CN203606315U - Portable water quality hardness detection device - Google Patents
Portable water quality hardness detection device Download PDFInfo
- Publication number
- CN203606315U CN203606315U CN201320624760.0U CN201320624760U CN203606315U CN 203606315 U CN203606315 U CN 203606315U CN 201320624760 U CN201320624760 U CN 201320624760U CN 203606315 U CN203606315 U CN 203606315U
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- Prior art keywords
- electrode
- sensitive membrane
- detection device
- water quality
- portable water
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- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 claims abstract description 23
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- 239000012528 membrane Substances 0.000 claims description 58
- 238000004891 communication Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 239000013543 active substance Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 5
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 229910001425 magnesium ion Inorganic materials 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical group OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011545 laboratory measurement Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 239000012482 calibration solution Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000011132 hemopoiesis Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses a portable water quality hardness detection device which comprises a detection signal processing device as well as a water hardness composite electrode, wherein the water hardness composite electrode is connected with the detection signal processing device through data and comprises an electrode rod, an inner electrode tube, an electrode measuring head, a reference electrode and a temperature sensor; the inner electrode tube penetrates into the electrode rod; the electrode measuring head is detachably arranged at an extended end of the inner electrode tube in a sealed manner; the extended end of the inner electrode tube extends out from the electrode rod; the reference electrode is arranged inside a reference electrode chamber between the electrode rod and the inner electrode tube; the reference electrode chamber is filled with electrolyte with high concentration; the temperature sensor penetrates into the electrode rod; a measuring end stretches out from the electrode rod. The device is simple in structure and convenient to use, capable of measuring the hardness of water on a production site or in a laboratory, and is high in measurement precision.
Description
Technical field
The utility model relates to a kind of water hardness detection device, particularly a kind of portable water quality rigidity detection device.
Background technology
The water hardness refers to the total amount of calcium in water sample, magnesium ion, if the much higher hard of water quality will exert an influence to health, the water of long-term drinking high rigidity, can cause the pathology of the systems such as cardiovascular, neural, uropoiesis and hematopoiesis; Also have harm to producing and living.
What the mensuration water hardness was conventional at present is EDTA volumetric precipitation method, technology and the experience of the method to operator requires very high, easily produce larger error, and be not suitable for testing in muddy and coloured water sample, adopt the test of electrode method can avoid the deficiency of said method, make water hardness test become a thing easily.
Ion-selective electrode is that one has optionally indicator electrode for certain specific ion, such electrode has the special electrode film of one deck, electrode film has selective response to specific ion, relation between the current potential of electrode film and ion concentration to be measured meets nernst equation, have that selectivity is good, equilibration time is short, the features such as equipment is simple, easy to operate.
The water hardness detects and analyzes is an important process of water analysis, have influence on public production, living safety, but assay method majority be that experimental determination is more, on-the site analysis is little, traditional water hardness analytical approach, at analysis efficiency, has some limitation in analysis ability, the application in Complex water body system anlysis is still subject to certain restrictions; By analytical approach microminiaturization, integrated, robotization and the further analytical performance of method for improving of commercialization, be conducive to popularizing of analytical technology.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of simple in structure, easy to use, measuring accuracy is high, and is convenient to user in production scene or a kind of portable water quality rigidity detection device of laboratory measurement water hardness.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of portable water quality rigidity detection device, comprises detection signal treating apparatus; Described pick-up unit also comprises water hardness combination electrode, and described water hardness combination electrode and detection signal treating apparatus data are joined, and it comprises:
One electrode stem;
One electrode inner tube, described electrode inner tube is located in electrode stem;
One electrode measurement head, the dismountable sealing of described electrode measurement head is arranged on the external part that electrode inner tube stretches out from electrode stem;
One contrast electrode, described contrast electrode is arranged in the contrast electrode chamber between electrode stem and electrode inner tube, and in contrast electrode chamber, is full of the electrolyte of high concentration;
One temperature sensor, described temperature sensor is located in electrode stem, and measuring junction stretches out from electrode stem.
In an embodiment of the present utility model, described detection signal treating apparatus is secondary instrument, comprises intelligent controller, high-impedance amplifier, temperature meter, display and computer communication device; Described intelligent controller connects respectively high-impedance amplifier, temperature meter, display and computer communication device.
In an embodiment of the present utility model, described electrode measurement head is made up of sensitive membrane seat, sensitive membrane cap and sensitive membrane, and described sensitive membrane seat comprises small end and large end, and described small end is link, coordinate with electrode inner tube, the root of link is provided with O-ring seal; Described sensitive membrane is placed on the large end of sensitive membrane seat, and described sensitive membrane cap sleeve is located on the large end of sensitive membrane seat, sensitive membrane is pressed on the large end of sensitive membrane seat.
In an embodiment of the present utility model, described contrast electrode is Ag/AgCI contrast electrode.
In an embodiment of the present utility model, described display is the blue LED display backlight of band.
In an embodiment of the present utility model, described water hardness detection device also comprises measuring cup base, and described measuring cup base is made up of metal material.
In an embodiment of the present utility model, described sensitive membrane is to be the PVC sensitive membrane that active substance is made by neutral carrier.
In an embodiment of the present utility model, the bottom of the large end of described sensitive membrane seat is provided with sensitive membrane resettlement groove, and described sensitive membrane is arranged in this resettlement groove.
By technique scheme, the beneficial effects of the utility model are:
1. the utility model adopts special water hardness combination electrode, when measurement, the calcium ions and magnesium ions of water sample is had to equal selectivity, have that novel structure, current potential are stable, response fast, feature easy to use.
2. the utility model electrode measurement head is detachable setting, and in the time that electrode dispatches from the factory, electrode measurement head can be placed separately, has extended the serviceable life of electrode.
3. the utility model can be in production scene or laboratory measurement water hardness, and measurement range is 0-10mmol/l, and accuracy is ± 5%F.S.
4. when the utility model is measured, adopt the test of electrode method, when measurement, do not need to add ionic strength adjustor, without agitating solution; There is the intelligent functions such as automatic calibration, auto thermal compensation, data storing.
5. the utility model adopts intelligent chip design, has that automatic calibration, auto thermal compensation, data storing, measured value automatically lock, an intelligent functions such as automatic shutdown and low-voltage demonstration.
6. the sensitive membrane seat junction of the utility model on motor inner tube and measuring head is provided with O-ring seal, its good waterproof performance, and classification of waterproof is IP67.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model water hardness combined electrode structure schematic diagram;
Fig. 2 is the utility model electrode measurement header structure schematic diagram;
Fig. 3 is the fundamental diagram of the utility model secondary instrument.
Numeral and the represented corresponding component title of letter in figure:
100, water hardness combination electrode 110, electrode stem 120, electrode inner tube 121, external part 130, electrode measurement head 131, sensitive membrane seat 131a, small end 131b, hold 132 greatly, sensitive membrane cap 133, sensitive membrane 140, contrast electrode 141, contrast electrode chamber 150, temperature sensor 200, O-ring seal 300, intelligent controller 400, high-impedance amplifier 500, temperature meter 600, display 700, computer communication device.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to shown in Fig. 1 to Fig. 3, the utility model discloses a kind of portable water quality rigidity detection device, this pick-up unit comprises detection signal treating apparatus and water hardness combination electrode 100, water hardness combination electrode 100 joins with detection signal treating apparatus data, and detection signal treating apparatus is secondary instrument (not marking in figure).
Shown in Figure 1, the utility model water hardness combination electrode 100 comprises electrode stem 110, electrode inner tube 120, electrode measurement head 130, contrast electrode 140 and temperature sensor 150; Contrast electrode 140 is Ag/AgCI contrast electrode; Electrode inner tube 120 is located in electrode stem 110, and the dismountable sealing of electrode measurement head 130 is arranged on the external part 121 that electrode inner tube 120 stretches out from electrode stem 110; Due between electrode measurement head 130 and electrode inner tube 120 for removably connecting, it is in the time that electrode dispatches from the factory, electrode measurement head 130 can be placed separately, to extend electrode life; Contrast electrode 140 is arranged in the contrast electrode chamber 141 between electrode stem 110 and electrode inner tube 120, and in contrast electrode chamber 141, is full of the electrolyte of high concentration, and temperature sensor 150 is located in electrode stem 110, and measuring junction stretches out from electrode stem 110.
Shown in Figure 2, electrode measurement head 130 is made up of sensitive membrane seat 131, sensitive membrane cap 132 and sensitive membrane 133, the cross section of sensitive membrane seat 131 is inverse-T-shaped, sensitive membrane seat 131 comprises small end 131a and large end 131b, and small end 131a is link, and the external part 121 of link and electrode inner tube removably connects, the utility model that removably connects is herein preferably and is threaded, it can also adopt other known mode that removably connects according to actual needs, does not add and repeats herein; In order to prevent that electrolyte inside from leaking and outside water enters in combination electrode, the utility model is provided with packoff at sensitive membrane seat 131 and the connection of thread of electrode inner tube 120, sealing device is O-ring seal 200 or sealing gasket, and the utility model is preferably O-ring seal 200; The utility model sensitive membrane 133 is placed on the large end 131b of sensitive membrane seat 131, and sensitive membrane cap 132 is set on the large end 131b of sensitive membrane seat 131, and sensitive membrane 133 is pressed on the large end 131b of sensitive membrane seat 131; Stability while installation in order to improve sensitive membrane 133, the utility model holds greatly the bottom of 131b to be provided with sensitive membrane resettlement groove (not marking in figure) at sensitive membrane seat, sensitive membrane 133 when mounted, be arranged in this resettlement groove, the thickness of the thickness of resettlement groove and sensitive membrane 133 is basic identical, finally sensitive membrane cap 132 is set on the large end of sensitive membrane seat 131 sensitive membrane 133 is fixed; The classification of waterproof of O-ring seal is IP67; The utility model sensitive membrane 133 is for being the PVC sensitive membrane that active substance is made by neutral carrier, and its calcium ions and magnesium ions to water sample has equal selectivity, have that novel structure, current potential are stable, response fast, feature easy to use.
Shown in Figure 3, the utility model secondary instrument comprises intelligent controller 300, high-impedance amplifier 400, temperature meter 500, display 600 and computer communication device 700; Intelligent controller 300 connects respectively high-impedance amplifier 400, temperature meter 500, display 600 and computer communication device 700; Display 600 adopts the blue LED display backlight of band.
The utility model water hardness detection device also comprises measuring cup base (not shown in FIG.), and measuring cup base is made up of metal material, and measuring cup is placed in measuring cup base can not topple over, and has saved the larger arc-spark stand of volume, conveniently works at the scene.
The utility model can be in production scene or laboratory measurement water hardness, measurement range 0-10mmol/l, accuracy ± 5%F.S; 5 kinds of stiffness units of changeable demonstration when use, adopt waterproofing design, are applicable to production scene and laboratory and use.
This device adopts the test of electrode method, does not need to add ionic strength adjustor, without agitating solution when measurement; There is the intelligent functions such as automatic calibration, auto thermal compensation, data storing.
Through experimental results demonstrate, it has identical degree of accuracy with EDTA volumetric precipitation method, and can avoid the shortcomings of EDTA titrimetry, as the uncertainty of troublesome poeration, endpoint and be not suitable for using in muddy and coloured water sample.
This device embedded micro-processor chip, aesthetic in appearance, easy to use; Adopt the water hardness combination electrode being combined by electrode measurement head, Ag/AgCl contrast electrode and temperature electrode, and the PVC sensitive membrane of electrode measurement head is take New Neutral Carriers as active substance, the calcium ions and magnesium ions of water sample is had to equal selectivity, have that novel structure, current potential are stable, response fast, feature easy to use.
Secondary instrument adopts intelligent chip design, has that automatic calibration, auto thermal compensation, data storing, measured value automatically lock, an intelligent functions such as automatic shutdown and low-voltage demonstration; When work, can select voluntarily eight kinds of water hardness unit: mmol/L, mg/L(CaCO3), mg/L(CaO), mmol/L(Boiler), mg/L(Ca), ofH(method country), odH(Germany degree) and oeH(Britain degree); Be equipped with B1, B2 and tri-kinds of calibration solution of B3.
This device is applicable to high-acruracy survey water hardness, is particluarly suitable for field and on-the-spot use.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. a portable water quality rigidity detection device, comprises detection signal treating apparatus; It is characterized in that: described pick-up unit also comprises water hardness combination electrode, described water hardness combination electrode and detection signal treating apparatus data are joined, and it comprises:
One electrode stem;
One electrode inner tube, described electrode inner tube is located in electrode stem;
One electrode measurement head, the dismountable sealing of described electrode measurement head is arranged on the external part that electrode inner tube stretches out from electrode stem;
One contrast electrode, described contrast electrode is arranged in the contrast electrode chamber between electrode stem and electrode inner tube, and in contrast electrode chamber, is full of the electrolyte of high concentration;
One temperature sensor, described temperature sensor is located in electrode stem, and measuring junction stretches out from electrode stem.
2. portable water quality rigidity detection device according to claim 1, is characterized in that, described detection signal treating apparatus is secondary instrument, comprises intelligent controller, high-impedance amplifier, temperature meter, display and computer communication device; Described intelligent controller connects respectively high-impedance amplifier, temperature meter, display and computer communication device.
3. portable water quality rigidity detection device according to claim 1, it is characterized in that, described electrode measurement head is made up of sensitive membrane seat, sensitive membrane cap and sensitive membrane, the cross section of described sensitive membrane seat is inverse-T-shaped, described sensitive membrane seat comprises small end and large end, described small end is link, coordinates with electrode inner tube, and the root of link is provided with O-ring seal; Described sensitive membrane is placed on the large end of sensitive membrane seat, and described sensitive membrane cap sleeve is located on the large end of sensitive membrane seat, sensitive membrane is pressed on the large end of sensitive membrane seat.
4. a kind of portable water quality rigidity detection device according to claim 1, is characterized in that: described contrast electrode is Ag/AgCI contrast electrode.
5. a kind of portable water quality rigidity detection device according to claim 2, is characterized in that: described display is the blue LED display backlight of band.
6. a kind of portable water quality rigidity detection device according to claim 1, is characterized in that: described water hardness detection device also comprises measuring cup base, and described measuring cup base is made up of metal material.
7. a kind of portable water quality rigidity detection device according to claim 3, is characterized in that: described sensitive membrane is to be the PVC sensitive membrane that active substance is made by neutral carrier.
8. a kind of portable water quality rigidity detection device according to claim 3, is characterized in that: the bottom of the large end of described sensitive membrane seat is provided with sensitive membrane resettlement groove, and described sensitive membrane is arranged in this resettlement groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320624760.0U CN203606315U (en) | 2013-10-10 | 2013-10-10 | Portable water quality hardness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320624760.0U CN203606315U (en) | 2013-10-10 | 2013-10-10 | Portable water quality hardness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606315U true CN203606315U (en) | 2014-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320624760.0U Expired - Lifetime CN203606315U (en) | 2013-10-10 | 2013-10-10 | Portable water quality hardness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203606315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548312A (en) * | 2015-12-29 | 2016-05-04 | 深圳市麦迪聪医疗电子有限公司 | Electrode capable of being repeatedly used |
| CN108802103A (en) * | 2018-08-03 | 2018-11-13 | 佛山市云米电器科技有限公司 | A kind of detection structure and its control method for water purifier |
-
2013
- 2013-10-10 CN CN201320624760.0U patent/CN203606315U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548312A (en) * | 2015-12-29 | 2016-05-04 | 深圳市麦迪聪医疗电子有限公司 | Electrode capable of being repeatedly used |
| CN108802103A (en) * | 2018-08-03 | 2018-11-13 | 佛山市云米电器科技有限公司 | A kind of detection structure and its control method for water purifier |
| CN108802103B (en) * | 2018-08-03 | 2024-04-19 | 佛山市云米电器科技有限公司 | Detection structure for water purifier and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |