CN204082707U - A kind of EH petrol station for EH hydraulic control system - Google Patents
A kind of EH petrol station for EH hydraulic control system Download PDFInfo
- Publication number
- CN204082707U CN204082707U CN201420493007.7U CN201420493007U CN204082707U CN 204082707 U CN204082707 U CN 204082707U CN 201420493007 U CN201420493007 U CN 201420493007U CN 204082707 U CN204082707 U CN 204082707U
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- Prior art keywords
- oil
- filter
- valve
- pipeline
- pressure
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- 239000002828 fuel tank Substances 0.000 claims abstract description 29
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 6
- 239000002516 radical scavenger Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 78
- 239000007787 solid Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 241000611838 Leiostomus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a kind of EH petrol station for EH hydraulic control system, comprise fuel tank, main oil pump, high pressure accumulator, valve group, electric control cubicle and pipeline fittings, described fuel tank is provided with oil-suction oil filter, return oil filter, heater, cooler, liquid temperature piezometer, temperature transducer, air-strainer, oil-feed hydraulic fluid port, sampling hydraulic fluid port and hydraulic fluid port of draining the oil, described valve group connects fuel tank and main oil pump import, and connect main oil pump outlet and system high pressure mother pipe, valve group is provided with pump discharge clearance filter, filter screen differential pressure transmitter device, stop valve, check valve, pressure switch, pressure gauge and instrumentation module on the spot, described pump discharge clearance filter is arranged in fuel tank, it is connected with main oil pump entrance by pipeline, described stop valve comprises the first stop valve and the second stop valve, described first stop valve is arranged between pump discharge clearance filter and main oil pump entrance.The utility model can extend shuts down the dwell time, improves effects of energy saving and emission reduction.
Description
Technical field
The utility model relates to a kind of power plant, particularly relates to a kind of EH petrol station for EH hydraulic control system.
Background technique
EH hydraulic control system is made up of the part such as power plant (EH petrol station), oil engine, accumulator package, pipeline usually.According to unit needs, some unit is also configured with low pressure oil motivation and controll block, and some unit is also furnished with servoamplifier assembly (instrument box).
EH petrol station is the power plant of EH system, and its Main Function is to provide the pressure oil meeting system requirements (comprising pressure, turbidity test, temperature), also plays in addition and stores the effect of hydraulic pressure wet goods.
Existing EH petrol station complex structure, fuel tank is integrated with other elements, filter precision is low, and comprise number of elements and kind is more, valve seepage or each parts joint Seepage is easily there is in pressure maintaining period, make its dwell time short, shorten each element working life, effects of energy saving and emission reduction is poor.
Model utility content
The utility model is in order to solve defect and the deficiency of the existence of above-mentioned prior art; provide a kind of filter precision to improve; extend each element working life, can also extend simultaneously and shut down the dwell time, improve the EH petrol station for EH hydraulic control system of effects of energy saving and emission reduction.
The technical solution of the utility model: a kind of EH petrol station for EH hydraulic control system, comprises fuel tank, main oil pump, high pressure accumulator, valve group, electric control cubicle and pipeline fittings, described fuel tank is provided with oil-suction oil filter, return oil filter, heater, cooler, liquid temperature piezometer, temperature transducer, air-strainer, oil-feed hydraulic fluid port, sampling hydraulic fluid port and hydraulic fluid port of draining the oil, described valve group connects fuel tank and main oil pump import, and connects main oil pump outlet and system high pressure mother pipe, valve group is provided with pump discharge clearance filter, filter screen differential pressure transmitter device, stop valve, check valve, pressure switch, pressure gauge and instrumentation module on the spot, described pump discharge clearance filter is arranged in fuel tank, it is connected with main oil pump entrance by pipeline, described stop valve comprises the first stop valve and the second stop valve, described first stop valve is arranged between pump discharge clearance filter and main oil pump entrance, described filter screen differential pressure transmitter device is connected between main oil pump outlet and the female pipe of system high pressure, and filter screen differential pressure transmitter device is connected with instrumentation module by pipeline, and described main oil pump comprises motor, gear pump and pipe joint, described pipeline fittings comprises the valve for connecting components, joint, pipe clamp.
The utility model adopts independent fuel tank and double suction oil to filter; filter precision improves; all component life increases; be connected to by filter screen differential pressure transmitter device between main oil pump outlet and the female pipe of system high pressure, filter screen differential pressure transmitter device is connected with instrumentation module by pipeline, makes it can have the functions such as electric motor protecting, motor redundant, motor automatic switchover simultaneously; after motor stops; pressure can protect more than 1 hour, thus extends the shutdown dwell time, improves effects of energy saving and emission reduction.
Preferably, described electric control cubicle is fixed on fuel tank side, and described tank bottoms is provided with support, and described main oil pump is arranged in support, and described support is provided with the support rail supporting electric control cubicle.
This kind of structure makes the connection of fuel tank, main oil pump and electric control cubicle more solid and reliable, and entire firmness improves.
Preferably, the pipeline that described pressure switch is connected with instrumentation module is welded with the second stop valve, and described pressure switch is connected on the pipeline of instrumentation module by plain joint.
This kind of structure makes pressure switch be connected more solid and reliable with the pipeline of instrumentation module, thus improves the stability in use of pressure switch.
Preferably, the pipeline that described pressure gauge is on the spot connected with instrumentation module is also welded with the second stop valve, and described pressure gauge is on the spot connected on the pipeline of instrumentation module by crossover sub.
This kind of structure makes pressure gauge on the spot be connected more solid and reliable with the pipeline of instrumentation module, thus improves manometric stability in use on the spot.
Preferably, described oil-suction oil filter precision is 80um, and described return oil filter precision is 3um, and described return oil filter inside is also provided with a bypass valve, and the oil return filter core filler opening place of return oil filter is also provided with a pressure signal-transmitting machine.
The utility model oil-suction oil filter precision is 80um, mainly in order to prevent pump aspirated foreign body, when causing system pressure to decline due to pump oil suction deficiency, should change this filter core;
Return oil filter precision is 3um, the solid impurity mainly in absorption system oil return.Return oil filter inside is also provided with a bypass valve (opening pressure is 0.4MPa), ensures that oil return is unobstructed when filter core blocks or system oil return pressure is higher.Oil return filter core filler opening place is also provided with a pressure signal-transmitting machine, and when return pressure reaches 0.35 MPa, signal transmitter just sends signal instruction.Mainly detect filter core whether to block, when this pressure switch is in state of alarm for a long time when system is normally run, illustrate that filter core blocks, need to change this filter core.
The effect of heater is the hydraulic oil that heating-up temperature is lower.Oil viscosity when low temperature is higher; in order to protect pump (reminding especially: in oil temperature lower than less than 20 DEG C No starting main oil pumps) and system component; when oil temperature opens heating oil automatically lower than heater when 32 DEG C; when oil temperature is raised to 40 DEG C, heater excises (under normal circumstances automatically; these two switching temperature spotss are arranged on 32 DEG C and 40 DEG C, and user can change working value according to actual conditions at heat control system).
The effect of cooler is the hydraulic oil that chilling temperature is higher.Oil viscosity when temperature is too high is lower, and lubrication effect reduces, and is unfavorable for the normal use of pump and system component equally, and high oil temperature, and Sealing is easily aging.When oil temperature manually throws cooler higher than when 55 DEG C, oil temperature manually cuts cooler lower than when 40 DEG C.
Liquid-level switch mainly detects oil tank liquid level, and oil tank liquid level height is about 310mm.
The effect of air filter mainly keeps the air pressure inside and outside case to keep balance.
Sample tap is mainly in order to the use of the samplings such as daily chemical examination.
The effect of main oil pump is the hydraulic oil providing constant pressure to system.
Must check that the normally open valve in pipeline should be opened before starting main oil pump, the valve especially in pump flow-off pipeline must be opened, otherwise will damage pump.Normally open valve door in main oil pump respective line for subsequent use also should be opened, and object is the interlocked startup of tackling pump at any time.
Valve group is the important step that main oil pump exports between the female pipe of system high pressure, is provided with the function module such as pump discharge clearance filter, filter screen differential pressure transmitter device, stop valve, check valve, pressure switch, on the spot pressure gauge above.
Electric control cubicle is the power supply unit of petrol station.
Preferably, described oil-feed oil port is provided with filler opening lug, described in oil port of draining the oil be provided with fuel outlet lug, described filler opening lug and fuel outlet lug are equipped with H type pipe joint.
This kind of structure make the connection of fuel tank oil-feed hydraulic fluid port and oil inlet pipe, fuel-displaced hydraulic fluid port and oil outlet tube connection more solid and reliable.
Preferably, described high pressure accumulator is configured with oiling valve and scavenger valve, high pressure accumulator is exported with fuel tank, return opening and pressure oil respectively by pipeline and is connected, and the pressure oil outlet port of described filter screen differential pressure transmitter device connected system high pressure main is provided with high-pressure ball valve.
The effect of petrol station high pressure accumulator supplements oil mass when being fluctuation and the oil engine quick acting of absorption pump output oil pressure.It is configured with oiling valve and scavenger valve, and during normal operation, oiling valve often leaves, and scavenger valve cuts out.Should first be closed by oiling valve during on-bne repair accumulator, scavenger valve can carry out service work after opening.
Preferably, described motor is fixed on support, and described support is provided with backing plate, and described backing plate is provided with the rubber sheet gasket of support motor.
This kind of structure makes the fixing more solid and reliable of motor, can reduce the wearing and tearing of electric machine casing simultaneously.
Accompanying drawing explanation
Fig. 1 of the present utility modelly faces structural representation;
Fig. 2 is side-looking structural representation of the present utility model;
Fig. 3 is plan structure schematic diagram of the present utility model.
1. electric control cubicle in figure, 2. cooler, 3. fuel tank, 4. return filter, 5. liquid temperature piezometer, 6. temperature transducer, 7. support rail, 8. high pressure accumulator, 9. the second stop valve, 10. instrumentation module, 11. pressure switches, 12. pump discharge clearance filters, 13. pressure gauges on the spot, 14. crossover subs, 15. plain joints, 16. heaters, 17. first stop valves, 18. gear pumps, 19. pipe clamps, 20. supports, 21. rubber sheet gaskets, 22. motors, 23. backing plates, 24. high-pressure ball valves, 25. air-strainer, 26. filler opening lugs, 27. oil outlet lugs, 28.H type pipe joint, 29. filter screen differential pressure transmitter devices.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, but is not the restriction to the utility model protection domain.
As Figure 1-3, a kind of EH petrol station for EH hydraulic control system, comprises fuel tank 3, main oil pump, high pressure accumulator 8, valve group, electric control cubicle 1 and pipeline fittings, fuel tank 3 is provided with oil-suction oil filter, return oil filter 4, heater 16, cooler 2, liquid temperature piezometer 5, temperature transducer 6, air-strainer 25, oil-feed hydraulic fluid port, sampling hydraulic fluid port and hydraulic fluid port of draining the oil, valve group connects fuel tank 3 and main oil pump import, and connects main oil pump outlet and system high pressure mother pipe, valve group is provided with pump discharge clearance filter 12, filter screen differential pressure transmitter device 29, stop valve, check valve, pressure switch 11, pressure gauge 13 and instrumentation module 10 on the spot, pump discharge clearance filter 12 is arranged in fuel tank 3, it is connected with main oil pump entrance by pipeline, stop valve comprises the first stop valve 17 and the second stop valve 9, first stop valve 17 is arranged between pump discharge clearance filter 12 and main oil pump entrance, filter screen differential pressure transmitter device 29 is connected between main oil pump outlet and the female pipe of system high pressure, and filter screen differential pressure transmitter device 29 is connected with instrumentation module 10 by pipeline, and main oil pump comprises motor 22, gear pump 18 and pipe joint, pipeline fittings comprises the valve for connecting components, joint, pipe clamp 19.Electric control cubicle 1 is fixed on fuel tank 3 side, is provided with support 20 bottom fuel tank 3, and main oil pump is arranged in support 20, and support 20 is provided with the support rail 7 supporting electric control cubicle 1.The pipeline that pressure switch 11 is connected with instrumentation module 10 is welded with the second stop valve 9, and pressure switch 11 is connected on the pipeline of instrumentation module 10 by plain joint 15.The pipeline that pressure gauge 13 is connected with instrumentation module 10 on the spot is also welded with the second stop valve 9, and pressure gauge 13 is connected on the pipeline of instrumentation module 10 by crossover sub 14 on the spot.Oil-suction oil filter precision is 80um, and return oil filter 4 precision is 3um, and return oil filter 4 inside is also provided with a bypass valve, and the oil return filter core filler opening place of return oil filter 4 is also provided with a pressure signal-transmitting machine.Oil-feed oil port is provided with filler opening lug 26, and oil port of draining the oil is provided with fuel outlet lug 27, and filler opening lug 26 and fuel outlet lug 27 are equipped with H type pipe joint 28.High pressure accumulator 8 is configured with oiling valve and scavenger valve, high pressure accumulator 8 is exported with fuel tank 3, return opening and pressure oil respectively by pipeline and is connected, and the pressure oil outlet port of filter screen differential pressure transmitter device 29 connected system high pressure main is provided with high-pressure ball valve 24.Motor 22 is fixed on support 20, and support 20 is provided with backing plate 23, and backing plate 23 is provided with the rubber sheet gasket 21 of support motor 22.
The utility model adopts independent fuel tank and double suction oil to filter; filter precision improves; all component life increases; be connected to by filter screen differential pressure transmitter device between main oil pump outlet and the female pipe of system high pressure, filter screen differential pressure transmitter device is connected with instrumentation module by pipeline, makes it can have the functions such as electric motor protecting, motor redundant, motor automatic switchover simultaneously; after motor stops; pressure can protect more than 1 hour, thus extends the shutdown dwell time, improves effects of energy saving and emission reduction.
Claims (8)
1., for an EH petrol station for EH hydraulic control system, comprise fuel tank, main oil pump, high pressure accumulator, valve group, electric control cubicle and pipeline fittings, is characterized in that: described fuel tank is provided with oil-suction oil filter, return oil filter, heater, cooler, liquid temperature piezometer, temperature transducer, air-strainer, oil-feed hydraulic fluid port, sampling hydraulic fluid port and hydraulic fluid port of draining the oil, described valve group connects fuel tank and main oil pump import, and connects main oil pump outlet and system high pressure mother pipe, valve group is provided with pump discharge clearance filter, filter screen differential pressure transmitter device, stop valve, check valve, pressure switch, pressure gauge and instrumentation module on the spot, described pump discharge clearance filter is arranged in fuel tank, it is connected with main oil pump entrance by pipeline, described stop valve comprises the first stop valve and the second stop valve, described first stop valve is arranged between pump discharge clearance filter and main oil pump entrance, described filter screen differential pressure transmitter device is connected between main oil pump outlet and the female pipe of system high pressure, and filter screen differential pressure transmitter device is connected with instrumentation module by pipeline, and described main oil pump comprises motor, gear pump and pipe joint, described pipeline fittings comprises the valve for connecting components, joint, pipe clamp.
2. a kind of EH petrol station for EH hydraulic control system according to claim 1, it is characterized in that: described electric control cubicle is fixed on fuel tank side, described tank bottoms is provided with support, and described main oil pump is arranged in support, and described support is provided with the support rail supporting electric control cubicle.
3. a kind of EH petrol station for EH hydraulic control system according to claim 1, it is characterized in that: the pipeline that described pressure switch is connected with instrumentation module is welded with the second stop valve, and described pressure switch is connected on the pipeline of instrumentation module by plain joint.
4. a kind of EH petrol station for EH hydraulic control system according to claim 1, it is characterized in that: the pipeline that described pressure gauge is on the spot connected with instrumentation module is also welded with the second stop valve, and described pressure gauge is on the spot connected on the pipeline of instrumentation module by crossover sub.
5. a kind of EH petrol station for EH hydraulic control system according to claim 1, it is characterized in that: described oil-suction oil filter precision is 80um, described return oil filter precision is 3um, described return oil filter inside is also provided with a bypass valve, and the oil return filter core filler opening place of return oil filter is also provided with a pressure signal-transmitting machine.
6. a kind of EH petrol station for EH hydraulic control system according to claim 1, it is characterized in that: described oil-feed oil port is provided with filler opening lug, described oil port of draining the oil is provided with fuel outlet lug, and described filler opening lug and fuel outlet lug are equipped with H type pipe joint.
7. a kind of EH petrol station for EH hydraulic control system according to claim 1, it is characterized in that: described high pressure accumulator is configured with oiling valve and scavenger valve, high pressure accumulator is exported with fuel tank, return opening and pressure oil respectively by pipeline and is connected, and the pressure oil outlet port of described filter screen differential pressure transmitter device connected system high pressure main is provided with high-pressure ball valve.
8. a kind of EH petrol station for EH hydraulic control system according to claim 1, it is characterized in that: described motor is fixed on support, described support is provided with backing plate, and described backing plate is provided with the rubber sheet gasket of support motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493007.7U CN204082707U (en) | 2014-08-29 | 2014-08-29 | A kind of EH petrol station for EH hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493007.7U CN204082707U (en) | 2014-08-29 | 2014-08-29 | A kind of EH petrol station for EH hydraulic control system |
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| Publication Number | Publication Date |
|---|---|
| CN204082707U true CN204082707U (en) | 2015-01-07 |
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|---|---|---|---|
| CN201420493007.7U Expired - Fee Related CN204082707U (en) | 2014-08-29 | 2014-08-29 | A kind of EH petrol station for EH hydraulic control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929001A (en) * | 2015-06-15 | 2015-09-23 | 宝鸡南车时代工程机械有限公司 | Hydraulic power unit for subway grinding car |
| CN106050813A (en) * | 2016-08-04 | 2016-10-26 | 上海新力机器厂 | Eh oil supply device |
| CN108027269A (en) * | 2015-09-15 | 2018-05-11 | Avl列表有限责任公司 | Coolable device for the through-flow process for measuring fluid |
| CN109115480A (en) * | 2018-09-03 | 2019-01-01 | 湖北文理学院 | Fuel oil oil pump performance pilot system, method and main system |
| CN109519235A (en) * | 2019-01-07 | 2019-03-26 | 阜阳华润电力有限公司 | A kind of steam turbine EH heating system for oil and method |
-
2014
- 2014-08-29 CN CN201420493007.7U patent/CN204082707U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929001A (en) * | 2015-06-15 | 2015-09-23 | 宝鸡南车时代工程机械有限公司 | Hydraulic power unit for subway grinding car |
| CN108027269A (en) * | 2015-09-15 | 2018-05-11 | Avl列表有限责任公司 | Coolable device for the through-flow process for measuring fluid |
| CN108027269B (en) * | 2015-09-15 | 2020-06-30 | Avl列表有限责任公司 | Coolable device for measuring a flow-through process of a fluid |
| CN106050813A (en) * | 2016-08-04 | 2016-10-26 | 上海新力机器厂 | Eh oil supply device |
| CN109115480A (en) * | 2018-09-03 | 2019-01-01 | 湖北文理学院 | Fuel oil oil pump performance pilot system, method and main system |
| CN109519235A (en) * | 2019-01-07 | 2019-03-26 | 阜阳华润电力有限公司 | A kind of steam turbine EH heating system for oil and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |