Pure water backflow system for water purifier

Abstract

The utility model relates to the technical field of water purifiers, in particular to a pure water backflow system for a water purifier, which comprises a water purifier, a detection component for detecting water quality is arranged in the water purifier, the detection component comprises a clear water tank arranged outside the water purifier, a main pipe is arranged at the output end of the clear water tank, and a water outlet is arranged at the output end of the main pipe. A booster pump, a first filter element, a second filter element, a detector and a non-return switch are sequentially arranged outside the main pipe, a water purification tank is arranged at the other end of the main pipe, and a return pipe is arranged on the main pipe between the non-return switch and the detector. According to the utility model, the water quality of filtered water is detected, when the water quality is unqualified, backflow is controlled to filter again, and the water is discharged after being filtered for multiple times until the water quality is qualified, so that the water purification effect of the water purifier is improved, and the water quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, in particular to a pure water reflux system for water purifiers. Background Art

[0002] A water purifier is a device used to improve the taste and hygiene of water. It removes harmful substances, bacteria, viruses, etc. from water through filtration, disinfection, adsorption and other methods, making the water safer, cleaner and healthier.

[0003] However, in the current existing technology, after the water purifier is shut down, due to osmosis, the high-concentration concentrated water will gradually penetrate into the low-concentration pure water end. The first cup of water discharged from the water purifier will have a higher salinity and a significant increase, resulting in poor water quality when the water purifier is turned on. Therefore, this part of the water will be refluxed through the reflux pipeline and then filtered. In this process, the refluxed water will mix with the water in the water tank, causing the substances in the reflux water to mix with it, causing pollution to the water in the water tank, thereby reducing the water quality and increasing the filtration burden. Utility Model Content

[0004] The purpose of the utility model is to provide a pure water reflux system for a water purifier to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pure water reflux system for a water purifier comprises a water purifier, wherein a detection component for detecting water quality is arranged inside the water purifier, wherein the detection component comprises a clean water tank arranged outside the water purifier, wherein a main pipe is arranged at an output end of the clean water tank, wherein a booster pump, a first filter element, a second filter element, a detector and a check switch are arranged outside the main pipe in sequence, wherein a clean water tank is arranged at the other end of the main pipe, and a reflux pipe is arranged on the main pipe between the check switch and the detector.

[0007] As a preferred solution of the utility model, the output end of the clean water tank is connected to the main pipe through a sleeve, and the main pipe passes through the booster pump, the first filter element and the second filter element to allow the clean water to flow and filter in the filter element.

[0008] As a preferred solution of the utility model, the detector and the check switch are both connected to the main pipe through a sleeve, and the other end of the main pipe is connected to the water injection end of the water purification tank.

[0009] As a preferred solution of the utility model, solenoid valves are provided at both ends of the reflux pipe, one end of the reflux pipe is connected to the main pipe of the check switch and the detector, and the other end extends to the main pipe between the booster pump and the water purifier.

[0010] Compared with the prior art, the beneficial effects of the utility model are: in response to the problems raised in the background technology, the present application adopts a detection component, which filters the clean water by passing it through an activated carbon filter element and an RO reverse osmosis filter element, and after filtration, passes the water through a TDS detector for water quality detection. When the water quality test is unqualified, it is transported back to the main pipeline through a reflux pipe, and is filtered twice until the water quality is qualified. When the water quality reaches the detection standard, it can be discharged from the water purification tank for drinking.

[0011] The utility model can detect the water quality after filtering, and when the water quality is unqualified, control the backflow to filter again, and discharge the water only after multiple filtrations until the water quality is qualified, thereby improving the water purification effect of the water purifier and the water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the appearance structure diagram of the water purifier of the utility model;

[0013] Figure 2 This is the pipeline structure diagram of the utility model water purifier;

[0014] Figure 3 This is a working system diagram of the water purifier of the utility model.

[0015] In the figure: 1. Water purifier; 2. Clean water tank; 201. Main pipe; 202. Booster pump; 3. First filter element; 301. Second filter element; 4. Detector; 5. Check switch; 501. Clean water tank; 6. Return pipe. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention.

[0017] Example

[0018] See also Figure 1-3The utility model provides a technical solution: a pure water reflux system for a water purifier, comprising a water purifier 1, wherein a detection component for detecting water quality is arranged inside the water purifier 1, wherein the detection component comprises a clean water tank 2 arranged outside the water purifier 1, for storing clean water before filtration, wherein a main pipe 201 is arranged at the output end of the clean water tank 2, for limiting the path of clean water delivery, wherein a booster pump 202, a first filter element 3, a second filter element 301, a detector 4 and a check switch 5 are arranged outside the main pipe 201 in sequence, wherein the booster pump 202 is used to provide driving force for water flow delivery, and the first filter element 3 and the second filter element 301 are provided outside the main pipe 201. The activated carbon filter element and the RO reverse osmosis filter element are respectively used to filter the clean water to make it into clean water. The detector 4 is used to perform TDS and temperature detection on the filtered water to ensure the quality of the filtered water. When the water quality reaches the detection standard, a signal is given to the water outlet joint in the clean water tank 501 so that the clean water can be discharged for drinking. When the water quality is unqualified, the PLC controller is used to open the valve of the reflux pipe 6 to transport the unqualified water to the front of the booster pump 202. A clean water tank 501 is provided at the other end of the main pipe 201 for storing clean water with qualified water quality after filtration. The main pipe 201 is located between the check switch 5 and the detector 4 and is provided with a reflux pipe 6.

[0019] In this embodiment, all electrical components are controlled by conventional controllers.

[0020] For example, please refer to Figure 1-3 The output end of the clean water tank 2 is connected to the main pipe 201 through a sleeve, and the main pipe 201 passes through the booster pump 202, the first filter element 3 and the second filter element 301 to allow the clean water to flow and filter in the filter element. The detector 4 and the check switch 5 are both connected to the main pipe 201 through the sleeve, and the other end of the main pipe 201 is connected to the water injection end of the clean water tank 501. Solenoid valves are provided at both ends of the reflux pipe 6. One end of the reflux pipe 6 is connected to the check switch 5 and the main pipe 201 of the detector 4, and the other end extends to the main pipe 201 between the booster pump 202 and the water purifier 1. When in use, first, when the water purifier 1 is turned on, the water between the check switch 5 and the detector 4 is refluxed to the main pipe 201 through the booster pump 202 and the reflux pipe 6, and then the booster pump 202 cooperates with the main pipe 201 to transport the clean water and filter the clean water through the first filter element 3 and the second filter element 301 in turn. After filtration, the water will be tested by the detector 4. When the water quality is unqualified, the reflux pipe 6 is opened by the PLC controller to transport the water to the main pipe 201 again for secondary filtration until the water quality is qualified. After the water quality test passes, a signal is sent to the clean water tank 501 to indicate that the filtration has passed, so that the clean water can be discharged for drinking.

[0021] The working process of the utility model: when in use, first when the water purifier 1 is turned on, the water between the check switch 5 and the detector 4 is refluxed to the main pipe 201 through the booster pump 202 and the reflux pipe 6, and then the booster pump 202 cooperates with the main pipe 201 to transport the clean water and filter the clean water through the first filter element 3 and the second filter element 301 in sequence. After filtering, the water will be tested by the detector 4. When the water quality is unqualified, the reflux pipe 6 is opened by the PLC controller to transport the water to the main pipe 201 again for secondary filtration until the water quality is qualified. After the water quality test is passed, the electric control valve is opened, and the purified qualified water flows into the water purification tank 501. After the faucet is turned on, the pure water can be discharged for drinking. The utility model realizes the detection of the water quality of the filtered water. When the water quality is unqualified, the reflux is controlled to be filtered again. After multiple filtrations, the water quality is not discharged until it is qualified, thereby improving the water purification effect of the water purifier and improving the water quality.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pure water reflux system for a water purifier, comprising a water purifier (1), wherein a detection component for detecting water quality is arranged inside the water purifier (1), characterized in that: The detection component comprises a clean water tank (2) arranged outside the water purifier (1); a main pipe (201) is arranged at the output end of the clean water tank (2); a booster pump (202), a first filter element (3), a second filter element (301), a detector (4) and a check switch (5) are arranged outside the main pipe (201) in sequence; a clean water tank (501) is arranged at the other end of the main pipe (201); and a return pipe (6) is arranged on the main pipe (201) between the check switch (5) and the detector (4).

2. A pure water reflux system for a water purifier according to claim 1, characterized in that: The output end of the clean water tank (2) is connected to the main pipe (201) via a sleeve, and the main pipe (201) passes through the booster pump (202), the first filter element (3) and the second filter element (301) so that the clean water can flow and be filtered in the filter element.

3. A pure water reflux system for a water purifier according to claim 1, characterized in that: The detector (4) and the check switch (5) are both connected to the main pipe (201) via a sleeve, and the other end of the main pipe (201) is connected to the water injection end of the clean water tank (501).

4. The pure water reflux system for a water purifier according to claim 1, characterized in that: Solenoid valves are provided at both ends of the return pipe (6); one end of the return pipe (6) is connected to the main pipe (201) of the check switch (5) and the detector (4), and the other end extends into the main pipe (201) between the booster pump (202) and the water purifier (1).

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