A side thrust function simulation device for large-scale liquefied petroleum and natural gas tank test

Abstract

The invention relates to a large liquefied petroleum and natural gas boat pond test horizontal thrusting function simulation device which comprises four vertical supports, two guide rods, two linings for micro ball guide, balls, two fixed pulleys, two ropes, a plurality of weights with different masses, two tension sensors, a computer and a protractor. Every two vertical support are in a group, the two groups of vertical supports are symmetrically and fixedly arranged on banks on the two sides of an FLNG model. Each guide rod is fixedly installed on the tops of the corresponding two vertical supports on one side of the corresponding bank and is sleeved with one lining for micro ball guide, and each ball is arranged between the corresponding guide rod and the corresponding lining for micro ball guide. Each lining for micro ball guide is fixedly connected with one fixed pulley, each rope is wound on the corresponding fixed pulley, one end of each rope is connected with the weights, and the other end of each rope is connected with a boat bottom horizontal thrusting action point through one tension sensor.

Description

technical field [0001] The invention relates to a side thrust function simulation device for a model test, in particular to a side thrust function simulation device for a tank test of a large liquefied petroleum natural gas ship. Background technique [0002] As we all know, the shortage of oil resources and the growing demand for energy have led to large-scale development of offshore oil and gas fields. In order to economically and effectively develop offshore marginal oil and gas fields, the concept of FLNG (Large Liquefied Petroleum and Natural Gas Ship) has been proposed internationally. The huge volume of FLNG has been moored in the operating sea area for a long time, and will experience complex marine environmental conditions, and often requires LNGC (liquefied petroleum and natural gas carrier) to stand by for unloading operations. Harsh marine environmental conditions will cause violent movement of FLNG, especially when the unloading operation is carried out by FLNG...

AI Technical Summary

Problems solved by technology

There are many problems in the simulation of the side thruster in the existing model test, mainly manifested in: 1. The side thruster is relatively complex, mainly composed of sensors, controllers and actuators

The side thruster is the actuator of the side thruster, usually a propeller. The production of the propeller is relatively complicated, and a motor needs to be installed on the ship for propulsion. There are many devices

2. This device is relatively easy to measure the rotational speed of the side thruster, but it is difficult to directly measure the thrust, which will increase the experimental error

3. The device is expensive, and its cost is relatively high

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