CN101140000A - Large-sized wind cooling low noise fiberglass blower fan - Google Patents
Large-sized wind cooling low noise fiberglass blower fan Download PDFInfo
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- CN101140000A CN101140000A CNA2006100414905A CN200610041490A CN101140000A CN 101140000 A CN101140000 A CN 101140000A CN A2006100414905 A CNA2006100414905 A CN A2006100414905A CN 200610041490 A CN200610041490 A CN 200610041490A CN 101140000 A CN101140000 A CN 101140000A
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Abstract
The invention relates to a large air-cooled low-noise FRP fan arranged on a fan bridge, which comprises a blade, a wheel hub, a speed reducer and a motor orderly connected together; wherein the fan blade takes a shape of a wide FRP wing blade and is formed by the die pressing, the surface layer of the fan blade is a composite adhesive layer formed by glass fiber cloth and resin, the inner core of the composite adhesive layer is filled with the polyurethane foam of small density and light weight, the surface layer of the composite adhesive layer is the smooth and wearable resin layer of small wind resistance, the fan blade root is connected with the wheel hub through a U-shaped anchor ear, the operating angle of the fan blade can be randomly adjusted under the different operating conditions, and the main technical parameters of the whole machine are that: diameter of the fan impeller: Phi 4.9 to 12.2 meters, air quantity: 100 to 950 m3/ s, blade number: 4 to 7 pieces, air pressure: greater than or equal to 100Pa and noise: no more than 72 dB (A). The invention is widely used as cooling fan in fields such as electric power, petroleum, construction, coal, metallurgy, transportation, military industry, scientific research, etc. The invention has the advantages of large air quantity, high efficiency, low noise and smooth operation, and can save the water of over 30 percent than a common water cooling tower.
Description
Affiliated technical field
The present invention relates to a kind of air-cooled blower fan of pumping cooling air, especially the large-sized wind cooling low noise fiberglass axial-flow blower.
Background technique
Existing air-cooled blower fan is in indexs such as flow, efficient, noise and running, and the problem that often runs into is that technical parameter is attended to one thing and lose sight of another, and often causes flow big, but efficient is low, noise is big, and smoothness of operation is poor.The flow that does not fit into the above fired power generating unit direct air cooling of 600MW blower fan requirement blower fan is big, efficient is high, noise is low, running is steady, safe and reliable and the water saving needs.
Summary of the invention
Existing air-cooled fan efficiency is low in order to overcome, noise is big, smoothness of operation is poor, the easy deficiency of vibration etc., the invention provides a kind of large-sized wind cooling low noise fiberglass blower fan, makes that its flow is big, efficient is high, noise is low, running is steady, economizes on water more than 30%.
The technical solution adopted for the present invention to solve the technical problems is: a kind of large-sized wind cooling low noise fiberglass blower fan is by motor, speed reducer, wheel hub, draught fan impeller, air duct and fan bridge are formed by connecting, it is characterized in that fan blade, wheel hub, speed reducer, motor directly links successively, be located on the fan bridge, above-mentioned described fan blade is the wide wing blade profile of glass fibre reinforced plastics, outer force coefficient is big, the ratio of lift coefficient to drag coefficient height, noise is low, ≤ when 100rpm turns round, outside air duct one meter than A sound level be-5～+ 2dB (A), above-mentioned described fan blade is with die forming, surface layer is glass fibre and resin compounded glued film, the core packing density is little within it, lightweight polyurethane foam, the top layer is a resin layer, smooth, wear-resisting, windage is little, air pressure efficient 〉=85%, static pressure efficiency 〉=64%, connect with the U-shaped anchor ear between above-mentioned described fan blade root and the wheel hub, the operating angle of blade can be regulated arbitrarily under different operating modes, the important technological parameters of above-mentioned described large-sized wind cooling low noise fiberglass blower fan is: 4.9～12.2 meters of draught fan impeller diameters, air quantity 100～950m
3/ s, 4～7 of the numbers of blade, air pressure 〉=100pa, noise≤72dB (A).
The invention has the beneficial effects as follows that air quantity is big, efficient is high, noise is low, running is steady, than the using water wisely of ordinary water cooling tower more than 30%.Blower fan of the present invention is widely used in fields such as electric power, oil, chemical industry, building, coal, metallurgy, traffic, military project and scientific research and uses as air cooling.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a plan view of the present invention.
Fig. 2 is a plan view of the present invention.
In Fig. 1 Fig. 2: 1. motor, 2. speed reducer, 3. fan bridge, 4. wheel hub, 5. fan blade, 6. foam glass steel air duct.
Embodiment
In Fig. 1, a kind of large-sized wind cooling low noise fiberglass blower fan is by motor (1), speed reducer (2), wheel hub (4), fan blade (5), air duct (6) and fan bridge (3) are formed by connecting, it is characterized in that fan blade (5), wheel hub (4), speed reducer (2), motor (1) directly connects successively, be located on the fan bridge (3), above-mentioned described fan blade (5) is a glass fibre reinforced plastics expanded letter wing blade profile, outer force coefficient is big, the ratio of lift coefficient to drag coefficient height, noise is low, during with≤100rpm rotation speed operation, outside foam glass steel air duct (6) one meter than A sound level be-5～+ 2dB (A), above-mentioned described fan blade is with die forming, surface layer is glass fibre and resin compounded glued film, the inner core packing density is little, lightweight polyurethane foam, the top layer is a resin layer, smooth, wear-resisting, windage is little, air pressure efficient 〉=85%, static pressure efficiency 〉=64%, connect with the U-shaped anchor ear between the root of above-mentioned described fan blade (5) and the wheel hub (4), the operating angle of fan blade (5) can be regulated arbitrarily under different operating modes, the important technological parameters of above-mentioned described large-sized wind cooling low noise fiberglass blower fan is: 4.9～12.2 meters of draught fan impeller diameter phi, air quantity 100～950m
3/ s, 4～7 of the numbers of blade, air pressure 〉=100pa, noise≤72dB (A)
Claims (5)
1. a large-sized wind cooling low noise fiberglass blower fan is formed by connecting by motor (1), speed reducer (2), wheel hub (4), fan blade (5), air duct (6) and fan bridge (3), it is characterized in that fan blade (5), wheel hub (4), speed reducer (2), motor (1) directly connect successively, are located on the fan bridge (3).
2. large-sized wind cooling low noise fiberglass blower fan according to claim 1, it is characterized in that above-mentioned described fan blade (5) is the wide wing blade profile of glass fibre reinforced plastics, outer force coefficient is big, the ratio of lift coefficient to drag coefficient height, noise is low, during with≤100rpm running, outside air duct (6) one meter than A sound level be-5～+ 2dB (A).
3. large-sized wind cooling low noise fiberglass blower fan according to claim 1, it is characterized in that above-mentioned described fan blade (5) is with die forming, the top layer is glass fiber cloth and resin compounded glued film, little, the lightweight polyurethane foam of inner core packing density, the top layer is a resin layer, smooth, wear-resisting, windage is little, air pressure efficient 〉=85%, static pressure efficiency 〉=64%.
4. large-sized wind cooling low noise fiberglass blower fan according to claim 1 is characterized in that connecting with U type anchor ear between above-mentioned described fan blade (5) root and the wheel hub (4), and the operating angle of fan blade (5) can be regulated arbitrarily under different operating modes.
5. large-sized wind cooling low noise fiberglass blower fan according to claim 1 is characterized in that its complete machine the key technical indexes is: 4.9～12.2 meters of draught fan impeller diameter phi, air quantity 100～950m
3/ s, 4～7 of the numbers of blade, air pressure 〉=100pa, noise≤72dB (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100414905A CN101140000A (en) | 2006-09-07 | 2006-09-07 | Large-sized wind cooling low noise fiberglass blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100414905A CN101140000A (en) | 2006-09-07 | 2006-09-07 | Large-sized wind cooling low noise fiberglass blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101140000A true CN101140000A (en) | 2008-03-12 |
Family
ID=39192068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100414905A Pending CN101140000A (en) | 2006-09-07 | 2006-09-07 | Large-sized wind cooling low noise fiberglass blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101140000A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103492724A (en) * | 2010-07-02 | 2014-01-01 | 斯奈克玛 | Blade having an integrated composite spar |
| CN110520619A (en) * | 2016-12-08 | 2019-11-29 | 赛创尼克株式会社 | Energy conversion device, energy conversion system and its method of operation comprising it |
-
2006
- 2006-09-07 CN CNA2006100414905A patent/CN101140000A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103492724A (en) * | 2010-07-02 | 2014-01-01 | 斯奈克玛 | Blade having an integrated composite spar |
| CN110520619A (en) * | 2016-12-08 | 2019-11-29 | 赛创尼克株式会社 | Energy conversion device, energy conversion system and its method of operation comprising it |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |