CN203275349U - Ammonia nitrogen concentration water quality analyzer - Google Patents
Ammonia nitrogen concentration water quality analyzer Download PDFInfo
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- CN203275349U CN203275349U CN 201320274903 CN201320274903U CN203275349U CN 203275349 U CN203275349 U CN 203275349U CN 201320274903 CN201320274903 CN 201320274903 CN 201320274903 U CN201320274903 U CN 201320274903U CN 203275349 U CN203275349 U CN 203275349U
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Abstract
The utility model relates to a water quality analyzer and in particular relates to water quality detection equipment for analyzing the ammonia nitrogen concentration of a water sample. The ammonia nitrogen concentration water quality analyzer comprises a liquid metering and conveying unit, a liquid reacting and measuring unit and a PLC (programmable logic controller) unit, wherein the liquid metering and conveying unit is specifically formed by four electronic control valves, two pumps and pipelines; the liquid reacting and measuring unit is characterized in that the lower end of a reaction vessel is provided with a liquid input port and is connected with a main conveying pipeline, an ammonia gas sensing electrode is arranged in the vessel, a heater is arranged outside the vessel, and a liquid outlet is formed at the upper end of the vessel and is connected with the outside by a waste liquid drain pipeline; and the first electronic control valve, the second electronic control valve, the third electronic control valve, the fourth electronic control valve, the first pump, the second pump, the ammonia gas sensing electrode and the heater are electrically connected to a port of the PLC unit. The ammonia nitrogen concentration water quality analyzer is used for detecting the ammonia nitrogen concentration of the water sample.
Description
Technical field
The utility model relates to Water Test Kits, relates in particular to the water quality detection equipment of the ammonia nitrogen concentration analysis of water sample.
Background technology
What of nitrogen compound in water can be used as the index that water body is subject to the itrogenous organic substance pollution level.It is ammonia nitrogen, nitrite nitrogen, nitrate nitrogen, organic nitrogen that the reflection water body is subjected to the nitrogen of several forms of nitrogen-containing compound pollution level.Measure the nitrogen compound of various forms in water, help to estimate the degree of the contaminated degree of water body and " self-cleaning ".Ammonia nitrogen in water refers to (or claim non-ionic ammonia, NH3) and the nitrogen that exists of ion ammonia (NH4+) form with free ammonia.When ammonia-nitrogen content is higher, fish are presented toxic action, human body is also had in various degree harm.Therefore, need and to detect water quality to the equipment of Water quality ammonia nitrogen concentration analysis.
The patent documentation of publication number 101598719 has proposed a kind of wastewater flow, ammonia nitrogen concentration and ammonia nitrogen total content water quality on-line combined tester, but comparatively complicated, use cost is high.The patent documentation of publication number 103091386A has proposed a kind of ammonia nitrogen pick-up unit, but too simple and easy, can not long-time reliable and stable use.
The utility model content
Therefore, the utility model proposes that a kind of apparatus structure is simple and reliable, required maintenance is little, and to the metering of reagent with carry more accurate ammonia nitrogen concentration Water Test Kits.
The technical solution of the utility model is:
The ammonia nitrogen concentration Water Test Kits comprises liquid meter and supply unit, liquid reactions and measuring unit and PLC unit.described liquid meter and supply unit be specifically: the first mark liquid bottle and the second mark liquid bottle are connected to two input ends of the 4th electrically-controlled valve by pipeline, distilled water bottle and cleaning fluid bottle are connected to two input ends of the 3rd electrically-controlled valve by pipeline, the output terminal of the 3rd electrically-controlled valve and the 4th electrically-controlled valve is connected to two input ends of the second electrically-controlled valve by pipeline, the output terminal of the second electrically-controlled valve and water sample bottle are connected to two input ends of the first electrically-controlled valve by pipeline, the output terminal of the first electrically-controlled valve is connected to the first pump by pipeline, the sodium hydroxide solution bottle is connected to the second pump by pipeline, the first pump and the second pump access the liquid inlet of described liquid reactions and measuring unit by main delivery pipe, described liquid reactions and measuring unit are: a reaction vessel lower end is provided with liquid inlet, be connected with main delivery pipe, be provided with ammonia gas-sensing electrode in container, container peripheral hardware having heaters, container upper end is provided with leakage fluid dram, and be connected to the external world by the waste liquid Drainage pipe, the first above-mentioned electrically-controlled valve, the second electrically-controlled valve, the 3rd electrically-controlled valve, the 4th electrically-controlled valve, the first pump, the second pump, ammonia gas-sensing electrode and well heater all are electrically connected on the port of PLC unit.
Preferably, described the first pump and the second pump are peristaltic pumps.
Preferably, also comprise touch screen unit and a control panel, described touch screen unit is electrically connected on control panel, and described PLC unit also is electrically connected on control panel.
Ammonia nitrogen concentration Water Test Kits of the present utility model is compared with other existing ammonia nitrogen concentration Water Test Kits, has the following advantages:
(1) ammonia nitrogen concentration Water Test Kits of the present utility model adopts the ammonia electrode measuring method to realize, the simple and Measurement sensibility of its one-piece construction;
(2) ammonia nitrogen concentration Water Test Kits of the present utility model has adopted metering and the conveying of peristaltic pump as reagent and water sample (comprising correcting fluid), and the metering reproducibility error is extremely low;
(3) ammonia nitrogen concentration Water Test Kits of the present utility model has 2 point type automatic calibration functions, and measuring accuracy is high;
(4) ammonia nitrogen concentration Water Test Kits of the present utility model has automatic cleaning function, reduces maintenance cost;
(5) electrode measurement of ammonia nitrogen concentration Water Test Kits of the present utility model adopts heat block and flow cell principle, can realize continuous automatic measurement, improves Measurement and analysis efficient.
Description of drawings
Fig. 1 is an example structure schematic diagram of ammonia nitrogen concentration Water Test Kits of the present utility model;
Fig. 2 is the curve synoptic diagram that in water sample, ammonia nitrogen concentration and electrode potential are the log-linear relation.
Embodiment
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
Consult shown in Figure 1ly, the ammonia nitrogen concentration Water Test Kits of this embodiment comprises liquid meter and supply unit, liquid reactions and measuring unit and PLC unit (not shown).described liquid meter and supply unit be specifically: the first mark liquid bottle (dress titer A) the 14 and second mark liquid bottle (dress titer B) 15 is connected to two input ends of the 4th electrically-controlled valve F4 by pipeline, distilled water bottle 12 and cleaning fluid bottle 13 are connected to two input ends of the 3rd electrically-controlled valve F3 by pipeline, the output terminal of the 3rd electrically-controlled valve F3 and the 4th electrically-controlled valve F4 is connected to two input ends of the second electrically-controlled valve F2 by pipeline, the output terminal of the second electrically-controlled valve F2 and water sample bottle 11 are connected to two input ends of the first electrically-controlled valve F1 by pipeline, the output terminal of the first electrically-controlled valve F1 is connected to the first pump P1 by pipeline, NaOH (NaOH) solution bottle 16 is connected to the second pump P2 by pipeline, the first pump P1 and the second pump P2 access the liquid inlet 211 of described liquid reactions and measuring unit by main delivery pipe, described liquid reactions and measuring unit are: reaction vessel 21 lower ends are provided with liquid inlet 211, be connected with main delivery pipe, be provided with ammonia gas-sensing electrode 23 in container 21, container 21 peripheral hardware having heaters 22, container 21 upper ends are provided with leakage fluid dram 212, and be connected to the external world by the waste liquid Drainage pipe, the first above-mentioned electrically-controlled valve F1, the second electrically-controlled valve F2, the 3rd electrically-controlled valve F3, the 4th electrically-controlled valve F4, the first pump P1, the second pump P2, ammonia gas-sensing electrode 23 and well heater 22 all are electrically connected on the port of PLC unit.
Preferably, described the first pump P1 and the second pump P2 adopt peristaltic pump.
Preferably, this embodiment also comprises touch screen unit and a control panel, and described touch screen unit is electrically connected on control panel, and described PLC unit also is electrically connected on control panel.
The ammonia nitrogen concentration Water Test Kits of this embodiment can be used for monitoring the ammonia nitrogen concentration in water of river and lake, waterworks, waste water treatment plant's sewage effluent and industrial and mining enterprises' discharging water body.The ammonia nitrogen concentration Water Test Kits of this embodiment is to adopt Ammonia Gas Sensor Electrode Method to measure ammonia nitrogen in water, and water sample does not generally need through pre-treatment.The selective breathable films of the head of ammonia gas-sensing electrode 23.This selectivity breathable films only allows ammonia to pass through, and no thoroughfare for water and ion.After adding NaOH solution in water sample, in water sample, inorganic ammonium salt changes the ammonia effusion into, sees through the selectivity breathable films, by the internal-filling liquid absorption of electrode interior, causes that the pH value of internal-filling liquid changes.The pH electrode of ammonia electrode inside can detect the pH value intensity of variation of internal-filling liquid, can obtain ammonia nitrogen concentration in water sample through after computing.
Consult shown in Figure 2ly, in water sample, ammonia nitrogen concentration is the log-linear relation in 0.05mg/L～1000 mg/L scopes and electrode potential.Therefore the ammonia nitrogen concentration Water Test Kits of this embodiment adopts 2 calibration methods, and for example standard specimen concentration is 1mg/L, 10mg/L; Or 5mg/L, 50mg/L etc.
The ammonia nitrogen concentration Water Test Kits of this embodiment is when measuring, by the PLC unit the first electrically-controlled valve F1, the second electrically-controlled valve F2, the 3rd electrically-controlled valve F3, the 4th electrically-controlled valve F4, the first pump P1, the second pump P2 being carried out the action control as following table 1:
Table 1:
In addition, the ammonia nitrogen concentration Water Test Kits of this embodiment adopts peristaltic pump (the first pump P1, the second pump P2) to carry and measure sample, reagent, adopts potpourri heating and the constant temperature of 22 pairs of samples of well heater and reagent.And realize that PLC controls and touch screen unit touch operation by the PLC unit, guarantee to the control of various functions and with operator's dialogue.And the ammonia nitrogen concentration Water Test Kits of this embodiment employing pipeline connection cleaning fluid bottle 13 interior cleaning fluids (10% aqueous citric acid solution) of drawing, can realize automatic cleaning function, greatly reduce the manual maintenance cost.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (3)
1. ammonia nitrogen concentration Water Test Kits, comprise liquid meter and supply unit, liquid reactions and measuring unit and PLC unit, it is characterized in that: described liquid meter and supply unit specifically: the first mark liquid bottle and the second mark liquid bottle are connected to two input ends of the 4th electrically-controlled valve by pipeline, distilled water bottle and cleaning fluid bottle are connected to two input ends of the 3rd electrically-controlled valve by pipeline, the output terminal of the 3rd electrically-controlled valve and the 4th electrically-controlled valve is connected to two input ends of the second electrically-controlled valve by pipeline, the output terminal of the second electrically-controlled valve and water sample bottle are connected to two input ends of the first electrically-controlled valve by pipeline, the output terminal of the first electrically-controlled valve is connected to the first pump by pipeline, the sodium hydroxide solution bottle is connected to the second pump by pipeline, the first pump and the second pump access the liquid inlet of described liquid reactions and measuring unit by main delivery pipe, described liquid reactions and measuring unit are: a reaction vessel lower end is provided with liquid inlet, be connected with main delivery pipe, be provided with ammonia gas-sensing electrode in container, container peripheral hardware having heaters, container upper end is provided with leakage fluid dram, and be connected to the external world by the waste liquid Drainage pipe, the first above-mentioned electrically-controlled valve, the second electrically-controlled valve, the 3rd electrically-controlled valve, the 4th electrically-controlled valve, the first pump, the second pump, ammonia gas-sensing electrode and well heater all are electrically connected on the port of PLC unit.
2. ammonia nitrogen concentration Water Test Kits according to claim 1, it is characterized in that: described the first pump and the second pump are peristaltic pumps.
3. ammonia nitrogen concentration Water Test Kits according to claim 1 and 2 is characterized in that: also comprise touch screen unit and a control panel, described touch screen unit is electrically connected on control panel, and described PLC unit also is electrically connected on control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274903 CN203275349U (en) | 2013-05-20 | 2013-05-20 | Ammonia nitrogen concentration water quality analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274903 CN203275349U (en) | 2013-05-20 | 2013-05-20 | Ammonia nitrogen concentration water quality analyzer |
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| CN203275349U true CN203275349U (en) | 2013-11-06 |
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| CN 201320274903 Expired - Fee Related CN203275349U (en) | 2013-05-20 | 2013-05-20 | Ammonia nitrogen concentration water quality analyzer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458869A (en) * | 2014-11-10 | 2015-03-25 | 深圳泽峰环保技术有限公司 | Online ammonia escape monitoring and analyzing method and online ammonia escape monitoring and analyzing instrument |
| CN104849422A (en) * | 2015-03-11 | 2015-08-19 | 中国农业大学 | Ammonia nitrogen on-line monitoring system and method thereof |
| CN105954489A (en) * | 2016-07-12 | 2016-09-21 | 何莉 | Online monitoring system for ammonia nitrogen in water quality |
| CN109900769A (en) * | 2017-12-08 | 2019-06-18 | 中国科学院大连化学物理研究所 | The method and device of ammonia nitrogen in a kind of ion mobility spectrometry quantitative measurment water |
| CN111239080A (en) * | 2020-01-21 | 2020-06-05 | 力合科技（湖南）股份有限公司 | Quality control device and OCEC analytic system |
-
2013
- 2013-05-20 CN CN 201320274903 patent/CN203275349U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458869A (en) * | 2014-11-10 | 2015-03-25 | 深圳泽峰环保技术有限公司 | Online ammonia escape monitoring and analyzing method and online ammonia escape monitoring and analyzing instrument |
| CN104849422A (en) * | 2015-03-11 | 2015-08-19 | 中国农业大学 | Ammonia nitrogen on-line monitoring system and method thereof |
| CN105954489A (en) * | 2016-07-12 | 2016-09-21 | 何莉 | Online monitoring system for ammonia nitrogen in water quality |
| CN109900769A (en) * | 2017-12-08 | 2019-06-18 | 中国科学院大连化学物理研究所 | The method and device of ammonia nitrogen in a kind of ion mobility spectrometry quantitative measurment water |
| CN111239080A (en) * | 2020-01-21 | 2020-06-05 | 力合科技（湖南）股份有限公司 | Quality control device and OCEC analytic system |
| CN111239080B (en) * | 2020-01-21 | 2023-09-29 | 力合科技（湖南）股份有限公司 | Quality control device and OCEC analysis system |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20200520 |
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| CF01 | Termination of patent right due to non-payment of annual fee |