CN218584711U - Indicating electrode with internal reference element sleeve - Google Patents
Indicating electrode with internal reference element sleeve Download PDFInfo
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- CN218584711U CN218584711U CN202222933966.3U CN202222933966U CN218584711U CN 218584711 U CN218584711 U CN 218584711U CN 202222933966 U CN202222933966 U CN 202222933966U CN 218584711 U CN218584711 U CN 218584711U
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- sleeve
- reference element
- shell
- internal reference
- indicating electrode
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Abstract
The utility model discloses an indicating electrode with an inner reference element sleeve, which comprises a shell and a sleeve; an inner reference element is arranged inside the shell, and one end of the inner reference element is close to the end part of the shell; the other end of the inner reference element is connected with a wire, a sleeve is arranged on the outer side of the wire, and at least part of the sleeve is arranged on the outer side of the inner reference element; the inside reference liquid that is provided with of shell, this application can carry out physical restraint to the internal reference element part that drops through the sheathed tube mode of teflon, makes the AgCl granule that breaks away from deposit in the teflon intraductal side, does not escape, and the cover to the sensitive membrane of glass after using the sleeve pipe to reduce internal reference Ag/AgCl to drop, and then ensures pH sensor's measurement accuracy.
Description
Technical Field
The utility model belongs to pH sensor field, concretely relates to indicating electrode with interior reference cell sheathed tube.
Background
The pH value sensor is a high intelligent on-line continuous monitor and consists of two parts, namely a sensor and a secondary meter. Three or two composite electrodes can be matched to meet various use places. The pH value measuring device is matched with pure water and ultrapure water electrodes, and can be suitable for measuring the pH value of water with the conductivity of less than 3 mu s/cm (such as chemical make-up water, saturated steam, condensed water and the like).
In the process of long-term use, ag/AgCl can be increased along with use, some falling is generated, falling particles can cover the inner side of the glass sensitive film, the detection potential is further influenced, the test error is caused, in the use process, the inner reference element can continuously fall off from the conduction element along with the lapse of time and the increase of the use temperature, the coverage of the glass sensitive film after falling causes different sensing areas inside and outside the glass sensitive film, and the measured value deviation is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an indicating electrode with interior reference cell sheathed tube to solve the technical problem who mentions in the above-mentioned background art.
In order to realize above-mentioned purpose, the utility model discloses an indicating electrode with interior reference cell sheathed tube, include: a housing and a sleeve;
an inner reference element is arranged inside the shell, and one end of the inner reference element is close to the end part of the shell;
the other end of the inner reference element is connected with a wire, a sleeve is arranged on the outer side of the wire, and at least part of the sleeve is arranged on the outer side of the inner reference element;
an internal reference liquid is arranged in the shell.
Preferably, the sleeve is a teflon sleeve.
As a preferable scheme, two ends of the sleeve are sealed by silica gel.
Preferably, the internal reference element is made of silver or silver chloride.
Preferably, one end of the outer shell close to the inner reference element is provided with a sensitive glass membrane.
Preferably, the free end of the housing is a convex curved surface structure.
Compared with the prior art, the utility model has the advantages of it is following:
this application can carry out physical restraint to the part that drops with the sheathed tube mode of teflon, makes the AgCl granule that breaks away from deposit in the teflon intraductal side, does not escape, uses the cover to the sensitive membrane of glass after reference Ag/AgCl drops in the sleeve pipe reduction, and then ensures pH sensor's measurement accuracy.
Drawings
Fig. 1 is a schematic structural diagram of an indicating electrode with an internal reference cell sleeve according to an embodiment of the present invention.
The device comprises a power line 1, a wire 2, a shell 3, an internal reference element 4, an internal reference liquid 5 and a sleeve.
Detailed Description
The technical solution of the present invention will be explained in detail by the following embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
An indicating electrode with an internal reference cell sleeve according to an embodiment of the invention is described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, an indicating electrode with an internal reference cell sleeve according to an embodiment of the present invention includes: the housing 2 and the sleeve 5; an inner reference element 3 is arranged in the shell 2, and one end of the inner reference element 3 is close to the end part of the shell 2;
the other end of the inner reference element 3 is connected with an electric wire 1, a sleeve 5 is arranged on the outer side of the electric wire 1, and at least part of the sleeve 5 is arranged on the outer side of the inner reference element 3;
the inner reference liquid 4 is arranged in the shell 2.
According to an embodiment of the invention, the sleeve 5 is a teflon sleeve.
According to an embodiment of the invention, the two ends of the sleeve 5 are sealed with silicone.
According to the embodiment of the invention, the internal reference element 3 is made of silver or silver chloride.
According to the embodiment of the invention, one end of the shell 2 close to the inner reference element 3 is provided with a sensitive glass film, and the free end of the shell 2 is of a convex curved surface structure.
According to the embodiment of the invention, the sleeve 5 is a Teflon sleeve, and two ends of the sleeve 5 are sealed by silica gel.
Specifically, this application can carry out physical restraint to the part that drops with the mode of teflon sleeve pipe, makes the AgCl granule that breaks away from deposit in the teflon intraductal side, does not escape, uses sleeve pipe 5 to reduce interior reference Ag/AgCl and to the cover of glass sensitive film after dropping, and then ensures pH sensor's measurement accuracy.
Further, the internal reference element 3 is silver or silver chloride, and the important application of silver chloride in electrochemistry is a silver-silver chloride-reference electrode, which is not polarized.
According to the embodiment of the invention, the connecting block comprises a first end part and a second end part, the first end part and the second end part are both in a cylindrical structure, the size of the first end part is larger than that of the second end part, the connector 1 is connected to one end of the first end part, and the shell is connected to one end of the second end part.
Structure of pH electrode: the pH electrode was the first ion-selective electrode used to determine the acidity of solutions. The basic structure of the electrode is composed of three major parts, namely an indicator electrode, a reference electrode and a temperature system.
The indicating electrode includes: the sensing instrument comprises a sensitive glass film (a metal conductor is in direct contact with the film), an internal reference element 3 (Ag/AgCl), an internal reference solution and a shell, and the potential sensed by the internal reference element 3 is transmitted to the instrument through a lead.
The reference electrode includes: the seepage interface (the microporous structure of ceramics, teflon and other materials), the external reference element (Ag/AgCl), the external reference gel and the shell, and the potential sensed by the external reference element is transmitted to the instrument through a lead.
The temperature system includes: the resistance value of the thermistor (PT 1K, PT100N, TC30K and the like), the magnesium oxide powder and the shell is fed back to the instrument through a lead and converted into temperature display.
To sum up, the utility model discloses an indicating electrode with interior reference element sheathed tube through indisputable fluorine dragon sleeve pipe 5's mode, can retrain the cover to sensitive membrane after the AgCl granule breaks away from effectively, increases the accuracy nature of product survey value, improves and produces property ability.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. An indicator electrode with an internal reference cell sleeve, comprising: a housing and a sleeve; it is characterized in that the preparation method is characterized in that,
an inner reference element is arranged inside the shell, and one end of the inner reference element is close to the end part of the shell;
the other end of the inner reference element is connected with a wire, a sleeve is arranged on the outer side of the wire, and at least part of the sleeve is arranged on the outer side of the inner reference element;
an internal reference liquid is arranged in the shell.
2. The indicating electrode with internal reference cell sleeve of claim 1 wherein said sleeve is a teflon sleeve.
3. The indicating electrode with internal reference cell sleeve of claim 1 wherein the ends of said sleeve are sealed with silicone.
4. The indicating electrode with internal reference element sleeve as defined in claim 1, wherein the internal reference element is made of silver or silver chloride.
5. The indicating electrode with internal reference cell sleeve of claim 1 wherein the end of the housing near the internal reference cell is provided with a sensitive glass membrane.
6. The indicating electrode with internal reference cell sleeve according to claim 1, wherein the free end of the outer shell has a convex curved surface structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222933966.3U CN218584711U (en) | 2022-11-04 | 2022-11-04 | Indicating electrode with internal reference element sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222933966.3U CN218584711U (en) | 2022-11-04 | 2022-11-04 | Indicating electrode with internal reference element sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218584711U true CN218584711U (en) | 2023-03-07 |
Family
ID=85377747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222933966.3U Active CN218584711U (en) | 2022-11-04 | 2022-11-04 | Indicating electrode with internal reference element sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218584711U (en) |
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2022
- 2022-11-04 CN CN202222933966.3U patent/CN218584711U/en active Active
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