Tube bundle heat exchanger
A tube bundle heat exchanger has been carried out, wherein a bearing structure ( 2 ) defines at least a primary chamber ( 3 ), which is crossed by tubes ( 4 ) made of a non-solderable material. A secondary chamber ( 5 ) is put in fluid connection with such tubes ( 4 ) and is fluid proof with respect to the main chamber ( 3 ). Furthermore a tube plate ( 6 ), showing the adequate seats ( 7 ) for housing the ends of said tubes ( 4 ) and a containing plate ( 9 ), showing respective holding seats ( 10 ) for each tube ( 4 ) and for the contemporary housing of sealing means ( 8 ), are provided. Finally a third clamping plate ( 11 ) is provided, which abuts on the containing plate ( 9 ), in order to allow deformation and to prevent blow-by through such sealing means ( 8 ).
1. Heat exchanger comprising:
a bearing structure ( 2 ), which defines at least a main chamber ( 3 );
a predetermined number of tubes ( 4 ), which cross said main chamber ( 3 ):
at least a secondary chamber ( 5 ), which is in fluid connection with said tubes ( 4 ) and fluid proof with respect to the main chamber ( 3 );
at least a tube plate ( 6 ), which shows the adequate seats ( 7 ) for housing said tubes ( 4 ), wherein said tube plate ( 6 ) is interposed between the main chamber ( 3 ) and the secondary chamber ( 5 );
sealing means ( 8 ) interposed at least between the main chamber ( 3 ) and the seconday chamber ( 5 ) to avoid fluid flow-by, wherein it further comprises:
a containing plate ( 9 ), which shows a respective holding seat ( 10 ) for each tube ( 4 ), wherein said holding seat ( 10 ) is crossed by a tube ( 4 ) and houses the sealing means ( 8 ); and
each holding seat ( 10 ) being delimited in radial direction by the containing plate ( 9 ), externally, and by the surface of the tube ( 4 ), internally, and the holding seat ( 10 ) being also axially delimited, on the one side, by the tube plate ( 6 ) and, on the other side, by the clampling plate ( 11 ).
The sealing means ( 8 ) comprising at least a first and a second sealing element ( 13 a , 13 b ) for each tube ( 4 ), wherein said sealing elements ( 13 a , 13 b ) surround the tube ( 4 ) and are housed in the holding seat ( 10 ) defined by the containing plate ( 9 ).
2. Heat exchanger according to claim 1 , wherein the sealing means ( 8 ) comprise a spacing bush ( 14 ), which is arranged around the tube ( 4 ) and interposed between the sealing means ( 13 a , 13 b ).
3. Heat exchanger according to claim 1 , wherein the sealing means ( 8 ) comprise a bush pressing element ( 15 ) arranged around the tube ( 4 ) and acting on the second sealing means ( 13 b ).
4. Heat exchanger according to claim 3 , wherein the bush pressing element ( 15 ) shows a face ( 16 ) facing to and abutting on the clamping plate ( 11 ), wherein said face shows a predetermined number of sealing riflings ( 17 ).
5. Heat exchanger according to claim 1 , wherein the clamping plate ( 11 ) abuts on the containing plate ( 9 ).
6. Heat exchanger according to claim 1 , wherein containing plate ( 9 ) abuts on the tube plate ( 6 ).
7. Heat exchanger according to claim 1 , further comprising a sealing gasket ( 18 ), which is interposed between the containing plate ( 9 ) and the tube plate ( 6 ).
8. Heat exchanger according to claim 1 , further comprising a sealing gasket ( 19 ), which is interposed between the clamping plate ( 11 ) and the containing plate ( 9 ).
9. Heat exchanger according to claim 1 , wherein said clamping plate ( 11 ), in correspondence to an outer surface thereof, shows a seat ( 30 ) which is fit for housing an adequate gasket.
10. Heat exchanger according to claim 1 , wherein a clamping packing of tube plate ( 6 ), containing plate ( 9 ) and clamping plate ( 11 ) implies deformation of at least the said sealing elements ( 13 a , 13 b ), due to compression.
11. Heat exchanger comprising:
a bearing structure ( 2 ), which defines at least a main chamber ( 3 );
a predetermined number of tubes ( 4 ), which cross said main chamber ( 3 );
at least a secondary chamber ( 5 ), which is in fluid connection with said tubes ( 4 ) and fluid proof with respect to the main chamber ( 3 );
at least a tube plate ( 6 ), which shows the adequate seats ( 7 ) for housing said tubes ( 4 ), wherein said tube plate ( 6 ) is interposed between the main chamber ( 3 ) and the secondary chamber ( 5 );
sealing means ( 8 ) interposed at least between the main chamber ( 3 ) and the seconday chamber ( 5 ) to avoid fluid flow-by, wherein it further comprises:
a containing plate ( 9 ), which shows a respective holding seat ( 10 ) for each tube ( 4 ), wherein said holding seat ( 10 ) is crossed by a tube ( 4 ) and houses the sealing means ( 8 ), the sealing means ( 8 ) comprising at least a first and a second sealing element ( 13 a , 13 b ) for each tube ( 4 ), wherein said sealing means ( 13 a , 13 b ) surround the tube ( 4 ) and are housed in the holding seat ( 10 ) defined by the containing plate, the sealing means ( 8 ) further comprising a spacing bush ( 14 ), which is arranged around the tube ( 4 ) and interposed between the sealing means ( 13 a , 13 b ); and
a clamping plate ( 11 ), which equally shows respective through seats ( 12 ), in order to put the secondary chamber ( 5 ) in fluid connection with the tubes ( 4 ), wherein said containing plate ( 9 ) is interposed between the tube plate ( 6 ) and the clamping plate ( 11 ).
12. Heat exchanger according to claim 11 , wherein each holding seat ( 10 ) is delimited in radial direction by the containing plate ( 9 ), externally, and by the surface of the tube ( 4 ), internally, and it is axially delimited, on the one side, by the tube plate ( 6 ) and, on the other side, by the clamping plate ( 11 ).
13. Heat exchanger comprising:
a bearing structure ( 2 ), which defines at least a main chamber ( 3 );
a predetermined number of tubes ( 4 ), which cross said main chamber ( 3 );
at least a secondary chamber ( 5 ), which is in fluid connection with said tubes ( 4 ) and fluid proof with respect to the main chamber ( 3 );
at least a tube plate ( 6 ), which shows the adequate seats ( 7 ) for housing said tubes ( 4 ), wherein said tube plate ( 6 ) is interposed between the main chamber ( 3 ) and the secondary chamber ( 5 );
sealing means ( 8 ) interposed at least between the main chamber ( 3 ) and the seconday chamber ( 5 ) to avoid fluid flow-by, wherein it further comprises:
a containing plate ( 9 ), which shows a respective holding seat ( 10 ) for each tube ( 4 ), wherein said holding seat ( 10 ) is crossed by a tube ( 4 ) and houses the sealing means ( 8 ), the sealing means ( 8 ) comprising at least a first and a second sealing element ( 13 a , 13 b ) for each tube ( 4 ), wherein the said sealing elements ( 13 a , 13 b ) surround the tube ( 4 ) and are housed in the holding seat ( 10 ) defined by the containing plate ( 9 ); and
a clampling plate ( 11 ) which equally shows respective through seats ( 12 ) in order to put the secondary chamber ( 5 ) in fluid connection with the tubes ( 4 ), wherein said containing plate ( 9 ) is interposed between the tube plate ( 6 ) and the clampling plate ( 11 ), said clampling plate ( 11 ), in correspondence to an outer surface thereof, has a seat ( 30 ) which is fit for housing an adequate gasket, a clamping packing of tube plate ( 6 ), containing plate ( 9 ) and clamping plate ( 11 ) implies deformation of at least the said sealing elements ( 13 a , 13 b ), due to compression.