Heat exchanger
AssigneeInter-Gas Heating Assets B.V.
InventorPeter Jan Cool
Life of this patent
Estimating the term…
Abstract
A heat exchanger is manufactured from a single piece of heat-conducting material and comprises fins for guiding a fluid and for transferring heat between the fluid and the heat exchanger, wherein between the fins are provided transverse fins which extend in a direction substantially transversely of the fins over a distance which is less than the distance between the fins and in a direction substantially transversely of the flow direction of the fluid, wherein the transverse fins are arranged alternately close to or on mutually adjacent fins in order to cause a fluid flowing between the fins to follow a meandering path between the fins, wherein the lateral direction lies substantially perpendicularly of the fins.
Claims9
A heat exchanger which is manufactured from a single piece of heat-conducting material, comprising fins configured for guiding a fluid in a flow direction from a burner or group of burners arranged close to the heat exchanger at one end thereof to an opposite end where combustion gases leave the heat exchanger, and for transferring heat between the fluid and the heat exchanger, wherein between the fins are provided transverse fins which extend in a direction substantially transversely of the fins over a distance which is less than the distance between the fins and in a direction substantially transversely of the flow direction of the fluid, wherein the transverse fins are arranged alternately close to or on mutually adjacent fins in order to cause a fluid flowing between the fins to follow a meandering path between the fins, wherein the transverse direction lies substantially perpendicular to the fins.
A method for manufacturing a heat exchanger, comprising of:
- providing a mould for manufacturing a heat exchanger from a single piece of heat-conducting material, wherein the mould at least comprises:
- an opening for receiving a feed of a conduit for casting in for the purpose of guiding a fluid, and
- an opening for receiving a discharge of a conduit for casting in for the purpose of guiding a fluid, and
- wherein the mould comprises recesses for integral forming of fins on the heat exchanger, and wherein the recesses for the fins are likewise provided with recesses for forming transverse fins on or close to the fins such that the transverse fins extend in a direction substantially transversely of the fins, over a distance which is less than the distance between the fins and in a direction substantially transversely of the anticipated flow direction of the fluid to be allowed to flow between the fins for forming, wherein said flow direction is directed from a burner or group of burners arranged close to the heat exchanger at one end thereof to an opposite end where combustion gases leave the heat exchanger, wherein the transverse fins are arranged alternately close to or on fins for mutually adjacent forming in order to cause a fluid flowing between the fins for forming to follow a meandering path between the fins, wherein the transverse direction lies substantially perpendicular to the fins;
- arranging a conduit for guiding a fluid in the mould, wherein the feed of the conduit is received by the opening in the mould for the feed, and the discharge of the conduit is received by the opening in the mould for the discharge;
- arranging a removable, substantially incompressible core in the conduit for the fluid;
- filling the mould with at least one heat-conducting material or a material which can at least be converted in the mould to a heat-conducting material;
- treating the filling of the mould in order to obtain a heat exchanger from a single piece of heat-conducting material;
- removing the mould from the heat exchanger;
- and
- removing the core from the conduit for the fluid.
Dependencies are inferred from the claim text.