CN103885397A - Wet process flue gas desulphurization intelligent monitoring system and method - Google Patents
Wet process flue gas desulphurization intelligent monitoring system and method Download PDFInfo
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- CN103885397A CN103885397A CN201310716373.4A CN201310716373A CN103885397A CN 103885397 A CN103885397 A CN 103885397A CN 201310716373 A CN201310716373 A CN 201310716373A CN 103885397 A CN103885397 A CN 103885397A
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Abstract
The invention provides a wet process flue gas desulphurization intelligent monitoring system and method. The system comprises a monitoring unit, a central processing unit, a data acquisition unit, a slurry fluid supplying and exhausting control unit and a remote control unit. The monitoring unit is provided with a visual monitoring system, a database and an intelligent calculation module whose central processing unit is developed on the basis of a programmable logic controller. Slurry fluid supplying and exhausting amount is automatically adjusted and controlled in a reasonable numerical range according to change of operation parameters of desulfurization tower flue gas and desulphurization slurry fluid so that real-time monitoring of flue gas outlet sulfur dioxide concentration, desulphurization slurry fluid pH value and density and slurry storage pool liquid level is realized, dynamic self-adaptive matching with flue gas inlet sulfur dioxide concentration and flue gas amount is realized, and thus reduction of flue gas desulfurization rate caused by deviation of the parameters of desulphurization slurry fluid from the optimal range value and rapid change can be avoided. The system and the method have characteristics of being high in desulfurization rate without discharge of waste water, energy-saving, stable and reliable, intelligent in monitoring, etc.
Description
Technical field
The present invention relates to Wet Flue Gas Desulfurization Technology field, particularly a kind of wet process of FGD intelligent monitor system and method.
Background technology
Along with improving constantly of environmental standard, industrial furnace and Pollution of Boiler gas purging are carried out to stricter standard, the monitoring of fume emission is proposed to higher requirement.The at present most widely used wet desulfurization of flue gas by limestone-gypsum method technology of China, owing to having experienced the development course of many decades, its desulfurized effect arrive development bottleneck, and efficient, reduce discharging energy-conservation, intelligent monitoring and become the key that current desulfur technology develops.
Because the variation of industrial furnace and boiler load is frequent, in flue gas desulfurization operational process, the desulfuration efficiency of desulfurizer constantly changes along with the continuous fluctuation of smoke inlet sulfur dioxide concentration and exhaust gas volumn, meanwhile, the key parameter such as desulfurization slurry pH value and density, pulp storage tank liquid level also constantly changes thereupon.Tradition wet desulfurization of flue gas by limestone-gypsum method equipment adopts manual monitoring, can not Real-Time Monitoring flue gas and desulfurization slurry operational factor, more cannot regulate in time desulfurization slurry operational factor according to variation and the emergency situations of flue gas gateway load, cause the crucial operational factor of desulfurization sharply to change, even substantial deviation optimum range value, not only reduce the desulfuration efficiency of desulfurizer, cause discharge SO 2 from fume concentration over-standard, also reduce lime stone utilization factor and gypsum qualitt simultaneously, cause desulfurizer inwall and component surface fouling and obstruction, pulp storage tank hypovolia, affect the normal safe operation of sweetener, when serious, even cause the stoppage in transit of whole desulphurization system.
Existing had some reports about wet process of FGD equipment, as the Chinese Patent Application No. Patent Application Publication that is 200810062298.3 a kind of open loop Fuzzy control system for wet method fume desulfurizing system, give chapter and verse sulfur dioxide emissioning concentration requirement and former Gas Parameters, controlled by industrial computer.But it does not judge whole desulfurizer and control as a system; open loop is fuzzy likely because control does not precisely cause system-down, controls the loss that inaccurate some that cause are unnecessary, and can not carry out manual control to sweetener by the mode of Long-distance Control.
A kind of wet fuel gas desulfurizing technology monitoring and automatic control system of Long-distance Control that Chinese Patent Application No. has been 200410020799.7 Patent Application Publication, can be by the operation of remote terminal control sweetener, but aspect Long-distance Control, do not relate to the technical scheme of network security aspect, may there is the problem such as network hacker, computer virus, likely can cause the control of desulfurizer system to receive destruction, cause destructive larger adverse consequences.
Summary of the invention
The above-mentioned defect existing for traditional wet desulfurization of flue gas by limestone-gypsum method equipment, the technical problem to be solved in the present invention is to monitor in real time exhanst gas outlet sulfur dioxide concentration, ensureing under the prerequisite of exhanst gas outlet sulfur dioxide concentration lower than setting value, the crucial operational factors such as desulfurization slurry pH value and density, desulfurization slurry flow, thionizer liquid level are mated with the variation dynamic self-adapting of smoke inlet sulfur dioxide concentration and exhaust gas volumn, avoid discharging the crucial operational factor of SO 2 from fume concentration over-standard and desulfurization slurry and sharply change and off-target value range.
The solution of the present invention is by such realization: a kind of wet process of FGD intelligent monitor system, comprise monitoring unit, CPU (central processing unit), data acquisition unit, slurries supply and discharge control module, remote control unit, alarm unit, it is characterized in that: described monitoring unit is connected with CPU (central processing unit) by the control mode of automatic or manual to be controlled desulfurizer flue gas, desulfurization slurry operational factor steering order; Described data acquisition unit is connected with CPU (central processing unit), is collected ebullator real time data information and is sent data message to CPU (central processing unit) by the sensor being arranged on each ebullator; CPU (central processing unit) contrasts the information of data acquisition unit collection and default data message, by slurries supply and discharge control module, the each ebullator of desulphurization system is controlled; Remote control unit is connected with monitoring unit, can implement to receive and on monitoring unit, send monitor message, and can control information be transferred to CPU (central processing unit) by remote control unit, complete the control to desulfurizer flue gas, desulfurization slurry operational factor steering order by CPU (central processing unit).
Further: described monitoring unit is host computer, host computer is provided with Visualized Monitoring System and database, Visualized Monitoring System is provided with input media, display device, can pass through input media, display device input desulfurizer flue gas, desulfurization slurry operational factor steering order and/or the instruction of manual control slurries supply and discharge, and desulfurizer flue gas, desulfurization slurry operational factor steering order and/or the instruction of manual control slurries supply and discharge are issued to CPU (central processing unit); Described database is used for storing data and information, and by the input media of Visualized Monitoring System, the data that display device can be transferred database, the data in database are presented at by the form of chart in the display device of Visualized Monitoring System;
Described CPU (central processing unit) is programmable logic controller (PLC) PLC, programmable logic controller (PLC) PLC is provided with computing module, for receiving the parameter steering order that monitoring unit issues, flue gas and desulfurization slurry operational factor real-time measuring data that data acquisition unit sends, the information of the ruuning situation of the slurries supply and discharge pump of slurries supply and discharge control module feedback, and computational analysis and the data transferred in monitoring unit database contrast judgement in addition to these information, judge and generate the decision instruction of slurries for discharge capacity by contrast, and the decision instruction of digital signal is converted to simulating signal, be issued to described slurries supply and discharge control module,
Described data acquisition unit is made up of sensor group and the analog quantity sampling module of measuring desulfurizer exhanst gas outlet sulfur dioxide concentration, smoke inlet sulfur dioxide concentration and exhaust gas volumn, desulfurization slurry flow, desulfurization slurry pH value and density, pulp storage tank liquid level, described analog quantity sampling module is connected with described sensor group, the simulating signal that analog quantity sampling module gets sensor group is converted to digital signal, and sends to described CPU (central processing unit);
Described slurries supply and discharge control module is frequency converter group, receive after the instruction of slurries supply and discharge decision instruction that CPU (central processing unit) sends and/or manual control slurries supply and discharge regulating frequency, regulate, control desulfurization slurry pump, limestone slurry liquid pump, the small pump of desulfurizer, flow regulation and the start and stop of slurry pump by frequency conversion; The instruction of manual control slurries supply and discharge regulating frequency by Visualized Monitoring System be provided with input media, display device is controlled; Slurries supply and discharge control module receives and is arranged on the work state information feedback that the sensor of desulfurization slurry pump, limestone slurry liquid pump, small pump, slurry pump sends, and work state information feedback is sent to CPU (central processing unit);
Described remote control unit comprises remote controllers and managerial personnel's mobile terminal, described remote controllers are connected with CPU (central processing unit), be used for to CPU (central processing unit) receiving and/or transmitting device health information, send equipment operation condition information to managerial personnel's mobile terminal, the facility information that described managerial personnel's mobile terminal sends for receiving remote controller, can carry out manual control to sweetener by managerial personnel's mobile terminal.
Further: on described remote control unit, to be also provided with security authentication systems, described security authentication systems is carried out long-distance identity-certifying by the telecommunication module that is arranged on managerial personnel's mobile terminal and be arranged on monitoring unit host computer, described managerial personnel's mobile terminal acquisition management personnel finger print information, and the collection managerial personnel finger print information of managerial personnel's mobile terminal being adopted by mobile base station contrasts with the finger print information that is preset in monitoring unit database, to obtain Long-distance Control authority.
Further: described security authentication systems is also by pre-stored in the host computer database of monitoring unit the information such as the hardware encipher key of its managerial personnel's mobile terminal, user account number, user cipher, user location, when managerial personnel's mobile terminal connects telecommunication module, compare with the pre-stored information of the host computer database that is stored in monitoring unit, authorization information is transmitted by the mode of md5 encryption
Further: described security authentication systems is also by regularly sending heartbeat instruction to managerial personnel's mobile terminal, allow remote server end confirm that wireless authentication system client is online, the time interval that regularly sends heartbeat instruction is 5-60 minute, managerial personnel's mobile terminal of confirming heartbeat instruction is carried out to legitimacy detection, detection management personnel's mobile terminal hardware encipher key, user account number, user cipher, user location and software version information, confirm the legitimacy of managerial personnel's mobile terminal, illegal managerial personnel's mobile terminal is disconnected and being connected with the long-range of its.
Further: described monitoring unit can be on Visualized Monitoring System, input the work state information of parameter steering order, flue gas and desulfurization slurry parameter real-time measuring data, the control information of slurries supply and discharge and the slurries supply and discharge pump of flue gas and desulfurization slurry operation in artificial mode, and synchronously generate figure line and form, in the display device of Visualized Monitoring System, show, realize visual real time monitoring and control to flue gas and desulfurization slurry operational factor.
Further: the exhanst gas outlet sulfur dioxide concentration that described CPU (central processing unit) obtains according to data acquisition unit, smoke inlet sulfur dioxide concentration and exhaust gas volumn and desulfurization slurry pH value and density, the real-time measuring data of pulp storage tank liquid level, in conjunction with the parameter range of control value of setting in database and slurries supply and discharge pump work status information, by computing module and desulfurization slurry flow value, desulfurization slurry pH value, desulfurization slurry density value, the isoparametric contrast of pulp storage tank level value, generate the decision instruction of slurries supply and discharge, and be issued to slurries supply and discharge control module, flow and the start and stop of the each slurries supply and discharge of regulation and control pump.
Further: described alarm unit is connected with monitoring unit; Described CPU (central processing unit) compares and judges and/or judge according to the slurries supply and discharge pump work status information of described slurries supply and discharge control module feedback described flue gas and desulfurization slurry operational factor real-time measuring data and described parameter range of control value, if when being judged as abnormal conditions and/or equipment and breaking down, CPU (central processing unit) is sent warning message, send monitoring unit to, monitoring unit shows anomaly parameter and/or the faulty equipment information of image conversion to the display screen of Visualized Monitoring System, and sends warning message to described alarm unit.
Further: described monitoring unit, data acquisition unit, slurries supply and discharge control module are connected with described CPU (central processing unit) by RS485 bus, described alarm unit is connected with communication unit, warning message can be sent on computing machine, mobile phone by internet, radio communication base station.
Further: described method comprises the steps:
(1) desulfurizer flue gas and desulfurization slurry parameter steering order are issued to CPU (central processing unit) by monitoring unit, reads and store data and the information of CPU (central processing unit), and the data of CPU (central processing unit) and information are presented in the display device of monitoring unit;
(2) the operational factor Real-Time Monitoring of the sensor group being connected with data acquisition unit to desulfurizer flue gas and desulfurization slurry, and the measurement data of obtaining is sent to CPU (central processing unit);
(3) CPU (central processing unit) is carried out analysis and calculation to the parameter steering order of receiving, parameter real-time measuring data, slurries supply and discharge pump work status information, automatically generates the decision instruction of slurries supply and discharge, is issued to slurries supply and discharge control module;
(4) carry out by slurries supply and discharge control module the slurries supply and discharge decision instruction that CPU (central processing unit) generates automatically, in real time flow and the start and stop of the corresponding desulfurization slurry supply and discharge of regulation and control pump.
The invention has the beneficial effects as follows:
1. desulfuration efficiency is high.In desulfurization operation process, the key parameters such as desulfurization slurry flow, desulfurization slurry pH value and density mate with the variation dynamic self-adapting of smoke inlet sulfur dioxide concentration and exhaust gas volumn, make the alkalescence of liquid-gas ratio, desulfurization slurry of desulfurizer and concentration retentive control in optimum value, thereby make the desulfuration efficiency of desulfurizer remain on optimal design value.
2. without discharging of waste liquid.Because desulfurization slurry pH value and density retentive control are in optimum range value, be difficult for forming fouling and obstruction in desulfurizer component surface, greatly reduce washing time, simultaneously owing to accurately holding the opportunity of discharge gypsum slurries, in operational process, do not produce desulfurization slurries more than needed, the slurries that must outwards discharge are delivered to gypsum treatment system, and the water of separating can be used as supplementing water and lime stone slurry is prepared water, and desulphurization system is not outwards discharged waste liquid.
3. operational reliability is high.Because the control of desulfurization slurry key parameter is proper, effectively reduce the most serious fouling and blockage problem that desulfurizer often occurs, pulp storage tank maintains enough desulfurization slurries, and the equipment operation efficiency of desulfurizer and pulp storage tank is higher, more reliable and stable.
4. operating cost and energy consumption are low.System can be according to the variation of desulfurizer smoke inlet sulfur dioxide concentration and exhaust gas volumn, and variation and the requirement of desulfurization slurry alkalescence and concentration, pulp storage tank liquid level, flow and the start and stop of the each slurries supply and discharge of regulation and control pump in time, by the actual liquid requirement feed flow that needs, not only save electric energy, reduce water consumption, and lime stone utilization factor is high, gypsum qualitt is good.
5. Intellectualized monitoring.The automatic control of the Real-Time Monitoring by multisensor to desulfurizer flue gas gateway and slurries parameter, the visual control of monitoring unit, programmable logic controller (PLC), realize desulfurization slurry key parameter and smoke inlet sulfur dioxide concentration and exhaust gas volumn dynamically, in real time, Adaptive matching, effectively ensure continuity, stability and the reliability of exhanst gas outlet sulfur dioxide concentration and the monitoring of desulfurization slurry key parameter.
6. system, also by the coordinated of monitoring unit, CPU (central processing unit), data acquisition unit, slurries supply and discharge control module, reaches the effect that reduces labour intensity, raises the efficiency, improves technique desulfurization quality.
7. CPU (central processing unit) is sent to warning message on alarm unit and monitoring unit simultaneously, can from Visualized Monitoring System, obtain warning message with warning device, people can be near desulfurizer, notice warning message away from the region of desulfurizer, can be from Remote Acquisitioning warning message, reach the advantage that reduces labour intensity, raising desulfurizer operational efficiency, reduces failure rate.
8. alarm unit is also provided with communication system, warning message can be sent on the communication apparatus such as computing machine, mobile phone by internet, cordless communication network, can strengthen wirelessly the monitoring to equipment, reach the technical purpose that improves desulphurization system stability, safety in production.
9. intelligent control in conjunction with manual control, solves while breaking down because of a certain module the deviation that can correct by manual control intelligent automatic control.
10. in the process of Long-distance Control, be provided with security authentication systems, can be by multiple safety verification mode, guarantee that the operation of desulfurizer system is not disturbed by extraneous undesirable element, and can pass through account verification, the randomness that accurately control and management personnel's behavioural norm, minimizing managerial personnel control, the security that improves desulfurizer system.
four, brief description of the drawings
Fig. 1 is the structural representation of wet process of FGD intelligent monitor system of the present invention.
Fig. 2 is the Organization Chart of wet process of FGD intelligent monitor system monitoring unit of the present invention.
Fig. 3 is the control flow chart of wet process of FGD intelligent monitor system of the present invention.
five, embodiment
In detail reference example, has provided the example of these embodiment in the accompanying drawings.In detailed description, some specific detail are proposed below, to allow those skilled in the art have more thorough understanding to the present invention.But those skilled in the art it will be clear that realization of the present invention can not only be limited to these specific details.Other in the situation that, known method, program, components and parts, assembly, circuits and networks are not described in detail, to avoid the correlative detail ambiguous of following examples.
A kind of wet process of FGD intelligent monitor system and method that the present invention proposes, be used for adopting lime stone-gypsum wet type desulfurizing tower to remove monitoring and the control of the sulphuric dioxide of Industrial Stoves and boiler discharge flue gas, further illustrate technical scheme of the present invention below by drawings and Examples.
Embodiment 1
As shown in Figure 1, a kind of wet process of FGD intelligent monitor system of the present invention is made up of monitoring unit, data acquisition unit, CPU (central processing unit), slurries supply and discharge control module.Monitoring unit is host computer, host computer is provided with Visualized Monitoring System and database, Visualized Monitoring System is provided with input media, display device, can pass through input media, display device input desulfurizer flue gas, desulfurization slurry operational factor steering order and/or the instruction of manual control slurries supply and discharge, and desulfurizer flue gas, desulfurization slurry operational factor steering order and/or the instruction of manual control slurries supply and discharge are issued to CPU (central processing unit); Described database is used for storing data and information, by the input media of Visualized Monitoring System, the data that display device can be transferred database, data in database are presented at by the form of chart in the display device of Visualized Monitoring System, and monitoring unit carries out communication transfer by RS485 bus and CPU (central processing unit); Managerial personnel set desulfurizer exhanst gas outlet sulfur dioxide concentration higher limit by Visualized Monitoring System, and the range of control value of desulfurization slurry pH value, desulfurization slurry density, pulp storage tank liquid level, can also input the desulfurizer flue gas operational factors such as the higher limit of desulfurizer smoke inlet sulfur dioxide concentration and exhaust gas volumn by Visualized Monitoring System, send to CPU (central processing unit).Managerial personnel can also input the instruction of manual control slurries supply and discharge as required, are transmitted to slurries supply and discharge control module by CPU (central processing unit), realize flow to slurries supply and discharge pump and the manual control of start and stop.Monitoring unit is read and is stored various data and the information of CPU (central processing unit) by database, and synchronously generates figure line and form, is dynamically presented on Visualized Monitoring System, checks and/or decision-making for managerial personnel.Monitoring unit comprises parameter setting interface by Visualized Monitoring System, dynamic state of parameters interface, system alarm interface, real-time data curve, historical data curve, data sheet inquiry, managerial personnel can input the control requirement of flue gas and desulfurization slurry operational factor by Visualized Monitoring System, the duty of manual control slurries supply and discharge pump, the variation of all right real time monitoring desulfurizer flue gas and desulfurization slurry operational factor and automatically control information and slurries supply and discharge pump work state, find in time the abnormal of flue gas and desulfurization slurry operational factor and slurries supply and discharge pump, thereby make a policy in time and take measures.Data acquisition unit is by being arranged at the sulfur dioxide concentration sensor of flue gas gateway, the flow sensor of desulfurization slurry pumping line, pH value sensor, density sensor and the liquid level sensor that is arranged on pulp storage tank, the data that Real-time Collection is relevant with desulfurization slurry operational factor with flue gas, sensor is connected with analog quantity sampling module, the simulating signal that sensor group is measured is converted to digital signal, and send to described CPU (central processing unit), between sensor and analog quantity sampling module by two core twisted pair line connections, the analog signal transmission of each sensor is separate and do not interfere with each other.Analog quantity sampling module and CPU (central processing unit) are carried out data transmission by RS485 bus.CPU (central processing unit), receive flue gas and desulfurization slurry operational factor steering order that monitoring unit issues, receive the flue gas of data acquisition unit transmission and the slurries supply and discharge pump work status information of desulfurization slurry operational factor real-time measuring data and slurries supply and discharge control module feedback simultaneously, and by computing module, the instruction receiving, data and information are calculated, analyzed and judges, complete after determining step, generate in real time slurries supply and discharge steering order, be issued to slurries supply and discharge control module, to realize the automatic control of operational factor.Computing module is developed based on PLC, according to the real-time measuring data of exhanst gas outlet sulfur dioxide concentration and smoke inlet sulfur dioxide concentration and exhaust gas volumn, and in conjunction with the control requirement of exhanst gas outlet sulfur dioxide concentration, calculate best desulfurization slurry quantity delivered by best liquid-gas ratio requirement, simultaneously according to desulfurization slurry pH value and density, the real-time measuring data of pulp storage tank liquid level, and in conjunction with desulfurization slurry pH value and density, the control requirement of pulp storage tank liquid level, calculate best lime stone slurry quantity delivered, fresh water (FW) quantity delivered and pulp storage tank slurries discharge capacity, generate desulfurization slurry pump, limestone slurry liquid pump, the real-time traffic decision instruction of technique water pump and slurry pump, be issued to slurries supply and discharge control module, slurries supply and discharge control module is carried out flow decision instruction, flow and the start and stop of the each slurries supply and discharge of regulation and control pump in real time, thereby realize desulfurization slurry, lime stone slurry, the dynamic control of the quantity delivered of fresh water (FW) and pulp storage tank plasma discharge amount, ensureing exhanst gas outlet sulfur dioxide concentration, desulfurization slurry pH value and density, pulp storage tank liquid level is controlled under the prerequisite of setting range value, realize desulfurization slurry, lime stone slurry, the variation of the quantity delivered of fresh water (FW) and slurries discharge capacity and smoke inlet sulfur dioxide concentration and exhaust gas volumn is dynamic, in real time, Adaptive matching.Slurries supply and discharge control module and CPU (central processing unit) are carried out data transmission by RS485 bus, carry out the automatic control slurries supply and discharge decision instruction of CPU (central processing unit), to desulfurization slurry pump, limestone slurry liquid pump, technique water pump and slurry pump send variable frequency adjustment control signal and carry out variable frequency control, in time, flow and the start and stop of the each slurries supply and discharge of regulation and control pump exactly, to realize dynamically, control in real time desulfurization slurry, lime stone slurry, the quantity delivered of fresh water (FW) and slurries discharge capacity, guarantee that the quantity delivered of desulfurization slurry and the sulfur dioxide concentration of smoke inlet and exhaust gas volumn keep optimal proportion, guarantee that desulfurization slurry pH value and density and pulp storage tank liquid level are along with the sulfur dioxide concentration of smoke inlet and the variation of exhaust gas volumn regulate and control in time simultaneously.
Remote control unit comprises remote controllers and managerial personnel's mobile terminal, described remote controllers are connected with CPU (central processing unit), be used for to CPU (central processing unit) receiving and/or transmitting device health information, send equipment operation condition information to managerial personnel's mobile terminal, the facility information that described managerial personnel's mobile terminal sends for receiving remote controller, can carry out manual control to sweetener by managerial personnel's mobile terminal.On described remote control unit, be also provided with security authentication systems, described security authentication systems is carried out long-distance identity-certifying by the telecommunication module that is arranged on managerial personnel's mobile terminal and be arranged on monitoring unit host computer, described managerial personnel's mobile terminal acquisition management personnel finger print information, and the collection managerial personnel finger print information of managerial personnel's mobile terminal being adopted by mobile base station contrasts with the finger print information that is preset in monitoring unit database, to obtain Long-distance Control authority.Security authentication systems is also by pre-stored in the host computer database of monitoring unit the information such as the hardware encipher key of its managerial personnel's mobile terminal, user account number, user cipher, user location, when managerial personnel's mobile terminal connects telecommunication module, compare with the pre-stored information of the host computer database that is stored in monitoring unit, authorization information is transmitted by the mode of md5 encryption.Described security authentication systems is also by regularly sending heartbeat instruction to managerial personnel's mobile terminal, allow remote server end confirm that wireless authentication system client is online, the time interval that regularly sends heartbeat instruction is 5 minutes, managerial personnel's mobile terminal of confirming heartbeat instruction is carried out to legitimacy detection, detection management personnel's mobile terminal hardware encipher key, user account number, user cipher, user location and software version information, confirm the legitimacy of managerial personnel's mobile terminal, illegal managerial personnel's mobile terminal is disconnected and being connected with the long-range of its.
Embodiment 2
The time interval that embodiment 2 and embodiment 1 different are only regularly to send heartbeat instruction is 60 minutes.
Finally it should be noted that: obviously, above-described embodiment is only used to clearly illustrate example of the present invention, and not to the restriction of implementing.For the those of ordinary skill in described field, can also make other changes in different forms on the basis of the above description.Here without also cannot be to all embodiment with exhaustive.And the apparent variation of being amplified out thus or variation are still among protection scope of the present invention.
Claims (10)
1. a wet process of FGD intelligent monitor system, comprise monitoring unit, CPU (central processing unit), data acquisition unit, slurries supply and discharge control module, remote control unit, alarm unit, it is characterized in that: described monitoring unit is connected with CPU (central processing unit) by the control mode of automatic or manual to be controlled desulfurizer flue gas, desulfurization slurry operational factor steering order; Described data acquisition unit is connected with CPU (central processing unit), is collected ebullator real time data information and is sent data message to CPU (central processing unit) by the sensor being arranged on each ebullator; CPU (central processing unit) contrasts the information of data acquisition unit collection and default data message, by slurries supply and discharge control module, the each ebullator of desulphurization system is controlled; Remote control unit is connected with monitoring unit, can implement to receive and on monitoring unit, send monitor message, and can control information be transferred to CPU (central processing unit) by remote control unit, complete the control to desulfurizer flue gas, desulfurization slurry operational factor steering order by CPU (central processing unit).
2. wet process of FGD intelligent monitor system as claimed in claim 1, is characterized in that:
Described monitoring unit is host computer, host computer is provided with Visualized Monitoring System and database, Visualized Monitoring System is provided with input media, display device, can pass through input media, display device input desulfurizer flue gas, desulfurization slurry operational factor steering order and/or the instruction of manual control slurries supply and discharge, and desulfurizer flue gas, desulfurization slurry operational factor steering order and/or the instruction of manual control slurries supply and discharge are issued to CPU (central processing unit); Described database is used for storing data and information, and by the input media of Visualized Monitoring System, the data that display device can be transferred database, the data in database are presented at by the form of chart in the display device of Visualized Monitoring System;
Described CPU (central processing unit) is programmable logic controller (PLC) PLC, programmable logic controller (PLC) PLC is provided with computing module, for receiving the parameter steering order that monitoring unit issues, flue gas and desulfurization slurry operational factor real-time measuring data that data acquisition unit sends, the information of the ruuning situation of the slurries supply and discharge pump of slurries supply and discharge control module feedback, and computational analysis and the data transferred in monitoring unit database contrast judgement in addition to these information, judge and generate the decision instruction of slurries for discharge capacity by contrast, and the decision instruction of digital signal is converted to simulating signal, be issued to described slurries supply and discharge control module,
Described data acquisition unit is made up of sensor group and the analog quantity sampling module of measuring desulfurizer exhanst gas outlet sulfur dioxide concentration, smoke inlet sulfur dioxide concentration and exhaust gas volumn, desulfurization slurry flow, desulfurization slurry pH value and density, pulp storage tank liquid level, described analog quantity sampling module is connected with described sensor group, the simulating signal that analog quantity sampling module gets sensor group is converted to digital signal, and sends to described CPU (central processing unit);
Described slurries supply and discharge control module is frequency converter group, receive after the instruction of slurries supply and discharge decision instruction that CPU (central processing unit) sends and/or manual control slurries supply and discharge regulating frequency, regulate, control desulfurization slurry pump, limestone slurry liquid pump, the small pump of desulfurizer, flow regulation and the start and stop of slurry pump by frequency conversion; The instruction of manual control slurries supply and discharge regulating frequency by Visualized Monitoring System be provided with input media, display device is controlled; Slurries supply and discharge control module receives and is arranged on the work state information feedback that the sensor of desulfurization slurry pump, limestone slurry liquid pump, small pump, slurry pump sends, and work state information feedback is sent to CPU (central processing unit);
Described remote control unit comprises remote controllers and managerial personnel's mobile terminal, described remote controllers are connected with CPU (central processing unit), be used for to CPU (central processing unit) receiving and/or transmitting device health information, send equipment operation condition information to managerial personnel's mobile terminal, the facility information that described managerial personnel's mobile terminal sends for receiving remote controller, can carry out manual control to sweetener by managerial personnel's mobile terminal.
3. a kind of wet process of FGD intelligent monitor system as claimed in claim 2, it is characterized in that: on described remote control unit, be also provided with security authentication systems, described security authentication systems is carried out long-distance identity-certifying by the telecommunication module that is arranged on managerial personnel's mobile terminal and be arranged on monitoring unit host computer, described managerial personnel's mobile terminal acquisition management personnel finger print information, and the collection managerial personnel finger print information of managerial personnel's mobile terminal being adopted by mobile base station contrasts with the finger print information being preset in monitoring unit database, to obtain Long-distance Control authority.
4. a kind of wet process of FGD intelligent monitor system as claimed in claim 3, it is characterized in that: described security authentication systems is also by pre-stored in the host computer database of monitoring unit the information such as the hardware encipher key of its managerial personnel's mobile terminal, user account number, user cipher, user location, when managerial personnel's mobile terminal connects telecommunication module, compare with the pre-stored information of the host computer database that is stored in monitoring unit, authorization information is transmitted by the mode of md5 encryption.
5. a kind of wet process of FGD intelligent monitor system as claimed in claim 4, it is characterized in that: described security authentication systems is also by regularly sending heartbeat instruction to managerial personnel's mobile terminal, allow remote server end confirm that wireless authentication system client is online, the time interval that regularly sends heartbeat instruction is 5-60 minute, managerial personnel's mobile terminal of confirming heartbeat instruction is carried out to legitimacy detection, detection management personnel's mobile terminal hardware encipher key, user account number, user cipher, user location and software version information, confirm the legitimacy of managerial personnel's mobile terminal, illegal managerial personnel's mobile terminal is disconnected and being connected with the long-range of its.
6. wet process of FGD intelligent monitor system as claimed in claim 1, it is characterized in that: described monitoring unit can be on Visualized Monitoring System, input the work state information of parameter steering order, flue gas and desulfurization slurry parameter real-time measuring data, the control information of slurries supply and discharge and the slurries supply and discharge pump of flue gas and desulfurization slurry operation in artificial mode, and synchronously generate figure line and form, in the display device of Visualized Monitoring System, show, realize visual real time monitoring and control to flue gas and desulfurization slurry operational factor.
7. wet process of FGD intelligent monitor system as claimed in claim 1, it is characterized in that: the exhanst gas outlet sulfur dioxide concentration that described CPU (central processing unit) obtains according to data acquisition unit, smoke inlet sulfur dioxide concentration and exhaust gas volumn and desulfurization slurry pH value and density, the real-time measuring data of pulp storage tank liquid level, in conjunction with the parameter range of control value of setting in database and slurries supply and discharge pump work status information, by computing module and desulfurization slurry flow value, desulfurization slurry pH value, desulfurization slurry density value, the isoparametric contrast of pulp storage tank level value, generate the decision instruction of slurries supply and discharge, and be issued to slurries supply and discharge control module, flow and the start and stop of the each slurries supply and discharge of regulation and control pump.
8. a kind of wet process of FGD intelligent monitor system as claimed in claim 1, is characterized in that: described alarm unit is connected with monitoring unit; Described CPU (central processing unit) compares and judges and/or judge according to the slurries supply and discharge pump work status information of described slurries supply and discharge control module feedback described flue gas and desulfurization slurry operational factor real-time measuring data and described parameter range of control value, if when being judged as abnormal conditions and/or equipment and breaking down, CPU (central processing unit) is sent warning message, send monitoring unit to, monitoring unit shows anomaly parameter and/or the faulty equipment information of image conversion to the display screen of Visualized Monitoring System, and sends warning message to described alarm unit.
9. wet process of FGD intelligent monitor system as claimed in claim 1, it is characterized in that: described monitoring unit, data acquisition unit, slurries supply and discharge control module are connected with described CPU (central processing unit) by RS485 bus, described alarm unit is connected with communication unit, warning message can be sent on computing machine, mobile phone by internet, radio communication base station.
10. the implementation method of wet process of FGD intelligent monitor system as claimed in claim 1, is characterized in that: described method comprises the steps:
(1) desulfurizer flue gas and desulfurization slurry parameter steering order are issued to CPU (central processing unit) by monitoring unit, reads and store data and the information of CPU (central processing unit), and the data of CPU (central processing unit) and information are presented in the display device of monitoring unit;
(2) the operational factor Real-Time Monitoring of the sensor group being connected with data acquisition unit to desulfurizer flue gas and desulfurization slurry, and the measurement data of obtaining is sent to CPU (central processing unit);
(3) CPU (central processing unit) is carried out analysis and calculation to the parameter steering order of receiving, parameter real-time measuring data, slurries supply and discharge pump work status information, automatically generates the decision instruction of slurries supply and discharge, is issued to slurries supply and discharge control module;
(4) carry out by slurries supply and discharge control module the slurries supply and discharge decision instruction that CPU (central processing unit) generates automatically, in real time flow and the start and stop of the corresponding desulfurization slurry supply and discharge of regulation and control pump.
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