79results about How to "Meet energy demand" patented technology

The invention relates to a model-prediction-control-based optimized dispatching method of an integrated energy system of a park. The method comprises: according to a selected integrated energy systemof a park, structure and parameters of the integrated energy system of the park are inputted; operational constraints of the integrated energy system of the park are established; a minimized sum of operation costs and equipment on-off costs of the integrated energy system of the park in a prediction domain at a rolling optimization stage is set to be an objective function and a minimized sum of operation costs and power adjustment punishment costs of the integrated energy system of the park within a single interval at a dynamic adjustment stage is set to be an objective function; optimized dispatching is carried out by using a rolling-optimization-based multi-time scale optimization dispatching method; and a dispatching plan of the system within one dispatching cycle is outputted, whereinthe dispatching plan includes operation costs, a heat supply water power of a solar hot water system, a ground source heat pump, a start-stop command of an electric boiler, an operating situation, anenergy supply power, a running condition of a thermal-storage water tank, and an energy supply power. According to the invention, optimized dispatching of the integrated energy system of the park is realized; the influence caused by the load and renewable energy output prediction errors is reduced effectively; and the energy demand of the system is satisfied economically and reliably.

The invention provides an underwater inflatable flexible solar concentrator applied to an underwater working device and a photovoltaic power generation system thereof and belongs to the technical field of new energy application. At a non-working state, the underwater inflatable flexible solar concentrator is accommodated in an accommodation box at the top end of the underwater operation device. The underwater inflatable flexible solar concentrator is composed of an inflatable flexible solar concentrator body, a solar cell array, a control platform, a lifting rope and the like. During work, the underwater inflatable flexible solar concentrator inflates the concentrator body and pulls the concentrator body to a specific position of underwater operation by adjusting the lifting rope to enable the solar cell array to be located on the focal plane of the concentrator body. Parallel light is refracted in water through the concentrator body and converged on the solar cell array to convert light energy into electric energy. The electric energy is stored in the control platform through a storage battery, and the using electric power needed by the underwater operation device is obtained after the electric energy passes through an inverter. Charging and discharging of the storage battery, energy supply of the underwater operation device and winding and unwinding of the lifting rope are all achieved through control of the control platform.

The invention discloses a park-level comprehensive energy supply system. The park-level comprehensive energy supply system comprises mains supply and is characterized in that the power output end of anatural gas distributed energy station (1) is connected with the power input ends of an industry park or industrial park load center (9), an air source heat pump (7) and an electric refrigerating airconditioner (8), the flue gas output end of the natural gas distributed energy station (1) is connected with a waste heat recycling device (2), and the steam output end of the waste heat recycling device (2) is connected with a steam type lithium bromide refrigerating unit (5) and a steam heat storage unit (4); the hot water output end of the waste heat recycling device (2) is connected with a domestic hot water storage unit (3); the power output end of a roof distributed photovoltaic device (6) is connected with the input ends of the industry park or industrial park load center (9), the airsource heat pump (7) and the electric refrigerating air conditioner (8). By the park-level comprehensive energy supply system, the technical problems that the prior art excessively depend on large-power-grid power supply, large-area power failure is caused easily, energy use reliability is poor and the like are solved.

The invention relates to a multi-heat-source indirect PVT (Pressure-Volume-Temperature) heat pump system suitable for buildings. The multi-heat-source indirect PVT heat pump system comprises a power grid, an inverter, a PVT heat collector tile, a heat-exchanging pipeline, a roof or inclined surface, an electromagnetic three-way valve A, a heat collector water box, a phase-change heat-storage device, a heat pump evaporator, a circulating water pump, an electromagnetic three-way valve B, an air-cooled heat exchanger A, an electromagnetic three-way valve C, a compressor, an air-cooled heat exchanger B, an electromagnetic three-way valve D, a domestic water tank, a water-cooled condenser, a pipeline A, a water-water heat exchanger, a pipeline B, an electromagnetic three-way valve E, an expansion valve, an electromagnetic three-way valve F, a tile convex part, a photovoltaic module, a flat plate heat pipe, a heat-insulating material, heat-conducting glue, a tile plane part, a tile, phase-change microcapsules, a metal net box, a phase-change material and a shell. The multi-heat-source indirect PVT heat pump system has the beneficial effects that mounting and maintenance are facilitated;true building integration is realized under the condition of not damaging the functions of keeping out wind and rain and insulating heat of the conventional tile; and the application prospect of a PVTtechnology is expanded.

A self-resetting energy-dissipating support includes inner restraint pipes, outer restraint pipes, wide ear plates, shear rivets, lead sand, outer restraint pipe ear plates, partitions, fixed end plates, cables, clamps and anchor plates. In the factory, the wide lugs, shear rivets and inner restraint pipes are welded and assembled first, and the outer restraint pipe ear plates, partitions and outer restraint pipes are welded and assembled, and then the inner restraint pipes are arranged in the outer restraint pipes, and the outer restraint pipes are assembled. The restraint tube is re-welded and connected, and then the cable of the self-resetting system is inserted into the inner restraint tube, and then passed through the opening of the fixed end plate, and the fixed end plate is tightly pressed against the two ends of the outer restraint tube by applying prestress, tensioning The cable is anchored to the anchor plate with a clamp, and finally the lead sand is injected through the pouring hole to form a lead core, and the assembly is completed. The welding and assembling process of the present invention is all completed in the factory, and has the advantages of remarkable energy consumption effect due to the friction between the shear rivet and lead sand, strong self-resetting ability and high industrial production efficiency.

The invention discloses an operation optimization method for a sewage recycling type comprehensive energy system. The method comprises the following steps: S1, constructing a sewage recycling type comprehensive energy system architecture; S2, constructing a sewage recycling type comprehensive energy system operation model; S21, establishing an objective function, and establishing a cost minimization function; S3, constraining the model; S31, the equipment operation constraint comprising S311, a biogas combustion engine constraint; s312, sewage source heat pump constraint; S313, energy storageoperation constraint; s32, the energy supply and demand transmission constraint comprising S321, an electric load supply and demand balance constraint, S322 an energy unit output / transmission capacityconstraint; S323, a line unidirectional transmission constraint; and S4, applying an intelligent particle swarm optimization algorithm to an optimization algorithm of the model, and applying a paretooptimization algorithm to optimize the multi-objective planning problem so as to realize better solution of the model.

The invention discloses a method of fabricating a 3D bulk silicon microcapacitor, which comprises steps of fabricating of a 3D bulk silicon substrate structure, introduction of an active material forthe 3D structure and three kinds of packaging and integration of the capacitor. Firstly, deep silicon etching is carried out to obtain a hollow 3D silicon-based comb substrate; the upper surface, thelower surface and the side wall of the comb are then coated with a carbon-based conductive layer and the active material; and finally, a gel-like electrolyte is applied to the surface, packaging and integration are carried out, and the 3D bulk silicon microcapacitor is obtained. In comparison with the conventional comb planar structure, the longitudinal height of the microcapacitor electrode is extended, the available electrode surface area is expanded from a two-dimensional plane to a three-dimensional surface and longitudinal side wall, the 3D electrode can carry more active material, the specific capacitance and the specific energy density are thus enhanced, the 3D comb structure active material introduction method is of great significance for the research of 3D capacitors, and the proposed packaging and integration method ensures the stability and the service life of the capacitor.

The invention discloses a heat-convertible heat pipe exchanger and a working method of the heat-convertible heat pipe exchanger. Tail gas arrives at a gas chamber through a gas inlet pipe. Working media in evaporation sections of heat pipes absorb heat to vaporize, flow to condensation sections under the action of steam pressure and carry the heat to the condensation sections. Working medium steam in the condensation sections cools, is liquefied, releases heat and transfers the heat to heating media, so the temperature of the heating media rises. The working media flow back to the evaporation sections to participate in a next heat cycle under the action of capillary force of liquid absorption cores of the heat pipes. The heating media at a rising temperature are discharged from a liquid drain pipe and subjected to heat transfer with a generator, the temperature of the heating media is lowered, and then the heating media flow into a liquid collection tank through a liquid inlet pipe and receive the heat of the tail gas cyclically. By the adoption of the heat-convertible heat pipe exchanger, refrigeration is not needed or a refrigeration load is small, so the contact area between the evaporation sections of the heat pipes and the gas chamber is reduced; the part needing heat requires much heat, so the contact area between the evaporation sections of the heat pipes and the gas chamber is increased. The heat exchange amount of the heat-convertible heat pipe exchanger can be controlled, and the heat-convertible heat pipe exchanger can meet the requirement of the part needing heat for energy supply on different conditions and has very high safety and flexibility.

The invention discloses a comprehensive energy system robust planning method and system, and the method comprises the following steps: S100, obtaining load demand data, equipment types and equipment model data based on the land area and function demand information of a comprehensive energy system planning region; S200, based on the data obtained in the step S100, eliminating the influence of loaduncertainty through a pre-constructed comprehensive energy system robust planning model, and planning a comprehensive energy system; and S300, obtaining the specific model and capacity configuration of the equipment in the comprehensive energy system planning area. The actual architecture of the comprehensive energy system is reasonably represented based on the improved energy concentrator model,and the comprehensive energy system robust planning model embedded with the economic operation strategy is constructed by further considering the uncertainty of the load. According to the invention, the utilization efficiency of urban comprehensive energy is improved, the construction cost and the energy supply cost of an urban comprehensive energy system are reduced, and the reasonable development of urban energy internet structure construction and planning technologies is promoted.

A process for the conversion of a hydrocarbon to CO2 and electrical power is described which includes subjecting a gas mixture of a hydrocarbon feed stream and steam to an integrated reforming process including stages of steam reforming in a gas-heated reformer and secondary reforming to generate a reformed gas mixture, increasing the hydrogen content of the reformed gas mixture by subjecting it to one or more water-gas-shift stages, cooling the resulting hydrogen-enriched reformed gas and separating condensed water therefrom, passing the resulting de-watered hydrogen-enriched reformed gas to one or more stages of carbon dioxide separation to recover carbon dioxide, combusting the remaining hydrogen-containing fuel stream with an oxygen containing gas in a gas turbine to generate electrical power and passing the exhaust gas mixture from the gas turbine to a heat recovery steam generation system that feeds one or more steam turbines to generate additional electrical power.

The invention discloses a power and cold air combined supply system driven by a medium and low temperature heat source. The power and cold air combined supply system comprises a medium and low temperature heat source circulation system, an LNG cold energy utilization circulation system, a Kalina circulation system, an organic Rankine circulation system, an external ejection type refrigeration circulation system and an internal ejection type refrigeration circulation system; the Kalina circulation system is coupled with the medium and low temperature heat source circulation system through a boiler and a superheater; the organic Rankine circulation system is coupled with the medium and low temperature heat source circulation system through an ORC preheater, and the organic Rankine circulation system is coupled with the Kalina circulation system through an ORC evaporator; an ejection flow of an ejector of the internal ejection type refrigeration circulation system is medium-high pressure ammonia gas led out from a certain position in the middle of a turbine in the Kalina circulation system, and the ejected flow is a two-phase flow of an outlet of a first evaporator; and an ejection flow of an ejector of the external ejection type refrigeration circulation system is ammonia water at an outlet of a condenser in the Kalina circulation system, and an ejected flow is a two-phase mixture at an outlet of an evaporator.

The invention provides a solar energy thermochemistry combined cool-heat-electricity system. Solar energy and fossil fuel are utilized complementarily based on a chemical energy and physical energy cascade utilization principle, exhaust heat of a high-temperature section of an internal combustion engine is stored in a way of sensible heat of conduction oil, and when synthesis gas supplied by a solar energy thermochemistry reaction unit cannot meet the user demand, chemical recuperation cycle driven by the sensible heat of the conduction oil is adopted to complement the amount of synthesis gas; the power capability of the solar energy and middle-low temperature exhaust heat is improved, the loss of available energy during a fuel combustion process is reduced, the influence of solar energy intermittence and instability on the operational stability of a solar energy utilization system is reduced to some extent, the operational reliability of the system is improved, the efficient storage of solar energy and the flexible control of cool-heat-electricity output ratio are realized, and the real-time changing energy using demand of a user can be met.

The invention discloses a double-limb thin-wall pier with a swing self-resetting function and for a rigid-frame bridge, belonging to the technical field of piers. The double-limb thin-wall pier comprises: a bearing platform; a girder, which is arranged right above the bearing platform; a double-limb pier, which is provided with two pier columns that are parallel to each other and used for supporting the girder, and structures at the joints of the double-limb pier, the bearing platform and the girder are swing structures and can swing at the joints; prestressed reinforcing steel bars, which are longitudinally fixed in each pier column of the double-limb pier, wherein one ends of the prestressed reinforcing steel bar extend out of the end parts of the pier columns of the double-limb piers, penetrate through the joints and extend into the corresponding bearing platform or the girder to be fixed; and ductile steel bars, which are arranged at the joints of the double-limb pier, the bearing platform and the girder, wherein one ends of the ductile steel bars extend into the end parts of the pier columns of the double-limb pier to be fixed, and the other ends of the ductile steel bars extend into the corresponding bearing platform or girder to be fixed. Such a swing pier self-resetting system is applicable to high-pier and large-span continuous rigid frame bridges, has great significance in improving the safety and disaster prevention capacity of high-pier and large-span bridges in mountainous areas, and is controllable in earthquake damage and high in post-earthquake recovery speed.

The invention belongs to the technical field of coal power and particularly relates to a coal-fired power plant peak regulation system based on an integrated heat storage system. The coal-fired powerplant peak regulation system mainly comprises the integrated heat storage system, a coal-fired boiler, a high-and-medium-pressure cylinder, a low-pressure cylinder, a condenser, a power generator andelectrothermal conversion equipment. The integrated heat storage system is used to store heat of heat source such as boiler flue gas, high-and-medium-pressure cylinder inlet stream, low-pressure cylinder inlet steam and the electrothermal conversion equipment, and therefore, the task of peak regulation of a thermal power unit can be completed according to needs. According to the coal-fired power plant peak regulation system, a peak regulation requirement and an energy demand can be considered at the same time, a heat storage heat source and a heat storage user are flexibly selected, and the peak regulation range and the operational reliability of the power generation of a coal-fired power unit can be significantly improved.