CN104614305A - Simulation test device for detecting deck steel corrosion resistance on oil cargo tank and use method of simulation test device - Google Patents
Simulation test device for detecting deck steel corrosion resistance on oil cargo tank and use method of simulation test device Download PDFInfo
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- CN104614305A CN104614305A CN201510051692.7A CN201510051692A CN104614305A CN 104614305 A CN104614305 A CN 104614305A CN 201510051692 A CN201510051692 A CN 201510051692A CN 104614305 A CN104614305 A CN 104614305A
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Abstract
The invention relates to a simulation test device for detecting deck steel corrosion resistance on oil cargo tank and a use method of simulation test device. The test device comprises a reaction kettle, and an outer tank body (5) for containing the reaction kettle, wherein the reaction kettle comprises a kettle body (14) and a kettle cover (13), a gas source (1) is orderly connected with a gas flow controller (3) and a gas mixer (4) through a gas circuit (2), a gas inlet interface is connected with the kettle cover (13); a gas outlet interface of the kettle cover (13) is connected with a tail gas processor (18); an outer tank body temperature measuring probe (7) is arranged in the outer tank body (5), an outer tank body temperature control element (6) is arranged at the top of the outer tank body (5); a temperature control water circulator (16) is communicated with the kettle cover (13) through a water pipe (15); a kettle bottom temperature control element (10) is arranged at the bottom of the kettle body (14); a distilled water temperature measurement probe (9) is arranged in the distilled water in the kettle body (14); a sample temperature measurement probe (8) and a sample temperature regulating plate are arranged in a sample installing groove (12). The device disclosed by the invention is simple and convenient to operate, precise in control, stable in operation, and the experiment environment well accords with actual service condition.
Description
Technical field
The invention belongs to metallic material corrosion detection field, particularly a kind of simulation test device and using method detecting crude oil carrier oil cargo tank upper deck steel corrosion resistance.
Background technology
The oil cargo tank of oil carrier is the main carriers of delivery crude oil.During carried of crude oil, the outer deck of direct sunlight on daytime, temperature in cabin is raised fast, and night, temperature reduced, and in cabin, temperature also declines thereupon, made oil cargo tank upper deck temperature in periodically height alternately change.In the process, what formed in the body of cabin comprises H
2s, SO
2little with the gas temperature change of the complicated components such as water vapor.Therefore, the lower surface of upper deck is in drying regime when high temperature, and because water vapor condensation is in dampness during low temperature, upper deck lower surface there occurs serious corrosion in this environment, transports safely cause very big hidden danger to oil carrier.Therefore, the Corrosion monitoring equipment meeting oil carrier oil cargo tank upper deck steel corrosion mechanism is developed significant.Oil carrier oil cargo tank upper deck steel Service Environment is very complicated, and the Corrosion monitoring equipment of use must meet the reaction mechanism under its service state, and makes experimental enviroment as far as possible close to actual Service Environment.This just requires the atmosphere that testing equipment can provide complicated, and meet sample is in periodically alternation of wetting and drying state feature by tip heat transfer temperature control, bottom surface single-sided corrosion and corrosion surface, in addition, the high precision that equipment should be able to realize vapour content and steam temperature in specimen temperature, gas controls, and make experimental enviroment closer to actual conditions, so that it is more accurate to make corrosion examine result.
Chinese invention patent application No.201210449480.0 (publication number CN102928331A), name is called " a kind of experimental system evaluating upper deck of cargo oil tank of crude oil tanker steel corrosion performance ", and Chinese utility model patent application No.201420307842.7, name is called that " a kind of deck steel corrosion stability Rapid testing device " all discloses a kind of experimental system of oil cargo tank upper deck steel corrosion performance, its common trait is: its reactive system is made up of reactor and constant water bath box, soak in the water in constant water bath box bottom reactor, and in the middle part of reactor and top is directly exposed in air.Control distilled water temperature in reactor by constant water bath box, its objective is and connect water vapour content and temperature in control still.This method has the following disadvantages: the first, and this temperature control method belongs to by the indirect temperature control of the water in constant water bath box, and energy consumption is comparatively large and temperature controls insensitive; Second, distilled water temperature is not only subject to the temperature impact of the outer water of kettle, also can affect by gas reactor temperature, the temperature of constant water bath box is constant, and gas reactor temperature is change, therefore this method cannot realize the accurate control of distilled water temperature, thus affects the content of water vapor in still; 3rd, because in the middle part of reactor and top is directly exposed in air, in still, steam temperature is also subject to laboratory temperature impact, and therefore this method also cannot realize the accurate control to distilled water temperature.Therefore, this method causes experimental result accuracy and stability to reduce.
Summary of the invention
In view of above-mentioned technical matters, the object of the present invention is to provide test unit and the using method thereof of the detection oil cargo tank upper deck steel corrosion resistance that a kind of structure is simple, reliable, energy consumption is little, temperature control is sensitive, easy to operate.
In order to achieve the above object, the invention provides following technical scheme:
Detect a simulation test device for oil cargo tank upper deck steel corrosion resistance, it comprises reactor, the outer case 5 holding reactor, gas control unit, outer case control temperature unit, recirculated water control temperature unit, sample temperature adjustment control temperature unit and intelligence control unit 17;
Described reactor comprises kettle 14 and kettle cover 13, and the two can realize air seal, and kettle 14 splendid attire recirculated water, is regulated and controled by recirculated water control temperature unit; There is the sample mounting groove 12 for installing sample the bottom surface of kettle cover 13, and sample is regulated and controled by sample temperature adjustment control temperature unit; Reactor inside is regulatable gaseous environment, is regulated and controled by gas control unit.
Described gas control unit comprises source of the gas 1, gas flow controller 3, carbo-charger 4, gas circuit 2, wireway 11 and exhaust gas treating device 18; Wherein, source of the gas 1 is connected by gas circuit 2 successively with gas flow controller 3, carbo-charger 4, and is connected to the intake interface of the kettle cover 13 of reactor through outer case 5; Described intake interface connects wireway 11; The interface of giving vent to anger of the kettle cover 13 of reactor is connected with exhaust gas treating device 18 by gas circuit 2.
Described outer case control temperature unit comprises outer case temperature probe 7 and outer case temp-controlling element 6, and described outer case temperature probe 7 is arranged in the inner middle part of outer case 5, and its wire is connected with intelligence control unit 17 through outer case 5; Outer case temp-controlling element 6 is arranged in outer case 5 top, and its wire is connected with intelligence control unit 17.
Described recirculated water control temperature unit comprises temp-controlling element 10 and distilled water temperature probe 9 at the bottom of temperature control water circulator 16, water pipe 15, still; Described temperature control water circulator 16 is communicated with kettle cover 13 through outer case 5 by water pipe 15; Temp-controlling element 10 at the bottom of still is arranged in bottom kettle 14, and its wire is connected with intelligence control unit 17 through outer case 5; Described distilled water temperature probe 9 is arranged in the distilled water of kettle 14, and its wire is connected with intelligence control unit 17 with kettle cover 13 through outer case 5.
Described sample temperature adjustment control temperature unit comprises sample temperature probe 8 and sample temperature control panel; Described sample temperature probe 8 is arranged in sample mounting groove 12, and contacts with sample; Described sample temperature control panel is arranged in sample mounting groove 12.
The middle part of kettle cover 13 is provided with intake interface and interface of giving vent to anger.
Under the endpiece of wireway 11 is positioned at the distilled water liquid level of kettle 14.
Described source of the gas 1 provides multiple test reacting gas, and described gas flow controller 3 controls reaction gas flow, and described carbo-charger 4 makes reacting gas fully mix and avoids reactor liquid suck-back.
Gas circuit pipe Load materials is not for react with test reacting gas.
Described exhaust gas treating device 18 is for absorbing sulfuretted hydrogen in tail gas and sulphuric dioxide.
Described intelligence control unit 17 controls the duty of temp-controlling element 10 at the bottom of outer case temp-controlling element 6, still, temperature control water circulator 16 and sample temperature control panel respectively according to the temperature information that each probe records, realize circulating water temperature and periodically just alternately change control, realize the accurate control of distilled water temperature and outer case 5 environment temperature in still.
A using method for the test unit of described detection oil cargo tank upper deck steel corrosion resistance, it comprises the steps:
A, sample is installed to the sample mounting groove 12 of kettle cover 13, adds distilled water in a kettle., guarantee that wireway 11 lower end and distilled water temperature probe 9 thermometric end are in underwater;
B, by kettle cover 13 and kettle 14 connection, connect the leakproofness of testing fixture after gas control unit;
C, every test parameters is set by intelligence control unit 17, opens source of the gas, gas meter successively, start test.
Compared with prior art, beneficial effect of the present invention is:
Structure of the present invention is simple, and reliable, energy consumption is little, and temperature control is sensitive, easy to operate; Its plant running principle is consistent with actual Service Environment, can provide complicated atmosphere, and meets sample is in periodicity alternation of wetting and drying state feature by tip heat transfer temperature control, bottom surface single-sided corrosion and corrosion surface; The high precision that can realize vapour content and steam temperature in specimen temperature, gas controls, and temperature control is sensitive, and corrosion experiment result is accurate, stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the test unit of detection oil cargo tank upper deck steel corrosion resistance of the present invention.
[primary clustering symbol description]
1 source of the gas
2 gas circuits
3 gas flow controllers
4 carbo-chargers
5 outer case
6 outer case temp-controlling elements
7 outer case temperature probes
8 sample temperature probes
9 distilled water temperature probes
Temp-controlling element at the bottom of 10 stills
11 wireways
12 sample mounting grooves
13 kettle covers
14 kettlies
15 water pipes
16 temperature control water circulators
17 intelligence control unit
18 exhaust gas treating devices
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
Fig. 1 is the structural representation of the test unit of detection oil cargo tank upper deck steel corrosion resistance of the present invention.
The test unit of detection oil cargo tank upper deck steel corrosion resistance of the present invention comprises reactor, outer case 5, gas control unit, outer case control temperature unit, recirculated water control temperature unit, sample control temperature unit and intelligence control unit 17.
Described reactor comprises kettle 14 and kettle cover 13, and kettle 14 can splendid attire distilled water, and there is the sample mounting groove 12 for installing sample the bottom surface of kettle cover 13; The middle part of kettle cover 13 is provided with intake interface and interface of giving vent to anger.
Described outer case 5 inside holds reactor, and its function ensures that reactor ambient temperature is stablized controlled.
Described gas control unit comprises the source of the gas 1 carrying the reacting gas that is for experiment, the gas flow controller 3 controlling reaction gas flow, reacting gas is fully mixed and can avoid the carbo-charger 4 of reactor liquid suck-back, gas circuit 2, wireway 11 and exhaust gas treating device 18.Wherein, source of the gas 1 is connected by gas circuit 2 successively with gas flow controller 3, carbo-charger 4, and is connected to the intake interface of the kettle cover 13 of reactor through outer case 5.Described intake interface connects wireway 11, under the endpiece of wireway 11 is positioned at the distilled water liquid level of kettle 14.The interface of giving vent to anger of the kettle cover 13 of reactor is connected with exhaust gas treating device 18 by gas circuit 2.The material of described gas circuit 2 should not react with test gas; Described exhaust gas treating device 18 can absorb the toxic gas in tail gas, as sulfuretted hydrogen and sulphuric dioxide.
Described outer case control temperature unit comprises outer case temperature probe 7 and outer case temp-controlling element 6.Described outer case temperature probe 7 is arranged in the inner middle part of outer case 5, and its wire is connected with intelligence control unit 17 through outer case 5.Outer case temp-controlling element 6 is arranged in outer case 5 top, and its wire is connected with intelligence control unit 17.
Described recirculated water control temperature unit comprises temp-controlling element 10 and distilled water temperature probe 9 at the bottom of temperature control water circulator 16, water pipe 15, still.Described temperature control water circulator 16 is communicated with kettle cover 13 through outer case 5 by water pipe 15.Temp-controlling element 10 at the bottom of still is arranged in bottom kettle 14, and its wire is connected with intelligence control unit 17 through outer case 5, can carry out temperature control to distilled water.Described distilled water temperature probe 9 is arranged in the distilled water of kettle 14, and its wire is connected with intelligence control unit 17 with kettle cover 13 through outer case 5.
Described sample control temperature unit comprises sample temperature probe 8 and sample temperature control panel.Described sample temperature probe 8 is arranged in sample mounting groove 12, and contacts with sample.Described sample temperature control panel is arranged in sample mounting groove 12.
The temperature information that described intelligence control unit 17 can record according to each probe controls the duty of temp-controlling element 10 at the bottom of outer case temp-controlling element 6, still, temperature control water circulator 16 and sample temperature control panel respectively, realize circulating water temperature and periodically just alternately change control, realize the accurate control of distilled water temperature and outer case 5 environment temperature in still.
The using method of the test unit of detection oil cargo tank upper deck steel corrosion resistance of the present invention, comprises the steps:
A, sample is installed to the sample mounting groove 12 of kettle cover 13, adds distilled water in a kettle., guarantee that wireway 11 lower end and distilled water temperature probe 9 thermometric end are in underwater;
B, by kettle cover 13 and kettle 14 connection, connect the leakproofness of testing fixture after gas control unit, guarantee device gas-tight;
C, every test parameters is set by intelligence control unit 17, opens source of the gas, gas meter successively, start test.
Claims (12)
1. detect a simulation test device for oil cargo tank upper deck steel corrosion resistance, it is characterized in that:
Comprise reactor, the outer case (5) holding reactor, gas control unit, outer case control temperature unit, recirculated water control temperature unit, sample temperature adjustment control temperature unit and intelligence control unit (17);
Described reactor comprises kettle (14) and kettle cover (13), and the two can realize air seal, and kettle (14) splendid attire recirculated water, is regulated and controled by recirculated water control temperature unit; There is the sample mounting groove (12) for installing sample the bottom surface of kettle cover (13), and sample is regulated and controled by sample temperature adjustment control temperature unit; Reactor inside is regulatable gaseous environment, is regulated and controled by gas control unit.
2. the test unit of detection oil cargo tank upper deck steel corrosion resistance according to claim 1, is characterized in that: described gas control unit comprises source of the gas (1), gas flow controller (3), carbo-charger (4), gas circuit (2), wireway (11) and exhaust gas treating device (18); Wherein, source of the gas (1) is connected by gas circuit (2) successively with gas flow controller (3), carbo-charger (4), and is connected to the intake interface of the kettle cover (13) of reactor through outer case (5); Described intake interface connects wireway (11); The interface of giving vent to anger of the kettle cover (13) of reactor is connected with exhaust gas treating device (18) by gas circuit (2).
3. the test unit of detection oil cargo tank upper deck steel corrosion resistance according to claim 1, it is characterized in that: described outer case control temperature unit comprises outer case temperature probe (7) and outer case temp-controlling element (6), described outer case temperature probe (7) is arranged in the inner middle part of outer case (5), and its wire is connected with intelligence control unit (17) through outer case (5); Outer case temp-controlling element (6) is arranged in outer case (5) top, and its wire is connected with intelligence control unit (17).
4. the test unit of detection oil cargo tank upper deck steel corrosion resistance according to claim 1, is characterized in that: described recirculated water control temperature unit comprises temp-controlling element (10) and distilled water temperature probe (9) at the bottom of temperature control water circulator (16), water pipe (15), still; Described temperature control water circulator (16) is communicated with kettle cover (13) through outer case (5) by water pipe (15); Temp-controlling element at the bottom of still (10) is arranged in kettle (14) bottom, and its wire is connected with intelligence control unit (17) through outer case (5); Described distilled water temperature probe (9) is arranged in the distilled water of kettle (14), and its wire is connected with intelligence control unit (17) with kettle cover (13) through outer case (5).
5. the test unit of detection oil cargo tank upper deck steel corrosion resistance according to claim 1, is characterized in that: described sample temperature adjustment control temperature unit comprises sample temperature probe (8) and sample temperature control panel; Described sample temperature probe (8) is arranged in sample mounting groove (12), and contacts with sample; Described sample temperature control panel is arranged in sample mounting groove (12).
6. the test unit of detection oil cargo tank upper deck steel corrosion resistance according to claim 1, is characterized in that: the middle part of kettle cover (13) is provided with intake interface and interface of giving vent to anger.
7. the test unit of detection oil cargo tank upper deck steel corrosion resistance according to claim 1, is characterized in that: under the endpiece of wireway (11) is positioned at the distilled water liquid level of kettle (14).
8. the test unit of detection oil cargo tank upper deck steel corrosion resistance according to claim 2, it is characterized in that: described source of the gas (1) provides multiple test reacting gas, described gas flow controller (3) controls reaction gas flow, and described carbo-charger (4) makes reacting gas fully mix and avoids reactor liquid suck-back.
9. the test unit of detection oil cargo tank upper deck steel corrosion resistance according to claim 2, is characterized in that: gas circuit pipe Load materials is not for react with test reacting gas.
10. the test unit of detection oil cargo tank upper deck steel corrosion resistance according to claim 2, is characterized in that: described exhaust gas treating device (18) is for absorbing sulfuretted hydrogen in tail gas and sulphuric dioxide.
The test unit of 11. detection oil cargo tank upper deck steel corrosion resistances according to claim 1, it is characterized in that: described intelligence control unit (17) controls the duty of temp-controlling element (10) at the bottom of outer case temp-controlling element (6), still, temperature control water circulator (16) and sample temperature control panel respectively according to the temperature information that each probe records, realize circulating water temperature and periodically just alternately change control, realize the accurate control of distilled water temperature and outer case (5) environment temperature in still.
The using method of the test unit of the detection oil cargo tank upper deck steel corrosion resistance of 12. 1 kinds of claims as described in one of 1-11, is characterized in that: it comprises the steps:
A, sample is installed to the sample mounting groove (12) of kettle cover (13), adds distilled water in a kettle., guarantee that wireway (11) lower end and distilled water temperature probe (9) thermometric end are in underwater;
B, by kettle cover (13) and kettle (14) connection, connect the leakproofness of testing fixture after gas control unit;
C, every test parameters is set by intelligence control unit (17), opens source of the gas, gas meter successively, start test.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510051692.7A CN104614305A (en) | 2015-01-30 | 2015-01-30 | Simulation test device for detecting deck steel corrosion resistance on oil cargo tank and use method of simulation test device |
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| CN201510051692.7A CN104614305A (en) | 2015-01-30 | 2015-01-30 | Simulation test device for detecting deck steel corrosion resistance on oil cargo tank and use method of simulation test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378841A (en) * | 2020-12-15 | 2021-02-19 | 广东火炬检测有限公司 | Metal hydrogen sulfide corrosion test device |
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| CN204439510U (en) * | 2015-01-30 | 2015-07-01 | 钢铁研究总院青岛海洋腐蚀研究所 | Detect the simulation test device of oil cargo tank upper deck steel corrosion resistance |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11183361A (en) * | 1997-12-22 | 1999-07-09 | Canon Inc | High temperature and high humidity test device, and heating and humidifying method thereof |
| WO2005100625A1 (en) * | 2004-04-14 | 2005-10-27 | Sumitomo Metal Industries, Ltd. | Steel product for cargo oil tank |
| CN202486030U (en) * | 2011-12-28 | 2012-10-10 | 钢铁研究总院 | Simulative corrosion tester for upper deck on oil cargo tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112378841A (en) * | 2020-12-15 | 2021-02-19 | 广东火炬检测有限公司 | Metal hydrogen sulfide corrosion test device |
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