Dual-circulation multifunctional intelligent direct drinking water butler

Abstract

The present invention relates to the field of direct drinking water technology, specifically a dual-circuit multifunctional intelligent direct drinking water steward. It includes an intelligent water meter, which is connected to an inlet pipe and a return pipe. The intelligent water meter contains an inlet meter core and a return meter core. The inlet meter core is installed on the inlet pipe, and the inlet meter core is used to record the inlet flow rate. The return meter core is installed on the return pipe, and the return meter core is used to record the return flow rate. One end of the inlet pipe and the return pipe are interconnected at the user's end faucet, and the other end of the inlet pipe and the return pipe are respectively connected to the water supply and return pipe network of the direct drinking water system. The first controllable valve and the second controllable valve are arranged inside the intelligent water meter. The intelligent water meter also includes a control module, an intelligent remote transmission module and a valve management module. Through the present invention, intelligent management of direct drinking water can be achieved, saving manpower, material resources and maintenance costs, ensuring fresh water quality, and solving the problems of inaccurate measurement and waste of water resources.

Description

Technical Field

[0001] The invention relates to the technical field of direct drinking water, in particular to a dual-circulation multifunctional intelligent direct drinking water steward. Background Art

[0002] Some residential buildings have cold water meters, hot water meters and direct drinking water meters, which require a lot of manpower and material resources to install. When reading the meters, each water meter needs to be read, which increases the workload of the staff and has high maintenance costs.

[0003] Most of the existing technologies use ordinary water meters plus direct drinking water equipment, which can only realize main pipe circulation but cannot realize user branch pipe circulation. For users who are far away from the pipeline well, there is a lot of dead water in the pipeline, and it is difficult for users to drink fresh running water in real time; if the water circulation is continued and the user does not move in or is away for a long time, it will cause unnecessary circulation waste; the metering water meters used in the existing technology cannot realize drip metering, and pipeline dripping or deliberate water theft will cause losses to the water supply company. Summary of the invention

[0004] In order to solve the problems in the related art, the present invention provides a dual-circulation multifunctional intelligent direct drinking water butler. Through the present invention, intelligent management of direct drinking water can be achieved, saving manpower, material resources and maintenance costs, ensuring the freshness of water quality, and solving the problems of inaccurate metering and waste of water resources.

[0005] In order to solve the above problems, the following technical solutions are provided:

[0006] The dual-circulation multifunctional intelligent direct drinking water steward of the present invention comprises an intelligent water meter, the intelligent water meter is connected with an inlet pipe and a return pipe, the intelligent water meter contains an inlet meter core and a return meter core, the inlet meter core is installed on the inlet pipe, the inlet meter core is used to record the inlet flow rate, the return meter core is installed on the return pipe, the return meter core is used to record the return flow rate; one end of the inlet pipe and the return pipe are connected to each other at the user's end faucet, and the other end of the inlet pipe and the return pipe are respectively connected to the water supply and return pipe network of the direct drinking water system; the first controllable valve and the second controllable valve are arranged inside the intelligent water meter, the first controllable valve is located on the inlet pipe, and the second controllable valve is located on the return pipe;

[0007] The smart water meter includes a control module, which is adapted to be connected with the water inlet meter core and the water return meter core, and is used to receive the water inlet flow recorded by the water inlet meter core and the water return flow recorded by the water return meter core, and calculate the difference between the water inlet flow and the water return flow to obtain the actual water consumption;

[0008] An intelligent remote transmission module, which is connected to the control module. The control module is used to transmit the inlet flow, return flow and actual water consumption to the intelligent remote transmission module for storage, and the intelligent remote transmission module sends the stored data to the host computer;

[0009] A valve management module, wherein the valve management module is adapted and connected to both the first controllable valve and the second controllable valve, and the valve management module is connected to the control module and the intelligent remote transmission module. The host computer sets the interval time of water return through the intelligent remote transmission module and the control module. The control module controls the valve management module to open or close the first controllable valve and the second controllable valve according to the set interval time of water return. The valve management module is also used to detect whether the first controllable valve and the second controllable valve are switched in place;

[0010] The water quality detection module is connected to the intelligent remote transmission module. The water quality detection module is used to detect the direct drinking water supplied by the direct drinking water system, obtain water quality information, and send the water quality information to the host computer through the intelligent remote transmission module.

[0011] In the above scheme, through the setting of inlet pipes and return pipes, the smart water meter contains inlet meter cores and return meter cores for detecting the flow of the inlet pipe and the return pipe. Only one smart water meter needs to be installed to detect the inlet pipe and the return pipe, which is beneficial to saving installation space and manpower and material resources, and only one smart water meter needs to be recorded. The meter reading time is saved, and the cost of repairing and maintaining the smart water meter can also be saved. Through the setting of the valve management module, the duration of the return water can be adjusted according to the length of the specific user's pipeline, which is beneficial to avoid waste caused by unnecessary circulation. The interval time of the return water can be set according to the needs of the user, and the circulation function can be flexibly opened or closed, thereby solving the problem of water circulation and waste of water resources.

[0012] The host computer is an intelligent device containing an intelligent management platform, such as a computer, mobile phone or tablet. The intelligent management platform is used to store the actual water consumption and return water flow of all users, and can perform real-time, fixed-point monitoring and management. The intelligent management platform can send the stored information to the corresponding users.

[0013] A rechargeable lithium battery and a disposable battery are arranged in the smart water meter. A socket for an external 5V DC power supply is arranged on the outer side of the smart water meter. The smart water meter includes a battery management module, and the battery management module is used to switch between an external 5V DC power supply, a rechargeable lithium battery and a disposable battery. When there is an external 5V DC power supply, the external 5V DC power supply is used first. When there is no external 5V DC power supply, the battery management module automatically switches to the rechargeable lithium battery for power supply. When there is no external 5V DC power supply and the voltage of the rechargeable lithium battery is low, the battery management module automatically switches to the disposable battery for power supply.

[0014] Through the above solution, the smart water meter is preferentially powered by an external 5V DC power supply, and is equipped with a large-capacity battery inside, such as a rechargeable lithium battery and a disposable battery. The external 5V DC power supply can also charge the rechargeable lithium battery. Under normal meter reading frequency, the battery life of fifteen years or more can be guaranteed, the power consumption is low, and the energy consumption cost can be significantly reduced.

[0015] The battery management module is connected to the control module and the intelligent remote transmission module. When there is no external 5V DC power supply, the rechargeable lithium battery voltage is low or the disposable battery voltage is low, the battery management module pushes a signal to the control module, and the control module then sends an alarm message through the intelligent remote transmission module.

[0016] The smart water meter contains a temperature detection module, which is connected to the control module and the smart remote transmission module. The temperature detection module is used to detect the ambient temperature. The temperature detection module sends the ambient temperature to the control module. When the ambient temperature is lower than the set value of the control module, an antifreeze information reminder is sent through the smart remote transmission module.

[0017] In the above scheme, through the setting of the temperature detection module, when the ambient temperature is lower than the set value, an antifreeze message is sent to remind the user to take precautions in advance to avoid freezing of the water inlet pipe, return pipe or smart water meter due to low temperature.

[0018] The smart water meter includes a water leakage prevention module, which is connected to a control module, a smart remote transmission module, and a valve management module. When the faucet drips for a long time, the water leakage prevention module pushes a signal to the control module, and the control module then sends a warning message to the user through the smart remote transmission module to prevent the faucet from dripping and causing losses to the user and to prevent the user from intentionally stealing water. When water leaks from the water inlet pipe and the water return pipe connecting the smart water meter and the faucet, the water leakage prevention module pushes a signal to the control module, and the control module sends a signal to close the first controllable valve and the second controllable valve to the valve management module, and the control module sends an alarm message through the smart remote transmission module.

[0019] The smart water meter includes a real-time monitoring module, which is connected to the control module, the smart remote transmission module, and the valve management module, and is used to monitor the user's actual water consumption and return water flow in real time, so as to understand the user's water consumption; it can also promptly detect abnormal water consumption of the user.

[0020] In the above scheme, through the setting of the real-time monitoring module, the user's water consumption can be directly controlled remotely, and the meter can be read and the payment can be made remotely. The user recharges first and then uses water. When the fee is in arrears, the first controllable valve is automatically closed to cut off the water, thus solving the problem of difficulty in charging.

[0021] A pressure transmitter is provided in the smart water meter, and a display screen and a digital dial are provided on the upper end surface of the smart water meter. The display screen is used to display the pipe diameter, common flow rate, range ratio and maximum working pressure, and the digital dial is used to display the inlet flow rate, return flow rate, actual water consumption, the first controllable valve status, the second controllable valve status, the return water countdown and the fault status.

[0022] In the above scheme, the display screen and the digital dial are set to intuitively display various parameters of the smart water meter.

[0023] The water inlet pipe is provided with a first ball valve, a filter and a first check valve in sequence, and the water return pipe is provided with a second ball valve and a second check valve in sequence.

[0024] In the above scheme, the first check valve and the second check valve are provided to prevent water from flowing back, thereby affecting the measurement of the water inlet meter core and the water return meter core.

[0025] The above solution has the following advantages:

[0026] The dual-circulation multifunctional intelligent direct drinking water steward of the present invention comprises an intelligent water meter, which contains an inlet meter core and a return water meter core. The inlet meter core is installed on the inlet pipe, and the return water meter core is installed on the return water pipe to record the inlet flow rate and the return water flow rate respectively; the intelligent water meter comprises a control module, which is adaptively connected to the inlet meter core and the return water meter core to receive the inlet flow rate and the return water flow rate recorded by the inlet meter core and the return water meter core, and calculate the difference between the inlet flow rate and the return water flow rate to obtain the actual water consumption; the intelligent remote transmission module is used to store the inlet flow rate, the return water flow rate and the actual water consumption data, and send the stored data to the upper computer; the valve management module is used to detect whether the first controllable valve and the second controllable valve are switched in place, and when the valve management module is connected When no signal is received from the control module, the first controllable valve is automatically closed; through the setting of the inlet pipe and the return pipe, the smart water meter contains an inlet meter core and a return meter core for detecting the inlet pipe flow and the return pipe flow. Only one smart water meter needs to be installed to detect the inlet pipe and the return pipe, which is beneficial to saving installation space and manpower and material resources, and only one smart water meter data needs to be recorded, which saves meter reading time and the cost of repairing and maintaining the smart water meter; through the setting of the valve management module, the duration of the return water can be adjusted according to the length of the specific user's pipeline, which is beneficial to avoid waste caused by unnecessary circulation. The interval time of the return water can be set according to the needs of the user, and the circulation function can be flexibly opened or closed to save water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein:

[0028] Figure 1 This is a schematic diagram of the internal structure of the smart water meter in the dual-circulation multifunctional smart direct drinking water pipe;

[0029] Figure 2 This is a schematic diagram of the connection between the smart water meter, the water inlet pipe and the water return pipe in the present invention;

[0030] Figure 3 This is the module connection diagram of the dual-circulation multifunctional intelligent direct drinking water butler;

[0031] Explanation of the accompanying drawings: 1. Water inlet pipe; 2. Return pipe; 3. Smart water meter; 4. First ball valve; 5. Second ball valve; 6. Filter; 7. First check valve; 8. Second check valve; 9. Water inlet meter core; 10. First controllable valve; 11. Second controllable valve; 12. Pressure transmitter; 13. Return water meter core. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In Example 1, Figures 1 to 3 As shown, the dual-circulation multifunctional intelligent direct drinking water steward of the present invention includes an intelligent water meter 3, which is connected to an inlet pipe 1 and a return pipe 2. The intelligent water meter 3 contains an inlet meter core 9 and a return meter core 13. The inlet meter core 9 is installed on the inlet pipe 1, and the inlet meter core 9 is used to record the inlet flow rate. The return meter core 13 is installed on the return pipe 2, and the return meter core 13 is used to record the return flow rate; one end of the inlet pipe 1 and the return pipe 2 are interconnected at the user's end faucet, and the other ends of the inlet pipe 1 and the return pipe 2 are respectively connected to the water supply and return pipe networks of the direct drinking water system, so that the direct drinking water flows from the inlet pipe 1 through the inlet meter core 9. When the user uses direct drinking water, turn on the faucet and the direct drinking water can flow out. If the user does not use direct drinking water, the direct drinking water refluxes through the return meter core 13 of the return pipe 2 and flows back to the direct drinking water storage, thereby realizing dual-circulation and ensuring that the user can drink fresh water at any time.

[0034] The water inlet pipe 1 is provided with a first ball valve 4 , a filter 6 and a first check valve 7 in sequence, and the water return pipe 2 is provided with a second ball valve 5 and a second check valve 8 in sequence.

[0035] The smart water meter 3 includes a control module, which is adapted to be connected with the water inlet meter core 9 and the water return meter core 13. The control module is used to receive the water inlet flow recorded by the water inlet meter core 9 and the water return flow recorded by the water return meter core 13, and calculate the difference between the water inlet flow and the water return flow to obtain the actual water consumption;

[0036] Intelligent remote transmission module, the intelligent remote transmission module is connected to the control module, the control module is used to transmit the inlet flow, return water flow and actual water consumption to the intelligent remote transmission module for storage, the intelligent remote transmission module sends the stored data to the host computer, the communication method of the intelligent remote transmission module adopts NB-IOT Internet of Things communication, the control module is adapted and connected with the intelligent remote transmission module, valve management module, battery management module, temperature detection module, water quality detection module, real-time monitoring module, anti-dismantling module and anti-leakage module to receive signals, and the control module sends the received signals through the intelligent remote transmission module.

[0037] A first controllable valve 10 and a second controllable valve 11 are arranged inside the smart water meter 3. The first controllable valve 10 is located on the water inlet pipe 1, and the second controllable valve 11 is located on the water return pipe 2. The smart water meter 3 also includes a valve management module. The valve management module is adaptably connected to the first controllable valve 10 and the second controllable valve 11. The valve management module is connected to the control module and the smart remote transmission module. The host computer sets the return water interval through the smart remote transmission module and the control module. The control module controls the valve management module to open or close the first controllable valve 10 and the second controllable valve 11 according to the set return water interval. The valve management module is also used to detect whether the first controllable valve 10 and the second controllable valve 11 are in place. When power failure, arrears and strong magnetic interference occur, the valve management module cannot receive the signal of the control module, and the first controllable valve 10 is automatically closed. Through the valve management module, the opening and closing of the first controllable valve 10 and the second controllable valve 11 are remotely controlled.

[0038] The host computer in this embodiment is an intelligent device containing a smart management platform, such as a computer, mobile phone or tablet. The smart management platform is used to store the actual water consumption and return water flow of all users, and can perform real-time, fixed-point monitoring and management. The smart management platform can send the stored information to the corresponding users. The process of sending information to users through the host computer belongs to the existing technology and will not be repeated here.

[0039] The smart water meter 3 is provided with a rechargeable lithium battery and a disposable battery. The outer side of the smart water meter 3 is provided with a jack for an external 5V DC power supply. The smart water meter 3 includes a battery management module, which is used to switch between an external 5V DC power supply, a rechargeable lithium battery and a disposable battery. When there is an external 5V DC power supply, the external 5V DC power supply is used. When there is no external 5V DC power supply, the battery management module automatically switches to the rechargeable lithium battery. When there is no external 5V DC power supply and the rechargeable lithium battery voltage is low, the battery management module automatically switches to the disposable battery. The battery management module is connected to the control module and the intelligent remote transmission module. When there is no external 5V DC power supply, the rechargeable lithium battery voltage is low or the disposable battery voltage is low, the battery management module pushes a signal to the control module, and the control module sends an alarm message through the intelligent remote transmission module. The smart water meter 3 uses an external 5V DC power supply first, and is equipped with a large-capacity battery, such as a rechargeable lithium battery and a disposable battery. The external 5V DC power supply can also charge the rechargeable lithium battery. Under normal meter reading frequency, the battery life of fifteen years or more can be guaranteed, the power consumption is low, and the energy consumption cost can be significantly reduced.

[0040] The smart water meter 3 includes a water quality detection module, which is installed on the direct drinking water equipment or the main water supply network of the system. The water quality detection module is connected to the intelligent remote transmission module. The water quality detection module is used to detect the direct drinking water supplied by the direct drinking water system to obtain water quality information, and send the water quality information to the host computer through the intelligent remote transmission module, and send the water quality information to the user through the smart management platform.

[0041] The smart water meter 3 includes an infrared module, which performs infrared communication with the test bench to complete the configuration and reading of relevant parameters during the test of the smart water meter 3. The infrared module is connected to the hand-copied device to modify the meter reading settings.

[0042] The smart water meter 3 contains a temperature detection module, which is connected to the control module and the smart remote transmission module. The temperature detection module is used to detect the ambient temperature. The temperature detection module sends the ambient temperature to the control module. When the ambient temperature is lower than the set value of the control module, the antifreeze information reminder is sent to the smart management platform through the smart remote transmission module. Through the setting of the temperature detection module, when the ambient temperature is lower than the set value, the smart management platform sends antifreeze information to remind the user, which is helpful to prevent the temperature from being too low and freezing the water inlet pipe 1, the return pipe 2 or the smart water meter 3.

[0043] The smart water meter 3 includes an anti-disassembly module. When the user disassembles the smart water meter 3 by himself, the smart remote transmission module sends an alarm message to the host computer, and the smart water meter 3 is automatically scrapped.

[0044] The smart water meter 3 includes a water leakage prevention module, which is connected to the control module, the smart remote transmission module, and the valve management module. When the faucet drips for a long time, the water leakage prevention module pushes a signal to the control module, and the control module then sends a warning message to the smart management platform through the smart remote transmission module to prevent the faucet from dripping and causing user losses and prevent users from intentionally stealing water; when the section of the water inlet pipe 1 and the return pipe 2 connected to the smart water meter 3 and the faucet leaks, the water leakage prevention module pushes a signal to the control module, and the control module sends a signal to close the first controllable valve 10 and the second controllable valve 11 to the valve management module, and the control module sends an alarm message through the smart remote transmission module. Through the setting of the water leakage prevention module, it can prevent water leakage from causing user losses and prevent users from intentionally stealing water. When the water inlet pipe 1 and the return pipe 2 leak, the water leakage prevention module can identify and judge, and close the first controllable valve 10 and the second controllable valve 11 in time to avoid losses, so that the smart water meter 3 is more intelligent and the measurement is more accurate during use.

[0045] The smart water meter 3 includes a real-time monitoring module, which is connected to the control module, the smart remote transmission module, and the valve management module, and is used to monitor the user's actual water consumption and return water flow in real time, so as to understand the user's water use situation; by analyzing the data of actual water consumption and return water flow, abnormal water use of the user can be discovered in time. Through the setting of the real-time monitoring module, the user's water use situation can be directly remotely controlled, and the meter can be read and paid remotely. The user recharges first and then uses water. When the fee is in arrears, the first controllable valve 10 is automatically closed to cut off the water, which solves the problem of difficulty in charging.

[0046] A pressure transmitter 12 is provided in the smart water meter 3. A display screen and a digital dial are provided on the upper end surface of the smart water meter 3. The display screen is used to display the pipe diameter, common flow rate, range ratio and maximum working pressure. The digital dial is used to display the inlet flow rate, return flow rate, actual water consumption, the state of the first controllable valve 10, the state of the second controllable valve 11, the return water countdown and the fault state. The various parameters of the smart water meter 3 can be viewed intuitively.

[0047] In this embodiment, the water inlet meter core 9 and the water return meter core 13 can be a volumetric meter core, a velocity meter core or any meter core in the prior art.

[0048] In this embodiment, the controllable valve is one of an electrically driven valve, a pneumatically driven valve or a hydraulically driven valve; wherein the electrically driven valve may be a solenoid valve or an electric valve.

[0049] During normal operation, the water inlet pipe 1 and the water return pipe 2 form a dual-circuit circulation, and the water inlet meter core 9 and the water return meter core 13 respectively record the water inlet flow and the water return flow. The difference between the water inlet flow and the water return flow is calculated by the control module to obtain the actual water consumption of the user, and to ensure that the direct drinking water used by the user is running water; according to the user's pipeline length and needs, the interval time of direct drinking water return is set, and the valve management module controls the opening and closing of the first controllable valve 10 and the second controllable valve 11. When the pipeline length is 4 meters, the return water duration is set to 30 seconds, and the return water interval is 8 hours. The valve management module can control the opening and closing of the first controllable valve 10 and the second controllable valve 11 according to the set return water interval; when the temperature is lower than 4°C, the temperature detection module detects in real time and sends it to the control module, and sends antifreeze information reminders in time.

[0050] The real-time monitoring module detects the user's water consumption each time. When the water consumption exceeds 20L at a time, the valve management module controls the first controllable valve 10 to close and pushes information. After three minutes, the first controllable valve 10 automatically opens and returns to normal. If the single water consumption exceeds 20L for three consecutive times, the first controllable valve 10 is completely closed and the administrator needs to be contacted to open it. When the balance is lower than the warning setting value, the collection information is pushed to the smart management platform, and the smart management platform sends the collection information to the user. When the balance is 0, the first controllable valve 10 is closed, and the arrears information is pushed to the smart management platform, and the smart management platform sends the collection information to the user. The specific process is that when the balance is 15 yuan, the control module controls the intelligent remote transmission module to push the first collection information, when the balance is 9 yuan, the control module controls the intelligent remote transmission module to push the second collection information, and when the balance is 0 yuan, the control module controls the valve management module to close the first controllable valve and push the arrears information through the intelligent remote transmission module.

[0051] In this embodiment, the daily water threshold is set to 60L. When the real-time monitoring module detects that the daily water threshold exceeds the set value, it pushes information to the administrator; when the real-time monitoring module detects that the water meter power is disconnected, it pushes information to the administrator; there is a strong magnetic detection module in the smart water meter 3. The strong magnetic detection module detects a strong magnetic field and automatically closes the first controllable valve 10 and the second controllable valve 11. The strong magnetic detection module contains a Hall element. If the Hall element senses a magnetic field higher than 37GS, it is determined to be a strong magnetic interference, and the first controllable valve 10 and the second controllable valve 11 are automatically closed; if the magnetic field is sensed to be lower than 25GS, it is determined to be a safe magnetic field, and the first controllable valve 10 and the second controllable valve 11 are automatically opened; the real-time monitoring module can detect whether the water supply is normal in real time. After the water supply is stopped, the information is immediately reported and pushed to the administrator to prompt the water supply to stop.

[0052] In the specific embodiment 2, the difference between this embodiment and embodiment 1 is that, in this embodiment, when the remaining water volume is lower than the warning setting value, the collection reminder information is pushed to the smart management platform, and the smart management platform sends the collection reminder information to the user. When the remaining water volume is 0, the first controllable valve 10 is closed, and the arrears information is pushed to the smart management platform, and the smart management platform sends the collection reminder information to the user. The specific process is that when the remaining water volume is 50L, the control module controls the intelligent remote transmission module to push the first collection reminder information. When the remaining water volume is 30L, the control module controls the intelligent remote transmission module to push the second collection reminder information. When the remaining water volume is 0, the control module controls the valve management module to close the first controllable valve and push the arrears information through the intelligent remote transmission module.

[0053] Obviously, the above embodiments are merely examples for clear explanation and are not limitations on the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the protection scope of the invention.

Claims

1. Dual-circuit multifunctional intelligent direct drinking water butler, characterized by: The smart water meter comprises a water inlet pipe and a water return pipe connected to the smart water meter, and the smart water meter contains a water inlet meter core and a water return meter core, the water inlet meter core is installed on the water inlet pipe, and the water inlet meter core is used to record the water inlet flow, and the water return meter core is installed on the water return pipe, and the water return meter core is used to record the water return flow; One end of the water inlet pipe and the water return pipe are connected to each other at the user's end faucet, and the other ends of the water inlet pipe and the water return pipe are respectively connected to the water supply and water return pipe network of the direct drinking water system; a first controllable valve and a second controllable valve are arranged inside the smart water meter, the first controllable valve is located on the water inlet pipe, and the second controllable valve is located on the water return pipe; The smart water meter includes a control module, which is adapted to be connected with the water inlet meter core and the water return meter core, and is used to receive the water inlet flow recorded by the water inlet meter core and the water return flow recorded by the water return meter core, and calculate the difference between the water inlet flow and the water return flow to obtain the actual water consumption; An intelligent remote transmission module, which is connected to the control module. The control module is used to transmit the inlet flow, return flow and actual water consumption to the intelligent remote transmission module for storage, and the intelligent remote transmission module sends the stored data to the host computer; A valve management module, wherein the valve management module is adaptably connected to the first controllable valve and the second controllable valve, and the valve management module is connected to the control module and the intelligent remote transmission module. The host computer sets the return water interval through the intelligent remote transmission module and the control module. The control module controls the valve management module to open or close the first controllable valve and the second controllable valve according to the set return water interval. The valve management module is also used to detect whether the first controllable valve and the second controllable valve are switched in place.

2. The dual-circulation multifunctional intelligent direct drinking water steward according to claim 1 is characterized in that: The host computer is an intelligent device containing a smart management platform, such as a computer, mobile phone or tablet. The smart management platform is used to store the actual water consumption and return water flow of all users, and can perform real-time, fixed-point monitoring and management; the smart management platform can send the stored information to the corresponding users.

3. The dual-circulation multifunctional intelligent direct drinking water steward according to claim 1 is characterized in that: A rechargeable lithium battery and a disposable battery are arranged in the smart water meter. A socket for an external 5V DC power supply is arranged on the outer side of the smart water meter. The smart water meter includes a battery management module, and the battery management module is used to switch between an external 5V DC power supply, a rechargeable lithium battery and a disposable battery. When there is an external 5V DC power supply, the external 5V DC power supply is used first. When there is no external 5V DC power supply, the battery management module automatically switches to the rechargeable lithium battery for power supply. When there is no external 5V DC power supply and the voltage of the rechargeable lithium battery is low, the battery management module automatically switches to the disposable battery for power supply.

4. The dual-circulation multifunctional intelligent direct drinking water steward as claimed in claim 3 is characterized in that: The battery management module is connected to the control module and the intelligent remote transmission module. When there is no external 5V DC power supply, the rechargeable lithium battery voltage is low or the disposable battery voltage is low, the battery management module pushes a signal to the control module, and the control module then sends an alarm message through the intelligent remote transmission module.

5. The dual-circulation multifunctional intelligent direct drinking water steward according to claim 1, characterized in that: The smart water meter includes a water quality detection module, which is connected to the smart remote transmission module. The water quality detection module is used to detect the direct drinking water supplied by the direct drinking water system to obtain water quality information, and send the water quality information to the host computer through the smart remote transmission module.

6. The dual-circulation multifunctional intelligent direct drinking water steward according to claim 1, characterized in that: The smart water meter contains a temperature detection module, which is connected to the control module and the smart remote transmission module. The temperature detection module is used to detect the ambient temperature. The temperature detection module sends the ambient temperature to the control module. When the ambient temperature is lower than the set value of the control module, an antifreeze information reminder is sent through the smart remote transmission module.

7. The dual-circulation multifunctional intelligent direct drinking water steward according to claim 1, characterized in that: The smart water meter includes a water leakage prevention module, which is connected to a control module, a smart remote transmission module, and a valve management module. When the faucet leaks for a long time, the water leakage prevention module pushes a signal to the control module, and the control module then sends a warning message to the user through the smart remote transmission module to prevent the faucet from dripping and causing losses to the user and to prevent the user from intentionally stealing water. When water leaks from the water inlet pipe and the water return pipe connecting the smart water meter and the faucet, the water leakage prevention module pushes a signal to the control module, and the control module sends a signal to close the first controllable valve and the second controllable valve to the valve management module, and the control module sends an alarm message through the smart remote transmission module.

8. The dual-circulation multifunctional intelligent direct drinking water steward according to claim 1, characterized in that: The smart water meter includes a real-time monitoring module, which is connected to the control module, the smart remote transmission module, and the valve management module, and is used to monitor the user's actual water consumption and return water flow in real time, so as to understand the user's water consumption situation.

9. The dual-circulation multifunctional intelligent direct drinking water steward according to claim 1, characterized in that: A pressure transmitter is provided in the smart water meter, and a display screen and a digital dial are provided on the upper end surface of the smart water meter. The display screen is used to display the pipe diameter, common flow rate, range ratio and maximum working pressure, and the digital dial is used to display the inlet flow rate, return flow rate, actual water consumption, the first controllable valve status, the second controllable valve status, the return water countdown and the fault status.

10. The dual-circulation multifunctional intelligent direct drinking water steward according to claim 1, characterized in that: The water inlet pipe is provided with a first ball valve, a filter and a first check valve in sequence, and the water return pipe is provided with a second ball valve and a second check valve in sequence.

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