JPS6018432Y2 - Electrode device for electrolysis equipment such as caustic soda - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electrode device in an electrolyzer for caustic soda or the like.

In this type of electrolytic device, the electrode device used is formed by welding an electrode to a substrate, regardless of whether a diaphragm method, an ion exchange resin method, or the like is used as the electrolytic means.

However, this welding method does not have good manufacturing efficiency, and it is difficult to repair the electrodes during periodic maintenance and inspection of the manufactured electrode devices because they are permanently joined by welding, and the electrodes are rarely replaced. The situation is almost impossible.

Furthermore, such welding has the drawback that over time, distortion occurs in the electrode wire, resulting in increased current resistance and increased power consumption.

Therefore, this invention aims to eliminate these drawbacks, and its purpose is to provide an electrode device with high manufacturing efficiency and suitable for mass production, and its purpose is to eliminate the need to remove the electrode during repair. It is an object of the present invention to provide an electrode device which can be easily repaired and whose electrodes can be replaced, and further aims to reduce the distortion of the electrode wires, prevent an increase in current resistance, and thereby reduce the increase in power consumption. An object of the present invention is to provide an electrode device that can prevent the above problems.

That is, in this invention, a base screw 2 having a male thread 1 formed on its head is attached to a substrate 3 using a screwing means, and a nut 4 is screwed onto the male screw head 1 of the base screw 2. Column body 5 on base screw 2
is tightened with the nut 4 at a constant distance from the substrate 3 and approximately parallel to the substrate 3, and the electrode wire 6 is directly fixed to the column body 5 except for the front surface of the nut 4, or This invention relates to an electrode device for an electrolyzer for caustic soda or the like, characterized in that a rib 7 is fixed to the pillar body 5 and an electrode wire 6 is fixed to the rib 7 except for the front surface of the nut 4.

Next, this invention will be explained based on an illustrated embodiment.

1 to 3 show an anode electrode device, FIG. 4 a cathode electrode device, and FIG. 5 a bipolar electrode device.

First, referring to FIGS. 1 to 3, a rubber lining 8 is attached to the front surface of a substrate 3 having a cell structure, and holes are formed through the substrate 3 and the rubber lining 8.

In this hole, a copper conductive shaft 9 with a threaded shape is placed facing in the front-rear direction, and the base screws 2, 2 are screwed into the conductive shaft 9 from the front and back of the conductive shaft 9 so as to sandwich the board 3, respectively. By doing so, it is screwed onto the board 3.

The base screw 2 on the front side of the board 3 is made of titanium, and the base screw on the rear side is made of iron.

A male screw 1 is formed on the head of each base screw 2゜2,
The base 2 screwed onto the rear surface of the substrate 3 is fixed to the substrate 3 by welding.

Further, a power supply terminal 10 made of copper is fixed to the base 2 by an iron nut 4 which is screwed onto the male head screw 1.

In addition, the base 2 screwed onto the front surface of the board 3 is lined with rubber lining 8.
A gasket 11 is interposed between the base 2 and the base 3, and a lock screw 12 made of titanium is screwed into the conductive shaft 9 from the center of the front surface of the head to firmly secure the base 2 to the substrate 3.

13 is Patsukin.

Furthermore, a nut 4 made of titanium is screwed into the male screw 1 of the head of the base 2, and a pillar body 5 made of titanium is fastened between the nut 4 and the base 2.

A titanium set screw 14 is screwed into the nut 4 to ensure the connection.

Several titanium ribs 7 are fixed to the pillar body 5, and a large number of titanium electrode wires 6 are fixed to the ribs 7.

The small hole 15 opened in the conductive shaft 9 and the small hole 16 in the iron base 2 opened continuously with the small hole 15 are compressed to test the degree of sealing to prevent electrolyte from entering the periphery of the conductive shaft 9. This is an air introduction hole.

Reference numeral 17 denotes a closed portion in which the small hole 16 was closed by welding after the test.

In this embodiment, the electrode wire 6 is fixed to the rib 7, but the pillar body 5
The rib 7 is not necessarily necessary if the shape is formed so that the electrode wire 6 can be easily fixed.

Furthermore, although the aforementioned base portions 2 are provided at only l locations on the front surface of the substrate 3, there may be other base portions provided depending on the number and size of the ribs 7, electrode wires 6, etc.
It may be provided in more than one place.

Further, although the electrode wires 6 are provided in parallel in the vertical direction as shown in the figure, they may be provided horizontally in the lateral direction, or may be intersected to form a mesh shape.

Note that the electrode wire 6 is notched at the front surface of the titanium base 2 to facilitate attachment and detachment of the base 2 and the nut 4.

The cathode electrode device shown in FIG. 4 has substantially the same structure as the anode electrode device, but here the substrate 3 is box-shaped and the rubber lining 8 is not attached.

Further, the base parts 2, 2 are both made of iron, and the base part of one base part 2 forms a bolt, and the base part of the other base part 2 forms a nut, and is screwed so as to sandwich the board 3 from the front and rear surfaces of the board 3,
Each is fixed to the substrate 3 by welding.

Therefore, the aforementioned conductive shaft 9 does not exist.

The pillar body 5, the rib 7, and the electrode wire 6 have the same structure as in the previous embodiment, but are made of iron.

18 is an inlet/outlet for electrolyte. Figure 5 shows a bipolar electrode device, which is a combination of the anode electrode device and cathode electrode device described above.
．． structure.

Here, the respective base portions 2.degree. 2 on the front and rear surfaces of the substrate 3 have gaskets 11, 11 interposed therebetween, and are not fixed to the substrate 3 by welding.

The electrode on the rubber lining 8 side of the substrate 3 is an anode, and the other electrodes are cathodes, and the materials, structures, etc. of the electrode wire 6, ribs 7, pillar bodies 5, etc. are the same as in the previous embodiment.

Thus, the pillar body 5, electrode wire 6, and rib 7 can be easily attached and detached by removing the lock screw 12, set screw 14, and nut 4, and the base portion, which is not fixed by welding, can be attached and detached freely because it is simply screwed. becomes.

Therefore, according to this invention, since the connection between the electrode wires, ribs, pillar bodies, etc. and the substrate is achieved by screwing male and female screws together, these can be mass-produced according to a certain standard. Mass assembly is now possible, making it possible to obtain an electrode device with high manufacturing efficiency and suitable for mass production.At the time of repair, each component can be removed from the board extremely easily, making repair easy and also easy to replace. It can be done.

In addition, according to this invention, the relationship between the board and each component is not fixed by welding but by screwing, which reduces the distortion of the electrode wires caused by long-term use and reduces the rate of increase in current resistance. , it has significant effects such as being able to minimize the increase in power consumption.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is a front view of the anode electrode device, Fig. 2 is a rear view of Fig. 1, and Fig. 3 is an enlarged cross-sectional view taken along line A-A in Fig. 1. 4 is a cross-sectional view of a cathode electrode device showing another embodiment, and FIG. 5 is a cross-sectional view of a bipolar electrode device showing still another embodiment. In the figure, 1 is a male screw, 2 is a base, 3 is a board, 4 is a nut,
5 is a pillar body, 6 is an electrode wire, and 7 is a rib.

Claims (1)

[Scope of utility model registration request] A base screw with a male thread formed on the head is attached to the board using a base screwing means, and a nut is screwed onto the male screw head of the base screw, and the column body is attached to the base screw by the nut. Tighten the rod at a certain distance from the substrate and approximately parallel to the substrate, or fix the electrode wire directly to this column body except for the front surface of the nut, or fix a rib to this column body and attach it to the rib. An electrode device for an electrolyzer for caustic soda, etc., characterized in that an electrode wire is fixed except for the front surface of the nut.