CN1793887A - On-line full automatic sodium ion concentration analyzer - Google Patents
On-line full automatic sodium ion concentration analyzer Download PDFInfo
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- CN1793887A CN1793887A CN 200510119092 CN200510119092A CN1793887A CN 1793887 A CN1793887 A CN 1793887A CN 200510119092 CN200510119092 CN 200510119092 CN 200510119092 A CN200510119092 A CN 200510119092A CN 1793887 A CN1793887 A CN 1793887A
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- sodium ion
- ion concentration
- concentration analyzer
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- 229910001415 sodium ion Inorganic materials 0.000 title claims abstract description 46
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 230000002572 peristaltic effect Effects 0.000 claims description 20
- 230000005477 standard model Effects 0.000 claims description 15
- 230000003113 alkalizing effect Effects 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 239000002699 waste material Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 238000013019 agitation Methods 0.000 claims description 9
- 239000008151 electrolyte solution Substances 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 18
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 8
- 239000003792 electrolyte Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 230000008569 process Effects 0.000 description 12
- 238000009792 diffusion process Methods 0.000 description 7
- 229920002379 silicone rubber Polymers 0.000 description 6
- 230000004044 response Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- PQZTVWVYCLIIJY-UHFFFAOYSA-N diethyl(propyl)amine Chemical compound CCCN(CC)CC PQZTVWVYCLIIJY-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Automatic Analysis And Handling Materials Therefor (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
An on-line automatic concentration analyzer of sodium ion is prepared as connecting sodium ion electrode in measurement pool, reference electrode connected with electrolyte box and temperature electrode to secondary intelligent instrument with remote communication control interface; setting sample constant level groove at any position higher then height of measurement pool; connecting said groove, alkalization reagent kit of constant voltage type in controllable timing injection mode and standard sample box with sample A and B to measurement pool through their own control valve and connecting said valves to said intelligent instrument
Description
Technical field
The present invention relates to online sodium ion concentration analyzer, is a kind of on-line Full sodium ion concentration analyzer.
Background technology
Monitor main steam, condensate water in the steam circulation system of the heat power equipment in fuel-burning power plant and heat energy supply station in real time, Na ion concentration in the boiler feedwater guarantees that heat power equipment safety, economical operation have crucial meaning.
In addition, the inefficacy endpoint monitoring and the control that prepare the base exchanger operation in the equipment as the demineralized water of boiler feedwater, monitor this exchanger water Na ion concentration with sodium ion concentration analyzer, confirm that the end of run is the technological means of the most direct science.
In traditional online sodium ion concentration analyzer, be electrode with the sodium selective electrode all, but the response of this electrode is subjected to H
+Interference, for overcoming H
+To measuring N a
+Interference, usually the silicon rubber pipe of placing a good permeability in the sampling stream is as anemostat, makes organic basic reagent (as the diethyl propylamine) molecule of high volatility see through silicon rubber tube wall and enters in the sample, improves the pH value of sample, reaches control H
+The purpose of disturbing claims this method to be the diffusion alkalization method usually; The scaling method of traditional instrument is the sodion titer by two kinds of debita spissitudos of artificial preparation, respectively standard specimen is injected in the measuring cell quantitatively with transfer pipet, sodium selective electrode converts titer to corresponding mv signal, microprocessor processes in secondary instrument is finished the demarcation of instrument.Because traditional online sodium ion concentration analyzer adopts diffusion alkalization method and artificial scaling method, carry out execute-in-place according to the program of secondary instrument setting and realize what online Na ion concentration was analyzed, it is long to exist the running time, measuring accuracy is poor, can not realize robotization, particularly can not realize deficiencies such as network virtual spectrum analyst management.
Summary of the invention
The objective of the invention is the online sodium ion concentration analyzer of conventional diffusion alkalization method and scaling method is carried out substantial improvement, the secondary intelligence instrument of telecommunication control interface will be had in the prior art, electrode, operation valve, the patent No. of Guangda Power Equipment LLC, Jilin City is: ZL02274364.2, name is called " constant-voltage controllable timing injection apparatus ", the patent No. is: ZL02209645.0, name is called " self-stripping unit that online water turbidity measuring instrument detects " and volume pump or peristaltic pump etc. organically make up, can make the technical characterictic of each combination interactional on function, reach full-automatic, safeguard few, long service life, the measuring accuracy height can be used for Site Test Analysis, can realize the online sodium ion concentration analyzer of network virtual spectrum analyst management again.
Realize that the technical scheme that the object of the invention adopted is: a kind of on-line Full sodium ion concentration analyzer, its special character is, it comprises measuring cell 15, at the built-in sodium ion electrode 18 of measuring cell 15, contrast electrode 16 and temperature electrode 17 all are electrically connected with the secondary intelligence instrument 6 with telecommunication control interface 5, contrast electrode 16 is connected with additional electrolytic solution box 4, surpassing the permanent position of the sample liquid level groove 19 that high position, measuring cell 15 ponds is provided with, alkalizing agent box 3 is injected in the controlled timing of constant pressure type, all operation valve 1a by separately of standard model box 7 and 8 are injected in the controlled timing of the constant pressure type of standard specimen A and standard specimen B, 2b, 10c, 9d is connected with measuring cell 15, operation valve 1a, 2b, 10c, 9d is electrically connected with the secondary intelligence instrument 6 with telecommunication control interface 5.Or the standard model bottle 24 of the alkalizing agent bottle 23, standard specimen A and the standard specimen B that are provided with 25 all the volume pump by separately or peristaltic pump 22a, 26b, 27c be connected with measuring cell 15, volume pump or peristaltic pump 22a, 26b, 27c and the secondary intelligence instrument 6 with telecommunication control interface 5 are electrically connected.Or sample liquid is passed through volume pump or peristaltic pump 28e is connected with measuring cell 15, and volume pump or peristaltic pump 28e are electrically connected with the secondary intelligence instrument 6 with telecommunication control interface 5.Bottom at measuring cell 15 is provided with stirrer, and the structure of described stirrer is, in measuring cell 15 bottom inside magnetic stir bar 14 is set, and in measuring cell 15 bottom outside magnetic agitation motor 13 is set.In described measuring cell 15, be provided with U trap 11.Be provided with described measuring cell 15 in the waste discharge operation valve 12f that is connected, waste discharge operation valve 12f is electrically connected with the secondary intelligence instrument 6 with telecommunication control interface 5.
On-line Full sodium ion concentration analyzer of the present invention is compared the advantage applies that is had with the online sodium ion concentration analyzer of traditional diffusion alkalization and scaling method and is existed:
1. used silicon rubber anemostat is immersed in the strong basicity reagent in the diffusion alkalization method that traditional online sodium ion concentration analyzer adopts, and serviceable life is short, changes frequently, need shut down and safeguard when changing anemostat, has both increased maintenance cost, and is time-consuming again.And on-line Full sodium ion concentration analyzer of the present invention adopts the controlled timing of constant pressure type to inject the alkalizing agent method, or volume pump directly is injected into alkaline reagent in the sample liquid, more than two kinds of methods be non-maintaining parts in the operating period, long service life.
2. the physical dimension of used silicon rubber anemostat is certain in the diffusion alkalization method that traditional online sodium ion concentration analyzer adopts, the amount that alkaline reagent is diffused in the sample will be along with the carrying out of diffusion, alkaline reagent density loss and silicon rubber anemostat aging and reducing gradually, this drift slowly will cause the drift of secondary instrument measured value to increase, and the drift of secondary instrument measured value increase is can't find and can't eliminate for the user.And the alkalizing agent method is injected in the controlled timing of the constant pressure type of the on-line Full sodium ion concentration analyzer of the present invention or volume pump is injected into sample with the alkaline reagent of a certain amount of same concentration directly and accurately, can not produce above-mentioned phenomenon.
3. traditional online sodium ion concentration analyzer, when measuring the sample of different PH and different Na ion concentrations, need to change the silicon rubber anemostat of different diffusivities, have only in this case and select for use the anemostat of various geometric (length, diameter, thickness) just can meet the demands again.And the on-line Full sodium ion concentration analyzer of the present invention only needs the operation valve b of control reagent in the modification secondary intelligence instrument or the service time of volume pump or peristaltic pump just can satisfy performance requirement, and is easy to realize the self-adaptation adjusting.
4. though adopt manually-operated also can implement the scaling method of various patterns in traditional online sodium ion concentration analyzer, its shortcoming is that the people need carry and demarcates with transfer pipet and standard specimen liquid to on-the-spot, the procedure operation of setting according to secondary instrument.And the scaling method of the on-line Full sodium ion concentration analyzer of the present invention can be realized on-site proving, also can realize the remote auto demarcation by the secondary intelligence instrument with telecommunication control interface.
5. the on-line Full sodium ion concentration analyzer of the present invention has full-automation, the measuring accuracy advantages of higher.Site Test Analysis can be used for, the network virtual spectrum analyst management can be realized again.
Description of drawings
Fig. 1 is the on-line Full sodium ion concentration analyzer structural representation of embodiment 1.
Fig. 2 is the on-line Full sodium ion concentration analyzer structural representation of embodiment 2.
Fig. 3 is the on-line Full sodium ion concentration analyzer structural representation of embodiment 3.
Among the figure: 1a, 2b, 10c, 9d operation valve, the alkalizing agent box is injected in the controlled timing of 3 constant pressure types, and 4 replenish electrolytic solution box, 5 telecommunication control interfaces, 6 secondary intelligence instruments, 7, standard model box, 11 U traps, 12f waste discharge operation valve are injected in the controlled timing of 8 constant pressure types, 13 magnetic agitation motors, 14 magnetic stir bars, 15 measuring cells, 16 contrast electrodes, 17 temperature electrodes, 18 sodium ion electrodes, the permanent position of 19 sample liquid levels groove, 20 detected water sample, 21 overflow water samples, 22a, 26b, 27c, 28e volume pump or peristaltic pump, 23 alkalizing agent bottles, 24,25 standard model bottles.
Embodiment
The invention will be further described to utilize drawings and Examples below.
Embodiment 1: with reference to Fig. 1, on-line Full sodium ion concentration analyzer, its special character is, it comprises measuring cell 15, at the built-in sodium ion electrode 18 of measuring cell 15, contrast electrode 16 and temperature electrode 17 all are electrically connected with the secondary intelligence instrument 6 with telecommunication control interface 5, contrast electrode 16 is connected with additional electrolytic solution box 4, surpassing the permanent position of the sample liquid level groove 19 that high optional position, measuring cell 15 ponds is provided with, alkalizing agent box 3 is injected in the controlled timing of constant pressure type, all operation valve 1a by separately of standard model box 7 and 8 are injected in the controlled timing of the constant pressure type of standard specimen A and standard specimen B, 2b, 10c, 9d is connected with measuring cell 15, operation valve 1a, 2b, 10c, 9d is electrically connected with the secondary intelligence instrument 6 with telecommunication control interface 5.Bottom at measuring cell 15 is provided with stirrer, and the structure of described stirrer is, in measuring cell 15 bottom inside magnetic stir bar 14 is set, and in measuring cell 15 bottom outside magnetic agitation motor 13 is set.In described measuring cell 15, be provided with U trap 11.Be provided with described measuring cell 15 in the waste discharge operation valve 12f that is connected, waste discharge operation valve 12f is electrically connected with the secondary intelligence instrument 6 with telecommunication control interface 5.
Embodiment 2: with reference to Fig. 2, the on-line Full sodium ion concentration analyzer of embodiment 2 and the structure of embodiment 1 are basic identical, institute's difference only is: the standard model bottle 24 of the alkalizing agent bottle 23 of setting, standard specimen A and standard specimen B with 25 all the volume pump by separately or peristaltic pump 22a, 26b, 27c be connected with measuring cell 15, volume pump or peristaltic pump 22a, 26b, 27c and the secondary intelligence instrument 6 with telecommunication control interface 5 are electrically connected.With alkalizing agent bottle 23, volume pump or peristaltic pump 22a replace being used among the embodiment 1 the controlled timing of constant pressure type and inject alkalizing agent box 3 and operation valve 2b.The standard model bottle 24 of standard specimen A and standard specimen B and 25 replaces the controlled timing of constant pressure type of standard specimen A and standard specimen B to inject standard model box 8 and 7.Replace operation valve 9d, 10c with volume pump or peristaltic pump 26b, 27c.Operation and the stand-by time of control circuit control volume pump in the secondary intelligence instrument 6 or peristaltic pump 22a, 26b, 27c can be finished the accurate injection of water sample alkalization and standard model equally.Can finish the measurement and the calibrating function of instrument equally.
Embodiment 3: with reference to Fig. 3, the on-line Full sodium ion concentration analyzer of embodiment 3 and the structure of embodiment 2 are basic identical, institute's difference only is: or sample liquid is passed through volume pump or peristaltic pump 28e is connected with measuring cell 15, and volume pump or peristaltic pump 28e are electrically connected with the secondary intelligence instrument 6 with telecommunication control interface 5.
The structure of volume pump or peristaltic pump 22a, 26b, 27c and 28e is identical, selects commercially available precision metering pump or peristaltic pump for use.
With reference to Fig. 1, be that example describes measurement and calibration process in detail with embodiment 1.
One, measuring process:
Detected water sample 20 enters the permanent position of water sample groove 19, make the water sample sample enter measuring cell 15 through operation valve 1a, sampling amount is opened the time decision of sample with operation valve 1a by the secondary intelligence instrument 6 with telecommunication control interface 5, enter water sample unnecessary in the groove 19 of permanent position and discharged by overflow 21, liquid level is constant in the maintenance tank.Reagent injects alkaline reagent box 3 with operation valve 2b, the controlled timing of constant pressure type and has the constant-voltage controllable timing injection apparatus of the secondary intelligence instrument 6 control circuits composition alkaline reagent of telecommunication control interface 5, control reagent is used the service time of operation valve 2b, reach the injection rate IR of suitable alkaline reagent, finish appropriate regulation sample P H value.Be equipped with below the measuring cell 15 by stirring the stirrer that magneton 14 and magnetic agitation motor 13 are formed, the stirring magneton 14 of stirrer is under the drive of magnetic agitation motor 13, the alkaline reagent and the water sample that inject in the measuring cell 15 are mixed, and mixing time is had the control circuit of the secondary intelligence instrument 6 of telecommunication control interface 5 and is controlled.Set as required.The Na that in measuring cell 15, is provided with
+ Ion electrode 18, contrast electrode 16 and temperature electrode 17 are connected with the secondary intelligence instrument 6 with telecommunication control interface 5 by signal wire, secondary intelligence instrument 6 is handled Na ion concentration and the corresponding electrical signal detection of temperature, demonstration, temperature compensation etc., and by 5 pairs of signal outputs of telecommunication control interface, input enforcement operation and remote monitoring.Waste liquid after measurement is finished in the measuring cell 15 is discharged by waste discharge operation valve 12f, after finishing one-shot measurement, under the control of secondary intelligence instrument 6, carry out and clean with telecommunication control interface 5, do not add alkaline reagent in the cleaning process, utilize water sample to clean, cleaning process and measuring process are similar, and just secondary intelligence instrument 6 does not adopt electrode signal, keeps the former display result that measures.Above process is gone round and begun again, and finishes real-time monitoring.
Two, calibration process: the constant-voltage controllable timing injection apparatus of standard model box 7 and operation valve 10c composition standard specimen A is injected in standard specimen A, the controlled timing of constant pressure type.The constant-voltage controllable timing injection apparatus of the operation valve 9d composition standard specimen B of standard model box 8, standard specimen B is injected in standard specimen B, the controlled timing of constant pressure type.The control program of calibration process depends on the scaling method pattern that instrument adopts, and utilizes standard specimen A and B two cover constant-voltage controllable timing injection apparatus, can implement the demarcation of various patterns.
1. 2 calibration mode:
Finish and after waste discharge operation valve 12f closes in waste discharge, the standard specimen A that the controlled timing of constant pressure type is injected in the standard model box 7 injects measuring cell 15 appropriate amounts by standard specimen with operation valve 10c, the magnetic agitation motor 13 of turn on agitator, stirring magneton 14 stirs, clean measuring cell 15 and two electrode appropriate times with standard specimen A, open waste discharge operation valve 12f, close general repeated washing 3 times after draining cleaning fluid.Standard specimen A injects measuring cell 15 appropriate amounts by standard specimen with operation valve 10c, alkaline reagent injects measuring cell 15 appropriate amounts by reagent with operation valve 2b, the magnetic agitation motor 13 of turn on agitator, stir magneton 14 with standard specimen A and alkaline reagent mixing, secondary intelligence instrument 6 is measured the potential value and the standard specimen temperature value of standard specimen A correspondence.And deposit in secondary intelligence instrument 6 microprocessors.The same process is measured the potential value and the temperature value of standard specimen B correspondence, and is stored.The Na ion concentration value of known standard specimen A, standard specimen B has been set in the computing formula of instrumental calibration.Secondary intelligence instrument 6 microprocessors can solve the real response slope and the intercept of electrode response curve required when measuring, and call during for measurement.
2. secondary standard additive process calibration mode
Water sample in the groove 19 of the permanent position of water sample injects detected water sample by operation valve 1a and only produces siphon until U trap 11 in measuring cell 15, secondary intelligence instrument 6 is measured corresponding current potential and temperature, and storage, in measuring cell 15, inject the standard specimen A set amount of concentration known again, the magnetic agitation motor 13 of turn on agitator, stirring magneton 14 mixes the standard specimen A of water sample and injection, and secondary intelligence instrument 6 is measured the current potential and the storage of mixed liquor correspondence.The last standard specimen B set amount that in measuring cell 15, injects concentration known again, stirring magneton 14 will inject standard specimen 2 and mixed liquor mixes, and secondary intelligence instrument 6 is measured the potential value and the storage of secondary mixed liquor correspondence.The microprocessor of secondary intelligence instrument 6 is found the solution electrode response slope of a curve and intercept and storage when obtaining measuring according to the equation of secondary standard additive process scaling method, calls when measuring fully.
Claims (6)
1. on-line Full sodium ion concentration analyzer, it is characterized in that: it comprises measuring cell (15), at the built-in sodium ion electrode (18) of measuring cell (15), contrast electrode (16) and temperature electrode (17) all are electrically connected with the secondary intelligence instrument (6) with telecommunication control interface (5), contrast electrode (16) is connected with additional electrolytic solution box (4), surpassing the permanent position of the sample liquid level groove (19) that high position, measuring cell (15) pond is provided with, alkalizing agent box (3) is injected in the controlled timing of constant pressure type, all operation valve (1a by separately of standard model box (7) and (8) are injected in the controlled timing of the constant pressure type of standard specimen A and standard specimen B, 2b, 10c, 9d) be connected operation valve (1a with measuring cell (15), 2b, 10c, 9d) be electrically connected with secondary intelligence instrument (6) with telecommunication control interface (5).
2. on-line Full sodium ion concentration analyzer according to claim 1, it is characterized in that: or the standard model bottle (24) of the alkalizing agent bottle (23), standard specimen A and the standard specimen B that are provided with and (25) all volume pump or the peristaltic pump (22a, 26b, 27c) by separately be connected with measuring cell (15), volume pump or peristaltic pump (22a, 26b, 27c) are electrically connected with the secondary intelligence instrument (6) with telecommunication control interface (5).
3. on-line Full sodium ion concentration analyzer according to claim 1, it is characterized in that: or sample liquid is passed through volume pump or peristaltic pump (28e) is connected with measuring cell (15), and volume pump or peristaltic pump (28e) are electrically connected with the secondary intelligence instrument (6) with telecommunication control interface (5).
4. on-line Full sodium ion concentration analyzer according to claim 1, it is characterized in that: the bottom at described measuring cell (15) is provided with stirrer, the structure of described stirrer is, in measuring cell (15) bottom inside magnetic stir bar (14) is set, magnetic agitation motor (13) is set in measuring cell (15) bottom outside.
5. on-line Full sodium ion concentration analyzer according to claim 1 is characterized in that: be provided with U trap (11) in described measuring cell (15).
6. on-line Full sodium ion concentration analyzer according to claim 1, it is characterized in that: be provided with the waste discharge operation valve (12f) that is connected with described measuring cell (15), waste discharge operation valve (12f) is electrically connected with the secondary intelligence instrument (6) with telecommunication control interface (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101190926A CN100420942C (en) | 2005-12-17 | 2005-12-17 | On-line full automatic sodium ion concentration analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101190926A CN100420942C (en) | 2005-12-17 | 2005-12-17 | On-line full automatic sodium ion concentration analyzer |
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| Publication Number | Publication Date |
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| CN1793887A true CN1793887A (en) | 2006-06-28 |
| CN100420942C CN100420942C (en) | 2008-09-24 |
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| CNB2005101190926A Expired - Fee Related CN100420942C (en) | 2005-12-17 | 2005-12-17 | On-line full automatic sodium ion concentration analyzer |
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| CN102192934A (en) * | 2011-05-24 | 2011-09-21 | 河海大学常州校区 | Online sodium ion concentration analysis recorder |
| CN102230858A (en) * | 2011-06-10 | 2011-11-02 | 安徽省电力科学研究院 | On-line testing method for sodium analyzer |
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