CN204389366U - A kind of test unit of fan blade coating icing adhesion test - Google Patents
A kind of test unit of fan blade coating icing adhesion test Download PDFInfo
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- CN204389366U CN204389366U CN201420804067.6U CN201420804067U CN204389366U CN 204389366 U CN204389366 U CN 204389366U CN 201420804067 U CN201420804067 U CN 201420804067U CN 204389366 U CN204389366 U CN 204389366U
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- cylindrical drum
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- fan blade
- icing
- top board
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Abstract
The test unit that the utility model provides a kind of fan blade coating icing adhesion to test, comprise stationary installation and proving installation, stationary installation comprises base plate, top board, four screw rods, four nuts, and proving installation comprises cylindrical drum, cylinder cover, steel wire tow line; Cylindrical drum is placed on base plate, cylinder cover is threaded connection cylindrical drum, top board is placed in cylindrical drum, and being connected with top board by base plate by screw rod and nut and fixing, steel wire tow line is connected with cylindrical drum by annular groove or is connected with cylinder cover by hooking hole.The utility model structure is simple, be convenient for carrying, can under simulation test actual environment different-thickness ice cover under coating model icing adhesion, test the icing adhesion of vertical direction, the icing adhesion of horizontal direction, wind energy turbine set can be placed into, the icing situation of blower fan blade coatings under effective simulation actual environment.
Description
Technical field
The utility model relates to the test unit of a kind of fan blade coating icing adhesion test.
Background technology
In recent years, the ratio of wind-power electricity generation shared by the energy total amount in the world improves gradually, and wind-powered electricity generation has become energy development mode with fastest developing speed, most with prospects in the world.Wind energy is a kind of regenerative resource, there is not the problem of environmental pollution that conventional energy resources brings, by countries in the world common concern with first develop.China has wide grassland and very long shore line, and wind energy resources deposit is very abundant.But abundant wind-resources major part is distributed in the north, the world of ice and snow, environment is extremely severe.When wind power generation blower fan runs under zero centigrade and subzero cryogenic conditions, if run into humid air, rainwater, salt fog, ice and snow, when particularly running into supercooling water droplet, phenomenon will be frozen.The regional fan blade ice formation issues such as China northern Shensi and Yunnan-Guizhou are very serious.After fan blade icing, very large harm can be produced.The principle of work of fan blade is mechanical energy by the kinetic energy of wind.Fan blade is made up of the impeller of two or many propeller shapes.There is wind out-of-date, blade produces aerodynamic force and drive wind wheel to rotate.Due to the important composition parts that fan blade is blower fan, the aeroperformance of fan blade directly has influence on the efficiency of blower fan converting wind energy.After fan blade icing, very large harm can be produced.Not only make the original aerofoil profile of fan blade change, greatly affect the load of Wind turbines and exert oneself, very large harm being produced to unit, the generating efficiency of blower fan is had a greatly reduced quality, according to statistics, year power generation loss reach 1% ~ 10%, serious area is up to 20% ~ 30%.Blade freezes also may cause Types of Abnormal Vibration Appearances, thus affects blade service life and unit normal power generation.Get rid of ice time serious, even leaf destruction, threaten wind energy turbine set area personal security.Therefore the ice-covering-proof technical research of fan blade has important practical significance.
Ice-covering-proof is a global problem, and the multiple country of ice damage such as Canada, the U.S. have set up particular study mechanism already, carries out large quantity research to solution icing problem.Usually adopt at present both at home and abroad mechanical deicing, be coated with and spread ice-covering-proof dose, heating deicing and the anti-icing 4 kinds of de-icing methods of coating, but through Integrated comparative, think that adopting this coating of anti-icing paint anti-icing is a kind of effective method.But detect about the correlated performance of anti-icing paint the method that set of system is imperfect at present, common method has the method for testing of icing adhesion, the method for testing of coating contact angle, the method for testing of coating surface tension and wind freezing test etc.Wherein fan blade coating icing adhesion effectively can reflect that blade freezes the adhesion situation of rear surface icing and coating model, and when can simulate fan blade real-world operation to a certain extent, icing throws away situation.
The external ice-covering-proof ability of two kinds of proving installations to material that adopt carries out quantitative test at present, and a kind of is that rotatable cylinder is placed in the container filling water, then carries out freezing.After water freezing, start rotating cylindrical, and measure the peak torque that cylinder starts to rotate needs, and with the icing shearing force on this Calculating material surface.There are following two shortcomings in this device, one is that the icing process of water in gap and actual conditions exist difference (in reality, ice builds up at coating surface), two is that repeatedly test result repeatability is not bery desirable, even sometimes reaches the error of 300%.Another kind adopts rotatable disk, first allows disc surfaces icing, then start rotary disk, and rotating speed when measuring disc surfaces coating ice falling, the adhesion of icing is finally calculated with this.This mainly reflects the icing adhesion of ice in coating model horizontal direction, and the icing adhesion of ice in coating model vertical direction can not be reflected, this device not only needs to possess the adjustable High Rotation Speed function of speed in addition, also need to possess low temperature functional, thus the icing of warranty test specimen surface is not melted simultaneously.Generally speaking this device structure is complicated, and cost is relatively high.
The domestic proving installation having a kind of micro-processor controlled material surface icing adhesion at present, this device can the shearing force on test material surface, stretching resistance and the coupling power between shearing force and stretching resistance.But during for testing fan blade coating icing adhesion, not only need that Fan blade material is processed into cylinder body rod, top is right cylinder and below is the specific shape of bar that conical rod is combined up and down, also need at specimen surface application anti-icing coating.So not only bother, and due to blower fan leaf be sheet, so test condition and actual conditions exist certain difference, do not reach the object of simulation test.
Utility model content
Technical problem to be solved in the utility model, is just to provide the test unit that a kind of fan blade coating icing adhesion simple to operate, that can simulate fan blade actual conditions is tested.
Solve the problems of the technologies described above, the utility model takes following technical scheme:
A test unit for fan blade coating icing adhesion test, comprise stationary installation and proving installation, wherein stationary installation comprises base plate, top board, four screw rods, four nuts, and proving installation comprises cylindrical drum, cylinder cover, steel wire tow line; Base plate four angles have a through hole, and top board center has a circular open, and four angles have a through hole simultaneously; Be provided with one in the middle part of cylindrical drum stack shell for placing the annular groove of steel wire tow line, tube port position is provided with internal thread; Cylindrical drum lid tube port position is provided with external thread, stretches out a hook hole outside in the middle part of caping; Cylindrical drum is placed on base plate, cylinder cover is threaded connection cylindrical drum, top board is placed in cylindrical drum, and being connected with top board by base plate by through hole by screw rod and nut and fixing, steel wire tow line is connected with cylindrical drum by annular groove or is connected with cylinder cover by hooking hole.
In order to ensure the quality of testing, cylindrical drum and cylinder cover all adopt hydrophilic material.
In order to reduce gap between cylindrical drum and the model of band coating, bottom cylindrical drum, being provided with annular groove, in annular groove, placing rubber washer.
The circular open diameter of top board, between cylindrical drum internal diameter and external diameter, can ensure that top board can cover cylindrical drum when the circular hole axis coinciding of cylindrical drum axle center and top board like this.
Compared with prior art, the utility model has following beneficial effect:
The utility model structure is simple, be convenient for carrying, can by select the cylindrical drum of differing heights come different-thickness ice under simulation test actual environment cover under coating model icing adhesion.Both can the icing adhesion of model vertical direction of calibration tape coating, also can the icing adhesion of model horizontal direction of calibration tape coating.Meanwhile, the wind energy turbine set that blade easily freezes can be placed into, thus the icing situation of blower fan blade coatings under effective simulation actual environment.
Accompanying drawing explanation
Fig. 1 is the front elevation of the utility model embodiment;
Fig. 2 is the vertical view of the utility model embodiment;
Front elevation when Fig. 3 is the icing adhesion of the utility model embodiment test fan blade coating vertical direction;
Vertical view when Fig. 4 is the icing adhesion of the utility model embodiment test fan blade coating vertical direction;
Front elevation when Fig. 5 is the icing adhesion in the utility model embodiment test fan blade coating level direction;
Vertical view when Fig. 6 is the icing adhesion in the utility model embodiment test fan blade coating level direction.
In figure: steel wire tow line 1, cylinder cover 2, top board 3, nut 4, screw rod 5, cylindrical drum 6, the model 7 of band coating, base plate 8, dynamometer 9.
Embodiment
In order to understand the utility model better, be described further below in conjunction with the technical scheme of accompanying drawing to utility model.
See Fig. 1, Fig. 2, a kind of test unit of fan blade coating icing adhesion test, comprise stationary installation and proving installation, wherein stationary installation comprises base plate 8, top board 3, four screw rod 5, four nut 4, and proving installation comprises cylindrical drum 6, cylinder cover 2, steel wire tow line 1; Base plate 8 four angles have a through hole, and top board 3 center has a circular open, and four angles have a through hole simultaneously; Be provided with one in the middle part of cylindrical drum 6 stack shell for placing the annular groove of steel wire tow line, tube port position is provided with internal thread; Cylinder cover 2 tube port position is provided with external thread, stretches out a hook hole outside in the middle part of caping.Cylindrical drum 6 is placed on base plate, cylinder cover 2 is threaded connection cylindrical drum 6, top board 3 is placed in cylindrical drum 6, the circular hole circular open diameter of top board 3, between cylindrical drum 6 internal diameter and external diameter, can ensure that top board 3 can cover cylindrical drum when the circular hole axis coinciding of cylindrical drum axle center and top board 3 like this.By screw rod 5 and nut 4 through hole by base plate and top board corner, be connected with top board by base plate and fix, steel wire tow line 1 is connected with cylindrical drum 6 by annular groove or is connected with cylinder cover 2 by hooking hole.Above-mentioned cylindrical drum and cylinder cover all adopt hydrophilic material.
In order to reduce gap between cylindrical drum 6 and the model of band coating, bottom cylindrical drum, being provided with annular groove, in annular groove, placing rubber washer.
This device specific works process: cylindrical drum 6 is positioned on the model 7 of band coating, dynamometer 9 is adopted to be connected with the steel wire tow line 1 that cylindrical drum covers, and it is applied to the vertical direction pulling force of evenly increase, until cylindrical drum 6 is pulled the position left cylindrical drum 6 completely and place, write down the reading of dynamometer, repeated test 6 times, gets its arithmetic mean and is designated as F1
0.
Cylindrical drum 6 is positioned on the test piece 7 of band coating, dynamometer 9 is adopted to be connected with cylindrical drum steel wire tow line 1 with it, and it is applied to the horizontal direction pulling force of evenly increase, until cylindrical drum 6 is pulled the position left cylindrical drum 6 completely and place, write down the reading of dynamometer, repeated test 6 times, gets its arithmetic mean and is designated as F2
0.
Cylindrical drum 6 fixed by nut 4, screw rod 5, top board 3 and base plate 8, be placed between base plate 8 and cylindrical drum 6 by the model 7 of band coating, cylindrical drum 6 is positioned at the center of the model 7 of band coating, and wherein the model 7 of band coating is cated faces up.Fill chilled water in cylindrical drum 6 after, by the mode of internal thread, cylindrical drum upper cover 2 is screwed in cylindrical drum 6 again, after tightening, whole device is placed in the low-temperature test chamber of-20 DEG C, until freezing in cylindrical drum completely, nut 4, screw rod 5, top board 3 and base plate 8 are dismantled.And adopt setting tool to be fixed by the model 8 of band coating.
See Fig. 3, Fig. 4, when testing the icing adhesion of fan blade coating vertical direction: adopt dynamometer 9 to be connected with the steel wire tow line on cylinder cover 2, and it is applied to the pulling force of evenly increase, until cylindrical drum is pulled in company with ice in cylindrical drum the position left cylindrical drum and originally placed together, write down the numerical value of dynamometer display, repeated test 6 times, its arithmetic mean F1 and F1
0difference be the icing adhesion of fan blade coating vertical direction.
See Fig. 5, Fig. 6, when testing the icing adhesion in fan blade coating level direction: adopt dynamometer 9 to be connected with cylindrical drum steel wire tow line 1 with it, and it is applied to the pulling force of evenly increase, until cylindrical drum is moved to together in company with ice in cylindrical drum leave original position, write down the numerical value of dynamometer display, repeated test 6 times, its arithmetic mean F2 and F2
0difference be the icing adhesion in fan blade coating level direction.
The above embodiment only have expressed Some Species embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.Without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. the test unit of a fan blade coating icing adhesion test, comprise stationary installation and proving installation, it is characterized in that: described stationary installation comprises base plate (8), top board (3), four screw rods (5), four nuts (4), described proving installation comprises cylindrical drum (6), cylinder cover (2), steel wire tow line (1); Described base plate (8) four angles have a through hole; Described top board (3) center has a circular open, and four angles have a through hole simultaneously; Be provided with one in the middle part of described cylindrical drum (6) stack shell for placing the annular groove of steel wire tow line, tube port position is provided with internal thread; Described cylinder cover (2) tube port position is provided with external thread, stretches out a hook hole outside in the middle part of caping;
Described cylindrical drum (6) is placed on base plate, cylinder cover (2) is threaded connection cylindrical drum (6), top board (3) is placed in cylindrical drum (6), base plate (8) is connected with top board (3) and is fixed with nut (4) through through hole by screw rod (5), steel wire tow line (1) is connected with cylindrical drum (6) by annular groove or is connected with cylinder cover (2) by hooking hole.
2. the test unit of fan blade coating icing adhesion test according to claim 1, is characterized in that: described cylindrical drum (6) and cylinder cover (2) all adopt hydrophilic material.
3. the test unit of fan blade coating icing adhesion test according to claim 2, is characterized in that: cylindrical drum (6) bottom is provided with annular groove, places rubber washer in annular groove.
4. the test unit of fan blade coating icing adhesion according to claim 3 test, is characterized in that: the circular open diameter of described top board (3) is between cylindrical drum (6) between internal diameter and external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804067.6U CN204389366U (en) | 2014-12-18 | 2014-12-18 | A kind of test unit of fan blade coating icing adhesion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804067.6U CN204389366U (en) | 2014-12-18 | 2014-12-18 | A kind of test unit of fan blade coating icing adhesion test |
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| Publication Number | Publication Date |
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| CN204389366U true CN204389366U (en) | 2015-06-10 |
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| CN201420804067.6U Expired - Fee Related CN204389366U (en) | 2014-12-18 | 2014-12-18 | A kind of test unit of fan blade coating icing adhesion test |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044290A (en) * | 2015-07-30 | 2015-11-11 | 中国电器科学研究院有限公司 | Device for anti-freezing performance testing of anti-freezing coating of wind generating set blade |
| CN105403588A (en) * | 2015-12-28 | 2016-03-16 | 国电联合动力技术有限公司 | Test system for assessing freeze resistance of wind turbine blade coating, and method thereof |
| CN106950176A (en) * | 2017-04-27 | 2017-07-14 | 国网山西省电力公司经济技术研究院 | It is a kind of to test coated by ice of overhead power transmission line and the apparatus and method of wire interface normal direction bond strength |
| CN109883948A (en) * | 2019-03-12 | 2019-06-14 | 东北农业大学 | Material surface and sleet layer adhesion strength torsional shear force measuring device |
| CN110044816A (en) * | 2019-04-30 | 2019-07-23 | 东北农业大学 | Blade of wind-driven generator icing cohesive force simulated testing system and analog detection method |
| CN110726666A (en) * | 2019-10-23 | 2020-01-24 | 成都飞机工业（集团）有限责任公司 | Quantitative test method for adhesion of skin coating of aircraft |
| CN112014234A (en) * | 2020-08-26 | 2020-12-01 | 西南科技大学 | Device for measuring normal and tangential ice adhesion strength of material surface |
| CN112924303A (en) * | 2021-05-11 | 2021-06-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Device and method for measuring tangential shear adhesion strength of ice layer and substrate surface |
| CN114112900A (en) * | 2021-11-19 | 2022-03-01 | 湖北理工学院 | Icing force test system for anti-icing material |
-
2014
- 2014-12-18 CN CN201420804067.6U patent/CN204389366U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044290A (en) * | 2015-07-30 | 2015-11-11 | 中国电器科学研究院有限公司 | Device for anti-freezing performance testing of anti-freezing coating of wind generating set blade |
| CN105403588A (en) * | 2015-12-28 | 2016-03-16 | 国电联合动力技术有限公司 | Test system for assessing freeze resistance of wind turbine blade coating, and method thereof |
| CN106950176A (en) * | 2017-04-27 | 2017-07-14 | 国网山西省电力公司经济技术研究院 | It is a kind of to test coated by ice of overhead power transmission line and the apparatus and method of wire interface normal direction bond strength |
| CN106950176B (en) * | 2017-04-27 | 2023-04-28 | 国网山西省电力公司经济技术研究院 | Device and method for testing normal bonding strength of icing and wire interface of overhead transmission line |
| CN109883948A (en) * | 2019-03-12 | 2019-06-14 | 东北农业大学 | Material surface and sleet layer adhesion strength torsional shear force measuring device |
| CN110044816A (en) * | 2019-04-30 | 2019-07-23 | 东北农业大学 | Blade of wind-driven generator icing cohesive force simulated testing system and analog detection method |
| CN110726666A (en) * | 2019-10-23 | 2020-01-24 | 成都飞机工业（集团）有限责任公司 | Quantitative test method for adhesion of skin coating of aircraft |
| CN110726666B (en) * | 2019-10-23 | 2022-07-15 | 成都飞机工业（集团）有限责任公司 | Quantitative test method for adhesion of skin coating of aircraft |
| CN112014234A (en) * | 2020-08-26 | 2020-12-01 | 西南科技大学 | Device for measuring normal and tangential ice adhesion strength of material surface |
| CN112924303A (en) * | 2021-05-11 | 2021-06-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Device and method for measuring tangential shear adhesion strength of ice layer and substrate surface |
| CN114112900A (en) * | 2021-11-19 | 2022-03-01 | 湖北理工学院 | Icing force test system for anti-icing material |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510302 No. 204 Xingang West Road, Haizhu District, Guangzhou City, Guangdong Province Patentee after: China Electrical Appliance Research Institute Co.,Ltd. Address before: 510302 No. 204 West Xingang Road, Guangdong, Guangzhou Patentee before: CHINA NATIONAL ELECTRIC APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20211218 |