CN104316663A - Environment-friendly data acquisition and analysis sampling device and method for waste sewage system - Google Patents
Environment-friendly data acquisition and analysis sampling device and method for waste sewage system Download PDFInfo
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Abstract
The invention provides an environment-friendly data acquisition and analysis sampling device and an environment-friendly data acquisition and analysis sampling method for a waste sewage system. The device comprises a multifunctional sampling and pretreatment unit, a data acquisition and control unit and a wireless data transmission unit. With the adoption of universality of modular equipment and the sampling pretreatment device, the device is suitable for analytical statements of different manufacturers and different component detection, the scattered data can be acquired and processed and is transmitted to the previous level data acquisition center through wired or wireless data communication. Interface diversification between equipment is reduced, the reliability of water sampling is improved, the scattered data is processed in a centralized mode, and through combination of a PLC control system and a singlechip, various to-be-monitored scattered data needing to be monitored in a sewage disposal plant on site is well treated. Moreover, according to the modular composition structure, the maintenance cost of the system is minimized, the debugging time is minimized, the working efficiency is improved, the maintenance load of operators is reduced, and the sampling timeliness and data accuracy are improved.
Description
Technical field
The invention belongs to environmental technology field, be specifically related to effluent sewage system environment protection digital gather and analysis sampler and method thereof.
Background technology
Along with the development of society, water resource pollution is more and more serious, for improving our living environment, country requires more and more stricter to the emission standard of city domestic sewage, industrial waste sewage, in addition along with the enhancing of citizens' environment consciousness, increasing people starts the quality being concerned about residing environmental quality, requires environmental protection work transparence; Higher authority also needs that quantity is large, kind is many, the information of updating decision.All these, propose a problem that should draw attention to environmental monitoring department: how to set up practical, broad covered area, environment protection digital acquisition system that dirigibility is good, meet the demand of each side to environmental monitoring information.Domestic at present have the sewerage environment protection digital of many producers to gather product, also have many producers to provide various sewerage correlated sampling analysis meter in addition, but do not provide the analytical sampling device of more complete applicable different sewage system and environment protection digital to gather integrating device.As-Is is the supporting analytical sampling device of analytical table producer, environment protection digital collector is again that another family provides, like this, can produce electrically many on the one hand, instrument, the interface problems such as communication, every interface provided is different, operation maintenance personnel need be familiar with the product performance of different manufacturers, this specialized capability to operations staff requires to improve, on the other hand, the water quality of effluent sewage, the environment such as hydraulic pressure determine the type selecting of water analysis sampler, if it is improper to select, later stage can affect instrument measurement, light then cause measuring inaccurate, heavy then cause instrument to be damaged, product category is many in addition, on-the-spot increase and decrease equipment, equipment investment is many, virtually increase the financial cost of operation.
Summary of the invention
The object of the invention is: a kind of effluent sewage system environment protection digital gather and analysis sampler and method thereof are provided, realize modularized equipment, the versatility of sampling pre-processing device, be applicable to the analytical table of different manufacturers, heterogeneity detection, can after the data acquisition of dispersion also process, by wired or wireless data communication, deliver to upper level data acquisition center.Reduce the interface versatile of equipment room, increase water quality sampling reliability, the data centralization process of dispersion, by the combination of single-chip microcomputer and PLC control system, better to dispose of sewage the data various to be monitored of dispersion that treatment plant scene need monitor, and concentrate modularization sampler, be supplied to local environmental administration several data communication interface; Realized minimumization of system maintenance cost by this modular composition structure, debug time minimizes, and increases work efficiency, and reduces the maintenance of operations staff, protection sampling timeliness and data accuracy.
Technical scheme of the present invention is: a kind of effluent sewage system environment protection digital gather and analysis sampler, comprises multifunction sampling and pretreatment unit, data collection and control unit, wireless data transmission unit;
Described multifunction sampling and pretreatment unit comprise sample water inlet, sampling pump, tensimeter, the first backflow pressure maintaining valve, reflux withdrawal outlet, multi-way switching valve, throttling pressure maintaining valve, pipeline electromagnetic valve, the first two-position three way magnetic valve, the second two-position three way magnetic valve, the first suspended body flowmeter, the second suspended body flowmeter, the first analysis meter sample tap, the second analysis meter sample tap, multi-functional flow cell, the second backflow pressure maintaining valve;
Described sample water inlet connects sampling pump water inlet, and sampling pump water delivering orifice is provided with tensimeter, and sampling pump outlet conduit divides two tunnels: the first backflow pressure maintaining valve of leading up to is connected to reflux withdrawal outlet, and a road is connected to multi-way switching valve; Described multy-way switching Vavle switching Hou Fen tri-tunnel a: road connects the second two-position three way magnetic valve water inlet, and throttling pressure maintaining valve of leading up to is connected to the first two-position three way magnetic valve water inlet, and a road is connected to pipeline electromagnetic valve water inlet; Two road water delivering orifices of described second two-position three way magnetic valve: the second suspended body flowmeter of leading up to is connected to the second analysis meter sample tap, a road is connected to reflux withdrawal outlet; Two road water delivering orifices of described first two-position three way magnetic valve: the first suspended body flowmeter of leading up to is connected to the first analysis meter sample tap, a road is connected to reflux withdrawal outlet; The rising pipe of described pipeline electromagnetic valve divides two tunnels: a road is connected to the water inlet of multi-functional flow cell, and a road is connected to the second two-position three way magnetic valve water inlet; The overflow discharge mouth of described multi-functional flow cell is connected to reflux withdrawal outlet by the second backflow pressure maintaining valve;
Described data collection and control unit comprises data input-output unit, Programmable Logic Controller, button indicating lamp group and man-machine interface; Described multi-functional flow cell, sampling pump, pipeline electromagnetic valve, the first two-position three way magnetic valve, the second two-position three way magnetic valve signal are connected to data input-output unit; Data input-output unit, man-machine interface, button indicating lamp group signal are connected to Programmable Logic Controller, and Programmable Logic Controller is connected with wireless data transmission unit by serial interface cable.
Further, the inlet channel of described sampling pump is provided with sampling filter.Thick impurity in sample water can be filtered, extension fixture serviceable life.
Further, described multi-functional flow cell is provided with level switch, thermometer and two to three electrode thread fixed orifices; Described level switch signal is connected to data input-output unit.
Further, described data input-output unit can connect DI, DO, AI, AO, pulse signal.The various analog quantity and digital quantity signal being dispersed in each place on-the-spot can be collected PLC technology by data input-output unit to carry out processing rear realization control and monitoring.
Further, in described button indicating lamp group, button comprises and controlling on the spot, far, and pilot lamp comprises operation, stopping, fault.
The present invention also provides a kind of effluent sewage system environment protection digital gather and analysis sampling method, when sampling pump in button indicating lamp group, multi-way switching valve, pipeline electromagnetic valve, first two-position three way magnetic valve, when the select button of the second two-position three way magnetic valve is got to respectively with regard to position, by button in man-machine interface, manually open at random, stop sampling pump, sample period is set, manual selection multi-way switching valve, manual unlocking pipeline electromagnetic valve, first two-position three way magnetic valve or the second two-position three way magnetic valve, and control flow by throttling pressure maintaining valve, hand sampling selection is carried out to each analysis meter,
When in button indicating lamp group, the select button of sampling pump, multi-way switching valve, pipeline electromagnetic valve, the first two-position three way magnetic valve, the second two-position three way magnetic valve gets to controlled position far away respectively, Programmable Logic Controller detects analysis meter sampling requirement signal and the high and low liquid level interlocking signal of flow cell level switch, the start and stop of logic control sampling pump, the switch of pipeline electromagnetic valve, the first two-position three way magnetic valve and the second two-position three way magnetic valve; Sampling pump outlet first backflow pressure maintaining valve aperture size adjusts according to the pressure size of sampling pump delivery gauge, and control water sample pressure, multi-way switching valve is switched to the sample current road that will select according to actual analysis instrument sampling mode;
Programmable Logic Controller is sent to after the various analog quantity collected in multifunction sampling and pretreatment unit and digital quantity signal being processed by the packing of data input-output unit, the various data gathered show in real time by Programmable Logic Controller in man-machine interface, and give wireless data transmission unit, the data after packing are sent to upper level Surveillance center by wireless data transmission unit.
Further, described wireless data transmission unit adopts the high-performance embedded processor of ARM9 technical grade, equipment supports serial ports RS232 interface, RS485 interface, RS422 interface, TTL interface or USB interface, MODBUS communications protocol is adopted to carry out serial communication with Programmable Logic Controller, realize data acquisition, data transmission, equipment controlling functions, and can realize the backup of Double Data center, and majority receives data function according to central synchronous; Equipment provides online maintenance technology, keeps data terminal forever online; Wireless data transmission unit can provide the function of TCP transparent radio remote distance data transmission or the transparent radio remote distance data transmission of UDP, realizes the wireless communication function with higher level's control data corporation by GPRS.
Further, the various analog quantity collected in described multifunction sampling and pretreatment unit and digital quantity signal comprise: the start and stop of sampling pump and fault-signal, the switch of solenoid valve and fault-signal, the electric current of motor and voltage, reflux withdrawal rate of discharge, the temperature of thermometer, the turbidity of sample water, PH, SS, MLSS, total phosphorus, COD and ammonia nitrogen analog signals.
The invention has the beneficial effects as follows: the present invention is a kind of General Data Acquisition and analytical sampling device, be applicable to different manufacturers analysis meter sampling pre-service, and the various analog quantity and digital quantity signal being dispersed in each place on-the-spot can be collected PLC technology by data input-output unit to carry out processing rear realization control and monitoring, PLC technology realizes the functions such as data transmission, equipment control by wireless data transmission unit, and is sent to upper level Surveillance center by communications such as GPRS.
The present invention installs, it is simple, easy to operate to lay, the supporting sampling pre-service as multiple effluent sewage water analysis table of energy, decentralized data acquisition and process, wireless data transmission function, and ensure data transmission all-transparent, double watchdogs circuit, Auto-reconnect function, communication does not go offline, and is applicable to environment protection digital collection and the transmission of Various types of data.
The present invention adopts modularized equipment, realizes minimumization of system maintenance cost, and debug time minimizes, and increases work efficiency, and reduces the maintenance of operations staff, protection sampling timeliness and data accuracy.
Accompanying drawing explanation
Fig. 1 is the device floor map of the embodiment of the present invention.
In figure: sampling filter 1, sampling pump 2, first backflow pressure maintaining valve 3, pipeline electromagnetic valve 4, multi-way switching valve 5, first two-position three way magnetic valve 6, level switch 7, thermometer 8, tensimeter 9, multi-functional flow cell 10, electrode thread fixed orifice 11, sample water inlet 12, reflux withdrawal outlet 13, first analysis meter sample tap 14, data input-output unit 15, Programmable Logic Controller 16, button indicating lamp group 17, wireless data transmission unit 18, man-machine interface 19, throttling pressure maintaining valve 20, second two-position three way magnetic valve 21, second suspended body flowmeter 22, second analysis meter sample tap 23, second backflow pressure maintaining valve 24, first suspended body flowmeter 25.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
A kind of effluent sewage system environment protection digital gather and analysis sampler, comprises multifunction sampling and pretreatment unit, data collection and control unit, wireless data transmission unit.
Multifunction sampling and pretreatment unit: comprise sample water inlet 12, sampling pump 2, tensimeter 9, first backflow pressure maintaining valve 3, reflux withdrawal outlet 13, multi-way switching valve 5, throttling pressure maintaining valve 20, pipeline electromagnetic valve 4, first two-position three way magnetic valve 6, second two-position three way magnetic valve 21, first suspended body flowmeter 25, second suspended body flowmeter 22, first analysis meter sample tap 14, second analysis meter sample tap 23, multi-functional flow cell 10, second backflow pressure maintaining valve 24, electrode thread fixed orifice 11.
Sample water inlet 12 connects sampling pump 2 water inlet, and sampling pump 2 water delivering orifice is provided with tensimeter 9, and sampling pump 2 outlet conduit divides two tunnels: the first backflow pressure maintaining valve 3 of leading up to is connected to reflux withdrawal outlet 13, one road and is connected to multi-way switching valve 5.Multi-way switching valve 5 switches Hou Fen tri-tunnel: a road connects the second two-position three way magnetic valve 21 water inlet, and throttling pressure maintaining valve 20 of leading up to is connected to the first two-position three way magnetic valve 6 water inlet, and a road is connected to pipeline electromagnetic valve 4 water inlet.Two road water delivering orifices of the second two-position three way magnetic valve 21: the second suspended body flowmeter 22 of leading up to is connected to the second analysis meter sample tap 23, road and is connected to reflux withdrawal outlet 13.Two road water delivering orifices of the first two-position three way magnetic valve 6: the first suspended body flowmeter 25 of leading up to is connected to the first analysis meter sample tap 14, road and is connected to reflux withdrawal outlet 13.The rising pipe of pipeline electromagnetic valve 4 divides two tunnels: a road is connected to the water inlet of multi-functional flow cell 10, and a road is connected to the second two-position three way magnetic valve 21 water inlet.The overflow discharge mouth of multi-functional flow cell 10 is connected to reflux withdrawal outlet 13 by the second backflow pressure maintaining valve 24, and analysis meter electrode is fixed by the electrode thread fixed orifice 11 of customization and detected water sample.
Data collection and control unit: comprise data input-output unit 15, Programmable Logic Controller 16, button indicating lamp group 17 and man-machine interface 19.Multi-functional flow cell 10, sampling pump 2, pipeline electromagnetic valve 4, first two-position three way magnetic valve 6, second two-position three way magnetic valve 21 signal are connected to data input-output unit 15.Data input-output unit 15, man-machine interface 19, button indicating lamp group 17 signal are connected to Programmable Logic Controller 16, and Programmable Logic Controller 16 is connected with wireless data transmission unit 18 by serial interface cable.
Wherein, the inlet channel of sampling pump 2 is provided with sampling filter 1.Thick impurity in sample water can be filtered, extension fixture serviceable life.Multi-functional flow cell 10 is provided with level switch 7, thermometer 8 and two to three electrode thread fixed orifices 11; Level switch 7 is continued by auxiliary reclay, contactor, heat, wire is connected to data input-output unit 15.Described data input-output unit 15 can connect DI, DO, AI, AO, pulse signal.The various analog quantity and digital quantity signal being dispersed in each place on-the-spot can be collected PLC technology by data input-output unit to carry out processing rear realization control and monitoring.In described button indicating lamp group 17, button comprises and controlling on the spot, far, and pilot lamp comprises operation, stopping, fault.
Required and pipeline loss by analyser table sample discharge, calculate and select suitable sampling lift of pump.Multi-way switching valve is four tunnel manual switchover valves, and pipeline electromagnetic valve is bi-bit bi-pass pipeline electromagnetic valve,
When in button indicating lamp group, the select button of sampling pump, multi-way switching valve, pipeline electromagnetic valve, the first two-position three way magnetic valve, the second two-position three way magnetic valve is got to respectively with regard to position, by button in man-machine interface, manually open at random, stop sampling pump, sample period is set, manual selection multi-way switching valve, manual unlocking pipeline electromagnetic valve, the first two-position three way magnetic valve or the second two-position three way magnetic valve, and control flow by throttling pressure maintaining valve, hand sampling selection is carried out to each analysis meter.
When in button indicating lamp group, the select button of sampling pump, multi-way switching valve, pipeline electromagnetic valve, the first two-position three way magnetic valve, the second two-position three way magnetic valve gets to controlled position far away respectively, Programmable Logic Controller detects analysis meter sampling requirement signal and the high and low liquid level interlocking signal of flow cell level switch, the start and stop of logic control sampling pump, the switch of pipeline electromagnetic valve, the first two-position three way magnetic valve and the second two-position three way magnetic valve; Sampling pump outlet first backflow pressure maintaining valve aperture size adjusts according to the pressure size of sampling pump delivery gauge, and control water sample pressure, multi-way switching valve is switched to the sample current road that will select according to actual analysis instrument sampling mode.
By the various analog quantity that collects in multifunction sampling and pretreatment unit and digital quantity signal, comprise: the start and stop of sampling pump and fault-signal, the switch of solenoid valve and fault-signal, the electric current of motor and voltage, reflux withdrawal rate of discharge, the temperature of thermometer, the turbidity of sample water, PH, SS, MLSS, total phosphorus, COD and ammonia nitrogen analog signals.By being sent to Programmable Logic Controller after data input-output unit packing process, Programmable Logic Controller is connected with man-machine interface by serial interface cable, respectively corresponding interface routine, steering logic and control interface are write to Programmable Logic Controller and man-machine interface, Programmable Logic Controller is according to the open and close signal of the electric motor starting of procedure logical control system, stopping, solenoid valve, thus the sampling of property performance period or the sampling of continuous flow pond.After Programmable Logic Controller passes through AD, DA reading, conversion the various data of collection in worksite simultaneously, in man-machine interface display real-time status and parameter, and the opening of the pump of manual intervention can be realized by man-machine interface, stop, the open and close of solenoid valve, analyzing sampling period of data the controlling functions such as to arrange.Programmable Logic Controller is packed data simultaneously, and gives wireless data transmission unit, and the data after packing are sent to upper level Surveillance center by wireless data transmission unit.
Wireless data transmission unit is connected with Programmable Logic Controller by MODBUS communication cable, wireless data transmission unit adopts the high-performance embedded processor of ARM9 technical grade, equipment supports serial ports RS232 interface, RS485 interface, RS422 interface, TTL interface or USB interface, MODBUS communications protocol is adopted to carry out serial communication with Programmable Logic Controller, realize data acquisition, data transmission, equipment controlling functions, and can realize the backup of Double Data center, and majority receives data function according to central synchronous; Equipment provides online maintenance technology, keeps data terminal forever online; Wireless data transmission unit can provide the function of TCP transparent radio remote distance data transmission or the transparent radio remote distance data transmission of UDP, realizes the wireless communication function with higher level's control data corporation by GPRS.
Although the present invention with preferred embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (8)
1. an effluent sewage system environment protection digital gather and analysis sampler, is characterized in that: comprise multifunction sampling and pretreatment unit, data collection and control unit, wireless data transmission unit;
Described multifunction sampling and pretreatment unit comprise sample water inlet (12), sampling pump (2), tensimeter (9), first backflow pressure maintaining valve (3), reflux withdrawal outlet (13), multi-way switching valve (5), throttling pressure maintaining valve (20), pipeline electromagnetic valve (4), first two-position three way magnetic valve (6), second two-position three way magnetic valve (21), first suspended body flowmeter (25), second suspended body flowmeter (22), first analysis meter sample tap (14), second analysis meter sample tap (23), multi-functional flow cell (10), second backflow pressure maintaining valve (24),
Described sample water inlet (12) connects sampling pump (2) water inlet, sampling pump (2) water delivering orifice is provided with tensimeter (9), sampling pump (2) outlet conduit divides two tunnels: the first backflow pressure maintaining valve (3) of leading up to is connected to reflux withdrawal outlet (13), and a road is connected to multi-way switching valve (5); Described multi-way switching valve (5) switches Hou Fen tri-tunnel: a road connects the second two-position three way magnetic valve (21) water inlet, throttling pressure maintaining valve (20) of leading up to is connected to the first two-position three way magnetic valve (6) water inlet, and a road is connected to pipeline electromagnetic valve (4) water inlet; Two road water delivering orifices of described second two-position three way magnetic valve (21): the second suspended body flowmeter (22) of leading up to is connected to the second analysis meter sample tap (23), a road is connected to reflux withdrawal outlet (13); Two road water delivering orifices of described first two-position three way magnetic valve (6): the first suspended body flowmeter (25) of leading up to is connected to the first analysis meter sample tap (14), a road is connected to reflux withdrawal outlet (13); The rising pipe of described pipeline electromagnetic valve (4) divides two tunnels: a road is connected to the water inlet of multi-functional flow cell (10), and a road is connected to the second two-position three way magnetic valve (21) water inlet; The overflow discharge mouth of described multi-functional flow cell (10) is connected to reflux withdrawal outlet (13) by the second backflow pressure maintaining valve (24);
Described data collection and control unit comprises data input-output unit (15), Programmable Logic Controller (16), button indicating lamp group (17) and man-machine interface (19); Described multi-functional flow cell (10), sampling pump (2), pipeline electromagnetic valve (4), the first two-position three way magnetic valve (6), the second two-position three way magnetic valve (21) signal are connected to data input-output unit (15); Data input-output unit (15), man-machine interface (19), button indicating lamp group (17) signal are connected to Programmable Logic Controller (16), and Programmable Logic Controller (16) is connected with wireless data transmission unit (18) by serial interface cable.
2. a kind of effluent sewage system environment protection digital gather and analysis sampler according to claim 1, is characterized in that: the inlet channel of described sampling pump (2) is provided with sampling filter (1).
3. a kind of effluent sewage system environment protection digital gather and analysis sampler according to claim 1, is characterized in that: described multi-functional flow cell (10) is provided with level switch (7), thermometer (8) and two to three electrode thread fixed orifices (11); Described level switch (7) signal is connected to data input-output unit (15).
4. a kind of effluent sewage system environment protection digital gather and analysis sampler according to claim 1, is characterized in that: described data input-output unit (15) can connect DI, DO, AI, AO, pulse signal.
5. a kind of effluent sewage system environment protection digital gather and analysis sampler according to claim 1, is characterized in that: the middle button of described button indicating lamp group (17) comprises to be controlled on the spot, far, and pilot lamp comprises operation, stopping, fault.
6. an effluent sewage system environment protection digital gather and analysis sampling method, it is characterized in that: when sampling pump in button indicating lamp group, multi-way switching valve, pipeline electromagnetic valve, first two-position three way magnetic valve, when the select button of the second two-position three way magnetic valve is got to respectively with regard to position, by button in man-machine interface, manually open at random, stop sampling pump, sample period is set, manual selection multi-way switching valve, manual unlocking pipeline electromagnetic valve, first two-position three way magnetic valve or the second two-position three way magnetic valve, and control flow by throttling pressure maintaining valve, hand sampling selection is carried out to each analysis meter,
When in button indicating lamp group, the select button of sampling pump, multi-way switching valve, pipeline electromagnetic valve, the first two-position three way magnetic valve, the second two-position three way magnetic valve gets to controlled position far away respectively, Programmable Logic Controller detects analysis meter sampling requirement signal and the high and low liquid level interlocking signal of flow cell level switch, the start and stop of logic control sampling pump, the switch of pipeline electromagnetic valve, the first two-position three way magnetic valve and the second two-position three way magnetic valve; Sampling pump outlet first backflow pressure maintaining valve aperture size adjusts according to the pressure size of sampling pump delivery gauge, and control water sample pressure, multi-way switching valve is switched to the sample current road that will select according to actual analysis instrument sampling mode;
Programmable Logic Controller is sent to after the various analog quantity collected in multifunction sampling and pretreatment unit and digital quantity signal being processed by the packing of data input-output unit, the various data gathered show in real time by Programmable Logic Controller in man-machine interface, and give wireless data transmission unit, the data after packing are sent to upper level Surveillance center by wireless data transmission unit.
7. a kind of effluent sewage system environment protection digital gather and analysis sampling method according to claim 6, it is characterized in that: described wireless data transmission unit adopts the high-performance embedded processor of ARM9 technical grade, equipment supports serial ports RS232 interface, RS485 interface, RS422 interface, TTL interface or USB interface, MODBUS communications protocol is adopted to carry out serial communication with Programmable Logic Controller, realize data acquisition, data transmission, equipment controlling functions, and can realize the backup of Double Data center, and majority receives data function according to central synchronous; Equipment provides online maintenance technology, keeps data terminal forever online; Wireless data transmission unit can provide the function of TCP transparent radio remote distance data transmission or the transparent radio remote distance data transmission of UDP, realizes the wireless communication function with higher level's control data corporation by GPRS.
8. a kind of effluent sewage system environment protection digital gather and analysis sampling method according to claim 6, it is characterized in that: the various analog quantity collected in described multifunction sampling and pretreatment unit and digital quantity signal comprise: the start and stop of sampling pump and fault-signal, the switch of solenoid valve and fault-signal, the electric current of motor and voltage, reflux withdrawal rate of discharge, the temperature of thermometer, the turbidity of sample water, PH, SS, MLSS, total phosphorus, COD and ammonia nitrogen analog signals.
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