Epoxy pouring process for liquid tank saddle of liquefied gas transport ship

Abstract

The invention relates to an epoxy pouring process for a liquid tank saddle of a liquefied gas transport ship. The epoxy pouring process comprises the following concrete steps: (1) preparing; (2) epoxystirring; (3) epoxy smearing; and (4) inspecting. The epoxy pouring process for the liquid tank saddle of the liquefied gas transport ship has the advantages as follows: 1, the preparation is adequate, the sagging of epoxy resin is prevented through the arrangement of thin pine twigs, the pouring viscosity is within an appropriate range after the epoxy resin is heated to 25-30 DEG C, and that engineers and workers are in a tearing hurry during construction is prevented through the adequate preparation; 2, a stirring electric drill is mounted on stirring blades, and the stirring electric drillis electrified to perform stirring at a certain rotating speed for 2-3 minutes with the no-load speed not exceeding 500 rmp, so as to ensure the uniform stirring; and the stirring blades are rotatedalong the barrel body, so that the epoxy resin at the bottom and on the edge of the tank is uniformly mixed with a curing agent, the stirring is high in speed and highly efficient, and the stirring blades are completely buried in the epoxy resin and air bubbles are prevented from generating during the stirring process; 3, the curing time is shortened by controlling the epoxy resin curing environment temperature, and the overall epoxy pouring efficiency is increased.

Description

technical field [0001] The invention belongs to a process for entering a cargo compartment of a liquid tank, in particular to an epoxy pouring process for a liquid tank saddle of a liquefied gas transport ship. Background technique [0002] LNG storage tank is the core equipment in the LNG storage process system, which has the characteristics of high technical difficulty, long construction period (2-3 years), high project investment (accounting for about 30% of the direct cost of the receiving station), etc. LNG liquefied gas carrier An important step in the hoisting process of the liquid tank into the cargo compartment is the epoxy pouring of the liquid tank saddle. [0003] Epoxy resin is widely used in the epoxy casting process of liquid tank saddles of LPG / LNG ships. It has extremely excellent pressure-bearing and adhesive properties under low temperature conditions, and can ensure that the force of each support seat of the liquid tank is evenly distributed , the existi...

AI Technical Summary

Problems solved by technology

[0003] Epoxy resin is widely used in the epoxy casting process of liquid tank saddles of LPG / LNG ships. It has extremely excellent pressure bearing and adhesive properties under low temperature conditions, and can ensure that the force of each support seat of the liquid tank is evenly distributed , the existing liquefied gas carrier liquid tank saddle epoxy pouring process has the following disadvantages: 1. The work of preparing materials is insufficient, and the phenomenon that employees are in a hurry when starting epoxy mixing and epoxy pouring process, the operator is often preparing The preheating and ambient temperature of the epoxy resin were ignored in the first stage, resulting in the pouring viscosity not being in a suitable range, the curing agent curing effect was poor, and the efficiency was low; 2. During the epoxy mixing process, improper mixing methods led to uneven and thorough mixing, and 3. The epoxy construction time is not properly controlled, the time is long, and the epoxy material becomes thinner, which leads to the leaking site and increases the difficulty of construction