Tube bundle heat exchanger with outlet drying system

Abstract

The present invention relates to a heat exchanger configured so that the fluid circulating in the chamber containing the tube bundle performs a first heat exchange with said tube bundle and a second heat exchange with the distribution means of said fluid in the chamber. The present invention also relates to a method of drying a fluid in a tube bundle heat exchanger.

Description

Title: Tube Bundle Heat Exchanger with Outlet Drying System Abstract: The present invention relates to a heat exchanger configured such that fluid circulating in the chamber containing the tube bundle performs a first heat exchange with said tube bundle and a second heat exchange with the distribution means of said fluid in the chamber. The present invention also relates to a method of drying a fluid in a tube bundle heat exchanger.

Claims

CLAIMS1. A heat exchanger (100) comprising:■ a casing (2) defining a heat exchange chamber (3), said chamber (3) having a base region (B) and a top region (S),■ a tube bundle (1) placed in said chamber (3) and at said base region (B),■ distribution means (4) configured to receive internally a fluid to be sprayed in said chamber (3) and intended for a first heat exchange with said tube bundle (1 ), wherein said distribution means (4) is positioned inside said chamber (3) at said top region (S) and said casing (2) further comprises an outlet opening (21 ) of the fluid from said chamber (3), wherein said opening (21 ) is positioned downstream of said distribution means (4) according to an outlet direction (E) of the fluid so that said distribution means (4) allows a second heat exchange with the fluid exiting said chamber (3).

2. The heat exchanger (100) according to the preceding claim, further comprising pressure drop means (41 , 42) configured to establish an internal pressure difference between said distribution means (4) and said heat exchange chamber (3).

3. The heat exchanger (100) according to the preceding claim, wherein said pressure drop means comprises one or more nozzles (41 ) and / or orifices (42) carried by said distribution means (4).

4. The heat exchanger (100) according to any one of the preceding claims, wherein said distribution means (4) comprises a tubular element (40) having an outer surface (40a) of heat exchange with the fluid present in said chamber (3).

5. The heat exchanger (100) according to the preceding claim, wherein said outer surface (40a) comprises fins and / or recesses.

6. The heat exchanger (100) according to any one of the preceding claims, wherein said casing (2) carries said outlet opening (21 ) in position opposite to said base region (B).

7. The heat exchanger (100) according to any one of the preceding claims, wherein said casing (2) carries an opening (22) for supplying fluid in said distribution means (4).

8. The heat exchanger (100) according to any one of the preceding claims, further comprising fluid flow directional means (5) positioned in said exchange chamber (3) and configured to direct the exiting fluid towards said distribution means (4).

9. The heat exchanger (100) according to the preceding claim, wherein said directional means comprises a plate-like element (5) fixed to the casing (2) and oriented in such a way as to confine therebetween said base region (B) and said top region (S) through respective opposite faces (5b, 5s) of said plate-like element (5).

10. The heat exchanger (100) according to the preceding claim, wherein said base region (B) and said top region (S) are in fluid communication through one or more openings (51 ) obtained in said plate-like element (5).

11. The heat exchanger (100) according to the preceding claim, wherein said one or more openings (51 ) face said distribution means (4) and are distributed along an axis (A’) parallel to a longitudinal development axis (A) of said casing (2) and / or of said tube bundle (1 ).

12. The heat exchanger (100) according to any one of claims 9 to 11 , wherein said plate-like element (5) has a V-shaped or U-shaped profile.

13. The heat exchanger (100) according to any one of claims 9 to 12, wherein said distribution means (4) comprises one or more portions (43) projecting into said base region (B) through one or more corresponding openings (51 ) of said plate-like element (5).

14. A use of a heat exchanger (100) according to any one of the preceding claims as an evaporator.

15. Method of drying a fluid in a tube bundle (1 ) heat exchanger (100) comprising the steps of: ■ providing means for distributing the fluid (4) inside a heat exchange chamber (3) containing the tube bundle (1 ),■ spraying the fluid onto the tube bundle (1 ) for a first heat exchange,■ sucking the fluid according to an outlet direction (E) from said chamber (3) so as to obtain a second heat exchange with said distribution means (4).

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