JP2601202Y2 - Horizontal multi-stage electrolytic cell - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal multistage electrolytic cell for seawater electrolysis.

[0002]

2. Description of the Related Art A conventional example will be described with reference to FIGS.
6 is a longitudinal sectional view, FIG. 7 is a sectional view taken along line BB of FIG. 6, FIG. 8 is a sectional view taken along line CC of FIG. 6, FIG. 9 is a sectional view taken along line FF of FIG.
FIG. 4 is an explanatory diagram of an electrode plate arrangement.

In FIG. 6, a terminal case 4 is connected to both ends of a channel type tank body 5 having a lid 6. Further, an inlet nozzle pipe 7 and an outlet nozzle pipe 8 are connected to both ends. A gas release flange 9 is attached to the upper surface of the terminal case 4.

At the upper and lower sides of the center of one terminal case 4, a current-carrying cathode rod 2 is inserted in parallel with the flow direction, and is connected to the electrode plate 1. Similarly, the other terminal case 4 has the anode conducting rod 3.
Is inserted and connected to the electrode 1 (FIG. 6).

The arrangement of the electrode plate 1 in the tank body 5 is shown in FIGS.
As shown at 0, the staggers are arranged in multiple stages parallel to the flow. In the figure, the black portion of each electrode plate 1 serves as an anode.

[0006] In the above, the current flows from the + side conducting rod 2 to the electrode plate 1, flows sequentially through the electrode plates 1 at each stage, and the − side conducting rod 3.
More flows to the power supply. During this time, seawater is electrolyzed into sodium hypochlorite. At this time, the conductive rods 2 and 3
Is a reservoir for hydrogen gas generated during electrolysis. The lower portion is a reservoir for scale generated during electrolysis.

[0007]

In the above-mentioned conventional apparatus, since the current-carrying rods are provided at the top and bottom, the area around the upper current-carrying rods becomes a gas reservoir for hydrogen gas generated during electrolysis. In order to remove this gas, a flange must be attached to the current-carrying terminal case, and piping for gas removal must be laid.

Further, the area around the lower conducting rod becomes a pool of scale generated at the time of electrolysis, so that periodic cleaning is required.

[0009]

The present invention employs the following means to solve the above-mentioned problems.

That is, in a horizontal multistage electrolytic cell having a channel-type tank body with a lid having a plurality of electrode plates arranged in multiple stages and having flanges at both ends, the box-shaped both ends are connected to the flanges at both ends of the tank body, respectively. An inlet nozzle and an outlet nozzle respectively connected to the terminal case on the upstream side and the downstream side and having a flange at both ends and having a flow path extending substantially in the direction of the terminal case substantially at the center; and the inlet nozzle. And a cathode conducting rod and an anode conducting rod which are inserted into the terminal case from the left and right ends of the connection side flange of the outlet nozzle in the flow direction and connected to the electrode plate, respectively.

[0011]

In the above, current flows from the left and right anode current supply rods to the cathode current supply rod. Further, seawater is introduced from the inlet nozzle. Then, the seawater is electrically separated by the electrode plates at each stage in the tank body. At this time, since there are no conducting rods above and below as in the conventional example, the lower surface and the upper surface of the terminal case are almost smoothly connected to the upper surface and the lower surface of the tank body, respectively, so that the fluid flows smoothly. Therefore, gas accumulation and scale accumulation do not occur.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is a sectional view taken along line EE of FIG. 1, and FIG. 4 is a sectional view taken along line DD of FIG. FIG. 5 is an explanatory view of the arrangement of the electrode plates. The parts described in the conventional example are given the same numbers and the description is omitted.
The part related to this invention will be mainly described.

In FIG. 1, a box-shaped terminal case 4 having flanges at both ends is connected to both end flanges of a tank body 5.
An inlet nozzle 7 and an outlet nozzle 8 each having a flange at both ends and having a flow path that expands toward the terminal case 4 at substantially the center are connected to the flange of each terminal case 4, respectively. As shown in FIG. 2 to FIG. 5, the cathode current-carrying rod 2 and the anode current-carrying rod 3 are inserted into the terminal case 4 in the flow direction from both right and left ends of the connection side (base side) flange of the inlet nozzle 7 and the outlet nozzle 8. Is done. The current-carrying rods 2 and 3 are connected to the reinforced electrode plates 1A at the left and right ends by welding or bolts.

The lower part of each of the electrode plates 1 and 1A in the terminal case 4 is held via a spacer 11 whose upper surface b is substantially equal to the lower surface (low surface) of the tank body 5. The upper portion is held by a spacer 12 having a lower surface c having a height substantially equal to the lower surface of the tank body 5.

In the above, a current flows from the anode current-carrying rods 3 arranged on the left and right sides to the cathode current-carrying rod 2. Further inlet nozzle 7
Seawater is introduced from. Then, the seawater is sequentially electrically separated by the electrode plates 1 of each stage in the tank body 5. At this time, the lower surface and the upper surface of the terminal case 4 are almost smoothly connected to the upper surface and the lower surface of the bath body, respectively (the upper surface b of the spacer 11 and the lower surface c of the spacer 11), so that the fluid flows smoothly. Therefore, gas accumulation and scale accumulation do not occur.

Further, the structure is simplified, and a gas vent flange, piping and the like are not required. This eliminates the need for periodic cleaning and enables safe and maintenance-free operation.

[0018]

[Effect of the Invention] Since the upper and lower surfaces of the terminal case are almost smoothly connected to the upper and lower surfaces of the tank body, the fluid flows smoothly, and the accumulation of dangerous hydrogen gas is eliminated. Also, there is no scale accumulation.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of one embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1 of the embodiment.

FIG. 3 is a sectional view taken along the line EE of FIG. 1 of the embodiment.

FIG. 4 is a view taken along the line DD of FIG. 1 of the embodiment.

FIG. 5 is an explanatory diagram of an electrode plate arrangement of the embodiment.

FIG. 6 is a longitudinal sectional view of a conventional example.

FIG. 7 is a sectional view taken along the line BB of FIG. 5 of the conventional example.

8 is a cross-sectional view of the conventional example taken along the line CC in FIG. 5;

FIG. 9 is a sectional view of the conventional example taken along line FF of FIG. 5;

FIG. 10 is an explanatory view of the arrangement of electrode plates in the conventional example.

[Explanation of symbols]

 1, 1A Electrode plate 2 Cathode conducting rod 3 Anode conducting rod 4 Terminal case 5 Tank body 6 Lid 7 Inlet nozzle 8 Outlet nozzle 10 Flow path 11, 12 Spacer

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Seiichi Harada 12 Nishiki-cho, Naka-ku, Yokohama-shi Mitsubishi Heavy Industries, Ltd.Yokohama Works, Ltd. 56) References JP-A-55-89488 (JP, A) JP-A-59-185789 (JP, A) JP-A-55-58663 (JP, U) JP-A-2-82774 (JP, U) (58) ) Surveyed field (Int.Cl. ⁶ , DB name) C25B 1/00-15/08 C02F 1/46

Claims (1)

(57) [Scope of request for utility model registration] 1. A horizontal multi-stage electrolytic cell having a channel-type tank body with a lid having a plurality of electrode plates arranged in multiple stages and having flanges at both ends, the box-shaped both ends being connected to the flanges at both ends of the tank body, respectively. A terminal case having a flange, and an inlet nozzle and an outlet nozzle respectively connected to the upstream and downstream terminal cases, having flanges at both ends and having a flow path extending substantially in the direction of the terminal case at substantially the center,
A horizontal type comprising a current-carrying cathode electrode and a current-carrying anode electrode which are inserted into the terminal case in the flow direction from the left and right ends of the connection side flanges of the inlet nozzle and the outlet nozzle, respectively, and are connected to the electrode plate. Multi-stage electrolyzer.