Pipe arrangement for a heat exchanger

Abstract

Device for a heat exchanger ( 1 ), preferably for co-operation with a gas turbine, where the heat exchanger includes flow channels and a heat emitting medium ( 6 ) flows through every alternate channel and a heat absorbing medium ( 7 ) flows through every other alternate channel. A collecting channel ( 4 ) is connected to an outlet section of a combined inlet and outlet pipe joint ( 2, 3 ) for the heat emitting and absorbing media ( 6, 7 ) via a pipe section. The pipe section has a substantially straight section ( 10, 13 ) including at least one straight sub-section where a first sub-section ( 10 ) is deformable both in its axial direction and in all directions transverse to the axial direction. A partially curved second sub-section ( 11, 21 ) is included and the pipe section has a central load-absorbing-through element ( 14 ) attached at ends ( 14 a , 14 b ) to the outer side of the pipe section. The straight section has an inlet end attached to the collection channel ( 4 ) and the second sub-section has an outlet end attached to the outlet pipe joint ( 3 ).

1 . A device for a heat exchanger ( 1 ), preferably for cooperation with a gas turbine, where said heat exchanger comprises a number of corrugated plates, where each plate has a first edge part opposite a second edge part and a third edge part opposite a fourth edge part, between the corrugated plates are provided first and second flow channels, where a heat-emitting medium ( 6 ) flows through every alternate channel and a heat-absorbing medium ( 7 ) flows through every other alternate channel, and where a collecting channel ( 4 ) for said heat emitting medium ( 7 ) is placed at one side of the heat exchanger and connected to an outlet section of an inlet and outlet pipe joint ( 2 ,  3 ) for said heat-emitting and absorbing media ( 6 ,  7 ) via a pipe section, the outlet pipe joint ( 3 ) is positioned at a distance from said side, and said pipe section has a substantially straight section ( 10 ,  13 ), comprising at least one straight sub-section where a first sub-section ( 10 ) is deformable both in its axial direction and in all directions transverse to said axial direction, and a partially curved second sub-section ( 11 ,  21 ), and the pipe section has a central load-absorbing through-element ( 14 ) attached at its ends ( 14   a ,  14   b ) to the outer side of the pipe section, whereby the straight section has an inlet end attached to the collection channel ( 4 ) and the second sub-section has an outlet end attached to the outlet pipe joint ( 3 ).  
     
     
         2 . The device for a heat exchanger as recited in  claim 1 ,wherein the second sub-section ( 11 ,  21 ) is a curved pipe section, whereby the load-absorbing element ( 14 ) is attached to the outer side of the pipe section at a point where the main axis (A) of the straight section intersects the major radius of curvature (R) of the curved pipe section.  
     
     
         3 . The device for a heat exchanger as recited in  claim 1 ,wherein the second sub-section is a T-pipe section ( 21 ), whereby the load-absorbing element ( 14 ) is attached to the outer side of a closed end ( 19 ) of the transverse section ( 22 ) of the T-pipe section at a point where the main axis (A) of the straight section intersects said closed end.  
     
     
         4 . The device for a heat exchanger as recited in  claim 3 ,wherein the T-pipe section ( 21 ) is provided with a deformable fourth section ( 18 ) adjacent its closed end ( 19 ), which section is deformable in its axial direction.  
     
     
         5 . The device for a heat exchanger as recited in  claim 1 , further comprising a straight fifth sub-section ( 13 ) positioned between the deformable first sub-section ( 10 ) and the curved second sub-section ( 11 ,  21 ).  
     
     
         6 . The device for a heat exchanger as recited in  claim 1 ,wherein the deformable first sub-section ( 10 ) is positioned between a straight fifth sub-section ( 13 ) and the curved second sub-section ( 11 ,  21 ).  
     
     
         7 . The device for a heat exchanger as recited in  claim 1 ,wherein the straight section ( 10 ,  13 ) is connected to the collection channel ( 4 ) by means of a curved third sub-section ( 12 ).  
     
     
         8 . The device for a heat exchanger as recited in  claim 1 ,wherein the straight section is positioned so that an imaginary extension of its outer periphery is radially separated from the outer periphery of the outlet pipe joint.  
     
     
         9 . The device for a heat exchanger as recited in  claim 1 , wherein the curved second section ( 11 ,  21 ) is radially connected to the outlet pipe joint ( 3 ).  
     
     
         10 . The device for a heat exchanger as recited in  claim 1 ,wherein the curved second section ( 11 ,  21 ) is tangentially connected to the outlet pipe joint ( 3 ).  
     
     
         11 . The device for a heat exchanger as recited in  claim 1 ,wherein the curved second section ( 11 ,  21 ) is connected to the outlet pipe joint ( 3 ) by a connection ( 8 ,  24 ) aimed in the principal direction of flow of the heat absorbing medium ( 7 ) through the outlet pipe joint ( 3 ).  
     
     
         12 . The device for a heat exchanger as recited in  claim 1 ,wherein the collection channel ( 4 ) is provided with a separate pipe section from each end of said collection channel to the outlet pipe joint ( 3 ).  
     
     
         13 . The device for a heat exchanger as recited in  claim 1 ,wherein the deformable first pipe section ( 10 ) has an inner diameter, corresponding to the minimum diameter of the corrugated section, equal to the inner diameter of the adjoining second section ( 2 ).