JPS6363720U

JPS6363720U -

Info

Publication number: JPS6363720U
Application number: JP15923586U
Authority: JP
Priority date: 1986-10-16
Filing date: 1986-10-16
Publication date: 1988-04-27

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案による横型軸流羽根車式流量
計の要部を破断した縦断面図、第２図は第１図の
Ａ―Ａ線に沿う断面図、第３図は支持部材側の軸
受機構を拡大した断面図、第４図は流体流路の各
部における有効開口面積の関係を表した説明図で
ある。３……整流機構、４……コア、４ａ……コアの
頂部、５……案内羽根、６……軸流羽根車、１１
，１２……軸受機構、Ｒ……流体流路、Ｒ_１……
流体流路の入口、Ｒ_２……コアの周囲の流体流路
、Ｒ_３……軸流羽根車の周囲の流体流路、Ｓ_１…
…コアの基端部の周囲における上記流体流路の有
効開口面積、Ｓ_２……軸流羽根車の周囲における
流体流路の有効開口面積。 Figure 1 is a vertical cross-sectional view of the main parts of the horizontal axial impeller flowmeter according to this invention, Figure 2 is a cross-sectional view taken along line A--A in Figure 1, and Figure 3 is a cross-sectional view of the supporting member side. FIG. 4, which is an enlarged cross-sectional view of the bearing mechanism, is an explanatory diagram showing the relationship between the effective opening areas in each part of the fluid flow path. 3... Rectification mechanism, 4... Core, 4a... Top of core, 5... Guide vane, 6... Axial flow impeller, 11
, 12...Bearing mechanism, R...Fluid flow path, _R1 ...
Inlet of the fluid flow path, R ₂ ...Fluid flow path around the core, R ₃ ...Fluid flow path around the axial impeller, S ₁ ...
...Effective opening area of the fluid flow path around the proximal end of the core, S ₂ ...Effective opening area of the fluid flow path around the axial impeller.

Claims

【実用新案登録請求の範囲】コアの周囲に複数の案内羽根が設けられてなる
整流機構と、この整流機構の背部に配備された軸
流羽根車とを備え、軸流羽根車の回転中心が軸受
機構によつて支持されている軸流羽根車式流量計
において、上記コアをその頂部が流体流路の入口側を向く
砲弾状に構成することによつて、その周囲の流体
流路の有効開口面積が流体の流れ方向にいくにし
たがつて漸次小さくなり、かつ、コアの基端部の
周囲における上記流体流路の有効開口面積が上記
軸流羽根車の周囲における流体流路の有効開口面
積と同等かほぼ同等の大きさに設定されているこ
とを特徴とする軸流羽根車式流量計。[Claims for Utility Model Registration] A rectifying mechanism including a plurality of guide vanes around a core, and an axial impeller disposed at the back of the rectifying mechanism, the center of rotation of the axial impeller being In an axial impeller flowmeter supported by a bearing mechanism, the core is shaped like a cannonball with its top facing toward the inlet of the fluid flow path, thereby increasing the efficiency of the fluid flow path around it. The opening area gradually becomes smaller in the fluid flow direction, and the effective opening area of the fluid flow path around the base end of the core is equal to the effective opening area of the fluid flow path around the axial impeller. An axial impeller type flowmeter characterized by having a size that is equal to or approximately equal to the area.