A reverse osmosis nanofiltration membrane module cleaning integrated system

Abstract

The utility model relates to a kind of reverse osmosis nanofiltration membrane module cleaning integration system, comprising: reverse osmosis water tank, nanofiltration water tank, reverse osmosis membrane module and nanofiltration membrane module, water production pipe, concentrated water pipe, water inlet pipe, touch input output module, control module, solenoid valve, high-pressure variable frequency pump, data acquisition module, safety valve, check valve, digital display conductivity meter, turbine flowmeter, digital display pressure transmitter and rotor flowmeter.The utility model has the beneficial effects of: compatible multiple specifications of membrane module, can shorten the cleaning time and test time of reverse osmosis membrane module and nanofiltration membrane module;Designed data acquisition module cooperates PLC control module, can support historical data backtracking and export;Communication module can also be set, which is convenient for networking remote monitoring;Flow and pressure can be dynamically adjusted according to preset parameters, which effectively reduces energy consumption and ensures the accuracy of test;Closed-loop water circulation system can reduce wastewater discharge.

Description

Technical Field

[0001] This utility model belongs to the technical field of cleaning and performance testing of reverse osmosis membrane modules and nanofiltration membrane modules, and particularly relates to an integrated cleaning system for reverse osmosis and nanofiltration membrane modules. Background Technology

[0002] Existing membrane module cleaning and performance testing equipment typically only supports testing of membrane modules of a single specification. Furthermore, it requires cleaning batches of tested membrane modules before retesting their performance, which is complex, time-consuming, and energy-intensive. In addition, existing technologies lack intelligent data acquisition and analysis functions during membrane module cleaning and performance testing, often relying on manual data recording. In summary, existing membrane module cleaning and performance testing equipment is insufficient to meet the needs of efficient and accurate industrial testing. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an integrated cleaning system for reverse osmosis nanofiltration membrane modules.

[0004] This integrated cleaning system for reverse osmosis and nanofiltration membrane modules includes: a reverse osmosis water tank, a nanofiltration water tank, reverse osmosis membrane modules and nanofiltration membrane modules, a permeate pipe, a concentrate pipe, an inlet pipe, a touch input / output module, a control module, solenoid valves, a high-pressure variable frequency pump, a data acquisition module, a safety valve, a check valve, a digital conductivity meter, a turbine flow meter, a digital pressure transmitter, and a rotor flow meter. It integrates a control module and a touch screen for starting up, performing performance tests, and storing data for the reverse osmosis (RO) and nanofiltration (NF) membrane modules. The designed data acquisition module, in conjunction with the PLC control module, supports historical data retrieval and export.

[0005] Both the reverse osmosis water tank and the nanofiltration water tank include: a raw water tank for storing water to be treated, a product water tank for storing treated purified water, and a concentrate tank for storing concentrated wastewater. The raw water tank is equipped with a raw water outlet, the concentrate tank is equipped with a concentrate inlet, and the product water tank is equipped with a purified water inlet.

[0006] Both the reverse osmosis (RO) and nanofiltration (NFR) water tanks have raw water outlets on their internal raw water tanks. These outlets are connected to the raw water inlets of the RO and NFR membrane modules via inlet pipes. The concentrate outlet of the RO membrane module is connected to a concentrate pipe, and multiple concentrate pipes of the RO membrane module are connected to the concentrate inlet of the RO water tank. Similarly, the concentrate outlet of the NFR membrane module is connected to a concentrate pipe, and multiple concentrate pipes of the NFR membrane module are connected to the concentrate inlet of the NFR water tank. The permeate outlet of the RO membrane module is connected to a permeate pipe, and multiple permeate pipes of the RO membrane module are connected to the permeate inlet of the RO water tank. Likewise, the permeate outlet of the NFR membrane module is connected to a permeate pipe, and multiple permeate pipes of the NFR membrane module are connected to the permeate inlet of the NFR water tank. The permeate pipes, concentrate pipes, inlet pipes, RO water tank, NFR water tank, and the RO and NFR membrane modules together form a closed-loop water circulation system, which can reduce wastewater discharge.

[0007] The control module is electrically connected to multiple solenoid valves, multiple high-pressure variable frequency pumps, safety valves, check valves, multiple digital conductivity meters, multiple turbine flow meters, multiple digital pressure transmitters, multiple rotor flow meters, a touch input / output module, and a data acquisition module. It uses high-pressure variable frequency pumps and is also equipped with solenoid valves that are linked to the high-pressure variable frequency pumps. It can dynamically adjust the flow and pressure according to preset parameters, effectively reducing energy consumption and ensuring the accuracy of the test. The data acquisition module is electrically connected to multiple solenoid valves, multiple high-pressure variable frequency pumps, safety valves, check valves, multiple digital conductivity meters, multiple turbine flow meters, multiple digital pressure transmitters, and multiple rotor flow meters.

[0008] As a preferred embodiment: multiple solenoid valves are installed on the product water pipe, concentrate pipe, and feed water pipe; high-pressure variable frequency pumps are installed on the multiple feed water pipes connecting the reverse osmosis water tank and the reverse osmosis membrane module; safety valves are installed on the multiple concentrate pipes connecting the reverse osmosis membrane module and the reverse osmosis water tank; multiple check valves are installed on the product water pipe and the concentrate pipe; a digital conductivity meter is installed on each product water pipe; a turbine flow meter is installed on each feed water pipe and the product water pipe; a digital pressure transmitter is installed on each concentrate pipe and the feed water pipe; and a rotor flow meter is installed on each concentrate pipe.

[0009] As a preferred option:

[0010] The touch input / output module is used to receive external touch input and send it to the control module.

[0011] The control module is used to identify and determine the logged-in user, the membrane number to be tested entered by the operator, and the test time period of the membrane to be tested based on the touch input, and to generate corresponding opening / closing commands for the solenoid valve, high-pressure variable frequency pump, safety valve, check valve, digital conductivity meter, turbine flow meter, digital pressure transmitter and rotor flow meter, generate control commands for the data acquisition module, and send these commands to the corresponding components.

[0012] The data acquisition module is used to acquire data from solenoid valves, high-pressure variable frequency pumps, safety valves, check valves, digital conductivity meters, turbine flow meters, digital pressure transmitters, and rotor flow meters according to the instructions sent by the control module.

[0013] As a preferred embodiment, a communication module is also provided, which is electrically connected to the control module and the host computer for communication between the control module and the host computer.

[0014] The beneficial effects of this utility model are:

[0015] It integrates a PLC control module and a touch screen and other touch input / output modules to realize the start-up, performance testing and data storage of reverse osmosis (RO) membrane modules and nanofiltration (NF) membrane modules; the designed data acquisition module, together with the PLC control module, can support historical data backtracking and export; it can also be equipped with a matching communication module to facilitate network-based remote monitoring.

[0016] Employing a high-pressure variable frequency pump and equipped with a solenoid valve linked to it, the system dynamically adjusts flow and pressure according to preset parameters, effectively reducing energy consumption and ensuring testing accuracy. The product water pipe, concentrate pipe, inlet water pipe, reverse osmosis water tank, nanofiltration water tank, and the reverse osmosis and nanofiltration membrane modules together form a closed-loop water circulation system, reducing wastewater discharge. Compatible with various membrane module specifications, it can simultaneously clean, test, and record data for multiple 8040 and 4040 membrane housing modules. Supporting both reverse osmosis and nanofiltration membrane housing modules, it can reduce cleaning and testing time by more than 50%, improving efficiency. This integrated reverse osmosis and nanofiltration membrane module cleaning system is particularly suitable for laboratory testing, membrane production quality inspection, and industrial water treatment scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the equipment and piping of the integrated cleaning system for reverse osmosis nanofiltration membrane modules of this utility model;

[0018] Figure 2 Circuit diagram of an integrated cleaning system for reverse osmosis nanofiltration membrane modules;

[0019] Figure 3 This is an overall schematic diagram of the integrated cleaning system for reverse osmosis nanofiltration membrane modules of this utility model;

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of section AA;

[0021] Figure 5 for Figure 3 Enlarged diagram of section BB;

[0022] Figure 6 for Figure 3 Enlarged diagram of section BB;

[0023] Figure 7 for Figure 3 Enlarged schematic diagram of the DD section.

[0024] Figure labeling: 1. Product water pipe; 2. Concentrate water pipe; 3. Inlet water pipe; 4. Reverse osmosis water tank; 5. Nanofiltration water tank; 6. Reverse osmosis membrane module and nanofiltration membrane module; 7. Touch input / output module; 8. Control module; 9. Solenoid valve; 10. High-pressure variable frequency pump; 11. Data acquisition module; 12. Safety valve; 13. Check valve; 14. Digital conductivity meter; 15. Turbine flow meter; 16. Digital pressure transmitter; 17. Rotor flow meter. Detailed Implementation

[0025] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0026] As one example, such as Figures 1 to 7 As shown, an integrated cleaning system for reverse osmosis and nanofiltration membrane modules includes: a reverse osmosis water tank 4, a nanofiltration water tank 5, a reverse osmosis membrane module and a nanofiltration membrane module 6, a product water pipe 1, a concentrate pipe 2, an inlet water pipe 3, a touch input / output module 7, a control module 8, and a data acquisition module 11. It integrates a control module and a touch screen for starting up, performance testing, and data storage of the reverse osmosis (RO) and nanofiltration (NF) membrane modules. The designed data acquisition module, in conjunction with the PLC control module, can support historical data retrieval and export.

[0027] Both the reverse osmosis water tank 4 and the nanofiltration water tank 5 include: a raw water tank for storing water to be treated, a product water tank for storing treated purified water, and a concentrate tank for storing concentrated wastewater. The raw water tank is equipped with a raw water outlet, the concentrate tank is equipped with a concentrate inlet, and the product water tank is equipped with a purified water inlet.

[0028] Both the reverse osmosis water tank 4 and the nanofiltration water tank 5 have raw water outlets inside their respective raw water tanks. These outlets are connected to the raw water inlets of the reverse osmosis membrane module and the nanofiltration membrane module, respectively, via inlet pipes 3. The concentrate outlet of the reverse osmosis membrane module is connected to a concentrate pipe 2, and multiple concentrate pipes 2 of the reverse osmosis membrane module are connected to the concentrate inlet of the reverse osmosis water tank 4. Similarly, the concentrate outlet of the nanofiltration membrane module is connected to a concentrate pipe 2, and multiple concentrate pipes 2 of the nanofiltration membrane module are connected to the nanofiltration water tank. The concentrate inlet on the 5th layer; the permeate outlet on the reverse osmosis membrane module is connected to permeate pipe 1, and multiple permeate pipes 1 of the reverse osmosis membrane module are connected to the permeate inlet on the reverse osmosis water tank 4; the permeate outlet on the nanofiltration membrane module is connected to permeate pipe 1, and multiple permeate pipes 1 of the nanofiltration membrane module are connected to the permeate inlet on the nanofiltration water tank 5; the permeate pipe, concentrate pipe, inlet pipe, reverse osmosis water tank, nanofiltration water tank, and the reverse osmosis membrane module and nanofiltration membrane module together form a closed-loop water circulation system, which can reduce wastewater discharge;

[0029] Multiple solenoid valves 9 are installed on each of the product water pipe 1, concentrate pipe 2 and inlet water pipe 3. High-pressure variable frequency pumps 10 are installed on each of the multiple inlet water pipes 3 connecting the reverse osmosis water tank 4 and the reverse osmosis membrane module. Safety valves 12 are installed on each of the multiple concentrate pipes 2 connecting the reverse osmosis membrane module and the reverse osmosis water tank 4. Multiple check valves 13 are installed on each of the product water pipe 1 and the concentrate pipe 2. A digital conductivity meter 14 is installed on each of the product water pipes 1. A turbine flow meter 15 is installed on each of the inlet water pipes 3 and the product water pipe 1. A digital pressure transmitter 16 is installed on each of the concentrate pipes 2 and the inlet water pipe 3. A rotor flow meter 17 is installed on each of the concentrate pipes 2.

[0030] The control module 8 is electrically connected to multiple solenoid valves 9, multiple high-pressure variable frequency pumps 10, safety valves 12, check valves 13, multiple digital conductivity meters 14, multiple turbine flow meters 15, multiple digital pressure transmitters 16, multiple rotor flow meters 17, a touch input / output module 7, and a data acquisition module 11. It uses high-pressure variable frequency pumps and is also equipped with solenoid valves that are linked to the high-pressure variable frequency pumps. It can dynamically adjust the flow and pressure according to preset parameters, effectively reducing energy consumption and ensuring the accuracy of the test.

[0031] The touch input / output module 7 is used to receive external touch input and send the external touch input to the control module 8;

[0032] The control module 8 is used to identify and determine the logged-in user, the membrane number to be tested entered by the operator, and the test time period of the membrane to be tested based on the touch input, and to generate corresponding opening / closing commands for the solenoid valve 9, high-pressure variable frequency pump 10, safety valve 12, check valve 13, digital conductivity meter 14, turbine flow meter 15, digital pressure transmitter 16 and rotor flow meter 17, generate control commands for the data acquisition module 11, and send these commands to the corresponding components;

[0033] The data acquisition module 11 is used to acquire data from the solenoid valve 9, the high-pressure variable frequency pump 10, the safety valve 12, the check valve 13, the digital conductivity meter 14, the turbine flow meter 15, the digital pressure transmitter 16, and the rotor flow meter 17 according to the instructions sent by the control module 8.

[0034] It also includes a communication module, which is electrically connected to the control module 8 and the host computer for communication between the control module 8 and the host computer.

[0035] The above-mentioned integrated reverse osmosis and nanofiltration membrane module cleaning system, during operation: the touch input / output module 7 receives external touch input and sends the touch input to the control module 8; the actions that can be performed include: turning on / off (RO tank), turning on / off (NF tank), starting / stopping the high-pressure pump, and setting the frequency; the variables that can be output include: permeate flow rate, permeate conductivity, concentrate flow rate, concentrate conductivity, concentrate pressure, feed water flow rate, feed water conductivity, feed water pressure, recovery rate, and rejection rate.

Claims

1. A reverse osmosis nanofiltration membrane module cleaning integrated system, characterized in that, include: Reverse osmosis water tank (4), nanofiltration water tank (5), reverse osmosis membrane module and nanofiltration membrane module (6), product water pipe (1), concentrate pipe (2), inlet water pipe (3), touch input / output module (7), control module (8), solenoid valve (9), high pressure variable frequency pump (10), data acquisition module (11), safety valve (12), check valve (13), digital conductivity meter (14), turbine flow meter (15), digital pressure transmitter (16) and rotor flow meter (17); The reverse osmosis water tank (4) and the nanofiltration water tank (5) both include: a raw water tank for storing water to be treated, a product water tank for storing treated purified water, and a concentrated water tank for storing concentrated wastewater. The raw water tank is provided with a raw water outlet, the concentrated water tank is provided with a concentrated water inlet, and the product water tank is provided with a purified water inlet. Both the reverse osmosis water tank (4) and the nanofiltration water tank (5) have raw water outlets inside their respective raw water tanks. The raw water outlets of the reverse osmosis water tank (4) and the nanofiltration water tank (5) are connected to the raw water inlets of the reverse osmosis membrane module and the nanofiltration membrane module respectively through inlet pipes (3). The concentrate outlet of the reverse osmosis membrane module is connected to the concentrate pipe (2), and the multiple concentrate pipes (2) of the reverse osmosis membrane module are connected to the concentrate inlet of the reverse osmosis water tank (4). The concentrate outlet of the nanofiltration membrane module is connected to the concentrate pipe (2), and the multiple concentrate pipes (2) of the nanofiltration membrane module are connected to the concentrate inlet of the nanofiltration water tank (5). The permeate outlet of the reverse osmosis membrane module is connected to the permeate pipe (1), and the multiple permeate pipes (1) of the reverse osmosis membrane module are connected to the permeate inlet of the reverse osmosis water tank (4). The permeate outlet of the nanofiltration membrane module is connected to the permeate pipe (1), and the multiple permeate pipes (1) of the nanofiltration membrane module are connected to the permeate inlet of the nanofiltration water tank (5). The control module (8) is electrically connected to multiple solenoid valves (9), multiple high-pressure variable frequency pumps (10), safety valves (12), check valves (13), multiple digital conductivity meters (14), multiple turbine flow meters (15), multiple digital pressure transmitters (16), multiple rotor flow meters (17), touch input / output module (7), and data acquisition module (11); the data acquisition module (11) is electrically connected to multiple solenoid valves (9), multiple high-pressure variable frequency pumps (10), safety valves (12), check valves (13), multiple digital conductivity meters (14), multiple turbine flow meters (15), multiple digital pressure transmitters (16), and multiple rotor flow meters (17).

2. The system according to claim 1, wherein the system is characterized in that: Multiple solenoid valves (9) are installed on the product water pipe (1), concentrate pipe (2) and inlet water pipe (3). High-pressure variable frequency pumps (10) are installed on the multiple inlet water pipes (3) connecting the reverse osmosis water tank (4) and the reverse osmosis membrane module. Safety valves (12) are installed on the multiple concentrate water pipes (2) connecting the reverse osmosis membrane module and the reverse osmosis water tank (4). Multiple check valves (13) are installed on the product water pipe (1) and the concentrate water pipe (2). A digital conductivity meter (14) is installed on each product water pipe (1). A turbine flow meter (15) is installed on each inlet water pipe (3) and the product water pipe (1). A digital pressure transmitter (16) is installed on each concentrate water pipe (2) and the inlet water pipe (3). A rotor flow meter (17) is installed on each concentrate water pipe (2).

3. The integrated cleaning system for reverse osmosis nanofiltration membrane modules according to claim 2, characterized in that: The touch input / output module (7) is used to receive external touch input and send the external touch input to the control module (8). The control module (8) is used to identify and judge the logged-in user, the membrane number to be tested entered by the operator, and the time period for testing the membrane to be tested based on the touch input, and generate the corresponding opening / closing commands for the solenoid valve (9), high-pressure variable frequency pump (10), safety valve (12), check valve (13), digital conductivity meter (14), turbine flow meter (15), digital pressure transmitter (16) and rotor flow meter (17), and generate control commands for the data acquisition module (11); The data acquisition module (11) is used to acquire data from the solenoid valve (9), high-pressure variable frequency pump (10), safety valve (12), check valve (13), digital conductivity meter (14), turbine flow meter (15), digital pressure transmitter (16) and rotor flow meter (17) according to the instructions sent by the control module (8).

4. The system of claim 3, wherein: It also includes a communication module, which is electrically connected to the control module (8) and the host computer for communication between the control module (8) and the host computer.

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