A kind of double-wall pipe used for ship gas pipeline and its installation method

A technology of gas pipeline and installation method, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve the problem of expanding the annular space of the inner pipe and the outer pipe, increasing the difficulty of ventilation design, increasing the material and Production cost and other issues, to achieve the effect of high impact energy absorption rate, low material and processing cost, material and space saving

Active Publication Date: 2019-11-22
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The size of the bracket used in the existing double-wall pipe technical scheme is relatively large, resulting in a large diameter of the outer pipe. The larger diameter of the tube leads to an increase in the weight of the outer tube, which requires further increase in the strength and size of the bracket or the number of brackets, which makes the design of the double-wall tube more complicated and difficult, and greatly increases the cost of materials and production

Method used

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  • A kind of double-wall pipe used for ship gas pipeline and its installation method
  • A kind of double-wall pipe used for ship gas pipeline and its installation method
  • A kind of double-wall pipe used for ship gas pipeline and its installation method

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Embodiment 1

[0046] Such as Figure 1-5As shown, this embodiment is used for the double-walled pipe of the gas pipeline of the ship, and the double-walled pipe includes an outer pipe 1 and an inner pipe 2, and the outer pipe 1 and the inner pipe 2 are arranged coaxially. A bracket 3 is sleeved between the inner tubes 2, and an outer ring interlayer 4 is laid on the inner wall of the outer tube 1, and the outer ring interlayer 4 and the inner wall of the outer tube 1 are bonded and fixed. 2 is provided with an inner ring interlayer 5, there is a gap between the inner wall of the inner ring interlayer 5 and the outer wall of the inner pipe 2, the bracket 3 is sleeved on the inner ring interlayer 5, the inner wall of the bracket 3 is in contact with the inner The outer wall of the ring interlayer 5 is in contact, the outer wall of the bracket 3 is in contact with the inner wall of the outer ring interlayer 4, and several through holes 6 are sandwiched on the bracket along the length direction...

Embodiment 2

[0058] Such as Figure 6 and Figure 7 As shown, this embodiment is used for the double-walled pipe of the gas pipeline of the ship, and the double-walled pipe includes an outer pipe 1 and an inner pipe 2, and the outer pipe 1 and the inner pipe 2 are arranged coaxially. A bracket 3 is sleeved between the inner tubes 2, and an outer ring interlayer 4 is laid on the inner wall of the outer tube 1, and the outer ring interlayer 4 and the inner wall of the outer tube 1 are bonded and fixed. 2 is provided with an inner ring interlayer 5, there is a gap between the inner wall of the inner ring interlayer 5 and the outer wall of the inner pipe 2, the bracket 3 is sleeved on the inner ring interlayer 5, the inner wall of the bracket 3 is in contact with the inner The outer wall of the ring interlayer 5 is in contact, the outer wall of the bracket 3 is in contact with the inner wall of the outer ring interlayer 4, and several through holes 6 are sandwiched on the bracket along the le...

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Abstract

The invention discloses a double-wall pipe for a ship fuel pipeline. The double-wall pipe comprises an outer pipe and an inner pipe which are coaxially arranged, wherein a bracket is arranged betweenthe outer pipe and the inner pipe in a sleeving manner; an outer circle interlayer is paved on the inner wall of the outer pipe in an adhering fixing manner; an inner circle interlayer sleeves the inner pipe; the bracket sleeves the inner circle interlayer; the inner wall of the bracket is in contact with the outer wall of the inner circle interlayer, and the outer wall of the bracket is in contact with the inner wall of the outer circle interlayer; a plurality of through holes are formed in the bracket in the length direction by clamping; hoops are arranged at two ends of the inner circle interlayer; the cross sections of the inner pipe, the inner circle interlayer, the bracket, the outer circle interlayer and the outer pipe are all in a shape of a concentric circular ring. According to the double-wall pipe, the bracket is manufactured through foamed aluminum material; the material cost and the processing cost are low; the double-wall pipe has the advantages of being light in mass, high in intensity, high in damping and vibration absorbing performances, high in impact energy absorbing rate, resistant to high temperature, resistant to corrosion, resistant to weather, capable of insulating noise and reducing noise, and easy to process.

Description

technical field [0001] The invention belongs to the technical field of ships, and relates to a double-wall pipe used for a ship's gas pipeline between a ship's gas engine (including a pure gas engine and a dual-fuel engine) and a gas valve group and an installation method thereof. Background technique [0002] With the increasingly stringent requirements for ship exhaust emission restrictions, the use of natural gas power systems for ships has become the development trend of ship power in the future. Due to its high calorific value, no sulfur, clean combustion, and low emissions, natural gas will become the preferred fuel for future green ships. The state has always strongly supported the development of ships powered by natural gas fuel. In 2013, the Ministry of Transport put forward "Several Opinions on Promoting the Transformation, Upgrading and Healthy Development of the Shipping Industry" to encourage and accelerate the application and development of liquefied natural g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/133
CPCF16L9/133
Inventor 段斌钱强王志敏
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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