JPH0137270Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a support structure for piping, and in particular, to an improvement of a support structure for piping suitable for piping equipment in petrochemical plants, ships, etc.

[Conventional technology]

Conventionally, as a support structure for this type of piping, the sixth
A configuration as shown in the figure is known.

That is, the piping 5 whose outer surface is coated with corrosion-resistant paint is placed over a plurality of mounts 3 (one shown) each having legs 1, and the piping 5 is mounted using U-fittings 7 screwed to each mount 3. 3.

However, in such a pipe support structure, water or seawater tends to accumulate near the contact surface between the lower side of the laid pipe 5 and the pedestal 3, and the pipe corrodes in this area despite the application of corrosion-resistant paint. tends to progress over time.

In addition, this type of piping 5 is subject to changes in the axial direction due to rises and falls in the temperature of the installation environment, external pressure due to waves near the coast or on ships, and fluid pressure of a transporting object such as crude oil flowing inside the pipe 5. The piping 5 often expands, contracts, or slides, and the contact surface of the piping 5 with the pedestal 3 is easily damaged, which poses a problem of promoting corrosion.

Moreover, in piping equipment, it is common for the piping 5 to be supported at a considerable number of locations, so it is extremely troublesome to apply complete corrosion protection to all of the parts that come in contact with the pedestal 3. , which led to an increase in costs.

[Problem that the invention attempts to solve]

The present invention was made to solve these conventional drawbacks, and it is difficult for corrosion to occur at the contact part of the piping with a supporting device such as a frame, and it is possible to prevent the piping from being corroded without causing damage to the piping itself. The purpose of this invention is to obtain a support structure for piping that can easily ensure expansion/contraction and sliding.

[Means for solving problems]

In order to solve these problems, this invention
This is a support structure for piping in which the piping is supported in contact with a support device, and the outer periphery of the piping is covered with a corrosion-resistant metal using a corrosion-resistant adhesive itself or a corrosion-resistant adhesive layer in which the base fabric is impregnated with the corrosion-resistant adhesive. The plates are tightly fixed and the piping is brought into contact with the support device through the corrosion-resistant metal plate.

[Effect]

According to such means of the present invention, the vicinity of the contact portion of the pipe with the support device is covered with a corrosion-resistant adhesive layer, and the corrosion-resistant metal plate closely fixed to the pipe directly contacts the support device.

〔Example〕

Examples of the present invention will be described below. Note that parts common to the conventional example are given the same reference numerals.

1 and 2 are a partial perspective view and a vertical sectional view showing an embodiment of the piping support structure of the present invention.

In both figures, a conventionally known pedestal 3 having a plurality of legs 1 is spanned so that a pipe 5 is placed thereon. Although the piping 5 is actually spanned over a plurality of frames 3, only one portion of the frames 3 is shown for convenience.

A corrosion-resistant metal plate, such as a stainless steel plate 11, is closely fixed to the outer periphery of the pipe 5 with a corrosion-resistant adhesive layer 9.

As shown in FIGS. 3 and 4, this stainless steel plate 11 has a rectangular shape and is curved in advance to have an arcuate cross section in accordance with the curved shape of the outer periphery of the pipe 5, and a corrosion-resistant adhesive layer is coated on the inner surface of the curve. 9 is adhered to the entire curved inner surface of the pipe 5, and the curved inner surface thereof is pressed against the outer periphery of the pipe 5 so as to be tightly fixed. Note that the corrosion-resistant adhesive layer 9 is adhered to the pipe 5 by pressure bonding, protruding from the stainless steel plate 11.

In addition, although the corrosion-resistant adhesive layer 9 is not shown,
For example, on a base fabric made of heat-resistant fibers such as glass fibers and polyester fibers woven into a belt shape,
It is formed by impregnating it with a heat-resistant and corrosion-resistant adhesive paint (agent) made by mixing alkyld resin, aluminum powder, anti-rust pigment adhesive, iron oxide powder, etc. and making it into a paste.

However, the corrosion-resistant adhesive layer 9 does not need to be a base fabric impregnated with a corrosion-resistant adhesive paint, and may be the above-mentioned corrosion-resistant adhesive paint itself.

Then, the piping 5 covered with the stainless steel plate 11
, with the stainless steel plate 11 facing down, and the frame 3.
are placed so that they are in contact with each other, and are sandwiched between U metal fittings 7 having thread grooves 13 formed at both tips, and the tips are passed through the holes 15 of the pedestal 3 and the nuts 17 are screwed in from the underside of the pedestal 3. By doing so, the U bracket 7 can be used to connect the frame 3.
It is held in place by being pressed down.

In such a pipe support structure, the vicinity of the contact portion of the pipe 5 with the frame 3 is covered with a corrosion-resistant adhesive layer 9, and the corrosion-resistant adhesive layer 9 is covered with a stainless steel plate 11.
Since it is attached to the pipe 5 so as to protrude from the pipe 5, it is difficult for water etc. to penetrate between the pipe 5 and the stainless steel plate 11.

Moreover, the stainless steel plate 11 attached to the pipe 5
Since it directly contacts the pedestal 3, expansion/contraction and sliding of the piping 5 can be ensured, and the piping 5 is less likely to be damaged, and the stainless steel plate 11 itself is also less susceptible to corrosion due to its nature.

Note that the corrosion-resistant adhesive layer 9 is securely attached to the stainless steel plate 1.
In order to adhere to the pipe 5 in a state protruding from the stainless steel plate 11, in addition to applying a corrosion-resistant adhesive layer 9 on the inner front surface of the stainless steel plate 11, as shown in FIGS. Curved inner surface center part 1
9, it is preferable to make the corrosion-resistant adhesive layer 9 thick.

FIG. 5 shows another embodiment of the piping support structure of the present invention, in which the piping is sandwiched from both sides with a stainless steel plate 11 similar to that shown in FIG. 5, and not only the abutting part with the pedestal 3 but also the abutting part with the U metal fitting 7 are supported by making contact with each other via the stainless steel plate 11.

In this way, the piping support structure of the present invention has three
The object of the invention can be achieved if it is carried out at a part or plural parts of the abutting part of the support device of the piping 5 consisting of the U metal fitting 7 and the support device, and the purpose of the invention can be achieved. The deposition position is arbitrary.

However, since water, etc. tends to flow downward and accumulate there, as in the embodiment shown in FIG.
In this case, it is effective to tightly fix the stainless steel plate 11 at a location where the lower side is supported by a support device.

Further, although the shape of the stainless steel plate 11 is arbitrary, it is preferable to roughen the inner surface in order to increase the adhesive force with the corrosion-resistant adhesive layer 9, and conversely, the outer surface should be roughened to allow the piping 5 to expand and contract. It is best to process it smoothly to ensure that.

Furthermore, the structure in which the stainless steel plate 11 is closely fixed to the piping 5 may be fixed directly to the outer periphery of the conventionally known steel piping with a corrosion-resistant adhesive layer 9, or by applying an anticorrosive paint to the outer periphery of the piping, or by applying the above-mentioned method. It is also possible to wrap a tape-like material impregnated with a paste-like corrosion-resistant adhesive paint around a base fabric such as the one described above, and then tightly fix the material over the base fabric.

In addition, as a support device in the present invention, the piping 5 is placed on the pedestal 3, and the U
In addition to the device combined with the metal fitting 7, various types of support devices such as a support device that simply places the piping 5 on the pedestal 3 without using the U metal fitting 7, a support device that supports the piping 5 so as to suspend it from above, etc. are envisioned. .

[Effect of idea]

As explained above, in the pipe support structure of the present invention, the vicinity of the contact part with the support device of the pipe is covered with a corrosion-resistant adhesive layer, and the corrosion-resistant metal plate closely fixed to the pipe is in direct contact with the support device. from,
Water and seawater are less likely to collect around the outer circumference of the pipes, making it difficult for pipes to corrode, and even if the pipes expand, contract, or slide, damage to the pipes can be suppressed, and from this point of view as well, corrosion of the pipes can be suppressed. .

Moreover, since it is only necessary to tightly fix the corrosion-resistant metal plate to the pipe using a corrosion-resistant adhesive layer, the workability is good even when the pipe has many supporting points, and the cost is low.

In particular, when a corrosion-resistant metal plate to which a corrosion-resistant adhesive layer has been applied in advance is closely fixed to the pipe as a protection plate, the workability is significantly improved.

[Brief explanation of the drawing]

1 and 2 are partial perspective views and vertical sectional views showing one embodiment of the piping support structure of the present invention, and FIGS. 3 and 4 show the corrosion-resistant metal plate with a corrosion-resistant adhesive layer shown in FIG. 1. A perspective view and a side view, FIG. 5 is a longitudinal sectional view showing another example of the piping support structure of the present invention, and FIG. 6 is a partial perspective view showing a conventional piping support structure. 3... Support device (frame), 5... Piping, 7...
Support device (U metal fitting), 9...Corrosion-resistant adhesive layer, 11
...Corrosion-resistant metal plate (stainless steel plate).

Claims (1)

[Claims for Utility Model Registration] (1) In a support structure for piping in which the piping is supported in contact with a support device, the piping is tightly fixed to the outer periphery of the piping by a corrosion-resistant adhesive layer. A support structure for piping, characterized in that the piping is abutted via a corrosion-resistant metal plate. (2) The support structure for piping according to claim 1, wherein the corrosion-resistant adhesive layer is formed on the piping so as to protrude from the corrosion-resistant metal plate. (3) The support structure for piping according to claim 1 or 2, wherein the corrosion-resistant adhesive layer is formed by impregnating a base fabric with a corrosion-resistant adhesive.