CN210448756U - Concentrated pretreatment systems of circulation water film - Google Patents
Concentrated pretreatment systems of circulation water film Download PDFInfo
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- CN210448756U CN210448756U CN201921364882.4U CN201921364882U CN210448756U CN 210448756 U CN210448756 U CN 210448756U CN 201921364882 U CN201921364882 U CN 201921364882U CN 210448756 U CN210448756 U CN 210448756U
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Abstract
The utility model discloses a circulating water film concentration pretreatment system, which comprises an automatic dosing system, a control center, a data acquisition system, a response surface method optimization system, a pH meter, a calcium hardness on-line monitor, a magnesium hardness on-line monitor and a silicate concentration on-line monitor; the input end of the data acquisition system is connected with the output end of the pH meter, the output end of the calcium hardness on-line monitor, the output end of the magnesium hardness on-line monitor and the output end of the silicate concentration on-line monitor, the output end of the data acquisition system is connected with the control center and the input end of the response surface method optimization system, the output end of the response surface method optimization system is connected with the control center and the dosing control system, the dosing control system is connected with the control end of a sodium carbonate metering pump, the control end of a sodium hydroxide metering pump and the control end of a magnesium agent metering pump in the automatic dosing system, and the system can realize the control of the dosing amount of the medicament based on a remote monitoring and.
Description
Technical Field
The utility model belongs to the technical field of thermal power plant's circulating water treatment, a concentrated pretreatment systems of circulating water film is related to.
Background
The circulating water discharge sewage is the most typical concentrated high-salinity wastewater with the largest water quantity, and is also one of the wastewater with the largest recycling difficulty of the thermal power plant. The main reasons are complex impurity components, high impurity content, poor water quality stability and easy scaling; on the other hand, the water quantity is large, and the treatment cost is high. When the waste water of the thermal power plant has the zero emission requirement, the waste water needs to be recycled after reverse osmosis desalination treatment. Scale-causing components such as concentrated high-concentration calcium ions, alkalinity, sulfate radicals, and silicates contained in the circulating water are liable to generate precipitates such as calcium carbonate and silicates. Although scale inhibitors are added into reverse osmosis inlet water, the supersaturation degree of insoluble salts is too high due to multiple times of concentration, and the occurrence of precipitation cannot be prevented by the reverse osmosis scale inhibitors alone, so that before entering a reverse osmosis system, complex softening pretreatment is required to reduce the saturation degree of the reverse osmosis system, the scale formation in the continuous concentration stage is mainly prevented, and the stability of water is improved.
At present, in a circulating water film concentration pretreatment system, the adding amount of a medicament needs to be determined through water quality detection, test, calculation and production operation, the workload is large, the consumed time is long, the optimal adding amount of various medicaments cannot be controlled according to real-time water quality monitoring, and the condition that a certain medicament is added too much or too little can be caused, so that the quality of effluent water of the system is not stable enough. And the removal rates of the pollutants are also influenced interactively among the various medicaments, so that the influence relationship among the various medicaments is difficult to determine through experiments, and therefore a model is needed to simulate the interactive influence rule of the medicaments and determine the optimal level value under the interactive influence. Meanwhile, the monitoring, control and management of the domestic existing wastewater treatment system are realized in a wastewater treatment workshop, and the control and management are realized in the modes of local control, remote control, automatic instrument control or central control centralized control and the like. However, for a power plant with limited talent investment and a large plant area, the original control management mode has the problems of large investment of operation managers, disordered management, incapability of real-time control and the like.
The response surface method model optimization is a statistical test design of an optimization process, a continuous variable surface model is established by adopting the method, factors influencing the reaction process and interaction of the factors are evaluated, an optimal level value is determined, the number of required test groups is relatively small, the time for generating the model can be saved, and the method is widely applied to other industries.
The intelligent control technology carries a cloud technology to realize remote control, any data on a mobile phone terminal can be controlled by any PC through a cloud end, required information of the user can be randomly called, or another mobile phone is used for logging in a cloud server through an ID (identity), if a processing system based on a remote monitoring and response curved surface method model can be developed, the problems in the prior art can be solved to a great extent, and then the corresponding technology is not involved in the existing published documents.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a concentrated pretreatment systems of circulating water film, this system can realize the control that the medicament adds the dose based on remote monitoring and response curved surface method model.
In order to achieve the above object, the circulating water film concentration pretreatment system of the present invention comprises an automatic dosing system, a control center, a data acquisition system, a response surface method optimization system, a pH meter for detecting pH of raw water at the data acquisition point, a calcium hardness on-line monitor for detecting calcium hardness of raw water at the data acquisition point, a magnesium hardness on-line monitor for detecting magnesium hardness of raw water at the data acquisition point, and a silicate concentration on-line monitor for detecting silicate concentration of raw water at the data acquisition point; the input end of the data acquisition system is connected with the output end of the pH meter, the output end of the calcium hardness on-line monitor, the output end of the magnesium hardness on-line monitor and the output end of the silicate concentration on-line monitor, the output end of the data acquisition system is connected with the control center and the input end of the response curved surface method optimization system, the output end of the response curved surface method optimization system is connected with the control center and the dosing control system, and the dosing control system is connected with the control end of a sodium carbonate metering pump, the control end of a sodium hydroxide metering pump and the control end of a magnesium agent metering pump in the automatic dosing system;
the control center is connected with a plurality of terminals.
The system also comprises a first data streaming center, a second data streaming center and a third data streaming center;
the data acquisition system is connected with the control center and the response surface method optimization system through a first data flow transmission center;
the output end of the response curved surface method optimization system is connected with the input end of the data response system, the output end of the data response system is connected with a third data flow transmission center and a control center through a second data flow center, and the third data flow transmission center is connected with the dosing control system.
The terminal comprises a PC end and a plurality of handheld terminals, wherein the control center is connected with the PC end and each handheld terminal.
The control center is connected with each terminal through the platform distribution node.
The utility model discloses following beneficial effect has:
the utility model discloses a concentrated pretreatment systems of circulating water film when concrete operation, data acquisition system passes through the pH meter, calcium hardness on-line monitoring appearance, magnesium hardness on-line monitoring appearance and silicate concentration on-line monitoring appearance detect the pH value of raw water, calcium hardness, magnesium hardness and silicate concentration, response curved surface method optimization system is according to the pH value, calcium hardness, magnesium hardness and silicate concentration calculation sodium carbonate, the medicine volume information of sodium hydroxide and magnesium agent, throwing control system is according to sodium carbonate, sodium carbonate measuring pump among the medicine volume information control automatic reagent feeding system of sodium hydroxide and magnesium agent, sodium hydroxide measuring pump and magnesium agent measuring pump, in order to adjust the sodium carbonate of adding in the raw water, the quantity of sodium hydroxide and magnesium agent, the detection volume and the controlled variable of simultaneous control center collection system, and utilize platform distribution node to give each terminal, the user can utilize each terminal to look over the operational aspect of system, the system has the advantages that remote monitoring and automatic addition of the medicament are realized, the stability of the effluent quality of the circulating water pretreatment system is ensured, the operation cost is reduced, the wastewater treatment effect is greatly improved, the safety and the reliability of production operation are guaranteed to the maximum extent, the operation management personnel are less in investment, convenient to manage, capable of controlling in real time and the like, the unified management of the wastewater treatment system of the thermal power plant is facilitated, and the operation cost can be saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The system comprises a pH meter 1, a calcium hardness on-line monitor 2, a magnesium hardness on-line monitor 3, a silicate concentration on-line monitor 4, a response surface method optimization system 5, an automatic dosing system 6, a data acquisition system 7, a first data flow transmission center 8, a data response system 9, a second data flow center 10, a sodium carbonate metering pump 11, a sodium hydroxide metering pump 12, a magnesium agent metering pump 13, a dosing control system 14, a third data flow transmission center 15, a control center 16, a terminal 17 and a platform distribution node 18.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the circulating water film concentration pretreatment system of the present invention comprises an automatic dosing system 6, a control center 16, a data acquisition system 7, a response surface method optimization system 5, a pH meter 1 for detecting pH of raw water at a data acquisition point, a calcium hardness on-line monitor 2 for detecting calcium hardness of raw water at the data acquisition point, a magnesium hardness on-line monitor 3 for detecting magnesium hardness of raw water at the data acquisition point, and a silicate concentration on-line monitor 4 for detecting silicate concentration of raw water at the data acquisition point; the input end of the data acquisition system 7 is connected with the output end of the pH meter 1, the output end of the calcium hardness on-line monitor 2, the output end of the magnesium hardness on-line monitor 3 and the output end of the silicate concentration on-line monitor 4, the output end of the data acquisition system 7 is connected with the control center 16 and the input end of the response curved surface method optimization system 5, the output end of the response curved surface method optimization system 5 is connected with the control center 16 and the dosing control system 14, and the dosing control system 14 is connected with the control end of the sodium carbonate metering pump 11, the control end of the sodium hydroxide metering pump 12 and the control end of the magnesium agent metering pump 13 in the automatic dosing system 6; a number of terminals 17 are connected to the control center 16.
The utility model also comprises a first data flow center 8, a second data flow center 10 and a third data flow center 15; the data acquisition system 7 is connected with the control center 16 and the response surface method optimization system 5 through the first data transmission center 8; the output end of the response surface method optimization system 5 is connected with the input end of the data response system 9, the output end of the data response system 9 is connected with a third data flow transmission center 15 and a control center 16 through a second data flow center 10, and the third data flow transmission center 15 is connected with a dosing control system 14.
The terminal 17 comprises a PC end and a plurality of handheld terminals, wherein the control center 16 is connected with the PC end and each handheld terminal; the control center 16 is connected to each terminal 17 through a platform distribution node 18.
The utility model discloses cause the main influence factor of reverse osmosis membrane scale deposit according to thermal power plant's circulating water: the optimal adding amount of sodium carbonate, sodium hydroxide/lime and magnesium agent is determined and adjusted in real time by a full-automatic on-line monitoring, response surface method optimization and automatic dosing system 6. The response surface method optimization system 5 obtains the calcium ion concentration, the magnesium ion concentration, the silicon concentration and the LSI index of the effluent and the chemical dosage model of sodium carbonate, sodium hydroxide and magnesium agent under different calcium ion concentrations, magnesium ion concentrations, silicon concentrations and pH values of the raw water according to a large number of early-stage experimental results.
During specific operation, the data acquisition system 7 detects the pH value, calcium hardness, magnesium hardness and silicate concentration of raw water through the pH meter 1, the calcium hardness on-line monitor 2, the magnesium hardness on-line monitor 3 and the silicate concentration on-line monitor 4, then sends the detected information to the control center 16 and the response curve surface method optimization system 5 through the first data flow center 8, the response curve surface method optimization system 5 calculates the dosing amount information of sodium carbonate, sodium hydroxide and magnesium agent according to the pH value, calcium hardness, magnesium hardness and silicate concentration, then sends the calculated dosing amount information of sodium carbonate, sodium hydroxide and magnesium agent to the control center 16 and the dosing control system 14 through the first data flow center 8, the dosing control system 14 controls the sodium carbonate dosing pump 11, the sodium hydroxide dosing pump 12 and the magnesium agent dosing pump 13 in the automatic dosing system 6 according to the dosing amount information of sodium carbonate, sodium hydroxide and magnesium agent, the amount of sodium carbonate, sodium hydroxide and magnesium agent added into raw water is adjusted, meanwhile, the control center 16 sends the received information to each terminal 17 through the platform distribution node 18, and each terminal 17 can check the operation parameters of the system in real time, wherein each terminal 17 is a PC (personal computer) terminal, a handheld device based on an Android operating system or a handheld device based on an ios operating system, and meanwhile, each terminal 17 stores and backups the detected amount and the controlled amount in the system for later reference.
It is required to explain, the utility model provides an each data biography flow center only involves the sending and receiving of data, the utility model provides a platform distribution node 18 carries out the distribution of data according to user's authority and system setting, the utility model provides a data response system 9 only relates to gathering and sending of data, the utility model provides a response curved surface method optimization system 5 is comparatively conventional prior art.
Claims (4)
1. A circulating water film concentration pretreatment system is characterized by comprising an automatic dosing system (6), a control center (16), a data acquisition system (7), a response surface method optimization system (5), a pH meter (1) for detecting the pH value of raw water at a data acquisition point, a calcium hardness on-line monitor (2) for detecting the calcium hardness of the raw water at the data acquisition point, a magnesium hardness on-line monitor (3) for detecting the magnesium hardness of the raw water at the data acquisition point and a silicate concentration on-line monitor (4) for detecting the silicate concentration of the raw water at the data acquisition point; the input end of a data acquisition system (7) is connected with the output end of a pH meter (1), the output end of a calcium hardness on-line monitor (2), the output end of a magnesium hardness on-line monitor (3) and the output end of a silicate concentration on-line monitor (4), the output end of the data acquisition system (7) is connected with a control center (16) and the input end of a response curve surface method optimization system (5), the output end of the response curve surface method optimization system (5) is connected with the control center (16) and a dosing control system (14), and the dosing control system (14) is connected with the control end of a sodium carbonate metering pump (11), the control end of a sodium hydroxide metering pump (12) and the control end of a magnesium agent metering pump (13) in an automatic dosing system (6);
the control center (16) is connected with a plurality of terminals (17).
2. The system according to claim 1, further comprising a first data flow center (8), a second data flow center (10) and a third data flow center (15);
the data acquisition system (7) is connected with the control center (16) and the response surface method optimization system (5) through the first data flow transmission center (8);
the output end of the response surface method optimization system (5) is connected with the input end of the data response system (9), the output end of the data response system (9) is connected with a third data flow transmission center (15) and a control center (16) through a second data flow transmission center (10), and the third data flow transmission center (15) is connected with a dosing control system (14).
3. The system according to claim 1, wherein the terminals (17) comprise a PC terminal and a plurality of handheld terminals, and wherein the control center (16) is connected to the PC terminal and the handheld terminals.
4. The system according to claim 1, wherein the control center (16) is connected to each terminal (17) via a platform distribution node (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921364882.4U CN210448756U (en) | 2019-08-21 | 2019-08-21 | Concentrated pretreatment systems of circulation water film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921364882.4U CN210448756U (en) | 2019-08-21 | 2019-08-21 | Concentrated pretreatment systems of circulation water film |
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| Publication Number | Publication Date |
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| CN210448756U true CN210448756U (en) | 2020-05-05 |
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| CN201921364882.4U Active CN210448756U (en) | 2019-08-21 | 2019-08-21 | Concentrated pretreatment systems of circulation water film |
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| CN (1) | CN210448756U (en) |
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2019
- 2019-08-21 CN CN201921364882.4U patent/CN210448756U/en active Active
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