CN102116256A - Safe pressurizer of wind power generation hydraulic system - Google Patents
Safe pressurizer of wind power generation hydraulic system Download PDFInfo
- Publication number
- CN102116256A CN102116256A CN201010530070XA CN201010530070A CN102116256A CN 102116256 A CN102116256 A CN 102116256A CN 201010530070X A CN201010530070X A CN 201010530070XA CN 201010530070 A CN201010530070 A CN 201010530070A CN 102116256 A CN102116256 A CN 102116256A
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- pipeline
- accumulator
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- oil
- safe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a safe pressurizer of a wind power generation hydraulic system, which is applied to the technical field of wind power generation, and comprises an oil pump, and an accumulator connected with an oil pump pipeline; an oil inlet of a spindle brake unit and an oil inlet of a yawing brake unit are arranged on the oil pump and an accumulator pipeline in sequence; a manual pump branch connected with a first interface of an external oil tank through a manual pump pipeline, a first adjustable throttle valve, a throttle valve branch connected with a second interface of the external oil tank through a throttle valve pipeline, and a first spillover valve branch connected with the second interface of the external oil tank through a first spillover valve pipeline are arranged between the oil inlet of the yawing brake unit and the accumulator pipeline in sequence. When oil supply of the pipeline of the accumulator adopted by the safe pressurizer of the wind power generation hydraulic system is cut off, the hydraulic oil stored in the pipeline is released and flows into a spindle brake device and a yawing brake device so as to guarantee the normal work of the two devices; and when a fan is stopped for overhauling, the pressure of the accumulator can supplement the pressure loss in the system to play the role of pressurizing.
Description
Technical field
The invention belongs to technical field of wind power generation, relate to a kind of wind generating unit, relate in particular to a kind of wind power generation hydraulic security of system pressurizer.
Background technique
The hydraulic brake system of wind-driven generator mainly comprises main shaft braking device and driftage braking device.
Break down or motor need intermittently shut down rest the time in the electric-motor pump group, tend to, influence the main shaft braking device and the proper functioning of the braking device of going off course because the hydraulic oil in the hydraulic system pipeline is not enough or unstable; In addition, in the process of maintenance, often cause pressure reduction in the pipeline, make that main shaft braking device and driftage braking device can't proper functioning because the hydraulic oil in the hydraulic system runs off.
A kind of wind power generation hydraulic security of system pressurizer need be provided; break down in the electric-motor pump group, when motor need intermittently be shut down rest; guarantee the pressure stability of the hydraulic oil in main shaft braking device and the driftage braking device, make that the hydraulic system energy is safe, normally work.
Summary of the invention
Technical problem to be solved by this invention provides a kind of wind power generation hydraulic security of system pressurizer, guarantee main shaft braking device and driftage braking device safe, normally work, thereby overcome the defective that oil pressure instability of the prior art easily causes circuit failure.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of wind power generation hydraulic security of system pressurizer, comprise oil pump, the accumulator that is connected with the oil pump pipeline, be disposed with main shaft brake units filler opening and driftage brake units filler opening on oil pump and the accumulator pipeline, be disposed with the hand pump branch road that is connected external fuel tank first interface by the hand pump pipeline between driftage brake units filler opening and the accumulator pipeline, first adjustable restrictive valve, the throttle valve branch road that connects external fuel tank second interface by the throttle valve pipeline, and the first relief valve branch road that connects external fuel tank second interface by the first relief valve pipeline.
Be provided with second relief valve between driftage brake units filler opening of the present invention and external fuel tank first interface.
Be disposed with the filter and first one-way valve on oil pump of the present invention and the main shaft brake units filler opening pipeline.
The present invention also comprises pressure measuring tie-in, and the pressure measuring tie-in pipeline is connected to the pipeline between the accumulator and first relief valve.
Hand pump of the present invention is connected to that pipeline is provided with second one-way valve between oil pump and the accumulator.
Adopt the beneficial effect of technique scheme:
Accumulator of the present invention, when the electric-motor pump group breaks down, motor needs intermittently to shut down to have a rest, during the pipeline oil-break, the hydraulic oil that stores in the accumulator discharges, flow into main shaft brake units and driftage brake units, to guarantee the proper functioning of these two unit; When blower fan when shutting down maintenance; motor does not start; each electromagnetism also all must not; start hand pump to main shaft brake and driftage braking device fuel feeding; make main shaft and driftage gear ring skidding, simultaneously will be to accumulator oiling pressure accumulation, in the process of whole maintenance; the pressure loss of the pressure of accumulator in can replenishment system plays the pressurize effect.
Description of drawings
Fig. 1 is a system schematic of the present invention.
Wherein:
010-oil pump, 011-filter, 012-the first one-way valve, 013-the second adjustable restrictive valve, 020-accumulator, 021-the first relief valve, 022-the first adjustable restrictive valve, 031-main shaft brake in-line 032---driftage brake in-line 041-external fuel tank first interface 042-external fuel tank second interface 043-the second relief valve 050-hand pump 051-the second one-way valve 060-pressure measuring tie-in.
Embodiment
Below in conjunction with specific embodiment the present invention is further described:
See also Fig. 1, it is a system schematic of the present invention, comprises oil pump 010, accumulator 020, external fuel tank and hand pump 050.
Pipeline is connected between oil pump 010 and the accumulator 020, is disposed with filter 011, first one-way valve 012, main shaft brake units in-line 031, driftage brake units in-line 032, hand pump branch road, first adjustable restrictive valve 013, throttle valve branch road and the first relief valve branch road connecting on the pipeline of oil pump 010 and accumulator 020.
Main shaft brake units in-line 031 is connected that the tie point on the pipeline is the P point between oil pump 010 and the accumulator 020; Driftage brake units in-line 032 is connected that the tie point on the pipeline is the Q point between oil pump 010 and the accumulator 020.
Be provided with second relief valve 043 between driftage brake units filler opening Q point and external fuel tank first interface 041.
The hand pump branch road is the bye-pass that pipeline is connected to external fuel tank first interface 041 between the driftage brake units in-line 032 and first adjustable restrictive valve 013.This bye-pass is disposed with the hand pump 050 and second one-way valve 051 from external fuel tank first interface 041.The hand pump branch road is connected that the tie point on the pipeline is the N point between oil pump 010 and the accumulator 020.
The throttle valve branch road is the bye-pass that pipeline is connected to external fuel tank second interface 042 between first adjustable restrictive valve 013 and the accumulator 020, and this branch road is provided with second adjustable restrictive valve 022.The throttle valve branch road is connected that the tie point on the pipeline is the K point between oil pump 010 and the accumulator 020.
The first relief valve branch road is another bye-pass that pipeline is connected to external fuel tank second interface 042 between first adjustable restrictive valve 013 and the accumulator 020, and this branch road is provided with first relief valve 021.The first relief valve branch road is connected that the tie point on the pipeline is the L point between oil pump 010 and the accumulator 020.
Second adjustable restrictive valve 022 by the pipeline connection between first relief valve 021 and external fuel tank second interface 042 to external fuel tank second interface 042.
Safe pressurizer in the present embodiment also comprises pressure measuring tie-in 060, and pressure measuring tie-in 060 pipeline is connected to the pipeline between the accumulator 020 and the first relief valve branch road.Pressure measuring tie-in 060 is measured hydraulic system and whether is in normal working state.
In the blower fan operation process, second adjustable restrictive valve 022 is closed fully, the hydraulic oil that is provided by oil pump 010 arrives the K point through first adjustable restrictive valve 013, because second adjustable restrictive valve 013 is closed fully, hydraulic oil can only flow to the L point, the setting pressure of first relief valve 021 is 200bar, and the setting pressure of second relief valve 043 is 180bar, so can not surpass 180bar through the hydraulic fluid pressure after the Q point, first relief valve 021 can't be opened, and stores so hydraulic oil enters accumulator 020.
Owing to break down or motor needs intermittently to shut down and has a rest can't fuel feeding the time, the hydraulic oil that stores in the accumulator 020 will discharge, and flow into main shaft brake units and driftage brake units, to guarantee the proper functioning of these two unit when oil pump 010.
In addition; when blower fan when shutting down maintenance; motor does not start; start hand pump 050; the hydraulic oil that comes out from oil pump 010 can arrive N point, Q point and P point through second one-way valve 051; to main shaft brake units and driftage brake units fuel feeding, make main shaft and driftage gear ring skidding, mainly be to accumulator 020 oiling pressure accumulation simultaneously.
In the process of whole maintenance, the pressure loss of the pressure of accumulator 020 in can replenishment system, play the pressurize effect, the one-way valve that cooperates main shaft brake units in-line 031 and driftage brake units in-line 032, the pressure of assurance main shaft brake oil cylinder and driftage brake oil cylinder can not reduce, for the reliability that main shaft brakes and driftage is braked provides double insurance.
Above-mentioned embodiment is exemplary, be in order better to make those skilled in the art can understand this patent, can not be interpreted as it is the restriction that this patent is comprised scope, so long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope that this patent comprises.
Claims (5)
1. wind power generation hydraulic security of system pressurizer, it is characterized in that: comprise oil pump, the accumulator that is connected with the oil pump pipeline, be disposed with main shaft brake units filler opening and driftage brake units filler opening on oil pump and the accumulator pipeline, be disposed with the hand pump branch road that is connected external fuel tank first interface by the hand pump pipeline between driftage brake units filler opening and the accumulator pipeline, first adjustable restrictive valve, the throttle valve branch road that connects external fuel tank second interface by the throttle valve pipeline, and the first relief valve branch road that connects external fuel tank second interface by the first relief valve pipeline.
2. safe pressurizer according to claim 1 is characterized in that: be provided with second relief valve between described driftage brake units filler opening and external fuel tank first interface.
3. safe pressurizer according to claim 1 is characterized in that: be disposed with the filter and first one-way valve on described oil pump and the main shaft brake units filler opening pipeline.
4. safe pressurizer according to claim 1 is characterized in that: also comprise pressure measuring tie-in, described pressure measuring tie-in pipeline is connected to the pipeline between the described accumulator and first relief valve.
5. safe pressurizer according to claim 1 is characterized in that: described hand pump is connected to that pipeline is provided with second one-way valve between oil pump and the accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010530070XA CN102116256A (en) | 2010-11-03 | 2010-11-03 | Safe pressurizer of wind power generation hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010530070XA CN102116256A (en) | 2010-11-03 | 2010-11-03 | Safe pressurizer of wind power generation hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN102116256A true CN102116256A (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010530070XA Pending CN102116256A (en) | 2010-11-03 | 2010-11-03 | Safe pressurizer of wind power generation hydraulic system |
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| CN (1) | CN102116256A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797632A (en) * | 2012-09-05 | 2012-11-28 | 杨洁 | Yaw control and braking hydraulic system for wind-driven generator unit |
| CN102817777A (en) * | 2012-08-31 | 2012-12-12 | 杨洁 | Yawing and hub braking hydraulic system for wind driven generator set |
| CN109386511A (en) * | 2018-12-24 | 2019-02-26 | 上海电气液压气动有限公司 | A kind of hydraulic control system in wind power equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004057522A1 (en) * | 2004-10-08 | 2006-04-13 | Bosch Rexroth Aktiengesellschaft | Braking device for wind power plant has 3/2-path seat valve, via which pressure cavity can be connected to pressure fluid source and tank vent to operate brakes |
| JP2006307653A (en) * | 2005-04-26 | 2006-11-09 | Fuji Heavy Ind Ltd | Horizontal axial windmill |
| CN201546897U (en) * | 2009-11-24 | 2010-08-11 | 新华威尔液压系统(上海)有限公司 | Hydraulic brake control system for wind driven generator group |
| CN201858081U (en) * | 2010-11-03 | 2011-06-08 | 上海电气液压气动有限公司 | Safety pressure-retaining device of wind power generation hydraulic system |
-
2010
- 2010-11-03 CN CN201010530070XA patent/CN102116256A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004057522A1 (en) * | 2004-10-08 | 2006-04-13 | Bosch Rexroth Aktiengesellschaft | Braking device for wind power plant has 3/2-path seat valve, via which pressure cavity can be connected to pressure fluid source and tank vent to operate brakes |
| JP2006307653A (en) * | 2005-04-26 | 2006-11-09 | Fuji Heavy Ind Ltd | Horizontal axial windmill |
| CN201546897U (en) * | 2009-11-24 | 2010-08-11 | 新华威尔液压系统(上海)有限公司 | Hydraulic brake control system for wind driven generator group |
| CN201858081U (en) * | 2010-11-03 | 2011-06-08 | 上海电气液压气动有限公司 | Safety pressure-retaining device of wind power generation hydraulic system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817777A (en) * | 2012-08-31 | 2012-12-12 | 杨洁 | Yawing and hub braking hydraulic system for wind driven generator set |
| CN102797632A (en) * | 2012-09-05 | 2012-11-28 | 杨洁 | Yaw control and braking hydraulic system for wind-driven generator unit |
| CN109386511A (en) * | 2018-12-24 | 2019-02-26 | 上海电气液压气动有限公司 | A kind of hydraulic control system in wind power equipment |
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Application publication date: 20110706 |