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US 2020/0025367 A1Published application
Boiler Feed Tank Energy Recapture System
AssigneeDaniel Steam, Inc.
InventorYong K. Yoon
Life of this patent
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Abstract
An apparatus and method for recovery of waste heat in a boiler system, wherein heat from the low pressure steam in the feed water tank, which otherwise would be lost through dissipation, is used for other applications. Particularly, the waste heat energy recovered in the form of low pressure steam can be used to heat make-up water for the boiler system.
Claims2
A method for recovery of waste heat in a boiler system comprising:
- heating liquid under pressure in a closed vessel to create a first steam;
- applying said first steam to a steam utilizing device;
- said steam utilizing device emitting a second steam and condensate after utilizing said first steam;
- collecting said condensate and said second steam as feed water into feed water tank;
- pumping said feed water back into said closed vessel;
- said feed water in said feed water tank evaporating as low pressure steam in said feed water tank while waiting to be pumped back into said closed vessel;
- heat from said low pressure steam is recaptured and applied to heat make-up water entering said feed water tank from a make-up water source;
- said heated make-up water source enters the feed water tank through an outlet of said first heat exchanger located in said steam portion of said feed water tank.
5 more elements
A method for recovery of waste heat in 1 further comprising:
- wherein said collected condensate and second steam returning to said feed water tank is passed through a second heat exchanger located adjacent to feed water in said feed water tank and heat from said condensate and said second steam is recaptured and applied to heat feed water in said feed water tank awaiting to be cycled back into said closed vessel.
Dependencies are inferred from the claim text.