Pump industry suppliers - Thermal insulation layer of high temperature molten salt pump alternated selection

high temperature molten salt pump temperature is in commonly 220 - in the work 540 ℃, there are even reach six or seven baidu search, from considering the energy conservation and emissions reduction and safety coefficient, must conduct heat insulation in high temperature molten salt pump design, should choose relation between small, low coefficient of heat transfer of thermal insulation materials, resistant to cold resistance to high temperature, convenience of construction, and the compressive strength is good, is advantageous for the local sampling, making installation on the spot.

insulation alternated selection:

reference calculation method in chemical process design guidelines. Can according to your climatic factors, such as temperature, raw material of heat transfer coefficient, the basic theory of estimation on the insulation layer thick to carry out the work are:

( 1) Immediately to the heat transfer coefficient of standard deviation of raw materials take on one or several effect index, calculate the raw materials under different applied load of heat transfer coefficient estimate value by the designer, measuring the insulating layer must use its thickness.

( 2) Choose the heating method is calculated after the basic theory of the thermal insulation layer thick, according to the heat insulation material and structure, installation position, natural environment, is not the same as the main parameters such as temperature, a comprehensive index of effect is.

high temperature molten salt pump heat preservation and heat insulation material selection:

( 1) Rock wool tube: used for petroleum chemical industry equipment, metallurgical industries such as industrial production of heating furnace is machine equipment or piping heat insulation, can rapid execution, rock wool tube with the waterproof moisture-proof, hydrophobic and unique properties such as temperature, suitable application in wet environment.

( 2) Glass fiber cotton: have excellent formability, smaller volume relative density, heat transfer rate is relatively inferior, into the properties of glass fiber cotton is for heat insulation heat preservation, central air-conditioning exhaust pipe heat insulation heat preservation, adiabatic heating furnace and steam pipe heat insulation.

how to deal with the high temperature molten salt water pump cavitation condition: high temperature molten salt pump cavitation condition refers to the molten salt before reaching the impeller under the transportation temperature of saturated vapor pressure is equal to or less than the pump inlet pressure and part of gasification, pressurized fluids are impeller with bubble, due to the working pressure, the bubble recedes, material quickly fill the bubble interior space, lead to the impact of the impeller and pump cause noise and vibration, more serious, the total capacity of the pump, pulling force and high efficiency is decreased obviously.

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