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Efficient heat storage device

A heat storage device and high-efficiency technology, applied in the direction of heat storage equipment, indirect heat exchangers, heat exchanger types, etc., can solve the problem of weakening the heat storage capacity of the heat storage device, and achieve the purpose of facilitating the flexible transformation and enhancing the overall supply. Thermal capacity, good economy effect

Pending Publication Date: 2022-07-08
CCTEG CLEAN ENERGY CO LTD
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Problems solved by technology

However, most of the existing heat storage tanks are independent from the steam extraction heat exchange system of the turbine and the boiler water supply system. The heat storage device and the heat exchange system only exchange heat but not water; The heat storage capacity of the heat storage device is weakened; at the same time, the exhaust steam after the heat exchange between the steam and the cooling medium is directly discharged, and the energy recovery utilization rate needs to be further improved

Method used

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Embodiment 1

[0023] Example 1: as Figure 1-2As shown, a high-efficiency heat storage device is characterized in that it includes a high-efficiency steam-water heat exchanger 4 for high-efficiency heat exchange. While achieving high-efficiency heat exchange in the high-efficiency steam-water heat exchanger 4, the long The problem of easy scaling and reduced heat exchange efficiency during time operation; the steam inlet at the top of the high-efficiency steam-water heat exchanger 4 is connected with the steam inlet pipeline 1; the outside of the tube wall of the steam inlet pipeline 1 is downward in the length direction. A steam regulating valve group 2, a temperature monitoring device 18, a steam metering device 3 and a pressure monitoring device 17 are arranged in sequence; the steam regulating valve group 2 can perform remote dynamic real-time adjustment according to the steam metering device 3 to control the entry of high-efficiency steam-water heat exchange steam parameters of the ste...

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Abstract

The invention relates to the technical field of thermoelectric heat supply, in particular to an efficient heat storage device for boiler peak regulation and heat storage. The efficient heat storage device comprises a steam adjusting and metering unit, a steam-water heat exchange unit, a high-performance heat storage unit, a dead steam recovery unit, a hot water output unit and a matched instrument monitoring system. The system meets the requirements of peak regulation, heat storage, water storage and water supplement of the coal-fired boiler, the load regulation range of the boiler is widened, and the anti-risk capacity of a boiler water treatment system is enhanced. Low-load waste heat of the boiler can be efficiently stored through the heat storage water tank within a certain period of time and is output when the load is high, the steam exhaust phenomenon of ultralow-load operation of the boiler can be effectively avoided, and the heat supply capacity of the boiler when the load is high is enhanced.

Description

technical field [0001] The invention relates to the technical field of thermoelectric heating, in particular to a high-efficiency heat storage device for boiler peak regulation and heat storage. Background technique [0002] At present, the massive abandonment of wind and light caused by the "wind-solar-heat conflict" has become one of the important factors restricting the development of new energy in my country, which is contrary to the goal of "carbon peaking and carbon neutrality" in China. The constraint of "determining electricity by heat" has resulted in a significant reduction in its peak shaving capability. In addition, a large part of the regional central heating boiler rooms in my country have to discharge steam to the air during the low-load period due to the significant day and night changes in the downstream heat load demand, resulting in a great waste of energy and total emissions of air pollutants and carbon dioxide. The amount also increased. Therefore, under...

Claims

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Application Information

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IPC IPC(8): F28D20/00
CPCF28D20/0034F28D2020/0065Y02E60/14
Inventor 何海军马洪洲曾鑫简洪生孙宇杨允向艳蕾殷卫峰范玮徐通周忠波贾传凯闫文瑞唐钢锐赵静刘尧祥武广龙赵子东李峥李振武继龙杨若溪
Owner CCTEG CLEAN ENERGY CO LTD
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