JPH082557Y2 - Existing piping cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a pipe cover for wrapping an existing pipe from the outside.

(Prior Art) For example, in a piping line in which toxic gas, corrosive gas, etc. flow, a straight pipe, a T-shaped pipe, an elbow pipe or a U-shaped pipe due to expansion and contraction of the pipe due to the temperature difference of the atmosphere, vibration due to an earthquake There is a possibility that a portion where pipes are connected, a welded joint portion, a sealing material, or the like is fatigued or damaged, an internal fluid leaks, or air or rainwater flows in from the outside. Leakage of toxic gas may cause air pollution or environmental damage, so if such a situation is discovered, immediately stop the piping line and repair the pipe or replace the connecting member. I need to do it.

(Problems to be solved by the invention) However, when the piping line is long, there are many sealing members and joints, and it is difficult to identify the leakage point. It will take a long time.

Further, when the leaked portion is found and the repair is performed, the piping line must be completely stopped, so that if the line is stopped for a long time or for a long time, a great loss may occur due to the production stop.

In order to prevent such accidents, it is difficult to find out whether the elastic seal member is damaged or worn at the sealing point by only visual inspection even when regularly inspecting the leaking point of the piping line. The maintenance work is also troublesome.

The present invention has been made in order to solve the above-mentioned drawbacks and problems of the prior art, and it is easy to identify the leak location of the piping line, and even if there is a leak accident, it will not directly leak to the ground or the atmosphere. Provide an existing pipe cover that can be continuously operated without stopping the pipe line immediately, can easily perform maintenance work on the pipe line, and can be installed on existing equipment without any problems. The purpose is to

(Means for Solving the Problems) In order to achieve the above object, the present invention connects a tubular body composed of a straight pipe, a T-shaped pipe, an elbow pipe, an L-shaped pipe or the like through a connecting member such as a joint. The existing pipe cover used for the existing above-ground piping system, which has a U-shaped cross section and is deformable and has a chemical resistance that is large enough to wrap the pipes or the connecting members from the outside. On the open end side of a transparent fluororesin transparent sheet having weather resistance and heat resistance, a fastener for continuously connecting the open ends is attached,
The existing pipe cover is characterized in that both ends in the axial direction of the transparent sheet connected by the fastener are tightened and sealed to the pipe body by a tightening member.

(Operation) In the piping line having such a configuration, even an existing piping line is covered with a transparent sheet having a U-shaped cross section, the open side ends are closed with fasteners, and both axial ends are provided with tightening members. Since it is tightened and sealed, the existing pipe can be easily covered and sealed from the outside. As a result,
Since the piping line and the outside air will be shut off, gas or chemicals will not leak to the outside of the piping line, and the cover itself will prevent this leakage, etc. It is possible to easily repair the leaked portion because the leaked portion can be seen from the outside due to the deformation of itself or the color of the gas or liquid accumulated inside.

Further, since the leak location can be found only by visually observing the piping line from the outside, maintenance and inspection of the piping line is facilitated, and no damage is caused by a production stop or the like.

(Embodiment) Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 is a perspective view showing an example of a piping line according to the present invention, FIG. 2 is a schematic perspective view showing an embodiment of the present invention, and FIG.
FIG. 4 is an exploded perspective view showing the fastener in an enlarged manner, and FIG. 4 is a sectional view showing a meshing state of the fastener.

For example, many pipes extend in a line inside or outside the factory. The pipe line L is, as shown in FIG. 1, a straight pipe 1, a T-shaped pipe 2, an elbow pipe 3 or L. It is configured by connecting the character tube 4 and the like, and these tube bodies C (general term for the straight tube 1, the T-shaped tube 2, the elbow tube 3, and the L-shaped tube 4) via a connecting member R such as a joint 5. .

In the present embodiment, the pipe C or the connecting member R of such an existing pipe line L is seen from the outside, and the transparent sheets S ₁ to ₅ shown by the alternate long and short dash line in FIG. ₁ (the suffix is the pipe C
Which corresponds to each part of). Note that, in FIG. 1, for simplicity, the transparent sheets S ₁ to ₅ are continuously attached, but in reality, each tubular body C or each connecting member R is individually covered and tightened. It is clamped and fixed to the pipe body C by a member.

The shapes of the transparent sheets S ₁ to S ₅ are different depending on the mounting position of the piping line L. For example, as shown in FIG. 2, the transparent sheet S ₅ covering the joint 5 portion is formed in a capsule shape by heat-sealing the large diameter portion 6 and the conical portions 7 on both sides to each other. The transparent sheet S ₅ is composed of a thin film made of a soft fluororesin, has a size enough to cover the joint 5 portion from the outside, and has a cross section perpendicular to the axis U.
It is a letter-shaped, side open type, and a fastener 8 is attached to the open side end.

As the fastener 8, as shown in FIGS.
The transparent sheet S ₅ is composed of engaging members 9 and 10 made of a soft fluororesin attached to the open side end by heat fusion, and a slider 11 for engaging the engaging members 9 and 10.
The engaging member 9 has a pair of locking pieces 9b, 9b protruding upward from the tip of the base plate portion 9a and bent in a hook shape, and the engaging member 10 is the front end of the base plate portion 10a. Has a pair of locking pieces 10b, 10b protruding downward from the front end and bent at the ends in a hook shape. The slider 11 is an engaging member above the central plate 12.
Passages 13 for receiving the engaging members 9 are provided through the passages 13 for receiving the passages 10, and the passages 13 and the like are configured to join at the rear end portion of the central plate 12. ing. Therefore, to move the slider 11, the locking pieces 9a by inserting the engaging members 9 and 10 to the passage 13, etc., 10a meshes as shown in FIG. 4, the open end of the transparent sheet S ₅ Are continuously connected to form a tubular shape as a whole.

FIG. 5 shows a transparent sheet S ₂ covering the T-shaped tube 2. This transparent sheet S ₂ is formed by forming pipe insertion holes 15 on three sides and connecting shoulders 16 with fasteners 17.
Unlike the above-mentioned fastener 17, this fastener 17 is adapted to be locked by the concave and convex fitting of the arrow head portion 18 and the holding portion 19 as shown in FIG.

 Next, the operation will be described.

The transparent sheets S ₁ to ₅ are separately formed so that the straight pipe 1, the T-shaped pipe 2, the elbow pipe 3, the L-shaped pipe 4 or the joint 5 portion of the existing piping line L can be individually covered. . Then, these transparent sheets S ₁ to ₅ are attached to the tubular bodies C or the connecting members R, and the transparent sheets S ₁ to ₅ are attached.
The open side end of is connected continuously by fasteners 8 or 17,
The whole is formed into a tubular shape.

Then, both ends of each of the transparent sheets S ₁ to _{5 in} the axial direction are directly tightened by using a tightening band or a suitable tightening member, or the end of each transparent sheet S is formed of the same material as the transparent sheet S. Tighten through packing or spacers. Depending on the case, each transparent sheet
The ends of S ₁ to ₅ may be joined by heat fusion.

In this way, the existing piping line L is covered with the transparent sheets S ₁ to S ₅ over substantially the entire length.

In such a state, it is assumed that a leak occurs in any part of the piping line L. The fluid or the like flowing out from this leaking portion is sealed in the transparent sheets S ₁ to S ₅ and there is no risk of leaking to the outside. Even at the fasteners 8 and 17, the locking pieces 9b and 10b are in close contact with each other, so that gas leakage does not occur.

If the fluid has a color, the transparent sheet S ₁ ~
The occurrence of leakage and the leakage position are immediately known by the color change of ₅ , and this portion can be repaired. Even if this leaking fluid is a high temperature and corrosive fluid, etc., since the transparent sheets S ₁ to ₅ have chemical resistance and heat resistance, they will leak to the outside, pollute the atmosphere and damage the environment. There is no fear of raising it.
Further, even if this piping line L is installed outdoors, since the transparent sheets S ₁ to ₅ have weather resistance, there is no risk of corrosion, and there is no risk of leakage due to this corrosion.

In particular, since the transparent sheets S ₁ to ₅ are fastened to each tubular body C with a band or the like, even if any leak occurs in any of the piping lines L, it is necessary to judge the leak by using each transparent sheet S as one unit. Therefore, the leak portion can be searched in a very small range, the occurrence of the leak and the leak position can be detected very easily, and the countermeasure can be easily taken.

The present invention is not limited to the above-mentioned embodiments, but can be variously modified.

For example, in the above-described embodiment, the tubular body C is substantially entirely covered with the transparent sheets S ₁ to ₅ , but the present invention is not limited to this, and the tubular body C may be partially covered. It may be covered with the transparent sheets S ₁ to S ₅ .

As the material of the transparent sheet S, a soft fluororesin having chemical resistance, weather resistance and heat resistance is used. Examples of the soft fluororesin include not only Cefraralsoft, but also, for example, a perfluoroalkoxy resin (commonly known as PFA) which is a copolymer of tetrafluoroethylene and perfluoroalkyl vinyl ether, and a copolymer of tetrafluoroethylene and hexafluoropropylene. FEP, which is a polymer
Alternatively, it may be a fluororesin such as EPE which is a copolymer of tetrafluoroethylene, hexafluoropropylene and perfluoroalkyl vinyl ether.

(Effect of the Invention) As described above, according to the present invention, the existing piping line has a U-shaped cross section and is covered with a transparent sheet having a fastener at its open end, so that the piping can be externally connected. It can be easily covered, and as a result, there is no risk of gas leakage in the piping line and air or rainwater from flowing into the line from the outside, and the leaked portion can be easily identified from the outside, and repairs are facilitated. As a result, it is possible to prevent air pollution and environmental damage.

In addition, maintenance inspection can be performed easily by visually observing the piping line from the outside.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a piping line according to the present invention, FIG. 2 is a schematic perspective view showing an embodiment of the present invention, and FIG.
FIG. 4 is an exploded perspective view showing the fastener in an enlarged manner, FIG. 4 is a sectional view showing a meshing state of the fastener, FIG. 5 is a schematic perspective view showing another embodiment of the present invention, and FIG. It is sectional drawing which follows the VI-VI line. 1 ... Straight pipe, 2 ... T-shaped pipe, 3 ... Elbow pipe, 4 ... L
Shaped tube, 5 …… Joint, 8,17 …… Fastener, 9,10 …… Engaging member, 9b, 10b …… Locking piece, 18 …… Arrow portion, 19 …… Holding portion, C …… Pipe body, R ...... connecting member, S ₁ ~ ₅ ...... transparent sheet.

Claims (1)

[Scope of utility model registration request] 1. An existing piping cover used for an existing above-ground piping system in which pipes made of straight pipes, T-shaped pipes, elbow pipes or L-shaped pipes are connected through a connecting member such as a joint. Which is a transparent transparent fluororesin having a U-shaped cross-section and having deformable chemical resistance, weather resistance, and heat resistance that is large enough to wrap each of the pipes or connecting members from the outside. A fastener for continuously connecting the open ends is attached to the open end side of the sheet, and both axial ends of the transparent sheet connected by the fasteners are tightened and sealed to the tube body by a tightening member. A cover for existing piping.