Pulsating heat pipe heat transfer type solar cascade heat accumulator

The invention discloses a pulsating heat pipe heat transfer type solar cascade heat accumulator. The pulsating heat pipe heat transfer type solar cascade heat accumulator comprises a solar vacuum heatcollecting pipe, a cascade phase change material energy storage core, a pulsating heat pipe, a vacuum heat collector cover, an energy storage core fixed base, a low-temperature area energy storage cavity, a medium-temperature area energy storage cavity, and a high-temperature area energy storage cavity. The position between the inner layer and the outer layer of the solar vacuum heat collecting pipe is vacuum, the surface of an inner glass tube is plated with a black chromium coating through an electroplating method, the inner layer of the solar vacuum heat collecting pipe is provided with the cascade phase change material energy storage core, the pulsating heat pipe penetrates through the phase change material energy storage core, the solar vacuum heat collecting pipe collects heat amount at daytime and stores t