公开(公告)号：US4569220A

公开(公告)日：1986-02-11

申请号：US641452

申请日：1984-08-16

Applicant: Helmut W. Hopfe ,  Hershel Roberson

Inventor： Helmut W. Hopfe ,  Hershel Roberson

IPC: G01F25/00

CPC classification number: G01F25/0015

Abstract: A flow prover with seal monitor includes a housing with a cylinder and a piston-like displacer sealingly conveyed along the cylinder by the fluid flow to be measured. The displacer includes at least one rod that extends telescopically through the housing. A pair of conduits may be arranged concentrically within the rod, one in communication with a volume between a pair of seals whose integrity is to be monitored and the other in communication with the fluid in the housing. The conduits each communicate as well with a pressure sensor located outside of the housing. The sensor may be mounted on the rod to sense the absence of a pressure differential between the conduits, which indicates a seal failure. The sensor may provide an indication, which may be detected at the end of a proving cycle, that the seal integrity was maintained throughout the proving cycle.

Abstract translation: 具有密封监视器的流量检测器包括具有气缸和活塞式置换器的壳体，其通过被测量的流体沿着气缸密封地传送。 置换器包括至少一个可伸缩地延伸穿过壳体的杆。 一对管道可以同心地布置在杆内，一个管道与一对密封件之间的容积连通，其一体性被监控，另一个与壳体中的流体连通。 导管也通过位于壳体外部的压力传感器进行通信。 传感器可以安装在杆上以感测导管之间不存在压力差，这表示密封失效。 传感器可以提供在证明循环结束时可以检测到的指示，即在整个证明循环中保持密封完整性。

公开(公告)号：US4549426A

公开(公告)日：1985-10-29

申请号：US641029

申请日：1984-08-15

Applicant: Charles D. Erickson

Inventor： Charles D. Erickson

IPC: G01F25/00

CPC classification number: G01F25/0015

Abstract: A compact flow prover for calibrating continuous flowmeters includes a measuring housing comprising a main cylinder having a substantially uniform inside diameter and inlet and downstream sections having inside diameters greater than the main cylinder. The compact flow prover is provided with a displacer movably disposed within the housing having seals which form a fluid barrier while the displacer is disposed within the main cylinder. Inlet and downstream section guide means are provided to maintain the displacer in axial alignment with the main cylinder while the displacer is disposed within either of these sections, assuring smooth exit and entry. The displacer is provided with seals which are circumferentially compressed when the displacer enters the main cylinder and may be statically or dynamically monitored for integrity without an external pressure source. Means for returning the displacer from the downstream section to the inlet section following a proving cycle and means for detecting the longitudinal disposition of the displacer during a proving cycle are provided. The flow prover also includes an inlet conduit, an outlet conduit, and a valved bypass conduit fluidly connecting the inlet and outlet conduits. The displacer may be positioned within the cylinder by a member extending from the displacer into an external enclosure. The fluid pressure within the enclosure may be regulated to control the position of the displacer and to equalize unbalanced forces across the displacer.

Abstract translation: 用于校准连续流量计的紧凑型流量检测器包括测量壳体，该测量壳体包括具有基本上均匀的内径的主气缸和具有大于主气缸的内径的入口和下游部分。 紧凑型流动证明器设置有可移动地设置在壳体内的置换器，其具有形成流体屏障的密封件，同时置换器设置在主缸体内。 提供入口和下游部分引导装置，以保持置换器与主液压缸轴向对准，同时置换器设置在这些部分中的任何一个中，确保平稳的出口和进入。 置换器设置有当置换器进入主缸时周向压缩的密封件，并且可以在没有外部压力源的情况下静态地或动态地监测完整性。 提供了用于在校验循环之后将置换器从下游部分返回到入口部分的装置以及用于在检验循环期间检测置换器的纵向布置的装置。 流动证明器还包括入口管道，出口管道和流体连接入口管道和出口管道的阀旁路管道。 置换器可以通过从置换器延伸到外部外壳中的构件定位在圆筒内。 可以调节外壳内的流体压力以控制置换器的位置并且平衡跨越置换器的不平衡力。

公开(公告)号：US4379991A

公开(公告)日：1983-04-12

申请号：US135191

申请日：1980-03-28

Applicant: William W. Ho ,  William F. Hall

Inventor： William W. Ho ,  William F. Hall

IPC: G01F15/02 ,  G01F17/00 ,  G01F25/00 ,  G01R27/04

CPC classification number: G01F25/0053 ,  G01F25/0015

Abstract: Apparatus and method are disclosed for measuring the volume of a chamber of a meter prover. The meter prover includes a piston adapted for rectilinear movement within said cylinder between a first position and a second position. The volume measuring apparatus comprises an antenna disposed within the chamber and a generator coupled to apply electromagnetic energy to the antenna whereby electromagnetic waves are emanated into the chamber. A detector is coupled to the antenna to detect electromagnetic energy reflected from the chamber and is in turn coupled to a resonant detector in the form of a cathode ray tube, whereby a minimum of the level of the electromagnetic energy may be determined. Further, a frequency detector in the form of a counter, is connected to the output of the generator to detect the frequencies of the generator output at which the minimum level occurs as observed upon a display device corresponding to the establishment of a resonant standing wave within the chamber of the meter prover. The frequency(ies) at which the resonant standing waves are established within the chamber, in turn determine the volume of the meter prover chamber. The electromagnetic field(s) are generated within the chamber of a mode selected so that at a resonant condition within the chamber, the electric and magnetic component fields of the electromagnetic field have a defined relation to the dimensions of the chamber of regular geometry, illustratively, a right circular cylinder.

Abstract translation: 公开了用于测量仪表识别器的室的体积的装置和方法。 计量器证明器包括适于在第一位置和第二位置之间在所述气缸内直线运动的活塞。 体积测量装置包括设置在腔室内的天线和连接到天线上的发生器，由此电磁波发射到腔室中。 检测器耦合到天线以检测从腔室反射的电磁能量，并且又以阴极射线管的形式耦合到谐振检测器，由此可以确定电磁能量的最小值。 此外，以计数器形式的频率检测器连接到发生器的输出端，以检测发生器输出的频率，其中发生最小电平的频率是在对应于建立共振驻波的显示装置上观察到的 仪表证明室。 谐振驻波在室内建立的频率又决定了仪表证明室的体积。 在所选择的模式的室内产生电磁场，使得在室内的共振条件下，电磁场的电和磁分量场与规则几何的室的尺寸具有限定的关系，示例性地 ，右圆柱体。

公开(公告)号：US4328697A

公开(公告)日：1982-05-11

申请号：US129990

申请日：1980-03-13

Applicant: Brian W. Tumber ,  Michael J. Davison

Inventor： Brian W. Tumber ,  Michael J. Davison

IPC: F02M37/00 ,  F02D41/40 ,  F02M65/00 ,  G01D18/00 ,  G01F25/00

CPC classification number: F02D41/40 ,  G01D18/006 ,  G01F25/0015 ,  Y02T10/44

Abstract: The output of a transducer is passed to an electrical circuit for supply to a fuel control network. In order to check the output of the transducer the output of the electrical circuit is sampled in a sample circuit when the movement of the member associated with the transducer is a known value. The signal from the sample circuit is compared in a comparator with a reference signal. Any difference is passed to a gain determining circuit which calculates a new gain value for a variable gain amplifier in the electrical circuit. The value of the gain is retained in a holding circuit and supplied to the amplifier until further adjustment is required.

Abstract translation: 传感器的输出被传递到电路以供应到燃料控制网络。 为了检查传感器的输出，当与换能器相关联的构件的移动是已知值时，电路的输出在采样电路中被采样。 来自采样电路的信号在比较器中与参考信号进行比较。 任何差异被传递给增益确定电路，其计算电路中的可变增益放大器的新增益值。 增益值保持在保持电路中并提供给放大器，直到需要进一步调整。

公开(公告)号：US4307601A

公开(公告)日：1981-12-29

申请号：US93155

申请日：1979-11-13

Applicant: George R. Jackson

Inventor： George R. Jackson

IPC: G01F3/04 ,  G01F25/00 ,  G01F3/02

CPC classification number: G01F25/0015 ,  G01F3/04

Abstract: Measuring apparatus for calibrating flow meters and the like comprising a piston slidably mounted within piston cylinder means which receives gas passing through the flow meter being calibrated to cause the piston to be lifted. A precision encoder is rotated responsive to the movement of tape means aligned with the central axis of the piston and entrained about a pulley driving said encoder means. The tape is also connected to counterbalancing weight means for enhancing the sensitivity and accuracy of the measuring apparatus. The system electronics initiate operation of timer means upon the first pulse generated by the encoder means after operation of a start button and terminates the operation of the timer means upon the first encoder pulse generated after operation of stop button.Temperature and pressure in the piston cylinder are constantly monitored. These readings are employed at the time flow rate calculations are performed to correct the flow rate calculated to standard temperature and pressure.A release valve and/or limit switch means is provided to protect both the equipment and operators from damage or injury due to malfunctions, the release valve being adapted to open when the pressure within the container builds to a predetermined level and the limit switch being adapted to shut down the apparatus when the piston moves beyond a predetermined limit position.An arrangement for collecting the mercury employed in the sliding liquid seal is designed to prevent intermixing of the gas and the mercury.

Abstract translation: 用于校准流量计等的测量装置包括可滑动地安装在活塞气缸装置内的活塞，该活塞接收通过流量计的气体被校准以使活塞被提升。 精密编码器响应于与活塞的中心轴对准的带装置的运动而旋转，并且夹带在驱动所述编码器装置的皮带轮上。 磁带还连接到平衡重量装置，用于提高测量装置的灵敏度和精度。 系统电子装置在启动按钮操作之后由编码器装置产生的第一脉冲启动定时装置的操作，并且在停止按钮操作之后产生的第一编码器脉冲终止定时装置的操作。 不断监测活塞缸中的温度和压力。 在进行流量计算时，采用这些读数，以校正计算到标准温度和压力的流量。 提供释放阀和/或限位开关装置以保护设备和操作者免受故障造成的损坏或伤害，释放阀适于在容器内的压力建立至预定水平时打开，并且限位开关适应 当活塞移动超过预定极限位置时关闭装置。 用于收集滑动液体密封件中使用的汞的装置被设计成防止气体和汞的混合。

公开(公告)号：US4134288A

公开(公告)日：1979-01-16

申请号：US842299

申请日：1977-10-14

Applicant: Kee W. Kim

Inventor： Kee W. Kim

IPC: G01F25/00

CPC classification number: G01F25/0015

Abstract: Apparatus comprising an interchange which receives a sphere from a meter prover loop after a meter prover run and which launches the sphere into the loop to commence a run. An assembly within the body of the interchange is movable between sphere receiving and sphere launching positions. When in sphere launching position it provides a seal which prevents flow through the interchange. Means is incorporated which prevents hydraulic shock when the assembly is moved from sphere receiving to sphere launching position. Also the apparatus has improved means for detecting leakage.

Abstract translation: 一种装置，包括一个交换装置，该交换机在一个计量器证明器运行之后接收来自一个计量器循环的一个球体，并且将该球体发射到该循环中以开始运行。 互换体内的组件可在球体接收和球体发射位置之间移动。 当在球体发射位置时，它提供了防止流经交换器的密封。 装配的装置防止当组件从球体接收移动到球体发射位置时的液压冲击。 该装置还具有用于检测泄漏的改进装置。

公开(公告)号：US3998089A

公开(公告)日：1976-12-21

申请号：US630549

申请日：1975-11-10

Applicant: Marvin H. Grove ,  Ronald G. Dunegan

Inventor： Marvin H. Grove ,  Ronald G. Dunegan

IPC: G01F25/00

CPC classification number: G01F25/0015

Abstract: Undirectional meter prover apparatus for checking and calibrating liquid flow meters. An interchange for transferring a sphere from the outlet to the inlet end of a metering pipe is provided with a shuttle assembly having backflow preventing means which seals the interchange body against backflow for certain operating conditions, particularly when the shuttle assembly is at or near sphere receiving position. Preferably guide means is provided which is engaged by the backflow preventing means.

Abstract translation: 用于检查和校准液体流量计的单向计量器设备。 用于将球从出口传送到计量管的入口端的交换器设置有具有防回流装置的梭组件，其具有密封交换体以抵抗某些操作条件的逆流，特别是当梭组件处于或接近球体接收时 位置。 优选地，引导装置被防回流装置接合。

公开(公告)号：US3955796A

公开(公告)日：1976-05-11

申请号：US549181

申请日：1975-02-12

Applicant: Marvin H. Grove

Inventor： Marvin H. Grove

IPC: F16K3/24 ,  G01F25/00

CPC classification number: F16K3/243 ,  G01F25/0015 ,  Y10T137/86879

Abstract: Flow control apparatus comprising a hollow body having openings or flow passages adapted to be connected to associated piping and a cylindrical closure which is reciprocated to form a seal or permit fluid flow. The sealing means consists of an annular assembly carried between two sections of the body having oppositely faced sealing members of resilient material.

Abstract translation: 流量控制装置包括具有适于连接到相关管道的开口或流动通道的空心体，以及圆柱形闭合件，其往复运动以形成密封件或允许流体流动。 密封装置由承载在本体的两个部分之间的环形组件组成，具有相对面的弹性材料的密封构件。

公开(公告)号：US3860833A

公开(公告)日：1975-01-14

申请号：US43525974

申请日：1974-01-21

Applicant: ITT

Inventor： TYAU WALTER FAH MIN

IPC: G01F25/00 ,  H03K3/013 ,  H03K17/00

CPC classification number: G01F25/0015 ,  H03K3/013

Abstract: A pulse discriminator for test apparatus called a ball prover including a ball rollable in a pipeline past two axially spaced, spring biased, normally open, momentary contact switches which, when closed, discharge a capacitor, the capacitor having a charging rate lower than its discharging rate to discriminate against pulses which would normally be produced by the bouncing of one or more of the switch contacts. Pulse discrimination may also be achieved through the use of a regenerative amplifier that has hysteresis. Contact bounce would otherwise cause an erroneous total flow reading. A gate control circuit responsive to the voltage across the capacitor operates a gate to pass flowmeter pulses which are counted and indicated. The total of the pulses counted then are directly proportional to the total flow in the pipeline between the times that the switches are closed.

Abstract translation: 一种用于测试设备的脉冲鉴别器，称为球形探测器，其包括可在管道中滚动的球体，其经过两个轴向间隔开的弹簧偏压，常开瞬时接触开关，当闭合时，释放电容器，电容器的充电速率低于其放电 以区分通常由一个或多个开关触点的弹跳产生的脉冲。 也可以通过使用具有迟滞的再生放大器来实现脉冲鉴别。 接触反弹会导致错误的总流量读数。 响应于电容器两端的电压的门控制电路操作门，以通过计数和指示的流量计脉冲。 计数的脉冲总数与开关闭合时间之间的管道总流量成正比。

公开(公告)号：US3800587A

公开(公告)日：1974-04-02

申请号：US3800587D

申请日：1972-09-29

Applicant: SIGNET CONTROLS INC

Inventor： CLINTON W

IPC: G01F25/00

CPC classification number: G01F25/0015

Abstract: This invention describes improvements in the conventional three sphere type meter prover systems. The improvements lie first in the use of a piston to force the prover spheres through the squeeze tube of the interchange and the provision of means attached to the piston rod to support the spheres when the piston rod is extended, and to prevent the spheres from accidentally dropping in back of the push plate. A second improvement is in the use of indicator means to indicate the position of the piston rod and the push plate which is used to force the spheres through the squeeze tube of the interchange.

Abstract translation: 本发明描述了传统的三球型计量证明器系统的改进。 这些改进首先在于使用活塞来强制证明球通过交换器的挤压管，并且提供附接到活塞杆以在活塞杆延伸时支撑球体的装置，并且防止球体被意外地 落在推板的后面。 第二个改进在于使用指示器装置来指示活塞杆和推板的位置，该活塞杆和推板用于迫使球体穿过交换器的挤压管。