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            191、Introduction of vacuum storage tank (middle) - doer equipment

            Classification:Industry PublishTime:2022-02-24 10:06:52

            Introduction of vacuum storage tank (middle) - doer equipment

            Insulation system:

            The equipment adopts vacuum powder insulation. The insulation material used is expanded perlite (pearlite). Its performance requirements are as follows:

            Serial number

            Indicator name

            index

            1

            Bulk density

            40~60kg/m3

            2

            granularity

            0.1mm~0.2mm不少于90%

            3

            thermal conductivity

            0.026W/m·K·s(常壓,溫度310~77k

            4

            Moisture content

            0.1%(質量比)

            5

            Unexpanded rate

            ≤1%

            6

            PH value

            6.57.5

            ▲ in order to effectively improve the thermal insulation performance, a light blocking agent with good chemical stability and no explosion in oxygen enriched environment is added to the pearlescent sand.

            ▲ in order to avoid the pearlescent sand from moisture (high moisture content), special tooling is made for the storage, transportation and filling of pearlescent sand.

            ▲ when filling pearlescent sand, strictly control its filling density and try to be solid (≥ 1.8 times the interlayer volume) to prevent settlement.

            ▲ the liquid pipeline from the inner tank is provided with a liquid seal (gas seal liquid) structure.

            ▲ the supporting material of the inner tank adopts epoxy glass cloth rod with small thermal conductivity, strong pressure bearing capacity, low air release rate and strong low-temperature impact resistance.


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