Plate Heat Exchanger With Auxiliary Fluid Circuit

Abstract

A plate heat exchanger comprising a first fluid (cooling media) supply channel and a first fluid discharge channel arranged though a heat plate package; with at least one second fluid (hot media) supply channel and at least one second fluid discharge channel also arranged through the heat plate package. The plate heat exchanger further comprises the addition of one or more auxiliary fluid heat exchange circuits including a conduit heat exchanger adapted to fit inside either the first fluid supply or discharge channels when acting as an after cooler, or the second fluid supply or discharge channel when acting as a pre-heater.

1 . A plate heat exchanger comprising
 a plurality of heat exchange plates including two end plates;   a first liquid supply port through one of the end plates and in communication with a first liquid supply channel through the plurality of heat exchange plates;   a first liquid discharge port connected through one of the end plates and in communication with a first liquid discharge channel through the plurality of plates;   at least one second liquid supply port connected through one of the end plates and in communication with a second liquid supply channel through the plurality of plates;   at least one second liquid discharge port connected through one of the end plates and in communication with a second liquid discharge channel through the plurality of plates; and   a conduit heat exchanger fixedly connected to one of the end plates and in communication with either the first fluid supply channel, the first fluid discharge channel, the second fluid supply channel, or the second fluid discharge channel, the conduit heat exchanger further comprising;   a conduit having a supply and return;   a flange for fixedly connecting to a port on the end plate;   a supply connection extending outwardly from the flange and in communication through the flange with the supply of the conduit; and   a return connection extending outwardly from the flange and in communication through the flange with the return of the conduit.   
   
   
       2 . The plate heat exchanger of  claim 1  wherein the conduit extends from the flange into the first liquid discharge channel, the first liquid supply channel, the second liquid discharge channel, or the second liquid supply channel. 
   
   
       3 . The plate heat exchanger of  claim 1  wherein the conduit heat exchanger cools a fluid flowing through the conduit. 
   
   
       4 . The plate heat exchanger of  claim 1  wherein the conduit heat exchanger warms a fluid flowing through the conduit. 
   
   
       5 . The plate heat exchanger of  claim 1  further comprising a pipe connected to either the first liquid discharge port, the first liquid supply port, the second liquid discharge port, or the second liquid supply port, wherein the conduit heat exchanger is connected to the pipe. 
   
   
       6 . The plate heat exchanger of  claim 5  further comprising a strainer connected to the pipe, wherein the conduit heat exchanger is connected to the strainer. 
   
   
       7 . The plate heat exchanger of  claim 5  wherein the conduit extends through the pipe but not into either the first liquid discharge channel, the first liquid supply channel, the second liquid discharge channel, or the second liquid supply channel. 
   
   
       8 . The plate heat exchanger of  claim 5  wherein the conduit heat exchange cools a fluid flowing through the conduit. 
   
   
       9 . The plate heat exchanger of  claim 5  wherein the conduit heat exchange warms a fluid flowing through the conduit. 
   
   
       10 . A plate heat exchanger comprising
 a plurality of heat exchange plates including two end plates;   a first liquid supply port through one of the end plates and in communication with a first liquid supply channel through the plurality of heat exchange plates;   a first liquid discharge port connected through one of the end plates and in communication with a first liquid discharge channel through the plurality of plates;   at least one second liquid supply port connected through one of the end plates and in communication with a second liquid supply channel through the plurality of plates;   at least one second liquid discharge port connected through one of the end plates and in communication with a second liquid discharge channel through the plurality of plates;   an end plate port through one of the end plates, the end plate port being in communication with either the first liquid discharge channel, the first liquid supply channel, the second liquid discharge channel, or the second liquid supply channel; and   a conduit heat exchanger fixedly connected to the end plate port, the conduit heat exchanger further comprising;
 a conduit having a supply and return; 
 a flange for fixedly connecting to a port on the end plate; 
 a supply connection extending outwardly from the flange and in communication through the flange with the supply of the conduit; and 
 a return connection extending outwardly from the flange and in communication through the flange with the return of the conduit. 
   
   
   
       11 . The plate heat exchanger of  claim 10  wherein the conduit heat exchange cools a fluid flowing through the conduit. 
   
   
       12 . The plate heat exchanger of  claim 10  wherein the conduit heat exchange warms a fluid flowing through the conduit. 
   
   
       13 . The plate heat exchanger of  claims 10  wherein the conduit heat exchanger further comprises a sacrificial anode. 
   
   
       14 . The plate heat exchanger of  claim 10  wherein the conduit and flange are comprised of titanium, copper-nickel alloy, stainless steel, bronze, or alloy C-276. 
   
   
       15 . The plate heat exchanger of either  claim 10  wherein a fluid flows through the conduit, the fluid servicing a ship's propulsion equipment. 
   
   
       16 . The plate heat exchanger of either  claim 10  wherein a fluid flows through the conduit, the fluid servicing a ship's maneuvering equipment. 
   
   
       17 . The plate heat exchanger of either  claim 10  wherein a fluid flows through the conduit, the fluid servicing a ship's auxiliary equipment. 
   
   
       18 . The plate heat exchanger of either  claim 10  wherein a fluid flows through the conduit, the fluid being diesel oil, fuel oil, machinery lubrication oil, hydraulic fluid, oil purification supply or return oil, fresh water, sea water, black water, grey water, potable water, or waste water. 
   
   
       19 . A plate heat exchanger comprising
 a plurality of heat exchange plates including two end plates;   a first liquid supply port through one of the end plates and in communication with a first liquid supply channel through the plurality of heat exchange plates;   a first liquid discharge port connected through one of the end plates and in communication with a first liquid discharge channel through the plurality of plates;   a second liquid supply port connected through one of the end plates and in communication with a second liquid supply channel through the plurality of plates;   at second liquid discharge port connected through one of the end plates and in communication with a second liquid discharge channel through the plurality of plates;   a third liquid supply port connected through one of the end plates and in communication with a third liquid supply channel through the plurality of plates;   at third liquid discharge port connected through one of the end plates and in communication with a third liquid discharge channel through the plurality of plates;   an end plate port through one of the end plates, the end plate port being in communication with either the first liquid discharge channel, the first liquid supply channel, the second liquid discharge channel, the second liquid supply channel; the third liquid discharge channel or the third liquid supply channel; and   a conduit heat exchanger fixedly connected to the end plate port, the conduit heat exchanger further comprising;
 a conduit having a supply and return; 
 a flange for fixedly connecting to a port on the end plate; 
 a supply connection extending outwardly from the flange and in communication through the flange with the supply of the conduit; and 
 a return connection extending outwardly from the flange and in communication through the flange with the return of the conduit. 
   
   
   
       20 . The plate heat exchanger of  claim 19  wherein the conduit extends from the flange into any of the first liquid discharge channel, the first liquid supply channel, the second liquid discharge channel, the second liquid supply channel, the third liquid discharge channel, or the third liquid supply channel. 
   
   
       21 . The plate heat exchanger of  claim 19  further comprising two or more conduit heat exchangers. 
   
   
       22 . The plate heat exchanger of  claim 21  wherein at least one of the two or more conduit heat exchangers cools a fluid. 
   
   
       23 . The plate heat exchanger of  claim 21  wherein at least one of the two or more conduit heat exchangers warms a fluid.