32results about How to "Combined heat and power" patented technology

The invention provides a hot process phosphoric acid waste heat utilization apparatus provided with a steam superheater. The apparatus comprises a steam drum, a phosphoric acid combustion furnace and the steam superheater, the phosphoric acid combustion furnace comprises a radiation heat exchange evaporator, the upper end of the radiation heat exchange evaporator is connected with the steam drum through steam guiding tubes, the lower end of the radiation heat exchange evaporator is connected with the steam drum through a downcomer, the steam superheater comprises coils, a steam distribution semi-annular tube and a steam collection semi-annular tube, the inlets of the coils are connected with the steam distribution semi-annular tube, the outlets of the oils are connected with the steam collection semi-annular tube, the steam distribution semi-annular tube is connected with the steam outlet tube of the steam drum through a steam introduction tube, and the steam distribution semi-annular tube is connected with a superheated steam output tube through a superheated steam guiding tube to lead out superheated steam. The hot process phosphoric acid waste heat utilization apparatus provided with a steam superheater heats saturated steam discharged by the steam drum through adopting the steam superheater to form superheated steam with a certain temperature and outputs the obtained superheated steam with a certain temperature, so the waste heat recovery efficiency and the energy comprehensive utilization efficiency are improved, and the outlet temperature of the phosphoric acid combustion furnace is reduced, thereby the apparatus has good social and economic benefits.

The invention relates to a distributed all-weather solar steam unit. The solar steam unit consists of soft water equipment, a circulation pump, a temperature-controlled flow valve, a solar vacuum tube, a U-shaped tube, a U-shaped tube jet atomization connection device, a thermal insulation tank, and an auxiliary heating unit. Device structure; the invention is a distributed all-weather solar steam unit, through the auxiliary heating device, the steam boiler can be replaced, the boiler room and the fireman are eliminated, the centralized steam supply mode of the boiler is changed, and the terminal is turned on immediately. Solar steam can also be used to drive low-boiling-point organic medium to vaporize and expand, to push the expander to output mechanical energy to generate electricity, and to use the organic medium to cool down and generate hot water to realize efficient cogeneration of solar steam. At the same time, the present invention uses an ordinary solar vacuum tube collector as a carrier , developed the rooftop solar steam energy, which can be used locally to amplify the energy-saving effect. It has the characteristics of mature products, simple structure, convenient operation and strong practicability.

The invention relates to a solar photovoltaic heat pump system, which comprises a solar photovoltaic electricity generation system, a recycle cooling system and a heat pump hot water system. A waterside inlet of an evaporator is connected with an inlet branch of a condenser through a branch, a fourth temperature control valve is arranged in the middle part, a cooler is pasted on the back of a photovoltaic component, an outlet of the cooler is respectively connected with a hot water storage tank and a constant-temperature water tank through a second temperature control valve and a first temperature control valve, a left side branch in the lower part of the hot water storage tank is connected with the cooler through a first recycle water pump, a right side branch in the upper part of the hot water storage tank is connected with the waterside inlet of the evaporator through a second recycle water pump and a third temperature control valve, an outlet of the evaporator is connected with the lower right side of the hot water storage tank through a pipe, the waterside inlet of the evaporator is connected with a third recycle water pump and the constant water tank in series through the pipe, a refrigeration loop of the evaporator is connected with a regenerator and is connected with an air entry and an exhaust outlet of a compressor through a liquid storage tank, and the inlet and the outlet of the condenser is connected with the evaporator entry through the regenerator and the electronic expansion valve.

The invention discloses a zero-carbon emission cogeneration device and working method based on a full thermal cycle. The device includes a Brayton cycle system, a heat pump system, a waste heat recovery system and a carbon capture system. LNG cold energy first enters the Brayton cycle system to generate electricity, then enters the turbine to generate electricity using the direct expansion method, and finally enters the carbon capture system to liquefy carbon dioxide, realizing the cascade utilization of LNG cold energy. The vaporized natural gas is fed into the gas turbine for combustion and drives the generator and heat pump to work. The waste heat generated by the gas turbine is recovered and used for heating, power generation or domestic hot water production. After the exhaust flue gas is separated, the cold energy of LNG is used to liquefy carbon dioxide to realize low-cost carbon capture. The invention couples LNG vaporization, carbon capture, waste heat recovery and heat pump technology, and realizes zero carbon emission and combined cooling, heating and power generation.

The invention discloses a system and a method for realizing cogeneration of a heat conduction oil furnace by using a semiconductor power generation device. High-temperature heat conduction oil is used as a heat source of a semiconductor temperature-difference power generation device. The system comprises at least one semiconductor temperature-difference power generation device, wherein the semiconductor temperature-difference power generation device comprises a phase-change working medium evaporator and a phase-change working medium condenser; the condenser cools vapour by using a cold fluid as a cooling medium in a mode of indirect heat exchange; the heat conduction oil which is subjected to power generation cooling by the semiconductor temperature-difference power generation device serves as a heat supply heat source of a heat exchanger of a heat user; the phase-change working medium condenser of a power generation module heats the cold fluid (water for instance); and a generated hot fluid (hot water or the vapour for instance) can serve as a heat supply medium for external supply. In the method, by adoption of the method and a device for realizing the cogeneration of the heat conduction oil furnace by using the heat conduction oil as a heat medium, the aim of efficiently and economically utilizing heat energy is fulfilled.

The invention provides a PVT heat pump system capable of achieving day and night time-division heat, power and cold supply through solar radiation and sky cold radiation, and a photovoltaic power generation technology and a PVT heat pump technology which are relatively independent and mutually promoted in function are used simultaneously. Solar radiation energy and sky long-wave cold radiation energy are used as main energy resources of the system, and the energy is converted into electric energy, heat energy and cooling capacity through a PVT photoelectric-evaporation / condensation assembly in different modes at different times. The system integrates the various functions of power generation, heating, cooling and the like, equipment composition is simple, the equipment utilization rate is high, the energy saving effect is remarkable, the energy utilization rate is increased to the greatest extent, and the effects of achieving multiple purposes through the system and achieving day and night time-division heat, power and cold supply are achieved.

The invention discloses a second-class absorption heat pump capable of outputting electric energy. The heat pump comprises an absorber, a heat exchanger, a throttling valve, a generation tower, a solution pump, a condenser, a solvent pump, a copper ammonia primary battery device and a controller. The heat pump is characterized in that the copper ammonia primary battery device is used for replacing an evaporator of a traditional second-class absorption heat pump system, solenoid valves in the copper ammonia primary battery device are controlled by the controller to switch channels, a cathode and an anode of a copper ammonia primary battery are interchanged after discharging every time, and the copper ammonia primary battery is changed into a regenerative primary battery, so that the system can output the electric energy continuously, and high-temperature water can be obtained in the absorber. Heat sources of the copper ammonia primary battery device and the generation tower of the heat pump can fully utilize low-grade heat sources such as industrial wastewater, process waste heat, solar hot water and the like, so that the system produces higher-grade heat energy and electric energy, combined heat and electricity generation is realized, and energy conservation and emission reduction are realized really.

The invention provides a photo-thermal power generation high-temperature solid heat storage system which comprises a heat fetching subsystem, a heat storage subsystem and a heat consumption subsystem.According to the system, solar light is focused on a tower solar heat collector through a multi-surface heliostat, circulating air and a high-temperature heat absorbing plate in the heat collector are subjected to radial convective heating to obtain high temperature, one path of the high-temperature air enters a high-temperature solid heat accumulator so that the heat accumulation temperature canbe as high as 900 DEG C, the other path of the high-temperature air can directly enter air heat users or enter a steam boiler to generate overheat steam, and the overheat steam enters a turbine set to act and generate power and then is supplied to low-pressure steam heat users so that combined heat and power generation can be achieved. The system can continuously, stably, safely and reliably provide a high-temperature heat source, can achieve all-weather running by adoption of the heat subsystems, and can meet the different requirements of the heat users, the energy utilization efficiency isgreatly improved, the using amount of conventional energy is reduced, environment pollution is effectively reduced, and the economic and social benefits are good.