Modular central water purification plant with automatic washing

Abstract

The utility model discloses a modularization central water purification equipment of automatic flushing can, in the equipment main part is provided with the water inlet, water inlet tank, water inlet pump, quartz sand filter module, activated carbon filter module, reverse osmosis membrane filter module, water purification tank, water supply system that communicate in proper order, still includes PLC controller. The utility model discloses a technical scheme breaks the integrated type or series connection type design of traditional water purification equipment, and the central water purification equipment is divided into three modules, and through water quality monitor accurate positioning to the module of water quality not reaching the standard, and only to the directional flushing of this problem module, avoid unnecessary flushing to the module of not happening pollution or performance still normal. This on-demand maintenance strategy can minimize resource consumption, improve system operation efficiency and economy, and is an important development direction of modern energy-saving and environment-friendly water purification equipment.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to a modular central water purification device with automatic flushing capability. Background Technology

[0002] Traditional water purification equipment typically employs an integrated or series design. When the water quality at the end of the system fails to meet standards, regardless of whether the problem originates from a specific module such as pretreatment, reverse osmosis, or post-sterilization, the entire system undergoes a complete cleaning. While this "one-size-fits-all" maintenance approach can restore the equipment's purification capacity, it presents several problems: Firstly, frequent and indiscriminate overall flushing consumes a significant amount of water, especially in water-scarce areas where this waste is even more pronounced. Secondly, overall flushing accelerates the wear and tear on other normally functioning modules, shortening their lifespan, while also increasing the equipment's energy consumption and time costs. Summary of the Invention

[0003] The present invention aims to overcome the shortcomings of the existing technology by proposing a modular central water purification device with automatic flushing. The device is divided into three modules, and the water quality monitor can accurately locate the module with substandard water quality and flush only the problematic module.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a modular central water purification device with automatic flushing capability, characterized in that the water purification device includes a main body, and within the main body are arranged sequentially a water inlet, a water tank, a water pump, a quartz sand filter module, an activated carbon filter module, a reverse osmosis membrane filter module, a purified water tank, and a water supply system, and also includes a PLC controller.

[0005] Furthermore, the quartz sand filter module includes a quartz sand filter, a first cleaner, a first outlet valve, a first booster pump, a first water quality detector, and a first three-way valve. The outlet of the first cleaner is connected to the outlet of the quartz sand filter through the first outlet valve and the first booster pump. The inlet of the quartz sand filter is connected to the inlet of the first cleaner through the first three-way valve. A first water quality detector is installed on the pipeline connecting the quartz sand filter module and the activated carbon filter module.

[0006] Furthermore, the activated carbon filter module includes an activated carbon filter, a second cleaner, a second outlet valve, a second booster pump, a second water quality detector, and a second three-way valve. The outlet of the second cleaner is connected to the outlet of the activated carbon filter through the second outlet valve and the second booster pump. The inlet of the activated carbon filter is connected to the inlet of the second cleaner through the second three-way valve. A second water quality detector is installed on the pipeline connecting the activated carbon filter module and the reverse osmosis membrane filter module.

[0007] Furthermore, the reverse osmosis membrane filter module includes a reverse osmosis membrane filter, a third cleaner, a third outlet valve, a third booster pump, a third water quality detector, and a third three-way valve. The outlet of the third cleaner is connected to the inlet of the reverse osmosis membrane filter through the third outlet valve and the third booster pump. The outlet of the reverse osmosis membrane filter is connected to the inlet of the third cleaner. A third water quality detector is installed on the pipeline connecting the reverse osmosis membrane filter module to the purified water tank.

[0008] The beneficial effects of this utility model are:

[0009] This invention breaks away from the traditional integrated or series-connected design of water purification equipment. It divides the central water purification system into three modules, using a water quality monitor to precisely locate the module with substandard water quality and perform targeted flushing only on that problematic module. This avoids unnecessary flushing of modules that are not contaminated or are still functioning normally. This on-demand maintenance strategy minimizes resource consumption and improves system operating efficiency and economy, representing an important development direction for modern energy-saving and environmentally friendly water purification equipment. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] The system comprises: 1. Water inlet; 2. Water inlet solenoid valve; 3. Water inlet tank; 4. Water inlet pump; 5. Quartz sand filter; 5-1. First three-way valve; 5-2. First water quality monitor; 5-3. First cleaner; 5-4. First outlet valve; 5-5. First booster pump; 6. Activated carbon filter; 6-1. Second three-way valve; 6-2. Second water quality monitor; 6-3. Second cleaner; 6-4. Second outlet valve; 6-5. Second booster pump; 7. Reverse osmosis membrane filter; 7-1. Third three-way valve; 7-2. Third water quality monitor; 7-3. Third cleaner; 7-4. Third outlet valve; 7-5. Third booster pump; 8. Clean water tank; 9. Water supply system; 10. PLC controller. Detailed Implementation

[0012] 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

[0013] Reference Figure 1This embodiment provides a modular central water purification device with automatic flushing capability. The water purification device includes a main body, within which are arranged sequentially connected water inlet 1, water inlet tank 3, water inlet pump 4, quartz sand filter module, activated carbon filter module, reverse osmosis membrane filter module, purified water tank 8, and water supply system 9. It also includes a PLC controller 10.

[0014] The quartz sand filter module includes a quartz sand filter 5, a first cleaner 5-3, a first outlet valve 5-4, a first booster pump 5-5, a first water quality monitor 5-2, and a first three-way valve 5-1. The outlet of the first cleaner 5-3 is connected to the outlet of the quartz sand filter 5 through the first outlet valve 5-4 and the first booster pump 5-5. The inlet of the quartz sand filter 5 is connected to the inlet of the first cleaner 5-3 through the first three-way valve 5-1. A first water quality monitor 5-2 is installed on the pipeline connecting the quartz sand filter module and the activated carbon filter module. The activated carbon filter module includes an activated carbon filter 6, a second cleaner 6-3, a second outlet valve 6-4, a second booster pump 6-5, a second water quality monitor 6-2, and a second three-way valve 6-1. The outlet of the second cleaner 6-3 is connected to the outlet of the first cleaner 5-3 through the first outlet valve 5-4 and the first booster pump 5-5. 4. The second booster pump 6-5 is connected to the outlet of the activated carbon filter 6. The inlet of the activated carbon filter 6 is connected to the inlet of the second cleaner 6-3 through the second three-way valve 6-1. A second water quality monitor 6-2 is installed on the pipeline connecting the activated carbon filter module and the reverse osmosis membrane filter module. The reverse osmosis membrane filter module includes a reverse osmosis membrane filter 7, a third cleaner 7-3, a third outlet valve 7-4, a third booster pump 7-5, a third water quality monitor 7-2, and a third three-way valve 7-1. The outlet of the third cleaner 7-3 is connected to the inlet of the reverse osmosis membrane filter 7 through the third outlet valve 7-4 and the third booster pump 7-5. The outlet of the reverse osmosis membrane filter 7 is connected to the inlet of the third cleaner 7-3. A third water quality monitor 7-2 is installed on the pipeline connecting the reverse osmosis membrane filter module and the purified water tank.

[0015] The specific explanation is as follows:

[0016] The modular central water purification equipment with automatic flushing provided by this utility model allows municipal tap water to enter the inlet tank 3 through the inlet solenoid valve 3 from the inlet 1. It then passes through the inlet pump 4 and the first three-way valve 5-1 before being fed into the quartz sand filter 5. The quartz sand removes suspended solids from the water. The filtered water then passes through the first water quality monitor 5-2 and the second three-way valve 6-1 before entering the activated carbon filter 6. The activated carbon removes organic matter and residual chlorine through adsorption. The adsorbed water then passes through the second water quality monitor 6-2 and the third three-way valve 7-1 before entering the reverse osmosis membrane filter 7. This filter removes bacteria, viruses, heavy metals, and other harmful substances such as organic matter. The filtered purified water then passes through the third water quality monitor 7-2 before entering the purified water tank 8, and finally is supplied to users via the water supply system 9.

[0017] When the data detected by the first water quality monitor 5-2 exceeds the set threshold, the data will be transmitted to the PLC controller 10 in a timely manner. The PLC controller 10 closes the valve of the first three-way valve 5-1 near the water inlet pump 4 and the valve of the second three-way valve 6-1 near the activated carbon filter 6. At this time, the quartz sand filter 5, the first three-way valve 5-1, the first cleaner 5-3, the first outlet valve 5-4, and the first booster pump 5-5 form a cleaning circuit. The upper layer of the first cleaner 5-3 is a clear water tank, and the lower layer is a wastewater tank. The PLC controller 10 opens the first outlet valve 5-4 and the first booster pump 5-5. The water in the clear water tank flows in the opposite direction through the first outlet valve 5-4 and the first booster pump 5-5 into the quartz sand filter 5. The wastewater flows back to the lower layer of the first cleaner 5-3 through the first three-way valve 5-1. After this process lasts for 10 minutes, the PLC controller 10 automatically closes the first outlet valve 5-4, the first booster pump 5-5, and the valve of the first three-way valve 5-1 near the end of the first cleaner 5-3. It then opens the valve of the first three-way valve 5-1 near the end of the inlet pump 4 and the valve of the second three-way valve 6-1 near the end of the activated carbon filter 6. The quartz sand filter module resumes normal operation.

[0018] When the data detected by the second water quality monitor 6-2 exceeds the set threshold, the data will be transmitted to the PLC controller 10 in a timely manner. The PLC controller 10 closes the valve of the second three-way valve 6-1 near the first water quality monitor 5-2 and the valve of the third three-way valve 7-1 near the reverse osmosis membrane filter 7. At this time, the activated carbon filter 6, the second three-way valve 6-1, the second cleaner 6-3, the second outlet valve 6-4, and the second booster pump 6-5 form a cleaning circuit. The upper layer of the second cleaner 6-3 is a clear water tank, and the lower layer is a wastewater tank. The PLC controller 10 opens the second outlet valve 6-4 and the second booster pump 6-5. The water from the clear water tank flows in the reverse direction along the second outlet valve 6-4 and the second booster pump 6-5 into the activated carbon filter 6. The wastewater flows back to the lower layer of the second cleaner 6-3 along the second three-way valve 6-1. After this process lasts for 15 minutes, the PLC controller 10 automatically closes the second outlet valve 6-4, the second booster pump 6-5, and the valve of the second three-way valve 6-1 near the end of the second cleaner 6-3. It then opens the valve of the second three-way valve 6-1 near the end of the first water quality monitor 5-2 and the valve of the third three-way valve 7-1 near the end of the reverse osmosis membrane filter 7. The activated carbon filter module resumes normal operation.

[0019] When the data detected by the third water quality monitor 7-2 exceeds the set threshold, the data will be transmitted to the PLC controller 10 in a timely manner. The PLC controller 10 closes the valve of the third three-way valve 7-1 near the second water quality monitor 6-2. At this time, the reverse osmosis membrane filter 7, the third cleaner 7-3, the third outlet valve 7-4, the third booster pump 7-5, and the third three-way valve 7-1 form a cleaning circuit. The upper layer of the third cleaner 7-3 is a clear water tank, and the lower layer is a wastewater tank. The PLC controller 10 opens the third outlet valve 7-4 and the third booster pump 7-5. The water from the clear water tank enters the reverse osmosis membrane filter 7 in the forward direction through the third outlet valve 7-4 and the third booster pump 7-5. The wastewater returns to the lower layer of the third cleaner 7-3 through the check valve. After this process lasts for 10 minutes, the PLC controller 10 automatically closes the third outlet valve 7-4, the third booster pump 7-5, and the valve of the third three-way valve 7-1 near the third booster pump 7-5. It then opens the valve of the third three-way valve 7-1 near the second water quality monitor 6-2, and the reverse osmosis membrane filter module resumes normal operation.

[0020] In addition to the above embodiments, this utility model may have other implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A modular central water purification system with automatic flushing capability, characterized in that: The water purification equipment includes a main body, within which are sequentially connected components such as an inlet, an inlet tank, an inlet pump, a quartz sand filter module, an activated carbon filter module, a reverse osmosis membrane filter module, a purified water tank, and a water supply system, as well as a PLC controller.

2. The modular central water purification system with automatic flushing capability according to claim 1, characterized in that: The quartz sand filter module includes a quartz sand filter, a first cleaner, a first outlet valve, a first booster pump, a first water quality monitor, and a first three-way valve. The outlet of the first cleaner is connected to the outlet of the quartz sand filter through the first outlet valve and the first booster pump. The inlet of the quartz sand filter is connected to the inlet of the first cleaner through the first three-way valve. A first water quality monitor is installed on the pipeline connecting the quartz sand filter module and the activated carbon filter module.

3. The modular central water purification equipment with automatic flushing capability according to claim 1, characterized in that: The activated carbon filter module includes an activated carbon filter, a second cleaner, a second outlet valve, a second booster pump, a second water quality monitor, and a second three-way valve. The outlet of the second cleaner is connected to the outlet of the activated carbon filter through the second outlet valve and the second booster pump. The inlet of the activated carbon filter is connected to the inlet of the second cleaner through the second three-way valve. A second water quality monitor is installed on the pipeline connecting the activated carbon filter module and the reverse osmosis membrane filter module.

4. The modular central water purification equipment with automatic flushing capability according to claim 1, characterized in that: The reverse osmosis membrane filter module includes a reverse osmosis membrane filter, a third cleaner, a third outlet valve, a third booster pump, a third water quality monitor, and a third three-way valve. The outlet of the third cleaner is connected to the inlet of the reverse osmosis membrane filter through the third outlet valve and the third booster pump. The outlet of the reverse osmosis membrane filter is connected to the inlet of the third cleaner. A third water quality monitor is installed on the pipeline connecting the reverse osmosis membrane filter module to the purified water tank.

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