Water purifier adopting PCR (Polymerase Chain Reaction) composite filter element
By introducing pure water tanks and return pipelines into the water purifier and controlling secondary filtration using liquid level and TDS sensors, the problem of poor water quality in existing water purifiers when treating water sources with poor water quality is solved, achieving more efficient water quality filtration and reducing the burden on the filter element.
Patent Information
- Application Number
- CN202421090240.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-20
AI Technical Summary
When existing water purifiers treat water sources with poor water quality, the pure water filtered through the PCR composite filter may not achieve satisfactory effluent water quality, and the composite filter is overloaded.
A water purifier using PCR composite filter element was designed, equipped with a pure water tank and a return pipeline. The return flow is controlled through a liquid level sensor and a TDS sensor to realize secondary filtration, improve water quality and reduce the burden on the filter element.
Through secondary filtration, the water quality output of the water purifier is improved, the quality of the effluent is ensured, and the burden of using the PCR composite filter element is reduced.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water purification equipment, in particular to a water purifier adopting a PCR composite filter element. Background Art
[0002] As people's lives are getting better and better, water quality problems are becoming more and more serious, seriously threatening the physical and mental health of the people. Water needs to be purified according to the characteristics of water pollution. The current purification technologies on the market are generally divided into the following points: 1) Removal of organic matter in water sources. The methods currently used to remove or reduce organic pollutants in water sources include chemical oxidation, mainly ozone oxidation, hydrogen peroxide oxidation, potassium permanganate oxidation, photocatalytic oxidation and their combined processes; 2) Physical adsorption, including granular activated carbon adsorption (GAC) and powdered activated carbon adsorption (PAC); 3) Biological oxidation, such as biological contact oxidation, aerobic biological filter, biological rotary disc, biological fluidized bed and biological ceramsite technology; enhanced coagulation, such as changing the pH value of water, Increase the dosage of coagulant, or reasonably add new organic and inorganic polymer coagulants, etc., to improve the coagulation conditions and enhance the removal effect of organic matter; 4) Membrane filtration technology, such as microfiltration and nanofiltration, ultrafiltration UF, reverse osmosis RO technology, etc.; According to the characteristics of the water source and the requirements for the water quality of the outlet, sometimes several technologies need to be combined to ensure the safety of drinking water. The filter element of the water purifier is its core component. It removes impurities and bacteria in the water through physical methods such as filtration and adsorption, turning tap water into purified water without causing secondary pollution.
[0003] The PCR composite filter element is composed of PP cotton, activated carbon and post-RO membrane, that is, three different filter materials are contained in the same filter element, which can be used for different filtering purposes. Its specific structure can be found in another prior application CN111661944A of the applicant. The water purifier using the PCR composite filter element needs to make corresponding changes in the overall machine layout and waterway design. Summary of the invention
[0004] The purpose of the utility model is to meet this demand and provide a water purifier using a PCR composite filter element.
[0005] The technical solution of the utility model is as follows: a water purifier using a PCR composite filter element, comprising a booster pump, a PCR composite filter element and a pure water tank. The pure water produced by the PCR composite filter element can be directly provided to the user, or stored in the pure water tank before being provided to the user; it is characterized in that: the pure water tank is provided with a reflux pipeline to return the pure water in the pure water tank to the front of the booster pump; there are two water paths between the pure water tank and the water outlet faucet, which are respectively controlled by a first water pump and a second water pump, wherein the second water pump with a smaller flow rate flows through the instant heating module of the water outlet faucet and then discharges water.
[0006] Furthermore, a liquid level sensor and a TDS sensor are provided in the pure water tank, and a displacement actuator is provided on the return pipeline of the pure water tank, which determines the on-off of the return pipeline according to the change of the liquid level in the pure water tank and the TDS value data.
[0007] Since the amount of each filter material in the composite filter element is small, the removal rate of impurities, ions, etc. in the water is relatively low. In the case of poor raw water quality, the filtered pure water may still not reach a satisfactory outlet water quality. Therefore, through the return of the pure water tank, it is subjected to secondary filtration, which improves the water quality on the one hand and reduces the burden of the composite filter element on the other hand. The replacement actuator can determine whether the pure water in the pure water tank has been stored for a long time based on the liquid level change and TDS data. If so, it will be returned to the front of the pump for secondary filtration first, so as to ensure the quality of the pure water in the pure water tank. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural schematic diagram of the utility model.
[0009] Figure 2 It is a waterway diagram of the utility model. DETAILED DESCRIPTION
[0010] See the attached drawings. This embodiment includes a booster pump 1, a PCR composite filter element 2, a pure water tank 3, a faucet 4, a first water pump 5 and a second water pump 6. The filter element and the water pump are connected to the water circuit board. The water circuit board has three water inlets and outlets, namely, a raw water inlet 71, a pure water outlet 72 and a waste water outlet 73. The raw water enters the composite filter element 2 after being pressurized by the booster pump. The pure water obtained can be directly discharged through the faucet 4 or temporarily stored in the pure water tank 3; the pure water tank has a reflux pipeline, which is controlled by the displacement actuator 8 and refluxes to the front of the booster pump 1; the pure water tank has two water outlets provided to the faucet 4, which are respectively controlled by the larger first water pump 5 and the smaller second water pump 6, and the faucet 4 is equipped with an instant heating module. The water outlet of the second water pump 6 is heated by the instant heating module before being discharged.
[0011] When the user needs hot water, the second water pump 6 draws pure water from the pure water tank, heats it and provides it to the user; when the user needs normal temperature water, the composite filter element 2 produces water and provides it directly to the user; when the user needs a large flow of normal temperature water, the first water pump 5 draws pure water from the pure water tank and provides it to the user.
Claims
1. A water purifier using a PCR composite filter element, comprising a booster pump, a PCR composite filter element and a pure water tank. The pure water produced by the PCR composite filter element can be directly provided to the user, or first stored in the pure water tank and then provided to the user; characterized in that: The pure water tank is provided with a reflux pipeline to return the pure water in the pure water tank to the front of the booster pump; there are two water paths between the pure water tank and the water outlet faucet, which are respectively controlled by the first water pump and the second water pump, among which the second water pump with a smaller flow rate flows through the instant heating module of the water outlet faucet and then discharges water.
2. A water purifier using a PCR composite filter element as claimed in claim 1, characterized in that: A liquid level sensor and a TDS sensor are installed in the pure water tank, and a displacement actuator is installed on the return pipe of the pure water tank. The on-off of the return pipe is determined according to the liquid level change in the pure water tank and the TDS value data.