CN101498468B - Intelligent monitoring system for boiler and heat exchange station - Google Patents

Intelligent monitoring system for boiler and heat exchange station Download PDF

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Publication number
CN101498468B
CN101498468B CN2009100773282A CN200910077328A CN101498468B CN 101498468 B CN101498468 B CN 101498468B CN 2009100773282 A CN2009100773282 A CN 2009100773282A CN 200910077328 A CN200910077328 A CN 200910077328A CN 101498468 B CN101498468 B CN 101498468B
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boiler
monitoring
subsystem
heat exchange
parameter
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CN2009100773282A
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CN101498468A (en
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方来华
吴宗之
魏利军
刘骥
康荣学
关磊
桑海泉
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中国安全生产科学研究院
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Abstract

The invention relates to an intelligent monitoring system for a boiler and a heat exchange station and a method thereof, which belong to the technical fields of production monitoring and security management. The system comprises a main system in a central control room, a plurality of boiler monitoring subsystems which are respectively connected with the main system in the central control room and a plurality of heat exchange station monitoring subsystems. The method comprises the following steps: parameters and video signals on site are collected and transmitted in real time and transmitted to a host machine in the central control room after being converted and compressed; the host machine carries out comprehensive processes of intelligent analysis, dynamic display, prewarning and warning and management for the received signals and transmit control commands to the monitoring subsystems to carry out control; and the monitoring subsystems can be cooperated with the central room to carry out monitoring or independently carries out monitoring to realize automatic control. The invention can realize real-time and dynamic intelligent control, prewarning and warning, security management and automatic monitoring for a large boiler or a boiler group and a heating network system and has the advantages of energy saving, consumption reduction, comprehensive analysis, safety, stability and economic operation.

Description

Boiler and heat exchange station intelligent monitor system

Technical field

The invention belongs to production monitoring and administrative skill field, particularly the real-time dynamic and intelligent method for supervising of boiler and heat exchange station operation.

Technical background

Central heating system is a multivariable, close coupling, strong jamming, the complex process system of large time delay, its complex structure, equipment is numerous, wherein, boiler, the piping network of boiler heat exchanger to the heat exchange station and auxiliary device thereof are (as sensor, controller, actuator, frequency converter, blower fan, valve and water pump etc.) the formation primary system, heat exchanger to hot user's piping network and auxiliary device thereof constitutes electrical secondary system, blower fan, equipment such as fire grate and water pump is the important component part of boiler, air blast is sent air into burner hearth, fire grate is sent coal into burner hearth and is burnt, air-introduced machine will produce flue gas and discharge body of heater, circulating pump is realized the circulation of water at piping network, small pump carries out moisturizing work when system's lack of water, boiler and heat exchange station are that central heating system is main, the part of most critical.Along with the central heating scale constantly increases, heating system power consumption height, heat supply network off-leveling, accident risk are big etc., and problem becomes increasingly conspicuous.Especially big-and-middle-sized central heating system, boiler group number is many, and heat exchange station distributes wide, and the load influence factor is many.The heat supply network off-leveling, indoor vertical detuning phenomena, promptly between each solitary building and the waterpower of heat supply between each floor of heat supply and heating power balance phenomenon very general, make many heating systems be in the operating mode operation of big flow, the low temperature difference, cause a large amount of energy wastes.When outside air temperature change and the different period to heat demand not simultaneously, promptly load variations needs in time to adjust the heat supply output of boiler, to reach energy-conservation purpose; When lack of water or heat supply network water yield generation leakage appear in boiler, need in time stop boiler or close respective valves, but traditional monitor mode can not be in real time, comprehensively, comprehensive various information is analyzed exactly, be difficult to the in time correct assessment heat demand variation and the function situation of boiler and heat exchange station, thereby cause and in time reasonably to regulate heat supply output, investigation fault difficulty, system's operation risk height.In the control of traditional boiler, use air door plate washer and valve to control the flow of air blast, air-introduced machine, small pump and circulating pump,, cause energy consumption height, equipment loss big because the rotating speed of blower fan, pump class can not in time adjust with load variations.Simultaneously, because shortage also can't in time be reported to the police and be handled the fault or the danger that occur in the system the real-time overall monitor and the safety analysis of boiler and each key point running status of heat network system.When the heat supply network load increases to when needing the collaborative monitoring of many boilers, only depend on the control of Artificial Control or boiler body more to be difficult to realize stable, the economical operation of total system.In this case, keep very difficulty of whole boiler and heating system long period, economy, stable operation, be difficult to control heating quality and purpose of energy saving, can't realize the steady safe operation of whole heating system optimum operating mode.

Summary of the invention

The objective of the invention is to overcome the deficiency of prior art and method, a kind of boiler and heat exchange station intelligent monitor system are proposed, can finish real-time dynamic surveillance, Based Intelligent Control, analysis-by-synthesis and the management of whole heating system, keep the heating power and the hydraulic equilibrium of heat supply network, reach heating according to need, energy-saving and cost-reducing, purpose of safe operation, thereby realize economy, safety, stable, the long-term operation of boiler and heat network system.

Boiler and heat exchange station intelligent monitor system that the present invention proposes is characterized in that this system is made up of with the monitoring boiler subsystem that links to each other with this central control room main system respectively and a plurality of heat exchange station subsystem the central control room main system;

Described central control room main system, be used for the monitoring boiler subsystem that receives, the Various types of data that each heat exchange station Monitor And Control Subsystem sends are handled, analyzed, calculate the information such as water cycle circulation timei, atmospheric temperature, user type, the variation of different times heat load of monitored primary system and electrical secondary system, the output regulated value sends to monitoring boiler subsystem and each heat exchange station subsystem in real time, and realizes Energy Saving Control with monitoring boiler subsystem and the collaborative monitoring of heat exchange station subsystem;

This monitoring boiler subsystem, be used for the processing that boiler temperature, pressure, liquid level, leaving water temperature, each parameter of pressure of gathering are calculated, stored, demonstration and heat output are analyzed, according to result and central control room main system and collaborative monitoring of heat exchange station subsystem or independent the monitoring;

Described heat exchange station Monitor And Control Subsystem after being used for the data of gathering are handled, is sent to central control room with data wirelessly; And with collaborative monitoring of main system and monitoring boiler subsystem or independent monitoring.

The present invention also proposes based on the boiler of said system and heat exchange station intelligent control method, it is characterized in that, described system comprises a plurality of Monitor And Control Subsystems mainly be made up of PLC (programmable logic controller (PLC)) switch board that are arranged on boiler room and each heat exchange station, be arranged on the monitoring main system of forming by a plurality of main frames of central control room, described each Monitor And Control Subsystem carries out communication by wired or wireless mode and central control room main system, and this method for supervising may further comprise the steps:

1) each Monitor And Control Subsystem is gathered boiler and heat exchange station parameter signal and vision signal in real time;

2) each Monitor And Control Subsystem carries out being transferred to the PLC switch board after the analog-to-digital conversion to the parameter signal of gathering, and changes step 3); The vision signal of being gathered after the encoded and compression, is sent to each main frame of central control room in wireless or wired mode, change step 4);

3) parameter signal of PLC switch board to receiving handled according to the workflow of setting, and output contains the execution of the control instruction enforcement of parameter controlling value to field apparatus, changes step 2); And the parameter signal that will receive and parameter controlling value send to each main frame of central control room in wireless or wired mode, changes step 4); Simultaneously, receive the information of central control room and each heat exchange station, work in coordination with monitoring;

4) after each main frame of central control room carries out analyzing and processing to the information that receives, carry out parameter monitoring and video monitoring respectively, the output controlling value also sends to the PLC switch board, changes step 3), changes step 5) simultaneously;

5) described central control room server carries out the network issue with the information that receives, and the user is through authorizing the telemonitoring of realizing boiler and heat exchange station by network.

Technical characterstic of the present invention and effect:

System of the present invention is divided into central control room main system, monitoring boiler subsystem and heat exchange station subsystem, between main, subsystem and independently of one another between subsystem, can finish the work of subsystem separately separately, can work in coordination with monitoring again.Each subsystem is according to flow process characteristics own, and comprehensive outdoor temperature, hot water circuit cycle, heat supply area size, building structure, class of subscriber, different time sections and period heat demand factors such as variation, set up corresponding model, carrying out analysis-by-synthesis and self adaptation regulates, and take energy-conservation measure such as frequency conversion, energy savings prolongs equipment life, improve heating quality and pipe network operation balance benefit, realize purposes such as heating according to need, energy-efficient and safe operation.By real-time monitoring to total system, can in time find the abnormal working position of system equipment and water supply race, emit, phenomenon such as leakage, in time find latent defect, reduce accident risk, be beneficial to and investigate thoroughly cause of accident and responsibility, improve operational reliability and security.The present invention provides total solution for boiler and heat exchange station system monitoring and management, can significantly improve the automatization level of boiler and heat exchange station operation and management, and energy-saving and cost-reducing, guarantee system reliability and security are of great significance.

Description of drawings

Fig. 1 is a system architecture diagram of the present invention.

Fig. 2 is a heat exchange station parameter monitoring structural representation.

Fig. 3 is the overall workflow figure of boiler intelligent method for supervising.

Fig. 4 is the workflow diagram that heat exchange station PLC switch board is implemented.

The specific embodiment

Boiler and heat supply network intelligent monitor system and method thereof that the present invention proposes reach embodiment in conjunction with the accompanying drawings and are described as follows:

Boiler of the present invention and heat supply network intelligent monitor system general structure as shown in Figure 1, this system is made up of with the monitoring boiler subsystem that links to each other with this central control room main system respectively and a plurality of heat exchange station subsystem (each heat exchange station is provided with a heat exchange station subsystem) the central control room main system;

Described central control room main system, be used for the monitoring boiler subsystem that receives, the Various types of data that each heat exchange station Monitor And Control Subsystem sends are handled, analyzed, calculate the information such as water cycle circulation timei, atmospheric temperature, user type, the variation of different times heat load of monitored primary system and electrical secondary system, the output regulated value sends to monitoring boiler subsystem and each heat exchange station subsystem in real time, and realizes Energy Saving Control with monitoring boiler subsystem and the collaborative monitoring of heat exchange station subsystem;

This monitoring boiler subsystem, be used for the processing that boiler temperature, pressure, liquid level, leaving water temperature, each parameter of pressure of gathering are calculated, stored, demonstration and heat output are analyzed, according to result and central control room main system and collaborative monitoring of heat exchange station subsystem or independent the monitoring;

Described heat exchange station Monitor And Control Subsystem after being used for the data of gathering are handled, is sent to central control room with data wirelessly; And with collaborative monitoring of main system and monitoring boiler subsystem or independent monitoring.Central control room main system of the present invention mainly comprises switch, respectively the parameter monitoring main frame that links to each other with this switch, video monitoring main frame, server, IP phone; The SMS module and the alarm that link to each other with the parameter main frame; The demonstration giant-screen that links to each other with described each main frame, server and switch by UPS (uninterrupted power source); The omnidirectional antenna that links to each other with switch by wireless router, and switch links to each other with the Internet/ private network by Intranet (having fire wall), connect by fire wall between in-house network and central control room, the ip voice phone links to each other with ordinary telephone set by voice gateways.Wherein:

Described parameter monitoring main frame is used for receiving, handle, statistics, analyze and demonstration monitoring boiler subsystem and the monitored process of each heat exchange station Monitor And Control Subsystem and the temperature of equipment, pressure, flow, liquid level, valve opening, equipment start-stop, parameter informations such as frequency conversion frequency, utilize these information and comprehensive outdoor temperature, the variation of different time sections heat demand waits each influence factor, make in real time and regulate boiler workbench number, optimum condition controlling value such as total output pressure in the primary system, relevant control instruction is sent to monitoring boiler subsystem and heat exchange station Monitor And Control Subsystem, collaborative its work, when abnormality such as boiler superpressure warning takes place in the system, output order triggers alarm work, finishes the functions such as information interaction with equipment such as other main frames simultaneously.

Described video monitoring main frame is used to receive, handles, the video image information at demonstration, query monitor scene, video camera is realized by main frame operations such as rotations, focusing are with the tour of realization to on-the-spot wider scope.

Described server is mainly used in the backup, network information issue of the relevant information of important parameters, video, management etc.

Described demonstration large-size screen monitors are mainly used in the demonstration of each host information, and each main frame all can be shown to its displaying contents switching on the large-size screen monitors and show.

Described switch is mainly used in the information communication of finishing equipment such as main frame.

Described ip voice phone is mainly used in communications such as staff and enterprises and outside dispatch, warning.

Described voice gateways are used for the conversion of voice signal.

Described fire wall is mainly used in each main frame of protection main system, takes precautions against attacks such as illegal invasion and virus.

Described SMS module is used for the warning message in the main frame is sent to the related personnel.

When described UPS is used for taking place outage,, normally moves and close with the assurance system for main system provides the power supply of certain hour.

Described wireless router is mainly used in functions such as the communication, route of wireless signal.

Described all fronts antenna is used for the transmission and the reception of the omnibearing wireless signal of level.

The operation principle of central control room main system: omnidirectional antenna receives parameter, the video information from each heat exchange station subsystem remote monitoring zone; Information transfers to the network that each main frame, server are formed by wireless router, and each main frame and server are connected to switch; The boiler subsystem carries out communication with wired mode and central control room main system; Utilize in the central control room monitoring boiler subsystem that receives, Various types of data that each heat exchange station Monitor And Control Subsystem sends to handle (as gross heat input calculating etc.), analyze (if any the water leakage etc.), information such as water cycle circulation timei of comprehensive primary system and electrical secondary system, atmospheric temperature, user type (office, dwelling house, hospital etc.), the variation of different times heat load, the output regulated value sends to monitoring boiler subsystem and each heat exchange station subsystem in real time, and the collaborative monitoring of central control room and monitoring boiler subsystem and heat exchange station subsystem realizes Energy Saving Control; Simultaneously, various information such as the parameter that collects, video are shown, add up, inquire about, manage; Realize interconnected in the central control room between each main frame, recalls information or trigger other main frames and produce response (as the interface of automatic ejection alarm region parameter or video) each other, information on the main frame all can show by switching on the central control room liquid crystal giant-screen, alarm links to each other with main frame, trigger warning by monitoring host computer, parameter monitoring early warning main frame also sends to warning message by SMS module related personnel's mobile phone.In central control room connect by Intranet with Office Area, upper management department, fire wall is set to prevent invasion such as virus between network.

The method embodiment that Energy Saving Control is carried out in the collaborative monitoring of central control room main system and monitoring boiler subsystem and heat exchange station is as follows: utilize the primary system that receives always to go out, the temperature difference of return water temperature, each electrical secondary system goes out, the return water temperature temperature difference and system's design temperature difference compare, the coupling system hot water circuit time cycle, different time sections and period heat demand information such as variation, and (model comprises water outlet of heat exchange station secondary and backwater temperature difference model to utilize boiler and heat exchange station heat model, the total amount of heat model that the heat exchange station primary system is confessed, the heat exchange station secondary goes out, return water temperature theoretical value model, the boiler subsystem is total confess heat and each heat exchange station subsystem heat relational model and boiler subsystem total confess heat and boiler body relational model), the central control room main system generates the operational factor curve that level and smooth flow and temperature rise or descend automatically, the output regulated value exports regulating command to PLC (programmable logic controller (PLC)) through computing for the heat exchange station subsystem, PLC exports controlling value, by the adjusting of actuating equipment realization to system's total flow and temperature.The central control room main system always goes out by gathering primary system, pressure of return water, temperature, automatically generate constant pressure making up water running curve according to system pipeline design pressure, design volume and the temperature of water and the characteristic of volume, controlling value is transferred to monitoring boiler subsystem and heat exchange station subsystem, and each subsystem is regulated the control of the rotating speed realization of small pump to system pressure automatically by the frequency converter of actuating equipment; In like manner, the blower variable frequency device of actuating equipment, air-introduced machine frequency converter, fire grate frequency converter are also along with variations such as thermic loads, receive the instruction of monitoring boiler subsystem, automatically carry out variable frequency adjustment, thereby realize purposes such as energy-saving and cost-reducing, heating according to need and minimizing equipment loss in each link of monitored system.

It is as follows that above-mentioned each model embodies formula:

Water outlet of heat exchange station secondary and backwater temperature difference model are

ΔT=K11.f(Tmin,Temp)+B……………………………………………………………(1)

In the formula, K1 is and building character, the secondary flow correction factor relevant with area of heat-supply service that Temp is an outdoor temperature with B1.

The total amount of heat Qi model that the heat exchange station primary system is confessed is

Qi(K、T11、T12、α)=K3.f(ΔT)+B3…………………………………………….(2)

The heat exchange station secondary goes out, return water temperature theoretical value model is

TCsv=K2.f(ΔT)+B2……………………………………………………………………(3)

THsv=K3.f(ΔT)+B3……………………………………………………………………(4)

Qi is the comprehensive function of multiple factor, and influence factor mainly comprises flow, and the heat exchanger coefficient of heat transfer, primary system advance, return water temperature.In the formula, α is this heat exchange correction factor.K is the triple valve aperture, it is the control parameter of primary side flow, T11, T12 are that the heat exchange station primary system advances, return water temperature, Δ T is that the heat exchange station electrical secondary system is advanced backwater temperature difference, TCsv and THsv are respectively the temperature theoretical values that secondary goes out, backwater can guarantee user's heat, and K2, B2 are relevant coefficients such as building structure with K3, B3.

Set up above model, can heat exchanging station subsystem automatically adjust, as when with secondary return water temperature T22 when controlling parameter: when | T22-THsv|>A, wherein A is a temperature difference control accuracy.By regulating the electric three passes valve opening, make | T22-THsv|<A, if K=Kmax, THsv-T22>A, when the electric three passes valve opening was described for maximum, heat can't guarantee that still the central control room main system changes the parameter of boiler subsystem by the model of setting up, control flow or a water temperature, realize T22 and THsv dynamic equilibrium (also can by once or the secondary valve regulate).

The boiler subsystem is total confesses heat Qz and each heat exchange station subsystem heat Qi (K, T11, T12, α) relational model

Qz∝∑Ki.Qi(K、T11、T12、α)……………………………………………………(5)

Ki is respectively for the heat exchange station correction factor in the formula, with this heat exchange station apart from boiler centre distance L, heat exchange station user type (as hospital etc., require to be higher than general standard, can revise) by given Ki value

The boiler subsystem is total confesses heat Qz and boiler body relational model

Qz=∑βi.f(n、F、Tzc、Tzh)+∑li.γi……………………………………………(6)

β, n, F, Tzc, Tzh, l, γ are respectively efficient, unlatching platform number, total flow, total leaving water temperature, total return water temperature, heat supply network total length and the heat loss factor etc. of boiler in the formula.

Tzc, Tzh are when deciding parameter, to be by fire grate fltting speed V, coal seam thickness L, the isoparametric function of calorific value M at each subsystem requirements heat, so

Qz∝f(Tzc、Tzh)∝f(V、L、M)………………………………………………………(7)

Above-mentioned central control room main system capital equipment embodiment and technical parameter are:

The parameter monitoring main frame adopts the NORCO-510DT of North China industry control, important technological parameters: CPU T2500, in save as DDR21G, hard disk is 250G, network interface 10M/100M self adaptation, 4 PCI, 4 PCI-Ex1,1 PCI-Ex4,1 PCI-Ex1 slot.

The video monitoring main frame adopts the HB-2000P of North China industry control, important technological parameters: CPU Intel 2.5G, in save as 2 DDR 1G, hard-disk capacity is 800G, and CD-ROM drive is 16XDVD, and operating temperature is 0~60 ℃, 2 of Ethernet interface 10M/100M self adaptations, 4 in USB mouth, 1 of serial ports.

Server adopts the perfectly sound T280 S5110 tower server of association, important technological parameters: CPU 2.0G; In save as 1GB; Hard disk is 4 * 200GB; Windows 2003 Server operating systems are installed.

Alarm adopts the XH-S24 audible-visual annunciator, and important technological parameters: operating voltage is 24VDC, and operating current is≤60mA; Chimes of doom is arbitrarily downgraded and is that 〉=85dB, guide number are frequency 〉=30-45 time/minute, intensity 〉=30cd.

Show that large-size screen monitors adopt the celestial PD70H1 liquid crystal display of looking electronics, important technological parameters: size (mm) be 1708 (h) * 1030 (v) * 150 (d), resolution ratio is 1920 * 1080, input interface CVBS, YPbPr, HDMI, VGA, brightness is 600cd/m 2

Switch adopts and grinds magnificent webmaster type Ethernet switch EKI-7559SI, important technological parameters: operating voltage is 12-48VDC, 2 single-mode fiber interfaces, 8 fastethernet interfaces, management can be undertaken by Web, Telnet, serial ports control, Windows program, safety can be finished by IP/MAC and port binding, Dynamic Host Configuration Protocol server, IP access list, 802.1X, SNMPv3, the output of No. 1 relay.

The IP phone machine adopts the explosion-proof IP phone of DMR-CP01 of Shenzhen networking telephone company, and important technological parameters: connected mode had both been supported static state/dynamic IP addressing, also supported PPPoE, 1 WAN Ethernet interface and 1 LANWAN Ethernet interface; 1 PSTN interface meets G.16516ms echo cancelltion.

Voice gateways adopt the century CNG2000 of Netcom ip voice gateway, important technological parameters: the FXS interface, and 4 of ports, agreement is supported HTTP, DHCP, FTP and IEEE 802.1q etc.

SMS module adopts the Sang Rong Saro310 GSM Modem of company, important technological parameters: chip adopts SiemensTC35i, and operating voltage is 5~35VDC, and interface is RS232/485, supports GSM and GPRS network, uses SIM.

Wireless router adopts U.S.'s Lucent ORiNOCO RG-1000 COR wireless router, and important technological parameters: working frequency range is 2.4GHz, and maximum distance can transmit 16km, and peak transfer rate is 11M, and operating voltage is 12VDC.

Omnidirectional antenna adopts HQJ-2400H9, and important technological parameters: frequency is 2.4G, gains to be that 18dBi, vertical plane lobe width are 14, and the horizontal plane lobe width is 360, standing-wave ratio≤1.5, and peak power is 100W, channel bandwidth is 60M.

UPS adopts the SUVT40KHS of APC, and important technological parameters: type is the online interaction formula, and the specified 40kva that is output as, input voltage are 304-477V, and incoming frequency is 47/70Hz, and output voltage is 230/400V, and output frequency is 47/53Hz.

Fire wall adopts the FVS318 of NETGEAR, and important technological parameters: type is the VPN fire wall, and the network port is 1 10/100M self adaptation wan interface, and number of users is 253, and intrusion detection is DoS, and control port is RS-232.

Monitoring boiler subsystem of the present invention comprises operator station, many the PLC switch boards that link to each other with operator station and the instrument console of corresponding number (PLC switch board quantity and monitored boiler pedestal number are identical), every instrument console links to each other with an alarm with a PLC switch board, links to each other with every PLC switch board and is arranged on the parameter acquisition equipment and the actuating equipment of every boiler appropriate location; The video camera, the video server that link to each other with operator station by UPS; This video camera links to each other with video server; Operator station, video server link to each other with the central control room switch.

This parameter acquisition equipment comprises that outdoor temperature sensor, discharge pressure sensor, pressure of return water sensor, leaving water temperature sensor, return water temperature sensor, flue gas contain oxygen detection, burner hearth oxygen content detector, flowmeter, fire box temperature sensor, exhaust gas temperature sensor, combustion chamber draft sensor, blower export pressure sensor, air-introduced machine pressure sensor; This actuating equipment comprises magnetic valve, blower variable frequency device, air-introduced machine frequency converter, fire grate frequency converter, pump variable frequency device; This magnetic valve, frequency converter link to each other with separately air blast, air-introduced machine, fire grate and water pump in the boiler respectively; The instrument console is by parts such as Displaying Meter, alarm lamp, buttons.

Described PLC switch board is used for conversion, processing and the data communication of signal, mainly is made up of PLC, EM serial expanded module and Communication processor CP.

Described operator station is used for receiving, handles, shows oxygen content, flow, boiler water level, goes out various information such as return water temperature, water pump start and stop state, and carry out analysis-by-synthesis in conjunction with data pair information such as current temperature, times, heat demand, boiler operatiopn platform number etc. is calculated, each boiler operatiopn state is carried out real-time assessment, early warning and alarming and control automatically.

Described instrument console is used for the instrument demonstration and reports to the police, and when switching to manual mode (as operator station fault or communicating terminal), the staff can control boiler by the instrument console; When switching in auto state, only show and report to the police.

Described parameter acquisition equipment is used for temperature, pressure, flow, the isoparametric collection of oxygen content.

Described actuating equipment is used for the enforcement of action such as the change of by-pass valve control aperture, electric machine frequency; Motor input voltage frequency is changed according to load variations,, reduce equipment loss with saves energy consumption.

Described video camera is used for the collection site video image.

Described video server is used for the conversion of vision signal.

Sound and light alarm when described alarm is used for parameter above setting threshold, the prompting staff.

The operation principle of monitoring boiler subsystem is: parameter acquisition equipment with boiler temperature, pressure, liquid level, leaving water temperature, pressure and other parameters collection, be transferred to PLC switch board and instrument console and show and handle, PLC handles the data of receiving, and be transferred to operator station, operator station to information store, show, analysis such as calculating and heat output, the monitoring boiler subsystem can be worked in coordination with monitoring with central control room main system and heat exchange station subsystem, also can independently monitor; During collaborative monitoring, operator station is sent to central control room with relevant information, and central control room main frame comprehensively information such as each heat exchange station comes next step control of integrated treatment boiler to adjust, and sending controling instruction (as changing boiler startup platform number etc.) is to operator station; If the central control room main frame breaks down or during other abnormal conditions, the monitoring boiler system can independently monitor, and is finished the monitoring of boiler jointly by PLC and operator station; The monitoring boiler subsystem can be set to control automatically and manually control two kinds of working methods, if automated manner, operator station receive from behind the signal of PLC through computing, send command adapted thereto to PLC, PLC receives relevant information and calculates, the instruction of output corresponding actions, actuating equipments such as control magnetic valve, motor; When operator station or PLC broke down, subsystem automatically switched to manual mode, and the staff can operate the controls such as start and stop of boiler the enterprising pedestrian worker of instrument console; Video camera in this subsystem arrives video server with video image acquisition, video server is to encode compression and be transferred to central control room with wireless mode of signal, and video server receives instruction from central control room and realizes adjusting and control to camera pan-tilt and focal length.

The capital equipment embodiment and the technical parameter thereof of above-mentioned monitoring boiler subsystem are as follows:

Operator station adopt to adopt the NORCO-510DT of North China industry control in the present embodiment, important technological parameters: CPU 2.5G, in save as DDR2 1G, hard disk is 250G, CD-ROM drive DVD, plate carry 1 1000M, 4 PCI, 4 PCI-Ex1,1 PCI-Ex4,1 PCI-Ex1 slot.

PLC adopts the S7-300 of Siemens, and important technological parameters is: processor is CPU 313C, and operating voltage is 24V, and the digital quantity input template is SM 321, and the digital quantity output template is SM 322, and analog quantity input and output template is SM 335.

Outdoor temperature sensor adopts the auspicious stone TE500F2A1A of Shenzhen's lattice sensor, important technological parameters: temperature measurement range be-40 ℃ to 105 ℃, be output as 4-20mA, supply voltage is 24VDC.

Water outlet, pressure of return water sensor adopt the JYB-KO-HAG type of the Kunlun seashore, and important technological parameters: range is 0-10MPa, is output as the 4-20mA current signal, and supply voltage is 24VDC.

Water outlet, return water temperature sensor adopt the JWB type integrative temperature transmitter of the Kunlun seashore, and important technological parameters: range is 0-200 ℃, is output as the 4-20mA current signal, and supply voltage is 24VDC.

Flue gas, burner hearth oxygen content detector adopt German MESA oxygen content sensor, important technological parameters: temperature range is 0-1050 ℃, output signal: 0-1300mV, reaction speed 1 second.

Flowmeter adopts the LUGB type full packages formula vortex-shedding meter of the Kunlun seashore, and important technological parameters: precision is 1%, and output signal is 4-20mA, and supply voltage is 24VDC.

Fire box temperature sensor and exhaust gas temperature sensor adopt the JWB/S integrative temperature transmitter of the Kunlun seashore, and important technological parameters: range is 0-1300 ℃, is output as the 4-20mA current signal, and supply voltage is 24VDC.

The combustion chamber draft sensor adopts the PTP708-h negative pressure sensor of Guangdong topology electronics corporation, important technological parameters: range is 100KPA~10KPA~0KPA, synthesis precision is 0.5%FS, 1.0%FS, and output signal is 4~20mA, and supply voltage is 24VDC (9~36VDC).

Blower export pressure sensor, air-introduced machine pressure sensor adopt the JYB-KO-MA type pressure transmitter of the Kunlun seashore, and important technological parameters is: range is 0-1MPa, is output as the 4-20mA current signal, and supply voltage is 24VDC.

Magnetic valve adopts the VB7000 series electric T-shaped valve of Hebei with power Self controlling valve company, and important technological parameters: maximum medium temperature is 120 ℃, and operating voltage is 200VAC, and the valve body pressure-bearing is 1.6MPa.The frequency converter of air blast, air-introduced machine, fire grate, circulation/small pump all adopts the FRENIC5000VG7S of Fuji Series Frequency Converter, important technological parameters: the high-performance vector controlled, and the input power supply is three-phase 220V-230V, 50-60Hz, carrier frequency are 0.75-15.

Video camera adopts outstanding look the ST-Y22XA color infrared one video camera that reaches, important technological parameters: image-forming component 1/4 " SONY CCD, infrared lamp are IR LED, 60PCS/14U/F8, the infrared radiation distance is 100m, minimal illumination 0Lux.

Video server adopts the huge scientific and technological JRS-1 network video server that melts, important technological parameters: input video is input as 1.0V (P-P), 1 road BNC, input voltage 12VDC/1A, embedded Web Server supports IE to monitor, dispose, upgrade, support the NTSC/PAL composite video, the 10/100M Ethernet interface is supported the RS485 interface, supports long-range cradle head control; Decoder wherein adopts huge pan and camera decoder of melting the JR-A (W) of science and technology, important technological parameters: the design of PIC series monolithic, double interface communication, driving voltage is 12~15VDC, the identification various protocols, The Cloud Terrace 8 orientation and control automatically, lens function control.

Alarm adopts the LA-P23 audible-visual annunciator, and important technological parameters: rated operational voltage is DC12V, and operating temperature is-30~85 ℃, and the acoustic pressure scope is 105dB ± 3dB (in the 2m).

Each heat exchange station Monitor And Control Subsystem of the present invention is by the PLC switch board, parameter acquisition equipment and actuating equipment link to each other with the PLC switch board, the switch that links to each other with the PLC switch board, the video server that links to each other with switch, wireless router, the unidirectional antenna that links to each other with wireless router, the video camera that links to each other with video server.

This parameter acquisition equipment comprises temperature sensor and pressure sensor, outdoor temperature sensor and the flowmeter of primary system temperature sensor, pressure sensor, electrical secondary system; Actuating equipment comprises three-way solenoid valve, the frequency converter that links to each other with circulating pump/small pump in the electrical secondary system.

Described each PLC switch board is used for conversion, processing and the data communication of heat exchange station signal.

Described parameter acquisition equipment is used for the collection of temperature, pressure and other parameters.

Described three-way solenoid valve be used for controlling primary system valve various flows to aperture.

Described frequency converter is used for the electric machine speed regulation of circulating pump or small pump and energy-conservation.

Described wireless router is used for the transmission and the route of signal.

Described unidirectional antenna is used for fixing the emission and the reception of wireless signal in the angular range.

Equipment purposes such as described switch, video server, flowmeter, video camera are identical with the monitoring boiler subsystem.

The operation principle of heat exchange station Monitor And Control Subsystem is: sensors such as temperature, pressure, frequency converter and magnetic valve are transferred to the PLC switch board with the related data collection, and PLC handles the data of receiving, wirelessly data are sent to central control room; This subsystem can be worked in coordination with monitoring with main system and monitoring boiler subsystem, also can independently monitor; During collaborative the monitoring, COMPREHENSIVE CALCULATING was handled after central control room received information, and control instruction is sent to the heat exchange station subsystem, and PLC receives relevant information, as calculated, and the instruction of output corresponding actions, actuating equipments such as by-pass valve control, motor; This subsystem can independently be monitored.

The parameter monitoring workflow of heat exchange station Monitor And Control Subsystem as shown in Figure 2, according to primary system discharge pressure P11, primary system leaving water temperature T11, primary system pressure of return water P12, primary system return water temperature T12, electrical secondary system discharge pressure P21, electrical secondary system leaving water temperature T21, electrical secondary system pressure of return water P22 electrical secondary system return water temperature T22, parameters such as flow F21, and the variation of the different period thermic load demands of consideration, outdoor temperature Tout, not equal other load influence factors of indoor temperature Tin class of subscriber Fqt, revise and the compensation controlling value, automatically adjust three-way solenoid valve V1 aperture, the small pump M2 of control electrical secondary system circulating pump M1 and electrical secondary system, realize the self-regulation of primary system and electrical secondary system flow and pressure, solve the hydraulic misadjustment problem; The encoding video signal compression that video server arrives camera acquisition, and be transferred to central control room by switch, wireless router and transmitting antenna, and receive instruction from central control room and realize adjusting and control to video camera.

The capital equipment embodiment of above-mentioned heat exchange station Monitor And Control Subsystem and realization function specify as follows:

Temperature sensor adopts the Kunlun seashore JWB type integrative temperature transmitter, and important technological parameters: range is 0-100 ℃, is output as the 4-20mA current signal, and supply voltage is 24VDC.

Pressure sensor adopts the JYB-KO-HAG type of the Kunlun seashore, and important technological parameters: range is 0-5MPa, is output as the 4-20mA current signal, and supply voltage is 24VDC.

The PLC switch board adopts the S7-200 of Siemens, and important technological parameters: processor is CPU226, and the digital extended module is EM223, analog quantity expansion module EM235, and the ethernet communication module is CP243, supply voltage is 85-264VAC.

Wireless router adopts U.S.'s Lucent ORiNOCO RG-1000 ROR outdoor use wireless router, and important technological parameters: working frequency range is 2.4GHz, and maximum distance can transmit 16km, and peak transfer rate is 11M, and operating voltage is 12VDC.

Unidirectional antenna adopts AirStream TMThe AS5800D broadband wireless, important technological parameters: operating frequency is 2.4GHz, access way is time division duplex (TDD), every channel occupancy bandwidth 20/40M, the built-in aerial gain is 18dBi, external maximum gain is 24dBi.

The frequency converter, three-way solenoid valve, video camera, the video server that adopt are identical with the monitoring boiler subsystem.

The switch that adopts is identical with the central control room main system.

The present invention proposes a kind of boiler and heat exchange station intelligent control method based on said system, described system comprises a plurality of Monitor And Control Subsystems mainly be made up of the PLC switch board that are arranged on boiler room and each heat exchange station, be arranged on the monitoring main system of forming by a plurality of main frames of central control room, described each Monitor And Control Subsystem carries out communication by wired or wireless mode and central control room main system, this method may further comprise the steps as shown in Figure 3:

1) each Monitor And Control Subsystem is gathered boiler and heat exchange station parameter signal and vision signal in real time;

2) each Monitor And Control Subsystem carries out being transferred to after the analog-to-digital conversion PLC switch board (also comprise be transferred to operator station for the monitoring boiler subsystem) to the parameter signal of gathering, and changes step 3); The vision signal of being gathered after the encoded and compression, is sent to each main frame of central control room in wireless or wired mode, change step 4);

3) parameter signal of PLC switch board to receiving handled according to the workflow of setting, and output contains the execution of the control instruction enforcement of parameter controlling value to field apparatus, changes step 2); And the parameter signal that will receive and parameter controlling value send to each main frame of central control room in wireless or wired mode, changes step 4); Simultaneously, receive the information of central control room and each heat exchange station, work in coordination with monitoring;

4) after each main frame of central control room carries out analyzing and processing to the information that receives, carry out parameter monitoring and video monitoring respectively, the output controlling value also sends to the PLC switch board, changes step 3), changes step 5) simultaneously;

5) described central control room server carries out the network issue with the information that receives, and the user is through authorizing the telemonitoring of realizing boiler and heat exchange station by network.

Above-mentioned steps 3) workflow (is example with heat exchange station PLC switch board) as shown in Figure 4, may further comprise the steps:

31) the PLC switch board carries out processing such as range conversion to real time information such as the temperature of gathering, pressure, valve openings, changes step 32); Simultaneously, will handle back information and send to central control room, change step 36);

32) parameters such as the pressure differential of calculating electrical secondary system water outlet and backwater and temperature difference;

33) judge according to the data that calculate whether the pressure reduction of electrical secondary system satisfies predefined value (by moving the best pressure difference that a period of time experience obtains), if do not satisfy and then export controlling value to frequency converter, by frequency converter output control circulating pump or small pump, increase the water yield of recirculated water flow velocity or replenish lost, change step 32); If satisfy system's pressure reduction, change step 34);

34) judge whether electrical secondary system water outlet and backwater temperature difference satisfy preset value (by moving the best temperature approach that a period of time experience obtains), if the satisfied step 32 of then changeing) proceed to calculate the pressure reduction and the temperature difference, as not satisfying, then draw controlling value according to corresponding boiler and heat exchange station heat model, controlling value is exported, be used for regulating the magnetic valve of primary system, wherein, each coefficient in this boiler and the heat exchange station heat model changes step 35 by the decision of static informations such as heat supply region area, building structure, user type and water cycle period);

35) postpone a water circulation time ((by moving the actual value that a period of time empirical analysis obtains) judges whether the temperature difference satisfies preset value, if satisfy, then changes step 32) and continue to calculate the pressure reduction and the temperature difference; Do not satisfy then this temperature difference information is sent to central control room, change step 36);

36) the collaborative monitoring of central control room main system and monitoring boiler subsystem is controlled the boiler main system, regulates boiler leaving water temperature and pressure etc., changes step 34).

Above-mentioned steps 4), as shown in Figure 2, specifically may further comprise the steps to parameter monitoring:

411) described parameter information is judged calculating, informix, statistical analysis and early warning and alarming respectively:

Discharge pressure, pressure of return water, leaving water temperature and supplemental characteristics such as return water temperature, valve opening that described parameter host computer using receives, monitored process status is judged, and utilize boiler and heat exchange station heat model, each heat exchange station institute calorific requirement supply, need are opened boiler pedestal number, rate of water make-up etc. utilize the known conventional algorithm to calculate in real time; Parameter information to all monitored devices such as the air blast that receives, air-introduced machine, small pump, circulating pumps carries out analysis-by-synthesis, obtains the running status of the monitored device of each subsystem; Information such as heat supply water cycle period, different times heat demand, water loss are carried out statistical analysis; To burner hearth oxygen content, the isoparametric out-of-limit early warning and alarming that carries out of boiler water level, the warning form comprises sound and light alarm, SMS alarm etc., alarm condition occurs, triggers video monitoring and ejects the video pictures in warning place automatically;

412) to step 411) parameter information after calculating carries out Based Intelligent Control, security evaluation and fault diagnosis:

Utilize existing artificial intelligence technology, after carrying out information convergence analysis and judging, calculate the parameters such as power output of required operation boiler, the adjusting or the controlling value of output boiler, heat exchange station send to each Monitor And Control Subsystem; Running status to boiler and heat exchange station is carried out real time security evaluation, predicts contingent accident and damage sequence, provides emergency measure and the method that should take; Carry out accident analysis, the position that judgement may be broken down, fault type for pump equipment abnormal conditions such as do not work;

413) Real time dynamic display, storage and inquiry:

Dynamic menu, trend curve and teams and groups' form/daily sheet etc. of parameter value, boiler and the heat exchange station of Real time dynamic display monitoring collection in worksite in the operator station of central control room main frame, demonstration large-size screen monitors and boiler subsystem; Information such as the supplemental characteristic after gathering and handling and analysis, assessment are deposited in real time and historical data base automatically, the user inquires about all as required and is kept at information in the database, and the instrument console of monitoring boiler subsystem shows the parameter information of boiler subsystem.

Above-mentioned steps 4) video monitoring is specifically comprised:

421) if video alarm (for example the personnel of detecting enter prohibited area) takes place, the picture of alarm region will be ejected automatically; Collecting video image information will show according to the mode that sets in advance;

422) live video is monitored that carrying out distance focuses, rotate camera pan-tilt and carry out left and right and upper and lower multi-angle adjusting, thereby long-range tour is carried out in the key position equipment and the place of realizing heat exchanging station, boiler;

423) at main frame or show on the large-size screen monitors with N 2Shield multiple mode and carry out video image and show that in real time the video on each road carries out automatic video recording, the user can inquire about and operations such as playback all video recordings.

Method content of the present invention all can adopt the programming of ordinary skill in the art means to realize.

Claims (8)

1. boiler and heat exchange station intelligent monitor system is characterized in that this system is made up of with the monitoring boiler subsystem that links to each other with this central control room main system respectively and a plurality of heat exchange station subsystem the central control room main system;
Described central control room main system, be used for the monitoring boiler subsystem that receives, the Various types of data that each heat exchange station Monitor And Control Subsystem sends are handled, analyzed, calculate the information such as water cycle circulation timei, atmospheric temperature, user type, the variation of different times heat load of monitored primary system and electrical secondary system, the output regulated value sends to monitoring boiler subsystem and each heat exchange station subsystem in real time, and realizes Energy Saving Control with monitoring boiler subsystem and the collaborative monitoring of heat exchange station subsystem;
This monitoring boiler subsystem, be used for the processing that boiler temperature, pressure, liquid level, leaving water temperature, each parameter of pressure of gathering are calculated, stored, demonstration and heat output are analyzed, according to result and central control room main system and collaborative monitoring of heat exchange station subsystem or independent the monitoring;
Described heat exchange station Monitor And Control Subsystem after being used for the data of gathering are handled, is sent to central control room with data wirelessly; And with collaborative monitoring of main system and monitoring boiler subsystem or independent monitoring.
2. system according to claim 1 is characterized in that described central control room main system mainly comprises switch, respectively the parameter monitoring main frame that links to each other with this switch, video monitoring main frame, server, IP phone; The SMS module and the alarm that link to each other with the parameter main frame; The demonstration giant-screen that links to each other with described each main frame, server and switch by UPS; The omnidirectional antenna that links to each other with switch by wireless router, and switch links to each other with the Internet/ private network by Intranet, connect by fire wall between in-house network and central control room, the ip voice phone links to each other with ordinary telephone set by voice gateways.Wherein:
Described parameter monitoring main frame, be mainly used in reception, handle, statistics, analyze and demonstration monitoring boiler subsystem and the monitored device of each heat exchange station Monitor And Control Subsystem and the temperature of process, pressure, flow, liquid level, valve opening, equipment start-stop, each parameter information of frequency conversion frequency, utilize these information and in conjunction with outdoor temperature, the different time sections heat demand changes each influence factor, make in real time and regulate boiler workbench number, total output pressure optimum condition controlling value in the primary system, control instruction is sent to monitoring boiler subsystem and heat exchange station Monitor And Control Subsystem, collaborative each subsystem is monitored, when abnormality, output order triggers alarm work;
Described video monitoring main frame is mainly used in the video image information at reception, processing, demonstration, query monitor scene, to video camera realize rotating, the focusing operation;
Described server, the backup, the network information that are mainly used in parameter, video and management information are issued;
Described demonstration large-size screen monitors are mainly used in the demonstration of each host information;
Described switch is mainly used in the information communication of finishing each main frame.
3. system according to claim 1, it is characterized in that, described monitoring boiler subsystem comprises operator station, many PLC switch boards that link to each other with operator station and Duo Tai instrument console, every instrument console links to each other with an alarm with a PLC switch board, links to each other with every PLC switch board and is arranged on the parameter acquisition equipment and the actuating equipment of every boiler appropriate location; The video camera, the video server that link to each other with operator station by UPS; This video camera links to each other with video server; Operator station, video server link to each other with the central control room switch; This parameter acquisition equipment comprises that outdoor temperature sensor, discharge pressure sensor, pressure of return water sensor, leaving water temperature sensor, return water temperature sensor, flue gas contain oxygen detection, burner hearth oxygen content detector, flowmeter, fire box temperature sensor, exhaust gas temperature sensor, combustion chamber draft sensor, blower export pressure sensor, air-introduced machine pressure sensor; This actuating equipment comprises magnetic valve, blower variable frequency device, air-introduced machine frequency converter, fire grate frequency converter, pump variable frequency device; This magnetic valve, frequency converter link to each other with separately air blast, air-introduced machine, fire grate and water pump in the boiler respectively;
Described PLC switch board is mainly used in conversion, processing and the data communication of signal;
Described operator station, main worker is used for receiving, handles, shows oxygen content, flow, boiler water level, goes out return water temperature, water pump start and stop state various information, and carry out analysis-by-synthesis in conjunction with data pair information such as current temperature, times, heat demand, boiler operatiopn platform number etc. is calculated, each boiler operatiopn state is carried out real-time assessment, early warning and alarming and control automatically;
Described instrument console is mainly used in instrument demonstration and warning;
Described parameter acquisition equipment is mainly used in the collection of temperature, pressure, flow, oxygen content parameter;
Described actuating equipment is mainly used in the enforcement of the change action of by-pass valve control aperture, electric machine frequency; Motor input voltage frequency is changed according to load variations,, reduce equipment loss with saves energy consumption.
4. system according to claim 1, it is characterized in that, described each heat exchange station Monitor And Control Subsystem is by the PLC switch board, the parameter acquisition equipment and the actuating equipment that link to each other with the PLC switch board, the switch that links to each other with the PLC switch board, the video server that links to each other with switch, wireless router, the unidirectional antenna that links to each other with wireless router, the video camera that links to each other with video server;
This parameter acquisition equipment comprises temperature sensor and pressure sensor, outdoor temperature sensor and the flowmeter of primary system temperature sensor, pressure sensor, electrical secondary system; Actuating equipment comprises three-way solenoid valve, the frequency converter that links to each other with circulating pump/small pump in the electrical secondary system.
5. based on the boiler and the heat exchange station intelligent control method of system according to claim 1, described system comprises a plurality of Monitor And Control Subsystems mainly be made up of the PLC switch board that are arranged on boiler room and each heat exchange station, be arranged on the monitoring main system of forming by a plurality of main frames of central control room, described each Monitor And Control Subsystem carries out communication by the monitoring main system of wired or wireless mode and central control room, and this method for supervising may further comprise the steps:
1) each Monitor And Control Subsystem is gathered boiler and heat exchange station parameter signal and vision signal in real time;
2) each Monitor And Control Subsystem carries out being transferred to the PLC switch board after the analog-to-digital conversion to the parameter signal of gathering, and changes step 3); The vision signal of being gathered after the encoded and compression, is sent to each main frame of central control room in wireless or wired mode, change step 4);
3) parameter signal of PLC switch board to receiving handled according to the workflow of setting, and output contains the execution of the control instruction enforcement of parameter controlling value to field apparatus, changes step 2); And the parameter signal that will receive and parameter controlling value send to each main frame of central control room in wireless or wired mode, changes step 4); Simultaneously, receive the information of central control room and each heat exchange station, work in coordination with monitoring;
4) after each main frame of central control room carries out analyzing and processing to the information that receives, carry out parameter monitoring and video monitoring respectively, the output controlling value also sends to the PLC switch board, changes step 3), changes step 5) simultaneously;
5) the central control room server carries out the network issue with the information that receives, and the user is through authorizing the telemonitoring of realizing boiler and heat exchange station by network.
6. as method as described in the claim 5, the workflow of described step 3) specifically may further comprise the steps:
31) the PLC switch board carries out processing such as range conversion to real time information such as the temperature of gathering, pressure, valve openings, changes step 32); Simultaneously, will handle back information and send to central control room, change step 36);
32) parameters such as the pressure differential of calculating electrical secondary system water outlet and backwater and temperature difference;
33) judge according to the data that calculate whether the pressure reduction of electrical secondary system satisfies predefined value, if do not satisfy and then export controlling value to frequency converter, by frequency converter output control circulating pump or small pump, increase the water yield of recirculated water flow velocity or replenish lost, change step 32); If satisfy system's pressure reduction, change step 34);
34) judge whether electrical secondary system water outlet and backwater temperature difference satisfy preset value, if the satisfied step 32 of then changeing) proceed to calculate the pressure reduction and the temperature difference, as not satisfying, then draw controlling value according to corresponding boiler and heat exchange station heat model, controlling value is exported, be used for regulating the magnetic valve of primary system, change step 35);
35) postpone a water circulation time, judge whether the temperature difference satisfies preset value,, then change step 32 if satisfy) the continuation calculating pressure reduction and the temperature difference; Do not satisfy then this temperature difference information is sent to central control room, change step 36);
36) the collaborative monitoring of central control room main system and monitoring boiler subsystem is controlled the boiler main system, regulates boiler leaving water temperature and pressure etc., changes step 34).
7. as method as described in the claim 5, described step 4) specifically may further comprise the steps parameter monitoring:
411) described parameter information is judged calculating, informix, statistical analysis and early warning and alarming respectively:
Discharge pressure, pressure of return water, leaving water temperature and supplemental characteristics such as return water temperature, valve opening that the parameter host computer using receives, monitored process status is judged, and utilize boiler and heat exchange station heat model, each heat exchange station institute calorific requirement supply, need are opened boiler pedestal number, rate of water make-up etc. utilize the known conventional algorithm to calculate in real time; Parameter information to the monitored device that receives carries out analysis-by-synthesis, obtains the running status of the monitored device of each subsystem; Information such as heat supply water cycle period, different times heat demand, water loss are carried out statistical analysis; To the out-of-limit early warning and alarming that carries out of burner hearth oxygen content, boiler water level parameter, the warning form comprises sound and light alarm, SMS alarm etc., alarm condition occurs, triggers video monitoring and ejects the video pictures in warning place automatically;
412) to step 411) parameter information after calculating carries out Based Intelligent Control, security evaluation and fault diagnosis:
Utilize artificial intelligence technology, after carrying out information convergence analysis and judging, calculate the power output parameter of required operation boiler, the adjusting or the controlling value of output boiler, heat exchange station send to each Monitor And Control Subsystem; Running status to boiler and heat exchange station is carried out real time security evaluation, predicts contingent accident and damage sequence, provides emergency measure and the method that should take; Carry out accident analysis for abnormal conditions, the position that judgement may be broken down, fault type;
413) Real time dynamic display, storage and inquiry:
The dynamic menu of parameter value, boiler and the heat exchange station of each main frame of central control room main system, demonstration large-size screen monitors and subsystem Real time dynamic display monitoring collection in worksite; Information such as the supplemental characteristic after gathering and handling and analysis, assessment are deposited in real time and historical data base automatically, and the user inquires about all as required and is kept at information in the database;
8. as method as described in the claim 5, institute's above-mentioned steps 4) video monitoring is specifically comprised:
421) if video alarm takes place, the picture of alarm region will be ejected automatically; Collecting video image information will show according to the mode that sets in advance;
422) live video is monitored that carrying out distance focuses, rotate camera pan-tilt and carry out left and right and upper and lower multi-angle adjusting, realize that long-range tour is carried out in the key position equipment and the place of heat exchanging station, boiler;
423) at main frame or show on the large-size screen monitors with N 2Shield multiple mode and carry out video image and show that in real time the video on each road carries out automatic video recording, the user inquires about and operations such as playback all video recordings.
CN2009100773282A 2009-02-17 2009-02-17 Intelligent monitoring system for boiler and heat exchange station CN101498468B (en)

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