Protection coating for petroleum equipment and construction method thereof

Abstract

The invention which relates to a protection coating for petroleum equipment and a construction method thereof belongs to the technical field of chemical engineering coatings. The protection coating comprises, by mass, 70-99% of polyaryletherketone, 1-30% of a fluororesin, and 0-6% of an inorganic filler. The construction method comprises the following steps: 1, sand-blasting the surface of a workpiece; 2, spraying a powdery pure polyaryletherketone coating on the surface of the workpiece by utilizing an electrostatic spraying technology; 3, placing the workpiece in an oven to fuse the powdery pure polyaryletherketone coating; 4, spraying a powdery composite polyaryletherketone coating while hot by utilizing the electrostatic spraying technology, and fusing the powdery composite polyaryletherketone coating; and 5, cooling to 220-300DEG C, maintaining the temperature for 30-90min, and cooling to room temperature. According to the invention, the process flow can be reasonably controlled, and the operation is simple; and the obtained coating layer has the advantages of strong adhesion force, and excellent resistance, abrasion resistance and non-stick performance, so the service life of the petroleum equipment can be increased, thereby the oil extraction cost reduction purpose is reached.

Description

technical field [0001] The invention specifically relates to a protective coating and a preparation method and a construction method thereof. The main application is in the anti-corrosion, wear-resistant and anti-scaling of equipment in petrochemical systems, and can also be applied to other chemical equipment. The invention belongs to the technical field of chemical coatings. Background technique [0002] At present, in the field of petrochemical industry, oil pipelines, oil casings, oil well pumps and other petroleum equipment are always accompanied by corrosion, wear and fouling damage to equipment in the process of oil exploitation, processing and transportation, and the annual loss due to this aspect is immeasurable. In the past, the following three treatment methods were often used to solve the problem of anticorrosion and scaling: 1. Ni-P plating treatment, but it will pollute the environment; 2. Nitriding technology, which has good corrosion resistance, but has litt...

AI Technical Summary

Problems solved by technology

In the past, the following three treatment methods were often used to solve the problem of anticorrosion and scaling: 1. Ni-P plating treatment, but it will pollute the environment; 2. Nitriding technology, which has good corrosion resistance, but has little effect on scaling, and high temperature treatment It will make the material more brittle; 3. Alloy or polymer coating is easy to delaminate, resulting in poor coating adhesion; other methods are also deficient in some aspects