436results about "Pump parameter" patented technology

To suppress hydrogen concentration in surrounding atmosphere to a determined reference value or less by detecting a change in the hydrogen concentration if liquefied hydrogen leaks.SOLUTION: A liquefied hydrogen pump system includes a liquefied hydrogen pump and a control device, and the liquefied hydrogen pump includes a cylinder, a piston, a rod, a drive part, and a seal part. The seal part includes a first seal member, a second seal member provided with an interval in the direction of separating from the piston an axial direction with respect to the first seal member, a flow passage part, one end of which communicates with a gap between the rod and the cylinder and the other end of which opens to the outside of the cylinder, and an information acquisition part for acquiring information on hydrogen concentration in a fluid flowing to the outside of the cylinder through the flow passage part. The control device stops the operation of the liquefied hydrogen pump in the case of determining that hydrogen concentration in the fluid exceeds a preset reference value on the basis of information on the acquired hydrogen concentration.SELECTED DRAWING: Figure 2

A pumping system, comprising: a pump fluid end comprising a plurality of pump chambers, each pump chamber comprising a bore having a reciprocatable plunger disposed therein, a suction valve, and a discharge valve; a prime mover mechanically coupled to the fluid end [by a drivetrain] and configured to reciprocate the plungers; and a controller communicatively coupled to the prime mover, the fluid end, or both and configured to alert a user re a pump malfunction, initiate corrective action of the pump malfunction, or both in response to: (a) an indication of torque reversal during operation of the pumping system, (b) an indication of negative flow rate from the pump during operation of the pumping system, (c) an indication of leakage of (i) a single discharge valve in a 3-plunger pump or (ii) discharge valves associated with two plungers in adjacent firing order, or (d) any combination of (a)-(c).

What is suggested is a micromembrane pumping device for pumping a fluid, having: a pump chamber to which an inlet valve, an outlet valve, and a membrane device for varying a volume of the pump chamber are associated, wherein the membrane device has a plate-shaped actuator for deforming the membrane device; and influencing means for influencing the plate-shaped actuator and the volume of the pump chamber; wherein the membrane device has a plate-shaped membrane body limiting the pump chamber; wherein the plate-shaped actuator is arranged on a side of the plate-shaped membrane body facing away from the pump chamber; wherein the plate-shaped actuator is mounted to and electrically insulated from the plate-shaped membrane body by an electrically insulating glue layer; wherein at least one embedded portion of a support body at or in which a deformation sensor for detecting a deformation of the membrane device is arranged, is arranged within the glue layer to detect the volume of the pump chamber; wherein the influencing means, the plate-shaped actuator and the deformation sensor form a closed-loop control circuit for regulating a volume flow.

A pump can include a pump head, a body housing, a motor disposed within the body housing, and a motor shaft extending from the motor. The pump head can include a sensor, at least a first interface portion, and at least a first elongate conductor electrically connecting the sensor to the at least a first interface portion. The body housing can include at least a second interface portion and at least a second elongate conductor electrically connecting the at least a second interface portion to pump electronics. The sensor can be configured to sense when the at least a first interface portion does not contact the at least a second interface portion. When the at least a first interface portion does not contact the at least a second interface portion and the pump head is removed from the body housing, the pump head can be pivotable relative the motor shaft such that an orientation of the pump head can be changed with respect to the body housing.

A system and method for operating a fleet of pumps for a turbine driven fracturing pump system used in hydraulic fracturing is disclosed. A method of operating a fleet of pumps associated with a hydraulic fracturing system includes receiving a demand Hydraulic Horse Power (HHP) signal. The demand HHP signal may include the Horse Power (HP) required for the hydraulic fracturing system to operate and may include consideration for frictional and other losses. The method further includes operating all available pump units at a percentage of rating below Maximum Continuous Power (MCP) level, based on the demand HHP signal. Furthermore, the method may include receiving a signal for loss of power from one or more pump units. The method further includes operating one or more units at MCP level and operating one or more units at Maximum Intermittent Power (MIP) level to meet the demand HHP signal.

Control circuitry outputs a pump command current corresponding to an actuator operation signal to pump equipment including at least one pump whose displacement increases in accordance with increase in the pump command current. The control circuitry: stores calibration data generated based on actual measurement data of the at least one pump, the actual measurement data indicating an actual relationship between the pump command current and the displacement of the at least one pump, the calibration data being data to correct the pump command current such that the displacement of the at least one pump transitions on a performance line that is preset for the actuator operation signal. The control circuitry: determines the pump command current based on the actuator operation signal; and corrects the determined pump command current by using the calibration data, and outputs the corrected pump command current to the pump equipment.

The invention provides a compressor intelligent control method and system based on dynamic pressure relief and a storage medium, and the method comprises the steps: firstly, capturing the multi-physical field coupling characteristics of a compressor in a shutdown state in real time by deploying a pressure, temperature, vibration and current four-dimensional sensing network; secondly, based on a preset pressure entropy model, fusing the pressure fluctuation intensity, the temperature anomaly index, the high-frequency vibration factor and the current attenuation coefficient to quantitatively evaluate a pressure entropy value, and triggering a three-stage pressure relief mode based on the pressure entropy value; then, based on the deviation between the cavity pressure and the target pressure, pressure relief parameters are dynamically adjusted, and stable pressure transition is achieved; and finally, collecting full-link data of pressure relief operation, and dynamically optimizing pressure entropy model parameters based on reinforcement learning, so that the system continuously adapts to equipment aging and working condition changes. Through dynamic closed-loop adjustment, pressure relief energy consumption waste and equipment loss are reduced, and the stability of the pressure relief process is improved.

A system for monitoring a piece of hydraulic fracturing equipment such as a positive displacement pump. The system includes a plurality of sensors configured to detect conditions of the hydraulic fracturing pump and a processor that is communicatively coupled to the plurality of sensors and configured to analyze data received from the plurality of sensors. The processor is also configured to predict faults in the hydraulic fracturing pump based on the data analysis. The system also includes a communication interface that is configured for transmitting predicted fault data to one or more devices.

The embodiment of the present application provides a control method, a hybrid power system and a controller for a hybrid power system. The hybrid power system includes a through-shaft gear pump, the through-shaft gear pump includes a first input end and a second input end, the first input end is connected to the first branch, and the second input end is connected to the second branch. The method includes: when the first input end of the through-shaft gear pump is connected to the first branch, the first output torque of the engine and the remaining power of the power battery are obtained in real time; when the first output torque and the remaining power meet the first preset condition, the second input end of the through-shaft gear pump is controlled to be connected to the second branch; the second output torque of the motor is adjusted to change the first output torque to improve the fuel consumption rate of the engine. The present invention realizes flexible matching of motor models, effectively reduces costs, and realizes two-way power transmission from the engine and the motor to the through-shaft gear pump by introducing a through-shaft gear pump including two input ends.

A dispensing pump having a calibration system including a base including an upper base portion having a first end for mounting a motor and a second end and a lower base portion for mounting a pump on a first end and a second end. A hinge pivotally connects the second end of the upper base portion and the second end of the lower base portion. A linear actuator is mounted on the base and includes a drive rod having a coupler secured to an end thereof. The coupler joins the drive rod to a first end of a connecting member. A second end of the connecting member is secured to the lower base portion. An attachment plate attaches the motor to the first end of the upper base portion. The attachment plate extends outwardly from the motor for mounting the linear actuator. A proximity sensor is secured to the base upper position. A flag is secured to the drive rod coupler, wherein the flag moves directly with the drive rod. The flag includes a body and a calibration element projecting therefrom. The calibration element is positionally adjustable relative to the flag body. The calibration element is adapted to activate the proximity sensor when the linear drive is in a home position. The home position is adjustable upon adjustment of the calibration member. An actuation of the linear actuator drives the connecting member causing the lower base portion and upper base portion to pivot with respect to each other about the hinge, thereby changing an angle between the lower base portion and the upper base portion.

An electric pump system and method of operating the same involves pumping a fluid through a fluid passageway defined in a mechanical pump from a pump inlet to a hollow shaft of a motor, through the hollow shaft to an internal motor cavity defined by a housing of the motor, and through another fluid passageway defined in the motor housing and mechanical pump that leads to a pump outlet. The system and method further involve pumping the fluid through another fluid passageway defined in the mechanical pump from yet another pump inlet to the pump outlet. The temperature of fluid exiting the hollow shaft can be assessed and used by an electronic control unit (ECU) of the electric pump system to control the same. The electric pump system can be part of a cooling and lubrication system for an electric vehicle transmission, gearbox, differential or transfer case, for example.

A compressor for a commercial vehicle comprises:a plurality of cylinders, wherein each cylinder accommodates a reciprocating piston, wherein the reciprocating piston is driven by a crankshaft, anda plurality of cooling means, arranged at a cylinder head region of the cylinder, wherein one specific cooling means is assigned to one cylinder respectively.The compressor assembly comprises a sensor network, wherein the sensor network comprises a plurality of temperature sensitive switches, whereineach temperature sensitive switch is assigned to a cylinder.

A method for controlling a first reference temperature in a device (1) for compressing gas, the device (1) including an oil-injected element (2) for compressing the gas; an oil injection pipe network (6) for injecting oil into the oil-injected element (2), including: an apportioning means (8) for apportioning the oil into a first part and into a second part; an oil cooler (10) cooled by a fan (9), for cooling the first part; and a bypass (11) for diverting the second part past the oil cooler (10). An apportioning proportion of the first part is controlled to a required apportioning proportion, and subsequently a speed of the fan (9) is controlled to a required speed optionally on the basis of the apportioning proportion, wherein the apportioning proportion is controlled by a control unit (15) on the basis of a non-fuzzy logic algorithm.

A pump includes a power end and a fluid end coupled to the power end. The power end includes a plunger, and the fluid end includes a crossbore in selective fluid communication with inlet and outlet bores. A suction valve controls fluid communication between the inlet bore and the crossbore, and a discharge valve controls fluid communication between the outlet bore and the crossbore. An actuation device is used to move the discharge valve between an open position and a closed position. A position sensor measures a position of the plunger. A pressure sensor measures a pressure of the crossbore, the inlet bore, or the outlet bore. A controller operates the discharge valve based on data from at least one of the position sensor or the pressure sensor.

A method for determining a piston position of a piston in a hydraulic cylinder drive includes (i) providing a dynamic model of the cylinder drive, (ii) controlling driving of the cylinder drive with a control signal, (iii) detecting a real piston position of the piston, and (iv) adjusting parameters of the model on the basis of the real piston position. The model maps components of the cylinder drive and outputs a calculated piston position of the piston on the basis of detected operating parameters of the cylinder drive. A method of operating an arrangement having a corresponding hydraulic cylinder drive and a mechanism for implementing the methods are also disclosed herein.

The present disclosure relates to a mobile testing and / or calibration device and a method for testing and / or calibrating a hydraulic and / or electrical component at a location where the hydraulic and / or electrical component is used and / or under operating conditions of the hydraulic and / or electrical component. The mobile testing and / or calibration device comprises at least one first sensor unit for acquiring performance data of a hydraulic and / or electrical component to be tested and / or calibrated. Furthermore, at least one second sensor unit is provided for acquiring at least one testing and / or calibration parameter, wherein the testing and / or calibration parameter includes current parameters of the location and / or the operating conditions.In addition, at least one supply and / or control unit is provided for providing drive means and / or control parameters for the operation of the hydraulic and / or electrical component, and a computing unit for the automated testing and / or calibration of the hydraulic component during the operation of the hydraulic and / or electrical component based on the recorded performance data and the recorded test and / or calibration parameters.

A pump system can include a tube disposed about a rotor. The rotor can be configured to drive fluid through the tube as the rotor rotates. The tube can be replaceable when the tube fails. The pump system can include a processor configured to determine a predicted number of revolutions of the rotor before the tube fails based on a number n of past tube failure detection (TFD) events. Each past TFD event can have a corresponding nth TFD value based at least in part on the number of revolutions the rotor had rotated before the tube failed. When n=0, the predicted number of revolutions can be set to a putative value, and when n=1, the predicted number of revolutions can be based at least in part on the first TFD value and the putative value.

A method for the autonomous control of a surface unit of an oil well or gas well down-hole rod pump to provide for a reduction of gas interference and an increase in production, the method providing for autonomous adjustment of one or more pump operation characteristics, including one or more of dwell time, polished rod travel, compression ratio, and pump cycle rate, and the method including autonomous determination of a weight transfer position, autonomous determination of a rate of weight transfer, determination of a stretch factor of the polished rod, and autonomous adjustment of one or more of the pump operation characteristics for successive pump cycles of the down-hole pump installation based upon the weight transfer position, the rate of weight transfer, and the stretch factor.

Devices and methods for operating a diaphragm compressor. Embodiments of the present disclosure comprise an oil piston being driven to pressurize work oil against the diaphragm of the compressor. In embodiments, an injection pump provides a supplemental flow of work oil in the region of pressurized fluid, and such pump may be part of an actively controlled system. In embodiments, a pressure relief valve vents an overpump flow of work oil, and such valve may be variable. Embodiments provide feedback and control mechanisms, including control of the injection pump and the relief valve.

A pump includes a power end and a fluid end coupled to the power end. The power end includes a plunger, and the fluid end includes a crossbore in selective fluid communication with inlet and outlet bores. A suction valve controls fluid communication between the inlet bore and the crossbore, and a discharge valve controls fluid communication between the outlet bore and the crossbore. An actuation device is used to move the discharge valve between an open position and a closed position. A position sensor measures a position of the plunger. A pressure sensor measures a pressure of the crossbore, the inlet bore, or the outlet bore. A controller operates the discharge valve based on data from at least one of the position sensor or the pressure sensor.

A pump includes a power end (106a) and a fluid end (104a) coupled to the power end. The power end includes a plunger (208), and the fluid end includes a crossbore (244) in selective fluid communication with inlet and outlet bores (242, 243). A suction valve (290) controls fluid communication between the inlet bore and the crossbore, and a discharge valve (292) controls fluid communication between the outlet bore and the crossbore. An actuation device is used to move the discharge valve between an open position and a closed position. A position sensor measures a position of the plunger. A pressure sensor (441-443) measures a pressure of the crossbore, the inlet bore, or the outlet bore. A controller (420) operates the discharge valve based on data from at least one of the position sensor or the pressure sensor.

To provide a fluid pumping system effective for reducing the frequency of maintenance.SOLUTION: A fluid pumping system 1 comprises: multiple pumping devices 10 for pumping a fluid; a deterioration level estimation unit 115 to estimate a deterioration level of one of the pumping devices 10 based on information about a driving force of the one pumping device 10; a selection unit 215 to select at least one pumping device 10 from the multiple pumping devices 10 based on the deterioration levels estimated by the deterioration level estimation unit 115; and a pumping control unit 216 to cause the pumping device 10 selected by the selection unit 215 to pump the fluid.SELECTED DRAWING: Figure 2

A method for controlling a first reference temperature in a device (1) for compressing gas, the device (1) comprising: - an oil-injected element (2) for compressing the gas; - an oil injection pipe network (6) for injecting oil into the oil-injected element (2), comprising: - an apportioning means (8) for apportioning the oil into a first part and into a second part; - an oil cooler (10) cooled by a fan (9), for cooling the first part; and - a bypass (11) for diverting the second part past the oil cooler (10), wherein firstly an apportioning proportion of the first part is controlled to a required apportioning proportion, and wherein subsequently a speed of the fan (9) is controlled to a required speed optionally on the basis of the apportioning proportion, characterized in that the apportioning proportion is controlled by a control unit (15) on the basis of a non-fuzzy logic algorithm.

The present invention discloses a method for vibration control of a variable displacement compressor of a refrigeration system, the method comprising the following steps: receiving a request to change the rotational speed of the variable displacement compressor from a current rotational speed to a reference rotational speed; verifying whether the reference rotational speed requires minimization of compressor vibration; defining a reference speed range that includes the reference speed; defining a maximum rotational speed within the rotational speed range and a minimum rotational speed within the rotational speed range; comparing a reference rotation speed with the current rotation speed; changing the rotational speed of the compressor; measuring compressor vibration within a reference speed range; specifying the minimum and maximum vibration speeds; defining a vibration difference; setting a vibration difference criterion; comparing the vibration difference with the vibration difference reference; Defining the final operating speed of the compressor.

A method for controlling a first reference temperature in an apparatus (1) for compressing a gas, the apparatus (1) comprising: an oil-injected element (2) for compressing the gas; and an oil injection pipe network (6) for injecting oil into the oil-injected element (2); the oil injection pipe network (6) comprising distribution means (8) for distributing oil to a first part and a second part; an oil cooler (10) cooled by a fan (9) for cooling the first part; and a bypass (11) for bypassing the second part over the oil cooler (10); wherein first a distribution rate of the first part is controlled to a required distribution rate, and then a speed of the fan (9) is controlled to a required speed, optionally based on the distribution rate, the distribution rate being controlled by a control unit (15) based on a non-fuzzy logic algorithm.

A dispensing pump includes a linear actuator mounted on a base. The linear actuator includes a drive rod having a coupler. The coupler joins the drive rod to a first end of a connecting member. A second end of the connecting member is secured to a lower base portion of the base. An attachment plate attaches a motor to a first end of an upper base portion of the base. A flag is secured to the drive rod coupler, wherein the flag moves directly with the drive rod. The flag includes a body and a calibration element. The calibration element is positionally adjustable relative to the flag body. The calibration element is adapted to activate a proximity sensor when the linear drive is in a home position. The home position is adjustable upon adjustment of the calibration member.

The present invention relates to a method for detecting and analysing a vibration or noise signal generated by a running compressor, wherein the vibration or noise signal from the running compressor originates from collisions between a compressor element and a housing of the compressor, the method comprising the steps of detecting the vibration or noise signal in the time domain; translating at least part of the detected vibration or noise signal to the frequency domain, wherein the frequency domain comprises a running frequency of the compressor; calculating a signal power value by summing selected signal values in the frequency domain; calculating a harmonics power value by summing selected signal values of one or more selected harmonics in the frequency domain; calculating a harmonics-to-signal ratio by dividing the harmonics power value with the signal power value, and stopping the compressor if the harmonics-to-signal ratio exceeds a ratio of the running frequency harmonics of the compressor by a predetermined amount a predetermined number of times. The present invention further relates to the compressor assembly and a signal processor for performing the method.

The invention relates to a method for monitoring the dosage of at least one liquid within a dosing station (1), wherein the dosing station (1) comprises: a material supply (2) of the liquid to be dosed, a supply pump (3), a dosing pump (4) and a delivery line (5) extending between the supply pump (3) and the dosing pump (4), wherein the supply pump (3) is suitable for pumping the liquid from the material supply (2) through the delivery line (5) to the dosing pump (4) and wherein the dosing pump (4) is configured to dose a predetermined quantity of liquid, wherein during a dosing process a delivery rate of the supply pump (3) is recorded and the recorded delivery rate of the supply pump (3) is compared with a predetermined dosing rate of the dosing pump (4).

Disclosed herein are embodiments of a method for determining operational information of a metering pump, the metering pump comprising a dosing chamber, a displacement member and a drive motor for driving the displacement member, wherein the method comprises: receiving a plurality of detected values of an indicator quantity indicative of a strength of activation of the displacement member at respective positions of the displacement member during operation of the metering pump; computing the operational information from a machine-learning model trained to output said operational information responsive to receiving a plurality of input values derived from detected values of the indicator quantity.

A gas compressor includes a gas compressor machine body, a motor to drive the body, a temperature sensor (108, 109) for measuring the body's temperature, and a cooling fan (106) on a shaft (103) transmitting power to the body. A control unit (110) manages the gas compressor. This control unit (110) adjusts a temperature threshold value in response to the frequency of the input to the motor. It issues a notification if the temperature measured by the sensor (108, 109) surpasses this threshold. Notably, the temperature threshold value set when the motor input frequency is high is equal to or lower than the threshold value set when the motor input frequency is low.