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809 results about "Regenerative system" patented technology

The regenerative system in a utility power plant is the go-between that allows operation of the turbine and boiler as a single unit.

System and method for carbon dioxide capture and sequestration

A method and a system capable of removing carbon dioxide directly from ambient air, and obtaining relatively pure CO2. The method comprises the steps of generating usable and process heat from a primary production process;
    • applying the process heat from said primary process to water to co-generate substantially saturated steam, alternately repeatedly exposing a sorbent to removal and to capture and regeneration system phases, wherein said sorbent is alternately exposed to a flow of ambient air during said removal phase, thereby enabling said sorbent to sorb, and therefore remove, carbon dioxide from said ambient air, and to a flow of the co-generated steam during the regeneration and capture phase, after the sorbent has adsorbed the carbon dioxide, thereby enabling regeneration of such sorbent, and the resultant capture in relatively pure form of the adsorbed carbon dioxide. This process can also be carried out in more efficient form by admixing with the air a minor amount of a flue gas or an effluent gas containing a higher concentration of carbon dioxide than exists in the atmosphere, most preferably following a pre-treatment. The carbon dioxide can be stored for further use, or sequestered permanently following the capture: The adsorbent is exposed to air at substantially ambient conditions and the adsorbent is exposed to the co-generated steam at a temperature in the range of not greater than about 130° C. The system provides the sorbent substrate and equipment for carrying out the above method, and provides for obtaining purified carbon dioxide for further use in agriculture and chemical processes, including manufacturing hydrocarbon fuels, or for permanent sequestration, as needed.
Owner:GLOBAL THERMOSTAT OPERATIONS LLC

Electric power generation system for electric vehicles

An electrical power generating system is described for generating electrical energy for an electric vehicle, via the motion of the non-drive wheels, which converts kinetic energy to electrical energy to replenish the batteries of said vehicle. The preferred version places one or more alternator / generator(s) at the non-driven wheels of the vehicle. Each alternator / generator is unitarily formed with respect to a mounting plate unitarily formed with respect to said mounting plate and said vehicle's suspension, and each alternator / generator includes a rotating field means integrated with the rotating mounting plate attached to the wheel and a stationary stator means stationarily attached to the frame through the suspension. Conventional electrical contact means attached to between said rotating field means and said stationary stator means for generating electrical current for said vehicle. Since the mechanical loading on the spindle bearing assemblies has been substantially increased, the bearing assemblies of the invention are of a heavy-duty design. That is, such bearing assemblies are large enough to handle the weight of said vehicle, including that of the alternator, as well as the weight of the wheel assembly, including tire and brakes. As the vehicle moves forward or backward, the rotational force applied to the vehicle's wheels will rotate the integrated rotating field means relative to the stationary stator means to produce alternating current (AC). Alternating current is converted to direct current (DC) either by a diode bridge, transformer, or controller, for distribution to the EV's electrical system. DC electricity is used to recharge storage batteries, provide electricity for the drive motor and operate the vehicle's electrical equipment. Thus, the regenerative system, does not add any additional load on the drive motor. Wheel bearing assemblies are usually used for all wheels on vehicles and the very nature of bearing assemblies are to reduce friction. By the incorporation of alternators into the wheel bearing assemblies, a vehicle can generate electricity when moving, without additional workload to the drive train; since wheel bearing assemblies are a necessary and integral part of any rolling vehicle and by their very nature reduce friction and resistance.
Owner:SMITH VINCENT A +2

Desulfurize flue gas waste heat recovery system used in fire coal electric generating set

The invention discloses a desulfurization flue gas waste heat recovery system for a coal-fired generator set, which comprises at least a gas-water heat exchanger for exchanging heat energy between gas state and liquid state, a flue gas inlet channel and a flue gas outlet channel respectively independently communicated with the gas-water heat exchanger, and a condensation water inlet pipeline and a condensation water outlet pipeline; a flue gas inlet of the gas-water heat exchanger is communicated with a rear flue gas channel of a boiler flue gas dust remover in the coal-fired generator set; a flue gas outlet of the gas-water heat exchanger is communicated with the flue gas inlet of a desulfurization absorption tower in a desulfurization system; a condensation water inlet and a condensation water outlet of the gas-water heat exchanger can be in sereies or parallel with at least a first-stage low-pressure heater of a regenerative system. The desulfurization flue gas waste heat recovery system provided in the invention has the advantages of the high waste heat utilization ratio, saving energy and water, the obvious discharge reducing benefit and the high comprehensive utilization degree of abandoned resources.
Owner:SHANGHAI WAIGAOQIAO NO 3 POWER GENERATION

Adjustable feed water heat regenerative system for turbo generator unit

The invention provides an adjustable feed water heat regenerative system for a turbo generator unit, which comprises a high pressure cylinder of a steam turbine, a final-stage extraction opening, a final-stage feed water heater, a steam extraction pipe and a regulating valve, wherein the final-stage extraction opening is additionally arranged on the high pressure cylinder; the steam extraction pressure of the final-stage extraction opening is much higher than the common highest extraction pressure; additionally extracted steam is used as a heat source of the final-stage feed water heater; the steam extraction pipe is connected with the final-stage extraction opening and the final-stage feed water heater; and the regulating valve is arranged on the steam extraction pipe. Part of steam which does work is guided to the feed water heater through the final-stage steam extraction pipe so as to further heat feed water of a boiler. The heat regenerative system provided by the invention is an elastic heat regenerative system. The temperature of the feed water can be maintained or changed under the variable load condition of the unit, so that the environmental friendliness, the economy and the safety of the unit are improved and the frequency modulation characteristic is perfected.
Owner:冯伟忠

Brown coal upgrading-power generation co-production system

The invention relates to a brown coal upgrading-power generation co-production system. The brown coal upgrading-power generation co-production system is characterized in that the system comprises a raw coal crusher and a flue gas drier which is connected with the raw coal crusher, a coal outlet of the flue gas drier is connected with a coal inlet of an intermediate wall type roller dryer, a gas inlet of the flue gas drier is connected with a flue gas outlet of a boiler through a pipeline, a gas outlet of the flue gas drier is connected with a flue gas treatment system, a heating unit pipe bundle of the intermediate wall type roller dryer is connected with a steam turbine through the pipeline, extracted steam from the steam turbine flows through the heating unit pipe bundle of the intermediate wall type roller dryer, dries raw coal in the intermediate wall type roller dryer and then is input to a heat regenerative system through the pipeline, the dried upgrading coal is output through a conveyer device, and tail gases output by the intermediate wall type roller dryer are used for preheating air supplied by a boiler in a tail gas air boiler through the pipeline. For the brown coal upgrading-power generation co-production system, flue gas discharged by the boiler is used for carrying out first-stage drying on the brown coal in the flue gas drier, and then extracted steam from the steam turbine is used for carrying out second-stage drying on the brown coal, thereby enabling the brown coal to be at a higher drying degree.
Owner:XI AN JIAOTONG UNIV

On-line monitoring method for variation of through-flow gap of steam turbine

An on-line monitoring method for the changing circulatation gap of the steam turbine is disclosed that comprises the steps: acquiring data, calculating the flux of the main steam, correcting parameters of the regenerative system, correcting the primary parameter and the end parameter, designing the parameter fitting in operating mode and diagnosing the augment of circulating gap. The main steam flux of the steam turbine can be obtained by computer from the main steam temperature and pressure of the main steam, the regenerative steam temperature and pressure, the vacuum condenser, the temperature and pressure in each of the regenerative exhaust points, the water temperature of the ports, the drain temperature and the water flux of condensate, the flux value of the cooling water of the superheater and the reheater when the steam turbine is running. Based on the heat balance diagram in the operating mode of the steam turbine, the temperature, pressure and the internal efficiency ratio of the regenerative ports in the condition of the main steam are contrasted with the real temperature, pressure and the internal efficiency ratio of the regenerative ports to realize the on-line monitoring for the changing circulatation gap of the steam turbine. The method is scientific to realize the automatical on-line monitoring and exact fault diagnosis.
Owner:NORTHEAST DIANLI UNIVERSITY

DPF (diesel particulate filter) initiative regeneration system with combustor

The invention discloses a DPF (diesel particulate filter) initiative regeneration system with a combustor. The DPF initiative regeneration system is characterized in that the combustor and an engine of the system are respectively driven by individual oil pumps via individual oil passages, an exhaust pipe of the combustor is connected to an exhaust pipe of the engine, a diesel oxidation catalyst and a diesel particulate filter are sequentially serially connected onto the exhaust pipe of the engine, temperature sensors are respectively arranged at a gas inlet end of the diesel oxidation catalyst and a gas inlet end of the diesel particulate filter, and a pressure difference sensor is serially connected to the gas inlet end and a gas outlet end of the diesel particulate filter; oil injection of the oil pump of the combustor and ignition of an electric heater plug in the combustor can be controlled by an electronic control unit (ECU) according to collected temperature signals and pressure signals, accordingly, high-temperature gas can be generated and is gathered in the exhaust pipe of the engine to heat waste gas in the exhaust pipe, the temperature of the heated waste gas further can be increased by means of oxidation of the DOC (diesel oxidation catalyst), and particulates in the DPF can be regenerated. The DPF initiative regeneration system has the advantages that the combustor can work at any time without being constrained by starting and stopping of vehicles and other working conditions, and accordingly the particulate regeneration reliability and universality can be guaranteed.
Owner:SHANDONG UNIV

Method for saving energy and producing more propylene in absorption-stabilization system by catalytic cracking

ActiveCN101659876AReduce olefin contentTo achieve the goal of producing more propyleneOrganic chemistryCatalytic crackingGasolineEngineering
The invention relates to a method for saving energy and producing more propylene in an absorption-stabilization system by catalytic cracking. A liquid phase of a vapor-liquid equilibrium tank exchanges heat with stable gasoline on the bottom of a desorber T305 through a heat exchanger E301, exchanges heat with stable gasoline on the bottom of a stabilization tower T304 through a heat exchanger E302, and then enters a desorber T302; deethanized gasoline on the bottom of the desorber T302 exchanges heat with the stable gasoline on the bottom of a stabilization tower T304 through a heat exchanger E305, and then enters the stabilization tower T304; the stable gasoline on the bottom of the stabilization tower T304 is cooled by the heat exchanger E305 and the heat exchanger E302, a part of the stable gasoline enters a reaction-regeneration system for recycling, the rest stable gasoline is cooled by a heat exchanger E303, and a part of the rest stable gasoline enters an absorption tower T301; and the stable gasoline on the bottom of the desorber T305 is subjected to two-stage cooling of the heat exchanger E301 and a heat exchanger E304, serves as a stable gasoline product and is discharged from the device. The thermal load is reduced by 15.8 to 17.7 percent; and the alkene content in the stable gasoline product is reduced by 34.3 percent.
Owner:PETROCHINA CO LTD

Coal-fired power plant flue gas heat regenerative system and energy-saving water-saving ultra-clean discharging method

The invention discloses a coal-fired power plant flue gas heat regenerative system and an energy-saving water-saving ultra-clean discharging method. The temperature of the flue gas is reduced to about 90-110 DEG.C through a low-temperature coal economizer, and the recycled flue gas heat heats primary and secondary wind entering a boiler through a steam air heaters, so that the first stage of heat regenerative cycles is achieved. The temperature of the flue gas at the outlet of a desulfurization tower is reduced to 30-40 DEG.C through a vacuum flash evaporation and solidification device and a low-temperature heat pump heat exchange device, and a part of water vapor of the flue gas is condensed and collected, so that water is saved. The low-temperature heat pump heat exchange device absorbs the latent heat released in flue gas sensible heat and condensation processes, and dry as-fired coal and air are heated, so that the second stage of heat regenerative cycles is achieved. A boiler slag discharge system recycles the waste heat of heat slag, and the as-fired coal is heated, so that the third stage of heat regenerative cycles is achieved. When the waste heat is not used up, the remained waste heat can be utilized, so that energy is saved. Low-temperature desulphurization slurry led out from the vacuum flash evaporation and solidification device is injected into the desulfurization tower, so that the desulphurization efficiency is improved, and an ultra-clean discharging objective is achieved.
Owner:SHANDONG UNIV +2
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