WO2024255650A1 - Appareil d'inspection de capteur de ph - Google Patents

Appareil d'inspection de capteur de ph Download PDF

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Publication number
WO2024255650A1
WO2024255650A1 PCT/CN2024/097372 CN2024097372W WO2024255650A1 WO 2024255650 A1 WO2024255650 A1 WO 2024255650A1 CN 2024097372 W CN2024097372 W CN 2024097372W WO 2024255650 A1 WO2024255650 A1 WO 2024255650A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
liquid outlet
support
fixing plate
solution cylinder
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.)
Ceased
Application number
PCT/CN2024/097372
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English (en)
Chinese (zh)
Inventor
唐伟超
张超敏
闫和平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Boqu Instrument Co Ltd
Original Assignee
Shanghai Boqu Instrument Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Boqu Instrument Co Ltd filed Critical Shanghai Boqu Instrument Co Ltd
Publication of WO2024255650A1 publication Critical patent/WO2024255650A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/302—Electrodes, e.g. test electrodes; Half-cells pH sensitive, e.g. quinhydron, antimony or hydrogen electrodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells

Definitions

  • the present invention relates to the technical field of water quality monitoring equipment, and in particular to an automatic pH electrode detection device which reduces manual participation, greatly reduces labor costs and time costs, effectively improves inspection efficiency, and reduces residual pH on a sensor head by wind sweeping.
  • pH electrode also known as pH probe or pH sensor
  • the electrode used in potentiometric analysis is called a primary cell.
  • a primary cell is a system that converts chemical reaction energy into electrical energy. The voltage of this cell is called electromotive force (EMF).
  • EMF electromotive force
  • This electromotive force (EMF) consists of two half-cells. One of the half-cells is called the measuring electrode, and its potential is related to the specific ion activity; the other half-cell is the reference half-cell, usually called the reference electrode, which is generally connected to the measuring solution and connected to the measuring instrument.
  • the most familiar and most commonly used pH indicator electrode is the glass electrode.
  • An industrial online pH measurement system usually consists of four parts: a pH sensor, i.e., a pH electrode, a pH transmitter, an electrode sheath, and a cable.
  • pH electrodes The service life of pH electrodes is generally one year, and they need to be replaced regularly, so the demand is high. After each pH electrode is manufactured, it must be tested before leaving the factory. The finished electrode must be connected to the testing machine and placed in three solutions with different pH values for testing. Each test takes more than one minute, and the electrode head needs to be cleaned after each test.
  • Existing pH sensor inspection methods are mostly manual inspections, and testers are required to measure the test fluid for each sensor one by one.
  • a single sensor requires multiple test fluids for inspection and measurement, which is inefficient and has high labor costs. Therefore, sensor testing methods need to be improved and optimized.
  • the purpose of the present invention is to provide an automatic pH electrode detection device which reduces manual participation, greatly reduces labor costs and time costs, effectively improves inspection efficiency, and reduces sensor head residues by wind blowing.
  • a pH sensor testing device comprising:
  • the solution cylinder is fixedly arranged, and a plurality of air blowing holes are evenly arranged around the upper part, a liquid inlet is arranged below the air blowing holes, and a liquid outlet is arranged at the bottom of the solution cylinder;
  • the air holes are respectively connected to the solenoid valves, the solenoid valves are connected to the air compressor, the liquid inlet is connected to the water pump, the water pump is connected to the multi-way valve, the multi-way valve is connected to multiple standard liquid bottles, the liquid outlet is connected to the liquid outlet valve and the collection bottle in sequence, and the air compressor, solenoid valve, water pump, multi-way valve, and liquid outlet valve are respectively connected to the controller.
  • the support leg and the support cross frame are rotatably connected, and a locking wrench is provided at the connection between the support leg and the support cross frame.
  • the supporting cross frame is symmetrically provided with locking bolts on both sides in the transverse direction.
  • the upper part of the locking bolt is a nut, the middle part is smooth, and the lower part is provided with threads.
  • the lower part of the locking bolt matches the internal threaded hole of the supporting cross frame.
  • the number of the blowing holes is four, and the angles between them are 90 degrees.
  • the solution cylinder has an opening at the top and a smooth curved surface at the bottom.
  • the controller controls the start and stop of the air compressor and the switch of the solenoid valve, the controller controls the start and stop of the water pump, the controller controls the opening channel of the multi-way valve, and the controller controls the switch of the liquid outlet valve.
  • the supporting legs of the support frame of the present invention are arranged vertically, and the supporting cross frame of the support frame is arranged horizontally.
  • the supporting cross frame is fixedly connected to the sensor fixing plate by locking bolts, and a plurality of pH sensors are arranged on the sensor fixing plate, and the lower part of the pH sensor extends into the solution cylinder;
  • the solution cylinder is fixedly arranged, and a plurality of air blowing holes are evenly arranged around the upper part, and a liquid inlet is arranged below the air blowing holes, and a liquid outlet is arranged at the bottom of the solution cylinder;
  • the air blowing holes are respectively connected to the solenoid valve, the solenoid valve is connected to the air compressor, the liquid inlet is connected to the water pump, the water pump is connected to the multi-way valve, the multi-way valve is connected to a plurality of standard liquid bottles, the liquid outlet is sequentially connected to the liquid outlet valve and the collection bottle, and the air compressor, the solenoid valve, the water pump, the multi-way
  • FIG3 is a top view of the sensor fixing plate of the present invention.
  • Fig. 4 is a front view of the solution cylinder of the present invention.
  • FIG5 is a top view of the solution cylinder of the present invention.
  • Fig. 6 is a control relationship diagram of the present invention.
  • Fig. 7 is a flow chart 1 of the present invention.
  • Fig. 8 is a flow chart 2 of the present invention.
  • a pH sensor testing device comprises: a support frame 1, a support leg 11 of the support frame 1 is arranged vertically, a support cross frame 12 of the support frame 1 is arranged horizontally, the support cross frame 12 is fixedly connected to a sensor fixing plate 2 by a locking bolt 13, a plurality of pH sensors 4 are arranged on the sensor fixing plate 2, and the lower part of the pH sensor 4 extends into a solution cylinder 3; the solution cylinder 3 is fixedly arranged, a plurality of blowing holes 31 are evenly arranged around the upper part, a liquid inlet 32 is arranged below the blowing holes 31, and a liquid outlet 33 is arranged at the bottom of the solution cylinder 3; the blowing holes 31 are respectively connected to a solenoid valve 6, the solenoid valve 6 is connected to an air compressor 5, the liquid inlet 32 is connected to a water pump 7, the water pump 7 is connected to a multi-way valve 8, the multi-way valve 8 is connected to a plurality of standard liquid bottles 9, the liquid outlet 33 is sequentially connected to a liquid outlet valve
  • the support leg 11 and the support cross frame 12 are rotatably connected, and a locking wrench is provided at the connection between the support leg 11 and the support cross frame 12.
  • the support cross frame 12 is symmetrically provided with locking bolts 13 on both sides of the horizontal direction.
  • the sensor fixing plate 2 is plate-shaped, and multiple rows of sensor fixing holes 21 are provided.
  • a sensor protection ring 22 is provided around the sensor fixing hole 21, and a pH sensor 4 is placed on the sensor protection ring 22.
  • a sensor fixing plate fixing groove 23 is provided at the end of the sensor fixing plate 2, and the sensor fixing plate fixing groove 23 passes through the column of the locking bolt 13.
  • the upper part of the locking bolt 13 is a nut, the middle part is smooth, and the lower part is provided with a thread.
  • the lower part of the locking bolt 13 cooperates with the internal threaded hole of the support cross frame 12.
  • There are four air holes 31, and the angle between them is 90 degrees.
  • the upper part of the solution cylinder 3 is open, and the lower part is a smooth arc
  • the controller 15 controls the start and stop of the air compressor 5 and the switch of the solenoid valve 6 , the controller 15 controls the start and stop of the water pump 7 , the controller 15 controls the opening of the channel of the multi-way valve 8 , and the controller 15 controls the switch of the liquid outlet valve 10 .
  • the support leg 11 is vertically arranged to support the support frame 1, and the support cross frame 12 of the support frame 1 is horizontally arranged to fix the sensor fixing plate 2, which is fixedly connected by the locking bolt 13, and the sensor fixing plate 2 extends into the middle of the locking bolt 13 through the sensor fixing plate fixing groove 23, and the lower part of the locking bolt 13 and the support cross frame 12 are fixed by threaded connection.
  • a plurality of pH sensors 4 are placed on the sensor fixing hole 21 of the sensor fixing plate 2, and the sensor protection ring 22 provided on the outer ring of the sensor fixing hole 21 is used to protect the pH sensor 4.
  • the bottom of the pH sensor 4 extends into the solution cylinder 3, and the pH sensor 4 is connected to the pH detector to display the test results.
  • the controller 15 controls the air compressor 5 to start, and then controls the corresponding solenoid valve 6 on the single blowing hole 31 to pump gas into the solution cylinder 3, thereby drying the pH sensor 4 in the solution cylinder 3.
  • the controller 15 controls the water pump 7 to start, and the controller 15 controls one channel of the multi-way valve 8 to open, and the water pump 7 sucks the standard solution in the standard solution bottle 9 into the solution cylinder 3.
  • Multiple standard solution bottles 9 are respectively filled with multiple different standard solutions, which are selected by the multi-way valve 8.
  • the controller 15 controls the liquid outlet valve 10 to open, and the standard solution in the solution cylinder 3 flows into the collection bottle 14 along the liquid outlet 33 for collection.
  • the solution cylinder 3 is fixedly arranged, and a plurality of blowing holes 31 are evenly arranged around the upper part. There are four blowing holes 31, and the angle between them is 90 degrees.
  • the detection head on the pH sensor 4 is effectively dried, and the wind blowing reduces the residue on the sensor head, thereby improving the detection accuracy.
  • the pH detector reads and judges, and judges the original signal reading. If the test is qualified, drain the standard solution 2 and record the test data. If the test is unqualified, mark the pH sensor 4 as not passing the test and record it.
  • the pH detector notifies the controller 15 through an electrical signal to continue the next step of detection.
  • the pH detector reads and judges, and judges the original signal reading. If the test is qualified, drain the standard solution 3 and record the test data. If the test is unqualified, mark the pH sensor 4 as not passing the test and record it. The pH detector notifies the controller 15 through an electrical signal to continue the next step of detection.
  • the fourth part of the test process is as follows: the fourth time to inject clean water for washing, then empty the washing liquid, and then use The gas is blown dry.
  • the pH detector completes the test, and the label is manually printed for the pH sensor 4 that passes the test.
  • the test is completed, and the operator performs the remaining steps.
  • Automation is achieved to reduce manual participation in the inspection process, greatly reducing labor costs and time costs; since the solutions are all configured with reagents specified by the national standard, there will be no high-risk and harmful solutions, and the test solutions can be reused within the shelf life of the preparation.
  • the safety of the inspection process is effectively guaranteed. It can effectively improve the inspection efficiency and increase the number of sensor inspections completed per unit time.
  • Simplify the manual process, and the manual intervention part is only the sensor connection and fixation before the start of the inspection and the removal and labeling classification after the inspection. At the same time, it liberates manpower and can carry out production work on multiple lines. The operation is simple, just click "Start" on the main console after the preparation process is completed. Easy maintenance, the test solution can be replaced using the logic of the inspection process. Scalability, more sensors can be expanded for simultaneous inspection, and multiple devices can also be carried out at the same time. Extensibility, it can be derived into the inspection of more categories of sensors in addition to pH sensors.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

La présente invention concerne un appareil d'inspection de capteur de pH. Des pieds de support d'un cadre de support sont disposés verticalement. Un cadre transversal de support du cadre de support est disposé transversalement. Le cadre transversal de support est fixé à demeure à une plaque de fixation de capteur au moyen d'un boulon de verrouillage. La plaque de fixation de capteur est pourvue d'une pluralité de capteurs de pH. Des parties inférieures des capteurs de pH s'étendent dans un cylindre de solution. Le cylindre de solution est fixé, et les périphéries de sa partie supérieure sont pourvues de manière régulière d'une pluralité de trous de soufflage d'air. Des entrées de liquide sont disposées au-dessous des trous de soufflage d'air. Une partie inférieure du cylindre de solution est pourvue d'une sortie de liquide. Les trous de soufflage d'air sont respectivement raccordés à des électrovannes. Les électrovannes sont raccordées à des compresseurs d'air. Les entrées de liquide sont raccordées à des pompes à eau. Les pompes à eau sont raccordées à des vannes à voies multiples. Les vannes à voies multiples sont raccordées à une pluralité de bouteilles de liquide étalon. La sortie de liquide est raccordée successivement à une vanne de sortie de liquide et à une bouteille de collecte. Le compresseur d'air, l'électrovanne, la pompe à eau, la vanne à voies multiples et la vanne de sortie de liquide sont respectivement raccordés à un dispositif de commande. Selon la présente invention, une participation manuelle peut être réduite, ce qui permet de réduire considérablement les coûts et le temps de travail, d'améliorer efficacement l'efficacité d'inspection et de réduire les résidus de tête de capteur au moyen d'un soufflage de vent.
PCT/CN2024/097372 2023-06-13 2024-06-04 Appareil d'inspection de capteur de ph Ceased WO2024255650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310696663.0 2023-06-13
CN202310696663.0A CN116698935B (zh) 2023-06-13 2023-06-13 一种pH传感器检验装置

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Publication Number Publication Date
WO2024255650A1 true WO2024255650A1 (fr) 2024-12-19

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PCT/CN2024/097372 Ceased WO2024255650A1 (fr) 2023-06-13 2024-06-04 Appareil d'inspection de capteur de ph

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WO (1) WO2024255650A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116698935B (zh) * 2023-06-13 2024-01-23 上海博取仪器有限公司 一种pH传感器检验装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206193013U (zh) * 2016-08-31 2017-05-24 克拉玛依市三达检测分析有限责任公司 一种液体pH连续自动测定装置
CN108107099A (zh) * 2018-01-31 2018-06-01 四川宏达石油天然气工程有限公司 在线分析仪表维护机器人及其运行方法
CN211318295U (zh) * 2019-12-27 2020-08-21 唐山三孚硅业股份有限公司 一种在pH测量过程的自动吹扫装置
CN115291003A (zh) * 2022-07-04 2022-11-04 上海博取仪器有限公司 一种pH电极自动检测装置
CN116698935A (zh) * 2023-06-13 2023-09-05 上海博取仪器有限公司 一种pH传感器检验装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040087031A1 (en) * 2002-11-05 2004-05-06 Simon Richard K. PH measurement system
DE102013109106A1 (de) * 2013-08-22 2015-03-12 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG pH-Sensor
CN205786586U (zh) * 2016-05-25 2016-12-07 上海蓝魂环保科技有限公司 一种用于船舶尾气脱硫装置的水质检测装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206193013U (zh) * 2016-08-31 2017-05-24 克拉玛依市三达检测分析有限责任公司 一种液体pH连续自动测定装置
CN108107099A (zh) * 2018-01-31 2018-06-01 四川宏达石油天然气工程有限公司 在线分析仪表维护机器人及其运行方法
CN211318295U (zh) * 2019-12-27 2020-08-21 唐山三孚硅业股份有限公司 一种在pH测量过程的自动吹扫装置
CN115291003A (zh) * 2022-07-04 2022-11-04 上海博取仪器有限公司 一种pH电极自动检测装置
CN116698935A (zh) * 2023-06-13 2023-09-05 上海博取仪器有限公司 一种pH传感器检验装置

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CN116698935A (zh) 2023-09-05
CN116698935B (zh) 2024-01-23

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