Absorption heat pump installation
AssigneeSulzer Brothers Limited
InventorsJohannes Luthi, George Ziegler
Life of this patent
Estimating the term…
Abstract
The absorption heat pump installation operates with water as a working medium. The installation is equipped with an energy accumulator which acts as a direct evaportor and is operated through the choice of a suitable hydroscopic absorption medium at the triple point of water (6.1 mbar, 0.degree. C.) as an ice accumulator. Water of a room heating system and/or a utility water heater serves as a coolant in the absorber and condenser of the installation. Outside air is preferably used as a low temperature heat source in which case the useful time for heat pump operation is extended without the danger of freezing of an outside-air heat exchanger at temperatures of the ambient air below 0.degree. C.
Claims17
An absorption heat pump installation comprising
- an absorber receiving a hygroscopic absorption medium;
- an expeller for receiving said hygroscopic absorption medium with water;
- a condenser connected to said expeller to receive a flow of steam therefrom and to condense the stream;
- a pump for pumping the absorption medium at high concentration through said expeller and absorber;
- means for circulating water through said absorber, expeller and condenser;
- an energy accumulator receiving a part of the water;
- a vapor line communicating an exposed water surface in said accumulator with said absorber to deliver water vapor to said absorber;
- and
- a water loop being connected to said accumulator and having at least one low-temperature heat source to receive and heat a flow of water from said accumulator;
- said hygroscopic absorption medium and its concentration being selected so that the absorption temperature at the pressure prevailing at the triple point of the water is higher than the temperature of the water flowing through said absorber in order to remove absorption heat.
An absorption heat pump installation comprising
- an absorber receiving a hygroscopic absorption medium;
- an expeller for receiving said hygroscopic absorption medium with water;
- a condenser connected to said expeller to receive a flow of steam therefrom and to condense the steam;
- a pump for pumping the absorption medium at high concentration through said expeller and absorber;
- first means for passing air through said condenser as a coolant to condense the steam therein;
- a second means for passing air through said absorber as a coolant to cool the absorption medium therein;
- means for circulating water through said absorber and said expeller;
- an energy accumulator receiving a part of the water;
- a vapor line communicating an exposed water surface in said accumulator with said absorber;
- and
- means for heating the water in said accumulator;
- and
- heating means for heating at least some of the water in said expeller to steam.
Dependencies are inferred from the claim text.