Pipe fixture, water appliance and method for recovering heat from pipe fixture

Abstract

A pipe fixture, a water appliance, and a method for recovering heat from a pipe fixture are disclosed. The conduit fixture includes a water channel configured to contain water, a first plate shaped according to a cross-section of the water channel and spaced apart from the water channel by a first distance, and a second plate shaped according to a cross-section of the water channel and spaced apart from the water channel by a second distance. A voltage between the first plate and the second plate is generated based on water in the water channel.

Description

[0001] Cross - Reference to Related Applications

[0002] This application claims the benefit of priority to U.S. Provisional Application No. 63 / 623,031, filed on January 19, 2024, the entire disclosure of which is incorporated herein by reference. Technical Field

[0003] This application generally relates to the field of hydrothermal recirculation in water-using appliances and plumbing fixtures. Background Art

[0004] Water is heated for many household applications or appliances (such as dishwashers, sinks, showers, etc.). Thermal energy is typically applied to the upstream water of the appliance via a water heater. After the water reaches its intended use, energy is lost when the heated water escapes down the drain to the sewer or other wastewater disposal. Hydrothermal recirculation devices and technologies recover energy before the energy leaves the house or other building. The following embodiments include improvements to hydrothermal recirculation devices and technologies. Summary of the Invention

[0005] This application provides a plumbing fixture, comprising:

[0006] A water channel configured to receive water;

[0007] A first plate shaped according to the cross-section of the water channel and spaced apart from the water channel by a first distance; and

[0008] A second plate shaped according to the cross-section of the water channel and spaced apart from the water channel by a second distance,

[0009] wherein a voltage between the first plate and the second plate is generated based on the water in the water channel.

[0010] In an exemplary plumbing fixture, the first plate is formed of a first metal and the second plate is formed of a second metal.

[0011] In an exemplary plumbing fixture, the voltage between the first plate and the second plate is generated based on a difference between the temperature of the water in the water channel and the ambient temperature.

[0012] In an exemplary plumbing fixture, further comprising:

[0013] A battery configured to store charge from the voltage between the first plate and the second plate.

[0014] In an exemplary plumbing fixture, further comprising:

[0015] A radio, which can be operated by a current induced from a voltage between the first plate and the second plate.

[0016] In an exemplary pipe fixture, further comprising:

[0017] A controller configured to receive user input and activate at least one electronic component in response to the user input by a current induced from a voltage between the first plate and the second plate.

[0018] In an exemplary pipe fixture, further comprising:

[0019] An indicator that can be operated by a current induced from a voltage between the first plate and the second plate.

[0020] In an exemplary pipe fixture, further comprising:

[0021] A regulating circuit configured to regulate a current induced from a voltage between the first plate and the second plate.

[0022] In an exemplary pipe fixture, further comprising:

[0023] A switch configured to activate at least one electronic component by a current induced from a voltage between the first plate and the second plate.

[0024] In an exemplary pipe fixture, the water channel is connected to at least one of a toilet, a bidet, a shower, a washbasin, or a water heater.

[0025] This application also provides a water-using appliance, comprising:

[0026] A water container for containing water or allowing water to pass through it;

[0027] A first plate shaped to be spaced apart from the water container by a first distance; and

[0028] A second plate shaped at a second distance from the water container,

[0029] wherein the voltage between the first plate and the second plate is generated based on a temperature difference between the water in the water container and the surrounding environment.

[0030] In an exemplary water-using appliance, the water container is a toilet tank.

[0031] In an exemplary water-using appliance, the water container is a sanitary pipe.

[0032] In an exemplary water-using appliance, the water container is connected to a bidet bar.

[0033] In an exemplary water-using appliance, the water container is connected to a shower head.

[0034] In an exemplary water-using appliance, the water container is connected to a water heater.

[0035] In an exemplary water-using appliance, the water container is connected to a washbasin.

[0036] The present application also provides a method for recovering heat from a pipe fixture, the method comprising:

[0037] Receiving sensor data of a water-using appliance for connection to the pipe fixture;

[0038] Activating a thermoelectric cell in response to the sensor data, the thermoelectric cell comprising a first plate and a second plate, the first plate being shaped according to a cross-section of the pipe fixture and spaced apart from the pipe fixture by a first distance, and the second plate being shaped according to a cross-section of the pipe fixture and spaced apart from the pipe fixture by a second distance; and

[0039] Applying a voltage between the first plate and the second plate to an electronic component of the water-using appliance.

[0040] In an exemplary method, the first plate is formed of a first metal and the second plate is formed of a second metal.

[0041] In an exemplary method, the voltage between the first plate and the second plate is generated based on a difference between a temperature of water in the pipe fixture and an ambient temperature.

[0042] The present application also provides a method for recovering heat from a pipe fixture, the method comprising:

[0043] Receiving a voltage across a thermoelectric cell associated with the pipe fixture, the thermoelectric cell comprising a first plate and a second plate, the first plate being shaped according to a cross-section of the pipe fixture and spaced apart from the pipe fixture by a first distance, and the second plate being shaped according to a cross-section of the pipe fixture and spaced apart from the pipe fixture by a second distance; and

[0044] Applying the voltage between the first plate and the second plate to an electronic component associated with the pipe fixture.

[0045] In an exemplary method, further comprising:

[0046] Receiving sensor data of a water-using appliance for connection to the pipe fixture; and

[0047] Activating the thermoelectric cell in response to the sensor data.

[0048] The present application also provides a wastewater heat recovery device for a structure, the wastewater heat recovery device comprising:

[0049] At least one heat radiation device;

[0050] A first connector that couples the at least one heat radiation device and at least one water-using appliance; and

[0051] A second connector that couples the at least one heat radiation device and a sanitary path leaving the structure.

[0052] In an exemplary wastewater heat recovery device, the at least one heat radiation device is configured to heat a room.

[0053] In an exemplary wastewater heat recovery device, the at least one heat radiation device is configured to heat a water pipe spaced apart from the wastewater heat recovery device.

[0054] In an exemplary wastewater heat recovery device, the at least one heat radiation device is configured to heat a shower receiver.

[0055] In an exemplary wastewater heat recovery device, further comprising:

[0056] A water supply pipe having a predetermined path passing through the at least one heat radiation device.

[0057] In an exemplary wastewater heat recovery device, the predetermined path includes a meandering path.

[0058] In an exemplary wastewater heat recovery device, the predetermined path includes a turbulator.

[0059] In an exemplary wastewater heat recovery device, the predetermined path includes a corrugated shape.

[0060] In an exemplary wastewater heat recovery device, further comprising:

[0061] A chamber adjacent to the at least one heat radiation device, wherein the chamber includes at least a portion of the water pipe and a interstitial fluid.

[0062] In an exemplary wastewater heat recovery device, further comprising:

[0063] A wastewater pipe connecting the first connector and the second connector; and

[0064] A chamber adjacent to the wastewater pipe, wherein the chamber includes at least a portion of the water supply pipe and a interstitial fluid.

[0065] The present application also provides a wastewater heat recovery device for a structure, the wastewater heat recovery device comprising:

[0066] A wastewater pipe fixture configured to receive wastewater from at least one water-using appliance;

[0067] A water supply pipe configured to supply water to the at least one water-using appliance at least indirectly; and

[0068] A radiator that radiates heat from the wastewater to the water in the water supply pipe.

[0069] In an exemplary wastewater heat recovery device, the water supply pipe leads to the radiator.

[0070] In an exemplary wastewater heat recovery device, the water supply pipe is connected to a water heater, and the at least one water-using appliance is located downstream of the water heater.

[0071] In an exemplary wastewater heat recovery device, the radiator further radiates heat from the wastewater to the surrounding environment of the radiator.

[0072] In an exemplary wastewater heat recovery device, further included is:

[0073] A bypass pipe connected to the water supply pipe, wherein the bypass is configured to bypass the radiator.

[0074] In an exemplary wastewater heat recovery device, further included is:

[0075] A temperature sensor configured to collect sensor data for the wastewater pipe fixture or the wastewater; and

[0076] A valve configured to open the bypass pipe in response to the sensor data.

[0077] In an exemplary wastewater heat recovery device, the temperature sensor is located upstream or downstream of the radiator.

[0078] In an exemplary wastewater heat recovery device, the temperature sensor is a first temperature sensor, and the sensor data is first sensor data. The wastewater heat recovery device further includes:

[0079] A second temperature sensor configured to collect second sensor data for the water supply pipe or the water carried by the water supply pipe, wherein the valve is configured to open the bypass pipe in response to the second sensor data.

[0080] In an exemplary waste heat recovery device for wastewater, the valve is configured to open the bypass pipe in response to a difference between the first sensor data and the second sensor data.

[0081] This application also provides a method for wastewater heat recovery, the method comprising:

[0082] Providing a thermal connection between a wastewater pipe fixture or a water supply pipe, the wastewater pipe fixture being configured to receive wastewater from at least one water-using appliance, and the water supply pipe being configured to supply water to the at least one water-using appliance at least indirectly;

[0083] Receiving sensor data for the wastewater pipe fixture or for the water supply pipe; and

[0084] Actuating a valve in response to the sensor data to open or close a bypass across the thermal connection.

[0085] In an exemplary method for wastewater heat recovery, the thermal connection is implemented by a radiator configured to radiate heat from the wastewater to the water in the water supply pipe.

[0086] This application also provides a pipe fixture comprising:

[0087] A first pipe associated with wastewater;

[0088] A second pipe associated with a water supply; and

[0089] A gap-filling fluid located between the first pipe and the second pipe, and the gap-filling fluid being configured to improve heat transfer from the wastewater to the water supply in the second pipe.

[0090] In an exemplary pipe fixture, the second pipe crosses the circumference of the first pipe for a plurality of rotations.

[0091] In an exemplary pipe fixture, the first pipe is substantially vertical, and each of the plurality of rotations is at a predetermined angle with respect to a horizontal plane or a vertical plane.

[0092] In an exemplary pipe fixture, further comprising:

[0093] A chamber enclosing the gap-filling fluid, wherein the chamber supports the second pipe.

[0094] In an exemplary pipe fixture, the first pipe supports the chamber.

[0095] In an exemplary pipe fixture, the second pipe includes an appliance-facing connector that is at least indirectly coupled to a water-using appliance, and the first pipe includes an appliance-facing connector that is coupled to an outlet of the water-using appliance.

[0096] In an exemplary pipe fixture, the first pipe is connected to a sewage system.

[0097] In an exemplary pipe fixture, further comprising:

[0098] A clamp configured to clamp the chamber to the first pipe.

[0099] In an exemplary pipe fixture, the second pipe includes a water supply connector.

[0100] The present application also provides a pipe fixture, comprising:

[0101] A first pipe associated with wastewater; and

[0102] A second pipe associated with a water supply and including a tube pattern in a plurality of directions, the tube pattern being configured to improve heat transfer of water from the wastewater to the second pipe.

[0103] In an exemplary pipe fixture, the tube pattern includes a meandering path for the shape of the second pipe.

[0104] In an exemplary pipe fixture, the tube pattern includes a longitudinal wave pattern in the flow direction of the second pipe.

[0105] In an exemplary pipe fixture, the tube pattern is inside the second pipe.

[0106] In an exemplary pipe fixture, the tube pattern is provided by a turbulator.

[0107] In an exemplary pipe fixture, the tube pattern is defined by a flat panel heat exchanger including a plurality of holes for the second pipe.

[0108] In an exemplary pipe fixture, further comprising:

[0109] A chamber supported by the first pipe and enclosing the second pipe.

[0110] In an exemplary pipe fixture, the chamber includes a gap-filling fluid configured to improve heat transfer from the wastewater to the water supply.

[0111] The present application also provides a method for reducing fouling in a wastewater heat recovery system, the method comprising:

[0112] Receive operation data for the wastewater heat recovery system; and

[0113] Actuate a cleaning system in response to the operation data for the wastewater heat recovery system.

[0114] In an exemplary method, the operation data includes usage time, schedule, temperature, volume, or image sensors for one or more water channels of the wastewater heat recovery system.

[0115] In an exemplary method, the operation data includes sensor data from a feedback sensor.

[0116] In an exemplary method, the cleaning system is configured to process one or more channels of the wastewater heat recovery system.

[0117] In an exemplary method, the cleaning system includes ultraviolet lamps located inside one or more channels of the wastewater heat recovery system.

[0118] In an exemplary method, the cleaning system includes a cleaning compound dispenser.

[0119] In an exemplary method, the cleaning system includes a nanobubble generator located inside one or more channels of the wastewater heat recovery system.

[0120] In an exemplary method, the cleaning system includes an ozone generator located inside one or more channels of the wastewater heat recovery system.

[0121] This application also provides a wastewater recovery system, comprising:

[0122] A first pipe associated with wastewater; and

[0123] A second pipe associated with a water supply and including treatment equipment for reducing scale or fouling within the wastewater recovery system.

[0124] In an exemplary wastewater recovery system, further comprising:

[0125] A feedback sensor configured to detect a condition in the first pipe or the second pipe, wherein the treatment equipment is activated in response to data from the feedback sensor.

[0126] In an exemplary wastewater recovery system, the treatment equipment includes ultraviolet lamps.

[0127] In an exemplary wastewater recovery system, the treatment equipment includes a cleaning compound dispenser.

[0128] In an exemplary wastewater recovery system, the treatment device includes a nano-bubble generator.

[0129] In an exemplary wastewater recovery system, the treatment device includes an ozone generator, and the ozone generator is located inside one or more channels of the wastewater heat recovery system.

[0130] This application also provides a control system for a wastewater heat recovery device, and the control system includes:

[0131] At least one septic-side temperature sensor configured to measure the temperature of the wastewater pipe fixture;

[0132] At least one drinking-side temperature sensor configured to measure the temperature of the water supply pipe; and

[0133] A controller configured to generate an alarm message based on the temperature of the wastewater pipe fixture and the temperature of the water supply pipe.

[0134] In an exemplary control system, the alarm message includes a command for cleaning the device.

[0135] In an exemplary control system, the command for the cleaning device activates an ultraviolet lamp.

[0136] In an exemplary control system, the command for the cleaning device activates a cleaning compound dispenser.

[0137] In an exemplary control system, the command for the cleaning device activates a nano-bubble generator.

[0138] In an exemplary control system, the command for the cleaning device activates an ozone generator.

[0139] In an exemplary control system, it further includes:

[0140] A communication interface configured to transmit the alarm message through a network.

[0141] In an exemplary control system, the alarm message is sent to a central control device for maintaining the wastewater heat recovery device.

[0142] In an exemplary control system, the alarm message is sent to a mobile device associated with a user of the wastewater heat recovery device.

[0143] In an exemplary control system, it further includes:

[0144] A display configured to display the alert message, the alert message including an indication of a potential failure of the wastewater heat recovery device.

[0145] In an exemplary control system, the at least one septic tank side temperature sensor includes an input side sensor for the wastewater pipe fixture and an output side sensor for the wastewater pipe fixture.

[0146] In an exemplary control system, the at least one drinking side temperature sensor includes an input side sensor for the water supply pipe and an output side sensor for the water supply pipe.

[0147] This application also provides a wastewater heat recovery device for a structure, the wastewater heat recovery device including:

[0148] A wastewater pipe fixture configured to receive wastewater from at least one water-using appliance;

[0149] A water supply pipe fixture configured to supply water to the at least one water-using appliance at least indirectly; and

[0150] A controller configured to generate an alert message based on the temperature of the wastewater pipe fixture and the temperature of the water supply pipe fixture.

[0151] In an exemplary wastewater heat recovery device, the controller includes a learning model based on the historical usage patterns of the wastewater heat recovery device.

[0152] In an exemplary wastewater heat recovery device, the historical usage patterns include historical values for the temperature of the wastewater pipe fixture and the temperature of the water supply pipe fixture.

[0153] In an exemplary wastewater heat recovery device, the learning model includes one or more thresholds for the current values of the temperature of the wastewater pipe fixture and the temperature of the water supply pipe fixture based on hourly, daily, seasonal, or annual trends.

[0154] In an exemplary wastewater heat recovery device, the temperature of the wastewater pipe fixture includes sensor data from an input side sensor for the wastewater pipe fixture and sensor data from an output side sensor for the wastewater pipe fixture.

[0155] In an exemplary wastewater heat recovery device, the temperature of the water supply pipe fixture includes an input side sensor for the water supply pipe fixture and an output side sensor for the water supply pipe fixture.

[0156] The present application also provides a method for developing a learning model for a wastewater heat recovery device, the method comprising:

[0157] Receiving a first plurality of temperature values for a wastewater pipe fixture from at least one septic tank side temperature sensor;

[0158] Receiving a second plurality of temperature values for a water supply fixture from at least one drinking side temperature sensor; and

[0159] Generating a learning model for predicting a fault of the wastewater heat recovery device based on the first plurality of temperature values and the second plurality of temperature values.

[0160] In an exemplary method, the first plurality of temperature values includes at least one input side value and at least one output side value for the wastewater pipe fixture, and wherein the second plurality of temperature values includes at least one input side value and at least one output side value for the water supply fixture.

[0161] The present application also provides a compost heat recovery device system, comprising:

[0162] A compost bin;

[0163] A pipe;

[0164] A first connector that couples to the pipe and a water supply; and

[0165] A second connector that couples to the pipe and at least one water-using appliance, wherein the compost bin generates heat applied to the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0166] According to an exemplary embodiment, exemplary embodiments are described herein with reference to the following drawings.

[0167] Figure 1 Illustrates an exemplary electrical energy extraction device for a pipe fixture.

[0168] Figures 2A to 2F Illustrates Figure 1 An exemplary cross-section of a pipe fixture of.

[0169] Figure 3 Illustrates an exemplary water recirculation system.

[0170] Figure 4 Illustrates an exemplary toilet including an electrical energy extraction device.

[0171] Figure 5 Illustrates an exemplary washbasin connected to an electrical energy extraction device.

[0172] Figure 6An exemplary kitchen appliance including an electric energy extraction device is illustrated.

[0173] Figure 7 An exemplary shower appliance for use with an electric energy extraction device is illustrated.

[0174] Figure 8 An exemplary bathtub for use with an electric energy extraction device is illustrated.

[0175] Figure 9 An exemplary bidet for use with an electric energy extraction device is illustrated.

[0176] Figure 10 An exemplary heat recovery device is illustrated.

[0177] Figure 11 An exemplary heat recovery system is illustrated.

[0178] Figure 12 An exemplary heat recovery system is illustrated.

[0179] Figure 13 An exemplary heat recovery system is illustrated.

[0180] Figure 14A An exemplary pipe fixture for a heat recovery device is illustrated.

[0181] Figure 14B Another exemplary pipe fixture for a heat recovery device is illustrated.

[0182] Figure 15A Another exemplary pipe fixture for a heat recovery device is illustrated.

[0183] Figure 15B Another exemplary pipe fixture for a heat recovery device is illustrated.

[0184] Figure 15C Another exemplary pipe fixture for a heat recovery device is illustrated.

[0185] Figure 16 An exemplary alarm device for a waste heat recovery system is illustrated.

[0186] Figure 17 An exemplary heat recovery device for a composting system is illustrated.

[0187] Figure 18 An exemplary controller for use in any of the heat recirculation systems is illustrated.

[0188] Figure 19 An illustration is provided for Figure 18 an exemplary flowchart of a controller.

[0189] Figure 20 illustrates another exemplary flowchart for a Figure 18 controller.

[0190] Figure 21 illustrates another exemplary flowchart for a Figure 18 controller.

[0191] Figure 22 illustrates another exemplary flowchart for a Figure 18 controller. DETAILED DESCRIPTION

[0192] The following embodiments include devices and techniques for recovering energy from water stored in plumbing fixtures or plumbing equipment or from water passing through plumbing fixtures or plumbing equipment. If energy can be recovered before the water leaves the house, the cost of heating the water supply is reduced. In many cases, energy is recovered from wastewater that has a temperature higher than the ambient temperature. In other cases, energy can be recovered from water that is colder than the ambient temperature. The following embodiments include plumbing equipment such as faucets, toilets, bathtubs, and showers. The term "plumbing fixture" encompasses plumbing equipment and refers to a device that is connected to the plumbing system of a house, building, or other structure. Plumbing fixtures include pipes through which water flows and other devices (e.g., mixing valves).

[0193] Figure 1 Illustrates an exemplary electrical energy extraction device 103 for a plumbing fixture. The electrical energy extraction device 103 includes a water channel 10, a first plate 11, a second plate 12, a paste 13, a first cable 14, and a second cable 15. Additional, different, or fewer components may be included.

[0194] The first plate 11 and the second plate 12 may be shaped in the form of a tube. That is, the first plate 11 and the second plate 12 may be cylindrical. The first plate 11 may form the inner surface of the plumbing fixture or tube. The first plate 11 and the second plate 12 may form part of the tube such that the water channel 10 passes through the first plate 11 and the second plate 12. The first plate 11 and the second plate 12 are shaped according to the cross-section of the water channel 10. In some examples, the first plate 11 may be adhered or otherwise coupled to the inside of the tube, and the second plate 12 may be adhered or otherwise coupled to the outside of the tube.

[0195] The first plate 11 is spaced from the water channel 10 by a first distance (e.g., water may contact the first plate 11, or water may contact an intermediate layer or coating that transfers thermal energy from the water to the first plate 11). The second plate 12 is spaced from the water channel by a second distance.

[0196] The first plate 11 and the second plate 12 can form a thermoelectric battery. The battery can be cylindrical. The first plate 11 and the second plate 12 are formed of dissimilar metals. Examples include bismuth telluride (Bi2Te3), bismuth selenide (Bi2Se3), and lead telluride (PbTe). In addition, a layered superlattice structure of alternating bismuth telluride (Bi2Te3) and bismuth selenide (Bi2Se3) produced by nanostructuring these materials can be applied to the first plate 11 and / or the second plate 12.

[0197] When the first plate 11 and the second plate 12 are subjected to a temperature difference, a current is generated in the battery and travels through the cables 14 and 15 and the associated electrical load. The battery can exhibit the Peltier effect (e.g., as a complement or alternative to the Seebeck effect and / or the Thomson effect). When there is a temperature difference between two points in a conductive material, an electromotive force is generated between these two points. As described above, in some examples, the battery forms a water channel 10. The first plate 11 is affected by the water within the water channel 10. The second plate 12 is affected by the ambient temperature.

[0198] In many cases, the water traveling through the water channel 10 is warmer than the surrounding environment, causing the battery to generate a current. The current can be small, but sufficient to operate low-power electronic devices. These electronic devices can include light-emitting diodes (LEDs), radio devices, segmented displays, or other circuits. The current can be used to charge the battery. The water channel 10 can be associated with wastewater. The wastewater can be warm and considered a waste, and is sent to the sewer or other destinations outside the house or building. The following embodiments utilize the heat of the wastewater to provide power to one or more components.

[0199] The length along the tube or the power extraction device 103 forming the tube can affect the voltage or current provided to the power extraction device 103. The cross-section of the power extraction device 103 can also be changed to increase the contact area of the power extraction device 103 and affect the induced voltage or induced current. The various cross-sections also have an impact on the reduction of the thermal boundary layer in the water flow. Therefore, the first plate 11 will reach a higher temperature and the energy extraction will be improved. A rectangular cross-section with a high aspect ratio will be the most effective in this regard.

[0200] Figure 2A and Figure 2B illustrates the circular cross-sectional area of the power extraction device 103. In Figure 2B a paste 13 (e.g., a temperature-efficient paste) can be placed between the first plate 11 and the second plate 12. Any example herein can include the paste 13 or omit the paste 13.

[0201] Figure 2C illustrates an exemplary elliptical power extraction device 103. The elliptical shape has a larger surface area than the circular surface area.Figure 2D Illustrated is a cross-sectional area of a polygon (such as a hexagon) for an electric energy extraction device 103. The hexagonal cross-section has a larger surface area per length than a circular cross-sectional area. Figure 2E Illustrated is a star-shaped cross-sectional area for an electric energy extraction device 103. The star-shaped cross-section has a larger surface area per length than a circular or star-shaped cross-sectional area.

[0202] Figure 2F Illustrated is another type of thermoelectric cell formed by concentric tubes. In this case, the inner tube 31 forming the first channel 34 corresponds to the first plate 11. The outer tube 32 forming the second channel 33 corresponds to the second plate 12. Thus, the inner tube 31 and the outer tube 32 are dissimilar metals that form a thermoelectric cell and generate an electric current based on the temperature gradient between the liquids in the first channel 34 and the second channel 33. Both channels can carry water, one can carry water and the other can carry a mixture of other materials. The flows in the first channel 34 and the second channel 33 can be in the same direction or in opposite directions.

[0203] Figure 3 Illustrated is an exemplary toilet and a water recycling system. The toilet includes a channel 56 (e.g., a sewage channel) that is configured to extend from a basin 40 (e.g., an outlet or a water outlet) to a drain pipe 49 (e.g., a sewage pipe), and the drain pipe 49 is connected to the sewage channel 56 or other connectors at a gasket 48. The gasket 48 can be provided on the floor of a building (e.g., a structure, a residence, etc.) in which the toilet is installed. The toilet can be configured as a siphon toilet, in which the channel 56 is configured as a siphon sewage channel to form a siphon during a flushing cycle to discharge waste contents from the basin 40 to the drain pipe 49.

[0204] The toilet can also include a greywater system that introduces greywater into the toilet. The greywater system can be configured to capture and store greywater recovered from water-using appliances (e.g., a shower). According to an exemplary embodiment, the greywater system includes a collection device configured to capture or collect greywater, a storage device configured to store the collected greywater before use, and a delivery device configured to introduce the greywater into the toilet during a flushing cycle. It should be noted that the toilet disclosed herein can include any combination of a storage device and a collection device / system.

[0205] Figure 3Including a greywater system, the greywater system includes a water tank 41 and a pipe 55, and the pipe is configured to introduce the captured greywater into the sewage discharge passage 56 of the toilet during the flushing cycle. The greywater system includes a collection device in the form of a pipe 43 and a discharge port 42, and the discharge port 42 is configured to capture shower water from the bathtub / shower. The greywater system may also include a pump 47 or other suitable device configured to move the recycled shower water from the collection device to the storage device (such as the water tank 41) (e.g., by fluid pressure). The water tank 41 can be connected to the shower via a supply pipe (e.g., via the discharge port 42), and the supply pipe includes one or more of a first horizontal section 44, a vertical section 45, and / or a second horizontal section 46.

[0206] As shown in the figure, the storage device is a container configured to hold a specified volume of greywater therein. The size (e.g., volume) of the storage device can vary, for example, to meet the expected use of the toilet. In other words, the volume that the storage device can hold can be customized according to the specific application or type of the residence where the toilet is installed.

[0207] The toilet may include a valve 57 (e.g., a valve assembly) disposed between the outlet of the storage device and the sewage discharge passage 56, where the valve 57 controls the flow of greywater from the storage device to the sewage discharge passage 6 (e.g., volume, time, etc.). The valve 74 is configured to open and close to allow or block (e.g., stop) the flow of greywater therethrough. The valve 57 can be controlled mechanically, electronically, or in combination (e.g., using an actuator (e.g., a lever arm, a button, or other device)). The actuator can be a button configured to send an electronic signal to a solenoid (or other suitable device) when pressed, and the solenoid controls the opening and closing of the valve 57. The timing of the valve 57 (e.g., when to open and when to close) can be changed to adapt the operation of the valve 57 to the performance of the toilet. For example, the valve 57 can open about one to two seconds before siphoning. In other examples, the greywater system can be directly connected to the water tank of the toilet or the rim channel of the toilet.

[0208] The greywater system may also include a distribution subsystem for distributing excess or additional greywater (e.g., when the storage device is full). The distribution subsystem includes a first distribution pipe, a second distribution pipe 58, and a third distribution pipe 50 connected to the water tank. The first distribution pipe can be fluidly connected to the storage device and the third distribution pipe 50. For example, the first distribution pipe can be disposed at the top of the storage device to discharge excess greywater from the storage device when the storage device is full.

[0209] The second distribution pipe 58 can be fluidly connected to the collection device and the third distribution pipe 50. For example, the second distribution pipe 58 can be configured to direct excess greywater to the third distribution pipe 50 when the storage device is full of greywater.

[0210] In one example, the electrical energy extraction device 103 is disposed on (or integrated with) the distribution pipe. For example, Figure 3 the electrical energy extraction device 103 at the distribution pipe 58. In one example, the electrical energy extraction device 103 is disposed on (or integrated with) the supply pipe. These locations of the electrical energy extraction device 103 can be used alone or in combination in some embodiments.

[0211] The controller 100 (e.g., the control circuit) can direct power to one or more electronic devices associated with the toilet or the gray water system. In some examples, the power is stored in a battery and provided to the electronic devices over time. In other examples, the power is provided directly to the electronic devices when it is generated.

[0212] The electronic device can include an indicator implemented as a light-emitting diode (LED) or other lamp.

[0213] The gray water tank indicator 51 can indicate whether there is water in the tank 41 for flushing the toilet. The gray water tank indicator 51 can be electrically connected to a water level sensor in the tank 41.

[0214] The toilet indicator 52 can indicate whether there is water in the toilet tank 59 available for flushing the toilet. The toilet indicator 52 can be electrically connected to a water level sensor in the toilet tank 59. The toilet indicator 52 can indicate the flushing settings of the toilet (e.g., flushing volume, cleaning). The toilet indicator 52 can include a night light. The night light can be electrically coupled to a proximity sensor.

[0215] The bidet indicator or bidet device 53 can indicate whether the water in the bidet is heated, or whether the bidet is powered on or activated. The bidet indicator can be electrically coupled to a water sensor for detecting the water in the bidet. The bidet indicator 53 can be electrically coupled to a pressure sensor in the seat. The bidet indicator can be electrically coupled to the power circuit of the bidet device 53. The bidet device 53 can be configured to distribute water from the rear or front of the toilet basin 40.

[0216] Alternatively, the bidet device 53 can be a heater, pump, lamp, or fan in the bidet. That is, the controller 100 can provide control to one or more of the heater, pump, lamp, or fan in the bidet.

[0217] The toilet seat device 54 may include an indicator for the toilet seat that indicates any of the toilet states or toilet settings described herein. The toilet seat device 54 may include a heater for the toilet seat. Accordingly, the controller 100 is configured to supply power from the power extraction device 103 to the toilet seat. The toilet seat device 54 may include a sanitary device (e.g., a sprayer or an ultraviolet lamp). The toilet seat device 54 may include a motor for raising and / or closing the toilet seat and / or the toilet seat cover.

[0218] The controller 100 (e.g., a control circuit) regulates the current or voltage supplied by the power extraction device 103. The controller 100 may detect the electrical characteristics of the generated current or voltage to supply power from the power extraction device 103 to the indicator or other electronic devices. When the electrical characteristics in the generated current or voltage exceed a threshold, the controller 100 closes a switch to connect the power extraction device 103 to the indicator or other electronic devices.

[0219] The controller 100 may supply power for flushing the toilet to an actuator. The actuator may be a button configured to send an electronic signal to a solenoid (or other suitable device) when pressed, where the solenoid controls the opening and closing of a valve for the toilet tank 59 or a valve 57 for the gray water tank 41. The controller 100 may supply power to the solenoid for opening and closing a valve for an edge jet or a sump jet.

[0220] Figure 4 An exemplary toilet for use with the power extraction device 103 on a water container is illustrated. Refer to Figure 4 FIG. 12, a toilet 1100 with a power extraction device 103 is illustrated in an exemplary embodiment according to the present disclosure. The toilet 1100 may include a water tank shown as tank 101 (e.g., a container, a reservoir, etc.), and a base shown as base 1104 (e.g., a base, a bracket, a support, etc.). The water tank 101 may be coupled to and supported by the base 1104, which may be positioned on the floor. In some embodiments, the water tank 101 and the base 1104 may be formed together as a single component. In some other examples, the water tank 101 may be mounted on or within a nearby wall. The water tank 101 is configured to receive water (e.g., via a fill valve of the toilet 1100, etc.) and store water between flushes. The base 1104 includes a basin 1105 and may be configured to receive water from the water tank 101 to flush the contents in the basin into a sewer pipe. In some embodiments, the base 1104 may be mounted on a wall of a washbasin, and the basin may be configured to receive water from a fluid supply source (e.g., a household water supply).

[0221] The basin 1105 of the pedestal 1104 includes a sump (e.g., a container) and an outlet opening, where water and waste are collected in the sump until removed through the outlet opening (e.g., when flushing the contents of the basin into the sewer line). The toilet 1100 further includes a sewage passage, and the sewage passage can be fluidly connected to the basin 1105 via the sump. The sewage passage fluidly connects the sump to the outlet opening.

[0222] The electrical energy extraction device 103 can include a first plate located inside the water tank 101 and a second plate located outside the water tank 101. The water inside the water tank 101 generally has a lower temperature than the air in the surroundings of the toilet 1100 and the water tank 101. In response to the temperature difference, an electric current is provided from the electrical energy extraction device 103. The electric current can be provided to the electronic device 60, which can include one or more displays, indicators, or inputs.

[0223] The display or indicator can display the status information of the toilet 1100. The status information can include the flushing style selection or the current stage in the flushing cycle. Exemplary flushing style selections can include a low flushing volume or a high flushing volume. Exemplary flushing style selections can include whether a chemical compound is added to the water tank 101.

[0224] The input (e.g., a touch screen or a button) can receive an input or a selection from the user. The user can select the flushing volume, control the bidet, operate the heated seat ring, turn on the night light, or other functions. Any of these functions can be operated by a remote control device. The remote control device can be charged by the electronic device 60.

[0225] The electronic device 60 can be a cleaning compound generator configured to generate chlorine, ozone, or other cleaning substances. The electronic device 60 can apply an electric charge to the water to electrolyze the water.

[0226] The electronic device 60 can also monitor the electrical energy extraction device 103. The electronic device 60 can record the electric current generated by the electrical energy extraction device 103. The electronic device 60 can determine whether an error or a malfunction has occurred in the electrical energy extraction device 103. The electronic device 60 can deactivate the electrical energy extraction device 103 in response to the error or the malfunction. The electronic device 60 can activate or deactivate the electrical energy extraction device 103 in response to a user input.

[0227] The electronic device 60 can include sensors or otherwise receive sensor data. The sensors can be powered by the electrical energy extraction device 103. In the case of automatically starting a flushing cycle, the controller 100 can receive the sensor data indicating the use of the toilet. For example, the controller 100 can communicate with a sensor configured to detect the presence of a user and start a flushing cycle in response to the user leaving the vicinity of the toilet.

[0228] The sensor can include any type of sensor configured to detect a particular action and / or provide a function (e.g., dispense, flush, etc.). The sensor can include any type of sensor configured to detect a particular condition and / or provide a function. Odor sensors, proximity sensors, and motion sensors are non-limiting examples of sensors that can be used in the system of the present application. Odor sensors, such as volatile organic compound (VOC) sensors, can be used to detect organic chemicals and compounds, including both man-made and naturally occurring chemicals / compounds. Proximity sensors can be used to detect the presence of an object within a detection area without physical contact between the object and the sensor. Electrostatic sensors, capacitive sensors, projected capacitive sensors, and infrared sensors (such as projected infrared sensors, passive infrared sensors) are non-limiting examples of proximity sensors that can be employed in the system of the present application. Motion sensors can be used to detect motion (e.g., a change in the position of an object relative to the location surrounding the object). Electrostatic sensors, optical sensors, radio frequency (RF) sensors, acoustic sensors, magnetic sensors (such as magnetometers), vibration sensors, and infrared sensors (such as projected infrared sensors, passive infrared sensors) are non-limiting examples of motion sensors that can be employed in the system of the present application.

[0229] In another example, the sensor can include a sensor configured to detect the water level. The sensor can include a float sensor, a pressure level sensor, an ultrasonic water level transmitter, a capacitive level sensor (e.g., RF sensor), and a radar level sensor. Additionally, an optical sensor can be used to determine the water level. When the sensor indicates that a predetermined water level has been reached, the electrical energy extraction device 103 can be activated by the controller 100.

[0230] Figure 5 An exemplary washbasin or sink 106 and a faucet 112 connected to the electrical energy extraction device 103 (thermoelectric cell) are illustrated. The sink 106 can be connected to a plumbing system (e.g., including a hose or tube 105) that is connected to the electrical energy extraction device 103. The tube 105 receives wastewater that may have a high temperature through an outlet 127 connected to the bottom 102 of the sink 106. The electrical energy extraction device 103 can extend from the outlet 127 to a connection with the trap 108. That is, the electrical energy extraction device 103 is connected to the outlet 127 and connected to the trap 108 such that the electrical energy extraction device 103 is a freestanding plumbing fixture that can be added to any washbasin. Additional, fewer, or different components may be included.

[0231] The sink 106 can include faucet electronics 61 and / or sink electronics 62 that receive power from the electrical energy extraction device 103 in accordance with an adjustment by the controller 100.

[0232] The faucet electronic component 61 may include a proximity sensor or a gesture sensor configured to detect a movement of a user to open or close the faucet 112, or to provide another option (e.g., temperature) to the faucet 112. The faucet electronic component 61 may include an indicator (e.g., an LED) indicating whether the faucet is open or closed (e.g., whether the valve is open or closed). Alternatively or additionally, the indicator may represent the temperature of the water (e.g., the degree to which the hot valve is open or closed).

[0233] Similarly, the sink electronic component 62 may include a proximity sensor for detecting the position of a user using the sink 106 or a gesture sensor for detecting a command to the faucet. The sink electronic component 62 may indicate the temperature of the water of the faucet 112. The sink electronic component 62 may indicate whether the sink 106 is clean. The sink electronic component 62 may include an atomizing device, a chemical sprayer, or an atomizing device.

[0234] Figure 6 An exemplary kitchen appliance used with the power extraction device 103 is illustrated, and the power extraction device 103 is placed in a straight line with the plumbing system. The kitchen equipment may include one or more of a kitchen faucet 21, a dishwasher 22, a garbage disposal 23, a refrigerator 24, a water heater 25a, and a water filter. The water heater 25 (including a water tank 25a, a water supply 25b, and an optional fuel supply 25c) may provide heated water to other appliances. Each of the smart kitchen devices may be connected to a water supply 27 and a drain outlet 28. The water supply may include the power extraction device 103. Additional, different, or fewer components may be included.

[0235] In one example, all the water provided from the water heater 25 passes through the power extraction device 103 via the water supply 25b. Alternatively, the power extraction device 103 may be placed on the drain outlet 28 of one or more of the devices such that the energy extraction device 103 extracts energy from the wastewater when the wastewater leaves the kitchen.

[0236] The water supply 25b may include a water filter to filter water before the water is provided to any of the other kitchen devices or to the power extraction device 103. The water filter may include various settings, which include filtration modes targeting specific contaminants. For example, the water filter may include a lead filtration mode that can target the removal of lead from water, a bacteria filtration mode that can target the removal of bacteria from water, or a specific particle filtration mode for removing specific particles from water. The refrigerator 24 may include a water dispenser 30. Alternatively, the water dispenser 30 may be a freestanding device or another type of beverage dispenser.

[0237] The control circuit can receive the output of the power extraction device 103 and supply power to one of the kitchen appliances. The power extraction device 103 can power the display. The power extraction device 103 can power an indicator (e.g., an LED) indicating the status of one of the kitchen appliances. The integrated kitchen indicator 29 can provide the status of any one of the appliances or provide the status of the kitchen as a whole. The power extraction device 103 can supply power to sensors for monitoring one or more of the kitchen appliances. The power extraction device 103 can include a radio for wireless communication between one of the kitchen appliances and a mobile device.

[0238] Figure 7 An exemplary shower appliance for use with the power extraction device 103 is illustrated. The shower enclosure 190 includes a shower cubicle and several shower subsystems (i.e., a water supply subsystem, an audio subsystem, a steam subsystem, a lighting subsystem, etc.). Each of the shower subsystems has output devices (e.g., a shower outlet, a flow control valve, a temperature control valve, a solenoid associated with the valve, a lighting device, an audio output system, a steam outlet, etc.) configured to provide an enhanced shower experience to the user of the shower. The shower enclosure 190 can include a plurality of water distributors 191, sensors 192, and at least one control panel 195. The control panel 195 includes an electronic display. The electronic display is configured to display a graphical user interface to allow the user to control the various shower subsystems and / or shower output devices.

[0239] The shower enclosure 190 includes a water subsystem having various output devices (i.e., shower outlets) located within the shower cubicle. For example, the shower enclosure 190 is shown to include a plurality of water distributors 191, which include a front showerhead, a left showerhead, a right showerhead, an upper body spray, a middle body spray, a lower body spray, a side body spray, a handheld shower, and a rain showerhead. In various embodiments, the water subsystem or group of output devices can include any number of output devices or combinations of output devices. For example, in an alternative exemplary embodiment, the water subsystem can include a central body spray (e.g., a vertical column of the shower outlet) in place of the upper body spray and the middle body spray. In another exemplary embodiment, the left showerhead and the right showerhead can be located on the front wall. The shower outlet can be located on any one of a plurality of surfaces and can include additional or fewer shower outlets in various embodiments.

[0240] The power extraction device 103 can be placed in line with the drain outlet 197 of the shower cubicle. Water from any one of the output devices is collected at the drain outlet 197 and flows through the power extraction device 103.

[0241] The controller 100 can activate and deactivate the power extraction device 103 based on the operation of the shower room 190, a predetermined schedule, or feedback from one or more sensors 192. The sensors 192 can be proximity sensors or motion sensors that determine when a user is present in or using the shower room.

[0242] The power extraction device 103 can provide power to operate the electronic display of the control panel 195. In different embodiments, the controller 100 can be integrated with the control panel 195, physically separated from the control panel 195, or partially integrated with and partially separated from the control panel 195. The control panel 195 can include a touch-sensing panel (e.g., a capacitive touch screen) covering the electronic display, manually operated buttons (e.g., capacitive touch buttons), and / or other user input devices configured to receive user input and provide the user input to the controller 100. The control panel (e.g., via the controller) controls the various components of the shower room in response to receiving user input (e.g., a signal or data representing the user input) at the user input device.

[0243] In some embodiments, the control panel 195 is configured to receive user input for controlling the shower subsystem and for transmitting the settings and status information of the shower subsystem to the user. The control panel 195 generally includes a housing and an electronic display (e.g., an LCD panel). The housing includes various attachment points (e.g., brackets, fasteners, portions for receiving screw heads, etc.) for mounting the control panel 195 within the shower room. The housing also provides a waterproof enclosure to protect the electronic display and associated internal electronic components from moisture. A touch-sensitive panel (e.g., a capacitive touch panel) can also be provided on the housing for receiving user input. A portion of the touch-sensitive panel can cover the electronic display to provide a touch screen interface. The electronic display can be made to display a graphical user interface and receive user input via the touch screen interface.

[0244] In addition to or alternatively to the display and the control panel 195, the power extraction device 103 can provide power to one or more LEDs indicating the status and operation of the shower room.

[0245] Figure 8Illustrated is an exemplary bathtub 401 for use with an electrical energy extraction device 103. The bathtub 401 includes a body 412 configured to hold water and a base 411 configured to support the body 412 and including a main drain 410. The body 412 may also include a side drain 414 that connects a supply pipe 404 to the electrical energy extraction device 103. A pump 416 may cause water passing through the side drain 414 to be recycled through the supply pipe 404 to the electrical energy extraction device 103. The electrical energy extraction device 103 may generate electricity according to any of the embodiments herein and provide the electricity to an indicator 419. The indicator 419 may include an LED or a display for providing the status of the bathtub 401 or one or more associated systems.

[0246] The electrical energy extraction device 103 may be placed at a drain, the body 412, or another location of the bathtub 401 that does not recycle or include any pump 416. In another example, not illustrated, the electrical energy extraction device 103 may be disposed in the main supply line of the bathtub. That is, the electrical energy extraction device 103 may be coupled between the water line supply and the faucet of the bathtub 401.

[0247] Figure 9 Illustrated is an exemplary bidet wand 337 for use with an electrical energy extraction device 103. The bidet wand 337 may be integrated with a toilet 301 or a toilet seat assembly 332. The electrical energy extraction device 103 may be located in a chamber 303 and may be accessible via a cover 331. A water storage tank may provide warm water for the bidet wand 337 or for a pipe supplying the bidet wand 337. After using the bidet wand 337, excess water in the water storage tank may provide a temperature gradient to the electrical energy extraction device 103. Additionally or alternatively, a front wash bidet may be positioned near the front of a toilet for female users and implemented in a similar type of energy extraction device 103.

[0248] The electrical energy extraction device 103 may generate electricity according to any of the embodiments herein and provide the electricity to an indicator 420. The indicator 420 may include an LED or a display for providing the status of the bidet or one or more associated systems.

[0249] Figure 10 Illustrated is an exemplary heat recovery device 80. The heat recovery device 80 may include at least one heat radiation device, an appliance-facing connector, a connector or tube (first connector) 84, and a supply-facing connector, a connector or tube (second connector) 83. Additional, different, or fewer components may be included.

[0250] The heat recovery device 80 can be thermally connected to or adjacent to the wastewater pipe 91. The wastewater pipe 91 can carry the discharged water from one or more water-using appliances. The wastewater pipe 91 can empty into a sanitary path 92 (e.g., a sewer pipe, a sewage system, or a septic system).

[0251] In some examples, the heat recovery device 80 is a coiled pipe 82 wound around the wastewater pipe 91. The coiled pipe 82 connects the appliance-facing connector 84 and the supply-facing connector 83. Water from the water supply flows through the supply-facing connector 83, through the coiled pipe 82, and into the appliance-facing connector 84, where the water is supplied to one or more water-using appliances through a plumbing system. The coiled pipe 82 can extend around the circumference of the wastewater pipe 91 multiple times. Examples include pipes 82 that wrap around the wastewater pipe 91 from 3 to 20 times. The pipe 82 can be in direct contact with the wastewater pipe 91. The pipe 82 can be separated from the wastewater pipe 91 by a thermally conductive adhesive, paste, or fluid. Heat is transferred from the wastewater pipe 91 to the pipe 82, and the water inside the pipe is heated based on the heat transfer. The heat absorbed into the water supply conserves the energy required to heat the water later (e.g., in a water heater). Countercurrent flow can provide the highest efficiency.

[0252] In some examples, the heat recovery device 80 additionally or alternatively includes a radiator 86. The radiator 86 can include one or more chambers configured to hold a fluid and release heat from the fluid to the ambient air. The radiator 86 can include one or more chambers configured to hold air or other gases and release heat from the fluid to the ambient air. In some examples, the pipe 82 passes through the radiator 86 to provide heat exchange. In some examples, the radiator 86 radiates heat directly from the wastewater pipe 91. In some examples, both paths for heat exchange occur. In some examples, the pipe 82 is omitted.

[0253] The heat recovery device 80 radiates heat from the wastewater pipe 91 to the surrounding air. In this way, the heat from the discharged water is used to heat a house or building. The heat recovery device 80 can be placed in a specific room. One example is a basement, but any room is possible.

[0254] Figure 11 An exemplary heat recovery system including the heat recovery device 80 in a basement is illustrated, where the wastewater pipe 91 and the supply line (including the supply-facing connector 83 and the appliance-facing connector 84) both lead to the basement to absorb heat through the heat recovery device 80 and the wastewater.

[0255] In Figure 11In the example, the bypass path 69 is used as a supply-facing connector of the supply line and an appliance-facing connector 84 of the supply line to bypass the heat recovery device 80. The bypass path 69 includes a pipe, a hose, or other water channels. When the valve V is open, the water supply follows the bypass path 69. When the valve V is closed, the water supply is provided to the heat recovery device 80 to receive heat transfer of energy from the wastewater pipe 91. In some examples, the bypass path 69 only bypasses the radiator 86. In some examples, the bypass path 69 is used to select one of multiple paths through the heat recovery device 80.

[0256] The valve V can be manually operated using a lever. The valve V can be electronically and / or automatically operated using a solenoid of other drive mechanisms under the command of the controller 100. The controller 100 can operate the valve V for the bypass path in response to sensor data.

[0257] In one example, the controller 100 receives sensor data from the wastewater-side sensor S1 and / or the water supply-side sensor S2. Thus, in some examples, the temperature sensor is upstream of the radiator in either or both of the wastewater pipe 81 and the water supply path 82. In other examples, the temperature sensor can be located downstream of the radiator, or both upstream and downstream of the radiator.

[0258] When the wastewater-side sensor S1 indicates that the wastewater is higher than a predetermined temperature, the controller 100 can open the valve V. When the water supply-side sensor S2 indicates that the water supply is lower than a certain temperature, the controller 100 can open the valve V. In other examples, the controller 100 can determine the difference between the value from the wastewater-side sensor S1 and the value from the water supply-side sensor S2. When the difference between the value from the wastewater-side sensor S1 and the value from the water supply-side sensor S2 is lower than a predetermined threshold, the controller 100 can open the valve V to activate the bypass path 69. In other words, when the temperatures of the water supply and the wastewater are too close, the heat recovery device 80 is bypassed.

[0259] In one example, the values of the wastewater-side sensor S1 and the water supply-side sensor S2 are related to a flow sensor. In this example, the controller 100 can determine whether the water supply and / or the wastewater pipe 91 is activated (i.e., has a significant flow, a non-zero flow, or a flow exceeding a predetermined minimum flow rate). When one or both of the flow rates are higher than the predetermined minimum flow rate, the heat recovery device 80 is used (the bypass path 69 is not opened). In other words, when the water supply and / or the wastewater is not in operation, the heat recovery device 80 is bypassed.

[0260] A system including a controller 100, a wastewater-side sensor S1, a water supply-side sensor S2, and a heat recovery device 80 performs a technique for performing wastewater heat recovery. First, the heat recovery device 80 provides a thermal connection between a wastewater pipe fixture 81 configured to receive wastewater from at least one water-using appliance and a water supply pipe 82 configured to supply water to at least one water-using appliance at least indirectly. The controller 100 receives sensor data from the wastewater pipe fixture 81 and the water supply pipe 82. The controller 100 is configured to actuate a valve V to open or close a bypass path 69 across the thermal connection in response to the sensor data.

[0261] Figure 12 An exemplary heat recovery system is illustrated where the heat recovery device 80 is spaced from a supply line including a supply-facing connector 83 and an appliance-facing connector 84. In this case, wastewater is provided from a wastewater pipe 91 to the heat recovery device 80 and then enters a sanitary path 92. Heat is recovered by the heat recovery device 80 and / or a radiator 86 to release heat into the room. Heat can also be radiated to the water supply line, which partially heats the water supply entering the house or building. At least one heat radiation device is configured to heat a water pipe spaced from the wastewater heat recovery device 80.

[0262] In one example, water enters a building at a first temperature (e.g., 41 degrees Fahrenheit) and is raised to a second temperature (e.g., 60 degrees Fahrenheit) through the use of the heat recovery device 80. Specifically, the heat recovery device 80 can receive wastewater from the wastewater pipe 91 at a third temperature (e.g., 95 degrees Fahrenheit) and release heat into the room, which also heats the supply line (as shown by arrow 88).

[0263] Figure 13 An exemplary heat recovery system is illustrated where the heat recovery device 80 is placed near a shower 190. The heat recovery device 80 can be placed in an adjacent room or in the floor below the shower 190. Heat radiated from the heat recovery device 80 and / or the radiator 86 (as shown by arrow 88) is provided to the head of a shower receiver 89. The shower receiver can be a tray or surface in the floor of the shower 190. Water consumed at the shower 190 can be provided through a drain outlet 197 into the wastewater pipe 91. Heat from the water is radiated back from the heat recovery device 80 to the shower receiver 89, heating the floor of the shower 190. Simultaneously or alternatively, heat can be provided to the water entering the shower at the supply 81. Additional, different, or fewer components can be included.

[0264] Figures 14A to 14B and Figures 15A to 15CAn exemplary embodiment of the path of the pipes of the water supply pipe 82 and the wastewater pipe 81 passing through the heat recovery device 80 is illustrated. The water supply pipe 82 can take various forms, including a pipe pattern in which the water flow is in multiple directions. The pipe pattern is configured to improve the heat transfer of water from the wastewater to the first pipe. The pipe pattern can include a meandering path for the shape of the first pipe, a longitudinal wave pattern in the flow direction of the first pipe, or a turbulator. The pipe pattern can be inside the water supply pipe 82. Additional, different, or fewer components can be included.

[0265] In Figure 14A it, the chamber 97 is connected to the wastewater pipe 81. The wastewater pipe 81 can support the chamber 97. The chamber 97 can support the water supply pipe 82. The chamber includes a heat-conducting fluid 93. It is generally difficult or expensive to provide a tight thermal connection between the inner and outer walls of the two pipes. The heat-conducting fluid can fill these unexpected gaps. The heat-conducting fluid 93 improves the heat transfer between the water supply pipe 82 and the wastewater pipe 81. The heat-conducting fluid 93 can be an interstitial fluid 93.

[0266] Examples of the heat-conducting fluid 93 include ethylene glycol, propylene glycol, silicone oil, and water. The heat transfer fluid can be selected based on their high heat capacity, viscosity, boiling point, and corrosion resistance.

[0267] The chamber 97 can be adjacent to at least one heat radiation device. The heat radiation device can be the wastewater pipe 81. The heat radiation device can be the radiator 86. Fasteners (e.g., clamps) can be used to fix the chamber 97 to at least one heat radiation device.

[0268] Figure 14B Another exemplary pipe fixture 82 for a heat recovery device is illustrated. In this example, the pipe fixture 82 includes a meandering path. The meandering path can be applied to the water supply pipe 81 around the circumference of the wastewater pipe 81. The meandering path can extend in a first direction and a second direction substantially perpendicular to the first direction. The radiator 86 can also include a pipe or chamber having a meandering path.

[0269] Figure 15A Another exemplary pipe fixture 82 for a heat recovery device including a corrugated structure 181 is illustrated. The corrugated structure 181 can include inner waves of plastic or metal. The corrugated structure 181 disrupts the path of the water passing through the pipe fixture 82. The corrugated structure 181 can turn the laminar flow passing through the pipe fixture 82 into turbulent flow. Turbulent flow has a thinner thermal boundary layer at the wall and thus has a greater heat transfer coefficient. The water is circulated or otherwise flows in an indirect problem to increase the heat transfer from the pipe fixture 82 to the water. Alternatively or additionally, a similar corrugated structure 181 can be installed inside the wastewater pipe 81 to increase the heat transfer from the wastewater to the wastewater pipe 81.

[0270] Figure 15B Illustrated is another exemplary pipe fixture 82 for a heat recovery device 80 that includes a turbulator 182. The turbulator 182 may have a helical shape. The turbulator 182 may have a double helical shape. The turbulator 182 may turn laminar flow passing through the pipe fixture 82 into turbulent flow. The turbulator 182 may have the shape of a twisted tape.

[0271] Water is circulated or otherwise flows indirectly in a loop to increase heat transfer from the pipe fixture 82 to the water. Alternatively or additionally, a similar corrugated structure 181 may be installed within the wastewater pipe 81 to increase heat transfer from the wastewater to the wastewater pipe 81.

[0272] Figure 15C Illustrated is another exemplary fixture 94 for a heat recovery device. The fixture 94 may be a plate made of a material having a high thermal conductivity. The fixture 94 may be a flat panel heat exchanger. Multiple turns of a water supply pipe 82 may be mounted on the fixture 94. The fixture 94 may also be in contact with the wastewater pipe 81. The fixture may also provide a heat path between the multiple turns of the water supply pipe 82 and the wastewater pipe 81.

[0273] Figure 16 Illustrated is an alarm system for an exemplary heat recovery device 80. Fouling is a problem that can affect the operation of the heat recovery device 80 (e.g., the efficiency of heat exchange). When surfaces are dirty, they transfer heat at a lower efficiency. Fouling can be combated from the inside by several methods. Some treatments include ultraviolet (UV) lights, coatings on the inner walls of the tubes, or a disinfection dispensing system for the walls (atomized steam, ozone dispensing, nanobubble dispensing, solid or liquid chemical dispensing).

[0274] An example of dispensing a solid or liquid chemical includes phosphate beads. The phosphate beads may be stored in a sieve or cage within the heat recovery device 80. When water flows through the sieve or cage, contact with the phosphate beads causes the beads to slowly dissolve. Dissolving the beads alters the interaction of the water with one or more minerals (e.g., iron, calcium, etc.) to reduce scale on the inner surface of the heat recovery device 80.

[0275] A feedback system that includes temperature sensors may also monitor fouling or other conditions that cause a deterioration in the efficiency of the heat recovery device 80. One or more treatments may be applied in response to the monitored conditions of the heat recovery device 80. Additional, different, or fewer components may be included.

[0276] As in other embodiments, the wastewater pipe 81 is thermally connected to the water supply coil 82. Thermal energy (e.g., heat) is transferred from the wastewater pipe 81 to the water supply coil 82. A controller 100 is connected to one or more temperature sensors for monitoring the wastewater heat recovery device 80.

[0277] The alarm system can include two or more sensors associated with the wastewater heat recovery device. The alarm system can include at least one septic side temperature sensor and at least one potable side temperature sensor. The at least one septic side temperature sensor is configured to measure the temperature of the wastewater pipe fixture, and the at least one potable side temperature sensor is configured to measure the temperature of the water supply pipe. Each of the sensors generates sensor data describing the temperature of a specific part of the wastewater recovery device. The at least one septic side temperature sensor measures the temperature associated with the wastewater pipe 81. The at least one potable side temperature sensor measures the temperature associated with the water supply coil 82.

[0278] In one example, the controller 100 uses the data measured by the temperature sensors to identify the baseline performance (or initial performance) within a set time period (or baseline period). The subsequent measurements of the temperature sensors for the continuous performance are compared with the baseline performance. When the performance drops below a specific level, the controller 100 generates an alarm.

[0279] More specifically, the controller 100 calculates one or more baseline values of the wastewater recovery device 80. The baseline value can be based on the ratio of the temperature change in the water supply pipe 82 (potable side) to the temperature change in the wastewater pipe 81 (septic side). The at least one potable side temperature sensor includes an input side sensor Tpin for the water supply pipe 82 and an output side sensor Tpout for the water supply pipe 82. The temperature change in the water supply pipe 82 can be the difference Tpout - Tpin. The at least one septic side temperature sensor includes an input side sensor Ts in for the wastewater pipe fixture 81 and an output side sensor Tsout for the wastewater pipe fixture 81. The temperature change in the wastewater pipe 81 can be the difference between Ts in - Tsout.

[0280] When the ratio is low (e.g., the ratio decreases over time), it is an indication of less heat transfer occurring in the wastewater recovery device 80. In other words, the system becomes less efficient, which can be an indication of scaling or other accumulation within the wastewater recovery device 80.

[0281] As shown in Equation 1, the ratio of the temperature change Delta T (ΔT) to heat explains the thermal efficiency of the system. The continuous performance at any time t is represented by the ratio of the temperature change to heat. The baseline performance is the ratio of the initial temperature value to the heat value. When the system is operating at maximum efficiency (e.g., the efficiency of the baseline), the value of Rf(t) = 0. In other words, the function Rf is the thermal resistance caused by scaling, and Rf(0) is initially 0 because there is no scaling in the system initially. X is the selected value or threshold at which the scaling is severe enough to require cleaning. X is a positive number. X can be R (R crit) critical value, at which the wastewater recovery device 80 operates at a specified efficiency or other minimum level.

[0282]

[0283] Since q (heating rate) cannot be directly measured, the temperatures at the inlet and outlet of the water flow provide an accurate estimate of the heating rate q. Multiple values are measured from the temperature sensors, and the controller monitors the performance of the wastewater recovery device 80 over time. For example, as shown in Equation 2 below, the sustained ratio can be calculated as a function of time. The ratio of the temperature change in the water supply pipe 82 to the temperature change in the wastewater pipe 81 is represented by the following formula: Similarly, the baseline value at t = 0 is calculated as

[0284]

[0285] The controller 100 determines when the sustained ratio or ratio of the temperature change in the water supply pipe 82 to the temperature change in the wastewater pipe 81. The controller 100 determines when the difference between the sustained ratio and the baseline ratio exceeds a threshold X.

[0286] The controller 100 is configured to generate an alarm message when the difference between the sustained ratio and the baseline ratio exceeds the threshold X. Thus, the controller 100 generates an alarm message based on the temperature of the wastewater pipe fixture and the temperature of the water supply pipe.

[0287] The alarm message can be an alphanumeric word or code for the user or maintenance technician. The alphanumeric word or code can be presented on a display. The display is configured to display an alarm message including an indication of a potential failure of the wastewater heat recovery device. The message for the user can indicate that the heat recovery device 80 needs to be cleaned. The message for the user can prompt the user to activate the cleaning cycle. The message for the user can include an efficiency value or percentage demonstrating the level of efficiency at which the heat recovery device 80 is operating. The message for the user can indicate that the user should call or request maintenance.

[0288] The alarm message can include one or more communication data packets for network transmission of data related to the heat recovery device 80. The heat recovery device 80 can include or otherwise be connected to a communication interface configured to transmit the alarm message over the network. The heat recovery device 80 can be wirelessly connected or hardwired to the network such that the heat recovery device 80 communicates with one or more external devices.

[0289] An exemplary external device includes a central control device. The central control device may be associated with the manufacturer of the heat recovery device 80 or the maintenance entity of the heat recovery device 80. The heat recovery device 80 may send measurement values through the central control device. The central control device may return commands to the heat recovery device 80. Exemplary commands may include the activation of a cleaning cycle or the activation of any cycle for any of the following subsystems. Alarm messages may also be sent to the central control device to dispatch maintenance for the heat recovery device 80.

[0290] An exemplary external device is a mobile device. The heat recovery device 80 may communicate with the user's mobile device to display an alarm message. The user may also initiate a cleaning cycle or a cycle for any of the following subsystems from user input to the mobile device.

[0291] The alarm message may be an instruction or command for the wastewater recovery system 80 or a subsystem of the wastewater recovery system 80.

[0292] An example subsystem is a cleaning device. The alarm message may include a command for the cleaning device. The cleaning device may include a wiper or a scrubbing pad that abrasively contacts the interior of the wastewater pipe 81 or the water supply pipe 82.

[0293] An example subsystem is a treatment device. The treatment device may include an ultraviolet lamp configured to treat or otherwise provide ultraviolet light to one or more pipes or chambers of the wastewater recovery system 80.

[0294] The treatment device may include a cleaning compound dispenser. The treatment device may mix a chemical solution that includes one or more of hydrogen peroxide, hypochlorous acid, iodine, bromine, chloramine, chlorine dioxide, peracetic acid, quaternary ammonium salts, tetraacetylethylenediamine, phenol, isopropyl alcohol, sodium carbonate, perhydrate, tetraacetylethylenediamine, ethanol, sodium hypochlorite, octanoic acid, or sodium chlorite. The treatment device may mix water from a water source with a solid compound. The water may be sourced from the water supply pipe 82 or the wastewater pipe 81. The water may have a separate source (water pipeline input to the treatment device). The treatment device may dispense the cleaning solution onto the inner wall of the water supply pipe 82 or the wastewater pipe 81 to reduce scaling and improve the efficiency of the heat recovery device 80.

[0295] The processing device may include a nanobubble generator. The controller 100 may generate a command to activate the nanobubble generator for the cleaning device. The nanobubble generator may also generate microbubbles, and the combination of microbubbles and nanobubbles (MNB) in the water-using device and plumbing fixtures may be in various proportions. The term nanobubble may be used to describe bubbles having a diameter of up to about 1 micrometer (μm). The term microbubble may be used to describe bubbles having a diameter of about 1 to 100 μm. There may be additional bubbles when generating MNB, such as bubbles with a diameter of 100 to 1000 μm or larger. Microbubbles are visible to the human eye. Nanobubbles are invisible to the naked eye.

[0296] Some generation processes may be mainly targeted at nanobubbles, while other generation processes may be mainly targeted at microbubbles. Some generation processes may produce bubbles of ozone (trioxide or O3), hydrogen, carbon dioxide gas, or air bubbles, and the air bubbles may include various components or molecules (e.g., nitrogen, oxygen, argon, carbon dioxide, and other gases). Ozone water is a powerful disinfectant that can be generated on-site on a specific device. On-site generation has advantages. One advantage is that no consumable chemicals are required. One problem is that the solubility of ozone in water is slow and limited. Therefore, ozone gas is likely to escape from the water surface and enter the environment.

[0297] The processing device may use a variety of techniques to generate MNB. In one example, a stream of air under pressure is dissolved into a liquid using a nozzle to generate bubbles according to the cavitation principle. The nozzle may be a venturi tube. In cavitation, the static pressure of the liquid is lower than the vapor pressure of the liquid, resulting in the formation of a vapor-filled chamber. The vapor pressure is the pressure that is in thermodynamic equilibrium with other phases (liquid phase and solid phase) at a specific temperature. In another example, MNB is formed by ultrasound to introduce cavitation in the liquid. In another example, MNB is formed by shear force. A stream of air at low pressure is provided, and the shear force is used to break the bubbles into the liquid. The shear force may be vibration provided by fluid oscillation or other methods. The venturi tube may combine a water stream and an air stream. The water stream at the venturi tube forms a shear force to form MNB. The shear force and the size of MNB (e.g., the distribution of various sizes of bubbles) can be adjusted based on the shape of the water channel and air channel, the number of channels, and other characteristics. In addition to air, ozone, other gases, or other compounds may be provided at the opening of the venturi tube. Additional, different, or fewer components may be included.

[0298] The processing device may include an ozone generator. The controller 100 may generate a command to activate the ozone generator for the cleaning device. Various techniques can be used to form ozone, including corona discharge, ultraviolet light, cold plasma, and other techniques. For example, a corona charger can be configured to accumulate charge from a power source and apply the charge to air from an air source.

[0299] Figure 17 An exemplary heat recovery device for a composting system is illustrated. The composting system may include a compost bin 96 and one or more water supply pipes 82 passing through the compost bin 96. The water supply pipe 82 includes a first connector 113 coupled to the pipe and the water supply and a second connector 114 coupled to the pipe and at least one water-using appliance. The compost bin 96 includes organic materials (e.g., food waste, leaves, yard waste, manure, etc.). The organic materials decompose into soil in the compost bin 96.

[0300] Microorganisms (e.g., bacteria and fungi) decompose the organic matter in the compost pile. When the microorganisms consume the organic materials, energy in the form of heat is released. Thus, the compost bin 96 generates heat, which is applied to the water supply pipe 82 and increases the temperature of the water in the water supply pipe 92. Increasing the temperature of the water in the water supply pipe 82 results in less energy being consumed at a water heater or other downstream appliance.

[0301] The water supply pipe 82 in the compost bin 96 may include any of the water turbulence devices described herein, including the waveform structure 181 or the turbulator 182. The water supply pipe 82 may include a fixture 94 that is a plate with high thermal conductivity, and the fixture 94 supports one or more meandering paths of the water supply pipe 82. The water supply pipe 82 in the compost bin 96 may include any of the anti-scaling devices described herein, including an ultraviolet lamp, a cleaning compound dispenser, an ozone generator, or an MNB generator.

[0302] Figure 18 An exemplary controller or control system 100 for any heat recovery system and associated subsystems is illustrated. The controller 100 may include a processor 300, a memory 352, and a communication interface 353 for interacting with devices or the Internet and / or other networks 346. In addition to the communication interface 353, a sensor interface may be configured to receive data from the sensors described herein or data from any source for analyzing air properties or water properties or the operation of the appliances described herein. The components of the control system 400 may communicate using a bus 348. The control system 100 may be connected to a workstation or other external device (such as a control panel) and / or a database for receiving user input, system characteristics, and any values described herein.

[0303] Figure 19 Illustrated for Figure 18Exemplary flowchart of a controller. Additional, different, or fewer actions may be included.

[0304] At action S101, the controller 100 (e.g., the processor 300) receives sensor data associated with a water-using appliance. The sensor data may describe the operation of the water-using device (e.g., run time, selected mode or cycle, detected temperature, or specific electronic components in use). Any of these examples may describe the availability of thermal energy at, downstream of, or upstream of the water-using appliance. The run time may describe the use of the water-using appliance (e.g., whether water is being supplied to the system or how much water is being supplied to the system). The selected mode or cycle may also describe whether water is being supplied to the system or how much water is being supplied and the expected temperature of the water. The temperature of the water may be directly detected by a temperature sensor. Any of these data values may directly indicate or imply which specific electronic components will be used at the water-using appliance.

[0305] At action S103, in response to the sensor data, the controller 100 (e.g., the processor 300) activates a thermoelectric battery. In some examples, the thermoelectric battery is activated only when hot water is available, regardless of whether a certain amount of water is being supplied to the system. In some examples, the thermoelectric battery is activated only when a specific electronic component that can be powered by the thermoelectric battery is in use. Exemplary electronic components are low-power components (e.g., LEDs or some displays).

[0306] At action S105, the thermoelectric battery applies a voltage or a corresponding current to the electronic device for the water-using appliance. The thermoelectric battery generates electricity in response to the activation of the controller 100 and supplies power to the electronic device through a wired connection.

[0307] Figure 20 Illustrates a controller for Figure 18 Exemplary flowchart of a controller. Additional, different, or fewer actions may be included.

[0308] At action S201, the controller 100 (e.g., the processor 300) measures at least one temperature for a drinking water system. The temperature may be based on data received from a temperature sensor at a water supply plumbing fixture.

[0309] At action S203, the controller 100 (e.g., the processor 300) measures at least one temperature for a wastewater system. The temperature may be based on data received from a temperature sensor at a wastewater plumbing fixture.

[0310] At operation S205, the controller 100 (e.g., the processor 300) may calculate the ratio between the absolute temperatures of the wastewater system and the potable water system. Alternatively, the controller 100 (e.g., the processor 300) may calculate the ratio between the changes or derivatives of the temperatures of the wastewater system and the potable water system over time. The reciprocals of these ratios may be used.

[0311] At operation S207, the controller 100 (e.g., the processor 300) may generate an alert message in response to the calculated ratio. The alert message is displayed or sent to an external device when the ratio exceeds a threshold or the difference between the ratio and a baseline exceeds a threshold.

[0312] Figure 21 An example flow chart of operations for the controller 100 is illustrated for creating and / or implementing a learning model to monitor a wastewater heat recovery device using Figure 18 the controller 100. Additional, different, or fewer operations may be included.

[0313] At operation S301, the controller 100 (e.g., the processor 300) receives temperature values of a wastewater pipe fixture from at least one septic side temperature sensor. The septic side temperature sensor includes at least one input side value and at least one output side value regarding the wastewater pipe fixture.

[0314] At operation S303, the controller 100 (e.g., the processor 300) receives a second plurality of temperature values of a water supply fixture from at least one potable side temperature. The second plurality of temperature values includes at least one input side value and at least one output side value regarding the water supply fixture.

[0315] At operation S305, the controller 100 (e.g., the processor 300) generates a learning model for predicting a failure of the wastewater heat recovery device based on the first temperature values and the second temperature values. The learning model may be a neural network, and the first temperature values and the second temperature values are the actual situations or training data for defining the neural network.

[0316] The training data may modify the learning model based on the historical usage patterns of the wastewater heat recovery device. The usage patterns may depend on the number of people living in a house having the wastewater heat recovery device. The usage patterns may depend on a specific schedule or user preferences for water temperature. The historical usage patterns include historical values of the temperature of the wastewater pipe fixture and the temperature of the water supply pipe.

[0317] After being trained, the learning model may include one or more thresholds for the current values of the temperature of the wastewater pipe fixture and the temperature of the water supply pipe based on trends per hour, per day, per season, or per year.

[0318] At operation S307, the controller 100 (e.g., the processor 300) or another control system receives subsequent temperature values from the operation of the wastewater heat recovery device.

[0319] At operation S309, the controller 100 (e.g., the processor 300) or another control system provides the subsequent temperature values to the learning model. The learning model determines whether a fault has occurred. The learning model outputs an indication of a fault based on whether the temperature data indicates that the wastewater heat recovery system is operating incorrectly or inefficiently. The learning model can output an alert message as described herein.

[0320] Figure 22 An exemplary flowchart of the operation of a Figure 18 controller in a method for reducing fouling in a wastewater heat recovery system is shown. Additional, different, or fewer operations may be included.

[0321] At operation S401, the controller 100 (e.g., the processor 300) receives operation data of the wastewater heat recovery system. The operation data may include usage time, schedule, temperature, volume, or image sensors for one or more water channels of the wastewater heat recovery system.

[0322] At operation S403, the controller 100 (e.g., the processor 300) actuates the cleaning system in response to the operation data of the wastewater heat recovery system. Alternatively, the controller 100 may activate a processing device in response to the operation data of the wastewater heat recovery system.

[0323] Optionally, the control system 100 may include an input device 355 and / or a sensing circuit communicatively coupled to any sensor. The sensing circuit receives sensor measurements from those described above. The input device 355 may include a switch (e.g., an actuator), a touchscreen coupled to or integrated with a keyboard, a remote control, a microphone for voice input, a camera for gesture input, and / or other mechanisms.

[0324] Optionally, the control system 100 may include a drive unit 340 for receiving and reading a non - transitory computer medium 341 having instructions 342. Additional, different, or fewer components may be included. The processor 300 is configured to execute the instructions 342 stored in the memory 352 for performing the algorithms described herein. The display 350 may be supported by any of the components described herein. The display 350 may be combined with the user input device 355.

[0325] Processor 300 may be a general-purpose processor or a special-purpose processor, an application-specific integrated circuit (ASIC), one or more programmable logic controllers (PLCs), one or more field-programmable gate arrays (FPGAs), a set of processing components, or other suitable processing components. Processor 300 is configured to execute computer code or instructions stored in memory 352 or received from other computer-readable media (e.g., embedded flash memory, local hard disk memory, local ROM, network memory, remote server, etc.). Processor 300 may be a single device or a combination of devices, such as those associated with a network, distributed processing, or cloud computing.

[0326] Memory 352 may include one or more devices (e.g., memory cells, memory devices, storage devices, etc.) for storing data and / or computer code for performing and / or facilitating the various methods described in this disclosure. Memory 352 may include random access memory (RAM), read-only memory (ROM), hard disk memory, temporary memory, non-volatile memory, flash memory, optical memory, or any other suitable memory for storing software objects and / or computer instructions. Memory 352 may include database components, object code components, script components, or any other type of information structure for supporting the various activities and information structures described in this disclosure. Memory 352 may be communicatively connected to processor 300 via a processing circuit and may include computer code for performing (e.g., by processor 300) one or more methods described herein. For example, memory 298 may include graphics, web pages, HTML files, XML files, script code, sprinkler configuration files, or other resources for generating a graphical user interface for display and / or for interpreting user interface inputs to generate commands, controls, or communication decisions.

[0327] In addition to including an inlet port and an outlet port, communication interface 353 may also include any operable connection. An operable connection may be a connection through which signals, physical communication, and / or logical communication can be sent and / or received. An operable connection may include a physical interface, an electrical interface, and / or a data interface. Communication interface 353 may be connected to a network. The network may include a wired network (e.g., Ethernet), a wireless network, or a combination thereof. The wireless network may be a cellular telephone network, 802.11, 802.16, 802.20, or WiMax network, a Bluetooth pairing of devices, or a Bluetooth mesh network. Additionally, the network may be a public network (such as the Internet), a private network (such as an intranet), or a combination thereof and may utilize various network protocols available now or developed later, including but not limited to TCP / IP-based network protocols.

[0328] Although a computer-readable medium (e.g., memory 352) is shown as a single medium, the term "computer-readable medium" includes a single medium or multiple media, such as a centralized database or a distributed database, and / or associated caches and servers that store one or more sets of instructions. The term "computer-readable medium" should also include any medium that can store, encode, or carry a set of instructions for execution by a processor, or that causes a computer system to perform any one or more of the methods or operations disclosed herein.

[0329] In certain non-limiting, exemplary embodiments, the computer-readable medium may include solid-state memory such as memory cards or other packages that house one or more non-volatile read-only memories. Additionally, the computer-readable medium may be random access memory or other volatile rewritable memory. Further, the computer-readable medium may include magneto-optical or optical media such as disks or tapes or other storage devices to capture carrier signals such as signals communicated through a transmission medium. Digital file attachments of e-mails or other self-contained information archives or sets of archives may be considered a distribution medium of tangible storage media. Accordingly, the present disclosure is considered to include any one or more of computer-readable media or distribution media and other equivalents and subsequent media in which data or instructions may be stored. The computer-readable medium may be non-transitory, which includes all tangible computer-readable media.

[0330] In alternative embodiments, dedicated hardware implementations, such as application specific integrated circuits, programmable logic arrays, and other hardware devices, may be constructed to implement one or more of the methods described herein. Applications that may include devices and systems of various embodiments may broadly include a variety of electronic and computer systems. One or more of the embodiments described herein may be implemented using two or more specific, interconnected hardware modules or devices that have associated control and data signals that may communicate between and through the modules, or as part of an application specific integrated circuit. Accordingly, the present system encompasses software, firmware, and hardware implementations.

[0331] As used herein, the phrase "coupled to" is defined to mean directly connected to or indirectly connected through one or more intermediate components. Such intermediate components may include both hardware and software-based components. Additionally, for purposes of clarification of the use in the pending claims and to hereby provide notice to the public, the phrase " 、 , …… and <n>at least one of "or"< / n> 、 , …… and <n>"at least one or a combination thereof" is defined by the applicant in the broadest sense, superseding any other implicit definition, before or hereinafter, unless the applicant expressly states to the contrary, and means one or more elements selected from the group consisting of A, B, …, and N, that is, any combination of one or more of the elements A, B, …, or N, including any one of the elements alone or in combination with one or more other elements, said other elements also including combinations with additional elements not listed. Further, with respect to the use of the term "or" (e.g., < / n> or ) it is intended to mean " or "or both". When the intention is to mean "only A or B, but not both", the term "only A or B, but not both" will be used.

[0332] The accompanying drawings of the embodiments described herein are intended to provide a general understanding of the structures of the various embodiments. These drawings are not intended to be a complete description of all elements and features of the devices and systems that utilize the structures or methods described herein. Many other embodiments will be apparent to those skilled in the art who review this disclosure. Other embodiments can be utilized and derived from this disclosure, so that structural and logical substitutions and changes can be made without departing from the scope of this disclosure. In addition, the drawings are merely representative and may not be drawn to scale. Some of the scales in the drawings may be exaggerated while others may be minimized. Accordingly, this disclosure and the drawings are to be regarded as illustrative rather than restrictive.

[0333] Although this specification contains many specific details, these should not be construed as limitations on the scope of the invention or of what may be claimed, but rather as descriptions of specific features of particular embodiments of the invention. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable sub-combination. Moreover, although the above features may be described as acting in certain combinations and even initially claimed as such, in some cases, one or more features from a claimed combination can be removed, and the claimed combination can be directed to a sub-combination or variation of a sub-combination.

[0334] One or more embodiments of this disclosure may be referred to herein, individually and / or collectively, by the term "invention" merely for convenience and are not intended to voluntarily limit the scope of this application to any particular invention or inventive concept. Moreover, although specific embodiments have been illustrated and described herein, it should be understood that any subsequent arrangement designed to achieve the same or similar purpose may replace the specific embodiments shown. This disclosure is intended to cover any and all subsequent adaptations or variations of various embodiments. Combinations of the above embodiments, as well as other embodiments not specifically described herein, will be apparent to those skilled in the art upon reading this specification.

[0335] The above detailed description is to be considered illustrative and not restrictive, and it is understood that the following claims, including all equivalents, are intended to define the scope of the invention. The claims should not be construed as limited to the described order or elements unless so stated. Accordingly, all embodiments within the scope and spirit of the following claims and their equivalents are claimed as the invention.

Claims

1. A pipe fixture, comprising: A water channel configured to hold water; A first plate shaped according to the cross-section of the water channel and spaced apart from the water channel by a first distance; And A second plate shaped according to the cross-section of the water channel and spaced apart from the water channel by a second distance, wherein a voltage between the first plate and the second plate is generated based on the water in the water channel.

2. The pipe fixture according to claim 1, wherein the first plate is formed of a first metal and the second plate is formed of a second metal.

3. The pipe fixture according to claim 1, wherein the voltage between the first plate and the second plate is generated based on a difference between the temperature of the water in the water channel and the ambient temperature.

4. The pipe fixture according to claim 1, further comprising: A battery configured to store charge from the voltage between the first plate and the second plate.

5. The pipe fixture according to claim 1, further comprising: A radio operable by a current induced from the voltage between the first plate and the second plate.

6. The pipe fixture according to claim 1, further comprising: A controller configured to receive user input and activate at least one electronic component in response to the user input by a current induced from the voltage between the first plate and the second plate.

7. The pipe fixture according to claim 1, further comprising: An indicator operable by a current induced from the voltage between the first plate and the second plate.

8. The pipe fixture according to claim 1, further comprising: An adjustment circuit configured to adjust the current induced from the voltage between the first plate and the second plate.

9. The pipe fixture according to claim 1, further comprising: A switch configured to activate at least one electronic component by a current induced from the voltage between the first plate and the second plate.

10. The pipe fixture according to claim 1, wherein the water channel is connected to at least one of a toilet, a bidet, a shower, a washbasin, or a water heater.

11. A water-using appliance, comprising: A water container for holding water or allowing water to pass through; A first plate shaped to be spaced apart from the water container by a first distance; And A second plate shaped at a second distance from the water container, wherein a voltage between the first plate and the second plate is generated based on a temperature difference between the water in the water container and the surrounding environment.

12. The water-using appliance according to claim 11, wherein the water container is a toilet tank.

13. The water-using appliance according to claim 11, wherein the water container is a sanitary pipe.

14. The water-using appliance according to claim 11, wherein the water container is connected to a bidet bar.

15. The water-using appliance according to claim 11, wherein the water container is connected to a shower head.

16. The water-using appliance according to claim 11, wherein the water container is connected to a water heater.

17. The water-using appliance according to claim 11, wherein the water container is connected to a washbasin.

18. A method for recovering heat from a pipe fixture, the method comprising: receiving sensor data of a water-using appliance for connection to the pipe fixture; activating a thermoelectric battery in response to the sensor data, the thermoelectric battery comprising a first plate and a second plate, the first plate being shaped according to a cross-section of the pipe fixture and spaced apart from the pipe fixture by a first distance, and the second plate being shaped according to a cross-section of the pipe fixture and spaced apart from the pipe fixture by a second distance; and applying a voltage between the first plate and the second plate to electronic components of the water-using appliance.

19. The method according to claim 18, wherein the first plate is formed of a first metal and the second plate is formed of a second metal.

20. The method according to claim 18, wherein the voltage between the first plate and the second plate is generated based on a difference between a temperature of water in the pipe fixture and an ambient temperature.

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