JPS6084475A - Tightening for door of pressure vessel - Google Patents

Abstract

PURPOSE:To permit a door to be held airtightly by superposing the door onto the flange on the front surface and tightening the outer peripheral sides of the flange and of the door onto a frame body having a U-shaped section. CONSTITUTION:The positions of the opened port part 13 of a frame body 12 having a U-shaped section and of a door 14 are coincided by operating a cylinder 19. Then, the door 4 is turned to be superposed with the flange 3 of a body 1, penetrating through the closed port part 13 of the frame body 12, and then the frame 12 is shifted downward by operating the cylinder 19. Therefore, the wedge part 18 on the back surface of the convex part 16 on the front-side plate 12b of the frame body 12 is engaged with the wedge part 17 on the front surface of the convex part 6 of the door 4 are engaged, and the door 4 is firmly superposed onto the flange 3 surface and held airtightly.

Description

[Detailed description of the invention] After closing the door of the conventional pressure vessel, the arm provided on the door is pushed into the gate-shaped ring provided on the front of the main body and tightened, and high pressure air, etc. is supplied from the rear of the pressure container. It used to be blown in to maintain an airtight seal, but if there is even a small gap between the gasket and the main body, high-pressure air will not be of any use, and the gasket will also be subject to repeated pressure. Therefore, there were various drawbacks such as restrictions on the materials used.

The present application was invented in view of these drawbacks, and is a flange between a pressure vessel body and a door of a high-pressure steam sterilization (disinfector) pressure vessel, a high-pressure gas pressure vessel, a high-vacuum pressure vessel, or a high-pressure liquid pressure vessel. It can be firmly tightened by tightening it with a frame body that has a U-shaped cross section, and since the gasket does not need to be hollow, it can maintain airtightness simply by using an ordinary gasket and pressing it from the front, so it can be easily tightened even under repeated loads. This invention relates to a method for tightening the door of a pressure vessel that can be used while maintaining airtightness for a long time.

Now, to describe the embodiment, a flange (3) is formed on the front end surface of the inner cylinder (2) of the pressure vessel main body (1) around the entire circumference toward the outside.

Separately, a door (4) with the same external size as that of the flange (3) is formed, and an uneven portion (51 (61 ' are formed alternately along the entire length, and a handle (7) is provided on the front of the door (4),
In addition, an arcuate arm (8) is provided on one side of the front side of the door (4),
A bearing (9) is provided at the other end of the arm (8), and the bearing (
9) is rotatably attached to a bearing (10) provided on the main body F11 via a shaft 09.

Furthermore, a frame body (12) having a U-shaped cross section with an open inner side is formed separately from the main body (1) and the door (4).
The inside width (b) of the opening f131 of 21 is the same as the outside middle (b) of the door (4), and the inside height of the opening [3] is 1])
is the same as the outside height of the door (l]), and the frame (12)
A door (
The uneven portions α51 (i6+) of the uneven portions (same pitch (I) as 51(6)) provided on the left and right outer ends of 4) are formed alternately over the entire length.

Uneven part (5) of door (4) ((3) and opening i+:++
The uneven portions (+151 I16) are formed symmetrically so that the door (4) can be fitted from the front side of the opening (+31vc).

A wedge part (17) with a thick lower part is provided on the back side of the convex part (6) of the door (4), and a wedge part (18+) with a thick upper part is formed on the convex part (1610) of the frame α2. It is something.

Furthermore, frame body 1. Cylinder tl in the bottom center of I21! I]
'r provided, '/') 7 der 191 piston rod (
Attach the upper end of the wall to the frame 117)K, and attach the lower end of the cylinder α9 to the floor on which the main body (1) is installed or to the base frame.
It is a spider.

The rear plate (12a) of the frame 02 is fitted and attached to the rear of the flange (3) of the main body (1), and the frame a2) is made vertically slidable with respect to the flange (3).

To explain the operation of the above embodiment, it is a cylinder.

Apply CL9+ to open the frame ([21 opening (131
Match the position (height) of the door (4) and the door (4).
) is rotated to pass through the frame (opening α3 of 12) and overlap the flange (3) of the main body (1), and then the cylinder 1
191 to move the frame d downward, the frame (the protrusion of the front plate (12b) of the frame (the wedge part on the back of the lGl and the front of the protrusion (6) of the door (4)) The wedge part (17) of the tongue (4) is firmly engaged with the flange (3) of the tongue (4).
) to maintain airtightness by polymerizing on the surface.

To open the door (4), use the cylinder α91Y (for It is opened by rotating the frame body (121) to open it.
3115) (16) and the uneven part (5) (6) of the door (4)
1 are formed so that they coincide with each other inversely, that is, the concave portion (15) and the convex portion (6), and the convex portion (1b) and the fourth portion (5).

The door (4) can be kept airtight by firmly tightening both sides.

Figure 5 shows another frame (12c). To explain it, the overall shape of the frame (12C) is different from that in Figure 3.
Although the shape is the same, the height of the frame (12C) is the outer plate (12C).
2d) is formed to have the same height as the height 11) of the door (4), cut the frame body (12G) in the middle between the top and bottom, and cut the upper frame body (1
2C-1) and a lower frame body (12cm2), and at the cut surface of the front side plate (12e) of the frame body (12C), either the upper frame body (12C-1) or the lower frame body (12C-2) When the bottle (12f) is fitted on the other side and the bottle (12f) is fitted on the other side, the upper frame body (12C-1) and the lower frame body (12C-2) are brought into contact. A pin (12f) is formed to fit inside the pipe (12g).

Attach the piston rod l, '2) of the cylinder housing 1) to the center of the outside of the upper frame body (12C-1) and the lower frame body (12C-2), and fix the cylinder Cυ to the main body +11, the base frame, or the floor. It is something to do.

To explain the operation of this embodiment, rotating the door (4) is the same as in the first embodiment, but the upper frame body (12C-1)
and the lower frame body (12C-2)
Y action is applied to raise the frame to the height of the opening (13) h) and the door (
4) until it matches the height h), and when they match, the door (4) overlaps the flange (3), and then operates the cylinder (21) to move the upper and lower frames toward the center. , the pin (12f) is fitted into the pipe (12g), and the wedge portion Q7) I81 is overlapped to airtightly close it. When opening the door (4), it is sufficient to perform the opposite action.

Furthermore, wedge portions 162 are provided on the back surface of the front side plate (60) of the horizontal portion of the upper and lower frames and on the front surface (6I) of the upper and lower ends of the door (4).
I63), the west side of the door (4) can be firmly tightened. Furthermore, the front side plate (
60) and the front (left and right unevenness on 6υ +51 (6) and Q
It is also possible to provide an unevenness (a circle (651) and a wedge portion 1ti21 I63 on the front and back sides thereof) similar to 51 (16) so that the top and bottom are also pressed.

In addition to tightening the frame body using the cylinder described above, a configuration using a motor, gears, etc. will be described.
815 material (23
Install the screw I (IIIc) on the nut member (23).
2 sides are screwed together, and the screw shaft (241 NAND member (23
) is screwed into the upper and lower nut members (231VC4). This is how it was done.

A bevel gear (-〇j is provided at the upper end of the screw shaft C241, and the bevel gear ■5) is connected to a variable rotation direction motor (
The bevel gears (2 gears are meshed with each other) provided on the speed reducer (rotating shaft 8 rotating via 271) from 2 [, 1].

To explain the vertical action of this configuration, the rotation of the motor □□□ rotates the bevel gear (25), which rotates the bevel gear (25) that meshes with the bevel gear. Rotate.screw ll+
Depending on the direction of rotation in step III and 4), the upper and lower frames move up and down as the members (width of the members) come into close contact or separate.
It is something that

Next, to explain the structure and operation of the method for tightening the sliding door, the upper part of the frame body (40) with a U-shaped cross section is opened on the inside and is formed so that a flat plate-shaped door cap can enter and exit. , one end g (42a) of the opening (42) of the frame +aO+
) from the other side outer plate (42b) and the door (4υ), and the widths W and W of both sides of the frame Cl0).
is formed as w = 2w (one side width x 2 times the other side 1]), and the door (4υ is inserted from the top and the narrow side frame (40
When a) is moved to the door (4υ side), the door (
The 4υ ends fit together, and the other end of the door (41) fits into the side frame (
40b).

The ends of the openings (42) of the side frames (40a) and (40b) of the frame body (40) The outside side of the back pressure side frame (4ob) is formed into a thick wedge portion (441) at regular intervals or vertically. death,
A wedge part at both front ends of the door (4υ) (a thick wedge part on the opposite side of the thick side of 44J (when the 4υ are formed at regular intervals or vertically and the frame (40) is moved in the closing direction) The wedge portion (44i) is formed so that the wedge portion (the opening) engages and firmly presses the door (41) toward the fire body (11 side).

+iK frame j4t) upper and lower frames (40c) and door (41)
At the top and bottom ends of the MiJ face plate of the top and bottom frame (40C) and the door (41) on the front of the top and bottom ends of the frame body +,
Wedge portion 14f9 +4 that does not abut when inserted into (tl), but engages when moving the frame (40) and presses the door (41) against the main body H, so that the pressing force acts firmly ′
It is formed at regular intervals of 0.

Next, to explain the moving device for the door (41) and the frame i40, attach a wire or chain (mark 4) to the center of the upper end of the door (4υ), and wind the wire or chain (the decoy is a pulley!) to decelerate i. It is attached to a drum +521 which is rotated by a motor 6υ with an attached motor 611, and the door (9) moves up and down when the wire or chain (48) is stretched or wound up by the rotation of the motor 611 and rubbed.

A nut member 56) screwed together with a screw shaft 551 rotated by a variable rotation direction motor 64) with a reducer 03 is attached to one side of the frame body (40), and the rotation of the screw shaft sister) causes the nut member ( (1) is designed to move left and right; however, it may also be moved left and right by a telescoping mechanism such as a cylinder.

With the above configuration, after the wire or chain door (4 barrels) is extended and the door (41) is lowered to the bottom of the frame (4), the screw shaft 6ω is rotated by the drive of the motor 64 to open the frame (4).
0) to the door (4υ side), each wedge part (published (
4 and (';[i) (4η press and engage to firmly press the door (41) to the flange (3) of the main body [11 to seal airtightly. When opening the door (4υ), do the opposite. When the door (41) is activated, the door (41) is completely raised and the opening is opened.

Since it can be placed inside a pressure vessel, the work can be done easily.

In all embodiments, the same reference numerals indicate the same members and have the same functions.

In addition, t57) is attached to the wedge part on the frame body (121 (40) side) by a roller and is recessed, and the wedge part on the door side has a recess that fits into the roller C57) when the door is completely tightened by the frame body. A place is provided. The number of rollers 67) and Shisho Iku may be freely selected and designed.

In the present application, after the door is superimposed on the flange of the main body as described above, the outer peripheral sides of the flange and the door are tightened using a frame body having a U-shaped cross section. Since it can be firmly tightened to maintain airtightness, airtightness can be maintained with a very simple gasket, and the overall structure is simple.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the entire pressure vessel; Fig. A12 is a perspective view of the main body of container 2; Fig. 3 is a perspective view of the frame; Fig. 4 is a perspective view of the lid; Fig. 5 is another implementation. FIGS. 6 and 7 are front views of another embodiment, and FIGS. 8 and 9 are sectional views of the wedge portion. Patent applicant Masaru Hayashi Figure 8 J7 Figure 9

Claims (1)

[Claims] (1) A method for closing a door of a pressure vessel, which comprises superimposing the door onto a flange on the front side of the main body, and then using a frame having a U-shaped cross section to attach the flange and the door to the outer periphery thereof.