CN210322806U - Device for detecting concentration of ferrous ions in real time - Google Patents
Device for detecting concentration of ferrous ions in real time Download PDFInfo
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- CN210322806U CN210322806U CN201920346664.1U CN201920346664U CN210322806U CN 210322806 U CN210322806 U CN 210322806U CN 201920346664 U CN201920346664 U CN 201920346664U CN 210322806 U CN210322806 U CN 210322806U
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- storage tank
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- ferrous ion
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- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910001448 ferrous ion Inorganic materials 0.000 title claims abstract description 71
- 238000006243 chemical reaction Methods 0.000 claims abstract description 95
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 38
- 238000011161 development Methods 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 230000002572 peristaltic effect Effects 0.000 claims description 25
- 238000011897 real-time detection Methods 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 35
- 239000000047 product Substances 0.000 description 14
- 239000007789 gas Substances 0.000 description 8
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 7
- -1 iron ion Chemical class 0.000 description 7
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 6
- 238000005286 illumination Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model belongs to the technical field of the analysis detects, especially, relate to a device of real-time detection ferrous ion concentration, including reaction reagent injector, ferrous ion reagent injector, N2Storage tank, CO2The device comprises a storage tank, a multifunctional reaction box, a color development reactor, a three-way pipe and a color developing agent storage tank; the reaction reagent sample injector, the ferrous ion reagent sample injector, and N2Storage tank and CO2The storage tank is respectively connected with the multifunctional reaction box, and the multifunctional reaction box and the color developing agent storage tank are respectively connected with the color developing reactor through a three-way pipe. The utility model is provided withThe multifunctional reaction box can provide an isolated air environment, avoid the problem of inaccurate measurement precision and realize the real-time detection of ferrous ion concentration.
Description
Technical Field
The utility model relates to an analysis and detection technical field especially relates to a device of real-time detection ferrous ion concentration.
Background
Ferrous ions are an extremely unstable form of iron, and in an aqueous solution, ferrous ions are easily deteriorated by air oxidation and the like. In the existing chemical reaction research of ferrous ions, a series of ferrous ion solutions with different concentrations are usually set, and then other reagents are respectively added or different conditions are set for reaction, so as to research the change rule of the ferrous ions. However, such studies have two problems, firstly, the set concentration gradient is a predetermined concentration and is not a continuous process, so that the real-time detail change of the ferrous ion participating in the reaction process cannot be captured well; secondly, in the reaction process, other reagents are required to be added, the pH value is controlled, and the like, and the divalent iron ion solution is inevitably contacted with air in the processes of adding the reagents and regulating the pH value, so that oxygen in the air influences unstable divalent iron ions in the water body.
Therefore, the real-time accurate determination of the concentration of the ferrous ions is of great significance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device of real-time detection ferrous ion concentration realizes real-time accurate detection ferrous ion concentration.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
the utility model provides a real-time detection ferrous ion concentrationThe device comprises a reaction reagent injector 1, a ferrous iron ion reagent injector 2, and N2Storage tank 3, CO2The device comprises a storage tank 4, a multifunctional reaction box 5, a color development reactor 10, a three-way pipe 11 and a color developing agent storage tank 12; the reaction reagent sample injector 1, the ferrous ion reagent sample injector 2 and N2Storage tank 3 and CO2The storage tank 4 is respectively connected with the multifunctional reaction tank 5, and the multifunctional reaction tank 5 and the color developing agent storage tank 12 are respectively connected with the color developing reactor 10 through a three-way pipe 11.
Preferably, the multifunctional reaction box 5 comprises a closed reactor 6.
Preferably, the closed reactor 6 comprises an electrode 7, and the electrode 7 comprises a pH electrode and a temperature electrode.
Preferably, the device also comprises a first peristaltic pump 9-1 and a second peristaltic pump 9-2, wherein the first peristaltic pump 9-1 is arranged on a pipeline between the multifunctional reaction box 5 and the three-way pipe 11, and the second peristaltic pump 9-2 is arranged on a pipeline between the color developing agent storage tank 12 and the three-way pipe 11.
Preferably, the device also comprises a pressure reducing valve 8, wherein the pressure reducing valve 8 is arranged on a pipeline between the multifunctional reaction box 5 and the first peristaltic pump 9-1.
The utility model provides a device of real-time detection ferrous ion concentration to the reaction that has ferrous ion to participate in, the utility model discloses a N2Storage tank 3 and CO2The storage tank 4 is filled with N into the multifunctional reaction box 52And CO2The reaction reagent and the ferrous ion reagent are subjected to ferrous ion participation reaction in the multifunctional reaction box 5 in real time through the reaction reagent injector 1 and the ferrous ion reagent injector 2, the multifunctional reaction box 5 is directly connected with the color development reactor 10, the reaction product of the ferrous ion participation reaction and the color development reagent can be subjected to color development reaction in real time, the ferrous ion participation reaction process becomes a closed continuous real-time process, the concentration of the color development product is determined, the ferrous ion concentration can be detected at any time, and the real-time detection of the ferrous ion concentration is realized;
the utility model discloses react in multi-functional reaction box 5, can make whole reaction process go on in the environment that is in isolated air, all conditions of participating in the reaction all can be controlled through multi-functional reaction box 5, have avoided the artificial ferrous ion solution that contacts among the reaction process for its emergence matter becomes, leads to the inaccurate problem of measurement accuracy, utilizes the utility model discloses the measurement accuracy that the device carried out ferrous ion concentration detection is 0.03mg L.
Drawings
FIG. 1 is a schematic structural diagram of the device for real-time detection of ferrous ion concentration of the present invention, wherein, 1-reaction reagent sample injector; 2-ferrous iron ion reagent sample injector; 3-N2Storing the tank; 4-CO2Storing the tank; 5-a multifunctional reaction box; 6-sealing the reactor; 7-pH and temperature electrodes; 8-a pressure reducing valve; 9-a peristaltic pump; 10-a color development reactor; 11-a three-way pipe; 12-developer storage tank.
Detailed Description
The utility model provides a device for real-time detection ferrous ion concentration, including reaction reagent sample injector 1, ferrous ion reagent sample injector 2, N2Storage tank 3, CO2The device comprises a storage tank 4, a multifunctional reaction box 5, a color development reactor 10, a three-way pipe 11 and a color developing agent storage tank 12; the reaction reagent sample injector 1, the ferrous ion reagent sample injector 2 and N2Storage tank 3 and CO2The storage tank 4 is respectively connected with the multifunctional reaction tank 5, and the multifunctional reaction tank 5 and the color developing agent storage tank 12 are respectively connected with the color developing reactor 10 through a three-way pipe 11.
The utility model utilizes N2Driving off air in the multifunctional reaction box, keeping the function of isolating oxygen in the subsequent reaction, and utilizing CO2And adjusting the pH value in the reaction process in real time.
As an embodiment of the present invention, the multifunctional reaction box 5 includes a closed reactor 6 therein; airtight reactor is located multi-functional reaction box, the utility model discloses set up multiple experimental conditions such as illumination, constant temperature respectively through multi-functional reaction box according to experimental conditions to the condition that different ferrous ions of adaptation participated in the reaction. The utility model discloses it does not have special requirement to multi-functional reaction box, choose for use the multi-functional reaction box that technical staff in the field is familiar with for use can, in the embodiment of the utility model, specifically can choose for use MGC-450 BP.
As an embodiment of the present invention, the enclosed reactor 6 comprises an electrode 7 therein, and the electrode 7 comprises a pH electrode and a temperature electrode. The utility model discloses utilize temperature and pH value in pH electrode and the temperature electrode real-time supervision reaction process. The utility model discloses it is preferred to be in go on in the airtight reactor the chemical reaction that ferrous ion participated in can make ferrous ion's whole reaction process go on in the environment that is in isolated air, and all conditions of participating in the reaction all can be through outside environmental control, have avoided the artificial ferrous ion solution that contacts among the reaction process for its emergence matter becomes, leads to the inaccurate problem of measurement accuracy. The utility model has no special requirements on the closed reactor, and the closed reactor which is well known by the technical personnel in the field can be selected.
As an embodiment of the utility model, the device of real-time detection ferrous ion concentration still includes first peristaltic pump 9-1 and second peristaltic pump 9-2, first peristaltic pump 9-1 sets up on the pipeline between multi-functional reaction box 5 and three-way pipe 11, second peristaltic pump 9-2 sets up on the pipeline between colour development agent storage jar 12 and three-way pipe 11. The utility model discloses utilize the peristaltic pump to go into the color development reactor with the reaction back solution pump that colour developing agent and ferrous ion participated in and carry out color development reaction.
As an embodiment of the utility model, the device of real-time detection ferrous ion concentration still includes relief pressure valve 8, relief pressure valve 8 sets up on the pipeline between multi-functional reaction box 5 and first peristaltic pump 9-1. The utility model discloses a N that relief pressure valve comes control to let in2And CO2In an amount to prevent the sealed reactor from being burst by excess gas.
The utility model discloses in, utilize the device real-time detection ferrous ion concentration's method, including following step:
by using N2Storage tank 3 and CO2The storage tank 4 is filled with N into the multifunctional reaction box 52And CO2Mixing gas, namely introducing the reaction reagent solution in the reaction reagent injector 1 and the ferrous iron ion solution in the ferrous iron ion reagent injector 2 into a multifunctional reaction box 5 to perform chemical reaction with ferrous iron ions to obtain a reaction product, namely a residual ferrous iron ion solution;
carrying out color development reaction on the reaction product, namely the residual ferrous ion solution and a color developing agent in a color development reactor 10 to obtain a color development product;
and measuring the concentration of the color development product in real time to obtain the concentration of the residual ferrous ions.
In the utility model, N2And CO2N in the mixed gas2And CO2The volume ratio of (A) to (B) is preferably 3 to 10: 1.
In the present invention, the reaction solution is preferably pumped into the color development reactor 10 by the first peristaltic pump 9-1, and the color developing agent is preferably pumped into the color development reactor 10 by the second peristaltic pump 9-2.
In the utility model discloses, the flow ratio of reaction product-surplus ferrous ion solution and colour development agent is preferred 1 ~ 5: 1.
The utility model discloses in, the preferred phenanthroline solution that is the chromogenic agent, the preferred concentration of phenanthroline solution is 0.2 ~ 2.0 g/L.
FIG. 1 is a schematic diagram of the structure of the device for real-time detection of ferrous ion concentration of the present invention, and it can be seen from the diagram that the reaction reagent sample injector 1, the ferrous ion reagent sample injector 2, and N2Storage tank 3 and CO2The storage tank 4 is respectively connected with a closed reactor 6 in the multifunctional reaction box 5, the closed reactor 6 and the color developing agent storage tank 12 are respectively connected with the color developing reactor 10 through a three-way pipe 11, the closed reactor 6 is arranged in the multifunctional reaction box 5, and the closed reactor 6 comprises an electrode 7; the first peristaltic pump 9-1 is arranged on a pipeline between the multifunctional reaction box 5 and the three-way pipe 11, and the second peristaltic pump 9-2 is arranged on a pipeline between the color developing agent storage tank 12 and the three-way pipe 11; the pressure reducing valve 8 is arranged on a pipeline between the multifunctional reaction box 5 and the first peristaltic pump 9-1.
The following provides a detailed description of the method for using the device for detecting the concentration of ferrous ions in real time provided by the utility model with reference to the following examples, but they should not be construed as limiting the scope of the utility model.
Example 1
Introducing N into the closed reactor2And CO2Controlling the proportion of the mixed gas to be 8:1, keeping the pH value of the mixed gas to be 6.5, setting the temperature in a multifunctional reaction box to be 25 ℃, keeping the mixed gas in a dark state, introducing a soluble organic matter solution (DOM) in a reaction reagent sample injector and a ferrous ion solution (the concentration of which is 0.5mg/L) in the ferrous ion reagent sample injector into a closed reactor, after the start of an experiment, gradually increasing the flow of the DOM solution to 5mL/s from 0mL/s, controlling the flow of the ferrous ion reagent solution to 5mL/s, and carrying out a combined reaction of the DOM and ferrous ions to obtain a complex product-residual ferrous ion solution; the complex product and the residual ferrous ion solution are controlled by a peristaltic pump to enter a color development reactor to perform color development reaction with phenanthroline solution (the concentration is 0.5mg/L), and the flow ratio of the complex product to the phenanthroline solution is 3:1, so that a color development product is obtained; and measuring the concentration of the color development product in real time to obtain the concentration of the residual ferrous ions.
Example 2
Introducing N into the closed reactor2And CO2Controlling the proportion of the mixed gas to be 5:1, keeping the pH value to be 5.5, setting the temperature to be 20 ℃ in a multifunctional reaction box, and introducing a nitrobenzene solution (the concentration is 0.01 mu g/L) in a reaction reagent sample injector and a ferrous ion solution (the concentration is 0.1mg/L) in a ferrous ion reagent sample injector into a closed reactor in a natural illumination state to perform a ferrous ion reduction nitrobenzene reaction, wherein after the experiment is started, the flow rate of the ferrous ion solution is gradually increased to 10mL/s from 0mL/s, and the flow rate of the nitrobenzene solution is controlled to be 2mL/s, so that a product after the reaction, namely a residual ferrous ion solution, is obtained; the reacted product and the residual ferrous ion solution are controlled by a peristaltic pump to enter a color development reactor to perform color development reaction with phenanthroline solution (the concentration is 0.5mg/L), and the flow ratio of the product to the phenanthroline solution is 3:1, so that a color development product is obtained; measuring the concentration of the chromogenic product in real time to obtain residual ferrous ionsAnd (4) concentration.
Example 3
Introducing N into the closed reactor2And CO2Controlling the proportion of the mixed gas to be 4:1, keeping the pH value to be 5.5, setting the temperature to be 25 ℃ in a multifunctional reaction box, introducing domestic sewage (COD concentration is 300mg/L) in a reaction reagent sample injector and a ferrous ion solution (concentration is 0.2mg/L) in the ferrous ion reagent sample injector into the multifunctional reaction box under the ultraviolet illumination state, controlling the flow rate of the domestic sewage and the ferrous ion solution to be 10mL/s, carrying out ultraviolet illumination induction ferrous ion reaction, and after the experiment is started, gradually increasing the illumination intensity from 0W to 500W to obtain the residual ferrous ion solution after the induction reaction; feeding the residual ferrous ion solution after the induction reaction into a color development reactor by a peristaltic pump, and carrying out color development reaction on the ferrous ion solution and a phenanthroline solution (the concentration is 0.5mg/L) at a flow ratio of 1:1 to obtain a color development product; and measuring the concentration of the color development product in real time to obtain the concentration of the ferrous ions.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The device for detecting the concentration of the ferrous ions in real time is characterized by comprising a reaction reagent sample injector (1), a ferrous ion reagent sample injector (2) and N2Storage tank (3), CO2The device comprises a storage tank (4), a multifunctional reaction box (5), a color development reactor (10), a three-way pipe (11) and a color developing agent storage tank (12); the reaction reagent sample injector (1), the ferrous ion reagent sample injector (2) and N2Storage tank (3) and CO2The storage tank (4) is respectively connected with the multifunctional reaction tank (5), and the multifunctional reaction tank (5) and the color developing agent storage tank (12) are respectively connected with the color developing reactor (10) through a three-way pipe (11).
2. The apparatus according to claim 1, characterized in that the multifunctional reaction tank (5) comprises a closed reactor (6).
3. The device according to claim 2, characterized in that the closed reactor (6) comprises electrodes (7), the electrodes (7) comprising pH electrodes and temperature electrodes.
4. The device according to claim 1, further comprising a first peristaltic pump (9-1) and a second peristaltic pump (9-2), wherein the first peristaltic pump (9-1) is arranged on the pipeline between the multifunctional reaction tank (5) and the tee (11), and the second peristaltic pump (9-2) is arranged on the pipeline between the developer storage tank (12) and the tee (11).
5. The device according to claim 4, characterized in that it further comprises a pressure relief valve (8), said pressure relief valve (8) being arranged on the line between the multifunctional reaction tank (5) and the first peristaltic pump (9-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920346664.1U CN210322806U (en) | 2019-03-18 | 2019-03-18 | Device for detecting concentration of ferrous ions in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920346664.1U CN210322806U (en) | 2019-03-18 | 2019-03-18 | Device for detecting concentration of ferrous ions in real time |
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| Publication Number | Publication Date |
|---|---|
| CN210322806U true CN210322806U (en) | 2020-04-14 |
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| CN201920346664.1U Expired - Fee Related CN210322806U (en) | 2019-03-18 | 2019-03-18 | Device for detecting concentration of ferrous ions in real time |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752375A (en) * | 2019-03-18 | 2019-05-14 | 天津市环境保护科学研究院 | A kind of device and method of real-time detection ferrous ion concentration |
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2019
- 2019-03-18 CN CN201920346664.1U patent/CN210322806U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752375A (en) * | 2019-03-18 | 2019-05-14 | 天津市环境保护科学研究院 | A kind of device and method of real-time detection ferrous ion concentration |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210618 Address after: 300191 No. 17, rehabilitation Road, Tianjin, Nankai District Patentee after: Tianjin Institute of ecological and Environmental Sciences Address before: No.17, Fukang Road, Nankai District, Tianjin 300110 Patentee before: TIANJIN ACADEMY OF ENVIRONMENTAL SCIENCES |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300191 No. 17, rehabilitation Road, Tianjin, Nankai District Patentee after: Tianjin Academy of ecological and Environmental Sciences (Tianjin Academy of environmental planning, Tianjin low carbon development research center) Address before: 300191 No. 17, rehabilitation Road, Tianjin, Nankai District Patentee before: Tianjin Institute of ecological and Environmental Sciences |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20200414 |