JP2023550498A - Gasket devices, heat transfer plates, kits, and assemblies - Google Patents

Abstract

A gasket device (3, 97), a heat transfer plate (2, 96), a kit, and an assembly (1, 95) are provided. The gasket device (3, 97) includes a sealing part (9, 115) for sealing between the two heat exchanger plates (2, 96) of the plate heat exchanger, and , 96) each have a number of port holes (5-8, 99-110). The gasket device includes an attachment portion (22, 23, 50-52, 73-77, 122) arranged to attach the gasket device (3, 97) to one of the heat transfer plates (2, 96). Furthermore, it is equipped with. The sealing portion (9, 115) extends along at least a portion of each outer edge (17, 121) of the heat exchanger plate (2, 96), and extends through the port hole ( The annular outer sealing part (14, 119) is arranged to surround the heat exchanger plate (2, 96). and an annular inner sealing portion (15, 120) arranged to surround at least one of each of the port holes (5-8, 99-110). The gasket device (3, 97) has attachment parts (22, 23, 50-52, 73-77, 122) surrounded by an outer sealing part (14, 119), and an inner sealing part (15, 120). and that the attachment parts (22, 23, 50-52, 73-77, 122) are attached to the first part of one of the heat exchanger plates (2, 96) using adhesive means. It is characterized by comprising a fastening attachment part (38, 39, 65-67, 89-93, 129) arranged so as to be fastened to the side surface (4, 98).

Description

The present invention relates to a gasket device for sealing between two heat transfer plates of a plate heat exchanger and to a heat transfer plate arranged to cooperate with the gasket device. The invention also relates to a kit comprising such a gasket device and an assembly comprising such a gasket device and such a heat exchanger plate.

A plate heat exchanger, or PHE (Plate Heat Exchanger), typically consists of two end plates arranged in between in a manner in which a number of heat exchanger plates are arranged side by side, i.e. stacked and placed between them. Consists of. In one type of well-known PHE, the so-called gasketed PHE, a gasket is placed between the heat exchanger plates, typically in a gasket groove extending along the outer edge of the heat exchanger plates. be done. The end plates, and thus the heat exchanger plates, are pressed toward each other so that the gasket seals between the heat exchanger plates. The gasket defines parallel flow paths between the heat exchanger plates through which two fluids, initially at different temperatures, flow alternately to transfer heat from one fluid to the other. be able to. It is essentially essential that the gasket be properly positioned between the plates to avoid leakage from the passageway.

When the plate heat exchanger is closed, the gasket is crushed between the plates, thereby holding it firmly in place. However, when the gasket is not crushed between the plates, such as when the plate heat exchanger is assembled or opened for maintenance, there is some means to properly secure the gasket to the plates. is desired. It is known to apply an adhesive to the gasket groove of a heat exchanger plate in order to adhere the gasket in the gasket groove. However, adhesives can adversely affect the gasket and its sealing ability. The adhesive can also make it cumbersome to replace the gasket when required, since such replacement requires a 50-degree recess in the gasket groove to allow for proper application of the new gasket in the gasket groove. This is because it typically requires complete removal of old adhesive from the adhesive. It is also known to use a strip of adhesive tape applied over the gasket and gasket groove to secure the gasket to the heat exchanger plate. However, tape strips are unreliable because they can adversely affect the sealing ability of the gasket and can become loose and end up in the flow passages of the plate heat exchanger. Mechanical gasket fixing solutions have also been known for some time, for example through the applicant's own US Pat. This document discloses a gasket that is provided with securing means projecting from the outside of the gasket, the securing means being positioned around the outer edge of the heat exchanger plate to secure the gasket to the heat exchanger plate. It is arranged so that The securing means may effectively secure to the heat exchanger plate a portion of the gasket located along and near the outer edge of the heat exchanger plate. However, for fixing to the heat exchanger plate a portion of the gasket that is not arranged to extend along and near the outer edge of the heat exchanger plate, the fixing means according to US Pat.

U.S. Patent No. 4,635,715

It is an object of the present invention to provide reliable fastening of a gasket device to a heat exchanger plate along the outer edge of the heat exchanger plate, along a portion of the gasket device that is not arranged to extend near that outer edge. To provide a gasket device whose fastening does not adversely affect the gasket or its sealing ability or make gas exchange difficult. The basic idea of the invention is to provide the gasket device with a non-sealing attachment in a portion of the gasket device that is not arranged to extend along and near the outer edge of the heat exchanger plate; This attachment part is arranged to be fastened to the heat exchanger plate by adhesive means in order to fix the gasket device to the heat exchanger plate. Another object of the invention is to provide a heat exchanger plate arranged to cooperate with a gasket arrangement, a kit comprising the gasket arrangement, and an assembly comprising the gasket arrangement and the heat exchanger plate.

Gasket devices, heat transfer plates, kits, and assemblies to accomplish the above objectives are defined in the appended claims and discussed below.

The gasket device according to the invention comprises a seal for sealing between two heat exchanger plates of a plate heat exchanger, each of the heat exchanger plates comprising a number of port holes greater than one. The gasket device further comprises an attachment portion arranged to attach the gasket device to one of the heat exchanger plates. Parallel lower and upper gasket planes define or limit the extension of the gasket apparatus in the thickness direction of the gasket apparatus, and lower and upper attachment planes that are parallel to the lower and upper gasket planes define or limit the extension of the gasket apparatus in the thickness direction of the gasket apparatus. Defining or limiting the extension of the attachment of the gasket device in the thickness direction. The lower gasket plane and the lower attachment plane are arranged to face one of the heat exchanger plates, while the upper gasket plane and the upper attachment plane are arranged to face the other one of the heat exchanger plates. Placed. The seal includes an annular outer seal portion. An outer sealing portion extends along at least a portion of each outer edge of the heat exchanger plate and is disposed to surround the port hole of the heat exchanger plate. The seal further includes an annular inner seal portion. The inner sealing portion is surrounded by the outer sealing portion and is positioned to surround at least one of each port hole of the heat exchanger plate. The gasket device is characterized in that the attachment part is surrounded by an outer sealing part and arranged outside the inner sealing part. Furthermore, the attachment part comprises a clamping attachment part arranged to be clamped to the first side of one of the heat exchanger plates using adhesive means. Lower and upper fastening attachment planes that are parallel to the lower and upper gasket planes define or limit the extension of the fastening attachment portion of the attachment in the thickness direction of the gasket arrangement. The lower clamping attachment plane is arranged to face one of the heat exchanger plates, while the upper clamping attachment plane is arranged to face the other one of the heat exchanger plates.

In the following, when we simply refer to a "heat exchanger plate", we are referring to one of the heat exchanger plates.

In that the adhesive means is applied to the attachment portion instead of the sealing portion of the gasket device, the sealing ability of the gasket device is not compromised. Furthermore, the sealing part of the gasket device is not affected by the adhesive, and the gasket device can be replaced without difficulty if necessary, since complete removal of the old adhesive is not critical. .

In that the attachment portion is disposed within the outer sealing portion and outside the inner sealing portion of the seal, the attachment portion is not positioned to engage the outer edge of the heat exchanger plate. Alternatively, the attachment portion is not disposed to extend along the outer edge of the heat exchanger plate near the outer edge of this portion of the gasket device so as to provide adequate fastening to the heat exchanger plate. can be placed. The attachment portion engages only the first side of the heat exchanger plate and does not engage the second side.

The fastening attachment portion may have any suitable design. By way of example, the fastening attachment portion can be elongated and have a longitudinal extension that is essentially parallel to the longitudinal extension of the sealing portion of the gasket device.

The adhesive means may be of any suitable type, for example a glue or adhesive such as silicone, or a double-sided adhesive tape.

The gasket device may be designed such that the outer sealing portion is separated from the inner sealing portion. Alternatively, the outer sealing portion and the inner sealing portion may be partially integrally formed or integrated. These different options make the gasket device useful in different types of plate heat exchangers.

The attachment part may be connected to the outer sealing part such that it projects from the inside of the outer sealing part, and may potentially be integrally formed. Alternatively/additionally, the attachment part may be connected to the inner sealing part, possibly integrally formed, such that it projects from the outside of the inner sealing part. Thereby, the attachment can be arranged for proper fixing of the inner sealing part to the heat exchanger plate.

The gasket device is such that the sealing portion further comprises a diagonal sealing portion extending inside the inner sealing portion from a first portion of the outer sealing portion to a second portion of the outer sealing portion. can be designed. The inner sealing part is thereby surrounded by the diagonal sealing part and the area of the outer sealing part extending between the first and second parts of the outer sealing part. The attachment portion may or may not be connected to the diagonal sealing portion, and may or may not be disposed between the diagonal sealing portion and the inner sealing portion. This design may allow proper fixation of the diagonal sealing part to the heat exchanger plate.

The gasket device may further include a bridge portion connecting the inner sealing portion and the diagonal sealing portion. Furthermore, the fastening attachment portion of the attachment portion and the bridge portion may or may not be connected. The gasket device may include at least two bridge portions that are spaced apart and connect the inner sealing portion and the diagonal sealing portion, respectively. Additionally, the fastening attachment portion may connect at least two bridge sections. This design may allow proper fixation of the inner sealing part and the diagonal sealing part to the heat exchanger plate.

a gasket device arranged to define a flow path across a first side of one of the heat exchanger plates between the first and second of the port holes of the one of the heat exchanger plates; can be done. Additionally, the attachment portion of the gasket device may be placed in the flow path and thereby exposed to the medium flowing between the two heat exchanger plates.

The different possible locations of attachment make the gasket device useful in different types of plate heat exchangers.

The fastening attachment part of the attachment part can be connected directly to the sealing part, ie it can be designed as a protrusion or lip from the sealing part. Such a design may allow optimized fixation of the gasket device to the heat exchanger plate.

Alternatively, the fastening attachment part of the attachment part may be arranged at a distance greater than zero from the sealing part, ie it may be spaced apart from the sealing part. Such a design may allow an optimized sealing capability of the seal.

The design of the gasket device may be such that the upper attachment plane is arranged between the upper gasket plane and the lower attachment plane, ie the attachment extends below the upper gasket plane. Such a design can minimize the contact between the attachment part and the upper heat exchanger plate, i.e. the other one of the heat exchanger plates, which contact can be used to seal the gasket device. ability may be affected.

The attachment portion of the gasket device may further include a first connecting attachment portion connecting the fastening attachment portion of the attachment portion and the sealing portion. Lower and upper interlocking attachment planes that are parallel to the lower and upper gasket planes may define or limit the extension of the first interlocking attachment portion of the attachment in the thickness direction of the gasket device. The lower connecting attachment plane can be positioned to face one of the heat exchanger plates and the upper connecting attachment plane can be positioned to face the other one of the heat exchanger plates. The first connecting attachment portion and the fastening attachment portion partially enclose a space that is arranged to receive a protrusion of the heat exchanger plate to increase engagement between the gasket device and the heat exchanger plate. For example, a hook can be formed.

The attachment portion may further include a second connecting attachment portion spaced apart from the first connecting attachment portion and also connecting the fastening attachment portion of the attachment portion and the sealing portion to form a loop. The loop may be arranged to receive and surround one or more protrusions of the heat exchanger plate. Thereby, the engagement between the gasket device and the heat exchanger plate can be increased and the fixing of the gasket device to the heat exchanger plate can be optimized. The lower and upper interlocking attachment planes may or may not also define or limit the extension of the second interlocking attachment portion.

The design of the gasket device is such that the lower fastening attachment plane is arranged between the lower coupling attachment plane and the upper gasket plane, i.e., the first coupling attachment part and possibly the second coupling attachment part. may extend below the lower fastening attachment plane. Such a design may allow for increased engagement between the gasket device and the heat exchanger plate.

The lower coupling attachment plane may coincide with at least one of the lower gasket plane and the lower attachment plane. Such a design may allow optimized fixation of the gasket device to the heat exchanger plate.

The upper connecting attachment plane may coincide with at least one of the upper anchoring attachment plane and the upper attachment plane. Such a design may allow relatively mechanically straightforward construction of the gasket device.

The fastening attachment portion may include a longitudinally extending groove. The bottom of the groove may extend in an intermediate fastening attachment plane extending between the lower and upper fastening attachment planes. The grooves may allow transport of fluid across the attachment site which may allow detection of fluid leaks.

A heat exchanger plate according to the invention comprises more than one port hole and gasket groove. The gasket groove is arranged to receive a sealing part of the gasket device, and the sealing part is arranged to seal between the heat exchanger plate and another heat exchanger plate of the plate heat exchanger. Ru. The heat transfer plates are corrugated so as to extend between them in parallel lower and upper plate extension planes. Additionally, the heat exchanger plate includes a structure arranged to cooperate with the attachment portion of the gasket device. The attachment portion is arranged to attach the gasket device to the heat exchanger plate. A structural extension plane parallel to the lower and upper plate extension planes defines the lowermost extension of the structure. The gasket groove extends along at least a portion of the outer edge of the heat exchanger plate and includes an annular outer groove portion surrounding the port hole of the heat exchanger plate. Further, the gasket groove includes an annular inner groove portion surrounded by an outer groove portion and surrounding at least one of the port holes of the heat exchanger plate. The heat exchanger plate is characterized in that the structure is surrounded by an outer groove part and arranged outside the inner groove part. Furthermore, the structure comprises a fastening structure part arranged on the first side of the heat exchanger plate such that the fastening adhesion part of the attachment part is fastened by adhesive means. A fastening structure plane parallel to the lower and upper plate extension planes defines the uppermost extension of said fastening structure portion.

The lower and upper plate extension planes may, but need not, be the endmost extension planes of the heat exchanger plates. Thus, the heat exchanger plates may or may not extend beyond the lower and upper plate extension planes.

As used herein, by "extension at the extreme end" is meant an extension that does not exceed something, or more specifically, an extension that does not exceed the center of something.

The outer groove portion may be separated from the inner groove portion. Alternatively, the outer groove portion and the inner groove portion may be partially integrally formed or integrated.

The structure may be disposed in conjunction with the outer groove portion. Alternatively/additionally, the structure may be arranged in conjunction with the inner groove portion.

The gasket groove may further include a diagonal groove portion inside the inner groove portion extending from a first portion of the outer groove portion to a second portion of the outer groove portion. The structure may or may not be disposed in conjunction with the diagonal groove portion, and may or may not be located between the diagonal groove portion and the inner groove portion.

The heat exchanger plate may further include a flow path between the first and second of the port holes across the first side of one of the heat exchanger plates, the structure in the flow path. may be placed.

The heat exchanger plate may be such that the fastening structure portion of the structure is located directly adjacent to the gasket groove. Alternatively, the fastening structure portion of the structure may be located at a distance greater than zero from the gasket groove.

The design of the heat transfer plate may be such that the fastening structure plane is arranged between the lower and upper plate extension planes, and the fastening structure plane extends below the upper plate extension plane. . Such a design can prevent contact between the gasket device fastening attachments located on the fastening structure of the heat transfer plate and the heat transfer plate above, which contact may prevent the sealing of the gasket device. may affect stopping ability.

The structure may further include a first connecting structure extending between the fastening structure and the gasket groove. A connecting structure plane that is parallel to the lower and upper plate extension planes may define the lowermost extension of the first connecting structure portion. The first connecting structure portion may be arranged to accommodate the first connecting attachment portion of the attachment portion.

The structure may further include a second connecting structure portion spaced apart from the first connecting structure portion and extending between the fastening structure portion and the gasket groove. The second connecting structure portion may be arranged to accommodate the second connecting attachment portion of the attachment portion. The connecting structure plane may or may not also define the lowermost extension of the second connecting structure portion.

The first coupling structure part, the fastening structure part and possibly the second coupling structure part may surround the protrusion of the heat exchanger plate. The protrusion may include an upper portion extending in an upper plane that is parallel to and extends above the fastening structure plane. The upper plane may or may not coincide with the upper plate extension plane.

The design of the heat transfer plate may be such that the connecting structure plane coincides with at least one of the lower plate extension plane and the structure extension plane. The design of the heat exchanger plate may be such that the fastening structure plane is arranged between the connecting structure plane and the upper plate extension plane. Such a design may allow optimized engagement between the heat exchanger plate and the gasket device.

A kit according to the invention comprises a gasket device according to the above and adhesive means applied to the fastening attachment part of the gasket device.

An assembly according to the invention comprises a gasket device according to the above, a heat exchanger plate according to the above and adhesive means applied between a fastening attachment part of the gasket arrangement and a fastening structure part of the heat exchanger plate.

The advantages discussed above of the different embodiments of the gasket device according to the invention are essentially transferable to the corresponding different embodiments of the heat exchanger plates, kits and assemblies according to the invention. It is thereby emphasized that some, if not all, of these advantages become apparent when the gasket device, heat exchanger plate, kit, and assembly form part of a plate heat exchanger. It should be.

Still other objects, features, aspects, and advantages of the present invention will become apparent from the following detailed description as well as from the drawings.

The invention will now be explained in more detail with reference to the accompanying schematic drawings, in which: FIG.

1 is a plan view of an assembly according to a first embodiment of the invention comprising a heat exchanger plate, a gasket arrangement and adhesive means; FIG. 1a is an enlarged view of a portion of the heat exchanger plate in FIG. 1a; FIG. 1b is an enlarged view of a portion of the plate in FIG. 1b; FIG. 1b is an enlarged view of another part of the plate in FIG. 1b; FIG. 1a is an enlarged view of a portion of the assembly in FIG. 1a; FIG. 1e is an enlarged view of a portion of the assembly of FIG. 1e; FIG. 1f is a schematic cross-sectional view of the part of the assembly in FIG. 1f along line g; FIG. 1f is a schematic cross-sectional view of the part of the assembly in FIG. 1f along line h; FIG. 1f is a schematic cross-sectional view of the part of the assembly in FIG. 1f along line i; FIG. 1f is a schematic cross-sectional view of the part of the assembly in FIG. 1f along line j; FIG. 1e is an enlarged view of another portion of the assembly of FIG. 1e; FIG. 1k is a schematic cross-sectional view of the part of the assembly in FIG. 1k along line l; FIG. 1k is a schematic cross-sectional view of the part of the assembly in FIG. 1k along line m; FIG. 1k is a schematic cross-sectional view of the part of the assembly in FIG. 1k along line n; FIG. 1k is a schematic cross-sectional view of the part of the assembly in FIG. 1k along line o; FIG. FIG. 3 is a plan view of a portion of a heat exchanger plate of an assembly according to a second embodiment of the invention. FIG. 3 is a plan view from the back of a portion of a gasket device of an assembly according to a second embodiment of the invention; FIG. 3 is a plan view of a portion of an assembly according to a second embodiment of the invention; 2c is a schematic cross-sectional view of a portion of the assembly in FIG. 2c along line d; FIG. 2c is a schematic cross-sectional view of the part of the assembly in FIG. 2c along line e; FIG. 2c is a schematic cross-sectional view of a portion of the assembly in FIG. 2c along line f; FIG. 2c is a schematic cross-sectional view of a portion of the assembly in FIG. 2c along line g; FIG. FIG. 7 is a plan view of a portion of a heat exchanger plate of an assembly according to a third embodiment of the invention. FIG. 7 is a plan view from the back of a portion of a gasket device of an assembly according to a third embodiment of the invention; FIG. 6 is a plan view of a portion of an assembly according to a third embodiment of the invention; Figure 3c is a schematic cross-sectional view of the part of the assembly in Figure 3c along line d; Figure 3c is a schematic cross-sectional view of the part of the assembly in Figure 3c along line e; FIG. 6 is a plan view of an assembly according to a fourth embodiment of the invention comprising a heat exchanger plate, a gasket arrangement and adhesive means; 4a is an enlarged view of a portion of the assembly in FIG. 4a; FIG. 4b is a schematic cross-sectional view of a portion of the assembly in FIG. 4b along line c; FIG. 4b is a schematic cross-sectional view of the part of the assembly in FIG. 4b along line d; FIG.

Referring to Figures 1a and 1e to 1o, an assembly 1 is shown comprising a heat exchanger plate 2, a gasket arrangement 3 and adhesive means in the form of a double-sided adhesive tape (not visible). The heat exchanger plate 2, whose first side 4 is visible in the figure, is an essentially rectangular plate of stainless steel provided with several port holes 5, 6, 7 and 8. The heat exchanger plate 2 is arranged such that the lower plate extension plane p1 and the upper plate extension plane p2 extend between them (Fig. 1g to 1j and Fig. 1l to 1o). Pressed in a specific pattern within the area. The gasket device is made of rubber and has an extension in the thickness direction T defined by parallel lower gasket planes G1 and upper gasket planes G2 (FIGS. 1g to 1j and 1l to 1o). The assembly 1 is arranged to be included in a plate heat exchanger (not shown). In a plate heat exchanger, a gasket device 3 is arranged, and a sealing part 9 of the gasket device 3 seals between the heat exchanger plate 2 and another similar heat exchanger plate 2 (not shown). I will do it.

The heat exchanger plate 2 includes a gasket groove 10 that accommodates the sealing part 9 of the gasket device 3. More specifically, with reference to the upper half of assembly 1 (similar considerations are valid for the lower half of assembly 1), and in particular with reference to Figures 1a, 1b, and 1e, the gasket The groove 10 includes an annular outer groove portion 11, an annular inner groove portion 12, and an oblique groove portion 13, which respectively accommodate an annular outer sealing portion 14, an annular inner sealing portion 15, and an oblique sealing portion 16 of the sealing portion 9. Equipped with The outer groove portion 11 extends along a portion of the outer edge 17 and around the port holes 5, 6, 7, and 8 of the heat exchanger plate 2, while the inner groove portion 12 extends along a portion of the outer edge 17. 11 and further surrounds the port hole 6. The diagonal groove portion 13 extends inside the inner groove portion 12 from the first portion 18 to the second portion 19 of the outer groove portion 11 . As a result, the outer sealing portion 14 extends around the port holes 5, 6, 7, and 8 of the heat exchanger plate 2 along part of the outer edge 17, while the inner sealing portion 15 is surrounded by an outer sealing portion 14, which further surrounds the port hole 6. A diagonal sealing section 16 extends inside the inner sealing section 15 from the first section 20 to the second section 21 of the outer sealing section 14 . The outer groove portion 11 and the inner groove portion 12 are integrated or integrally formed outside the port hole 6. The boundary between the outer groove portion 11 and the inner groove portion 12 on the outside of the port hole 6 is indicated by a phantom line b in FIG. 1b. Similarly, the outer sealing portion 14 and the inner sealing portion 15 are integrated or integrated along a portion of the sealing portion 9 arranged to extend outside the port hole 6. It is formed by The boundary between the outer sealing part 14 and the inner sealing part 15 on the outside of the port hole 6 is indicated by a phantom line B in FIG. 1e.

With particular reference to FIGS. 1b to 1d, FIG. 1e, FIG. 1f, and FIG. It further includes a first attachment portion 22 and a second attachment portion 23 that engage the first structure 24 and the second structure 25, respectively. The first structure 24 and the second structure 25 are arranged between the inner groove portion 12 and the diagonal groove portion 13, and are connected to the diagonal groove portion 13. Furthermore, the second structure 25 is arranged in connection with the inner groove portion 12 as well. As a result, the first attachment part 22 and the second attachment part 23 are arranged between the inner sealing part 15 and the diagonal sealing part 16, and are formed integrally with the diagonal sealing part 16. ing. Furthermore, the second attachment part 23 is also formed integrally with the inner sealing part 15.

With particular reference to Figures 1c-1d and 1f-1o, the first structure 24 and the second structure 25 extend in and above the structure extension plane s coinciding with the lower plate extension plane p1. . More specifically, the first structure 24 and the second structure 25 are parallel to the lower plate extension plane p1 and the upper plate extension plane p2, and are parallel to the lower plate extension plane p1 and the upper plate extension plane p2. and a respective fastening structure portion 26 and 27, respectively, in the form of a planar surface extending in a fastening structure plane f arranged between. The fastening structures 26 and 27 are elongated and extend essentially parallel to the diagonal groove portion 13 of the gasket groove 10 at a distance greater than zero from the diagonal groove portion 13 . Additionally, the first structure 24 includes a spaced apart first coupling structure portion 28, a second coupling structure portion 29, and a third coupling structure extending between the diagonal groove portion 13 and the fastening structure portion 26. A structural portion 30 is provided. The second structure 25 includes a spaced apart first connecting structure portion 31 extending between the diagonal groove portion 13 and the fastening structure portion 27 and between the inner groove portion 12 and the fastening structure portion 27. , a second connection structure portion 32, and a third connection structure portion 33. The first coupling structure part 31, the second coupling structure part 32 and the third coupling structure part 33 thus comprise two parts each extending on either side of the fastening structure part 27. The first connection structure part 28, the second connection structure part 29, and the third connection structure part 30, the first connection structure part 31, the second connection structure part 32, and the third connection structure part 33 extends in and above the connecting structure plane c which coincides with the structure extension plane s.

The first interlocking structure portion 28, the second interlocking structure portion 29, the third interlocking structure portion 30, and the fastening structure portion 26 of the first structure 24 together with the diagonal groove portion 13 provide heat transfer The plate 2 here encloses a total of four number of projections 34. Each of the protrusions 34 includes an upper portion 35 extending in an upper plane t coinciding with the upper plate extension plane p2. Similarly, the first connecting structure portion 31, the second connecting structure portion 32, the third connecting structure portion 33, and the fastening structure portion 27 of the second structure 25 are connected to the diagonal groove portion 13 and the inner groove portion 12. Together, they surround a total of eight protrusions 36 of the heat exchanger plate 2 here. Each of the protrusions 36 includes an upper portion 37 extending in an upper plane t coinciding with the upper plate extension plane p2.

The first attachment portion 22 and the second attachment portion 23 extend between parallel lower attachment planes A1 and upper attachment planes A2. The lower attachment plane A1 coincides with the lower gasket plane G1, and the upper attachment plane A2 is arranged below the upper gasket plane G2. More specifically, the first attachment portion 22 and the second attachment portion 23 are respective fastening attachment portions extending between parallel lower fastening attachment planes F1 and upper fastening attachment planes F2, respectively. Equipped with 38 and 39. The upper fastening attachment plane F2 coincides with the upper attachment plane A2, while the lower fastening attachment plane F1 is arranged between the lower attachment plane A1 and the upper attachment plane A2. The fastening attachment parts 38 and 39 are elongated and extend essentially parallel to the diagonal sealing part 16 of the sealing part 9 at a distance greater than 0 from the diagonal sealing part 16 . Furthermore, the first attachment part 22 includes a first connection attachment part 40, a second connection attachment part 41 which connects the diagonal sealing part 16 and the fastening attachment part 38 of the sealing part 9, and A third connecting attachment portion 42 is provided. The second attachment part 23 connects the diagonal sealing part 16 and the fastening attachment part 39 of the sealing part 9, and the second attachment part 23 connects the inner sealing part 15 and the fastening attachment part 39. It includes an attachment part 43, a second connection attachment part 44, and a third connection attachment part 45. The first connecting attachment part 43, the second connecting attachment part 44 and the third connecting attachment part 45 thus comprise two sections each extending on either side of the fastening attachment part 39. First connection attachment part 40, second connection attachment part 41, and third connection attachment part 42; first connection attachment part 43, second connection attachment part 44, and third connection attachment part 45. extends between parallel lower connecting attachment planes C1 and upper connecting attachment planes C2. The lower connecting attachment plane C1 coincides with the lower attachment plane A1, and the upper connecting attachment plane C2 coincides with the upper attachment plane A2.

The first connecting attachment part 40, the second connecting attachment part 41, the third connecting attachment part 42 and the fastening attachment part 38 of the first attachment part 22 project from the oblique sealing part 16, here all forming a partially integrated loop 46 of two numbers. Similarly, the first connecting attachment portion 43, the second connecting attachment portion 44, the third connecting attachment portion 45, and the fastening attachment portion 39 of the second attachment portion 23 are connected to the diagonal sealing portion 16 and the inner sealing portion 39. Projecting from the stop part 15 are partially integrated loops 47, here numbering in total four.

The first connecting structure portion 28 , the second connecting structure portion 29 , and the third connecting structure portion 30 of the first structure 24 are connected to the first connecting structure portion 40 , the second connecting structure portion 30 of the first attachment portion 22 . A connecting attachment portion 41 and a third connecting attachment portion 42 are accommodated, respectively. Additionally, the fastening structure portion 26 of the first structure 24 accommodates the fastening attachment portion 38 of the first attachment portion 22. Each of the loops 46 of the gasket arrangement thereby surrounds two of the protrusions 34 of the plate. A strip of double-sided tape is placed between the fastening structure portion 26 and the fastening attachment portion 38. Similarly, the first connecting structure portion 31, the second connecting structure portion 32, and the third connecting structure portion 33 of the second structure 25 are connected to the first connecting structure portion 43 of the second attachment portion 23, A second connection attachment portion 44 and a third connection attachment portion 45 are accommodated, respectively. Furthermore, the fastening structure part 27 of the second structure 25 accommodates the fastening attachment part 39 of the second attachment part 23. Each of the loops 47 of the gasket device thereby surrounds two of the protrusions 36 of the plate. A strip of double-sided tape is placed between the fastening structure part 27 and the fastening attachment part 39. Thereby, the gasket device 3 is fixed to the heat exchanger plate 2.

The first attachment portion 22 and the second attachment portion 23 are arranged between the diagonal sealing portion 16 and the inner sealing portion 15 so that during normal proper operation of the plate heat exchanger, the plate are not exposed to any of the fluids flowing through the heat exchanger. However, if the sealing part 9 of the gasket device 3 does not function properly and fluid leaks between the diagonal sealing part 16 and the inner sealing part 15, the leaking fluid will be trapped as it will prevent leak detection. Shouldn't. Depending on the extent to which the gasket device 3 fills the gasket groove 10 in this area and the fastening structure parts 26, 27, the leaked fluid will flow through the inner sealing part 15, the diagonal sealing part 16, and There is a possibility that it will flow to the side of the fastening attachment parts 38 and 39. Furthermore, the first attachment part 22 is separated from the inner sealing part 15, allowing leaked fluid to pass through the gap between the first attachment part 22 and the inner sealing part 15. However, this does not apply to the second attachment part 23. Therefore, the fastening attachment portion 39 of the second attachment portion 23 is provided with a groove 48 extending along the longitudinal center axis of the fastening attachment portion 39. A bottom 49 of the groove 48 extends in an intermediate fastening attachment plane F3 extending between the lower fastening attachment plane F1 and the upper fastening attachment plane F2. The leaked fluid can pass through the second attachment part 23 through the groove 48.

Referring to Figures 2a to 2f, another assembly 1 (only a portion of which is shown) according to the invention is shown. Assembly 1 consists of heat exchanger plate 2 (with uncut port holes 5) shown partially in Figure 2a, gasket assembly 3 shown partially in Figure 2b, and double-sided tape. and adhesive means in the form of (not visible). The assembly 1 shown in Figures 2a to 2f has similarities to the assembly 1 shown in Figures 1a to 1k, the previous description being as shown in Figures 2a to 2f. It is also partially valid for assembly 1. Therefore, in the following we will focus on the differences between the two assemblies to avoid undue repetition. Furthermore, corresponding details of the assembly shown in FIGS. 1a to 1k and the assembly shown in FIGS. 2a to 2f have been given the same reference numerals, where appropriate.

The outer groove portion 11 of the seal 9 of the gasket assembly 3 extends along a portion of the outer edge (not shown) and around the port holes (only port hole 5 is shown) of the heat exchanger plate 2. while the inner groove portion 12 is surrounded by the outer groove portion 11 and further surrounds the port hole 5. The diagonal groove portion 13 extends inside the inner groove portion 12 from a first portion (not shown) of the outer groove portion 11 to a second portion 19 . As a result, the outer sealing part 14 extends around the port hole of the heat exchanger plate 2 along a part of the outer edge, while the inner sealing part 15 is surrounded by the outer sealing part 14. and further surrounds the port hole 5. A diagonal sealing portion 16 extends inside the inner sealing portion 15 from a first portion (not shown) of the outer sealing portion 14 to a second portion 21 . The outer groove portion 11 and the inner groove portion 12 are integrated or integrally formed outside the port hole 5. Similarly, the outer sealing portion 14 and the inner sealing portion 15 are integrated or integrated along a portion of the sealing portion 9 arranged to extend outside the port hole 5. It is formed by

With particular reference to FIGS. 2a to 2c, the gasket device 3 is arranged between a first structure 53 of the heat exchanger plate 2, a second structure, and a 54, and a first attachment portion 50, a second attachment portion 51, and a third attachment portion 52 that engage with a third structure 55. The first structure 53, the second structure 54, and the third structure 55 are arranged between the inner groove part 12 and the diagonal groove part 13, and are arranged in connection with the diagonal groove part 13. . As a result, the first attachment part 50, the second attachment part 51, and the third attachment part 52 are arranged between the inner sealing part 15 and the diagonal sealing part 16, and the diagonal sealing part It is formed by integrating with 16.

With particular reference to Figures 2a and 2d-2g, the first structure 53, the second structure 54, and the third structure 55 are arranged in a structure extension plane s coincident with the lower plate extension plane p1 and above it. Extends in. More specifically, the first structure 53, the second structure 54, and the third structure 55 are arranged in the lower plate extending plane p1 and between the lower plate extending plane p1 and the upper plate extending plane p2. and a respective fastening structure portion 56, 57 and 58 in the form of a corrugated surface extending between them in a fastening structure plane f located at. Additionally, the first structure 53, the second structure 54, and the third structure 55 have connecting structure portions 59 extending between the diagonal groove portion 13 and the respective fastening structure portions 56, 57, and 58. , 60, and 61, respectively. The connecting structure parts 59, 60 and 61 extend in and above the connecting structure plane c which coincides with the structure extension plane s.

The heat exchanger plate 2 has four spaced apart bridge receiving portions 62 each extending between the inner groove portion 12 and the diagonal groove portion 13, a first structure 53, a second structure 54, and a third structure. further comprising each of the structures 55 being disposed between two adjacent ones of the bridge receiving portions 62.

The connecting structural portions 59, 60, and 61 and the fastening structural portions 56, 57, and 58 of each of the first structure 53, second structure 54, and third structure 55 are connected to the bridge receiving portion 62 and the diagonal groove. Together with the parts 13 they surround the projections 63 of the heat exchanger plate 2, here a total of four in number. Each of the protrusions 63 includes an upper portion 64 extending in an upper plane t coinciding with the upper plate extension plane p2.

The first attachment portion 50, the second attachment portion 51 and the third attachment portion 52 extend between parallel lower attachment planes A1 and upper attachment planes A2. The lower attachment plane A1 coincides with the lower gasket plane G1, and the upper attachment plane A2 is arranged below the upper gasket plane G2. More specifically, the first attachment portion 50, the second attachment portion 51, and the third attachment portion 52 each extend between a parallel lower fastening attachment plane F1 and an upper fastening attachment plane F2. with respective fastening attachment portions 65, 66, and 67 present. The upper fastening attachment plane F2 coincides with the upper attachment plane A2, while the lower fastening attachment plane F1 is arranged between the lower attachment plane A1 and the upper attachment plane A2. Furthermore, the first attachment part 50, the second attachment part 51, and the third attachment part 52 connect the diagonal sealing part 16 of the sealing part 9 and the corresponding fastening attachment parts 65, 66, and 67. Respective connecting attachment portions 68, 69, and 70 are provided. Connecting attachment portions 68, 69, and 70 extend between parallel lower connecting attachment planes C1 and upper connecting attachment planes C2. The lower connecting attachment plane C1 coincides with the lower attachment plane A1, and the upper connecting attachment plane C2 coincides with the upper attachment plane A2.

The gasket device 3 includes four spaced apart bridge portions 71, each extending between the inner sealing portion 15 and the diagonal sealing portion 16, a first attachment portion 50, a second attachment portion 51, and a first attachment portion 50, a second attachment portion 51, and It is further provided that each of the third attachment parts 52 is arranged between two adjacent ones of the bridge parts 71. More specifically, each of the fastening attachment portions 65, 66, and 67 extends between two adjacent ones of the bridge portions 71 and is integrally formed with those two adjacent ones. ing.

The connecting attachment portions 68, 69, and 70 and the fastening attachment portions 65, 66, and 67 of the first attachment portion 50, the second attachment portion 51, and the third attachment portion 52 are connected to the bridge portion 71 and Together with the oblique sealing part 16 they form partially integrated loops 72, here a total of two in number, which project from the oblique sealing part 16.

The connecting structure portions 59, 60, and 61 of the first structure 53, second structure 54, and third structure 55 are connected to the first attachment portion 50, the second attachment portion 51, and the third attachment portion. 52 interlocking attachment portions 68, 69, and 70, respectively. Furthermore, the fastening structure portions 56, 57, and 58 of the first structure 53, the second structure 54, and the third structure 55 are connected to the first attachment portion 50, the second attachment portion 51, and the third attachment portion The fastening attachment portions 65, 66, and 67 of the attachment portion 52 of the. Each of the loops 72 of the gasket device thereby surrounds two of the protrusions 63 of the plate. Strips of double-sided tape are placed between the fastening structures 56, 57, and 58 and the fastening attachment parts 65, 66, and 67. Thereby, the gasket device 3 is fixed to the heat exchanger plate 2.

Referring to Figures 3a to 3e, yet another assembly 1 (only a portion of which is shown) according to the invention is shown. Assembly 1 consists of heat exchanger plate 2 (with uncut port holes 6) shown partially in Figure 3a, gasket assembly 3 shown partially in Figure 3b, and double-sided tape. and adhesive means in the form of (not visible). The assembly 1 shown in FIGS. 3a to 3e has similarities to the assembly 1 shown in FIGS. 1a to 1k, and the description related to FIGS. It is also partially valid for assembly 1 shown in 3e. Therefore, in the following we will focus on the differences between the two assemblies to avoid undue repetition. Furthermore, corresponding details of the assembly shown in FIGS. 1a to 1k and the assembly shown in FIGS. 3a to 3e have been given the same reference numerals, where appropriate.

With particular reference to FIGS. 3a to 3c, the gasket device 3 is connected to the first to fifth structures 78 to 82 of the heat transfer plate 2 to secure the gasket device 3 to the first side 4 of the heat transfer plate 2. It includes first to fifth attachment parts 73 to 77 that engage with. The first to fifth structures 78 to 82 are arranged between the inner groove portion 12 and the diagonal groove portion 13, and are connected to the diagonal groove portion 13. As a result, the first to fifth attachment parts 73 to 77 are arranged between the inner sealing part 15 and the diagonal sealing part 16, and are formed integrally with the diagonal sealing part 16. .

With particular reference to FIGS. 3a and 3d-3e, the first to fifth structures 78-82 extend in and above a structure extension plane s coinciding with the upper plate extension plane p2. More specifically, the first to fifth structures 78 to 82 have corrugations extending between them in the lower plate extension plane p1 and the fastening structure plane f coinciding with the upper plate extension plane p2. Each of the fastening structure portions 83 to 87 is provided in the form of a surface. The fastening structure portions 83-87 are elongated and extend essentially parallel to and directly adjacent to the diagonal groove portion 13.

The heat exchanger plate 2 has six spaced bridge receiving portions 88 (only four of which are shown) each extending between the inner groove portion 12 and the diagonal groove portion 13. - further comprising each of the fifth structures 78-82 being disposed between two adjacent ones of the bridge receiving portions 88.

The first to fifth attachment portions 73 to 77 extend between a parallel lower attachment plane A1 and an upper attachment plane A2 that extend between the lower gasket plane G1 and the upper gasket plane G2. More specifically, the first to fifth attachment portions 73 to 77 each extend between the parallel lower attachment attachment plane F1 and the upper attachment attachment plane F2, respectively. 93 in the form of a lip. The lower fastening attachment plane F1 and the upper fastening attachment plane F2 coincide with the lower attachment plane A1 and the upper attachment plane A2, respectively. The fastening attachment parts 89 to 93 are elongated, extend essentially parallel to the diagonal sealing part 16 of the sealing part 9, and are formed integrally with the diagonal sealing part 16.

The gasket device 3 includes six spaced bridge sections 94 (only four of which are shown), each extending between the inner sealing section 15 and the diagonal sealing section 16. - Each of the fifth attachment parts 73 to 77 is further provided to be disposed between two adjacent ones of the bridge parts 94. More specifically, each of the fastening attachment portions 89-93 extends between two adjacent ones of the bridge portions 94 and is formed integrally with the two adjacent ones.

Fastening structure portions 83-87 of the first to fifth structures 78-82 accommodate fastening attachment portions 89-93 of the first to fifth attachment portions 73-77. A strip of double-sided tape is placed between the fastening structure portions 83-87 and the fastening attachment portions 89-93. Thereby, the gasket device 3 is fixed to the heat exchanger plate 2.

Referring to Figures 4a-4d, yet another assembly 95 according to the present invention is shown. The assembly 95 comprises a heat exchanger plate 96, a gasket arrangement 97 and adhesive means in the form of a double-sided adhesive tape (not visible). The heat exchanger plate 96, whose first side 98 is visible in the figure, is an essentially rectangular plate of stainless steel provided with a number of port holes 99-110. The heat exchanger plate 96 is pressed in a particular pattern within different regions of the heat exchanger plate 96 such that it extends between them in different planes. For example, in the two end portions 111 and 112 defined by imaginary lines 113 and 114, respectively, the heat transfer plate 96 extends between them in the lower plate extension plane p1 and the upper plate extension plane p2. (Figures 4c and 4d). The gasket device 97 is made of rubber and has an extension in the thickness direction T defined by parallel lower gasket planes G1 and upper gasket planes G2 (FIGS. 4c and 4d). Some parts of gasket device 97 that are not relevant to the present invention are not shown in Figure 4a. Assembly 95 is arranged to be included in a plate heat exchanger (not shown). In the plate heat exchanger, a gasket device 97 is arranged, and the sealing portion 115 of the gasket device 97 seals between the heat exchanger plate 96 and another similar heat exchanger plate 96 (not shown). I will do it.

The heat exchanger plate 96 includes a gasket groove 116 that accommodates the sealing portion 115 of the gasket device 97. More specifically, gasket groove 116 includes an annular outer groove portion 117 and an annular inner groove portion 118 that accommodate an annular outer sealing portion 119 and an annular inner sealing portion 120 of sealing portion 115, respectively. Outer groove portion 117 extends, inter alia, along a portion of outer edge 121 and around port holes 99-110 of heat exchanger plate 96, while inner groove portion 118 is surrounded by outer groove portion 117. further surrounding port holes 107 and 108. As a result, the outer sealing portion 119 extends around the port holes 99-110 of the heat exchanger plate 96, inter alia along a portion of the outer edge 121, while the inner sealing portion 120 extends along a portion of the outer edge 121, while the inner sealing portion 120 It is surrounded by a sealing portion 119, which further surrounds port holes 107 and 108. The outer groove portion 117 and the inner groove portion 118 are spaced apart from each other, as are the outer sealing portion 119 and the inner sealing portion 120.

With particular reference to FIG. 4b, gasket device 97 further includes an attachment portion 122 that engages structure 123 of heat transfer plate 96 to secure gasket device 97 to first side 98 of heat transfer plate 96. Structure 123 is disposed in connection with inner groove portion 118 , and attachment portion 122 is integrally formed with inner sealing portion 120 .

With particular reference to FIGS. 4b-4d, the structure 123 extends in and above the structure extension plane s coinciding with the lower plate extension plane p1. More specifically, the structure 123 includes a fastening parallel to the lower plate extension plane p1 and the upper plate extension plane p2 and arranged between the lower plate extension plane p1 and the upper plate extension plane p2. A fastening structural part 124 is provided in the form of a planar surface extending in the structural plane f. The fastening structure portion 124 is elongated and extends essentially parallel to the inner groove portion 118 of the gasket groove 116 at a distance greater than zero from the inner groove portion 118 . Additionally, structure 123 includes spaced apart first and second connecting structure portions 125 and 126 extending between inner groove portion 118 and fastening structure portion 124 . The first connecting structure portion 125 and the second connecting structure portion 126 extend in and above the connecting structure plane c which coincides with the structural extension plane s.

The first connecting structure portion 125, the second connecting structure portion 126, and the fastening structure portion 124 of the structure 123 together with the inner groove portion 118 surround the protrusion 127 of the heat exchanger plate 96. . The protrusion 127 includes an upper portion 128 extending in an upper plane t that coincides with the upper plate extension plane p2.

The attachment portion 122 extends between parallel lower attachment planes A1 and upper attachment planes A2. The lower attachment plane A1 coincides with the lower gasket plane G1, and the upper attachment plane A2 is arranged below the upper gasket plane G2. More specifically, attachment portion 122 comprises a clamping attachment portion 129 extending between parallel lower clamping attachment planes F1 and upper clamping attachment planes F2. The upper fastening attachment plane F2 coincides with the upper attachment plane A2, while the lower fastening attachment plane F1 is arranged between the lower attachment plane A1 and the upper attachment plane A2. The fastening attachment portion 129 is elongated and extends essentially parallel to the inner sealing portion 120 of the sealing portion 115 at a distance greater than zero from the inner sealing portion 120 . Additionally, the attachment portion 122 comprises a spaced apart first and second connection attachment portion 130 and 131 connecting the inner sealing portion 120 and the fastening attachment portion 129 of the sealing portion 115. The first connecting attachment portion 130 and the second connecting attachment portion 131 extend between parallel lower connecting attachment planes C1 and upper connecting attachment planes C2. The lower connecting attachment plane C1 coincides with the lower attachment plane A1, and the upper connecting attachment plane C2 coincides with the upper attachment plane A2.

The first connecting attachment portion 130, the second connecting attachment portion 131, and the fastening attachment portion 129 of the attachment portion 122 form a loop 132 that projects from the inner sealing portion 120.

First interlocking structure portion 125 and second interlocking structure portion 126 of structure 123 accommodate first interlocking attachment portion 130 and second interlocking attachment portion 131 of attachment portion 122, respectively. Additionally, fastening structure portion 124 of structure 123 accommodates fastening attachment portion 129 of attachment portion 122. The loop 132 of the gasket device thereby surrounds the protrusion 127 of the plate. A strip of double-sided tape is placed between the fastening structure portion 124 and the fastening attachment portion 129. Thereby, gasket device 97 is fixed to heat exchanger plate 96.

When assembly 95 is placed in an operating plate heat exchanger, fluid flows across first side 98 of heat exchanger plate 96 through first port hole 103 and second port hole 105. , flows along the flow path between the third port hole 106 and the port holes 99 to 110. The attachment portion 122 is placed in this flow path and is therefore exposed to the fluid. Attachment 122 is designed and positioned to impact fluid flow as little as possible.

The gasket device described above thus comprises an attachment part arranged to be fastened to the first side of the heat exchanger plate using an adhesive. The gasket device may include mechanical fastening means for securing the gasket device to the heat transfer plate, such as mechanical fastening means arranged to engage the outer edge of the heat transfer plate, as indicated in some of the figures. Additional fastening means may also be provided. In this situation, these mechanical fastening means are not considered as part of the gasket device, but as separate parts that are still integrally formed with the gasket device.

The above-described embodiments of the invention should be seen as examples only. Those skilled in the art will appreciate that the discussed embodiments can be varied and combined in many ways without departing from the inventive concept.

By way of example, the various planes used above and in the figures to describe the heat exchanger plate according to the invention, and in particular its gasket fastening structure, are shown relative to each other as detailed and illustrated. It does not have to be extended and may have a different extension. Similarly, the various planes used above and in the figures to describe the gasket assembly according to the invention, and in particular the plate attachment thereof, are extended relative to each other as detailed and illustrated. It does not need to be present and may have different extensions. As an example with respect to FIG. 3d, for oblique sealing sections with different cross-sections, the upper attachment plane A2 and the upper clamping attachment plane F2 can define an upper gasket plane G2.

Furthermore, in addition to attachments as shown in FIGS. 1k to 1o, grooves may be provided to allow passage of fluid. For example, attachments such as those shown in Figures 2c to 2f may also benefit from such grooves.

The attachment parts described above and shown in the figures are connected to and integrally formed with the inner sealing part and/or the diagonal sealing part of the sealing part of the gasket device. According to an alternative embodiment of the invention, the attachment part may alternatively/additionally be connected to the outer sealing part and potentially integrally formed, such that it projects from the inside of the outer sealing part. For example, referring to FIG. 1e, the attachment portion may protrude from the area of the outer sealing portion extending between the diagonal sealing portion and the inner sealing portion. Specifically, the structure of the heat exchanger plate cooperating with the attachment can be designed accordingly.

The number of attachment parts, structures, bridge parts, bridge receiving parts, etc. in the previously described embodiments is merely exemplary and may be different.

The present invention can be used in conjunction with heat transfer plate types other than those previously described. Such other plate types may be made from materials other than stainless steel, may be provided with alternative designs of gasket grooves, and may be provided with other patterns or other port hole designs. . Corresponding logical thinking is valid for gasket devices.

Finally, the invention may be used in connection with types of plate heat exchangers other than purely gasketed, such as plate heat exchangers with a cassette of permanently bonded heat exchanger plates. Good too.

Attributes such as first, second, third, etc. are used herein only to distinguish between species, and not to represent any kind of mutual ranking between species of the same kind. must be emphasized.

It must be emphasized that details not relevant to the invention have been omitted and that the figures are schematic and not drawn to scale. It should also be mentioned that some parts of the diagram are more simplified than others. As such, some components may be shown in one figure but excluded in another.

1 assembly
2 Heat transfer plate
3 Gasket device
4 First side of heat transfer plate
5 port hole
6 port hole
7 port hole
8 port hole
9 Sealing part of gasket device
10 Gasket groove
11 Outer groove part
12 Inner groove part
13 Diagonal groove part
14 Outer sealing part of sealing part
15 Inner sealing part of sealing part
16 Diagonal sealing part of sealing part
17 Outer edge of heat transfer plate
18 First part of outer groove part
19 Second part of outer groove part
20 First part of the outer sealing part
21 Second part of the outer sealing part
22 First attachment part of gasket device
23 Second attachment part of gasket device
24 First structure of heat transfer plate
25 Second structure of heat transfer plate
26 Fastening structure part of the first structure
27 Fastening structure part of the second structure
28 First connected structure part of first structure
29 Second connected structure part of first structure
30 Third connected structure part of first structure
31 First connected structure part of second structure
32 Second connected structure part of second structure
33 Third connected structure part of second structure
34 Protrusion of heat exchanger plate
35 Top of protrusion
36 Protrusion of heat exchanger plate
37 Top of protrusion
38 Fastening attachment part of the first attachment part
39 Fastening attachment part of second attachment part
40 First connecting attachment part of the first attachment part
41 Second connecting attachment part of first attachment part
42 Third connecting attachment part of the first attachment part
43 First connecting attachment part of second attachment part
44 Second connection attachment part of second attachment part
45 Third connection attachment part of second attachment part
46 First attachment loop
47 Second attachment loop
48 Groove of fastening attachment part of second attachment part
49 Bottom of the ditch
50 First attachment part of gasket device
51 Second attachment part of gasket device
52 Third attachment part of gasket device
53 First structure of heat transfer plate
54 Second structure of heat transfer plate
55 Third structure of heat transfer plate
56 Fastening structure part of the first structure
57 Fastening structure part of the second structure
58 Fastening structure part of the third structure
59 Connecting structure part of the first structure
60 Connecting structure part of second structure
61 Connecting structure part of the third structure
62 Bridge receiving part of heat exchanger plate
63 Protrusion of heat exchanger plate
64 Top of protrusion
65 Fastening attachment part of the first attachment part
66 Fastening attachment part of second attachment part
67 Fastening attachment part of the third attachment part
68 Connecting attachment part of the first attachment part
69 Connecting attachment part of second attachment part
70 Connecting attachment part of the third attachment part
71 Bridge part of gasket device
72 First, second, or third attachment loop
73 First attachment part of gasket device
74 Second attachment part of gasket device
75 Third attachment part of gasket device
76 Fourth attachment part of gasket device
77 Fifth attachment part of gasket device
78 First structure of heat exchanger plate
79 Second structure of heat transfer plate
80 Third structure of heat transfer plate
81 Fourth structure of heat transfer plate
82 Fifth structure of heat transfer plate
83 Fastening structure part of the first structure
84 Fastening structure part of the second structure
85 Fastening structure part of the third structure
86 Fastening structure part of the fourth structure
87 Fastening structure part of the fifth structure
88 Bridge receiving part of heat exchanger plate
89 Fastening attachment part of the first attachment part
90 Fastening attachment part of second attachment part
91 Fastening attachment part of the third attachment part
92 Fastening attachment part of the 4th attachment part
93 Fastening attachment part of the 5th attachment part
94 Bridge part of gasket device
95 Assembly
96 Heat transfer plate
97 Gasket device
98 First side of heat transfer plate
99 port hole
100 port holes
101 Port hole
102 port hole
103 Port hole
104 port hole
105 Port hole
106 port hole
107 Port hole
108 port hole
109 Port hole
110 port hole
111 End part of heat exchanger plate
112 End part of heat exchanger plate
113 Imaginary line defining the end part
114 Imaginary line defining the end portion
115 Sealing part of gasket device
116 Gasket groove
117 Outer groove part
118 Inner groove part
119 Outer sealing part of sealing part
120 Inner sealing part of sealing part
121 Outer edge of heat transfer plate
122 Attachment part of gasket device
123 Structure of heat transfer plate
124 Fastening structure part of structure
125 First connected structural part of structure
126 Second connected structural part of structure
127 Protrusion of heat transfer plate
128 Top of protrusion
129 Fastening attachment area
130 First connecting attachment part of attachment part
131 Second connecting attachment part of attachment part
132 Attachment loop
p1 Lower plate extension plane
p2 Upper plate extension plane
b Boundary between outer groove part and inner groove part
s Structure extension plane
c Connected structure plane
t upper plane
f Fastening structure plane
G1 Lower gasket plane
G2 Upper gasket plane
B Boundary between outer sealing part and inner sealing part
A1 Lower attachment plane
A2 Upper attachment plane
F1 Lower fastening attachment plane
F2 Upper fastening attachment plane
C1 Lower connection attachment plane
C2 Upper connection attachment plane
T Thickness direction of gasket device

Claims (32)

A gasket device (3, 97), the gasket device (3, 97) includes a sealing part (2, 96) for sealing between two heat transfer plates (2, 96) of a plate heat exchanger. 9, 115), wherein the heat exchanger plate (2, 96) includes a sealing portion (9, 115) each comprising a number of port holes (5 to 8, 99 to 110) greater than one; an attachment part (22, 23, 50-52, 73-77, 122) arranged to attach the gasket device (3, 97) to one of the heat exchanger plates (2, 96); , with parallel lower and upper gasket planes (G1, G2) defining the extension of said gasket arrangement (3) in the thickness direction (T) of said gasket arrangement (3, 97); Lower and upper attachment planes (A1, A2) parallel to the gasket planes (G1, G2) of the gasket device (3, 97) in the thickness direction (T) of the gasket device (3, 97) The lower gasket plane (G1) and the lower attachment plane (A1) define the extension of the attachment portions (22, 23, 50-52, 73-77, 122) of the heat exchanger plate (2). , 96), and said upper gasket plane (G2) and said upper adhesion plane (A2) face the other one of said heat exchanger plates (2, 96). The sealing portion (9, 115) extends along at least a portion of each outer edge (17, 121) of the heat transfer plate (2, 96), an annular outer sealing portion (14, 119) arranged to surround the port holes (5-8, 99-110) of the plate (2, 96); and an annular outer sealing portion (14, 119). an annular inner sealing portion (15, 120) and,
The attachment portion (22, 23, 50-52, 73-77, 122) is surrounded by the annular outer sealing portion (14, 119) and is arranged outside the annular inner sealing portion (15, 120). and the attachment portion (22, 23, 50-52, 73-77, 122) is attached to the first side surface (of one of the heat exchanger plates (2, 96) using adhesive means). 4, 98), parallel to said lower and upper gasket planes (G1, G2); Certain lower and upper fastening attachment planes (F1, F2) are located at the attachment points (22, 23, 50-52, 73-77, 122) in the thickness direction (T) of the gasket device (3, 97). ), the lower fastening attachment plane (F1) is defined as the extension of the fastening attachment parts (38, 39, 65-67, 89-93, 129) of , and the upper fastening attachment plane (F2) is arranged to face the other one of the heat exchanger plates (2, 96). gasket device (3, 97). The gasket device (97) of claim 1, wherein the annular outer sealing portion (119) is separated from the annular inner sealing portion (120). Gasket device (3) according to claim 1, wherein the annular outer sealing portion (14) and the annular inner sealing portion (15) are formed partially integrally. Gasket device (3, 97) according to any one of claims 1 to 3, wherein the attachment portion (23, 122) is connected to the annular inner sealing portion (15, 120). The sealing portion (9) extends from the first portion (20) of the annular outer sealing portion (14) to the annular outer sealing portion (14) inside the annular inner sealing portion (15). It further includes an oblique sealing portion (16) extending to the second portion (21), and the attachment portions (22, 23, 50-52, 73-77) are attached to the oblique sealing portion (16). Gasket device (3) according to any one of the preceding claims, connected and arranged between the oblique sealing part (16) and the annular inner sealing part (15). Further comprising a bridge portion (71, 94) connecting the annular inner sealing portion (15) and the diagonal sealing portion (16), the fastening attachment of the attachment portion (50-52, 73-77) The gasket device (3) according to claim 5, wherein the portions (65-67, 89-93) and the bridge portion (71, 94) are connected. Across the first side (98) of one of the heat exchanger plates (96), the first and second of the port holes (99-110) of one of the heat exchanger plates (96) Any one of claims 1 to 5, wherein the gasket device (97) is arranged to define a flow path between the port holes (103, 105), and the attachment portion (122) of the gasket device (97) is arranged in the flow path. Gasket device (97) according to item 1. Gasket device according to any one of claims 1 to 7, wherein the fastening attachment portions (89-93) of the attachment portions (73-77) are directly connected to the sealing portion (9). (3). The fastening attachment portions (38, 39, 65-67, 129) of the attachment portions (22, 23, 50-52, 122) are arranged at a distance greater than 0 from the sealing portion (9, 115). Gasket device (3, 97) according to any one of claims 1 to 7. A gasket arrangement according to any one of claims 1 to 9, wherein the upper adhesion plane (A2) is arranged between the upper gasket plane (G2) and the lower adhesion plane (A1). 3, 97). The attachment portion (22, 23, 50-52, 122) is a first connection that connects the fastening attachment portion (38, 39, 65-67, 129) and the sealing portion (9, 115). The gasket device further comprises an attachment portion (40, 43, 68-70, 130), with lower and upper interlocking attachment planes (C1, C2) parallel to the lower and upper gasket planes (G1, G2). In the thickness direction (T) of (3, 97), the extension of the first connected attachment portion (40, 43, 68-70, 130) of the attachment portion (22, 23, 50-52, 122) the lower connecting attachment plane (C1) is arranged to face one of the heat exchanger plates (2, 96), and the upper connecting attachment plane (C2) faces the heat exchanger plate (2, 96). Gasket device (3, 97) according to any one of claims 1 to 10, arranged to face the other one of the gaskets (3, 96). The attachment part (22, 23, 122) is a second connection attachment part (41, 44, 131) separated from the first connection attachment part (40, 43, 130), and includes a loop (46, a second connecting attachment part (41, 44, 131) connecting said fastening attachment part (38, 39, 129) and said sealing part (9, 115) to form a second connection attachment part (47, 132); Gasket device (3, 97) according to claim 11, comprising: Gasket device (3, according to claim 11 or 12, wherein the lower fastening attachment plane (F1) is arranged between the lower connecting attachment plane (C1) and the upper gasket plane (G2) 97). Gasket arrangement (as claimed in any one of claims 11 to 13), wherein the lower interlocking attachment plane (C1) coincides with at least one of the lower gasket plane (G1) and the lower attachment plane (A1) 3, 97). Gasket according to any one of claims 11 to 14, wherein the upper connecting attachment plane (C2) coincides with at least one of the upper fastening attachment plane (F2) and the upper attachment plane (A2). Equipment (3, 97). Said fastening attachment portion (38) comprises a longitudinally extending groove (48), the bottom (49) of said groove (48) meeting said lower and upper fastening attachment planes (F1, F2). Gasket device (3) according to any one of the preceding claims, extending in an intermediate fastening attachment plane (F3) extending between. a gasket groove (10, 116) arranged to accommodate a number of port holes (5-8, 99-110) greater than 1 and a seal (9, 115) of a gasket device (3, 97); A heat exchanger plate (2, 96) comprising: and, the sealing portion (9, 115) is a heat exchanger plate (2, 96), and the other heat exchanger plate (2, 96) of the plate heat exchanger. 2, 96), and the heat exchanger plate (2, 96) is arranged to seal between the parallel lower and upper plate extension planes (p1, p2). The heat transfer plate (2, 96) is corrugated so as to extend between the plate extension planes (p1, p2), and the heat exchanger plate (2, 96) is attached to the attachment portions (22, 23, 50 to 50) of the gasket device (3, 97). A structure (24, 25, 53-55, 78-82, 123) arranged to cooperate with the attachment part (22, 23, 50-52, 73) -77, 122) has a structure (24, 25, 53-55, 78-82, 123) arranged to attach the gasket device (3, 97) to the heat exchanger plate (2, 96). further comprising a structural extension plane (s) parallel to the lower and upper plate extension planes (p1, p2), which The gasket groove (10, 116) extends along at least a portion of the outer edge (17, 121) of the heat exchanger plate (2, 96) and an annular outer groove portion (11, 117) surrounding the port holes (5 to 8, 99 to 110) of (2, 96); an annular inner groove portion (12, 118) surrounding at least one of the port holes (5 to 8, 99 to 110) of 2);
The structure (24, 25, 53-55, 78-82, 123) is surrounded by the annular outer groove portion (11, 117) and arranged outside the annular inner groove portion (12, 118). and the structure (24, 25, 53-55, 78-82, 123) has the attached portion (22, 23, 50-52, 73-77, 122) fastening structure parts (26, 27) arranged so that the fastening attachment parts (38, 39, 65-67, 89-93, 129) are fastened by adhesive means; , 56-58, 83-87, 124), and a fastening structure plane (f) parallel to said lower and upper plate extension planes (p1, p2) is provided with said fastening structure parts (26, 27 , 56-58, 83-87, 124). 18. The heat exchanger plate (96) of claim 17, wherein the annular outer groove portion (117) is spaced apart from the annular inner groove portion (118). The heat exchanger plate (2) according to claim 17, wherein the annular outer groove portion (11) and the annular inner groove portion (12) are formed partially integrally. Heat exchanger plate (2, 96) according to any one of claims 17 to 19, wherein the structure (25, 123) is arranged in connection with the annular inner groove portion (12, 118). The gasket groove (10) extends from a first portion (18) of the annular outer groove portion (11) to a second portion of the annular outer groove portion (11) inside the annular inner groove portion (12). (19), and the structures (24, 25, 53-55, 78-82) are arranged in connection with the diagonal groove portion (13) and 21. The heat exchanger plate (2) according to claim 17, wherein the heat transfer plate (2) is arranged between the oblique groove portion (13) and the annular inner groove portion (12). Across the first side surface (98) of one of the heat exchanger plates (96), a flow is provided between the first and second port holes (103, 105) of the port holes (99-110). 21. A heat exchanger plate (96) according to any one of claims 17 to 20, further comprising a channel, and wherein the structure (123) is arranged in the channel. A transmission according to any one of claims 17 to 22, wherein the fastening structure portion (83-87) of the structure (78-82) is arranged directly adjacent the gasket groove (10). Hot plate (2). The fastening structure portion (26, 27, 56-58, 124) of the structure (24, 25, 53-55, 123) is arranged at a distance greater than 0 from the gasket groove (10, 116). , The heat exchanger plate (2) according to any one of claims 17 to 22. Heat transfer plate (2, 96) according to any one of claims 17 to 24, wherein the fastening structure plane (f) is arranged between the lower and upper plate extension planes (p1, p2). ). Said structure (24, 25, 53-55, 123) has a first portion extending between said fastening structure portion (26, 27, 56-58, 124) and said gasket groove (10, 116). The first connecting structure further includes a connecting structure portion (28, 31, 59 to 61, 125), and the connecting structure plane (c) is parallel to the lower and upper plate extension planes (p1, p2). The first connection structure portion (28, 31, 59-61, 125) defines an extension at the lowermost end of the portion (28, 31, 59-61, 125), and the attachment portion (22, 26. Heat transfer according to any one of claims 17 to 25, arranged to accommodate the first connecting attachment part (40, 43, 68-70, 130) of the heat exchanger (23, 50-52, 122) Board (2, 96). The structure (24, 25, 123) further comprises a second connection structure part (29, 32, 126) separated from the first connection structure part (28, 31, 125), The structural portion (29, 32, 126) extends between the fastening structural portion (26, 27, 124) and the gasket groove (10, 116) and the attachment portion (22, 23, 122). 27. The heat exchanger plate (2, 96) according to claim 26, arranged to accommodate the second connecting attachment part (41, 44, 131) of). The first and second connection structure parts (28, 29, 31, 32, 125, 126) and the fastening structure parts (26, 27, 124) are the protruding parts (2) of the heat exchanger plate (2). 34, 36), said protrusion (34, 36, 127) having an upper plane (34, 36, 127) extending parallel to and above said fastening structure plane (f). 28. Heat exchanger plate (2, 96) according to claim 27, comprising an upper part (35, 37, 128) extending at t). Heat exchanger plate according to any one of claims 26 to 28, wherein the connecting structure plane (c) coincides with at least one of the lower plate extension plane (p1) and the structure extension plane (s). (2, 96). Heat transfer according to any one of claims 26 to 29, wherein the fastening structure plane (f) is arranged between the connecting structure plane (c) and the upper plate extension plane (p2). Board (2, 96). The gasket device (3, 97) according to any one of claims 1 to 16 and the fastening attachment portion (38, 39, 65-67, 89-93, 129) of the gasket device (3, 97). ) and an adhesive means applied to the kit. A gasket device (3, 97) according to any one of claims 1 to 16, a heat exchanger plate (2, 96) according to any one of claims 17 to 30, and the gasket device (3) , 97) and the fastening structure portions (26, 27, 56-58, 83) of the heat exchanger plates (2, 96). - 87, 124); and an assembly (1, 95).

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