JPH0248695B2 - DANNETSUSEKOHOHOOYOBIDANNETSUSEKOSOCHI - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is applicable to a heat insulation construction method for forming a blanket-like heat insulation layer made of various fibers on the ceiling, floor, wall, etc. of a building, and to the heat insulation construction method. The present invention relates to insulation construction equipment.

[Conventional technology]

The insulation construction method involves forming a heat insulating layer on the ceiling, floor, and walls of a building using various fibers such as glass wool, rock wool, cellulose fiber, and wood fiber. A blowing insulation construction method in which blowing is performed on the construction surface to form a heat insulating layer, and a spray method in which a mixture of various fiber insulation materials and liquid adhesive is sprayed onto the surface to be insulated to form a heat insulating layer. There is a method of insulation construction in which a heat insulation layer is formed directly on site, and a building material in which insulation material pine is pasted on the back of various panels is used for ceilings of buildings,
There is a insulation construction method that involves building insulation into floors, walls, etc.

[Problem that the invention seeks to solve]

By the way, in the conventional blowing insulation construction method, the insulation material in the insulation layer sinks due to the weight of the insulation material itself in the insulation layer obtained, vibrations transmitted to the insulation layer, etc. In addition, the resulting insulation layer may be easily deformed by wind pressure, etc., so it is difficult to obtain a insulation layer that maintains its perfect shape, that is, maintains sufficient insulation performance permanently. It has the disadvantage that it cannot be used.

In addition, in the other conventional spray insulation construction method, since this construction method is a construction method in which the insulation material and liquid adhesive are scattered from a spray nozzle toward the insulation construction surface along with high-pressure air, a large amount of As moisture is supplied and blown out, not only does it take a long time to dry to obtain a heat insulating layer, but in wooden buildings, etc., it increases the moisture content in the wood, causing warping, corrosion, stains, etc. It has the disadvantage of causing

Furthermore, we use building materials made by pasting ready-made heat insulating mats on the backs of various panels for the ceilings of buildings,
In the insulation construction method for assembling floors, walls, etc.,
This method has drawbacks such as the complicated process of cutting the heat insulating mat to fit the size of the panel and pasting it to the back of the panel.

In contrast, with the insulation construction method of the present invention, the insulation layer, which is constructed with a predetermined thickness and density, does not deform or sink due to changes over time, and the drying and curing required for obtaining the insulation layer is short. , so even in wooden buildings, there is no negative effect on the building materials.
It forms a heat insulating layer with excellent permanent heat insulation performance.

Moreover, the insulation construction apparatus of the present invention is a insulation construction apparatus that makes the insulation construction method of the present invention reliable.

[Means for solving problems]

The insulation construction method of the first invention includes a step of transporting a loose film-shaped insulation material blown from a blower toward the outlet of a hose connected to the blower, a step of spraying and adhering a liquid adhesive to a loose film-like heat insulating material, and simultaneously spraying and adhering the liquid adhesive, or after spraying and adhering the liquid adhesive; The method includes a step of blowing out high-pressure air from the inner circumferential wall surface of the hose toward the outlet of the hose, and a step of blowing the heat insulating material to which the adhesive is sprayed and attached from the outlet of the hose toward the surface to be insulated. The adhesive is dried and cured to form a blanket-like heat insulating layer.

In the insulation construction method of the present invention, loose
The film-shaped insulation material may be a loose film-shaped insulation material of the same kind as that used in the conventional blowing insulation construction method, for example, insulation materials made of various fibers such as glass wool, rock wool, cellulose fiber, or wood fiber. is used.

In addition, the liquid adhesive that is sprayed onto the loose film insulation that is being transported through the hose may be, for example, a latex-based rubber adhesive or a PVA resin dissolved in water. Generally, liquid adhesives with a solid content of about 10wt.% are used. A small amount of the liquid adhesive is sprayed onto the loose film insulation material being transported through the hose, and is usually 3 to 15 parts by weight of the solid adhesive component per 100 parts by weight of the loose film insulation material. It is enough.

The insulation construction apparatus of the second invention is a hose for spraying insulation material, one end of which is connected to a blower device for loose film insulation material, and the other end of which is a spout serving as an outlet for the insulation material. The inner wall surface of the hose is provided with an adhesive jetting nozzle that communicates with a pump for liquid adhesive, and an adhesive jetting nozzle that connects with an air compressor and whose tip is connected to the jetting port at the end of the hose. The high-pressure air jetting nozzle and the adhesive jetting nozzle are located on the same peripheral surface in the length direction of the hose, or the high-pressure air jetting nozzle and the adhesive jetting nozzle are on the spout side of the end of the hose. The hose has a configuration that is formed in the following manner.

〔Example〕

Hereinafter, one example of the insulation construction apparatus of the present invention will be explained based on the drawing example, and the specific configuration of the insulation construction method of the present invention will be explained based on how to use the insulation construction apparatus of the drawing example. do.

An embodiment of the insulation construction apparatus of the present invention shown in FIG. 1 includes a hopper 1 for supplying raw materials, a beating machine 2 connected to the hopper 1, a blower device 3, and a It consists of a hose 4 for spraying heat insulating material connected via the beating machine 2.

As described above, one end of the hose 4 for spraying the heat insulator is connected to the blower device 3 for the heat insulating material via the beating machine 2, and the other end 5 is used as a spout for the heat insulating material. It is something.

Furthermore, nozzle fittings 6 and 7 are attached to the inner peripheral wall surface of the hose 4 at two symmetrical positions with respect to the center line of the hose 4. 7, adhesive jetting nozzles 8, 8 communicating with the liquid adhesive pump through a thin tube, and high-pressure air jetting nozzles 9, communicating with the air compressor through a thin tube.
9 are attached such that the tip of each nozzle is directed toward the center point of the spout of the heat insulating material, which is the other end 5 of the hose 4.

In addition, in the hose 4 for spraying the heat insulating material in the illustrated embodiment, the adhesive jetting nozzles 8, .
8 and the high-pressure air jetting nozzles 9, 9 are installed in a positional relationship as shown in FIG.
As shown in FIG. 2B, the adhesive jetting nozzle 8 and the high-pressure air jetting nozzle 9 may be installed in a parallel positional relationship with each other. may be addressed to one piece.

Insulation construction using the insulation application apparatus having the above-mentioned configuration is carried out after the insulation material, for example, torn glass wool, which is fed into the hopper 1, is beaten into a loose film-like insulation material by the beating machine 2. - A film-shaped heat insulating material is transferred through the hose 4 by the blower device 3 toward the spout 5 which is the other end of the hose 4.

As a result, liquid adhesive is sprayed and adhered to the loose film heat insulating material being transferred within the hose 4 from the adhesive jetting nozzles 8, 8, and at the same time, the high pressure air jetting nozzles 9, High pressure air is ejected from 9 toward the outlet of the hose 4, and the liquid adhesive is sprayed and the attached heat insulating material is sprayed onto the hose 4.
The adhesive is sprayed from the other end 5, which is a spout, toward the insulation construction surface, and then the adhesive is dried and hardened to form a blanket-like insulation layer.

In the insulation construction method as described above, a net is stretched in advance along the insulation target surface on which the insulation layer will be formed, and a predetermined amount of insulation material is blown between the net and the insulation target surface. , and then press the net surface flat to dry and harden the adhesive.
A desired shape of the heat insulating layer can be obtained.

[Actions and effects of the present invention]

The insulation construction method of the present invention having the above-mentioned configuration can complete the drying and curing process of the adhesive in a short time when forming the insulation layer on the surface to be insulation-treated, so that the insulation construction can be performed extremely efficiently. It is something.

In addition, in the insulation construction method of the present invention, the liquid adhesive is sprayed and the attached insulation material forms a blanket-like insulation layer, and the adhesive is solidified in that shape. The form is fixed,
It does not deform due to wind pressure or the insulation material in the insulation layer sinks over time, and it can form an insulation layer with a permanently stable shape and maintains its perfect shape. In other words, it is possible to form a heat insulating layer that permanently exhibits sufficient heat insulating performance.

Furthermore, when insulating collective piping in factories, buildings, etc., conventionally, each pipe was covered with a pipe cover, but according to the insulation construction method of the present invention, a frame is created around the collective piping. As a result, it is possible to carry out insulation construction using this frame surface as the surface to be subjected to insulation construction, so that space for insulation construction can be omitted, labor can be saved, and construction speed can be increased.

Furthermore, in the insulation construction method of the present invention, water resistance and insect repellency can be achieved by appropriately mixing chemicals such as preservatives, insect repellents, flame retardants, and water repellents into the liquid adhesive. It is also possible to obtain a heat insulating material that has properties such as durability, corrosion resistance, nonflammability, and flame retardancy.

Furthermore, the insulation construction method of the present invention is suitable for loose
Since liquid adhesive is sprayed and adhered to the film-like heat insulating material inside the hose, static electricity is prevented from being generated inside the hose, thereby suppressing the generation and scattering of dust. Therefore, a heat insulating layer with uniform density, that is, excellent heat insulating performance, and a beautiful finish can be obtained.

In addition, in the insulation construction method of the present invention, high-pressure air is blown out from the middle of the hose toward the outlet of the hose, so the work can be continued smoothly without clogging the insulation material inside the hose. It is something.

Furthermore, the insulation construction apparatus of the present invention has the effect of easily and smoothly carrying out the insulation construction method that exhibits the above-mentioned functions.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view of a main part of a hose in one embodiment of the insulation construction device of the present invention, and Fig. 2 shows an adhesive jetting nozzle and a high-pressure air jetting nozzle attached to the inner circumferential wall of the hose. FIG. 4: hose, 5: spout which is the other end of hose 4, 6, 7: nozzle fitting, 8: nozzle for spouting adhesive, 9: nozzle for spouting high-pressure air.

Claims (1)

[Scope of Claims] 1. A step of transporting a loose film-shaped heat insulating material blown out from a blower toward the outlet of a hose connected to the blower, and A step of spraying and depositing a liquid adhesive on a film-shaped heat insulating material, and simultaneously spraying and depositing the liquid adhesive, or after spraying and depositing the fluid, from the inner circumferential wall surface of the hose toward the outlet of the hose. An insulation construction method comprising the steps of: blowing out high-pressure air toward the insulation; and spraying the adhesive and spraying the attached insulation material from the outlet of a hose toward the surface to be insulation-constructed. 2. An adhesive spout connected to a liquid adhesive pump on the inner circumferential wall of the hose, one end of which is connected to a loose-film insulation blower device and the other end of which is a spout. The high-pressure air jetting nozzle, which is connected to the air compressor and whose tip is directed toward the jetting port at the end of the hose, is located at the same circumferential surface in the length direction of the hose or the adhesive jetting nozzle. 1. A heat insulation construction apparatus comprising a hose for spraying heat insulating material, and a high-pressure air blowing nozzle is formed at a position on the end of the hose on the side of the blowing outlet.