JPH0647554Y2 - Internal heat insulation structure of autoclave - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to improvement of an internal heat insulation structure of an autoclave,
More specifically, it relates to a heat insulating material used for the inner wall of a can of an autoclave for laminated glass and its attachment.

[Conventional technology]

Generally, the heat insulating material is attached by laying the heat insulating material on a wall surface provided with a stat bolt, attaching a wire mesh or a thin iron plate to the surface, inserting a washer into the bolt and fixing with a nut. An autoclave for laminated glass with the same construction method,
A heat insulating material is attached to all outer wall surfaces of the wall body and the door to prevent loss of heat (for example, the actual open Sho 61-9169).
6 gazette, Japanese Patent Publication No. 57-30825 gazette).

[Problems to be solved by the invention]

The autoclave for laminated glass, which is a pressure vessel, has a large plate thickness such as the upper wall of the pressure-resistant structure and the door, which requires a large amount of heat to raise the temperature, but consider energy saving if the temperature rise and decrease are repeated frequently. A heat insulating material is attached to the inner wall of the can so that the temperature inside the can quickly follows. The laminated glass after temporary bonding, which is loaded into the trolley and loaded into the autoclave with such internal heat insulation structure, is included in the intermediate film sandwiched between the two glass plates during the main bonding process of heating and pressing. A part of the plasticizer thus oozes out and falls and adheres to the heat insulating material attached to the inner wall of the can. Further, when a long time has passed, there is a risk that the heat insulating material permeates into the heat insulating material to lower the heat insulating effect, or the plasticizer is ignited, and the heat insulating material is frequently replaced.

[Means for solving problems]

In order to solve the above-mentioned drawbacks and enable long-term durability, the present invention provides an internal insulation structure of an autoclave in which a heat insulating material is laid on the inner wall surface of a can provided with a stat bolt, and the heat insulating material is impermeable. The present invention provides an internal heat insulating structure for an autoclave, which is covered with a non-combustible material and has a slight gap between the heat insulating material and the inner wall surface of the can.

[Action]

According to the present invention, part of the plasticizer contained in the interlayer film exudes and adheres to the surface of the heat insulating material during the heating and pressurizing process according to the above-mentioned structure. It leaches from the seam of the material toward the inner wall of the can, further flows through the slight gap between the back surface of the heat insulating material and the inner wall surface of the can to the can bottom position, and the plasticizer is applied to the can bottom position without penetrating the heat insulating material. The heat retention effect is always maintained by being stored and automatically taken out.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a partial wall perspective view of an embodiment of the heat insulating material mounting structure of the present invention, FIG. 2 is a perspective view of the heat insulating material with a part of the encapsulating material cut away, and FIG. 3 is a schematic view of the autoclave. Show.

The autoclave 1 shown in FIG. 3 is a horizontal cylindrical pressure vessel composed of a body portion 2, an end plate 3, and an openable / closable lid 4. A compressor 5, a vacuum pump 6 are connected by piping, and a heating facility (not shown) is provided inside. This is a built-in facility in which an automatic drain valve 7 for extraction, which communicates with the inside, is installed in the lower part and is capable of decompressing, increasing pressure and increasing temperature.

In this equipment, the heat insulating structure of the autoclave 1 is laid on the inner wall of the can as described above. This structure is installed on the inner wall side of the body plate 8 of the body 2 shown in FIG. A stat bolt 10 having a length is welded, and its arrangement dimension is adjusted to the width of the heat insulating material 9. Between the stat bolts 10 in which the mesh of the wire net 11 is inserted and locked in the arranged stat bolts 10 to form a lining state, and the heat insulating material 9 in which the heat-resistant board 13 is covered with a metal sheet is arranged on the wire net 11. In the heat insulating material 9, a heat-resistant board 13 having a semicircular cutout 12 in the thickness direction is covered with an aluminum foreskin bag 14 as shown in FIG. The opening is sealed with a glass cloth tape 15, for example.

The heat insulating material 9 to be laid next is brought into contact with another adjacent heat insulating material 9, and a slight space portion 19 is formed between the body plate 8 and the heat insulating material 9 via the wire net 11 stretched over the inner wall of the can. It is stopped, but the locking method is to draw a wire 16 between the array stat bolts 10,
The heat insulating material 9 is fixed by winding it around the tip of the bolt to prevent it from temporarily falling off. Furthermore, a stainless decorative plate 20 is stretched on the upper surface of the wire 16 and the inner circumference of the straw, but the seam between the plates is overlapped, and the washer 17 is inserted into the stud bolt 10 penetrating the decorative plate 20. When the nut 18 is screwed on, the heat insulating material 9 is completely locked via the decorative plate 20. The wire net 11 and the wire 16 used are made of stainless steel in consideration of corrosion resistance, and the heat insulating board 13 of the heat insulating material 9 is
A molded product in which the notches 12 are provided in accordance with the arrangement pitch of the stat bolts 10 is preferable, and when the foreskin bag 14 to be encapsulated is crushed in accordance with the notches 12, the stat bolts 10 are not broken and the foreskin bag is not broken.
14 fits well, and by doing so, the space between the adjacent heat insulating materials 9 is made minute and the heat insulating efficiency is maintained. Further, the encapsulation of the heat insulating material 9 is not particularly limited as long as it is an impermeable and non-combustible material such as a metal sheet.
Furthermore, if a heat insulating material is used instead of the heat-resistant board 13 that is wrapped in the foreskin bag 14, for example, when glass wool is formed into a futon in the foreskin bag 14, the heat insulating material 9 cuts into the mesh of the wire mesh 11, Notch may cause contact with the inner wall of the can.
The divided products forming 12 are wrapped with a foreskin bag 14 or a wire mesh with a small mesh is used.

The heat insulating material 9 is attached also to the inner wall side of the end plate 3, the plate 3 and the lid 4 of the autoclave 1 in the above-mentioned configuration procedure.

Hereinafter, the operation of the present invention described above will be described.

When the laminated glass having been pre-bonded is loaded on a trolley and carried into the autoclave 1 and the pressure and temperature are raised to a specified value, the interlayer film sandwiched between the two glass plates is included in the film. Part of the plasticizer present oozes out and adheres to the surface of the decorative plate 20. The attached plasticizer drops or flows to a low place, but during this period, the plasticizer leaches into the heat insulating material 9 through the joints of the decorative plate 20 or the through holes of the stud bolts 10 to form a foreskin bag.
The drain discharge valve 7 provided at the bottom of the autoclave 1 flows through the sheet surface of 14 and flows from the contact point of the adjacent heat insulating material 9 to the body plate 8 of the inner wall of the can, and then flows through the space formed by the wire net 11 to the bottom of the can. It is a more timely extraction.

[Effect of device]

The present invention provides a heat-insulating material that is wrapped with an impermeable non-combustible material on the inner wall surface of an autoclave can, and a small space is provided between the heat-insulating material and the inner wall surface of the can via a wire mesh, so that the temperature rises during pressurization. Since the plasticizer of the exuding interlayer film is discharged without permeating into the heat insulating material, the internal heat insulating structure keeps good follow-up of the temperature rise inside the can, prolongs the life of the heat insulating material, and significantly improves the production efficiency. Contribute to.

[Brief description of drawings]

The drawing shows an embodiment of the present invention, FIG. 1 is a partial wall perspective view of a heat insulating material mounting structure, FIG. 2 is a perspective view of a heat insulating material in which a part of the encapsulating material is cut out, and FIG. 3 is an overview of an autoclave. It is a figure. 1 ... Autoclave, 9 ... Insulation material 11 ... Wire mesh, 14 ... Foreskin bag, 19 ... Space 20 ... Veneer

Claims (1)

[Scope of utility model registration request] 1. In an internal heat insulation structure of an autoclave in which a heat insulating material is laid on an inner wall surface of a can provided with a stat bolt, the heat insulating material is covered with an impermeable non-combustible material, and the heat insulating material and the inner wall surface of the can. The internal heat insulation structure of the autoclave, which is characterized by a slight gap in the interior.