CN201796007U - Bipolar liquid parameter online measuring device - Google Patents

Abstract

The utility model discloses a bipolar liquid multi-parameter online measuring device, which comprises electrodes, a controller and a parameter detector. The bipolar liquid multi-parameter online measuring device is characterized by further comprising a sealed cleaning recycling box, two electrode displacement assemblies in the same structures, an electrode cleaning assembly and a cleaning liquid heating and constant-temperature control device, a liquid level detecting tank is arranged on one side of the sealed cleaning recycling box, electrode cleaning liquid and a cleaning pump are arranged inside the sealed cleaning recycling box, the two electrode displacement assemblies are arranged on the cleaning recycling box, each electrode displacement assembly consists of a mounting sheath capable of being provided with one electrode or a plurality of electrodes, and generates electrode displacement, the electrode cleaning assembly and the cleaning liquid heating constant-temperature control device are arranged in the cleaning recycling box, and the electrode cleaning assembly includes two spaced electrode cleaning positions. The measuring device is controlled by the controller to displace the electrodes into liquid of the liquid level detecting tank, generated measurement information is transmitted to the detector by the aid of an outgoing line, and then the electrodes are displaced into the cleaning positions of the electrode cleaning assembly to be cleanly washed. The two sets of electrodes can be measured and cleaned alternately, and the bipolar liquid multi-parameter online measuring device can simultaneously measure one parameter or a plurality of parameters of online liquid, and is suitable for online measurement of diverse parameters of various types of liquid.

Description

Bielectrode liquid parameter on-line measuring device

Technical field

The utility model relates to a kind of measurement mechanism, especially the on-line measuring device of liquid parameter.

Background technology

In commercial production, the online detections of parameter such as the pH value of liquid, conductivity, concentration, turbidity, content of sulfur dioxide are the check to each operation result of liquid production process, are again the main foundations of control production operation.The online detection application of liquid parameter is very extensive, such as processing industries such as oil, chemical industry, papermaking, sugaring, pharmacy, wastewater treatment, food.At present, domesticly relate to the online detection of liquid parameter many ways and meanses are arranged, as conductivity meter, ultrasound wave, probe (electrode) and nuclear radiation detecting apparatus etc.Probe wherein (electrode)---use many hereinafter to be referred as the measuring method of electrode.The method of electrode measurement mainly is that electrode is reached in the liquid of being surveyed, and the reflection on probe of the relevant information of liquid becomes the signal of electricity, and these electric signal draw the correlation parameter of respective liquid after interlock circuit is handled.Structure is simpler, the reliable results of measuring easy to use.But because electrode reaches in the liquid of being surveyed, its surface can be subjected to the effect of fluid to be measured, gradually forms one deck dirt attached to electrode surface, and these attachments can influence the surveying work of electrode, forms error.For a long time, people adopt sample with course of reaction to take out use corresponding apparatus measures to the measurement of these parameters is general, sampling and measuring second time again after with cleaning fluid potential electrode being cleaned 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.People improved this measuring method afterwards, two glass electrode pH pick-up units are installed on the equipment, by lead signal is drawn out to control and display, this pair of glass electrode pH automatic detection device is to adopt two to measure the alternately measurement of glass electrode of pH value, the device that cleans, when descending, electrode A is dipped in sampler chamber when measuring, electrode B rises to the purge chamber, by magnetic force acid pump ejection watery hydrochloric acid cleaning fluid, the incrustation on the electrode is removed in the dissolving flushing, acid solution flow back into external acid solution bucket, recycles; After electrode A work a period of time, change and drop to sampler chamber by electrode B and measure, electrode A rises to the purge chamber and cleans.Alternately measuring, cleaning of A, B electrode controlled automatically by controller, thereby reached the purpose that the continuous coverage of pH value guarantees to remove incrustation again.Other parameters are not adopted online measuring method.As [author] Chen Shaozhang open " mentality of designing and characteristics of the two glass electrode pH robot control system(RCS)s of HC-255 type " of reporting on " Guangxi sucrose " publication, and China Patent No. is 00268773.9 " two glass electrode pH value automatic detection device " and 200620167793.7 " pH value on-line automatic detection device ".What they were put down in writing can only measure single parameter p H value; And because direction control lever design is unreasonable, can not two arrays of electrodes one lifting, cleaning, efficient is lower; When rise fall of electrodes, produce fault easily, one-jet is injection design from bottom to top, cleaning performance is not good, spray acid has the sour phenomenon of leakage when cleaning, also because structural reason, electrode is changed complicated, maintenance difficult, and rinse liquid outlet needs an external cleaning collection box, inconvenience is installed and brings cleaning fluid to leak hidden danger.

The utility model content

The purpose of this utility model provides a kind of bipolar electrode liquid multiparameter on-line measurement device, and is simple in structure, and reliable operation and easy to use can detect the correlation parameter of a plurality of liquid simultaneously, and accuracy of detection is improved on the cleaning electrode surface automatically.

Concrete technical scheme of the present utility model is:

A kind of bipolar electrode liquid multiparameter on-line measurement device, it comprises that liquid detects groove, parameter measurement electrode, electrode cleaning fluid, controller and parametric detector, is characterized in that also comprising:

An outer side is provided with described liquid and detects groove, in be provided with and comprise electrode cleaning fluid and scavenging pump, be provided with the closed cleaning collection box of two pairs of parameter measurement electrode detection holes and clean-out opening above, detection hole wherein is located at liquid, and to detect the top of groove corresponding with it, and casing is horizontally disposed with;

Be located at above the described cleaning collection box, mainly by one or many parameter measurement electrodes are installed, and the electrode that can make the parameter measurement electrode produce displacement is installed the identical potential electrode displacement assembly of two groups of structures that sheath constitutes; Wherein, two rest points of potential electrode displacement are respectively with to be located at the detection hole and the clean-out opening that clean on the collection box face separately corresponding;

Be located at the electrode that described cleaning collection box is interior, the below of clean-out opening comprises two spacing parameter potential electrode cleaning positions and clean assembly, corresponding respectively clean-out opening and the electrode separately in two electrode cleaning positions wherein, the inner peripheral of each cleaning position is provided with a plurality of spray orifices that face toward electrode from different perspectives;

Be located at the cleaning fluid heated constant temperature control device in the described cleaning collection box.

Described electrode displacement assembly comprises installing plate, motor, cogs, driving gear, lower gear, top offset pole, bottom offset pole, displacement connecting rod and electrode are installed sheath; Wherein, motor, cog and lower gear is positioned on the installing plate, driving gear is fixedlyed connected with the output shaft of motor, and with cog and lower gear is meshed in a straight line; One end of top offset pole and bottom offset pole respectively with cog, lower gear off-centre is fixedly connected, the other end connects with the two ends of displacement connecting rod are movable respectively; The side that the lateral surface of displacement connecting rod and electrode are installed sheath is fixedly connected.

Described electrode cleans assembly and comprises two electrode cleaning positions of cylinder hole shape at interval, is provided with the cleaning liquid bath that communicates around two electrode cleaning positions, and the periphery of inboard, electrode cleaning position is provided with a plurality of spray orifices that face toward electrode from different perspectives and communicate with the cleaning liquid bath; Be provided with the cleaning fluid siphunculus on the interval of two electrode cleaning position cylindrical holes, the upper end of this siphunculus communicates with cleaning liquid bath, and the lower end is communicated with liquid pump by cleaning connecting pipe.

The bipolar electrode liquid multiparameter on-line measurement device of above structure, be provided with two groups of separate electrode displacement assemblies, the electrode of every group of displacement assembly is installed sheath can install one or many parameter measurement electrodes simultaneously, electrode stretches out from the bottom in sheath, electrode is fixed by hold-doun nut, be provided with fairlead in the middle of the hold-doun nut, draw for the electrode signal line.The parameter measurement electrode is hereinafter to be referred as electrode.Under the control of controller, electrode displacement is inserted into liquid through the electrode detection hole and detects in the liquid of groove, the metrical information that electrode produces is connected with parametric detector by the electrode signal extension line, and parametric detector carries out showing after the analyzing and processing the also storage of value of each parameter to metrical information; Then, electrode displacement is inserted into electrode through clean-out opening and cleans in the cleaning position of assembly, and scavenging pump work is rinsed facing to spraying in the spray orifice of electrode cleaning fluid well from different perspectives to electrode.Two arrays of electrodes can hocket detection, clean, simultaneously on-line liquid is carried out the testing of one or more parameters, satisfy the requirement that present enterprise brings in constant renewal in.Detect, cleaning positions level design on closed cleaning collection box, stop cleaning fluid and drain to and pollute measured object in the measured object.Because the general temperature of measured object is all at 55-65 ℃, and the temperature of cleaning fluid is general identical with room temperature, and electrode meeting in the process of often measuring, cleaning caused premature aging and damaged because of expanding with heat and contract with cold sometimes about 5 ℃ winter.Therefore, also be provided with cleaning fluid heated constant temperature control device, cleaning fluid heated constantly be more conducive to the temperature of electrode maintenance as required, prolonging the serviceable life of electrode as far as possible.

Description of drawings

Fig. 1 is a main TV structure synoptic diagram of the present utility model.

Fig. 2 is that the sectional structure synoptic diagram is looked on the right side of Fig. 1.

Fig. 3 is a three-dimensional sectional structure synoptic diagram of the present utility model.

Fig. 4 is the three-dimensional structure for amplifying synoptic diagram that electrode cleans assembly among Fig. 2.

Fig. 5 be Fig. 4 electrode clean assembly analyse and observe the structure for amplifying synoptic diagram.

Fig. 6 is the perspective view that multi-electrode is installed sheath among Fig. 1.

Fig. 7 is the perspective view that single electrode is installed sheath among Fig. 1.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Shown in Figure 1, be main TV structure synoptic diagram of the present utility model.As we know from the figure, be provided with liquid in horizontally disposed closed cleaning collection box 1 front side and detect groove 2, liquid detects to flow in the groove 2 liquid that need detect in process of production.Displacement assembly bracket 5 by being fixedly connected with the case face on clean collection box 1 is provided with two groups of displacement assembly A, B; Because the structure of displacement assembly A, B is identical, just the sequential difference of working under the control of controller gets final product so following the structure to displacement assembly A describes.Two ends, the left and right sides on cleaning collection box 1 also are respectively equipped with and clean cleaning fluid interpolation mouth 4 and cleaning fluid discharge operation valve handle 18 that collection box communicates.Displacement assembly A comprises displacement assembly installing plate 7, motor 6, cog 9, driving gear 11, lower gear 14, top offset pole 10, bottom offset pole 15, displacement connecting rod 13 and electrode are installed sheath 17; Wherein, motor 6, cog 9 and lower gear 14 be positioned on the installing plate 7, driving gear 11 is fixedlyed connected with the output shaft of motor 6, and with cog 9 and lower gear 14 be meshed.The opposite flank that the lateral surface of displacement connecting rod 13 and electrode are installed sheath 17 is fixedly connected, and installs on the sheath 17 at electrode and is provided with one/a plurality of electrode hold-doun nuts 16.Detect in groove 2 or the electrode cleaning position in order to make electrode displacement can accurately be parked in liquid, be arranged with limit switch 8 on the installing plate 7 of 9 moving radius processes that cogs, it is connected with controller by line, the position that control driven by motor electrode moves.

Shown in Figure 2, be that the sectional structure synoptic diagram is looked on the right side of Fig. 1.As can be seen from FIG., driving gear 11 with cog 9 and lower gear 14 be meshed on a plane and straight line, one end of top offset pole 10 and bottom offset pole 15 respectively with cog 9, lower gear 14 off-centre are fixedly connected, the other end connects with the two ends activity of displacement connecting rod 13 by flexibly connecting axle 12 respectively.The electrode 3 that is installed on the electrode installation sheath 17 sees through the electrode detection hole that collection box 1 is provided with, and reaches liquid and detects in the liquid detected in the groove 2.Described electrode is installed sheath 17 can install one or many electrodes 3 simultaneously, and every electrode is used to detect different parameters, and as the pH value of first electrode survey liquid, second electrode is surveyed the conductivity of liquid, and third electrode is surveyed the concentration of liquid etc.On the left and right sides face that cleans collection box 1, be provided with glass visor 23, be used to observe the cleaning situation of electrode 3 and clean the height of liquid level.Be provided with liquid pump 24 and the electrode cleaning fluid 25 that is used for cleaning electrode 3 in cleaning collection box 1, liquid pump 24 wherein is communicated with electrode cleaning assembly 21 by cleaning connecting pipe 22.Electrode cleans assembly 21 and is provided with two spaced electrode cleaning positions 19, and the top of each cleaning position is corresponding with the clean-out opening that electrode enters.The inner peripheral of each cleaning position 19 is provided with a plurality of spray orifices 20 that face toward electrode from different perspectives.Electrode clean assembly 21 by web member with clean collection box 1 and fixedly connected the location, the cleaning fluid of cleaning fluid 25 above cleaning collection box 1 adds mouth 4 injections, its liquid level 26 generally is higher than liquid pump 24 and is lower than electrode cleaning position 19.Cleaning fluid 25 simultaneously to electrode 3 carries out jet cleaning from different angles by the effect of liquid pump 24 in electrode cleaning position 19.

Shown in Figure 3, be three-dimensional sectional structure synoptic diagram of the present utility model.Above the cleaning collection box 1 in the drawings, be provided with and the corresponding electrode detection of the displacement of electrode 3 hole 32 and clean-out opening 33.Under the control of controller, electrode 3 sees through electrode detection hole 32 and extend into liquid and detect in the liquid detected in the groove 2, has once surveyed rear electrode 3 displacements and has extend in the electrode cleaning position 19 in the electrode cleaning assembly 21 through clean-out opening 33 and clean.Also can see in the drawings, be provided with electrode lead hole 34, be used for the extraction electrode signal wire and be connected, measure the relevant parameter of liquid with parametric detector at the center of electrode hold-doun nut 16.Also be provided with the heated constant temperature control device of cleaning fluid 25 in cleaning collection box 1 by the liquid pump 24, described cleaning fluid 25 heated constant temperature control device comprise heating plate 28 on the mounting bracket 29 and the temperature sense gauge tap 27 on support 29 1 ends.Temperature sensor signal is handled by controller, as required cleaning fluid is heated constant in the temperature that is more conducive to the electrode maintenance.On case 1, be provided with cleaning fluid and discharge operation valve handle 18, be located at the discharge operation valve 30 of case bottom by valve rod control.Like this, the cleaning fluid of cleaning fluid 25 above case 1 adds mouthful 4 injections, discharges old cleaning fluid by discharging operation valve handle 18 from the discharge operation valve 30 of case bottom.End at liquid pump 24 also is provided with filter washing water inlet 31.Succinct for drawing, the cleaning fluid 25 that cleans in the collection box 1 among the figure does not draw.

Shown in Figure 4, be the three-dimensional structure for amplifying synoptic diagram that electrode cleans assembly among Fig. 2, Fig. 5 be Fig. 4 electrode clean assembly analyse and observe the structure for amplifying synoptic diagram, two figure are in conjunction with more being well understood to the structure that electrode cleans assembly.The main body that electrode cleans assembly 21 is the oblong bulk, wherein is provided with two electrode cleaning positions 19 of cylinder hole shape at interval, and the periphery of 19 inboards, electrode cleaning position is provided with a plurality of spray orifices 20 that face toward electrode from different perspectives; Be provided with cleaning fluid siphunculus 35 at the interval of two cylindrical holes, the upper end of this siphunculus 35 be located at main body oblong bulk in the ring two electrode cleaning positions 19 cleaning liquid bath 36 communicate, spray orifice 20 also communicates with this cleaning liquid bath 36.The lower end of cleaning fluid siphunculus 35 communicates with liquid pump 24 by cleaning connecting pipe 22.When liquid pump 24 work, cleaning fluid is entered by inlet 31, from spray orifice 20 ejections of 19 inboards, electrode cleaning position, electrode 3 is cleaned, and falls then and cleans in the collection box 1.

Shown in Figure 6, multi-electrode is installed the perspective view of sheath among Fig. 1.In multi-electrode installation sheath 17, be provided with a plurality of electrode holes 36 and these electrode contact holes 37 above electrode hole 36 of answering with electrode pair.Be threaded hole 38 above the electrode contact hole 37, be used to install the electrode hold-doun nut 16 of each electrode 3.Each electrode 3 is installed in the electrode contact hole 37 by electrode contact 40, and electrode 3 passes sheath 17 from the lower end of electrode hole 36, and electrode hold-doun nut 16 is enclosed within electrode contact 40 and is threaded in the above and with threaded hole 38; The signal extension line 39 of electrode is drawn from the electrode lead hole 34 of nut 16, is connected with parametric detector.

Shown in Figure 7, be the perspective view that single electrode is installed sheath among Fig. 1.As we know from the figure, the structure that this single electrode is installed sheath is identical with the matrix of Fig. 6, and different just single electrodes is installed on the sheath 17a and only is provided with an electrode hole 36 and electrode contact hole 37, and respective threads hole 38 and electrode hold-doun nut 16.

Described potential electrode 3, cleaning fluid 25, controller and parametric detector, and limit switch 8 and liquid pump 24 be prior art and product, or those skilled in the art makes according to the need and possibility.

Principle of work of the present utility model is as follows:

Add mouth 4 from cleaning fluid cleaning fluid is injected in the cleaning collection box 1, the liquid level 26 of cleaning fluid is higher than the liquid inlet 31 of liquid pump 24, is lower than electrode and cleans assembly 21.Can see the liquid level and the cleaning situation of cleaning fluid from the clear glass 23 of both sides.Connect the power supply of controller and parametric detector, the electrode that controller is controlled on the displacement assembly A in regular turn produces displacement, electrode 3 is seen through the electrode detection hole of cleaning above the collection box 1 32 to extend into liquid and detects in the liquid detected in the groove 2 liquid is measured, the information that obtains is drawn by the electrode signal extension line 39 of electrode upper end, is defeated by parametric detector by line; Electrode on the simultaneous displacement assembly B produces displacement, sees through corresponding clean-out opening and extend into electrode and clean in the electrode cleaning position 19 in the assembly 21 and clean.Electrode on the displacement assembly B clean finish, behind the electrode follow procedure work certain hour on the displacement assembly A, electrode on the controller control displacement assembly B produces displacement, the electrode detection hole that electrode see through is cleaned the correspondence above the collection box 1 extend into liquid and detects in the liquid detected in the groove 2 liquid is measured, the information that obtains is drawn by the electrode signal extension line of electrode upper end, is defeated by parametric detector.Then, electrode on the displacement assembly A produces displacement, sees through corresponding clean-out opening and extend into electrode and clean in the electrode cleaning position 19 in the assembly 21 and clean.Electrode on the displacement assembly A clean finish, behind the electrode follow procedure work certain hour on the displacement assembly B, electrode on the displacement assembly A produces displacement, extend in the liquid detected in the liquid detection groove 2 liquid is measured, then, electrode on the displacement assembly B produces displacement ... the electrode on displacement assembly A, the B replaces displacement, circularly to the liquid on production line measure, cleaning electrode, constantly obtain the instant parameter of online each period of liquid, thereby reach the purpose of detection.Electrode 3 is being measured the dirt that liquid produces, after electrode displacement is in the electrode cleaning position 19,24 work of controller control liquid pump, cleaning fluid is cleaned a plurality of from different perspectives facing to there being pressure ground to spray in the spray orifice 20 of electrode the assembly 21 from electrode, can rinse the dirt on the electrode well, guarantee the accuracy of electrode measurement.Fall back after cleaning fluid cleans electrode in the cleaning collection box 1, recycle,, then control cleaning fluid and discharge operation valve handle 18, open the operation valve 30 on the case bottom surface, drain waste liquid if need the cleaning fluid that cleans in the collection box 1 is discharged.And, in order further to guarantee wash degree, be more conducive to guard electrode to electrode, cleaning collection box 1 cleaning liquid inside heating constant-temperature system, as required cleaning fluid is heated constant in the temperature that is being more conducive to electrode cleaning and maintenance.Make measurement mechanism reliable operation of the present utility model, the measuring accuracy height.

Claims (5)

1. bipolar electrode liquid multiparameter on-line measurement device, it comprises that liquid detects groove, parameter measurement electrode, electrode cleaning fluid, controller and parametric detector, is characterized in that also comprising:

An outer side is provided with described liquid and detects groove (2), in be provided with and comprise electrode cleaning fluid (25) and scavenging pump (24), be provided with the closed cleaning collection box (1) of two pairs of parameter measurement electrode detection holes (32) and clean-out opening (33) above, detection hole (32) wherein is located at liquid, and to detect the top of groove (2) corresponding with it, and casing is horizontally disposed with;

Be located at above the described cleaning collection box (1), mainly by one or many parameter measurement electrodes (3) are installed, and the electrode that can make parameter measurement electrode (3) produce displacement is installed the identical potential electrode displacement assembly (A, B) of two groups of structures that sheath (17) constitutes; Wherein, two rest points of potential electrode (3) displacement are respectively with to be located at the detection hole (32) and the clean-out opening (33) that clean on collection box (1) face separately corresponding;

Be located at the electrode that described cleaning collection box (1) is interior, the below of clean-out opening (33) comprises two spacing parameter potential electrode cleaning positions (19) and clean assembly (21), corresponding respectively clean-out opening (33) and the electrode (3) separately in two electrode cleaning positions (19) wherein, the inner peripheral of each cleaning position (19) is provided with a plurality of spray orifices (20) that face toward electrode (3) from different perspectives;

Be located at cleaning fluid (25) the heated constant temperature control device in the described cleaning collection box (1).

2. bipolar electrode liquid multiparameter on-line measurement device according to claim 1 is characterized in that:

Described electrode displacement assembly (A/B) comprises installing plate (7), motor (6), cog (9), driving gear (11), lower gear (14), top offset pole (10), bottom offset pole (15), displacement connecting rod (13) and electrode installation sheath (17); Wherein, motor (6), cog (9) and lower gear (14) is positioned on the installing plate (7), driving gear (11) is fixedlyed connected with the output shaft of motor (6), and is meshed on a plane and straight line with cog (9) and lower gear (14); One end of top offset pole (10) and bottom offset pole (15) is fixedly connected with cog (9), lower gear (14) off-centre respectively, and the other end connects with the two ends of displacement connecting rod (13) are movable respectively; The side that the lateral surface of displacement connecting rod (13) and electrode are installed sheath (17) is fixedly connected.

3. bipolar electrode liquid multiparameter on-line measurement device according to claim 1 is characterized in that:

Described electrode cleans assembly (21) and comprises two electrode cleaning positions (19) of cylinder hole shape at interval, be provided with the cleaning liquid bath (36) that communicates around two electrode cleaning positions (19), electrode cleaning position (19) inboard periphery is provided with a plurality of spray orifices (20) that face toward electrode (3) and communicate with cleaning liquid bath (36) from different perspectives; Be provided with cleaning fluid siphunculus (35) on the interval of two electrode cleaning positions (19) cylindrical hole, the upper end of this siphunculus (35) communicates with cleaning liquid bath (36), and the lower end is communicated with liquid pump (24) by cleaning connecting pipe (22).

4. bipolar electrode liquid multiparameter on-line measurement device according to claim 1 is characterized in that:

Described cleaning fluid (25) heated constant temperature control device comprises heating plate (28) on the mounting bracket (29) and the temperature sense gauge tap (27) on support (29) one ends.

5. Bielectrode liquid parameter on-line measuring device according to claim 1 is characterized in that:

Described potential electrode is installed sheath (17) and is provided with one or more electrode holes (36) corresponding with electrode (3) and the electrode contact hole (37) above the electrode hole (36), is that threaded hole (38) is corresponding with the electrode hold-doun nut (16) of installing electrodes above electrode contact hole (37); The centre of the solid nut (16) of electrode is provided with electrode lead hole (34).

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