Composite anti-corrosion plate A system structure

Abstract

The utility model discloses a composite anti-corrosion plate A system structure. The surface of the base body is sequentially provided with a primer layer, an adhesive layer and a Weigu plate A plate layer; wherein the Weigu plate A plate layer is formed by compounding a high-surface-energy plastic layer and a low-surface-energy plastic layer; the low-surface-energy plastic layer is arranged on the surface of the adhesive layer; and a protective strip is arranged at one end of the base body and is used for preventing the plate layer of the Weijiang plate A from falling off and expanding when deformation occurs. In the actual application process, the anti-corrosion plate A has high impact resistance which is far better than that of anti-corrosion materials such as glass flakes and glass fiber reinforced plastics, has high toughness and can bear external pressure caused by strong impact under the actual working condition. And meanwhile, excellent deformation resistance, high viscosity strength, tensile property and slurry scouring resistance are also realized. The anti-corrosion plate A system structure is almost suitable for various base bodies including carbon steel, concrete, bricks, glass fiber reinforced plastics and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of composite anticorrosive plate system structure, belong to building system and equipment etc. Anticorrosion technical field. BACKGROUND

[0002] In recent years, with the implementation of national environmental protection policy, a large number of thermal power plants are equipped with desulfurization system, also in order to promote the healthy development of industrial anticorrosion industry. In the field of energy saving and environmental protection, the state promotes the research and development of advanced energy saving and environmental protection technology, process and equipment, and speeds up the green upgrading of the entire manufacturing industry.

[0003] At present, with the increasingly stringent environmental protection regulations, power plant corrosion also actively responds to the concept of green environmental protection, and technological innovation is the most critical factor to promote the development of power plant corrosion. In the process of traditional corrosion-resistant material in power plant equipment corrosion, it is easy to produce quality problems of material, such as cracking, peeling, blistering and falling off of corrosion-resistant layer; In the process of construction, due to the presence of styrene in the corrosion-resistant material, its molecular weight is large, the density is high, it is easy to gather, and it also has the risk of flash explosion, which brings great safety hidden danger, so the requirement for on-site construction environment is high; In terms of temperature resistance, the main corrosion environment of flue is 90-150 DEG C, especially in the cold and hot intersection area, which can cause severe mechanical cracking failure of the lining material; In terms of wear resistance, due to the presence of water droplets in the high-speed flowing flue gas, it is easy to corrode the flue wall, especially the windward flue wall lining, in the whole desulfurization medium system, in addition to the dust carried by the flue gas, there are limestone slurry as absorbent and sulfide generated by desulfurization. When limestone slurry is sprayed from the slurry pump through the slurry pipe, it is pressed and sprayed out, and at the same time, it is washed on the surface of the lining layer during the reaction with SO2 in the flue gas, which has strong grinding ability to the lining layer in the self-weight falling body area of the absorption tower slurry. In view of the above characteristics of existing anticorrosion materials, and the problems encountered in actual production, it is also very important to increase the corrosion resistance, safety, wear resistance and green long-term effect of power plant equipment.

[0004] Therefore, according to the above characteristics, the performance and installation mode of the existing anticorrosion material may cause serious operation hidden trouble to a certain extent, which will bring higher maintenance cost and personnel cost to the whole project. SUMMARY

[0005] The technical problem to be solved by the utility model is that the existing anticorrosion material cannot meet the performance and installation requirements, and the utility model provides a kind of composite anticorrosive plate system structure, which can be used for carbon steel, concrete equipment, building matrix, water treatment facility water tank and chemical storage tank etc.

[0006] In order to solve the above technical problems, the utility model provides a kind of composite anticorrosion plate system structure, including base body and protective strip, the base body surface is equipped with primer layer, adhesive layer and solid plate material layer in proper order;Wherein, the solid plate material layer is composed of high surface energy plastic layer and low surface energy plastic layer;The low surface energy plastic layer is equipped on the surface of adhesive layer;

[0007] The protective strip is arranged at one end of the base body and adhered to the edge of the solid plate material layer, to prevent the solid plate material layer from falling off and swelling when deformation occurs.

[0008] The high surface energy plastic layer refers to a plastic layer with a surface energy of 40-45 mN / m, and the low surface energy plastic layer refers to a plastic layer with a surface energy of 30-35 mN / m.

[0009] In the present application, the solid plate is attached to the base body by primer and adhesive, and this structure has significant effect on corrosion prevention and safety in desulfurization equipment.

[0010] The protective strip is a device with corrosion resistance and adjustment property that can be used in corrosive conditions. Compared with traditional materials, it has the characteristics of integrity and unity.

[0011] Preferably, the material of the protective strip is glass steel.

[0012] More preferably, the glass steel is provided with a metal edge seal.

[0013] Preferably, the surface of the solid plate material layer is also provided with a shape memory self-repairing coating.

[0014] Preferably, the adhesive layer is a polyurethane asphalt rubber body.

[0015] Preferably, the material of the high surface energy plastic layer is polycarbonate, polyether ketone, etc.

[0016] The polycarbonate, such as poly carbonate, has excellent impact resistance and transparency, with a surface energy of 42-44 mN / m.

[0017] The polyether ketone (PEEK) has a surface energy of about 43 mN / m, with excellent high-temperature resistance and mechanical strength.

[0018] Preferably, the material of the low surface energy plastic layer is polypropylene, high density polyethylene, or polyvinyl chloride, etc., with a surface energy of 30-35 mN / m.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] 1. The anticorrosive system can not only prevent hydrogen evolution corrosion from the principle of corrosion science, but also effectively prevent the metal surface from contacting corrosive acidic droplets.

[0021] 2. The adhesive layer is added in the anticorrosive system, the rubber-like adhesive layer has excellent corrosion resistance, has excellent aging resistance under the protection of the outer layer, can be firmly attached to the base body, and after solidification, the adhesive layer can effectively resist deformation caused by various internal stresses and temperature stresses of the desulfurization equipment, and prevent bulging, cracking, deformation and the like caused by stress.

[0022] 3. The deck material of the WIGU plate is composed of two layers of plastics, has very strong corrosion resistance and wear resistance, and can effectively prevent the anticorrosive material from being damaged.

[0023] 4. The desulfurization equipment is displaced due to various stresses during operation, and the protective strip arranged at one end of the base body can control the edge deck, prevent the deck from bulging and falling, and strengthen stability.

[0024] In summary, the composite anticorrosive deck provided by the utility model is more stable, more reasonable and more perfect, can effectively resist corrosion of the anticorrosive layer by acidic liquid, cracking caused by stress failure of the anticorrosive layer, falling of the anticorrosive layer, wear resistance failure of the anticorrosive layer, fire caused by high temperature of the anticorrosive layer, deformation of the anticorrosive layer caused by alternating cold and hot flue temperatures and the like. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model provides a composite anticorrosive deck system structure's schematic diagram;

[0026] Figure 2 The utility model discloses a composite anticorrosive deck system structure. Figure 1 The utility model discloses a composite anticorrosive deck system structure. DETAILED DESCRIPTION

[0027] In order to make the utility model more obvious and easy to understand, the preferred embodiment is described in detail as follows with reference to the drawings.

[0028] The raw materials used in the application and the embodiments, such as epoxy primer, adhesive and the like, are commercially available materials.

[0029] EMBODIMENT

[0030] The embodiment provides a composite anticorrosion plate system structure, as shown in the drawings, comprising a base body 1, wherein the surface of the base body 1 is sequentially provided with a primer layer 2, an adhesive layer 3 and a Wuguplate layer 4; wherein the Wuguplate layer 4 is composed of a high-surface-energy plastic layer 5 and a low-surface-energy plastic layer 6; the low-surface-energy plastic layer 6 is arranged on the surface of the adhesive layer 3; the high-surface-energy plastic layer 5 refers to a plastic layer with a surface energy of 40-45 mN / m, and the low-surface-energy plastic layer 6 refers to a plastic layer with a surface energy of 30-35 mN / m. Figures 1-2

[0031] One end of the base body is provided with a protective strip 8, the material of the protective strip 8 can be glass fiber reinforced plastic, and metal edges can be adopted around the protective strip 8; the protective strip 8 is adhered to the anticorrosion layer close to the anticorrosion edge by using an adhesive, and the setting of the protective strip 8 can effectively relieve the stress between the anticorrosion layer and the base body, and prevent the anticorrosion layer from falling off; the protective strip 8 is set as a countermeasure against the falling and swelling of the plate when the plate deforms. Compared with traditional materials, the protective strip 8 has the characteristics of integrity and unity. The protective strip 8 is a kind of corrosion-resistant and adjustable facility that can be used in a corrosion condition.

[0032] When the Wuguplate anticorrosion system is used for anticorrosion of a desulfurization device, the plate composite reinforced plate has certain chemical stability, and the combined action of internal stress and temperature stress caused by the influence of temperature in the use process causes the anticorrosion layer to deform, so in the construction process, the protective strip 8 is fixed at one end of the base body 1 as a countermeasure against the falling and swelling of the plate when the plate deforms.

[0033] The Wuguplate layer 4 is attached to the base body 1 by using a primer and an adhesive, and the structure has a significant effect on the anticorrosion safety of the desulfurization device.

[0034] The base body 1 is a carbon steel, concrete, brick or glass fiber reinforced plastic base body, and the surface is coated with an epoxy primer to form the primer layer 2; the primer can effectively prevent the metal base body from rusting and the concrete base body from aging. The adhesive used in the adhesive layer is a two-component polyurethane bituminous adhesive, which has high bonding strength and excellent tensile properties, and is widely used in the field of industrial anticorrosion. The Wuguplate layer 4 is a composite plate formed by compounding a polycarbonate or similar high-surface-energy plastic layer and a polypropylene or similar low-surface-energy plastic layer; in this material, the high-surface-energy plastic has the characteristics of strong adhesion, good processability and high rigidity; the low-surface-energy plastic has the characteristics of not easy to bond dirt, good wear resistance and easy to clean.

[0035] The surface of the Wuguplate layer 4 is coated with a shape memory self-repairing coating (the coating is not shown in the drawings). Figures 1-2 ​The shape memory self-repairing coating is triggered by heating shape memory effect using shape memory polymer materials (such as polycaprolactone-polyurethane, shape memory epoxy resin, etc.), and can achieve self-repairing function in the process of equipment operation, and increase surface tension, that is, in the case of specific stimulation (such as temperature change, corrosion intensity change, etc.), scratches, extrusion and other phenomena may appear on the surface of the anticorrosive coating, and the anticorrosive memory coating changes the interaction of molecular chains when subjected to external stimulation, so that the material returns to the pre-set shape.

[0036] The adhesive layer 3 is made of polyurethane bituminous rubber.

[0037] The material of the high surface energy plastic layer 5 is polycarbonate, polyether ketone, etc.

[0038] The polycarbonate, such as poly carbonate, has excellent impact resistance and transparency, and the surface energy is between 42-44mN / m;

[0039] The polyether ketone (PEEK) has a surface energy of about 43mN / m, and has excellent high temperature resistance and mechanical strength.

[0040] The low surface energy plastic layer 6 is polypropylene, high density polyethylene, or chlorinated polyvinyl chloride, etc., and the surface energy is between 30-35mN / m.

[0041] The composite anticorrosion plate system structure provided by the utility model is developed based on the original anticorrosion material, and the original anticorrosion material such as rubber anticorrosion material or glass flake anticorrosion material is improved based on the limitation in production and operation, the anticorrosion plate system structure is suitable for various substrates, including carbon steel, concrete and the like, a protection strip is arranged at one end of the substrate, the effect of the stress can be eliminated in the process of deformation of the anticorrosion material under the joint action of internal stress and temperature stress of the substrate, the anticorrosion material is not prone to falling off, bulging and the like in the process of use, and the integrity of the anticorrosion performance is ensured. Since the material has low thermal conductivity and has certain heat insulation performance, the anticorrosion system has the heat preservation performance in addition to other anticorrosion materials, and in general, since the use temperature of the adhesive is limited, the temperature of the Weigu plate lining anticorrosion system can be maintained at 93 DEG C and below for a long time. However, this is better than other anticorrosion systems, the glass flake anticorrosion lining contains styrene substances, which have a low flash point of about 32 DEG C, and contain other organic solvents such as toluene, xylene and aromatic hydrocarbon solvents, which also have a low flash point, increase the fire and explosion risk during construction and later on-site, and still need additional heat preservation method.

[0042] In terms of corrosion resistance and wear resistance, the main component of the Weigu plate material contains two layers of plastic composite, which has relatively strong stability. Due to the unique high-energy chemical bonds and intermolecular forces of the material itself, the stability is enhanced and it is not easy to be corroded. On the other hand, the special structure of the Weigu plate anticorrosion lining system makes it not easy to be corroded under the action of strong corrosive substances such as SO2, SO3, NO x , Cl - contained in flue gas, and the entire anticorrosion system is more stable.

[0043] In terms of intelligent monitoring, according to the actual needs of the project site, intelligent monitoring and maintenance functions can be embedded in the new plate system structure with enhanced anticorrosion performance. High-temperature and corrosion-resistant sensors such as optical fiber sensors or piezoelectric sensors can be selected and embedded in the appropriate position of the plate. Develop a data acquisition and processing system, use advanced signal processing algorithms and machine learning techniques to analyze and diagnose sensor data. At the same time, establish a remote monitoring platform to realize real-time monitoring and remote management of the plate state. The corrosion degree, temperature change, stress state and other key parameters of the plate can be monitored in real time. Through wireless transmission technology, these data are sent to the control center, and when abnormal conditions such as slight corrosion of the plate or stress exceeding the safety threshold are detected, the system can automatically issue an alarm and provide corresponding maintenance recommendations.

[0044] In the overall use process of the new type of plate armor lining system, the safety durability and long-term effect of the application are the greatest advantages. In the construction process of the traditional anticorrosive lining material, not only a large amount of volatile toxic chemicals are produced, but also explosion risks are extremely easy to occur, which brings great hidden dangers to the safety of the site. However, the adhesive used as the dominant material of the new type of anticorrosive plate armor lining system has extremely few volatile components, is more environmentally friendly and safer, and is more beneficial to the health of the construction personnel and the site management personnel. In addition, the adhesive of the plate armor system has a high flash point and a low curing reaction temperature, and such characteristics make the anticorrosive system not easy to cause fire in the construction and post-operation processes. In addition, the plate armor plate itself has a flame-retardant function, greatly reduces the molten droplet phenomenon during combustion, effectively improves the structural safety problem caused by the fire of the absorption tower, and can be long-term and stable in operation during use.

[0045] The above implementation cases are only preferred implementation cases of the present application, and are not any form and substantial limitation of the present application. It should be pointed out that, for ordinary skilled personnel in the technical field, some improvements and supplements can be made without departing from the present application, and these improvements and supplements should also be regarded as the protection scope of the present application.

Claims

1. A composite anti-corrosion plate armor system structure, characterized in that, The application relates to a protective strip (8) and a base body (1) which is provided with a primer layer (2), an adhesive layer (3) and a WEGU deck material layer (4) in sequence on the surface; wherein the WEGU deck material layer (4) is composed of a high-surface-energy plastic layer (5) and a low-surface-energy plastic layer (6); the low-surface-energy plastic layer (6) is arranged on the surface of the adhesive layer (3). The protective strip (8) is arranged at one end of the base body (1) and is attached to the edge of the WEGU deck material layer (4) to prevent the WEGU deck material layer from falling off and swelling when deformation occurs. The high-surface-energy plastic layer (5) refers to a plastic layer with a surface energy of 40-45 mN / m, and the low-surface-energy plastic layer (6) refers to a plastic layer with a surface energy of 30-35 mN / m.

2. A composite sheathing system structure as claimed in claim 1, wherein, The WEGU deck material layer (4) is further provided with a shape memory self-repairing coating.

3. A composite sheathing system structure as defined in claim 1, wherein, The adhesive layer (3) is a polyurethane bitumen rubber body.

4. A composite panel system according to any one of claims 1 to 3, wherein, The material of the high-surface-energy plastic layer (5) is polycarbonate or polyether ketone.

5. A composite panel system according to any one of claims 1 to 3, wherein the composite panel system comprises a plurality of the composite panels. The material of the low-surface-energy plastic layer (6) is polypropylene, high-density polyethylene or chlorinated polyethylene.

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