JP2535383Y2 - Anti-corrosion structure of valve and base - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve to be installed underground and a corrosion protection structure for a base thereof.

[0002]

2. Description of the Related Art A valve which is installed underground to open and close a pipeline is installed while being supported by a gantry.

[0003] Since the above-described valves and gantry are installed underground, anticorrosion treatment is applied to protect them from electric erosion.

[0004] Conventionally, the valve and the gantry are integrally formed or, in the case of a separate body, directly connected and integrated with bolts, and the valve and the gantry are integrally subjected to anti-corrosion treatment such as anti-corrosion coating.

[0005]

[Problems to be Solved by the Invention] By the way, in the case of the above-mentioned valve, during transportation, storage, installation work, or the like, the base may collide with an object or the ground portion may be rubbed, so that the corrosion protection may be damaged. Therefore, there is a problem that corrosion occurs in the valve.

In addition, care must be taken in handling such as transportation, storage and installation of the valve so that the corrosion protection of the gantry is not damaged.

In order to solve the above-mentioned problems, the present invention can reliably protect the valve itself from corrosion, improve the reliability of anticorrosion, and handle the storage and installation. It is an object of the present invention to provide an easy anti-corrosion structure for a valve and a gantry.

[0008]

In order to solve the above-mentioned problems, the present invention forms a valve and a gantry supporting the valve separately, and performs an anticorrosion treatment on the outer surface of each of the valve and the gantry. And an electrical insulating member is interposed between the overlapping surfaces of the valve and the mount, and the valve and the mount are bolted together .
It employs a configuration in which an insulating packing and an insulating sleeve are used to fix the device in an electrically insulated state.

[0009]

[Function] Since the valve and the gantry are separate bodies, anti-corrosion treatment can be applied to each valve. Moreover, since the valve and the gantry are fixed in an insulated state, the valve can be affected even if the erosion protection of the gantry is broken. And the reliability of anticorrosion is improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, a valve 1 installed in the middle of a pipe buried in the ground to open and close the pipe is supported by a separate stand 2 fixed to a lower portion thereof.

The structure of the valve 1 is not limited as long as it can open and close the pipe line electrically or manually, and examples thereof include a steel valve, a plug valve, and a ball valve. This valve 1
The gantry 2 is subjected to anticorrosion treatment such as anticorrosion coating on its outer surface, and the gantry 2 is fixed to the lower portion of the valve body 1a in an electrically insulated state.

The gantry 2 can adopt various shapes and structures. The first example shown in FIGS. 1 and 2 is formed by providing an upper plate 4 and a lower plate 5 above and below a frusto-conical wall 3, and forming a valve. An insulating packing 6 is interposed between the lower surface of the main body 1a and the upper plate 4, the upper plate 4 and the valve main body 6a are connected by a plurality of bolts 7, and an insulating sleeve 8 and an insulating washer are provided between the upper plate 4 and the bolts 7. 9 is fixed, and the gantry 2 is fixed to the valve body 1a in an electrically insulated state.

The gantry 2 of the example shown in FIG. 3 is formed using a thick plate, and is electrically insulated and fixed to the valve body 1a using bolts 7 as in the example of FIG.

The example of the gantry 2 shown in FIG. 4 is formed using a channel material, and is electrically insulated and fixed to the valve body 1a with bolts 7.

The anti-corrosion structure of the present invention has the above-described structure. The valve 1 and the gantry 2 are formed separately, and each is subjected to anti-corrosion treatment.
Is fixed in an electrically insulating manner, so that during transportation, storage, installation work, etc., even if corrosion
When the valve 1 is installed in the ground, the valve 1
Can be reliably protected from the occurrence of electrolytic corrosion.

Further, since the corrosion prevention of the valve 1 can be secured,
There is no need to pay attention to storage and handling during installation, and workability can be improved.

[0018]

[Effect] As described above, according to the present invention, the valve and the gantry are separately provided, each is subjected to anticorrosion treatment, an electric insulating member is interposed between the overlapping surfaces of the valve and the gantry, and the valve and the gantry are connected. Bolts, insulating packing and insulating sleeve
Since it is fixed in an electrically insulated state, even if the anticorrosion treatment of the frame to be grounded is damaged, the corrosion resistance of the valve can be maintained,
The reliability of anticorrosion of valves installed underground can be improved , and despite the strong connection with bolts,
Insulation packing and insulation sleeve allow the valve and the
The air insulation state can be maintained.

Further, even if the anticorrosion treatment of the gantry is damaged, the valve is not affected even if it is damaged. Therefore, handling such as transportation, storage and installation work of the valve is facilitated, and workability can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing the anticorrosion structure of a valve and a gantry according to the present invention.

FIG. 2 is a partially cutaway front view in which main parts of the above are enlarged.

FIG. 3 is a partially cutaway front view showing a different example of a gantry;

FIG. 4 is a partially cutaway front view showing a different example of a gantry;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Valve 1a Valve body 2 Base 6 Insulation packing 7 Bolt 8 Insulation sleeve 9 Insulation washer

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoichi Tokame 2-3-111, Noribori, Nishi-ku, Osaka Co., Ltd. (56) References Japanese Utility Model Sho-59-150062 (JP, U) Japanese Utility Model Hei 2-48681 (JP, U) Japanese Utility Model Showa 63-146266 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A valve and a gantry supporting the valve are formed separately, anti-corrosion treatment is performed on each outer surface of the valve and the gantry, and an electrical insulating member is interposed between the overlapping surfaces of the valve and the gantry; , The valve and the base are insulated by bolts.
Anti- corrosion structure of valve and pedestal that is fixed in an electrically insulated state using a kin and an insulating sleeve .