CN203247315U - Bipolar electrolysis bath - Google Patents

Abstract

The utility model discloses a bipolar electrolysis bath, which comprises at least one electrolysis bath, wherein the electrodes of all electrolysis baths are bipolar electrodes. According to the bipolar electrolysis bath, the individual electrolysis bath of the bipolar electrode structure can be connected in series to be a plurality of electrolysis chambers, that is, one bipolar electrolysis bath is equivalent to the integration of the plurality of homopolar electrolysis baths; as the working current of the series connection is smaller, the current distribution on the electrode surface is uniform, the structure of the electrolysis baths is compact, and the maintenance is convenient.

Description

A bipolar electrolyzer

technical field

The utility model relates to a bipolar electrolyzer.

Background technique

At present, electrolytic production of sodium hypochlorite has been widely used. Due to the use of unipolar electrodes in early electrolytic cells, the development of large-scale chlorine production equipment has been limited. As shown in Figure 1, this structure has great disadvantages, such as: large operating current , The current distribution on the electrode surface is uneven; the extremely complicated copper bar and bolt connection cause large contact resistance and large power loss; the inevitable leakage problem is caused by large sealing surface and many sealing surfaces.

Utility model content

The technical problem to be solved by the utility model is to overcome the disadvantages of the existing single-polarity electrolytic cell, and therefore, a bipolar electrolytic cell is provided.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is as follows: a bipolar electrolytic cell includes one or more electrolytic cells, wherein the electrode structure of each electrolytic cell is a bipolar electrode.

Further, the electrode structures of the one or more electrolytic cells are connected in series.

Further, the one or more electrolytic cells are connected to each other by means of flat flange seals and O-ring seals.

The beneficial effects of the utility model are as follows: a single electrolytic cell with a bipolar electrode structure can be connected in series to form more electrolytic chambers, that is, a bipolar electrolytic cell is equivalent to the integration of multiple unipolar electrolytic cells. Small size, uniform current distribution on the electrode surface, compact electrolytic cell structure, and easy maintenance.

Other features and advantages of the present invention will be set forth in the following description, and, in part, will be apparent from the description, or can be learned by practicing the present invention. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The utility model is described in detail below in conjunction with the accompanying drawings, so that the above-mentioned advantages of the utility model are more clearly defined.

Fig. 1 is a structural schematic diagram of the prior art.

Fig. 2 is a structural schematic diagram of a bipolar electrolyzer of the present invention.

Figure 3 is a partial process schematic diagram of a bipolar electrolyzer of the present invention.

Detailed ways

The utility model is described in detail below in conjunction with specific embodiments.

As shown in Figure 2 and Figure 3, the bipolar electrolytic cell of the present invention includes one or more electrolytic cells, wherein the electrode structure of each electrolytic cell is a bipolar electrode.

The electrode structures of the one or more electrolytic cells are connected in series with each other.

The one or more electrolytic cells are connected to each other by means of flat flange seals and O-ring seals.

Among them, the electrode structure of the electrolytic cell is a bipolar electrode (that is, a compound electrode). Compared with the unipolar electrode structure, the bipolar electrode has the following advantages: 1) A single electrolytic cell with a bipolar electrode structure can be connected in series to form more The electrolytic chamber, that is, a bipolar electrolytic cell is equivalent to the integration of multiple unipolar electrolytic cells. Due to the small working current of the series connection, the current distribution on the electrode surface is uniform, the electrolytic cell is compact and easy to maintain; 2) bipolar The electrical connection method of the electrode structure adopts the conduction connection between the electrode and the electrolyte (salt water/sea water), which ensures the uniform distribution of the current, the small ohmic voltage drop, and the high current efficiency, avoiding the complicated copper bars and unipolar electrodes. The contact resistance caused by the bolt connection is large, and the power loss is large; 3) The number of connections between the bipolar electrolytic cells is small, and the sealing surface is small. leak. It overcomes the inevitable leakage problem caused by the large sealing surface of the unipolar electrode and many sealing surfaces.

The above description is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it can still understand the aforementioned The technical solutions described in each embodiment are modified, or some of the technical features are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model. the

Claims (3)

1. a lost currents is characterized in that, comprises one or more electrolyzer, and wherein, the electrode structure of each electrolyzer is bipolar electrode.

2. lost currents according to claim 1 is characterized in that, the electrode structure of described one or more electrolyzer is connected each other.

3. lost currents according to claim 1 and 2 is characterized in that, described one or more electrolyzer adopts the plain-straight-face flange sealing to connect with O type circle sealing member each other.

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