US4465027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas vapor generator
Assignee: Sulzer AG
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Filing: 1983-03-16
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Granted: 1984-08-14
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Expires: 2003-03-16
Abstract
Abstract The exhaust gas vapor generator has a main working medium flow which passes via a feed pump and economizer into an evaporator. Working medium is bled off as a component flow between the economizer and evaporator in order to heat the degasser. The heat of the component flow may be supplied via a heat exchanger disposed within the degasser or by a heat exchange with the condensate line within a heat exchanger separate from the degasser. The part-flow is returned to the main flow between the feed pump and the economizer.
Inventors
- 👤 Hans-Rudolf Steinegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:10
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/10; F01K23/101; B; B01; B01D; B01D19/00; B01D19/0068; Y; Y02; Y02E; Y02E20/00; Y02E20/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
136 words
In an exhaust gas vapor generator, the combination comprising a degasser for receiving a working medium; a feed pump for pumping a flow of working medium from said degasser; an exhaust gas duct for conveying a heated gas therethrough; an economizer disposed in said exhaust gas duct and connected with said feed pump for receiving a flow of working medium therefrom for heat exchange with the heated gas in said duct; an evaporator disposed in said exhaust gas duct for receiving a flow of heated working medium from said economizer; means for bleeding off a part-flow of heated working medium from between said economizer and said evaporator; a contact heat exchange means for transferring heat from said part-flow to said degasser; and means for returning said part-flow to said flow between said feed pump and economiser.
Claim 2
Dependent Claim
136 words
In an exhaust gas vapor generator, the combination comprising a degasser for receiving a working medium; a feed pump for pumping a flow of working medium from said degasser; an exhaust gas duct for conveying a heated gas therethrough; an economizer disposed in said exhaust gas duct and connected with said feed pump for receiving a flow of working medium therefrom for heat exchange with the heated gas in said duct; an evaporator disposed in said exhaust gas duct for receiving a flow of heated working medium from said economizer; means for bleeding off a part-flow of heated working medium from between said economizer and said evaporator; a contact heat exchange means for transferring heat from said part-flow to said degasser; and means for returning said part-flow to said flow between said feed pump and economiser.
Claim 3
Dependent Claim
60 words
The combination as set forth in claim 1 which further comprises a water/vapor drum between said economizer and said evaporator to receive the flow of working medium passing therebetween and a circulating pump for circulating the working medium through said evaporator and said drum, said means for bleeding off the part-flow being connected between said circulating pump and said evaporator.
Claim 4
Dependent Claim
23 words
The combination as set forth in claim 1 wherein said contact heat exchange means includes a heat exchange coil disposed within said degasser.
Claim 5
Dependent Claim
28 words
The combination as set forth in claim 1 wherein said contact heat exchange means includes a heat exchanger disposed in series with said degasser relative to said part-flow.
Claim 6
Dependent Claim
43 words
The combination as set forth in claim 1 which further comprises a restrictor in said means for returning said part flow, said restrictor being responsive to the pressure in said degasser to throttle said part-flow in response to an increase in said pressure.
Claim 7
Dependent Claim
64 words
The combination as set forth in claim 1 which further comprises a bypass line connected between said means for bleeding off the part-flow and said economizer for delivering at least a portion of the part-flow to said economizer and a control valve in said bypass line to control the flow therethrough in dependence on the temperature of the working medium flowing from said economizer.
Claim 8
Dependent Claim
115 words
In an exhaust gas vapor generator, the combination comprising a degasser for receiving a working medium; a feed pump for pumping a flow of working medium from said degasser; an economizer connected with said feed pump for receiving a flow of working medium therefrom for heat exchange with a heated gas; an evaporator for receiving a flow of heated working medium from said economizer; means for bleeding off a part-flow of heated working medium from between said economizer and said evaporator; a contact heat exchange means for transferring heat from said part-flow to the working medium delivered to said degasser; and means for returning said part-flow to said flow between said feed pump and economizer.
Claim 9
Dependent Claim
115 words
In an exhaust gas vapor generator, the combination comprising a degasser for receiving a working medium; a feed pump for pumping a flow of working medium from said degasser; an economizer connected with said feed pump for receiving a flow of working medium therefrom for heat exchange with a heated gas; an evaporator for receiving a flow of heated working medium from said economizer; means for bleeding off a part-flow of heated working medium from between said economizer and said evaporator; a contact heat exchange means for transferring heat from said part-flow to the working medium delivered to said degasser; and means for returning said part-flow to said flow between said feed pump and economizer.
Claim 10
Dependent Claim
139 words
In an exhaust gas vapor generator, the combination comprising a condensate line; a degasser for receiving a flow of working medium from said line; an exhaust gas duct for conveying a heated gas therethrough; an economizer disposed in said exhaust gas duct and connected with said degasser for receiving a flow of working medium therefrom for heat exchange with the heated gas in said duct; an evaporator disposed in said exhaust gas duct for receiving a flow of heated working medium from said economizer. means for bleeding off a part-flow of heated working medium from between said economizer and said evaporator; a contact heat exchange means for transferring heat from said part flow to the working medium delivered to said degasser; and means for returning said part-flow to the flow of working medium between said degasser and said economizer.
Claim 11
Dependent Claim
139 words
In an exhaust gas vapor generator, the combination comprising a condensate line; a degasser for receiving a flow of working medium from said line; an exhaust gas duct for conveying a heated gas therethrough; an economizer disposed in said exhaust gas duct and connected with said degasser for receiving a flow of working medium therefrom for heat exchange with the heated gas in said duct; an evaporator disposed in said exhaust gas duct for receiving a flow of heated working medium from said economizer. means for bleeding off a part-flow of heated working medium from between said economizer and said evaporator; a contact heat exchange means for transferring heat from said part flow to the working medium delivered to said degasser; and means for returning said part-flow to the flow of working medium between said degasser and said economizer.
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) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |