A steam drum and steam generation system applied to a photothermal power generation system

Abstract

The invention discloses a steam pocket applied to a photo-thermal power generation system. The steam pocket comprises a first shell. An n-shaped steam-water separation device is arranged in the first shell. A first steam-water separation chamber, a second steam-water separation chamber and a steam drying chamber are jointly formed by the n-shaped steam-water separation device, a bottom surrounding plate, side surrounding plates and the first shell. The first shell is provided with a saturated steam outlet, first steam-water mixture inlets and second steam-water mixture outlets, wherein the saturated steam outlet communicates with the steam drying chamber, and the first steam-water mixture inlets and the second steam-water mixture outlets communicate with the first steam-water separation chamber and the second steam-water separation chamber correspondingly. The invention further discloses a steam generation system applying the steam pocket. An evaporator of the system is of a U-shaped pipe and U-shaped shell structure. An inner structure of the steam pocket is simplified, cost is reduced, meanwhile, pure reverse flow heat exchange is achieved for the evaporator, and the occupied area is reduced.

Description

technical field [0001] The invention relates to the technical field of photothermal power generation, in particular to a steam drum and a steam generating system applied to a photothermal power generation system. Background technique [0002] Solar thermal power generation system is an emerging industry in the country and a new energy category that replaces traditional coal power. Solar thermal power generation is the use of concentrators (heliostats) to concentrate low-density sunlight into high-density solar energy and then pass through solar heat absorbers to convert solar energy into thermal energy and heat the circulating intermediate heat carrier to melt. Salt, and then the feed water is heated in the heat exchanger through the molten salt to generate high-temperature superheated steam to drive the turbine to rotate to generate electricity. [0003] In this process, in order to ensure the quality of the steam and avoid the excessive salt content of the steam (steam wi...

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Problems solved by technology

This structure has a large resistance in the process of steam-water separation, so it consumes a lot of energy during the working process, which increases the operating cost

[0007] Third, during the working process, the liquid droplets in the steam will beat the wall of the cylindrical cyclone separator. On the one hand, the noise will be very loud during the operation, causing noise pollution; on the other hand, it will affect the equipment The installation accuracy is required to be high, because once the eccentricity occurs during the installation process, there will be vibration, which will reduce the life of the equipment

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