| 摘要 |
A rupture disk for a refrigeration unit that, upon bursting, does not interfere with the operation of a downstream, normally closed, mechanical relief valve. The disk is designed to rupture at predetermined pressure and is made of a compressed powder or an organic wax that dissolves in the refrigerant. The process side of the disk, i.e. the side facing the evaporator, is covered with a film that is impermeable to the particular halocarbon refrigerant in use. Upon rupture, fractures from a disk that is made of compressed powder readily pass through a downstream mechanical relief valve because the fragments are small and have a uniform geometry. Upon rupture, fractures from a disk that is made of organic wax readily pass through a downstream mechanical relief valve because they have all or partially dissolved in the halocarbon refrigerant.
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