CN215005321U - Probe for water quality detection - Google Patents
Probe for water quality detection Download PDFInfo
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- CN215005321U CN215005321U CN202120471703.8U CN202120471703U CN215005321U CN 215005321 U CN215005321 U CN 215005321U CN 202120471703 U CN202120471703 U CN 202120471703U CN 215005321 U CN215005321 U CN 215005321U
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- 239000000523 sample Substances 0.000 title claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000001514 detection method Methods 0.000 title abstract description 35
- 229910021397 glassy carbon Inorganic materials 0.000 claims abstract description 64
- 238000009434 installation Methods 0.000 claims abstract description 42
- 239000011810 insulating material Substances 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 14
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910021607 Silver chloride Inorganic materials 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 3
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
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- OLGGVYJRMKGTGP-UHFFFAOYSA-N 7-oxabicyclo[4.1.0]hepta-2,4-dien-6-ol Chemical compound C1=CC=CC2(O)C1O2 OLGGVYJRMKGTGP-UHFFFAOYSA-N 0.000 description 1
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a probe for water quality detection, which comprises a probe body provided with an installation cavity, a glassy carbon electrode, a counter electrode and a reference electrode, wherein the glassy carbon electrode, the counter electrode and the reference electrode are arranged in the installation cavity; the glassy carbon electrode comprises an installation cover, a glassy carbon sheet and a conductive piece, the installation cover is detachably connected with the working end, the installation cover is provided with a through hole, the glassy carbon sheet can be clamped between the inner end surface of the through hole and the working end, and the conductive piece is positioned in the installation cavity and can penetrate out of the working end to be connected with the glassy carbon sheet; the probe body and the mounting cover are made of insulating materials. Can be convenient for change working electrode when detecting quality of water, avoid the deposit to cause the influence at the oxide on working electrode surface to detecting, but reduce cost and raise the efficiency simultaneously.
Description
Technical Field
The utility model relates to a water quality testing technical field, concretely relates to probe for water quality testing.
Background
In many industrial fields, such as gas, coking, oil refining, metallurgy, machine manufacturing, glass, petrochemical industry, wood fiber, chemistry, organic synthesis industry, plastics, medicine, pesticide, paint and other industries, wastewater discharged directly without treatment and irrigating farmlands can pollute atmosphere, water, soil and food, and therefore, it is important to detect water quality before discharge.
Taking phenolic compounds as an example, the electrochemical detection method has the characteristics of rapidness, simplicity, convenience and easy realization of on-line detection and automation. The electrochemical method is used for measuring through direct oxidation of phenol on the anode, the phenol oxide is easy to polymerize and deposit on the surface of the working electrode of the probe, so that further test is influenced, the components in the organic wastewater are complex, other interference is possibly generated, if the probe is integrally replaced, the cost is high, the operation of replacing the working electrode is complex, and the efficiency is low.
Therefore, how to replace the working electrode while detecting the water quality can avoid the influence of the oxide deposited on the surface of the working electrode on the detection, and can reduce the cost and improve the efficiency, which is a technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a probe for water quality testing can be when detecting quality of water, is convenient for change working electrode, avoids the deposit to cause the influence to the detection at the oxide on working electrode surface, but reduce cost and raise the efficiency simultaneously.
In order to solve the technical problem, the utility model provides a probe for water quality detection, which comprises a probe body provided with an installation cavity, a glassy carbon electrode, a counter electrode and a reference electrode, wherein the glassy carbon electrode, the counter electrode and the reference electrode are arranged in the installation cavity; the glassy carbon electrode comprises an installation cover, a glassy carbon sheet and a conductive piece, the installation cover is detachably connected with the working end, the installation cover is provided with a through hole, the glassy carbon sheet can be clamped between the inner end face of the through hole and the working end, and the conductive piece is positioned in the installation cavity and can penetrate out of the working end to be connected with the glassy carbon sheet; the probe body and the mounting cover are made of insulating materials.
The probe body and the mounting cover are made of insulating materials, so that only each electrode can conduct electricity when the end of the probe is contacted with a water sample to be detected, and the accuracy of a water quality detection result is guaranteed. Specifically, no requirement is made on the insulating material, and if the insulating material is polyformaldehyde, the insulating material has the hardness, the strength and the rigidity similar to those of metal, and has good self-lubricating property, good fatigue resistance, low water absorption rate and good dimensional stability in a wide temperature and humidity range.
In the detection process, the glassy carbon electrode is used as a working electrode, and the surface of a glassy carbon sheet of the glassy carbon electrode is easily adsorbed and polluted by organic substances generated by electrolysis, so that the performance of the glassy carbon electrode is quickly attenuated, and the water quality detection result is influenced. In this embodiment, the installation cover is detachably connected with the working end of the probe body, so that the installation cover can be detached after the surface of the glassy carbon sheet is polluted, the polluted glassy carbon sheet is taken down, a new glassy carbon sheet is replaced, the installation cover is connected and fixed with the working end again, the change of the glassy carbon sheet is realized, the replacement operation is simple and rapid, and the accuracy of a water quality detection result is ensured.
Optionally, a sealing element is clamped between the inner end surface of the through hole and the glass carbon sheet along the circumferential direction of the through hole; and a sealing element is clamped between the side wall of the mounting cover and the working end along the circumferential direction of the side wall.
Optionally, the working end is provided with an installation cylinder, the installation cover and the installation cylinder can be connected through threads, and the glass carbon sheet can be clamped between the inner end face of the through hole and the end face of the installation cylinder.
Optionally, a conductive substrate is arranged at an end of the conductive member, the conductive substrate is arranged on an end surface of the mounting cylinder, and the end surface of the conductive substrate can be attached to the glassy carbon sheet.
Optionally, the distances between the ends of the glassy carbon electrode, the counter electrode and the reference electrode in the axial direction are not more than 1 mm.
Optionally, the axes of the glassy carbon electrode, the counter electrode and the reference electrode are not coplanar.
Optionally, the counter electrode and the reference electrode respectively penetrate through the working end and are fixed with the working end through a sealant.
Optionally, the counter electrode is a platinum electrode or a gold electrode, and the reference electrode is a silver chloride electrode; the working end is further provided with a protective cover, one end of the probe body, far away from the protective cover, is of an open structure, and the counter electrode and the reference electrode are both located in the protective cover.
Optionally, the side wall of the protective cover is a hollow structure.
Optionally, the side wall of the protective cover facing the glassy carbon electrode is further provided with a yielding structure.
Drawings
Fig. 1 is a schematic structural view of a water quality detection probe provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of the end face of the working end of the probe for water quality detection;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged view of C in FIG. 3;
fig. 5 is a sectional view B-B in fig. 2.
In the accompanying fig. 1-5, the reference numerals are illustrated as follows:
1-probe body, 11-installation cavity, 12-working end, 13-installation barrel, 131-installation groove, 14-first body, 15-second body, 151-perforation, 16-blocking piece;
2-glassy carbon electrode, 21-mounting cover, 211-through hole, 22-glassy carbon sheet, 23-conducting rod and 24-conducting substrate;
3-a seal;
4-pair of electrodes;
5-a reference electrode;
6-protective cover, 61-hollow hole, 62-abdicating structure.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides a probe for water quality testing, as shown in figure 1, figure 3 and figure 5, this probe for water quality phenols detection includes probe body 1 and glassy carbon electrode 2, counter electrode 4 and reference electrode 5, wherein, is equipped with installation cavity 11 in the probe body 1, and each electrode (including glassy carbon electrode 2, counter electrode 4 and reference electrode 5,) all is located installation cavity 11, and the tip stretches out probe body 1's work end 12 and is located outside installation cavity 11.
Specifically, the glassy carbon electrode 2 comprises a mounting cover 21, a glassy carbon sheet 22 and a conductive piece, wherein the mounting cover 21 can be detachably connected with the working end 12 of the probe body 1, the mounting cover 21 is provided with a through hole 211, when the mounting cover 21 is fixedly connected with the working end 12 of the probe body 1, the glassy carbon sheet 22 can be clamped between the inner end surface of the through hole 211 and the working end 12, and the conductive piece is positioned in the mounting cavity 11 of the probe body 1 and can penetrate through the working end 12 of the probe body 1 to be connected with the glassy carbon sheet 22, so that the electric conduction is realized.
In detail, when the water quality is detected, the end part of the probe is firstly put into the water to be detected until each electrode is contacted with the water to be detected, then the current feedback is carried out through the conductive piece, and the water quality condition is judged according to the current condition. However, how to judge the water quality condition by the current feedback condition of each electrode is well known to those skilled in the art, and is not described herein for saving space.
The probe body 1 and the mounting cover 21 are both made of insulating materials, so that only each electrode can conduct electricity when the end part of the probe is contacted with a water sample to be detected, and the accuracy of a water quality detection result is ensured. Specifically, no requirement is made on the insulating material, and in this embodiment, the insulating material is selected to be polyoxymethylene, which has hardness, strength and rigidity similar to those of metals, and has good self-lubricity, good fatigue resistance, low water absorption rate and good dimensional stability in a wide temperature and humidity range.
In the detection process, the glassy carbon electrode 2 is used as a working electrode, and the surface of the glassy carbon sheet 22 is easily adsorbed and polluted by organic substances generated by electrolysis, so that the performance of the glassy carbon electrode 2 is quickly attenuated, and the water quality detection result is influenced. In this embodiment, the installation cover 21 is detachably connected with the working end 12 of the probe body 1, so that after the surface of the glassy carbon sheet 22 is polluted, the installation cover 21 can be detached, the polluted glassy carbon sheet 22 can be taken down, a new glassy carbon sheet 22 is replaced, the installation cover 21 is fixedly connected with the working end 12 again, the replacement of the glassy carbon sheet 22 is realized, the replacement operation is simple and rapid, and the accuracy of the water quality detection result is ensured.
Further, a seal member 3 is interposed between the inner end surface of the through hole 211 and the glassy carbon sheet 22 in the circumferential direction thereof, and a seal member 3 is also interposed between the side wall of the mounting cover 21 and the working end 12 of the probe body 1 in the circumferential direction thereof. To avoid water entering the end cap during testing.
In the above embodiment, the working end 12 is provided with the mounting cylinder 13, the outer wall of the end of the mounting cylinder 13 is provided with an external thread, and the inner side wall of the mounting cover 21 is provided with an internal thread matched with the external thread. That is to say, the mounting cover 21 is detachably connected to the working end 12 of the probe body 1 through a threaded connection, and of course, in this embodiment, there is no limitation on the specific connection manner between the mounting cover 21 and the working end 12, for example, the working end 12 and the mounting cover 21 are respectively and correspondingly provided with a clamping structure, and the two are detachably connected through clamping. And when the connection is realized through the screw thread, the axial distance between the two can be adjusted, so that the glassy carbon sheet 22 can be clamped between the inner end surface of the through hole 211 and the working end 12 of the probe body 1, and the stability and the sealing property are ensured.
Specifically, the sealing member 3 between the side wall of the mounting cover 21 and the probe body 1 may be disposed between the mounting cover 21 and the mounting cylinder 13 or between the mounting cover 21 and the end surface of the working end 12, specifically, when the sealing member 3 is disposed between the mounting cover 21 and the mounting cylinder 13, as shown in fig. 4, an installation groove 131 is circumferentially disposed on the outer wall of the mounting cylinder 13, the sealing member 3 is located in the installation groove 131, and after the mounting cover 21 is engaged with the mounting cylinder 13 through a thread, the end portion of the side wall of the mounting cover 21 can be located in the installation groove 131 and abutted against the sealing member 3, or the sealing member 3 may be disposed between the inner wall of the mounting cover 21 and the outer wall of the mounting cylinder 13; when the seal 3 is provided between the mounting cover 21 and the end face of the probe body 1, the seal 3 may be clamped between the end portion of the side wall of the mounting cover 21 and the end face of the probe body 1. The sealing member 3 may be provided according to practical situations, and is not particularly limited herein.
Further, the end of the conductive piece of glassy carbon electrode 2 also includes conductive substrate 24, and this conductive substrate 24 locates the terminal surface of installation section of thick bamboo 13 to conductive substrate 24's terminal surface can be connected with the laminating of glassy carbon piece 22, and this conductive substrate 24 realizes electrically conductively through the face laminating contact with between glassy carbon piece 22, thereby guarantees electric conductive property, avoids appearing the condition of contact failure between the glassy carbon piece 22 and the conductive piece after changing.
Specifically, the end surface of the conductive substrate 24 on the side away from the glassy carbon plate 22 may be directly connected to a wire to implement transmission of a current signal, or, as shown in fig. 4, the conductive member further includes a conductive rod 23, and two ends of the conductive rod 23 are respectively connected to the conductive substrate 24 and the wire to implement a conductive function between the conductive substrate 24 and the wire. Specifically, the conductive rod 23 and the conductive substrate 24 may be made of copper materials, and the two are of an integrated structure, or may be of a split structure and fixed by threads and/or welding and the like, so as to realize the electrical conduction between the two; the connection between the conductive rod 23 and the conductive wire may be by copper terminal connection. And the ends of the counter electrode 4 and the reference electrode 5 far away from the working end 12 and the corresponding leads can also be connected through copper binding posts.
In order to simplify the processing technology, the conductive rod 23 and the conductive substrate 24 are connected through threads and are fixed through soldering tin in a welding mode, after the conductive rod and the conductive substrate are fixed, abrasive paper grinding and polishing are carried out on the end face, facing the glassy carbon piece 22, of one side of the conductive substrate 24 to guarantee the flatness of the end face of the conductive substrate, and therefore the end face of the conductive substrate 24 can be well attached to the glassy carbon piece 22 and good in conductivity.
In the above-described embodiment, the distances between the ends of the glassy carbon electrode 2, the counter electrode 4, and the reference electrode 5 in the axial direction are not more than 1mm, that is, the ends of the respective electrodes are disposed almost aligned. When examining quality of water, put into the container with the water sample that awaits measuring to add corresponding reagent in order forming the liquid that awaits measuring in the container, then stretch into the water sample that awaits measuring with the work end 12 of probe body 1, because the tip of each electrode aligns almost, consequently, each electrode almost simultaneously with the liquid level contact and dip in under the liquid level, so set up, can avoid individual electrode not dip in the water sample that awaits measuring and need higher liquid level, thereby can save the reagent quantity, with reduce cost.
In the above embodiment, the axes of the glassy carbon electrode 2, the counter electrode 4 and the reference electrode 5 are not coplanar, as shown in fig. 2, the axes of the glassy carbon electrode 2, the counter electrode 4 and the reference electrode 5 form three vertexes of a triangle at the working end 12, and thus, compared with the scheme of arranging the three coplanar, the diameter of the probe body 1 can be reduced, the overall volume of the probe is further reduced, and the detection operation is facilitated.
In the above embodiment, the counter electrode 4 and the reference electrode 5 respectively penetrate through the working end 12 and are fixed with the working end 12 through the sealant, and the sealant can play a role in sealing and fixing, so that the sealing performance is ensured, and the stable installation of the counter electrode 4 and the reference electrode 5 can also be ensured. Specifically, the sealant can adopt 704 silica gel, has good adhesion, high strength, better electrical insulation performance, sealing performance and aging resistance, and can be used for a long time within the range of-50 ℃ to +250 ℃.
In the above embodiment, the counter electrode 4 is a platinum electrode or a gold electrode, the reference electrode 5 is a silver chloride electrode, meanwhile, the working end 12 of the probe body 1 is further provided with the protective cover 6, one end of the protective cover 6, which is far away from the probe body 1, is of an open structure, the counter electrode 4 and the reference electrode 5 are both located in the protective cover 6, and the protective cover 6 can protect the counter electrode 4 and the reference electrode 5 which are located inside the protective cover, so that the counter electrode 4 and the reference electrode 5 are prevented from being bent or damaged.
Further, the lateral wall of safety cover 6 is hollow out construction to when making liquid get into safety cover 6 in, hollow out construction's lateral wall can realize exhausting, and hollow out construction also can be convenient for treat the business turn over of survey liquid. Specifically, the specific structure of the protective cover 6 may be as shown in fig. 1 and 4, and the side wall may be provided with the hollow holes 61 or may be a net structure, which is not limited herein.
One side wall of the protective cover 6 facing the glassy carbon electrode 2 is also provided with a yielding structure 62, so that the diameter of the probe body 1 can be reduced under the condition that the mounting cover 21 of the glassy carbon electrode 2 is not affected, and the volume miniaturization of the probe is ensured.
In the above embodiment, the outer wall of the probe body 1 is provided with the stopper 16 along the circumferential direction, when a water sample to be detected in the container is detected, the stopper 16 can abut against the opening end of the container, so that the relative position between the probe and the container is stable, and at this time, the end of each electrode is immersed in the liquid to be detected, thereby facilitating the detection operation.
In the above embodiment, the probe body 1 includes the first body 14 and the second body 15, both the first body 14 and the second body 15 are of a cylinder structure with one end closed and the other end open, the ends of the first body 14 and the second body 15 with the openings are oppositely connected to enclose the installation cavity 11, and when the probe body 1 is configured to include the first body 14 and the second body 15, the assembly and disassembly operations between each electrode and the probe body 1 can be facilitated; meanwhile, wires connected with the glassy carbon electrode 2, the counter electrode 4 and the reference electrode 5 are arranged in the mounting cavity 11, the first body 14 is provided with the working end 12, one end, far away from the first body 14, of the second body 15 is provided with a through hole 151 for the wires to pass through, and the end, through which the wires pass through the second body 15, of the wire is connected with external connection equipment, so that signal transmission is realized.
Specifically, in the present embodiment, the specific structure of the stopper 16 is not limited, as shown in fig. 3 and 5, the stopper 16 may be an annular structure interposed between the first body 14 and the second body 15, or the stopper 16 may be disposed on the outer wall of the first body 14 or the second body 15, and is not limited herein.
The probe for water quality detection provided in this embodiment can drop a solution corresponding to a substance to be detected onto the surface of the glassy carbon sheet 22 according to the substance to be detected, so as to perform water body detection. In this embodiment, the structure of the probe is mainly protected, and specific solutions, reagents, and the like can be selected according to the substance to be detected, and are not limited specifically here.
The water quality detector provided with the probe for detecting the water quality further comprises a shell, a detection container and an industrial control part, wherein the detection container and the industrial control part are arranged in the shell, the industrial control part can receive the result detected by the probe, and analyze and calculate the result to obtain the water quality condition, and the industrial control part can display the detection result and the analysis and calculation result through a display unit and the like so that an operator can know the water quality condition conveniently. Meanwhile, the water quality detector can also be provided with a storage unit, can store a water quality detection result, an analysis calculation result and a detection date, and can also correspondingly input a sample number and the like so as to facilitate tracing.
When the water quality is required to be detected on site, the water quality detector can be directly carried to the site to detect the water quality. Specifically, the on-site water sample to be detected is sampled and placed in the detection container, and then the water sample to be detected in the detection container is detected through the probe, so that the detection result can be analyzed through the industrial control part, the detection operation is convenient, and the detection efficiency can be effectively improved. This water quality testing appearance can on-spot carry out the real-time detection to quality of water, need not to take back it to the laboratory after sampling to the water and detect, and detection efficiency is high and can avoid the water sample to change carrying the in-process to guarantee the accuracy of water quality testing result.
Specifically, how to obtain the detection result of the probe and analyze the detection result according to the probe after the industrial control part is connected with the probe through the cable is similar to the technologies of carrying the water sample back to the laboratory in the prior art and detecting and analyzing the water sample through the probe and the industrial control system in the laboratory, and the control, calculation, storage and the like of the industrial control computer are well known to those skilled in the art, and are not repeated herein for saving space.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The probe for detecting the water quality is characterized by comprising a probe body (1) provided with a mounting cavity (11), a glassy carbon electrode (2), a counter electrode (4) and a reference electrode (5) which are arranged in the mounting cavity (11), wherein the end parts of the electrodes respectively penetrate out of a working end (12) of the probe body (1);
the glassy carbon electrode (2) comprises an installation cover (21), a glassy carbon sheet (22) and a conductive piece, the installation cover (21) is detachably connected with the working end (12), the installation cover (21) is provided with a through hole (211), the glassy carbon sheet (22) can be clamped between the inner end surface of the through hole (211) and the working end (12), and the conductive piece is located in the installation cavity (11) and can penetrate out of the working end (12) to be connected with the glassy carbon sheet (22);
the probe body (1) and the mounting cover (21) are both made of insulating materials.
2. The probe for water quality inspection according to claim 1, wherein a sealing member (3) is interposed between the inner end surface of the through hole (211) and the glass carbon sheet (22) in the circumferential direction thereof;
and a sealing element (3) is clamped between the side wall of the mounting cover (21) and the working end (12) along the circumferential direction of the side wall.
3. The probe for detecting the water quality according to claim 2, wherein the working end is provided with an installation cylinder (13), the installation cover and the installation cylinder can be connected through threads, and the glass carbon sheet can be clamped between the inner end surface of the through hole and the end surface of the installation cylinder.
4. The probe for detecting the water quality according to claim 3, wherein a conductive substrate (24) is arranged at the end part of the conductive piece, the conductive substrate (24) is arranged on the end surface of the mounting cylinder (13), and the end surface of the conductive substrate (24) can be attached and connected with the glassy carbon piece (22).
5. A water quality detecting probe according to any one of claims 1 to 4, wherein the distances between the ends of the glassy carbon electrode (2), the counter electrode (4) and the reference electrode (5) in the axial direction are not more than 1 mm.
6. The probe for detecting water quality according to any one of claims 1 to 4, wherein axes of the glassy carbon electrode (2), the counter electrode (4) and the reference electrode (5) are not coplanar.
7. The probe for detecting water quality according to any one of claims 1 to 4, wherein the counter electrode (4) and the reference electrode (5) are respectively passed through the working end (12) and fixed to the working end (12) by a sealant.
8. The probe for detecting water quality according to any one of claims 1 to 4, wherein the counter electrode (4) is a platinum electrode or a gold electrode, and the reference electrode (5) is a silver chloride electrode;
work end (12) still are equipped with safety cover (6), safety cover (6) are kept away from the one end of probe body (1) is open structure, just counter electrode (4) with reference electrode (5) all are located in safety cover (6).
9. The probe for detecting water quality according to claim 8, wherein the side wall of the protective cover (6) is a hollow structure.
10. The probe for detecting water quality according to claim 8, wherein a receding structure is further provided on a side wall of the protective cover (6) facing the glassy carbon electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120471703.8U CN215005321U (en) | 2021-03-04 | 2021-03-04 | Probe for water quality detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120471703.8U CN215005321U (en) | 2021-03-04 | 2021-03-04 | Probe for water quality detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215005321U true CN215005321U (en) | 2021-12-03 |
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| CN114324535A (en) * | 2022-01-05 | 2022-04-12 | 东北大学 | Detachable metal melt hydrogen measuring sensor device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114324535A (en) * | 2022-01-05 | 2022-04-12 | 东北大学 | Detachable metal melt hydrogen measuring sensor device |
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