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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(常压,温度310~77k

4

Moisture content

0.1%(质量比)

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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