Anti-corrosion process for oil tank of petrol station

Abstract

The invention discloses an anti-corrosion process for an oil tank of a petrol station. Corrosion resistance of the oil tank adopts a sand-blasting and rust-removal mode to treat a metal surface, and anti-corrosion paint is uniformly stirred before used; a layer of epoxy zinc-rich primer is coated on the outer wall of the oil tank with a dry film thickness of 60-80 [mu]m; a layer of epoxy mica ironanti-corrosion paint is applied once with a dry film thickness of 100-150 [mu]m; two layers of chlorinated rubber finishing coat / polyurethane weather-resistant paint are applied twice, each layer is80[mu]m thick, and the total dry film thickness of the tank outer wall is not smaller than 300 [mu]m; the tank-bottom inner surface, the tank-top inner surface and the tank inner walls are painted ina mode that primer is applied once and finishing coat is applied by four times, wherein primer is epoxy zinc-rich primer, the dry film thickness is 75 [mu]m, anti-static paint for a storage tank is adopted as the finishing coat during the four times, each layer is 100-150 [mu]m, the total dry film thickness is not smaller than 300 [mu]m, and the anti-corrosion paint is applied through a method ofcombining a brush coating method and a roller coating method. The anti-corrosion process is rigorous in operation step, and can uniformly coat paint on the tank body wall surface, so that the tank body is not liable to corrode and is longer in service life.

Description

technical field [0001] The invention relates to a process, in particular to an anti-corrosion process based on oil tanks of gas stations. Background technique [0002] Petroleum, also known as crude oil, is a viscous, dark brown (sometimes greenish) liquid. There are oil reserves in parts of the upper crust. It is composed of a mixture of different hydrocarbons, and its main component is alkanes. In addition, petroleum also contains elements such as sulfur, oxygen, nitrogen, phosphorus, and vanadium. Petroleum is mainly used as fuel oil and gasoline, which constitute one of the most important primary energy sources in the world. Petroleum is also a raw material for many chemical industry products such as solutions, fertilizers, pesticides and plastics. Oil is mostly hydrocarbons. It is composed of a mixture of different hydrocarbons. The chemical elements that make up petroleum are mainly carbon (83% ~ 87%), hydrogen (11% ~ 14%), and the rest are sulfur (0.06% ~ 0.8%), n...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the existing oil tank anti-corrosion spraying process is not up to standard, and under the influence of underground temperature, humidity and pH, etc., it often causes oil tank corrosion and affects the service life of the oil tank. The anti-corrosion process of station oil tanks, the anti-corrosion process is rigorous in operation steps, and can be evenly applied to the wall of the tank body, making the tank body not easy to corrode and having a longer service life. Under the influence of humidity and pH, etc., it often causes corrosion of the oil tank and affects the service life of the oil tank

[0005] To sum up, the beneficial effects of the present invention are: the anti-corrosion process has rigorous operation steps and can be evenly applied to the wall surface of the tank body, making the tank body less prone to corrosion and having a longer service life. , Under the influence of underground temperature, humidity and pH, etc., it often causes corrosion of the oil tank and affects the service life of the oil tank