US3807364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing header
Assignee: Westinghouse Electric Corp
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Filing: 1972-07-20
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Granted: 1974-04-30
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Expires: 1992-07-20
Abstract
Abstract An elongated tubular header disposed on the discharge end of a superheater for a waste heat boiler, the header having a plurality of inlet ports for superheated steam disposed lengthwise along one side thereof, inlet ports for saturated steam disposed at the ends of the header and a steam outlet port disposed in a central portion of the header, whereby a regulated quantity of saturated steam enters the ends of the header and mixes with the superheated steam to control the temperature of the superheated steam leaving the header via the outlet port.
Inventors
- 👤 D Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:32
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/18; F22B; F22B1/00; F22B1/02; F22B1/18; F22B1/1807; F22B1/1815
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
162 words
A waste heat boiler comprising a duct for channelling the waste heat, means disposed in said duct for producing steam, means for separating moisture from said steam to produce essentially dry, saturated steam and means disposed in said duct for superheating said dry, saturated steam to produce superheated steam and means for mixing said dry, saturated steam with said superheated steam to control the temperature of said superheated steam, irrespective of the flow through said superheating means, said mixing means being a part of said superheating means and comprising an elongated tubular shell having a plurality of inlet ports for superheated steam disposed lengthwise along the shell, an inlet port for saturated steam disposed at each end of the shell, and an outlet port disposed adjacent a central portion of said shell, and the ends of said shell forming transition means which increase in cross-sectional area gradually from the crosssection of the saturated steam inlet port to the cross-section of the shell.
Claim 2
Dependent Claim
162 words
A waste heat boiler comprising a duct for channelling the waste heat, means disposed in said duct for producing steam, means for separating moisture from said steam to produce essentially dry, saturated steam and means disposed in said duct for superheating said dry, saturated steam to produce superheated steam and means for mixing said dry, saturated steam with said superheated steam to control the temperature of said superheated steam, irrespective of the flow through said superheating means, said mixing means being a part of said superheating means and comprising an elongated tubular shell having a plurality of inlet ports for superheated steam disposed lengthwise along the shell, an inlet port for saturated steam disposed at each end of the shell, and an outlet port disposed adjacent a central portion of said shell, and the ends of said shell forming transition means which increase in cross-sectional area gradually from the crosssection of the saturated steam inlet port to the cross-section of the shell.
Claim 3
Dependent Claim
26 words
A waste heat boiler as set forth in claim 1, wherein the inlet ports for superheated steam are disposed at regular intervals lengthwise along the shell.
Claim 4
Dependent Claim
30 words
A waste heat boiler as set forth in claim 1, wherein the outlet port is generally the diameter as the shell and is disposed at the mid-point of the shell.
Claim 5
Dependent Claim
24 words
A waste heat boiler as set forth in claim 1, wherein the outlet port is diametrically opposite at least one superheated steam inlet port.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |