CN219224668U

CN219224668U - Electrolytic cell

Info

Publication number: CN219224668U
Application number: CN202223491552.6U
Authority: CN
Inventors: 黄伟; 黄华; 黄军堂; 李仕琪
Original assignee: Prius Tianjin Technology Co ltd
Current assignee: Prius Tianjin Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-20
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the technical field of electrolytic cells, and provides an electrolytic cell, which comprises: the electrolytic cell comprises an electrolytic cell body, a reference electrode seat and a connecting channel, wherein the inner cavity of the electrolytic cell body is communicated with the inner cavity of the reference electrode seat through the connecting channel, an extra-fine capillary tube is arranged in the connecting channel, and two ends of the extra-fine capillary tube are respectively communicated with the inner cavity of the electrolytic cell body and the inner cavity of the electrode seat.

Description

Electrolytic cell

Technical Field

The utility model relates to the technical field of electrolytic cells, in particular to an electrolytic cell.

Background

Electrochemistry is a chemical branch for researching interaction relation between electric action and chemical action, and different current conditions of a research object are observed by applying different potentials; is an analysis method established based on the relation between different electrode materials and electrolysis parameters and electrochemical properties of the electrolyte in the electrolytic cell. Electrochemical analysis methods can be classified into cyclic voltammetry, linear voltammetry, alternating current impedance method, potentiometry, electrolytic method, and the like, according to different applied signals. However, whichever type of electrochemical analysis method is used, it must be carried out in an electrolytic cell, and thus the electrolytic cell has an irreplaceable role in various electroanalytical studies.

A common electrolytic cell is a two-electrode system having a cathode and an anode connected by a salt bridge to form a complete system. The system has simple result and convenient test, but because of the passing of current in the system, voltage drop can be generated in the system solution, so that the applied external voltage is larger than the system required voltage, and the measurement result has larger error; in addition, the current existing in the system can polarize the counter electrode, so that the potential of the working electrode is difficult to accurately measure, and in order to solve the problem of current existing in a two-electrode system, a reference electrode with stable potential is added in the system. Because current does not flow through the reference electrode, the reference electrode does not produce polarization. The potential signal of the working electrode can be obtained through the reference electrode, and the current signal of the working electrode can be obtained through the counter electrode, so that the accuracy and the scientificity of the test are greatly improved.

The application number is as follows: CN201721484283.7 discloses a micro coulomb measuring instrument electrolytic cell, which comprises a ceramic cell body, the top of the ceramic cell body is provided with a cell body top cover, an anode binding post and a cathode binding post are arranged above the cell body top cover, the anode binding post is arranged on one side of the cathode binding post, a feed inlet is arranged on the other side of the anode binding post, and an electrolytic anode is arranged below the anode binding post.

However, in the three-electrode system, the concentration of the solution in the electrolytic cell is changed when the working electrode works, and the concentration of the solution around the reference electrode is changed due to the fact that the reference electrode is close to the working electrode, so that the reference electrode is unstable, and the detection signal of the reference electrode is greatly fluctuated.

Disclosure of Invention

In order to solve the problem that in a three-electrode system, the concentration of a solution in an electrolytic cell changes when a working electrode works, and the concentration of the solution around a reference electrode changes due to the fact that the reference electrode is similar to the working electrode in position, so that the reference electrode is unstable and a detection signal of the reference electrode fluctuates greatly, the utility model provides an electrolytic cell, and solves the problem.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an electrolytic cell comprising: the electrolytic cell comprises an electrolytic cell body, a reference electrode seat and a connecting channel, wherein the electrolytic cell body is internally provided with a special capillary tube, and the two ends of the special capillary tube are respectively communicated with the electrolytic cell body and the electrode seat body.

Preferably, the ultrafine capillaries are provided with at least one set.

Preferably, the pore size of the ultra-fine capillary is less than 0.15mm.

Preferably, a connecting rod is further arranged between the electrolytic cell and the reference electrode seat, and the connecting rod is arranged in parallel with the connecting channel.

Preferably, the electrolytic cell comprises: the device comprises a base, a cavity and a cover body, wherein the cavity is arranged on the base, the cover body is used for sealing the cavity, a plurality of mounting holes for placing electrodes are formed in the cover body, and the cavity is communicated with a reference electrode seat through a connecting channel.

The utility model has the advantages that: according to the utility model, the connecting channel with the ultra-thin capillary is arranged between the electrolytic cell and the reference electrode seat, so that the conductivity of the solution can be ensured, the relative flow of the solution can be reduced, the change of the concentration of the liquid is slowed down, the stability of the reference electrode is further improved, and the fluctuation of detection signals is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a structural isometric view of the present utility model;

FIG. 2 is a cross-sectional view of a connecting channel of the present utility model;

fig. 3 is a front view of the present utility model.

Reference numerals illustrate:

1. an electrolytic cell; 2. a reference electrode base; 3. a connection channel; 31. superfine capillary tube; 4. a connecting rod; 11. a base; 12. a cavity; 13. and a cover body.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Embodiment one, described with reference to fig. 1 and 2:

an electrolytic cell comprising: the electrolytic cell 1, the reference electrode seat 2 and the connecting channel 3, the inner cavity of the electrolytic cell 1 is communicated with the inner cavity of the reference electrode seat 2 through the connecting channel 3, the extra-fine capillary tube 31 is arranged in the connecting channel 3, two ends of the extra-fine capillary tube 31 are respectively communicated with the inner cavity of the electrolytic cell 1 and the inner cavity of the electrode seat 2, and the connecting channel 3 with the extra-fine capillary tube 31 is arranged between the electrolytic cell 1 and the reference electrode seat 2, so that the conductivity of a solution can be ensured, the relative flow of the solution can be reduced, the change of the concentration of the liquid can be slowed down, the stability of the reference electrode can be improved, and the fluctuation of detection signals can be reduced.

A second embodiment is described with reference to fig. 1 and 2 based on the first embodiment:

the ultra-thin capillaries 31 are arranged in a uniform array around the circumference in such a manner that the conductivity inside the ultra-thin capillaries can be ensured even when analyzing a sample having a high concentration.

Embodiment III, based on embodiment II, is described with reference to FIG. 1 and FIG. 2:

the pore diameter of the ultra-thin capillary tube 31 is smaller than 0.15mm, so that the electrolyte can not flow under the condition of no pressure.

Embodiment four, on the basis of embodiment three, is described with reference to fig. 1 and 2:

the electrolytic cell is characterized in that a connecting rod 4 is further arranged between the electrolytic cell 1 and the reference electrode seat 2, the connecting rod 4 is arranged in parallel with the connecting channel 3, the connecting rod 4 is used for guaranteeing the connection stability of the electrolytic cell 1 and the reference electrode seat 2, the connecting channel 3 is prevented from being disconnected by external force, and the service life of equipment is prolonged.

Embodiment five, on the basis of embodiment four, is described with reference to fig. 1 and 2:

the electrolytic cell 1 includes: base 11, cavity 12 and lid 13, cavity 12 sets up on base 11, and lid 13 is used for sealed cavity 12, sets up a plurality of mounting holes that are used for placing the electrode on the lid 13, and cavity 12 communicates with reference electrode seat 2 through connecting channel 3, so sets up, and base 11 can be convenient for the electrolytic cell place or be connected with other devices, is provided with the electrolyte in the cavity 12, cartridge has working electrode on the lid 13.

The working principle of the utility model is as follows: when in use, the solution in the cavity 12 flows into the containing cavity of the reference electrode seat 2 through the superfine capillary tube 31, and at the moment, the solution sample analysis is carried out.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model, but any minor modifications, equivalents, and improvements made to the above embodiments according to the technical principles of the present utility model should be included in the scope of the technical solutions of the present utility model.

Claims

1. An electrolytic cell, comprising: the electrolytic cell comprises an electrolytic cell (1), a reference electrode seat (2) and a connecting channel (3), wherein the inner cavity of the electrolytic cell (1) is communicated with the inner cavity of the reference electrode seat (2) through the connecting channel (3), an extra-fine capillary tube (31) is arranged in the connecting channel (3), and two ends of the extra-fine capillary tube (31) are respectively communicated with the inner cavity of the electrolytic cell (1) and the inner cavity of the electrode seat (2).

2. An electrolytic cell according to claim 1, characterized in that the extra fine capillaries (31) are provided with at least one group.

3. An electrolytic cell according to claim 1, characterized in that the pore size of the ultra-fine capillaries (31) is less than 0.15mm.

4. An electrolytic cell according to claim 1, characterized in that a connecting rod (4) is further arranged between the electrolytic cell (1) and the reference electrode holder (2), the connecting rod (4) being arranged in parallel with the connecting channel (3).

5. An electrolytic cell according to claim 1, characterized in that the electrolytic cell (1) comprises: base (11), cavity (12) and lid (13), cavity (12) set up on base (11), and lid (13) are used for sealed cavity (12), set up a plurality of mounting holes that are used for placing the electrode on lid (13), and cavity (12) are through connecting channel (3) and reference electrode seat (2) intercommunication.