JPH074476Y2 - Downward extraction type HIP device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a downward extraction type HIP device.

(Prior Art) A pressure vessel supported vertically on a gantry and having upper and lower openings; upper and lower lids that are removably fitted into the upper and lower openings of the pressure vessel, respectively. A lower lid lifting cylinder device having a lower lid lifting cylinder device having a lifting platform for loading and unloading the object to be processed through the lower lid, is disclosed in, for example, Japanese Patent Laid-Open No. 58-71301, It is known from Japanese Patent Publication No. 58-48406.

In this type of HIP device, airtightness is very important, and therefore O-ring replacement work is performed.

Also, the inspection of the outer surface of the pressure vessel is important for safety measures,
For this reason, it is necessary to remove the pressure vessel (note that HIP equipment is subject to the High Pressure Gas Control Law, etc.
Refer to the isotropic press technology issued on April 13, 1988. Publisher
Nikkan Kogyo Shimbun).

(Problems to be solved by the invention) By the way, conventionally, when replacing the O-ring of the upper lid, the upper lid is used, and when inspecting the outer peripheral surface of the pressure vessel, the pressure vessel is used to suspend the chain block or the like provided above the HIP device. It was done using a lowering device.

Using this suspension device requires slinging work,
It requires a high level of technology, and the top lid and the pressure vessel may shake sideways during taking out, which makes the work difficult.

In view of the above-mentioned circumstances, the present invention aims to enable the cylinder device to also perform the work of removing the upper lid and the pressure vessel by partially improving the lower lid lifting cylinder device in the lower extraction type HIP device. To aim.

(Means for Solving the Problem) The present invention relates to a pressure vessel 1 that is vertically supported by a gantry 4 and has openings 2 and 3 on the upper and lower sides;
Upper and lower lids 1 that can be inserted into and removed from the lower openings 2 and 3, respectively.
In the lower take-out HIP device, the lower lid lifting cylinder device 21 is provided with the lower lid lifting cylinder device 21 having the lifting platform 28 for loading and unloading the object to be processed 18 through the lower lid 14. In order to do so, the following technical measures are taken.

That is, the present invention comprises a container holder 10 that is engaged with the lower end of the pressure container 1 to support the container 1 and is disengaged from the lower end of the container 1 to allow axial movement of the container 1. The lower lid lifting cylinder device 21 is provided with a lower piston rod 27 which is a double action type having a lifting stroke capable of pulling out the pressure vessel 1 from the gantry 4 and is connected to the lifting table 28. Separately from 27, an upper piston rod 26 that moves up and down together with the rod 27 is provided, and an upper lid supporting member 38 that can be attached to and detached from the upper lid 12 to support the upper lid 12 is provided.
It is characterized by having.

(Operation) According to the present invention, in order to replace the high-pressure seal 13 such as the O-ring of the upper lid 12, the lower lid elevating cylinder device 21 is acted on by the fluid pressure in the descending direction so that the elevating table 28 as shown in FIG. To the extraction position. This position is also a position where the upper lid support member 38 can be attached to the upper lid 12.

Then, the upper lid support member 38 and the upper lid 12 are connected by the fasteners 37, and thereafter, when the fluid pressure in the ascending direction is applied to the lower lid lifting cylinder device 21, the upper lid 12 is moved to the pressure vessel 1 as shown in FIG. Will be removed more.

Next, when detaching the container 1 from the gantry 4 for inspection of the pressure container 1 or the like, the container holder 10 is detached from the lower end of the pressure container 1 and the container 1 is supported via the lower lid 14. When the lower lid lifting cylinder device 21 is acted on by the fluid pressure in the descending direction, the pressure container 1 is lowered by the lower lid 14.
It is supported by the lifting table 28 through the and is pulled out downward from the gantry 4.

(Embodiment) An embodiment and operation of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a pressure vessel, which has a cylindrical structure having openings 2 and 3 on the upper and lower sides, and is provided on a gantry 4 with the axis of the vessel being the vertical direction.

Reference numeral 5 denotes a cooling jacket structure, which is surrounded by the outer peripheral surface of the pressure vessel 1 so as to form a cooling jacket 6, and is fixed to the mount 4 by fasteners 7 such as bolts.

Incidentally, seals 8 and 9 are provided above and below the cooling jacket 6, and water and other fluid refrigerants can be supplied to and discharged from the cooling jacket 6.

Reference numeral 10 denotes a container holder, which in the illustrated first embodiment is radially divided and is detachably attached to the lower end surface of the gantry 4 by a fastener 11 such as a bolt.

The container holder 10 of the first embodiment is engaged with the lower end surface of the pressure container 1 to support the container 1 from below, and by removing the container holder 10 from the mount 4, the container holder 10 The container 1 is detached from the end face so that the container 1 can be pulled out below the gantry 4.

An upper lid 12 is removably fitted into the upper opening 2 of the pressure vessel 1 and is hermetically sealed by a high-pressure seal 13 such as an O-ring.

Reference numeral 14 denotes a lower lid. In this embodiment, an annular upper lower lid 14A fitted to the lower opening 3 of the pressure vessel 1 and a lower lower lid 14B fitted to the lower upper lid 14A. Each fitting surface is provided with high-pressure seals 15A and 15B such as O-rings to be airtight.

The lower upper lid 14A is attached to the lower end of the pressure vessel 1 with a clamper (not shown). The lower lower lid 14B is fitted in the lower upper lid 14A so as to be freely inserted and removed.

Reference numeral 16 denotes a heat insulating layer, which is housed in the high pressure chamber 20 in the pressure vessel 1. In this embodiment, the lower lid 14 has an inverted cup shape.
It is supported by the lower upper lid 14A.

Reference numeral 17 denotes a heater, which is provided on the inner circumference of the heat insulating layer 16 as a plurality of stages in the axial direction.

Reference numeral 18 denotes an object to be processed, which is placed on the hearth 19 on the lower upper lid 14A and can be put into and taken out from the processing chamber 20 from below.

Reference numeral 21 denotes a lower lid lifting cylinder device, which is attached to the fixed wall 22 together with the gantry 4 by a bracket 23 or the like, and is fitted to the cylinder tube 24 which is attached in parallel with the axis of the pressure vessel 1. Upper and lower piston rods extending vertically from the piston 25
26 and 27, and the lower piston rod 27 has a lift table 28 on which the lower lower lid 14B is detachably mounted.

The lower lid lifting cylinder device 21 is of a double action type by switching and supplying the fluid pressure from the pump 29 to the cylinder chambers above and below the piston 25 via the switching valve 30, and to the pipes 31 and 32. Has speed control means having check valves 33, 34 and throttle valves 35, 36 respectively.

Further, the lower lid lifting cylinder device 21 is configured to move the object to be processed 18 into the processing chamber.
The upper and lower piston rods 26 and 28 together with the lower piston rod 27 have an up-and-down stroke that allows the pressure vessel 1 to be loaded and unloaded from below and pulled out from the pedestal 4. At the upper end of the upper piston rod 26, an upper lid support member that is detachably attached to a fastener 37 such as a bolt on the outer peripheral side surface of the upper end 12.
38 has a mounting surface portion 38A of the upper lid supporting member 38.
The upper lid 12 is supported and detachable from the upper opening 2 as shown in FIG.

In addition, in FIG. 1, 39 is a press frame,
Whether it is a trolley system or turning system, the top cover 12
Is releasably engaged with the upper end surface of the
It supports the axial force during HIP processing.

FIG. 5 shows a second embodiment of the container holder 10, which is provided on the lower end surface of the gantry 4 so as to be pivotable by a pin 40, and pivots in the arrow direction from the engaged state shown (manual or motor). , Any of the driving force of the cylinder may be used), so that the container 1 can be pulled out.

It should be noted that when the container holder 10 is mounted on the gantry 4, the container holder 10 has a divided structure and may be any of the detachable type of the first embodiment, the swivel type of the second embodiment, and the slid type, not shown. Further, the container holder 10 may be provided on the lifting table 28 as shown by a phantom line in FIG.

Next, the operation will be described.

FIG. 1 shows an object to be processed 18 loaded into the processing chamber 20 from below.
It shows that the HIP process is in progress, and the object to be processed 18 is subjected to isotropic compression under high temperature and high pressure by pressure increase of a pressure medium such as an inert gas such as argon gas and energization of the heater 17, and the axial force at this time is It is carried by the press frame 39, and leakage of high-pressure gas and the like is prevented by the high-pressure seals 13, 15A, 15B. During the process, the cooling jacket 6 is circulated with a coolant.

When the predetermined HIP process is completed, the press frame 39 is evacuated, the pressure medium gas is discharged, the energization is stopped, etc., and then the lower lid lifting cylinder device 21 is operated in the descending direction. As shown in FIG. The body 18 is taken out downwards via the lifting platform 28.

When replacing the high-pressure seal 13 of the upper lid 12, as shown in FIG. 2, the upper lid 12 and the upper lid supporting portion 38 are opposed to each other, the mounting surface portion 38A and the mounted surface portion 12A are connected by the fasteners 37, and then the lower lid lifting / lowering operation is performed. When the cylinder device 21 is raised, the upper lid 12 is lifted above the upper opening 2 as shown in FIG.

As is apparent from the drawing, the lifting of the upper lid 12 is performed by the processing chamber 20.
Since the loading operation of the object to be processed 18 into and out of the object is used, slinging work by a chain block or the like is unnecessary, and moreover, it can be accurately lifted without causing lateral shake or the like.

After replacing the high-pressure seal 13 of the upper lid 12, the lower lid lifting cylinder device 21 is moved down to close the upper opening 2 in an airtight state.

Next, in order to inspect the outer surface of the pressure vessel 1, for example, the degree of fatigue, the presence of cracks, etc., the frame 4 of the vessel 1 is pulled out.

Prior to this withdrawal, the cooling fluid in the cooling jacket 6 is discharged and the container holder 10 is set to a position allowing the container to be withdrawn, and then the lower lid lifting cylinder device 21 is lowered, as shown in FIG. The pressure vessel 1 supported by the lifting platform 28 via the lower lid 14 is pulled out from the gantry 4. In this embodiment, the heat insulation layer 16 and the like are mounted together with the pressure vessel 1 on the pedestal 4
More pulled out. Upon completion of predetermined inspections and repairs, the pressure vessel 1 is fitted to the mount 4 and supported by the holder 10 by the raising / lowering operation of the lower lid raising / lowering cylinder device 21.

(Effect of the Invention) The present invention is as described above, and according to the present invention, by providing the lower lid lifting cylinder device with the upper piston rod having the upper lid supporting member, the cylinder device can be used for lifting the upper lid or the like. It can be used for both purposes, and the replacement of high-pressure seals can be facilitated while simplifying the structure by sharing parts.
Moreover, slinging work with a chain block or the like is not necessary, and the upper lid can be lifted accurately without lateral swing.

Further, the present invention is provided with a container holder that is detachably attached to the lower end of the pressure container and supports the container from below, and the holder is detachable from the container. The maintenance performance can be improved by pulling it out of the gantry or setting it in the charging set.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is an elevation sectional view during HIP treatment, FIG. 2 is an elevation sectional view before or after HIP, and FIG.
FIG. 4 is an elevational sectional view showing a state of lifting the upper lid, FIG. 4 is an elevational sectional view showing a state where the pressure container is pulled out, and FIG. 5 is a plan view showing an attached state of the container holder according to the second embodiment. DESCRIPTION OF SYMBOLS 1 ... Pressure container, 2, 3 ... Upper / lower opening, 4 ... Stand, 10 ... Container holder, 12 ... Upper lid, 14 ... Lower lid, 21 ... Lower lid lifting cylinder device, 26, 27 ... Upper / lower piston Rod, 28 ... Elevating table, 3
8 ... Top support member.

Claims (1)

[Scope of utility model registration request] 1. A pressure vessel (1) which is vertically supported by a gantry (4) and has openings (2) (3) on the upper and lower sides thereof;
Upper and lower lids (12) and (14) that are fitted in the upper and lower openings (2) and (3) of the pressure vessel (1) so that they can be inserted and removed, respectively; In a lower take-out HIP device including a lower lid lift cylinder device (21) having a lift table (28) for loading and unloading via a 14), a lower end of the pressure vessel (1) is engaged. And a container holder (10) that supports the container (1) and is separated from the lower end of the container (1) to allow axial movement of the container (1). The device (21) includes a lower piston rod (27) which is a double action type having an elevating stroke that allows the pressure vessel (1) to be pulled out from the gantry (4) and which is connected to the elevating table (28). In addition to the rod (27), it has an upper piston rod (26) that moves up and down together with the rod (27). The parts piston rod (26), the upper lid is freely mounted releasably (12) upper lid (12) supportable upper lid support member (38)
A downward extractable HIP device characterized by being equipped with.