Provided is a method for multi-supplying gas, the method comprising: installing a control valve and an flow meter on each of a plurality of branch lines branched from a main supply line, in which one or more gases are supplied, and supplying the gas; and providing the gas by adjusting flow of the gas by a controller connected to each of the control valve and the flow meter, wherein the controller has a first control manner, which controls each of the control valves based on a rate of flow measured by the flow meter to required portion flow for each branch line, and the first control manner adjusts an open rate of the control valve if the rate of the measured flow to the required portion flow is not within a predetermined range, and a unit of adjusting the control valve increases or decreases according to a difference between the measured flow and the required portion flow.

A system and method for irrigation, and managing irrigation of, a property or landscape. The system may include an irrigation management server (“IMS”) with the information for an irrigation system. The system may access the irrigation system that has been input into the IMS as well as access a third party map that may display the irrigation system over the map. The system may provide for a user's GPS location to be accessed through and identify the location of the user with respect to the map and irrigation overlay. The system display may provide information regarding the landscape to a user. The system may allow for manipulation of the irrigation system while overlaid on the map by the creation and manipulation of zones within the irrigation system as well as the creation and manipulation of other commands, including watering times and watering duration.

A fracturing system is provided. In one embodiment, the fracturing system includes a fracturing manifold for routing fracturing fluid to multiple wells. The fracturing manifold can be coupled via fluid conduits to fracturing trees installed at the wells. In some cases, each fracturing tree that is coupled to the fracturing manifold is coupled by at least one rigid fluid conduit. The fracturing manifold can include a trunk line that provides fracturing fluid to multiple outlet branches, which can include valves for controlling flow of fracturing fluid to wells downstream of the valves. Additional systems, devices, and methods are also disclosed.

Provided is a multi-port gas flow rate control apparatus. The multi-port gas flow rate control apparatus includes a gas supply chamber configured to supply a measurement gas input through one gas inflow channel while allowing the measurement gas to diverge into a plurality of flows, a plurality of gas divergence flow channels each having one side connected to the gas supply chamber and configured to transfer the measurement gas flowing through the gas supply chamber to a plurality of gas sensors, respectively, and a gas measurement chamber configured to accommodate the plurality of gas sensors, including the plurality of gas divergence flow channels configured to connect to the gas supply chamber to the plurality of gas sensors to transfer a gas outflow diverging through the gas supply chamber to the plurality of accommodated gas sensors, and configured to discharge the gas outflow sensed by the plurality of gas sensors.

A quantitative essential oil dripping device which includes: N sealed essential oil containers for containing essential oil, wherein N is a positive integer greater than or equal to 1; N gas inlet tubes and N oil outlet tubes, which are all inserted into the N essential oil containers respectively, wherein in each of the essential oil containers, a gas outlet of the gas inlet tube is located above an inlet of the oil outlet tube; a gas pump arranged at gas inlets of the N gas inlet tubes; a throttle valve communicating the gas pump with the essential oil container; and a drip number detection module configured to detect the drip number of the essential oil dripped from an oil outlet of the oil outlet tube. During use, the gas pump is started, pressure is applied to the essential oil container through the gas pump, and the essential oil is driven to be dripped from the oil outlet tube under the combined action of the gas pump and the throttle valve, thereby achieving the dripping of the essential oil. The drip number of the essential oil dripped from the oil outlet of the oil outlet tube is detected through the drip number detection module, and the amount of the dripped essential oil is measured by recording the drip number, thereby accurately controlling the dripping of the essential oil. After the dripping of the essential oil is completed, the gas pump is stopped.

A manifold includes a housing defining first and second inlets and outlets. With the housing, a valve retainer defines a first chamber in fluid communication with the first and second inlets. The valve retainer may engage a first valve assembly having a first actuator attached to a first valve member for regulating flow from the first outlet, and a second valve assembly having a second actuator attached to a second valve member for regulating flow from the second outlet port. A sensor assembly is configured to detect first and second operations of the first and second valve assemblies. A controller directs independent operations of the first and second actuators based on first and second flow rates derived from the first and second operations. The first and second valve members may be positioned within portions of respective first and second valve bodies in open fluid communication with the first chamber.

The disclosure extends to methods, systems, and computer program products for generating and optimizing irrigation protocols that are in compliance with municipal restrictions. The disclosure also extends to methods, systems and computer program products for providing automated irrigation.

In one embodiment, a method for optimizing downstream processes for a flow controller controlling various devices in a flow system is disclosed. The method includes receiving by a processing element historical data corresponding to flow characteristics for one or more flow devices controlled by the flow controller; evaluating by the processing element one or more current run settings based on the historical data; modifying by the processing element the one or more current run settings based on the historical data; and transmitting by the processing element the modified run settings to the flow controller to vary the operation of the one or more flow devices.

The invention relates to a method for cooling a tool in a heat treatment furnace, wherein: the tool is supplied during normal cooling operation with coolant from a coolant reservoir through a supply inlet (1), which coolant is returned into the coolant reservoir from the tool via a return flow (2); the supply inlet (1) is coupled by means of an electric actuator (3) alternatively to the coolant reservoir or to the public water supply and the return flow (2) is coupled by means of a further electric actuator (3) alternatively to the coolant reservoir or to the public waste water system (4); the actuators (3, 3′) are supplied with a feed current during normal cooling operation and held in a first position in which coolant is supplied to the tool through the supply inlet (5) from the coolant reservoir and the coolant is fed back through the return flow (2, 6) into the coolant reservoir; and, upon interruption in the power supply, the actuators (3, 3′) are forced into an emergency position in which cold water is supplied to the tool through the supply inlet (7) from the public water supply and the water is discharged through the return flow (2, 8) into the public waste water system (4).

A fluid control device includes a first block row and a second block row each including a plurality of joint blocks having a width of the standard size and arranged along a first directions, the first block row and the second block row being arranged at predetermined intervals in the second directions perpendicular to the first directions, wherein each of the plurality of joint blocks constituting the first block row has a large diameter flow path for forming a single line, and each of the plurality of joint blocks constituting the second block row has a smaller diameter flow path than the large diameter flow path for forming the first line and the second line.