CN205387488U - Reverse osmosis membrane washing unit of water purification system - Google Patents

Abstract

The reverse osmosis membrane flushing device of the water purification system includes a water inlet, the water inlet is connected to the reverse osmosis membrane, the reverse osmosis membrane is provided with a pure water port and a waste water port, the pure water port is connected to the check valve, and the check valve is connected to the rear activated carbon composite filter element and a high-pressure switch, the post-installed activated carbon composite filter element is connected to the pure water discharge port, the high-pressure switch is connected to the large pressure tank, the waste water port of the reverse osmosis membrane is connected to the waste water solenoid valve, and the waste water solenoid valve is connected to the waste water discharge port, characterized in that: the pure water A backwash waterway is connected between the water inlet and the water inlet, and a small pressure barrel and a flushing solenoid valve are arranged on the backwash waterway. Reduce the concentration of wastewater in the reverse osmosis membrane, reduce the impurities in the reverse osmosis membrane, solve the problem that the filtration rate is not up to standard when the water purifier is turned on, ensure the service life of the reverse osmosis membrane, and realize automatic operation without manual cleaning , easy to operate.

Description

Water purification system reverse osmosis membrane flushing device

technical field

The utility model relates to a water purification system of a water purifier, in particular to a reverse osmosis membrane flushing device of the water purification system.

Background technique

With the continuous improvement of people's living standards, people pay more and more attention to the health of drinking water, so household water purifiers are widely used. After the reverse osmosis membrane in the water purification system filters the raw water, the pure water enters the pressure tank through the other side of the reverse osmosis membrane, and part of the waste water is discharged through the waste water discharge port, while the other part of waste water and impurities remain in the reverse osmosis membrane. On one side, if it is not cleaned for a long time, impurities will affect the service life and filtration efficiency of the reverse osmosis membrane. The existing technology is to disassemble the reverse osmosis membrane for cleaning, which is troublesome and time-consuming.

Contents of the invention

The purpose of this utility model is to overcome the shortcomings of the existing technology, to provide a system that automatically cleans the reverse osmosis membrane when the system stops water intake, without manual operation, effectively reduces the concentration of wastewater, reduces impurities, and ensures the service life of the reverse osmosis membrane. Water purification system reverse osmosis membrane flushing device.

The technical scheme of the reverse osmosis membrane flushing device of the utility model water purification system is as follows: it includes a water inlet, the water inlet is connected to the reverse osmosis membrane, the reverse osmosis membrane is provided with a pure water port and a waste water port, the pure water port is connected with a check valve, the check valve The valve is connected to the rear activated carbon composite filter element and high-pressure switch, the rear activated carbon composite filter element is connected to the pure water discharge port, the high pressure switch is connected to the large pressure tank, the waste water port of the reverse osmosis membrane is connected to the waste water solenoid valve, and the waste water solenoid valve is connected to the waste water discharge port. It is that: a backwashing waterway is connected between the pure water inlet and the water inlet, and a small pressure barrel and a flushing solenoid valve are arranged on the backwashing waterway.

The utility model discloses a reverse osmosis membrane flushing device for a water purification system. At this time, the tap water is first transported from the water inlet to the reverse osmosis membrane by the tap water, and the tap water is filtered by the reverse osmosis membrane, and part of the filtered waste water is discharged to the waste water discharge port through the waste water port and the waste water solenoid valve, while there is still a part of waste water Retained in the reverse osmosis membrane, a small part of the filtered pure water flows into the small pressure tank through the backwashing channel. At this time, the flushing solenoid valve is closed, and most of the pure water is sent to the large pressure tank through the check valve and high pressure switch Inside, when the pure water in the large pressure tank reaches a certain pressure, the high-pressure switch is disconnected to stop water production. At this time, the flushing solenoid valve is opened, and the pure water in the small pressure tank will flow from the reverse osmosis membrane through the flushing solenoid valve. One side of the water inlet flows in, while the pure water in the large pressure tank cannot flow back to the reverse osmosis membrane due to the check valve. It is discharged through the outlet, thereby reducing the concentration of wastewater in the reverse osmosis membrane, reducing impurities in the reverse osmosis membrane, solving the problem that the filtration rate is not up to standard when the water purifier is started, ensuring the service life of the reverse osmosis membrane, and does not require manual cleaning , to achieve automatic operation, easy to operate.

Description of drawings

Fig. 1 is a flowchart of the reverse osmosis membrane flushing device of the water purification system of the present invention.

detailed description

The utility model relates to a reverse osmosis membrane flushing device of a water purification system, as shown in Figure 1, comprising a water inlet 1, the water inlet is connected to a reverse osmosis membrane 2, and the reverse osmosis membrane is provided with a pure water port 3 and a waste water port 4, pure The water port is connected to the check valve 5, the check valve is connected to the rear activated carbon composite filter element 6 and the high pressure switch 7, the rear activated carbon composite filter element is connected to the pure water discharge port 8, the high pressure switch is connected to the large pressure tank 9, and the waste water port of the reverse osmosis membrane 2 4 Connect the waste water solenoid valve 10, the waste water solenoid valve is connected to the waste water discharge port 11, characterized in that: a backwash waterway 12 is connected between the pure water port 3 and the water inlet 1, and a small pressure barrel is set on the backwash waterway 13 and flush solenoid valve 14. The main feature is that a backwashing waterway 12 is connected between the pure water port 3 and the water inlet 1, and a small pressure barrel 13 and a flushing solenoid valve 14 are arranged on the backwashing waterway. 1 is transported to the reverse osmosis membrane 2, and the tap water is filtered by the reverse osmosis membrane, and part of the filtered waste water is discharged to the waste water discharge port 11 through the waste water outlet 4 and the waste water solenoid valve 10, while a part of the waste water remains in the reverse osmosis membrane 2 Inside, a small part of the filtered pure water flows into the small pressure tank 13 through the backwashing channel 12, at this time the flushing solenoid valve 14 is closed, and most of the pure water is sent to the large pressure tank through the check valve 5 and the high pressure switch 7 9, when the high pressure tank is full of pure water and reaches a certain pressure, the high pressure switch 7 is disconnected to stop water production. At this time, the flushing electromagnetic valve 14 is opened, and the pure water in the small pressure tank 13 will flow through the flushing electromagnetic valve. The water inlet 1 side of the reverse osmosis membrane 2 flows in, while the pure water in the large pressure tank 9 cannot return to the reverse osmosis membrane 2 due to the check valve 5, and the pure water enters the reverse osmosis membrane from the water inlet 1 to the waste water inside it. Flushing is performed, and the flushed wastewater is discharged from the wastewater discharge port 11, thereby reducing the concentration of wastewater in the reverse osmosis membrane 2, reducing impurities in the reverse osmosis membrane, and solving the problem that the filtration rate is not up to standard when the water purifier is started to work, ensuring The service life of the reverse osmosis membrane is extended, and manual cleaning is not required, automatic operation is realized, and the operation is convenient.

Claims (1)

1. The reverse osmosis membrane flushing device of the water purification system, including the water inlet (1), the water inlet is connected to the reverse osmosis membrane (2), and the reverse osmosis membrane is provided with a pure water port (3) and a waste water port (4), and a pure water port Connect the check valve (5), the check valve is connected to the rear activated carbon composite filter element (6) and the high pressure switch (7), the rear activated carbon composite filter element is connected to the pure water discharge port (8), and the high pressure switch is connected to the large pressure tank (9) , the waste water port (4) of the reverse osmosis membrane (2) is connected to the waste water solenoid valve (10), and the waste water solenoid valve is connected to the waste water discharge port (11), characterized in that: the pure water port (3) and the water inlet (1 ) is connected with a backwashing waterway (12), and a small pressure barrel (13) and a flushing solenoid valve (14) are arranged on the backwashing waterway.