Device for preventing oil leakage of outgoing line of steam turbine oil tank

Abstract

The utility model discloses a device for preventing oil leakage of a leading-out wire of a steam turbine oil tank, which belongs to the technical field of oil leakage prevention of steam turbine oil tanks, and adopts the technical scheme that the device comprises a body, a threading hole is arranged on a front bearing box of a steam turbine, the body comprises a mounting frame, a baffle is connected onto the mounting frame, and the baffle is provided with a through hole. A limiting channel is arranged on the side, close to the threading hole, of the baffle, and a protection frame is arranged at the end, close to the mounting frame, of the limiting channel. The device can prevent oil from splashing to the threading hole to leak oil, improves the safety protection degree, restrains the wire harness, and reduces the subsequent maintenance difficulty.

Description

Technical Field

[0001] The utility model relates to the technical field of preventing oil leakage of a steam turbine oil tank, in particular to a device for preventing oil leakage of a lead-out line of a steam turbine oil tank. Background Art

[0002] Inside the front bearing box of the turbine, due to the needs of the control system, some measuring lines inevitably need to be introduced into the rotor monitoring point through the holes in the side wall of the bearing box. During normal operation of the unit, the rotor shaft head with a speed of up to 3000r / min will stir the lubricating oil returned to the bearing box, so that the oil droplets, under the action of inertia, continuously hit the inner wall of the bearing box at a circumferential speed of about 50m / s and converge into oil flow. Under the action of long-term, this causes oil leakage at the holes in the side wall of the bearing box. The existing method can only be to passively apply glue around the lead-out line to prevent leakage, but the effect is not very ideal. Under the influence of the working medium temperature and the vibration of the turbine itself during long-term operation, oil leakage will still occur. It is necessary to thoroughly clean the glue and apply glue after shutdown, which is very inconvenient to maintain. Moreover, under the superimposed influence of the high temperature of the main steam, there is a large fire safety hazard. Therefore, a device is needed to prevent oil leakage in the turbine oil tank lead-out line. Utility Model Content

[0003] In response to the problems existing in the prior art, the purpose of the utility model is to provide a device for preventing oil leakage from the turbine oil tank lead-out line, which can prevent oil from splashing into the wire hole and leaking, improve safety protection and constrain the wiring harness, reducing the difficulty of subsequent maintenance.

[0004] The above technical purpose of the present utility model is achieved through the following technical solutions: a device for preventing oil leakage of the turbine oil tank lead-out line, which is installed on the front bearing box of the turbine, and includes a main body, the front bearing box of the turbine is provided with a threading hole, the main body includes a mounting frame, a baffle is rotatably connected to the mounting frame, a limiting path is provided on the side of the baffle close to the threading hole, and a protective frame is provided on one end of the limiting path close to the mounting frame.

[0005] In some embodiments, there is a gap between the limiting path and the installation frame.

[0006] In some embodiments, a blocking rod is threadedly connected to the mounting frame.

[0007] In some embodiments, the body is made of 304 stainless steel.

[0008] In some embodiments, there are three threading holes and two position limiting channels.

[0009] In some embodiments, the surface of the mounting frame to the surface of the baffle is in a descending slope.

[0010] In summary, the present invention has the following beneficial effects:

[0011] The utility model discloses the utility model discloses a wire harness is threaded and the wire harness is threaded, ... BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a side view of the utility model in use;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model in use state;

[0014] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0015] In the figure: 1. Steam turbine front bearing box; 11. Threading hole; 2. Main body; 21. Mounting frame; 22. Baffle; 23. Limiting track; 24. Protective frame; 25. Baffle rod. DETAILED DESCRIPTION

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0018] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0019] See also Figure 1-3 A device for preventing oil leakage from the turbine oil tank lead-out line is installed on the front bearing box 1 of the turbine, including a body 2, a threading hole 11 is opened on the front bearing box 1 of the turbine, and the body 2 includes a mounting frame 21, a baffle 22 is rotatably connected to the mounting frame 21, a limiting channel 23 is provided on the side of the baffle 22 close to the threading hole 11, a protective frame 24 is provided on the end of the limiting channel 23 close to the mounting frame 21, three threading holes 11 are provided, and two limiting channels 23 are provided. During use, the operator flips the baffle 22 so that one side of the limiting path 23 faces upward, and then the operator flips the protective frame 24 so that it is no longer on the same horizontal line with the limiting path 23. The operator then passes the wiring harness through the limiting path 23 so that the wiring harness is guided by the limiting path 23, which can prevent the wiring harness from being misplaced and entangled, and avoid subsequent maintenance spending a lot of time on wiring. The baffle 22 is then flipped over to reset it, and the wiring harness is inserted into the wire threading hole 11, and the installation is completed. At this time, the protective frame 24 can restrain the wiring harness to prevent it from falling, and the baffle 22 can prevent the splashing oil from contacting the wiring harness, preventing oil leakage and causing safety accidents. The operation is simple and convenient.

[0020] In some embodiments, there is a gap between the limiting track 23 and the mounting frame 21. The gap is not only used to place the protective frame 24, but also facilitates the routing of the wire harness on the front bearing box 1 of the steam turbine, ensuring that the wire harness can be attached to the baffle 22 without drooping and arranged neatly.

[0021] In some embodiments, a blocking rod 25 is threadedly connected to the mounting frame 21. The blocking rod 25 is L-shaped. After the operator flips the baffle 22 back to its original position, the blocking rod 25 is rotated so that the blocking rod 25 blocks the baffle 22, thereby preventing the baffle 22 from swinging continuously due to bumps during driving, resulting in failure to block oil splashing and affecting driving safety.

[0022] In some embodiments, the body 2 is made of 304 stainless steel. This alloy composition makes the body 2 have good corrosion resistance, does not contaminate the oil source, ensures that the oil in the turbine oil tank is free of impurities, and protects the quality of the oil source.

[0023] In some embodiments, the surface of the mounting frame 21 is in a descending slope to the surface of the baffle 22. When oil in the turbine oil tank splashes onto the surface of the mounting frame 21, the oil will flow along the slope to the surface of the baffle 22 and finally flow into the turbine oil tank, preventing oil accumulation on the surface of the device.

[0024] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A device for preventing oil leakage from a steam turbine oil tank lead-out line, mounted on a front bearing box (1) of a steam turbine, characterized in that: The invention comprises a body (2), a threading hole (11) is provided on the front bearing box (1) of the steam turbine, the body (2) comprises a mounting frame (21), a baffle (22) is rotatably connected to the mounting frame (21), a limiting path (23) is provided on one side of the baffle (22) close to the threading hole (11), and a protective frame (24) is provided on one end of the limiting path (23) close to the mounting frame (21).

2. The device for preventing oil leakage from a steam turbine oil tank lead wire according to claim 1, characterized in that: There is a gap between the limiting path (23) and the installation frame (21).

3. The device for preventing oil leakage from a steam turbine oil tank lead wire according to claim 1, characterized in that: A blocking rod (25) is connected to the mounting frame (21) via threads.

4. The device for preventing oil leakage from a steam turbine oil tank lead wire according to claim 1, characterized in that: The body (2) is made of 304 stainless steel.

5. The device for preventing oil leakage from a steam turbine oil tank lead wire according to claim 1, characterized in that: The threading holes (11) are provided in three pieces, and the limiting paths (23) are provided in two pieces.

6. The device for preventing oil leakage from a steam turbine oil tank lead wire according to claim 1, characterized in that: The surface of the mounting frame (21) to the surface of the baffle (22) is in a descending slope.

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