CN108398372A - Shield duct piece corrosion resistance test device - Google Patents
Shield duct piece corrosion resistance test device Download PDFInfo
- Publication number
- CN108398372A CN108398372A CN201810250090.8A CN201810250090A CN108398372A CN 108398372 A CN108398372 A CN 108398372A CN 201810250090 A CN201810250090 A CN 201810250090A CN 108398372 A CN108398372 A CN 108398372A
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- Prior art keywords
- corrosion resistance
- curved
- duct piece
- shield duct
- resistance test
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- Pending
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- 238000012360 testing method Methods 0.000 title claims abstract description 74
- 230000007797 corrosion Effects 0.000 title claims abstract description 34
- 238000005260 corrosion Methods 0.000 title claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 82
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 238000001802 infusion Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
- 238000011156 evaluation Methods 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical class [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229960002668 sodium chloride Drugs 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention provides a kind of shield duct piece corrosion resistance test devices, including：Conduit component, including multiple straight trough roads and multiple curved groove roads, it is formed with direct through groove on the straight trough road, it is formed with curved straight slot on the curved groove road, the direct through groove in multiple straight trough roads and the curved straight slot in the curved groove road are contacted the fluid channel to be formed for applying coating to be detected, and the both ends of the fluid channel are respectively formed a closed liquid feeding end and an outlet end；Liquid storage tank for storing test fluid is communicated in the outlet end；And infusion pump, it is installed in the liquid storage tank, the infusion pump is by pipeline connection in the liquid feeding end.The present invention solves the problems, such as that the inner wall in blowdown tunnel can not visual evaluation its corrosion resistance.
Description
Technical field
The present invention relates to Shield Construction Technique fields, and in particular to a kind of shield duct piece corrosion resistance test device.
Background technology
Urban underground Tunnel, especially blowdown tunnel or outlet tunnel are faced with a humidity and corrosive environment.For
The service life for improving ground down blow or outlet tunnel, usually has protective coating in the coated inner wall of blowdown or outlet tunnel,
Coating can effectively obstruct sewage or dirt is directly contacted with tunnel inner wall, to greatly improve the service life in tunnel.But it is right
It then can not intuitively be evaluated in the performance of coating.
Invention content
To overcome the defects of present in the prior art, a kind of shield duct piece corrosion resistance test device is now provided, with the row of solution
The inner wall in dirty tunnel can not its corrosion resistance of visual evaluation the problem of.
To achieve the above object, a kind of shield duct piece corrosion resistance test device is provided, including：
Conduit component, including multiple straight trough roads and multiple curved groove roads are formed with direct through groove, the curved groove on the straight trough road
Curved straight slot is formed on road, the direct through groove in multiple straight trough roads and the curved straight slot in the curved groove road are contacted to be formed and be waited for for applying
The both ends of the fluid channel of the coating of detection, the fluid channel are respectively formed a closed liquid feeding end and an outlet end；
Liquid storage tank for storing test fluid is communicated in the outlet end；And
Infusion pump is installed in the liquid storage tank, and the infusion pump is by pipeline connection in the liquid feeding end.
Further, one or more blind branch slots, one or more blind branch slot connections are formed on the curved groove road
In the curved straight slot.
Further, riffler is formed in the curved groove road, the riffler is communicated in the bottom of the curved straight slot.
Further, the shape adaptation of the direct through groove and the curved straight slot is in the shape of shield duct piece.
Further, the both sides of the fluid channel are respectively equipped with backplate, length of the backplate along the fluid channel
Direction is arranged.
Further, the backplate is arc backplate, and the inside of the arc backplate is toward in the fluid channel
Side is arranged.
Further, the outlet end formation is formed with out liquid notch, and the top of the liquid storage tank is formed with feed liquor notch,
It is described go out liquid notch be communicated in the feed liquor notch.
Further, the fluid channel is in rectangular-ambulatory-plane.
Further, further include partition panel, the both ends that the partition panel is plugged in the fluid channel form closed institute
State liquid feeding end and the outlet end.
The beneficial effects of the present invention are, shield duct piece corrosion resistance test devices of the present invention by by conduit component, liquid storage
Pond and infusion pump three organically combine the circulation loop to be formed and be circulated for test fluid.It is applied on the fluid channel formed on conduit component
Coating is covered with to simulate the inner wall in blowdown tunnel.It is washed away by the flowing of test fluid, the dirt in simulation blowdown tunnel, outlet tunnel
The corrosion to tunnel inner wall of water or soiling solution trickling process, so can it is intuitive, easily by the inner wall in blowdown tunnel and coating by
The reaction washed away to the burn into of test fluid is observed, to identify blowdown tunnel coating whether be suitable for blowdown tunnel or
Outlet tunnel.
Description of the drawings
Fig. 1 is the vertical view of the first embodiment of shield duct piece corrosion resistance test device of the present invention.
Fig. 2 is the schematic diagram of the backplate of shield duct piece corrosion resistance test device of the present invention.
Fig. 3 is the schematic diagram of the backplate of shield duct piece corrosion resistance test device of the present invention.
Fig. 4 is the vertical view of the second embodiment of shield duct piece corrosion resistance test device of the present invention.
Fig. 5 is the structural schematic diagram of the 3rd embodiment of shield duct piece corrosion resistance test device of the present invention.
Fig. 6 is the vertical view of the 3rd embodiment of shield duct piece corrosion resistance test device of the present invention.
Fig. 7 is the perspective view of the 3rd embodiment of shield duct piece corrosion resistance test device of the present invention.
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this specification below by way of specific specific example
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
First embodiment
Shown in Fig. 3, the present invention provides a kind of shield duct piece corrosion resistance test devices, including：Conduit component
1, liquid storage tank 2 and infusion pump 3.Conduit component 1 includes multiple straight trough roads 11 and multiple curved groove roads 12.It is formed on straight trough road 11 straight
Straight slot.Curved straight slot is formed on curved groove road 12.Direct through groove and curved straight slot are the groove of both ends perforation.Multiple straight trough roads 11 it is straight
The curved straight slot in straight slot and curved groove road 12 is contacted the fluid channel to be formed and be flowed through for test fluid 5.Fluid channel is used for coated with to be checked
The coating 4 of survey.The both ends of fluid channel form a closed liquid feeding end and an outlet end by the closure of partition panel 14 respectively.Partition
Plate 14 is plugged in the both ends of fluid channel.Partition panel 14 is for preventing test fluid from flowing out fluid channel via outlet end or liquid feeding end
Outside.Liquid notch is formed with out on the side wall of the outlet end of fluid channel.Liquid storage tank 2 is mainly used for storing test fluid 5.Liquid storage tank 2
Upper portion side wall on be formed with feed liquor notch, what feed liquor notch was communicated in fluid channel goes out liquid notch so that test fluid is via going out
Liquid notch and feed liquor notch are flow in liquid storage tank.Infusion pump 3 is installed in liquid storage tank 2.Infusion pump 3 is by pipeline connection in fluid
The liquid feeding end in channel.
Shield duct piece corrosion resistance test device of the present invention is by organically combining conduit component, liquid storage tank and infusion pump three
Form the circulation loop to circulate for test fluid.Coated with coating to simulate blowdown tunnel on the fluid channel formed on conduit component
Inner wall.It is washed away by the flowing of test fluid, simulation blowdown tunnel, the sewage in outlet tunnel or soiling solution trickle process to tunnel
The corrosion of inner wall, and then intuitive, easily can be washed away by the burn into of test fluid the inner wall in blowdown tunnel and coating anti-
It should be observed, to identify whether the coating in blowdown tunnel is suitable for blowdown tunnel or outlet tunnel.
As a kind of preferable embodiment, as shown in Figures 2 and 3, direct through groove, fan-shaped cross section for curved straight slot, institute
The shape adaptation of direct through groove and the curved straight slot is stated in the shape of shield duct piece, to simulate in blowdown tunnel or outlet tunnel
Wall, and then provide the environment close to reality for the performance test of coating.
In the present embodiment, the cross section of direct through groove, curved straight slot is semicircle, by blowdown tunnel, the pipeline of outlet tunnel
(9 rice diameter) presses 1:45 reduce be made, direct through groove, curved straight slot a diameter of 200mm, for convenience processing, experiment and observation, directly
Straight slot, curved straight slot cross section only make semicircle shape.
When the flow velocity of test fluid in fluid channel is too fast, test fluid is overflowed out of fluid channel in order to prevent, and fluid is logical
The both sides in road are respectively equipped with backplate 13.Backplate 13 is arranged along the length direction of fluid channel.
In the present embodiment, as shown in Fig. 2, backplate 13 is vertically arranged, the plate face of backplate 13 is in straight.
In some embodiments, as shown in figure 3, backplate 13 is arc backplate.The inside of arc backplate 13 is toward straight-through
The inside of slot or curved straight slot is arranged.
As a kind of preferable embodiment, be formed with setting pot in curved groove road, setting pot be located at the lower section of curved straight slot and
It is communicated in the bottom of curved straight slot.
In the present embodiment, fluid channel is in rectangular-ambulatory-plane, but not limited to this shape can be according to need in practice of construction
It is in the fluid channel of any shape by straight trough road and curved groove road series winding.In the present embodiment, the quantity of partition panel is one piece, stream
The first end in body channel is connected to the first side of partition panel, the second side of the second end of fluid channel.
As a kind of preferable embodiment, the outlet end of fluid channel is located at the top of liquid storage tank 2 so that test liquid stream
It is flowed back in liquid storage tank automatically through going out liquid notch.
Test fluid 5 is tap water, a concentration of 0.5% detergent solution, saturated calcium hydroxide aqueous solution, a concentration of
5% sodium-chloride water solution, any one in the aqueous sulfuric acid of pH=1.
A certain amount of sand can be added in test fluid 5 as needed, increase the destruction of test fluid 5.Test fluid
Middle that general yellow sand (40 mesh~70 mesh) is added, volume 5%~10% carries out drift sand erosion to coating.It can be mixed in test fluid
Some sludge carry out the mildewproof observation in tunnel.
The circulation principle of test fluid：First test fluid is stored in liquid storage tank, recycles delivery pump by the survey in liquid storage tank
Test solution is pumped to the liquid feeding end of fluid channel, and the test fluid of delivery pump pumping flow to outlet end from the liquid feeding end of fluid channel, goes out
Liquid notch is formed out on liquid end, goes out the feed liquor notch that liquid notch is communicated in the top of liquid storage tank so that test fluid is lacked by going out liquid
Mouth and feed liquor notch flow back in liquid storage tank.
By controlling the power of delivery pump, the flow of test fluid can be controlled to control the flow velocity of test fluid.It is controllable to survey
The flowing velocity of test solution is in 0.05m/s~0.30m/s, and in terms of semicanal, corresponding flux is 2827kg/h~16965kg/h, can
It is suitably corrected according to real fluxes.
As a kind of preferable embodiment, it is equipped with spoiler in fluid channel, spoiler is manufactured when test fluid flows through
Whirlpool, to increase the test to coating.It is randomly provided spoiler in any position of fluid channel and manufactures helical swirl, is used for mould
Quasi- corrosion of the air to tunnel.
It can be divided into loop test in the testing experiment to coating and be divided into two kinds of continuous cycle and intermittent cyclic.
One, continuous cycle
Test fluid is poured into liquid storage tank, then test fluid is conveyed into the liquid feeding end of fluid channel by delivery pump,
Test fluid is back to after flowing to outlet end from liquid feeding end in liquid storage tank.Circulating for test fluid is (7 days) for 1 week, observation stream
Whether the coating of body channel coating be corroded, crack, peeling phenomenon, if it has not, illustrating that the coating of test is qualified.
Two, intermittent cyclic
Test fluid is poured into liquid storage tank, then test fluid is conveyed into the liquid feeding end of fluid channel by delivery pump,
Test fluid is back to after flowing to outlet end from liquid feeding end in liquid storage tank.Test fluid circulate lasting 8h after, it is out of service, will
Test fluid in fluid channel all flow in liquid storage tank (simulation alternation of wetting and drying), and fluid channel is kept to dry 16h.So repeat
Loop test 1 week, whether the coating of observation fluid channel coating is corroded, cracks, peeling phenomenon illustrates to test if not having
Coating it is qualified.
Second embodiment
Fig. 4 is the vertical view of the second embodiment of shield duct piece corrosion resistance test device of the present invention.
Refering to Fig. 4, the present embodiment and first embodiment difference lies in：It is formed on curved groove road 12 there are one blind branch slot 121,
Blind branch slot 121 is communicated in curved straight slot, remaining is no different with first embodiment, therefore details are not described herein.
In the present embodiment, the curved straight slot 12 of blind branch slot 121 is for simulating blowdown tunnel or outlet tunnel there are one being formed
Threeway turning joint；The curved straight slot 12 of no blind branch slot 121 is used to simulate the two-way turning joint of blowdown tunnel or outlet tunnel.
As a kind of preferable embodiment, when composition contacts straight trough road and curved groove road to form fluid channel, curved groove
Road, which can be selected, to form that there are one the curved straight slot of blind branch slot and curved straight slots without blind branch slot.
3rd embodiment
Fig. 5 is that structural schematic diagram, Fig. 6 of the 3rd embodiment of shield duct piece corrosion resistance test device of the present invention are the present invention
Vertical view, Fig. 7 of the 3rd embodiment of shield duct piece corrosion resistance test device are shield duct piece corrosion resistance test device of the present invention
3rd embodiment perspective view.
Shown in Fig. 5 to Fig. 7, the present embodiment and first embodiment difference lies in：It is formed on curved groove road 12 multiple blind
Branch slot 121, multiple blind branch slots 121 are respectively communicated in curved straight slot, remaining is no different with first embodiment, therefore details are not described herein.
In the present embodiment, the quantity of blind branch slot 121 is two.The curved straight slot 12 of blind branch slot 121 is used for there are two being formed
Simulate the four-way turning joint of blowdown tunnel or outlet tunnel.
In the present embodiment, curved straight slot is L-shaped, and two blind branch slots form cross with curved straight slot.
It, can be by blind by two of one or more curved groove roads when testing the coating in fluid channel using test fluid
Branch slot blocks a blind branch slot or two blind branch slots using baffle, to simulate the threeway turning joint in blowdown tunnel or outlet tunnel
Or two-way turning joint.
It should be noted that structure, ratio, size etc. depicted in this specification institute accompanying drawings, only coordinating
The bright revealed content of book is not limited to the enforceable limit of the present invention so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences under the effect of present invention can be generated and the purpose that can reach, should all still fall and be obtained in disclosed technology contents
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection domain.
Claims (9)
1. a kind of shield duct piece corrosion resistance test device, which is characterized in that including：
Conduit component, including multiple straight trough roads and multiple curved groove roads, are formed with direct through groove on the straight trough road, on the curved groove road
Be formed with curved straight slot, the direct through groove in multiple straight trough roads and the curved straight slot in the curved groove road contact to be formed it is to be detected for applying
Coating fluid channel, the both ends of the fluid channel are respectively formed a closed liquid feeding end and an outlet end；
Liquid storage tank for storing test fluid is communicated in the outlet end；And
Infusion pump is installed in the liquid storage tank, and the infusion pump is by pipeline connection in the liquid feeding end.
2. shield duct piece corrosion resistance test device according to claim 1, which is characterized in that be formed on the curved groove road
One or more blind branch slots, one or more blind branch slots are communicated in the curved straight slot.
3. shield duct piece corrosion resistance test device according to claim 2, which is characterized in that be formed in the curved groove road
Riffler, the riffler are communicated in the bottom of the curved straight slot.
4. shield duct piece corrosion resistance test device according to claim 1, which is characterized in that the direct through groove and described curved
The shape adaptation of straight slot is in the shape of shield duct piece.
5. shield duct piece corrosion resistance test device according to claim 1, which is characterized in that the both sides of the fluid channel
It is respectively equipped with backplate, the backplate is arranged along the length direction of the fluid channel.
6. shield duct piece corrosion resistance test device according to claim 5, which is characterized in that the backplate is arc protective
The inside of plate, the arc backplate is arranged toward the inside of the fluid channel.
7. shield duct piece corrosion resistance test device according to claim 1, which is characterized in that the outlet end to be formed
Have a liquid notch, the top of the liquid storage tank is formed with feed liquor notch, it is described go out liquid notch be communicated in the feed liquor notch.
8. shield duct piece corrosion resistance test device according to claim 1, which is characterized in that the fluid channel is in Back Word
Shape.
9. shield duct piece corrosion resistance test device according to claim 1, which is characterized in that further include partition panel, it is described
The both ends that partition panel is plugged in the fluid channel form the closed liquid feeding end and the outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810250090.8A CN108398372A (en) | 2018-03-26 | 2018-03-26 | Shield duct piece corrosion resistance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810250090.8A CN108398372A (en) | 2018-03-26 | 2018-03-26 | Shield duct piece corrosion resistance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108398372A true CN108398372A (en) | 2018-08-14 |
Family
ID=63092916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810250090.8A Pending CN108398372A (en) | 2018-03-26 | 2018-03-26 | Shield duct piece corrosion resistance test device |
Country Status (1)
| Country | Link |
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Application publication date: 20180814 |