Electric heat storage type superheated steam system and method thereof
A superheated steam and electric heat storage technology, which is applied in heat storage technology and steam supply and heating fields, can solve the problems of unstable heat exchange, low heat storage density, large space occupation, etc., achieve compact structure, optimize heat transfer efficiency, and use convenient effect
Inactive Publication Date: 2020-05-22
ZHEJIANG UNIV
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Problems solved by technology
Chinese patent CN109855457 A proposes a heat storage superheated steam generation system including two heat exchangers: a saturated steam heat exchanger and a superheated steam heat exchanger. The problem of large occupancy, that is, the heat storage density of the unit’s actual utilization site is still low
Chinese patent CN 105953202 A and Chinese patent CN106016219 A proposed an integrated direct steam generation system using graphite as heat storage material, and solved the problems of large land occupation and unstable heat transfer by means of direct heat exchange and pipeline series-parallel connection
Due to the different heat transfer methods, the integrated design has the same heat storage temperature, and there is a problem of further optimization of heat transfer efficiency
Method used
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[0032] like figure 1As shown, the main water pipe 1, the water supply tank 2, the water supply pipe 3, the water supply inlet valve 4, the water supply pump 5, the heat storage steam heat exchanger 6, the wet steam outlet connection pipe 7, the steam outlet check valve 8, and the gas-liquid separator 9. Saturated steam connecting pipe 10, pressure regulating valve 11, superheated steam connecting pipe 12, drain connecting pipe 13, steam trap 14, drain bypass 15, bypass valve 16, drain replenishment inlet valve 17, drain replenishment inlet check valve 18.
[0033] like figure 2 As shown, the heat storage steam heat exchanger 6 includes a heat storage steam generator 61, a heat storage superheated steam heat exchanger 62, and a heat storage insulation layer 63, wherein the heat storage steam generator 61, the heat storage superheated steam heat exchanger 62 It also includes an electric heating rod 64 , a two-phase flow boiling heat exchange pipe 65 , a first heat storage mat...
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Abstract
The invention discloses an electric heat storage type superheated steam system and a method thereof. The system comprises a main water pipe, a water replenishing tank, a water replenishing pipe, a water replenishing pump, a heat storage steam heat exchanger, a gas-liquid separator, a pressure regulating valve, a steam trap, a connecting pipeline and an auxiliary valve. The heat storage steam heatexchanger comprises a heat storage steam generator and a heat storage superheated steam heat exchanger, can produce superheated steam with certain pressure, and realizes heat storage and utilization in a valley electricity period; meanwhile, the heat storage steam generator and the heat storage superheated steam heat exchanger are effectively isolated through a heat storage heat insulation layer,the temperature influence of the steam generator on the superheated steam heat exchanger is weakened, the quality of produced superheated steam and the steam generation efficiency of the superheated steam heat exchanger are guaranteed, and great application prospects in the field of superheated steam supply are achieved.
Description
technical field [0001] The invention relates to the fields of heat storage technology and steam heating technology, in particular to an electric heat storage superheated steam system and a method thereof. [0002] technical background [0003] As the requirements for cleaner production and environmental protection become more and more stringent, the traditional coal-fired heating steam and heating methods are gradually being phased out, and the development of clean steam heating technologies such as electric heating and natural gas heating has attracted widespread attention. At the same time, my country's natural gas heating is facing the problems of insufficient gas sources and high heating prices, while the direct heating electric steam heating technology is expensive, and renewable energy heating is subject to temporal discontinuities, spatial differences and operational constraints. Instability constraints. [0004] At the same time, the electricity-steam-supply heating t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F22B1/28F22B1/02F22B37/26F22G1/16
CPCF22B1/028F22B1/28F22B37/26F22G1/165
Inventor 赵建法张良乔龙彪
Owner ZHEJIANG UNIV