Internal anti-corrosion structure of cylinder body of micro-pressure generator set

Abstract

The utility model discloses an internal anti-corrosion structure of a cylinder body of a micro-pressure generator set, and relates to the technical field of anti-corrosion of power generation equipment. The cylinder body comprises a cylinder body, a 316L coating and a 316 lining plate are sequentially arranged on the inner surface of the cylinder body, the cylinder body is made of carbon steel, the 316L coating is sprayed on the inner surface of the cylinder body, the thickness of the 316L coating is 1mm-2mm, the 316L lining plate is welded inside the cylinder body, the 316L lining plate is welded on the inner surface of the cylinder body by adopting an argon arc welding process, and the 316L coating and the 316 lining plate are welded on the inner surface of the cylinder body. A 316L coating is arranged on the inner surface of the 316 lining plate, epoxy resin glue is connected between the 316L coating and the 316 lining plate, the epoxy resin glue is blended according to the proportion of (A: B) 9: 1, the gap between the 316 lining plate and the inner surface of the cylinder body is 15 mm, the epoxy resin glue is filled in the gap, and a fluorinated nano coating is sprayed on the outer side surface of the cylinder body. The corrosion resistance of the cylinder body is enhanced, the service life of the cylinder body is prolonged, and stable operation of the micro-pressure generator set is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power generation equipment anticorrosion technology, specifically is micro pressure generator set cylinder body inside anticorrosion structure. BACKGROUND

[0002] When micro pressure generator set is running, its cylinder body inside faces specific pressure, temperature and complex working medium environment, and corrosion problem is prone to appear.

[0003] The prior art prevents the corrosion in the cylinder body by coating a layer of anticorrosion layer in the cylinder body, but once the coating effect is poor and if the coating fails without multiple protection, the cylinder body surface will be directly damaged until rusted through. UTILITY MODEL CONTENT

[0004] In order to solve the problem that the prior art prevents the corrosion in the cylinder body by coating a layer of anticorrosion layer in the cylinder body, but once the coating effect is poor and if the coating fails without multiple protection, the cylinder body surface will be directly damaged until rusted through, the utility model discloses a micro pressure generator set cylinder body inside anticorrosion structure.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a micro pressure generator set cylinder body inside anticorrosion structure, which comprises a cylinder body, the inner surface of the cylinder body is sequentially provided with a 316L coating layer and a 316 lining plate, the material of the cylinder body is carbon steel, the 316L coating layer is sprayed on the inner surface of the cylinder body, the thickness of the 316L coating layer is 1mm-2mm, the 316L lining plate is welded in the cylinder body, the 316L lining plate is welded on the inner surface of the cylinder body by using argon arc welding process, epoxy resin glue is connected between the 316L coating layer and the 316 lining plate, the epoxy resin glue is mixed according to the proportion of (A:B) 9:1, the space between the 316 lining plate and the inner surface of the cylinder body is 15mm, the epoxy resin glue is filled in the gap, and a sodium fluoride nano coating layer is sprayed on the outer surface of the cylinder body.

[0006] Compared with the prior art, the utility model has the advantages of:

[0007] The utility model can effectively solve the corrosion problem in the cylinder body, enhance the corrosion resistance of the cylinder body, prolong the service life, and ensure the stable operation of the micro pressure generator set. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0009] Fig. 1 The present application is a structural schematic diagram.

[0010] Fig. 2 The present application is a structural schematic diagram of 316L lining plate.

[0011] Fig. 3 The present application is a structural schematic diagram of fluorinated nano coating.

[0012] In the figure: 1, cylinder body; 2, 316L coating; 3, 316L lining plate; 4, epoxy resin glue; 5, fluorinated nano coating. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0014] Embodiment: as Figs. 1-3The utility model provides a micro -pressure generator set cylinder interior anticorrosion structure, including cylinder 1, the inner surface of cylinder 1 is sequentially provided with 316L coating 2, 316 lining plate 3, 316L coating 2 is sprayed in the inner surface of cylinder 1, adopts advanced thermal spraying technology or high accuracy plasma spraying method, the material quality that cylinder 1 adopts is carbon steel material quality, can carry out the strict pretreatment to the inner surface of micro -pressure generator set cylinder 1, removes the oil dirt, rust, dust and other impurities on the surface, can use sand blasting, shot blasting and so on pretreatment, make it reach clean, dry and the state of roughness of surface is appropriate, the thickness of 316L coating 2 is 1mm~2mm, the inner surface of cylinder 1 is evenly sprayed with a layer of 316L coating 2 through specific technology, 316L coating 2 can play the preliminary isolation and anticorrosion function, can also enhance the bonding force of cylinder 1 and subsequent 316L lining plate 3, 316L lining plate 3 is welded in cylinder 1 interior, 316L lining plate 3 adopts argon arc welding process and is welded in the inner surface of cylinder 1, guarantees the weld even, firm of welding position, has no air hole, crack and other defects, after welding is completed, carefully checks the welding quality, and carries out the necessary cleaning and finishing to the welding position, makes its surface smooth, the 316L lining plate 3 that is accurately processed is closely attached on the 316L coating 2 of cylinder inner surface, guarantees the sealing property and integrality between the inner bag and cylinder, the 316L coating is connected with 316 lining plate between epoxy resin glue 4, the interval between 316 lining plate 3 and the inner surface of cylinder 1 is 15 millimeters, the epoxy resin glue 4 is filled in the gap, the epoxy resin glue 4 is mixed according to the proportion of (A:B) 9:1, the mixed epoxy resin glue 4 is slowly and evenly injected into the 15 millimeter gap between 316L lining plate 3 and the inner surface of cylinder 1 through funnel glue injection device, in the glue injection process, the glue injection speed and pressure are reasonably set, and the flow condition of glue solution is observed simultaneously, ensure that the glue solution can fill every tiny corner in the gap smoothly, avoid the appearance bubble or unfilled gap, if necessary, exhaust hole can be set at appropriate position to promote the full filling of glue solution, after filling is completed, the glue joint is carefully finished, makes its surface level, beautiful, and strictly according to the curing process requirement of epoxy resin glue carries out curing treatment, the epoxy resin glue 4 has excellent corrosion resistance, good sealing property and higher adhesive strength, can effectively fill the gap, prevent outside medium from entering, further strengthen the stability and durability of entire anticorrosion structure, thereby provide reliable anticorrosion protection for micro -pressure generator set cylinder, the outside surface of cylinder 1 is sprayed with sodium fluoride nanometer coating 5, sodium fluoride nanometer coating 5 has ultralow viscosity, ultrahigh flow flatness, can form a waterproof, moisture-proof, insulating layer of micro -nanometer level thickness on the outside of cylinder 1.

[0015] Working principle: first, the micro pressure generator set cylinder 1 of inner surface is strictly pretreated, removes the surface oil dirt, rust, dust and other impurities, can use sand blasting, shot blasting and so on pretreatment, makes it reach clean, dry and the surface roughness suitable state, provides good foundation for 316L coating 2 spraying, uses professional spraying equipment and process, for example, advanced thermal spraying technology or high precision plasma spraying method, 316L coating 2 is uniformly covered in the inner surface of cylinder, forms a uniform thickness, dense and strong adhesion coating, the coating thickness can be set in [1mm ~ 2mm] according to actual working condition and design requirement, ensure that the quality and performance of 316L coating 2 meet high standard;

[0016] After 316L coating 2 is completely solidified, 316L lining plate 3 that is accurately processed according to the inner diameter and shape of the cylinder is carefully installed into the cylinder, so that it is tightly attached to 316L coating 2, and the attachment degree is ensured to be optimal. The 316L lining plate 3 is welded to the inner surface of the cylinder 1 by using a welding process of argon arc welding, so that the weld of the welded part is uniform and firm, and free from defects such as pores and cracks. After welding is completed, the welding quality is carefully checked, and the welded part is cleaned and trimmed as necessary, so that the surface is smooth and flat.

[0017] Subsequently, epoxy resin glue 4 dedicated to caulking is prepared and strictly mixed according to the ratio of (A:B) 9:1. Professional stirring tools are used to ensure that the glue solution is uniformly stirred without lumping or precipitation. The mixed epoxy resin glue 4 is slowly and uniformly injected into the 15mm gap between the 316L lining plate 3 and the inner surface of the cylinder 1 through a funnel glue injection device. During the glue injection process, the injection speed and pressure are reasonably set, and the flow of the glue is observed at the same time to ensure that the glue can smoothly fill every tiny corner of the gap, avoiding the presence of bubbles or unfilled gaps. If necessary, exhaust holes can be provided at appropriate positions to facilitate the full filling of the glue. After filling is completed, the glue joint is carefully trimmed to make the surface flat and beautiful, and the curing process of the epoxy resin glue is strictly followed, for example, the cylinder 1 is placed in an environment with a temperature controlled at [20-25℃] for 24-36H to achieve complete curing, so as to ensure that the epoxy resin glue reaches the best curing effect and performance state, thereby forming a complete and efficient anti-corrosion structure to provide excellent anti-corrosion protection for the micro pressure generator set cylinder 1.

[0018] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. An internal anti-corrosion structure for the cylinder body of a micro-voltage generator set, comprising a cylinder body (1), characterized in that: The inner surface of the cylinder (1) is sequentially provided with a 316L coating (2) and a 316 liner (3). The 316L coating (2) is sprayed on the inner surface of the cylinder (1), and the 316L liner (3) is welded to the inside of the cylinder (1). An epoxy resin adhesive (4) connects the 316L coating and the 316 liner.

2. The internal corrosion-resistant structure of the cylinder body of the micro-pressure generator set as described in claim 1, characterized in that, The thickness of the (316)L coating (2) is 1mm to 2mm.

3. The internal corrosion protection structure of the cylinder body of the micro-pressure generator set as described in claim 1, characterized in that, The 316 liner (3) is spaced 15 mm apart from the inner surface of the cylinder (1), and the epoxy resin adhesive (4) fills the gap.

4. The internal corrosion protection structure of the cylinder body of the micro-pressure generator set as described in claim 1, characterized in that, The epoxy resin adhesive (4) is mixed in a ratio of (A:B) 9:

1.

5. The internal corrosion protection structure of the cylinder body of the micro-pressure generator set as described in claim 1, characterized in that, The 316L liner (3) is welded to the inner surface of the cylinder (1) using argon arc welding.

6. The internal corrosion protection structure of the cylinder body of the micro-pressure generator set as described in claim 1, characterized in that, The cylinder body (1) is made of carbon steel.

7. The internal anti-corrosion structure of the cylinder body of the micro-pressure generator set as described in claim 1, characterized in that, The outer surface of the cylinder (1) is coated with a fluorinated nano-coating (5).

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