Waste heat recovery system having thermal sleeve support for heat pipe
A system for recovering waste heat from a stream of heated gas is disclosed. The system includes a convection heat transfer chamber, a boiler tank, and a plurality of heat pipes thermally interconnecting the convection heat transfer chamber with the boiler tank. Each of the heat pipes includes an evaporator section which is disposed in heat transfer relation with a stream of heated gas flowing through the convection heat transfer chamber, and a condenser section disposed in heat transfer relation with a volume of water contained within the boiler tank. The boiler tank is provided with a header plate having an array of heat pipe openings through which the heat pipes project. A heat pipe support sleeve is received in each heat pipe opening in sealed engagement with the header plate, with the heat pipes projecting through the support sleeves and thermally interconnecting the convection heat transfer chamber with the boiler tank. An intermediate portion of each heat pipe is received in sealed engagement with its associated support sleeve. In a preferred embodiment, heat transfer through the support sleeve is minimized in an arrangement in which each heat pipe opening is reduced by a stepped bore with the support sleeve connected in threaded, sealed engagement with the stepped bore. Furthermore, in this arrangement, the support sleeve has swaged end portions which project beyond the header plate and engage the heat pipe on opposite sides at points which are remote with respect to the support sleeve/header plate interface. One of the swaged end portions is sealed against the heat pipe in a fluid-tight union within the boiler tank. The support sleeve is radially spaced with respect to the heat pipe and is also radially spaced with respect to the heat pipe opening whereby heat transfer through the walls of the heat pipe to the support sleeve and to the header plate is minimized by concentric annular air gaps.
- Assignee:
- Q-dot Corporation
- Patent Number(s):
- US 4485865
- OSTI ID:
- 6015983
- Resource Relation:
- Patent File Date: Filed date 4 Mar 1982; Other Information: PAT-APPL-354744
- Country of Publication:
- United States
- Language:
- English
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Waste heat recovery system having thermal sleeve support for heat pipe
Waste heat recovery system having thermal sleeve support for heat pipe
Related Subjects
HEAT RECOVERY EQUIPMENT
HEAT PIPES
SUPPORTS
BOILERS
CONVECTION
EVAPORATORS
GAS FLOW
HEAT EXCHANGERS
SLEEVES
WASTE HEAT
ENERGY
ENERGY TRANSFER
EQUIPMENT
FLUID FLOW
HEAT
HEAT TRANSFER
MASS TRANSFER
MECHANICAL STRUCTURES
WASTES
320304* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization