Cleaning system for inner wall of seamless steel pipe
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- CHINA 19TH METALLURGICAL CORP
- Publication Date
- 2012-10-10
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 Figure 2 Figure 3
Abstract
Description
Technical field
[0001] The invention relates to a seamless steel pipe inner wall cleaning system. Background technique
[0002] Ammonia is one of the commonly used refrigerants. It is often used in large-scale refrigeration equipment. After the ammonia vapor flowing out of the evaporator enters the compressor, as the compressor continues to reciprocate compression, the internal pressure gradually rises, which finally forces the ammonia vapor to undergo a liquefaction reaction. This process is accompanied by a large amount of heat release. In order to ensure that the temperature of the liquid ammonia is not too high, the liquid ammonia immediately enters the condenser for cooling. The seamless steel pipe that transports the liquid ammonia bears important transportation tasks, so the inner wall of the steel pipe The surface treatment is very important. For the cleaning of the inner wall of seamless steel pipes, the current market common practice is:
[0003] 1. Ordinary cleaning: [...