CN-122006485-A - Method and device for controlling cleaning of reverse osmosis membrane

CN122006485ACN 122006485 ACN122006485 ACN 122006485ACN-122006485-A

Abstract

The application relates to the technical field of big data, in particular to a cleaning control method and device of a reverse osmosis membrane, wherein the method comprises the steps of collecting operation data and real-time operation data of a target reverse osmosis membrane system in historical target time; and determining a cleaning scheme of the target reverse osmosis membrane system according to the change trend so as to control a cleaning executor corresponding to the target reverse osmosis membrane system to execute the cleaning scheme according to the cleaning scheme. Therefore, the problems that in the related technology, a cleaning control method of the reverse osmosis membrane is dependent on manual experience and a fixed period, the cleaning time is easy to lag, the real-time state of membrane pollution cannot be responded dynamically, the membrane performance is deteriorated, the economy and the safety of a system are affected, and increasingly strict water quality standards, energy conservation and consumption reduction requirements are difficult to meet are solved.

Inventors

LI JUNZHUANG
ZHU YEQING
PAN YUN
WEI HAN
WANG TIANYU
XU HENGHUI
ZHU HAOTIAN

Assignees

国电环境保护研究院有限公司

Dates

Publication Date: 20260512
Application Date: 20260122

Claims (10)

1. The cleaning control method of the reverse osmosis membrane is characterized by comprising the following steps of: Collecting operation data and real-time operation data of a target reverse osmosis membrane system at historical target time; Acquiring the change trend of a target index in the target reverse osmosis membrane system at a future target time based on the operation data of the historical target time and the real-time operation data; And determining a cleaning scheme of the target reverse osmosis membrane system according to the change trend, so as to control a cleaning executor corresponding to the target reverse osmosis membrane system to execute the cleaning scheme according to the cleaning scheme.
2. The method of claim 1, wherein the collecting the operational data and the real-time operational data of the target reverse osmosis membrane system at the historical target time comprises: Collecting water quality parameters, membrane module operation indexes and module state information of the target reverse osmosis membrane system at the historical target time and the current moment; And determining the operation data of the historical target time and the real-time operation data based on the historical target time, the water quality parameter at the current moment, the membrane module operation index and the module state information.
3. The method of claim 1, wherein the obtaining the trend of the target indicator in the target reverse osmosis membrane system at the future target time based on the historical target time operation data and the real-time operation data comprises: Acquiring a time sequence dependency relationship, local characteristics and global characteristics of the target index based on the operation data of the historical target time and the real-time operation data; And determining the change trend by combining the time sequence dependency relationship, the local characteristic and the global characteristic.
4. The method as recited in claim 1, further comprising: Acquiring a water quality parameter change trend of the target reverse osmosis membrane system, intersegmental pressure drop curve fluctuation information and instantaneous concentration change information of the target reverse osmosis membrane system based on the operation data of the historical target time and the real-time operation data; Generating a pollution early warning prompt of the target reverse osmosis membrane system according to the water quality parameter variation trend, the intersegmental pressure drop curve fluctuation information of the target reverse osmosis membrane system and the instantaneous concentration variation information, and feeding back the pollution early warning prompt to a user of the target reverse osmosis membrane system.
5. The method of claim 1, wherein said determining a cleaning regimen for the target reverse osmosis membrane system based on the trend of change comprises: determining the cleaning time length, the cleaning dosage and the valve opening degree of the target reverse osmosis membrane system according to the change trend; and determining the cleaning scheme according to the cleaning time length, the cleaning dosage and the valve opening degree.
6. A cleaning control device for a reverse osmosis membrane, comprising: The acquisition module is used for acquiring the operation data and real-time operation data of the target reverse osmosis membrane system at the historical target time; the acquisition module is used for acquiring the change trend of the target index in the target reverse osmosis membrane system at the future target time based on the operation data of the historical target time and the real-time operation data; and the control module is used for determining a cleaning scheme of the target reverse osmosis membrane system according to the change trend so as to control a cleaning executor corresponding to the target reverse osmosis membrane system to execute the cleaning scheme according to the cleaning scheme.
7. The apparatus of claim 6, wherein the acquisition module comprises: the collection unit is used for collecting water quality parameters, membrane assembly operation indexes and assembly state information of the target reverse osmosis membrane system at the historical target time and the current moment; and the determining unit is used for determining the operation data of the historical target time and the real-time operation data based on the water quality parameters, the membrane component operation indexes and the component state information of the historical target time and the current moment.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the method of controlling the cleaning of a reverse osmosis membrane as claimed in any one of claims 1 to 5.
9. A computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor for implementing the method of controlling the cleaning of a reverse osmosis membrane according to any one of claims 1 to 5.
10. A computer program product comprising a computer program which, when executed, is adapted to carry out the method for controlling the cleaning of a reverse osmosis membrane according to any one of claims 1 to 5.

Description

Method and device for controlling cleaning of reverse osmosis membrane Technical Field The application relates to the technical field of big data, in particular to a cleaning control method and device for a reverse osmosis membrane. Background The reverse osmosis membrane technology has the advantages of simple operation, no secondary pollution and the like, and the pre-desalting link of the boiler makeup water of the thermal power plant is highly dependent on the reverse osmosis membrane technology. In the related art, management and cleaning of reverse osmosis membranes of a thermal power plant are mostly dependent on manual experience, and fixed-period cleaning strategies such as quaternary cleaning are adopted. However, in the related art, the cleaning control method of the reverse osmosis membrane, which depends on the manual experience and the fixed period, is easy to cause delay in cleaning time, cannot dynamically respond to the real-time state of membrane pollution, is easy to cause excessive (increased cost) or insufficient (accelerated scaling) cleaning agent due to water quality fluctuation, causes membrane performance degradation, and causes flux reduction and pressure difference increase caused by reverse osmosis membrane pollution (such as colloid deposition, metal oxide scaling, microorganism breeding and the like), so that the economical efficiency and the safety of a system can be directly affected, and the increasingly strict water quality standard and the energy-saving and consumption-reducing requirements are difficult to meet, so that the problem needs to be solved are urgent. Disclosure of Invention The application provides a cleaning control method and device for a reverse osmosis membrane, which are used for solving the problems that in the related art, the cleaning control method for the reverse osmosis membrane is dependent on manual experience and a fixed period, the cleaning time is easy to lag, the real-time state of membrane pollution cannot be responded dynamically, the membrane performance is deteriorated, the economical efficiency and the safety of a system are affected, and increasingly strict water quality standards, energy conservation and consumption reduction requirements are difficult to meet. An embodiment of the first aspect of the application provides a cleaning control method of a reverse osmosis membrane, which comprises the following steps of collecting operation data and real-time operation data of a target reverse osmosis membrane system at historical target time, obtaining a change trend of a target index in the target reverse osmosis membrane system at future target time based on the operation data and the real-time operation data of the historical target time, and determining a cleaning scheme of the target reverse osmosis membrane system according to the change trend so as to control a cleaning executor corresponding to the target reverse osmosis membrane system to execute the cleaning scheme according to the cleaning scheme. Optionally, in one embodiment of the application, the collecting the operation data and the real-time operation data of the target reverse osmosis membrane system at the historical target time comprises collecting the water quality parameter, the membrane assembly operation index and the assembly state information of the target reverse osmosis membrane system at the historical target time and the current moment, and determining the operation data and the real-time operation data of the historical target time based on the water quality parameter, the membrane assembly operation index and the assembly state information of the historical target time and the current moment. Optionally, in one embodiment of the present application, the acquiring the trend of the target index in the target reverse osmosis membrane system at the future target time based on the operation data of the historical target time and the real-time operation data includes acquiring a time sequence dependency relationship, a local feature and a global feature of the target index based on the operation data of the historical target time and the real-time operation data, and determining the trend of the target index in combination with the time sequence dependency relationship, the local feature and the global feature. Optionally, in one embodiment of the application, the method further comprises the steps of acquiring the water quality parameter change trend of the target reverse osmosis membrane system, the inter-segment pressure drop curve fluctuation information of the target reverse osmosis membrane system and the instantaneous concentration change information based on the operation data of the historical target time and the real-time operation data, generating a pollution early warning prompt of the target reverse osmosis membrane system according to the water quality parameter change trend, the inter-segment pressure drop curve fluctuation information of the targe