An apparatus for removing and cleaning medicine powder as residue from an automatic dispenser includes a pressure sensor, a positive pump, and a control module. The control module includes a control unit and a power supply unit. The pressure sensor detects a first pressing force to obtain a predetermined value. The pressure sensor detects a second pressing force in a first tube to obtain a first detection value. The control unit is configured to obtain a first difference value, and determine whether the same is within a reference range. The power supply unit supplies power to the positive pump if the first difference value is not within the reference range. The positive pump creates an airflow to blow the medicine powder out of the first tube when powered. A method for cleaning up medicine powder is also provided.

The present invention relates to a distribution pump arrangement for a bi-directional hydraulic distribution grid (10). The distribution pump arrangement comprising: a hot conduit control valve (20) in a hot conduit (12); a first distribution pump (22) having an inlet (22a) connected to the hot conduit (12) at a first side (20a) of the hot conduit control valve, and an outlet (22b) connected to the hot conduit (12) at a second side (20b), opposite the first side (20a), of the hot conduit control valve (20); a pressure difference determining device (80, 80′) arranged beyond the second side of the hot conduit control valve (20) and configured to determine a local pressure difference, Δp, between a local pressure, p.sub.hot, of heat transfer liquid in the hot conduit (12) and a local pressure, p.sub.cold, of heat transfer liquid in the cold conduit (14); and a controller (90) configured to: while Δp<a threshold value, set the distribution pump arrangement in a flowing mode, wherein: the first distribution pump (22) is set to be inactive, and the hot conduit control valve (20) is set to be open, while Δp≥the threshold value and p.sub.cold>p.sub.hot, set the distribution pump arrangement in a hot conduit pumping mode, wherein: the hot conduit control valve (20) is set to be closed, and the first distribution pump (22) is set to be active, thereby reduce the local pressure difference.

In a system and method for supervisory management of fluid pipeline/LNG plant/gas plant/refinery/offshore oil and gas platform allowing simultaneous execution of commands at all control points, significantly increasing the speed at which an optimal set-point can be achieved in comparison to manual entry of commands. The pipeline/LNG plant/gas plant/refinery/offshore oil and gas platform control system has a cascade control configuration that can operate in conjunction with existing pipeline/LNG plant/gas plant/refinery/offshore oil and gas platform protection systems. The control room operator can activate automatic operation via the supervisory management system, and can subsequently command that the system switch back to manual control instantaneously. Dynamic models predict operating conditions of pipeline/LNG plant/gas plant/refinery/offshore oil and gas platform processes subject to constraints on pressure and other operating parameters. A steady-state optimization layer, operating in conjunction with real-time control, determines optimal states without operator intervention.

An estimator comprises: an acquisitor to acquire a plurality of data pairs each containing a valve body opening of the vacuum valve and the chamber pressure at the valve body opening; and an operator to operate the gas species characteristic value and the first chamber volume estimation value, based on an exhaust's expression representing a relationship among the second effective exhaust rate, a flow rate of a gas introduced into the vacuum chamber, a chamber volume, and a chamber pressure, the plurality of data pairs acquired in the acquisitor, and correlation data between the valve body opening and the second effective exhaust rate about the predetermined known gas.

Methods, devices, and assemblies for controlling pressure in a supply grid are provided. The supply grid is suitable for supplying fluid to loads. The supply grid has first sensors for measuring the flow and/or the pressure of the fluid at first locations in the supply grid and a pump for pumping the fluid or a valve for controlling the flow of the fluid. The method includes: measuring the flow and/or pressure of the fluid at the first locations in the supply grid by the first sensors; predicting the pressure at the second location in the supply grid using a self-learning system based on the measured flows or pressures, wherein the self-learning system is trained to predict the pressure at a specified location in the supply grid; and actuating the pump or the valve at least also based on the pressure predicted by the trained system at the second location.

In some examples, a pressure regulating valve comprising a pressure chamber, a compressor configured to establish fluid communication with the pressure chamber, a vent valve configured to establish fluid communication with the pressure chamber, a pressure sensor, and a controller. The controller may determine a pressure based on the signal generated by the pressure sensor, and compare a pressure setpoint and the pressure. The controller may be configured to alter the pressure in the pressure chamber based on the comparison between the pressure setpoint and the pressure. For example, the controller may control the compressor to increase the pressure in the pressure chamber and/or control the vent vale to decrease the pressure in the pressure chamber. The altered pressure of the pressure chamber may generate movement of a restricting element within the pressure regulating valve.

Certain embodiments provide a vacuum generation system with an override PID controller, a proportional valve, and a vacuum generator. The override PID controller allows the vacuum generation system to control the operating range of supply air pressure that is provided to the vacuum generator. By controlling the operating range of the supply air pressure, the vacuum generation system is able to avoid entering the decreasing or non-monotonic region of the vacuum generator.

In systems and methods for adjusting the firmness of a mattress assembly and/or modulating the pressure in a mattress assembly, a mattress assembly includes: a two-dimensional array of bladders; at least one pump that is in fluid communication with the bladders to provide air and/or fluid to the bladders; multiple valves that are interposed between the pump and the bladders to control the flow of air and/or fluid to or from the bladders; a pressure sensor operably connected to one or more of the bladders; and a controller in communication with the pump, the valves, and the pressure sensors. The controller is configured to selectively actuate the pump and one or more of the valves, while receiving feedback from the pressure sensors, in order to adjust the firmness of the mattress assembly and/or modulate the pressure in the mattress assembly.

The present invention is an apparatus for tire inflation designed to allow users to properly inflate, maintain, and monitor the condition of vehicle tires. The tire inflation device of present invention is comprising of: a carrying case having a housing, a lid attached to the housing using a hinge, a plurality of locking latches to lock the lid over the housing and a handle configured over the lid to allow easy transport of the tire inflating device. The tire inflation device further comprises, a control head assembly to control the working of the device, an air compressor coupled with the control head assembly to provide compressed air for inflation of tires, a hose assembly to connect the device with the vehicle tires and a plurality of power adapters to connect the device with the power source. The control head assembly of the inflation device is further comprising of, a program control module, an auto level manifold, a plurality of output modules, an air release valve, a pressure release valve, a plurality of buttons and switches, and a display unit.

An estimator comprises: an acquisitor to acquire a plurality of data pairs each containing a valve body opening of the vacuum valve and the chamber pressure at the valve body opening; and an operator to operate the gas species characteristic value and the first chamber volume estimation value, based on an exhaust's expression representing a relationship among the second effective exhaust rate, a flow rate of a gas introduced into the vacuum chamber, a chamber volume, and a chamber pressure, the plurality of data pairs acquired in the acquisitor, and correlation data between the valve body opening and the second effective exhaust rate about the predetermined known gas.