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Ductile stainless steel pipe and heat pump system comprising same

A stainless steel tube and stainless steel technology, applied in the direction of hoses, tubes, rigid tubes, etc., can solve the problem that copper tubes do not have sufficient pressure resistance characteristics to withstand high pressure, unfavorable tube expansion operations or tube bending operations, and refrigerant pressure stress Avoid problems such as small margins, and achieve the effect of preventing vibration and damage, reducing manufacturing costs, and securing installation space

Active Publication Date: 2018-10-23
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Second, the copper tube has the disadvantage of not having sufficient high-voltage withstand voltage characteristics
[0008] Third, since the copper pipe has a small stress margin to withstand the refrigerant pressure inside the pipe, it has the disadvantage of being weak against the vibration transmitted from the compressor.
[0014] However, since the strength and hardness of conventional existing stainless steel pipes are much higher than those of copper pipes, there is a disadvantage that it is not suitable for pipe expansion work or pipe bending work for pipe connection.
In particular, the piping constituting the refrigerant cycle can be arranged to bend at a specific point with a specific curvature, but in the case of using existing stainless steel pipes, there is a disadvantage that it is impossible to bend the piping

Method used

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  • Ductile stainless steel pipe and heat pump system comprising same
  • Ductile stainless steel pipe and heat pump system comprising same
  • Ductile stainless steel pipe and heat pump system comprising same

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Embodiment Construction

[0057] Hereinafter, some embodiments of the present invention will be described in detail with reference to illustrative drawings. When attaching reference numerals to constituent elements in each drawing, it should be noted that the same constituent elements are given the same reference numerals as much as possible even if they are shown in different drawings. In addition, when describing the embodiments of the present invention, when it is judged that a specific description of related known structures or functions will hinder the understanding of the embodiments of the present invention, the detailed description will be omitted.

[0058] In addition, terms such as first, second, A, B, a, b, etc. can be used when describing components of the embodiments of the present invention. However, such terms are used only to distinguish the constituent elements from other constituent elements, and the nature, order, or order, etc. of the corresponding constituent elements are not limit...

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Abstract

Provided is a ductile stainless steel pipe made of stainless steel having an austenite type matrix structure and containing a copper component. The ductile stainless steel pipe has a delta ferrite matrix structure of about 1% or less on the basis of a grain area. The ductile stainless steel pipe includes a steel pipe having a set outer diameter to carry a refrigerant of an air conditioner. R410a is used as the refrigerant, and the ductile stainless steel pipe has a minimum thickness determined based on a saturated pressure of the refrigerant.

Description

technical field [0001] The present invention relates to a soft stainless steel pipe (Ductile stainless steel pipe). Background technique [0002] An air conditioner may be defined as a device that uses a phase change cycle of a refrigerant to supply warm air or cool air to a room. [0003] In detail, the phase change cycle of the refrigerant may include: a compressor, which is used to compress the low-temperature and low-pressure gas-phase refrigerant into a high-temperature and high-pressure gas-phase refrigerant; The high-temperature and high-pressure gas-phase refrigerant is phase-changed into a high-temperature and high-pressure liquid-phase refrigerant; an expansion valve is used to expand the high-temperature and high-pressure liquid-phase refrigerant passing through the condenser into a low-temperature and low-pressure two-phase refrigerant; and An evaporator that phases the low-temperature and low-pressure two-phase refrigerant passing through the expansion valve in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/14F25B41/06F25B41/42
CPCF16L11/14F25B41/31C21D6/004C21D8/105C21D9/14C21D1/26C22C38/001C22C38/02C22C38/04C22C38/40C22C38/42C22C38/44C22C38/58C21D2211/001C21D2211/005F16L9/02F16L9/17F24F1/32
Inventor 洪硕杓
Owner LG ELECTRONICS INC
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