CN203231065U - Lubricating oil replacing device for main gear box of wind generator set - Google Patents
Lubricating oil replacing device for main gear box of wind generator set Download PDFInfo
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- CN203231065U CN203231065U CN 201220717779 CN201220717779U CN203231065U CN 203231065 U CN203231065 U CN 203231065U CN 201220717779 CN201220717779 CN 201220717779 CN 201220717779 U CN201220717779 U CN 201220717779U CN 203231065 U CN203231065 U CN 203231065U
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- gear box
- lubricating oil
- oil
- pump
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Abstract
The utility model provides a lubricating oil replacing device for a main gear box of a wind generator set. The lubricating oil replacing device comprises a lubricating oil introducing pipeline, the main gear box connected to the wind generator set, a new lubricating oil storage device, a pump, and a lubricating oil leading-out pipeline. The pump, for transporting new lubricating oil to the main gear box, is arranged in the lubricating oil introducing pipeline. The lubricating oil leading-out pipeline is used for transporting used lubricating oil in the main gear box to a used lubricating oil storage device, one end of the lubricating oil leading-out pipeline is connected to the main gear box, and the other end is connected to the used lubricating oil storage device. According to the technical solution of the lubricating oil replacing device for the main gear box of the wind generator set, a hydraulic pump is employed to pump the lubricating oil to a gear box of the wind generator set; compared with the prior conventional manual lubricating oil replacing solution of the gear box, the lubricating oil replacing device for the main gear box of the wind generator set is advantageous in that the work efficiency is significantly improved and the power loss is reduced under the premise of low cost input.
Description
Technical field
The utility model relates to wind power generating set service equipment field, in particular to a kind of wind power generating set main-gear box oil change device.
Background technique
Entered the developing period of " blowout formula " from China's wind-power electricity generation in 2007, the large-scale wind power project starts successively, about 1,055 ten thousand kilowatts of China's annual mean electric motor power in 2007 to 2010, and electric motor power in 2010 reaches 1892.8 ten thousand kilowatts.And wherein the wind-powered electricity generation unit more than 70% adopts MW class non-direct drive dual-feed asynchronous wind power generator group, and its main-gear box operation needs the lubricant oil of usefulness between 500 to 700 liters.
Along with the operation of unit, the every physical and chemical index of gear box lubricating oil all descends successively, and lubricant oil can fade.When early stage wind power generating set is safeguarded, generally namely gear lubricant is once changed after 2 to 3 years in operation as usual.Abundant along with the lifting of oil property and monitoring means, lubricant oil no longer are confined to an experience time limit service time, but after reaching certain operation time limit, the every physical and chemical index of lubricant oil still can descend fast, and this is undisputable fact.Therefore, the debugging of concentrating puts into operation, and in the close inefficacy time limit, must cause a large amount of wind-powered electricity generation units to face and need carry out large-area oil change work.
Traditional gear box lubricating oil replacing scheme is at present, by the engine room inside crane new oil product is promoted to the cabin by bucket (a barrel is about 25 to 30 liters), manually annotates then.In the on-the-spot practical operation, the lubricant oil (about 600 liters) of finishing a 1.5MW unit is more exchanged treaties and is needed 5 personnel's operations 13 hours, causes unit outage about 25 hours.This replacing method working efficiency is extremely low.If the wind-powered electricity generation unit can not resume operation the same day, certainly will cause the unit outage at night, invisible has increased the generated energy loss.Particularly batch type is changed, and for example the electric motor power of the most of wind power plant of China is all more than 33, when the wind-powered electricity generation unit carries out the gear box lubricating oil replacing, the duration that reaches the several months, will produce high human input, cross over strong wind season simultaneously, further strengthen the generated energy loss.In addition, gear box lubricating oil needs to change bucket in artificial filling process has bad luck, and the turbidity test of lubricant oil also are difficult to guarantee.
The model utility content
The utility model aims to provide a kind of wind power generating set main-gear box oil change device, to solve the artificial more scheme inefficiency of oil change in the prior art, the problem that the generated energy loss is big.
To achieve these goals, the utility model provides a kind of wind power generating set main-gear box oil change device, comprising: lubricant oil is introduced pipeline, connects main-gear box and the new oil storage device of wind power generating set; Pump is arranged on lubricant oil and introduces in the pipeline, is used for new lubricant oil is delivered to main-gear box; The lubricant oil introduction pipe is used for the old lubricant oil of main-gear box is delivered to old lubrication oil storage, and an end of lubricant oil introduction pipe is connected with main-gear box, and the other end connects old lubrication oil storage.
Further, comprise also that one-way valve is linked into lubricant oil and introduces between pipeline and the new oil storage device.
Further, one-way valve and pump are in parallel.
Further, pump is by motor driving.
Further, pump is that delivery pressure is greater than the pump of 13.25bar.
Further, pump is that delivery pressure is the pump of 22.52bar.
Further, motor is that power is the motor of 1.85KW.
Further, comprise also that filter plant is introduced pipeline with lubricant oil and is connected, filtering lubricant oil is introduced ducted lubricant oil.
Further,, comprise also that for the off-line filtration system that realizes the end-filtration of lubricant oil in the gear-box described off-line filtration system is arranged on described gear-box outside and is connected with described gear-box.
Use the technical solution of the utility model, adopt oil hydraulic pump lubricating pump to be delivered in the gear-box of wind-powered electricity generation unit, the conventional relatively at present artificial gear box lubricating oil of employing is changed scheme, under the prerequisite that low cost drops into, greatly improve working efficiency, reduced the generated energy loss.
Description of drawings
The Figure of description that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the allocation plan of wind power generating set main-gear box oil change device of the present utility model;
The density that Fig. 2 shows wind power generating set main-gear box oil change device of the present utility model varies with temperature plotted curve;
Fig. 3 shows the pressure following temperature change curve of wind power generating set main-gear box oil change device of the present utility model;
Fig. 4 shows the viscosity with temperature change curve of wind power generating set main-gear box oil change device of the present utility model;
The pressure reduction that Fig. 5 shows wind power generating set main-gear box oil change device of the present utility model varies with temperature plotted curve; And
Outlet pressure and power of motor that Fig. 6 shows wind power generating set main-gear box oil change device of the present utility model vary with temperature plotted curve.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In the practical operation, manually change at the scene in the operating process of gear box lubricating oil, the link of elapsed time maximum is the lifting of new and old lubricant oil, hang and annotate, and takies approximately and changes 80% of cumulative time.
At this situation, the utility model has designed the auxiliary scheme of changing oil of hydraulic equipment that adopts: the purport of this scheme is to adopt hydraulic equipment gear box lubricating oil to be pumped directly in the gear-box of cabin on ground, promote and hang the time of gear box lubricating oil when manually changing oil to reduce, improve the efficient of changing oil greatly.
Referring to shown in Figure 1, wind power generating set main-gear box oil change device of the present utility model comprises, the lubricant oil introduction pipe of drawing in the gear-box 1 from the wind-powered electricity generation set engine room leads to old lubrication oil storage 3, old lubricant oil can be drawn gear-box.Also have the lubricant oil introducing pipeline that leads to the lubricating oil pipeline of wind-powered electricity generation unit from new oil case 2, introduce in the pipeline that at lubricant oil oil pump 5 being set, oil pump 5 is driven by motor 4, and the lubricating pump in the new oil case 2 is delivered in the gear-box 1.Lubricant oil is introduced in the pipeline and is also connected one-way valve 6, is used for preventing that pipeline pressure is excessive.
In addition, deliver in the process of gear-box at lubricating pump, the filtration system that is equipped with by gear-box self or the off-line filtration system beyond the gear-box are filtered lubricant oil in the gear housing, and index such as cleanliness of lubricating oil meets technical requirements in terminal is guaranteed gear housing.
Be the computational methods of the concrete dimensional parameters of the utility model below, the numerical value that draws is preferred value of the present utility model.
1, outlet pressure calculates
For guaranteeing that gear box lubricating oil can be pumped into the cabin smoothly, at first need to determine the incoming pressure of whole system.When determining incoming pressure, mainly consider two aspect factors: lose along stroke pressure when the pressure that oil column produces in the pipeline and pump oil.
1) fluid column produces static pressure calculating
The calculation of pressure formula that liquid produces the oil pump outlet port in from the cabin to the column foot oil pipe can be referring to formula (1-1):
p＝ρ·g·h （1-1）
In the formula, ρ is fluid density, and the gear box lubricating oil density of Ji Suaning and the relation curve of temperature are seen Fig. 2 herein: density varies with temperature shown in the plotted curve; G is gravity accleration; H is the gear box lubricating oil lifting height.
Consider present mainstream model wheel hub center height generally between 65-70 rice, the pumping of herein choosing highly is 75 meters, is Fig. 3 by calculating the pressure following temperature change curve that oil column produces at the pump discharge place: shown in the pressure following temperature change curve.
Can get pressure that 75 meters fluid columns produce at the oil pump outlet end between 0.66-0.60Mpa by Fig. 3 curve, and consider the real work situation, general oil change temperature can not be lower than 15 ℃, and it is corresponding, and to produce pressure be 0.649Mpa.
2) calculate along the stroke pressure loss
In the oil pumping process, losing along stroke pressure of generation calculated according to formula (1-2) with (1-3).
In the formula, R
eBe the Reynolds coefficient; υ is flow rate of liquid; γ is liquid kinematical viscosity, and the tooth oil viscosity of herein choosing and temperature curve are referring to Fig. 4: the viscosity with temperature change curve; D is the pipeline internal diameter.
In the formula, Δ p
lFor losing along stroke pressure; λ is along the stroke pressure loss coefficient, and different fluidised forms has different λ values; L is pipeline length; D is the pipeline internal diameter; ρ is fluid density; υ is flow rate of liquid;
Practical experience show in the rubber hose when oil keeps laminar motion along stroke pressure pressure loss coefficient λ only with reynolds' number R
eRelevant, irrelevant with the surface roughness of inner-walls of duct, its formula is:
Formula 1-4 and formula 1-2 substitution formula 1-3 are got:
It is as follows to choose parameter according to actual conditions:
Liquid kinematical viscosity γ: the selection environment temperature is 15 degree, and by Fig. 4: it is 1325cSt that the viscosity with temperature change curve gets viscosity number;
Inner diameter: choose the pvc pipe that internal diameter is 50mm;
Hose length: choosing length according to hub height is 85 meters;
Oil density: the selection environment temperature is 15 degree, and getting density value by Fig. 1 is 8.83 * 10-4g/mm
3
Flow velocity: the proposal plan flow is 50L/min, and its flow velocity is drawn by following formula:
Each value substitution formula 1-5 is got:
Can calculate simultaneously temperature-along journey pressure reduction relation curve, vary with temperature shown in the plotted curve as Fig. 5 pressure reduction by formula 1-5.
3) incoming pressure
When can proper ambient temperature being 15 ℃ by previous calculations, the flow velocity of pump is 50L/min, and to choose pipeline road be G2 〞 caliber, and the required incoming pressure of system is:
p
Input=p
Quiet+ Δ p
l=0.649+0.676=1.325Mpa=13.25bar
This incoming pressure is for reaching theoretical calculating pressure of 75 meters whens height, in order to guarantee the whole system reliable operation, reach purpose of design, should multiply by a safety coefficient on the basis that theory is calculated, selecting safety coefficient herein is 1.7, and getting system's incoming pressure as calculated is 22.52bar.
2, selection of Motor
By top calculating, and consult relevant handbook, can select gear pump as the power unit of this hydraulic system herein, choose drive motor according to design discharge now, referring to formula 1-6:
P
Motor=(p
OutletQ)/η
Pumpη
Motor(1-6)
In the formula, P is the motor output power; p
OutletBe delivery side of pump pressure; Q is fluid flow; η
PumpBe the mechanical efficiency of pump, get 0.95 herein; η
MotorBe the motor power (output) factor, get 0.64 herein; 1-6 gets with front design load substitution formula:
P
Motor=(2.252 * 10
6N/m
20.5 * 10
-3m
3/ s)/(0.95 * 0.64)=1.85KW
In addition, because the oil temperature is for Plant model selection and real work effectiveness affects maximum, and on-the-spot and operating temperature can not guarantee under certain is certain, and now calculate curve that the delivery side of pump pressure following temperature changes and power of motor and vary with temperature curve and see Fig. 6: outlet pressure and power of motor vary with temperature plotted curve.
And, the gear box lubricating oil turbidity test are one of indexs of oil product most critical, also be the project that pays particular attention in the more late process of lubricant oil, the relative traditional scheme of this programme has avoided the secondary of lubricant oil to have bad luck, pollute, so the relative traditional approach of turbidity test ensures more effective.
If conditions permit, can with the simultaneously operating of fresh oil filling process, thereby guarantee the inner oil product turbidity test of gear-box at least significant end at the outside off-line filter plant that increases at lubricant oil of gear-box, guarantee that turbidity test are up to standard, and it is consuming time can not influence the gear box lubricating oil replacing.
Key of the present utility model is to increase hydraulic power unit by ground, is pumped under the prerequisite that provides the pressure that satisfies calculation requirement lubricant oil to be guaranteed turbidity test in the gear-box apart from 70 meters on ground, increases economic efficiency.
Calculating in the present embodiment is based on 70 meters wheel hub center heights of 1.5MW unit, and this programme equally also is applicable to other wheel hub center height unit gear box lubricating oils replacings.
Combine with gear box lubricating oil replacing system by the off-line filtration system, can finish the degree of depth guarantee of turbidity test in gear box lubricating oil replacing process.
As can be seen from the above description, the utility model has been realized following technique effect:
Conventional relatively at present gear box lubricating oil is changed scheme under the prerequisite that very low cost drops into, and has greatly improved working efficiency, reduces the generated energy loss.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. a wind power generating set main-gear box oil change device is characterized in that, comprising:
Lubricant oil is introduced pipeline, connects main-gear box (1) and the new oil storage device (2) of wind power generating set;
Pump (5) is arranged on described lubricant oil and introduces in the pipeline, is used for new lubricant oil is delivered to described main-gear box;
The lubricant oil introduction pipe is used for the old lubricant oil of described main-gear box is delivered to old lubrication oil storage (3), and an end of described lubricant oil introduction pipe is connected with described main-gear box, and the other end connects described old lubrication oil storage (3).
2. wind power generating set main-gear box oil change device according to claim 1 is characterized in that, comprises that also one-way valve (6) is linked into described lubricant oil and introduces between pipeline and the described new oil storage device (2).
3. wind power generating set main-gear box oil change device according to claim 2 is characterized in that, described one-way valve (6) is in parallel with described pump (5).
4. wind power generating set main-gear box oil change device according to claim 1 is characterized in that, described pump (5) is driven by motor (4).
5. wind power generating set main-gear box oil change device according to claim 1 is characterized in that, described pump (5) is that delivery pressure is greater than the pump of 13.25bar.
6. wind power generating set main-gear box oil change device according to claim 5 is characterized in that, described pump (5) is the pump of 22.52bar for delivery pressure.
7. wind power generating set main-gear box oil change device according to claim 1 is characterized in that, described motor is that power is the motor of 1.85KW.
8. wind power generating set main-gear box oil change device according to claim 1 is characterized in that, also comprises, filter plant is introduced pipeline with described lubricant oil and is connected, and filters described lubricant oil and introduces ducted lubricant oil.
9. wind power generating set main-gear box oil change device according to claim 1, it is characterized in that, comprise also that for the off-line filtration system that realizes the end-filtration of lubricant oil in the gear-box described off-line filtration system is arranged on described gear-box outside and is connected with described gear-box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717779 CN203231065U (en) | 2012-12-21 | 2012-12-21 | Lubricating oil replacing device for main gear box of wind generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717779 CN203231065U (en) | 2012-12-21 | 2012-12-21 | Lubricating oil replacing device for main gear box of wind generator set |
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| Publication Number | Publication Date |
|---|---|
| CN203231065U true CN203231065U (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717779 Expired - Lifetime CN203231065U (en) | 2012-12-21 | 2012-12-21 | Lubricating oil replacing device for main gear box of wind generator set |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864080A (en) * | 2015-04-01 | 2015-08-26 | 上海汇益控制系统股份有限公司 | Megawatt-level fan transmission lubricating system |
| CN108999957A (en) * | 2018-08-06 | 2018-12-14 | 深圳鑫安满金融服务有限公司 | Intelligent oil of supervising and control gear-box |
| CN110573730A (en) * | 2017-04-27 | 2019-12-13 | 霍弗股份有限公司 | Central lubrication station |
| CN113048011A (en) * | 2019-12-27 | 2021-06-29 | 国家电投集团科学技术研究院有限公司 | Wind power generator |
-
2012
- 2012-12-21 CN CN 201220717779 patent/CN203231065U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864080A (en) * | 2015-04-01 | 2015-08-26 | 上海汇益控制系统股份有限公司 | Megawatt-level fan transmission lubricating system |
| CN104864080B (en) * | 2015-04-01 | 2018-01-19 | 上海汇益控制系统股份有限公司 | Megawatt fan transmission lubrication system |
| CN110573730A (en) * | 2017-04-27 | 2019-12-13 | 霍弗股份有限公司 | Central lubrication station |
| CN110573730B (en) * | 2017-04-27 | 2021-06-25 | 霍弗股份有限公司 | Central lubrication station |
| US11940094B2 (en) | 2017-04-27 | 2024-03-26 | Hove A/S | Central lubricating station |
| CN108999957A (en) * | 2018-08-06 | 2018-12-14 | 深圳鑫安满金融服务有限公司 | Intelligent oil of supervising and control gear-box |
| CN113048011A (en) * | 2019-12-27 | 2021-06-29 | 国家电投集团科学技术研究院有限公司 | Wind power generator |
| CN113048011B (en) * | 2019-12-27 | 2024-02-06 | 国家电投集团科学技术研究院有限公司 | Wind power generator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |