Improved device of efficient steam turbine for garbage power generation
By introducing an automated lubricating oil addition system into the steam turbine, the problems of high maintenance costs and uneven lubrication caused by the decline in lubricating oil performance have been solved, and a stable supply of lubricating oil and continuous stable operation of transmission components have been achieved.
Patent Information
- Application Number
- CN202520367965.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-05
AI Technical Summary
As steam turbine transmission components are used for longer periods, the performance of lubricating oil deteriorates due to oxidation and contamination, requiring frequent replacement and manual refilling, which increases maintenance costs. Furthermore, manual refilling can easily lead to insufficient or excessive lubrication.
An improved device comprising an axial-flow steam turbine, a transmission, and a main shaft was designed. By setting up filling components such as an oil tank, an injection pipe, and an adjusting ring, the device enables automated and precise addition of lubricating oil, ensuring that lubricating oil is supplied to key parts of the transmission according to preset amounts and frequencies, thus avoiding insufficient or excessive lubrication caused by manual filling.
It achieves a continuous and stable supply of lubricating oil, reduces maintenance frequency and costs, ensures stable operation of transmission components, and avoids insufficient or excessive lubrication.
Smart Images

Figure CN223894216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steam turbine technology, and in particular to an improved device for a high-efficiency steam turbine for waste-to-energy power generation. Background Technology
[0002] Steam turbines use steam as the working fluid to convert the steam's thermal energy into mechanical work. Within the turbine, steam passes through nozzles and moving blades, completing the conversion from thermal energy to kinetic energy and then to mechanical energy. In practical applications, the equipment typically requires the following technologies:
[0003] 1. Cylinder, which isolates the flow passage of the steam turbine from the atmosphere;
[0004] 2. Steam chamber, providing stable pressure and flow rate for steam;
[0005] 3. Impeller, which transmits the torque generated by the airflow on the blades to the main shaft;
[0006] 4. Couplings, used to connect the turbine rotor to the shafts of other equipment;
[0007] By adjusting the steam inlet valve of the steam turbine, a small amount of steam enters the steam turbine, driving the rotor to rotate slowly. When the steam turbine reaches the rated speed, the steam turbine rotor is connected to the shafts of other equipment, such as the generator rotor, through a coupling to realize the transmission of torque and enable them to work together.
[0008] As steam turbine transmission components are used for longer periods, the performance of the lubricating oil will gradually decline due to oxidation, contamination, and other reasons. Regular lubricating oil replacement is required, and frequent shutdowns for manual lubrication increase maintenance costs. In addition, manual lubrication can easily lead to insufficient or excessive lubrication. Utility Model Content
[0009] To address the shortcomings of existing technologies, this utility model provides an improved device for a high-efficiency steam turbine used in waste-to-energy generation. This device solves the technical problem that, with the increase of usage time, the performance of the lubricating oil in the transmission components of the steam turbine gradually declines due to oxidation, contamination, and other reasons, requiring regular lubricating oil replacement, frequent shutdowns for manual lubrication, increasing maintenance costs, and the technical problem that manual lubrication is prone to insufficient or excessive lubrication.
[0010] To achieve the above objectives, this utility model provides the following technical solution:
[0011] An improved device for a high-efficiency steam turbine for waste-to-energy includes an axial-flow steam turbine, a transmission, and a main shaft. A filling assembly is provided at the top of the transmission. The filling assembly includes a load-bearing plate frame, an oil tank, an injection pipe, and an adjusting ring. A feed inlet is fixedly installed at the top of the oil tank. The injection pipe and the adjusting ring are rotatably connected to each other, and the interiors of the injection pipe and the adjusting ring are interconnected.
[0012] Preferably, a throttling valve disc that connects to the injection pipe is fixedly installed inside the adjusting ring, and a telescopic support arm for connection is fixedly installed on the outside of the adjusting ring. An electric telescopic rod that connects to the load-bearing plate frame is rotatably installed at the top of the telescopic support arm.
[0013] A sealing sleeve for docking is fixedly installed at the top of the oil tank. A positioning component is slidably installed inside the sealing sleeve. The positioning component includes a float rod, a liquid level float, and a scale.
[0014] Preferably, the float rod is aligned with the round hole at the top of the sealing sleeve, and the scale is hollow inside.
[0015] The end of the electric telescopic rod is connected to a motor installed on the outside of the axial flow steam turbine via a pipe;
[0016] A recycling bin is provided at the bottom of the actuator, and a closing valve is provided at the bottom of the actuator.
[0017] Compared with the prior art, the present invention has the following beneficial effects;
[0018] In this invention, lubricating oil is added to the inside of an oil tank for storage. At the same time, the bottom of the oil tank is connected to an injection pipe. By rotating the adjusting ring, the inside of the injection pipe and the adjusting ring is opened. The lubricating oil inside the oil tank is introduced into the inside of the transmission through the injection pipe. According to the preset amount and frequency, lubricating oil is precisely supplied to the key parts of the transmission, avoiding insufficient or excessive lubrication that may occur when manually adding oil, and ensuring continuous and stable lubrication.
[0019] In this invention, lubricating oil is added to the inside of the transmission through an oil tank. As the amount of lubricating oil in the oil tank decreases, the scale floats downwards. The scale drives the float rod to slide downwards inside the sealing sleeve, and at the same time, the liquid level float moves downwards. The surface of the liquid level float is provided with multiple graduations, which makes it easy for staff to check the oil level inside the oil tank in a timely manner. Attached Figure Description
[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0021] Figure 1 This is a structural diagram of the axial-flow steam turbine of this utility model;
[0022] Figure 2 This is a structural diagram of the oil tank of this utility model;
[0023] Figure 3 This is a structural diagram of the injection tube of this utility model;
[0024] Figure 4 This is a structural diagram of the adjusting ring of this utility model.
[0025] In the diagram: 11. Axial-flow steam turbine; 12. Transmission unit; 13. Main shaft; 14. Load-bearing plate frame; 15. Oil tank; 16. Sealing sleeve; 17. Float rod; 18. Liquid level float; 19. Scale; 21. Injection pipe; 22. Adjusting ring; 23. Throttling valve disc; 24. Telescopic arm; 25. Electric telescopic rod. Detailed Implementation
[0026] This application provides an improved device for a high-efficiency steam turbine used in waste-to-energy generation. It effectively solves the problem that, with increasing usage time, the lubricating oil in the steam turbine's transmission components gradually deteriorates due to oxidation and contamination, requiring regular oil changes and frequent shutdowns for manual lubrication, increasing maintenance costs. Furthermore, manual lubrication is prone to insufficient or excessive lubrication. By storing lubricating oil in an oil tank connected to an injection pipe at its bottom, rotating an adjusting ring opens the injection pipe and the adjusting ring, allowing the lubricating oil from the oil tank to be introduced into the transmission unit through the injection pipe. This ensures precise supply of lubricating oil to key parts of the transmission unit according to a preset amount and frequency, avoiding insufficient or excessive lubrication that occurs with manual lubrication and guaranteeing continuous and stable lubrication.
[0027] Example
[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem that, with the increase of service time, the performance of the lubricating oil in the transmission components of a steam turbine gradually declines due to oxidation, contamination, etc., requiring regular lubricating oil replacement, frequent shutdowns for manual lubrication, increasing maintenance costs, and the technical problem that manual lubrication is prone to insufficient or excessive lubrication. The overall idea is as follows:
[0029] To address the problems existing in the prior art, this utility model provides an improved device for a high-efficiency steam turbine for waste-to-energy power generation, including an axial-flow steam turbine 11, a transmission 12, and a main shaft 13. The transmission 12 is equipped with a filling assembly at its top, which includes a load-bearing plate frame 14, an oil tank 15, an injection pipe 21, and an adjusting ring 22. The top of the oil tank 15 is fixedly installed with a feed inlet. The injection pipe 21 and the adjusting ring 22 are rotatably connected to each other, and the interiors of the injection pipe 21 and the adjusting ring 22 are interconnected. Lubricating oil is added to the interior of the oil tank 15 for storage. At the same time, the bottom end of the oil tank 15 is connected to the injection pipe 21. By rotating the adjusting ring 22, the interiors of the injection pipe 21 and the adjusting ring 22 are opened, and the lubricating oil inside the oil tank 15 is introduced into the interior of the transmission 12 through the injection pipe 21. According to a preset amount and frequency, lubricating oil is precisely supplied to the key parts of the transmission 12, avoiding insufficient or excessive lubrication that may occur with manual filling, and ensuring continuous and stable lubrication.
[0030] A recycling box is provided at the bottom of the transmission device 12, and a closing valve is provided at the bottom of the transmission device 12. When new lubricating oil is added into the transmission device 12 through the injection pipe 21 by opening the closing valve at the bottom of the transmission device 12, the old lubricating oil is pushed out from the closing valve at the bottom of the transmission device 12 and collected through the recycling box.
[0031] The regulating ring 22 has a throttle valve 23 fixedly installed inside, which is connected to the injection pipe 21. The regulating ring 22 has a telescopic support arm 24 fixedly installed on the outside for connection. The top of the telescopic support arm 24 is rotatably installed with an electric telescopic rod 25 connected to the load-bearing plate frame 14. By extending and retracting the electric telescopic rod 25, the electric telescopic rod 25 generates a thrust on the top of the telescopic support arm 24. While extending and retracting, it moves to one side. At the same time, the telescopic support arm 24 drives the regulating ring 22 to rotate. By controlling the rotation angle of the regulating ring 22, the flow rate inside the regulating ring 22 is adjusted, and the lubricating oil is accurately controlled.
[0032] The end of the electric telescopic rod 25 is connected to a motor mounted on the outside of the axial flow turbine 11 via a pipe. A sealing sleeve 16 for docking is fixedly installed at the top of the oil tank 15. A positioning component is slidably installed inside the sealing sleeve 16. The positioning component includes a float rod 17, a liquid level float 18, and a scale 19. The float rod 17 docks with the round hole at the top of the sealing sleeve 16. The scale 19 has a hollow design inside. Lubricating oil is added to the inside of the transmission device 12 through the oil tank 15. As the lubricating oil inside the oil tank 15 decreases, the scale 19 floats downward. The scale 19 drives the float rod 17 to slide downward inside the sealing sleeve 16. At the same time, the liquid level float 18 moves downward. The surface of the liquid level float 18 is provided with multiple scales to facilitate the staff to check the oil level inside the oil tank 15 in a timely manner.
[0033] Working principle:
[0034] The first step is to open the main valve and the regulating valve to allow a small amount of steam to enter the turbine, which drives the rotor to rotate slowly. When the turbine speed reaches the rated speed and all parameters are stable, the main shaft 13 is driven to rotate through the transmission 12. The end of the main shaft 13 is connected to the power generation equipment. The uniform rotation of the main shaft 13 enables the generator to output electrical energy.
[0035] The second step involves storing lubricating oil inside the oil tank 15, with the bottom of the oil tank 15 connected to the injection pipe 21. Rotating the adjusting ring 22 opens the injection pipe 21 and the adjusting ring 22, allowing the lubricating oil inside the oil tank 15 to be introduced into the transmission 12 through the injection pipe 21. Lubricating oil is precisely supplied to key parts of the transmission 12 according to a preset amount and frequency, avoiding insufficient or excessive lubrication that may occur with manual addition, ensuring continuous and stable lubrication. As lubricating oil is added to the transmission 12 from the oil tank 15, the amount of lubricating oil inside the oil tank 15 decreases, causing the scale 19 to float downwards. The scale 19 drives the float rod 17 to slide downwards inside the sealing sleeve 16, while the liquid level float 18 moves downwards. The surface of the liquid level float 18 has multiple graduations, allowing staff to easily check the oil level inside the oil tank 15.
[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. An improved device for a high-efficiency steam turbine for waste-to-energy generation, comprising an axial-flow steam turbine (11), a transmission device (12), and a main shaft (13), characterized in that, The top of the transmission device (12) is provided with a filling assembly, which includes a load-bearing plate frame (14), an oil tank (15), an injection pipe (21) and an adjusting ring (22). The top of the oil tank (15) is fixedly installed with a feed port. The injection pipe (21) and the adjusting ring (22) are rotatably connected to each other, and the injection pipe (21) and the adjusting ring (22) are internally connected.
2. The improved device for a high-efficiency steam turbine for waste-to-energy power generation as described in claim 1, characterized in that, The regulating ring (22) is fixedly installed with a throttle valve (23) that is connected to the injection pipe (21). The regulating ring (22) is fixedly installed with a telescopic support arm (24) for connection. The top of the telescopic support arm (24) is rotatably installed with an electric telescopic rod (25) connected to the load-bearing plate frame (14).
3. The improved device for a high-efficiency steam turbine for waste-to-energy power generation as described in claim 1, characterized in that, The top of the oil tank (15) is fixedly installed with a sealing sleeve (16) for docking. A positioning component is slidably installed inside the sealing sleeve (16). The positioning component includes a float rod (17), a liquid level float (18), and a scale (19).
4. The improved device for a high-efficiency steam turbine for waste-to-energy power generation as described in claim 3, characterized in that, The float rod (17) is connected to the round hole at the top of the sealing sleeve (16), and the inside of the scale (19) is hollow.
5. The improved device for a high-efficiency steam turbine for waste-to-energy power generation as described in claim 2, characterized in that, The end of the electric telescopic rod (25) is connected to a motor installed on the outside of the axial flow turbine (11) via a pipe.
6. The improved device for a high-efficiency steam turbine for waste-to-energy power generation as described in claim 1, characterized in that, The bottom end of the actuator (12) is provided with a recycling box and a closing valve.