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1827 results about "Energy recycling" patented technology

Energy recycling is the energy recovery process of utilizing energy that would normally be wasted, usually by converting it into electricity or thermal energy. Undertaken at manufacturing facilities, power plants, and large institutions such as hospitals and universities, it significantly increases efficiency, thereby reducing energy costs and greenhouse gas pollution simultaneously. The process is noted for its potential to mitigate global warming profitably. This work is usually done in the form of combined heat and power (also called cogeneration) or waste heat recovery.

Fresh air conditioner

The invention relates to the field of heating ventilation air conditioners, in particular to an improved air treatment method and a fresh air conditioner device. The invention improves the problems of traditional fresh air treatment and air conditioners and particularly emphasizes that a plate-type air-air heat exchanger and indirect water evaporative cooling are used for recycling energy of sensible heat and latent heat in air exhaust in the fresh air treatment process of damp and hot regions in summer and condensed water is directly evaporated on an evaporator to improve the working condition of a compressor. Under the condition of quantificationally supplying outdoor fresh air, the energy efficiency ratio of the fresh air conditioner is increased, the thermal pollution, damp pollution and noise pollution of the fresh air conditioner to environments are reduced, the indoor air quality is improved, and meanwhile, the fresh air conditioner provides the manufacture, installation and using convenience for a local region all-air central air conditioner. The fresh air conditioner provided by the invention and a design and manufacture method of the fresh air conditioner are applicable throughout the year in various regions, particularly in the damp and hot regions; and the fresh air system provides controlled, comfortable and healthy air environments for indoor activity space of people and air conditioner environments for technology for processing, storage and the like.
Owner:张洪

High-efficiency lignite low-temperature dry distillation quality-enhancing process by using dry distillation coal gas as heat-carrying medium

The invention relates to a low-temperature dry distillation process for coal, in particular to a high-efficiency lignite low-temperature dry distillation quality-enhancing process by using dry distillation coal gas as a heat-carrying medium. The process comprises a coal-preparing flow, a drying flow, a dry distillation flow, a heat source flow, a coal gas and tar processing flow and a semicoke cooling transfer flow; in the process, vapor self-generated by a drying tower is used as a drying medium, the coal gas of a generator is taken as a heat source to heat the self-generated dry distillation coal gas, and serves as a dry distillation medium, and the coal gas of the generator is used as fuel of a hot air furnace; the dry distillation semicoke is cooled in a cooling mode of drying fume exhaust plus semi water spraying; and condensation water is used for coke-quenching water, a gasifier of the coal gas of the generator and a tar cooling agent. The process has the advantages of producing high-index dry coal and dry semicoke, high-heating value coal gas and high-quality tar, having a flawless and high-efficiency energy recycling system, not using outside nature water, hardly discharging water to the outside, saving huge cost for sewage treatment, creating the maximum economic benefits for customers and having quite strong competitive power on economy, technology and market.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Control method for low-voltage power source management system of new-energy vehicle

ActiveCN105730272AImprove braking energy recoveryIncrease workloadCharging stationsElectric powerLower limitNew energy
The invention discloses a control method for a low-voltage power source management system of a new-energy vehicle. Through DC/DC output voltage control, the braking energy recycling rate of the vehicle can be increased, and the driving comfort and safety of the vehicle can be improved; high and low voltage electric energy is reasonably distributed, and the travel mileage of the vehicle is prolonged. The method is mainly characterized in that the power source management system adjusts the DC/DC output voltage according to different work modes and the state of an accumulator SOC of the vehicle, and the purpose of whole vehicle power source management is achieved. The method includes the steps that firstly, an upper limit value SOC_TOP of the low-voltage accumulator SOC is set to be a, a ranges from 85% to 90%, a lower limit value SOC_BOTT of the low-voltage accumulator SOC is 80%, a bottom limit value SOC_DOWN of the low-voltage accumulator SOC is b, b ranges from 60% to 70%, the low-voltage accumulator is charged by increasing the DC/DC output voltage and discharged by decreasing the DC/DC output voltage through a whole vehicle control unit, and the accumulator SOC is controlled between SOC_TOP and SOC_BOTT. The method mainly comprises control methods in a static charging mode, a Key-on mode, a high-voltage electric energy lacking and braking mode and a fault mode.
Owner:CHINA FIRST AUTOMOBILE

Combined-type diesel engine waste heat energy recycling system

The invention discloses a multi-grade waste heat energy cascade recycling system for a diesel engine, and particularly relates to a combined-type diesel engine waste heat energy recycling system. The waste heat energy recycling system is structurally characterized in that a high-temperature Rankine cycle system is composed of a working medium pump, a thermoelectric generator, an EGR heat exchanger, an exhaust heat exchanger, a steam turbine, a condenser and the like of a high-temperature system; a low-temperature Rankine cycle system is composed of a working medium pump, an EGR heat exchanger, an exhaust heat exchanger, the cylinder body cooling water heat exchanger, the supercharged air heat exchanger, a steam turbine, a condenser and the like of a low-temperature system. A middle electrical machine is arranged between a turbine motor and a supercharger; the waste heat of cooling water, supercharged air, exhausted gas, EGR recirculated waste gas and the like are utilized, and through the high-temperature and low-temperature organic Rankine cycles, thermoelectric power generation, turbine direct power generation and the like, heat exchange can be carried out between various kinds of waste heat generated by the diesel engine and working media sequentially according to the grade. Due to arrangement of the middle electrical machine, the expansion ratio of the exhausted gas can be improved, and excess pressure energy of the exhausted gas can be directly recycled. Full recycling of multi-grade waste heat energy of an internal combustion engine can be achieved, irreversible losses of the system are reduced, the fuel economical efficiency is effectively improved, and therefore the aims of saving energy and reducing emissions are achieved.
Owner:TIANJIN UNIV

Hydraulic double-motor driving electronic hydraulic braking system

A hydraulic double-motor driving electronic hydraulic braking system comprises a braking pedal, a braking master cylinder, a secondary master cylinder, a liquid storage tank, a pedal displacement sensor, a hydraulic pressure sensor, an electronic control unit ECU, a first electronic control linear moving module and a second electronic control linear moving module for performing active control on hydraulic braking force and pedal force of the system, an electronic stability control module ESC for regulating the hydraulic braking force of each wheel cylinder, a tee joint for connecting hydraulic pipelines between the braking master cylinder and the inlet of the electronic stability control (ESC) module as well as between the secondary master cylinder and the inlet of the ESC module. According to the invention, the pedal force of a driver can be utilized for pressure establishing, the active control on the pedal force is realized while a pedal force simulator with a complex structure is omitted, braking pedal feel is ensured, the braking intention of the driver can be correctly reflected, the active control on hydraulic pressure is realized, the braking requirement of a vehicle is met, maximum braking energy recycling can be realized, the control is precise, and the response speed is high.
Owner:TONGJI UNIV

Tubular pyrohydrolysis treatment method and device for sludge

The invention provides a tubular pyrohydrolysis treatment method and device for sludge. The device consists of five main systems, namely a feeding system, a modification system, a dehydration system, a heat exchange system, and a purification system; and by adopting a catalyst injecting mode, the sludge is directly heated with medium pressure steam and is subjected to pyrohydrolysis at medium temperature, the remaining heat in the hydrolysis process is fully recycled, and a liquid-solid mixture is obtained, so not only supports of controllable components are provided for a compound fertilizer, but also a filter cake which is subjected to liquid-solid separation has an adjustable moisture content, namely the moisture content of the raw sludge can be reduced to 40 to 60 percent from about 80 percent. Compared with the prior art, the device has the advantages that: the structure is simple, the device can be continuously and stably operated, the sludge pyrohydrolysis temperature is 210 to 250 DEG C, the reaction time is 10 to 20 minutes, the reduction and harmless treatment of the sludge can be economically, quickly and effectively achieved, the sludge can be treated on a large scale, and a novel approach is provided for the sludge treatment and the energy recycling of equipment.
Owner:安徽合协生态环境科技有限公司

Double-barrel water cooled wall type radiation waste boiler with adjusting function and industrial application thereof

The invention discloses a recycling technology for sensible heat of high-temperature and high-pressure gasified products which are coal-gasified by an entrained flow bed, is particularly applicable for a waste boiler flow gasification furnace or a half waste boiler flower gasification furnace of a gasification island of an integrated gasification combined cycle (IGCC) power generation system, and provides a double-barrel water cooled wall type radiation waste boiler with an adjusting function. The double-barrel water cooled wall type radiation waste boiler consists of a flange connected with the gasification furnace, a shell for bearing high temperature and high pressure, an inner-layer water cooled wall, an outer-layer water cooled wall, a screen type water cooled wall, a soot blower and a slag pool positioned at the bottom, and comprises a water-spraying temperature reduction device with the adjusting function. Dust and slag which are carried by most air flows are caught and collected by the slag pool, and synthesized gas flows out from the single side of the radiation waste boiler. High-pressure water entering the radiation waste boiler recycles the sensible heat of the high-temperature and high-pressure gasified products and is converted into saturated high-pressure steam discharged from the outlet of the water cooled wall. By the double-barrel water cooled wall type radiation waste boiler, the high-position sensible heat of the gasified products can be recycled effectively, so the whole energy utilization efficiency can be improved; the double-barrel water cooled wall type radiation waste boiler has the characteristics of safe running, reliability and controllability, and is a clean and efficient energy recycling technology.
Owner:EAST CHINA UNIV OF SCI & TECH

Independent pressure regulating device and method of natural gas expander

The invention relates to the field of natural gas pressure regulation and pressure energy recycling, and particularly provides an independent pressure regulating device and an independent pressure regulating method of a high-precision natural gas expander. The device comprises a natural gas system, a control system and a monitoring terminal, wherein the natural gas system is used for reducing pressure of natural gas in an upstream high-pressure pipe network and recycling pressure energy and is used for introducing the natural gas of which the pressure is reduced and the pressure energy is recycled to a downstream lower-pressure pipe network, the control system comprises a center controller which is used for regulating corresponding parameters when the pressure is reduced and the pressure energy is recycled, and the monitoring terminal is used for receiving data transmitted by the center controller and sending a data read request to the center controller. According to the pressure regulating device and the pressure regulating method, the pressure energy of the natural gas is recycled, and additionally, high-precision pressure regulation of the natural gas is realized only by utilizing the independent expander without a pressure regulating valve.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE

Plunger pump with energy recycling function

The invention discloses a plunger pump with the energy recycling function. The plunger pump comprises a variable pump body (2), a reset cylinder (1), a variable cylinder (3), a tilting tray angle changing feedback mechanism (10), a pressure control unit, a valve device and an electric proportional valve Y II (8). The valve device is used for selecting a pump control oil path and a motor control oil path. One oil port of the valve device is connected with the electric proportional valve Y II (8), and the other oil port of the valve device is connected with a pressure control unit. The variable pump body (2) is provided with a tilting tray. The pressure control unit is composed of a pressure stop valve and a load-sensitive flow control valve. The dual functions of a pump and the function of a motor can be achieved for the plunger pump through the both-way swinging of the tilting tray under the condition that the rotating direction of a main shaft and a high-pressure oil port are not changed. The load-sensitive pressure difference control, the constant-pressure cut-off control and the fixed displacement control can be achieved when the plunger pump serves as the pump in use. The electromagnetic proportional displacement control can be achieved when the plunger pump serves as the motor, and free switching between the function of the pump and the function of the motor can be achieved through the valve device.
Owner:XUZHOU HEAVY MASCH CO LTD

Traction auxiliary integrated vehicle-mounted energy storage system for urban rail traffic vehicles

The invention belongs to the technical field of rail transportation vehicle-mounted energy storage, and particularly relates to a traction auxiliary integrated vehicle-mounted energy storage system for urban rail traffic vehicles. The traction auxiliary integrated vehicle-mounted energy storage system includes two loop outputs, one loop supplies power to a vehicle auxiliary system and satisfies the auxiliary system power demand, and the other loop is connected with traction systems to meet the vehicle traction and braking energy recycling requirements; the two loops return through a grounded negative line; a battery box in the energy storage system is provided with multiple clusters of batteries, each cluster of batteries corresponds to one traction system, and the positive and negative external output terminals connected with the traction systems are controlled by normally open relays; the multiple clusters of batteries corresponds to an auxiliary charger after being connected in parallel through diodes and supplies power in turn to the auxiliary system through the voltage competition, the auxiliary loop returns through the grounded traction system negative line, an auxiliary output positive bus-bar is controlled by using a normally closed contactor, and the power supply reliability to the auxiliary system is ensured.
Owner:BEIJING JIAOTONG UNIV +1

Large-volume concrete self-circulation temperature control maintenance system and method

The invention relates to a large-volume concrete self-circulation temperature control maintenance system and method. The large-volume concrete self-circulation temperature control maintenance system comprises a water storage frame, a cooling water pipe, a water pump, a cooling water temperature monitoring mechanism, a concrete temperature gradient monitoring mechanism and a water storage temperature sensor; the water storage frame is arranged at the top of large-volume concrete and used for forming a water storage pool; the cooling water pipe is pre-embedded into the large-volume concrete, and a water inlet and a water outlet communicate with the water storage pool through a connection pipe to form a circulation water route; the water pump is arranged on the circulation water route; the cooling water temperature monitoring mechanism is used for monitoring the temperature of cooling water; the concrete temperature gradient monitoring mechanism is used for monitoring temperature gradient distribution of the large-volume concrete; and the water storage temperature sensor is arranged in the water storage pool and used for monitoring the water storage temperature. Compared with the prior art, through water resource cyclic utilization, water is not required to be supplemented additionally in the process of maintenance temperature control, maintenance water is heated by hydration heat of binding materials, energy recycling is realized, and the temperature control cost is saved.
Owner:TONGJI UNIV
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