阅读说明：本技术 一种用于海水提溴的溴离子测定装置 (Bromine ion measuring device for extracting bromine from seawater ) 是由 曹怀祥 黄元凤 袁涛 江建博 于 2021-08-20 设计创作，主要内容包括：本发明涉及物料成分分析设备领域,具体是一种用于海水提溴的溴离子测定装置,包括壳体和设在壳体内的碘量瓶、搅拌器、加热装置、摄像机、泵组、冷却装置,所述碘量瓶通过排气管与壳体的外部连通；所述冷却装置包括冷却片,所述冷却片设置于碘量瓶的底部。本发明中的碘量瓶通过排气管与壳体的外部连通,使加入次氯酸钠溶液后产生CO-(2)能够及时排出碘量瓶并排放到壳体外部,不但能够防止Na-(2)S-(2)O-(3)分解、保证测定精度,而且能够防止水蒸气和腐蚀性气体损坏壳体内的电子元件。本发明将冷却片设置于碘量瓶的底部,既能够对碘量瓶内的溶液进行冷却,又不会影响摄像机对碘量瓶内图像的采集,保证检测精度。(The invention relates to the field of material composition analysis equipment, in particular to a bromide ion measuring device for extracting bromine from seawater, which comprises a shell, and an iodine measuring flask, a stirrer, a heating device, a camera, a pump set and a cooling device which are arranged in the shell, wherein the iodine measuring flask is communicated with the outside of the shell through an exhaust pipe; the cooling device comprises a cooling fin which is arranged at the bottom of the iodine measuring bottle. The iodine measuring bottle is communicated with the outside of the shell through the exhaust pipe, so that CO is generated after sodium hypochlorite solution is added 2 Can discharge the iodine measuring flask in time and discharge the iodine measuring flask to the outside of the shell, and can prevent Na 2 S 2 O 3 The device can decompose and ensure the measurement precision, and can prevent water vapor and corrosive gas from damaging electronic elements in the shell. According to the invention, the cooling fin is arranged at the bottom of the iodine measuring flask, so that the solution in the iodine measuring flask can be cooled, the collection of the image in the iodine measuring flask by the camera is not influenced, and the detection precision is ensured.)

1. A bromide ion measuring device for extracting bromine from seawater comprises a shell (15), an iodine measuring flask (11), a stirrer (13), a heating device, a camera (14) and a pump set, wherein the iodine measuring flask (11), the stirrer (13), the camera (14) and the pump set are arranged in the shell, the stirrer (13) is used for stirring materials in the iodine measuring flask (11), the camera (14) is arranged on one side of the iodine measuring flask (11), the heating device is used for heating the iodine measuring flask (11), the pump set is used for adding solution into the iodine measuring flask (11), and the bromide ion measuring device is characterized in that the iodine measuring flask (11) is communicated with the outside of the shell (15) through an exhaust pipe (34); still include cooling device, cooling device includes cooling fin (25), cooling fin (25) set up in the bottom of iodine bottle (11).

2. The bromide ion measuring device for extracting bromine from seawater as claimed in claim 1, further comprising an exhaust pump (17), wherein the exhaust pump (17) is connected with an exhaust pipe (34).

3. The material composition analyzing apparatus provided with a cooling device according to claim 1, wherein the cooling fin (25) comprises a heat conducting fin (26) and a heat exchanging pipe (27), and the heat exchanging pipe (27) is fixedly installed on the heat conducting fin (26); the cooling device further comprises a support (28), a fan (29), a cooling fin (30), a water tank (31) and a water pump (32), wherein the fan (29), the cooling fin (30) and the water tank (31) are all installed on the support (28), the cooling fin (30) is used for guiding out heat in the water tank (31), the fan (29) is used for blowing air to the cooling fin (30), and the heat exchange tube (27), the water pump (32) and the water tank (31) are connected through a pipeline to form a circulation loop.

4. The material composition analysis device provided with the cooling device according to claim 3, wherein the cooling fin (25) further comprises silica gel gaskets (33), and the silica gel gaskets (33) are positioned on the upper side and the lower side of the heat conducting fin (26).

5. The material composition analyzing apparatus provided with a cooling device according to claim 3, wherein the water pump (32) is provided in the water tank (31).

6. The bromide ion measuring device for extracting bromine from seawater according to any one of claims 1 to 5, 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).

7. The bromide ion measuring device for extracting bromine from seawater according to any one of claims 1 to 5, further comprising a ten-channel valve (12), 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 ten-channel valve (10) are connected with an iodine measuring bottle (11) through the ten-channel valve (12).

8. The bromide ion measuring device for extracting bromine from seawater according to claim 7, 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.

9. The bromide ion measurement device for seawater bromine extraction according to any one of claims 1-5, wherein the heating device comprises a heating rod (18), and the heating rod (18) is arranged in the iodine flask (11).

Technical Field

The invention relates to the field of material component analysis equipment, in particular to a bromide ion measuring device for extracting bromine from seawater.

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 Na₂S₂O₃The prior art does not address this problem, therefore.

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.

In addition, most of the existing material component analysis devices are naturally cooled, the cooling time is long, and the measurement efficiency is seriously influenced. CN110596058A discloses an automatic checkout device of fluorescence probe environmental parameter response characteristic, including sample cell, fluorescence light source, detector probe, agitator, heating plate, refrigeration piece etc. the sample cell is arranged in on the agitator, and fluorescence light source and detector probe are located the both sides of sample cell respectively, and the heating plate symmetry sets up in the both sides of sample cell, and the cooling plate symmetry sets up in the both sides of sample cell. When the device works, fluorescence excitation light from the fluorescence light source module irradiates into a to-be-detected liquid of a fluorescence probe in a sample cell to generate emission fluorescence light, the emission fluorescence light enters a detector probe through the fluorescence light condenser, and a detected fluorescence signal enters the detector controller through the detector data line. Because the cooling fins are symmetrically arranged on two sides of the sample cell, at least part of the sample cell can be shielded, and the detection precision is influenced.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a bromide ion measuring device for extracting bromine from seawater₂Can discharge the iodine measuring flask in time and discharge the iodine measuring flask to the outside of the shell, and can prevent Na₂S₂O₃The measurement accuracy is decomposed and ensured, and the water vapor and the corrosive gas can be prevented from damaging electronic elements in the shell; through setting up in the cooling fin of the bottom of iodine measuring flask, can enough cool off the solution in the iodine measuring flask, can not influence the camera again to the collection of image in the iodine measuring flask, guarantee to detect the precision.

The technical problem to be solved is realized by adopting the following technical scheme: a bromide ion measuring device for extracting bromine from seawater comprises a shell, an iodine measuring flask, a stirrer, a heating device, a camera, a pump set and a cooling device, wherein the iodine measuring flask, the stirrer, the heating device, the camera, the pump set and the cooling device are arranged in the shell; the cooling device comprises a cooling fin which is arranged at the bottom of the iodine measuring bottle.

Compared with the prior art, the bromide ion determination device for extracting bromine from seawater 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 invention 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 exhaust CO in the iodine measuring flask₂。

According to the technical scheme, the cooling fin comprises a heat conducting fin and a heat exchange tube, and the heat exchange tube is fixedly arranged on the heat conducting fin; the cooling device further comprises a support, a fan, a cooling fin, a water tank and a water pump, wherein the fan, the cooling fin and the water tank are all installed on the support, the cooling fin is used for guiding out heat in the water tank, the fan is used for blowing air to the cooling fin, and the heat exchange tube, the water pump and the water tank are connected through pipelines to form a circulation loop. For the semiconductor cooling plate, since the semiconductor itself has resistance, heat is generated when current passes through the semiconductor, thereby affecting heat transfer. But the heat between the two plates is also transferred through the air and the semiconductor material itself in a reverse direction. When the cold end and the hot end reach a certain temperature difference and the heat transfer amounts are equal, a balance point is reached, the positive heat transfer and the reverse heat transfer are mutually offset, and the temperature of the cold end and the hot end cannot be changed continuously. Therefore, the semiconductor chilling plates have limited effectiveness. Adopt this technical scheme, use water or other liquid as cooling medium, through lasting with the liquid heat transfer in the iodine bottle, then the rethread fan heat dissipation of blowing realizes high-efficient cooling.

According to the technical scheme, the cooling fin further comprises silica gel gaskets, and the silica gel gaskets are located on the upper side and the lower side of the heat conducting fin. In this technical scheme, the silica gel gasket plays heat conduction, skid-proof effect.

According to the technical scheme, the water pump is arranged in the water tank. By adopting the technical scheme, the water pump can be prevented from being damaged due to overheating.

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 invention 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 diagram of a bromide ion measuring device for extracting bromine from seawater in the first embodiment.

Fig. 2 is a schematic view of the pipeline connection of the bromide ion measuring device for extracting bromine from seawater 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 diagram of a cooling device according to a first embodiment.

FIG. 5 is an exploded perspective view of a cooling fin according to one embodiment.

Fig. 6 is a schematic structural diagram of a bromide ion measuring device for extracting bromine from seawater 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 pump, a seventh pump, a 8 pump, an eighth pump, a 9 pump, a ninth pump, a 10 pump, a tenth pump, a 11 pump, an iodine measuring flask, a 12 pump, a ten-channel valve, a 13 pump, a stirrer, a 14 pump, a camera, a 15 pump, a shell, a 16 pump, an exhaust port, a 17 pump, an exhaust pump, a 18 pump, a heating rod, a 19 pump, a temperature sensor, a 20 pump, a touch screen, a 21 pump, an iodine measuring bottle cap, a 22 pump inlet, a liquid injection port, a 23 pump inlet, a temperature sensor mounting port, a 25 pump inlet, a cooling fin, a 26 pump inlet, a heat conducting fin, a 27 pump inlet, a heat exchange tube, a 28 pump inlet, a bracket, a 29 pump, a fan, a 30 pump inlet, a cooling fin 31 pump inlet, a water tank, a 32 pump inlet, a silica gel gasket, a 34 and an exhaust pipe.

Detailed Description

The following examples are further illustrative of the present invention, but the present invention is not limited thereto. The present invention is relatively complicated, and therefore, the detailed description of the embodiments is only for the point of the present invention, and the prior art can be adopted for the present invention.

The first embodiment is as follows:

fig. 1 to 5 show a first embodiment of the present invention.

The embodiment provides a bromide ion measuring device for extracting bromine from seawater, 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, a temperature sensor 19 and a cooling device, 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 cooling device 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 34.

The cooling device comprises a cooling fin 25, a bracket 28, a fan 29, a cooling fin 30, a water tank 31 and a water pump 32. The cooling fin 25 is arranged at the bottom of the iodine measuring flask 11, as shown in fig. 5, the cooling fin 25 comprises a heat conducting fin 26, a heat exchange tube 27 and a silica gel gasket 33, the heat exchange tube 27 is fixedly arranged on the heat conducting fin 26, and the silica gel gasket 33 is arranged on the upper side and the lower side of the heat conducting fin 26.

The fan 29, the heat sink 30 and the water tank 31 are all mounted on the bracket 28, the heat sink 30 is used for guiding out heat in the water tank 31, and the fan 29 is used for blowing air to the heat sink 30. The water pump 32 is provided in the water tank 31. The heat exchange pipe 27, the water pump 32 and the water tank 31 are connected through a pipeline to form a circulation loop.

The cooling device uses water or other liquid as a cooling medium, and realizes efficient cooling through continuous heat exchange with the liquid in the iodine measuring flask 21 and then through the fan 29 for heat dissipation by blowing.

The bromide ion determination device for extracting bromine from seawater in the embodiment is used for determining the bromide ion content in seawater or brine, and the specific determination 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. And starting a cooling device to cool the solution, when a temperature sensor 19 detects that the temperature in the iodine measuring flask 11 is lower than 60 ℃, adding 5mL of 20% sodium formate solution into a fourth pump 4, boiling for 3-5 minutes, starting the cooling device to cool to room temperature, adding 2 g-3 g of potassium iodide solution into a fifth pump 5, adding 7 mL-10 mL of 6mol/L hydrochloric acid into a sixth 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. 6 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 34, 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.