JP2006506608A - 低流量の流量計通過を防止するためのバルブ - Google Patents
低流量の流量計通過を防止するためのバルブ Download PDFInfo
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- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
- G01F15/028—Compensating or correcting for variations in pressure, density or temperature for low flow rates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/01—Damping of valve members
- F16K47/011—Damping of valve members by means of a dashpot
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- G—PHYSICS
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- 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
- G01F1/22—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 by variable-area meters, e.g. rotameters
- G01F1/26—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 by variable-area meters, e.g. rotameters of the valve type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K2200/00—Details of valves
- F16K2200/40—Bleeding means in closed position of the valve, e.g. bleeding passages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Volume Flow (AREA)
- Check Valves (AREA)
Abstract
Description
Claims (41)
- 流体供給管路とこれを通る流体流を計測するための流量計とを含む流体計量システムであって、前記計器は最低測定流しきい値を有し、前記システムは入口ポートと出口ポートとを有するバルブを更に含み、前記バルブは、その最低測定可能流しきい値を超える流量における開位置とその両ポートにわたる圧力差に応じる圧力脈動位置との間で転移可能であり、前記圧力脈動位置は、最低測定流しきい値未満の流量で通る流体流を本質的に防止する閉位置と、最低測定流しきい値を超える測定可能流量で供給管の中に流体流を入れる開位置との間で変る流体計量システム。
- 前記バルブが常閉圧力制御式バルブである請求項1に記載の流体計量システム。
- 前記バルブが前記流量計の前又は後に隣接して嵌合されている請求項1に記載の流体計量システム。
- 前記バルブが前記流量計と一体である請求項1に記載の流体計量システム。
- 前記供給管路とこれに嵌合された装置の各部分が、前記圧力制御式バルブの下流で、流体アキュムレータとして作用する請求項1に記載の流体計量システム。
- 液体供給網である請求項1に記載の流体計量システム。
- 自治体の上水道網である請求項6に記載の流体計量システム。
- 流体流を測定するための計器を含み、最低測定流しきい値を有し、流れ応答バルブを更に含み、前記流れ応答バルブは、最低測定流しきい値を超える流量でのみ流体流を入れる開位置と、最低測定流しきい値未満の流量で流体流を実質的に抑制する閉位置とを有する流体計量システム。
- 流体供給管路とこれを通る流体流を計測するための計器とを含む流体計量システムであって、前記計器は最低測定流しきい値を有し、前記システムは更に、最低測定しきい値未満の流量で流れを実質的に禁じて、測定可能な量の流体の流れだけを再開するように、脈動特性を有する流れパターンをシステムに分与する流れ応答バルブを含む流体計量システム。
- 前記流れ応答バルブが、その入口と出口にわたる圧力差が最低圧力しきい値を超過するといつでも最低測定流しきい値を超える流量で流体流を入れる開位置と、それを通る流体流を実質的に防止する閉位置との間で転移可能である請求項9に記載の流体計量システム。
- 前記バルブが上流方向への流れを防止する一方向バルブである請求項1に記載の流体計量システム。
- 最低測定可能しきい値を有する流量計と流れ応答バルブとを含む流体供給管路を通る流体流を計量するための方法であって、前記流れ応答バルブは、最低測定流しきい値未満の流量で通る流体流を本質的に防止し、測定可能な量の流体のみの流れを再開するように、それを通る流れパターンに脈動特性を分与する方法。
- システムを通る平均流体流が時間を通じて一定のままであり、供給管路を通る平均流体流が時間を通じて一定のままであり、本発明の前記システムによって分与される流量の変動は認識不可能である請求項12に記載の流体流を計量するための方法。
- 前記流れ応答バルブが前記流量計に隣接して嵌合されているか、又は前記流量計と一体として嵌合されている請求項12に記載の流体流を計量するための方法。
- 前記供給管路とこれに嵌合された装置との部分が、前記圧力制御式バルブの下流で流体アキュムレータとして作用する請求項12に記載の流体流を計量するための方法。
- 供給管路の上流側に連結可能な入口ポート及び供給管路の下流側に連結可能な出口ポートと、前記入口ポートと前記出口ポートとの間に延在する制御室と、前記制御室の内部に配置されて、封止表面域を有する入口封止表面と制御表面域を有する制御部分とを有する封止部材と、前記制御室を通る最低流しきい値を決定する流出開口とを含むバルブであって、前記封止部材はこの封止部材にわたる圧力差に応じて開位置と閉位置との間で転置するバルブ。
- 常閉流れ応答バルブであって、前記封止部材が偏位して前記入口ポートと封止係合する請求項16に記載のバルブ。
- 前記封止部材がばねにより偏位して前記入口ポートと封止係合する請求項17に記載のバルブ。
- 前記封止部材が磁気によって偏位して前記入口ポートと封止係合する請求項17に記載のバルブ。
- 前記封止部材が強磁性部材を含み、装置のハウジングに固定磁気偏位部材が嵌合されて、これにより前記封止部材を偏位して前記入口ポートと封止係合させる請求項19に記載のバルブ。
- 前記封止部材が弾性材料によって被覆されている請求項20に記載のバルブ。
- 流体供給管路に脈動流体流れパターンを分与し、封止位置と開位置との間に延在し、前記供給管路を通る平均流体流が時間を通じて一定のままであり、本発明のシステムによって分与される流量の変動は認識不可能である請求項16に記載のバルブ。
- 前記封止表面域が前記制御表面域よりも小さい請求項16に記載のバルブ。
- 前記流出開口が装置のハウジングと前記制御部分との間の隙間である請求項16に記載のバルブ。
- 前記封止部材の下流側において流速を増加し、これによって前記封止部材に作用する封止力とは反対の方向の力を生じさせるように、前記開位置において流れ制限部が形成される請求項17に記載のバルブ。
- 前記表面域が前記バルブの前記ハウジングの円筒状内腔であり、前記内腔は拡張部を伴って形成され、前記封止部材は前記拡張部に対応するテーパー部分を伴って形成され、前記封止部材が開位置に転置したときにヘッド・ロスを生じさせ、その結果バルブの開く力を増加する請求項24に記載のバルブ。
- 一方向バルブであって、上流方向への流れを防止する請求項16に記載のバルブ。
- 最低測定流しきい値を有する流量計を含む流れ計量システム用の流れ応答バルブであって、前記最低測定可能流しきい値を超える流量における開位置とその両ポートにわたる圧力差に応じる圧力脈動位置との間で転移可能であり、前記圧力脈動位置は、最低測定流しきい値未満の流量で通る流体流を本質的に防止する閉位置と、最低測定流しきい値を超える測定可能流量で供給管の中に流体流を入れる開位置との間で変る流れ応答バルブ。
- 最低測定流しきい値を有する流量計を含む流れ計量システム用の流れ応答バルブであって、前記最低測定可能流しきい値を超える流量における開位置と前記バルブの入口ポートと出口ポートとにわたる圧力差に応じる圧力脈動位置との間で転移可能であり、前記圧力脈動位置は、最低測定流しきい値未満の流量で通る流体流を本質的に防止する閉位置と、前記最低測定流しきい値を超える測定可能流量で前記供給管の中に流体流を入れる開位置との間で変り、前記バルブは脈動位置の開いた状態において前記バルブを通る流体流を遅延させるための一時停止機構を更に含む流れ応答バルブ。
- 前記一時停止機構が圧力応答封止組立体を含み、前記圧力応答封止組立体は、軸方向に転置可能なプランジャと静止カップ部材とを含み、これらの間に減衰組立体が受け入れられて前記プランジャの軸方向転置を減衰する請求項29に記載のバルブ。
- 前記減衰組立体が閉じ込められた空間の中に受け入れられ、前記閉じ込められた空間にはこの中へ入る液体流を制限するために封止スリーブが取り付けられている請求項30に記載のバルブ。
- 前記圧力応答封止組立体が更に、ハウジングの内部に保持されて下流方向にのみ変形可能なダイヤフラム・シールを含む請求項30に記載のバルブ。
- 前記プランジャの周辺縁部が尖っており、前記ハウジングの円筒状表面に対抗して転置するようになされており、これによって表面のごみをかき取る請求項30に記載のバルブ。
- 前記プランジャと前記カップ部材との対向縁部が相補対合形状を有する請求項30に記載のバルブ。
- 前記減衰組立体が一端部においては前記カップ部材を、他端部においては前記プランジャを圧迫する偏位ばねである請求項31に記載のバルブ。
- 前記バルブの閉位置においては、前記プランジャは前記カップ部材から引っ込められて前記ダイヤフラム・シールを封止的に圧迫し、液体は前記バルブを通って流れず、入口圧力Piは出口圧力Poに等しい請求項32に記載のバルブ。
- 前記バルブにわたって生じた圧力差によって前記プランジャが下流に引っ張られ、これに続いて前記ダイヤフラム・シールが変形し、これによって前記バルブを閉じる請求項32に記載のバルブ。
- 前記ダイヤフラム・シールが前記プランジャから離れると結果的に前記プランジャは前記カップ部材に向かって更に転置し、これによって脈動様式で且つ測定可能流量で前記バルブを通る液体流を増加する請求項32に記載のバルブ。
- 前記バルブの開位置において前記プランジャは転置して前記カップ部材と係合し、かなりの流量の液体流を容易にする請求項32に記載のバルブ。
- 前記バルブの完全開位置において前記プランジャが前記カップ部材と対合し、卵状の形状を形成する請求項39に記載のバルブ。
- 流体供給管路とこれを通る流体流を計測するための計器とを含む流体計量システムであって、前記計器は流体流れ応答インペラを含み、最低測定流しきい値を有し、前記システムは更に、前記最低測定しきい値未満の流量で流れを実質的に禁じて、測定可能な量の流体の流れだけを再開するように、脈動特性を有する流れパターンを前記システムに分与する流れ応答バルブを含み、前記バルブは更に、脈動位置の開いた状態において前記バルブを通る流体流を遅延させるための一時停止機構を含むシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL15174802A IL151748A0 (en) | 2002-09-12 | 2002-09-12 | Fluid metering method and system |
PCT/IL2003/000727 WO2004025229A1 (en) | 2002-09-12 | 2003-09-04 | Valve for prevention of low flow rates through flow meter |
Publications (2)
Publication Number | Publication Date |
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JP2006506608A true JP2006506608A (ja) | 2006-02-23 |
JP2006506608A5 JP2006506608A5 (ja) | 2006-10-19 |
Family
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JP2004535813A Pending JP2006506608A (ja) | 2002-09-12 | 2003-09-04 | 低流量の流量計通過を防止するためのバルブ |
Country Status (17)
Country | Link |
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US (1) | US7640944B2 (ja) |
EP (1) | EP1546664B1 (ja) |
JP (1) | JP2006506608A (ja) |
KR (1) | KR20050053660A (ja) |
CN (1) | CN100424479C (ja) |
AU (1) | AU2003256054B2 (ja) |
BR (1) | BRPI0314272B1 (ja) |
CA (1) | CA2499604C (ja) |
CY (1) | CY1113615T1 (ja) |
ES (1) | ES2393264T3 (ja) |
IL (2) | IL151748A0 (ja) |
MX (1) | MXPA05002766A (ja) |
PT (1) | PT1546664E (ja) |
RU (1) | RU2005110675A (ja) |
SI (1) | SI1546664T1 (ja) |
WO (1) | WO2004025229A1 (ja) |
ZA (1) | ZA200502160B (ja) |
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Also Published As
Publication number | Publication date |
---|---|
BRPI0314272B1 (pt) | 2016-05-24 |
CA2499604A1 (en) | 2004-03-25 |
IL167383A (en) | 2010-11-30 |
CN100424479C (zh) | 2008-10-08 |
CA2499604C (en) | 2014-02-18 |
CY1113615T1 (el) | 2016-06-22 |
RU2005110675A (ru) | 2005-09-10 |
AU2003256054B2 (en) | 2009-11-19 |
ZA200502160B (en) | 2006-02-22 |
CN1688873A (zh) | 2005-10-26 |
US20050268969A1 (en) | 2005-12-08 |
ES2393264T3 (es) | 2012-12-19 |
AU2003256054A1 (en) | 2004-04-30 |
MXPA05002766A (es) | 2005-11-04 |
WO2004025229A1 (en) | 2004-03-25 |
PT1546664E (pt) | 2012-10-15 |
KR20050053660A (ko) | 2005-06-08 |
EP1546664B1 (en) | 2012-07-11 |
BR0314272A (pt) | 2005-07-26 |
SI1546664T1 (sl) | 2012-12-31 |
US7640944B2 (en) | 2010-01-05 |
IL151748A0 (en) | 2003-04-10 |
EP1546664A1 (en) | 2005-06-29 |
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