CN202417822U - Fan braking equipment - Google Patents
Fan braking equipment Download PDFInfo
- Publication number
- CN202417822U CN202417822U CN2012200595615U CN201220059561U CN202417822U CN 202417822 U CN202417822 U CN 202417822U CN 2012200595615 U CN2012200595615 U CN 2012200595615U CN 201220059561 U CN201220059561 U CN 201220059561U CN 202417822 U CN202417822 U CN 202417822U
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- CN
- China
- Prior art keywords
- solenoid valve
- storage battery
- pressure solenoid
- supply circuit
- hydraulic
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- 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 - Lifetime
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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
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- Wind Motors (AREA)
Abstract
The utility model provides fan braking equipment which comprises a hydraulic pressure source, a pressure solenoid valve, a power supply circuit, a braking device and a storage battery, wherein the hydraulic pressure source and the braking device are connected by a hydraulic pipeline; the pressure solenoid valve is positioned in the hydraulic pipeline between the hydraulic pressure source and the braking device; the power is supplied by the power supply circuit; and the storage battery is connected with the pressure solenoid valve in parallel. The fan braking equipment provided by the utility model has the advantages of high respond speed, high reliability and favorable operability and practical applicability, the problem in the prior art can be solved with low cost under the condition of fully utilizing the traditional resources, and the fan system is guaranteed to safely operate.
Description
Technical field
The utility model relates to wind power generation field, particularly, relates to a kind of blower fan brake appts.
Background technique
The wind-driven generator working principle is: the kinetic energy of wind (being the kinetic energy of air) changes into the kinetic energy of generator amature, and the kinetic energy of rotor changes into electric energy again.Wind-power electricity generation does not have fuel problem, can not produce radiation or atmospheric pollution yet, therefore enjoys countries in the world to pay attention to.
China utilizes wind-power electricity generation since the fifties, and to the beginning of the eighties, it is ripe and stable that the minitype wind power generation technology is tending towards.In recent years, the development of China wind-power electricity generation is very fast, has been selected in wind resource abundant area such as Guangdong, Hainan, Fujian, Shandong, Inner Mongol, Xinjiang and has built wind energy turbine set and greatly develop wind-powered electricity generation.
In wind generating technology; Blower fan self emergency shutdown urgent feathering of situation lower blade and water brake are extremely important, and under situation such as electric network power-fail and major loop tripping operation, when especially being accompanied by the strong wind wind regime; It is just enough to carry out air damping reduction rotating speed by the blade feathering; The brake of high speed shaft hydraulic machinery should not moved, and to reduce brake braking suddenly as far as possible the whole wind group of motors is caused serious impact, and the collapsing force of back high wind to unit of avoiding braking.
But in China's wind resource abundant area, weather conditions are abominable mostly.For example, the wind energy turbine set of Guangdong Coastal.Salt spray corrosion that the coastal area is serious and pollution, often tripping operation a little less than the electrical network that causes wind energy turbine set to insert is highly brittle adds the annual invasion that all can receive typhoon, gives the wind-powered electricity generation unit deleterious impact of moving.When electrical network trips, because the solenoid valve dead electricity of control braking device makes the hydraulic pipe line conducting that drives braking device, blade can not directly carry out the brake of high speed shaft hydraulic machinery automatically along slurry situation appears, serious even the wind-powered electricity generation unit is damaged.
In the existing technology, the centrally connected power supply scheme of making the standby power supply of solenoid valve with diesel generator is provided.But diesel generator is from starting to power supply, and the response time is long, equipment reliability is poor, not can solve the problem of above-mentioned existence, and structure, maintenance cost are high.
The model utility content
Under electric network fault and wind-powered electricity generation unit main circuit power supply trip condition; The high speed shaft hydraulic machinery must be braked this logic, and injury is very serious to equipment when the special climate condition; For example during the typhoon under the electrical breakdown situation, mechanical brake will cause gear-box, blade and yaw system to damage because of huge energy that can't the removal typhoon.Even under normal conditions, mechanical brake was difficult for displaying in the injury short time to the wind-powered electricity generation unit, also can cause the reduction of plant machinery intensity but serious impact adds tired injury long-term accumulation, shortened service life of equipment.The utility model that proposes at least to these problems, solves just.
According to the utility model; A kind of blower fan brake appts is provided, and this equipment comprises: hydraulic power, pressure solenoid valve, current supply circuit and braking device, and hydraulic power links to each other through hydraulic pipe line with braking device; In the hydraulic pipe line of pressure solenoid valve between hydraulic power and braking device; And by the current supply circuit power supply, equipment also comprises storage battery, and this storage battery is parallelly connected with pressure solenoid valve.
Further, this equipment also comprises: relay, and the circuit of this relay between storage battery and pressure solenoid valve, and link to each other with current supply circuit, be used for the said circuit of conducting under the situation of current supply circuit dead electricity.
Further, hydraulic power comprises: oil hydraulic pump and accumulator.
Further, storage battery has identical electric pressure with current supply circuit.
Further, storage battery is the storage battery of direct current 24V.
The blower fan brake appts that provides through the utility model; Adopt storage battery and pressure solenoid valve through the direct-connected mode of circuit; Under the situation of current supply circuit fault or dead electricity; Can supply power to pressure solenoid valve through storage battery, preventing under the situation of current supply circuit fault or dead electricity, this pressure solenoid valve conducting and the damage that causes braking device to brake the blower fan unit is caused.Diesel generator of the prior art need start before the generating, and reliability is low, needs to safeguard.Compare in this; The blower fan brake appts speed of response that the utility model provides is fast, and reliability is high, can under making full use of the situation of existing resource, solve the problem that exists in the existing technology with lower cost; Guarantee the blower fan system safe operation, have good operability and practicability.
Description of drawings
Fig. 1 is a kind of blower fan brake appts illustrative embodiments block diagram according to the utility model;
Fig. 2 is the another kind of blower fan brake appts illustrative embodiments block diagram according to the utility model; And
Fig. 3 is the another kind of blower fan brake appts illustrative embodiments block diagram according to the utility model.
Embodiment
Below, preferred embodiment is elaborated to the utility model in conjunction with accompanying drawing.Wherein, solid line representes that hydraulic pipe line connects in the accompanying drawing, and the dotted line indication circuit connects.
Fig. 1 is a kind of blower fan brake appts illustrative embodiments block diagram according to the utility model.As shown in Figure 1, a kind of blower fan brake appts 100 that the utility model provides can comprise: hydraulic power 102, pressure solenoid valve 106, current supply circuit 108 and braking device 110; Wherein, current supply circuit 108 can be connected through circuit with pressure solenoid valve 106, can be used for pressure solenoid valve 106 power supplies; Hydraulic power 102 is used for to whole hydraulic system lasting hydraulic power being provided; Braking device 110 is driven by hydraulic power 102; And the two can be connected through hydraulic pipe line; Pressure solenoid valve 106 is set on the hydraulic pipe line between hydraulic power 102 and the braking device 110, can controls the on/off of hydraulic pipe line by the ON/OFF of pressure solenoid valve 106; Wherein, when pressure solenoid valve 106 powered on, it was in closed condition; Hydraulic pipe line breaks off, and braking device 110 is not worked, when pressure solenoid valve 106 dead electricity; It is in open mode, the hydraulic pipe line conducting, and the hydraulic pressure in the pipeline can drive braking device 110 and carry out brake; This equipment also comprises storage battery 112, and this storage battery 112 is parallelly connected with pressure solenoid valve 106, can the same effects of playing pressure solenoid valve 106 power supplies with current supply circuit 108.
Through above-mentioned blower fan brake appts, under the situation of current supply circuit fault or dead electricity, can supply power to pressure solenoid valve through storage battery, device responds speed is fast, and reliability is high, guarantees the blower fan system safe operation.
Below, in conjunction with Fig. 2, the blower fan brake appts that the utility model is provided further specifies.
Fig. 2 is the another kind of blower fan brake appts illustrative embodiments block diagram according to the utility model.As shown in Figure 2, hydraulic power 102 can further comprise oil hydraulic pump 1022 and accumulator 1024; Accumulator 1024 can be connected through hydraulic pipe line with oil hydraulic pump 1022.Wherein, accumulator 1024 is a kind of energy savings devices commonly used in the hydropneumatic system.It is in due course with the energy in the system change into compression can or potential energy store, when system needs, will compress ability or potential energy again and change ability such as hydraulic pressure or air pressure into and discharge, mend supply system again.When system's instantaneous pressure increased, it can absorb the energy of this part.Guarantee that whole system pressure is normal.Through accumulator 1024, under the situation of pressure solenoid valve 106 control hydraulic pipe line conductings,, oil hydraulic pump 1022 can not guarantee to discharge enough hydraulic pressure abilities even not working yet, guarantee carrying out smoothly of brake.
As giving an example, the braking of high speed shaft hydraulic machinery is adopted to build and is pressed the brake type.The type is when operation and halted state, and oil hydraulic pump 1022 is worked accumulator 1024 energy storages with pressure solenoid valve 106.Pressure solenoid valve 106 is in off state when powering on, not conducting of hydraulic pipe line this moment, and braking device 110 unclamps (promptly not working).Under the emergency shutdown failure condition; Pressure solenoid valve 106 breaks off with current supply circuit 108, is not having under the situation of standby power supply pressure solenoid valve 106 dead electricity; Hydraulic pipe line conducting this moment, the hydraulic pressure that stores in the accumulator 1024 can act on braking device 110 through hydraulic pipe line and carry out brake.Through the brake appts that the utility model provides, under the situation that pressure solenoid valve 106 and current supply circuit 108 break off, storage battery 112 still can continue pressure solenoid valve 106 continued powers.Thereby when guaranteeing electrical network under the strong wind situation (for example, current supply circuit) dead electricity, blade can autofeather, but the high speed shaft brake can not move, thereby make impeller keep free slowly rotation status, avoid the brute force of strong wind to impact.Through the utility model, can under making full use of the situation of existing resource, solve the problem that exists in the existing technology with lower cost.
As for example, preferably, the storage battery 112 in the utility model adopts the electric pressure identical with current supply circuit 108.For example, the storage battery that adopts direct current 24V is as storage battery, can be to pressure solenoid valve 106 continued powers 5～7 hours, thus time of abundance is provided for the maintenance of wind-powered electricity generation unit and row's barrier.Simultaneously; Preferably, through storage battery 112 is parallelly connected with current supply circuit 108 with the pressure solenoid valve 106 parallelly connected pressure solenoid valves 106 that make, thereby can charge through 108 pairs of storage batteries 112 of current supply circuit; Guarantee that storage battery effectively, has good operability and practicability constantly.
Fig. 3 is the another kind of blower fan brake appts illustrative embodiments block diagram according to the utility model.As shown in Figure 3; In the blower fan brake appts 300 that this mode of execution provides; Wherein hydraulic power 102, oil hydraulic pump 1022, accumulator 1024, pressure solenoid valve 106, current supply circuit 108, braking device 110 and storage battery 112 are identical with the corresponding intrument shown in Fig. 2, and the difference of two figure is that the blower fan brake appts shown in Fig. 3 also comprises relay 302.This relay 302 and links to each other through circuit with current supply circuit 108 on the circuit between storage battery 112 and the pressure solenoid valve 106, under the situation of current supply circuit 108 outages, and relay 302 conductings, storage battery 112 gives pressure solenoid valve 112 power supplies; Have at current supply circuit 108 under the situation of electricity, relay 302 breaks off, and is come to pressure solenoid valve 112 power supplies by current supply circuit 108.Come like this circuit between storage battery 112 and the pressure solenoid valve 106 is carried out ON/OFF control.
Be communicated with storage battery 112 and braking device 110 through relay 302 is set, be implemented in excision storage battery 112 under the wind-powered electricity generation unit main circuit power supply normal condition, only after major loop and electric network fault dead electricity, just drop into storage battery 112.And this relay 302 capable of using is as the o-volt protection loop of pressure solenoid valve control loop.After eliminating fault, can play reset response to blower fan system.In practical operation, can relay 302 be arranged on the bottom of the tower of wind-powered electricity generation unit, make things convenient for the staff to operate, improved the Security of operation.
Through the blower fan brake appts that Fig. 3 provides, can realize control, and device responds speed is fast to the brake of blower fan high speed shaft, reliability is high.In addition; Because when current supply circuit 108 proper functioning; Storage battery 112 is in off state with pressure solenoid valve 106, thereby can guarantee that the wind-powered electricity generation unit does not break down because of adding holding storage battery, and guarantees not influence when storage battery breaks down the normal operation of wind-powered electricity generation unit existing equipment.
The foregoing description is only in order to explanation the utility model, and those of ordinary skill in the art should be appreciated that and can make amendment, be out of shape the utility model or be equal to replacement, and do not break away from the spirit and the scope of the utility model.
Claims (5)
1. blower fan brake appts; This equipment comprises: hydraulic power, pressure solenoid valve, current supply circuit and braking device; Said hydraulic power links to each other through hydraulic pipe line with said braking device, in the said hydraulic pipe line of said pressure solenoid valve between said hydraulic power and said braking device, and by said current supply circuit power supply; It is characterized in that
Said equipment also comprises storage battery, and this storage battery is parallelly connected with said pressure solenoid valve.
2. equipment according to claim 1; It is characterized in that this equipment also comprises: relay, in the circuit of this relay between said storage battery and said pressure solenoid valve; And link to each other with said current supply circuit, be used for the said circuit of conducting under the situation of said current supply circuit dead electricity.
3. equipment according to claim 1 and 2 is characterized in that, said hydraulic power comprises: oil hydraulic pump and accumulator.
4. equipment according to claim 1 and 2 is characterized in that, said storage battery has identical electric pressure with said current supply circuit.
5. equipment according to claim 4 is characterized in that, said storage battery is the storage battery of direct current 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200595615U CN202417822U (en) | 2012-02-21 | 2012-02-21 | Fan braking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200595615U CN202417822U (en) | 2012-02-21 | 2012-02-21 | Fan braking equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417822U true CN202417822U (en) | 2012-09-05 |
Family
ID=46742593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200595615U Expired - Lifetime CN202417822U (en) | 2012-02-21 | 2012-02-21 | Fan braking equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417822U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759741A (en) * | 2015-04-20 | 2015-07-08 | 南通江中光电有限公司 | Automatic welding machine brake apparatus |
| CN104895741A (en) * | 2015-06-10 | 2015-09-09 | 国家电网公司 | Wind driven generator hybrid brake system and brake method |
-
2012
- 2012-02-21 CN CN2012200595615U patent/CN202417822U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759741A (en) * | 2015-04-20 | 2015-07-08 | 南通江中光电有限公司 | Automatic welding machine brake apparatus |
| CN104895741A (en) * | 2015-06-10 | 2015-09-09 | 国家电网公司 | Wind driven generator hybrid brake system and brake method |
| CN104895741B (en) * | 2015-06-10 | 2017-07-04 | 国家电网公司 | A kind of wind-driven generator composite braking system and braking method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |