CN211402077U - Acid rain corrosion simulation test device - Google Patents
Acid rain corrosion simulation test device Download PDFInfo
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- CN211402077U CN211402077U CN201922084700.4U CN201922084700U CN211402077U CN 211402077 U CN211402077 U CN 211402077U CN 201922084700 U CN201922084700 U CN 201922084700U CN 211402077 U CN211402077 U CN 211402077U
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Abstract
The utility model discloses an acid rain corrosion simulation test device, which comprises a rainfall simulation box and an acid rain water supply device, wherein a rainfall simulator is installed at the top of the rainfall simulation box, a water inlet of the rainfall simulator is communicated with the water supply device through a pipeline, and a water outlet is arranged on the bottom surface of the rainfall simulation box; the lower end face of the rainfall simulator is provided with a plurality of spray heads, the spray heads are communicated with a water inlet of the rainfall simulator, the bottom surface of the rainfall simulation box is lowered from the periphery to the center, the bottom of the rainfall simulation box is provided with a sample placing plate along the horizontal direction, and a gap is formed between the sample placing plate and the bottom surface of the rainfall simulation box; rainfall simulation roof portion sets up this rainfall simulator that sets up, and rainfall simulator intercommunication acid rain water supply installation is provided with the sample in the rainfall simulation incasement and places the board, places the sample on the board is placed to the sample, can be used for simulating the influence to the sample at acid rain condition, can be for aassessment bituminous mixture's acid rain resistant degree, for improving there is the acid rain area to provide the basis with bituminous mixture.
Description
Technical Field
The utility model belongs to the technical field of road engineering, concretely relates to acid rain corrosion simulation test device.
Background
In recent 10 years, the research on the erosion damage of acid rain to concrete materials is increasingly carried out at home and abroad, and the erosion action of the acid rain is also considered in newly constructed 'technical specification for road cement concrete pavement construction' and 'technical guidance for application of road engineering cement concrete admixture and admixture'. However, the existing technical specification for constructing the asphalt pavement of the highway and the design specification for the asphalt pavement of the highway do not consider the problem of corrosion of acid rain to the asphalt pavement, so that the corrosion of acid rain to the asphalt mixture is not paid enough attention, and the problem is one of the reasons that the service life of the asphalt pavement can not reach the design age limit generally at present. Particularly, the duration of rainy seasons is long in western regions of China, the rainfall is large, most of the rainfall is acid rain, and the corrosion of the acid rain to the asphalt mixture is more prominent. Under the corrosion action of acid rain, aggregate in the asphalt mixture is corroded, certain components in the aggregate are lost, material parameters such as density and porosity of the asphalt mixture are changed, and adverse effects are caused on water seepage performance of the asphalt mixture, oxidation of asphalt, rutting, fatigue life, high-temperature permanent deformation resistance and strength of the asphalt mixture, so that an effective and convenient indoor simulation device for acid rain corrosion of the asphalt mixture is necessary to design, and the device has important significance for researching the influence of acid rain corrosion on long-term performance of an asphalt pavement.
However, at present, no suitable related test equipment is available at home and abroad to conduct research on indoor simulation of acid rain corrosion of the asphalt mixture, a simple acid liquor soaking mode is generally adopted, the test efficiency is low, the effect is poor, the difference with an actual acid rain environment is large, the performance change condition of the asphalt pavement in the actual acid rain environment cannot be accurately simulated, and the research on the influence of acid rain on the performance of the asphalt pavement is greatly limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide an acid rain corrodes simulation test device, this test device is arranged in solving the problem that lacks the test device that acid rain corrodes bituminous mixture among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize: a simulation test device for acid rain corrosion comprises a rainfall simulation box and an acid rain water supply device, wherein a rainfall simulator is installed at the top of the rainfall simulation box, a water inlet of the rainfall simulator is communicated with the water supply device through a pipeline, and a water outlet is formed in the bottom surface of the rainfall simulation box; be provided with a plurality of shower nozzle on rainfall simulator's the lower terminal surface, shower nozzle intercommunication rainfall simulator's water inlet, the bottom surface of rainfall simulation case reduces from all around to the center gradually, and the bottom of rainfall simulation case sets up the sample along the horizontal direction and places the board, and the sample is placed and is equipped with the clearance between the bottom surface of rainfall simulation case.
The rainfall simulator comprises a plurality of water pipes arranged in parallel, and a plurality of water holes are formed in the water pipes.
The acid rain water supply device comprises a pH adjusting water tank and a water tank, wherein a pH value monitor is arranged in the pH adjusting water tank, a water outlet of the pH adjusting water tank is communicated with a water inlet of the water tank, and a water outlet of the water tank is communicated with a water inlet of the rainfall simulator; a first heater and a first temperature monitor are arranged in the water tank.
The pipeline is sequentially provided with a water pump, a water pressure meter and a flowmeter along the flow direction of water.
A plurality of water permeable holes are formed in the sample placing plate.
A filtering water tank is arranged between the pH adjusting water tank and the water outlet of the rainfall simulation tank, the water inlet of the filtering water tank is communicated with the water outlet of the rainfall simulation tank, the water outlet of the filtering water tank is connected with the water inlet of the pH adjusting water tank, a filter is arranged in the filtering water tank, the water outlet of the rainfall simulation tank is arranged at the central position of the bottom surface, the water outlet is communicated with the water inlet of the filtering water tank, and the water inlet of the filtering water tank is also communicated with a tap.
Two opposite side surfaces of the rainfall simulation box are provided with ventilation openings, and fans are arranged at the ventilation openings; and a second heater and a second temperature monitor are arranged in the rainfall simulation box.
The top of rainfall simulation case is provided with slide mechanism, slide mechanism includes driving motor, lead screw and screw-nut, and the lead screw sets up along the horizontal direction, and driving motor's output and lead screw are connected, and wherein the lead screw rotates with the rainfall simulation case to be connected, and the rainfall simulator is connected with screw-nut.
The rainfall simulator comprises a plurality of water pipes which are parallel to each other, a spray head mounting hole is formed in each water pipe, the spray head is in threaded connection with the water pipes, the spray head comprises a hollow cylinder and an arc-shaped plate, the inner wall of the hollow cylinder is a conical surface, an internal thread is formed in the inner wall of the hollow cylinder, three arc-shaped plates in close contact with each other are arranged in the spray head, the upper end of each arc-shaped plate is in threaded connection with the inner wall of the hollow cylinder, and the lower ends of the three arc-shaped plates form.
The temperature controller is characterized by further comprising a console, wherein the console is internally provided with a controller, a temperature controller and a touch display screen, the first temperature monitor and the second temperature monitor are connected with the input end of the temperature controller, and the first heater and the second heater are connected with the output end of the temperature controller; the pH value monitor, the water pressure meter and the flowmeter are all connected with the input end of the controller; the control signal input ends of the water pump and the driving motor are connected with the control signal output end of the controller, and the I/O interface of the controller is connected with the touch display screen.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses an acid rain corrosion simulation test device, the rainfall simulator is arranged at the top of a rainfall simulation box, the rainfall simulator is communicated with an acid rain water supply device, a sample placing plate is arranged in the rainfall simulation box, a sample is placed on the sample placing plate, the whole test device can be used for simulating the influence of acid rain conditions on the sample, and further can provide a basis for evaluating the acid rain resistance degree of asphalt mixture and improving the asphalt mixture for areas with acid rain; the bottom surface of rainfall simulation case reduces to the center from all around gradually, and the sample is placed and is equipped with the clearance between board and the rainfall simulation case bottom surface, and the acid rain simulation water of sample of flowing through can be smoothly discharged from the delivery port of rainfall simulation case, avoids acidic water to produce the etching effect to the sample, can ensure that analogue test goes on under the preset condition.
Furthermore, the rainfall simulator comprises a plurality of water pipes which are arranged in parallel, a plurality of water holes are formed in the water pipes, an approximately real rainfall state can be formed, and the rainfall simulator is simple in structure and manufacturing process and low in cost.
Furthermore, a pH adjusting water tank is arranged in the water supply device, so that the device can be used for simulating rainwater with different acidity, and the pH value of the rainwater is consistent with that of actual acid rain.
Furthermore, the water inlet of the water tank is also communicated with a tap water pipe, so that loss in the test process can be supplemented in time.
Further, set up first heater and first temperature monitor in the water tank, can heat the water of simulation acid rain to adjust the temperature of simulation acid rain, make it more press close to real environment.
Furthermore, a water pump, a water pressure meter and a flowmeter are sequentially arranged along the flow direction of water on a pipeline for delivering water to the rainfall simulator, so that the rainfall simulator can accurately simulate the rainfall with different rainfall intensities and can monitor the rainfall according to the flowmeter in real time.
Furthermore, two opposite side surfaces of the rainfall simulation box are provided with ventilation openings, and fans are arranged at the ventilation openings; a second heater and a second temperature monitor are arranged in the rainfall simulation box, and the fan can be used for simulating the rainfall condition under the windy meteorological condition; a second heater and a second temperature monitor are arranged in the rainfall simulation box, so that the temperature in the rainfall simulation box can be adjusted to the simulated environment temperature.
Further, a sliding mechanism is arranged at the top of the rainfall simulation box and comprises a driving motor, a screw rod and a screw rod nut, the output end of the driving motor is connected with the screw rod, the screw rod is rotatably connected with the rainfall simulation box, a rainfall simulator is connected with the screw rod nut, and the rainfall simulator can move along the horizontal direction to enable rainwater to always cover the sample.
Further, the rainfall simulator includes a plurality of water pipes that are parallel to each other, set up the shower nozzle mounting hole on the water pipe, the shower nozzle adopts threaded connection with the water pipe, and the shower nozzle includes hollow cylinder and arc, and hollow cylinder's inner wall is the conical surface, and the internal thread is seted up to hollow cylinder's inner wall, is provided with three blocks of close contact's arc in the shower nozzle, arc upper end and hollow cylinder inner wall threaded connection, the lower extreme of three blocks of arcs forms the delivery port, through the rotation the diameter of its delivery port that forms can be changed to the arc, and then the condition of simulation different raindrops size.
Furthermore, a controller and a temperature controller are arranged in the console, the first temperature monitor and the second temperature monitor are connected with the input end of the temperature controller, and the first heater and the second heater are connected with the output end of the temperature controller; the pH value monitor, the water pressure meter and the flowmeter are all connected with the input end of the controller; the control signal input ends of the water pump and the driving motor are connected with the output end of the controller, so that the automatic control of the device is facilitated, and the accuracy of a simulation test can be improved.
Furthermore, an I/O interface of the controller is connected with the touch display screen, and the device can be automatically controlled through the touch display screen.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a front view of the rainfall simulation box of the present invention;
fig. 3 is a partial schematic view of an optional rainfall simulator of the present invention.
Fig. 4 is a schematic view of the local bottom view of the sprinkler head of the present invention.
Fig. 5 is a schematic partial sectional view of the nozzle of the present invention.
Wherein: 1-rainfall simulation box, 11-second heater, 12-second temperature monitor, 13-sample placing plate, 14-box door, 2-water box, 21-first temperature monitor, 22-first heater, 3-pipeline, 4-water pump, 5-water pressure meter, 6-filtering water box, 61-filter, 62-external water pipe, 7-pH adjusting water box, 71-pH value monitor, 8-lead screw, 81-lead screw nut, 82-driving motor, 9-rainfall simulator, 91-water pipe, 92-Hollow cylinder, 93-Arc plate, 10-flowmeter.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and encompass, for example, both fixed and removable connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the utility model discloses an acid rain corrosion simulation test device, which comprises a rainfall simulation box 1 and an acid rain water supply device, wherein a rainfall simulator 9 is installed at the top of the rainfall simulation box 1, a water inlet of the rainfall simulator 9 is communicated with the water supply device through a pipeline 3, and a water outlet is arranged at the bottom surface of the rainfall simulation box 1; be provided with a plurality of shower nozzle on rainfall simulator 9's the lower terminal surface, shower nozzle intercommunication rainfall simulator 9's water inlet, the bottom surface of rainfall simulation case 1 reduces from all around to the center gradually, and the bottom of rainfall simulation case 1 sets up the sample along the horizontal direction and places board 13, and the sample is placed and is equipped with the clearance between the bottom surface of board 13 and rainfall simulation case 1.
As an optional embodiment, the rainfall simulator 9 comprises a plurality of water pipes arranged in parallel, and a plurality of water holes are formed on the water pipes.
The water pipe is provided with water holes with different sizes so as to simulate different raindrop sizes.
As shown in fig. 1, the acid rain water supply device comprises a pH adjusting water tank 7 and a water tank 2, wherein a pH monitor is arranged in the pH adjusting water tank 7, a water outlet of the pH adjusting water tank 7 is communicated with a water inlet of the water tank 2, and a water outlet of the water tank 2 is communicated with a water inlet of a rainfall simulator 9; a first heater 22 and a first temperature monitor 21 are arranged in the water tank 2; the pipeline 3 is provided with a water pump 4, a water pressure gauge 5 and a flowmeter 10 in sequence along the flow direction of water.
A plurality of water permeable holes are arranged on the sample placing plate 13.
A filtering water tank 6 is arranged between the pH adjusting water tank 7 and the water outlet of the rainfall simulation tank 1, the water inlet of the filtering water tank 6 is communicated with the water outlet of the rainfall simulation tank 1, the water outlet of the filtering water tank 6 is connected with the water inlet of the pH adjusting water tank 7, a filter is arranged in the filtering water tank 6, the water outlet of the rainfall simulation tank 1 is arranged at the center of the bottom surface, the water outlet is communicated with the water inlet of the filtering water tank 6, and the water inlet of the filtering water tank 6 is communicated with a tap water pipe.
Two opposite side surfaces of the rainfall simulation box 1 are provided with ventilation openings, and fans are arranged at the ventilation openings; the rainfall simulation box 1 is internally provided with a second heater 11 and a second temperature monitor 12.
As shown in fig. 1 and 2, a sliding mechanism is arranged at the top of the rainfall simulation box 1, the sliding mechanism comprises a driving motor 82, a screw rod 8 and a screw rod nut 81, the screw rod 8 is arranged along the horizontal direction, the output end of the driving motor 82 is connected with the screw rod 8, wherein the screw rod 8 is rotatably connected with the rainfall simulation box 1, and the rainfall simulator 9 is connected with the screw rod nut 81.
As shown in fig. 3, 4 and 5, the rainfall simulator 9 includes a plurality of water pipes 91 parallel to each other, a nozzle mounting hole is formed in each water pipe 91, the nozzle is connected with the water pipes 91 through threads, the nozzle includes a hollow cylinder 92 and an arc-shaped plate 93, the inner wall of the hollow cylinder 92 is a conical surface, internal threads are formed in the inner wall of the hollow cylinder 92, three arc-shaped plates 93 in close contact with each other are arranged in the nozzle, the upper end of each arc-shaped plate 93 is connected with the inner wall of the hollow cylinder 92 through threads, and the lower ends of the three arc-shaped plates 93 form a water outlet.
The temperature control system further comprises a console, wherein the console is internally provided with a controller, a temperature controller and a touch display screen, the first temperature monitor and the second temperature monitor 12 are connected with the input end of the temperature controller, and the first heater 22 and the second heater 12 are connected with the output end of the temperature controller; the pH value monitor 71, the water pressure meter 5 and the flowmeter 10 are all connected with the input end of the controller; the control signal input ends of the water pump 4 and the driving motor 82 are connected with the control signal output end of the controller, and the I/O interface of the controller is connected with the touch display screen.
As shown in fig. 1, the filtering water tank 6 is a closed water tank, a pipeline and an external water pipe 62 are inserted into the upper wall of the closed water tank, the pipeline 3 is a water outlet pipe of the rainfall simulator 9, the external water pipe 62 is communicated to tap water or a reclaimed water source for convenient water use, and the external water pipe 62 and the water outlet pipe of the rainfall simulation tank 1 penetrate through the top of the filtering water tank 6 to supply water to the interior of the filtering water tank 6; the filter 61 is fixedly arranged in the filtering water tank 6, the filter 61 is transversely arranged in the filtering water tank 6, and four side edges of the filter 61 are fixedly connected with four side walls of the filtering water tank 6 respectively, so that the filter 61 can completely filter and filter the water collected in the rainfall simulation box 1 and then recycle the water; the water outlet pipe of the filtering water tank is communicated with the pipeline of the pH adjusting water tank 7, the water outlet pipe of the filtering water tank 6 extends into the filtered water in the filtering water tank 6, and the filtered water is pumped into the pH adjusting water tank 7.
The water inlet of the pH adjusting water tank 7 is communicated with the water outlet pipe of the filtering water tank 6, the side wall of the pH adjusting water tank 7 is fixedly provided with a pH value monitor 71, the pH value monitor 71 is connected with the input end of the controller, and the pH value monitor 71 feeds back the real-time pH value to the controller.
Adjusting the pH value of the water body in the pH adjusting water tank 7 to simulate the actual pH value of rainwater to meet the field condition, wherein a water outlet pipeline of the pH adjusting water tank 7 is communicated to a water inlet of the water tank 2; a first temperature monitor 21 and a first heater 22 are provided in the water tank 2, and preferably, the first temperature monitor 21 and the first heater 22 are both immersed in the water tank 2.
As shown in fig. 1, a water outlet of a water tank 2 is connected to a water inlet of a water pump 4 through a pipeline 3, a water outlet of the water pump 4 is communicated to a water inlet of a rainfall simulator 9, a water pressure meter 5 is arranged between the water pump 4 and the rainfall simulator 9 and used for monitoring water pressure, and the water pressure meter 5 is connected with an input end of a controller and feeds back the water pressure of the water pump 4 to the controller in real time; the output power of the water pump 4 is adjusted to dynamically apply pressure to the water, so that the water outlet speed and the rain intensity of the rainfall simulator 9 are changed.
As shown in fig. 1 and 2, a door 14 is arranged on any outer side wall of the rainfall simulation box 1, a door handle is fixedly arranged on the outer surface of the door 14, and the door is mounted on one side wall of the rainfall simulation box 19 through a hinge, so that the door can be opened or closed, and experimenters can conveniently place samples and observe the internal condition of the rainfall simulation box 1; the bin door 14 is spaced from the top and bottom of the side panels to prevent rain from splashing.
As a preferred embodiment, the door is made of transparent colorless organic glass.
The upper end of the rainfall simulator 9 is communicated with the pipeline 3, a plurality of spray heads are arranged on the rainfall simulator 9, and preferably, the arrangement mode of the spray heads on the lower end face of the rainfall simulator 9 is a transverse array along the rainfall simulator 9 and a longitudinal array along the rainfall simulator 9, so that rainfall is uniform; correspondingly, the rainfall simulator 9 is internally provided with branches according to the number and the arrangement mode of the sprayers, the water inlet end of each branch is communicated with the pipeline 3, and the pipelines 3 supply water for all the sprayers in a unified manner.
Referring to fig. 1 and fig. 1, a sample placing plate 13 is fixedly arranged on a bottom plate of a rainfall simulation box 1, a gap is reserved between the bottom of the sample placing plate 13 and the bottom plate, a water outlet is arranged at the center of the bottom plate and positioned below the sample placing plate 13, and the water outlet is connected with a water outlet pipe 33 so as to collect rainwater conveniently; preferably, the bottom plate is designed in an inverted regular quadrangular pyramid shape, and the center of the bottom plate is lower than four vertex angles of the bottom plate, so that the lowest part of the whole bottom plate of the water collecting port is convenient for water flow collection; more preferably, the four corners of the sample placing plate 13 are welded to the four edges of the side plate, and the four edges are designed in an arc shape to leave gaps with the side plate, so that water collection is facilitated.
The second heater 11 and the second temperature monitor 12 are arranged on the side surface of the rainfall simulation box 1, so that the temperature in the box can be monitored and adjusted to simulate the actual environment temperature.
Preferably, in order to lead in data more conveniently, a data transmission interface is arranged on the console, and a computer data transmission port can be connected with a computer, so that the data lead-in is more convenient, the operation is optimized, and the efficiency is improved.
The utility model discloses a concrete operation process does:
when the device is used, firstly, the box door 14 is opened, a plurality of standard asphalt mixture test pieces are placed on the sample placing plate 13, and parameters such as air temperature, rainwater landing speed, rain intensity, rainwater PH value, rainwater temperature and wind power are manually input through the console; connecting a computer with a console through a computer data transmission port arranged on the console, and directly importing data into a controller; after the data introduction is finished, the operation switch is turned on, the device starts to work, the water pump 4 pumps water, the diameter of rainwater is adjusted by the spray head through adjusting the extension of the arc-shaped plate 93,
optionally, the fan on the side of the rainfall simulation box 1 changes the output power and can be used for adjusting the rainwater inclination angle, after the adjustment of the rainwater diameter and the rainwater inclination angle is finished, the water pump 4 starts to apply pressure to water so as to regulate and control the water outlet speed and the rain intensity of the spray head in real time, the screw rod is rotated to change the spatial position relation between the rainfall simulator 9 and the sample, and the position is automatically adjusted so that the sample is completely covered by rainwater.
The utility model discloses can approximate simulation different temperature, rainwater fall to the ground speed, rain intensity, raindrop diameter, rainwater pH value, rainwater temperature and rainwater inclination's rainfall environment to for launching acid rain corrosion and laying a good foundation to bituminous paving's performance influence research, more accurate simulation is to bituminous paving's influence in actual acid rain environment, with a great deal of defect that leads to among the solution prior art, ensures the validity of test result.
The water outlet of the rainfall simulation box 1 is communicated with the water inlet of the filtering water tank 6, so that the recycling of acid rain simulation water can be realized, the direct discharge pollution to the environment is avoided, a filter is arranged in the filtering water tank, the filter can filter and recycle water collected in the rainfall simulation box, and a tap water connecting pipe can be connected with an external water source to facilitate water use; a PH value monitor is arranged on the side wall of the PH adjusting water tank and used for simulating the PH value of actual rainwater; a first temperature monitor 21 and a first heater 22 are arranged on the side wall of the temperature control water tank and used for simulating the temperature of actual rainwater; the water outlet speed and the rain intensity of the spray head can be regulated and controlled in real time by using the water pump.
According to the formula provided by the rainfall observation data:
d50＝2.52×i0.23
wherein d is50The middle diameter of the raindrop is mm, and i is the raininess intensity mm/min.
And converting the raindrop pitch diameter into the raindrop pitch diameter according to the input raindrop strength data by using a formula 1 so as to control the size of the raindrop diameter.
The utility model relates to a pair of acid rain corrosion simulation test device, rainfall analog box 1 adopt totally closed design, highly integrated, convenient operation, whole device is rational in infrastructure, the cost is low, easily realize, is fit for promoting.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The acid rain corrosion simulation test device is characterized by comprising a rainfall simulation box (1) and an acid rain water supply device, wherein a rainfall simulator (9) is installed at the top of the rainfall simulation box (1), a water inlet of the rainfall simulator (9) is communicated with the water supply device through a pipeline (3), and a water outlet is formed in the bottom surface of the rainfall simulation box (1); be provided with a plurality of shower nozzle on the lower terminal surface of rainfall simulator (9), the water inlet of shower nozzle intercommunication rainfall simulator (9), the bottom surface of rainfall simulation case (1) reduces from all around to the center gradually, and the bottom of rainfall simulation case (1) sets up the sample along the horizontal direction and places board (13), and the sample is placed and is equipped with the clearance between the bottom surface of board (13) and rainfall simulation case (1).
2. The acid rain corrosion simulation test device according to claim 1, wherein the rainfall simulator (9) comprises a plurality of water pipes arranged in parallel, and a plurality of water holes are formed in each water pipe.
3. The acid rain corrosion simulation test device according to claim 1, wherein the acid rain water supply device comprises a pH adjusting water tank (7) and a water tank (2), a pH value monitor is arranged in the pH adjusting water tank (7), a water outlet of the pH adjusting water tank (7) is communicated with a water inlet of the water tank (2), and a water outlet of the water tank (2) is communicated with a water inlet of a rainfall simulator (9); a first heater (22) and a first temperature monitor (21) are arranged in the water tank (2).
4. The acid rain corrosion simulation test device according to claim 1, wherein a water pump (4), a water pressure gauge (5) and a flow meter (10) are sequentially arranged on the pipeline (3) along the flow direction of water.
5. The acid rain corrosion simulation test device according to claim 1, wherein the sample placing plate (13) is provided with a plurality of water permeable holes.
6. The acid rain corrosion simulation test device according to claim 1, wherein a filtering water tank (6) is arranged between the pH adjusting water tank (7) and the water outlet of the rainfall simulation tank (1), the water inlet of the filtering water tank (6) is communicated with the water outlet of the rainfall simulation tank (1), the water outlet of the filtering water tank (6) is connected with the water inlet of the pH adjusting water tank (7), a filter is arranged in the filtering water tank (6), the water outlet of the rainfall simulation tank (1) is arranged at the central position of the bottom surface, the water outlet is communicated with the water inlet of the filtering water tank (6), and the water inlet of the filtering water tank (6) is also communicated with a tap water pipe.
7. The acid rain corrosion simulation test device according to claim 1, wherein ventilation openings are formed in two opposite side surfaces of the rainfall simulation box (1), and a fan is arranged at each ventilation opening; a second heater (11) and a second temperature monitor (12) are arranged in the rainfall simulation box (1).
8. The acid rain corrosion simulation test device according to claim 1, wherein a sliding mechanism is arranged at the top of the rainfall simulation box (1), the sliding mechanism comprises a driving motor (82), a screw rod (8) and a screw rod nut (81), the screw rod (8) is arranged along the horizontal direction, the output end of the driving motor (82) is connected with the screw rod (8), the screw rod (8) is rotatably connected with the rainfall simulation box (1), and the rainfall simulator (9) is connected with the screw rod nut (81).
9. The acid rain corrosion simulation test device according to claim 1, wherein the rainfall simulator (9) comprises a plurality of water pipes (91) which are parallel to each other, a nozzle mounting hole is formed in each water pipe (91), the nozzle is in threaded connection with each water pipe (91), the nozzle comprises a hollow cylinder (92) and an arc-shaped plate (93), the inner wall of the hollow cylinder (92) is a conical surface, internal threads are formed in the inner wall of the hollow cylinder (92), three arc-shaped plates (93) which are in close contact are arranged in the nozzle, the upper end of each arc-shaped plate (93) is in threaded connection with the inner wall of the hollow cylinder (92), and the lower ends of the three arc-shaped plates (93) form a water outlet.
10. The acid rain corrosion simulation test device according to any one of claims 1 to 9, further comprising a console, wherein the console is provided with a controller, a temperature controller and a touch display screen, the first temperature monitor (21) and the second temperature monitor (12) are connected with an input end of the temperature controller, and the first heater (22) and the second heater (11) are connected with an output end of the temperature controller; the pH value monitor (71), the water pressure meter (5) and the flowmeter (10) are all connected with the input end of the controller; the control signal input ends of the water pump (4) and the driving motor (82) are connected with the control signal output end of the controller, and the I/O interface of the controller is connected with the touch display screen.
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| CN201922084700.4U CN211402077U (en) | 2019-11-27 | 2019-11-27 | Acid rain corrosion simulation test device |
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| CN201922084700.4U CN211402077U (en) | 2019-11-27 | 2019-11-27 | Acid rain corrosion simulation test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779857A (en) * | 2019-11-27 | 2020-02-11 | 长安大学 | A test device for being directed at bituminous mixture simulation acid rain corrodes action |
| CN113092350A (en) * | 2021-04-21 | 2021-07-09 | 中铁二十局集团有限公司 | Acid rain corrosion test device |
| CN113155722A (en) * | 2021-04-26 | 2021-07-23 | 上海长肯试验设备有限公司 | Simulated dynamic rain erosion testing machine |
| CN114397240A (en) * | 2022-01-21 | 2022-04-26 | 广西大学 | Acid-rain-corrosion-normal-temperature drying multi-physical-field intelligent regulation test device and method |
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2019
- 2019-11-27 CN CN201922084700.4U patent/CN211402077U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779857A (en) * | 2019-11-27 | 2020-02-11 | 长安大学 | A test device for being directed at bituminous mixture simulation acid rain corrodes action |
| CN113092350A (en) * | 2021-04-21 | 2021-07-09 | 中铁二十局集团有限公司 | Acid rain corrosion test device |
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| CN114397240A (en) * | 2022-01-21 | 2022-04-26 | 广西大学 | Acid-rain-corrosion-normal-temperature drying multi-physical-field intelligent regulation test device and method |
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