CN203455306U

CN203455306U - Online sodium ion monitoring device

Info

Publication number: CN203455306U
Application number: CN201320548982.9U
Authority: CN
Inventors: 黄建
Original assignee: GUIYANG XUETONG INSTRUMENT GAUGE CO Ltd
Current assignee: GUIYANG XUETONG INSTRUMENT GAUGE CO Ltd
Priority date: 2013-09-05
Filing date: 2013-09-05
Publication date: 2014-02-26
Anticipated expiration: 2023-09-05

Abstract

The utility model discloses an online cation bed sodium ion monitoring device. The monitoring device comprises a meter (1), an alkalinization pump (2), a flow cell (3) and a water sample inlet pipe (4), wherein the water sample inlet pipe (4) is connected with a flow rate switch (5); a liquid outlet of the flow rate switch (5) is connected with a water sample cup (6); a sample liquid flow outlet (7) and an overflow hole (8) are formed in the water sample cup (6); the sample liquid flow outlet (7) is connected with the flow cell (3); the overflow hole (8) is connected with a discharge pipe (10); the alkalinization pump (2) is controlled to start or stop by the flow rate switch (5); an outlet of the alkalinization pump (2) is connected with an alkali liquid bottle (11); a gas outlet of the alkali liquid bottle (11) is connected with the flow cell (3). The monitoring device can be automatically controlled to start or stop according to the practical work conditions of a cation bed, and also has a stable monitoring effect, thereby guaranteeing the correctness of monitored values.

Description

A kind of sodion on-Line Monitor Device

Technical field

The utility model relates to a kind of sodion on-Line Monitor Device, belongs to cation bed Na ion concentration detector.

Background technology

In cation bed water treatment process, for guaranteeing water quality purity, sodium ions content is leading indicator, particularly important to its detection, in actual measurement, for ion-selective electrode, due to Na ⁺and H ⁺be all+1 valency ion, can produce phase mutual interference, therefore when detecting sodium ions content, will manage to get rid of the interference of hydrogen ion to sodion, general known method is by adding in amine substance and solution in hydrogen ion in water sample to be measured and reducing hydrogen ion content, improve hydroxyl radical negative ion content, make detected water sample present alkalescence, the pH value of water sample is improved---i.e. and so-called " water sample alkalization ".For meeting above-mentioned requirements, existing method is in pick-up unit, to place diisopropylamine collecting bottle, by alkalization pump, the volatilization gas in bottle is extruded, it is mixed with sample and realize water sample alkalization, but existing detection mode mostly is manual operation, regularly by staff's sampling inspection, after water sample alkalization, with instrument, detect sodium ions content in it, with this, determine that whether processing water is up to standard, the method cannot reach real-time monitoring, and needs a large amount of manpower and materials of cost.Separately also have equipment can realize real-time detection, but its detection is continuous working, cannot control according to actual water treatment discharge process, causes diisopropylamine large usage quantity, has serious waste; Simultaneously in testing process, because of uncontrollable flow, along with the difference alkalization effect of flow has notable difference, the accuracy that impact detects.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of can be according to actual cation bed regimen condition processed, automatic start-stop alkalization pump alkalization water quality, diisopropylamine avoids waste, reduce manual maintenance amount, realize and automatically monitor, guarantee the sodion on-Line Monitor Device that Na ion concentration data are accurate, stable, can overcome the deficiencies in the prior art.

The technical solution of the utility model:

Sodion on-Line Monitor Device, it comprises instrument, alkalization pump, flow cell and water sample water inlet pipe, on water sample water inlet pipe, be connected with flow switch, the liquid outlet of flow switch is connected with water sample cup, is provided with sample liquid flow export and overflow vent on water sample cup, and sample liquid flow export is connected with flow cell, overflow vent connects delivery pipe, flow switch is controlled the start and stop of alkalization pump and instrument, and alkalization delivery side of pump is connected with alkali lye bottle, and the gas outlet of alkali lye bottle is connected with flow cell.

Above-mentioned sodion on-Line Monitor Device is, in flow cell, be provided with successively mixing and discharge chamber, temperature electrode chamber, test chamber and reference chamber, between its adjacent cavity, be provided with communicating passage, the connected mode of communicating passage is for connecting next cavity bottom from last cavity top; Sample liquid flow export is connected with mixing and the discharge chamber of flow cell, and reference chamber is connected with delivery pipe, and the gas outlet of alkali lye bottle is connected with the mixing of flow cell and discharge chamber, and the top of mixing and discharge chamber is provided with for eliminating the vent port of bubble; The detection head of instrument is connected on temperature electrode chamber, test chamber, reference chamber; Temperature electrode chamber makes water sample and diisopropylamine carry out secondary to mix, make pH value more stable, alkalization better effects if, make to measure sodion data more accurately, stable.

Aforesaid sodion on-Line Monitor Device is to be provided with flowmeter between water sample water inlet pipe and flow switch.

Aforesaid sodion on-Line Monitor Device is to be provided with filtration unit between water sample water inlet pipe and flowmeter.

Aforesaid sodion on-Line Monitor Device is that the internal diameter of water sample cup sample solution flow export is 1.5-2.0mm.

Aforesaid sodion on-Line Monitor Device is between filtration unit and flowmeter, to be provided with secondary water sample switch.

Compared with the prior art, the beneficial effects of the utility model are:

1, the utility model arranges flow switch on water sample water inlet pipe, and the start and stop that flow switch is controlled alkalization pump, so just can realize automatic real time monitoring, reduces the waste of diisopropylamine and the energy, and reduces manual maintenance amount.When water treatment plant's cation bed quits work, water discharge capacity is lower than flow switch higher limit concretely, flow switch is controlled alkalization pump and is quit work, when when cation bed water treatment is worked, the flow of water is greater than flow switch higher limit, flow switch is controlled alkalization pump and is started working.

2, sample liquid flow export and overflow vent are set on water sample cup, so just can make the detected sample current outflow of discharge constant in 10L/h, unnecessary sample water is discharged by overflow vent, and detected sample water flows out the constant consistance that just can guarantee follow-up alkalization degree, guarantees test accuracy.

3, water sample alkalization is arranged on to flow cell, the sampling water yield that reason sample liquid flow export circulates in pond is constant, by pump, increase the volatilization of diisopropylamine amount, so just can guarantee that the alkalization degree of water sample alkalization is basically identical, guarantee the accuracy of the testing result of instrument.

4, flow cell is divided into hybrid chamber and discharge chamber, temperature electrode chamber, four the little cavitys in test chamber and reference chamber, between adjacent cavity, be provided with communicating passage, the connected mode of communicating passage is for connecting next cavity bottom from last cavity top, relatively independent like this hybrid chamber can be guaranteed the effect that alkalizes, mixing and discharge chamber upper end communicate with atmosphere, can eliminate bubble, the object of eliminating bubble is that measured value is more accurate, stable, temperature electrode is put in temperature electrode chamber, make like this diisopropylamine again mix in temperature chamber, make pH value more stable, potential electrode is put in inspection chamber, contrast electrode is put in reference chamber, temperature electrode, potential electrode, contrast electrode is all connected with instrument.

accompanying drawing explanation:

Fig. 1 is structural representation of the present utility model.

embodiment:

Embodiment 1, as shown in Figure 1, the measuring instrument 1 of this device is sodion detector, alkalization material in alkali lye bottle 11 is diisopropylamine, diisopropylamine splendid attire and alkali lye bottle 11 are provided with air intake opening and gas outlet on the bottle cap of alkali lye bottle 11, and air intake opening is connected with the outlet of alkalization pump 2, gas outlet is connected with hybrid chamber and the discharge chamber 12 of

flow cell

3, and 2 air-blowing of alkalization pump have increased diisopropylamine self volatilization and alkalized; The route of flowing through of this device detected water sample is followed successively by, water sample water inlet pipe 4, filtration unit 18, secondary water sample switch 9, flowmeter 17, flow switch 5, water sample cup 6, flow cell 3 and delivery pipe 10, and between each device, water pipe connects.It should be noted that, a, flow switch 5, flow switch 5 is controlled the start and stop of alkalization pumps 2, and it is for often opening, and when entering the interior sample flow quantity of flow switch 5 and be greater than setting value, flow switch 5 closures, control alkalization pump 2 and work, and alkalization process starts; B, water sample cup 6, water sample cup 6 is provided with two outlets of an import, and two outlets are respectively sample liquid flow export 7 and overflow vent 8, and the liquid being flowed out by sample liquid flow export 7 is to need the rear sample of alkalization, and the part being flowed out by overflow vent 8 is directly discharge; For controlling the internal diameter of flow sample liquid flow export 7, be 1.5-2.0mm, its flow is less than the startup requirement of flow switch 5, and sample liquid flow export 7 is connected with hybrid chamber and the discharge chamber 12 of flow cell 3, and the hybrid chamber of flow cell 3 and discharge chamber 12 are alkalization region.C, flow cell 3, in flow cell 3, be provided with successively hybrid chamber and discharge chamber 12, temperature electrode chamber 13, test chamber 14 and reference chamber 15, between its adjacent cavity, be provided with communicating passage 16, the connected mode of communicating passage 16 is for connecting next cavity bottom from last cavity top; Sample liquid flow export 7 is connected with hybrid chamber and the discharge chamber 12 of flow cell 3, and reference chamber 15 is connected with delivery pipe 10, and the gas outlet of alkali lye bottle 11 is connected with hybrid chamber and the discharge chamber 12 of flow cell 3; Mixing and discharge chamber 12 upper ends communicate with atmosphere, can eliminate bubble, the object of eliminating bubble is that measured value is more accurate, stable, temperature electrode is put in temperature electrode chamber 13, make like this diisopropylamine 13 li of mixing again in temperature electrode chamber, make pH value more stable, potential electrode is put in inspection chamber 14, contrast electrode is put in reference chamber 15, and temperature electrode, potential electrode, contrast electrode are all connected with instrument.

Claims

1. a sodion on-Line Monitor Device, it comprises instrument (1), alkalization pump (2), flow cell (3) and water sample water inlet pipe (4), it is characterized in that: on water sample water inlet pipe (4), be connected with flow switch (5), the liquid outlet of flow switch (5) is connected with water sample cup (6), on water sample cup (6), be provided with sample liquid flow export (7) and overflow vent (8), sample liquid flow export (7) is connected with flow cell (3), overflow vent (8) connects delivery pipe (10), flow switch (5) is controlled the start and stop of alkalization pump (2), the outlet of alkalization pump (2) is connected with alkali lye bottle (11), the gas outlet of alkali lye bottle (11) is connected with flow cell (3).

2. sodion on-Line Monitor Device according to claim 1, it is characterized in that: in flow cell (3), be provided with successively and mix and discharge chamber (12), temperature electrode chamber (13), test chamber (14) and reference chamber (15), between its adjacent cavity, be provided with communicating passage (16), the connected mode of communicating passage (16) is for connecting next cavity bottom from last cavity top; Sample liquid flow export (7) is connected with mixing and the discharge chamber (12) of flow cell (3), reference chamber (15) is connected with delivery pipe (10), the gas outlet of alkali lye bottle (11) is connected with mixing and the discharge chamber (12) of flow cell (3), and the top of mixing and discharge chamber is provided with for eliminating the vent port of bubble; The detection head of instrument (1) is connected on temperature electrode chamber (13), test chamber (14), reference chamber (15); Temperature electrode chamber (13) makes water sample and diisopropylamine carry out secondary to mix, make pH value more stable, alkalization better effects if, make to measure sodion data more accurately, stable.

3. sodion on-Line Monitor Device according to claim 1 and 2, is characterized in that: between water sample water inlet pipe (4) and flow switch (5), be provided with flowmeter (17).

4. sodion on-Line Monitor Device according to claim 3, is characterized in that: between water sample water inlet pipe (4) and flowmeter (17), be provided with filtration unit (18).

5. sodion on-Line Monitor Device according to claim 4, is characterized in that: the internal diameter of water sample cup (6) sample solution flow export (7) is 1.5-2.0mm.

6. sodion on-Line Monitor Device according to claim 4, is characterized in that: between filtration unit (18) and flowmeter (17), be provided with secondary water sample switch (9).