US3901081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soot blower with gas temperature or heat flow detecting means
Assignee: Babcock and Wilcox Co
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Filing: 1974-04-04
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Granted: 1975-08-26
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Expires: 1994-04-04
Abstract
Abstract A retractable soot blower is used as a temperature detector or a heat flow detector. The lance tube of the blower acts as a temperature or a total heat sensing probe in addition to performing its normal boiler cleaning function, and when inserted in the combustion chamber of a steam generator, boiler, or the like, the temperature of the pressurized blowing medium, or the total heat flow into the blowing medium, is determinable as a function of the pneumatic resistance of the discharging orifice of the lance tube. The detector is adapted to provide the heat flux profile of the chamber during movements of the lance tube, and can be utilized in conjunction with various control apparatus to selectively meter unvaporized water to the blowing medium during cleaning operations in response to changes in heat flow into the blowing medium.
Inventors
- 👤 Eugene F Adiutori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:11
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/14; G01K1/146
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
106 words
Apparatus for detecting thermodynamic conditions in a combustion region comprising: a feed tube having one end adapted to be connected to a source of pressurized fluid; a lance tube connected to the opposite end of said feed tube, means supporting said lance tube for movement relative to an opposite end of said feed tube, said lance tube having an end portion selectively locatable in said combustion region; nozzle means located on said end portion of said lance tube for restricting the flow of said pressurized fluid; and detecting means responsive to a pressure condition at said nozzle means for detecting thermodynamic conditions in said combustion region.
Claim 2
Dependent Claim
106 words
Apparatus for detecting thermodynamic conditions in a combustion region comprising: a feed tube having one end adapted to be connected to a source of pressurized fluid; a lance tube connected to the opposite end of said feed tube, means supporting said lance tube for movement relative to an opposite end of said feed tube, said lance tube having an end portion selectively locatable in said combustion region; nozzle means located on said end portion of said lance tube for restricting the flow of said pressurized fluid; and detecting means responsive to a pressure condition at said nozzle means for detecting thermodynamic conditions in said combustion region.
Claim 3
Dependent Claim
24 words
The apparatus as recited in claim 1 wherein said detecting means includes sensor means located exteriorly of said combustion region for measuring thermodynamic conditions.
Claim 4
Dependent Claim
26 words
The apparatus as recited in claim 2 wherein said sensor means is a pressure gauge operatively connected to an oppsite end portion of said lance tube.
Claim 5
Dependent Claim
25 words
The apparatus as recited in claim 1 wherein said detecting means includes metering means for measuring the quantity of pressurized fluid supplied by said source.
Claim 6
Dependent Claim
29 words
The apparatus as recited in claim 1 wherein said detecting means includes transmitter means for providing a variable output signal in response to pressure changes at said nozzle means.
Claim 7
Dependent Claim
30 words
Apparatus for detecting thermodynamic conditions in a combustion region comprising: a feed tube having one end adapted to be connected to a source of pressurized fluid; a lance tube supported
Claim 8
Dependent Claim
30 words
Apparatus for detecting thermodynamic conditions in a combustion region comprising: a feed tube having one end adapted to be connected to a source of pressurized fluid; a lance tube supported
Claim 9
Dependent Claim
84 words
A thermodynamic probe selectively insertable in a combustion region comprising: an elongated tube having one end selectively located in said region and an opposite end in fluid communication with a source of pressurized fluid; orifice means locAted at said one end for restricting the flow of said fluid, means located at an opposite end of said tube and responsive to said orifice means for detecting a thermodynamic condition therein, and a feed tube telescopically located in said tube and connected to said pressurized source.
Claim 10
Dependent Claim
84 words
A thermodynamic probe selectively insertable in a combustion region comprising: an elongated tube having one end selectively located in said region and an opposite end in fluid communication with a source of pressurized fluid; orifice means locAted at said one end for restricting the flow of said fluid, means located at an opposite end of said tube and responsive to said orifice means for detecting a thermodynamic condition therein, and a feed tube telescopically located in said tube and connected to said pressurized source.
Claim 11
Dependent Claim
27 words
The probe as recited in claim 7 which includes a support structure for movably supporting said tube for longitudinal and rotational movement relative to said feed tube.
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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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |