US3596516A
Expired / Lapsed
US
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Method and apparatus for measuring steam properties
Assignee: Texaco Inc
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Filing: 1969-03-27
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Granted: 1971-08-03
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Expires: 1989-03-27
Abstract
Abstract A method of and apparatus for determining the properties of steam by measuring the temperature thereof, adiabatically expanding a sample of the steam, separating the liquid from the expanded sample of steam, and comparing the chloride ion concentration of the separated liquid to that of the feed water used to generate the steam.
Inventors
- 👤 Stewart Haynes Jr
- 👤 Fuad T Saadeh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:33
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/56; G01N25/58; G01N25/60; G01K; G01K17/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
An apparatus for use in determining the enthalpy of generated wet steam comprising, in combination, a. means for taking a sample of said generated wet steam, b. means for expanding approximately adiabatically said sample of said wet steam, c. means for separating a portion of the liquid entrained in the expanded wet steam at approximately atmospheric pressure and at the approximate corresponding saturation temperature of said liquid, and d. means for measuring the quality of said expanded wet steam at said means for separating a portion of said liquid including means for measuring a physical characteristic of the separated liquid and the feed water used to generate said wet steam the enthalpy of said expanded wet steam being substantially equal to the enthalpy of said generated wet steam.
Claim 2
Independent Claim
128 words
An apparatus for use in determining the enthalpy of generated wet steam comprising, in combination, a. means for taking a sample of said generated wet steam, b. means for expanding approximately adiabatically said sample of said wet steam, c. means for separating a portion of the liquid entrained in the expanded wet steam at approximately atmospheric pressure and at the approximate corresponding saturation temperature of said liquid, and d. means for measuring the quality of said expanded wet steam at said means for separating a portion of said liquid including means for measuring a physical characteristic of the separated liquid and the feed water used to generate said wet steam the enthalpy of said expanded wet steam being substantially equal to the enthalpy of said generated wet steam.
Claim 3
Dependent Claim
56 words
An apparatus as defined in claim 1, wherein said means for measuring the quality of said expanded wet steam comprises a means for measuring the chloride ion concentration of said liquid separated from said expanded wet steam and a means for measuring the chloride ion concentration of the feed water used to generate said wet steam.
Claim 4
Dependent Claim
54 words
An apparatus as defined in claim 1, wherein said means for measuring the quality of said expanded wet steam comprises a means for measuring the electrical conductivity of said liquid separated from said expanded wet steam, and a means for measuring the electrical conductivity of the feed water used to generate said wet steam.
Claim 5
Dependent Claim
51 words
An apparatus as defined in claim 1 which includes a means for measuring the pressure of said generated wet steam to provide a basis for determining the saturated liquid enthalpy and enthalpy of vaporization of said generated wet steam, from which the quality of said generated wet steam may be determined.
Claim 6
Dependent Claim
51 words
An apparatus as defined in claim 1 which includes a means for measuring the temperature of said generated wet steam to provide a basis for determining the saturated liquid enthalpy and enthalpy of vaporization of said generated wet steam, from which the quality of said generated wet steam may be determined.
Claim 7
Independent Claim
92 words
A method for use in determining the enthalpy of generated wet steam which comprises, a. expanding adiabatically a sample of said generated wet steam, b. separating the liquid entrained in said sample of expanded wet steam at approximately saturation conditions, and c. measuring the quality of said sample of expanded wet steam by measuring a physical characteristic of the separated liquid and the feed water used to generate said steam, the enthalpy of said expanded wet steam at the separating condition being approximately equal to the enthalpy of said generated wet steam.
Claim 8
Independent Claim
92 words
A method for use in determining the enthalpy of generated wet steam which comprises, a. expanding adiabatically a sample of said generated wet steam, b. separating the liquid entrained in said sample of expanded wet steam at approximately saturation conditions, and c. measuring the quality of said sample of expanded wet steam by measuring a physical characteristic of the separated liquid and the feed water used to generate said steam, the enthalpy of said expanded wet steam at the separating condition being approximately equal to the enthalpy of said generated wet steam.
Claim 9
Dependent Claim
48 words
A method as defined in claim 6, wherein said measuring the quality of said sample of expanded wet steam comprises measuring the electrical conductivity of said liquid separated from said expanded wet steam, and measuring the electrical conductivity of the feed water used to generate said wet steam.
Claim 10
Dependent Claim
64 words
A method as defined in claim 7, wherein said measuring the quality of said sample of expanded wet steam comprises measuring the chloride ion concentration in said liquid separated from said expanded wet steam, and measuring the chloride ion concentration in the feed water used to generate said wet steam, said chloride ion concentration being determined by titrating the chloride ions with silver nitrate.
Claim 11
Dependent Claim
51 words
The method of claim 6 which includes the additional step of measuring the pressure of the generated wet steam, to provide a basis for determining the saturated liquid enthalpy and the enthalpy of vaporization of said generated wet steam from which the quality of said generated wet steam may be determined.
Claim 12
Dependent Claim
51 words
The method of claim 6 which includes the additional step of measuring the temperature of the generated wet steam, to provide a basis for determining the saturated liquid enthalpy and the enthalpy of vaporization of said generated wet steam from which the quality of said generated wet steam may be determined.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |