Linear Fresnel system for directly generating steam
A linear Fresnel and Fresnel reflection technology, applied in the direction of steam generation, steam generation method, solar heating system, etc., can solve the problem that the temperature cannot be increased, the heat loss of the collector tube is large, and the control of the direct steaming DSG system of the collector tube is complicated, etc. problems, to ensure stable operation and reduce heat loss
Inactive Publication Date: 2013-02-13
HIMIN SOLAR
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Problems solved by technology
[0006] In order to solve the problems of the prior art, the embodiment of the present invention provides a linear Fresnel system for directly generating steam, which not only properly solves the adverse effects of water-steam two-phase flow on the heat collecting tube under different conditions, direct steam DSG The system control is complex and other problems, and it can effectively prevent the tube explosion caused by the circumferential temperature difference of the heat collecting tube; and solve the problem of large heat loss of the heat collecting tube in the overheating section and the problem that the temperature cannot be increased, and has the advantages of simple system configuration structure, high thermal efficiency, and reliability Medium and high temperature direct steaming system with strong performance and low cost
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[0025] This embodiment provides a linear Fresnel direct steam generation system, please refer to figure 1 , figure 2 and image 3 , the system includes: feed water pressure pump 1, PLC controller 2, Fresnel reflection concentrating device 3, secondary concentrator 4 in saturated water section, first control valve 6, flash tank 7, steam-water separator 8 and The secondary concentrator 10 in the overheating section. The feedwater pressure pump 1 is connected to the secondary concentrator 4 in the saturated water section, the water inlet of the feedwater pressure pump 1 is connected to a water inlet valve, and the feedwater pressure pump 1 pumps high-pressure water to the heat collection pipeline for the system. The secondary concentrator 4 of the water section, the flash tank 7 and the steam-water separator 8 are sequentially connected by pipelines, the Fresnel reflection concentrator 3 is arranged below the secondary concentrator 4 of the saturated water section, and the fir...
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The invention discloses a linear Fresnel system for directly generating steam. The linear Fresnel system comprises a water supply pressure pump (1), a PLC (Programmable Logic Controller) (2), a Fresnel reflecting and condensing device (3), a saturated water section secondary condenser (4), a first control valve (6), a flash tank (7), a steam-water separator (8) and an overheat section secondary condenser (10), wherein the water supply pressure pump (1) is in pipeline communication with the saturated water section secondary condenser (4); the saturated water section secondary condenser (4), the flash tank (7) and the steam-water separator (8) are sequentially in pipeline communication; the Fresnel reflecting and condensing device (3) is arranged below the saturated water section secondary condenser (4); and the steam-water separator (8) is respectively in pipeline communication with the water supply pressure pump (1) and the overheat section secondary condenser (10). According to the linear Fresnel system disclosed by the invention, original coated steel tubes on a high-temperature steam section and a low-temperature hot water section in the system are respectively replaced by coating vacuum tubes and coating steel tubes, so that the heat loss in a high-temperature area can be reduced and the influence on the heat absorption efficiency of the system is avoided.
Description
technical field [0001] The invention relates to the field of concentrating solar steam generating equipment, in particular to a linear Fresnel system for directly generating steam. Background technique [0002] In order to convert low-radiation-density solar energy into high-quality steam or electricity, and truly realize global energy substitution, scientific researchers are conducting continuous exploration and research. In addition to photovoltaic power generation and solar water heaters, they have also developed products that can be used for medium and high temperature power generation. Concentrating solar power (CSP) mainly includes four thermal power generation modes: trough, tower, butterfly and reflective Fresnel. Among them, Fresnel solar thermal utilization technology has become an important technical means to replace conventional energy in renewable energy technology due to its high effective utilization area and lower unit power generation cost. The conventional...
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Login to View More IPC IPC(8): F22B1/00F24J2/10F24J2/05F24J2/24F24J2/40F24J2/46F24S10/40F24S10/70F24S23/70
CPCY02E10/44
Inventor 肖圣燕熊勇刚刘培先赵彦堂
Owner HIMIN SOLAR