CN211856305U - Damp-heat and current corrosion coupling effect test simulation device - Google Patents
Damp-heat and current corrosion coupling effect test simulation device Download PDFInfo
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- CN211856305U CN211856305U CN202020589912.8U CN202020589912U CN211856305U CN 211856305 U CN211856305 U CN 211856305U CN 202020589912 U CN202020589912 U CN 202020589912U CN 211856305 U CN211856305 U CN 211856305U
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Abstract
The utility model discloses a wet heat, electric current corrosion coupling effect test analogue means. The device at least comprises an external protection box body, an electrified corrosion system, a circulating water supply system, a circulating heating system and a control system; the using method firstly manufactures corresponding test pieces according to the requirements of the test scheme. The utility model can reduce the risk of electric shock of the testing personnel and the contact between the volatile corrosive liquid and the testing personnel by using the external protection box body; the circulating water supply system can control the pH value in the electrified pond and the stability of the concentration of related ions by adjusting the flow of the corrosive solution; the circulating heating system can keep the air in the external protective box body at a constant temperature; the control system has the functions of heating air and automatically controlling the addition of corrosive solution, and can record the current and voltage change values of the component. Therefore, the labor intensity can be greatly reduced, and the device is suitable for multi-factor long-time simulation environmental tests in laboratory environments.
Description
Technical Field
The utility model relates to a civil engineering technical field especially relates to a damp and hot, experimental analogue means of galvanic corrosion coupling.
Background
In recent years, steel structures and composite structures have been widely used in engineering practice. The acid rain corrosion due to environmental pollution and the seawater corrosion suffered by coastal areas put high demands on the durability of steel structures and composite structures. At present, most of domestic corrosion tests aiming at a steel structure or a steel pipe concrete structure under the condition of power-on corrosion are in a non-automatic mode, and the influence of damp and heat is not considered. Therefore, it is necessary to develop a multifactor automatic simulation test device for the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect of prior art, the technical purpose of the utility model is to solve at present that the internal corrosivity test to steel construction or steel pipe concrete structure under the galvanic corrosion is in mostly not having the automatic mode, and does not consider the problem of damp and hot influence.
In order to achieve the technical purpose, the utility model provides a damp-heat and electric current corrosion coupling effect test simulation device, which at least comprises an external protection box body, an electrified corrosion system, a circulating water supply system, a circulating heating system and a control system;
the electrified corrosion system at least comprises a digital display direct-current stabilized power supply and a stainless steel ring, wherein the positive electrode and the negative electrode of the digital display direct-current stabilized power supply are respectively connected with the test piece and the stainless steel ring;
the circulating water supply system at least comprises an anti-corrosion plastic basin, a corrosive solution tank, a Y-shaped filter, a valve, a magnetic drive circulating pump, a flowmeter, a water pipeline, a corrosive solution, a pH value tester and a backflow prevention check valve;
the control system at least comprises a temperature and PH value controller and a programmable controller.
Preferably, the circulation heating system at least comprises an anti-corrosion axial flow fan, a heater and an air duct.
Preferably, the external protection box body is made of an organic glass plate.
The utility model has the advantages that:
due to the structural design, the utility model can reduce the risk of electric shock of the testing personnel and the contact between the volatile corrosive liquid and the testing personnel by using the external protective box body; the circulating water supply system can control the pH value in the electrified pond and the stability of the concentration of related ions by adjusting the flow of the corrosive solution; the circulating heating system can keep the air in the external protective box body at a constant temperature; the control system can automatically control air heating and corrosive solution adding, and can record the current and voltage change values of the component. Thereby greatly reducing the labor intensity and being suitable for multi-factor long-time simulation environmental tests in the laboratory environment.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
FIG. 2 is a schematic structural diagram of a medium-voltage electric corrosion system according to the present invention;
FIG. 3 is a schematic structural view of the middle circulation water supply system of the present invention;
fig. 4 is a schematic structural diagram of the middle circulation heating system of the present invention.
In the figure: the device comprises an external protection box body 1, a digital display direct-current stabilized power supply 2, a test piece 3, a stainless steel ring 4, an anticorrosive plastic basin 5, a corrosive solution tank 6, a Y-shaped filter 7, a valve 8, a magnetic drive circulating pump 9, a flowmeter 10, a water pipeline 11, a corrosive solution 12, a pH value tester 13, a backflow prevention check valve 14, an anticorrosive axial flow fan 15, a heater 16, an air duct 17, a temperature display instrument 18 and a pH value display instrument 19, a support 19 and a cushion block 20.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Example (b):
as shown in fig. 1-4, a damp-heat and electric current corrosion coupling effect test simulation device at least comprises an external protection box body 1, an electrified corrosion system, a circulating water supply system, a circulating heating system and a control system;
the electrified corrosion system at least comprises a digital display direct-current stabilized power supply 2 and a stainless steel ring 4, when electrified, the anode of the digital display direct-current stabilized power supply 2 is connected with a test piece 3, and the cathode of the digital display direct-current stabilized power supply 2 is connected with the stainless steel ring 4;
the circulating water supply system at least comprises an anticorrosive plastic basin 5, a corrosive solution tank 6, a Y-shaped filter 7, a valve 8, a magnetic drive circulating pump 9, a flowmeter 10, a water pipeline 11, a corrosive solution 12, a pH value tester 13 and a backflow prevention check valve 14;
the circulating heating system at least comprises an anti-corrosion axial flow fan 15, a heater 16 and an air duct 17, wherein the anti-corrosion axial flow fan 15 can prevent the corrosive solution 12 from damaging the machine; the heater 16 heats air, so that the constant temperature in the external protection box body 1 is guaranteed in the test process; the air duct 17 ensures the free circulation of air in the external protection box body 1;
the control system at least comprises a temperature and PH value controller 18 and a programmable controller, the temperature and PH value controller 18 can control the circulating time and flow of the circulating water supply system and can also control the temperature in the external protection box body 1; the programmable controller can set different working times, working time, intermittent time and other factors according to different conditions.
Specifically, the external protection box body 1 is made of an organic glass plate.
Specifically, the bottom of the anticorrosive plastic basin 5 of the corrosive solution tank 6 is respectively provided with a support 19, the support 19 is poured by fine aggregate concrete, and the support 19 is paved with anticorrosive antiskid floor tiles.
A use method of a damp-heat and current corrosion coupling effect test simulation device is characterized in that: the method comprises the following steps:
s1, after the test is started, firstly manufacturing a corresponding test piece 3 according to the requirements of the test scheme and maintaining the test piece under the standard condition;
s2, placing the test piece into an anticorrosive plastic basin 5 in the external protection box body 1, connecting the test piece 3 with the positive electrode of the digital display DC stabilized voltage power supply 2, connecting the stainless steel ring 4 with the negative electrode of the digital display DC stabilized voltage power supply 2, and closing the external protection box body 1 after the preparation work is finished;
s3, according to the design of a PH value or a concentration value of required ions in the test scheme, configuring a corresponding corrosive solution 12, putting the corrosive solution 12 into a corrosive solution tank 6 of a circulating water supply system, injecting clear water into an anticorrosive plastic basin 5, opening a valve 8, operating the circulating water supply system, driving the circulating water supply system through a magnetic drive circulating pump 9, filtering the corrosive solution through a Y-shaped filter 7, enabling the corrosive solution 12 to enter the rightmost side of the anticorrosive plastic basin 5 through a water pipeline 11 and a flowmeter 10, then quickly and uniformly diffusing the corrosive solution 12 to the whole basin to enable the PH value or the concentration of the relevant ions of the anticorrosive plastic basin 5 to reach the design value, and enabling the uniformly mixed corrosive solution 12 to flow into the corrosive solution tank 6 through an anti-backflow check valve 14 so as to form water circulation;
s4, turning on the circulating heating system, rapidly heating air by the heater 16, and providing wind power by the anticorrosive axial flow fan 15 through the air duct 17 to enable the temperature in the external protection box body 1 to reach the test design temperature;
and S5, setting the working times, the intermittent time and the single working time of the circulating water supply system through the control system, adding the corrosive solution 12 required by the next operation of the circulating water supply system into the corrosive solution tank 6 after the setting is finished, finally switching on the power supply of the electrified corrosion system, and setting the current and the voltage required by the test through the digital display direct current stabilized voltage power supply 2.
Specifically, when the test piece is a steel structural member, the member should be ground smooth in step S1.
To sum up, the utility model discloses can study in damp and hot, the influence problem to steel construction or 3 mechanical properties of steel pipe concrete test piece under the circular telegram corrodes the coupling effect. The control system is accurate and efficient, so that a tester does not need to wait beside a test, and the human resources are greatly saved; the test electrifying corrosion process is placed in the external protection box body 1, so that the risk of electric shock of a tester can be reduced, and the contact between the volatile corrosive solution 12 and the tester can be reduced; the test materials of the power-on corrosion system, the circulating water supply system and the circulating heating system are all anti-corrosion materials, so that the recycling property of the materials is improved, and the safety and stability of the test are finally guaranteed.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (3)
1. The utility model provides a damp and hot, experimental analogue means of galvanic corrosion coupling which characterized in that: the device at least comprises an external protection box body (1), an electrified corrosion system, a circulating water supply system, a circulating heating system and a control system;
the power-on corrosion system at least comprises a digital display direct-current stabilized power supply (2) and a stainless steel ring (4), wherein the positive electrode and the negative electrode of the digital display direct-current stabilized power supply (2) are respectively connected with the test piece (3) and the stainless steel ring (4);
the circulating water supply system at least comprises an anticorrosive plastic basin (5), a corrosive solution tank (6), a Y-shaped filter (7), a valve (8), a magnetic drive circulating pump (9), a flowmeter (10), a water pipeline (11), a corrosive solution (12), a PH value tester (13) and a backflow prevention check valve (14);
the control system at least comprises a temperature and pH value controller (18) and a programmable controller.
2. The damp-heat and electric-current corrosion coupling effect test simulation device according to claim 1, wherein: the circulating heating system at least comprises an anti-corrosion axial flow fan (15), a heater (16) and an air duct (17).
3. The damp-heat and electric-current corrosion coupling effect test simulation device according to claim 1, wherein: the external protection box body (1) is made of an organic glass plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020589912.8U CN211856305U (en) | 2020-04-20 | 2020-04-20 | Damp-heat and current corrosion coupling effect test simulation device |
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| CN202020589912.8U CN211856305U (en) | 2020-04-20 | 2020-04-20 | Damp-heat and current corrosion coupling effect test simulation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533183A (en) * | 2021-07-15 | 2021-10-22 | 南宁师范大学 | Corrosion detection device and detection method for inorganic cementing material in flowing karst water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533183A (en) * | 2021-07-15 | 2021-10-22 | 南宁师范大学 | Corrosion detection device and detection method for inorganic cementing material in flowing karst water |
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