JP2006132907A - Heat retaining and insulating material for duct, its manufacturing method, heat retaining and insulating structure of duct using the heat retaining and insulating material for duct, and its construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat retaining and insulating material for a duct, its manufacturing method, a heat retaining and insulating structure of the duct using the heat retaining and insulating material for the duct, and its construction method facilitating duct covering work of the heat retaining and insulating material for the duct without needing skill. <P>SOLUTION: The heat retaining and insulating material 1 for the duct is formed of a laminated material of a flexible mat-like heat insulating material 2 and a sheet-like surface covering 3. The end part of one side of the sheet-like surface covering material 3 is extended from the end part of the flexible mat-like heat insulating material 2 to form an extended piece part 3a, and a double coated tape is stuck to the extended piece part 3a. The heat retaining and insulating structure of the duct using the heat retaining and insulating material for the duct is formed by covering the duct with the extended piece part 3a of the first heat retaining and insulating material 1 for the duct so as to be perpendicular to the longitudinal direction of the duct, and bonding the adhesive surface of the double coated tape 4 of the second heat retaining and insulating material for the duct to the surface of the sheet-like surface covering material 3 at the opposite side end part from the double coated tape sticking part side of the first heat retaining and insulating material 1 directly below. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a heat insulating heat insulating material for a duct composed of a laminate of a flexible mat-shaped heat insulating material and a sheet-like cover material, a method for manufacturing the same, a heat insulating heat insulating structure for a duct using the heat insulating heat insulating material for the duct, and It relates to the construction method.

  2. Description of the Related Art Conventionally, in order to keep a duct warm, a heat insulating material made of a laminate of a flexible mat-like heat insulating material and a sheet-like cover material is coated on the outer periphery of the duct. For example, in the case of covering a duct with a heat insulating material in a high-rise building, the heat insulating material is first covered with a long laminate made of a flexible mat-shaped heat insulating material and a sheet-like cover material. The heat insulating material is transported to the site by a truck or the like in the form of a roll, and then the rolled heat insulating material is lifted by an elevator or the like to the vicinity of a predetermined duct for covering work. Then, after covering the work, the heat insulating material is cut into the required shape on the spot, and then the cut heat insulating material is placed on the working aerial work vehicle and moved, and the heat insulating material is mounted on a predetermined duct. And the method of winding and fixing an adhesive tape etc. is taken.

In the above method of covering the duct with the heat insulating material, the operator must measure the size of the duct at the site and cut the long roll wound heat insulating material into the required shape accordingly. There is a problem that the work in is complicated and the work efficiency is not good.
In addition, a large amount of scraps and residue are generated during the heat insulation material cutting operation, and this must be treated as waste, and the scraps and residue are scattered at the work site, and the working environment tends to be messy. There was a problem.

Furthermore, in the heat insulating material covering the duct, since the flexible mat-like heat insulating material constituting the heat insulating material is composed of inorganic fibers such as glass wool and rock wool, the thickness is as large as 25 to 50 mm. The heat insulation material is lightweight, but it is very bulky, and the cost is increased, such as increasing the number of times the necessary amount of heat insulation material is transported from the factory to the site by a transport vehicle and increasing the number of times of lifting by an elevator etc. There is also a problem that the workability is inefficient.
In addition, even at the site, the work is not always started immediately after the heat insulating material is transported, and it often has to be stored at the site until the time of work, and it has been difficult to secure a storage location.

Of the above problems, as a means for solving the complexity of work at the construction site, JP 08-327130 A discloses a heat-insulating mat that conceals piping, and the construction work for an arbitrary length of piping is performed on site. A heat insulating device that can be simplified is disclosed.
That is, the heat insulating device is a heat insulating device formed of a belt-shaped heat insulating mat that is spirally wound around the outer surface of a relatively long duct, and the heat insulating mat includes a belt-shaped outer skin made of metal foil, and the outer skin. And a plurality of strips made of a fiber assembly that are continuously pasted in the diagonal width direction, and each of the plurality of strips has a fiber orientation in a thickness direction substantially corresponding to the axial plane of the duct. Consists of.
JP 08-327130 A

Further, as a method for solving the problem of transportation and storage location, there is one disclosed in Japanese Patent Application Laid-Open No. 09-66978.
In the above publication, there is provided an unpacking method that can keep the remaining inorganic fiber heat-insulating and sound-absorbing material in a compact and easy-to-carry shape even after the necessary number of sheets are taken out from the plurality of compressed inorganic fiber sound-absorbing and sound-absorbing materials. That is, a predetermined number of mat-like inorganic fiber heat-absorbing and sound-absorbing materials are laminated, compressed in the laminating direction, covered with an outer bag, and sealed. In the bag-like product having a size and shape into which the compressed package can be inserted and having an opening that can be opened and closed along the length direction, the lamination direction of the inorganic fiber heat-absorbing sound-absorbing material is the same as that of the bag-like product. Insulating the inorganic fiber heat-absorbing sound-absorbing material by cutting the surface of the outer bag toward the opening side of the bag-like material in a state where the opening of the bag-like material is opened so as to extend the opening. Is expanded to the full volume of the bag-like material, the necessary number of the inorganic fiber heat-absorbing sound absorbing material is taken out, the opening of the bag-like material is closed, and the remaining portion of the inorganic fiber heat-absorbing sound absorbing material is covered with the bag-like material. This is a method for unpacking a compressed package.
JP 09-66978 A

However, since the heat insulating device disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 08-327130 is composed of a roll-wrapped heat-insulating mat, during the covering operation, the roll-wrapped heat-insulated mat is rotated while rotating around the duct. Since the strips made of fiber aggregates that make up the heat insulation mat are thick, the heat insulation mat in the rolled state inevitably becomes large, and the heat insulation mat with a large roll is placed around the duct. It is extremely difficult to wind while rotating.
In general, ducts are often located at high places and work in unstable places, and it is not easy to spiral large rolls of heat-insulating mats around the duct, requiring multiple skilled workers. Become.
In addition, since the outer skin constituting the heat insulating mat is bonded with tape from the outside, it must be bonded in a spiral like the heat insulating mat. It is difficult to wrap the tape at the joint of the outer skin, which requires a plurality of skilled workers, which takes time and effort.

Moreover, in the unpacking method of the compression package body which coat | covers the remainder of the inorganic fiber heat insulation sound-absorbing material disclosed by Unexamined-Japanese-Patent No. 09-66978 with the said bag-shaped object, it is the magnitude | size which an inorganic fiber heat insulation sound-absorbing material is easy to construct. For example, it is formed in a mat shape having a thickness of 20 to 120 mm, a width of 250 to 500 mm, and a length of about 1200 to 2800 mm.
If an inorganic fiber heat-absorbing and sound-absorbing material with a length of 2800 mm is used, a plurality of inorganic fiber heat-absorbing and sound-absorbing materials are required when constructing a duct of 2800 mm or more, and the joint portion is made of other band-like material (tape Etc.).
However, ducts are often located in high places, and work in unstable places. Especially in the case of a cylindrical duct, the covering part is a curved surface and two inorganic fiber heat-absorbing sound absorbing materials of 1 m or more are arranged. Then, it is extremely difficult to fix the joint by wrapping with tape, and there is a problem that the work requires skill, and it takes time even for work by a plurality of workers.
Further, there is a problem that the heat retention effect is lowered when the seam is not sufficiently fixed.

The present invention solves the above-described problems, and the following ducts that are easy to cover the duct of the heat insulation and heat insulating material, can be reliably constructed, and have excellent workability that does not require skill in the work. The present invention provides a heat insulating and heat insulating structure for a duct, a method for manufacturing the same, a heat insulating structure for a duct using the heat insulating heat insulating material for the duct, and a construction method therefor.
[1] In the heat insulating heat insulating material 1 for a duct made of a laminate of the flexible mat-shaped heat insulating material 2 and the sheet-like surface covering material 3, which is used by covering the duct,
One side of the sheet-like cover material 3 is formed longer than one side of the flexible mat-like heat insulating material 2, and an end of one side of the sheet-like cover material 3 extends from an end of the flexible mat-like heat insulating material 2. An insulated heat insulating material for ducts, characterized in that it is formed by forming an extended piece portion 3a and attaching a double-sided tape 4 to the extended piece portion 3a.
[2] The insulating heat insulating material for ducts according to [1], wherein the sheet-like covering material 3 is aluminum foil or aluminum foil vapor-deposited cloth, and the flexible mat-like heat insulating material 2 is an inorganic fiber mat. .
[3] The heat insulation for duct according to any one of [1] or [2], wherein the heat insulation 1 for duct is formed in advance in a shape used for a duct covering operation. Wood.
[4] A method of manufacturing a heat insulating material for ducts,
(1) Adhering one surface of the long flexible mat-shaped heat insulating material to one surface of the long sheet-like cover material so as to leave the end of one side of the long side, A first step of manufacturing a long duct insulation heat insulating material by sticking a long double-sided tape to the edge of one side;
(2) a second step of cutting the heat insulation material for long ducts manufactured in the first step into a shape used for a duct covering operation;
A method of manufacturing a heat insulating material for ducts, characterized in that is performed.
[5] In the heat insulating insulation structure for a duct, in which the heat insulating heat insulating material for duct 1 made of a laminate of the flexible mat-like heat insulating material 2 and the sheet-like cover material 3 is covered with the duct,
The insulating heat insulating material for duct 1 is formed such that one side of the sheet-like cover material 3 is longer than one side of the flexible mat-like heat insulating material 2, and an end of one side of the sheet-like cover material 3 is the flexible Extending from the end of the insulating mat-like heat insulating material 2 to form an extended piece 3a, and a double-sided tape 4 is adhered to the extended piece 3a,
The first piece of the heat insulating heat insulating material for the duct has an extended piece portion 3a formed at the end portion of one side where the double-faced tape 4 of the sheet-like cover material 3 is attached to the longitudinal direction of the duct. It is covered with a duct so as to be vertical, and the second sheet of the heat insulating insulation for duct is connected to the duct in the same manner adjacent to the first heat insulating insulation for duct 1a in series. The adhesive surface of the double-sided tape 4 of the second insulation heat insulating material 1b for the duct is coated from the double-sided tape adhering portion side 10a of the first insulation heat insulating material 1a for the duct immediately below it. It is formed by adhering to the surface of the sheet-like cover material 3 at the opposite end 10b, and the third and subsequent heat insulation materials for ducts are sequentially connected to the duct and covered in the same manner. Heat insulation structure for ducts.
[6] A construction method for completing the heat insulation and heat insulation structure for a duct according to claim 1 or 2, wherein (1) the first heat insulation for a duct 1a is placed inside, and the flexible mat-like heat insulation 2a is placed inside. Then, the extending piece portion 3a to which the double-sided tape 4 formed to extend to one end portion of the sheet-like cover material 3 is attached is perpendicular to the longitudinal direction of the duct. A first step of placing the duct at a predetermined position;
(2) the second step of covering the duct with the first heat insulation material for duct 1a arranged in the first step being wound around the duct, and the front and rear ends overlapped with tape 6 or the like. ,
(3) At the end 10b opposite to the double-sided tape adhering portion side 10a of the flexible mat-like heat insulating material 2a of the first heat insulating material for duct 1a coated on the duct in the second step, the second sheet The end of the flexible mat-like heat insulating material 2b on the double-sided tape adhering portion side 10a of the duct heat insulating heat insulating material 1b is brought into contact with the first sheet of the heat insulating heat insulating material 1a for the second sheet in series. The insulation heat insulating material 1b for the eye duct is wound around the duct, and the adhesive surface of the double-sided tape 4 surface of the second insulation heat insulating material 1b for the second sheet is attached to the insulation heat insulation material for the first duct immediately below it. A third step of adhering and connecting to the surface of the sheet-like cover material 3 of the end portion 10b opposite to the double-sided tape adhering portion side 10a of the material 1a;
(4) A fourth step of covering the duct by fastening the front and rear ends of the second sheet heat insulating material 1b wound in the third step with tape 6 or the like,
(5) The third and fourth steps are repeated, and the third sheet heat insulation material for the duct 1c, the fourth heat insulation material for the duct, etc. are sequentially connected to the duct and covered. 5th process ...
A method for constructing a heat insulating structure for a duct, characterized in that is adopted.

In the present invention, one side of the sheet-like cover material is formed to be longer than one side of the flexible mat-like heat insulating material, and the end of one side of the sheet-like cover material extends from the end of the flexible mat-like heat insulating material. A heat insulating heat insulating material for a duct formed by attaching a double-sided tape to the extending piece, and a heat insulating structure for a duct using the heat insulating heat insulating material for the duct. In the connection of the two sheets of heat insulation for the duct, the adhesive surface of the double-sided tape for the second sheet of heat insulation for the duct is affixed with the double-sided adhesive tape for the first sheet of heat insulation for the duct located immediately below it. Since it can connect only by adhering to the surface of the sheet-like surface material of the other side of a landing part side, the covering operation | work to a duct is very simple, and even if it is not a skilled worker, it can work easily.
In addition, the heat insulation structure of the duct according to the present invention only adheres the adhesive surface of the double-sided tape surface to the end of another heat insulation material for ducts located immediately below it, so it is necessary to use a strip-like material such as tape. Without touching the flexible mat-like heat insulating part of the heat insulating heat insulating material for adjacent ducts, and can be connected while making fine adjustments. Can be coated without any.
Therefore, skill is not required for the covering operation on the duct, and even a small number of workers can perform the covering operation of the heat insulation material for the duct with a short work period and high work efficiency.

Since the heat insulating heat insulating material for ducts in the present invention can be configured in a shape that is used in advance for duct covering work, work such as cutting at the work site is unnecessary, and no scraps or residue are generated, reducing waste. It is possible to prevent the work site from becoming messy.
Moreover, since it can manufacture according to the shape of a duct, the duct used as construction object, such as a cylindrical duct and a square duct, is not limited.

In addition, if a large number of duct heat insulation materials used in the heat insulation structure for ducts of the present invention are compressed and accommodated and packed in a bag-like body, a large amount can be transported at one time, from the factory to the site. The number of transportation can be reduced.
And since the number of times of lifting by on-site transportation, such as elevators, can be reduced in the same way, it can be efficiently transported at low cost and occupies the elevators and stairs etc., causing trouble to other workers, etc. It can be carried into the work site without any problems.
Furthermore, it is easy to secure a storage location even when work cannot be performed immediately after loading.

The insulation heat insulating material for ducts of the present invention comprises a laminate of a flexible mat-like heat insulating material and a sheet-like cover material, and one side of the sheet-like cover material is formed longer than one side of the flexible mat-like heat insulating material, The edge part of one side of a sheet-like surface covering material extends from the edge part of the said flexible mat-like heat insulating material, and is comprised by forming the extended piece part.
And the said heat insulation heat insulating material for ducts is comprised by sticking a double-sided tape to the extension piece part formed in the edge part of the one side of a sheet-like surface material. This is because, when the duct is covered, when connecting with the other insulating heat insulating material for the duct, the other heat insulating insulating material for the duct is attached to the opposite end of the double-sided tape adhering side. Therefore, when connecting a plurality of heat insulation materials for ducts, it is possible to work without using a strip-like material such as tape.
In addition, because it is only attached with double-sided tape, the flexible mat-like heat insulating material part of the heat insulating heat insulating material for the adjacent duct can be brought into contact, and it can be attached while making fine adjustments. It can be configured.

  In addition, as said sheet-like surface material, aluminum foil, aluminum foil vapor deposition cloth, glass cloth, etc. are mentioned. Examples of the flexible mat-like heat insulating material include mat-like glass wool, rock wool, and ceramic wool.

Moreover, the heat insulation heat insulating material for ducts of the present invention is manufactured according to the shape of the duct to be covered.
Since the shape of the duct to be covered, such as length and diameter, is determined in advance, calculate what type of heat insulation for the duct is required at the stage of manufacturing the heat insulation for the duct at the factory. can do. Therefore, a heat insulating material for duct is manufactured in the calculated shape at the manufacturing stage at the factory.
In the factory, by forming the heat insulation for ducts in the shape used for the duct covering work in advance, cutting work of the heat insulation for ducts on the site becomes unnecessary, and no cuts or remainders occur, In addition, the working time can be greatly shortened.

  In addition, as described above, since the insulation heat insulating material for ducts is manufactured according to the shape of the duct to be covered, a large number of sheets are stacked, compressed, accommodated and packed in a bag-like body, and a large number of sheets Can be formed, the number of times of transportation and lifting can be reduced, and a storage place when not in operation can be easily secured.

Further, the heat insulation and heat insulation structure of the duct of the present invention is a laminate of the flexible mat-like heat insulating material and the sheet-like cover material, and one side of the sheet-like cover material is formed longer than one side of the flexible mat-like heat insulating material. And a duct is covered with a heat insulating heat insulating material for a duct configured such that an end portion of one side of the sheet-like covering material extends from an end portion of the flexible mat-shaped heat insulating material to form an extended piece portion. The double-sided tape is stuck on the extended piece part.
And the heat insulation heat insulation structure of the duct of this invention is the 1st sheet of the heat insulation heat insulating material for ducts, and the extended piece part by which the double-sided tape of the sheet-like surface material was affixed with respect to the longitudinal direction of a duct The duct is covered so as to be vertical, and the second sheet of the heat insulating insulation for duct is adjacent to the first sheet of insulating heat insulating material for the duct in series and the same as the first sheet. The first sheet and the second sheet are connected to the adhesive sheet of the double-sided tape surface of the second sheet heat insulation material, and the first sheet heat insulation material for the duct is located immediately below it. It is constructed by adhering to the surface of the sheet-like cover material at the end opposite to the double-sided tape adhering part side, and the third and subsequent ducts are also sequentially connected to the duct in the same manner. It covers and constitutes a heat insulating structure.

Next, the present invention will be described with reference to the drawings.
1A is a perspective view of a heat insulating material for a duct according to the present invention, FIG. 1B is a sectional view of the heat insulating material for a duct according to the present invention, and FIG. 2 is a method for producing the heat insulating material for a duct according to the present invention. FIG. 3 is a process diagram of the method for manufacturing a heat insulating material for a duct of the present invention, FIG. 4A is a perspective view of the heat insulating structure for a duct of the present invention, and FIG. FIG. 5C is a cross-sectional view of the heat insulation structure of the duct, FIG. 5C is a detailed cross-sectional view of the connecting portion of the heat insulation material for the duct of the heat insulation structure of the duct of the present invention, and FIGS. It is explanatory drawing of the construction method of the heat insulation heat insulation structure of a duct.
In the figure, 1 is a heat insulation for a duct, 1a is a heat insulation for a first duct, 1b is a heat insulation for a second duct, 1c is a heat insulation for a third duct, 1 'is a heat insulating heat insulating material for a long duct, 2 is a flexible mat-like heat insulating material, 2a is a heat insulating heat insulating material for a first duct, and 2b is a heat insulating heat insulating material for a second sheet Flexible mat-like heat insulating material for heat insulating heat insulating material, 3 is a sheet-like cover material, 3a is an extended piece formed at one end of the sheet-like cover material, 4 is a double-sided tape, 5 is a duct, 6 Is a pressure roller, 7 is a cutting tool, 10a is a double-sided tape affixing part side of the heat insulation for ducts, and 10b is an end opposite to the double-sided tape affixing part side of the heat insulation for ducts.

  The insulating heat insulating material 1 for ducts of the present invention is a flexible mat used by covering a duct as shown in the perspective view (a) and the sectional view (b) of the insulating heat insulating material for ducts of the present invention in FIG. The sheet-shaped cover material 3 is a laminate of the sheet-shaped cover material 3, one side of the sheet-shaped cover material 3 is formed longer than one side of the flexible mat-shaped heat insulating material 2, An end portion of one side extends from the end portion of the flexible mat-like heat insulating material 2 to form an extended piece portion 3a, and a double-sided tape 4 is attached to the extended piece portion 3a. Configured.

One example of the insulation material for ducts 1 of the present invention is the flexibility of one surface of the sheet-like cover material 3 as shown in the explanatory diagram of the method for producing the insulation material for ducts of the present invention shown in FIG. An adhesive such as a spray paste is sprayed between one surface of the mat-like heat insulating material 2 and, at the same time, a double-sided tape is applied to the extended piece portion 3a formed at one end of the sheet-like cover material 3. It is manufactured by adhering and fixing and applying pressure with the pressure roller 7 or the like.
The extension piece 3a formed at the end of one side of the sheet-like cover material 3 to which the double-sided tape 4 of the heat insulation material for duct 1 is attached is another adjacent one when the duct is covered. When connecting to the heat insulating insulation for ducts, it becomes a part that covers the end of the other heat insulating heat insulating material for ducts, and the other heat insulating heat insulating material for ducts that are adjacent to each other via the double-sided tape 4 attached It will be the place to be bonded and fixed. Therefore, the extended piece part 3a is formed with a width that allows the double-sided tape 4 to be adhered to the adjacent other heat insulating thermal insulation material for ducts to be securely fixed. In the case of a generally used duct, the extending piece 3a is formed with a thickness of about 40 mm to 50 mm. However, it is preferable to consider the size depending on the diameter of the duct. It is preferable to increase the size of the piece 3a because it can be reliably bonded.

Moreover, the heat insulation 1 for ducts of this invention is previously formed in the shape used for the covering operation | work of a duct.
If the duct actually used in the field is a cylindrical duct, the standard of the cylinder used is in steps of 25 mm, so if you know in advance which diameter of the cylindrical duct is used The width of the insulating heat insulating material for duct 1 necessary for covering the duct can be calculated.
Moreover, since the length of the duct arrange | positioned in a building can also be calculated from a construction drawing etc., the number of the heat insulation materials 1 for ducts is manufactured according to the calculated length.
Of course, by calculating the outer circumference of the rectangular duct in the same manner, the width and number of the heat insulating materials for duct 1 required for covering can be calculated.
The heat insulating heat insulating material 1 for ducts of the present invention is formed in accordance with the size of the duct to be used at the stage of being manufactured at the factory, eliminating the need for on-site cutting work and greatly shortening the work time. It is possible.

And the heat insulation 1 for ducts of this invention is manufactured in the following processes, as shown in the process drawing of the manufacturing method of the heat insulation for ducts of this invention of FIG.
1st process: Leave the part which forms the extension piece part 3a in the edge part of the one side of the long side on one surface of the elongate sheet-like surface covering material 3 (refer FIG. 1, 2), One side of the long flexible mat-like heat insulating material 2 is bonded, and a long double-sided tape 4 is attached to the extended piece 3a formed at one end of the sheet-like cover material 3. In this way, a heat insulating material 1 'for a long duct is manufactured.
2nd process: The long heat insulation 1 'for ducts manufactured at the 1st process is cut | disconnected with the cutting tool 8 in the shape used for the covering operation | work of a duct.
As described above, the heat insulating material for duct 1 is manufactured by the process.

  4 (a) is a perspective view of the heat insulation structure of the duct according to the present invention, FIG. 4 (b) is a cross-sectional view of the heat insulation structure of the duct according to the present invention, and FIG. ) For a duct made of a laminate of a flexible mat-like heat insulating material 2 and a sheet-like surface covering material 3 as shown in the detailed sectional view of the connecting portion of the heat insulating heat insulating material for the duct of the heat insulating and heat insulating structure of the duct of the present invention. The heat insulating heat insulating material 1 is covered with the duct 5, and the first sheet (1 a) of the heat insulating heat insulating material for duct extends the extending piece portion 3 a of the sheet-like cover material 3 in the longitudinal direction of the duct. The second sheet (1b) of the duct heat insulation material is covered with the duct 5 so as to be perpendicular to the first sheet, and the second sheet (1b) of the duct heat insulation material is adjacent to the first duct heat insulation material 1a in the same state in series. Are connected to the duct 5 and covered, and the connection is made between the two insulation heat insulating materials 1b for the second duct. The adhesive surface of the surface of the tape 4 is adhered to the surface of the sheet-like cover material 3 at the end portion 10b opposite to the double-sided tape adhering portion side 10a of the first insulating heat insulating material 1a for the duct immediately below it. In the same manner, the third and subsequent heat insulation materials 1c for the duct are sequentially connected to the duct 5 and covered.

As shown in the explanatory diagram of the construction method of the heat insulation structure of the duct of the present invention in FIGS.
1st process: The heat insulation heat insulating material 1a for the 1st sheet | seat is made into the flexible mat-like heat insulating material 2 inside, and the extension piece part 3a of the sheet-like surface covering material 3 is perpendicular | vertical with respect to a duct longitudinal direction. And arranged at a predetermined position of the duct 5.
2nd process: The 1st sheet heat insulation material 1a for ducts arrange | positioned at the 1st process is wound around the duct 5, the wound edge part is stopped with the tape 6, and the duct 5 is coat | covered.
Third step: Both surfaces of the second heat insulating insulation 1b for the duct on the ends of the flexible mat-like heat insulating material 2a of the first heat insulating heat for duct 1a covered with the duct 5 in the second step. The end of the flexible mat-like heat insulating material 2b on the tape adhering portion side 10a is brought into contact with the second heat insulating material 1b for the duct in series with the first heat insulating heat material 1a for the duct. Connect and wind around the duct 5.
In addition, the said connection is the double-sided tape sticking part side of the 1st sheet | seat heat insulation material 1a for ducts located in the adhesive surface of the double-sided tape 4 surface of the 2nd sheet | seat insulation material 1b for ducts in the 1st sheet | seat. It adheres to the sheet-like surface covering material 3 surface of the edge part 10b on the opposite side to 10a.
Fourth step: The end of the second heat insulation material for duct 1b wound in the third step is wound with tape 6 to cover the duct 5.
5th process: The 3rd process and the 4th process are repeated, the 3rd sheet | seat heat insulation material 1c for ducts is similarly connected to the duct 5, and is coat | covered.
By repeating the above steps and sequentially connecting them, the heat insulating structure for ducts of the present invention is constructed.

  In addition, since the heat insulation structure for ducts of the present invention uses the heat insulation material for ducts 1 formed according to the size of the duct to be used at the stage of manufacturing in advance in the factory, cutting work at the coating site is unnecessary. Thus, the working time can be greatly shortened.

Moreover, the heat insulation 1 for ducts used in the heat insulation structure for ducts of the present invention is formed in accordance with the size of the duct 5 used as described above, and is not configured by roll winding. Therefore, many sheets can be stacked and compressed (2-5 folds depending on the shape and compressed), packed and packed in a bag-like body, and preferably air is discharged and vacuumed It can compress and can form many package bodies.
That is, since it is compressed and contained and packed in a bag-like body, its thickness can be reduced, and the occupied volume can be reduced for transportation and lifting, and it can be transported and transported in large quantities. Since it can be carried, the number of times of transportation and the number of times of transportation can be greatly reduced.

As mentioned above, the heat insulation structure of the duct constituted by the construction method of the heat insulation structure of a duct according to the present invention is the surface of the double-sided tape 4 adhered to the extended piece 3a of the heat insulation material for duct 1a. Since the adhesive surface is bonded to the surface of the sheet-like cover material of the other heat insulation material 1b for the adjacent duct, it can be easily installed even by a skilled worker and greatly increases the work time. It can be shortened.
Furthermore, since the heat insulation 1 for ducts adapted to the shape of the duct 5 to be used is manufactured in advance and carried into the site, there is no need for cutting work at the site and not only the work efficiency is improved. In addition, waste such as scraps and remainders are not generated on the site, and the site can be maintained in an orderly manner without being messy.
In addition, by folding and compressing 2 to 5 heat insulation materials for ducts 1 to be used, compressing them, and storing and packing them in a bag-like body, it is possible to reduce the number of times of transportation and lifting, thereby reducing costs and work. Efficiency can be improved.

(A) is a perspective view of the heat insulation heat insulating material for ducts of this invention (b) is sectional drawing of the heat insulation heat insulating material for ducts of this invention Explanatory drawing of the manufacturing method of the heat insulation material for ducts of this invention (a) is a perspective view (b) is a side view (c) is a front view Process drawing of the manufacturing method of the heat insulation material for ducts of this invention (A) is a perspective view of the heat insulation structure of the duct of the present invention (b) is a cross-sectional view of the heat insulation structure of the duct of the present invention (c) is a connection of the heat insulation material for the duct of the heat insulation structure of the duct of the present invention Detailed sectional view of the part Explanatory drawing of the construction method of the heat insulation structure of the duct of the present invention Explanatory drawing of the construction method of the heat insulation structure of the duct of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Insulation insulation material for ducts 1a First insulation insulation material for duct 1b Second insulation insulation material for duct 1c Third insulation insulation material for duct 1 'Long insulation insulation material for long duct 2 Flexible mat-shaped heat insulating material 2a Flexible mat-shaped heat insulating material for heat insulation for the first sheet 2b Flexible mat-shaped heat insulating material for heat insulation for the second sheet 3 Sheet-like cover material 3a Sheet Extending piece portion formed at one end of the surface cover material 4 Double-sided tape 5 Duct 6 Tape 7 Pressure roller 8 Cutting tool 10a Double-sided tape affixing side of the heat insulating material for duct 10b Heat insulating material for duct Opposite end of double-sided tape

Claims (6)

In the heat insulating thermal insulation material 1 for a duct, which is a laminate of the flexible mat-shaped thermal insulation material 2 and the sheet-like cover material 3 that is used by covering the duct,
One side of the sheet-like cover material 3 is formed longer than one side of the flexible mat-like heat insulating material 2, and an end of one side of the sheet-like cover material 3 extends from an end of the flexible mat-like heat insulating material 2. An insulated heat insulating material for ducts, characterized in that it is formed by forming an extended piece portion 3a and attaching a double-sided tape 4 to the extended piece portion 3a.   The heat insulating heat insulating material for ducts according to claim 1, wherein the sheet-like covering material 3 is an aluminum foil or an aluminum foil vapor-deposited cloth, and the flexible mat-like heat insulating material 2 is an inorganic fiber mat.   The heat insulating insulation for ducts according to claim 1, wherein the heat insulating heat insulating material for ducts 1 is formed in advance in a shape used for a duct covering operation. A method of manufacturing a heat insulating material for a duct,
(1) Adhering one surface of the long flexible mat-shaped heat insulating material to one surface of the long sheet-like cover material so as to leave the end of one side of the long side, A first step of producing a long duct heat insulation material by sticking a long double-sided tape to the end of the one side;
(2) a second step of cutting the heat insulation material for long ducts manufactured in the first step into a shape used for a duct covering operation;
A method of manufacturing a heat insulating material for ducts, characterized in that is performed. In the heat insulation and heat insulation structure of a duct in which the heat insulation material for duct 1 made of a laminate of the flexible mat-like heat insulation material 2 and the sheet-like cover material 3 is covered with the duct,
The insulating heat insulating material for duct 1 is formed such that one side of the sheet-like cover material 3 is longer than one side of the flexible mat-like heat insulating material 2, and an end of one side of the sheet-like cover material 3 is the flexible Extending from the end of the insulating mat-like heat insulating material 2 to form an extended piece 3a, and a double-sided tape 4 is adhered to the extended piece 3a,
The first piece of the heat insulating heat insulating material for the duct has an extended piece portion 3a formed at the end portion of one side where the double-faced tape 4 of the sheet-like cover material 3 is attached to the longitudinal direction of the duct. It is covered with a duct so as to be vertical, and the second sheet of the heat insulating insulation for duct is connected to the duct in the same manner adjacent to the first heat insulating insulation for duct 1a in series. The adhesive surface of the double-sided tape 4 of the second insulation heat insulating material 1b for the duct is coated from the double-sided tape adhering portion side 10a of the first insulation heat insulating material 1a for the duct immediately below it. It is formed by adhering to the surface of the sheet-like cover material 3 at the opposite end 10b, and the third and subsequent heat insulation materials for ducts are sequentially connected to the duct and covered in the same manner. Heat insulation structure for ducts. It is the construction method which completes the heat insulation heat insulation structure of the duct according to claim 1 or 2, wherein (1) the first sheet heat insulation heat insulation material 1a, with the flexible mat-like heat insulation material 2a inside, The extension piece 3a to which the double-sided tape 4 formed to extend to the end of one side of the sheet-like cover material 3 is attached is perpendicular to the longitudinal direction of the duct so as to be predetermined in the duct. A first step of arranging at a position of
(2) the second step of covering the duct with the first heat insulation material for duct 1a arranged in the first step being wound around the duct, and the front and rear ends overlapped with tape 6 or the like. ,
(3) At the end 10b opposite to the double-sided tape adhering portion side 10a of the flexible mat-like heat insulating material 2a of the first heat insulating material for duct 1a coated on the duct in the second step, the second sheet The end of the flexible mat-like heat insulating material 2b on the double-sided tape adhering portion side 10a of the duct heat insulating heat insulating material 1b is brought into contact with the first sheet of the heat insulating heat insulating material 1a for the second sheet in series. The insulation heat insulating material 1b for the eye duct is wound around the duct, and the adhesive surface of the double-sided tape 4 surface of the second insulation heat insulating material 1b for the second sheet is attached to the insulation heat insulation material for the first duct immediately below it. A third step of adhering and connecting to the surface of the sheet-like cover material 3 of the end portion 10b opposite to the double-sided tape adhering portion side 10a of the material 1a;
(4) A fourth step of covering the duct by fastening the front and rear ends of the second sheet heat insulating material 1b wound in the third step with tape 6 or the like,
(5) The third and fourth steps are repeated, and the third sheet heat insulation material for the duct 1c, the fourth heat insulation material for the duct, etc. are sequentially connected to the duct and covered. 5th process ...
A method for constructing a heat insulating structure for a duct, characterized in that is adopted.