CN212083311U

CN212083311U - Novel ampere electrolytic cell

Info

Publication number: CN212083311U
Application number: CN202020283257.3U
Authority: CN
Inventors: 刘洋
Original assignee: Anhui Wanyi Science and Technology Co Ltd
Current assignee: Anhui Wanyi Science and Technology Co Ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-12-04
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a novel ampere electrolytic cell, including film liquid route system and electrode system, the electrode system includes counter electrode, working electrode, film liquid route system locates between counter electrode and the working electrode, makes film liquid route system and the cell body structure to the clearance formation electrolytic cell between battery, the working electrode, the cross-section to the electrode is the U type, makes the cell body structure of electrolytic cell is U type shape, working electrode fixed mounting is in the U type intracavity to the electrode, makes the working electrode with the outside contact of film liquid route system. The utility model discloses can monitor the temperature of test fluid path well, prevent the weeping effectively, reduce the dead volume, to a great extent improves test signal's SNR, guarantees the stability and the repeatability of test result.

Description

Novel ampere electrolytic cell

Technical Field

The utility model relates to an analytical chemistry instrument field, in particular to a novel ampere electrolytic cell.

Background

In the prior art, an ampere detector in an ion chromatography instrument generally adopts a planar thin-layer electrolytic cell, and a counter electrode and a working electrode of the electrolytic cell adopt a horizontal butt joint mode, so that liquid leakage is easily caused, and the accuracy, the repeatability and the signal-to-noise ratio of a test result are poor. And vertical or inclined butt joint mode is adopted between the counter electrode and the working electrode of some electrolytic cells, and the mode needs to adopt a three-dimensional fine adjustment device for assisting butt joint, so that the operation difficulty is greatly increased. Meanwhile, the conventional ampere electrolytic cell generally does not adopt temperature sensing, and the temperature of a liquid path flowing through the electrolytic cell cannot be accurately detected, so that the instability and the poor repeatability of a test signal are caused.

Therefore, there is a need in the market for an amperometric electrolytic cell with a novel structure to overcome the disadvantages of the existing detection devices and further expand and develop the applications of amperometric electrochemical detection methods.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies in the prior art, the utility model aims to provide a novel ampere electrolytic cell, this electrolytic cell can monitor the temperature on test solution way well, prevents the weeping effectively, reduces the dead volume, and to a great extent improves test signal's SNR, guarantees test result's stability and repeatability.

The utility model provides a technical scheme that its technical problem adopted does: the utility model provides a novel ampere electrolytic cell, includes membrane liquid route system and electrode system, the electrode system includes counter electrode, working electrode, membrane liquid route system locates between counter electrode and the working electrode, makes membrane liquid route system and to the cell body structure of battery, the cell body structure of clearance formation electrolytic cell between the working electrode, the cross-section of counter electrode is the U type, makes the cell body structure of electrolytic cell is U type shape, working electrode fixed mounting is in the U type intracavity of counter electrode, makes the working electrode with the outside contact of membrane liquid route system.

Optionally, the membrane liquid path system includes a liquid path membrane and a concave portion disposed in the middle of the liquid path membrane, a cell body structure of the electrolytic cell is formed between the concave portion and the surface of the counter electrode, and a liquid inlet and a liquid outlet disposed on the counter electrode are respectively communicated with the cell body structure.

Optionally, the working electrode is matched with the counter electrode through an electrode disk, and the electrode disk is cylindrical.

Optionally, the working electrode is embedded in the electrode disk, and the working electrode is arranged along the axis of the electrode disk, so that the bottom of the working electrode penetrates out of the electrode disk and contacts with the outer side of the liquid path film.

Optionally, the electrode system further comprises a reference electrode mounted at a downstream location of the membrane fluid pathway system such that an end of the reference electrode is in contact with the fluid of the membrane fluid pathway system.

Optionally, a temperature sensor is installed in a cell body structure of the electrolytic cell, and the temperature sensor is embedded inside the counter electrode.

Adopt above-mentioned technical scheme, the utility model discloses a U type structure electrolytic bath enables film liquid circuit system and more hugs closely between working electrode and counter electrode, prevents the weeping, reduces the dead volume, can improve test signal's SNR well, and furthest reduces interfering signal guarantees the repeatability of test result.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic view of the electrode disk of the present invention;

FIG. 3 is a schematic structural diagram of the thin film liquid path system of the present invention;

fig. 4 is a schematic structural view of the counter electrode of the present invention.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in figure 1, the utility model discloses a novel ampere electrolytic cell, this ampere electrolytic cell can be used to ion chromatogram and liquid chromatogram's detection, can prevent the weeping effectively, reduces the dead volume, and to a great extent improves test signal's SNR, guarantees the stability and the repeatability of test result. The novel ampere electrolytic cell comprises a film liquid path system 1 and an electrode system, wherein the electrode system comprises a counter electrode 2 and a working electrode 3, the film liquid path system 1 is arranged between the counter electrode 2 and the working electrode 3, and a gap between the film liquid path system 1 and the counter cell 2 and a gap between the working electrode 3 form a cell body structure of the electrolytic cell.

In the utility model discloses in, as shown in fig. 1 and 4, the cross-section of counter electrode 2 is the U type for the cell body structure of electrolytic bath also is U type shape, and working electrode 3 is then fixed mounting in counter electrode 2's U type intracavity, makes working electrode 3 and film liquid way system 1's outside contact.

The utility model discloses in, when fixed working electrode 3, can inlay working electrode 3 in an electrode dish 4, fix working electrode 3 in the U type intracavity to electrode 2 through electrode dish 4. Specifically, as shown in fig. 2, the electrode disk 4 is a cylindrical electrode disk, and the bottom of the electrode disk 4 is hemispherical, before fixing the working electrode 3, a first small hole is formed in the electrode disk 4 along the axis, then the working electrode 3 is inserted into the first small hole, and finally the electrode disk 4 with the working electrode 3 is inserted into the U-shaped cavity of the counter electrode 2, and the electrode disk 4 is fixed. The working electrode 3 is fixed by the method, the specific surface area of the working electrode is large, the detection sensitivity is high, and the cylindrical electrode disk 4 is adopted, so that the manufacturing material of the electrode disk 4 can be saved, and the cost is saved.

The utility model discloses in, set up the hole on electrode disc 4 to the both ends terminal surface of wearing electrode disc 4, in addition, the aperture of this first aperture should still be unanimous with working electrode 3's diameter to when working electrode 3 penetrated into this first aperture, can guarantee working electrode 3's fastening.

The utility model discloses an in the embodiment, when fixing electrode disc 4 in the U die cavity of counter electrode 2, can be close to the both sides at the top at electrode disc 4 and fix a pair of symmetric distribution's nut respectively to set up the perforation that is used for connecting this nut in counter electrode 2's relevant position, when the fastening, fix electrode disc 4 and counter electrode 2 together through the screw. Of course, this is only one way of fixing the electrode disk 4, and other ways of fixing the electrode disk 4 may be adopted as long as the electrode disk 4 is firmly fixed.

Note that, after the electrode disk 4 is fixed, the working electrode 3 is in close contact with the outside of the liquid passage film 101 of the film liquid passage system 1. For example, in one embodiment of the present invention, when the working electrode 3 is embedded in the electrode disk 4, the end of the working electrode 3 contacting the film liquid path system 1 penetrates out from the bottom of the electrode disk 4 and extends to the side of the electrode disk 4, and the part of the working electrode 3 penetrating out of the electrode disk 4 is tightly attached to the hemisphere surface of the bottom of the electrode disk 4.

In the utility model, as shown in fig. 3, the film liquid path system 1 includes a liquid path film 101 and a concave portion 102 disposed at the middle of the liquid path film, a cell body structure of an electrolytic cell is formed between the concave portion 102 and the surface of the counter electrode 2, and a liquid inlet 201 and a liquid outlet 202 disposed on the counter electrode 2 are respectively communicated with the cell body structure. During detection, a liquid to be detected is injected through the liquid inlet 201, enters the tank body, reacts, and then flows out through the liquid outlet 202.

In the present invention, as shown in fig. 3, the two ends of the liquid path film 101 are further respectively provided with a positioning hole 103, and the positioning holes 103 can be matched with the above-mentioned screws for connecting and fastening the counter electrode 2 and the electrode disk 4, so that the liquid path film 101 is fastened between the counter electrode 2 and the electrode disk 4.

In the present invention, as shown in fig. 1, the electrode system further includes a reference electrode 5, and the reference electrode 5 is installed at a downstream position of the thin film liquid path system 1. Specifically, in an embodiment of the utility model, can open the second aperture on counter electrode 2's surface, make this second aperture and liquid outlet 202 communicate, then insert reference electrode 5 in this second aperture again, make the sense terminal of reference electrode 5 and the liquid contact in the liquid outlet 202, when fixed reference electrode 5, can fix through the mode of nut and thread bush, wherein, the nut welds in the hole edge position of second aperture, the thread bush is then fixed the outer tip of locating reference electrode 5, when reference electrode 5 inserts when targetting in place, rotatory reference electrode 5, make thread bush and nut cooperation fastening. The reference electrode 5, the working electrode 3 and the counter electrode 2 form a stable three-electrode system, and the reference electrode 5 can provide a stable reference potential when current is extremely small.

The utility model discloses in, still install temperature sensor 6 in the cell body structure of electrolytic bath, temperature sensor 6 inlays in the inside of counter electrode 2 to the liquid temperature of cell body is flowed through in the monitoring, guarantees the stability and the repeatability of test result.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Besides the technical features described in the specification, other technical features are known to those skilled in the art, and further description of the other technical features is omitted here in order to highlight the innovative features of the present invention.

Claims

1. The utility model provides a novel ampere electrolytic cell, its characterized in that, includes film liquid route system and electrode system, the electrode system includes counter electrode, working electrode, film liquid route system locates between counter electrode and the working electrode, makes film liquid route system and to the cell body structure of battery, the cell body structure of clearance formation electrolytic cell between the working electrode, the cross-section of counter electrode is the U type, makes the cell body structure of electrolytic cell is U type shape, working electrode fixed mounting is in the U type intracavity of counter electrode, makes the working electrode with the outside contact of film liquid route system.

2. A novel ampere electrolytic cell according to claim 1, wherein the membrane liquid path system comprises a liquid path membrane and a concave portion arranged in the middle of the liquid path membrane, a cell body structure of the electrolytic cell is formed between the concave portion and the surface of the counter electrode, and a liquid inlet and a liquid outlet arranged on the counter electrode are respectively communicated with the cell body structure.

3. A novel amperometric cell according to claim 1 or 2, wherein said working electrode is engaged with said counter electrode by means of an electrode disk, said electrode disk being cylindrical.

4. A novel amperometric cell according to claim 3, wherein said working electrode is embedded within said electrode disk and is arranged along the axis of the electrode disk such that the bottom of said working electrode protrudes through the electrode disk and is in contact with the outside of said liquid path membrane.

5. A novel amperometric cell according to claim 1, wherein the electrode system further comprises a reference electrode mounted at a downstream location of the membrane fluid pathway system such that an end of the reference electrode is in contact with the fluid of the membrane fluid pathway system.

6. A novel amperometric cell according to claim 1, wherein a temperature sensor is mounted inside the cell body structure of said cell, said temperature sensor being embedded inside said counter electrode.