Accurate flow adjusting device for water turbine of small hydropower station
Through innovative design of leak-proof and positioning devices, the problem of inaccurate regulation caused by oil leakage at the joints of the turbine flow regulation device has been solved, achieving higher regulation accuracy and system stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-10
AI Technical Summary
The existing turbine flow regulation device suffers from oil leakage due to loose threads on the first and second joints during use, leading to inaccurate regulation.
The device employs a leak-proof and positioning mechanism. Through a combination of a limiting plate, a retaining ring, a rubber ring, and a magnetic ring, it prevents oil leakage from the joint. The positioning rod and the insertion hole work together to achieve stable positioning of the limiting plate, ensuring the stability of the joint connection.
This effectively reduced oil leakage at the joints, improved the accuracy of turbine flow regulation, avoided inaccurate regulation, and ensured the stable operation of the power system.
Smart Images
Figure CN223984537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precise flow regulation technology for water turbines, and in particular to a precise flow regulation device for water turbines in small hydropower stations. Background Technology
[0002] The precise flow regulation device for turbines in small hydropower stations is an automatic control system mainly used to control the flow rate of the turbines, ensuring that the turbines maintain stable speed and output under various operating conditions. This device senses changes in the turbine's speed and automatically adjusts the opening of the guide vanes, thereby precisely controlling the water flow entering the turbine and ensuring the stable operation of the power system. The precise flow regulation device for turbines in small hydropower stations is mainly used in scenarios where precise control of the turbine's inlet flow rate is required based on different power generation demands, water flow conditions, and grid load changes to achieve efficient and stable power generation and ensure power quality.
[0003] When operators need to precisely adjust the flow rate of a water turbine, they connect the hydraulic actuator of the regulating device to the water turbine so that they can control the hydraulic actuator to adjust the flow rate of the water turbine. However, existing regulating devices may leak oil during use due to loose threads on the first and second joints, causing the pressure of the hydraulic actuator to drop. This results in inaccurate adjustment of the water turbine's flow rate. Utility Model Content
[0004] The purpose of this invention is to solve the problem of inaccurate adjustment of the flow rate of a turbine in the existing technology, and to propose a precise flow rate adjustment device for a small hydropower station turbine.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: A precise flow regulation device for a small hydropower station turbine, comprising a main unit, a hydraulic unit disposed on one side of the main unit, a liquid delivery pipe fixedly connected to one side of the hydraulic unit, and a leak-proof device disposed on one side of the main unit. The leak-proof device includes a first connector, which is fixedly connected to one side of the main unit. A second connector is fixedly connected to the end of the liquid delivery pipe away from the hydraulic unit, and the second connector is placed on one side of the first connector. A liquid guide pipe is fixedly connected inside the first connector, and a compression block is fixedly connected to the outer surface of the liquid guide pipe. The second connector is fixedly connected to... A first rubber ring is attached to the surface of the extrusion block. A stop block is fixedly connected inside the second connector, and the first rubber ring is placed on the surface of the stop block. An anti-detachment block is fixedly connected to one side of the second connector and is inserted into the inside of the first connector. A groove is formed on the surface of the anti-detachment block. A limit plate is rotatably connected to the outer surface of the first connector and is inserted into the groove on the surface of the anti-detachment block. A retaining ring is fixedly connected inside the second connector. The retaining ring is located on one side of the extrusion block and is inserted into the inside of the liquid guide tube. The retaining ring can cooperate with the second connector to guide the flow of pressurized oil.
[0006] Preferably, a second rubber ring is fixedly connected to one side of the retaining ring. The second rubber ring is placed on the surface of the extrusion block. The second rubber ring can cooperate with the retaining ring and the extrusion block to seal the gap between the retaining ring and the extrusion block.
[0007] Preferably, a positioning device is provided on one side of the anti-detachment block. The positioning device includes a threaded hole, which is opened on one side of the anti-detachment block. A magnetic ring is fixedly connected to the outer surface of the first connector. The limiting plate is movably connected to the surface of the magnetic ring. The magnetic ring is magnetically connected to the surface of the limiting plate. The threaded hole can cooperate with the anti-detachment block to achieve the purpose of adjusting the positioning rod. The magnetic ring can cooperate with the limiting plate to achieve the purpose of temporarily restricting the limiting plate.
[0008] Preferably, a socket is provided on one side of the limiting plate, and the socket is aligned with the threaded hole. The socket can cooperate with the limiting plate to achieve the purpose of storing the positioning rod.
[0009] Preferably, a positioning rod is internally threaded into the threaded hole, and the positioning rod is inserted into the hole. The positioning rod can cooperate with the threaded hole to guide the extension and retraction of the positioning rod.
[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0011] 1. In this utility model, by setting a leak-proof device, when the operator needs to reduce oil leakage from the first and second joints, the second joint is placed on the first joint, the second joint pushes the anti-detachment block, the anti-detachment block is inserted into the first joint, the second joint drives the retaining ring and the first rubber ring to be fitted onto the extrusion block, the first rubber ring is squeezed by the extrusion block, the first rubber ring abuts against the abutment block, the retaining ring drives the second rubber ring to abut against the surface of the extrusion block, the limiting disc is rotated, the limiting disc is inserted into the slot on the surface of the anti-detachment block. By setting a leak-proof device, the oil leakage of the first and second joints can be effectively reduced, avoiding the problem of inaccurate adjustment of the flow rate of the water turbine by the regulating device, thereby improving the accuracy of the regulating device in adjusting the flow rate of the water turbine.
[0012] 2. In this utility model, by setting a positioning device, when the worker needs to position the limiting plate, the limiting plate is rotated. The limiting plate is guided by the first connector and rotates. The limiting plate rotates and inserts into the slot of the anti-detachment block. The limiting plate is released, and the magnetic ring attracts the limiting plate by magnetic force. The worker rotates the positioning rod, and the positioning rod extends and inserts into the insertion hole on the surface of the limiting plate. By setting a positioning device, the limiting plate can be effectively positioned, avoiding the purpose of the limiting plate rotating during the use of the anti-leakage device, thereby reducing the possibility of oil leakage between the first connector and the second connector. Attached Figure Description
[0013] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a precise flow regulation device for a small hydropower station turbine;
[0014] Figure 2 This utility model provides a schematic diagram of the anti-leakage device structure of a small hydropower station turbine flow precision regulation device;
[0015] Figure 3 This utility model proposes a precise flow regulation device for turbines in small hydropower stations. Figure 2 Enlarged structural diagram at point A in the middle;
[0016] Figure 4 This utility model provides a schematic diagram of the positioning device structure for a precise flow regulation device for a small hydropower station turbine.
[0017] Figure 5 This utility model proposes a precise flow regulation device for turbines in small hydropower stations. Figure 4 Enlarged structural diagram at point B.
[0018] Legend:
[0019] 1. Main unit; 2. Hydraulic unit; 3. Leakage prevention device; 31. First connector; 32. Second connector; 33. Liquid guide tube; 34. Squeezing block; 35. First rubber ring; 36. Abutment block; 37. Retaining ring; 38. Second rubber ring; 39. Limiting plate; 310. Anti-detachment block; 4. Positioning device; 41. Positioning rod; 42. Insertion hole; 43. Threaded hole; 44. Magnetic ring; 5. Infusion tube. Detailed Implementation
[0020] Please see Figures 1-5 This utility model provides a technical solution: a small hydropower station turbine flow precision adjustment device, including a main unit 1, a hydraulic device 2 is provided on one side of the main unit 1, a liquid delivery pipe 5 is fixedly connected to one side of the hydraulic device 2, and a leak-proof device 3 is provided on one side of the main unit 1.
[0021] The following section will explain the specific setup and function of its leak-proof device 3 and positioning device 4.
[0022] In this embodiment: the leak-proof device 3 includes a first connector 31, which is fixedly connected to one side of the main unit 1. The end of the infusion pipe 5 away from the hydraulic unit 2 is fixedly connected to a second connector 32, which is placed on one side of the first connector 31. A guide pipe 33 is fixedly connected inside the first connector 31, and a squeezing block 34 is fixedly connected to the outer surface of the guide pipe 33. A first rubber ring 35 is fixedly connected inside the second connector 32 and is fitted onto the surface of the squeezing block 34. A stop block 36 is fixedly connected inside the second connector 32, and the first rubber ring 35 is placed on the surface of the stop block 36. An anti-detachment block 310 is fixedly connected to one side of the second connector 32 and is inserted into the inner side of the first connector 31. A slot is provided on the surface of the anti-detachment block 310. A limit plate 39 is rotatably connected to the outer surface of the first connector 31 and is inserted into the slot on the surface of the anti-detachment block 310.
[0023] Specifically, a retaining ring 37 is fixedly connected inside the second connector 32. The retaining ring 37 is located on one side of the extrusion block 34 and is inserted inside the liquid guide tube 33. The retaining ring 37 can cooperate with the second connector 32 to guide the flow of pressurized oil.
[0024] Specifically, a second rubber ring 38 is fixedly connected to one side of the retaining ring 37, and the second rubber ring 38 is placed on the surface of the extrusion block 34.
[0025] In this embodiment, the second rubber ring 38 can cooperate with the retaining ring 37 and the extrusion block 34 to achieve the purpose of sealing the gap between the retaining ring 37 and the extrusion block 34.
[0026] In this embodiment: a positioning device 4 is provided on one side of the anti-detachment block 310. The positioning device 4 includes a threaded hole 43, which is opened on one side of the anti-detachment block 310. A magnetic ring 44 is fixedly connected to the outer surface of the first connector 31. The limiting plate 39 is movably connected to the surface of the magnetic ring 44, and the magnetic ring 44 is magnetically connected to the surface of the limiting plate 39.
[0027] Specifically, the threaded hole 43 can be used in conjunction with the anti-detachment block 310 to adjust the positioning rod 41, and the magnetic ring 44 can be used in conjunction with the limiting plate 39 to temporarily restrict the limiting plate 39.
[0028] In this embodiment, the insertion hole 42 can cooperate with the limiting plate 39 to achieve the purpose of storing the positioning rod 41.
[0029] Specifically, the threaded hole 43 has a positioning rod 41 inside the threaded connection, and the positioning rod 41 is inserted into the hole 42.
[0030] In this embodiment, the positioning rod 41 can cooperate with the threaded hole 43 to guide the positioning rod 41 to extend and retract.
[0031] Working principle: By setting up the leak-proof device 3, when the operator needs to reduce oil leakage from the first connector 31 and the second connector 32, the second connector 32 is placed on the first connector 31. The second connector 32 pushes the anti-detachment block 310, which inserts into the first connector 31. The second connector 32 then causes the retaining ring 37 and the first rubber ring 35 to be fitted onto the extrusion block 34. The first rubber ring 35 is squeezed by the extrusion block 34 and abuts against the stop block 36. The retaining ring 37 causes the second rubber ring 38 to abut against the surface of the extrusion block 34. The limiting disc 39 is rotated and inserted into the groove on the surface of the anti-detachment block 310. By setting up the leak-proof device 3, oil leakage from the first connector 31 and the second connector 32 can be effectively reduced, preventing the regulating device from interfering with the adjustment of the turbine. The problem of inaccurate flow rate adjustment was addressed by the positioning device 4, which improves the accuracy of the turbine flow rate adjustment. Furthermore, by setting up the positioning device 4, when the operator needs to position the limiting plate 39, the limiting plate 39 is rotated. Guided by the first connector 31, the limiting plate 39 rotates and inserts into the slot of the anti-detachment block 310. When the limiting plate 39 is released, the magnetic ring 44 magnetically holds it in place. The operator then rotates the positioning rod 41, which extends and inserts into the insertion hole 42 on the surface of the limiting plate 39. By setting up the positioning device 4, the limiting plate 39 can be effectively positioned, preventing the limiting plate 39 from rotating during use of the leak-proof device 3, thereby reducing the possibility of oil leakage between the first connector 31 and the second connector 32.
Claims
1. A precise flow regulation device for a small hydropower station turbine, comprising a main unit (1), a hydraulic actuator (2) disposed on one side of the main unit (1), and a liquid delivery pipe (5) fixedly connected to one side of the hydraulic actuator (2), characterized in that: The side of the host (1) is provided with a leakage-proof device (3), the leakage-proof device (3) includes a first joint (31), the first joint (31) is fixedly connected with the side of the host (1), the infusion tube (5) is fixedly connected with a second joint (32) away from the hydraulic device (2), the second joint (32) is placed on the side of the first joint (31), the inside of the first joint (31) is fixedly connected with a liquid guide pipe (33), the outer surface of the liquid guide pipe (33) is fixedly connected with a pressing block (34), the inside of the second joint (32) is fixedly connected with a first rubber ring (35), the first rubber ring (35) is sleeved on the surface of the pressing block (34), the inside of the second joint (32) is fixedly connected with a resisting block (36), the first rubber ring (35) is placed on the surface of the resisting block (36), one side of the second joint (32) is fixedly connected with an anti-dropping block (310), the anti-dropping block (310) is inserted with the inside of the first joint (31), the surface of the anti-dropping block (310) is provided with a clamping groove, the outer surface of the first joint (31) is rotatably connected with a limiting disc (39), the limiting disc (39) is inserted with the clamping groove on the surface of the anti-dropping block (310).
2. The small hydropower station water turbine flow precision regulating device according to claim 1, characterized in that: The inside of the second joint (32) is fixedly connected with a check ring (37), the check ring (37) is located on the side of the pressing block (34), and the check ring (37) is inserted in the inside of the liquid guide pipe (33).
3. The flow precision regulating device for a small hydropower station water turbine according to claim 2, characterized in that: One side of the check ring (37) is fixedly connected with a second rubber ring (38), and the second rubber ring (38) is placed on the surface of the pressing block (34).
4. The small hydropower station water turbine flow precision regulating device according to claim 1, characterized in that: One side of the anti-dropping block (310) is provided with a positioning device (4), the positioning device (4) includes a threaded hole (43), the threaded hole (43) is arranged on the side of the anti-dropping block (310), the outer surface of the first joint (31) is fixedly connected with a magnetic attraction ring (44), the limiting disc (39) is movably connected with the surface of the magnetic attraction ring (44), and the magnetic attraction ring (44) is magnetically connected with the surface of the limiting disc (39).
5. The flow precision regulating device for the water turbine of a small hydropower station according to claim 1, characterized in that: One side of the limiting disc (39) is provided with a bushing (42), and the bushing (42) is aligned with the threaded hole (43).
6. The small hydropower station water turbine flow precision regulating device according to claim 4, characterized in that: The inside of the threaded hole (43) is screwedly connected with a positioning rod (41), and the positioning rod (41) is inserted into the inside of the bushing (42).