34results about How to "Improve economy" patented technology

Apparatus and processes for the production of a sulfur dioxide-containing combustion gas are provided in which a sulfur-containing liquid is pneumatically atomized with a sulfur gun or lance that utilizes an atomizing gas to form an atomized combustion mixture for combustion in a sulfur furnace. The sulfur dioxide-containing combustion gas may be used in the manufacture of sulfuric acid by the contact process.

The invention discloses a portable dolly for replacing a current transformer, and a manufacture method thereof. The portable dolly is characterized by comprising two mutually articulated dolly frames. The dolly frames are provided with a guide rail. The guide rail is in sliding connection with an elevating device. The economic benefits are increased, the labor intensity of work personnel is reduced, and the safety of an operation process of replacing the current transformer is improved.

The invention discloses a heating management system for a hybrid vehicle. The heating management system comprises an engine heating large cycle and an electric heating small cycle. The engine heating large cycle is used for heating a water way, and the water way forms a circulating loop sequentially through an engine circulating water pump, a thermostat, an inlet B of a three-way valve, an outlet C of the three-way valve, a passing water PTC (positive temperature coefficient) heater and a cab heating unit; the electric heating small cycle is used for heating the water way; the water way forms another circulating loop sequentially through a PTC water pump, an inlet A of the three-way valve, the outlet C of the three-way valve, the passing water PTC heater and the cab heating unit. The heating management system has the advantages that in a hybrid mode (in which an engine runs), a passenger compartment is heated by high-temperature cooling water flowing out of the engine and passing the passing water PTC heater, the demand of passengers for heating is met, a defrosting function and a defogging function are achieved, energy consumption is lowered, all-electric mode driving range is widened, the whole hybrid vehicle is more economical, and the environmental friendliness of the hybrid vehicle is better embodied.

The invention relates to a belt conveyor, in particular to a self-moving flexible belt conveyor. The self-moving flexible belt conveyor aims at solving the problems that the existing belt conveyor cannot realize the discharging along an arc section with the relatively small radius of turning circle and has low economical efficiency. The self-moving flexible belt conveyor comprises a movable head station and a movable tail station, and further comprises at least two middle movable modules, a plurality of connecting rod pieces, a traction device, a plurality of bottom moving mechanisms and a track, wherein the movable head station, the movable modules, and the movable tail station are in hinged joint in sequence from the head to the tail through the plurality of connecting rods; the movablehead station, the movable tail station and the middle movable modules are connected to the track laid on the ground through the bottom moving mechanisms in a rolling manner; and the traction device isconnected to the movable head station and the movable tail station by two steel wire ropes. The self-moving flexible belt conveyor belongs to the field of machinery.

The invention provides a method for coordination control of engine and motor torques to meet torque reducing requirement of a speed changer in hybrid driving process. The method reaches torque reducing purpose by coordination control of motor and engine torques, increases torque reducing response speed by fast response characteristic of the motor, benefits for adjustment of speed ratio and improves the driving comfortableness and dynamic property. Simultaneously, the invention preferentially reaches the torque reducing purpose by adjusting the motor, reduces dynamic process of the engine, facilitates the engine to work more stably and improves economical efficiency.

The invention provides a method for preparing an Sb (V) contaminated site efficient ecological remediation flora from biogas residues. By adding a carbon source and sulfate to the biogas residues, a sulfate-reducing flora in the biogas residues achieves rapid growth, and meanwhile sulfide is generated; and then, antimonate is added to the biogas residues to consume and inhibit the sulfide which grows from the sulfate-reducing flora, due to the existence of the sulfide, the toxicity of the antimonate on the sulfate-reducing flora is also greatly reduced, and meanwhile, the Sb-resistant performance of the cultured sulfate-reducing flora is also improved.

The invention discloses an automatic drying device based on wet method ceiling framework horizontal automatic glue spraying. The automatic drying device based on wet method ceiling framework horizontal automatic glue spraying is characterized by comprising a sealed type hot air circulation drying oven (13) and a multi-stage stepping vertical lifting system (12). A ceiling framework subject to horizontal automatic glue spraying is horizontally placed on a tray, the tray carried with the ceiling framework finishes drying of the ceiling framework through the sealed type hot air circulation dryingoven via the multi-stage stepping vertical lifting device according to time set by the process, on the premise of meeting the process needs, the length of the drying oven is reduced, the whole spaceof the drying oven is reduced, occupied area is saved, meanwhile, heating power of the drying oven is reduced, and therefore energy consumption is reduced, drying of a framework glue film in the limited space is achieved, and economy is improved.

The invention provides a phase-transition heat-storage skylight comprising a window frame mounted on the opening of a roof board, and glass inlaid into the window frame, wherein a low wall having the height of the window is connected to the edges on the shade side of the opening of the roof board, and a lateral skylight and a top skylight are connected to the edges on the sunny side thereof, thus forming a roof sun space enclosed by the low wall, the lateral skylight and the top skylight; and an openable heat-storage cover board is hinged to the edge on one side of the shade side of the opening of the roof board, and the lower surface of the openable heat-storage cover board is covered with a heat insulation layer. The skylight employs various solar energy technologies for indoor heating and natural ventilation by using no commercial power; the indoor environment is clean and comfortable owing to the solar-based heating; and by combining the solar energy technology and the skylight, the heat-preservation performance of the skylight is greatly improved.

The invention relates to a method for acquiring the optimal charging and discharging power of an energy storage system of a wind power plant. The method comprises the following steps of: determining basic configuration of the energy storage system based on historical wind power and load data and an annual wind power and load prediction curve; based on a daily wind power load prediction curve, a real-time wind speed, the real-time SOC of the energy storage system and a wind power on-grid time-of-use electricity price, determining the charging and discharging state and the charging and discharging coefficient of the energy storage system; acquiring the charging and discharging power of the energy storage system; calculating the annual net yield of the energy storage system on the basis of the electric benefits, the environmental benefits, the peak regulation benefits, the equipment investment cost and the equivalent charging and discharging cost of the energy storage system; and calculating a wind curtailment consumption rate on the basis of the effect of the energy storage system for consuming the wind curtailment power of a wind power plant group, and determining the optimal charging and discharging power of the energy storage system according to the annual net yield and the wind curtailment consumption rate of the energy storage system. The peak regulation cost of the system can be reduced, generation of wind curtailment is reduced, the utilization level of wind energy can be effectively improved, and therefore, the annual net yield of the energy storage system is improved.

The present invention relates to a voltage conversion device for an electric vehicle, comprising: an inverter unit comprising three batches of a plurality of switch assemblies for providing three-phase current required by a motor of the electric vehicle, and a first input end and a second input end; a third input end, connected with the three-phase output end of the inverter unit in a configurable manner; wherein the inverter unit is configured to convert a second direct-current voltage input through the third input end and the second input end into a first direct-current voltage so as to provide the first direct-current voltage between the first input end and the second input end. According to the voltage conversion device, the charging cost of the electric vehicle is saved, the economical efficiency of whole vehicle manufacturing is improved, the weight of the whole vehicle is reduced, and whole vehicle layout optimization is facilitated.

The invention discloses a method for improving energy efficiency and absorbing wind power by a high-temperature steam heat pump in a comprehensive energy system. The method comprises the following steps: introducing the high-temperature steam heat pump into the system in combination with the current development situation of coastal wind power and the steam load demand of an industrial park, and constructing a comprehensive energy optimization scheduling architecture of the coastal industrial park; on the basis of an energy gradient utilization principle, different grades of heat energy and thermoelectric coupling are supplied according to different heat load temperature requirements, and a gradient utilization strategy containing a high-temperature steam heat pump is provided; based on the heat energy specific enthalpy definition and the energy conservation principle, the energy coupling relation of different grades of the high-temperature steam heat pump is analyzed, and an energy grade conversion model of the high-temperature steam heat pump is constructed; based on electrothermal coupling characteristic of the high-temperature steam heat pump, constructing an optimized heat supply structure of a wind power-high-temperature steam heat pump heat supply system, and providing a wind power consumption scheduling strategy containing the high-temperature steam heat pump. According to the invention, gradient utilization of energy can be realized, and the wind power absorption capability of the system and the operation economy of the system are improved.