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2024年6月15日发(作者：)

卧式设备之滑动端固定螺栓之锁固力

API Std 660 -2007 Shell-and-tube Heat Exchangers

7.3.2 Horizontal heat exchangers shall be provided with two or more saddles designed

to support the heat exchanger under all specified conditions. Design of the saddles shall be

as follows.

a) Saddles shall be attached to saddle-bearing plates.

b) The bearing surface of the saddles shall be at least one-third of the circumference of

the shell.

c) The saddle-bearing plates shall have the same nominal chemical composition as the

shell and shall be continuously welded directly to the heat exchanger shells.

d) The saddle-bearing plates shall be provided with vent holes 6 mm (1/4 in) in diameter,

located at the vertical centreline.

e) The saddle-bearing plates shall be at least 6 mm (1/4 in) thick and shall have all

corners rounded to a radius of at least 25 mm (1 in).

7.3.5 For horizontal heat exchangers, slotted holes shall be provided in the baseplate of

all but one of the saddles, to allow for longitudinal movement due to thermal expansion or

contraction. The width of the slot shall be equal to the anchor bolt diameter plus 8 mm (5/16

in). The length of the slot shall be equal to the anchor bolt diameter, plus the allowance for

longitudinal movement, plus 8 mm (5/16 in).

TEMA -9

th

Edition 2007 Code

G-7 GENERAL CONSTRUCTION FEATURES OF TEMA STANDARD HEAT EXCHANGERS

G-7.1 SUPPORTS

All heat exchangers are to be provided with supports.

*G-7.11 HORIZONTAL UNITS

The supports should be designed to accommodate the weight of the unit and contents,

including the flooded weight during hydrostatic test.

本文标签： 滑动设备卧式螺栓

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