CN101943151A - 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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CN101943151A
CN101943151A CN2010101934104A CN201010193410A CN101943151A CN 101943151 A CN101943151 A CN 101943151A CN 2010101934104 A CN2010101934104 A CN 2010101934104A CN 201010193410 A CN201010193410 A CN 201010193410A CN 101943151 A CN101943151 A CN 101943151A
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pneumatic pump
valve
pump
piston
air
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CN101943151B (zh
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马克·L·鲍克
马克·T·温伯格
乌·K·阮
克里斯托弗·M·朗格
韦德·D·帕拉舍夫斯基
大卫·M·贝伦斯
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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
    • 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
    • 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
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • 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
    • F04B49/10—Other safety measures
    • 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
    • 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
    • F04B9/1256—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 with fluid-actuated inlet or outlet valve

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

具有电子监控的空气阀和活塞的往复泵。本发明提供一种气动泵(10)，所述气动泵(10)使用安装在空气马达(18)的阀座(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)延伸至阀座(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)的位置并通过空气阀传感器(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。
本发明的控制器能够利用来自线性换能器(transducer)的信息来反馈给空气压力(或者如果液压的话，则是流体压力)，以通过轴位移和速度来控制流量和流率。所述反馈可以用在具有一种流体的简单的计量分配系统中或用在两种(或多种)组分的系统中，其中反馈用来保持流动，压力和比率。
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。
图8示出了本发明的控制器。
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的阀座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延伸至阀座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。
簧片开关20和磁体14设置为检测空气阀16何时在各冲程的极限位置和/或在转变过程中。控制器12通过计数由空气阀16的变化的位置致动的簧片开关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。与来自空气阀传感器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。
图8所示的本发明的控制器12可以利用来自线性换能器的信息来反馈给空气压力(或者如果液压的话，则是流体压力)，以通过轴位移和速度来控制流量和流率。这可以通过空气压力调节器40进行，该调节器40调节加压空气(或液压流体)的供应源42。所述反馈可以用在具有一种流体的简单的计量分配系统中或用在两种(或多种)组分的系统中，其中反馈用来保持流动，压力和比率。
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 (9)

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。
7.如权利要求1所述的气动泵，还包括控制器，并且其中所述控制器利用来自所述线性换能器的信息来反馈给输入到所述气动泵的空气压力。
8.如权利要求7所述的气动泵，其中所述控制器通过控制轴位移和速度来控制泵流量。
9.如权利要求7所述的气动泵，其中所述控制器通过控制轴位移和速度来控制流率。
CN201010193410.4A 2009-07-06 2010-05-27 具有电子监控的空气阀和活塞的往复泵 Expired - Fee Related CN101943151B (zh)

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US12/498,074 US9677549B2 (en) 2005-07-28 2009-07-06 Reciprocating pump with electronically monitored air valve and piston

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EP (1) EP2273114B1 (zh)
JP (1) JP5748423B2 (zh)
KR (1) KR20110004310A (zh)
CN (1) CN101943151B (zh)
AU (1) AU2010202832B2 (zh)
ES (1) ES2505117T3 (zh)
MX (1) MX2010007441A (zh)
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US20110002793A1 (en) 2011-01-06
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PL2273114T3 (pl) 2015-02-27
AU2010202832A1 (en) 2011-01-20
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ES2505117T3 (es) 2014-10-09
US20150300335A1 (en) 2015-10-22
TW201111632A (en) 2011-04-01
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