CN219996837U - Water permeability coefficient testing device - Google Patents
Water permeability coefficient testing device Download PDFInfo
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- CN219996837U CN219996837U CN202321556275.4U CN202321556275U CN219996837U CN 219996837 U CN219996837 U CN 219996837U CN 202321556275 U CN202321556275 U CN 202321556275U CN 219996837 U CN219996837 U CN 219996837U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 239
- 238000012360 testing method Methods 0.000 title claims abstract description 92
- 230000035699 permeability Effects 0.000 title claims abstract description 26
- 238000005086 pumping Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 5
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 238000011041 water permeability test Methods 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 60
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to the technical field of material water permeability tests, in particular to a portable material water permeability coefficient testing device which comprises a sample testing device, a circulating water supply device and a timing water flowmeter, wherein the sample testing device comprises a water overflow tank, an upper testing sample cylinder and a lower testing sample cylinder which are placed in the water overflow tank and are mutually in threaded connection and fixed, a liquid level sensor is arranged in the upper testing sample cylinder, the circulating water supply device comprises a water tank, a water pumping device, a water inlet pipe communicated with the sample testing device and an overflow pipe communicated with the water tank, and the timing water flowmeter is arranged at the middle section of the overflow pipe. The water consumption required by the traditional test is reduced through the circulating water supply device, the tightness of the periphery of the permeable material is guaranteed through the upper test sample cylinder and the lower test sample cylinder which are mutually screwed and fixed, the condition that the tightness is guaranteed through material solidification is abandoned, and meanwhile, the test efficiency is improved through the fact that samples are rapidly disassembled for the next test.
Description
Technical Field
The utility model relates to the technical field of material water permeability test, in particular to a portable material water permeability coefficient test device.
Background
The pavement with water permeability is considered for the construction of the sponge city, and has good water permeability and air permeability, so that underground water can be filled in time, and the problems of urban waterlogging, ground subsidence and the like are effectively relieved; the porous structure has good sound absorption and noise reduction effects, and reduces traffic noise pollution generated by the past motor vehicles, thereby improving the living comfort of residents. And the heat exchange with air can be performed due to the good water permeability, so that the urban humidity is improved, and the urban heat island effect is effectively reduced.
At present, one of the performance indexes for evaluating the water permeability effect of a pavement structure is the water permeability coefficient. The sample to be tested is a cylindrical specimen with the diameter of 100mm and the height of 50mm, and can be obtained by a core drilling method or laboratory molding.
The prior water permeability coefficient testing device has the following problems when in use: the water used for testing one group of samples is excessive, so that water resources are seriously wasted; the manual accounting of the water outlet flow is needed, which is time-consuming and labor-consuming; poor tightness between the periphery of the sample and the wall of the device often causes overflow problems; when the adhesive is used for bonding the periphery of a sample and the wall of the device, the curing time is long, so that the tightness is ensured to be excellent, and the test time is long; the sample and the device wall are well adhered, are not easy to assemble and disassemble, and are inconvenient for the operation of testers. Therefore, it is necessary to develop a portable material water permeability coefficient tester which is simple and convenient to operate, high in testing efficiency and good in sealing performance, and enables testers to do necessary auxiliary work in the testing process.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to overcome the defects in the prior art, the water permeability coefficient testing device is simple and convenient to operate, high in testing efficiency and good in sealing performance.
The technical scheme adopted for solving the technical problems is as follows: a water permeability coefficient testing device comprises a sample testing device, a circulating water supply device and a timing water flowmeter,
the sample testing device comprises a overflow water tank, an upper testing sample cylinder and a lower testing sample cylinder which are arranged in the overflow water tank and are mutually screwed and fixed, a liquid level sensor is arranged in the upper testing sample cylinder,
the circulating water supply device comprises a water tank, a water pumping device, a water inlet pipe which is led into the sample testing device, and an overflow pipe which is communicated with the overflow water tank and the water tank,
the middle section of the overflow pipe is provided with a water flowmeter capable of timing.
Further, a water inlet communicated with the water inlet pipe is arranged on the upper test sample cylinder, the water inlet and the liquid level sensor are positioned on the same horizontal plane,
the lower test sample cylinder is provided with a metal clamp for fixing the sample, and the inner wall of the lower test sample cylinder is provided with a rubber material block for supporting the sample.
Further, the water pumping device comprises a water pump, a water pumping pipe connected with a water inlet of the water pump and a water discharging pipe connected with a water outlet of the water pump,
the water discharging pipe is communicated with the water discharging pipe, the water discharging pipe is communicated with the water inlet pipe, one end of the water discharging pipe is higher than the water inlet pipe, the water discharging pipe is inserted in the water inlet pipe,
the end part of the water pumping pipe extending into the water tank is provided with a funnel-shaped water pumping end.
Further, the timing water flowmeter, the water pump and the liquid level sensor are electrically connected with the control device. Recording the flow of water in unit time by a water flow meter capable of timing; whether water is pumped or not is controlled by a water pump; whether the water pump is required to be started for pumping water or not is controlled by whether the liquid level sensor is in contact with water or not. The PLC control can be realized through a simple program, and the PLC control method does not belong to the improvement of the program.
When the water pump is used, a sample to be tested is placed in the lower test sample cylinder and fixed by the clamp, meanwhile, the sample to be tested is assembled with the upper cylinder and placed in the overflow water tank, then the sensor is placed at a fixed position, the water pump is turned on, water pumping is started, water flow is regulated by the water pumping program controller when the water surface in the cylinder contacts the sensor, the sensor is kept in constant contact with the water surface, at the moment, the flow of water in 5min is recorded by the water flow meter, and the water permeability coefficient value of the test sample is obtained.
Further, the overflow water tank is provided with an overflow port higher than the upper end of the sample, one end of the overflow pipe is communicated with the overflow port, the other end of the overflow pipe is communicated with the water tank through a pipeline, and one end of the overflow pipe, which is communicated with the overflow port, is higher than the other end of the overflow pipe.
Further, the overflow pipe comprises two sections which are mutually inserted, and one section which is communicated with the overflow port is inserted into the other section.
Furthermore, the upper section of the side wall of the water tank is provided with a water inlet tank, a ventilation port is arranged above the water inlet tank, and a water level scale panel for controlling the upper limit and the lower limit of the water level in the water tank is arranged below the water inlet tank.
Furthermore, the upper test sample cylinder and the lower test sample cylinder are provided with screw splicing ports which are mutually matched to realize screw connection,
the upper test sample cylinder is internally provided with a fixing clamp for limiting the liquid level sensor.
Furthermore, the water tank is arranged in the storage device, a sample storage cabinet which is not mutually interfered with the water tank is also arranged in the storage device,
the bottom of the storage device is provided with a support, the sample testing device, the circulating water supply device and the timing water flow meter are arranged at the upper end of the storage device,
the water pump is arranged at the upper end of the storage device through the heightening platform, so that stable operation of the water pump is kept.
The beneficial effects of the utility model are as follows: the water consumption required by the traditional test is reduced through the circulating water supply device, the tightness of the periphery of the permeable material is guaranteed through the upper test sample cylinder and the lower test sample cylinder which are mutually screwed and fixed, the condition that the tightness is guaranteed through material solidification is abandoned, and meanwhile, the test efficiency is improved through the fact that samples are rapidly disassembled for the next test.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the lower test sample cylinder of the present utility model;
fig. 3 is a schematic view of the structure of the water outlet pipe and the water inlet pipe of the present utility model.
Reference numerals in the drawings: 1-liquid level sensor, 2-fixation clamp, 3-drain pipe, 4-outlet pipe, 5-water inlet, 6-inlet tube, 7-upper test sample cylinder, 8-controlling means, 9-overflow pipe, 10-overflow basin, 11-overflow mouth, 12-drinking-water pipe, 13-spiral splice mouth, 14-water pump, 15-metal fixture, 16-timing water flowmeter, 17-rubber material spacer block, 18-elevating platform, 19-lower test sample cylinder, 20-ventilation mouth, 21-inlet tank, 23-water level scale panel, 25-sample locker, 26-storing device, 27-pumping end, 28-support.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
A water permeability coefficient testing apparatus shown in fig. 1-3, comprising a sample testing device, a circulating water supply device and a timing water flowmeter 16,
the sample testing device comprises a overflow water tank 10, an upper testing sample cylinder 7 and a lower testing sample cylinder 19 which are arranged in the overflow water tank 10 and are mutually screwed and fixed, a liquid level sensor 1 is arranged in the upper testing sample cylinder 7,
the circulating water supply device comprises a water tank, a water pumping device, a water inlet pipe 6 which is led into the sample testing device, an overflow pipe 9 which is communicated with an overflow water tank 10 and the water tank,
a timing water flowmeter 16 is arranged at the middle section of the overflow pipe 9.
The upper test sample cylinder 7 is provided with a water inlet 5 communicated with a water inlet pipe 6, the water inlet 5 and the liquid level sensor 1 are positioned on the same horizontal plane,
the lower test sample cylinder 19 is externally provided with a metal clamp 15 for fixing a sample, and the inner wall of the lower test sample cylinder 19 is provided with a rubber material block 17 for supporting the sample.
The water pumping device comprises a water pump 14, a water pumping pipe 12 connected with a water inlet of the water pump and a water discharging pipe 3 connected with a water outlet of the water pump,
the water discharging pipe 3 is communicated with the water discharging pipe 4, the water discharging pipe 4 is communicated with the water inlet pipe 6, one end of the water discharging pipe 4 is higher than the water inlet pipe 6, the water discharging pipe 4 is inserted in the water inlet pipe 6,
the end of the water pumping pipe 12 extending into the water tank is provided with a funnel-shaped water pumping end 27.
The timing water flow meter 16, the water pump 14 and the liquid level sensor 1 are electrically connected to the control device 8. Recording the flow rate of water per unit time by a chronograph water flowmeter 16; whether water is pumped or not is controlled by the water pump 14; whether the water pump 14 needs to be started for pumping water or not is controlled by whether the liquid level sensor 1 is in contact with water or not. The PLC control can be realized through a simple program, and the PLC control method does not belong to the improvement of the program.
The overflow water tank 10 is provided with an overflow port 11 higher than the upper end of the sample, one end of the overflow pipe 9 is communicated with the overflow port 11, the other end of the overflow pipe 9 is communicated with the water tank through a pipeline, and one end of the overflow pipe 9, which is communicated with the overflow port 11, is higher than the other end.
The overflow pipe 9 comprises two sections which are mutually inserted, and one section which is communicated with the overflow port 11 is inserted into the other section.
The upper section of the side wall of the water tank is provided with a water inlet tank 21, a ventilation port 20 is arranged above the water inlet tank 21, and a water level scale panel 23 for controlling the upper limit and the lower limit of the water level in the water tank is arranged below the water inlet tank 21.
The upper test sample cylinder 7 and the lower test sample cylinder 19 are provided with screw spliced interfaces 13 which are matched with each other to realize screw connection,
the upper test sample cylinder 7 is internally provided with a fixing clamp 2 for limiting the liquid level sensor 1.
The water tank is arranged in the storage device 26, a sample storage cabinet 25 which is not mutually interfered with the water tank is also arranged in the storage device 26,
a support 28 is arranged at the bottom of the storage device 26, a sample testing device, a circulating water supply device and a timing water flowmeter 16 are arranged at the upper end of the storage device 26,
the water pump 14 is arranged at the upper end of the storage device 26 through the heightening platform 18, so that stable operation of the water pump 14 is maintained.
Before use, the mixture is molded into a cylinder test block with a certain height in a mold, the cylinder test block is molded by compaction or vibration, and then a demolding molding test sample is placed in a sample storage cabinet 25; laboratory panel forming drilling or in situ coring may also be used to obtain test samples that are placed in the sample lockers 25.
In use, the formed cylindrical test block is placed in the lower test sample cylinder 19 so that the bottom of the sample is completely contacted with the rubber material block 17, the sample is fixed by the sheet-like metal clamp 15 to ensure that the periphery of the sample is free from gaps with the cylinder wall, then the lower test sample cylinder 19 and the upper test sample cylinder 7 are connected into a whole by the raw material belt through the splicing opening 13 with a spiral structure, the sample cylinder is placed in the overflow water tank 10, the water outlet pipe 4 is inserted into the water inlet pipe 6, the liquid level sensor 1 is placed on a proper scale line by the fixing clamp 2, the power is turned on and the water pump 14 is started, so that water in the water tank flows into the sample testing cylinder from the water drain pipe 3 through the water outlet pipe 4 and the water inlet pipe 6 through the funnel-shaped water pumping end 27 and the water pumping pipe 12 through the water pump 14, when the plane of the water in the cylinder contacts the liquid level sensor 1, the water pump 12 stops pumping water, and when the horizontal plane is lower than the pointer height of the liquid level sensor 1, water supply is continued, therefore, the water pumping program control device 8 needs to be regulated in the test process to ensure the stability of the horizontal plane in the cylinder, the time and the water flow of the water flowmeter 16 can be cleared after the horizontal plane in the cylinder is stable for about 1min, the start key is pressed at the moment, the water flow of the water flowmeter can be recorded for 5min, and the water permeability coefficient of the tested sample material is calculated.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (9)
1. The utility model provides a coefficient of water permeability testing arrangement which characterized in that: comprises a sample testing device, a circulating water supply device and a timing water flowmeter (16),
the sample testing device comprises a overflow water tank (10), an upper testing sample cylinder (7) and a lower testing sample cylinder (19) which are arranged in the overflow water tank (10) and are mutually screwed and fixed, a liquid level sensor (1) is arranged in the upper testing sample cylinder (7),
the circulating water supply device comprises a water tank, a water pumping device, a water inlet pipe (6) which is led into the sample testing device, an overflow pipe (9) which is communicated with an overflow water tank (10) and the water tank,
the middle section of the overflow pipe (9) is provided with a timing water flowmeter (16).
2. The water permeability coefficient testing apparatus according to claim 1, wherein:
the upper test sample cylinder (7) is provided with a water inlet (5) communicated with a water inlet pipe (6), the water inlet (5) and the liquid level sensor (1) are positioned on the same horizontal plane,
the lower test sample cylinder (19) is provided with a metal clamp (15) for fixing a sample, and the inner wall of the lower test sample cylinder (19) is provided with a rubber material block (17) for supporting the sample.
3. The water permeability coefficient testing apparatus according to claim 1, wherein: the water pumping device comprises a water pump (14), a water pumping pipe (12) connected with a water inlet of the water pump, a water discharging pipe (3) connected with a water outlet of the water pump,
the water discharging pipe (3) is communicated with the water discharging pipe (4), the water discharging pipe (4) is communicated with the water inlet pipe (6), one end of the water discharging pipe (4) is higher than the water inlet pipe (6), the water discharging pipe (4) is inserted into the water inlet pipe (6),
the end part of the water pumping pipe (12) extending into the water tank is provided with a funnel-shaped water pumping end (27).
4. A water permeability coefficient testing apparatus according to claim 3, wherein: the timing water flowmeter (16), the water pump (14) and the liquid level sensor (1) are electrically connected with the control device (8).
5. The water permeability coefficient testing apparatus according to claim 1, wherein: the overflow trough (10) is provided with an overflow port (11) higher than the upper end of the sample, one end of the overflow pipe (9) is communicated with the overflow port (11), the other end of the overflow pipe is communicated with the water tank through a pipeline, and one end of the overflow pipe (9) communicated with the overflow port (11) is higher than the other end of the overflow pipe.
6. The water permeability coefficient testing apparatus according to claim 5, wherein: the overflow pipe (9) comprises two sections which are mutually inserted, and one section which is communicated with the overflow port (11) is inserted into the other section.
7. The water permeability coefficient testing apparatus according to claim 1, wherein: the upper section department of water tank lateral wall is equipped with intake box (21), and intake box (21) top is equipped with ventilative mouth (20), and intake box (21) below is equipped with water level scale panel (23) of the interior water level upper limit of control water tank and lower limit.
8. The water permeability coefficient testing apparatus according to claim 1, wherein: the upper test sample cylinder (7) and the lower test sample cylinder (19) are provided with screw splicing ports (13) which are mutually matched to realize screw connection,
the upper test sample cylinder (7) is internally provided with a fixing clamp (2) of the limit liquid level sensor (1).
9. A water permeability coefficient testing apparatus according to claim 3, wherein: the water tank is arranged in the storage device (26), a sample storage cabinet (25) which is not mutually interfered with the water tank is also arranged in the storage device (26),
the bottom of the storage device (26) is provided with a support (28), the sample testing device, the circulating water supply device and the timing water flowmeter (16) are arranged at the upper end of the storage device (26),
the water pump (14) is arranged at the upper end of the storage device (26) through the heightening platform (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321556275.4U CN219996837U (en) | 2023-06-19 | 2023-06-19 | Water permeability coefficient testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321556275.4U CN219996837U (en) | 2023-06-19 | 2023-06-19 | Water permeability coefficient testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219996837U true CN219996837U (en) | 2023-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321556275.4U Active CN219996837U (en) | 2023-06-19 | 2023-06-19 | Water permeability coefficient testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219996837U (en) |
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2023
- 2023-06-19 CN CN202321556275.4U patent/CN219996837U/en active Active
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