【Daily Question】【AC Version for Static Equipment...Question 167】June 16, 2019 Multiple-choice questions...Essay questions
Thread Content
bg4.png【Daily Question】【AC Version for Static Equipment...Question 167】June 16, 2019 Multiple-choice questions...Essay questions .....................................................Reward rules: 3 Wealth for participation, 5–10 Wealth for answers that are close to the correct ones. ........................................................................... In what situations should expansion welding be used for the connection between the tube sheet and the heat exchange tubes in a shell-and-tube heat exchanger? ......................................................................Answer: ① High requirements for sealing performance ； ②In situations subject to vibration or fatigue loads ； ③In cases of intergranular corrosion ； ④Applications where a composite tube sheet is used.
①High requirements for sealing performance； ②In situations subject to vibration or fatigue loads ； ③In cases of intergranular corrosion ； ④Applications using composite tube sheets
High requirements for sealing performance； In situations subject to vibration or fatigue loads ； In cases of intergranular corrosion ； Applications where a composite tube sheet is used.
In the following situations, the connection between the tube sheet and the heat exchange tubes should be made by expansion welding: 1. In applications where high sealing performance is required; 2. In applications subject to vibration or fatigue loads. 3. In cases of intergranular corrosion; 4. In cases where composite tube sheets are used
Answer: In the following situations, the connection between the tube sheet and the heat exchange tubes should be made by expansion welding: 1. In applications where high sealing performance is required； 2. Applications subject to vibration or fatigue loads. 3. Cases with intergranular corrosion ； 4. Cases where a composite tube sheet is used.
In the case of composite tube sheets, when there is crevice corrosion, or when vibration or cyclic stress is present
1. Applications requiring high sealing performance； 2. Applications requiring resistance to vibration, fatigue, and alternating loads ； 3. Cases where a composite tube sheet is used ； 4. In cases of intergranular corrosion.
①High requirements for sealing performance； ②In situations subject to vibration or fatigue loads ； ③In cases of intergranular corrosion ； ④Applications using composite tube sheets
1. Under vibration or cyclic loading； 2. When there is a tendency to crevice corrosion ； 3. When using a composite tube sheet.
①High requirements for sealing performance； ②In situations subject to vibration or fatigue loads ； ③In cases of intergranular corrosion ； ④Applications where a composite tube sheet is used.
This post was last edited by wwguo on 2019-6-16 08:34; high sealing performance requirements； In situations subject to vibration or fatigue loads ； In cases of intergranular corrosion ； Applications where a composite tube sheet is used.