• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a system for heat recovery from shower water comprising a) a heat exchanger (1) having an inlet for waste water (2), an outlet for pre-waste water (3), an inlet for cold fresh water (4) and an outlet for preheated fresh water (5); Ib) a drain pipe (6) having a waste water inlet (7) and a waste water outlet (8); c) a particle screen (9) arranged upstream of the inlet of the drain pipe pre-drain water (8); where the outlet of the drain pipe for waste water (8) is connected to the heat exchanger inlet for waste water (2) and where the heat exchanger (1) is designed so that the cold fresh water flows in the opposite direction through the heat exchanger (1) relative to the hot outlet. that heat energy from the hot waste water transfers the cold fresh water thereto branch pipe (10) with a nozzle outlet for hot water (11) is connected to the drain pipe (6) so that the branch pipe nozzle outlet for hot water (11) opens into position downstream of the inlet of the drain pipe for wastewater (7) but upstream of the outlet of the drain pipe for waste water (8). In one embodiment a non-return valve is placed in the drain pipe between the inlet of the drain pipe (7) and the outlet pipe of the branch pipe to drain water (11) ). In the preferred embodiment there is no mechanical non-return valve and no other moving parts in the drain line. In the preferred embodiment hot water supply takes place via the manifold (10) through a nozzle-provided outlet (11) into the drain pipe, which creates a pumping action which prevents cleaning water from entering the drain. )
    公开号:SE1330095A1
    申请号:SE1330095
    申请日:2013-08-06
    公开日:2015-02-07
    发明作者:Henrik Hagman；Gustav Nilsson
    申请人:Henrik Hagman Med He Design F；
    IPC主号:
    专利说明:

    1 (13) DESCRIPTION - SYSTEM FOR ENERGY RECOVERY FROM SHOWER WATER TECHNICAL FIELD The present invention relates to energy recovery from shower water. In particular, the invention relates to a system for heat exchanger-based recovery of heat energy from shower water.
    Background The amount of energy that is flushed down the drain, and is wasted, in a normal shower is very rigid relative to other power consumers in the home. Consumption varies between in the order of 8 to 30 kW, depending on the water surface and the temperature of the shower water. There is therefore a significant potential in reducing the hot water consumption and energy consumption in the household by utilizing the heat in the hot shower wastewater, to heat the cold water flow before this reaches the hot water mixer. A number of solutions for energy recovery from shower water are described in the literature, see for example GB2232749, US4619311 and GB2052698.
    Summary of the present invention A major advantage of reusing heat energy from the, in the context of wastewater, very hot water Iran shower cabin drain to heat the shower mixer's cold water, is that the large temperature difference between cold water and shower wastewater enables a very efficient heat transfer system and central heat transfer system. which are commercially available for both household and larger properties. In central systems, the hot wastewater Iran is showered, with relatively cold and heavily polluted water from, for example, toilets, which means that the choice of technology is limited and efficiency is poor. A number of solutions for energy recovery from shower water are described in the literature, see for example GB2232749, US4619311 and GB2052698. A disadvantage of the existing solutions for energy recovery 2 (13) from shower water is that the efficiency is low. To our knowledge, there is no described device for recovering heat energy from shower water which has an efficiency less than 55 ° A). Industrial heat exchangers with higher efficiency are available, but as far as we know, no one has so far been able to successfully use such a highly efficient heat exchanger in a system for energy recovery from shower water. The inventors of the present patent application have realized that when heat exchangers with high efficiency, such as those at efficiencies above 60 ° / 0, are used for heat exchange of shower water, fats from the wastewater will fall out and solidify on heat transfer surfaces, which leads to the heat exchangers clogging and losing performance. This in itself can also be a problem when heat exchangers with lower efficiency are used, but since the shower water in these cases is not cooled as much, the same amounts of grease / tallow wax will not fall out and the heat exchangers can work somewhat satisfactorily in any case. . The inventors have therefore realized that the existing systems for energy recovery from shower water can be improved by using a heat exchanger system with a heat exchanger with an efficiency of more than 60%. The inventors have also realized that systems obtain energy recovery from shower water based on heat exchangers with an efficiency of more than 60% need to be designed so that greases and other clogging can be removed from the heat transfer surfaces of the heat exchanger. The inventors have solved this problem by designing a system for heat theater recovery from shower water so that the heat transfer surfaces of the heat exchanger can be cleaned of precipitated fats in a simple and efficient manner.
    A first aspect of the invention therefore relates to a system for heat theater recovery from shower water comprising a heat exchanger (1) having an inlet for waste water (2), an outlet for waste water (3), an inlet for cold fresh water (4) and an outlet for heating fresh water (5); a drain pipe (6) having an inlet for waste water (7) and an outlet for waste water (8); 3 (13) C) a particle screen (9) arranged upstream of the drain pipe inlet for wastewater (7); where the outlet of the waste pipe for waste water (8) is connected to the inlet of the heat exchanger for waste water (2) and where the heat exchanger (1) is designed so that the cold fresh water flows in the opposite direction through the heat exchanger (1) in relation to the hot waste water. the countercurrent principle arises so that heat energy from the hot wastewater Overfors to the cold fresh water; where a branch pipe (10) with an outlet for hot water (11) is connected to the drain pipe (6) so that the outlet pipe for hot water (11) opens into the drain pipe (6) at a position downstream of the drain pipe inlet for waste water (7) but upstream on the drain pipe outlet for wastewater (8).
    A second aspect of the present invention relates to a shower cubicle (22) or shower cubicle bottom containing a system in accordance with the first aspect of the invention.
    A third aspect of the invention relates to a method for cleaning a heat exchanger in a system according to the first aspect of the invention comprising the heat exchanger (1) being cleaned by introducing water with a temperature of at least 50 ° C and a pressure of at least 2 bar into the drain pipe. (6) through the manifold (10).
    A fourth aspect of the invention relates to the use of a system according to the first aspect of the invention for heat theater recovery from shower water.
    Oversiktliq beskrivninq of fiqurerna Figure u rbeteckn in ngs: 1) Heat Exchanger The heat exchanger inlet for the waste water heat exchanger outlet for the waste water heat exchanger inlet for cold fresh water 4 (13) the heat exchanger outlet for heated fresh water sewer pipe sewer inlet waste water sewer outlet for the waste water 9) Partikelsil manifold manifold outlet for hot water Sewer pipe diameter Angle between branch pipe inlet for hot water and drain pipe 14) Branch pipe inlet for hot water Hot water cold Shut-off valve for hot water Shower mixer Shower nozzle 19) Water line for temperate shower water Shut-off valve for drainpipe hot water inning.
    Figure 1 b shows the connection of the color register to the drain pipe. Detailed description of the invention Energy recovery from shower water has been described previously and devices for this purpose are available on the market today. A problem with the existing heat exchangers is that: The heat exchangers have a relatively low efficiency The performance of the heat exchangers deteriorates over time due to precipitation of, among other things, grease on heat-transferring surfaces.
    The inventors of the present application have solved the problems of previous systems by means of a design which facilitates efficient washing of (13) the heat transfer surfaces without the need to disassemble or open the system. The system is based on a heat exchanger that has an inlet for hot wastewater, an outlet for wastewater, an inlet for cold fresh water and an outlet for heated fresh water. The heat exchanger is designed so that the cold fresh water flows in the opposite direction through the heat exchanger in relation to the hot wastewater so that heat exchange according to the countercurrent principle arises so that heat energy from the hot wastewater Overfors to the cold fresh water. The system also has a particle strainer that sits upstream in the system and has the task of preventing hair and other larger particles from entering and draining the heat exchanger. Between the particle screen and the heat exchanger is a drain pipe which leads the hot waste water from the particle screen into the heat exchanger's inlet for waste water. On the drain pipe is a branch pipe which has an outlet for hot water which opens into the drain pipe. In this way, hot water with high pressure can be introduced into the heat exchanger via the drain pipe in order to wash away grease and other precipitates from the heat exchanger. A separate influx of hot water via the manifold is necessary for efficient cleaning of the heat exchanger. For the cleaning to work effectively, it is important that cold fresh water does not pass through the cold side of the heat exchanger during the cleaning, as the cleaning hot water passes on the drain side. This would lead to increased clogging of the heat exchanger as the heat exchange that occurs would cool the wash water which would counteract the dissolution of greases and other deposits. The inventor has therefore realized that it is unsuitable to use hot water from a shower mixer when cleaning the heat exchanger as most modern thermostatic mixers shunt cold water into the hot water, and also throttle the hot water flow to insufficient levels of the cold water flow to the thermostat mixer. Although the invention is specially adapted for, and enables, the use of heat exchangers with high efficiencies, the invention is also possible to apply to heat exchanger systems with efficiencies below 55 ° / 0.
    A first aspect of the invention therefore relates to a system for heat theater extraction from shower water comprising 6 (13) a heat exchanger (1) having an inlet for waste water (2), an outlet for waste water (3), an inlet for cold fresh water (4) and an outlet for heated fresh water (5); a sewage pipe (6) having an inlet for wastewater (7) and an outlet for wastewater (8); C) a particle screen (9) arranged upstream of the sewage inlet for wastewater (7); where the outlet pipe for waste water (8) is connected to the inlet of the heat exchanger for waste water (2) and where the heat exchanger (1) is designed so that the cold fresh water flows in the opposite direction through the heat exchanger (1) in relation to the hot waste water according to the countercurrent principle arises so that heat energy from the hot wastewater is transferred to the cold fresh water where a branch pipe (10) with an outlet for hot water (11) is connected to the drain pipe (6) so that the branch pipe outlet for hot water (11) flows into the drain pipe (6) ) in a position downstream of the drain pipe inlet receives waste water (7) but upstream of the drain pipe outlet for waste water (8) - In order to clean the heat exchanger simple, efficient and hygienic, it is dangerous the inlet of the drain pipe during cleaning. This can be done, for example, by supplying the drain pipe (6) with a non-return valve. In one embodiment, therefore, a non-return valve is placed in the drain pipe (6) at a position between the drain pipe inlet for waste water (7) and the outlet pipe of the branch pipe for hot water (11). However, the inventors have discovered that the location and angle of the branch pipe outlet for hot water (11) can be adjusted so that a non-return valve is not present. This is advantageous because the need for moving parts is reduced and the cost can be kept down. The inventors have also succeeded in showing that the location and angle of the branch pipe outlet for hot water (11) is of great importance for how efficient and hygienic the cleaning of the heat exchanger becomes. As can be seen from Example 1, the inventors show that the cleaning works very efficiently when the outlet of the branch pipe for 7 (13) hot water (11) is located at a distance from the heat exchanger inlet for wastewater (2) which is at least equal to twice the diameter of the drain pipe (12). . At shorter distances, the cleaning works considerably smoother, see example 1. The inventors have also shown that the angle at which the hot wash water enters the drain pipe is important for the cleaning. The cleaning works well at angles lower than 55 degrees but considerably lower at 55 degrees or greater. The inventors have shown that such a placement of the manifold gives rise to an ejector effect which effectively cleans the heat exchanger and at the same time prevents the water flowing backwards out of the drain during cleaning. This ejector effect leads to the need for non-return valve in the drain pipe disappearing, which increases operational reliability and reduces the cost of the system.
    In a preferred embodiment, therefore, a non-return valve is not located in the drain pipe (6). In one embodiment, the outlet pipe for hot water (11) is connected to the drain pipe (6) at a distance from the heat exchanger inlet for waste water (2) which is a sufficient start to prevent water flowing backwards through the drain pipe. In one embodiment, the outlet pipe of the manifold is hot water (11) directed downstream in the drain pipe (5) at an angle (13) relative to the drain pipe (6) which is sufficiently small to prevent water flowing backwards through the drain pipe. In a particularly hazardous embodiment, the hot water outlet pipe (11) is connected to the drain pipe (6) at a distance from the waste water inlet of the heat exchanger (2) which is at least equal to twice the diameter of the drain pipe (12) and the hot water outlet 11 (hot water pipe outlet 11). ) is directed downstream in the drain pipe (5) at an angle (13) less than 55 degrees in relation to the drain pipe (6). In principle, the outlet pipe of the branch pipe for hot water (11) can be directed in the direction of the drain pipe, that is to say the angle (13) in relation to the drain pipe can be 0 degrees. In such a construction, however, the connection of the branch pipe to the drain pipe may be more responsive and the production costs may increase. For practical purposes, it is therefore preferable to have an angle (13) which is at least greater than 10 degrees, the yarns greater than 30 degrees. In a preferred embodiment, therefore, the outlet of the branch pipe 8 (13) for hot water (11) is directed downstream in the drain pipe (6) at an angle (13) of 10-55 degrees, preferably 30-45 degrees in relation to the drain pipe (6).
    The particle screen should be designed so that it prevents large particles from entering Iran and clogging the heat exchanger. In a preferred embodiment, therefore, the particle screen (9) has meshes with a mesh diameter of 0.2-2 mm. The branch pipe outlet for hot water (11) can consist of a single hall, but it is also possible that it consists of several halls. For example, the outlet of the branch pipe for hot water (11) can form a nozzle with a plurality of slides. Regardless of the design of the branch pipe outlet for hot water, it is advantageous if the total surface of the branch pipe outlet for hot water (11) is between 5-80 mm2. In one embodiment, therefore, the outlet of the branch pipe for hot water (11) has a total surface area of 5-80 mm2, preferably 7-40 mm2. In one embodiment, the outlet pipe for hot water (11) consists of 1 hall with a diameter of 2-10 mm, preferably 3-7 mm. In one embodiment, the outlet pipe of the hot water manifold (11) consists of more than one halter where at least 1 of the Mien has a diameter of 2-10 mm, preferably 3-7 mm. In one embodiment, the diameter of the drain pipe is 25-80 mm, preferably 30-55 mm as 30-45 mm. In one embodiment, the distance from the branch pipe outlet is hot water (11) and the heat exchanger inlet for waste water (2) is at least 50 mm, the minimum is 60 mm. The one with at least 72 mm, the one with at least 80 mm the one with at least 100 mm. . In one embodiment, the distance from the branch pipe outlet for hot water (11) and the heat exchanger inlet for waste water (2) is 50-500 mm, such as 60-400, such as 72-144 mm.
    For optimal cleaning of the heat exchanger, the wash water needs to have a temperature of at least 50 degrees and a pressure that exceeds atmospheric pressure.
    In ordinary houses, this can be easily achieved by connecting the branch pipe to the house's hot water trunks. In one embodiment, the manifold has an inlet for hot water (14) connected to a hot water cold (15). In one embodiment, the hot water cold (15) contains water with a temperature of 9 (13) at least 50 degrees, preferably at least 55 degrees. In one embodiment, the hot water source (15) contains water with a pressure of at least 2 bar. In one embodiment, hot water is called a hot water line. The washing water for the hot exchanger should be able to be switched off when washing does not take place. In one embodiment, the system therefore includes a hot water shut-off valve (16) for controlling a flow of hot water from the hot water source (15) to the drain pipe (6) where the shut-off valve (16) is located between the hot water branch branch outlet pipe (11) and the hot water source (15) .
    As mentioned above, the system is specially adapted for heat exchangers with high efficiency because the problem of grease deposits and other blockages in these cases will be greater and consequently an efficient cleaning of the heat exchanger will be more critical. In one embodiment, therefore, the heat exchanger has an efficiency of at least 60 ° / 0, preferably at least 65%, preferably at least 70%. In one embodiment, the heat exchanger has a volume of 0.5-5 liters.
    The system according to the present invention is adapted to heat incoming cold water with the heat energy Iran the hot shower water flowing through the heat exchanger in the opposite direction. The heated water is then suitably sent to the Iran heat exchanger outlet for heated fresh water (5) to a shower mixer (17) where it is mixed with hot water from a hot water line to give a shower water of the desired temperature. In one embodiment, the heat exchanger outlet for heated fresh water (5) is connected to a shower mixer (17). In one embodiment, the shower mixer (17) is connected to a hot water cold (15) containing water with a temperature of at least 50 degrees. In one embodiment, the shower mixer (17) and the manifold (10) are connected to the same hot water cold (15). In one embodiment, the system includes a shower nozzle (18) which is connected to the shower mixer (17) via a water line for temperate water (19). In one embodiment, the water line for temperate water (19) is a hose or pipe. (13) Although the cleaning described above is very effective, it may in some cases or in some cases be unreasonable to Ora a further thorough cleaning of the heat exchanger (1). In some cases, it may therefore be unwise to use a cleaning agent. In some cases the cleaning agent may need to operate in the heat exchanger (1) for a longer period of time. In order for this to function optimally, and at the same time the use of cleaning agent is stopped, it may be advantageous to be able to close the outlet for wastewater (3) so that the cleaning agent remains in the heat exchanger. This can be achieved, for example, by a shut-off valve located in a position downstream of the heat exchanger outlet for waste water (3). In one embodiment, therefore, the system includes a shut-off valve for wastewater (20) located downstream of the heat exchanger outlet for wastewater (3). In one embodiment, the system includes a water seal (21) located downstream of the waste water shut-off valve (20).
    The system according to the present invention is specially lit for shower enclosures. A second aspect of the invention relates to darts & a shower cabin or a shower cabin bottom (22) containing a system in accordance with the flag of the first aspect embodiment.
    A third aspect relates to a method for cleaning a heat exchanger in a system according to the flag of the first aspect embodiments comprising the heat exchanger (1) being cleaned by introducing water with a temperature of at least 50 ° C and a pressure of at least 2 bar into the drain pipe (6 ) through the manifold (10).
    A fourth aspect of the invention relates to the use of a system according to the flag of the first aspect embodiments for heat theater recovery from shower water. Example Example 1: Description of riqq and experimental activities: A system for energy recovery of heat energy Iran shower water was built around the plate heat exchanger TL3B2 from Alfa Laval. 4mm thick and made of alloy 304. A technical rig for verification and evaluation of technology and methods was built, then the technology was implemented and the methods were evaluated in a commercially available shower cabin solution (Cello Atlas plus). The heat exchanger's performance at different degrees of soiling was logged with online temperature and river feeds. Various principles and constructions for cleaning the clogged heat exchanger were evaluated. Two different thermostatic mixers, one from FM Mattson, one from Cello were used in the evaluations. Sewers and pipes had an inside diameter of 36mm, the water pipes and branch pipe had an inside diameter of 13mm. The conclusions from the technical work can be divided into mainly two parts: In a first part, the inventors showed that the purification using hot water does not work satisfactorily when using temperate water Iran thermostatic mixer (17) for the manifold (10). When a separate pipe was then connected from the hot water trunk (15) to the branch pipe (10), this resulted in a very good cleaning effect where all grease could be quickly removed. The DA cold water for the thermostat mixer was switched off in a fork to achieve the same cleaning effect as when connecting the manifold (10) directly to the hot water stock, but the gay thermostat mixer has no usable hot water surface.
    In a second series of experiments, the inventors studied how they could supply the hot water for cleaning in the best and easiest way possible, which led to the development of the manifold. Decisive for the cleaning efficiency and for the branch pipe check valve / ejector action was found to be that the distance between the branch pipe outlet for hot water (11) and the heat exchanger inlet for wastewater (2) is larger than two drain pipe diameters, and that the angle (13) between the branch pipe pipe and the pipe is sufficiently small and angled downstream towards the inlet (2) of the heat exchanger, see Table 1. The inventors have shown that if the angle (13) is too large (greater than 55 degrees), or if the distance between the outlet of the manifold for hot water (11) and the inlet of the heat exchanger for wastewater (2) is too small (less than two 12 (13) drain pipe diameters) the cleaning water flows out of the drain pipe out of the particle screen (9), see table 1. Optimal ratio between the distance between the branch pipe outlet for hot water (11) and the heat exchanger inlet for wastewater (2) was found to be the same even when using different nozzle geometries and cross-sectional areas.
    Table 1 Experimental installation Distance from outlet branch pipe (11) to the heat exchanger inlet for wastewater (2) [number of drain pipe diameters (length)] Angle (13) between branch pipes (10) and drain pipes (6) [degrees] Nozzle diameter [mm] Outcome 1.8 (65 mm) Not working 1.8 (65 mm) 3 Not working 1.8 (65 mm) Not working 1.8 (65 mm) 7 Not working 1.8 (65 mm) 60 Not working 2.0 (72 mm) Good function 2.0 (72 mm) 3 Good function 2.0 (72 mm) Good function 2.0 (72 mm) 7 Good function 2.0 (72 mm) 60 Not working 4.0 (144 mm) Good function 4.0 (144 mm) 3 Good function 4.0 (144 mm) Good function 4.0 ( 144 mm) 7 Good function 4.0 (144 mm) 60 Non-functioning 13 (13) Example 2: Exemplary embodiments of the invention: Figure 1 a shows an exemplary system for heat theater recovery from shower water containing a heat exchanger (1) which has an inlet for hot waste water (2), an outlet for waste water (3), an inlet for cold fresh water (4) and an outlet for heated fresh water (5). The heat exchanger is designed so that the cold fresh water flows in the opposite direction through the heat exchanger in relation to the hot wastewater, so that heat exchange according to the countercurrent principle arises so that heat energy Iran transfers the hot waste water to the cold fresh water. The system also has a particle screen (9) which is located upstream of the system and has the task of preventing hair and other larger particles from entering and tapping the heat exchanger again. Between the particle screen and the heat exchanger is a drain pipe (6) which leads the hot waste water from the particle screen (9) into the heat exchanger inlet for waste water (2). On the drain pipe is a branch pipe (10) which has an outlet for hot water (11) which opens into the drain pipe. In this way, hot water with high pressure can be introduced into the heat exchanger via the drain pipe in order to wash away grease and other precipitates from the heat exchanger.
    Figure 1 b shows the connection of the branch pipe (10) to the drain pipe (6).
    The branch pipe (6) is connected so that the distance from the branch pipe outlet hot water (11) and the drain pipe outlet for wastewater (8) is greater than two drain pipe diameters (12). The angle (13) between the branch pipe hot water inlet and the drain pipe is less than 55 degrees.
    权利要求:
    Claims (14)
    [1]
    A heat exchanger (1) having an inlet for wastewater (2), an outlet for wastewater (3), an inlet for cold fresh water (4) and an outlet for heated fresh water (5); A drain pipe (6) having an inlet for wastewater (7) and an outlet for wastewater (8); C) a particle screen (9) arranged upstream of the sewage inlet for wastewater (7); where the outlet of the waste pipe for waste water (8) is connected to the inlet of the heat exchanger for waste water (2) and where the heat exchanger (1) is designed so that the cold fresh water flows in the opposite direction through the heat exchanger (1) in relation to the hot waste water. the countercurrent principle arises so that heat energy from the hot wastewater Overfors to the cold fresh water is characterized by a branch pipe (10) with an outlet for hot water (11) being connected to the drain pipe (6) so that the branch pipe outlet for hot water (11) flows into the drain (6) at a position downstream of the waste water inlet of the drain pipe (7) but upstream of the outlet of the waste water pipe (8).
    [2]
    System according to claim 1, where the outlet pipe for hot water (11) is connected to the drain pipe (6) at a distance from the heat exchanger inlet for waste water (2) which is at least twice the diameter of the drain pipe (12) and where the branch pipe outlet for hot water (11) is directed downstream in the drain pipe (5) at an angle (13) less than 55 degrees in relation to the drain pipe (6)
    [3]
    A system according to any one of the preceding claims wherein the manifold has an inlet for hot water (14) connected to a hot water cold (15) 2 (3)
    [4]
    A system according to claim 3, wherein the hot water source (15) contains water with a temperature of at least 50 degrees
    [5]
    System according to claims 3-4, where the hot water source (15) contains water with a pressure of at least 2 bar
    [6]
    A system according to claims 3-5 wherein the system comprises a hot water shut-off valve (16) for controlling a flow of hot water from the hot water source (15) to the drain pipe (6) where the shut-off valve (16) is located between the hot water branch pipe outlet (11) and hot water cold (15)
    [7]
    System according to any one of the preceding claims, where the heat exchanger has an efficiency of at least 60 ° / 0, preferably at least 65 ° / 0, preferably at least 70 cY0
    [8]
    System according to one of the preceding claims, in which the heat exchanger outlet for heated fresh water (5) is connected to a shower mixer (17).
    [9]
    System according to claim 8, wherein the shower mixer (17) is connected to a hot water cold (15) containing water with a temperature of at least 50 degrees
    [10]
    System according to claims 8-9 containing a shower nozzle (18) which is connected to the shower mixer (17) via a water pipe for temperate water (19).
    [11]
    System according to any one of the preceding claims, comprising a shut-off valve for waste water (20) located downstream of the heat exchanger outlet for waste water (3)
    [12]
    Shower cubicle (22) or shower cubicle base containing a system according to claims 1-11 3 (3)
    [13]
    A method of cleaning a heat exchanger in a system according to claims 1-11, comprising cleaning the heat exchanger (1) by introducing water with a temperature of at least 50 ° C and a pressure of at least 2 bar into the drain pipe (6) through the branch pipe ( 10)
    [14]
    Use of a system according to claims 1-11 for heat theater recovery from shower water
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    AT509362A1|2009-11-18|2011-08-15|Peter Dipl Ing Dr Schuetz|DEVICE FOR WATER TREATMENT|
    US20110155366A1|2009-12-03|2011-06-30|Joshua Brunn|Grey water heat recovery system|
    DE102010040609A1|2010-09-13|2012-03-15|Bayerische Motoren Werke Aktiengesellschaft|Repair method for removing deposits from e.g. heat exchanger for heating inner chamber of vehicle in automotive industry, involves accommodating fluid to container wall when fluid flows through container, and removing fluid from container|
    ITMI20110465A1|2011-03-24|2012-09-25|Rosella Rizzonelli|HEAT EXCHANGER DEVICE.|CN106400898A|2016-11-01|2017-02-15|赵海慧|Waste heat recovery shower head|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1330095A|SE539107C2|2013-08-06|2013-08-06|System for energy recovery from shower water and method for cleaning a heat exchanger|SE1330095A| SE539107C2|2013-08-06|2013-08-06|System for energy recovery from shower water and method for cleaning a heat exchanger|
    PCT/SE2014/000105| WO2015020580A1|2013-08-06|2014-08-06|System for energy recovery and cleaning of heatexchangers in shower applications|
    EP14834739.6A| EP3030843B1|2013-08-06|2014-08-06|System for energy recovery and cleaning of heatexchangers in shower applications|
    US15/013,602| US9777932B2|2013-08-06|2016-02-02|System for energy recovery and cleaning of heat exchangers in shower applications|
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