CN220726741U - Oil return system of water turbine speed regulator - Google Patents
Oil return system of water turbine speed regulator Download PDFInfo
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- CN220726741U CN220726741U CN202322366731.5U CN202322366731U CN220726741U CN 220726741 U CN220726741 U CN 220726741U CN 202322366731 U CN202322366731 U CN 202322366731U CN 220726741 U CN220726741 U CN 220726741U
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- oil leakage
- pipeline
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 8
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 196
- 239000007788 liquid Substances 0.000 claims description 21
- 230000000007 visual effect Effects 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 239000003305 oil spill Substances 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 description 7
- 230000002441 reversible effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The application discloses hydraulic turbine speed regulator oil return system for reduce the circumstances that pollutes the river course because of the oil spill box oil overflows. The application comprises the following steps: one end of the oil leakage pipeline is connected with the lower side wall of the oil leakage tank, and the other end of the oil leakage pipeline is connected with the speed regulator; one end of the oil return pipeline is connected with the top of the oil leakage tank, and the other end of the oil return pipeline is connected with the lower side wall of the oil return tank; the oil return pipeline is sequentially provided with an oil pump, a backflow detection device and a check valve at one side close to the oil leakage box; the backflow detection device includes: the device comprises a shell, a rotatable baffle, a rotating assembly, a boss and a pressure sensor; the rotating component is fixed on the inner side wall of the shell; the boss is arranged on the other inner side wall of the shell opposite to the rotating assembly; one end of the rotatable baffle is rotatably connected with the rotating assembly, the other end of the rotatable baffle can be contacted with the contact plane of the boss, and the contact plane of the boss is close to one side of the check valve; the pressure sensor is arranged on the contact plane of the boss; the alarm is electrically connected with the pressure sensor.
Description
Technical Field
The application relates to the technical field of water turbines, in particular to a water turbine speed regulator oil return system.
Background
The speed regulator of the water turbine is a device for regulating the rotation speed of the water turbine, is one of important auxiliary devices of the hydroelectric generating set, can keep the rotation speed of the set constant, and bears the tasks of starting, stopping, emergency stopping, increasing and decreasing loads and the like.
The water turbine speed regulator may have abnormal oil leakage during operation, and the oil leakage may be collected inside the oil leakage tank and fed into the oil return tank via the oil pump. Because the oil leakage tank is usually arranged at the bottom layer of the factory building, and the oil return tank is arranged above the oil leakage tank, in order to reduce the condition that oil in the oil return tank flows back into the oil return tank under the influence of gravity, a backflow prevention check valve is usually arranged on an oil return pipeline. However, when the check valve fails and the worker does not find the failure in time, the oil in the oil return tank flows back into the oil leakage tank, so that the condition that the river channel is polluted due to the overflow of the oil in the oil leakage tank is caused.
Disclosure of Invention
The application provides a hydraulic turbine speed regulator oil return system, can reduce the circumstances that pollutes the river course because of the oil spill box in the oil spill box overflows.
The application provides a hydraulic turbine speed regulator oil return system, include: the device comprises a speed regulator, an oil leakage pipeline, an oil leakage tank, an oil pump, an oil return pipeline, a backflow detection device, an alarm, a check valve and an oil return tank;
one end of the oil leakage pipeline is connected with the lower side wall of the oil leakage box, and the other end of the oil leakage pipeline is connected with the speed regulator;
one end of the oil return pipeline is connected with the top of the oil leakage tank, and the other end of the oil return pipeline is connected with the lower side wall of the oil return tank;
the oil return pipeline is sequentially provided with the oil pump, the backflow detection device and the check valve at one side close to the oil leakage box;
the backflow detecting device includes: the device comprises a shell, a rotatable baffle, a rotating assembly, a boss and a pressure sensor;
the rotating component is fixed on the inner side wall of the shell;
the boss is arranged on the other inner side wall of the shell opposite to the rotating assembly;
one end of the rotatable baffle is rotatably connected with the rotating assembly, the other end of the rotatable baffle can be contacted with the contact plane of the boss, and the contact plane of the boss is close to one side of the check valve;
the pressure sensor is arranged on a contact plane of the boss;
the alarm is electrically connected with the pressure sensor.
Optionally, the hydraulic turbine governor oil return system further includes: an oil leakage level gauge;
the oil leakage liquid level gauge is arranged in the oil leakage tank and is used for detecting the oil leakage liquid level in the oil leakage tank, and when the oil leakage liquid level reaches a set value, the oil pump is started.
Optionally, the oil leakage liquid level meter adopts a magnetic flap liquid level meter.
Optionally, the rotating assembly includes: a fixed base, a screw and a nut;
the fixed base is provided with a first through hole and a second through hole which are parallel, and one end of the rotatable baffle is provided with a third through hole;
the screw sequentially passes through the first through hole, the third through hole and the second through hole and then is in threaded connection with the nut.
Optionally, the hydraulic turbine governor oil return system further includes: a filter;
the filter is arranged on an oil return pipeline between the oil pump and the backflow detection device.
Optionally, the filter is a hydraulic oil filter.
Optionally, the boss is right triangle in shape;
the vertical edge of the boss is arranged on the other inner side wall of the shell opposite to the rotating assembly, and the right angle of the boss faces to one side close to the check valve.
Optionally, the shell is a cuboid shell.
Optionally, a visual observation window is arranged on the side wall of the shell.
Optionally, the check valve is a lifting type vertical flap check valve.
From the above technical scheme, the application has the following effects:
one end of the oil leakage pipeline is connected with the lower side wall of the oil leakage tank, and the other end of the oil leakage pipeline is connected with the speed regulator; one end of the oil return pipeline is connected with the top of the oil leakage tank, and the other end of the oil return pipeline is connected with the lower side wall of the oil return tank; the oil return pipeline is sequentially provided with an oil pump, a backflow detection device and a check valve at one side close to the oil leakage box; the backflow detection device includes: the device comprises a shell, a rotatable baffle, a rotating assembly, a boss and a pressure sensor; the rotating component is fixed on the inner side wall of the shell; the boss is arranged on the other inner side wall of the shell opposite to the rotating assembly; one end of the rotatable baffle is rotatably connected with the rotating assembly, the other end of the rotatable baffle can be contacted with the contact plane of the boss, and the contact plane of the boss is close to one side of the check valve; the pressure sensor is arranged on the contact plane of the boss; the alarm is electrically connected with the pressure sensor. Like this, when the check valve breaks down, the oil in the oil return tank can flow backwards along the oil return pipeline under the action of gravity, and when flowing through backflow detection device, the oil in the oil return pipeline drives rotatable baffle to rotate downwards under the action of gravity until the other end of rotatable baffle and the contact plane laminating of boss, and the contact plane of boss forms confined plane with rotatable baffle and can block oil to continue to flow downwards this moment. After the other end of the rotatable baffle is attached to the contact plane of the boss, the pressure born by the contact plane of the boss is larger and larger under the action of the gravity of blocked oil, and when the pressure sensor detects that the current pressure value is larger than the limit value, the pressure sensor sends an electric signal to the alarm so that the alarm sends an alarm signal. Therefore, when the check valve fails, an alarm signal can be timely sent out to prompt a worker to perform fault treatment while blocking the oil in the oil return tank from flowing backwards, so that the condition that the river channel is polluted due to overflow of the oil in the oil leakage tank is reduced.
Drawings
FIG. 1 is a schematic diagram of a hydraulic turbine governor oil return system of the present application;
fig. 2 is a schematic structural diagram of the backflow detecting device in the present application;
fig. 3 is a schematic structural view of the rotating assembly in the present application.
Detailed Description
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely used to illustrate the relative positional relationships between the components or portions, and do not particularly limit the specific mounting orientations of the components or portions.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the structures, proportions, sizes, etc. shown in the drawings herein are shown and described in detail for purposes of illustration only, and are not intended to limit the scope of the utility model, which is defined in the claims, unless otherwise indicated, and which are otherwise used by those skilled in the art to which the utility model pertains.
The application provides a hydraulic turbine speed regulator oil return system for reduce the circumstances that pollutes the river course because of the oil spill box oil overflows.
The hydraulic turbine speed regulator oil return system is applied to a speed regulating system in a hydroelectric generating set.
Referring to fig. 1 and 2, the oil return system of the hydraulic turbine governor 1 in the present embodiment includes: the device comprises a speed regulator 1, an oil leakage pipeline 2, an oil leakage box 3, an oil pump 4, an oil return pipeline 5, a backflow detection device 6, an alarm 7, a check valve 8 and an oil return box 9; one end of the oil leakage pipeline 2 is connected with the lower side wall of the oil leakage tank 3, and the other end is connected with the speed regulator 1; one end of the oil return pipeline 5 is connected with the top of the oil leakage tank 3, and the other end is connected with the lower side wall of the oil return tank 9; the oil return pipeline 5 is provided with an oil pump 4, a backflow detection device 6 and a check valve 8 in sequence at one side close to the oil leakage tank 3; the backflow detecting device 6 includes: a housing 61, a rotatable baffle 62, a rotating assembly 63, a boss 64, and a pressure sensor 65; the rotating assembly 63 is fixed on the inner side wall of the shell 61; boss 64 is mounted on the other inner side wall of housing 61 opposite to rotating assembly 63; one end of the rotatable baffle 62 is rotatably connected with the rotating assembly 63, and the other end of the rotatable baffle can be contacted with a contact plane of the boss 64, and the contact plane of the boss 64 is close to one side of the check valve 8; the pressure sensor 65 is mounted on the contact plane of the boss 64; the alarm 7 is electrically connected to the pressure sensor 65.
In this embodiment, the oil leaked or leaked by the speed regulator 1 due to the abnormality flows into the oil leakage tank 3 through the oil leakage pipeline 2, and the leaked oil collected in the oil leakage tank 3 enters the oil return tank 9 for recycling along the oil return pipeline 5 under pumping of the oil pump 4. One end of the rotatable baffle 62 is rotatably connected to the rotating member 63, and the other end of the rotatable baffle 62 rotates in accordance with the flow direction of the oil under the impact of the oil in the oil return pipe 5, and when the other end of the rotatable baffle 62 rotates to the contact plane of the boss 64, the contact plane of the boss 64 blocks the rotatable baffle 62 from continuing to rotate. Since the contact plane of the boss 64 is close to one side of the check valve 8, when the oil in the oil return pipe 5 flows from the oil leakage tank 3 into the oil return tank 9, the rotatable baffle 62 rotates following the oil, and at this time the oil can enter the check valve 8 through the reverse flow detecting device 6, and when the oil in the oil return pipe 5 flows back from the oil return tank 9 into the oil return tank 3, the contact plane of the boss 64 blocks the rotatable baffle 62 from rotating, and at this time the oil stays in the reverse flow detecting device 6. The pressure sensor 65 can be in communication connection with a control system of the unit, and an alarm module is arranged in a configuration picture of the control system to serve as an alarm 7, so that an operator on duty can conveniently check alarm information in real time. In another implementation manner, an on-site audible and visual alarm 7 can be arranged beside the oil leakage box 3 and in communication with the pressure sensor 65, so that the inspection personnel can conveniently check the alarm information in time.
Thus, when the check valve 8 fails, the oil in the oil return tank 9 flows back along the oil return pipe 5 under the action of gravity, and when the oil passes through the backflow detecting device 6, the oil in the oil return pipe 5 drives the rotatable baffle 62 to rotate downwards under the action of gravity until the other end of the rotatable baffle 62 is attached to the contact plane of the boss 64, and at this time, the contact plane of the boss 64 and the rotatable baffle 62 form a closed plane to block the oil from continuing to flow downwards. After the other end of the rotatable baffle 62 is attached to the contact plane of the boss 64, the pressure borne by the contact plane of the boss 64 will be greater and greater under the action of the gravity of the blocked oil, and when the pressure sensor 65 detects that the current pressure value is greater than the limit value, the pressure sensor 65 sends an electrical signal to the alarm 7 so that the alarm 7 sends an alarm signal. Therefore, when the check valve 8 fails, an alarm signal can be timely sent out to prompt a worker to perform fault treatment while blocking the oil in the oil return tank 9 from flowing backwards, so that the condition that the river is polluted due to the overflow of the oil in the oil leakage tank 3 is reduced.
Optionally, referring to fig. 1, the oil return system of the hydraulic turbine governor 1 in this embodiment further includes: an oil leakage level gauge 10;
the oil leakage liquid level meter 10 is installed in the oil leakage tank 3, and the oil leakage liquid level meter 10 is used for detecting the oil leakage liquid level in the oil leakage tank 3, and when the oil leakage liquid level reaches a set value, the oil pump 4 is started.
Optionally, referring to fig. 1, the oil leakage level gauge 10 in this embodiment adopts a magnetic flap level gauge.
In this embodiment, the oil leakage liquid level gauge 10 may be set to monitor the oil leakage liquid level in real time, and when the oil leakage liquid level in the oil leakage tank 3 reaches a set value, the oil pump 4 is started to pump the oil leakage in the oil leakage tank 3 into the oil return tank 9, so that the operation load of the oil pump 4 may be reduced, and the service life of the oil pump 4 may be prolonged. The oil leakage liquid level meter 10 can adopt a magnetic flap liquid level meter, and can send liquid level electric signals into a control system and simultaneously facilitate inspection staff to check liquid level information on site.
Optionally, referring to fig. 3, the rotating assembly 63 in this embodiment includes: a fixing base 631, a screw 632, and a nut 633;
the fixed base 631 is provided with a first through hole and a second through hole which are parallel, and one end of the rotatable baffle 62 is provided with a third through hole;
the screw 632 sequentially passes through the first through hole, the third through hole and the second through hole and then is in threaded connection with the nut 633.
In this embodiment, the third through hole of the rotatable baffle 62 is located between and aligned parallel to the first through hole and the second through hole. The external thread of the screw 632 sequentially passes through the first through hole, the third through hole and the second through hole and then is in non-tight threaded connection with the internal thread of the nut 633, so that the third through hole of the rotatable baffle 62 can rotate on the external thread of the screw 632.
Optionally, referring to fig. 1, the oil return system of the hydraulic turbine governor 1 in this embodiment further includes: a filter 11;
the filter 11 is installed on the return line 5 between the oil pump 4 and the reverse flow detecting means 6.
Alternatively, referring to fig. 1, the filter 11 in the present embodiment is a hydraulic oil filter 11.
In this embodiment, a filter 11 may be disposed between the outlet pipe of the oil pump 4 and the inlet pipe of the backflow detecting device 6, and the filter 11 is used to filter impurities in the leaked oil fed into the oil return tank 9, so as to improve the recycling quality of the leaked oil. The filter 11 can adopt a hydraulic oil filter 11 for a hydraulic system, and can intercept pollutants in oil liquid and reduce the deterioration of the oil liquid.
Alternatively, referring to fig. 1 and 2, the boss 64 in the present embodiment has a right triangle shape;
the vertical edge of the boss 64 is mounted on the other inner side wall of the housing 61 opposite to the rotating member 63, and the right angle of the boss 64 is directed toward the side close to the check valve 8.
In this embodiment, the right-angle side of the boss 64 faces the side of the check valve 8, and the sharp-angle side faces the side of the oil pump 4, so that the oil in the oil leakage tank 3 can flow along the slope of the boss 64 when flowing into the oil return tank 9, and the flow resistance of the boss 64 to the oil is reduced.
Alternatively, referring to fig. 1 and 2, the housing 61 in the present embodiment is a rectangular housing 61.
In this embodiment, the caliber of the inlet and outlet of the housing 61 is consistent with the caliber of the oil return pipeline 5, so that the connection between the housing 61 and the oil return pipeline 5 is facilitated, the middle body of the housing 61 can be cuboid, and the specific size can be adjusted according to actual needs, which is not limited herein.
Optionally, as shown in fig. 1 and 2, a visual observation window 66 is provided on a side wall of the housing 61 in the present embodiment.
In this embodiment, the visual observation window 66 is a transparent window, so that it is convenient for the inspector to observe the flow condition of the oil in the backflow detecting device 6.
Alternatively, referring to fig. 1, the check valve 8 in the present embodiment is a lifting type vertical flap check valve 8.
In the present embodiment, the elevation type vertical flap check valve 8 is a check valve 8 in which a valve flap slides along a vertical center line of a valve body, and the elevation type vertical flap check valve 8 is vertically installed on the oil return pipe 5 following a flow direction of oil.
It should be noted that the foregoing summary and the detailed description are intended to demonstrate practical applications of the technical solutions provided herein, and should not be construed as limiting the scope of the present application. Various modifications, equivalent alterations, or improvements will occur to those skilled in the art, and are within the spirit and principles of this application. The scope of the application is defined by the appended claims.
Claims (10)
1. An oil return system for a water turbine governor, comprising: the device comprises a speed regulator, an oil leakage pipeline, an oil leakage tank, an oil pump, an oil return pipeline, a backflow detection device, an alarm, a check valve and an oil return tank;
one end of the oil leakage pipeline is connected with the lower side wall of the oil leakage box, and the other end of the oil leakage pipeline is connected with the speed regulator;
one end of the oil return pipeline is connected with the top of the oil leakage tank, and the other end of the oil return pipeline is connected with the lower side wall of the oil return tank;
the oil return pipeline is sequentially provided with the oil pump, the backflow detection device and the check valve at one side close to the oil leakage box;
the backflow detecting device includes: the device comprises a shell, a rotatable baffle, a rotating assembly, a boss and a pressure sensor;
the rotating component is fixed on the inner side wall of the shell;
the boss is arranged on the other inner side wall of the shell opposite to the rotating assembly;
one end of the rotatable baffle is rotatably connected with the rotating assembly, the other end of the rotatable baffle can be contacted with the contact plane of the boss, and the contact plane of the boss is close to one side of the check valve;
the pressure sensor is arranged on a contact plane of the boss;
the alarm is electrically connected with the pressure sensor.
2. The hydraulic turbine governor oil return system of claim 1, further comprising: an oil leakage level gauge;
the oil leakage liquid level gauge is arranged in the oil leakage tank and is used for detecting the oil leakage liquid level in the oil leakage tank, and when the oil leakage liquid level reaches a set value, the oil pump is started.
3. The hydraulic turbine governor oil return system of claim 2, wherein the oil leakage level gauge is a magnetic flap level gauge.
4. The hydraulic turbine governor oil return system of claim 1, wherein the rotating assembly comprises: a fixed base, a screw and a nut;
the fixed base is provided with a first through hole and a second through hole which are parallel, and one end of the rotatable baffle is provided with a third through hole;
the screw sequentially passes through the first through hole, the third through hole and the second through hole and then is in threaded connection with the nut.
5. The hydraulic turbine governor oil return system of claim 1, further comprising: a filter;
the filter is arranged on the oil return pipeline between the oil pump and the backflow detection device.
6. The hydraulic governor oil return system of claim 5, wherein the filter is a hydraulic oil filter.
7. The hydraulic governor oil return system of claim 1 wherein the boss is right triangle in shape;
the vertical edge of the boss is arranged on the other inner side wall of the shell opposite to the rotating assembly, and the right angle of the boss faces to one side close to the check valve.
8. The hydraulic turbine governor oil return system of any of claims 1 to 7, wherein the housing is a cuboid housing.
9. The hydraulic turbine governor oil return system of any of claims 1 to 7, wherein a visual observation window is provided on a side wall of the housing.
10. The hydraulic turbine governor oil return system of any of claims 1 to 7, wherein the check valve is a lifting vertical flap check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322366731.5U CN220726741U (en) | 2023-08-31 | 2023-08-31 | Oil return system of water turbine speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322366731.5U CN220726741U (en) | 2023-08-31 | 2023-08-31 | Oil return system of water turbine speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220726741U true CN220726741U (en) | 2024-04-05 |
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ID=90500749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322366731.5U Active CN220726741U (en) | 2023-08-31 | 2023-08-31 | Oil return system of water turbine speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220726741U (en) |
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2023
- 2023-08-31 CN CN202322366731.5U patent/CN220726741U/en active Active
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