Thermoelectric decoupling system and method
A power generation sub-system and sub-system technology, applied in the field of thermoelectric decoupling systems, can solve problems such as the limitation of electrothermal operation domains of units, and achieve the effect of improving flexibility and flexible conversion
Pending Publication Date: 2022-06-07
XIAN THERMAL POWER RES INST CO LTD +1
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Problems solved by technology
In terms of thermoelectric decoupling technology, although cylinder-cutting heating improves the unit’s electrical output adjustment capability, since the unit is directly switched from steam extraction heating to cylinder-cutting heating, there is no transition state in the middle, and the electric heating operation area of the unit is limited
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[0051] Exemplary embodiments of the present application are described below with reference to the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and should be considered as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted from the following description for clarity and conciseness.
[0052] It should be noted that, among the related technologies, coal-fired power flexibility transformation is the trend of power production development under the background of energy transformation, mainly involving technologies such as low-load stabilizing combustion, increasing unit load rate changes, thermo-decoupling, and energy storage and peak regulation. ...
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The invention discloses a thermoelectric decoupling system and method, and relates to the technical field of combined heat and power generation. According to the specific implementation scheme, the power generation subsystem and the shell side of the steam-water heat exchanger are connected through a circulation pipeline to form a first loop, and the power generation subsystem and the heat supply subsystem are connected through a circulation pipeline to form a second loop; a cold well submersible pump is connected between an outlet of the cold well and a pipe side inlet of the steam-water heat exchanger; an outlet of the heat supply subsystem is connected with an inlet of the cold well; a pipe side outlet of the steam-water heat exchanger is connected with an inlet of the hot well, and a hot well submersible pump is connected between an outlet of the hot well and an inlet of the heat supply subsystem. According to the thermoelectric decoupling system, flexible conversion of energy among steam heat energy, underground water heat energy and heat supply network water heat energy is achieved, and the flexibility of the thermoelectric decoupling system is improved.
Description
technical field [0001] The present application relates to the technical field of cogeneration, and in particular, to a thermoelectric coupling system and method. Background technique [0002] Among the related technologies, the transformation of coal power flexibility is the trend of power production development in the context of energy transformation, mainly involving technologies such as low-load stabilizing combustion, increasing the variable load rate of units, thermal decoupling, and energy storage and peak regulation. In terms of thermo-decoupling technology, although cylinder-cut heating improves the unit’s electrical output regulation capability, because the unit is directly switched from extraction steam heating to cut-cylinder heating, there is no transition state in between, and the unit’s electric heating operation domain is limited. SUMMARY OF THE INVENTION [0003] To this end, the present application provides a system and method for thermo-decoupling. [00...
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IPC IPC(8): F22D1/50F22D11/06F24D15/00F24D18/00F28D20/00F01K11/00F01K7/02F01K17/02F24D101/10
CPCF22D1/50F22D11/06F24D15/00F28D20/00F01K11/00F01K7/02F01K17/02Y02E20/14Y02E60/14
Inventor 王妍吕凯马汀山许朋江石慧薛朝囡邓佳张建元
Owner XIAN THERMAL POWER RES INST CO LTD