GB2069680A

GB2069680A - Bank of plates with channel for fluids

Info

Publication number: GB2069680A
Application number: GB8004568A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1980-02-12
Filing date: 1980-02-12
Publication date: 1981-08-26
Also published as: DE3007525C2; FR2480927A1; GB2069680B; SE436928B; AU5585980A; SE8001776L; DE3007525A1; FR2480927B1

Abstract

In apparatus comprising a pack of plates 1 wherein between each adjacent pair of plates is formed a fluid channel (4, Fig. 1), bounded by an elastic sealing member 3 extending between said pair of plates, means for releasably securing the sealing member 3 to one of the plates of each adjacent pair, comprises fastening members 5 extending from the plate or from the sealing member and being received with an interference fit in a corresponding hole in the sealing member or the plate respectively. The invention may be used in filters and heat exchangers and is especially well suited for use in sectional plate-type heat exchangers. <IMAGE>

Description

SPECIFICATION Bank of plates with channel for fluids According to the invention there is provided bank of plates with a channel for fluids comprises plates with apertures for the fluids to pass therethrough; elastic sealing members bounding the channel for fluids; fastening members serving to fasten said elastic sealing members to said plates and mating holes, said fastening members being received in said holes with an interference.

Such a construction of a bank of plates cuts down the labour required for its manufacture as against the prior art constructions and also simplifies the procedure of dismantling the bank of plates to replace failed elastic sealing members and to clean the surface of plates.

The simplest from of the fastening members is that of projections or lugs on the elastic sealing members; mating holes wherein said lugs are received with an interference must be provided in this case in the plates. It is advisable that both the lugs on the elastic sealing members and the mating holes in the plates are cylindrical.

To augment the strength of fastening of the elastic sealing members to the plates and to simplify their manufacture, it is advisable that the fastening members be projections or lugs on the plates and the mating blind holes be provided in the elastic sealing members. It is most simple that said fastening members and mating holes be also cylindrical.

To upgrade the dependability of hermetically sealing the working spaces, it is useful that the fastening members and mating holes be disposed lengthwise.

To improve the strength of fastening, it is appropriate that the lugs on the plates have the form of tabs which may be cut out and bent on every plate.

To simplify the manufacturing procedure, it is expedient that the lugs in the plates be stamped integral with the plate.

To upgrade both the strength and dependability of fastening of the elastic sealing members to the plates, the fastening members most preferably have the form of pins or keys.

It is advisable that the pins and keys have blind holes making it possible to expand the pins or keys and thereby to additionally strengthen their fastening to the plates.

The provision of the fastening members in the form of pins or keys simplifies the dismantling and repair of a bank of plates.

Such fastening members may be stamped of nonmetallic (e.g. polymeric) materials, whicn upgrades their dependability, extends their service life, and cuts down the cdst of their manufacture and hence also of the manufacture of the banks of plates as a whole.

The highest strength and dependability of fastening of the elastic sealing members to the plates is provided by fastening members having thickened portions or bulges at their ends and "Christmas-tree" ridges at their side surfaces. The bulges and ridges most preferably have sharp edges around the periphery.

The exact nature of the invention will now be explained by way of a detailed description of particular embodiments thereof with reference to the accompanying drawings. wherein: Figure 1 is a fragmentary sectional view of a bank of plates with a channel for fluids, according to the invention; Figure 2 is a sectional view of a fragment of a plate with an elastic sealing member fastened thereto; Figure 3 is a sectional view of a modification of the plate (fragment), of the elastic sealing member, and of a fastening member which is a cylindrical lug on the elastic sealing member, in a diassembled state; Figure 4 is a sectional view of a modification of the plate (fragment), of the elastic sealing member, and of the fastening member which is a cylindrical lug, with a bulged end, on the elastic sealing member, in a disassembled state;; Figure 5 is a sectional view of a modification of the plate (fragment), of the elastic sealing member, and of the fastening member which is a cylindrical or lengthwise lug on the plate, in a disassembled state; Figure 6 is a sectional view of a modification of the fastening member which is a cylindrical or lengthwise lug, with a bulged end, on a plate; Figure 7 is a sectional view of a modification of the fastening member which is a tab cut out and bent on a plate; Figure 8 is a sectional view of still another modification of the fastening member which is a tab cut out and bent on a plate and received in a mating hole provided in an elastic sealing member; Figure 9 is a sectional view of a modification of the fastening member stamped integral with a plate; Figure 10 is a sectional view of another modification of the fastening member stamped integral with a plate;; Figure ii is a sectional view of a modification of the plate (fragment), of the elastic sealing member, and of the fastening member which is a pin or key having a bulge with a sharp edge around the periphery; Figure 12 is a sectional view of still another modification of the fastening member which is a pin or key with a blind hole; Figure 13 is a sectional view of a modification of the plate (fragment), of the elastic sealing member, and of the fastening member with bulges at its both ends, in a disassembled state; Figure 14 is a sectional view of still another modification of the fastening member with "Christsnas-tree" ridges provided over its en tire height and having sharp edges around the periphery;; Figure 15 is a sectional view of still another modification of the plate (fragment) with a lengthwise fastening member having a side lug and an elastic sealing member (fragment) with a mating hole, in a disassembled state; Figure 16 is a general view of a plate bank assembly installed between the clamping end members and clamped by tie bolts.

Particular embodiments of the invention will now be described with reference to the ac companying drawings.

Referring to Fig. 1, a bank of plates with a channel for fluids comprises plates 1 provided with apertures 2, for fluids to pass therethrough elastic sealing members 3 bounding a channel 4 for fluids, and fastening members 5 serving to fasten the elastic sealing members 3 to the plates 1. The fastening members 5 are received with an interference in mating holes 6 which may be provided either in the plate 1 (Figs. 3,4,11 ,1 3) or in the elastic sealing member 3 (Figs. 5,8,11,13,15).

Fig 2 shows in section a fragment of the plate 1 with the elastic sealing member 3 fastened thereto by means of the fastening member 5 which may have the form described hereinafter.

Fig. 3 shows in section a modification of the plate 1 (fragment), of the elastic sealing member 3, and of a fastening member 5 which is a cylindrical lug on the elastic sealing member 3. This is the simplest modification of the fastening member.

Fig. 4 shows in section a modification of the plate 1 (fragment), of the elastic sealing member 3, and of the fastening member 5 which is a cylindrical lug with a bulged end on the elastic sealing member 3, the plate 1 and the member 3 being shown disassembled from each other. This modification offers a higher strength of fastening of the elastic sealing member 3 to the plate 1.

Fig. 5 shows in section a modification of the plate 1 (fragment), of the elastic sealing member 3, and of the fastening member 5 which is a cylindrical or lengthwise lug on the plate 1, the plate 1 and the member 3 being shown disassembled from each other. This modification offers a higher stability of the elastic sealing member 3 in operation.

Fig. 6 shows insection a modification of the fastening member 5 which has the form of a cylindrical or lengthwise lug with a bulged end on the plate 1. This modification offers a higher strength and dependability of fastening of the elastic sealing member 3 to the plate 1.

Fig. 7 shows in section a modification of the fastening member which is a tab cut out and bent on every plate 1. In addition to a higher strength of fastening of the elastic sealing members 3 to the plate 1, this modification simplifies the manufacture of the fastening members 5.

Fig. 8 shows in section still another modifi cation of the fastening member 5 which is a tab cut out and bent on the plate 1 and is received in the mating hole in the elastic sealing member 3. This modification differs from that shown in Fig. 7 by a stronger and more dependable fastening of the elastic seal ing member 3 to the plate 1.

Fig. 9 shows in section a modification of the fastening member 5 which is stamped integral with the plate 1. This modification offers a much better suitability of the plates 1 with the fastening members 5 for industrial production as against that of the above-de I scribed modifications.

Fig. 10 shows in section still another modi fication of the fastening member 5 which is stamped integral with the plate 1 and has a bulge at its end. This modification offers a higher strength of fastening of the elastic sealing member 3 to the plate 1.

Fig. 11 shows in section a modification of the plate 1 (fragment), of the elastic sealing member 3, and of the fastening member 5 which is a pin or key with a bulge at its end, the bulge having a sharp edge around the periphery. This modification offers high strength and dependability of fastening of the elastic sealing members 3 to the plates 1 and also simplifies the procedure of assembling the bank of the plates 1. In addition, the fastening members 5 in the form of pins and keys may be stamped of nonmetallic (e.g.

polymeric) materials, which upgrades their de pendability, extends their service life, and cuts down the cost of their manufacture and hence also of the manufacture of the banks of plates as a whole.

Fig. 1 2 shows in section still another modi fication of the fastening member 5 which is a pin or key with a blind hole in its end fitted into the plate 1. This modification allows an added strength of fastening of the pins and keys to the plates 1 to be attained through expanding their ends with the holes 7.

Fig. 1 3 shows in section a modification of the plate 1 (fragment), of the elastic sealing member 3, and of the fastening member 5 which has bulges at its both ends, the compo nents being shown disassembled. The width - of a hole 6 in the plate 1 is preferably less than that of the top bulge on the fastening member 5; this will allow a complete dis mantling of the bank of plates to be easily accomplished. The modification of shown in Fig. 1 3 offers a simplicity of assembling and dismantling the bank of plates.

Fig. 14 shows in section still another modi fication of the fastening member 5 which is provided over its entire height with "Christ mas-tree" ridges having sharp edges around their periphery. This modification offers the highset strength and dependability of fasten ing of the elastic sealing members 3 to the plates 1.

Fig. 1 5 shows in section still another modification of the plate 1 (fragment) whereon a lengthwise fastening member 5 with a side lug is provided and the elastic sealing member 3 (fragment) with the mating holes, the plate 1 and the member 3 being shown disassembled from each other. This modification as well offers high strength and dependability of fastening of the elastic sealing members 3 to the plates 1.

Fig 1 6 shows the general view of a plate bank assembly installed between end members 8 and clamped by tie bolts 9. The end members 8 are provided with an inlet nozzle 10 and an outlet nozzle 11. Such a bank of plates may serve as a plate-type heat-exchanger.

The proposed bank of plates with a channel for fluids, when used in a plate-type heat exchanger, functions as follows.

The plates 1 are assembled into a bank, installed between the end members 8, and clamped by the tie bolts 9 (Fig. 16). A heatcarrying fluid fed into the inlet nozzle 10 passes through apertures 2 (Fig. 1), enters the channels 4, and flows out through the outlet nozzle 11. While passing through the channels 4, the fluid transfers its thermal energy to the plates 1.

As compared to the prior art constructions of the banks of plates, wherein the elastic sealing members are fastened to the plates with the aid of adhesives, the proposed construction is much more simple. This cuts down the labour required to manufacture the bank and hence also its manufacturing cost, and simplifies dismantling the bank to replace failed elastic sealing members and to clean the plate surfaces. The proposed construction offers also a high durability and dependability of fastening of the elastic sealing members to the plates.

While the invention has been described hereinbefore in terms of the preferred embodiments thereof, it will be apparent to those skilled in the art that the invention may be variously otherwise embodied without departing from the spirit and scope thereof as defined in the following claims.

Claims

1. A bank of plates with a channel for fluids, comprising plates with apertures to pass the fluids therethrough; elastic sealing members bounding the channel for fluids; fastening members serving to fasten said elastic sealing members to said plates and mating holes, said fastening members being received in said holes with an interference.

2. A bank of plates in accordance with claim 1, wherein the fastening members are lugs on the elastic sealing members and the mating hles are disposed in the plates.

3. A bank of plates in accordance with claim 1 or 2, wherein the fastening members and the mating holes are cylindrical.

4. A bank of plates in accordance with claim 1, wherein the fastening members are lugs on the plates and blind mating holes are provided in the elastic sealing members.

5. A bank of plates in accordance with claim 4, wherein said lugs and mating holes are cylindrical.

6. A bank of plates in accordance with claim 4, wherein said lugs and mating holes are lengthwise.

7. A bank of plates in accordance with claim 4, wherein said lugs are stamped integral with a plate.

8. A bank of plates in accordance with claim 4, wherein said lugs are tabs.

9. A bank of plates in accordance with claim 8, wherein said tabs are cut out and bent on every plate.

1 0. A bank of plates in accordance with claim 1, wherein the fastening members are pins.

11. A bank of plates in accordance with claim 1, wherein the fastening members are keys.

1 2. A bank of plates in accordance with claim 10 or 11, wherein the fastening members are provided with blind holes.

1 3. A bank of plates in accordance with any one of claims 1 through 12, wherein the fastening members have a bulge at the end.

14. A bank of plates in accordance with claim 13, wherein said bulges have a sharp edge around the periphery.

1 5. A bank of plates in accordance with claim 1 or with any one of claims 4 through 12, wherein "Christmas-tree" ridges are provided on the side surfaces of the fastening members over the entire height thereof.

1 6. A bank of plates in accordance with claim 15, wherein said ridges have sharp edges around the periphery.

17. A bank of plates substantially as here it before described with reference to and as shown in the accompanying drawings.