Water heating and storage system
OwnerShmuel Ben-Ishaiinventor
Life of this patent
Estimating the term…
Abstract
There is provided a water heating and storage system, including a heat-insulated main heated water storage tank for storing hot water. The storage tank consists of top, side and bottom walls, has an inlet for heated water entering the tank at a level below the normal level, and a cold water inlet. The system also includes a consumer hot water outlet, and an external water heater having a controlled electrical heating unit, an outlet port for heated water, connectable to the inlet of the tank, and a water inlet port.
Claims13
A thermosyphonic water heating and storage system, comprising:
- a heat-insulated main heated water storage tank for storing hot water, said storage tank having top, side and bottom walls;
- said storage tank having a hot water inlet close to the top wall of the tank for heated water entering the tank, a cold water inlet, and a consumer hot water outlet;
- an external water heater of a capacity up to several liters and having top and side walls and a base, a controlled electrical heating unit protruding into an interior of said water heater from the top wall thereof, an outlet port for heated water, said outlet port being connectable to the inlet of said tank and a water inlet port;
- a first valve connected between the a non-consumer outlet of the storage tank and the water inlet port of the external water heater for allowing prevention of water flow from the storage tank to the external water heater during maintenance;
- a second valve connected between the hot water inlet of the storage tank and the outlet of the external water heater for allowing prevention of hot water flow from the storage tank to the external water heater during maintenance;
- and
- said base being detachably affixed on to said side walls for easy maintenance of the external water heater including maintenance and replacement of the electrical heating unit.
A water heater for operationally interconnecting with a hot water storage tank in a thermosyphonic water heating and storage system, the water heater comprising:
- an enclosure having a top, side and bottom walls enclosing a volume for containing about 1 to 3 liters;
- a water heating arrangement at the top of side walls of the enclosure for controllably heating water inside said enclosure;
- wherein said bottom wall is detachably attached to said side walls, facilitating access to an interior of the enclosure for facilitating maintenance and replacement of the electrical heating arrangement, and
- wherein said water heating arrangement includes an electrical heating element.
A method for fluidically separating heating and storage faculties of a thermosyphonic water heating and storage system having a storage tank coupled to an external water heater having a controlled electrical heating unit to facilitate maintenance including replacement of the electrical heating unit without requiring emptying of the storage tank, the method comprising:
- providing the external water heater with a small capacity tank up to several liters having top and side walls and a removable base;
- coupling an outlet of the external water heater to an inlet of the storage tank via a first valve;
- coupling an inlet of the external water heater to a water outlet port of said storage tank via a second valve;
- and
- prior to maintenance, closing the first and second valves so as to prevent the inlet of water to the external water heater from the storage tank, detaching said base and allowing water to drain from the small capacity tank.
Dependencies are inferred from the claim text.