CN116748811A - Method for replacing wear-resisting plate of self-elevating wind power installation platform - Google Patents
Method for replacing wear-resisting plate of self-elevating wind power installation platform Download PDFInfo
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- CN116748811A CN116748811A CN202310750821.6A CN202310750821A CN116748811A CN 116748811 A CN116748811 A CN 116748811A CN 202310750821 A CN202310750821 A CN 202310750821A CN 116748811 A CN116748811 A CN 116748811A
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- 238000009434 installation Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 238000005299 abrasion Methods 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 238000005498 polishing Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 239000001569 carbon dioxide Substances 0.000 claims description 7
- 239000010953 base metal Substances 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 6
- 239000006247 magnetic powder Substances 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 230000037452 priming Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention relates to the field of wind power platform construction, and provides a method for replacing a wear-resisting plate of a self-elevating wind power installation platform, which comprises the following steps: mounting a first I-steel, a second I-steel and a third I-steel; determining a first circle center, a second circle center and a third circle center, and judging whether the first circle center, the second circle center and the third circle center are on the same straight line or not; if the abrasion plates are on the same straight line, the abrasion plates are determined to be the center line, and the upper abrasion plates and the lower abrasion plates are removed; determining a deviation value of the groove of the wear-resistant plate based on the central line, and processing a new wear-resistant plate; and installing and welding the new wear-resistant plate. According to the self-elevating wind power installation platform wear-resisting plate replacement method provided by the invention, the deviation value of each wear-resisting plate groove is determined through the central line, and then the corresponding new wear-resisting plate is processed according to the deviation value, so that the distance between each new wear-resisting plate and the central line after installation is the same, the installation accuracy of the new wear-resisting plate is improved, and the performance and the service life of the pile leg are ensured.
Description
Technical Field
The invention relates to the field of wind power platform construction, in particular to a method for replacing a wear-resisting plate of a self-elevating wind power installation platform.
Background
Global wind farm construction has seen a trend from land to offshore, due to the diminishing wind resources that are economically exploitable on land. The self-elevating offshore wind power installation platform is lifted to a certain height mainly through the cooperation of the pile legs and the lifting system, so that the self-elevating offshore wind power installation platform is suitable for different water depths and operation heights.
The pile leg and the main body structure of the self-elevating offshore wind power installation platform widely use wear plates, and the wear plates play roles of guiding, transmitting acting force and resisting abrasion. The prior art generally fixes the wear-resisting plate on the main body structure through a welding method, and the wear-resisting plate arrangement mode leads to the easy damage of the main body structure of wear-resisting plate disassembly and replacement, and is difficult to control the new wear-resisting plate on the same vertical line when the new wear-resisting plate is installed. When the wear-resisting plate is not accurately installed, two adjacent pile legs cannot be aligned, and the wear-resisting plate cannot uniformly transmit stress to the pile legs, so that the service life of the pile legs is shortened, and the stress capability of the pile legs is reduced. When the deviation of the installed wear plates is too large, even the situation of platform collapse occurs, resulting in significant economic loss.
Disclosure of Invention
The invention provides a method and a system for replacing a wear-resistant plate of a self-elevating wind power installation platform, and aims to provide an accurate method for replacing the wear-resistant plate.
In a first aspect, the invention provides a method for replacing a wear-resistant plate of a self-elevating wind power installation platform, which comprises the following steps:
the pile leg bolt hole of the upper wear-resisting plate is provided with a first I-steel, and the upper part and the lower part of the lower wear-resisting plate are respectively provided with a second I-steel and a third I-steel; the upper wear-resistant plate and the lower wear-resistant plate are wear-resistant plates to be replaced, and the wear-resistant plates are arranged on the pile legs;
determining a first circle center of a circle where the first I-steel is located, determining a second circle center of a circle where the second I-steel is located, and determining a third circle center of a circle where the third I-steel is located;
judging whether the first circle center, the second circle center and the third circle center are on the same straight line or not based on a total station;
if the abrasion plates are on the same straight line, the abrasion plates are determined to be the center line, and the upper abrasion plates and the lower abrasion plates are removed;
determining a deviation value of the groove of the wear-resistant plate based on the central line, and processing a new wear-resistant plate based on the deviation value; the wear-resisting plate groove is a groove reserved on the pile leg after the wear-resisting plate is removed;
and installing and welding the new wear-resistant plate.
In one embodiment, said removing said upper wear plate and said lower wear plate comprises:
removing old weld joints by adopting a carbon planer, and leaving the root for 5 mm;
polishing to remove the root-remaining weld;
and performing magnetic powder detection and flaw detection on the base metal at the old weld joint position, and polishing or repair welding the base metal if the defect is found.
The installation of the new wear plate comprises:
and mounting the new wear-resisting plate on the pile leg in a mode of adding the code plate, so that the clearance between the pile leg and the new wear-resisting plate is not less than 8 mm.
The welding of the new wear plate comprises:
carbon dioxide welding is adopted to weld hanging rings on the new wear-resistant plate;
polishing to remove sundries in the groove root and groove 30 mm range of the new wear-resisting plate;
carbon dioxide welding is adopted to weld a hanging ring on the inner side surface of the radian of the new wear-resisting plate;
polishing to remove paint, rust and greasy dirt at the weld joint position;
and installing the new wear-resisting plate and positioning and welding.
The dry elongation of the welding wire is in the range of 15 to 20 mm during the priming pass.
Before the new wear-resistant plate is installed and the positioning welding is performed, the method further comprises the following steps:
preheating the to-be-welded part and the two sides of the to-be-welded part within 50 mm, wherein the preheating temperature is 120 ℃.
After said installing said new wear plate, tack welding, further comprising:
and covering heat preservation cotton at the welding position to cool the welding seam slowly.
And after the groove is filled, a 10-millimeter welding leg is welded and is in smooth transition with the base metal.
After said installing said new wear plate, tack welding, further comprising:
at 48 hours after welding, appearance inspection and magnetic powder inspection were performed.
According to the method for replacing the self-elevating wind power installation platform wear-resisting plate, the first I-steel is installed at the position of the pile leg bolt hole at the upper wear-resisting plate, and the second I-steel and the third I-steel are respectively installed above and below the lower wear-resisting plate; determining a first circle center of a circle where the first I-steel is located, determining a second circle center of a circle where the second I-steel is located, and determining a third circle center of a circle where the third I-steel is located; judging whether the first circle center, the second circle center and the third circle center are on the same straight line or not based on the total station; if the abrasion plates are on the same straight line, the abrasion plates are determined to be the center line, and the upper abrasion plates and the lower abrasion plates are removed; determining a deviation value of the groove of the wear-resistant plate based on the central line, and processing a new wear-resistant plate based on the deviation value; and installing and welding the new wear-resistant plate.
The self-elevating wind power installation platform wear-resisting plate refreshing method has the following advantages: the center line of the pile leg is determined through the first center, the second center and the third center, so that the deviation value of each wear-resisting plate groove is determined, and then corresponding new wear-resisting plates are processed according to the deviation values, so that the distance between each new wear-resisting plate and the center line after being installed is the same, the installation inaccuracy of the new wear-resisting plates due to the damage or deformation of the pile leg is avoided, the installation accuracy of the new wear-resisting plates is improved, and the performance and the service life of the pile leg are guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the following description will be given with a brief introduction to the drawings used in the embodiments or the description of the prior art, it being obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained from these drawings without the inventive effort of a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for replacing a wear plate of a self-elevating wind power installation platform provided by the invention;
fig. 2 is a schematic distribution diagram of a pile leg wear plate provided by the invention;
fig. 3 is a schematic diagram of circle center determination provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiments of the present invention provide embodiments of a self-elevating wind power installation platform wear plate replacement method, it being noted that although a logical sequence is shown in the flow chart, under certain data, the steps shown or described may be accomplished in a different order than that shown herein.
Referring to fig. 1, fig. 1 is a schematic flow chart of a method for replacing a wear plate of a self-elevating wind power installation platform provided by the invention. The method for replacing the wear-resistant plate of the self-elevating wind power installation platform provided by the embodiment of the invention comprises the following steps:
step 101, mounting a first I-steel at the position of a pile leg bolt hole at the upper wear-resisting plate, and mounting a second I-steel and a third I-steel above and below the lower wear-resisting plate respectively; the upper wear-resistant plate and the lower wear-resistant plate are wear-resistant plates to be replaced, and the wear-resistant plates are arranged on the pile legs;
102, determining a first circle center of a circle where the first I-steel is located, determining a second circle center of a circle where the second I-steel is located, and determining a third circle center of a circle where the third I-steel is located;
step 103, judging whether the first circle center, the second circle center and the third circle center are on the same straight line or not based on a total station;
104, if the abrasion plates are on the same straight line, determining the abrasion plates as a central line, and dismantling the upper abrasion plates and the lower abrasion plates;
step 105, determining a deviation value of the groove of the wear-resistant plate based on the central line, and processing a new wear-resistant plate based on the deviation value; the wear-resisting plate groove is a groove reserved on the pile leg after the wear-resisting plate is removed;
and 106, installing and welding the new wear plate.
Specifically, the embodiment of the invention takes 'Hua Xianglong' as an example of wind power platform modification, and describes a new method for replacing the wear-resisting plate of the self-elevating wind power installation platform. In this embodiment, each leg has 16 lower wear plates and 16 upper wear plates, respectively, wherein the upper wear plates and the lower wear plates are wear plates to be replaced, which are mounted on the leg. As shown in fig. 2, fig. 2 is a schematic diagram of distribution of the wear plate of the pile leg, and the distribution of each pile leg is shown in a cross section mode, so that it can be clearly seen that the distribution of the wear plate is symmetrical.
Further, after the platform is docked and the pile leg of the lower wear-resisting plate area is removed, two I-steel strips, namely a second I-steel strip and a third I-steel strip, are arranged at the proper positions above and below the lower wear-resisting plate; and installing an I-steel, namely a first I-steel, at the position of the upper wear-resisting plate corresponding to the bolt hole of the pile leg. It should be noted that the number and specific positions of the i-beams may be determined according to practical situations, and generally, the number of the i-beams should be greater than 3.
Further, a first circle center of a circle where the first I-steel is located is determined, a second circle center of a circle where the second I-steel is located is determined, and a third circle center of a circle where the third I-steel is located is determined. In the embodiment, the diameters of the wear-resistant plates are measured by equally dividing the steel tape in the circumferential direction by 16, the center points of the diameters of the wear-resistant plates are respectively marked on the I-steel panels, and the center points of the steel tape in the circumferential direction are corrected by the 16 equally divided center points, so that each circle center is preliminarily determined. As shown in fig. 3, fig. 3 is a schematic diagram of circle center determination provided by the present invention, wherein a line passing through the circle center in the drawing is: and a connecting line of the centers of the two wear plates.
Further, after the circle center is determined, the corresponding radius needs to be checked twice (3 points are measured for each guide block), and finally, the center point (namely the circle center) of the wear-resisting plate is determined on the I-steel panels, namely the center points of the wear-resisting plate are respectively determined on the three I-steel panels.
Further, using the total station to detect whether the first center, the second center and the third center are on a line. If the first circle center, the second circle center and the third circle center are located on the same vertical line, data analysis is carried out, the circle center is corrected, marks are made on the I-steel panel, and the first circle center, the second circle center and the third circle center are located on the same vertical line. If the straight lines are on the same straight line, the straight line is defined as the center line.
Furthermore, ordering a new wear-resistant plate according to the theoretical thickness and the size required by a pre-designed drawing, and keeping no machining allowance, wherein the arc shape, the end groove and the inner surface smooth surface of the new wear-resistant plate can be processed by manufacturers; the new wear plate is NM400 wear plate.
Further, the upper wear plate and the lower wear plate are removed. Firstly, adopting a carbon planer for "leaving roots" for 5 mm to dig out old welding seams, then polishing to remove the "leaving roots" welding seams, and then carrying out MT flaw detection (magnetic powder detection flaw detection) on parent materials at the positions of the old welding seams. If defects are found in the flaw detection, polishing or repair welding is carried out on the base material. Further, new wear plate mounting lines are drawn to mount new wear plates.
Further, determining the deviation value of the groove of the wear-resisting plate through the central line, and processing the new wear-resisting plate according to the deviation value, wherein the groove of the wear-resisting plate is a groove reserved by the pile leg after the wear-resisting plate is removed. Specifically, the radius value of the cylinder, the diameter of the pile leg and the gap between the wear-resistant plate and the pile leg can be measured according to the center line of the wear-resistant plate, and the theoretical value from the center point to each groove of the wear-resistant plate is determined; and measuring the measured value from the central point to each wear-resisting plate groove, subtracting the measured value from the theoretical value to obtain a deviation value, and converting the deviation value into the new wear-resisting plate machining quantity. It should be noted that each wear-resistant plate groove may be numbered and in one-to-one correspondence with the field measurement.
Further, the new wear plates are processed according to the deviation values, each new wear plate is installed on the cylinder according to the drawing after processing, and the new wear plates are completely attached to the cylinder in a mode of adding code plates. After all the components are installed, the radius of the wear-resisting plate is measured according to the central line, the clearance between the pile leg and the wear-resisting plate is ensured to be not less than 8 mm, and the test is qualified by a pre-welding measuring meter.
Furthermore, carbon dioxide welding is adopted to weld the hanging ring on the new wear-resisting plate, so that the wear-resisting plate is convenient to hoist and mount. The welding material is CHT711, and the wear-resisting plate at the welding position is heated to 100 ℃ by flame before the hanging ring is welded; and checking the welding line after welding to ensure no crack. It should be noted that, the guide plate wear plate size is 40×1500×650 mm (arc length is 651.8 mm), and the original guide plate material is HARDOX400.
Further, the brand of the new wear-resistant plate is NM400, and the machined surface and the groove of the wear-resistant plate are inspected, so that the defects such as cracks and the like are avoided. And polishing to remove impurities including paint, greasy dirt and rust at the root of the groove of the new wear-resisting plate and within 30 mm of the groove.
Further, carbon dioxide welding is adopted to weld the hanging ring on the inner side face of the radian of the novel wear-resisting plate, and GFL-71Ni is used as a welding material. Before the hanging rings are welded, the abrasion-resistant plate at the welding position is heated to 120 ℃ by flame; and after welding, preserving heat and slowly cooling, and checking welding seams after cooling to room temperature, so that the defects of cracks and the like are avoided. Further, the scribing determines the position of a new guide block wear-resisting plate, and the paint, rust, greasy dirt and the like at the welding line position are removed by polishing.
Further, the wear-resistant plate is installed, the positioning welding is carried out, the partial preheating is carried out to 120 ℃ before the positioning welding, the length of the positioning welding is not less than 50 mm, and the welding is carried out twice. When the gap between the wear-resisting plate and the EH36 steel is larger than 5 mm, a backing plate is locally arranged on the EH36 plate according to the requirements of GB/T+34000-2016+China shipbuilding quality Standard 5.1.6.1.1. Wherein, carbon dioxide welding is adopted, 4Ys (GFL-71 Ni) is selected as a welding material, and welding parameters are shown in table 1.
TABLE 1
Further, welding 16 new wear plates in a staggered mode; when the welding bead is primed, the dry extension range of the welding wire is controlled to be 15-20 mm, the angle of the welding gun is controlled, and the welding seam and base materials on two sides are well fused.
Further, preheating to 120 ℃ before welding, wherein the preheating range is the welding line and the range of 50 mm on both sides of the welding line, and measuring the temperature at the position of 50 mm on the outer side of the preheating zone.
Wherein the interlayer temperature is 120-200 ℃, the insulating cotton is covered after welding, and the welding seam is slowly cooled. And after the groove is filled, welding a 10 mm welding leg, and smoothing with the base metal. And (5) carrying out appearance inspection 48 hours after welding, wherein the surface is free of cracks, slag inclusion, air holes and undercut with the depth of more than 0.5 mm. Polishing to eliminate weld flash, spatter, etc. After the appearance inspection is qualified, MT detection (magnetic powder detection) is carried out, and the detection is carried out according to CB, and the grade II is qualified.
According to the method for replacing the self-elevating wind power installation platform wear-resisting plate, the first I-steel is installed at the position of the pile leg bolt hole at the upper wear-resisting plate, and the second I-steel and the third I-steel are respectively installed above and below the lower wear-resisting plate; determining a first circle center of a circle where the first I-steel is located, determining a second circle center of a circle where the second I-steel is located, and determining a third circle center of a circle where the third I-steel is located; judging whether the first circle center, the second circle center and the third circle center are on the same straight line or not based on the total station; if the abrasion plates are on the same straight line, the abrasion plates are determined to be the center line, and the upper abrasion plates and the lower abrasion plates are removed; determining a deviation value of the groove of the wear-resistant plate based on the central line, and processing a new wear-resistant plate based on the deviation value; and installing and welding the new wear-resistant plate.
The self-elevating wind power installation platform wear-resisting plate refreshing method has the following advantages: the center line of the pile leg is determined through the first center, the second center and the third center, so that the deviation value of each wear-resisting plate groove is determined, and then corresponding new wear-resisting plates are processed according to the deviation values, so that the distance between each new wear-resisting plate and the center line after being installed is the same, the installation inaccuracy of the new wear-resisting plates due to the damage or deformation of the pile leg is avoided, the installation accuracy of the new wear-resisting plates is improved, and the performance and the service life of the pile leg are guaranteed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for replacing a wear-resistant plate of a self-elevating wind power installation platform is characterized by comprising the following steps:
the pile leg bolt hole of the upper wear-resisting plate is provided with a first I-steel, and the upper part and the lower part of the lower wear-resisting plate are respectively provided with a second I-steel and a third I-steel; the upper wear-resistant plate and the lower wear-resistant plate are wear-resistant plates to be replaced, and the wear-resistant plates are arranged on the pile legs;
determining a first circle center of a circle where the first I-steel is located, determining a second circle center of a circle where the second I-steel is located, and determining a third circle center of a circle where the third I-steel is located;
judging whether the first circle center, the second circle center and the third circle center are on the same straight line or not based on a total station;
if the abrasion plates are on the same straight line, the abrasion plates are determined to be the center line, and the upper abrasion plates and the lower abrasion plates are removed;
determining a deviation value of the groove of the wear-resistant plate based on the central line, and processing a new wear-resistant plate based on the deviation value; the wear-resisting plate groove is a groove reserved on the pile leg after the wear-resisting plate is removed;
and installing and welding the new wear-resistant plate.
2. The method of replacing a self-elevating wind power installation platform wear plate in accordance with claim 1, wherein said removing said upper wear plate and said lower wear plate comprises:
removing old weld joints by adopting a carbon planer, and leaving the root for 5 mm;
polishing to remove the root-remaining weld;
and performing magnetic powder detection and flaw detection on the base metal at the old weld joint position, and polishing or repair welding the base metal if the defect is found.
3. The method for replacing a wear plate of a self-elevating wind power installation platform according to claim 1, wherein said installing the new wear plate comprises:
and mounting the new wear-resisting plate on the pile leg in a mode of adding the code plate, so that the clearance between the pile leg and the new wear-resisting plate is not less than 8 mm.
4. The method for replacing a wear plate of a self-elevating wind power installation platform according to claim 1, wherein said welding the new wear plate comprises:
carbon dioxide welding is adopted to weld hanging rings on the new wear-resistant plate;
polishing to remove sundries in the groove root and groove 30 mm range of the new wear-resisting plate;
carbon dioxide welding is adopted to weld a hanging ring on the inner side surface of the radian of the new wear-resisting plate;
polishing to remove paint, rust and greasy dirt at the weld joint position;
and installing the new wear-resisting plate and positioning and welding.
5. The method of replacing a self-elevating wind power installation platform wear plate according to claim 4, wherein the dry extension of the welding wire is in the range of 15 to 20 mm during the priming pass.
6. The method for replacing a wear plate of a self-elevating wind power installation platform according to claim 4, further comprising, prior to said installing said new wear plate, tack welding:
preheating the to-be-welded part and the two sides of the to-be-welded part within 50 mm, wherein the preheating temperature is 120 ℃.
7. The method for replacing a wear plate of a self-elevating wind power installation platform according to claim 4, further comprising, after said installing said new wear plate, tack welding:
and covering heat preservation cotton at the welding position to cool the welding seam slowly.
8. The method for replacing the wear-resistant plate of the self-elevating wind power installation platform according to claim 4, wherein after the groove is filled by welding, the welding leg of 10 mm is welded again to form a smooth transition with the base material.
9. The method for replacing a wear plate of a self-elevating wind power installation platform according to claim 4, further comprising, after said installing said new wear plate, tack welding:
at 48 hours after welding, appearance inspection and magnetic powder inspection were performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310750821.6A CN116748811A (en) | 2023-06-25 | 2023-06-25 | Method for replacing wear-resisting plate of self-elevating wind power installation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310750821.6A CN116748811A (en) | 2023-06-25 | 2023-06-25 | Method for replacing wear-resisting plate of self-elevating wind power installation platform |
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| Publication Number | Publication Date |
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| CN116748811A true CN116748811A (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310750821.6A Pending CN116748811A (en) | 2023-06-25 | 2023-06-25 | Method for replacing wear-resisting plate of self-elevating wind power installation platform |
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| Country | Link |
|---|---|
| CN (1) | CN116748811A (en) |
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- 2023-06-25 CN CN202310750821.6A patent/CN116748811A/en active Pending
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