CN218025620U

CN218025620U - Laboratory is with high desalination RO reverse osmosis unit

Info

Publication number: CN218025620U
Application number: CN202221083523.3U
Authority: CN
Inventors: 欧明勋
Original assignee: Haisi Instrument Technology Shanghai Co ltd
Current assignee: Haisi Instrument Technology Shanghai Co ltd
Priority date: 2022-05-08
Filing date: 2022-05-08
Publication date: 2022-12-13
Anticipated expiration: 2032-05-08

Abstract

A laboratory is with high desalination rate RO reverse osmosis unit, involve the pure water/ultrapure water preparation apparatus technical field of the laboratory, solve the double RO membrane reverse osmosis pure water or ultrapure water preparation apparatus of the existing water tank of needing buffering because of buffering the water tank will cause the water supply of the two-level RO membrane to be insufficient because of factors such as temperature, water quality, environment, etc., the high technological deficiency such as the cost; comprises the following steps: the device comprises a pretreatment unit, a primary reverse osmosis unit, a secondary reverse osmosis unit and a control unit; the primary reverse osmosis unit comprises a primary booster pump connected with the PC pretreatment filter and a primary RO reverse osmosis membrane connected with the primary booster pump; the second-stage reverse osmosis unit comprises a second-stage booster pump connected with the water purifying outlet of the first-stage RO reverse osmosis membrane and a second-stage RO reverse osmosis membrane connected with the second-stage booster pump. The water outlet is stable, and as long as the primary system normally discharges water, the secondary system does not need to wait for water outlet, so that the water quality can be guaranteed.

Description

Laboratory is with high desalination RO reverse osmosis unit

Technical Field

The utility model belongs to the technical field of laboratory pure water/ultrapure water preparation equipment technique and specifically relates to the aspect of the improvement of laboratory pure water/ultrapure water preparation equipment structure of high desalination.

Background

The traditional laboratory RO reverse osmosis technology is a single RO reverse osmosis technology, the highest desalination rate can only reach 97%, the pure water quality has great difference due to different raw water qualities, and in order to improve the desalination rate of an RO membrane and the stable pure water quality, the traditional laboratory RO reverse osmosis technology is upgraded to a double RO membrane reverse osmosis technology; the technology needs to add control accessories such as a buffer water tank, a water tank control module, a circuit relay group and a booster pump of the secondary RO system. Therefore, although the desalination rate of the RO membrane and the stability of the water quality are improved, the buffer water tank can cause insufficient water supply of the secondary RO membrane due to factors such as temperature, water quality, environment and the like, and the secondary RO system can be started only when pure water outlet water needs to wait for partial water stored in the buffer water tank; and a control system needs mechanical control modules such as a relay and a liquid level sensor, so that the cost is high.

SUMMERY OF THE UTILITY MODEL

To sum up, the utility model discloses a solve present two RO membrane reverse osmosis pure water or the ultrapure water preparation equipment that need surge tank because of surge tank can lead to second grade RO membrane to supply water not enough because of factors such as temperature, quality of water, environment, technology such as with high costs is not enough, and provides a laboratory with high desalination rate RO reverse osmosis unit.

For solving the utility model provides a technique is not enough, and the technical scheme of adoption is:

the utility model provides a laboratory is with high desalination rate RO reverse osmosis unit which characterized in that RO reverse osmosis unit is including: the device comprises a pretreatment unit, a primary reverse osmosis unit, a secondary reverse osmosis unit and a control unit; the pretreatment unit comprises a PP pretreatment filter connected with the water inlet and a PC pretreatment filter connected with the PP pretreatment filter; the primary reverse osmosis unit comprises a primary booster pump connected with the PC pretreatment filter and a primary RO reverse osmosis membrane connected with the primary booster pump; the wastewater outlet of the first-stage RO reverse osmosis membrane is connected with a wastewater pipe through a first-stage wastewater electromagnetic valve; the second-stage reverse osmosis unit comprises a second-stage booster pump connected with a purified water outlet of the first-stage RO reverse osmosis membrane and a second-stage RO reverse osmosis membrane connected with the second-stage booster pump; the wastewater outlet of the second-stage RO reverse osmosis membrane is connected with a wastewater pipe through a second-stage wastewater electromagnetic valve; the purified water outlet of the second-stage RO reverse osmosis membrane is respectively connected with a second-stage RO reverse osmosis water outlet and a waste water pipe through a pressure switch, an effluent water quality monitoring electrode and a three-way electromagnetic valve in sequence; the control unit is respectively and electrically connected with the primary booster pump, the primary wastewater electromagnetic valve, the secondary booster pump, the secondary wastewater electromagnetic valve, the pressure switch, the effluent water quality monitoring electrode and the three-way electromagnetic valve.

As to the utility model discloses technical scheme does the scheme of further injecing including:

a pressure transmitter, a water inlet electromagnetic valve and a water inlet quality monitoring electrode are sequentially arranged between the PP pretreatment filter and the PC pretreatment filter; the pressure transmitter, the water inlet electromagnetic valve and the water inlet water quality monitoring electrode are respectively electrically connected with the control unit, and the control unit controls the opening of the water inlet electromagnetic valve according to the pressure transmitter and opens the water inlet water quality monitoring electrode for water quality monitoring.

The PP pretreatment filter adopts a folding PP filter element.

The PC pretreatment filter adopts a carbon fiber filter element.

And one-way check valves are arranged among the first-stage wastewater electromagnetic valve, the second-stage wastewater electromagnetic valve, the three-way electromagnetic valve and the wastewater pipe.

The beneficial effects of the utility model are that: the device of the utility model optimizes and cancels the components of a buffer water tank, a liquid level sensor, a circuit relay set and the like of a secondary RO system in the process and adopts a program control mode; a pressure sensor, a water quality detection electrode and an unqualified water discharge module are added; such improvement can let the pure water go out water more stably, as long as the normal play water of primary system, secondary system goes out water and need not wait for, because of having unqualified water discharge module, quality of water can more obtain the guarantee.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The part names corresponding to the respective marks in the figure are: 1. a water inlet, 2, a PP pretreatment filter, 3, a pressure transmitter, 4, a water inlet electromagnetic valve, 5, a water inlet quality monitoring electrode, 6, a PC pretreatment filter, 7, a primary booster pump, 8, a primary RO reverse osmosis membrane, 9, a primary wastewater electromagnetic valve, 10, a wastewater discharge port, 11, a primary RO reverse osmosis water pipeline, 12, a secondary booster pump, 13, a secondary RO reverse osmosis membrane, 14, a second-stage wastewater electromagnetic valve, 15, a pressure switch, 16, an effluent water quality monitoring electrode, 17, a three-way electromagnetic valve and 18, a second-stage RO reverse osmosis water outlet.

Detailed Description

The structure of the present invention will be further described with reference to the accompanying drawings and preferred embodiments of the present invention.

Referring to fig. 1, the utility model discloses a laboratory is with high desalination rate RO reverse osmosis unit, including: the device comprises a pretreatment unit, a first-stage reverse osmosis unit, a second-stage reverse osmosis unit and a control unit.

The pretreatment unit comprises a PP pretreatment filter 2 connected with the water inlet 1 and a PC pretreatment filter 6 connected with the PP pretreatment filter 2; the PP pretreatment filter 2 adopts a folding PP filter element; the PC pretreatment filter 6 adopts a carbon fiber filter element. A pressure transmitter 3, a water inlet electromagnetic valve 4 and a water inlet quality monitoring electrode 5 are sequentially arranged between the PP pretreatment filter 2 and the PC pretreatment filter 6; pressure transmitter 3, the solenoid valve 4 of intaking and intake water quality monitoring electrode 5 are connected with the control unit electricity respectively, and the control unit controls the solenoid valve 4 of intaking to open according to pressure transmitter 3 to and control intake water quality monitoring electrode 5 to open and carry out water quality monitoring.

The primary reverse osmosis unit comprises a primary booster pump 7 connected with the PC pretreatment filter 6 and a primary RO reverse osmosis membrane 8 connected with the primary booster pump 7; the wastewater outlet of the first-stage RO reverse osmosis membrane 8 is connected with a wastewater pipe through a first-stage wastewater electromagnetic valve 9; at the initial stage of the opening of the primary booster pump 7, the primary wastewater solenoid valve 9 is opened, and wastewater which washes the primary RO reverse osmosis membrane 8 under the action of the primary booster pump 7 is directly discharged through the primary wastewater solenoid valve 9, so as to avoid entering the secondary RO unit.

The principle of the secondary reverse osmosis unit is the same as that of the primary reverse osmosis unit, and the secondary reverse osmosis unit comprises a secondary booster pump 12 connected with a purified water outlet of the primary RO reverse osmosis membrane 8 and a secondary RO reverse osmosis membrane 13 connected with the secondary booster pump 12; the wastewater outlet of the second-stage RO reverse osmosis membrane 13 is connected with a wastewater pipe through a second-stage wastewater electromagnetic valve 14; the purified water outlet of the second-stage RO reverse osmosis membrane 13 is respectively connected with a second-stage RO reverse osmosis water outlet 18 and a waste water pipe through a pressure switch 15, an effluent water quality monitoring electrode 16 and a three-way electromagnetic valve 17 in sequence.

Because the utility model discloses a two booster pumps, and one-level waste water solenoid valve 9, second grade waste water solenoid valve 14, three solenoid valve 17 are equivalent to three unqualified water drainage module, in order to avoid the intraductal waste water of waste water to flow back through unqualified water drainage module, one-level waste water solenoid valve, second grade waste water solenoid valve and three solenoid valve and waste water pipe between all be equipped with one-way check valve.

The control unit is also respectively and electrically connected with a primary booster pump 7, a primary wastewater electromagnetic valve 9, a secondary booster pump 12, a secondary wastewater electromagnetic valve 14, a pressure switch 15, an effluent water quality monitoring electrode 16 and a three-way electromagnetic valve 17.

The working process of the utility model is as follows:

after the instrument is electrified, tap water enters the PP pretreatment filter 2 from the water inlet 1 for rough filtration pretreatment and then enters the pressure transmitter 3, the pressure transmitter 3 generates a sensing signal according to the water pressure in the pipeline, the control unit controls the water inlet electromagnetic valve 4 to be opened after judging that water exists according to the sensing signal of the pressure transmitter 3, and in the process that water flows into the PC pretreatment filter 6 through the water inlet quality monitoring electrode 5, the control unit detects the water inlet resistance value through the water inlet quality monitoring electrode 5 so as to judge the quality of raw water; in the specific implementation process, the inlet water quality monitoring electrode 5 can also be a sensor containing water temperature detection, and can automatically adjust the wastewater discharge amount according to the detected water temperature, so as to ensure that the outlet water amount of pure water and the water quality are more stable; then, raw water is filtered by a carbon fiber filter element in a PC pretreatment filter 6 and then enters a first-stage booster pump 7, the first-stage booster pump 7 is started to boost a first-stage RO reverse osmosis membrane 8, meanwhile, a first-stage wastewater electromagnetic valve 9 is started to start a flushing mode, flushing time can be set in a control unit, and standard time is 60 seconds; the flushing wastewater passing through the first-stage RO reverse osmosis membrane 8 in the flushing mode is discharged to a wastewater pipe through a first-stage wastewater electromagnetic valve 9; after the preset flushing time is finished, the primary wastewater electromagnetic valve 9 is closed, and the purified water filtered by the primary RO reverse osmosis membrane 8 enters the secondary booster pump 12 through the primary RO reverse osmosis water pipeline 11; similarly, the secondary booster pump 12 is started, the secondary wastewater electromagnetic valve 14 is opened within a preset time, the cleaning mode is executed firstly, and the flushing wastewater passing through the secondary RO reverse osmosis membrane 13 is discharged to a wastewater pipe through the secondary wastewater electromagnetic valve 14; after the secondary washing and cleaning mode is finished, purified water filtered by the secondary RO reverse osmosis membrane 13 passes through the pressure switch 15, the effluent water quality monitoring electrode 16 and the three-way electromagnetic valve 17 in sequence; if the resistance value detected by the control unit according to the effluent water quality monitoring electrode 16 is less than the preset value, the pure water output by the second-stage RO reverse osmosis membrane 13 does not meet the quality requirement, the three-way electromagnetic valve 17 is controlled to be opened to the end of the wastewater pipe, the wastewater which does not meet the quality is discharged through the wastewater pipe, and the discharge of the wastewater into the wastewater pipe is stopped until the water quality detection is qualified; the waste water of each unqualified water discharge module can be discharged through the waste water discharge port 10 after being discharged in the same waste water pipe, or can be discharged into different subsequent waste water reuse treatment units by adopting different waste water pipes; if the resistance value detected by the control unit according to the effluent water quality monitoring electrode 16 is greater than the preset value, the pure water output by the second-stage RO reverse osmosis membrane 13 meets the quality requirement, and the three-way electromagnetic valve 17 is controlled to be opened to provide the pure water for the second-stage RO reverse osmosis water outlet 18. When water is not taken from the secondary RO reverse osmosis water outlet 18, the water pressure at the pressure switch 15 reaches a set value, and the system is shut down for protection; when water is taken again, the water pressure at the pressure switch 15 is reduced to a starting value, and the system starts to produce water. By this circulation, the required pure water is continuously produced.

The utility model discloses each unit can all install integrated on a casing to through its automatic operation of the control unit control, can use on the different laboratory pure water/ultrapure water equipment of taking RO reverse osmosis system, let pure water play water quality of water more stable.

The foregoing detailed description is given by way of example only, and is provided to better enable one skilled in the art to understand the patent, and is not intended to limit the scope of the patent; any equivalent alterations or modifications made according to the spirit of the disclosure are included in the scope of the present patent.

Claims

1. The utility model provides a laboratory is with high desalination rate RO reverse osmosis unit which characterized in that RO reverse osmosis unit is including: the device comprises a pretreatment unit, a primary reverse osmosis unit, a secondary reverse osmosis unit and a control unit; the pretreatment unit comprises a PP pretreatment filter connected with the water inlet and a PC pretreatment filter connected with the PP pretreatment filter; the primary reverse osmosis unit comprises a primary booster pump connected with the PC pretreatment filter and a primary RO reverse osmosis membrane connected with the primary booster pump; the wastewater outlet of the first-stage RO reverse osmosis membrane is connected with a wastewater pipe through a first-stage wastewater electromagnetic valve; the second-stage reverse osmosis unit comprises a second-stage booster pump connected with a purified water outlet of the first-stage RO reverse osmosis membrane and a second-stage RO reverse osmosis membrane connected with the second-stage booster pump; the waste water outlet of the second-stage RO reverse osmosis membrane is connected with a waste water pipe through a second-stage waste water electromagnetic valve; the purified water outlet of the second-stage RO reverse osmosis membrane is respectively connected with a second-stage RO reverse osmosis water outlet and a waste water pipe through a pressure switch, an effluent water quality monitoring electrode and a three-way electromagnetic valve in sequence; the control unit is respectively and electrically connected with the primary booster pump, the primary wastewater electromagnetic valve, the secondary booster pump, the secondary wastewater electromagnetic valve, the pressure switch, the effluent water quality monitoring electrode and the three-way electromagnetic valve.

2. The laboratory high salt rejection RO reverse osmosis apparatus of claim 1, wherein: a pressure transmitter, a water inlet electromagnetic valve and a water inlet quality monitoring electrode are sequentially arranged between the PP pretreatment filter and the PC pretreatment filter; the pressure transmitter, the water inlet electromagnetic valve and the water inlet water quality monitoring electrode are respectively electrically connected with the control unit, and the control unit controls the opening of the water inlet electromagnetic valve according to the pressure transmitter and opens the water inlet water quality monitoring electrode for water quality monitoring.

3. The laboratory high salt rejection RO reverse osmosis apparatus of claim 1, wherein: the PP pretreatment filter adopts a folding PP filter element.

4. The laboratory high salt rejection RO reverse osmosis apparatus of claim 1, wherein: the PC pretreatment filter adopts a carbon fiber filter element.

5. The laboratory high salt rejection RO reverse osmosis apparatus of claim 1, wherein: and one-way check valves are arranged among the first-stage wastewater electromagnetic valve, the second-stage wastewater electromagnetic valve, the three-way electromagnetic valve and the wastewater pipe.