DE1601228A1 - Heat exchanger - Google Patents

Description

DR.-ING. DIPL-ING. Q. RIEBLING - | ΚΓΜ 998 PATENT ADVERTISEMENT '^ U ^ - ^ - & My sign

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899 Lindau (Bodensee) Rennerle 10 P.O. Box 365

6, 12th 1967

Wilton IKlenkus, 22 Maplewood Terrace, Springfield, Hampden, Massachusetts / USA

Heat exchanger.

The invention relates to a labyrinth-like heat exchanger for the effective transfer of heat from a flowing medium or media on one side of a partition to another flowing medium or media on the other side of the Partition wall, which generally has many possible uses as a heat exchanger «For example, it can serve as a boiler or an accessory part of a boiler or as a boiler or as a roof, wall or building filling ■

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of a house or room or the like with built-in piping and heat transfer or as a separate one Accessory part, do ο outside air for preparation in a building is heated by air extracted from this building. He can, as warned above, be used as a wall or building panel serve, with its unique properties offering both great rigidity and heat exchange potential. Furthermore, due to its construction, it can be used as a labyrinthine heat exchanger for acoustic treatment in such Cases and / or noise is a serious problem in connection with the treatment of air or other flowing medium.

The system requires the medium flow to be accelerated and decelerated as a result of changes in the available area in the course of flow between cells when flowing medium is pressed through a flow path. Besides are pulse-like speed changes in the flow occur which result in expansion or contraction, causing the labyrinthine or helical flow to accelerate and decelerate and to change the course, thereby increasing the turbulence to the heat transfer to enlarge.

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Previously known effective heat exchangers have been expensive to manufacture and complicated to construct, showed a lack of flexibility with regard to the areas of application and were restricted to their area of application limited.

The need for an effective heat exchanger of simple construction having a high elm transfer rate, along with the benefit of providing a wide range of capabilities thanks to a variety of features, has long been felt.

A main object of the invention is to provide a heat exchanger

of building block-like construction, with which through the simple means of increasing or decreasing the

Number of components or the size of the components or the Length or configuration of the flow path unlimited ä Changes can be achieved

Another objective is to create a heat exchanger for flowing media that has an extremely high elm transfer rate resulting from the unique construction of the Flow of the medium results through the structure, which in its construction with an extremely high strength

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is equipped.

As another particularly noteworthy feature, the heat exchanger of the present invention can either be used as a Synchronous or counter-rotating device or used as a temperature equalizer before mixing liquids ^ will.

In one of its embodiments, the heat exchanger is in a number of planar groups arranged in such a way that a flow path of a group on all of its surfaces is surrounded by other flow courses of its own group or neighboring groups.

This provides the benefits of structural strength and economic production and allows for easy removal and replacement of ψ at approximately complete elimination of UJartungskosten, based on the principle of the planned personnel changes.

In the drawings what embodiments of the invention illustrate are:

Figure 1 is an incomplete partially disassembled

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Perspective view of a grille of the type from which the heat transfer element is formed;

Figure 2 is a fragmentary, partially disassembled perspective view of one form of heat transfer element of a heat exchanger of the present invention; Λ

Figure 3 is a fragmentary perspective view of a heat exchanger embodying one form of the invention; wherein the flow paths of the medium of the heat transfer element are arranged vertically;

Figure 4 is a fragmentary perspective view of a heat exchanger embodying one form of the invention; u / orin the flow courses of the medium of the heat transfer element are arranged diagonally; ™

Figure 5 is a fragmentary perspective view of a heat exchanger embodying another form of the invention, and / orin a number of U / ärmeübertragungs- - - elements are arranged stacked;

Figure 6 is a fragmentary perspective view of another

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1P01228

Form of the noise transmission element, wherein the Flow courses of the medium arranged vertically are·

Heat exchangers can take the form of one or more heat transfer elements that are ^ walls or panels enclosed and / or separated and are connected to suitable inlet pieces or inlet lines in order to supply heated and / or cooled flowing media and are furthermore provided with suitable outlet pieces or outlet lines. Such arrangements for tug of the Inlet and outlet, which are very different in type, have not been illustrated in the drawings in order to simplify the same and to simplify the description to restrict to the essentials of the invention.

P When the term "flowing medium" is used in the following is to be understood as everything that flows, either in liquid or gaseous form.

The invention has been conveniently referred to as a "heat exchanger", the term in its classic sense used for a device that removes heat from a flowing medium flowing on one side of a partition,

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transfers to another flowing medium. which is based on the flows on the other side of the partition.

Figure 1 illustrates a grid or a grid structure made of metal, plastic or equivalent material, from which heat transfer elements, the Embody the invention, but are preferably not made compulsorily. They contain a number of equally spaced parallel upright longitudinally extending lamellar walls 20 and a number of in evenly spaced parallel, upright, transversely extending lamella-like Walls 30 which are perpendicular to and subdivide the walls 20, thereby creating a number of unconnected cells or chambers 40 of generally squares or rectangular or other shape and each of these cells or chambers by parts of a pair adjacent walls 20 and parts of a pair of adjacent walls 30 is limited.

The lattice or lattice structures so described are of an interlocking type, as they are often used in fittings used for fluorescent tubes to diffuse light

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will.

Figure 2 illustrates a heat transfer element 10, that embodies one form of the invention and by folding or deforming certain parts of certain walls 20 and 30 between adjacent chambers 40 to allow a connection between the chambers »A number of such interconnected chambers form one Flow course.

Certain walls 20 and 30 are canted or deformed, not indiscriminately, but according to a certain pattern or IT pattern in order to create a number of flow courses through the Provide heat transfer element, as will be explained in more detail below.

Portions of the walls 20 and 30 are deformed downward from their respective top surfaces or are canted upward from their respective lower surfaces to protrude at right angles to the direction of flow and to allow openings communicating between adjacent chambers.

Such bending or deformation can be on either side

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certain Uland 20 or 30 can be carried out. For example is shown in Fig. 2, a Uland 20 with a Number of equally spaced strips 22 is provided, which by deforming or bending of the wall from its upper edge downwards, so that the strips from each side face of the U / and alternate protrude outwards and thereby a number of openings 24 which are arranged at the same distance from one another determined by the wall.

A UJand 30 is equidistant from one another with a number arranged strips 32 provided by edging or bending the wall of its lower Edge upward so that the strips protrude alternately outward from each side surface of the wall and provide a number of equally spaced openings 34 through the U / and.

Such an arrangement of folding certain parts of Walls 30, either inwards or outwards or des Deforming certain parts of the walls 20, either after inside or outside, whereby certain cells or chambers 40 are connected to one another, via the entire UJärmeaustauschelement 10 carried out to a number

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of flow courses through it.

Openings 24 and 34 provide communication between adjacent ones Cells or chambers 40, the flow running up and down ι in a zigzag and a winding path, such as is explained in more detail below

The flow paths thus provided offer the advantage of a greater Ufirbelhildung the redium flowing in it or reach the media

In Fig. 3 an embodiment of the heat exchanger is illustrated, which contains a heat transfer element 10, that between inner and outer heat transfer walls or plates 50 or 52 arranged and farner from the side walls or panels 54 is enclosed.

Suitable connecting pieces (not shown), which carry out the usual connection functions, are expediently connected to the noise transfer element in order to provide inlets to and outlets from the heat exchanger for the flowing medium.

In the embodiment of Fig. 3, vertical flow

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run for the flowing medium, which only For the sake of simplicity, they can be referred to as the heated and cooled flow course, since they are interchanged could.

The eriary flow courses are indicated by the arrows A and the cooled flow courses are indicated by the arrows B, with hatching only being applied to the heated flow course for the sake of clarity is veran- herein illustrates'.

The flows A and B alternate across the width of the heat exchanger, passing through an opening 34 under one Strip 32 into a chamber 40, through an opening 24 over a strip 22 and into the next adjacent cell or Chamber 40, which is attached immediately above or below is where the process repeats.

It should be cautioned that if the flow courses of the same Length, equal pressure drops can be obtained from inlet to outlet, thereby avoiding short-circuiting of the flows which tend to reduce the overall efficiency of the

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To reduce heat transfer

Different lengths of the flow paths can be used in such Used in cases where it appears advantageous, such as in a triple, quadruple, or larger thermal exchange system.

Each (fluster of the flow path appears in a zigzag or checkerboard shape, with each cell or chamber has a stripe in the third direction which is alternately perpendicular to the faces passing through the walls and parallel with the panels is formed.

The embodiment of Fig. 4 is in construction identical to the embodiment shown in Fig. 3, except that diagonal hot and cold flow courses C and D are shown instead of the vertical flow courses become · -..-. <.

It can be seen that vertical and / or horizontal Flow courses or combinations of diagonal, vertical and horizontal flow courses can be used «

In the embodiment of FIG. 5, a multiple - or

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A layered construction is shown including a central U / heat transfer element 110 sandwiched between a upper U / arm transfer element 210 and a lower U / arm transfer element 310 is arranged, the upper U / arm transfer element 210 by a pair of lower and upper heat transfer walls or plates 250 and 252, respectively, and the lower heat transfer element 310 through a pair of lower and upper II / arm transfer walls or plates 350 or 352 is enclosed.

The U / arm transmission elements are layered on top of each other, wherein the middle Uhärme transfer element 110 from the lower Plate 250 of the upper heat transfer element 210 and the upper plate 352 of the lower heat transfer member 310 is included.

The U / arm transfer elements are also from side walls or plates enclosed (not shown) and the end faces are suitably connected with connecting pieces (also not shown) to bring in and out of flowing medium.

Although only three U / arm transmission elements. in the drawing

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are not intended to be limited to any number of elements of any desired length or arrangement of the flow path can be used to suit the different mounting or requirements to match the heat transfer.

Each heat transfer element consists of mutually spaced parallel, longitudinally extending, lamellar (! Foundations) of mutually spaced parallel, transversely extending lamellan-like walls interrupted, as in the embodiment of FIGS. 1 to 4.

By layering the heat transfer elements a greater flow capacity and a more complete and efficient heat transfer is achieved. For example if the flow path E of the middle element 110 is limited on two sides of its own plane by flows F and G, it is on its upper side in the next upper one horizontal plane bounded by the flow H and on its lower side in the next lower horizontal Level through the flow 3.

Of course, the formation of the currents in the different)

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Changed levels. That is, a hot current in that middle element is limited on its upper and lower side by hot currents or cold currents! or it is bounded on its sides by opposing currents «

In the embodiment shown in Fig. 6, the bevelled strips left out, "oby that Heat transfer element for production from a suitable plastic material, for example through a molding process is particularly suitable.

The stripless plastic element is preferably in used in cases where strength and rigidity are not, and especially do, critical factors the element is frequently removed, re-checked and replaced, instead of being cleaned in a scheduled overhaul program

Herein "a number of evenly spaced, parallel and upright faces 420 of a universal transmission element 410 are interrupted by a number of evenly spaced, parallel and upright faces 420 ":

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to limit a number of cells or chambers 440.

The walls 420 are along their upper edges with a number of spaced apart openings 424 and the walls 430 are spaced along their lower edges a number of ^ arranged openings 434 are provided, the openings 424 and 434 communicating with the cells or chambers 440 produce·

The flow courses can either be vertical or horizontal or run diagonally, as in the embodiments of FIG Figures 2 to 5.

In Figure 6, the currents K, L and Rl run vertically.

Although the cells or chambers in all embodiments in square or rectangular in shape, it will be understood that they are hexagonal or other shape can have.

The axis of a flow course does not necessarily need- wise to be linear and may contain a combination of a linear part and a zigzag part, not just one

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Level or dimension, but in two or three levels or Dimensions.

Claims

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Claims (1)

Claims 1 «j U / ärmetauschsysteii, marked by a cell-like filler wall (10), the one first row of interconnected, fluid receiving cells (40) provides, which a number of sinuous flows (A) arranged in a common plane define and a second series of interconnected, fluid-receiving cells (40) ι which define a number of winding flows (B), which in a common plane next to the are arranged in the first row, the walls (20, 30) form a partition between the first and second row 2. Uiärmetauschsysten according to claim 1, characterized g e k e η η ζ η i c h η e t, da8 a number of the claw-like filling walls (110, 210, 310) are stacked face to face and no flow connection have with each other, a partition (250, 252, 350, 352), separates adjacent filling walls, whereby the first and second rows (A, B) are arranged in a number of levels. ,, -, .... 3. UJärmetauschsystem according to claim 1, characterized characterized in that a number of cell-like filling walls are stacked one above the other face to face are arranged and fluidly connected to each other, whereby the first and second rows in a number are arranged by levels. 4 * Ufärmetauschsystem according to claim 1, characterized characterized in that the first and second rows are of equal length. 5. Ulärmetauschsystem according to claim 1, characterized characterized in that the first and second Series of unequal length are " 6 · Ulärmetauschsystem according to claim 1, characterized characterized that the flow connection between the cells receiving the flowing medium (40) by opening the edges between neighboring cells a Ufeise is granted to an up and down slope associated zigzag and helical flow course to be provided. 7. Uiärmetauschsy star according to claim 6, d a d u r c h - 20 - 9 0 9 8 LL / 1 0 8 Ρ characterized in that the openings (24, 34) by bending certain walls down from their upper edges, and by bending certain other walls from theirs lower edges are formed upwards. 8 «UJärmetauschsystem according to claim 6, characterized characterized in that the openings (424, 434) in certain walls (420) along their upper edges and in certain other walls (430) along their lower edges are formed. 9. Ulärmetauschsystem according to claim 1, since d u r c h characterized in that the flow courses of the first and second series in opposite directions get lost· 10. Iüärmetausch8y8tem according to claim 1, characterized characterized in that the flow courses the first and occasional row run in the same direction. U 0 9 l <LL / 10ΒΠ