30results about How to "Improve energy quality" patented technology

This invention disclosed is a comprehensive power quality controller for substation in the electric power system and includes a Thyristor Controlled Reactor (TCR), pure tuned passive filter Z_f, additional inductor L active power filter (APF), and a coupling transformer. The Thyristor Controlled Reactor (TCR) provides inductive reactive power and controls the active power filter (APF) as the current source, it is connected with the additional inductor L_a in parallel via the coupling transformer, then connected to the passive filter Z_f in serial to consist a hybrid power filter system, which is connected to the power grid via the circuit breaker or thyristor. The comprehensive filter system provides required capacitive reactive power and filters the harmonic produced by the load and TCR system itself. Because the capacity of the active power filter (APF) is very small which is less than 1% of the harmonic source capacity, so it is a solution with low cost but simple and reliable control mode. It can suppress influence on the passive filter by the “background harmonic” of the substation and prevent the resonance occurred between the passive filter and power grid impedance.

The invention discloses an afterheat recovery system and an afterheat recovery method of dry granulating liquid slag. The system comprises a granulating cabin, a moving bed and an afterheat recovery system, the inner surface of the granulating cabin is provided with a granulating cabin water cooling wall, the center of the top of the granulating cabin is provided with a slag pipe, the slag pipe extends into the granulating cabin, the lower part of the tail end of the slag pipe is provided with a centrifugal granulator, the centrifugal granulator is connected with a motor arranged at the lower part of the centrifugal granulator, the lateral side of the centrifugal granulator is provided with an air supply pipeline, an annular air opening is formed between the centrifugal granulator and the air supply pipeline, the lower part of the granulating cabin is provided with the moving bed, the inner surface of the moving bed is provided with a moving bed water cooling wall, the top of the moving bed is provided with an air outlet, the bottom of the moving bed is provided with a slag discharge device, an air inlet device is arranged above the slag discharge device, the afterheat recovery system comprises a primary dust remover, an afterheat boiler, a secondary dust remover, an exhaust fan and a chimney which are connected in sequence, and the primary dust remover is connected with the air outlet arranged at the top of the moving bed. The system and the method effectively solve the problems of heat recovery and furnace slag granulation of equipment such as a blast furnace.

The invention discloses a sub-control phase-change heat exchange system based on grading combination heat exchange. The sub-control phase-change heat exchange system comprises a flue, an air channel, an air pre-heater, an external water pipeline, a steam supply valve of a low-temperature water heater, the low-temperature water heater, a water inlet valve of the low-temperature water heater, a steam-liquid heat exchanger, a steam supply valve of the steam-liquid heat exchanger, a steam supply valve of an air channel heat exchanger, an external steam supply valve of the air channel heat exchanger, a main water draining pipeline, the air channel heat exchanger, a water tank, a water pump, a water inlet valve of a flue heat exchanger, the flue heat exchanger, and a steam outlet valve of the flue heat exchanger. According to the sub-control phase-change heat exchange system, heat release exchangers which utilize the waste heat of recycled flue gas are arranged in a grading combination mode; according to different situations such as ambient air temperature, operating conditions and the like, the waste heat can be utilized to heat boiler supplied air, condensed water on the side of a steam turbine and the like in a combination mode; meanwhile, the temperature of the condensed water is improved through grading heating, higher energy quality is obtained, and the optimal economic benefit of recycling the waste heat is achieved.

The invention discloses a heat pump cooling/heating system of a solar photovoltaic power generation system, comprising a solar photovoltaic panel and a working medium evaporator arranged below the solar photovoltaic panel. The working medium evaporator is sequentially connected with a three-way reversing valve, a working medium compressor, a working medium condenser and an electronic expansion valve to form a circulation loop. A working medium thermometer is arranged on the working medium evaporator. A hot water thermometer is arranged inside the working medium condenser. The working medium thermometer, the hot water thermometer and the electronic expansion valve are connected with a main control computer. While that the solar photovoltaic system works at optimal temperature is ensured, cooled heat can be recycled for heating, the solar energy utilization rate of the original system is improved greatly, the operation mode of solar photovoltaic power generation operation all the year is optimized, and the utilization rate of solar energy throughout the year is maximized. Moreover, the quality of energy can be improved through use of heat pumps, cooled heat at low temperature can be improved to a higher quality level to meet the requirements of life and heating temperature, and low-quality heat is recycled all year round.

The invention relates to a seawater desalination system driven by combination of solar energy and ocean thermal energy. The seawater desalination system comprises a heat source circulating loop, a power circulating loop, a cold source circulating loop and a seawater desalination loop. The power circulating loop comprises an organic turbine utilizing cycle working fluids to act. The heat source circulating loop comprises a warm water pump for pumping warm seawater. The output end of the warm water pump supplies the heat source for evaporating cycle working fluids through an evaporator. The cold source circulating loop comprises a cold water pump for pump cold seawater. The output end of the cold water pump the cold source for condensing the cycle working fluids through a condenser. The seawater desalination loop is a reverse osmosis desalination system which comprises a high-pressure pump and a reverse osmosis device. The power output end of the organic turbine is connected with the drive shaft of the high-pressure pump. Solar energy collectors are disposed in the heat source circulating loop or the power circulating loop. The solar energy collectors are connected between the warm water pump and the evaporator or between the evaporator and the organic turbine.

The invention relates to a comprehensive gradient utilization system of recovered heat and waste heat of thermal power generation. The comprehensive gradient utilization system comprises an air pre-heater subsystem, a main condensation water subsystem, a medium temperature condensation water supply subsystem, a low temperature condensation water supply subsystem, a smoke cooling condensation water subsystem and an air heating condensation water subsystem. The air pre-heater subsystem is connected with the smoke cooling condensation water subsystem, the medium temperature condensation water supply subsystem, the low temperature condensation water supply subsystem and the air heating condensation water subsystem and then is connected to the main condensation water subsystem in a collected mode.

The invention discloses a device system and method for gradient absorption of copper slag waste heat based on a coal gasification reaction. The method comprises the steps of carrying out copper slag granulation, carrying out the coal gasification reaction, carrying out waste heat recovery through a waste heat boiler and the like. The method specifically comprises the following steps that copper slag is prepared into high-temperature spherical slag particles, and the slag particles gradually provide heat for the coal gasification reaction and the waste heat boiler process; pulverized coal is subjected to heat exchange with the slag particles and is subjected to the gasification reaction under the action of a water vapor and a gasifying agent to absorb the heat of the slag particles so as togenerate synthesis gas containing CO, H2 and CH4; and cold water absorbs heat through heat exchange with the slag particles and is converted into water vapor to serve as the gasifying agent for the gasification reaction. According to the device system and method, the solid slag particle waste heat recovery efficiency is improved to 75% or above, and meanwhile high resource utilization of the coaland copper slag is achieved.

The invention provides an evaporation cooling device with the superheated steam producing function for a pusher-type heating furnace. The evaporation cooling device comprises a water feed pump, a steam pocket, a preheating section transverse water pipe, a preheating section, and at least one of a heating section transverse water pipe, a heat uniformizing section transverse water pipe and a crossing water pipe. A water feeding inlet of the steam pocket communicates with a water outlet of the water feed pump. The preheating section is arranged in a furnace hearth of the heating furnace, a steaminlet of the preheating section communicates with a steam outlet of the steam pocket, and a steam outlet of the preheating section communicates with a superheated steam pipe network outside the heating furnace. The heating section transverse water pipe is arranged in a heating section, the heat uniformizing section transverse water pipe is arranged in a heat uniformizing section, and the crossingwater pipe is arranged in the furnace hearth of the heating furnace and transversely crosses the preheating section, the heating section and the heat uniformizing section. A water inlet of at least one of the heating section transverse water pipe, the heat uniformizing section transverse water pipe and the crossing water pipe communicates with a circulating water outlet of the steam pocket, and awater outlet of at least one of the heating section transverse water pipe, the heat uniformizing section transverse water pipe and the crossing water pipe communicates with a steam-water mixture inletof the steam pocket. The energy quality of waste heat recovery of the heating furnace is improved, and the fuel consumption of the heating furnace is also reduced.

The invention discloses a still kettle system for producing ardealite steam-pressing bricks. The still kettle system comprises a heat main steam source collecting box, a still kettle A, a still kettle B, a still kettle C, a still kettle D, a still kettle E, a steam source distribution pipe, a dead steam distribution pipe, a steam-steam pumping pipe A, a steam-steam pumping pipe B, a steam-steam pumping pipe C, a steam-steam pumping pipe D and a steam-steam pumping pipe E, wherein the main steam source collecting box is connected with the steam source distribution pipe through a steam source main valve A and a steam source main valve B; inlets of the still kettle A, the still kettle B, the still kettle C, the still kettle D and the still kettle E are connected with the steam source distribution pipe and the dead steam distribution pipe; outlets of the still kettle A, the still kettle B, the still kettle C, the still kettle D and the still kettle E are connected with the steam-steam pumping pipe A, the steam-steam pumping pipe B, the steam-steam pumping pipe C, the steam-steam pumping pipe D and the steam-steam pumping pipe E. Dead steam of the still kettles are subjected to temperature rise and pressure rise respectively through the steam-steam pumping pipes and then is gathered into the dead steam distribution pipe, therefore the dead steam can be recycled instead of being discharged, the recycling effect is better, and the maximum recycling and reusing purposes are achieved.

The invention discloses a quota system-considered renewable energy source distribution and consumption method. According to the method, the output conditions of renewable energy source output provinces and the consumption conditions of renewable energy source consumption provinces are judged on the basis of analyzing the output data and load data of a unit. The process of judging the renewable energy source consumption conditions comprises the steps of judging whether the output provinces deliver renewable energy sources or not according to cross-province renewable energy source delivery electric quantities; determining the consumption conditions of the consumption provinces according to renewable energy source electric quota indexes of the consumption provinces and practical completion condition indexes of the renewable energy source electric quotas; and for the residual renewable energy source after completing the renewable energy source electric quota indexes, carrying out market transaction or continuously carrying out renewable energy source consumption according to a compensation mechanism. The method is capable of providing reference for how to carry out maximum consumptionof cross-province renewable energy sources, is beneficial for improving the renewable energy source utilization rate, and is capable of solving the wind and light abandoning problems to a certain extent.

The invention discloses a hydrothermal carbonization coupled double flash-organic Rankine cycle power generation system and method, including a hydrothermal carbonization system, a flash steam power generation system and an organic Rankine cycle system, and the reaction kettle is connected to the first stage through a slurry pump The flash tank, the concentrated slurry outlet of the first flash tank is connected to the second flash tank, the steam outlet of the first flash tank is connected to the first turbine, the steam outlet of the second flash tank is connected to the first turbine The exhaust steam outlet of the flat machine is connected to the second-stage turbine, and the first-stage turbine and the second-stage turbine coaxially drive the first generator to generate electricity; the concentrated slurry outlet of the second-stage flash tank is connected to the evaporator, The steam outlet of the organic working medium of the evaporator is connected to the turbine, and the turbine drives the second generator to generate electricity. The invention efficiently realizes the quality improvement and utilization of the waste heat of the hydrothermally carbonized slurry product, and significantly reduces the moisture content of the hydrothermally carbonized slurry product and the subsequent mechanical dehydration amount and dehydration energy consumption.