CN109209858A - A kind of external lubricating oil system of frequency conversion feed pump - Google Patents
A kind of external lubricating oil system of frequency conversion feed pump Download PDFInfo
- Publication number
- CN109209858A CN109209858A CN201710530936.9A CN201710530936A CN109209858A CN 109209858 A CN109209858 A CN 109209858A CN 201710530936 A CN201710530936 A CN 201710530936A CN 109209858 A CN109209858 A CN 109209858A
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- lubricating oil
- external lubricating
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 234
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 224
- 238000005461 lubrication Methods 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/20—Filtering
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Details Of Gearings (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of external lubricating oil system of frequency conversion feed pump, comprising: external lubricating oil main oil pump group, external lubricating oil filter group, external lubricating oil oil cooler group, energy-storing pressure-stabilizing device, oil spilling pressure regulator valve, PLC on-site control.It is sent out by external lubricating oil main oil pump group, pass through non-return valve, outlet valve, lubricating oil is sent to external lubricating oil filter group, after examining oil qualified, into external lubricating oil oil cooler group, lubricating oil temperature is maintained at 40 DEG C and enters lubricating oil main pipe, an energy-storing pressure-stabilizing device is set in lubricating oil main pipe and is arranged in series an oil spilling pressure regulator valve, main pipe oil pressure is kept to stablize.Lubricating oil main pipe is divided into three tunnels inside coupler, enters main feed pump bearing lubrication all the way, all the way in coupler internal lubrication gear set, enters motor, fore pump bearing lubrication all the way.Oil return line is respectively set in three road lubricating oil, imports inside coupler, is drawn to main oil pump by external lubricating oil main oil pump oil inlet pipe, continues fuel feeding, complete the circulation of lubricating oil.
Description
Technical field
The present invention relates to industrial frequency conversion water supply pump technical fields, more specifically, in particular to a kind of frequency conversion feed pump
External lubricating oil system.
Background technique
The rotary parts such as bearing, coupler, gear, the motor of industrial frequency conversion feed pump, need in operation oil-servicing facilities to
Give continuous, stable lubrication and cooling.Conventional frequency conversion feed pump oil-servicing facilities is the gear fuel feeding built in inside its coupler
Device, fueller include the attachmentes such as gear oil pump and its spill valve, sequence valve, strainer, valve.Built-in fueller is set
Standby, system occurs abnormal, needs to stop main feed pump operation, can Disintegration overhaul, to the industrial enterprise's band for needing continuous operation
Carry out economic influence.Since built-in lubricating utensil, system are compact to design, when emerged in operation lubrication pressure fluctuation, Ren Yuanxu
Closely feed pump rotating part is adjusted, to personal injury, there are major safety risks.
Summary of the invention
(1) technical problem
Therefore, how to solve frequency conversion feed pump built in lubricating oil system be unfavorable for overhauling and run in adjustment of oil pressure it is inconvenient
Deficiency, at those skilled in the art's urgent problem to be solved.
(2) technical solution
The contents of the present invention are to provide a kind of external lubricating oil system of frequency conversion feed pump, comprising: the external main oil of lubricating oil
Pump group, external lubricating oil filter group, external lubricating oil oil cooler group, energy-storing pressure-stabilizing device, oil spilling pressure regulator valve, PLC are controlled on the spot
Cabinet.
The external lubricating oil main oil pump group is connected with lubricating oil filter group, external lubricating oil in turn by oil pipeline
Oil cooler group.
The external lubricating oil main oil pump group is respectively the external lubricating oil main oil pump in first side and the main oil of the external lubricating oil in second side
Pump.The external lubricating oil main oil pump in the first side and the external lubricating oil main oil pump in second side are arranged in parallel by oil pipeline.Entering
Inlet porting door on the oil pipeline of the external lubricating oil main oil pump in first side is provided with emptying on the external lubricating oil main oil pump in first side
Valve is disposed with pressure sensor, non-return valve, outlet portal on the oil pipeline of the external lubricating oil main oil pump in first side out.
Equally, it is provided with entrance door on the oil pipeline for entering the external lubricating oil main oil pump in second side, in the main oil of the external lubricating oil in second side
Emptying valve is provided on pump, be disposed on the oil pipeline of the external lubricating oil main oil pump in second side out pressure sensor,
Non-return valve, outlet portal.It has picked out between the external lubricating oil main oil pump in the first side of first side oil pipeline and pressure sensor and has followed again
Endless tube is connected at the oil pipeline between the external lubricating oil main oil pump of the external lubricating oil main oil pump entrance door in second side and second side,
And recirculation door is provided on the circulation pipe.
The external lubricating oil filter group is respectively the external lubrication oil filtration of the external lubricating oil filter in first side and second side
Device.The external lubricating oil filter in the first side and the external lubricating oil filter in second side are arranged in parallel by oil pipeline.Entering
It is provided with entrance electrically operated gate on the oil pipeline of the external lubricating oil filter in first side, in the defeated of the external lubricating oil filter in first side out
Outlet electrically operated gate is provided on oil-piping；It is electronic that entrance is provided on the oil pipeline for entering the external lubricating oil filter in second side
Door, is provided with outlet electrically operated gate on the oil pipeline of the external lubricating oil filter in second side out.
It is provided on oil pipeline between the external lubricating oil main oil pump group and the external lubricating oil filter group
Pressure sensor before filter.Filtering is provided between the external lubricating oil filter group and the lubricating oil oil cooler group
Pressure sensor after device.
The external lubricating oil oil cooler group is respectively the external lubricating oil cold oil of the external lubricating oil oil cooler in first side and second side
Device.The external lubricating oil oil cooler in first side and the external lubricating oil oil cooler in the second side are arranged in parallel by oil pipeline.?
It is provided with entrance door on into the oil pipeline of the external lubricating oil oil cooler in first side, external lubricating oil oil cooler is defeated in first side out
Outlet portal is provided on oil-piping；It is provided with entrance door on the oil pipeline for entering the external lubricating oil oil cooler in second side, is being gone out
Outlet portal is provided on the oil pipeline of the external lubricating oil oil cooler in second side.
The external lubricating oil oil cooler group is connected with lubricating oil main pipe, and an accumulation of energy is provided in the lubricating oil main pipe
Voltage-stablizer, and it has been arranged in series an oil spilling pressure regulator valve.The oil spilling pressure regulator valve is connected with coupler by lubricating oil main pipe.
The energy-storing pressure-stabilizing device is connected in the lubricating oil main pipe by inlet flange and shutoff door, the energy-storing pressure-stabilizing
Pressure regulator valve is installed at the top of device.
The oil spilling pressure regulator valve is used to keep the oil pressure of the lubricating oil main pipe to stablize.In the disengaging of the oil spilling pressure regulator valve
Manually operated door manually operated door and oil spilling pressure regulator valve after is respectively arranged with before oil spilling pressure regulator valve on oil pipeline.Before the oil spilling pressure regulator valve
It is connected after manually operated door with oil pipeline before manually operated door, after the oil spilling pressure regulator valve, and is provided with oil spilling pressure regulator valve bypass valve.
The lubricating oil main pipe is divided into three road branch pipes inside the coupler, and first via branch pipe enters main feed pump bearing
Lubrication, the second road branch pipe enter motor, fore pump bearing lubrication in coupler internal lubrication gear set, third road branch pipe.It is described
Three road lubricating oil branches are respectively arranged with oil return line, import inside coupler, are inhaled by external lubricating oil main oil pump oil inlet pipe
To external lubricating oil main oil pump group, continues fuel feeding, complete the circulation of lubricating oil.
The PLC on-site control uses 200 controller of Siemens.The external main oil of lubricating oil can be realized by setting program
Pump pneumatic and stop, being provided with the states such as various valves, sensor in simultaneity factor can show in PLC on-site control
Show, to facilitate operation personnel's regulation.PLC on-site control can also preset program, realize external lubricating oil main oil pump group,
One operation of external lubricating oil filter group, a spare auto-control.
It is sent out by external lubricating oil main oil pump group, by non-return valve, outlet valve, lubricating oil is sent to external lubricating oil mistake
Lubricating oil temperature, into external lubricating oil oil cooler group, is maintained at 40 DEG C and enters lubrication by filter group after examining oil qualified
An energy-storing pressure-stabilizing device is arranged in lubricating oil main pipe and is arranged in series an oil spilling pressure regulator valve, keeps main pipe oil pressure steady for oily main pipe
It is fixed.Lubricating oil main pipe is divided into three tunnels inside coupler, enters main feed pump bearing lubrication all the way, moistens inside coupler all the way
Sliding gear set, enters motor, fore pump bearing lubrication all the way.Oil return line is respectively set in three road lubricating oil, imports in coupler
Portion is drawn to main oil pump by external lubricating oil main oil pump oil inlet pipe, continues fuel feeding, complete the circulation of lubricating oil.PLC is controlled on the spot
Cabinet can realize the opening, stop on the spot of external main oil pump, linkage test, emergent stopping.The pressure sensor arranged in system, temperature pass
Sensor can realize opening, stop and interlock automatically and opening, stop and the automatic switchover of strainer for external main oil pump.
The present invention technical characteristic different from existing built-in oil supply unit of lubricating oil is: 1. external lubricating oil of the invention
Main oil pump and external lubricating oil filter are provided with two sets, and mutual backup.The external operation of lubricating oil main oil pump one, one in operation
It is spare, according to the variation of the state of operation main oil pump and system lubrication oil pressure, the spare main oil pump of automatic linkage；External lubricating oil
It is the operation of filter one, one spare, spare lubricating oil filter is automatically switched according to pressure difference before and after operation filter, is reduced artificial
Intervene, and provides the time for maintenance.2. external lubricating oil main oil pump group only passes through pipeline and coupler phase far from main feed pump is given
Even, too close to the injury risk of rotating machinery when avoiding personnel's operation, adjusting.
(3) beneficial effect
The configuration of the present invention is simple, system are intuitive, grasp and operate convenient for personnel；It is the operation of external fueller one, one spare,
Own reliability, automatization level are higher, can reduce human intervention.The present invention, which realizes, to be improved equipment operational reliability, reduces enterprise
Industry economy is impaired, reduces the purpose of personnel's operating risk.
Detailed description of the invention
Fig. 1 is present system total figure, and Fig. 2 is external lubricating oil main oil pump group schematic diagram in the present invention, and Fig. 3 is the present invention
In external lubricating oil filter group schematic diagram, the external lube oil cooler group schematic diagram of Fig. 4, Fig. 5 be the present invention in energy-storing pressure-stabilizing
Device schematic diagram, Fig. 6 are oil spilling pressure regulator valve schematic diagram in the present invention.
In Fig. 1,1 is external lubricating oil main oil pump group；2 be external lubricating oil filter group；3 be external lubricating oil oil cooler
Group；4 be energy-storing pressure-stabilizing device；5 be oil spilling pressure regulator valve；6 be main feed pump；7 be coupler；8 be motor；9 be fore pump；10 are
PLC on-site control.
In Fig. 2,1-1 is the external lubricating oil main oil pump entrance door in first side；1-2 is the external lubricating oil main oil pump in first side；1-3 is
The external lubricating oil main oil pump in first side is vented valve；1-4 is the external lubricating oil main oil pump outlet pressure sensor in first side；1-5 is first
The external lubricating oil main oil pump recirculation door in side；1-6 is the external lubricating oil main oil pump outlet non-return door in first side；1-7 is that first side is external
Lubricating oil main oil pump outlet portal；1-8 is the external lubricating oil main oil pump entrance door in second side；1-9 is the external lubricating oil main oil pump in second side；
1-10 is the external lubricating oil main oil pump emptying valve in second side；1-11 is the external lubricating oil main oil pump recirculation door in second side；1-12 is
The external lubricating oil main oil pump outlet pressure sensor in second side；1-13 is the external lubricating oil main oil pump outlet non-return door in second side；1-14
It is the external lubricating oil main oil pump outlet portal in second side.
In Fig. 3,2-1 is first side lubricating oil filter entrance electrically operated gate；2-2 is first side lubricating oil filter；2-3 is first side
Lubricating oil filter exports electrically operated gate；2-4 is second side lubricating oil filter entrance electrically operated gate；2-5 is second side lubricating oil filter；
2-6 is second side lubricating oil filter outlet electrically operated gate；2-7 is pressure sensor before filter；2-8 is pressure sensing after filter
Device.
In Fig. 4,3-1 is first side lube oil cooler entrance door；3-2 is first side lube oil cooler；3-3 is first side lubrication
Oil cooler outlet portal；3-4 is second side lube oil cooler entrance door；3-5 is second side lube oil cooler；3-6 is second side profit
Oil cooler outlet portal.
In Fig. 5,4-1 is energy-storing pressure-stabilizing device pressure regulator valve；4-2 is energy-storing pressure-stabilizing device ontology；4-3 is energy-storing pressure-stabilizing device entrance method
It is blue；4-4 is energy-storing pressure-stabilizing device shutoff door.
In Fig. 6,5-1 is oil spilling regulating valve bypass valve；5-2 is manually operated door after oil spilling regulating valve；5-3 is oil spilling pressure regulator valve；
5-4 is manually operated door before oil spilling regulating valve.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
In the description of the present invention, the orientation of instructions such as term " on ", "lower", "front", "rear", " top ", " bottom " or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
As shown in Figure 1, a kind of external lubricating oil system of frequency conversion feed pump include: external lubricating oil main oil pump group (1), it is outer
Set lubricating oil filter group (2), external lubricating oil oil cooler group (3), energy-storing pressure-stabilizing device (4), oil spilling pressure regulator valve (5), PLC control
Cabinet (10) further includes further main feed pump (6), coupler (7), motor (8), the fore pump (9) for needing to lubricate.It is external
The lubricating oil of lubricating oil main oil pump group output, via external lubricating oil filter group, external lubricating oil oil cooler group, energy-storing pressure-stabilizing
Device, oil spilling regulating valve are sent to each bearing portion for needing to lubricate, and the oil return of each bearing converges to coupler fuel tank, then by external lubrication
External lubricating oil system circulation is completed in oily main oil pump group sucking, output.
As shown in Fig. 2 and Fig. 1, the lubricating oil main pipe of coupler (7) is drawn from coupler tank bottoms, branches into two pipes
Road supplies the external lubricating oil main oil pump (1-2) in first side by the external lubricating oil main oil pump entrance door (1-1) in first side respectively；Second side
External lubricating oil main oil pump entrance door (1-8) supplies the external lubricating oil main oil pump (1-9) in second side.Through the external lubricating oil in the first and second two sides
After main oil pump boosting, pass through the external lubricating oil main oil pump outlet non-return door (1-6) in first side and the main oil of the external lubricating oil in first side respectively
The external lubricating oil main oil pump outlet of the external lubricating oil main oil pump outlet non-return door (1-13) of pump discharge door (1-7) or second side and second side
Door (1-14) is sent to external lubricating oil filter group (such as Fig. 3).
In lubricating oil system operation, the external lubricating oil main oil pump in first, second side one for running, one for spare,
Two external lubricating oil main oil pumps are in mutual backup state always.Stand-by state is divided into two kinds: it is spare that one is logics, i.e., and two
Pressure signal is reached PLC control cabinet (10) by the external respective outlet pressure sensor of lubricating oil main oil pump of platform respectively, is normally gone out
Mouth oil pressure is 0.40Mpa, when running outlet pressure≤0.35Mpa of external lubricating oil main oil pump, PLC control cabinet (10) interlocking
Spare external lubricating oil main oil pump starting, maintains system oil pressure；Second is that state is spare, i.e., by two external main oil of lubricating oil
The operating status electric signal of pump motor reaches PLC control cabinet (10) respectively, when the state electric signal disappearance of operation pump, automatic interlock
Start stand-by pump, to keep the work continuity of lubricating oil system.It is each to install all the way again on the outlet of two main oil pumps
Circulation line (1-5 and 1-11), is connected to the entrance of other side's main oil pump；In the pump housing highest point of two main oil pumps, respectively connects and put all the way
Air pipe line (1-3 and 1-10) is led to coupler (7) top, and while operation pump operating, profit is constantly conveyed to stand-by pump
Lubricating oil squeezes out the air in stand-by pump to coupler, guarantees that spare pump startup can reach force request out.
Fig. 3 is that (first side lubricating oil filter is 2-2, second side lubricating oil filter to external lubricating oil filter group in parallel
For 2-5), one for running, one for spare.By external lubricating oil main oil pump group export Lai lubricating oil, flow through external
Lubricating oil filter group removes lubrication well cuts, send to external lubricating oil oil cooler group (3) and cooled down.The external profit in first side
When oil filter is filtered, the external lubricating oil filter entrance electrically operated gate (2-1) in first side, outlet electrically operated gate (2-3) are opened；
The external lubricating oil inlet electrically operated gate (2-4) in second side, outlet electrically operated gate (2-6) are closed.The external forward and backward difference of lubricating oil filter group
Pressure signal is simultaneously led to PLC (10) by setting pressure sensor (2-7 and 2-8), when forward and backward pressure sensor pressure difference reaches
When 0.06Mpa, PLC (10) issues switching signal automatically, open the external lubricating oil filter entry and exit electrically operated gate in second side (2-6 and
2-4), investment the external lubricating oil filter in second side (2-5) operation, immediately close first side filter entry and exit electrically operated gate (2-3 and
2-1), stop the external lubricating oil filter in first side (2-2) operation, be simultaneously emitted by alarm signal.
Fig. 4 is external lube oil cooler group, using manual operation, when leakage, plugging fault occur for either side oil cooler
When, manual switching to the other side is run.
Fig. 5 is the energy-storing pressure-stabilizing device (4) of lubricating oil main pipe, and accumulator ontology (4-2) uses accumulator inlet flange (4-
4), energy-storing pressure-stabilizing device shutoff door (4-3) is connected with lubricating oil main pipe, and energy-storing pressure-stabilizing device shutoff door (4-4) maintains a normally open in operation,
Lubricating oil is pressed into inside energy-storing pressure-stabilizing device under the effect of lubricating oil main-piping pressure, is squeezed leather bag inside energy-storing pressure-stabilizing device, is passed through storage
Pressure regulator valve (4-1) at the top of energy voltage-stablizer, energy-storing pressure-stabilizing device internal pressure is adjusted as 0.38Mpa, it is therefore an objective to external switching
During lubricating oil main oil pump (1), of short duration lubrication pressure decline is compensated, makes lubricating oil main-piping pressure not less than 0.35Mpa.
Fig. 6 is an external lubricating oil oil spilling pressure regulator valve (5), the forward and backward manually operated door of oil spilling pressure regulator valve (5-3) in operation
(5-4 and 5-2) is maintained a normally open, and bypass valve (5-1) is closed.Oil spilling pressure regulator valve (5-3) is adjusted using aerial drainage, automatically by lubricating oil mother
The lubricating oil pressure of pipe 0.40Mpa is adjusted to 0.15Mpa, send to each and uses oily bearing shell position, the lubricating oil of leakage passes through oil spilling tune
The bottom pressure valve (5-3) drain line drains into coupler (7) fuel tank.It is closed when failure forward and backward manually operated door (5-4 and 5-2), opens bypass
Door (5-1), using manually adjusting lubrication pressure.
PLC control cabinet (10), it can be achieved that external lubricating oil main oil pump starting, stop；The logic of external lubricating oil system
Interlocking, state interlocking；Accident alarming function, reduces manual intervention, and realization automatically engages.
The present invention is not limited to the above-described embodiments, anyone can obtain other various shapes under the inspiration of the present invention
The product of formula.It is all according to equivalent changes and modifications within the scope of the patent application of the present invention, all should belong to covering scope of the invention.
Claims (6)
1. a kind of external lubricating oil system of frequency conversion feed pump, comprising: external lubricating oil main oil pump group, external lubricating oil filter
Group, external lubricating oil oil cooler group, energy-storing pressure-stabilizing device, oil spilling pressure regulator valve, PLC on-site control, it is characterised in that:
The external lubricating oil main oil pump group is connected with lubricating oil filter group, external lubricating oil cold oil in turn by oil pipeline
Device group；Filtering is provided on oil pipeline between the external lubricating oil main oil pump group and the external lubricating oil filter group
Pressure sensor before device；After being provided with filter between the external lubricating oil filter group and the lubricating oil oil cooler group
Pressure sensor；
The external lubricating oil oil cooler group is connected with lubricating oil main pipe, and an energy-storing pressure-stabilizing is provided in the lubricating oil main pipe
Device, and it has been arranged in series an oil spilling pressure regulator valve；The oil spilling pressure regulator valve is connected with coupler by lubricating oil main pipe；
The lubricating oil main pipe is divided into three road branch pipes inside the coupler, and first via branch pipe enters main feed pump bearing profit
Sliding, the second road branch pipe enters motor, fore pump bearing lubrication in coupler internal lubrication gear set, third road branch pipe；Described three
Road lubricating oil branches is respectively arranged with oil return line, imports inside coupler, is drawn to by external lubricating oil main oil pump oil inlet pipe
External lubricating oil main oil pump group；
The PLC on-site control uses 200 controller of Siemens.
2. a kind of external lubricating oil system of frequency conversion feed pump according to claim 1, it is characterised in that:
The external lubricating oil main oil pump group is respectively the external lubricating oil main oil pump of the external lubricating oil main oil pump in first side and second side；Institute
The external lubricating oil main oil pump of the external lubricating oil main oil pump in first side and second side is stated to be arranged in parallel by oil pipeline；
The inlet porting door on the oil pipeline for entering the external lubricating oil main oil pump in first side, on the external lubricating oil main oil pump in first side
It is provided with emptying valve, is disposed with pressure sensor, check on the oil pipeline of the external lubricating oil main oil pump in first side out
Valve, outlet portal；
It is provided with entrance door on the oil pipeline for entering the external lubricating oil main oil pump in second side, in the external lubricating oil main oil pump in second side
On be provided with emptying valve, pressure sensor, inverse is disposed on the oil pipeline of the external lubricating oil main oil pump in second side out
Only valve, outlet portal；
Recirculation pipe has been picked out between the external lubricating oil main oil pump in the first side of first side oil pipeline and pressure sensor, has been connected to
At oil pipeline between the external lubricating oil main oil pump of the external lubricating oil main oil pump entrance door in second side and second side, and in the circulation
Recirculation door is provided on pipe.
3. a kind of external lubricating oil system of frequency conversion feed pump according to claim 1, it is characterised in that:
The external lubricating oil filter group is respectively the external lubricating oil filter of the external lubricating oil filter in first side and second side, institute
The external lubricating oil filter of the external lubricating oil filter in first side and second side is stated to be arranged in parallel by oil pipeline；
It is provided with entrance electrically operated gate on the oil pipeline for entering the external lubricating oil filter in first side, in the external lubricating oil in first side out
Outlet electrically operated gate is provided on the oil pipeline of filter；It is arranged on the oil pipeline for entering the external lubricating oil filter in second side
There is entrance electrically operated gate, is provided with outlet electrically operated gate on the oil pipeline of the external lubricating oil filter in second side out.
4. a kind of external lubricating oil system of frequency conversion feed pump according to claim 1, it is characterised in that:
The external lubricating oil oil cooler group is respectively the external lubricating oil oil cooler of the external lubricating oil oil cooler in first side and second side, institute
The external lubricating oil oil cooler of the external lubricating oil oil cooler in first side and the second side is stated to be arranged in parallel by oil pipeline；
It is provided with entrance door on the oil pipeline for entering the external lubricating oil oil cooler in first side, in the external lubricating oil cold oil in first side out
Outlet portal is provided on the oil pipeline of device；Entrance is provided on the oil pipeline for entering the external lubricating oil oil cooler in second side
Door, is provided with outlet portal on the oil pipeline of the external lubricating oil oil cooler in second side out.
5. a kind of external lubricating oil system of frequency conversion feed pump according to claim 1, it is characterised in that:
The energy-storing pressure-stabilizing device is connected in the lubricating oil main pipe by inlet flange and shutoff door, energy-storing pressure-stabilizing device top
Portion is equipped with pressure regulator valve.
6. a kind of external lubricating oil system of frequency conversion feed pump according to claim 1, it is characterised in that:
Manually operated door and oil spilling pressure regulator valve before oil spilling pressure regulator valve are respectively arranged on the disengaging oil pipeline of the oil spilling pressure regulator valve
Manually operated door afterwards；Connected after manually operated door with oil pipeline before manually operated door, after the oil spilling pressure regulator valve before the oil spilling pressure regulator valve
It connects, and is provided with oil spilling pressure regulator valve bypass valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710530936.9A CN109209858B (en) | 2017-07-03 | 2017-07-03 | External lubricating oil system of variable-frequency water supply pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710530936.9A CN109209858B (en) | 2017-07-03 | 2017-07-03 | External lubricating oil system of variable-frequency water supply pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| CN201710530936.9A Active CN109209858B (en) | 2017-07-03 | 2017-07-03 | External lubricating oil system of variable-frequency water supply pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112160904A (en) * | 2020-09-02 | 2021-01-01 | 中油国家油气钻井装备工程技术研究中心有限公司 | High-power electrically-driven fracturing sledge power end lubricating system |
| CN114923104A (en) * | 2022-06-15 | 2022-08-19 | 宁波德曼压缩机有限公司 | Control method for lubrication circulation system of gear speed-increasing type centrifugal air compressor |
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