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A multi-functional linkage device integrating time-sampling of sewage and testing of water permeability coefficient and its working method

A technology of water permeability coefficient and linkage device, applied in sampling device, measuring device, permeability/surface area analysis, etc., can solve problems such as affecting data accuracy, wasting water resources, and large pores in test blocks.

Active Publication Date: 2017-05-17
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the stage of laboratory research, we tested the water permeability of the test block with reference to industry standards, but found many problems, such as directly using tap water to supply water, the water pressure is not easy to stabilize, which affects the accuracy of the data; using a steel ruler to measure the water level difference , because the water level fluctuates, it is not easy to measure accurately; after the measurement is completed, the water flowing out of the overflow port on the water cylinder and the overflow tank on the overflow tank will be poured out directly. If the test block has large pores or a large number, it will waste a lot of water. water resources etc.

Method used

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  • A multi-functional linkage device integrating time-sampling of sewage and testing of water permeability coefficient and its working method
  • A multi-functional linkage device integrating time-sampling of sewage and testing of water permeability coefficient and its working method
  • A multi-functional linkage device integrating time-sampling of sewage and testing of water permeability coefficient and its working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] like figure 1 , 2 Shown in , 3, a kind of multifunctional linkage device that collects time-sampling of sewage and water permeability test as one, the main components are water supply channel 1; overflow port 2 on the water cylinder; water cylinder 3; overflow tank 4 The overflow port 5 on the overflow tank; the sample support 6; the sample 7; the flow meter 8; the water level difference 9; the electronic thermometer 10; the scale 11; Workbench A14; the first drainage control valve 15; the second drainage control valve 16; the third drainage control valve 17; the fourth drainage control valve 18; drainage bucket 19; the drainage bucket can control the drain valve 20; 22; the working bucket can control the water discharge valve 23; the water pump 24; the electric control of the water pump 25; the electric control of the propeller 26; the power switch 27; the water supply conduit 28; the first drainage conduit 29; the second drainage conduit 30; Drive 32 etc. are made u...

Embodiment 2

[0101] Sewage time-sharing sampling and water permeability test are carried out at the same time, simulating the environment of sample 7 filtering sewage for a long time. First close the working bucket to control the drain valve 23, put 10 parts of quality impurities and 90 parts of quality clear water into the working bucket according to a certain ratio, turn on the power, turn on the power switch 27, adjust the propeller electric control 26, make the propeller 22 with a certain Rotate at a certain speed to fully mix the sewage in the working bucket 21. At this time, the concentration of the sewage in the bucket remains constant at 10%. Closing the overflow tank can control the drain valve 13, the third drain control valve 17 and the fourth drain control valve 18. Open the first drain control valve 15 and the second drain control valve 16, and the water discharged from the overflow port 2 on the water cylinder and the overflow port 5 on the overflow tank in the device A flows...

Embodiment 3

[0127] A method of using a multi-functional linkage device that integrates time-collecting sewage water sampling and permeability coefficient testing:

[0128] (1) Single measurement of permeability coefficient. The test water quality is clear water, and the instruments used include device A, water pump 24 and working bucket 21. The specific operation steps are as follows:

[0129] A. Fill most of the bucket of water into the working bucket 21, the temperature is controlled at 20±3°C, and the water discharge valve 23 can be controlled by closing the working bucket. Prepare a stopwatch with an accuracy of 1s. Prepare a vernier caliper with a division value of 1mm and a range greater than 100mm. Prepare three cylinders with a diameter D of 100 mm and a thickness L of 50 mm as samples and mark them.

[0130] B. Use a vernier caliper to measure the diameter D and thickness L of the cylindrical sample, measure 3 times respectively, and take the average value. The result is accur...

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Abstract

The invention relates to the technical field of civil engineering material testing, in particular to a multi-functional linkage device integrating time-collecting sewage sampling and permeability coefficient testing and a working method thereof. The device is mainly divided into two parts. The first part is device A, which is mainly composed of water supply channel, cylinder overflow port, water cylinder, overflow tank, tank overflow port, sample holder, sample, scale table, sewage sampling pipe, high-precision flowmeter, Composed of electronic thermometer and workbench. The second part is device B, which is mainly composed of working bucket, drainage bucket, propeller, water pump, power switch, electric control of water pump, electric control of propeller, guide rod rotation driver and workbench. Device A and device B are connected by a water supply conduit and two drain conduits to form a multifunctional linkage device. The invention can simulate the situation that the permeable pavement encounters sewage infiltration in the real environment, obtains samples of the sewage filtered by the sample at different times, and measures the water permeability coefficient of the sample at the same time, the water source is recycled, and the operation is simple.

Description

technical field [0001] The invention relates to the technical field of civil engineering material testing, in particular to a time-divided sampling and permeability coefficient joint testing technology of permeable cement concrete sewage. Background technique [0002] At present, there is no national standard in the field of permeable cement concrete pavement, and generally refer to the industry standards compiled in recent years and the local standards of Beijing. The water permeability coefficient is an important index to measure the water permeability of pervious concrete. The industry standard and the local standard respectively give two different test methods. "Technical Regulations for Permeable Cement Concrete Pavement" (CJJ / T135-2009) is an industry standard in this field. In Appendix A, the test device, operation steps and calculation formula for measuring the water permeability coefficient by the constant water head method are given. This method is applicable Test...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08G01N1/14
Inventor 杨鼎宜朱金春徐剑张帅胡欣欣沈武张佩玲史振宇江虹孙飞进王长江
Owner YANGZHOU UNIV
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