02-08 Basic Knowledge of Heat Exchangers—Fill-in-the-Blanks (Prizes for Participants)
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1. In the connection between heat exchange tubes and tube sheets, the applicable range of strength expansion joining is: design pressure ≤ MPa； Design temperature≤ ℃ ； There are no drastic movements during operation, no excessive changes, and nothing noticeable. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus, or equal to, the sum of those two values. This post was last edited by Lan Meng on 2009-2-9 08:17.]
How come all the answers are already filled in? Hehe, how can we participate?
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 Mpa； Design temperature ≤300 ℃ ； There is no severe vibration during operation, no excessive temperature changes, and no significant stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 Mpa； Design temperature ≤300 ℃ ； There is no severe vibration during operation, no excessive temperature changes, and no significant stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be equal to the nominal thickness of the tube sheet minus 3 mm, or the smaller of that value and 50 mm. This post was last edited by Lan Meng on 2009-2-9 08:15.]
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion bonding is: design pressure ≤ 4.0 MPa； Design temperature ≤ 300 ℃ ； There are no drastic changes, no excessive variations, and nothing obvious during operation. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 Mpa； Design temperature ≤300 ℃ ； There is no severe vibration during operation, no excessive temperature changes, and no significant stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 MPa； Design temperature ≤ 300 ℃ ； There are no severe disturbances during operation, no significant changes, and no obvious stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values. This post was last edited by xssn2005 on 2009-2-7 20:22.]
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 MPa； Design temperature ≤ 300 ℃ ； There are no severe disturbances during operation, no significant changes, and no obvious stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
1. ≤ 4.0 Mpa, ≤ 300 ℃: stress corrosion. 2. The minimum value for 3 mm is the same
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 MPa； Design temperature ≤ 300 ℃ ； There are no severe disturbances during operation, no significant changes, and no obvious stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
Answer: 1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 MPa ； Design temperature ≤ 300 ℃ ； There are no drastic changes, no excessive variations, and nothing obvious during operation. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4 MPa； Design temperature ≤ 300 ℃ ； There are no drastic changes, no excessive variations, and nothing obvious during operation. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or the minimum value of these two values
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 Mpa ； Design temperature ≤300 ℃ ； There is no severe vibration during operation, no excessive temperature changes, and no significant stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 Mpa； Design temperature ≤300 ℃ ； There is no severe vibration during operation, no excessive temperature changes, and no significant stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
Answer: 1, design pressure ≤ 4.0 MPa； Design temperature ≤ 300 ℃ ； 2. Nominal thickness minus 3mm
1,4.0 MPa； 300 ℃ ； 2. Nominal thickness minus 3mm: lol
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion bonding is: design pressure ≤ 4.0 MPa ； Design temperature ≤ 300 ℃ ； There are no drastic changes, no excessive variations, and nothing obvious during operation. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 Mpa； Design temperature ≤300 ℃ ； There is no severe vibration during operation, no excessive temperature changes, and no significant stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.
1. 4.0 Mpa, 300 ℃, vibration, temperature, stress corrosion 2. 3 mm, same minimum value
1,4.0 MPa； 300 ℃ ； 2. Nominal thickness minus 3mm
1. In the connection between heat exchange tubes and tube sheets, the applicable range for strength expansion joining is: design pressure ≤ 4.0 Mpa； Design temperature ≤300 ℃ ； There is no severe vibration during operation, no excessive temperature changes, and no significant stress corrosion. 2. In the connection between the heat exchange tubes and the tube sheet, the minimum expansion length for tube expansion should be taken as the nominal thickness of the tube sheet minus 3 mm, or equal to the smaller of these two values.