KR102409112B1 - Hot isostatic pressing device - Google Patents

Abstract

The present invention relates to a hot isostatic pressurizing device with improved cooling performance, a pressure vessel having an open side, a heating unit disposed inside the pressure vessel to heat an object to be treated, and a space between the pressure vessel and the heating unit a base portion having an insulator disposed in the insulator, an outlet for closing an open side of the pressure vessel, an object to be treated, an outlet for discharging the gas stored in the pressure vessel, and an inlet for supplying gas to the pressure vessel; A first cooling circulation unit connected to the outlet and the inlet and cooling the heated gas inside the pressure vessel from the outside and circulating it to the inside of the pressure vessel, and the first cooling circulation unit connected to the first cooling circulation unit and a second cooling circulation unit for cooling by selectively flowing at least a portion of the circulating gas. With this configuration, the object to be treated can be cooled by cooling and circulating the heated gas inside the pressure vessel from the outside, so that it is possible to obtain the effect of improving mechanical properties of the object to be treated, controlling the physical properties and shortening the process time.

Description

HOT ISOSTATIC PRESSING DEVICE

The present invention relates to a hot isostatic pressurizing apparatus, and more particularly, to a hot isostatic pressurizing apparatus having improved cooling performance.

A hot isostatic pressurization device is a device for sintering or post-processing powder materials (metals, ceramics, etc.) and sintered compacts into high-density parts by using gas as a medium to pressurize under hydrostatic pressure conditions and at the same time maintain a high temperature.

Korean Patent Application Laid-Open No. 2007-0112718 discloses an isostatic pressurizing device (hereinafter referred to as "Patent Document 1").

The isostatic pressurization apparatus disclosed in Patent Document 1 includes an insulator forming a processing chamber for accommodating a workpiece, a pressure vessel covering the insulator, a heating device for heating the pressure vessel, and a pressure inside the pressure vessel A pressure medium supply device capable of supplying a medium is provided, wherein a pressure medium introduction space capable of introducing a pressure medium is provided between the heat insulator and the pressure vessel, and the processing chamber communicates with the pressure medium introduction space through a communication hole formed in the upper portion of the heat insulator. and the pressure medium supply device is configured to communicate with the pressure medium introduction space through the pressure medium introduction port formed at the bottom of the pressure vessel.

As described above, the isostatic pressurization device can perform compression molding in a state in which the workpiece is heated by heating the pressure medium by heating the pressure vessel with the heating device.

However, in the conventional isostatic pressurizing device, since the pressure vessel needs to be heated in order to heat the workpiece, it takes a long time to heat the workpiece, which in turn causes waste of heat loss and heats the workpiece to a uniform temperature. There is a problem in that it is difficult to heat.

In addition, the conventional isostatic pressurization device can only heat the pressure medium, but cannot perform a cooling function, so there is a problem in that the workpiece cannot be processed to have a dense structure through firing and hardening.

Korean Patent Publication No. 2007-0112718 (2007.11.27)

The present invention was devised to solve the above problems, and hot isostatic pressure capable of heating the object to be treated at high temperature and high pressure, cooling the heated gas inside the pressure vessel from the outside and circulating it to cool the object. An object of the present invention is to provide a pressurizing device.

In order to achieve the above object, a hot isostatic pressure pressurizing apparatus according to a preferred embodiment of the present invention includes a pressure vessel having an open side; a heating unit disposed inside the pressure vessel to heat the object to be processed; an insulator disposed between the pressure vessel and the heating unit; a base portion for closing the open side of the pressure vessel, an object to be treated, an outlet for discharging the gas stored in the pressure vessel, and an inlet for supplying gas to the pressure vessel; a first cooling circulation unit connected to the outlet and the inlet, cooling the heated gas inside the pressure vessel from the outside and circulating it to the inside of the pressure vessel; and a second cooling circulation unit connected to the first cooling circulation unit and cooling by selectively flowing at least a portion of the gas circulating in the first cooling circulation unit.

Here, when the temperature of the gas stored in the pressure vessel is above a specific temperature, the gas is cooled by the first cooling circulation unit, and when the temperature is lower than the specific temperature, the gas is cooled by the second cooling circulation unit.

Alternatively, if the temperature of the gas stored in the pressure vessel is above a specific temperature, the gas is cooled by the first cooling circulation unit, and when the temperature is lower than the specific temperature, the gas is cooled by the first cooling circulation unit and the second cooling circulation unit. have.

The base part is fastened to an open side of the pressure vessel, and supports the heating part and the insulator, the support frame having the outlet and the inlet; a lower cover inserted into the support frame to close the open side of the pressure vessel; and a tray provided on the lower cover and on which the object to be treated is mounted.

The lower cover may include an inlet passage communicating with the inlet and introducing the cooled gas flowing into the inlet into the pressure vessel.

The base part may further include a gas mixing part disposed between the tray and the lower cover and supplying a mixture of the gas inside the pressure vessel and the cooled gas flowing into the inflow passage.

The tray may include a flow hole formed through the center so that the mixed gas flows through the gas mixing unit and flows into the insulator.

The insulator may include: an insulator body provided with a penetrating center and disposed inside the heating unit; and an insulator cover fastened to one open side of the insulator body to close one side thereof.

Here, the insulator cover may include a; a discharge passage formed to discharge the gas stored in the insulator into the space between the insulator and the pressure vessel.

A discharge pipe connecting the discharge passage of the insulating cover and the discharge port of the support frame; may be made to further include.

The first cooling circulation unit may include: a first cooling passage connecting the outlet and the inlet of the support frame; a first flow part provided in the first cooling passage and forcibly flowing the gas discharged from the outlet into the inlet; and a first valve provided between the first flow part and the inlet in the first cooling passage to open and close the first cooling passage.

And, the second cooling circulation unit, a second cooling passage connecting the outlet and the inlet of the support frame; a storage tank provided in the second cooling passage and storing gas; a second valve provided between the outlet and the storage tank in the second cooling passage to open and close the second cooling passage; and a second flow part provided in the second cooling passage and forcibly flowing the gas stored in the storage tank to be introduced into the inlet.

Here, the pressure vessel, the center of the pressure vessel body formed through; and an upper cover which is fastened to one open side of the pressure vessel body and closes one side thereof.

In this case, the first cooling circulation unit may include: a first auxiliary cooling passage connecting the first cooling passage and the gas supply passage formed in the upper cover; and a first auxiliary valve for opening and closing the first auxiliary cooling passage.

In addition, the second cooling circulation unit may include: a second auxiliary cooling passage connecting the second flow portion and the gas supply passage formed in the upper cover; and a second auxiliary valve for opening and closing the second auxiliary cooling passage.

According to the hot isostatic pressurizing apparatus according to the present invention, the object to be treated can be cooled by cooling and circulating the heated gas inside the pressure vessel from the outside, thereby improving the mechanical properties of the object to be treated.

And, according to the present invention, the cooling rate can be adjusted, so that the mechanical properties of the object to be treated can be adjusted to a desired condition.

In addition, according to the present invention, it is possible to adjust the cooling rate, thereby obtaining the effect of shortening the overall process time.

1 is a cross-sectional view schematically showing a hot isostatic pressurizing apparatus according to an embodiment of the present invention;
2 is an exploded cross-sectional view schematically showing a hot isostatic pressurizing device according to an embodiment of the present invention;
3 is a view schematically showing an enlarged portion A of FIG. 1;
4 is a view schematically showing an enlarged portion B of FIG. 1;
5 is a perspective view schematically showing an insulator extracted from a hot isostatic pressurizing device according to an embodiment of the present invention;
6 is a view schematically showing another embodiment of the cooling circulation unit in the hot isostatic pressurization device according to an embodiment of the present invention;
7 is a cross-sectional view schematically showing an upper cover portion in the hot isostatic pressure pressurizing device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be construed to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, terms such as first, second, etc. may be used to describe various components, but the components may not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The term “and/or” may include a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in between. can be understood On the other hand, when an element is referred to as being “directly connected” or “directly connected” to another element, it may be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression may include the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and one or more other features It may be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary may be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, it is interpreted in an ideal or excessively formal meaning. it may not be

In addition, the following embodiments are provided to more completely explain to those with average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for more clear explanation.

A hot isostatic pressurization apparatus pressurizes a target object such as a sintered product (metal, ceramic, etc.) or a cast product at a high temperature of several hundred to several thousand degrees under a gas atmosphere with a high pressure of several tens to several hundred MPa at a high temperature higher than their recrystallization temperature. It is a device for sintering or post-processing into high-density parts. The hot isostatic pressing method is called HIP (Hot Isostatic Pressing). Here, various types of gases such as argon gas and nitrogen gas may be used as the gas to be used.

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

1 and 2 are cross-sectional and separated cross-sectional views schematically showing a hot isostatic pressurizing device according to an embodiment of the present invention, and FIGS. 3 and 4 are enlarged schematic views of parts A and B of FIG. 5 is a perspective view schematically showing an insulator extracted from the hot isostatic pressurizing device. And, FIG. 6 is a view schematically showing another embodiment of a cooling circulation unit in the hot isostatic pressurizing device, and FIG. 7 is a cross-sectional view schematically illustrating an upper cover part in the hot isostatic pressurizing device.

1 to 7, the hot isostatic pressure pressurization apparatus 100 according to an embodiment of the present invention includes a pressure vessel 200 with one open side, and a heating device disposed inside the pressure vessel to heat an object to be treated. The unit 300, the heat insulator 400 disposed between the pressure vessel 200 and the heating unit 300, and the open one side of the pressure vessel 200 are closed, the object to be treated is disposed, and the A base portion 500 having an outlet 511 through which the gas stored in the pressure vessel 200 is discharged and an inlet 512 for supplying gas to the pressure vessel 200 is formed, and one side is connected to the outlet 511 and A first cooling circulation unit 600 having the other side connected to the inlet 512 to cool the heated gas inside the pressure vessel 200 from the outside and circulate it to the inside of the pressure vessel 200, and the first A second cooling circulation unit 700 connected to the cooling circulation unit 600 and cooling by selectively flowing at least a portion of the gas circulating in the first cooling circulation unit 600 may be included.

The pressure vessel 200 includes a pressure vessel body 210 through which the center is formed, and an upper cover 220 fastened to the other open side of the pressure vessel body 210 to close the other side.

The pressure vessel body 210 has a center through which both sides are open, and the heating unit 300 is disposed therein.

The upper cover 220 is fastened to the pressure vessel body 210 so as to close the other side, ie, the upper part, from both open sides of the pressure vessel body 210 . In addition, a gas supply passage 221 communicating with the outside is formed in the upper cover 220 . The gas supply passage 221 is connected to the first auxiliary cooling passage 640 and the second auxiliary cooling passage 750 to be described below to receive the cooled gas and flow it into the pressure vessel 200 . provides

With this configuration, the object to be processed is disposed inside the pressure vessel 200 , and when the pressure vessel 200 is closed, gas is supplied to the inside of the pressure vessel 200 through the gas supply passage 221 . .

Then, the gas introduced into the pressure vessel 200 flows into the lower side of the pressure vessel 200 along the space between the insulator 400 and the pressure vessel 200, and then the insulator 400 ) is introduced into the insulator 400 through the lower open space.

The heating unit 300 is disposed inside the insulator 400 along the circumference of the inner surface of the insulator 400 . In addition, the heating unit 300 may be provided in plurality by being divided into multiple stages along the height direction of the insulator 400 . For example, as shown in the drawing, the heating unit 300 may be arranged in three stages. In addition, the plurality of heating units 300 may be temperature controlled differently from each other.

With this configuration, the plurality of heating units 300 control the temperature of the plurality of heating units 300 when the temperature of the gas is different from each other along the height of the insulator 400 inside the insulator 400 . By controlling each, it is possible to uniformly heat and maintain the gas temperature of the entire inside of the insulator 400 .

The base part 500 has an object disposed therein, is inserted into an open side of the pressure vessel 200 to close one side, and an outlet 511 through which the gas stored in the pressure vessel 200 is discharged. and an inlet 512 for supplying gas to the pressure vessel 200 is formed.

More specifically, the base part 500 is fastened to an open side of the pressure vessel 200 and supports the heating part 300 and the insulator 400 , and the outlet 511 and the inlet 512 . ) formed on the support frame 510, the lower cover 520 inserted into the support frame 510 to close the open side of the pressure vessel 200, and the lower cover 520 provided on the target to be processed It may include a tray 530 on which water is placed.

In addition, the base part 500 is disposed between the tray 530 and the lower cover 520 , and serves as an inflow passage 521 between the gas inside the pressure vessel 200 and the lower cover 520 . It may further include a gas mixing unit 540 for mixing and supplying the incoming cooled gas.

The support frame 510 is formed in the form of a ring through which the center is penetrated, and is fastened to an open side of the pressure vessel 200 to support the heating unit 300 and the insulator 400 .

In addition, the outlet 511 and the inlet 512 connected to the first cooling circulation unit 600 are formed in the support frame 510 . That is, the outlet 511 is a flow path through which the gas heated inside the pressure vessel 200 is discharged, and the inlet 512 is the first cooling circulation unit 600 through which the gas discharged through the outlet 511 is discharged. ) through which it is cooled from the outside and then flows in.

The lower cover 520 is inserted into the open center of the support frame 510 to close the open side of the pressure vessel 200 . In this case, a plurality of sealing members 522 may be provided around the lower cover 520 for sealing.

In addition, the lower cover 520 communicates with the inlet 512, and further includes an inflow passage 521 for introducing the cooled gas flowing into the inlet 512 into the inside of the pressure vessel 200. can be done

Here, the inflow passage 521 is opened to the center of the lower cover 520 and introduces the cooled gas flowing into the inlet 512 into the lower center of the pressure vessel 200 . At this time, the cooled gas introduced into the pressure vessel 200 through the inflow passage 521 is introduced into the gas mixing unit 540 .

The tray 530 is provided on the lower cover 520, and the object to be processed is seated thereon. That is, when the base part 500 is inserted into the support frame 510 in a state in which the object to be processed is seated on the tray 530 , the object to be processed may be disposed in the pressure vessel 200 . At this time, the tray 530 is disposed to be inserted to the inside of the heating unit (300). The tray 530 is preferably made of a heat insulating material.

In addition, the tray 530 may further include a flow hole 531 formed through the center so that the mixed gas flows through the gas mixing unit 540 and flows into the insulator 400 . .

The insulator 400 is made of a heat insulating material, and is disposed between the pressure vessel 200 and the heating unit 300 . That is, the heating unit 300 is disposed inside the insulator 400 and blocks the heating unit 300 to maintain the temperature heated by the heating unit 300 .

The insulator 400 is provided in the form of a ring through which the center is penetrated and is fastened to an insulator body 410 in which the heating unit 300 is disposed, and one open side of the insulator body 410 , It may be made of a thermal insulation cover 420 that closes one side. At this time, the tray 530 is inserted into the other open side of the insulator body 410 to place the object to be treated inside the heating unit 300 .

In addition, the insulator cover 420 includes a discharge passage 421 formed therethrough to discharge the gas stored in the insulator 400 into the space between the insulator 400 and the pressure vessel 200 . can be done by

In addition, the discharge passage 421 of the insulator cover 420 and the discharge port 511 of the support frame 510 may be connected by a discharge pipe 230 .

With this configuration, after the gas heated inside the insulator 400 is discharged to the discharge passage 421 of the insulator cover 420, the exhaust port of the support frame 510 along the discharge pipe 230 ( 511) and can be discharged.

The discharge passage 421, the discharge port 511, and the discharge pipe 230 may be formed in plurality for the flow of a large amount of gas.

The first cooling circulation unit 600 has one side connected to the outlet 511 and the other end connected to the inlet 512, and cools the heated gas inside the pressure vessel 200 from the outside to cool the pressure vessel. It is made to circulate into the interior of (200).

In addition, the second cooling circulation unit 700 is connected to the first cooling circulation unit 600 and selectively flows at least a portion of the gas circulating in the first cooling circulation unit 600 to further cool it. .

With this configuration, if the temperature of the gas stored in the pressure vessel 200 is above a specific temperature, the gas is cooled by the first cooling circulation unit 600, and when the temperature is lower than the specific temperature, the second cooling circulation unit 700 is used. to cool the gas.

Alternatively, if the temperature of the gas stored in the pressure vessel 200 is above a specific temperature, the gas is cooled by the first cooling circulation unit 600, and when the temperature is lower than the specific temperature, the first cooling circulation unit 600 and the second The gas may be cooled using all of the cooling circulation units 700 .

That is, if the gas is rapidly cooled at a high temperature, the object to be processed may be damaged by thermal shock. Therefore, cooling is performed using only the first cooling circulation unit 600 so as to gradually cool from the initial cooling temperature to a specific temperature. And, when the temperature is lowered to less than a specific temperature, cooling may be performed using the second cooling circulation unit 700 or both the first and second cooling circulation units 600 and 700 for rapid cooling.

To this end, the first cooling circulation unit 600 includes a first cooling passage 610 connecting the outlet 511 and the inlet 512 of the support frame 510 , and the first cooling passage 610 . ) and forcibly flowing the gas discharged from the outlet 511 to be introduced into the inlet 512 , and the first flow unit 620 in the first cooling passage 610 . ) and the first valve 630 provided between the inlet 512 and opening and closing the first cooling passage 610 may be included. Here, the first flow part 620 may be formed of a pump or a compressor.

With this configuration, when the heating and pressurizing process of the object to be processed is completed and the cooling process is performed, the first valve 630 is opened and then the first flow part 620 is operated to a specific temperature to perform the first cooling. When the gas flows into the flow path 610 , the gas heated inside the insulator 400 is discharged to the discharge flow path 421 of the insulator cover 420 , and passes through the discharge pipe 230 , primarily is cooled with

In addition, the primarily cooled gas is secondarily cooled while passing through the outlet 511 of the support frame 510 , and is tertiarily cooled while passing through the first cooling passage 610 . In this case, although not shown in the drawings, a heat exchanger may be further provided in the first cooling passage 610 to further cool the heat exchanger when passing through the first cooling passage 610 .

Then, the tertiarily cooled gas passes through the inlet 512 of the support frame 510 and the inflow passage 521 of the lower cover 520 and is cooled quaternly and then inside the pressure vessel 200 . is introduced into

Then, the quaternary cooled gas is introduced into the pressure vessel 200 and mixed with the heated gas in the pressure vessel 200 in the gas mixing unit 540 of the insulator 400 . flows inside

In this way, the gas heated inside the heat insulator 400 can be circulated outside the pressure vessel 200 to be cooled more quickly. In addition, it is possible to prevent rapid cooling by using only the first cooling circulation unit 600 up to a specific temperature, thereby preventing thermal shock from occurring.

The second cooling circulation unit 700 includes a second cooling passage 710 connecting the outlet 511 and the inlet 512 formed in the support frame 510 , and the second cooling passage 710 . A storage tank 740 provided and gas is stored therein, and a second provided between the outlet 511 and the storage tank 740 in the second cooling passage 710 to open and close the second cooling passage 710 . A valve 730 and a second flow part 720 provided in the second cooling passage 710 and forcibly flowing the gas stored in the storage tank 740 to be introduced into the inlet 512 may be included. have. Here, the second flow unit 720 may be formed of a pump or a compressor.

With this configuration, when the temperature inside the pressure vessel 200 is cooled to a specific temperature through the first cooling circulation unit 600 , the second valve 730 is opened and then the second flow unit 720 . to flow the gas into the second cooling passage 710 . At this time, the gas introduced into the second cooling passage 710 is stored in the storage tank 740 , and the cooled gas stored in the storage tank 740 is transferred to the second cooling passage 710 and the second cooling passage 710 . 1 flows into the cooling passage 610 and flows into the pressure vessel 200, so that it can be cooled faster.

At this time, by opening the first valve 630 to pass both the first cooling circulation unit 600 and the second cooling circulation unit 700 to cool the gas, or by closing the first valve 630 to The gas may be cooled by passing only the second cooling circulation unit 700 .

That is, at least one of the first cooling circulation unit 600 and the second cooling circulation unit 700 is circulated by opening and closing the first valve 630 and the second valve 730 according to a desired cooling condition. to cool the gas.

Furthermore, the first cooling circulation unit 600 includes a first auxiliary cooling passage 640 connecting the first cooling passage 610 and the gas supply passage 221 formed in the upper cover 220, and A first auxiliary valve 652 for opening and closing the auxiliary cooling passage 640 may be further included.

In addition, the second cooling circulation unit 700 includes a second auxiliary cooling passage 750 connecting the second flow portion 720 and the gas supply passage 221 formed in the upper cover 220 , and the second cooling passage 750 . A second auxiliary valve 762 for opening and closing the second auxiliary cooling passage 750 may be further included.

In the first cooling passage 610 , the first cooling passage 610 and the first auxiliary cooling passage 640 are provided at the rear end to which the first addition is provided to open and close the first cooling passage 610 . The auxiliary valve 651 and the second cooling passage 710 in the second cooling passage 710 are provided at the rear end to which the second cooling passage 710 and the second auxiliary cooling passage 750 are connected to separate the second cooling passage 710 . A second additional auxiliary valve 651 to open and close may be further provided.

With this configuration, by controlling the opening and closing of the first auxiliary valve 652 and the first additional auxiliary valve 651, only the first cooling passage 610 is opened so that gas flows only through the inlet 512, or the Only the first auxiliary cooling passage 640 is opened so that gas is introduced only into the gas supply passage 221 of the upper cover 220 , or the second cooling passage 640 is opened so that gas is introduced into the inlet 512 and the gas supply passage 221 . Both the first cooling passage 610 and the first auxiliary cooling passage 640 may be opened.

In addition, by controlling the opening and closing of the second auxiliary valve 762 and the second additional auxiliary valve 761 , only the second cooling passage 710 is opened so that gas flows only through the inlet 512 , or the upper cover Only the second auxiliary cooling passage 750 is opened so that gas is introduced only into the gas supply passage 221 of 220 , or the second cooling is performed so that gas is introduced into the inlet 512 and the gas supply passage 221 . Both the flow path 710 and the second auxiliary cooling flow path 750 may be opened.

As another example, the first auxiliary valve and the second auxiliary valve may be formed of a three-way valve.

In this case, the first auxiliary valve is provided at a portion where the first cooling passage 610 and the first auxiliary cooling passage 640 are connected, and the second auxiliary valve is connected to the second cooling passage 710 and The second auxiliary cooling passage 750 is provided at a connection portion to control the flow direction of the gas.

With this configuration, the first auxiliary valve and the second auxiliary valve are opened and closed according to a desired cooling condition to open and close the first cooling passage 610 and the first auxiliary cooling passage 640 or the second cooling passage 710 . and circulating at least one of the second auxiliary cooling passages to cool the gas.

In this way, various cooling circulation passages are formed through the first cooling circulation unit 600 and the second cooling circulation unit 700 to satisfy various cooling conditions and perform a cooling process.

Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto, and the present invention is within the technical spirit of the present invention. It is clear that the transformation or improvement is possible by the person.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific protection scope of the present invention will be made clear by the appended claims.

100: hot water pressure pressurization device 200: pressure vessel
210: pressure vessel body 220: upper cover
230: discharge pipe 300: heating part
400: insulation body 410: insulation body
420: insulation cover 500: base portion
510: support frame 520: lower cover
530: tray 540: gas mixing unit
600: first cooling circulation unit 610: first cooling passage
620: first flow part 630: first valve
640: first auxiliary cooling passage 700: second cooling circulation unit
710: second cooling passage 720: second flow part
730: second valve 740: storage tank
750: second auxiliary cooling passage

Claims (15)

One side of the open pressure vessel;
a heating unit disposed inside the pressure vessel to heat the object to be processed;
an insulator disposed between the pressure vessel and the heating unit;
a base portion for closing the open side of the pressure vessel, an object to be treated, an outlet for discharging the gas stored in the pressure vessel, and an inlet for supplying gas to the pressure vessel;
a first cooling circulation unit connected to the outlet and the inlet, cooling the heated gas inside the pressure vessel from the outside and circulating it to the inside of the pressure vessel; and
a second cooling circulation unit connected to the first cooling circulation unit and cooling by selectively flowing at least a portion of the gas circulating in the first cooling circulation unit;
A hot hydrostatic pressurizing device comprising a.
According to claim 1,
If the temperature of the gas stored in the pressure vessel is above a specific temperature, the gas is cooled by the first cooling circulation unit, and when the temperature is lower than the specific temperature, the gas is cooled by the second cooling circulation unit.
According to claim 1,
When the temperature of the gas stored in the pressure vessel is above a specific temperature, the gas is cooled by the first cooling circulation unit, and when the temperature is lower than the specific temperature, the gas is cooled by the first cooling circulation unit and the second cooling circulation unit. hydrostatic pressurization device.
According to claim 1,
The base part,
a support frame fastened to an open side of the pressure vessel, supporting the heating unit and the insulator, and having the outlet and the inlet;
a lower cover inserted into the support frame to close the open side of the pressure vessel; and
a tray provided on the lower cover and on which the object to be treated is seated;
Hot isostatic pressure pressurizing device comprising a.
5. The method of claim 4,
the lower cover,
an inlet passage communicating with the inlet and introducing the cooled gas flowing into the inlet into the pressure vessel;
Hot isostatic pressure pressurizing device comprising a.
6. The method of claim 5,
The base part,
a gas mixing unit disposed between the tray and the lower cover and supplying a mixture of the gas inside the pressure vessel and the cooled gas flowing into the inflow passage;
Hot isostatic pressure pressurization device, characterized in that it further comprises.
7. The method of claim 6,
The tray is
a flow hole formed through the center so that the mixed gas flows through the gas mixing unit and flows into the insulator;
Hot isostatic pressure pressurizing device comprising a.
5. The method of claim 4,
The insulator is
an insulator body provided in a form through which the center is penetrated and the heating unit is disposed inside; and
an insulator cover fastened to one open side of the insulator body to close one side;
Hot isostatic pressure pressurizing device comprising a.
9. The method of claim 8,
The insulation cover,
a discharge passage formed through the insulator to discharge the gas stored in the insulator into a space between the insulator and the pressure vessel;
Hot isostatic pressure pressurizing device comprising a.
10. The method of claim 9,
a discharge pipe connecting the discharge passage of the insulator cover and the discharge port of the support frame;
Hot isostatic pressure pressurization device, characterized in that it further comprises.
5. The method of claim 4,
The first cooling circulation unit,
a first cooling passage connecting the outlet and the inlet of the support frame;
a first flow part provided in the first cooling passage and forcibly flowing the gas discharged from the outlet into the inlet; and
a first valve provided between the first flow part and the inlet in the first cooling passage to open and close the first cooling passage;
Hot isostatic pressure pressurizing device comprising a.
5. The method of claim 4,
The second cooling circulation unit,
a second cooling passage connecting the outlet and the inlet of the support frame;
a storage tank provided in the second cooling passage and storing gas;
a second valve provided between the outlet and the storage tank in the second cooling passage to open and close the second cooling passage; and
a second flow part provided in the second cooling passage and forcibly flowing the gas stored in the storage tank to be introduced into the inlet;
Hot isostatic pressure pressurizing device comprising a.
13. The method of claim 11 or 12,
The pressure vessel is
a pressure vessel body through which the center is formed; and
an upper cover fastened to one open side of the pressure vessel body to close one side;
Hot isostatic pressure pressurizing device comprising a.
14. The method of claim 13,
The first cooling circulation unit,
a first auxiliary cooling passage connecting the first cooling passage and the gas supply passage formed in the upper cover; and
a first auxiliary valve for opening and closing the first auxiliary cooling passage;
Hot isostatic pressure pressurization device, characterized in that it further comprises.
14. The method of claim 13,
The second cooling circulation unit,
a second auxiliary cooling passage connecting the second flow portion and the gas supply passage formed in the upper cover; and
a second auxiliary valve for opening and closing the second auxiliary cooling passage;
Hot isostatic pressure pressurization device, characterized in that it further comprises.

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