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Ultra-supercritical straight condensing unit containing fused salt energy storage system and working method of ultra-supercritical straight condensing unit

A technology of ultra-supercritical and pure condensing units, applied in mechanical equipment, steam turbines, machines/engines, etc., can solve problems such as poor peak shaving capability and slow system response rate, achieve rapid response, improve service level, and increase load The effect of response rate

Pending Publication Date: 2022-08-09
XIAN THERMAL POWER RES INST CO LTD +2
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The ultra-supercritical unit has the characteristics of high efficiency and environmental protection, representing the highest level of current coal-fired units, but the peak-shaving ability of the ultra-supercritical pure condensing unit is poor, and the response rate of the system under variable load is slow

Method used

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  • Ultra-supercritical straight condensing unit containing fused salt energy storage system and working method of ultra-supercritical straight condensing unit
  • Ultra-supercritical straight condensing unit containing fused salt energy storage system and working method of ultra-supercritical straight condensing unit

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the The embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.

[0026] It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one...

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Abstract

The invention discloses an ultra-supercritical straight condensing unit containing a fused salt energy storage system and a working method of the ultra-supercritical straight condensing unit. The ultra-supercritical straight condensing unit comprises an ultra-supercritical straight condensing unit body and a fused salt heat storage system. The ultra-supercritical straight condensing unit comprises an ultra-supercritical boiler, a high-pressure cylinder, an intermediate-pressure cylinder and a low-pressure cylinder which are connected in sequence; the fused salt heat storage system comprises a fused salt-steam high-temperature heat exchanger and a fused salt-steam low-temperature heat exchanger, and an outlet of the ultra-supercritical boiler and a steam extraction outlet of the high-pressure cylinder are connected with a steam side inlet of the fused salt-steam high-temperature heat exchanger; a steam side outlet of the fused salt-steam high-temperature heat exchanger is connected with an inlet of the medium-pressure cylinder and a steam side inlet of the fused salt-steam low-temperature heat exchanger; a fused salt side inlet and outlet of the fused salt-steam high-temperature heat exchanger is circularly connected with an inlet and outlet of a high-temperature fused salt storage tank, a fused salt side inlet and outlet of the fused salt-steam low-temperature heat exchanger is circularly connected with an inlet and outlet of a low-temperature fused salt storage tank, and heating devices are arranged on the high-temperature fused salt storage tank and the low-temperature fused salt storage tank. And flexible operation of the ultra-supercritical straight condensing unit under the variable load working condition is realized.

Description

technical field [0001] The invention belongs to the fields of conventional power generation technology and molten salt heat storage technology, and relates to an ultra-supercritical pure condensing unit containing a molten salt energy storage system and a working method thereof. Background technique [0002] The flexible operation of coal-fired generator set itself is poor, and there is a hysteresis characteristic of load response. The flexible operation capability of coal-fired units is an effective measure to resolve the conflict between thermal power and renewable energy development. Ultra-supercritical units have the characteristics of high efficiency and environmental protection, and represent the highest level of current coal-fired units. However, ultra-supercritical pure condensing units have poor peak-shaving capabilities, and the response rate of the system under variable loads is slow. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K11/02F01K13/02F01D15/10F28D20/00
CPCF01K11/02F01K13/02F01D15/10F28D20/0034F28D2020/0047Y02E60/14
Inventor 周科李银龙杨冬曹志华李明皓鲁晓宇郦忠伟白永刚张波
Owner XIAN THERMAL POWER RES INST CO LTD
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