CN109633117B - A kind of dynamic quality control system of monitoring water quality on line equipment - Google Patents
A kind of dynamic quality control system of monitoring water quality on line equipment Download PDFInfo
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- CN109633117B CN109633117B CN201910023051.9A CN201910023051A CN109633117B CN 109633117 B CN109633117 B CN 109633117B CN 201910023051 A CN201910023051 A CN 201910023051A CN 109633117 B CN109633117 B CN 109633117B
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Abstract
The invention discloses a kind of dynamic quality control systems of monitoring water quality on line equipment, comprising: for providing the sample unit of mark-on sample and quality-control sample, the control device connecting with sample unit for monitoring water quality on line equipment；Sample unit includes the first peristaltic pump for quantitatively extracting pure water and mother liquor and carries out quantitative optocoupler to the pure water and mother liquor of the first peristaltic pump pumps, first peristaltic pump and optocoupler are connect with control device, control device is used to receive the first peristaltic pump and the optocoupler quantitative volume information of pure water and mother liquor and the testing result of monitoring water quality on line equipment judge whether the monitoring data of monitoring water quality on line equipment are accurate, and configures quality-control sample or progress water sample mark-on operation for controlling sample unit；Quantitative manner that first peristaltic pump is combined with optocoupler can effectively improve the precision of monitoring water quality on line device data it is possible to prevente effectively from keep monitoring result inaccurate because temperature is too low or the reasons such as self-corrosion.
Description
Technical field
The present invention relates to environmentally friendly water quality detection quality control technology, supervise online more specifically to a kind of water quality
The dynamic quality control system of measurement equipment.
Background technique
Industry is monitored in aquatic environment, prevention data fabrication ensures that the quality of data is an important problem, so all kinds of water
Matter Online QC instrument comes into being.The Quality Control means of monitoring water quality on line equipment more have timeliness compared to for Manual analysis
Property and high efficiency.
In order to which the quality management and control for carrying out water quality monitoring reaches the public trust of water quality monitoring, generally pass through Quality Control
Whether accurate judgement is normally made to the work of original water quality monitor with the method for mark-on reclaims.In the prior art, water quality is online
The control system of monitoring device generally passes through syringe pump and reagent is extracted in the combination of multiple-way valve, with complete dynamic Quality Control and
It is big to integrate volume for mark-on reclaims, but syringe pump is at high cost, and can have using the later period that ontology is corroded, liquid line seeps
Whether the problems such as there are bubbles in leakage, inner cavity, influencing to work to monitoring water quality on line equipment normally judges；In addition, syringe pump
In the case where temperature environment is low in use, the Rubber end in inner injectors can be shunk, it may cause the phenomenon of leakage, cause to take out
It takes liquid not accurate, and then influences monitoring result.
In conclusion how to provide a kind of dynamic mass of the monitoring water quality on line equipment of certifiable monitoring data accuracy
Control system is a problem to be solved by those skilled in the art.
Summary of the invention
In view of this, making the object of the present invention is to provide a kind of dynamic quality control system of monitoring water quality on line equipment
The monitoring data of monitoring water quality on line equipment are more accurate.
To achieve the goals above, the invention provides the following technical scheme:
A kind of dynamic quality control system of monitoring water quality on line equipment, comprising: for being mentioned for monitoring water quality on line equipment
For the sample unit of mark-on sample and quality-control sample, the control device being connect with the sample unit；The sample unit includes
The pure water and the mother for quantitatively extracting the first peristaltic pump of pure water and mother liquor and to first peristaltic pump pumps
Liquid carries out quantitative optocoupler, and first peristaltic pump and the optocoupler are connect with the control device, and the control device is used
Volume information and the water quality in reception first peristaltic pump and the optocoupler quantitative pure water and the mother liquor
The testing result of on-line monitoring equipment judges whether the monitoring data of the monitoring water quality on line equipment are accurate, and described in control
Sample unit configures the quality-control sample or carries out the operation of water sample mark-on.
Preferably, the optocoupler includes the first optocoupler and the second optocoupler, and between first optocoupler and second optocoupler
First peristaltic pump and the extraction tube of the pure water and mother liquor road are connected every being set to.
Preferably, the sample unit is provided with the sample cup for configuring mark-on sample or quality-control sample, the sample
Cup is connect with first peristaltic pump and water sample apparatus for placing, and the sample cup is provided with first for quantitative first volume
Overflow port and leakage fluid dram for quantitative second volume, and the first volume is greater than the second volume.
Preferably, the sample cup is connected by mixing pipeline with the air pump for blasting bubble into the sample cup
Logical, the pipeline that mixes is provided with check valve for avoiding liquid in the sample cup from flowing into the air pump, described unidirectional
Valve and the air pump are connect with the control device.
Preferably, the sample unit further includes fixed for carrying out quantitative pure water to the pure water flowed into the sample cup
Measure flow path, the pure water quantify flow path include the second triple valve, the pure water being connect with the sample cup quantify module and with it is described
Pure water quantifies the reversible peristaltic pump of module connection；
Normally open end, normal-closed end and the common end of second triple valve are sequentially connected to the sample cup, for holding
The device and the reversible peristaltic pump of pure water are stated, second triple valve and the reversible peristaltic pump are filled with the control
Set connection.
Preferably, the sample unit is provided with the drain flow path for the mark-on sample or the quality-control sample to be discharged
And the drainage flow path for the pure water to be discharged.
Preferably, the sample unit is provided with scarce liquid warning device and for receiving the sending of optocoupler described in reflection liquid
The optical detector of reflected light caused by optical signal, the scarce liquid warning device and the optical detector with the control device
Connection, the control device obtains the pure water according to the variation that the optical detector receives optical signal or the mother liquor flows through light
The time of coupling, judge whether the pure water extracted or the mother liquor are in scarce liquid status, to control when lacking liquid status
The scarce liquid warning device alarm.
It preferably, further include reagent storage element for placing the pure water and the mother liquor, the reagent storage is single
Member includes the pure water reagent bottle and several mother liquor reagent bottles for being used to hold the mother liquor for holding the pure water, the pure water
Reagent bottle and the mother liquor reagent bottle pass through BULKHEAD UNION and extraneous piping connection.
Preferably, the reagent storage element is provided with temperature sensor and refrigeration warning device, the temperature sensor
The control device, the temperature that the control device is tested according to the temperature sensor are all connected to the refrigeration warning device
Degree value judges whether cryogenic temperature is suitable, not conform to refrigeration warning device report described in reed time controll in the cryogenic temperature
It is alert.
Preferably, the control device be provided with for detect the first peristaltic pump precision whether He Ge controller,
The sample unit is provided with the first peristaltic pump precision warning device connecting with the controller, and the controller is according to
Time used in the pure water or the mother liquor of first peristaltic pump pumps determined volume judges the precision of first peristaltic pump
It is whether qualified, to control the first peristaltic pump precision warning device report when the first peristaltic pump precision is unqualified
It is alert.
The dynamic quality control system of monitoring water quality on line equipment provided by the invention, comprising: for being supervised online for water quality
Measurement equipment provides the sample unit of mark-on sample and quality-control sample, the control device connecting with sample unit；Sample unit includes
For quantitatively extracting the first peristaltic pump of pure water and mother liquor and being carried out to the pure water and mother liquor of the first peristaltic pump pumps quantitative
Optocoupler, the first peristaltic pump and optocoupler are connect with control device, and control device is quantitative for receiving the first peristaltic pump and optocoupler
The testing result of the volume information and monitoring water quality on line equipment of pure water and mother liquor, judges the monitoring of monitoring water quality on line equipment
Whether data are accurate, control sample unit configuration quality-control sample or progress water sample mark-on operation.
During use, quantitative pumping can be carried out to the biggish pure water of required volume and mother liquor by the first peristaltic pump
Take, the pure water and mother liquor to required small volume are quantified by optocoupler, then in sample unit formed mark-on sample or
The quality-control sample of various concentration is detected using quality-control sample of the monitoring water quality on line equipment to various concentration, molten with standard
The testing result of liquid compares；Or control dress can be passed to by detecting to mark-on sample, and testing result
It sets, control device judges whether the detection data of monitoring water quality on line equipment is accurate by testing result.Compared with the prior art,
Quantitative manner that first peristaltic pump is combined with optocoupler due to temperature is too low or the reasons such as self-corrosion it is possible to prevente effectively from make to monitor
As a result inaccurate, it can effectively improve the precision of monitoring water quality on line device data.
In addition, compared to syringe pump, the first peristaltic pump it is small in size, at low cost, production cost can be effectively reduced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the knot of the specific embodiment of the dynamic quality control system of monitoring water quality on line equipment provided by the present invention
Structure schematic diagram.
In Fig. 1:
1 it is monitoring water quality on line equipment, 2 be the first triple valve, 3 be the second peristaltic pump, 4 be water sample cup, 5 is the first overflow
Mouthful, 6 be leakage fluid dram, 7 be third peristaltic pump, 8 be waste liquid port, 9 be waste water mouth, 10 be tapping valve, 11 be drain valve, 12 be sample
Cup, 13 be check valve, 14 be air pump, 15 be the first peristaltic pump, 16 be the second overflow port, 17 be that pure water quantifies module, 18 is
Reversible peristaltic pump, 19 be the second triple valve, 20 be the first optocoupler, 21 be the second optocoupler, 22 be multi-pass valve module, 23 be first
Mother liquor channel, 24 for the second mother liquor channel, 25 be air duct, 26 be pure water channel, 27 be pure water reagent bottle, 28 be first mother
Liquid reagent bottle, 29 be digital display refrigeration equipment, 30 be the second mother liquor reagent bottle, 31 be the 4th peristaltic pump.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of dynamic quality control system of monitoring water quality on line equipment, can exist for water quality
Line monitoring device provides the quality inspection sample of volume accurately mark-on sample and various concentration.
Referring to FIG. 1, Fig. 1 is the specific of the dynamic quality control system of monitoring water quality on line equipment provided by the present invention
The structural schematic diagram of embodiment.
The dynamic quality control system of monitoring water quality on line equipment provided in this embodiment, including for being supervised online for water quality
Measurement equipment 1 provides the sample unit of mark-on sample and various concentration quality-control sample, the control device connecting with sample unit；Sample
Unit includes the first peristaltic pump 15 for quantitatively extracting pure water and mother liquor and pure water and mother to the extraction of the first peristaltic pump 15
Liquid carries out quantitative optocoupler；First peristaltic pump 15 and optocoupler are connect with control device, and control device is wriggled for receiving first
The testing result of the volume information and monitoring water quality on line equipment 1 of pure water and mother liquor quantitative by pump 15 and optocoupler, judges water
Whether the monitoring data of matter on-line monitoring equipment 1 are accurate, control sample unit configuration quality-control sample or progress water sample mark-on operation.
It needs to be illustrated, the first peristaltic pump 15 in the present embodiment is mainly used for the biggish pure water of volume or mother
Liquid is quantified, and optocoupler is mainly used for quantifying the pure water and mother liquor of small volume, may be implemented to the molten of small volume
The quantitative flexibility of liquid, to save the sample time；Volume described herein is larger and small volume has relativity, and meeting basis makes
The difference of user and the specific judgment basis of changing needs determines according to actual conditions.
When using sample cup 12 to configure quality-control sample in sample unit or carrying out the operation of water sample mark-on, it is less than sample cup 12
In 1% volume of volume that defines of 6 position of leakage fluid dram for being discharged liquid, then be small volume；For example, working as drain
When the volume that 6 positions of mouth define is 300ml, the following are small volumes by 3ml.
In addition, the quantity of optocoupler can be 1,2 or 3, it is also possible to multiple, is determined with specific reference to actual conditions,
This will not be repeated here.
It is to be detected to obtain to standard solution by monitoring water quality on line equipment 1 that water quality monitoring quality, which controls common method,
One data is as a result, again compare the standard value of this data result and standard solution.If the mark of monitoring water quality on line equipment 1
The data result that quasi- solution detection obtains then illustrates that monitoring water quality on line equipment 1 is working properly in the error range of standard value,
The monitoring data that its daily monitoring obtains are effective, can be used as the foundation of environmental protection administration's management；If the mark of monitoring water quality on line equipment 1
It is different then to illustrate that monitoring water quality on line equipment 1 works not in the error range of standard value for the data result that quasi- solution detection obtains
Often, the monitoring data that daily monitoring obtains are invalid, it is not possible to the foundation as environmental protection administration's management.
Mark-on reclaims are exactly to add mother liquor in raw water sample on the basis of original water quality monitoring to be detected.Mark-on mistake
Cheng Zhongying meets claimed below: firstly, spiked levels are generally 0.1~2 times of raw water sample concentration；Secondly, instrument after mark-on
Measured value cannot outrange；Mark-on volume can be ignored compared to total volume of water sample, and general volume is no more than raw water sample body
Long-pending 1%.Then recovery of standard addition is obtained according to the definition of recovery of standard addition；Recovery of standard addition is defined as: p=(c1-c2)
v1/(c0*v0), wherein p is recovery of standard addition, c2For the measured value of water quality monitoring equipment after mark-on, c1For the survey of equipment before mark-on
Magnitude, v1For the volume of raw water sample, c0For the concentration of mother liquor, v0For mark-on volume.
During use, firstly, under control of the control means, the first peristaltic pump 15 takes out pure water and mother liquor
It takes, the first peristaltic pump 15 or optocoupler quantify the pure water and mother liquor of extraction, and sample unit is that monitoring water quality on line equipment 1 mentions
For mark-on sample or the quality-control sample of various concentration, Quality Control sample of the monitoring water quality on line equipment 1 to mark-on sample or various concentration
Product are detected, and testing result is passed to control device, control device receive the pure water that the first peristaltic pump 15 is extracted or
Whether the volume information of mother liquor and the testing result of monitoring water quality on line equipment 1 judge monitoring water quality on line equipment 1 in just
Normal working condition.If monitoring water quality on line equipment 1 is in normal operating conditions, monitoring data can be used as environmental protection administration's pipe
The foundation of reason, if monitoring water quality on line equipment 1 is in abnormal operating state, monitoring data cannot be used as environmental protection administration
The foundation of management.
It needs to be illustrated, control device may include industrial personal computer and controller, and controller is for controlling sample list
Member configuration quality-control sample and the operation for carrying out water sample mark-on, industrial personal computer are all connected with monitoring water quality on line equipment and controller, water
Matter on-line monitoring equipment will test result and be transferred to industrial personal computer, and controller is by water sample value, quality-control sample concentration, mark-on water sample concentration
Etc. information pass to industrial personal computer, industry control shows the information of acquisition.Controller may include several man machine operation interfaces,
For application valve body or the switch of the pump housing etc.；Certainly, control device is also possible to other structures form, with specific reference to actual conditions
It determines.
It, can be taking human as passing through industry control in addition, relating to how to judge whether the monitoring data of monitoring water quality on line equipment are qualified
The data that machine is shown are judged, judging unit can also be arranged in control device, for judging monitoring water quality on line equipment
Testing result it is whether qualified, to judge whether monitoring water quality on line equipment goes wrong.
Therefore, the dynamic quality control system of the monitoring water quality on line equipment in the present embodiment can pass through control device control
It prepares sample unit and realizes and automatically configure the quality-control sample of mark-on sample or various concentration, and the first peristaltic pump 15 and optocoupler are determined
Amount combination because temperature is too low or the reasons such as self-corrosion it is possible to prevente effectively from keep monitoring result inaccurate, to improve water
The precision of 1 monitoring data of matter on-line monitoring equipment.
In addition, the syringe pump in compared with the prior art, the first peristaltic pump 15 it is small in size, at low cost, can effectively drop
Low production cost.
Preferably, the first peristaltic pump 15 is high precision peristaltic pump.
On the basis of the above embodiments, in order to enable optocoupler to carry out determining for different volumes to the pure water and mother liquor of extraction
Amount can make optocoupler include the first optocoupler 20 and the second optocoupler 21, and 21 company of being arranged at intervals at of the first optocoupler 20 and the second optocoupler
Connect the extraction tube road of the first peristaltic pump 15 and pure water and mother liquor.
It needs to be illustrated, extracts pipeline and refer to the first peristaltic pump of connection 15 and device and the connection for holding pure water
All pipelines of first peristaltic pump 15 and the device for holding mother liquor, quantity can be 1, be also possible to 2,3 or
It is a plurality of, it is determined with specific reference to actual conditions.
Preferably, extraction tube road is provided with the multi-pass valve module 22 for connecting pure water and different mother liquors, multi-pass valve group
Part 22 is connected by different reagent connecting lines from pure water and different mother liquors, and is provided with air duct in multi-pass valve module 22
25, air pipeline 25 can be used for will quantitatively after pure water and mother liquor discharge；Between multi-pass valve module 22 and the first peristaltic pump 15
It is provided with optocoupler pipeline, the first optocoupler 20 and the second optocoupler 21 are arranged at intervals on optocoupler pipeline.
In use, the second optocoupler 21 can be disposed in proximity to the side of multi-pass valve module 22, the first optocoupler 20
It is set to the side close to the first peristaltic pump 15 for being located at same optocoupler pipeline with the second optocoupler 21；If only extracting same examination
Agent, then there are two types of determined volumes, extract in pipeline when the first determined volume is reagent aspiration to the first 20 position of optocoupler
The volume of reagent, second of determined volume extract the body of pipeline pilot scale agent when being reagent aspiration to the second 21 position of optocoupler
Product；When extracting two different reagents, such as when one kind is pure water, one kind is mother liquor, pure water can be extracted to the second light
21 position of coupling then proceedes to extract mother liquor, until liquid level reaches 20 position of the first optocoupler, then can quantify mother liquor
Volume optocoupler pipeline between the first optocoupler 20 and the second optocoupler 21 can accommodate the volume of reagent.
Optocoupler dosing process is as follows: opening the channel of the related reagent in multi-pass valve module 22, the first peristaltic pump 15 starts
Starting, when the surface of test object, the light to one end sending of the second optocoupler 21 reflects, the light for receiving optical detector
Signal changes, i.e., when reagent liquid level reaches the second optocoupler 21, peristaltic pump stops, and completes primary quantitative；When the first peristaltic pump
15 continue to start, and when reagent liquid level passes through the first optocoupler 20, just complete the second metering to reagent.Determined volume and optocoupler pipe
The internal diameter on road and the first optocoupler 20 or the second optocoupler 21 arrive the optocoupler pipeline distance and the first light of multi-pass valve module 22
The optocoupler pipeline distance dependent of the 20 to the second optocoupler of coupling 21, minimum determined volume can be down to 0.1ml.After the completion of reagent quantitative,
Air duct 25 is opened, the first peristaltic pump 15 is started, the reagent in optocoupler pipeline is discharged all.
The quantitative mode of optocoupler realizes the flexibility quantitative to the solution of small volume, saves the sample time.
In order to make sample unit be capable of providing the quality-control sample of mark-on sample or various concentration, the sample unit can be made to include
For configuring the sample cup 12 of mark-on sample or quality-control sample, sample cup 12 and the first peristaltic pump 15, the dress for holding water sample
Connection is set, sample cup 12 is provided with the first overflow port 5 for quantitative first volume and the drain for quantitative second volume
Mouth 6, and the first volume is greater than the second volume.
During use, water sample or pure water are added first into sample cup 12, when water sample or pure water reach first and hold
When at product, extra water sample or pure water can be flowed out from the first overflow port 5, then opened third peristaltic pump 7, made the first overflow port 5
Water sample or pure water between leakage fluid dram 6 are flowed out by leakage fluid dram 6, until there is no water sample or pure water to flow out for leakage fluid dram 6, close the
Three peristaltic pumps 7, the mother liquor of certain volume is added by the first peristaltic pump 15 into sample cup 12, and is uniformly mixed, and forms mark-on
The quality-control sample of sample or various concentration.
This kind of constant volume mode can make water sample in addition to executing mark-on reclaims process, and other times section water sample does not pass through sample cup
12, can to avoid complicated component actual water sample for a long time be trapped in sample cup 12, and pollute prepared mark-on sample or
Quality-control sample.In addition, the constant volume mode can to avoid be bubbled the mixing stage prepare sample from overflow port bloat, caused by mark-on
The quality-control sample of sample and various concentration prepares the situation of inaccuracy.
On the basis of the above embodiments, in order to enable the reagent in sample cup 12 to be uniformly mixed, sample cup can be made
12 are connect by mixing pipeline with air pump 14, and air pump 14 blasts bubble into sample cup 12, makes the reagent in sample cup 12
It is uniformly mixed, and mixing pipeline is provided with the check valve 13 for avoiding the reagent in sample cup 12 from flowing into air pump 14, unidirectionally
One end of valve 13 is connect with sample cup 12, and the other end is connect with air pump 14.
In use process, when needing to blast bubble into sample cup 12, check valve 13 can be opened, not needed to matching
When blasting bubble in sample cup 12, check valve 13 is in close state, and check valve 13 is connect with control device with air pump 14, control
The opening and closing of device control check valve 13 and air pump 14 processed.
Preferably, check valve 13 is the One-way Plastic Valves for being provided with barb, can prevent the reflux of gas or liquid.
The setting of check valve 13 in this embodiment, it is possible to prevente effectively from the reagent in sample cup 12 flows into air pump 14
In, avoid air pump 14 from breaking down.
On the basis of the above embodiments, it is contemplated that the volume of sample cup 12 is larger, in order to reduce by the first peristaltic pump 15
Frequency of usage can be set and quantify flow path for carrying out quantitative pure water to the pure water flowed into sample cup 12, and pure water quantitatively flows
Road includes that pure water quantifies module 17, the second triple valve 19 and quantifies the reversible peristaltic pump 18 that module 17 is connect with pure water, and second
Normally open end, normal-closed end and the common end of triple valve 19 be sequentially connected to sample cup 12, in reagent storage element for holding pure water
Device and reversible peristaltic pump 18, the second triple valve 19 and reversible peristaltic pump 18 are connect with control device.
Preferably, pure water quantifies module 17 and is provided with the second overflow port 16 for quantitative pure water.
During cleaning to pipeline, the second triple valve 19 can be opened, starts reversible peristaltic pump 18, it will be pure
Water extracts to pure water and quantifies module 17, until pure water is flowed out from the second overflow port 16, is then shut off the second triple valve 19, makes can be changed
It is inverted to peristaltic pump 18, pure water is pumped into sample cup 12.
Preferably, reversible peristaltic pump 18 is big flow peristaltic pump.
When the amount of dilution water, which is less than pure water, quantify the volume of module 17, be first added pure water quantify in module 17 quantitative by
Pure water, the pure water being then more than proportionally pass through the first peristaltic pump 15 and mother liquor are added.
In order to reduce the yield of waste liquid, O&M cost is reduced, can be set for mark-on sample or quality-control sample to be discharged
Drain flow path and drainage flow path for pure water to be discharged.
Preferably, it can make that one end of drainage flow path is connected to sample cup 12 and pure water quantifies module 17, other end connection
In waste water mouth 9, and it is provided with the drain valve 11 for controlling drainage flow path opening and closing, the end of waste water mouth 9 is provided with for containing
Put the wastewater barrel of waste water；One end of drain flow path is connected to sample cup 12, and the other end is connected to waste liquid port 8, and is provided with and is used for
The tapping valve 10 of waste liquid passage opening/closing is controlled, the end of waste liquid port 8 is provided with the waste liquid barrel for holding waste liquid.
On the basis of the above embodiments, in order to make monitoring water quality on line equipment dynamic quality control system have self-test
Function can make sample unit be provided with scarce liquid warning device and for receiving produced by the optical signal that liquid reflection optical coupler issues
Reflected light optical detector, lack liquid warning device and optical detector and connect with control device, control device is according to optical detection
The variation that device receives optical signal judge reagent flow through optocoupler time it is whether suitable, to judge whether extracted reagent has been used
It is complete.
For example, the maximum time that reagent passes through the second optocoupler 21 can be arranged in control device, when reagent flows through second
When optocoupler 21, the light that reagent liquid level can issue the second optocoupler 21 reflects, and corresponding optical detector is made to receive optical signal,
When the optical signal that optical detector receives changes, then it represents that the volume quantitatively extracted is completed, and passes through control device control
The first peristaltic pump 15 is made to stop working.It is more than the maximum time upper limit when extracting the time, and there is no stop for the first peristaltic pump 15
Work then illustrates that the pure water extracted or mother liquor are in water shortage or scarce liquid status, and control device, which controls, lacks the alarm of liquid warning device.
Pure water or mother liquor are stored for convenience, the reagent storage that can be set for placing pure water and mother liquor is single
Member, reagent storage element include the pure water reagent bottle 27 and several mother liquor reagent bottles for being used to hold mother liquor for holding pure water,
Pure water reagent bottle 27 and mother liquor reagent bottle pass through BULKHEAD UNION and extraneous piping connection.
During use, due to needing to open appliance doors, big face will not occur for reagent storage element and the external world
Long-pending heat transfer ensure that the cryogenic property of pure water and mother liquor.
Temperature sensor and refrigeration warning device, temperature sensor and refrigeration report can also be set in reagent storage element
Alert equipment is all connected to control device, and control device judges whether cryogenic temperature is suitable according to the temperature value of temperature sensor,
When the cryogenic temperature detected by the temperature sensor does not meet the temperature originally set in control device, control device control system
Cold warning device alarm, staff can be adjusted temperature according to warning note.
It is of course also possible to control device controls refrigeration equipment heating or cooling while being refrigeration warning device alarm, when
When temperature reaches OK range, refrigeration warning device automatically terminates alarm.
On the basis of the above embodiments, in order to preferably be saved to the reagent in reagent storage element, Ke Yi
Refrigeration equipment for carrying out temperature adjusting automatically according to reagent type, and refrigeration equipment and control are set in reagent storage element
Device connection, control device control the change of refrigeration equipment temperature according to the difference between current refrigeration temperature and required cryogenic temperature
Change.
On the basis of the above embodiments, 15 long-time use of the first peristaltic pump will cause accuracy decline, in order to avoid because
The precision problem of first peristaltic pump 15 and keep monitoring result inaccurate, can be arranged in control device for detecting the first wriggling
Pump 15 whether He Ge controller, sample unit is provided with the first peristaltic pump precision warning device connected to the controller.
Specific detection process is as follows, for example, the reagent that can will can be accommodated between the first optocoupler 20 and the second optocoupler 21
Volume input controller opens pure water channel 26, starts the first peristaltic pump 15, and the timer in controller passes through second from reagent
Optocoupler 21 starts timing, and reagent reaches the first optocoupler 20 and stops timing, records the time, and be compared with the time before；When
After first peristaltic pump, 15 longtime running, due to the decaying of the pump line of the first peristaltic pump 15, cause liquid from 21 transition of the second optocoupler
Time to the first optocoupler 20 extends, and is needed at this time according to identical amount, different time scales carries out the first peristaltic pump 15
Automatic calibration, updates correction coefficient.
In another embodiment, as shown in Figure 1, the dynamic quality control system of monitoring water quality on line equipment includes matching
Sample unit, control device and the reagent storage element for storing pure water and mother liquor, sample unit and control device and water quality exist
Line monitoring device 1 connects, and pure water reagent bottle 27, the first mother liquor reagent bottle 28, digital display refrigeration are placed in reagent storage element and is set
Standby 29, second mother liquor reagent bottle 30, pure water reagent bottle 27 are connect with the pure water channel 26 in multi-pass valve module 22, the examination of the first mother liquor
Agent bottle 28 is connect with the first mother liquor channel 23 in multi-pass valve module 22, in the second mother liquor reagent bottle 30 and multi-pass valve module 22
Second mother liquor channel 24 connects, and is additionally provided with air duct 25, one end of multi-pass valve module 22 and second in multi-pass valve module 22
Optocoupler 21 connects, and the second optocoupler 21 is connect with the first optocoupler 20, and one end of the first peristaltic pump 15 connect another with the first optocoupler 20
End is connect with sample cup 12；The first overflow port 5 and leakage fluid dram 6 are provided on sample cup 12, the first overflow port 5 and leakage fluid dram 6 are equal
It is connect with waste water flow path, the bottom of one end connection sample cup 12 of the drain valve 11 in waste water flow path, the other end connects waste water mouth
9, one end of the tapping valve 10 in waste liquid flow path is connected to the bottom of sample cup 12, and the other end is connected to waste liquid port 8, sample cup 12
Bottom be additionally provided with check valve 13, the bottom of one end connection sample cup 12 of check valve 13, the other end is connected to air pump 14；
Monitoring water quality on line equipment 1 is connect by the first triple valve 2 with sample cup 12, the normal-closed end of the first triple valve 2, normally open end, public affairs
End is sequentially connected to sample cup 12, water sample cup 4, monitoring water quality on line equipment 1 altogether, and monitoring water quality on line equipment 1 is compacted by the 4th
Dynamic pump 31 is connect with waste liquid port 8；Water sample cup 4 is connect by the second peristaltic pump 3 with sample cup 12；Second triple valve 19 it is normally closed
End, normally open end and common end are sequentially connected to pure water reagent bottle 27, sample cup 12, reversible peristaltic pump 18, reversible peristaltic pump
18 other end is connected to pure water and quantifies module 17, and pure water quantifies module 17 and is provided with the second overflow port connecting with waste water flow path
16。
Preferably, the 4th peristaltic pump 31 is set to one end as close as possible to monitoring water quality on line equipment 1, it is ensured that will not
Due to sample delivery distance extension and lead to sampling distortion.
In the process of work, firstly, being carried out to the pipeline in the dynamic quality control system of monitoring water quality on line equipment
The pure water channel 26 in multi-pass valve module 22 is opened in cleaning, starts the first peristaltic pump 15, pure water is discharged into sample cup 12, is filled
Divide detergent line.But since the volume of sample cup 12 is relatively large, the dilute of the purpose and subsequent sample sufficiently cleaned is realized
It releases, the pure water needed is relatively more, therefore in order to reduce the frequency of usage of the first peristaltic pump 15, prolong the service life, improves simultaneously
Another flow path in system then may be selected in sample efficiency, the pure water sample introduction of large volume；Detailed process are as follows: open the second threeway
Valve 19 starts reversible peristaltic pump 18, and pure water is extracted to pure water and quantifies module 17, until pure water overflows from the second overflow port 16
It flow to waste water mouth 9.It is then shut off the second triple valve 19, reversible peristaltic pump 18 is inverted, pure water is sent into sample cup 12.It beats
It opens air pump 14, after the completion of abundant pressure pulse cleaning, opens drain valve 11 and directly empty ejected wash water.Then water sample is extracted and to water sample
It is tested and analyzed, opens the first triple valve 2, directly initiate monitoring water quality on line equipment 1, the water sample in water sample cup 4 is carried out
It tests and analyzes；Then start mark-on process, start the second peristaltic pump 3, water sample is drawn into sample cup 12 from water sample cup 4, directly
To water sample from 5 overflow of the first overflow port, the second peristaltic pump 3 is closed, opens third peristaltic pump 7 for the water sample in sample cup 12 from row
Liquid mouth 6 is discharged, and realizes constant volume, turns off third peristaltic pump 7.The mode of this constant volume makes other than executing mark-on reclaims process,
Other time section water sample does not pass through sample cup 12, can be trapped in for a long time sample cup 12 to avoid the actual water sample of complicated component
In, and pollute prepared quality-control sample.According to the principle of recovery of standard addition, the volume of mark-on is usually no more than original volume
1%, just think that mark-on volume can be ignored.Therefore the volume of mark-on belongs to small volume, can pass through 20 He of the first optocoupler
Second optocoupler 21 is flexibly quantitative.According to target spiked levels, automatically switch the channel of selection mother liquor, select suitable optocoupler into
Row is quantitative.After the completion of quantitative, the air duct 25 in multi-pass valve module 22 is opened, starts the first peristaltic pump 15, it will be fixed in pipeline
The mother liquor that amount is completed all is discharged into sample cup 12, is opened air pump 14 and is bubbled mixing.Open the first triple valve 2, starting second
Peristaltic pump 3, by the abundant rinse pipeline of water sample after mark-on.Stop the second peristaltic pump 3, starting monitoring water quality on line equipment 1 samples
It is analyzed.
Control device is used to control all valve bodies and wriggling in the dynamic quality control system of monitoring water quality on line equipment
The movement of the related elements such as pump, and obtained information is tested and analyzed.
It needs to be illustrated, the dynamic quality control system of monitoring water quality on line equipment provided in the present invention passes through
First optocoupler 20 and the second optocoupler 21, the first peristaltic pump 15, pure water quantify the structure quantitative totally four of module 17 and sample cup 12
Kind quantitative manner, settles quality-control sample and the process for preparation of mark-on sample at one go, without carrying out second level even three-level dilution,
Equipment cost is effectively reduced, while avoiding the superposition of dosing device error, keeps the result of sample more accurate.It measures pure
The mode that water is added is diluted, and is avoided the second level even diluted process of three-level in the prior art, is reduced dilution error.
It needs to be illustrated, reagent mentioned in the present invention includes the mother liquor of pure water and various concentration, certainly may be used
To be other liquid such as mark-on sample or quality-control sample, determined with specific reference to actual conditions.
In addition, the first peristaltic pump 15 mentioned in the present invention, the second peristaltic pump 3, third peristaltic pump 7, the 4th peristaltic pump 31,
First triple valve 2, the second triple valve 19, the first optocoupler 20, the second optocoupler 21, the first mother liquor channel 23, the second mother liquor channel 24,
In first overflow port 5 and the second overflow port 16 first, second, third and fourth simply to illustrate that position difference, not
It is divided into sequencing.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.All realities provided by the present invention
Any combination mode of example is applied in the protection scope of the invention, this will not be repeated here.
The dynamic quality control system of monitoring water quality on line equipment provided by the present invention is described in detail above.
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improvement and modification
It falls into the protection scope of the claims in the present invention.
Claims (6)
1. a kind of dynamic quality control system of monitoring water quality on line equipment characterized by comprising for being supervised online for water quality
Measurement equipment (1) provides the sample unit of mark-on sample and quality-control sample, the control device connecting with the sample unit；
The sample unit includes the first peristaltic pump (15) for quantitatively extracting pure water and mother liquor and wriggles to described first
The pure water and the mother liquor that pump (15) extracts carry out quantitative optocoupler, first peristaltic pump (15) and the optocoupler with
Control device connection, the control device are used to receive first peristaltic pump (15) and quantitative described pure of the optocoupler
The testing result of the volume information and the monitoring water quality on line equipment (1) of water and the mother liquor, judges that the water quality is online
Whether the monitoring data of monitoring device (1) are accurate, and control the sample unit and prepare the quality-control sample or carry out water sample and add
Mark operation；
The optocoupler includes the first optocoupler (20) and the second optocoupler (21), and first optocoupler (20) and second optocoupler
(21) it is arranged at intervals at the extraction tube road for connecting first peristaltic pump (15) and the pure water and the mother liquor；
The sample unit is provided with the sample cup (12) for preparing mark-on sample or quality-control sample, the sample cup (12) with
First peristaltic pump (15) and the connection of water sample apparatus for placing, the sample cup (12) are provided with for quantitative first volume
First overflow port (5) and leakage fluid dram (6) for quantitative second volume, and the first volume is greater than the second volume；
The sample unit further includes quantifying flow path for carrying out quantitative pure water to the pure water flowed into the sample cup (12),
The pure water quantify flow path include the second triple valve (19), the pure water that is connect with the sample cup (12) quantify module (17) and with
The pure water quantifies the reversible peristaltic pump (18) of module (17) connection；
Normally open end, normal-closed end and the common end of second triple valve (19) are sequentially connected to the sample cup (12), for containing
Put the device and the reversible peristaltic pump (18) of the pure water, second triple valve (19) and the reversible peristaltic pump
(18) it is connect with the control device；
The control device be provided with for detect the first peristaltic pump (15) precision whether He Ge controller, the sample
Unit is provided with the first peristaltic pump precision warning device connecting with the controller, and the controller is wriggled according to described first
Pump (15) extracts the precision for the time used in the pure water or the mother liquor of determined volume judging first peristaltic pump (15)
It is whether qualified, to control the first peristaltic pump precision warning device when the first peristaltic pump (15) precision is unqualified
Alarm, and the different time ratio according to needed for the liquid flowed through between first optocoupler (20), the second optocoupler (21) is to institute
The first peristaltic pump (15) is stated to be calibrated automatically.
2. the dynamic quality control system of monitoring water quality on line equipment according to claim 1, which is characterized in that described to match
Sample cup (12) is connected to by mixing pipeline with the air pump (14) for blasting bubble into the sample cup (12), the mixing
Pipeline is provided with the check valve (13) for avoiding the liquid inflow air pump (14) in the sample cup (12), described unidirectional
Valve (13) and the air pump (14) are connect with the control device.
3. the dynamic quality control system of monitoring water quality on line equipment according to claim 1 or 2, which is characterized in that institute
It states sample unit and is provided with drain flow path for the mark-on sample or the quality-control sample to be discharged and described for being discharged
The drainage flow path of pure water.
4. the dynamic quality control system of monitoring water quality on line equipment according to claim 3, which is characterized in that described to match
Sample unit is provided with scarce liquid warning device and for receiving reflected light caused by the optical signal that optocoupler described in reflection liquid issues
Optical detector, the scarce liquid warning device and the optical detector connect with the control device, the control device root
The pure water is obtained according to the variation that the optical detector receives optical signal or the mother liquor flows through the time of optocoupler, judges to be extracted
The pure water or the mother liquor whether be in scarce liquid status, so as to lack liquid status when control the scarce liquid warning device report
It is alert.
5. the dynamic quality control system of monitoring water quality on line equipment according to claim 4, which is characterized in that further include
For placing the reagent storage element of the pure water and the mother liquor, the reagent storage element includes for holding the pure water
Pure water reagent bottle (27) and several for holding the mother liquor reagent bottle of the mother liquor, the pure water reagent bottle (27) and the mother
Liquid reagent bottle passes through BULKHEAD UNION and extraneous piping connection.
6. the dynamic quality control system of monitoring water quality on line equipment according to claim 5, which is characterized in that the examination
Agent storage element is provided with temperature sensor and refrigeration warning device, and the temperature sensor and the refrigeration warning device connect
It is connected to the control device, whether the control device judges cryogenic temperature according to the temperature value that the temperature sensor is tested
Properly, it alarms not conform to refrigeration warning device described in reed time controll in the cryogenic temperature.
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| CN111855372A (en) * | 2020-08-26 | 2020-10-30 | 福州致友环境科技有限公司 | Dynamic precision type water sample proportioning device |
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| CN114910622B (en) * | 2022-06-22 | 2023-08-08 | 清华苏州环境创新研究院 | Calibration device and method for water quality monitoring Internet of things sensor |
| CN115137506B (en) * | 2022-07-05 | 2024-03-08 | 桂林市啄木鸟医疗器械有限公司 | Dental planter and peristaltic pump control method and control system thereof |
| CN116338221B (en) * | 2023-05-24 | 2023-08-11 | 河北华清环境科技集团股份有限公司 | Quality control equipment for online automatic monitoring of water quality |
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