CN201653969U - Hanging mercury electrode device for electrochemical heavy metal measurement - Google Patents
Hanging mercury electrode device for electrochemical heavy metal measurement Download PDFInfo
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- CN201653969U CN201653969U CN2010201701576U CN201020170157U CN201653969U CN 201653969 U CN201653969 U CN 201653969U CN 2010201701576 U CN2010201701576 U CN 2010201701576U CN 201020170157 U CN201020170157 U CN 201020170157U CN 201653969 U CN201653969 U CN 201653969U
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- mercury
- cavity
- kapillary
- electrode device
- hanging
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Abstract
The utility model discloses a hanging mercury electrode device for electrochemical heavy metal measurement, which comprises a cavity, a mercury storage cup, a capillary tube, a sealing needle, a lifting rod and a lifting driving part. Liquid inlet ends of the sealing needle and the capillary tube are installed inside the cavity; an output end of the lifting driving part is connected with the upper end of the sealing needle through the lifting rod and drives the sealing needle to move up and down; the lower end of the sealing needle matches with a liquid inlet of the capillary tube to control liquid inlet connection and disconnection; and the liquid inlet of the capillary tube is communicated with the mercury storage cup. The hanging mercury electrode device for electrochemical heavy metal measurement has the advantages of simple and compact structure, simple and convenient operation, high automation degree, excellent size uniformity of hanging mercury and convenient control of mercury drop sizes.
Description
Technical field
The utility model is mainly concerned with the measuring equipment field of electrochemical heavy metals, refers in particular to a kind of electrode assembly that is applicable to electrochemical heavy metals anode volt-ampere leaching.
Background technology
Anodic stripping voltammetry, the most mercury film electrodes that adopt of traditional operation process are as hanging mercury electrode, and mercury film electrode adopts evenly coats the mercury film on diaphragm, because the flowability of mercury, the mercury film can be uneven yet in the process of measuring, and diaphragm must adopt metallic conduction, especially easily by solution oxide.Can produce electric current in oxidizing process, thereby cause measuring inaccurate, and the amount of each amalgamate is inconsistent, causes reappearance bad; And owing to the oxidation reason of diaphragm, so diaphragm must polish smooth, removing oxide layer after after a while, is a very thing of trouble.
The utility model content
The technical problems to be solved in the utility model just is: at the technical matters that prior art exists, the utility model provides a kind of simple and compact for structure, easy and simple to handle, automaticity is high, outstanding mercury size identical property is fabulous, mercury drips the convenient control of size hanging mercury electrode device that is used for measuring electrochemical heavy metals.
For solving the problems of the technologies described above, the utility model by the following technical solutions.
A kind of hanging mercury electrode device that is used for measuring electrochemical heavy metals, it is characterized in that: comprise cavity, storage mercury cup, kapillary, needle seal, elevating lever and lifting driver part, described needle seal and liquid feeding end capillaceous are installed in the cavity, the output terminal of described lifting driver part links to each other with the upper end of needle seal and drives needle seal by elevating lever and does upper and lower motion, the lower end of described needle seal cooperates the break-make of controlling feed liquor with inlet capillaceous, and described inlet capillaceous is communicated with storage mercury cup.
As further improvement of the utility model:
Described storage mercury cup is located at a side of cavity, and the outlet end of described storage mercury cup is connected with inlet capillaceous by pipeline.
Described storage mercury cup is located in the cavity, and the outlet end of described storage mercury cup is connected with inlet capillaceous.
Described lifting driver part is a drive motor, and described elevating lever is a screw mandrel, and the top cover labyrinth inwall at described elevating lever and cavity top is a threaded engagement.
The top of described cavity is provided with first retaining ring, is arranged with second retaining ring on described cavity bottom and the extracapillary sidewall.
The top of described cavity is provided with first retaining ring, is arranged with second retaining ring on described cavity bottom and the extracapillary sidewall, and the lateral wall of described storage mercury cup is provided with the 3rd retaining ring.
Compared with prior art, advantage of the present utility model just is: the utility model is used for the hanging mercury electrode device of measuring electrochemical heavy metals, has simple and compact for structure, easy and simple to handle, automaticity advantages of higher, owing to adopt spherical mercury to drip as hanging mercury electrode, its area-volume ratio optimum, so stripping precision height because there is not the phenomenon of diaphragm oxidation, can not influence measuring accuracy again.The large and small consistance of outstanding mercury that the utility model forms is fabulous, and it is also very convenient that mercury drips size control; And it is big or small in full accord that each mercury that forms drips, so reappearance is very good.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Marginal data
1, cavity; 2, storage mercury cup; 3, kapillary; 4, needle seal; 5, elevating lever; 6, lifting driver part; 7, top cover labyrinth; 8, first retaining ring; 9, second retaining ring; 10, the 3rd retaining ring; 11, lower sealing cover; 12, retainer plate.
Embodiment
Below with reference to specific embodiment and Figure of description the utility model is described in further details.
As shown in Figure 1, the utility model is used for the hanging mercury electrode device of measuring electrochemical heavy metals, comprise cavity 1, storage mercury cup 2, kapillary 3, needle seal 4, elevating lever 5 and lifting driver part 6, the top and bottom of cavity 1 are respectively equipped with top cover labyrinth 7 and lower sealing cover 11, the liquid feeding end of needle seal 4 and kapillary 3 is installed in the cavity 1, and the outlet end of kapillary 3 is positioned at the outside of cavity 1.The output terminal of lifting driver part 6 links to each other and drives needle seal 4 with the upper end of needle seal 4 by elevating lever 5 and does upper and lower motion, links to each other by retainer plate 12 between elevating lever 5 and the needle seal 4.The lower end of needle seal 4 cooperates the break-make of controlling feed liquor with the inlet of kapillary 3, and the inlet of kapillary 3 is communicated with storage mercury cup 2.In the present embodiment, storage mercury cup 2 can be installed in a side of cavity 1, and the outlet end of storage mercury cup 2 is connected by the inlet of pipeline with kapillary 3.In other embodiments, also storage mercury cup 2 can be installed in the cavity 1, the outlet end of storage mercury cup 2 is connected with the inlet of kapillary 3.
In the present embodiment, lifting driver part 6 is a drive motor, and this drive motor can adopt stepper motor, and elevating lever 5 is a screw mandrel, and elevating lever 5 is a threaded engagement with top cover labyrinth 7 inwalls at cavity 1 top.Under the driving of drive motor, screw mandrel rotates, and drives one section accurate distance of needle seal 4 risings.
In the present embodiment, the top of cavity 1 is provided with first retaining ring 8, be arranged with second retaining ring 9 on cavity 1 bottom and kapillary 3 lateral walls, the lateral wall of storage mercury cup 2 is provided with the 3rd retaining ring 10, can guarantee solid and reliable being connected with cavity 1 of each assembly by three retaining rings.
Principle of work: when needs suspension mercury drips, drive screw mandrel by stepper motor and up accurately move some height, thereby drive needle seal 4 is raised corresponding distance.Mercury in the storage mercury cup 2 drips the inlet that enters kapillary 3, under action of gravity, from kapillary 3, ooze, when the amount that flows out just constitutes when setting mercury and dripping size, control step motor backward rotation, screw mandrel down moves, depress needle seal 4, block the inlet of kapillary 3, thereby formed the spherical mercury that a volume do not change drips in the bottom of kapillary 3, and utilize mercury to drip mercury and needle seals 4 a formations current paths continuous with kapillary 3 inside, play the effect of conduction.Each test all can be adopted above-mentioned same operation, and it is big or small in full accord that each mercury that forms drips, so the reappearance of whole device is very good.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. hanging mercury electrode device that is used for measuring electrochemical heavy metals, it is characterized in that: comprise cavity (1), storage mercury cup (2), kapillary (3), needle seal (4), elevating lever (5) and lifting driver part (6), the liquid feeding end of described needle seal (4) and kapillary (3) is installed in the cavity (1), the output terminal of described lifting driver part (6) links to each other and drives needle seal (4) with the upper end of needle seal (4) by elevating lever (5) and does, following motion, the lower end of described needle seal (4) cooperates the break-make of controlling feed liquor with the inlet of kapillary (3), and the inlet of described kapillary (3) is communicated with storage mercury cup (2).
2. the hanging mercury electrode device that is used for measuring electrochemical heavy metals according to claim 1, it is characterized in that: described storage mercury cup (2) is installed in a side of cavity (1), and the outlet end of described storage mercury cup (2) is connected by the inlet of pipeline with kapillary (3).
3. the hanging mercury electrode device that is used for measuring electrochemical heavy metals according to claim 1 is characterized in that: described storage mercury cup (2) is installed in the cavity (1), and the outlet end of described storage mercury cup (2) is connected with the inlet of kapillary (3).
4. according to claim 1 or the 2 or 3 described hanging mercury electrode devices that are used for measuring electrochemical heavy metals, it is characterized in that: described lifting driver part (6) is a drive motor, described elevating lever (5) is a screw mandrel, and described elevating lever (5) is a threaded engagement with top cover labyrinth (7) inwall at cavity (1) top.
5. the hanging mercury electrode device that is used for measuring electrochemical heavy metals according to claim 1 and 2, it is characterized in that: the top of described cavity (1) is provided with first retaining ring (8), is arranged with second retaining ring (9) on described cavity (1) bottom and kapillary (3) lateral wall.
6. the hanging mercury electrode device that is used for measuring electrochemical heavy metals according to claim 3, it is characterized in that: the top of described cavity (1) is provided with first retaining ring (8), be arranged with second retaining ring (9) on described cavity (1) bottom and kapillary (3) lateral wall, the lateral wall of described storage mercury cup (2) is provided with the 3rd retaining ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201701576U CN201653969U (en) | 2010-04-26 | 2010-04-26 | Hanging mercury electrode device for electrochemical heavy metal measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201701576U CN201653969U (en) | 2010-04-26 | 2010-04-26 | Hanging mercury electrode device for electrochemical heavy metal measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653969U true CN201653969U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201701576U Expired - Lifetime CN201653969U (en) | 2010-04-26 | 2010-04-26 | Hanging mercury electrode device for electrochemical heavy metal measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799445A (en) * | 2010-04-26 | 2010-08-11 | 长沙华时捷环保科技发展有限公司 | Hanging mercury electrode device used for measuring electrochemical heavy metals |
-
2010
- 2010-04-26 CN CN2010201701576U patent/CN201653969U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799445A (en) * | 2010-04-26 | 2010-08-11 | 长沙华时捷环保科技发展有限公司 | Hanging mercury electrode device used for measuring electrochemical heavy metals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101124 Effective date of abandoning: 20120808 |