Molten salt pump gasket should be how to choose

molten salt pump gasket how to choose?

in the molten salt pump system, due to the high temperature of molten salt pump medium, the characteristics of easy leakage, the choice of gasket is particularly important. Gaskets main purpose is to avoid pressure, corrosion, and between two objects pipeline leakage of heat bilges cold shrink naturally. According to the characters of its material and structure can be divided into non-metallic gaskets, molten salt pump features, we generally choose metal gasket.

about high temperature molten salt pump commonly used metal gasket, according to the material below its function is introduced as follows:

1, carbon steel, the maximum working temperature exceeds 538 ℃, not particularly when medium with oxidizing, if carbon steel was in stress, used for hot water conditions under the condition of equipment trouble rate is very high.

2, 316 stainless steel: 18 12 ( Chromium, nickel 18% and 12%) Of 304 stainless steel, the increased about 2% molybdenum, commending working temperature exceeds 760 ℃. Use the function is better than that of 304 stainless steel.

: (3, hartz alloy 26 - 30% molybdenum, nickel and 4-62% 6% iron) 。 The presented work temperature exceeds 1093 ℃. Excellent heat concentration hydrochloric acid corrosion function, also has excellent wet hydrogen chloride gas corrosion resistance, reducing salt solution of sulfuric acid, phosphoric acid and the function of corrosion.

the preservation planning of molten salt water pump system with material selection according to

the working temperature of molten salt pump system is in commonly 220 - 540 ℃, what's more, as much as six or seven baidu from energy saving and safety consideration, requirements for thermal insulation on the molten salt pump system planning, should choose heavy small, low thermal conductivity of insulation materials, there was a cold heat, easy construction, and the intensity is good, easy to local material, the production equipment.

molten salt pump planning according to:

( 1) Small coefficient of thermal conductivity;

( 3) The wet resistance is strong, bibulous rate is low, will not change damaged by water be affected with damp be affected with damp;

( 4) Surely what temperature, not burn or fire;

( 5) Strong and durable, is bound to compressive strength;

( 6) The material origin is wide, make construction convenient, low prices.

molten salt pump selection of insulating material:

( 1) : rock wool tube used in oil chemical industry, metallurgy and other industrial boiler or equipment for thermal insulation pipe, sensitive to implement, waterproof rock wool tube with moistureproof, hydrophobic and exhaust temperature and so on special function, is suitable for use in wet environments.

( 2) Glass wool has good formability, small volume density, low thermal conductivity characteristics of molten salt pump habits characteristic of glass wool is in view of the air conditioning heat preservation, the exhaust duct insulation, heat preservation boiler steam pipe insulation.

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