JP2006250955A - 非汚染性本体を有する腐食性流体内の流量計 - Google Patents
非汚染性本体を有する腐食性流体内の流量計 Download PDFInfo
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- JP2006250955A JP2006250955A JP2006174410A JP2006174410A JP2006250955A JP 2006250955 A JP2006250955 A JP 2006250955A JP 2006174410 A JP2006174410 A JP 2006174410A JP 2006174410 A JP2006174410 A JP 2006174410A JP 2006250955 A JP2006250955 A JP 2006250955A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
-
- 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
- G01F1/34—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 measuring pressure or differential pressure
- G01F1/36—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/40—Details of construction of the flow constriction devices
- G01F1/44—Venturi tubes
-
- 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
- G01F1/34—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 measuring pressure or differential pressure
- G01F1/36—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/363—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
- Detergent Compositions (AREA)
- Sampling And Sample Adjustment (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
【解決手段】絶縁部材を有する非汚染の流量計が開示されている。該流量計は、導管のくぼみ部分の反対側に位置されている2つの圧力センサ変換器を含む。各圧力変換器は、絶縁部材によって導管を通じて流体の流れにさらされることから隔離されている。流量計は、腐食性材料を運ぶ流体流路内にインラインで配置され、ここにおいて、2つの圧力センサ間の圧力差の平方根は、流体が流れる導管内の流量の割合を決定することによって演算される。流量計は、流体流路内の温度変化を補償い、更に、流体が流れる導管内の圧力又は流量の割合がしきい値を超え、あるいは下回ったとき警報を発する。また、本発明に係る流量計は、不純物、不要なイオン、又は蒸気の流路への導入を回避する。
【選択図】図4
Description
26…縦穴 28…第1のキャビティ
30…第2のキャビティ 34…隔壁
35…狭部 36…リップ
38…絶縁膜 40…排管あるいは導管
41…センサ 42、44…圧力変換器
46…電子回路 48…スペーサ用リング
50…押さえ付けリング 52、54…Oリングシール
58、60…ハーフ 62、64…キャビティ
Claims (7)
- 流体流路にインライン接続されるように適合した化学的に不活性な流量計において、
(a)化学的に不活性なハウジングを有し、該ハウジングは、流体の流れ用通路を形成するように前記ハウジングを介して延びる第1の所定の横断面積の縦穴を有し、該通路の入口端と出口端は、流体流路にインライン接続するために適合するものであり、更に、前記ハウジングは、それぞれ前記ハウジングの外部表面から前記ハウジングの縦穴に交差してそれぞれ延びる第1及び第2の離間した個々のキャビティを有し、前記縦穴は、前記第1及び第2のキャビティ間に配置された着脱自在な挿入部材を有し、前記着脱自在な挿入部材は、前記第1の所定の横断面積よりも小さい第2の横断面積を有する第2の穴を有し、
(b)前記第1のキャビティ内に設けられ、流路内の第1の圧力を検知するための第1の検知手段を有し、
(c)前記第2のキャビティ内に設けられ、流路内の第2の圧力を検知するための第2の検知手段を有し、
(d)ハウジングのキャビティ内の位置で前記第1及び第2の検知手段を固定させるための押さえ付け手段を有し、
(e)前記ハウジング内に含まれ、かつ、第1及び第2の検知手段に接続される電子回路を有し、前記電子回路は、穴内の検知された第1及び第2の圧力に比例する信号を受け取る
ことを特徴とする流量計。 - 請求項1記載の流量計において、
更に、それぞれ前記第1及び第2のキャビティ内に含まれる化学的に不活性な可撓性のある膜を前記ハウジングの縦穴に近接して有し、各膜は、第1及び第2の対向する主面を有し、前記第1の主面は、流体流路を流れる流体にさらされていることを特徴とする流量計。 - 請求項1記載の流量計において、
前記着脱自在な挿入部材は、サファイアから製造されることを特徴とする流量計。 - 請求項1記載の流量計において、
前記第1及び第2の検知手段は、それぞれサファイアセンサからなることを特徴とする流量計。 - 請求項1記載の流量計において、
前記ハウジングは、それぞれ縦穴とこれと反対の穴を含む第1及び第2の半ハウジングを有し、前記縦穴とこれと反対の穴は、各半ハウジングの縦穴が整列されて第1及び第2の半ハウジングが並置されたときに、前記着脱自在な挿入部材を受け入れることを特徴とする流量計。 - 請求項1記載の流量計において、
前記ハウジングは、化学的に不活性なポリマーで製造されていることを特徴とする流量計。 - 請求項6記載の流量計において、
前記化学的に不活性なポリマーは、ポリテトラフルオロエチレンからなることを特徴とする流量計。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/601,786 US5672832A (en) | 1996-02-15 | 1996-02-15 | Chemically inert flow meter within caustic fluids having non-contaminating body |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP09529346A Division JP2000510575A (ja) | 1996-02-15 | 1997-01-22 | 非汚染性本体を有する腐食性流体内の流量計 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2006250955A true JP2006250955A (ja) | 2006-09-21 |
Family
ID=24408760
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP09529346A Pending JP2000510575A (ja) | 1996-02-15 | 1997-01-22 | 非汚染性本体を有する腐食性流体内の流量計 |
JP2006174410A Pending JP2006250955A (ja) | 1996-02-15 | 2006-06-23 | 非汚染性本体を有する腐食性流体内の流量計 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP09529346A Pending JP2000510575A (ja) | 1996-02-15 | 1997-01-22 | 非汚染性本体を有する腐食性流体内の流量計 |
Country Status (8)
Country | Link |
---|---|
US (1) | US5672832A (ja) |
EP (1) | EP0880686B1 (ja) |
JP (2) | JP2000510575A (ja) |
KR (1) | KR100287298B1 (ja) |
AT (1) | ATE216070T1 (ja) |
CA (1) | CA2245867C (ja) |
DE (1) | DE69711850T2 (ja) |
WO (1) | WO1997030333A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018186539A1 (ko) * | 2017-04-06 | 2018-10-11 | 인제대학교 산학협력단 | 박막을 이용하여 분리 가능한 구조를 갖는 미세 유체 유속 측정장치 |
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-
1997
- 1997-01-22 CA CA002245867A patent/CA2245867C/en not_active Expired - Fee Related
- 1997-01-22 JP JP09529346A patent/JP2000510575A/ja active Pending
- 1997-01-22 DE DE69711850T patent/DE69711850T2/de not_active Expired - Fee Related
- 1997-01-22 EP EP97904828A patent/EP0880686B1/en not_active Expired - Lifetime
- 1997-01-22 KR KR1019980706338A patent/KR100287298B1/ko not_active IP Right Cessation
- 1997-01-22 WO PCT/US1997/000941 patent/WO1997030333A1/en active IP Right Grant
- 1997-01-22 AT AT97904828T patent/ATE216070T1/de not_active IP Right Cessation
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2006
- 2006-06-23 JP JP2006174410A patent/JP2006250955A/ja active Pending
Cited By (1)
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WO2018186539A1 (ko) * | 2017-04-06 | 2018-10-11 | 인제대학교 산학협력단 | 박막을 이용하여 분리 가능한 구조를 갖는 미세 유체 유속 측정장치 |
Also Published As
Publication number | Publication date |
---|---|
EP0880686B1 (en) | 2002-04-10 |
ATE216070T1 (de) | 2002-04-15 |
EP0880686A4 (en) | 1999-04-21 |
KR100287298B1 (ko) | 2001-04-16 |
KR19990082600A (ko) | 1999-11-25 |
EP0880686A1 (en) | 1998-12-02 |
CA2245867A1 (en) | 1997-08-21 |
CA2245867C (en) | 2001-09-11 |
DE69711850D1 (de) | 2002-05-16 |
JP2000510575A (ja) | 2000-08-15 |
US5672832A (en) | 1997-09-30 |
DE69711850T2 (de) | 2002-09-26 |
WO1997030333A1 (en) | 1997-08-21 |
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