Intelligent management and control system for thermal power plant

Abstract

The invention relates to the field of intelligent production, in particular to an intelligent management and control system for a thermal power plant. The intelligent management and control integrated platform construction project comprises intelligent management and control integrated platform construction, data acquisition interfaces (an SIS system data interface, a vehicle management system data interface, a TSP environmental protection monitoring system data interface and a video stream data interface), indoor splicing screen installation, camera installation and matched server implementation. Environmental protection data of a whole plant are integrated through a data interface, environmental protection data monitoring and real-time early warning of the whole plant are achieved, and environmental protection data application value of a company is reflected and met through the functions of data storage integration, processing analysis, logic calculation, data visualization and the like, environmental protection standardized management of the company is improved, and the safety production management level is comprehensively improved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent production technology, and in particular to an intelligent management and control system for a thermal power plant. Background Art

[0002] In order to fully implement the arrangements for the industry's environmental performance to achieve A-level, the A-level standard for environmental performance in the thermal power industry clearly requires digital intelligent manufacturing to achieve intelligent management and control, and to achieve centralized control of production, monitoring and control, and governance facilities and comprehensive data analysis. Based on this, the company further integrates environmental protection business on the basis of the existing information system construction, fully integrates environmental protection real-time data, video surveillance, vehicle management, etc., realizes centralized control of production, monitoring and control, and governance facilities and comprehensive data query, eliminates the original system information islands, and provides strong data support for the company to build a smart enterprise. Summary of the invention

[0003] In view of the above problems, an embodiment of the present invention provides an intelligent management and control system for a thermal power plant.

[0004] An intelligent control system for a thermal power plant provided in an embodiment of the present invention includes an intranet server, an extranet server, a first industrial computer, a second industrial computer, an indoor splicing screen, a network camera, an access control system, a DCS for unit 1, and a DCS for unit 2; The DCS of Unit 1 and Unit 2 are used to collect key indicators of production facilities, organized emission indicators, key indicators of treatment facility operation, and energy consumption indicators, and to perform production control based on the collected parameters; The intranet server is connected to the DCS of Unit 1 and Unit 2 through the SIS system data interface to receive various indicators. The intranet server is also connected to the first industrial computer, which is connected to the indoor splicing screen. The first industrial computer receives various indicators integrated by the intranet server and displays them through the indoor splicing screen. The network camera is connected to the intranet server to collect the video stream data of the working conditions at the designated point in the field and upload it to the intranet server. The intranet server realizes local data storage and data interface, and displays the video stream data in real time on the indoor splicing screen through data decryption; The access control system is connected to the intranet server to manage, display and query the vehicles entering and leaving the site; The external network server is connected to the second industrial computer, the second industrial computer is connected to the indoor splicing screen, and the external network server builds a network and interconnects with the vehicle management system equipment on the external network to collect vehicle information and vehicle traffic records for data statistics and query; the external network server builds a network and interconnects with the TSP environmental monitoring equipment on the external network to collect TSP environmental monitoring data for data display and query.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows: the intelligent control and management integrated platform construction project includes the intelligent control and management integrated platform construction, data acquisition interface (SIS system data interface, vehicle management system data interface, TSP environmental monitoring system data interface, video stream data interface), indoor splicing screen installation, camera installation and supporting server implementation; the environmental protection data of the entire plant is integrated through the data interface to realize the environmental protection data monitoring and real-time early warning of the entire plant, and through the functions of data storage integration, processing analysis, logical calculation and data visualization, it reflects and meets the application value of the company's environmental protection data, improves the company's environmental protection standardization management, and comprehensively improves its safety production management level.

[0006] Optionally, the indoor splicing screen includes 12 indoor splicing screens, 6 of which are connected to the first industrial computer, and 6 are connected to the second industrial computer.

[0007] Optional, organized emissions indicators include: Particulate matter: The hourly average concentration of the boiler flue gas outlet is no more than 5 mg / m 3 The hourly average emission concentration of other dust-generating points shall not exceed 10 mg / m 3 ; Sulfur dioxide: hourly average emission concentration at boiler flue gas outlet, for units in service, no higher than 20 mg / m 3 , for new units, no higher than 10 mg / m 3 ; Nitrogen oxides: The hourly average emission concentration at the boiler flue gas outlet is not higher than 30 mg / m 3 ; W-type flame furnace coal-fired power generation boilers not more than 40 mg / m 3 , no higher than 30 mg / m during heavy pollution weather emergencies 3 ; Ammonia slip: The hourly average concentration of the flue gas emission outlet of the boiler shall not exceed 2.3 mg / m for coal-fired power generation boilers using SCR and SNCR-SCR. 3 , coal-fired power generation boilers using SNCR should not exceed 6.6 mg / m 3 .

[0008] Optionally, key indicators of production facilities include: boiler evaporation rate of Unit 1 and Unit 2, boiler oxygen content, unit load, induced draft fan current, boiler fuel feed rate, boiler MFT signal.

[0009] Optionally, governance settings run key indicators including: Desulfurization indicators: FGD inlet in Unit 1 and Unit 2: SO2, NOX, O2, flue gas flow, flue gas temperature, flue gas pressure, flue gas humidity; FGD outlet: SO2, NOX, O2, flue gas flow, flue gas temperature, flue gas pressure, flue gas humidity; slurry circulation pump status; slurry circulation pump current; slurry pump status; slurry pump current; slurry pH value in the desulfurization absorption tower; slurry level in the desulfurization absorption tower; slurry density in the desulfurization absorption tower; oxidation fan status; oxidation fan current; Denitrification indicators: Inlet of Unit 1 and Unit 2: NOX, O2, temperature, pressure, flow, humidity, NH3; outlet: NOX, O2, temperature, pressure, flow, humidity, NH3; dilution fan status; dilution fan current; regulating valve opening; Dust removal indicators: bag filter inlet temperature in Units 1 and 2; Monitoring point indicators: particulate matter, wind speed, and wind direction.

[0010] Optional energy consumption indicators include: power supply coal consumption, heating coal consumption, instantaneous heating capacity, power supply carbon emission intensity, heating carbon emission intensity, and coal sulfur content of Unit 1 and Unit 2.

[0011] Optionally, a pollution control technical data sharing library is established through the intranet server to upload, query and download the main technical data of pollution control; The main technical information included is as follows: (1) Dust removal technology: electrostatic dust removal, bag dust removal, electric bag dust removal, desulfurization synergistic dust removal, and wet dust removal after desulfurization; (2) Desulfurization technology: limestone-gypsum wet desulfurization, seawater desulfurization, etc.; (3) Denitrification technology: low-nitrogen combustion + selective catalytic reduction technology SCR, selective non-catalytic reduction + selective catalytic reduction combined technology SNCR-SCR; (4) Circulating fluidized bed boilers can use selective non-catalytic reduction technology SNCR or selective catalytic reduction technology SCR.

[0012] Optionally, a pollution prevention and control measures data sharing library is established through the intranet server to upload, query and download the main pollution prevention and control measures data; Establishing an environmental management system includes: organizational structure, management system, technical regulations, accident prevention and emergency response plans, personnel training, and assessment methods, etc., and realizing the functions of uploading, querying, and downloading data files; Establish special archives for coal purchase contracts, purchase ledgers and quality inspection reports, and realize functions of uploading, querying and downloading data files.

[0013] Optionally, environmental protection archive management is also established through the intranet server, including: (1) Environmental impact assessment approval document; (2) Pollutant discharge permit and quarterly and annual implementation reports; (3) Completion acceptance documents; (4) Operation and management procedures for waste gas treatment facilities; (5) Waste gas monitoring report within one year; Realize the functions of uploading, querying and downloading data files.

[0014] Establish clean transportation management, integrate data from the vehicle access control system within the factory, including vehicle information, vehicle records, and vehicle monitoring videos, and realize data query; Establish effect evaluation and realize the functions of uploading, querying and downloading monitoring and evaluation report data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute a limitation of the present invention. In the drawings: Figure 1 This is an architecture diagram of an intelligent control system for a thermal power plant provided by the present invention; Figure 2 A schematic diagram of the main monitoring screen of an intelligent control system for a thermal power plant provided by the present invention; Figure 3 The effect diagram of the organized discharge secondary page provided by the present invention; Figure 4 The secondary page effect diagram of the production DCS parameters provided by the present invention; Figure 5 The effect diagram of the secondary page of vehicle management data provided by the present invention; Figure 6 This is a rendering of the secondary page of TSP environment data provided by the present invention. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0017] An intelligent control system for a thermal power plant provided in an embodiment of the present invention includes an intranet server, an extranet server, a first industrial computer, a second industrial computer, an indoor splicing screen, a network camera, an access control system, a DCS for unit 1, and a DCS for unit 2; The DCS of Unit 1 and Unit 2 are used to collect key indicators of production facilities, organized emission indicators, key indicators of treatment facility operation, and energy consumption indicators, and to perform production control based on the collected parameters; The intranet server is connected to the DCS of Unit 1 and Unit 2 through the SIS system data interface to receive various indicators. The intranet server is also connected to the first industrial computer, which is connected to the indoor splicing screen. The first industrial computer receives various indicators integrated by the intranet server and displays them through the indoor splicing screen. The network camera is connected to the intranet server to collect the video stream data of the working conditions at the designated point in the field and upload it to the intranet server. The intranet server realizes local data storage and data interface, and displays the video stream data in real time on the indoor splicing screen through data decryption; The access control system is connected to the intranet server to manage, display and query the vehicles entering and leaving the site; The external network server is connected to the second industrial computer, the second industrial computer is connected to the indoor splicing screen, and the external network server builds a network and interconnects with the vehicle management system equipment on the external network to collect vehicle information and vehicle traffic records for data statistics and query; the external network server builds a network and interconnects with the TSP environmental monitoring equipment on the external network to collect TSP environmental monitoring data for data display and query.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the intelligent control and management integrated platform construction project includes the intelligent control and management integrated platform construction, data acquisition interface (SIS system data interface, vehicle management system data interface, TSP environmental monitoring system data interface, video stream data interface), indoor splicing screen installation, camera installation and supporting server implementation; the environmental protection data of the entire plant is integrated through the data interface to realize the environmental protection data monitoring and real-time early warning of the entire plant, and through the functions of data storage integration, processing analysis, logical calculation and data visualization, it reflects and meets the application value of the company's environmental protection data, improves the company's environmental protection standardization management, and comprehensively improves its safety production management level.

[0019] During implementation, the indoor splicing screen includes 12 indoor splicing screens, 6 of which are connected to the first industrial computer, and 6 are connected to the second industrial computer.

[0020] In implementation, organized emission indicators include: Particulate matter: The hourly average concentration of the boiler flue gas outlet is no more than 5 mg / m 3 The hourly average emission concentration of other dust-generating points shall not exceed 10 mg / m 3 ; Sulfur dioxide: hourly average emission concentration at boiler flue gas outlet, for units in service, no higher than 20 mg / m 3 , for new units, no higher than 10 mg / m 3 ; Nitrogen oxides: The hourly average emission concentration at the boiler flue gas outlet is not higher than 30 mg / m 3; W-type flame furnace coal-fired power generation boilers not more than 40 mg / m 3 , no higher than 30 mg / m during heavy pollution weather emergencies 3 ; Ammonia slip: The hourly average concentration of the flue gas emission outlet of the boiler shall not exceed 2.3 mg / m for coal-fired power generation boilers using SCR and SNCR-SCR. 3 , coal-fired power generation boilers using SNCR should not exceed 6.6 mg / m 3 .

[0021] During implementation, the key indicators of production facilities include: boiler evaporation volume of Units 1 and 2, boiler oxygen content (average value of 4 monitoring points), unit load, induced draft fan current, boiler fuel feed rate, and boiler MFT signal.

[0022] During implementation, key indicators of governance settings include: Desulfurization indicators: FGD inlet in Unit 1 and Unit 2: SO2, NOX, O2, flue gas flow, flue gas temperature, flue gas pressure, flue gas humidity; FGD outlet: SO2, NOX, O2, flue gas flow, flue gas temperature, flue gas pressure, flue gas humidity; slurry circulation pump status (5 circulation pumps per unit); slurry circulation pump current (5 circulation pumps per unit); slurry pump status (2 slurry pumps per unit); slurry pump current (2 slurry pumps per unit); slurry pH value in desulfurization absorption tower (two measuring points per unit); slurry level in desulfurization absorption tower (3 measuring points per unit); slurry density in desulfurization absorption tower (1 measuring point per unit); oxidation fan status (2 oxidation fans per unit); oxidation fan current (2 oxidation fans per unit); Denitrification indicators: Inlet of Unit 1 and Unit 2: NOX, O2, temperature, pressure, flow, humidity, NH3; outlet: NOX, O2, temperature, pressure, flow, humidity, NH3; dilution fan status; dilution fan current; regulating valve opening; Dust removal index: bag filter inlet temperature in Units 1 and 2 (4 chambers per unit, 4 measuring points per chamber); Monitoring point indicators: particulate matter, wind speed, wind direction (4 detectors in the whole factory).

[0023] During implementation, energy consumption indicators include: coal consumption for power supply, coal consumption for heating, instantaneous heating capacity, carbon emission intensity for power supply, carbon emission intensity for heating, and sulfur content in coal combustion of Units 1 and 2.

[0024] During the implementation, a pollution control technical data sharing library was established through the intranet server to enable uploading, querying and downloading of major technical data on pollution control; The main technical information included is as follows: (1) Dust removal technology: electrostatic dust removal, bag dust removal, electric bag dust removal, desulfurization synergistic dust removal, and wet dust removal after desulfurization; (2) Desulfurization technology: limestone-gypsum wet desulfurization, seawater desulfurization, etc.; (3) Denitrification technology: low-nitrogen combustion + selective catalytic reduction technology SCR, selective non-catalytic reduction + selective catalytic reduction combined technology SNCR-SCR; (4) Circulating fluidized bed boilers can use selective non-catalytic reduction technology SNCR or selective catalytic reduction technology SCR.

[0025] During the implementation, a pollution prevention and control measures data sharing library was established through the intranet server to enable uploading, querying and downloading of key pollution prevention and control measures data; Establishing an environmental management system includes: organizational structure, management system, technical regulations, accident prevention and emergency response plans, personnel training, and assessment methods, etc., and realizing the functions of uploading, querying, and downloading data files; Establish special archives for coal purchase contracts, purchase ledgers and quality inspection reports, and realize functions of uploading, querying and downloading data files.

[0026] During implementation, environmental protection archive management was also established through the intranet server, including: (1) Environmental impact assessment approval document; (2) Pollutant discharge permit and quarterly and annual implementation reports; (3) Completion acceptance documents; (4) Operation and management procedures for waste gas treatment facilities; (5) Waste gas monitoring report within one year; Realize the functions of uploading, querying and downloading data files.

[0027] Establish clean transportation management, integrate data from the vehicle access control system within the factory, including vehicle information, vehicle records, and vehicle monitoring videos, and realize data query; Establish effect evaluation and realize the functions of uploading, querying and downloading monitoring and evaluation report data.

[0028] Develop data API interfaces for each function, provide interface calls and data push in Http mode. At the same time, provide data interface entry to receive device and system data push, and support ModBus, RTU, TCP and other protocols for data reception.

[0029] Data interface development supports WebServices interface, SDK toolkit or API interface. Connect with third-party systems through WebServices standard interface, SDK toolkit or API interface. All system structured data such as SIS system data, video stream, vehicle management system, TSP environmental monitoring, etc. are connected to the data platform to realize all functions of the smart construction site system.

[0030] SIS system data interface Develop and implement the data collection intranet-side interface, which mainly collects the key environmental protection indicators and energy consumption indicators of the DCS of Units 1 and 2, and provides them to the intelligent management and control integrated platform for data display and query.

[0031] Video stream data interface Develop and implement the data collection intranet interface, mainly to collect camera monitoring video streams at designated points according to the requirements of Beijiao Thermal Power Branch, and provide them to the intelligent management and control integrated platform for real-time video monitoring and viewing.

[0032] Vehicle management system data interface Develop and implement the external network interface for data collection, build and interconnect with the vehicle management system equipment on the external network, collect vehicle information and vehicle traffic records, and provide them to the intelligent integrated management and control platform for data statistics and query.

[0033] TSP environmental monitoring system data interface Develop and implement the data collection external network interface, build and interconnect with the TSP environmental monitoring equipment on the external network, collect TSP environmental monitoring data, and provide it to the intelligent management and control integrated platform for data display and query.

[0034] The data interface of the vehicle management system and the data interface of the TSP environmental monitoring system need to be built in the factory, which involves wiring, trenching construction, etc. The network cable is required to use Category 6 double-shielded anti-interference gigabit copper wire (commercial version), and 24-core single-mode optical fiber is laid from the communication node to the computer room. The length depends on the actual situation.

[0035] Indoor splicing screen construction content The installation and construction of indoor splicing screen refers to the completion of the construction and installation of a set of indoor splicing screens in the designated monitoring room 407 of Beijiao Thermal Power Branch, which includes the installation of 12 splicing screens and supporting hardware, and the installation of 2 computers at designated locations on site (1 computer is deployed on the intranet side, and the other computer is deployed on the extranet side, controlling 6 screens respectively), and enabling the computer to view and control the camera, access the intelligent management and control integrated platform, and project the screen through software.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. An intelligent control system for a thermal power plant, characterized in that: Including intranet server, extranet server, first industrial computer, second industrial computer, indoor splicing screen, network camera, access control system, DCS of unit 1, DCS of unit 2; The DCS of Unit 1 and Unit 2 are used to collect key indicators of production facilities, organized emission indicators, key indicators of treatment facility operation, and energy consumption indicators, and to perform production control based on the collected parameters; The intranet server is connected to the DCS of Unit 1 and Unit 2 through the SIS system data interface to receive various indicators. The intranet server is also connected to the first industrial computer, which is connected to the indoor splicing screen. The first industrial computer receives various indicators integrated by the intranet server and displays them through the indoor splicing screen. The network camera is connected to the intranet server to collect the video stream data of the working conditions at the designated point in the field and upload it to the intranet server. The intranet server realizes local data storage and data interface, and displays the video stream data in real time on the indoor splicing screen through data decryption; The access control system is connected to the intranet server to manage, display and query the vehicles entering and leaving the site; The external network server is connected to the second industrial computer, the second industrial computer is connected to the indoor splicing screen, and the external network server builds a network and interconnects with the vehicle management system equipment on the external network to collect vehicle information and vehicle traffic records for data statistics and query; the external network server builds a network and interconnects with the TSP environmental monitoring equipment on the external network to collect TSP environmental monitoring data for data display and query.

2. The intelligent control system for thermal power plants according to claim 1, characterized in that: The indoor splicing screen includes 12 indoor splicing screens, 6 of which are connected to the first industrial computer, and 6 are connected to the second industrial computer.

3. The intelligent control system for thermal power plants according to claim 1, characterized in that: Organized emission indicators include: Particulate matter: The hourly average concentration of the boiler flue gas outlet is no more than 5 mg / m 3 The hourly average emission concentration of other dust-generating points shall not exceed 10 mg / m 3 ; Sulfur dioxide: hourly average emission concentration at boiler flue gas outlet, for units in service, no higher than 20 mg / m 3 , for new units, no higher than 10 mg / m 3 ; Nitrogen oxides: The hourly average emission concentration at the boiler flue gas outlet is not higher than 30 mg / m 3 ; W-type flame furnace coal-fired power generation boilers not more than 40 mg / m 3 , no higher than 30 mg / m during severe pollution weather emergencies 3 ; Ammonia slip: The hourly average concentration of the flue gas emission outlet of the boiler shall not exceed 2.3 mg / m for coal-fired power generation boilers using SCR and SNCR-SCR. 3 , coal-fired power generation boilers using SNCR should not exceed 6.6 mg / m 3 .

4. The intelligent control system for thermal power plants according to claim 1, characterized in that: Key indicators of production facilities include: boiler evaporation rate of Unit 1 and Unit 2, boiler oxygen content, unit load, induced draft fan current, boiler fuel feed rate, and boiler MFT signal.

5. The intelligent control system for thermal power plants according to claim 1, characterized in that: Key indicators of governance setting operation include: Desulfurization indicators: FGD inlet in Unit 1 and Unit 2: SO2, NOX, O2, flue gas flow, flue gas temperature, flue gas pressure, flue gas humidity; FGD outlet: SO2, NOX, O2, flue gas flow, flue gas temperature, flue gas pressure, flue gas humidity; slurry circulation pump status; slurry circulation pump current; slurry pump status; slurry pump current; slurry pH value in the desulfurization absorption tower; slurry level in the desulfurization absorption tower; slurry density in the desulfurization absorption tower; oxidation fan status; oxidation fan current; Denitrification indicators: Inlet of Unit 1 and Unit 2: NOX, O2, temperature, pressure, flow, humidity, NH3; outlet: NOX, O2, temperature, pressure, flow, humidity, NH3; dilution fan status; dilution fan current; regulating valve opening; Dust removal indicators: bag filter inlet temperature in Units 1 and 2; Monitoring point indicators: particulate matter, wind speed, and wind direction.

6. The intelligent control system for thermal power plants according to claim 1, characterized in that: Energy consumption indicators include: coal consumption for power supply, coal consumption for heating, instantaneous heating capacity, carbon emission intensity for power supply, carbon emission intensity for heating, and sulfur content in coal combustion.

7. The intelligent control system for a thermal power plant according to claim 1, characterized in that: A pollution control technical data sharing library is also established through the intranet server to enable uploading, querying and downloading of major technical data on pollution control; The main technical information included is as follows: (1) Dust removal technology: electrostatic dust removal, bag dust removal, electric bag dust removal, desulfurization synergistic dust removal, and wet dust removal after desulfurization; (2) Desulfurization technology: limestone-gypsum wet desulfurization, seawater desulfurization, etc.; (3) Denitrification technology: low-nitrogen combustion + selective catalytic reduction technology SCR, selective non-catalytic reduction + selective catalytic reduction combined technology SNCR-SCR; (4) Circulating fluidized bed boilers can use selective non-catalytic reduction technology SNCR or selective catalytic reduction technology SCR.

8. The intelligent control system for thermal power plants according to claim 1, characterized in that: A pollution prevention and control measures data sharing library is also established through the intranet server to enable uploading, querying and downloading of key pollution prevention and control measures data; Establishing an environmental management system includes: organizational structure, management system, technical regulations, accident prevention and emergency response plans, personnel training, and assessment methods, etc., and realizing the functions of uploading, querying, and downloading data files; Establish special archives for coal purchase contracts, purchase ledgers and quality inspection reports, and realize functions of uploading, querying and downloading data files.

9. The intelligent control system for a thermal power plant according to claim 8, characterized in that: Environmental protection file management is also established through the intranet server, including: (1) Environmental impact assessment approval document; (2) Pollutant discharge permit and quarterly and annual implementation reports; (3) Completion acceptance documents; (4) Operation and management procedures for waste gas treatment facilities; (5) Waste gas monitoring report within one year; Realize the functions of uploading, querying and downloading data files; Establish clean transportation management, integrate data from the vehicle access control system within the factory, including vehicle information, vehicle records, and vehicle monitoring videos, and realize data query; Establish effect evaluation and realize the functions of uploading, querying and downloading monitoring and evaluation report data.

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