CN202867089U - Normal-close electromagnet pressure-reducing control off-course braking system for wind generating unit - Google Patents
Normal-close electromagnet pressure-reducing control off-course braking system for wind generating unit Download PDFInfo
- Publication number
- CN202867089U CN202867089U CN2012205908207U CN201220590820U CN202867089U CN 202867089 U CN202867089 U CN 202867089U CN 2012205908207 U CN2012205908207 U CN 2012205908207U CN 201220590820 U CN201220590820 U CN 201220590820U CN 202867089 U CN202867089 U CN 202867089U
- Authority
- CN
- China
- Prior art keywords
- electromagnet
- spring
- plunger
- wind
- brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Landscapes
- Braking Arrangements (AREA)
Abstract
A normal-close electromagnet pressure-reducing control off-course braking system for a wind generating unit is formed by a braking cylinder body 1, a plunger 2, a braking spring 3, a bolt 4, a bearing seat 5, a two-position three-way electromagnet 6, a decompression oil tank 7, a single-way valve 8, an electromagnet 9, and a pressure cylinder barrel 10 in a combined mode. The braking spring 3 is arranged in an inner space of an upper flat face of the plunger 2 and the top of the cylinder body 1. When a host machine runs, the electromagnet 6 loses electricity, a lower portion containing cavity between the plunger 2 and the braking cylinder body 1 is connected with the decompression oil tank 7, and the pressure cylinder barrel 10 is connected with the other interface of the two-position three-way electromagnet 6 and is closed. Braking force of a cabin is provided by the braking spring 3. When wind direction changes, off-course is needed to aim at the wind direction, the electromagnet 6 obtains the electricity and changes the direction, the electromagnet 9 obtains the electricity and pressed downwards to generate pressure which is acted on a lower portion ring-shaped area of the plunger 2, part of spring force of the braking force 3 is offset, remained spring force provides stable damping for the cabin when the cabin yaws, and stable rotation of the cabin is ensured.
Description
One, technical field:
The present invention relates to a kind of wind power generating set Normally closed type electromagnet Decompression Controlling yawing brake system.This Normally closed type electromagnet decompression yawing brake system especially is adapted to medium-and-large-sized pitch-controlled wind-driven generator group, also is adapted to wind power generating set and the machinery of other type.
Two, background technique:
Human in order to restructure the use of energy, adopt as soon as possible the clean energy resource service human, wind generating technology is rapidly development.Along with the development of this technology, in order to improve the generating efficiency of wind power generating set, hydraulic transmission and control system are widely used in the control of impeller driftage.
In existing impeller driftage control, mainly be the stable braking that will guarantee when wind-driven generator work the cabin, and the stable damping force of when the impeller yawing rotation, the cabin being rotated, guarantee the rotation of calming down in cabin.In order to reach this function, people have adopted hydraulic brake to satisfy its usage requirement.In this class hydraulic braking sytem of prior art, mostly adopted normally opened brake: namely break often leaves, only have when hydraulic system is supplied with high pressure oil to the epicoele of its plunger, the plunger of master cylinder is under the effect of hydraulic oil, move down the compression braking plate, the cabin has been fixed in braking, and impeller is aimed at wind direction rotary, drives generator and sends electric power; When variation has occured wind direction, need impeller to go off course when aiming at wind direction, hydraulic system supplies with low pressure oil can only for the epicoele of master cylinder, so that the cabin drives the position that forwards reposefully appointment to by Yawing mechanism under the effect of certain sassafras damping that rubs.This normally opened brake system requirements hydraulic control system is long-term dynamics pressurize operation when running of wind generating set, so that the temperature of hydraulic power unit is very high.Often leak in actual use, the direct result of this state is exactly: system's dwell time shortens again energy transform into heat energy heating hydraulic power unit of---motor pump frequent starting---motor pump work done; System by fluid during constantly heating and motor pump constantly start reduced viscosity---the sealability of system further reduces; Sealing accelerated ageing and destruction add that integrated package makes its original seal break-off from the different thermal expansion that the materials variances of solenoid valve and each external connector causes, and increase leaks.So that the wind field attendant often will shut down maintenance and it is changed, seriously had influence on the generating efficiency of wind field.
Three, summary of the invention:
Purpose of the present invention be exactly to develop a kind of cost approach, simple and reliable, can effectively ensure when wind power generating set generating running the stable braking to the cabin; provide stable damping to the cabin in the time of going off course in the cabin again, guarantee that the cabin stablizes the yawing brake system of rotating Normally closed type electromagnet Decompression Controlling.
Solution of the present invention is: this braking system is by brake cylinder body 1, plunger 2, and brake spring 3, bolt 4, spring seat 5, two-bit triplet solenoid valve 6, pressure release fuel tank 7, one-way valve 8, electromagnet 9 and supercharging cylinder barrel 10 are formed by combining.It is characterized in that: brake spring 3 is contained in the upper plane of plunger 2 and the inner space at cylinder body 1 top, and top is passed through spring seat 5 axially locating and regulated the precompressed amount by bolt 4; The armature of electromagnet 9 lengthens, and is finish-machined to the supercharging plunger that cooperates with the guide support hole on supercharging cylinder barrel 10 tops, with the armature location and installation on the upper plane of supercharging cylinder barrel 10; In the dead electricity position of two-bit triplet solenoid valve 6, plunger 2 is connected with pressure release fuel tank 7 by two-bit triplet solenoid valve 6 with bottom cavity volume between the brake cylinder body 1; Two-bit triplet solenoid valve 6 current potential, plunger 2 is connected with supercharging cylinder barrel 10 by two-bit triplet solenoid valve 6 with bottom cavity volume between the brake cylinder body 1.Its working principle and process are: when running of wind generating set generates electricity, the stable braking force in cabin is provided by brake spring 3; Under this kind operating mode, the bottom cavity volume of plunger 2 and brake cylinder body 1 is connected with pressure release fuel tank 7 by the dead electricity position of two-bit triplet solenoid valve 6, and the bottom cavity volume of plunger 2 and brake cylinder body 1 is without pressure.When variation has occured wind direction, need driftage to aim at wind direction, slightly start prior to yaw motor, two-bit triplet solenoid valve 6 gets electric commutation, has been communicated with bottom cavity volume and the supercharging cylinder barrel 10 of plunger 2 with brake cylinder body 1; Then electromagnet 9 gets electric, promote in the bottom cavity volume that pressure that its armature moves down generation has been directly delivered to plunger 2 and brake cylinder body 1, act on the lower annular area of plunger 2, offset the spring force of part brake spring 3, provide stable damping to the cabin when remaining spring force is gone off course in the cabin, yaw motor starts the stable revolution of band engine compartment thereupon.Driftage finishes, and two-bit triplet solenoid valve 6 dead electricity have been cut off plunger 2 and the bottom cavity volume of brake cylinder body 1 and being connected of supercharging cylinder barrel 10, the earth pressure release of the bottom cavity volume of plunger 2 and brake cylinder body 1; Electromagnet 9 is dead electricity simultaneously, the return that under the return spring effect that it carries, makes progress, and the grease of loss can pass through one-way valve 8 from the 7 interior absorptions of pressure release mailbox in the process of electromagnet 9 returns in the course of the work; At this moment, fully by the stable braking in 3 pairs of cabins of brake spring.The working stroke of electromagnet 9 can be regulated automatically.Because the plunger of off-course brake 2 amount of movement under braking and two kinds of operating modes of yawing rotation is very little, does not need how many flows, and only need to can satisfy usage requirement by the increase and decrease of pressure.After using the long time, a small amount of loss appears in the fluid in the pressure release mailbox 7, can when regular maintenance, pass through artificial supplementation; Also alarm switch can be set, so that the timely topping up of attendant.
It is Normally closed type magnet control braking system that the present invention changes existing high pressure braking system open in usual, it has reduced energy consumption, does not have temperature rise, has avoided the leakage that may bring because of temperature rise.It is more energy-conservation and reliable than original technology.More can prove conclusively the working environment of the normal operation of wind power generating set and generating efficiency and main frame not by oil pollution.If at the bottom cavity volume of plunger 2 and brake cylinder body 1 and supercharging cylinder barrel 10 and the higher fluid of pressure release fuel tank 7 interior perfusion viscosity, then more reliable.
Four, description of drawings:
Accompanying drawing 1 is structure principle chart of the present invention.
Five, embodiment:
The specific embodiment of the present invention is: when the wind power generating set normal power generation is moved, the bottom cavity volume of plunger 2 and brake cylinder body 1 is connected with pressure release fuel tank 7 by the dead electricity position of two-bit triplet solenoid valve 6, the bottom cavity volume of plunger 2 and brake cylinder body 1 is without pressure, by the stable braking in 3 pairs of cabins of brake spring.When variation has occured wind direction; need driftage to aim at wind direction; slightly start prior to yaw motor; two-bit triplet solenoid valve 6 gets electric commutation, and electromagnet 9 must be electric then, and the pressure that moves down generation by electromagnet 9 armature has been directly delivered in the bottom cavity volume of plunger 2 and brake cylinder body 1; act on the lower annular area of plunger 2; offset the spring force of part brake spring 3, provide stable damping to the cabin when remaining spring force is gone off course in the cabin, guaranteed the stable revolution in cabin.Driftage finishes, and two-bit triplet solenoid valve 6 dead electricity have been cut off plunger 2 and the bottom cavity volume of brake cylinder body 1 and being connected of supercharging cylinder barrel 10, the earth pressure release of the bottom cavity volume of plunger 2 and brake cylinder body 1; Electromagnet 9 is dead electricity simultaneously, and the return that makes progress under the return spring effect that it carries can pass through one-way valve 8 from the grease of pressure release mailbox 7 interior absorption losses in electromagnet 9 return processes, ready for work next time; At this moment, get back to again the braking force that is provided by brake spring 3 fully damped condition is stablized in the cabin.
Claims (7)
1. a wind-powered electricity generation unit is with normally closed electromagnet Decompression Controlling yawing brake system, by brake cylinder body (1), plunger (2), brake spring (3), bolt (4), spring seat (5), two-bit triplet solenoid valve (6), pressure release fuel tank (7), one-way valve (8), electromagnet (9) and supercharging cylinder barrel (10) are formed by combining; It is characterized in that: brake spring (3) is contained in the upper plane of plunger (2) and the inner space at cylinder body (1) top, and top is passed through spring seat (5) axially locating and regulated the precompressed amount by bolt (4); The armature of electromagnet (9) lengthens, and is finish-machined to the supercharging plunger that cooperates with the guide support hole on supercharging cylinder barrel (10) top, with the armature location and installation on the upper plane of supercharging cylinder barrel (10); In the dead electricity position of two-bit triplet solenoid valve (6), plunger (2) is connected with pressure release fuel tank (7) by two-bit triplet solenoid valve (6) with bottom cavity volume between the brake cylinder body (1); Two-bit triplet solenoid valve (6) current potential, plunger (2) is connected with supercharging cylinder barrel (10) by two-bit triplet solenoid valve (6) with bottom cavity volume between the brake cylinder body (1).
2. a kind of wind-powered electricity generation unit according to claim 1 is with normally closed electromagnet Decompression Controlling yawing brake system, and it is characterized in that: brake spring (3) is the dish spring.
3. a kind of wind-powered electricity generation unit according to claim 1 is with normally closed electromagnet Decompression Controlling yawing brake system, and it is characterized in that: brake spring (3) is the cylinder spring.
4. a kind of wind-powered electricity generation unit according to claim 1 is characterized in that with normally closed electromagnet Decompression Controlling yawing brake system: brake spring (3) is the cone spring.
5. a kind of wind-powered electricity generation unit according to claim 1 is characterized in that: to supercharging plunger (10) setting position alarm switch with normally closed electromagnet Decompression Controlling yawing brake system.
6. a kind of wind-powered electricity generation unit according to claim 1 is characterized in that with normally closed electromagnet Decompression Controlling yawing brake system: electromagnet (9) with the armature location and installation on the lower plane of supercharging cylinder barrel (10).
7. a kind of wind-powered electricity generation unit according to claim 1 is characterized in that with normally closed electromagnet Decompression Controlling yawing brake system: electromagnet (9) with the armature location and installation on the side of supercharging cylinder barrel (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205908207U CN202867089U (en) | 2012-11-11 | 2012-11-11 | Normal-close electromagnet pressure-reducing control off-course braking system for wind generating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205908207U CN202867089U (en) | 2012-11-11 | 2012-11-11 | Normal-close electromagnet pressure-reducing control off-course braking system for wind generating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867089U true CN202867089U (en) | 2013-04-10 |
Family
ID=48033812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205908207U Expired - Fee Related CN202867089U (en) | 2012-11-11 | 2012-11-11 | Normal-close electromagnet pressure-reducing control off-course braking system for wind generating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867089U (en) |
-
2012
- 2012-11-11 CN CN2012205908207U patent/CN202867089U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shang et al. | A novel electro hydrostatic actuator system with energy recovery module for more electric aircraft | |
| CN102312828A (en) | Start-stop control method for double air compressor of locomotive | |
| CN102042179B (en) | The wind power generating set with vertical shaft that a kind of fan blade is collapsible, oil hinders speed governing and control | |
| CN202867092U (en) | Normally closed type counterweight pressure-boost electromagnetic return braking system for wind turbine generator | |
| CN103148135A (en) | Yaw brake used for diaphragm-type wind generator set | |
| CN202867088U (en) | Normally closed type counterweight pressure reducing controlling yaw braking system for wind turbine generator | |
| CN103836011A (en) | Rapid pressurization system of hydraulic energy accumulator | |
| CN202867089U (en) | Normal-close electromagnet pressure-reducing control off-course braking system for wind generating unit | |
| CN102900610A (en) | Normally closed type heavy punch pressure reduction control yawing braking system used for wind turbine generator | |
| WO2016063142A1 (en) | Circulating water power plant | |
| CN202867093U (en) | Normally closed type counterweight pressure-boost controlling yaw braking system for wind turbine generator | |
| CN201925249U (en) | High-efficient energy-saving device of hydraulic station | |
| CN104481940A (en) | Hydraulic yawing brake system of wind driven generator | |
| CN102913387A (en) | Normally-closed type heavy hammer pressurization control yaw braking system for wind turbine generator | |
| CN103670922A (en) | Yaw brake hydraulic system of wind driven generator | |
| CN102913389A (en) | Normally-closed type electromagnet decompression control yaw braking system for wind turbine generator | |
| CN208793159U (en) | A kind of wind generating set yaw braking system | |
| CN205345348U (en) | Aircraft safety and energy -conserving dual -purpose system with ram air turbine | |
| CN102797632A (en) | Yaw control and braking hydraulic system for wind-driven generator unit | |
| CN202867091U (en) | Normally closed type low-pressure controlling yaw braking system for wind generating set | |
| CN103061977A (en) | Normally closed type low-pressure control deviation braking system used for wind generating set | |
| CN102937070A (en) | Normally closed type counter weight pressure boost electromagnetism return braking system for wind turbine generator | |
| CN102832634B (en) | Combined type power stabilizing system based on super-capacitor and high-capacity energy storing device | |
| CN203230756U (en) | Decompression-proof yaw brake hydraulic system for wind generating set | |
| CN204226115U (en) | A kind of impeller Direct driver wind-driven generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131111 |