A heat transfer system that includes one or more heat exchangers and one or more variable control pumps that control flow through the one or more heat exchangers. At least one variable control pump is on the source side of the heat exchanger for controlling flow of a first circulation medium and at least one flow controlling mechanical device is on the load side of the heat exchanger for controlling flow of a second circulation medium. Sensors are used for detecting variables of the first circulation medium and the second circulation medium. At least one controller is configured to control at least one parameter of the first circulation medium or the second circulation medium by controlling at least one of the variable control pump or the flow controlling mechanical device using a feed forward control loop calculated from the detected variables to achieve control of the at least one parameter.
A heat transfer system that includes one or more heat exchangers and one or more control pumps that control flow through the heat exchangers. In order to source a variable load, the control pumps can be controlled to operate at less than full duty flow. In an example embodiment, a controller can calculate, when each heat exchanger is clean, coefficient values of each respective heat exchanger. The controller can determine, during real-time operation, real-time coefficient values of the heat exchanger to compare with the respective coefficient values when clean, in order to determine whether there is fouling in that heat exchanger. In some examples, the controller can determine that maintenance is required on the heat exchanger due to the fouling, and perform flushing of the heat exchanger by operating one or more of the control pumps at full duty load during real-time operation to source the variable load.
F28G 9/00 - Nettoyage par lessivage ou par lavage, p.ex. avec des solvants chimiques
F28F 27/00 - Commandes ou dispositifs de sécurité spécialement adaptés pour les appareils d'échange ou de transfert de chaleur
F28G 15/00 - NETTOYAGE DES SURFACES INTERNES OU EXTERNES DES CONDUITS DES ÉCHANGEURS DE CHALEUR OU DE TRANSFERT DE CHALEUR, p.ex. TUBES D'EAU DE CHAUDIÈRES - Parties constitutives
3.
DUAL BODY VARIABLE DUTY PERFORMANCE OPTIMIZING PUMP UNIT
A dual pump unit having a pair of pumps that provide parallel hydraulic paths, and are configured to operate concurrently in opposite rotational directions. The dual pump unit has a sealed casing which includes a suction flange, two volutes in hydraulically parallel configuration, and a discharge flange. The pair of pumps are located within a respective volute of the casing and, in an example, are radially inline and horizontally inline. The casing may include a flattened bottom. Each pump may include a touchscreen for configuration of the respective pump. The pumps are controllable to circulate a circulating medium to collectively provide output to source a load.
Performance mapping of equipment performance parameters by capturing, mapping, and/or structuralizing equipment performance data of a device for installation in a system. This includes generating performance maps which outline the expected feature performance parameter behavior of the equipment based on a set of operating parameters that capture the operating conditions. Each performance parameter on the map is representative of an operating point of specific operating conditions taken at a particular point in time. In one example, a performance parameter can be defined by an individualized set of parameter coefficients which in turn are dependent on instantaneous operating conditions. With the performance maps determined individually for devices as part of the system, and stored along with a time of testing, activities such as continuous commissioning, monitoring and verification, preventative maintenance, fault detection and diagnostics, as well as energy performance benchmarking and long term monitoring can be performed.
A self-regulating fire pump unit which can be controlled to operate under required conditions for sourcing a fire protection system such as sprinklers. The fire pump unit can be operated in accordance with a control curve based on detected pressure and flow. The control curve can include: a) a first setpoint of rated total value of the system load for the pressure and the flow, b) a second setpoint of a minimum partial percentage of the rated total value of the pressure at an over-percentage of the rated total value of the flow, c) a path which maintains the rated total value of the pressure for all values of the flow up to the first setpoint, d) a path between the first setpoint and the second setpoint, e) a path from the second setpoint which limits values of the pressure for values of the flow greater than the second setpoint.
G05D 13/62 - Commande de la vitesse linéaire; Commande de la vitesse angulaire; Commande de l'accélération ou de la décélération, p.ex. d'une machine motrice caractérisée par l'utilisation de moyens électriques, p.ex. l'emploi de dynamos-tachymétriques, l'emploi de transducteurs convertissant des valeurs électriques en un déplacement
A62C 37/00 - Commande des installations de lutte contre l'incendie
F04D 15/00 - Commande, p.ex.régulation de pompes, d'installations ou de systèmes de pompage
An integrated unit for use in a pump station. The integrated unit comprises a connector for connection to a power supply, a motor arranged to provide mechanical drive to an output shaft for coupling to a pumping unit associated with the pump station, a motor controller arranged to supply the motor with power from the connector to thereby control the motor, and an interface for a pump station system controller arranged to interface with the motor controller to match the mechanical drive supplied to the output shaft by the motor to demand. The integrated unit station comprises a housing with an exterior wall portion that is removable, and to which comprises a cooling system for an electronic component. An automatically engaging coupling is arranged to automatically disconnect the electrical connection to the electronic component on removal of the exterior wall portion.
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
An integrated unit for use in a pump station. The integrated unit comprises a connector for connection to a power supply, a motor arranged to provide mechanical drive to an output shaft for coupling to a pumping unit associated with the pump station, a motor controller arranged to supply the motor with power from the connector to thereby control the motor, and an interface for a pump station system controller arranged to interface with the motor controller to match the mechanical drive supplied to the output shaft by the motor to demand. The integrated unit station comprises a housing with an exterior wall portion that is removable, and to which comprises a cooling system for an electronic component. An automatically engaging coupling is arranged to automatically disconnect the electrical connection to the electronic component on removal of the exterior wall portion.
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
An integrated unit for use in a pump station. The integrated unit comprises a connector for connection to a power supply, a motor arranged to provide mechanical drive to an output shaft for coupling to a pumping unit associated with the pump station, a motor controller arranged to supply the motor with power from the connector to thereby control the motor, and an interface for a pump station system controller arranged to interface with the motor controller to match the mechanical drive supplied to the output shaft by the motor to demand. The integrated unit station comprises a housing with an exterior wall portion that is removable, and to which comprises a cooling system for an electronic component. An automatically engaging coupling is arranged to automatically disconnect the electrical connection to the electronic component on removal of the exterior wall portion.
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
A method and system for co-ordinating control of a plurality of sensorless devices. Each device includes a communication subsystem and configured to self-detect one or more device properties, the device properties resulting in output having one or more output properties. The method includes: detecting inputs including the one or more device properties of each device, correlating, for each device, the detected one or more device properties to the one or more output properties, and co- ordinating control of each of the devices to operate at least one of their respective device properties to co-ordinate one or more output properties for the combined output to achieve a setpoint. In some example embodiments, the setpoint can be fixed, calculated or externally determined.
A control system for an operable system such as a flow control system or temperature control system. The system operates in a control loop to regularly update a model with respect at least one optimizable input variable based on the detected variables. The model provides prediction of use of the input variables in all possible operation points or paths of the system variables which achieve an output setpoint. In some example embodiments, the control loop is performed during initial setup and subsequent operation of the one or more operable elements in the operable system. The control system is self-learning in that at least some of the initial and subsequent parameters of the system are determined automatically during runtime.
A method, computer system, and computer readable medium for defining boundaries of a selection range for a variable speed device, the variable speed device being dependent on at least a first parameter and a second parameter, the first parameter and the second parameter being correlated. The method includes: determining a first boundary of the selection range defined by a reference to an efficiency curve of the variable speed device, determining a second boundary of the selection range based on a percentage of the efficiency curve, adjusting the first boundary or the second boundary based on a cost dependent on at least an operating cost of the variable speed device operating at part loads for a specified period of time, and displaying on a graphical interface screen a graph of the first parameter versus the second parameter, the graph having displayed thereon a region representing the selection range.
A method, computer system, and computer readable medium for facilitating selection from a plurality of devices, each device defined by a selection range dependent on at least a first parameter and a second parameter, the first parameter and the second parameter being correlated. The method includes: displaying on a graphical interface screen a graph of the first parameter versus the second parameter, the graph having displayed thereon a plurality of regions representing the selection ranges, receiving selection of at least a point of the graph from an indicator overlaid onto the graph and which is moveable on the graphical interface screen based on control from an input device, and in response to the selection, displaying on the graph only the regions which are relevant to the selected point.
A method, computer system, and computer readable medium for prioritizing a plurality of variable speed devices. The method includes: determining, for a first variable speed device, a cost dependent on an operating cost of the first variable speed device operating at part loads for a specified period of time, determining, for a second variable speed device, a second cost dependent on an operating cost of the second variable speed device operating at part loads for the specified period of time, and displaying on a graphical interface screen a listing of the first variable speed device and the second variable speed device in a priority order based on the cost and the second cost.
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projets; Planification d’entreprise ou d’organisation; Modélisation d’entreprise ou d’organisation
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