Auxiliary device for steam turbine maintenance

By designing an iron frame and cleaning mechanism for fixing the shaft, the problem of unfixed and incomplete cleaning of the shaft in the turbine maintenance is solved, and the stable fixation and efficient cleaning of the shaft is achieved, which improves maintenance efficiency and safety.

CN223288589UActive Publication Date: 2025-09-02HUADIAN ZOUXIAN POWER GENERATION CO LTD
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Patent Information

Application Number
CN202421979242.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-15
Publication Date
2025-09-02
Estimated Expiration
2034-08-15

AI Technical Summary

Technical Problem

In the existing steam turbine maintenance auxiliary devices, the shaft cannot be effectively fixed, resulting in rotation and movement, which brings inconvenience and safety hazards to maintenance operations. At the same time, the rotor cleaning does not completely affect the maintenance efficiency.

Method used

A steam turbine maintenance auxiliary device including an iron frame, an upper clamp, a lower clamp, a push plate and a cleaning mechanism is designed. The rotary shaft is fixed by bolts and magnetic suction blocks, and the rotary shaft is fixed and cleaned by combining a high-pressure water pump and a cleaning brush.

Benefits of technology

Effectively fix the shaft, prevents rotation and movement, improves maintenance safety and efficiency, and ensures the rotor cleaning through high-pressure water flow and cleaning brushes, shortening maintenance time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of maintenance auxiliary devices, and discloses a steam turbine maintenance auxiliary device which comprises an iron stand, sliding grooves are formed in the front side and the rear side of the interior of the iron stand, upper clamping plates are slidably connected to the tops of the sliding grooves, and lower clamping plates are fixedly connected to the middles of the left side and the right side of the iron stand. Fixing plates are fixedly connected to the middles of the left side and the right side of the outer wall of the iron frame, second bolts are in threaded connection to the middles of the left sides of the outer walls of the fixing plates, a push plate is rotationally connected to the other ends of the second bolts, and sliding rods penetrate through the front side and the rear side of the outer wall of the push plate; a cleaning mechanism is installed in the middle of the top wall of the bearing plate and used for cleaning the steam turbine rotor. According to the cleaning device, the cleaning mechanism can clean the rotor of the steam turbine, the high-pressure water pump sprays water flow to the surface of the rotor through the multi-nozzle pipe, and the problem that the rotor is not clean enough due to the fact that manual cleaning is not in place is effectively solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of maintenance auxiliary devices, in particular to a steam turbine maintenance auxiliary device. Background Art

[0002] A steam turbine is a rotary power machine that converts the thermal energy of steam into mechanical energy. It consists of two major parts: a stator and a rotor. In large thermal power plants, high-temperature and high-pressure steam drives the steam turbine to rotate, allowing the steam turbine to drive the generator to generate electricity. In ship power systems, steam turbines can provide power for ships.

[0003] During the use of the steam turbine, a device is needed to assist the staff in repairing the steam turbine. This requires a steam turbine maintenance auxiliary device. The steam turbine maintenance auxiliary device can shorten the time for staff to repair the steam turbine and improve the efficiency of maintenance.

[0004] In the existing technology, the turbine maintenance auxiliary device relies on the turbine's own gravity to place the rotating shaft in the groove of the maintenance auxiliary device. However, since the turbine rotating shaft cannot be effectively fixed, the rotating shaft will rotate and move left and right, causing inconvenience to the maintenance operations of the staff and posing certain safety hazards. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a steam turbine maintenance auxiliary device, which aims to improve the problem in the prior art that the rotation of the shaft during steam turbine maintenance affects the maintenance of the workers.

[0006] The top of described sliding panel also is provided with an inner wall of described sliding panel, and the bottom of described sliding panel is provided with an inner wall of described sliding panel, and the bottom of described sliding panel is provided with an inner wall of described sliding panel.

[0007] As a further description of the above technical solution:

[0008] The steam turbine components include a barrel, which is fixedly connected to the middle of the top wall of the supporting plate, a barrel cover is slidably connected to the inside of the barrel, a high-pressure water pump is fixedly connected to the middle of the rear side of the outer wall of the barrel, the input end of the high-pressure water pump is connected to the water inlet pipe, and the output end of the high-pressure water pump is connected to a multi-nozzle pipe, which is installed in the middle of the rear side of the inner wall of the barrel, a cleaning brush is fixedly connected to the bottom of the barrel at equal intervals, a water trough is provided in the middle of the inner bottom wall of the barrel, and fans are fixedly connected to the middle of the left and right sides of the iron frame.

[0009] As a further description of the above technical solution:

[0010] The bottom of the iron frame is fixedly connected with a bearing plate, and a groove is formed on the top wall of the bearing plate.

[0011] As a further description of the above technical solution:

[0012] A water outlet is provided at the middle and lower portion of the right side of the top wall of the supporting plate, and a piston is installed inside the water outlet.

[0013] As a further description of the above technical solution:

[0014] Guardrails are installed on the front and rear sides of the top of the supporting plate, and a rotating shaft is fixedly connected to the bottom of the guardrail.

[0015] As a further description of the above technical solution:

[0016] Baffles are fixedly connected to the four sides of the bottom of the carrying plate, and universal wheels are installed on the bottom of the baffles.

[0017] As a further description of the above technical solution:

[0018] The front and rear sides of the outer wall of the iron frame are fixedly connected with rubber strips, and the rubber strips are equidistantly installed on the outer wall of the iron frame.

[0019] As a further description of the above technical solution:

[0020] Lamp holders are fixedly connected to the middle parts of the left and right sides of the iron frame, and lamp tubes are installed on the inner walls of the lamp holders.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the upper clamping plate and the lower clamping plate cooperate with a pair of bolts to limit the upper and lower positions of the turbine shaft, and the push plate limits the left and right positions of the shaft through two bolts, which effectively avoids the problem of the turbine position being unstable and deflected due to the rotation of the shaft during the maintenance of the turbine, making it more convenient for the staff to repair the turbine.

[0023] 2. In the utility model, the cleaning mechanism can clean the rotor of the steam turbine. The high-pressure water pump sprays water onto the rotor surface through the multi-nozzle pipe. The rotor rotates under the drive of the high-pressure water flow, and the dust on the surface is cleaned by the cleaning brush, which effectively solves the problem of the rotor not being clean enough due to inadequate manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of a steam turbine maintenance auxiliary device proposed by the utility model;

[0025] Figure 2 This is a bottom view of a steam turbine maintenance auxiliary device proposed by the utility model;

[0026] Figure 3 This is a partial structural breakdown diagram of a steam turbine maintenance auxiliary device proposed in the utility model;

[0027] Figure 4 This is an exploded diagram of the structure of a cleaning mechanism of a steam turbine maintenance auxiliary device proposed in the utility model;

[0028] Figure 5 This is a cross-sectional view of a steam turbine maintenance auxiliary device proposed by the utility model.

[0029] Legend:

[0030] 1. Iron frame; 2. Cleaning mechanism; 201. Round barrel; 202. Barrel cover; 203. High-pressure water pump; 204. Water inlet pipe; 205. Multi-nozzle pipe; 206. Cleaning brush; 207. Sink; 208. Fan; 3. Slide; 4. Upper clamping plate; 5. Bolt 1; 6. Lower clamping plate; 7. Magnetic block; 8. Fixed plate; 9. Bolt 2; 10. Push plate; 11. Slide rod; 12. Load-bearing plate; 13. Groove; 14. Water outlet; 15. Piston; 16. Guardrail; 17. Rotating shaft; 18. Baffle; 19. Universal wheel; 20. Rubber strip; 21. Lamp holder; 22. Lamp tube. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 3The utility model provides an embodiment of a steam turbine maintenance auxiliary device, comprising an iron frame 1, wherein the front and rear sides of the interior of the iron frame 1 are provided with a slide groove 3, the top of the slide groove 3 is slidably connected to an upper clamping plate 4, the front and rear sides of the top wall of the upper clamping plate 4 are threadedly connected to a bolt 5, the middle of the left and right sides of the iron frame 1 are fixedly connected to a lower clamping plate 6, the front and rear sides of the top wall of the lower clamping plate 6 are installed with a magnetic block 7, the middle of the left and right sides of the outer wall of the iron frame 1 are fixedly connected to a fixing plate 8, and the middle of the left side of the outer wall of the fixing plate 8 is threadedly connected to a bolt 9 The other end of the bolt 2 9 is rotatably connected to the push plate 10. The front and rear sides of the outer wall of the push plate 10 are penetrated by a slide rod 11. One end of the slide rod 11 is fixedly connected to the middle of the inner wall of the fixed plate 8. The other end of the slide rod 11 is fixedly connected to the middle of the outer wall of the lower clamping plate 6. The bottom of the iron frame 1 is fixedly connected to the supporting plate 12. The middle of the top wall of the supporting plate 12 is equipped with a cleaning mechanism 2. The cleaning mechanism 2 is used to clean the turbine rotor; the middle of the left and right sides of the iron frame 1 are fixedly connected to the lamp holder 21, and the inner wall of the lamp holder 21 is equipped with a lamp tube 22;

[0033] When the bolt 29 is turned, the push plate 10 will slide on the outer wall of the slide bar 11, and the push plate 10 will push the shaft to move left or right by rotating the bolt 29, thereby realizing the left and right limit of the shaft. When the steam turbine is repaired, there will be a dark light situation. Turning on the lamp tube 22 installed in the middle of the iron frame 1 can provide a good lighting effect.

[0034] Reference Figure 1 and Figure 4 The steam turbine components include a barrel 201, which is fixedly connected to the middle of the top wall of the bearing plate 12, and a barrel cover 202 is slidably connected to the inside of the barrel 201. A high-pressure water pump 203 is fixedly connected to the middle of the rear side of the outer wall of the barrel 201. The input end of the high-pressure water pump 203 is connected to the water inlet pipe 204, and the output end of the high-pressure water pump 203 is connected to the multi-nozzle pipe 205. The multi-nozzle pipe 205 is installed in the middle of the rear side of the inner wall of the barrel 201. A cleaning brush 206 is equidistantly fixedly connected to the bottom of the barrel 201, a water trough 207 is provided in the middle of the inner bottom wall of the barrel 201, and a fan 208 is fixedly connected to the middle of the left and right sides of the iron frame 1; a water outlet 14 is provided in the middle and lower part of the right side of the top wall of the bearing plate 12, and a piston 15 is installed inside the water outlet 14;

[0035] Specifically, the barrel cover 202 is removed from the inside of the barrel 201, thereby forming a cleaning space sealed on all sides to prevent water from overflowing during the cleaning process and ensure the cleanliness and safety of the cleaning environment. The high-pressure water pump 203 is started. Under the drive of the high-pressure water pump 203, water flows through the multi-nozzle pipe 205 and is sprayed onto the surface of the rotor to quickly remove oil and impurities on the surface of the rotor, prompting the rotor to start to rotate slowly. A cleaning brush 206 is installed at the bottom of the barrel 201. When the rotor rotates under the action of the high-pressure water flow, the cleaning brush 206 will clean the surface of the rotor. The surface is brushed. During the cleaning process, the dripping water will be discharged from the water tank 207, making the cleaning process more environmentally friendly and sustainable. After the cleaning is completed, the fan 208 is turned on and the residual water on the surface of the rotor is quickly dried by the effect of wind, which speeds up the subsequent use time of the rotor and improves the efficiency of the equipment. When a sufficient amount of water is stored on the top of the supporting plate 12, the piston 15 is opened and the water is discharged from the water outlet 14. The model of the high-pressure water pump 203 is TYPE150-S50 and the model of the fan is YJ-021.

[0036] Reference Figure 1 and Figure 2 The bottom of the iron frame 1 is fixedly connected to a bearing plate 12, and a groove 13 is provided on the top wall of the bearing plate 12; guardrails 16 are installed on the front and rear sides of the top of the bearing plate 12, and a rotating shaft 17 is fixedly connected to the bottom of the guardrail 16;

[0037] Specifically, the groove 13 opened on the top of the supporting plate 12 can effectively store the water dripping from both sides of the barrel 201. The top of the supporting plate 12 is equipped with a guardrail 16, which can effectively prevent the staff from falling. The guardrail 16 can be rotated by the rotating shaft 17 at the bottom.

[0038] Reference Figure 1 and Figure 2 , the bottom of the carrying plate 12 is fixedly connected to a baffle 18 on all sides, and a universal wheel 19 is installed at the bottom of the baffle 18; the front and rear sides of the outer wall of the iron frame 1 are fixedly connected to the rubber strip 20, and the rubber strip 20 is equidistantly installed on the outer wall of the iron frame 1;

[0039] Specifically, a universal wheel 19 is installed at the bottom of the supporting plate 12, so that the entire device is in a movable state, which improves the flexibility of the device. The rubber strips 20 opened on the front and back sides of the outer wall of the iron frame 1 can increase the friction between the hand and the iron frame 1 and improve the grip.

[0040] Working principle: When the steam turbine needs to be repaired, the upper clamping plate 4 is taken out through the slide groove 3, the rotating shaft of the steam turbine is placed in the top groove of the lower clamping plate 6, and then the upper clamping plate 4 is put in through the slide groove 3, and the rotating shaft is limited up and down with the bolt 1 5 and the magnetic block 7, and the bolt 2 9 is turned, and the push plate 10 slides on the outer wall of the slide rod 11, and the push plate 10 is pushed by the bolt 2 9 to limit the rotating shaft of the steam turbine to the left and right. The rotating shaft is fixed to the middle of the iron frame 1 through the upper and lower limits and the left and right limits, which is more convenient for maintenance;

[0041] When the rotor of the steam turbine needs to be cleaned, the barrel cover 202 is removed from the inside of the barrel 201 to form a closed space on all sides. At this time, the high-pressure water pump 203 is turned on. Under the action of the high-pressure water pump 203, water flows through the multi-nozzle pipe 205 and is sprayed onto the surface of the rotor. Due to the action of the high-pressure water flow, the rotor begins to rotate. Since a cleaning brush 206 is installed at the bottom of the barrel 201, the rotor is cleaned by the cleaning brush 206 while rotating. The dripping water will flow out from the left and right sides of the bottom of the barrel 201 due to the action of the water tank 207. After cleaning, the fan 208 can be turned on to dry the water on the surface of the rotor to speed up the subsequent use of the rotor.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steam turbine maintenance auxiliary device, comprising an iron frame (1), characterized in that: The front and rear sides of the interior of the iron frame (1) are provided with a slide groove (3), the top of the slide groove (3) is slidably connected to an upper clamping plate (4), the front and rear sides of the top wall of the upper clamping plate (4) are threadedly connected to a bolt (5), the middle of the left and right sides of the iron frame (1) are fixedly connected to a lower clamping plate (6), the front and rear sides of the top wall of the lower clamping plate (6) are installed with a magnetic block (7), the middle of the left and right sides of the outer wall of the iron frame (1) are fixedly connected to a fixed plate (8), the middle of the left side of the outer wall of the fixed plate (8) is threadedly connected to a bolt ( 9), the other end of the second bolt (9) is rotatably connected to a push plate (10), and a slide rod (11) is passed through the front and rear sides of the outer wall of the push plate (10), one end of the slide rod (11) is fixedly connected to the middle of the inner wall of the fixed plate (8), and the other end of the slide rod (11) is fixedly connected to the middle of the outer wall of the lower clamping plate (6), and the bottom of the iron frame (1) is fixedly connected to a bearing plate (12), and a cleaning mechanism (2) is installed in the middle of the top wall of the bearing plate (12), and the cleaning mechanism (2) is used to clean the turbine rotor.

2. The steam turbine maintenance auxiliary device according to claim 1, characterized in that: The steam turbine components include a barrel (201), the barrel (201) is fixedly connected to the middle of the top wall of the bearing plate (12), the barrel (201) is slidably connected to a barrel cover (202), a high-pressure water pump (203) is fixedly connected to the middle of the rear side of the outer wall of the barrel (201), the input end of the high-pressure water pump (203) is connected to a water inlet pipe (204), the output end of the high-pressure water pump (203) is connected to a multi-nozzle pipe (205), the multi-nozzle pipe (205) is installed in the middle of the rear side of the inner wall of the barrel (201), a cleaning brush (206) is fixedly connected to the bottom of the barrel (201) at equal intervals, a water trough (207) is provided in the middle of the inner bottom wall of the barrel (201), and a fan (208) is fixedly connected to the middle of the left and right sides of the iron frame (1).

3. The steam turbine maintenance auxiliary device according to claim 1, characterized in that: A bearing plate (12) is fixedly connected to the bottom of the iron frame (1), and a groove (13) is formed on the top wall of the bearing plate (12).

4. The steam turbine maintenance auxiliary device according to claim 1, characterized in that: A water outlet hole (14) is provided at the middle and lower portion of the right side of the top wall of the supporting plate (12), and a piston (15) is installed inside the water outlet hole (14).

5. The steam turbine maintenance auxiliary device according to claim 1, characterized in that: Guardrails (16) are installed on the front and rear sides of the top of the supporting plate (12), and a rotating shaft (17) is fixedly connected to the bottom of the guardrail (16).

6. The steam turbine maintenance auxiliary device according to claim 1, characterized in that: Baffles (18) are fixedly connected to the four sides of the bottom of the supporting plate (12), and universal wheels (19) are installed at the bottom of the baffles (18).

7. The steam turbine maintenance auxiliary device according to claim 1, characterized in that: The front and rear sides of the outer wall of the iron frame (1) are both fixedly connected with rubber strips (20), and the rubber strips (20) are equidistantly installed on the outer wall of the iron frame (1).

8. The steam turbine maintenance auxiliary device according to claim 1, characterized in that: Lamp holders (21) are fixedly connected to the middle portions of the left and right sides of the iron frame (1), and a lamp tube (22) is installed on the inner wall of the lamp holder (21).