Integrated high-level oil tank and lubricating oil supply system
Through the design of an integrated high-position fuel tank, the breathing cap is used to achieve internal and external atmosphere communication, avoid pressure holding, and integrate the three-valve group function, which solves the problem of increasing the fault point and design difficulty of high-position fuel tanks in the existing technology, and realizes lubricating oil emergency oil supply and reduce fault points.
Patent Information
- Application Number
- CN202420129252.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-18
AI Technical Summary
The three-valve group control method of medium and high-level fuel tanks in existing turbine equipment units increases the fault points and design difficulty of the oil supply pipeline, affecting the safety of the unit.
Design an integrated high-level oil tank, including the high-level oil tank body, the oil inlet and return pipeline connected to it, to achieve internal and external atmosphere through the breathing cap, avoid holding pressure, and integrate the functions of the three-valve group into the new In the structure, the failure points and design complexity are reduced.
It realizes emergency oil supply for lubricant in an accident state, reducing the fault point and design difficulty. At the same time, it facilitates observation of the lubricant status through the oil return window and prevents rain, snow and water from entering.
Smart Images
Figure CN222142694U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a high-position oil tank, in particular to an integrated high-position oil tank and a lubricating oil supply system. Background Art
[0002] With the continuous development of industrial technology, turbine equipment units have gradually become the core equipment in modern industrial production. The core component of turbine equipment units is the rotating shaft. In order to ensure the reliability of the rotating shaft, the existing turbine equipment units mostly use sliding bearings to cooperate with the rotating shaft. Sliding bearing technology is relatively mature and has a wide range of applications, but sliding bearings need to be lubricated during use. At present, the lubrication method of this type of bearing is mostly to set up a lubricating oil station in the unit for forced oil lubrication. The lubricating oil will be transported from the oil tank of the lubricating oil station through the oil supply pipeline to the sliding bearings that need to be lubricated in the unit, and then continuously lubricated to ensure the normal operation of the unit. In actual use, in order to ensure that the unit can be safely shut down under accident conditions, a high-level oil tank is configured in the unit lubrication system as an emergency unit bearing lubrication device under accident conditions. The reliability of the high-level oil tank will directly affect the safety of the turbine equipment unit. Currently, a three-valve group used to control the normal oil storage and oil circulation of the high-level oil tank and the normal oil supply of the high-level oil tank under accident conditions is set in the oil supply pipeline. The configuration of the three-valve group will increase the equipment connection points on the oil supply pipeline, which will increase the failure points and affect the safety of the unit. In addition, the installation position of the three-valve group in the oil supply pipeline needs to be planned in advance during the design, which also increases the design difficulty. Utility Model Content
[0003] The utility model aims to solve the technical problems that the use of a three-valve group to control the operation of a high-level oil tank easily leads to an increase in the number of failure points in the oil supply pipeline and an increased difficulty in pipeline design, and provides an integrated high-level oil tank and lubricating oil supply system.
[0004] In order to solve the technical problems existing in the above-mentioned prior art, the utility model provides the following technical solutions:
[0005] An integrated high-position oil tank is special in that it comprises a high-position oil tank body and a pipeline connected to the high-position oil tank body;
[0006] The bottom of the high-position oil tank body is provided with an oil inlet hole, and the top is provided with an oil return hole;
[0007] The pipeline includes an oil inlet pipeline and an oil return pipeline, one end of the oil inlet pipeline is connected to the oil inlet hole, one end of the oil return pipeline is connected to the oil return hole, the other end of the oil inlet pipeline is used to be connected to the auxiliary oil supply pipeline of the lubricating oil station, and the other end of the oil return pipeline is used to be connected to the oil tank of the lubricating oil station; a breathing cap is connected to the oil return pipeline for connecting the inside of the high-level oil tank body with the external atmosphere, and the height of the breathing port on the breathing cap is higher than the top height of the high-level oil tank body.
[0008] Furthermore, an oil inlet connecting flange for connecting to an oil inlet pipeline is provided on the oil inlet hole, and a docking flange matching the oil inlet connecting flange is provided at one end of the oil inlet pipeline.
[0009] Furthermore, the oil return pipeline includes a first L-shaped elbow, a second L-shaped elbow and a first straight pipe connected in sequence, the inlet of the first L-shaped elbow is connected to the oil return hole, the outlet of the first L-shaped elbow is connected to the inlet of the second L-shaped elbow through a flange, and a throttling orifice is provided at the flange connection, the breathing cap is provided on the second L-shaped elbow, the inlet of the first straight pipe is connected to the outlet of the second L-shaped elbow through a flange, and the outlet of the first straight pipe is used to be connected to the oil tank of the lubricating oil station.
[0010] Furthermore, the breathing cap includes an L-shaped tube body and a rain cap, one end of the L-shaped tube body is connected to the side wall of the second L-shaped elbow, the breathing port is located at the other end of the L-shaped tube body, and the rain cap is arranged on the breathing port.
[0011] Furthermore, an oil return window is provided on the first straight pipe for observing the oil return condition of the lubricating oil.
[0012] Furthermore, the oil inlet hole is arranged at the bottom of one end of the high-position oil tank body, and the oil return hole is arranged at the top of the other end of the high-position oil tank body.
[0013] Furthermore, a mounting bracket is provided at the bottom of the high-position oil tank body, and two mounting brackets are provided at intervals along the length direction of the high-position oil tank body.
[0014] Furthermore, the mounting bracket includes a supporting plate and a fixing plate installed at the bottom of the supporting plate. The supporting plate is provided with a mounting groove adapted to the shape of the bottom of the high-position oil tank body. The high-position oil tank body is located in the mounting groove, and the fixing plate is fixed by anchor bolts.
[0015] The utility model also provides a lubricating oil supply system, including a lubricating oil station, on which a main oil supply pipeline and an auxiliary oil supply pipeline connected to the main oil supply pipeline are provided. The utility model is special in that: it also includes the above-mentioned integrated high-position oil tank; the main oil supply pipeline is directly connected to the lubricating oil pipeline of the unit sliding bearing, the auxiliary oil supply pipeline is directly connected to the oil inlet pipeline, and the outlet of the oil return pipeline is connected to the oil tank of the lubricating oil station.
[0016] Furthermore, the first straight pipe outlet of the oil return pipeline is connected to the oil tank of the lubricating oil station.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] (1) The utility model provides an integrated high-position oil tank, including a high-position oil tank body and an oil inlet pipeline and an oil return pipeline connected to the high-position oil tank body. The entire structure is compact and simple, and a breathing cap is arranged in the oil return pipeline. The height of the breathing port at the top of the breathing cap is higher than the height of the top of the high-position oil tank body. In this way, the inside of the high-position oil tank body is connected to the external atmosphere through the breathing cap. When no accident occurs, the lubricating oil in the oil supply pipeline enters the high-position oil tank body from the oil inlet pipeline, and the breathing port can discharge the gas in the high-position oil tank body to avoid accidents. No pressure build-up. When an accident occurs and the lubricating oil station cannot supply oil to the unit through the main oil supply pipeline, the breathing cap can avoid the piston effect inside the high-level oil tank body, ensuring that the lubricating oil can use its own weight to enter the main oil supply pipeline along the oil inlet pipeline and the auxiliary oil supply pipeline, and then lubricate the unit in an emergency. The entire integrated high-level oil tank integrates the functions of the three-valve group into the new structure, and the three-valve group is no longer set in the oil supply pipeline, which not only ensures the normal realization of the original functions of the high-level oil tank, but also reduces the failure points in the system pipeline and reduces the design difficulty.
[0019] (2) The utility model provides an integrated high-position oil tank with an oil return window on the first straight pipe, which allows the staff to more conveniently observe the oil return status of the high-position oil tank and determine the lubricating oil reserves inside the high-position oil tank at this time.
[0020] (3) The utility model provides an integrated high-position oil tank in which the oil return pipeline includes a first L-shaped elbow, a second L-shaped elbow and a first straight pipe. In this way, the oil return pipeline is divided into sections, which reduces the processing difficulty. A breathing cap is provided on the second L-shaped elbow, and an oil return window is provided on the first straight pipe. During processing, each pipe section can be processed separately, saving processing time.
[0021] (4) The utility model provides an integrated high-position oil tank breathing cap, which includes an L-shaped tube body and a rainproof cap. The rainproof cap is arranged on the breathing port to prevent moisture from entering the oil return pipe through the breathing port in rainy and snowy weather, and then entering the oil tank of the lubricating oil station.
[0022] (5) The utility model provides a lubricating oil supply system, including a lubricating oil station, an oil inlet pipeline of an integrated high-level oil tank is directly connected to an auxiliary oil supply pipeline of the lubricating oil station, a main oil supply pipeline of the lubricating oil station is directly connected to the lubricating oil pipeline of the unit sliding bearing, the three-valve group is omitted on the auxiliary oil inlet pipeline, and the outlet of the return oil pipeline is connected to the oil tank of the lubricating oil station. When no accident occurs, the lubricating oil in the main oil supply pipeline enters the high-level oil tank body through the auxiliary oil supply pipeline and the oil inlet pipeline in turn, and the breathing cap can discharge the gas in the high-level oil tank body to avoid pressure build-up. When an accident occurs and the lubricating oil station cannot supply oil to the unit through the main oil supply pipeline, the breathing cap can avoid the generation of a piston effect inside the high-level oil tank body, ensuring that the lubricating oil can use its own weight to enter the main oil supply pipeline along the oil inlet pipeline and the auxiliary oil supply pipeline, thereby lubricating the unit in an emergency state, ensuring the normal realization of the original function of the high-level oil tank, and reducing the failure points in the lubricating oil supply system. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic structural diagram of an embodiment of an integrated high-position oil tank of the utility model;
[0024] Figure 2 for Figure 1 Left side view (the first straight pipe and oil inlet pipe are not shown).
[0025] The following are the descriptions of the reference numerals:
[0026] 1-high position oil tank body, 11-oil inlet connection flange; 2-oil inlet pipeline, 3-oil return pipeline, 31-first
[0027] L-shaped elbow, 32-second L-shaped elbow, 33-first straight pipe; 4-throttling orifice plate, 5-breathing cap, 51-rainproof cap, 52-L-shaped pipe body; 6-oil return window, 7-mounting bracket, 71-support plate, 72-fixing plate; 8-anchor bolt. DETAILED DESCRIPTION
[0028] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0029] See also Figure 1-Figure 2 The utility model is an integrated high-position oil tank, comprising a high-position oil tank body 1, and an oil inlet pipeline 2 and an oil return pipeline 3 respectively connected to the oil inlet hole and the oil return hole on the high-position oil tank body 1. The oil inlet hole is arranged at the bottom of one end of the high-position oil tank body 1, and the oil return hole is arranged at the top of the other end of the high-position oil tank body 1. The oil return hole is arranged at the top of the high-position oil tank body 1, so that when lubricating oil overflowing from the high-position oil tank body 1 appears in the oil return pipeline 3, the entire high-position oil tank body 1 is in a full oil state.
[0030] In order to facilitate the connection with the oil inlet pipeline 2, an oil inlet connecting flange 11 is welded on the oil return hole, and a matching docking flange is also set at one end of the oil inlet pipeline 2. The oil inlet connecting flange 11 cooperates with the docking flange, so that the oil inlet pipeline 2 can be connected to the oil inlet hole. The end of the oil inlet pipeline 2 not connected to the oil inlet connecting flange 11 is connected to the auxiliary oil supply pipeline of the lubricating oil station. The lubricating oil can enter the high-level oil tank body 1 through the auxiliary oil supply pipeline and the oil inlet pipeline 2 in turn.
[0031] The oil return pipeline 3 connected to the oil return hole includes a first L-shaped elbow 31, a second L-shaped elbow 32 and a first straight pipe 33 which are connected in sequence. The inlet of the first L-shaped elbow 31 is connected to the oil return hole, and the outlet of the first L-shaped elbow 31 is connected to the inlet of the second L-shaped elbow 32 through a flange, and a throttling orifice plate 4 is provided at the flange connection. When the high-level oil tank body 1 is full of lubricating oil and excess lubricating oil flows back to the oil tank of the lubricating oil station along the oil return pipeline 3, the throttling orifice plate 4 can keep the lubricating oil in a small flow state to avoid long-term static storage of the lubricating oil, which leads to reduced lubrication performance. The outlet of the second L-shaped elbow 32 is connected to the inlet of the first straight pipe 33 through a flange, and the outlet of the first straight pipe 33 is connected to the oil tank of the lubricating oil station. A breathing cap 5 is also connected to the second L-shaped elbow 32, and the breathing cap 5 includes an L-shaped tube body 52, one end of the L-shaped tube body 52 is connected to the side wall of the second L-shaped elbow 32, and a breathing port is arranged at the other end of the L-shaped tube body 52. The height of the breathing port is higher than the top height of the high-position oil tank body 1, and the external atmosphere and the interior of the high-position oil tank body 1 can be connected through the breathing port. When the high-position oil tank body 1 is filled with oil, the air in the high-position oil tank body 1 can be discharged to the atmosphere through the breathing port on the breathing cap 5, thereby avoiding the high-position oil tank body 1 from being pressurized. In order to prevent water from entering through the breathing port in rainy and snowy weather, a rainproof cap 51 is arranged on the breathing port.
[0032] An oil return window 6 is also provided on the first straight pipe 33 . When the high-position oil tank body 1 is filled with lubricating oil, the excess lubricating oil will return to the oil tank of the lubricating oil station along the oil return pipeline 3 . At this time, the oil return condition of the lubricating oil can be observed through the oil return window 6 .
[0033] In order to reliably fix the high-position oil tank body 1, two mounting brackets 7 are arranged at intervals along the length direction of the bottom of the high-position oil tank body 1. The mounting bracket 7 includes a supporting plate 71. The supporting plate 71 is provided with a mounting groove that matches the shape of the bottom of the high-position oil tank body 1. The high-position oil tank body 1 is placed in the mounting groove. A fixing plate 71 is arranged at the bottom of the supporting plate 71. The fixing plate 71 is provided with an anchor hole. Anchor bolts 8 are installed in the anchor holes. The fixing plate 71 is fixed by the anchor bolts 8.
[0034] The utility model also provides a lubricating oil supply system, including a lubricating oil station, on which a main oil supply pipeline and an auxiliary oil supply pipeline connected to the main oil supply pipeline are provided, wherein the main oil supply pipeline is directly connected to the lubricating oil pipeline of the unit sliding bearing. In normal working state, the main oil supply pipeline provides continuous lubrication for the sliding bearing, the auxiliary oil supply pipeline of the lubricating oil station is directly connected to the oil inlet pipeline 2, and the outlet of the first straight pipe 33 in the oil return pipeline 3 is connected to the oil tank of the lubricating oil station.
[0035] During use, if there is no accident, after the lubricating oil comes out of the oil tank of the lubricating oil station, it will be output along the main oil supply pipeline to the sliding bearing that needs lubrication, and part of the lubricating oil will enter the high-position oil tank body 1 along the oil inlet pipeline 2 from the auxiliary oil supply pipeline. When the lubricating oil in the high-position oil tank body 1 is full, the excess lubricating oil will return to the oil tank of the lubricating oil station along the return oil pipeline 3. If an accident occurs, causing the lubricating oil station to interrupt the oil supply to the sliding bearing, at this time, the lubricating oil in the high-position oil tank body 1 will enter the main oil supply pipeline through the oil inlet pipeline 2 and the auxiliary oil supply pipeline in turn due to its own gravity, and can reach the sliding bearing along the main oil supply pipeline to provide emergency oil supply for it, and because of the existence of the breathing port on the breathing cap 5, the inside of the high-position oil tank body 1 is connected to the external atmosphere, avoiding the piston effect, and can ensure that the lubricating oil in the high-position oil tank body 1 smoothly enters the main oil supply pipeline through the oil inlet pipeline 2, and the unit is urgently lubricated and supplied to ensure the safety of the equipment.
[0036] The embodiments described above are merely descriptions of the specific implementation methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.
Claims
1. An integrated high-position oil tank, characterized in that: It comprises a high-position oil tank body (1) and a pipeline connected to the high-position oil tank body (1); The high-position oil tank body (1) is provided with an oil inlet hole at the bottom and an oil return hole at the top; The pipeline comprises an oil inlet pipeline (2) and an oil return pipeline (3); one end of the oil inlet pipeline (2) is connected to the oil inlet hole, one end of the oil return pipeline (3) is connected to the oil return hole, the other end of the oil inlet pipeline (2) is used to be connected to the auxiliary oil supply pipeline of the lubricating oil station, and the other end of the oil return pipeline (3) is used to be connected to the oil tank of the lubricating oil station; a breathing cap (5) is connected to the oil return pipeline (3) for connecting the inside of the high-position oil tank body (1) with the external atmosphere, and the height of the breathing port on the breathing cap (5) is higher than the top height of the high-position oil tank body (1).
2. The integrated high-position oil tank according to claim 1 is characterized in that: The oil inlet hole is provided with an oil inlet connecting flange (11) for connecting to an oil inlet pipeline (2), and one end of the oil inlet pipeline (2) is provided with a docking flange matching the oil inlet connecting flange (11).
3. The integrated high-position oil tank according to claim 2 is characterized in that: The oil return pipeline (3) comprises a first L-shaped curved pipe (31), a second L-shaped curved pipe (32) and a first straight pipe (33) which are connected in sequence, the inlet of the first L-shaped curved pipe (31) is connected to the oil return hole, the outlet of the first L-shaped curved pipe (31) is connected to the inlet of the second L-shaped curved pipe (32) via a flange, and a throttling orifice plate (4) is arranged at the flange connection, the breathing cap (5) is arranged on the second L-shaped curved pipe (32), the inlet of the first straight pipe (33) is connected to the outlet of the second L-shaped curved pipe (32) via a flange, and the outlet of the first straight pipe (33) is used to be connected to an oil tank of a lubricating oil station.
4. The integrated high-position oil tank according to claim 3 is characterized in that: The breathing cap (5) comprises an L-shaped tube body (52) and a rainproof cap (51), one end of the L-shaped tube body (52) is connected to the side wall of the second L-shaped curved tube (32), the breathing port is located at the other end of the L-shaped tube body (52), and the rainproof cap (51) is arranged on the breathing port.
5. The integrated high-position oil tank according to claim 4 is characterized in that: The first straight pipe (33) is provided with an oil return viewing window (6) for observing the oil return status of the lubricating oil.
6. The integrated high-position oil tank according to any one of claims 1 to 5, characterized in that: The oil inlet hole is arranged at the bottom of one end of the high-position oil tank body (1), and the oil return hole is arranged at the top of the other end of the high-position oil tank body (1).
7. The integrated high-position oil tank according to claim 6, characterized in that: A mounting bracket (7) is arranged at the bottom of the high-position oil tank body (1), and two mounting brackets (7) are arranged at intervals along the length direction of the high-position oil tank body (1).
8. The integrated high-position oil tank according to claim 7, characterized in that: The mounting bracket (7) comprises a supporting plate (71) and a fixing plate (72) mounted on the bottom of the supporting plate (71); a mounting groove matching the shape of the bottom of the high-position oil tank body (1) is provided on the supporting plate (71); the high-position oil tank body (1) is located in the mounting groove; and the fixing plate (72) is fixed by means of anchor bolts (8).
9. A lubricating oil supply system, comprising a lubricating oil station, wherein the lubricating oil station is provided with a main oil supply pipeline and a secondary oil supply pipeline connected to the main oil supply pipeline, characterized in that: It also includes an integrated high-position oil tank as described in any one of claims 1 to 8; the main oil supply pipeline is directly connected to the lubricating oil pipeline of the unit sliding bearing, the auxiliary oil supply pipeline is directly connected to the oil inlet pipeline (2), and the outlet of the return oil pipeline (3) is connected to the oil tank of the lubricating oil station.
10. The lubricating oil supply system according to claim 9, characterized in that: The outlet of the first straight pipe (33) of the oil return pipeline (3) is connected to the oil tank of the lubricating oil station.