Piping structure and piping method for cooling systems on ships

Abstract

The objective is to provide a piping structure and piping method for a cooling system inside a ship that can prevent condensation in refrigerant pipes and also offers excellent maintainability. [Solution] The invention comprises a refrigerant pipe installed inside a ship through which a refrigerant flows, and an insulating section provided on the outside of the refrigerant pipe, wherein the refrigerant pipe is connected to a cooling device which is a refrigerator or freezer installed inside the ship, and the insulating section is attached to the outer surface of the refrigerant pipe and has multiple insulating layers.

Claims

[Claim 1] A refrigerant pipe installed inside a ship through which a refrigerant flows, The refrigerant pipe is provided with an insulating section on the outside, The refrigerant pipe is connected to a cooling device, which is a refrigerator or freezer, installed inside the ship, and the insulation part is attached to the outer surface of the refrigerant pipe and has multiple insulation layers. The aforementioned insulation layer has an inner covering portion that covers the outer surface of each of the multiple parallel refrigerant pipes, and an outer covering portion that covers the outer surfaces of the multiple inner covering portions together. The outer covering portion, in cross-sectional view, has a concave portion that is recessed toward the space between the refrigerant pipes, The thickness of the outer covering layer is greater than the thickness of the inner covering layer. The outer surface of the inner covering portion is in contact with the outer surface of another inner covering portion that covers the refrigerant pipe it covers and an adjacent refrigerant pipe. The outer covering portion is formed by attaching or wrapping insulating tape around multiple parallel refrigerant pipes. A piping structure for a cooling system inside a ship, characterized by the following features. [Claim 2] The inner covering portion, in cross-sectional view, is in contact with the outer surface of the refrigerant pipe over its entire circumference. The outer covering portion is in contact with the outer circumferential surface of the inner covering portion. A piping structure for a cooling system inside a ship, as described in claim 1. [Claim 3] The process of connecting refrigerant pipes to a cooling device, which is a refrigerator or freezer, installed inside the ship and piping it inside the ship, The process includes the step of providing an insulating portion on the outer surface side of the installed refrigerant pipe, The aforementioned heat insulating portion is attached to the outer surface side of the refrigerant pipe and has multiple heat insulating layers. The aforementioned insulation layer has an inner covering portion that covers the outer surface of each of the multiple parallel refrigerant pipes, and an outer covering portion that covers the outer surfaces of the multiple inner covering portions together. The outer covering portion, in cross-sectional view, has a concave portion that is recessed toward the space between the refrigerant pipes, The thickness of the outer covering layer is greater than the thickness of the inner covering layer. The outer surface of the inner covering portion is in contact with the outer surface of another inner covering portion that covers the refrigerant pipe it covers and an adjacent refrigerant pipe. The outer covering portion is formed by attaching or wrapping insulating tape around multiple parallel refrigerant pipes. A piping method for a cooling system inside a ship, characterized by the features described herein.

Images