JPH0453357Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is an electrode rod mounting structure for an ion generator that is installed exposed in a seawater suction box (sea chest) formed on the bottom or side of a ship. It is related to.

(Prior Art) Ships have piping equipment that uses seawater outside the ship, such as a cooling seawater pipe system, which sucks seawater from a seawater suction box (sea chest) formed at the bottom or side of the ship. A cooling water pump is used to cool various ascites and coolers, and finally the water is piped to be discharged overboard from a discharge port provided on the ship's side.

By the way, as mentioned above, in a piping system that draws in seawater from outside the ship and distributes it, corrosion due to seawater and the attachment and growth of microorganisms in the seawater inevitably occur on the inner surface of the piping, which impairs the cooling function. This results in a problem of lowering the .

Therefore, in order to prevent the above-mentioned problem from occurring on ships, aluminum or copper electrode rods 1 are attached to the hull plate S' in the seawater suction box B formed on the bottom or side of the ship, and these are used as anodes to connect the hull S. An ion generating apparatus consisting of a commercially available electrode C that serves as a cathode to generate ions by electrolysis and a power supply control panel D is installed as shown in FIG. 2. If the aluminum or copper electrode rods are gradually worn out by electrolysis and their effectiveness decreases, they are replaced with new electrode rods when the ship is docked in the hull.

(Problems to be solved by the invention) In the conventional electrode rod described above, the structure of the electrode rod itself and its mounting structure are as shown in Fig. 3. The structure of the electrode rod 1 itself, which is attached watertightly to S'', is such that a stepped small diameter 1' with a male thread 1'' is provided at one end, and the small diameter portion 1' is inserted into the hole S'' and welded. It has a structure in which a short cylindrical metal sleeve body 2 is fitted through an insulating sealing material 3, and is inserted into the hole S'' of the hull plate S' from outside the ship with the small diameter portion 1' of the electrode rod 1 facing upward. The mounting structure was such that the sleeve body 2 was inserted and welded in a watertight manner. Therefore, the conventional electrode rod 1 cannot be replaced at sea, and when the ship S is docked, for example, during periodic inspections pursuant to the Ship Safety Act or the regulations of classification societies, or when docked due to damage below the waterline, etc. This resulted in the inconvenience of having to wait for replacement and not being able to do it in a timely manner.

(Means for solving the problem) The present invention was developed to solve the above-mentioned disadvantages of the conventional electrode rod, and it is designed to be inserted watertight into a hole made in the hull plate of the seawater intake box of a ship. Can be fixed,
In the electrode rod mounting structure of the ion generator, the electrode rod mounting structure of the ion generator is provided with a stepped small diameter portion having a male thread at one end, and a metal sleeve body inserted into the hole and welded is externally fitted to the small diameter portion via an insulating sealing material. A mounting flange is fixed to the outer periphery of the sleeve body so that the electrode rod can be seated from inside the ship, and upper and lower flange seats corresponding to the mounting flanges are provided on the upper and lower surfaces of the edge of the hole, respectively. The gist of the invention is that it is fixedly fixed by welding directly or indirectly through a mounting support tube, and that the flange seat on the lower side is provided with a watertight closing cap body that is configured to be detachable. It is something to do.

(Function) The electrode rod mounting structure of the present invention is such that the upper and lower flange seats 7 and 8 are attached above and below the hole S'' provided in the hull plate S' directly to the edge of the hole S'' or through a support tube 9. Since the flange seats 7 and 8 having approximately the same diameter can be welded even if the holes S'' are different,
Since the electrode rod 1 is fitted with a mounting flange 6 that can be seated on the upper flange seat 7, it can be mounted in a suspended watertight manner from inside a ship. Since the cap body 10 that can contain the electrode rod 1 is detachably provided, the electrode rod 1 can be replaced even outside the dock by attaching the cap body.

(Example) The present invention will be described below based on an example shown in the drawings. Figures 1A and 1B are longitudinal cross-sectional views showing the mounting structure of the present invention; FIG. 3 is a longitudinal sectional view showing a conventional electrode rod mounting structure. In FIGS. 1A and 1B, 1 is an electrode rod, 2 is a metal sleeve body fitted on the upper part of the electrode rod 1 via an insulating sealing material 3, and 4 and 5 are sleeve bodies 2 and 4 on the electrode rod 1. The washer and nut for fixing the electrode rod are the same as the structure of the conventional electrode rod 1 shown in FIG.

Reference numerals 6 to 10 indicate members provided in the present invention, and 6 is a mounting flange that is integrally fitted onto the sleeve body 2 in order to hold and mount the electrode rod 1 in a suspended manner. . And 7 and 8 are
On the upper and lower sides of the hull plate S' having a hole S'' through which the electrode rod 1 is inserted, a hole S is formed between the mounting flange 6 with the electrode rod 1 attached in the hole S'' or the cap body 10 described later. An upper flange seat and a lower flange seat for watertightly closing one end of the
If S'' is large, as shown in Fig. 1A, install the mounting support cylinder 9 integrally in the hole S'', and weld and fix the upper flange seat 7 and the lower flange seat 8 to the upper and lower ends of the mounting support tube 9, as shown in Fig. 1A.
If the hole S'' is small, it can be directly welded and fixed to the hull plate S' as shown in Figure 1B.
is a watertight closure cap that is configured to be removably attached to the lower flange seat 8, and is worn out while the ship is at sea and the electrode rod 1 is attached and used as shown in Fig. 2. In this case, the cap body 10 is removed underwater using a diver and the lower flange seat 8 is removed.
By attaching the electrode rod 1 to the hole S'' through a suitable packing, the hole S'' of the hull plate S' can be closed watertight with the electrode rod 1 contained therein.
Therefore, after the cap body 10 is installed, the hole S'' can be isolated from the seawater outside the ship by the cap body 10, so that the electrode rod 1 can be replaced inside the ship.

(Effect of the invention) As described above, the present invention provides a mounting flange for suspension support on the electrode rod, and provides upper and lower flange seats surrounding the hole on the hull plate and a mounting support tube as necessary, and furthermore, a lower flange seat. Since a removable watertight closure cap is provided, the electrode rod can be suspended in the hole from inside the ship, and by attaching the cap from outside the ship, it can be closed watertight from seawater from inside the ship. Therefore, electrode rods can be replaced onboard the ship, so they can be replaced in a timely manner without requiring an expensive dock. In addition, by using a mounting support tube, a flange seat of approximately the same diameter can be fixed to the hull plate even if the electrode rod mounting hole is large, so it can be applied to existing ships. There is an effect.

[Brief explanation of the drawing]

The drawings show the electrode rod mounting structure of the present invention. Figure 1 (a) and (b) are longitudinal cross-sectional views of the same; (a) is the structure when the mounting hole is large; FIG. 3 is a longitudinal sectional view showing a conventional electrode rod mounting structure. 1 is an electrode rod, 2 is a sleeve body, 6 is a mounting flange, 7 is an upper flange seat, 8 is a lower flange seat,
9 is a mounting support cylinder, and 10 is a cap body.

Claims (1)

[Scope of utility model registration request] A stepped small diameter part with a male thread at one end is provided so that it can be watertightly inserted and fixed into a hole made in a hull plate in a seawater intake box of a ship, and a metal sleeve body inserted into the hole and welded is insulated in the small diameter part. In the electrode rod mounting structure of the ion generator, which is externally fitted with a magnetic sealing material, a mounting flange is fixed to the outer periphery of the sleeve body so that the electrode rod can be seated from inside the ship, and At the edge of the hole, upper and lower flange seats corresponding to the mounting flanges are welded and fixed to the upper and lower surfaces, respectively, either directly or indirectly through a mounting support tube, and the flange seats on the lower surface side are fixedly welded. It is characterized by being equipped with a watertight closing cap body configured to be detachable, and by attaching the cap body when replacing the electrode rod, the replacement can be performed from inside the ship. Electrode rod mounting structure for marine ion generator.