High-level distributed multi-water tank water purification circulating system

Abstract

The utility model discloses a kind of high-rise distributed multi-water tank water purification circulation systems, water inlet, first solenoid valve, frequency conversion pump, pressure tank, pretreatment system, membrane filtration system, ultraviolet sterilization device, large water tank are sequentially communicated in the equipment main body, still include PLC controller.The utility model's technical scheme is through distributed layout and intelligent design, secondary pollution risk is reduced using circulation system, again by setting multiple small water tank, shorten water supply path, solve the problem of water pressure shortage in high-rise building in water peak period, simultaneously by frequency conversion pump and pressure tank, water pump is flexibly regulated according to water consumption, dynamically regulate water pressure, reduce energy consumption, to reduce operation and maintenance cost, comprehensively improve water supply safety, stability and economy.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to a high-rise distributed multi-tank water purification and circulation system. Background Technology

[0002] With the acceleration of urbanization, high-rise buildings are becoming increasingly common. Traditionally, high-rise buildings rely on centralized water tanks for water supply; however, this model presents numerous problems in actual operation. Firstly, centralized water tanks are typically located on the building's roof or in an underground machine room, resulting in long supply routes and significant fluctuations in pipeline pressure. This often leads to insufficient water pressure and unstable water flow, especially during peak water usage periods. Furthermore, water left stagnant for extended periods is prone to microbial growth and sediment buildup on the tank's inner walls, increasing the risk of secondary water pollution and failing to meet residents' high demands for safe drinking water. Summary of the Invention

[0003] This invention aims to overcome the shortcomings of existing technologies by proposing a high-rise distributed multi-tank water purification and circulation system, which solves the problems of unstable water pressure and easy bacterial growth in water tanks in high-rise buildings.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is a high-rise distributed multi-tank water purification and circulation system, characterized in that: the main body of the equipment is provided with sequentially connected inlet, first solenoid valve, variable frequency pump, pressure stabilizing tank, pretreatment system, membrane filtration system, ultraviolet sterilization device, large water tank, and also includes a PLC controller. The outlet of the large water tank is connected to the inlet of multiple small water tanks through a flow meter, circulation pump, and second solenoid valve. One outlet of each small water tank is connected to the user's outlet, and another outlet returns water to the membrane filtration system through a return water pipeline.

[0005] Furthermore, a liquid level sensor 1 is installed on the upper part of the inner wall of the small water tank, and a liquid level sensor 2 is installed on the lower part.

[0006] Furthermore, a pressure-reducing valve is installed on the upper part of the large water tank.

[0007] Furthermore, the variable frequency pump, flow meter, circulating pump, first solenoid valve, and second solenoid valve are all electrically connected to the PLC controller.

[0008] Furthermore, the pretreatment system is equipped with a quartz sand filter, an activated carbon filter, and a precision filter connected in sequence, wherein the precision filter is a PP cotton filter.

[0009] Furthermore, the membrane filtration system is a combination unit of reverse osmosis membranes or nanofiltration membranes connected in series or in parallel.

[0010] The beneficial effects of this utility model are:

[0011] The technical solution of this utility model reduces the risk of secondary pollution through distributed layout and intelligent design, utilizes a circulation system to reduce the risk of secondary pollution, and shortens the water supply path by setting up multiple small water tanks to solve the problem of insufficient water pressure in high-rise buildings during peak water usage periods. At the same time, it uses variable frequency pumps and pressure stabilizing tanks to flexibly adjust the water pumps according to water consumption, dynamically regulate water pressure, reduce energy consumption, thereby reducing operation and maintenance costs and comprehensively improving the safety, stability and economy of water supply. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] The components include: 1. Water inlet; 2. First solenoid valve; 3. Variable frequency pump; 4. Pressure stabilizing tank; 5. Pretreatment system; 6. Membrane filtration system; 7. Ultraviolet sterilization device; 8. Check valve; 9. Large water tank; 10. Pressure reducing valve; 11. Flow meter; 12. Circulation pump; 13. Second solenoid valve; 14. Water inlet solenoid valve; 15. Level sensor one; 16. Level sensor two; 17. Small water tank; 18. User water outlet; 19. Return water pipeline; 20. PLC controller. Detailed Implementation

[0014] The embodiments of this utility model will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of this utility model in a schematic manner, and therefore only show the components relevant to this utility model. Example

[0015] Reference Figure 1 This embodiment provides a high-rise distributed multi-tank water purification and circulation system. The main body of the equipment is provided with sequentially connected inlet 1, first solenoid valve 2, variable frequency pump 3, pressure stabilizing tank 4, pretreatment system 5, membrane filtration system 6, ultraviolet sterilization device 7, large water tank 9, and also includes PLC controller 20. The outlet of the large water tank 9 is connected to the inlet of multiple small water tanks 17 through flow meter 11, circulation pump 12, and second solenoid valve 13. One outlet of each small water tank 17 is connected to the user outlet 18, and another outlet returns water to the membrane filtration system 6 through return water pipeline 19. The pretreatment system 5 is equipped with a quartz sand filter, an activated carbon filter, and a precision filter connected in sequence. The precision filter is a PP cotton filter. The membrane filtration system 6 is a combination unit of reverse osmosis membranes or nanofiltration membranes connected in series or in parallel. The upper part of the inner wall of the small water tank 17 is equipped with a liquid level sensor 15, and the lower part is equipped with a liquid level sensor 26. The upper part of the large water tank 9 is equipped with a pressure reducing valve 10. The variable frequency pump 3, flow meter 11, circulation pump 12, first solenoid valve 2, second solenoid valve 13, and inlet solenoid valve 14 are all electrically connected to the PLC controller 20.

[0016] The specific explanation is as follows:

[0017] This utility model provides a high-rise distributed multi-tank water purification and circulation system. In operation, municipal tap water enters from inlet 1, sequentially passing through inlet solenoid valve 2, variable frequency pump 3, and pressure stabilizing tank 4 into pretreatment system 5 to remove suspended solids, organic matter, residual chlorine, etc. It then enters membrane filtration system 6 to filter out bacteria, viruses, heavy metals, and other harmful substances such as organic matter. Finally, after sterilization by ultraviolet sterilization device 7, it enters large water tank 9. When large water tank 9 supplies water to multiple small water tanks 17, it passes through flow meter 11, circulation pump 12, and second solenoid valve 13. At this time, flow meter 11 displays the flow rate, and circulation pump 12 is not activated. When the small water tanks 17 are full, reaching the level line of level sensor 15, level sensor 15 sends an electrical signal to PLC controller 20. PLC controller 20 closes the inlet solenoid valve 14 at the top of small water tanks 17, allowing water to be delivered to users in higher floors via small water tanks 17. When the water in small water tanks 17 is insufficient... When the water level falls below the level line of level sensor 16, level sensor 16 sends an electrical signal to PLC controller 20. PLC controller 20 opens the inlet solenoid valve 14 and the second solenoid valve 13 on the upper part of the small water tank 17, sending water from the large water tank 9 to the small water tank 17 until it is full and reaches the level line of level sensor 15. Level sensor 15 then sends an electrical signal to PLC controller 20, and PLC controller 20 closes the inlet solenoid valve 14 on the upper part of the small water tank 17. This cycle repeats continuously.

[0018] To prevent the water in the small water tanks 17 from remaining stagnant for extended periods and breeding microorganisms, the system can periodically activate a circulation mode. When users are not using water and the large water tank 9 is not supplying water to the small water tanks 17 (i.e., the flow meter 11 does not display flow), the PLC controller 20 activates the circulation pump 12, opening the second solenoid valve 13 and the inlet solenoid valves 14 on the upper part of the multiple small water tanks 17. This allows the water in the small water tanks 17 to return to the membrane filtration system 6 via the return water pipe 19, ensuring water flow within the small water tanks 17. It should be noted that the number of small water tanks 17 is determined based on the building height and is not limited to the number shown in the diagram.

[0019] In addition to the above embodiments, the present invention may have other implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by the present invention.

Claims

1. A high-rise distributed multi-tank water purification and circulation system, characterized in that: The main body of the equipment is equipped with a sequentially connected water inlet, a first solenoid valve, a frequency converter pump, a pressure stabilizing tank, a pretreatment system, a membrane filtration system, an ultraviolet sterilization device, a large water tank, and a PLC controller. The outlet of the large water tank is connected to the inlets of multiple small water tanks through a flow meter, a circulation pump, and a second solenoid valve. One outlet of each small water tank is connected to the user's water outlet, and another outlet returns water to the membrane filtration system through a return water pipeline.

2. The high-rise distributed multi-tank water purification and circulation system according to claim 1, characterized in that: Each of the small water tanks is equipped with a liquid level sensor 1 on the upper part and a liquid level sensor 2 on the lower part of the inner wall.

3. The high-rise distributed multi-tank water purification and circulation system according to claim 1, characterized in that: A pressure reducing valve is installed on the upper part of the large water tank.

4. The high-rise distributed multi-tank water purification and circulation system according to claim 1, characterized in that: The variable frequency pump, flow meter, circulating pump, first solenoid valve, and second solenoid valve are all electrically connected to the PLC controller.

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