Oil mist collecting device for bearing oil basin

Abstract

The invention discloses an oil mist collecting device for a bearing oil basin, which comprises a first collecting pipe, an oil mist absorbing device and a collecting box, the first collecting pipe is provided with a first end and a second end, the first end of the first collecting pipe is connected with the bearing oil basin, the oil mist absorbing device is provided with an oil inlet and an oil outlet, the oil inlet is connected with the second end of the first collecting pipe, and the collecting box is connected with the oil mist absorbing device. And the oil outlet is connected with the collecting box. According to the oil mist collecting device, the oil mist is directly sucked into the oil mist suction device from the interior of the oil basin, secondary pollution can be prevented, the oil mist treatment effect is better, and the collecting efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of oil mist treatment methods, and in particular to an oil mist collection device for a bearing oil basin. Background Art

[0002] Hydropower unit bearings are medium-voltage devices that support the unit's rotor, main shaft, and other rotating components, enabling them to rotate stably around their axis and ensuring normal operation. However, during unit operation, the rotation of the unit can cause oil slinging and oil mist to form in the bearing oil pan, contaminating nearby equipment surfaces. Furthermore, mechanical braking during generator operation generates brake dust, and carbon powder is generated on the motor's carbon brushes and slip rings. This dust and carbon powder easily adhere to the oil mist, forming oil contamination. Long-term adsorption on the insulation layer can corrode the generator insulation, degrade insulation performance, accelerate aging, and easily cause generator coil short circuits or breakdown, posing a serious threat to safe power production.

[0003] The oil mist collection device in the related art is installed near the bearing oil pan. The oil mist overflows from the oil pan and diffuses into the air. The oil mist collection device sucks in the diffused oil mist in the air for processing, thereby realizing oil mist collection. The oil mist collection device diffuses the oil mist overflowing into the air, and has certain limitations on the treatment range of the oil mist, and the treatment efficiency of the oil mist is low. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes an oil mist collection device for a bearing oil basin, which directly sucks the oil mist from the inside of the oil basin into the oil mist suction device, thereby preventing secondary pollution, achieving better oil mist treatment effect and higher collection efficiency.

[0006] An oil mist collection device for a bearing oil basin in an embodiment of the present invention includes a first collecting pipe, an oil mist suction device and a collection box, wherein the first collecting pipe has a first end and a second end, and the first end of the first collecting pipe is connected to the bearing oil basin; the oil mist suction device has an oil inlet and an oil outlet, the oil inlet is connected to the second end of the first collecting pipe, and the oil outlet is connected to the collection box.

[0007] In some embodiments, there are multiple first collecting tubes, and the first ends of the multiple first collecting tubes are spaced apart along the circumference of the bearing oil basin.

[0008] In some embodiments, there are multiple oil mist suction devices, each of which corresponds to the first collecting pipe one by one, and the oil outlets of the multiple oil mist suction devices are all connected to the collecting box.

[0009] In some embodiments, the oil mist collection device further includes a second collection pipe, both ends of which are respectively connected to the oil outlet and the collection box, and the inner diameter of the second collection pipe is smaller than the inner diameter of the first collection pipe.

[0010] In some embodiments, the oil mist collection device further comprises an oil pump having an inlet connected to the collection box and an outlet for connecting to the bearing oil basin.

[0011] In some embodiments, a liquid level monitoring device is provided in the collection box.

[0012] In some embodiments, the oil mist collection device further includes an oil quality analysis device, and the oil quality analysis device is connected to the collection box.

[0013] In some embodiments, the oil mist collection device further includes a control device, and the liquid level monitoring device, the oil quality analysis device, and the oil pump are all electrically connected to the control device.

[0014] In some embodiments, the oil mist collection device further includes an alarm device, and the alarm device is electrically connected to the control device.

[0015] In some embodiments, the oil mist collection device further includes a display screen, which is electrically connected to the control device.

[0016] The oil mist collection device for a bearing oil basin, according to an embodiment of the present invention, is suitable for collecting oil mist from the bearings of a hydroelectric generator set. The oil mist collection device is started and operated simultaneously with the hydroelectric generator set. The oil mist generated during the operation of the hydroelectric generator set's bearings is directly absorbed by the oil mist suction device. After passing through the oil mist suction device, the oil mist is converted into liquid oil and collected in a collection tank, thereby collecting the bearing oil mist. Compared to the related art method of diffusing oil mist into the air and then collecting it, the oil mist collection device according to the present invention draws the oil mist directly from the oil basin into the oil mist suction device, preventing secondary contamination and achieving better oil mist treatment and higher collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an oil mist collection device according to an embodiment of the present invention.

[0018] Reference numerals: 100, oil mist collecting device;

[0019] 1. First collecting tube; 11. First end; 12. Second end;

[0020] 2. Oil mist suction device;

[0021] 3. Collection box;

[0022] 4. Second collection tube;

[0023] 5. Oil collecting pipe;

[0024] 6. Oil pump;

[0025] 7. Liquid level monitoring device;

[0026] 8. Oil quality analysis device;

[0027] 9. Control device;

[0028] 200. Bearing oil basin. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figure 1 As shown, an oil mist collection device 100 for a bearing oil basin according to an embodiment of the present invention includes a first collecting pipe 1, an oil mist suction device 2 and a collecting box 3. The first collecting pipe 1 has a first end 11 and a second end 12. The first end 11 of the first collecting pipe 1 is connected to the bearing oil basin 200. The oil mist suction device 2 has an oil inlet and an oil outlet. The oil inlet is connected to the second end 12 of the first collecting pipe 1, and the oil outlet is connected to the collecting box 3.

[0031] The oil mist collection device 100 for a bearing oil basin according to an embodiment of the present invention is suitable for collecting oil mist from the bearings of a hydroelectric generator set. The oil mist collection device 100 is started and operated simultaneously with the hydroelectric generator set. The oil mist generated by the bearings during operation is directly absorbed by the oil mist suction device 2. After passing through the oil mist suction device 2, the oil mist is converted into liquid oil and collected in the collection box 3, thereby collecting the bearing oil mist. Compared to the related art method of diffusing oil mist into the air and then collecting it, the oil mist collection device 100 according to the present invention draws the oil mist directly from the oil basin into the oil mist suction device 2, preventing secondary contamination, achieving better oil mist treatment, and increasing oil mist collection efficiency.

[0032] Alternatively, as Figure 1 As shown, the top wall of the bearing oil basin 200 has an oil suction hole, and the first end 11 of the first collecting pipe 1 is connected to the oil suction hole.

[0033] Optionally, the oil mist suction device 2 includes an exhaust fan and a filter.

[0034] Therefore, the exhaust fan can form a negative pressure in the first collecting pipe 1, and then suck the oil mist generated in the bearing oil basin 200 into the first collecting pipe 1. The oil mist collides and condenses in the first collecting pipe 1, and becomes liquid oil after passing through the exhaust fan; the filter can filter the oil entering the collection box 3 to improve the quality of the liquid oil in the collection box 3.

[0035] In some embodiments, there are multiple first collecting tubes 1 , and the first ends 11 of the multiple first collecting tubes 1 are arranged at intervals along the circumference of the bearing oil basin 200 .

[0036] In some embodiments, there are multiple oil mist suction devices 2 , each of which corresponds to the first collecting pipe 1 , and the oil outlets of the multiple oil mist suction devices 2 are all connected to the collecting box 3 .

[0037] By setting up multiple first collection pipes 1, the multiple first collection pipes 1 are evenly covered on the top of the bearing oil basin 200, which can improve the efficiency of oil mist suction and reduce the probability of oil mist overflowing into the external environment; in addition, by setting up multiple oil mist suction devices 2, each oil mist suction device 2 provides a smaller suction force to suck away the oil mist at the corresponding position, preventing the suction force from being too large and sucking out the liquid oil in the bearing oil basin 200, thereby ensuring the stable operation of the oil mist collection device 100.

[0038] Specifically, if Figure 1 As shown, there are four first collecting pipes 1 and four oil mist suction devices 2. The first ends 11 of the four first collecting pipes 1 are evenly distributed along the circumference of the bearing oil basin 200, that is, the four first collecting pipes 1 can respectively absorb oil mist from four directions of the bearing oil basin 200; the four oil mist suction devices 2 are started, and negative pressure is generated in the four first collecting pipes 1, thereby forming a negative pressure environment on the upper side of the inner part of the bearing oil basin 200, so that the oil mist generated during the operation of the bearing is respectively sucked into the four first collecting pipes 1, and then collected in a collection box 3 after passing through the four oil mist suction devices 2, which can greatly improve the oil mist collection efficiency.

[0039] Of course, in other embodiments, according to the size of the bearing oil basin 200 and the operating state of the bearing, the number of the first collecting pipes 1 and the oil mist suction device 2 can also be set to other values, such as three, five, six, etc.

[0040] In some embodiments, the oil mist collection device 100 further includes a second collection pipe 4 , both ends of which are respectively connected to the oil outlet and the collection box 3 , and the inner diameter of the second collection pipe 4 is smaller than that of the first collection pipe 1 .

[0041] Through the above arrangement, the flow rate of the oil mist in the first collecting pipe 1 is relatively low, which is more conducive to the collision and condensation of the oil mist, and then the oil mist becomes liquid oil after passing through the oil mist suction device 2 and is collected in the collecting box 3.

[0042] Specifically, if Figure 1 As shown, there are also four second collecting pipes 4, which correspond one-to-one to the oil mist suction devices 2; the top wall of the collecting box 3 is connected to the oil collecting pipe 5, the diameter of the oil collecting pipe 5 is larger than the diameter of the second collecting pipe 4, and the four second collecting pipes 4 are all connected to the oil collecting pipe 5; thus, under the action of the oil mist suction device 2, the oil mist generated by the bearing operation when the hydropower unit generates electricity is sucked into the four first collecting pipes 1, gathered in the four first collecting pipes 1, and becomes liquid oil after passing through the oil mist suction device 2, and then collected in the collecting box 3 through the four second collecting pipes 4, thereby realizing the oil mist collection process and preventing the oil mist from overflowing and polluting the external environment and surrounding equipment.

[0043] In some embodiments, the oil mist collection device 100 further includes an oil pump 6 , which has an inlet connected to the collection box 3 and an outlet for connecting to the bearing oil basin 200 .

[0044] Specifically, if Figure 1 As shown, the inlet of the oil pump 6 is connected to the lower side of the collecting box 3 through a pipe, and the outlet of the oil pump 6 is connected to the top wall of the bearing oil basin 200 through a pipe. The oil pump 6 can pump the liquid oil collected in the collecting box 3 into the bearing oil basin 200 to realize the recycling of oil mist and prevent oil waste.

[0045] In some embodiments, as Figure 1 As shown, a liquid level monitoring device 7 is provided in the collection box 3 .

[0046] Optionally, the liquid level monitoring device 7 is a liquid level meter.

[0047] Therefore, the operation and maintenance personnel can obtain the liquid level of the liquid oil in the collection box 3 based on the liquid level monitoring device 7. When the liquid level in the collection box 3 reaches the preset liquid level, the oil pump 6 can be started to pump the liquid oil in the collection box 3 into the bearing oil basin 200 for reuse. At the same time, the liquid level in the collection box 3 can be prevented from being too high and overflowing.

[0048] In some embodiments, the oil mist collection device 100 further includes an oil quality analysis device 8 , which is connected to the collection box 3 .

[0049] Optionally, the oil quality analysis device 8 is an oil quality analyzer.

[0050] The oil quality analyzer can analyze the particle size, moisture content and other characteristics of the liquid oil in the collection box 3 to determine whether the quality of the liquid oil in the collection box 3 is qualified, and then determine whether the liquid oil in the collection box 3 can be pumped into the bearing oil basin 200 for reuse.

[0051] In some embodiments, the oil mist collection device 100 further includes a control device 9 , and the liquid level monitoring device 7 , the oil quality analysis device 8 and the oil pump 6 are all electrically connected to the control device 9 .

[0052] It is known that the oil collected by the oil mist collection device 100 in the related art needs to be discharged regularly by the operation and maintenance personnel, which is troublesome to operate and has the risk of oil overflow.

[0053] Through the above settings, the liquid level data monitored by the liquid level monitoring device 7 can be transmitted to the control device 9, and the oil analysis data of the oil quality analysis device 8 can also be transmitted to the control device 9. The control device 9 can determine whether to start the oil pump 6 based on the received liquid level data and oil analysis data; when the liquid level data shows that the liquid level in the collection box 3 reaches the preset liquid level, and the oil analysis data shows that the quality of the liquid oil in the collection box 3 is qualified, the control device 9 controls the oil pump 6 to start, and pumps the liquid oil in the collection box 3 6 into the bearing oil basin 200, so as to realize the recycling of oil mist and keep the oil level of the bearing oil basin 200 stable.

[0054] In this way, the liquid oil in the collection box 3 can be automatically recycled and reused without the need for regular discharge by operation and maintenance personnel, thereby improving the convenience of operation and reducing the risk of oil overflow.

[0055] Optionally, the oil mist suction device 2 is electrically connected to the control device 9 .

[0056] Thus, the start and stop of the oil mist suction device 2 can be controlled by the control device 9, so that the oil mist suction device 2 can be synchronized with the start and stop of the hydropower unit.

[0057] In some embodiments, the oil mist collection device 100 further includes an alarm device, which is electrically connected to the control device 9 .

[0058] When the oil analysis data shows that the quality of the liquid oil in the collection box 3 is unqualified, the alarm device can send an alarm signal to remind the operation and maintenance personnel that the quality of the liquid oil in the collection box 3 is unqualified so that the operation and maintenance personnel can handle it in time.

[0059] Optionally, the alarm device is an audible, optical and electrical alarm.

[0060] In some embodiments, the oil mist collection device 100 further includes a display screen, which is electrically connected to the control device 9 .

[0061] The control device 9 can display the received liquid level data and oil analysis data on a display screen so that operation and maintenance personnel can understand the operation status of the oil mist collection device 100.

[0062] The oil mist collection device 100 of the embodiment of the present invention uses the control device 9 to control the oil mist suction device 2 to start synchronously with the hydropower unit. Under the action of the oil mist suction device 2, the oil mist generated by the bearing of the hydropower unit passes through the first collection pipe 1 and the second collection pipe 4 in sequence and is collected in the collection box 3, which can prevent the oil mist from overflowing into the outside air and improve the treatment effect and collection efficiency of the oil mist.

[0063] In addition, the liquid level monitoring device 7 can monitor the liquid level of the collection box 3 in real time, and the oil quality analysis device 8 can analyze the quality of the liquid oil in the collection box 3. When the liquid level in the collection box 3 reaches the preset liquid level and the quality of the liquid oil in the collection box 3 is qualified, the control device 9 controls the oil pump 6 to start and pump the liquid oil in the collection box 3 into the bearing oil basin 200 to realize internal circulation, realize the recycling of oil mist, and keep the oil level of the bearing oil basin 200 stable.

[0064] The oil mist collection device 100 of the embodiment of the present invention does not require personnel to discharge liquid oil regularly, which is conducive to maintaining a stable oil level in the bearing oil basin 200. It can realize functions such as oil mist treatment, oil quality detection, and liquid oil reflux, and effectively solve a series of problems in the process of oil mist treatment of the unit bearing.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0067] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0068] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0069] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0070] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An oil mist collecting device (100) for a bearing oil basin, characterized in that: The invention comprises a first collecting pipe (1), an oil mist suction device (2) and a collecting box (3), wherein the first collecting pipe (1) has a first end (11) and a second end (12), the first end (11) of the first collecting pipe (1) is connected to the bearing oil basin, the oil mist suction device (2) has an oil inlet and an oil outlet, the oil inlet is connected to the second end (12) of the first collecting pipe (1), and the oil outlet is connected to the collecting box (3).

2. The oil mist collecting device (100) for a bearing oil basin according to claim 1, characterized in that: There are a plurality of first collecting tubes (1), and the first ends (11) of the plurality of first collecting tubes (1) are arranged at intervals along the circumference of the bearing oil basin.

3. The oil mist collecting device (100) for a bearing oil basin according to claim 2, characterized in that: There are multiple oil mist suction devices (2), each of which corresponds to the first collecting pipe (1) one by one, and the oil outlets of the multiple oil mist suction devices (2) are all connected to the collecting box (3).

4. The oil mist collecting device (100) for a bearing oil basin according to claim 3, characterized in that: The oil mist collection device (100) further comprises a second collection pipe (4), the two ends of which are respectively connected to the oil outlet and the collection box (3), and the inner diameter of the second collection pipe (4) is smaller than the inner diameter of the first collection pipe (1).

5. The oil mist collecting device (100) for a bearing oil basin according to any one of claims 1 to 4, characterized in that: The oil mist collecting device (100) further comprises an oil pump (6), wherein the oil pump (6) has an inlet connected to the collecting box (3) and an outlet for connecting to the bearing oil basin.

6. The oil mist collecting device (100) for a bearing oil basin according to claim 5, characterized in that: A liquid level monitoring device (7) is provided in the collection box (3).

7. The oil mist collecting device (100) for a bearing oil basin according to claim 6, characterized in that: The oil mist collection device (100) further comprises an oil quality analysis device (8), and the oil quality analysis device (8) is connected to the collection box (3).

8. The oil mist collecting device (100) for a bearing oil basin according to claim 7, characterized in that: The oil mist collection device (100) further comprises a control device (9), and the liquid level monitoring device (7), the oil quality analysis device (8) and the oil pump (6) are all electrically connected to the control device (9).

9. The oil mist collecting device (100) for a bearing oil basin according to claim 8, characterized in that: The oil mist collection device (100) further comprises an alarm device, and the alarm device is electrically connected to the control device (9).

10. The oil mist collecting device (100) for a bearing oil basin according to claim 8, characterized in that: The oil mist collection device (100) further comprises a display screen, which is electrically connected to the control device (9).

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