CN201666865U - Water permeability detection device for permeable material product - Google Patents
Water permeability detection device for permeable material product Download PDFInfo
- Publication number
- CN201666865U CN201666865U CN2010201310074U CN201020131007U CN201666865U CN 201666865 U CN201666865 U CN 201666865U CN 2010201310074 U CN2010201310074 U CN 2010201310074U CN 201020131007 U CN201020131007 U CN 201020131007U CN 201666865 U CN201666865 U CN 201666865U
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- water
- pick
- seepy material
- material goods
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 239000000463 material Substances 0.000 title claims abstract description 76
- 230000035699 permeability Effects 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 title abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims description 24
- 238000005070 sampling Methods 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 23
- 230000002572 peristaltic effect Effects 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 8
- 230000001939 inductive effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 abstract description 5
- 239000011449 brick Substances 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 8
- 238000004088 simulation Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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Abstract
The utility model discloses a water permeability detection device for a permeable material product, the device comprises: a water spray device; a water supply device, which is connected to the water spray device via a water supply pipe; a supporting device, the permeable material product is placed on the supporting device; a liquid level collecting device, which is disposed above the permeable material products; and a controlling system, which is connected to the water supply device and the liquid level collecting device. The water permeability detection device in the utility model, via detecting water state on the surface of the permeable material product in the state of simulating natural rainfall, obtains the time when the permeable material product reaches the state of the maximum permeable limit, obtains permeable material products to reach the outflow of the maximum permeable limit and the maximum permeable rate, and is capable of visually detecting the water permeability of the permeable material product.
Description
Technical field
The utility model relates to a kind of water permeability pick-up unit, relates in particular to a kind of water permeability pick-up unit that is used for the seepy material goods.
Background technology
Hard surface is when precipitation, and rainwater is blocked fully to phreatic replenishing, and is relying on the city of underground water as the drinking water source, can make the underground water table of decline be difficult to go up; And being lost to drainage pipeline from the road surface, rainwater drains. make the city face of land drying that becomes, increased the weight of the city raised dust pollution, also can bring very big difficulty to greening.If rainwater deposits on the road surface, can cause traffic jam on the one hand, increase the weight of the pollution of automotive emission, on the other hand, can dissolve in a large amount of urban pollutants during the rainwater crossing current. as heavy metal Tyte Wear thing, the house refuse of motor vehicle emission, the agricultural chemicals that spray on dust on the building ground, meadow etc. directly is discharged in the local river, pollutes.Secondly. air-locked road surface is difficult to carry out the exchange of heat, moisture with air, lacks the regulating power to urban surface temperature, humidity, and aggravation " heat island phenomenon " has also increased the energy resource consumption in city simultaneously.But but permeable brick has the advantage of intensity height, easy coloring back washing and impurity screening and tool gas penetration potential; Be applicable to pavement, ramp, cycle track and edge of pool, the having wide range of applications of permeable brick.
At present, in the prior art, most water penetrating power of testing the seepy material goods under certain pressure head according to Darcy's law, however the device that this method adopts can not the water penetrating power of exosyndrome material under no pressure head (rainfall) state.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of water permeability pick-up unit of seepy material goods, to solve one type of prior art syringe can not detect its water permeability under seepy material goods state of nature defective.
For achieving the above object, the utility model proposes a kind of pick-up unit, be used to detect the water permeability of seepy material goods, comprising: a water injector is used for to described seepy material goods water spray; One water supply installation, described water supply installation is connected by hydraulic pipeline with described water injector; One bracing or strutting arrangement, described seepy material goods place on the described bracing or strutting arrangement; One fluid level sampling device is arranged at the top of described seepy material goods; And a control system, be electrically connected with described water supply installation and described fluid level sampling device.
Wherein, described water injector has a tabular shower nozzle.
Wherein, the area of described tabular shower nozzle is less than the area of described seepy material goods.
Wherein, described water supply installation is selected from plunger type metering pump, peristaltic pump or Electromagnetic diaphragm metering pump.
Wherein, described plunger type metering pump, peristaltic pump or Electromagnetic diaphragm metering pump realize that by the control of described control system the linearity of discharge increases.
Wherein, also comprise a tank, the position of corresponding described water injector is arranged at described water injector below.
Wherein, described plunger type metering pump, described peristaltic pump or described Electromagnetic diaphragm metering pump are communicated with described tank by hydraulic pipeline.
Wherein, described fluid level sampling device is selected from infrared light inductive probe, capacitance level transducer, contact liquid level sensor or laser liquid-level sensor.
Wherein, also comprise the cover that blocks water, be arranged under the water injector and with described seepy material goods upper surface sealing, be used to prevent that the water of described seepy material product surface from flowing away.
Wherein, described bracing or strutting arrangement is the chamber wall of described tank, perhaps described bracing or strutting arrangement comprises supporter, bracing frame and leveling nut, described supporter is arranged at the top of described water storage device, support frame as described above supports described supporter, and the support frame as described above bottom has a leveling nut respectively in the position at the described supporter of correspondence two ends, with the described supporter of leveling.
Wherein, described control system comprises receiving element, judging unit, computing unit and display unit, described fluid level sampling device, described receiving element, described judging unit and described water supply installation are electrically connected in proper order, and described receiving element, described computing unit and described display unit are electrically connected in proper order.
Wherein, the described cover that blocks water adopts rubber ring seal, metal frame on-load pressure.
Technique scheme of the present utility model has following beneficial effect compared to existing technology:
(1) water permeability pick-up unit of the present utility model, obtain state that the seepy material goods reach maximum permeable limit constantly by the ponding situation that detects the seepy material product surface, and water flow and maximum permeation rate when obtaining the seepy material goods and reaching maximum permeable limit.Thereby can detect the water permeability of seepy material goods intuitively.
(2) the utility model water permeability pick-up unit can detect seepy material goods permeance property to water under the condition of simulation precipitation at simulating nature precipitation state to seepy material goods trickle.
(3) adopt tabular shower nozzle simulating nature precipitation state in the utility model water permeability pick-up unit, and the area of tabular shower nozzle base plate and seepy material goods is basic identical, can guarantee that whole seepy material goods receive simulation precipitation uniformly.
(4) the utility model water permeability pick-up unit adopts the infrared light inductive probe as fluid level sampling device, and its detection efficiency height is measured accurately.
(5) be provided with the cover that blocks water for reaching liquid level ponding in the utility model water permeability pick-up unit, adopt rubber ring seal, metal frame on-load pressure, sample generally need not cut out, and convenient test is quick.
Description of drawings
Fig. 1 is the structural representation of seepy material goods water permeability pick-up unit of the present utility model;
Fig. 2 is the control principle synoptic diagram of the control system of the utility model one preferred embodiment;
Fig. 3 is flow of the present utility model and time chart.
Wherein, Reference numeral:
1, water injector 2, water supply installation
3, tank 4, supporter
5, fluid level sampling device 6, control system
7, seepy material goods 8, stop water
9, bracing frame 10, receiving element
11, leveling nut 20, judging unit
30, computing unit 50, display unit
V
L---maximum permeation rate
V
D---volume pump flow velocity when the liquid level collection is reported to the police
V "---flow speedup (acceleration)
S---run-off (the surface area water yield)
T1---the time when reaching maximum permeation rate
T2---liquid level acquisition system time of fire alarming
Embodiment
Water permeability pick-up unit of the present utility model is by detecting the ponding situation of seepy material product surface, obtain the state moment that the seepy material goods reach maximum permeable limit, and then characterize the water permeability of seepy material goods by the water flow situation of this moment.
Fig. 1 is the structural representation of seepy material goods water permeability pick-up unit of the present utility model, as shown in Figure 1, this pick-up unit mainly comprises: water injector 1, water supply installation 2, tank 3, bracing or strutting arrangement, fluid level sampling device 5 and control system 6, described water injector 1 is used for to seepy material goods 7 spray simulation rainwater, and described water supply installation 2 and described water injector 1 are connected by hydraulic pipeline; The position of described tank 3 corresponding described water injectors 1 is arranged at described water injector 1 below, is used to receive the water through the seepy material goods; Described seepy material goods 7 place on the described bracing or strutting arrangement; Described fluid level sampling device 5 is arranged at described seepy material goods 7 tops, is used for detecting the ponding situation of seepy material goods upper surface; And described control system 6 is electrically connected with described water supply installation 2 and described fluid level sampling device 5.
Wherein, in present embodiment, also comprise a stop water 8, be arranged at the top of described seepy material goods, be used to prevent that the water of described seepy material product surface from flowing away, described stop water is preferably the cover that blocks water, and is arranged under the water injector and with described seepy material goods upper surface to seal.And preferably, the described cover bottom that blocks water adds rubber seal, and the weightening finish of upper metal frame realizes the excellent sealing with seepy material.In addition, described fluid level sampling device 5 preferable being arranged on the described cover that blocks water.
Wherein, preferably, described bracing or strutting arrangement is the chamber wall of described tank, described seepy material goods directly place on the described tank, perhaps described bracing or strutting arrangement comprises supporter 4, bracing frame 9 and leveling nut 11, described supporter 4 is arranged at the top of described water storage device 3, support frame as described above 9 supports described supporter 4, and support frame as described above 9 bottoms have a leveling nut 11 respectively in the position at the described supporter of correspondence 4 two ends, with the described supporter 4 of leveling, make described seepy material goods 7 surface levels.And in the present embodiment, described bracing or strutting arrangement 4 also is used to support water injector 1.
And preferably, described water injector 1 has the tabular shower nozzle, and the area of described tabular shower nozzle is slightly less than the area of described seepy material goods.
And described control system is preferably the PLC controller.Described water supply installation 2 is the programmed control volume pump, by control system 6 (PLC) control of conversion device, realizes that the linearity of discharge increases.Flow value is by obtaining by control system 6 (PLC) calculating pump stroke and frequency.Also can obtain by installing electromagnetic flowmeter additional.
Preferably, described programmed control volume pump is selected from plunger type metering pump, peristaltic pump or Electromagnetic diaphragm metering pump.Wherein, described plunger type metering pump has the variable-frequency motor (not shown), and control system 6 (PLC) is controlled its frequency converter frequency, and frequency converter acts on the variable-frequency motor of plunger type metering pump, realize the change of program of variable-frequency motor rotating speed, thereby the linearity of metering discharge increases.If the employing electromagnetic dosing pump is then regulated its a-c cycle by PLC, realize the number of strokes of unit interval, increase to realize that flow is linear.
And described plunger type metering pump, described peristaltic pump or described Electromagnetic diaphragm metering pump are communicated with described tank 3 by hydraulic pipeline, so as by pump water in the described tank 3 to described water injector 1.
And, fluid level sampling device 5 preferable infrared light inductive probe, capacitance level transducer, contact liquid level sensor or the laser liquid-level sensors of being selected from described in the utility model.Described infrared light inductive probe, capacitance level transducer, contact liquid level sensor or laser liquid-level sensor are used to gather the ponding liquid level that the seepy material product surface forms.Wherein, described infrared light inductive probe is by judging whether to be cut off light path observation seepy material goods top surface area water depth situation by ponding.
And Fig. 2 is the control principle synoptic diagram of the control system of the utility model one preferred embodiment, and as shown in Figure 2, control system 6 comprises receiving element 10, judging unit 20, computing unit 30 and display unit 50.Wherein, fluid level sampling device 5 is electrically connected with receiving element 10, give receiving element 10 with sensing signal transmission, receiving element 10 passes to judging unit 20 and computing unit 30 respectively with the sensing signal that receives, after judging unit 20 judgements receive signal, to water supply installation 2 output stop signals, water supply installation 2 stops to supply water.And described computing unit 30 calculates the maximum permeation rate and the discharge of described seepy material goods, and described maximum permeation rate and discharge are flowed to display unit 50.Display unit 50 shows this maximum permeation rate, and shows the discharge in this moment constantly.
Fig. 3 is flow of the present utility model and time chart, as shown in Figure 3, and wherein:
V
L---maximum permeation rate (ml/s)
V
D---volume pump flow velocity (ml/s) when the liquid level collection is reported to the police
V "---flow speedup (acceleration) (ml/s
2)
S---run-off (the surface area water yield)
T1---the time (s) when reaching maximum permeation rate
T2---liquid level acquisition system time of fire alarming (s)
S is that flow velocity reaches the maximum permeation rate of permeable brick and rises to the liquid level acquisition system brick face diameter flow in the time of ending of reporting to the police, and its computing formula is:
S＝0.5×V″×(T2-T1)
2………………………(1)
Maximum permeation rate V
LComputing formula is:
V
L＝V
D-(T2-T1)×V″………………………(2)
By known S, V
DValue and (1)～(2) can calculate permeable swallowing-capacity V
L
V
L＝V
D-(2S×V″)
1/2……………………………(3)
Wherein, S can calculate (being water accumulating volume) with the acquisition zone area, flow speedup V by the specified warning height of liquid level collector " be setting value, V
DCan be obtained by control system 6 (PLC) calculating pump stroke and frequency, and flow to computing unit 30, computing unit 30 calculates V by formula (3)
L
In addition, by above-mentioned detection device, the water permeability that the present invention can carry out the seepy material goods detects, and its detection method may further comprise the steps:
Step 1: described seepy material goods 7 are placed on the bracing or strutting arrangement, and make described seepy material goods 7 surface levels;
Step 2: open control system 6, water supply installation 2 provides the water source to water injector 1 under the control of control system 6, and by water injector 1 to seepy material goods 7 surface sprinklings;
Step 3: by the surface level of the described seepy material goods 7 of fluid level sampling device 5 sensings, and fluid level sampling device 5 is given control system 6 with sensing signal transmission, after control system 6 receives described sensing signal, to water supply installation 2 output stop signals, and show current value and/or the permeation rate value that flows through this water supply installation 2.
Wherein, in step 3, when described seepy material goods 7 surface level reached a setting height, described fluid level sampling device 5 was reported to the police.Described setting height is 2～20 millimeters, is preferably 5～10 millimeters.And described fluid level sampling device 5 is infrared light inductive probe, capacitance level transducer, contact liquid level sensor or laser liquid-level sensor.
And, in step 3, fluid level sampling device 5 is given sensing signal transmission the receiving element 10 of control system 6, receiving element 10 passes to judging unit 20 and computing unit 30 respectively with the sensing signal that receives, after judging unit 20 judgements receive signal, to water supply installation 2 output stop signals, water supply installation 2 stops to supply water.And described computing unit calculates the maximum permeation rate and the discharge of described seepy material goods, and described maximum permeation rate and discharge are flowed to display unit.
And, in step 1, described bracing or strutting arrangement is the chamber wall of described tank, described seepy material goods place on the chamber wall of described tank, perhaps described bracing or strutting arrangement comprises supporter 4, bracing frame 9 and leveling nut 11, by regulating the leveling nut 11 of described bracing or strutting arrangement, make supporter 4 levels of described bracing or strutting arrangement, so that seepy material goods 7 surface levels.
And, before step 2, also be included in the cover that blocks water is set under the water injector, and the described cover that blocks water is sealed with described seepy material goods upper surface, be used to prevent that the water on described seepy material goods 7 surfaces from flowing away, to reach described seepy material goods liquid level ponding.
And described water supply installation 2 is preferably plunger type metering pump, peristaltic pump or Electromagnetic diaphragm metering pump, and described plunger type metering pump, peristaltic pump or Electromagnetic diaphragm metering pump realize that by described control system 6 control of conversion devices the linearity of discharge increases.And described plunger type metering pump, described peristaltic pump or described Electromagnetic diaphragm metering pump are communicated with described tank 3 by hydraulic pipeline, so that the water in the described tank 3 is supplied with described water injector 1.
Embodiment
At first, be preferably deionized water with adding a certain amount of water source in the tank 5.Then,,, place the top of the supporter 4 of bracing or strutting arrangement, regulate the upper surface level of leveling nut 11 to the seepy material goods as permeable brick with the seepy material goods.The whole marginal position setting of the seepy material goods 7 tops cover that blocks water, and make described block water cover and described seepy material goods upper surface sealing.Afterwards, connect control system 6 power supplys, click begins to measure, and by the control of control system 6, progressively increases the discharge of volume pump, and makes discharge be linear increase.When discharge during greater than the critical permeation rate of permeable brick, the brick surface forms runoff, liquid level raises, after liquid level arrived certain altitude, fluid level sampling device 5 was reported to the police, and the signal that control system 6 receives fluid level sampling device 5 stops volume pump 2, and, control system 6 is gathered flow value this moment, calculates maximum permeation rate by curve fitting, and shows the discharge of this moment and the permeation rate of permeable brick.
The utility model is because the tabular shower nozzle that adopts simulating nature precipitation, can detect seepy material goods permeance property to water under the condition of simulation precipitation to seepy material goods trickle.The area of the base plate of described tabular shower nozzle and seepy material goods is basic identical, can guarantee that whole seepy material goods receive simulation precipitation uniformly.And by control system, volume pump and fluid level sampling device, can be automatically and detect the water permeability of seepy material goods intuitively.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (10)
1. pick-up unit is used to detect the water permeability of seepy material goods, it is characterized in that, comprising:
One water injector;
One water supply installation, described water supply installation is connected by hydraulic pipeline with described water injector;
One bracing or strutting arrangement, described seepy material goods place on the described bracing or strutting arrangement;
One fluid level sampling device is arranged at the top of described seepy material goods; And
One control system is electrically connected with described water supply installation and described fluid level sampling device.
2. pick-up unit according to claim 1 is characterized in that, described water injector has a tabular shower nozzle.
3. pick-up unit according to claim 2 is characterized in that the area of described tabular shower nozzle is less than the area of described seepy material goods.
4. pick-up unit according to claim 1 is characterized in that described water supply installation is selected from plunger type metering pump, peristaltic pump or Electromagnetic diaphragm metering pump.
5. pick-up unit according to claim 4 is characterized in that, also comprises a tank, and the position of corresponding described water injector is arranged at described water injector below.
6. pick-up unit according to claim 5 is characterized in that, described plunger type metering pump, described peristaltic pump or described Electromagnetic diaphragm metering pump are communicated with described tank by hydraulic pipeline.
7. pick-up unit according to claim 1 is characterized in that, described fluid level sampling device is selected from infrared light inductive probe, capacitance level transducer, contact liquid level sensor or laser liquid-level sensor.
8. pick-up unit according to claim 1 is characterized in that, also comprises the cover that blocks water, be arranged under the water injector and with described seepy material goods upper surface sealing.
9. pick-up unit according to claim 5, it is characterized in that, described bracing or strutting arrangement is the chamber wall of described tank, perhaps described bracing or strutting arrangement comprises supporter, bracing frame and leveling nut, described supporter is arranged at the top of described water storage device, support frame as described above supports described supporter, and the support frame as described above bottom has a leveling nut respectively in the position at the described supporter of correspondence two ends.
10. pick-up unit according to claim 1, it is characterized in that, described control system comprises receiving element, judging unit, computing unit and display unit, described fluid level sampling device, described receiving element, described judging unit and described water supply installation are electrically connected in proper order, and described receiving element, described computing unit and described display unit are electrically connected in proper order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201310074U CN201666865U (en) | 2010-03-11 | 2010-03-11 | Water permeability detection device for permeable material product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201310074U CN201666865U (en) | 2010-03-11 | 2010-03-11 | Water permeability detection device for permeable material product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201666865U true CN201666865U (en) | 2010-12-08 |
Family
ID=43267824
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201310074U Expired - Lifetime CN201666865U (en) | 2010-03-11 | 2010-03-11 | Water permeability detection device for permeable material product |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192869A (en) * | 2010-03-11 | 2011-09-21 | 北京仁创科技集团有限公司 | Apparatus and method for detecting permeable performance of permeable material product |
| CN103604734A (en) * | 2013-11-04 | 2014-02-26 | 台州学院 | Rain-intensity-controllable unsaturated soil rainwater infiltration simulation system |
| CN104020278A (en) * | 2014-06-25 | 2014-09-03 | 北京建筑大学 | Water purification evaluation method of OGFC (open graded friction course) mixed material on rainfall and device for simulating rainfall |
| CN104677800A (en) * | 2015-02-03 | 2015-06-03 | 云南省交通规划设计研究院 | Simulated rainfall pattern macro-porous pavement water drainage capacity testing equipment and method |
| CN106198347A (en) * | 2016-07-11 | 2016-12-07 | 重庆大学 | Rock seepage rate Auto-Test System and method of testing |
| CN107607455A (en) * | 2017-08-26 | 2018-01-19 | 上海曼斐电器贸易有限公司 | A kind of seepage velocity tests water storage device |
| CN112730199A (en) * | 2021-02-01 | 2021-04-30 | 温州市市政工程建设开发公司 | Water permeability detection device and method for permeable asphalt concrete |
-
2010
- 2010-03-11 CN CN2010201310074U patent/CN201666865U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192869A (en) * | 2010-03-11 | 2011-09-21 | 北京仁创科技集团有限公司 | Apparatus and method for detecting permeable performance of permeable material product |
| CN103604734A (en) * | 2013-11-04 | 2014-02-26 | 台州学院 | Rain-intensity-controllable unsaturated soil rainwater infiltration simulation system |
| CN104020278A (en) * | 2014-06-25 | 2014-09-03 | 北京建筑大学 | Water purification evaluation method of OGFC (open graded friction course) mixed material on rainfall and device for simulating rainfall |
| CN104020278B (en) * | 2014-06-25 | 2016-08-17 | 北京建筑大学 | OGFC compound is to the water purification evaluation methodology of rainfall and device |
| CN104677800A (en) * | 2015-02-03 | 2015-06-03 | 云南省交通规划设计研究院 | Simulated rainfall pattern macro-porous pavement water drainage capacity testing equipment and method |
| CN106198347A (en) * | 2016-07-11 | 2016-12-07 | 重庆大学 | Rock seepage rate Auto-Test System and method of testing |
| CN106198347B (en) * | 2016-07-11 | 2018-12-18 | 重庆大学 | Rock seepage rate Auto-Test System and test method |
| CN107607455A (en) * | 2017-08-26 | 2018-01-19 | 上海曼斐电器贸易有限公司 | A kind of seepage velocity tests water storage device |
| CN112730199A (en) * | 2021-02-01 | 2021-04-30 | 温州市市政工程建设开发公司 | Water permeability detection device and method for permeable asphalt concrete |
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Address after: 100085 room B, block B509, Jiahua building, No. 9, 3rd Street, Beijing, Haidian District Patentee after: Beijing Rechsand Ecological Environment Protection Science and Technology Co., Ltd. Address before: 100085 room B, block B509, Jiahua building, No. 9, 3rd Street, Beijing, Haidian District Patentee before: BEIJING RECHSAND ECOLOGICAL ENVIRONMENT PROTECTION SCIENCE & TECHNOLOGY CO., LTD. |
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Address after: 246600, No. 1, general road, Yuexi Economic Development Zone, Anqing, Anhui Patentee after: Anhui Renchuang ecological environmental Polytron Technologies Inc Address before: 100085 room B, block B509, Jiahua building, No. 9, 3rd Street, Beijing, Haidian District Patentee before: Beijing Rechsand Ecological Environment Protection Science and Technology Co., Ltd. |
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Address after: 246600, No. 1, general road, Yuexi Economic Development Zone, Anqing, Anhui Patentee after: Renchuang ecological environmental protection Polytron Technologies Inc Address before: 246600, No. 1, general road, Yuexi Economic Development Zone, Anqing, Anhui Patentee before: Anhui Renchuang ecological environmental Polytron Technologies Inc |
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