Water turbine main shaft gulp valve action inspection device

Abstract

The utility model discloses a water turbine large shaft gulp valve action inspection device which comprises a controller, the upper end of the controller is fixedly connected with a valve body through a line pipe, the left end and the right end of the valve body are fixedly connected with valve pipes, the side ends of the valve pipes are fixedly connected with an installation ring, and one end, far away from the valve body, of the installation ring is provided with a sealing ring; and the installation sleeve is connected with the valve pipe in a sleeved mode, the installation sleeve is fixedly connected with the sealing ring and the installation ring through bolts, and a pressure sensor is connected in the installation sleeve in a sleeved mode. The valve pipe, the mounting ring, the sealing ring, the mounting sleeve and the bolt form an assembly structure, the structure is stable and firm, disassembly and assembly are convenient, and device overhaul and maintenance and assembly replacement are facilitated; the mounting sleeve and the turbine shaft form an inserting mechanism, so that the device can be quickly inserted into the large shaft of the water turbine, the mounting is stable, the use is convenient and quick, and the inspection efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply valve inspection, in particular to an operation inspection device for an air supply valve of a main shaft of a turbine. Background Art

[0002] Existing devices for inspecting the operation of hydraulic turbine main shaft air supply valves require inconvenient pre-inspection installation during air supply inspections, making them difficult to operate and inefficient for rapid inspections. Furthermore, the device's valve body mechanism is complex, and the internal sensors are difficult to disassemble and install, hindering inspection and maintenance. A Chinese patent application, numbered "CN201721691823.9," discloses a "hydraulic turbine main shaft air supply valve operation inspection device." The device comprises a bracket, a push rod motor, a thrust gauge, and a control box. The push rod of the push rod motor is provided with a scale, and the bracket is provided with bolt holes for securing the main shaft air supply valve and the push rod motor. The push rod motor is secured to the bracket via bolts. The free end of the push rod of the push rod motor is connected to the thrust gauge, with the thrust gauge's probe oriented in the direction of propulsion by the push rod of the push rod motor. The push rod motor and thrust gauge are each electrically connected to the control box. This utility model is a special inspection device for the three key indicators of the turbine main shaft air supply valve opening force, full opening force, and full opening. It can better assist in the maintenance of the turbine generator and improve the efficiency and quality of the maintenance work. However, the device's docking installation operation is inconvenient, which is not conducive to rapid inspection; the assembly structure is complex, which is not conducive to the disassembly and installation of sensors, and is not conducive to maintenance. Utility Model Content

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a device for inspecting the operation of a turbine main shaft air supply valve. The device comprises an assembly structure composed of a valve pipe, a mounting ring, a sealing ring, a mounting sleeve and bolts. The structure is stable and firm, and is easy to assemble and disassemble, which is beneficial to the inspection and maintenance of the device and the replacement of components. The device can be quickly plugged into the turbine main shaft by forming a plug-in mechanism composed of the mounting sleeve and the turbine shaft. The device is stable to install, quick and easy to use, and the inspection efficiency of the device is improved.

[0004] The present invention also provides a device for inspecting the operation of a main shaft air supply valve of a turbine, comprising: a controller, wherein the upper end of the controller is fixedly connected to a valve body via a wire pipe, the left and right ends of the valve body are fixedly connected to valve pipes, the side ends of the valve pipes are fixedly connected to mounting rings, and a sealing ring is provided at one end of the mounting ring away from the valve body; a mounting sleeve, wherein the mounting sleeve is sleeved on the valve pipe, the mounting sleeve is fixedly connected to the sealing ring and the mounting ring via bolts, and a pressure sensor is sleeved inside the mounting sleeve.

[0005] According to the utility model, a device for inspecting the operation of a hydraulic turbine main shaft air supply valve comprises a mounting plate fixedly connected to the lower end of the controller, facilitating the device's installation and fixation. The mounting plate is provided with mounting holes for convenient and stable installation. The mounting holes are located at the four corners of the mounting plate, facilitating stable installation of the device.

[0006] According to the hydraulic turbine main shaft air supply valve operation inspection device described in the utility model, a display is provided at the front end of the controller to facilitate the display of inspection data and improve the convenience of device use. The lower end of the display abuts the upper end of the mounting plate, making the device structure compact and stable.

[0007] According to the utility model, a device for inspecting the operation of a hydraulic turbine main shaft air supply valve comprises a valve ball sleeved within the valve body, facilitating the connection and disconnection of the air supply valve and facilitating ventilation control. A hole is provided within the valve ball to facilitate stable gas flow. The hole is connected to the valve pipe, facilitating stable gas flow.

[0008] According to the utility model, a hydraulic turbine main shaft air supply valve operation inspection device comprises a valve stem sleeved on the upper end of the valve body, facilitating transmission, facilitating stable control of the valve ball, and improving the convenience of connection and disconnection operations. The lower end of the valve stem is fixedly connected to the upper end of the valve ball, facilitating stable transmission. The upper end of the valve stem is fixedly connected to a handle, facilitating control of the valve ball and improving the convenience of connection and disconnection operations.

[0009] According to the hydraulic turbine main shaft air supply valve operation inspection device of the utility model, the end of the sealing ring close to the valve body abuts against the mounting ring, making the structure compact and stable, which is conducive to stable sealing. The end of the sealing ring away from the valve body abuts against the mounting sleeve, making the structure compact and stable, which is conducive to stable sealing.

[0010] According to the device for inspecting the operation of the main shaft air supply valve of a hydraulic turbine, the end of the pressure sensor close to the valve body abuts against the valve pipe, making the structure compact and stable, which is conducive to stable inspection.

[0011] According to the device for inspecting the operation of the main shaft air supply valve of a water turbine of the present invention, the installation sleeve is sleeved with the turbine shaft, which facilitates the quick insertion of the device.

[0012] Beneficial effects

[0013] 1. Compared with the existing technology, this device for inspecting the operation of the main shaft air supply valve of a hydraulic turbine has an assembly structure composed of a valve pipe, a mounting ring, a sealing ring, a mounting sleeve and bolts. The structure is stable and firm, and it is easy to assemble and disassemble, which is conducive to the inspection and maintenance of the device and the replacement of components.

[0014] 2. Compared with the existing technology, this device for inspecting the operation of the turbine main shaft air supply valve can quickly plug the device into the turbine main shaft through the installation sleeve and the turbine shaft. It has stable installation, convenient and quick use, and the inspection efficiency of the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a structural diagram of a device for inspecting the operation of a main shaft air supply valve of a turbine according to the present invention;

[0017] Figure 2 This is a schematic diagram of the top view of a device for inspecting the operation of a main shaft air supply valve of a turbine according to the present invention;

[0018] Figure 3 This is a schematic diagram of the longitudinal cross-section structure of a device for inspecting the operation of a main shaft air supply valve of a water turbine according to the present invention;

[0019] Figure 4 The utility model is a schematic diagram of the transverse cross-sectional structure of a device for inspecting the operation of an air supply valve on a main shaft of a turbine.

[0020] Legend:

[0021] 1. Controller; 2. Turbine shaft; 3. Sealing ring; 4. Mounting ring; 5. Valve tube; 6. Valve column; 7. Handle; 8. Mounting hole; 9. Valve body; 10. Wire tube; 11. Display; 12. Mounting plate; 13. Mounting sleeve; 14. Pressure sensor; 15. Hole; 16. Valve ball; 17. Bolt. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] Reference Figure 1-4, The utility model embodiment is a turbine main shaft air supply valve operation inspection device, which includes: a controller 1, the lower end of the controller 1 is fixedly connected to a mounting plate 12, the device is installed and fixed, the mounting plate 12 is provided with mounting holes 8, the device is stably installed, the mounting holes 8 are located at the four corners of the mounting plate 12, forming a stable installation layout, the front end of the controller 1 is provided with a display 11, which displays the real-time data detected by the pressure sensor, the lower end of the display 11 abuts against the upper end of the mounting plate 12, forming a compact and stable structure, the upper end of the controller 1 is fixedly connected to the valve body 9 through the wire pipe 10, as the inspection object, the left and right ends of the valve body 9 are fixedly connected with the valve pipe 5, the docking assembly is installed to form a passage for ventilation, the interior of the valve body 9 is sleeved with a valve ball 16, inside the valve body The valve body 9 is connected with a valve post 6 on the upper end, which controls the state of the valve ball and drives the valve ball to rotate to switch the connection and cut-off states. The lower end of the valve post 6 is fixedly connected to the upper end of the valve ball 16 to form a stable transmission structure. The upper end of the valve post 6 is fixedly connected with a handle 7, and the valve ball is adjusted externally to switch the connection and cut-off states. The side end of the valve tube 5 is fixedly connected with a mounting ring 4 for docking and fixing for assembly. The mounting ring 4 is provided with a sealing ring 3 at the end away from the valve body 9 to seal the connection to prevent gas leakage.

[0024] The mounting sleeve 13 is sleeved on the valve tube 5 to form a compact and stable assembly structure. The mounting sleeve 13 is sleeved on the turbine shaft 2 and is plugged into the device for rapid inspection of the air supply valve operation. The mounting sleeve 13 is fixedly connected to the sealing ring 3 and the mounting ring 4 by bolts 17 to form a stable and firm assembly structure. A pressure sensor 14 is sleeved inside the mounting sleeve 13 to detect the internal air pressure for real-time inspection. The end of the pressure sensor 14 close to the valve body 9 is in contact with the valve tube 5 to form a compact and stable pressure sensor installation structure. The end of the sealing ring 3 close to the valve body 9 is in contact with the mounting ring 4 to form a compact and stable sealing structure. The end of the sealing ring 3 away from the valve body 9 is in contact with the mounting sleeve 13 to form a compact and stable sealing structure.

[0025] Working principle: The operation of the turbine main shaft air supply valve is checked by using the turbine main shaft air supply valve operation inspection device. The device is quickly plugged into the main shaft of the turbine through the installation sleeve 13 of the device. A pressure sensor 14 is installed inside the installation sleeve 13. The pressure sensor 14 can detect the internal air pressure of the air supply valve when supplying air. The air pressure data detected by the pressure sensor 14 will be transmitted to the controller 1 through the valve body 9 and the wire pipe 10. The display 11 of the controller 1 will display the real-time air pressure data.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A device for inspecting the operation of a turbine main shaft air supply valve, characterized in that: include: A controller (1), wherein the upper end of the controller (1) is fixedly connected to a valve body (9) via a wire tube (10), the left and right ends of the valve body (9) are fixedly connected to valve pipes (5), the side ends of the valve pipes (5) are fixedly connected to mounting rings (4), and the end of the mounting ring (4) away from the valve body (9) is provided with a sealing ring (3); The mounting sleeve (13) is sleeved with the valve tube (5), the mounting sleeve (13) is fixedly connected with the sealing ring (3) and the mounting ring (4) through bolts (17), and a pressure sensor (14) is sleeved inside the mounting sleeve (13).

2. A device for inspecting the operation of a main shaft air supply valve of a turbine according to claim 1, characterized in that: The lower end of the controller (1) is fixedly connected to a mounting plate (12), and mounting holes (8) are provided in the mounting plate (12). The mounting holes (8) are located at the four corners of the mounting plate (12).

3. The device for inspecting the operation of the main shaft air supply valve of a hydraulic turbine according to claim 1, characterized in that: A display (11) is provided at the front end of the controller (1), and the lower end of the display (11) abuts against the upper end of the mounting plate (12).

4. The device for inspecting the operation of a main shaft air supply valve of a hydraulic turbine according to claim 1, characterized in that: A valve ball (16) is sleeved inside the valve body (9), a hole (15) is provided inside the valve ball (16), and the hole (15) is communicated with the valve pipe (5).

5. The device for inspecting the operation of the main shaft air supply valve of a hydraulic turbine according to claim 1, characterized in that: The upper end of the valve body (9) is sleeved with a valve column (6), the lower end of the valve column (6) is fixedly connected to the upper end of the valve ball (16), and the upper end of the valve column (6) is fixedly connected to a handle (7).

6. The device for inspecting the operation of the main shaft air supply valve of a hydraulic turbine according to claim 1, characterized in that: The end of the sealing ring (3) close to the valve body (9) abuts against the mounting ring (4), and the end of the sealing ring (3) away from the valve body (9) abuts against the mounting sleeve (13).

7. The device for inspecting the operation of a main shaft air supply valve of a hydraulic turbine according to claim 1, characterized in that: One end of the pressure sensor (14) close to the valve body (9) abuts against the valve tube (5).

8. The device for inspecting the operation of a main shaft air supply valve of a hydraulic turbine according to claim 1, characterized in that: The installation sleeve (13) is sleeved with the turbine shaft (2).

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