Inlet arrangement

Abstract

An inlet arrangement ( 1 ) for use in plate heat exchangers ( 2 ) is disclosed. The arrangement comprises an element with a dispersion opening ( 6 ) for arrangement in an inlet ( 5 ) in a plate exchanger. The inlet arrangement ( 1 ) is arranged to form a mainly fitting cylinder wall when introduced in the inlet ( 5 ). The cylinder wall comprises at least one opening ( 6 ) which extends partly or fully along the length of the inlet ( 5 ) and is sealingly arranged towards the inlet ( 5 ) of the plate heat exchanger. Furthermore, the opening ( 6 ) is oriented towards one side at an angle from the perpendicular. The use of such inlet arrangement ( 1 ) is also disclosed.

1 . An inlet arrangement ( 1 ) for use in plate heat exchangers ( 2 ) wherein the inlet arrangement ( 1 ) is arranged to form a_mainly fitting cylinder wall when introduced in the inlet ( 5 ), the inlet arrangement ( 1 ) comprises a tubular element with at least one dispersion opening( 6 ), the tubular element being arranged in an inlet ( 5 ) in a plate exchanger,
 wherein the cylinder wall of the tubular element comprises at least one longitudinal opening ( 6 ) which extends along a length of the said inlet( 5 ), sealingly arranged towards the inlet of each channel of the plate heat exchanger, and which is oriented towards one side at an angle from the perpendicular, thereby creating a liquid surface at the lower part of the inlet channel in the exchanger so that gas and liquid is distributed evenly through all the ducts of the exchanger.   
     
     
         2 . An inlet arrangement ( 1 ) according to  claim 1 , wherein the inlet arrangement ( 1 ) has a sharp edge along the opening. 
     
     
         3 . An inlet arrangement ( 1 ) according to  claim 1 , wherein the opening(s) ( 6 ) are oriented at an angle which is larger than 20° in relation to the perpendicular. 
     
     
         4 . An inlet arrangement ( 1 ) according to  claim 1 , wherein the inlet arrangement is made in a resilient material in the form of at least one plate or at least one cylinder wall with at least one opening ( 6 ). 
     
     
         5 . An inlet arrangement ( 1 ) according to  claim 1 , wherein the diameter of the inlet arrangement ( 1 ) is smaller than the diameter of the inlet ( 5 ). 
     
     
         6 . An inlet arrangement according to  claim 1 , wherein the inlet arrangement comprises two plates or cylinder walls ( 1 , 7 ) concentrically arranged so that their mutual orientation can be adjusted to vary the size of the opening(s) ( 6 ). 
     
     
         7 . An inlet arrangement according to  claim 5 , wherein the plates or cylinder walls ( 1 , 7 ) are controlled in relation to each other by a control arrangement operated by a control unit. 
     
     
         8 . An inlet arrangement according to  claim 1 , wherein the opening ( 6 ) is a longitudinal slot ( 6 ). 
     
     
         9 . An inlet arrangement according to  claim 7 , wherein the edge of the slot ( 6 ) is provided with triangular recesses ( 10 ). 
     
     
         10 . An inlet arrangement according to  claim 7 , wherein the slot ( 6 ) forms a narrowing passage inwards from the inlet ( 5 ) of the heat exchanger. 
     
     
         11 . The use of an inlet arrangement ( 1 ) according to  claim 1  in a plate heat exchanger used as a desorber and/or absorber. 
     
     
         12 . The use of an inlet arrangement ( 1 ) according to  claim 11  in a plate heat exchanger where the inlet arrangement ( 1 ) is arranged in the inlet ( 5 ) of the plate heat exchanger subsequent to the assembly of the heat exchanger. 
     
     
         13 . The use of an inlet arrangement ( 1 ) according to  claim 1  in a plate heat exchanger, where the plate exchanger with the inlet arrangement ( 1 ) is inclined in relation to a vertical plane. 
     
     
         14 . The use according to  claim 13 , wherein the plate heat exchanger with the inlet arrangement ( 1 ) is oriented at an angle of between 88° and 92° in relation to a horizontal plane. 
     
     
         15 . The use according to  claim 13 , wherein the orientation of the plate heat exchanger ( 2 ) is controlled by means of a suitable regulator with an associated servomotor.