JPS6171855A - Heat insulating construction - Google Patents

Abstract

PURPOSE:To simplify construction and to shorten a term of works, by preforming a heat insulating panel in matching relation to the dimension and shape of an object to be heat insulated and attaching the same in the site. CONSTITUTION:A heat insulating panel 100 has such a structure that a heat insulating material 102 comprising a glass wool or rock wool board is laminated to an exterior panel 101 comprising a thin metal plate or asbestos board and preliminarily molded in a factory so as to have a proper dimension and shape corresponding to an object to be heat insulate. When this heat insulating panel 100 is attached to an EP casing, it is directly attached to the outer surface of the casing in the case of a side wall 8 and fixed to mount metal fittings by textile screw 16. In the case of a throttled duct or hopper 3, the heat insulating panel 100 is attached onto a reinforcing material 13 and fixed by clamp bolts 12. In either one of the cases, the heat insulating panel may be only attached and fixed at a required place in the construction site.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat insulation method suitable for, for example, insulating the casing of a dry electrostatic precipitator (hereinafter referred to as EP).

[Conventional technology]

As shown in FIGS. 6 and 7, the EPO casing has throttle ducts 1 and 2 formed at both ends in the horizontal direction, one of which is a gas outlet 1a, and the other is a gas outlet 2a.
A hollow base 3 is formed at the bottom and serves as a dust outlet 3a, and an insulator chamber 5 is formed in a part of the ceiling 4 to protrude upward. In addition, 6 in the figure is a support frame.

Since such an EP casing processes high-temperature gas inside, it is necessary to prevent the temperature of the processed gas from decreasing.
Also, for safety reasons, a heat insulating material 7 is pasted on the outer surface of the casing to prevent burns from coming into direct contact with the casing.

Figure 8 shows how to attach the heat insulating material 7 to the EP casing.
2. After the armrests 3, ceiling 4, etc. are completed, the fasteners 9, angle material ZOS fastening pins 11, and fastening delts 12 are attached by welding to their outer surfaces, and then the heat insulating material 7 is stretched.

In addition, 13 in the figure is a reinforcing material attached to the outer surface of each part of the casing by welding.

By the way, the procedure for tensioning the insulation material 7 differs depending on the location.
Although it is attached tightly to the side wall 8 and ceiling 4,
First, a welded wire mesh 14 is placed on the reinforcing material 13 of the choke ducts 1, 2 and the hopper 3, and a heat insulating material 7 is stretched thereon.

These heat insulators 7 are fixed with a stop pin 1 or a stop bolt 12. In addition, on the angle material IQ, an exterior plate 15 of square wave shape, flat plate shape, etc. cut to an appropriate size is attached with a typhus screw 16.
A roof 17 is attached above the ceiling 4 to cover the surface of the heat insulating material 7.

Furthermore, since a part of the side wall 5 has a main pillar 18 with a large cross-sectional area as shown in FIG. Exterior plate 1
5 together with the heat insulating material 7 using fixing bolts 12, etc.

[Problem that the invention seeks to solve]

For example, the conventional insulation construction method for EP casings is to cut the insulation material 7 to a predetermined size and paste it.
Furthermore, since the exterior plate 15 was attached on top of it to cover the surface of the heat insulating material 7, there were problems such as requiring skill and a great deal of labor, a large amount of cost, and also prolonging the construction period. .

Therefore, an object of the present invention is to provide a heat insulation construction method that does not require special skill, requires less labor and cost, and can shorten the construction period.

[Means for solving problems]

In order to achieve the above objectives, the heat insulation method of the present invention.

Thermal insulation panels are pre-formed to the appropriate size and shape at the factory depending on the object to be insulated, and reinforcing material is placed inside the insulation panel at the site of the object to be insulated. The outside of the casing of the heat-retaining object placed,
Alternatively, it can be attached to reinforcing material placed on the outside of the casing.

〔Effect of the invention〕

Since the insulation/armpit flanges pre-formed at the factory are simply attached to the object to be insulated at the construction site, it can be easily done without requiring special skill, saving labor and costs, and shortening the construction period.

〔Example〕

Figures 1 and 2 show a heat insulation panel 100 used in the heat insulation method of the present invention, which is made of an exterior plate 101 made of commercially available thin metal plates, asbestos cement, etc., and glass wool or other materials. It has a structure in which a heat insulating material 102 made of wood, wood, etc. is bonded to a rock using a heat-resistant adhesive or the like.

This heat retention/gunnel 1θ0 is determined in advance at the factory depending on the object to be kept warm (in this example, the EP casing);
As shown in Figure 3, the adhesion of the EP casing, which is the object to be protected, depends on the size and shape of the part. 1
, 2 and Hora -P3, the necessary number of heat-retaining guns 100 molded by mixing trapezoids, triangles, and other shapes as appropriate are used. Cut the boards by an appropriate amount (the shaded area in Figure 1 is the overlapping allowance). In Figure 3, the same parts as in Figure 6 are given the same reference numerals (Figure 4 and Figure 8, (The numbers match those in Figure 9).

On the other hand, the EP casing, which is the object to be kept warm, is
As shown in the figure, all reinforcing materials 13f are placed inside the casing in the side wall 8, and mounting brackets 10 are placed outside the casing.
: l'z weld. Further, in the throttle ducts 1, 2 and the hopper 3, a reinforcing material 13 is arranged on the outside of the casing, and a stopper bolt 12 is welded as appropriate.

Therefore, the heat insulation panel 100'ff, which has been preformed at the factory, is directly attached to the outer surface of the casing on the side wall 8, and the mounting bracket 103vc is fixed to the typhus screw 16 (FIGS. 4 and 5).

Further, in the throttle ducts 1 and 2 and the hopper 3, heat retaining flanges 100 are attached on the reinforcing material 13, and these are fixed with stop bolts 12 (FIG. 4). Regarding the ceiling 4, a heat retaining panel 100 may be attached, but a conventional heat retaining material 7 may be attached and fixed with a stop 711 welded in advance. However, the dimensions and shape of this heat insulating material 7 are also pre-formed at the factory.

In addition, a heat insulation panel 10 is provided at the boundary between the side plate 8 and the hopper 3, etc.
If there is a gap between the two, fill it with 1047ft of heat insulating material.

According to the above heat insulation construction method, all of the heat insulation tunnels 100 are molded in the factory into the dimensions and shapes that correspond to the objects to be kept warm, and at the construction site, the heat insulation tunnels 100 are simply installed and fixed at predetermined locations. Because of this, the construction period can be significantly shortened (to 1/2 to 1/3 of the conventional construction method). In addition, since no skill is required, it is easy to secure workers. Furthermore, even unskilled workers can expect a uniform finish without causing variations in appearance.

The heat insulation method according to the present invention is applicable not only to EP casings but also to flues of various devices and other places and devices that require heat insulation.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the invention,
Figure 1 is a plan view of the heat retention panel, Figure 2 is a side view of the heat retention panel, Figure 3 is a diagram showing the placement of the heat retention panel relative to the EP casing, which is the object to be kept warm, and Figure 4 is the heat retention on the EP casing.・A vertical cross-sectional view showing the mother flannel installed, Figure 5 is a v-■ cross-sectional view of Figure 4, Figures 6 to 9 show the conventional construction method, and Figure 6 is a cross-sectional view of the EP casing. Figure 7 is a vertical cross-sectional view showing the state after heat insulation treatment.
-■ sectional view, FIG. 8 is a vertical sectional view showing an enlarged part of FIG. 7, and FIG. 9 is a horizontal sectional view. 100... Heat insulation panel, 101... Exterior board, 102
...Heat insulation material. Applicant Sub-Agent Patent Attorney Takehiko Suzue Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] Thermal insulation panels are pre-formed to the appropriate size and shape at the factory according to the object to be insulated, and reinforced at the construction site of the object to be insulated.
Or a heat insulation method characterized by attaching it to reinforcing material placed on the outside of the casing.