Electromagnetic-driven locking mechanism for water inlet butterfly valve of water turbine

Abstract

The utility model relates to the technical field of water inlet butterfly valve maintenance locking mechanisms, in particular to an electromagnetically-driven water turbine water inlet butterfly valve locking mechanism which comprises a butterfly valve body. The butterfly valve further comprises an overhauling sealing locking rod, an overhauling sealing pair position indicating rod, a locking pin and a traction electromagnet, a butterfly valve overhauling lock is arranged at the upper end of the butterfly valve body, a reinforcing assembly is arranged on the surface of the upper end of the butterfly valve overhauling lock, and an overhauling assembly is connected to the surface of the reinforcing assembly. According to the utility model, the traction electromagnet drives the maintenance sealing locking rod, and the design of the position indicating rod and the locking pin is combined, so that the butterfly valve is automatically controlled, the locking pin firmly locks the piston ring, the reliability problem of a maintenance sealing pair is solved, and the requirement of emptying a pipeline medium for maintenance is avoided; and the reliability of locking signals and the stability of overhauling a sealing pair are improved, so that a user can use at ease.

Description

Technical Field

[0001] This utility model relates to the technical field of inlet butterfly valve maintenance and locking mechanism, and in particular to an electromagnetically driven inlet butterfly valve locking mechanism for a water turbine. Background Technology

[0002] The turbine inlet butterfly valve is mainly used to control the process of water entering the turbine. It is a key piece of equipment that regulates the amount of water entering the turbine by opening or closing the valve, thereby controlling the turbine's speed and power generation efficiency. In hydropower stations, the inlet butterfly valve plays an important role in protecting the turbine from abnormal water flow impacts and ensuring the safe operation of the system.

[0003] Currently, in the domestic and international hydropower industry, the maintenance sealing locking mechanism of the turbine inlet butterfly valve is based on manual rotation of the locking screw to engage or disengage the maintenance sealing pair. This operation method is not only cumbersome but also inconvenient for automated control. The locking signal output is unreliable, which makes it difficult to put the maintenance sealing pair into use during equipment maintenance.

[0004] Therefore, the commonly used manual rotation of the screw rod is employed for the maintenance sealing and locking mechanism of the turbine inlet butterfly valve. This method is not only complex and difficult to automate, but also suffers from unreliable locking signal output. An electromagnetically driven locking mechanism for the turbine inlet butterfly valve can be designed. By driving the maintenance sealing locking rod with a traction electromagnet, combined with a position indicator rod and locking pin, automated control of the butterfly valve can be achieved. The locking pin securely locks the piston ring, solving the reliability problem of the maintenance sealing pair, avoiding the need to vent the pipeline medium during maintenance, improving the reliability of the locking signal and the stability of the maintenance sealing pair, allowing users to use the valve with confidence, thus resolving the aforementioned problems. Utility Model Content

[0005] To overcome the common problem that the sealing and locking mechanism of the inlet butterfly valve of a water turbine is usually operated by manually rotating the screw, this method is not only complicated and difficult to automate, but also has the problem of unreliable locking signal output.

[0006] The technical solution of this utility model is as follows: an electromagnetically driven inlet butterfly valve locking mechanism for a water turbine, comprising a butterfly valve body; further comprising a maintenance sealing locking rod, a maintenance sealing pair position indicator rod, a locking pin, and a traction electromagnet. A butterfly valve maintenance lock is provided at the upper end of the butterfly valve body, and a reinforcing component is provided on the upper surface of the butterfly valve maintenance lock. A maintenance component is connected to the surface of the reinforcing component. The maintenance component includes a maintenance sealing locking rod, a maintenance sealing pair position indicator rod, a locking pin, and a traction electromagnet. One end of the maintenance sealing locking rod is connected to the surface of the reinforcing component, and a traction electromagnet is installed at the other end of the maintenance sealing locking rod. A locking pin is installed on the surface of the maintenance sealing locking rod, and a maintenance sealing pair position indicator rod is installed in the mounting hole of the reinforcing component.

[0007] Preferably, this mechanism replaces the current manual screw rotation method with a traction electromagnet-driven maintenance seal locking rod. Combined with the maintenance seal position indicator rod and locking pin, it achieves automated control of the butterfly valve. The locking pin also firmly locks the piston ring, completely solving the problem of users hesitant to use the maintenance seal during equipment maintenance. This eliminates the need for users to release the pipeline medium before maintenance due to concerns about the seal's reliability. It also addresses the issue of unreliable locking signal output, which leads to instability in the maintenance seal during equipment maintenance, making it difficult to put into use.

[0008] Preferably, the reinforcement assembly includes reinforcement block one, reinforcement block two, reinforcement cylinder one and reinforcement cylinder two, with reinforcement block one installed at the upper end of the butterfly valve maintenance lock, and reinforcement block two connected to the upper end of reinforcement block one.

[0009] Preferably, the upper surface of the reinforcing block one is connected to the reinforcing cylinder two, and the left surface of the reinforcing block two is installed with the reinforcing cylinder one.

[0010] Preferably, the inspection seal position indicator rod is installed inside the reinforcement cylinder and is fixed by a nut.

[0011] Preferably, the maintenance sealing locking rod is installed in the mounting hole of the second reinforcing cylinder, and the maintenance sealing locking rod is connected to the second reinforcing cylinder through the reinforcing member.

[0012] Preferably, the surface of the locking pin has an insertion locking hole and an unlocking locking hole.

[0013] Preferably, a water inlet pipe is connected to the left side surface of the butterfly valve body, and a water inlet pipe is connected to the right side surface of the butterfly valve body.

[0014] The beneficial effects of this utility model are:

[0015] 1. This mechanism replaces the current manual screw rotation method with a traction electromagnet-driven maintenance seal locking rod. Combined with the maintenance seal position indicator rod and locking pin, it achieves automated control of the butterfly valve. The locking pin also firmly locks the piston ring, completely solving the problem of users hesitant to use the maintenance seal during equipment maintenance. This eliminates the need for users to release the pipeline medium before maintenance due to concerns about the seal's reliability. It also addresses the issue of unreliable locking signal output, which leads to instability in the maintenance seal during equipment maintenance, making it difficult to put into use. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a locking mechanism for an electromagnetically driven water turbine inlet butterfly valve according to this utility model.

[0017] Figure 2 The diagram shows a three-dimensional structural schematic of the butterfly valve body of an electromagnetically driven water turbine inlet butterfly valve locking mechanism according to this utility model.

[0018] Figure 3 The diagram shows a three-dimensional structural schematic of the reinforcing cylinder of the locking mechanism for the inlet butterfly valve of an electromagnetically driven water turbine according to this utility model.

[0019] Figure 4 The diagram shows a three-dimensional structural schematic of the reinforcing block of the locking mechanism for the inlet butterfly valve of an electromagnetically driven water turbine according to this utility model.

[0020] Figure 5 The diagram shown is a cross-sectional view of a locking mechanism for an electromagnetically driven inlet butterfly valve of a water turbine according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Butterfly valve body; 2. Butterfly valve maintenance lock; 3. Inlet pipe one; 4. Reinforcing block one; 5. Reinforcing block two; 6. Reinforcing cylinder one; 7. Reinforcing cylinder two; 8. Maintenance sealing locking rod; 9. Maintenance sealing pair position indicator rod; 10. Locking pin; 11. Traction electromagnet; 12. Engaging locking hole; 13. Unlocking locking hole; 14. Inlet pipe two. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment: an electromagnetically driven inlet butterfly valve locking mechanism for a water turbine, including a butterfly valve body 1; it also includes a maintenance sealing locking rod 8, a maintenance sealing pair position indicator rod 9, a locking pin 10, and a traction electromagnet 11. A butterfly valve maintenance lock 2 is provided at the upper end of the butterfly valve body 1. A reinforcing component is provided on the upper surface of the butterfly valve maintenance lock 2. A maintenance component is connected to the surface of the reinforcing component. The maintenance component includes the maintenance sealing locking rod 8, the maintenance sealing pair position indicator rod 9, the locking pin 10, and the traction electromagnet 11. One end of the maintenance sealing locking rod 8 is connected to the surface of the reinforcing component. The other end of the maintenance sealing locking rod 8 is equipped with a traction electromagnet 11, and a locking pin 10 is installed on the surface of the maintenance sealing locking rod 8. A maintenance sealing pair position indicator rod 9 is installed in the mounting hole of the reinforcement component. The maintenance sealing locking rod 8 is driven by the traction electromagnet 11. With the addition of the maintenance sealing pair position indicator rod 9 and the locking pin 10, the butterfly valve is automatically controlled. The locking pin 10 can also firmly lock the piston ring, which completely solves the problem of not daring to put the maintenance sealing pair into use during equipment maintenance. This eliminates the current situation where users do not have to worry about the unreliability of the maintenance sealing pair and have to empty the pipeline medium before maintenance.

[0024] Please see Figures 1-4 In this embodiment, the reinforcement assembly includes a first reinforcement block 4, a second reinforcement block 5, a first reinforcement cylinder 6, and a second reinforcement cylinder 7. The first reinforcement block 4 is installed on the upper end of the butterfly valve maintenance lock 2, and the second reinforcement block 5 is connected to the upper end of the first reinforcement block 4. The first reinforcement block 4 is installed on the upper end of the butterfly valve maintenance lock 2 to enhance structural stability. The second reinforcement block 5 is located above and connected to the first reinforcement block 4 to further strengthen the overall structural stability. The second reinforcement cylinder 7 is connected to the upper surface of the first reinforcement block 4, and the first reinforcement cylinder 6 is installed on the left surface of the second reinforcement block 5 for reinforcement. The inside of cylinder 6 is used to install the maintenance sealing pair position indicator rod 9, which is fixed by a nut and connected to the upper surface of the reinforcing block 4. It has a mounting hole inside for installing the maintenance sealing locking rod 8, and the reinforcement parts ensure a firm connection between it and the reinforcing cylinder 7. The maintenance sealing pair position indicator rod 9 is installed inside the reinforcing cylinder 6 and fixed by a nut. The maintenance sealing pair position indicator rod 9 is set to indicate the position status of the maintenance sealing pair, provide intuitive status information, and ensure the safety and accuracy of the maintenance process.

[0025] Please see Figures 1-4In this embodiment, the maintenance sealing locking rod 8 is installed in the mounting hole of the reinforcing cylinder 2 7. The maintenance sealing locking rod 8 is connected to the reinforcing cylinder 2 7 through a reinforcing member. The maintenance sealing locking rod 8 is a component driven by a traction electromagnet 11 and is used for sealing and locking during equipment maintenance. Compared with the manual method, this method is more precise and reliable. The surface of the locking pin 10 has an insertion locking hole 12 and an unlocking locking hole 13. The insertion locking hole 12 is used to realize the locking function of the maintenance sealing pair. When it is necessary to lock the maintenance sealing pair, it is locked by... Engaging the locking hole 12 ensures that the maintenance sealing pair is in a safe locked state. Unlocking the locking hole 13 unlocks the maintenance sealing pair. When maintenance work is completed or adjustments are needed, the unlocking locking hole 13 is used to unlock the maintenance sealing pair, allowing it to change from a locked state to an operable state. The left side surface of the butterfly valve body 1 is connected to the inlet pipe 3, and the right side surface of the butterfly valve body 1 is connected to the inlet pipe 14. The inlet pipe 3 and the inlet pipe 14 are connected to the left and right sides of the butterfly valve body 1, respectively, forming part of the fluid channel.

[0026] During operation, the maintenance seal locking rod 8 is driven by the traction electromagnet 11. Combined with the maintenance seal pair position indicator rod 9 and locking pin 10, automated control of the butterfly valve is achieved. The locking pin 10 also securely locks the piston rings, completely solving the problem of the maintenance seal pair being unusable during equipment maintenance. This eliminates the need for users to release pipeline media before maintenance due to concerns about the reliability of the maintenance seal pair. Reinforcing block 1 4 is installed on the upper end of the butterfly valve maintenance lock 2, enhancing structural stability. Reinforcing block 2 5 is located above and connected to reinforcing block 1 4, further strengthening the overall structural stability. The reinforcing cylinder 1 6 is used to install the maintenance seal pair position indicator rod 9, which is fixed with a nut and connected to the upper surface of reinforcing block 1 4. It has mounting holes for installing the maintenance seal locking rod 8, and the reinforcement ensures a secure connection between it and the reinforcing cylinder 2 7. Next, the maintenance sealing pair position indicator rod 9 is set to indicate the position status of the maintenance sealing pair, providing intuitive status information and ensuring the safety and accuracy of the maintenance process. The maintenance sealing locking rod 8 is a component driven by the traction electromagnet 11, used for sealing and locking during equipment maintenance. Compared with the manual method, this method is more accurate and reliable. The locking hole 12 is used to realize the locking function of the maintenance sealing pair. When it is necessary to lock the maintenance sealing pair, the operation of cooperating with the locking hole 12 ensures that the maintenance sealing pair is in a safe locked state. The unlocking locking hole 13 is used to unlock the maintenance sealing pair. When the maintenance work is completed or adjustment is required, the unlocking locking hole 13 is used to unlock the maintenance sealing pair, so that the maintenance sealing pair can be changed from the locked state to the operable state. The first water inlet pipe 3 and the second water inlet pipe 14 are respectively connected to the left and right surfaces of the butterfly valve body 1, forming part of the fluid channel.

[0027] Through the above steps, the maintenance seal locking rod 8 is driven by the traction electromagnet 11. With the addition of the maintenance seal pair position indicator rod 9 and the locking pin 10, the butterfly valve is automatically controlled. The locking pin 10 can also firmly lock the piston ring, which completely solves the problem of the maintenance seal pair being afraid to be put into use during equipment maintenance. This eliminates the current situation where users do not have to worry about the unreliability of the maintenance seal pair and have to empty the pipeline medium before maintenance. This solves the problem that the maintenance seal locking mechanism of the common turbine inlet butterfly valve is generally operated by manually rotating the screw. This method is not only complicated and difficult to automate, but also has the problem of unreliable locking signal output.

Claims

1. A locking mechanism for an electromagnetically driven inlet butterfly valve of a water turbine, comprising a butterfly valve body (1); characterized in that: It also includes a maintenance sealing locking rod (8), a maintenance sealing pair position indicator rod (9), a locking pin (10), and a traction electromagnet (11). A butterfly valve maintenance lock (2) is provided at the upper end of the butterfly valve body (1). A reinforcement component is provided on the upper surface of the butterfly valve maintenance lock (2). A maintenance component is connected to the surface of the reinforcement component. The maintenance component includes a maintenance sealing locking rod (8), a maintenance sealing pair position indicator rod (9), a locking pin (10), and a traction electromagnet (11). One end of the maintenance sealing locking rod (8) is connected to the surface of the reinforcement component. The other end of the maintenance sealing locking rod (8) is equipped with a traction electromagnet (11). A locking pin (10) is installed on the surface of the maintenance sealing locking rod (8). The maintenance sealing pair position indicator rod (9) is installed in the mounting hole of the reinforcement component.

2. The electromagnetically driven inlet butterfly valve locking mechanism for a water turbine according to claim 1, characterized in that: The reinforcement components include reinforcement block one (4), reinforcement block two (5), reinforcement cylinder one (6) and reinforcement cylinder two (7). Reinforcement block one (4) is installed on the upper end of the butterfly valve maintenance lock (2), and reinforcement block two (5) is connected to the upper end of reinforcement block one (4).

3. The electromagnetically driven inlet butterfly valve locking mechanism for a water turbine according to claim 2, characterized in that: The upper surface of the reinforcing block 1 (4) is connected to the reinforcing cylinder 2 (7), and the left surface of the reinforcing block 2 (5) is equipped with the reinforcing cylinder 1 (6).

4. The electromagnetically driven inlet butterfly valve locking mechanism for a water turbine according to claim 1, characterized in that: The inspection seal position indicator rod (9) is installed inside the reinforcement cylinder (6) and is fixed by a nut.

5. The locking mechanism for an electromagnetically driven inlet butterfly valve of a water turbine according to claim 1, characterized in that: The inspection and sealing locking rod (8) is installed in the mounting hole of the reinforcing cylinder two (7), and the inspection and sealing locking rod (8) is connected to the reinforcing cylinder two (7) through the reinforcing parts.

6. The electromagnetically driven inlet butterfly valve locking mechanism for a water turbine according to claim 1, characterized in that: The surface of the locking pin (10) is provided with an insertion locking hole (12) and an unlocking locking hole (13).

7. The electromagnetically driven inlet butterfly valve locking mechanism for a water turbine according to claim 1, characterized in that: The left side surface of the butterfly valve body (1) is connected to the first water inlet pipe (3), and the right side surface of the butterfly valve body (1) is connected to the second water inlet pipe (14).

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