39results about How to "Realize the goal of energy saving" patented technology

The invention discloses a heating cable, in particular a carbon fiber expanding and heating cable for oil extraction of heavy oil and high pure-point oil. A structure of the carbon fiber expanding and heating cable for oil extraction is that: a core part consists of a sealing layer and an isolation expansion chamber arranged in the sealing layer; expansion fillers are filled in the isolation expansion chamber; and the sealing layer is embedded with a carbon fiber heating line, and outside of the sealing layer is wrapped with a layer of protection layer of the same material as that of the sealing layer. The invention has the advantages that: 1, the electro-thermal conversion efficiency of the heating cable is high, and more heat can be generated by consuming the same electric energy; 2, the heating cable expands under heating, so that the heat conduction capacity of the heating cable and a hollow sucker rod can be improved, the insulation damage caused by over temperature in the interior of the heating cable can be prevented, and the service life of the heating cable can be prolonged; and 3, the cable has a light weight, which is about half of the weight of the conventional medium-frequency heating cable, and the energy-saving effect is very remarkable.

The invention discloses an argon oxygen refining low-carbon ferrochromium process endpoint carbon content and temperature control method. In the method, molten iron crudely refined in an electric furnace is poured into an AOD (Argon Oxygen Decarburization) furnace, oxygen is blown from a top gun for quick decarburization, when carbon content is reduced to a critical value, oxygen and argon mixed gas is blown from a bottom gun to carry out decarburization reaction, and finally pure Ar gas is blown for several minutes to make residual oxygen in the molten iron continue to react with carbon so as to further reduce the carbon content; when the carbon content reaches a preset target, ferrosilicon is added under the stirring of the Ar gas to carry out reduction; and on the basis of the thoroughanalysis of a smelting process mechanism, partial mathematical models in the low-carbon ferrochromium production process are established, and based on the models, an inference control method is adopted to accurately control the carbon content and the temperature of a molten bath, the hit rate of an endpoint is greatly improved, the output is increased, the quality of iron alloy is improved, the consumption of raw materials and energy is reduced, the production cost is reduced, and the economic benefits are increased.

The invention discloses an air conditioner system based on solar energy and underground cold water. The air conditioner system based on solar energy and underground cold water comprises an underground cold water circulating system, a solar water heater circulating system and an indoor heat exchange system. According to the underground cold water circulating system, low-temperature underground water is pumped to a heat preservation water tank through a make-up pump, stored and then pumped to a top plate heat exchange device of the indoor heat exchange system through a circulating water pump to exchange heat so as to reduce the indoor temperature; and according to the solar water heater circulating system, the water temperature is increased through solar energy, the water is conveyed into a heat storage water tank and stored, then the water is conveyed into a heat exchange device through a circulating water pump, the hot water obtained through heat exchange is supplied to a floor radiation heat exchange device to increase the indoor temperature, and meanwhile the hot water in the heat storage water tank can also be used as domestic hot water. According to a solar fresh air cooling and dehumidifying system, a solar cell panel generates and supplies electricity to a semiconductor refrigerating chip set for providing electricity for cooling a water source, the indoor temperature is lowered through the cooled low-temperature water by means of a fresh air ventilator, and the humidity is adjusted. The air conditioner system is simple in structure, renewable energy sources are reasonably used, the water resources are recycled, and the cost is saved.

The invention discloses a pressing plate for a scraper conveyor. The pressing plate comprises an arbor, and a wear resisting layer wrapped on the outer surface of the arbor for forming a pressing plate body; a bonding layer is arranged between the arbor and the wear resisting layer; positioning through holes are spaced in the arbor; a transverse gap is formed in the wear resisting layer above the arbor; and the wear resisting layer parts on two sides of the transverse gap are upwards projected to form a limiting table. The arbor serves as a support skeleton of the pressing plate, so that the strength and the toughness of the pressing plate satisfy the working demands; the wear resisting layer serves as a main body of the pressing plate, so that the pressing plate has needed strength for normal work, meanwhile, the wear resistance is greatly improved, the weight is obviously lowered compared with metal, the weight of the pressing plate is reduced, the total weight of a scraper chain is reduced, the idle loss of the scrape conveyor is reduced, the energy saving target is realized, meanwhile, the phenomenon of crack or even rupture caused by residual stress of heat treatment is prevented, and the overall life is largely prolonged.