A method and system for recommending a corrosion protection coating strategy for a refinery

Abstract

The application discloses a kind of refinery anticorrosive coating coating strategy recommendation method and system, belong to anticorrosive coating technical field.The system includes anticorrosive coating database, anticorrosive coating classification module, anticorrosive coating preliminary selection module, anticorrosive coating optimization module, anticorrosive coating final selection module, display input module.The recommendation method and system provided by the application fully consider the state of refinery device coating coating, the substrate of refinery device, the surface layer material of refinery device, the operating temperature of medium in refinery device, the atmospheric corrosion grade where refinery device is located and other factors, and the selection of different coating types and thickness is set specifically, which effectively ensures the rationality and scientificity of coating type and thickness selection, reduces production cost while ensuring coating quality, and improves the economic benefit of enterprise.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of anticorrosive coating, and particularly relates to a method and system for recommending an anticorrosive coating painting strategy for a refining enterprise. BACKGROUND

[0002] The effect of anticorrosive coating of a production device of a refining enterprise relates to safety, investment economy and many other aspects, and is of great significance to the appearance image, operation safety and long-period stable operation of the device. However, the anticorrosive coating of the device and the tank of the refining enterprise generally has problems such as early failure and short service life, and the actual effect is not ideal, which seriously affects the appearance image, production safety and economic benefits of the enterprise.

[0003] The reason is that there are various problems in the management, technology, operation and maintenance of the anticorrosive coating of the refining enterprise, mainly including the following aspects: the management aspect includes that the existing anticorrosive coating management requirement content is too simple, lacks operability, the relevant management personnel lack professional knowledge, the construction process record is incomplete and the archives are incomplete; the technical aspect includes that the coating selection is unreasonable, the early failure caused by the welding seam corner not being pre-coated, the cracking and falling of the anticorrosive coating of the pipeline without heat preservation and at a high temperature (60-120℃), etc.; the operation and repair aspect includes that the coating maintenance surface treatment is not up to standard, the corrosion caused by the coating omission of the steel structure corner, the serious corrosion of the water accumulation on the steel structure platform, etc. Among them, whether the coating selection is reasonable directly relates to the quality of the coating and directly affects the anticorrosion and long-term stable operation of the device. In the existing technology, there is no platform specially used for the anticorrosive coating.

[0004] In view of this, the present application provides a method and system for recommending an anticorrosive coating painting strategy for a refining enterprise. SUMMARY

[0005] In view of the deficiencies in the prior art, one of the purposes of the present application is to provide a system for recommending an anticorrosive coating painting strategy for a refining enterprise, so as to realize the reasonable selection of the coating process under different enterprises, different devices and different working conditions.

[0006] Another purpose of the present application is to provide a method for selecting an anticorrosive coating painting strategy for a refining enterprise by using the above system, so as to realize the scientificity and rationality of the design of the anticorrosive coating painting process of the refining enterprise.

[0007] In order to achieve the above purposes, the present application adopts the following technical solutions:

[0008] A system for recommending an anticorrosive coating painting strategy for a refining enterprise, comprising:

[0009] An anticorrosive coating database for storing different anticorrosive coating information and forming different coating sets;

[0010] a display input module configured to store information of different refining devices of a refining enterprise, and extract and output the information of the refining devices to corresponding modules;

[0011] a corrosion-resistant coating classification module configured to receive the coating state information of the refining devices output by the display input module, extract a corresponding coating candidate set from the corrosion-resistant coating database based on the coating state information of the refining devices, and output the coating candidate set to a corrosion-resistant coating preliminary selection module or a corrosion-resistant coating preferred selection module;

[0012] the corrosion-resistant coating preliminary selection module is configured to receive the substrate information of the refining devices output by the display input module, determine a corresponding coating type from the coating candidate set output by the corrosion-resistant coating classification module based on the substrate information of the refining devices, obtain a coating preliminary selection set, and output the coating preliminary selection set to the corrosion-resistant coating preferred selection module;

[0013] the corrosion-resistant coating preferred selection module is configured to receive the surface material information of the refining devices output by the display input module, determine a corresponding coating type from the coating preliminary selection set output by the corrosion-resistant coating preliminary selection module or the coating candidate set output by the corrosion-resistant coating classification module based on the surface material information of the refining devices, obtain a coating candidate set, and output the coating candidate set to the corrosion-resistant coating final selection module;

[0014] the corrosion-resistant coating final selection module is configured to receive the medium operating temperature and atmospheric corrosion grade information of the refining devices output by the display input module, determine a corresponding final selection coating process from the coating candidate set output by the corrosion-resistant coating preferred selection module based on the medium operating temperature and atmospheric corrosion grade information of the refining devices, and output the final selection coating process.

[0015] Meanwhile, the display input module obtains the final selection coating process information and displays the final selection coating process information.

[0016] As a further preferred technical solution of the present application, the coating information stored in the corrosion-resistant coating database is selected from one or more of the following: epoxy primer, epoxy zinc-rich paint, inorganic zinc-rich paint, epoxy glass flake paint, epoxy phenolic paint, silicone aluminum powder heat-resistant paint, epoxy modified paint, and low-surface treatment epoxy paint.

[0017] As a further preferred technical solution of the present application, the display input module stores one or more of the following: coating state information of the refining device, substrate information of the refining device, surface material information of the refining device, medium operating temperature of the refining device, and atmospheric corrosion grade information.

[0018] As a further preferred technical scheme of the present application, the coating state information of the refinery device is used to indicate whether the refinery device has been coated with anticorrosive coating; the base material information of the refinery device includes carbon steel / low alloy steel and stainless steel; the surface material information of the refinery device is used to indicate whether the surface of the base material of the refinery device is coated with thermal insulation layer; and the atmospheric corrosion grade information is divided into five grades, i.e. very low corrosivity, low corrosivity, medium corrosivity, high corrosivity and very high corrosivity.

[0019] Meanwhile, the present application also provides a method for selecting anticorrosive coating coating strategy of a refinery enterprise by using the system, which comprises the following steps:

[0020] S1, coating state information judgment of the refinery device: the anticorrosive coating classification module receives the coating state information of the refinery device output by the display input module and judges, if the refinery device has not been coated with anticorrosive coating, the anticorrosive coating classification module extracts coating candidate set one from the anticorrosive coating database and outputs to the anticorrosive coating preliminary selection module; if the refinery device has been coated with anticorrosive coating, the anticorrosive coating classification module extracts coating candidate set two from the anticorrosive coating database and outputs to the anticorrosive coating optimization module;

[0021] S2, base material information judgment of the refinery device: the anticorrosive coating preliminary selection module receives the base material information of the refinery device output by the display input module and judges, if the base material is carbon steel / low alloy steel, the anticorrosive coating preliminary selection module takes coating candidate set one as coating preliminary selection set one and outputs to the anticorrosive coating optimization module; if the base material is stainless steel, the anticorrosive coating preliminary selection module extracts coating preliminary selection set two from coating candidate set one and outputs to the anticorrosive coating optimization module;

[0022] S3, surface material information judgment of the refinery device: the anticorrosive coating optimization module receives the surface material information of the refinery device output by the display input module and judges, if there is no thermal insulation layer, the anticorrosive coating optimization module extracts coating candidate set one from coating preliminary selection set one and extracts coating candidate set two from coating candidate set two, and both are output to the anticorrosive coating final selection module; at the same time, final selection coating process one is extracted from coating preliminary selection set two;

[0023] if there is thermal insulation layer, the anticorrosive coating optimization module extracts coating candidate set three from coating preliminary selection set one and extracts coating candidate set four from coating candidate set two, and both are output to the anticorrosive coating final selection module; at the same time, final selection coating process two is extracted from coating preliminary selection set two;

[0024] S4, refinery device medium operating temperature and atmospheric corrosion grade information judgment: the anticorrosion coating final selection module receives the refinery device medium operating temperature and atmospheric corrosion grade information output by the display input module; if the anticorrosion coating final selection module receives the coating candidate set one or the coating candidate set two, the corresponding final selected coating process three is determined according to the different atmospheric corrosion grades; if the anticorrosion coating final selection module receives the coating candidate set three or the coating candidate set four, the corresponding final selected coating process four is determined according to the different refinery device medium operating temperatures.

[0025] As a further preferred technical scheme of the present application, the coating candidate set one comprises an epoxy primer, an epoxy zinc-rich paint, an inorganic zinc-rich paint, an epoxy glass flake paint, an epoxy phenolic paint and an organic silicon aluminum powder heat-resistant paint; the coating candidate set two comprises an epoxy modified paint, a low surface treatment epoxy paint, an epoxy phenolic paint and an organic silicon aluminum powder heat-resistant paint.

[0026] As a further preferred technical scheme of the present application, the coating candidate set one comprises an epoxy primer, an epoxy zinc-rich paint, an inorganic zinc-rich paint, an epoxy glass flake paint, an epoxy phenolic paint and an organic silicon aluminum powder heat-resistant paint; the coating candidate set two comprises an epoxy modified paint, a low surface treatment epoxy paint, an epoxy phenolic paint and an organic silicon aluminum powder heat-resistant paint.

[0027] As a further preferred technical scheme of the present application, the coating candidate set one comprises an epoxy primer, an epoxy zinc-rich paint, an inorganic zinc-rich paint, an epoxy glass flake paint, an epoxy phenolic paint and an organic silicon aluminum powder heat-resistant paint; the coating candidate set two comprises an epoxy modified paint, a low surface treatment epoxy paint, an epoxy phenolic paint and an organic silicon aluminum powder heat-resistant paint.

[0028] As a further preferred technical scheme of the present application, in step S4, when the anticorrosion coating final selection module receives the coating candidate set three, the refinery device medium operating temperature is divided into different temperature ranges of -20-120℃, 100-200℃, 200-400℃ and 400-600℃ to determine the final selected coating process; when the anticorrosion coating final selection module receives the coating candidate set four, the refinery device medium operating temperature is divided into different temperature ranges of -20-200℃ and 200-600℃ to determine the final selected coating process.

[0029] Compared with the prior art, the present application has the following beneficial effects:

[0030] The refinery enterprise anticorrosion coating coating strategy recommendation method and system provided by the present application fully considers the state of the coating of the refinery device, the base material of the refinery device, the surface material of the refinery device, the operating temperature of the medium in the refinery device, the atmospheric corrosion grade where the refinery device is located and other factors, and sets the selection of different coating types and thicknesses in a targeted manner, thereby effectively ensuring the rationality and scientificity of the selection of coating types and thicknesses, reducing the production cost while ensuring the coating quality, and improving the economic benefit of the enterprise. BRIEF DESCRIPTION OF DRAWINGS

[0031] Fig. 1 A flowchart of the refinery anticorrosion coating painting strategy recommendation system and method of the present application is shown in the figure;

[0032] Fig. 2 A first part of the flowchart of the refinery anticorrosion coating painting strategy recommendation system and method of the present application is shown in the figure;

[0033] Fig. 3 A second part of the flowchart of the refinery anticorrosion coating painting strategy recommendation system and method of the present application is shown in the figure. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0035] Please refer to Figs. 1-3 A refinery anticorrosion coating painting strategy recommendation system comprises:

[0036] An anticorrosion coating database is used to store different anticorrosion coating information and form different coating sets;

[0037] A display input module is used to store different refinery device information of a refinery, and simultaneously extract and output the refinery device information to corresponding modules;

[0038] An anticorrosion coating classification module is used to receive the coating state information of a refinery device output by the display input module, extract the corresponding coating candidate set from the anticorrosion coating database based on the coating state information of the refinery device, and output to an anticorrosion coating preliminary selection module or an anticorrosion coating preferred selection module;

[0039] An anticorrosion coating preliminary selection module is used to receive the substrate information of a refinery device output by the display input module, determine the corresponding coating type from the coating candidate set output by the anticorrosion coating classification module based on the substrate information of the refinery device, obtain a coating preliminary selection set, and output to an anticorrosion coating preferred selection module;

[0040] An anticorrosion coating preferred selection module is used to receive the surface material information of a refinery device output by the display input module, determine the corresponding coating type from the coating preliminary selection set output by the anticorrosion coating preliminary selection module or the coating candidate set output by the anticorrosion coating classification module based on the surface material information of the refinery device, obtain a coating candidate set, and output to an anticorrosion coating final selection module;

[0041] The anticorrosion coating final selection module is configured to receive the medium operating temperature of the refining device and the atmospheric corrosion grade information output by the display input module; and determine the corresponding final selection coating process from the coating candidate set output by the anticorrosion coating preferred selection module based on the medium operating temperature of the refining device and the atmospheric corrosion grade information.

[0042] Meanwhile, the display input module acquires the final selection coating process information and displays it.

[0043] In some embodiments, the coating information stored in the anticorrosion coating database is selected from one or more of an epoxy primer, an epoxy zinc-rich paint, an inorganic zinc-rich paint, an epoxy glass flake paint, an epoxy phenolic paint, a silicone aluminum powder heat-resistant paint, an epoxy modified paint, and a low-surface treatment epoxy paint.

[0044] The epoxy primer is mainly used on some iron machines such as cast iron and carbon steel, and mainly plays a role in corrosion and rust prevention, fog prevention, salt prevention, etc. The adhesion of the epoxy primer is particularly good, and it can also play a role in rust and corrosion prevention when used on steel metal materials.

[0045] The epoxy zinc-rich primer is a high-solid epoxy primer prepared by using zinc powder as a filler, solid epoxy resin as a base material, polyamide resin or amine adduct as a curing agent, and adding appropriate mixed solvents. The content of zinc powder in the coating is usually more than 85%, so as to form a continuous and tight coating and closely contact with the metal. Since the potential of zinc is lower than that of steel when the coating film is eroded, the zinc in the coating film is anode and is eroded first, the steel substrate is cathode and is protected, and the zinc acts as a sacrificial anode.

[0046] The inorganic zinc-rich paint is a film-forming material using inorganic polymers (such as silicates, phosphates, and dichromates) as a film-forming material, and zinc powder reacts with it to form a zinc-iron complex on the metal surface, forming a solid protective coating film. The inorganic zinc-rich paint uses a large amount of high-purity, fine-particle zinc powder filler, which can play an electrochemical protection role. Zinc is more active than iron, and its potential is more negative than that of iron. In an electrolyte solution, zinc atoms easily lose electrons. Even if the coating is partially damaged, the steel surface will not be corroded, because zinc acts as a sacrificial anode, the anode region loses electrons, and the cathode region gains electrons, thereby protecting the steel. The inorganic zinc-rich paint using silicate or oligomer as a film-forming material has good adhesion to the steel surface, good heat and corrosion resistance, and is not prone to aging, and has excellent weather resistance. In addition, the zinc powder on the surface of the coating forms a stable substance zinc salt and zinc complex that is difficult to dissolve, which can prevent oxygen, water, and salt from corroding the steel.

[0047] Epoxy glass flake anticorrosive paint, also known as thick coating type epoxy glass flake anticorrosive paint, is composed of epoxy resin as base material, glass flake as main antirust pigment, other antirust pigments, fillers, additives, organic solvents, epoxy curing agent, etc. It has excellent acid, alkali, oil, seawater resistance, wear resistance, mechanical properties and adhesion, and can withstand dry heat up to 150℃.

[0048] Epoxy phenolic paint, also known as epoxy phenolic anticorrosive paint, epoxy phenolic anticorrosive paint, epoxy phenolic tank paint, belongs to two-component paint. Epoxy phenolic paint can withstand high temperature of 300℃, has excellent corrosion resistance (such as resistance to acid, alkali, solvent, oil, etc.); phenolic resin paint is suitable for steel equipment with thermal insulation layer in petrochemical plants, pipeline outer wall anticorrosive coating, and is commonly used as anticorrosive coating for thermal insulation pipeline, tank, oil tank, motor, tank, pipeline inner wall.

[0049] Organic silicon aluminum powder heat-resistant paint is made of organic silicon high-temperature resistant resin, aluminum powder, additives, solvents, etc. It has excellent high-temperature resistance and is mainly used for coating steel parts of high-temperature equipment such as engine shell, chimney, exhaust pipe, oven, furnace, etc., which can withstand high temperature of 100-600℃ for a long time.

[0050] Epoxy modified paint is mainly designed for heavy corrosion protection areas such as splash zone, tidal zone, underwater and buried areas, and can also be used for maintenance and maintenance of the above areas. It can continue to cure under water and is suitable for tidal and wave environments.

[0051] Low surface treatment epoxy paint is a two-component thick paste type low surface treatment epoxy resin paint with low solvent content and high volume solid content, which is suitable for new construction and maintenance of components.

[0052] It can be understood that the above-mentioned coatings are all prior art and can be routinely selected and used by those skilled in the art, and the specific grade or specification is not specifically limited in the present embodiment.

[0053] In some embodiments, the display input module stores refinery information including one or more of refinery coating condition information, refinery substrate information, refinery surface material information, refinery medium operating temperature, atmospheric corrosion level information.

[0054] It can be understood that the coating state information of the refinery device is used to indicate whether the refinery device has been coated with a corrosion-resistant coating; generally, the newly built one is not coated with a corrosion-resistant coating; the maintenance engineering is usually coated with a corrosion-resistant coating. The refinery device substrate information is used for the type of substrate, mainly including two categories of carbon steel / low alloy steel and stainless steel. The surface material information of the refinery device is used to indicate whether the surface of the refinery device substrate is covered with a thermal insulation layer, i.e. with or without a thermal insulation layer. The medium operating temperature of the refinery device is the temperature of the device operation, which is determined according to the actual process parameters. The atmospheric corrosion grade information can be divided into five levels of very low corrosion, low corrosion, medium corrosion, high corrosion and very high corrosion, corresponding to C1, C2, C3, C4 and C5 respectively; specifically, the atmospheric corrosion grade information is obtained by the display input module from the external environment temperature of the refinery device, the SO2 concentration in the atmosphere, the atmospheric humidity, the atmospheric salinity, whether the refinery device is located indoors and other information in the refinery device information, and is determined according to the ISO9223-2012 standard.

[0055] Further referring to Fig. 1 The present application also provides a method for selecting a corrosion-resistant coating coating strategy of a refinery enterprise by the above-mentioned system, comprising the following steps:

[0056] S1, coating state information of the refinery device is judged: the corrosion-resistant coating classification module receives the coating state information of the refinery device output by the display input module and judges, if the corrosion-resistant coating is not coated, the corrosion-resistant coating classification module extracts coating candidate set one from the corrosion-resistant coating database and outputs to the corrosion-resistant coating preliminary selection module; if the corrosion-resistant coating is coated, the corrosion-resistant coating classification module extracts coating candidate set two from the corrosion-resistant coating database and outputs to the corrosion-resistant coating optimization module;

[0057] S2, the information of the refinery device substrate is judged: the corrosion-resistant coating preliminary selection module receives the information of the refinery device substrate output by the display input module and judges, if it is carbon steel / low alloy steel, the corrosion-resistant coating preliminary selection module takes coating candidate set one as coating preliminary selection set one and outputs to the corrosion-resistant coating optimization module; if it is stainless steel, the corrosion-resistant coating preliminary selection module extracts coating preliminary selection set two from coating candidate set one and outputs to the corrosion-resistant coating optimization module;

[0058] S3, the surface material information of the refinery device is judged: the corrosion-resistant coating optimization module receives the surface material information of the refinery device output by the display input module and judges, if there is no thermal insulation layer, the corrosion-resistant coating optimization module extracts coating candidate set one from coating preliminary selection set one and coating candidate set two from coating candidate set two, and outputs to the corrosion-resistant coating final selection module; at the same time, final selection coating process one is extracted from coating preliminary selection set two;

[0059] If the coating is insulated, the anticorrosion coating selection module extracts the coating candidate set three from the coating preliminary selection set one and the coating candidate set four from the coating preliminary selection set two, and outputs them to the anticorrosion coating final selection module; at the same time, the final coating process two is extracted from the coating preliminary selection set two.

[0060] S4, refining plant medium operating temperature and atmospheric corrosion grade information judgment: the anticorrosion coating final selection module receives the refining plant medium operating temperature and atmospheric corrosion grade information output by the display input module; if the anticorrosion coating final selection module receives the coating candidate set one or the coating candidate set two, the corresponding final coating process three is determined according to the different atmospheric corrosion grades; if the anticorrosion coating final selection module receives the coating candidate set three or the coating candidate set four, the corresponding final coating process four is determined according to the different refining plant medium operating temperatures.

[0061] In some embodiments, the coating candidate set one includes epoxy primer, epoxy zinc-rich paint, inorganic zinc-rich paint, epoxy glass flake paint, epoxy phenolic paint, silicone aluminum powder heat-resistant paint; the coating candidate set two includes epoxy modified paint, low surface treatment epoxy paint, epoxy phenolic paint, silicone aluminum powder heat-resistant paint.

[0062] In some embodiments, the coating preliminary selection set two includes epoxy primer, epoxy phenolic paint.

[0063] In some embodiments, the coating candidate set one includes epoxy primer, epoxy zinc-rich paint, inorganic zinc-rich paint; the coating candidate set two includes epoxy modified paint, low surface treatment epoxy paint; the coating candidate set three includes epoxy glass flake paint, epoxy phenolic paint, inorganic zinc-rich paint, silicone aluminum powder heat-resistant paint; the coating candidate set four includes epoxy phenolic paint, silicone aluminum powder heat-resistant paint.

[0064] In some embodiments, in step S4, when the anticorrosion coating final selection module receives the coating candidate set three, the refining plant medium operating temperature is divided into different temperature ranges of -20-120℃, 100-200℃, 200-400℃, 400-600℃ to determine the final coating process; when the anticorrosion coating final selection module receives the coating candidate set four, the refining plant medium operating temperature is divided into different temperature ranges of -20-200℃, 200-600℃ to determine the final coating process.

[0065] It needs to be particularly emphasized that the coating process includes coating primer, intermediate paint and topcoat, and the selection of primer, intermediate paint and topcoat should be matched with each other. It needs to be particularly explained that the selection of coating is not unique, and the recommended coating process in the application is the most suitable coating process, and it is also feasible to select coating materials with more performance on the recommended coating process, but it will not be selected in actual design and production; at the same time, it needs to be explained that due to the variety of coatings, the specific selection of coating types is also not unique, such as fluorocarbon or polysiloxane topcoat under C5 grade environment, and the provided coating process in the system is only the relatively optimal coating process.

[0066] The application mainly considers the conditions including atmospheric corrosion grade, state of coating of refining device, base material of refining device, surface material of refining device, and operating temperature of medium in refining device in the selection of coating. The atmospheric corrosion grade reported in the existing documents and standards is mainly divided according to the concentration of corrosive medium such as SOx or NOx in the atmosphere, and is not divided according to the operating temperature of medium in refining device. The application divides the atmospheric corrosion grade of different regions of domestic refining enterprises and different device areas of the same enterprise, and is more accurate than the previous coating process determination. In addition, the system sets a coating matching screening function, that is, after inputting new construction / maintenance, atmospheric corrosion grade, operating temperature, base material type, whether there is a thermal insulation layer and other factors, one or several recommended coating matching systems can be displayed.

[0067] The application will be further described below in combination with specific embodiments.

[0068] Embodiment 1

[0069] A coating strategy recommendation method for a refining enterprise anticorrosion coating, comprising an anticorrosion coating database, an anticorrosion coating classification module, an anticorrosion coating preliminary selection module, an anticorrosion coating optimization module, an anticorrosion coating final selection module, and a display input module.

[0070] The anticorrosion coating database stores various types of anticorrosion coatings, such as epoxy primer, epoxy zinc-rich paint, inorganic zinc-rich paint, epoxy glass flake paint, epoxy phenolic paint, silicone aluminum powder heat-resistant paint, epoxy modified paint, and low-surface treatment epoxy paint.

[0071] The display input module extracts decision information from the entered refinery information, including: refinery coating state information, refinery substrate information, refinery surface material information, refinery medium operating temperature, atmospheric corrosion grade information, the refinery coating state information is used to indicate whether the refinery has been coated with a corrosion-resistant coating, the refinery substrate information includes carbon steel / low alloy steel, or stainless steel, the refinery surface material information is used to display whether the surface of the refinery substrate is covered with a thermal insulation layer, and the atmospheric corrosion grade information is divided into five categories: C1, C2, C3, C4, and C5.

[0072] The display input module sends the extracted refinery coating state information to the corrosion-resistant coating classification module. If the refinery coating state information is not coated with a corrosion-resistant coating, the corrosion-resistant coating classification module extracts coating candidate set one: epoxy primer, epoxy zinc-rich paint, inorganic zinc-rich paint, epoxy glass flake paint, epoxy phenolic paint, and silicone aluminum powder heat-resistant paint from the corrosion-resistant coating database, and outputs to the corrosion-resistant coating preliminary selection module.

[0073] If the refinery coating state information is coated with a corrosion-resistant coating, the corrosion-resistant coating classification module extracts coating candidate set two: epoxy modified paint, low-surface treatment epoxy paint, epoxy phenolic paint, and organic silicon aluminum powder heat-resistant paint from the corrosion-resistant coating database, and outputs to the corrosion-resistant coating preferred module.

[0074] The display input module sends the extracted refinery substrate information to the corrosion-resistant coating preliminary selection module. If the substrate of the refinery is carbon steel / low alloy steel, the corrosion-resistant coating preliminary selection module takes coating candidate set one as coating preliminary selection set one, and outputs to the corrosion-resistant coating preferred module. If the substrate of the refinery is stainless steel, the corrosion-resistant coating preliminary selection module extracts epoxy primer and epoxy phenolic paint from coating candidate set one as coating preliminary selection set two, and outputs to the corrosion-resistant coating preferred module.

[0075] The display input module sends the extracted refinery surface material information to the corrosion-resistant coating preferred module. If the surface material of the refinery has no thermal insulation layer, the corrosion-resistant coating preferred module extracts epoxy primer, epoxy zinc-rich paint, and inorganic zinc-rich paint from coating preliminary selection set one as coating candidate set one, extracts epoxy modified paint and low-surface treatment epoxy paint from coating candidate set two as coating candidate set two, and outputs to the corrosion-resistant coating final selection module. From the coating preliminary selection set two, 60 μm epoxy primer + 60 μm aliphatic polyurethane topcoat is extracted as the final selected coating process.

[0076] If the surface material of the refining and chemical device has a heat preservation layer, the anticorrosion coating preferred module extracts the epoxy glass flake paint, epoxy phenolic paint, inorganic zinc-rich paint, and silicone aluminum powder heat-resistant paint from the coating initial selection set one as the coating candidate set three, extracts the epoxy phenolic paint and silicone aluminum powder heat-resistant paint from the coating candidate set two as the coating candidate set four, and outputs them to the anticorrosion coating final selection module; extracts the 100 μm epoxy phenolic primer + 100 μm epoxy phenolic topcoat from the coating initial selection set two as the final selection coating process;

[0077] The display input module inputs the extracted refining and chemical device medium operating temperature and atmospheric corrosion grade information to the anticorrosion coating final selection module. If the anticorrosion coating final selection module receives the coating candidate set three, it selects the corresponding coating process according to the operating temperature range: -20-120℃, 100-200℃, 200-400℃, and 400-600℃. Specifically, in the range of -20-120℃, 300 μm epoxy glass flake primer + 300 μm epoxy glass flake topcoat or 150 μm epoxy phenolic primer + 150 μm epoxy phenolic topcoat is selected; in the range of 100-200℃, 150 μm epoxy phenolic primer + 150 μm epoxy phenolic topcoat is selected; in the range of 200-400℃, 70 μm inorganic zinc-rich primer + 60 μm silicone heat-resistant topcoat is selected; and in the range of 400-600℃, 40 μm silicone aluminum powder heat-resistant primer + 20 μm silicone heat-resistant topcoat is selected.

[0078] If the anticorrosion coating final selection module receives the coating candidate set four, it selects 150 μm epoxy phenolic primer + 150 μm epoxy phenolic topcoat and 40 μm silicone aluminum powder heat-resistant topcoat + 20 μm silicone heat-resistant topcoat as the final selection coating process under the two operating temperature ranges according to the operating temperature range: -20-200℃ and 200-600℃.

[0079] If the anticorrosion coating final selection module receives the coating candidate set one, different final selection coating processes are selected according to the atmospheric corrosion grade: C3, C4, C5, in particular, for the C3 grade, 60 μm epoxy primer + 120 μm epoxy cloud iron intermediate paint + 80 μm aliphatic polyurethane topcoat or 60 μm epoxy zinc-rich primer + 120 μm epoxy cloud iron intermediate paint + 80 μm aliphatic polyurethane topcoat or 60 μm inorganic zinc-rich primer + 120 μm epoxy cloud iron intermediate paint + 80 μm aliphatic polyurethane topcoat are selected; for the C4 grade, 80 μm epoxy primer + 120 μm epoxy cloud iron intermediate paint + 80 μm aliphatic polyurethane topcoat or 80 μm epoxy zinc-rich primer + 120 μm epoxy cloud iron intermediate paint + 80 μm aliphatic polyurethane topcoat or 60 μm inorganic zinc-rich primer + 120 μm epoxy cloud iron intermediate paint + 80 μm aliphatic polyurethane topcoat are selected; for the C5 grade, 80 μm epoxy zinc-rich primer + 160 μm epoxy cloud iron intermediate paint + 80 μm aliphatic polyurethane topcoat or 80 μm inorganic zinc-rich primer + 160 μm epoxy cloud iron intermediate paint + 80 μm aliphatic polyurethane topcoat are selected.

[0080] If the anticorrosion coating final selection module receives the coating candidate set two, different coating processes are selected according to the atmospheric corrosion grade: C4 or C5, in particular, for the C4 grade, 100 μm modified epoxy primer + 100 μm epoxy cloud iron intermediate paint + 60 μm aliphatic polyurethane topcoat are selected; for the C5 grade, 100 μm low surface treatment epoxy primer + 120 μm epoxy cloud iron intermediate paint + 80 μm aliphatic polyurethane topcoat are selected.

[0081] The display input module also acquires the final selection coating process and displays.

[0082] Application Example 1

[0083] The recommended method in Example 1 is applied to a new set of oil refining devices of a petrochemical enterprise along the Yangtze River in China, and the anticorrosion coating needs to be implemented for the equipment, pipelines and steel structures in the device. Before formal brushing, the coating process design of the anticorrosion coating needs to be carried out, first, the corrosion grade is determined according to the geographical location of the area along the Yangtze River, then the new project, atmospheric corrosion grade, operating temperature, substrate type, whether with insulation and other factors are input into the system, the system will automatically present the recommended coating process, as shown in Table 1 below. This way is more convenient and faster than the previous way of checking and selecting standards.

[0084] Table 1 Design factor input platform provides coating matching recommendation

[0085]

[0086]

[0087] Application Example 2

[0088] The recommended method in Example 1 was applied to an in-service refinery unit of a domestic coastal petrochemical enterprise, which has been running for many years. One of the vessels has a poor appearance and needs to be maintained as a whole. Before formal painting, the design of the anticorrosion coating process is required. First, the corrosion grade is determined according to the geographical location of the coastal area. Then, the new project, atmospheric corrosion grade, operating temperature, substrate type, and whether it is with insulation are input into the system. The system will automatically present the recommended coating process, as shown in Table 2 below. This method is more convenient and faster than the previous method of checking standards for selection.

[0089] Table 2 Design factor input platform provides coating matching recommendation

[0090]

[0091] The technical concept of the present application is illustrated by the above examples, but the present application is not limited to the above examples, i.e. it does not mean that the present application must rely on the above examples to be implemented. Those skilled in the art should understand that any improvement on the present application, equivalent replacement of individual raw materials of the present application product, addition of auxiliary ingredients, selection of specific methods, etc. all fall within the scope of protection and disclosure of the present application.

Claims

1. A system for recommending anti-corrosion coating strategies for refining and chemical enterprises, characterized in that, include: A database of anti-corrosion coatings is used to store information on different anti-corrosion coatings and to form different sets of coatings. The display input module is used to store information about different refining and chemical units in a refining and chemical enterprise. Simultaneously, the information of the refining and chemical processing equipment is extracted and output to the corresponding module; The anti-corrosion coating classification module is used to receive the coating status information of the refining and chemical equipment output by the display input module; Based on the coating status information of the refining unit, the corresponding coating candidate set is extracted from the anti-corrosion coating database and output to the anti-corrosion coating preliminary selection module or the anti-corrosion coating optimization module. The anti-corrosion coating preliminary selection module is used to receive the base material information of the refining and chemical equipment output by the display input module; Based on the substrate information of the refining and chemical equipment, the corresponding coating types are determined from the coating candidate set output by the anti-corrosion coating classification module to obtain the initial coating selection set, which is then output to the anti-corrosion coating optimization module. The anti-corrosion coating selection module is used to receive information on the surface material of the refining and chemical equipment output by the display input module; Based on the surface material information of the refining unit, the corresponding coating type is determined from the coating preliminary selection set output by the anti-corrosion coating preliminary selection module or the coating candidate set output by the anti-corrosion coating classification module, and the coating candidate set is obtained and output to the anti-corrosion coating final selection module. The anti-corrosion coating final selection module is used to receive information on the operating temperature of the refining and chemical unit medium and the atmospheric corrosion level output by the display input module; Based on the information on the operating temperature of the medium and the atmospheric corrosion level of the refining unit, the corresponding final coating process is determined from the coating candidate set output by the anti-corrosion coating optimization module. Simultaneously, the display input module acquires and displays the final selected coating process information; The display input module stores one or more of the following information about the refining and chemical equipment: coating status information, substrate information, surface material information, operating temperature of the medium, and atmospheric corrosion level. The coating status information of the refining unit is used to indicate whether the refining unit has been coated with an anti-corrosion coating; the substrate information of the refining unit includes carbon steel / low alloy steel and stainless steel; the surface material information of the refining unit is used to indicate whether the surface of the substrate of the refining unit is covered with a heat insulation layer; the atmospheric corrosion level information is divided into five levels: very low corrosion, low corrosion, medium corrosion, high corrosion, and very high corrosion.

2. The anti-corrosion coating strategy recommendation system for refining and chemical enterprises according to claim 1, characterized in that, The coating information stored in the anti-corrosion coating database is selected from one or more of the following: epoxy primer, epoxy zinc-rich paint, inorganic zinc-rich paint, epoxy glass flake paint, epoxy phenolic paint, organosilicon aluminum powder heat-resistant paint, epoxy modified paint, and low surface treatment epoxy paint.

3. A method for selecting anti-corrosion coating strategies for refining and chemical enterprises using the system described in any one of claims 1 to 2, characterized in that, Includes the following steps: S1. Refining and Chemical Equipment Coating Status Information Judgment: The anti-corrosion coating classification module receives the coating status information of the refining and chemical equipment output by the display input module and makes a judgment. If no anti-corrosion coating is applied, the anti-corrosion coating classification module extracts the first set of coating candidates from the anti-corrosion coating database and outputs it to the anti-corrosion coating preliminary selection module; if an anti-corrosion coating is applied, the anti-corrosion coating classification module extracts the second set of coating candidates from the anti-corrosion coating database and outputs it to the anti-corrosion coating optimization module. S2. Refining and Chemical Equipment Substrate Information Judgment: The anti-corrosion coating preliminary selection module receives the refining and chemical equipment substrate information output by the display input module and makes a judgment. If it is carbon steel / low alloy steel, the anti-corrosion coating preliminary selection module uses coating candidate set one as coating preliminary selection set one and outputs it to the anti-corrosion coating optimization module; if it is stainless steel, the anti-corrosion coating preliminary selection module extracts coating preliminary selection set two from coating candidate set one and outputs it to the anti-corrosion coating optimization module. S3. Refining Unit Surface Material Information Judgment: The anti-corrosion coating selection module receives and judges the surface material information of the refining unit output by the display input module. If there is no insulation layer, the anti-corrosion coating selection module extracts the coating candidate set one from the initial coating selection set one and the coating candidate set two from the coating candidate set two, and outputs both to the anti-corrosion coating final selection module; at the same time, the final coating process one is extracted from the initial coating selection set two. If an insulation layer is applied, the anti-corrosion coating selection module extracts coating candidate set three from coating preliminary selection set one and coating candidate set four from coating candidate set two, and outputs both to the anti-corrosion coating final selection module; at the same time, it extracts final coating process two from coating preliminary selection set two. S4. Judgment of operating temperature and atmospheric corrosion level of refining and chemical unit medium: The anti-corrosion coating final selection module receives and displays the operating temperature and atmospheric corrosion level of the refining and chemical unit medium output by the input module. If the anti-corrosion coating final selection module receives coating candidate set one or coating candidate set two, then the corresponding final coating process three is determined according to the different atmospheric corrosion levels; if the anti-corrosion coating final selection module receives coating candidate set three or coating candidate set four, then the corresponding final coating process four is determined according to the different operating temperatures of the refining and chemical unit media.

4. The method according to claim 3, characterized in that, The first set of coating candidates includes epoxy primer, epoxy zinc-rich paint, inorganic zinc-rich paint, epoxy glass flake paint, epoxy phenolic paint, and organosilicon aluminum powder heat-resistant paint; the second set of coating candidates includes epoxy modified paint, low surface treatment epoxy paint, epoxy phenolic paint, and organosilicon aluminum powder heat-resistant paint.

5. The method according to claim 3, characterized in that, The second preliminary selection of coatings includes epoxy primer and epoxy phenolic paint.

6. The method according to claim 3, characterized in that, The first set of coating options includes epoxy primer, epoxy zinc-rich paint, and inorganic zinc-rich paint; the second set of coating options includes epoxy modified paint and low surface treatment epoxy paint; the third set of coating options includes epoxy glass flake paint, epoxy phenolic paint, inorganic zinc-rich paint, and organosilicon aluminum powder heat-resistant paint. The fourth set of coating options includes epoxy phenolic paint and organosilicon aluminum powder heat-resistant paint.

7. The method according to claim 3, characterized in that, In step S4, when the anti-corrosion coating final selection module receives coating candidate set three, the operating temperature of the refining and chemical unit medium is divided into different temperature ranges of -20~120℃, 100~200℃, 200~400℃, and 400~600℃ to determine the final coating process; when the anti-corrosion coating final selection module receives coating candidate set four, the operating temperature of the refining and chemical unit medium is divided into different temperature ranges of -20~200℃ and 200~600℃ to determine the final coating process.

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