CN211718060U - Test system for testing seepage performance of water permeable material - Google Patents
Test system for testing seepage performance of water permeable material Download PDFInfo
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- CN211718060U CN211718060U CN202020206071.8U CN202020206071U CN211718060U CN 211718060 U CN211718060 U CN 211718060U CN 202020206071 U CN202020206071 U CN 202020206071U CN 211718060 U CN211718060 U CN 211718060U
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Abstract
The utility model discloses a test system for testing the seepage performance of a water permeable material, which comprises a seepage instrument, a high-pressure water injection system, a hydraulic pump station, a double-acting hydraulic cylinder, a water pressure sensor, a water flow sensor, a data recorder and a computer; injecting water into the double-acting hydraulic cylinder through a high-pressure water injection system, applying oil pressure to the double-acting hydraulic cylinder through a hydraulic pump station, and enabling the double-acting hydraulic cylinder to inject water into the seepage instrument so as to perform a seepage test, wherein a water pressure sensor and a water flow sensor feed detected water pressure and water flow back to a data recorder in real time for recording; and then adjusting the oil pressure and replacing the samples to obtain seepage test data of a plurality of samples under different pressures, and finally performing subsequent analysis on the seepage characteristics of the samples according to the test data. In addition the utility model discloses a seepage flow appearance has the characteristics that the leakproofness is good, also can guarantee going on of seepage flow test stability accuracy.
Description
Technical Field
The utility model relates to a test system of water permeability material specifically is a test system of test water permeability material seepage flow performance.
Background
With the advance of urbanization process, the urban ground is covered by buildings and concrete road surfaces, the concrete road surfaces block the intersection of surface water and underground water, and further a series of urbanization problems such as urban waterlogging, heat island effect and the like are caused. The requirements for the pervious concrete pavement are mainly reflected in the requirements for the strength and the permeability coefficient of the pervious concrete, and the strength and the seepage speed of the pervious concrete are mainly governed by the design of the proportion and the ratio in the pervious concrete. At present, experts and scholars at home and abroad also obtain some achievements on the research on the formulation and ratio design of the pervious concrete, but the formulation and ratio design of the pervious concrete is influenced by various conditions, such as the variety and gradation of coarse aggregate, the water cement ratio, the single-side concrete cement consumption and the like, and particularly the water cement ratio has great influence on the strength, porosity and permeability coefficient of the pervious concrete. Therefore, to study the performance of pervious concrete, tests of strength and permeability coefficient were conducted on each sample to find the optimum formulation. At present, a multifunctional electronic testing machine is mainly used for testing the strength; the existing water permeability coefficient test has various types, but the existing water permeability coefficient detection system has many problems in use, such as that detection data cannot be transmitted in real time, a seepage instrument cannot be guaranteed to have good air tightness in use, and seepage simulation under various different water pressures cannot be realized. Therefore, research on a seepage system capable of carrying out seepage tests and solving the problems of the existing system is a problem which needs to be solved urgently in the industry.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a test water permeability material seepage flow performance's test system can realize the seepage flow analogue test of a plurality of samples under multiple different water pressure under the prerequisite that the assurance gas tightness is good to research for follow-up sample seepage flow characteristic provides the data support.
In order to realize the purpose, the utility model discloses a technical scheme is: a test system for testing the seepage performance of a water permeable material comprises a seepage instrument, a high-pressure water injection system, a hydraulic pump station, a double-acting hydraulic cylinder, a water pressure sensor, a water flow sensor, a data recorder and a computer;
the seepage instrument comprises a bottom plate, a cylinder barrel, a cover plate and a short water inlet pipe, wherein the cylinder barrel is arranged on the upper part of the bottom plate, the cover plate is arranged on the upper part of the cylinder barrel, a plurality of mounting holes are formed in the bottom plate, the upper end and the lower end of the cylinder barrel and the cover plate, and the bottom plate and the lower end of the cylinder barrel are fixedly connected by penetrating through the mounting holes through a fixing assembly; the cover plate is fixedly connected with the upper end of the cylinder barrel through a fixing component penetrating through the mounting hole; the cylinder barrel, the bottom plate and the cover plate enclose a sample filling area, a water injection through hole is formed in the center of the cover plate, and a seepage groove is formed in the upper portion of the bottom plate; one end of the water inlet short pipe is hermetically connected with the upper end of the water injection through hole through a large nut and a composite washer;
the high-pressure water injection system comprises a high-pressure water pump, a reversing valve I, an overflow valve I, a pressure gauge I and a control water valve I, wherein the high-pressure water pump is connected with an inlet end of the reversing valve I, the pressure gauge I and the overflow valve I through pipelines, and an outlet end of the reversing valve I is connected with one end of the control water valve I through a pipeline;
one of the inner cavities of the double-acting hydraulic cylinder is a water filling area, and the other inner cavity of the double-acting hydraulic cylinder is a hydraulic oil filling area; a water filling area of the double-acting hydraulic cylinder is connected with the other end of the control water valve I and the other end of the water inlet short pipe through a pipeline, and a control water valve II, a water pressure sensor and a water flow sensor are arranged on the pipeline between the water filling area and the other end of the water inlet short pipe; the water pressure sensor and the water flow sensor respectively monitor the water pressure and the water flow of the pipeline in real time;
the hydraulic oil filling area of the double-acting hydraulic cylinder is connected with a hydraulic pump station through a pipeline and a hydraulic control valve I;
and the data recorder is electrically connected with the water pressure sensor and the water flow sensor and is used for receiving detection data fed back by the water pressure sensor and the water flow sensor and transmitting the detection data to the computer.
Further, the hydraulic pump station comprises a hydraulic pump, a cooling cylinder, a throttle valve, an overflow valve II, an oil pressure gauge, a pressure gauge II and a reversing valve II, the hydraulic pump is sequentially connected with one end of the cooling cylinder, the throttle valve and one end of the reversing valve II through pipelines, the overflow valve II and the pressure gauge II are connected to a pipeline between the reversing valve II and the throttle valve, the other end of the reversing valve II is connected with one end of the hydraulic control valve I and one end of the hydraulic control valve II, and the other end of the hydraulic control valve II is connected with the oil pressure; the oil pressure gauge is electrically connected with the data recorder.
Further, the fixing component consists of a bolt, a nut, a spring washer and a flat washer.
Furthermore, an O-shaped rubber sealing ring I is arranged at the joint of the bottom plate and the lower end of the cylinder barrel; and an O-shaped rubber sealing ring II is arranged at the joint of the cover plate and the upper end of the cylinder barrel.
Compared with the prior art, the utility model discloses a seepage flow appearance, high-pressure water injection system, hydraulic power unit, double-acting hydraulic cylinder, water pressure sensor, water flow sensor, the mode that data record appearance and computer combine together, through the water injection system of high pressure to double-acting hydraulic cylinder in water injection, then exert the oil pressure to double-acting hydraulic cylinder through hydraulic power unit, make double-acting hydraulic cylinder inject water into in the seepage flow appearance, thereby carry out the seepage flow test, water pressure sensor and water flow sensor feed back the water pressure and the discharge that detect to the data record appearance in real time; and then adjusting the oil pressure and replacing the samples to obtain seepage test data of a plurality of samples under different pressures, and finally performing subsequent analysis on the seepage characteristics of the samples according to the test data. In addition the utility model discloses a seepage flow appearance has the characteristics that the leakproofness is good, also can guarantee going on of seepage flow test stability accuracy. Therefore the utility model discloses can realize the seepage flow analogue test of a plurality of samples under multiple different water pressure under the prerequisite that the assurance gas tightness is good to provide data support for the research of follow-up sample seepage flow characteristic.
Drawings
FIG. 1 is an overall system diagram of the present invention;
FIG. 2 is a schematic view of the construction of the seepage apparatus of FIG. 1;
FIG. 3 is a schematic diagram of the construction of the double acting cylinder of FIG. 1;
FIG. 4 is a schematic diagram of the construction of the high pressure water injection system of FIG. 1;
fig. 5 is a schematic structural diagram of the hydraulic pump station in fig. 1.
In the figure: 1-seepage instrument; 2-a high pressure water pump; 3-a hydraulic pump station; 4-double acting hydraulic cylinder; 5-water pressure sensor; 6-water flow sensor; 7-a data recorder; 8-a computer; 9-water inlet short pipe; 10-a composite washer; 11-a bolt; 12-a nut; 13-a spring washer; 14-a flat washer; 15-a cylinder barrel; 16-a percolation groove; 17-a base plate; an 18-O type rubber sealing ring I; 19-sample filling interval; 20-O type rubber sealing ring II; 21-cover plate; 22-big nut; 23-a reversing valve I; 24-controlling a water valve II; 25-overflow valve I; 26, a pressure gauge I; 27-a water-filled zone; 28-hydraulic oil filling area; 29-a cooling cylinder; 30-a throttle valve; 31-controlling a water valve I; 32-hydraulic control valve I; 33-hydraulic pump.
Detailed Description
The present invention will be further explained below.
As shown in fig. 1 to 5, the utility model comprises a seepage meter 1, a high-pressure water injection system, a hydraulic pump station, a double-acting hydraulic cylinder 4, a water pressure sensor 5, a water flow sensor 6, a data recorder 7 and a computer 8;
the seepage meter 1 comprises a bottom plate 17, a cylinder barrel 15, a cover plate 21 and a short water inlet pipe 9, wherein the cylinder barrel 15 is arranged at the upper part of the bottom plate 17, the cover plate 21 is arranged at the upper part of the cylinder barrel 15, the bottom plate 17, the upper end and the lower end of the cylinder barrel 15 and the cover plate 21 are respectively provided with a plurality of mounting holes, and the bottom plate 17 and the lower end of the cylinder barrel 15 are fixedly connected by a fixing component penetrating through the mounting holes; the cover plate 21 is fixedly connected with the upper end of the cylinder barrel 15 through a fixing component penetrating through the mounting hole; the cylinder barrel 15, the bottom plate 17 and the cover plate 21 enclose a sample filling section 19, the center of the cover plate 21 is provided with a water injection through hole, and the upper part of the bottom plate 17 is provided with a seepage groove 16; one end of the water inlet short pipe 9 is hermetically connected with the upper end of the water injection through hole through a large nut 22 and a composite gasket 10;
the high-pressure water injection system comprises a high-pressure water pump 2, a reversing valve I23, an overflow valve I25, a pressure gauge I26 and a control water valve I31, wherein the high-pressure water pump 2 is connected with the inlet end of the reversing valve I23, the pressure gauge I26 and the overflow valve I25 through pipelines, and the outlet end of the reversing valve I23 is connected with one end of the control water valve I31 through a pipeline;
one of the inner cavities of the double-acting hydraulic cylinder 4 is a water filling area 27, and the other is a hydraulic oil filling area 28; the water filling area 27 of the double-acting hydraulic cylinder 4 is connected with the other end of the control water valve I31 and the other end of the water inlet short pipe 9 through a pipeline, and a control water valve II 24, a water pressure sensor 5 and a water flow sensor 6 are arranged on the pipeline between the water filling area 27 and the other end of the water inlet short pipe 9; the water pressure sensor 5 and the water flow sensor 6 respectively monitor the water pressure and the water flow of the pipeline in which the water pressure sensor and the water flow sensor are positioned in real time;
the hydraulic oil filling area 28 of the double-acting hydraulic cylinder 4 is connected with a hydraulic pump station through a pipeline and a hydraulic control valve I32;
and the data recorder 7 is electrically connected with the water pressure sensor 5 and the water flow sensor 6, and is used for receiving detection data fed back by the water pressure sensor 5 and the water flow sensor 6 and transmitting the detection data to the computer 8.
Wherein, the total height of the seepage apparatus 1 is 335 mm; the diameter of the upper part of the cover plate 21 is 220mm, the diameter of the lower part of the cover plate 21 is 120mm, the shape of the groove of the gasket of the cover plate 21 is that the upper edge of an isosceles trapezoid is 3.6mm, and the inclination angle of the side edge with the height of 1.97 is 3-5 degrees; the diameter of the cornice of the cylinder barrel 15 is 220mm, the diameter of the inner clearance is 120mm, and the diameter of the outer wall is 162 mm; the diameter of a bottom plate 17 is 220mm, a seepage groove 16 reserved in the middle is 30mm, the upper edge of a gasket groove of the bottom plate 17 is 3.6mm, and the height of the gasket groove is 1.97, and the inclination angle of the side edge is 3-5 degrees;
further, the hydraulic pump station comprises a hydraulic pump 33, a cooling cylinder 29, a throttle valve 30, an overflow valve II, an oil pressure gauge, a pressure gauge II and a reversing valve II, wherein the hydraulic pump 33 is sequentially connected with one end of the cooling cylinder 29, one end of the throttle valve 30 and one end of the reversing valve II through pipelines, the overflow valve II and the pressure gauge II are connected to a pipeline between the reversing valve II and the throttle valve 30, the other end of the reversing valve II is connected with one end of a hydraulic control valve I32 and one end of the hydraulic control valve II, and the other end of the hydraulic control valve II is connected; the oil pressure gauge is electrically connected with the data recorder.
Further, the fixing assembly is composed of a bolt 11, a nut 12, a spring washer 13 and a flat washer 14.
Furthermore, an O-shaped rubber sealing ring I18 is arranged at the joint of the bottom plate 17 and the lower end of the cylinder barrel 15; and an O-shaped rubber sealing ring II 20 is arranged at the joint of the cover plate 21 and the upper end of the cylinder 15.
Adopt the utility model discloses the concrete step that tests does:
A. according to the volume of the sample filling interval 19, a plurality of pervious concrete samples with corresponding volumes are manufactured;
B. placing a sample in the step A into a sample filling interval 19, injecting melted wax into a gap between the sample and the inner wall of the cylinder barrel 15 until the wax is filled to a position 20mm away from the top end of the sample, stopping injecting, and after the wax is solidified, coating the upper part of the wax with a sealant for sealing; the seepage data detected by the water pressure sensor 5 and the water flow sensor 6 are not accurate because water directly flows to the bottom plate 17 from a gap between the sample and the inner wall of the cylinder 15 without passing through the sample during the seepage test;
C. the cover plate 21 is connected with the upper end of the cylinder barrel 15 in a sealing way through the fixing component, and after the sealing performance is detected, one end of the water inlet short pipe 9 is connected with the upper end of the water injection through hole in a sealing way through the large nut 22 and the composite washer 10;
D. before the seepage test is carried out, firstly opening a control water valve I31, closing a control water valve II 24, simultaneously opening a hydraulic control valve I32 and a hydraulic control valve II, starting a high-pressure water pump 2 and adjusting the control direction of a reversing valve I23, enabling high-pressure water to sequentially pass through the reversing valve I23 and the control water valve I31 to enter a water filling area 27 of a double-acting hydraulic cylinder 4, pushing a piston of the double-acting hydraulic cylinder 4 to move to a hydraulic oil filling area 28, enabling hydraulic oil in the hydraulic oil filling area 28 to flow back to a hydraulic oil tank through the hydraulic control valve I32 and the reversing valve II, and accordingly increasing the water filling area 27 and the compressed hydraulic oil filling area 28; stopping the high-pressure water pump 2 until the water filling area 27 reaches the maximum volume, and closing the control water valve I31;
E. adjusting the direction of the reversing valve II, setting an oil pressure value when performing a seepage test, starting the hydraulic pump 33 and opening the control water valve II 24, enabling hydraulic oil to enter a hydraulic oil filling area 28 of the double-acting hydraulic cylinder 4 from the hydraulic pump 33 through the reversing valve II and the hydraulic control valve I32, observing an oil pressure gauge to reach the set oil pressure value, pushing a piston of the double-acting hydraulic cylinder 4 to apply pressure to the water filling area 27 by the oil pressure value, enabling water in the water filling area 27 to enter a sample filling area 19 of the seepage instrument 1 through the control water valve II 24, the water inlet short pipe 9 and the water injection through hole in sequence after being pressurized, and enabling the water to start to seep in a sample; at the moment, the water pressure sensor 5 and the water flow sensor 6 respectively monitor the water pressure and the water flow in the pipeline in real time, and feed back to the data recorder 7 for recording until the seepage test under the oil pressure value is completed, the hydraulic pump 33 is stopped, and the direction of the control water valve II 24 and the direction of the adjusting reversing valve II are closed;
F. resetting the oil pressure value, repeating the steps D and E, and completing the seepage test again; the sample is circulated for many times, so that the seepage test of the sample under different pressures is realized; transmitting the seepage data recorded by the data recorder 7 to the computer 8 for subsequent analysis;
G. selecting a pervious concrete sample from the step A, and repeating the steps B to F to finish the seepage test of the sample under different pressures; selecting for many times to obtain seepage test data of a plurality of samples under different pressures; and finally, carrying out subsequent analysis on the seepage characteristics of the sample according to the test data.
Claims (4)
1. A test system for testing the seepage performance of a water permeable material is characterized by comprising a seepage instrument, a high-pressure water injection system, a hydraulic pump station, a double-acting hydraulic cylinder, a water pressure sensor, a water flow sensor, a data recorder and a computer;
the seepage instrument comprises a bottom plate, a cylinder barrel, a cover plate and a short water inlet pipe, wherein the cylinder barrel is arranged on the upper part of the bottom plate, the cover plate is arranged on the upper part of the cylinder barrel, a plurality of mounting holes are formed in the bottom plate, the upper end and the lower end of the cylinder barrel and the cover plate, and the bottom plate and the lower end of the cylinder barrel are fixedly connected by penetrating through the mounting holes through a fixing assembly; the cover plate is fixedly connected with the upper end of the cylinder barrel through a fixing component penetrating through the mounting hole; the cylinder barrel, the bottom plate and the cover plate enclose a sample filling area, a water injection through hole is formed in the center of the cover plate, and a seepage groove is formed in the upper portion of the bottom plate; one end of the water inlet short pipe is hermetically connected with the upper end of the water injection through hole through a large nut and a composite washer;
the high-pressure water injection system comprises a high-pressure water pump, a reversing valve I, an overflow valve I, a pressure gauge I and a control water valve I, wherein the high-pressure water pump is connected with an inlet end of the reversing valve I, the pressure gauge I and the overflow valve I through pipelines, and an outlet end of the reversing valve I is connected with one end of the control water valve I through a pipeline;
one of the inner cavities of the double-acting hydraulic cylinder is a water filling area, and the other inner cavity of the double-acting hydraulic cylinder is a hydraulic oil filling area; a water filling area of the double-acting hydraulic cylinder is connected with the other end of the control water valve I and the other end of the water inlet short pipe through a pipeline, and a control water valve II, a water pressure sensor and a water flow sensor are arranged on the pipeline between the water filling area and the other end of the water inlet short pipe; the water pressure sensor and the water flow sensor respectively monitor the water pressure and the water flow of the pipeline in real time;
the hydraulic oil filling area of the double-acting hydraulic cylinder is connected with a hydraulic pump station through a pipeline and a hydraulic control valve I;
and the data recorder is electrically connected with the water pressure sensor and the water flow sensor and is used for receiving detection data fed back by the water pressure sensor and the water flow sensor and transmitting the detection data to the computer.
2. The test system for testing the seepage performance of the water permeable material according to claim 1, wherein the hydraulic pump station comprises a hydraulic pump, a cooling cylinder, a throttle valve, an overflow valve II, an oil pressure gauge, a pressure gauge II and a reversing valve II, the hydraulic pump is sequentially connected with one end of the cooling cylinder, the throttle valve and one end of the reversing valve II through pipelines, the overflow valve II and the pressure gauge II are connected on a pipeline between the reversing valve II and the throttle valve, the other end of the reversing valve II is connected with one end of the hydraulic control valve I and one end of the hydraulic control valve II, and the other end of the hydraulic control valve II is connected with the oil pressure gauge; the oil pressure gauge is electrically connected with the data recorder.
3. The system of claim 1, wherein the fixing assembly comprises a bolt, a nut, a spring washer and a flat washer.
4. The test system for testing the seepage performance of the water permeable material according to claim 1, wherein an O-shaped rubber sealing ring I is arranged at the joint of the bottom plate and the lower end of the cylinder barrel; and an O-shaped rubber sealing ring II is arranged at the joint of the cover plate and the upper end of the cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020206071.8U CN211718060U (en) | 2020-02-25 | 2020-02-25 | Test system for testing seepage performance of water permeable material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020206071.8U CN211718060U (en) | 2020-02-25 | 2020-02-25 | Test system for testing seepage performance of water permeable material |
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| Publication Number | Publication Date |
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| CN211718060U true CN211718060U (en) | 2020-10-20 |
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| CN202020206071.8U Expired - Fee Related CN211718060U (en) | 2020-02-25 | 2020-02-25 | Test system for testing seepage performance of water permeable material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113495048A (en) * | 2021-09-08 | 2021-10-12 | 南通华兴石油仪器有限公司 | High-pressure seepage test device |
-
2020
- 2020-02-25 CN CN202020206071.8U patent/CN211718060U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113495048A (en) * | 2021-09-08 | 2021-10-12 | 南通华兴石油仪器有限公司 | High-pressure seepage test device |
| CN113495048B (en) * | 2021-09-08 | 2021-11-16 | 南通华兴石油仪器有限公司 | High-pressure seepage test device |
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