CN109557247A - A kind of degree of hydrolysis measuring instrument and its measurement method - Google Patents
A kind of degree of hydrolysis measuring instrument and its measurement method Download PDFInfo
- Publication number
- CN109557247A CN109557247A CN201910048568.3A CN201910048568A CN109557247A CN 109557247 A CN109557247 A CN 109557247A CN 201910048568 A CN201910048568 A CN 201910048568A CN 109557247 A CN109557247 A CN 109557247A
- Authority
- CN
- China
- Prior art keywords
- motor
- lifting
- sensor
- degree
- titration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 43
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 43
- 238000000691 measurement method Methods 0.000 title claims abstract description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 88
- 238000002347 injection Methods 0.000 claims abstract description 71
- 239000007924 injection Substances 0.000 claims abstract description 71
- 238000004448 titration Methods 0.000 claims abstract description 69
- 238000003756 stirring Methods 0.000 claims abstract description 63
- 239000000243 solution Substances 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000011049 filling Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 44
- 239000007788 liquid Substances 0.000 claims description 26
- 238000005259 measurement Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000012153 distilled water Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 239000012482 calibration solution Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 7
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 6
- 239000012488 sample solution Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000005213 imbibition Methods 0.000 claims description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 238000011067 equilibration Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229940047670 sodium acrylate Drugs 0.000 claims description 3
- 239000012086 standard solution Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 238000004164 analytical calibration Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 229920002401 polyacrylamide Polymers 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 150000005838 radical anions Chemical class 0.000 description 1
- 238000013215 result calculation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
- G01N2001/386—Other diluting or mixing processes
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of degree of hydrolysis measuring instrument and its measurement methods, wherein degree of hydrolysis measuring instrument includes casing and operating space, operating space is placed with the beaker and built-in control unit for containing HPAM sample to be measured, operating space is respectively disposed with lifting agitating unit, injection crosspoint and detection unit, and lifting motor drives stirring motor along the output axial direction vertical lifting of lifting motor；Injector motor drives piston shank axially to aspirate along the output of injector motor, and three-way switch valve is connected to or connect with the container and beaker of the syringe of injection needle and the hydrochloric acid solution for filling known concentration respectively；PH sensor, lifting motor, stirring motor, injector motor and three-way switch valve are connect with control unit respectively.The present invention, automation, standardization level are high, can accurately judge pH value titration end-point, effectively avoid artificial gimmick difference or error in reading；The scope of application of product greatly improved in height liberalization in parameter setting.
Description
Technical field
The present invention relates to degree of hydrolysis pH values to measure field, and in particular to a kind of degree of hydrolysis measuring instrument of polyacrylamide and its
Measurement method.
Background technique
Polyacrylamide (PAM) is a kind of linear macromolecule polymer, can be divided into non-ionic, anion again by its structure
Type and cationic.Anionic is mostly the hydrolysis body (HPAM) of PAM.A large amount of amide is had on the main chain of polyacrylamide
Base, chemical activity is very high, can be modified the derivative for producing many polyacrylamides, polyacrylamide is as lubricant, suspension
Agent, clay stabilizer, oil displacement agent, fluid loss agent and thickener, in drilling well, acidification, pressure break, water blockoff, well cementation and secondary oil recovery, three
It is widely applied in secondary oil recovery, is a kind of particularly important oil field chemical.
HPAM can be ionized in aqueous solution, be generated as polypropylene acid radical anion, receive in aqueous solution hydrogen from
Son, row is at polyacrylic acid.The method that the degree of hydrolysis of measurement HPAM in the solution generallys use at present is dripped into HPAM aqueous solution
Add hydrochloric acid, and determine the color change of indicator by human eye, to determine titration end-point, then reads the volume of consumption hydrochloric acid, with
This calculates the degree of hydrolysis of HPAM to determine sample mass and solid content.
Since automation, standardization level are all lower, in above-mentioned degree of hydrolysis measurement method either precision, or measurement effect
All there is significant limitations in rate, and can not accurately judge pH value titration end-point in view of naked eyes, therefore is not avoided that artificial
The accuracy of degree of hydrolysis measurement greatly reduces in difference or error in reading；In addition this method titration end-point, rate of titration and
In the diversity choice setting of the parameters such as mixing speed, there is also very big drawbacks.
In conclusion need a kind of the degree of automation higher at present, it can quick, accurate and flexible measurement HPAM degree of hydrolysis
Method.
Summary of the invention
Lack using flexible in the market the technical problem to be solved by the present invention is to existing, accurately degree of hydrolysis is surveyed for measurement
The problem of measuring instrument.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that providing a kind of degree of hydrolysis measuring instrument, packet
The casing of an outside is included, is integrally recessed operating space below the front side wall of the casing, the operating space is placed with splendid attire
The beaker of HPAM sample to be measured, the front side wall top are built-in with display screen interconnected and control unit, the operating space
It is respectively disposed with lifting agitating unit, injection crosspoint and detection unit,
The lifting agitating unit successively includes stirring rod, lifting motor and stirring motor, the top of the stirring rod by
The operating space is connected to the stirring motor after passing through the casing, and the lifting motor is fixedly installed in the casing,
The lifting motor is connect by nut screw structure with the stirring motor, and drives the stirring motor along the lifting electricity
The output axial direction vertical lifting of machine；
The injection crosspoint successively includes three-way switch valve, injection needle and injector motor, the injector motor
It is individually fixed on the casing with injection needle, the injector motor passes through the piston of nut screw structure and the injection needle
Shank connection, and the piston shank is driven axially to aspirate along the output of the injector motor, on the three-way switch valve
Three interfaces are connected to the container and the beaker of the syringe of the injection needle and the hydrochloric acid solution for filling known concentration respectively
Or connection；
The detection unit includes one for detecting the PH sensor of HPAM sample to be measured in the beaker；
Described control unit includes multiple circuit boards interconnected, the PH sensor, lifting motor, stirring motor,
Injector motor and three-way switch valve are connect with described control unit respectively.
In the above scheme, the lifting agitating unit further includes lifting platform lead screw, lifting seat and stirring motor fixing seat,
The output shaft of the lifting platform lead screw and the lifting motor is coaxially pivotally connected and is arranged in the lifting seat, and the lifting seat passes through
Nut structure drives vertical lifting by the lifting motor, and the side of the lifting platform lead screw is fixed with a lifting platform in parallel and leads
Rail, one end of the lifting seat and the lifting platform guide rail card and and be slidably connected, the stirring motor is electric by the stirring
Machine fixing seat connect linkage with the lifting seat.
In the above scheme, the stirring rod is arranged vertically, and the output shaft of the stirring rod and the stirring motor passes through
Shaft coupling is coaxially pivotally connected, and the bottom of the stirring rod is fixed with agitating paddle, is integrally formed with two panels and axle center on the agitating paddle
The helical form stirring blade for the arrangement that is centrosymmetric, the agitating paddle are gone up and down above the beaker with the stirring rod.
In the above scheme, the injection crosspoint further include the vertical plate being integrally removably connected on the casing,
And syringe lead screw and injection needle boost motor, the injector motor and injection needle pass through respectively injector motor fixing seat and
Injection needle fixing seat is fixedly connected on inside and outside the vertical plate, and the three-way switch valve is fixedly connected on the injection needle
The vertical plate is ipsilateral, and the piston shank connect linkage, the vertical plate with the injection needle boost motor by shank fixing seat
On offer boost motor sliding rail, the injection needle boost motor is arranged in the boost motor sliding rail and slides along the boost motor sliding rail
The output shaft of connection, the syringe lead screw and the injector motor is coaxially pivotally connected and is equipped with syringe nut, the note
Emitter nut connect linkage with the injection needle boost motor by nut fixing seat, and the injection needle boost motor is by the injection
Device motor driven vertical lifting.
In the above scheme, the side of the syringe lead screw is fixed with a syringe guide rail, the injection needle in parallel
One end of boost motor and the syringe guide rail card and and be slidably connected, the bottom of the vertical plate is equipped with pedestal, the vertical plate
Upper inner is fixedly connected with the injector motor control panel for controlling the injector motor.
In the above scheme, the syringe of an interface in three interfaces of the three-way switch valve and the injection needle connects
Logical, another two is connected to a pipette and an outlet tube respectively, and the other end of the pipette is connected with sample introduction needle, described
The liquid level of the container of the hydrochloric acid solution of known concentration is filled described in sample introduction needle insertion hereinafter, the other end of the outlet tube is connected with
Needle is titrated, the titration needle fixed frame for placing the titration needle is fixedly connected on the casing, is opened on the titration needle fixed frame
Equipped with the through-hole for placing the titration needle, the titration needle is inserted on the liquid level of the beaker by the titration needle fixed frame
Side.
In the above scheme, the detection unit further includes the sensor fixed arm being fixedly connected on the casing, institute
It states and is removably connected with first sensor bracket and second sensor bracket on sensor fixed arm respectively, the first sensor
Bracket is against on the housing, and the second sensor rack arrangement is above the beaker, the first sensor bracket
The elastic clip of C-shaped is respectively equipped with the both ends of second sensor bracket, the PH sensor by being connected to the bullet vertically
It is connected on the sensor fixed arm in property clip.
In the above scheme, the power switch connecting with described control unit is respectively equipped on the casing, sensor connects
Mouth and power outlet, the top of the PH sensor are terminals, and the terminals and the sensor interface pass through electric wire and connect
It connects, described control unit further includes the backup power source being set in the casing.
The present invention additionally provides a kind of measurement method of above-mentioned degree of hydrolysis measuring instrument, comprising the following steps:
Preparation before measurement:
Step 1: getting out the hydrochloric acid of a certain amount of known concentration；
Step 2: getting out HPAM sample to be measured, it is known that its solid content, and with its quality of electronic balance weighing；
Step 3: the sample to be tested after weighing being put into beaker, a certain amount of distilled water is added, and stirred with stirring rod
Solution makes it completely dissolved；
Prepare measurement:
Step 4: being powered and open degree of hydrolysis measuring instrument；
Step 5: calibration PH sensor gets out the calibration solution that PH is respectively 4 and 6.86, the touch for clicking instrument is shown
Then calibration menu on screen is demarcated and is confirmed to PH sensor with the calibration solution that PH is 4 and 6.86 respectively；
Step 6: pipette one end of instrument being put into the hydrochloric acid solution of ready known concentration, the buret of instrument
It accesses in waste liquid bottle, the cleaning menu on point touching display screen, sets cleaning volume, wash number and cleaning speed, it is right
Liquid line in degree of hydrolysis measuring instrument is cleaned；
Start to measure:
Step 7: after having cleaned the pipeline of instrument, the beaker for filling HPAM sample solution to be measured being put into Instrumentation Operating Areas
In；
Step 8: the setting menu on point touching display screen inputs titration end-point parameter, pre-control point parameter, pre-control respectively
Put the equilibration time of rate of titration parameter, titration end-point speed parameter, instrument mixing speed and titration end-point；
Step 9: the HD parameter menu on point touching display screen joins concentration of hydrochloric acid parameter, HPAM sample quality to be measured
The known conditions such as several and solid content parameter are separately input to inside instrument；
Step 10: the automatic Titration menu on point touching display screen starts automatic Titration program, until hydrochloric acid solution drips
So that the pH value of solution is reached 4.01 into HPAM sample to be measured and stablize a period of time, and in titration end-point, record titration
The amount of hydrochloric acid is consumed, and calculates the degree of hydrolysis test result of HPAM as follows:
HD=71CV/ (1000mS-23CV) × 100%；
In the formula:
The degree of hydrolysis of HD-HPAM to be measured, %；
The concentration of the known hydrochloric acid solution of C-, mol/L；
Ml of the known hydrochloric acid solution of V-HPAM sample solution consumption to be measured, mL；
The quality of m-HPAM sample to be measured, g；
S-solid content, i.e., the degree of purity of HPAM sample to be measured；
The difference of 23-sodium acrylate and acrylamide chain link quality；
71-with the quality of 1.00mL hydrochloric acid standard solution [c (HCL)=1.00mol/L] comparable acrylamide chain link；
After measurement:
Step 11: the pipeline of instrument being cleaned as step 6 with distillation water liquid, the only imbibition of instrument
Pipe one terminates distilled water；
Step 12: then PH sensor wash with distilled water blots the distilled water in PH sensor with blotting paper, and by PH
Sensor is immersed in Klorvess Liquid.
In the above scheme, in step 8, endpoint parameter 4.01PH, pre-control point parameter are bigger than titration end-point parameter, stir
The mixing speed for mixing motor is 50-3000r/min, and the pump rate of liquid aspiration of injector motor is 0-300uL/s, the titration of instrument,
Pre-control velocity resolution is 0.01uL/s.
The present invention, automation, standardization level are high, can accurately judge pH value titration end-point, effectively avoid people
For gimmick difference or error in reading, degree of hydrolysis Numerical accuracy is greatly improved；In titration end-point, rate of titration and mixing speed
Etc. the diversity choices of parameters set upper height liberalization, the scope of application of product greatly improved.
Detailed description of the invention
Fig. 1 is contour structures stereoscopic schematic diagram of the invention；
Fig. 2 is the overlooking structure diagram of the unassembled beaker of Fig. 1；
Fig. 3 is that Fig. 2 disassembles the internal structure side-lower schematic top plan view after part enclosure；
Fig. 4 is the upper side elevational schematic view of lifting agitating unit and detection unit that Fig. 3 rotates behind certain visual angle；
Fig. 5 is the side-lower schematic top plan view that crosspoint is injected in Fig. 3；
Fig. 6 is the side-lower schematic top plan view for the injection crosspoint that Fig. 5 rotates behind certain visual angle.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings of the specification.
The invention discloses a kind of degree of hydrolysis measuring instrument and its measurement method, those skilled in the art can be used for reference in this paper
Hold, is suitably modified realization of process parameters.It is important to note that all similar substitutions and modifications are to those skilled in the art
For be it will be apparent that they are considered as being included in the present invention, and related personnel can obviously not depart from the present invention
Hold, content described herein be modified on the basis of spirit and scope or appropriate changes and combinations, carrys out this hair of implementation and application
Bright technology.
In invention, unless otherwise stated, Science and Technology noun used herein has those skilled in the art
The normally understood meaning of member institute.
As shown in Figures 1 to 6, a kind of degree of hydrolysis measuring instrument provided by the invention, the casing 1 including an outside, casing 1
Front side wall below be integrally recessed operating space, operating space is placed with the beaker 3 for containing HPAM sample to be measured, front side wall top
Be built-in with display screen 2 interconnected and control unit, operating space be respectively disposed with lifting agitating unit, injection crosspoint and
Detection unit, specific structure are as follows:
Lifting agitating unit successively includes stirring rod 13, lifting motor 14 and stirring motor 15, the top of stirring rod 13 by
Operating space is connected to stirring motor 15 after passing through casing 1 to which linkage driving rotates, and lifting motor 14 is fixedly installed on casing 1
Interior, lifting motor 14 is connect by nut screw structure with stirring motor 15, and drive control stirring motor 15 is along lifting motor
14 output axial direction vertical lifting, thus achieve the purpose that carry out uniform stirring to the solution of HPAM sample to be measured in beaker 3, it should
Since stirring motor 15 and stirring rod 13 are gone up and down together, moving up and down and dismantling for agitating paddle 13 can facilitate structure
3 solution of beaker being put into and taking out.
Above-mentioned lifting agitating unit more specifically structure be further include lifting platform lead screw 17, lifting seat 18 and stirring electricity
The output shaft of machine fixing seat 19, lifting platform lead screw 17 and lifting motor 14 is coaxially pivotally connected linkage, and lifting platform lead screw 17 is worn
In lifting seat 18, lifting seat 18 drives vertical lifting by lifting motor 14 by nut structure, thus lifting platform lead screw 17 and liter
It drops seat 18 and forms the nut screw structure that driving stirring motor 15 is gone up and down, the side of lifting platform lead screw 17 is fixed with one in parallel and rises
Drop platform guide rail 16, one end of lifting seat 18 and the card of lifting platform guide rail 16 and and be slidably connected, guide rail 16 can make lifting seat 18
Vertical sliding is more steady soft, prevents from vibrating the influence to measurement, stirring motor 15 is stirred by being installed on one of its bottom
It mixes motor fixing seat 19 and is fixedly connected with linkage with lifting seat 18, stirring rod 13 is arranged vertically, stirring rod 13 and stirring motor 15
Output shaft be coaxially pivotally connected by shaft coupling 10, this vertical mixing structure vertically moved can not only allow titrating solution dispersion equal
Even and fully reacting, while also allowing developer is evenly dispersed to keep electrode measurement more accurate, the bottom fixation of stirring rod 13 is set
Have agitating paddle 5, be integrally formed with two panels on agitating paddle 5 and axle center is centrosymmetric the helical form stirring blade of arrangement, agitating paddle 5 with
Stirring rod 13 is gone up and down above beaker 3, carries out sufficiently complete stirring to titrating solution.
Injection crosspoint of the invention successively includes three-way switch valve 21, injection needle 22 and injector motor 32, injection
Device motor 32 and injection needle 22 are fixedly installed in respectively on casing 1, and injector motor 32 passes through nut screw structure and injection needle
22 piston shank 23 connects, and then makes injector motor 32 that piston shank 23 can be driven axial along the output of injector motor 32
The function (i.e. pump configuration) of realizing suction, three interfaces on three-way switch valve 21 respectively with the syringe of injection needle 22, Yi Jisheng
There is the container of the hydrochloric acid solution of known concentration (since hydrochloric acid and container are common prior art product, to be not drawn into this in figure
Container) it is connected to or connects with beaker 3, in this way with the suction of piston shank 23, so that realization stores the sucking of hydrochloric acid and will
The purpose that the hydrochloric acid of storage titrates HPAM sample to be measured.
Injection needle 22 in the present invention is preferably the high-precision syringe pump in analysis instrument, and the syringe of injection needle 22 uses
Be 2.5ml air-tightness micro-sampling syringe.High-precision syringe pump ensure that the precision of the liquid inlet volume of titration with hydrochloric acid；It is adjustable
Second level sample introduction speed, which can guarantee, quickly so that sample is uniformly mixed the precision for guaranteeing titration by test sample.Three-way switch valve 21 makes
It is Japanese takasago diaphragm valve, has switching sensitive, pipeline liquid shakes small feature.
Further, above-mentioned injection crosspoint more specifically structure be further include integrally being removably connected to casing 1
On vertical plate 34 and syringe lead screw 30 and injection needle boost motor 25, wherein above-mentioned injector motor 32 and injection needle 22
The inside and outside of vertical plate 34 is fixedly connected on by an injector motor fixing seat 31 and an installation of injection needle fixing seat 20 respectively
Two sides, it is ipsilateral that three-way switch valve 21 with injection needle 22 is fixedly connected on vertical plate 34.Piston shank 23 passes through a shank fixing seat
24 connect simultaneously linkage from top to bottom with injection needle boost motor 25, offer boost motor sliding rail 26 on vertical plate 34, injection needle boost motor 25 is worn
It is slidably connected set on boost motor sliding rail 26 and along boost motor sliding rail 26, syringe lead screw 30 and the output shaft of injector motor 32 are same
Axis pivot joint, and syringe nut 28 is equipped on syringe lead screw 30, syringe nut 28 passes through nut fixing seat 29 and note
It penetrates needle boost motor 25 and connects linkage, so that syringe lead screw 30 and injection needle boost motor 25 (including syringe nut 28) are formed
The nut screw structure for driving piston shank 23 to go up and down, i.e. piston shank 23, injection needle boost motor 25, syringe nut 28 and spiral shell
Female fixing seat 29, under the driving of injector motor 32, together along 26 vertical lifting of sliding rail, thus with 23 downlink of piston shank
(or uplink), instrument realization are carried out above-mentioned hydrochloric acid in smooth, the stable syringe for being pumped into injection needle 22 automatically (or by injection needle
The hydrochloric acid that stores in 22 syringe instills beaker) process.
It is further preferred that the side of syringe lead screw 30 is also fixed with a syringe guide rail 35 in parallel, injection needle is helped
One end of thruster 25 and syringe guide rail 35 card and and be slidably connected, the double track structure of the cooperation sliding rail 26 of syringe guide rail 35 can be with
It slides injection needle boost motor 25 along the vertical direction more steady soft, can not only make the sample introduction of hydrochloric acid solution body and sample (drips out
It is fixed) it is more accurate controllable, it can also prevent from vibrating on the influence of the error of measurement, the bottom of vertical plate 34 is equipped with pedestal 27 and is used to support
Entire injection crosspoint, the upper inner of vertical plate 34 are fixedly connected with the injector motor control panel of control injector motor 32
33, injector motor control panel 33 is carried out automatically controlling by control unit connection.
An interface in three interfaces of three-way switch valve 21 is connected to the syringe of injection needle 22, and another two is respectively with one
Root pipette is connected to an outlet tube, and the other end of pipette is connected with sample introduction needle, and sample introduction needle insertion fills known concentration
For aspirating hydrochloric acid below the liquid level of the container of hydrochloric acid solution, the other end of outlet tube is connected with titration needle, and (pipette goes out liquid
Pipe, sample introduction needle, titration needle are not drawn into the portion in figure due to being all relatively conventional prior art products in such titration experiments
Part, optional existing product carry out using), the titration needle fixed frame 9 for placing titration needle is fixedly connected on casing 1, titrates needle
The through-hole for placing titration needle is offered on fixed frame 9, titration needle can be suspended from burning by the fixed function of titration needle fixed frame 9
The ullage of cup 3 keeps stablizing.
The working principle of above-mentioned injection crosspoint are as follows:
When control unit control injector motor 32 drives 25 downlink of injection needle boost motor, injection needle boost motor 25 is driven
Piston shank 23 slides into the minimum point of sliding rail 26, and the spool in three-way switch valve 21 automatically switches at this time, uses liquid pipeline pass
It closes and opens simultaneously imbibition pipeline, then the hydrochloric acid of known concentration is stored up by being pumped into pipette automatically in the syringe of injection needle 22
It deposits；
When control unit control injector motor 32 drives 25 uplink of injection needle boost motor, injection needle boost motor 25 is driven
Piston shank 23 slides into the highest point of sliding rail 26, and the spool in three-way switch valve 21 automatically switches at this time, uses liquid pipeline and beats
It opens and simultaneously closes off imbibition pipeline, the hydrochloric acid being then stored in the syringe of injection needle 22 is pumped out automatically and is injected into beaker 3
It is titrated.
The liquid line that crosspoint is injected in the present invention is preferably the polytetrafluoro pipe of 0.5mm internal diameter, and outlet tube is preferably
316 stainless steel tubes of 0.2mm internal diameter, it is ensured that the accuracy of trickle.
Detection unit of the invention is one for detecting the PH sensor 4 of HPAM sample P H value to be measured in beaker 3, and PH is passed
Sensor 4 can select choosing to have all kinds of high-precision PH sensors 4 in technical products, and PH sensor 4 specifically connect knot with instrument
Structure are as follows: support member of the sensor fixed arm 6 as PH sensor 4, sensor fixed arm 6 are fixedly connected on casing 1
Upper first sensor bracket 7 and the second sensor bracket 8 of being removably connected with respectively is for clamping PH sensor 4, and first
Sensor stand 7 is different with the installation site of second sensor bracket 8, i.e., first sensor bracket 7 is resisted against 1 side wall of casing
On, second sensor bracket 8 is arranged in right above beaker 3, according to situation is applicable in, PH sensor 4 can be placed on different
On bracket, for example, when need titrate detection when, PH sensor 4 is placed on second sensor bracket 8 and detect in beaker 3 to
PH sensor 4 can be placed on first sensor bracket when not needing to detect or experiment finishes by the pH value for surveying HPAM sample
7, the collision between each component can be not only reduced, but also can be to avoid experimental implementation is interfered, first sensor bracket 7 and second sense
The both ends of device bracket 8 are respectively equipped with the elastic clip of C-shaped, and PH sensor 4 can be by being connected in elastic clip quickly side vertically
Being connected on sensor fixed arm 6 just.
Control unit includes multiple circuit boards interconnected, and specific structure is, circuit board and its between electric wire and company
Line can be disposed in casing 1, it is ensured that and it is beautiful and clean not interfere to test, and PH sensor 4, lifting motor 14, stirring electricity
Machine 15, injector motor 32 and three-way switch valve 21 respectively by electric wire etc. electric elements connect with control unit.
Further, the power switch 36, sensor interface 37 and power supply connecting with control unit are respectively equipped on casing 1
Socket 38, power switch 36 have a terminals 12, terminals 12 and sensing for starting instrument, the top of PH sensor 4
Device interface 37 is connected by electric wire, makes PH sensor 4 that the automatic control detection of control unit may be implemented, and control unit further includes
One backup power source 11 being set in casing 1, is used with facilitating in no socket power.
Instrument of the invention realizes increasingly automated and standardized work, can accurately judge pH value titration end-point,
The difference or error in reading of artificial gimmick are effectively avoided, the accuracy of degree of hydrolysis measurement numerical value is greatly improved, and is passed through
Various work orders and parameter, such as titration end-point, rate of titration, mixing speed parameter are inputted on liquid crystal display, and can
The various functions of instrument are called, to realize the functions such as PH calibration, automatic Titration, automatic stirring, automatic cleaning.
The present invention additionally provides a kind of measurement method of above-mentioned degree of hydrolysis measuring instrument, and concrete operations process includes following
Step:
Preparation before measurement:
Step 1: getting out the hydrochloric acid of a certain amount of known concentration；
Step 2: get out HPAM sample to be measured, its previously known solid content, and with high-precision electronic balance weighing its
Quality；
Step 3: the sample to be tested after weighing being put into beaker, a certain amount of distilled water is added, and stirred with stirring rod
Solution makes it completely dissolved；
Prepare measurement:
Step 4: being powered and open degree of hydrolysis measuring instrument；
Step 5: (instrument does not have to calibration PH sensor for a long time or need higher precision needs to calibrate PH sensor, instrument
Device does not need calibration PH sensor commonly using general), the calibration solution that PH is respectively 4 and 6.86 is got out, instrument is clicked
Then calibration menu in touch display screen carries out automatic Calibration to PH sensor with the calibration solution that PH is 4 and 6.86 respectively
And confirm, it is accurate to experimental data that the alignment purpose in this step mainly excludes PH sensor generation in the environment of not having to for a long time
The interference of property；
Step 6: pipette one end of instrument being put into the hydrochloric acid solution of ready known concentration, the buret of instrument
It accesses in waste liquid bottle, the cleaning menu on point touching display screen, sets cleaning volume, wash number and cleaning speed, it is right
Liquid line in degree of hydrolysis measuring instrument is cleaned automatically；
Start to measure:
Step 7: after having cleaned the pipeline of instrument, the beaker for filling HPAM sample solution to be measured being put into Instrumentation Operating Areas
In；
Step 8: the setting menu on point touching display screen, respectively input titration end-point parameter (generally 4.01PH),
Pre-control point parameter (bigger than titration end-point parameter), pre-control point rate of titration parameter, titration end-point speed parameter, instrument stirring speed
The equilibration time of degree and titration end-point；Wherein, according to optimal test effect, the mixing speed of stirring motor is preferably 50-
3000r/min, the pump rate of liquid aspiration of injector motor 32 are preferably 0-300uL/s, and the titration of instrument, pre-control velocity resolution are excellent
It is selected as 0.01uL/s；
Step 9: the HD parameter menu on point touching display screen joins concentration of hydrochloric acid parameter, HPAM sample quality to be measured
The known conditions such as several and solid content parameter are separately input to inside instrument；
Step 10: the automatic Titration menu on point touching display screen starts automatic Titration program, until hydrochloric acid solution drips
So that the pH value of solution is reached 4.01 into HPAM sample to be measured and stablize a period of time to fully reacting, and in titration end-point
When, the amount of record titration consumption hydrochloric acid, and the degree of hydrolysis test result of HPAM can be accurately calculated as follows:
HD=71CV/ (1000mS-23CV) × 100%；
In the formula:
The degree of hydrolysis of HD-HPAM to be measured, %；
The concentration of the known hydrochloric acid solution of C-, mol/L；
Ml of the known hydrochloric acid solution of V-HPAM sample solution consumption to be measured, mL；
The quality of m-HPAM sample to be measured, g；
S-solid content, the effective mass percentage in HPAM sample to be measured, i.e., the degree of purity of HPAM sample to be measured；
The difference of 23-sodium acrylate and acrylamide chain link quality；
71-with the quality of 1.00mL hydrochloric acid standard solution [c (HCL)=1.00mol/L] comparable acrylamide chain link；
PH sensor takes the process control of control unit in the judgement of terminal, and the probe of PH sensor incudes terminal,
It is automatically controlled when closing on terminal and slows down sample introduction (titration) speed, make sufficiently to react, be uniformly mixed, guarantee is dripped into hydrochloric acid volume
Accuracy.
After measurement:
Step 11: the pipeline of instrument being cleaned as step 6 with distillation water liquid, the only imbibition of instrument
Pipe one terminates distilled water；
Step 12: then PH sensor wash with distilled water blots the distilled water in PH sensor with blotting paper, and by PH
Sensor is immersed in Klorvess Liquid, and good maintenance can not only be played the role of to instrument by doing so, and is also next time
Test data is accurate, and reduces error and lay the foundation.
It is as follows to the operating environment requirements of equipment in the present invention:
Unless clearly stating in technical data, all components in instrument system must all be met the following requirements: be suitable for
+ 5 DEG C~+35 DEG C of temperature, relative humidity 5%-75%RH, around exist without the vibration for influencing performance, it is corrosion-free in surrounding air
Property gas exist, around the magnetic field in addition to earth's magnetic field without other influences and electric field exist.
Measurement range, pH:(0.00~14.00) pH；Temperature: (- 5.0~135.0) DEG C.
Calibration solution ph, 4.00ph and 6.86ph.
Instrument indication error, pH:0.01pH；Temperature: ± 0.4 DEG C (0 DEG C≤T≤60 DEG C) 1.0 DEG C (other ranges).
Buret (outlet tube) specification, internal diameter 0.5mm, outer diameter 1.6mm.Titrate gauge, internal diameter 0.2mm, outer diameter
0.7mm。
Injection needle syringe volume, 2.5ml.
Driver is titrated, titration precision: 0.5%, titrimetry repeatability: 0.2%.
Mixing speed, 50-3000r/min pump rate of liquid aspiration, 0-300uL/s.
Titration, pre-control velocity resolution, 0.01uL/s.Titration end-point, pre-control point, 0-14PH.
In this method, relative to existing manual titration method, stirring automation is realized, sample introduction automates, terminal is sentenced
Fixed automation and result calculation automation.
The present invention, automation, standardization level are high, can accurately judge pH value titration end-point, effectively avoid people
For gimmick difference or error in reading, degree of hydrolysis Numerical accuracy is greatly improved；In titration end-point, rate of titration and mixing speed
Etc. the diversity choices of parameters set upper height liberalization, the scope of application of product greatly improved.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn that the knots made under the inspiration of the present invention
Structure variation, the technical schemes that are same or similar to the present invention are fallen within the scope of protection of the present invention.
Claims (10)
1. a kind of degree of hydrolysis measuring instrument, which is characterized in that the casing including an outside, the front side wall lower section one of the casing
It is recessed operating space, the operating space is placed with the beaker for containing HPAM sample to be measured, is built-in with phase above the front side wall
The display screen and control unit to connect, the operating space are respectively disposed with lifting agitating unit, injection crosspoint and detection
Unit,
The lifting agitating unit successively includes stirring rod, lifting motor and stirring motor, and the top of the stirring rod is by described
Operating space is connected to the stirring motor after passing through the casing, and the lifting motor is fixedly installed in the casing, described
Lifting motor is connect by nut screw structure with the stirring motor, and drives the stirring motor along the lifting motor
Export axial vertical lifting；
The injection crosspoint successively includes three-way switch valve, injection needle and injector motor, the injector motor and note
It penetrates needle to be individually fixed on the casing, the injector motor passes through the piston shank of nut screw structure and the injection needle
Connection, and the piston shank is driven axially to aspirate along the output of the injector motor, three on the three-way switch valve
Interface is connected to respectively or is connected with the container and the beaker of the syringe of the injection needle and the hydrochloric acid solution for filling known concentration
It connects；
The detection unit includes one for detecting the PH sensor of HPAM sample to be measured in the beaker；
Described control unit includes multiple circuit boards interconnected, the PH sensor, lifting motor, stirring motor, injection
Device motor and three-way switch valve are connect with described control unit respectively.
2. degree of hydrolysis measuring instrument as described in claim 1, which is characterized in that the lifting agitating unit further includes lifting platform silk
The output shaft of thick stick, lifting seat and stirring motor fixing seat, the lifting platform lead screw and the lifting motor is coaxially pivotally connected and wears
In the lifting seat, the lifting seat drives vertical lifting, the lifting platform lead screw by the lifting motor by nut structure
Side be fixed with a lifting platform guide rail in parallel, one end of the lifting seat and the lifting platform guide rail card and and the company of sliding
It connects, the stirring motor connect linkage with the lifting seat by the stirring motor fixing seat.
3. degree of hydrolysis measuring instrument as described in claim 1, which is characterized in that the stirring rod arranges vertically, the stirring rod
It is coaxially pivotally connected with the output shaft of the stirring motor by shaft coupling, the bottom of the stirring rod is fixed with agitating paddle, described
It is integrally formed with two panels on agitating paddle and axle center is centrosymmetric the helical form stirring blade of arrangement, the agitating paddle is with the stirring
Bar is gone up and down above the beaker.
4. degree of hydrolysis measuring instrument as described in claim 1, which is characterized in that the injection crosspoint further includes that one is removable
Unload the vertical plate being connected on the casing and syringe lead screw and injection needle boost motor, the injector motor and injection needle
It is fixedly connected on inside and outside the vertical plate by injector motor fixing seat and injection needle fixing seat respectively, the threeway is cut
It changes valve and the injection needle and is fixedly connected on that the vertical plate is ipsilateral, and the piston shank passes through shank fixing seat and the injection needle
Boost motor connects linkage, offers boost motor sliding rail on the vertical plate, the injection needle boost motor is arranged in the boost motor
Sliding rail is simultaneously slidably connected along the boost motor sliding rail, and the syringe lead screw and the output shaft of the injector motor are coaxially pivotally connected
And it is equipped with syringe nut, the syringe nut connect linkage with the injection needle boost motor by nut fixing seat,
The injection needle boost motor drives vertical lifting by the injector motor.
5. degree of hydrolysis measuring instrument as claimed in claim 4, which is characterized in that the side of the syringe lead screw is fixed in parallel
One syringe guide rail, one end of the injection needle boost motor and the syringe guide rail card and and be slidably connected, the vertical plate
Bottom be equipped with pedestal, the upper inner of the vertical plate be fixedly connected with control the injector motor injector motor control
Plate.
6. degree of hydrolysis measuring instrument as described in claim 1, which is characterized in that one in three interfaces of the three-way switch valve
A interface is connected to the syringe of the injection needle, and another two is connected to a pipette and an outlet tube respectively, the imbibition
The other end of pipe is connected with sample introduction needle, filled described in the sample introduction needle insertion liquid level of the container of the hydrochloric acid solution of known concentration with
Under, the other end of the outlet tube is connected with titration needle, and the titration needle for placing the titration needle is fixedly connected on the casing
Fixed frame, described to titrate the through-hole for offering on needle fixed frame and placing the titration needle, the titration needle passes through the titration needle
Fixed frame is inserted into the ullage of the beaker.
7. degree of hydrolysis measuring instrument as described in claim 1, which is characterized in that the detection unit further includes being fixedly connected on institute
The sensor fixed arm on casing is stated, is removably connected with first sensor bracket and second respectively on the sensor fixed arm
Sensor stand, the first sensor bracket is against on the housing, and the second sensor rack arrangement is in the burning
The both ends of cup top, the first sensor bracket and second sensor bracket are respectively equipped with the elastic clip of C-shaped, and the PH is passed
Sensor is connected on the sensor fixed arm by being connected in the elastic clip vertically.
8. degree of hydrolysis measuring instrument as described in claim 1, which is characterized in that be respectively equipped on the casing single with the control
Power switch, sensor interface and the power outlet of member connection, the top of the PH sensor are terminals, the terminals with
The sensor interface is connected by electric wire, and described control unit further includes the backup power source being set in the casing.
9. the measurement method of degree of hydrolysis measuring instrument as described in claim 1, which comprises the following steps:
Preparation before measurement:
Step 1: getting out the hydrochloric acid of a certain amount of known concentration；
Step 2: getting out HPAM sample to be measured, it is known that its solid content, and with its quality of electronic balance weighing；
Step 3: the sample to be tested after weighing being put into beaker, is added a certain amount of distilled water, and with stirring rod agitating solution
It makes it completely dissolved；
Prepare measurement:
Step 4: being powered and open degree of hydrolysis measuring instrument；
Step 5: calibration PH sensor gets out the calibration solution that PH is respectively 4 and 6.86, clicks in the touch display screen of instrument
Calibration menu, then respectively with PH be 4 and 6.86 calibration solution PH sensor is demarcated and is confirmed；
Step 6: pipette one end of instrument being put into the hydrochloric acid solution of ready known concentration, the buret access of instrument
In waste liquid bottle, cleaning menu on point touching display screen sets cleaning volume, wash number and cleaning speed, to hydrolysis
Liquid line in degree measuring instrument is cleaned；
Start to measure:
Step 7: after having cleaned the pipeline of instrument, the beaker for filling HPAM sample solution to be measured being put into Instrumentation Operating Areas；
Step 8: the setting menu on point touching display screen inputs titration end-point parameter, pre-control point parameter, pre-control drop respectively
Determine speed parameter, titration end-point speed parameter, instrument mixing speed and titration end-point equilibration time；
Step 9: the HD parameter menu on point touching display screen, by concentration of hydrochloric acid parameter, HPAM sample quality parameters to be measured and
The known conditions such as solid content parameter are separately input to inside instrument；
Step 10: automatic Titration menu on point touching display screen starts automatic Titration program, until hydrochloric acid solution drip to
Surveying in HPAM sample makes the pH value of solution reach 4.01 and stablizes a period of time, and in titration end-point, record titration consumption
The amount of hydrochloric acid, and the degree of hydrolysis test result of HPAM is calculated as follows:
HD=71CV/ (1000mS-23CV) × 100%；
In the formula:
The degree of hydrolysis of HD-HPAM to be measured, %；
The concentration of the known hydrochloric acid solution of C-, mol/L；
Ml of the known hydrochloric acid solution of V-HPAM sample solution consumption to be measured, mL；
The quality of m-HPAM sample to be measured, g；
S-solid content, i.e., the degree of purity of HPAM sample to be measured；
The difference of 23-sodium acrylate and acrylamide chain link quality；
71-with the quality of 1.00mL hydrochloric acid standard solution [c (HCL)=1.00mol/L] comparable acrylamide chain link；
After measurement:
Step 11: the pipeline of instrument being cleaned as step 6 with distillation water liquid, only the pipette one of instrument
Terminate distilled water；
Step 12: then PH sensor wash with distilled water blots the distilled water in PH sensor with blotting paper, and PH is sensed
Device is immersed in Klorvess Liquid.
10. a kind of measurement method of degree of hydrolysis measuring instrument as claimed in claim 9, which is characterized in that in step 8, terminal
Parameter is 4.01PH, pre-control point parameter is bigger than titration end-point parameter, and the mixing speed of stirring motor is 50-3000r/min, injection
The pump rate of liquid aspiration of device motor is 0-300uL/s, and the titration of instrument, pre-control velocity resolution are 0.01uL/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910048568.3A CN109557247B (en) | 2019-01-18 | 2019-01-18 | Hydrolysis degree measuring instrument and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910048568.3A CN109557247B (en) | 2019-01-18 | 2019-01-18 | Hydrolysis degree measuring instrument and measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109557247A true CN109557247A (en) | 2019-04-02 |
| CN109557247B CN109557247B (en) | 2024-04-12 |
Family
ID=65873367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910048568.3A Active CN109557247B (en) | 2019-01-18 | 2019-01-18 | Hydrolysis degree measuring instrument and measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109557247B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530703A (en) * | 2019-05-08 | 2019-12-03 | 深圳雷杜生命科学股份有限公司 | A kind of liquid relief agitating device and its stirring quantization method |
| CN112881375A (en) * | 2021-01-14 | 2021-06-01 | 太原理工大学 | Gear oleic acid value survey device |
| CN113385120A (en) * | 2021-05-25 | 2021-09-14 | 华南理工大学 | Intelligent PH adjusting device and method |
| CN115595568A (en) * | 2022-10-22 | 2023-01-13 | 杨昆（Cn） | Aluminum foil surface passivation treatment system |
| CN115616141A (en) * | 2021-07-16 | 2023-01-17 | 北京先驱威锋技术开发公司 | High-precision titration analyzer |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB958692A (en) * | 1960-09-27 | 1964-05-21 | Fisher Scientific Co | Automatic titration apparatus |
| SU1684659A1 (en) * | 1989-04-11 | 1991-10-15 | Башкирский государственный научно-исследовательский институт нефтяной промышленности | Method of quantitative determination of polyacrylamide in aqueous solutions |
| EP0979860A1 (en) * | 1998-08-11 | 2000-02-16 | Societe Des Produits Nestle S.A. | Fat refining |
| JP2002214184A (en) * | 2001-01-22 | 2002-07-31 | Shotaro Oka | Automatic titration device |
| CN1415956A (en) * | 2002-12-05 | 2003-05-07 | 大庆油田有限责任公司 | Detection method of degree of hydrolysis in detection of polymer mass |
| JP2010054317A (en) * | 2008-08-28 | 2010-03-11 | Hiranuma Sangyo Kk | Automatic titrator |
| CN203874712U (en) * | 2014-04-23 | 2014-10-15 | 辽宁豪耐思石化装备有限公司 | Stirrer capable of being automatically hoisted |
| CN104730202A (en) * | 2015-04-13 | 2015-06-24 | 菏泽学院 | Automatic acid-base titration instrument |
| CN105424533A (en) * | 2015-11-14 | 2016-03-23 | 山东宝莫生物化工股份有限公司 | Hydrolysis degree determination method for polyacrylamide with high hydrolysis degree |
| CN205157516U (en) * | 2015-11-03 | 2016-04-13 | 浙江胜昔信息科技有限公司 | Experimental apparatus is titrated in neutralization |
| WO2016058198A1 (en) * | 2014-10-13 | 2016-04-21 | 徐新华 | Lifting/lowering rotatable support frame for display device |
| CN106885872A (en) * | 2015-12-15 | 2017-06-23 | 青岛果核仪器科技有限公司 | A kind of smart electronicses acid alkaline titrimeter |
| CN209471090U (en) * | 2019-01-18 | 2019-10-08 | 王雷 | A kind of degree of hydrolysis measuring instrument |
-
2019
- 2019-01-18 CN CN201910048568.3A patent/CN109557247B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB958692A (en) * | 1960-09-27 | 1964-05-21 | Fisher Scientific Co | Automatic titration apparatus |
| SU1684659A1 (en) * | 1989-04-11 | 1991-10-15 | Башкирский государственный научно-исследовательский институт нефтяной промышленности | Method of quantitative determination of polyacrylamide in aqueous solutions |
| EP0979860A1 (en) * | 1998-08-11 | 2000-02-16 | Societe Des Produits Nestle S.A. | Fat refining |
| JP2002214184A (en) * | 2001-01-22 | 2002-07-31 | Shotaro Oka | Automatic titration device |
| CN1415956A (en) * | 2002-12-05 | 2003-05-07 | 大庆油田有限责任公司 | Detection method of degree of hydrolysis in detection of polymer mass |
| JP2010054317A (en) * | 2008-08-28 | 2010-03-11 | Hiranuma Sangyo Kk | Automatic titrator |
| CN203874712U (en) * | 2014-04-23 | 2014-10-15 | 辽宁豪耐思石化装备有限公司 | Stirrer capable of being automatically hoisted |
| WO2016058198A1 (en) * | 2014-10-13 | 2016-04-21 | 徐新华 | Lifting/lowering rotatable support frame for display device |
| CN104730202A (en) * | 2015-04-13 | 2015-06-24 | 菏泽学院 | Automatic acid-base titration instrument |
| CN205157516U (en) * | 2015-11-03 | 2016-04-13 | 浙江胜昔信息科技有限公司 | Experimental apparatus is titrated in neutralization |
| CN105424533A (en) * | 2015-11-14 | 2016-03-23 | 山东宝莫生物化工股份有限公司 | Hydrolysis degree determination method for polyacrylamide with high hydrolysis degree |
| CN106885872A (en) * | 2015-12-15 | 2017-06-23 | 青岛果核仪器科技有限公司 | A kind of smart electronicses acid alkaline titrimeter |
| CN209471090U (en) * | 2019-01-18 | 2019-10-08 | 王雷 | A kind of degree of hydrolysis measuring instrument |
Non-Patent Citations (1)
| Title |
|---|
| 王鹤等: "疏水缔合型聚丙烯酰胺后水解工艺的正交试验研究", 《海洋石油》, vol. 29, no. 1, pages 67 - 71 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530703A (en) * | 2019-05-08 | 2019-12-03 | 深圳雷杜生命科学股份有限公司 | A kind of liquid relief agitating device and its stirring quantization method |
| CN110530703B (en) * | 2019-05-08 | 2021-12-21 | 深圳雷杜生命科学股份有限公司 | Liquid transfer stirring device |
| CN112881375A (en) * | 2021-01-14 | 2021-06-01 | 太原理工大学 | Gear oleic acid value survey device |
| CN113385120A (en) * | 2021-05-25 | 2021-09-14 | 华南理工大学 | Intelligent PH adjusting device and method |
| CN115616141A (en) * | 2021-07-16 | 2023-01-17 | 北京先驱威锋技术开发公司 | High-precision titration analyzer |
| CN115595568A (en) * | 2022-10-22 | 2023-01-13 | 杨昆（Cn） | Aluminum foil surface passivation treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109557247B (en) | 2024-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109557247A (en) | A kind of degree of hydrolysis measuring instrument and its measurement method | |
| CN209471090U (en) | A kind of degree of hydrolysis measuring instrument | |
| CN110609112A (en) | Liquid continuous stirring quality measurement and automatic titration device | |
| CN212379235U (en) | Novel automatic constant volume device | |
| CN113567514A (en) | Intelligent sodium ion analyzer device with full-automatic online calibration function and online calibration method | |
| CN208443608U (en) | A kind of sewage sampling device for waste water control | |
| CN203786993U (en) | Teaching experimental device of chemical oscillation reaction | |
| CN209280570U (en) | A kind of acid base titration device | |
| CN110006893A (en) | A kind of on-line automatic measuring method of silane zirconium concentration | |
| CN1042989A (en) | Fully-automatic balance titrator | |
| CN108508138A (en) | A kind of weight metering automatic titration device and its application method | |
| CN114236039A (en) | Automatic titrator used together with Zeta potentiometer and using method thereof | |
| CN208283348U (en) | A kind of number display titration instrument | |
| CN210465441U (en) | Elastogram appearance and visual elastogram equipment | |
| CN104569111A (en) | Online measurement device and method for ionic concentration of drilling fluid | |
| CN104034760A (en) | Multifunctional tin plate surface characteristic testing device and use method thereof | |
| CN208420823U (en) | A kind of intelligent titration outfit that food is quickly traced to the source | |
| CN206848036U (en) | A kind of high-precision constant volume dilution device | |
| CN109709261A (en) | The measuring method and analyzer of the degree of hydrolysis of polyacrylamide polymer containing sulfonate radical | |
| CN201122145Y (en) | Integral fluid density measuring instrument | |
| CN206378174U (en) | Measurer | |
| CN110208511A (en) | Elastic force figure instrument and visualization elastic force figure equipment | |
| CN109459430B (en) | Acid-base titration device and titration method | |
| CN107271251A (en) | A kind of high-precision constant volume dilution device | |
| CN205581070U (en) | Sodium chloride content spot test device among cellulose ether |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240311 Address after: 100086 Room 105, 1st Floor, Building 4, Courtyard A2, Huayuan Road, Haidian District, Beijing Applicant after: BEIJING SHENGWEI TECHNOLOGY Co.,Ltd. Country or region after: China Address before: Room 1101, Unit 5, 1st Floor, Courtyard A2, Huayuan Road, Haidian District, Beijing, 100086 Applicant before: Wang Lei Country or region before: China Applicant before: Li Changqing Applicant before: BEIJING SHENGWEI TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |