaskets of comparatively large thickness (up to the range of cm) can be provided with comparatively large thickness variations of individual ring joint gaskets of the kit, for example in the range of 5 to 10 mm.

According to one embodiment, at least two of the gas supply sections taper towards the outlet end, in particular concentrically and coaxially with each other, in particular at an angle to the central longitudinal axis of the multi-flow burner device in the range of 25 to 45 °. This provides a good sensitivity of a variation in the cross-sectional area of the gas passage depending on a length variation of the longitudinal position of the respective gas supply portion. The angle can optionally also be greater than 45 °, in particular to specify a certain inflow direction, or to effect a certain type of mixing. The larger the angle, the stronger the effect of relative axial displacement.

The length of the conical section in the x-direction may be selected with regard to a particular application, in particular with respect to the diameter of the gas supply sections. The conical length is for example at least five times the exit gap width, in particular also with regard to an optimization of the airfoil.

According to one embodiment, the mounting portions extend radially, in particular orthogonal to the longitudinal direction, wherein at the respective mounting portion at least one radially oriented, front-side abutment portion for stationary mounting of the respective spacer element is formed. As a result, the assembly can be simplified and the position accuracy can be increased.

According to one embodiment, at least one of the abutment sections has a form-fitting contour, in particular in the form of a groove, which form-fitting contour is set up for at least partially receiving the respective spacer element. This allows positioning of the spacer element and optionally also a holder for the spacer element at a predefined (radial) position, in particular at a precisely predetermined location, in particular at a location with a contact surface optimized for a sealing function.

The form-fitting contour or groove can taper inwardly, with opposite conical sealing surfaces (bevelled side walls or bevelled lateral flanks, in particular geometrically corresponding to lateral flanks of the spacer element). This provides a good sealing effect. Optionally, the form-fitting contour or groove can also have an end-side contact pressure and sealing surface, optionally also in combination with conical sealing surfaces. An end-side contact surface can ensure a high positional accuracy, especially with comparatively flat ring seals. In particular, the spacer elements may comprise or be formed by so-called ring-joint seals. The cross-sectional geometry of the form-fitting contour and the cross-sectional geometry of the respective spacer element can be matched to one another. The cross-sectional geometry of the form-fitting contour can be formed as a negative shape of the spacer element.

According to one embodiment, at least one of the abutment sections has a form-fitting contour, which extends in a radial plane, in particular in a rotationally symmetrical configuration. As a result, the sealing effect can be transmitted particularly homogeneously.

According to one embodiment, the respective mounting portion or at least one / the end-side abutment portion is rotationally symmetrical. According to one embodiment, at least one of the spacer elements is rotationally symmetrical. According to one exemplary embodiment, at least one of the gas supply sections and / or the outlet side end is rotationally symmetrical about a central longitudinal axis. This results in each case advantages in terms of sealing and positioning.

According to one embodiment, the respective mounting portion has at least one screw connection, in particular with fastening means or screws which can be preloaded in the longitudinal direction. This provides in each case a robust, reliable and resilient connection or coupling, which can also be set exactly, in particular with respect to the longitudinal direction.

According to one exemplary embodiment, the respective mounting section has fastening means, in particular holes, openings and / or internal threads, which fastening means are arranged rotationally symmetrical about one or more end abutment sections for stationary mounting of the respective spacer element. As a result, a good sealing effect can be fully ensured in each case and a relative position can be set exactly.

According to one embodiment, an end-side abutment portion is further radially outwardly spaced in a radial position corresponding to the radial position of an inner shoulder of the corresponding gas supply portion or at most 25% of the inner diameter of the gas supply portion thereof, more preferably at most 10%. This also ensures a high accuracy in adjusting the gap width. Any stresses or deformations in the mounting section or flange do not or at most only have a very weak effect on the overlap length of the gas supply sections.

According to one embodiment, the respective mounting portion is accessible from a front side, which is arranged opposite to the front side, to which the respective gas supply sections or the respective spacer element can be (de-) mounted. As a result, the assembly and support is facilitated.

Hierdurch lässt sich eine direkte Korrelation einer Änderung der Dicke x19 mit einem von mehreren Betriebsmodi vorgeben. Dies erleichtert das Einstellen.According to one embodiment, the correlation is given by the following equation for determining a cleavage area factor fa given: $$\begin{array}{c}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right)\end{array}$$

This allows a direct correlation of a change in thickness x19 specify with one of several operating modes. This facilitates the adjustment.

In one embodiment, the multi-stream burner apparatus has three gas supply sections and is configured to provide a mixture of at least three media streams, the mounting kit comprising at least three or four spacer elements of different thickness. As a result, a wide variation can be made possible, especially in the case of 3-stream burners. In this case, the first gas supply section viewed from the inside can be adjustable, or the second gas supply section viewed from the inside, or both the first and the second gas supply section. In each case, at least two different spacer elements are each assigned to one of the mounting sections.

The aforementioned object is also achieved according to the invention by a method for mounting or adjusting a multi-stream burner device configured to provide a mixture of at least two media streams for POX processes, in particular using a mounting kit described above, wherein at least two gas supply sections of the multi-stream burner device that can be positioned relative to each other relative to each other be positioned by their mounting portions are mounted together, and thereby at least one variable in width or in cross-section variably adjustable gas passage is defined, wherein the relative positioning at least one parameter from the following group is set: composition of the mixture, exit velocity of the respective media stream from the Multi-stream burner device, flow rate of the respective media stream, gas passage or gap width an outlet side end of the multi-stream burner device; wherein at least one spacer element is selected from a group of at least two spacer elements of different thicknesses based on a correlation of the respective spacer element with at least one of the parameters and fixed between the mounting sections so as to define the width or cross section of the adjustable gas passageway. This results in numerous advantages mentioned above. In particular, the setting or mounting can be simplified.

Hierdurch ergeben sich zuvor genannte Vorteile.According to one embodiment, the correlation is given by the following equation for determining a cleavage area factor: $$\begin{array}{c}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right)\end{array}$$

This results in the aforementioned advantages.

Hierdurch ergeben sich zuvor genannte Vorteile.The aforementioned object is also achieved by a computer program product for determining at least one factor from the group: slit area factor fa , Load factor flast , Speed factor fv ; for adjusting a multi-flow burner device of a mounting kit described above, wherein a correlation of the respective factor is determined in dependence on a variation of the thickness of a spacer element of the mounting kit, in particular based on the following equation: $$\begin{array}{c}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right)\end{array}$$

This results in the aforementioned advantages.

insbesondere mittels eines zuvor beschriebenen Computerprogrammproduktes. Hierdurch ergeben sich zuvor genannte Vorteile.The aforementioned object is also achieved according to the invention by a method for determining at least one factor from the group: slit area factor fa , Load factor flast , Speed factor fv ; in setting a multi-stream burner device ( 10 ) of a mounting kit described above, wherein a correlation of the respective factor is determined as a function of a variation of the thickness of a spacer element of the mounting kit, in particular based on the following equation: $$\begin{array}{c}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right)\end{array}$$

in particular by means of a previously described computer program product. This results in the aforementioned advantages.

The aforementioned object is also achieved by using a mounting kit comprising: a multi-stream burner device configured to provide a mixture of at least two media streams for POX processes, further comprising at least two spacer elements of different thickness with sealing function, in particular using a mounting kit described above, for mounting the A multi-stream burner device or for setting at least one parameter from the group: Composition of at least one mixture of at least two media streams, exit velocity of a respective media stream, volume flow of the respective media stream, additional parameters relating to a gas passage or a gap width at an outlet end of the multi-stream burner device, wherein the gas passage means of the corresponding spacer element is adjusted by the spacer element frontally between two radial mounting sections of the multi-stro mbrennervorrichtung installed and fixed, in particular is braced. This results in numerous advantages mentioned above.

The aforementioned object is also achieved according to the invention by using a plurality of ring-joint seals with different, each relative to each other and with respect to at least one parameter of a sealed multi-stream burner device predefined thickness each as one of a plurality of alternative spacers for adjusting the parameter in a previously described mounting kit or in a previously described method. This results in numerous advantages mentioned above.

• 1A, 1B jeweils in einer schematischen Seitenansicht eine Mehrstrombrennervorrichtung für ein Montagekit gemäß einem Ausführungsbeispiel,
• 2 in schematischer Darstellung ein Montagekit gemäß einem Ausführungsbeispiel;
• 3 in schematischer Darstellung im Detail, im Uhrzeigersinn um 90° gedreht, einen Brennerauslass einer Mehrstrombrennervorrichtung gemäß einem Ausführungsbeispiel; und
• 4 ein weiteres Ausführungsbeispiel in einer Ansicht gemäß 1A.

Further features and advantages of the invention will become apparent from the description of at least one embodiment with reference to drawings, and from the drawings themselves. It shows

• 1A . 1B each in a schematic side view of a multi-flow burner device for a mounting kit according to an embodiment,
• 2 a schematic representation of an assembly kit according to an embodiment;
• 3 in a schematic representation in detail, rotated by 90 ° in a clockwise direction, a burner outlet of a multi-stream burner apparatus according to an embodiment; and
• 4 a further embodiment in a view according to 1A ,

For reference numbers that are not explicitly described with respect to a single figure, reference is made to the other figures.

The 1A shows a multi-stream burner device 10 with a burner tip 10.1 a first gas supply section 11 with mounting section 11.1 with end-side contact section 11:11 , in particular sealing surface, and with a second Gaszuführabschnitt 12 with mounting section 12.1 and end-side abutment section 12:11 , in particular sealing surface, and with an inlet 12.2 ,

The respective Gaszuführabschnitt 11 . 12 become media G1 . G2 . gn fed, which can mix at the burner tip.

fastener 18 , in particular biasing means in the form of screws, are as close as possible radially outward next to an inner shoulder 12.3 arranged so that a spacer element 19 with ring seal can be clamped in an exact manner between the corresponding abutment sections. The spacer element 19 is in particular designed as a so-called ring-joint seal and has a first and second end-side abutment portion 19.1 . 19.2 in particular in each case completely formed as a sealing surface for double-sided end-side sealing.

By changing the relative position in the x-direction between the Gaszuführabschnitten 11 . 12 can be a first width d1 or a second width d2 a gas passage 15 be set. The relative position can be defined by means of the spacer element. The corresponding gas supply section 11 . 12 has a flow-effective inner diameter di which remains constant during relative positioning. The multi-stream burner device 10 extends along a central longitudinal axis M ,

The 1B shows an arrangement with a wider gap d2 , The spacer element 19 was through another spacer element 19a . 19b a mounting kit 1 replaced, wherein by means of the further spacer element 19a . 19b the operating mode of the multi-stream burner device 10 is defined, in particular by the gap width with a Ausströmgeschwindigkeit or other parameters are correlated, as explained in more detail below.

To set the operating mode, the channels of the burner can be narrowed or extended at the burner mouth. This is done in some arrangements by means of stepless drives, which is mechanically very complex. In particular, in burners in which one or more annular gaps at the burner mouth are angled towards the burner axis, the adjustment can be achieved in a satisfactory manner by a displacement in the axial direction of one of the two tapered tubes. With reference to 1A . 1B increases the gap width at the lower burner ( 1B) by an axial displacement of the inner tube 11 from d1 on d2 , Effect: the flow velocity of the outer medium at the burner outlet will decrease.

The 2 shows a mounting kit 1 comprising a table 3 and the previously described multi-stream burner device 10 as well as further spacer elements 19a . 19b different thickness x19 , in each case with a ring seal or designed as a ring seal or in function as a ring seal. By means of a control device 20 , in particular comprising a logic unit, can the indicated by the double arrow correlation between the individual parameters P1 , ..., pn and the thickness x19 or the spacer element. By means of a display unit 30 , in particular comprising a logic unit, the respective context can be presented to a user. The correlation does not necessarily have to be done by calculation, but can also be shown in tabular form, without a recalculation takes place, especially in previously used, known distance elements. The mounting kit 1 However, it can be extended by further spacer elements for other applications, for which further spacer elements calculation may be useful. As exemplary parameters may be mentioned: Composition of the (gas) mixture P1 , Exit velocity v of the gas P2 , Volume flow Q (t) of the respective gas P3 , Gas passage cross-section (area) or gap width P4 , as well as other nth parameters pn ,

The 3 shows the view E 1B or off 4 rotated by 90 ° in detail, with individual parameters are described in detail.

The gas passage formed at the burner tip 15 in the form of a gap of uniform width is determined by the distance or the overlap x1 . x2 the Gaszuführabschnitte defined in the longitudinal direction. About the diameter is the area A the gas passage determinable, or by an offset □ x or by a thickness variation □ x19 longitudinal variation □ A the cross sectional area content (shown here with respect to a position line L through the gap or along the gap), or the variation □ d of the gap width. Due to the conicity corresponds to a thickness variation □ x19 not a gap width variation Dd. The smaller the taper, the weaker is the effect of the thickness variation □ x19 on the gap width d. The thickness variation □ x19 corresponds to the offset □ x because ends of the Gaszuführabschnitte can be positioned relative to each other depending on the thickness of the spacer element.

Dabei kann ein Lastfaktor fLast (bei konstanter Geschwindigkeit) definiert werden, welcher dem Spaltflächenfaktor entspricht. Der Lastfaktor gibt an, mit welcher Last der Brenner betrieben werden kann, wenn die Austrittsgeschwindigkeit bei verstelltem Spalt konstant gehalten werden soll. Dabei wird davon ausgegangen, dass sich die Durchflüsse proportional zur Last verändern, also dass bei z.B. 40% Brennerlast auch 40% der O2-Menge, die bei Normallast (=100%) gefahren wird, auf den Brenner gegeben wird. Üblicherweise wird bei Brennern oder Reaktoren von „Normallast“ (100% Last) oder „Teillast“ (< 100% Last) gesprochen. Der Lastfaktor kann daher die Bezugsgrundlage der Berechnung klarer verdeutlichen.In particular, a correlation may also be based on the following equation for determining a cleavage area factor fa respectively: $$\begin{array}{c}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right)\end{array}$$

This can be a load factor flast (at constant speed), which corresponds to the gap area factor. The load factor indicates the load with which the burner can be operated if the outlet speed is to be kept constant with the gap adjusted. It is assumed that the flow rates change proportionally to the load, ie that, for example, 40% burner load also 40% of the amount of O2, which is driven at normal load (= 100%), is placed on the burner. Normally, burners or reactors are referred to as "normal load" (100% load) or "part load"(<100% load). The load factor can therefore clarify the reference basis of the calculation more clearly.

Furthermore, a speed factor fv (at constant load), which corresponds to the reciprocal of the cleavage area factor.

The thickness variation takes place in a section which is at an angle α the Gaszuführabschnittes with respect to the longitudinal direction x is aligned.

The indicated position line L (Dotted line) corresponds to a first position of the inner Gaszuführabschnittes 11 relative to the second gas supply section 12 , with a gas passage 15 with a first gap width d1 , In the illustrated relative position of Gaszuführabschnitte 11 . 12 relative to each other is the second gap width d2 greater, namely the amount □ d enlarged, when using a thicker spacer element. With the chosen conical arrangement, the width variation ( □ d = d2 - d1 ) defined by the thickness variation of the spacer element in the longitudinal direction (offset □ x or. □ x19 ). Due to the conicity is the width variation □ d smaller than the offset □ x , The geometric dependence results from the angle of inclination α the Gaszuführabschnittes. The inner diameter and thus the cross-sectional area of the corresponding Gaszuführabschnittes changes in the conical section as a function of the longitudinal position ( x ).

In 4 is a multi-stream burner device 100 with three Gaszuführabschnitten 11 . 12 . 13 shown, including a third Gaszuführabschnitt 13 , This results in another mounting section 13.1 , on which further spacer elements 19c . 19d can be arranged. At the second gas supply section 12 is for a corresponding corresponding additional flange or mounting section 12.5 intended. The kit 1 has as at least four spacer elements 19a . 19b . 19c . 19d on. For further details, in particular view E, reference is made to the preceding description of the figures.

LIST OF REFERENCE NUMBERS

1

Mounting

3

table

10; 100

Multistream burner device

10.1

outlet end or burner outlet (burner tip)

11

first gas supply section

11.1

Flange or mounting section

11:11

end-side contact section, in particular sealing surface

12

second or further Gaszuführabschnitt

12.1

Flange or mounting section

12:11

end-side contact section, in particular sealing surface

12.2

inlet

12.3

Internal shoulder of the corresponding Gaszuführabschnittes

12.5

additional flange or mounting section

13

third or further Gaszuführabschnitt

13.1

Flange or mounting section

15

(first) gas passage, in particular gap

18

Fastening means, in particular biasing means

19

Distance element, in particular with ring seal

19a, 19b, 19c, 19d

another spacer element, in particular with ring seal

19.1

first end-side contact section, in particular sealing surface

19.2

second end-side contact section, in particular sealing surface

20

Control device, in particular comprising a logic unit

30

Display unit, in particular comprising a logic unit

A

first or second cross-sectional area or surface area of the respective gas passage (gas passage cross-section)

□ A

Variation of the cross-sectional area content

□ d

Variation of the gap width

d1

first width or width of a first gas passage, in particular gap width

d2

second width or width of a further gas passage, in particular gap width

di

Inner diameter of the corresponding Gaszuführabschnittes at the outlet

fa

Gap area factor

flast

Load factor (at constant speed)

fv

Speed factor (at constant load)

G1

first gas / fluid / medium or gas mixture

G2

second gas / fluid / medium or gas mixture

gn

third or nth gas / fluid / medium or gas mixture

L

Position line through the gap or along the gap

M

Center longitudinal axis of the multi-stream burner device

P1

first parameter, in particular composition of the (gas) mixture

P2

second parameter, in particular outlet velocity of the gas

P3

third parameter, in particular volume flow of the respective gas

P4

third parameter, in particular gas passage cross-section (area) or gap width

pn

nth parameter

Q (t)

flow

v

exit speed

x1

first overlap of Gaszuführabschnitten in the longitudinal direction

x2

additional (second) overlap of gas supply sections

x19

Thickness or longitudinal extent of the spacer element

□ x, □ x19

Offset due to thickness variation in the longitudinal direction

x

Longitudinal direction (width variation)

y

transversely

z

height direction

α

Angle of the Gaszuführabschnittes or gas outlet with respect to the longitudinal direction x

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 0095103 A1 [0010]
• EP 0108503 A2 [0011]
• DE 1152783 [0012]
• EP 0127273 A2 [0014]

Claims (16)

Assembly kit (1) comprising a multi-stream burner device (10; 100) arranged to provide a mixture of at least two media streams for POX processes each having at least one medium (G1, G2, Gn) from the group: gas, gas mixture, gaseous or liquid or dusty Fuel; in particular for oxidation processes in synthesis gas production, wherein the multi-stream burner device is set up for setting at least one parameter (P1, P2, P3, P4, Pn) from the group: composition of the mixture, exit velocity of the respective media stream from the multi-stream burner device, volume flow of the respective media stream; the multi-stream burner device comprising at least two gas supply sections (11, 12) positioned relative to each other defining at least one gas passage (15) for the mixture variably adjustable in width or in cross-section (A), characterized in that the multi-flow burner device comprises at least two mounting sections (11.1 , 12.1) on which the Gaszuführabschnitte are positioned relative to each other, in particular in the longitudinal direction, and the front side are sealable, wherein the mounting kit further comprises: at least two spacer elements (19, 19a, 19b) of different thickness (x19) with sealing function respectively set to the front Sealing the gas supply sections (11, 12) to one another, and further comprising a table (3) for a correlation of the respective spacer element or its thickness with at least one of the parameters, in particular with the exit velocity (v) and / or with an additional parameter relating to one n / the gas passage (15) or a gap width (d1, d2) at an outlet end (10.1) of the multi-stream burner device. Mounting kit to Claim 1 , wherein the table (3) specifies a correlation of the respective spacer element (19) or its thickness (x19) with the exit velocity (v), in particular on the basis of a manually or computer-assisted readable matrix; and / or wherein the table specifies a correlation of the exit velocity with the additional parameter relating to the gas passage (15) or the gap width (d1, d2) at the outlet end (10.1); and / or wherein table (3) specifies a correlation of all parameters of the group. Mounting kit to Claim 1 or 2 wherein at least one of the spacer elements (19) is a sealing ring adapted for gas-tight sealing of the corresponding Gaszuführabschnittes (11, 12) from the environment, in particular up to a pressure difference of 100bar, in particular a sealing ring made of metal; and / or wherein at least one of the spacer elements (19) is a sealing ring with two opposing radially extending sealing surfaces; and / or wherein at the respective mounting portion (11.1, 12.1) at least one end-side abutment portion (11.11, 12.11) is formed with a sealing surface for receiving or arranging the spacer element (19); and / or wherein at least one of the spacer elements (19) is a sealing ring in the form of a ring joint seal. Mounting kit according to one of the preceding claims, wherein at least two of the Gaszuführabschnitte (11, 12) taper towards the outlet end, in particular concentric and coaxial with each other, in particular with an angle (α) to the central longitudinal axis (M) of the multi-flow burner device in the range of 25 to 45 °. Mounting kit according to one of the preceding claims, wherein the mounting portions (11.1, 12.1) extend radially, in particular orthogonal to the longitudinal direction, and wherein at the respective mounting portion at least one radially oriented, front-side abutment portion (11.11, 12.11) for stationary mounting of the respective spacer element (19) is trained. Mounting kit to Claim 5 , wherein at least one of the abutment sections (11.11, 12.11) has a form-fitting contour, in particular in the form of a groove, which form-fitting contour is arranged for at least partially receiving the respective spacer element; and / or wherein at least one of the abutment sections has a form-fitting contour which extends in a radial plane, in particular in a rotationally symmetrical configuration. Mounting kit according to one of the preceding claims, wherein the respective mounting portion (11.1, 12.1) or at least one / the end-side abutment portion (11.11, 12.11) of the respective mounting portion is rotationally symmetrical; and / or wherein at least one of the spacer elements (19, 19a, 19b) is rotationally symmetrical; and / or wherein at least one of the Gaszuführabschnitte (11, 12) and / or the outlet end (10.1) is rotationally symmetrical about a / the central longitudinal axis (M) of the multi-stream burner device is formed; and / or wherein the respective mounting section (11.1, 12.1) has at least one screw connection, in particular with fixing means (18) which can be preloaded in the longitudinal direction. or screws; and / or wherein the respective mounting portion (11.1, 12.1) fastening means (18), in particular holes, openings and / or internal thread has, which fastening means are arranged rotationally symmetrical about one / the end-side abutment portion of the respective mounting portion for stationary mounting of the respective spacer element. Mounting kit according to one of the preceding claims, wherein the respective mounting portion is accessible from an end face, which is arranged opposite to the end face, to which the respective Gaszuführabschnitte or the respective spacer element (de-) can be mounted. Mounting kit according to one of the preceding claims, wherein the correlation is predetermined by the following equation for determining a cleavage area factor (fA): $$\begin{array}{c}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right)\end{array}$$

Mounting kit according to one of the preceding claims, wherein the multi-flow burner device has three Gaszuführabschnitte and is adapted to provide a mixture of at least three media streams, wherein the mounting kit comprises at least three or four spacer elements of different thickness. A method of assembling or setting a multi-stream burner apparatus (10; 100) adapted to provide a mixture of at least two media streams (G1, G2, Gn) for POX processes, in particular using a mounting kit (1) according to any one of the preceding claims, wherein at least two relative to each other positionable gas supply sections (11, 12) of the multi-flow burner device are positioned relative to each other by their mounting portions (11.1, 12.1) are mounted together, and thereby at least one in width or in cross-section (A) variably adjustable gas passage (15) is defined, characterized in that in the relative positioning at least one parameter (P1, P2, P3, P4, Pn) from the following group is set: composition of the mixture, exit velocity of the respective media stream from the multi-stream burner device, flow rate of the respective media stream, gas passage or gap width at a capacity utilization sseitigen end of the multi-stream burner device; wherein at least one spacer element (19) is selected from a group of at least two spacer elements (19a, 19b) of different thickness (x19) based on a correlation of the respective spacer element with at least one of the parameters and fixed between the mounting sections (11.1, 12.1) in that it defines the width or the cross-section (A) of the adjustable gas passage (15). Method according to the preceding method claim, wherein the correlation is specified by the following equation for determining a cleavage area factor (fA): $$\begin{array}{c}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right)\end{array}$$

Computer program product adapted to determine at least one factor from the group: split area factor (fA), load factor (fLast), speed factor (fv); for adjusting a multi-flow burner device (10; 100) of a mounting kit according to one of the preceding claims, wherein a correlation of the respective factor in Depending on a variation of the thickness of a spacer element of the mounting kit is determined, in particular based on the following equation: $$\begin{array}{c}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right)\end{array}$$

Method for determining at least one factor from the group: slit area factor (fA), load factor (fLast), speed factor (fv); in setting a multi-stream burner apparatus (10; 100) of a mounting kit according to any one of the preceding claims, wherein a correlation of the respective factor is determined in dependence on a thickness variation of a spacer of the mounting kit, in particular based on the following equation: $$\begin{array}{c}\text{fa}=\left({\left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)}^2\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \left(\text{d}1-\square \text{x}19\cdot \text{sin}\mathrm{\alpha }\right)\right)/\\ \left({\text{d1}}^{\text{2}}\cdot \text{cos}\mathrm{\alpha }+\text{di}\cdot \text{d}1\right).\end{array}$$

in particular by means of a computer program product according to the preceding claim. Use of an assembly kit (1) comprising: a multi-flow burner device (10; 100) arranged to provide a mixture of at least two media streams for POX processes, further comprising at least two spacer elements (19, 19a, 19b) of different thickness (x19) with sealing function, in particular Use of an assembly kit (1) according to one of the preceding claims, for mounting the multi-flow burner device (10; 100) or for setting at least one parameter (P1, P2, P3, P4, Pn) from the group: composition of at least one mixture of at least two media streams , Outlet velocity of a respective medium flow, volume flow of the respective medium flow, additional parameter relating to a gas passage (15) or a gap width (d1) at an outlet end (10.1) of the multi-stream burner device, wherein the gas passage (15) is adjusted by means of the corresponding spacer element by the Distance element (19) frontally between en two radial mounting sections (11.1, 12.1) of the multi-flow burner device is installed and fixed, in particular braced. Use of a plurality of annular joint seals (19b) having different thicknesses predefined relative to each other and relative to at least one parameter of a sealed multi-stream burner device, each as one of a plurality of alternative spacer elements for setting the parameter in a mounting kit (1) according to any one of previous device claims or in a method according to any one of the preceding method claims.

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