36results about How to "Efficient cascade utilization" patented technology

The invention relates to a self-heating pyrolysis method. The self-heating pyrolysis method comprises the following steps of: feeding coal into a fluidized bed type pyrolysis furnace; introducing fluidifying gas at the bottom of the pyrolysis furnace, wherein the fluidifying gas contains oxygen, the oxygen content is sufficient for combustion of part of coal only, part of coal is combusted in the pyrolysis furnace and the oxygen is consumed while heat capable of heating the coal to a pyrolysis temperature is released, and the coal is pyrolyzed to produce semicoke and coal gas.

The present invention provides an adjustable volume family energy system utilized by step energy, the invention includes a compressor, a hot water heat exchanger, a four-way reversing valve, an outdoor wind cooling pipe coil, a first check valve, a second check valve, a first electronic expansion valve, a second electronic expansion valve, an air conditioning hot and cold heat exchanger, a gas-liquid separator, a water side electric three-way control way, a first solenoid valve, a second solenoid valve, a first water pump, a second water pump. These parts form a refrigerant loop, a domestic hot-cold water loop, realize refrigerating and hot water supplying, single refrigerating, single hot water supplying, single warm supplying, warm supplying and hot water supplying five modes. The control part of the refrigerant loop only has four-way reversing valve and electronic expansion valve in traditional air conditioning system, does not exist refrigerant potential safety hazard. The functionof each system is mainly realized by switch and adjustment of the water side two solenoid valves and electric three-way control way, has a simple control, credible security.

The invention discloses a novel distributed energy system of integratedly recycling energy source and resource, comprising solar energy and smoke afterheat compounded methane generating unit, sewage treating unit, and prime mover unit, interconnected, an integrated device for recycling and treating remaining rubbishes in kitchen, dejecta, and domestic sewage, where the medium-grade water from the sewage treating unit and the smoke output from the prime mover unit are connected to a medium-grade water heat pump unit, thus forming a novel distributed energy system where renewable energy sources and natural gas are complementary and heat, electricty, clean water and fertilizer are symbiotic. And it enhances system stability, and energy source supply stability, increases matter recycling ratio and implements high efficiency, stepped energy utilization, applied to colleges, enterprises and institutions, restaurants, housing estates, etc.

The invention discloses a multifunctional energy system. In the system, coal and natural gases simultaneously enter a reforming reactor, and the coal fires in the reforming reactor to drive the reforming reaction of natural gases, which generates synthetic gases of H2 and CO; the synthetic gases pass through a shift converter to convert CO into CO2, and then enter a pressure swing adsorption device(PSA) for preparing hydrogen gases; tail gases generated in the PSA device are sent to a CO2 separator to separate out a majority of CO2, and then compressed and cooled to become liquid CO2, which is convenient for transportation and storage; hydrogen rich fuel gases remained after the separation of CO2 are sent to a generating set, and high-temperature flue gases enter a waste heat recovery anda steam generation device, and the flue gases, the waste heat of which is recovered, are discharged in air; the flue gases discharged by a dual fuel reformer are also enter the waste heat recovery and steam generation device for recovering the waste heat, and then enter the CO2 separator to separate CO2 contained in flue gases; purified CO2 is compressed and liquefied, and finally the flue gases are discharged in air. The multifunctional energy system has the advantages of improving the utilization rate of the fuel and realizing the control and recovery of CO2 with zero energy consumption.

The invention relates to a device and a method for synchronous power generation and multi-generation of coal gas and powdered coal. High-volatile constituent faulty coal lignite, jet coal, non-caking coal, weakly caking coal, bottle coal are taken as feed coal, and enter a gasification-thermal dissociation coupled reactor by pressurizing a feeder so as to be subjected to high-efficiency and rapid pyrolysis reaction. the tar recovered from crude gas is pyrolyzed, the pyrolyzed tar is purified, then the purified tar is subjected to deep processing and transforming, finally, the tar is transformed into clean fuels such as liquefied gas, gasoline and diesel oil, the coal gas and bunker coal powder obtained by separation are subjected to blending combustion in a pulverized fuel boiler or a circulating fluid bed boiler, and thus steam is generated to drive a steam turbine so as to generate electricity. According to the invention, the preparation of coal-based clean fuels and fuel gas electricity generation technology are highly integrated; the coal gas and the coal dust are subjected to blending combustion in the boiler, so that the quantity of flue gas is deeply reduced; the concentration of PM2.5 and PM10 in flue gas is extremely low, the light-concentration emission of SO2, NOX, and heavy metals such as lead, chromium, cadmium, arsenic, mercury is realized, and the multi-generation of coal base energy source and gradient high efficiency utilization are realized.

The invention relates to a dual-pressure expansion organic rankine cycle (ORC) mid-low-temperature waste heat recovery power generation system and belongs to the technical field of energy and environments. According to the system, mid-low-temperature waste heat flue gas with the temperature being 200-350 DEG C is utilized as the driving heat source, organic working medium feeding liquid is preheated to be in a saturated liquid state in an ORC waste heat boiler preheating segment, then part of a saturated liquid organic working medium enters an evaporation segment and an superheating segment ofa waste heat boiler, generated saturated (or superheated) steam enters a radial-inward-flow turbine, and a high-pressure stage ORC expansion work doing process is completed; and the other part of thesaturated liquid organic working medium enters a flash vessel after being subjected to throttling and pressure reducing, saturated steam separated from the flash vessel enters a low-pressure stage screw expander, and a low-pressure stage ORC expansion work doing process is completed. An ejection compressor recovers the liquid-phase working medium separated out of the flash vessel, utilization ofliquid conveying pumps is reduced, the system is simplified, and the possibility of pump cavitation is eliminated.

A coal-to-liquids and gas generating cogeneration apparatus and method are disclosed. The coal-to-liquids and gas generating cogeneration apparatus comprises an integrated apparatus subsystem for extracting coal tar and making gas from coals, a subsystem for preparing cleaning fuel from coal tar, and a subsystem for combusting gas and generating power, wherein the integrated apparatus subsystem for extracting coal tar and making gas from coals comprises a charging unit, a raw coal upgrading conversion unit, and a raw coal upgrading conversion, reaction products separating and purifying unit, the subsystem for preparing cleaning fuel from coal tar comprises a coal tar pretreatment unit, a coal tar hydrogenation unit, and a coal tar hydrogenation products separating and purifying unit, and the subsystem for combusting gas and generating power comprises a steam generation unit and a Rankin-reheating cycle generating unit. The coal-to-liquids and gas generating cogeneration apparatus combines gas generating technology and cleaning fuel preparing technology, and realizes leveled utilization of coal resources, multi-level conversion and high-efficient cleaning conversion and utilization. The raw coal is wide in adaptability, and no secondary pollution is generated. Gas flue is free of lead, chromium, cadmium, arsenic and mercury, and density of NOX and SOX is low.

The invention discloses a comprehensive energy utilization system for a farm, and belongs to the technical field of distributed energy application. The system comprises a feeder, a manure-grass separator, an acidification pool, a fermentation tank, a biogas slurry storage pool, a solid-liquid separator, a desulfurization and dehydration system, a gas storage tank, a generator set, a waste heat boiler, a lithium bromide unit, a solar collector, a hot storage tank, a solar photovoltaic module, a water pump, a reservoir and a torch, wherein the livestock and poultry manure is treated intensively,the biogas and solar energy are combined organically to produce cold, heat and electricity and meet farm electricity, production heat, domestic water, domestic heating, air conditioning refrigerationand other demands, the biogas slurry and a solid organic fertilizer can produce to replace the use of pesticides and fertilizers, so that livestock and poultry manure can be turned into wealth.

The invention relates to a distributed gas-complementary solar energy combined cooling, heating and power supply system, which includes a distributed gas system, a solar photovoltaic photothermal system, a household solar hot water system, and a lithium bromide absorption refrigeration system. The system and the household solar water heating system are connected to the water inlet of the heat storage tank, the heat storage tank is connected to the cold water inlet of the heat exchanger, the hot water outlet of the heat exchanger is connected to the lithium bromide refrigerator, and the hot gas inlet of the heat exchanger is connected to the The flue gas discharge pipeline of the waste heat boiler in the distributed gas system. The hot water generated by the photothermal system in the solar photovoltaic photothermal system and the household solar hot water system flows into the hot water storage tank, and the hot water flows into the heat exchanger and is heated by the exhaust gas of the distributed gas waste heat boiler. Reach the temperature of the heat source of the lithium bromide refrigerator to realize refrigeration. The system makes full use of the heat generated by the system, and the electricity generated by the system can be used for self-use or connected to the grid. It truly realizes the efficient cascade utilization of clean energy and has a strong utilization prospect.