Piping structure, cooling device including the same, and method for transporting refrigerant vapor

Patent metadata

Field	Value
Publication number	US-2016290691-A1
Application number	US-201415036688-A
Country	US
Kind code	A1
Filing date	Nov 10, 2014
Priority date	Nov 14, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

It is difficult to avoid a decrease in cooling capacity without causing an increase in power consumption if a cooling device including a piping structure grows in size, therefore, a piping structure according to an exemplary aspect of the present invention includes a tubular part including a first flow passage through which a refrigerant flowing and a shell region surrounding the first flow passage; an introduction part composing a part of the shell region and including a second flow passage connected to the first flow passage; and a connection located at an end, between ends of the introduction part, on the side opposite to an end on a side where the second flow passage being connected to the first flow passage.

First claim

1 . A piping structure, comprising:
a tubular part including a first flow passage through which a refrigerant flowing and a shell region surrounding the first flow passage; an introduction part composing a part of the shell region and including a second flow passage connected to the first flow passage; and a connection located at an end, between ends of the introduction part, on the side opposite to an end on a side where the second flow passage being connected to the first flow passage.

2 . The piping structure according to claim 1 ,
wherein an outer surface of the connection is a plane.

3 . The piping structure according to claim 1 ,
wherein the connection includes a seal structure.

4 . The piping structure according to claim 1 ,
wherein the connection includes an opening through which the refrigerant flows, and a cross-sectional area of the first flow passage is larger than a cross-sectional area of the opening.

5 . The piping structure according to claim 1 ,
wherein a drawing direction of the second flow passage does not intersect with a central axis of the first flow passage.

6 . The piping structure according to claim 1 ,
wherein an angle on the same plane, between a drawing direction of the first flow passage and a drawing direction of the second flow passage, is an acute angle.

7 . The piping structure according to claim 1 ,
wherein a saturated vapor pressure of the refrigerant is equal to or lower than an atmospheric pressure at zero degree Celsius.

8 . A cooling device including a piping structure, comprising:
a piping structure including:
a tubular part including a first flow passage through which a refrigerant flowing and a shell region surrounding the first flow passage;
an introduction part composing a part of the shell region and including a second flow passage connected to the first flow passage; and
a connection located at an end, between ends of the introduction part, on the side opposite to an end on a side where the second flow passage being connected to the first flow passage, and
a plurality of evaporation units connected to the connection, wherein the refrigerant vaporizes by drawing heat in the evaporation unit.

9 . The cooling device including the piping structure according to claim 8 , further comprising a heat radiator connected to the tubular part and a distribution structure connected to the heat radiator,
wherein the heat radiator makes the refrigerant vaporized in the evaporation unit radiate heat and liquefy, the distribution structure distributes the refrigerant liquefied in the heat radiator to at least one of the plurality of evaporation units.

10 . A method for transporting refrigerant vapor, comprising:
making a first refrigerant flow in a first direction; making a second refrigerant flow in a second direction different from the first direction; and making the first refrigerant and the second refrigerant join so that an angle on the same plane, between the first direction and the second direction may be an acute angle.

11 . The method for transporting refrigerant vapor according to claim 10 , further comprising
making the first refrigerant and the second refrigerant join so that the first direction may not intersect with the second direction.

12 . The piping structure according to claim 2 ,
wherein the connection includes a seal structure.

13 . The piping structure according to claim 2 ,
wherein the connection includes an opening through which the refrigerant flows, and a cross-sectional area of the first flow passage is larger than a cross-sectional area of the opening.

14 . The piping structure according to claim 3 ,
wherein the connection includes an opening through which the refrigerant flows, and a cross-sectional area of the first flow passage is larger than a cross-sectional area of the opening.

15 . The piping structure according to claim 2 ,
wherein a drawing direction of the second flow passage does not intersect with a central axis of the first flow passage.

16 . The piping structure according to claim 3 ,
wherein a drawing direction of the second flow passage does not intersect with a central axis of the first flow passage.

17 . The piping structure according to claim 4 ,
wherein a drawing direction of the second flow passage does not intersect with a central axis of the first flow passage.

18 . The piping structure according to claim 2 ,
wherein an angle on the same plane, between a drawing direction of the first flow passage and a drawing direction of the second flow passage, is an acute angle.

19 . The piping structure according to claim 3 ,
wherein an angle on the same plane, between a drawing direction of the first flow passage and a drawing direction of the second flow passage, is an acute angle.

20 . The piping structure according to claim 4 ,
wherein an angle on the same plane, between a drawing direction of the first flow passage and a drawing direction of the second flow passage, is an acute angle.

Assignees

• Nec Corp
• Nec Platforms Ltd

Inventors

• Chiba Masaki
• Yoshikawa Minoru
• Shoujiguchi Akira
• Inaba Kenichi
• Matsunaga Arihiro
• Sato Masanori
• Hosaka Tadao
• Nakamura Yasuhito

Classifications

• F16L41/086

  fixed with screws · CPC title

• F25B2500/01

  Geometry problems, e.g. for reducing size · CPC title

• F25B41/40

  Fluid line arrangements · CPC title

• F25B39/028

  having distributing means · CPC title

• F25B2500/05

  Cost reduction · CPC title