Floating head, heat exchanger

Adequate space must be left around all equipment so that it can be easily serviced and operated. For instance, a floating head heat exchanger must have enough clear space so that the tube bundle can be removed from the shell and taken elsewhere for repairs. One company had problems with a heat exchanger during startup. They tried to remove the tube bundle, but found that they had not allowed adequate space and had to knock an opening in a brick wall. They replaced the wall with a door so that they would not need to remove any more walls when they needed to service it again. 

Floating-head heat exchangers with j-in. OD x 1-in. square pitch and 16-ft bundles construction. 

Because there appears to be no cost data for chlorinators, we will approximate the cost by using a fixed-tube, shell-and-tube heat exchanger. From Table 2.9, the cost of a 1,000 floating-head heat exchanger in January 1990 was 14,000. As indicated in Table 2.4.1, each chlorinator requires 330 fr of surface area. 

Figure 4.3 Floating-head heat-exchanger seal designs. From Ref.16 with permission. 

The values of and B2 for floating-head heat exchangers from Table A.4 are 1.63 and 1.66, respectively. The pressure factor is obtained from Equation A.3. 

Figure 15.16 Heat Transfer Correction Factor for Shell-and-Tube, Floating-Head Heat Exchangers... 

---