Plate heat exchanger with several modules connected by sheet-metal strips

Patent metadata

Field	Value
Publication number	US-9335102-B2
Application number	US-201313852033-A
Country	US
Kind code	B2
Filing date	Mar 28, 2013
Priority date	Mar 29, 2012
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

The invention describes a plate heat exchanger 1 comprising two modules 1 a and 1 b . The two modules 1 a and 1 b are cuboidal and in each case are closed off to the outside by cover sheets 5 . The two modules 1 a and 1 b are arranged such that cover sheets 9 a and 9 b of the same size are directly adjacent. The two cover sheets 9 a and 9 b form the contact surface between the two modules 1 a and 1 b of the plate heat exchanger 1 . The two contact surfaces 9 a and 9 b are joined to one another via a suitable adhesive.

First claim

The invention claimed is:

1. A plate heat exchanger ( 1 ) comprising:
at least two modules ( 1 a , 1 b ), wherein each module ( 1 a , 1 b ) has a plurality of stacked passages ( 3 ) through which heat-exchanging media can flow in alternation and which are separated from one another by partitions ( 4 ),
said modules ( 1 a , 1 b ) are each of cuboidal shape and are bordered on the outsides by cover sheets ( 5 ),
said modules ( 1 a , 1 b ) are arranged next to one another such that one rectangular side ( 9 a ) of one cuboidal module ( 1 a ) of said at least two modules is directly adjacent to a corresponding rectangular side ( 9 b ) of another cuboidal module ( 1 b ) of said at least two modules,
each of modules having fittings ( 6 ) for supplying and discharging heat-exchanging media (A, B, C, D, E) and headers ( 7 ) for distributing and collecting heat-exchanging media (A, B, C, D, E) to the individual passages ( 3 ) or from the individual passages ( 3 ), and wherein at least two modules ( 1 a , 1 b ) have a common ( 7 ) header, and
each of two cover sheets ( 5 ) that each form directly adjacent sides ( 9 a , 9 b ) of two adjacent modules ( 1 a , 1 b ) form a contact surface ( 9 a , 9 b ) and these contact surfaces ( 9 a , 9 b ) are joined to one another, so that a mechanical and heat-conductive connection is formed between the two adjacent modules ( 1 a , 1 b ), via a plurality of separate and individual sheet-metal strips ( 10 ), each of said sheet-metal strips having two opposing faces wherein one of said opposing faces is joined via adhesive to the cover sheet ( 5 ) of one of said two adjacent modules ( 1 a , 1 b ) and the other of said opposing faces is joined via adhesive to the cover sheet ( 5 ) of the other of said two adjacent modules ( 1 a , 1 b ), and wherein said plurality of said sheet-metal strips ( 10 ) is arranged regularly on at least one of said contact surfaces ( 9 a , 9 b ) such that the entire surface ( 9 a , 9 b ) of said at least one of said contact surfaces ( 9 a , 9 b ) is covered by said sheet-metal strips ( 10 ) free of gaps.

2. The plate heat exchanger according to claim 1 , wherein all of said sheet-metal strips ( 10 ) joined both of said contact surfaces ( 9 a , 9 b ) have the same width.

3. The plate heat exchanger according to claim 1 , wherein the length of said at least one sheet-metal strips ( 10 ), joined to said contact surfaces ( 9 a , 9 b ), corresponds to one side length of one of said two cover sheets ( 5 ).

4. The plate heat exchanger according to claim 3 , wherein all of said sheet-metal strips ( 10 ) joined to one of said contact surfaces ( 9 a , 9 b ) have the same width.

5. The plate heat exchanger according to claim 1 , wherein the passages of the modules are filled with fins such that the heat-exchanging media can flow transversely to the direction of the undulation through the passages.

6. The plate heat exchanger according to claim 5 , wherein the length of said at least one sheet-metal strips ( 10 ), joined to one of said contact surfaces ( 9 a , 9 b ), corresponds to one side length of one of said two cover sheets ( 5 ).

7. A method for producing a plate heat exchanger ( 1 ) according to of claim 1 , comprising joining the cover sheet ( 5 ) of at least one module ( 1 a , 1 b ) to the cover sheet ( 5 ) of another module ( 1 a , 1 b ) to one another so that a mechanical and heat-conductive connection is formed between the two adjacent modules ( 1 a , 1 b ), wherein said plurality of sheet-metal strips ( 10 ) are joined via adhesive to the cover sheet ( 5 ) of one of said two adjacent modules ( 1 a , 1 b ) and via adhesive to the cover sheet ( 5 ) of the other of said two adjacent modules ( 1 a , 1 b ), and wherein said plurality of said sheet-metal strips ( 10 ) is arranged regularly on at least one of said contact surfaces ( 9 a , 9 b ) such that the entire surface ( 9 a , 9 b ) of said at least one of said contact surfaces ( 9 a , 9 b ) is covered by said sheet-metal strips ( 10 ) free of gaps.

Assignees

• Linde Ag

Inventors

• Dietrich Jorg
• Holzl Reinhold

Classifications

• F28F3/08

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

• F25J2290/50

  Arrangement of multiple equipments fulfilling the same process step in parallel · CPC title

• F25J2290/42

  Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box · CPC title

• F25J5/002

  for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger · CPC title

• F28F9/26

  Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators (connecting different sections in water heaters F24H9/14 {, connecting headers with inlet or outlet fittings F28F9/0246}) · CPC title