CN107202241B - Phase modifier oil system - Google Patents
Phase modifier oil system Download PDFInfo
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- CN107202241B CN107202241B CN201710516417.7A CN201710516417A CN107202241B CN 107202241 B CN107202241 B CN 107202241B CN 201710516417 A CN201710516417 A CN 201710516417A CN 107202241 B CN107202241 B CN 107202241B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
- F16N7/40—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems in a closed circulation system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/02—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/04—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems enabling a warning to be given; enabling moving parts to be stopped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/04—Arrangements for conditioning of lubricants in the lubricating system by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N2039/007—Using strainers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/18—Electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2230/00—Signal processing
- F16N2230/18—Switches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2250/00—Measuring
- F16N2250/04—Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2250/00—Measuring
- F16N2250/08—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2250/00—Measuring
- F16N2250/18—Level
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a phase modulator oil system which comprises an oil tank, a phase modulator, a lubricating oil supply system, a jacking oil system and an oil fume recovery system, wherein the lubricating oil supply system and the jacking oil system are arranged between the oil tank and the phase modulator, the inlet end of the oil fume recovery system is connected with the outlet end of the phase modulator, the outlet end of the oil fume recovery system is divided into two paths, one path is connected to the oil tank, and the other path is exhausted into the air. The oil fume containing the lubricating oil is transmitted into the oil tank through the oil fume removing device after being filtered, so that the recovery rate of the lubricating oil is improved, the clean gas after being filtered is discharged into the air, the filtering effect is improved, the air pollution is prevented, the recovery rate of the lubricating oil is high, and the system can continue to work normally under the condition that main components of the system fail.
Description
The technical field is as follows:
the invention relates to the field of phase modulators, in particular to a phase modulator oil system.
Background art:
with the continuous development of power systems, in order to reduce various losses in the reciprocating transmission of power transmission lines, effectively improve the voltage level of the system, improve the stability, improve the utilization rate of power generation equipment, reduce the power loss in the power system and improve the power factor, it is necessary to arrange a certain capacity of reactive power supply equipment, namely a phase modulator, in the center or around the load to compensate the deficiency of reactive power, and improve the economic operation of the power system.
The phase modifier oil system is an important component in the phase modifier, and the existing phase modifier oil system has the following defects: 1. the oil fume released by the phase modifier directly pollutes the external environment without a special oil fume recovery system, and is not beneficial to the recovery and reuse of lubricating oil, the lubricating oil is gradually reduced in the use process of the phase modifier oil system, the lubricating oil needs to be continuously added, time and labor are wasted, and the cost is increased; 2. the existing lubricating oil supply system is simple in structure, only one lubricating pump is usually arranged, and when the lubricating oil supply system is used, once the lubricating pump goes wrong, the whole equipment needs to be stopped for maintenance, so that the lubricating oil supply system can continue to work; 3. lubricating oil in the oil tank is continuously supplied to the phase modulator, and the lubricating oil easily overflows under the condition of excessive lubricating oil, so that the external environment is polluted, and meanwhile, a part of the lubricating oil is wasted; 4. the jacking oil pump of the existing jacking oil system is only arranged singly, so that the whole equipment needs to be stopped for maintenance once the jacking oil pump has a problem in the use process, and the whole jacking oil system can continue to work, and cannot ensure the pressure balance of a phase modulator due to poor control on the pressure; 4. the structure of the oil fume recovery system is too simple, the pipeline of the existing oil fume recovery system is directly connected with the fan, but the oil fume is thick in texture and easy to adhere to the surface of the fan, the time is long, the filtering effect is reduced and even the fan is blocked, the fan cannot be normally and environmentally discharged, and the filter is usually arranged singly, so that the whole system cannot be normally used under the condition that the fan is damaged; 5. the pipelines of the whole system are many and complex, are messy and are not easy to manage, the appearance is influenced, and meanwhile, the mutual interference influence is easy to occur.
Therefore, it is desirable to provide a phase modulator oil system that has not been found to be the same or similar to the present invention upon examination.
The invention content is as follows:
the invention aims to overcome the defects and provide a phase modifier oil system, which can ensure that the system can continuously and normally work under the condition that main components of the system are out of order, improve the filtering effect, prevent air pollution and have high lubricating oil recovery rate.
The purpose of the invention is realized by the following technical scheme: a phase modulator oil system comprises an oil tank, a phase modulator, a lubricating oil supply system, a jacking oil system and an oil fume recovery system, wherein the lubricating oil supply system and the jacking oil system are arranged between the oil tank and the phase modulator, the inlet end of the oil fume recovery system is connected with the outlet end of the phase modulator, the outlet end of the oil fume recovery system is divided into two paths, one path is connected to the oil tank, and the other path is discharged into the air.
The invention is further improved in that: the oil tank is equipped with heater group, heater limit temperature switch group, oil tank liquid level changer group, heater group comprises a plurality of heater parallel connection, heater limit temperature switch group comprises a plurality of heater limit temperature switch with heater series connection in proper order respectively, oil tank liquid level changer group comprises a plurality of oil tank liquid level changer, heater group link has oil tank platinum resistance group, oil tank platinum resistance group comprises a plurality of oil tank platinum resistance parallel connection, the oil tank is equipped with oil tank vacuum transmitter simultaneously.
The invention is further improved in that: the lubricating oil supply system comprises a lubricating oil pump group, a self-checking electromagnetic valve group, a cooler group, a filter group and a lubricating oil pipeline group which are connected in sequence;
the lubricating oil pump group comprises a lubricating oil alternating-current pump I, a lubricating oil alternating-current pump II and a lubricating oil direct-current pump which are connected with an oil tank, the lubricating oil alternating-current pump I and the lubricating oil alternating-current pump II are connected with a self-checking electromagnetic valve group through a pipeline A and a pipeline B, the lubricating oil direct-current pump is connected with a lubricating oil pipeline group through a pipeline C, and a lubricating oil pump pressure switch A, a lubricating oil pump pressure switch B and a lubricating oil pump pressure switch C are respectively arranged at the outlet positions of the lubricating oil alternating-current pump I, the lubricating oil alternating-current pump II and the lubricating oil direct-current pump;
the self-checking electromagnetic valve group comprises an alternating current self-checking electromagnetic valve group connected with a lubricating oil alternating current pump I and a lubricating oil alternating current pump II and a direct current self-checking electromagnetic valve group connected with a lubricating oil direct current pump, wherein the alternating current self-checking electromagnetic valve group consists of a plurality of alternating current electromagnetic valves connected in parallel and a plurality of alternating current pump pressure switches connected in parallel, the alternating current electromagnetic valves are connected in series with the alternating current pump pressure switches correspondingly arranged, the direct current electromagnetic valve group consists of a plurality of direct current electromagnetic valves connected in parallel and a plurality of direct current pump pressure switches connected in parallel, the direct current electromagnetic valves are connected in series with the direct current pump pressure switches correspondingly arranged, and meanwhile, a cooling group and a filter group are sequentially arranged between the alternating current self-checking electromagnetic valve group and the lubricating oil pipeline group;
the cooling group is formed by connecting two coolers in parallel and comprises a temperature control valve and a cooler switching valve, the cooler switching valve is arranged in the middle of the two coolers, and the temperature control valve is arranged at the outlet end of the cooler group; the filter group comprises two filters A and B which are connected in parallel and two filter differential pressure switches A and B which are connected in parallel;
the lubricating oil pipeline group comprises a lubricating pipeline and an oil return pipeline, the lubricating pipeline comprises a lubricating pipeline A and a lubricating pipeline B, one end of the lubricating pipeline A is connected with the filter group, the other end of the lubricating pipeline A is connected with the lubricating pipeline B, one way of the lubricating pipeline B is connected with the phase modulator, the other way of the lubricating pipeline B is connected with the jigger, the oil return pipeline comprises an oil return pipeline A, an oil return pipeline B, one end of the oil return pipeline B is connected with the oil return pipeline A, the oil return pipeline A is connected with the phase modulator, and the other end of the oil return pipeline B is connected with the oil tank.
The invention is further improved in that: the jacking oil system comprises a jacking oil pump set, a jacking oil pump inlet pressure switch set, a jacking oil pump outlet pressure switch set and a jacking oil pipeline set, wherein the jacking oil pump inlet pressure switch set is arranged at the inlet position of the jacking oil pump set, the jacking oil pump outlet pressure switch set is arranged at the outlet position of the jacking oil pump set, the jacking oil pump set is connected with a pipeline C through a pipeline D, and the jacking oil pump set is connected with a phase modulator through a jacking oil pipeline;
the jacking oil pump set comprises a jacking oil alternating-current pump I, a jacking oil alternating-current pump II and a jacking oil direct-current pump, the jacking oil pump inlet pressure switch set comprises a jacking oil pump inlet pressure switch A, a jacking oil pump inlet pressure switch B and a jacking oil pump inlet pressure switch C which are respectively connected with the jacking oil alternating-current pump I, the jacking oil alternating-current pump II and the jacking oil direct-current pump, and the jacking oil pump outlet pressure switch set comprises a jacking oil pump outlet pressure switch A, a jacking oil pump outlet pressure switch B and a jacking oil pump outlet pressure switch C which are respectively connected with the jacking oil alternating-current pump I, the jacking oil alternating-current pump II and the jacking oil direct-current pump;
a jacking oil pump outlet pressure transmitter, a jacking oil pump oil outlet pressure switch group and a jacking oil pump oil outlet electromagnetic valve group are arranged at the position, close to the jacking oil pump group, of the jacking oil pipeline; the jacking oil pump oil outlet pressure switch group is formed by connecting four jacking oil pump oil outlet pressure switches in parallel, and is respectively provided with a jacking oil pump oil outlet pressure switch A, a jacking oil pump oil outlet pressure switch B, a jacking oil pump oil outlet pressure switch C and a jacking oil pump oil outlet pressure switch D; the jacking oil pump oil outlet electromagnetic valve group is formed by connecting three jacking oil pump oil outlet electromagnetic valves in parallel, namely a jacking oil pump oil outlet electromagnetic valve A, a jacking oil pump oil outlet electromagnetic valve B and a jacking oil pump oil outlet electromagnetic valve C, wherein a jacking oil pump oil outlet pressure switch A is connected with the jacking oil pump oil outlet electromagnetic valve A, a jacking oil pump oil outlet pressure switch B is connected with the jacking oil pump oil outlet electromagnetic valve B, the jacking oil pump oil outlet pressure switch C is connected with the jacking oil pump oil outlet electromagnetic valve C, a jacking oil alternating-current pump I is connected with the jacking oil pump oil outlet pressure switch C and connected to the turning gear, a jacking oil alternating-current pump II is connected with the jacking oil pump oil outlet pressure switch A and the jacking oil pump oil outlet pressure switch B and connected to the phase modulator, and a jacking oil direct-current pump is connected with the jacking oil pump oil outlet pressure switch D and connected to the phase modulator.
The invention is further improved in that: the oil smoke recovery system comprises an oil smoke main pipeline, an exhaust fan set, an oil smoke remover, an exhaust pipeline A, an exhaust pipeline B and an exhaust pipeline C;
the inlet end of the oil fume main pipeline is connected with a phase modulator, the outlet end of the oil fume main pipeline is connected with a smoke exhaust pipeline A, the smoke exhaust pipeline A is sequentially connected with an oil fume remover, a smoke exhaust inlet pressure switch, a smoke exhaust fan set and a smoke exhaust pipeline C, the lower end of the oil fume remover is connected with an oil tank through a smoke exhaust pipeline B, the inlet end of the smoke exhaust pipeline C is connected with the smoke exhaust fan set, and the outlet end of the smoke exhaust pipeline C is arranged in the outside air;
the smoke exhaust fan set consists of a smoke exhaust fan A and a smoke exhaust fan B which are connected in parallel, and a smoke exhaust electromagnetic valve A and a smoke exhaust electromagnetic valve B which are respectively connected with the smoke exhaust fan A and the smoke exhaust fan B in series;
the outlet end of the smoke exhaust pipeline C is provided with a smoke exhaust electromagnetic valve C.
The invention is further improved in that: and a lubricating oil supply port pressure transmitter is connected to the position, close to the filter group, of the lubricating pipeline A and is arranged between the pipeline C and the lubricating pipeline B.
The invention is further improved in that: and a lubricating oil supply port platinum thermal resistor group is connected to the position, close to the filter group, of the lubricating pipeline A, is arranged between the pipeline C and the lubricating pipeline B, and is formed by connecting two lubricating oil supply port platinum thermal resistors in parallel.
Compared with the prior art, the invention has the following advantages:
1. the inlet end of the oil fume recovery system is connected with the outlet end of the phase modulator, the outlet end of the oil fume recovery system is divided into two paths, one path is connected to the oil tank, the other path is discharged into the air, the oil fume containing lubricating oil passes through the oil fume remover, the filtered oil is transmitted into the oil tank, the recovery rate of the lubricating oil is improved, the filtered clean gas is discharged into the air, the filtering effect is improved, and air pollution is prevented.
2. The oil tank platinum thermal resistor is used for controlling an oil tank heater, starting the heater when the temperature is lower than 10 ℃, stopping the heater when the temperature is higher than 35 ℃, and alarming by a heater limit switch and stopping the group of heaters when the oil temperature at the edge of any heater exceeds 120 ℃; the oil tank liquid level changer is when limit liquid level L =1, the control box of being connected with the oil tank reports to the police, and send out signal to DCS, by DCS control delay and stop lubricating oil feeding system and continue the fuel feeding, when low liquid level L =2, the control box of being connected with the oil tank reports to the police, and send out and refuel the instruction, make the oil tank liquid level arrange in between low operation liquid level and the high operation liquid level, when high liquid level L =3, the control box of being connected with the oil tank reports to the police, and send out signal to DCS, stop by DCS control and refuel instruction or oil extraction instruction to the oil storage tank.
3. The lubricating oil alternating-current pump, the cooler and the filter of the lubricating oil supply system are respectively provided with two lubricating oil alternating-current pumps, when one of the lubricating oil alternating-current pumps fails, the other lubricating oil alternating-current pump can be switched to the other lubricating oil alternating-current pump to continue normal work, shutdown maintenance is not needed, normal operation of the whole system is guaranteed, the lubricating oil direct-current pump is additionally arranged, emergency use can be conducted under the condition that the two lubricating oil alternating-current pumps all fail, oil supply is continued, normal operation of the system is guaranteed, and use efficiency is improved.
And a lubricating oil pump pressure switch A, a lubricating oil pump pressure switch B and a lubricating oil pump pressure switch C are respectively arranged at the outlet positions of the lubricating oil pump group, and whether the lubricating oil AC-flow pump I, the lubricating oil AC-flow pump II and the lubricating oil DC-flow pump operate normally after being started is respectively monitored.
The cooler is arranged in front of the filter, in order to promote the lubricating oil to flow well, the lubricating oil is in a heating state in the oil tank, when the lubricating oil enters the filter, if the temperature is too high, the common filter screen is easy to damage at high temperature, and therefore the lubricating oil needs to be cooled by the cooler and then filtered. And the filter differential pressure switch A and the filter differential pressure switch B give an alarm when the filter is blocked, so that the normal operation of a lubricating oil supply system is ensured.
The lubricating oil pipeline group comprises a lubricating pipeline and an oil return pipeline, if more lubricating oil is supplied to the phase modulator, the phase modulator is added with the oil return pipeline to return the excessive lubricating oil to the oil tank, so that the periphery of the camera is prevented from being polluted, and the recycling rate of the lubricating oil is improved.
4. The jacking oil pumps of the jacking oil system are three, two of the jacking oil pumps are jacking oil alternating-current pumps, one of the jacking oil alternating-current pumps is a jacking oil direct-current pump, when one of the jacking oil alternating-current pumps fails, the other jacking oil alternating-current pump continues to work as a backup pump, when the two jacking oil alternating-current pumps all fail, the jacking oil direct-current pump continues to work as the backup pump, and normal operation of the jacking oil system is guaranteed.
Jacking oil pump entry pressure switch group and jacking oil pump outlet pressure switch group set up to jacking oil pump entrance and exit monitoring operation whether normal, and jacking oil pump entry pressure switch group, jacking oil pump outlet pressure switch group correspond the setting in proper order with jacking oil pump group, guarantee that monitoring is not disturbed each other.
5. The smoke exhaust fan unit comprises two smoke exhaust fans A and two smoke exhaust fans B which are connected in parallel, and two smoke exhaust electromagnetic valves A and two smoke exhaust electromagnetic valves B which are respectively connected with the smoke exhaust fans A and the smoke exhaust fans B in series, wherein under the condition that one smoke exhaust fan is out of order, the other smoke exhaust fan continues to work normally, and zero pollution emission of gas in the smoke exhaust recovery system is guaranteed.
And the outlet end of the smoke exhaust pipeline C is provided with a smoke exhaust electromagnetic valve C for automatically controlling the emission of gas.
Description of the drawings:
fig. 1 is a schematic structural diagram of a phase modifier oil system according to the present invention.
Fig. 2 is a schematic diagram of a lubricating oil supply system of a phase modulation oil system according to the present invention.
Fig. 3 is a schematic structural diagram of a jacking oil system of a phase modifier oil system.
Fig. 4 is a schematic structural diagram of an oil fume recovery system of a phase modulator oil system according to the present invention.
Reference numbers in the figures: 1-oil tank, 2-phase modulator, 3-heater, 4-heater limit switch, 5-oil tank liquid level transmitter, 6-oil tank platinum thermal resistor, 7-oil tank vacuum transmitter, 8-lubricating oil AC pump I, 9-lubricating oil AC pump II, 10-lubricating oil DC pump, 11-pipeline A, 12-pipeline B, 13-pipeline C, 14-lubricating oil pump pressure switch A, 15-lubricating oil pump pressure switch B, 16-lubricating oil pump pressure switch C, 17-AC solenoid valve, 18-AC pump pressure switch, 19-DC solenoid valve, 20-DC pump pressure switch, 21-cooler, 22-filter A, 23-filter B, 24-filter differential pressure switch A, 25-filter differential pressure switch B26-lubricating pipeline A, 27-lubricating pipeline B, 28-oil return pipeline A, 29-oil return pipeline B, 30-lubricating oil supply port pressure transmitter, 31-lubricating oil supply port platinum thermal resistor, 32-pipeline D, 33-jacking oil pipeline, 34-jacking oil AC pump I, 35-jacking oil AC pump II, 36-jacking oil DC pump, 37-jacking oil pump inlet pressure switch A, 38-jacking oil pump inlet pressure switch B, 39-jacking oil pump inlet pressure switch C, 40-jacking oil pump outlet pressure switch A, 41-jacking oil pump outlet pressure switch B, 42-jacking oil pump outlet pressure switch C, 43-jacking oil pump outlet pressure transmitter, 44-jacking oil pump outlet pressure switch A, 28-oil return pipeline A, 29-oil return pipeline B, 30-lubricating oil supply port pressure transmitter, 31-lubricating oil supply port platinum thermal resistor, 32-pipeline D, 33-jacking oil AC pump outlet pressure switch B, 40-jacking oil DC pump outlet pressure switch A, 41-jacking oil DC pump outlet pressure switch B, 42-jacking oil pump outlet pressure switch C, 43-jacking oil pump outlet pressure switch A, 44-jacking oil pump outlet pressure switch A, 25-jacking oil pump outlet pressure switch B, 32-jacking oil pump outlet pressure switch C, 40-jacking oil pump pressure switch B, 40-jacking oil pump outlet pressure switch C, 40-jacking oil pump outlet pressure switch B, 36-jacking oil pump pressure switch C, and pressure switch B, 45-jacking oil pump oil outlet pressure switch B, 46-jacking oil pump oil outlet pressure switch C, 47-jacking oil pump oil outlet pressure switch D, 48-jacking oil pump oil outlet electromagnetic valve A, 49-jacking oil pump oil outlet electromagnetic valve B, 50-jacking oil pump oil outlet electromagnetic valve C, 51-oil smoke main pipeline, 52-smoke exhaust pipeline A, 53-smoke exhaust pipeline B, 54-smoke exhaust pipeline C, 55-smoke exhaust fan A, 56-smoke exhaust fan B, 57-smoke exhaust electromagnetic valve A, 58-smoke exhaust electromagnetic valve B, 59-smoke exhaust electromagnetic valve C, 60-smoke exhaust inlet pressure switch, 61-oil smoke remover, 62-temperature control valve and 63-cooler switching valve.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
The phase modulator oil system of the embodiment is shown in figure 1 and comprises an oil tank 1, a phase modulator 2, a lubricating oil supply system, a jacking oil system and an oil fume recovery system, wherein the lubricating oil supply system and the jacking oil system are arranged between the oil tank 1 and the phase modulator 2, the inlet end of the oil fume recovery system is connected with the outlet end of the phase modulator 2, the outlet end of the oil fume recovery system is divided into two paths, one path is connected to the oil tank 1, and the other path is exhausted into the air.
The oil tank is equipped with heater group, heater limit temperature switch group, oil tank liquid level changer group, heater group comprises a plurality of heater 3 parallel connection, heater limit temperature switch group comprises a plurality of heater limit temperature switch 4 with heater 3 series connection in proper order respectively, oil tank liquid level changer group comprises a plurality of oil tank liquid level changer 5, heater group link has oil tank platinum resistance group, oil tank platinum resistance group comprises a plurality of oil tank platinum resistance 6 parallel connection, oil tank 1 is equipped with oil tank vacuum transmitter 7 simultaneously. The oil tank platinum thermal resistor 6 is used for controlling an oil tank heater, starting the heater 3 when the temperature is lower than 10 ℃, stopping the heater 3 when the temperature is higher than 35 ℃, and when the oil temperature at the edge of any heater 3 exceeds 120 ℃, the heater limit switch 4 gives an alarm and stops the group of heaters 3; oil tank liquid level changer 5 is when limit liquid level L =1, the control box of being connected with oil tank 1 reports to the police, and send out signal to DCS, by DCS control time delay and stop lubricating oil feeding system continue the fuel feeding, when low liquid level L =2, the control box of being connected with oil tank 1 reports to the police, and send out and refuel the instruction, make the oil tank liquid level arrange in between low operation liquid level and the high operation liquid level, when high liquid level L =3, the control box of being connected with oil tank 1 reports to the police, and signal to DCS, stop by DCS control and refuel instruction or oil extraction instruction to oil storage tank.
As shown in fig. 2, the lubricating oil supply system includes a lubricating oil pump group, a self-checking electromagnetic valve group, a cooler group, a filter group, and a lubricating oil pipeline group, which are connected in sequence;
the lubricating oil pump set comprises a lubricating oil AC pump I8, a lubricating oil AC pump II 9 and a lubricating oil DC pump 10 which are connected with the oil tank 1, wherein the lubricating oil AC pump I8 and the lubricating oil AC pump II 9 are connected with the self-checking electromagnetic valve set through a pipeline A11 and a pipeline B12, the lubricating oil DC pump 10 is connected with the lubricating oil pipeline set through a pipeline C13, and a lubricating oil pump pressure switch A14, a lubricating oil pump pressure switch B15 and a lubricating oil pump pressure switch C16 are respectively arranged at the outlet positions of the lubricating oil AC pump I8, the lubricating oil AC pump II 9 and the lubricating oil DC pump 10; and a lubricating oil pump pressure switch A14, a lubricating oil pump pressure switch B15 and a lubricating oil pump pressure switch C16 are respectively arranged at the outlet positions of the lubricating oil pump group, and whether the operation is normal after the lubricating oil alternating-current pump I8, the lubricating oil alternating-current pump II 9 and the lubricating oil direct-current pump 10 are started is respectively monitored.
The self-checking electromagnetic valve group comprises an alternating current self-checking electromagnetic valve group connected with a lubricating oil alternating current pump I8 and a lubricating oil alternating current pump II 9 and a direct current self-checking electromagnetic valve group connected with a lubricating oil direct current pump 10, the alternating current self-checking electromagnetic valve group consists of a plurality of alternating current electromagnetic valves 17 connected in parallel and a plurality of alternating current pump pressure switches 18 connected in parallel, the alternating current electromagnetic valves 17 are connected with the alternating current pump pressure switches 18 arranged correspondingly in series, the direct current electromagnetic valve group consists of a plurality of direct current electromagnetic valves 19 connected in parallel and a plurality of direct current pump pressure switches 20 connected in parallel, the direct current electromagnetic valves 19 are connected with the direct current pump pressure switches 20 arranged correspondingly in series, and meanwhile, a cooling group and a filter group are sequentially arranged between the alternating current self-checking electromagnetic valve group and the lubricating oil pipeline group; the cooler 21 is arranged in front of the filter, in order to promote the lubricating oil to flow well, the lubricating oil is in a heating state in the oil tank 1, when the lubricating oil enters the filter, if the temperature is too high, the common filter screen is easy to damage at high temperature, and therefore the lubricating oil needs to be filtered after being cooled by the cooler. And the filter differential pressure switch A24 and the filter differential pressure switch B25 give an alarm when the filter is blocked, so that the normal operation of a lubricating oil supply system is ensured.
The cooling group is formed by connecting two coolers 21 in parallel and comprises a temperature control valve 62 and a cooler switching valve 63, the cooler switching valve 63 is arranged at the middle position of the two coolers 21, and the temperature control valve 62 is arranged at the outlet end of the cooling group; the filter group comprises two filters A22 and B23 which are connected in parallel and two filter differential pressure switches A24 and B25 which are connected in parallel; the lubricating oil alternating-current pump, the cooler and the filter of the lubricating oil supply system are respectively provided with two lubricating oil alternating-current pumps, when one of the lubricating oil alternating-current pumps fails, the other one of the lubricating oil alternating-current pumps can be switched to the other one of the lubricating oil alternating-current pumps to continue normal work, shutdown maintenance is not needed, normal operation of the whole system is guaranteed, the lubricating oil direct-current pump 10 is additionally arranged, emergency use can be achieved under the condition that the two lubricating oil alternating-current pumps 10 both fail, oil supply is continued, normal operation of the system is guaranteed, and use efficiency is improved.
The lubricating oil pipeline group comprises a lubricating pipeline and an oil return pipeline, the lubricating pipeline comprises a lubricating pipeline A26 and a lubricating pipeline B27, one end of the lubricating pipeline A26 is connected with the filter group, the other end of the lubricating pipeline A26 is connected with the lubricating pipeline B27, one way of the lubricating pipeline B27 is connected with the phase modulator 2, the other way of the lubricating pipeline B27 is connected with the barring, the oil return pipeline comprises an oil return pipeline A28 and an oil return pipeline B29, one end of the oil return pipeline B29 is connected with the oil return pipeline A28, the oil return pipeline A28 is connected with the phase modulator 2, and the other end of the oil return pipeline B29 is connected with the oil tank 1. The lubricating oil pipeline group comprises a lubricating pipeline and an oil return pipeline, if more lubricating oil is supplied to the phase modulator 2, the overflow condition can occur, the oil return pipeline is additionally arranged to return the excessive lubricating oil to the oil tank 1, the periphery of the phase modulator 2 is prevented from being polluted, and meanwhile, the recycling rate of the lubricating oil is improved.
A lubricating oil supply port pressure transmitter 30 is connected to a position of the lubricating pipeline a26 close to the filter group, and the lubricating oil supply port pressure transmitter 30 is arranged between the pipeline C13 and the lubricating pipeline B27. A lubricating oil supply port platinum thermal resistor group is connected to the position, close to the filter group, of the lubricating pipeline A26, the lubricating oil supply port platinum thermal resistor group is arranged between the pipeline C13 and the lubricating pipeline B27, and the lubricating oil supply port platinum thermal resistor group is formed by connecting two lubricating oil supply port platinum thermal resistors 31 in parallel.
As shown in fig. 3, the jacking oil system includes a jacking oil pump set, a jacking oil pump inlet pressure switch set, a jacking oil pump outlet pressure switch set, and a jacking oil pipeline set, the jacking oil pump inlet pressure switch set is disposed at an inlet position of the jacking oil pump set, the jacking oil pump outlet pressure switch set is disposed at an outlet position of the jacking oil pump set, and meanwhile, the jacking oil pump set is connected with a pipeline C13 through a pipeline D32, and the jacking oil pump set is connected with the phase modulator 2 through a jacking oil pipeline 33;
the jacking oil pump group comprises a jacking oil alternating-current pump I34, a jacking oil alternating-current pump II 35 and a jacking oil direct-current pump 36, the jacking oil pump inlet pressure switch group comprises a jacking oil pump inlet pressure switch A37, a jacking oil pump inlet pressure switch B38 and a jacking oil pump inlet pressure switch C39 which are respectively connected with the jacking oil alternating-current pump I34, the jacking oil alternating-current pump II 35 and the jacking oil direct-current pump 36, and the jacking oil pump outlet pressure switch group comprises a jacking oil pump outlet pressure switch A40, a jacking oil pump outlet pressure switch B41 and a jacking oil pump outlet pressure switch C42 which are respectively connected with the jacking oil alternating-current pump I34, the jacking oil alternating-current pump II 35 and the jacking oil direct-current pump 36;
a jacking oil pump outlet pressure transmitter 43, a jacking oil pump oil outlet pressure switch group and a jacking oil pump oil outlet electromagnetic valve group are arranged at the position, close to the jacking oil pump group, of the jacking oil pipeline 33; the jacking oil pump oil outlet pressure switch group is formed by connecting four jacking oil pump oil outlet pressure switches in parallel, and is respectively provided with a jacking oil pump oil outlet pressure switch A44, a jacking oil pump oil outlet pressure switch B45, a jacking oil pump oil outlet pressure switch C46 and a jacking oil pump oil outlet pressure switch D47; the jacking oil pump oil outlet electromagnetic valve group is formed by connecting three jacking oil pump oil outlet electromagnetic valves in parallel, namely a jacking oil pump oil outlet electromagnetic valve A48, a jacking oil pump oil outlet electromagnetic valve B49 and a jacking oil pump oil outlet electromagnetic valve C50, wherein a jacking oil pump oil outlet pressure switch A44 is connected with the jacking oil pump oil outlet electromagnetic valve A48, a jacking oil pump oil outlet pressure switch B45 is connected with the jacking oil pump oil outlet electromagnetic valve B49, a jacking oil pump oil outlet pressure switch C46 is connected with the jacking oil pump oil outlet electromagnetic valve C50, a jacking oil alternating-flow pump I34 is connected with the jacking oil pump oil outlet pressure switch C46 and connected to the jigger, a jacking oil alternating-flow pump II 35 is connected with the jacking oil pump oil outlet pressure switch A44 and the jacking oil pump oil outlet pressure switch B45 and connected to the phase modulator 2, and a jacking oil direct-flow pump 36 is connected with the jacking oil pump oil outlet pressure switch D47 and connected to the phase modulator 2.
The jacking oil pumps of the jacking oil system are three, two of the jacking oil pumps are jacking oil alternating-current pumps, one of the jacking oil alternating-current pumps is a jacking oil direct-current pump 36, when one of the jacking oil alternating-current pumps fails, the other jacking oil alternating-current pump continues to work as a backup pump, and when the two jacking oil alternating-current pumps both fail, the jacking oil direct-current pump 36 continues to work as the backup pump, so that the normal operation of the jacking oil system is guaranteed.
Jacking oil pump entry pressure switch group and jacking oil pump outlet pressure switch group set up to jacking oil pump entrance and exit monitoring operation whether normal, and jacking oil pump entry pressure switch group, jacking oil pump outlet pressure switch group correspond the setting in proper order with jacking oil pump group, guarantee that monitoring is not disturbed each other.
As shown in fig. 4, the oil smoke recovery system includes an oil smoke main pipeline 51, an exhaust fan set, an oil smoke remover 61, an exhaust pipeline a52, an exhaust pipeline B53, and an exhaust pipeline C54; the inlet end of the oil smoke main pipeline 51 is connected with the phase modulator 2, the outlet end is connected with a smoke exhaust pipeline A52, the smoke exhaust pipeline A52 is sequentially connected with an oil smoke remover 61, a smoke exhaust inlet pressure switch 60, a smoke exhaust fan set and a smoke exhaust pipeline C54, the lower end of the oil smoke remover 61 is connected with the oil tank 1 through the smoke exhaust pipeline B53, the inlet end of the smoke exhaust pipeline C54 is connected with the smoke exhaust fan set, the outlet end of the smoke exhaust pipeline C54 is arranged in the outside air, and the outlet end of the smoke exhaust pipeline C54 is provided with a smoke exhaust electromagnetic valve C59. The entry end of oil smoke recovery system is connected with the exit end of phase modulation 2, and oil smoke recovery system's exit end divide into two the tunnel, is connected to oil tank 1 all the way, arranges all the way to the air in, and the oil smoke that contains lubricating oil passes through oil smoke removing device 61, and during oil liquid after the filtration was transmitted to oil tank 1, improves the recycle ratio of lubricating oil, and clean gas after the filtration arranges to the air in, improves the filter effect, prevents air pollution.
The smoke exhaust fan unit comprises two smoke exhaust fans A55 and two smoke exhaust fans B56 which are connected in parallel, and a smoke exhaust electromagnetic valve A57 and a smoke exhaust electromagnetic valve B58 which are respectively connected with the smoke exhaust fans A55 and the smoke exhaust fans B56 in series, wherein under the condition that one smoke exhaust fan is out of order, the other smoke exhaust fan continues to work normally, and zero pollution emission of gas in the smoke exhaust recovery system is guaranteed. The outlet end of the smoke exhaust pipeline C54 is provided with a smoke exhaust electromagnetic valve C59 for automatically controlling the discharge of gas.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a phase modifier oil system which characterized in that: the oil smoke recovery system comprises an oil tank, a phase modulator, a lubricating oil supply system, a jacking oil system and an oil smoke recovery system, wherein the lubricating oil supply system and the jacking oil system are arranged between the oil tank and the phase modulator;
the lubricating oil supply system comprises a lubricating oil pump group, a self-checking electromagnetic valve group, a cooler group, a filter group and a lubricating oil pipeline group which are connected in sequence;
the lubricating oil pump set comprises a lubricating oil alternating-current pump I, a lubricating oil alternating-current pump II and a lubricating oil direct-current pump which are connected with an oil tank, wherein the lubricating oil alternating-current pump I and the lubricating oil alternating-current pump II are connected with a self-checking electromagnetic valve set through a pipeline A and a pipeline B;
the self-checking electromagnetic valve group comprises an alternating current self-checking electromagnetic valve group connected with a lubricating oil alternating current pump I and a lubricating oil alternating current pump II and a direct current self-checking electromagnetic valve group connected with a lubricating oil direct current pump, wherein the alternating current self-checking electromagnetic valve group consists of a plurality of alternating current electromagnetic valves connected in parallel and a plurality of alternating current pump pressure switches connected in parallel, the alternating current electromagnetic valves are connected in series with the alternating current pump pressure switches correspondingly arranged, the direct current self-checking electromagnetic valve group consists of a plurality of direct current electromagnetic valves connected in parallel and a plurality of direct current pump pressure switches connected in parallel, the direct current electromagnetic valves are connected in series with the direct current pump pressure switches correspondingly arranged, and meanwhile, a cooling group and a filter group are sequentially arranged between the alternating current self-checking electromagnetic valve group and the lubricating oil pipeline group;
the cooling group is formed by connecting two coolers in parallel and comprises a temperature control valve and a cooler reversing valve, the cooler reversing valve is arranged in the middle of the two coolers, and the temperature control valve is arranged at the outlet end of the cooler group; the filter group comprises two filters A and B which are connected in parallel and two filter differential pressure switches A and B which are connected in parallel; the cooler group is arranged in front of the filter group;
the lubricating oil pipeline set comprises a lubricating pipeline and an oil return pipeline, the lubricating pipeline comprises a lubricating pipeline A and a lubricating pipeline B, one end of the lubricating pipeline A is connected with the filter set, the other end of the lubricating pipeline A is connected with the lubricating pipeline B, one path of the lubricating pipeline B is connected with the phase modifier, the other path of the lubricating pipeline B is connected with the jigger, the oil return pipeline comprises an oil return pipeline A and an oil return pipeline B, one end of the oil return pipeline B is connected with the oil return pipeline A, the oil return pipeline A is connected with the phase modifier, and the other end of the oil return pipeline B is connected with the oil tank;
the jacking oil pumps of the jacking oil system are three, two of the jacking oil pumps are jacking oil alternating-current pumps, one of the jacking oil alternating-current pumps is a jacking oil direct-current pump, when one of the jacking oil alternating-current pumps fails, the other jacking oil alternating-current pump continues to work as a backup pump, and when the two jacking oil alternating-current pumps both fail, the jacking oil direct-current pump serves as a backup pump.
2. A phase modifier oil system as claimed in claim 1, wherein: the oil tank is equipped with heater group, heater limit temperature switch group, oil tank liquid level changer group, the heater group comprises a plurality of heater parallel connection, heater limit temperature switch group comprises a plurality of heater limit temperature switch with heater series connection in proper order respectively, oil tank liquid level changer group comprises a plurality of oil tank liquid level changer, the heater group link has oil tank platinum resistance group, oil tank platinum resistance group comprises a plurality of oil tank platinum resistance parallel connection, and the oil tank is equipped with oil tank vacuum transmitter simultaneously.
3. A phase modifier oil system as claimed in claim 1, wherein: the jacking oil system comprises a jacking oil pump set, a jacking oil pump inlet pressure switch set, a jacking oil pump outlet pressure switch set and a jacking oil pipeline set, wherein the jacking oil pump inlet pressure switch set is arranged at the inlet position of the jacking oil pump set, the jacking oil pump outlet pressure switch set is arranged at the outlet position of the jacking oil pump set, the jacking oil pump set is connected with a pipeline C through a pipeline D, and the jacking oil pump set is connected with a phase modulator through a jacking oil pipeline;
the jacking oil pump set comprises a jacking oil alternating-current pump I, a jacking oil alternating-current pump II and a jacking oil direct-current pump, the jacking oil pump inlet pressure switch set comprises a jacking oil pump inlet pressure switch A, a jacking oil pump inlet pressure switch B and a jacking oil pump inlet pressure switch C which are respectively connected with the jacking oil alternating-current pump I, the jacking oil alternating-current pump II and the jacking oil direct-current pump, and the jacking oil pump outlet pressure switch set comprises a jacking oil pump outlet pressure switch A, a jacking oil pump outlet pressure switch B and a jacking oil pump outlet pressure switch C which are respectively connected with the jacking oil alternating-current pump I, the jacking oil alternating-current pump II and the jacking oil direct-current pump;
a jacking oil pump outlet pressure transmitter, a jacking oil pump oil outlet pressure switch group and a jacking oil pump oil outlet electromagnetic valve group are arranged at the position, close to the jacking oil pump group, of the jacking oil pipeline; the jacking oil pump oil outlet pressure switch group is formed by connecting four jacking oil pump oil outlet pressure switches in parallel, and is respectively provided with a jacking oil pump oil outlet pressure switch A, a jacking oil pump oil outlet pressure switch B, a jacking oil pump oil outlet pressure switch C and a jacking oil pump oil outlet pressure switch D; the jacking oil pump oil outlet electromagnetic valve group is formed by connecting three jacking oil pump oil outlet electromagnetic valves in parallel, and is respectively a jacking oil pump oil outlet electromagnetic valve A, a jacking oil pump oil outlet electromagnetic valve B and a jacking oil pump oil outlet electromagnetic valve C, wherein a jacking oil pump oil outlet pressure switch A is connected with the jacking oil pump oil outlet electromagnetic valve A, a jacking oil pump oil outlet pressure switch B is connected with the jacking oil pump oil outlet electromagnetic valve B, the jacking oil pump oil outlet pressure switch C is connected with the jacking oil pump oil outlet electromagnetic valve C, a jacking oil alternating-current pump I is connected with the jacking oil pump oil outlet pressure switch C and connected to the jigger, a jacking oil alternating-current pump II is connected with the jacking oil pump oil outlet pressure switch A and the jacking oil pump oil outlet pressure switch B and connected to the phase modulator, and a jacking oil direct-current pump is connected with the jacking oil pump oil outlet pressure switch D and connected to the phase modulator.
4. A phase modifier oil system as claimed in claim 1 or 2, wherein: the oil fume recovery system comprises an oil fume main pipeline, an exhaust fan set, an oil fume removing device, an exhaust pipeline A, an exhaust pipeline B and an exhaust pipeline C;
the inlet end of the smoke exhaust main pipeline is connected with the phase modulator, the outlet end of the smoke exhaust main pipeline is connected with a smoke exhaust pipeline A, the smoke exhaust pipeline A is sequentially connected with a smoke exhaust device, a smoke exhaust inlet pressure switch, a smoke exhaust fan set and a smoke exhaust pipeline C, the lower end of the smoke exhaust device is connected with an oil tank through a smoke exhaust pipeline B, the inlet end of the smoke exhaust pipeline C is connected with the smoke exhaust fan set, and the outlet end of the smoke exhaust pipeline C is arranged in outside air;
the smoke exhaust fan set consists of two smoke exhaust fans A and B which are connected in parallel, and two smoke exhaust electromagnetic valves A and B which are respectively connected with the smoke exhaust fans A and B in series;
and the outlet end of the smoke exhaust pipeline C is provided with a smoke exhaust electromagnetic valve C.
5. A phase modifier oil system as claimed in claim 1, wherein: the position of the lubricating pipeline A close to the filter group is connected with a lubricating oil supply port pressure transmitter, and the lubricating oil supply port pressure transmitter is arranged between the pipeline C and the lubricating pipeline B.
6. A phase modifier oil system as claimed in claim 1, wherein: the position of lubricating pipeline A close to the filter group is connected with a lubricating oil supply port platinum thermal resistor group, the lubricating oil supply port platinum thermal resistor group is arranged between the pipeline C and the lubricating pipeline B, and the lubricating oil supply port platinum thermal resistor group is formed by connecting two lubricating oil supply port platinum thermal resistors in parallel.
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| CN2417363Y (en) * | 2000-03-13 | 2001-01-31 | 周盛夫 | Static pressure bearing lubricant supplying arrangement for energy saving type ball mill |
| CN105275895A (en) * | 2015-11-25 | 2016-01-27 | 上海电气液压气动有限公司 | Hydraulic driving system achieving pressure adjustment |
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| CN103470935A (en) * | 2013-08-30 | 2013-12-25 | 江苏江海润液设备有限公司 | Lubricating oil device of gas turbine |
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