JPH01272921A - Flow rate converting device - Google Patents
Flow rate converting deviceInfo
- Publication number
- JPH01272921A JPH01272921A JP63103641A JP10364188A JPH01272921A JP H01272921 A JPH01272921 A JP H01272921A JP 63103641 A JP63103641 A JP 63103641A JP 10364188 A JP10364188 A JP 10364188A JP H01272921 A JPH01272921 A JP H01272921A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- pressure receiving
- receiving plate
- flow
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 26
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は例えば空気等の気体の流量を測定することに
用いる流量変換装置に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a flow rate conversion device used for measuring the flow rate of a gas such as air.
「従来の技術」
本出願人は「特願昭６１−６９５８号及び特願昭６２−
．９１５４８号」（二よって片持梁形の受圧板を用いた
流量変換装置を提案した。特願昭６２−９１５４８号は
片持梁形の受圧板（二上って流体の流量を測定する構造
に加えて流体の流路Ｃニバイパス路を設け、このバイパ
ス路に片持梁形の弁を設けて可変オリフィス構造とし、
流体の流量に応じてバイパス路を流れる流体の量を制御
させ、低流量域から大流量域までの測定レンジを広くで
きる構造とし、更に測定レンジの変更をバイパス路の直
径を変更するだけで行なうことができる構造とした点を
特徴とするものである。“Prior Art” The applicant has submitted “Japanese Patent Application No. 61-6958 and Japanese Patent Application No. 62-
．． No. 91548 (2) Therefore, a flow rate conversion device using a cantilever-shaped pressure receiving plate was proposed. In addition, a fluid flow path C double bypass path is provided, and a cantilever-shaped valve is provided in this bypass path to create a variable orifice structure.
The structure controls the amount of fluid flowing through the bypass path according to the fluid flow rate, allowing a wide measurement range from low flow areas to large flow areas, and the measurement range can be changed simply by changing the diameter of the bypass path. It is characterized by a structure that allows it to
「発明が解決しようとする課題」
先に提案した流量変換器はバイパス路（二片持梁形弁を
設けた構造としたから、この弁が流体の流れに応じて振
動することがあり、この弁の振動が被測定流体を振動さ
せ、この振動が測定用の片持梁形受圧仮に伝わり安定な
測定を行なうことができない現象が発生する欠点がある
。``Problem to be Solved by the Invention'' The previously proposed flow rate converter had a structure with a bypass path (two cantilever valves), so this valve could vibrate in response to the flow of fluid. There is a drawback that the vibration of the valve causes the fluid to be measured to vibrate, and this vibration is transmitted to the measuring cantilever pressure-receiving pressure, making it impossible to perform stable measurements.
この発明の目的はバイパス路における弁の振動を除去し
、どの流量域でも安定した測定を行なうことができる流
量変換装置を提供するにある。An object of the present invention is to provide a flow rate conversion device that can eliminate valve vibration in a bypass path and perform stable measurements in any flow rate range.
「課題を解決するための手段」
この発明では被測定流体が流れる流路に測定用孔とバイ
パス用孔を設けると共に、測定用孔の下流側にこの孔を
通過した流体が板面にほぼ直交する向（−当るように配
置した片持梁形受圧板な設け、バイパス用孔（二流体の
ａＬれを層流化する細管を多数装着した構成としたもの
である。"Means for Solving the Problem" In this invention, a measurement hole and a bypass hole are provided in the flow path through which the fluid to be measured flows, and the fluid that has passed through the hole is placed downstream of the measurement hole so that the fluid passes approximately perpendicularly to the plate surface. It has a configuration in which a cantilever-shaped pressure receiving plate is arranged so as to be in the opposite direction, and a large number of bypass holes (to make the aL flow of the two fluids into a laminar flow) are installed.
この発明の構成によればバイパス路を構成する孔を通過
する流体は多数の細管を通じて層流化されて流れる。こ
の層流は流計が小流量から大流量に至る広い範囲にわた
って維持されるため、流体の流れに振動か発生すること
がない。According to the configuration of the present invention, the fluid passing through the holes constituting the bypass path flows in a laminar flow through a large number of thin tubes. This laminar flow is maintained over a wide range from small flow rates to large flow rates, so no vibrations occur in the fluid flow.
よって小流量から大流量に至る広い範囲にわたって安定
に測定を行なうことができるｔｈ量変換装置を得ること
ができる。Therefore, it is possible to obtain a th quantity converting device that can stably perform measurements over a wide range from small flow rates to large flow rates.
「実施例」 第１図乃至第４図にこの発明の一実施例を示す。"Example" An embodiment of the present invention is shown in FIGS. 1 to 4.
第］ ＩＪ＋において１は被測定流体の流入口、２は被
測定流体の流出口を示し、被測定流体（気体）は矢印Ｘ
方向に流れる。In IJ+, 1 indicates the inlet of the fluid to be measured, 2 indicates the outlet of the fluid to be measured, and the fluid to be measured (gas) is indicated by the arrow X.
flow in the direction.
３及び４は配管接続具、５は流量変換器本体、６は層流
プレートを示す。3 and 4 are piping connectors, 5 is a flow rate converter main body, and 6 is a laminar flow plate.
流計変換器本体５は第２図に示すよう（二中夫に壁７を
有し、壁７の両側にバイパス路を構成する一対の三ケ月
状の透孔８Ａ、８Ｂが形成され、壁７を貫通して測定用
透孔９が形成される。As shown in FIG. 2, the flowmeter converter main body 5 has a wall 7 at the second center, and a pair of crescent-shaped through holes 8A and 8B forming a bypass path are formed on both sides of the wall 7. A measuring through hole 9 is formed through the.
測定用透孔９はヌリノト状とされ、この透孔９の下流側
に片持梁形受圧板１１が設けられる。この片持梁形受圧
板１１は磁性体から成るバネ祠によって形１戊され、そ
の偏位量は検出コイル１２によって検出される。尚受圧
板１１の他方の遊端側には補償コイル１３が配置され、
温度補償が行なえるようにしている。また１４は受圧板
１１を１呆護するヌトノパープレートを示す。The measurement through-hole 9 is shaped like a thread, and a cantilever-shaped pressure receiving plate 11 is provided on the downstream side of the through-hole 9 . This cantilever-shaped pressure receiving plate 11 is shaped by a spring sheath made of a magnetic material, and the amount of displacement thereof is detected by a detection coil 12. A compensation coil 13 is arranged on the other free end side of the pressure receiving plate 11,
Temperature compensation is possible. Further, numeral 14 indicates a nutoper plate that protects the pressure receiving plate 11.
この発明の特徴とする構造は層流プレート６にある。層
流プレート６は第３図に示すように全体が平板状（−形
成され、この平板状の層流プレート６にバイパス用孔８
Ａ、８Ｂ＋二連通する六角形状の透孔１５Ａと１５Ｂを
形成する。また流量変換器本体５に設けた測定用透孔９
の下流側に孔１６を形成する。The characteristic structure of this invention is the laminar flow plate 6. As shown in FIG.
A, 8B+Two communicating hexagonal through holes 15A and 15B are formed. In addition, the measurement through hole 9 provided in the flow rate converter main body 5
A hole 16 is formed on the downstream side of the hole 16 .
バイパス路を構成する透孔１５Ａ、１５Ｂには流体の流
れを層流化するために多数の細管１８を装着する。細管
１８の直径は例えば１鵡程度とされる。この細管１８を
流体が流れることによって流体の流れは層流化される。A large number of thin tubes 18 are attached to the through holes 15A and 15B constituting the bypass passage in order to make the flow of fluid laminar. The diameter of the thin tube 18 is, for example, approximately one centimeter. As the fluid flows through this thin tube 18, the fluid flow becomes laminar.
透孔］、 ５ Ａ 、 １５ Ｂはそれぞれ六角形状と
した場合を示す。このように六角形状とすることによっ
て直径の小さい細管を安定（二収納させることができる
。つまり多数の管を束ねると、束ねた管の外周は自然に
六角形状（二なる。このため（皿孔１５Ａと１５Ｂを六
角形に選定したものである。The through holes], 5A, and 15B each have a hexagonal shape. This hexagonal shape allows thin tubes with small diameters to be stored stably.In other words, when many tubes are bundled, the outer periphery of the bundled tubes naturally becomes hexagonal. 15A and 15B are selected to be hexagonal.
「発明の効果」
思」−説明し定ようにこの発明によればバイパス路に多
数の細管１８を設け、バイパスする流体は全てこの細管
１８を通過する。流体が細Ｗ１８を流れることによって
流体の流れは層流化され渦等の発生が抑えられ、流体が
振動することはない。``Effects of the Invention'' As explained above, according to the present invention, a large number of thin tubes 18 are provided in the bypass path, and all the fluid to be bypassed passes through the thin tubes 18. As the fluid flows through the narrow W18, the flow of the fluid becomes laminar, the generation of vortices, etc. is suppressed, and the fluid does not vibrate.
よって受圧板１１が振動することがなく安定に流量を電
気信号に変換することができる。Therefore, the flow rate can be stably converted into an electrical signal without causing the pressure receiving plate 11 to vibrate.
然もこの発明によれば層流プレートの層流化動作は低流
量域ぶら大流量域（−至る広い範囲にわたって作用する
から、広い範囲（二わたって流量測定が可能な流量変換
器を提供することができる。However, according to this invention, the laminar flow operation of the laminar flow plate acts over a wide range from low flow range to high flow range (-), so it is possible to provide a flow rate transducer that can measure flow rate over a wide range (2). be able to.
第１図はこの発明の一実施例を説明するための断面図、
第２図はこの発明に用いた流量変換器本体の構造を説明
するための斜視図、第３図はこの発明に用いた層流プレ
ートの構造を説明するための斜視図、第４図は流量変換
器本体の要部の構造を説明するための拡大断面図である
。
１：被測定流体の流入口、２：出口、５：流量変換器本
体、６：層流プレート、７：壁、８Ａ。
８Ｂ＝バイパス用孔、９：測定用孔、１１：片持梁形受
圧板、１２：検出コイル、１８：細管。
特許出願人 株式会社コスモ計器
代 理 人 草 野 卓へ
Ｎ１
手続補正吉：
（自 発 ）
１、事件の表示 特願昭６３−１０３６４１号２、発
明の名称 流量変換装置
３、補正をする老 事件との関係 特許出願人株式
会社 二１スモΔ］器
４、代 理 人 東京都新宿区新宿四丁目２番２１号
相模ヒル （’ｎ：ｈ ０３−３５０−６１５６）５
、補正の対象 明細書中発明の詳細な説明の欄お、Ｊ
−び図面
ンス補償」と訂正する。
（２）明細書５頁６行「細管１８の直径は例えばｌ ｍ
ｍ 」を「細管１８の内径は例えば（１，５ｍｍ 」と
ａｊ止−Ｊる。
（３）図面第１図乃至第４図を添付図に訂正する。
以 」ニFIG. 1 is a sectional view for explaining one embodiment of the present invention;
Fig. 2 is a perspective view for explaining the structure of the flow converter main body used in this invention, Fig. 3 is a perspective view for explaining the structure of the laminar flow plate used in this invention, and Fig. 4 is a perspective view for explaining the structure of the flow rate converter body used in this invention. FIG. 3 is an enlarged sectional view for explaining the structure of the main part of the converter main body. 1: Inlet of measured fluid, 2: Outlet, 5: Flow rate converter main body, 6: Laminar flow plate, 7: Wall, 8A. 8B = bypass hole, 9: measurement hole, 11: cantilever pressure receiving plate, 12: detection coil, 18: thin tube. Patent applicant: Cosmo Keiki Co., Ltd. Managing Director: Taku Kusano
N1
Procedural amendments: (spontaneous) 1. Indication of the case Japanese Patent Application No. 63-103641 2. Name of the invention Flow rate conversion device 3. Relation to the case Patent applicant Co., Ltd. 21 Smo Δ] device 4 , Agent Sagami Hill, 4-2-21 Shinjuku, Shinjuku-ku, Tokyo ('n:h 03-350-6156) 5
, Subject of amendment Detailed explanation column of the invention in the specification O, J
- and drawing performance compensation.” (2) Page 5, line 6 of the specification “The diameter of the thin tube 18 is, for example, l m.
For example, the inner diameter of the thin tube 18 is (1.5 mm). (3) Figures 1 to 4 are corrected to the attached drawings.
Claims (1)
びバイパス用孔と、 Ｂ、上記測定用孔の下流側に設けられ、透孔を通過した
流体が板面にほぼ直交する向に当るように配置した片持
梁形受圧板と、 Ｃ、この受圧板の変位量を測定する変位検出器と、 Ｄ、上記バイパス用孔に装着され、この透孔を通過する
流体の流れを層流化する複数の細管と、 によって構成した流量変換装置。(1) A: A measurement hole and a bypass hole provided in the channel through which the fluid to be measured flows; B: A measurement hole and a bypass hole provided on the downstream side of the measurement hole, so that the fluid passing through the through hole is almost perpendicular to the plate surface. C. A displacement detector for measuring the amount of displacement of this pressure receiving plate; D. A displacement detector installed in the above-mentioned bypass hole to detect the flow of fluid passing through the through hole. A flow rate conversion device consisting of multiple thin tubes that convert the flow into laminar flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63103641A JPH01272921A (en) | 1988-04-25 | 1988-04-25 | Flow rate converting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63103641A JPH01272921A (en) | 1988-04-25 | 1988-04-25 | Flow rate converting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01272921A true JPH01272921A (en) | 1989-10-31 |
| JPH0512646B2 JPH0512646B2 (en) | 1993-02-18 |
Family
ID=14359394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63103641A Granted JPH01272921A (en) | 1988-04-25 | 1988-04-25 | Flow rate converting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01272921A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49148075U (en) * | 1973-04-20 | 1974-12-20 | ||
| JPS5283254A (en) * | 1975-12-30 | 1977-07-12 | Tokyo Keiso Kk | Flowmeter |
| JPS5954926A (en) * | 1982-09-22 | 1984-03-29 | Esutetsuku:Kk | Manufacture of laminar flow element |
| JPS6014121A (en) * | 1983-07-05 | 1985-01-24 | Esutetsuku:Kk | Laminar flow element |
| JPS62165121A (en) * | 1986-01-16 | 1987-07-21 | Cosmo Keiki:Kk | Flow rate conversion device |
-
1988
- 1988-04-25 JP JP63103641A patent/JPH01272921A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49148075U (en) * | 1973-04-20 | 1974-12-20 | ||
| JPS5283254A (en) * | 1975-12-30 | 1977-07-12 | Tokyo Keiso Kk | Flowmeter |
| JPS5954926A (en) * | 1982-09-22 | 1984-03-29 | Esutetsuku:Kk | Manufacture of laminar flow element |
| JPS6014121A (en) * | 1983-07-05 | 1985-01-24 | Esutetsuku:Kk | Laminar flow element |
| JPS62165121A (en) * | 1986-01-16 | 1987-07-21 | Cosmo Keiki:Kk | Flow rate conversion device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512646B2 (en) | 1993-02-18 |
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