Eclipse Exothermics Tubular 545, Installation Manual

8

Exothermics Tubular Heat Recuperators, Installation Guide 545, 3/20/2015

Figure 3.4. 

Flange Details and Gaskets

For maximum performance and safety, all flange
connections should be gasketed. A gasket material
appropriate to the operating conditions should be used.
Recommended material is a woven, high temperature
fiber tape. Connections should be made with 3/8 inch (9.5
mm) diameter stainless steel nuts and bolts. All fasteners
should be coated with a high temperature, anti-seize
compound before assembly.

Operation and Startup

Startup should be conducted by qualified personnel in a
systematic manner. Prior to startup, all connections
should be tested for tightness. Flanged connections
should be inspected for leaks. Typically the refractories
used in construction do not require a bake-out or curing
schedule.

Startup personnel should monitor the system closely for
correct operation of temperature controls, high limit
cutoffs, and differential pressure switches prior to release
to operating personnel. It is strongly recommended that
operating personnel be familiarized with the operating
limits of the heat recuperator before use.

Temperature Control

A ramping type temperature control is required. The

maximum rate of heat-up or cool down is 25°F (14°C) per
minute. Exceeding this rate may cause damage to the
heat recuperator due to excessive thermal stress. An
approved high temperature limit control should be
installed in the hot gas inlet airstream. Control and high
limit thermocouples should be placed in the center of the
hot gas inlet duct. All thermocouples should be calibrated
and checked for proper operation before startup.
Excessive thermal cycling should be avoided.

Pressure Control

The maximum rated differential pressure is         

w.c.

(mbar). Differential pressure limit switches and controls
are strongly recommended. System fans should be
sequenced appropriately to avoid excessive operating
pressure at startup.

■

 The  recommended  Maximum  Continuous

Operating Temperature for the recuperator is:

■

 The 

recommended 

Maximum 

Differential 

Pressure

for the recuperator is:

■

 25°F (14°C) per minute maximum rate of

temperature change.

■

 If the recommended operating limits for the

recuperator are exceeded, damage may result.

Maintenance

The tubular recuperator is a high quality, static device with
no moving parts. There are no serviceable user parts
inside. Periodic visual inspection of the tubes is
recommended. The use of a temperature chart recorder
and a high temperature limit control is strongly
recommended.

Thank you for your selection of an Exothermics, Inc. heat
exchanger. If you require additional information or
assistance, please contact your Exothermics
representative or the home office at (419) 729-9726.

CAUTION

CAUTION