CN2166268Y - Anti-corrosion axial flow fan blade - Google Patents
Anti-corrosion axial flow fan blade Download PDFInfo
- Publication number
- CN2166268Y CN2166268Y CN 93234047 CN93234047U CN2166268Y CN 2166268 Y CN2166268 Y CN 2166268Y CN 93234047 CN93234047 CN 93234047 CN 93234047 U CN93234047 U CN 93234047U CN 2166268 Y CN2166268 Y CN 2166268Y
- Authority
- CN
- China
- Prior art keywords
- blade
- flow fan
- axial flow
- fan blade
- aluminium flake
- 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
Abstract
The utility model relates to an anti-corrosion axial flow fan blade made of aluminium sheet and glass fiber reinforced plastic. The structure of the utility model is that a fan steel skeleton whose length is about 4 meters is coated with an aluminum sheet which is 1-3 mm in thickness, and the aluminum sheet is provided with glass fiber reinforced plastic made of 8 layers of cloth and 9 layers of resin. The axial flow fan blade of the utility model has stronger anti-corrosion capacity, the service life of the axial flow fan blade can be extended from original 3 years to about 6 years, and the running quality of a fan can be enhanced, namely, the balance of the blade is favorable without off tracking, the vibration is small, and the motor load and air volume air pressure are normal.
Description
The utility model belongs to wind-powered machine, further is the preservative treatment of axial flow fan in cooling tower blade.
Axial flow fan in cooling tower is widely used in chemical industry and power station, nearly all uses axial-flow blower cooling hot water especially in the nitrogen fertilizer production of chemical fertilizer factory, recycles then.Because the axial-flow blower bodily form is big, the length of a common single-blade reaches about 4 meters, and the water that is cooled off contains corrosive materials such as carbon dioxide oxynitrides again, work under bad environment, and damage easily is corroded.In the axial-flow fan blade design of current China, aspect anticorrosion, only on Material Selection, take in.Therefore, antiseptic effect is relatively poor, and the very fast damage of blade influences the blower fan running, further can influence the normal operation of whole production line.The make of China's blower fan is that the blade covering is installed outside the Steel Skeleton of blade, and the covering lining has two kinds of unlike materials, and a kind of is directly to cover with aluminum alloy in the outside of Steel Skeleton, and another kind is to do glass fibre reinforced plastics outside Steel Skeleton.Facts have proved that the aluminum alloy erosion resistance is poor, be easy to be corroded by chemical substance and damage; Though glass fibre reinforced plastics has improved antiseptic power to a certain extent, but owing to the material relation of glass fibre reinforced plastics itself is easy to breakage, so working life of above-mentioned two kinds of blades, 3-4 is generally only arranged, even and if during this period, because blade is worked in rugged environment, also can very fast local deformation, cause current load constantly to change, air quantity also changes, and has influenced the effect of cooling tower.
The utility model is at the shortcoming of above-mentioned two kinds of blades, propose a kind of novel blade of constructing, be characterized in above-mentioned two kinds of materials are used in combination, adopt common aluminium flake as covering, be installed on the Steel Skeleton to guarantee the stiffness of blade with rivet or screw, on aluminium flake, do glass fibre reinforced plastics then again.According to said method the blade of Zhi Zuoing can be brought up to more than 6 years its working life, has increased life time exponentially, has reduced cost, has reduced the harm that production line lost efficacy and stops production because of blower fan.
Details are as follows in conjunction with the accompanying drawings for the utility model, wherein:
Fig. 1 is the blade plane schematic representation;
Fig. 2 is the A-A section of blade.
Profile by the visible blade of Fig. 1 and Fig. 2 (1) is similar to the common electrical flabellum, but its size is much bigger, and common single leaf is long for about 4M, thus the structure of blade like aircraft wing or model aircraft wing, there is skeleton (2) inside, adds covering at skeleton.Blade structure of the present utility model such as following.At first make Steel Skeleton (2) (the oblique line part of Fig. 2) with steel, then aluminium flake (4), (thickness of aluminium flake is generally 1～3mm), with rivet (3) or be bolted on the skeleton (2), the layout of rivet or bolt gets final product (not shown) so that skeleton and aluminium flake closely strike up partnership.Remove dirt and rust staining on the aluminium flake then, brush rust preventive material after washing with the alcohol equal solvent again.After carrying out above-mentioned preparatory work, scraping putty on the aluminium flake, the material of putty can be that gesso and paint common in the painter's work is made, and also can modulate with quartz flour and epoxy resin.After parching, putty on aluminium flake, makes glass fibre reinforced plastics (5) with cloth and epoxy resin thereon again, in order to prevent the corrosion of chemical substance in the blade working environment (carbon dioxide, oxynitrides, chloride etc.), at least will be with 8 layers of cloth, 9 layers of epoxy resin or other available resinae material.After treating that glass fibre reinforced plastics is made, again processing is polished on the glass fibre reinforced plastics top layer, make it smooth clean and tidy, promptly can be made into anticorrosive blade described in the utility model.
The design's axial-flow fan blade antiseptic power significantly improves, and has not only prolonged service time, and when work blade balance good, sideslip not vibrates for a short time, motor load is normal, airflow pressure is normal.Therefore used after the design's the axial-flow fan blade, significantly reduced blower fan shutdown maintenance number of times, not only reduced direct maintenance expenses but also can also produce huge economic benefit owing to reducing shutdown times.
Claims (3)
1, a kind of anticorrosion axial-flow fan blade of being made by Steel Skeleton, aluminium flake and glass fibre reinforced plastics of aluminium flake covering steel, feature of the present utility model are gone up at the Steel Skeleton (2) of blade (1) and are coverd with aluminium flake (4) with rivet (3), go up at aluminium flake (4) and make glass fibre reinforced plastics (5).
2, by the anticorrosion machine blade of the described aluminium flake covering of claim 1 glass fibre reinforced plastics, the thickness that it is characterized by described aluminium flake is 1-3mm.
3,, it is characterized by described glass fibre reinforced plastics and make by 8 layers of cloth and 9 layers of epoxy resin by the anticorrosion machine blade of the described aluminium flake covering of claim 1 glass fibre reinforced plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234047 CN2166268Y (en) | 1993-05-29 | 1993-05-29 | Anti-corrosion axial flow fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234047 CN2166268Y (en) | 1993-05-29 | 1993-05-29 | Anti-corrosion axial flow fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2166268Y true CN2166268Y (en) | 1994-05-25 |
Family
ID=33809809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93234047 Expired - Fee Related CN2166268Y (en) | 1993-05-29 | 1993-05-29 | Anti-corrosion axial flow fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2166268Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235316A (en) * | 2010-04-21 | 2011-11-09 | 浙江恒通机械有限公司 | Wind motor blade and manufacturing method thereof |
| CN103640685A (en) * | 2013-12-29 | 2014-03-19 | 陈俞任 | Glass fiber reinforced plastic bulletproof stealth aircraft with aluminum net keel |
| CN103660315A (en) * | 2013-12-29 | 2014-03-26 | 陈俞任 | Steel mesh keel glass fiber reinforced plastic tank and armored vehicle |
| CN105464910A (en) * | 2015-12-16 | 2016-04-06 | 西北工业大学 | Wind turbine blade made from shape memory fiber hybrid composite material and manufacturing method of wind turbine blade |
-
1993
- 1993-05-29 CN CN 93234047 patent/CN2166268Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235316A (en) * | 2010-04-21 | 2011-11-09 | 浙江恒通机械有限公司 | Wind motor blade and manufacturing method thereof |
| CN103640685A (en) * | 2013-12-29 | 2014-03-19 | 陈俞任 | Glass fiber reinforced plastic bulletproof stealth aircraft with aluminum net keel |
| CN103660315A (en) * | 2013-12-29 | 2014-03-26 | 陈俞任 | Steel mesh keel glass fiber reinforced plastic tank and armored vehicle |
| CN105464910A (en) * | 2015-12-16 | 2016-04-06 | 西北工业大学 | Wind turbine blade made from shape memory fiber hybrid composite material and manufacturing method of wind turbine blade |
| CN105464910B (en) * | 2015-12-16 | 2018-04-03 | 西北工业大学 | Shape memory fiber hybrid composite blade of wind-driven generator and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |