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Double-lug LNG liquid tank

A liquid tank and double-ear technology, which is applied to ship parts, ship construction, ship accessories, etc., can solve the problems of small capacity and easy deformation of LNG liquid tanks, and achieve the effect of improving storage capacity, increasing strength and preventing deformation

Pending Publication Date: 2021-05-28
JIANGSU YANGZI XINFU SHIPBUILDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of small capacity and easy deformation of LNG liquid tanks in the prior art, the object of the present invention is to provide a double-eared LNG storage tank that can effectively prevent deformation and has a large capacity

Method used

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  • Double-lug LNG liquid tank
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  • Double-lug LNG liquid tank

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:

[0021] As shown in the figure, a two-ear LNG liquid tank is composed of a tank body and two saddles. The saddle is fixedly welded on the deck of the cabin, and the tank body is installed on the saddle.

[0022] The tank body is welded together by two symmetrical half-tanks 1, and the half-tank 1 is composed of the middle section 2 and the spherical head 3 at both ends of the middle section 2. The bottom of the middle section 2 is provided with a liquid collection well 4, and the middle section 2 There is an air chamber 5 on the top, and the two half-tanks 1 are separated by a mediastinal bulkhead 6 to form a closed chamber with a double-ear structure. The mediastinal bulkhead 6 can enhance the strength of the tank body in the longitudinal direction. The middle part of the middle section 2 of each half tank is welded with a swash bulkhead 7...

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Abstract

The invention relates to the field of ships, and provides a double-lug LNG liquid tank for an LNG power-driven ship. A reinforcing ring is welded at the position corresponding to the saddle in the tank body, so that the strength of the matched part with the saddle is increased, and the matched part with the saddle is prevented from being deformed and damaged; the fixed saddle matches the sliding saddle, so that the damage to the tank body caused by the displacement of the tank body due to ship bumping and thermal expansion and cold contraction is reduced; a pair of vacuum rings is additionally arranged in the tank body and is used for reinforcing the structure of the long cylinder body, so that the deformation resistance of the long cylinder body is improved; a swash bulkhead is mounted in the middle of the tank body, so that jolt is reduced, namely fluctuation of liquid in the tank body, and damage possibly caused by fluctuation is reduced; a double-lug structure is adopted, two half tanks are spliced, the storage capacity of the storage tank is effectively improved, the longitudinal partition bulkhead is constructed between two tanks, the transverse strength of the tank bodies is further improved, and deformation is prevented.

Description

technical field [0001] The invention relates to the field of ships, in particular to a double-ear LNG liquid tank for LNG-powered ships. Background technique [0002] Since January 1, 2015, the European Union has begun to implement strict ship sulfide emission standards. Ships traveling in EU exclusive control areas such as the Baltic Sea, the North Sea and the English Channel, the sulfide emission standard has been reduced to 0.1%. This item has a greater impact on freight, because freight costs are more sensitive to fuel prices. Conventional fuel in shipping is heavy fuel, with sulfur content usually between 1.0% and 3.5%. To comply with the 0.1% sulfur emissions control area, shipping companies must use a different type of fuel that is purer and therefore more expensive. However, LNG has gradually become the first choice of green energy due to its advantages of high calorific value and low environmental pollution. The international and domestic LNG trade and transportati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B25/08B63B17/00
CPCB63B17/0027B63B25/08B63B2025/087
Inventor 王俊张鹏沈强昇朱宏伟刘银君
Owner JIANGSU YANGZI XINFU SHIPBUILDING CO LTD
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