发明名称 Polyamide liner - for a heat exchanger producing hot service water as corrosion and scale protection
摘要 <p>The heat exchanger has two co-axial cylindrical channels with individual counter directional spiral surfaces to produce completely counter-directional flows in the two supply lines. Pref. all parts of the inner chamber coming into contact with the service water are coated with a polyamide film.</p>
申请公布号 DE2121620(A1) 申请公布日期 1972.11.09
申请号 DE19712121620 申请日期 1971.05.03
申请人 发明人
分类号 F24D3/08 主分类号 F24D3/08
代理机构 代理人
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