CN218912980U - Lubricating oil system of steam turbine - Google Patents
Lubricating oil system of steam turbine Download PDFInfo
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- CN218912980U CN218912980U CN202223409892.XU CN202223409892U CN218912980U CN 218912980 U CN218912980 U CN 218912980U CN 202223409892 U CN202223409892 U CN 202223409892U CN 218912980 U CN218912980 U CN 218912980U
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Abstract
The utility model relates to the field of bearing lubrication, and aims to solve the problems that in the prior art, control oil is not clean enough, the service life of a steam turbine is short, and the system flow cannot adapt to load requirements, and provides a steam turbine lubricating oil system. The utility model has the advantages that the flow rate of the system can be self-adaptive to the load demand, the filtered control oil is clean enough, and the service life of the steam turbine is effectively prolonged.
Description
Technical Field
The utility model relates to the field of bearing lubrication, in particular to a turbine lubricating oil system.
Background
The steam turbine is a rotary machine which takes steam as power and converts heat energy of the steam into mechanical work, the service life of the steam turbine and accessories thereof depends on the characteristics of lubricating oil, continuous, reliable and sufficient lubricating oil needs to be provided at all operating points during starting, normal operation and stopping, proper oil pressure and oil temperature have good lubricant performance, a steam turbine is not provided with a separate lubricating oil station, a lubricating oil system provides lubricating oil for the steam turbine, a generator, a jigger device and the like, and a control oil system provides filtered and clean control oil for hydraulic driving equipment of the steam turbine at proper temperature and pressure.
Therefore, prolonging the service life of the steam turbine becomes a problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims to provide a turbine lubricating oil system to solve the problems that in the prior art, control oil is not clean enough, the service life of a turbine is short, and the flow of the system cannot adapt to the load demand.
Embodiments of the present utility model are implemented as follows:
the embodiment of the utility model provides a turbine lubricating oil system, which comprises an oil tank;
the upper part of the oil tank is provided with a lubrication system, an oil-gas separation system and a control oil system, one end of the lubrication system is connected with the oil tank in a submerged mode, the oil-gas separation system is fixedly connected with the top surface of the oil tank, and the lubrication system is connected with the control oil system through a pipeline;
the lubricating system is provided with a lubricating main oil pump device and a lubricating auxiliary oil pump device, wherein the lubricating main oil pump device and the lubricating auxiliary oil pump device are immersed in the oil tank and are fixed on the top surface of the oil tank, the outlet ends of the lubricating main oil pump device and the lubricating auxiliary oil pump device are mutually connected in parallel, one end after the parallel connection is connected with a lubricating oil accumulator device, the other end after the parallel connection is sequentially connected with a duplex cooler, a three-way temperature control valve, a duplex filter and a self-operated pressure regulating valve in series through pipelines, and the self-operated pressure regulating valve is connected with the control oil system in series through the pipelines.
When the oil tank is used, the lubricating system, the oil-gas separation system and the control oil system are all arranged at the top of the oil tank in a concentrated mode, and concentrated control and maintenance are realized through reasonable layout; the oil in the oil tank is controlled to pass through the lubricating system through the control oil system, and clean and filtered control oil is provided for hydraulic driving equipment of the steam turbine at proper temperature and pressure.
According to the lubricating oil system for the steam turbine, the lubricating system, the oil-gas separation system and the control oil system are arranged on the oil tank, so that the lubricating oil system for the steam turbine has the beneficial effects that the system flow can adapt to the load demand, and the filtered control oil is clean enough and the service life of the steam turbine is prolonged effectively.
Optionally: the oil tank device is provided with an electric heater, a temperature sensor, a liquid level sensor and a pressure sensor.
So set up, when the system is in operation, electric heater, temperature sensing, level sensor and pressure sensor are convenient for carry out the interlocking monitoring to oil temperature, oil level and oil pressure respectively.
Optionally: the outlets of the main lubricating oil pump device and the auxiliary lubricating oil pump device are respectively provided with a first pressure switch and a second pressure switch.
By means of the arrangement, whether the pressure is normal after the lubrication main oil pump device and the lubrication auxiliary oil pump device are operated or not can be detected through the first pressure switch and the second pressure switch.
Optionally: and the parallel outlets of the main lubricating oil pump and the auxiliary lubricating oil pump are respectively connected with the inlet of the duplex cooler and the hot end of the three-way temperature control valve, and the outlet of the duplex cooler is connected with the cold end of the three-way temperature control valve.
Optionally: the double-connected cooler is formed by connecting two coolers in parallel and comprises a first switching valve, wherein the first switching valve is arranged at the middle position of the two coolers; the inlet and outlet of the duplex cooler are provided with temperature sensors.
When one cooler fails, the device can be switched to the other cooler on line to continue to work normally without stopping and maintaining, so that the normal operation of the whole system is ensured, and the temperature sensor can detect the inlet and outlet oil temperatures of the duplex cooler.
Optionally: a temperature control valve pore plate is connected in series in front of the hot end inlet of the three-way temperature control valve.
The reasonable use of the temperature control valve orifice plate has obvious effects on the overall stability and economy of the system, the temperature control valve orifice plate is connected with the three-way temperature control valve in series, so that a flow field can be balanced, vortex, vibration and noise are reduced, and the stability of the flow field is improved.
Optionally: the three-way temperature control valve is connected to the duplex filter through a pipeline, the duplex filter is provided with a second switching valve and two filters connected in parallel, the second switching valve is arranged at the middle position of the two filters, the second switching valve is formed by connecting the two filters connected in parallel, and the inlet and the outlet of the filters are connected with a differential pressure transmitter.
So set up, when the trouble was appeared in above-mentioned filter, but on-line switch to another above-mentioned filter continue normal work, need not to shut down and maintain, guarantee entire system's normal operating, and above-mentioned differential pressure transmitter can be according to above-mentioned filter inlet and outlet pressure value judges whether the filter core of above-mentioned filter is blockked up, the timely change or the maintenance of staff of being convenient for.
Optionally: the duplex filter is connected to the self-operated pressure regulating valve through a pipeline, the self-operated pressure regulating valve is connected in parallel with a pressure regulating valve orifice plate, one end of the pressure regulating valve orifice plate is connected with an inlet of the self-operated pressure regulating valve, and the other end of the pressure regulating valve orifice plate is connected with an outlet of the self-operated pressure regulating valve.
The pressure regulating valve orifice plate is connected with the self-operated pressure regulating valve in parallel, so that the fluid flow can be shared, the flow of the fluid flowing through the pressure regulating valve can be reduced, the caliber of the pressure regulating valve can be reduced, and the cost of the self-operated pressure regulating valve can be reduced.
Optionally: the lubrication system further comprises a lubrication accident pump device immersed in the oil tank and fixed on the top surface of the oil tank;
and a third pressure switch is arranged at the outlet of the lubricating accident pump device and is connected with the outlet of the self-operated pressure regulating valve through a pipeline.
The device is arranged in such a way, whether the pressure is normal after the operation of the lubrication accident pump device can be detected through the third pressure switch, and meanwhile, when the lubrication accident pump device cannot be started after the power failure of the lubrication main oil pump device is stopped, the lubrication accident pump device can supply oil to all lubrication points in an emergency mode, and the idle rotation oil of the unit is ensured until the unit is stopped safely.
Optionally: the control oil system is provided with a motor, a high-pressure oil pump, a double-cylinder filter, a fourth pressure switch, an overflow valve, a one-way valve and a throttle valve, wherein the motor is electrically connected with the high-pressure oil pump, and the high-pressure oil pump, the double-cylinder filter, the fourth pressure switch, the overflow valve, the one-way valve and the throttle valve are all connected in series through pipelines.
The control oil system provides clean and filtered control oil for hydraulic driving equipment of the steam turbine at proper temperature and pressure, the oil passes through the high-pressure oil pump to work, the oil pressure of an outlet of the high-pressure oil pump is 20.0MPa, and the pressure oil enters the integrated control block through the double-cylinder filter to be distributed to bearings of each phase, so that the control purpose is realized. The oil quantity and pressure of the bearing can be controlled by adjusting the overflow valve, the one-way valve and the throttle valve of the integrated control block, so that the jacking height of the journal is in a reasonable range (theoretical calculation, the jacking pressure is 10MPa, and the jacking height is more than 0.02 mm). The safety pressure of the outlet of the high-pressure oil pump is set and controlled by the fourth pressure switch.
By combining the description, the lubricating oil system for the steam turbine has the advantages that the system flow can be self-adaptive to the load demand, the filtered control oil is clean enough, and the service life of the steam turbine is prolonged effectively.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a PID flow chart of a turbine lubrication oil system in accordance with an embodiment of the utility model.
Icon: 1-oil tank, 2-lubrication system, 3-oil-gas separation system, 4-control oil system, 5-pipeline, 6-lubrication main oil pump device, 7-lubrication auxiliary oil pump device, 8-lubrication oil accumulator device, 9-duplex cooler, 10-three-way temperature control valve, 11-duplex filter, 12-self-operated pressure regulating valve, 13-first pressure switch, 14-second pressure switch, 15-cooler, 16-first switching valve, 17-temperature sensor, 18-temperature control valve orifice plate, 19-second switching valve, 20-filter, 21-differential pressure transmitter, 22-pressure regulating valve orifice plate, 23-lubrication accident pump device, 24-third pressure switch, 25-motor, 26-high pressure oil pump, 27-duplex filter, 28-fourth pressure switch, 29-overflow valve, 30-check valve, 31-throttle valve, 32-temperature transmitter, 33-pneumatic regulating valve, 34-positioner, 35-fan, 36-separator.
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.
Examples
Referring to fig. 1, the present embodiment proposes a turbine lubrication oil system including an oil tank 1;
the upper part of the oil tank 1 is provided with a lubrication system 2, an oil-gas separation system 3 and a control oil system 4, one end of the lubrication system 2 is connected with the oil tank 1 in a submerged mode, the oil-gas separation system 3 is fixedly connected to the top surface of the oil tank 1, and the lubrication system 2 is connected with the control oil system 4 through a pipeline 5;
the lubrication system 2 is provided with a lubrication main oil pump device 6 and a lubrication auxiliary oil pump device 7, the lubrication main oil pump device 6 and the lubrication auxiliary oil pump device 7 are immersed in the oil tank 1 and fixed on the top surface of the oil tank 1, the outlet ends of the lubrication main oil pump device 6 and the lubrication auxiliary oil pump device 7 are mutually connected in parallel, one end after the parallel connection is connected with a lubrication oil accumulator device 8, the other end after the parallel connection is sequentially connected in series with a duplex cooler 9, a three-way temperature control valve 10, a duplex filter 11 and a self-operated pressure regulating valve 12 through a pipeline 5, and the self-operated pressure regulating valve 12 is connected in series with the oil system 4 through the pipeline 5.
When in use, the lubrication system 2, the oil-gas separation system and the control oil system 4 are all arranged on the top of the oil tank 1 in a concentrated manner, and concentrated control and maintenance are realized through reasonable layout; the oil in the oil tank 1 is controlled to pass through the lubricating system 2 by the control oil system 4, and clean and filtered control oil is provided for hydraulic driving equipment of the steam turbine at proper temperature and pressure.
According to the turbine lubricating oil system disclosed by the embodiment, as the lubricating system 2, the oil-gas separation system and the control oil system 4 are arranged on the oil tank 1, the turbine lubricating oil system has the beneficial effects that the system flow can adapt to the load demand, the filtered control oil is clean enough and the service life of the turbine is prolonged effectively.
In this embodiment, the lubricating oil accumulator device 8 is similar to a hydraulic spring in nature, and automatically stores a part of the lubricating oil with pressure in the leather bag when the lubricating oil accumulator device is not in operation at ordinary times, and the accumulator releases the stored oil to supplement the oil supply flow of the lubricating oil system when the pressure of the pipeline 5 is reduced. In an accident state, the main lubrication alternating-current oil pump is ensured to be switched to the direct-current oil pump without faults, and low oil pressure tripping is ensured not to occur in the process.
In this embodiment, the control oil system 4 plays a role in jacking up the rotor during turning, starting and stopping of the turbine unit.
Referring to fig. 1, the oil tank 1 is provided with an electric heater, a temperature sensor, a liquid level sensor and a pressure sensor (not shown in the figure), which are convenient for respectively carrying out interlocking monitoring on the oil temperature, the oil level and the oil pressure when the system is in operation.
The outlets of the main lubricating oil pump device 6 and the auxiliary lubricating oil pump device 7 are respectively provided with a first pressure switch 13 and a second pressure switch 14, and whether the pressures of the main lubricating oil pump device 6 and the auxiliary lubricating oil pump device 7 are normal after operation can be respectively detected through the first pressure switch 13 and the second pressure switch 14.
Referring to fig. 1, parallel outlets of the main lubricating oil pump and the auxiliary lubricating oil pump are respectively connected with an inlet of the duplex cooler 9 and a hot end of the three-way temperature control valve 10, and an outlet of the duplex cooler 9 is connected with a cold end of the three-way temperature control valve 10.
The duplex cooler 9 is formed by connecting two coolers 15 in parallel and comprises a first switching valve 16, and the first switching valve 16 is arranged at the middle position of the two coolers 15; the inlet and outlet of the duplex cooler 9 are provided with temperature sensors 17, when one cooler 15 fails, the other cooler 15 can be switched on line to continue to work normally without stopping maintenance, the normal operation of the whole system is ensured, and the temperature sensors 17 can detect the inlet and outlet oil temperature of the duplex cooler 9.
The temperature control valve orifice plate 18 is connected in series before the hot end inlet of the three-way temperature control valve 10, the reasonable use of the temperature control valve orifice plate 18 has remarkable effects on the stability and economy of the whole system, the temperature control valve orifice plate 18 is connected in series with the three-way temperature control valve 10, a flow field can be balanced, vortex, vibration and noise are reduced, and the stability of the flow field is improved.
In this embodiment, the temperature control valve orifice plate 18 is used to balance the differential pressure between the cold and hot fluids, so as to prevent the pressure of the hot fluid and the cold fluid from being uneven, and easily make the hot end of the cavity of the three-way temperature control valve 10 flow to the cold end (usually, the high-pressure hot end fluid flows to the low-pressure cold end).
The three-way temperature control valve 10 is connected to the duplex filter 11 through the pipeline 5, the duplex filter 11 is provided with a second switching valve 19 and two filters 20 which are connected in parallel, the second switching valve 19 is arranged at the middle position of the two filters 20, the second switching valve 19 is connected with the two filters 20 which are connected in parallel, the inlet and outlet of the filter 20 are connected with a differential pressure transmitter 21, when one filter 20 fails, the other filter 20 can be switched on line to continue to work normally without shutdown maintenance, the normal operation of the whole system is ensured, and the differential pressure transmitter 21 can judge whether the filter element of the filter 20 is blocked according to the inlet and outlet pressure value of the filter 20, so that the filter element is convenient for workers to replace or maintain in time.
Referring to fig. 1, the duplex filter 11 is connected to the self-operated pressure regulating valve 12 through a pipeline 5, the self-operated pressure regulating valve 12 is connected in parallel with a pressure regulating valve orifice plate 22, one end of the pressure regulating valve orifice plate 22 is connected with an inlet of the self-operated pressure regulating valve 12, the other end of the pressure regulating valve orifice plate 22 is connected with an outlet of the self-operated pressure regulating valve 12, the pressure regulating valve orifice plate 22 is connected in parallel with the self-operated pressure regulating valve 12, so that the fluid flow can be shared, the flow of the fluid flowing through the pressure regulating valve is reduced, the caliber of the pressure regulating valve is reduced, the cost of the self-operated pressure regulating valve 12 is reduced, and the oil flow is distributed as follows: 30% -40% of the flow passes through the self-regulating valve 12, while the remaining 60% -70% passes through the valve orifice plate 22. With this arrangement, the size of the self-operated pressure regulating valve 12 can be reduced, and the bearing can be ensured to obtain lubricating oil even if the self-operated pressure regulating valve 12 fails to be in the closed position, thereby ensuring safe operation of the unit.
In the present embodiment, the size of the opening of the pressure regulating valve orifice plate 22 needs to be designed separately: 60% -70% of the flow flows through the pressure regulating valve orifice plate 22 as a known parameter, and then the pressure difference between the front and the back of the pressure regulating valve orifice plate 22 is calculated, so that the opening size of the pressure regulating valve orifice plate 22 can be obtained, and the flow flowing through the self-operated pressure regulating valve 12 is as follows: 30% -40%, the self-operated pressure regulating valve 12 changes the flow area of the main valve port, can regulate the oil supply flow of the system, and stabilizes the oil supply pressure.
The lubrication system 2 further comprises a lubrication accident pump unit 23, the lubrication accident pump unit 23 being immersed in the oil tank 1 and being fixed on the top surface of the oil tank 1; the outlet of the lubricating accident pump device 23 is provided with a third pressure switch 24, the third pressure switch 24 is connected to the outlet of the self-operated pressure regulating valve 12 through a pipeline 5, whether the pressure is normal after the lubricating accident pump device 23 operates can be detected through the third pressure switch 24, and meanwhile, when the lubricating accident pump device 23 cannot be started when the lubricating main oil pump device 6 stops due to power failure, the lubricating accident pump device 23 can supply oil to each lubricating point in an emergency mode, and idle rotation of the unit is guaranteed until the unit is stopped safely.
The control oil system 4 is provided with a motor 25, a high-pressure oil pump 26, a double-cylinder filter 27, four fourth pressure switches 28, an overflow valve 29, a one-way valve 30 and a throttle valve 31, wherein the motor 25 is electrically connected with the high-pressure oil pump 26, the double-cylinder filter 27, the four fourth pressure switches 28, the overflow valve 29, the one-way valve 30 and the throttle valve 31 are all connected in series through a pipeline 5, the control oil system 4 supplies clean and filtered control oil to hydraulic driving equipment of a steam turbine at proper temperature and pressure, after the oil works through the high-pressure oil pump 26, the oil pressure of an outlet of the high-pressure oil pump 26 is 20.0MPa, and the pressure oil enters an integrated control block through the double-cylinder filter 27 to be distributed to each phase bearing, so that the control purpose is realized. The oil quantity and pressure of the bearing can be controlled by adjusting the overflow valve 29, the one-way valve 30 and the throttle valve 31 of the integrated control block, so that the jacking height of the journal is in a reasonable range (theoretical calculation, the jacking pressure is 10MPa, and the jacking height is more than 0.02 mm). The high-pressure oil pump 26 pumps out the safety pressure which is set and controlled by four fourth pressure switches 28.
In this embodiment, the high-pressure oil pump 26 adopts two constant-pressure variable plunger pumps, one is one, and the other is one, and the constant-pressure variable pump is adopted to control the oil supply system to work under the set constant pressure, so that the flow rate changes according to the change of the external load, and the energy is effectively saved.
In this embodiment, the temperature transmitter 32 is disposed at the outlet of the mixing end of the three-way temperature control valve 10, the three-way temperature control valve 10 is provided with the pneumatic control valve 33 and the positioner 34 outputting 4-20mA, the temperature transmitter 32 installed on the output constant temperature pipeline 5 outputs 4-20mA analog signals, the pneumatic three-way temperature control valve 10 with the positioner 34 is a conversion device converting the received 4-20mA analog signals into pressure signals, and the compressed air is used as a working air source to control the opening of the pneumatic control valve 33, so that the positioner 34 of the valve establishes a one-to-one correspondence between the valve rod displacement and the 4-20mA analog signals output by the temperature remote meter, namely, the 4mA and 20mA output by the temperature remote meter respectively correspond to the full-closed and full-open valve rod stroke, when the positioner 34 and the central controller of the valve realize the interlocking control, the valve rod stroke can be adjusted at the corresponding mA value, and finally the purpose of controlling the medium is achieved.
In this embodiment, the oil-gas separation system 3 mainly comprises two sets of fans 35 (one for each and one for each) and a set of oil-mist separator 36, and the oil-gas separation system integrates two functions of oil-mist filtration and efficient separation, so that atomized oil smoke and water vapor can be effectively removed, filtered oil liquid can be put into the oil tank 1 again for use, micro negative pressure can be maintained in the oil tank 1, and smooth return of a unit is ensured.
In the embodiment, the main lubrication oil pump device 6, the auxiliary lubrication oil pump device 7 and the accident lubrication pump device 23 are all direct-current oil pumps, and the steam turbine can still be stopped normally under the condition of alternating current power failure, so that the lubrication of equipment is ensured, and the equipment is prevented from being worn and scrapped;
the three-way temperature control valve 10, the duplex cooler 9 and the duplex filter 11 on the lubrication system 2 ensure that the pressure, the flow, the temperature, the cleanliness and the like of the lubricating oil reach the optimal working conditions.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A turbine lubrication oil system, characterized by:
comprises an oil tank;
the upper part of the oil tank is provided with a lubricating system, an oil-gas separation system and a control oil system, one end of the lubricating system is connected with the oil tank in a submerged mode, the oil-gas separation system is fixedly connected to the top surface of the oil tank, and the lubricating system is connected with the control oil system through a pipeline;
the lubricating system is provided with a lubricating main oil pump device and a lubricating auxiliary oil pump device, the lubricating main oil pump device and the lubricating auxiliary oil pump device are immersed in the oil tank and fixed on the top surface of the oil tank, the lubricating main oil pump device and the outlet end of the lubricating auxiliary oil pump device are mutually connected in parallel, one end after the parallel connection is connected with a lubricating oil accumulator device, the other end after the parallel connection is sequentially connected with a duplex cooler, a three-way temperature control valve, a duplex filter and a self-operated pressure regulating valve in series through pipelines, and the self-operated pressure regulating valve is connected with the control oil system in series through the pipelines.
2. The turbine lubrication oil system of claim 1, wherein:
the oil tank device is provided with an electric heater, a temperature sensor, a liquid level sensor and a pressure sensor.
3. The turbine lubrication oil system of claim 1, wherein:
the outlets of the lubricating main oil pump device and the lubricating auxiliary oil pump device are respectively provided with a first pressure switch and a second pressure switch.
4. The turbine lubrication oil system of claim 1, wherein:
the outlet of the lubricating main oil pump and the outlet of the lubricating auxiliary oil pump are respectively connected with the inlet of the duplex cooler and the hot end of the three-way temperature control valve, and the outlet of the duplex cooler is connected with the cold end of the three-way temperature control valve.
5. The turbine lubrication oil system of claim 4, wherein:
the double-connected cooler is formed by connecting two coolers in parallel and comprises a first switching valve, wherein the first switching valve is arranged at the middle position of the two coolers; and the inlet and the outlet of the duplex cooler are respectively provided with a temperature sensor.
6. The turbine lubrication oil system of claim 4, wherein:
a temperature control valve pore plate is connected in series in front of the hot end inlet of the three-way temperature control valve.
7. The turbine lubrication oil system of claim 4, wherein:
the three-way temperature control valve is connected to the duplex filter through a pipeline, the duplex filter is provided with a second switching valve and two filters connected in parallel, the second switching valve is arranged at the middle position of the two filters, the second switching valve is formed by mutually connecting the two filters connected in parallel, and the inlet and the outlet of the filters are connected with a differential pressure transmitter.
8. The turbine lubrication oil system of claim 1, wherein:
the duplex filter is connected to the self-operated pressure regulating valve through a pipeline, the self-operated pressure regulating valve is connected with a pressure regulating valve orifice plate in parallel, one end of the pressure regulating valve orifice plate is connected with an inlet of the self-operated pressure regulating valve, and the other end of the pressure regulating valve orifice plate is connected with an outlet of the self-operated pressure regulating valve.
9. The turbine lubrication oil system of claim 1, wherein:
the lubrication system further comprises a lubrication accident pump device immersed in the oil tank and fixed on the top surface of the oil tank;
the outlet of the lubricating accident pump device is provided with a third pressure switch, and the third pressure switch is connected with the outlet of the self-operated pressure regulating valve through a pipeline.
10. The turbine lubrication oil system of claim 1, wherein:
the control oil system is provided with a motor, a high-pressure oil pump, a double-cylinder filter, a fourth pressure switch, an overflow valve, a one-way valve and a throttle valve, wherein the motor is electrically connected with the high-pressure oil pump, and the high-pressure oil pump, the double-cylinder filter, the fourth pressure switch, the overflow valve, the one-way valve and the throttle valve are all connected in series through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223409892.XU CN218912980U (en) | 2022-12-15 | 2022-12-15 | Lubricating oil system of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223409892.XU CN218912980U (en) | 2022-12-15 | 2022-12-15 | Lubricating oil system of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218912980U true CN218912980U (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223409892.XU Active CN218912980U (en) | 2022-12-15 | 2022-12-15 | Lubricating oil system of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218912980U (en) |
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2022
- 2022-12-15 CN CN202223409892.XU patent/CN218912980U/en active Active
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