Abstract:
본 실시예는 아우터 셀과; 아우터 셀 내부에 배치된 이너 셀과; 아우터 셀의 내부로 희용액을 공급하는 희용액 공급관과; 이너 셀 내부로 연소가스를 발생하는 버너와; 아우터 셀과 이너 셀 사이에 배치되어 희용액과 연소가스를 열교환하는 판형 열교환기와; 판형 열교환기를 통과한 연소가스를 안내하는 배기 덕트를 포함하고, 판형 열교환기는 연소가스의 유동방향과 직교한 방향으로 적층된 다수의 단위 전열유닛을 포함하고, 단위 전열유닛은 일단이 연결되고 타단이 접합된 한 쌍의 전열 바디 사이에 연소가스가 통과하는 이너통로가 수평 방향으로 길게 형성되며, 전열 바디에는 인접한 타 단위 전열유닛과 접합되는 접합 바디가 형성되고, 다수의 단위 전열유닛 중 서로 인접한 단위 전열유닛의 사이에는 아우터 셀 내부의 희용액이 수용되는 희용액공간이 수직방향으로 개방되어, 얇은 판을 연속적으로 접어 구부리는 경우 보다 제조가 용이하고, 신뢰성이 높은 이점이 있다.
Abstract:
Es wird ein Verfahren zur Reinigung einer zur Wärmeübertragung vorgesehenen Trennwand 17 vorgeschlagen, die in einem Wärmetauscher 21 einen Abwasserraum 2, durch den Abwasser vor Ableitung in einen Abwasserkanal 19 geleitet wird, von einem Nutzwasserraum 6, durch den zu erwärmendes Wasser fließt, trennt. Zur Erhöhung der Effizienz der Wärmeübertragung ist vorgesehen, dass eine kontinuierliche Reinigung der Trennwand 17 durch einen Abstreifer 15 in vorbestimmten Zeitabständen unterbrochen und eine alternative Reinigung durch einen Hochdruckreiniger 11, 12, 13 durchgeführt wird, wobei der Abwasserraum 2 vor Reinigung der Trennwand 17 durch den Hochdruckreiniger 11, 12, 13 entleert wird. Darüber hinaus wird eine erfindungsgemäße Wärmerückgewinnungseinheit vorgeschlagen.
Abstract:
Apparatus (2) for recovering heat from heated waste water (4), which apparatus (2) comprises: (i) a first pipe (6) for receiving unused pressurised mains water (8); (ii) propeller means (10) positioned in the first pipe (6) such that propeller means (10) is caused to rotate by flow of the unused mains water (8) in the first pipe (6); (iii) a plurality of first magnets (12) provided on the propeller means (10); and (iv) a sealed system (14) for containing a heat transfer fluid (16); and the sealed system (14) being such that: (v) the sealed system (14) comprises a first part (18) which covers a length (20) of the first pipe (6), the propeller means (10) and the first magnets (12); (vi) the sealed system (14) comprises coupling means (22) which is caused to operate by the first magnets (12), and in which in operation pumps the heat transfer fluid (16) around the sealed system (14); (vii) the sealed system (14) comprises a second part (24) which covers a length (26) of a second pipe (28) for receiving the heated waste water (4); (viii) the length of the second pipe (28) which is covered by the second part (24) of the sealed system (14) is sufficiently long for heat to be transferred from the heated waste water (4) to the heat transfer fluid (16); and (ix) the length of the first pipe (6) which is covered by the first part (18) of the sealed system (14) is sufficiently long for heat to be transferred from the heat transfer fluid (16) to the unused mains water (8), whereby the apparatus (2) is such that heat from the heated waste water (4) is used to heat the unused mains water (8) and thereby reduce the cost of heating the unused mains water (8).
Abstract:
A counter-current heat exchanger (1) for use in transferring heat from a hot water output to a cold water input in a plumbing system. The heat exchanger (1) has upper (2) and lower (3) plates with a heat exchange layer (4) therebetween. The heat exchange layer (4) has upper (4a) and lower (4b) sides. A first conduit (7) for the hot water output is formed between the upper side (4a) of the heat exchange layer 4 and the upper plate (2) and a second conduit (8) for the cold water input is formed between the lower side (4b) of the heat exchange layer and the lower plate (3). The first (7) and second (8) conduits are formed as spirals with the heat exchange layer (4) forming a boundary therebetween with the first conduit (7) positioned above the second conduit (8) and the heat exchange layer connected to the lower plate (3) via a sealed connection.
Abstract:
A system for cooling and/or heating of a liquid in a closed liquid/liquid heat exchanger system is disclosed, comprising a sedimentation tank (1) for detaining through-flowing wastewater or rainwater, wherein a natural thermal stratification in the tank (1) is utilised by means of an upper (56), an intermediate (57) and a lower coil (58) placed in different horizontal layers of the tank (1), respectively, each containing a liquid and being arranged to exchange heat energy between the water in the tank (1) and the liquid inside the coils (56, 57, 58) separately and independently of the other coils or, in order to obtain a larger coil length and, thereby, a longer time for exchanging heat energy with the water near the top of the tank (1) or with the water near the bottom of the tank (1), in continuation of one another by connecting the intermediate coil (57) to the upper coil (56) and/or to the lower coil (58).
Abstract:
An electric shower that has a heat recovery system (heat exchanger) that is an integral part of a shower base and enclosure. The heat recovery is facilitated by a full flow, low pressure, thin lightweight heat exchanger that forms the shower tray.
Abstract:
A hot water cylinder (1) includes two zones (2), (3), for hot water storage. The upper zone (2) is physically separated from the lower zone (3) by a dome shaped barrier plate (4). Fluid communication between the two zones (2), (3) is allowed via a flow port (5) at the top of the dome-shaped barrier (4) The upper zone (2) includes two direct heating devices (6), (7) to heat the water and the lower zone (3) includes a heating coil (8) that is arranged to be connected to a heat exchanger forming part of a system for waste water recycling and heat recovery. The dome shaped barrier (4) is arranged to present a physical barrier between two zones (2), (3) containing fluid at different temperatures. The use of a physical barrier (4) having a flow port (5) putting the two zones (2), (3) in fluid communication helps to avoid the forming of layers that may act as barriers to water mixing.which could lead to an inefficient heating and storage system. The heating coil (8) in the lower zone (3) acts as a pre-heater for the water in the zone (3) which means that the temperature gradient to be delivered by the heating devices (6), (7) in the upper zone (2) is considerably reduced.
Abstract:
The invention relates to a heat exchange device for introducing into a waste water pipeline extending in a longitudinal direction L, comprising a heat exchange wall made from a solid, heat-conducting material having a waste water side which is designed to come into contact with the waste water and an inner side which is designed to come into contact, at least sections, with the heat exchange medium, and a heat exchange chamber wall having an inner side which is designed to come into contact, at least in sections, with the heat exchange medium, an outer side which is designed to be oriented towards the waste water pipeline inner wall and to be in direct or indirect contact, at least in sections, with the waste water pipeline inner wall. The heat exchange wall forms the inner wall of a tubular body, the heat exchange wall and the heat exchange chamber wall being arranged, at least in parts, at a distance from each other such that a heat exchange chamber is formed partially between the heat exchange wall and the heat exchange chamber wall, said heat exchange chamber being connected on the outside by means of a feed line and a return line. The invention also relates to the use and to a heat exchange arrangement. The feed line and the return line are arranged on the heat exchanger wall.
Abstract:
Disclosed is a system for extracting heat from an effluent duct (2), in particular a wastewater collection device, comprising, in the zones of the inner duct wall located above the effluent, heat exchanger tubes (3) which are exposed to the atmosphere in the duct and through which a heat transfer fluid flows to recover some of the sensible heat and of the latent condensation heat from the steam generated by the effluent. A forced-convection device (9) is provided to generate a movement of air sweeping across the surface of the effluent (1) and increase the evaporation rate of the effluent.