CN101565086A - Method for designing wave capsule for ballast tank coating test and testing device - Google Patents
Method for designing wave capsule for ballast tank coating test and testing device Download PDFInfo
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- CN101565086A CN101565086A CN 200810049623 CN200810049623A CN101565086A CN 101565086 A CN101565086 A CN 101565086A CN 200810049623 CN200810049623 CN 200810049623 CN 200810049623 A CN200810049623 A CN 200810049623A CN 101565086 A CN101565086 A CN 101565086A
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Abstract
The invention discloses a method for designing a wave capsule for a ballast tank coating test and a testing device. The testing device consists of four separate and single testing chambers arranged in parallel, four testing templates are evenly placed in each separate testing chamber, analogue tests which can re-create various environment conditions of the ballast tank protective coating can be carried out in a true, all-wave and three-dimensional way, and various environment conditions of the ballast tank protective coating can be re-created in a truth, all-wave and three-dimensional way. The invention can realize that practical application environment conditions of the ballast tank protective coating can be simulated in the testing chambers,and is convenient for researching, detecting and evaluating corrosion-resistant performance and environment adaptive capacity of the ballast tank coating test so as to provide a dynamic and scientific acceleration method for quality prediction, evaluation, coating qualification certificate, and the like of seawater ballast tank protective coating specially for shipping.
Description
Technical field
The invention belongs to the test setup technical field, is a kind of a kind of wave cabin method of designing and experimental set-up that is used for the ballast tank coating test of simulating the special-purpose seawater ballast tank protective coat of boats and ships true environment situation.
Background technology
It is reported to have only on Det Norske Veritas (DNV) and the Sea of Japan two families of technical security research institute to have similar ballast tank specialized simulation at present in the world and quicken the wave laboratory module.What each bulkhead temperature controlling in the rough-water test cabin of Norway in 2006 and Japan adopted all is water-circulating temperature control systems, and what swing system adopted is the eccentric mechanical system of driven by motor.The ballast tank specialized simulation that in November, 2007 Det Norske Veritas (DNV) recent design is built quickens the wave laboratory module, design after it improves is: the wing tank of simulation next top, deck suffers 12 hours the circulation pattern of 12 hours/20 ℃ coolings of the 50 ℃ of heating in top, ballast tank analogue test cabin of the situation that the sun tans by the sun He day alternates with night to adopt ultrared radiation modality, what the temperature control of sidewall and seawater was adopted is the water-circulating temperature control system, and what swing system adopted is the cylinder way of propelling.But the temperature at laboratory module top control open type adopts by infrared radiation and does not shine conversion regime and carries out, though simulation temperature controlled homogeneity more directly perceived and vivid and precision can be too not high.
Summary of the invention
For addressing the above problem; the invention provides a kind of wave cabin method of designing and experimental set-up that is used for the ballast tank coating test; this experimental set-up by side by side 4 separately independently the single test cabin form; all place 4 test pieces in each open water test cabin, the analogue test under the residing various environmental conditionss of reproduction ballast tank protective coat that can be real, omnibearing, three-dimensional.
For achieving the above object, the present invention adopts following technical scheme:
The described wave cabin method of designing that is used for the ballast tank coating test comprises following content:
I, the servo push-pull system of employing cylinder are simulated jolting and waving of ship, can realize the periodic banking motion of laboratory module, to be whole box body around bottom centre have a down dip on the horizontal cross shaft mode of motion along its length waves, motion frequency was at least 3 seconds, motion amplitude be at least 0～20 ° adjustable, cause cabin maritime interior waters wave motion, guarantee to be placed in the laboratory module before and after and the sample at top periodically splash arrive seawater;
Real conditions in II, the simulation ballast tank, laboratory module is filled the seawater of 1/3 volume, spacer water box heat test cabin, laboratory module bottom maritime interior waters temperature, sea temperature remains on 35 ± 2 ℃; Constitute by slim PP material water box and an outside constant temperature water tank, shoot the external heat water source and the spacer heat test cabin maritime interior waters that circulates by the programming automatically controlled water pump in the test, seawater/7 sky cabins circulation in 14 days in the test with one at the bottom of the laboratory module;
III, programming water temperature regulation and control system, the wing tank of simulation next top, deck suffers the situation that the sun tans by the sun He day alternates with night, this top refrigeration (heat) assembly is by constituting for be respectively 20 ℃ and 50 ℃ of constant temperature water tanks with the slim PP material water box of laboratory module top cover one and outside two water temperatures, respectively two thermostatted waters are sent into PP water box and circulation by the programming automatically controlled water pump in the test, reaching the laboratory module top is 12 hours circulation pattern of 12 hours/20 ± 2 ℃ coolings of 50 ± 2 ℃ of heating;
IV, employing programming water temperature regulation and control system, the cooling bulkhead of a ballast tank wing tank of simulation; Side cooling assembly design is by for being that 15 ℃ constant temperature water tank constitutes with the slim PP material water box of a vertical bulkhead one of laboratory module and water temperature, by the programming automatically controlled water pump thermostatted water is sent into PP water box and circulation in the test, a vertical bulkhead that reaches laboratory module is a back-cooled, and the control temperature is 15 ± 2 ℃;
Another vertical bulkhead in V, ballast tank test wave cabin is designed to neither heat also do not cool off;
VI, for the effect of the cathode protection of assessing the ballast tank coating, ballast tank test wave cabin internal fixation zinc sacrificial anode makes it be connected with a sample in the bilge placement during test;
VII, employing computing machine master control unit, main console desk of ballast tank test wave cabin design, a very color LCDs test routine controller is installed on the main console desk, process of the test and all test parameters are all by the programming automatic guidance, all controlled variable and acquired signal all concentrate on touch-screen control, and the immediate status of all test parameters in the process of the test and historical data can be consulted and printout at any time;
VIII, ballast tank outer wall adopt stainless steel material, and inwall adopts the PP material; Pipeline, thermostatted water circulating box adopt the PVC material.
The described wave cabin experimental set-up that is used for the ballast tank coating test is made up of main console desk, sway test cabin, temperature control system three parts, and read-out test routine controller wherein is installed on the main console desk, is responsible for controlled variable, acquired signal, consults and print; The sway test cabin is made up of four independent cabins, each Cabin Design is the loam cake open-type, four test pieces are laid in design in each cabin, the water gauge that water level in the display module is all arranged outside each cabin, the temperature of test bulkhead is controlled by temperature-controlling system by water circulation system in each cabin, by the temperature sensor that is placed in each test bulkhead signal is delivered to main console desk, show that by read-out test routine controller controlled variable and acquired signal reach test requirements document, four cabins are online by waving cylinder, wave sensor, start sensor, limit switch is controlled jolting and waving of sway test cabin, and whole cabin body is around bottom centre along its length on the horizontal cross shaft, have a down dip and wave, motion frequency was at least 3 seconds, motion amplitude be at least 0～20 ° adjustable; Temperature control system is made up of sea water tank, 15 ℃ of water tanks, 50 ℃ of water tanks, 35 ℃ of water tanks, 20 ℃ of water tanks, cooling unit and corresponding temperature control assemblies, and the temperature control assembly is controlled each water tank; Each cabin connects by each water tank switching of water inlet pipe and water outlet pipe and temperature control system.
Because adopt aforesaid technical scheme, the present invention has following preceence:
One, the residing various environmental conditionss of reproduction ballast tank protective coat that the present invention can be real, omnibearing, three-dimensional; can be implemented in the actual application environment condition of simulation ballast tank protective coat in the laboratory module; conveniently be used to study, detect and estimate the decay resistance and the environmental adaptability of ballast tank protective coat, the accelerated method of a dynamic science is provided for the prediction of quality of the special-purpose seawater ballast tank protective coat of boats and ships, evaluation, coating Qualification Approval etc.
Two, each bulkhead of laboratory module of the present invention is in the test condition that has nothing in common with each other respectively, adopt separately independently temperature control and circulating system in the design, select the composite design of temperature control water circulation system and ballast tank test wave cabin structure, be characterized in: the identical bulkhead temperature control precision height (± 2 ℃) in each cabin, good uniformity.
Three, adopt the servo push-pull system of cylinder to realize waving and jolting of wave cabin, compare other mechanical system swing systems, have light and handy, the advantages such as noise is low, maintenance is simple, long service life of cabin, rough-water test cabin body.
Four, adopt the computing machine master control unit, make the operational factor and the history data store in ballast tank situation analogue test cabin and consult the automation of realization programming Control.
Five, the present invention has significant novelty, not only fills the domestic gaps and reaches the leading level in the world.
Description of drawings
Fig. 1 is a method of designing principle schematic of the present invention;
Fig. 2 is an experimental set-up scheme drawing of the present invention;
Among the above-mentioned figure: the 1-model; The 2-loam cake; The 3-sea water tank; 4-15 ℃ of water tank; 5-50 ℃ of water tank; The 6-water inlet pipe and water outlet pipe; 7-35 ℃ of water tank; 8-20 ℃ of water tank; 9-2 cools off unit; 10-waves sensor; The 11-start sensor; 12-waves cylinder; The 13-limit switch; 14-sway test cabin; The 15-water gauge; The 16-main console desk; 17-read-out test routine controller.
The specific embodiment
Found out by Fig. 1,2: the wave cabin experimental set-up that is used for the ballast tank coating test of the present invention is made up of main console desk 16, sway test cabin 14, temperature control system three parts, one 10.4 cun very color LCDs test routine controllers 17 wherein are installed on the main console desk, be responsible for process of the test and all test parameters all by the programming automatic guidance, all controlled variable and acquired signal all concentrate on touch-screen control, and the immediate status of all test parameters in the process of the test and historical data can be consulted and printout at any time; Sway test cabin 14 is divided into four independent cabins, each Cabin Design is loam cake 2 open-types, four test pieces 1 are laid in design in each cabin, the water gauge 15 that water level in the display module is all arranged outside each cabin, the temperature of test bulkhead is controlled by temperature-controlling system by water circulation system in each cabin, by the temperature sensor that is placed in each test bulkhead signal is delivered to main console desk, show that by read-out test routine controller 17 test routine and acquired signal reach test requirements document, four cabins are online by waving cylinder 12, wave sensor 10, start sensor 11, limit switch 13 is controlled jolting and waving of sway test cabins 14, and whole cabin body is around bottom centre along its length on the horizontal cross shaft, have a down dip and wave, motion frequency was at least 3 seconds, motion amplitude be at least 0～20 ° adjustable; Temperature control system is made up of 7,20 ℃ of water tanks 9 of 5,35 ℃ of water tanks of 4,50 ℃ of water tanks of 3,15 ℃ of water tanks of sea water tank, cooling unit 8 and corresponding temperature control assembly, and the temperature control assembly is controlled each water tank; Each cabin connects by each water tank switching of water inlet pipe and water outlet pipe 6 and temperature control system.
When designing, the present invention considers some:
1, ballast tank situation analogue test cabin structure and how much
Be designed to 4 cabin on-line compositions, promptly complete machine can be carried out 4 kinds of ballast tank coating model tests simultaneously, and the single test cabin is of a size of 450 * 450 * 250mm.
The cabin body is by 8mm Germany import PP plate moulding welding fabrication, and external packets corrosion-resistant steel square tube and panel are beneficial to the fastness and the globality of casing; Loam cake will adopt silaatic foam sponge bar and increase a waterproof bar with the sealing of cabin body, and seawater spills during anti-shaking.
Four laboratory module on-line compositions of stainless steel rectangular pipe support framework for carrying, integral body is fixed in ground with setscrew, and good rigidity is arranged, and two ends guarantee the axis of rocking right alignment and have good stability that framework has the corrosion protection ability.
Head motion is connected to the cylinder Y head of bottom for a connecting rod being installed waving on the case one end center shaft, has the Magnetic Induction switch rice of installing on the phase cylinder to regulate and waves angle, and the rear portion has the SMC cylinder of Japan to be used as power to drag casing waves.
2, outside temperature control system
The water tank of outside temperature control system has four, each water tank inner storing water volume is about 70 liters, water tank is German PP board making, top is openable, four water tanks temperature control respectively are 15 ℃, 20 ℃, 35 ℃, 50 ℃, its structure is a monolithic devices, promptly freeze the warm-up control water tank all in a structure, assemblies such as cooling copper tube coil and temperature booster and level controller are arranged in water tank, refrigerating unit is at the water tank rear portion, and each water tank disposes the magnetically-actuated water pump of a lift 35m flow 18L/min.Whole four water tanks are controlled all communications and are entered an integrated control housing, the temperature of water tank is by computing machine master control unit programming automatic guidance in total operation cabinet, by systems programming automatically controlled water pump and electromagnetic valve the thermostatted water of each water tank is directly infeeded in the body PP water box of cabin during test and circulate, reach the requirement that control temperature and temperature are switched.
3, complete machine principal parameter:
Physical dimension: 2000 * 1300 * 800mm
Single wave cabin: 450 * 450 * 250 4 cabin multi packs, four of test plate (panel)s are installed in every cabin
Test plate (panel): 400 * 200 * 3
Waving angle: ± 5～20 ° adjustable
Shake the cycle: 3.3～1.0 seconds adjustable
Cylinder: SMC is with decompression valve, compression indicator and Magnetic Induction switch
Transmission device: connecting rod
Constant temperature system: outer tank cold (heat) assembly.The assembly type of cooling: air-cooled
Temperature control point: 50 ℃/12 hours---20 ℃/12 hours, 15 ℃, 35 ℃
Temperature control precision: ± 2 ℃
Temperature control mode: programming Control
Test method: shook 7 days static tests altogether 180 days in 14 days continuously
This experimental set-up is fully simulated the following environmental conditions in the practical application of ballast tank of ship protective coat:
1. simulate jolting and waving of boats and ships, cause cabin maritime interior waters wave motion, form the bold and vigorous low-priced seawater of each wall in the cabin periodically;
2. the real conditions of ballast and unloading seawater in the simulation ballast tank;
3. the wing tank of simulation next top, deck suffers the temperature difference situation that the sun tans by the sun He day alternates with night;
4. simulate the cooling bulkhead of a ballast tank wing tank;
5. simulate the common bulkhead of ballast tank;
6. assess the effect of the anti-cathode protection of ballast tank coating.
Present invention can be implemented in the actual application environment condition of simulation ballast tank protective coat in the laboratory module; conveniently be used to study, detect and estimate the decay resistance and the environmental adaptability of ballast tank protective coat, the accelerated method of a dynamic science is provided for the prediction of quality of the special-purpose seawater ballast tank protective coat of boats and ships, evaluation, coating Qualification Approval etc.
Claims (2)
1, a kind of described wave cabin method of designing that is used for the ballast tank coating test, it is characterized in that: this wave cabin method of designing comprises following content:
I, the servo push-pull system of employing cylinder are simulated jolting and waving of ship, can realize the periodic banking motion of laboratory module, to be whole box body around bottom centre have a down dip on the horizontal cross shaft mode of motion along its length waves, motion frequency was at least 3 seconds, motion amplitude be at least 0～20 ° adjustable, cause cabin maritime interior waters wave motion, guarantee to be placed in the laboratory module before and after and the sample at top periodically splash arrive seawater;
Real conditions in II, the simulation ballast tank, laboratory module is filled the seawater of 1/3 volume, spacer water box heat test cabin, laboratory module bottom maritime interior waters temperature, sea temperature remains on 35 ± 2 ℃; Constitute by slim PP material water box and an outside constant temperature water tank, shoot the external heat water source and the spacer heat test cabin maritime interior waters that circulates by the programming automatically controlled water pump in the test, seawater/7 sky cabins circulation in 14 days in the test with one at the bottom of the laboratory module;
III, programming water temperature regulation and control system, the wing tank of simulation next top, deck suffers the situation that the sun tans by the sun He day alternates with night, this top refrigeration (heat) assembly is by constituting for be respectively 20 ℃ and 50 ℃ of constant temperature water tanks with the slim PP material water box of laboratory module top cover one and outside two water temperatures, respectively two thermostatted waters are sent into PP water box and circulation by the programming automatically controlled water pump in the test, reaching the laboratory module top is 12 hours circulation pattern of 12 hours/20 ± 2 ℃ coolings of 50 ± 2 ℃ of heating;
IV, employing programming water temperature regulation and control system, the cooling bulkhead of a ballast tank wing tank of simulation; Side cooling assembly design is by for being that 15 ℃ constant temperature water tank constitutes with the slim PP material water box of a vertical bulkhead one of laboratory module and water temperature, by the programming automatically controlled water pump thermostatted water is sent into PP water box and circulation in the test, a vertical bulkhead that reaches laboratory module is a back-cooled, and the control temperature is 15 ± 2 ℃;
Another vertical bulkhead in V, ballast tank test wave cabin is designed to neither heat also do not cool off;
VI, for the effect of the cathode protection of assessing the ballast tank coating, ballast tank test wave cabin internal fixation zinc sacrificial anode makes it be connected with a sample in the bilge placement during test;
VII, employing computing machine master control unit, main console desk of ballast tank test wave cabin design, a very color LCDs test routine controller is installed on the main console desk, process of the test and all test parameters are all by the programming automatic guidance, all controlled variable and acquired signal all concentrate on touch-screen control, and the immediate status of all test parameters in the process of the test and historical data can be consulted and printout at any time;
VIII, ballast tank outer wall adopt stainless steel material, and inwall adopts the PP material; Pipeline, thermostatted water circulating box adopt the PVC material.
2, a kind of wave cabin experimental set-up that is used for the ballast tank coating test, it is characterized in that: this wave cabin experimental set-up is made up of main console desk, sway test cabin, temperature control system three parts, read-out test routine controller wherein is installed on the main console desk, is responsible for controlled variable, acquired signal, consults and print; The sway test cabin is made up of four independent cabins, each Cabin Design is the loam cake open-type, four test pieces are laid in design in each cabin, the water gauge that water level in the display module is all arranged outside each cabin, the temperature of test bulkhead is controlled by temperature-controlling system by water circulation system in each cabin, by the temperature sensor that is placed in each test bulkhead signal is delivered to main console desk, show that by read-out test routine controller controlled variable and acquired signal reach test requirements document, four cabins are online by waving cylinder, wave sensor, start sensor, limit switch is controlled jolting and waving of sway test cabin, and whole cabin body is around bottom centre along its length on the horizontal cross shaft, have a down dip and wave, motion frequency was at least 3 seconds, motion amplitude be at least 0～20 ° adjustable; Temperature control system is made up of sea water tank, 15 ℃ of water tanks, 50 ℃ of water tanks, 35 ℃ of water tanks, 20 ℃ of water tanks, cooling unit and corresponding temperature control assemblies, and the temperature control assembly is controlled each water tank; Each cabin connects by each water tank switching of water inlet pipe and water outlet pipe and temperature control system.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383339A (en) * | 2013-06-26 | 2013-11-06 | 中国船舶重工集团公司第七二五研究所 | Air-tight test apparatus for coating of cargo oil tank of crude oil tanker |
| CN107449726A (en) * | 2017-07-19 | 2017-12-08 | 上海市计量测试技术研究院 | Metal protection test instrument and its application method |
| CN113978662A (en) * | 2021-10-22 | 2022-01-28 | 大连海事大学 | Dynamic adjusting and stirring experimental device for ballast water of full-circle slewing crane ship |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1500813A1 (en) * | 1987-07-06 | 1989-08-15 | Ленинградский Научно-Исследовательский И Проектный Институт По Жилищно-Гражданскому Строительству "Ленниипроект" | Method of producing ice cover in trial basin |
| SU1552039A1 (en) * | 1988-06-24 | 1990-03-23 | Московский гидромелиоративный институт | Wave suppressor of experimental basin |
| RU2165370C2 (en) * | 1999-06-07 | 2001-04-20 | Центральный научно-исследовательский институт им. акад. А.Н. Крылова | Method of reproduction of irregular waves in experimental basin |
| CN1544285A (en) * | 2003-11-13 | 2004-11-10 | 上海交通大学 | Dynamic positioning model test system |
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- 2008-04-25 CN CN2008100496232A patent/CN101565086B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383339A (en) * | 2013-06-26 | 2013-11-06 | 中国船舶重工集团公司第七二五研究所 | Air-tight test apparatus for coating of cargo oil tank of crude oil tanker |
| CN103383339B (en) * | 2013-06-26 | 2015-10-21 | 中国船舶重工集团公司第七二五研究所 | A kind of crude oil tanker oil cargo tank coating air tightness tester |
| CN107449726A (en) * | 2017-07-19 | 2017-12-08 | 上海市计量测试技术研究院 | Metal protection test instrument and its application method |
| CN107449726B (en) * | 2017-07-19 | 2023-04-14 | 上海市计量测试技术研究院 | Metal corrosion tester and application method thereof |
| CN113978662A (en) * | 2021-10-22 | 2022-01-28 | 大连海事大学 | Dynamic adjusting and stirring experimental device for ballast water of full-circle slewing crane ship |
| CN113978662B (en) * | 2021-10-22 | 2024-05-07 | 大连海事大学 | Experimental device for dynamically transferring ballast water of full-rotation crane ship |
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