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298results about How to "Reduce electricity load" patented technology

High efficiency air conditioner condenser fan

InactiveUS20050281672A1Save energyDependable electric load reductionPropellersPump componentsPower savingAerospace engineering
Novel twisted blades with an air foil for use with air conditioner condensers and heat pumps that provide improved airflow efficiency to minimize operating power requirements having an overall diameter across the blades being approximately 19 inches, and approximately 27.6 inches. The blades (AC-A) can run at approximately 840 rpm to produce approximately 2200 cfm of air flow using approximately 110 Watts of power from an 8-pole motor. Using an OEM 6-pole ⅛ hp motor produced approximately 2800 cfm with approximately 144 Watts of power while running the blades at approximately 1100 rpm. Power savings were 25% (50 W) over the conventional configuration. A second version of the fan (AC-B) with some refinements to the flow geometry produced a similar air flow while using only 131 W of power at 1100 rpm. Power savings were 32% (62 W) over the conventional configuration. Embodiments can include two, three, four and five blades equally spaced apart from one another about hubs. Additionally, a novel noise reduction configuration can include asymmetrically mounted blades such as five blades asymmetrically mounted about the hub. Short, conical diffusers were shown to further improve air moving performance by up to 18% at no increase in power. Embodiments coupled with electronically commutated motors (ECMs) showed additional reductions to condenser fan power of approximately 20%.
Owner:UNIV OF CENT FLORIDA RES FOUND INC

PLC-based intelligent household gateway apparatus

Disclosed in the invention is a PLC-based intelligent household gateway apparatus. The apparatus comprises: a master control unit, which is used for central controlling; an interaction unit, which is used for carrying out information interaction with a user; a metering unit, which is used for electric quantity metering; a wireless route communication unit, which is used for broadband access, indoor wireless network signal coverage, and communication with other communication terminals; a PLC communication unit, which is used for indoor power line carrier communication and is respectively connected with the master control unit, and a 220-V power line; a power supply limiting unit, which is used for controlling a household electricity load and is respectively connected with the master control unit and a household circuit input circuit; and a power supply unit, which is used for providing power for all the units. And the interaction unit, the metering unit and the wireless route communication unit are respectively connected with the master control unit. According to the invention, the intelligent household gateway apparatus that has high integration is integrated with the function as a household intelligent ammeter and the functions of intelligent power management, intelligent household, and home network access and the like, thereby building comfortable, intelligent, high-efficiency, and green household living environment.
Owner:南京博立康电力设备有限公司

Multi-target synergic planning method considering charging station and distributed power supply for power distribution network

The invention relates to a multi-target synergic planning method considering a charging station and a distributed power supply for a power distribution network. The method comprises the steps of considering uncertainty of the distributed power supply, analyzing a wind light power generation output rule, and building a multi-scene distributed power supply and load model according to season and timesequence characteristic; building an electric vehicle road traffic network model, considering traffic flow distribution and traffic network layout, calculating traffic economic benefit according to traffic flow captured by an electric vehicle charging station and average waiting time of a user, and allowing the power distribution network to be coupled to the traffic network; and comprehensively considering the distributed power supply and electric vehicle charging site selection and sizing, and building a multi-target synergic planning model by planning lowest total cost and optimal network node voltage mass as an upper-layer target and minimum distributed power supply removal quantity expected value as a lower-layer target. By the method, the running economy and the electric energy quality of a power grid are improved, moreover, the traffic congestion caused by construction of the charging station is prevented, and the stability of the power system is improved.
Owner:STATE GRID CORP OF CHINA +3

Preheating catalytic-oxidation device with burner starting for coal mine ventilation air methane

The invention provides a preheating catalytic-oxidation device with burner starting for coal mine ventilation air methane, and belongs to the technical field of ultralow-concentration methane oxidation; the device comprises a ventilation air methane gas supply system, a preheater and a reaction chamber disposed in a housing, a burner heating starting system, a gas intake system, a heat extractionsystem, and a measuring and controlling system, wherein a uniform-temperature uniform-flow bed layer and a catalytic-oxidation bed layer are orderly disposed in the reaction chamber along the gas flow direction, and hot gas generated by the burner heating starting system is delivered into the gas intake system. After the starting of heating in the reaction chamber, the ventilation air methane is fed into the preheater to be heated to a high temperature, and is oxidized into carbon dioxide and water in the catalytic-oxidation bed layer; a part of the oxidized hot gas is allowed to enter the heat extraction system for heat extraction and utilization, and the other part is allowed to enter the preheater for transferring heat to fresh ventilation air methane entering the preheater and for cooling, and then is discharged into atmosphere through a exhaust gas outlet. The invention has the advantages of compact structure, low power dissipation, simple operation, high reliability, flexible fuels, and the like.
Owner:SHANDONG UNIV OF TECH

Packing machine

The invention discloses a packing machine, which comprises a stander, wherein a bottle conveying device and a container conveying device are arranged below the stander; a translation frame capable of sliding between the bottle conveying device and the container conveying device is arranged on the upper part of the stander; a lifting frame capable of sliding up and down along the translation frame is arranged on the translation frame; a bottle catching component is arranged at the lower end of the lifting frame; a first servo motor and a second servo motor are arranged at a position, corresponding to the translation frame, on the stander; a first guide pinch roller, a second guide pinch roller, a third guide pinch roller and a fourth guide pinch roller are arranged on the translation frame; and after a transmission device moves around the first guide pinch roller, a synchronizing wheel of the first servo motor, a second guide pinch roller, a guide wheel arranged at the upper end of the lifting frame, the third guide pinch roller, a synchronizing wheel of the second servo motor and the fourth guide pinch roller, two ends of the transmission device are fixed on the lower part of the lifting frame. The packing machine has a simple structure; a moving trace of the packing machine can be finished according to any assumed realizable curve trace; furthermore, the packing machine is stable in performance, high in working efficiency and low in electrical load.
Owner:GUANGZHOU TECH LONG PACKAGING MACHINERY CO LTD

Hydro-electric combination drive friction type super capacitor mine hoist and control method thereof

The invention discloses a hydro-electric combination drive friction type super capacitor mine hoist and a control method thereof, and belongs to the field of mine hoists. The hydro-electric combination drive friction type super capacitor mine hoist and the control method thereof are characterized in that a first cage conductor and a second cage conductor are connected with a hoisting rope respectively, and the hoisting rope is connected with a mine hoist winding drum; the mine hoist winding drum is connected with a hoist motor; the hoist motor is connected with a high-voltage inverter, a first hydraulic pump / motor, and a direct current bus of the high-voltage inverter; the first hydraulic pump / motor is connected with a hydraulic energy-storing loop; a direct current bus side voltage detecting circuit is connected with a bidirectional DC / DC converter; a super capacitor side voltage detecting circuit is connected with the bidirectional DC / DC converter; output of the direct current bus side voltage detecting circuit and the output of the super capacitor side voltage detecting circuit are connected with a controller; a revolution speed transducer is connected with the controller, and the controller is connected with a control site of the hydraulic energy-storing loop, the control site of the high-voltage inverter, and the control site of the bidirectional DC / DC converter. According to the hydro-electric combination drive friction type super capacitor mine hoist and the control method thereof, use ratio of electric energy is increased, and the service life of circuit components is prolonged.
Owner:TAIYUAN UNIV OF TECH
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