3 results about "Moving bed heat exchanger" patented technology

The invention belongs to the technical field of solar photo-thermal power generation, and discloses a tower type solar power generation system based on lunar soil particle moving bed heat exchange, which utilizes local materials of lunar soil to prepare solid heat storage particles as a heat transfer and heat storage medium, greatly reduces the mass and volume of the system and the cost and risk of transporting materials from the earth, and improves the energy efficiency. The efficient particle moving bed heat exchanger combining the particle receiver and the heat collector utilizes direct efficient contact heat exchange between solid particles and between the particles and a heat exchange working medium, has the characteristics of high heat exchange efficiency, small heat loss and compact structure, and is particularly suitable for space vacuum and microgravity environments; it is ensured that heat is reliably and stably transmitted to the Brayton cycle power generation system from concentrated solar energy, and power is generated through the Brayton cycle power generation system.

This invention discloses a heterogeneous particle partitioned relay asymmetric moving bed cold storage system and its operation method. The system includes a first moving bed heat exchanger, a cold particle storage tank, a second moving bed heat exchanger, a first / second hot particle storage tank, and a conveying device. The first moving bed heat exchanger, the cold particle storage tank, and the second moving bed heat exchanger are connected in series vertically, forming a gravity-driven trajectory path for the particles from top to bottom. The conveying device connects the second hot particle storage tank and the first hot particle storage tank, forming a mechanical return path for the particles from bottom to top. During operation, the particles in the cryogenic region rely solely on gravity to complete heat exchange, achieving dual decoupling of particle state transition and mechanical transport in both physical space and operating time. This architecture, while removing the mechanical drive components in the cryogenic region, utilizes the cold particle storage tank as an intermediate hub to achieve asynchronous scheduling and efficient management of charging and discharging cold conditions, significantly reducing cryogenic heat leakage losses and improving the system's engineering reliability and grid dispatch adaptability.

The present invention discloses a two-stage dense-phase moving bed heat exchanger, including a hot flue gas outlet disposed at the top of the moving bed heat exchanger. The interior of the moving bed heat exchanger is divided into an upper section and a lower section. The upper section is a dense-phase buried pipe layer, within which a vibrating buried pipe layer is disposed. The bottom of the lower section is provided with an air distribution device. The moving bed heat exchanger is provided with air cooling ports on both sides of the upper section. The bottom of the moving bed heat exchanger is a funnel-shaped structure, and a discharge device is provided at the outlet. The device of the present invention has a reasonable layout and uniform air distribution, which is conducive to slag discharge, loosening the material layer, and uniforming the material layer. It can be effectively used to recover the high-temperature sensible heat of semi-molten particles.