CN217351557U - Alkaline solution generating device for chemical instrument - Google Patents
Alkaline solution generating device for chemical instrument Download PDFInfo
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- CN217351557U CN217351557U CN202221021235.5U CN202221021235U CN217351557U CN 217351557 U CN217351557 U CN 217351557U CN 202221021235 U CN202221021235 U CN 202221021235U CN 217351557 U CN217351557 U CN 217351557U
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Abstract
The utility model belongs to the technical field of analytical instruments, and relates to a basic solution generating device for a chemical instrument, which comprises a reaction shell and two anion exchange membranes which are arranged in parallel on the axial direction of the reaction shell; the two anion exchange membranes are both contacted with the inner wall of the reaction shell, and the reaction shell is sequentially divided into an anode electrolysis chamber, an anion exchange resin chamber and a cathode electrolysis chamber by the two anion exchange membranes; an anolyte inlet is arranged on the positive electrolysis chamber; the cathode electrolysis chamber is provided with a cathode liquid outlet communicated with the anode liquid inlet; the anion exchange resin chamber is respectively provided with a liquid inlet and an alkali outlet communicated with the liquid inlet. The utility model discloses simple structure, ability automatic production alkaline solution save supervisory routine and cost, guarantee personnel's safety, practical convenient.
Description
Technical Field
The utility model belongs to the technical field of analytical instrument, a alkaline solution generating device is used to chemistry instrument is related to.
Background
In chemical analyzers, it is often necessary to add a reaction medium to a basic solution, such as ammonia nitrogen analyzers, often using a strongly basic chemical reagent (sodium hydroxide) as the expulsion reagent to facilitate the conversion of ammonium ions to NH 3 Thereby completing the analytical measurement. The existing strong alkaline chemical reagent is added in advance by manual work and then is quantitatively added into a chemical analysis instrument, however, as is well known, the strong alkaline chemical reagent has strong corrosivity and can be contacted with the strong alkaline chemical reagent in the manual adding process, so that the strong alkaline chemical reagent is added into the chemical analysis instrument in a contacting wayThe danger is generated, and the safety accident is caused; and according to the requirements of the industry, for the strong alkaline reagent, strict procedures and systems are required from purchase and management, special personnel is required for the reagent, the management and use process is complex, and the investment cost is high.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a chemistry is alkaline solution generating device for instrument, simple structure, ability automatic production alkaline solution save supervisory routine and cost, guarantee personnel's safety, practical convenient.
In order to realize the purpose, the utility model discloses a technical scheme be:
the alkaline solution generating device for the chemical instrument is characterized by comprising a reaction shell and two anion exchange membranes which are arranged on the axial direction of the reaction shell in parallel; the two anion exchange membranes are both contacted with the inner wall of the reaction shell, and the reaction shell is sequentially divided into an anode electrolysis chamber, an anion exchange resin chamber and a cathode electrolysis chamber by the two anion exchange membranes; an anolyte inlet is arranged on the positive electrolysis chamber; the cathode electrolysis chamber is provided with a cathode liquid outlet communicated with the anode liquid inlet; the anion exchange resin chamber is respectively provided with a liquid inlet and an alkali outlet communicated with the liquid inlet.
Further, an anion exchange resin layer is arranged in the anion exchange resin chamber.
Further, the anion exchange resin layer is strong base type anion exchange resin.
Furthermore, electrolytic electrode plates are arranged in the positive electrolytic chamber and the negative electrolytic chamber.
Further, the electrolytic electrode plate is a platinum electrode plate.
Further, the alkaline solution generating device for the chemical instrument further comprises a power supply; the power supply is respectively connected with the electrolytic electrode plate in the positive electrolytic chamber and the electrolytic electrode plate in the negative electrolytic chamber.
Furthermore, the voltage of the power supply is 24V, and the current is 0-1A.
Further, the alkaline solution generating device for the chemical instrument further comprises a neutral solution tank, a sample injection pump and a three-way valve which are sequentially communicated; the three-way valve is respectively communicated with the anolyte inlet and the liquid inlet.
Furthermore, the alkaline solution generating device for the chemical instrument further comprises an alkaline solution tank communicated with the alkaline outlet.
Furthermore, the alkaline solution generating device for the chemical instrument further comprises a waste liquid tank communicated with the cathode liquid outlet.
The utility model has the advantages that:
1. in the utility model, the anion exchange resin chamber, the cathode electrolysis chamber and the anode electrolysis chamber are arranged in the reaction shell, and the corresponding strong alkaline solution is directly prepared from the neutral salt solution through the anion exchange resin chamber, so that the management cost of the alkaline reagent is saved, and the safety is ensured; meanwhile, the anion exchange resin in the anion exchange resin chamber is regenerated through the anion electrolysis chamber and the cation electrolysis chamber, so that the reduction of the activity of the anion exchange resin is avoided, and the production of alkaline solution is improved.
2. The utility model discloses with anion exchange resin room, negative electrolysis room, positive electrolysis room integration in a reaction housing, equipment structure is simple, need not to change consumptive material spare part, need not artifical intervention regeneration resin, reduces later maintenance work load, and is practical convenient.
3. The device provided by the utility model, degree of automation is high, can miniaturize and integrate to the chemical production in, convenient and reliable.
Drawings
Fig. 1 is a schematic structural diagram of the device provided by the present invention;
wherein:
1-a neutral liquid tank; 2-a sample pump; 3-three-way valve; 4-anion exchange resin chamber; 5-electrolytic electrode plate; 6-anion exchange membrane; 7-positive electrolysis chamber; 8-a cathodic electrolysis chamber; 9-a power supply; 10-a lye tank; 11-waste liquid tank.
Detailed Description
The present invention will now be described in detail with reference to the drawings and examples.
Examples
Referring to fig. 1, the alkaline solution generator for a chemical meter provided in this embodiment includes a reaction housing and two anion exchange membranes 6 disposed in parallel on an axial direction of the reaction housing; the two anion exchange membranes 6 are both contacted with the inner wall of the reaction shell, and the reaction shell is divided into an anode electrolysis chamber 7, an anion exchange resin chamber 4 and an anion electrolysis chamber 8 by the two anion exchange membranes 6 in sequence; an anolyte inlet is arranged on the anode electrolysis chamber 7; the cathode electrolysis chamber 8 is provided with a cathode liquid outlet communicated with the anode liquid inlet; the anion exchange resin chamber 4 is respectively provided with a liquid inlet and an alkali outlet communicated with the liquid inlet.
In this embodiment, the reaction shell is a rectangular sealed box body, or a tank body with an opening at the top; two anion exchange membranes 6 are arranged in the reaction shell axial direction in parallel, two anion exchange membranes 6 all contact with reaction shell bottom and reaction shell top, thereby divide into three independent cavity with the reaction shell, and three independent cavity is positive electrolysis chamber 7, anion exchange resin room 4 and anion exchange chamber 8 from the left side from the right side in proper order, because anion exchange membrane 6's anion permeability, anion exchange resin room 4 communicates with positive electrolysis chamber 7 and the negative electrolysis chamber 8 of the 4 left and right sides of anion exchange resin room respectively through anion exchange membrane 6, be convenient for anion to flow through.
In this embodiment, an anion exchange resin layer is provided in the anion exchange resin chamber 4. The anion exchange resin layer is strong base type anion exchange resin. The resin model number was 201x 7.
In this embodiment, the electrolytic electrode plates 5 are provided in both the anode electrolytic chamber 7 and the cathode electrolytic chamber 8. The electrolytic electrode plate 5 is a platinum electrode plate because of the problems of conductivity, corrosion resistance and cost in consideration of the material of the electrolytic electrode.
In this embodiment, the alkaline solution generator for chemical meters further comprises a power supply 9; the power supply 9 is connected to the electrolytic electrode plate 5 in the anode electrolytic cell 7 and the electrolytic electrode plate 5 in the cathode electrolytic cell 8, respectively. The power supply 9 is a constant current power supply, and should select a constant current power supply with 24V direct voltage and adjustable current, and the adjustable range of the current is 0-1A.
In this embodiment, the alkaline solution generating device for the chemical instrument further comprises a neutral liquid tank 1, a sample injection pump 2 and a three-way valve 3 which are sequentially communicated; the three-way valve 3 is respectively communicated with the anolyte inlet and the liquid inlet. The alkaline solution generating device for the chemical instrument further comprises an alkaline solution tank 10 communicated with the alkaline outlet. The alkaline solution generating device for the chemical instrument further comprises a waste liquid tank 11 communicated with the cathode liquid outlet.
The generation of the alkaline agent of sodium hydroxide NaOH is taken as an example to illustrate the usage process of the alkaline solution generator for chemical meters provided by the embodiment. The method specifically comprises the following steps:
firstly, a NaCl solution is placed in a neutral solution tank 1, a power supply 9 is switched on, and the NaCl solution is divided into two paths after passing through a sample injection pump 2 and a three-way valve 3.
Then, the first path of NaCl solution enters the anion exchange resin chamber 4 from the liquid inlet, and the NaCl solution contains cations (Na) + ) And anions (Cl) - ) Wherein the anion (Cl) - ) Exchange with hydroxyl ions (OH-) originally adsorbed on the anion exchange resin, and anion (Cl) in NaCl solution - ) Is absorbed on the anion exchange resin in an exchange way, and the originally absorbed hydroxyl ions (OH-) on the anion exchange resin are replaced and are combined with cations (Na) in NaCl solution + ) The NaOH solution is generated by combination, and then is discharged into the lye tank 10 from the lye outlet.
Meanwhile, the second path of NaCl solution enters the positive electrolysis chamber 7 from the anode liquid inlet, and the NaCl solution contains cations (Na) + ) And anions (Cl) - ) When entering the negative electrolytic chamber 8 through the positive electrolytic chamber 7, the electrolyte is discharged to a waste liquid tank 11 from a cathode liquid outlet; because the electrolytic electrode plates 5 are arranged in the anode electrolytic chamber 7 and the cathode electrolytic chamber 8, the solution in the electrolytic cavity generates hydroxide ions (OH) in the cathode electrolytic chamber 8 under the action of the power supply 9 by the electrolytic electrode plates 5 - ) Hydroxyl ion (OH) - ) Passing through anion exchange membrane 6 and entering anion exchange resin chamber 4 to replace anions (Cl) in NaCl solution gradually on the anion exchange resin - ) The exchanged anions, which are used for the purpose of anion exchange resin regeneration, are replaced by hydroxyl ions (OH) - ) Regeneration of exchanged anionsZi (Cl) - ) And then enters the anode electrolytic chamber 7 through the anion exchange membrane 6, flows to the cathode electrolytic chamber 8, and is discharged to the waste liquid tank 11 from the cathode liquid outlet.
In this embodiment, the anion exchange resin in the anion exchange resin chamber 4 can be deactivated and regenerated to achieve a dynamic balance effect, and the anion exchange resin cannot be deactivated under the condition of continuous power supply and can process a neutral salt solution in real time, so as to achieve the purpose of continuously generating an alkaline solution and improve the yield of the alkaline solution.
To sum up, the utility model provides a alkaline solution generating device is used to chemical instrumentation, small, can with the system integration that needs alkaline reagent, during the implementation, just can prepare corresponding alkaline solution automatically through neutral salt solution, avoid the emergence of various operating accidents, guarantee operating personnel safety, practice thrift administrative cost, and the device easily popularizes and applies.
Claims (10)
1. The alkaline solution generating device for the chemical instrument is characterized by comprising a reaction shell and two anion exchange membranes (6) which are arranged on the axial direction of the reaction shell in parallel; the two anion exchange membranes (6) are both contacted with the inner wall of the reaction shell, and the reaction shell is divided into an anode electrolysis chamber (7), an anion exchange resin chamber (4) and a cathode electrolysis chamber (8) by the two anion exchange membranes (6) in sequence; an anolyte inlet is arranged on the positive electrolysis chamber (7); the cathode electrolysis chamber (8) is provided with a cathode liquid outlet communicated with the anode liquid inlet; the anion exchange resin chamber (4) is respectively provided with a liquid inlet and an alkali outlet communicated with the liquid inlet.
2. A chemical instrumentation alkaline solution generating apparatus as claimed in claim 1, wherein an anion exchange resin layer is provided in said anion exchange resin chamber (4).
3. A basic solution generating device for chemical meters according to claim 2, characterized in that said anion exchange resin layer is a strong base type anion exchange resin.
4. The alkaline solution generator for chemical meters as claimed in claim 1, 2 or 3, wherein the electrolytic electrode plates (5) are provided in both the anode electrolytic chamber (7) and the cathode electrolytic chamber (8).
5. The alkaline solution generator for chemical meters as claimed in claim 4, wherein said electrolytic electrode plate (5) is a platinum electrode plate.
6. The alkaline solution generator for chemical meters as claimed in claim 5, further comprising a power source (9); the power supply (9) is respectively connected with the electrolytic electrode plate (5) in the positive electrolytic chamber (7) and the electrolytic electrode plate (5) in the negative electrolytic chamber (8).
7. The alkaline solution generator for chemical meters as claimed in claim 6, wherein the voltage of the power supply (9) is 24V and the current is 0-1A.
8. The alkaline solution generating device for the chemical instrument as claimed in claim 7, further comprising a neutral liquid tank (1), a sample injection pump (2) and a three-way valve (3) which are sequentially communicated; the three-way valve (3) is respectively communicated with the anolyte inlet and the liquid inlet.
9. The alkaline solution generator for chemical meters as claimed in claim 8, further comprising a lye tank (10) communicating with the lye outlet.
10. A chemical meter alkaline solution generator as claimed in claim 9, characterized in that it further comprises a waste liquid tank (11) communicating with the catholyte outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221021235.5U CN217351557U (en) | 2022-04-29 | 2022-04-29 | Alkaline solution generating device for chemical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221021235.5U CN217351557U (en) | 2022-04-29 | 2022-04-29 | Alkaline solution generating device for chemical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217351557U true CN217351557U (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221021235.5U Active CN217351557U (en) | 2022-04-29 | 2022-04-29 | Alkaline solution generating device for chemical instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217351557U (en) |
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2022
- 2022-04-29 CN CN202221021235.5U patent/CN217351557U/en active Active
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