A Sensible Heat Storage Direct Steam Generation System and Method Based on Series Regulation
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A technology of series regulation and generation system, applied in the direction of steam generation method, steam generation, heat storage equipment, etc., can solve the problems of unstable output power, reduction of temperature of heat storage body, reduction of heat exchange power, etc., so as to facilitate design and calculation , Improve the adaptability, the effect of simple heat transfer process
Active Publication Date: 2017-12-12
ZHEJIANG UNIV
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The structure of this system is relatively simple, and its operation safety is higher than that of the phase-change heat transfer system. However, the main problem is that the temperature of the heat storage body continues to decrease during the heat transfer process, resulting in a lower heat transfer power under the condition of the same heat transfer area. It can only be used in occasions that do not require high steam parameters, and cannot meet the needs of heat utilization systems that have strict requirements on steam parameters and output power, such as heating boilers, etc.
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[0039] The present invention will be further elaborated and illustrated below in conjunction with the accompanying drawings and specific embodiments. The technical features of the various implementations in the present invention can be combined accordingly on the premise that there is no conflict with each other.
[0040] like Figure 1-2 As shown, a sensible heat storage direct steam generation system based on series adjustment, including an outlet header 1, an outlet connecting pipe 2, a heat storage body 3, a heat exchange pipe 4, a first temperature sensor 5, and a sealing insulation layer 6 , three-way valve 7, check valve 8, inlet header 9, circulating water pump 10, flow meter 11, control cabinet 12, water supply connection pipe 13, reservoir 14, second temperature sensor 15, third temperature sensor 16; Heat exchange tubes 4 arranged in a serpentine shape are installed in the heat storage body 3 . The heat storage body 3 is covered with a sealed insulation layer 6, a...
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Abstract
The invention discloses a sensible heat storage type direct steam generation system and method based on series-connection adjustment. The system comprises an outlet header, an outlet connection pipe, a heat storage body, a heat exchange pipe, a first temperature sensor, a sealed heat-preserving layer, a three-way valve, a check valve, an inlet header, a circulating water pump, a flowmeter, a control cabinet, a water supplementing connection pipe, a water storage pond, a second temperature sensor and a third temperature sensor. A pipeline series-connection method is adopted for the system, by means of the method that the heat exchange area is increased in the flowing direction, the problem that because the temperature of the heat storage body is lowered, the heat exchange coefficient and the heat exchange power are reduced is solved; and in the heat exchange process of the system, the flow in single pipelines is not changed, the heat exchange process is relatively simple, and design and calculation of the system are convenient. By means of implementation of the system, the running cost of a traditional electric boiler can be effectively lowered, after calculation, the cost generated by adopting the steam system is equivalent to that generated by adopting a natural gas system, and broad market application prospects are achieved.
Description
technical field [0001] The invention relates to a sensible heat storage type direct steam generation system and method based on series adjustment, and belongs to the technical field of sensible heat storage and heat exchange. Background technique [0002] With the promotion of energy saving and emission reduction strategies, traditional small and medium-sized coal-fired boilers with high energy consumption and high pollution will be gradually replaced and eliminated, which will bring huge market space to the heating market. At present, the heat supply demand of the market mainly depends on the large-scale heat supply units of thermal power plants, but this mechanism requires a long period of planning and construction, and the market flexibility is poor. For decentralized heating demand, natural gas boilers, electric boilers and solar boilers have huge room for development, but natural gas boiler systems have insufficient gas supply, electric heating boilers have high electri...
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