KR101975271B1 - Dually adiabatic connected structure pipe - Google Patents

Dually adiabatic connected structure pipe Download PDF

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Publication number
KR101975271B1
KR101975271B1 KR1020170091921A KR20170091921A KR101975271B1 KR 101975271 B1 KR101975271 B1 KR 101975271B1 KR 1020170091921 A KR1020170091921 A KR 1020170091921A KR 20170091921 A KR20170091921 A KR 20170091921A KR 101975271 B1 KR101975271 B1 KR 101975271B1
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KR
South Korea
Prior art keywords
pipe
tube
heat insulating
outer tube
flange
Prior art date
Application number
KR1020170091921A
Other languages
Korean (ko)
Other versions
KR20190009935A (en
Inventor
차건종
김대성
Original Assignee
(주)대창솔루션
주식회사 크리오스
주식회사 항만엘엔지
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Priority to KR1020170091921A priority Critical patent/KR101975271B1/en
Publication of KR20190009935A publication Critical patent/KR20190009935A/en
Application granted granted Critical
Publication of KR101975271B1 publication Critical patent/KR101975271B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
    • F16L59/184—Flanged joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/141—Arrangements for the insulation of pipes or pipe systems in which the temperature of the medium is below that of the ambient temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/065—Arrangements using an air layer or vacuum using vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Thermal Insulation (AREA)

Abstract

In the double insulation joint structure pipe of the present invention, when the double heat insulation connection inner pipe and the double heat insulation connection inner pipe are fastened to each other between the first flange and the second flange, the radius of the first insulation outer appearance from the concentric axis is larger than the second insulation appearance, So that the radius of the first heat insulating inner tube is smaller than that of the second heat insulating inner tube.

Description

DUALLY ADIABATIC CONNECTED STRUCTURE PIPE < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double vacuum pipe, and more particularly, to a double heat insulation connection pipe and a connection pipe which reduce a thermal conductivity by forming a vacuum on a flange.

Cryogenic liquids such as liquefied nitrogen, liquid oxygen, liquid hydrogen, liquid helium and the like generally have a temperature of at most 100K under atmospheric pressure and are stored in a container capable of maintaining such a cryogenic condition.

In order to transport the cryogenic liquid stored in the storage container to the transfer container or to transfer it from the transfer container to another storage container, a transfer pipe is required to transfer the cryogenic liquid between the storage container and the transfer container.

A known vacuum transfer tube is composed of an inner tube and an outer tube that surrounds the inner tube and forms a vacuum layer between the inner tube and the inner tube. The vacuum layer prevents heat transfer such as convective heat transfer and air heat conduction between the inner tube and the outer tube so that the cryogenic liquids delivered to the inner tube can maintain a cryogenic temperature.

However, since the conveyance pipe is a double pipe, when the conveyance pipe is installed horizontally, the inner pipe is deflected in the direction of gravity according to its length, and when it is installed vertically, the pipe bending The inner tube may be deviated from the center of the outer tube due to the external force. In this case, an adverse effect may occur that the heat penetration becomes active on the side where the inner tube faces toward the outer appearance.

In addition, for long-distance transmission of cryogenic liquids, a special device for the connection between the transfer tubes is required, and a rigid structure is further required while reducing the thermal conductivity.

Korean Patent Publication No. 2015-0095514

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide a vacuum double tube structure having an inner tube to which a cryogenic liquid is actually transferred and an outer tube that surrounds the inner tube and forms a vacuum layer therebetween, And it is an object of the present invention to provide a vacuum double-adiabatic connection structure pipe for cryogenic liquid transfer capable of minimizing the transfer.

In order to achieve the above-described object, the present invention provides a display device comprising: a first appearance; A first inner tube formed concentrically with the first outer tube; A first heat insulating inner tube positioned between the first outer tube and the first inner tube; A first heat insulating inner pipe positioned between the first heat insulating inner pipe and the first outer pipe; The first outer tube, the first inner tube, the first outer tube, and the first inner tube are fixed to the first flange, the first outer tube, the other inner tube is opened, and the first outer tube, And the other side is interconnected and the first flange is closed from the first external appearance to the first external heat pipe and is opened from the first external heat pipe to the second internal heat pipe and closed from the second internal heat pipe to the first internal pipe, .

Also, a second appearance; A second inner tube formed concentrically with the second outer tube; A second heat insulating inner pipe positioned between the second outer pipe and the second inner pipe; A second heat insulating inner pipe positioned between the second heat insulating inner pipe and the second outer pipe; The second outer tube and the second inner tube are fixed to one side of the second flange while the other side of the second outer tube and the second inner tube is opened and one side of the second inner tube and the second inner tube is fixed to the other side of the second flange And the other side of the second heat insulating inner tube and the second heat insulating inner tube are mutually connected and the second flange is closed from the second outer heat pipe to the second heat insulating outer tube and is opened from the second heat insulating outer tube to the second heat insulating inner tube, And the inner tube is closed from the inner tube to the second tube, and a double heat insulating connection pipe is formed by the combination of the double heat insulating connection inner pipe and the double heat insulating inner pipe.

According to the present invention, heat transfer from the inner pipe through which the cryogenic liquid is actually transferred to the outside through the outer pipe is actually blocked. The formation of the first and second heat insulating portions and the first and second heat insulating portions in the longitudinal direction provides a sufficiently long heat transfer time and a sufficient heat transfer.

As a result, it is possible to minimize the invasion of the outside normal temperature to the cryogenic temperature of the inner tube.

1 is a cross-sectional view of a double insulation connection structure according to the present invention.
Fig. 2 is an exploded view of discrete components of the double insulation connection structure according to the present invention.
FIG. 3 is a view showing an assembly of individual components of the double insulation connection structure according to the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a double adiabatic connection structure for connecting dual pipes composed of an outer tube 100 and an inner tube 200 to each other. The double insulation connection structure is composed of a double insulation connection appearance and a double insulation connection inner pipe, which can be coupled through a flange or the like to integrate the insulation connection appearance and the double insulation connection inner pipe together. First, the double heat insulating connection exterior comprises a first external heat pipe 10, a first external heat pipe 40 having a double pipe shape of a first internal pipe 20 concentric with the first external pipe and a longitudinal extension of the heat insulating portion, (30). The first adiabatic outer tube (40) is located between the first outer tube and the first inner tube. The first outer tube 10, the first inner tube 20, the first outer tube 40 and the first inner tube 30 are fixed to one side of the first flange 50. Further, the other side of the first outer tube and the first inner tube is opened, and the other side of the first heat-insulating tube (40) and the first inner tube (30) are interconnected. The first heat insulating inner tube 30 has a first radius from the concentric axis of the double tube or the first inner tube and the second inner tube, and the radius of the first heat insulating outer tube 40 is variable from the concentric axis. More specifically, one side of the first adiabatic outer tube and the first inner tube is fixedly coupled to the first flange, while the other side has the same radius as the first radius, And may be a position farthest from the first flange as an end of the first heat insulating inner tube and the first heat insulating inner tube. As the distance from the first flange increases, the distance between the first external heat pipe and the first internal pipe is narrowed or a certain distance may be maintained between the first external pipe and the first internal pipe. The first inner tube from the concentric axis has the same radius as the inner tube, and the first outer tube from the concentric axis is larger than the outer tube by the thickness of the outer tube.

This double insulation connection appearance is used in combination with the double insulation connection inner pipe.

The double insulated connection inner pipe includes a second outer pipe (12), a second inner pipe (22) concentric with the second outer pipe and a second outer pipe (42) forming a longitudinal extension of the heat pipe, 32). The second adiabatic outer tube (42) is located between the second outer tube and the second inner tube. The second outer tube 22 and the second inner tube 22 are fixed to one side of the second flange 50. On the other hand, the second heat insulating outer pipe 42 and the second heat insulating inner pipe 32 are fixed to the other side of the second flange. Further, the other side of the second outer tube and the second inner tube is opened, and the other side of the second heat-insulating tube 42 and the second heat-insulating tube 32 are interconnected. The second insulated inner tube 32 has a second radius from the concentric axis of the double tube or the second inner tube and the second inner tube and the second insulated outer tube 42 has a radius varying from the concentric axis. More specifically, one side of the second adiabatic outer tube and the second inner tube is fixedly coupled to the second flange, while the other side has the same radius as the second radius so that they are connected to each other. As the distance from the second flange increases, the distance between the second external heat pipe and the second internal pipe becomes narrower or a certain distance may be maintained between the second external pipe and the second internal pipe. The second inner tube from the concentric axis has the same radius as the inner tube, and the second outer tube from the concentric axis is larger than the outer tube by the thickness of the outer tube.

The double insulated connection appearance and the double insulated connection inner pipe are designed so that when the first flange and the second flange are fastened to each other, the radius of the first insulation appearance from the concentric axis is larger than the second insulation appearance and the radius of the first insulation inner pipe from the concentric axis And may be smaller than the second heat insulating inner tube. Further, the second flange facing the first flange has a seal formed in the closed region from the second external appearance to the second external appearance and in the closed area from the second internal annulus to the second internal annulus.

The first flange and the second flange may be fastened by bolt connection, but the present invention is not limited thereto and various fastening means may be included within an equivalent range such as jointing.

FIG. 2 is a perspective view after disassembling the double heat insulating connection inner surface and the double heat insulating connection inner surface from the first flange 50 and the second flange 52, respectively. The outer surface of the double heat insulating connection includes a first outer tube 10, a first inner tube 40 having a double tube shape of the first inner tube 20 concentric with the first outer tube and a longitudinal extension of the thermal insulating tube, 30). A second outer tube (12), a second inner tube (22) concentric with the second outer tube and a second outer tube (42) and a second inner tube (32) forming a longitudinal extension of the thermal insulating part. The second adiabatic outer tube (42) is located between the second outer tube and the second inner tube. Particularly, the second flange of the double heat-insulating connection inner pipe is integrally formed by inserting the second heat-insulating outer pipe 42 into the hollow space in such a shape that a hollow space is formed at a certain distance from the concentric shaft.

Fig. 3 is a double-adiabatic connection structure tube integrated with the combination of a double-adiabatic connecting appearance and a double-adiabatic connecting inner pipe.

100 Appearance
200 inside
10 First appearance
20 1st Inner
30 1st insulating inner pipe
40 1st insulation appearance
50 1st flange
12 Second appearance
22 2nd Inner
32 2nd heat insulating inner pipe
42 Secondary Thermal Appearance
52 2nd flange

Claims (10)

A first outer appearance (10);
A first inner tube 20 formed concentrically with the first outer tube 10;
A first heat insulating inner pipe (30) located between the first outer pipe (10) and the first inner pipe (20);
A first heat insulating outer pipe (40) positioned between the first inner heat pipe (30) and the first outer pipe (10);
One side of the first outer tube, the first inner tube, the first thermal insulating tube and the first inner tube is fixed to the first flange 50,
The first inner heat pipe (30) and the other side of the first heat insulating outer pipe (40) are interconnected,
The first flange 50 closes the first side of the first adiabatic outer tube 40 from the first outer tube 10 and the second side of the first adiabatic tube 30 And closes the one side of the first inner pipe (20) from the first heat-insulating inner pipe (30)
The first annular inner tube (30) has a radius from the concentric axis being constant at a first radius,
The first endothermic inner tube (30) and the other side of the first endothermic outer tube (40) are interconnected
Characterized in that the first insulated outer tube (40) comprises a portion of which the radius from the concentric axis decreases as it is away from the first flange (50). delete delete delete A second outer appearance 12;
A second inner tube (22) formed concentrically with the second outer tube (12);
A second heat insulating inner pipe (32) positioned between the second outer pipe (12) and the second inner pipe (22);
A second adiabatic outer tube (42) positioned between the second inner tube (32) and the second outer tube (12);
One side of the second outer tube 12, the second inner tube 22, the second inner tube 32 and the second outer tube 42 is fixed to the second flange 52,
The other end of the second heat insulating inner pipe (32) and the second heat insulating outer pipe (42) are mutually connected,
The second flange 52 is closed from the second outer tube 12 to the second outer tube 42 and the second outer tube 42 is extended from the second outer tube 42 to the second inner tube 32 And closing the one side of the second inner pipe (22) from the second heat-insulating inner pipe (32)
The second inner heat pipe (32) has a radius from the concentric axis being constant at a second radius,
And the other end of the second heat insulating inner pipe (32) and the second heat insulating outer pipe (42)
Wherein the second insulated outer tube (42) includes a portion whose radius decreases from the concentric axis away from the second flange (52). delete delete delete A double insulation connection appearance according to claim 1;
A double insulation connection inner pipe according to claim 5;
The double heat insulating connection inner surface and the double heat insulating connection inner pipe are formed such that when the first and second flanges 50 and 52 are fastened to each other,
The radius from the concentric axis to the first heat insulating outer tube 40 is larger than the radius to the second heat insulating outer tube 42,
And a radius from the concentric axis to the first heat insulating inner pipe (30) is smaller than that of the second heat insulating inner pipe (32). 10. The method of claim 9,
(42) from the second outer tube (12) to the second inner tube (22) from the second inner tube (32) to the second inner tube (22) And a seal is formed in a region closed by the first and second openings (52).
KR1020170091921A 2017-07-20 2017-07-20 Dually adiabatic connected structure pipe KR101975271B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170091921A KR101975271B1 (en) 2017-07-20 2017-07-20 Dually adiabatic connected structure pipe

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Application Number Priority Date Filing Date Title
KR1020170091921A KR101975271B1 (en) 2017-07-20 2017-07-20 Dually adiabatic connected structure pipe

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KR20190009935A KR20190009935A (en) 2019-01-30
KR101975271B1 true KR101975271B1 (en) 2019-05-07

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101660694B1 (en) * 2015-12-16 2016-09-28 최종석 Vacuum insulated pipe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6091889U (en) * 1983-11-30 1985-06-22 三菱重工業株式会社 Cryogenic fluid double piping fitting
JPH0211999A (en) * 1988-06-29 1990-01-17 Hitachi Ltd Joint for vacuum adiabatic pipeline
JPH10231970A (en) * 1997-02-21 1998-09-02 Mitsubishi Heavy Ind Ltd Vacuum insulated pipe fitting
WO2013143137A1 (en) 2012-03-31 2013-10-03 France Telecom Research & Development Beijing Company Limited Content centric m2m system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101660694B1 (en) * 2015-12-16 2016-09-28 최종석 Vacuum insulated pipe

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