JPH0436162U

JPH0436162U -

Info

Publication number: JPH0436162U
Application number: JP7817590U
Authority: JP
Priority date: 1990-07-25
Filing date: 1990-07-25
Publication date: 1992-03-26
Anticipated expiration: 2005-07-25
Also published as: JP2507034Y2

Description

[Brief explanation of drawings]

第１図は本考案の圧力容器用扉の気密装置を示
す、第２図のＡ−Ａ断面に相当する図、第２図は
本考案の対象となる圧力容器の正面図、第３図は
第２図のＢ部拡大図、第４図は従来の圧力容器用
扉の気密装置を示す、第２図のＣ−Ｃ断面に相当
する図である。１……圧力容器本体、２……ヒンジ部、３……
扉、４……第一の凸部、５……第一の凹部、６…
…クラツチ板、７……開口、８……受クラツチ板
、８ａ……抑え板部、９……第二の凹部、１０…
…第二の凸部、１１……凹溝、１２……パツキン
グ、１３……第一の凹溝、１４……第二の凹溝、
１５……第一のパツキング、１５ａ……先端面、
１６……第二のパツキング、１６ａ……先端面、
１７……第一の圧力気体供給路、１８……第一の
圧力センサ、１９……第一の開閉弁、２０……第
二の圧力気体供給路、２１……第二の圧力センサ
、２２……第二の開閉弁、２３……凹部、２４…
…空間、２５……縁部、２６……分岐流路。 Figure 1 shows the airtight device for a pressure vessel door according to the present invention, and corresponds to the AA cross section in Figure 2. Figure 2 is a front view of the pressure vessel to which the present invention is applied. FIG. 4 is an enlarged view of part B in FIG. 2, and FIG. 4 is a view corresponding to the CC cross section in FIG. 2, showing a conventional airtight device for a pressure vessel door. 1...Pressure vessel main body, 2...Hinge part, 3...
Door, 4... first convex part, 5... first recessed part, 6...
...clutch plate, 7...opening, 8...receiving clutch plate, 8a...pressing plate part, 9...second recessed part, 10...
...second convex portion, 11...concave groove, 12...packing, 13...first concave groove, 14...second concave groove,
15...first packing, 15a...tip surface,
16...Second packing, 16a...Tip surface,
17...First pressure gas supply path, 18...First pressure sensor, 19...First on-off valve, 20...Second pressure gas supply path, 21...Second pressure sensor, 22 ... second on-off valve, 23 ... recess, 24 ...
...space, 25...edge, 26...branch flow path.

Claims

[Scope of Claim for Utility Model Registration] (1) A door that can freely close the opening on the front side of the pressure vessel body, the door being supported so as to be movable up and down on the tip of a hinge whose base end is pivoted to the pressure vessel body, and this door. The clutch plate has a clutch plate fixed to the left and right sides of the pressure vessel and has a clutch plate in which first convex portions and first concave portions are alternately connected, and has an L-shaped cross section facing toward the center of the pressure vessel main body, A second concave portion through which the first convex portion can freely pass through, and a second convex portion through which the first convex portion can freely pass through, on the restraining plate portion parallel to the front surface of the container body,
The receiving clutch plates are connected alternately at the same pitch as the first convex portion and the first concave portion and are fixed to both the left and right sides of the opening on the front side of the pressure vessel main body, and the rear face of the door and the pressure vessel that face each other when the door is closed. a groove formed on one side of the front surface of the main body so as to surround the entire circumference of the opening; and a packing fitted in the groove;
In the airtight device for a pressure vessel door, which comprises a pressure gas supply path that can freely send pressure gas into the deep part of the groove, the airtight device is formed independently of each other on one surface of the door,
and first and second grooves each surrounding the entire circumference of the opening, a first packing fitted in the first groove located on the outer peripheral side, and a second packing located on the inner peripheral side. A second packing fitted in the groove, a first pressure gas supply path for feeding pressure gas into the inner part of the first groove, and the above-mentioned gas supply path in the middle of the first pressure gas supply path. A pressure sensor and a first on-off valve, which are provided in series from the side of the first groove, a second pressure gas supply path for feeding pressure gas into the deep part of the second groove, and A second on-off valve provided in the middle of the second pressure gas supply path, and a position where the tip surfaces of the first and second packings face each other on the other surface of the rear surface of the door and the front surface of the pressure vessel main body. The recess is formed to surround the entire circumference of the opening, into which the tips of both packings can freely enter, and a controller for controlling opening and closing of the first and second on-off valves. , after opening only the first on-off valve to send pressure gas into the first groove and then closing the first on-off valve, the pressure in the first groove detected by the pressure sensor is An airtight device for a door for a pressure vessel, characterized by having a function of opening a second on-off valve when the pressure drops. (2) Second, place one end in the middle of the pressure gas supply path between the second on-off valve and the second groove, and place one end in the middle of the pressure gas supply path between the first and second grooves. position the other end,
The airtight device for a pressure vessel door according to claim 1, having branch flow paths connected to each other. (3) When the pressure in the first groove detected by the pressure sensor decreases, the controller opens the second on-off valve and activates an alarm means prompting replacement of the first packing; The airtight device for a pressure vessel door according to any one of claims 1 to 2.