JPS6011096Y2 - Storage tank sacrificial anode mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting structure for a sacrificial anode of a storage tank.

As a corrosion prevention measure for storage tanks that store hot water, sacrificial anodes are installed.

By inserting a metal that has a greater tendency to ionize than a corroding metal, a corrosion-preventing current that suppresses the local battery action of the constituent materials is obtained, which is effective in preventing pitting.

However, when the sacrificial anode in the storage tank becomes worn out, or when a new sacrificial anode is to be installed in an existing storage tank, the replacement work cannot be done easily on site.

Traditionally, in most cases, this sacrificial anode was installed during the factory production stage of the storage tank.
It was difficult to install and replace the existing tank.

The present invention has devised a sacrificial anode mounting structure that is easy to install and replace even in existing storage tanks.As shown in the drawing, for example, bolts 2 and nuts 3 A structure is adopted in which a locking metal fitting 4 with a magnetic plate 5 is connected with a piano wire 6 and magnetically attached, and a sacrificial anode 7 is attached to the locking metal fitting 4.

To explain specifically according to the embodiments in the drawings, FIG. 1 shows a cross section perpendicular to the axis of the storage tank, and FIG. 2 shows an enlarged front view of the inner wall. The piano wires 6 are shown attached at predetermined intervals on the circumference of the circumferential surface, and the piano wires 6 are interconnected to groups of locking metal fittings 4 on the circumference.

As shown in FIG. 2, anodes 7 made of, for example, magnesium are stretched between the groups of locking metal fittings 4, respectively.

That is, this example shows an example in which sacrificial anodes 7 are arranged near the inner circumferential surface of the storage tank 1 in parallel with the axis at predetermined intervals.

FIG. 5 shows an overall view of the present invention applied to a horizontal storage tank, and FIG. 6 shows a cross section taken along the arrow in FIG.

As seen in FIGS. 5 and 6, a plurality of sacrificial anodes 7 are stretched parallel to the axis of the storage tank at predetermined intervals on the inner peripheral surface of the storage tank. At both ends, there are two rings made of piano wire 6 stretched around the inner surface of the storage tank (the rings are stretched along a plane perpendicular to the axis of the storage tank by means of a locking metal fitting 4 on the inner peripheral surface of the storage tank). It is supported by the locking metal fitting 4 of the

In addition, in the figure, 8 indicates a heating coil for heating the water in the storage tank.

The present invention provides a mounting structure for such a sacrificial anode 7, as shown in Figs. 3 and 4, which uses magnetic attachment and piano wire fixation to allow for free mounting, dismounting, and positioning. The structure ensures conduction with the sacrificial anode 7.

That is, a ring having approximately the inner diameter of the tank, in which locking metal fittings 4 consisting of bolts 2 and nuts 3 are held at predetermined intervals by piano wire 6, is brought into the tank, and a magnet plate 5 attached to each locking metal fitting 4 is inserted into the tank. The entire ring is fixed to the inner circumferential surface of the tank by magnetically attaching it to the inner circumferential surface of the tank.

Then, the sacrificial anode 7 having a length corresponding to the length of the storage tank is hooked onto the bolts 2 of each of the locking fittings 4 fixed at this predetermined pitch and tightened with nuts.

As a result, the sacrificial anode 7 can be freely fixed to the inner wall surface of the tank, the conduction between the sacrificial anode and the tank structural material is ensured, and replacement can be performed as needed.

Therefore, according to the present invention, the required number of sacrificial anodes can be freely installed without damaging the inner wall of the storage tank, their positioning is free, continuity is ensured, and installation workability is also good. .

In the most preferred embodiment of the present invention, as shown in the drawings, at least two rings are formed by connecting a plurality of locking metal fittings 4 with magnets 5 fixed to the back side with piano wires 6, as shown in the drawings. A plurality of sacrificial anodes are magnetically attached by the magnet 5 along the circumferential surface of the inner wall surface of the storage tank 1 and spaced from each other in the axial direction of the storage tank 1, and between the two magnetically attached rings, a plurality of sacrificial anodes are placed. 7 is stretched by the locking metal fitting 4 of the ring, the weight of each sacrificial anode is supported by the overall magnetic force of the entire ring being magnetically attached to the storage tank by a number of magnets 5. Therefore, the support is more complete than when each sacrificial anode is magnetically attached independently.

For these reasons, the present invention makes it possible to achieve corrosion protection for existing storage tanks, which was difficult in the past, and also enables semi-permanent anti-corrosion maintenance due to the ease of replacement work, making it possible to prevent corrosion in old buildings. It can greatly contribute to equipment maintenance.

[Brief explanation of drawings]

Fig. 1 is a sectional view taken in a direction perpendicular to the axis of a storage tank showing an example of the application of the present invention, Fig. 2 is a partially enlarged front view similar to Fig. 1, and Fig. 3 is an enlarged sectional view of the locking metal part. , Fig. 4 is an enlarged sectional view cut in a different plane from Fig. 3, Fig. 5 is a partially cutaway sectional view of a storage tank to which the present invention is applied, and Fig. 6 is a sectional view taken in the direction of the arrow in Fig. 5. It is a diagram. 1... Storage tank, 2... Bolt, 3... Met, 4... Locking metal fittings, 5... Magnet plate, 6... Piano wire, 7... Sacrificial anode.

Claims (1)

[Scope of utility model registration request] At least two rings formed by connecting a plurality of locking metal fittings 4 with magnets 5 fixed to the back surface using a piano wire 6,
A plurality of sacrificial rings are magnetically attached by the magnet 5 at intervals in the axial direction of the storage tank 1 and along the circumferential surface of the inner wall surface of the storage tank 1, and between the two magnetically attached rings, a plurality of sacrifice rings are attached. A sacrificial anode mounting structure for a storage tank in which an anode 7 is stretched across the locking metal fitting 4 of the ring.