JPS63124622U - - Google Patents
Info
- Publication number
- JPS63124622U JPS63124622U JP1580787U JP1580787U JPS63124622U JP S63124622 U JPS63124622 U JP S63124622U JP 1580787 U JP1580787 U JP 1580787U JP 1580787 U JP1580787 U JP 1580787U JP S63124622 U JPS63124622 U JP S63124622U
- Authority
- JP
- Japan
- Prior art keywords
- flow
- jet nozzle
- jet
- change
- flow rate
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims 3
- 238000005259 measurement Methods 0.000 claims 2
- 230000000087 stabilizing effect Effects 0.000 claims 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
- G01F1/3227—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters using fluidic oscillators
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Description
第１図は本考案の実施例を示す断面図、第２図
は本考案の実験結果を示すグラフである。第３図
は本考案の別実施例を示す断面図である。第４図
は従来例を示す断面図、第５図は従来例の実験結
果を示すグラフである。
２……管路縮小部、３……噴出ノズル、５……
管路拡大部、６ａ，６ｂ……制御ノズル、７ａ，
７ｂ……帰還流路、８ａ，８ｂ……隔壁、９ａ，
９ｂ……隔壁、１０ａ，１０ｂ……排出路、１２
……ターゲツト、１２ａ……ターゲツトの噴出ノ
ズル側の面、１４……センサー、Ａ……隔壁面、
Ｘ，Ｙ……直線。
FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a graph showing experimental results of the present invention. FIG. 3 is a sectional view showing another embodiment of the present invention. FIG. 4 is a sectional view showing a conventional example, and FIG. 5 is a graph showing experimental results of the conventional example. 2...Pipe reduction part, 3...Blowout nozzle, 5...
Pipe expansion portion, 6a, 6b...control nozzle, 7a,
7b... Return flow path, 8a, 8b... Partition wall, 9a,
9b... Bulkhead, 10a, 10b... Discharge path, 12
...Target, 12a...The surface of the target on the jet nozzle side, 14...Sensor, A...The partition wall surface,
X, Y...straight line.
Claims (1)
をその順に流動方向に連ねて形成し、前記噴出ノ
ズル３と管路拡大部５の境界部に、一対の制御ノ
ズル６ａ，６ｂを、前記噴出ノズル３の噴出方向
に対してほぼ直角方向に向かつて、かつ、相対向
して形成し、前記両制御ノズル６ａ，６ｂ夫々と
前記管路拡大部５の下流側を接続する一対の帰還
流路７ａ，７ｂを形成し、前記管路拡大部５にお
ける流動方向切換安定化のためのターゲツト１２
を設け、前記噴出ノズル３からの噴流の流動方向
変化に起因する圧力又は流量変化を検出する流量
測定用センサー１４を設けたフルイデイツク流量
計であつて、前記管路拡大部５と制御ノズル６ａ
，６ｂと帰還流路７ａ，７ｂを区画形成する一対
の隔壁８ａ，８ｂに、円柱状又はほぼ円柱状の外
周面を備えさせ、前記両隔壁８ａ，８ｂの外周面
中心どうしを結ぶ直線Ｘと、前記両隔壁８ａ，８
ｂの前記制御ノズル６ａ，６ｂ側の先端どうしを
結ぶ直線Ｙとの間に、前記ターゲツト１２の前記
噴出ノズル３側に向かう面１２ａを配置し、前記
両帰還流路７ａ，７ｂの終端側部分を形成する隔
壁９ａ，９ｂのうち、前記円柱状又はほぼ円柱状
の外周面に対向する隔壁面Ａを、その外周面と同
芯又はほぼ同芯の円柱面状に形成し、前記管路拡
大部５に対する一対の排出路１０ａ，１０ｂを、
入口が前記帰還流路７ａ，７ｂのうち前記外周面
中心どうしを結ぶ直線Ｘの近くに位置するように
形成してあるフルイデイツク流量計。 Pipe reduction section 2, jet nozzle 3, and pipe enlargement section 5
are formed in series in the flow direction, and a pair of control nozzles 6a and 6b are provided at the boundary between the jet nozzle 3 and the expanded pipe section 5, oriented in a direction substantially perpendicular to the jet direction of the jet nozzle 3. A pair of return flow passages 7a and 7b are formed to face each other and connect the control nozzles 6a and 6b to the downstream side of the conduit enlarged part 5, respectively. Target 12 for stabilizing flow direction switching in
The fluidic flowmeter is equipped with a flow rate measurement sensor 14 that detects a change in pressure or flow rate caused by a change in the flow direction of the jet flow from the jet nozzle 3, and the fluidic flow meter is equipped with a flow rate measurement sensor 14 that detects a change in pressure or flow rate caused by a change in the flow direction of the jet flow from the jet nozzle 3, and the flow meter includes
, 6b and the return flow paths 7a, 7b are provided with a cylindrical or substantially cylindrical outer peripheral surface, and a straight line X connecting the centers of the outer peripheral surfaces of both the partition walls 8a, 8b. , both partition walls 8a, 8
The surface 12a of the target 12 facing the jet nozzle 3 side is arranged between the straight line Y connecting the tips of the control nozzles 6a and 6b side of Of the partition walls 9a and 9b forming the duct, the partition surface A facing the cylindrical or substantially cylindrical outer circumferential surface is formed into a cylindrical surface concentric or substantially concentric with the outer circumferential surface, and the conduit expansion A pair of discharge passages 10a, 10b for the section 5,
A fluidic flowmeter in which the inlet is located near a straight line X connecting the centers of the outer peripheral surfaces of the return channels 7a and 7b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1580787U JPH0545931Y2 (en) | 1987-02-05 | 1987-02-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1580787U JPH0545931Y2 (en) | 1987-02-05 | 1987-02-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63124622U true JPS63124622U (en) | 1988-08-15 |
| JPH0545931Y2 JPH0545931Y2 (en) | 1993-11-30 |
Family
ID=30807081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1580787U Expired - Lifetime JPH0545931Y2 (en) | 1987-02-05 | 1987-02-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0545931Y2 (en) |
-
1987
- 1987-02-05 JP JP1580787U patent/JPH0545931Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0545931Y2 (en) | 1993-11-30 |
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