Method for cleaning and regenerating stainless steel silane pipeline for new energy

Abstract

The invention discloses a method for cleaning and regenerating a stainless steel silane pipeline for new energy, and relates to the technical field of precise cleaning and regeneration, the method comprises the following steps: S1, physical vibration film removal: clamping a long iron rod by a pistol drill for dredging; s2, endoscope detection: detecting the removal condition of a film layer in the pipeline; s3, alkali washing: putting the product treated in the S2 into an alkali tank to remove a film; s4, pure water soaking: putting the product into a pure water tank for air-blowing soaking; s5, acid neutralization: neutralizing to remove alkali liquor and metal ions; s6, pure water soaking: putting the product treated in the step S5 into a pure water tank for air-blowing soaking; s7, pre-drying: pre-drying the product; s8, endoscopic inspection: inspecting whether the film on the inner side of the pipeline product is completely removed or not; and S9, sand blasting, wherein a film layer on the outer surface of the pipeline is removed through sand blasting. According to the method, the membrane is removed through physical vibration in the step S1, so that when the method is used for surface cleaning, the efficiency is higher when the method is used for cleaning impurities in the pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of precision cleaning and regeneration, and specifically to a method for cleaning and regenerating stainless steel silane pipelines for new energy. Background Art

[0002] After nearly decades of development in China, science and technology have advanced by leaps and bounds. While developing, the country has paid more and more attention to the environment, and also to new energy projects. There are more and more new energy enterprises, especially solar cells. During the production process of solar cells, some substances will deposit on the surface and inside of the equipment. When the deposition reaches a certain level, the equipment will not be able to operate normally. At this time, it is necessary to replace it for cleaning or replace the equipment, and the cost of replacing the equipment is very high. The cleaning of flat equipment is relatively simple, but the crystallization inside the slender silane pipeline is serious and it is very difficult to clean completely, especially some blocked pipelines. And the existing methods for pipeline repair and regeneration also have some deficiencies, such as:

[0003] A pipeline repair method and a repaired pipeline with the application number: CN201810321366.7. This method is to first place an annular seal in the reserved area of the pipeline, and then install a rigid annular adjustment unit on the inner surface of the annular seal, adjust the rigid annular adjustment unit, expand its outer contour, and make the rigid annular adjustment unit press the annular seal, so as to achieve the tight fit between the annular seal and the pipeline surface in the reserved area. However, in the actual use process, since this method expands its outer contour through the rigid annular adjustment unit, it may cause the internal crystallization of the pipeline to fit with the rigid annular adjustment unit, resulting in the problem of difficult disassembly, and then the main body inside the pipeline can be cleaned;

[0004] Therefore, we propose a method for cleaning and regenerating stainless steel silane pipelines for new energy in order to solve the problems raised above. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for cleaning and regenerating stainless steel silane pipelines for new energy, so as to solve the problem that in the currently most methods for cleaning and regenerating stainless steel silane pipelines in the market, the outer contour is expanded through a rigid annular adjustment unit, which may cause the internal crystallization of the pipeline to fit with the rigid annular adjustment unit, resulting in the problem of difficult disassembly, and then the main body inside the pipeline can be cleaned.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A method for cleaning and regenerating stainless steel silane pipelines for new energy, the method for cleaning and regenerating stainless steel silane pipelines for new energy includes the following steps:

[0007] S1: Physical vibration for film removal: Use a pistol drill to clamp a long iron rod and insert it into the pipeline for dredging;

[0008] S2: Endoscope inspection: Inspect the removal of the inner film layer of the pipeline;

[0009] S3: Alkaline washing: Put the product after S2 treatment into an alkaline tank to remove the film;

[0010] S4: Pure water immersion: Put the product after S3 treatment into a pure water tank and bubble-immerse it;

[0011] S5: Acid neutralization: Neutralize to remove the alkaline solution and metal ions;

[0012] S6: Pure water immersion: Put the product after S5 treatment into a pure water tank and bubble-immerse it;

[0013] S7: Pre-drying: Pre-dry the product;

[0014] S8: Endoscope inspection: Check whether the inner side of the product has been completely defilmed;

[0015] S9: Sandblasting: Remove the outer surface film layer by sandblasting;

[0016] S10: Ultrasonic cleaning: Conduct ultrasonic cleaning on the product in a dust-free room;

[0017] S11: Drying: Dry the product in a dust-free room;

[0018] S12: Packaging: Package the product in a dust-free vacuum;

[0019] Through step S1: Physical vibration to remove the film, the method can be made more convenient during surface cleaning, thus making the method more efficient in cleaning the impurities inside the pipeline. And through two pure water immersions, the impurities on the pipeline surface can fall off, making the method more convenient in cleaning the impurities on the pipeline surface;

[0020] Through step S2: Endoscope inspection and step S8: Endoscope inspection, the method can better detect the residues or contaminants on the surface of the pipeline product, and can better monitor the defective parts of the pipeline product, making the method more convenient during cleaning or regeneration work;

[0021] Through step S4: Pure water immersion, S6 pure water immersion and S10 ultrasonic cleaning, the method can conduct cleaning operations on the pipeline product before, during and after cleaning respectively, thus preventing the problem that the film impurities inside or on the outer layer of the pipeline product are difficult to be completely cleaned.

[0022] As a preferred technical solution of the present invention, in step S1: physical vibration for film removal, a special long iron rod is clamped by a pistol drill and inserted into the pipeline for dredging; the pistol drill is a commercially available impact electric drill, and the long iron rod has a length of 2-5 meters and a diameter of 3-7 mm. A commercially available brushless 13-mm rechargeable impact electric drill can be used, and the long iron rod has a length of 3.3 meters and a diameter of 5 mm, and one end is a stainless steel rod body with a pointed tip.

[0023] Adopting the above technical solution can enable, when performing physical vibration for film removal, the impact electric drill to drive the long iron rod to better remove the impurities on the surface of the pipeline product, thereby increasing the efficiency of the method in removing impurities.

[0024] As a preferred technical solution of the present invention, in step S2: endoscope inspection and step S8: endoscope examination, it is detected that most of the internal film layers are removed as qualified, otherwise, return to step S1: physical vibration for film removal to continue film removal.

[0025] Adopting the above technical solution can enable the user to observe the impurities on the surface or inside of the pipeline product through the endoscope, and can observe the impurities inside the pipeline product through the endoscope, so as to better clean, making the method more convenient when cleaning the inside of the pipeline product.

[0026] As a preferred technical solution of the present invention, in step S3: alkali washing, the material used is commercially available industrial-grade KOH, the mass ratio of the liquid medicine concentration is KOH:H2O = 1:5 - 1:10, the temperature is 30 - 70 °C, and the time is 1 - 8H. Among them, the melting point of KOH (potassium hydroxide) is 361 °C - 380 °C, the boiling point is 1320 °C, and the water solubility is easily soluble.

[0027] Adopting the above technical solution can enable the pipeline product to be adjusted by itself according to the composition of the pipeline product for data such as the content or temperature of KOH (potassium hydroxide) when performing alkali washing with KOH (potassium hydroxide), so that the user can better control.

[0028] As a preferred technical solution of the present invention, in step S4: pure water immersion, S6: pure water immersion, and S10: ultrasonic cleaning, the water involved is ultrapure water with a resistivity > 15 mΩ·CM, and then air stirring is carried out, and the stirring method is air stirring.

[0029] Adopting the above technical solution can enable the pipeline product to be better cleaned when being immersed, thereby avoiding the erosion of the pipeline product itself by the impurities in the water source, and increasing the cleaning efficiency of the method.

[0030] As a preferred technical solution of the present invention, in step S5: acid neutralization, the material used is a commercially available hydrochloric acid solution, the mass ratio of the liquid medicine concentration is KOH:H2O = 1:5 - 1:10, the temperature is 20 - 50°C, and the time is 5 - 50 min. Among them, the melting point of KOH (potassium hydroxide) is 361°C - 380°C, and the boiling point is 1320°C.

[0031] Adopting the above technical solution can ensure that when the hydrochloric acid solution is used to clean the outside or inside of the pipeline product, the hydrochloric acid solution will not damage the body of the pipeline product, and can better clean the internal film of pipeline products of different specifications, thereby increasing the protection performance of this method during use.

[0032] As a preferred technical solution of the present invention, in step S7: pre-drying and S11: drying, the power supply parameters of the high-temperature oven are AC380V / 40HZ, the temperature control is 80 - 600°C, the rated power is 22KW, the working size is 3M * 1.2M * 1.2M, the drying temperature is 80 - 300°C, and the time is 10 - 300 min.

[0033] Adopting the above technical solution can enable the pipeline product to be adjusted according to different specifications and models during drying, thereby increasing the adjustability of this method during use.

[0034] As a preferred technical solution of the present invention, in step S9: sandblasting, the sandblasting machine is a commercially available direct-pressure sandblasting machine, the diameter of the sandblasting gun nozzle is 1 - 3 cm, the sandblasting pressure is 3 - 8 Kg / cm2, the required abrasive is white fused alumina of 80 - 220 mesh, and the particle density of the white fused alumina is: 3.95 - 4.0 g / cm3, which has the characteristics of acid and alkali corrosion resistance and high temperature resistance.

[0035] Adopting the above technical solution can make the method more convenient when sandblasting the surface of the pipeline product, thereby increasing the processing efficiency of this method for pipeline products.

[0036] As a preferred technical solution of the present invention, in step S10: ultrasonic cleaning, the output voltage of the ultrasonic cleaning machine is 220 or 380V, the output current is 2 - 5A, the frequency is 20 - 200HZ, and the inside of the cleaning tank is newly added ultrapure water.

[0037] As a preferred technical solution of the present invention, in step S12: packaging, the material of the used packaging bag is PE (polyethylene plastic) or PP (polypropylene plastic), and the packaging method is single-layer vacuum packaging.

[0038] Adopting the above technical solution can package the product with two plastic materials of PE (polyethylene plastic) or PP (polypropylene plastic), which can effectively prevent particles from entering the pipeline product that has been cleaned or regenerated, thereby increasing the protection performance of this method.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows: Through step S1: physical vibration film removal, the method can be more convenient when performing surface cleaning, so that the method is more efficient when cleaning impurities inside the pipeline, and through two pure water immersions, impurities on the pipeline surface can fall off, so that the method can be more convenient when cleaning impurities on the pipeline surface;

[0040] Through step S2: endoscope detection and step S8: endoscope inspection, the method can better detect residues or contaminants on the surface of the pipeline product and can better monitor defective parts of the pipeline product, making the method more convenient when performing cleaning or regeneration work;

[0041] Through step S4: pure water immersion, S6 pure water immersion and S10 ultrasonic cleaning, the method can perform cleaning operations on the pipeline product before, during and after cleaning respectively, so as to prevent the problem that it is difficult to completely clean the film impurities inside or outside the pipeline product;

[0042] Furthermore, by adjusting the data of the hydrochloric acid solution, the hydrochloric acid solution will not damage the main body of the pipeline product when cleaning the outside or inside of the pipeline product, thus increasing the protection of the method during use;

[0043] Even further, by packaging the product with two plastic materials of PE (polyethylene plastic) or PP (polypropylene plastic), it can effectively prevent external particles from entering the pipeline product that has been cleaned or regenerated, thus increasing the protection of the method. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic flow structure diagram of the present invention;

[0045] Figure 2 It is a schematic process structure diagram of the present invention;

[0046] Figure 3 It is a schematic detailed process structure diagram of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0048] Embodiment 1:

[0049] Please refer to Figures 1-3, the present invention provides a technical solution: a method for cleaning and regenerating a stainless steel silane pipeline for new energy. The method for cleaning and regenerating a stainless steel silane pipeline for new energy includes the following steps:

[0050] S1: Physical vibration for film removal: Use a pistol drill to clamp a long iron rod and insert it into the pipeline for dredging;

[0051] S2: Endoscope inspection: Detect the removal of the film layer inside the pipeline;

[0052] S3: Alkaline washing: Put the product after S2 treatment into an alkaline tank for film removal;

[0053] S4: Pure water immersion: Put the product after S3 treatment into a pure water tank and bubble-immerse it;

[0054] S5: Acid neutralization: Neutralize and remove the alkaline solution and metal ions;

[0055] S6: Pure water immersion: Put the product after S5 treatment into a pure water tank and bubble-immerse it;

[0056] S7: Pre-drying: Pre-dry the product;

[0057] S8: Endoscope inspection: Check whether the film is completely removed inside the product;

[0058] S9: Sandblasting: Remove the outer surface film layer by sandblasting;

[0059] S10: Ultrasonic cleaning: Conduct ultrasonic cleaning on the product in a dust-free room;

[0060] S11: Drying: Dry the product in a dust-free room;

[0061] S12: Packaging: Conduct dust-free vacuum packaging on the product;

[0062] In step S1: Physical vibration for film removal, use a pistol drill to clamp a special long iron rod and insert it into the pipeline for dredging; the pistol drill is a commercially available impact electric drill, and the long iron rod is 2-5 meters in length and 3-7 mm in diameter. A commercially available brushless 13 mm rechargeable impact electric drill can be used, and the long iron rod is 3.3 meters in length and 5 mm in diameter, with one end being a pointed stainless steel rod body;

[0063] In step S2: Endoscope inspection and step S8: Endoscope inspection, if it is detected that most of the internal film layer has been removed, it is qualified; otherwise, return to step S1: Physical vibration for film removal to continue film removal;

[0064] Step S3: In the caustic washing process, the material used is commercially available industrial-grade KOH. The mass ratio of the liquid medicine concentration is KOH:H2O = 1:5 - 1:10, the temperature is 30 - 70°C, and the time is 1 - 8 hours. The melting point of KOH (potassium hydroxide) is 361°C - 380°C, the boiling point is 1320°C, and its water solubility is easily soluble;

[0065] In Step S4: pure water immersion, S6: pure water immersion, and S10: ultrasonic cleaning, the water involved is ultra-pure water with a resistivity > 15 mΩ·CM. Subsequently, air stirring is carried out;

[0066] Step S5: In the acid neutralization process, the material used is commercially available hydrochloric acid solution. The mass ratio of the liquid medicine concentration is KOH:H2O = 1:5 - 1:10, the temperature is 20 - 50°C, and the time is 5 - 50 minutes. The melting point of KOH (potassium hydroxide) is 361°C - 380°C, and the boiling point is 1320°C;

[0067] Step S7: In pre-drying and S11: drying, the power supply parameters of the high-temperature oven are AC380V / 40HZ, the temperature control is 80 - 600°C, the rated power is 22KW, the working size is 3M * 1.2M * 1.2M, the drying temperature is 80 - 300°C, and the time is 10 - 300 minutes;

[0068] Step S9: In sandblasting, the sandblasting machine is a commercially available direct-pressure sandblasting machine. The diameter of the sandblasting gun nozzle is 1 - 3 cm, the sandblasting pressure is 3 - 8 Kg / cm2, the required abrasive material is white corundum with 80 - 220 mesh, and the particle density of white corundum is: 3.95 - 4.0 g / cm3, which has the characteristics of acid and alkali corrosion resistance and high temperature resistance;

[0069] Step S10: In ultrasonic cleaning, the output voltage of the ultrasonic cleaning machine is 220 or 380V, the output current is 2 - 5A, the frequency is 20 - 200HZ, and the cleaning tank is filled with newly added ultra-pure water;

[0070] Step S12: In packaging, the material of the packaging bag used is PE (polyethylene plastic) or PP (polypropylene plastic), and the packaging method is single-layer vacuum packaging;

[0071] The present invention adopts a method combining physical vibration film removal, alkali washing, acid neutralization, and sandblasting to solve the above problems; the process flow is simple, and there is basically no residual silane crystal inside the cleaned product, greatly reducing the production cost of customers; and through two steps of endoscope detection and endoscope inspection, impurities inside the pipeline product can be effectively monitored, so that the method can be more convenient when cleaning impurities inside the pipeline product; and after the film impurities inside and on the surface of the pipeline product are cleaned, by packaging the pipeline product inside a clean room, it can reduce the contact with impurities during subsequent storage of the pipeline product, thereby increasing the protection of the pipeline product during storage.

[0072] Example 2:

[0073] The difference between this embodiment and Embodiment 1 lies in: a method for cleaning and regenerating a stainless steel silane pipeline for new energy, the method comprising the following steps:

[0074] S1: Physical vibration film removal: In this embodiment, a pistol drill is used to clamp a special long iron rod and insert it into the pipeline for dredging; the pistol drill is a commercially available impact electric drill, and the long iron rod has a length of 2 - 5 meters and a diameter of 3 - 7 mm; preferably, it is a commercially available brushless 13 - millimeter rechargeable impact electric drill, the long iron rod has a length of 3.3 meters and a diameter of 5 mm, and one end is a stainless steel rod body with a tip, for impacting the pipeline product.

[0075] S2: Endoscope detection: Detect the removal situation of the film layer inside the pipeline; in this embodiment, the endoscope is a commercially available endoscope, and preferably, the endoscope is a commercially available 5.5 - mm 5 - meter hard - wire front - view mirror. It is considered qualified if only a small amount of film layer is detected inside; otherwise, return to S1 for film removal.

[0076] S3: Alkali washing: The materials used in this embodiment are commercially available industrial - grade KOH, the mass ratio of the liquid medicine concentration is KOH:H2O = 1:5 - 1:10, the temperature is 30 - 70°C, and the time is 1 - 8H; preferably, it is commercially available high - grade 99% KOH, the mass ratio of the liquid medicine concentration is KOH:H2O = 1:9, the temperature is 55°C, and the time is 3H. Among them, the melting point of KOH (potassium hydroxide) is 361°C - 380°C, the boiling point is 1320°C, and the water solubility is easily soluble.

[0077] S4: Pure water immersion: The product treated in S3 is put into a pure water tank and soaked with aeration; in this embodiment, preferably, it is ultrapure water with a resistivity > 18 mΩ.CM, and the stirring method is air stirring.

[0078] S5: Acid neutralization: In step S5 described in this embodiment, preferably, the material used for acid neutralization is commercially available high-grade hydrochloric acid solution with a concentration of 37%. The mass ratio of the liquid medicine concentration is HCL:H2O = 1:9, the temperature is 25°C, and the time is 15 min. Among them, the melting point of HCL (hydrogen chloride) is -114°C, the boiling point is 108°C, and it is easily soluble in water.

[0079] S6: Soaking in pure water: Put the product after S3 treatment into a pure water tank and soak it with aeration. In this embodiment, the water is ultrapure water with a resistivity > 15 MΩ·CM, and aeration stirring is carried out. Preferably, it is ultrapure water with a resistivity > 18 MΩ·CM, and the stirring method is air stirring, and the temperature is at room temperature.

[0080] S7: Pre-drying: In this embodiment, the power supply parameters of the high-temperature oven are AC380V / 40HZ, the temperature control is 80 - 600°C, the rated power is 22KW, and the working size is 3M * 1.2M * 1.2M. It is set that the pre-drying temperature is 90°C and the time is 30 min.

[0081] S8: Endoscope inspection: Check whether the inner side of the product is completely defilmed. In this embodiment, the endoscope is a commercially available endoscope. Preferably, the endoscope is a commercially available 5.5mm 5-meter hard-wired front mirror. If it is detected that there is no residual film layer inside, it is qualified; otherwise, return to S5 for defilming.

[0082] S9: Sandblasting: In this embodiment, a sandblasting machine is used to strip the outer surface film layer. The diameter of the sandblasting gun nozzle is 2 cm, the sandblasting pressure is 6 Kg / cm2, and the required abrasive material is 220-mesh glass beads. Preferably, the sandblasting machine is a direct-pressure manual sandblasting machine. High pressure can make the surface film layer be stripped more completely.

[0083] S10: Ultrasonic cleaning: The product is ultrasonically cleaned in a clean room. In this embodiment, the output voltage of the ultrasonic cleaning machine is 380V, the output current is 4A, the frequency is 40Hz, the ultrasonic time is 15 min, and the cleaning tank is filled with newly added ultrapure water with a resistivity > 18 MΩ·CM. Preferably, the clean room is a 100-class clean room used in the semiconductor industry.

[0084] S11: Drying in a clean room: In this embodiment, drying is carried out in a high-temperature oven. The power supply parameters of the high-temperature oven are AC380V / 40HZ, the temperature control is 150°C, the time is 2H, the rated power is 36KW, and the working size is 3M * 1.2M * 1.2M. Preferably, the clean room is a 100-class clean room used in the semiconductor industry.

[0085] S12: Vacuum packaging: In this embodiment, the product is vacuum-packed and labeled. And the material of the packaging bag used for the outer layer of the pipeline product is PE (polyethylene plastic), and the packaging method is single-layer vacuum packaging.

[0086] In this embodiment, when processing relatively hard stainless steel silane pipeline products, the hydrochloric acid solution and ultrapure water levels can be increased, so that the film impurities inside or on the outer layer of the pipeline products can be removed without scratching the surface of the pipeline products, enabling better cleaning effect when processing stainless steel silane pipeline products with higher hardness in this embodiment.

[0087] Thus, a series of operations are completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0088] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A method for cleaning and regenerating a stainless steel silane pipeline for new energy, characterized in that The method for cleaning and regenerating the stainless steel silane pipeline for new energy sources includes the following steps: S1: Physical vibration for film removal: Use a pistol drill to clamp a long iron rod and insert it into the pipeline for dredging. S2: Endoscope inspection: Detect the removal situation of the film layer inside the pipeline. S3: Alkaline washing: Put the product after S2 treatment into an alkaline tank for film removal. S4: Pure water immersion: Put the product after S3 treatment into a pure water tank and bubble it for immersion. S5: Acid neutralization: Neutralize and remove the alkaline solution and metal ions. S6: Pure water immersion: Put the product after S5 treatment into a pure water tank and bubble it for immersion. S7: Pre-drying: Pre-dry the product. S8: Endoscope inspection: Check whether the film removal on the inner side of the product is complete. S9: Sandblasting: Remove the film layer on the outer surface by sandblasting. S10: Ultrasonic cleaning: Conduct ultrasonic cleaning on the product in a clean room. S11: Drying: Dry the product in a clean room. S12: Packaging: Conduct dust-free vacuum packaging on the product.

2. A method for cleaning and regenerating a stainless steel silane pipeline for new energy, characterized in that: step In S1: Physical vibration for film removal, use a pistol drill to clamp a special long iron rod and insert it into the pipeline for dredging; the pistol drill is a commercially available impact electric drill, and the long iron rod is 2 - 5 meters in length and 3 - 7 mm in diameter.

3. A method for cleaning and regenerating a stainless steel silane pipeline for new energy according to claim 1, characterized in that, In step S2: Endoscope inspection and step S8: Endoscope inspection, it is considered qualified if most of the film layer inside is removed.

4. A method for cleaning and regenerating a stainless steel silane pipeline for new energy according to claim 1, characterized in that, In step S3: Alkaline washing, the material used is commercially available industrial-grade KOH, the mass ratio of the liquid medicine concentration is KOH:H2O = 1:5 - 1:10, the temperature is 30 - 70 °C, and the time is 1 - 8H.

5. A method for cleaning and regenerating a stainless steel silane pipeline for new energy, according to claim 1, characterized in that, In step S4: Pure water immersion, S6: Pure water immersion, and S10: Ultrasonic cleaning, when water is involved, it is ultra-pure water with a resistivity > 15 mΩ.CM, and then air stirring is carried out for bubbling and stirring.

6. A method for cleaning and regenerating a stainless steel silane pipeline for new energy use according to claim 1, characterized in that, In step S5: The material used for acid neutralization is commercially available hydrochloric acid solution, the mass ratio of the liquid medicine concentration is KOH:H2O = 1:5 - 1:10, the temperature is 20 - 50 °C, and the time is 5 - 50 min.

7. A method for cleaning and regenerating a stainless steel silane pipeline for new energy according to claim 1, characterized in that, In step S7: Pre-drying and S11 drying, the power supply parameters of the high-temperature oven are AC380V / 40HZ, the temperature control is 80 - 600 °C, the rated power is 22KW, the working size is 3M * 1.2M * 1.2M, the drying temperature is 80 - 300 °C, and the time is 10 - 300 min.

8. A method for cleaning and regenerating a stainless steel silane pipeline for new energy, according to claim 1, characterized in that, In step S9: Sandblasting, the sandblasting machine is a commercially available direct-pressure sandblasting machine, the diameter of the sandblasting gun nozzle is 1 - 3 cm, the sandblasting pressure is 3 - 8 Kg / cm2, and the required abrasive material is white fused alumina of 80 - 220 mesh.

9. A method for cleaning and regenerating a stainless steel silane pipeline for new energy, according to claim 1, characterized in that, In step S10: Ultrasonic cleaning, the output voltage of the ultrasonic cleaning machine is 220 or 380V, the output current is 2 - 5A, the frequency is 20 - 200HZ, and the inside of the cleaning tank is newly added ultra-pure water.

10. A method for cleaning and regenerating a stainless steel silane pipeline for new energy according to claim 1, characterized in that, In step S12: Packaging, the material of the used packaging bag is PE (polyethylene plastic) or PP (polypropylene plastic), and the packaging method is single-layer vacuum packaging.

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