CN104697921A - Experimental system for simulating steel plate corrosion environment of crude oil tanker oil cabin - Google Patents

Experimental system for simulating steel plate corrosion environment of crude oil tanker oil cabin Download PDF

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Publication number
CN104697921A
CN104697921A CN201510154124.XA CN201510154124A CN104697921A CN 104697921 A CN104697921 A CN 104697921A CN 201510154124 A CN201510154124 A CN 201510154124A CN 104697921 A CN104697921 A CN 104697921A
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China
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crude oil
water
upper cover
module
bath
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CN201510154124.XA
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CN104697921B (en
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王东胜
郭娜
刘涛
董耀华
朱孟星
周桐
董丽华
尹衍升
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Shanghai Maritime University
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Shanghai Maritime University
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Abstract

The invention provides an experimental system for simulating a steel plate corrosion environment of a crude oil tanker oil cabin. The experimental system for simulating the steel plate corrosion environment of the crude oil tanker oil cabin comprises a crude oil cabin corrosion experiment tank, a lacing film module, a tank body water bath module, an upper cover water bath module, a temperature control module, a swing module, an aeration module, a measuring module and a control module. The crude oil cabin corrosion experiment tank is filled with crude oil. The lacing film module is installed in the crude oil cabin corrosion experiment tank. The upper cover water bath module covers the crude oil cabin corrosion experiment tank. The temperature control module is connected with the tank body water bath module and the upper cover water bath module. The swing module is connected with the tank body water bath module and drives the tank body water bath module to swing. The aeration module is connected with the crude oil cabin corrosion experiment tank, mixes different kinds of gas and inputs the gas mixture into the crude oil cabin corrosion experiment tank. The measuring module is arranged in the crude oil cabin corrosion experiment tank and measures the temperature, the humidity and the pressure in the simulation process. The control module is connected with the tank body water bath module, the upper cover water bath module, the temperature control module and the measuring module controls the modules to start or stop. The experimental system can really simulate the corrosion environment, involving the comprehensive factors such as the temperature, the humidity and waves, where steel plates of crude oil tanker oil cabin are located in the transportation process.

Description

A kind of experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment
Technical field
The present invention relates to a kind of experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment, specifically refer to a kind of for Simulation of Crude Oil ships that transport in navigation process, to the simulation accelerated test system of oily vapour corrosion environment residing for the cabin body steel plate being positioned at crude oil tank diverse location; And for boats and ships simulation accelerated test system to vapour corrosion environment residing for the body steel plate of diverse location cabin in ballast tank of ship in navigation process.
Background technology
The world today, oil is the energy pillar of social development, and the marine transportation of crude oil is most important to Petroleum Industry.In recent years, the major events such as the crude oil leakage caused because oil tanker corrodes occur again and again, while causing tremendous economic to lose, serious pollution be also result in the marine eco-environment, so the attention degree that is subject to of the etching problem of oil ship goods tank also strengthens day by day.According to statistics, the annual requirement of China's oil tanker steel is not less than 2,000,000 tons, therefore to the corrosion environment of oil ship goods tank steel plate and the research of corrosion mechanism, to the corrosion regularity of research oil ship goods tank steel plate be extremely important and in the urgent need to.
The corrosion environment relative complex of crude oil carrier oil cargo tank, the top, cabin of oil cargo tank is in two kinds of different corrosion environments with the bilge, cabin push up residing for is O 2-CO 2-SO 2-H 2the uniform corrosion environment of S humidity corrosion, and be highly acid Cl residing for the bilge and crude oil contact portion --solution corrosion pitting environments.The corrosion of oil cargo tank is along with day and night temperature change is being loaded and occurred in unloaded cyclic process, crude oil carrier can wave along with wave in navigation process simultaneously, in crude oil tank, crude oil and greasy filth also can produce movement, and the coupling of many factors can bring synergistic effect to the corrosion of the bulkhead of crude oil carrier oil cargo tank.Therefore, carry out Simulation of Crude Oil ship when transporting that the oil cargo tank in navigation process waves at day and night temperature change, multiple etchant gas, wave, crude oil and greasy filth is when the multiple corrosion environment compound such as to move, and has important meaning to the research that the bulkhead of oil cargo tank carries out analog monitoring at the corrosion environment of diverse location.
Summary of the invention
The object of this invention is to provide a kind of experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment, the cabin body steel plate of real simulation crude oil carrier oil cargo tank can ride the sea and be subject to the corrosion environment of the composite factors such as temperature, gas, wave in transportation.
For achieving the above object, the invention provides a kind of experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment, it comprises: crude oil tank corrosion test chamber, its inner injection crude oil, the oil cargo tank internal operating environment of Simulation of Crude Oil ship; Lacing film module, it is arranged on the inside of described crude oil tank corrosion test chamber, the cabin body steel plate in Simulation of Crude Oil shipload cargo tank; Casing water-bath module, described crude oil tank corrosion test chamber is arranged in this casing water-bath module, the external corrosion environments of this casing water-bath module simulation crude oil carrier cabin body steel plate of oil cargo tank in navigation transportation; Upper cover water-bath module, it covers the top of described crude oil tank corrosion test chamber, and Simulation of Crude Oil ship is navigating by water the temperature variation environment that in transportation, the upper cover steel plate of oil cargo tank produces along with day-night change; Temperature control module, it is connected with upper cover water-bath module with described casing water-bath module respectively, arranges and simulates the temperature of Various Seasonal, different waters, different time; Swing module, it is connected with described casing water-bath module, drives the crude oil tank corrosion test chamber of this casing water-bath module and inside thereof to wave, Simulation of Crude Oil shipload cargo tank ride the sea to run into that wave produces in process wave sea situation; Aeration module, it is connected with described crude oil tank corrosion test chamber, by input crude oil tank corrosion test chamber after multiple gas with various mixing, the gaseous environment of Simulation of Crude Oil shipload cargo tank in navigation transportation; Measurement module, it is arranged on the inside of described crude oil tank corrosion test chamber, temperature, humidity and pressure in measure analog process in former cargo tank corrosion test chamber; Control module, it is connected with described casing water-bath module, upper cover water-bath module, temperature control module, measurement module respectively, for controlling the start and stop of above-mentioned module.
Described casing water-bath module comprises: water bath, and described crude oil tank corrosion test chamber is arranged in this water bath, and is connected with it by flange, and junction adopts rubber seal rings for seal; First water circulation mechanism, comprises: the first circulating water channel formed by arranging interval between water bath and crude oil tank corrosion test chamber; Be arranged on described water bath sidewall top and the casing water inlet be communicated with the first circulating water channel, be arranged on described water bath sidewall bottom and the casing water delivering orifice be communicated with the first circulating water channel, by the first flexible pipe that flange is connected with casing water delivering orifice with described casing water inlet respectively, and the first ebullator be arranged on the first described flexible pipe, by passing into recirculated water to realize casing water circulation; Valve is respectively arranged with at described casing water inlet and casing water outlet.
Described upper cover water-bath module comprises: upper cover, and it covers the top being arranged on described crude oil tank corrosion test chamber, and is connected with it by flange; Second water circulation mechanism, comprises: be arranged on the second circulating water channel in described upper cover; Be arranged on described upper cover one end and the upper cover water inlet be communicated with the second circulating water channel, be arranged on the described upper cover other end and the upper cover water delivering orifice be communicated with the second circulating water channel, by the second flexible pipe that flange is connected with upper cover water delivering orifice with described upper cover water inlet respectively, and the second ebullator be arranged on the second described flexible pipe, by passing into recirculated water to realize upper cover water circulation; Valve is respectively arranged with at described upper cover water inlet and upper cover water outlet.
Cover the view window being provided with Flange joint on described, rubber gasket sealing is set between view window and flange.
Described temperature control module comprises: heating rod, and it is connected with the second flexible pipe with the first described flexible pipe respectively, for heating the bath temperature in the first water circulation mechanism and the second water circulation mechanism; First temperature sensor, it is fixedly installed on the first circulating water channel in water bath by flange, for measuring the bath temperature in water bath; Second temperature sensor, it is fixedly installed on the second circulating water channel in upper cover by flange, for measuring the bath temperature in upper cover; Temp controlled meter, it is connected with described heating rod, for setting heating-up temperature and switching on and off of controlling that heating rod powers.
Described lacing film module comprises: some film hangerses, and one end is fixedly installed in the lower surface of described upper cover by film hangers installing plate, and the other end is fixedly installed on the bottom interior surface of the corrosion simulated case of described crude oil tank by film hangers installing plate; Some sides lacing film, it is separately positioned on described film hangers; Some tops lacing film, it is separately positioned on the bottom outer surface of described upper cover; Some bottoms lacing film, it is separately positioned on the bottom interior surface of the corrosion simulated case of described crude oil tank; Between described side lacing film and film hangers, between top lacing film and the bottom outer surface of upper cover, between bottom lacing film and the bottom interior surface of the corrosion simulated case of crude oil tank, be provided with lacing film insulcrete.
Described swing module comprises: wave supporting mechanism, and it, for supporting described water bath, comprises: base; Be separately positioned on the bearing seat of water bath both sides, be fixedly installed on described base bottom it; Be separately positioned on the swinging shaft base at midline position place, water bath two ends, each swinging shaft base is connected with corresponding bearing seat respectively by back shaft; Swinging drive mechanism, it swings for driving described water bath, comprises: motor; The reducer casing be connected with motor; The crank be connected with the output shaft of reducer casing; The connecting rod that one end is connected with crank by bearing pin, the other end of described connecting rod is connected with water bath by stationary shaft; The output shaft of reducer casing often rotates a circle, its corrosion simulated case of crude oil tank driving water bath by crank and connecting rod and be positioned at its inside completes along swinging shaft base the circulation that an axis waves, and runs into the sea situation under wave situations with Simulation of Crude Oil in ship's navigation process; The amplitude of fluctuation of described water bath is between-30 ° ~+30 °, and wobble frequency is between 0 ~ 10HZ.
Described aeration module comprises: some gas bombs, is respectively used to place oxygen, carbon dioxide, sulphuric dioxide and hydrogen sulfide gas; Dynamic gas mixer, it is connected with each gas bomb respectively, and the flow adjusting each gas bomb according to set inlet condition carries out dynamic air-distributing; Air intake opening, its be arranged on described on cover, be connected by the 3rd flexible pipe with dynamic gas mixer, the mixed gas after distribution passed in the corrosion simulated case of crude oil tank, to simulate the corrosion environment under gas with various, different pressures.
Described measurement module comprises: some thermometers, is arranged in the corrosion simulated chamber of described crude oil tank, and lays respectively at the bottom of the corrosion simulated chamber of crude oil tank, middle part and top, for measuring the temperature at each diverse location place in case; Hygrometer, is arranged in the corrosion simulated chamber of described crude oil tank, and is positioned on the bottom outer surface of described upper cover, for measuring the gas humidity near upper cover region place in case; Tensimeter, is arranged in the corrosion simulated chamber of described crude oil tank, and is positioned on the bottom outer surface of described upper cover, for measuring the force value of gas in case.
Described control module is connected with the first ebullator, the second ebullator, motor respectively, is respectively used to startup and the stopping of control first ebullator and the second ebullator, controls the startup of motor, stopping and rotating speed; Described control module is also connected with the first temperature sensor, the second temperature sensor, thermometer, hygrometer and tensimeter respectively by sensor interface, for recording and bath temperature in display simulation process in water bath and upper cover, and temperature, air pressure and the humidity in the corrosion simulated chamber of crude oil tank.
In sum, the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment provided by the present invention, can the corrosion environment that rides the sea in transportation of the cabin body steel plate of real simulation crude oil carrier oil cargo tank, comprise day and night temperature change, the change of ship's navigation marine site, the fluctuation of ship's navigation wave, climate change, oil cargo tank Crude Oil and greasy filth moves, various gaseous environments etc. in carried of crude oil process, to build the corrosion environment of the composite factors such as Yin Wendu, gas, wave.
Accompanying drawing explanation
Fig. 1 is the structural representation of the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment in the present invention;
Fig. 2 is the structural representation of the water bath in the present invention.
Embodiment
Below in conjunction with Fig. 1 and Fig. 2, describe a preferred embodiment of the present invention in detail.
As shown in Figure 1, be the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment provided by the present invention, it comprises: crude oil tank corrosion test chamber 6, and its inner injection crude oil 24, for the oil cargo tank internal operating environment of Simulation of Crude Oil ship; Lacing film module, it is arranged on the inside of described crude oil tank corrosion test chamber 6, for the cabin body steel plate in Simulation of Crude Oil shipload cargo tank; Casing water-bath module, described crude oil tank corrosion test chamber 6 is arranged in this casing water-bath module, and this casing water-bath module is used for the external corrosion environments of Simulation of Crude Oil ship cabin body steel plate of oil cargo tank in navigation transportation; Upper cover water-bath module, it covers the top of described crude oil tank corrosion test chamber 6, the temperature variation environment that the upper cover steel plate for Simulation of Crude Oil ship oil cargo tank in navigation transportation produces along with day-night change; Temperature control module, it is connected with upper cover water-bath module with described casing water-bath module respectively, for arranging and simulating the temperature of Various Seasonal, different waters, different time; Swing module, it is connected with described casing water-bath module, drives the crude oil tank corrosion test chamber 6 of this casing water-bath module and inside thereof to wave, for Simulation of Crude Oil shipload cargo tank ride the sea to run into that wave produces in process wave sea situation; Aeration module, it is connected with described crude oil tank corrosion test chamber 6, by input crude oil tank corrosion test chamber 6 after multiple gas with various mixing, for the gaseous environment of Simulation of Crude Oil shipload cargo tank in navigation transportation; Measurement module, it is arranged on the inside of described crude oil tank corrosion test chamber 6, for temperature, humidity and pressure in cargo tank corrosion test chamber 6 former in measure analog process; Control module, it is connected with described casing water-bath module, upper cover water-bath module, temperature control module, measurement module respectively, for controlling the start and stop of above-mentioned module.
Described casing water-bath module comprises: water bath 5, and described crude oil tank corrosion test chamber 6 is arranged in this water bath 5, and is connected with it by flange, and junction adopts rubber seal rings for seal; First water circulation mechanism, comprises: the first circulating water channel formed by arranging interval between water bath 5 and crude oil tank corrosion test chamber 6; Be arranged on described water bath 5 sidewall top and the casing water inlet 15 be communicated with the first circulating water channel, be arranged on described water bath 5 sidewall bottom and the casing water delivering orifice 13 be communicated with the first circulating water channel, by the first flexible pipe that flange is connected with casing water delivering orifice 13 with described casing water inlet 15 respectively, and the first ebullator be arranged on the first described flexible pipe, by passing into recirculated water 22 to realize casing water circulation.In the present embodiment, described water bath 5 adopts 20mm ship plate to process, and the surrounding sidewall of water bath 5 is also provided with some reinforcements to strengthen the casing intensity of water bath 5.
Also valve is respectively arranged with at described casing water inlet 15 and casing water delivering orifice 13 place.
Described upper cover water-bath module comprises: upper cover 11, and it covers the top being arranged on described crude oil tank corrosion test chamber 6, and is connected with it by flange; Second water circulation mechanism, comprises: be arranged on the second circulating water channel in described upper cover 11; Be arranged on described upper cover 11 one end and the upper cover water inlet 7 be communicated with the second circulating water channel, be arranged on described upper cover 11 other end and the upper cover water delivering orifice 12 be communicated with the second circulating water channel, by the second flexible pipe that flange is connected with upper cover water delivering orifice 12 with described upper cover water inlet 7 respectively, and the second ebullator be arranged on the second described flexible pipe, by passing into recirculated water to realize upper cover water circulation.In the present embodiment, described upper cover 11 adopts 20mm ship plate to process, and the surrounding sidewall of upper cover 11 is also provided with some reinforcements to strengthen the intensity of upper cover 11.
Described upper cover 11 is also provided with the view window 10 of Flange joint, rubber gasket is set between view window 10 and flange and seals, to ensure the sealing property of upper cover 11.Described upper cover 11 is also provided with waterproof, illuminating lamp, so that situation is carried out in the test observed in crude oil tank corrosion test chamber 6.
Also valve is respectively arranged with at described upper cover water inlet 7 and upper cover water delivering orifice 12 place.
As depicted in figs. 1 and 2, described temperature control module comprises: heating rod, and it is connected with the second flexible pipe with the first described flexible pipe respectively, for heating the bath temperature in the first water circulation mechanism and the second water circulation mechanism; First temperature sensor 31, it is fixedly installed on the first circulating water channel in water bath 5 by flange, for measuring the bath temperature in water bath 5; Second temperature sensor 32, it is fixedly installed on the second circulating water channel in upper cover 11 by flange, for measuring the bath temperature in upper cover 11; Temp controlled meter, it is connected with described heating rod, for setting heating-up temperature and switching on and off of controlling that heating rod powers.In the present embodiment, by temp controlled meter, heating-up temperature is arranged between 0 ~ 80 degree.
As shown in Figure 2, described lacing film module comprises: some film hangerses 19, one end is fixedly installed in the lower surface of described upper cover 11 by film hangers installing plate 16, and the other end is fixedly installed on the bottom interior surface of the corrosion simulated case 6 of described crude oil tank by film hangers installing plate 16; Some sides lacing film 20, it is separately positioned on described film hangers 19; Some tops lacing film 25, it is separately positioned on the bottom outer surface of described upper cover 11; Some bottoms lacing film 21, it is separately positioned on the bottom interior surface of the corrosion simulated case 6 of described crude oil tank.
Further, between described side lacing film 20 and film hangers 19, between top lacing film 25 and the bottom outer surface of upper cover 11, between bottom lacing film 21 and the bottom interior surface of the corrosion simulated case 6 of crude oil tank, be provided with the lacing film insulcrete 17 be made up of polytetrafluoroethylmaterial material.
Described swing module comprises: wave supporting mechanism, and it, for supporting described water bath 5, comprises: base 30; Be separately positioned on the bearing seat 3 of water bath 5 both sides, be fixedly installed on described base 30 bottom it; Be separately positioned on the swinging shaft base 18 at midline position place, water bath 5 two ends, each swinging shaft base 18 is connected with corresponding bearing seat 3 respectively by back shaft 14; Swinging drive mechanism 4, it swings for driving described water bath 5, comprises: motor 1; The reducer casing 2 be connected with motor 1; The crank be connected with the output shaft of reducer casing 2; The connecting rod 23 that one end is connected with crank by bearing pin 26, the other end of described connecting rod 23 is connected with water bath 5 by stationary shaft 28.The output shaft of reducer casing 2 often rotates a circle, its corrosion simulated case 6 of crude oil tank driving water bath 5 by crank and connecting rod 23 and be positioned at its inside completes along swinging shaft base 18 circulation that an axis waves, and runs into the sea situation under wave situations with Simulation of Crude Oil in ship's navigation process.In the present embodiment, the length of described connecting rod 23 can regulate, and makes the amplitude of fluctuation of described water bath 5 between-30 ° ~+30 °; Described motor 1 adopts power to be the variable-frequency motor of 5 ~ 12KW, regulates the rotating speed of motor 1 output shaft, make the wobble frequency of described water bath 5 between 0 ~ 10HZ by frequency converter; Described reducer casing 2 adopts epicyclic reduction gear of planetary type, and reduction gear ratio is 200 ~ 300.
As shown in Figure 1, described aeration module comprises: some gas bombs 36, is respectively used to place the gases such as oxygen, carbon dioxide, sulphuric dioxide and sulfuretted hydrogen; Dynamic gas mixer 37, it is connected with each gas bomb 36 respectively, and the flow adjusting each gas bomb 36 according to set inlet condition carries out dynamic air-distributing; Air intake opening 8, it is arranged on described upper cover 11, is connected by the 3rd flexible pipe with dynamic gas mixer 37, is passed into by the mixed gas after distribution in the corrosion simulated case 6 of crude oil tank, to simulate the corrosion environment under gas with various, different pressures.
As shown in Figure 2, described measurement module comprises: some thermometers 33, be arranged in the corrosion simulated chamber 6 of described crude oil tank, and lay respectively at the bottom of the corrosion simulated chamber 6 of crude oil tank, middle part and top, for measuring the temperature at each diverse location place in case; Hygrometer 34, is arranged in the corrosion simulated chamber 6 of described crude oil tank, and is positioned on the bottom outer surface of described upper cover 11, for measuring the gas humidity near upper cover 11 region place in case; Tensimeter 35, is arranged in the corrosion simulated chamber 6 of described crude oil tank, and is positioned on the bottom outer surface of described upper cover 11, for measuring the force value of gas in case.
Described control module is connected with the first ebullator, the second ebullator, motor 1 respectively, is respectively used to startup and the stopping of control first ebullator and the second ebullator, controls the startup of motor 1, stopping and rotating speed; Described control module is also connected with the first temperature sensor 31, second temperature sensor 32, thermometer 33, hygrometer 34 and tensimeter 35 respectively by sensor interface 29, for recording and bath temperature in display simulation process in water bath 5 and upper cover 11, and temperature, air pressure and the humidity in the corrosion simulated chamber 6 of crude oil tank.
The experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment provided by the present invention, when carrying out corrosion test, first getting out the lacing film required for testing, switching on power, guarantee system worked well.Then the view window 10 be arranged on upper cover 11 is opened, enter the inside of crude oil tank corrosion test chamber 6, between fixed seat at bottom film hangers 19 being fixedly mounted on upper cover 11 and the corrosion simulated case 6 of crude oil tank, again side lacing film 20 is passed through lacing film insulcrete 17 insulating mounting on film hangers 19, top lacing film 25 and bottom lacing film 21 are arranged on the bottom with the corrosion simulated case 6 of crude oil tank bottom upper cover 11 respectively by lacing film insulcrete 17 simultaneously, complete rear enclosed view window 10.The bath temperature of water bath 5 and upper cover 11 is set respectively by temp controlled meter, open the valve at upper cover water inlet 7 and upper cover water delivering orifice 12 place, run the second ebullator, realize the water-bath circulation in upper cover 11, and open the valve at casing water inlet 15 and casing water delivering orifice 13 place, run the first ebullator, realize the water-bath circulation in water bath 5.According to the inlet condition of setting, the flow utilizing dynamic gas mixer 37 to adjust each gas bomb 36 carries out dynamic air-distributing, opens the valve at air intake opening 8 place, in the corrosion simulated case 6 of crude oil tank, pass into the mixed gas after distribution.By control module starter motor 1, and adjust rotating speed, make the corrosion simulated case 6 of crude oil tank open periodical wobble pattern.And in whole corrosion test process, the information such as the test temperature utilizing control module record to be recorded by test module, humidity, pressure and time.Finally according to the corrosion condition of each diverse location lacing film, the parameters recorded in binding tests process, the corrosion environment that the cabin body steel plate accurately studying crude oil carrier oil cargo tank can bear and its serviceable life, accomplish to change to avoid more crude oil leakage event occurs in time.
In sum, the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment provided by the present invention, can the corrosion environment that rides the sea in transportation of the cabin body steel plate of real simulation crude oil carrier oil cargo tank, comprise day and night temperature change, the change of ship's navigation marine site, the fluctuation of ship's navigation wave, climate change, oil cargo tank Crude Oil and greasy filth moves, various gaseous environments etc. in carried of crude oil process, to build the corrosion environment of the composite factors such as Yin Wendu, gas, wave.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (10)

1. an experimental system for Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment, is characterized in that, comprise:
Crude oil tank corrosion test chamber (6), its inner injection crude oil (24), the oil cargo tank internal operating environment of Simulation of Crude Oil ship;
Lacing film module, it is arranged on the inside of described crude oil tank corrosion test chamber (6), the cabin body steel plate in Simulation of Crude Oil shipload cargo tank;
Casing water-bath module, described crude oil tank corrosion test chamber (6) is arranged in this casing water-bath module, the external corrosion environments of this casing water-bath module simulation crude oil carrier cabin body steel plate of oil cargo tank in navigation transportation;
Upper cover water-bath module, it covers the top of described crude oil tank corrosion test chamber (6), and Simulation of Crude Oil ship is navigating by water the temperature variation environment that in transportation, the upper cover steel plate of oil cargo tank produces along with day-night change;
Temperature control module, it is connected with upper cover water-bath module with described casing water-bath module respectively, arranges and simulates the temperature of Various Seasonal, different waters, different time;
Swing module, it is connected with described casing water-bath module, drives the crude oil tank corrosion test chamber (6) of this casing water-bath module and inside thereof to wave, Simulation of Crude Oil shipload cargo tank ride the sea to run into that wave produces in process wave sea situation;
Aeration module, it is connected with described crude oil tank corrosion test chamber (6), by input crude oil tank corrosion test chamber (6) after multiple gas with various mixing, the gaseous environment of Simulation of Crude Oil shipload cargo tank in navigation transportation;
Measurement module, it is arranged on the inside of described crude oil tank corrosion test chamber (6), temperature, humidity and pressure in measure analog process in former cargo tank corrosion test chamber (6);
Control module, it is connected with described casing water-bath module, upper cover water-bath module, temperature control module, measurement module respectively, for controlling the start and stop of above-mentioned module.
2. the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment as claimed in claim 1, it is characterized in that, described casing water-bath module comprises:
Water bath (5), described crude oil tank corrosion test chamber (6) is arranged in this water bath (5), and is connected with it by flange, and junction adopts rubber seal rings for seal;
First water circulation mechanism, comprises: the first circulating water channel formed by arranging interval between water bath (5) and crude oil tank corrosion test chamber (6); Be arranged on described water bath (5) sidewall top and the casing water inlet (15) be communicated with the first circulating water channel, be arranged on described water bath (5) sidewall bottom and the casing water delivering orifice (13) be communicated with the first circulating water channel, by the first flexible pipe that flange is connected with casing water delivering orifice (13) with described casing water inlet (15) respectively, and the first ebullator be arranged on the first described flexible pipe, by passing into recirculated water (22) to realize casing water circulation;
Wherein, valve is respectively arranged with at described casing water inlet (15) and casing water delivering orifice (13) place.
3. the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment as claimed in claim 2, it is characterized in that, described upper cover water-bath module comprises:
Upper cover (11), it covers the top being arranged on described crude oil tank corrosion test chamber (6), and is connected with it by flange;
Second water circulation mechanism, comprises: be arranged on the second circulating water channel in described upper cover (11); Be arranged on described upper cover (11) one end and the upper cover water inlet (7) be communicated with the second circulating water channel, be arranged on described upper cover (11) other end and the upper cover water delivering orifice (12) be communicated with the second circulating water channel, by the second flexible pipe that flange is connected with upper cover water delivering orifice (12) with described upper cover water inlet (7) respectively, and the second ebullator be arranged on the second described flexible pipe, by passing into recirculated water to realize upper cover water circulation;
Wherein, valve is respectively arranged with at described upper cover water inlet (7) and upper cover water delivering orifice (12) place.
4. the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment as claimed in claim 3, it is characterized in that, described upper cover (11) is provided with the view window (10) of Flange joint, rubber gasket is set between view window (10) and flange and seals.
5. the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment as claimed in claim 4, it is characterized in that, described temperature control module comprises:
Heating rod, it is connected with the second flexible pipe with the first described flexible pipe respectively, for heating the bath temperature in the first water circulation mechanism and the second water circulation mechanism;
First temperature sensor (31), it is fixedly installed on the first circulating water channel in water bath (5) by flange, for measuring the bath temperature in water bath (5);
Second temperature sensor (32), it is fixedly installed on the second circulating water channel in upper cover (11) by flange, for measuring the bath temperature in upper cover (11);
Temp controlled meter, it is connected with described heating rod, for setting heating-up temperature and switching on and off of controlling that heating rod powers.
6. the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment as claimed in claim 5, it is characterized in that, described lacing film module comprises:
Some film hangerses (19), one end is fixedly installed in the lower surface of described upper cover (11) by film hangers installing plate (16), and the other end is fixedly installed on the bottom interior surface of the corrosion simulated case of described crude oil tank (6) by film hangers installing plate (16);
Some sides lacing film (20), it is separately positioned on described film hangers (19);
Some tops lacing film (25), it is separately positioned on the bottom outer surface of described upper cover (11);
Some bottoms lacing film (21), it is separately positioned on the bottom interior surface of the corrosion simulated case of described crude oil tank (6);
Wherein, between described side lacing film (20) and film hangers (19), between top lacing film (25) and the bottom outer surface of upper cover (11), between bottom lacing film (21) and the bottom interior surface of the corrosion simulated case of crude oil tank (6), be provided with lacing film insulcrete (17).
7. the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment as claimed in claim 6, it is characterized in that, described swing module comprises:
Wave supporting mechanism, it, for supporting described water bath (5), comprises: base (30); Be separately positioned on the bearing seat (3) of water bath (5) both sides, be fixedly installed on described base (30) bottom it; Be separately positioned on the swinging shaft base (18) at midline position place, water bath (5) two ends, each swinging shaft base (18) is connected with corresponding bearing seat (3) respectively by back shaft (14);
Swinging drive mechanism (4), it swings for driving described water bath (5), comprises: motor (1); The reducer casing (2) be connected with motor (1); The crank be connected with the output shaft of reducer casing (2); The connecting rod (23) that one end is connected with crank by bearing pin (26), the other end of described connecting rod (23) is connected with water bath (5) by stationary shaft (28);
Wherein, the output shaft of described reducer casing (2) often rotates a circle, its corrosion simulated case of crude oil tank (6) driving water bath (5) by crank and connecting rod (23) and be positioned at its inside completes along swinging shaft base (18) circulation that an axis waves, and Simulation of Crude Oil runs into the sea situation under wave situations in ship's navigation process;
The amplitude of fluctuation of described water bath (5) is between-30 ° ~+30 °, and wobble frequency is between 0 ~ 10HZ.
8. the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment as claimed in claim 7, it is characterized in that, described aeration module comprises:
Some gas bombs (36), are respectively used to place oxygen, carbon dioxide, sulphuric dioxide and hydrogen sulfide gas;
Dynamic gas mixer (37), it is connected with each gas bomb (36) respectively, and the flow adjusting each gas bomb (36) according to set inlet condition carries out dynamic air-distributing;
Air intake opening (8), it is arranged on described upper cover (11), is connected by the 3rd flexible pipe with dynamic gas mixer (37), is passed into by the mixed gas after distribution in the corrosion simulated case of crude oil tank (6), the corrosion environment under simulation gas with various, different pressures.
9. the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment as claimed in claim 8, it is characterized in that, described measurement module comprises:
Some thermometers (33), are arranged in the corrosion simulated chamber of described crude oil tank (6), and lay respectively at the bottom of the corrosion simulated chamber of crude oil tank (6), middle part and top, measure the temperature at each diverse location place in case;
Hygrometer (34), is arranged in the corrosion simulated chamber of described crude oil tank (6), and is positioned on the bottom outer surface of described upper cover (11), measures the gas humidity near upper cover (11) region place in case;
Tensimeter (35), is arranged in the corrosion simulated chamber of described crude oil tank (6), and is positioned on the bottom outer surface of described upper cover (11), measures the force value of gas in case.
10. the experimental system of Simulation of Crude Oil shipload cargo tank body steel plate corrosion environment as claimed in claim 9, it is characterized in that, described control module is connected with the first ebullator, the second ebullator, motor (1) respectively, control startup and the stopping of the first ebullator and the second ebullator respectively, control the startup of motor (1), stopping and rotating speed;
Described control module is also connected with the first temperature sensor (31), the second temperature sensor (32), thermometer (33), hygrometer (34) and tensimeter (35) respectively by sensor interface (29), record bath temperature in display simulation process in water bath (5) and upper cover (11), and temperature, air pressure and the humidity in the corrosion simulated chamber of crude oil tank (6).
CN201510154124.XA 2015-04-02 2015-04-02 Experimental system for simulating steel plate corrosion environment of crude oil tanker oil cabin Expired - Fee Related CN104697921B (en)

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