| (19) |
 |
|
(11) |
EP 1 213 557 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
02.03.2005 Bulletin 2005/09 |
| (43) |
Date of publication A2: |
|
12.06.2002 Bulletin 2002/24 |
| (22) |
Date of filing: 05.12.2001 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
Designated Extension States: |
|
AL LT LV MK RO SI |
| (30) |
Priority: |
05.12.2000 FI 20002659
|
| (71) |
Applicant: Kvaerner Power Oy |
|
33101 Tampere (FI) |
|
| (72) |
Inventor: |
|
- Lehtiniemi, Tuomas
36220 Kangasala (FI)
|
| (74) |
Representative: Hakola, Unto Tapani |
|
Tampereen Patenttitoimisto Oy, Hermiankatu 12B
33720 Tampere
33720 Tampere (FI) |
|
| |
|
| (54) |
A tube structure, a flow channel structure, and a heat exchanger |
(57) The invention relates to a tube structure, a flow channel structure and a heat exchanger,
as well as their use, particularly in pre-heaters for air in boiler plants. The tube
structure (P) is intended to be fixed between opposite walls (1, 2) of a flow channel
(VK) or the like for a first heat transfer medium (VK) of a heat exchanger. A second
heat transfer medium (TV) is arranged to flow through the tube structure (P). The
tube structure (P) comprises, at its both ends (3, 4), fixing means (5, 6) for fixing
the tube structure (P) in a releasable manner to the walls (1, 2) of the flow channel
(VK). The first and second walls (1, 2) of the flow channel structure are provided
with a compatible pair (17, 18) of holes, through which the tube structures (P) to
be inserted in the heat exchanger are installed.