KR20130050190A - Cylindrical double hull vessel withstanding the high internal pressure - Google Patents

Cylindrical double hull vessel withstanding the high internal pressure Download PDF

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Publication number
KR20130050190A
KR20130050190A KR1020110115404A KR20110115404A KR20130050190A KR 20130050190 A KR20130050190 A KR 20130050190A KR 1020110115404 A KR1020110115404 A KR 1020110115404A KR 20110115404 A KR20110115404 A KR 20110115404A KR 20130050190 A KR20130050190 A KR 20130050190A
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KR
South Korea
Prior art keywords
container
inner tube
pressure
gas
space
Prior art date
Application number
KR1020110115404A
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Korean (ko)
Inventor
김을년
윤기영
김일웅
Original Assignee
현대중공업 주식회사
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Priority to KR1020110115404A priority Critical patent/KR20130050190A/en
Publication of KR20130050190A publication Critical patent/KR20130050190A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The present invention relates to a cylinder-type dual structure pressure vessel, the lower container having a cylindrical shape on the upper surface of the lower plate and having the same height and having a lower inner tube and a lower appearance integrally; An intermediate container formed integrally with at least one intermediate inner tube and an intermediate outer layer formed on the upper portion of the lower container and having the same diameter as the lower inner tube and the lower outer tube; The upper inner tube and the upper outer tube formed with the same diameter as the intermediate inner tube and the middle outer tube are stacked on the upper portion of the intermediate container and are integrally formed, and the upper inner tube and the upper portion of the upper outer space are formed between the inner tube and the outer portion. And an upper container in which an upper plate having a gas injection hole is integrally mounted to supply gas to the accommodation space of the inner tube. An annular reinforcement member mounted on each of the spaces to which the container is coupled and having a gas passage formed therein so as to allow gas to be received in the space to pass therethrough; And a control unit.
According to the present invention, by constructing a pressure-resistant container of a dual structure that withstands high pressure there is an effect that can be safely transported while shipping a lot of natural gas.

Description

Cylindrical double hull vessel withstanding the high internal pressure

The present invention relates to a pressure vessel that has a large tank capacity and withstands high pressure, and more specifically, a natural gas, propane gas, etc., which is larger than a conventional pressure vessel that can be liquefied at room temperature or minus 40 to 100 ° C. at high pressure. In order to provide a large pressure-resistant container, the present invention relates to a double-cylinder-type pressure-resistant container reinforced with an annular reinforcement and an annular bulkhead.

Generally, pressure vessels used for CNG (Compressed Natural Gas) and PNG (Pressed Natural Gas) compress natural gas or propane gas in gas state at high pressure (125 ~ 250 bar) at room temperature or low temperature (40 ~ 100 ℃). It is made in liquid state and greatly reduced in volume to provide convenience when storing in a container.

In other words, the conventional pressure vessel is made of a method of winding the pipe to the pulley as shown in FIG. 1 or by connecting the small independent cylindrical tanks to each other and storing the compressed natural gas.

At this time, in the case where the pressure-resistant container has a single structure (one layer), when the internal pressure of the high pressure is applied and the radius of the cylinder is large, a thick plate is used to withstand high stress in the circumferential direction. When creating a high pressure is required and there was a problem that can not be made if thicker than necessary.

In addition, in the case of a thick plate, a number of welding operations are required to fill the weld metal in the weld area when the welded structure is made. .

In order to overcome the above problems, the current oil majors are constantly making efforts at many companies abroad (EnerSEA, TransCanada GTM, Coselle, Knutsen, ExxonMobil) to develop the shape of the pressure-resistant container well.

Korean Patent Publication No. 10-0499230 Korean Patent Publication No. 10-1034534

The present invention has been made in order to solve the above problems, it is an object to configure a pressure-resistant container of a dual structure that withstands high pressure so that it can be safely transported while shipping a lot of natural gas.

In addition, the pressure vessel is formed in a dual structure to not only produce a large-capacity high-pressure container, but also to configure the pressure vessel in a thin plate is easier to manufacture than a pressure vessel of a single structure and to improve the fatigue strength.

In order to achieve the above object, the lower container having the same height in a cylindrical shape on the upper surface of the lower plate and having a lower inner tube and a lower appearance having different diameters integrally; An intermediate container formed integrally with at least one intermediate inner tube and an intermediate outer layer formed on the upper portion of the lower container and having the same diameter as the lower inner tube and the lower outer tube; An upper inner tube and an upper outer tube formed with the same diameter as the intermediate inner tube and the middle outer tube are stacked on the upper portion of the intermediate container and are integrally formed. And an upper container in which an upper plate having a gas injection hole is integrally mounted to supply gas to the accommodation space of the inner tube. An annular reinforcement member mounted on each of the spaces to which the container is coupled and having a gas passage formed therein so as to allow gas to be received in the space to pass therethrough; And a control unit.

According to the present invention, by constructing a pressure-resistant container of a dual structure that withstands high pressure there is an effect that can be safely transported while shipping a lot of natural gas.

In addition, by forming a pressure-resistant container in a double structure can not only produce a large-capacity high-pressure container, but also composed of a pressure-resistant container with a thin plate is easier to manufacture than a pressure-resistant container of a single structure and has an effect of improving fatigue strength.

1 is a view showing a conventional pressure-resistant container.
Figure 2 is a front view showing a dual structure pressure-resistant container in the form of a cylinder according to the present invention.
Figure 3 is a front cross-sectional view showing a dual structure pressure-resistant container in the form of a cylinder according to the present invention.
Figure 4 is an exploded cross-sectional view showing a cylinder-type dual structure pressure vessel according to the present invention.
5 and 6 are perspective views showing a torus reinforcing member constituting the pressure-resistant container of the dual structure of the cylinder form according to the present invention.
7 to 7 is a perspective view showing the installation process of the cylinder-type dual-structure pressure-resistant container according to the present invention.
8 is a view showing another embodiment of the cylinder-type dual structure pressure vessel according to the present invention.
9 to 11 is a planar cross-sectional view showing the operating state of the gas pressure of the cylinder-type dual structure pressure vessel according to the present invention.

Hereinafter, with reference to the accompanying drawings, the configuration of the present invention, Figure 2 is a front view showing a dual-structure pressure-resistant container in the form of a cylinder, Figure 3 is a dual-structure pressure-resistant container in the form of a cylinder according to the present invention 4 is an exploded cross-sectional view showing a cylinder-type dual structure pressure-resistant container according to the present invention, and FIGS. 5 and 6 are perspective views showing a torus reinforcing member constituting the cylinder-type dual structure pressure-resistant container according to the present invention. 7 to 7 are perspective views showing the installation process of the cylinder-type dual structure pressure vessel according to the present invention, and FIG. 8 is a view showing another embodiment of the cylinder-type dual structure pressure resistant container according to the present invention. 11 is a planar cross-sectional view showing the operating state of the gas pressure of the cylinder-type dual structure pressure vessel according to the present invention.

The cylinder-type dual structure pressure-resistant container 10 of the present invention is formed in the form of a double tube and the lower container 20 is installed at the bottom, at least one laminated on the upper portion of the lower container 20 and the lower container 20 The intermediate container 30 integrally formed, the upper container 40 integrally formed with the intermediate container 30 while being stacked on top of the intermediate container 30, and the container 20, 30, 40 Between the annular bulkhead 51 and the annular reinforcing member 55 respectively mounted therebetween, and the inner pipes 22, 32, 42 and the exterior 24, 34, 44 constituting the vessels 20, 30, 40. It consists of the space part 60 formed, and the accommodating space part 70 formed in the said inner pipe | tube 22, 32, 42.

The lower container 20 has a lower plate 26 formed with a predetermined thickness and area, a lower inner tube 22 having a cylindrical shape mounted on an upper surface of the lower plate 26, and an upper surface of the lower plate 26. The lower outer tube 24, which is mounted and formed to the same height while having a diameter larger than the lower inner tube 22, is integrally formed.

That is, the lower container 20 is formed on the upper surface of the lower plate 26 integrally formed in the lower inner tube 22 of the cylindrical shape, the diameter is larger than the lower inner tube 22 on the upper surface of the lower plate 26 and the same height The lower appearance 24 is formed integrally with.

In addition, a space portion 60 and a receiving space portion 70 are formed between the lower inner tube 22 and the lower outer tube 24 and inside the lower inner tube 22 to accommodate and store gas.

At this time, the lower plate 26 is preferably formed in a disk shape corresponding to the lower inner tube 22 and the lower outer tube 24, and the lower inner tube 22 and the lower outer tube 24 are formed in a cylindrical shape. To withstand pressure and produce smoothly.

The intermediate container 30 integrally formed on the upper portion of the lower container 20 has the same diameter as the lower inner tube 32 and the lower inner tube 24 and the intermediate inner tube 32 formed with the same diameter as the lower inner tube 22. It consists of an intermediate appearance 34.

At this time, the intermediate container 30 is mounted at least one or more according to the installation place of the dual structure pressure-resistant container 10 in the form of a cylinder.

That is, the intermediate container 30 is integrally formed while stacking the intermediate inner tube 32 on the upper portion of the lower inner tube 22 and the intermediate container 34 is laminated on the upper portion of the lower outer tube 24. It is formed integrally with 20).

In addition, a space portion 60 and a receiving space portion 70 are formed between the intermediate inner tube 32 and the intermediate outer tube 34 and inside the intermediate inner tube 32 to accommodate and store gas.

The upper container 40 integrally formed on the upper portion of the intermediate container 30 has an upper inner tube 42 formed with the same diameter as the intermediate inner tube 32 and the same diameter as the intermediate outer tube 34. It consists of an upper outer surface 44, and the upper inner tube 42 and the upper plate 46 formed integrally on the upper outer surface (44).

That is, the upper container 40 is formed by integrally stacking the upper inner pipe 42 and the upper outer pipe 44 on the intermediate inner pipe 32 and the intermediate outer pipe 34 constituting the intermediate container 30, respectively, and then the upper part. The upper plate 46 is integrally formed on the inner tube 42 and the upper outer housing 44.

In addition, the space 60 and the accommodation space 70 are formed between the upper inner pipe 42 and the upper exterior 44 and inside the upper inner pipe 42 to accommodate and store gas.

In addition, a gas injection hole 48 is formed in the upper plate 46 to inject gas into the space 60 and the accommodation space 70.

The annular bulkhead 51 and the annular reinforcing member 55 respectively mounted between the vessels 20, 30, 40 are respectively mounted between the vessels 20, 30, 40, and the vessels 20, 30, 40), and to strengthen the strength, and serves as a passage for the gas located in the upper and lower portion to move.

That is, the annular reinforcement member 55 has a plurality of gas passages 52 formed along a circumference while being formed in a hollow disc shape as shown in FIG. It keeps the internal pressure constant while fixing the connection.

In addition, the annular partition wall 51 is formed in a disk shape as shown in FIG. 6, and a gas passage 52 is formed along a circumference of the space 60, and at least two connection passages 54 are formed therein. Is formed, it is to serve to maintain a constant internal pressure while partitioning the inside of the cylinder-type dual structure pressure-resistant container (10).

And in the present invention, the annular bulkhead 51 and the annular reinforcement 55 is equipped with an annular reinforcement 55 provided with a gas passage 52 between the vessel 20, 30, as shown in Figure 4, An annular partition wall 51 provided with a gas passage 52 and a connection passage 54 is alternately mounted between the vessels 30. Another arrangement example is a method in which two or more annular stiffeners 55 are disposed within a range that structural strength allows, and then the annular bulkhead 51 is disposed.

At this time, the annular bulkhead 51 and the annular reinforcement 55 reveals that it can be supported by the support portion 80 mounted to the container 20, 30, 40 as shown in FIG.

Referring to the embodiment of the cylinder-type dual-structure pressure-resistant container configured as described above are as follows.

First, a lower plate 26 formed with a predetermined thickness and area, a lower inner tube 22 having a cylindrical shape mounted on an upper surface of the lower plate 26, and a lower inner tube 22 mounted on an upper surface of the lower plate 26. A lower container 20 is formed integrally with the lower exterior 24 formed at the same height while being formed with a larger diameter.

And an intermediate inner tube 32 formed on the upper portion of the lower container 20 with the same diameter as the lower inner tube 22 and an intermediate outer portion 34 formed with the same diameter as the lower outer tube 24. After the container 30 is laminated, it is integrally formed by welding or the like.

At this time, the annular reinforcement member 55 is formed in the space portion 60 of the lower container 20 and the intermediate container 30 along which a gas passage 52 is formed.

Next, the intermediate inner tube 32 and the intermediate outer tube 34 are continuously mounted on the intermediate container 30 to be integrally formed by welding or the like.

In this case, a gas passage 52 is formed between the intermediate container 30 and the intermediate container 30 along the circumference of the space 60, and at least two connection passages 54 are formed therein. The annular ring partition 51 and the annular reinforcing member 55 in which the gas passage 52 is formed are alternately mounted.

And an upper inner tube 42 formed on the upper portion of the intermediate inner tube 32 and the intermediate outer tube constituting the intermediate container 30 with the same diameter as the intermediate inner tube 32, and the intermediate outer tube 34. An upper container 44 formed of the same outer diameter and the upper inner tube 42 and the upper container consisting of an upper plate 46 integrally formed at the upper portion and provided with a gas injection hole 48. If the 40 is formed integrally, the assembling of the cylinder-type dual structure pressure-resistant container 10 is completed.

Here, the assembling order of the cylinder-type dual structure pressure-resistant container reveals that it can be configured differently from the above.

Next, look at the state of use of the cylinder-type dual-structure pressure-resistant container configured as described above are as follows.

First, the assembly is transferred to a position to be installed to the cylinder-structured dual-structure pressure-resistant container 10 is installed and then fixed.

And a valve system 90 having a pipe 92 having a predetermined length in the gas injection hole 48, a valve 94 and a pressure gauge 96 mounted on the pipe 92. Pressure gauges 97 and 98 for measuring pressure are mounted at positions of the space part 60 and the receiving part 70.

Next, a low pressure gas may be filled in the space 60 through the pipe 92, and a high pressure gas may be filled in the accommodation space 70.

To further explain this, FIG. 9 illustrates a pressure state when a high pressure gas is accommodated in the accommodation space 70, and FIG. 10 illustrates a low pressure gas in the space 60. 10 illustrates a pressure state when receiving, and FIG. 10 illustrates a state in which a gas of low pressure is received in the space 60 and a gas of high pressure is received in the space 70.

That is, the high-pressure gas accommodated in the accommodation space 70 will not only reduce the pressure transmitted to the outside by the low-pressure gas located in the space 60, but will also be able to obtain a buffering effect. .

In the above description with reference to the accompanying drawings, the cylinder-type dual structure pressure vessel described in the present invention mainly focused on a specific shape and direction, the present invention can be variously modified and changed by those skilled in the art, such modifications and changes are It should be construed as being included in the scope of the invention.

10: cylinder type double pressure vessel.
20: upper container, 30: intermediate container,
40: lower container, 51: toric bulkhead,
55: torus reinforcement material, 60: space part,
70: accommodation space portion, 80: support portion,
90: valve system.

Claims (4)

A lower container 20 having a cylindrical shape on the upper surface of the lower plate 26 and having a lower inner tube 22 and a lower outer tube 24 having different diameters;
An intermediate container formed integrally with the at least one intermediate inner tube 32 and the intermediate outer tube 34 having the same diameter as the lower inner tube 22 and the lower outer tube 24 are stacked on the lower container 20. 30;
The upper inner tube 42 and the upper outer tube 44 having the same diameter as the intermediate inner tube 32 and the intermediate outer tube 34 are stacked on the upper portion of the intermediate container 30 and are integrally formed, and the upper inner tube ( At the upper part of the inner tube 22, 32, 42 and the outer tube 24, 34, 44, the upper portion of the upper tube 44 and the inner tube 22, 32, 42 are accommodated. An upper container 40 in which an upper plate 46 having a gas injection hole 48 is integrally mounted to supply gas to the space part 70;
Toroidal reinforcement 55 is mounted in the space portion 60 to which the vessels 20, 30, 40 are coupled, and a gas passage 52 is formed around the periphery so that gas contained in the space portion 60 can pass therethrough. ); Dual structure pressure-resistant container of the cylinder type, characterized in that consisting of.
The method according to claim 1,
The annular reinforcing member 55 is a circular annular plate having a gas passage 52 and a connecting passage 54 so as to partition the space 60 and the accommodation space 70 so that the gas contained therein can move. Cylinder-type dual structure pressure-resistant container, characterized in that formed by the partition wall (51).
The method according to claim 1 or 2,
The support part 80 protrudes in the container 20, 30, 40 to which the torus partition 51 and the torus reinforcement 55 are mounted so that it may be fixed while supporting the torus partition 51 and the torus reinforcement 55. Dual structure pressure-resistant container of the cylinder type, characterized in that formed.
The method according to claim 1,
The upper plate 46 is equipped with a valve system 90 having a pipe 92, a valve 94, and a pressure gauge 96. The pressure is measured in the space 60 and the accommodation space 70. Double-pressure pressure-resistant container of the cylinder type, characterized in that the pressure gauge (97, 98) is mounted.
KR1020110115404A 2011-11-07 2011-11-07 Cylindrical double hull vessel withstanding the high internal pressure KR20130050190A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150131504A (en) * 2014-05-15 2015-11-25 삼성중공업 주식회사 Double Shell Pressure Vessel And Equalizing Method for the Same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150131504A (en) * 2014-05-15 2015-11-25 삼성중공업 주식회사 Double Shell Pressure Vessel And Equalizing Method for the Same

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