CN201673106U - Clogging simulation test device for refuse landfill drainage layer at different temperatures - Google Patents
Clogging simulation test device for refuse landfill drainage layer at different temperatures Download PDFInfo
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- CN201673106U CN201673106U CN2010202027947U CN201020202794U CN201673106U CN 201673106 U CN201673106 U CN 201673106U CN 2010202027947 U CN2010202027947 U CN 2010202027947U CN 201020202794 U CN201020202794 U CN 201020202794U CN 201673106 U CN201673106 U CN 201673106U
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000004088 simulation Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 230000008676 import Effects 0.000 claims description 9
- 230000002572 peristaltic effect Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract 4
- 230000007246 mechanism Effects 0.000 description 9
- 238000001764 infiltration Methods 0.000 description 6
- 230000008595 infiltration Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004746 geotextile Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a clogging simulation test device for a refuse landfill drainage layer at different temperatures. A cylinder filled with sand gravels is placed inside a water tank, a temperature automatic electric control box is installed outside the water tank and is respectively connected with a temperature sensor and an electric heat pipe, a permeable plate arranged on the lower portion of the cylinder forms a closed cavity together with a bottom plate, a leachate inlet arranged on the lateral wall of the cavity is connected with the permeable plate, a sealed cover plate covers on the top of the cylinder, a vent hole is arranged on the top of the cylinder, a leachate outlet is arranged on the upper portion of the cylinder, more than three holes are evenly arranged on the lateral wall of the cylinder, a joint is respectively mounted on each hole, one end of each joint is inserted into a porous pipe of the sand gravels, while the other end is connected with one end of a tee valve on the lateral wall of the water tank, a second end and a third end of the tee valve are respectively connected with drainage pipes and pressure measuring pipes, and each pressure measuring pipe and the vent hole are connected with a gas collection bag. The clogging simulation test device can measure porosity and leakage coefficient of the drainage holes of the drainage sand gravels, and measure biochemistry parameters of the leachate in the sand gravels.
Description
Technical field
The utility model relates to a kind of condition of different temperatures drainage layer of refuse landfill under silting simulation test device.
Background technology
(the Leachate Collection and Drainage Systems of percolate guide system, abbreviation LCDS) effect is to discharge timely and effectively by rainwater to go into to blend the percolate that garbage degradation produces, head on the control laying (is generally got 30cm, GB16899-2008 in design load; US EPA, 1985), thereby reduce the percolate seepage and guarantee the landfill yard safe operation.Because the influence of physics, chemistry, biodyne in the landfill yard operational process, silting in various degree can take place in drainage blanket in the percolate guide system, cause volume of voids to reduce even stop up, cause the lead layer infiltration coefficient to change, thereby can't realize the guide function of expecting.The drainage blanket silting will directly cause percolate water level rising in the landfill yard, make the head on the bottom liner layer be far longer than design load.
Be research landfill yard drainage blanket silting mechanism and influence factor thereof, Chinese scholars has been carried out a lot of shop experiments, more commonly the rubbish column test.At present, the rubbish column test can be studied the influence to silting of adrainage material particle diameter and grating, percolate flow velocity, concentration and temperature.But it is, in also being confined to for the research of temperature effect, the situation of low temperature, far away not enough for drainage blanket silting research under the high-temperature condition owing to reasons such as test unit restrictions.And in fact, especially domestic, the temperature of landfill yard bottom is often very high.
Summary of the invention
The purpose of this utility model be to provide a kind of can be at condition of different temperatures drainage layer of refuse landfill under silting simulation test device.
The technical solution adopted in the utility model:
The cylinder of sandy gravel is housed in the utility model is incited somebody to action, is positioned in the water tank of filled with water, temperature electrical autocontrol case is equipped with in the water tank outside, and temperature electrical autocontrol case is connected with the temperature sensor that inserts water tank upper and the electrothermal tube of water tank bottom respectively; Described cylinder bottom is provided with porous disc, form a closed cavity with base plate, the percolate of test usefulness is connected with percolate import that cavity sidewalls is opened after peristaltic pump pressurization, the cylinder top is stamped seal cover board and is provided with air hole, cylinder top has the percolate outlet, the cylinder side wall that sandy gravel part is housed evenly has the hole more than 3, joint is equipped with in each hole respectively, one end of each joint is connected with the antipriming pipe that inserts sandy gravel respectively, the other end of each joint is connected with an end of the T-valve that is installed in the water tank sidewall, the second termination drainpipe of T-valve, the 3rd end of T-valve links to each other with the piezometric tube of water tank outside, and each piezometric tube all is connected with the gas collecting bag with air hole.
Ebullator is equipped with in described water tank outside, and pump inlet is arranged on the water tank bottom, and outlet is arranged on top.The described cylinder side wall that the sandy gravel part is housed evenly has 3-10 hole.
The beneficial effect that the utlity model has is:
The utility model is controlled temperature effectively, and the silting mechanism and the evolution of simulation landfill yard sandy gravel drainage blanket are analyzed various different temperatures, particle diameter, percolate flow velocity, concentration conditions, had or not the influence of geotextile to silting.The utility model can measure draining sandy gravel drain aperture degree, infiltration coefficient and wherein the biochemical parameters of percolate measure (Ca for example
2+, COD, BOD, organic volatile acid concentration).Simultaneously, the many down group tests of same temperature conditions can be carried out simultaneously, effectively economize on resources, and raise the efficiency.
Description of drawings
Accompanying drawing is a structural principle synoptic diagram of the present utility model.
Among the figure: the import of 1-1 percolate, 1-2 porous disc, 1-3 cylinder, the outlet of 1-4 percolate, 2-1 water tank, the 2-2 ebullator, 2-3 electrothermal tube, 2-4 temperature sensor, 2-5 temperature electrical autocontrol case, 3-1 antipriming pipe, the 3-2 T-valve, 3-3 piezometric tube, 3-4 air hole, 3-5 gas collecting bag
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in drawings, the cylinder 1-3 of sandy gravel in inciting somebody to action, the utility model is housed, be positioned among the water tank 2-1 of filled with water, water tank 2-1 is equipped with the outside ebullator 2-2 and temperature electrical autocontrol case 2-5, temperature electrical autocontrol case 2-5 is connected with the temperature sensor 2-4 that inserts water tank 2-1 top and the electrothermal tube 2-3 of water tank 2-1 bottom respectively, ebullator 2-2 import is arranged on water tank 2-1 bottom, outlet is arranged on top, ebullator 2-2 quickens flow up and down, and the temperature data of temperature automatic control box 2-5 reception temperature sensor 2-4 and automatic control add electrothermal tube 2-3 and realizes constant temperature; Described cylinder 1-3 bottom is provided with porous disc 1-2, form a closed cavity with base plate, the percolate of test usefulness is connected with percolate import 1-1 that cavity sidewalls is opened after peristaltic pump pressurization, cylinder 1-3 is stamped seal cover board in the top and is provided with air hole 3-4, cylinder 1-3 top has percolate outlet 1-4, the cylinder 1-3 sidewall that sandy gravel part is housed evenly has the hole more than 3, joint is equipped with in each hole respectively, one end of each joint is connected with the antipriming pipe 3-1 that inserts sandy gravel respectively, the other end of each joint is connected with an end of the T-valve that is installed in the water tank sidewall, the second termination drainpipe of T-valve, the 3rd end of T-valve links to each other with the piezometric tube 3-3 of water tank 2-1 outside, and each piezometric tube 3-3 all is connected with gas collecting bag 3-5 with air hole 1-4.In process of the test, can obtain the silting situation parameter of drainage blanket by measurement mechanism, the passage that is connected with drainpipe by T-valve 3-2 can be discharged the percolate of privileged site, measure CO D, BOD, PH, Ca
2+, organic volatile acid concentration, measure the drain aperture degree; Can measure the infiltration coefficient of draining sandy gravel by piezometric tube 3-3.Temperature automatic control box 2-5 can choose on market according to the experiment needs.
The described cylinder 1-3 sidewall that the sandy gravel part is housed evenly has 3-10 hole, and cylinder 1-3 sidewall evenly has 7 holes in the present embodiment.
As shown in drawings, draining sandy gravel cylindrical shell device: comprise the percolate import 1-1 of cylindrical shell 1-3 bottom, porous disc 1-2, the percolate outlet 1-4 on cylinder 1-3 top.Porous disc 1-2 is the sheet steel that is drilled with aperture, both can support the sandy gravel on top, can form the reservoir of percolate again with base plate, places geotextile on it and can also study under the one-dimensional condition geotextile to the influence of silting.The percolate import is positioned at below the cylindrical shell, can guarantee that percolate covers sandy gravel from bottom to top, guarantees saturated.
As shown in drawings, described hot water bath temperature control device: comprise among the water tank 2-1 and pile water, ebullator 2-2 quickens flow up and down, for cylinder 1-3 provides an even temperature environment, 2-4 water temperature sensor can record water temperature in real time, and pass to temperature electrical autocontrol case 2-5, when water temperature was lower than design temperature, temperature electrical autocontrol case 2-5 control heating tube 2-3 circuit automatically realized heating.
As shown in drawings, described measurement mechanism: comprise that the cylinder 1-3 sidewall that the sandy gravel part is housed evenly has the hole more than 3, joint is equipped with in each hole respectively, one end of each joint is connected with the antipriming pipe 3-1 that inserts sandy gravel respectively, antipriming pipe 3-1 length is the radius length of cylinder 1-3, form for spiling above the tubule, can prevent that sandy gravel from connecting the obstruction of the conduit of measurement mechanism 3 to cylinder 1-3 side, simultaneously can also prevent that moisture can not effectively be discharged in the sandy gravel, the other end of each joint is connected with an end of the T-valve that is installed in the water tank sidewall, the second termination drainpipe of T-valve, the 3rd end of T-valve links to each other with the piezometric tube 3-3 of water tank 2-1 outside, each piezometric tube 3-3 all is connected with gas collecting bag 3-5 with air hole 1-4, piezometric tube 3-3 and collecting bag are communicated with, and can guarantee anaerobic condition and pressure equilibrium.
In the process of the test, control T-valve switch links the port of T-valve and piezometric tube 3-3.The percolate of test usefulness enters percolate import 1-1 by peristaltic pump, constantly gathers until not having porous disc 1-2, enters in the sandy gravel of cylinder, is discharged by percolate outlet 1-3 at last.Obtain the infiltration coefficient of privileged site sandy gravel by the flow velocity of the loss of flood peak in the percolate flow process (being the head difference of piezometric tube 3-3) and percolate, thereby obtain the silting situation of different parts sandy gravel.When the measurement drain aperture is spent, turn off the peristaltic pump that is moving earlier, then open uppermost T-valve to the drainpipe passage, measure the volume that flows out percolate.After treating that liquid no longer flows out, open following T-valve again, go down successively and obtain the water discharge of different parts sandy gravel.Water discharge can obtain the drain aperture degree of this part sandy gravel divided by the cumulative volume of sandy gravel.By this drainage channel, can obtain the percolate in the different parts sandy gravel, measure CO D, BOD, PH, Ca
2+, organic volatile acid concentration etc., and then the mechanism of research sandy gravel silting.
Can set a temperature in the water tank, can place a plurality of cylinders and a plurality of measurement mechanism, carry out many groups comparison test under the uniform temp condition.Several different water tanks can be set different temperatures, can carry out the many groups comparison test under the condition of different temperatures.
The utility model is by sandy gravel cylindrical shell device, the bath temperature control device, the condition drainage layer of refuse landfill under silting of measurement mechanism simulation design temperature, can provide an even temperature field by water-bath, piezometric tube can be measured infiltration coefficient, and drainpipe can obtain the percolate of different parts.The utility model can be measured infiltration coefficient, the drain aperture degree of sandy gravel under the condition of different temperatures, by the collection to gas and percolate, can measure gas composition and content, percolate COD, BOD, PH, Ca
2+, organic volatile acid concentration etc., for research drainage layer of refuse landfill silting mechanism provides basic parameter.
Claims (3)
1. condition of different temperatures drainage layer of refuse landfill under silting simulation test device, it is characterized in that: the cylinder (1-3) that sandy gravel is housed in inciting somebody to action, be positioned in the water tank (2-1) of filled with water, temperature electrical autocontrol case (2-5) is equipped with in water tank (2-1) outside, and temperature electrical autocontrol case (2-5) is connected with the temperature sensor (2-4) that inserts water tank (2-1) top and the electrothermal tube (2-3) of water tank (2-1) bottom respectively; Described cylinder (1-3) bottom is provided with porous disc (1-2), form a closed cavity with base plate, the percolate of test usefulness is connected with percolate import (1-1) that cavity sidewalls is opened after peristaltic pump pressurization, cylinder (1-3) top is stamped seal cover board and is provided with air hole (3-4), cylinder (1-3) top has percolate outlet (1-4), cylinder (1-3) sidewall that sandy gravel part is housed evenly has the hole more than 3, joint is equipped with in each hole respectively, one end of each joint is connected with the antipriming pipe (3-1) that inserts sandy gravel respectively, the other end of each joint is connected with an end of the T-valve that is installed in the water tank sidewall (3-2), the second termination drainpipe of T-valve (3-2), the 3rd end of T-valve (3-2) links to each other with the piezometric tube (3-3) of water tank (2-1) outside, and each piezometric tube (3-3) all is connected with gas collecting bag (3-5) with air hole (1-4).
2. a kind of condition of different temperatures drainage layer of refuse landfill under silting simulation test device according to claim 1, it is characterized in that: ebullator (2-2) is equipped with in described water tank (2-1) outside, ebullator (2-2) import is arranged on water tank (2-1) bottom, and outlet is arranged on top.
3. a kind of condition of different temperatures drainage layer of refuse landfill under silting simulation test device according to claim 1 is characterized in that: described cylinder (1-3) sidewall that the sandy gravel part is housed evenly has 3-10 hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202027947U CN201673106U (en) | 2010-05-25 | 2010-05-25 | Clogging simulation test device for refuse landfill drainage layer at different temperatures |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202027947U CN201673106U (en) | 2010-05-25 | 2010-05-25 | Clogging simulation test device for refuse landfill drainage layer at different temperatures |
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| CN201673106U true CN201673106U (en) | 2010-12-15 |
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| CN2010202027947U Expired - Lifetime CN201673106U (en) | 2010-05-25 | 2010-05-25 | Clogging simulation test device for refuse landfill drainage layer at different temperatures |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846613A (en) * | 2010-05-25 | 2010-09-29 | 浙江大学 | Clogging simulation test device for drainage layer of refuse landfill under different-temperature conditions |
| CN103760084A (en) * | 2014-01-16 | 2014-04-30 | 常州工学院 | Anti-seepage slurry infiltration instrument of refuse landfill |
| CN110108615A (en) * | 2019-04-13 | 2019-08-09 | 北京润宏技术检测有限公司 | A kind of infiltration gradient testing machine and its experimental control method for coarse-grained soil |
-
2010
- 2010-05-25 CN CN2010202027947U patent/CN201673106U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846613A (en) * | 2010-05-25 | 2010-09-29 | 浙江大学 | Clogging simulation test device for drainage layer of refuse landfill under different-temperature conditions |
| CN101846613B (en) * | 2010-05-25 | 2011-08-24 | 浙江大学 | Clogging simulation test device for drainage layer of refuse landfill under different-temperature conditions |
| CN103760084A (en) * | 2014-01-16 | 2014-04-30 | 常州工学院 | Anti-seepage slurry infiltration instrument of refuse landfill |
| CN103760084B (en) * | 2014-01-16 | 2016-06-22 | 常州工学院 | A kind of anti-seepage slurry infiltration instrument of refuse landfill |
| CN110108615A (en) * | 2019-04-13 | 2019-08-09 | 北京润宏技术检测有限公司 | A kind of infiltration gradient testing machine and its experimental control method for coarse-grained soil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101215 Effective date of abandoning: 20110824 |