139results about How to "Increase operating power" patented technology

The invention discloses a heating control method and device and system of an air conditioner. The heating control method comprises the following steps of: monitoring a current environment temperature in real time when the air conditioner enters a heating mode; obtaining a difference value between the current environment temperature and a set temperature, and comparing the difference value and a preset temperature; and controlling the working state of an electric heating device according to a comparison result of the difference value and the preset temperature, wherein the working state comprises operation stopping, improvement of operating power and reduction of operating power. The heating control method and device and system of the air conditioner solves the technical problem that the technical scheme of using the air conditioner for judging the starting or stopping of the electric heating device in the prior art causes the frequent starting or stopping of the electric heating device, thereby causing the instability of indoor environment temperatures.

A vehicle (150) includes a fuel cell stack (151) started when the stack is below freezing, by connection (158) to the vehicle propulsion system (159) within a few seconds of starting the flow of fuel (179) and oxidant (173), or when open circuit voltage (155, 156) is detected. The fuel is in excess of stochiometry requirement and the oxidant is in excess of at least twice stochiometric requirement, either may be at about atmospheric pressure or at 4 kPa (0.6 psi) or more above the pressure of any water in said water passages, and either may be below freezing. Water transport plates (84, 86, 88, 89) have water passages connected to a water circulation loop (170) including a reservoir (164) having an auxiliary heater (161) connected (160) to the stack. Warming of cell stack materials and ice in the water transport plates, heat of fusion of melting ice, warming of melted water, and evaporative cooling of water melted in the water transport plates keep the fuel cell cool until liquid coolant can be circulated.

A method significantly reduces the average power for radio communication in a communication system, such as a system that has applications requiring low communication latency. The method may use a low power radio communication circuit (e.g., a non-heterodyne receiver) to wait for a communication request, taking advantage of the low power consumption of the radio communication circuit. Subsequent to receiving and validating the communication request, the communication system may switch to a more efficient—but higher power—communication circuit. Thus, effective communication is achieved without making undesirable tradeoffs, such as reduced sensitivity.

An analog-to-digital converter for converting an analog input signal to a digital output signal is described. The ADC includes a comparator circuit having first to nstages of comparators responsive to the analog input signal. Each comparator includes a plurality of magnetoelectronic devices for performing comparison function. Each magnetoelectronic device has one or more ferromagnetic elements capable of being switched into a first or second magnetization states. The amplitude of analog input signal upon exceeding a predetermined threshold level (Is or Vs) of a respective magnetoelectronic device sets a magnetization state of the respective magnetoelectronic device to the first state and the resulting output of the respective magnetoelectronic device to a HIGH state, and vice-versa. In one embodiment, the magnetoelectronic device is a Hybrid Hall Effect device. In another embodiment, the magnetoelectronic device is an isolator.

A direct hydrocarbon fuel cell device pertaining direct electro-oxidation of hydrocarbon fuels at the anode, which is separated electronically from the cell cathode by an alkaline medium, together with a fuel container, fuel delivery, and reaction product releasing system is disclosed. The fuel cell is constructed in such a manner that highly concentrated fuel is added to the cell anode chamber and transformed into fuel vapor through a fuel vapor permeable membrane before the fuel reaches the cell anode. At the cell anode, the hydrocarbon fuel is consumed and at the cell cathode oxygen reduction takes place, and water as one of the fuel cell reaction products is evaporated off at cell cathode so that there is no need for recirculation of unreacted fuel at the cell anode or water at the cell cathode. Compared to the prior art, the present invention for a direct hydrocarbon fuel cell is more suitable for portable electronics applications by maximizing the energy content in the fuel package, optimizing the fuel cell performance while minimizing the control system complexity, and lowering the cost by using non-noble metal based catalysts while achieving the needed fuel cell performance and conversion efficiency.

The invention discloses a cable-stayed bridge inhaul cable intelligent dehumidifying and deicing system and method and relates to the field of bridge operation safety protection. The system comprisesan air feeding unit, a monitoring unit and a control unit. The air feeding unit comprises a high-pressure dry air production device and an air heating device. The high-pressure dry air production device is used for generating high-pressure dry air and driving the generated high-pressure dry air to pass through the air heating device, enter inhaul cables from the bottom ends of the inhaul cables and flow out from the top ends of the inhaul cables. The monitoring unit comprises humidity sensors and temperature sensors, all of which are arranged in the inhaul cables, and the monitoring unit further comprises humidity sensors, temperature sensors and icing sensors, all of which are arranged on the outer surface layers of the top ends of the inhaul cables. The control unit is electrically connected with the air feeding unit and the monitoring unit. The inhaul cables can be automatically dehumidified and deiced according to external climate changes, the inhaul cables are protected against corrosion, and meanwhile the inhaul cables are effectively prevented from being iced.

The present invention provides a method for finding a resonant frequency point for a transducer. According to the method, a method for reducing a resonant frequency point search interval is carried out for multiple rounds, the search interval is reduced to a reasonable range, then a resonant frequency point is searched in the interval, the search speed can be greatly improved, as the search interval becomes narrower, the density of the frequency sweep in the search interval is also increased, and thus the search accuracy is greatly improved.

A refrigerant system 1D comprises a heat insulating housing 3 provided with an accommodating space inside and a refrigeration unit 9 attached to a lower portion of the heat insulating housing 3, in which a compressor 5, a gas cooler 6, an internal heat exchanger 10, a restriction means 16 and an evaporator 8 accommodated in a heat insulating case 7A are disposed on a unit base 4. The gas cooler 6 and the heat insulating case 7A are disposed so that air heat-exchanged by the gas cooler 6 moves toward the heat insulating case 7A, an air passage T is provided between the unit base 4 and the heat insulating case 7A, the air heat-exchanged by the gas cooler 6 is passed through the air passage T to be discharged outside, and the internal heat exchanger 10 is disposed in such a manner that it is embedded in a heat insulating material layer 7C provided around the heat insulating case 7A to be provided with a heat insulation property. Accordingly, exhaust heat-exchanged by the gas cooler is discharged outside without stagnation, and increases in an overload and operation power of the compressor are suppressed and the durability of the compressor can be improved. Further, the heat-exchanging efficiency of the internal heat exchanger can be improved and the generation of condensation on a surface of an outer side tube of the internal heat exchanger can be prevented.

The invention discloses a novel tri-power, efficient, energy-saving three-phase asynchronous motor used for an oil extractor, which comprises a rotor and a stator winding; the stator winding adopts the unique 3Y composite series connection method and the novel technology of turn removal; the stator winding corresponds to a low power grade, a medium power grade and a high power grade, and the number of turns of serial coils in each phase reduces with the power grade, with the low grade power corresponding to a maximum number of turns and the high grade power corresponding to a minimum number of turns; and the switch among the three power grades is achieved by three contactors. As the invention has the high, the medium and the low power grades which are all available for option, and the high power grade has a high start-up torque and is applied to starting the oil extractor, the motor can automatically operate at the low or medium power grade on the completion of the start-up process, and can realize two-way automatic switch of operating power according to the change in the working condition of an oil well. As the motor has the advantages of great start-up torque, high operating efficiency and power factor, convenient control, good reliability and remarkably reduced no load current, the motor can achieve better energy-saving effect.

A VoIP terminal device is configured to enter a power-saving state upon the occurrence of a specified condition. The VoIP terminal device is further configured to wake up from the power-saving state when a communication associated with a specified communication operation is received by the VoIP terminal device. In particular, the operating power of the VoIP terminal device is increased to an extent sufficient to perform the specified communication operation.

Provided are a method for producing a super-low sulfur gas oil blending component or a super-low sulfur gas oil composition having a sulfur content of less than 5 mass ppm, under relatively mild conditions, without greatly increasing the hydrogen consumption and without remarkably decreasing the aromatic content; and a super-low sulfur gas oil composition having a sulfur content of less than 5 mass ppm which exhibits a high heating value, is excellent in fuel economy and output power, and is free from an adverse effect on a sealing rubber member or the like used in the fuel injection system and thus does not cause the leakage of a fuel. A method for producing a super-low sulfur gas oil blending component or a super-low sulfur gas oil composition having a sulfur content of less than 5 mass ppm is also disclosed.

The invention discloses an energy-saving vending machine and an energy-saving control method thereof. The vending machine comprises a vending machine body, the vending machine body comprises a vendingmachine function module, an environment detection module used for detecting environment information, a main control module and an energy-saving control module, wherein the energy-saving control module is electrically connected with the vending machine function module, and the main control module is electrically connected with the vending machine function module and the environment detection module; the main control module can timely reduce the energy consumption of the function module when the vending machine operates, the service life of the function module of the vending machine is shortened, the energy consumption is reduced, and the maintenance workload of workers and the operation cost are reduced due to the formation of feedback closed-loop control.

The invention belongs to the technical field of monitoring systems, and particularly relates to a GMP workshop intelligent monitoring management system which comprises an acquisition module, a storagemodule, a communication module, a main control module, an analysis module, a processing module and a client. The processing module comprises a fresh air system and a dust removal and ventilation device; the dust removal and ventilation device is mounted at an air inlet and an air outlet of the fresh air system; the acquisition module comprises a temperature sensor, a humidity sensor, an illuminance sensor and a particle counter; according to the invention, various monitoring and management can be carried out on the GMP workshop, corresponding processing is carried out intelligently, the environment in the workshop is regulated and controlled, the production energy consumption is reduced, and the product quality is improved.

Disclosed is a combustion-efficiency improving apparatus immerged into a fuel tank of an internal combustion. The apparatus includes a core rod 10 having a ceramic powder 12 coated or impregnated on an outer periphery of a silver alloy 11, and an aluminum alloy cladding the ceramic powder 12; and an internal electrode 20 enclosing an outer periphery of the core rod 10 for creating a potential difference through shifting of electrons between the internal electrode and fuel. A reduction potential of water contained in the fuel is achieved by an electromotive force and an electromagnetic wave generated from the core rod and the internal electrode. A reduction potential of the water contained in the fuel is achieved by the electromotive force and the electromagnetic wave generated from the apparatus, thereby improving the combustion efficiency of the fuel, as well as saving the fuel and minimizing the smoke.

The invention provides a food processor, comprising: a machine base having a receiving cavity; a cup body, with the cross-sectional area of the top end of the cup body being larger than the cross-sectional area of the lower end of the cup body, the cup body being arranged on the frame, and a spoiler rib being arranged on the inner wall of the cup body; a stirring assembly one end of which extendsinto the inside of the cup body, and the other end of which is connected with a permanent magnet direct current motor; a permanent magnet dc motor disposed in the accommodation chamber, wherein the speed range of the permanent magnet dc motor is from 10000 rpm to 18000 rpm. By keeping the rotational speed of the permanent magnet dc motor between 10000 rpm and 18000 rpm, As a result, when too manyingredients are added to the food processor, namely when the load is large, the speed of the permanent magnet dc motor will not be lower than 10000rpm, which effectively ensures the crushing effect ofthe food materials, and when the load is small, the speed of the permanent magnet dc motor will not exceed 18000rpm, which effectively reduces the noise of the food processor and improves the user experience.

The invention relates to an IGBT variable-frequency power source for an energy-saving intermediate-frequency smelting furnace. The IGBT variable-frequency power source comprises a power source cabinet, a diode rectifier bridge, filter capacitors, IGBT modules, an induction coil and a resonance capacitor. In the power source cabinet, the filter capacitors, water cooling boxes, the IGBT modules, a connecting copper bar and a current transformer are installed in a square box in an integrated mode to form a structural unit entity. The filter capacitors are arranged in through space above a separation plate of the box, the water cooling boxes for mounting of the IGBT modules are arranged in through space below the separation plate, and the common connecting copper bar is fixed to an insulation supporting block at the top of the box. The IGBT modules and the filter capacitors are composed of more than two entities. Through optimization of the process layout, currents flowing through an IGBT device are even and consistent, and the capacity utilization rate of the IGBT device and the running power of the IGBT induction heating power source are increased; the application range of the IGBT induction heating technology is widened, so that the energy saving and environment friendliness advantages of IGBT induction heating equipment are further achieved.

The invention discloses a multiwinding series connection variable volume induction motor and a control device thereof. The multiwinding series connection variable volume induction motor is provided with a stator winding, wherein the stator winding is formed by compounding three sets of three-phase windings; the three sets of windings are correspondingly connected in series respectively; each phase of winding is provided with three line outlet ends; the three-phase windings are provided with nine line outlet ends in total and respectively correspond to a high-power grade, a medium-power grade and a low-power grade; each set of winding is distributed in a single layer; and three contactors of the control device are respectively connected with the line outlet ends of the three sets of windings so as to realize three-power three-grade switching. The three-phase windings adopt a Y connection method. The three sets of windings are in Y-delta mixed series connection; delta connection is adopted in a high-power volume connection method; a Y-delta mixed series connection method is used for medium-power volume; and a 2Y-delta mixed series connection method is used for low power. Compared with the prior art, the invention can be more favorably suitable for the condition of load change and has the advantages of large starting torque, high running efficiency and power factor, simplicity and convenience for control, high reliability, obvious reduction of no-load current and good energy saving effect.