JP4484686B2 - Piping insulation method - Google Patents

Description

  The present invention relates to a piping system heat insulating construction method in which a heat insulating material is disposed outside a heat insulating object in a piping system to cover the heat insulating object.

The heat insulation construction method according to the present invention is mainly intended for a heat insulation object in a piping system having a complicated outer surface shape such as a valve or a pump.
Taking a valve as an example, conventionally, as shown in FIG. 8, a hollow box 20 formed of a thin metal plate is assembled to the outside of the valve 2 that is an object to be insulated, and the hollow box 20 is insulated. A construction method is actually implemented in which a foam material 21a is injected and foamed, and the valve 2 is covered with the heat insulating material 21 formed by curing the heat insulating foam material 21a.
Further, as shown in FIG. 9, a heat insulating material 21 such as glass wool or rock wool is wound around the outside of the bulb 2, and the outside is covered with a thin metal plate 22, and the ends of the metal plates 22 are bent. The construction method which coat | covers together is also implemented (Since appropriate patent literature is not found, it illustrated and showed with drawing.).

However, in the conventional construction methods shown in FIG. 8 and FIG. 9, problems remain in repairing and inspecting the valve 2 that is an object to be insulated.
That is, the valve 2 or the like, which is an object to be insulated, naturally needs maintenance work such as repair and inspection, and in the case of the construction method shown in FIG. 8, it is necessary to remove the hollow box 20, and FIG. In the case of the construction method, it is necessary to remove the metal plate 22.
However, in any construction method, it is difficult to remove the hollow box 20 or the metal plate 22, and further, there is a difficulty in removing the heat insulating material 21.
In addition, the hollow box 20, the metal plate 22, and the heat insulating material 21 once removed are difficult to reuse. Therefore, after the maintenance work is completed, it is necessary to cover the heat insulating object again by the same construction method. There is a drawback that the maintenance work becomes very complicated.

  The present invention pays attention to such conventional drawbacks, and its purpose can be reliably covered with a heat insulating material even if the heat insulating object has a complicated outer surface shape, It is an object of the present invention to provide a piping system heat insulating construction method that can easily remove and remove a heat insulating material at the time of maintenance work or can also reuse the heat insulating material.

1st characteristic structure of this invention is a piping system heat insulation construction method which arrange | positions the said heat insulation object by arrange | positioning a heat insulating material in the outer side of the heat insulation object in a piping system, Comprising: The heat insulation in the outer side of the said heat insulation object The material arrangement space is divided into a plurality of unit arrangement spaces, and a hollow frame corresponding to each unit arrangement space is formed by an outer board, an inner board, and a side board that connects the outer board and the inner board. Then, after the foam material for heat insulation was injected into each hollow frame body and foamed to form the heat insulating material, the side plate and the inner plate were removed from each hollow frame body that houses the heat insulating material . Thereafter, the heat insulating cushioning material is interposed between the side portions of the heat insulating materials adjacent to each other and the interior heat insulating material and the heat insulating object on each of the hollow frame bodies .

According to the first characteristic configuration of the present invention, the heat insulating material arrangement space outside the heat insulation object is divided into a plurality of unit arrangement spaces, and the hollow frame corresponding to each unit arrangement space is provided as an outer plate and an inner plate. And, it is formed with a side plate that connects the outer plate and the inner plate, and a foam material for heat insulation is injected into each hollow frame body and foamed to form a heat insulation material. Even if the heat insulation target object has a complicated outer surface shape, the heat insulating material of the shape suitable for the outer surface shape of the heat insulation target object can be formed without needing.
After the heat insulating material is formed in this way, the side plate is detached from each hollow frame body that houses the heat insulating material and assembled to the outside of the heat insulating object. The object to be insulated can be reliably covered.
Moreover, even Remove Sutame lining plate not only the side clad plate, since only the outer clad board is in a state of being integrated with a heat insulating material, an outer clad laminate that covers and protects the outside of the heat insulating material In addition, the heat insulating material can be easily detached and the heat insulating material can be reused including at least the outer plate.
In addition, in the heat insulating material in the interior of each hollow frame body, because the heat insulating cushioning material is interposed between the heat insulating materials adjacent to each other, the joint between the adjacent heat insulating materials is more reliably sealed, The heat insulation effect by a heat insulating material can be improved.
In addition, since a heat insulating cushioning material is interposed between the interior heat insulating material and the heat insulating object in each hollow frame body, even if the outer surface shape of the heat insulating object is complicated, The heat insulation effect can be improved by interposing the cushioning material.

According to a second characteristic configuration of the present invention, the heat insulating foam material is a two-component urethane foam stock solution, and the heat insulating cushion material is a closed-cell rubber sponge or high-density glass wool .

According to a third feature of the present invention, in the outer plate of each of the hollow frame bodies, a connecting member that can be disconnected is attached between the adjacent outer plate plates, and each hollow frame body is attached to the heat insulating object by the connecting device. It is in the place to assemble it.

According to the third characteristic configuration of the present invention, in the outer plate of each hollow frame body, a connecting member capable of releasing the connection is attached between the outer plate plates adjacent to each other, and each hollow frame body is insulated by the connecting device. Since it is assembled to an object, it is possible to more easily cover the heat insulating object with the heat insulating material, and to easily remove the heat insulating material during maintenance work.

In a fourth characteristic configuration of the present invention, the heat insulating object is a valve.

According to the fourth characteristic configuration of the present invention, since the object to be insulated is a valve, the above-described advantages of the present invention are exhibited to the maximum, and the valve having a complicated outer surface shape is covered with the heat insulating material. Construction can be performed as desired.

An embodiment of a piping system heat insulation construction method according to the present invention will be described with reference to the drawings.
This heat insulation construction method is a construction method for covering a heat insulating material on the outside of a heat insulation object in the piping system, and as shown in FIG. 1, if the heat insulation object is a valve 2 interposed in the pipe 1, As shown by phantom lines in FIG. 2, first, a heat insulating material arrangement space 3 for arranging a heat insulating material on the outside of the valve 2 is set, and the heat insulating material arrangement space 3 is further divided into a plurality of unit arrangement spaces 4, In this embodiment, the hollow frame body 5 corresponding to each unit arrangement space 4 is formed by being divided into three unit arrangement spaces 4.

As will be described in detail later, each hollow frame body 5 has an outer plate 6 that is finally left outside and a lining that is positioned on the inner side facing the outer surface of the valve 2 that is a heat insulating object. The plate 7 and a plurality of side tension plates 8 that connect the outer tension plate 6 and the inner tension plate 7 are formed, and each of the tension plates 6, 7, 8 is formed of a thin plate made of stainless steel, for example. As shown in FIG. 4A, these tension plates 6, 7, and 8 use, for example, an L-shaped angle material 9 made of a thin plate made of stainless steel, and the tension plates 6 that connect the angle material 9 to each other. , 7 and 8, and connected by pop rivets 10.
Before or after connecting the tension plates 6, 7, 8, at least one of the tension plates 6, 7, 8 is formed, for example, at least two holes 8a (see FIG. 3) in the side tension plate 8. Keep it.

In each hollow frame 5 formed in this way, as shown in FIG. 3 (A), a two-component urethane foam stock solution 11a as a foam for thermal insulation is injected from one of the holes 8a to form the hollow frame 5. The urethane foam 11 which is an example of a heat insulating material is formed by foaming inside.
Thereafter, the side plate 8 is removed from each hollow frame 5 in which the urethane foam 11 is housed , and the lining plate 7 is also removed together as shown in FIG. Removal of the lining plate 7 and the side lining plate 8 can be easily performed by cutting the pop rivet 10 with an electric tool 12 such as a sander, as shown in FIGS. Furthermore, a mold release agent can be applied in advance to the inner surface of the side plate 8 or the inner plate 7 before the urethane foam 11 is formed.

Even after the lining plate 7 and the side lining plate 8 are removed, the outer plate 6 is relatively firmly integrated by self-adhesion with the urethane foam 11, and in this state, (c) in FIG. As shown in FIG. 4 (d), a heat insulating cushioning material 13, for example, independent on the surface of the urethane foam 11 after removing the lining plate 7 and the surface of the urethane foam 11 after removing the side plate 8 A rubber sponge or high-density glass wool with a high bubble rate is attached with an adhesive or adhesive.
Finally, or before that, when the hollow frames 5 are assembled to the outside of the bulb 2, the outer plates 6 adjacent to each other are released from each other as shown in FIG. A buckle-type connector 14 that connects in a possible state is attached.

In order to assemble each hollow frame 5 in which such urethane foam 11 is installed outside the valve 2 which is a heat insulation object, as shown in FIG. 5 and FIG. 6, each unit arrangement set on the outside of the valve 2 While arranging the corresponding hollow frame bodies 5 with respect to the space 4, the adjacent hollow frame bodies 5 are sequentially connected and tightened by the buckle-type connector 14.
The heat-insulating cushion material 13 adhered to the corresponding surface of the lining plate 7 of the urethane foam 11 by tightening with the buckle-type connector 14 is interposed between the urethane foam 11 and the valve 2 and is connected to the valve 2. The heat insulating cushioning material 13 pressed against the outer surface and adhered to the corresponding surface of the side tension plate 8 is sandwiched between the urethane foams 11 adjacent to each other.

In addition, when the heat insulation object has a shape in which the outer surface is intricately complicated like the valve 2 illustrated in this embodiment, for example, the heat insulation cushioning material 13 is locally inserted in advance into a recessed portion or the like. Alternatively, each hollow frame 5 can be assembled in a wound state.
In any case, each hollow frame 5 is assembled to the valve 2 that is a heat insulation object using the buckle-type connector 14, and between the heat insulating material 15 fitted on the pipe 1 and the valve 2 as necessary. Further, a heat insulating cushioning material 16 is also interposed in the rotating operation shaft member, and the covering operation of the valve 2 with the urethane foam 11 which is a heat insulating material is completed.
And if necessary, the buckle-type connector 14 can be removed to expose the valve 2, and the urethane foam 11 can be covered again.

[Another embodiment]
(1) In the previous embodiment, an example in which the hollow frame 5 was formed of a stainless steel thin plate was shown. However, for example, various synthetic materials such as FRP and the like including a metal plate such as a galvanized iron plate and an aluminum plate. The hollow frame 5 can also be formed from a resin plate or the like.
Moreover, although the example which adhered the cushioning material 13 for heat insulation to the surface of the urethane foam 11 after removing the lining board 7 and the side board 8 with the adhesive agent etc. was shown, the urethane foam undiluted solution in the hollow frame 5 Before injecting 11a, the heat insulating cushioning material 13 is disposed in advance on the inner surfaces of the lining plate 7 and the side lining plate 8, and the heat insulating cushioning material 13 is bonded to the urethane foam 11 by self-adhesion with the urethane foam 11. It can also be integrated.

(2) In the previous embodiment, the buckle-type connector is shown as the connector 14 for assembling each hollow frame body 5 to the outside of the valve 2 that is the object to be insulated, but other than the buckle-type connector. Various conventionally known couplers can be used, and the hollow frame 5 can be assembled using a belt, a string-like body, or the like.
Moreover, although the valve 2 was shown as an example of the heat insulation target object in a piping system, for example, the piping 1 itself can also be implemented as a heat insulation target object as well as various fluid devices and instruments such as a pump.

The perspective view which shows the piping system heat insulation structure after construction by the piping system heat insulation construction method Perspective view showing the construction process of piping system insulation construction method The perspective view which shows the process of forming a heat insulating material in a hollow frame body Sectional drawing which shows the process in which a side plate is removed from a hollow frame Perspective view showing the construction process of piping system insulation construction method Sectional view showing the construction process of the piping insulation method Sectional view showing the piping insulation structure after construction by the piping insulation construction method Sectional drawing showing conventional piping system insulation construction method Sectional drawing which shows another conventional piping system heat insulation construction method

DESCRIPTION OF SYMBOLS 1 Piping 2 Valve | bulb as heat insulation object 3 Heat insulation material arrangement space 4 Unit arrangement space 5 Hollow frame body 6 Outer plate 7 Inner plate 8 Side tension plate 11 Heat insulation material 11a Foam material for heat insulation 13 Cushion material for heat insulation 14 Connection tool

Claims (4)

It is a piping system heat insulation construction method in which a heat insulating material is disposed outside a heat insulation object in a piping system to cover the heat insulation object,
A heat insulating material arrangement space outside the heat insulation object is divided into a plurality of unit arrangement spaces, and a hollow frame corresponding to each unit arrangement space is provided as an outer plate, an inner plate, and the outer plate and the inner plate. And forming the heat insulating material by injecting and foaming a heat insulating foam material into each hollow frame body, and then forming the heat insulating material from each hollow frame body having the heat insulating material therein , and After removing the lining plate , a heat insulating cushioning material is interposed between the side portions of the heat insulating materials adjacent to each other and the interior heat insulating material and the heat insulating object in each hollow frame body. Piping system insulation construction method to be assembled . 2. The piping system heat insulation construction method according to claim 1, wherein the heat insulating foam material is a two-component urethane foam stock solution, and the heat insulating cushion material is a closed cell rubber sponge or high density glass wool . The outer plate of each of the hollow frame members is attached with a connecting member capable of releasing the connection between the adjacent outer plate members, and the hollow frame member is assembled to the heat insulating object by the connecting member. piping insulation construction method of. The said heat insulation target object is a valve | bulb, The piping system heat insulation construction method in any one of Claims 1-3 .

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