Heating and warm water supply unit and method for operating the same
First Claim
1. A heating arrangement for a building built on soil and having a roof, comprising:
- heat pump means including first conduit means forming a primary circuit for distributing a heated medium, and second conduit means forming a secondary circuit for circulating a heat carrier medium;
water container means including a rain water cistern;
first heat exchanger means in communication with said water container means, said first heat exchanger means being in communication with said second conduit means for warming up said heat carrier medium cooled in said heat pump means and returning it to said heat pump means, said first heat exchanger means including at least two heat exchanging segments, each segment being provided with a fore-run collector and a return collector, adjacent heat exchanging segments configured to have the heat carrier medium flow in reverse direction, and the fore-run and return collectors of adjacent segments being directly side by side;
pump means for pumping water from said water container means to said roof;
distributing means for receiving water from said water container means with the aid of said pump means and for distributing said water on said roof to flow over said roof;
water recollecting means for recollecting water from said roof and for returning it to said water container means;
at least one temperature sensor means for providing a temperature signal to indicate whether a normal operation is possible, and to indicate when risk of icing is present, said temperature sensor means being arranged in at least one of the following places;
on said roof, in said water container means, and in said conduit means;
control means receiving said temperature signal for controlling said pump means, said control means being programmed so that during normal operation water is fed from said water container means onto said roof, is heated there and is returned to said water container means, and in times where said temperature signal indicates the risk of icing of the water, said pump means are controlled in such a manner that feeding water to the roof is interrupted, and said distribution means are drained off.
1 Assignment
0 Petitions
Accused Products
Abstract
A heat exchanger is disclosed which is built up of a series of segments, which have each a fore-run and a return collector, which are interconnected by tubular or plate-shaped, substantially parallel, heat exchanging elements, in contact with cistern water through which flows the cooling medium of the heat pump. Adjacent heat exchanging segments have flow through in a reversed direction, and the fore-run and return collectors of adjacent segments are directly side by side. An electronic control unit which controls the pump and, optional valves, as a function of signals of temperature sensors on the roof surface, is included in the cistern and/or in conduits, so that during normal operation water is fed from the cistern onto the roof, is heated, and may be returned to the cistern. In times of the risk of icing of the water in the distribution pipes and on the roofing the pump and the valves are controlled in such a manner that feeding water to the roof is interrupted, and the distribution pipes, and optionally their feeding pipes, are drained off, while the pump can take care of a circulation of water in the cistern, so that the heat capacity of the water of the cistern, including at least part of the latent heat thereof, and optionally the geothermal energy fed through the cistern'"'"'s wall, may be utilized.
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Citations
54 Claims
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1. A heating arrangement for a building built on soil and having a roof, comprising:
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heat pump means including first conduit means forming a primary circuit for distributing a heated medium, and second conduit means forming a secondary circuit for circulating a heat carrier medium;
water container means including a rain water cistern;
first heat exchanger means in communication with said water container means, said first heat exchanger means being in communication with said second conduit means for warming up said heat carrier medium cooled in said heat pump means and returning it to said heat pump means, said first heat exchanger means including at least two heat exchanging segments, each segment being provided with a fore-run collector and a return collector, adjacent heat exchanging segments configured to have the heat carrier medium flow in reverse direction, and the fore-run and return collectors of adjacent segments being directly side by side;
pump means for pumping water from said water container means to said roof;
distributing means for receiving water from said water container means with the aid of said pump means and for distributing said water on said roof to flow over said roof;
water recollecting means for recollecting water from said roof and for returning it to said water container means;
at least one temperature sensor means for providing a temperature signal to indicate whether a normal operation is possible, and to indicate when risk of icing is present, said temperature sensor means being arranged in at least one of the following places;
on said roof, in said water container means, and in said conduit means;
control means receiving said temperature signal for controlling said pump means, said control means being programmed so that during normal operation water is fed from said water container means onto said roof, is heated there and is returned to said water container means, and in times where said temperature signal indicates the risk of icing of the water, said pump means are controlled in such a manner that feeding water to the roof is interrupted, and said distribution means are drained off. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A heating arrangement for a building built on soil and having a roof, comprising:
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heat pump means including first conduit means forming a primary circuit for distributing a heated medium, and second conduit means forming a secondary circuit for circulating a heat carrier medium;
water container means including a rain water cistern;
heat exchanger means in communication with said water container means, said heat exchanger means being in communication with said second conduit means for warming up said heat carrier medium cooled in said heat pump means and returning it to said heat pump means, said heat exchanger means including at least two heat exchanging segments, each segment being provided with a fore-run collector and a return collector, adjacent heat exchanging segments being configured to have the heat carrier medium flow in reverse direction, and the fore-run and return collectors of adjacent segments being directly side by side;
pump means for pumping water from said water container means to said roof;
distributing means for receiving water from said water container means with the aid of said pump means at a feeding side thereof, and for distributing said water on said roof to flow over said roof, said distributing means comprise distribution pipe means of a predetermined length, said distribution pipe means having a plurality of exit openings for distributing water through said outlet bores;
water recollecting means for recollecting water from said roof and for returning it to said water container means;
at least one temperature sensor means for providing a temperature signal to indicate whether a normal operation is possible, and to indicate when risk of icing is present, said temperature sensor means being arranged in at least one of the following places;
on said roof, in said water container means, and in said conduit means;
control means receiving said temperature signal for controlling said pump means, said control means being programmed so that during normal operation water is fed from said water container means onto said roof, is heated there and is returned to said water container means, and in times where said temperature signal indicates the risk of icing of the water, said pump means are controlled in such a manner that feeding water to the roof is interrupted, and said distribution means are drained off. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A heating arrangement for a building built on soil and having a roof, comprising:
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heat pump means including first conduit means forming a primary circuit for distributing a heated medium, and second conduit means forming a secondary circuit for circulating a heat carrier medium;
water container means including a rain water cistern;
first heat exchanger means in communication with said water container means, said first heat exchanger means comprising conduit means for communication with said second conduit means for warming up said heat carrier medium cooled in said heat pump means and returning it to said heat pump means, said first heat exchanger means including at least two heat exchanging segments, each segment being provided with a fore-run collector and a return collector, adjacent heat exchanging segments being configured to have the heat carrier medium flow in reverse direction, and the fore-run and return collectors of adjacent segments being directly side by side;
pump means for pumping water from said water container means to said roof;
distributing means for receiving water from said water container means with the aid of said pump means and for distributing said water on said roof to flow over said roof;
water recollecting means including recollecting conduit means for recollecting water from said roof and for returning it to said water container means;
valve means for controlling the flow in at least one of said conduit means;
at least one temperature sensor means for providing a temperature signal at least to indicate whether a normal operation is possible, and to indicate when risk of icing is present, said temperature sensor means being arranged in at least one of the following places;
on said roof, in said water container means, and in said conduit means;
control means receiving said temperature signal for controlling said pump means and said valve means as a function of said temperature signal, said control means being programmed so that during normal operation water is fed from said water container means onto said roof, is heated there and is returned to said water container means, and in times where said temperature signal indicates the risk of icing of the water, said pump means and said valve means are controlled in such a manner that feeding water to the roof is interrupted, and said distribution means are drained off. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A heating arrangement for a building built on soil and having a roof, comprising:
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heat pump means including first conduit means forming a primary circuit for distributing a heated medium, and second conduit means forming a secondary circuit for circulating a heat carrier medium;
water container means including a rain water cistern;
pump means for pumping water from said water container means to said roof;
distributing means for receiving water from said water container means with the aid of said pump means and for distributing said water on said roof to flow over said roof;
feeding pipe means for feeding water from said pump means to said distributing means;
connection conduit means extending between said feeding pipe means and said water container means valve means between said water container means and said distributing means, said valve means including a valve in said connection conduit means which orifices into said feeding pipe means before said valve;
heat exchanger means in communication with said water container means, said heat exchanger means being formed as a reverse direction flow heat exchanger which is in communication with said second conduit means for warming up said heat carrier medium cooled in said heat pump means and returning it to said heat pump means, while heat energy of water from said water container means is used to warm said heat carrier medium, so that cooled water exiting said heat exchanger means is fed to said distribution means via said valve means to be finely distributed over the roof surface area;
water recollecting means for recollecting water from said roof and for returning it to said water container means;
at least one temperature sensor means for providing a temperature signal to indicate whether a normal operation is possible, and to indicate when risk of icing is present, said temperature sensor means being arranged in at least one of the following places;
on said roof, in said water container means, and in said conduit means;
control means receiving said temperature signal for controlling said pump means and said valve means, said control means being programmed so that during normal operation water is fed from said water container means onto said roof, is heated there and is returned to said water container means, and in times where said temperature signal indicates the risk of icing of the water, said pump means and said valve means are controlled in such a manner that said valve in said connection conduit means is opened and water after cooling in the reverse direction flow heat exchanger is returned directly into said water container means via said open valve, while feeding water to the roof is interrupted. - View Dependent Claims (38, 39, 40, 41)
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42. A method for operating a heating arrangement having a heating means using ambient heat collected in a heating surface, a heat exchanger means, a heat pump means having a primary and a secondary circuit for heating water, and a water container means for storing warm water, the method comprising:
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filling said water container means with water;
heating said secondary circuit of said heat pump by said heat exchanger;
feeding said water during normal operation to said heating surface;
distributing said water on said heating surface, recollecting said water from said heating surface; and
returning said heated water to said water container means. - View Dependent Claims (43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 54)
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48. A method for operating a heating arrangement having a heating means using ambient heat collected in a heating surface, a heat exchanger means, a heat pump means having a primary and a secondary circuit for heating water, and a water container means for storing warm water, the method comprising:
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filling said water container means with water;
heating said secondary circuit of said heat pump by said heat exchanger;
feeding said water during normal operation to said heating surface through a pipe system;
draining said pipe system when a risk of icing of the water is detected;
distributing said water on said heating surface during normal operation;
recollecting said water from said heating surface; and
returning said heated water to said water container means.
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Specification