US3698476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter flow-dual pressure vent section deaerating surface condenser
Assignee: Studebaker Worthington Inc
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Filing: 1970-12-31
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Granted: 1972-10-17
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Expires: 1990-12-31
Abstract
Abstract Various forms of surface condensers are disclosed each respectively with a dual pressure deaerating system for condensate using a true counter-flow tray stack section. The tray stack section is disposed within reheating chamber and below a vent condenser chamber through which non-condensible gases are withdrawn from the condenser. Both the reheating chamber and the vent condenser chamber are pressure-isolated by trap means from the associated condenser space. Thus, variations in condenser load are not reflected by pressure changes in the deaerating system and the efficiency of the deaerating system is maintained. Reheating steam introduced into the reheating chamber below the level of the tray stack, flows through the tray stack, counter to the direction of flow of condensate, and to the vent condenser chamber which is maintained at a relatively lower pressure by an ejector. The true counterflow of steam through the tray stack both reheats the condensate and accommodates the separation of non-condensible gases from the condensate. One or more of the tray stack trays is disclosed to be of a construction having serrations along both its upper and lower edges to establish a plurality of drop points for the condensate.
Inventors
- 👤 Leonard J Wyzalek
- 👤 Henry W Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:32
CPC Classifications
F; F28; F28B; F28B9/00; F28B9/10; F28B1/00; F28B1/02; Y; Y10; Y10S; Y10S165/00; Y10S165/184; Y10S165/192
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
291 words
Apparatus for condensing and deaerating a vapor containing non-condensable gases comprising: a. a shell forming the condensing chamber, b. said shell having an inlet for passing vapor to be condensed into saiD condensing chamber, heat exchange means disposed in the shell for condensing vapor in said condensing chamber to form a condensate having non-condensable gases entrained therein, a hot well for deaerated condensate having an outlet for withdrawing said deaerated condensate from said shell, and means connected to said shell for maintaining a negative pressure in said condensing chamber, c. means disposed in the shell intermediate the condensing chamber and the hot well for collecting said gas containing condensate, d. means on said collecting means forming fluid seal means, e. means in said shell for deaerating said gas containing condensate, f. said deaerating means including means operatively associated with said fluid seal means to form a vent chamber in continuous communication with the deaerating means and disposed to receive said gas containing condensate from said collecting means through said fluid trap means, g. means for maintaining said deaerating means and chamber means at a constant predetermined pressure independent of and less than the lowest environmental pressure in said condensing chamber when said apparatus is in operation, h. means on said collecting means operatively associated with said hot well to form a reheat space therein and for passing deaerated condensate to said hot well, i. said chamber means disposed relative the collecting means and having passage means for passing said gas containing condensate to said reheat space, j. and means in said reheat space to provide a flow of heating vapor counter to the flow of the gas containing condensate entering said reheat space from the passage means in said chamber means.
Claim 2
Dependent Claim
291 words
Apparatus for condensing and deaerating a vapor containing non-condensable gases comprising: a. a shell forming the condensing chamber, b. said shell having an inlet for passing vapor to be condensed into saiD condensing chamber, heat exchange means disposed in the shell for condensing vapor in said condensing chamber to form a condensate having non-condensable gases entrained therein, a hot well for deaerated condensate having an outlet for withdrawing said deaerated condensate from said shell, and means connected to said shell for maintaining a negative pressure in said condensing chamber, c. means disposed in the shell intermediate the condensing chamber and the hot well for collecting said gas containing condensate, d. means on said collecting means forming fluid seal means, e. means in said shell for deaerating said gas containing condensate, f. said deaerating means including means operatively associated with said fluid seal means to form a vent chamber in continuous communication with the deaerating means and disposed to receive said gas containing condensate from said collecting means through said fluid trap means, g. means for maintaining said deaerating means and chamber means at a constant predetermined pressure independent of and less than the lowest environmental pressure in said condensing chamber when said apparatus is in operation, h. means on said collecting means operatively associated with said hot well to form a reheat space therein and for passing deaerated condensate to said hot well, i. said chamber means disposed relative the collecting means and having passage means for passing said gas containing condensate to said reheat space, j. and means in said reheat space to provide a flow of heating vapor counter to the flow of the gas containing condensate entering said reheat space from the passage means in said chamber means.
Claim 3
Dependent Claim
73 words
In the apparatus for condensing and deaerating a vapor containing non-condensible gases as claimed in claim 1 wherein, a. the means for collecting said gas containing condensate includes, a transversely disposed member connected in said shell below the heat exchange means and above the hot well, b. and spaced depending portions on the transverse member disposed during operation to extend into the deaerated condensate in the hot well to form said reheat space.
Claim 4
Dependent Claim
272 words
said shell having an inlet for passing steam to be condensed into said condensing chamber, heat exchange means disposed in the shell for condensing steam in said condensing chamber to form a condensate having non-condensible gases entrained therein, a hot well for deaerated condensate having an outlet for withdrawing said deaerated condensate from said shell, and means connected to said shell for maintaining a negative pressure in said condesnsing chamber, c. means disposed in the shell intermediate the condensing chamber and the hot well for collecting said gas containing condensate, d. means on said collecting means forming fluid seal means, e. means in said shell for deaerating said gas containing condensate, f. said deaerating means including means operatively associated with said fluid seal means to form a vent chamber in continuous communication with the deaerating means and disposed to receive said gas containing condensate from said collecting means through siad fluid trap means, g. means for maintaining said deaerating means and chamber means at a constant predetermined pressure independent of and less than the lowest environmental pressure in said condensing chamber when said apparatus is in operation, h. means on said collecting means operativly associated with said hot well to form a reheat space therein and for passing deaerated condensate to said hot well, i. said chamber means disposed relative the collecitng means and having passage means for passing said gas containing condensate to said reheat space, j. and means in said reheat space to provide a flow of heating vapor counter to the flow of the gas containing condensate entering said reheat space from the passage means in said chamber means,
Claim 5
Dependent Claim
272 words
said shell having an inlet for passing steam to be condensed into said condensing chamber, heat exchange means disposed in the shell for condensing steam in said condensing chamber to form a condensate having non-condensible gases entrained therein, a hot well for deaerated condensate having an outlet for withdrawing said deaerated condensate from said shell, and means connected to said shell for maintaining a negative pressure in said condesnsing chamber, c. means disposed in the shell intermediate the condensing chamber and the hot well for collecting said gas containing condensate, d. means on said collecting means forming fluid seal means, e. means in said shell for deaerating said gas containing condensate, f. said deaerating means including means operatively associated with said fluid seal means to form a vent chamber in continuous communication with the deaerating means and disposed to receive said gas containing condensate from said collecting means through siad fluid trap means, g. means for maintaining said deaerating means and chamber means at a constant predetermined pressure independent of and less than the lowest environmental pressure in said condensing chamber when said apparatus is in operation, h. means on said collecting means operativly associated with said hot well to form a reheat space therein and for passing deaerated condensate to said hot well, i. said chamber means disposed relative the collecitng means and having passage means for passing said gas containing condensate to said reheat space, j. and means in said reheat space to provide a flow of heating vapor counter to the flow of the gas containing condensate entering said reheat space from the passage means in said chamber means,
Claim 6
Dependent Claim
57 words
In the apparatus for condensing and deaerating a vapor containing non-condensible gases as claimed in claim 2 wherein: a. the deaerating means includes, casing means having spaced sides walls disposed to extend into the spaced depending portions of the transverse member to form said fluid seal means and to define said vent chamber with the transverse member.
Claim 7
Dependent Claim
102 words
In the apparatus for condensing and deaerating a vapor containing non-condensible gases as claimed in claim 2 wherein: a. the passage means for the vent chamber is disposed in the transverse member, b. means in the reheat space including spaced trays to increase the counter flow contact between the gas containing condenstte and the heated vapor supplied in the reheat space, c. and the means for establahing a flow of heated vapor in the reheat space consists of pipe means having openings thereon connected to a clean source of said heated vapor and disposed in said reheat space below the spaced trays.
Claim 8
Dependent Claim
124 words
In the apparatus for condensing and deaerating a vapor containing non-condensible gas as claimed in claim 2 including, a. division means in said shell to divide said condensing chamber into a first condensing space having a first inlet for receiving vapor at a first pressure to be condensed and a second condensing space having a second inlet for vapor at a second pressure to be condensed, said means for maintaining a negative pressure in said condensing chamber connected to maintain the respective first condensing space and the second condensing psace at pressures adapted to cause said vapor to be condensed to flow into said first condensing space and said second condensing space respectively. c. and said deaerating means is disposed in said condensing spaces.
Claim 9
Dependent Claim
38 words
In the apparatus for condensing and deaerating a vapor containing noN-condensible gas as claimed in claim 5 further including, a means to pass gas containing condensate from said second condensing space to the chamber in said deaerating means.
Claim 10
Dependent Claim
24 words
In combination, a. steam turbine means having at least one discharge outlet for steam, and b. apparatus for condensing and deaerating said steam including,
Claim 11
Dependent Claim
24 words
In combination, a. steam turbine means having at least one discharge outlet for steam, and b. apparatus for condensing and deaerating said steam including,
Claim 12
Dependent Claim
131 words
The combination as claimed in claim 7 wherein the steam turbine has plural exhaust outlets for steam, and a. means in the shell to divide the condensing chamber into a first condensing space and a second condensing space for accommodating flow of exhaust steam from the outlet of chamber, steam turbine at two distinct pressure levels into said condensing chamber, b. the means for maintaining said condensing chamber at a negative pressure connected to maintain a lower negative pressure in said first condensing space than the negative pressure in said second condensing space, c. said means for deaerating gas containing condensate disposed in said first condensing space, d. and said dividing means bounding said first condensing chamber whereby condensate formed in said second condensing chamber passes directly into said hot well.
Claim 13
Dependent Claim
217 words
The combination as claimed in claim 7 wherein the steam turbine has plural exhaust outlets for steam, and a. means in the shell to divide the condensing chamber into a first condensing space and a second condensing space for accomodating flow of exhaust steam from the outlet of said steam turbine at two distinct pressure levels, into said condensing chamber, b. the means for maintaining said condensing chamber at a negative pressure connected to maintain a lower pressure in said first condensing space than the negative pressure in said second condensing space, c. said means for deaerating gas containing condensate disposed in said first condensing space, d. said division plate disposed transversely in said shell, e. an inperforate plate mounted in the shell intermediate the second condensing space and the hot well and normal to the line of the division plate, f. a fluid trap seal in communication at one end with the second condensing space to rEceive gas containing condensate therefrom and at the other end communicates with the lower negative pressure first condensing space whereby gas containing condensate from the second condensing space will flow through said fluid trap seal to the first condensing space, g. and passage means to pass fluid from the fluid trap seal to the vent chamber in said deaerating means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |