JPS62106109A - Duct loss regulating device - Google Patents
Duct loss regulating deviceInfo
- Publication number
- JPS62106109A JPS62106109A JP24396285A JP24396285A JPS62106109A JP S62106109 A JPS62106109 A JP S62106109A JP 24396285 A JP24396285 A JP 24396285A JP 24396285 A JP24396285 A JP 24396285A JP S62106109 A JPS62106109 A JP S62106109A
- Authority
- JP
- Japan
- Prior art keywords
- flow
- rotating shaft
- disc
- pipe
- shaped plate
- 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
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、管路における管路損失調整装置に係り、特に
並列運転を行うポンプ系に好適な管路損失調整装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a pipe loss adjusting device in a pipe, and particularly to a pipe loss adjusting device suitable for a pump system that operates in parallel.
一定速度で並列運転されるポンプ系においては、一台運
転時にポンプは過大流量側で運転される場合が多い。こ
の過大流量側での運転中に、ポンプがキャビテーション
による損傷を受けないようにするためには、第３図に示
すような低速のポンプを使用する方法、あるいは、ポン
プとしては高速ポンプを用い第４図に示すようなコント
ロール・バルブＣｖにより、第３図の損失曲線をｘ−ｘ
’に変えポンプの１一台運転を可能とする方法が一般的
である。前者の方法では、ポンプ及び駆動機が大型とな
る欠点があり、後者では、１台運転状態の検知及び制御
装置付コントロールバルブの使用という系が複雑化する
欠点がある。In pump systems that are operated in parallel at a constant speed, the pumps are often operated at excessive flow rates when one pump is operated. In order to prevent the pump from being damaged by cavitation during operation at excessive flow rates, it is possible to use a low-speed pump as shown in Figure 3, or to use a high-speed pump as shown in Figure 3. By using the control valve Cv as shown in Fig. 4, the loss curve in Fig. 3 can be changed to x-x.
'The most common method is to enable the operation of one pump at a time. The former method has the disadvantage that the pump and driving machine are large in size, and the latter has the disadvantage that the system of detecting the operating state of one unit and using a control valve with a control device becomes complicated.
尚、この種の装置に関連するものには特公昭４９−３０
１６１号がある。In addition, for those related to this type of equipment,
There is No. 161.
本発明の目的は外力、制御装置等を必要とせずに、必要
な管路損失を与えることが可能な管路損失調整装置を提
供することにある。An object of the present invention is to provide a conduit loss adjustment device that can provide a necessary conduit loss without requiring an external force, a control device, or the like.
本発明は、翼に生ずる揚力の特性を利用することにより
、管路内の流Ｉｆ （流速）が相対的に低い状態で必要
となる管路損失を得ることが可能である点に着目した結
果、解決策となる具体的形状を案出したものであり、管
路内に流れと直交する方向に配置された回転軸と、この
回転軸に回転自在に取付けられる円盤状の板とで構成さ
れ、円盤状の板の上側面を翼形に形成したものである。The present invention focuses on the fact that by utilizing the characteristics of the lift force generated in the wings, it is possible to obtain the necessary pipe line loss when the flow If (flow velocity) in the pipe line is relatively low. , we have devised a specific shape that will serve as a solution, and it consists of a rotating shaft placed in the pipe in a direction perpendicular to the flow, and a disk-shaped plate that is rotatably attached to this rotating shaft. , the upper side of a disc-shaped plate is shaped like an airfoil.
以下、本発明の一実施例を第１図、第２図により説明す
る。第４図の合流管中ＧＰ中に置かれた。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. It was placed in the GP in the confluence tube shown in Figure 4.
第１図、第２図のＣを中心に回転する円盤状の弁ＮＶは
低流速中では、
（Ｍ１＋１＋Ｍ４）＞（Ｍｌ１２＋Ｍ８）の状態で釣り
合い、流ｆｆ１（流速）の増加に伴い上側の流れによる
モーメントＭδ増加し、円盤はよう水平となる挙動を示
す。高流速中では、揚力によるモーメントが生ずるので
、Ｍ ｗ ｉ ’ が（Ｍｗｚ’＋Ｍ５）とほぼ等くな
り円盤状の装置はほぼ水平状態を保つ。以上の動作によ
り低流速でのみ円盤状の装置は流れに対して抵抗効果を
発輝し、第３図のｈしに相当する損失を得ることが出来
る。すなわち、一台運転時（合流管の流速が低流速時を
意味する）のみ、管路損失曲線を第３図のＸ−Ｘ′とす
ることが可能である。The disk-shaped valve NV, which rotates around C in Figures 1 and 2, is balanced in the state of (M1+1+M4)>(Ml12+M8) at low flow velocity, and as the flow ff1 (flow velocity) increases, the upper flow The moment Mδ increases, and the disk behaves as if it were becoming horizontal. At high flow speeds, a moment due to lift is generated, so M w i ' becomes approximately equal to (Mwz'+M5), and the disk-shaped device maintains an approximately horizontal state. By the above operation, the disk-shaped device exhibits a resistance effect against the flow only at low flow speeds, and a loss corresponding to h in FIG. 3 can be obtained. That is, only when one unit is operated (meaning when the flow velocity in the merging pipe is low), it is possible to set the pipe line loss curve to X-X' in FIG. 3.
尚、Ｍ−′はＭ、２′ よのも大きなモーメントを有す
るものとする。It is assumed that M-' has a larger moment than M,2'.
本発明によれば、外力、制御装置等を全く必要としない
簡単な装置でポンプ１６台運転時にキャビテーションに
よる損傷を防止出来るので、並列運転の場合に、より高
速、小型のポンプを使用することが出来、経済面の効果
は大である。According to the present invention, damage due to cavitation can be prevented when 16 pumps are operated with a simple device that does not require any external force or control device, so higher speed and smaller pumps can be used in parallel operation. The economic effects are great.
第１図、第２図は本発明の実施例を示す縦断面図、第３
図は発明の目的および従来の方法を説明する線図、第４
図は従来の方法を説明する図である。
Ｃ・・・円盤状損失′ｉＡ整装置の回転軸中心、Ｍａｓ
ｔＭ ｗ １ ’・・・左側の自重によるモーメント、
Ｍ、２゜Ｍ ｗ ｚ ’・・・右側の自重によるモーメ
ント、Ｍ３・・・流れが衝突することによるモーメント
、Ｍ４・・・流れが衝突することによるモーメント、Ｍ
５・・・翼の揚力によるモーメント。
′！−１目
″５４２０FIGS. 1 and 2 are longitudinal sectional views showing embodiments of the present invention, and FIG.
Figure 4 is a diagram explaining the purpose of the invention and the conventional method.
The figure is a diagram explaining a conventional method. C...Rotary axis center of disc-shaped loss 'iA adjustment device, Mas
tM w 1'... Moment due to left side's own weight,
M, 2゜M w z '...Moment due to right side's own weight, M3...Moment due to collision of flows, M4...Moment due to collision of flows, M
5... Moment due to lift of the wing. ′! -1st eye"5420
Claims (1)
記回転軸に回転自在に取付けられる円盤状の板とで構成
され、前記円盤状の板の上側面を翼形に形成し、前記管
路内を流動する流れが低速の場合には流れに対し抵抗体
となり、流れが高速の場合には前記円盤状の板の翼形に
働く揚力によつて無抵抗体となるようにしたことを特徴
とする管路損失調整装置。It is composed of a rotating shaft arranged in a direction perpendicular to the flow in a pipe, and a disc-shaped plate rotatably attached to the rotating shaft, and the upper surface of the disc-shaped plate is formed into an airfoil shape, When the flow flowing in the pipe is low speed, it becomes a resistance object to the flow, and when the flow is high speed, it becomes a non-resistance object due to the lift force acting on the airfoil shape of the disc-shaped plate. A conduit loss adjustment device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24396285A JPS62106109A (en) | 1985-11-01 | 1985-11-01 | Duct loss regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24396285A JPS62106109A (en) | 1985-11-01 | 1985-11-01 | Duct loss regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62106109A true JPS62106109A (en) | 1987-05-16 |
Family
ID=17111629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24396285A Pending JPS62106109A (en) | 1985-11-01 | 1985-11-01 | Duct loss regulating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62106109A (en) |
-
1985
- 1985-11-01 JP JP24396285A patent/JPS62106109A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2020033000A (en) | Canted co-axial rotor for rotor craft | |
| KR830005484A (en) | Wind Tunnel Turbine Wing Pitch Adjustable System | |
| US4653982A (en) | Windmill with controller for controlling rotor RPM | |
| JPS62106109A (en) | Duct loss regulating device | |
| US2306742A (en) | Pump | |
| CN206968972U (en) | A kind of on-plane surface aircraft of wind disturbance resistance | |
| JPH07205897A (en) | Rotor with shroud | |
| CA2348856A1 (en) | Rotor control with negative collective in high speed auto-rotation | |
| US3118594A (en) | Methods for reducing fluid drag on bodies immersed in a fluid | |
| JPS5896198A (en) | Pump of volute suction type | |
| SE456922B (en) | WASHER PUMP WITH WINGS IN THE WASHER | |
| JP2797912B2 (en) | A method for controlling azimuth of suspended load using gyroscope | |
| US2570484A (en) | Variable pitch propeller | |
| CN109573010A (en) | A method of balance gyroplane reaction torque | |
| JPH0236033Y2 (en) | ||
| WO2023188268A1 (en) | Rotary wing aircraft | |
| JPS63235669A (en) | Impeller | |
| DK413983A (en) | VENTILATOR TO AVOID UNDESIRABLE SPEED AUTOMATICALLY ON A LONG-SHEET SWINGING WINGS | |
| WO2022127099A1 (en) | Sprinkler adjustment method and apparatus for unmanned aerial vehicle, unmanned aerial vehicle and storage medium | |
| GB567710A (en) | Improvements in and relating to pitch controlling means for aeronautical propellers | |
| JPS61503044A (en) | Improved damping of rotor radial vibrations | |
| RU2001303C1 (en) | Planetary blade machine | |
| US2589527A (en) | Helicopter rotor construction | |
| JPS6143277A (en) | Power transmission apparatus for windmill | |
| GB581493A (en) | Improvements in or relating to propellers, pumps or turbines of the axial flow type |