USRE33346E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for testing fluids for fouling
Assignee: Drew Chemical Corp
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Filing: 1989-02-23
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Granted: 1990-09-25
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Expires: 2009-02-23
Abstract
Abstract There is disclosed a novel mobile apparatus and process therefor including a heat transfer test assembly and related conduit and valve assemblies for connection in fluid flow communication to a heat transfer apparatus for in-situ testing of the fluid passing therethrough and including monitoring and recording apparatus. The heat transfer test assembly includes a heating member for controlled heat input and thermocouples to measure the surface temperature of heating member to permit fouling determinations at varying flow rates with simultaneous monitoring and recording thereof together with data, such as corrosion, pH, conductivity, and the like.
Inventors
- 👤 James G. Knudsen
- 👤 Nicholas J. Brindak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:47
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/18; G01N33/00; G01N33/18
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
171 words
An apparatus for testing a fluid to monitor and record fouling data together with other parameters which comprises: a piping assembly including .Iadd.a .Iaddend.fluid inlet and outlet .[.means.]. and a heat transfer test assembly, said heat transfer test assembly including a heating member .[.including.]. .Iadd.with .Iaddend.a heating element disposed within a conduit means having a passageway for said fluid; means for measuring temperature of said fluid entering said heat transfer test assembly; means for supplying electrical energy of a preselect quantity to said heating element; means for measuring a wall temperature of said heating element; flow means for measuring velocity of said fluid through said conduit means; means for measuring .[.a parameter selected from the group consisting of.]. .Iadd.parameters of said fluid comprising .Iaddend.corrosion, pH and conductivity; and means for simultaneously recording said preselect quantity of electrical energy to said heating element, said measured temperature of said fluid, said measured wall temperature of said heating member, said measured velocity of said fluid through said piping assembly and said measured .[.parameter.]. .Iadd.parameters.Iaddend..
Claim 2
Independent Claim
171 words
An apparatus for testing a fluid to monitor and record fouling data together with other parameters which comprises: a piping assembly including .Iadd.a .Iaddend.fluid inlet and outlet .[.means.]. and a heat transfer test assembly, said heat transfer test assembly including a heating member .[.including.]. .Iadd.with .Iaddend.a heating element disposed within a conduit means having a passageway for said fluid; means for measuring temperature of said fluid entering said heat transfer test assembly; means for supplying electrical energy of a preselect quantity to said heating element; means for measuring a wall temperature of said heating element; flow means for measuring velocity of said fluid through said conduit means; means for measuring .[.a parameter selected from the group consisting of.]. .Iadd.parameters of said fluid comprising .Iaddend.corrosion, pH and conductivity; and means for simultaneously recording said preselect quantity of electrical energy to said heating element, said measured temperature of said fluid, said measured wall temperature of said heating member, said measured velocity of said fluid through said piping assembly and said measured .[.parameter.]. .Iadd.parameters.Iaddend..
Claim 3
Dependent Claim
19 words
The apparatus as defined in claim 1 and further comprising a flow control valve .Iadd.connected in said piping assembly.Iaddend..
Claim 4
Dependent Claim
22 words
The apparatus as defined in claim 2 wherein said flow control valve is of a constant flow type including a pressure equalizer.
Claim 5
Dependent Claim
15 words
The apparatus as defined in claim 1 wherein said flow means includes a venturi device.
Claim 6
Dependent Claim
31 words
The apparatus as defined in claim 4 wherein said venturi device is connected to a differential pressure cell to generate a signal responsive to a pressure drop across said venturi device.
Claim 7
Dependent Claim
22 words
The apparatus for testing a fluid as defined in claim 1 and further including two flow means of differing rated flow rates.
Claim 8
Dependent Claim
28 words
The apparatus as defined in claim 1 and further including converter means to convert analog electric signals to digital output signals .Iadd.coupled to said means for simultaneous recording.Iaddend..
Claim 9
Dependent Claim
38 words
The apparatus as defined in claim 7 and additionally comprising means to calculate .Iadd.a .Iaddend.fouling .Iadd.factor .Iaddend.from .[.said.]. fouling data .Iadd.comprising said measured fluid temperature, preselect quantity of electrical energy, measured wall temperature and velocity of said fluid.Iaddend..
Claim 10
Dependent Claim
23 words
The apparatus as defined in claim 1 wherein said apparatus is supported on a movable structure within a chamber having environmental regulating capabilities.
Claim 11
Dependent Claim
14 words
The apparatus as defined in claim 9 wherein said movable structure is a van.
Claim 12
Dependent Claim
25 words
The apparatus as defined in claim 1 and further comprising means to disable said means for supplying electrical energy at a preselect elevated temperature condition.
Claim 13
Dependent Claim
126 words
A process for testing a fluid to be passed through a unit in an indirect heat transfer relationship to monitor and record fouling data and other parameters which comprises: (a) connecting said unit in fluid flow communication with a test zone of a mobile assembly said test zone including a heating member having a source of heat; (b) measuring temperature of said fluid; (c) energizing said source of heat; (d) measuring temperature of said heating member during passage of said fluid through said test zone; (e) measuring flow rate of said fluid; (f) monitoring and measuring .[.a parameter.]. .Iadd.parameters .Iaddend.of said fluid .[.selected from the group consisting of.]. .Iadd.comprising .Iaddend.corrosion, pH and conductivity; and (g) simultaneously recording the data of steps (b), (d), .Iadd.(e) .Iaddend.and (f).
Claim 14
Dependent Claim
126 words
A process for testing a fluid to be passed through a unit in an indirect heat transfer relationship to monitor and record fouling data and other parameters which comprises: (a) connecting said unit in fluid flow communication with a test zone of a mobile assembly said test zone including a heating member having a source of heat; (b) measuring temperature of said fluid; (c) energizing said source of heat; (d) measuring temperature of said heating member during passage of said fluid through said test zone; (e) measuring flow rate of said fluid; (f) monitoring and measuring .[.a parameter.]. .Iadd.parameters .Iaddend.of said fluid .[.selected from the group consisting of.]. .Iadd.comprising .Iaddend.corrosion, pH and conductivity; and (g) simultaneously recording the data of steps (b), (d), .Iadd.(e) .Iaddend.and (f).
Claim 15
Dependent Claim
21 words
The process as defined in claim 12 wherein said flow rate is measured by a differential pressure across a venturi zone.
Claim 16
Dependent Claim
20 words
The process as defined in claim 12 wherein said flow rate of said fluid is varied through said test zone.
Claim 17
Dependent Claim
27 words
The process as defined in claim 12 where said data is .[.also.]. recorded in a manner for further electronic transmissions to a data bank .[.for such unit.]..
Claim 18
Dependent Claim
13 words
The process as defined in claim 12 wherein said unit is on stream.
Claim 19
Dependent Claim
21 words
The process as defined in claim 16 wherein said fluid after passage through said test zone is returned to said unit.
Claim 20
Dependent Claim
23 words
The process as defined in claim 12 wherein said measurements are analog signals which are converted to digital signals prior to step (g).
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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) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |