CN106517457A - Method and system for monitoring alum break failure of alum delivery pipeline of water plant - Google Patents

Method and system for monitoring alum break failure of alum delivery pipeline of water plant Download PDF

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Publication number
CN106517457A
CN106517457A CN201610801988.0A CN201610801988A CN106517457A CN 106517457 A CN106517457 A CN 106517457A CN 201610801988 A CN201610801988 A CN 201610801988A CN 106517457 A CN106517457 A CN 106517457A
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China
Prior art keywords
vitriol
pipeline
disconnected
pressure
monitoring
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CN201610801988.0A
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CN106517457B (en
Inventor
张慧
贾宝良
罗熠
鲁立
黄灿
杨晓林
金逸
张遥
魏成
代霄
梁垒
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WUHAN CHANGJIANG INSTRUMENT AUTOMATION RESEARCH INSTITUTE Co Ltd
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WUHAN CHANGJIANG INSTRUMENT AUTOMATION RESEARCH INSTITUTE Co Ltd
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Priority to CN201610801988.0A priority Critical patent/CN106517457B/en
Publication of CN106517457A publication Critical patent/CN106517457A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0092Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/03Pressure
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/40Liquid flow rate

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention provides a method for monitoring alum break failure of an alum delivery pipeline of a water plant. The method comprises the steps: arranging a flowmeter in the alum delivery pipeline so as to monitor the flow rate of the alum delivery pipeline; arranging a pressure sensor in the alum delivery pipeline so as to monitor the pressure of the alum delivery pipeline; and judging whether the alum delivery pipeline is subjected to the alum break failure or not based on monitored flow rate variation and pressure variation, wherein the flowmeter is a high-precision flowmeter and is mounted on the alum delivery pipeline between a metering pump or adjusting valve and a feeding point, and the pressure sensor is an anti-corrosion pressure sensor and is mounted on the alum delivery pipeline between the metering pump or adjusting valve and the feeding point. Advantageously, compared with the traditional methods which only depend on flowmeter monitoring, the method for monitoring the alum break failure of the alum delivery pipeline of the water plant, provided by the invention, is more complete, reasons for alum break can be directly judged, and a complete alum break judgment program is formed.

Description

A kind of method and its system that the disconnected vitriol failure in vitriol pipeline is thrown for monitoring water factory
Technical field
The present invention relates to field of fault detection, more particularly to a kind of to throw the disconnected vitriol failure in vitriol pipeline for monitoring water factory Method and its system, jointly judge short vitriol situation with vitriol flow with reference to the pressure for throwing vitriol pipeline.
Background technology
The core process that vitriol is water process is thrown in waterworks, and disconnected vitriol can cause muddy water accident, to producing safety hazard greatly, The disconnected vitriol accident of more comprehensively perfect monitoring, processes in time, production accident can be strangled in cradle.
General water factory's throwing vitriol pipeline only installs electromagnetic flowmeter carries out the monitoring of medical abortion amount, when medical abortion amount occurs ANOMALOUS VARIATIONS When process, it is to avoid the generation of disconnected vitriol accident.But electromagnetic flowmeter monitoring has blind area, the mould that particularly mixing pit face adds Formula, such as resolute vitriol point occur after effusion meter, and effusion meter will not detect any changes in flow rate, and only lean on changes in flow rate Disconnected vitriol reason cannot be judged.
As the change of effusion meter detection flows cannot judge disconnected vitriol reason, after finding disconnected vitriol accident, due to throw vitriol pipeline compared with Long, investigation reason is also cumbersome, wastes time and energy.
Accordingly, it would be desirable to a kind of improved method and system carrys out the disconnected vitriol failure of more convenient reliably monitoring.
The content of the invention
The present invention is intended to provide a kind of monitored jointly the method that the disconnected vitriol of vitriol pipeline is thrown by water factory by pressure transducer and effusion meter, The more disconnected vitriol failure of comprehensive monitoring, and when there is disconnected vitriol failure, there is provided cause the judgement of failure to instruct.
To realize the purpose, the present invention provides a kind of for monitoring the method that the disconnected vitriol failure in vitriol pipeline is thrown by water factory, bag Include:Effusion meter is arranged in throwing vitriol pipeline, for monitoring the flow thrown in vitriol pipeline;Pressure transducer is arranged on into throwing vitriol pipe In road, for monitoring the pressure thrown in vitriol pipeline;Based on the flow and the pressure monitored, judge in the throwing Whether the disconnected vitriol failure there is in vitriol pipeline, wherein the effusion meter is high precision flow, installed in dosing pump or regulation Valve is on the throwing vitriol pipeline between toss area;And wherein described pressure transducer is anticorrosion pressure transducer, is installed In the dosing pump or regulating valve on the throwing vitriol pipeline between the toss area.
Further, the pressure transducer is two-wire system pressure transducer, and signal output is 4-20mA, range is 0~ 0.4MPa, material meet ceramic pressure drag chip.
Further, the flow is calculated as electromagnetic flowmeter, and range monitoring range is 20L/h~1000L/h, signal output For 4~20mA.
Further, judge that the step that whether the disconnected vitriol failure occurs in the throwing vitriol pipeline includes:Work as institute State pressure sensor monitoring to the pressure change when, further combined with the flow change accordingly judging institute The reason for stating disconnected vitriol failure.
Further, when the pressure sensor monitoring reduces to the pressure, effusion meter described further monitors institute When stating constant flow or increase, so as to judge to cause to leak vitriol due to throwing vitriol pipeline breaking, and accordingly report to the police.
Further, when the pressure sensor monitoring increases to the pressure, effusion meter described further monitors institute When stating flow reduction or being zero, so as to judge to cause disconnected vitriol due to throwing vitriol pipeline obstruction, and accordingly report to the police.
Further, when the pressure sensor monitoring to the pressure is zero, effusion meter described further monitors institute When to state flow be zero, so as to judge to cause no vitriol to be got due to dosing pump or failsafe valve, and accordingly report to the police.
The present invention also provides a kind of for monitoring the system that the disconnected vitriol failure in vitriol pipeline is thrown by water factory, including:Detector unit, Including effusion meter and pressure transducer, wherein the effusion meter is arranged in throwing vitriol pipeline, for monitoring the stream thrown in vitriol pipeline Amount, wherein the pressure transducer is arranged in throwing vitriol pipeline, for monitoring the pressure thrown in vitriol pipeline;Conditional judgment list Unit, is coupled in the detector unit, is configured to the flow monitored and the pressure, judges in the throwing vitriol pipeline In whether there is the disconnected vitriol failure;Alarm unit, is coupled in the condition judgment unit, is configured in response to the disconnected vitriol event Hinder and report to the police;Wherein described effusion meter is high precision flow, installed in dosing pump or regulating valve to described between toss area Throw on vitriol pipeline;And wherein described pressure transducer is anticorrosion pressure transducer, installed in the dosing pump or regulating valve To on the throwing vitriol pipeline between the toss area.
Further, the pressure transducer is two-wire system pressure transducer, and signal output is 4-20mA, range is 0~ 0.4MPa, material meet ceramic pressure drag chip.
Further, the flow is calculated as electromagnetic flowmeter, and range monitoring range is 20L/h~1000L/h, signal output For 4~20mA.
Further, the condition judgment unit is configured to:When the pressure sensor monitoring reduces to the pressure, enter When effusion meter described in one step monitors the constant flow or increase, so as to judge to cause leakage due to throwing vitriol pipeline breaking Vitriol, and accordingly reported to the police by the alarm unit.
Further, the condition judgment unit is configured to:When the pressure sensor monitoring increases to the pressure, enter When effusion meter described in one step monitors that the flow reduces or is zero, so as to judge to cause to break due to throwing vitriol pipeline obstruction Vitriol, and accordingly reported to the police by the alarm unit.
Further, the condition judgment unit is configured to:When the pressure sensor monitoring to the pressure is zero, enter Effusion meter described in one step monitors the flow when being zero, so as to judge to cause no vitriol to be beaten due to dosing pump or failsafe valve Go out, and accordingly reported to the police by the alarm unit.
Advantageously, it is provided by the present invention for monitor water factory throw vitriol pipeline in disconnected vitriol failure method and its system by Pressure transducer and effusion meter monitor disconnected vitriol jointly, compared to the old-fashioned method only by effusion meter monitoring, more perfect, and can be directly Connect and judge disconnected vitriol reason, and form the disconnected vitriol program of a set of judgement for completing..
Description of the drawings
Fig. 1 is one embodiment of the present of invention offer for monitoring the method that the disconnected vitriol failure in vitriol pipeline is thrown by water factory Schematic flow sheet;
Fig. 2 is an alternative embodiment of the invention offer for monitoring the method that the disconnected vitriol failure in vitriol pipeline is thrown by water factory Schematic flow sheet;
Fig. 3 is one embodiment of the present of invention offer for monitoring the system that the disconnected vitriol failure in vitriol pipeline is thrown by water factory Block diagram.
Specific embodiment
In order that the technical problem to be solved, technical scheme and beneficial effect become more apparent, below tie Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only To explain the present invention, it is not intended to limit the present invention.
The present invention need to be used in the waterworks of complete set and throw in vitriol pipeline, and complete tap water is thrown vitriol pipeline and should be wrapped Include:If dosing pump is added, dosing pump need to be included, counterbalance valve, damping buffering tank wait dosing pump auxiliary facility, add with being set to The throwing vitriol pipeline of point;If centrifugal pump and regulating valve are added, centrifugal pump, regulating valve, with the throwing vitriol pipe for being set to toss area need to be included Road.
The present invention needs to do a small amount of change to throwing vitriol pipeline, need to increase pressure transducer mount point and effusion meter on pipeline Mount point, in order to cable lays conveniently, reduces construction volume, and generally effusion meter and pressure transducer are arranged in dosing.Will Pressure transducer and flow meter signal are uploaded and access water factory PLC substations or signal gathering unit nearby, and water will be delivered on signal Factory's Intranet.
Fig. 1 is one embodiment of the present of invention offer for monitoring the method that the disconnected vitriol failure in vitriol pipeline is thrown by water factory 100 schematic flow sheet.As shown in figure 1, the method 100 that the disconnected vitriol failure in vitriol pipeline is thrown for monitoring water factory includes following step Suddenly:
Step 102:Effusion meter is arranged in throwing vitriol pipeline, for monitoring the flow thrown in vitriol pipeline.Implement at one In example, the flow is calculated as high precision flow, installed in dosing pump or regulating valve to the throwing vitriol pipeline between toss area On.In one embodiment, the flow is calculated as electromagnetic flowmeter, and range monitoring range is 20L/h~1000L/h, and signal is defeated Go out for 4~20mA analog signalses, and the lining material of electrode and effusion meter meets the corrosion resistant material of acid-fast alkali-proof.
Step 104:Pressure transducer is arranged in throwing vitriol pipeline, for monitoring the pressure thrown in vitriol pipeline. In one embodiment, the pressure transducer is anticorrosion pressure transducer, installed in the dosing pump or regulating valve to described On the throwing vitriol pipeline between toss area.In one embodiment, the pressure transducer is two-wire system pressure transducer, is pressed Force transducer interface for control test threaded connection pattern, signal output be 4-20mA analog signalses, range be 0~ 0.4MPa, material meet ceramic pressure drag chip.
Step 106:Based on the flow and the pressure monitored, judge whether institute occurs in the throwing vitriol pipeline State disconnected vitriol failure.
The method 100 that the disconnected vitriol failure in vitriol pipeline is thrown for monitoring water factory specify that pressure change how many whens, and triggering is disconnected Vitriol condition detects, with reference to changes in flow rate it is how many when the disconnected vitriol of triggering report to the police, need to increase pressure change filtering, changes in flow rate filtering. In one embodiment, judge that the step that whether the disconnected vitriol failure occurs in the throwing vitriol pipeline includes:When described Pressure sensor monitoring to the pressure change when, the change further combined with the flow is described accordingly to judge The reason for disconnected vitriol failure (as shown in table 1).
Judgement list of the table 1 with regard to vitriol failure cause of breaking
As shown in table 1, in one embodiment, when the pressure sensor monitoring to the pressure reduces (condition 1), enter Effusion meter described in one step monitor the flow it is constant or increase when (condition 2), so as to judge due to throw vitriol pipeline breaking and Cause to leak vitriol, and accordingly report to the police.
In another embodiment, it is when the pressure sensor monitoring to the pressure increases (condition 1), described further When effusion meter monitors that the flow reduces or is zero (condition 2), so as to judge to cause disconnected vitriol due to throwing vitriol pipeline obstruction, And accordingly report to the police.
In yet another embodiment, it is when the pressure sensor monitoring to the pressure is zero (condition 1), described further When effusion meter monitors that the flow is zero (condition 2), so as to judge to cause no vitriol to be beaten due to dosing pump or failsafe valve Go out, and accordingly report to the police.
Fig. 2 is an alternative embodiment of the invention offer for monitoring the method that the disconnected vitriol failure in vitriol pipeline is thrown by water factory 200 schematic flow sheet.Fig. 2 can be understood with reference to Fig. 1, the method 200 of the disconnected vitriol failure in vitriol pipeline is thrown for monitoring water factory Comprise the following steps:
Step 202:Collection pressure signal is simultaneously filtered to pressure signal, detects the change of pressure signal.
Step 204:Based on the change of pressure signal, selectivity triggering first condition.
In one embodiment, the pressure change filtering mode for being adopted for:Due to pressure general value it is more stable, per 1 Second sampling pressure signal, and take nearest 5 seconds sample mean P (t)=[P (t-1)+P (t-2)+P (t-3)+P (t-4)+ P(t-5)]/5.Pressure variety triggers the condition of disconnected vitriol judgement:The variable quantity of continuous 10 force samples meansigma methodss just deviates During constant value 20%, the condition 1 that the disconnected vitriol of triggering judges;The variable quantity of continuous 10 force samples meansigma methodss deviates normal value and is less than When 20%, cancel the condition 1 that the disconnected vitriol of triggering judges.Specifically, by the filtered pressure value in step 202 and the standard for setting Pressure value P (t0) is compared, Δ P (t)=P (t)-P (t0), | Δ P (t)/P (t0) | >=0.2, continuous ten times | Δ P (t)/P (t0) | >=0.2, then disconnected vitriol Rule of judgment 1 is triggered, disconnected vitriol is carried out according to flow value practical situation and is judged.Additionally, in disconnected vitriol condition After 1 triggering, if ten Δ P (t)/P (t0)≤0.2 of continuous detecting, cancel disconnected vitriol Rule of judgment 1 (step 206) of triggering.
Step 208:Collection flow signal is simultaneously filtered to flow signal, carrys out the change of detection flows signal.
Step 210:Based on the change of flow signal, selectivity triggering second condition.
In one embodiment, the changes in flow rate filtering mode for adopting for:Due to flowed fluctuation it is more frequent, using karr The algorithm of graceful filtering, adopted a sample per 1 second, and discrete data on flows is restrained.The condition that the disconnected vitriol of changes in flow rate amount triggering judges For:When flow value variable quantity after continuous 10 Kalman Filterings calculating deviates normal value 20%, the condition 2 that the disconnected vitriol of triggering judges; When flow value variable quantity after continuous 10 Kalman Filterings calculating deviates normal value less than 20%, cancel the bar for triggering that the vitriol that breaks judges Part 2.Specifically, the proving flowmeter F (t0) by the filtered flow value in step 206 with setting is compared, Δ F (t) =F (t)-F (t0), | Δ F (t)/F (t0) | >=0.2, continuous ten | Δs F (t)/F (t0) | >=0.2 then trigger disconnected vitriol and judge bar Part 2, carries out disconnected vitriol with reference to above-mentioned pressure value practical situation and judges.Additionally, after the triggering of disconnected vitriol condition 2, if continuous detecting ten times Δ F (t)/F (t0)≤0.2, cancels disconnected vitriol Rule of judgment 2 (step 212) of triggering.
Step 214:Based on the triggering of first condition and second condition, disconnected vitriol failure cause (example of reporting to the police accordingly are judged Such as, send corresponding captions to report to the police and audio alert).Step 212 refers to the description above with respect to step 106 and table 1, is letter For the sake of about, separately do not repeat herein.
Note that in one embodiment, the detection of step 202-212 is can proceed with while step 214 and is sentenced Disconnected step, when there is the situation of step 206 and 212, that is, cancels the disconnected vitriol Rule of judgment 1 and 2 of triggering, then cancels current alerts, And step 202 is come back to until the new disconnected vitriol of triggering is reported to the police.In another embodiment, when artificial needs are closed and are reported to the police, May be selected to choose " cancellation current alerts " option, cancel current alerts, and step 202 is come back to until the new disconnected vitriol of triggering Report to the police.
Fig. 3 is one embodiment of the present of invention offer for monitoring the system that the disconnected vitriol failure in vitriol pipeline is thrown by water factory 300 block diagram.Fig. 3 can be understood with reference to Fig. 1 and Fig. 2, for monitor the disconnected vitriol failure in water factory's throwing vitriol pipeline be System 300 includes:
Detector unit 302, including effusion meter and pressure transducer, wherein the effusion meter is arranged in throwing vitriol pipeline, uses The flow in vitriol pipeline is thrown in monitoring, wherein the pressure transducer is arranged in throwing vitriol pipeline, for monitoring the throwing vitriol pipe Pressure in road.
Condition judgment unit 304, is coupled in the detector unit 302, is configured to the changes in flow rate monitored With the pressure change, judge whether the disconnected vitriol failure occurs in the throwing vitriol pipeline;
Alarm unit 306, is coupled in the condition judgment unit 304, is configured to report to the police in response to the disconnected vitriol failure.
Further, the pressure transducer is two-wire system pressure transducer, and signal output is 4-20mA, range is 0~ 0.4MPa, material meet ceramic pressure drag chip.
Further, the flow is calculated as electromagnetic flowmeter, and range monitoring range is 20L/h~1000L/h, signal output For 4~20mA.
Further, the condition judgment unit 304 can be configured to:When the pressure sensor monitoring subtracts to the pressure It is little, when effusion meter described further monitors the constant flow or increase, so as to judge to lead due to throwing vitriol pipeline breaking Leakage vitriol is caused, and is reported to the police by the alarm unit 306 is corresponding.
Further, the condition judgment unit 304 can be configured to:When the pressure sensor monitoring increases to the pressure Greatly, when effusion meter described further monitors that the flow reduces or is zero, so as to judge to lead due to throwing vitriol pipeline obstruction Disconnected vitriol is caused, and is reported to the police by the alarm unit 306 is corresponding.
Further, the condition judgment unit 304 can be configured to:When the pressure sensor monitoring to the pressure is Zero, effusion meter described further monitors the flow when being zero, so as to judge as dosing pump or failsafe valve cause not have There is vitriol to get, and reported to the police by the alarm unit 306 is corresponding.
Therefore, the present invention have important theoretical and practical significance the foregoing is only presently preferred embodiments of the present invention and , not to limit the present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention Deng should be included within the scope of the present invention.

Claims (13)

1. a kind of for monitoring the method that the disconnected vitriol failure in vitriol pipeline is thrown by water factory, including:
Effusion meter is arranged in throwing vitriol pipeline, for monitoring the flow thrown in vitriol pipeline;
Pressure transducer is arranged in throwing vitriol pipeline, for monitoring the pressure thrown in vitriol pipeline;
Based on the changes in flow rate and the pressure change monitored, judge whether described breaking occurs in the throwing vitriol pipeline Vitriol failure,
Wherein described effusion meter is high precision flow, installed in dosing pump or regulating valve to the throwing vitriol pipe between toss area Lu Shang;And
Wherein described pressure transducer is anticorrosion pressure transducer, installed in the dosing pump or regulating valve to the toss area Between the throwing vitriol pipeline on.
2. disconnected vitriol fault monitoring method according to claim 1, it is characterised in that the pressure transducer is two-wire system pressure Force transducer, signal output is 4-20mA, and range is 0~0.4MPa, and material meets ceramic pressure drag chip.
3. disconnected vitriol fault monitoring method according to claim 1, it is characterised in that the flow is calculated as electromagnetic flowmeter, Range monitoring range is 20L/h~1000L/h, and signal output is 4~20mA.
4. disconnected vitriol fault monitoring method according to claim 1, it is characterised in that whether judge in the throwing vitriol pipeline The step that the disconnected vitriol failure occurs includes:
When the pressure sensor monitoring to the pressure change when, the change further combined with the flow comes corresponding The reason for judging the disconnected vitriol failure.
5. disconnected vitriol fault monitoring method according to claim 4, it is characterised in that when the pressure sensor monitoring is to institute Pressure reduction is stated, when effusion meter described further monitors the constant flow or increase, so as to judge due to throwing vitriol pipeline Rupture and cause to leak vitriol, and accordingly report to the police.
6. disconnected vitriol fault monitoring method according to claim 4, it is characterised in that when the pressure sensor monitoring is to institute Pressure increase is stated, when effusion meter described further monitors that the flow reduces or is zero, so as to judge due to throwing vitriol pipeline Block and cause disconnected vitriol, and accordingly report to the police.
7. disconnected vitriol fault monitoring method according to claim 4, it is characterised in that when the pressure sensor monitoring is to institute It is zero to state pressure, and effusion meter described further monitors the flow when being zero, so as to judging due to dosing pump or valve therefore Barrier causes no vitriol to be got, and accordingly reports to the police.
8. a kind of for monitoring the system that the disconnected vitriol failure in vitriol pipeline is thrown by water factory, including:
Detector unit, including effusion meter and pressure transducer, wherein the effusion meter is arranged in throwing vitriol pipeline, throw for monitoring Flow in vitriol pipeline, wherein the pressure transducer is arranged in throwing vitriol pipeline, for monitoring the pressure thrown in vitriol pipeline Power;
Condition judgment unit, is coupled in the detector unit, is configured to the changes in flow rate monitored and the pressure Change, judges whether the disconnected vitriol failure occurs in the throwing vitriol pipeline;
Alarm unit, is coupled in the condition judgment unit, is configured to report to the police in response to the disconnected vitriol failure;
Wherein described effusion meter is high precision flow, installed in dosing pump or regulating valve to the throwing vitriol pipe between toss area Lu Shang;And
Wherein described pressure transducer is anticorrosion pressure transducer, installed in the dosing pump or regulating valve to the toss area Between the throwing vitriol pipeline on.
9. disconnected vitriol fault monitoring system according to claim 8, it is characterised in that the pressure transducer is two-wire system pressure Force transducer, signal output is 4-20mA, and range is 0~0.4MPa, and material meets ceramic pressure drag chip.
10. disconnected vitriol fault monitoring system according to claim 8, it is characterised in that the flow is calculated as electromagnetic flowmeter, Range monitoring range is 20L/h~1000L/h, and signal output is 4~20mA.
11. disconnected vitriol fault monitoring systems according to claim 8, it is characterised in that the condition judgment unit is configured to: When the pressure sensor monitoring reduces to the pressure, effusion meter described further monitors that the flow is constant or increases When, so as to judge to cause to leak vitriol due to throwing vitriol pipeline breaking, and accordingly reported to the police by the alarm unit.
12. disconnected vitriol fault monitoring systems according to claim 8, it is characterised in that the condition judgment unit is configured to: When the pressure sensor monitoring increases to the pressure, effusion meter described further monitors the flow reduction or is zero When, so as to judge to cause disconnected vitriol due to throwing vitriol pipeline obstruction, and accordingly reported to the police by the alarm unit.
13. disconnected vitriol fault monitoring systems according to claim 8, it is characterised in that the condition judgment unit is configured to: When the pressure sensor monitoring to the pressure is zero, effusion meter described further monitors the flow when being zero, so as to Judge to cause no vitriol to be got due to dosing pump or failsafe valve, and accordingly reported to the police by the alarm unit.
CN201610801988.0A 2016-09-05 2016-09-05 Method and system for monitoring alum breaking fault in alum feeding pipeline of water plant Active CN106517457B (en)

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CN201610801988.0A CN106517457B (en) 2016-09-05 2016-09-05 Method and system for monitoring alum breaking fault in alum feeding pipeline of water plant

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Application Number Priority Date Filing Date Title
CN201610801988.0A CN106517457B (en) 2016-09-05 2016-09-05 Method and system for monitoring alum breaking fault in alum feeding pipeline of water plant

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02157089A (en) * 1988-12-09 1990-06-15 Kawasaki Steel Corp Treatment of oil-containing waste water
CN2551637Y (en) * 2002-06-17 2003-05-21 向辉 Automatic pulsating vitriol adding device
CN201942549U (en) * 2011-03-31 2011-08-24 江汉大学 Actuating mechanism for casting vitriol into tap water for coagulation
CN203845850U (en) * 2014-04-09 2014-09-24 株洲市自来水有限责任公司 Alum dispensing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02157089A (en) * 1988-12-09 1990-06-15 Kawasaki Steel Corp Treatment of oil-containing waste water
CN2551637Y (en) * 2002-06-17 2003-05-21 向辉 Automatic pulsating vitriol adding device
CN201942549U (en) * 2011-03-31 2011-08-24 江汉大学 Actuating mechanism for casting vitriol into tap water for coagulation
CN203845850U (en) * 2014-04-09 2014-09-24 株洲市自来水有限责任公司 Alum dispensing system

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