CN101413916A - Full-automatic detection device of double-glass pH electrode - Google Patents
Full-automatic detection device of double-glass pH electrode Download PDFInfo
- Publication number
- CN101413916A CN101413916A CNA2008100739395A CN200810073939A CN101413916A CN 101413916 A CN101413916 A CN 101413916A CN A2008100739395 A CNA2008100739395 A CN A2008100739395A CN 200810073939 A CN200810073939 A CN 200810073939A CN 101413916 A CN101413916 A CN 101413916A
- Authority
- CN
- China
- Prior art keywords
- electrode
- liquid
- cleaning fluid
- glass
- storage tank
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a dual-glass pH electrode full-automatic detection device, comprising two groups of glass electrodes, a motor, an electrode lifting system, a measurement control system, an upper/lower position limit Hall switch, a sampling measurement chamber and an electrode cleaning system; the electrode is arranged at the lower end of an electrode guide rod; the upper end of the electrode guide rod is provided with an electrode lead-out wire which is connected with the measurement control system; the motor is connected with the electrode lifting mechanism by a transmission mechanism; a Lambda-shaped trough of a variable spiral trough body is movably matched with a variable pin which is arranged on a connecting arm; the variable spiral trough body is installed so as to prevent the electrode from bumping with a liquid baffle plate and a liquid injecting nozzle during the movement process, thus avoiding damaging a position limit trough plate of the electrode; the electrode cleaning system is arranged at the lower part of the detection device and consists of a cleaning liquid storage box, an infusion pump, a liquid injecting nozzle and a liquid variable valve, thus leading the electrode cleaning system to be controlled fully and automatically.
Description
Technical field
The present invention relates to a kind of instrument of measuring acidity, particularly adopt glass electrode to detect the instrument of pH value of solution value.
Technical background
PH value to raw material and product detects and controls, it is chemical industry, light industry, food, the important control parameter of industries such as environmental protection, and be a kind of method comparatively accurately with the pH value that glass electrode is measured solution, if but glass electrode is put in the medium detection time into and has been grown, impurity in the medium can form certain incrustation on glass electrode, kation gathers, cause measurement data inaccurate and unstable, thereby because of automatic control accuracy difference causes poor reliability not use, influence the whole production flow process, for a long time, people to the measurement of pH general adopt glass electrode immersed take out after solution is measured a period of time, sampling and measuring was for the second time again after water and acid were cleaned the glass electrode of acidometer then.The weak point of such way is can not continuous coverage, causes the chemical reaction can not stepless control, has influenced the production of product.The inventor improved this measuring method afterwards, and had applied for Chinese patent, application number: 00268773.9, title: two glass electrode pH value automatic detection devices, notification number: CN2469451, applicant: Qinzhou Huacheng Auto-Controlled Equipment Factory, invention (design) people: Zhu Chengkai; Chen Shaozhang; Yellow Hua Zhi, this pair glass electrode pH value detection device mainly solves the difficult problem of signal interruption when removing incrustation in pH value online automatic detection process and designs, its major technique feature is made up of A, B two arrays of electrodes, and every group of electrode is made up of magnet, last magnetic Hall switch, motor, tooth bar, pinion wheel and electrode etc. respectively.Every group of electrode all sprays acid solution with the sour mouth of spray and cleans, and blocks under the acid solution with the sour plate of retaining and leaks.The direction control lever is then controlled the direction of sour plate of retaining and nozzle, and is detected and cleaning process by hocketing mutually of computer control two arrays of electrodes.Measuring-signal is not interrupted because of cleaning incrustation, improved the stability of detection signal and the accuracy of data, the precision and the reliability of the on-line automatic control of pH value are guaranteed.2006, the inventor is for the measurement and the pickling accuracy level of the process up and down that guarantees A, B two arrays of electrodes, applied for the utility model patent of " pH value on-line automatic detection device " again, application number: 200620167793.7, notification number: CN201000445 applies for (patent right) people: Qinzhou Hua Cheng-controlled Equipment Co, invention (design) people: yellow Hua Zhi; Zhu Chengkai, this pH value on-line automatic detection device, its control arm is fixed into one to electrode guide rod and rack shaft, tooth bar, the electrode lower end of the guide rod is equipped with glass electrode, rack shaft connects tooth bar, V-structure on the tooth bar and the V-type groove that is fixed on the guide holder on the body mutually movingly, tooth bar moves up and down under the driving of motor and pinion wheel, is contained in glass electrode on the electrode guide rod also along with moving up and down.Changing direction spiral groove body is equipped with in the control lever upper end, acid bezel is equipped with in the lower end, have the break-in helicla flute on the changing direction spiral groove body, guide pin is housed on the control arm, guide pin moves up and down along with tooth bar and slides in the break-in helicla flute, make acid bezel change direction, detect or promote back in the body and clean so that glass electrode can put in the sampling groove.Such structure can make the glass electrode circulation detect and clean according to computer instruction, and it is accurate, stable to keep detecting data, for the on-line automatic control of pH value provides technique guarantee.
Through production practices in a few years, the inventor finds that also there are some problems in present double-glass pH electrode pick-up unit: though 1, the V-type groove that is fixed on the guide holder on the body can make A, B two arrays of electrodes alternatively up and down measure and clean, but electrode departs from sometimes in motion process and is located at sampled measurements chamber and electrode and cleans electrode decline hole between (pickling) chamber, directly chews with shelves liquid (acid) plate and hydrojet to bump and damage glass electrode (the thousands of units of every cover electrode price); 2, the acid solution bucket is external, needs with the longer pipe road sour pump to be connected with the pickling chamber of pick-up unit, and each operation all is careful and is checked that pipeline connects, and gives people and equipment injury in order to avoid cause acid to leak; 3, pickling chamber joint is connected with external acid solution bucket, sometimes is easy to generate Lou sour phenomenon; 4, owing to mobile coulisse structural reason, electrode is changed complicated, maintenance difficult.
Summary of the invention
The purpose of this invention is to provide a kind of double-glass pH electrode pick-up unit, can overcome that pH glass electrode that above-mentioned detection device exists is damaged easily and problem such as the external easy leakage acid of acid solution bucket, it is easy for installation to have electrode, reliable, can realize that double-glass pH electrode replaces the zero failure operation of continuous on-line measurement with point.
Technical scheme of the present invention is as follows:
The double-glass pH electrode continuous detection apparatus comprises body, two groups of glass electrodes, motor, the rise fall of electrodes system, Measurement and Control System, spacing up and down Hall switch, sampled measurements chamber and electrode purge chamber, electrode is installed in the lower end in the electrode guide rod, electrode guide rod upper end has contact conductor to pick out to Measurement and Control System, motor is by gear train connection electrode elevating mechanism, electrode lifting mechanism comprises guide holder, control arm, rack shaft and tooth bar, guide holder is fixed on the body, the chevron shaped groove of changing direction spiral groove body cooperates with the break-in pin on the linking arm is interactive, liquid baffle board is equipped with in the control lever lower end, is characterized in:
(1) below of changing direction spiral groove body is provided with and prevents that electrode from chewing with liquid barrier and hydrojet bump and damage the spacing frid of electrode in motion process.
(2) bottom of body is fixed with the electrode purging system that can control automatically.
(3) the sampled measurements chamber of electrode below places the side of cleaning fluid storage tank, and measuring chamber is provided with imports and exports pipe, receives respectively on the container or pipeline of testing medium.
Above-described electrode purging system comprises cleaning fluid storage tank, infusion pump, spray nozzle and liquid reversal valve, cleaning fluid storage tank and body are made of one, the electrode purge chamber has the cleaning fluid refluxing opening to lead to the cleaning fluid storage tank, the cleaning fluid storage tank is provided with transparent window or liquid level gauge, infusion pump is installed on the body, and the transfusion pump intake piping is in cleaning fluid storage tank bottom, and the outlet of infusion pump is received the liquid reversal valve, the liquid reversal valve connects spray nozzle through the drain upper plate, and nozzle and liquid barrier are made of one.
Above-described liquid reversal valve is a T-valve, a passage connects nozzle, a passage connects the cleaning fluid storage tank, the 3rd passage connects the waste liquid sewage draining exit, the liquid reversal valve is connected nozzle when cleaning glass electrode, when the reduction of cleaning fluid acid concentration, when not reaching cleaning performance, by control device instruction liquid reversal valve the cleaning fluid that lost efficacy is got rid of, replenished new cleaning fluid then and enter the cleaning fluid storage tank.
Above-described Measurement and Control System can be carried out Automatic Control to rise fall of electrodes system and electrode purging system, that is to say, when the one group of electrode (A) in the double-glass pH electrode drops to measuring chamber and measures by control lever and electrode guide rod, electrode purging system startup infusion pump is organized electrode (B) ejection cleaning fluid to another and is cleaned, cleaning finishes and can make electrode (B) enter the measurement state by Measurement and Control System instruction control bar and guide rod, and electrode (A) enters the cleaning state, perhaps two electrodes await orders simultaneously (two electrodes are all in the purge chamber).
Above-described Measurement and Control System comprises signal receiving circuit, analyze comparator circuit, processor (single-chip microcomputer or micro computer), display and control signal output circuit, two glass electrodes and spacing up and down Hall switch insert signal receiving circuit in the Measurement and Control System with measuring-signal, signal receiving circuit is received and is analyzed comparator circuit and processor, measured value is shown and controls, output to the topworks of rise fall of electrodes system and electrode purging system and production technology by the control signal output circuit, the technological operation worker just can understand the index of production run and the corresponding control operation that liquid is taked at any time like this.
Two patents of existing with the inventor " two glass electrode pH value automatic detection device " and " pH value on-line automatic detection device " are compared, and substantive distinguishing features and obvious improvement that the present invention gives prominence to are:
1, the past is because rise fall of electrodes system misoperation or human factor (not noting when the operative employee starts shooting); electrode is easy to chew the damage that bumps with liquid barrier and hydrojet in the decline process; the present invention prevents that electrode from chewing with liquid barrier and hydrojet and bumps and damage the spacing frid of electrode being provided with below the changing direction spiral groove body in motion process; liquid baffle board also is fixed on spacing frid bottom, has protected electrode better.
2, the cleaning fluid of the electrode purging system in past is placed on the outside separately, needing will to clean liquid pump with the longer pipe road is connected with the purge chamber of pick-up unit, when using acid as cleaning fluid, if pipeline connects and causes when bad acid to leak easily to give people and equipment injury, the present invention is made of one cleaning fluid storage tank and body, the electrode purging system just can be controlled fully automatically, and increasing the liquid reversal valve is T-valve, the liquid reversal valve is connected nozzle when cleaning glass electrode, when the cleaning fluid acid concentration reduces, when not reaching cleaning performance, by control device instruction liquid reversal valve the cleaning fluid that lost efficacy is got rid of, replenished new cleaning fluid then and enter the cleaning fluid storage tank.
3, the automatic control degree of total system operation has had further lifting, peace and quiet with the sugar juice decoloring in sugar refinery is example, full-automatic detection device of double-glass pH electrode of the present invention is applied to the topworks that syrup pH measured and controlled stove drying or adds ash, can very exactly syrup pH be controlled between 1-3%, improve the controlling level and the product quality in sugar refinery.
Description of drawings
Fig. 1 is a full-automatic detection device of double-glass pH electrode general assembly drawing of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is rise fall of electrodes system decomposition figure.
The parts table of comparisons among the figure:
1, the liquor charging mouth, 2, pump housing guard shield, 3, B organizes electrode, 4, the cleaning fluid storage tank, 5, the sampled measurements chamber, 6, liquid baffle board, 7, hydrojet is chewed, 8, B group electrode guide rod, 9, shelves liquid glass, 10, A organizes electrode, 11, B organizes linking arm, 12, B organizes spacing set screw, 13, A group electrode guide rod, 14, A organizes tooth bar, 15, A organizes linking arm, 16, A group electrode cable fixed cap, 17, A group break-in pin, 18, changing direction spiral groove body, 19, the break-in helicla flute, 20, liquid baffle board, 21, fixed bar on the control lever, 22, B class upper limit position Hall switch, 23, upper limit Hall switch 23 fixed heads, 24, spacing frid, 25, B lower class limit position Hall switch, 26, lower limit Hall switch fixed head, 27, many fastening clip for cables, 28, motor shroud, 29, guide holder, 30, B organizes motor gear, 31, B organizes motor, 32, the waterproof bonnet, 33, B organizes tooth bar, 34, the liquid reversal valve, 35, the drain lower plate, 36, leakage fluid dram, 37, the drain upper plate, 38, body, 39, the cleaning fluid refluxing opening, 40, transparent window, 41, infusion pump.51, A group motor, 52, A organizes spacing set screw, 53, B electrode fixed cap, 57, B group break-in pin, 60, A organizes motor gear.
Embodiment
As shown in Figure 1, double-glass pH electrode continuous detection apparatus of the present invention comprises two groups of glass electrode: A group electrodes 10 and B group electrode 3, two groups of motor: B group motors 31 (A group motor has been blocked in the back of body 38), the two arrays of electrodes jacking system, Measurement and Control System, spacing up and down Hall switch: B class upper limit position Hall switch 22 and B lower class limit position Hall switch 25 (A group position Hall switch has been blocked in the back of body 38), B group Hall switch is installed on the lower limit Hall switch fixed head 26, adjust its position (it also is such effect that A organizes spacing set screw 52) with spacing set screw 12, B group electrode (pH glass electrode) 3 is installed in the lower end of electrode guide rod 8, there is B electrode fixed cap 53 upper end of B electrode guide rod 8, contact conductor picks out to Measurement and Control System by many fastening clip for cables 27 from B electrode fixed cap 53, on the A group electrode 10 cable fixed cap 16 is arranged also, B group motor 31 connects the B electrode lifting mechanism by gear train, the B electrode lifting mechanism comprises guide holder 29, B organizes linking arm 11, rack shaft and tooth bar, guide holder 29 is fixed on the body 38, A group motor 51 is also by rise fall of electrodes system and A group tooth bar 14, A group linking arm 15 makes A group electrode guide rod 13 can drive A group electrode 10 up and down and moves and measure, on the B group motor 31 motor shroud 28 is arranged all, A group motor 51 also has motor shroud; Guide holder 29 and tooth bar 14 mutually movingly, changing direction spiral groove body 18 chevron shaped grooves cooperate with break-in pin 17 interactions on the linking arm 15; Liquid baffle board 20 is equipped with in the control lever lower end; The electrode purging system comprises that hydrojet chews 7 and cleaning fluid conveying pipeline.Below changing direction spiral groove body 18, be provided with and prevent that electrode from chewing with liquid barrier 6 and hydrojet bump and damage the spacing frid 24 of electrode in motion process, move up and down at electrode and to play the guide rail effect in the process, liquid baffle board 20 is arranged at body 38 tops, and body 38 is equipped with the back a grade liquid glass 9.
Electrode purging system of the present invention comprises the cleaning fluid storage tank 4 that is installed in 5 bottoms, sampled measurements chamber, infusion pump 41, hydrojet chews 7, drain upper plate 37, drain lower plate 35, leakage fluid dram 36 and liquid reversal valve 34, cleaning fluid enters cleaning fluid storage tank 4 from liquor charging mouth 1, cleaning fluid storage tank 4 is made of one with body 38, cleaning fluid storage tank 4 has cleaning fluid refluxing opening 39 to lead to cleaning fluid storage tank 4, cleaning fluid storage tank 4 is provided with transparent window 40 or liquid level gauge, can observe the liquid level of cleaning fluid, infusion pump 41 is installed on the body 38, there is pump housing guard shield 2 outside, the inlet tube of infusion pump 41 is in cleaning fluid storage tank bottom, the outlet of infusion pump 41 is received liquid reversal valve 34, the liquid reversal valve connects hydrojet and chews 7, and hydrojet is chewed 7 and is made of one with liquid barrier 6.The cleaning fluid storage tank comprises drain lower plate 35 and drain upper plate 37, flows down from cleaning fluid refluxing opening 39 behind the cleaning fluid cleaning electrode.
Liquid reversal valve 41 is a T-valve, and passage connects 7, one passages of spray nozzle and connects 4, the three passages of cleaning fluid storage tank and connect the waste liquid sewage draining exit.The liquid reversal valve is connected spray nozzle 7 when cleaning glass electrode, when the cleaning fluid acid concentration reduces, when not reaching cleaning performance, with the cleaning fluid eliminating of losing efficacy, replenish new cleaning fluid then and enter cleaning fluid storage tank 4 by control device instruction liquid reversal valve 41.
The surveying work process and the principle of double-glass pH electrode continuous detection apparatus of the present invention are as follows:
The sampling groove of measuring chamber places the side of cleaning fluid storage tank 4, and tested fluid enters or flows through the sampling groove, and B group electrode 3 puts in the sampling groove 5 and detects, and collects data-signal and is sent to computer continuously by cable and handle.And this moment, A electrode 10 has risen to predetermined height, the sensor of stop means is pressed close to upper limit Hall switch 22, (A group electrode guide rod 13 and on move, signal is passed to the computer of pulpit by lead), just stop operating after B group motor 31 is received signal.Measure when B group electrode 3 and to finish, motor transmission shaft is equipped with tooth bar 33 and rises, and also drives electrode purging system guide rod 8 in the uphill process and turns an angle, and makes and hydrojet is chewed 7 and aligned B group electrode 3.Computer instruction infusion pump 41 starts then, and the cleaning fluid with certain pressure is chewed 7 from hydrojet and ejected B group electrode 3 is cleaned.Cleaning fluid after the injection is flowed down by cleaning fluid refluxing opening 39.In order to prevent that liquid liquid from leaking, the electrode purge chamber on the pallet fences up with cloche 9.After time, computer instruction B organizes electric motor starting through preset detection, and B group motor gear 30 and B group tooth bar 33 move down electrode guide rod 8.B group electrode 3 just puts in measuring chamber (A group motor gear 60 is also identical with action with the relation of A group tooth bar, electrode guide rod).After dropping to predetermined altitude, the sensor of stop means is pressed close to limit switch, just stops operating after B group motor is received signal, and the B electrode begins to enter the detection-phase of awaiting orders.Through certain hour, treat signal stabilization after, under computer instruction, reason A group electrode 10 provides detection signal just to automatically switch to by B group electrode.Like this, detection signal does not interrupt, and reaches the purpose of continous-stable.
When electrode is height-rise or high-fall, all be in two electrode middles for guaranteeing that liquid barrier and hydrojet are chewed, preventing that electrode from chewing with liquid barrier and hydrojet in motion process bumps and damages a limit frid 24, break-in pin of electrode and limited moving of electrode guide rod 8 below changing direction spiral groove body, liquid barrier and hydrojet are chewed be between two electrodes, guarantee electrode safety.
Claims (4)
1, a kind of full-automatic detection device of double-glass pH electrode, comprise body, two groups of glass electrodes, motor, the rise fall of electrodes system, Measurement and Control System, spacing up and down Hall switch, sampled measurements chamber and electrode purge chamber, electrode is installed in the electrode lower end of the guide rod, electrode guide rod upper end has contact conductor to pick out to Measurement and Control System, motor is by gear train connection electrode elevating mechanism, electrode lifting mechanism comprises guide holder, control arm, rack shaft and tooth bar, guide holder is fixed on the body, the chevron shaped groove of changing direction spiral groove body cooperates with the break-in pin on the linking arm is interactive, liquid baffle board is equipped with in the control lever lower end, it is characterized in that:
1. the below of changing direction spiral groove body (18) is provided with and prevents that electrode from chewing (7) with liquid barrier (6) and hydrojet and bumping and the spacing frid (24) that damages electrode in motion process;
2. the bottom of body (38) is fixed with the electrode purging system that can control automatically;
3. the sampled measurements chamber (5) of electrode below places the side of cleaning fluid storage tank 4, and measuring chamber (5) is provided with imports and exports pipe, receives respectively on the container or pipeline of testing medium.
2, full-automatic detection device of double-glass pH electrode according to claim 1, it is characterized in that: described liquid reversal valve (34) is a T-valve, passage of T-valve connects spray nozzle (7), and a passage connects cleaning fluid storage tank (4), and the 3rd passage connects waste liquid sewage draining exit (36).
3, full-automatic detection device of double-glass pH electrode according to claim 1, it is characterized in that: the electrode purging system comprises cleaning fluid storage tank (4), infusion pump (41), spray nozzle (7) and liquid reversal valve (34), cleaning fluid storage tank (4) is made of one with body (38), the electrode purge chamber has cleaning fluid refluxing opening (39) to lead to cleaning fluid storage tank (4), cleaning fluid storage tank (4) is provided with transparent window (40) or liquid level gauge, infusion pump (41) is installed on the body (38), the inlet tube of infusion pump (41) is in cleaning fluid storage tank (4) bottom, the outlet of infusion pump (41) is received liquid reversal valve (34), liquid reversal valve (34) connects spray nozzle (7) through drain upper plate (37), and nozzle (7) is made of one with liquid barrier (6).
4, full-automatic detection device of double-glass pH electrode according to claim 1, it is characterized in that: described Measurement and Control System comprises signal receiving circuit, analyze comparator circuit, processor, display and control signal output circuit, two glass electrodes and spacing up and down Hall switch insert signal receiving circuit in the Measurement and Control System with measuring-signal, signal receiving circuit is received and is analyzed comparator circuit and processor, measured value is shown and controls, output to the topworks of rise fall of electrodes system and electrode purging system and production technology by the control signal output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100739395A CN101413916A (en) | 2008-11-28 | 2008-11-28 | Full-automatic detection device of double-glass pH electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100739395A CN101413916A (en) | 2008-11-28 | 2008-11-28 | Full-automatic detection device of double-glass pH electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101413916A true CN101413916A (en) | 2009-04-22 |
Family
ID=40594552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100739395A Pending CN101413916A (en) | 2008-11-28 | 2008-11-28 | Full-automatic detection device of double-glass pH electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101413916A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103120A (en) * | 2010-12-23 | 2011-06-22 | 钦州华成自控设备有限公司 | Improved double-glass pH electrode fully automatic detection device |
| CN102375012A (en) * | 2010-08-10 | 2012-03-14 | 中国石油化工集团公司 | Method for cleaning glass electrode used for on-line measurement of pH value of drilling fluid |
| CN104460414A (en) * | 2014-10-28 | 2015-03-25 | 南京中电自动化有限公司 | Input type automatic PH glass electrode adjusting device and method |
| CN117074886A (en) * | 2023-08-28 | 2023-11-17 | 国网湖北省电力有限公司超高压公司 | Test method and system for heat-resistant shielding clothing test electrode |
-
2008
- 2008-11-28 CN CNA2008100739395A patent/CN101413916A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375012A (en) * | 2010-08-10 | 2012-03-14 | 中国石油化工集团公司 | Method for cleaning glass electrode used for on-line measurement of pH value of drilling fluid |
| CN102103120A (en) * | 2010-12-23 | 2011-06-22 | 钦州华成自控设备有限公司 | Improved double-glass pH electrode fully automatic detection device |
| CN102103120B (en) * | 2010-12-23 | 2013-06-12 | 钦州华成自控设备有限公司 | Improved double-glass pH electrode fully automatic detection device |
| CN104460414A (en) * | 2014-10-28 | 2015-03-25 | 南京中电自动化有限公司 | Input type automatic PH glass electrode adjusting device and method |
| CN117074886A (en) * | 2023-08-28 | 2023-11-17 | 国网湖北省电力有限公司超高压公司 | Test method and system for heat-resistant shielding clothing test electrode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106525905B (en) | The monitoring water quality on line system cleaned and demarcated automatically with electrode | |
| CN101413916A (en) | Full-automatic detection device of double-glass pH electrode | |
| CN115656165B (en) | Rapid detection device and detection method for soil acidity and alkalinity | |
| CN102507700B (en) | Direct insertion type pH value detector | |
| CN111982766A (en) | Automatic in-situ detection device and method for sludge settlement ratio | |
| CN101871909B (en) | Bielectrode liquid parameter on-line measuring device | |
| CN207730303U (en) | Anti- liquid fluctuating interference liquid level detection gauge and detection device | |
| CN201307099Y (en) | Automatically detecting device for pH glass electrode | |
| CN105547937A (en) | Automatic control device for detecting erythrocyte sedimentation rate data | |
| CN201909773U (en) | Improved full-automatic detection device with double pH (potential of hydrogen) glass electrodes | |
| CN201796008U (en) | Online measurement device for liquid parameters | |
| CN102103120B (en) | Improved double-glass pH electrode fully automatic detection device | |
| CN218099124U (en) | Water supply pipe water quality change monitoring device | |
| CN202362270U (en) | In-line pH value detector | |
| KR200322759Y1 (en) | Measurement and transmition device for measuring a PH, conductivity and rain volume by collecting acid rain and snow. | |
| CN201796007U (en) | Bipolar liquid parameter online measuring device | |
| CN206573331U (en) | A kind of water quality monitoring sampling and quality control system | |
| CN112285330A (en) | Self-cleaning standing water content analyzer | |
| CN211122832U (en) | Multi-parameter pool for water quality monitor | |
| CN2469451Y (en) | PH value autodetecting device with double glass electrode | |
| CN108050881B (en) | Glueballs, which is counted, monitors system with glueballs form | |
| CN212844870U (en) | Integrated industrial smoke detection device | |
| CN207318157U (en) | Environment runner intellegent sampling system | |
| CN213689626U (en) | Self-cleaning standing water content analyzer | |
| CN219736448U (en) | Special flow monitoring device for earthquake fluid well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090422 |