Joy Industries: Indirect Heaters

An Indirect Heater liberates heat in a separate chamber, normally a firetube, and the heat is transferred to the process stream through a media such as water, glycol/water,steam, salt or flue gases.

The primary advantages of indirect heating are:

The heating media transfers heat evenly.

The coil inside wall temperature is lower, thus reducing the possibility of caking, scaling and plugging which is a common problem in direct heating.

TMA-Joy's Indirect heaters are offered in a wide variety of output ratings that are widely applicable to the petroleum industry, in power generation and industrial uses. Indirect Heaters operate reliably, efficiently and safely.

TMA-Joy offers four (4) types of Indirect Heaters.

WATER BATH HEATERS

STEAM BATH HEATERS

SALT BATH HEATERS

HTE (High Thermal Efficiency)

Water Bath Heaters

Water Bath heaters have a vessel filled with a transfer media of water or glycol/water mixture (see diagram). The combustion chamber (firetube) and the process coil are submerged in the media. The firetube transfers the heat released by the burner to the media which then transfers the heat to the process through the process coil. The maximum operating temperature of the Water Bath heater is 190°F. TMA-Joy's standard sizes for Water Bath Heaters are available.

Duty. Btu/hr Absorbed Heat	Vessel Size
100,000	18"OD X 5'0"
250,000	24"OD X 7'6"
500,000	30"OD X 10'0"
750,000	36" OD X 12'0"
1,000,000	42" OD X 15'0"
1,250,000	48" OD X 15'0"
1,500,000	48" OD X 17'6"
1,750,000	60" OD X 15'0"
2,000,000	60" OD X 17'6"
2,500,000	60" OD X 20'0"
3,000,000	60" OD X 22'6"
3,500,000	72" OD X 22'6"
4,000,000	72" OD X 25' 0
4,500,000	72" OD X 30' 0
5,000,000	84" OD X 22'6"
6,000,000	84" OD X 30'0"
7,000,000	96" OD X 30'0"
8,000,000	96" OD X 30'0"
10,000,000	96" OD X 30'0"