KR102117230B1 - Insulator and the method of the same - Google Patents

Abstract

The present invention can be applied to various types of piping by wrinkles formed on one surface of the heat insulating layer 1, and is a technique related to heat insulation for piping that is easy to work with, and is a film-like skin material having non-permeability such as aluminum foil (3 ), an inorganic insulating material attached to one surface of the skin material 3 through a binder, and attached to one surface of the long fiber sheet 2, including an irregular fiber pattern, but surrounding the outer diameter of the pipe It comprises a heat insulating layer (1), wherein the heat insulating layer (1) is formed of a mat having a predetermined thickness combined with an adhesive resin by laminating an inorganic insulating material, one surface in contact with the outer diameter of the pipe is crimped (crimp) It includes a bone (5), and forms a corrugated floor (6) in the direction of the other surface, characterized in that the other surface is a flat shape.

Description

Insulation material and its manufacturing method {INSULATOR AND THE METHOD OF THE SAME}

The present invention is a technique for a heat insulating material for piping to increase the flexibility of the heat insulating layer to increase the efficiency of the insulation construction.

Onshore, offshore plants or large vessels have numerous compartments, and numerous pipelines are installed. Compartments or piping should be covered or wrapped with walls or pipes with insulation for finishing. Insulators can be made to keep warm and cool by blocking heat transfer. In general, inorganic insulating materials such as glass wool or mineral wool are mainly used.

As is well known, glass wool or mineral wool is formed to form a layered structure so as to have a predetermined thickness, molded into a plate-like body or a curved body, attached to the outer surface of the wall of the hull or mounted to surround the pipe.

Glass wool or mineral wool has basic strength and thermal insulation properties by having an appropriate thickness, but has properties that can be easily shrunk when an external force is applied. Therefore, glass wool or mineral wool may be laminated with high density in consideration of shape-retaining properties as an insulating material.

Insulating materials manufactured by laminating high-density insulating materials in this way have the advantage of ensuring durability, but when used in pipes with curved surfaces, they are less flexible, so they are joined by insulating the insulation layer (1) cut into pieces to form an equal insulation material. It is common to manufacture or cut the heat insulating layer 1 at regular intervals, erect it in the longitudinal fiber direction, and then use it as a lamellar heat insulating material with silver foil attached.

In the case of the equal-type insulation material or the lamella-type insulation material, there are disadvantages in that the effect of heat retention may be lower than that of the integral type insulation material because it is manufactured by connecting several pieces.

On the other hand, in the case of the integral insulation material used for piping having a bent portion, unlike the above-described halved or lamellar insulation material, the insulation layer 1 is not manufactured by cutting and combining a plurality of pieces. It is a form that wraps the pipe by cutting a part after manufacturing, but there is a problem in that the manufacturing process is cumbersome and the use is limited to some specific sizes of pipes, such as the use of a separate mold to manufacture the insulating material.

Patent Application No. 10-2008-0111174

Therefore, in order to solve the above problems, in the present invention, durability is maintained, including an insulating layer 1 formed by laminating inorganic insulating materials at high density, but due to wrinkles formed by crimping one surface of the insulating layer 1 To provide flexibility, it is easy to form a curved body, and the adhesion is increased, so it is not only excellent in thermal insulation and thermal insulation, but also can be applied to any place regardless of the shape and size of the pipe to provide an excellent insulation with excellent versatility.

According to one aspect of the present invention for achieving the task as presented to provide a heat insulating material.

The insulating material is a film-like skin material having non-permeability, such as aluminum foil (3), is attached through a binder to one surface of the skin material (3), the long fiber sheet (2), including the irregular fiber pattern, the sheet It includes a heat insulating layer (1) made of an inorganic heat insulating material attached to one surface of the fiber sheet (2) and surrounding the outer diameter of the pipe, the heat insulating layer (1) is a mat having a predetermined thickness of the inorganic heat insulating material is laminated and bonded with a binder In the form, one surface of the heat insulating material in contact with the outer diameter of the pipe is crimped to include the corrugated bone 5 and to form a corrugated floor 6 in the other direction, the other surface being flat do.

Preferably, the thickness of the heat insulating layer 1 is characterized in that it is thicker than the thickness from the corrugated bone 5 to the floor 6.

Preferably, the one surface of the wrinkles includes a cutting portion 8 with a separation distance therebetween, wherein the cutting portion 8 is a portion of the wrinkles 5 to the floor 6 is cut, and of the pipe It is characterized by being in the form of a cut in the longitudinal direction.

Preferably, the binder is characterized in that 0.8 to 2.0% by weight of the total weight of the heat insulating layer (1).

Preferably, the skin material 3 is further included between the long fiber sheet 2 and the heat insulating layer 1.

Preferably, the heat insulating layer 1 is made of at least a pair of heat insulating layers, and the pair of heat insulating layers includes a first heat insulating layer 1b and a second heat insulating layer 1c, and the first heat insulating layer 1b And the second insulating layer 1c is coupled by a binder 1d.

According to another aspect of the present invention provides a method for manufacturing an insulating material according to any one of claims 1 to 6.

The insulating layer contained in the insulating material is seated in a mold of a bent ∩-shaped piping, and bent according to the mold, while the crimped fiber tissue on the outer surface of the insulating layer that is not in contact with the mold is pulled and cracks on the outer surface of the insulating layer. A space part forming step in which a predetermined space is formed; A binder is applied to one surface of a film-like skin material having moisture permeability such as aluminum foil, and a long fiber sheet including an irregular fiber pattern is adhered to prepare an outer skin material, and then a binder is applied to one surface of the outer skin material to which the long fiber sheet is attached. Preparation of the outer covering material to be applied; After forming the space and overlapping the outer cover material coated with the binder on the curved upper surface of the insulating layer, the mold cover is covered and the insulating layer and the outer cover material are adhered to each other, but by heating and pressurizing, the binder penetrates into the cracked fiber tissue space portion of the insulating layer. step; And a curing step of curing the heat insulating material obtained by heating and pressing. It provides a method for producing a heat insulating material comprising a.

Preferably, prior to the step of forming the space, it is further characterized in that it further comprises the step of rolling one or both sides of the insulating layer on the plate in order to impart flexibility to the crimped and compressed fiber tissue when the space is formed.

The heat insulating material according to the present invention is laminated with a high density of insulating material to maintain durability, but maintains flexibility even in a state of being stacked at a high density, so that it is easy to mold according to all shapes and sizes of pipes. There is, the adhesion is improved, there is an effect excellent in heat shielding properties and thermal insulation effect.

1 is a perspective view of an insulating material according to an embodiment of the present invention.
Figure 2 (a) is a cross-sectional photo of the insulating layer before crimping.
Figure 2 (b) is a cross-sectional photo of the insulating layer formed of a wrinkled fiber tissue after crimping.
Figure 3 is an exemplary use of a heat insulating material according to an embodiment of the present invention.
Figure 4 (a) and 4 (b) is a photograph of the construction of a heat insulating material according to an embodiment of the present invention in the piping.
5 is a perspective view of a heat insulating material including a cut surface on a portion of a wrinkle according to an embodiment of the present invention.
Figure 6 is an overall picture of a double layered insulating layer according to an embodiment of the present invention.
7 is a photograph of a space formed by seating a crimped insulating layer on a mold according to an embodiment of the present invention.

Hereinafter will be described in more detail with respect to the heat insulating material of the present invention, it will be referred to the accompanying drawings. However, the proposed drawings and detailed description thereof describe one practical example according to the technical spirit of the present invention, and the technical protection scope of the present invention is not limited thereto.

Figure 1 is a perspective view of the heat insulating material of the present invention, Figure 2 (a) is a cross-sectional photo of the insulating layer before crimping, Figure 2 (b) is a cross-sectional photo of the insulating layer formed of wrinkled fiber tissue after crimping, Figure 3 is An exemplary view of the use of a heat insulating material for piping according to an embodiment of the present invention, and FIGS. 4(a) and 4(b) are pictures of constructing the heat insulating material on the pipe according to an embodiment of the present invention. 5 is a perspective view of a heat insulating material including a cut surface on a portion of a wrinkle according to an embodiment of the present invention, Figure 6 is a whole picture of a double layered heat insulating layer according to an embodiment of the present invention, Figure 7 is the present invention According to an embodiment of the present invention, a space portion is formed by seating a crimped insulating layer on a mold.

As shown, the heat insulating material according to the present invention can be easily installed with high-density laminated heat-insulating materials on various types of piping used in land, offshore plants or ships, and to maintain durability and at the same time ensure heat insulating properties. (1), consisting of a long fiber sheet (2) and a skin material (3), may be made of the following configuration.

The long fiber sheet (2) and the skin material (3) is a skin material (4) attached to the outer diameter of the heat insulating layer (1), the skin material (3) having a film shape having a moisture impermeability, such as aluminum foil It can be used, for example, an aluminum foil, an aluminum vapor-deposited film, or an aluminum foil to which a PET film is attached can be used. However, aluminum foil with aluminum foil, aluminum vapor-deposited film, and PET film attached is only one example as a skin material (3), and in addition, ethylene vinyl alcohol, polyvinyl alcohol, silicon oxide, aluminum oxide, nanoclay coating, and oil , It may be used those having a film shape containing an inorganic composite material.

 A long fiber sheet 2 may be attached to one surface of the skin material 3 using a binder. The long fiber sheet (2) means that the long fibers cut to a predetermined length are irregularly superimposed and manufactured in a sheet form to have a predetermined thickness.

Here, the long fiber sheet 2 may be manufactured using, for example, any one of a chopped strand mat, an e-glass mat, and a carbon fiber, and the material is They can form thin mats.

In particular, the chop strand mat refers to a glass fiber having an glass composition having a length of about 50 mm, which is made of a thin and flat mat, which is obtained by pinching the cut long fibers thinly and flatly in an irregular arrangement and bonding them using an adhesive. The wet strand mat has an advantage that the resin impregnation speed is fast, and it has a feature that it is easy to form a curved surface when used in a heat insulating material formed of a curved surface.

The adhesive used in the manufacture of the wet strand mat is not particularly limited, but, for example, an unsaturated polyester resin may be used.

In the embodiment of the present invention, it is assumed that the chopped strand mat is used as the long fiber sheet 2.

The long fiber sheet 2 is made by combining long fibers such as glass fibers with a predetermined length and arranging them in an irregular arrangement so as to have a predetermined thickness, and then stacking them thinly and flatly, and then combining them to produce a large number of long fibers. Voids can form.

Due to these voids, the adhesive provided during the subsequent bonding of the insulating layer and the long fiber sheet is effectively impregnated between the voids of the long fiber sheet, and is also combined with the insulating layer, so that the surface strength of the insulating material can be maximized without any additional tinting work. . Therefore, it is possible to shorten the construction process of the insulation material, and at the same time, to maintain or improve the durability, it can be easily restored even when an external impact is applied, thereby extending the life of the insulation material.

Furthermore, since the voids due to the irregular arrangement of the long fibers are formed to a predetermined thickness on the sheet, the cushioning properties are very excellent, and when such a long fiber sheet 2 is coupled to a skin material 3 such as aluminum foil, there are countless voids. Due to this, even when external vibration occurs, there is no change in the fiber structure. Therefore, it also has the advantage of improving sound absorption and sound insulation properties.

When the skin material 3 is coupled to one surface of the long fiber sheet, the skin material 3 may be further coupled to the other surface to further improve the durability of the skin material. At this time, the bonding between the long fiber sheet and the skin material is made by a binder, but is not particularly limited, for example, an unsaturated polyester resin may be used.

On the other hand, the heat insulating layer 1 is made of an inorganic heat insulating material, and the inorganic heat insulating material generally refers to glass wool or mineral wool, which is laminated in multiple layers at a high density and adhered with a molding binder to form a mat shape. .

In more detail, as shown in FIG. 1, the heat insulating layer 1 in the form of a mat having a predetermined thickness includes wrinkles formed by crimping one surface in contact with the outer diameter of the pipe.

The wrinkles are formed only on one surface of the heat insulating layer 1, as shown in Figure 2 (b), specifically to form a wrinkle 5 on one surface of the heat insulating layer 1, the floor of the wrinkle in the direction of the other surface (6 ) Is a structure in which wrinkles are formed in the thickness direction of the heat insulating layer 1. Here, one surface of the heat insulating layer (1) becomes the inner portion to be in contact with the pipe outer diameter.
In addition, the insulating layer may be formed of a plurality of layers, such as the first insulating layer 1b and the second insulating layer 1c.

For example, when the insulating layer 1 in the form of a mat is put into a rolling machine where rollers are positioned above and below, and when crimping with one surface of the insulating layer 1 placed on the lower roller, the rolling speed of the lower roller is increased. When adjusted slowly compared to the rolling speed of the roller, the degree of pushing on one side of the introduced insulating layer 1 becomes larger than the degree of pushing on the other side. At this time, wrinkles may be formed only on one surface, and the density of the miraculous insulating material may be further increased in the process of pushing the fiber tissue, thereby obtaining a high-strength insulating layer 1.

In addition, one surface of the heat insulating layer 1 includes a predetermined small groove formed by wrinkles, while the other surface is in the form of a flat mat that is not crimped.

When wrinkles are formed on one surface of the heat insulating layer 1 that is in contact with the outer diameter of the pipe as described above, even if the heat insulating material is a rigid form combined with high density, the wrinkles are freely folded and the curved body is easily formed. That is, as shown in FIGS. 4(a) and 4(b), additional processes such as cutting and pasting the insulating layer 1 as a bell may be omitted during the work of wrapping the outer diameter of various types of pipes such as a circle, and the outer peripheral surface of the pipe may be omitted. Since the insulation material can be constructed by a simple process surrounding the insulation material of the present invention, there is an advantage of increasing the efficiency of work.

That is, since the flexibility can be secured by the wrinkles formed on one surface of the heat insulating layer 1 as described above, regardless of the shape of the piping, the heat insulating layer 1 is essentially cut into species, such as a conventional halved or lamellar heat insulating material. By doing so, the operation of attaching can be omitted, and the outer diameter of the pipe can be wrapped. Therefore, unlike the conventional heat insulating material, since it is not cut, the possibility of heat dissipation between the seams is very low.

However, when customizing the insulation of the present invention to the outer diameter of the piping, it is possible to wrap the piping at once as described above, but it is inevitable when the insulation of the present invention is randomly applied to piping having various shapes and outer diameter sizes. It can be accompanied by the work of connecting the insulating material.

However, even in this case, the fiber structure of both ends of the seam is entangled by the wrinkles formed on one surface of the heat insulating layer, so that the bonding force by the binder is increased, and further, the one surface of the heat insulating layer contacting the outer diameter of the pipe also has adhesive force due to wrinkles. Improved, the possibility of heat dissipation between the seams can be significantly reduced.

In addition, a small groove formed by crimping can complement various types and sizes of protrusions that can be formed on the outer diameter of the pipe, thereby minimizing the gap that can occur between the outer diameter of the pipe and the inner diameter of the insulation material. There is also an advantage that the effect is improved.

In addition, the heat-insulating material has a high-density layered structure, and further, pressure is applied to the heat-insulating layer 1 in the process of folding the wrinkles during crimping. ), it is possible to obtain the versatility to expand the use.

For example, the heat insulating material of the present invention is easy to bend for bending forming, and thus can be easily applied to the bending type pipe, and obtains the effect of heat insulation by wrapping the outer surface of the flat type pipe in a flat pin state. You can. Therefore, it is not limited to the curved surface forming, and it is also possible to form a plate, so it is easy to apply to various pipes.

Furthermore, the entire thickness of the heat insulating layer 1 may be thicker than the thickness of wrinkles formed on one surface of the heat insulating layer 1.

More specifically, as shown in Figure 1, one surface of the heat insulating layer 1 may be formed with a corrugated bone 5, and the other surface may be formed with a corrugated floor 6, in the corrugated bone 5 It is preferable that the thickness of the corrugation to the floor 6 is crimped not thick compared to the total thickness of the heat insulating layer 1.

That is, the thickness of the entire heat insulating layer (1) is attached to the surface of the heat insulating layer (1) in order to protect the heat insulating layer (1) by external impact by the flat portion of the heat insulating layer (1) secured by excluding the thickness of the wrinkles. 4) The work of joining can be made easier, and when the insulation construction is completed, the appearance may be smooth.

On the other hand, one surface of the heat-insulating layer 1 on which the wrinkles are formed further includes a cutting portion 8 with a separation distance, and the cutting portion 8 is cut from the bone 5 of the wrinkle to a part of the floor 6 , It may be a form cut in the longitudinal direction of the pipe.

Insulating material of the present invention is easy to apply to various types of piping such as a curved body, even though it does not include a separate cutting surface, unlike the conventional insulator type or lamellar type insulating material, especially in the case of a pipe with a large degree of bending, wrinkles are more easily applied A predetermined cutting portion 8 may be additionally formed in the bone 5 of the portion, and the cutting portion 8 may have a shape in which a part of the corrugated bone 5 to the floor 6 is cut.

Therefore, the cutting part 8 is formed in a part from the corrugated bone 5 to the floor 6 as shown in FIG. 5, and a part of the thickness of the heat insulating layer 1 is cut so that the heat insulating layer 1 The other side of the surface may maintain a flat shape such as a mat, but may further include a cutting portion 8 on one side. Therefore, while maintaining the thermal insulation as it is, the flexibility is secured, especially when applied to a bent type pipe, which has the advantage of making the construction of the insulation more smooth.

However, even in this case, the application to the flat type pipe is not limited, but rather, it can be easily applied to the flat type pipe because it is easy to bloom flat by wrinkles even after forming the curve in accordance with the bending type pipe. Therefore, the heat insulating material of the present invention means that the processing process for bending and the formation of the bending are easier.

 Furthermore, the molding binder used for laminating and bonding the heat insulating material to form the heat insulating layer 1 is not particularly limited as long as it is an adhesive, an adhesive, and a resin used for manufacturing the heat insulating material, and for example, acrylic resin Can be used. However, the content of the binder for molding is preferably 0.8 to 2.0% by weight of the total weight of the heat insulating layer (1).

If the molding binder is less than 0.8% by weight from the total weight of the insulating layer (1), the effect of adhesion may be insignificant and it may be difficult to fix and stack the insulating material at a high density, and when it exceeds 2.0% by weight, the insulating layer (1) It is hard to harden, so the flexibility is poor, and it can be easily damaged from external impact, and the cutting efficiency is poor, which is not preferable.

 Therefore, when the insulating material is adhered by adding a molding binder in the above range, it is possible to secure the strength by fixing the insulating material at a high density as well as to improve the cutability of the insulating layer 1, thereby facilitating work. have.

Furthermore, the insulating layer may be formed of at least one pair of insulating layers by layering one or more insulating layers as shown in FIG. 6. More specifically, the pair of insulating layers may be formed by stacking at least two or more insulating layers, such as a first insulating layer and a second insulating layer, and two insulating layers by applying a binding binder between the first insulating layer and the second insulating layer. A layered insulating layer can be obtained.

On the other hand, in the case of piping used for ships, offshore or land plant, the shape and size of the piping used varies depending on the size of the ship or plant. For example, in the case of a large-scale plant or ship, hundreds or thousands of pipes of sizes that are easy to store and handle can be connected and fixed and installed on the wall.To connect the pipes, various tools such as holders and bolts on the outer diameter of the pipes It is common for them to be fixed together.

In the case of the pipe connected as described above, the tools are fixed to the outer diameter of the pipe to form protrusions of various shapes and sizes, and when covering the outer diameter of the pipe, one surface of the insulating material contacting the outer diameter of the pipe is caused by the tool. If a suitable groove is not formed in the protrusion, the adhesion of the heat insulating material is lowered, and the effect of heat insulating insulation is inevitably lowered.

In order to compensate for this problem, in the case of the conventional heat insulating material, a process of digging a groove suitable for the protrusion formed on the outer diameter of the pipe on one surface of the heat insulating material was performed. However, in order to secure the conventional durability, it is common to use a heat-insulating layer in a compressed state by laminating a high-density insulating material, and in this case, since the heat-insulating layer laminated with a high density has very high strength, a work process of digging grooves one by one as described above is required. Not only is it not easy, there is a disadvantage that it consumes a lot of time and manpower and degrades the work process and efficiency.

Therefore, the present invention is to form a wrinkle to soften the fiber structure of the heat insulating layer on one surface of the heat insulating layer to compensate for this disadvantage. Furthermore, it may be a configuration in which at least one or more layers of the insulating layer are added to be layered as shown in FIG. 6 so as to control the thickness of the insulating layer of the grooved portion.

That is, as shown in the photograph of FIG. 6, the first insulating layer 1b and the second insulating layer 1c may be configured, and the first insulating layer and the second insulating layer may be structures coupled by a binding binder 1d. . At this time, the bonding binder may use a common molding binder used for the heat insulating material, and may apply one or more layers to improve the bonding strength between the heat insulating layers. At this time, the binder for bonding may further use a long binder or the like having excellent bonding properties with a liquid binder to enhance durability.

On the other hand, the present invention provides the above-described method for manufacturing an insulating material. In particular, the method for manufacturing an insulating material of the present invention relates to a method for manufacturing an insulating material for application to pipes of various shapes and sizes.

In detail, the heat insulating material for applying to the conventional piping, unlike the heat insulating material of the present invention described above, simply includes a heat-insulating layer compressed by simply laminating a long fiber structure as shown in FIG. 2(a). Therefore, since it is difficult to form a bend, a method of attaching a halved insulation material or wrapping a pipe with a lamellar insulation material was used. At this time, in the case of a halved type insulation, a gap may inevitably occur in the joined portion or in the case of a lamella type insulating material, resulting in heat loss between the gaps, so the effect of heat insulation is deteriorated.

However, the heat insulating material of the present invention is easy to bend for forming a curved surface by wrinkles of the crimped fiber tissue even if there is no gap between the heat insulating materials or the inner surface, such as a conventional equal or lamellar heat insulating material. For example, by using the heat insulating material of the present invention, there is an advantage that it can be easily applied to a plate-like pipe as well as a pipe having a large degree of bending, such as a small-diameter pipe, without a separate molding operation.

To this end, a method of manufacturing a heat insulating material for a pipe formed by bending of the heat insulating material of the present invention will be described.

The method of manufacturing the heat insulating material of the present invention is manufactured by including the step of forming a gap on the outer surface of the heat insulating layer by bending the heat insulating layer described above, the preparation of the outer material, the adhesion step, and the curing step.

In more detail, the present invention can apply the insulating layer to the mold of the bent pin-shaped pipe in order to apply insulation to a pipe having a large degree of bending, such as a small-diameter pipe, to perform a bending operation according to the bending of the mold.

At this time, one surface of the above-described insulation layer is in contact with the mold, and the other surface is a surface that is not in contact with the mold, and the other surface is an outer surface of the insulation layer. The outer surface of the heat insulating layer is crimped, so that it is preferable to arrange the surface including the corrugated bone to form a curved surface to fit the bending of the mold.

That is, the crimped fiber structure of the outer surface of the heat insulating layer is easily cracked by the bending operation, and a gap caused by the crack as shown in FIG. 7, that is, a predetermined space portion such as the mark in FIG. 7 can be formed.

As in the present invention, when the inside of the heat insulating layer is crimped and formed into a wrinkled mat, the bending of the heat insulating layer in the mat state is very flexible due to wrinkles, so even when applied to a small diameter pipe having a very high degree of bending, curved surface is easy to form. Did.

Therefore, it is possible to reduce the hassle of dividing the insulation into several pieces according to the size of the piping as in the prior art, and can solve a problem inevitably applied to the piping while a part of the insulating layer is cut like a lamellar type insulating material. That is, there is an advantage of maximizing the efficiency of thermal insulation by minimizing heat loss to the joint or cut.

Meanwhile, in order to manufacture an insulating material by adhering the outer material to the outer surface of the insulating layer, the outer material may be manufactured. The outer skin material is a combination of the above-described skin material and the long fiber sheet, the skin material may use a film shape having non-permeable properties such as aluminum foil, and the long fiber sheet is in the form of a mat compressed by irregularly stacking long fibers. You can use

A binder may be applied to one surface of the skin material and adhered to the long fiber sheet to manufacture an outer skin material. At this time, the binder easily penetrates between patterns of irregular long fiber structures of the long fiber sheet, and thus the binding force between the skin material and the long fiber sheet Can be maximized.

After applying a binder to one surface of the prepared outer skin material, the outer skin material and the heat insulating layer may be adhered. In detail, the outer covering material is seated on the outer surface of the thermal insulation layer, and after the mold cover is covered thereon, a predetermined pressure and temperature may be applied to bond the outer covering material and the thermal insulation layer.

At this time, the binder applied to one surface of the outer covering material can easily penetrate into the inner insulating layer due to the space formed on the outer surface of the insulating layer, and the bonding of the insulating layer and the outer covering material can be made more robust by heating and pressing.

Then, by heating or curing at a predetermined temperature and applying heat, a heat insulating material according to the present invention can be obtained. The temperature of the heating, pressurization, and hot air is a temperature that can be generally applied to manufacture a heat insulating material, and can be appropriately adjusted according to the temperature at which the binder used for the heat insulating material is cured.

On the other hand, prior to the step of forming the space portion on the outer surface of the crimped heat insulating layer, it is possible to further proceed to the rolling step by pressing one or both sides of the heat insulating layer. This is to further improve the flexibility of the crimped insulating layer, and when a predetermined pressure is applied to roll one or both sides of the insulating layer, the alignment of the insulating material having wrinkles in the compressed state is dispersed and the layer of the laminated insulating material is layered. A fine space can be formed in the gap between.

Therefore, prior to forming the space portion on the outer surface of the heat insulating layer, when rolling the heat insulating layer, a space is formed between the layers of the fiber tissue, so that the heat insulating layer compressed in a mat shape has a more flexible effect. Therefore, it is not only easier to fit the heat insulating layer to the mold, but also when the heat insulating layer and the outer shell material are subsequently combined, the binder that has penetrated into the spaces of the heat insulating layer can penetrate deeply between the distributed alignment of the fibrous tissue. There is an advantage that can form a strong bond, thereby enhancing the durability of the heat insulating material.

In the case of using a conventional sequential insulation material, it is very cumbersome to attach and wrap each of the segmented thermal insulation materials along the outer circumferential surface of the pipe with a high degree of bending along the outer circumferential surface of the pipe. Heat loss may occur. Furthermore, when applying a lamellar insulating material to a pipe having a large degree of bending, there is a problem in that heat loss occurring between the cut portions can be avoided.

Therefore, the present invention is to be able to more closely reproduce the bent portion of the mold due to the space formed on the outer surface of the compressed insulating layer during bending forming to fit the bent portion of the pipe mold by the wrinkles included in the insulating layer.

Therefore, even when it is used for a pipe with a large degree of bending, the effect of thermal insulation due to heat loss does not deteriorate, but rather the pipe can be reproduced very finely, so that even when surrounding the outer circumferential surface of the pipe, a gap can be prevented. There is an advantage that can maximize the effect of thermal insulation.

Furthermore, it can be applied not only to a bent pipe, but also to a plate-shaped pipe, which has the advantage of being applicable to pipes of various shapes and sizes.

As described above, the heat insulating material according to the present invention is durable including a heat insulating layer 1 in which heat insulating materials are stacked at a high density, and even when compressed in high density, wrinkles are formed by crimping on one surface of the heat insulating layer 1, so that bending is very high. It has flexible characteristics. Therefore, the process of constructing a heat-insulating material that is in close contact with the pipe of the curved body when manufacturing the heat insulating material for the piping using the heat insulating material of the present invention is easy and simple, thereby improving work efficiency.

In addition, it not only lowers the possibility of heat loss occurring between the joints or cuts included in the configuration of the conventional insulation, but also wraps the outer circumferential surface of the pipe closely, so it is possible to insulate the insulation better than the conventional insulation and to save energy. Furthermore, there is an advantage in that a smooth appearance can be formed after the construction of the heat insulating material is completed.

The insulating material for piping according to the present invention can be easily used to insulate and insulate piping such as ships and plants.

1: insulation layer
1b: first insulating layer
1c: second insulating layer
2: Long fiber sheet
3: Skin material
4: Outer material
5: wrinkles
6: flooring of wrinkles
7: wrinkles
8: cutting section
9: piping

Claims (8)

Film-like skin material (3) having moisture permeability, such as aluminum foil;
A long fiber sheet (2) attached to one surface of the skin material (3) through a binder and including an irregular fiber pattern;
It is attached to one side of the long fiber sheet (2) and includes an insulating layer (1) made of an inorganic insulating material surrounding the outer diameter of the pipe, the insulating layer (1) is a layered first insulating layer (1b) and second insulating layer (1c) )
Each of the first insulating layer 1b and the second insulating layer 1c is in the form of a mat having a predetermined thickness combined with a molding binder by stacking inorganic insulating materials, and is crimped to a predetermined depth from one side of the inner surface to be wrinkled. To form a bone (5) and a floor (6) constituting the, the other surface is to be a flat shape, the molding binder is 0.8 to 2.0% by weight of the total weight of the first insulating layer (1b) and the second insulating layer (1c) To be used,
The first insulating layer (1b) and the second insulating layer (1c) is a heat insulating material characterized in that the bonding binder (1d) or bonding binder is bonded by long fibers coated.
delete delete delete According to claim 1,
Insulation material characterized in that the skin material (3) is further included between the long fiber sheet (2) and the heat insulating layer (1). delete delete delete

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