Hot water preheater system

Patent · Tue Aug 12 04:00:00 EDT 1986

OSTI ID:5276647

Miller, K F

This patent describes a system for supplying hot water to a point of use from a primary heated water storage tank having an inlet and an outlet, an improvement including in combination: a water supply line; a secondary water heating source having an inlet and an outlet; a main valve means having first and second operating positions, and first, second, third, and fourth ports; second and third valve means each having first and second operating positions and each having first, second and third ports; means for connecting the water supply line to the first port of the main valve means; first pipe means connecting the second port of the main valve means to the first port of the second valve means; second pipe means connecting the second port of the second valve means to the inlet of the secondary water heating source; drain means; pipe means connecting the third port of the second valve means and the third port of the third valve means, respectively, to the drain means; fourth pipe means connecting the outlet of the secondary water heating source to the second port of the third valve means; fifth pipe means connecting the first port of the third valve means to the third port of the first valve means; and means coupling the fourth port of the first valve means to the inlet of the primary heated water storage tank.

• Assignee: NOV; EDB-86-167749; NOV-85-020252
• Patent Number(s): US 4604991
• OSTI ID: 5276647
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
APPLIANCES
CONTROL EQUIPMENT
DESIGN
DRAINAGE
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
HEATERS
HOT WATER
HYDROGEN COMPOUNDS
OPERATION
OXYGEN COMPOUNDS
PIPES
POSITIONING
STORAGE FACILITIES
VALVES
WATER
WATER HEATERS
WATER SUPPLY