CN201762156U - Automatic detection dosing system used for water plant - Google Patents
Automatic detection dosing system used for water plant Download PDFInfo
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- CN201762156U CN201762156U CN201020245957XU CN201020245957U CN201762156U CN 201762156 U CN201762156 U CN 201762156U CN 201020245957X U CN201020245957X U CN 201020245957XU CN 201020245957 U CN201020245957 U CN 201020245957U CN 201762156 U CN201762156 U CN 201762156U
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Abstract
The utility model relates to an automatic detection dosing system used for a water plant, which comprises a coagulation automatic dosing measurement cabinet, a dosing pump and a solution barrel, wherein the dosing pump is respectively connected with the coagulation automatic dosing measurement cabinet and the solution barrel through a water pipe. The automatic detection dosing system also comprises a dosing flow-meter, and the dosing flow meter is respectively connected with the coagulation automatic dosing measurement cabinet and the dosing pump and used for measuring dosage of the dosing pump and feeding back to the coagulation automatic dosing measurement cabinet. The system improves the dosing accuracy, and further enhances water quality and stability and saves medicaments and finally achieves favorable effects of improving water quality and saving cost.
Description
Technical field
The utility model relates to the water manufacturing system of waterworks, relates in particular to the automatic detection medicine system that is used for water factory.
Background technology
The coagulation operation of waterworks water preparation process is the key link in the water technology, also is the principal element that influences water conditioning and constitute cost of water treatment, and whether coagulant charging quantity accurately directly has influence on the effect of water treatment.Under the condition that does not have the continuous monitoring instrument, generally all be that excessive use flocculation agent is to guarantee the water treatment effect.In fact, in water treatment procedure, the consumption of coagulating agent has an optimum value, is lower than or surpasses this optimum value all can not reach the optimum handling effect.Because coagulant charging quantity changes with the fluctuation of source discharge, turbidity, pH value, temperature, coagulant concentration and water quality, how accurately to control adding of coagulating agent, is perplexing the production of water factory for a long time.
The control principle frame of the former automatic control medicine system of water factory is (being the automatic control medicine system of prior art) as shown in Figure 1, carry out ratio according to flooding velocity and source water turbidity and add control, flooding velocity signal and source water turbidity signal are sent into the PLC register, after routine processes, export control signal, regulate the size that adds dose by frequency transformer frequency modulation control dosing pump rotating speed, the ratio of utilizing the preceding water turbidity of filter to control coagulated agent as preceding feedback signal, output water turbidity as the back feedback signal adds.But fact proved that this cover system operability in actual applications is not strong, because the height of source water turbidity is not a linear relationship with adding dose.So adopting flooding velocity and source water turbidity to carry out ratio, to add effect undesirable, still exist the dosing deficiency and cause the water quality can not be up to standard or add drug overdose and cause the high problem of cost.
Summary of the invention
The utility model is for solving above the deficiencies in the prior art, a kind of automatic measuring and controlling medicine system that adds that can accurately control coagulating agent is provided, it comprises coagulation Automatic Dosing observing and controlling cabinet, dosing pump and medical solution pool, described dosing pump links to each other with medical solution pool with described coagulation Automatic Dosing observing and controlling cabinet respectively by water pipe, it is characterized in that: also comprise the dosing under meter, described dosing under meter is connected with dosing pump with described coagulation Automatic Dosing observing and controlling cabinet respectively, measures the medicine dosage of described dosing pump and feeds back to described coagulation Automatic Dosing observing and controlling cabinet.
Preferably, also comprise flooding velocity instrument and turbidimeter, be installed in the water inlet of described coagulation Automatic Dosing observing and controlling cabinet, be respectively applied for the turbidity of measuring flooding velocity and source water.
Further preferred, described coagulation Automatic Dosing observing and controlling cabinet comprises industrial computer, PLC controller, data acquisition module, data transmission module and frequency transformer, described PLC controller is connected with described industrial computer, data acquisition module, data transmission module and frequency transformer respectively, and described data acquisition module is connected with turbidimeter with described dosing under meter, flooding velocity instrument respectively.
The beneficial effects of the utility model are:
This automatic measuring and controlling medicine system, the ratio that need not to utilize the preceding water turbidity of filter to control coagulated agent as preceding feedback signal, output water turbidity as the back feedback signal adds, simplified system greatly, simultaneously, water quality characteristics because of areal, carry out unit volume control method according to flooding velocity, be that medicine system that reference point control adds dose can make that to add dose more accurate with the unit volume amount of consumption of drugs, thereby can increase water quality.
Feedback result adjustment by the dosing under meter adds dose, can further improve the tolerance range of dosing and economizes on dose, saves cost.
In coagulation Automatic Dosing observing and controlling cabinet, use the PLC controller, the low and program updates convenience, flexible of cost, adaptability is strong.
Description of drawings
Fig. 1 is the control principle block diagram of the automatic control medicine system of prior art;
Fig. 2 is an automatic measuring and controlling medicine system functional block diagram of the present utility model;
Fig. 3 is the automatic measuring and controlling medicine system figure of an embodiment of the utility model.
Embodiment
Total characteristic according to Chinese water system, unit volume needs dose just can accurately summarize the influence to coagulation such as every apparent parameter such as turbidity, pH value, water temperature, water quality, so this system detects the total flooding velocity of waterworks technology, dispensing flow and three coagulation essential parameters of source water turbidity.The principle of native system is, analyzes different drainage patterns according to different source water turbidities, and different drainage patterns shows the influence of the every apparent parameter of different water quality (as turbidity, PH, water temperature, water quality etc.) to coagulation.Select the different medicine compositions (different unit volumes needs doses) that add according to different drainage pattern.Adopting unit volume to need dose control method (with the unit volume amount of consumption of drugs is main control, and analyzing drainage pattern with the detection resources water turbidity is auxiliary adjustment) to reach accurately adds.The unit volume of different drainage patterns needs the rule of thumb data of dose to obtain data to the stirring test of the unit volume amount of consumption of drugs of water quality by the report data of long-term production, repeatedly production technique water quality tune-up data and laboratory.
As shown in Figure 3, medical solution pool is connected with dosing pump by pipeline, and the rivers water source is handled to water factory's water-purifying process by pipe-line transportation, and coagulation Automatic Dosing observing and controlling cabinet is electrically connected with dosing pump, control dosing pump electric machine frequency and change the size that adds dose.Coagulation Automatic Dosing observing and controlling cabinet is electrically connected with the analog output signal of flooding velocity meter and source water turbidity instrument and dosing under meter simultaneously, the PLC of 4 to 20 milliamperes of analog current signals of acquisition instrument to the coagulation Automatic Dosing observing and controlling cabinet, PLC detects input signal after routine processes, export the frequency transformer of 4 to 20 milliamperes of analog current signals to the coagulation Automatic Dosing observing and controlling cabinet, drive the size that the dosing pump rotating speed is regulated the dosing flow by the frequency transformer output frequency, utilize dosing under meter feedback control dosage and reach accurately and add.Control process is as follows; Analyze different drainage patterns according to different source water turbidities, select the different medicine compositions (different unit volumes needs doses) that add according to different drainage pattern.Behind the selected drainage pattern of system, determine that by this drainage pattern unit volume needs dose, regulate the size that adds dose according to the size variation of the source water water yield, the add dose given by dosing under meter feedback PLC routine processes reaches accurately and adds.
Coagulation Automatic Dosing observing and controlling cabinet is electrically connected with dosing pump, dosing pump links to each other with medical solution pool by chemical feed pipe, the dosing under meter adds before the snack made with traditional Chinese medicines after being connected dosing pump, and be connected with dosing pump with coagulation Automatic Dosing observing and controlling cabinet respectively, measure the medicine dosage of described dosing pump, and feed back to described coagulation Automatic Dosing observing and controlling cabinet.Simultaneously, water inlet at coagulation Automatic Dosing observing and controlling cabinet is also installed under meter and turbidimeter, measuring the flow of water inlet and the turbidity of source water respectively (measures the flow of water inlet and the turbidity of source water and only supplies to be used for the accumulation of rule of thumb data and improvement in the future, and do not measure these two data native system is not impacted, still can normally use and obtain expected effect).
This system compares with original system, need not to use turbidimeter to measure preceding water turbidity of filter and output water turbidity, has simplified system, has reduced the equipment investment cost of system.
As shown in Figure 2, it is automatic measuring and controlling medicine system functional block diagram of the present utility model, its control principle is described as follows: adopt unit volume control method (also being the technological core of native system), with source water flooding quantity is the leading indicator of control medicine dosage, analyzing drainage pattern with the source water turbidity is the subcontrol index, utilize the dosing under meter as feedback signal, change according to the height of the size variation of source water flooding velocity and source water turbidity and to regulate the dosing flow in real time and reach accurately and add, guarantee that water conditioning is of fine quality.The PLC controller is gathered source water flooding quantity, source water turbidity and three signals of dosing flow simultaneously, and how many amount of consumption of drugs that at first calculates unit volume according to the size and the source water turbidity of flooding velocity (promptly be that how many kilogram (unit volume medicine consumption Kg/KM every kiloton water amount of consumption of drugs is for
3), and calculation result sent into the PLC register.For example, the regional present source water turbidity in Shenzhen is at 11NTU to 50NTU, the medicine consumption is that every kiloton water is 5.5 kilograms, at present the flooding quantity of waterworks is 5000M3 per hour, to be current water quality medicine consumption be 27.5KG per hour to calculation result, data collecting module collected signal by the PLC controller also outputs control signals to frequency transformer after treatment, reach the size that adjusting adds dose by frequency modulation control dosing pump rotating speed, utilize the given medicine consumption of dosing under meter feedback control to reach accurate dosing coagulant.
As following table one is the data of Shenzhen water factory.
Table one
| Flooding velocity (rice 3) | Source water turbidity (NTU) | Unit powder consumption (Kg/KM 3) | Medicine consumption (KG) per hour |
| 5000 or 6000 | 0 to 10 | 6 | 5 * 6=30 or 6 * 6=36 |
| 5000 or 7000 | 11 to 50 | 5.5 | 5 * 5.5=27.5 or 7 * 5.5=38.5 |
| 5000 or 8000 | 51 to 100 | 5.0 | 5 * 5=25 or 8 * 5=40 |
| 5000 or 9000 | 101 to 150 | 4.5 | 5 * 4.5=22.5 or 9 * 4.5=40.5 |
| 5000 or 9000 | 151 to 200 | 5.5 | 5 * 5.5=27.5 or 9 * 5.5=49.5 |
| 5000 or 9000 | 201 to 250 | 6.0 | 5 * 6=30 or 9 * 6=54 |
| 5000 or 9000 | 250 to 300 | 6.5 | 5 * 6.5=32.5 or 9 * 6.5=58.5 |
| 5000 or 9000 | 301 to 350 | 6.8 | 5 * 6.8=34 or 9 * 6.8=61.2 |
| 5000 or 9000 | 351 to 400 | 7.0 | 5 * 7=35 or 9 * 7=63 |
| 5000 or 9000 | 401 to 500 | 7.5 | 5 * 7.5=37.5 or 9 * 7.5=67.5 |
Difference between this control method and the existing control method is: existing control method is a leading indicator with source water turbidity and flooding velocity, and come the dosage of ratio control medicine according to the height of the size of flooding velocity and source water turbidity, utilize preceding water turbidity of filter and output water turbidity to control dosage as feedback, the disadvantage of this method is, because of the size and the dosage of source water turbidity is not linear relationship, can there be dispensing and causes quality problem so adopt before the filter water turbidity and output water turbidity to control dosage as feedback.And in this control method, carrying out ratio with the unit volume need dose index of flooding velocity adds, and need dose for according to adding with unit volume that the source water turbidity is analyzed the selected different drainage patterns of drainage pattern, utilize the dosing under meter to reach accurately with the set-point comparison of PLC routine processes and add as feedback.Get final product with reference to predetermined medicine dosage of the corresponding adjustment of the data in the table one.For example, when the source water turbidity was 51NTU-100NTU, unit powder consumption was 5.0Kg/KM3, and the medicine dosage only need calculate according to the flooding velocity ratio and get final product; When the source water turbidity was 101NTU-150NTU, unit powder consumption was 4.5Kg/KM3, and the medicine dosage remains to calculate according to the flooding velocity ratio and gets final product.
And see that according to the result of actual motion this control method has significantly improved medicine and added tolerance range, and improve the quality and the stability of water outlet and saved medicine, finally reach the good result of increasing water quality and saving cost.
As following table two are Shenzhen water factory service datas in May, 2010 in 2008.
Table two
According to table two, amount of consumption of drugs significantly reduces, and the turbidity of output water and pH value are stable more, reasonable.
Above content is in conjunction with specifically implementing embodiment to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. automatic measuring and controlling medicine system that is used for water factory, comprise coagulation Automatic Dosing observing and controlling cabinet, dosing pump and medical solution pool, described dosing pump links to each other with medical solution pool with described coagulation Automatic Dosing observing and controlling cabinet respectively by water pipe, it is characterized in that: also comprise the dosing under meter, described dosing under meter is connected with dosing pump with described coagulation Automatic Dosing observing and controlling cabinet respectively, measures the medicine dosage of described dosing pump and feeds back to described coagulation Automatic Dosing observing and controlling cabinet.
2. automatic measuring and controlling medicine system as claimed in claim 1 is characterized in that: also comprise flooding velocity instrument and turbidimeter, be installed in the water inlet of described coagulation Automatic Dosing observing and controlling cabinet, be respectively applied for the turbidity of measuring flooding velocity and source water.
3. automatic measuring and controlling medicine system as claimed in claim 1 or 2, it is characterized in that: described coagulation Automatic Dosing observing and controlling cabinet comprises industrial computer, PLC controller and frequency transformer, described PLC controller is connected with frequency transformer with described industrial computer respectively, described PLC controller comprises data acquisition module and data transmission module, and described data acquisition module is connected with turbidimeter with described dosing under meter, flooding velocity instrument respectively.
4. automatic measuring and controlling medicine system as claimed in claim 3 is characterized in that: automatic measuring and controlling medicine system as claimed in claim 1 is characterized in that: described dosing pump also is equipped with safety overflow valve, current equalizer and Inlet and outlet water electrically-controlled valve.
5. automatic measuring and controlling medicine system as claimed in claim 4 is characterized in that: described solution tank also is equipped with electrically-controlled valve and gas blower.
6. automatic measuring and controlling medicine system as claimed in claim 4 is characterized in that: also comprise the PH meter that is used to measure the source water ph value, this PH meter is installed in the water inlet of described coagulation Automatic Dosing observing and controlling cabinet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020245957XU CN201762156U (en) | 2010-07-02 | 2010-07-02 | Automatic detection dosing system used for water plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020245957XU CN201762156U (en) | 2010-07-02 | 2010-07-02 | Automatic detection dosing system used for water plant |
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| CN201762156U true CN201762156U (en) | 2011-03-16 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976468A (en) * | 2012-12-07 | 2013-03-20 | 上海应用技术学院 | Automatic chemical adding machine in water treatment and applications thereof |
| CN104529009A (en) * | 2014-12-31 | 2015-04-22 | 苏州工业职业技术学院 | Automatic waste water treatment system and technology |
| CN105800755A (en) * | 2016-05-12 | 2016-07-27 | 上海应用技术学院 | Water quality online monitoring system and method of wastewater coagulation treatment unit |
| CN105800708A (en) * | 2014-10-21 | 2016-07-27 | 蔡留凤 | Agent adding method of movable wastewater treatment equipment capable of automatically calculating agent adding dosage |
| CN107792994A (en) * | 2017-09-26 | 2018-03-13 | 百环境投资江苏有限公司 | A kind of textile printing and dyeing wastewater processing method |
| CN109264840A (en) * | 2018-11-19 | 2019-01-25 | 山信软件股份有限公司 | A kind of horizontal sedimentation tank control system for adding drugs |
| CN109932198A (en) * | 2019-02-19 | 2019-06-25 | 中国家用电器研究院 | Circulating water supply system is used in a kind of test of water purifier |
| CN112062241A (en) * | 2020-08-24 | 2020-12-11 | 肖文云 | Dosing device capable of accurately controlling dosing amount and dosing method |
| CN112827661A (en) * | 2020-12-29 | 2021-05-25 | 内蒙古黄陶勒盖煤炭有限责任公司 | Intelligent medicine dispensing system |
-
2010
- 2010-07-02 CN CN201020245957XU patent/CN201762156U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976468A (en) * | 2012-12-07 | 2013-03-20 | 上海应用技术学院 | Automatic chemical adding machine in water treatment and applications thereof |
| CN105800708A (en) * | 2014-10-21 | 2016-07-27 | 蔡留凤 | Agent adding method of movable wastewater treatment equipment capable of automatically calculating agent adding dosage |
| CN104529009A (en) * | 2014-12-31 | 2015-04-22 | 苏州工业职业技术学院 | Automatic waste water treatment system and technology |
| CN105800755A (en) * | 2016-05-12 | 2016-07-27 | 上海应用技术学院 | Water quality online monitoring system and method of wastewater coagulation treatment unit |
| CN107792994A (en) * | 2017-09-26 | 2018-03-13 | 百环境投资江苏有限公司 | A kind of textile printing and dyeing wastewater processing method |
| CN109264840A (en) * | 2018-11-19 | 2019-01-25 | 山信软件股份有限公司 | A kind of horizontal sedimentation tank control system for adding drugs |
| CN109932198A (en) * | 2019-02-19 | 2019-06-25 | 中国家用电器研究院 | Circulating water supply system is used in a kind of test of water purifier |
| CN112062241A (en) * | 2020-08-24 | 2020-12-11 | 肖文云 | Dosing device capable of accurately controlling dosing amount and dosing method |
| CN112827661A (en) * | 2020-12-29 | 2021-05-25 | 内蒙古黄陶勒盖煤炭有限责任公司 | Intelligent medicine dispensing system |
| CN112827661B (en) * | 2020-12-29 | 2022-06-03 | 内蒙古黄陶勒盖煤炭有限责任公司 | Intelligent medicine dispensing system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20150702 |
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