Invention Grant
US4425944A Repair plug for heat exchanger tubes, especially for steam generators of
pressurized-weather nuclear power plants
失效
热交换器管的修理插头，特别是加压天然气核电站的蒸汽发生器
- Patent Title: Repair plug for heat exchanger tubes, especially for steam generators of pressurized-weather nuclear power plants
- Patent Title (中): 热交换器管的修理插头，特别是加压天然气核电站的蒸汽发生器
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Application No.: US320869Application Date: 1981-11-13
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Publication No.: US4425944APublication Date: 1984-01-17
- Inventor: Frederik E. Heuckelbach , Robert Weber , Jakob Weber
- Applicant: Frederik E. Heuckelbach , Robert Weber , Jakob Weber
- Applicant Address: DEX Mulheim
- Assignee: Kraftwerk Union Aktiengesellschaft
- Current Assignee: Kraftwerk Union Aktiengesellschaft
- Current Assignee Address: DEX Mulheim
- Priority: DEX3043343 19801117; DEX3135382 19810907
- Main IPC: F28F11/02
- IPC: F28F11/02 ; F16L55/10 ; F16L55/12
Abstract:
Repair plug for sealing heat exchanger tubes, including a closure plug part being tightly connectable to a heat exchanger tube and having an end for insertion into the heat exchanger tube, and a polisher plug part disposed on the insertion end of the closure plug part axially in front of the insertion end in insertion direction thereof forming a single structural unit with the closure plug part, the polisher plug part remaining in the sealed heat exchanger tube after completing the tight connection.
Public/Granted literature
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