2results about How to "Reduce radial temperature gradient" patented technology

This invention relates to the field of organic functional crystal growth technology, specifically a method for growing organic crystals based on the control of the included angle of the inner wall of a crucible. The method employs a quartz crucible with an axisymmetric conical inner cavity, and controls the included angle β of the inner wall of the crucible to be 10°–30°, preferably 15°–20°. After loading the organic crystal raw material into the crucible, a vacuum of 1×10⁻⁶ is applied. ‑2 After being sealed by welding, and after passing the pre-growth inspection and sealing, the melt is placed in a Bridgman crystal growth furnace for heating and melting and held at that temperature for 24 hours. The axial temperature gradient is controlled, and the melt is directionally solidified and grown from bottom to top at a rate of 1-1.5 mm / h. The organic single crystal is then slowly cooled to obtain the organic single crystal. This invention optimizes the melt flow field and solid-liquid interface by adjusting the crucible angle, reduces the radial temperature gradient, reduces defects such as crystal cracks and dislocations, and improves crystal integrity and optical uniformity. The process is simple, has good repeatability, and is suitable for large-size, high-quality growth of organic scintillation crystals and organic optoelectronic crystals.

The invention discloses an energy storage device suitable for a shallow underground space, and relates to the technical field of underground energy storage, and the energy storage device comprises an energy storage tank used for storing an energy storage medium; the energy storage assembly comprises two mounting bases which are correspondingly arranged up and down, a tube bundle is arranged between the two mounting bases, the side face of the tube bundle is sleeved with a protection ring, and a backflow tube is arranged in the middle of the position between the two mounting bases in a penetrating mode; the driving seat is arranged on the side surface of the protection ring; the buffering assembly is used for achieving buffering protection of the tube bundle; the magnetic enhancement assembly comprises a driving mechanism and a ring seat, an electromagnetic ring is embedded in the inner wall of the ring seat, a rotating ring is rotationally connected to the inner wall of the ring seat, blade plates are obliquely arranged on the inner wall of the rotating ring in an annular array mode, and a cleaning part is arranged on the outer wall of the rotating ring. And the energy storage and utilization efficiency is improved.