CN111596621A - Intelligent water affair on-line monitoring, control and management system of thermal power plant - Google Patents
Intelligent water affair on-line monitoring, control and management system of thermal power plant Download PDFInfo
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- CN111596621A CN111596621A CN202010284051.7A CN202010284051A CN111596621A CN 111596621 A CN111596621 A CN 111596621A CN 202010284051 A CN202010284051 A CN 202010284051A CN 111596621 A CN111596621 A CN 111596621A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by quality surveillance of production
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32368—Quality control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to an intelligent water affair online monitoring, controlling and managing system of a thermal power plant, which comprises an integrated display module, a dynamic water balance module, a water quantity counting module, an equipment diagnosis module, a water quality analysis module, an early warning management module, an integrated benchmarking module and a chemical supervision module, can display and monitor the water affair condition of the whole plant on line in real time, master the water balance condition of the whole plant and each subsystem, the water consumption condition of a unit, the water consumption condition of each water affair system, the running condition of water using equipment, the water quality condition of plant water and the excellent condition of the water consumption condition of each unit according to the control and management system, and control and adjust the water affair system in a reasonable range. The invention realizes the intelligent diagnosis of the reverse osmosis pollution blocking degree of the chemical water treatment system, the intelligent judgment of the imbalance reason of the water using system and the intelligent and stable control of the concentration rate of circulating water.
Description
Technical Field
The invention relates to the technical field of intelligent water affairs, in particular to an intelligent water affair online monitoring, controlling and managing system for a thermal power plant.
Background
The thermal power plant as a large water consumer needs a large amount of water resources. The water supply monitoring and control of the thermal power plant are carried out, the reuse rate of water is improved, the fresh water consumption is reduced, the water saving is realized, and the method has important significance for the survival and development of the thermal power plant.
At present, key scientific and technical problems of large water consumption, high energy and material consumption, low water reuse rate, low intelligent level and the like of a thermal power plant are solved. With the rapid development of technologies such as mobile internet, cloud computing, big data and internet of things, the construction of an intelligent thermal power plant becomes a topic of a heat in the field of power generation. The research of key technology of intelligent water affairs of thermal power plant, as the miniature of wisdom thermal power plant, can make whole water affairs management intelligent, high-end, low carbonization. Therefore, an intelligent water affair online monitoring, control and management system for a thermal power plant is urgently needed to solve the problems that the reverse osmosis pollution blockage condition is difficult to diagnose in time, the reason of water system imbalance is difficult to diagnose, the high-level stable control of the concentration rate of circulating water is difficult to maintain and the like.
Disclosure of Invention
The invention aims to provide an intelligent water affair online monitoring, controlling and managing system for a thermal power plant, which realizes intelligent diagnosis of reverse osmosis pollution blocking degree of a chemical water treatment system, intelligent judgment of imbalance reasons of a water using system and intelligent and stable control of concentration rate of circulating water, and further realizes energy conservation and consumption reduction of the thermal power plant.
The invention provides an intelligent water affair online monitoring, controlling and managing system of a thermal power plant, which comprises:
the comprehensive display module is used for displaying the water balance of the whole plant, displaying the brief introduction of the water balance of the whole plant, displaying the water index of the unit and displaying the water balance form of the subsystem;
the dynamic water balance module is used for dynamically monitoring the water balance of the whole plant, the water balance of a water supply system, the water balance of a circulating water system, the water balance of an industrial wastewater system, the water balance of a chemical water production system, the water balance of a circulating water sewage treatment system, the water balance of a medium-low pressure service water system and the water balance of a desulphurization water system of the whole plant in real time and calculating and displaying the unbalance rate;
the water quantity counting module is used for displaying real-time balance, current day balance and historical balance data of a whole plant water system, a water supply system, a circulating water system, an industrial wastewater system, a chemical water production system, a circulating water sewage treatment system, a medium and low pressure service water system and a whole plant desulfurization water system in a table form in an online manner in real time;
the equipment diagnosis module is used for real-time online monitoring of the reverse osmosis equipment;
the water quality analysis module is used for looking up the change trend of the water quality of the unit in a user-defined period;
the early warning management module is used for carrying out statistical analysis on historical data generated by the online meters to obtain the upper and lower limit values of the display reading of each meter, and carrying out online early warning of flow and water quality monitoring according to the upper and lower limit values;
the comprehensive calibration module is used for carrying out comparative analysis on concentration multiplying power, water supplement amount and sewage discharge amount of a circulating water system, comparative analysis on water supplement amount of a desulfurization water system and comparative analysis on desalted water consumption, and adjusting the water supplement amount and the sewage discharge amount of the circulating water system on line according to a concentration multiplying power value;
and the chemical supervision module is used for monitoring, checking, adjusting, evaluating and performing related analysis and management on the quality, performance and indexes of water, steam, oil, gas and fuel in the power construction and production.
Further, the dynamic water balance module judges whether the water consumption of each system is normal or not according to the real-time unbalance value, transmits the judgment result to the remote diagnosis control platform and gives a judgment instruction, so that the operation personnel can adjust the instruction in real time according to the judgment result and adjust the unbalance value of each unit to be within a reasonable numerical range.
Further, the water quantity counting module displays the flow reading and the accumulated flow reading in real time.
Furthermore, the equipment diagnosis module judges the running state of the reverse osmosis equipment and the membrane fouling and blocking condition according to the change curves of the water yield and the desalination rate along with the running time under the standard state of the reverse osmosis system, so as to obtain the optimal on-line flushing and chemical cleaning period.
Further, the equipment diagnosis module predicts the service life of the reverse osmosis system according to the water production rate and the decline trend of the desalination rate and the water production cost under the standard state of the reverse osmosis system.
By means of the scheme, the intelligent water affair online monitoring, control and management system for the thermal power plant has the following technical effects:
1. and diagnosing whether the water balance value of each system is in a reasonable range on line, and intelligently judging the reason of the imbalance of the water system.
2. According to the change curves of the water yield and the desalination rate along with the operation time in the standard state of the reverse osmosis system, the operation state and the membrane fouling and blocking conditions of the reverse osmosis equipment can be judged, the optimal on-line flushing and chemical cleaning period is obtained, and the service life of the reverse osmosis system is reasonably predicted.
3. The stable control function of the concentration ratio of the circulating water of the power plant is realized.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram illustrating an application of an intelligent water-service online monitoring, control and management system of a thermal power plant according to the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, the present embodiment provides an intelligent water affair online monitoring, control and management system for a thermal power plant, which includes an integrated display module, a dynamic water balance module, a water amount statistic module, an equipment diagnosis module, a water quality analysis module, an early warning management module, an integrated benchmarking module, and a chemical supervision module.
The comprehensive display module has the functions of displaying the water balance of the whole plant, introducing the water balance of the whole plant, displaying the water use index of the unit and displaying the water balance table of the subsystem.
The dynamic water balance module has the functions of plant water balance, water supply system water balance, circulating water system water balance, industrial wastewater system water balance, chemical water production system water balance, circulating water sewage treatment system water balance, medium and low pressure service water system water balance, plant desulfurization water system water balance dynamic real-time monitoring and unbalance rate calculation and display, whether the water of each system is normal or not is judged according to the real-time unbalance rate value, the information is transmitted to the remote diagnosis control platform and a judgment instruction is given, and the operator adjusts the unbalance rate value of each unit to be within a reasonable numerical range according to the real-time regulation instruction, so that the problem of hysteresis of manually judging the unbalance rate at present is solved.
The water quantity counting module has the functions of displaying real-time balance, current day balance and historical balance of a whole plant water system, a water supply system, a circulating water system, an industrial wastewater system, a chemical water production system, a circulating water sewage treatment system, a medium-low pressure service water system and a whole plant desulfurization water system on line in real time by using a table, and can display flow readings and accumulated flow readings in real time.
The equipment diagnosis module has a real-time online monitoring function of the reverse osmosis equipment, and can judge the running state of the reverse osmosis equipment and the membrane fouling and blocking conditions according to the change curves of the water production rate and the desalting rate along with the running time in the standard state of the reverse osmosis system, so as to obtain the optimal online washing and chemical cleaning period. The service life of the reverse osmosis system is reasonably predicted by comprehensively considering the descending trends of the water production rate and the desalination rate and the water production cost under the standard state of the reverse osmosis system, and the problem that the reverse osmosis pollution and blockage condition of the existing intelligent water affair system is difficult to diagnose in time is solved.
The water quality analysis module has the function of looking up the change trend of the water quality of the unit in a user-defined period.
The early warning management system module has the function of carrying out statistical analysis on historical data generated by the on-line meters to obtain the upper and lower limit values of the display reading of each meter, so that the on-line early warning of flow and water quality monitoring is realized.
Synthesize and to mark the module and have the contrastive analysis function of circulating water system concentration multiplying power, moisturizing volume and blowdown flow, desulfurization water system moisturizing volume contrastive analysis function, demineralized water consumption contrastive analysis function, according to the concentration multiplying power value, through online adjustment circulating water system moisturizing volume and blowdown flow, under the prerequisite that the key that guarantees circulating cooling water system water conservation is not producing corruption and scale deposit scheduling problem, solved prior art and be difficult to maintain the high position stable control's of circulating water concentration multiplying power problem.
The chemical supervision module has the functions of monitoring, checking, adjusting, evaluating and related analyzing and managing the quality, performance and indexes of water, steam, oil, gas, fuel and the like in power construction and production.
Through this thermal power plant's wisdom water utilities on-line monitoring, control and management system, can realize that the intelligent diagnosis of the dirty stifled degree of chemical water treatment system reverse osmosis, intelligent judgement water system unbalance reason, the intelligent stable control of circulating water concentration multiplying power, and then realize thermal power plant's energy saving and consumption reduction.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a thermal power plant wisdom water utilities on-line monitoring, control and management system which characterized in that includes:
the comprehensive display module is used for displaying the water balance of the whole plant, displaying the brief introduction of the water balance of the whole plant, displaying the water index of the unit and displaying the water balance form of the subsystem;
the dynamic water balance module is used for dynamically monitoring the water balance of the whole plant, the water balance of a water supply system, the water balance of a circulating water system, the water balance of an industrial wastewater system, the water balance of a chemical water production system, the water balance of a circulating water sewage treatment system, the water balance of a medium-low pressure service water system and the water balance of a desulphurization water system of the whole plant in real time and calculating and displaying the unbalance rate;
the water quantity counting module is used for displaying real-time balance, current day balance and historical balance data of a whole plant water system, a water supply system, a circulating water system, an industrial wastewater system, a chemical water production system, a circulating water sewage treatment system, a medium and low pressure service water system and a whole plant desulfurization water system in a table form in an online manner in real time;
the equipment diagnosis module is used for real-time online monitoring of the reverse osmosis equipment;
the water quality analysis module is used for looking up the change trend of the water quality of the unit in a user-defined period;
the early warning management module is used for carrying out statistical analysis on historical data generated by the online meters to obtain the upper and lower limit values of the display reading of each meter, and carrying out online early warning of flow and water quality monitoring according to the upper and lower limit values;
the comprehensive calibration module is used for carrying out comparative analysis on concentration multiplying power, water supplement amount and sewage discharge amount of a circulating water system, comparative analysis on water supplement amount of a desulfurization water system and comparative analysis on desalted water consumption, and adjusting the water supplement amount and the sewage discharge amount of the circulating water system on line according to a concentration multiplying power value;
and the chemical supervision module is used for monitoring, checking, adjusting, evaluating and performing related analysis and management on the quality, performance and indexes of water, steam, oil, gas and fuel in the power construction and production.
2. The intelligent online water service monitoring, controlling and managing system of the thermal power plant as claimed in claim 1, wherein the dynamic water balance module determines whether the water consumption of each system is normal or not according to the real-time imbalance value, transmits the determination result to the remote diagnosis control platform and gives a determination instruction for an operator to adjust the imbalance value of each unit to a reasonable value range according to the real-time adjustment instruction.
3. The intelligent online water affair monitoring, controlling and managing system of the thermal power plant as claimed in claim 1, wherein the water volume statistic module displays the flow reading and the accumulated flow reading in real time.
4. The thermal power plant intelligent water affair online monitoring, control and management system of claim 1, wherein the equipment diagnosis module is used for judging the operation state of the reverse osmosis equipment and the membrane fouling and blocking condition according to the change curves of the water production rate and the desalination rate along with the operation time in the standard state of the reverse osmosis system, so as to obtain the optimal online flushing and chemical cleaning period.
5. The thermal power plant intelligent water affair online monitoring, control and management system according to claim 4, wherein the equipment diagnosis module predicts the service life of the reverse osmosis system according to the water production rate and the decline of the desalination rate and the water production cost under the standard state of the reverse osmosis system.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112836935A (en) * | 2021-01-07 | 2021-05-25 | 华电电力科学研究院有限公司 | Wisdom water affairs management platform suitable for power plant |
| CN113052718A (en) * | 2021-01-14 | 2021-06-29 | 北京朗新明环保科技有限公司 | Intelligent water affair platform |
| CN113551708A (en) * | 2021-07-21 | 2021-10-26 | 西安热工研究院有限公司 | Water balance evaluation and control method for wet flue gas desulfurization system of thermal power plant |
| CN113670536A (en) * | 2021-07-06 | 2021-11-19 | 浙江浙能台州第二发电有限责任公司 | Method for monitoring and informatization management of power and water utilization of thermal power plant |
| CN113902288A (en) * | 2021-10-08 | 2022-01-07 | 北京京能能源技术研究有限责任公司 | Management system and method for water resource regulation and control and operation |
| CN115093036A (en) * | 2022-07-19 | 2022-09-23 | 上海明华电力科技有限公司 | Intelligent water affair system for automatically controlling scale prevention of thermal power plant and implementation method thereof |
| CN117035240A (en) * | 2023-10-08 | 2023-11-10 | 华能山东发电有限公司烟台发电厂 | Monitoring and management method and system for water used in thermal power plant |
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| CN117035240A (en) * | 2023-10-08 | 2023-11-10 | 华能山东发电有限公司烟台发电厂 | Monitoring and management method and system for water used in thermal power plant |
| CN117035240B (en) * | 2023-10-08 | 2024-03-01 | 华能山东发电有限公司烟台发电厂 | Monitoring and management method and system for water used in thermal power plant |
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