CN109085214A - A kind of ammonia nitrogen water quality analyzer - Google Patents
A kind of ammonia nitrogen water quality analyzer Download PDFInfo
- Publication number
- CN109085214A CN109085214A CN201811129818.8A CN201811129818A CN109085214A CN 109085214 A CN109085214 A CN 109085214A CN 201811129818 A CN201811129818 A CN 201811129818A CN 109085214 A CN109085214 A CN 109085214A
- Authority
- CN
- China
- Prior art keywords
- ammonia nitrogen
- measuring cell
- water quality
- electrode
- quality analyzer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 39
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 238000010079 rubber tapping Methods 0.000 claims abstract description 5
- 239000012528 membrane Substances 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005375 photometry Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
Abstract
The present invention discloses a kind of ammonia nitrogen water quality analyzer, including cabinet, metering pump, filter pump, converges room, helix tube and measuring cell；Sampling container and reagent container are placed in the cabinet, the metering pump is connected to by pipeline with the reagent container, the filter pump is connected to by pipeline with the sampling container, the metering pump and filter pump are connected to the room of converging respectively, the room of converging is connected to by the helix tube with the inlet of the measuring cell, the measuring cell is located at described converge below room, ammonia nitrogen electrode is provided in the measuring cell, it is also connected with drain pipe on the measuring cell, tapping valve is installed on the drain pipe.Being sufficiently mixed for water sample and NaOH solution may be implemented in ammonia nitrogen water quality analyzer provided by the invention, so that measurement result is more accurate.
Description
Technical field
The present invention relates to water analysis technical fields, and in particular to a kind of ammonia nitrogen water quality analyzer.
Background technique
Ammonia nitrogen water quality analyzer is divided into two kinds of measurement methods of photometry and electrode method.The present invention relates to measured using electrode method
The ammonia nitrogen water quality analyzer of method.Electrode method operates simpler relative to photometry.It is needed in electrode method measurement process by water
Sample is mixed in a certain ratio with NaOH solution, and mixed liquor is contacted with ammonia gas-sensing electrode, measures ammonia in water sample by ammonia gas-sensing electrode
Nitrogen concentration.In measurement process, water sample mixes one of the key technology that control is ammonia nitrogen water quality analyzer with NaOH solution.
Summary of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of ammonia nitrogen water quality analyzer is provided, solves the prior art
The technical issues of middle water sample and NaOH solution undercompounding.
To reach above-mentioned technical purpose, technical solution of the present invention provides a kind of ammonia nitrogen water quality analyzer, including cabinet, meter
Amount pump, converges room, helix tube and measuring cell at filter pump；Sampling container and reagent container are placed in the cabinet, it is described
Metering pump is connected to by pipeline with the reagent container, and the filter pump is connected to by pipeline with the sampling container, the meter
Amount pump and filter pump are connected to the room of converging respectively, and the room of converging passes through the feed liquor of the helix tube and the measuring cell
Mouth connection, the measuring cell converge below room positioned at described, and ammonia nitrogen electrode is provided in the measuring cell, is gone back on the measuring cell
It is connected with drain pipe, tapping valve is installed on the drain pipe.
Compared with prior art, the beneficial effect comprise that measuring cell is set to by this present invention converges room lower section,
Water sample is measured through automatically flowing into measuring cell through helix tube under the effect of gravity after mixing with NaOH solution, due to helix tube
In the shape of a spiral, therefore water sample and NaOH solution are sufficiently mixed when passing through helix tube, so that ammonia nitrogen electricity in subsequent measuring cell
The measurement result of pole is more accurate.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of ammonia nitrogen water quality analyzer provided by the invention；
Fig. 2 is a kind of structural schematic diagram of the heat preservation fixed block of ammonia nitrogen water quality analyzer provided by the invention；
Fig. 3 is a kind of structural schematic diagram of the ammonia nitrogen electrode of ammonia nitrogen water quality analyzer provided by the invention.
Appended drawing reference:
1, cabinet, 21, metering pump, 22, filter pump, 3, converge room, 4, helix tube, 5, measuring cell, 61, sampling container, 62,
Reagent container, 7, ammonia nitrogen electrode, 71, ventilated membrane, 72, rubber ring, 73, protection overcoat, 8, drain pipe, 81, tapping valve, 9, heat preservation
Fixed block, 91, heater, 92, temperature controller.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Embodiment 1:
As shown in Figure 1, the embodiment of the present invention 1 provides a kind of ammonia nitrogen water quality analyzer, including cabinet 1, metering pump 21,
Filter pump 22 converges room 3, helix tube 4 and measuring cell 5；Sampling container 61 and reagent container are placed in the cabinet 1
62, the metering pump 21 is connected to by pipeline with the reagent container 61, and the filter pump 22 is held by pipeline and the sampling
Device 62 is connected to, and the metering pump 21 and filter pump 22 are connected to the room 3 of converging respectively, and the room 3 of converging passes through the spiral shell
Coil 4 is connected to the inlet of the measuring cell 5, and the measuring cell 5 converges 4 lower section of room positioned at described, is set in the measuring cell 5
It is equipped with ammonia nitrogen electrode 7, drain pipe 8 is also connected on the measuring cell 5, tapping valve 81 is installed on the drain pipe 8.
Water sample can also be filtered while extracting water sample by filter pump 22, avoid impurity to the shadow of measurement result
It ringing, reagent is extracted by metering pump 21, realize the mixing of water sample and reagent solution, water sample and reagent solution converge converging room 3,
It is mixed to form measurement solution, solution is measured and enters measuring cell 5,7 pairs of measurement solution of ammonia nitrogen electrode after helix tube 4 is sufficiently mixed
It measures, obtains ammonia nitrogen concentration in water sample.
Measuring cell 5 is set to by the present invention converges the lower section of room 3, water sample mixed with NaOH solution after under the effect of gravity through passing through
Helix tube 4 automatically flows into be measured in measuring cell 5, and in the shape of a spiral due to helix tube 4, water sample and NaOH solution are being passed through
It is sufficiently mixed when helix tube 4, so that the measurement result of ammonia nitrogen electrode is more accurate in subsequent measuring cell 5.
Preferably, it as shown in Fig. 2, ammonia nitrogen water quality analyzer further includes heat preservation fixed block 9, is opened in the heat preservation fixed block 9
Equipped with measuring cell slot, slot electrode, spiral tube seat and drain tube seat, the measuring cell 5 is set in the measuring cell slot, described
Ammonia nitrogen electrode 7 is set in the slot electrode, and the helix tube 4 is set in the spiral tube seat, and the drain pipe 81 is arranged
In in the drain tube seat, the heat preservation fixed block 9 is coated with heater 91, is provided with temperature on the outer wall of the measuring cell 5
Device 92 is controlled, the temperature controller 92 is electrically connected with the heater 91.
Heat preservation fixed block 9 plays insulation effect, and temperature controller 92, heater 91 and heat preservation fixed block 9 are realized and measured
Thermostatic control in journey solves the issues of temperature compensation in ammonia nitrogen concentration measurement process, warm with measurement is passed through in the prior art
Degree, is converted into using penalty method the way of the electrode potential under normal temperature after spy, temperature-compensation method provided by the invention is surveyed
It is more accurate to measure, and structure is simply easy to accomplish, convenience of calculation.
Preferably, as shown in Fig. 2, the slot electrode is obliquely installed.
Slot electrode is obliquely installed, and guarantees that detected solution can be full of the confined space being made of measuring cell and ammonia nitrogen electrode,
So that measurement process not will receive the influence of bubble.
Preferably, as shown in figure 3, one end that the ammonia nitrogen electrode 7 protrudes into the measuring cell 5 is provided with ventilated membrane 71, institute
Ventilated membrane 71 is stated to be fixed on the ammonia nitrogen electrode 7 by the rubber ring 72 circle.
71 permission ammonias of ventilated membrane pass through, and no thoroughfare for water and ion, when NaOH solution, nothing in water sample are added in water sample
Machine ammonium salt is converted to ammonia evolution, by ventilated membrane 71, is absorbed by 7 internal-filling liquid of ammonia nitrogen electrode, internal-filling liquid pH value is caused to change, from
And achieve the purpose that measure ammonia nitrogen concentration.
Preferably, as shown in Fig. 2, the measuring cell 5 is cylindrical, the inlet of the ventilated membrane 71 and the measuring cell
Section is vertical.
Ventilated membrane 71 is vertical with the inlet section of measuring cell 5, when so that fluid to be measured entering from 5 inlet of measuring cell,
Fluid to be measured is vertically flowed to the ventilated membrane 71 of ammonia nitrogen electrode 7, plays jet action, guarantees fluid to be measured and ammonia nitrogen electrode 7
Ventilated membrane 71 comes into full contact with, and then guarantees the measurement precision of ammonia nitrogen electrode 7.
Preferably, as shown in figure 3, being coated with protection overcoat 73 on the ammonia nitrogen electrode 7, the protection overcoat 73 passes through rubber
Cushion rubber 72 is sealingly fastened on the ammonia nitrogen electrode 7.
Protection overcoat 73 prolongs the service life for protecting ammonia nitrogen electrode 7 not damaged by fluid to be measured.
Preferably, the reagent container 62 include the first standard liquid bottle, the second standard liquid bottle, NaOH reagent bottle, distilled water bottle with
And cleaning solution bottle.
Filter pump 22 is first passed through when measurement and extracts water sample, then NaOH solution is extracted by metering pump 21, forms detected solution
It measures, when cleaning after measurement, it is molten that water sample, distilled water, cleaning solution, the first standard liquid, the second standard liquid and NaOH are drawn in combination
Liquid mixing, reaches cleaning purpose, extracts distilled water fill pipe and measuring cell 5 after having cleaned, and guarantees that pipeline and measuring cell 5 do not produce
Raw precipitating, and protect ventilated membrane not 71 fouling of ammonia nitrogen electrode 7.
Preferably, lightning rod is provided on the cabinet 1.
Lightning rod avoids it from being interfered by thunder and lightning, receives damage for protecting ammonia nitrogen water quality analyzer.
The above described specific embodiments of the present invention are not intended to limit the scope of the present invention..Any basis
Any other various changes and modifications that technical concept of the invention is made should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (8)
1. a kind of ammonia nitrogen water quality analyzer, which is characterized in that including cabinet, metering pump, filter pump, converge room, helix tube and
Measuring cell；
Sampling container and reagent container are placed in the cabinet, the metering pump is connected by pipeline and the reagent container
Logical, the filter pump is connected to by pipeline with the sampling container, and the metering pump and filter pump converge room with described respectively
Connection, the room of converging are connected to by the helix tube with the inlet of the measuring cell, and the measuring cell is located at described converge
Below room, it is provided with ammonia nitrogen electrode in the measuring cell, drain pipe is also connected on the measuring cell, is installed on the drain pipe
There is tapping valve.
2. ammonia nitrogen water quality analyzer according to claim 1, which is characterized in that further include heat preservation fixed block, the heat preservation
Measuring cell slot, slot electrode, spiral tube seat and drain tube seat are offered in fixed block, the measuring cell is set to the measuring cell
In slot, the ammonia nitrogen electrode is set in the slot electrode, and the helix tube is set in the spiral tube seat, the drain pipe
It is set in the drain tube seat, the heat preservation fixed block is coated with heater, is provided with temperature on the outer wall of the measuring cell
Device is controlled, the temperature controller is electrically connected with the heater.
3. ammonia nitrogen water quality analyzer according to claim 2, which is characterized in that the slot electrode is obliquely installed.
4. ammonia nitrogen water quality analyzer according to claim 1, which is characterized in that the ammonia nitrogen electrode protrudes into the measuring cell
One end be provided with ventilated membrane, the ventilated membrane is fixed on the ammonia nitrogen electrode by the rubber ring.
5. ammonia nitrogen water quality analyzer according to claim 4, which is characterized in that the measuring cell is cylindrical, described
Air film is vertical with the inlet section of the measuring cell.
6. ammonia nitrogen water quality analyzer according to claim 1, which is characterized in that it is outer to be coated with protection on the ammonia nitrogen electrode
Set, the protection overcoat are fixed on the ammonia nitrogen electrode by seal with elastometic washer.
7. ammonia nitrogen water quality analyzer according to claim 1, which is characterized in that the reagent container includes the first standard liquid
Bottle, the second standard liquid bottle, NaOH reagent bottle, distilled water bottle and cleaning solution bottle.
8. ammonia nitrogen water quality analyzer according to claim 1, which is characterized in that be provided with lightning rod on the cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811129818.8A CN109085214A (en) | 2018-09-27 | 2018-09-27 | A kind of ammonia nitrogen water quality analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811129818.8A CN109085214A (en) | 2018-09-27 | 2018-09-27 | A kind of ammonia nitrogen water quality analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109085214A true CN109085214A (en) | 2018-12-25 |
Family
ID=64842771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811129818.8A Pending CN109085214A (en) | 2018-09-27 | 2018-09-27 | A kind of ammonia nitrogen water quality analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109085214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184649A (en) * | 2020-09-14 | 2022-03-15 | 芯视界（北京）科技有限公司 | Ammonia nitrogen detection part and ammonia nitrogen detection equipment |
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2018
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| EP0501796A2 (en) * | 1991-03-01 | 1992-09-02 | Biotrack, Inc. | Capillary stop-flow junction having improved stability against accidental fluid flow |
| JP2002048755A (en) * | 2000-07-31 | 2002-02-15 | Maywa Co Ltd | Liquid sample measuring method and measuring device |
| DE202008000973U1 (en) * | 2008-01-23 | 2008-04-30 | Gebrüder Heyl Analysentechnik GmbH & Co. KG | Device for measuring water hardness |
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