CN215297085U - Erosion test equipment of piping lane prefab - Google Patents
Erosion test equipment of piping lane prefab Download PDFInfo
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- CN215297085U CN215297085U CN202120516889.4U CN202120516889U CN215297085U CN 215297085 U CN215297085 U CN 215297085U CN 202120516889 U CN202120516889 U CN 202120516889U CN 215297085 U CN215297085 U CN 215297085U
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Abstract
The utility model provides an erosion test equipment of piping lane prefab, including test section of thick bamboo, titanium net section of thick bamboo, piping lane prefab core appearance and power, titanium net section of thick bamboo has been placed to the middle-end in the test section of thick bamboo inside, and the bore of titanium net section of thick bamboo is less than the bore of test section of thick bamboo, piping lane prefab core appearance is placed in the inside of titanium net section of thick bamboo, the inside of test section of thick bamboo is equipped with the erosion solution, the inside of piping lane prefab core appearance is equipped with the installation cavity; the utility model discloses a place piping lane prefab core appearance in a titanium net section of thick bamboo, utilize positive pole, second wire, upper end titanium stick, titanium line, lower extreme titanium stick, a titanium net section of thick bamboo, first wire, negative pole and power constitute the circuit path to the erosion condition of experimental stray current to piping lane prefab core appearance is through placing piping lane prefab core appearance and a titanium net section of thick bamboo in the erosion solution, makes the erosion solution see through a titanium net section of thick bamboo contact piping lane prefab core appearance, thereby experimental sulphate, the erosion condition of chlorine salt to piping lane prefab core appearance.
Description
Technical Field
The utility model relates to a piping lane prefab technical field especially relates to an erosion test equipment of piping lane prefab.
Background
The utility tunnel is an underground city pipeline utility tunnel, namely a tunnel space is built underground in a city, and various engineering pipelines such as electric power, communication, gas, heat supply, water supply and drainage and the like are integrated; sulfate corrosion is one of the most extensive chemical corrosion forms of products, which can cause the expansion deformation of concrete and the reduction of mechanical properties such as strength, rigidity and the like, obviously reduce the bearing capacity of the structure, reduce the safety of the structure and bring huge loss to national economy, so that sulfate corrosion becomes a key point in the research of the durability of the reinforced concrete structure;
because the reinforced concrete structure actually built in the sulfate environment is mainly corroded and destroyed by sulfate, but is also influenced by other various durability deterioration factors, for example, the main concrete structure of the underground comprehensive pipe gallery engineering is often in a stratum with abundant underground water and strong water permeability, the underground water, particularly shallow underground water, in China is seriously polluted and contains sulfate ions, chloride ions and other aggressive media, so that the underground comprehensive pipe gallery product concrete is used as a structure soaked in the underground water for a long time and suffers from double corrosion of sulfate and chloride;
in recent years, the durability of a reinforced concrete structure in a sulfate and chloride coexisting environmentThe research in the aspect of also having obtained very big attention, each corrosion stage time has been prolonged in the existence of chlorine salt, has delayed the sulphate damage process of concrete, in addition, utility tunnel engineering is owing to collect various pipelines in an organic whole such as electric power, communication, will ubiquitous stray current corrosion phenomenon, can produce serious corrosion to the reinforcing bar in the concrete structure, the coupling effect of circular telegram and sulfate radical ion is also more and more common, stray current's effect can impel more SO4 2–The cathode solution invades into the concrete and reacts with cement hydration products to generate more ettringite and gypsum crystals, so that the strength is further reduced, and the deterioration of the concrete is accelerated;
consequently stray current and groundwater medium corrode the condition comparatively commonly in utility tunnel engineering, and circular telegram, sulfate ion and chloride ion three's coupling effect will ubiquitous in the engineering promptly, but about the test of the anti erosion resistance ability of goods and life-span improvement under the piping lane service environment seemingly report, lack corresponding test equipment, consequently, the utility model provides an erosion test equipment of piping lane prefab is in order to solve the problem that exists among the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an erosion test equipment of piping lane prefab, this erosion test equipment of piping lane prefab utilizes anodal, second wire, upper end through placing piping lane prefab core appearance in a titanium net section of thick bamboo titanium stick, titanium line, lower extreme titanium stick, a titanium net section of thick bamboo, first wire, negative pole and power constitution circuit path to experimental stray current is to the erosion circumstances of piping lane prefab core appearance, through placing piping lane prefab core appearance and a titanium net section of thick bamboo in the erosion solution, makes the erosion solution see through titanium net section of thick bamboo contact piping lane prefab core appearance, thereby the erosion circumstances of experimental sulphate, chlorine salt to piping lane prefab core appearance.
For realizing the purpose of the utility model, the utility model discloses a following technical scheme realizes: the utility model provides an erosion test equipment of piping lane prefab, includes a test section of thick bamboo, a titanium net section of thick bamboo, piping lane prefab core appearance and power, a titanium net section of thick bamboo has been placed to the inside middle-end of a test section of thick bamboo, and the bore of a titanium net section of thick bamboo is less than the bore of a test section of thick bamboo, piping lane prefab core appearance is placed in the inside of a titanium net section of thick bamboo, the inside of a test section of thick bamboo is equipped with the erosion solution, the inside of piping lane prefab core appearance is equipped with the installation cavity, and the inside upper and lower extreme of installation cavity all is equipped with the titanium stick, two sets of be connected with the titanium line between the titanium stick, the upper end the titanium stick extends piping lane prefab core appearance, the lower extreme the titanium stick contacts with a titanium net section of thick bamboo.
The further improvement lies in that: the power supply is provided with a negative electrode and a positive electrode, the titanium rod at the upper end serves as a negative electrode, the titanium mesh cylinder serves as a positive electrode, a first lead is connected between the negative electrode and the titanium mesh cylinder, and a second lead is connected between the positive electrode and the titanium rod at the upper end.
The further improvement lies in that: the anode, the second lead, the upper end of the titanium rod, the upper end of the titanium wire, the lower end of the titanium rod, the titanium mesh cylinder, the first lead and the cathode form a circuit path, and the outer side of the prefabricated part core sample of the pipe gallery is attached to the titanium mesh cylinder.
The further improvement lies in that: the erosion solution is a mixed solution of sulfate and chloride, and the inside of the erosion solution contains sulfate ions and chloride ions.
The further improvement lies in that: the tube corridor prefabricated part core sample is a cylinder test piece with the diameter of 50 mm and the height of 50 mm.
The utility model has the advantages that: the utility model discloses a place piping lane prefab core appearance in a titanium net section of thick bamboo, utilize positive pole, second wire, upper end titanium stick, titanium line, lower extreme titanium stick, a titanium net section of thick bamboo, first wire, negative pole and power constitute the circuit path to the erosion condition of experimental stray current to piping lane prefab core appearance, through placing piping lane prefab core appearance and a titanium net section of thick bamboo in the erosion solution, make the erosion solution see through a titanium net section of thick bamboo contact piping lane prefab core appearance, thereby experimental sulphate, the erosion condition of chlorine to piping lane prefab core appearance, to sum up, be convenient for experimental circular telegram, the influence of sulfate radical ion and chloride ion three's coupling to piping lane prefab core appearance, it is experimental more comprehensive, it is more accurate to obtain data.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the test cartridge of the present invention;
figure 3 is the utility model discloses an inside schematic diagram of piping lane prefab core appearance.
Wherein: 1. a test cartridge; 2. a titanium mesh cylinder; 3. performing a pipe gallery prefabricated part core sample; 4. a power source; 5. etching the solution; 6. a mounting cavity; 7. a titanium rod; 8. a titanium wire; 9. a negative electrode; 10. a positive electrode; 11. a first conductive line; 12. a second conductive line.
Detailed Description
In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.
According to fig. 1, 2, 3 show, this embodiment has proposed an erosion test equipment of piping lane prefab, including a test section of thick bamboo 1, a titanium net section of thick bamboo 2, piping lane prefab core appearance 3 and power 4, a titanium net section of thick bamboo 2 has been placed to the inside middle-end of a test section of thick bamboo 1, and the bore of a titanium net section of thick bamboo 2 is less than the bore of a test section of thick bamboo 1, piping lane prefab core appearance 3 is placed in the inside of a titanium net section of thick bamboo 2, the inside of a test section of thick bamboo 1 is equipped with erosion solution 5, the inside of piping lane prefab core appearance 3 is equipped with installation cavity 6, and the inside upper and lower extreme of installation cavity 6 all is equipped with titanium stick 7, and is two sets of be connected with titanium line 8 between the titanium stick 7, the upper end titanium stick 7 extends piping lane prefab core appearance 3, the lower extreme titanium stick 7 contacts with a titanium net section of thick bamboo 2.
The power supply 4 is provided with a negative electrode 9 and a positive electrode 10, the titanium rod 7 at the upper end is used as a negative electrode, the titanium mesh cylinder 2 is used as a positive electrode, a first lead 11 is connected between the negative electrode 9 and the titanium mesh cylinder 2, and a second lead 12 is connected between the positive electrode 10 and the titanium rod 7 at the upper end.
The anode 10, the second lead 12, the titanium rod 7 at the upper end, the titanium wire 8, the titanium rod 7 at the lower end, the titanium mesh cylinder 2, the first lead 11 and the cathode 9 form a circuit path, and the titanium mesh cylinder 2 is attached to the outer side of the prefabricated part core sample 3 of the pipe gallery.
The etching solution 5 is a mixed solution of sulfate and chloride, and the inside of the etching solution 5 contains sulfate ions and chloride ions.
The tube gallery prefabricated part core sample 3 is a cylinder test piece with the diameter of 50 mm and the height of 50 mm.
When the device is used, a cylindrical test piece with a pre-embedded titanium rod is used as a core sample of the pipe gallery prefabricated part, a titanium wire is connected with the titanium rod, the core sample is maintained for 28d, a cutting machine is used for cutting the cylindrical test piece with the diameter of 50 mm and the height of 50 mm, the compression strength test of the test piece is carried out before the test as a reference value, the test piece is taken out every 4 weeks after the test is powered on for carrying out the compression strength test, and the time-varying rule of the compression strength of the test piece is obtained; meanwhile, the diameter of the test piece is measured before the test as a reference value by using a Digital Image Correlation Method (DICM) and combining with the test requirement of the test by using a self-programmed image processing program, the diameter of the test piece is measured every 4 weeks after electrification, and the expansion rate of the test piece is calculated according to the formula x.
In the formula: pt-the swelling rate of the test piece after t days, in units%;
l is the length of the test piece, and the unit is mm;
dtthe diameter of the test piece after t days is in a unit of mm;
d0the initial diameter of the test piece is mm.
The performance of the product mainly depends on the characteristics of macroscopic and microscopic structures, so the microstructure characteristics of the product need to be analyzed and researched, due to the existence of test errors and the randomness of samples, the product is generally researched at the microscopic level by adopting a plurality of methods to jointly judge the performance of the product, and the time-dependent change rule of the composition, the structure, the morphology and the like of corrosion products in the service environment of a pipe gallery is researched through analytical testing methods such as XRD, SEM, EDS, TG, DSC and the like.
This erosion test equipment of piping lane prefab is through placing piping lane prefab core appearance 3 in titanium net section of thick bamboo 2, utilize anodal 10, second wire 12, upper end titanium stick 7, titanium line 8, lower extreme titanium stick 7, titanium net section of thick bamboo 2, first wire 11, negative pole 9 and power 4 constitute the circuit path, thereby experimental stray current is to the erosion condition of piping lane prefab core appearance 3, through placing piping lane prefab core appearance 3 and titanium net section of thick bamboo 2 in erosion solution 5, make erosion solution 5 see through titanium net section of thick bamboo 2 contact piping lane prefab core appearance 3, thereby experimental sulphate, the erosion condition of chloride to piping lane prefab core appearance 3, to sum up, be convenient for experimental circular telegram, the influence of sulfate radical ion and chloride ion three's coupling effect to piping lane prefab core appearance 3, it is more comprehensive to test, it is more accurate to obtain data.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides an erosion test equipment of piping lane prefab which characterized in that: including a test section of thick bamboo (1), a titanium net section of thick bamboo (2), piping lane prefab core appearance (3) and power (4), a titanium net section of thick bamboo (2) has been placed to the inside middle-end of a test section of thick bamboo (1), and the bore of a titanium net section of thick bamboo (2) is less than the bore of a test section of thick bamboo (1), piping lane prefab core appearance (3) are placed in the inside of a titanium net section of thick bamboo (2), the inside of a test section of thick bamboo (1) is equipped with erosion solution (5), the inside of piping lane prefab core appearance (3) is equipped with installation cavity (6), and the last lower extreme of installation cavity (6) inside all is equipped with titanium stick (7), and is two sets of be connected with titanium line (8) between titanium stick (7), upper end titanium stick (7) extend piping lane prefab core appearance (3), the lower extreme titanium stick (7) and a titanium net section of thick bamboo (2) contact.
2. The apparatus of claim 1 for erosion testing of a piping lane preform, wherein: the power supply (4) is provided with a negative electrode (9) and a positive electrode (10), the titanium rod (7) at the upper end is used as a negative electrode, the titanium mesh cylinder (2) is used as a positive electrode, a first lead (11) is connected between the negative electrode (9) and the titanium mesh cylinder (2), and a second lead (12) is connected between the positive electrode (10) and the titanium rod (7) at the upper end.
3. The apparatus of claim 2 for erosion testing of a tube lane preform, wherein: the tube rack prefabricated part is characterized in that the anode (10), the second lead (12), the upper end, the titanium rod (7), the titanium wire (8) and the lower end, the titanium rod (7), the titanium net barrel (2), the first lead (11) and the negative electrode (9) form a circuit path, and the outer side of the tube rack prefabricated part core sample (3) is attached to the titanium net barrel (2).
4. The apparatus of claim 1 for erosion testing of a piping lane preform, wherein: the pipe gallery prefabricated part core sample (3) is a cylinder test piece with the diameter of 50 mm and the height of 50 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120516889.4U CN215297085U (en) | 2021-03-11 | 2021-03-11 | Erosion test equipment of piping lane prefab |
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| CN202120516889.4U CN215297085U (en) | 2021-03-11 | 2021-03-11 | Erosion test equipment of piping lane prefab |
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| CN215297085U true CN215297085U (en) | 2021-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508121A (en) * | 2022-01-24 | 2022-05-17 | 中国电建集团海南电力设计研究院有限公司 | Desert photovoltaic support foundation stabilizing device |
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2021
- 2021-03-11 CN CN202120516889.4U patent/CN215297085U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508121A (en) * | 2022-01-24 | 2022-05-17 | 中国电建集团海南电力设计研究院有限公司 | Desert photovoltaic support foundation stabilizing device |
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