JP2002322998A - Wear resistant structure of moving vane - Google Patents
Wear resistant structure of moving vaneInfo
- Publication number
- JP2002322998A JP2002322998A JP2001127519A JP2001127519A JP2002322998A JP 2002322998 A JP2002322998 A JP 2002322998A JP 2001127519 A JP2001127519 A JP 2001127519A JP 2001127519 A JP2001127519 A JP 2001127519A JP 2002322998 A JP2002322998 A JP 2002322998A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- wear
- wind
- butadiene rubber
- coating material
- 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.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空調機器の冷却塔
の冷却ファン、サイロの換気扇、地下鉄やトンネルの換
気扇等に用いる回転羽根の磨耗防止構造に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing wear of rotating blades used for a cooling fan of a cooling tower of an air conditioner, a ventilation fan of a silo, a ventilation fan of a subway or a tunnel, and the like.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】大型の
空調設備等では冷却塔が用いられるが、この冷却塔は例
えば図３に示すように構成されている。塔本体１の下部
には空気の吸入口２を設けてあり、塔本体１の上部には
空気の吐出口３を設けてあり、吐出口３には冷却すると
き送風する冷却ファン４を配置してある。塔本体１の内
部には冷却水を散水する散水管５を配置してあり、散水
管５の下方には気水を接触させる接触材６を配置してあ
り、冷却ファン４と散水管５との間には水の飛散防止材
７を介装してある。そして冷却ファン４を回転駆動する
と共に散水管５から散水すると、吸入口２から吸入され
た空気は接触材６、飛散防止材７を通って吐出口３から
吐出され、一方散水管５から散水された水が接触材６を
通り、接触材６で気水が接触することにより冷却水が冷
却される。2. Description of the Related Art A cooling tower is used in a large-sized air conditioner or the like, and the cooling tower is configured as shown in FIG. 3, for example. An air inlet 2 is provided at a lower portion of the tower body 1, an air outlet 3 is provided at an upper portion of the tower body 1, and a cooling fan 4 for blowing air when cooling is arranged at the outlet 3. It is. A water pipe 5 for spraying cooling water is disposed inside the tower body 1, and a contact member 6 for contacting air and water is disposed below the water pipe 5, and the cooling fan 4 and the water pipe 5 are connected to each other. A water scattering prevention member 7 is interposed therebetween. When the cooling fan 4 is driven to rotate and water is sprinkled from the water sprinkling pipe 5, the air sucked from the suction port 2 is discharged from the discharge port 3 through the contact material 6 and the scattering prevention material 7, while being sprinkled from the water sprinkling pipe 5. Cooled water is cooled by the water flowing through the contact member 6 and the contact of the contact member 6 with steam.
【０００３】ところで、従来、上記冷却塔の冷却ファン
４の羽根はガラス繊維入り強化プラスチック（ＧＦＲ
Ｐ）にて形成されている。このとき羽根は所定の三次元
形状に形成されると共に軽量化のために内部が中空にな
るように形成されている。[0003] Conventionally, the blades of the cooling fan 4 of the above-mentioned cooling tower are made of reinforced plastic (GFR) containing glass fiber.
P). At this time, the blades are formed in a predetermined three-dimensional shape, and are formed so that the inside becomes hollow for weight reduction.
【０００４】ところが、上記のような冷却ファン４で送
風するとき冷却水に含まれる防錆材の固形化した粒子や
粒状化した水が羽根の風切り部に衝突して羽根の風切り
部が磨耗しやすく、羽根の寿命が短いという問題があっ
た。このために短い周期で羽根を交換しなければならな
く、メンテナンスに手間がかかると共にコストがかかる
という問題がある。However, when air is blown by the cooling fan 4 as described above, the solidified particles of the rust preventive material contained in the cooling water and the granulated water collide with the blades of the blades, and the blades of the blades are worn. And the life of the blade is short. For this reason, it is necessary to replace the blade in a short cycle, and there is a problem that maintenance is troublesome and costly.
【０００５】このため、従来、ＧＦＲＰ製の羽根の風切
り部にエポキシ系やウレタン系の樹脂塗膜を被覆するこ
とにより耐磨耗性を付与する試みも行われているが、耐
磨耗性の向上が殆ど図れていないのが現状であり、羽根
の寿命は依然として短いものであった。[0005] For this reason, attempts have conventionally been made to impart abrasion resistance by coating an air-cut portion of a GFRP blade with an epoxy or urethane resin coating film. At present, little improvement has been achieved, and the life of the blade is still short.
【０００６】耐磨耗性材料としてはＳｉＮ、ＳｉＣ、Ａ
ｌ2Ｏ3等のセラミックス、タングステンカーバイド等の
超硬合金があるが、セラミックスや超硬合金を被覆する
場合、これらの５ｍｍ角程度のチップを多数並べて張り
付けなければならなく、コスト的に非常に高価になると
いう問題があり、またこれらのセラミックスや超硬合金
は比重が重くて羽根の重量が増すという問題がある。[0006] As the wear-resistant material, SiN, SiC, A
There are ceramics such as l 2 O 3 and cemented carbides such as tungsten carbide. However, when coating ceramics and cemented carbides, it is necessary to arrange a large number of these chips of about 5 mm square and stick them, which is very cost-effective. There is a problem that they are expensive, and these ceramics and cemented carbides have a problem that the specific gravity is heavy and the weight of the blades increases.
【０００７】本発明は叙述の点に鑑みてなされたもので
あって、風切り部の耐磨耗性を向上させて羽根の寿命を
向上でき、しかも安価で且つ重量を増すことなく羽根の
寿命を向上できる回転羽根の磨耗防止構造を提供するこ
とを課題とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above description, and can improve the abrasion resistance of a windbreak portion to extend the life of a blade, and can reduce the life of the blade at a low cost without increasing the weight. An object of the present invention is to provide a rotating blade abrasion preventing structure that can be improved.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
本発明の回転羽根の磨耗防止構造は、回転駆動される羽
根８の風切り部９にビッカース硬度が６０〜７０のブタ
ジェン系ゴムの耐磨耗被覆材１０を被着して成ることを
特徴とする。ビッカース硬度が６０〜７０のブタジェン
系ゴムは耐水性があると共に粒子に対する高い耐磨耗性
があり、このブタジェン系ゴムの耐磨耗被覆材１０で被
覆することで風切り部の耐磨耗性を大幅に向上して寿命
を大幅に向上できる。このために羽根８の交換の周期を
長くしてメンテナンスに要する手間やコストを低減でき
る。またゴムのシート状の耐磨耗被覆材１０を貼るだけ
のために安価に耐磨耗性を向上できると共に重量を増す
ことなく耐磨耗性を向上できる。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a rotating blade abrasion preventing structure according to the present invention is provided in a wind-swept portion 9 of a rotating blade 8 in which a Vickers hardness of 60 to 70 butadiene rubber is used. It is characterized by being provided with a wear coating material 10. Butadiene rubber having a Vickers hardness of 60 to 70 is water-resistant and has high abrasion resistance to particles. By coating the butadiene rubber with the abrasion-resistant coating material 10, the abrasion resistance of the wind-off portion is reduced. The life is greatly improved, and the life is greatly improved. Therefore, the replacement cycle of the blades 8 can be lengthened to reduce the labor and cost required for maintenance. Further, since the abrasion-resistant covering material 10 in the form of a rubber sheet is merely applied, the abrasion resistance can be improved at low cost and the abrasion resistance can be improved without increasing the weight.
【０００９】またブタジェン系ゴムはスチレンブタジェ
ンゴムであることを特徴とすることも好ましい。It is also preferable that the butadiene rubber is styrene-butadiene rubber.
【００１０】また羽根８の基層１１に凹部１２を凹設す
ると共にこの凹部１２に埋設するように耐磨耗被覆材１
０を被着して成ることを特徴とすることも好ましい。こ
の場合、耐磨耗被覆材１０を被覆しても表面に段差がで
きにくくて風切り効果が低下しなくて羽根８の送風効率
を向上できる。A recess 12 is formed in the base layer 11 of the blade 8, and the wear-resistant coating material 1 is buried in the recess 12.
It is also preferable that 0 is attached. In this case, even if the wear-resistant coating material 10 is coated, it is difficult to form a step on the surface, and the blowing effect is not reduced, so that the blowing efficiency of the blade 8 can be improved.
【００１１】[0011]
【発明の実施の形態】羽根８は図１に示すような形状に
ＧＦＲＰで形成されている。かかる羽根８は三次元形状
に形成されているが、軽量化のために内部が中空になる
ように形成されている。この羽根８の基層１１の厚さは
例えば２ｍｍ程度である。この羽根８の回転するとき風
を切る風切り部９には耐磨耗被覆材１０を被着してあ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS A blade 8 is formed of GFRP in a shape as shown in FIG. Although the blades 8 are formed in a three-dimensional shape, the blades 8 are formed so that the inside becomes hollow for weight reduction. The thickness of the base layer 11 of the blade 8 is, for example, about 2 mm. An abrasion-resistant covering material 10 is applied to the wind-off section 9 that cuts off the wind when the blade 8 rotates.
【００１２】かかる耐磨耗被覆材１０はビッカース硬度
（Ｈｖ）が６０〜７０のブタジェン系ゴムが用いられて
いる。このビッカース硬度（Ｈｖ）が６０〜７０のブタ
ジェン系ゴムとしてはスチレンブタジェンゴム（ＳＢ
Ｒ）が望ましいが、ニトリルブタジェンゴム（ＮＢＲ）
でもよい。このブタジェン系ゴムよりなる耐磨耗被覆材
１０は薄い帯シート状に形成されており、羽根８の風切
り部９に耐磨耗被覆材１０を沿わせて貼り合わせてあ
る。耐磨耗被覆材１０を貼り合わせるとき接着剤を介し
て接着するがこの接着剤層の厚さは５０μｍ以下である
ことが望ましい。The wear-resistant coating 10 is made of butadiene rubber having a Vickers hardness (Hv) of 60 to 70. The butadiene rubber having a Vickers hardness (Hv) of 60 to 70 is styrene-butadiene rubber (SB).
R) is preferred, but nitrile butadiene rubber (NBR)
May be. The wear-resistant coating material 10 made of this butadiene rubber is formed in a thin band sheet shape, and the wear-resistant coating material 10 is attached to the wind-cut portion 9 of the blade 8 along the same. When the abrasion-resistant coating material 10 is bonded, it is bonded via an adhesive, but the thickness of the adhesive layer is desirably 50 μm or less.
【００１３】羽根８の風切り部９に耐磨耗被覆材１０を
被覆するとき、図２（ａ）のように羽根８の基層１１の
表面側を研磨して一定の深さの凹部１２を形成し、この
凹部１２に図２（ｂ）のように耐磨耗被覆材１０に嵌め
て貼り合わせることが望ましい。例えば耐磨耗被覆材１
０の厚さは１ｍｍであり、羽根８の基層１１の厚さは２
ｍｍであり、基層１１に深さｄが０．５ｍｍの凹部１２
が形成され、この凹部１２に埋めるように耐磨耗被覆材
１０が貼り合わせられる。このとき耐磨耗被覆材１０の
表面と基層１１の表面との間の段差ｈが０．５ｍｍとな
るが、この程度の段差ｈでは風切り効果を妨げることが
ない。勿論、基層１１の厚さが厚い場合、深さｄが１ｍ
ｍの凹部１２を形成し、この凹部１２に埋めるように耐
磨耗被覆材１０を貼り合わせてもよい。この場合、段差
ができなくて風切り効果を妨げることがない。また風切
り効果を妨げないなら、凹部１２を設けないで直接貼り
付けてもよい。When the wind-resistant portion 9 of the blade 8 is coated with the wear-resistant coating material 10, the surface side of the base layer 11 of the blade 8 is polished to form a concave portion 12 having a constant depth as shown in FIG. Then, it is desirable that the recess 12 is fitted to the abrasion-resistant covering material 10 as shown in FIG. For example, wear-resistant coating material 1
0 is 1 mm, and the thickness of the base layer 11 of the blade 8 is 2 mm.
mm, and the depth d is 0.5 mm in the base layer 11.
Is formed, and the wear-resistant coating material 10 is bonded so as to fill the recess 12. At this time, the step h between the surface of the wear-resistant coating material 10 and the surface of the base layer 11 is 0.5 mm, but such a step h does not hinder the wind breaking effect. Of course, when the thickness of the base layer 11 is large, the depth d is 1 m.
m may be formed, and the abrasion-resistant covering material 10 may be bonded so as to fill the recess 12. In this case, there is no step to prevent the wind breaking effect. If the wind-off effect is not hindered, it may be directly attached without providing the recess 12.
【００１４】上記耐磨耗被覆材１０としてのビッカース
硬度が６０〜７０のブタジェン系ゴムは耐水性があると
共に粒子に対する高い耐磨耗性があり、このブタジェン
系ゴムの耐磨耗被覆材１０で被覆することで風切り部９
の耐磨耗性を大幅に向上して寿命を大幅に向上できる。
またゴムの帯シート状の耐磨耗被覆材１０を貼るだけの
ために安価に耐磨耗性を向上できると共に重量を増すこ
となく耐磨耗性を向上できる。The butadiene rubber having a Vickers hardness of 60 to 70 as the wear-resistant coating material 10 has water resistance and high abrasion resistance to particles. Winding part 9 by coating
The abrasion resistance is greatly improved, and the life can be greatly improved.
In addition, the wear resistance can be improved inexpensively and the wear resistance can be improved without increasing the weight since the wear-resistant coating material 10 in the form of a rubber band sheet is merely applied.
【００１５】ブタジェン系ゴムの一例としてスチレンブ
タジェンゴム（ＳＢＲ）の硬度による性能比較を下記の
表１に示す。これはＳＳ材（炭素鋼）の表面に厚さ３ｍ
ｍのゴム材を張り付け、サンドブラストすることで穴が
貫通するまでの時間を測定した。ここでＳＢＲ５５はビ
ッカース硬度が５５であり、ＳＢＲ６５はビッカース硬
度が６５であり、ＳＢＲ８０はビッカース硬度が８０で
ある。Table 1 below shows a comparison of the performance of styrene butadiene rubber (SBR) as an example of a butadiene rubber based on hardness. This is 3m thick on the surface of SS material (carbon steel)
Then, the time required for the hole to penetrate was measured by applying a rubber material having a thickness of m and sandblasting. Here, SBR55 has a Vickers hardness of 55, SBR65 has a Vickers hardness of 65, and SBR80 has a Vickers hardness of 80.
【００１６】[0016]
【表１】 [Table 1]
【００１７】この結果よりビッカース硬度が６０〜７０
のスチレンブタジェンゴムが飛び抜けて耐磨耗性が良い
ことがわかる。The results show that the Vickers hardness is 60-70.
It can be seen that the styrene-butadiene rubber of the above-mentioned No. 1 is outstanding and has good abrasion resistance.
【００１８】ところで、冷却塔の冷却ファンの羽根は駆
動しているとき風速４５ｍ／ｓｅｃ程度の環境に晒され
るためにＧＦＲＰで単に形成した羽根はおおよそ寿命は
１年程度であるが、上記のようにビッカース硬度が６０
〜７０のスチレンブタジェンゴムの耐磨耗被覆材を被覆
すると寿命は１０倍程度長くなると考えられる。By the way, the blades of the cooling fan of the cooling tower are exposed to an environment at a wind speed of about 45 m / sec when driven, so that the blades simply formed by GFRP have a service life of about one year. Has Vickers hardness of 60
It is considered that the life is extended by about 10 times when the wear-resistant coating material of styrene-butadiene rubber is used.
【００１９】なお、上記例では冷却塔の冷却ファンに用
いる羽根について述べたが、粉塵の飛び散る環境で使用
される送風手段の羽根に有用に利用できる。つまり、サ
イロの換気扇、地下鉄の換気扇、トンネルの換気扇等の
羽根として利用できる。In the above example, the blade used for the cooling fan of the cooling tower has been described. However, the blade can be effectively used for the blade of the blowing means used in an environment where dust scatters. In other words, it can be used as a blade for a silo ventilation fan, a subway ventilation fan, a tunnel ventilation fan, and the like.
【００２０】[0020]
【発明の効果】本発明は回転駆動される羽根の風切り部
にビッカース硬度が６０〜７０のブタジェン系ゴムの耐
磨耗被覆材を被着しているので、風切り部の耐磨耗性を
大幅に向上して寿命を大幅に向上できるものであり、従
って羽根の交換の周期を長くしてメンテナンスに要する
手間やコストを低減できるものであり、またゴムのシー
ト状の耐磨耗被覆材を貼るだけのために安価に耐磨耗性
を向上できると共に重量を増すことなく耐磨耗性を向上
できるものである。According to the present invention, since the abrasion-resistant coating material of butadiene rubber having a Vickers hardness of 60 to 70 is applied to the wind-driving portion of the blade to be rotated, the abrasion resistance of the wind-driving portion is greatly improved. It can greatly improve the service life, and therefore can extend the cycle of blade replacement to reduce the labor and cost required for maintenance, and apply a rubber sheet-like wear-resistant coating material. Therefore, the wear resistance can be improved inexpensively and the wear resistance can be improved without increasing the weight.
【００２１】また羽根の基層に凹部を凹設すると共にこ
の凹部に埋設するように耐磨耗被覆材を被着すると、耐
磨耗被覆材を被覆しても表面に段差ができにくくて風切
り効果が低下しなくて羽根の送風効率を向上できるもの
である。Further, when a concave portion is formed in the base layer of the blade and a wear-resistant coating material is applied so as to be embedded in the concave portion, even if the wear-resistant coating material is coated, a step is hardly formed on the surface, so that the wind breaking effect is obtained. Is not reduced, and the air blowing efficiency of the blade can be improved.
【図１】本発明の実施の形態の一例の羽根の平面図であ
る。FIG. 1 is a plan view of a blade according to an example of an embodiment of the present invention.
【図２】（ａ）は同上の羽根に凹部を形成した状態の要
部の断面図、（ｂ）は凹部に埋設して耐磨耗被覆材を被
着した状態の要部の断面図である。FIG. 2A is a cross-sectional view of a main part in a state in which a concave portion is formed in the blade, and FIG. 2B is a cross-sectional view of a main part in a state in which a wear-resistant coating material is embedded in the concave part. is there.
【図３】冷却塔を示す概略断面図である。FIG. 3 is a schematic sectional view showing a cooling tower.
８ 羽根 ９ 風切り部 １０ 耐磨耗被覆材 １１ 基層 １２ 凹部 REFERENCE SIGNS LIST 8 blade 9 wind-off portion 10 wear-resistant covering material 11 base layer 12 recess
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山崎 茂 大阪市中央区淡路町四丁目４番11号 株式 会社アーバネックス内 (72)発明者 岸本 行央 大阪市中央区平野町四丁目１番２号大阪瓦 斯株式会社内 (72)発明者 高江 勉 大阪市中央区平野町四丁目１番２号大阪瓦 斯株式会社内 Ｆターム(参考） 3H033 AA03 AA14 AA18 BB02 BB08 CC01 DD06 DD26 EE11 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeru Yamazaki 4-4-1, Awajicho, Chuo-ku, Osaka City Inside Urbanex Co., Ltd. (72) Inventor Yukio Kishimoto 4-1-2, Hiranocho, Chuo-ku, Osaka-shi No. Osaka Gas Co., Ltd. (72) Inventor Tsutomu Takae 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi Osaka Gas Co., Ltd. F-term (reference) 3H033 AA03 AA14 AA18 BB02 BB08 CC01 DD06 DD26 EE11
Claims (3)
ース硬度が６０〜７０のブタジェン系ゴムの耐磨耗被覆
材を被着して成ることを特徴とする回転羽根の磨耗防止
構造。An abrasion preventing structure for a rotating blade, wherein a wear-resistant coating material of butadiene rubber having a Vickers hardness of 60 to 70 is applied to a wind-swept portion of the rotating blade.
ェンゴムであることを特徴とする請求項１記載の回転羽
根の磨耗防止構造。2. The structure of claim 1, wherein the butadiene rubber is styrene-butadiene rubber.
凹部に埋設するように耐磨耗被覆材を被着して成ること
を特徴とする請求項１または請求項２記載の回転羽根の
磨耗防止構造。3. The rotary blade according to claim 1, wherein a concave portion is formed in the base layer of the blade, and a wear-resistant coating material is applied so as to be embedded in the concave portion. Wear prevention structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001127519A JP2002322998A (en) | 2001-04-25 | 2001-04-25 | Wear resistant structure of moving vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001127519A JP2002322998A (en) | 2001-04-25 | 2001-04-25 | Wear resistant structure of moving vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002322998A true JP2002322998A (en) | 2002-11-08 |
Family
ID=18976375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001127519A Withdrawn JP2002322998A (en) | 2001-04-25 | 2001-04-25 | Wear resistant structure of moving vane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002322998A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434499A (en) * | 2011-12-26 | 2012-05-02 | 刘立文 | Explosionproof fan |
| WO2012102294A1 (en) * | 2011-01-26 | 2012-08-02 | 藤倉ゴム工業株式会社 | Blade and protective laminated sheet for blade |
| JP2013155723A (en) * | 2012-01-31 | 2013-08-15 | Mitsubishi Heavy Ind Ltd | Wind turbine rotor blade and wind power generator having the same |
| JP2016029327A (en) * | 2015-10-15 | 2016-03-03 | トータルエアーサービス株式会社 | cooling tower |
-
2001
- 2001-04-25 JP JP2001127519A patent/JP2002322998A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012102294A1 (en) * | 2011-01-26 | 2012-08-02 | 藤倉ゴム工業株式会社 | Blade and protective laminated sheet for blade |
| JP5059249B2 (en) * | 2011-01-26 | 2012-10-24 | 藤倉ゴム工業株式会社 | Wing body and laminated protective sheet for the wing body |
| KR101315841B1 (en) | 2011-01-26 | 2013-10-14 | 후지쿠라 고무 코교 가부시끼가이샤 | Wing blade and laminated protective sheet thereof |
| US8770942B2 (en) | 2011-01-26 | 2014-07-08 | Fujikura Rubber Ltd | Blade and laminated protective sheet for the blade |
| CN102434499A (en) * | 2011-12-26 | 2012-05-02 | 刘立文 | Explosionproof fan |
| JP2013155723A (en) * | 2012-01-31 | 2013-08-15 | Mitsubishi Heavy Ind Ltd | Wind turbine rotor blade and wind power generator having the same |
| JP2016029327A (en) * | 2015-10-15 | 2016-03-03 | トータルエアーサービス株式会社 | cooling tower |
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Legal Events
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| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20080701 |