The present invention relates to a drain system for recovering thermal energy from a flow of shower or faucet greywater. The drain system comprises: a drain collector having a receiving surface for receiving greywater, and a drain collector outlet formed in the receiving surface for discharging greywater from the receiving surface; a heat exchanger configured to heat a flow of incoming cold water with the greywater; an upstream filter and a downstream filter, arranged to filter the greywater flowing along the receiving surface to the drain collector outlet, wherein the upstream filter comprises a first filter screen protruding from the receiving surface and the downstream filter comprises a second filter screen arranged upstream the drain collector outlet.
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
B01D 29/01 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants avec des éléments filtrants plats
B01D 29/44 - Éléments filtrants à arêtes, c.-à-d. utilisant des surfaces imperméables adjacentes
B01D 29/56 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants à plusieurs éléments filtrants caractérisés par leur agencement relatif montés en série
B01D 36/02 - Combinaisons de filtres de différentes sortes
B01D 36/04 - Combinaisons de filtres avec des bacs de décantation
E03C 1/264 - Cribles indépendants ou garnitures intérieures similaires pour arrêter les objets
A drain system for recovering thermal energy from a flow of shower or faucet greywater. The drain system comprises: a drain inlet for receiving greywater; a heat exchanger configured to heat a flow of incoming cold water with the greywater flowing from a grey water inlet to a grey water outlet; and a water level control pipe portion arranged downstream of the grey water outlet. The drain system further comprises a downcomer arranged downstream of the water level control pipe portion. The downcomer comprises a contraction for increasing the flowrate of greywater from the grey water inlet to the grey water outlet.
The present invention relates to a drain system (30) for recovering thermal energy from a flow of shower or faucet greywater. The drain system (30) comprises a first drain system inlet (32) for receiving greywater; a drain system outlet (136) for discharging greywater to a drain; and a heat exchanger (70) comprising a grey water inlet (72) arranged downstream of the drain system inlet (32), and a grey water outlet (74) arranged upstream of the drain system outlet (136), the heat exchanger being configured to heat a flow of incoming cold water with the greywater flowing from the grey water inlet (72) to the grey water outlet (74). The drain system (30) further comprises a second drain system inlet (133) for receiving greywater; a by-pass conduit (138) arranged downstream of the second drain system inlet (133) and upstream of the drain, the by-pass conduit (138) being configured to provide a greywater by-pass of the heat exchanger (70); and an indicator (20, 20') configured to indicate a flow of greywater bypassing the heat exchanger in the by-pass conduit (138).
A shower drain system for recovering thermal energy from a flow of shower greywater comprises: a drain cup for receiving shower greywater, and a heat exchanger arranged downstream of the drain cup, the heat exchanger being configured to heat a flow of incoming cold water with the shower greywater, wherein the drain cup comprises a nozzle arranged and configured to supply hot water into the drain cup.
The present invention relates to a drain system (30, 130) for recovering thermal energy from a flow of shower or faucet greywater. The drain system (30, 130) comprises: a drain inlet (32, 132) for receiving greywater; a heat exchanger (70) configured to heat a flow of incoming cold water with the greywater flowing from a grey water inlet (72) to a grey water outlet (74); and a water level control pipe portion (40, 140) arranged downstream of the grey water outlet (74). The drain system (30, 130) further comprises a downcomer (50, 150) arranged downstream of the water level control pipe portion (40, 140). The downcomer (50, 150) comprises a contraction (52) for increasing the flowrate of greywater from the grey water inlet (72) to the grey water outlet (74).
E03C 1/01 - Installations de plomberie domestique pour l'alimentation en eau ou l'évacuation des eaux uséesÉviers pour des combinaisons de baignoires, douches, éviers, lavabos, cabinets, urinoirs ou similaires
F24D 11/00 - Systèmes de chauffage central utilisant la chaleur accumulée dans des matériaux accumulateurs
F24D 17/00 - Systèmes domestiques d'alimentation en eau chaude
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
E03C 1/00 - Installations de plomberie domestique pour l'alimentation en eau ou l'évacuation des eaux uséesÉviers
E03C 1/12 - Installations de plomberie pour l'évacuation des eaux uséesCuvettes ou postes d'eau qui leur sont reliésÉviers
The present invention relates to a drain system for recovering thermal energy from a flow of shower or faucet greywater. The drain system comprises: a drain collector having a receiving surface for receiving greywater, and a drain collector outlet formed in the receiving surface for discharging greywater from the receiving surface; a heat exchanger configured to heat a flow of incoming cold water with the greywater; an upstream filter and a downstream filter, arranged to filter the greywater flowing along the receiving surface to the drain collector outlet, wherein the upstream filter comprises a first filter screen protruding from the receiving surface and the downstream filter comprises a second filter screen arranged upstream the drain collector outlet.
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Floor drains of metal; Drains made of metal; Drain covers of metal; Metallic gutters. Shower fittings; Shower apparatus; Shower installations; Shower baths; Bathroom installations; Sanitary and bathroom installations and plumbing fixtures; Hot water installations; Shower bath installations; Showers; Shower cubicles. Drain gullies, not of metal; Sumps (non-metallic -) [structures]; Drains [other than of metal or plastic]. Drain traps [valves] of plastic. Services for the installation of drains; Cleaning of drains; Sewer pipe renovation; Sewer pipe cleaning; Sewer pipe maintenance; Services for the installation of sewers; Installation and repair of showers; Repair of heat recovery apparatus. Providing technical advice relating to energy-saving measures; Consultancy in the field of energy-saving.
8.
System for energy recovery and cleaning of heat exchangers in shower applications
A system is provided for heat recovery from shower greywater. An outlet for greywater is connected to a heat exchanger's inlet for greywater and the heat exchanger is designed so that a cold supply water flows in the opposite direction through the heat exchanger relative to the relatively hot greywater, so that heat exchange works under a counterflow principle and heat energy is transferred from the hot greywater to the cold supply water. A manifold having a nozzle outlet for hot supply water is connected to a waste pipe so that the manifold nozzle outlet for hot supply water opens into the waste pipe at a position downstream of the waste pipe inlet for greywater but upstream of the waste pipe outlet for greywater.
F24D 17/00 - Systèmes domestiques d'alimentation en eau chaude
F28G 9/00 - Nettoyage par lessivage ou par lavage, p. ex. avec des solvants chimiques
E03C 1/04 - Installations pour cuvettes spécialement adaptées aux lavabos ou baignoires
E03C 1/044 - Installations pour cuvettes spécialement adaptées aux lavabos ou baignoires ayant un appareil de chauffage ou de réfrigération dans le circuit d'alimentation
E03C 1/00 - Installations de plomberie domestique pour l'alimentation en eau ou l'évacuation des eaux uséesÉviers
F28G 13/00 - Accessoires ou procédés non couverts par les groupes Combinaisons d'accessoires ou de procédés couverts par les groupes
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes