发明名称 |
Heat exchanger |
摘要 |
The invention relates to a heat exchanger with plastic pipes or hoses having at least two layers. The thickness of the layers and/or the selection of the raw material depends upon the respective operating conditions. Pipe strings with at least two layers reduce the risk of cracks through production-associated grooves, which cannot be detected using test methods that are still economical. Higher-grade materials can also be avoided in this way.
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申请公布号 |
DE3721395(A1) |
申请公布日期 |
1989.01.19 |
申请号 |
DE19873721395 |
申请日期 |
1987.06.29 |
申请人 |
GEA LUFTKUEHLERGESELLSCHAFT HAPPEL GMBH & CO |
发明人 |
RUFF,KLEMENS;BRODA,SIEGFRIED,DIPL.-ING. |
分类号 |
F28F21/06;(IPC1-7):F28D7/10 |
主分类号 |
F28F21/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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