Double-path circulating intelligent water meter and using method thereof

Abstract

The invention discloses a double-path circulation intelligent water meter and a using method thereof, and relates to the technical field of double-path circulation intelligent watermeters, the double-path circulation intelligent water meter comprises a water meter body, and further comprises a water inlet pipe and a water return pipe which are arranged on the water meter body, and the two ends of the water inlet pipe are provided with a water inlet pipe inlet and a water inlet pipe outlet respectively; a water return pipe inlet and a water return pipe outlet are formed in the two ends of the water return pipe respectively, the water inlet pipe inlet and the water return pipe outlet are located at the same end of the water meter body, the water inlet pipe outlet and the water return pipe inlet are located at the other end of the water meter body, and a first water flow path is formed among the water inlet pipe inlet, the water meter body and the water inlet pipe outlet; a second water flow path is formed among the water return pipe inlet, the water meter body and the water return pipe outlet, the water meter body forms double-path circulation under the cooperation of the first water flow path and the second water flow path, the double-path circulation intelligent water meter avoids existence of dead water in a pipeline, and water use sanitation and safety of a user are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of dual-circulation intelligent water meters, in particular to a dual-circulation intelligent water meter and a use method thereof. Background Art

[0002] A water meter is an instrument that measures water flow, mostly measuring the cumulative flow of water. In order to save water resources and control human waste of water resources, a water meter for measurement is usually installed on the water inlet pipe of each household, so that the water flow through the faucet can be measured by the water meter.

[0003] With the improvement of living standards, direct drinking water is widely used in thousands of households. More and more high-end communities choose to purchase direct drinking water equipment, transport water to households through direct drinking water pipe networks, and centrally supply direct drinking water. Ordinary water meters can only measure flow, and the circulation pipeline can only reach the front end of the water meter. The pipeline from the water meter to the end faucet cannot circulate. Some users have no one at home for a long time, and the water in the direct drinking water pipe has not been used for a long time, which leads to the breeding of bacteria. When users use direct drinking water again, the water quality cannot meet the direct drinking water standard. They can only use water with excessive bacteria, or need to release a large amount of water to flush before they dare to drink water, which causes waste of direct drinking water and brings certain hidden dangers to the health of users. In addition, the existing water meters cannot accurately measure dripping and leakage, and cannot make judgments and prevention of water leakage, resulting in waste of water resources. Summary of the invention

[0004] The purpose of the present invention is to provide a dual-circulation intelligent water meter and a method of using the same to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dual-circulation intelligent water meter, comprising a water meter body, and also comprising a water inlet pipe and a water return pipe respectively arranged on the water meter body, wherein the two ends of the water inlet pipe are respectively provided with a water inlet pipe inlet and a water inlet pipe outlet, and the two ends of the water return pipe are respectively provided with a water return pipe inlet and a water return pipe outlet, the water inlet pipe inlet and the water return pipe outlet are located at the same end of the water meter body, and the water inlet pipe outlet and the water return pipe inlet are located at the other end of the water meter body, a first water flow path is formed between the water inlet pipe inlet, the water meter body and the water inlet pipe outlet, a second water flow path is formed between the water return pipe inlet, the water meter body and the water return pipe outlet, and the water meter body forms a dual-circuit circulation under the cooperation of the first water flow path and the second water flow path, the water inlet pipe and the water return pipe are connected with a tee pipe at the user end, the other end of the tee pipe is connected to a faucet in the user's home, or the water inlet pipe and the water return pipe are directly connected to a circulating faucet with an inlet and return two-way interface;

[0006] Two meter cores are arranged in the water meter body, and the two meter cores are respectively a water inlet meter core arranged in the water inlet pipe and a water return meter core arranged in the water return pipe. The water inlet pipe is provided with a buffer energy storage mechanism for mitigating the instantaneous impact force of the water flow caused by closing the faucet.

[0007] Preferably, the two watch movements are provided with a counter display area, a page switching key and an electronic display screen.

[0008] Preferably, it also includes a pressure transmitter, which is installed on the water inlet pipe or a pipeline connected to the water inlet pipe.

[0009] Preferably, two controllable valves are provided in the water meter body, which are respectively an inlet controllable valve arranged on the water inlet pipe and a return water controllable valve arranged on the return water pipe. When the faucet is not opened, the inlet controllable valve is closed. When the faucet is opened, the pressure in the pipeline drops instantly, the main controller controls the inlet controllable valve to open, and the user uses water normally. The inlet controllable valve and the return water controllable valve are electrically connected to the main controller.

[0010] Preferably, a battery is provided in the water meter body, the battery is detachably connected to the water meter body, and the battery is electrically connected to a main controller, a pressure transmitter, and a water inlet controllable valve and a water return controllable valve.

[0011] Preferably, the water meter body is provided with a code scanning area, and the code scanning area has a barcode representing the water meter information.

[0012] The buffer energy storage mechanism includes a first circular plate fixedly connected to the inner wall of the water inlet pipe, the first circular plate is connected to a second circular plate on a side away from the water meter body through a sliding component, the first circular plate and the second circular plate are respectively provided with a plurality of first through holes and second through holes, and the water inlet pipe is provided with a driving component for driving the second circular plate.

[0013] Preferably, the driving assembly includes a first driving straight groove which is symmetrically arranged on the inner wall of the water inlet pipe, one end of the two first driving straight grooves passes through the water inlet pipe, the other end of the two first driving straight grooves is provided with a spiral groove, the end of the two spiral grooves away from the first driving straight grooves is provided with a second driving straight groove, the two spiral grooves are provided with a driving rod, and the opposite end of the two driving rods is connected to the second circular plate.

[0014] Preferably, the sliding assembly includes two oppositely arranged sliding grooves opened on the inner wall of the water inlet pipe, the two sliding grooves are slidably connected with a sliding plate, the opposite ends of the two sliding plates are connected to a second circular plate through a connecting assembly, and the second circular plate is provided with a connecting assembly for connecting with the two sliding plates.

[0015] Preferably, the two sliding grooves are provided with a telescopic assembly for telescoping the movement of the second circular plate, the telescopic assembly includes a telescopic tube fixedly connected to the inner wall of the sliding groove on the side away from the first circular plate, the telescopic tube is slidably connected to a telescopic rod, one end of the telescopic rod is connected to the second circular plate, the other end of the telescopic rod is located in the telescopic tube and fixedly connected to the telescopic plate, the side wall of the telescopic rod located inside the telescopic tube is provided with a first spring, and the two ends of the first spring are respectively connected to the telescopic plate and the inner wall of the telescopic tube.

[0016] Preferably, the connecting assembly comprises an arc groove formed on the side wall of the second circular plate, the arc groove is rotatably connected with a connecting plate, and one end of the connecting plate is connected to the second circular plate.

[0017] The method for using the dual-circulation smart water meter includes the following steps:

[0018] S1. Connect the inlet of the water inlet pipe to the direct drinking water network water supply pipeline, connect the outlet of the water inlet pipe to the user's household water supply pipe, connect the return pipe inlet to the user's return pipe, and connect the return pipe outlet to the direct drinking water network return pipe;

[0019] S2. The water inlet meter measures and counts the user's water consumption. When the user's continuous water consumption exceeds the set value, it is temporarily determined that the user's home has a water leak, and the water inlet controllable valve is closed for the first time. After the valve is closed for m seconds, the alarm is automatically released, and the user can still use water. When the continuous water consumption exceeds the set value again, the water inlet controllable valve is closed again and an alarm is sounded. This is repeated three times in a row, and it is determined that there is a water leak. The water inlet controllable valve is completely closed, and an alarm message is sent to the user's mobile phone, thereby forming a water leak alarm function, which can prevent the risk of water waste caused by pipe damage or when the user's home faucet is not closed;

[0020] S3. When the user has a pipe leak or intentionally steals water, the liquid pressure in the water inlet pipe will slowly decrease. When the pressure in the pipe is lower than the preset threshold value 1, the main controller controls the water inlet controllable valve to open and add water. When the pressure in the pipe is higher than the preset threshold value 2, a delay of n seconds is performed. If no new water flow is detected within n seconds, the water inlet controllable valve is closed. If water flows, the timing is restarted after the water flow stops for n seconds. After three consecutive times, when the pressure in the pipe is lower than the preset threshold value 1, it is determined that the user's pipe is leaking or intentionally stealing water, an alarm message is sent, and the water inlet controllable valve is closed;

[0021] S4. When the faucet in the user's home is suddenly turned off, the water flow speed in the pipe decreases sharply. According to the momentum theorem, this will cause the momentum of the water flow to change. Since water is incompressible, this change in momentum will generate a pressure wave in the pipe. The pressure wave propagates along the pipe in the direction of the incoming water. When the pressure wave reaches the water inlet pipe, under the action of the buffer energy storage mechanism, the driving action of the driving component is used to slow down the instantaneous impact force of the water flow caused by closing the faucet, thereby reducing the instantaneous impact force of the water flow.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The dual-circulation smart water meter uses the setting of the return pipe to circulate the water in the pipe from the water meter to the faucet, thereby avoiding the formation of stagnant water that breeds bacteria and affects the health of users.

[0024] 2. The dual-circulation intelligent water meter and the use method thereof of the present invention, under the detection action of the meter core and the pressure transmitter, utilizes the control action of the water inlet controllable valve to form a water leakage alarm valve closing function and a drip alarm valve closing function, thereby preventing the risk of water waste caused by pipeline damage or the faucet in the user's home not being closed, and preventing accidental pipeline leakage or intentional water theft by the user. At the same time, by utilizing the setting of the impact reduction component, under the driving action of the driving component, the pressure wave caused by the transient pressure in the pipeline is reduced, thereby mitigating the instantaneous impact force of the water flow caused by closing the faucet, reducing the instantaneous impact force of the water flow, and thus reducing the risk of damage to the internal components of the water meter body due to pressure waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of water inlet and return flow of the present invention;

[0027] Figure 3 It is a schematic diagram of the meter core, pressure transmitter and controllable valve of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the buffer energy storage mechanism of the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6 This is a schematic diagram of the structure of the drive assembly of the present invention;

[0031] Figure 7 This is a schematic diagram of the interior of the sliding plate of the present invention;

[0032] Figure 8 It is a schematic diagram of the connection between the water meter body and the faucet of the present invention.

[0033] In the figure: 101, water meter body; 102, water inlet pipe; 103, water return pipe; 106, tee pipe; 107, faucet; 108, water inlet pipe inlet; 109, water inlet pipe outlet; 110, water return pipe inlet; 111, water return pipe outlet; 201, first circular plate; 202, second circular plate; 203, first through hole; 204, second through hole; 301, first driving straight groove; 302, spiral groove; 303, second driving straight groove; 304, driving rod; 401, sliding groove; 402, sliding plate; 501, telescopic tube; 502, telescopic rod; 503, telescopic plate; 504, first spring; 6, connecting plate; 801, counter display area; 802, page switching key; 803, electronic display screen; 804, return water meter core; 805, inlet water meter core; 9, pressure transmitter; 10, inlet controllable valve; 11, battery; 12, code scanning area; 13, return water controllable valve. DETAILED DESCRIPTION

[0034] 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.

[0035] Example

[0036] See also Figure 1-Figure 8In the figure, the dual-circulation intelligent water meter includes a water meter body 101, and also includes an inlet pipe 102 and a return pipe 103 respectively arranged on the water meter body 101. The two ends of the inlet pipe 102 are respectively provided with an inlet pipe inlet 108 and an inlet pipe outlet 109, and the two ends of the return pipe 103 are respectively provided with a return pipe inlet 110 and a return pipe outlet 111. The inlet pipe inlet 108 and the return pipe outlet 111 are located at the same end of the water meter body 101, and the inlet pipe outlet 109 and the return pipe inlet 110 are located at the other end of the water meter body 101. A first water flow path is formed between the inlet pipe inlet 108, the water meter body 101 and the inlet pipe outlet 109, and the return pipe inlet 110, the water meter body 101 and the return pipe outlet 111 1, and the water meter body 101 forms a double-circuit circulation under the cooperation of the first water flow path and the second water flow path, the water inlet pipe 102 and the return pipe 103 are connected with a three-way pipe 106 at the user end, and the other end of the three-way pipe 106 is connected to the faucet 107 in the user's home, and the water inlet pipe 102 and the return pipe 103 can also be directly connected to the circulating faucet 107 with inlet and return interfaces. Two meter cores are arranged in the water meter body 101, and the two meter cores are respectively an inlet meter core 805 arranged in the water inlet pipe 102 and a return meter core 804 arranged in the return pipe 103. The water inlet pipe 102 is provided with a buffer energy storage mechanism for mitigating the instantaneous impact force of the water flow caused by closing the faucet 107;

[0037] It should be noted here that: the user's water consumption is measured and counted through the water inlet meter core 805. When the user's continuous water consumption exceeds the set value, it is temporarily determined that the user's home has a water leak, and the water inlet controllable valve 10 is closed for the first time. After the valve is closed for m seconds, the alarm is automatically released, and the user can still use water. When the continuous water consumption exceeds the set value again, the water inlet controllable valve 10 is closed again and an alarm is sounded. This is repeated three times in a row, and it is determined that there is a water leak. The water inlet controllable valve 10 is completely closed, and an alarm message is sent to the user's mobile phone, thereby forming a water leak alarm function, which can prevent the risk of water waste caused by pipe damage or when the faucet 107 in the user's home is not closed;

[0038] Specifically, for example, a normal large bucket of water has a capacity of 18L, and a protection value can be set to 20L. When the continuous water consumption exceeds 20L, it is temporarily determined that the user's home is leaking water, and the water inlet controllable valve 10 is closed for the first time. After the valve is closed for m seconds, the alarm is automatically released, and the user can still use water. When the continuous water consumption exceeds 20L again, the water inlet controllable valve 10 is closed again and an alarm is sounded. This is repeated three times in a row, and it is determined that there is a water leak. The water inlet controllable valve 10 is completely closed, and an alarm message is sent to the user's mobile phone. After confirming that the water is manually released or has returned to normal, the closure is released, thereby forming a water leak alarm function, which can prevent the risk of water waste caused by pipe damage or when the faucet 107 in the user's home is not closed;

[0039] It is worth noting that: direct drinking water first enters the water inlet pipe 102 from the water inlet pipe inlet 108, then flows into the water meter body 101, and then flows to the tee pipe 106 from the water inlet pipe outlet 109 of the water inlet pipe 102, while the return water enters the return pipe 103 from the return pipe inlet 110, then flows into the water meter body 101, and then flows out from the return pipe outlet 111 of the return pipe 103.

[0040] See also Figure 3 , the two watch movements shown in the figure are provided with a counter display area 801, a page switching key 802 and an electronic display screen 803;

[0041] It should be noted here that: the counter display area 801 is set to display the user's water consumption, the page switch key 802 is used to switch the function page of the electronic display screen 803, and the electronic display screen 803 is used to display the data and information of the water meter.

[0042] See also Figure 3 In the water meter body 101 shown in the figure, two controllable valves are arranged in the water meter body 101, which are respectively an inlet controllable valve 10 arranged on the water inlet pipe 102 and a return controllable valve 13 arranged on the return pipe 103. When the faucet 107 is not opened, the inlet controllable valve 10 is closed. When the faucet 107 is opened, the pressure in the pipeline drops instantly, and the main controller controls the inlet controllable valve 10 to open, and the user uses water normally. The inlet controllable valve 10 and the return controllable valve 13 are electrically connected to the main controller. The pressure transmitter 9 can also be arranged on an external pipeline connected to the water inlet pipe 102. The pressure transmitter 9 installed outside the water inlet pipe can be placed between the inlet controllable valve 10 and the faucet 107. During normal water use, the return water controllable valve 13 is in a closed state. When the user does not use water for a long time, exceeding the set time, the main controller controls the return water controllable valve 13 and the inlet water controllable valve 10 to open, so that the inlet pipe 102, the return water pipe 103 and the three-way pipe 106 form a passage. Under the action of the water supply pressure of the direct drinking water network, the water in the inlet pipe 102 and the return water pipe 103 flows into the return water pipeline of the direct drinking water network, thereby realizing water return. The return water meter core 804 and the inlet water meter core 805 count at the same time, and the main controller can know the return water volume, thereby deducting the return water volume to avoid overcharging the user.

[0043] It should be noted here that the normal water use process of a user is that the user turns on the faucet, the pressure in the water inlet pipe slowly decreases, the main controller controls the water inlet controllable valve 10 to open, water flows out normally, and the water inlet meter core 805 charges normally. When the user uses water normally and there is a pipeline leakage or intentional water theft, the pressure in the water inlet pipe decreases. When the pressure in the water inlet pipe drops below the preset threshold value 1 (in this embodiment, the preset threshold value 1 is 0.053MPa), the pressure transmitter 9 transmits a signal to the main controller, opens the water inlet controllable valve 10, and replenishes water. After the pressure rises to above the preset threshold value 2 (in this embodiment, the preset threshold value 2 is 0.1MPa), a delay of 5s is performed. If no new water flow is detected within 5s (i.e., the water inlet meter core 805 has no flow accumulation), the water inlet controllable valve 10 is closed. If water flows (the meter core has flow accumulation, which is normal water use by the user), the water flow is re-detected 5s after the water flow stops. After three consecutive detections, the meter core still has no flow accumulation, but the pressure in the water inlet pipe is lower than the preset threshold value 1, it can be determined as a pipeline leakage or intentional water theft by the user. At this time, an alarm message can be sent and the water inlet controllable valve 10 can be closed, thereby forming a leakage alarm valve closing function, which can prevent accidental pipeline leakage or intentional water theft by the user.

[0044] It is worth noting that: when the user is using water, direct drinking water enters from the water inlet pipe 102, the faucet 107 is turned on, the pressure in the pipe is instantly reduced, the main controller controls the water inlet controllable valve 10 to open, and the user can use water normally. When the user does not use water for a long time, exceeding the set time, a water return operation is required. When the water return operation is performed, the water return controllable valve 13 and the water inlet controllable valve 10 are both opened, and the direct drinking water enters the water inlet pipe 102 from the water inlet pipe inlet 108, and then flows into the water meter body 101, flows through the water inlet controllable valve 10. The water flows from the water inlet meter core 805, then flows from the water inlet pipe outlet 109 of the water inlet pipe 102 to the tee pipe 106, then enters the return pipe 103 from the return pipe inlet 110, and then flows into the water meter body 101, flows through the return water meter core 804, the return water controllable valve 13, and then flows out from the return pipe outlet 111 of the return pipe 103, flows to the return pipe of the direct drinking water network, and flows back to the water storage tank. When the actual water consumption of the user is measured, the value of the water inlet meter core 805 minus the value of the return water meter core 804 is the actual water consumption of the user.

[0045] In this embodiment, the pressure transmitter 9 is used to be installed on the water inlet pipe 102 or an auxiliary pipeline of the water inlet pipe 102. In this embodiment, the auxiliary pipeline of the water inlet pipe 102 is a water pipe.

[0046] See also Figure 3 , the water meter body 101 shown in the figure is provided with a battery 11, the battery 11 is detachably connected to the water meter body 101, and the battery 11 is electrically connected to the main controller, the pressure transmitter 9, the water inlet controllable valve 10 and the water return controllable valve 13;

[0047] It should be noted here that the battery 11 is provided to provide power supply for the operation of the main controller, the pressure transmitter 9 , the water inlet controllable valve 10 and the water return controllable valve 13 .

[0048] See also Figure 1 , the water meter body 101 shown in the figure is provided with a code scanning area 12, and the code scanning area 12 has a barcode representing the water meter information;

[0049] It should be noted here that: by setting the code scanning area 12, it is convenient for users and maintenance personnel to determine the number and related information of the water meter by scanning the code.

[0050] See also Figure 4-Figure 7 The buffer energy storage mechanism shown in the figure includes a first circular plate 201 fixedly connected to the inner wall of the water inlet pipe 102, and a second circular plate 202 is connected to the side of the first circular plate 201 away from the water meter body 101 through a sliding component. The first circular plate 201 and the second circular plate 202 are respectively provided with a plurality of first through holes 203 and second through holes 204, and the water inlet pipe 102 is provided with a driving component for driving the second circular plate 202;

[0051] It should be noted here that: by setting the impact reduction component, under the driving action of the driving component, the impact on the water meter caused by the transient pressure change in the pipeline is reduced.

[0052] See also Figure 4 and Figure 6 The driving assembly shown in the figure includes first driving straight grooves 301 symmetrically arranged on the inner wall of the water inlet pipe 102, one end of the two first driving straight grooves 301 penetrates the water inlet pipe 102, the other end of the two first driving straight grooves 301 is provided with a spiral groove 302, the two spiral grooves 302 are provided with a second driving straight groove 303 at one end away from the first driving straight groove 301, the two spiral grooves 302 are provided with driving rods 304, and the opposite ends of the two driving rods 304 are connected to the second circular plate 202;

[0053] It should be noted here that: through the setting of the driving component, when the pressure wave generated by water hammer in the water inlet pipe 102 reaches the water inlet pipe 102, the second circular plate 202 will be pushed to move close to the first circular plate 201 under the instantaneous high-pressure impact force. In the process of the second circular plate 202 moving close to the first circular plate 201, under the driving action of the driving rod 304 and the first driving straight groove 301, the spiral groove 302 and the second driving straight groove 303, the second circular plate 202 will move close to the first circular plate 201 in the form of lateral movement-rotation-lateral movement, so that the second through hole 204 on the second circular plate 202 and the first through hole 203 on the first circular plate 201 are staggered, thereby reducing the flow rate of water in the water inlet pipe 102.

[0054] See also Figure 4 and Figure 6 The sliding assembly shown in the figure includes two sliding grooves 401 arranged opposite to each other on the inner wall of the water inlet pipe 102, the two sliding grooves 401 are slidably connected with sliding plates 402, the opposite ends of the two sliding plates 402 are connected to the second circular plate 202, and the second circular plate 202 is provided with a connecting assembly for connecting with the two sliding plates 402;

[0055] It should be noted here that the sliding assembly is provided to provide guidance and limiting functions for the movement of the second circular plate 202 .

[0056] See also Figure 5 , the two sliding grooves 401 shown in the figure are provided with a telescopic assembly for telescoping the movement of the second circular plate 202, the telescopic assembly includes a telescopic tube 501 fixedly connected to the inner wall of the sliding groove 401 away from the first circular plate 201, the telescopic tube 501 is slidably connected with a telescopic rod 502, one end of the telescopic rod 502 is connected to the second circular plate 202, the other end of the telescopic rod 502 is located in the telescopic tube 501, and is fixedly connected with a telescopic plate 503, the side wall of the telescopic rod 502 located inside the telescopic tube 501 is sleeved with a first spring 504, and the two ends of the first spring 504 are respectively connected to the telescopic plate 503 and the inner wall of the telescopic tube 501;

[0057] It should be noted here that the telescopic assembly is provided to provide guidance and reset functions for the movement of the second circular plate 202 .

[0058] See also Figure 4 and Figure 5 , the connecting assembly shown in the figure includes an arc groove 6 opened on the side wall of the second circular plate 202, the arc groove 6 is rotatably connected to a connecting plate, and one end of the connecting plate is connected to the second circular plate 202;

[0059] It should be noted here that the connection assembly is provided to provide a guiding and limiting function for the rotation of the second circular plate 202 .

[0060] In this embodiment, the watch movement can be a volumetric watch movement, a speed watch movement or any watch movement in the prior art.

[0061] In this embodiment, the water inlet controllable valve 10 and the water return controllable valve 13 are 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.

[0062] The method for using the dual-circulation smart water meter includes the following steps:

[0063] S1. The water inlet inlet 108 is connected to the water supply pipeline of the direct drinking water network, and the water inlet outlet 109 is connected to the user's household water supply pipe, the return pipe inlet 110 is connected to the user's return pipe, and the return pipe outlet 111 is connected to the return pipe of the direct drinking water network;

[0064] S2. The user's water consumption is measured and counted through the water inlet meter core 805. For example, a normal large barrel of water has a capacity of 18L, and the protection value is set to 20L. When the continuous water consumption exceeds 20L, it is temporarily determined that the user's home is leaking water, and the water inlet controllable valve 10 is closed for the first time. After the valve is closed for m seconds, the alarm is automatically released, and the user can still use water. When the continuous water consumption exceeds 20L again, the water inlet controllable valve 10 is closed again and an alarm is sounded. This is repeated three times in a row, and it is determined that there is a water leak. The water inlet controllable valve 10 is completely closed, and an alarm message is sent to the user's mobile phone. After confirming that the water is manually released or has returned to normal, the closure is released, thereby realizing the water leak alarm function, which can prevent the risk of water waste caused by pipe damage or when the faucet 107 in the user's home is not closed;

[0065] S3. When the user has a pipe leak or intentionally steals water, the pressure in the water inlet pipe drops. When the pressure in the water inlet pipe drops below 0.053MPa, the pressure transmitter 9 transmits a signal to the main controller, opens the water inlet controllable valve 10, and replenishes water. After the pressure rises to above 0.1MPa, it delays for 5s. If no new water is detected to flow through within 5s (i.e., the water inlet meter core 805 has no flow accumulation), the water inlet controllable valve 10 is closed. If there is water flowing through (the meter core has flow accumulation, which is normal water use by the user), re-detect 5s after the water flow stops. After three consecutive detections, the meter core still has no flow accumulation, but the pressure in the water inlet pipe is lower than 0.053MPa, which can be determined as a pipe leak or intentional water theft by the user. At this time, an alarm message can be sent and the water inlet controllable valve 10 can be completely closed, thereby forming a drip alarm valve closure, which can prevent accidental pipe leaks or intentional water theft by the user.

[0066] Working principle: When the dual-circulation intelligent water meter is in use, the water inlet pipe inlet 108 is connected to the water supply pipeline of the direct drinking water network, and the water inlet pipe outlet 109 is connected to the user's household water supply pipe, and the return pipe inlet 110 is connected to the user's return pipe, and the return pipe outlet 111 is connected to the return pipe of the direct drinking water network. After the water meter body 101 is connected, it can be used normally. During the entire use process, the water consumption on the water inlet pipe section can be obtained through communication between the main controller and the metering component. When it is detected that the metering component uses a lot of water, the return water controllable valve 13 can be kept closed. Due to the large amount of water used, there will be no water accumulation problem on the water inlet pipe section. At the same time, when it is detected that the water consumption is small, the return water controllable valve can be automatically controlled 13 opening and closing, so as to circulate the water accumulated in the water inlet pipe back to effectively avoid the pollution problem of dead water. At the same time, the water meter has two built-in metering units and dual-pipeline differential metering. Metering starts only when the user's actual water consumption produces a difference. The circulating water will not be metered and charged. It not only meets the need for accurate metering, but also solves the need for flowing living water for direct drinking water, meets the hygienic requirements of drinking water, and monitors and manages the user's water consumption and circulating water volume in real time and at fixed points, which can realize gradient charging and prepayment, and collect various parameters of the water meter into the system through the intelligent control system, so as to dynamically grasp the user's water consumption, calculate the water fee, and timely discover abnormal water use by analyzing various data;

[0067] During the use of the water meter body 101, the user's water consumption can be measured and counted through the water inlet meter core 805. For example, a normal large barrel of water has a capacity of 18L, and the protection value is set to 20L. When the continuous water consumption exceeds 20L, it is temporarily determined that the user's home is leaking water, and the water inlet controllable valve 10 is closed for the first time. After the valve is closed for m seconds, the alarm is automatically released, and the user can still use water. When the continuous water consumption exceeds 20L again, the water inlet controllable valve 10 is closed again and an alarm is sounded. This is repeated three times in a row, and it is determined that there is a water leak. The water inlet controllable valve 10 is completely closed, and an alarm message is sent to the user's mobile phone. After confirming that the water is manually released or has returned to normal, the closure is released, thereby forming a water leak alarm function, which can prevent the risk of water waste caused by pipe damage or when the faucet 107 in the user's home is not closed;

[0068] At the same time, when the user has a pipe leak or intentionally steals water, the pressure in the pipe is slowly released. When the pressure is less than 0.053MPa, the pressure transmitter 9 transmits a signal to the main controller, opens the valve to add water, and the pipe is filled with water. After the pressure rises to 0.1MPa, it delays for 5s. If no new water is detected to flow within 5s, the valve is closed. If water flows, the water flow stops for 5s and the timing is restarted. After three consecutive tests, if the pressure in the water inlet pipe is lower than 0.053MPa and the meter core does not measure, it can be determined as a pipe leak or a user intentionally stealing water. At this time, an alarm message can be sent and the water inlet controllable valve 10 can be closed, thereby forming a leak alarm valve closure, which can prevent accidental pipe leaks or intentional water theft by users.

[0069] When the water meter body 101 is in use, when the faucet 107 in the user's home is suddenly closed, the water flow speed in the pipe decreases sharply. According to the momentum theorem, this will cause the momentum of the water flow to change. Since water is incompressible, this change in momentum will generate a pressure wave in the pipe. The pressure wave propagates along the pipe toward the incoming water. When the pressure wave reaches the water inlet pipe 102, it will push the second circular plate 202 to move closer to the first circular plate 201 under the instantaneous high-pressure impact force. In the process of the second circular plate 202 moving closer to the first circular plate 201, the driving rod 304 will be in contact with the first driving straight groove 301 and the spiral groove 304. 02 and the second driving straight groove 303, the second circular plate 202 moves toward the first circular plate 201 in the form of lateral movement-rotation-lateral movement, so that the second through hole 204 on the second circular plate 202 and the first through hole 203 on the first circular plate 201 are staggered, thereby reducing the flow speed of the water flow in the water inlet pipe 102, thereby reducing the instantaneous impact force of the water flow caused by closing the faucet 107, reducing the instantaneous impact force of the water flow, and thus reducing the risk of damage to the internal components of the water meter body 101 due to the water hammer phenomenon;

[0070] After the impact force of the water flow in the pipeline disappears, the water flow path inside the pipeline is cut off, so that the water flow inside the pipeline is in a relatively static state. At this time, the water pressure on both sides of the water meter is balanced. Therefore, the second circular plate 202 will move away from the first circular plate 201 under the elastic action of the first spring 504, thereby providing flow space for the next flow of drinking water and ensuring the flow pressure of the water in the water inlet pipe 102.

[0071] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0072] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and all of these changes should be included within the scope of protection of the present invention.

Claims

1. Dual-circulation smart water meter, including: Water meter body (101); It is characterized by further comprising: A water inlet pipe (102) and a water return pipe (103) are respectively arranged on a water meter body (101); the two ends of the water inlet pipe (102) are respectively provided with a water inlet pipe inlet (108) and a water inlet pipe outlet (109); the two ends of the water return pipe (103) are respectively provided with a water return pipe inlet (110) and a water return pipe outlet (111); the water inlet pipe inlet (108) and the water return pipe outlet (111) are located at the same end of the water meter body (101); the water inlet pipe outlet (109) and the water return pipe inlet (110) are located at the other end of the water meter body (101); the water inlet pipe inlet (108), the water meter body (101) and the water return pipe outlet (109) are respectively provided with a water return pipe inlet (110) and a water return pipe outlet (111); A first water flow path is formed between the water inlet (101) and the water inlet pipe outlet (109), a second water flow path is formed between the water return pipe inlet (110), the water meter body (101) and the water return pipe outlet (111), and the water meter body (101) forms a double-circuit circulation in cooperation with the first water flow path and the second water flow path; the water inlet pipe (102) and the water return pipe (103) are connected to a three-way pipe (106) at the user end, the other end of the three-way pipe (106) is connected to a faucet (107) in the user's home, or the water inlet pipe (102) and the water return pipe (103) are directly connected to a circulating water faucet (107) with two-way interfaces for inlet and return water; Two meter cores are arranged in a water meter body (101), the two meter cores are respectively a water inlet meter core (805) arranged in a water inlet pipeline and a water return meter core (804) arranged in a water return pipeline, and the water inlet pipe (102) is provided with a buffer energy storage mechanism for mitigating the instantaneous impact force of water flow caused by closing a faucet (107).

2. The dual-circulation intelligent water meter according to claim 1 is characterized in that: The two watch cores are provided with a counter display area (801), a page switching key (802) and an electronic display screen (803).

3. The dual-circulation intelligent water meter according to claim 1 is characterized in that: It also includes a pressure transmitter (9), which is installed on the water inlet pipe (102) or a pipeline connected to the water inlet pipe (102).

4. The dual-circulation intelligent water meter according to claim 3 is characterized in that: Two controllable valves are arranged in the water meter body (101), the two controllable valves being respectively a water inlet controllable valve (10) arranged in the water inlet pipe (102) and a water return controllable valve (13) arranged in the water return pipe (103). When the faucet (107) is not turned on, the water inlet controllable valve (10) is closed. When the faucet (107) is turned on, the pressure in the pipeline is instantly reduced, and the main controller controls the water inlet controllable valve (10) to open, so that the user uses water normally. The water inlet controllable valve (10) and the water return controllable valve (13) are electrically connected to the main controller.

5. The dual-circulation intelligent water meter according to claim 4 is characterized in that: A battery (11) is provided in the water meter body (101), and the battery (11) is detachably connected to the water meter body (101). The battery (11) is electrically connected to a main controller, a pressure transmitter (9), a water inlet controllable valve (10), and a water return controllable valve (13).

6. The dual-circulation intelligent water meter according to claim 1, characterized in that: The water meter body (101) is provided with a barcode scanning area (12), and the barcode scanning area (12) has a barcode representing water meter information.

7. The dual-circulation intelligent water meter according to claim 1, characterized in that: The buffer energy storage mechanism comprises a first circular plate (201) fixedly connected to the inner wall of a water inlet pipe (102); a side of the first circular plate (201) away from the water meter body (101) is connected to a second circular plate (202) via a sliding component; the first circular plate (201) and the second circular plate (202) are respectively provided with a plurality of first through holes (203) and second through holes (204); and the water inlet pipe (102) is provided with a driving component for driving the second circular plate (202).

8. The dual-circulation intelligent water meter according to claim 7, characterized in that: The driving assembly comprises first driving straight grooves (301) which are symmetrically arranged on the inner wall of the water inlet pipe (102), one end of the two first driving straight grooves (301) passes through the water inlet pipe (102), the other end of the two first driving straight grooves (301) is provided with a spiral groove (302), the end of the two spiral grooves (302) away from the first driving straight groove (301) is provided with a second driving straight groove (303), the two spiral grooves (302) are provided with driving rods (304), and the opposite ends of the two driving rods (304) are connected to the second circular plate (202).

9. The dual-circulation intelligent water meter according to claim 1, characterized in that: The sliding assembly comprises two sliding grooves (401) arranged opposite to each other and opened on the inner wall of the water inlet pipe (102); the two sliding grooves (401) are slidably connected with sliding plates (402); opposite ends of the two sliding plates (402) are connected to a second circular plate (202) via a connecting assembly; and the second circular plate (202) is provided with a connecting assembly for connecting with the two sliding plates (402). The two sliding grooves (401) are provided with a telescopic assembly for telescoping the movement of the second circular plate (202), and the telescopic assembly comprises a telescopic tube (501) fixedly connected to the inner wall of the sliding groove (401) away from the first circular plate (201), the telescopic tube (501) is slidably connected with a telescopic rod (502), one end of the telescopic rod (502) is connected to the second circular plate (202), the other end of the telescopic rod (502) is located in the telescopic tube (501) and is fixedly connected with a telescopic plate (503), the side wall of the telescopic rod (502) located inside the telescopic tube (501) is sleeved with a first spring (504), and the two ends of the first spring (504) are respectively connected to the telescopic plate (503) and the inner wall of the telescopic tube (501). The connection assembly comprises an arc groove (6) opened on the side wall of the second circular plate (202), the arc groove (6) being rotatably connected to a connection plate, one end of which is connected to the second circular plate (202).

10. A method for using a dual-circulation intelligent water meter, which uses the dual-circulation intelligent water meter according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Connect the water inlet inlet (108) of the water inlet pipe (102) to the water supply pipeline of the direct drinking water network, and connect the water inlet outlet (109) of the water inlet pipe (102) to the household water inlet pipe, connect the return pipe inlet (110) of the return pipe (103) to the user's return pipe, and connect the return pipe outlet (111) of the return pipe (103) to the return pipe of the direct drinking water network; S2. The user's water consumption is measured and counted through the water inlet meter core (805). When the user's continuous water consumption exceeds the set value, it is temporarily determined that the user's home has a water leak, and the water inlet controllable valve (10) is closed for the first time. After the valve is closed for m seconds, the alarm is automatically released, and the user can still use water. When the continuous water consumption exceeds the set value again, the water inlet controllable valve (10) is closed again and an alarm is sounded. This is repeated three times in a row, and it is determined that there is a water leak. The water inlet controllable valve (10) is completely closed, and a water leak alarm message is sent to the user's mobile phone, which can prevent the risk of water waste caused by pipe damage or the user's home faucet (107) not being closed; S3. When the user has a pipe leak or intentionally steals water, the liquid pressure in the water inlet pipe will slowly decrease. When the pressure in the pipe is lower than the preset threshold value 1, the main controller controls the water inlet controllable valve (10) to open and add water. When the pressure in the pipe is higher than the preset threshold value 2, a delay of n seconds is performed. If no new water flow is detected within n seconds, the water inlet controllable valve (10) is closed. If water flows, the timing is restarted after the water flow stops for n seconds. After three consecutive times, when the pressure in the pipe is lower than the preset threshold value 1, it is determined that the user's pipe is leaking or intentionally stealing water, an alarm message is sent, and the water inlet controllable valve (10) is closed; S4. When the faucet (107) in the user's home is suddenly closed, the water flow velocity in the pipe decreases sharply. According to the momentum theorem, this will cause the momentum of the water flow to change. Since water is incompressible, this change in momentum will generate a pressure wave in the pipe. The pressure wave propagates along the pipe in the direction of the incoming water. When the pressure wave reaches the water inlet pipe (102), under the action of the buffer energy storage mechanism, the driving action of the driving component is utilized to slow down the instantaneous impact force of the water flow caused by closing the faucet (107), thereby reducing the instantaneous impact force of the water flow.

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