73 results about "Energy engineering" patented technology

The invention provides a power generation and hydrogen production combined circulating system based on alkali metal thermoelectric conversion, belonging to the field of energy power engineering. The combined circulating system comprises an alkali metal thermoelectric conversion subsystem capable of directly converting thermal energy into electric energy, and a methanol steam reforming hydrogen production subsystem capable of converting residual heat into chemical energy, wherein the alkali metal thermoelectric conversion subsystem mainly comprises an evaporator, a high pressure sodium vapor pipeline, an alkali metal thermoelectric converter, a low pressure sodium vapor pipeline and a condenser; and the methanol steam reforming hydrogen production subsystem mainly comprises a reactor, a preheater, a condensation absorber, a vaporization superheater, a conduction oil pump, a methanol pump, a demineralization water pump and a pressure swing adsorption separating device. Compared with the conventional energy system, the system is a multifunctional energy system with multi-energy (thermal energy and methanol) input and multi-product (electric power and hydrogen) output, not only can realize thermoelectric direct conversion of the thermal energy, but also can realize thermal chemical utilization of the residual heat.

The invention belongs to the technical field of equipment manufacture in energy engineering and relates to a preparation device of charcoal with biomass as a raw material. The preparation device belongs to a vertical kiln, which can realize continuous production and has a multi-level chain belt structure. Multilevel fire grates of the preparation device are classified up and down, and pyrolysis gas is introduced to a combustion chamber arranged outside a vertical furnace and is used for firing and releasing heat in a high-temperature environment of gas combustion; and the cascade utilization of heat energy of heat source smoke is realized when the heat source smoke flows by charcoal preparation fuel on each level of heated fire grate, and inhalable particles, tar particles and the like contained in the heat source smoke are filtered by each fuel layer. A tunnel charcoal burner of the vertical furnace has higher thermal efficiency, meets the requirement of environment friendliness, is adjustable in production capacity and can replace small-and-medium-sized periodic-production charcoal burners and large-scale tunnel kilns, thus having good application prospect and environmental benefits; and according to the preparation device, the integral structure is reasonable, the operation and use are simple, the charcoal firing process is scientific, the energy conservation property is good, the quality of fired charcoal is good, the performance is good, and the economic benefits are obvious.

The invention belongs to the technical field of energy source engineering and relates to a solution temperature and humidity adjustment air treatment system, which is a high-efficiency and energy-saving system that combines a heat and mass transfer system and heat pipe energy conservation and heat pump energy conservation technology to realize the temperature and humidity adjustment air treatment. The system is an integrated solution temperature and humidity adjustment air treatment system formed by organically communicating an air circulation subsystem, an N-stage solution treatment subsystem, a solution flowing and storing subsystem, an M-stage solution regeneration subsystem, a P-stage heat pipe heat return subsystem, a heat pump cold or heat supply subsystem, an L(or L+1)-stage air cooling tower subsystem, a cooling water circular flow subsystem, a temperature control subsystem and a humidity control subsystem with a low-temperature auxiliary heat source, wherein N is more than or equal to 1 and less than or equal to 20; and N is equal to M, P and L. The system has the advantages of mineral and energy conservation, slight pollution, novel and simple structure, combined temperature and humidity control process, small dehumidification module volume, large mass transfer driving force, high energy utilization rate, energy conservation, high heat pump efficiency, wide application range and the like.

The invention belongs to the technical field of energy engineering, and relates to precoated sand hot-process regeneration equipment mainly utilizing a vertical fluidized bed furnace and a precoated sand hot-process regeneration method. The precoated sand hot-process regeneration equipment comprises a vertical fluidized bed furnace, a charging hopper, a nozzle for oppositely spraying coal gas, a flue, a smoke discharging pipeline, a dividing wall cooler and an air preheater, wherein the dividing wall cooler is arranged below the vertical fluidized bed furnace, the top end of the dividing wall cooler is connected with the vertical fluidized bed furnace through a sand falling pipe, the air inlet of the dividing wall cooler is connected with an air blower, the air outlet of the dividing wall cooler is connected with the air preheater through a hot air pipe I, the inlet of an air conveying pipe of the air preheater is communicated with the hot air pipe I, the outlet of the air conveying pipe is communicated with an air chamber through a hot air pipe II, and the flue is connected with the smoke discharging pipeline through a cavity of the air preheater. The precoated sand hot-process regeneration method comprises the steps: starting, feeding, and stabilizing. The precoated sand hot-process regeneration equipment is high in energy utilization rate, perfect in regeneration, simple in operation, and energy-saving and environment-friendly.

The invention relates to a method for producing ethyl alcohol and yeast superoxide dismutase by using juice of stems of sweet sorghum, and belongs to the technical field of the biomaterial energy engineering. The invention has the following steps: firstly, the raw material of the juice of the stems of the sweet sorghum and fermentation auxiliary materials are taken to be sterilized and cooled forstandup; secondly, saccharomyces cervisiae is taken to be augmented stage by stage and cultured until the cell number per milliliter achieves above 1.0*10<8>; thirdly, the juice of the stems of the sweet sorghum and the fermentation auxiliary materials are mixed, and filled with the saccharomyces cerivisiae to perform ethyl alcohol fermentation; fourthly, after the ethyl alcohol fermentation is finished, refrigerated centrifugation to the fermentation liquid is performed, the supernatant fluid is taken to be used for distilling and extracting the ethyl alcohol, and the thallus is used for extracting the SOD; fifthly, after the collected thallus is activated, the cell wall of microzyme is damaged, and is heat insulated and extracted by phosphate buffer solution, then solid liquid separation is performed, and the obtained clear liquid is yeast SOD extracting solution. The yield rate of the ethyl alcohol can achieve 90.3 to 97.03 percent, and the output of the superoxide dismutase in each liter of fermentation liquid is 3.64*10<4>U to 6.95*10<4>U.

The invention relates to a desulfurization method and a desulfurization device, and specifically relates to a wet-process ferric salt membrane-electrolysis regenerated biogas desulfurization method and device thereof. The wet-process ferric salt membrane-electrolysis regenerated biogas desulfurization device comprises an absorption tower, wherein a waste liquid outlet of the absorption tower is communicated with a water inlet of a separating device by a recycling tank; a water outlet of the separating device is connected with a water inlet of a diaphragm electrolytic cell by a buffer tank; and a water outlet of the diaphragm electrolytic cell is connected with the water inlet of the absorption tower by the liquid storage tank. Absorption liquid which absorbs hydrogen sulfide can be recycled after being treated by the separating device and the diaphragm electrolytic cell. The whole process can be normally operated without an extra heat source under a normal temperature condition, and products are elemental sulfur sludge as well as alkali and hydrogen gas which are produced by an electrolysis regeneration process, and are free of secondary pollution. The device not only can be manufactured into a large device, but also can be manufactured into a small device, so that no matter large-scale biogas energy resource engineering or small-scale biogas energy resource engineering can adopt the desulfurization way.

The invention discloses an ultrasonic excited roof (coal) caving apparatus and a method thereof, and belongs to the field of energy engineering. Advance boreholes are constructed in a roof (roof coal) in front of a working surface at intervals by using a drilling machine, an ultrasonic excitation device is placed in one of the boreholes, is fixed, and is used to carry out ultrasonic excited cracking on the selected borehole in order to make the roof and the roof coal have cracks, destroy the integrity of coal rocks and reduce the strength, so the weighting step and the strength of the roof are reduced, sudden large-area weighting is prevented, and the safety is guaranteed; and the roof coal is effectively pre-cracked, the coal caving is smooth, and the roof coal recovery rate is high. The method provides a new technical means for the hard roof (coal) mining, and has the advantages of simplicity, convenience in construction, safety and reliability, and good effect.

The invention provides a sand filling bag for scour prevention and ballasting of deep sea wind-driven generator foundation protection, and particularly relates to the technical field of ocean engineering and marine new energy engineering. The sand filling bag comprises a wind-driven generator foundation structure, wherein the bottom of the wind-driven generator foundation structure is located on the seabed surface; the end of the wind-driven generator foundation structure is exposed out of the sea level; the wind-driven generator foundation structure comprises a plurality of annularly-arrangedfoundation piles; the foundation piles are sequentially connected in series; a main rod is arranged on the foundation piles; supporting rods are connected through reinforcing ribs; a supporting structure is arranged on the peripheries of the foundation piles, a plurality of ballasting sand bags are arranged at the upper ends of the foundation piles, and a plurality of sand filling bags are arranged on the supporting structure; the main rod is a hollow pipe, a plurality of sand filling branch pipes are arranged at the lower end of the main rod, and the main rod and the sand filling bags communicate through the sand filling branch pipes; and a sand filling pipe is arranged at the upper end of the main rod, the main rod and a slurry pump are connected through the sand filling pipe, and the slurry pump is arranged on a sand filling ship. By means of the sand filling bag, the sand filling bags can be rapidly and accurately installed in place, and filling construction is achieved.

The invention relates to a system and method for pumped-storage power generation by using an underground goaf and a chamber, and belongs to the technical field of mining and energy engineering. The system for pumped-storage power generation comprises a surface shaft tower, a vertical shaft, a surface transmission line, a surface power transmission station, a power transmission line, a power generation chamber, an upper water storage space and a lower water storage space; the power transmission line is arranged in the vertical shaft, and the power transmission terminal of a hydro-generator anda water pump are both electrically connected with the surface power transmission station through the power transmission line and the surface transmission line in sequence; and the surface power transmission station is electrically connected with a power grid through a transmission cable. According to the system, goafs, waste chambers and tunnels at different altitude difference positions of underground metal mines are used as water storage spaces; water in a lower goaf is pumped into an upper goaf for storage by using extra (waste) electrical energy of an external power grid in the off-peak period of electricity utilization; and the water in the upper goaf is discharged to the lower goaf for power generation in the peak period of electricity utilization, so that the gap of the external power grid is supplemented.