CN105738287B - Water Test Kits - Google Patents
Water Test Kits Download PDFInfo
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- CN105738287B CN105738287B CN201410769262.4A CN201410769262A CN105738287B CN 105738287 B CN105738287 B CN 105738287B CN 201410769262 A CN201410769262 A CN 201410769262A CN 105738287 B CN105738287 B CN 105738287B
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Abstract
A kind of Water Test Kits that can at low cost the presence or absence of liquid such as water sample, reagent or dilution water be carried out with good detection is provided.It is detected using temperature of the temperature sensor (42,53) to the liquid flowed into the inflow part such as reactor, measurement container, based on its temperature change, the inflow state of the sample flowed in inflow part is determined by flowing into state determination processing unit (102).When liquid flow enters in inflow part, bigger variation occurs for the temperature of inflow part, and in the case where liquid does not flow into inflow part, such variation will not occur.Therefore, when supplying liquid into inflow part, there is no in the case where the temperature change as usually occurring, it is possible to determine that does not have to flow into the liquid of set amount in inflow part.
Description
Technical field
The present invention relates to a kind of Water Test Kits for being analyzed the ingredient in water sample.
Background technique
In such as Water Test Kits such as total nitrogen total phosphorus analyzer, the basis in water sample is mixed in reagent, dilution water
On, which is oxidized in the reactor, and the concentration of the ingredient in mixed liquor after being oxidized measures (example by determination part
Such as referring to patent document 1 below).The water sample (mixed liquor) after being supplied to reaction in the reactor is provided in determination part
Container is measured, the transmitted light of the light for the water sample being irradiated in measurement container is detected by detector, thus based on its inspection
Signal is surveyed to be measured total nitrogen concentration (TN concentration), the total phosphorus concentration (TP concentration) in water sample.
In this Water Test Kits, the liquid such as water sample, reagent and dilution water flow into reactor or measurement container.In the presence of
The case where being supplied water sample online by piping to Water Test Kits from drainage equipment etc., there is also preparatory acquisition water samples and offline
The case where water sample is placed in Water Test Kits by ground.Reagent and dilution water are for example placed with the state for being accumulated in accumulation unit
In Water Test Kits.It is respectively arranged with temperature sensor in reactor and measurement container, carries out temperature in the analysis process
Degree is adjusted so that internal liquid becomes set temperature.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2000-266677 bulletin
Summary of the invention
Subject to be solved by the invention
In reactor, measurement container, the liquid such as water sample, reagent or dilution water are supplied only by set amount.At this point,
If be placed in offline the water sample of Water Test Kits or be accumulated in accumulation unit reagent or dilution water it is inadequate if, deposit
There is the situation that the liquid of set amount can not be supplied to reactor or be measured container.Also, in the water supplied online
In the case that sample is unable to reach Water Test Kits, then water sample can not be supplied to reactor or measurement container.
Here, contemplating using sensors such as float sensors, to the liquid for being supplied to reactor or measurement container
Whether there is or not carry out detecting such structure.But it such as is let out in the way of the piping with reactor or measurement reservoir in liquid
Leakage under such circumstances, even if using the sensors such as float sensor, can not probably detect the presence or absence of liquid.Also, also
Cost is caused to get higher such problems in the presence of other setting sensor.
Present invention has been made in view of the above circumstances, its purpose is to provide one kind can low cost and detect well
The Water Test Kits of the presence or absence of the liquid such as water sample, reagent or dilution water.
The means used to solve the problem
Water Test Kits according to the present invention has inflow part, temperature sensor and flows into state determination processing unit.
Water sample, reagent or dilution water individually or as mixed liquor flow into the inflow part.The temperature sensor is to the stream
The temperature for entering the liquid in portion is detected.Inflow state determination processing unit is based on temperature sensor temperature detected
The variation of degree determines the inflow state of the liquid flowed in the inflow part.
According to this structure, the temperature that the liquid in inflow part can be entered by temperature sensor convection current is detected,
Determined based on its temperature change come the inflow state to the sample flowed in inflow part.That is, entering in inflow part in liquid flow
When, bigger variation occurs for the temperature of inflow part, and in the case where liquid does not flow into inflow part, it will not occur such
It changes.It therefore, can when supplying liquid into inflow part there is no in the case where the temperature change as usually occurring
To be determined as the liquid for not having to flow into set amount in inflow part.
It in this case, also can be right even if in the case where liquid leaks in the way for the piping being connected to inflow part
The presence or absence of liquid is detected, therefore compared with using structure as the sensors such as float sensor, can be detected well
The presence or absence of liquid such as water sample, reagent or dilution water.Also, being that temperature required for a timing passes by the control of the temperature of inflow part
In the case that sensor is arranged in Water Test Kits from the beginning, due to not needing that sensor in addition is arranged, so can be low
At the presence or absence of local detection liquid.
The inflow part can be the reactor for reacting the ingredient in water sample or be supplied in the reactor
The measurement container of water sample after reaction.
It according to this structure, can be to water sample, reagent or the dilution water for being supplied to reactor or measurement container
The presence or absence of equal liquid carry out good detection.Especially, it in reactor or measurement container, is usually provided with the temperature of inflow part
Degree control is temperature sensor required for a timing, therefore by using the temperature sensor, sensing can not in addition be arranged
Device can detect the presence or absence of liquid at low cost.
Inflow state determination processing unit is based within a certain period of time by temperature sensor temperature detected
Variation, determines the inflow state of the mixed liquor flowed in the inflow part, and the certain time is using as mixed liquor
It flows on the basis of the inlet time of the water sample in the inflow part, reagent and dilution water.
According to this structure, by being detected to the temperature change generated when mixed liquor flows into inflow part, energy
Enough detect the presence or absence of mixed liquor.Since the mixed liquor of water sample, reagent and dilution water in analysis flows into reactor or measurement appearance
In device, therefore based on the temperature change in the certain time on the basis of the inlet time, mixed liquor can be detected well
Whether there is or not.
It inflow state determination processing unit can be based within a certain period of time by temperature sensor temperature detected
The variation of degree determines that the certain time is with individually to the inflow state of the dilution water flowed in the inflow part
It flows on the basis of the inlet time of the dilution water in the inflow part.
According to this structure, by being detected to the temperature change generated when dilution water flow enters in inflow part, energy
Enough detect the presence or absence of dilution water.Due to cleaning when dilution water individually flow into reactor or measurement container in, based on
The temperature change in certain time on the basis of the inlet time, can detect the presence or absence of dilution water well.
The Water Test Kits can also have the judgement result notice based on inflow state determination processing unit abnormal
Abnormal notifier processes portion.
According to this structure, when supplying liquid into inflow part, there is no the temperature changes as usually occurring
In the case where, it is determined as in inflow part the liquid for not having to flow into set amount, it can be abnormal based on the judgement result notice.Therefore,
It can prevent the case where being analyzed under abnormality.
Invention effect
According to the present invention, even if liquid leakage occurs under such circumstances in the way for the piping being connected to inflow part,
It is able to detect no liquid, so the presence or absence of liquid such as water sample, reagent or dilution water can be detected well.Also, according to this
Invention, due to not needing that sensor in addition is arranged, so can be with lower at original detection water sample, reagent or dilution water etc.
The presence or absence of liquid.
Detailed description of the invention
Fig. 1 is the skeleton diagram for showing the structural example of Water Test Kits involved in an implementation form of the invention.
Fig. 2 is the block diagram for showing the electrical structure of Water Test Kits of Fig. 1.
Fig. 3 A is the figure for showing the temperature change of the liquid in reactor, shows water sample, reagent and dilution water quilt
Temperature change in the case where normally supplying to reactor.
Fig. 3 B is the figure for showing the temperature change of the liquid in reactor, shows water sample not by normal supply to reactor
Temperature change in the case where interior.
Fig. 3 C is the figure for showing the temperature change of the liquid in reactor, shows dilution water not by normal supply to reaction
Temperature change in the case where in device.
Fig. 4 A is the figure for showing the temperature change of the liquid in measurement container, and it is equal to show water sample, reagent and dilution water
Temperature change in the case where normally being supplied to measurement container.
Fig. 4 B is the figure for showing the temperature change of the liquid in measurement container, shows water sample not by normal supply to measurement
Temperature change in the case where in container.
Fig. 4 C is the figure for showing the temperature change of the liquid in measurement container, shows dilution water not by normal supply to survey
Temperature change in the case where in constant volume device.
Specific embodiment
Fig. 1 is the skeleton diagram for showing the structural example of Water Test Kits involved in an implementation form of the invention.This implementation
Water Test Kits involved in form is the total nitrogen concentration (TN concentration) and total phosphorus concentration (TP concentration) that can measure water sample
Total nitrogen total phosphorus analyzer illustrates only structure related with the flow path of the liquid such as water sample in Fig. 1.
Water sample is sewage, river water or plant drainage etc., includes the various compositions such as nitride, phosphide.In water sample
Nitride for example exists as nitrate ion, nitrite ion, ammonium ion and organic nitrogen.In the total nitrogen concentration to water sample
When being measured, make all nitride oxides in water sample at nitrate ion after, its concentration is measured.
Also, the phosphide in water sample for example exists as phosphate ion, hydrolyzable phosphorus and organic phosphorus.To water
When the total phosphorus concentration of sample is measured, it is oxidized to all phosphides in water sample after phosphate ion, its concentration is surveyed
It is fixed.
In the Water Test Kits involved in this implementation form, setting has such as the first multiported valve 1, the second multiport
Valve 2, syringe 3, reactor (reactor) 4, measurement container 5, mixing pump 6, discharge pump 7, the first switching valve 8 and second cut
Change valve 9 etc..These all parts are connected with each other by piping.
First multiported valve 1 and the second multiported valve 2 are for example made of eight ways valve, be respectively provided with a common port and
Eight ports (the first~the 8th port) that can be selectively connected to the common port.In Fig. 1, in the first multiported valve
1 and second multiported valve 2 each port, the number of " 1 "~" 8 " is correspondingly denoted with the first~the 8th port respectively.
The common port of first multiported valve is connect with the first port of the second multiported valve 2.Second multiported valve 2 is total to
It is connect with port with syringe 3.Syringe 3 has such as cylinder 31 and plunger 32, passes through the column for making to be inserted into cylinder 31
32 displacement of plug is able to carry out and acts to the attraction of syringe 3 and from the discharging operation of syringe 3.
It acquires in advance and is placed on the water sample of Water Test Kits and supplied offline from water sample accumulation unit (not shown) to the
The first port of one multiported valve 1.Therefore, it is connected to the first port of the first multiported valve 1 with common port and more than second
It, can be offline if carrying out the attraction movement of syringe 3 in the state that the first port of port valve 2 is connected to common port
Water sample is supplied to syringe 3.
Water sample is supplied online by piping to the second end of the first multiported valve 1 from the water samples supply source such as drainage equipment
Mouthful.Therefore, it is connected to the second port of the first multiported valve 1 with common port and is making the first port of the second multiported valve 2
In the state of being connected to common port, if carrying out the attraction movement of syringe 3, water sample can be supplied to injection online
In device 3.At this point, the sample supplied online has been after having carried out defined pre-treatment by such as pretreating device (not shown),
It is supplied to second port.
Accumulation has the reagent accumulation unit 21~26 of different reagents to be connected to the second~the 7th of the second multiported valve 2
Port.It is acted, can will be tried by the attraction for being connected to some port of these ports with common port and carry out syringe 3
Agent is supplied in syringe 3 and mixing reagent with water sample.It, can be with as being accumulated in the reagent of each reagent accumulation unit 21~26
Illustration has sulfuric acid, molybdic acid, ascorbic acid (ア ス U Le ビ Application acid), sodium hydroxide, peroxide and hydrochloric acid etc., but does not limit
In this, any other reagent can be accumulated in reagent accumulation unit 21~26.
Dilution water accumulation unit 12 is connected to the 6th port of the first multiported valve 1.When being diluted to water sample, clean instead
The dilution water used when answering device 4 or measuring container 5 etc. is accumulated in dilution water accumulation unit 12.Make the first multiported valve 1
The 6th port be connected to common port and be connected to the first port of the second multiported valve 2 with common port in the state of, such as
Fruit carries out the attraction movement of syringe 3, can supply dilution in syringe 3 and mixing dilution with water sample.
In this way, by suitably switching the first multiported valve 1 and the second multiported valve 2, and carry out the attraction of syringe 3
Movement, can generate the mixed liquor of water sample, reagent and dilution water in syringe 3.Mixed liquor in syringe 3 passes through stirring
It pumps 6 driving and is stirred.Reactor 4 is connected to the 4th port of the first multiported valve 1, makes the 4th port and is sharing end
In the state that mouth is connected to and is connected to the first port of the second multiported valve 2 with common port, if carrying out the row of syringe 3
It acts, then the mixed liquor in syringe 3 can be supplied to reactor 4 out.
Reactor 4 is the inflow part that water sample, reagent and dilution water are flowed into as mixed liquor, by from 41 pairs of inside of light source
Mixed liquor irradiate ultraviolet light, make the various compositions such as nitride, the phosphide in water sample aoxidize.As light source 41, such as can be with
Using Cooper-Hewitt lamp, but not limited to this, can use excimer laser, deuterium lamp, xenon lamp or Hg-Zn-Pb
The other light sources such as lamp 41.Liquid in reactor 4 is for example, by heater (not shown) Lai Jiare.At this point, based on to anti-
The detection signal for the temperature sensor 42 (referring to Fig. 2) for answering the temperature of the liquid in device 4 to be detected is controlled, so that liquid
Temperature become predetermined temperature.
Mixed liquor after reaction in the reactor 4 (after oxidation) is supplied to injection by the attraction movement of syringe 3
In device 3.Measurement container 5 is connected to the 7th port of the first multiported valve 1, being connected to the 7th port with common port and
In the state of being connected to the first port of the second multiported valve 2 with common port, if carrying out the discharging operation of syringe 3,
Mixed liquor in syringe 3 can be supplied to measurement container 5.
Measurement container 5 is the inflow part that the water sample (mixed liquor) after the reaction in reactor 4 flows into, from 51 pairs of inside of light source
Water sample irradiation measurement light.As light source 51, such as xenon lamp can be used, but not limited to this, can use deuterium lamp
Or other light sources 51 such as tengsten lamp.Through measurement container 5 measurement light for example by the detectors such as photodiode 52 come
Detection, based on its detect signal in water sample total nitrogen concentration or total phosphorus concentration be measured.Measure the liquid example in container 5
Such as pass through heater (not shown) Lai Jiare.At this point, based on the temperature detected from the temperature to the liquid in measurement container 5
The detection signal of degree sensor 53 (referring to Fig. 2) is controlled, so that the temperature of liquid becomes predetermined temperature.
In addition, not only the mixed liquor of water sample, reagent and dilution water flows into reactor 4 or measurement container 5, there is also dilute
Water is released individually to flow into reactor 4 or measure the situation in container 5.That is, dilution water is individually attracted in syringe 3, make
It, can be to being cleaned in reactor 4 if the dilution water flows into reactor 4 from syringe 3.Also, dilution water is individually inhaled
Lead in syringe 3, make the dilution water from syringe 3 flow into measurement container 5 if, can to measurement container 5 in clean.
Range liquid accumulation unit 11 is connected to the third port of the first multiported valve 1.Accumulating in range liquid accumulation unit 11 has
The range liquid used when carrying out span calibration.It is connected to the third port of the first multiported valve 1 with common port and is making
It, can if carrying out the attraction movement of syringe 3 in the state that the first port of two multiported valves 2 is connected to common port
Range liquid is supplied from range liquid accumulation unit 11 to syringe 3.Thereafter, by make the 7th port of the first multiported valve 1 with
Common port connection, carry out syringe 3 discharging operation, range liquid can be supplied to measurement container 5 in carry out range school
Just.
Two standard sample accumulations all 13,14 are connect by the first switching valve 8 with the 8th port of the first multiported valve 1.
In standard sample accumulation unit 13,14, accumulation has in the standard sample use when zero correction respectively, marks for one wherein
Accumulation has the standard sample of total nitrogen concentration measurement in quasi- sample accumulation unit 13, accumulates in another standard sample accumulation unit 14
There is the standard sample of total phosphorus concentration measurement.First switching valve 8 can selectively make two standard samples by switching flow path
One of them in accumulation unit 13,14 is connected to the 8th port.
It is connected to the 8th port of the first multiported valve 1 with common port and is making the first port of the second multiported valve 2
It, can be from two standard sample accumulation units if carrying out the attraction movement of syringe 3 in the state of being connected to common port
13, one of them in 14 supplies standard sample to syringe 3.Thereafter, by making the 7th port of the first multiported valve 1
It is connected to common port, and carries out the discharging operation of syringe 3, standard sample can be supplied in measurement container 5 to carry out
Zero correction.
Liquid in measurement container 5 is discharged to outside device as waste liquid.Also, about the liquid in reactor 4, also by row
The driving of pump 7 is discharged to outside device as waste liquid out.The fifth port of first multiported valve 1 passes through the second switching valve 9 and waste liquid
Discharge ground and draining discharge ground connection.Second switching valve 9 selectively can be led the liquid in device by switching flow path
One of them in ground or draining discharge ground is discharged to waste liquid out.
Fig. 2 is the block diagram for showing the electrical structure of Water Test Kits of Fig. 1.The movement of the Water Test Kits for example passes through packet
Control unit 100 containing CPU (central processing unit (Central Processing Unit)) controls.In addition to above-mentioned each portion
Part, control unit 100 are also electrically connected with storage unit 200 and display unit 300 etc..
Control unit 100 by CPU execute program as analysis and Control portion 101, flow into state determination processing unit 102 and
Abnormal notifier processes portion 103 etc. plays a role.Storage unit 200 is including, for example, RAM (random access memory (Random
Access Memory)), the structure of ROM (read-only memory (Read Only Memory)) or hard disk, be stored with water quality point
Data required for the movement of analyzer.Display unit 300 is for example made of liquid crystal display, to the analysis result of water sample, other
Necessary information shown.
Analysis and Control portion 101 carries out the movement of above-mentioned each component based on the analysis program being stored in storage unit 200
Control, thus processing required for the analysis to carry out water sample.Specifically, analysis and Control portion 101 to the first multiported valve 1 with
And second multiported valve 2 switch over, and make syringe 3, mixing pump 6, discharge pump 7, the first switching valve 8 and second cut for valve
9 appropriate movements.Water sample, reagent or dilution water individually or as mixed liquor are transported to reactor 4 as a result, measurement is held
Device 5, other supply destination (including waste liquid discharge ground or draining discharge ground.).
Analyzing program includes the time with the first multiported valve 1 of switching or the second multiported valve 2, makes syringe 3, stirring
The actuation time related information of each components such as pump 6, discharge pump 7, the first switching valve 8 or the time of the second switching valve 9 movement.
These actuation times can determine according to setting conditions such as the temperature of the preset liquid of operator, supply amounts.
Inflow state determination processing unit 102 is carried out for determining the inflow state to reactor 4, the liquid for measuring container 5
Processing.Specifically, based on from the temperature sensor 42 that the fluid temperature in reactor 4 is detected, to measurement hold
The equal detection signal of temperature sensor 53 that fluid temperature in device 5 is detected, by flow into state determination processing unit 102 come
Monitor the temperature change of these liquid.When liquid is flowed into reactor 4 or is measured in container 5, reactor 4 or measurement container 5
Temperature bigger variation can occur, and in liquid does not flow into reactor 4 or measurement container 5 in the case where, will not
Such change occurs.Therefore, when supplying liquid into reactor 4 or in measurement container 5, there is no what is usually occurred
In the case where such temperature change, it is possible to determine that do not have in reactor 4 or in measurement container 5 to flow into the liquid of set amount.
In this case, even if as being leaked in the way for the piping being connected to reactor 4, measurement container 5 in liquid
In the case of, the presence or absence of liquid can also be detected, therefore compared with using structure as the sensors such as float sensor,
The presence or absence of liquid such as water sample, reagent or dilution water can be detected well.Also, as in the present embodiment, reactor 4,
It measures in container 5, being usually provided with the temperature control of inflow part is temperature sensor 42,53 required for a timing, therefore
Using the temperature sensor 42,53, in addition sensor can not be set, the presence or absence of liquid can be detected at low cost.
In addition, if above-mentioned " temperature change as usually occurring " occurs can be judged by various states.
For example, the difference (variation) of the maxima and minima of temperature within a certain period of time is in threshold value situation below, certain
The gradient of temperature change in time is in threshold value situation below or does not reach according to the temperature change in certain time
The case where temperature of anticipation, is inferior, can be judged as that there is no the temperature changes as usually occurring, it can be determined that instead
Answering does not have the liquid of inflow set amount in device 4 or in measurement container 5.
Above-mentioned certain time is come on the basis of the time that liquid should flow into the inflow part such as reactor 4, measurement container 5
Determine ratio more preferably.The time that liquid should flow into inflow part can based on the analysis program being stored in storage unit 200 come
Judged.That is, can should be flowed based on information related with analysis program actuation time of each component for being included to liquid
The time entered in inflow part is predicted.Can on the basis of the time, such as with since the time certain time or
Form as certain time comprising the time, to set when the inflow state to the liquid for flowing to inflow part determines
Period.
For example, can using flow into reactor 4 as mixed liquor or measure water sample in the inflow part such as container 5, reagent with
And on the basis of the inlet time of dilution water, to set above-mentioned certain time.In this case, using temperature sensor 42,53 come
Detect the mixed liquor in the certain time and flow into the temperature change that generates when in inflow part, thus, it is possible to the presence or absence of mixed liquor into
Row detection.That is, in reactor 4 or measurement container 5, due to flowing into the mixed liquor of water sample, reagent and dilution water in analysis,
So can be carried out to the presence or absence of mixed liquor good based on the temperature change in the certain time on the basis of the inlet time
Detection.
But be not limited to the presence or absence of the mixed liquor in detection inflow part, also can individually to water sample, reagent or
The presence or absence of dilution water is detected.For example, when cleaning the inflow part such as reactor 4 or measurement container 5 etc., it can be individually to flow
On the basis of the inlet time for entering the dilution water in the inflow part, to set above-mentioned certain time.In this case, inspection can be passed through
The temperature change generated when dilution water individually flows into inflow part in the certain time is surveyed, to examine to the presence or absence of dilution water
It surveys.That is, in reactor 4 or measurement container 5, since dilution waters individually flow into cleaning etc., it is possible to based on this
The temperature change in certain time on the basis of inlet time carries out good detection to the presence or absence of dilution water.
Judgement of the abnormal notifier processes portion 103 based on inflow state determination processing unit 102 is as a result, carry out for notifying exception
Processing.Specifically, it is being determined as that liquid is not flowed into inflow part or flowed by inflow state determination processing unit 102
In the case that amount does not meet set amount, operator is notified by making the situation be shown in display unit 300.
As a result, when supplying liquid into inflow part there is no in the case where the temperature change as usually occurring,
It is determined as the liquid for not having to flow into set amount in inflow part, exception can be notified based on the judgement result.It therefore, can be to prevent
Only analyzed under abnormality.However, the notice in abnormal notifier processes portion 103 is not limited to show, it is also possible to lead to
The structure for crossing other modes such as sound to carry out.
Fig. 3 A~Fig. 3 C is the figure for showing the temperature change of the liquid in reactor 4.Fig. 3 A show water sample, reagent and
Dilution water normally supplied to reactor 4 in the case where temperature change.Fig. 3 B shows water sample not by normal supply
Temperature change in the case where in reactor 4.Fig. 3 C shows dilution water not by the case where in normal supply to reactor 4
Temperature change.
During flowing into reactor 4 as liquid, there is certain period on the basis of the time that only dilution water flows into (dilute
Release T11, T14 during water flows into), certain period on the basis of the time that the mixed liquor of water sample, reagent and dilution water flows into
(T12, T13 during mixed liquor flows into) etc..As shown in Figure 3A, water sample, reagent and dilution water are by normally supply to reaction
In the case where in device 4, during T11, T14 and mixed liquor flow into during dilution water flows into T12, T13, in reactor 4
Biggish variation all occurs for the temperature of liquid.
On the other hand, in the case where water sample is not supplied normally to reactor 4, as shown in Figure 3B, in mixed liquor
T12, T13 during inflow, there is no such variations shown in Fig. 3 A.Also, not supplied normally in dilution water to reactor 4
In the case where interior, as shown in Figure 3 C, T11, T14 during dilution water flows into, there is no such variations shown in Fig. 3 A.This
Sample, there is no the temperature change as usually occurring, it is possible to determine that not just for the liquid such as water sample, dilution water
It often is flowed into reactor 4.
In addition, T12 is to flow into mixed liquor in reactor 4 to be measured to total nitrogen concentration during mixed liquor flows into
During, the temperature of the mixed liquor in the reactor 4 in total nitrogen concentration measurement is for example set to 70 DEG C.Also, mixing liquid stream
Entering period T13 is to measure in order to be measured to total phosphorus concentration and during flowing into mixed liquor in reactor 4 in total phosphorus concentration
In reactor 4 in the temperature of mixed liquor be for example set to 95 DEG C.On the other hand, T11, T14 are during dilution water flows into
During flowing into dilution water in reactor 4.The temperature of mixed liquor in reactor 4 can
To be adjusted to different temperature in total nitrogen concentration measurement and in total phosphorus concentration measurement as described above, also can be adjusted into
Identical temperature.
Fig. 4 A~Fig. 4 C is the figure for showing the temperature change of the liquid in measurement container 5.Fig. 4 A show water sample, reagent with
And dilution water is normally supplied the temperature change in the case where extremely measuring in container 5.It is abnormal that Fig. 4 B shows water sample
Temperature change in the case where in supply to measurement container 5.Fig. 4 C shows dilution water not by normal supply to measurement container 5
In the case where temperature change.
During flowing into measurement container 5 as liquid, there is certain period on the basis of the time that only dilution water flows into
(T2l, T22, T24, T26 during dilution water flows into), on the basis of the time that the mixed liquor of water sample, reagent and dilution water flows into
It is certain during (mixed liquor flow into during T23, T25) etc..As shown in Figure 4 A, normal in water sample, reagent and dilution water
In the case that ground is supplied to measurement container 5, during T2l, T22, T24, T26 and mixed liquor flow into during dilution water flows into
In T23, T25, biggish variation all occurs for the temperature for measuring the liquid in container 5.
On the other hand, it in the case where water sample is not by normally supply to measurement container 5, as shown in Figure 4 B, is mixing
Liquid stream enters period T23, T25, and there is no such variations shown in Fig. 4 A.Also, in dilution water not by normally supply to measurement
In the case where in container 5, as shown in Figure 4 C, T2l, T22, T24, T26 during dilution water flows into, there is no shown in Fig. 4 A that
The variation of sample.In this way, there is no the temperature change as usually occurring, it is possible to determine that for water sample, dilution
The liquid such as water are not flowed into normally in measurement container 5.
In addition, T23 is so that mixed liquor is flowed into measurement container 5 in order to be measured to total nitrogen concentration during mixed liquor flows into
During interior, the temperature of the mixed liquor in the measurement container 5 in total nitrogen concentration measurement is for example set to 50 DEG C.Also, mixing
Liquid stream enter period T25 be in order to be measured to total phosphorus concentration and make mixed liquor flow into measurement container 5 in during, it is dense in total phosphorus
The temperature of the mixed liquor in measurement container 5 in degree measurement is for example set to 50 DEG C.On the other hand, during dilution water flows into
T21, T26 are in order to be cleaned to measurement container 5 and during flowing into dilution water in measurement container 5.Dilution water flows into the phase
Between T22, T24 be in order to the measured light intensity to dilution water is measured and make dilution water flow into measurement container 5 in during.Measurement
The temperature of mixed liquor in container 5 can be adjusted to phase in total nitrogen concentration measurement and in total phosphorus concentration measurement as described above
Same temperature, also can be adjusted into different temperature.
In above implementation form, inflow part is illustrated for the case where reactor 4 or measurement container 5.But
It is to be not limited to such structure, as long as water sample, reagent or dilution water individually flow into or as mixing liquid streams
The inflow part entered can also be made up of other containers or flow path etc..
Water Test Kits is not limited to tool there are two the structure of multiported valve 1,2, can be and is provided only with a multiport
The structure of valve is also possible to be provided with the structure of 3 or more multiported valves.As long as also, at least having water sample, reagent or dilute
Release water individually flow into or as mixed liquor flow into inflow part Water Test Kits, the type and quantity of valve, piping etc. are all
It is arbitrary, is not limited to structure as above-mentioned implementation form.
Further, the present invention is not limited to total nitrogen total phosphorus analyzer, can be adapted for total organic carbon analyzer etc. its
His arbitrary Water Test Kits.In this case, the reactor that reactor 4 is not limited to make the ingredient in water sample to aoxidize,
It can be the reactor for reacting the ingredient in water sample in a manner of the others restoring.
The explanation of symbol
1 first multiported valve
2 second multiported valves
3 syringes
4 reactors
5 measurement containers
6 mixing pumps
7 discharge pumps
8 first switching valves
9 second switching valves
11 range liquid accumulation units
12 dilution water accumulation units
13,14 standard sample accumulation unit
21~26 reagent accumulation units
31 cylinders
32 plungers
41 light sources
42 temperature sensors
51 light sources
52 detectors
53 temperature sensors
100 control units
101 analysis and Control portions
102 flow into state determination processing unit
103 abnormal notifier processes portions
200 storage units
300 display units.
Claims (3)
1. a kind of Water Test Kits comprising:
Inflow part, water sample, reagent or dilution water individually or as mixed liquor flow into the inflow part；
Temperature sensor, the temperature sensor detect the temperature of the liquid in the inflow part；And
Inflow state determination processing unit, inflow state determination processing unit is based on temperature sensor temperature detected
Variation, determines the inflow state of the liquid flowed in the inflow part,
Inflow state determination processing unit based within a certain period of time by the variation of temperature sensor temperature detected,
The inflow state of the dilution water flowed in the inflow part is determined, the certain time is individually to flow into the stream
On the basis of the inlet time for entering the dilution water in portion.
2. Water Test Kits as described in claim 1, which is characterized in that
After the inflow part is the reactor for reacting the ingredient in water sample or is the reaction that is supplied in the reactor
The measurement container of water sample.
3. Water Test Kits as claimed in claim 1 or 2, which is characterized in that
Also with the abnormal notifier processes portion of the judgement result notice exception based on inflow state determination processing unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-209969 | 2014-10-14 | ||
| JP2014209969A JP6394263B2 (en) | 2014-10-14 | 2014-10-14 | Water quality analyzer |
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| Publication Number | Publication Date |
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| CN105738287A CN105738287A (en) | 2016-07-06 |
| CN105738287B true CN105738287B (en) | 2019-03-29 |
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| CN201410769262.4A Active CN105738287B (en) | 2014-10-14 | 2014-12-12 | Water Test Kits |
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| JP (1) | JP6394263B2 (en) |
| CN (1) | CN105738287B (en) |
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| JP6965502B2 (en) * | 2016-08-30 | 2021-11-10 | 株式会社島津製作所 | Water quality analyzer |
| JP7163973B2 (en) * | 2018-12-21 | 2022-11-01 | 株式会社島津製作所 | Water quality analyzer |
| US20220065839A1 (en) * | 2019-01-11 | 2022-03-03 | Shimadzu Corporation | Water quality analyzer |
| WO2020152896A1 (en) * | 2019-01-21 | 2020-07-30 | 株式会社島津製作所 | Water quality analyzer and water quality analysis method |
| US10627384B1 (en) | 2019-03-07 | 2020-04-21 | Shimadzu Corporation | Water quality analyzer |
| US20220276278A1 (en) * | 2019-08-05 | 2022-09-01 | Hitachi High-Tech Corporation | Liquid Dispensing Device |
| JP7310917B2 (en) * | 2019-11-18 | 2023-07-19 | 株式会社島津製作所 | Total organic carbon measuring method and total organic carbon measuring device |
| WO2021250944A1 (en) | 2020-06-12 | 2021-12-16 | 株式会社島津製作所 | Water quality analyzer and water quality analysis method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH02135865U (en) * | 1989-03-23 | 1990-11-13 | ||
| JP2581833B2 (en) * | 1989-09-11 | 1997-02-12 | 株式会社日立製作所 | Plant operation status monitoring system |
| JP3237400B2 (en) * | 1994-05-16 | 2001-12-10 | 株式会社島津製作所 | Analyzer for nitrogen compounds and phosphorus compounds in water |
| JP2000266677A (en) * | 1999-01-14 | 2000-09-29 | Shimadzu Corp | Analyzer for nitrogen compound, phosphorus compound and organic contaminant |
| JP2001141734A (en) * | 1999-11-10 | 2001-05-25 | Olympus Optical Co Ltd | Analytic device |
| JP2004257916A (en) * | 2003-02-27 | 2004-09-16 | Shimadzu Corp | Method and instrument for measuring total phosphorus |
| US7402424B2 (en) * | 2006-02-01 | 2008-07-22 | Schlumberger Technology Corporation | Spectroscopic pH measurement at high-temperature and/or high-pressure |
| JP2009080035A (en) * | 2007-09-26 | 2009-04-16 | Olympus Corp | Analyzer |
| JP2010066108A (en) * | 2008-09-10 | 2010-03-25 | Olympus Corp | Automatic analyzer and drive control method for automatic analyzer |
| JP2013185884A (en) * | 2012-03-07 | 2013-09-19 | Shimadzu Corp | Water quality analyzer |
| CN203178254U (en) * | 2013-03-28 | 2013-09-04 | 东亚Dkk株式会社 | Hazardous substance detection device |
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| Publication number | Publication date |
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| JP2016080441A (en) | 2016-05-16 |
| JP6394263B2 (en) | 2018-09-26 |
| CN105738287A (en) | 2016-07-06 |
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