Water purifier with flushing device

Abstract

The utility model discloses a water purifier with a flushing device, and belongs to the technical field of water quality purification equipment. A water purifier with a flushing device comprises a water inlet pipe connected with a raw water inlet, and a composite filter element is mounted on the water inlet pipe; the rear end of the composite filter element is provided with two paths of water in a forking manner, and one path is sequentially connected with a water inlet electromagnetic valve and a booster pump; a reverse osmosis membrane filter element is arranged at the rear end of the booster pump; a pure water pipe is arranged at the rear end of the reverse osmosis membrane filter element; a water return pipe is arranged between the water inlet pipe and the pure water pipe; a flushing valve and a first check valve are arranged on the water return pipe; the TDS value of initial outlet water of the water purifier is reduced through the flush valve.

Description

Technical Field

[0001] This utility model belongs to the technical field of water purification equipment, and more specifically, relates to a water purifier with a flushing device. Background Technology

[0002] Existing water purifiers typically employ multi-stage filtration and reverse osmosis technology to purify raw water. In actual use, impurities easily adhere to the surfaces of composite filter cartridges and reverse osmosis membranes, especially after the water purifier has been idle for a long time. The water remaining in the pipes will absorb more impurities, resulting in a higher TDS (Total Dissolved Solids) value for the first cup of water when the water purifier is restarted, affecting the user experience. Therefore, it is necessary to design a water purifier that, through a reasonable water circuit design, can effectively flush out impurities in the residual water pipes, reduce the TDS value of the initial water output from the purifier, and thus improve the water purification effect and user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a water purifier with a flushing device, which can reduce the TDS value of the initial water output from the water purifier.

[0004] This utility model discloses a water purifier with a flushing device, including an inlet pipe connected to a raw water inlet, and a composite filter element installed on the inlet pipe; the rear end of the composite filter element is branched into two water channels, one of which is connected in sequence to an inlet solenoid valve and a booster pump; a reverse osmosis membrane filter element is installed at the rear end of the booster pump, and a pure water pipe is installed at the rear end of the reverse osmosis membrane filter element.

[0005] A return water pipe is installed between the inlet water pipe and the pure water pipe, and the return water pipe is equipped with a flushing valve and a first check valve.

[0006] As a further improvement of this utility model, it also includes a water purification pipe; another water path at the rear end of the composite filter element is directly connected to the water purification pipe to obtain purified water.

[0007] As a further improvement of this utility model, a wastewater pipe is also provided at the rear end of the reverse osmosis membrane filter element.

[0008] As a further improvement of this utility model, the reverse osmosis membrane filter element is provided with an inlet, a pure water outlet and a concentrate outlet. The inlet is installed and connected to a booster pump, the pure water outlet is installed and connected to a pure water pipe, and the concentrate outlet is installed and connected to a wastewater pipe.

[0009] As a further improvement of this utility model, a second check valve and a high-pressure switch are sequentially installed on the pure water pipe; one end of the return water pipe is connected to the pure water pipe between the second check valve and the reverse osmosis membrane filter element, and the other end of the return water pipe is connected to the inlet water pipe between the inlet solenoid valve and the booster pump.

[0010] As a further improvement of this utility model, the flushing valve is a reflux solenoid valve.

[0011] As a further improvement of this utility model, a wastewater solenoid valve is installed on the wastewater pipe of the reverse osmosis membrane filter element.

[0012] As a further improvement of this utility model, it also includes a controller, which is used to control the signal reception and opening / closing of the inlet solenoid valve, the booster pump, the flushing valve, and the wastewater solenoid valve.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. By installing a flushing valve and a first check valve on the return water pipe, and controlling the inlet solenoid valve to determine when to open the flushing valve, the pre-stored water in the pipe is automatically flushed during the interval between two working cycles of the water purifier, effectively removing impurities in the pipe and reducing the TDS value of the initial effluent.

[0015] 2. By connecting pure water pipes and wastewater pipes to the pure water outlet and concentrated water outlet of the reverse osmosis membrane respectively, and installing a wastewater solenoid valve, the wastewater generated during the reverse osmosis process can be treated efficiently, while avoiding the backflow of concentrated water from affecting the quality of purified water.

[0016] 3. Effectively extends the service life of filter cartridges and reverse osmosis membranes, further optimizing the overall performance of the water purifier. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the water purifier of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the water purifier of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal connection structure of this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Control panel; 2. Composite filter element; 3. Flushing valve; 4. Inlet solenoid valve; 5. Reverse osmosis membrane filter element; 6. Wastewater solenoid valve; 7. Booster pump; 8. Second check valve; 9. First check valve; 10. Clean water pipe; 11. Pure water pipe; 12. Wastewater pipe; 13. Return water pipe; 14. Inlet water pipe; 15. High-pressure switch. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0023] Specific Implementation Example 1: Please refer to Figure 1-3A water purifier with a flushing device includes an inlet pipe 14 connected to a raw water inlet and a purified water pipe 10. A composite filter element 2 is installed on the inlet pipe 14. The rear end of the composite filter element 2 is branched into two water paths, one of which is directly connected to the purified water pipe 10 to obtain purified water, and the other path is connected in sequence to an inlet solenoid valve 4 and a booster pump 7.

[0024] A reverse osmosis membrane filter element 5 is installed at the rear end of the booster pump 7, and a pure water pipe 11 and a wastewater pipe 12 are installed at the rear end of the reverse osmosis membrane filter element 5.

[0025] A return water pipe 13 is installed between the inlet water pipe 14 and the pure water pipe 11. The return water pipe 13 is equipped with a flushing valve 3 and a first check valve 9.

[0026] The reverse osmosis membrane filter element 5 is equipped with an inlet, a pure water outlet, and a concentrate outlet. The inlet is connected to the booster pump 7, the pure water outlet is connected to the pure water pipe 11, and the concentrate outlet is connected to the wastewater pipe 12.

[0027] A second check valve 8 and a high-pressure switch 15 are sequentially installed on the pure water pipe 11; one end of the return water pipe 13 is connected to the pure water pipe 11 between the second check valve 8 and the reverse osmosis membrane filter element 5, and the other end of the return water pipe 13 is connected to the inlet water pipe 14 between the inlet solenoid valve 4 and the booster pump 7; the high-pressure switch 15 is installed at the end of the second check valve 8 away from the reverse osmosis membrane filter element 5.

[0028] Preferably, the flushing valve 3 is a reflux solenoid valve.

[0029] The composite filter element 2 performs preliminary filtration on the incoming raw water, and then enters the reverse osmosis membrane filter element 5 through the booster pump 7. After being separated by the reverse osmosis membrane, pure water and concentrated water are separated. The pure water flows into the pure water pipe 11 through the pure water outlet, and the concentrated water flows into the wastewater pipe 12 through the concentrated water outlet.

[0030] A wastewater solenoid valve 6 is installed on the wastewater pipe 12 of the reverse osmosis membrane filter element 5.

[0031] The water purifier also includes a controller and a control panel 1. The controller is connected to and electrically connected to the control panel 1. The user controls the controller through the control panel 1. The controller is mainly used to control the signal reception and opening and closing of the inlet solenoid valve 4, booster pump 7, flushing valve 3, wastewater solenoid valve 6, high-pressure switch 15, etc., so as to ensure the overall operation of the water purifier.

[0032] Preferably, control panel 1 is a touch screen panel.

[0033] The above description is merely a preferred embodiment of this application; however, the scope of protection of this application is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

Claims

1. A water purifier with a rinsing device, characterized in that: It includes an inlet pipe (14) connected to the raw water inlet, and a composite filter element (2) is installed on the inlet pipe (14); the rear end of the composite filter element (2) is branched into two water channels, one of which is connected to an inlet solenoid valve (4) and a booster pump (7) in sequence; a reverse osmosis membrane filter element (5) is installed at the rear end of the booster pump (7), and a pure water pipe (11) is installed at the rear end of the reverse osmosis membrane filter element (5); A return water pipe (13) is installed between the inlet pipe (14) and the pure water pipe (11). The return water pipe (13) is equipped with a flushing valve (3) and a first check valve (9).

2. A water purifier with a rinsing device according to claim 1, characterized in that: It also includes a water purification pipe (10); another water path at the rear end of the composite filter element (2) is directly connected to the water purification pipe (10) to obtain purified water.

3. A water purifier with a rinsing device according to claim 1, characterized in that: A wastewater pipe (12) is also installed at the rear end of the reverse osmosis membrane filter element (5).

4. A water purifier with a rinsing device according to claim 3, characterized in that: The reverse osmosis membrane filter element (5) is equipped with an inlet, a pure water outlet and a concentrated water outlet. The inlet is connected to the booster pump (7), the pure water outlet is connected to the pure water pipe (11), and the concentrated water outlet is connected to the wastewater pipe (12).

5. A water purifier with a rinsing device according to claim 1, characterized in that: A second check valve (8) and a high-pressure switch (15) are installed sequentially on the pure water pipe (11); one end of the return water pipe (13) is connected to the pure water pipe (11) between the second check valve (8) and the reverse osmosis membrane filter element (5), and the other end of the return water pipe (13) is connected to the inlet water pipe (14) between the inlet solenoid valve (4) and the booster pump (7).

6. A water purifier with a rinsing device according to claim 1, characterized in that: The flushing valve (3) is a return solenoid valve.

7. A water purifier with a rinsing device according to claim 1, characterized in that: Wastewater solenoid valve (6) is installed on the wastewater pipe (12) of the reverse osmosis membrane filter element (5).

8. A water purifier with a rinsing device according to claim 7, characterized in that: It also includes a controller, which is used to control the signal reception and opening / closing of the inlet solenoid valve (4), booster pump (7), flushing valve (3), wastewater solenoid valve (6), and high-pressure switch (15).

Images