Water flow charging type pipe-in-pipe hot water directional circulating system

Abstract

The utility model belongs to the technical field of domestic water, and particularly relates to a water flow charging type pipe-in-pipe hot water directional circulating system which comprises a water heater, a pipe-in-pipe pipeline and a circulating pump. Wherein at least one pipe-in-pipe branch of the pipe-in-pipe pipeline is provided with a water flow power generation device, and the water flow power generation device comprises a water flow power generation module which is provided with a driving wheel and a power generator which are installed on the pipe-in-pipe branch; the energy storage module is used for storing the electric energy generated by the generator and supplying power; and the circulating electric control valve is mounted on the pipe-in-pipe branch and used for controlling the liquid inlet channel and the backflow channel of the pipe-in-pipe branch to be opened or closed. According to the utility model, weak current can be directly provided for internal electric equipment and external electric equipment through the energy storage module, and automatic charging is realized, so that water and electricity separation is realized, tedious procedures of strong current wiring in a whole room are 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 utility model belongs to the field of domestic water technology, especially to a water flow charging type pipe-in-pipe hot water directional circulation system. BACKGROUND

[0002] The phenomenon of toilet leakage occurs in daily life, and this problem cannot be underestimated. When the leakage is relatively light, various types of electrical equipment will be damaged, affecting normal use; and once the situation is serious, the current will directly threaten the life safety of the user, causing irreparable tragedies. Therefore, great importance should be attached to the electrical safety problem of the toilet, and effective measures should be taken to prevent it.

[0003] At present, with the emergence of intelligent faucets, intelligent showers and intelligent toilets, the electrical scene in the bathroom is becoming more and more, and sockets need to be added near the basin, shower room and toilet to meet the needs of users, which further increases the area of circuit wiring and the risk of leakage. SUMMARY

[0004] The utility model aims at providing a water flow charging type pipe-in-pipe hot water directional circulation system with simple structure, which can realize automatic energy storage and water-electricity separation.

[0005] The utility model is realized in this way:

[0006] A water flow charging type pipe-in-pipe hot water directional circulation system, comprising: a water heater having a water heater outlet hole and a water heater return flow hole; a pipe-in-pipe pipeline having a liquid inlet channel communicating with the water heater outlet hole and a return flow channel communicating with the water heater return flow hole, a circulating pump arranged at the liquid inlet end of the liquid inlet channel or the return flow end of the return flow channel; wherein at least one pipe-in-pipe branch of the pipe-in-pipe pipeline is provided with a water flow power generation device, which comprises: a water flow power generation module having a driving wheel and a generator mounted on the pipe-in-pipe branch; an energy storage module for storing the electric energy generated by the generator and supplying power; a circulating electric control valve installed on the pipe-in-pipe branch for controlling the opening or closing of the liquid inlet channel and the return flow channel of the pipe-in-pipe branch; when the energy storage module is in low power, the circulating electric control valve and the circulating pump are opened, the water flow formed by the pipe-in-pipe branch can drive the driving wheel to rotate and make the generator generate electricity, and the energy storage module is charged.

[0007] The utility model further sets up, water current power generation device still includes first control module, its electricity is stored energy module, can directly or indirectly control circulating electric control valve and circulating pump work;The stored energy module includes energy storage battery and electric quantity detection unit, when electric quantity detection unit detects that the electric quantity of energy storage battery is lower than electric quantity predetermined value, first control module can directly or indirectly control circulating pump work and circulating electric control valve opens, and water current flows from the liquid inlet channel of pipe in pipe branch to backflow channel, realizes that water current power generation module generates electricity, and charges energy storage battery.

[0008] The utility model further sets up, power generation device still includes signal emission module for connecting first control module;Circulating pump is connected with pump control device, it includes: second control module for controlling circulating pump work;And signal receiving module for receiving control signal of signal emission module and feedback to second control module.

[0009] The utility model further sets up, stored energy module has the wiring port for the power supply of external electric equipment, and the wiring port is used for connecting one or several of intelligent water faucet, intelligent shower, intelligent closestool, lighting lamp.

[0010] The utility model further sets up, pipe in pipe branch is provided with pipe in pipe installation joint, and pipe in pipe installation joint has at least pipe in pipe connecting end for connecting pipe in pipe pipeline and circulating valve connecting end for installing circulating electric control valve, driving wheel is installed in pipe in pipe connecting end that communicates liquid inlet channel, and generator is installed outside pipe in pipe installation joint.

[0011] The utility model further sets up, pipe in pipe installation joint still has pipe in pipe liquid outlet end that can communicate liquid inlet channel and backflow channel, and pipe in pipe liquid outlet end is used for installing temperature control delay valve core or / and hot water control valve.

[0012] The utility model further sets up, first control module is connected with switch module and temperature detection module that sets up in pipe in pipe liquid outlet end, after the water temperature that temperature detection module detects is lower than water temperature setting value after switch module opens, first control module controls circulating pump work and circulating electric control valve opens, realizes the internal circulation of pipe in pipe branch.

[0013] The utility model further sets up, pipe in pipe branch is installed with constant temperature water liquid outlet device, and it includes: hot water liquid outlet pipe, connects pipe in pipe liquid outlet end;Electric hot water control valve, is installed on hot water liquid outlet pipe and is used for controlling hot water amount;Cold water liquid outlet pipe, is used for connecting cold water inlet end of cold water pipeline;And electric cold water control valve, is installed on cold water liquid outlet pipe and is used for controlling cold water amount;Wherein, the liquid outlet end of cold water liquid outlet pipe and hot water liquid outlet pipe converges and forms constant temperature water installation mouth, and electric cold water control valve and electric hot water control valve electricity is stored energy module.

[0014] The utility model further sets up, the starting section of pipe in pipe pipeline is provided with starting valve, starting valve has pipe in pipe installation end of connecting pipe in pipe pipeline, first liquid inlet installation end for intercommunication, second liquid inlet installation end for intercommunication backflow channel and backflow installation end, second liquid inlet installation end is provided with first check valve that can enter liquid, backflow installation end is provided with second check valve that can backflow, water heater liquid outlet hole is connected with hot water liquid inlet pipeline, hot water liquid inlet pipeline intercommunication second liquid inlet installation end, pass through circulating pump and connect first liquid inlet installation end simultaneously, water heater backflow hole is connected with backflow installation end through liquid outlet pipeline.

[0015] The utility model further sets up, hot water liquid inlet pipeline and liquid outlet pipeline are provided with backflow pipeline and be used for connecting second control module electric three way valve between, electric three way valve has a first connecting end of connecting backflow pipeline and two second connecting ends of connecting liquid outlet pipeline.

[0016] The utility model discloses compared with prior art has the advantages of:

[0017] 1, the water current power generation device of the utility model generates through directional water current, and stores up through energy storage module for internal electrical equipment and external electrical equipment (intelligent water faucet, intelligent shower, intelligent closestool) use, and the energy storage module provides is weak current, directly to the power supply of nearby weak current electrical appliances, like this does not need to arrange 220V strong electric socket near the table basin, shower room, closestool etc., thereby realizes water and electricity separation, reduces the cumbersome procedure of whole room strong electric wiring, saves the decoration cost. In addition, even if the energy storage module or corresponding connected external electrical equipment leaks, weak current is relatively low to the harm of human body, and life is not endangered, guarantees the electrical safety of bathroom.

[0018] 2, the energy storage module of the utility model is provided with energy storage battery and electric quantity detection unit, when electric quantity detection unit detects that the electric quantity of energy storage battery is lower than electric quantity predetermined value, first control module directly or indirectly control circulating pump starts work, simultaneously control circulating electric control valve opens, make this pipe in pipe branch realize internal water flow circulation, thereby let water current power generation module generate electricity, realize the automatic charging of energy storage battery.

[0019] 3, the utility model discloses that backflow pipeline and electric three way valve are provided between hot water liquid inlet pipeline and liquid outlet pipeline, when energy storage module enters automatic charging mode, the second control module of the embodiment will control electric three way valve work when controlling circulating pump opens, make electric three way valve close water heater backflow hole of water heater, and make second connecting end and first connecting end conduction, equivalent to the conduction of liquid outlet pipeline and hot water liquid inlet pipeline, and the water of pipe in pipe pipeline carries out non-consumption circulation, thereby reduce the hot water resource waste of water heater, save electricity fee.

[0020] 4. The utility model discloses a sterilizer for connecting the second control module is arranged on the return pipeline, when the energy storage module enters the automatic charging mode, the second control module controls the sterilizer to work simultaneously when controlling the circulating pump to open, realizes internal disinfection, guarantees water safety.

[0021] 5. The utility model discloses an energy storage module can also power supply for constant temperature water outflow device, satisfy the demand of different scenes. DRAWINGS

[0022] Figure 1 It is the structure schematic drawing of the first water flow charging type pipe-in-pipe hot water directional circulation system of the utility model.

[0023] Figure 2 It is the structure schematic drawing of the starting valve and circulating pump of the utility model.

[0024] Figure 3 It is the structure schematic drawing of the first water flow power generation device of the utility model.

[0025] Figure 4 It is the structure schematic drawing of the second water flow power generation device of the utility model.

[0026] Figure 5 It is the circuit principle diagram of the water flow power generation device of the utility model.

[0027] Figure 6 It is the circuit principle diagram of the pump control device of the utility model.

[0028] Figure 7 It is the structure schematic drawing of the second water flow charging type pipe-in-pipe hot water directional circulation system of the utility model.

[0029] Figure 8 It is the structure schematic drawing of the third water flow charging type pipe-in-pipe hot water directional circulation system of the utility model.

[0030] Figure 9 It is the structure schematic drawing of the third water flow power generation device of the utility model.

[0031] Figure 10 It is the structure schematic drawing of the constant temperature water outflow device of the utility model.

[0032] The meaning that the reference numeral indicates in the drawing:

[0033] Water heater 1, pipe-in-pipe pipeline 2, starting valve 3, circulating pump 4, water flow power generation device 5, pump control device 6, return pipeline 7, electric three-way valve 8, sterilizer 9,

[0034] Water heater inlet hole 11, water heater outlet hole 12, tap water connecting pipeline 13, inlet check valve 14, water heater return hole 15, hot water inlet pipeline 16, outlet pipeline 17,

[0035] Inlet channel 21; return channel 22; pipe-in-pipe mounting joint 23; pipe-in-pipe connection end 231; circulation valve connection end 232; pipe-in-pipe outlet end 233; temperature control delay valve core 24; hot water control valve 25;

[0036] Pipe-in-pipe mounting end 31; first inlet mounting end 32; second inlet mounting end 33; return mounting end 34; first check valve 35; second check valve 36;

[0037] Constant temperature water outlet device 40; hot water outlet pipe 41; electric hot water control valve 42; cold water outlet pipe 43; electric cold water control valve 44; constant temperature water mounting port 45;

[0038] Water flow power generation module 51; drive wheel 511; generator 512; energy storage module 52; circulating electric control valve 53; first control module 54; signal transmission module 55; switch module 56; temperature detection module 57; external electrical equipment 58;

[0039] Second control module 61; signal receiving module 62; power supply 63;

[0040] Cold water pipe 100. DETAILED DESCRIPTION

[0041] The utility model will be further described in connection with specific embodiments:

[0042] Example one:

[0043] As Figure 1 shown, a water flow charging type pipe-in-pipe hot water directional circulation system mainly includes a water heater 1, a pipe-in-pipe pipeline 2, a starting valve 3, a circulating pump 4, a water flow power generation device 5 and a pump control device 6, and is mainly applied to the field of intelligent toilets of residences, villas and hotels, and can also be used in kitchens and other rooms requiring hot water, and is mainly used for providing hot water.

[0044] The water heater 1 has a water heater inlet hole 11, a water heater outlet hole 12 and a water heater return hole 15, the water heater inlet hole 11 is connected with a tap water connection pipeline, a liquid inlet check valve 14 is arranged on the tap water connection pipeline 13, the liquid inlet check valve 14 can prevent tap water from flowing back, and ensure that the water heater 1 can smoothly fill with water. The water heater outlet hole 12 is connected with a hot water inlet pipeline 16, and the hot water inlet pipeline 16 is a single-channel ordinary hot water pipeline. The water heater return hole 15 is provided with an outlet pipeline 17, and the outlet pipeline 17 is a single-channel ordinary hot water pipeline and is used for hot water return. In other embodiments, the water heater inlet hole 11 and the water heater return hole 15 can be shared, that is, the outlet pipeline 17 can be mounted on the tap water connection pipeline 13 between the water heater inlet hole 11 and the liquid inlet check valve 14 through a three-way joint.

[0045] The circulation pump 4 is arranged on the hot water inlet pipeline 16 or the outlet pipeline 17, i.e. the circulation pump 4 is arranged at the inlet end of the inlet channel 21 or the return channel 22. In this embodiment, the circulation pump 4 is arranged on the hot water inlet pipeline 16 and is connected to the inlet end of the inlet channel 21 and the water heater inlet hole 11 of the water heater 1.

[0046] The pipe-in-pipe pipeline 2 mainly comprises a pipe-in-pipe and a pipe-in-pipe joint. The pipe-in-pipe comprises an inner pipe and an outer pipe arranged coaxially and connected by a connecting portion. The inner pipe forms an inner flow channel, and the outer pipe forms an outer flow channel. In this embodiment, the inner flow channel is the inlet channel 21 connected to the water heater outlet hole 12, and the outer flow channel is the return channel 22 connected to the water heater return hole 15. Generally, the pipe-in-pipe pipeline 2 is divided into a main pipeline and a plurality of pipe-in-pipe branches arranged on the main pipeline. The main pipeline and the main pipeline both have an inner flow channel and an outer flow channel. The pipe-in-pipe branches are arranged in each room or water use position.

[0047] As shown in Figure 2 In order to facilitate the connection of the pipe-in-pipe pipeline, the circulation pump 4, the hot water inlet pipeline 16 and the outlet pipeline 17, a starting valve 3 is arranged at the starting section of the pipe-in-pipe pipeline 2 in this embodiment. The starting valve 3 has a pipe-in-pipe mounting end 31 connected to the pipe-in-pipe pipeline 2, a first inlet mounting end 32 connected to the inlet channel 21, a second inlet mounting end 33 connected to the return channel 22 and a return mounting end 34. In this embodiment, the pipe-in-pipe mounting end 31 is connected to the main pipeline of the pipe-in-pipe pipeline 2 through a pipe-in-pipe joint. The first inlet mounting end 32 is connected to the inner flow channel, and the second inlet mounting end 33 and the return mounting end 34 are both connected to the outer flow channel.

[0048] The second liquid inlet installation end 33 is provided with a first check valve 35 capable of liquid inlet, the backflow installation end 34 is provided with a second check valve 36 capable of backflow, the water heater liquid outlet hole 12 is connected with a hot water liquid inlet pipeline 16, the hot water liquid inlet pipeline 16 communicates with the second liquid inlet installation end 33, and simultaneously connects the circulating pump 4 and the first liquid inlet installation end 32 of the starting valve 3 in sequence through a three-way valve; the water heater backflow hole 15 communicates with the backflow installation end 34 through a liquid outlet pipeline 17. In the pipe-in-pipe pipeline 2, the end of the pipe-in-pipe branch is capable of communicating the inner flow channel and the outer flow channel, when the circulating pump 4 is not started, the hot water of the water heater 1 can enter from the first liquid inlet installation end 32 and the second liquid inlet installation end 33 (the first check valve 35 is opened) respectively through the hot water liquid inlet pipeline 16, realizing that the inner flow channel and the outer flow channel simultaneously output hot water, satisfying the normal water demand of the pipe-in-pipe branch, at this time, the backflow installation end 34 generally does not output liquid, and the pressure generally does not open the second check valve 36. When the circulating pump 4 is started, the water pressure of the inner flow channel will be greater than that of the outer flow channel, causing the first check valve 35 of the second liquid inlet installation end 33 to be always in a closed state, and the second check valve 36 of the backflow installation end 34 can be opened, thereby realizing the circulation of hot water on the water heater, the hot water liquid inlet pipeline 16, the inner flow channel, the outer flow channel, and the liquid outlet pipeline 17, replacing hot water for the pipe-in-pipe pipeline 2, so that the user can use hot water in the first time, and improving the user experience.

[0049] Generally, the liquid outlet end of the embodiment provides hot water, therefore, a cold water pipeline 100 communicating with a tap water pipe needs to be used to satisfy the cold and hot water demand. Specifically, the embodiment is provided with a hot water control valve 25 on the main pipeline or the pipe-in-pipe branch, the hot water control valve 25 is generally a hot water angle valve, the cold water pipeline 100 is provided with a cold water angle valve, the hot water angle valve is generally connected with a hot water inlet end of a faucet or a shower, and the cold water angle valve is generally connected with a cold water inlet end of the faucet or the shower, and the cold water angle valve and the hot water angle valve form a cold and hot water pipe installation structure at a conventional basin or shower installation position.

[0050] As shown in Figure 3 , 5 , at least one pipe-in-pipe branch of the pipe-in-pipe pipeline 2 is provided with a water flow power generation device 5 capable of generating power and storing power, which comprises a water flow power generation module 51, an energy storage module 52, a first control module 54, a signal emission module 55, a switch module 56 and a temperature detection module 57.

[0051] The pipe-in-pipe branch is provided with a pipe-in-pipe mounting joint 23, the pipe-in-pipe mounting joint 23 at least has a pipe-in-pipe connecting end 231 connected with the pipe-in-pipe pipeline 2, a circulating valve connecting end 232 mounting the circulating electric control valve 53, and a pipe-in-pipe liquid outlet end 233 capable of respectively communicating the liquid inlet channel 21 and the return flow channel 22, the pipe-in-pipe liquid outlet end 233 is used for mounting a temperature control delay valve core 24 or / and a hot water control valve 25, the hot water control valve 25 is a hot water angle valve or an electric control valve. In the embodiment, the temperature control delay valve core 24 is used for internal flow channel priority liquid outlet, which includes a temperature control device and a temperature control valve core, the temperature control valve core seals the outer flow channel, when the temperature control device senses hot water in the internal flow channel, the temperature control device drives the temperature control valve core to open the outer flow channel, realizing the internal and external flow channels to flow together, and the specific structure is shown in CN202022293558.7, which will not be described here.

[0052] The circulating valve connecting end 232 is provided with a circulating electric control valve 53 used for controlling the opening and closing of the internal and external flow channels of the pipe-in-pipe branch. The circulating electric control valve 53 is a normally closed electric control valve, under normal circumstances, the circulating electric control valve 53 seals the internal flow channel outlet of the circulating valve connecting end 232, separates the internal and external flow channels of the pipe-in-pipe branch, so that the pipe-in-pipe branch is in a non-circulating state. The circulating electric control valve 53 is electrically connected with 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. That is, when the circulating electric control valve 53 is opened, the internal and external flow channels of the pipe-in-pipe branch are communicated with each other, the pipe-in-pipe branch is in a circulating state, at this time, a water flow circuit can be formed by the water heater 1, the hot water inlet pipeline 16, the circulating pump 4, the internal flow channel, the external flow channel and the liquid outlet pipeline 17 in turn, and the water flow can realize internal circulation.

[0053] The water flow power generation module 51 has a driving wheel 511 and a generator 512 mounted on the pipe-in-pipe branch. Specifically, the driving wheel 511 is rotationally arranged in the liquid inlet channel 21 of the pipe-in-pipe connecting end 231, the generator 512 is mounted outside the pipe-in-pipe mounting joint 23, the main shaft of the generator 512 extends into the inside of the liquid inlet channel 21 and is fixedly connected with the driving wheel 511. When the pipe-in-pipe liquid outlet end 233 discharges liquid or the liquid circulates in the circulating valve connecting end 232 (i.e. the circulating electric control valve 53 is opened and circulates), the water flow in the liquid inlet channel 21 of the pipe-in-pipe mounting joint 23 can drive the driving wheel 511 to rotate, and the generator 512 generates electricity.

[0054] As Figure 3As shown, the drive wheel 511 is a bladed impeller, including an impeller body and circumferentially distributed blades. The liquid inlet channel 21 of the pipe-in-pipe connection end 231 is provided with an impeller mounting cavity. A part of the impeller mounting cavity overlaps with the liquid inlet channel 21. The drive wheel 511 is located inside the impeller mounting cavity, and one side of its blades is located inside the liquid inlet channel 21 of the pipe-in-pipe connection end 231. The generator 512 is fixed on the outside of the pipe-in-pipe connection end 231. When there is water flow in the liquid inlet channel 21 of the pipe-in-pipe connection end 231, the blades of the drive wheel 511 rotate under the action of the water flow, thereby realizing the generation of electricity by the generator.

[0055] like Figure 4 As shown, in another embodiment, the drive wheel 511 is a helical impeller, which is directly installed in the liquid inlet channel 21 of the pipe-in-pipe connection end 231. At this time, the generator 512 is installed between the liquid outlet end 233 of the pipe-in-pipe and the circulation valve connection end 232. The main shaft of the generator 512 extends into the inner cavity of the pipe-in-pipe mounting joint 23 and is fixedly connected to the helical impeller. When there is water flow in the liquid inlet channel 21 of the pipe-in-pipe connection end 231, the helical blades of the drive wheel 511 rotate under the action of the water flow, thereby realizing the generation of electricity by the generator.

[0056] The energy storage module 52 is used to store the electrical 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 transmission 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. The wiring port can be connected to the external electrical equipment 58, which includes low-voltage electrical appliances such as lighting, smart faucets, smart showers, and smart toilets.

[0057] The water flow power generation device 5 in 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 devices. The energy storage module 52 provides low-voltage electricity, directly powering nearby low-voltage appliances. This eliminates the need for 220V high-voltage sockets near sinks, shower rooms, toilets, etc., thus achieving water and electricity separation, reducing the cumbersome wiring process throughout the room, and saving on renovation costs. Furthermore, even if the energy storage module 52 or the corresponding connected external electrical device 58 leaks electricity, the low-voltage electricity poses a relatively low risk to human health and will not endanger life, ensuring electrical safety in the bathroom.

[0058] In the frequently used bathroom or kitchen, each hot water flow drives the driving wheel 511 to rotate and makes the generator 512 generate electricity, realizing 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 power consumption equipment. However, for the pipe-in-pipe branch that has not been used for a long time, the power of the energy storage module 52 on the pipe-in-pipe branch will decay and cannot provide power for the power consumption equipment, which will affect the normal use of the power consumption equipment.

[0059] Therefore, the energy storage module 52 needs to have an automatic charging mode. The energy storage module 52 includes an energy storage battery and a power detection unit, which can detect the power of the energy storage battery in real time or at regular intervals and feed 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 power predetermined value, the first control module 54 directly or indirectly controls the circulating pump 4 to start working, and at the same time controls the circulating electric control valve 53 to open, so that the pipe-in-pipe branch realizes the water flow circulation of the inner and outer flow channels, thereby making the water flow power generation module 51 generate electricity, realizing the 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 circulating pump 4 to be closed, and at the same time controls the circulating electric control valve 53 to be closed, the water flow stops, and the charging of the energy storage module 52 ends.

[0060] Generally, since the water flow power generation device 5 is arranged near the water consumption 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 the embodiment is indirectly connected with the circulating pump 4. Specifically, the water flow power generation device 5 further includes a signal transmitting module 55 connected with 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 is mounted 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 power consumption equipment. Preferably, the intelligent energy storage wireless transmitting controller is placed near the water consumption equipment such as faucet, shower and the like, for example, in the storage cabinet of the table basin or in the equipment space of the wall.

[0061] As Figure 6As shown, the circulating pump 4 is connected with a pump control device 6, which comprises a second control box, a second control module 61 for controlling the operation of the circulating pump 4, a signal receiving module 62 connected with the second control module 61, and a power supply 63. The second control module 61 and the signal receiving module 62 are arranged in the second control box and connected with the power supply 63 through a power supply 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 sending module 55, the signal is fed back to the second control module 61, thereby controlling the operation of the circulating pump 4.

[0062] The power supply 63 of the present embodiment is a mains power supply and supplies power to the pump control device 6 and the circulating pump 4. Preferably, the water heater 1, the pump control device 6 and the circulating pump 4 are arranged on a device balcony outside a bathroom or a kitchen, thereby reducing the strong electric arrangement line in the bathroom or the kitchen and also reducing the noise influence of the circulating pump 4.

[0063] In another embodiment, the energy storage module 52 is further provided with a power display unit. When the energy storage module 52 displays low power, the user or the maintenance personnel can manually start the circulating pump 4 and the circulating electric control valve 53, thereby realizing the water flow circulation of the pipe-in-pipe branch and charging the energy storage battery of the energy storage module 52.

[0064] In addition, after a period of non-use, the water temperature will slowly decrease due to the lack of water flow in the pipe-in-pipe pipeline. At this time, the user needs to empty a part of the cold water before hot water comes out, which is not a friendly experience for high-end villas or hotels.

[0065] To this end, the embodiment sets a pipe-in-pipe 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 position where a user appears, such as near a door, for detecting whether a user is in a room, when detecting that a user is 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, and the temperature detection module 5 is 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 circulating pump 4 to work and a signal to control the circulating electric control valve 53 to open, so that the pipe-in-pipe branch performs internal hot water circulation, so that the water temperature of the inner and outer flow channels reaches a predetermined temperature, so that when the user opens a faucet, a shower or other water equipment, hot water can be obtained at the first time, and the user's experience is increased. At this time, the energy storage module also enters the charging mode.

[0066] The switch module 56 can also be a mechanical switch.

[0067] Embodiment two:

[0068] The embodiment adds a backflow pipeline 7 and an electric three-way valve 8 on the basis of embodiment one.

[0069] As shown in Figure 7 The backflow pipeline 7 and the electric three-way valve 8 are arranged between the hot water inlet pipeline 16 and the outlet pipeline 17, the electric three-way valve 8 has a first connection end connected with the backflow pipeline 7 and two second connection ends connected with the outlet pipeline 17. The electric three-way valve 8 is controlled by a second control module 61. Generally, the two second connection ends of the electric three-way valve 8 are in a normal open state, and can realize hot water backflow to the water heater 1.

[0070] When the energy storage module 52 enters the automatic charging mode, as in the scheme of embodiment one, the water heater 1, the hot water inlet pipeline 16, the circulating pump 4, the inner flow channel, the outer flow channel, and the outlet pipeline 17 form a water flow circuit, and since the water equipment is not working, the water heater 1 is added to the water flow circuit, which will additionally increase the waste of hot water. In order to realize energy saving, when the energy storage module 52 enters the automatic charging mode, the second control module 61 of the embodiment controls the electric three-way valve 8 to work at the same time when controlling the circulating pump 4 to open, so that the electric three-way valve 8 closes the water heater backflow hole 15 of the water heater 1, and makes the second connection end and the first connection end conductive, which is equivalent to making the outlet pipeline 17 and the hot water inlet pipeline 16 conductive, and the water of the pipe-in-pipe pipeline circulates without consumption, thereby reducing the waste of hot water resources of the water heater and saving electricity bills.

[0071] Embodiment three:

[0072] As Figure 7 shown, this embodiment is based on embodiment two, a sterilizer 9 for connecting the second control module 61 is arranged on the return pipeline 7, the sterilizer 9 is preferably an ultraviolet sterilizer, which is used to sterilize the water flow inside the system.

[0073] That is, when the energy storage module 52 enters the automatic charging mode, the second control module 61 controls the ultraviolet sterilizer to work when the circulating pump 4 is opened, so as to realize internal sterilization and ensure water safety.

[0074] In another embodiment, the sterilizer 9 can also be arranged at the starting position of the liquid outlet pipeline 17 or the hot water inlet pipeline 16.

[0075] Embodiment four:

[0076] The same as embodiment one, the difference is:

[0077] As Figure 9 shown, another pipe-in-pipe installation joint 23 is arranged on the pipe-in-pipe branch, the pipe-in-pipe installation joint 23 has a pipe-in-pipe connecting end 231 connected with the pipe-in-pipe pipeline 2 and a circulating valve connecting end 232 for installing the circulating electric control valve 53, the circulating valve connecting end 232 is provided with the circulating electric control valve 53 for controlling the opening and closing of the inner flow channel of the pipe-in-pipe branch. The pipe-in-pipe connecting end 231 is provided with the water flow power generation device 5. The circulating electric control valve 53 is a normally closed electric control valve, under normal circumstances, the circulating electric control valve 53 closes the inner flow channel outlet of the circulating valve connecting end 232, that is, the pipe-in-pipe branch is in a non-circulating state. When the circulating electric control valve 53 is opened, the inner flow channel and the outer flow channel of the pipe-in-pipe branch are connected with each other, and the pipe-in-pipe branch is in a circulating state. At this time, a water flow circuit can be formed by passing through the water heater 1, the hot water inlet pipeline 16, the inner flow channel, the outer flow channel, and the liquid outlet pipeline 17 in turn, and the water flow can realize internal circulation and charge the water flow power generation device 5.

[0078] The water flow power generation device 5 of this embodiment mainly supplies power to external electrical equipment 58 such as intelligent toilets which do not require hot water.

[0079] Embodiment five:

[0080] Based on embodiments one, two, three, and four, a constant temperature water outlet device is arranged on at least one pipe-in-pipe branch.

[0081] As Figure 8 , 10 shown, the constant temperature water outlet device 40 includes a cold water outlet pipe 43, an electric cold water control valve 44 for controlling the amount of cold water, a hot water outlet pipe 41, and an electric hot water control valve 42 for controlling the amount of hot water.

[0082] The pipe-in-pipe outlet end 233 of the pipe-in-pipe installation joint 23 is installed with a hot water outlet pipe 41, and the hot water outlet pipe 41 is installed with an electric hot water control valve 42; the cold water interface of the cold water pipeline 100 is installed with a cold water outlet pipe 43, and the cold water outlet pipe 43 is provided with an electric cold water control valve 44. The cold water outlet pipe 43 and the hot water outlet pipe 41 converge and form a constant temperature water installation port 45, the drive units of the electric cold water control valve 44 and the electric hot water control valve 42 are servo motors, and the electric cold water control valve 44 and the electric hot water control valve 42 are electrically connected with the energy storage module 52.

[0083] The constant temperature water outlet device of the embodiment further comprises a constant temperature control module for controlling the electric cold water control valve 44 and the electric hot water control valve 42, and the constant temperature water installation port 45 is provided with a temperature detection module 57; the constant temperature control module quickly adjusts the sizes of the electric cold water control valve 44 and the electric hot water control valve 42 according to the outlet water temperature sensed by the temperature detection module 57, that is, adjusts the cold water amount of the cold water outlet pipe 43 and the hot water amount of the hot water outlet pipe 41, so as to accurately control the temperature of the constant temperature water installation port 45 and realize constant temperature water outlet.

[0084] The constant temperature control module of the embodiment can be a separate control module or can be directly integrated on the first control module 54.

[0085] Embodiment six:

[0086] The embodiment is basically the same as the schemes of the embodiments one to five, and the difference lies in that the inner flow channel is the return flow channel 22 connected with the water heater return flow hole 15, and the outer flow channel is the liquid inlet channel 21 connected with the water heater outlet hole 12.

[0087] The above embodiments are only preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A water flow charged pipe-in-pipe hot water directional circulation system, characterized in that, The application relates to a water heater (1) and a water flow power generation device (5) for the water heater (1). The water heater (1) comprises a water heater outlet (12) and a water heater return (15); a pipe-in-pipe pipeline (2) is arranged in the water heater outlet (12) and the water heater return (15); a circulating pump (4) is arranged at the inlet end of the inlet channel (21) or the return end of the return channel (22); and the water flow power generation device (5) is arranged on at least one pipe-in-pipe branch of the pipe-in-pipe pipeline (2). The water flow power generation device (5) comprises a water flow power generation module (51), a storage module (52) and a circulating electric control valve (53). When the circulating electric control valve (53) and the circulating pump (4) are opened, the water flow formed by the pipe-in-pipe branch can drive the driving wheel (511) to rotate and make the generator (512) generate electricity, and charge the storage module (52). The water flow power generation device (5) further comprises a first control module (54) electrically connected to the storage module (52) and capable of directly or indirectly controlling the working of the circulating pump (4) and the opening of the circulating electric control valve (53). The storage module (52) comprises a storage battery and an electric quantity detection unit. When the electric quantity detection unit detects that the electric quantity of the storage battery is lower than a predetermined value, the first control module (54) can directly or indirectly control the working of the circulating pump (4) and the opening of the circulating electric control valve (53), the water flow flows from the inlet channel (21) to the return channel (22) of the pipe-in-pipe branch, the water flow power generation module (51) generates electricity, and the storage battery is charged. The water flow power generation device (5) further comprises a signal transmission module (55) connected to the first control module (54). The circulating pump (4) is connected with a pump control device (6) which comprises a second control module (61) for controlling the working of the circulating pump (4) and a signal receiving module (62) for receiving the control signal of the signal transmission module (55) and feeding back to the second control module (61).

2. A water flow charged in-pipe-in-pipe hot water directional circulation system according to claim 1, wherein: The storage module (52) has a wiring port for supplying power to an external electric device (58), and the wiring port is used for connecting one or more of an intelligent faucet, an intelligent shower, an intelligent toilet and a lighting lamp. The pipe-in-pipe branch is provided with a pipe-in-pipe mounting connector (23) which has a pipe-in-pipe connecting end (231) connected with the pipe-in-pipe pipeline (2) and a circulating valve connecting end (232) mounting the circulating electric control valve (53), the driving wheel (511) is mounted in the pipe-in-pipe connecting end (231) connected with the inlet channel (21), and the generator (512) is mounted outside the pipe-in-pipe mounting connector (23).

3. A hydronic chargeable in-pipe-in-pipe hot water directional circulation system according to claim 2, wherein: ​ ​ ​ ​ 4. A hydronic charge-fed in-pipe-in-pipe hot water directional circulation system according to claim 3, wherein: ​ 5. A hydromotive chargeable in-pipe-in-tube hot water directional circulation system according to any one of claims 2-4, characterized in that: ​ 6. A hydronic chargeable in-pipe-in-tube hot water directional circulation system according to claim 5, characterized in that: The pipe-in-pipe installation joint (23) further has a pipe-in-pipe liquid outlet end (233) capable of communicating the liquid inlet channel (21) and the return flow channel (22), and the pipe-in-pipe liquid outlet end (233) is used to install a temperature control delayed valve core (24) or / and a hot water control valve (25).

7. The water flow charging type pipe-in-pipe hot water directional circulation system according to claim 6, characterized in that: The first control module (54) is connected with a switch module (56) and a temperature detection module (57) arranged in the pipe-in-pipe liquid outlet end (233), After the switch module (56) is turned on, when 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 pump (4) to work and the circulation electric control valve (53) to open, so as to realize the internal circulation of the pipe-in-pipe branch.

8. A hydronic chargeable in-pipe-in-pipe hot water directional circulation system according to claim 6, wherein: The pipe-in-pipe branch is provided with a constant temperature water outlet device (40), which comprises: a hot water outlet pipe (41) connected with the pipe-in-pipe liquid outlet end (233); an electric hot water control valve (42) installed on the hot water outlet pipe (41) and used to control the amount of hot water; a cold water outlet pipe (43) used to connect a cold water inlet end of a cold water pipeline (100); and an electric cold water control valve (44) installed on the cold water outlet pipe (43) and used to control the amount of cold water; wherein the outlet ends of the cold water outlet pipe (43) and the hot water outlet pipe (41) converge and form a constant temperature water installation port (45), and the electric cold water control valve (44) and the electric hot water control valve (42) are electrically connected with the energy storage module (52).

9. A water flow charged in-pipe-in-pipe hot water directional circulation system according to claim 3 or 4, characterised in that: The starting section of the pipe-in-pipe pipeline (2) is provided with a starting valve (3), and the starting valve (3) has a pipe-in-pipe installation end (31) connected with the pipe-in-pipe pipeline (2), a first liquid inlet installation end (32) used to communicate the liquid inlet channel (21), a second liquid inlet installation end (33) used to communicate the return flow channel (22), and a return flow installation end (34), The second liquid inlet installation end (33) is provided with a first check valve (35) capable of allowing liquid to flow in, and the return flow installation end (34) is provided with a second check valve (36) capable of allowing liquid to flow back, The hot water heater outlet hole (12) is connected with a hot water inlet pipeline (16), the hot water inlet pipeline (16) communicates with the second liquid inlet installation end (33) and is connected with the first liquid inlet installation end (32) through the circulation pump (4); and the hot water heater return flow hole (15) communicates with the return flow installation end (34) through an outlet pipeline (17).

10. A hydronic chargeable in-pipe-in-tube hot water directional circulation system according to claim 9, wherein: The hot water inlet pipeline (16) and the outlet pipeline (17) are provided with a return flow pipeline (7) and an electric three-way valve (8) used to connect the second control module (61), and the electric three-way valve (8) has a first connection end connected with the return flow pipeline (7) and two second connection ends connected with the outlet pipeline (17); The return flow pipeline (7) is provided with a sterilizer (9) used to connect the second control module (61).

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