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Movable floating liquid cargo transfer offshore platform with dynamic positioning device and transfer method

A technology of dynamic positioning and floating platforms, which is applied in the direction of measuring devices, container filling methods, and bulk goods, which can solve the problems of large limitations, waste of space and resources, and achieve good safety performance and high efficiency.

Active Publication Date: 2020-08-04
NANJING ENTECO ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has relatively large limitations, or requires a long pipeline to extend it to the wharf, or requires the transshipment ship itself to carry filling equipment, and generally the filling equipment is relatively large, which wastes space and resources when installed on the transshipment ship

Method used

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  • Movable floating liquid cargo transfer offshore platform with dynamic positioning device and transfer method
  • Movable floating liquid cargo transfer offshore platform with dynamic positioning device and transfer method
  • Movable floating liquid cargo transfer offshore platform with dynamic positioning device and transfer method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Embodiment 1. Transfer and packaging of liquefied natural gas.

[0068] Transfer and repackaging: use this platform to realize the transfer of liquid cargo from LNG bulk carriers to LNG packaging carriers-LNG container carriers.

[0069] The specific process is divided into the following four stages:

[0070] Step 1. Beside mooring stage of LNG bulk carrier

[0071] The LNG bulk carrier is moored side by side with the assistance of tugboats, push wheels, etc., on one side of the offshore platform 1 fixed by a single-point mooring method.

[0072] Step 2, LNG cargo unloading stage

[0073] From the LNG bulk carrier, the LNG cargo is sequentially transferred to the LNG cargo tank 15 on the platform via the LNG unloading arm 11 and the LNG cargo tube bag 10 .

[0074] Step 3. Large-scale filling of tank containers (take area B as an example, and vice versa)

[0075] Use the LNG tank container filling module on the transfer offshore platform to load LNG in batches into ...

Embodiment 2

[0087] Embodiment 2: Liquefied natural gas collection and transfer: use this platform to realize the transfer of liquid cargo from the LNG packaging carrier - LNG container carrier 3 to the LNG bulk carrier 2 .

[0088] The specific process is also divided into 4 stages:

[0089] Step 1. Lifting and replacement of full and empty containers.

[0090] The container bridge cranes 5 in areas A and B of the platform lift the full containers collected by the LNG tank container carrier from multiple marginal gas fields to the operation area A of the platform, and then lift the empty containers stacked in the operation area B Hoist to LNG tank container carrier.

[0091] Step 2, LNG collection and transfer stage - the cargo in the full tank is transported in reverse.

[0092] The LNG tank container filling module on the transfer offshore platform is used to reversely transport the liquid cargo in the full tank in area A to the LNG liquid cargo tank 15 of the platform in batches.

...

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Abstract

The invention discloses a movable floating-type liquid cargo lightering maritime work platform with a dynamic positioning device and a lightering method. The lightering maritime work platform mainly comprises a movable floating-type platform; the movable floating-type platform comprises a body, one end of the body is rotatably connected with a single point mooring device, the body is provided with a liquid cargo cabin and a liquid cargo tank-type container filling and lifting operation area located above the liquid cargo cabin, and a liquid cargo tank-type container is installed in the operation area; bridge machines which can move longitudinally along the liquid cargo tank-type container filling and lifting operation area are arranged on the two sides of the liquid cargo tank-type container filling and lifting operation area; and a filling system is connected to the liquid cargo cabin and used for filling liquid into the tank-type container. According to the lightering maritime work platform, the cache capacity and the transfer function are achieved, meanwhile the lifting and filling area is arranged on the platform, a separated design is achieved, the efficiency of filling and lifting is higher, and the safety performance is better.

Description

technical field [0001] The invention relates to oil and gas transfer equipment, in particular to a liquid cargo or liquid cargo transfer system and method. Liquid cargo includes liquefied natural gas LNG, liquid ethylene LEG, petroleum gas LPG, etc. Background technique [0002] Special transportation based on tank containers has become a hot spot in the industry. Tank container transportation is flexible and changeable. Such packaged goods can be directly sent to customers closer to customers by sea, river or river without the help of special receiving stations. Class 2.1 Hazardous Chemical Terminals of Container Ports. At the same time, it can better connect land transportation and water transportation, and carry out multimodal transportation by land and water. [0003] For this reason, technicians have improved and proposed some new schemes. It mainly includes offshore platform systems. For example, patent CN107575738 proposes an offshore platform. The advantage of thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B27/34B63B27/30F17C5/02B63B25/08B63B22/00F17C1/00G01D21/02
CPCB63B22/00B63B25/08B63B27/30B63B27/34B63B2022/006F17C1/002F17C5/02G01D21/02B63B25/004B63B25/14B63B25/16B63B27/12
Inventor 张冲霍燕宁
Owner NANJING ENTECO ENERGY TECH CO LTD