Cleaning mechanism for steam turbine blade scaling and using method

Abstract

The invention relates to the technical field of steam turbine cleaning equipment, in particular to a steam turbine blade scaling cleaning mechanism and a using method. A plurality of stationary blade ring pieces; the washing mechanism is arranged at the top of the main machine table and comprises an electric turntable which is rotatably mounted above the main machine table and is used for bearing and rotating the stationary blade ring piece; the inclined spray head group is positioned above the main machine table and is used for spraying water flow to the rotating stationary blade ring piece; the wiping mechanism comprises an air bin installed above the electric rotating disc. The piston rod is installed in the air bin in a sliding mode. The cleaning device has the beneficial effects that preliminary cleaning is conducted through the inclined spray head set, and most dirt on the surface of the stationary blade ring piece can be effectively removed; and secondly, the piston rod and the bevel wiping piece are pushed by the air bin to do reciprocating motion, the surface of the stationary blade ring piece is wiped and cleaned carefully, and thoroughness and depth of cleaning are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of steam turbine cleaning equipment, in particular to a cleaning mechanism for scaling steam turbine blades and a use method thereof. Background Art

[0002] A steam turbine is an external combustion rotating mechanical device that can convert the thermal energy of steam into mechanical work. Among them, the stator ring is a key component in the steam turbine structure. It is fixed to the partition or the guide vane support ring to remain stationary. These stators are not only responsible for guiding the flow of steam, but also for accelerating the steam. When the stators are located in the steam chamber (also called the nozzle chamber), they are called nozzles; in the speed stage, they act as guide vanes to ensure that the direction of the steam flow is correctly turned to the next moving blade sequence. For reaction turbines, the stators also play the role of nozzles.

[0003] During long-term operation or manufacturing, the surface of the stationary blade ring may accumulate some dirt that needs to be removed. In order to protect the protective layer on the blade surface from damage during the cleaning process, the method usually adopted is for the staff to wipe it manually with a soft cloth. However, this method has certain limitations because the area that can be effectively cleaned each time is small, resulting in low overall cleaning efficiency. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] The object of the present invention is to provide a cleaning mechanism for turbine blade fouling.

[0006] Therefore, the purpose is to solve the problem of protecting the protective layer on the surface of the blade from being damaged during the cleaning process, which is usually done by workers manually wiping it with a soft cloth.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a cleaning mechanism for turbine blade fouling, comprising a main machine platform; a plurality of stationary blade rings; a water washing mechanism, arranged on the top of the main machine platform, comprising: an electric turntable, rotatably installed above the main machine platform, for carrying and rotating the stationary blade rings; an inclined nozzle group, located above the main machine platform, for spraying water to the rotating stationary blade rings; a wiping mechanism comprising: an air bin, installed above the electric turntable; a piston rod, slidably installed inside the air bin, one end of each of the piston rods is connected to the inside of the air bin, and the other end extends out of the air bin, and an oblique wiping piece is fixed to the extended part, when the pressure inside the air bin changes, the piston rod drives the oblique wiping piece to contact or leave the surface of the stationary blade ring, thereby wiping and cleaning the stationary blade ring.

[0008] As a preferred solution of a cleaning mechanism for turbine blade fouling of the present invention, wherein: a plurality of arc-shaped positioning plates are slidably arranged on the upper part of the electric turntable, each of the arc-shaped positioning plates contacts and applies pressure to the side of a stationary blade ring segment respectively; a plurality of brush uprights arranged at equal intervals along its length direction are also fixed to the top of each of the arc-shaped positioning plates; wherein the oblique wiping piece can form a snap-fit ​​structure with a plurality of the brush uprights on the same side to improve the cleaning efficiency.

[0009] As a preferred solution of a cleaning mechanism for turbine blade fouling of the present invention, the wiping mechanism further comprises an electric push rod, the output end of the electric push rod is installed on the top of the gas bin, and the electric push rod can telescopically move in the vertical direction to control the position change of the gas bin; the air pump is horizontally arranged on the side of the electric push rod, and the output end of the air pump is through-connected with the gas bin to fill or extract gas into or out of the gas bin.

[0010] As a preferred solution of a cleaning mechanism for turbine blade fouling of the present invention, at least two bolt rods are rotatably mounted on the outer side of each arc-shaped positioning plate, and the side wall of the electric turntable is provided with internal threads matching the bolt rods.

[0011] As a preferred solution of a cleaning mechanism for turbine blade fouling of the present invention, a placement interval is provided inside the electric turntable, and each of the stationary blade ring segments is designed with a structure matching the placement interval, so that the stationary blade ring segments can be stably engaged in the placement interval.

[0012] As a preferred solution of a cleaning mechanism for turbine blade fouling of the present invention, a plurality of water seepage grooves are arranged inside the placement interval, the water seepage grooves are evenly distributed along the inner wall of the placement interval, and a predetermined distance is maintained between each of the water seepage grooves.

[0013] As a preferred solution of a cleaning mechanism for turbine blade fouling of the present invention, wherein: the beveled wiping piece, the side of the beveled wiping piece is connected to a connecting rod, and one end of the piston rod is provided with a connecting piece; one end of the connecting rod can be slidably installed along the axial direction inside the connecting piece, and the two ends of the elastic piece are respectively fixedly connected to the end of the connecting rod and the connecting piece, so as to provide an elastic force to reset the connecting rod.

[0014] As a preferred solution of a cleaning mechanism for turbine blade fouling of the present invention, the beveled sponge block is fixedly arranged on the side of the connecting rod, and the flexible cloth sleeve is sleeved on the outside of the beveled sponge block, wherein the outer surface of the flexible cloth sleeve is designed to be able to be in extrusion contact with the outer surface of the stationary blade ring.

[0015] As a preferred solution of a cleaning mechanism for turbine blade fouling of the present invention, a support plate is fixed in the middle of the electric turntable, and an electric push rod and an air pump are respectively installed on the support plate.

[0016] In order to solve the above technical problems, the present invention also provides the following technical solutions: a method for using a cleaning mechanism for scaling of steam turbine blades, comprising a cleaning mechanism for scaling of steam turbine blades, and,

[0017] Place the stationary blade rings to be cleaned in the placement intervals on the electric turntable in the main machine platform one by one, ensuring that each stationary blade ring can be firmly engaged in the corresponding placement interval;

[0018] Adjust the position of the arc-shaped positioning plate on the electric turntable so that it is in close contact with the side of the stationary blade ring and fix it with bolt rods. At the same time, ensure that the brush rod on the top of each arc-shaped positioning plate maintains an appropriate distance from the surface of the stationary blade ring;

[0019] Start the water washing mechanism and turn on the electric turntable to make the stationary blade ring rotate with the electric turntable. At the same time, tilt the nozzle group to spray water to the rotating stationary blade ring for preliminary cleaning;

[0020] During the water washing process, the air pump is started to inflate the air chamber, and the piston rod is pressed to push the oblique wiping piece to contact the surface of the stationary blade ring. The stationary blade ring is wiped and cleaned using the oblique sponge block and the flexible cloth cover.

[0021] After cleaning is completed, the air pump draws air from the air chamber, the piston rod retracts, the oblique wiper leaves the surface of the stationary blade ring, and the electric push rod is retracted in the vertical direction to raise the position of the air chamber to facilitate the removal of the cleaned stationary blade ring.

[0022] The beneficial effects of the present invention are as follows: preliminary cleaning is performed by tilting the nozzle group, which can effectively remove most of the dirt on the surface of the stationary blade ring segment; secondly, the piston rod and the oblique wiper are pushed to move back and forth by the air chamber, and the surface of the stationary blade ring segment is carefully wiped and cleaned, ensuring the thoroughness and depth of the cleaning.

[0023] The use of the brush pole and the oblique wiping piece can automatically complete the cleaning of the oblique wiping piece without affecting the normal working process, avoiding the problem of reduced cleaning efficiency or poor cleaning quality caused by contamination of the oblique wiping piece. In addition, this design also helps to extend the service life of the equipment and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0025] Figure 1 The present invention is a schematic diagram of the overall structure of a cleaning mechanism for turbine blade fouling proposed by the present invention.

[0026] Figure 2 The present invention is a schematic diagram of the mainframe top structure of a cleaning mechanism for turbine blade fouling proposed by the present invention.

[0027] Figure 3 This is an exploded view of the overall structure of a cleaning mechanism for turbine blade fouling proposed by the present invention.

[0028] Figure 4 The present invention is a schematic diagram of the wiping mechanism structure of a cleaning mechanism for turbine blade fouling.

[0029] Figure 5 The present invention provides a cross-sectional view of the air chamber structure of a cleaning mechanism for cleaning fouling of steam turbine blades.

[0030] Figure 6 The present invention is a schematic diagram of the structure of an arc-shaped positioning plate of a cleaning mechanism for cleaning scale on steam turbine blades.

[0031] Figure 7 The present invention is a cross-sectional view of the structure of an oblique-mouth wiping member of a cleaning mechanism for cleaning fouling of steam turbine blades.

[0032] Figure 8 The present invention is a schematic diagram of the state of the oblique wiping piece engaging with the brush upright rod of the cleaning mechanism for cleaning scale on steam turbine blades proposed by the present invention.

[0033] Fig. 9 The present invention is a schematic diagram of a state in which an oblique-mouth wiping piece of a cleaning mechanism for cleaning scale on steam turbine blades is engaged with a stationary blade ring.

[0034] Fig.10 The present invention is a schematic diagram of a state in which an oblique wiping member of a cleaning mechanism for cleaning scale on steam turbine blades is squeezed into an arc-shaped positioning plate.

[0035] In the figure:

[0036] 100. Main machine platform; 101. Stationary blade ring; 102. Water washing mechanism; 103. Electric turntable; 104. Inclined nozzle group; 105. Arc positioning plate; 106. Brush pole; 107. Bolt rod; 108. Placement interval; 109. Water seepage trough;

[0037] 200, wiping mechanism; 201, air chamber; 202, piston rod; 203, oblique wiping member; 204, electric push rod; 205, air pump; 206, connecting rod; 207, connecting member; 207-1, elastic member; 208, oblique sponge block; 209, flexible cloth cover;

[0038] 300. Support plate. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0042] Example 1

[0043] Reference Figure 1-3, which is the first embodiment of the present invention, provides a cleaning mechanism for turbine blade fouling, including a mainframe 100; a plurality of stationary blade rings 101; a water washing mechanism 102, arranged on the top of the mainframe 100, including: an electric turntable 103, rotatably installed above the mainframe 100, used to carry and rotate the stationary blade rings 101; an inclined nozzle group 104, located above the mainframe 100, used to spray water to the rotating stationary blade rings 101 to achieve preliminary cleaning; a wiping mechanism 102, which is arranged on the top of the mainframe 100, including: an electric turntable 103, which is rotatably installed above the mainframe 100, used to carry and rotate the stationary blade rings 101; a tilting nozzle group 104, which is located above the mainframe 100, used to spray water to the rotating stationary blade rings 101 to achieve preliminary cleaning; The wiping mechanism 200 includes: an air bin 201, installed above the electric turntable 103; a plurality of piston rods 202, slidably installed inside the air bin 201, one end of each piston rod 202 is connected to the inside of the air bin 201, and the other end extends out of the air bin 201, and an oblique wiping piece 203 is fixed to the extended part. When the pressure changes inside the air bin 201, the piston rod 202 drives the oblique wiping piece 203 to contact or leave the surface of the stationary blade ring 101, thereby achieving wiping and cleaning of the stationary blade ring 101.

[0044] In this embodiment, the host station 100 not only carries all functional components, but also has a built-in control system responsible for coordinating the workflow of each component.

[0045] The electric turntable 103 is installed at the center of the upper part of the mainframe 100 to fix the stationary blade ring piece 101 to be cleaned. The electric turntable 103 can rotate slowly according to a preset program to ensure that all surfaces of the stationary blade ring piece 101 can be evenly contacted with the cleaning liquid and cleaning tools.

[0046] The inclined nozzle group 104 is arranged on the side of the electric turntable 103 and is composed of a plurality of nozzles with adjustable angles. These nozzles can adjust the spray direction according to the specific shape of the stationary blade ring 101. The inclined nozzle group 104 is connected to the cleaning liquid storage system to continuously spray an appropriate amount of cleaning liquid into the electric turntable 103.

[0047] The air chamber 201 is filled with compressed air or gas, and the piston rod 202 is driven to move radially outward by controlling the air pressure change. When the piston rod 202 is extended, the oblique wiping piece 203 connected to its end is close to the outer surface of the stationary blade ring 101, and moves synchronously with the rotation of the electric turntable 103 to complete the physical wiping process.

[0048] The oblique wiper 203 is made of soft wear-resistant material and is designed at a specific angle to better fit the contour of the stationary blade ring 101 and improve the cleaning effect. The oblique wiper 203 can be flexibly adjusted under the drive of the piston rod 202 to adapt to stationary blade rings 101 of different sizes.

[0049] Specifically, firstly, the stationary blade ring segment 101 to be cleaned is stably placed at a designated position of the electric turntable 103, and ensured to be well fixed to prevent displacement during the cleaning process.

[0050] The operator starts the cleaning program through the control panel on the main machine 100, and the electric turntable 103 starts to rotate slowly, while the tilting nozzle group 104 sprays the cleaning liquid onto the surface of the stationary blade ring 101 according to a predetermined pattern.

[0051] Chemical cleaning: The cleaning liquid sprayed by the inclined nozzle group 104 can effectively remove pollutants such as oil and carbon deposits on the surface of the stationary blade ring segment 101. The selection of the cleaning liquid needs to consider the compatibility of the material of the stationary blade ring segment 101 to avoid corrosion or damage.

[0052] Physical wiping: At the same time, the air pressure in the air chamber 201 gradually increases, pushing the piston rod 202 out, so that the oblique wiping piece 203 closely contacts the outer surface of the stationary blade ring 101. As the electric turntable 103 rotates, the oblique wiping piece 203 moves along the contour of the stationary blade ring 101, using mechanical friction to further remove residual dirt to ensure thorough cleaning.

[0053] After the cleaning is completed, the electric turntable 103 stops rotating, the piston rod 202 retracts, and the oblique wiper 203 is separated from the stationary blade ring 101. At this time, the operator can safely take out the stationary blade ring 101 that has been cleaned and place it in a drying area for subsequent treatment. The waste liquid generated during the cleaning process is collected through a special recovery pipeline to avoid environmental pollution.

[0054] Example 2

[0055] Reference Figure 3-10 , which is the second embodiment of the present invention, and provides a cleaning mechanism for turbine blade fouling. A plurality of arc-shaped positioning plates 105 are slidably arranged on the upper part of the electric turntable 103, and each arc-shaped positioning plate 105 contacts and applies pressure to the side of a stationary blade ring 101; a plurality of brush uprights 106 arranged at equal intervals along the length direction are fixed to the top of each arc-shaped positioning plate 105; wherein the oblique-mouth wiping member 203 can form a snap-fit ​​structure with the plurality of brush uprights 106 on the same side to improve the cleaning efficiency. At least two bolt rods 107 are rotatably mounted on the outer side of each arc-shaped positioning plate 105, and the side wall of the electric turntable 103 is provided with an internal thread matching the bolt rod 107.

[0056] In this embodiment, the arc-shaped positioning plate 105 is installed on the inner side of the electric turntable 103 to fix the stationary blade ring segment 101. Two symmetrically distributed bolt rods 107 are rotatably installed on the side of each arc-shaped positioning plate 105, and the bolt rods 107 are threadedly connected to the side wall of the electric turntable 103. By rotating the bolt rods 107, the position of the arc-shaped positioning plate 105 can be adjusted to move it inward or outward, thereby achieving the clamping or loosening of the stationary blade ring segment 101. This design not only ensures the stability of the stationary blade ring segment 101 during the cleaning process, but also can adapt to stationary blade ring segments 101 of different diameters.

[0057] The brush stand 106 is installed on the top of the arc-shaped positioning plate 105 and arranged in an inclined shape. When the oblique wiper 203 completes the cleaning of the stationary blade ring 101, the piston rod 202 extends outward, driving the oblique wiper 203 to move in the horizontal direction and synchronously engage with the brush stand 106. The bristles on the brush stand 106 can effectively remove the residue inside the oblique wiper 203, ensuring that the oblique wiper 203 is always kept clean and ready for the next cleaning.

[0058] Specifically, the stationary blade ring segment 101 to be cleaned is placed inside the electric turntable 103. Then, the arc-shaped positioning plate 105 is moved inward by rotating the bolt rod 107 until the arc-shaped positioning plate 105 tightly clamps the outer side of the stationary blade ring segment 101 to ensure that the stationary blade ring segment 101 will not be displaced during the cleaning process.

[0059] Start cleaning: Start the electric turntable 103, and the turntable starts to rotate slowly. At the same time, the piston rod 202 controls the oblique wiper 203 to move horizontally so that it fits closely to the surface of the stationary blade ring 101. As the electric turntable 103 rotates, the oblique wiper 203 continuously rubs the surface of the stationary blade ring 101, effectively removing dust and oil on the surface.

[0060] When the oblique wiping piece 203 finishes cleaning the stationary blade ring 101, the piston rod 202 extends outward, driving the oblique wiping piece 203 to move in the horizontal direction, and synchronously engages with the brush stand 106 on the top of the arc-shaped positioning plate 105. The bristles on the brush stand 106 can effectively remove the residue inside the oblique wiping piece 203, ensuring that the oblique wiping piece 203 is always kept clean and ready for the next cleaning.

[0061] The output end of the electric push rod 204 is installed on the top of the gas chamber 201. The electric push rod 204 can telescopically move in the vertical direction to control the position change of the gas chamber 201. The air pump 205 is horizontally arranged on the side of the electric push rod 204. The output end of the air pump 205 is connected to the gas chamber 201 and is used to fill or extract gas from the gas chamber 201. At least two bolt rods 107 are rotatably installed on the outer side of each arc-shaped positioning plate 105, and the side wall of the electric turntable 103 is provided with internal threads matching the bolt rods 107.

[0062] In this embodiment, the user places the stationary blade ring piece 101 to be cleaned inside the electric turntable 103. Ensure that the position of the stationary blade ring piece 101 is correct so that the subsequent cleaning process can proceed smoothly.

[0063] Next, the user starts the electric push rod 204, and the output end of the electric push rod 204 extends outward, pushing the gas chamber 201, the piston rod 202 and the oblique wiper 203 to descend synchronously. The oblique wiper 203 gradually contacts the outer surface of the stationary blade ring 101 and applies a certain pressure to make it close to the surface of the stationary blade ring 101.

[0064] At the same time, the air pump 205 is started to intermittently introduce and export high-pressure gas into the air chamber 201. When the high-pressure gas enters the air chamber 201, the piston rod 202 is pushed downward, driving the oblique-mouthed wiper 203 to move downward; when the air pump 205 discharges the gas in the air chamber 201, the piston rod 202 moves upward under the negative pressure inside the air chamber 201. In this way, the oblique-mouthed wiper 203 reciprocates on the outer surface of the stationary blade ring 101 to achieve thorough cleaning of its surface.

[0065] During the cleaning process, the electric turntable 103 rotates slowly, so that different parts of the stationary blade ring 101 can be evenly cleaned by the oblique wiper 203. This process not only improves the cleaning efficiency, but also ensures the uniformity of the cleaning effect.

[0066] When the cleaning work of the stationary blade ring piece 101 is completed, the user stops the work of the air pump 205 and the electric push rod 204. The output end of the electric push rod 204 retracts, driving the air chamber 201, the piston rod 202 and the oblique wiper 203 to rise and separate from the surface of the stationary blade ring piece 101.

[0067] In order to prevent the dirt remaining on the oblique wiping piece 203 from affecting the next cleaning effect, the user controls the piston rod 202 to extend outward continuously through the air pump 205, and at the same time drives the oblique wiping piece 203 to move synchronously in the horizontal direction, and synchronously engages with a plurality of inclined brush uprights 106 on the top of the arc-shaped positioning plate 105. The brush uprights 106 brush the inside of the oblique wiping piece 203 to remove the remaining dirt, ensuring that the oblique wiping piece 203 remains clean.

[0068] A placement area 108 is provided inside the electric turntable 103, and each stationary blade ring piece 101 is designed with a structure matching the placement area 108, so that the stationary blade ring piece 101 can be stably engaged in the placement area 108. The oblique wiper 203 has an inclined edge of a predetermined angle; a connecting rod 206 is connected to the side of the oblique wiper 203, and a connecting piece 207 is provided at one end of the piston rod 202; one end of the connecting rod 206 can be slidably installed inside the connecting piece 207 along the axial direction, and the two ends of the elastic piece 207-1 are respectively fixedly connected to the end of the connecting rod 206 and the connecting piece 207, which is used to provide an elastic force to reset the connecting rod 206.

[0069] In this embodiment, as the oblique wiper 203 gradually approaches the stationary blade ring segment 101, due to the special design of the oblique wiper 203, it can initially fit the outer surface of the stationary blade ring segment 101. When encountering stationary blade ring segments 101 of different sizes, the oblique wiper 203 will be subjected to a reaction force from the stationary blade ring segment 101 at the moment of contacting the stationary blade ring segment 101. At this time, the end of the connecting rod 206 will be forced to overcome the resistance of the elastic member 207-1, and a certain degree of horizontal displacement will occur along the inside of the connecting member 207, so that the oblique wiper 203 fits more closely to the surface of the stationary blade ring segment 101, realizing the "adaptive" cleaning function.

[0070] Example 3

[0071] Reference Figure 7-9 , which is the third embodiment of the present invention, provides a cleaning mechanism for turbine blade fouling, wherein the oblique sponge block 208 is fixedly arranged on the side of the connecting rod 206, and the flexible cloth sleeve 209 is sleeved on the outside of the oblique sponge block 208, wherein the outer surface of the flexible cloth sleeve 209 is designed to be able to be pressed and contacted with the outer surface of the stationary blade ring 101. A support plate 300 is fixed in the middle of the electric turntable 103, and the electric push rod 204 and the air pump 205 are respectively installed on the support plate 300.

[0072] In this embodiment, the oblique-mouth wiping piece 203 is composed of an oblique-mouth sponge block 208 and a flexible cloth cover 209. The oblique-mouth design enables the wiping piece to better fit the curved surface of the stationary blade ring segment 101, ensuring the cleaning effect. The flexible cloth cover 209 covers the outer surface of the oblique-mouth sponge block 208, which can effectively wipe the stationary blade ring segment 101 on the one hand, and can also reduce scratches on the surface of the stationary blade ring segment 101 on the other hand, protecting its surface from damage.

[0073] The bolt rod 107 is used to adjust the position of the arc-shaped positioning plate 105 so that it can be flush with the inner surface of the placement interval 108. When it is necessary to self-clean the oblique sponge block 208 inside the oblique wiping member 203, the user rotates the bolt rod 107 to move the arc-shaped positioning plate 105 horizontally to the inner surface of the placement interval 108. Subsequently, the air pump 205 controls the oblique wiping member 203 to move horizontally, squeezes the arc-shaped positioning plate 105 and the inner surface of the placement interval 108, thereby compressing the oblique sponge block 208 and squeezing out the sewage inside, thereby realizing the self-cleaning function.

[0074] Specifically, the user fixes the stationary blade ring 101 to be cleaned on the device. The air pump 205 is started, and the piston rod 202 extends outward, pushing the oblique wiping piece 203 to cling to the outer surface of the stationary blade ring 101, and starts wiping. The flexible cloth cover 209, supported by the oblique sponge block 208, gently and effectively cleans the stationary blade ring 101, avoiding the risk of scratching the surface.

[0075] After the stationary blade ring 101 is cleaned, the user removes the stationary blade ring 101. Then, the air pump 205 continues to control the piston rod 202 to extend outward, so that the oblique wiping piece 203 moves in the horizontal direction and is synchronously engaged with the inclined brush upright 106 at the top of the arc-shaped positioning plate 105. As the oblique wiping piece 203 moves, the flexible cloth cover 209 contacts the outer surface of the brush upright 106, and the bristles of the brush upright 106 clean the flexible cloth cover 209 to remove dirt on the surface.

[0076] The user rotates the bolt rod 107 to move the arc-shaped positioning plate 105 horizontally to the inner surface of the placement interval 108. Then, the air pump 205 is started again to control the oblique wiping piece 203 to move horizontally, squeeze the arc-shaped positioning plate 105 and the inner surface of the placement interval 108, compress the oblique sponge block 208, squeeze out the sewage inside, and complete the self-cleaning process of the oblique wiping piece 203.

[0077] A method for using a cleaning mechanism for turbine blade fouling, wherein the stationary blade ring piece 101 to be cleaned is placed steadily at a designated position of an electric turntable 103, and is ensured to be well fixed. An operator starts the cleaning procedure through a control panel on a main console 100. The electric turntable 103 begins to rotate slowly, and at the same time, the tilted nozzle group 104 sprays cleaning liquid on the surface of the stationary blade ring piece 101 according to a predetermined pattern to chemically remove surface dirt. The air pressure in the air chamber 201 gradually increases, pushing the piston rod 202 to extend, so that the oblique wiper 203 closely contacts the outer surface of the stationary blade ring piece 101, and moves synchronously with the rotation of the electric turntable 103, and further removes the residual dirt through physical friction. After the cleaning is completed, the electric turntable 103 stops rotating, the piston rod 202 retracts, and the oblique wiper 203 is separated from the stationary blade ring piece 101. The operator can safely take out the stationary blade ring piece 101 that has been cleaned, and place it in a drying area for subsequent processing. The waste liquid generated during the cleaning process is collected through a special recovery pipeline to avoid environmental pollution.

[0078] Embodiment 2 adds the design of arc-shaped positioning plate 105 and brush upright rod 106 on the basis of embodiment 1 to enhance the cleaning effect and self-cleaning ability after cleaning. By rotating the bolt rod 107, the arc-shaped positioning plate 105 moves inward until the arc-shaped positioning plate 105 tightly clamps the outer side of the stationary blade ring 101 to ensure that the stationary blade ring 101 will not be displaced during the cleaning process. Start the electric turntable 103, and the turntable begins to rotate slowly. The piston rod 202 controls the oblique wiper 203 to move in the horizontal direction so that it fits closely to the surface of the stationary blade ring 101. As the electric turntable 103 rotates, the oblique wiper 203 continuously rubs the surface of the stationary blade ring 101, effectively removing dust and oil on the surface. When the oblique wiper 203 completes the cleaning of the stationary blade ring 101, the piston rod 202 extends outward, driving the oblique wiper 203 to move in the horizontal direction, and synchronously engages with the brush upright rod 106 at the top of the arc-shaped positioning plate 105. The bristles on the brush upright 106 can effectively remove the residue inside the oblique wiping piece 203, ensuring that the oblique wiping piece 203 is always kept clean and ready for the next cleaning.

[0079] Embodiment 3 further optimizes the design of the oblique-mouth wiping piece 203 , introduces an oblique-mouth sponge block 208 and a flexible cloth cover 209 , thereby improving the cleaning effect and reducing potential damage to the surface of the stationary blade ring 101 .

[0080] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0081] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0082] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A cleaning mechanism for turbine blade fouling, characterized in that: include, Host station (100); A plurality of stationary blade rings (101); The water washing mechanism (102) is arranged on the top of the main machine platform (100), and comprises: An electric turntable (103) is rotatably mounted above the main machine platform (100) and is used to carry and rotate the stationary blade ring (101); An inclined spray head group (104) is located above the main machine platform (100) and is used to spray water flow toward the rotating stationary blade ring (101); The wiping mechanism (200) comprises: An air chamber (201) is installed above the electric turntable (103); The piston rod (202) is slidably installed inside the gas bin (201), one end of each piston rod (202) is connected to the inside of the gas bin (201), and the other end extends out of the gas bin (201), and an oblique wiping piece (203) is fixed to the extended part. When the pressure inside the gas bin (201) changes, the piston rod (202) drives the oblique wiping piece (203) to contact or leave the surface of the stationary blade ring (101), thereby wiping and cleaning the stationary blade ring (101).

2. A steam turbine blade fouling cleaning mechanism as claimed in claim 1, characterized in that: A plurality of arc-shaped positioning plates (105) are slidably arranged on the upper part of the electric turntable (103), and each of the arc-shaped positioning plates (105) contacts and applies pressure to the side surface of a stationary blade ring (101); a plurality of brush uprights (106) arranged at equal intervals along the length direction of each arc-shaped positioning plate (105) are also fixed on the top of each arc-shaped positioning plate (105); The oblique-mouth wiping piece (203) can form a snap-fit ​​structure with a plurality of brush uprights (106) on the same side to improve cleaning efficiency.

3. A steam turbine blade fouling cleaning mechanism as claimed in claim 2, characterized in that: The wiping mechanism (200) further comprises an electric push rod (204), the output end of which is mounted on the top of the gas bin (201), and the electric push rod (204) is capable of telescopic movement in a vertical direction, so as to control the position change of the gas bin (201); The air pump (205) is horizontally arranged on the side of the electric push rod (204), and the output end of the air pump (205) is connected to the air bin (201) for filling or extracting gas from the air bin (201).

4. A steam turbine blade fouling cleaning mechanism as claimed in claim 3, characterized in that: At least two bolt rods (107) are rotatably mounted on the outer side of each arc-shaped positioning plate (105), and the side wall of the electric turntable (103) is provided with internal threads matching the bolt rods (107).

5. A steam turbine blade fouling cleaning mechanism as claimed in claim 4, characterized in that: A placement area (108) is provided inside the electric turntable (103), and each of the stationary blade ring segments (101) is designed with a structure matching the placement area (108), so that the stationary blade ring segment (101) can be stably engaged in the placement area (108).

6. A steam turbine blade fouling cleaning mechanism as claimed in claim 5, characterized in that: A plurality of water seepage grooves (109) are arranged inside the placement interval (108); the water seepage grooves (109) are evenly distributed along the inner wall of the placement interval (108), and a predetermined distance is maintained between each of the water seepage grooves (109).

7. A steam turbine blade fouling cleaning mechanism as claimed in claim 1, characterized in that: The oblique-mouth wiping piece (203) is connected to a connecting rod (206) on its side, and a connecting piece (207) is provided at one end of the piston rod (202); one end of the connecting rod (206) can be slidably installed along the axial direction inside the connecting piece (207), and both ends of the elastic piece (207-1) are respectively fixedly connected to the end of the connecting rod (206) and the connecting piece (207), so as to provide an elastic force for resetting the connecting rod (206).

8. A steam turbine blade fouling cleaning mechanism as claimed in claim 7, characterized in that: The oblique sponge block (208) is fixedly arranged on the side of the connecting rod (206), and the flexible cloth sleeve (209) is sleeved on the outside of the oblique sponge block (208), wherein the outer surface of the flexible cloth sleeve (209) is designed to be able to be in compression contact with the outer surface of the stationary blade ring (101).

9. A steam turbine blade fouling cleaning mechanism as claimed in claim 8, characterized in that: A support plate (300) is fixed in the middle of the electric turntable (103), and an electric push rod (204) and an air pump (205) are respectively mounted on the support plate (300).

10. A method for using a cleaning mechanism for cleaning scale on steam turbine blades, characterized in that: A cleaning mechanism for cleaning steam turbine blade fouling comprising any one of claims 1 to 9, and Place the stationary blade rings to be cleaned in the placement intervals on the electric turntable in the main machine platform one by one, ensuring that each stationary blade ring can be firmly engaged in the corresponding placement interval; Adjust the position of the arc-shaped positioning plate on the electric turntable so that it is in close contact with the side of the stationary blade ring and fix it with bolt rods. At the same time, ensure that the brush rod on the top of each arc-shaped positioning plate maintains an appropriate distance from the surface of the stationary blade ring; Start the water washing mechanism and turn on the electric turntable to make the stationary blade ring rotate with the electric turntable. At the same time, tilt the nozzle group to spray water to the rotating stationary blade ring for preliminary cleaning; During the water washing process, the air pump is started to inflate the air chamber, and the piston rod is pressed to push the oblique wiping piece to contact the surface of the stationary blade ring. The stationary blade ring is wiped and cleaned using the oblique sponge block and the flexible cloth cover. After cleaning is completed, the air pump draws air from the air chamber, the piston rod retracts, the oblique wiper leaves the surface of the stationary blade ring, and the electric push rod is retracted in the vertical direction to raise the position of the air chamber to facilitate the removal of the cleaned stationary blade ring.

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