JPS61138899A - Diagonal flow blower - Google Patents
Diagonal flow blowerInfo
- Publication number
- JPS61138899A JPS61138899A JP26113284A JP26113284A JPS61138899A JP S61138899 A JPS61138899 A JP S61138899A JP 26113284 A JP26113284 A JP 26113284A JP 26113284 A JP26113284 A JP 26113284A JP S61138899 A JPS61138899 A JP S61138899A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- blade
- suction port
- side plate
- diameter
- 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.)
- Pending
Links
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、暖房装置、空調装置等に使われる斜流送風機
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a mixed flow blower used in heating devices, air conditioners, etc.
従来の技術
従来この種の斜流送風機は、第３図に示すように、円錐
台形状のハゲ１に複数の羽根２を等ピッチで設けた羽根
車ａと、羽根２前面に吸入口４、モータ５側に吐出口６
を有するケーシング７とで構成され、前記羽根車３はケ
ーシング内部に位置し、ケーシング吸入口径側の羽根２
端面における羽根２内径が前記ケーシング吸入口４径よ
り大きく構成されている。（例えば、実開昭５４−４６
００９号公報）第３図はケーシング７が円筒の場合、第
４図はスクロールの場合を示す。又同図中、実線矢印は
空気の流れを示す。2. Description of the Related Art Conventionally, this type of mixed flow blower has an impeller a having a truncated conical bald part 1 with a plurality of blades 2 arranged at equal pitches, an inlet 4 on the front surface of the blades 2, Discharge port 6 on motor 5 side
The impeller 3 is located inside the casing, and the impeller 3 is located inside the casing, and the impeller 3 is provided with a
The inner diameter of the blade 2 at the end face is larger than the diameter of the casing suction port 4. (For example, Utility Model Kai 54-46
(No. 009 Publication) FIG. 3 shows the case where the casing 7 is cylindrical, and FIG. 4 shows the case where it is a scroll. Also, in the figure, solid line arrows indicate air flow.
発明が解決しようとする問題点
しかしながら上記のような構成では、機器の小型化にと
もない、羽根２長さが短くなり羽根２による仕事が不足
し、例えば負荷が大きい高圧損の機器構成においては送
風性能として満足できないという問題を有していた。Problems to be Solved by the Invention However, with the above configuration, as equipment becomes smaller, the length of the blades 2 becomes shorter and the work performed by the blades 2 becomes insufficient. The problem was that the performance was unsatisfactory.
本発明はかかる従来の問題を解消するもので、送風機性
能を向上させ、かつ高速回転時の羽根強度に対しても満
足させることを目的とする。The present invention is intended to solve these conventional problems, and aims to improve the blower performance and satisfy the blade strength during high-speed rotation.
問題点を解決するだめの手段
上記問題点を解決するために木売′呵の斜流送風機は、
ケーシング吸入口側の羽根端面における羽根内径を、ケ
ーシング吸入口径より小さくし、かつ前記羽根端面に設
けた側板の内径をケーシング吸入口径と同等以上とした
構成を備えたものであ 、る。Means to solve the problem In order to solve the above problem, Kibori's mixed flow blower is
The blade inner diameter at the blade end face on the casing suction port side is smaller than the casing suction port diameter, and the inner diameter of the side plate provided on the blade end face is equal to or larger than the casing suction port diameter.
作 用
本発明は上記した構成によって、羽根入口から羽根出口
迄の通路長さによる羽根仕事の増加と、側板を羽根端面
に吸入口径と同等以上の部分に取りわけることによって
一方で強度を保ち、一方で流量低下を防ぐものである。Effects The present invention has the above-described configuration, which increases the work of the blade due to the length of the passage from the blade inlet to the blade outlet, and maintains strength by dividing the side plate into a portion on the blade end face that is equal to or larger than the suction port diameter. On the other hand, it prevents a decrease in flow rate.
実施例
以下、本発明の実施例を添付図面にもとづいて説明する
。Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.
第１図において、１ｏは円耐ζ−シングで、このケーシ
ング１０内には、側板１１をケーシング１０側端面に有
する羽根１２を円錐台形状のハブ１３に設けた羽根車１
４と、前記羽根車１４を駆動させるモータ１５等が配設
されている。又、前記ケーシング１０は、側板１１側の
吸入口１６とモータ１５側の吐出口１７を有し、前記吸
入口１６径は、ケーシング１０側羽根１２端面の内径よ
り大きく、側板１１内径と同等以下としている。In FIG. 1, 1o is a circle-resistant ζ-sing, and inside this casing 10 is an impeller 1 in which a truncated conical hub 13 is provided with blades 12 having a side plate 11 on the end face on the side of the casing 10.
4, a motor 15 for driving the impeller 14, etc. are provided. Furthermore, the casing 10 has an inlet 16 on the side plate 11 side and an outlet 17 on the motor 15 side, and the diameter of the inlet 16 is larger than the inner diameter of the end surface of the blade 12 on the casing 10 side, and is equal to or smaller than the inner diameter of the side plate 11. It is said that
上記構成において、空気流れはケーシング吸入口１６よ
り羽根１２人口、羽根１２出口を通り吐出口１７へ導か
れるが、羽根１２長さが長くなることにより第２図に示
すように従来に比較して送風性能が向上する。通常ポン
プ等の流体では、上記構成の場合、衝突損失が大きく能
力低下や強度的に問題を生じるようであるが、今回の送
風機による実験結果では衝突損失以上に羽根仕事が大き
く性能向上が得られた。又高速回転等に対して強度を維
持するだめに側板１１を通常設けるが、側板１１をケー
シング１ｏ側羽根１２端面全周に設けると、吸入口１６
が小さくなった場合と同じ影響を生じ、風量が大幅に低
下する。従って本発明は、側板１１を吸入口１６と同等
以上にするととてよって、強度を保持し、風量の低下を
防ぐことができた。In the above configuration, the air flow is guided from the casing inlet 16 through the blade 12 and the blade 12 outlet to the discharge port 17, but due to the length of the blade 12 being longer, compared to the conventional case, as shown in FIG. Air blowing performance is improved. In the case of the above configuration for normal fluids such as pumps, the collision loss is large and seems to cause a decrease in performance and strength problems, but the experimental results using this blower show that the blade work is greater than the collision loss and performance is improved. Ta. In addition, the side plate 11 is normally provided in order to maintain strength against high-speed rotation, etc., but if the side plate 11 is provided all around the end surface of the casing 1o side blade 12, the suction port 16
The effect is the same as when the airflow rate becomes smaller, resulting in a significant reduction in airflow. Therefore, in the present invention, by making the side plate 11 equal to or larger than the inlet 16, the strength can be maintained and a decrease in air volume can be prevented.
発明の効果
以上のように本発明の斜流送風機によれば次の効果が得
られる。Effects of the Invention As described above, the mixed flow blower of the present invention provides the following effects.
（１） ケーシング側羽根内径をケーシング吸入口径
より小としているので、羽根入口から羽根出口迄の長さ
が長くなり、羽根による仕事が増え送風性能が向上する
。(1) Since the inner diameter of the casing-side impeller is smaller than the casing suction port diameter, the length from the impeller inlet to the impeller outlet becomes longer, which increases the work done by the impeller and improves the blowing performance.
（２） 上記構成において羽根側板の内径を、ケーシ
ング吸入口径と同等以上にすることによって、流量低下
を防ぎ強度を保持することが出来る。(2) In the above configuration, by making the inner diameter of the blade side plate equal to or larger than the casing suction port diameter, a decrease in flow rate can be prevented and strength can be maintained.
第１図は本発明の一実施例の斜流送風機の縦断面図、第
２図は本発明と従来の斜流送風機を比較した送風特性図
、第３図は従来の斜流送風機の縦断面図、第４図はケー
シングが異なる従来の斜流送風機の縦断面図である。
１１・・・・・・側板、１２・・・・・・羽根、１３・
・・・・・ハブ、１４・・・・・・羽根車、１０・・・
・・・ケーシング、１６・・・・・・ケーシング吸入口
。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
ｆｌ・・・ イ＠’ｌ 扱
１２・・羽 ）！良
第２図
ノＬ量イ介、敢Fig. 1 is a vertical cross-sectional view of a mixed-flow blower according to an embodiment of the present invention, Fig. 2 is a blowing characteristics diagram comparing the present invention and a conventional mixed-flow blower, and Fig. 3 is a longitudinal cross-section of a conventional mixed-flow blower. 4 are longitudinal sectional views of a conventional mixed flow blower with a different casing. 11...Side plate, 12...Blade, 13.
...Hub, 14...Impeller, 10...
...Casing, 16...Casing inlet. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure fl... I@'l Handling 12...feather)! Good figure 2 L amount is suke, daring
Claims (1)
根車をケーシング内に配設し、ケーシング吸入口側羽根
端面の内径を、ケーシング吸入口径より小とし、かつ前
記側板の内径をケーシング吸入口径と同等以上とした斜
流送風機。An impeller consisting of a side plate and a truncated conical hub having a plurality of blades is disposed in the casing, and the inner diameter of the blade end face on the casing suction port side is smaller than the casing suction port diameter, and the inner diameter of the side plate is set to be the casing suction port diameter. Diagonal flow blower with the same or higher performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26113284A JPS61138899A (en) | 1984-12-11 | 1984-12-11 | Diagonal flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26113284A JPS61138899A (en) | 1984-12-11 | 1984-12-11 | Diagonal flow blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61138899A true JPS61138899A (en) | 1986-06-26 |
Family
ID=17357535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26113284A Pending JPS61138899A (en) | 1984-12-11 | 1984-12-11 | Diagonal flow blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61138899A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375974A (en) * | 1992-12-08 | 1994-12-27 | Asea Brown Boveri Ltd. | Stabilizing device for extending the characteristic diagram of a compressor |
| US5810557A (en) * | 1996-07-18 | 1998-09-22 | The Penn Ventilation Companies, Inc. | Fan wheel for an inline centrifugal fan |
| WO2022080107A1 (en) * | 2020-10-13 | 2022-04-21 | 株式会社日立製作所 | Open-type mixed flow impeller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5037525U (en) * | 1973-07-27 | 1975-04-18 | ||
| JPS5515344B1 (en) * | 1970-08-28 | 1980-04-23 |
-
1984
- 1984-12-11 JP JP26113284A patent/JPS61138899A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5515344B1 (en) * | 1970-08-28 | 1980-04-23 | ||
| JPS5037525U (en) * | 1973-07-27 | 1975-04-18 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375974A (en) * | 1992-12-08 | 1994-12-27 | Asea Brown Boveri Ltd. | Stabilizing device for extending the characteristic diagram of a compressor |
| US5810557A (en) * | 1996-07-18 | 1998-09-22 | The Penn Ventilation Companies, Inc. | Fan wheel for an inline centrifugal fan |
| WO2022080107A1 (en) * | 2020-10-13 | 2022-04-21 | 株式会社日立製作所 | Open-type mixed flow impeller |
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