Heater Basics Issue 0219 (Prizes for Correct Answers)
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Multiple-choice question: 1. When the design temperature of the heat exchanger is ≥300°C, the pipe flanges should use ( ). A) Butt weld flange B) Welding neck flat flange C) Plate type flat weld flange 1132. For the nozzles of steel shell and tube heat exchangers, when the design temperature is 300°C or higher, （ ） flanges must be used. A) Loose style B) Integral style C) Arbitrary style Correct answers: 1, A 2, B
1. When the design temperature of the heat exchanger is ≥ 300°C, the pipe connection flanges should be of type (A). A) Butt weld flange B) Welded flange with neck C) Plate welded flange 1132. For the nozzles of steel shell and tube heat exchangers, when the design temperature is 300°C or higher, (B) flanges must be used. A) Loose style B) Integral C) Arbitrary style
But it seems like the explanation for the second question wasn’t very clear
1. A Butt Weld Flange 2. B Integral Flange
1. When the design temperature of the heat exchanger is ≥ 300°C, the pipe connection flanges should be of type (A). A) Butt weld flange B) Welding neck flat flange C) Plate type flat flange 1132. For the nozzles of steel shell and tube heat exchangers, when the design temperature is 300°C or higher, (B) flanges must be used. A) Loose style B) Integral C) Arbitrary style
Reply to Lanmeng’s post 1A 2B
1. When the design temperature of the heat exchanger is ≥ 300°C, the pipe connection flanges should be (A) butt-welded flanges. A) Butt weld flange B) Welded flange with neck C) Plate welded flange 1132. For the nozzles of steel shell and tube heat exchangers, when the design temperature is 300°C or higher, (B) integral flanges must be used. A) Loose style B) Integral C) Arbitrary style
1A 2B:lol :lol
My choice: 1.A 2.B
1. A Butt Weld Flange 2. B Integral Flange
1. A Butt Weld Flange 2. B Integral Flange
1. A Butt Weld Flange 2. B Integral Flange
1. A Butt Weld Flange 2. B Integral Flange
1.A 【For heat exchanger connection flanges where the design temperature is >300°C, butt-welded flanges must be used; this is clearly specified in line 7 from the bottom on page 19 of GB151. 】 2.B 【For steel shell-and-tube heat exchangers, integral flanges must be used when the design temperature is 300°C or higher. 】
1. When the design temperature of the heat exchanger is ≥ 300°C, the pipe connection flanges should be of type (A). A) Butt weld flange B) Welded flange with neck C) Plate welded flange 1132. For the nozzles of steel shell and tube heat exchangers, when the design temperature is 300°C or higher, (B) flanges must be used. A) Loose style B) Integral C) Arbitrary style
1. When the design temperature of the heat exchanger is ≥ 300°C, the pipe connection flanges should be of type (A). A) Butt-welded flanges. 2. For steel shell and tube heat exchangers, when the design temperature is 300°C or higher, (B) type flanges must be used. B) Overall