Participant power grid thermal power plant based on thermoelectricity peak shifting and heat supply network heat storage, and peak shifting method
A technology for thermal power plants and power grids, which is applied in the field of combined heat and power generation to achieve the effect of alleviating the lack of peak shaving capacity
Active Publication Date: 2018-05-11
ZHEJIANG UNIV
View PDF10 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0014] The above-mentioned intellectual property achievements have reference value; however, there is a lack of exploration for power grid peak regulation according to the characteristics of thermal power plants in eastern regions such as Zhejiang, and there are limitations; therefore, it is necessary to make further innovative designs
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0081] Such as figure 1As shown, the participating power grid peak-shaving cogeneration plant based on thermoelectric peak staggering and heat storage in the heat network consists of a superheated steam boiler 101, a pumped-back steam turbine 102, a generator 103, a steam-driven feed water pump 104, a deaerator 105, and a high-pressure heater No. 1 106. No. 2 high-pressure heater 107, shaft seal heater 108, water heater 109, medium-pressure heating main pipe 111, low-pressure heating main pipe 112, medium-pressure steam desuperheating device 121, low-pressure steam desuperheating device 122, Composed of thermal power plant steam pipeline, thermal power plant water supply pipeline, thermal power plant monitoring peak regulation center, superheated steam boiler 101 model NG-500 / 10.1-M, pumping back steam turbine 102 model EHNG71 / 63 / 160, generator 103 model 50WX18Z-054LLT , power 50MW; the steam pipeline of thermal power plant includes pipeline 200 from boiler to steam turbine,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a participant power grid thermal power plant based on thermoelectricity peak shifting and heat supply network heat storage, and a peak shifting method. The thermal power plantconsists of a superheated steam boiler, a back-draft turbine, a power generator, a steam-driven feed pump, a deaerator, first and second high-pressure heaters, a shaft seal / hydraulic heater, a medium / low pressure heat supply mother tube, a medium / low pressure steam temperature-reducing device, a thermal power plant monitoring and peak shifting center. The thermal power plant participates in the peak shifting of the power grid on the basis of a thermal load based on thermoelectricity peak shifting through the limited peak shifting capability of the turbine and boiler. Through the heat storage characteristics of a heat supply network, the thermoelectric coupling relation is pulled open, and the further peak shifting of the power grid is executed. A mode of ordering power by heat changes a thermoelectric coordination mode-a mode of participating the peak shifting of the power grid based on the thermoelectricity peak shifting and the heat storage characteristics of the heat supply network.The method facilitates the alleviation of the scarcity of the peak shifting capacity of the power grid. The participant power grid thermal power plant based on thermoelectricity peak shifting and heat supply network heat storage is based on the existing equipment and a conventional flow. There is no need of secondary equipment investment and secondary training.
Description
technical field [0001] The invention belongs to the technical category of combined heat and power generation; in particular, it refers to a thermal power plant and a peak-shaving method for industrial heat users in industrial agglomeration areas, based on the peak shift load of thermal power and the heat storage of the heat network, and participating in the peak regulation of the power grid. Background technique [0002] my country's resource endowment of "rich in coal, poor in oil, and low in gas" will definitely maintain the coal-based power generation method in the foreseeable time. The sustainable development of energy production and consumption depends on the development of renewable low-carbon energy on the supply side; it also looks forward to high-efficiency and low-pollution technologies on the demand side. Under the existing technical conditions, the energy efficiency of boilers, steam turbines, and generators is ≥94.8%, 90%, and 99%; the comprehensive energy effic...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H02J3/28H02J3/46
CPCH02J3/28H02J3/46
Inventor 李战铂冯达黄懿民吴明光
Owner ZHEJIANG UNIV