CN103383340B - A kind of crude oil tanker oil cargo tank coating immersion test device - Google Patents
A kind of crude oil tanker oil cargo tank coating immersion test device Download PDFInfo
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- CN103383340B CN103383340B CN201310258945.9A CN201310258945A CN103383340B CN 103383340 B CN103383340 B CN 103383340B CN 201310258945 A CN201310258945 A CN 201310258945A CN 103383340 B CN103383340 B CN 103383340B
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Abstract
A kind of crude oil tanker oil cargo tank coating immersion test device relating to Marine Materials corrosion resistance test field, described device comprises constant water bath box and is placed in the condensing reflux formula immersion test container in constant water bath box, and immersion test container content has testing liquid; Immersion test container is made up of glass container and glass top cover; The top of glass container is mounted with one for hanging the pendency hanger of test piece; Glass top cover is provided with an opening be communicated with condensing reflux pipe bottom; The top of condensing reflux pipe is exhausr port, and the outer uniform winding of tube wall of condensing reflux pipe has the cooling water pipe connected with water chiller; Described device can the environmental aspect of heterogeneous acid oil mixing with water medium under true reappearance loading condition residing for crude oil Cargo Oil bunker oil district protective finish.
Description
[technical field]
The present invention relates to Marine Materials corrosion resistance test field, especially relating to a kind of immersion test device of decay resistance and environmental adaptability for simulating boats and ships crude oil Cargo Oil bunker oil district protective finish.
[background technology]
Known, IMO MSC.288 (87) " boats and ships crude oil oil cargo tank protective finish performance standard " issues in May, 2010 and enforces, it specifies in the preparation qualifying licensing examination selected about coating, and coating must by the submergence accelerated test of carrying out 180 days according to its annex 1 " the qualifying licensing examination program of crude oil carrier oil cargo tank protective finish " or equivalent test program; But, existing chamber many employings single-phase medium submergence for carrying out coating corrosion resistance immersion test, as single-phase salt water resistant test, chemical-resistant reagent test or resistance to product oil test etc., single-phase test like this cannot the environmental aspect of heterogeneous acid oil mixing with water medium under true reappearance loading condition residing for crude oil Cargo Oil bunker oil district protective finish, therefore also just cannot measure the adaptability of the oily district's coating of crude oil Cargo Oil bunker in complex environment accurately;
In addition, adopt airtight simple glass test chamber to carry out liquid medium immersion due in existing immersion test more, but in the process of the test of 180 days, the liquid in container certainly will will to volatilize expansions, and this just easily causes glass container to break because interior external pressure is unbalance; If glass container leaves discharge orifice, the volatile matter of then being discharged by discharge orifice can cause again the problems such as environmental pollution, testing liquid consumption or the change of test(ing) liquid chemical composition, even now add load onto the corresponding device automatically supplementing testing liquid can not the stability of test(ing) liquid chemical composition during warranty test completely;
Secondly, the non-closed glass test chamber of many employings in existing high temperature immersion test, but because liquid medium during hot test will certainly continual volatilization or evaporation, therefore, in process of the test, just need regular replenishment test liquid to make up volatilization or evaporate the minimizing of the total amount of liquid caused, and in the process of the test of reality, the liquid supplemented cannot keep the stability of test(ing) liquid media chemistry component, and the harmful toxic matter contained in test volatile matter also can cause certain corrosion contamination to environment.
[summary of the invention]
In order to overcome the deficiency in background technology; the invention discloses a kind of crude oil tanker oil cargo tank coating immersion test device; described device not only can the environmental aspect of heterogeneous acid oil mixing with water medium under the reproduction loading condition of true stereo residing for crude oil Cargo Oil bunker oil district protective finish; but also the pressure equilibrium during immersion test inside and outside test chamber can be ensured, and ensure that the chemical composition of bulk testing liquid is relatively stable.
For achieving the above object, the present invention adopts following technical scheme:
A kind of crude oil tanker oil cargo tank coating immersion test device, described device comprises that impermeability is good, the constant water bath box of acid resistance atmosphere long-term corrosion and multiple condensing reflux formula immersion test containers of being placed in constant water bath box; Described constant water bath box adopts the mode of heated water bath that the testing liquid temperature be loaded in immersion test container is remained on 60 ± 2 DEG C; Described testing liquid is the heterogeneous acid oil-water mixture containing bunker fuel oil, benzene+toluene Mixed Solvent, sulfuretted hydrogen and synthetic sea water; Described immersion test container is made up of flat cylindrical glass container and hemispherical glass top cover; The top of described flat cylindrical glass container is mounted with one, and for hanging the pendency hanger of the test piece of vertical immersion in testing liquid, this pendency hanger is corroded by resistance to testing liquid, and does not make with the material of testing liquid generation chemical reaction; Described glass top cover is provided with an opening, and this opening is communicated with the bottom of a condensing reflux pipe by the pipeline of the through constant water bath box of sealing; The top of described condensing reflux pipe is exhausr port, and the outer uniform winding of tube wall of condensing reflux pipe has the cooling water pipe connected with water chiller;
Described testing liquid is first loaded in immersion test container when applying by described device, and make the height of testing liquid in glass container be 400mm, wherein aqueous phase is 20mm; Again the test piece of application coating to be measured is hung in immersion test glass container by pendency hanger, and make in the testing liquid of the complete vertical immersion of test piece in glass container, simultaneously mutually isolated between warranty test model and do not block mutually; Then, the temperature of operation constant water bath box Control experiment solution is at 60 ± 2 DEG C and run 180 days, make to reproduce the environmental aspect of the heterogeneous acid oil mixing with water medium under loading condition residing for crude oil Cargo Oil bunker oil district protective finish in immersion test device, thus the protective finish be painted on test piece is tested; During test run, in glass container, the volatile matter of testing liquid is entered in condensing reflux pipe with the pipeline be connected by the opening of glass top cover, is then cooled by condensing reflux pipe, and is back in glass container after condensation liquefaction.
Described crude oil tanker oil cargo tank coating immersion test device, described testing liquid preparation steps is as follows:
A, take appropriate density≤0.89g/mL and meet the bunker fuel oil of ISO 8217-2005 standard DMA level rectifying, and by adding naphthenic acid, the acid number of bunker fuel oil being adjusted to 2.5 ± 0.1 mg KOH/g;
B, add and respectively account for the Benzene and Toluene of bunker fuel oil gross mass 4%;
C, add and account for the synthetic sea water of bunker fuel oil gross mass 5.0 ± 0.2%;
D, interpolation hydrogen sulfide solution, make the concentration of hydrogen sulfide in overall test solution be 5.0 ± 1ppm.
Described crude oil tanker oil cargo tank coating immersion test device, described constant water bath box is connected with the senior microprocessor controller that corresponding tool LED shows.
Described crude oil tanker oil cargo tank coating immersion test device, described immersion test container is six.
Described crude oil tanker oil cargo tank coating immersion test device, described immersion test container adopts the glass container of 240 (overall diameter)/220 (interior diameter) × 450 (height) mm, and diameter is the glass top cover of 250mm; Described glass container inner top is arranged as the pendency hanger of diameter 215mm.
Described crude oil tanker oil cargo tank coating immersion test device, described pendency hanger is made up of insulated nylon material.
Owing to adopting technical scheme as above, the present invention has following beneficial effect:
Crude oil tanker oil cargo tank coating immersion test apparatus structure of the present invention is simple, convenient operation, described device can in coating corrosion resistance immersion test true stereo reproduction loading condition under the environmental aspect of heterogeneous acid oil mixing with water medium residing for crude oil Cargo Oil bunker oil district protective finish, measure the adaptability of crude oil Cargo Oil bunker oil district's coating in complex environment accurately therefore, it is possible to corresponding; In addition, described device not only can ensure the pressure equilibrium inside and outside test chamber during immersion test, thus effectively avoid immersion test container to break, and described device can also make bulk testing liquid in bulk testing process, keep the relative stability of its chemical composition.
[accompanying drawing explanation]
Fig. 1 is schematic diagram of the present invention.
In figure: 1, constant water bath box; 2, testing liquid; 3, glass container; 4, glass top cover; 5, dangle hanger; 6, test piece; 7, condensing reflux pipe; 8, water chiller; 9, cooling water pipe.
[embodiment]
Can explain the present invention in more detail by the following examples, disclose object of the present invention and be intended to protect all changes and improvements in the scope of the invention, the present invention is not limited to the following examples:
A kind of crude oil tanker oil cargo tank coating immersion test device by reference to the accompanying drawings described in 1, described device comprises that impermeability is good, the constant water bath box 1 of acid resistance atmosphere long-term corrosion and six condensing reflux formula immersion test containers being placed in constant water bath box 1, described constant water bath box 1 is connected with the senior microprocessor controller that corresponding tool LED shows, and it can adopt the mode of heated water bath that testing liquid 2 temperature be loaded in immersion test container is remained on 60 ± 2 DEG C, namely constant water bath box 1 can control by microprocessor controller the fresh water that heating is stored in case inner bottom part, thus the temperature utilizing the fresh water after heating dress to be stored in the testing liquid 2 in six immersion test containers controls to remain on 60 ± 2 DEG C, such type of heating not only temperature stabilization, homogeneous heating, but also it is reliable and the automatic maintenance of water level can be ensured, described testing liquid 2 is the heterogeneous acid oil-water mixture containing bunker fuel oil, benzene+toluene Mixed Solvent, sulfuretted hydrogen and synthetic sea water, this testing liquid 2 dress is stored in the glass container 3 in immersion test container, it is highly 400mm that its dress is deposited, and requires the aqueous phase of generation 20 mm,
Wherein, described testing liquid 2 preparation steps is as follows:
A, take appropriate density≤0.89g/mL and meet the bunker fuel oil of ISO 8217-2005 standard DMA level rectifying, and by adding naphthenic acid, the acid number of bunker fuel oil being adjusted to 2.5 ± 0.1 mg KOH/g;
B, add and respectively account for the Benzene and Toluene of bunker fuel oil gross mass 4%, the Benzene and Toluene namely added accounts for 4% of bunker fuel oil gross mass respectively;
C, add and account for the synthetic sea water of bunker fuel oil gross mass 5.0 ± 0.2%;
D, interpolation hydrogen sulfide solution, make described testing liquid when the concentration of hydrogen sulfide in overall test solution is 5.0 ± 1ppm.
Described immersion test container is that the hemispherical glass top cover 4 of 250mm is formed by being of a size of the flat cylindrical glass container 3 of 240 (overall diameter)/220 (interior diameter) × 450 (height) mm and diameter; The inner top of described glass container 3 is mounted with one for hanging the pendency hanger 5 of the test piece 6 of vertical immersion in testing liquid 2, this pendency hanger 5 diameter is 215mm, it is corroded by resistance to testing liquid 2, and the insulated nylon material that chemical reaction does not occur with testing liquid 2 is made; Described glass top cover 4 is provided with an opening, this opening is communicated with the bottom of a condensing reflux pipe 7 by the pipeline of the through constant water bath box 1 of sealing, the top of condensing reflux pipe 7 is exhausr port, the outer even distance of the tube wall of condensing reflux pipe 7 is wound with the cooling water pipe 9 connected with water chiller 8, thus reach utilize water chiller 8 to provide to cooling water pipe 9 recirculated water to the object of the condensing reflux pipe 7 that cools;
In sum; for ensureing the pressure equilibrium inside and outside immersion test container at duration of test; the glass container 3 in immersion test container is avoided to occur breakage; ensure that the component of testing liquid 2 is relatively stable at duration of test simultaneously; and solution does not consume or only trace consumes; described device adopts condensing reflux formula immersion test container, namely carries out pressure protect by condensing reflux pipe 7 pairs of immersion test containers.
When implementing crude oil tanker oil cargo tank coating immersion test device of the present invention, be first loaded in immersion test container by described testing liquid 2, make the height of testing liquid 2 in glass container 3 be 400mm, wherein aqueous phase is 20mm, again will at corresponding test piece 6 outside surface brushing protective finish to be tested, again by pendency hanger 5 by test piece 6 vertical hanging in glass container 3, and make in the testing liquid 2 of the complete vertical immersion of test piece 6 in glass container 3, meanwhile, want mutually isolated between warranty test model 6 when placing and do not block mutually, then, operation constant water bath box 1, the temperature of testing liquid 2 is controlled after 60 ± 2 DEG C, run 180 days, make to reproduce the environmental aspect of the heterogeneous acid oil mixing with water medium under loading condition residing for crude oil Cargo Oil bunker oil district protective finish in immersion test device, thus the protective finish of brushing on test piece 6 is tested, during test run, in glass container 3, the volatile matter of testing liquid 2 enters in condensing reflux pipe 7 by the opening of glass top cover 4 with the pipeline be connected, then cooled by condensing reflux pipe 7, and be back in glass container 3 after condensation liquefaction, so not only overcome the risk that pressure adjusting is inaccurate caused, but also avoid and be directly vented the change of the testing liquid composition brought and the impact on environment, simultaneously, may discharge from the exhausr port on condensing reflux pipe 7 top owing to only having the volatile matter of few not cooled liquefaction, therefore, described device can not consuming or only trace consumption at the effective warranty test solution of duration of test.
Part not in the detailed description of the invention is prior art, therefore the present invention is not described in detail.
Claims (6)
1. a crude oil tanker oil cargo tank coating immersion test device, is characterized in that: described device comprises that impermeability is good, the constant water bath box of acid resistance atmosphere long-term corrosion (1) and multiple condensing reflux formula immersion test containers of being placed in constant water bath box (1); Described constant water bath box (1) adopts the mode of heated water bath that the testing liquid be loaded in immersion test container (2) temperature is remained on 60 ± 2 DEG C; Described testing liquid (2) is the heterogeneous acid oil-water mixture containing bunker fuel oil, benzene+toluene Mixed Solvent, sulfuretted hydrogen and synthetic sea water; Described immersion test container is made up of flat cylindrical glass container (3) and hemispherical glass top cover (4); The top of described flat cylindrical glass container (3) is mounted with one for hanging the pendency hanger (5) of the test piece (6) of vertical immersion in testing liquid (2), this pendency hanger (5) is corroded by resistance to testing liquid (2), and the material that chemical reaction does not occur with testing liquid (2) is made; Described glass top cover (4) is provided with an opening, and this opening is communicated with the bottom of a condensing reflux pipe (7) by the pipeline of the through constant water bath box of sealing (1); The top of described condensing reflux pipe (7) is exhausr port, and the outer uniform winding of tube wall of condensing reflux pipe (7) has the cooling water pipe (9) connected with water chiller (8);
Described testing liquid (2) is first loaded in immersion test container when applying by described device, and make the height of glass container (3) interior testing liquid (2) be 400mm, wherein aqueous phase is 20mm; Again the test piece (6) of application coating to be measured is hung in immersion test glass container (3) by pendency hanger (5), and make test piece (6) completely in the testing liquid (2) of vertical immersion in glass container (3), simultaneously mutually isolated between warranty test model (6) and do not block mutually; Then, the temperature of operation constant water bath box (1) Control experiment solution (2) runs 180 days at 60 ± 2 DEG C, make to reproduce the environmental aspect of the heterogeneous acid oil mixing with water medium under loading condition residing for crude oil Cargo Oil bunker oil district protective finish in immersion test device, thus the protective finish be painted on test piece (6) is tested; During test run, the volatile matter of glass container (3) interior testing liquid (2) enters in condensing reflux pipe (7) by the opening of glass top cover (4) with the pipeline be connected, then cooled by condensing reflux pipe (7), and be back to after condensation liquefaction in glass container (3).
2. crude oil tanker oil cargo tank coating immersion test device according to claim 1, is characterized in that: described testing liquid (2) preparation steps is as follows:
A, take appropriate density≤0.89g/mL and meet the bunker fuel oil of ISO 8217-2005 standard DMA level rectifying, and by adding naphthenic acid, the acid number of bunker fuel oil being adjusted to 2.5 ± 0.1 mg KOH/g;
B, add and respectively account for the Benzene and Toluene of bunker fuel oil gross mass 4%;
C, add and account for the synthetic sea water of bunker fuel oil gross mass 5.0 ± 0.2%;
D, interpolation hydrogen sulfide solution, make described testing liquid (2) when the concentration of hydrogen sulfide in overall test solution is 5.0 ± 1ppm.
3. crude oil tanker oil cargo tank coating immersion test device according to claim 1, is characterized in that: described constant water bath box (1) is connected with the senior microprocessor controller that corresponding tool LED shows.
4. crude oil tanker oil cargo tank coating immersion test device according to claim 1, is characterized in that: be mounted with six immersion test containers in described constant water bath box (1).
5. crude oil tanker oil cargo tank coating immersion test device according to claim 1, it is characterized in that: described immersion test container adopts the glass container (3) of 240 (overall diameter)/220 (interior diameter) × 450 (height) mm, and diameter is the glass top cover (4) of 250mm; Described glass container (3) inner top is arranged as the pendency hanger (5) of diameter 215mm.
6. crude oil tanker oil cargo tank coating immersion test device according to claim 1 or 5, is characterized in that: described pendency hanger (5) is made up of insulated nylon material.
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| CN201310258945.9A CN103383340B (en) | 2013-06-26 | 2013-06-26 | A kind of crude oil tanker oil cargo tank coating immersion test device |
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| CN103383340B true CN103383340B (en) | 2015-08-12 |
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| CN201532354U (en) * | 2009-09-11 | 2010-07-21 | 上海化工研究院 | Metal testing device with heating end and condensing end |
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| EP2469265A1 (en) * | 2009-08-19 | 2012-06-27 | JFE Steel Corporation | Corrosion evaluation test method for ballast tank on ship |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008082963A (en) * | 2006-09-28 | 2008-04-10 | Jfe Steel Kk | Corrosion resistance test method, corrosion-resistant steel, and corrosion-resistant tank |
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Patent Citations (4)
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|---|---|---|---|---|
| EP2469265A1 (en) * | 2009-08-19 | 2012-06-27 | JFE Steel Corporation | Corrosion evaluation test method for ballast tank on ship |
| CN201532354U (en) * | 2009-09-11 | 2010-07-21 | 上海化工研究院 | Metal testing device with heating end and condensing end |
| CN202166602U (en) * | 2011-07-08 | 2012-03-14 | 中国石油天然气集团公司 | Intergranular corrosion test device capable of adjusting temperature and timing automatically |
| CN102928331A (en) * | 2012-11-12 | 2013-02-13 | 北京科技大学 | Test system for evaluating corrosivity of steel for upper deck of cargo oil tank of crude oil tanker |
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