CN109001126A - A kind of Analysis of Urea instrument and its analysis method - Google Patents
A kind of Analysis of Urea instrument and its analysis method Download PDFInfo
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- CN109001126A CN109001126A CN201810441469.7A CN201810441469A CN109001126A CN 109001126 A CN109001126 A CN 109001126A CN 201810441469 A CN201810441469 A CN 201810441469A CN 109001126 A CN109001126 A CN 109001126A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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Abstract
The present invention proposes a kind of Analysis of Urea instrument, including controller and the first sample introduction pipeline, second sample introduction pipeline, third sample introduction pipeline and the 4th air inlet pipeline, water bath device, cooling cup, detection piece and waste liquid barrel, first sample introduction pipeline, second sample introduction pipeline, third sample feeding pipe road is correspondingly arranged on the first sampling pump, second sampling pump and third sampling pump, air pump is provided on 4th air inlet pipeline, the end of first sample introduction pipeline is connected with sample introduction arm, reaction vessel is provided in water bath device, first sample introduction pipeline is connect with reaction vessel and waste liquid barrel respectively by a multiple-way valve, reaction vessel is connected to cooling cup, cooling cup is connect with detection piece, cooling cup is connect with waste liquid barrel, controller and the first sampling pump, second sampling pump, third sampling pump, multiple-way valve and sample introduction arm communication connection.Solve the problems, such as that needing manually to test and analyze time-consuming and laborious and sample detection amount existing for existing urea analysis is easy to cause greatly experimental error big through the invention.
Description
Technical field
The present invention relates to a kind of Analysis of Urea instrument and use the Analysis of Urea method of the Analysis of Urea instrument.
Background technique
There are two classes for the instrument of urea content project automatic detection analysis in water on the market at present, one kind is small-sized, fast
Fast detector, the instrument is easy to carry can be with being used for quickly detecting to sampling scene, but this kind of instrument is not according to national standard side
Method is detected, and is not reached requirement in the lab using data precision；Detected using national standard method, need boiling water bath,
Cold bath, manual time-keeping, manual liquid feeding, artificial colorimetric, it is not only time-consuming and laborious, and also when sample size is big, easily generates error, leads
Cause experimental error big.
Summary of the invention
The present invention provides a kind of Analysis of Urea instrument, solves to need manually existing for Analysis of Urea instrument in the prior art
Test and analyze the problem that time-consuming and laborious and sample detection amount is easy to cause greatly experimental error big.
To achieve the purpose that solve above-mentioned technical problem, Analysis of Urea instrument proposed by the invention uses following technical scheme
It is achieved:
A kind of Analysis of Urea instrument, including controller and the intake line set gradually along sample feed liquor direction, water bath device, cooling
Cup, detection piece and waste liquid barrel, the intake line include the first sample introduction pipeline and successively cross with the first sample introduction pipeline second
Sample introduction pipeline, third sample introduction pipeline and the 4th air inlet pipeline, the first sample introduction pipeline, the second sample introduction pipeline, third sample feeding pipe
Road is correspondingly arranged on the first sampling pump, the second sampling pump and third sampling pump, is provided with air pump on the 4th air inlet pipeline,
The end of the first sample introduction pipeline be connected with can automatic sampling sample introduction arm, be provided in the water bath device reaction hold
Device, the first sample introduction pipeline is connect with the reaction vessel and waste liquid barrel respectively by a multiple-way valve, on the reaction vessel
Be provided with the valve of openable closure, the reaction vessel is connected to the cooling cup, the cooling cup by connecting line with
Detection piece connection, the cooling cup are connect with waste liquid barrel, the controller and first sampling pump, the second sampling pump, third
Sampling pump, multiple-way valve and sample introduction arm communication connection.
A kind of Analysis of Urea method of the Analysis of Urea instrument based on the above-mentioned technical proposal, includes the following steps:
(1) detection prepares: controller sends signals to water bath device, and water bath device starts heating water bath, is separately turned on the second sample introduction
It pumps and is full of in the leading portion not crossed with the first sample introduction pipeline with third sampling pump, the second sample introduction pipeline of guarantee, third sample introduction pipeline
Corresponding reagent, adjusts multiple-way valve, so that the first sample introduction pipeline is switched to the pipeline connecting with waste liquid barrel, starts the first sampling pump,
Pure water is extracted by sample introduction arm, carries out the cleaning of the first sample introduction pipeline, after pipeline-cleaning is clean, sample introduction arm is risen, the first sample introduction
Arm is restarted, and extracts air the first sample introduction pipeline evacuation, meanwhile, detection piece zeroing processing.
(2) vacancy sample introduction: the valve on reaction vessel maintains a normally open, and first passes through the second sample introduction pipeline into 1mL diacetyl one
Oxime, third sample introduction pipeline is into 2mL antipyrine, then by the sample introduction arm of the first sample introduction pipeline into 10mL sample, the first sample introduction
Pump startup extracts air in the mix reagent indentation reaction flask in the first sample introduction pipeline, multiple-way valve is adjusted, so that the first sample introduction
Pipeline is switched to the pipeline connecting with waste liquid barrel, starts the first sampling pump, extracts clear water detergent line, after pipeline-cleaning, the
One sampling pump is restarted, and extracts air the first sample introduction pipeline evacuation, multiple-way valve is rotated, by sample successively into complete.
(3) detection: starting to detect after 50 minutes, and the sample for completing heating corresponds to valve closing, and multiple-way valve goes to corresponding valve
Solution is pressed into cooling cup by reaction vessel by position, air pump air inlet, cooling, and the valve of reaction vessel is opened while cooling,
By the way that, into pure water, booster air pump is bubbled stirring and washing reaction vessel in the first sample feeding pipe road direction reaction vessel；After cooling, take out
Volumetric soiutions are taken, are detected to detection piece, then to cooling cup waste discharge；The valve of reaction vessel is closed, air pump is opened, cleaning is anti-
It answers the pure water of container to be discharged into cooling cup, cleans waste discharge；Reaction vessel, again into pure water, is discharged to cooling cup by the first sampling pump,
Cleaning second time；After the completion of reaction vessel cleaning, repeats step 2 and handle next sample.
The invention also includes following additional technical features:
Further, the reaction vessel is provided with multiple, is connected to by the second multiple-way valve with the cooling cup.
Further, the water bath device includes water bath, is provided with one under water bath in the water bath
The partition that is sealed of heating zone of layer is connected with water feed apparatus, water plug and the water that can make heating zone on the heating zone
The circulator of circulation is provided with jack on the partition, and the reaction vessel inserts in the jack, in the reaction
It is provided with gasket seal at container and jack cooperation position, heating device, water temperature detecting element are provided in the heating zone
With level sensing element, the heating device, water temperature detecting element, level sensing element are connect with the controller communication.
It further, further include having condensation, the condensation includes cooling-water machine and condensation reflux unit, described cold
Condensing circuit, the condensation reflux unit and institute have been in turn connected to form between water dispenser, condensation reflux unit and cooling cup
The heating zone connection for stating water bath is formed with opposing steam flow circuit.
It further, further include having the cleaning system that can be used for being cleaned to sample introduction arm, the cleaning system includes clear
Container, cleaning pump and pure water are washed for water drum, the cleaning pump is connected to the cleaning container, and the cleaning container includes from extroversion
The cleaning outer cylinder and cleaning inner cylinder inside set gradually, cleaning inner cylinder top has opening, cleans outer cylinder top closure, described clear
It washes between outer cylinder and cleaning inner cylinder and is formed with waste water accommodating cavity, the top end face of the waste water accommodating cavity is higher than the cleaning inner cylinder
Top end face is provided with waste discharge mouth in the bottom end of the waste water accommodating cavity, and cleaning inner cylinder bottom end is provided with water inlet.
Further, the waste discharge pipeline is the first waste discharge pipeline being connected between the cooling cup and waste liquid barrel,
It is provided with the first waste discharge pump on the first waste discharge pipeline, the second waste discharge is provided between the waste liquid barrel and waste water accommodating cavity
Pipeline is provided with the second waste discharge pump on the second waste discharge pipeline, is provided with third between the detection piece and waste liquid barrel
Waste discharge pipeline.
Further, the sample introduction arm includes lifting actuator, rotary components, sampling probe, bracket and support base, described
The bottom end of bracket is provided with the lifting actuator, is provided with a cunning that can be slided along support height direction on the bracket
Block, the lifting actuator are connect with a screw-drive mechanism, and the screw-drive mechanism is fixedly connected with the sliding block, described
Support base is fixedly connected with the sliding block, and the rotary components setting is fixedly connected on the support base with the sampling probe,
The rotary components include rotary drive, live spindle and probe tube, and the rotary drive is fixed on the support base
And pass through the support base and be fixedly connected with the live spindle, the live spindle is connect with the probe tube, the sampling
Pipe is connect with the sampling probe.
Further, the circulator includes circulating pump and the water inlet pipe connecting with the circulating pump both ends and water outlet
Pipe, the corresponding water inlet of water inlet pipe and the corresponding water outlet of the outlet pipe are arranged in diagonal line in the layer heating zone
On.
There are following advantages and good effect by the present invention:
The present invention proposes a kind of Analysis of Urea instrument, including controller and the intake line, the water that set gradually along sample feed liquor direction
Bath apparatus, cooling cup, detection piece and waste liquid barrel, the intake line include the first sample introduction pipeline and successively with the first sample introduction pipeline
The second sample introduction pipeline, third sample introduction pipeline and the 4th air inlet pipeline to cross, the first sample introduction pipeline, the second sample introduction pipeline,
Third sample feeding pipe road is correspondingly arranged on the first sampling pump, the second sampling pump and third sampling pump, on the 4th air inlet pipeline
Be provided with air pump, the end of the first sample introduction pipeline be connected with can automatic sampling sample introduction arm, set in the water bath device
It is equipped with reaction vessel, the first sample introduction pipeline is connect with the reaction vessel and waste liquid barrel respectively by a multiple-way valve, described
The valve of openable closure is provided on reaction vessel, the reaction vessel is connected to the cooling cup, and the cooling cup passes through
Connecting line is connect with detection piece, and the cooling cup is connect with waste liquid barrel, the controller and first sampling pump, second into
Sample pump, third sampling pump, multiple-way valve and sample introduction arm communication connection.Analysis of Urea instrument through the invention, can pass through when in use
First sampling pump, the second sampling pump, third sampling pump extract corresponding reagent from corresponding reagent bottle respectively, and the reagent of extraction is led to
It crosses pipeline and is input in reaction vessel and reacted, after the reaction was completed, gas can be opened by closing reaction vessel upper valve
Reaction solution, is pressed into cooling cup by pressure and is cooled down by pump, it is cooling after the completion of can automatically into detection piece into
Row detection comparative analysis, whole process control all parts by controller and accurately run, without manually participating in, realize
Urea is automatically analyzed, time-consuming and laborious problem caused by effectively avoiding because of artificial participate in, and big in laboratory sample amount
When, processing can be synchronized by the way that multichannel is arranged, improve the efficiency and accuracy of detection and analysis.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Analysis of Urea instrument of the present invention；
Fig. 2 is the structural schematic diagram of the sample introduction arm of Analysis of Urea instrument of the present invention；
Fig. 3 is the structural schematic diagram of the cleaning container of Analysis of Urea instrument of the present invention.
Specific embodiment
The technical scheme of the present invention will be explained in further detail with reference to the accompanying drawings and detailed description, the present invention
The embodiment for proposing a kind of Analysis of Urea instrument referring to Fig.1 shown in-Fig. 3, including controller and is successively set along sample feed liquor direction
Intake line 100, water bath device 200, cooling cup 300, detection piece 400 and the waste liquid barrel 500 set；The intake line 100 wraps
The second sample introduction pipeline 120, the third sample introduction pipeline 130 for including the first sample introduction pipeline 110 and successively crossing with the first sample introduction pipeline 110
With the 4th air inlet pipeline 140, successively handed over the first sample introduction pipeline 110 using the second sample introduction pipeline 120, third sample introduction pipeline 130
Converge the mode of setting, it can be ensured that reagent in the second sample introduction pipeline 120 and third sample introduction pipeline 130 is finally and the first sample introduction pipeline
Reagent mixing in 110, and the reagent in the first sample introduction pipeline 110 when entering can by the second sample introduction pipeline 120 and third into
Reagent in sample pipeline 130 is pushed to together inside reaction vessel 600, it is ensured that all reagents enter inside reaction vessel 600
It is reacted, while the 4th air inlet pipeline 140 is set as finally crossing with the first sample introduction pipeline 110, it can be ensured that in the 4th air inlet
The reagent in reaction vessel 600 can be all pressed into cooling cup 300 when 140 air inlet of pipeline.
The first sample introduction pipeline 110, the second sample introduction pipeline 120, be correspondingly arranged on third sample introduction pipeline 130 first into
Sample pumps the 111, second sampling pump 121 and third sampling pump 131, is provided with air pump 141 on the 4th air inlet pipeline 140, passes through
For extracting reagent sample, air pump 141 can be used for for first sampling pump 111, the second sampling pump 121 and third sampling pump 131
The pipeline that four air inlet pipelines 140 are connected to it is inflated, for realizing the emptying of pipeline；The end of the first sample introduction pipeline 110
Be connected with can automatic sampling sample introduction arm 700, sample introduction arm 700 can automatic lifting and rotation, realize extraction to sample, preferably
, it is additionally provided with a sample disk in the present embodiment and is stuck on the motor of its rotation of driving, its rotation is driven by motor, in sample
Multiple sample positions for placing sample are provided on disk, sample introduction arm 700 can take from sample position by rotating or moving up and down
Sample, is provided with the reaction vessel 600 in the water bath device 200, reaction vessel 600 can be provided with according to demand it is multiple,
Valve 610 is provided on the reaction vessel 600, the valve 610 on reaction vessel 600 is openable or closes, for realizing right
Reaction vessel 600 closed is opened, the first sample introduction pipeline 110 by a multiple-way valve 800 respectively with reaction vessel 600,
Waste liquid barrel 500 is connected to, and multiple-way valve 800 can be used for converting turn realized between the first sample introduction pipeline 110 and each reaction vessel 600
Connection is changed, being switched to different valve positions by multiple-way valve 800 can be achieved the first sample introduction pipeline 110 and different reaction vessels 600
Connection, it is ensured that in each reaction vessel 600 can successively sample introduction, meanwhile, the wherein also corresponding and waste liquid barrel all the way of multiple-way valve 800
500 connections can be used for realizing that waste discharge uses when the first sample introduction pipeline 110 carries out water inlet cleaning, the cleaning of the first sample introduction pipeline 110
Waste liquid can be drained into inside waste liquid barrel 500 after complete.
The reaction vessel 600 is connected to the cooling cup 300, and the cooling cup 300 passes through connecting line and detection piece
400 connections are provided with sampling pump on connecting line, for from extracting a certain amount of solution in cooling cup 300 to from detection piece 400
It is detected, it is preferred that the detection piece 400 in the present embodiment is visible light light-splitting range meter, is internally provided with flow cell, can
By rinsing the solution in cooling cup, flow cell is static to carry out comparing colour contrast after a certain period of time；
The controller and first sampling pump 111, the second sampling pump 121, third sampling pump 131 and sample introduction arm 700 communicate
Connection.It is dynamic that the first sampling pump 111, the second sampling pump 121 and third sampling pump 131 are controlled by the capable of emitting control signal of controller
Make, carries out the extraction of corresponding reagent, while the amount extracted to it is accurately recorded.
Further, the reaction vessel 600 is connected to by the second multiple-way valve with the cooling cup 300, reaction vessel 600
It is arranged multiple, the conversion of each reaction vessel 600 is realized by the second multiple-way valve, is switched to different valve positions in the second multiple-way valve
When can realize for the reagent in differential responses container 600 to imported into cooling cup 300 and carry out diagnosis refrigeration.
Further, the water bath device 200 include water bath 210, be provided in the water bath 210 one for pair
The partition 220 that the heating zone 211 of 210 lower layer of water bath is sealed is connected with water feed apparatus on the heating zone 211, draws water
The circulator of device and the water circulation that can make heating zone 211, is provided with jack on partition 220, and reaction vessel 600 is inserted
In jack, it is provided with gasket seal at reaction vessel 600 and jack cooperation position, is arranged in the heating zone 211
There are heating device, water temperature detecting element and level sensing element, the heating device, water temperature detecting element, level sensing element
It is connect with the controller communication.Heating device in the present embodiment can be that heating rod, water temperature detecting element are that temperature passes
Sensor, level sensing element are liquid level sensor.
Water bath 210 is divided into upper and lower two by setting one partition, 220 structure by the water bath device 200 in the present embodiment
The heating zone 211 of layer, lower layer is sealed by partition 220, so that the water vapour in heating zone 211 is sealed in water bath
Inside 210, the leakage problem of vapor is effectively avoided, has saved water resource, while to ensure 200 pairs of water bath device reactions
A circulator is arranged in the uniformity of 600 interior reagent of container heating, and circulator is a circulating pump, is made by circulating pump
The water flow of the heating zone 211 of internal water bath 210 is constantly in the state constantly circulated, may make water bath 210
Water in heating zone 211 is consistent in each section temperature；Meanwhile the water bath device 200 in the present embodiment is additionally provided with water feed apparatus
And water plug, can water bath 210 be drawn water or be discharged water automatically, realize the function of automatic water supplement and the function of automatic draining
Energy.
It can be used for real-time detection water bath internal temperature by water temperature detecting element, pass to controller and controlled,
When moisturizing, it can also can detect the liquid level in water bath 210 by level sensing element, pass to controller.
Preferably, circulator described in this example includes circulating pump and the water inlet pipe that connect with the circulating pump both ends
And outlet pipe, the corresponding water inlet of water inlet pipe and the corresponding water outlet of the outlet pipe are arranged in diagonal line in heating zone
On 211.It can ensure that water-bath by the way that inlet and outlet are arranged on the heating zone 211 of water bath 210 in diagonal way
Water can sufficient circulative convection in the heating zone 211 of case 210, it is ensured that the consistency of the water temperature of heating zone 211.
Further, the cooling cup 300 in the present embodiment includes cooling inner cylinder and the cooling that is set on cooling inner cylinder
Outer cylinder is formed with condensation cavity between cooling outer cylinder and cooling inner cylinder.
To realize the condensation to cooling cup 300, condensation 820, the condensation 820 are additionally provided in the present embodiment
Including cooling-water machine 821 and condensation reflux unit 822, between the cooling-water machine 821, condensation reflux unit 822 and cooling cup 300 according to
Secondary connection is formed with condensing circuit, and the cold water come out from cooling-water machine 821 can enter condensation reflux unit 822 by pipeline
It is interior, cooling outer cylinder is entered by condensation reflux unit 822, the reagent in cooling inner cylinder is cooled down, cooling outer cylinder
Cold water connected by pipeline and cooling-water machine 821, and enter in cooling-water machine 821, the condensation cycle for realizing an entirety is returned
Road, the condensation reflux unit 822 are connected to the heating zone of the water bath 210 and are formed with opposing steam flow circuit.It is condensed back
It is connected between device 822 and the heating zone 211 of water bath 210, the water vapour being heated in heating zone 211 can pass through condensing reflux
It is flowed back into inside the heating zone 211 of water bath 210 after device 822 is cooling, effectively avoids the wave of the steam in water bath 210
Take.
To realize the automatic cleaning to sample introduction arm 700, it is additionally provided in the present embodiment for being carried out automatically to sample introduction arm 700
The cleaning system 900 of cleaning, the cleaning system 900 in the present embodiment cannot be only used for cleaning sample introduction arm 700, but also
Pure water can be provided, it is preferred that the cleaning system 900 includes cleaning container 910, cleaning pump 920 and pure water for water drum 930,
Cleaning pump 920 is connected to cleaning container 910, and cleaning container 910 includes the cleaning outer cylinder 911 set gradually from outside to inside and cleaning
Inner cylinder 912, cleaning 912 top of inner cylinder have opening, clean 911 top closure of outer cylinder, in cleaning outer cylinder 911 and cleaning inner cylinder
Waste water accommodating cavity 913 is formed between 912, the top end face of the waste water accommodating cavity 913 is higher than 912 top of cleaning inner cylinder
End face is provided with waste discharge mouth 914 in the bottom end of the waste water accommodating cavity 913, and cleaning 912 bottom end of inner cylinder is provided with water inlet
915.The second waste discharge pipeline 940 is provided between the waste liquid barrel 500 and waste water accommodating cavity 913, in second waste pipe
The second waste discharge pump 941 is provided on road 940, cleaning pump 920 passes through water inlet 915 for the pure water extracted in water drum 930 from pure water
It enters in the cleaning inner cylinder 912 of cleaning container 910, cleans in inner cylinder 912 after water is full and overflow in waste water accommodating cavity 913,
Waste water in waste water accommodating cavity 913 is retracted in waste liquid barrel 500 by the second waste discharge pipeline 940 from waste discharge mouth by waste water.
Constantly extracted when cleaning in the present embodiment by cleaning pump 920 pure water for the pure water in water drum 930 realize into
The cleaning of sample arm 700；Meanwhile when not needing cleaning sample introduction arm 700, pure water can be stored with inside cleaning container 910,
It can be used for providing pure water use.
The first waste discharge pipeline is formed between the cooling cup 300 and waste liquid barrel 500, on the first waste discharge pipeline
It is provided with the first waste discharge pump, third waste discharge pipeline is provided between the detection piece 400 and waste liquid barrel 500, detection piece 400 is examined
Waste liquid after the completion of survey is drained into waste liquid barrel 500 by third waste discharge pipeline.
It can be rotated automatically for realization sample introduction arm 700, go up and down and realize automatic sampling, the sample introduction arm 700 in the present embodiment
Including lifting actuator 710, rotary components 720, sampling probe 730, bracket 740 and support base 750, at the bottom of the bracket 740
End is provided with the lifting actuator 710, and a sliding block that can be slided along support height direction is provided on the bracket 740
760, the lifting actuator 710 is connect with a screw-drive mechanism 770, the screw-drive mechanism 770 and the sliding block 760
It is fixedly connected, the support base 750 is fixedly connected with the sliding block 760, and the rotary components 720 are arranged in the support base
It is fixedly connected on 750 with the sampling probe 730, the rotary components 720 include rotary drive 721, live spindle 722 and take
Sample pipe 723, the rotary drive 721 are fixed on the support base 750 and pass through the support base 750 and lead with the rotation
Axis 722 is fixedly connected, and the live spindle 722 is connect with the probe tube 723, the probe tube 723 and the sampling probe 730
Connection.Probe tube 723 is connect by pipeline with the first sampling pump 111, can be dynamic by lifting actuator 710 when being sampled
Make that screw-drive mechanism 770 is driven to do linear motion up and down, and then the sliding with movable slider 760 on bracket 740 slides up and down,
It drives support base 750 to move up and down when sliding, and then drives the rotary components 720 and sampling probe 730 being arranged on support base 750
It moves up and down, operation is sampled to cleaning container 910 or sample area by sampling probe 730, when needing to rotate, rotation can be passed through
Turning actuator 721 drives live spindle 722 to rotate, and then drives probe tube 723, the sampling probe 730 connecting with live spindle 722
Rotation, is sampled.
For the adjustable height or rotation angle for realizing accurate detection sampling probe 730, it can correspond to and be provided on bracket 740
Optoelectronic induction sensor is gone up and down, rotary photoelectric inductive pick-up is provided on support base 750.
A kind of Analysis of Urea method of Analysis of Urea instrument based on the above-mentioned technical proposal, packet are also proposed in the present embodiment
Include following steps:
(1) detection prepares: controller sends signals to water bath device 200, and water bath device 200 starts heating water bath, is separately turned on the
Two sampling pumps 121 and third sampling pump 131, guarantee the second sample introduction pipeline 120, third sample introduction pipeline 130 not with the first sample feeding pipe
Guarantees BG in attached drawing 1 full of corresponding reagent in leading portion that road 110 crosses and CF sections are full of corresponding solution, adjusting multiple-way valve
800, so that the first sample introduction pipeline 110 is switched to the pipeline connecting with waste liquid barrel 500, starts the first sampling pump 111, pass through sample introduction
Arm 700 extracts pure water from cleaning container 910, carries out the cleaning of the first sample introduction pipeline 110, after pipeline-cleaning is clean, sample introduction arm
700 rise, and the first sampling pump 111 is restarted, and extract air the AE section in the first sample introduction pipeline 110 emptying i.e. attached drawing 1, guarantee
BG, CF sections are full of corresponding solution.Meanwhile 400 zeroing of detection piece is handled.
(2) vacancy sample introduction: the valve 610 on reaction vessel 600 maintains a normally open, first pass through 120 road of the second sample feeding pipe into
Then 1mL diacetyl monoxime, third sample introduction pipeline 130 pass through the sample introduction arm 700 of the first sample introduction pipeline 110 into 2mL antipyrine
Into 10mL sample, the starting of the first sampling pump 111 extracts air and the mix reagent indentation reaction in the first sample introduction pipeline 110 is held
In device 600, multiple-way valve 800 is adjusted, so that the first sample introduction pipeline 110 is switched to the pipeline connecting with waste liquid barrel 500, starting first
Sampling pump 111 is moved to cleaning container 910 by sample introduction arm 700 and extracts clear water detergent line, after pipeline-cleaning, first into
Sample pump 111 is restarted, and extracting air the first sample introduction pipeline 110 is AE sections of emptyings, rotates multiple-way valve 800, sample room was every 5 minutes
Successively into complete.
(3) detection: starting to detect after 50 minutes, and the corresponding valve 610 of sample for completing heating is closed, multiple-way valve 800
Corresponding valve position is gone to, solution is pressed into cooling cup 300 by reaction vessel 600, cools down 2min by 141 air inlet of air pump, cooling
The valve 610 of simultaneous reactions container 600 is opened, and is opened into reaction vessel 600 into pure water 30ml by the first sample introduction pipeline 110
Take offence pump 141 be bubbled 600 times of stirring and washing reaction vessel be 30 seconds；After cooling, by sampling, pumping takes 15ml molten
Liquid rinses flow cell and stands 20 seconds and detect, then to 300 waste discharge of cooling cup；The valve 610 of reaction vessel 600 is closed, is opened
The pure water of wash reaction vessels 600 is discharged into cooling cup 300, cleans waste discharge by air pump 141；Reaction vessel 600 passes through the first sample introduction
Pump 111 into 30ml pure water, is discharged to cooling cup 300 again, cleans second time；After the completion of reaction vessel 600 cleans, step 2 is repeated
Handle next sample.
Uremic analyzer in through this embodiment can also realize that configured mark is put in sample disc standard liquid position automatically with mark
Quasi- liquid, same 5 minute time interval, standard liquid measure X=0 ~ 10ml that the boiling water position entrance of each water bath device 200 is set, two
Pure water (25-X) ml of acetyl monoxime 1mL, antipyrine 2mL and corresponding amount realize dilution and standard configuration to solution, for
The detection of configured solution can refer to step 3 and be detected.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of Analysis of Urea instrument, which is characterized in that including controller and the intake line set gradually along sample feed liquor direction,
Water bath device, cooling cup, detection piece and waste liquid barrel, the intake line include the first sample introduction pipeline and successively with the first sample feeding pipe
The second sample introduction pipeline, third sample introduction pipeline and the 4th air inlet pipeline that road crosses, the first sample introduction pipeline, the second sample feeding pipe
Road, third sample feeding pipe road are correspondingly arranged on the first sampling pump, the second sampling pump and third sampling pump, the 4th air inlet pipeline
On be provided with air pump, the end of the first sample introduction pipeline be connected with can automatic sampling sample introduction arm, in the water bath device
It is provided with reaction vessel, the first sample introduction pipeline is connect with the reaction vessel and waste liquid barrel respectively by a multiple-way valve, institute
The valve that openable closure is provided on reaction vessel is stated, the reaction vessel is connected to the cooling cup, and the cooling cup is logical
It crosses connecting line to connect with detection piece, the cooling cup is connect with waste liquid barrel, the controller and first sampling pump, second
Sampling pump, third sampling pump, multiple-way valve and sample introduction arm communication connection.
2. Analysis of Urea instrument according to claim 1, which is characterized in that the reaction vessel is provided with multiple, passes through
Second multiple-way valve is connected to the cooling cup.
3. Analysis of Urea instrument according to claim 1, which is characterized in that the water bath device includes water bath, described
It is provided with a partition for being sealed to the heating zone of water bath lower layer in water bath, is connected on the heating zone into water
Device, water plug and can make heating zone water circulation circulator, be provided with jack, the reaction on the partition
Container inserts in the jack, gasket seal is provided at the reaction vessel and jack cooperation position, in the heating zone
Inside it is provided with heating device, water temperature detecting element and level sensing element, the heating device, water temperature detecting element, liquid level inspection
Element is surveyed to connect with the controller communication.
4. Analysis of Urea instrument according to claim 3, which is characterized in that it further include having condensation, the condensation
Including cooling-water machine and condensation reflux unit, it has been in turn connected to form between the cooling-water machine, condensation reflux unit and cooling cup cold
Solidifying circulation loop, the condensation reflux unit are connected to the heating zone of the water bath and are formed with opposing steam flow circuit.
5. Analysis of Urea instrument according to claim 1, which is characterized in that further include having to can be used for cleaning sample introduction arm
Cleaning system, the cleaning system includes cleaning container, cleaning pump and pure water for water drum, the cleaning pump and cleaning appearance
Device connection, the cleaning container include the cleaning outer cylinder set gradually from outside to inside and cleaning inner cylinder, and cleaning inner cylinder top has
Opening cleans outer cylinder top closure, and waste water accommodating cavity is formed between the cleaning outer cylinder and cleaning inner cylinder, and the waste water holds
The top end face for setting chamber is higher than the cleaning inner cylinder top end face, and the bottom end of the waste water accommodating cavity is provided with waste discharge mouth,
Cleaning inner cylinder bottom end is provided with water inlet.
6. Analysis of Urea instrument according to claim 5, which is characterized in that be formed between the cooling cup and waste liquid barrel
First waste discharge pipeline is provided with the first waste discharge pump on the first waste discharge pipeline, the waste liquid barrel and waste water accommodating cavity it
Between be formed with the second waste discharge pipeline, be provided on the second waste discharge pipeline the second waste discharge pump, in the detection piece and waste liquid
Third waste discharge pipeline is formed between bucket.
7. Analysis of Urea instrument according to claim 1, which is characterized in that the sample introduction arm includes lifting actuator, rotation
Component, sampling probe, bracket and support base are provided with the lifting actuator in the bottom end of the bracket, set on the bracket
It is equipped with a sliding block that can be slided along support height direction, the lifting actuator is connect with a screw-drive mechanism, the spiral
Transmission mechanism is fixedly connected with the sliding block, and the support base is fixedly connected with the sliding block, and the rotary components are arranged in institute
It states and is fixedly connected on support base with the sampling probe, the rotary components include rotary drive, live spindle and probe tube, institute
Rotary drive is stated to be fixed on the support base and be fixedly connected across the support base with the live spindle, the rotation
Main shaft is connect with the probe tube, and the probe tube is connect with the sampling probe.
8. Analysis of Urea instrument according to claim 2, which is characterized in that the circulator include circulating pump and with institute
State the water inlet pipe and outlet pipe of the connection of circulating pump both ends, the corresponding water inlet of water inlet pipe and the corresponding water outlet of the outlet pipe
Mouth is arranged on the layer heating zone in diagonal line.
9. a kind of Analysis of Urea method based on Analysis of Urea instrument described in claim 1-8, which is characterized in that including walking as follows
It is rapid:
(1) detection prepares: controller sends signals to water bath device, and water bath device starts heating water bath, is separately turned on the second sample introduction
It pumps and is full of in the leading portion not crossed with the first sample introduction pipeline with third sampling pump, the second sample introduction pipeline of guarantee, third sample introduction pipeline
Corresponding reagent, adjusts multiple-way valve, so that the first sample introduction pipeline is switched to the pipeline connecting with waste liquid barrel, starts the first sampling pump,
Pure water is extracted by sample introduction arm, carries out the cleaning of the first sample introduction pipeline, after pipeline-cleaning is clean, sample introduction arm is risen, the first sample introduction
Arm is restarted, and extracts air the first sample introduction pipeline evacuation, meanwhile, detection piece zeroing processing；
(2) vacancy sample introduction: the valve on reaction vessel maintains a normally open, and first passes through the second sample introduction pipeline into 1mL diacetyl monoxime,
Third sample introduction pipeline is into 2mL antipyrine, and then by the sample introduction arm of the first sample introduction pipeline into 10mL sample, the first sampling pump is opened
It is dynamic, air is extracted in the mix reagent indentation reaction flask in the first sample introduction pipeline, multiple-way valve is adjusted, so that the first sample introduction pipeline
Be switched to the pipeline connecting with waste liquid barrel, start the first sampling pump, extract clear water detergent line, after pipeline-cleaning, first into
Sample pump is restarted, and extracts air the first sample introduction pipeline evacuation, multiple-way valve is rotated, by sample successively into complete；
(3) detection: starting to detect after 50 minutes, and the sample for completing heating corresponds to valve closing, and multiple-way valve goes to corresponding valve position,
Solution is pressed into cooling cup by reaction vessel by air pump air inlet, cooling, and the valve of reaction vessel is opened while cooling, is passed through
Into pure water in first sample feeding pipe road direction reaction vessel, booster air pump is bubbled stirring and washing reaction vessel；After cooling, it is fixed to extract
Solution is measured, is detected to detection piece, then to cooling cup waste discharge；The valve of reaction vessel is closed, air pump is opened, cleaning reaction is held
The pure water of device is discharged into cooling cup, cleans waste discharge；Reaction vessel, again into pure water, is discharged to cooling cup by the first sampling pump, cleans
Second time；After the completion of reaction vessel cleaning, repeats step 2 and handle next sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441469.7A CN109001126A (en) | 2018-05-10 | 2018-05-10 | A kind of Analysis of Urea instrument and its analysis method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441469.7A CN109001126A (en) | 2018-05-10 | 2018-05-10 | A kind of Analysis of Urea instrument and its analysis method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068650A (en) * | 2019-05-28 | 2019-07-30 | 河南吉普马斯环境科技有限公司 | A kind of multi-functional water-bath oxidimetric titration analysis workbench |
| CN112857897A (en) * | 2021-01-08 | 2021-05-28 | 四川禹清源环保科技有限公司 | Automatic step-by-step cyclic collection and monitoring system for water quality |
-
2018
- 2018-05-10 CN CN201810441469.7A patent/CN109001126A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068650A (en) * | 2019-05-28 | 2019-07-30 | 河南吉普马斯环境科技有限公司 | A kind of multi-functional water-bath oxidimetric titration analysis workbench |
| CN112857897A (en) * | 2021-01-08 | 2021-05-28 | 四川禹清源环保科技有限公司 | Automatic step-by-step cyclic collection and monitoring system for water quality |
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