IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0622998
(1984-06-21)
|
우선권정보 |
CA-431661 (1983-06-30) |
발명자
/ 주소 |
|
대리인 / 주소 |
Robic, Robic & Associates
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
4 |
초록
▼
An improved shower-cabin comprising a base provided with a drain for evacuating waste water, and a heat recuperator incorporated into this base. The recuperator comprises a waste water tank connected to the cabin drain and a coil mounted in this tank. The heat of the waste water passing through the
An improved shower-cabin comprising a base provided with a drain for evacuating waste water, and a heat recuperator incorporated into this base. The recuperator comprises a waste water tank connected to the cabin drain and a coil mounted in this tank. The heat of the waste water passing through the tank may be recovered for heating or pre-heating an incoming cold water flowing through the coil.
대표청구항
▼
1. In a shower-cabin comprising a bottom surface and a base provided with a drain for evacuating waste water, a heat recuperator incorporated into said base, said heat recuperator comprising a waste water tank provided with a coil mounted on a set of slightly inclined plates that are superimposed in
1. In a shower-cabin comprising a bottom surface and a base provided with a drain for evacuating waste water, a heat recuperator incorporated into said base, said heat recuperator comprising a waste water tank provided with a coil mounted on a set of slightly inclined plates that are superimposed in a cascadelike arrangement, said tank having a top surface, an inlet connected to the cabin drain, an outlet and an overflow positioned at a predetermined level beyond which the water collected in the tank is evacuated, the top surface of said tank forming the bottom surface of said shower-cabin, whereby part of the heat contained in the waste water may be recovered and used to heat or pre-heat an incoming clean water flowing through said coil, the improvement wherein said waste water tank further comprises: a small lateral chamber having an inlet for receiving waste water different from the one coming from the shower and an outlet for said waste water, said small chamber being in communication with the tank via two lateral openings that respectively connect the upper and lower zones of said chambers and said tank to each other; and obturation means in the waste water outlet of the samll chamber. 2. The improved shower-cabin of claim 1, wherein the tank further comprises: a small lateral chamber having an inlet for receiving waste water different from the one coming from the shower-cabin and an outlet for said waste water, said small chamber being in communication with the tank via two lateral openings that respectively connect the upper and lower zones of said chamber and said tank; and obturation means for simultaneously closing or opening the waste water outlet of the small chamber and the lateral opening that connects the lower zones of said chamber and of said tank. 3. The improved shower-cabin of claim 2, wherein said obturation means consists of a plug hand-operated with a vertical rod. 4. The improved shower-cabin of claim 2, wherein the small chamber and the tank are integrated to each other so as to have at least one lateral wall in common. 5. The improved shower-cabin of claim 4, wherein said lateral openings are provided for in said at least one common wall. 6. In a shower-cabin comprising a bottom surface and a base provided with a drain for evacuating waste water, a heat recuperator incorporated into said base, said heat recuperator comprising a waste water tank provided with a coil mounted on a set of slightly inclined plates that are superimposed in a cascadelike arrangement, each plate having an upper surface provided with a spiral-shaped groove for receiving and holding a corresponding portion of the coil, said tank having a top surface, an inlet connected to the cabin drain, an outlet and an overflow positioned at a predetermined level beyond which the water collected in the tank is evacuated, the top surface of said tank forming the bottom surface of said shower-cabin, whereby part of the heat contained in the waste water may be recovered and used to heat or pre-heat an incoming clean water flowing through said coil, the improvement consisting in a plate, immediately positioned under the inlet of the tank, said plate having a reversed saucer shape, and other plates alternatively having non-reversed and reversed saucer shapes, each of said other plates having a central portion provided with an opening to allow waste water to flow in cascade toward the next plate down to the bottom of the tank and to give room to the overflow. 7. The improved shower-cabin of claim 6, wherein the inlet of the tank extends downwardly into a small pan located in the central portion of the plate immediately under the inlet of the tank, to define a gas trap stopping escape of unpleasant odors from the tank. 8. The improved shower-cabin of claim 7, wherein the inlet of the tank is provided with a grid. 9. The improved shower-cabin of claim 6, further comprising means for cleaning the heat recuperator, said means consisting of a coil positioned inside the tank and having one end closed while its opposite end is connected to a clean water supply, said coil having a plurality of lateral openings directing a plurality of streams of clean water against the surfaces to be cleaned. 10. A method for recovering heat contained in a warm waste water collected at the bottom of an improved shower-cabin as claimed in claim 2, and for using this recovered heat for preheating an incoming clean water flowing in a coil, said method comprising the steps of: closing the outlet of the small chamber while keeping open the lateral opening that connects the lower zones of the chamber and the tank; feeding the tank, via its inlet, with the warm waste water coming from the bottom of the shower-cabin; allowing said waste water to flow on the plate of the heat recuperator and to contact the coil for pre-heating the incoming clean water flowing therethrough; evacuating the cool waste water toward a sewer via said lateral opening, the pre-heated clean water being either directed toward a cold water tap or toward a water-heater with the proviso that when the amount of warm waste water entering the tank is greater the amount of cooled waste water evacuated from said tank, said warm waste water is allowed to fill the tank up to the level determined by the overflow, the excess of warm waste water entering the tank being then evacuated toward a sewer via said overflow. 11. A method for recovering heat contained in a warm waste water collected at the bottom of an improved shower-cabin as claimed in claim 5 for using this recovered heat for pre-heating an incoming clean water flowing in a coil, said method comprising the steps of: closing the outlet of the small chamber and of the lateral opening that connects the lower zones of said chamber and of the tank; feeding the tank, via its inlet, with the warm waste water coming from the bottom of the shower-cabin; allowing said waste water to flow on the plate of the heat recuperator and to contact the coil for pre-heating the incoming clean water; filling the tank with said warm waste water up to the level determined by the overflow, and evacuating the cool waste water toward a sewer via said overflow, said pre-heated clean water being either directed toward a cold-water tap or a water-heater. 12. The method of claim 11, comprising the additional step of completely emptying the tank of waste water, by opening the outlet of the small chamber and the lateral opening that connects the lower zones of the small chamber and of the tank, and letting flow the content of the tank by gravity in the sewer via said lateral opening and said outlet of the small chamber. 13. The method of claim 12, wherein, when filling of the tank with warm waste water is stopped, the warm waste water contained in the tank is kept there for a certain period of time before it is evacuated toward the sewer, whereby more heat is extracted from said warm waste water for pre-heating an incoming clean water flowing in the coil.
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