CN101233321B - 具有电子监控的空气阀和活塞的往复泵 - Google Patents

具有电子监控的空气阀和活塞的往复泵 Download PDF

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Publication number
CN101233321B
CN101233321B CN2006800277605A CN200680027760A CN101233321B CN 101233321 B CN101233321 B CN 101233321B CN 2006800277605 A CN2006800277605 A CN 2006800277605A CN 200680027760 A CN200680027760 A CN 200680027760A CN 101233321 B CN101233321 B CN 101233321B
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valve
pump
pneumatic pump
piston
air
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Expired - Fee Related
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CN101233321A (zh
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马克·L·鲍克
马克·T·温伯格
大卫·M·贝伦斯
乌·K·阮
克里斯托弗·M·朗格
韦德·D·帕拉舍夫斯基
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Graco Minnesota Inc
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Graco Minnesota Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/125—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L2003/25—Valve configurations in relation to engine

Abstract

一种气动泵(10)，所述气动泵(10)使用安装在空气马达(18)的阀(16)中的磁体(14)和两个安装在阀盖(22)中的簧片传感器(20)，以监控阀(16)的速度和位置。螺线管(24)安装在阀盖(22)上，并且可控制螺线管以将柱塞(26)延伸至阀(16)中，从而停止阀的运动并由此阻止泵的失控。磁阻传感器(34)设置在空气马达(18)的中部以精确地监控活塞(36)的位置并通过簧片传感器(20)提供泵(10)的精确控制和诊断所必须的输入并使其适于测量和多种构件应用。

Description

具有电子监控的空气阀和活塞的往复泵
技术领域
本申请要求2005年7月28日提交的序列号60/703,306的美国申请和2005年8月1日提交的序列号60/704,290的美国申请的权益。
背景技术
气动式往复活塞泵熟知为用于多种流体的泵送。这种泵典型地具有机械或气动操作的空气阀以控制空气流动至活塞两侧。传统地，通过监控及控制所产生的流体流而不是泵本身，实现对这种泵的控制。例如Graco′s EXTREME-MIXTM比例调节器的现有技术的设备监控活塞的位置以用于控制的目的。
发明内容
因此，本发明的目的是提供一种系统，该系统允许往复空气马达的增强监控和控制，从而允许监控活塞的位置、周期率(cycle rate)和流率(flow rate)、总周期(total cycles)、失控控制以及诊断故障的空气马达和泵下游构件的能力。
这种控制使用安装在空气马达的阀座中的磁体和两个安装在阀盖中的簧片传感器，以监控阀的速度和位置。螺线管安装在阀盖上，并且可控制螺线管以将柱塞延伸至阀座中，从而停止阀运动并由此阻止泵的失控(典型地由没有流体供给引起)。用户界面包括LCD和按钮，以设定及控制泵。可切换显示器以显示周期率、流率(以各种单位)、总周期、以及诊断错误。设定参数可包括流体单位(夸脱、升等)和失控设定点。
簧片开关和磁体设置为检测空气阀何时在各冲程的极限位置和/或在转变过程中。控制器通过计数通过空气阀的变化的位置致动的簧片开关的打开及闭合而计算马达运行的速率。控制器随后将所述速率与预编程的值比较以确定空气马达是否处于失控状态。所述条件存在，控制器致动螺线管，防止停止马达的转换。这样起防止流体溢出和/或对泵造成损坏的作用。
磁阻传感器设置在空气马达的中部以精确地监控活塞的位置。与来自空气阀传感器的数据结合的来自所述传感器的数据提供泵的精确控制和诊断所必须的输入并使其适于测量和多种构件应用。
本发明的这些和其它目的和优点将更完全地从以下结合附图的说明而呈现，其中，在所有视图中，类似的附图标记表示相同或类似的部分。
附图说明
图1示出了作为本发明的一部分的空气阀的横截面，其示出了磁体和簧片开关。
图2示出了图1的作为本发明的一部分的空气阀的横截面的细节。
图3示出了作为本发明的一部分的空气阀的横截面(与图1的横截面相对)，其示出了螺线管。
图4示出了结合本发明的泵的视图。
图5示出了本发明的用户界面的细节。
图6示出了可通过感测空气阀获得的诊断代码。
图7示出了活塞和磁阻传感器。
具体实施方式
气动式往复活塞泵10中，控制器12使用安装在空气马达18的阀16中的磁体14和两个安装在阀盖22中的簧片传感器(簧片开关)20，以监控阀16的速度和位置。螺线管24安装在阀盖22上，并且可控制螺线管以将柱塞26延伸至阀16中，从而停止阀的运动并由此阻止泵10的失控(典型地由没有流体供给，或其它供给管道的软管具有泄露/破裂引起)。用户界面28包括LCD显示器30和按钮32，以设定及控制泵10。可切换显示器30以显示周期率、流率(以各种单位)、总周期、以及诊断错误。设定参数可包括流体单位(夸脱、升等)和失控设定点。
簧片传感器(簧片开关)20和磁体14设置为检测阀16何时在各冲程的极限位置和/或在转变过程中。控制器12通过计数由阀16的变化的位置致动的簧片传感器(簧片开关)20的打开及闭合而计算马达18运行的速率。控制器12随后将所述速率与预编程的值比较以确定空气马达18是否处于失控状态。所述状态存在，控制器12致动螺线管24，防止停止马达18的转换。这样起防止流体溢出和/或对泵造成损坏的作用。
磁阻传感器34设置在空气马达18的中部以精确地监控活塞36的位置。与来自簧片传感器(簧片开关)20的数据结合的来自所述传感器34的数据提供了泵10的精确控制和诊断所必须的输入并使其适于测量和多种构件应用。
可以想到的是，不脱离如以下权利要求限定的本发明的精神和范围的情况下，可以对泵的控制作出多种变化和修改。

Claims (6)

1.一种具有空气阀的气动泵，所述空气阀具有阀座和阀盖，改进包括：
磁体，其安装在所述空气马达的所述阀座中；以及
第一和第二簧片传感器，其安装在所述阀盖中以监控所述阀的速度和位置。
2.如权利要求1所述的气动泵，所述气动泵进一步包括螺线管，所述螺线管具有柱塞并安装在所述阀盖上，所述螺线管能够将所述柱塞延伸至所述阀座中以停止阀运动并由此阻止所述泵的失控。
3.如权利要求1所述的气动泵，所述气动泵进一步包括用户界面，所述用户界面监控所述簧片传感器以允许显示多种参数。
4.如权利要求3所述的气动泵，其中，所述参数可包括周期率、流率、总周期、以及诊断错误。
5.如权利要求1所述的气动泵，其中，所述气动泵包括活塞，并进一步包括用于检测所述活塞的位置的传感器。
6.如权利要求5所述的气动泵，其中，所述传感器包括磁阻传感器。
CN2006800277605A 2005-07-28 2006-07-25 具有电子监控的空气阀和活塞的往复泵 Expired - Fee Related CN101233321B (zh)

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Application Number Priority Date Filing Date Title
US70330605P 2005-07-28 2005-07-28
US60/703,306 2005-07-28
US70429005P 2005-08-01 2005-08-01
US60/704,290 2005-08-01
PCT/US2006/028826 WO2007016081A2 (en) 2005-07-28 2006-07-25 Reciprocating pump with electronically monitored air valve and piston

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CN101233321A CN101233321A (zh) 2008-07-30
CN101233321B true CN101233321B (zh) 2010-06-16

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EP (1) EP1907806B1 (zh)
JP (1) JP5237804B2 (zh)
KR (1) KR101197406B1 (zh)
CN (1) CN101233321B (zh)
AU (1) AU2006275975B2 (zh)
BR (1) BRPI0613878A2 (zh)
ES (1) ES2395776T3 (zh)
PL (1) PL1907806T3 (zh)
RU (1) RU2413096C2 (zh)
TW (1) TWI475157B (zh)
UA (1) UA89254C2 (zh)
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Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9677549B2 (en) 2005-07-28 2017-06-13 Graco Minnesota Inc. Reciprocating pump with electronically monitored air valve and piston
ATE506605T1 (de) * 2005-07-29 2011-05-15 Graco Minnesota Inc Hubkolbenpumpe mit elektronisch überwachtem luftventil mit batterie und magnetelektronischer überwachung
US7603855B2 (en) 2007-04-10 2009-10-20 Illinois Tool Works Inc. Valve with magnetic detents
US7587897B2 (en) 2007-04-10 2009-09-15 Illinois Tool Works Inc. Magnetically sequenced pneumatic motor
US7603854B2 (en) 2007-04-10 2009-10-20 Illinois Tool Works Inc. Pneumatically self-regulating valve
CN103764950B (zh) 2011-09-09 2017-02-15 英格索尔-兰德公司 具有可编程逻辑控制器接口的空气马达及改造空气马达的方法
CN102322416B (zh) * 2011-09-16 2015-02-25 唐山海森电子股份有限公司 精准化灌溉泵首智能控制保护柜
US9169088B2 (en) 2012-09-20 2015-10-27 Nordson Corporation Adhesive dispensing device having optimized cyclonic separator unit
US9304028B2 (en) 2012-09-20 2016-04-05 Nordson Corporation Adhesive dispensing device having optimized reservoir and capacitive level sensor
US10099242B2 (en) 2012-09-20 2018-10-16 Nordson Corporation Adhesive melter having pump mounted into heated housing
US9120115B2 (en) 2012-10-25 2015-09-01 Nordson Corporation Dispensing systems and methods for monitoring actuation signals for diagnostics
US9200741B2 (en) 2012-10-25 2015-12-01 Nordson Corporation Adhesive dispensing system and method using smart melt heater control
US9243626B2 (en) * 2012-11-19 2016-01-26 Nordson Corporation Adhesive dispensing system and method including a pump with integrated diagnostics
US9574714B2 (en) 2013-07-29 2017-02-21 Nordson Corporation Adhesive melter and method having predictive maintenance for exhaust air filter
EP3599377B1 (de) 2018-07-24 2020-11-04 Robatech AG Verfahren zum bestimmen eines mittels einer kolbenpumpe geförderten volumens sowie doppeltwirkende, pneumatisch antreibbare kolbenpumpe zur durchführung des verfahrens
CN112969171B (zh) * 2021-02-26 2023-02-28 徐逸轩 浮空通讯装置，其组网通讯和数据传输方法
CN113790188B (zh) * 2021-09-26 2024-03-12 智涂机器人(深圳)有限公司 一种空气阀以及气动活塞泵

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5174731A (en) * 1989-01-12 1992-12-29 DEPA Gesellschaft fur Verfahrenstecnik mit beschrankter Haftung Method and arrangement for controlling a compressed air-operated double diaphragm pump
CN2323172Y (zh) * 1998-04-07 1999-06-09 中国人民解放军防化指挥工程学院机电研究所 高压泵自动调压装置
US6126403A (en) * 1997-09-18 2000-10-03 Yamada T.S. Co., Ltd. Diaphragm pump

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1187026A (en) * 1966-07-28 1970-04-08 J F Eardley Ltd An Improvement in or relating to Apparatus for Dispensing Liquid.
GB1237701A (en) * 1968-02-02 1971-06-30 Simon Handling Eng Ltd Improvements in or relating to metering pumps of the reciprocating type
JPS5125836B2 (zh) * 1972-04-06 1976-08-03
US3813596A (en) * 1973-03-30 1974-05-28 Rca Corp Magnetic reed sensor suitable for use in ignition timing systems
JPS5125836A (en) * 1974-08-28 1976-03-03 Shin Meiwa Ind Co Ltd Supuurubenniokeru supuurukobakusochi
US4300603A (en) * 1980-04-11 1981-11-17 Laub Iii Herman Antidrip volumetric rapid filling machine usable with very viscous substances
JPS582480U (ja) * 1981-06-30 1983-01-08 日産ディーゼル工業株式会社 三方手動弁
JPS59154456U (ja) * 1983-04-01 1984-10-17 三菱自動車工業株式会社 パイロットチェック弁装置
DE3506180A1 (de) * 1985-02-22 1986-08-28 Festo KG, 7300 Esslingen Kolben-zylinder-anordnung
US4669960A (en) * 1985-02-26 1987-06-02 Lexair, Inc. Fluid pressure sensor
JPS61236903A (ja) * 1985-04-10 1986-10-22 Hitachi Ltd 直動型サ−ボ弁
US4915591A (en) * 1986-01-08 1990-04-10 Saphirwerk Industrieprodukte Ag Reciprocating pump and control using outlet valve position sensors
JPS6338693A (ja) * 1986-07-31 1988-02-19 Nippon Air Brake Co Ltd 鉄道車両用調圧方法
DE3706338A1 (de) * 1987-02-27 1988-09-08 Wagner Gmbh J Membranpumpvorrichtung
US4806915A (en) * 1987-09-03 1989-02-21 Progressive Assembly Machine Co., Inc. Apparatus for indicating position of a piston within a cylinder
SE458749B (sv) * 1988-05-18 1989-05-08 Bengtsson Bengt Goeran Foerfarande och anordning foer reglering av sprutning av belaeggningsmaterial
JPH0283385U (zh) * 1988-12-15 1990-06-27
US4990058A (en) * 1989-11-28 1991-02-05 Haliburton Company Pumping apparatus and pump control apparatus and method
US5272647A (en) * 1991-01-30 1993-12-21 Combustion Engineering, Inc. Valve diagnostic apparatus and method
US5259731A (en) * 1991-04-23 1993-11-09 Dhindsa Jasbir S Multiple reciprocating pump system
US5360445A (en) * 1991-11-06 1994-11-01 International Business Machines Corporation Blood pump actuator
US5271121A (en) * 1992-01-21 1993-12-21 Maverick International, Inc. Pneumatic windshield wiper with sensor controlled motor
JPH0614981U (ja) * 1992-07-24 1994-02-25 日産自動車株式会社 位置検知装置
IT1271744B (it) * 1994-03-15 1997-06-09 Marco Faita Dispositivo elettronico per la visualizzazione a distanza di informazioni
US5497804A (en) * 1994-06-27 1996-03-12 Caterpillar Inc. Integral position sensing apparatus for a hydraulic directional valve
JPH092041A (ja) * 1995-06-20 1997-01-07 Tokico Ltd 車高調整装置
US5826616A (en) * 1996-11-19 1998-10-27 Isi Norgren, Inc. Valve spool position detector apparatus
US6152702A (en) * 1996-12-05 2000-11-28 Caterpillar Inc. Capacitive sensing apparatus for sensing a plurality of operating parameters associated with a variable displacement piston pump
JP2000046504A (ja) * 1998-07-24 2000-02-18 Minolta Co Ltd 位置検出装置
JP2000298030A (ja) * 1999-04-14 2000-10-24 Fujitsu Ten Ltd ナビゲーション装置
JP3635982B2 (ja) * 1999-04-19 2005-04-06 横河電機株式会社 バルブポジショナ及び電空変換器
US6152172A (en) * 1999-07-28 2000-11-28 Husco International, Inc. Hall effect valve spool position sensor
JP2001074129A (ja) * 1999-09-02 2001-03-23 Bridgestone Cycle Co 自動変速装置
JP2001327500A (ja) * 2000-05-19 2001-11-27 Aloka Co Ltd 超音波探触子
DE10036202A1 (de) * 2000-07-24 2002-02-07 Putzmeister Ag Dickstoffpumpe
US6534979B1 (en) * 2000-09-06 2003-03-18 Gary William Wineland Apparatus to attach sensors on equipment with rotating shafts
US6871299B2 (en) * 2001-02-05 2005-03-22 Fisher-Rosemount Systems, Inc. Hierarchical failure management for process control systems
US6931305B2 (en) * 2001-06-08 2005-08-16 Spillguard Technologies, Inc. Apparatus for monitoring and controlling pump and valve system operations
US6607360B2 (en) * 2001-07-17 2003-08-19 Itt Industries Flojet Constant pressure pump controller system
JP3851137B2 (ja) * 2001-10-26 2006-11-29 Ｓｍｃ株式会社 加圧シリンダの高速駆動方法及びその装置
US6678584B2 (en) * 2002-05-03 2004-01-13 Fisher Controls International Llc Method and apparatus for performing diagnostics in a control loop of a control valve
US6739840B2 (en) * 2002-05-22 2004-05-25 Applied Materials Inc Speed control of variable speed pump
JP4003219B2 (ja) * 2002-06-25 2007-11-07 Ｓｍｃ株式会社 位置検出機構を備えたマニホールドバルブ
US6848888B2 (en) * 2002-12-12 2005-02-01 Caterpillar Inc. Sensor for a variable displacement pump
EP1489385B1 (de) * 2003-06-11 2016-07-20 FTE automotive GmbH Vorrichtung zur Sensierung der axialen Stellung eines ersten Bauteils, das relativ zu einem zweiten Bauteil bewegbar ist
DE102006049724A1 (de) * 2006-10-21 2008-04-24 Robert Bosch Gmbh Ventilanordnung mit Positionssensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5174731A (en) * 1989-01-12 1992-12-29 DEPA Gesellschaft fur Verfahrenstecnik mit beschrankter Haftung Method and arrangement for controlling a compressed air-operated double diaphragm pump
US6126403A (en) * 1997-09-18 2000-10-03 Yamada T.S. Co., Ltd. Diaphragm pump
CN2323172Y (zh) * 1998-04-07 1999-06-09 中国人民解放军防化指挥工程学院机电研究所 高压泵自动调压装置

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WO2007016081A9 (en) 2007-04-12
KR20080038136A (ko) 2008-05-02
EP1907806A4 (en) 2009-09-16
TW200726911A (en) 2007-07-16
UA89254C2 (uk) 2010-01-11
BRPI0613878A2 (pt) 2011-02-15
PL1907806T3 (pl) 2013-02-28
RU2008107573A (ru) 2009-09-10
AU2006275975A1 (en) 2007-02-08
EP1907806B1 (en) 2012-10-24
EP1907806A2 (en) 2008-04-09
US20080199323A1 (en) 2008-08-21
KR101197406B1 (ko) 2012-11-05
WO2007016081A3 (en) 2007-05-24
JP5237804B2 (ja) 2013-07-17
JP2009503338A (ja) 2009-01-29
WO2007016081A2 (en) 2007-02-08
CN101233321A (zh) 2008-07-30
RU2413096C2 (ru) 2011-02-27
TWI475157B (zh) 2015-03-01
AU2006275975B2 (en) 2011-08-25

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