Mounting rack for adjusting steam valve of steam turbine
The design of the motor-driven rotating rod and buffer assembly solves the loosening problem of the turbine regulating steam valve mounting bracket under high temperature, high pressure and vibration conditions, achieves precise positioning and efficient adjustment, and improves the stability and safety of the equipment.
Patent Information
- Application Number
- CN202510799576.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-09-05
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Under high temperature, high pressure and vibration conditions, the bolts of the existing steam turbine regulating valve mounting bracket are easily loosened due to thermal expansion and contraction, fatigue wear, affecting the precise control of the steam inlet flow and reducing operational stability and efficiency.
The motor drives the rotating rod and buffer assembly, which drives the adjusting rod and fixed plate to move, thereby clamping and fixing the steam turbine. The buffer assembly alleviates thermal expansion and vibration impact, thereby enhancing equipment stability and safety.
It achieves precise positioning and efficient adjustment of the steam turbine, reduces vibration and leakage risks, extends equipment life, and improves unit operation stability and safety.
Smart Images
Figure CN120592704A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of steam turbines, in particular to a mounting frame for a regulating steam valve of a steam turbine. Background Art
[0002] A steam turbine is a rotary power machine that converts steam thermal energy into mechanical energy. The steam pushes the blades, which in turn rotate the rotor to output power. It is commonly used for power generation and industrial drives. During operation, the steam turbine needs to adjust the speed and load by controlling the steam inlet flow. The regulating steam valve is a key control component, and its installation stability and adjustment accuracy are crucial to the safe and efficient operation of the unit. The regulating steam valve mounting bracket can provide stable support and precise positioning for the regulating steam valve, allowing it to remain stable under complex operating conditions such as high temperature, high pressure, and vibration, avoiding control deviations or equipment damage due to displacement and shaking. It also facilitates positioning adjustments during installation and maintenance, ensuring the reliable operation of the turbine control components and the overall safety of the unit.
[0003] The turbine regulating steam valve mounting bracket is a complex and precise supporting structure system. The main body of the bracket is made of high-strength metal. The shape and size are customized according to the turbine layout and regulating steam valve requirements, providing stable support for the regulating steam valve and resisting operating vibration, high temperature and high pressure. The transmission mechanism consists of a cylinder top bracket and a lever positioned by a cylindrical pin. The lever connects the valve stem and the oil motor to achieve precise control of the opening. The disc spring assembly between the oil motor and the bracket can reduce external force interference, damp the swing of the oil cylinder, and ensure the stability and accuracy of the adjustment.
[0004] In the prior art, some steam turbine regulating valve mounting brackets are fixed and adjusted with bolts, etc. However, under long-term complex working conditions of high temperature, high pressure and vibration, the bolts are prone to loosening due to factors such as thermal expansion and contraction, fatigue wear, etc., resulting in inaccurate positioning of the regulating steam valve, affecting its precise control of the steam inlet flow, and thus reducing the operating stability and efficiency of the steam turbine. Therefore, a steam turbine regulating steam valve mounting bracket is proposed to solve the above problems. Summary of the Invention
[0005] In order to make up for the above shortcomings, the present invention provides a turbine regulating steam valve mounting bracket, which aims to improve the problem in the existing technology that under complex working conditions of high temperature, high pressure and vibration for a long time, the bolts are prone to loosening due to factors such as thermal expansion and contraction, fatigue wear, etc., resulting in inaccurate positioning of the regulating steam valve, affecting its precise control of the steam inlet flow, and thus reducing the stability and efficiency of the turbine operation.
[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A steam turbine regulating steam valve mounting frame comprises a housing, wherein the left and right sides of the housing are fixedly connected to motors, the driving end of the motor is fixedly connected to a rotating rod, the right side of the rotating rod is fixedly connected to a rotating disk, the right side of the rotating disk is rotatably connected to two regulating rods, the right sides of the two regulating rods are rotatably connected to a fixed plate 1, the right side of the fixed plate 1 is fixedly connected to a moving block, the right side of the moving block is fixedly connected to a fixed block, the top of the fixed block is fixedly connected to a connecting plate 1, and the top of the housing is fixedly connected to a buffer assembly for buffering the steam turbine; As a further description of the above technical solution: The buffer assembly includes two bottom plates, the bottoms of the two bottom plates are fixedly connected to the top of the shell, the top of the bottom plates is fixedly connected to an isolation plate, the left and right sides of the isolation plates are fixedly connected to telescopic rods, a spring is provided on the outside of the telescopic rod, a pushing block is fixedly connected to the right side of the telescopic rod, the top of the pushing block is rotatably connected to a rotating plate, the top of the rotating plate is rotatably connected to a second fixed plate, and the top of the second fixed plate is fixedly connected to a force-bearing plate; As a further description of the above technical solution: The outer portion of the rotating rod is rotatably connected to the inner portion of the housing, and the far sides of the two moving blocks are in contact with the inner wall of the housing under the movement of the fixed plate; As a further description of the above technical solution: The inner wall of the shell is fixedly connected to two guide plates, and the bottom of the moving block is slidably connected to the inside of the guide plates; As a further description of the above technical solution: The top of the connecting plate 1 is fixedly connected to a movable plate, and the outer portion of the movable plate is slidably connected to the top of the housing; As a further description of the above technical solution: The front side of the movable plate is fixedly connected to a second connecting plate, and the front side of the second connecting plate is fixedly connected to a clamp; As a further description of the above technical solution: The bottoms of the two motors are fixedly connected with a fixing plate three, and adjacent sides of the two fixing plates three are fixedly connected to the left and right sides of the housing; As a further description of the above technical solution: The adjacent sides of the two springs are fixedly connected to the left and right sides of the isolation plate, and the top of the shell is fixedly connected with a placement plate.
[0007] The present invention has the following beneficial effects: 1. In the present invention, the motor rotates the rotating rod, which rotates the rotating disk, which moves the movable block, which moves the fixed block, which moves the two connecting plates, which moves the top movable plates relative to each other, and which brings the clamps closer to each other, thereby achieving clamping and fixing of the steam turbine. In addition, it can accurately position the steam valve, improve the response speed and stability of the regulating component, enhance the safety of equipment operation, reduce vibration and leakage risks, and thus ensure efficient and reliable operation of the unit.
[0008] 2. In the present invention, the force-bearing plate is subjected to force, thereby driving the second fixed plate to move, causing the two bottom rotating plates to rotate, causing the bottom pushing blocks to move, causing the telescopic rod and the spring to be squeezed, causing the force-bearing plate to be buffered, thereby achieving buffering of the turbine installation. In addition, it can alleviate the rigid damage to the steam valve caused by impacts such as thermal expansion and vibration during operation, thereby reducing component wear through flexible support, extending equipment life and improving unit operation stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a three-dimensional schematic diagram of the steam turbine regulating steam valve mounting frame proposed by the present invention; Figure 2 This is a schematic structural diagram of the rotating disk of the steam turbine regulating steam valve mounting frame proposed by the present invention; Figure 3 This is a structural schematic diagram of the fixing block of the steam turbine regulating steam valve mounting frame proposed by the present invention; Figure 4 This is a schematic structural diagram of the force-bearing plate of the steam turbine regulating steam valve mounting frame proposed by the present invention.
[0010] Legend: 1. Housing; 2. Motor; 3. Rotating rod; 4. Rotating disk; 5. Adjusting rod; 6. Fixed plate 1; 7. Moving block; 8. Fixed block; 9. Connecting plate 1; 10. Guide plate; 11. Bottom plate; 12. Isolation plate; 13. Pushing block; 14. Telescopic rod; 15. Spring; 16. Rotating plate; 17. Fixed plate 2; 18. Force plate; 19. Moving plate; 20. Connecting plate 2; 21. Clamp; 22. Placement plate; 23. Fixed plate 3. DETAILED DESCRIPTION
[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.
[0012] Reference Figure 2 and Figure 3 The present invention provides an embodiment: a steam turbine regulating valve mounting frame, comprising a housing 1, which is the foundation of the entire device, thereby protecting the internal limiting structure and making it stable. The left and right sides of the housing 1 are fixedly connected to motors 2, and the driving end of the motor 2 is fixedly connected to a rotating rod 3. Both motors 2 receive signals from the device. Thus, they operate simultaneously, driving the rotating rod 3 to rotate. The right side of the rotating rod 3 is fixedly connected to a rotating disk 4, and the right side of the rotating disk 4 is rotatably connected to two adjusting rods 5. The rotating disk 4 receives the rotational force of the rotating rod 3 and rotates, so that it allows the adjusting rod 5 to rotate and stabilize it. The right sides of the two adjusting rods 5 are both rotatably connected to a fixed plate 6, the right side of the fixed plate 6 is fixedly connected to a moving block 7, the right side of the moving block 7 is fixedly connected to a fixed block 8, and the top of the fixed block 8 is fixedly connected to a connecting plate 9. The fixed plate 6 receives the rotational force of the adjusting plate, thereby moving, so that the two moving blocks 7 move, and the fixed block 8 moves under the movement of the moving block 7, so that the top connecting plate moves. The connecting plate is connected to the fixed block 8 and the top clamping component. The top of the casing 1 is fixedly connected with a buffer component for buffering the steam turbine.
[0013] Reference Figure 2 and Figure 4 The buffer assembly includes two base plates 11, the bottoms of which are fixedly connected to the top of the housing 1. The base plates 11 are the bottom of the buffer assembly and support the entire buffer assembly. An isolation plate 12 is fixedly connected to the top of the base plate 11. Telescopic rods 14 are fixedly connected to the left and right sides of the isolation plate 12. The isolation plate 12 is fixed to the top of the base plate 11 and secures the telescopic rod 14, allowing it to store elastic force. A spring 15 is provided on the outside of the telescopic rod 14, which moves with the telescopic rod 14. A push block 13 is fixedly connected to the right side of the telescopic rod 14, and the top of the push block 13 is rotatably connected to a rotating plate 16. The top of the rotating plate 16 is rotatably connected to a second fixed plate 17. The top of the second fixed plate 17 is fixedly connected to a force-bearing plate 18. The force-bearing plate 18 is subjected to force, causing the second fixed plate 17 to move. This causes the bottom rotating plate 16 to rotate, which in turn causes the bottom push block 13 to move, allowing the telescopic rod 14 and spring 15 to begin storing elastic force.
[0014] Reference Figures 1 to 3The outer portion of the rotating rod 3 is rotatably connected to the inner portion of the housing 1. The rotating rod 3 receives the rotational force of the motor 2, thereby rotating. The far side of the two moving blocks 7 contacts the inner wall of the housing 1 under the movement of the fixed plate 16. The moving block 7 receives the pushing force of the fixed plate 16, thereby moving and moving. The inner wall of the housing 1 is fixedly connected to two guide plates 10. The bottom of the moving block 7 is slidably connected to the inside of the guide plate 10. The guide plate 10 allows the moving block 7 to perform linear motion after receiving the pushing force of the fixed plate 16, thereby stabilizing it. The top of the connecting plate 19 is fixedly connected to the moving plate 19. The outer portion of the moving plate 19 is slidably connected to the top of the housing 1. The front side of the moving plate 19 is fixedly connected to the connecting plate 20. The front side of the connecting plate 20 is fixedly connected to the clamp 21. The moving plate 19 moves with the connecting plate, so that the clamp 21 at the bottom moves. The connecting plate 20 connects the clamp 21 and the moving plate 19, thereby stabilizing it. The bottoms of the two motors 2 are fixedly connected to fixing plates 3 23 , whose adjacent sides are fixedly connected to the left and right sides of the housing 1 . Fixing plates 3 23 ensure stable operation of the motors 2 . The adjacent sides of the two springs 15 are fixedly connected to the left and right sides of the isolation plate 12 . The springs 15 receive the pushing force from the push block 13 , thereby storing elastic force under the action of the telescopic rod 14 . The top of the housing 1 is fixedly connected to a placement plate 22 , which is used to place the steam turbine.
[0015] Working principle: The motor 2 is started and operated, thereby driving the rotating rod 3 to rotate, which makes the rotating disk 4 rotate, which makes the adjusting rod 5 rotate, which makes the fixed plate 6 move, thereby driving the moving block 7 to move, which makes the moving block 7 move under the action of the guide plate 10, which makes the two fixed blocks 8 move, which makes the connecting plate drive the top moving plate 19 to move, so that the two clamps 21 on the moving plate 19 are close to each other, thereby clamping and fixing the steam turbine, thereby positioning the steam turbine, facilitating subsequent adjustment of the steam turbine, thereby achieving clamping and fixing of the steam turbine. In addition, it can accurately position the steam valve, improve the response speed and stability of the regulating component, enhance the safety of equipment operation, reduce vibration and leakage risks, and ensure efficient and reliable operation of the unit.
[0016] After the steam turbine is fixed on the equipment, the force-bearing plate 18 is subjected to force, which causes the bottom fixed plate 17 to move downward, which causes the rotating plate 16 to rotate, which causes the bottom push block 13 to move, which causes the telescopic rod 14 and the spring 15 to be squeezed, so that the two push blocks 13 are buffered, thereby preventing problems from occurring during subsequent adjustments of the steam turbine. The buffer component buffers it, thereby achieving buffering of the steam turbine installation. In addition, it can alleviate the rigid damage to the steam valve caused by impact and vibration, thereby reducing component wear through flexible support, extending equipment life and improving unit operation stability.
[0017] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, 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 regulating valve mounting frame, comprising a housing (1), characterized in that: The left and right sides of the housing (1) are fixedly connected to motors (2), the driving end of the motor (2) is fixedly connected to a rotating rod (3), the right side of the rotating rod (3) is fixedly connected to a rotating disk (4), the right side of the rotating disk (4) is rotatably connected to two adjusting rods (5), the right sides of the two adjusting rods (5) are rotatably connected to a fixed plate 1 (6), the right side of the fixed plate 1 (6) is fixedly connected to a moving block (7), the right side of the moving block (7) is fixedly connected to a fixed block (8), the top of the fixed block (8) is fixedly connected to a connecting plate 1 (9), and the top of the housing (1) is fixedly connected to a buffer component for buffering the steam turbine.
2. The steam turbine regulating valve mounting bracket according to claim 1, characterized in that: The buffer assembly comprises two bottom plates (11), the bottoms of the two bottom plates (11) are fixedly connected to the top of the housing (1), the top of the bottom plates (11) is fixedly connected to an isolation plate (12), the left and right sides of the isolation plate (12) are fixedly connected to telescopic rods (14), a spring (15) is provided on the outside of the telescopic rod (14), the right side of the telescopic rod (14) is fixedly connected to a pushing block (13), the top of the pushing block (13) is rotatably connected to a rotating plate (16), the top of the rotating plate (16) is rotatably connected to a second fixed plate (17), and the top of the second fixed plate (17) is fixedly connected to a force-bearing plate (18).
3. The steam turbine regulating valve mounting bracket according to claim 1, characterized in that: The outer portion of the rotating rod (3) is rotatably connected to the inner portion of the housing (1), and the far sides of the two moving blocks (7) contact the inner wall of the housing (1) under the movement of the fixed plate (6).
4. The steam turbine regulating valve mounting bracket according to claim 1, characterized in that: Two guide plates (10) are fixedly connected to the inner wall of the housing (1), and the bottom of the moving block (7) is slidably connected to the inside of the guide plates (10).
5. The steam turbine regulating valve mounting bracket according to claim 1, characterized in that: The top of the connecting plate 1 (9) is fixedly connected to a movable plate (19), and the outside of the movable plate (19) is slidably connected to the top of the housing (1).
6. The steam turbine regulating valve mounting bracket according to claim 5, characterized in that: The front side of the movable plate (19) is fixedly connected to a second connecting plate (20), and the front side of the second connecting plate (20) is fixedly connected to a clamp (21).
7. The steam turbine regulating valve mounting bracket according to claim 1, characterized in that: The bottoms of the two motors (2) are fixedly connected to a fixing plate three (23), and adjacent sides of the two fixing plates three (23) are fixedly connected to the left and right sides of the housing (1).
8. The steam turbine regulating valve mounting bracket according to claim 2, characterized in that: The adjacent sides of the two springs (15) are fixedly connected to the left and right sides of the isolation plate (12), and a placement plate (22) is fixedly connected to the top of the housing (1).