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Thermoelectric decoupling system capable of improving energy utilization quality of thermoelectricity plant

A thermal power plant and energy technology, which is applied in the direction of steam engine devices, machines/engines, mechanical equipment, etc., can solve the problems of power balance difficulties in power grid valleys, difficulties in peak regulation of the power grid, and insufficient peak regulation capabilities, so as to improve heating peak regulation capabilities, Achieve decoupling operation and avoid quality loss

Active Publication Date: 2017-09-19
XIAN XIRE ENERGY SAVING TECH
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AI Technical Summary

Problems solved by technology

Traditional coal-fired thermal power units operate in the mode of "heat-based power generation", and the peak-shaving capacity is only about 10%. The ability to participate in peak-shaving is insufficient, which affects the consumption of new energy sources such as wind power.
The above situation has led to difficulties in peak regulation of the power grid, making it extremely difficult to balance the power grid in low valleys, and increasing the risk of safe operation of the power grid; Structural transformation and upgrading; the contradiction between power grid peak regulation and thermal power unit heating is prominent, affecting the safety of residents’ heating in winter, and there is a risk of causing people’s livelihood problems. Therefore, it is imperative for thermal power units to realize the decoupling of heat production and power production, so design is urgently needed Develop a system that can realize the decoupled operation of power production and heat production, and can significantly improve the heat supply peak-shaving capacity of thermal power units

Method used

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  • Thermoelectric decoupling system capable of improving energy utilization quality of thermoelectricity plant

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Embodiment Construction

[0015] The present invention is described in further detail below in conjunction with accompanying drawing:

[0016] refer to figure 1 , the thermoelectric decoupling system for improving the energy utilization quality of a thermal power plant according to the present invention includes a boiler 14, a high-pressure cylinder HP, a primary bypass regulating valve 7, a first additional high-pressure heater 51, a medium-pressure cylinder IP, and a second additional high-pressure heating device 52, secondary bypass regulating valve 8, heating network circulating water system, low-pressure cylinder LP and feedwater regulating valve 6; the main steam outlet of boiler 14 is connected with the inlet of high-pressure cylinder HP and the inlet of primary bypass regulating valve 7 , the outlet of the primary bypass regulating valve 7 communicates with the heat release side inlet of the first additional high pressure heater 51, the outlet of the high pressure cylinder HP and the heat relea...

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Abstract

The invention discloses a thermoelectric decoupling system capable of improving energy utilization quality of a thermoelectricity plant. The system comprises a boiler, a high voltage cylinder, a primary bypass adjusting valve, a first additional high voltage heater, a medium voltage cylinder, a second additional high voltage heater, a secondary bypass adjusting valve, a hot net circulating water system, a low voltage cylinder and a water feeding adjusting valve. According to the system disclosed by the invention, decoupling operation of power production and thermal production can be realized, so that heat supply peak shaving ability of a thermoelectric unit can be obviously improved.

Description

technical field [0001] The invention relates to a thermoelectric decoupling system, in particular to a thermoelectric decoupling system for improving the energy utilization quality of a thermal power plant. Background technique [0002] Coal-fired thermal power generation will be an important part of my country's energy system now and for a long period of time in the future. However, with the slowdown in the growth of electricity demand in the whole society and the large-scale development of renewable energy, the utilization hours of thermal power will decrease year by year. To improve the operational flexibility of thermal power units, it will be the general trend to participate in large-scale deep peak shaving of power grids. In my country's "Three Norths" region, the proportion of combined heat and power units is large, and peak-adjustable power sources such as hydropower and pure condensing units are scarce. Difficulty in peak regulation has become the most prominent pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K13/00F01K7/44
CPCF01K7/44F01K13/00
Inventor 刘永林黄嘉驷屈杰王伟常东锋
Owner XIAN XIRE ENERGY SAVING TECH
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