Water flow charging type hot water directional circulating system

Abstract

The invention belongs to the technical field of domestic water, and particularly relates to a water flow charging type hot water directional circulation system which comprises a water heater, a first pipeline, a second pipeline and at least one circulation branch, a water flow power generation device is arranged on the circulation branch and comprises a water flow power generation module, a driving wheel and a power generator, and the driving wheel and the power generator are installed on the circulation branch; the energy storage module is used for storing the electric energy generated by the generator and supplying power; when the energy storage module is in a low electric quantity state, water flow formed by the circulation branch can drive the driving wheel to rotate and enable the generator to generate electricity, and the energy storage module is charged. According to the invention, weak current can be directly provided for internal electric equipment and external electric equipment through the energy storage module, so that water and electricity separation is realized, the tedious process of strong current wiring in a whole room is reduced, and the decoration cost is saved. Meanwhile, the harm of weak current to human bodies is low, and the electricity utilization safety of the toilet is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of domestic water, and in particular relates to a water flow charging type hot water directional circulation system. Background Art

[0002] Electric leakage in the bathroom happens from time to time in daily life, and this problem should not be underestimated. When the leakage is mild, it will cause damage to various electrical equipment and affect normal use; once the situation is serious, the current will directly threaten the user's life safety and cause irreversible tragedy. Therefore, it is necessary to attach great importance to the safety of electricity use in the bathroom and take practical and effective measures to prevent it.

[0003] At present, with the emergence of smart faucets, smart showers, and smart toilets, there are more and more electricity usage scenarios in the bathroom. It is necessary to add sockets near basins, shower rooms, toilets, etc. to meet user needs, which further increases the circuit wiring area and the risk of leakage. Summary of the invention

[0004] The purpose of the present invention is to provide a water flow charging type hot water directional circulation system which has a simple structure and can realize automatic energy storage and water-electricity separation.

[0005] The object of the present invention is achieved in that:

[0006] A water flow charging type hot water directional circulation system comprises: a water heater having a water heater liquid inlet and a water heater liquid outlet;

[0007] A first pipeline is connected to the liquid outlet of the water heater; a second pipeline is connected to the liquid inlet of the water heater; a circulation pump is arranged on the first pipeline or the second pipeline; and at least one circulation branch is respectively connected to the first pipeline and the second pipeline; a circulation electric control valve is installed on the circulation branch and is used to control the opening and closing of the circulation branch; wherein a water flow power generation device is arranged on the circulation branch, which includes: a water flow power generation module, having a driving wheel and a generator installed on the circulation branch; an energy storage module, which is used to store the electric energy generated by the generator and supply power; and a circulation electric control valve, which is installed on the circulation branch and electrically connected to the energy storage module, and is used to control the opening and closing of the circulation branch; when the energy storage module is at low power, the circulation electric control valve and the circulation pump are opened, and the water flow formed by the circulation branch can drive the driving wheel to rotate and enable the generator to generate electricity, and charge the energy storage module.

[0008] When the circulating electric control valve is opened, the water flow formed by the circulating branch can drive the driving wheel to rotate and enable the generator to generate electricity and charge the energy storage module.

[0009] The present invention is further provided that the water flow power generation device further comprises: a first control module, which is electrically connected to the energy storage module and can directly or indirectly control the circulation electric control valve and the circulation pump to work;

[0010] The energy storage module includes an energy storage battery and a power detection unit. When the power detection unit detects that the power of the energy storage battery is lower than a preset value, the first control module can directly or indirectly control the circulation pump to start working. After the circulation branch is filled with liquid, the water flow power generation module generates electricity and charges the energy storage battery.

[0011] The present invention is further provided that the power generation device also includes a signal transmitting module for connecting to the first control module; the circulating pump is connected to a pump control device, which includes: a second control module for controlling the operation of the circulating pump; and a signal receiving module for receiving the control signal of the signal transmitting module and feeding it back to the second control module.

[0012] The present invention is further provided that the energy storage module has a wiring port for supplying power to an external electrical device, and the wiring port is connected to one or more of a smart faucet, a smart shower, a smart toilet, and a lighting lamp.

[0013] The present invention is further provided with a circulation branch having a first branch connected to the first pipeline and a second branch connected to the second pipeline, the water flow power generation module is arranged on the first branch, and a hot water interface and a circulation electric control valve are respectively arranged at the end of the first branch; when the hot water interface discharges liquid, the water flow formed by the first branch can drive the driving wheel to rotate and enable the generator to generate electricity, and charge the energy storage module.

[0014] The present invention is further provided with a first control module connected to a switch module and a temperature detection module arranged near the hot water interface. After the switch module is turned on, when the water temperature detected by the temperature detection module is lower than the water temperature setting value, the first control module sends a signal to drive the circulation pump to work through the signal transmission module.

[0015] The present invention is further provided that the switch module includes one or more of an infrared sensor, a radar, a laser sensor, and a human body sensor.

[0016] The present invention is further provided with a cold water interface on the second branch, on which a cold water outlet pipe and a cold water control valve for controlling the amount of cold water are installed; the hot water interface is provided with a hot water outlet pipe and a hot water control valve for controlling the amount of hot water, the cold water outlet pipe and the hot water outlet pipe converge to form a constant temperature water installation port, and the cold water control valve and the hot water control valve are electrically connected to the energy storage module.

[0017] The present invention is further provided with an electric three-way valve for electrically connecting to the second control module at the starting position of the second pipeline, the electric three-way valve having a first connecting end connected to the first pipeline and two second connecting ends connected to the second pipeline, and a return pipeline is provided at the first connecting end and the starting position of the first pipeline.

[0018] The present invention is further provided that a sterilizer for connecting to the second control module is provided on the return pipeline.

[0019] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0020] 1. The water flow power generation device of the present invention generates electricity through directional water flow, and stores it through the energy storage module for use by internal and external electrical equipment (smart faucets, smart showers, and smart toilets). The energy storage module provides weak electricity, which directly supplies power to nearby weak-current electrical appliances. In this way, there is no need to arrange 220V strong-current sockets near basins, shower rooms, toilets, etc., thereby achieving water-electricity separation, reducing the cumbersome process of strong-current wiring in the entire room, and saving decoration costs. In addition, even if the energy storage module or the corresponding external electrical equipment leaks electricity, the weak current is less harmful to the human body and will not endanger life, thus ensuring the safety of electricity use in the bathroom.

[0021] 2. The energy storage module of the present invention is provided with an energy storage battery and a power detection unit. When the power detection unit detects that the power of the energy storage battery is lower than the preset power value, the first control module directly or indirectly controls the circulation pump to start working, and at the same time controls the circulation electric control valve to open, so that the circulation branch realizes internal water circulation, thereby allowing the water flow power generation module to generate electricity and realize automatic charging of the energy storage battery.

[0022] 3. The present invention is provided with a reflux pipeline and an electric three-way valve between the starting positions of the first pipeline and the second pipeline. When the energy storage module enters the automatic charging mode, the second control module will control the electric three-way valve to work at the same time when controlling the circulation pump to turn on, so that the second connection end of the electric three-way valve away from the starting end of the second pipeline is connected to the first connection end, which is equivalent to cutting off the passage into the water heater, so that the first pipeline and the second pipeline are directly connected, thereby reducing the waste of hot water resources of the water heater and saving electricity costs.

[0023] 4. The present invention is provided with a sterilizer for connecting to the second control module on the return pipeline. When the energy storage module enters the automatic charging mode, the second control module will control the sterilizer to work at the same time when controlling the circulation pump to turn on, so as to realize internal disinfection and ensure water safety.

[0024] 5. The energy storage module of the present invention can also provide power for the constant temperature water outlet device to meet the needs of different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the first water flow charging type hot water directional circulation system of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the first water flow power generation device of the present invention.

[0027] Figure 3 It is a structural schematic diagram of the second water flow power generation device of the present invention.

[0028] Figure 4 It is a circuit principle diagram of the water flow power generation device of the present invention.

[0029] Figure 5 1 is a circuit diagram of the pump control device of the present invention.

[0030] Figure 6 It is a structural schematic diagram of the second water flow charging type hot water directional circulation system of the present invention.

[0031] Figure 7 It is a schematic diagram of the structure of the second circulation branch of the present invention.

[0032] Figure 8 It is a structural schematic diagram of the third water flow charging type hot water directional circulation system of the present invention.

[0033] The meaning of the symbols in the figure:

[0034] Water heater 1; first pipeline 2; second pipeline 3; circulation pump 4; water flow power generation device 5; pump control device 6; return pipeline 7; electric three-way valve 8; disinfector 9;

[0035] Water heater liquid inlet 11; water heater liquid outlet 12; tap water connecting pipe 13; liquid inlet check valve 14;

[0036] First branch 21; hot water interface 211; hot water outlet pipe 22; hot water control valve 23; hot water angle valve 24; constant temperature water installation port 25;

[0037] Second branch 31; cold water interface 311; cold water outlet pipe 32; cold water control valve 33; cold water angle valve 34;

[0038] Water flow power generation module 51; driving wheel 511; generator 512; three-way valve body 513; energy storage module 52; circulation electric control valve 53; first control module 54; signal transmission module 55; switch module 56; temperature detection module 57; external electrical equipment 58; circulation check valve 59;

[0039] A second control module 61 ; a signal receiving module 62 ; and a power supply 63 . DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with specific embodiments:

[0041] Embodiment 1:

[0042] like Figure 1As shown, a water flow charging hot water directional circulation system is mainly used in the field of smart toilets in residences, villas, and hotels, and can also be used in rooms that require hot water, such as kitchens. It mainly includes a water heater 1, a first pipeline 2, a second pipeline 3, a circulation pump 4, a water flow power generation device 5, and a pump control device 6.

[0043] The water heater 1 has a water heater inlet 11 and a water heater outlet 12. The water heater inlet 11 is connected to a tap water connection pipeline. The tap water connection pipeline 13 is provided with a liquid inlet check valve 14. The liquid inlet check valve 14 can prevent the tap water from flowing back and ensure that the water heater 1 can be smoothly filled with water. The water heater outlet 12 is connected to a first pipeline 2. The first pipeline 2 is a single-channel hot water pipeline for providing hot water. The second pipeline 3 of this embodiment is a single-channel cold water pipeline, which is directly connected to the tap water connection pipeline 13 at the front end of the liquid inlet check valve 14 and is used to directly provide cold water; at the same time, the starting end of the second pipeline 3 can be connected to the water heater inlet 11 through the liquid inlet check valve 14. A circulation pump 4 is provided on the first pipeline 2 or the second pipeline 3. In this embodiment, the circulation pump 4 is provided at the starting end of the second pipeline 3, that is, the water heater inlet 11 connected to the water heater 1.

[0044] At least one circulation branch is provided between the first pipeline 2 and the second pipeline 3, and the circulation branch has a first branch 21 connected to the first pipeline 2 and a second branch 31 connected to the second pipeline 3. At least one hot water angle valve 24 is installed at the end of the first branch 21 for providing hot water to users; at least one cold water angle valve 34 is installed at the end of the second branch 31 for providing cold water to users. The hot water angle valve 24 is generally connected to the hot water inlet end of a faucet or a shower, and a cold water interface 311 is provided on the second branch 31. The cold water angle valve 34 is installed on the cold water interface 311. The cold water angle valve 34 is generally connected to the cold water inlet end of a faucet or a shower. The cold water angle valve 34 and the hot water angle valve 24 form a hot and cold water pipe installation structure at a conventional basin or shower installation location.

[0045] A circulation electric control valve 53 or / and a circulation check valve 59 for preventing cold water from flowing back are arranged between the first branch 21 and the second branch 31. The circulation electric control valve 53 is a normally closed electric control valve. Under normal circumstances, the circulation electric control valve 53 is in a closed state, that is, the circulation branch is in a non-circulation state, so that the hot water angle valve 24 can provide hot water and the cold water angle valve 34 can provide cold water. The two do not affect each other and will not affect the water pressure of other system branches. When the circulation electric control valve 53 is opened, the circulation branch is in a circulation state. At this time, a water flow loop can be formed through the water heater 1, the first pipeline 2, the circulation branch, and the second pipeline 3 in sequence, and the water flow can achieve internal circulation.

[0046] like Figure 2 , 4As shown, a water flow power generation device 5 capable of generating and storing electricity is provided on the circulation branch, which includes a water flow power generation module 51, an energy storage module 52, a first control module 54, a signal transmission module 55, a switch module 56 and a temperature detection module 57.

[0047] The water flow power generation module 51 has a T-shaped three-way valve body 513, a driving wheel 511 installed on the three-way valve body 513, and a generator 512. The three-way valve body 513 has a valve liquid inlet end connected to the first branch 21, a valve liquid outlet end for connecting to the hot water angle valve 24, and a valve circulation end for connecting to the circulation electric control valve 53. The driving wheel 511 is rotatably arranged at the valve liquid inlet end, and a generator 512 is installed outside the valve liquid inlet end. The main shaft of the generator 512 extends into the interior of the valve liquid inlet end and is fixedly connected to the driving wheel 511. When the valve liquid outlet end discharges liquid (that is, when the hot water angle valve 24 discharges liquid) or the liquid at the valve circulation end circulates (that is, when the circulation electric control valve 53 is opened for circulation), the water flow can drive the driving wheel 511 to rotate and realize the generator 512 to generate electricity.

[0048] like Figure 2 As shown, the driving wheel 511 is a bladed impeller, including an impeller body and circumferentially distributed blades. An impeller mounting cavity is provided at the valve liquid inlet end, a portion of the impeller mounting cavity coincides with the flow channel of the valve liquid inlet end, the driving wheel 511 is located in the impeller mounting cavity, one side of the blades is located in the flow channel of the valve liquid inlet end, and the generator 512 is fixed on the outside of the valve liquid inlet end; when there is water flow at the valve liquid inlet end, the blades of the driving wheel 511 rotate accordingly under the action of the water flow, thereby realizing power generation by the generator.

[0049] like Figure 3 As shown, in another embodiment, the driving wheel 511 is a spiral impeller, which is directly installed in the flow channel of the valve inlet end. At this time, the generator 512 is installed between the valve outlet end and the valve circulation end. The main shaft of the generator 512 extends into the inner cavity of the three-way valve body 513 and is fixedly connected to the spiral impeller; when there is water flow at the valve inlet end, the spiral blades of the driving wheel 511 rotate accordingly under the action of the water flow, thereby realizing power generation by the generator.

[0050] The circulating electric control valve 53 is electrically connected to the energy storage module 52 and the first control module 54. The first control module 54 can control the opening and closing of the circulating electric control valve 53. When the circulating electric control valve 53 is opened, the water flow circuit is opened; when the electric control valve 53 is closed, the water flow circuit is closed.

[0051] The energy storage module 52 is used to store the electric energy generated by the generator 512, and can also supply power to the circulating electric control valve 53, the first control module 54, the signal transmitting module 55, the switch module 56, the temperature detection module 57 and the external electrical equipment 58. The energy storage module 52 has a wiring port for supplying power to the external electrical equipment 58, and the wiring port can be connected to the external electrical equipment 58, which includes weak-current electrical appliances such as lighting, smart faucets, smart showers, and smart toilets.

[0052] The water flow power generation device 5 of this embodiment can generate electricity through directional water flow, and store it through the energy storage module 52 for use by internal and external electrical equipment. The energy storage module 52 provides weak electricity, which directly supplies power to nearby weak electrical appliances. In this way, there is no need to arrange 220V strong power sockets near the basin, shower room, toilet, etc., thereby realizing the separation of water and electricity, reducing the cumbersome wiring process of the entire room, and saving decoration costs. In addition, even if the energy storage module 52 or the corresponding external electrical equipment 58 leaks electricity, the weak electricity is less harmful to the human body and will not endanger life, thereby ensuring the safety of electricity use in the bathroom.

[0053] In a frequently used bathroom or kitchen, each hot water flow will drive the driving wheel 511 to rotate and make the generator 512 generate electricity, realizing the passive charging of the energy storage module (i.e., in the passive charging mode of the energy storage module). In this case, the power of the energy storage module 52 can basically meet the normal needs of the applied electrical equipment. However, for the circulation branch that has not been used for a long time, the power of the energy storage module 52 on the circulation branch will decay and cannot provide power to the electrical equipment, which will affect the normal use of the electrical equipment.

[0054] To this end, the energy storage module 52 needs to have an automatic charging mode for the energy storage module. The energy storage module 52 includes an energy storage battery and a power detection unit. The power detection unit can detect the power of the energy storage battery in real time or at a fixed time and feed it back to the first control module 54. When the power detection unit detects that the power of the energy storage battery is lower than the predetermined power value, the first control module 54 directly or indirectly controls the circulation pump 4 to start working, and at the same time controls the circulation electric control valve 53 to open, so that the circulation branch realizes internal water circulation, thereby allowing the water flow power generation module 51 to generate electricity and realize automatic charging of the energy storage battery. When the power detection unit detects that the power of the energy storage battery is higher than the power health value, the first control module 54 directly or indirectly controls the circulation pump 4 to close, and at the same time controls the circulation electric control valve 53 to close, the water flow stops, and the charging of the energy storage module 52 ends.

[0055] In general, since the water flow power generation device 5 is arranged near the water-using equipment in the room, and the circulating pump is arranged in the equipment platform or equipment room outside the room, there is a certain distance between the two. In order to reduce the wiring, the first control module 54 of this embodiment is indirectly operated by the circulating pump 4. Specifically, the water flow power generation device 5 also includes a signal transmitting module 55 connected to the first control module 54, and the signal transmitting module 55 is a wireless signal transmitting module, specifically a cellular data transmitting module or a radio frequency (RF) transmitting module or a Bluetooth transmitting module or a Wi-Fi transmitting module or a Zigbee transmitting module. Among them, the energy storage module 52, the first control module 54, and the signal transmitting module 55 are arranged in the first control box, and one end of the switch module 56 and the temperature detection module 57 are installed on the first control box, thereby forming an intelligent energy storage wireless transmitting controller, and the intelligent energy storage wireless transmitting controller is provided with a power supply connector for external electrical equipment. Preferably, the intelligent energy storage wireless transmitting controller is placed near water-using equipment such as faucets and showers, such as in a storage cabinet of a basin or in an equipment space of a wall.

[0056] like Figure 5 As shown, the circulating pump 4 is connected with a pump control device 6, which includes a second control box, a second control module 61 for controlling the operation of the circulating pump 4, a signal receiving module 62 connected to the second control module 61, and a power supply 63. The second control box is provided with the second control module 61 and the signal receiving module 62, and the power supply 63 is connected via a power connection line, thereby forming an intelligent wireless receiving controller. The signal receiving module 62 is a wireless signal receiving module, specifically a cellular data receiving module or a radio frequency (RF) receiving module or a Bluetooth receiving module or a Wi-Fi receiving module or a Zigbee receiving module. When the signal receiving module 62 receives the signal sent by the signal transmitting module 55, it is fed back to the second control module 61, thereby controlling the operation of the circulating pump 4.

[0057] The power supply 63 of this embodiment is the mains electricity and supplies power to the pump control device 6 and the circulation pump 4. Preferably, the water heater 1, the pump control device 6 and the circulation pump 4 are arranged on the equipment balcony outside the bathroom or the kitchen, thereby reducing the strong power layout lines in the bathroom or the kitchen, and also reducing the noise impact of the circulation pump 4.

[0058] In another embodiment, the energy storage module 52 is also provided with a power display unit. When the energy storage module 52 displays low power, the user or maintenance personnel can manually start the circulation pump 4 and the circulation electric control valve 53 to realize water circulation in the circulation branch, thereby charging the energy storage battery of the energy storage module 52.

[0059] In addition, after not being used for a period of time, the water temperature will slowly drop because the water in the first branch 21 and the first pipe 2 is not flowing. At this time, when the user turns on the water-using equipment, he needs to drain some of the cold water before hot water can come out. This is an unfriendly experience for high-end villas or hotels.

[0060] For this reason, the present embodiment sets a circulation branch preheating mode. The first control module 54 is connected with a switch module 56 and a temperature detection module 57 arranged near the hot water interface 211. The switch module 56 includes one or more of an infrared sensor, a radar, a laser sensor, and a human body sensor, and is arranged at a location where the user appears, such as near the door, for detecting whether the user is in the room. When the user is detected in the room, the switch module 56 sends an instruction to the first control module 54, and the first control module 54 reads the water temperature of the temperature detection module 5 in real time. The temperature detection module 5 is preferably a temperature probe. After the water temperature detected by the temperature detection module 57 is lower than the water temperature setting value, the first control module 54 sends a signal to drive the circulation pump 4 to work and a signal to control the circulation electric control valve 53 to open through the signal transmission module 55, so that the circulation branch performs internal hot water circulation, so that the water temperature of the first branch 21 and the corresponding first pipeline 2 reaches a predetermined temperature, so that when the user turns on the faucet, shower and other water-using equipment, hot water can be obtained at the first time, which increases the user's experience. At this time, the energy storage module also enters the charging mode.

[0061] The switch module 56 may also be a mechanical switch.

[0062] Embodiment 2:

[0063] Based on the first embodiment, this embodiment adds a reflux pipeline 7 and an electric three-way valve 8.

[0064] like Figure 6 As shown, a return pipeline 7 and an electric three-way valve 8 are arranged between the starting positions of the first pipeline 2 and the second pipeline 3. The electric three-way valve 8 has a first connecting end connected to the return pipeline 7 and two second connecting ends connected to the second pipeline 3. The return pipeline 7 is connected to the first connecting end of the electric three-way valve 8 and the starting position of the first pipeline 2 near the liquid outlet 12 of the water heater.

[0065] The electric three-way valve 8 is controlled by the second control module 61. Generally, the two second connection ends of the electric three-way valve 8 are in a normally open state, and can realize cold water inlet or hot water preheating cycle.

[0066] When the energy storage module 52 enters the automatic charging mode, as in the solution of the first embodiment, the water heater 1, the first pipeline 2, the circulation branch, and the second pipeline 3 form a water flow loop. Since the water outlet device is not working, the inclusion of the water heater 1 in the water flow loop will increase the waste of hot water. In order to achieve energy saving, when the energy storage module 52 enters the automatic charging mode, the second control module 61 of this embodiment will control the electric three-way valve 8 to work at the same time when controlling the circulation pump 4 to turn on, so that the second connection end of the electric three-way valve 8 away from the starting end of the second pipeline 3 and the first connection end are connected, which is equivalent to cutting off the channel entering the water heater 1, so that the first pipeline 2 and the second pipeline 3 are directly connected, so that the water in the first pipeline 2 and the second pipeline 3 can be circulated without consumption, thereby reducing the waste of hot water resources of the water heater and saving electricity costs.

[0067] Embodiment three:

[0068] like Figure 6 As shown, in this embodiment, based on the second embodiment, a sterilizer 9 for connecting to the second control module 61 is provided on the return line 7. The sterilizer 9 is preferably an ultraviolet sterilizer for sterilizing the water flow inside the system.

[0069] That is, when the energy storage module 52 enters the automatic charging mode, the second control module 61 will control the ultraviolet sterilizer to work at the same time when controlling the circulation pump 4 to turn on, so as to achieve internal disinfection and ensure water safety.

[0070] In another embodiment, the sterilizer 9 may also be arranged at the starting position of the first pipeline 2 or the second pipeline 3 .

[0071] Embodiment 4:

[0072] On the basis of the first, second and third embodiments, a constant temperature water outlet device is provided on the circulation branch.

[0073] like Figure 6 , 7 As shown, the constant temperature water outlet device includes a cold water outlet pipe 32, a cold water control valve 33 for controlling the amount of cold water, a hot water outlet pipe 22 and a hot water control valve 23 for controlling the amount of hot water.

[0074] A hot water outlet pipe 22 is installed on the hot water interface 211 of the first branch 21, and a hot water control valve 23 is installed on the hot water outlet pipe 22; a cold water outlet pipe 32 is installed on the cold water interface 311 of the second branch 31, and a cold water control valve 33 is provided on the cold water outlet pipe 32. The cold water outlet pipe 32 and the hot water outlet pipe 22 converge to form a constant temperature water installation port 25, and the driving units of the cold water control valve 33 and the hot water control valve 23 are servo motors, and are electrically connected to the energy storage module 52.

[0075] The constant temperature water outlet device of this embodiment also includes a constant temperature control module for controlling the cold water control valve 33 and the hot water control valve 23. A temperature detection module 57 is provided at the constant temperature water installation port 25. The constant temperature control module quickly adjusts the size of the cold water control valve 33 and the hot water control valve 23 through the outlet water temperature sensed by the temperature detection module 57, that is, adjusts the cold water volume of the cold water outlet pipe 32 and the hot water volume of the hot water outlet pipe 22, thereby accurately controlling the temperature of the constant temperature water installation port 25 to achieve constant temperature water outlet.

[0076] The constant temperature control module of this embodiment may be a separate control module, or may be directly integrated into the first control module 54 .

[0077] Embodiment five:

[0078] This embodiment is basically the same as the solutions of embodiments one to four, except that the second pipeline 3 is a hot water reflux pipe, the starting section of which is arranged between the liquid inlet check valve 14 and the water heater liquid inlet hole 11 of the water heater 1, and is mainly used for hot water reflux of the first pipeline 2.

[0079] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water flow charging hot water directional circulation system, characterized in that: include: A water heater (1) having a water heater liquid inlet (11) and a water heater liquid outlet (12); A first pipeline (2) connected to the liquid outlet (12) of the water heater; A second pipeline (3) connected to the liquid inlet (11) of the water heater; A circulation pump (4) is arranged on the first pipeline (2) or the second pipeline (3); At least one circulation branch, respectively connected to the first pipeline (2) and the second pipeline (3); as well as A circulation electric control valve (53), installed on the circulation branch, for controlling the opening and closing of the circulation branch; Wherein, a water flow power generation device (5) is arranged on the circulation branch, which comprises: A water flow power generation module (51) comprising a driving wheel (511) and a generator (512) installed on the circulation branch; An energy storage module (52) for storing the electric energy generated by the generator (512) and supplying power; When the energy storage module (52) is at low power, the circulation electric control valve (53) and the circulation pump (4) are opened, and the water flow formed by the circulation branch can drive the driving wheel (511) to rotate and enable the generator (512) to generate electricity, thereby charging the energy storage module (52).

2. A water flow charging hot water directional circulation system according to claim 1, characterized in that: The water flow power generation device (5) further comprises a first control module (54), which is electrically connected to the energy storage module (52) and is capable of directly or indirectly controlling the operation of the circulating electric control valve (53) and the circulating pump (4); The energy storage module (52) comprises an energy storage battery and a power detection unit. When the power detection unit detects that the power level of the energy storage battery is lower than a predetermined power level, the first control module (54) can directly or indirectly control the circulation pump (4) to start working, and after the circulation branch is filled with liquid, the water flow power generation module (51) can generate electricity and charge the energy storage battery.

3. A water flow charging hot water directional circulation system according to claim 2, characterized in that: The power generation device (5) further comprises a signal transmission module (55) for connecting to the first control module (54); The circulation pump (4) is connected to a pump control device (6), which comprises: A second control module (61) is used to control the operation of the circulation pump (4); and A signal receiving module (62) is used to receive the control signal of the signal transmitting module (55) and feed it back to the second control module (61).

4. A water flow charging hot water directional circulation system according to claim 3, characterized in that: The energy storage module (52) has a connection port for supplying power to an external electrical device (58), and the connection port is used to connect one or more of a smart faucet, a smart shower, a smart toilet, and a lighting lamp.

5. A water flow charging hot water directional circulation system according to any one of claims 1 to 4, characterized in that: The circulation branch comprises a first branch (21) connected to the first pipeline (2) and a second branch (31) connected to the second pipeline (3). The water flow power generation module (51) is arranged on the first branch (21), and the ends of the first branch (21) are respectively provided with a hot water interface (211) and a circulation electric control valve (53); When liquid flows out of the hot water interface (211), the water flow formed by the first branch (21) can drive the driving wheel (511) to rotate and enable the generator (512) to generate electricity, thereby charging the energy storage module (52).

6. A water flow charging hot water directional circulation system according to claim 5, characterized in that: The first control module (54) is connected to a switch module (56) and a temperature detection module (57) arranged near the hot water interface (211). After the switch module (56) is turned on and the water temperature detected by the temperature detection module (57) is lower than the water temperature setting value, the first control module (54) controls the circulation electric control valve (53) to open and controls the circulation pump (4) to operate, thereby realizing hot water circulation in the circulation branch.

7. A water flow charging hot water directional circulation system according to claim 6, characterized in that: The switch module (56) includes one or more of an infrared sensor, a radar, a laser sensor, and a human body sensor.

8. The water flow charging hot water directional circulation system according to claim 5, characterized in that: The second branch (31) is provided with a cold water interface (311). A cold water outlet pipe (32) and a cold water control valve (33) for controlling the amount of cold water are installed on the cold water interface (311); The hot water interface (211) is provided with a hot water outlet pipe (22) and a hot water control valve (23) for controlling the amount of hot water. The cold water outlet pipe (32) and the hot water outlet pipe (22) converge to form a constant temperature water installation port (25), and the cold water control valve (33) and the hot water control valve (23) are electrically connected to the energy storage module (52).

9. A water flow charging hot water directional circulation system according to claim 3 or 4, characterized in that: A return pipeline (7) and an electric three-way valve (8) are provided between the starting positions of the first pipeline (2) and the second pipeline (3); the electric three-way valve (8) has a first connection end connected to the return pipeline (7) and two second connection ends connected to the second pipelines (3).

10. A water flow charging hot water directional circulation system according to claim 9, characterized in that: The return line (7) is provided with a sterilizer (9) for connecting to the second control module (61).

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