CN101887064A - Automatic water quality monitoring system - Google Patents

Automatic water quality monitoring system Download PDF

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Publication number
CN101887064A
CN101887064A CN 201010199871 CN201010199871A CN101887064A CN 101887064 A CN101887064 A CN 101887064A CN 201010199871 CN201010199871 CN 201010199871 CN 201010199871 A CN201010199871 A CN 201010199871A CN 101887064 A CN101887064 A CN 101887064A
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China
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water
valve
connects
automatic
pump
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张孝
李大治
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Xiamen Lawlink Development Co Ltd
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Xiamen Lawlink Development Co Ltd
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Priority to CN 201010199871 priority Critical patent/CN101887064A/en
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Abstract

The invention provides an automatic water quality monitoring system, relating to water quality monitoring systems. The automatic water quality monitoring system has remote diagnosis and control functions, higher automation level, more convenient operation and maintenance, better working stability and lower running cost. The system is provided with a central system and at least one subsystem, wherein the central system is remotely arranged; the subsystems are arranged on site; the subsystems are communicated with the central system via a communication network; the central system is provided with a computer, a router, a network switch, a data server, a WEB server, a network video server, a video television wall and a short message alarm processor; the router is connected with the network switch, the data server, the WEB server, the network video server and the short message alarm processor; and the video television wall is connected with the network video server. The computer is connected with the data server, the WEB server and the short message alarm processor by the Ethernet and finishes the control functions, such as data query, parameter configuration and the like.

Description

Automatic water quality monitoring system
Technical field
The present invention relates to water quality monitoring system, especially relate to a kind of automatic water quality monitoring system.
Background technology
In latter stage in 20th century, the automatic water quality monitoring technology is in China's widespread use.In recent years, along with the enhancing of environmental consciousness, water quality monitored automatically seemed more and more important.In order to understand the water quality situation in river in real time; the influence of control accident; in recent years; China sets up automatic water quality monitoring station (hereinafter to be referred as water station) successively on each emphasis river, lake; monitor quality of water environment in real time and pollute situation of change by water station, for protection, management and the water prevention and cure of pollution of water environment provide important information.
At present, domestic and international some shortcomings of automatic water quality monitoring system ubiquity: the pre-treatment as source water is perfect inadequately, influences water analysis; The system equipment automatization level is not high, cause operation and maintenance inconvenience, manpower be equipped with more, systematic running cost is more high.
Notification number provides the wetting system of adopting of a kind of automatic water quality monitoring station special use for the utility model patent of CN201053931, comprise the pump case that contains water inlet and water delivering orifice that can be fixed on riverbed or the riverbank, the water gathering tube that is communicated with the pump case water inlet by universal turning joint, be loaded on the water pump in the pump case, the water gathering tube tail end swims in the water surface and is positioned at 0.5m depths, underwater part filtrator, and water-supply-pipe one end passes the pump case water delivering orifice and is communicated with pump outlet.
Notification number changes according to the river silt content for the utility model patent of CN2692673 provides a kind of by the computing machine central controller, realizes the heavily silt-carrying river automatic water quality monitoring water sample pretreatment unit of multiple water sample work of treatment pattern automatically.Comprise computing machine central controller and the submersible pump of being located in the river (or taking by weighing water pump), submersible pump (or taking by weighing water pump) is connected by pipeline and current Buffer Pool, current Buffer Pool bottom is connected with the inclined tube settling tank, the spilling water of inclined tube settling tank is along communicating with the advection settling tank, the advection settling tank passes through valve, pressure pump and solid-liquid separator and intermediate water tank are connected, intermediate water tank passes through valve, pressure pump, filtrator, pipeline and sample water tank are connected, the sample water tank is through the instrument water pump, valve and monitoring instrument are connected, clean the water source and pipeline is arranged on the current Buffer Pool by valve, the inclined tube settling tank, the advection settling tank, in ask the upper and lower of water tank and sample water tank, cleaning the water source connects by valve and underwater monitoring instrument automatic flushing device, the sample water tank is communicated with automatic sampler by valve, can effectively remove silt, system operational parameters rationally is set.
Publication number is that the application for a patent for invention of CN1996023 discloses a kind of moving type quick automatic monitoring system for water quality, contain the sampling section of in hull, loading, contain suction pump and water tank, on a sidewall of water tank, be provided with the water inlet pipe that is connected with the suction pump water side, on another sidewall, be provided with rising pipe, the water that flows out from rising pipe detects for water quality testing meter, and water tank bottom is established drainpipe; Water quality testing meter and gps receiver are contained in the test section; The terminal processes part contains the data collecting card and the industrial computer that receive the water quality information that water quality testing meter transmits, industrial computer with water quality information and geographic information processing after GPRS network passes to the telemanagement center.
Summary of the invention
The purpose of this invention is to provide a kind of have remote diagnosis and control function, automatization level is higher, and operation and maintenance are more convenient, better working stability, the automatic water quality monitoring system that operating cost is lower.
The present invention is to be core with online analytical instrument of water quality, uses the comprehensive online auto monitoring system that modern sensor, computing machine, automatic measurement technology, relevant analysis software and communication network are formed.Purpose of the present invention is achieved through the following technical solutions.
Automatic water quality monitoring system of the present invention is provided with centring system and at least 1 subsystem; Described centring system is long-range setting, and described subsystem is for being provided with on the spot, and subsystem is by communication network and centring system communication;
Centring system is provided with computer, router, the network switch, data server, WEB server, network video server, video TV wall and SMS alarm processor; Router is connected with the network switch, data server, WEE server, network video server, SMS alarm processor respectively, and the video TV wall is connected with network video server.The computer expert crosses Ethernet and is connected with data server, WEB server and SMS alarm processor, finishes control function such as data query and parameter configuration.
Subsystem is provided with gets the water distribution pretreatment unit, control module, automatic water quality monitoring unit and data acquisition and transmission unit, get the process alarm signal output part of water distribution pretreatment unit and adopt water distribution and finish the signal input end that signal output part connects control module respectively, the cycle enabling signal output terminal of control module and adopt the signal input end that the distribution apparatus control signal output ends accesses the water distribution pretreatment unit respectively, the water distribution of adopting of control module is finished the water distribution of adopting that signal output part connects data acquisition and transmission unit and is finished signal input part, the water quality that the water quality of data acquisition and transmission unit starts the automatic monitoring means of monitor signal output terminal water receiving matter starts the monitor signal input end, the analysis result output termination data acquisition and the transmission unit input end of automatic water quality monitoring unit.
The described water distribution pretreatment unit of getting is provided with and adopts water mechanism, water distribution mechanism, wiper mechanism, waste liquid tank and connecting pipe each other, wherein:
Adopt water mechanism and be provided with the water intaking pump, motorized valve, tensimeter, flowmeter and hand valve, the water intaking pump soaks to place and waits the waters of sampling, and the water intaking pump connects the sand basin of water distribution mechanism through motorized valve and flowmeter, and tensimeter is located on the motorized valve rising pipe, the motorized valve rising pipe connects hand valve, and the hand valve rising pipe connects the waste liquid mouth;
Water distribution mechanism is provided with sand basin, peristaltic pump, motorized valve, hand valve, test specimens water tumbler and retaining valve, and the water inlet of sand basin connects the water delivering orifice of the motorized valve of adopting water mechanism, is provided with liquid level sensor, filter screen, filter core and ultrasonic transducer in the sand basin.The rising pipe of sand basin connects peristaltic pump, the rising pipe of peristaltic pump connects the water inlet of motorized valve, the water delivering orifice of motorized valve connects the import of test specimens water tumbler, be provided with liquid level sensor in the test specimens water tumbler, the outlet of test specimens water tumbler connects retaining valve, the water delivering orifice of retaining valve connects the water inlet of motorized valve and hand valve, and the water delivering orifice of motorized valve and the water delivering orifice of hand valve connect waste liquid tank altogether;
Wiper mechanism can be provided with clarified water pump, gas retaining valve, air compressor machine, tensimeter, electric diaphragm pump and algicide cup, the external clear water of clarified water pump source, and tensimeter is located on the rising pipe of clarified water pump.The rising pipe of clarified water pump is connected to 4 branch roads, the 1st branch road by retaining valve, motorized valve is gentle connects air compressor machine with retaining valve; Article 2, branch road connects electric diaphragm pump and algicide cup by retaining valve, article 3, branch road connects the motorized valve water inlet of adopting water mechanism by motorized valve, article 4, branch road connects the rinse mouth of the sand basin of water distribution mechanism by the water delivering orifice of motorized valve, the rising pipe of motorized valve also is connected to hand valve, and the hand valve water delivering orifice connects the sand basin of water distribution mechanism.
Described control module can be provided with PLC Programmable Logic Controller, auxiliary reclay, A.C. contactor, direct supply etc., and auxiliary reclay is electrically connected with PLC Programmable Logic Controller and A.C. contactor respectively.Described control module also can be provided with PLC expansion input/output module and expanded circuit, and expanded circuit is electrically connected with PLC expansion input/output module.
Described automatic water quality monitoring unit can adopt automatic Water Test Kits.
Described data acquisition and transmission unit can be provided with industrial computer, I/O capture card, AD transition card and data transmission module, it mainly acts on is the display control program man-machine interface, and be responsible for from automatic water quality monitoring unit and PLC image data, and with the data transmission that collects to centring system, accept the Long-distance Control of centring system.Data acquisition mainly cooperates configuration class software to finish by industrial computer with the function of transmission unit.The automatic monitoring means output terminal of input port water receiving matter of I/O capture card, the automatic monitoring means output terminal of input port water receiving matter of A/D transition card, the output port of the output port of I/O capture card and A/D transition card connects industrial computer respectively, the output port one tunnel of industrial computer connects control module through the configuration interface, another road of the output port of industrial computer connects the data transmission module input end through subsystem database and data communication software, and the data transmission module output terminal is by the server communication of transmission network and centring system.Industrial computer adopts the integrated rack and panel construction of going up, and can be fit to various industrial environments and vehicle-mounted use.
Principle of work of the present invention is summarized as follows:
Centring system is responsible for the Monitoring Data that collection subsystem sends, and Monitoring Data is carried out statistical study, consolidated statement, trend analysis, Web issue etc.Subsystem passes through robot control system(RCS), each analytical instrument of control native system is finished water-quality test, and the collection instrument test data, test data is stored in the native system database, by network (ISDN/ADSL/LAN/GSM/GPRS/CDMA) data are sent to centring system then.
Get the work of water distribution pretreatment unit and finish control action automatically by the PLC Programmable Logic Controller in the control module.Automatic control flow chart comprises following process:
Pipeline cleans: judge the system equipment state, judge whether sampling spot has water sample, the control cleaning equipment is finished outdoor pipeline cleaning, moisturizing action; Cleaning way comprises that clear water is counter and cleans, and the anti-cleaning way of gas-vapor mix guarantees that pipeline is not subjected to residual influence of water intaking last time.Scavenging period can freely be set according to field condition.
Pre-service water tank water inlet sample: judge the intake pipe line state, find the water intaking circuit failure, automatically switch to standby water intaking pipeline.Sample introduction success back empties water sample residual in the outdoor pipeline automatically, prevents that the winter pipeline is icing, summer bacteria breed.The time of emptying can freely be set according to field condition.
Staticly settle: sand basin can adopt clock-type sand basin principle design, adopts ultrasonic transducer to carry out ultrasonic cleaning during the precipitation, prevents that dirt from adhering at chamber wall, and peels off the polluter that adheres on the pulverized particles.Settling time and ultrasonic cleaning time can freely be set according to the water quality situation.Used ultrasonic transducer in the water station water distribution system; in water intaking postprecipitation process, utilized hyperacoustic cavitation effect; the COD that adheres on suspension, the grains of sand, total phosphorus composition are separated; be ground into fine particles or solvable composition, make these polluters in the water sample not influenced by three-stage filtration.In addition, ultrasound wave also has cleanup action, can quicken precipitation process, prevents that soil from adhering on precipitation pool wall and sensor, greatly reduces the manual maintenance frequency.Simultaneously, the data before the ultrasonic transducer work have been gathered and have been finished, and can not cause turbidity, dissolved oxygen DO etc. to produce the test deviation because of hyperacoustic introducing.It is 40kHz that transducer is selected frequency, owing to outside people's ear resolution scope, therefore can not produce noise pollution.
Analytical instrument is to water sample analysis: the controlled work of peristaltic pump is assigned to test specimens water tumbler behind each analytical instrument of water quality to the water sample supernatant through precipitation, for the analytical instrument test.The sample water tumbler is provided with sample connection, when needs manually keep sample comparison, directly opens sample valve and gets final product.
System is cleaned: clean the whole water distribution system of getting, prevent from test next time is caused cross pollution.Cleaning way adopts clear water instead to clean and steam mixes the anti-dual mode that cleans, and the cleaning position comprises: interior conduit, precipitation pre-service water tank, sample water tumbler, filtration unit and Wucan are counted sensor etc.Scavenging period can freely be set according to cleaning actual effect.
Remove algae: have algae etc. in the long-term use of water intake system in the pipeline and multiply, thereby test parameter is exerted an influence, can utilize high voltage pulse gas-vapor mix liquid to finish during the system operation automatically, reduce algae and generate to the washing away of pipeline.In addition system design special manual control remove the algae knob remove algae so that add algicide.Open and manually remove the algae button, system can begin to carry out the algae process of removing by the program extraction algicide that configures, and removes and uses the clear water purging system after algae is finished, and prevents that algicide is residual.
Compare with existing water quality monitoring system, the present invention has following outstanding advantage and remarkable result:
The present invention is to be core with online analytical instrument of water quality, uses the comprehensive online auto monitoring system that modern sensor, computing machine, automatic measurement technology, relevant analysis software and communication network are formed.Wherein:
1) subsystem adopts automatic analytical instrument of water quality, has stablely, and data are accurate, the outstanding advantage of easy maintenance;
2) complete pre-treating technology, make source water before entering testing tool through multi stage precipitation and filtration step by step, effectively anti-locking system and instrument pipeline stop up, source water can not influence water quality after treatment;
3) reliable communication mechanism, system can support popular multiple communication modes (GPRS/CDMA/LAN/ADSL) at present at an easy rate, adapts to complicated region and communication condition, the reliability of enhanced system communication and dirigibility automatically;
4) employing is based on the on-site supervision program of standard industry configuration software, friendly man-machine interface is provided, make the user can see on-the-spot operation conditions intuitively, beautiful interface, easy to operate, can in time find operating problem by the system state detection, and in time send alerting signal, the notice operation maintenance personnel in time deal with, and shielded the possibility that system is produced maloperation by the maloperation prompting, thus the effectively normal operation of safeguards system.
5) full-automatic non-maintaining design, removes device such as algae and makes the operation that system can long-term stability at the automatic cleaning by getting the water distribution pretreatment unit, prolongs the maintenance period of system greatly, and can accomplish long-term unmanned, greatly reduces the manual maintenance amount;
6) remove algae mechanism efficiently, realize removing algae and algae removal, effectively prevent to multiply the change of water quality that causes line clogging and source water in course of conveying, to cause because of algae by physics and chemical method;
7) can realize secretary's prompt facility easily by the SMS module that adds of expansion, can realize fault alarm, data query and remote control function, really realize mobile office whenever and wherever possible by the mobile phone mode.
In addition, can be provided with safe cut protection device in the subsystem, it is in good health that system can be guaranteed in abominable power supply environment, prolongs the serviceable life of instrument and system.Even because of long-time the power failure causes shutting down, system also can recover normal operation automatically when power recovery.Owing to be provided with advanced thunder resisting equipment and carry out comprehensive lightning Protection Design, make system not only effectively prevent direct lightning strike in the thunder and lightning prone areas, can also prevent the induction thunder that causes by power lead and communication line, protect high-grade, precision and advanced instrument and equipment to avoid the thunderbolt damage.The present invention can be the basis according to user's specific requirement and actual conditions, in conjunction with rational global design scheme, is equipped with corresponding advanced instrument equipment.
This shows advanced person's remote diagnosis control but the present invention possesses skills, automaticity height, simple to operate, easy to maintenance, outstanding advantage and remarkable result that the overall operation expense is lower.
Description of drawings
Fig. 1 is that the structure of the embodiment of the invention is formed synoptic diagram.
Fig. 2 is the structural representation of getting the water distribution pretreatment unit of the subsystem of the embodiment of the invention.
Fig. 3 is the structural representation of adopting water mechanism among Fig. 2.
Fig. 4 is the structural representation of the water distribution mechanism among Fig. 2.
Fig. 5 is the structural representation of the wiper mechanism among Fig. 2.
Fig. 6 is the automatic Control work process flow diagram of getting the water distribution pretreatment unit of the subsystem of the embodiment of the invention.
Fig. 7 is the data acquisition of subsystem of the embodiment of the invention and the data acquisition transmission principle logic diagram of transmission unit.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Referring to Fig. 1, the present invention is provided with centring system and at least 1 subsystem; Described centring system is long-range setting, and described subsystem is for being provided with on the spot, and subsystem is by communication network A and centring system communication;
Centring system is provided with computer 11, router one 2, the network switch 13, data server 14, WEB server 15, network video server 16, video TV wall 17, SMS alarm processor 18; Router one 2 is connected with the network switch 13, data server 14, WEB server 15, network video server 16, SMS alarm processor 18 respectively, and video TV wall 17 is connected with network video server 16.Computer 11 is connected with data server 14, WEB server 15, SMS alarm processor 18 by Ethernet, finishes control function such as data query and parameter configuration.
Subsystem is provided with gets water distribution pretreatment unit 21, control module 22, automatic water quality monitoring unit 23, data acquisition and transmission unit 24, get the process alarm signal output part of water distribution pretreatment unit 21 and adopt water distribution and finish the signal input end that signal output part connects control module 22 respectively, the cycle enabling signal output terminal of control module 22 and adopt the signal input end that the distribution apparatus control signal output ends accesses water distribution pretreatment unit 21 respectively, the water distribution of adopting of control module 22 is finished the water distribution of adopting that signal output part connects data acquisition and transmission unit 24 and is finished signal input part, the water quality that the water quality of data acquisition and transmission unit 24 starts the automatic monitoring means 23 of monitor signal output terminal water receiving matter starts the monitor signal input end, the analysis result output termination data acquisition and transmission unit 24 input ends of automatic water quality monitoring unit 23.
Referring to Fig. 2~5, to get water distribution pretreatment unit (as shown in Figure 2) and be provided with and adopt water mechanism, water distribution mechanism, wiper mechanism, waste liquid tank Y and connecting pipe each other, connecting pipe adopts UPVC hard feed pipe.Wherein:
Adopt water mechanism (as shown in Figure 3) and be provided with 2 water intaking pumps 31 and 32,3 electrical ball valves 36~38,2 tensimeters 317 and 318, flowmeter 330 and manual ball valves 331.2 water intaking pumps 31 and 32 soak to place waits the waters of sampling, the rising pipe of water intaking pump 31 connects electrical ball valve 36, the rising pipe of water intaking pump 2 connects electrical ball valve 37, and tensimeter 317 is located on the rising pipe of water intaking pump 31, and tensimeter 318 is located on the rising pipe of water intaking pump 32.Electrical ball valve 36 is connected with flowmeter 330 with 37 rising pipe, the rising pipe of flowmeter 330 is connected with electrical ball valve 38, the rising pipe of electrical ball valve 38 connects the sand basin 341 of water distribution mechanism, establish manual ball valve 331 on the rising pipe of electrical ball valve 38, the rising pipe of manual ball valve 331 meets waste liquid tank Y (as shown in Figure 2).When adopting the work of water mechanism, water intaking pump 31, water intaking 32,3 electrical ball valves 36~38 of pump and flowmeter 330 etc. are controlled in real time by control module.
Water distribution mechanism (as shown in Figure 4) is provided with sand basin 41, peristaltic pump 45, electric T-shaped valve 49, test specimens water tumbler 442 and 443, retaining valve 444 and 445, electrical ball valve 415 and 416 and manual ball valve 446~448.The water inlet of sand basin 41 connects the water delivering orifice (as shown in Figure 2) of the electrical ball valve 48 of adopting water mechanism, is provided with liquid level sensor 420, filter screen 411, filter core 412 and ultrasonic transducer 413 in the sand basin 41.The rising pipe of sand basin 41 connects peristaltic pump 45, the rising pipe of peristaltic pump 45 connects the water inlet of electric T-shaped valve 49,2 water delivering orifices of electric T-shaped valve 49 connect test specimens water tumbler 442 and 443 respectively, test specimens water tumbler 442 and 443 connects retaining valve 444 and 445 respectively, retaining valve 444 and 445 water delivering orifice connect the water inlet of electrical ball valve 415 and manual ball valve 446 jointly, and electrical ball valve 415 meets waste liquid tank Y (as shown in Figure 2) jointly with the water delivering orifice of manual ball valve 446.Test specimens water tumbler 442 is provided with liquid level sensor 421, and test specimens water tumbler 443 is provided with liquid level sensor 426.Sand basin 41 is provided with blow-off pipe, and blow-off pipe connects electrical ball valve 416 and manual ball valve 448, and electrical ball valve 416 meets waste liquid mouth Y jointly with the water delivering orifice of manual ball valve 448.When water distribution mechanism worked, peristaltic pump 45, electric T-shaped valve 49, ultrasonic transducer 413, each liquid level sensor etc. were controlled in real time by control module.
Wiper mechanism (as shown in Figure 5) is provided with clarified water pump 53, gas retaining valve 54, air compressor machine 55, electrical ball valve 510~514, manual ball valve 532, tensimeter 519 and 522, retaining valve 551~553, electric diaphragm pump 52 and algicide cup 51.Clarified water pump 53 external clear water sources, the rising pipe of clarified water pump 53 is through retaining valve 551 and connect electrical ball valve 511~514, and tensimeter 519 is located on the rising pipe of clarified water pump 53.The rising pipe of clarified water pump 53 is provided with 4 branch roads, and the 1st branch road connects retaining valve 552, electrical ball valve 510, gas retaining valve 54 and air compressor machine 55 successively, and gas is provided with tensimeter 522 with retaining valve 54 escape pipes; Article 2, branch road connects retaining valve 553, electric diaphragm pump 52 and algicide cup 51 successively.Article 3, branch road connects electrical ball valve 511, and the water delivering orifice of electrical ball valve 511 connects the water inlet (as shown in Figure 2) of the electrical ball valve 38 of adopting water mechanism; Article 4, branch road connects electrical ball valve 514, electrical ball valve 512 and electrical ball valve 513 water inlets successively.Simultaneously referring to Fig. 2 and 3, the water delivering orifice of electrical ball valve 514, electrical ball valve 512 and electrical ball valve 513 all connects the rinse mouth of sand basin 41, electrical ball valve 514 rising pipes connect sand basin 41, the rising pipe of electrical ball valve 514 also is connected to manual ball valve 532, and manual ball valve 532 water delivering orifices connect the sand basin 41 of water distribution mechanism.The water delivering orifice of electrical ball valve 512 leads to filter screen 411, can wash filter screen 411, and the water delivering orifice of electrical ball valve 513 leads to filter core 412, can wash filter core 412, and the water delivering orifice of electrical ball valve 513 is connected with the water inlet of peristaltic pump 45.During wiper mechanism work, electrical ball valve 510 is opened, on-off action by electrical ball valve 511~514 realizes the cleaning to parts such as each pipeline, filter screen 411, filter core 412, test specimens water tumbler 542 and 543 respectively, multiple modes such as cleaning way comprises that clear water cleans, pressurized air purge and gas-vapor mix cleaning.And can in algicide cup 51, add algicide, realize the algae that removes of getting water distribution system is cleaned by electric diaphragm pump 52 work.Wiper mechanism work is controlled in real time by control module.
Referring to Fig. 6, be illustrated as the logical program implementation of pretreatment unit.Supervisors such as pipeline cleaning, pre-service sample introduction, system's cleaning all are various functions that the cooperation by each element shown in Fig. 2 realizes.The automatic Control work flow process of getting the water distribution pretreatment unit is mainly (as shown in Figure 2):
1) cycle of receiving starts trigger pip
2) carry out the pipeline cleaning procedure.Obtain the pressure state of air compressor machine output and the water position status in Cai Shui waters simultaneously.When cleaning procedure was carried out: open valve 511, valve 36 (or valve 37) automatically, clarified water pump 53 was started working, and valve 510 is opened, and the pressurized air in the air compressor machine mixes with clear water, and the concussion formula is finished work such as the cleaning of water intaking pipeline and the pump moisturizing of fetching water.
3) carry out pre-service sample introduction program.When pre-service sample introduction program is carried out: open valve 36 (or valve 37), valve 38 automatically, adopt water pump 31 (or adopting water pump 32) and start working, water sample is squeezed into settling pit 41,, regulate flow of inlet water by valve 331 by liquid level gauge 420 control pond middle water levels.
4) finish the precipitation clarification of water sample according to the duration of setting, ultrasonic transducer is opened in the precipitation process, peels off the test substance of grains of sand surface attachment in the water when quickening precipitation.
5) analytical instrument sample introduction.When analytical instrument sample introduction program is carried out: peristaltic pump 45 work, water sample passed through filter core 412 suction sample water tumblers 442, by the water level of liquid level gauge 421 detection sample water tumblers 442, after water is full, valve 49 is opened water sample and is assigned to sample water tumbler 443, detects the water level of sample water tumbler 43 by liquid level gauge 26.Sample water tumbler 43 water samples completely each analytical instrument of back control begin test.
6) system is cleaned.After above step all is finished, the executive system cleaning procedure.When the system cleaning procedure is carried out, finish the cleaning of settling pit 41, screen pack 411, filter core 412 respectively, clean and finish late gate 416 and opens, waste liquid is discharged by the cooperation of clarified water pump 53 and valve 514, valve 512, valve 513.To this work period end.
Described control module can be provided with PLC Programmable Logic Controller, auxiliary reclay, A.C. contactor, direct supply etc., and auxiliary reclay is electrically connected with PLC Programmable Logic Controller and A.C. contactor respectively.Described control module also can be provided with PLC expansion input/output module and expanded circuit, expanded circuit is electrically connected with PLC expansion input/output module, in order to realize the control output of total system, each submodule state input is gathered, in real time and the function of data acquisition and transmission unit data interaction, wherein, the AC portion of control module adopts the three-phase five-wire mode power supply, inlet wire resupplies rear end equipment through after the AC voltage regulator earlier, U is responsible for supplying with two water intaking pumps and air compressor machine mutually, V is responsible for supplying with clarified water pump (scavenging pump) and water distribution mechanism mutually, W supplies with UPS mutually and uses, and UPS then supplies with each analytical instrument, each valve of part of data acquisition and water distribution mechanism; And under the civil power disconnection, finish the feedback of reporting to the police that has a power failure.The DC circuit of control module partly is mainly used in PLC imput output circuit and expanded circuit.The PLC upper end is an input signal, and the PLC lower end is an output signal.Input signal comprises: control handle input, system state select input, warning to import, system pressure is reported to the police input, the liquid level sensor feedback is imported and valve state is imported; Output signal comprises: scavenging pump, the control signal of adopting water pump, air compressor machine and each electrically operated valve etc.For high-power electric appliance control, adopt by the indirect control of auxiliary reclay control A.C. contactor and finish, improve system's operation stability.
Referring to Fig. 7, described data acquisition and transmission unit are provided with industrial computer 93, I/O capture card, A/D transition card 92 and data transmission module 96 etc.The main effect of data acquisition and transmission unit is the display control program man-machine interface, and is responsible for from automatic water quality monitoring unit 23 and PLC Programmable Logic Controller image data, and with the data transmission that collects to centring system, accept the Long-distance Control of centring system.Data acquisition mainly cooperates configuration class software to finish by industrial computer with the function of transmission unit.Automatic monitoring means 23 output terminals of the input port water receiving matter of I/O capture card 91, automatic monitoring means 23 output terminals of the input port water receiving matter of A/D transition card 92, the output port of the output port of I/O capture card 91 and A/D transition card 92 connects industrial computer 93 respectively, the output port one tunnel of industrial computer 93 connects control module 22 through configuration interface 94, another road of the output port of industrial computer 93 connects data transmission module 96 input ends through subsystem database 97 and data communication software 95, and data transmission module 96 output terminals are by the server communication of transmission network A and centring system.Industrial computer adopts the integrated rack and panel construction of going up, and can be fit to various industrial environments and vehicle-mounted use.

Claims (7)

1. automatic water quality monitoring system is characterized in that being provided with centring system and at least 1 subsystem, and subsystem is by communication network and centring system communication;
Centring system is provided with computer, router, the network switch, data server, WEB server, network video server, video TV wall and SMS alarm processor; Router is connected with the network switch, data server, WEB server, network video server, SMS alarm processor respectively, the video TV wall is connected with network video server, and the computer expert crosses Ethernet and is connected with data server, WEB server and SMS alarm processor;
Subsystem is provided with gets the water distribution pretreatment unit, control module, automatic water quality monitoring unit and data acquisition and transmission unit, get the process alarm signal output part of water distribution pretreatment unit and adopt water distribution and finish the signal input end that signal output part connects control module respectively, the cycle enabling signal output terminal of control module and adopt the signal input end that the distribution apparatus control signal output ends accesses the water distribution pretreatment unit respectively, the water distribution of adopting of control module is finished the water distribution of adopting that signal output part connects data acquisition and transmission unit and is finished signal input part, the water quality that the water quality of data acquisition and transmission unit starts the automatic monitoring means of monitor signal output terminal water receiving matter starts the monitor signal input end, the analysis result output termination data acquisition and the transmission unit input end of automatic water quality monitoring unit.
2. automatic water quality monitoring system according to claim 1 is characterized in that the described water distribution pretreatment unit of getting is provided with and adopts water mechanism, water distribution mechanism, wiper mechanism, waste liquid tank and connecting pipe.
3. as automatic water quality monitoring system as described in the claim 2, it is characterized in that the described water mechanism of adopting is provided with the water intaking pump, motorized valve, tensimeter, flowmeter and hand valve, the water intaking pump soaks to place waits the waters of sampling, the water intaking pump connects the sand basin of water distribution mechanism through motorized valve and flowmeter, tensimeter is located on the motorized valve rising pipe, and the motorized valve rising pipe connects hand valve, and the hand valve rising pipe connects the waste liquid mouth.
4. as automatic water quality monitoring system as described in the claim 2, it is characterized in that described water distribution mechanism is provided with sand basin, peristaltic pump, motorized valve, hand valve, test specimens water tumbler and retaining valve, the water inlet of sand basin connects the water delivering orifice of the motorized valve of adopting water mechanism, is provided with liquid level sensor, filter screen, filter core and ultrasonic transducer in the sand basin; The rising pipe of sand basin connects peristaltic pump, the rising pipe of peristaltic pump connects the water inlet of motorized valve, the water delivering orifice of motorized valve connects the import of test specimens water tumbler, be provided with liquid level sensor in the test specimens water tumbler, the outlet of test specimens water tumbler connects retaining valve, the water delivering orifice of retaining valve connects the water inlet of motorized valve and hand valve, and the water delivering orifice of motorized valve and the water delivering orifice of hand valve connect waste liquid tank altogether.
5. as automatic water quality monitoring system as described in the claim 2, it is characterized in that described wiper mechanism is provided with clarified water pump, gas retaining valve, air compressor machine, tensimeter, electric diaphragm pump and algicide cup, the external clear water of clarified water pump source, tensimeter is located on the rising pipe of clarified water pump; The rising pipe of clarified water pump is connected to 4 branch roads, the 1st branch road by retaining valve, motorized valve is gentle connects air compressor machine with retaining valve; Article 2, branch road connects electric diaphragm pump and algicide cup by retaining valve, article 3, branch road connects the motorized valve water inlet of adopting water mechanism by motorized valve, article 4, branch road connects the rinse mouth of the sand basin of water distribution mechanism by the water delivering orifice of motorized valve, the rising pipe of motorized valve also is connected to hand valve, and the hand valve water delivering orifice connects the sand basin of water distribution mechanism.
6. automatic water quality monitoring system according to claim 1 is characterized in that described automatic water quality monitoring unit is automatic Water Test Kits.
7. automatic water quality monitoring system according to claim 1, it is characterized in that described data acquisition and transmission unit are provided with industrial computer, the I/O capture card, AD transition card and data transmission module, the automatic monitoring means output terminal of input port water receiving matter of I/O capture card, the automatic monitoring means output terminal of input port water receiving matter of A/D transition card, the output port of the output port of I/O capture card and A/D transition card connects industrial computer respectively, the output port one tunnel of industrial computer connects control module through the configuration interface, another road of the output port of industrial computer connects the data transmission module input end through subsystem database and data communication software, and the data transmission module output terminal is by the server communication of transmission network and centring system.
CN 201010199871 2010-06-10 2010-06-10 Automatic water quality monitoring system Pending CN101887064A (en)

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CN107246058A (en) * 2017-06-07 2017-10-13 李红星 A kind of intelligent city's drainage
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CN102594595A (en) * 2012-02-08 2012-07-18 中国科学院上海微系统与信息技术研究所 Hybrid system for pipe network monitoring based on wireless sensor networks
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CN110850051A (en) * 2019-11-29 2020-02-28 广西华投检测技术有限公司 Water quality environment monitoring method
CN111644260A (en) * 2020-06-19 2020-09-11 台州登尚机电有限公司 Control system of direct current food waste disposer
CN112099430A (en) * 2020-09-29 2020-12-18 广州博涛生物技术有限公司 Water quality online instrument flexible combination system for nitrogen and phosphorus removal control

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Application publication date: 20101117