CN216350550U - Bromide ion tester - Google Patents
Bromide ion tester Download PDFInfo
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- CN216350550U CN216350550U CN202121976139.1U CN202121976139U CN216350550U CN 216350550 U CN216350550 U CN 216350550U CN 202121976139 U CN202121976139 U CN 202121976139U CN 216350550 U CN216350550 U CN 216350550U
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Abstract
The utility model relates to the field of material component analysis equipment, in particular to a bromide ion tester, which comprises a shell, an iodine measuring flask, a stirrer, a heating device, a camera and a pump set, wherein the iodine measuring flask, the stirrer, the heating device, the camera and the pump set are arranged in the shell, the stirrer is used for stirring materials in the iodine measuring flask, the camera is arranged on one side of the iodine measuring flask, the heating device is used for heating the iodine measuring flask, the pump set is used for adding solution into the iodine measuring flask, the iodine measuring flask is provided with an exhaust port, and the exhaust port is communicated with the outside of the shell through a pipeline. Compared with the prior art, the bromide ion tester has the beneficial effects that: the iodine measuring bottle is communicated with the outside of the shell through an exhaust pipe, so that CO is generated after sodium hypochlorite solution is added2Can discharge the iodine measuring flask in time and discharge the iodine measuring flask to the shellExternal, not only to prevent Na2S2O3The device can decompose and ensure the measurement precision, and can prevent water vapor and corrosive gas from damaging electronic elements in the shell.
Description
Technical Field
The utility model relates to the field of material component analysis equipment, in particular to a bromide ion tester.
Background
Bromine is used as an important chemical raw material, is mainly used for preparing various bromine salts and organic bromides, is used for medicines, pesticides, dyes, spices, photographic materials, flame retardants, fire extinguishing agents, metallurgy, purified water and the like, and is also used as a common analytical reagent, an oxidant and an absorbent, so that the bromine has good market sales condition and high profit margin and occupies an important position in the whole utilization of ocean resources.
In nature, bromine is mainly present in seawater, salt lake water, and mineral water in petroleum production areas, and in various resources, bromine is present in the form of salts such as magnesium, potassium, and sodium. Although the unit content of various chemical elements in seawater is small (the content of bromine is about 65mg/L), the total content is very large, seawater is a main source for extracting bromine, more than 99% of bromine elements on the earth are stored in the seawater, and the total content reaches 100 trillion t. The bromine resources in China are mainly distributed in coastal areas of east, and natural brine is rich due to long coastline, so that good conditions are provided for preparing bromine.
Determination principle of bromide ions in seawater: in seawater or brine with the pH value of 5.5-7.0, quantitatively oxidizing bromide ions into bromate ions by hypochlorite, destroying excess hypochlorite by sodium formate, and then measuring the generated bromate ions by an iodometry method to obtain the content of the bromide ions, wherein the reaction formula is as follows:
ClO-+H++HCOO-→CO2↑+H2O+Cl-
the hypochlorite method measurement results are the total amount of bromine and iodine ions, and hypochlorite can react with iodine ions in the same manner:
however, in seawater, brine and carnallite mother liquor of bromine preparation stock solution, the content of iodine is very small and can be ignored.
The measuring procedure comprises the following steps: sucking a certain amount of sample solution (containing 15mg of bromide ions), placing the sample solution in a 250mL iodine measuring flask, adding water to 50mL, adding 1 g-1.5 g of boric acid, dissolving, heating to boil for 5 min-8 min after the solution becomes clear, slightly cooling (below 60 ℃), adding 5mL 20% sodium formate solution, carefully washing the inner wall of the iodine measuring flask with water (avoiding residual potassium hypochlorite on the flask wall), and shaking. Boiling for 3-5 min, cooling to room temperature, adding 2-3 g potassium iodide, dissolving, adding 7-10 mL6mol/L hydrochloric acid solution, covering the bottle stopper, shaking up, immediately titrating to light yellow with 0.1mol/L sodium thiosulfate standard solution, adding 5mL 5.0.5% starch solution, and continuing to titrate until blue color just disappears.
In the measuring process, CO is generated after sodium hypochlorite solution is added2Untimely discharge can lead to Na during titration2S2O3Decomposition, the reaction formula is:
this can seriously affect titration accuracy.
In the traditional manual determination process, the iodine measuring flask is in an open state, so that CO is in an open state2Can be discharged in time without causing Na2S2O3Decomposition ofTherefore, the prior art does not address this problem.
However, in the automatic measuring apparatus, since a large number of electronic components are present in the apparatus and the apparatus is damaged by water vapor generated during the measurement, the conventional automatic measuring apparatus seals the iodine measuring vial to prevent the water vapor and corrosive gas in the iodine measuring vial from overflowing and damaging the electric components in the apparatus, which greatly affects the measurement accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provides a bromide ion tester, wherein an iodine measuring flask is communicated with the outside of a shell through an exhaust pipe, so that CO is generated after sodium hypochlorite solution is added2Can discharge the iodine measuring flask in time and discharge the iodine measuring flask to the outside of the shell, and can prevent Na2S2O3The device can decompose and ensure the measurement precision, and can prevent water vapor and corrosive gas from damaging electronic elements in the shell.
The technical problem to be solved is realized by adopting the following technical scheme: the utility model provides a bromide ion apparatus, includes the casing and establishes iodine bottle, agitator, heating device, camera, pump package in the casing, the agitator is used for stirring the material in the iodine bottle, the camera sets up in one side of iodine bottle, heating device is used for heating the iodine bottle, the pump package is used for adding solution in the iodine bottle, the iodine bottle passes through the outside intercommunication of blast pipe and casing.
Compared with the prior art, the bromide ion tester has the beneficial effects that: the iodine measuring bottle is communicated with the outside of the shell through an exhaust pipe, so that CO is generated after sodium hypochlorite solution is added2Can discharge the iodine measuring flask in time and discharge the iodine measuring flask to the outside of the shell, and can prevent Na2S2O3The device can decompose and ensure the measurement precision, and can prevent water vapor and corrosive gas from damaging electronic elements in the shell.
The technical scheme of the utility model also comprises an exhaust pump, wherein the exhaust pump is connected with the exhaust pipe. In the technical scheme, the exhaust pump can more thoroughly discharge the iodine content bottleCO of2。
According to the technical scheme, the pump set comprises a first pump, a second pump, a third pump, a fourth pump, a fifth pump, a sixth pump, a seventh pump, an eighth pump, a ninth pump and a tenth pump, and the first pump, the second pump, the third pump, the fourth pump, the fifth pump, the sixth pump, the seventh pump, the eighth pump, the ninth pump and the tenth pump are all connected with the iodine measuring bottle. The first pump, the second pump, the third pump, the fourth pump, the fifth pump, the sixth pump, the seventh pump and the eighth pump are respectively used for adding a solution to be detected, a boric acid solution, a sodium hypochlorite solution, a sodium formate solution, a potassium iodide solution, a hydrochloric acid solution, a starch solution and clear water into the iodine measuring flask, the ninth pump is used for discharging waste, and the tenth pump is used for dropping a sodium thiosulfate solution.
The technical scheme of the utility model also comprises a ten-channel valve, wherein the first pump, the second pump, the third pump, the fourth pump, the fifth pump, the sixth pump, the seventh pump, the eighth pump and the tenth pump are all connected with the iodine measuring bottle through the ten-channel valve. Adopt this technical scheme, reduced the quantity of iodine bottle open-top through ten passageway valves to leave bigger space in order to set up other components, for example heating rod, temperature sensor etc..
According to the technical scheme, the first pump, the second pump, the third pump, the fourth pump, the fifth pump, the sixth pump, the seventh pump, the eighth pump and the ninth pump are all peristaltic pumps, and the tenth pump is an injection pump.
According to the technical scheme, the heating device comprises a heating rod, and the heating rod is arranged in the iodine measuring flask. By adopting the technical scheme, the material in the iodine measuring flask can be efficiently heated through the heating rod.
Drawings
Fig. 1 is a schematic structural view of a bromide ion meter according to the first embodiment.
Fig. 2 is a schematic view of the piping connection of the bromide ion meter in the first embodiment.
Fig. 3 is a schematic structural view of the iodine amount bottle cap in the first embodiment.
Fig. 4 is a schematic structural view of a bromide ion meter according to the second embodiment.
In the figure: 1. the device comprises a first pump, a second pump, a third pump, a fourth pump, a fifth pump, a sixth pump, a 7 seventh pump, a 8 eighth pump, a 9 ninth pump, a 10 tenth pump, a 11 tenth pump, an iodine measuring bottle, a 12 tenth channel valve, a 13 stirrer, a 14 camera, a 15 casing, a 16 exhaust port, a 17 exhaust pump, a 18 heating rod, a 19 temperature sensor, a 20 touch screen, a 21 iodine measuring bottle cap, a 22 liquid injection port, a 23 heating rod mounting port, a 24 temperature sensor mounting port, a 25 exhaust pipe.
Detailed Description
The following examples are further illustrative of the present invention, but the present invention is not limited thereto. Because the present invention is complicated, the detailed description of the embodiments is only for the point of the present invention, and the detailed description of the present invention can adopt the prior art.
The first embodiment is as follows:
fig. 1 to 3 show a first embodiment of the present invention.
The embodiment provides a bromine ion tester, which comprises a shell 15, an iodine measuring flask 11, a stirrer 13, a heating device, a camera 14, a pump set, a ten-channel valve 12 and a temperature sensor 19, wherein the iodine measuring flask 11, the stirrer 13, the heating device, the camera 14, the pump set, the ten-channel valve 12 and the temperature sensor 19 are arranged in the shell.
The volume of the iodine measuring flask 11 is 100 ml. The top of the iodine content bottle 11 is provided with an iodine content bottle cap 21, and as shown in fig. 4, the iodine content bottle cap 21 is provided with a liquid injection port 22, an exhaust port 16, a heating rod mounting port 23 and a temperature sensor mounting port 24.
The first pump 1, the second pump 2, the third pump 3, the fourth pump 4, the fifth pump 5, the sixth pump 6, the seventh pump 7, the eighth pump 8 and the ninth pump 9 are all peristaltic pumps, and the tenth pump 10 is an injection pump. No. 1 pump, No. 2 pump, No. 3 pump, No. 4 pump, No. 5 pump, No. 6 pump, No. seven pump 7 pump, No. 8 pump, No. 10 pump all are connected with ten passageway valves 12, ten passageway valves 12 are connected with notes liquid mouth 22, No. 1 pump, No. 2 pump, No. 3 pump, No. 4 pump, No. 5 pump, No. six pump 6 pump, No. 7 pump, No. 8 pump, No. 10 pump are used for adding respectively to waiting to detect liquid, boric acid solution, sodium hypochlorite solution, sodium formate solution, potassium iodide solution, hydrochloric acid solution, starch solution, clear water and sodium thiosulfate solution in the iodine measuring flask 11. And the nine-pump 9 is connected with the bottom of the iodine measuring bottle 11 and is used for discharging waste.
The stirrer 13 is used for stirring the materials in the iodine measuring flask 11, the stirrer 13 in the embodiment is a magnetic stirrer, and the iodine measuring flask 11 is placed on the stirrer 13.
The camera 14 is disposed at one side of the iodine measuring flask 11 and is used for acquiring the color of the solution in the iodine measuring flask 11 so as to determine the titration end point.
The heating device is used for heating the iodine bottle 11, and specifically, the heating device in this embodiment includes the heating rod 18, the heating rod 18 is installed on iodine bottle lid 21 through heating rod installing port 23, the heating rod 18 sets up in the iodine bottle 11.
The temperature sensor 19 is installed on the iodine bottle cap 21 through a temperature sensor installing port 24, and the temperature sensor 19 is arranged in the iodine bottle 11.
The exhaust port 16 communicates with the outside of the housing 15 through an exhaust pipe 25.
The bromide ion tester of the embodiment is used for testing the bromide ion content in seawater or brine, and the specific testing process is as follows: a pump 1 pumps 25ml of liquid to be detected and places the liquid in an iodine measuring flask 11, and a pump 2 adds boric acid solution (containing 1g to 1.5g of boric acid) with the pH value of the solution being 5.5 to 7.0. Adding 5 ml-8 ml sodium hypochlorite solution into a third pump 3, starting a stirrer 13 to stir uniformly, wherein CO is generated in the process2And H2O, the reaction formula is:
ClO-+H++HCOO-→CO2↑+H2O+Cl-
after the solution becomes clear, starting a heating rod 18 to heat and boil for 5-8 minutes, and using CO to remove CO2And H2O is discharged out of the iodine measuring flask 11 through the exhaust port 16 and to the outside of the case 15, preventing water vapor and corrosive gases from damaging electrical components (such as the touch screen 20, PLC, etc.) inside the case 15. When the temperature sensor 19 detects that the temperature in the iodine measuring flask 11 is lower than 60 ℃, 5ml of 20% sodium formate solution is added into the four-pump 4, the mixture is boiled for 3-5 minutes, then the mixture is cooled to the room temperature, and potassium iodide solution is added into the five-pump 5Adding 7 mL-10 mL of 6mol/L hydrochloric acid into the solution (containing 2 g-3 g of potassium iodide) by a six-pump 6, and uniformly stirring. Immediately titrating to light yellow by a 0.1mol/L sodium thiosulfate standard solution through a No. ten pump 10, adding a 5 mL0.5% starch solution into a No. seven pump, changing the liquid from transparent to dark blue, continuing to titrate, stopping titrating after a camera 14 recognizes that the solution is transparent, calculating data by a system, and discharging waste by a No. nine pump 9.
Example two:
fig. 4 shows embodiment two of the present invention.
Unlike the first embodiment, the present embodiment further includes an exhaust pump 17, the exhaust pump is connected to the exhaust pipe 25, and the exhaust pump 17 can more thoroughly exhaust CO in the iodine measuring flask 112。
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (6)
1. The utility model provides a bromide ion apparatus, includes casing (15) and establishes iodine bottle (11), agitator (13), heating device, camera (14), pump package in the casing, agitator (13) are used for stirring the material in iodine bottle (11), camera (14) set up in one side of iodine bottle (11), heating device is used for heating iodine bottle (11), the pump package is used for adding solution in to iodine bottle (11), its characterized in that, iodine bottle (11) are through the outside intercommunication of blast pipe (25) with casing (15).
2. The bromide ion meter of claim 1, further comprising an exhaust pump (17), wherein the exhaust pump (17) is connected to the exhaust line (25).
3. The bromide ion tester of claim 1 or 2, wherein the pump group comprises a first pump (1), a second pump (2), a third pump (3), a fourth pump (4), a fifth pump (5), a sixth pump (6), a seventh pump (7), an eighth pump (8), a ninth pump (9) and a tenth pump (10), and the first pump (1), the second pump (2), the third pump (3), the fourth pump (4), the fifth pump (5), the sixth pump (6), the seventh pump (7), the eighth pump (8), the ninth pump (9) and the tenth pump (10) are all connected with an iodine measuring flask (11).
4. The bromide ion meter according to claim 3, characterized in that, it further comprises a ten-channel valve (12), and the first pump (1), the second pump (2), the third pump (3), the fourth pump (4), the fifth pump (5), the sixth pump (6), the seventh pump (7), the eighth pump (8) and the ten-channel valve (10) are all connected with the iodine measuring flask (11) through the ten-channel valve (12).
5. The bromide ion meter according to claim 4, wherein the first pump (1), the second pump (2), the third pump (3), the fourth pump (4), the fifth pump (5), the sixth pump (6), the seventh pump (7), the eighth pump (8) and the ninth pump (9) are all peristaltic pumps, and the tenth pump (10) is an injection pump.
6. The bromide ion meter of claim 1 or 2, wherein the heating means comprises a heating rod (18), the heating rod (18) being disposed in an iodine vial (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121976139.1U CN216350550U (en) | 2021-08-20 | 2021-08-20 | Bromide ion tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121976139.1U CN216350550U (en) | 2021-08-20 | 2021-08-20 | Bromide ion tester |
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| CN216350550U true CN216350550U (en) | 2022-04-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588866A (en) * | 2021-08-20 | 2021-11-02 | 山东特检科技有限公司 | Bromine ion measuring device for extracting bromine from seawater |
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- 2021-08-20 CN CN202121976139.1U patent/CN216350550U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588866A (en) * | 2021-08-20 | 2021-11-02 | 山东特检科技有限公司 | Bromine ion measuring device for extracting bromine from seawater |
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