Hot water heater and method of supplying hot water
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F24H-001/18
F24H-009/00
E03B-001/00
F24D-003/08
F24D-003/10
B65D-025/16
출원번호
US-0996644
(2009-06-10)
등록번호
US-9261291
(2016-02-16)
우선권정보
NL-2001674 (2008-06-12)
국제출원번호
PCT/NL2009/050321
(2009-06-10)
§371/§102 date
20101207
(20101207)
국제공개번호
WO2009/151321
(2009-12-17)
발명자
/ 주소
Peteri, Niels Theodoor
출원인 / 주소
Henri Peteri Beheer B.V.
대리인 / 주소
Koehler, Steven M.
인용정보
피인용 횟수 :
0인용 특허 :
16
초록▼
A hot water heater comprises a hot water tank, a supply pipe to be connected to the public water mains and a discharge pipe to be connected to a tap. The hot water tank has a circumferential wall which encloses the interior of the tank and which is provided with a heating element disposed inside the
A hot water heater comprises a hot water tank, a supply pipe to be connected to the public water mains and a discharge pipe to be connected to a tap. The hot water tank has a circumferential wall which encloses the interior of the tank and which is provided with a heating element disposed inside the hot water tank and with a temperature control device. The circumferential wall of the tank comprises a part which is bellows-shaped so as to be deformable under pressure, thus enabling the tank to expand and contract. The bellows-shaped part of the tank wall is surrounded by a gas chamber containing a gas under pressure, which is capable of balancing the expansion of the tank. The invention further relates to a method for supplying hot water.
대표청구항▼
1. A hot water heater comprising: at least one hot water tank;a heating element disposed inside the hot water tank;a temperature control device operably connected to the heating element;a supply pipe configured to be connected to a public water mains; anda discharge pipe configured to be connected t
1. A hot water heater comprising: at least one hot water tank;a heating element disposed inside the hot water tank;a temperature control device operably connected to the heating element;a supply pipe configured to be connected to a public water mains; anda discharge pipe configured to be connected to a tap;wherein: the hot water tank comprises a cylindrical circumferential wall having a longitudinal axis and at least one end wall which enclose at least part of an interior of the tank;the cylindrical circumferential wall of the tank comprises at least a deformable wall part which is configured to be deformable under pressure, enabling the tank to expand and contract, the deformable wall part of the tank wall comprising deformable pleats forming a bellows part near the at least one end wall so as to enable the tank to expand and contract in a direction of the longitudinal axis, wherein the bellows part and the at least one end wall are surrounded by a gas chamber containing a gas under pressure, which is configured to balance the expansion of the tank. 2. The hot water heater according to claim 1, wherein at least the deformable part of the wall is made of a corrosion-resistant metal and is made in one piece and have a wall thickness of maximally about 0.6 mm. 3. The hot water heater according to claim 1, wherein the gas chamber is formed between the hot water tank and a gas chamber wall which comprises at least an end wall and a circumferential wall of the gas chamber. 4. The hot water heater according to claim 3, wherein the circumferential wall of the gas chamber is attached to the circumferential wall of the hot water tank at its end remote from the end wall of the gas chamber, adjacent to an end of the deformable part remote from the at least one end wall of the tank. 5. The hot water heater according to claim 1, wherein the deformable part of the tank wall is designed to allow a maximum expansion of the tank of about at most 10% of its unexpanded volume. 6. The hot water heater according to claim 1, wherein tank is provided with a stop configured to limit at least the contraction movements of the deformable part of the tank wall. 7. The hot water heater according to claim 6, wherein said stop is disposed on an inner side of a gas chamber wall, in particular on a circumferential wall of the gas chamber, and which mates with at least one pleat of the bellows part. 8. The hot water heater according to claim 1, wherein the supply pipe is provided with a pressure reducing valve configured to control the pressure in the tank. 9. The hot water heater according claim 1, wherein the bellows part, in an unloaded condition thereof, has a length which ranges between the extreme lengths of the bellows part in use. 10. The hot water heater according to claim 1, wherein the bellows part takes up about 30-50% of the total length of the circumferential wall in an unexpanded condition. 11. The hot water heater according to claim 1, wherein the volume of the gas chamber is about 10-50% of the volume of the tank in an unexpanded condition. 12. The hot water heater according to claim 1, wherein the heating element and the temperature control device are designed to heat the water to a temperature of more than 100° C. under super-atmospheric pressure conditions. 13. The hot water heater according to claim 1, wherein the end wall of the tank adjacent to the bellows part forms the bottom wall of the tank. 14. The hot water heater according to claim 1, wherein the heating element extends into that part of the tank which is surrounded by the gas chamber. 15. A hot water heater comprising: a hot water pressure tank;a heating element disposed inside the hot water tank;a temperature control device operably connected to the heating element;a supply pipe configured to be connected to a public water mains for admitting mains water under pressure to the hot water pressure tank and heating and storing said water therein at a temperature of at least 80° C.; anda discharge pipe configured to be connected to a drinking water tap;wherein: the hot water tank has at least one wall which is substantially made of a corrosion-resistant metal and which comprises at least one cylindrical wall formed around a central axis, which cylindrical wall encloses at least part of the interior of the tank;the cylindrical wall of the tank comprises a wall part near an end of the tank which is provided with deformable pleats configured to deform in a direction parallel to the central axis under pressure of the water in the tank, thus enabling the tank to expand and contract; andthe deformable part of the cylindrical tank wall and the adjacent end wall of the tank are operatively surrounded by a gas chamber containing a gas under pressure, which is configured to balance the expansion of the tank. 16. A hot water heater comprising: at least one hot water tank;a heating element disposed inside the hot water tank;a temperature control device operably connected to the heating element;a supply pipe configured to be connected to a public water mains; anda discharge pipe configured to be connected to a tap;wherein:the hot water tank comprises a cylindrical circumferential wall having a longitudinal axis and at least one end wall which enclose at least part of an interior of the tank;the cylindrical circumferential wall of the tank comprises at least a deformable wall part which is configured to be deformable under pressure, enabling the tank to expand and contract, the deformable wall part of the tank wall comprising deformable pleats forming a bellows part near the at least one end wall so as to enable the tank to expand and contract in a direction of the longitudinal axis, wherein the bellows part and the at least one end wall are surrounded by a gas chamber containing a gas under pressure, which is configured to balance the expansion of the tank;the gas chamber is formed between the hot water tank and a gas chamber wall which comprises at least an end wall and a circumferential wall of the gas chamber, the circumferential wall of the gas chamber being attached to the circumferential wall of the hot water tank at its end remote from the end wall of the gas chamber, and being located remote from the at least one end wall of the tank.
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