Plate heat exchanger

Abstract

The invention relates to a plate heat exchanger ( 1 ) including a first and second end plate ( 2, 3 ), and a core of heat exchanger plates ( 4 ) arranged between the first and second end plate ( 2, 3 ), whereby a plurality of threaded tightening bolts ( 5 a, 5 b, 5 c ) extend between the first and second end plate ( 2, 3 ) and are arranged, with the aid of nuts ( 6 ) or the like, to hold these plates at a desired distance from each other in order to hold the core of heat exchanger plates together, wherein at least one guiding element ( 7, 7 a, 7 b ) for guiding the first end plate ( 2 ) and the heat exchanger plates ( 4 ) relatively the second end plate ( 3 ) is releasably arranged on at least one of the threaded tightening bolts ( 5 a, 5 b ), which guiding element ( 7 a ) extends through an aperture ( 8 ) in the first end plate ( 2 ), where the at least one guiding element ( 7 a, 7 b ) is provided with a through-hole ( 9 ) to receive the at least one of the threaded tightening bolts ( 5 a, 5 b ) and an external geometry ( 10 ) corresponding to a cut-out ( 11 ) of the heat exchanger plates ( 4 ) and the first end plate ( 2 ).

1 . A plate heat exchanger comprising first and second end plates, and a core of heat exchanger plates arranged between the first and second end plates, whereby a plurality of threaded tightening bolts extend between the first and second end plates and are arranged, together with nuts, to hold the end plates at a desired distance from each other in order to hold the core of heat exchanger plates together, wherein at least one guiding element for guiding the first end plate and the heat exchanger plates relatively relative to the second end plate is releasably arranged on at least one of the threaded tightening bolts, which guiding element extends through an aperture in the first end plate, and wherein the at least one guiding element is provided with a through-hole to receive the at least one of the threaded tightening bolts and the at least one guiding element has an external geometry corresponding to a cut-out of the heat exchanger plates and the first end plate. 
     
     
         2 . The plate heat exchanger according to  claim 1 , wherein the plate heat exchanger includes two guiding elements, the first guiding element being arranged in an upper portion of the plate heat exchanger and the second guiding element being arranged in a lower portion of the plate heat exchanger. 
     
     
         3 . The plate heat exchanger according to  claim 2 , wherein the first and second guiding elements have an identical cross section profile. 
     
     
         4 . The plate heat exchanger according to  claim 2  or  claim 3 , wherein the second guiding element further is provided with a guiding rail for movably receiving the second guiding element. 
     
     
         5 . The plate heat exchanger according to  claim 4 , wherein the guiding rail for movably receiving the second guiding element is fully or partially supported by the ground. 
     
     
         6 . The plate heat exchanger according to  claim 1 , wherein the at least one guiding element includes two separate parts. 
     
     
         7 . The plate heat exchanger according to  claim 4 , wherein the guiding elements and the guiding rail are made of an extrudable material. 
     
     
         8 . The plate heat exchanger according to  claim 1 , wherein the at least one guiding element is movable along the tightening bolts and where one part of the guiding element is removable as the heat exchanger plates are tightened together by the first end plate to form the plate heat exchanger, and where subsequently the removed one part of the guiding element can be arranged on a free portion of the tightening bolt outside the first end plate. 
     
     
         9 . The plate heat exchanger according to  claim 1 , wherein a supporting device is releasably arranged at a distance from the first end plate at the end of the at least one tightening bolt, and extends between two of the tightening bolts. 
     
     
         10 . A plate heat exchanger comprising first and second end plates, and a core of heat exchanger plates arranged between the first and second end plates, whereby a plurality of threaded tightening bolts extend between the first and second end plates and are arranged, together with nuts, to hold the end plates at a desired distance from each other in order to hold the core of heat exchanger plates together, wherein at least one guiding element for guiding the first end plate and the heat exchanger plates relative to the second end plate is releasably arranged on at least one of the threaded tightening bolts, which guiding element extends through an aperture in the first end plate, and wherein the heat exchanger plates rest on the at least one guiding element and where the first end plate rests on a guiding rail, upon which guiding rail the at least one guiding element is movably received. 
     
     
         11 . The plate heat exchanger according to  claim 10 , wherein an upper located guiding element only guides the heat exchanger plates and the first end plate.