2 results about "Evaporation condensation" patented technology

The application discloses a kind of liquid metal mixed working medium's pulsating heat pipe calculation method, comprising: obtaining size parameter construction model, determine working medium kind and property parameter;Preset initial parameter, according to liquid metal filling position construction liquid bullet momentum equation calculates liquid bullet displacement;Based on initial parameter iterative solution equation group formed by vapor bullet energy equation, mass flow and pressure relationship and temperature and pressure function relationship, obtain vapor bullet pressure and temperature;According to vapor bullet temperature and liquid bullet displacement determine liquid film thickness, flow velocity and length, calculate evaporation condensation heat transfer and update liquid bullet length;According to working medium kind, respectively establish conventional working medium and liquid metal liquid bullet energy equation, solve temperature distribution and obtain convective heat transfer coefficient, calculate incoming and outgoing sensible heat quantity;According to evaporation condensation heat transfer and sensible heat quantity calculate latent heat, sensible heat and total heat transfer and output.The application can simulate flow heat transfer characteristics, reveal heat transfer mechanism, provide guidance for pulsating heat pipe design optimization.

The present application relates to the field of evaporation condensation, and discloses an energy-saving antifreezing and anti-fouling evaporation condensation device, which comprises a box body, a condensation coil, a water tank and a spraying pipe fixedly connected to the inside of the box body, and air inlet windows and air outlet windows are respectively arranged on the two sides and the top of the box body; a heat preservation assembly for slowing down heat loss is arranged in the inside of the box body, the heat preservation assembly comprises air inlet closing units and air outlet closing units arranged in the inside of the air inlet windows and the air outlet windows, and further comprises a water storage unit arranged in the inside of the box body and used for controlling the opening and closing of the air inlet closing units; the box body is closed after the spraying system stops working, the entry of external low-temperature air and the discharge of internal high-temperature steam are isolated, the temperature drop speed in the inside of the box body is reduced, freezing is not prone to occurring in the inside of the condenser in a short-term shutdown state under a low-temperature environment, the subsequent work of the condenser is not affected, and the stability of the condenser in operation under a low-temperature environment is ensured.