CN2295216Y - Portable water-hardness detector - Google Patents
Portable water-hardness detector Download PDFInfo
- Publication number
- CN2295216Y CN2295216Y CN 97221404 CN97221404U CN2295216Y CN 2295216 Y CN2295216 Y CN 2295216Y CN 97221404 CN97221404 CN 97221404 CN 97221404 U CN97221404 U CN 97221404U CN 2295216 Y CN2295216 Y CN 2295216Y
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- main body
- body pipe
- sample
- utility
- sample introduction
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Abstract
The utility model relates to a portable water-hardness detector which is composed of a sampling-feeding color development system, a photoelectric detection system, a linearization processing circuit and a numeric display part, wherein, the sample-feeding color development system comprises a main body pipe (14), and liquid inlet valves (15), (16) connected with the main body pipe (14); the interior of the main body pipe (14) is provided with a movable sample-feeding plunger piston (4); a liquid discharge valve (11) which is vertical upwards is arranged on the wall of the main body pipe (14). The utility model can directly sample and detect water-hardness without previous color development, and the utility model has the advantages of simple operation and high precision.
Description
The utility model is about a kind of photoelectric colorimetric assay instrument, specifically, is a kind of analyzer of measuring calcium, magnesium ion concentration in the water according to colorimetric principle.
Water hardness is meant the content summation of calcium in the water, magnesium ion, and its assay method has traditional EDTA volumetric method, and the instrumental measurement that develops recently.Instrumental measurement has characteristics easily and fast usually.Disclose a kind of rapid assay methods and instrument of boiler water hardness as CN1087723A, this method is that cobalt salt is made five kinds of color range solution with mantoquita by different proportionings, again these five kinds of color range solution is put into five color range bottles as the standard color range.Water sampling injects the chromogenic reagent bottle during mensuration, after shaking up, developing the color, move into cuvette again be placed on relatively than the Pyatyi standard color range on the color light source, determine the water hardness according to the color identical or close with color range.This method compares chromophoric solution and color range color by naked eyes to be judged and obtains a result, so accuracy of measurement might exist than big-difference because of operating personnel are different.
In addition, CN2164042Y has introduced a kind of portable concentration photolometer, is mainly used in the phosphorus content of measuring in the soil.This photoelectric color comparator is made up of light source detection part, sampling system, main circuit board, numeral demonstration four parts.This instrument has been provided with three kinds of light sources, can select the light source of different wave length during experiment as required.Sampling system adopts the electric membrane pump that colorimetric solution is sucked cuvette and measures, and needs sample is developed the color in advance operation inconvenience before measuring.In addition, the structure of this instrument is also comparatively complicated.
The purpose of this utility model provides a kind of simple in structure, easy to use, the water hardness measuring instrument of direct injected colour developing.
The utility model is made up of sample introduction Color Appearance System, photodetector system, linearization process circuit and numeral demonstration four parts.Sample introduction Color Appearance System wherein comprises the feed liquor valve of main body pipe and two parallel connections that link to each other with the main body pipe, and the sample introduction plunger of an activity is arranged in the main body pipe, and vertically upward a tapping valve is arranged on the tube wall, and tapping valve links to each other with colorimetric pool in the photodetector system by pipeline.Photodetector system is made up of light emitting diode, colorimetric pool and photosensitive detector.Light emitting diode wherein sends monochromatic light, after solution absorption in the colorimetric pool, be radiated on the photosensitive detector, the optical signals photosensitive detector that produces converts electric signal to, electric signal shows measurement result after being processed into digital signal by digital indicator again after the linearization treatment circuit carries out linearization process.
Described sample introduction plunger is provided with a chain, and the other end of this chain is fixed with set screw, in case operation the time is pulled out the sample introduction plunger accidentally.
Described feed liquor valve and tapping valve are the little cylindricality glass chamber broad in the middle in two, and the inside surface of cavity one end has the frosted layer, and the glass stopper of an activity is arranged in the cavity, and an end of glass stopper is the semisphere of surperficial frosted, can tightly fit with the cavity frosting.
Describe the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model sample introduction Color Appearance System structural representation.
Fig. 3 is the utility model photodetector system structural representation.
Fig. 4 is the utility model linearization process circuit diagram.
As shown in Figure 1, the utility model outside is a housing, statistics have shown on the housing device 1, zeroing knob 2, demarcate knob 3, sample feeding pipe 5, developer sample introduction pipe 8, sewer pipe 9, power switch 6, supply socket 7.The sample introduction Color Appearance System is formed (seeing Fig. 2 for details) by injector and coupled two feed liquor valves and tapping valve, and the inlet of two feed liquor valves is connected with sample feeding pipe 5 and developer sample introduction pipe 8 respectively.The tapping valve outlet links to each other with photodetector system 10 by pipeline.Linearization process circuit board 22 links to each other with photodetector system 10, digital indicator 1 by circuit.
As shown in Figure 2, sample introduction Color Appearance System of the present utility model is made up of injector and coupled 15,16 and tapping valves 11 of two sampling valves.Wherein injector is made up of main body pipe 14 and sample introduction plunger 4, and the outer of sample introduction plunger 4 preferably is provided with a chain 13, and the other end of chain 13 has a set screw 12, and its effect is accidentally sample introduction plunger 4 to be pulled out when preventing to operate.Sampling valve 15,16 links to each other with main body pipe 14 by three-way pipe, and two feed liquor valves 15,16 inlet links to each other with developer sample introduction pipe 8 with sample feed tube 5 shown in Figure 1 respectively, and main body pipe 14 walls are provided with tapping valve 11 vertically upward.By Fig. 2 also as can be known, described valve is the little cylindricality glass chamber broad in the middle in two, and the inside of cavity one end is frosting, and the glass stopper 17 of an activity is arranged in the cavity, and an end of glass stopper 17 is the semisphere of surperficial frosted, can tightly fit with the frosting of cavity.
Figure 3 shows that photodetector system 10 of the present utility model, light source is the light emitting diode 19 of emission wavelength 585nm, colorimetric pool 18 is miniature circulation colorimetric pool, and photosensitive detector 20 is 3 DU80 type silicon phototriodes, and a, b are two electrical signals of this triode.This photodetector system adopts double seal, to prevent the influence of mechanical vibration in interference of ambient light line and the environment.
By circuit diagram shown in Figure 4 as can be known the photoelectricity processing procedure of sample be: light emitting diode 19 sends monochromatic light, after absorption of sample in the colorimetric pool, shine on the photosensitive detector 20, photosensitive detector 20 is converted to electric signal with light signal, be divided into two-way output by a, b end, the signal of a end output is by resistance R
1With potentiometer W
1After the collection, with the 1. pin of the form of voltage input SM713 type logarithm/antilog amplifier 21, as reference zero point, can be by rotating zeroing knob 2 regulator potentiometer W shown in Figure 1
1, adjust instrument zero.The signal of b end input is through resistance R
2Gather, with the 6. pin of the form input amplifier 21 of voltage, carry out to after the number conversion by 5. pin output, again through resistance R
3, potentiometer W
2And resistance R
4After the dividing potential drop, after the A/D conversion, demonstrate numeric results by UP311 type digital indicator 1.Can be by demarcation knob shown in Figure 13 regulator potentiometer W
2, instrument is proofreaied and correct.
The assay method of the analyzer that the utility model provides is: power lead is inserted in supply socket 7, turn on the power switch 6,8 insertions of developer sample introduction pipe are equipped with in the container of developer, sewer pipe inserts in the waste liquid receiving vessel, sample introduction pipe 5 inserts in the sample cup, push-and-pull sample introduction plunger is 4 liang to three times repeatedly, can make developer and sample mix, colour developing, its process is: when outside pulling sample introduction plunger 4, feed liquor valve 15,16, glass stopper in the tapping valve 11 is inwardly motion all, and the feed liquor valve 15 as a result, all there is the space at 16 cavity two ends, can suck sample and developer respectively, the glass stopper of tapping valve 11 is then tightly fitted with the cavity frosting, enters to stop air; On the contrary, inwardly promote sample introduction plunger 4, the glass stopper in the valve is outwards motion all, and the result is that the cavity two ends of tapping valve 11 all have the space, and colour developing liquid can be discharged, and frosting is tightly fitted in feed liquor valve 15,16 cavitys, can prevent that mixed liquor from flowing backwards.Behind the push-and-pull sample introduction plunger 4 liang to three times, developer, sample can mix in main body pipe 14 repeatedly, and color stability mixes liquid after the colour developing and discharges the back by tapping valve 11 and flow in the colorimetric pools 18, after Photoelectric Detection, is discharged by sewer pipe 9.Measurement result is shown by digital indicator 1.The operation of also need returning to zero before test of this instrument promptly is that sample repeats aforesaid operations with the high purity water, and rotation zeroing knob 2 to digital indicator 1 display digit is zero.
Used developer can guarantee to test a plurality of samples during mensuration.When developer uses up replacing, need the standard solution of a certain amount of calcium of preparation, content of magnesium, instrument is proofreaied and correct again, to prevent systematic error.Operating process is: this standard solution is a sample, and with the developer replication operation of newly joining, the hardness number of knob 3 to digital indicator 1 display standard solution demarcated in rotation.After demarcation was finished, promptly available this developer was tested.
The utility model has the advantages that: adopt special sample introduction Color Appearance System, the liquid feed valve in the system 15,16, tapping valve 11 has one-way, can prevent the mutual dirt between sample, developer, the chromophoric solution Dye, realize the operation of sample introduction-mixing-colour developing-discharge opeing. Tapping valve 11 vertically arranges, up discharge opeing, also Can prevent that residual bubble is to the impact of measurement result in the pipeline. Thereby, the analyzer that the utility model provides But direct injected is measured. Thereby omitted the in advance operating procedure of colour developing, made the mensuration of water hardness more Simple and easy to do. In addition, linearization process circuit structure of the present utility model is simple, with strong points, can guarantee The degree of accuracy of test data and precision.
Claims (3)
1. portable water hardness measuring instrument, form by sample introduction Color Appearance System, photodetector system, linearization process circuit and numeral demonstration four parts, it is characterized in that sampling system comprises main body pipe (14) and the feed liquor valve (15), (16) that link to each other with the main body pipe, the sample introduction plunger (4) that one activity is arranged in the main body pipe (14), one vertically upward tapping valve (11) is arranged on main body pipe (14) wall, and tapping valve (11) links to each other with colorimetric pool (18) in the photodetector system by pipeline.
2. according to the described analyzer of claim 1, it is characterized in that the outer of movable plunger (4) is connected with a chain (13), the other end of chain (13) is provided with set screw (12).
3. according to claim 1 or 2 described analyzers, it is characterized in that described feed liquor valve (15), (16), tapping valve (11) are the little cylindricality glass chamber broad in the middle in two, the inside surface of cavity one end is a frosting, the glass stopper (17) of one activity is arranged in the cavity, and an end of glass stopper is the semisphere of surperficial frosted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221404 CN2295216Y (en) | 1997-07-17 | 1997-07-17 | Portable water-hardness detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221404 CN2295216Y (en) | 1997-07-17 | 1997-07-17 | Portable water-hardness detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2295216Y true CN2295216Y (en) | 1998-10-21 |
Family
ID=33936815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97221404 Expired - Fee Related CN2295216Y (en) | 1997-07-17 | 1997-07-17 | Portable water-hardness detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2295216Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936889A (en) * | 2010-08-24 | 2011-01-05 | 苏州聚阳环保科技有限公司 | Color comparison unit |
| CN107628695A (en) * | 2017-10-16 | 2018-01-26 | 罗铭炽 | Hardness determination filter |
-
1997
- 1997-07-17 CN CN 97221404 patent/CN2295216Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936889A (en) * | 2010-08-24 | 2011-01-05 | 苏州聚阳环保科技有限公司 | Color comparison unit |
| CN107628695A (en) * | 2017-10-16 | 2018-01-26 | 罗铭炽 | Hardness determination filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |