187results about How to "Realize waste heat recovery" patented technology

The invention provides a device for improving the quality of the coal by pyrolysis, comprising a rotary drier, a pyrolyzer and a heating rotary kiln. The rotary drier is used for receiving and drying raw coal with granularity being less than and equal to 30mm, and is provided with a sleeve structure to directly change heat between the raw coal and the hot flue gas and indirectly change heat between the raw coal and hot semicoke; the pyrolyzer receives mixture of the dried raw coal and the high-temperature semicoke by a feed line of solid material, directly changes heat between the raw coal and the hot semicoke, pyrolyzes the mixture, and is further provided with a heat clamping sleeve accompanied with high-temperature flue gas; and the heating rotary kiln is used for receiving the hot semicoke from the pyrolyzer and processing the hot semicoke by the means of heating. The device for improving the quality of the coal by pyrolysis has flexible operation, good quality of the generated semicoke and the generated tar, high cascade utilization of energy and high system thermal efficiency, properly solving the technical problems such as dust and tar blocking, high dust content in the tar, etc.

The invention discloses an engine coolant waste heat utilization engine warming system adopting a solid-liquid phase change heat reservoir and a method of the engine coolant waste heat utilization engine warming system. The system comprises a temperature sensor, an electronic thermostat, an electronic fan, a radiator, the solid-liquid phase change heat reservoir, an electronic three-way valve and an MCU. Coolant flows through the phase change heat reservoir to heat phase change materials. The phase change happens to the phase change materials, the phase change materials absorb a large amount of latent heat, and residual heat of an engine is transferred into the phase change heat reservoir to be stored and used for starting engine warming. The electronic thermostat and the electronic three-way valve are controlled by the MCU and kept running synchronously all the time. The premise that normal work of an engine cooling system is not influenced is ensured. After the engine stops, large circulation is closed through the electronic thermostat and the electronic three-way valve. The phase change heat reservoir is sealed and enters the energy preservation state. Thus, under the condition that the existing engine power consumption is hardly increased, waste heat recycle is achieved. The engine warming starting process is achieved under the condition that the engine power consumption is not increased.

The invention provides a new energy automobile secondary circuit passenger compartment and battery motor electric control thermal management system. The system is composed of a refrigerant loop and acooling liquid loop. The refrigerant loop is composed of a compressor, a condenser, a throttling valve, an evaporator and a gas-liquid separator, so that a complete refrigeration cycle is formed. Thecooling liquid loop is divided into three parts of an outdoor heat exchanger unit, a battery motor electric control equipment heat dissipation and battery heating unit, and a passenger cabin heating and cooling unit. When the system runs, a water pump supplies power for the cooling liquid loop, and pumps the cooling liquid into each branch to realize the functions of refrigeration, heating and thelike. For the passenger compartment, the cooling liquid is used for exchanging heat with the interior, and the risk of refrigerant leakage is avoided. The cooling liquid loop is used for cooling or heating the passenger compartment, and the thermal management for battery, motor and electric control equipment in different modes is realized through opening or closing of an electromagnetic valve.

This invention relates to a recovery process and method of waste heat of blast furnace circulating water in the steel production, which installs heat pump unit on the pipeline to recover the waste heat in the of 40-50deg.C with the low-boiling working substance in the heat pump unit, and the cooled blast furnace circulating soft water enters the blast furnace circulating water system directly; the heat exchanger is installed on the water replenishing pipe of the steam boiler to provide the heat in the low-boiling working substance with waste heat and the driving heat of heat pump working to the fresh boiler water in the pipeline network beside the heat exchanger to increase the temperature to 70-80deg.C; the fresh boiler water through the heat exchanger is imported to the boiler system. This invention realizes the recovery of the waste heat in the blast furnace low-temperature circulating water by the installation of heat pump unit and heat exchanger without big alteration and applies the heat on the preheating of the fresh water in the steam boiler to save the needed steam and energy.

The invention discloses a method for generating power by gasifying integrated straws in a supercritical coal-fired generator set. The method comprises the following steps of: packing and forming biomass straws serving as a gasification raw material of a gasifier of a bubbling fluidized bed, wherein primary wind-heat air surplus in a power station and tail gas fume of a boiler are used as gasifying agents. A biomass gasifier is effectively integrated by simply modifying the conventional supercritical unit to make biomass gasified, combusted and generate power, so that the defect that the biomass is directly blended and combusted is effectively overcome, the influence of biomass ash on fly ash is avoided, and the problem that the conventional auger feeding equipment is easy to damage is solved; therefore, biomass energy can be efficiently utilized and pollutant emission of coal-fired power stations is further reduced.

The invention relates to a mobile heat storage vehicle based on phase-change materials. The mobile heat storage vehicle comprises a transport device, a heat storage device and a control system, wherein the heat storage device is fixed to the transport device in an operating mode, and the control system can display in time or monitor in time the situation selected from the flow rate, temperature, pressure, heat storage capacity, GPS positioning, travel speed and / or operating mileage; and the heat storage device comprises a housing, heat conduction phase-change materials and a heat exchange device, wherein the heat conduction phase-change materials and the heat exchange device are filled in the housing. The mobile heat storage vehicle is filled with a large amount of high performance phase-change materials to serve as heat storage mediums, the heat storage mediums, belongs to heat transfer between heat source ends and client ends rather than the transfer with no medium, and is obviously superior to the heat storage performance of the mobile heat storage vehicle which uses water mediums of the hot source ends or is filled with a small amount of phase-change materials; the control system can realize real-time monitoring and background monitoring; and the heat storage device can further comprise a heated fluid pipeline independent of a heating fluid pipeline, the waste heat recovery for non-clean high temperature flow is achieved, and using of lone time does not produce pollutions such as water pipes.

The invention relates to a method for breaking an electrically fused magnesium fused weight and simultaneously recovering waste heat by a dry quenching method, which belongs to the field of electrically fused magnesium smelting and provides an energy-saving technology for recycling the waste heat in the cooling process of the magnesium fused weight. The heat energy of the high-temperature magnesium fused weight is recovered by the dry quenching method in the cooling process of the magnesium fused weight, steam is generated through a heat exchanger by heat circulating gas which is obtained by adopting a direct countercurrent flow method of the air and the high-temperature magnesium fused weight, the steam is utilized for generating electricity, and the invention is used for the magnesite smelting process, achieves the purpose of energy saving, is beneficial to reducing the energy consumption level of electrically fused magnesium, achieves the coupling optimization of waste heat utilization and electrically fused magnesium quality improvement and has remarkable economic and social benefits.

The invention relates to a multi-stage heat-exchange and waste heat recovery hot-air system with the function of purifying fuel gas, which is mainly and organically formed by three components including a hot-air furnace containing a heat exchanger inside the furnace, a heat exchanger outside the furnace and a waste heat recoverer. The three components make full use of the heat energy generated bythe hot-air furnace in the modes of heating the air at a high temperature, a medium temperature and a low temperature, and the heat efficiency is much higher than that of a single-stage heat exchangerhot-air furnace and a hot-air furnace without waste heat recovery. Furthermore, the waste heat recovery of the last stage adopts smoke-water-gas secondary heat exchange, and the functions of fuel gaspurification, desulfuration and denitrification and the almost complete purification can be achieved on the basis of the existing function of dust removal by adding a purification drug in to an intermediate and water. The integral design of the multi-stage heat-exchange and waste heat recovery hot-air system with the function of purifying fuel gas has the advantages that the system can be optimized and the effect of not influencing the realization of other functions while various devices realize the functions thereof can be achieved.

The invention relates to a heat reservoir based on a phase-change material and a movable heat storage device provided with the heat reservoir. The heat reservoir comprises a shell, a heat-conducting phase-change material charged into the shell and a heat exchanger. The heat exchanger is located in the shell and comprises a heating fluid pipeline. The invention further relates to the movable storage device comprising the heat reservoir and a transporting unit. A large amount of the high-performance phase-change material is charged in the heat reservoir and serves as a heat storage medium, heat transmission, instead of medium transmission, between a heat source side and a client side is achieved, and the heat storage performance is remarkably superior to that of a movable heat storage device with water at the heat source side serving as the medium or a movable heat storage device filled with a small amount of the phase-change material; the heat reservoir further comprises a heated fluid pipeline independent of the heating fluid pipeline, and the heated fluid pipeline can be used for waste heat recovery of unclean high-temperature flow without pollution to such as a tap water pipeline after long-term use; and a selectable control system provided by the invention can achieve real-time monitoring and background monitoring.

The invention discloses an evaporating system capable of conducting online descaling and working continuously and an evaporating process. The evaporating system comprises n evaporating units, each evaporating unit is composed of an evaporator E and a steam-water separation mechanism S, the n evaporating units are connected in a feed liquor series-connection or parallel-connection evaporation mode to form the complete evaporating system, secondary steam generated by the n evaporating units shares one steam compression machine for pressurization and temperature raising, and a high-temperature steam main pipe is connected out of the steam compression machine and connected to high-temperature steam inlet pipes on the evaporating units in parallel; a liquid inlet pipe of the second-level/set evaporating unit is simultaneously connected with the first-level/set concentrate outlet pipe and a stoste inlet pipe; a concentrate main pipe is arranged, all the evaporating units except the first level/set evaporating unit are connected with the concentrate main pipe, the concentrate main pipe segment between the liquid inlet pipe and the concentrate output pipe of each evaporating unit is provided with a concentrate valve, valves on related inlet pipes and outlet pipes are controlled to isolate the evaporating units to be cleaned, and evaporating work of the system is not affected.

The embodiment of the invention discloses an expansion water tank sharing system for a new energy vehicle and the new energy vehicle. The system comprises a motor waterway, a battery waterway, a mixed water branch pipe located between the motor waterway and the battery waterway, a water return branch pipe located between the motor waterway and the battery waterway and an expansion water tank comprising a first water return pipe, a second water return pipe and an exhaust pipe; the exhaust pipe is connected to the motor waterway, the first water return pipe is connected to the motor waterway, and the second water return pipe is connected to the battery waterway. Accordingly, the liquid storage and air-exhausting functions are provided for the motor waterway and the battery waterway simultaneously by means of a shared expansion water tank, the capacity and weight of cooling liquid are lowered, structures and mounting supports which are needed by installing the expansion water tank are saved, and the total weight and cost are lowered.

The invention provides a method for synergistically realizing efficient removal of PM2.5/SO3 in high-moisture flue gas and zero water consumption in wet desulphurization. The method comprises the following steps: making the high-moisture flue gas pass through a low-temperature heat exchanger before entering an electric precipitator, so that the smoke temperature drops below an acid dew point, gaseous SO3 in the flue gas is condensed and adsorbed onto the surface of fine particulate matters, the PM2.5 removal of the electric precipitator is enhanced, and synergistic removal of SO3 is realized; after the flue gas leaves the electric precipitator, further cooling through a low-low-temperature heat exchanger to obtain high-relative-humidity flue gas, then reaching oversaturation in a desulfurization tower within a low-temperature desulfurization fluid contact process, and nucleating and condensing the oversaturated water vapor on the acid mist surface of the PM2.5 and the SO3, so that the particle size increases, and the removal of the acid mist of the PM2.5 and the SO3 in the desulfurization process is facilitated. At the same time, an oversaturated water vapor environment is established in the tower, so that a part of moisture is condensed from the flue gas to the desulfurization fluid, and zero water consumption in the wet desulphurization is realized synergistically. The method has the characteristics of high efficiency, energy saving, low investment and treatment cost, and the like.

The invention relates to the technical field of metallurgy, in particular to an oxygen-free cooling and residual heat recovering method for a magnetizing-roasted iron ore product. The method comprises the following steps: feeding a magnetizing-roasted high-temperature material being 800-850 DEG C and 8-25 millimeters in granularity from the upper part of a vertical cooler; introducing blast furnace gas of which the CO or H2 volume content is not greater than 30 percent from the lower part of the vertical cooler, and controlling the flow rate of the high blast coal gas at 0.8-1.5 m/s; performing heat exchange between the high-temperature material and the blast coal gas in the vertical cooler during inverse flow, wherein the temperature of the high-temperature material is lowered below 200 DEG C, and the temperature of the blast coal gas is raised to 700-750 DEG C. The magnetizing-roasted high-temperature material undergoes secondary oxidation in a cooling process, and can undergo secondary micro-reduction in the cooling process in the cooler, so that the quality of the magnetizing-roasted iron ore product is improved. Meanwhile, the over-reduction of the material is prevented, and cyclic utilization of residual heat is realized.

The invention discloses an integrated heat supply system for flue gas source heat pump waste heat recovery, flue gas white smoke removal and off-peak electricity phase change energy storage gradient temperature rise, and relates to the field of boiler flue gas white smoke removal, heat energy recycling and phase change energy storage. The objective of the invention is to solve the problem that white smoke is formed at a chimney opening in wet smoke exhausted by a boiler, visual pollution is generated, haze weather is intensified, and existing fused salt heat storage technology cannot meet theindustrial production requirement. The smoke source heat pump and the sleeve tank phase change energy storage device are creatively combined to generate a good effect. The flue gas source heat pump ofthe system can achieve complete recycling of natural gas heat energy, and the phenomenon of white smoke emission is eliminated. The sleeve tank phase change energy storage device raises 60 DEG C hotwater generated by the flue gas source heat pump into 95 DEG C hot water and 120-180 DEG C steam through the off-peak electricity energy storage warming system and supplies the hot water and the steamback to the boiler heat supply system, and environmental benefits and energy-saving benefits of eliminating chimney white smoke, reducing boiler natural gas consumption and reducing energy consumption cost are achieved.

The invention relates to a direct-contact type flue gas waste heat deep recycling and pollution reducing device and method. The device comprises a flue gas treatment subsystem and a waste heat water treatment subsystem. The flue gas treatment subsystem comprises a flue gas oxidation module, a flue gas waste heat deep recycling module and a flue gas mist removing and dust removing module. The waste heat water treatment subsystem comprises a waste heat water circulating module, a waste heat water desulfurization and denitrification module and a waste heat water dust removing module. By means of the direct-contact type flue gas waste heat deep recycling and pollution reducing device, heat exchange between flue gas and low-temperature waste heat water is achieved, the flue gas discharging temperature is decreased to be the dew point temperature or lower, the flue gas low-temperature heat is recycled, the flue gas is subjected to desulfurization, denitrification and dust removal treatment, and emitted flue gas pollutants are reduced. According to the direct-contact type flue gas waste heat deep recycling and pollution reducing device and method, the problem of corrosion to equipment by flue gas condensate is solved, the recycled heat can be used for various low-temperature heat users, the utilization efficiency of fuel can be effectively improved, and secondary treatment on the flue gas can be achieved.