CN204408876U - A kind of saline land filter pipe net desalting system - Google Patents
A kind of saline land filter pipe net desalting system Download PDFInfo
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- CN204408876U CN204408876U CN201420873380.5U CN201420873380U CN204408876U CN 204408876 U CN204408876 U CN 204408876U CN 201420873380 U CN201420873380 U CN 201420873380U CN 204408876 U CN204408876 U CN 204408876U
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- filter pipe
- discharge unit
- salt discharge
- saline land
- desalting system
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Abstract
The utility model relates to a kind of saline land filter pipe net desalting system, this system comprises salt discharge unit and is arranged on the multiple drainage inspection wells on salt discharge unit, described salt discharge unit is arranged along saline land greening direction, described salt discharge unit comprises thick blotter, loaded filter and plantation layer from bottom to top successively, filter pipe is provided with in described thick blotter, described loaded filter adopts geotextiles bound edge, can plant magaphanerophytes in described plantation layer, the both sides of described salt discharge unit are also provided with track kerbstone.Compared with prior art, the utility model structural framing is simple, can effectively reduce greening cost, while the hydrophobic salt discharge of guarantee, can also improve greening and plant the survival rate of carrying, improve urban beautification effect, have good application prospect.
Description
Technical field
The utility model belongs to Saline-alkali Field Control technical field, relates to a kind of desalting system, especially relates to a kind of saline land filter pipe net desalting system.
Background technology
Saline land refers to that soil contains the soil of excess soluble salt, the reason of saline Land is because soil and groundwater saliferous is too high, under strong surface evaporation effect, underground shallow layer water is transported to earth's surface through capillary and is evaporated, capillary is in the process of earth's surface water delivery, also the salinity in water is taken to earth's surface, after water is evaporated, soil salt is risen by capillarity and accumulates in upper soll layer, salinity has just been stayed in earth's surface and ground thin solum, the salinity of such accumulation is many, there is no again enough fresh water dilutions and drained, just define the salinization of soil.The salinization of soil is a global ecological difficult problem, according to the statistics of the World Food Programme and science and education tissue, whole world wetland with saline-alkaline about 9.5 hundred million hectares, account for 10% of Global land area, and Pedotransfer function area constantly increases, about there is the Secondary Saline of 1,000 ten thousand hectare of land and soil to let a piece of farmland go to waste every year and abandon.All kinds of saline and alkaline soil of China reaches 100,000,000 hectares, and saline soil is a part for China's important land resources, and wasteland resources medium salting soil occupies significant proportion.
Lingang New City is more typical beach saline land, salinity source is mainly seawater, Shanghai Communications University's agricultural and biological institute are on March 15,25 days ~ 2003 December in 2000, complete 42 sampling points of Lingang New City first phase soil, 51 samples in 17 Ge Yang districts, the field acquisition of totally 93 soil samples, laboratory testing analysis and arrangement are summed up.Testing result shows: the Lingang New City soil texture is totally partially sticky, and soil acidity or alkalinity is higher, and 59.14% soil is 8.0 ~ 8.5 genus basic soils, and 39.78% soil is 8.5 ~ 9.0 genus strong basicity soil; Soil organic matter overall content is not high, and the soil organic matter content of 86% is less than 20 grams per kilogram; Soil ion concentration, salinity total amount height differs greatly, and normal soil salt total amount is 0.5 ~ 1 grams per kilogram, reaches as high as 8.1 grams per kilogram; In the salt of high salinity soil is grouped into, more than 80% is the sodium chloride harmful to garden plant growth.
Due to the accumulation of salinity a large amount of in alkaline land soil, the deterioration of a series of soil physical property can be caused: structure viscous, air capacity of soils is poor, and unit weight is high, and harden consolidation, soil temperature rises slow, in soil, aerobic microorganism activity is poor, and moisture release is slow, and osmotic coefficient is low, capillarity is strong, more causes the saliferous aggravation of topsoil.This is very unfavorable to the growth of ornamental plant, and the new root especially affecting thing of newly planting is sprouted.The saline and alkaline harm to plant shows the following aspects: the physiological drought causing plant, makes plant wilt even dead; Soil salt content is too high, especially at arid season, can injure plant cell, hypocotyl tissue; Affect plant normal nutrition to absorb; The stomatal closure affecting plant causes plant, and easily arid is withered.
At present, the domestic improvement method for saline land mainly contains physically improved, four kinds of methods such as chemical modifying, biological modification and water conservancy improvement.In afforestation project, reducing greening cost, accelerate greening speed, improve landscaping effect, is the leading indicator evaluating varieties in saline-alkali areas afforestation project effect.Above-mentioned improvement method cuts both ways, and improves the soil in measure numerous, crucially follows the rule of moisture-salt transport, culture fertility, keeps the long-acting of soil moved in improve the original, Rational Irrigation, effective draining, reduces runoff, increases gravitational water, cuts off capillary water.Such as, large cave wholely, the engineering measure of the fresh water desalinization of soil by flooding or leaching, quick result, afforest and beautify effective, advantage of lower cost, and this processing method is based on the salt discharge treatment process of water specialty, therefore think the salt discharge technology emphasis that water supply-drainage discipline is especially grasped.
Summary of the invention
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and a kind of saline land filter pipe net desalting system is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of saline land filter pipe net desalting system, this system comprises salt discharge unit and is arranged on the multiple drainage inspection wells on salt discharge unit, described salt discharge unit is arranged along saline land greening direction, and described salt discharge unit is arranged on saline land greening layer bottom, described salt discharge unit comprises thick blotter, loaded filter and plantation layer from bottom to top successively, filter pipe is provided with in described thick blotter, described loaded filter adopts geotextiles bound edge, can plant magaphanerophytes in described plantation layer, the both sides of described salt discharge unit are also provided with track kerbstone.
The distance on described filter pipe distance ground is 0.8 ~ 1.2m.
The layout density of described filter pipe is spacing 10 ~ 15 meters.
The laying gradient of described filter pipe is 0.2 ~ 0.4%.
Described filter pipe is the permeable plastic tube of UPVC, and the diameter of this permeable plastic tube is 150mm or 100mm.
The particle diameter of described thick blotter medium stone is 2 ~ 5mm.
On described salt discharge unit, the spacing of adjacent two drainage inspection wells is 30 ~ 40m.
Described drainage inspection well is that plastic draining observes well, and the well lid that this plastic draining observes well is PVC-U well lid, is also provided with the riffler of 300mm, keeps at a certain distance away, after drainage inspection well sand setting, access municipal storm sewer in described drainage inspection well.
The landform of described plantation layer exceeds track kerbstone 10 ~ 15cm.
The utility model, in actual design process, can also suitably increase larger the watering of caliber and spill feed pipe, so that the later stage can be spilt feed pipe and irrigates greenery patches in time by being watered, can be applicable to all saline land greenings and plant.
Compared with prior art, the utility model has following characteristics:
1) in thick blotter filter pipe process of deployment in, adopt 0.2 ~ 0.4% slope design, not only can adapt to the working condition compared with long vehicle road, directly Storm Sewer Network can be accessed, and draining requirement smoothly can be met;
2) drainage pipeline adopts UPVC permeable plastic tube, utilizes the feature that plastics self are less to resistance to water-flow, can keep hydrophobic smooth and easy under long distance condition of pipeline;
3) in the process of deployment of filter pipe, between tube and tube, adopt rigid interface, can effectively prevent in infiltration process due to earth is brought into and block infiltration tube wall problem, make filter pipe net desalting system more stable;
4) system structural framework is simple, can effectively reduce greening cost, while the hydrophobic salt discharge of guarantee, can also improve the landscaping effect in track, have good application prospect.
Accompanying drawing explanation
Fig. 1 is embodiment 1 salt discharge cellular construction schematic diagram;
Fig. 2 is embodiment 2 salt discharge cellular construction schematic diagram;
Description of symbols in figure:
1-thick blotter, 2-filter pipe, 3-loaded filter, 4-plantation layer, 5-magaphanerophytes, 6-track kerbstone, 7-car lane, 8-bicycle lane.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment 1:
As shown in Figure 1, a kind of saline land filter pipe net desalting system, this system comprises salt discharge unit and is arranged on the multiple drainage inspection wells on salt discharge unit, salt discharge unit is arranged along saline land greening direction, and be arranged on saline land greening layer bottom, salt discharge unit comprises thick blotter 1, loaded filter 3 and plantation layer 4 from bottom to top successively, filter pipe 2 is provided with in thick blotter 1, loaded filter 3 adopts geotextiles bound edge, can plant magaphanerophytes 5 in plantation layer 4, the both sides of salt discharge unit are also provided with track kerbstone 6.
In the present embodiment, salt discharge unit is arranged between car lane 7 and bicycle lane 8, in salt discharge unit, the particle diameter of thick blotter 1 medium stone is 2mm, filter pipe 2 is the permeable plastic tube of UPVC, and the diameter of this permeable plastic tube is 100mm, and the layout density of filter pipe 2 is spacing 10 meters, the laying gradient of filter pipe 2 is 0.3%, filter pipe 2 is 1m apart from the distance on ground, and the landform of plantation layer 4 is higher than track kerbstone 6, and both differences in height are 10cm.
Wherein, on salt discharge unit, the spacing of adjacent two drainage inspection wells is 30m, drainage inspection well is that plastic draining observes well, the well lid that this plastic draining observes well is PVC-U well lid, the riffler of 300mm is also provided with in drainage inspection well, keep at a certain distance away, after drainage inspection well sand setting, access municipal storm sewer.
The later stage in actual design process, can also suitably increase larger the watering of caliber and spill feed pipe, so that can be spilt feed pipe and irrigates greenery patches in time by being watered.
Embodiment 2:
As shown in Figure 2, in the present embodiment, salt discharge unit is arranged between two motor vehicles road 7, in salt discharge unit, the particle diameter of thick blotter 1 medium stone is 3mm, filter pipe 2 is the permeable plastic tube of UPVC, the diameter of this permeable plastic tube is 100mm, the layout density of filter pipe 2 is spacing 12 meters, the laying gradient of filter pipe 2 is 0.3%, the distance on filter pipe distance ground is 0.8m, the landform of plantation layer 4 is higher than track kerbstone 6, and both differences in height are 15cm, and on salt discharge unit, the spacing of adjacent two drainage inspection wells is 40m.All the other are with implementing 1.
Embodiment 3:
In the present embodiment, salt discharge unit is arranged between two motor vehicles road 7, in salt discharge unit, the particle diameter of thick blotter 1 medium stone is 5mm, and filter pipe 2 is the permeable plastic tube of UPVC, and the diameter of this permeable plastic tube is 150mm, the layout density of filter pipe 2 is spacing 15 meters, the laying gradient of filter pipe 2 is 0.2%, and the distance on filter pipe distance ground is 1.2m, and the landform of plantation layer 4 is higher than track kerbstone 6, both differences in height are 12cm, and on salt discharge unit, the spacing of adjacent two drainage inspection wells is 35m.All the other are with implementing 1.
Embodiment 4:
In the present embodiment, in salt discharge unit, the particle diameter of thick blotter 1 medium stone is 4mm, the laying gradient of filter pipe 2 is 0.3%, the distance on filter pipe distance ground is 0.8m, the landform of plantation layer 4 is higher than track kerbstone 6, both differences in height are 14cm, and on salt discharge unit, the spacing of adjacent two drainage inspection wells is 38m.All the other are with implementing 1.
Claims (9)
1. a saline land filter pipe net desalting system, it is characterized in that, this system comprises salt discharge unit and is arranged on the multiple drainage inspection wells on salt discharge unit, described salt discharge unit is arranged along saline land greening direction, described salt discharge unit comprises thick blotter, loaded filter and plantation layer from bottom to top successively, filter pipe is provided with in described thick blotter, described loaded filter adopts geotextiles bound edge, plant magaphanerophytes in described plantation layer, the both sides of described salt discharge unit are also provided with track kerbstone.
2. a kind of saline land according to claim 1 filter pipe net desalting system, is characterized in that, the distance on described filter pipe distance ground is 0.8 ~ 1.2m.
3. a kind of saline land according to claim 1 filter pipe net desalting system, is characterized in that, the layout density of described filter pipe is spacing 10 ~ 15 meters.
4. a kind of saline land according to claim 1 filter pipe net desalting system, is characterized in that, the laying gradient of described filter pipe is 0.2 ~ 0.4%.
5. a kind of saline land according to claim 1 filter pipe net desalting system, is characterized in that, described filter pipe is the permeable plastic tube of UPVC, and the diameter of this permeable plastic tube is 150mm or 100mm.
6. a kind of saline land according to claim 1 filter pipe net desalting system, is characterized in that, the particle diameter of described thick blotter medium stone is 2 ~ 5mm.
7. a kind of saline land according to claim 1 filter pipe net desalting system, it is characterized in that, on described salt discharge unit, the spacing of adjacent two drainage inspection wells is 30 ~ 40m.
8. a kind of saline land according to claim 1 filter pipe net desalting system, it is characterized in that, described drainage inspection well is that plastic draining observes well, and the well lid that this plastic draining observes well is PVC-U well lid, is also provided with the riffler of 300mm in described drainage inspection well.
9. a kind of saline land according to claim 1 filter pipe net desalting system, is characterized in that, the landform of described plantation layer exceeds track kerbstone 10 ~ 15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420873380.5U CN204408876U (en) | 2014-12-30 | 2014-12-30 | A kind of saline land filter pipe net desalting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420873380.5U CN204408876U (en) | 2014-12-30 | 2014-12-30 | A kind of saline land filter pipe net desalting system |
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| CN204408876U true CN204408876U (en) | 2015-06-24 |
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| CN201420873380.5U Expired - Fee Related CN204408876U (en) | 2014-12-30 | 2014-12-30 | A kind of saline land filter pipe net desalting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107439077A (en) * | 2017-06-23 | 2017-12-08 | 福建省春天生态科技股份有限公司 | A kind of method of cell salt-soda soil comprehensive improvement |
-
2014
- 2014-12-30 CN CN201420873380.5U patent/CN204408876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107439077A (en) * | 2017-06-23 | 2017-12-08 | 福建省春天生态科技股份有限公司 | A kind of method of cell salt-soda soil comprehensive improvement |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20211230 |