CN220186541U - Vacuum oil purifying device for sealing oil of steam turbine - Google Patents
Vacuum oil purifying device for sealing oil of steam turbine Download PDFInfo
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- CN220186541U CN220186541U CN202321357118.0U CN202321357118U CN220186541U CN 220186541 U CN220186541 U CN 220186541U CN 202321357118 U CN202321357118 U CN 202321357118U CN 220186541 U CN220186541 U CN 220186541U
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- oil
- vacuum
- liquid level
- level controller
- vacuum tank
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- 238000007789 sealing Methods 0.000 title claims description 11
- 239000007788 liquid Substances 0.000 claims abstract description 82
- 238000000746 purification Methods 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 7
- 239000012530 fluid Substances 0.000 claims 2
- 239000003921 oil Substances 0.000 description 133
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Degasification And Air Bubble Elimination (AREA)
Abstract
The utility model relates to a turbine seal oil vacuum oil purifying device which comprises an oil inlet pipeline, a vacuum separator, an oil outlet pipeline and an oil drain pump which are sequentially connected, wherein the vacuum separator comprises a vacuum tank and a mechanical liquid level controller, the mechanical liquid level controller is communicated with the oil inlet pipeline and is arranged in the vacuum tank, and the mechanical liquid level controller is positioned at a preset liquid level in the vacuum tank. Compared with the prior art, the utility model has the advantages of high stability and safety and the like.
Description
Technical Field
The utility model relates to the field of steam turbine devices, in particular to a vacuum oil purifying device for sealing oil of a steam turbine.
Background
At present, a sealing oil system in a steam turbine device adopts double-flow ring sealing, a vacuum oil purifying device with the model TY-II-200F is designed in an empty side sealing oil return pipeline, the water content in treated oil liquid is less than or equal to 50ppm, and the removal rate of mechanical impurities in the oil liquid is up to 98 percent. The original design in the device has the oil injection prevention system, adopts automatic control, and is provided with an oil inlet electromagnetic valve, when oil enters the vacuum separator, the oil level gradually rises, and the oil inlet electromagnetic valve is controlled by a liquid level controller to be regulated. When the oil inlet amount is larger than the oil outlet amount, the oil level gradually rises, and the oil inlet flow needs to be controlled and regulated, so that the equipment can work at the normal oil level, and oil injection is prevented.
However, the existing devices have the following problems:
1. when the device normally operates, the oil in the vacuum separator is discharged by the oil discharge pump, the sealing oil system is pumped back, the electromagnetic valve for controlling oil inlet is opened when the liquid level in the vacuum separator tank is reduced to the lower limit of the liquid level controller, the electromagnetic valve for controlling oil inlet is started to feed oil when the liquid level in the vacuum tank is increased to the upper limit, and the electromagnetic valve for controlling oil inlet is closed after the liquid level in the vacuum tank is increased to the upper limit, and the oil inlet of the vacuum tank is stopped. When the electromagnetic valve is put into operation in practice, the failure rate of the electromagnetic valve is obviously increased due to long-term switching action of the electromagnetic valve, after the liquid level in the tank is increased to the high limit, the oil inlet electromagnetic valve cannot be closed in time, the oil level in the vacuum tube is too high, backflushing is caused, the oil is pumped into the vacuum pump, and finally, the oil is pumped out from the outlet of the vacuum pump, so that on-site oil injection is caused. Because the sealing oil system and the main engine lubricating oil system are communicated and run, the oil injection leakage of the sealing oil can finally cause the rapid drop of the oil level of the main oil tank, thereby seriously threatening the running safety of the unit.
2. The vacuum separator has no liquid level display, operators cannot determine the liquid level fluctuation condition and atomization effect of the vacuum tank during operation, and cannot adjust the operation working condition in time, so that the equipment can be maintained to run safely and stably.
Disclosure of Invention
The utility model aims to overcome the defects that in the prior art, the failure rate of an electromagnetic valve is obviously increased due to long-term opening and closing action of the electromagnetic valve, and after the liquid level in a vacuum tank is increased to the upper limit, an oil inlet electromagnetic valve cannot be closed in time, so that the oil level in the vacuum tank is too high, backflushing is caused, and on-site oil injection is caused.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a steam turbine seal oil vacuum oil purification device, includes oil feed pipeline, vacuum separator, oil outlet pipeline and the oil drain pump that connects gradually, vacuum separator includes vacuum tank and mechanical type liquid level controller, mechanical type liquid level controller intercommunication oil feed pipeline, mechanical type liquid level controller sets up in the vacuum tank, mechanical type liquid level controller is located the preset liquid level department in the vacuum tank.
Preferably, the mechanical liquid level controller is a float type liquid level controller.
Preferably, the float type liquid level controller comprises a valve body and a float, wherein the valve body is communicated with the oil inlet pipeline, and the float is connected with the valve body.
Preferably, the float is of spherical configuration.
Preferably, an observation hole is formed in the wall of the vacuum tank, and the observation hole is sealed through a transparent material.
Preferably, the observation hole is located at a preset liquid level of the vacuum tank.
Preferably, the oil inlet pipeline is provided with a manual control valve, and the manual control valve is communicated with the oil inlet pipeline.
Preferably, the input end of the manual control valve is communicated with the oil inlet of the oil inlet pipeline, and the output end of the manual control valve is communicated with the oil inlet of the mechanical liquid level controller.
Preferably, the vacuum separator further comprises a pressure detecting member connected to the vacuum tank.
Preferably, the pressure detecting member is a pressure vacuum gauge.
Compared with the prior art, the utility model has the following advantages:
1. according to the scheme, oil is conveyed into the vacuum tank through the oil inlet pipeline, when the liquid level of the oil in the vacuum tank is higher than a preset liquid level, the oil inlet amount of the oil inlet pipeline is reduced through adjustment of the mechanical liquid level controller, and therefore the liquid level of the oil in the vacuum tank is reduced; when the liquid level of the oil in the vacuum tank is lower than the preset liquid level, the oil inlet amount of the oil inlet pipeline is reduced through the adjustment of the mechanical liquid level controller, so that the liquid level of the oil in the vacuum tank is raised, and the liquid level of the oil is maintained in a preset range. The oil level control device has the advantages that the oil level control mode of the mechanical liquid level controller is adopted, the oil level control stability of the vacuum separator is improved, the problem of oil injection caused by faults due to unstable oil inlet electromagnetic valves is avoided, and the running stability and safety of the whole unit are improved.
2. In this scheme, the staff can look over the action condition of the liquid level of oil and float in the vacuum tank through the observation hole in real time, and the staff can in time adjust the operating mode of vacuum oil purification device through real-time feedback, has further improved the operating stability and the security of device.
3. According to the scheme, the manual control valve is arranged on the oil inlet pipeline, a worker can manually adjust the oil inlet amount of the vacuum tank through the manual control valve, and the observation result through the observation hole is combined, so that the action frequency of a floater in the floater type liquid level controller is reduced, the service life of the floater type liquid level controller is prolonged, and the normal operation of the system is maintained through the manual control valve under the accident state that the floater is jammed and the like, so that the adaptability of the device is improved.
Drawings
FIG. 1 is a schematic diagram of a vacuum oil purifying device for sealing oil of a steam turbine;
in the figure: 1. the device comprises an oil inlet pipeline 2, a vacuum separator 3, an oil outlet pipeline 4, an oil discharge pump 5, a manual control valve 6, a pressure detection part 21, a vacuum tank 22, a mechanical liquid level controller 2101, an observation hole 2201, a valve body 2202 and a floater.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.
It should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Example 1
As shown in fig. 1, the embodiment provides a turbine seal oil vacuum oil purifying device, which comprises an oil inlet pipeline 1, a vacuum separator 2, an oil outlet pipeline 3 and an oil discharge pump 4 which are sequentially connected, wherein the vacuum separator 2 comprises a vacuum tank 21 and a mechanical liquid level controller 22, the mechanical liquid level controller 22 is communicated with the oil inlet pipeline 1, the mechanical liquid level controller 22 is arranged in the vacuum tank 21, and the mechanical liquid level controller 22 is positioned at a preset liquid level position in the vacuum tank 21.
Working principle: oil is conveyed into the vacuum tank 21 through the oil inlet pipeline 1, and when the liquid level of the oil in the vacuum tank 21 is higher than a preset liquid level, the oil inlet amount of the oil inlet pipeline 1 is reduced through adjustment of the mechanical liquid level controller 22, so that the liquid level of the oil in the vacuum tank 21 is reduced; when the level of the oil in the vacuum tank 21 is lower than the preset level, the amount of oil fed into the oil feed line 1 is reduced by the mechanical level controller 22, thereby raising the level of the oil in the vacuum tank 21 to maintain the level of the oil within the preset range.
In the scheme, oil is conveyed into a vacuum tank 21 through an oil inlet pipeline 1, and when the liquid level of the oil in the vacuum tank 21 is higher than a preset liquid level, the oil inlet amount of the oil inlet pipeline 1 is reduced through adjustment of a mechanical liquid level controller 22, so that the liquid level of the oil in the vacuum tank 21 is reduced; when the level of the oil in the vacuum tank 21 is lower than the preset level, the amount of oil fed into the oil feed line 1 is reduced by the mechanical level controller 22, thereby raising the level of the oil in the vacuum tank 21 to maintain the level of the oil within the preset range. The oil level control method of the mechanical liquid level controller 22 improves the stability of oil level control of the vacuum separator, avoids the problem of oil injection caused by failure of an oil inlet electromagnetic valve, and improves the stability and safety of operation of the whole unit.
As a preferred embodiment, the mechanical level controller 22 is a float-type level controller.
Specifically, the float-type liquid level controller includes a valve body 2201 and a float 2202, the valve body 2201 is communicated with an oil inlet pipeline 1, and the float 2202 is connected with the valve body 2201. The float 2202 has a spherical structure.
The spherical float 2202 fluctuates along with the liquid level of the oil in the vacuum tank, when the liquid level rises above a preset liquid level, the float 2202 rises along with the liquid level, and meanwhile, the float 2202 adjusts and reduces the flow of the valve body 2201, reduces the oil inlet amount of the vacuum tank 21, and accordingly reduces the liquid level of the oil in the vacuum tank 21; when the subsurface drops below the preset level, the float 2202 drops following the liquid surface, the float 2022 adjusts the flow rate that increases the valve body 2201, increases the amount of oil intake, and increases the liquid surface, thereby achieving dynamic adjustment of the liquid level in the vacuum tank 21 and being in dynamic balance.
As a preferred embodiment, the tank wall of the vacuum tank 21 is provided with an observation hole 2101, and the observation hole 2101 is sealed with a transparent material. The observation hole 2101 is located at a preset liquid level of the vacuum tank 21.
The staff can look over the action condition of the liquid level of the interior oil of vacuum jar of observation hole and float in real time, and the staff can in time adjust the operating mode of vacuum oil purification device through real-time feedback, has further improved the operating stability and the security of device.
As a preferred embodiment, the oil inlet pipeline 1 is provided with a manual control valve 5, and the manual control valve 5 is communicated with the oil inlet pipeline 1. The input end of the manual control valve 5 is communicated with the oil inlet of the oil inlet pipeline 1, and the output end is communicated with the oil inlet of the mechanical liquid level controller 22.
The manual control valve is arranged on the oil inlet pipeline, a worker can manually adjust the oil inlet amount of the vacuum tank through the manual control valve, and the observation result through the observation hole is combined, so that the action frequency of a floater in the floater type liquid level controller is reduced, the service life of the floater type liquid level controller is prolonged, and the normal operation of the system is maintained under the accident state that the floater is jammed and the like through the manual control valve, so that the adaptability of the device is improved.
Specifically, the vacuum separator 2 further includes a pressure detecting member 6, and the pressure detecting member 6 is connected to the vacuum tank 21. The pressure detecting member 6 is a pressure vacuum gauge.
The pressure in the vacuum tank 21 is greatly different from the pressure in the external environment, and the pressure detection part 6 is arranged on the vacuum tank to detect the internal pressure of the vacuum tank, so that the safety of the device in the running process of the system is ensured.
In combination with the above preferred embodiments, the present embodiment provides a preferred embodiment, and in particular:
firstly, the vacuum separator 2 adopts a stable mechanical liquid level controller 22, when the oil level in the vacuum tank 21 rises to the high limit or falls to the low limit, the opening degree of the valve body 2201 is controlled by floating the float 2202 of the mechanical liquid level controller 22 up and down, so that the oil inlet amount of the vacuum tank 21 is controlled within a safe range, the recoil caused by the over-high oil level due to the failure of the oil inlet electromagnetic valve is effectively avoided, and the oil injection accident is eliminated.
Secondly, the observation hole 2101 is arranged at the mechanical liquid level controller 22 of the vacuum separator 2, so that the action condition of the liquid level and the float 2202 can be checked in real time, the operation condition can be adjusted in time by an operator according to real-time feedback, and the safe and stable operation of the unit is ensured.
The manual control valve 5 is arranged on the oil inlet pipeline 1, and operators can properly adjust the oil inlet amount according to the atomization condition of the vacuum separator 2 and the action frequency of the float 2202, so that the action frequency of the float 2202 of the mechanical liquid level controller 22 is reduced, the failure rate is reduced, the service life is prolonged, and the safe and stable operation of equipment is ensured. And if the mechanical liquid level controller 22 fails to close due to mechanical jamming and the like, an operator can control the liquid level of the vacuum separator within a normal range by adjusting the oil inlet manual door, so that backflushing oil injection is avoided, and the normal operation of the device is ensured.
Finally, a pressure vacuum gauge is arranged above the vacuum tank 21, and the internal pressure of the vacuum separator 2 is monitored in real time, so that the safe operation of the device is ensured.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides a steam turbine seal oil vacuum oil purification device, includes oil feed pipeline (1), vacuum separator (2), play oil pipe way (3) and oil drain pump (4) that connect gradually, its characterized in that, vacuum separator (2) are including vacuum tank (21) and mechanical type liquid level controller (22), mechanical type liquid level controller (22) intercommunication oil feed pipeline (1), mechanical type liquid level controller (22) set up in vacuum tank (21), mechanical type liquid level controller (22) are located the preset liquid level department in vacuum tank (21).
2. The turbine seal oil vacuum oil cleaning apparatus of claim 1, wherein the mechanical fluid level controller (22) is a float fluid level controller.
3. The turbine seal oil vacuum oil cleaning device according to claim 2, wherein the float type liquid level controller comprises a valve body (2201) and a float (2202), the valve body (2201) is communicated with an oil inlet pipeline (1), and the float (2202) is connected with the valve body (2201).
4. A turbine seal oil vacuum oil cleaning apparatus according to claim 3, wherein said float (2202) has a spherical structure.
5. The turbine seal oil vacuum oil cleaning device according to claim 1, wherein an observation hole (2101) is arranged on a tank wall of the vacuum tank (21), and the observation hole (2101) is sealed by a transparent material.
6. The turbine seal oil vacuum oil cleaning device according to claim 5, wherein the observation hole (2101) is located at a preset liquid level of the vacuum tank (21).
7. The steam turbine sealing oil vacuum oil purifying device according to claim 1, wherein the oil inlet pipeline (1) is provided with a manual control valve (5), and the manual control valve (5) is communicated with the oil inlet pipeline (1).
8. The turbine seal oil vacuum oil purifying device according to claim 7, wherein the input end of the manual control valve (5) is communicated with the oil inlet of the oil inlet pipeline (1), and the output end is communicated with the oil inlet of the mechanical liquid level controller (22).
9. A turbine seal oil vacuum oil cleaning device according to claim 1, characterized in that the vacuum separator (2) further comprises a pressure detecting member (6), the pressure detecting member (6) being connected to a vacuum tank (21).
10. A turbine seal oil vacuum oil cleaning device according to claim 9, characterized in that the pressure detecting element (6) is a pressure vacuum gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321357118.0U CN220186541U (en) | 2023-05-31 | 2023-05-31 | Vacuum oil purifying device for sealing oil of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321357118.0U CN220186541U (en) | 2023-05-31 | 2023-05-31 | Vacuum oil purifying device for sealing oil of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220186541U true CN220186541U (en) | 2023-12-15 |
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ID=89109499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321357118.0U Active CN220186541U (en) | 2023-05-31 | 2023-05-31 | Vacuum oil purifying device for sealing oil of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220186541U (en) |
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2023
- 2023-05-31 CN CN202321357118.0U patent/CN220186541U/en active Active
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