Title:
A HEAT EXCHANGER WITH A SUCTION LINE HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2011/023192
Kind Code:
A3
Abstract:
A heat exchanger, such as an evaporator (1) or a condenser (17), for a vapour compression system (15) and a vapour compression system (15) with such a heat exchanger are disclosed. The heat exchanger comprises at least two flow tubes arranged fluidly in parallel, an inlet manifold (3) and an outlet manifold (7). Each flow tube fluidly connects the inlet manifold (3) and the outlet manifold (7), and fluid medium is distributed among the flow tubes by the inlet manifold (3). The outlet manifold (7) is provided with a suction line heat exchanger, preferably being fluidly connected in a refrigerant path of the vapour compression system (15) between a condenser (17) and an expansion device (18), in the case that the heat exchanger is an evaporator (1). The suction line heat exchanger is arranged in the outlet manifold (7) in such a manner that direct thermal contact is provided between the refrigerant delivered from the flow tubes and the suction line heat exchanger, the refrigerant, e.g., being sprayed directly onto the suction line heat exchanger. Refrigerant leaving the evaporator (1) is heated, thereby causing evaporation of possible liquid refrigerant. Thereby liquid refrigerant can be allowed to pass through some of the evaporator tubes (2) without risking damage to the compressor (16). Utilisation of the potential refrigeration capacity of the evaporator (1) is improved. Arranging the suction line heat exchanger in the outlet manifold (7) provides a compact design and eliminates the requirement for additional components.
Inventors:
THYBO CLAUS (DK)
LARSEN LARS FINN SLOTH (DK)
MADER GUNDA (DE)
LARSEN LARS FINN SLOTH (DK)
MADER GUNDA (DE)
Application Number:
PCT/DK2010/000101
Publication Date:
September 22, 2011
Filing Date:
June 30, 2010
Export Citation:
Assignee:
DANFOSS AS (DK)
THYBO CLAUS (DK)
LARSEN LARS FINN SLOTH (DK)
MADER GUNDA (DE)
THYBO CLAUS (DK)
LARSEN LARS FINN SLOTH (DK)
MADER GUNDA (DE)
International Classes:
F28F9/02; F25B39/02; F25B39/04; F25B40/00
Foreign References:
| US20090019885A1 | 2009-01-22 | |||
| EP1479995A2 | 2004-11-24 | |||
| DE19830757A1 | 2000-01-13 | |||
| EP1798510A1 | 2007-06-20 |
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