公开(公告)号：US20200049152A1

公开(公告)日：2020-02-13

申请号：US16535773

申请日：2019-08-08

Applicant: FLUID HANDLING LLC

Inventor： James J. GU ,  Andrew A. CHENG

IPC: F04D15/00 ,  F04D15/02

Abstract: Apparatus, including a pump system, features a controller having a signal processor or processing module configured to: receive signaling containing information about a relationship between frequencies of pump vibration resonances detected around critical pump speeds and a 3-dimensional pump vibration power spectrum in the frequency domain with respect to pump speed and pump temperature change differences; and determine corresponding signaling containing information to adjust the pump speed to avoid the pump vibration resonances around the critical pump speeds, based upon the signaling received. The signal processor or processing module is also configured to provide the corresponding signaling as control signaling to adjust the pump speed.

公开(公告)号：US20180320684A1

公开(公告)日：2018-11-08

申请号：US15812555

申请日：2017-11-14

Applicant: FLUID HANDLING LLC.

Inventor： Florin ROSCA ,  James J. GU ,  Taifur RAHMAN

IPC: F04B49/20 ,  G05B19/05 ,  F04B49/06 ,  F04B51/00

CPC classification number: F04B49/20 ,  F04B49/065 ,  F04B51/00 ,  F04B2203/0205 ,  F04B2203/0206 ,  F04B2205/09 ,  F04D13/06 ,  F04D15/0066 ,  F04D15/0088 ,  G05B19/05 ,  G05B19/058 ,  G05B2219/14006

Abstract: A pumping system featuring a pump, motor, a bearing assembly, integrated data acquisition system and combined programmable logic controller (PLC), data acquisition and modem. The pump couples to a pump shaft that responds to a pump shaft force to pump a liquid. The motor couples to the pump shaft, responds to VFD/VSD control signaling and provides the pump shaft force to drive the pump shaft. The bearing assembly includes a bearing with the pump shaft arranged therein and couples the pump and the motor. The variable frequency/speed drive (VFD/VSD) receives PLC control signaling and provides the VFD/VSD control signaling to drive the motor. The integrated data acquisition system responds to PLC data acquisition signaling, and provides integrated data acquisition system signaling containing information about an integrated set of pumping system parameters related to the pump, the bearing assembly, the motor and the VFD/VSD in the pump system. The combined programmable logic controller (PLC), data acquisition and modem provides the PLC data acquisition signaling and receive the integrated data acquisition signaling, provides PLC data acquisition modem signaling that exports performance data to the Internet to allow remote manual monitoring of the pump system, and provides the PLC control signaling to control the VFD/VSD and operate the pumping system as a controlled, closed loop system.

公开(公告)号：US20160356276A1

公开(公告)日：2016-12-08

申请号：US15173781

申请日：2016-06-06

Applicant: Fluid Handling LLC.

Inventor： Andrew A. CHENG ,  James J. GU ,  Kyle D. Schoenheit

IPC: F04D15/00 ,  F04D29/22 ,  F04D13/02

Abstract: The present invention provides a numerical affinity pump sensorless conversion signal processing technique, e.g. based upon processing the pump differential pressure, flow rate and power at pump maximum speed published by pump manufacturers, as well as the pump affinity law in order to obtain instant pump differential pressures and flow rate directly and numerically. The sensorless converter technique may be applied to any form of pump characteristics distributions simple or complicated, since there is no need to reconstruct and to solve any pump and system characteristics equations. As a result, the computation accuracy is significantly improved.

Abstract translation: 本发明提供了数字亲和泵无传感器转换信号处理技术，例如， 基于泵制造商公布的泵压差，流量和​​泵浦最大转速下的功率以及泵的亲和力定律，以便直接和数字地获得即时泵压差和流量。 无传感器转换器技术可以应用于任何形式的泵特性分布简单或复杂，因为不需要重构和解决任何泵和系统特性方程。 结果，显着提高了计算精度。

公开(公告)号：US20140288716A1

公开(公告)日：2014-09-25

申请号：US14187817

申请日：2014-02-24

Applicant: Fluid Handling LLC.

Inventor： Andrew A. CHENG ,  Graham A. SCOTT ,  James J. GU

IPC: G05D7/06

CPC classification number: F04D15/0066 ,  F04D15/0088

Abstract: The present invention provides apparatus featuring a signal processor or processing module that may be configured at least to: process signaling containing information about an equilibrium point of pump differential pressure and system pressure formulated in a hydronic domain by utilizing pump and system characteristic curve equations so as to yield system pressure and flow rate at any particular load and time in a pump hydronic system, including using a multi-dimensional sensorless conversion technique; and determine equivalent hydronic system characteristics associated with the pump differential pressure and flow rate to their corresponding motor power and speed reconstructed and remapped by using a discrete numerical approach, based at least partly on the signaling received. The signal processor or processing module may provide corresponding signaling containing information about the system pumping flow rate and pressure determined.

Abstract translation: 本发明提供一种具有信号处理器或处理模块的装置，该信号处理器或处理模块至少可被配置为：通过利用泵和系统特性曲线方程来处理包含关于泵压差平衡点和系统压力信息的信号的信号， 以在泵液压系统中的任何特定负载和时间产生系统压力和流量，包括使用多维无传感器转换技术; 并且至少部分地基于接收到的信令，并且通过使用离散数值方法来确定与泵差压和流速相关联的与其相应的电动机功率和速度重建和重新映射的等效的液压系统特性。 信号处理器或处理模块可以提供相应的信号，其包含关于所确定的系统泵送流量和压力的信息。

公开(公告)号：US20180283733A1

公开(公告)日：2018-10-04

申请号：US15815103

申请日：2017-11-16

Applicant: FLUID HANDLING LLC.

Inventor： Pratik Naresh SHAH ,  Ronan STEPHENS ,  James J. GU

IPC: F24H9/20

Abstract: A switch assembly features an automatic switch and an electronic circuit board. The automatic switch has a common contact and a normally open switch contact to short when a boiler has sufficient water, and has the common contact and a normally closed switch contact to short when the boiler has a low water level. The electronic circuit board has a signal processor, a reset switch, and a low water status LED for providing a status indication of a low water condition that remains ON even if the water level has risen unless the reset switch is reset. The signal processor couples to the common contact, the normally closed switch contact and the normally open switch contact, senses signaling containing the status of the common contact, the normally closed switch contact and the normally open switch contact, provides corresponding signaling to turn ON the low water status LED when the water level is low, and responds to a reset switch signal and turn OFF the low water status LED.

公开(公告)号：US20170314982A1

公开(公告)日：2017-11-02

申请号：US15581437

申请日：2017-04-28

Applicant: Fluid Handling LLC

Inventor： Pratik SHAH ,  Ronan STEPHENS ,  James J. GU

IPC: G01F23/22 ,  G01F23/00 ,  G05B9/02 ,  G08B5/36

CPC classification number: G01F23/22 ,  F24D2220/048 ,  F24H9/2007 ,  G01F23/0061 ,  G05B9/02 ,  G08B5/36

Abstract: A switch assembly includes an automatic type 11 switch having 1 and 2 contacts and 3 and 4 contacts with the 2 and 3 contacts being shorted together, configured to respond to a water level of a boiler, short the 1 and 2 contacts when the water level is high, short the 3 and 4 contacts when the water level is low; and an electronic circuit board having a processor configured to sense signaling containing information about the 1, 2/3 and 4 contacts, and provide control signaling containing information about the water level of the boiler. The electronic circuit board also includes a relay configured to respond to the control signaling, and turn the relay on/off.

公开(公告)号：US20170234527A1

公开(公告)日：2017-08-17

申请号：US15417612

申请日：2017-01-27

Applicant: Fluid Handling LLC

Inventor： Pratik N. SHAH ,  James J. GU

IPC: F22B35/18

Abstract: A technique for determining a boiler water condition includes a boiler controller (aka PSE unit) having a signal processor that implements a boiler control algorithm to receive signaling containing information about sets of N consecutive probe data samples related to a boiler water condition; determine stable average signaling containing information about a stable average by averaging a set of N consecutive probe data samples in the signaling received; determine present stable average signaling containing information about a present stable average by averaging a present set of N consecutive probe data samples in the signaling received; and determine corresponding signaling containing information about the boiler water condition, based upon whether the present stable average is within an allowable limit and a comparison of the present and previous stable average signaling determined.

公开(公告)号：US20150032271A1

公开(公告)日：2015-01-29

申请号：US14339594

申请日：2014-07-24

Applicant: Fluid Handling LLC.

Inventor： Andrew A. CHENG ,  James J. GU ,  Graham A. SCOTT

IPC: F04B49/06 ,  G05D7/06

CPC classification number: F04B49/065 ,  F04D15/0066 ,  G05D7/0676

Abstract: The present invention provides apparatus that features a signal processor or processing module configured to receive signaling containing information about an adaptive or self-calibrating set point control curve and a varying equivalent system characteristic curve based at least partly on an instant pump pressure and a flow rate using an adaptive moving average filter, and equivalent hydronic system characteristics associated with the instant pump pressure and the flow rate to corresponding motor power and speed reconstructed and remapped using a discrete numerical approach; and determine an adaptive pressure set point, based at least partly on the signaling received.

Abstract translation: 本发明提供了一种装置，其特征在于信号处理器或处理模块被配置为接收至少部分地基于瞬时泵压力和流量的信号，其包含关于自适应或自校准设定点控制曲线和变化的等效系统特性曲线的信息 使用自适应移动平均滤波器，以及与即时泵压力相关联的等效的液压系统特性以及相应的电机功率和速度使用离散数值方法重建和重新映射的速度; 并且至少部分地基于所接收的信令来确定自适应压力设定点。