CN214274722U - Composite corrosion-resistant ship liquid tank embedded pipe with water jacket - Google Patents

Abstract

The utility model relates to a boats and ships pipeline field provides a take compound anti-corrosion type boats and ships tank embedded pipe of water jacket, the embedded pipe includes Kevlar hose, metal sleeve, takes water jacketed spill welding piece and metal sealing flange, metal sleeve cup joints in Kevlar hose middle part, Kevlar hose both ends cup joint respectively takes water jacketed spill welding piece and metal sealing flange. The utility model discloses a boats and ships tank embedded pipe, fluid medium flow in the Kevlar hose, and metal sleeve and the contact of the inside medium of tank have effectively kept apart the combined action that the high velocity of flow fluid erodeed and the liquid under-deck medium and have corroded the pipeline, and it has good corrosion resisting property, is applicable to boats and ships complex environment.

Description

Composite corrosion-resistant ship liquid tank embedded pipe with water jacket

Technical Field

The utility model belongs to the technical field of the boats and ships pipeline and specifically relates to a take compound anti-corrosion type boats and ships tank embedded pipe of water jacket.

Background

A large number of pipelines with different functions are distributed in the ship, and media conveyed in the pipelines comprise seawater, fresh water, air, hydraulic oil and the like, so that the pipeline plays an important role in ensuring the normal operation of a ship system. The drift diameters of pipelines with different media are different, the drift diameters of certain seawater pipelines exceed 100mm and are limited by the overall structure and the space size of a ship, the seawater pipeline with the large drift diameter is designed to penetrate through a liquid tank in the ship to achieve the purpose of saving space, and the pipelines are called as pre-buried pipes. The pre-buried pipe is pre-installed in the liquid tank in the process of manufacturing the internal liquid tank, and after the welding of the liquid tank shell and the ship body is finished, constructors enter the liquid tank from the liquid tank access hole to weld the two ends of the pre-buried pipe on the wall of the liquid tank. Thus, when the internal tank is filled with seawater, sewage, or fuel, the operation of the pre-buried pipe will not be observable. In addition, due to the combined corrosion effects of the large-flow-rate scouring of fluid in the embedded pipe, media in a liquid tank and the like, the embedded pipe is subjected to leakage such as sand holes, perforation and the like, and the normal operation of a ship system is directly damaged.

The types of pre-buried pipes currently used on ships are mainly: TP2 red copper tube, 10# steel tube, 20# steel tube, B10 tube, etc. The TP2 red copper tube, the No. 10 steel tube and the No. 20 steel tube adopt measures of increasing the wall thickness, brushing anti-corrosion paint and epoxy daub on the outer surfaces and the like, but the corrosion leakage problem still occurs for many times; b10 piping has an excessive leakage at the weld at the tank wall joint due to dissimilar metal corrosion.

With the development of fiber technology, various fiber materials are wound on the hose to form the high-pressure rubber hose, and the hose is convenient to manufacture, low in price and mature in production process. The Kevlar hose has the advantages of high specific strength, high specific modulus, low density (only 1/6 of steel), excellent fatigue resistance, corrosion resistance and insulation performance, and wide application prospect. But the existing Kevlar hose cannot be directly used as an embedded pipe to be applied to a ship system.

Disclosure of Invention

An object of the utility model is to overcome the shortcoming of current embedded pipe technique, provide a take water jacketed compound anti-corrosion type boats and ships tank embedded pipe, it has good corrosion resisting property, is applicable to boats and ships complex environment.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the composite corrosion-resistant ship liquid tank embedded pipe with the water jacket comprises a Kevlar hose, a metal sleeve, a concave welding piece with the water jacket and a metal sealing flange, wherein the metal sleeve is sleeved in the middle of the Kevlar hose, and the concave welding piece with the water jacket and the metal sealing flange are sleeved at two ends of the Kevlar hose respectively.

In the technical scheme, the concave welding piece with the water jacket, the metal sealing flange and the Kevlar hose form a whole in a vulcanization mode.

In the above technical solution, the concave welding member with the water jacket is welded to the internal tank wall and the metal sleeve respectively.

The utility model discloses the working method of boats and ships tank embedded pipe is as follows:

and metal flanges at two ends of the embedded pipe are connected with a system pipeline outside the internal liquid cabin, and when the system normally operates, fluid media flow through the inside of the Kevlar hose in the embedded pipe.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model discloses a boats and ships tank embedded pipe, fluid medium flow in the Kevlar hose, and metal sleeve and the contact of the inside medium of tank have effectively kept apart the combined action that the high velocity of flow fluid erodeed and the liquid under-deck medium and have corroded the pipeline, and it has good corrosion resisting property, is applicable to boats and ships complex environment.

2. The utility model discloses a boats and ships liquid tank embedded pipe has avoided the dissimilar metal corrosion between embedded pipe and the liquid tank wall, has prolonged the life of embedded pipe.

3. The utility model discloses a kavalra hose, metal sealing flange and metal sleeve in the pre-buried pipe of boats and ships tank all adopt the standard component, can realize batchization, serialization production.

Drawings

Fig. 1 is a schematic view of the structure of the composite corrosion-resistant ship liquid tank embedded pipe with the water jacket according to the present invention.

The device comprises a Kevlar hose 1, a metal sleeve 2, a concave welding piece 3 with a water jacket, a metal sealing flange 4, an internal liquid tank wall 5 and an ice block 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

As shown in fig. 1, the embodiment provides a composite corrosion-resistant ship liquid tank embedded pipe with a water jacket, the embedded pipe includes a kevlar hose 1, a metal sleeve 2, a concave welding piece 3 with the water jacket, and a metal sealing flange 4, the metal sleeve 2 is sleeved in the middle of the kevlar hose 1, and two ends of the kevlar hose 1 are respectively sleeved with the concave welding piece 3 with the water jacket and the metal sealing flange 4. The concave welding piece 3 with the water jacket, the metal sealing flange 4 and the Kevlar hose 1 are vulcanized into a whole.

When the embedded pipe of the ship liquid tank is installed in the internal liquid tank, in order to prevent the influence of high welding temperature on the Kevlar hose 1, firstly, ice blocks 6 are plugged into the concave welding piece 3 with the water jacket, and then the concave welding piece 3 with the water jacket is manually welded with the bulkhead 5 of the internal liquid tank and the metal sleeve 2 respectively. And then connecting the ship system pipeline outside the liquid tank with the metal sealing flanges 4 at two ends, and finishing the installation of the pre-buried pipe. When the ship system operates, the fluid medium flows through the Kevlar hose 1, and the fluid medium is not in contact with the metal sleeve 2, so that the corrosion resistance can be greatly improved.

Details not described in this specification are within the skill of the art that are well known to those skilled in the art.

The above embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (3)

1. The utility model provides a take compound anti corrosion type boats and ships tank embedded pipe of water jacket which characterized in that: the embedded pipe comprises a Kevlar hose (1), a metal sleeve (2), a concave welding piece (3) with a water jacket and a metal sealing flange (4), wherein the metal sleeve (2) is sleeved in the middle of the Kevlar hose (1), and the concave welding piece (3) with the water jacket and the metal sealing flange (4) are respectively sleeved at two ends of the Kevlar hose (1).

2. The composite corrosion-resistant ship tank embedded pipe with the water jacket according to claim 1, wherein: the concave welding piece (3) with the water jacket, the metal sealing flange (4) and the Kevlar hose (1) form a whole in a vulcanization mode.

3. The composite corrosion-resistant ship tank embedded pipe with the water jacket according to claim 1, wherein: the concave welding piece (3) with the water jacket is respectively welded with the inner liquid chamber wall and the metal sleeve (2).

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