CN103398919A - Device and method for indoor accelerated test of corrosion of polluted soil - Google Patents

Device and method for indoor accelerated test of corrosion of polluted soil Download PDF

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Publication number
CN103398919A
CN103398919A CN2013103497539A CN201310349753A CN103398919A CN 103398919 A CN103398919 A CN 103398919A CN 2013103497539 A CN2013103497539 A CN 2013103497539A CN 201310349753 A CN201310349753 A CN 201310349753A CN 103398919 A CN103398919 A CN 103398919A
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polluted soil
box
sheet metal
test
opening
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CN2013103497539A
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CN103398919B (en
Inventor
韩鹏举
何斌
王海杰
马富丽
白晓红
杜湧
李晨凯
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Taiyuan University of Technology
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Taiyuan University of Technology
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Abstract

The invention relates to the field of indoor corrosion tests of polluted oil, and particularly relates to a device and method for an indoor accelerated test of corrosion of polluted soil. The device comprises a heat and moisture insulation box made of an insulation corrosion-resistant material, wherein an inner cavity of the heat and moisture insulation box form a polluted soil container chamber with length of 25cm, width of 10cm and height of 10cm, three positive electrode boxes are uniformly arranged and supported at the front in the polluted soil container chamber side by side, negative electrode boxes, which are in one-one correspondence with the positive electrode boxes, are arranged at the back in the polluted soil container chamber, the distance between the negative electrode boxes and the positive electrode boxes in the polluted soil container chamber is 5cm, and the negative electrode boxes and the positive electrode boxes are the same in structures. A polluted soil site environment is simulated by virtue of an undisturbed soil sample. The device is novel in structure, ingenious in design, and convenient and rapid in operation. The method for the indoor accelerated test of corrosion of polluted soil, provided by the invention, is accurate in evaluation of corrosion of polluted soil, and is not limited by the shape of a metal product to be tested.

Description

The corrosive device and method of indoor accelerated test Polluted Soil
Technical field
The present invention relates to indoor pollution soil corrosion test field, specifically the corrosive device and method of a kind of indoor accelerated test Polluted Soil.
Background technology
Because seepage flow and the seepage of solid waste and waste water etc. are more and more serious, cause structure, function and the composition of surrounding soil that very large variation has occurred, form various types of Polluted Soils.The quantity of while along with oil tank, water pipe and the gas piping of digitizing Internet of Things Industrial Construction and provided underground constantly rises.In a single day corrosion and damage appears in the metallic article that is in the Polluted Soil environment, brings great loss will for the various aspects such as economy, life and industry.
Polluted Soil is at short notice to the corrosive research of contaminated soil to the accelerated corrosion test of metal.The indoor soil corrosion test of carrying out at present is mainly to adopt the electrolytic weight loss method, the electrolytic weight loss method is just simulated the corrosion behavior of metal-made pipeline in soil with pipe tank method, but the corrosion test field of pipe tank method is too little, for the corrosion of metallic article in soil of studying other shapes, lacks support.
Summary of the invention
The defect that the present invention exists in order to make up existing soil corrosion test, provide a kind of indoor accelerated test Polluted Soil corrosive device and method.
The present invention is achieved by the following technical solutions: the corrosive device of indoor accelerated test Polluted Soil, comprise the heat and moisture preserving case of being made by the insulation resistant material, the inner chamber of heat and moisture preserving case forms the Polluted Soil vessel of high 25 * 10 * 10cm of being of length and width, the inner the place ahead of Polluted Soil vessel is uniform side by side is supported with three anode electrode boxes, inner rear is provided with each anode electrode box distinguishes corresponding one by one cathode electrode box, distance in the Polluted Soil vessel between the yin, yang electrode box of correspondence is 5cm, and the structure of cathode and anode electrode box is identical; Described electrode box comprises the box body of high 4 * 1 * 4cm of being of length and width that is made by the insulation resistant material, a wherein middle part, side of box body has opening, the bottom surface of box body to the distance of Polluted Soil vessel bottom surface is 3cm, wherein the aperture area of cathode electrode box is greater than the opening of anode electrode box, the opening of cathode electrode box is relative with the opening of anode electrode box, and the aperture area of anode electrode box is at least 1cm 2, in the box body of cathode electrode box, be placed with auxiliary electrode, in the box body of anode electrode box, be placed with by the test sheet metal, auxiliary electrode and quilt test sheet metal are connected on the power supply that voltage is 6V by wire.
Insulation resistant material in the present invention adopts material known in this field to get final product.
In the present invention, the aperture area of cathode electrode box is greater than the opening of anode electrode box, can need to control the aperture area (being tested the contact area of sheet metal and Polluted Soil Duplicate Samples) of cathode and anode electrode box according to different experiments, this control method is with reference to pipe tank method.
In the present invention, defining distance between the yin, yang electrode box and the size of box body, is in order to prevent the generation of boundary effect.If the distance between the yin, yang electrode box and the size of box body are all too little, more easily produce boundary effect; If the distance between the yin, yang electrode box and the size of box body are all too large, can not guarantee that the Polluted Soil Duplicate Samples fully contacts with the yin, yang electrode, easily produce simultaneously the inconsistent corrosion difference that causes of Polluted Soil Duplicate Samples, cause corrosivity to be estimated inaccurate.
Limit the aperture area of anode electrode box, can guarantee that the Polluted Soil Duplicate Samples fully contacts with the yin, yang electrode.If the aperture area of anode electrode box is less than 1cm 2, make this opening more difficult.
Further, the opening left and right edges place of described box body mark has scale mark, and opening is provided with the movable push of being made by the insulation resistant material.Indicate the setting of scale mark and movable push, can control more accurately the working area (being tested the contact area of sheet metal and Polluted Soil Duplicate Samples) of box body.
Described box body be by by the they sup-port made of insulation resistant material in the heat and moisture preserving case.The installation of box body is convenient in the setting of support bar.
The corrosive method of indoor accelerated test Polluted Soil, realize in the corrosive device of described indoor accelerated test Polluted Soil, the steps include:
A. from scene, fetch the non-disturbance undisturbed of Polluted Soil, test its chemical analysis and resistivity thereof, estimate and determine its pollution type and grade;
B. from well cutting on tested metallic article, tested sheet metal, removed surface passivated membrane, weigh and record its weight m 0 , put into a wherein anode electrode box;
C. the non-disturbance undisturbed of Polluted Soil is cut into to the Polluted Soil Duplicate Samples, be positioned between the cathode and anode electrode box in the heat and moisture preserving case, the two ends that guarantee the Polluted Soil Duplicate Samples contact with auxiliary electrode with by the test sheet metal by opening respectively, and the Polluted Soil Duplicate Samples between every group of yin, yang electrode box does not contact, according to the temperature and humidity in field condition regulation and control heat and moisture preserving case;
D. switch on power, electrolysis time TAfter, deenergization;
E. take out by the test sheet metal, clean top impurity, dry the record of weighing m 1
F. according to formula V=(m 0 -m 1 )/(S * T)Calculate by the corrosion rate of test sheet metal,
In formula: VFor the corrosion rate by the test sheet metal, g/d * cm 2
m 0 For before electrolysis, being tested the weight of sheet metal, g;
m 1 For after electrolysis, being tested the weight of sheet metal, g;
SFor the contact area by test sheet metal and Polluted Soil Duplicate Samples, cm 2
TFor conduction time, d;
G. other treatment steps of being tested sheet metal, with B to F step, calculate by the mean value V of test sheet metal corrosion rate m, in order to estimate the corrosivity of this type Polluted Soil.
In the present invention in steps A test chemical analysis and resistivity determine Polluted Soil type and grade, estimate and determine its pollution type and grade.This evaluation and definite method are with reference to " Code for investigation of geotechnical engineering " (GB50021-2001, version in 2009).According to standard, when carrying out Polluted Soil to the monitoring of the corrosivity of building materials, at first the physical and chemical composition that needs to test Polluted Soil is studied the classification of Polluted Soil, resistivity has been reacted physics, chemistry and the electrical properties of Polluted Soil, and considering above-mentioned data has and comprehensively understand and an anticipation the corrosivity of Polluted Soil.
Removal surface passivated membrane in step B adopts the method for removal passivating film known in this field to get final product, for example polishing or pickling.
The device of the temperature and humidity in the regulation and control heat and moisture preserving case in step C is device known in this field.
In the present invention, in step G, adopt V mEstimate Polluted Soil corrosivity, this evaluation method is with reference to " Code for investigation of geotechnical engineering " (GB50021-2001, version in 2009).
The corrosive device of indoor accelerated test Polluted Soil of the present invention adopts non-disturbance undisturbed soil sample, simulated the Polluted Soil site environment, novel structure, be skillfully constructed, easy to operate, quick, adopt the corrosive method of indoor accelerated test Polluted Soil of the present invention, accurate to the corrosive evaluation of Polluted Soil, and the method is not subjected to the restriction of tested metallic article shape, has enlarged range of value.
The accompanying drawing explanation
Fig. 1 is the front view of the corrosive device of indoor accelerated test Polluted Soil of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the front view of cathode electrode box.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the front view of anode electrode box.
In figure: 1-heat and moisture preserving case, the 2-support bar, 3-Polluted Soil vessel, the 4-box body, 5,5a, 5b-opening, the 6-auxiliary electrode, 7-is tested sheet metal, 8-power supply, 9-movable push, 10-switch, h 1, h 2-distance.
Embodiment
The corrosive device of indoor accelerated test Polluted Soil, comprise the heat and moisture preserving case 1 of being made by the insulation resistant material, the inner chamber of heat and moisture preserving case 1 forms the Polluted Soil vessel 3 of high 25 * 10 * 10cm of being of length and width, the inner the place ahead of Polluted Soil vessel 3 is uniform side by side is supported with three anode electrode boxes, inner rear is provided with each anode electrode box distinguishes corresponding one by one cathode electrode box, the distance h between the yin, yang electrode box of Polluted Soil vessel 3 interior correspondences 1For 5cm, and the structure of cathode and anode electrode box is identical; Described electrode box comprises the box body 4 of high 4 * 1 * 4cm of being of length and width that is made by the insulation resistant material, and a wherein middle part, side of box body 4 has opening 5, and the bottom surface of box body 4 is to the distance h of Polluted Soil vessel 3 bottom surfaces 2For 3cm, wherein the opening 5a area of cathode electrode box is greater than the opening 5b of anode electrode box, and the opening 5a of cathode electrode box is relative with the opening 5b of anode electrode box, and the opening 5b area of anode electrode box is at least 1cm 2, in the box body 4 of cathode electrode box, be placed with auxiliary electrode 6, in the box body 4 of anode electrode box, be placed with by test sheet metal 7, auxiliary electrode 6 and quilt test sheet metal 7 are connected on the power supply 8 that voltage is 6V by wire.
The opening 5 left and right edges place marks of described box body 4 have scale mark, and opening 5 is provided with the movable push 9 of being made by the insulation resistant material.
Described box body 4 is to be supported in heat and moisture preserving case 1 by the support bar 2 of being made by the insulation resistant material.
Heat and moisture preserving case 1 is provided with the switch 10 that can disconnect and be connected power supply 8.
The corrosive method of indoor accelerated test Polluted Soil, realize in the corrosive device of described indoor accelerated test Polluted Soil, the steps include:
A. from scene, fetch the non-disturbance undisturbed of Polluted Soil, test its chemical analysis and resistivity thereof, estimate and determine its pollution type and grade;
B. from well cutting on tested metallic article, tested sheet metal 7, removed surface passivated membrane, weigh and record its weight m 0 , put into a wherein anode electrode box;
C. the non-disturbance undisturbed of Polluted Soil is cut into to the Polluted Soil Duplicate Samples, be positioned between the cathode and anode electrode box in heat and moisture preserving case 1, the two ends that guarantee the Polluted Soil Duplicate Samples contact with auxiliary electrode 6 with by test sheet metal 7 by opening 5 respectively, and the Polluted Soil Duplicate Samples between every group of yin, yang electrode box does not contact, according to the temperature and humidity in field condition regulation and control heat and moisture preserving case 1;
D. switch on power 8, electrolysis time TAfter, deenergization 8;
E. take out by test sheet metal 7, clean top impurity, dry the record of weighing m 1
F. according to formula V=(m 0 -m 1 )/(S * T)Calculate by the corrosion rate of test sheet metal 7,
In formula: VFor the corrosion rate by test sheet metal 7, g/d * cm 2
m 0 For before electrolysis, being tested the weight of sheet metal 7, g;
m 1 For after electrolysis, being tested the weight of sheet metal 7, g;
SFor the contact area by test sheet metal 7 and Polluted Soil Duplicate Samples, cm 2
TFor conduction time, d;
G. other treatment steps of being tested sheet metal 7, with B to F step, calculate by the mean value V of test sheet metal 7 corrosion rates m, in order to estimate the corrosivity of this type Polluted Soil.

Claims (5)

1. the corrosive device of indoor accelerated test Polluted Soil, it is characterized in that, comprise the heat and moisture preserving case (1) of being made by the insulation resistant material, the inner chamber of heat and moisture preserving case (1) forms the Polluted Soil vessel (3) of high 25 * 10 * 10cm of being of length and width, the inner the place ahead of Polluted Soil vessel (3) is uniform side by side is supported with three anode electrode boxes, inner rear is provided with each anode electrode box distinguishes corresponding one by one cathode electrode box, the distance (h in Polluted Soil vessel (3) between the yin, yang electrode box of correspondence 1) be 5cm, and the structure of cathode and anode electrode box is identical; Described electrode box comprises the box body (4) of high 4 * 1 * 4cm of being of length and width that is made by the insulation resistant material, and a wherein middle part, side of box body (4) has opening (5), and the bottom surface of box body (4) is to the distance (h of Polluted Soil vessel (3) bottom surface 2) be 3cm, wherein the opening of cathode electrode box (5a) area is greater than the opening (5b) of anode electrode box, and the opening of cathode electrode box (5a) is relative with the opening (5b) of anode electrode box, and the opening of anode electrode box (5b) area is at least 1cm 2In the box body of cathode electrode box (4), be placed with auxiliary electrode (6), in the box body of anode electrode box (4), be placed with by test sheet metal (7), auxiliary electrode (6) and quilt test sheet metal (7) are connected on the power supply that voltage is 6V (8) by wire.
2. the corrosive device of indoor accelerated test Polluted Soil according to claim 1, it is characterized in that, opening (5) the left and right edges place mark of described box body (4) has scale mark, and opening (5) is provided with the movable push (9) of being made by the insulation resistant material.
3. the corrosive device of indoor accelerated test Polluted Soil according to claim 2, is characterized in that, described box body (4) is to be supported in heat and moisture preserving case (1) by the support bar (2) of being made by the insulation resistant material.
4. the corrosive device of indoor accelerated test Polluted Soil according to claim 3, is characterized in that, heat and moisture preserving case (1) is provided with and can disconnects and the switch that is connected power supply (8) (10).
5. the corrosive method of indoor accelerated test Polluted Soil, in the corrosive device of indoor accelerated test Polluted Soil as claimed in claim 4, realize, it is characterized in that, the steps include: that A. fetches the non-disturbance undisturbed of Polluted Soil from scene, test its chemical analysis and resistivity thereof, estimate and determine its pollution type and grade;
B. from well cutting on tested metallic article, tested sheet metal (7), removed surface passivated membrane, weigh and record its weight m 0 , put into a wherein anode electrode box;
C. the non-disturbance undisturbed of Polluted Soil is cut into to the Polluted Soil Duplicate Samples, be positioned between the cathode and anode electrode box in heat and moisture preserving case (1), the two ends that guarantee the Polluted Soil Duplicate Samples contact with auxiliary electrode (6) with by test sheet metal (7) by opening (5) respectively, and the Polluted Soil Duplicate Samples between every group of yin, yang electrode box does not contact, according to the temperature and humidity in field condition regulation and control heat and moisture preserving casees (1);
D. switch on power (8), electrolysis time TAfter, deenergization (8);
E. take out by test sheet metal (7), clean top impurity, dry the record of weighing m 1
F. according to formula V=(m 0 -m 1 )/(S * T)Calculate by the corrosion rate of test sheet metal (7),
In formula: VFor the corrosion rate by test sheet metal (7), g/d * cm 2
m 0 For before electrolysis, being tested the weight of sheet metal (7), g;
m 1 For after electrolysis, being tested the weight of sheet metal (7), g;
SFor the contact area by test sheet metal (7) and Polluted Soil Duplicate Samples, cm 2
TFor conduction time, d;
G. other treatment steps of being tested sheet metal (7), with B to F step, calculate by the mean value V of test sheet metal (7) corrosion rate m, in order to estimate the corrosivity of this type Polluted Soil.
CN201310349753.9A 2013-08-13 2013-08-13 Method for indoor accelerated test of corrosion of polluted soil Expired - Fee Related CN103398919B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106066297A (en) * 2016-05-31 2016-11-02 中国科学院武汉岩土力学研究所 A kind of indoor soil body electric osmose test hydrogen generating quantity measurement apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS566139A (en) * 1979-06-27 1981-01-22 Nisshin Steel Co Ltd Method and device for testing soil corrosion of metal
JPS60231154A (en) * 1984-04-28 1985-11-16 Fujitsu Ltd Measurement of metal corrosion
CN201096707Y (en) * 2007-11-01 2008-08-06 北京科技大学 Soil erosion simulation acceleration testing box
CN101782491A (en) * 2009-01-21 2010-07-21 中国科学院金属研究所 Method for predicting soil corrosion rate of metal material
CN201653876U (en) * 2010-04-20 2010-11-24 浙江工业大学 Indoor soil corrosion simulator
CN202216892U (en) * 2011-08-31 2012-05-09 天津市电力公司 Device for simulating accelerated corrosion of power material in the presence of multiple mediums
CN202748300U (en) * 2012-08-27 2013-02-20 中国科学院金属研究所 Accelerated corrosion test device for nonferrous metal soil
CN202837152U (en) * 2012-11-09 2013-03-27 安徽省电力科学研究院 Corrosion test device for galvanic couple in soil medium

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS566139A (en) * 1979-06-27 1981-01-22 Nisshin Steel Co Ltd Method and device for testing soil corrosion of metal
JPS60231154A (en) * 1984-04-28 1985-11-16 Fujitsu Ltd Measurement of metal corrosion
CN201096707Y (en) * 2007-11-01 2008-08-06 北京科技大学 Soil erosion simulation acceleration testing box
CN101782491A (en) * 2009-01-21 2010-07-21 中国科学院金属研究所 Method for predicting soil corrosion rate of metal material
CN201653876U (en) * 2010-04-20 2010-11-24 浙江工业大学 Indoor soil corrosion simulator
CN202216892U (en) * 2011-08-31 2012-05-09 天津市电力公司 Device for simulating accelerated corrosion of power material in the presence of multiple mediums
CN202748300U (en) * 2012-08-27 2013-02-20 中国科学院金属研究所 Accelerated corrosion test device for nonferrous metal soil
CN202837152U (en) * 2012-11-09 2013-03-27 安徽省电力科学研究院 Corrosion test device for galvanic couple in soil medium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
杜鹤: "Q235碳钢在大港土壤中电解及电偶加速腐蚀试验研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》, 15 July 2008 (2008-07-15), pages 022 - 20 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106066297A (en) * 2016-05-31 2016-11-02 中国科学院武汉岩土力学研究所 A kind of indoor soil body electric osmose test hydrogen generating quantity measurement apparatus
CN106066297B (en) * 2016-05-31 2018-10-12 中铁第四勘察设计院集团有限公司 A kind of interior soil body electric osmose experiment hydrogen generating quantity measuring device

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