CN108007974A - A kind of method for evaluating dirty layer protectiveness - Google Patents
A kind of method for evaluating dirty layer protectiveness Download PDFInfo
- Publication number
- CN108007974A CN108007974A CN201610965033.9A CN201610965033A CN108007974A CN 108007974 A CN108007974 A CN 108007974A CN 201610965033 A CN201610965033 A CN 201610965033A CN 108007974 A CN108007974 A CN 108007974A
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- assessed
- wall
- container
- dirty layer
- sheet resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of method for evaluating dirty layer protectiveness, device selected by it includes container to be assessed and sheet resistance measurement, container inner wall to be assessed has dirty layer, salting liquid is filled in container to be assessed, wall tie point and measuring electrode are provided with the outer wall of container to be assessed, measuring electrode one end is stretched into salting liquid, the other end is connected by connecting wire with sheet resistance measurement, treat wall tie point, after measuring loop being formed between sheet resistance measurement and measuring electrode, observe the resistance value of sheet resistance measurement, if its resistance is much larger than solution resistance, then show that the dirty layer isolation effect of container inner wall to be assessed is obvious, with protective effect；Conversely, then show that the dirty layer protectiveness of container inner wall to be assessed is poor.Pass through the method for the present invention, in that context it may be convenient to obtain the state of wall dirt layer in testing container, certain theoretical direction is provided for industrial production.
Description
Technical field
The present invention relates to a kind of method for evaluating dirty layer protectiveness, suitable for equipment or pipe surface dirt layer to equipment or pipe
The protectiveness evaluation of road bulk erosion.
Background technology
When in equipment or pipeline internal medium containing the easily material of deposition attachment, it is easy for forming dirt in equipment or pipe surface
Layer, fine and close dirty layer can play the role of completely cutting off medium, play a protective role, but compactness is poor, dirt with crackle
Layer, does not have protective effect not only, easily causes underdeposit corrosion on the contrary, aggravates the corrosion of equipment or pipeline.How it is evaluated
Protective valueDirty layer thickness, the role of evaluation that can not have been played with reference to parameters such as power.
The content of the invention
In view of the above-mentioned drawbacks of the prior art, the present invention proposes a kind of method for evaluating dirty layer protectiveness, the party
Method can realize the Fast Evaluation for the protective effect that equipment or pipe surface dirt layer corrode equipment or pipeline body.
Its technical solution includes：
A kind of method for evaluating dirty layer protectiveness, the device selected by it include container to be assessed and sheet resistance measurement, institute
Stating container inner wall to be assessed has dirty layer, the salting liquid of well conducting is filled in the container to be assessed, in the container to be assessed
Outer wall on be provided with wall tie point and measuring electrode, measuring electrode one end is stretched into the salting liquid, and the other end is by leading
Line is connected with the sheet resistance measurement, and the wall tie point is connected on the sheet resistance measurement by conducting wire, the method
Comprise the following steps：
After measuring loop is formed between wall tie point, sheet resistance measurement and measuring electrode, sheet resistance measurement is observed
Resistance value, if its resistance value is much larger than solution resistance, shows that the dirty layer isolation effect of container inner wall to be assessed is obvious, has and protects
The effect of shield property；Conversely, then show that the dirty layer protectiveness of container inner wall to be assessed is poor.
As the preferred solution of the present invention, the container to be assessed is provided with opening, and the opening passes through air bag
Sealer is blocked, and the measuring electrode is stretched into the salting liquid after passing through the air sac sealing device.
As another preferred solution of the present invention, the air sac sealing device is additionally provided with exhaust outlet.
Preferably, the salting liquid is sodium carbonate liquor.
Advantageous effects caused by the present invention：
By being connected with the salting liquid in measuring electrode and container to be assessed, the other end is connected by conducting wire with wall, this
Sample forms a measuring loop between measuring electrode, sheet resistance measurement and wall tie point, starts to test, if in container to be assessed
When the dirty layer of wall has slight crack, sheet resistance measurement resistance at this time is smaller；If dirty layer is compact and complete, the resistance of resistance measurement detection
Value is much larger than its solution resistance.
Pass through detection method, in that context it may be convenient to obtain the state of the dirty layer of testing container inner wall, be industrial production
Certain theoretical direction is provided.
Brief description of the drawings
The present invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is used apparatus structure schematic diagram by the present invention；
Fig. 2 is the apparatus structure schematic diagram with air sac sealing device；
In figure, 1, container to be assessed, 2, salting liquid, 3, wall tie point, 4, measuring electrode, 5, sheet resistance measurement, 6, lead
Line, 7, air sac sealing device.
Embodiment
The present invention proposes a kind of method for evaluating dirty layer protectiveness, in order to make advantages of the present invention, technical solution more
It is clear, clear and definite, elaborate with reference to specific embodiment to the present invention.
As shown in Figure 1, the device selected by the method for the present invention is molten including 1/ pipeline of container to be assessed, sheet resistance measurement 5, salt
Liquid 2 and conducting wire 6, have dirty layer (fine and close or unknown with crackle), salting liquid such as sodium carbonate in 1/ inner-walls of duct of container to be assessed
The conducting solutions such as solution, sodium chloride solution, are both needed at detection be full of salting liquid, to be assessed needed for container inner wall to be assessed
Wall tie point 3 and measuring electrode 4 are provided with the outer wall of container 1, measuring electrode one end is stretched into salting liquid, and the other end passes through
The conducting wire 6 of connection is connected with sheet resistance measurement 5, and wall tie point is connected on sheet resistance measurement 5 by conducting wire.
Above-mentioned container to be assessed can be tank body or other conventional shapes, preferred to measuring electrode and appearance to be assessed is avoided
The wall contact of device, can be blocked at vessel port to be assessed by air sac sealing device 7, as shown in Fig. 2, measuring electrode
Stretch into salting liquid after through air sac sealing device, due to being expanded when air sac sealing device is inflated, can both realize to container to be assessed
Closure, and can be contacted to avoid it with container to be assessed.
Evaluation method of the present invention is：After measuring loop is formed between wall tie point, sheet resistance measurement and measuring electrode,
The resistance value of sheet resistance measurement is observed, if its resistance is much larger than solution resistance, shows the dirty layer protection of container inner wall to be assessed
Property is preferable；Conversely, then show that the dirty layer protectiveness of container inner wall to be assessed is poor.
It should be noted that any equivalent way that those skilled in the art are made under the teaching of this specification, or
Obvious variant should all be within the scope of the present invention.
Claims (4)
1. a kind of method for evaluating dirty layer protectiveness, the device selected by it includes container to be assessed and sheet resistance measurement, described
Container inner wall to be assessed has dirty layer, it is characterised in that：The salting liquid of well conducting is filled in the container to be assessed, is treated described
Assess and be provided with wall tie point and measuring electrode on the outer wall of container, measuring electrode one end is stretched into the salting liquid, another
End is connected by conducting wire with the sheet resistance measurement, and the wall tie point is connected on the sheet resistance measurement by conducting wire,
It the described method comprises the following steps：
After measuring loop is formed between wall tie point, sheet resistance measurement and measuring electrode, the resistance of sheet resistance measurement is observed
Value, if its resistance value is much larger than solution resistance, shows that the dirty layer isolation effect of container inner wall to be assessed is obvious, has protectiveness
Effect；Conversely, then show that the dirty layer protectiveness of container inner wall to be assessed is poor.
2. the method for the dirty layer protectiveness of evaluation according to claim 1, it is characterised in that：The container to be assessed is provided with
Opening, the opening are blocked by air sac sealing device, and the measuring electrode stretches into institute after passing through the air sac sealing device
State in salting liquid.
3. the method for the dirty layer protectiveness of evaluation according to claim 2, it is characterised in that：The air sac sealing device is also set up
There is exhaust outlet.
4. the method for the dirty layer protectiveness of evaluation according to claim 1, it is characterised in that：The salting liquid is molten for sodium carbonate
Liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965033.9A CN108007974A (en) | 2016-10-31 | 2016-10-31 | A kind of method for evaluating dirty layer protectiveness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965033.9A CN108007974A (en) | 2016-10-31 | 2016-10-31 | A kind of method for evaluating dirty layer protectiveness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108007974A true CN108007974A (en) | 2018-05-08 |
Family
ID=62048487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610965033.9A Pending CN108007974A (en) | 2016-10-31 | 2016-10-31 | A kind of method for evaluating dirty layer protectiveness |
Country Status (1)
| Country | Link |
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| CN (1) | CN108007974A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208009A (en) * | 2018-09-26 | 2019-01-15 | 江苏清源管道技术有限公司 | A kind of pipeline corrosion protection system of metro area |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674932A (en) * | 1992-03-11 | 1994-03-18 | Agip Spa | Method for monitoring state of protecting film for submerged or embedded pipe line or other metal structure andmethod for positioning separation of protecing film |
| CN103502794A (en) * | 2010-12-21 | 2014-01-08 | 涂层国外知识产权有限公司 | Process for evaluating corrosion resistance of coating |
| CN203413284U (en) * | 2013-08-14 | 2014-01-29 | 王伟 | Air bag type explosive medium pipeline plugging device |
| CN103901078A (en) * | 2014-04-04 | 2014-07-02 | 天津瑞唐涂装科技有限公司 | Detection method of teflon coating |
-
2016
- 2016-10-31 CN CN201610965033.9A patent/CN108007974A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674932A (en) * | 1992-03-11 | 1994-03-18 | Agip Spa | Method for monitoring state of protecting film for submerged or embedded pipe line or other metal structure andmethod for positioning separation of protecing film |
| CN103502794A (en) * | 2010-12-21 | 2014-01-08 | 涂层国外知识产权有限公司 | Process for evaluating corrosion resistance of coating |
| CN203413284U (en) * | 2013-08-14 | 2014-01-29 | 王伟 | Air bag type explosive medium pipeline plugging device |
| CN103901078A (en) * | 2014-04-04 | 2014-07-02 | 天津瑞唐涂装科技有限公司 | Detection method of teflon coating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208009A (en) * | 2018-09-26 | 2019-01-15 | 江苏清源管道技术有限公司 | A kind of pipeline corrosion protection system of metro area |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180508 |
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| RJ01 | Rejection of invention patent application after publication |