Heat exchanger, set and method for forming the same

Abstract

Heat exchanger comprising a first heat exchanging body having a first end and an opposite second end, at least a flue gas channel and at least a water channel, a longitudinal direction of the first body extending between the first and second end thereof, and a second heat exchanging body, having a first end and an opposite second end, at least a flue gas channel and at least a water channel, a longitudinal direction of the second body extending between the first and second end thereof, wherein the first end of the second body is connected to the second end of the first body, wherein a burner chamber is provided at the first end of the first body.

1 . Heat exchanger comprising a first heat exchanging body having a first end and an opposite second end, at least a flue gas channel and at least a water channel, a longitudinal direction of the first body extending between the first and second end thereof, and a second heat exchanging body, having a first end and an opposite second end, at least a flue gas channel and at least a water channel, a longitudinal direction of the second body extending between the first and second end thereof, wherein the first end of the second body is connected to the second end of the first body, wherein a burner chamber is provided at the first end of the first body. 
     
     
         2 . Heat exchanger according to  claim 1 , wherein the at least one flue gas channel of the first body is connected to the at least one flue channel of the second body and the at least one water channel of the first body is connected to the at least one water channel of the second body. 
     
     
         3 . Heat exchanger according to  claim 1  wherein the at least one flue channel of the first body has a main flue gas direction extending substantially parallel to the longitudinal direction of the first body and wherein preferably the at least one flue channel of the second body has a main flue gas direction extending substantially parallel to the longitudinal direction of the second body. 
     
     
         4 . Heat exchanger according to  claim 1 , wherein a third heat exchanger body is provided having a first end and an opposite second end, at least a flue gas channel and at least a water channel, a longitudinal direction of the third body extending between the first and second end thereof, wherein the first end of the third body is connected to the second end of the second body, wherein the at least one flue gas channel of the second body is connected to the at least one flue channel of the third body and the at least one water channel of the second body is connected to the at least one water channel of the third body. 
     
     
         5 . Heat exchanger according to  claim 4 , wherein the second and third heat exchanger bodies are similar in shape and dimensions, preferably identical. 
     
     
         6 . Heat exchanger according to  claim 1 , wherein the burner space is provided in the first heat exchanger body. 
     
     
         7 . Heat exchanger according to  claim 1 , wherein the heat exchanger bodies have been made from light metal, especially aluminum or aluminum alloy. 
     
     
         8 . Heat exchanger according to  claim 1 , wherein the or each water channel in the first heat exchanger has an increasing cross section in said main flow direction, wherein at least one of the second and third heat exchanger body preferably has a substantially constant cross section. 
     
     
         9 . Set of a first heat exchanger body and at least one second heat exchanger body, wherein the first heat exchanger body has first coupling elements at a lower end and the or each second heat exchanger has complementary second coupling elements at an upper end, such that the or each second heat exchanger body can be coupled to the first heat exchanger body or to a second heat exchanger body at a downstream position for flue gasses. 
     
     
         10 . Set according to  claim 9 , further comprising a burner and/or a burner lid and an end piece for connecting to a flue gas exhaust, wherein an upper end of the first heat exchanger body and the burner and/or the burner lid are provided with complementary coupling elements for connecting the burner and/or the burner lid to the upper end of the first heat exchanger body and wherein the end piece is provided with second coupling elements complementary to the first coupling elements of the first heat exchanger body and wherein preferably the or each second heat exchanger body is also provided with first coupling elements, such that the end piece can be coupled to either the lower end of the first heat exchanger body or the lower end of a second heat exchanger body. 
     
     
         11 . Heating boiler comprising a heat exchanger according to  claim 1 . 
     
     
         12 . Method for forming a heat exchanger, wherein a first heat exchanger body is provided with a flue gas channel or part thereof having a main flue gas flow direction, wherein a second heat exchanger body comprising a flue gas channel or part thereof having a main flue gas flow direction, wherein the second heat exchanger body is connected at a downstream end of said first heat exchanger body. 
     
     
         13 . Method according to  claim 12 , wherein a desired capacity is defined, and wherein based on said capacity a first a first and second or a first and two second heat exchanger bodies are selected, wherein a burner is provided at a first end of the first heat exchanger and:
 when only a first heat exchanger body is selected, an end piece is connected to the opposite second end of the first heat exchanger body; or   when a first and a second heat exchanger body are selected, a first end of the second heat exchanger body is coupled to a second end of the first heat exchanger body and an end piece is connected to a second end of the second heat exchanger; or   when a first and at least two second heat exchanger bodies are selected, a first end of a first second heat exchanger body is coupled to a second end of the first heat exchanger body and a first end of a second second heat exchanger body is connected to a second end of the first second heat exchanger, and wherein an end piece is provided for connecting to a second end of the second second heat exchanger body.   
     
     
         14 . Heating boiler constructed using a set according to  claim 9 .