DE102004004895B3 - Heat exchanger comprises a plate packet delimited by a packet tension plate with openings having a diameter which is larger than the diameter of the plate packet - Google Patents

Abstract

Heat exchanger comprises a plate packet (1) delimited by a packet tension plate (3, 3a) with openings (20, 20a) having a diameter which is larger than the diameter of the plate packet. The plate packet is tensioned by four tension bolts (4) which run on the periphery of the heat exchanger plates and are welded to the packet tension plates. The tension bolts are positioned in the edge region of an opening angle on the casing side. The regions between the tension bolts lying outside the opening angle are each covered with a side metal sheet. Preferred Features: The packet tension plates are offset in the region between the tension bolts equal to the diameter of the plate packet.

Description

The The invention relates to a heat exchanger from round profiled heat transfer plates with passages for the heat transfer between media of the same or different physical state, consisting of a plate package consisting of at least two joined heat transfer plate pairs is formed, each consisting of two at the flow openings gas-tight welded Heat transfer plates consist of two closure plates with passages for a flowing through the plate pack Medium, the joined together Heat transfer plate pairs Limit both sides, with the respective adjacent heat transfer plate pairs and the limiting closure plates on the outer periphery to an independent Pressure chamber welded gas-tight are and a pressure-resistant housing with shell side arranged passage openings for a second medium, which the plate package flows through the jacket side, and frontal passage openings with connecting pieces, the with the passages the closure plates weldable are.

at such heat exchangers is known, the shell-side supply of the second medium in the inside of the cylindrical housing very much problematic, on the one hand, a bypass flow between the plate package and the inner wall of the cylindrical housing largely or even completely to avoid that significantly reduce the efficiency of the heat exchanger would and on the other hand to form a shell-side inflow, the one possible maximum and uniform application the designed heat transfer surface of the Plate packs with the incoming Sheath medium guaranteed.

Around a bypass as possible To avoid it is known between the outer circumference of the disk pack and the housing inner wall adaptable Durchflußleitbleche provide the rubber seals against the outer surface of the plate pack and against the inner surface of the housing of the heat exchanger to press, in this way the inflow area opposite the remaining lateral surface of the Seal plate packs. Rubber seals can on the one hand under thermal Conditions brittle be and break and thus lead to leaks and on the other are rubber seals not for suitable for all applications, such as high-pressure and high temperature areas where such heat exchangers are preferably used.

Out WO 02/16852 A1 is a heat exchanger the aforementioned Art known, in which at the periphery of the plate pack flow guides for the on the shell side inflowing Heat transfer medium are provided, which have an inner tube structure of the housing and partially associated with the disk pack, wherein at least two of the flow channels with an inner tube structure opposite to the plate package are arranged, which are supported against the inner wall of the surrounding housing. The Areas of the flow channels, having an inner tube structure and the inflow and Forming exit area, are connected to pipes in the Inlet and outlet connections of the surrounding housing engage, with at least one of the pipes leak-proof against the Inner wall of the inlet and / or outlet nozzle sealed metallic is.

With such a trained shell-side inflow Although a bypass between the inner wall of the housing and The plate package can be prevented but for use in the high pressure area it is necessary that the Areas of the flow guides, which communicate with the periphery of the disk pack additional activities across from the housing inner wall supported be to achieve a corresponding pressure stability of the heat exchanger. To beats For example, WO 02/1685 A1 before that these areas in addition to a non-flowing Heat transfer medium filled become. About that can out flow guides manufactured in this way for the shell-side inflow region, due to their compact design, not economically variable be adapted to each area of application and performance, in this way the To create a condition for everyone intended application always the maximum flow conditions in the shell-side inflow area of the heat exchanger prevail, which is known for a uniform flow of the Plate packs and thus for optimal use of the designed heat transfer surface of the plate package necessary. If this goal with the flow channels should be achieved according to WO 02/16852 A1, must therefore for each case of application case-related flow guides getting produced. The production of case-related flow guides But is technically complex and therefore expensive.

From the EP 07 60 078 B1 a plate heat exchanger is known which consists of a plurality of composite plate modules which are braced in a frame between spaced frame plates by means of clamping screws and in which which are welded to an adjacent outermost heat exchange plate of adjacent modules around the passage openings around. Such a trained plate heat exchanger is not suitable for the high-pressure area and for the shell-side flow against the plate pack.

From the EP 08 68 642 B1 a plate heat exchanger is known in which the joined profiled heat transfer plates are permanently connected to the through holes by soldering to a plate package. In this case, the plates are provided with at least one opening, which form a fastener channel in the soldered plate package through which a clamping screw for fixing the plate heat exchanger extends to a support member or a mounting plate, wherein the clamping screw is used simultaneously for clamping the soldered plate package intercept occurring pressure differences. Such a trained plate heat exchanger is also completely unsuitable for the high pressure range and in a Temperaturbreich of -200 ° to + 900 °. But a shell-side influx of a medium is not possible by fully soldered execution.

task The present invention is therefore the aforementioned Heat exchanger by improving that Heat exchanger as a metallically sealed and wear-free compact heat exchanger for the High pressure area and for one Temperature range from -200 ° C to + 900 ° C cost-effective for the intended Purpose of prefabricated standard modules can be produced and fluidic can be designed so that the Conceived heat transfer surface during shell-side influx of the disk pack maximum for the heat transfer is being used.

• – das Plattenpaket beiderseits durch eine Paketspannplatte mit Durchtrittsöffnungen begrenzt ist, die einen Durchmesser aufweist, der größer als der Durchmesser des Plattenpakets ist und der dem Innendurchmesser des Gehäusemantels angepaßt ist;
• – das Plattenpaket durch mindestens vier Spannbolzen verspannt ist, die an der Peripherie der Wärmeübertragungsplatten verlaufen und mit den Paketspannplatten verschweißt sind;
• – die Spannbolzen im Randbereich eines vorbestimmten mantelseitigen Öffnungswinkel positioniert sind, an die bei einem mehrpässigen Plattenpaket zusätzlich ein oder mehrere Mantelabtrennungen festgelegt sind;
• – die Bereiche zwischen den Spannbolzen, die außerhalb des Öffnungswinkels liegen, durch jeweils ein Seitenblech überdeckt sind, die an den angrenzenden Spannbolzen festgelegt sind und eine Form aufweisen, die der Peripherie der Wärmeübertragungsplatten des Plattenpakets angepaßt ist;
• – die Seitenbleche an den Enden mit U-förmigen Abwinklungen ausgebildet sind, die sich dichtend gegen den Innendurchmesser des Gehäusemantels abstützen;
• – die mantelseitigen Öffnungswinkel gegenüber den Bereichen des Plattenpakets, die von den Seitenblechen überdeckt sind, durch eine metallische Abdichtung abgedichtet sind;
• – das Plattenpaket über die U-förmigen Abwinklungen der Seitenbleche im Gehäusemantel lagestabil eingelagert ist und der Gehäusemantel durch Endplatten mit Anschlußstutzen, die gleichzeitig das Plattenpaket seitlich im Gehäuse fixieren, metallisch gasdicht verschlossen ist.

This object is achieved in that

• - The plate pack is bounded on both sides by a package clamping plate with openings, which has a diameter which is greater than the diameter of the plate pack and which is adapted to the inner diameter of the housing shell;
• - The plate pack is braced by at least four clamping bolts which extend at the periphery of the heat transfer plates and are welded to the package clamping plates;
• - The clamping bolts are positioned in the edge region of a predetermined shell-side opening angle to which one or more Mantelabtrennungen are additionally fixed in a mehrpichern plate package;
• - The areas between the clamping bolt, which lie outside the opening angle, are covered by a respective side plate, which are fixed to the adjacent clamping bolt and have a shape which is adapted to the periphery of the heat transfer plates of the plate pack;
• - The side plates are formed at the ends with U-shaped bends, which are sealingly supported against the inner diameter of the housing shell;
• - The shell-side opening angle to the areas of the plate pack, which are covered by the side plates are sealed by a metallic seal;
• - The plate pack is stored in a stable position on the U-shaped bends of the side plates in the housing shell and the housing shell is closed by gas-tight end plates with connecting pieces, which simultaneously fix the plate pack laterally in the housing.

By the inventive feature combination is the prerequisite created that the Heat exchanger economical from prefabricated standard assemblies as metallic sealed and wear-free Compact heat exchangers both in a fully welded embodiment as well as with a metal-sealed housing that can be used for a wide industrial application, such as for refrigeration and air conditioning, power plant technology, Building services, chem. process technology etc., at an operating temperature of -200 ° C to + 900 ° C are used without interference can. Through the chuck plates, the plate pack, the out gas-tight welded Heat transfer plate pairs and closure plates exists, limit both sides and by the clamping bolt with each other welded are, both the pressure inside the plate pack as well the shell-side pressure by the inflowing medium as well as possible pressure surges by short-term Pressure increases over the Package clamping plates and the clamping bolts added. Consequently are the connecting and sealing welds between the heat transfer plates and the closure plates essentially relieved of pressure, so that leaks due to bursting the welds due the permanent pressure load in the plate pack or a possible Pressure increase for example, by inevitable pressure shocks, even then excluded can be if the heat exchanger used in the high pressure area.

By the design of the opening angle of the shell-side inflow region on the positioning of the clamping bolt on the package clamping plate, which limit the inflow and the metallically sealed overlap ver remaining periphery of the plate package by means of the side plates, the condition is given that the shell-side inflow can be adapted very cost-effective in the production of a heat exchanger to the optimum flow conditions of the jacket medium, for the predetermined application uniform shell-side flow of the plate pack and thus maximum use ensure the designed heat transfer surface. Furthermore, by the clamping of the plate pack by means of the clamping bolt in conjunction with the U-shaped bend of the ends of the overlapping side plates which are sealingly supported after assembly against the inner diameter of the housing shell, the assembly of the heat exchanger is very simplified and thus carried out very inexpensively , Rather, with the metallic sealing support of the U-shaped bends of the side plates against the inner diameter of the housing shell the shell-side bypass is prevented at the same time and the plate package itself is stably positioned in the housing shell.

To a preferred embodiment of Invention is the metallic seal of the shell-side opening angle made with a gauzy metal fabric, which is in the area between the Clamping bolts and under the side panels in strips in the columns between adjacent heat transfer plate pairs is inserted sealingly. In this way, the shell side Bypass at the periphery of the plate pack effectively counteracted and the sealing with a thermally and chemically highly resistant sealing material who carried out the, which is clearly fixed in position by the side plates.

To a further preferred embodiment The invention relates to the sealed areas between the clamping bolts across from the shell-side opening angles each evacuated by a comb plate in the columns of adjacent heat transfer plate pairs used and over the length the clamping bolt is fixed to the clamping bolt and against the inner wall of the housing shell supports. Advantageously, these comb plates on a comb shape, the the contour of the gaps between the heat transfer plate pairs is adapted. With these comb plates, on the one hand, the sealing of the sealed gaps additionally supported between each two adjacent heat transfer plate pairs and the inserted in the columns metallic seal against the inflow clearly held in the predetermined position, so that a mantelseitiger Bypass at the periphery of the plate package also effectively prevented can be when the shell-side inflowing medium is gaseous and on the other hand, with a correspondingly designed width, the Combs one additional support the plate package against the inner wall of the housing shell are created and so that the positional stability of the plate pack in the housing jacket supports become.

To a further preferred embodiment the invention, the package clamping plates in the area between the Clamping bolts, which are covered by the side panels, approximately on discontinued the diameter of the plate pack.

On this way you can the side panels after inserting the metallic seals in the columns of the adjacent heat transfer plate pairs laterally on the remote part of the package clamping plates and also on the Clamping bolts adjacent combs clearly before welding fixed and fixed.

To a further preferred embodiment invention, each of the side plates consists of two partial side plates, wherein one of the partial side panels has a straight end, the Partially covered by the other part of the side sheet, which with a Z-shaped formed end, which is against the inner diameter of the housing jacket supported. With the two-part design of the side plates and the proposed Arrangement in the covered Peripheral region of the plate package and the Z-shaped design the free end of one of the two partial side plates, which is against the inner diameter of the housing shell supported, the inserted metallic seal is in the covered peripheral area the disk pack completely covered and stably positioned, thus preventing a jacket-side bypass. Furthermore, so that the condition is created that as a result the two-piece version the side panels the width changeable is, whereby a problem-free adjustment of the side plates to be covered area can be done during assembly. Consequently, the shell-side opening angle of the inflow area exclusively through the changed Positioning of the limiting clamping bolts on the clamping plates during production exactly to the intended use of the heat exchanger be adapted the existence maximum flow takes place through the jacket medium and the designed heat transfer surface of Plate packs optimal for the heat transfer is being used.

The service-free execution of the heat exchanger make it possible, that advantageously the Housing jacket with welded to the end plates. In this way, a fully welded gas-tight compact heat exchanger to disposal where leaks and leaks are completely excluded can be.

Of course you can If necessary, one of the end plates welded to the housing shell and a the end plates gas-tight solvable with the housing shell be connected. In this case, however, it is recommended that the releasable connection the end plate with the housing shell is metallically sealed.

Further Details of the invention will become apparent from the following detailed Description and attached Drawings in which preferred embodiments are illustrated.

In show the drawings:

1 : a schematic representation of a fully welded heat exchanger with two plate-side connecting pieces and two jacket pieces;

2 : a schematic representation of a partially cut plate pack with clamping bolt and connecting plate in front view;

3 : a schematically represented section AA of 1 ;

4 : a schematic representation of a partially broken view B of 3 ;

5 : A schematic representation of a package clamping plate in the side view with a closed side plate and a two-part running side plate.

The heat exchanger consists essentially of a plate package 1 with closure plates 19 . 19a , the chipboard 3 . 3a , the clamping bolt 4 - 4x , the side plates 6 . 6a or the partial side plates 6b . 6c and 6d . 6e the combs 5 - 5c , the metallic seals 11 and the housing shell 12 with the two end plates 13 . 13a and at least two on the housing shell 12 specified jacket 14 . 14a and at least two on the end plates 13 . 13a fixed plate-side connecting piece 23 . 23a ,

The housing 21 is in the embodiment shown a fully welded pressure vessel, which consists of the housing shell 12 and the two end plates 13 ; 13a with passages 25 ; 25a is formed, the gas-tight at the periphery with the housing shell 12 are welded. At the passage opening 25 the end plate 13 is the plate-side connecting piece 23 and at the passage opening 25a the end plate 13a the plate-side connecting piece 23a provided, respectively, the end plates 13 ; 13a and the clamping plate 3 . 3a penetrate and on the perimeter with the end plate 13 ; 13a are connected.

On the housing jacket 12 are shell-side openings 15 ; 15a provided, to which the jacket neck 14 ; 14a welded gas-tight for the jacket medium.

The plate package 1 consists of a number of joined round profiled heat transfer plates 2 - 2x , which were determined by heat technology for the intended use and from the closure plates 19 . 19a that the disk pack 1 close at the ends.

The heat transfer plates 2 - 2x are at the periphery of the passages to heat transfer plate pairs 16 ; 16a gas-tight welded and the adjacent heat transfer plate pairs 16 ; 16 are together with the closing closure plates 19 ; 19a welded gas-tight to each other at the outer periphery.

The closure plates 19 ; 19a are formed with passage openings, which together with the passage openings of the heat transfer plates 2 - 2x the passageways 24 ; 24a through the plate pack 1 form. At the openings of the shutter plates 19 ; 19a are the ends of the plate-side connecting piece 23 . 23a gas-tight welded, which is the package clamping plate 3 ; 3a and the end plate 13 ; 13a of the housing 21 penetrate.

The plate package 1 is on both sides by the package clamping plates 3 ; 3a with the passages 20 ; 20a limited by means of clamping bolts 4 - 4x are tense. The clamping bolts 4 - 4x run adjacent to the periphery of the disk pack 1 and are on both sides with plywood 3 ; 3a under predetermined bias of the plate package with the package clamping plates 3 ; 3a welded.

As in 3 shown are the clamping bolts 4 . 4b or the clamping bolts 4a . 4c at the package clamping plates 3 ; 3a in the end regions of the opening angle α; α1 of the shell-side flow area of the plate pack 1 positioned for the jacket medium. Thus, the shell-side opening angle α; α1 before welding the clamping bolts 4 . 4b and 4a . 4c in a heat exchanger economically and individually adaptable to the designed performance and the fluidic conditions of the jacket medium used. Consequently, the prerequisite is thus created that the correspondingly available lateral surface of the plate package 1 is uniformly acted upon by the jacket medium, so that each heat exchanger for its application can be designed so that the designed heat transfer surface of the plate package 1 is used optimally thermally.

The at the periphery of the disk pack 1 extending clamping bolt 4d . 4e are at 90 ° to the center of the opening angle α; α1 offset and the clamping bolts 4f - 4x are in the range of the opening angle α, α1 and are with the package clamping plates 3 ; 3a for further stabilization of the plate package 1 welded. The clamping bolts 4f ; 4x are rectangular in this particular case and at the same time serve to define the straight end 18 of the partial side sheet 6c ; 6f on the periphery of the disk pack 1 ,

The areas on the periphery of the disk pack 1 between the tension bolts 4 . 4b and 4a . 4c lie are opposite the opening angles α; α1 of the shell-side inflow area metallically sealed to a shell-side bypass at the periphery of the plate package 1 to prevent. For this purpose are in the columns 22 between each adjacent heat transfer plate pairs 16 . 16a metallic seals 8th sealingly inserted in strip form, which preferably consist of a gauze-like metal fabric and over the entire area between the clamping bolts 4 . 4b respectively. 4a . 4c extend.

The metallic seals 8th are opposite the opening angles α; α1 of the shell-side inflow region by comb plates 5 . 5a respectively. 5b . 5c Position stabilized positioned in the columns 22 the adjacent heat transfer plate pairs 16 . 16a intervene and over the length of the disk pack 1 extend. These comb plates 5 ; 5a ; 5b ; 5c run on the opposite side of the opening angle α; α1 parallel to the clamping bolts 4 ; 4a ; 4b ; 4c and are at the clamping bolt 4 ; 4a ; 4b ; 4c welded.

Advantageously, the ridges of the comb plates 5 ; 5a ; 5b ; 5c formed with a contour that matches the shape of the columns 22 equivalent. So support the comb plates 5 - 5c at the same time the sealing of the shell-side inflow region. Advantageously, the comb plates 5 - 5c designed in a width, which after mounting the heat exchanger to the inner wall of the housing 21 supported. Thus, the pressure-stable position of the plate package 1 in the case 21 additionally be improved.

The area between the clamping bolts 4 . 4b and 4a . 4c and over the length of the disk pack 1 , with the inserted metallic seals 8th in the columns 22 is sealed by partial side plates 6b . 6c respectively. 6d . 6e , as in 5 shown on the left, or one-piece side panels 6 ; 6a , like in the 5 shown on the right, covered, on the adjacent clamping bolt 4 ; 4a ; 4b ; 4c are welded and the metallic seals 8th in the columns 22 between the adjacent heat transfer plate pairs 16 . 16a stable position even at high pressure.

The at the clamping bolt 4 ; 4a ; 4b ; 4c adjacent end of the side panels 6 ; 6a or the partial side plates 6b ; 6c ; 6d ; 6e are with congruent U-shaped bends 7 . 7a respectively. 7b . 7c formed after mounting on the inner wall of the housing shell 12 supporting it in a sealing manner. Through these U-shaped bends 7 . 7a respectively. 7b . 7c the side panels 6 . 6a or partial side panels 6b - 6e is the plate package 1 in the case 21 Positionally stable positioned and pressure stabilized and at the same time are the metallic seals 8th in the columns 22 through the side panels 6 . 6a or partial side panels 6b - 6e pressurized and thus sealing in the columns 22 pressed.

As in 3 and on the left side of 5 shown are the part side panels 6c and 6e each with a straight end 18 trained, that of the clamping bolt 4f ; 4x and partly from a partial side panel 6d ; 6b with a Z-shaped end 17 is provided, covered. The Z-shaped end 17 the partial side plates 6d ; 6b is the plate package 1 so spaced it is after mounting on the inner wall of the housing shell 12 sealingly supports and thus another support point of the plate package 1 against the inner wall of the housing shell 12 trains the positional and pressure stability of the disk pack 1 further improved. With the training of partial side panels 6d . 6e respectively. 6b . 6c namely, one of the two cooperating partial side panels 6d ; 6e respectively. 6b ; 6c a straight end 18 has, that of the other partial side panel 6d ; 6c respectively. 6b ; 6c are covered, the partial side plates 6d . 6e respectively. 6b . 6c individually to the area to be covered, which is determined by the selected opening angle α, α1 of the shell-side inflow, adaptable.

How out 3 recognizable and in 2 is indicated, the described embodiment of the heat exchanger is designed mehrpaßt. For this purpose is in the passageway 24a of the disk pack 1 a metallic plate pass 9 and coat side, a metallic shell separation 10 used. The metallic jacket separation 10 is at the plate pack 1 slotted side and on the junction of two heat transfer plate pairs 16 . 16a fitted and by the inserted metallic seals 6 in the fissures 22 the adjacent heat transfer plate pairs 16 . 16a at the periphery of the disk pack 1 sealed and shell side opposite the inner wall of the housing shell 12 with a metallic seal 11 sealed.

Of the proposed according to the invention and completely Metallic sealed heat exchanger is nearly service-free and therefore for the compact design in a fully welded design in the high pressure and high temperature range suitable. But he can also by the special embodiment very much economically from prefabricated standard construction groups to every purpose individually designed for optimal use of the designed heat transfer surface become.

1

plate pack

2

Heat transfer plates

2a

Heat transfer plates

3

Package chipboard

3a

Package chipboard

4

clamping bolt

4a

clamping bolt

4b

clamping bolt

4c

clamping bolt

4d

clamping bolt

4e

clamping bolt

4f

clamping bolt

4x

clamping bolt

5

comb plate

5a

comb plate

5b

comb plate

5c

comb plate

6

Page sheet

6a

Page sheet

6b

Page sheet

6c

Page sheet

6d

Page sheet

6e

Page sheet

7

U-shaped bends

7a

U-shaped bends

7b

U-shaped bends

7c

U-shaped bends

8th

metallic seal

9

disk password

10

Coat Pass / coat separations

11

metallic Seal on jacket pass

12

housing jacket

13

endplate

13a

endplate

14

coat socket

14a

coat socket

15

shell side Through opening

15a

shell side Through opening

16

Heat transfer plate pairs

16a

Heat transfer plate pairs

17

Z-shaped end Part side plate

18

just leaking End of partial side sheet

19

closure plates

19a

closure plates

20

Through openings Package chipboard

20a

Through openings Package chipboard

21

casing

22

columns between a heat transfer plate pair

23

Connecting branch-plate side

23a

Connecting piece-plate side

24

Passageway plate pack

24a

Passageway plate pack

25

Passage opening end plate

25a

Passage opening end plate

α

opening angle

α1

opening angle

Claims (9)

Heat exchanger of round profiled heat transfer plates with passages for heat transfer between media of the same or different physical state, consisting of - a plate pack formed from at least two joined heat transfer plate pairs; consisting of two each at the flow openings gas-tight welded heat transfer plates and two closure plates with passages for a medium flowing through the plate package medium, which limit the joined heat transfer plate pairs on both sides, the adjacent heat transfer plate pairs and the limiting closure plates on the outer periphery gas-tight to a separate pressure chamber are welded and - a pressure-stable housing with shell side arranged passage openings for a second medium which druchströmt the plate pack shell side and end-side passages with connecting pieces, which are welded to the passage openings of the closure plates, characterized in that - the plate package ( 1 ) on both sides by a chipboard ( 3 respectively. 3a ) with passages ( 20 respectively. 20a ) having a diameter greater than the diameter of the plate pack ( 1 ) and the the inner diameter of the housing shell ( 12 ) is adjusted; - the disk pack ( 1 ) by at least four clamping bolts ( 4 - 4x ) at the periphery of the heat transfer plates ( 2 - 2x ) and with the package clamping plates ( 3 . 3a ) are welded; - the clamping bolts ( 4 . 4a respectively. 4b . 4c ) are positioned in the edge region of a predetermined shell-side opening angle (α; α1), to which in the case of a multiply plate package ( 1 ) additionally one or more jacket partitions ( 10 ) are defined; - the areas between the clamping bolts ( 4 . 4b and 4a . 4c ), which lie outside the opening angle (α, α1), in each case by a side plate ( 6 respectively. 6a ) are covered at the adjacent clamping bolt ( 4 . 4b ; 4a . 4c ) and have a shape corresponding to the periphery of the heat transfer plates ( 2 - 2x ) of the disk pack ( 1 ) is adjusted; - the side panels ( 6 ; 6a ) at the ends with U-shaped bends ( 7 . 7a ) are formed, which sealingly against the inner diameter of the housing shell ( 12 ) are supported; The jacket-side opening angles (α, α1) with respect to the areas of the plate pack ( 1 ) from the side panels ( 6 ; 6a ) are covered by a metallic seal ( 8th ) are sealed; - the disk pack ( 1 ) over the U-shaped bends ( 7 . 7a ) of the side panels ( 6 . 6a ) in the housing shell ( 12 ) is stored stable position and the housing shell ( 12 ) by end plates ( 13 respectively. 13a ) with connecting pieces ( 23 . 23a ), which simultaneously contains the disk pack ( 1 ) laterally in the housing ( 21 ), metallic gas-tight. Heat exchanger according to claim 1, characterized in that the metallic seal ( 8th ) the shell-side opening angle (α, α1) is a gauze-like metal fabric, which in the region between the clamping bolt ( 4 ; 4b ; 4a ; 4c ) in strips into the columns ( 22 - 22x ) of adjacent heat transfer plate pairs ( 16 - 16x ) and inserted from the side plates ( 6 ; 6a ) is covered. Heat exchanger according to Claims 1 and 2, characterized in that the sealed areas between the clamping bolts ( 4 . 4b ; 4a . 4c ) relative to the shell-side opening angles (α, α1) in each case by a comb plate ( 5 ; 5a ; 5b ; 5c ) are evacuated into the columns ( 22 - 22x ) of adjacent heat transfer plate pairs ( 16 - 16x ) and over the length of the clamping bolt ( 4 ; 4b ; 4a ; 4c ) on the clamping bolt ( 4 ; 4b ; 4a ; 4c ). Heat exchanger according to claim 3, characterized in that the comb plates ( 5 . 5a . 5b . 5c ) have a comb shape corresponding to the contour of the columns ( 22 - 22x ) between the heat transfer plate pairs ( 16 - 16x ) is adjusted. Heat exchanger according to one of claims 1 to 4, characterized in that the package clamping plates ( 3 . 3a ) in the area between the clamping bolts ( 4 . 4b respectively. 4a . 4c ) approximately to the diameter of the plate pack ( 1 ) are discontinued. Heat exchanger according to one of claims 1 to 5, characterized in that the side plates ( 6 ; 6a ) from two partial side plates ( 6b . 6c respectively. 6d . 6e ), wherein one of the partial side plates ( 6b or 6c respectively. 6d or 6e ) a straight end ( 18 ), which from the other partial side panel ( 6b or 6c respectively. 6d or 6e ) is partially covered in a planar manner, which has a Z-shaped end ( 17 ) provided against the inner diameter of the housing shell ( 12 ) is supported. Heat exchanger according to one of claims 1 to 6, characterized in that the housing jacket ( 12 ) with the end plates ( 13 . 13a ) is welded. Heat exchanger according to one of claims 1 to 6, characterized in that one of the end plates ( 13 ; 13a ) with the housing shell ( 12 ) and one of the end plates ( 13 ; 13a ) gas-tight detachable with the housing shell ( 12 ) connected is. Heat exchanger according to claim 8, characterized in that the detachable connection of the end plate ( 13 or 13a ) with the housing shell ( 12 ) is metallically sealed.