4results about How to "Reduce steam" patented technology

This utility model discloses a heat recovery system for cold hydrogenation products, relating to the technical field of polysilicon production equipment. Its main objective is to provide a heat recovery system for cold hydrogenation products that can reduce steam consumption and extend the service life of the cooler. The main technical solution of this utility model is as follows: a heat recovery system for cold hydrogenation products, comprising: a fluidizing component, with a fluidized bed connected to a quenching component; a coarse separation component, with the middle part of a reboiler connected to the quenching component, the upper end of the reboiler connected to the coarse separation column, and a loading tank connected to the lower part of the reboiler; and a heat exchange component, including a distillation pipe, a first heat exchanger, and a first cooler. One end of the distillation pipe is connected to one end of the shell side of the first heat exchanger, and the other end is connected to the coarse separation column. One end of the tube side of the first heat exchanger is connected to the loading tank, and the other end is connected to the first cooler. This utility model is mainly used for cold hydrogenation products.

The present application belongs to the field of coal-fired power generation and energy storage technology, and particularly relates to a peak shaving device coupled with a supercritical carbon dioxide energy storage system of a coal-fired power unit. The present application uses supercritical carbon dioxide (sCO2) as an energy carrier to build a closed Brayton cycle comprising a compressor, a turbine, a heat exchanger and a storage tank, thereby improving the cycle thermal efficiency of the energy storage medium, avoiding the risks of solidification, leakage and corrosion of the working medium, and improving the safety of system operation. The device directly communicates the hot side inlet of the first heat exchanger with the inlet of the high-pressure cylinder of the coal-fired power unit, directly heats the sCO2 compressed by the compressor with high-temperature and high-pressure steam at the highest parameter of the boiler outlet, and does not need to be supplemented with heating. The waste heat of the sCO2 turbine exhaust is used to heat the feed water at the outlet of the deaerator and the condensate water at the outlet of the condensate water pump in sequence through the designed second and third heat exchangers, thereby reducing the amount of steam originally required to be extracted by the steam turbine and greatly increasing the power generation.

The invention relates to the technical field of low carbon and energy conservation of thermal power plants, in particular to a steam superheat utilization system and method for carbon dioxide capture of a thermal power plant. The system comprises a heat regeneration module, a steam turbine set, a carbon capture module and a superheat degree heat exchange module, the heat regeneration module comprises a heat regeneration pipeline and a plurality of heat regenerators on the heat regeneration pipeline, the steam turbine set is connected with the heat regenerators and provides extracted steam to heat boiler feed water and / or condensed water flowing through the boiler, and the carbon capture module is provided with a reboiler. The superheat degree heat exchange module is provided with at least one superheat degree heat exchanger, one side of the superheat degree heat exchanger is connected between the steam turbine set and the reboiler in series, and the other side of the superheat degree heat exchanger is communicated with the heat return pipeline. The superheat degree of steam extraction can be recycled through the superheat degree heat exchanger to be used for preheating a working medium in the heat regeneration pipeline, the steam extraction requirement of the heat regeneration module is reduced, and therefore the power generation output and the overall heat efficiency of a turboset are improved.

The utility model relates to a kind of steam valve and the pot of being equipped with steam valve, steam valve is used to set in the steam exhaust of pot, including valve seat and the valve cover fixed to the valve seat;The space enclosed by the valve seat and valve cover constitutes cooling cavity;The steam valve further includes steam inlet, steam outlet and cold air inlet being opened on cooling cavity;The steam inlet and the steam outlet have preset interval, or, the steam inlet and steam outlet are provided with flow guide structure, so that steam flow from the steam inlet passes the area of cold air inlet again flow to the steam outlet.The steam valve disclosed in the utility model embodiment, steam flows into cooling cavity from steam inlet, must pass the area of cold air inlet again flow to steam outlet, external cold air is inhaled into cooling cavity, steam can be quickly cooled and condensed, reduce the steam volume of final discharge, avoid the liquid in the pot overflow.