43results about How to "Realize ladder utilization" patented technology

The invention belongs to the field of related equipment of the carbon capture technology and particularly relates to a rotary cyclic carbon capture device and method based on three-bed reaction. The rotary cyclic carbon capture device comprises a rotating shaft and one or more sets of circulatory reaction units, wherein each set of circulatory reaction unit comprises three reactors which are arranged side by side in the circumferential direction of the rotating shaft and are uniformly distributed; a cavity is formed in each reactor and used for placing an absorbent; a gas inlet is formed in the top of each reactor; a gas outlet is formed in the bottom of each reactor; and each gas inlet and the corresponding gas outlet are communicated with the cavity in the corresponding reactor. The invention further discloses a method adopting the rotary cyclic carbon capture device to perform circulatory carbon capture. The problem of adsorption performance degradation caused by the reasons that pores are reduced by high-temperature sintering of a calcium-based absorbent and the pore structures are destroyed by CaSO4 impurities generated by a SO2 reaction is solved, meanwhile, the problem of abrasion of an absorbent is solved, the energy consumption is greatly reduced, and the rotary cyclic carbon capture device is compact in structure and has the advantages of high economical efficiency, excellent environmental friendliness and the like.

The invention discloses a boiler fuel gas waste heat desulfurization waste water coupling, evaporating and concentrating system. The system comprises a flue heat exchanger, an evaporator group, a tail gas condenser and a tail gas condensation tank, wherein a desulfurization waste water pipeline is sequentially connected with the evaporator group, the tail gas condenser and the tail gas condensation tank, and a flue heating system is connected with the evaporator group; the flue heat exchanger is arranged in a boiler fuel gas emission channel, and desulfurization waste water in the evaporator group is heated by utilizing fuel gas waste heat; the evaporator group comprises at least one group of evaporators, each group of evaporators include a heater, a circulating pump and a separator which are connected into a ring through a pipeline, the flue heat exchanger is connected with the heater, and a vapor outlet and a concentrated liquid outlet are formed in the separator; the tail condenser cools and condenses the evaporated vapor; and the tail condensation tank stores and delivers condensed water into a finished water tank. According to the system, no chemicals are added during the concentration process of the desulfurization waste water, the distilled clean water is recycled, and the water recovery rate of the desulfurization waste water treatment system is greater than 90%.

The invention discloses a two-stage humidification heat pump sea water desalination device, which comprises a compressor, a condenser, a throttle valve, an evaporator, an auxiliary heat exchanger, a hot sea water circulation pump, a cooling sea water circulation pump, a cooling sea water three-way regulating valve, a primary sea water sprayer, a primary humidifier, a primary thick sea water collector, a secondary sea water sprayer, a secondary humidifier, a secondary thick sea water collector, a primary precooler, a primary fresh water collector, a secondary precooler, a secondary fresh watercollector, a tertiary fresh water collector, a flow division three-way valve, a flow merging three-way valve and a centrifugal fan. The two stages of humidifiers are used for completing the heating humidification on the circulation air; the two stages of precoolers and evaporators are used for completing the condensation on wet ingredients in the circulation air and fresh water separation; the condensation potential heat is recovered and reutilized for completing the water supplementation on the system and the preheating humidification on the circulation air; the system heat recovery efficiency and water yield are improved; the equipment scale is simplified; the equipment scale formation trends are reduced; fresh water can be provided for different occasions.

The invention belongs to the technical field of electric vehicle charging stations, and particularly discloses a semi-off-grid wind-solar complementary charging station which comprises a power supplysystem, an intelligent management system, an energy storage system and a charging pile charging system, and is characterized in that the power supply system comprises a wind power generation system, aphotovoltaic power generation system and a state grid power supply system. The charging station has low dependence on the power grid, Stepped utilization of retired power batteries can be realized, peak clipping and valley filling are carried out on the power grid, and the expenditure of an electric vehicle user is reduced and the remaining electric quantity is transmitted to the grid.

The invention relates to a desulfurization wastewater softening and membrane concentration method. The method comprises the following steps: pumping desulfurization wastewater into a raw water tank for storage and water quantity adjustment; carrying out microfiltration on the wastewater; enabling the filtered produced water to flow into a dosing settling tank, and adding a combined organic medicament into the dosing settling tank so as to soften the water quality of the produced water in the dosing settling tank; discharging the bottom mud in the dosing tank, and carrying out vacuum filter pressing on the bottom mud; pumping the supernate into a buffer tank; filtering water discharged from the buffer tank; adding a scale inhibitor into the filtered pipeline and mixing; and pumping the mixed solution into a nanofiltration membrane for filtering to obtain produced water and concentrated water of the nanofiltration membrane. The desulfurization wastewater softening and membrane concentration method disclosed by the invention has the advantages that calcium ions are complexed and precipitated, the removal rate of magnesium ions is relatively low, the magnesium ions and chloride ions and sulfate ions in the wastewater are not precipitated under an acidic condition, and the membrane is not polluted and blocked, so that a large amount of dosing cost can be reduced.

The invention provides a park comprehensive energy station planning and designing method and system. The method comprises the steps of adopting an index method to predict loads in a park; according to the prediction result of each load in the park and the resource condition of the park, considering reasonable utilization of equipment, and determining an energy station structure and equipment capacity in the park, wherein the loads include cold, hot and electrical loads. According to the method provided by the invention, the energy utilization efficiency can be improved, the diversified individual requirements of electric load, thermal load and cold load of the park are met, peak clipping and valley filling of cold and hot energy are realized, and the utilization rate of power grid equipment is effectively improved.

The invention discloses a photovoltaic-temperature difference combined heat and power generation device. The device comprises a base, a fixing support, a driving mechanism, a rotating shaft, a collecting lens, a power generation mechanism, a cooling pool, a water tank, a steam generator and a storage battery, wherein the fixing support is arranged on the base; the driving mechanism is arranged onthe fixing support; one end of the rotating shaft is connected with the power output end of the driving mechanism, and the rotating shaft is rotatably supported on the fixing support; the collecting lens is connected with the other end of the rotating shaft; the power generation mechanism is arranged above the collecting lens in a supporting manner; the cooling pool is communicated with the powergeneration mechanism; the water tank is communicated with the cooling pool and the power generation mechanism; the steam generator is connected with the water tank; and the storage battery is electrically connected with the steam generator. The power generation mechanism is condensed through the collecting lens, the height and angle of the collecting lens can be adjusted, and the power generationefficiency is improved. The invention further provides a maximum power point tracking algorithm of the photovoltaic-temperature difference combined heat and power generation device.

The invention discloses a system and method for heating primary air, feed water and circulating water through bypass smoke. A hot smoke outlet of a coal-fired boiler of the system comprises a hot smoke main way and a hot smoke bypass. The hot smoke main way communicates with a smoke bin chamber of a tri-section bin preheater, and the smoke bin chamber communicates with a cold smoke main way. A baffle door is mounted in the hot smoke bypass and sequentially communicates with a feed water heat exchanger, a high-temperature primary air heat exchanger, an air heater circulating water heat exchanger and a low-temperature primary air heat exchanger. The low-temperature primary air heat exchanger communicates with a cold smoke bypass. The feed water heat exchanger heats the feed water, the low-temperature primary air heat exchanger and the high-temperature primary air heat exchanger heat the cold primary air, and a water pipe and the air heater circulating water heat exchanger heat the circulating water. The method includes the steps that the feed water, the primary air and the circulating water are simultaneously heated through waste heat of the bypass smoke. Utilization of the waste heat of the smoke is greatly improved, and the system and method are more beneficial for environmental protection, energy saving and cost reduction.

The invention belongs to the field of coal chemical industry and activated carbon preparation and particularly relates to a method for preparing activated carbon with low-rank coal extracted solid. The method includes: subjecting low-rank coal to hot-solvent extraction process and collecting the extracted solid discarded after extraction process as a raw materials for preparation of the activatedcarbon; subjecting the collected extracted solid subjected to hot-solvent extraction process to pyrolysis in an inert gas atmosphere prior to physical activation treatment or chemical activation treatment to obtain the activated carbon. The activated carbon prepared is large in specific area and pore volume and is widely applied; gradient utilization of the low-rank coal is realized, economical efficiency in hot-solvent extraction technology of the low-rank coal is improved, and the activated coal with high quality is prepared; the method is simple in process, high in added value of products,good in economic and environmental benefits and broad in spreading use.

The invention discloses a heating apparatus, heated at the rear, comprising a lithium bromide heat pump and used in combined heat and power generation of a power plant, belongs to the field of residual heat recovery of heat supply and heat distribution, and aims to solve the problems about provision of a high-temperature heat source for the lithium bromide heat pump and a mismatch between heat supply and demand. An outlet of a water storage tank is connected with a solar water heater through a pipeline; a sixteenth control valve is arranged on the pipeline; two branches of a water outlet pipeof the solar water heater are connected with water pipes in parallel; a thirteenth control valve is arranged on one water pipe, which is connected with a fifth circulating pump; each lithium bromide heat pump unit comprises a high-temperature heat source, a low-temperature heat source and a medium-temperature heat source; and a heat exchange pipeline of a waste steam device is communicated in parallel with an evaporator of a steam heat pump unit and the low-temperature heat sources of all the lithium bromide heat pump units. The effects are: providing the high-temperature heat source for the lithium bromide heat pump and realizing water recycling in the power plant.

The invention discloses a muffle reduction ironmaking device, belongs to the technical field of non-blast furnace ironmaking, and solves the problems of low metalization ratio, low flue gas utilization efficiency and high energy consumption of an existing rotary hearth furnace. The muffle reduction ironmaking device comprises a rotary hearth furnace. The inner space of the rotary hearth furnace isdivided into a heating segment and a reduction segment through a partition wall in the axial direction of the rotary hearth furnace, and the partition wall is arranged in the radial direction. The heating segment is a heating chamber, and the reduction segment is divided into a reduction chamber and a combustion chamber located above the reduction chamber through a muffle plate in the axial direction of the rotary hearth furnace. A feed port is formed in the heating chamber, a discharge port is formed in the reduction chamber, and combustion gas is introduced into the heating chamber and thecombustion chamber. The ironmaking device can be used for reduction of iron-containing furnace charge.

The invention discloses a combined heat and power generation method for a power plant, belongs to the field of heat supply waste heat recovery and heat distribution, and aims to solve the problem thatthe heat of power plant water is increased step by step. Power plant water at about 5 DEG C enters a cold water inlet of a condenser of the steam heat pump unit (48), steam exhaust water generated bythe steam exhaust device (50) exchanges heat with power plant water at about 5 DEG C of the condenser end of the steam heat pump unit (48) at the evaporator end of the steam heat pump unit (48), primary heat exchange water at about 30 DEG C is output from the condenser end of the steam heat pump unit (48), the first-stage heat exchange water enters a medium-temperature heat source of the third lithium bromide heat pump unit (47) and serves as inlet water of the third lithium bromide heat pump unit (47), and the effect is that heat is increased step by step.

The invention discloses a water optimization system and method for a wet flue gas desulfurization device with high-efficiency dust removal in a thermal power plant, wherein a flue gas pipeline at theoutlet of a boiler is communicated with a flue gas inlet of a desulfurization absorption tower, a spray layer, a first layer of a flushing water pipe, a first layer of a ridge type demister, a secondlayer of the flushing water pipe, a third layer of the flushing water pipe, a second layer of the ridge type demister and a fourth layer of the flushing water pipe are sequentially arranged in the desulfurization absorption tower from bottom to top; the outlet of an oxidation fan and the inlet of the spray layer are both communicated with a slurry pool at the bottom of the desulfurization absorption tower, and a chimney is communicated with a flue gas outlet at the top of the desulfurization absorption tower. The system and method can meet the environmental protection requirement that the concentration value of smoke dust at the outlet of the chimney is lower than 5mg/Nm3, and the cost is lower.