Plate heat exchanger with flanged base or connecting plate

Patent metadata

Field	Value
Publication number	US-9863715-B2
Application number	US-201214238199-A
Country	US
Kind code	B2
Filing date	Jul 27, 2012
Priority date	Aug 11, 2011
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A plate heat exchanger may include a plurality of stacked plates, each formed of flat troughs fitted into each other having substantially flat bottoms and connected at respective trough edges. The plurality of plates may separate first and second chambers from one another which are arranged alternately succeeding within the plate stack formed by the troughs. A first fluid may flow in parallel through the first chambers connected in parallel via associated openings in the plates, and a second fluid flow may flow in parallel through the second chambers connected in parallel via associated second openings. The plate heat exchanger may include a base plate for holding an end face of the plate stack. The base plate may be arranged on the end face of the plate stack, the end face formed by a convex side of a plate. The plate heat exchanger may include a flange.

First claim

The invention claimed is:

1. A plate heat exchanger, comprising:
a plurality of stacked plates, each formed of flat troughs fitted into each other having substantially flat bottoms and connected at respective trough edges, the plurality of plates separating first and second chambers from one another arranged alternately succeeding within the plate stack formed by said troughs, wherein a first fluid flows in parallel through the first chambers connected in parallel via associated openings in the plates, and a second fluid flows in parallel through the second chambers connected in parallel via associated second openings;
a base plate for holding an end face of the plate stack, the base plate arranged on the end face of the plate stack defined by a convex side of a plate, wherein the base plate is a formed shaped sheet material providing a receptacle for the plurality of plates, the receptacle having a bed that rests against at least one of a bottom edge and a trough edge of the plate at the end face; and
a flange surrounding the bed and having a flange surface circumferentially bent at an inner edge facing towards the plate stack and at a free outer edge, wherein the flange has a U-shaped cross section defined by the inner edge and the free outer edge extending at an angle away from the flange surface, and wherein the flange includes fastening holes disposed in the flange surface between the inner edge and the free outer edge;
wherein the inner edge defines a wall surface facing towards the receptacle and mounted against the trough edge of the plate at the end face of the plate stack; and
wherein the flange surface having the fastening holes lies on a plane that is elevated with respect to a plane of the bed.

2. The plate heat exchanger according to claim 1 , wherein the bed and the inner edge of the flange defining the wall surface together form-fittingly engage the bottom edge and the trough edge of the plate at the end face.

3. The plate heat exchanger according to claim 1 , wherein the base plate is configured as an integral moulded part with the flange.

4. The plate heat exchanger according to claim 3 , wherein the flange transitions at the inner edge directly from the flange surface into the bed, and wherein the flange terminates at the outer edge.

5. The plate heat exchanger according to claim 1 , wherein the base plate engages at least one edge region of the trough bottom of the plate at the end face of the plate stack, the base plate including openings in the at least one edge region for fluid connections of the plate heat exchanger.

6. The plate heat exchanger according to claim 1 , wherein the flange surface having the fastening holes defines a U-base of the U-shaped cross section of the flange that lies on the plane elevated with respect to the plane of the bed, and wherein the flange surface has a maximum extent at the fastening holes.

7. The plate heat exchanger according to claim 1 , wherein the first fluid is water and the second fluid is oil.

8. The plate heat exchanger according to claim 1 , wherein the shaped sheet material of the base plate is a shaped sheet metal.

9. The plate heat exchanger according to claim 1 , wherein the bed has an elongated recess defining a through-opening in a central region of the base plate, and wherein the bed terminates at a marginal edge of the elongated recess in the central region of the base plate.

10. The plate heat exchanger according to claim 9 , wherein the base plate further includes a plurality of flow openings disposed in the bed between the marginal edge of the elongated recess and the inner edge of the flange.

11. The plate heat exchanger according to claim 9 , wherein the base plate is secured to the end face at a joined connection between the marginal edge of the elongated recess and at least the bottom edge of the plate at the end face of the plate stack.

12. The plate heat exchanger according to claim 1 , wherein the flange surface extends along the plane in a shape of an elongated octagon with respect to a plan view of the base plate.

13. The plate heat exchanger according to claim 2 , wherein the bed further includes a recess and at least one opening disposed at opposite ends between the recess and the inner edge of the flange.

Assignees

• Gruener Andreas
• Schupp Clemens
• Mahle Int Gmbh

Inventors

• Gruener Andreas
• Schupp Clemens

Classifications

• F28F9/02 Primary

  Header boxes; End plates · CPC title

• F28F3/08 Primary

  Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning · CPC title

• F28D9/005

  the plates having openings therein for both heat-exchange media · CPC title