1040results about How to "To achieve the purpose of energy saving and environmental protection" patented technology

The invention discloses a battery management system with balanced charge and discharge functions and a control method thereof, relating to a battery management system of a dynamic battery pack. The battery management system is structurally characterized in that a central processing unit (CPU) control unit is connected with a battery and relay set so as to detect the working condition of the battery and relay set; the CPU control unit and a balanced discharge module are successively connected with the battery and relay set so as to control the balanced discharge of the battery and the relay set; the CPU control unit, a balanced charge module and the battery and the relay set are successively connected so as to control the balanced charge of the battery and relay set; and a super-capacitor is connected with the balanced discharge module so as to store the discharge energy of the battery and relay set for supplying power for the battery management system. The battery management system can be widely applied to management of various battery packs such as a lead-acid battery, a lithium battery, a nickel-metal hydride battery and the like, supports the expansion of a lower computer, and can conveniently detect and monitor the conditions of multiple batteries.

The invention relates to the technical field of illuminating devices, and particularly to an automatic adjusting system for street lamp brightness based on vision technology. Each streetlamp brightness adjusting subsystem comprises a plurality of street lamps, a camera and a remote control station. The plurality of street lamps share one camera and one remote control station. Configuration of one camera and one remote control station for each street lamp is not required, thereby greatly saving hardware cost. The automatic adjusting system settles the problems of a requirement for the cameras which are mounted next to each street lamp and configuration of a subsequent video processing and analyzing module, isolation of the control module of each street lamp, and relatively high hardware equipment upgrading cost in mounting the device in a large range.

The synthesis method of methyl ethyl carbonate belongs to the technical field of organic compounds synthesized by ester exchange. Dimethyl carbonate and diethyl carbonate, or dimethyl carbonate and ethanol are used as raw materials to perform ester exchange in the presence of catalyst. The reaction mode comprises two kinds of fixed bed continuous reaction and kettle-type reaction. The catalyst issolid alkali catalyst in which the carrier is active carbon, carbon molecular sieve or mesoporous carbon and the active component is Na2O, K2O, MgO, CaO, SrO or BaO. In the process of fixed bed continuous synthesis, the catalyst is stable without inactivation after long-term use, thereby retaining the high yield of the methyl ethyl carbonate, simplifying the production process, and achieving environmental friendliness and energy conservation. In the kettle-type reaction, the catalytic efficiency is high, the catalyst can be recovered by simple filtering and re-sintering, and the target product can be obtained in short time with high yield.

The invention discloses a system and method to produce furfural with agricultural wastes, which is characterized by the following: choosing two-step method; comprising hydrolysis system and dehydration distilling system; setting the hydrolysis system as N grade hydrolysis autoclave with end-to-end; proceeding continuous hydrolysis for the agricultural wastes; generating pentose solution; setting the dehydration distilling system as dehydration distilling unit and dehydration reclaiming unit; dewatering and distilling for the pentose solution with the dehydration distilling unit; getting furfural steam; setting the dehydration reclaiming unit as at least one grade dewatering reactor; further-dewatering; generating furfural steam; sending into dehydration distilling tower; distilling continuously; sending the waste water from the dehydration reclaiming unit back to dehydration system; realizing zero discharge for waste water. This invention possesses high productivity, low energy consumption and warm reacting condition, which can be used as raw material to produce alcohol.

A manufacturing method of nodulizers with small chemical composition segregation and low oxidation loss is characterized in that the first part is an extruded magnesium treatment device which reacts under the condition of being filled with inert gases or carbon dioxide, thus effectively controlling the reaction time of the magnesium metal and superalloy liquid and conducing to the magnesium metal to form Mg2Si; the second part is a combined molten pool for pouring nodulizer alloy liquid; the combined molten pool and the pouring basin can ensure that the nodulizer alloy liquid rapidly fills the die cavity of the molten pool in a possibly short time and that the nodulizer alloy liquid of the pouring type die cavity can congeal at the same time. The alloy liquid is evenly cooled in a closed die cavity, thereby overcoming the oxidation and segregation of the upper surface of the nodulizer alloy liquid. The product quality is stable and the manufacturing cost is obviously lower than that of the nodulizer produced by the secondary smelting and remelting method. The method cancels the secondary smelting process of the nodulizers of rare earth-Mg-Si-Fe, achieves the purpose of energy-saving and environment protection and eliminates environmental pollution.

The invention relates to a UV printing and coating process for a metal lettering cover, comprising the following steps: (1) plate making; (2), surface treatment for a base material; (3) UV printing; (4) continuous curing of a UV light cluster; (5) coating on a printed pattern to protect the printed pattern; (6) inside coating, wherein epoxy-phenolic coating is adopted for coating; (7) spraying wax, wherein wax is sprayed on the front face and back face of the printed and coated base material. In the UV printing and coating process, pretreatment is carried out on the surface of the base material through a flame treatment machine so that quality defects caused by abrasion of the surface of the material are avoided, and better adhesive force between UV printing ink and the surface of the base material is ensured. In addition, the flame treatment machine and a material transporting part of a UV metal printing machine are integrated so as to form a processing pattern of on-line continuous base material surface treatment and printing production and avoid treatment of the surface of the base material by a drying house. Therefore, the production processes are reduced, the production efficiency is improved, consumption of natural gas energy and discharge of waste gas are greatly reduced, and the purposes of energy saving and environment protection are achieved.

The invention discloses a novel biomass granular fuel, and belongs to the field of biomass granular fuels. The novel biomass granular fuel comprises the following three raw materials by mass percent: 20-60 percent of wood chips, 20-45 percent of rice hull and 10-40 percent of coal gangue powder. According to the proportion, the wood chips and the rice hull are pulverized, the coal gangue powder is added and then the mixture is uniformly mixed; and the mixture is subjected to drying, compressing, screening, cooling and packaging procedures to prepare the biomass granular fuel. According to the invention, the novel biomass granular fuel can solve the problems of single raw material source, short fuel burning time, incomplete burning and the like of the conventional biomass granular fuel and has the advantages that the raw material sources are wider, the energy saving and environmental protection purposes are achieved, the fuel burning time is prolonged, and the heating value of the biomass granular fuel is increased.

The invention discloses a low-nitrogen burner. According to the technical scheme, the low-nitrogen burner is characterized in that a mixer of the low-nitrogen burner comprises a barrel and a gas inlet, wherein an inner barrel and burning-supporting air swirling pieces arranged on the inner wall of the inner barrel are arranged at the gas inlet front end inside the barrel; an air inlet barrel located on the back side of the burning-supporting air swirling pieces in the air inlet direction is arranged at one end, close to the gas inlet back side, of the inner barrel; the air inlet barrel, the inner barrel and the inner wall of the barrel are connected in a sealed manner to form a gas sub-cavity; inclined flow guiding holes are formed in the air inlet barrel; a primary swirling impeller is arranged in the position, located on the air inlet back side of the inner barrel, inside the barrel; and the primary swirling impeller and the air inlet barrel form a primary mixing chamber. Through the arrangement, gas is ejected via the gas sub-cavity from the inclined flow guiding holes, the ejected gas can form multiple single, short and powerful gas flows, air flows sent by a fan pass through the burning-supporting air swirling pieces to form short and powerful rotating air flows, and the rotating air flows are circular and impact the multiple single gas flows, so that the air and the gas of the primary mixed gas reach the air-fuel ratio in the complete burning theory.

The invention discloses an ultrathin luminous ceiling. A super bright LED or other fine light sources, such as CCFLs (Cold Cathode Fluorescent Lamps), EFLs (External Electrode Fluorescent Lamps), fluorescent lamps and the like, are adopted as light source appliances, and the light guide plate of a dot reflection layer diffuses light rays evenly, thereby a linear light source illumination mode is converted into an area light source illumination mode and the change of the basic function of the ceiling is integrally realized. By a new technology and a new conception, the ceiling has the advantages of novel component materials, energy saving and environmental protection; and in addition, compared with the traditional ceilings on market, the ceiling has the characteristics of thinness, brightnesss, evenness and attractiveness.

The invention provides a production method of a polyoxazolidone laminated board, comprising the following steps: reacting diisocyanate with epoxide resin by taking imidazole compounds as catalyst for producing polyoxazolidon resin during the gradual rise of temperature; and then producing the polyoxazolidone laminated board by using the polyoxazolidon resin. The polyoxazolidone laminated board the end of which is sealed with isocyanate has better mechanical strength, favorable heat resistance and high glass transition temperature above 155 DEG C; and when in use at 180 DEG C or 200 DEG C, the mechanical property and electrical propertye of the polyoxazolidone laminated board are over 70 percent.

The invention relates to a separation process for magnetic red mixed ore based on iron material disseminated particle size treatment. The process comprises the operation of feeding the mixed ore withthe grade of 27%-29% and with magnetite as a main raw material into first-section closed circuit ore grinding operation to obtain a primary grading overflow product, and is characterized by further comprising first-section weak magnetic and strong magnetic operation, fine screening operation, first-section magnetic separation and first-section washing magnetic separation operation, second-sectionclosed circuits ore grinding operation, second-section weak magnetic strong magnetic operation, second-section magnetic separation and washing magnetic separation operation, third-section closed circuit ore grinding, third-section weak magnetic strong magnetic operation and reverse flotation operation. The final concentrate with the grade of 66%-66.5% is obtained through the operation. Compared with the prior art, the separation process has the advantages that 1) an efficient separation process which is characterized in that the concentrate can be obtained once dissociation is achieved and segmented ore grinding, segmented concentrate taking and segmented tailings discharging are achieved is provided for the magnetic red mixed ore with the non-uniform iron material disseminated particle sizes, so that overgrinding is reduced, and energy conservation and consumption reduction are achieved; 2) magnetic separation equipment is adopted for upgrading, and three sections of ore grinding is carried out by adopting vertical mills; and 3) the process is simple in structure, free of middling circulation, easy to implement on site and easy to produce and manage.

The invention discloses a novel fume hood. The fume hood comprises a body, wherein the body is provided with an electric air valve; a lifting safety sliding door is arranged on the front of the body; and a face velocity sensor is also arranged on the front of the body. The fume hood also comprises a central control system electrically connected with the electric air valve, the safety sliding door and the face velocity sensor, wherein the face velocity sensor monitors pressure changes in the body after the safety sliding door is lifted, converts the values of pressure changes in the body into electrical signals and transmits the electrical signals to the central control system; and the opening angle of the electric air valve and lifting of the safety sliding door are controlled by the central control system. The fume hood has the following beneficial effects that: energy consumption and air loss in the laboratory are greatly reduced so that a relatively stable environment is maintained for experiments, thus achieving the aims of energy conservation and environmental protection and greatly improving the comfort level and environmental protection property of the laboratory.

The invention discloses an intelligent control method for a fresh air handling unit. The control method comprises the following steps: (1) monitoring indoor and outdoor temperature values, an indoor CO2 concentration value and a PM2.5 concentration value in real time; and (2) firstly, adjusting the openness of a fresh air valve according to the monitored indoor and outdoor temperature values and an indoor temperature priority algorithm, and when the outdoor temperature or indoor temperature is in a preset range, calculating and executing the openness of the fresh air valve according to the monitored CO2 concentration value, the PM2.5 concentration value and an air quality balance algorithm. The invention further provides the fresh air handling unit applying the control method. By the adoption of the indoor temperature priority algorithm and the air quality balance algorithm, the indoor temperature can be guaranteed preferentially under any working condition, and then the indoor PM2.5 concentration and the indoor CO2 concentration are effectively controlled, so that the environmental quality of air in a classroom is guaranteed, and the comfortable sensation of a student to a learning environment is enhanced; and the operation duration of the fresh air handling unit is preset according to a class period and background noise in the classroom, so that no influence on the class teaching is caused during the operation of the fresh air handling unit, and a good learning environment is supplied to the student.

The invention provides a heat dissipation system for an oven and the electric oven. The heat dissipation system for the oven comprises an air inlet, an air channel, an air outlet and a fan. The air inlet comprises an oven body air inlet and a door body air inlet, the oven body air inlet is formed in the front portion of the oven, and the door body air inlet is formed in the bottom of an oven door body. The air channel comprises a door body air channel, a first air channel and a second air channel, the door body air channel is communicated with the door body air inlet, and the first air channel is communicated with the oven body air inlet and the door body air channel. The air outlet is formed in the rear portion of the oven and is communicated with the second air channel. A fan exhausts air inside the first air channel into the second air channel. According to the technical scheme, users are effectively prevented from being scalded by the hot air exhausted from the air outlet, and the safety of the oven is improved.

An automatic supplying system of solar-heated drinking water is composed of a water purifying system, a solar heating system, a hot water storing system and an electric automatic control system. The basic theory is that firstly water is performed with purifying treatment and then heated by solar energy; in cloudy days, the water is heated by low-ebb power in servo mode; the electric automatic control system is assembled for achieving intellectualization; and the automatic supplying system is managed in automation mode. The automatic supplying system can supply drinking water quantificationally at regular time, requires no specially-assigned person for management, saves labor power, organically combines solar energy with low-ebb power with intelligent management aided, belongs to energy-saving environment-friendly zero-discharging programs, saves resources, can replace all the existing boiler rooms of enterprises and public institutions, simultaneously can be integrated with buildings to achieve water supplying of washing, bathing and drinking of residents and warming in winter.

The invention relates to a double-effect Roots-type MVR (Mechanical Vapor Recompression) falling film evaporation system. The double-effect Roots-type MVR falling film evaporation system comprises double-effect falling film evaporators and a water vapor recompression system, wherein the double-effect falling film evaporators comprise a primary-effect evaporator and a secondary-effect evaporator which respectively comprises a heating chamber and a separation chamber; the water vapor recompression system is mainly formed by a Roots-type MVR compressor; a vapor outlet of a separation chamber of the secondary-effect evaporator is connected with a vapor inlet of the water vapor compressor, and a vapor outlet of the water vapor compressor is connected with a vapor inlet of the primary-effect evaporator. According to the double-effect Roots-type MVR falling film evaporation system, by recycling low-grade waste heat of the primary-effect evaporator and the secondary-effect evaporator and reutilizing all latent heat of secondary vapor generated in a solution evaporation process, primary energy is saved, the energy consumption in a solution evaporation process is greatly reduced, and the environmental pollution is reduced. The double-effect Roots-type MVR falling film evaporation system is simple in structure, small in occupied space and high in automation degree, only requires a small amount of vapor when being started, does not require live vapor after being started, is particularly suitable for heat-sensitive materials, has a wide application range and can be used on occasions of evaporation concentration, evaporation crystallization and low-temperature evaporation.