US4346587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for testing fluids for fouling and antifoulant protocol
Assignee: Ashland Inc
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Filing: 1980-10-30
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Granted: 1982-08-31
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Expires: 2000-10-30
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 and generation of foulant data to permit substantially simultaneous implementation of the antifoulant protocol of the fluid passing therethrough and including monitoring and recording apparatus together with a source of antifoulants for controlled introduction into the fluid. The heat transfer test assembly includes a heating member for controlled heat input and thermocouples to measure the wall temperature of the 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. The heat transfer test assembly is placed in fluid communication with a source of antifoulants of controlled dosage with concomitant evaluation of efficaciousness of the antifoulant protocol on the fluid.
Inventors
- 👤 Nicholas J. Brindak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:16
CPC Classifications
G; G01; G01N; G01N17/00; G01N17/008; G01N33/00; G01N33/18; G01N33/1893
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
151 words
An apparatus for testing a fluid to generate fouling data and other parameters to develop an antifoulant protocol for said fluid, which comprises: a piping assembly including fluid inlet and outlet means and a heat transfer test assembly, said heat transfer test assembly including a heating member including 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 pre-select 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 generating fouling data from said pre-select quantity of electrical energy supplied to said heating element, said measured temperature of said fluid and said measured wall temperature of said heating member; and means for introducing an antifoulant into said fluid.
Claim 2
Independent Claim
151 words
An apparatus for testing a fluid to generate fouling data and other parameters to develop an antifoulant protocol for said fluid, which comprises: a piping assembly including fluid inlet and outlet means and a heat transfer test assembly, said heat transfer test assembly including a heating member including 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 pre-select 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 generating fouling data from said pre-select quantity of electrical energy supplied to said heating element, said measured temperature of said fluid and said measured wall temperature of said heating member; and means for introducing an antifoulant into said fluid.
Claim 3
Dependent Claim
14 words
The apparatus as defined in claim 1 and further comprising a flow control valve.
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
21 words
The apparatus as defined in claim 1 and further including converter means to convert analog electric signals to digital output signals.
Claim 9
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 10
Dependent Claim
14 words
The apparatus as defined in claim 8 wherein said movable structure is a van.
Claim 11
Dependent Claim
29 words
The apparatus as defined in claim 1 and further comprising means to disable said means for supplying electrical energy to said heating element at a pre-select elevated temperature condition.
Claim 12
Dependent Claim
118 words
A process for testing a fluid to be passed through a unit in an indirect heat transfer relationship to develop an antifoulant protocol for said fluid, 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 a temperature of said fluid; (c) providing source of heat with a pre-select quantity of electrical energy; (d) measuring wall temperature of said heating member during passage of said fluid through said test zone; (e) measuring a flow rate of said fluid; (f) generating fouling data; and (g) introducing an antifoulant into said fluid while continuing steps (b) to (e).
Claim 13
Dependent Claim
118 words
A process for testing a fluid to be passed through a unit in an indirect heat transfer relationship to develop an antifoulant protocol for said fluid, 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 a temperature of said fluid; (c) providing source of heat with a pre-select quantity of electrical energy; (d) measuring wall temperature of said heating member during passage of said fluid through said test zone; (e) measuring a flow rate of said fluid; (f) generating fouling data; and (g) introducing an antifoulant into said fluid while continuing steps (b) to (e).
Claim 14
Dependent Claim
21 words
The process as defined in claim 11 wherein the quantity and kind of antifoulant is varied to develop said antifoulant protocol.
Claim 15
Dependent Claim
21 words
The process as defined in claim 11 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 11 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 11 wherein 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 11 wherein said unit is on stream.
Claim 19
Dependent Claim
22 words
The process as defined in claim 15 wherein said fluid after passage through said test zone is continuously recycled to said unit.
Claim 20
Dependent Claim
29 words
The process as defined in claim 11 wherein steps (b) to (e) generated an analog signal convertable to a digital signal which is recorded together with said fouling data.
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) | 1985-08-30 | 1986-03-01 | 1986-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-30 | 1990-03-01 | 1990-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-30 | 1994-03-01 | 1994-08-31 | $7700.00 | Window Closed / Lapsed |