CN212622376U - Film-pressed type chloride ion selective electrode - Google Patents
Film-pressed type chloride ion selective electrode Download PDFInfo
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- CN212622376U CN212622376U CN202020811977.2U CN202020811977U CN212622376U CN 212622376 U CN212622376 U CN 212622376U CN 202020811977 U CN202020811977 U CN 202020811977U CN 212622376 U CN212622376 U CN 212622376U
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- Prior art keywords
- electrode
- cap
- film
- chloride ion
- mixed crystal
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims abstract description 42
- 239000013078 crystal Substances 0.000 claims abstract description 20
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000741 silica gel Substances 0.000 claims abstract description 5
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 17
- 229920001971 elastomer Polymers 0.000 claims description 9
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 abstract description 9
- 230000007774 longterm Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 4
- 238000009776 industrial production Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model belongs to the field of ion selective electrodes, and particularly discloses a film pressing type chloride ion selective electrode, which comprises an outer support tube and a silver wire, wherein the joint of an electrode cap and the outer support tube is hermetically connected through a first fluororubber ring, and an electrode shielding wire is arranged in the electrode cap; the outer support tube is filled with silver powder, one end of the outer support tube is provided with a threaded connector, a film cap is installed on the threaded connector in a threaded mode, a chloride ion mixed crystal film is arranged in the film cap, and the chloride ion mixed crystal film is embedded on the inner wall of the film cap through a silica gel gasket. The utility model discloses a chloride ion selectivity electrode does not receive external disturbance basically on the ability site response, and temperature compensation calculates more accurately. More importantly, the combined packaging structure is not easy to seep liquid or drop the chloride ion mixed crystal film, can avoid pollution and corrosion to cause structural damage, ensures accurate reading and long-term stability of the electrode, has extremely less maintenance amount, and is suitable for monitoring the concentration of chloride ions in industrial production.
Description
Technical Field
The utility model relates to an ion selectivity electrode field specifically is a press mold type chloride ion selectivity electrode.
Background
An ion-selective electrode is an electrochemical sensor that uses the membrane potential to determine the activity or concentration of ions in a solution, and when it is contacted with a solution containing the ions to be measured, a membrane potential is generated at the phase interface between its sensitive membrane and the solution that is directly related to the activity of the ions. The ion selective electrode is also called membrane electrode, and the electrode has a layer of special electrode membrane, the electrode membrane has selective response to specific ions, and the relation between the potential of the electrode membrane and the content of ions to be measured accords with the Nernst formula. The electrode has the characteristics of good selectivity and short balancing time, and is the most used indicating electrode for potential analysis.
In the existing internal assembly process of the chloride ion selective working electrode, a glue adhesion type mode is mostly adopted. The internal reference system of the chloride ion electrode manufactured by the structure is easy to seep liquid or drop the chloride ion mixed crystal film, so that serious measurement errors and long-term data drift are caused, and the bonding type chloride ion mixed crystal film is corroded and abraded by external test liquid and shrinks among materials due to temperature change, so that the local sealing performance is insufficient, the function of the electrode is invalid, and the service life is short.
Disclosure of Invention
An object of the utility model is to provide a press mold type chloride ion selectivity electrode to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a film pressing type chloride ion selective electrode comprises an outer supporting tube and a silver wire embedded in the center of the outer supporting tube, wherein an electrode cap is installed at one end of the outer supporting tube, the joint of the electrode cap and the outer supporting tube is hermetically connected through a first fluororubber ring, and an electrode shielding wire is installed in the electrode cap; the silver powder is filled in the outer support tube, one end, far away from the electrode cap, of the outer support tube is provided with a threaded connector, a film cap is installed on the threaded connector in a threaded mode, a chloride ion mixed crystal film is arranged in the film cap, and the chloride ion mixed crystal film is embedded on the inner wall of the film cap through a silica gel gasket which is sleeved outside the chloride ion mixed crystal film.
Preferably, the surface of the electrode cap is provided with PG13.5 threads.
Preferably, the electrode shielding wire extends out of the electrode cap, an anti-twisting sheath sleeved outside the electrode shielding wire is installed at the outer port of the electrode cap, and the anti-twisting sheath is made of PVC or rubber materials.
Preferably, threaded connection head is the communicating tubular structure of both ends opening, and the cover is equipped with the second fluorine rubber circle on the threaded connection head, and the second fluorine rubber circle is used for membrane cap and threaded connection head zonulae occludens.
Preferably, the middle part of the outer end face of the membrane cap is provided with a through hole for exposing the chloride ion mixed crystal membrane.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a chloride ion selective electrode of novel structure does not receive external disturbance basically on the response of nernst potential, and temperature compensation calculates more accurately. More importantly the utility model discloses a this kind of modular packaging structure of chloride ion selectivity electrode is difficult for sepage or chloride ion mixed crystal membrane to drop, can avoid polluting the corruption and cause structural damage, guarantees electrode accurate reading and long-term stable, and the maintenance volume is few, is applicable to the monitoring of chloride ion concentration in the industrial production.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. an outer support tube; 2. silver wire; 3. an electrode cap; 4. a first fluororubber ring; 5. an electrode shield wire; 6. a twist-proof sheath; 7. silver powder; 8. a threaded connector; 9. a membrane cap; 10. a second fluororubber ring; 11. a silica gel gasket; 12. and (3) a chloride ion mixed crystal film.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1, the present invention provides a technical solution: a film pressing type chloride ion selective electrode comprises an outer supporting tube 1 and a silver wire 2 embedded in the center of the outer supporting tube 1, wherein an electrode cap 3 is installed at one end of the outer supporting tube 1, the joint of the electrode cap 3 and the outer supporting tube 1 is hermetically connected through a first fluororubber ring 4, and an electrode shielding wire 5 is installed in the electrode cap 3; silver powder 7 is filled in the outer support tube 1, the end, far away from the electrode cap 3, of the outer support tube 1 is provided with a threaded connector 8, a film cap 9 is installed on the threaded connector 8 in a threaded mode, a chloride ion mixed crystal film 12 is arranged in the film cap 9, and the chloride ion mixed crystal film 12 is embedded on the inner wall of the film cap 9 through a silica gel gasket 11 sleeved outside the chloride ion mixed crystal film 12.
Further, the surface of the electrode cap 3 is provided with PG13.5 threads.
Furthermore, the electrode shielding wire 5 extends out of the electrode cap 3, an anti-twisting sheath 6 sleeved outside the electrode shielding wire 5 is installed at the outer port of the electrode cap 3, and the anti-twisting sheath 6 is made of PVC or rubber materials, so that the electrode shielding wire 5 is effectively prevented from being bent and broken.
Further, threaded connection head 8 is the communicating tubular structure of both ends opening, and the cover is equipped with second fluorine rubber circle 10 on the threaded connection head 8, and second fluorine rubber circle 10 is used for membrane cap 9 and threaded connection head 8 zonulae occludens.
Further, the middle part of the outer end face of the film cap 9 is provided with a through hole for exposing the chloride ion mixed crystal film 12.
The utility model provides a chloride ion selective electrode of novel structure does not receive external disturbance basically on the response of nernst potential, and temperature compensation calculates more accurately. More importantly the utility model discloses a this kind of modular packaging structure of chloride ion selectivity electrode is difficult for sepage or chloride ion mixed crystal membrane to drop, can avoid polluting the corruption and cause structural damage, guarantees electrode accurate reading and long-term stable, and the maintenance volume is few, is applicable to the monitoring of chloride ion concentration in the industrial production.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A film-pressing type chloride ion selective electrode is characterized by comprising an outer supporting tube (1) and a silver wire (2) embedded in the center of the outer supporting tube (1), wherein an electrode cap (3) is installed at one end of the outer supporting tube (1), the joint of the electrode cap (3) and the outer supporting tube (1) is hermetically connected through a first fluororubber ring (4), and an electrode shielding wire (5) is installed in the electrode cap (3); silver powder (7) are filled in the outer support tube (1), one end of the outer support tube (1) far away from the electrode cap (3) is provided with a threaded connector (8), a film cap (9) is installed on the threaded connector (8) in a threaded mode, a chloride ion mixed crystal film (12) is arranged in the film cap (9), and the chloride ion mixed crystal film (12) is embedded on the inner wall of the film cap (9) through a silica gel gasket (11) which is sleeved outside the chloride ion mixed crystal film (12).
2. A squeeze film type chloride selective electrode according to claim 1, characterized in that: the surface of the electrode cap (3) is provided with PG13.5 threads.
3. A squeeze film type chloride selective electrode according to claim 1, characterized in that: the electrode shielding wire (5) extends out of the electrode cap (3), an anti-twisting sheath (6) sleeved outside the electrode shielding wire (5) is installed at the outer port of the electrode cap (3), and the anti-twisting sheath (6) is made of PVC or rubber materials.
4. A squeeze film type chloride selective electrode according to claim 1, characterized in that: threaded connection head (8) are the communicating tubular structure of both ends opening, and the cover is equipped with second fluorine rubber circle (10) on threaded connection head (8), and second fluorine rubber circle (10) are used for membrane cap (9) and threaded connection head (8) zonulae occludens.
5. A squeeze film type chloride selective electrode according to claim 1, characterized in that: the middle part of the outer end face of the membrane cap (9) is provided with a through hole for exposing the chloride ion mixed crystal membrane (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020811977.2U CN212622376U (en) | 2020-05-15 | 2020-05-15 | Film-pressed type chloride ion selective electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020811977.2U CN212622376U (en) | 2020-05-15 | 2020-05-15 | Film-pressed type chloride ion selective electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212622376U true CN212622376U (en) | 2021-02-26 |
Family
ID=74725014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020811977.2U Active CN212622376U (en) | 2020-05-15 | 2020-05-15 | Film-pressed type chloride ion selective electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212622376U (en) |
-
2020
- 2020-05-15 CN CN202020811977.2U patent/CN212622376U/en active Active
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