CN101672756A - Full-automatic pollution index value online monitoring instrument - Google Patents
Full-automatic pollution index value online monitoring instrument Download PDFInfo
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- CN101672756A CN101672756A CN200810196509A CN200810196509A CN101672756A CN 101672756 A CN101672756 A CN 101672756A CN 200810196509 A CN200810196509 A CN 200810196509A CN 200810196509 A CN200810196509 A CN 200810196509A CN 101672756 A CN101672756 A CN 101672756A
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Abstract
The invention discloses a full-automatic pollution index value online monitoring instrument, which comprises a water inlet pump, a pressure maintaining valve, an inlet valve, a vent valve, an outlet valve, a metering cylinder, a drainage valve, a by-pass outlet valve and a monitoring center. The opening and closing of each electromagnetic valve are directly controlled by a programmable logic controller to circularly control tested water flow. The programmable logic controller automatically calculates the time in which the tested water flow enters the metering cylinder from a microporous filtering film until reaching a set volume, stores the time value, repeatedly controls the tested water flow after a set interval, stores the time value again and automatically carries out logical data processing so as to accomplish a monitoring process, obtain a pollution index value, and store and display the pollution index value on a touch screen. Simultaneously, the programmable logic controller controls the monitoring center to replace the microporous filtering film, and then carries out a next monitoring process after a set testing period, thereby realizing full-automatic pollution index value monitoring, not only saving labor, but also avoiding man-made measuring errors and ensuring measuring accuracy.
Description
Technical field
The present invention relates to a kind of pollution index value monitoring instrument, especially a kind of full-automatic pollution index value online monitoring instrument.
Background technology
Present pollution index value (SDI) monitoring principle is manually to try the water with the pressure of 30psi to be measured, filters to metering cylinder the needed time T of the water that record filtering is 500 milliliters by the miillpore filter of 0.45 micron of diameter 47mm micro-pore diameter
0, repeat again to continue to filter 15 minutes, note the needed time T of the water that filters 500 milliliters once more
15, by following formula: SDI=100 * (1-T
0÷ T
15) ÷ 15, draw the SDI value by substitution numerical value; Through behind the setting-up time, change filter membrane and repeat above operation once more, thereby guarantee the qualification of test water.The process of (changing miillpore filter, by manual time-keeping and deal with data etc.) because manually-operated is comparatively loaded down with trivial details and occur accidental error (artificial visually examine's metering cylinder and manually pinch a manual time-keeping have the operation uncertainty) easily; The tester can not leave and each tester once can only test a measurement point in the test process of each measurement point again, test water is splashed in the waste of manpower, manually-operated process in addition not only influences testing precision but also often cause working environment excess surface water humidity.
Summary of the invention
In order to address the above problem, the invention provides a kind of full-automatic pollution index value online monitoring instrument, it is full-automatic that the SDI monitoring is realized, saves manpower and measurement accurately.
The present invention for the technical scheme that solves its technical matters and adopt is:
A kind of full-automatic pollution index value online monitoring instrument, mainly comprise: intake pump, pressure maintaining valve, water intaking valve, vent valve, outlet valve, metering cylinder, draining valve, bypass outlet valve and monitoring center, the water inlet of described intake pump is communicated with the test water source, the water delivering orifice of intake pump is selected one by pressure maintaining valve and is communicated in the water inlet of water intaking valve and the water inlet of vent valve, and the water delivering orifice of described vent valve is communicated with outside the monitoring instrument; The water delivering orifice of described water intaking valve is communicated with monitoring center's water inlet, and first water delivering orifice of described monitoring center is communicated with the water inlet of outlet valve and the water inlet of bypass outlet valve simultaneously, and the water delivering orifice of described bypass outlet valve is communicated with outside the monitoring instrument; The water delivering orifice of described outlet valve is communicated with the intake-outlet of metering cylinder and the water inlet of draining valve simultaneously, and the water delivering orifice of described draining valve is communicated with outside the monitoring instrument; The inner formation one water inlet path of described monitoring center is provided with (removable) miillpore filter in this water inlet path, described water inlet path two ends are communicated with the water inlet and first water delivering orifice of monitoring center respectively; Second water delivering orifice of described monitoring center is communicated with monitoring instrument outer (water that spills when changing miillpore filter to get rid of prevents monitoring center's ponding);
Described water intaking valve, vent valve, outlet valve, draining valve, bypass outlet valve and monitoring center are all controlled by PLC (Programmable Logic Controller), PLC carries out the timing of observation process automatically to be handled, described metering cylinder is provided with liquid level sensor, and this liquid level sensor number of delivering a letter is in PLC; PLC controls the opening and closing of water intaking valve, vent valve, outlet valve, draining valve and bypass outlet valve according to the signal of liquid level sensor, and control monitoring center replacing miillpore filter, finishes pollution index value monitoring action according to the following steps:
One. exhaust: when needing monitoring, open PLC, intake pump and vent valve are opened in PLC control, and test water flows through intake pump, pressure maintaining valve and vent valve and directly flows out monitoring instrument (thereby a small amount of gas that test water can be flowed into the initial stage is like this discharged detection system assurance testing precision);
Two. monitoring: open observation process through PLC after the evacuation time of setting, this observation process is made up of first and second twice measuring process, and be setting in advance the interval time of twice measuring process, this first time measuring process as follows:
1) vent valve and draining valve are closed in .PLC control, open water intaking valve and outlet valve simultaneously, and pick up counting, (after exhaust) test water flows through the water inlet path of water intaking valve, monitoring center and miillpore filter and the outlet valve in the water inlet path flows directly in the metering cylinder;
2). when the metering cylinder middle water level rises to the capacity of setting, liquid level sensor is passed to PLC with signal, PLC stops timing and preserves the very first time data of metering cylinder to designated water level, water intaking valve, outlet valve are closed in control simultaneously, opening water discharge valve and bypass outlet valve, test water in the metering cylinder flows through draining valve and directly flows out monitoring instrument, and remaining test water flows through the bypass outlet valve and directly flows out monitoring instrument in the monitoring center simultaneously;
Measuring process repeats measuring process for the first time for the second time, and preserves second time data of metering cylinder to designated water level;
Three. data processing: through after first and second twice measuring process, PLC control monitoring center changes miillpore filter, PLC carries out the logical process of first and second twice measurement data automatically simultaneously, the pollution index value is come out by screen displaying and preserve historical survey record to supply inquiry;
Four. circulation: by the test period of setting, repeating step one, two and three.
Described water intaking valve, vent valve, outlet valve, draining valve, bypass outlet valve and pressure maintaining valve are all solenoid valve.
The setting capacity that described metering cylinder water level rises is 500ml.
Described evacuation time, interval time and test period be by the touch-screen setting, (respectively monitor link and set the SDI monitoring frequency to cooperate).
The invention has the beneficial effects as follows: the interval time in the evacuation time that this example is set PLC in advance and controlled by touch-screen, test period and the observation process between twice measuring process, the opening and closing of directly controlling each solenoid valve by PLC come the flow process of cycle control test water, PLC calculates the test water miillpore filter of flowing through automatically and flows in the metering cylinder and rise to time of setting capacity, and preserves this time value; After setting interval time, repeat to control the test water flow process once more, and the holding time value is also carried out the data logical process automatically once more, finish an observation process with this, draw the SDI value and preserve and be shown on the touch-screen, the monitoring center of PLC control simultaneously changes miillpore filter, carries out next observation process once more after setting time test period, thereby realized full-automatic SDI monitoring, both saved manpower, avoided artificial measuring error again, and guaranteed to measure accurately.
Description of drawings
Fig. 1 is a synoptic diagram of the present invention.
Embodiment
Embodiment: a kind of full-automatic pollution index value online monitoring instrument, mainly comprise: intake pump 1, pressure maintaining valve 2, water intaking valve 3, vent valve 4, outlet valve 5, metering cylinder 6, draining valve 7, bypass outlet valve 8 and monitoring center 9, the water inlet 11 of described intake pump is communicated with the test water source, the water delivering orifice 12 of intake pump is selected one by pressure maintaining valve 2 and is communicated in the water inlet 31 of water intaking valve and the water inlet 41 of vent valve, and the water delivering orifice 42 of described vent valve is communicated with outside the monitoring instrument; The water delivering orifice 32 of described water intaking valve is communicated with the water inlet 91 of monitoring center, and first water delivering orifice 92 of described monitoring center is communicated with the water inlet 51 of outlet valve and the water inlet 81 of bypass outlet valve simultaneously, and the water delivering orifice 82 of described bypass outlet valve is communicated with outside the monitoring instrument; The water delivering orifice 52 of described outlet valve is communicated with the intake-outlet 60 of metering cylinder and the water inlet 71 of draining valve simultaneously, and the water delivering orifice 72 of described draining valve is communicated with outside the monitoring instrument; Described monitoring center 9 inner formation one water inlet paths are provided with (removable) miillpore filter in this water inlet path, described water inlet path two ends are communicated with the water inlet 91 and first water delivering orifice 92 of monitoring center respectively; Second water delivering orifice 93 of described monitoring center is communicated with monitoring instrument outer (water that spills when changing miillpore filter to get rid of prevents monitoring center's ponding);
Described water intaking valve 3, vent valve 4, outlet valve 5, draining valve 7, bypass outlet valve 8 and monitoring center 9 are all controlled by PLC (Programmable Logic Controller), PLC carries out the timing of observation process automatically to be handled, described metering cylinder 6 is provided with liquid level sensor, and this liquid level sensor number of delivering a letter is in PLC; PLC controls the opening and closing of water intaking valve 3, vent valve 4, outlet valve 5, draining valve 7 and bypass outlet valve 8 according to the signal of liquid level sensor, and control monitoring center 9 replacing miillpore filters, finishes pollution index value monitoring action according to the following steps:
One. exhaust: when needing monitoring, open PLC, intake pump 1 and vent valve 4 are opened in PLC control, and test water flows through intake pump 1, pressure maintaining valve 2 and vent valve 4 and directly flows out monitoring instrument (thereby a small amount of gas discharge detection system that test water can be flowed into the initial stage like this guarantees testing precision);
Two. monitoring: open observation process through PLC after the evacuation time of setting, this observation process is made up of first and second twice measuring process, and be setting in advance the interval time of twice measuring process, this first time measuring process as follows:
1) vent valve 4 and draining valve 7 are closed in .PLC control, open water intaking valve 3 and outlet valve 5 simultaneously, and pick up counting, (after exhaust) test water flows through the water inlet path of water intaking valve 3, monitoring center 9 and miillpore filter and the outlet valve 5 in the water inlet path flows directly in the metering cylinder 6;
2). when metering cylinder 6 middle water levels rise to the capacity of setting, liquid level sensor is passed to PLC with signal, PLC stops timing and preserves the very first time data of metering cylinder 6 to designated water level, water intaking valve 3, outlet valve 5 are closed in control simultaneously, opening water discharge valve 7 and bypass outlet valve 8, test water in the metering cylinder 6 flows through draining valve 7 and directly flows out monitoring instrument, and remaining test water flows through bypass outlet valve 8 and directly flows out monitoring instrument in the monitoring center 9 simultaneously;
Measuring process repeats measuring process for the first time for the second time, and preserves second time data of metering cylinder to designated water level;
Three. data processing: through after first and second twice measuring process, PLC control monitoring center 9 changes miillpore filter, PLC carries out the logical process of first and second twice measurement data automatically simultaneously, pollution index value (SDI) is come out by screen displaying and preserve historical survey record to supply inquiry;
Four. circulation: by the test period of setting, repeating step one, two and three.
Described water intaking valve 3, vent valve 4, outlet valve 5, draining valve 7, bypass outlet valve 8 and pressure maintaining valve 2 are all solenoid valve.
The setting capacity that described metering cylinder 6 water levels rise is 500ml.
Described evacuation time, interval time and test period be by the touch-screen setting, (respectively monitor link and set the SDI monitoring frequency to cooperate).
The course of work of the present invention is: set evacuation time, interval time and test period by touch-screen, open PLC (Programmable Logic Controller), intake pump 1 and vent valve 4 are opened in PLC control, this moment, test water flow through intake pump 1 after pressure maintaining valve 2 voltage stabilizings, flow out monitoring instrument by vent valve 4, thereby a small amount of gas that test water can be flowed into the initial stage is like this discharged detection system assurance testing precision; Open measuring process through PLC after the evacuation time of setting, vent valve 4 is closed in control, open water intaking valve 3, outlet valve 5 simultaneously, and pick up counting, test water after exhaust flows into the water inlet path of monitoring center 9 by water intaking valve 3, the miillpore filter by monitoring center after outlet valve 5 flow in the metering cylinders 6; Described metering cylinder 6 is provided with liquid level sensor, when metering cylinder 6 middle water levels rise to the 500ml of setting, liquid level sensor is passed to PLC with signal, PLC stops timing and preserves time data for the first time, water intaking valve 3, solenoid valve 5 are closed in control simultaneously, opening water discharge valve 7 and bypass outlet valve 8, the test water in the metering cylinder 6 flows out monitoring instrument through draining valve 7, and remaining test water flows out monitoring instrument through bypass outlet valve 8 in the monitoring center 9 simultaneously; After interval time, after PLC opens the measuring process preservation time data second time once more, control monitoring center 9 changes miillpore filter, PLC carries out the logical process of first and second time time data automatically simultaneously, and the pollution index value is come out by screen displaying and preserved historical survey record for inquiry (so just having finished a SDI monitoring) the most at last; By touch-screen can be provided with PLC test period (as test period be three hours, carried out an observation process in then per three hours), to set the SDI monitoring frequency.
Claims (4)
1. full-automatic pollution index value online monitoring instrument, it is characterized in that: mainly comprise: intake pump (1), pressure maintaining valve (2), water intaking valve (3), vent valve (4), outlet valve (5), metering cylinder (6), draining valve (7), bypass outlet valve (8) and monitoring center (9), the water inlet of described intake pump (11) is communicated with the test water source, the water delivering orifice of intake pump (12) is selected one by pressure maintaining valve and is communicated in the water inlet (31) of water intaking valve and the water inlet (41) of vent valve, and the water delivering orifice of described vent valve (42) is communicated with outside the monitoring instrument; The water delivering orifice of described water intaking valve (32) is communicated with monitoring center's water inlet (91), first water delivering orifice (92) of described monitoring center is communicated with the water inlet (51) of outlet valve and the water inlet (81) of bypass outlet valve simultaneously, and the water delivering orifice of described bypass outlet valve (82) is communicated with outside the monitoring instrument; The water delivering orifice of described outlet valve (52) is communicated with the intake-outlet of metering cylinder and the water inlet of draining valve (71) simultaneously, and the water delivering orifice of described draining valve (72) is communicated with outside the monitoring instrument; The inner formation one water inlet path of described monitoring center is provided with miillpore filter in this water inlet path, and described water inlet path two ends are communicated with the water inlet and first water delivering orifice of monitoring center respectively; Second water delivering orifice (93) of described monitoring center is communicated with outside the monitoring instrument;
Described water intaking valve, vent valve, outlet valve, draining valve, bypass outlet valve and monitoring center are all by Controlled by Programmable Controller, Programmable Logic Controller carries out the timing of observation process automatically to be handled, described metering cylinder is provided with liquid level sensor, and this liquid level sensor number of delivering a letter is in Programmable Logic Controller; Programmable Logic Controller is controlled the opening and closing of water intaking valve, vent valve, outlet valve, draining valve and bypass outlet valve according to the signal of liquid level sensor, and control monitoring center replacing miillpore filter, finishes pollution index value monitoring action according to the following steps:
One. exhaust: when needing monitoring, open Programmable Logic Controller, Controlled by Programmable Controller is opened intake pump and vent valve, and test water flows through intake pump, pressure maintaining valve and vent valve and directly flows out monitoring instrument;
Two. monitoring: open observation process through Programmable Logic Controller after the evacuation time of setting, this observation process is made up of first and second twice measuring process, and be setting in advance the interval time of twice measuring process, this first time measuring process as follows:
1). Controlled by Programmable Controller is closed vent valve and draining valve, opens water intaking valve and outlet valve simultaneously, and picks up counting, and test water flows through the water inlet path of water intaking valve, monitoring center and miillpore filter and the outlet valve in the water inlet path flows directly in the metering cylinder;
2). when the metering cylinder middle water level rises to the capacity of setting, liquid level sensor is passed to Programmable Logic Controller with signal, Programmable Logic Controller stops timing and preserves the very first time data of metering cylinder to designated water level, water intaking valve, outlet valve are closed in control simultaneously, opening water discharge valve and bypass outlet valve, test water in the metering cylinder flows through draining valve and directly flows out monitoring instrument, and remaining test water flows through the bypass outlet valve and directly flows out monitoring instrument in the monitoring center simultaneously;
Measuring process repeats measuring process for the first time for the second time, and preserves second time data of metering cylinder to designated water level;
Three. data processing: through after first and second twice measuring process, Controlled by Programmable Controller monitoring center changes miillpore filter, Programmable Logic Controller carries out the logical process of first and second twice measurement data automatically simultaneously, the pollution index value is come out by screen displaying and preserve historical survey record to supply inquiry;
Four. circulation: by the test period of setting, repeating step one, two and three.
2. full-automatic pollution index value online monitoring instrument according to claim 1 is characterized in that: described water intaking valve, vent valve, outlet valve, draining valve, bypass outlet valve and pressure maintaining valve are all solenoid valve.
3. full-automatic pollution index value online monitoring instrument according to claim 1 is characterized in that: the setting capacity that described metering cylinder water level rises is 500ml.
4. full-automatic pollution index value online monitoring instrument according to claim 1 is characterized in that: described evacuation time, interval time and test period are by the touch-screen setting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810196509A CN101672756A (en) | 2008-09-09 | 2008-09-09 | Full-automatic pollution index value online monitoring instrument |
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|---|---|---|---|
| CN200810196509A CN101672756A (en) | 2008-09-09 | 2008-09-09 | Full-automatic pollution index value online monitoring instrument |
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| CN101672756A true CN101672756A (en) | 2010-03-17 |
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| CN200810196509A Pending CN101672756A (en) | 2008-09-09 | 2008-09-09 | Full-automatic pollution index value online monitoring instrument |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213640A (en) * | 2011-04-11 | 2011-10-12 | 福州洁博利感应设备有限公司 | Automatic water-testing and pressure-testing control system of solenoid valve |
| CN102519550A (en) * | 2011-12-12 | 2012-06-27 | 南京中电自动化有限公司 | Online silt density index (SDI) analyzing instrument level optical detection method and device |
| CN106124368A (en) * | 2016-08-30 | 2016-11-16 | 合众高科（北京）环保技术股份有限公司 | A kind of pollution index test device and method of testing thereof |
| CN106769763A (en) * | 2016-12-20 | 2017-05-31 | 辽宁科技大学 | A kind of covering layer infiltration automatic data acquisition device controlled by PLC |
| CN109682943A (en) * | 2019-01-31 | 2019-04-26 | 隆义轩 | A kind of water pollution index's detection device being able to achieve auto-manual measuring and calculating |
| CN111562351A (en) * | 2020-05-28 | 2020-08-21 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water |
| CN114965926A (en) * | 2022-05-20 | 2022-08-30 | 德斯科技术(南京)有限公司 | Modular full-automatic unattended pollution index determination system and method |
-
2008
- 2008-09-09 CN CN200810196509A patent/CN101672756A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213640A (en) * | 2011-04-11 | 2011-10-12 | 福州洁博利感应设备有限公司 | Automatic water-testing and pressure-testing control system of solenoid valve |
| CN102213640B (en) * | 2011-04-11 | 2012-10-03 | 福州洁博利感应设备有限公司 | Automatic water-testing and pressure-testing control system of solenoid valve |
| CN102519550A (en) * | 2011-12-12 | 2012-06-27 | 南京中电自动化有限公司 | Online silt density index (SDI) analyzing instrument level optical detection method and device |
| CN106124368A (en) * | 2016-08-30 | 2016-11-16 | 合众高科（北京）环保技术股份有限公司 | A kind of pollution index test device and method of testing thereof |
| CN106124368B (en) * | 2016-08-30 | 2019-07-16 | 合众高科（北京）环保技术股份有限公司 | A kind of pollution index test device |
| CN106769763A (en) * | 2016-12-20 | 2017-05-31 | 辽宁科技大学 | A kind of covering layer infiltration automatic data acquisition device controlled by PLC |
| CN109682943A (en) * | 2019-01-31 | 2019-04-26 | 隆义轩 | A kind of water pollution index's detection device being able to achieve auto-manual measuring and calculating |
| CN109682943B (en) * | 2019-01-31 | 2024-03-26 | 隆义轩 | Water pollution index detection device capable of realizing manual-automatic measurement and calculation |
| CN111562351A (en) * | 2020-05-28 | 2020-08-21 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water |
| CN111562351B (en) * | 2020-05-28 | 2022-11-22 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water |
| CN114965926A (en) * | 2022-05-20 | 2022-08-30 | 德斯科技术(南京)有限公司 | Modular full-automatic unattended pollution index determination system and method |
| CN114965926B (en) * | 2022-05-20 | 2024-04-26 | 德斯科技术(南京)有限公司 | Modularized full-automatic unattended pollution index measurement system and method |
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Open date: 20100317 |