High temperature oil pump with selfheat radiating system, do not require water for cooling pump body, simple structure, smaller size, cost, performance is very reliable.
高温油泵采用自热散热系统，不需要用水来冷却泵体，结构简化，体积变小，运行成本降低，性能却非常可靠。
2
The invention relates to a heat-insulating wall body material for a building, and discloses a riverway sludge selfheat-insulating sintered porous brick and preparation thereof.
本发明涉及一种建筑用保温墙体材料，公开了一种河道淤泥自保温烧结多孔砖及其制备。
3
The utility model is a superconducting device of selfheat source of oil well avoiding wax and reducing viscosity, and belongs to novel field of heat transfer technology of vacuum tube.