Furnace tube seal is closely related to energy saving and equipments operation.
For example, the tubes across top of ethylene cracking furnace will displace in horizontal and vertical directions and it is difficult to seal. Seal with ceramic fiber blanket or module, the furnace top may be deformed or destroyed by hot airflow and it need to be repaired in a short time. It is difficult to avoid hot-air attacking metal anchor. At result, the module will separate from the furnace shell. It is to be stopped operating to maintain.

Features:
I) Multi-tubes seal:
a) Long life and low cost of maintenance
b) Energy saving
c) Convenient to install and maintain
d) Flexible tube seal
e) Instead of fiber inner seal up to 1, 300 Celsius
f) Typical applications: Inlet tubes of furnace
2) Single-tube seal:
a) Can withstand temperature up to 1, 300 Celsius
b) Long life and low cost of maintenance
c) Sealing closely and energy saving
d) Easy to install and maintain
e) Typical application: outlet tube
3) Compensator:
a) Layers complex flexible sealing structure can withstand temperature up
to 1, 200 C
b) Long life and low cost of maintenance
c) Energy saving convenience to install and maintain
4) High temperature fabric
a) Be used to raw material of high temperature sealing and insulating products
b) Resistance to chemical erosion
c) Low shrinkage and high tensile strength
d) Resistance to high temperature
5) Energy saving:
a) Take tube furnace as instance
b) Suppose: the diameter of tube 152.4mm, the airflow gap 3mm, the air
pressure of furnace is 49Pa