Intelligent tankless pressure boosting water supply device

Abstract

The present application belongs to the technical field of water supply equipment, and particularly relates to a smart tankless cascade water supply equipment, which comprises an intelligent water collector, a first pressure sensor, a control cabinet and a first flowmeter, the intelligent water collector is provided with an intelligent exhaust device, the intelligent exhaust device comprises a shell and a mounting cover, a micro switch is arranged in the mounting cover, a float ball and a sealing gasket are arranged in the shell, the float ball is provided with an action lever, when the intelligent water collector is filled with water, the float ball floats up to seal the air passage, and the action lever triggers the micro switch; when the water level in the intelligent water collector drops to the point that the action lever is away from the micro switch, the control cabinet controls the water pump to stop running, and records the value of the first pressure sensor and the value of the first flowmeter at this moment; when the point corresponding to the value of the first pressure sensor and the value of the first flowmeter is on or above the curve of the curve graph, the control cabinet controls the water pump to stop running. According to whether the actual municipal pipe network can meet the water use of the user, the water pump is stopped or started, the water supply is ensured as much as possible, and the user experience is improved.

Description

Technical Field

[0001] This invention belongs to the field of water supply equipment technology, and specifically relates to an intelligent tankless pressure boosting water supply device. Background Technology

[0002] Existing conventional tank-type negative pressure-free water supply equipment, such as Figure 1 , 2 As shown, the system mainly consists of a flow stabilizing tank 1-1, a booster pump set 1-2, a pressure tank 1-3, a control cabinet, and piping. The flow stabilizing tank 1-1 is equipped with an electric butterfly valve 1-4 and an electric contact pressure gauge 1-5 at its inlet. The inlet of the flow stabilizing tank 1-1 is connected to the municipal water supply network. The outlet of the booster pump set 1-2 is connected to the main water outlet pipe 1-6, which is connected to the user's water supply network. The pressure tank 1-3 is connected to the main water outlet pipe 1-6. When the municipal water supply network pressure is stable, the equipment directly draws water from the municipal network using a pressure boosting system. During peak water usage periods, when the electric contact pressure gauge 1-5 at the inlet of the flow stabilizing tank 1-1 detects a pressure lower than the set value, the control cabinet activates the pressure stabilizing system. The electric butterfly valve 1-4 at the inlet of the flow tank 1-1 is closed, preventing water from being drawn from the municipal water supply network and thus avoiding over-pumping. Water stored in the flow tank 1-1 is used to supply the user end. When the low-level detection device in the flow tank 1-1 detects that the liquid level has dropped to the lowest point, the control cabinet sends a signal to the booster pump group 1-2, controlling it to stop operation. When the pressure gauge 1-5 at the inlet of the flow tank 1-1 detects that the pressure has returned to the set value, the electric butterfly valve 1-4 is opened, and the booster pump group 1-2 resumes operation. A pressure tank 1-3 is installed at the equipment outlet to prevent water hammer and maintain pressure during shutdown. The water in the flow tank 1-1 is generally only enough for about 30 seconds of use. After 30 seconds, the booster pump group 1-2 stops operating, causing a water outage.

[0003] The shortcomings of existing conventional tank-type negative pressure-free water supply equipment are as follows: Currently, most manufacturers and water companies define peak water usage periods based on the pressure at the municipal water supply network inlet. The equipment is set with a pressure value at the factory; when the municipal inlet pressure falls below this value, the municipal water supply inlet needs to be shut off, resulting in a water outage. However, whether the municipal water supply can meet user needs depends not only on the pressure at the municipal water supply network inlet but also on the size of the municipal pipeline, the parameters of the water supply equipment itself, and the water flow rate. Sometimes, the municipal water supply pressure may be low, but it may still be sufficient to supply water to users. In such cases, shutting off the electric butterfly valve is clearly unreasonable and negatively impacts the user experience. Summary of the Invention

[0004] The purpose of this invention is to provide a smart tankless booster water supply device that shuts down the water pumps based on whether the actual municipal water supply network can meet the user's water demand, thereby ensuring water supply as much as possible and improving the user experience.

[0005] The objective of this invention is achieved as follows:

[0006] A smart tankless booster water supply system includes a smart water collector, a first pressure sensor for detecting municipal water pressure, and a control cabinet. The inlet of the smart water collector is connected to the municipal water network, and the outlet is connected to the inlet of a water pump. The outlet of the water pump is connected to a main outlet pipe, which is connected to the user's water network. A first flow meter is installed on the main outlet pipe to detect the flow rate of the water flowing out of the main outlet pipe. The smart water collector is equipped with a smart venting device, which includes a housing mounted on the smart water collector and a mounting cover mounted on top of the housing. A micro switch is installed inside the mounting cover. A float and a sealing gasket are installed inside the housing. The sealing gasket has an air vent channel connecting the inner cavity of the housing and the inner cavity of the mounting cover. The float has an actuating rod that passes through the air vent channel and enters the inner cavity of the mounting cover. The first pressure sensor, the first flow meter, and the micro switch are respectively... Electrically connected to the control cabinet, when the intelligent water collector is full of water, the float rises under the buoyancy of the water, sealing the air outlet channel. The actuator triggers a microswitch, which transmits a signal to the control cabinet. When the water level in the intelligent water collector drops to the point where the actuator leaves the microswitch, the microswitch transmits a signal to the control cabinet, which then stops the water pump and records the values ​​of the first pressure sensor and the first flow meter at that moment. When the number of sets of first pressure sensor values ​​and first flow meter values ​​recorded by the control cabinet reaches a set number, multiple sets of first pressure sensor values ​​and first flow meter values ​​form a curve with the first pressure sensor values ​​as the X-axis and the first flow meter values ​​as the Y-axis. When the points corresponding to the first pressure sensor values ​​and first flow meter values ​​are on or above the curve of the curve, the control cabinet stops the water pump.

[0007] In the aforementioned intelligent tankless pressure boosting water supply device, the first pressure sensor is installed on the intelligent water collector.

[0008] In the aforementioned intelligent tankless pressure boosting water supply equipment, a pressure gauge and a pressure switch are installed on the main outlet pipe, and the pressure switch is electrically connected to the control cabinet.

[0009] In the above-mentioned intelligent tankless pressure boosting water supply equipment, two or more water pumps are connected in parallel. The inlet of each water pump is connected to the outlet of the intelligent water collector through a flexible joint, a butterfly valve, and an inlet branch pipe. The outlet of each water pump is connected to the main outlet pipe through an outlet bend, a check valve, a flexible joint, and a butterfly valve.

[0010] In the aforementioned intelligent tankless booster water supply system, a pressure tank is connected to the end of the main outlet pipe furthest from the user's pipe network. The pressure tank is equipped with a pressure gauge. A second pressure sensor is installed on the main outlet pipe to detect the water pressure. The inlet of the intelligent water collector is connected to the municipal pipe network via an inlet pipe. A second flow meter is installed on the inlet pipe to detect the inlet flow rate. The pressure gauge, the second pressure sensor, and the second flow meter are electrically connected to the control cabinet. When the water pump is running, if the pressure gauge reading equals the second pressure sensor reading, and the second flow meter reading is greater than the first flow meter reading, the control cabinet indicates a leak. When the water pump is stopped, if the pressure gauge reading equals the second pressure sensor reading, the second flow meter reading is greater than 0, and the first flow meter reading is 0, the control cabinet indicates a leak at the pump inlet.

[0011] In the aforementioned intelligent tankless pressure boosting water supply system, the diameter of the intelligent water collector is one size larger than the diameter of the inlet pipe.

[0012] In the aforementioned intelligent tankless booster water supply equipment, the water pump is equipped with an external frequency converter, which is electrically connected to the control cabinet.

[0013] In the aforementioned intelligent tankless pressure boosting water supply equipment, the pressure tank is connected to the main water outlet pipe via a metal flexible hose.

[0014] In the aforementioned intelligent tankless pressure booster water supply equipment, a weighing sensor is installed below the pressure tank to detect its weight. The weighing sensor is electrically connected to the control cabinet. When the water supply equipment is first installed and debugged, and the water pump is stopped, the control cabinet records the value of the weighing sensor, i.e., the initial weight of the pressure tank. During subsequent use, when the water pump is stopped, if the difference between the weighing sensor value and the initial weight of the pressure tank is greater than a set value, the control cabinet will indicate that the pressure tank is leaking air.

[0015] In the aforementioned intelligent tankless pressure boosting water supply equipment, the weighing sensor is located below the bottom support legs of the pressure tank.

[0016] In the aforementioned intelligent tankless pressure booster water supply equipment, the control cabinet is equipped with an Internet of Things (IoT) box. When the water supply equipment leaks water and / or gas, the control cabinet remotely notifies after-sales personnel to check the situation on-site via the IoT box.

[0017] In the above-mentioned intelligent tankless pressure water supply equipment, the shell is provided with a base, the base is provided with a sealing gasket below the base, the base is provided with an air outlet hole that connects the inner cavity of the mounting cover and the air outlet channel, the upper end of the actuating rod is slidably installed in the base, the mounting cover is a hollow cylindrical structure, the lower end of the mounting cover is fitted onto the shell, and the lower end surface of the mounting cover is provided with multiple small vent holes.

[0018] In the aforementioned intelligent tankless pressure boosting water supply device, multiple air outlets are evenly distributed around the circumference.

[0019] In the aforementioned intelligent tankless pressure boosting water supply device, the housing includes an upper vent pipe, a lower vent pipe, and a clamp connecting the upper and lower vent pipes. The mounting cover is made of stainless steel sheet, the sealing gasket is made of silicone, and the base is made of rubber. The base and housing are fixedly connected by bolts. The sealing gasket is fixedly connected to the base by an annular groove on the sealing gasket and an annular protrusion on the base. The float and the actuating rod are fixedly connected by an internal thread on the float connector and an external thread at the lower end of the actuating rod. The lower end of the housing is welded to the intelligent water collector.

[0020] In the above-mentioned intelligent tankless pressure boosting water supply equipment, a signal indicator light that is electrically connected to the control cabinet is provided on the top of the mounting cover, and a filter screen is provided on the top of the lower end face.

[0021] In the aforementioned intelligent tankless pressure boosting water supply device, the top of the intelligent water collector is provided with multiple through holes connecting the inner cavity of the intelligent water collector and the inner cavity of the shell.

[0022] In the above-mentioned intelligent tankless superimposed pressure water supply equipment, the water pump is equipped with an automatic venting device at its exhaust port. The automatic venting device includes an exhaust pipe connected to the bottom of the water pump exhaust port, an automatic venting valve set at the top of the exhaust pipe, a liquid level sensor set on the exhaust pipe and located below the automatic venting valve, and a signal indicator light set at the outer end of the liquid level sensor. The liquid level sensor is electrically connected to the control cabinet.

[0023] In the above-mentioned intelligent tankless pressure boosting water supply equipment, the structure of the automatic air vent valve can be as follows: the automatic air vent valve includes a housing, the housing is provided with an air vent, and a ball is provided inside the housing that can close the air vent under the action of water buoyancy.

[0024] In the aforementioned intelligent tankless pressure boosting water supply equipment, the structure of the automatic air vent valve can also be the water pump automatic air vent valve disclosed in Chinese Utility Model Patent CN218523093U.

[0025] The outstanding and beneficial technical effects of this invention compared to the prior art are:

[0026] 1. This invention shuts down water pumps based on whether the actual municipal water supply network can meet the user's water demand, ensuring water supply as much as possible and improving the user experience. This invention generates a curve based on multiple sets of pressure sensor values ​​and flow count values ​​when the water pump is shut down. When the point corresponding to the pressure sensor value and flow count value collected by the control cabinet is on or above the curve, the control cabinet controls the water pump to stop running. This effectively prevents over-drainage of the municipal water supply network caused by the control cabinet failing to control the pump in time due to microswitch failure after prolonged use. This invention employs dual protection, enabling the control cabinet to promptly stop the water pump and effectively prevent over-drainage of the municipal water supply network.

[0027] 2. This invention uses the values ​​from a barometer, a second pressure sensor, a second flow meter, and a first flow meter to determine if there is a leak and provides a warning, thus improving the safety of the system and making it more intelligent.

[0028] 3. This invention determines whether there is an air leak by comparing the value of the weighing sensor with the initial weight of the pressure tank and provides a warning, effectively preventing the water pump from starting frequently due to the poor pressure holding capacity of the pressure tank and extending the service life of the water pump. Attached Figure Description

[0029] Figure 1 This is the main view of the existing technology;

[0030] Figure 2 This is a top view of existing technology;

[0031] Figure 3 This is a perspective view of the present invention;

[0032] Figure 4 This is a front view of the present invention without a control cabinet;

[0033] Figure 5 This is a top view of the invention without a control cabinet;

[0034] Figure 6 This is the left view of the present invention;

[0035] Figure 7 This is a perspective view of the intelligent water collector, the first pressure sensor, the intelligent venting device, and the water inlet branch pipe of the present invention.

[0036] Figure 8 This is a perspective view of the intelligent water collector of the present invention;

[0037] Figure 9 This is a cross-sectional view of the intelligent drainage device of the present invention;

[0038] Figure 10 This is a perspective view of the mounting cover of the present invention;

[0039] Figure 11This is a front view of the automatic exhaust device of the present invention;

[0040] Figure 12 This is a graph of the present invention.

[0041] Figure label:

[0042] Figure 1 , 2 In the middle section: 1-1, flow stabilizer tank; 1-2, pressurization pump set; 1-3, pressure tank; 1-4, electric butterfly valve; 1-5, electric contact pressure gauge; 1-6, main outlet pipe.

[0043] Figure 3-12 In the diagram, 1. Intelligent water collector; 2. First pressure sensor; 3. Control cabinet; 4. Water pump; 5. Main outlet pipe; 6. First flow meter; 7. Intelligent venting device; 7a. Housing; 7b. Mounting cover; 7c. Float; 7d. Sealing gasket; 7e. Vent channel; 7f. Actuating rod; 7g. Base; 7h. Vent hole; 7i. Lower end face; 7j. Vent hole; 7k. Filter screen; 8. Micro switch; 9. Pressure tank; 10. Pressure gauge; 11. Second pressure sensor ; 12. Inlet pipe; 13. Second flow meter; 14. Weighing sensor; 15. Signal indicator light one; 16. Through hole; 17. Exhaust pipe; 18. Automatic exhaust valve; 19. Liquid level sensor; 20. Signal indicator light two; 21. Pressure gauge; 22. Pressure switch; 23. External frequency converter; 24. Flexible joint one; 25. Butterfly valve one; 26. Inlet branch pipe; 27. Outlet elbow; 28. Check valve; 29. ​​Flexible joint two; 30. Butterfly valve two; 31. Metal flexible hose. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 3 —12:

[0045] A smart tankless booster water supply system includes a smart water collector 1, a first pressure sensor 2 for detecting municipal water pressure, and a control cabinet 3. The inlet of the smart water collector 1 is connected to the municipal water network, and the outlet is connected to the inlet of a water pump 4. The outlet of the water pump 4 is connected to a main outlet pipe 5, which is connected to the user's water network. A first flow meter 6 is installed on the main outlet pipe 5 to detect the flow rate of the water flowing out of the main outlet pipe 5. The smart water collector 1 is equipped with a smart venting device 7, which includes... The intelligent water collector 1 has a housing 7a and a mounting cover 7b on top of the housing 7a. The mounting cover 7b contains a microswitch 8. The housing 7a contains a float 7c and a sealing gasket 7d. The sealing gasket 7d has an air outlet channel 7e connecting the inner cavity of the housing 7a and the inner cavity of the mounting cover 7b. The float 7c has an actuating rod 7f that passes through the air outlet channel 7e and enters the inner cavity of the mounting cover 7b. The top of the intelligent water collector 1 has multiple through holes 1 connecting the inner cavity of the intelligent water collector 1 and the inner cavity of the housing 7a. 6. The first pressure sensor 2, the first flow meter 6, and the micro switch 8 are electrically connected to the control cabinet 3. When the intelligent water collector 1 is full of water, the float 7c rises under the buoyancy of the water, sealing the air outlet channel 7e. The actuating rod 7f triggers the micro switch 8, which transmits a signal to the control cabinet 3. When the water level in the intelligent water collector 1 drops to the point where the actuating rod 7f leaves the micro switch 8, the micro switch 8 transmits a signal to the control cabinet 3. The control cabinet 3 controls the water pump 4 to stop running and records the values ​​of the first pressure sensor 2 and the first flow meter 6 at this moment. When the number of sets of values ​​of the first pressure sensor 2 and the first flow meter 6 recorded by the control cabinet 3 reaches the set number, multiple sets of values ​​of the first pressure sensor 2 and the first flow meter 6 form a curve with the value of the first pressure sensor 2 as the X-axis and the value of the first flow meter 6 as the Y-axis. When the point corresponding to the value of the first pressure sensor 2 and the value of the first flow meter 6 is on or above the curve of the curve, the control cabinet 3 controls the water pump 4 to stop running.

[0046] When the municipal water supply cannot meet the user's water demand, the principle of water pump 4 shutting down is as follows: Figure 3-12 As shown, this invention includes an intelligent water collector 1. When the water volume of the municipal water supply cannot meet the user's water demand, the liquid level in the intelligent water collector 1 will drop, becoming a non-full pipe state. The float 7c descends, causing the actuator 7f to descend synchronously. The actuator 7f leaves the microswitch 8, and the control cabinet 3 controls the water pump 4 to stop running, preventing over-pumping of the municipal water supply network. Simultaneously, the control cabinet 3 records the values ​​of the first pressure sensor 2 and the first flow meter 6 at the instant the actuator 7f leaves the microswitch 8. The values ​​of the first pressure sensor 2 and the first flow meter 6 at the instant the actuator 7f leaves the microswitch 8 are the critical points for the water pump 4 to shut down. Multiple sets of values ​​from the first pressure sensor 2 and the first flow meter 6 form a curve graph with the values ​​of the first pressure sensor 2 as the X-axis and the values ​​of the first flow meter 6 as the Y-axis (e.g., ...). Figure 12 (As shown), the control cabinet 3 then compares the values ​​of the first pressure sensor 2 and the first flow meter 6 received with the curve in the curve graph. When the points corresponding to the values ​​of the first pressure sensor 2 and the first flow meter 6 are on or above the curve in the curve graph, the control cabinet 3 controls the water pump 4 to stop running.

[0047] The working principle of the water pump 4 of this invention after being shut down due to the inability of the municipal water supply network to meet the user's water supply is as follows: When the control cabinet 3 detects that the value of the first pressure sensor 2 has reached the set value, the control cabinet 3 controls the water pump 4 to move, and the water from the municipal water supply network will fill the intelligent water collector 1.

[0048] This invention no longer determines whether to stop water supply solely based on the pressure at the municipal pipeline inlet, but rather shuts down water pump 4 based on whether the actual municipal pipeline can meet the user's water demand, thus ensuring water supply as much as possible and improving the user experience. This invention generates a curve based on multiple sets of values ​​from the first pressure sensor 2 and the first flow meter 6 when water pump 4 is shut down. When the point corresponding to the values ​​from the first pressure sensor 2 and the first flow meter 6 collected by the control cabinet 3 is on or above the curve, the control cabinet 3 controls water pump 4 to stop operating. This effectively prevents over-drainage of the municipal pipeline caused by the control cabinet 3 failing to control the water pump 4 in time due to the failure of the microswitch 8 after prolonged use. This invention employs dual protection, ensuring that the control cabinet 3 can promptly control water pump 4 to stop operating, effectively preventing over-drainage of the municipal pipeline.

[0049] In this embodiment, the number of groups is set to 20.

[0050] The working principle of the intelligent venting device 7: When the intelligent water collector 1 first starts to fill with water, the water level has not yet submerged the float 7c. Due to its own weight, the float 7c is in a drooping state. The gas in the intelligent water collector 1 will enter the inner cavity of the housing 7a through the through hole 16 at the top of the intelligent water collector 1. The gas will enter the mounting cover 7b through the venting channel 7e. Afterwards, as the water level continues to rise, the gas in the intelligent water collector 1 will be continuously discharged. At the same time, as the water level continues to rise, it will gradually submerge the float 7c. Due to buoyancy, the float 7c will continue to rise. Due to the limiting effect of the action rod 7f, the float 7c can only float in the vertical direction. Then it slowly pushes against the sealing gasket 7d, sealing the venting channel 7e. The water in the intelligent water collector 1 will not leak out through the intelligent venting device 7.

[0051] Furthermore, the first pressure sensor 2 is mounted on the smart water collector 1.

[0052] Preferably, the main water outlet pipe 5 is equipped with a pressure gauge 21 and a pressure switch 22, and the pressure switch 22 is electrically connected to the control cabinet 3. The pressure gauge 21 is provided so that the user can easily check the water outlet pressure; the pressure switch 22 is provided so that it can promptly output an alarm signal to the control cabinet 3 when the pressure in the main water outlet pipe 5 is too high or too low.

[0053] Connection structure of water pump 4: as follows Figure 3-5 The water pumps 4 are configured in parallel in two or more units. The inlet of each water pump 4 is connected to the outlet of the intelligent water collector 1 via a flexible connector 24, a butterfly valve 25, and an inlet branch pipe 26. The outlet of each water pump 4 is connected to the main outlet pipe 5 via an outlet bend 27, a check valve 28, a flexible connector 29, and a butterfly valve 30. In this embodiment, three water pumps 4 are configured in parallel.

[0054] like Figure 8 As shown, the present invention provides multiple through holes 16 on the top of the intelligent water collector 1, which connect the inner cavity of the intelligent water collector 1 and the inner cavity of the shell 7a, thereby reducing the water pressure inside the intelligent water collector 1, reducing the impact of water flow on the float 7c, and reducing noise generation.

[0055] Furthermore, such as Figure 3-6 As shown, the end of the main water outlet pipe 5 furthest from the user's pipe network is connected to a pressure tank 9. The pressure tank 9 is equipped with a pressure gauge 10. The main water outlet pipe 5 is equipped with a second pressure sensor 11 to detect the water pressure of the main water outlet pipe 5. The inlet of the intelligent water collector 1 is connected to the municipal pipe network through an inlet pipe 12. The inlet pipe 12 is equipped with a second flow meter 13 to detect the inlet flow rate. The pressure gauge 10, the second pressure sensor 11, and the second flow meter 13 are electrically connected to the control cabinet 3.

[0056] During normal use of this invention, i.e., when there is no leakage in the system, there are four states:

[0057] The first scenario is that the equipment is in operation and the pressure of the pressure gauge 10 of the pressure tank 9 is equal to the pressure of the second pressure sensor 11 of the main water outlet pipe 5. In this case, the instantaneous flow rate collected by the second flow meter 13 is the same as the instantaneous flow rate collected by the first flow meter 6.

[0058] The second scenario is that the equipment is in operation, but the pressure of the pressure gauge 10 in the pressure tank 9 is less than the pressure of the second pressure sensor 11 in the main water outlet pipe 5. In this case, the instantaneous flow rate collected by the second flow meter 13 is greater than the instantaneous flow rate collected by the first flow meter 6 because some water has been added to the pressure tank 9.

[0059] The third scenario is that the equipment is in a dormant state, meaning that the water pump 4 is stopped, and the instantaneous flow rate collected by the first flow meter 6 and the instantaneous flow rate collected by the second flow meter 13 are both 0. This is because there is no water usage at the user end.

[0060] The fourth type is when the equipment is in a dormant state, that is, the water pump 4 is stopped, the instantaneous flow rate collected by the second flow meter 13 is 0, and the instantaneous flow rate collected by the first flow meter 6 is greater than 0. This is because the pressure tank 9 releases the potential energy inside the tank to supply water to the user at a small flow rate.

[0061] When water pump 4 is running, if the reading on pressure gauge 10 equals the reading on the second pressure sensor 11, and the reading on the second flow meter 13 is greater than the reading on the first flow meter 6, control cabinet 3 will indicate a leak. When water pump 4 is stopped, if the reading on pressure gauge 10 equals the reading on the second pressure sensor 11, the reading on the second flow meter 13 is greater than 0, and the reading on the first flow meter 6 is 0, control cabinet 3 will indicate a leak at the inlet of water pump 4. This invention uses the readings from pressure gauge 10, the second pressure sensor 11, the second flow meter 13, and the first flow meter 6 to determine if a leak exists and provides an alert, thus improving system safety and making the system more intelligent.

[0062] Furthermore, the diameter of the intelligent water collector 1 is one size larger than that of the inlet pipe 12. As long as the intelligent water collector 1 is always full of water, due to the redundancy effect, the municipal pipe network will not generate negative pressure, and the water pump 4 will not have any problems running.

[0063] Preferably, the water pump 4 is equipped with an external frequency converter 23, which is electrically connected to the control cabinet 3. Another function of the second pressure sensor 11 is that the control cabinet 3 adjusts the operating speed of the water pump 4 through the external frequency converter 23 based on the value detected by the second pressure sensor 11. When the pressure of the main water outlet pipe 5 is lower than the set value, the control cabinet 3 controls the water pump 4 to increase its speed through the external frequency converter 23, while simultaneously adding water to the pressure tank 9; when the pressure of the main water outlet pipe 5 reaches the set value, the external frequency converter 23 gradually reduces the speed until the water pump 4 is completely dormant.

[0064] The pressure tank 9 is used to stabilize the outlet pressure. When the user supplies water at a low flow rate, the pressure potential energy stored in the pressure tank 9 can be used to meet the user's needs, avoiding frequent start-stop of the water pump 4. The pressure tank 9 is connected to the main water outlet pipe 5 via a metal hose 31.

[0065] During use, due to natural factors and quality issues of the pressure tank itself, gas leakage may occur inside the pressure tank 9, causing the pressure inside the pressure tank 9 to drop continuously, which in turn leads to a decrease in the pressure holding capacity of the pressure tank 9 and frequent start-ups of the water pump 4.

[0066] When the pressure tank 9 leaks air, the pressure potential energy will decrease. When the water pump 4 is in sleep mode, that is, when the water pump 4 stops running, the amount of water that can be squeezed into the pressure tank 9 will increase, which will lead to an increase in the weight of the pressure tank 17. Therefore, we can judge whether the pressure tank 17 is leaking air by the change in the weight of the pressure tank 17 when the water pump 4 is in sleep mode.

[0067] The intelligent method for determining whether the pressure tank 9 is leaking: such as Figure 4 As shown, a weighing sensor 14 for detecting the weight of the pressure tank 9 is provided below the pressure tank 9. The weighing sensor 14 is electrically connected to the control cabinet 3. When the water supply equipment is installed and debugged for the first time and the water pump 4 is in a stopped state, the control cabinet 3 records the value of the weighing sensor 14, that is, the initial weight of the pressure tank 9. In subsequent use, when the water pump 4 is in a stopped state and the difference between the value of the weighing sensor 14 and the initial weight of the pressure tank 9 is greater than the set value, the control cabinet 3 prompts that the pressure tank 9 is leaking air.

[0068] Installation structure of weighing sensor 14: The weighing sensor 14 is installed below the bottom support feet of the pressure tank 9.

[0069] To facilitate timely notification of after-sales personnel to inspect the site, the control cabinet 3 is equipped with an IoT box. When water supply equipment leaks water and / or gas, the control cabinet 3 remotely notifies after-sales personnel to inspect the site via the IoT box. Since some equipment is located in remote areas, after-sales personnel cannot promptly detect and resolve the issue, leading to a significant waste of electrical energy over time. This invention effectively avoids this waste.

[0070] The specific structure of the intelligent exhaust device 7 is as follows: Figure 9 , 10 As shown, the housing 7a is provided with a base 7g, and the sealing gasket 7d is provided below the base 7g. The base 7g is provided with an air outlet 7h that connects the inner cavity of the mounting cover 7b and the air outlet channel 7e. The upper end of the actuating rod 7f is slidably disposed in the base 7g, further restricting the sliding of the actuating rod 7f. The mounting cover 7b is a hollow cylindrical structure. The lower end of the mounting cover 7b is fitted onto the housing 7a. The lower end face 7i of the mounting cover 7b is provided with multiple small exhaust holes 7j. The gas flowing from the housing 7a into the mounting cover 7b is discharged into the air through the small exhaust holes 7j.

[0071] To achieve better air output, multiple air outlets are evenly distributed around the circumference of the 7h vent.

[0072] Furthermore, the housing 7a includes an upper exhaust pipe, a lower exhaust pipe, and a clamp connecting the upper and lower exhaust pipes. The mounting cover 7b is made of stainless steel sheet. The sealing gasket 7d is made of silicone. The base 7g is made of rubber. The base 7g is fixedly connected to the housing 7a by screws. The sealing gasket 7d is fixedly connected to the base 7g by an annular groove on the sealing gasket 7d and an annular protrusion on the base 7g. The float 7c and the actuating rod 7f are fixedly connected by an internal thread on the float 7c connector and an external thread at the lower end of the actuating rod 7f. The lower end of the housing 7a is welded to the intelligent water collector 1.

[0073] Furthermore, a signal indicator light 15 electrically connected to the control cabinet 3 is located above the mounting cover 7b, and a filter screen 7k is located above the lower end face 7i. When the actuating rod 7f does not contact the micro switch 8, a signal is transmitted to the control cabinet 3, and the control signal indicator light 15 of the control cabinet 3 displays red, indicating that the intelligent water collector 4 is venting. When the actuating rod 7f triggers the micro switch 8, a signal is transmitted to the control cabinet 3, and the control signal indicator light 15 of the control cabinet 3 displays green, indicating that the intelligent water collector 4 has completed venting and the liquid level is completely filled into the intelligent water collector 4, which is also a prerequisite for the water pump to reach the start-up state. Installation and commissioning personnel can intuitively understand whether the intelligent water collector 4 has completed venting by observing the status of the signal indicator light 15. The filter screen 7k effectively prevents dust and insects from entering the vent hole 7j.

[0074] The automatic air venting device structure of water pump 4 is as follows: Figure 11As shown, the water pump 4 is equipped with an automatic venting device at its exhaust port. The automatic venting device includes an exhaust pipe 17 connected to the bottom of the water pump 4 exhaust port, an automatic venting valve 18 located at the top of the exhaust pipe 17, a liquid level sensor 19 located on the exhaust pipe 17 and below the automatic venting valve 18, and a signal indicator light 20 located at the outer end of the liquid level sensor 19. The liquid level sensor 19 is electrically connected to the control cabinet 3. When water pump 4 is venting, the vent pipe 17 is not yet full of water. The level sensor 19 will detect that there is no water, and the indicator light 20 will turn red, indicating that venting is in progress. When water pump 4 has finished venting, the vent pipe 17 is full of water, the level sensor 19 will detect that the vent pipe 17 is full of water, and the indicator light 20 will turn green. The installation and commissioning personnel can determine whether water pump 4 has finished venting by observing the color of the indicator light 20. At the same time, since the level sensor 19 will output two states to the control cabinet 3 when the water is full and when it is not full, the control cabinet 3 can determine whether the air in water pump 4 has been expelled by these two states. The installer can make a comprehensive judgment by using the intelligent venting device 7 of the intelligent water collector 1 and the automatic venting device of water pump 4. The prerequisite for water pump 4 to start is that the intelligent venting device 7 of the intelligent water collector 1 and the automatic venting device of water pump 4 can only be started when both of them have completed venting. This ensures that there is no air in the equipment during operation, improves the stability of system operation, and extends the service life of water pump 4.

[0075] The water pump of this invention uses an automatic air vent valve 18 for air venting, which is simple and convenient compared to the existing manual air vent valve.

[0076] Structure of automatic vent valve 18: The automatic vent valve 18 includes a housing, on which a vent hole is provided, and inside the housing is a ball that can close the vent hole under the buoyancy of water.

[0077] Preferably, the liquid level sensor 19 is a photoelectric liquid level sensor, and the first flow meter 6 and the second flow meter 13 are electromagnetic flow meters.

[0078] This invention eliminates the flow stabilizer, reducing the footprint and manufacturing cost. It can be used not only in areas with sufficient municipal pipeline pressure but also in areas with slightly lower municipal pipeline pressure. In some scenarios, it can even replace the water tank, making its application more flexible.

[0079] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A smart tankless booster pump water supply system, characterized in that: The system includes an intelligent water collector (1), a first pressure sensor (2) for detecting the water pressure of the municipal water network, and a control cabinet (3). The inlet of the intelligent water collector (1) is connected to the municipal water network, and the outlet is connected to the inlet of a water pump (4). The outlet of the water pump (4) is connected to the main outlet pipe (5), which is connected to the user's water network. A first flow meter (6) for detecting the flow rate of the water outlet pipe (5) is installed on the main outlet pipe (5). The intelligent water collector (1) is equipped with an intelligent venting device (7). The intelligent venting device (7) includes components installed on the intelligent water collector. The water collector (1) has a housing (7a) and a mounting cover (7b) located above the housing (7a). The mounting cover (7b) contains a micro switch (8). The housing (7a) contains a float (7c) and a sealing gasket (7d). The sealing gasket (7d) has an air outlet channel (7e) connecting the inner cavity of the housing (7a) and the inner cavity of the mounting cover (7b). The float (7c) has an actuating rod (7f) that passes through the air outlet channel (7e) and enters the inner cavity of the mounting cover (7b). The first pressure sensor (2), the first flow meter (6), and the micro switch... Switches (8) are electrically connected to the control cabinet (3). When the intelligent water collector (1) is full of water, the float (7c) rises under the buoyancy of the water to seal the air outlet channel (7e), and the actuator (7f) triggers the micro switch (8). The micro switch (8) transmits a signal to the control cabinet (3). When the water level in the intelligent water collector (1) drops to the point where the actuator (7f) leaves the micro switch (8), the micro switch (8) transmits a signal to the control cabinet (3), and the control cabinet (3) controls the water pump (4) to stop running and records the value of the first pressure sensor (2) at this moment. The value of the first flow meter (6); when the number of sets of the values ​​of the first pressure sensor (2) and the first flow meter (6) recorded by the control cabinet (3) reaches the set number, multiple sets of the values ​​of the first pressure sensor (2) and the first flow meter (6) form a curve with the value of the first pressure sensor (2) as the X-axis and the value of the first flow meter (6) as the Y-axis; when the point corresponding to the value of the first pressure sensor (2) and the value of the first flow meter (6) is on or above the curve of the curve, the control cabinet (3) controls the water pump (4) to stop running.

2. The intelligent tankless booster water supply equipment according to claim 1, characterized in that: The end of the main outlet pipe (5) furthest from the user's pipe network is connected to a pressure tank (9), which is equipped with a pressure gauge (10). The main outlet pipe (5) is equipped with a second pressure sensor (11) to detect the water pressure of the main outlet pipe (5). The inlet of the intelligent water collector (1) is connected to the municipal pipe network through an inlet pipe (12), which is equipped with a second flow meter (13) to detect the inlet flow rate. The pressure gauge (10), the second pressure sensor (11), and the second flow meter (13) are respectively connected to the control cabinet. (3) Electrical connection: When the water pump (4) is running, the value of the pressure gauge (10) is equal to the value of the second pressure sensor (11), and the value of the second flow meter (13) is greater than the value of the first flow meter (6), the control cabinet (3) indicates that there is a water leak; when the water pump (4) is stopped, the value of the pressure gauge (10) is equal to the value of the second pressure sensor (11), the value of the second flow meter (13) is greater than 0, and the value of the first flow meter (6) is 0, the control cabinet (3) indicates that there is a water leak at the inlet end of the water pump (4).

3. The intelligent tankless booster water supply equipment according to claim 2, characterized in that: Below the pressure tank (9) is a weighing sensor (14) for detecting the weight of the pressure tank (9). The weighing sensor (14) is electrically connected to the control cabinet (3). When the water supply equipment is installed and debugged for the first time and the water pump (4) is in a stopped state, the control cabinet (3) records the value of the weighing sensor (14), which is the initial weight of the pressure tank (9). In subsequent use, when the water pump (4) is in a stopped state and the difference between the value of the weighing sensor (14) and the initial weight of the pressure tank (9) is greater than the set value, the control cabinet (3) prompts that the pressure tank (9) is leaking air.

4. The intelligent tankless booster water supply equipment according to claim 3, characterized in that: The control cabinet (3) is equipped with an Internet of Things (IoT) box. When the water supply equipment leaks water and / or gas, the control cabinet (3) remotely notifies after-sales personnel to check the situation on-site through the IoT box.

5. The intelligent tankless booster water supply equipment according to claim 1, characterized in that: The housing (7a) is provided with a base (7g), and the sealing gasket (7d) is provided below the base (7g). The base (7g) is provided with an air outlet (7h) that connects the inner cavity of the mounting cover (7b) and the air outlet channel (7e). The upper end of the actuating rod (7f) is slidably disposed in the base (7g). The mounting cover (7b) is a hollow cylindrical structure. The lower end of the mounting cover (7b) is fitted onto the housing (7a). The lower end face (7i) of the mounting cover (7b) is provided with multiple small exhaust holes (7j).

6. The intelligent tankless booster water supply equipment according to claim 5, characterized in that: The mounting cover (7b) is provided with a signal indicator light (15) that is electrically connected to the control cabinet (3), and the lower end face (7i) is provided with a filter screen (7k).

7. The intelligent tankless booster water supply equipment according to claim 1, characterized in that: The top of the intelligent water collector (1) is provided with multiple through holes (16) that connect the inner cavity of the intelligent water collector (1) and the inner cavity of the shell (7a).

8. The intelligent tankless booster water supply equipment according to claim 1, characterized in that: The water pump (4) is equipped with an automatic exhaust device at its exhaust port. The automatic exhaust device includes an exhaust pipe (17) with its bottom end connected to the exhaust port of the water pump (4), an automatic exhaust valve (18) set at the top of the exhaust pipe (17), a liquid level sensor (19) set on the exhaust pipe (17) and located below the automatic exhaust valve (18), and a signal indicator light (20) set at the outer end of the liquid level sensor (19). The liquid level sensor (19) is electrically connected to the control cabinet (3).

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