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【Daily Question】20160510 Test methods and pressures for tube ends of shell-and-tube heat exchangers (Top 50 participants + 2 rewards)

2016-05-10View Original

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This post was last edited by humanrzm on 2016-5-11 at 13:42. In order to increase the popularity of the heat exchange forum, a \"Question of the Day\" activity has been introduced there; this helps to foster an active atmosphere for technical exchanges while also providing members with certain financial rewards. 【Daily Question】True or False: According to standards, for shell-and-tube heat exchangers where the design pressure of the tube side is higher than that of the shell side, the testing method and pressure for the tube ends must be specified in the drawings. ( ) Answer: Correct; for more details, see GB/T151-2014, clause 8.13.6. Other information: AC version of heat exchange equipment – “One Question per Day” competition (prizes available for participation; valid on a long-term basis). http://bbs.hcbbs.com/thread-1320941-1-1.html “【Mechanical Section】Recruitment for moderators and technicians; applications and referrals are welcome【Valid on a long-term basis】. If you’re interested, come ahead! 】http://bbs.hcbbs.com/thread-1568748-1-1.html 【Mechanical Section】Collection of Essential Knowledge http://bbs.hcbbs.com/thread-1389197-1-1.html Haichuan’s “Thanksgiving Season” Sharing Event http://bbs.hcbbs.com/thread-1579172-1-1.html Selection of “Active Users and Weekly Stars” in the Mechanical Section http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1482753&page=1&extra=#pid14468655
Reply #22016-05-10
Correct,√~~~~~~~
Reply #32016-05-10
The standards stipulate that for shell-and-tube heat exchangers where the design pressure of the tube side is higher than that of the shell side, the testing method and pressure for the tube ends shall be specified in the drawings. (Correct) For details, refer to clause 8.13.6 of GB/T151-2014: When the test pressure on the tube side is higher than that on the shell side, the pressure testing of the tube ends shall be carried out in accordance with the provisions in the drawings, or by a method agreed upon by both the supplier and the buyer.
Reply #42016-05-10
Error, incomplete. [For heat exchangers where the design pressure of the tube side is higher than that of the shell side, the drawing should specify in detail the testing methods and pressures for the joints between the heat exchange tubes and the tube sheet.]

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