CN115136764B - Concealed pipe reverse salt removal method for saline-alkali soil improvement - Google Patents
Concealed pipe reverse salt removal method for saline-alkali soil improvement Download PDFInfo
- Publication number
- CN115136764B CN115136764B CN202210954226.XA CN202210954226A CN115136764B CN 115136764 B CN115136764 B CN 115136764B CN 202210954226 A CN202210954226 A CN 202210954226A CN 115136764 B CN115136764 B CN 115136764B
- Authority
- CN
- China
- Prior art keywords
- water
- salt
- pipe
- soil
- removal method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002689 soil Substances 0.000 title claims abstract description 60
- 150000003839 salts Chemical class 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000003513 alkali Substances 0.000 title claims abstract description 11
- 230000006872 improvement Effects 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 116
- 239000010410 layer Substances 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 239000002344 surface layer Substances 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 claims description 15
- 238000001704 evaporation Methods 0.000 claims description 9
- 230000008020 evaporation Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000012946 outsourcing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 5
- 230000002262 irrigation Effects 0.000 description 5
- 238000003973 irrigation Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000011033 desalting Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B77/00—Machines for lifting and treating soil
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/06—Watering arrangements making use of perforated pipe-lines located in the soil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a reverse salt removing method of a concealed pipe for saline-alkali soil improvement, which is characterized in that a pipeline, a water content sensor and a salt sensor are buried below a soil layer to be improved, a control system is used for controlling a water pump to inject water into the pipeline, and the water content sensor and the salt sensor are used for feeding back numerical values to the control system to control the water injection quantity; through a circulating water injection mode, until the salt content value under the required standard is reached; after the water injection operation is finished for the last time, after the soil layer surface layer is dried in the sun, uniformly collecting soil salt formed on the soil layer surface layer. Compared with the prior art, the invention has the beneficial effects that: and the salt below the soil layer is reversely discharged to the ground surface by adopting a reverse salt discharging mode, so that the later-stage direct unified treatment is facilitated.
Description
Technical Field
The invention belongs to the field of water and soil treatment, and particularly relates to a concealed pipe reverse salt removal method for saline-alkali soil improvement.
Background
Soil salinization is also called as soil salinization, and is a process that salt in deep water of soil rises to the surface along with capillary water, and the salt is accumulated in surface soil after water evaporation.
In order to solve the problem of soil salt damage, many soil improvement methods adopt the steps of paving an isolation layer and a buried pipe underground, wherein the isolation layer is used for blocking salt rising to the surface along with capillary water, then reversely percolating the salt on the surface into soil in a mode of using surface irrigation or daily rainfall, and collecting and extracting the salt water through the buried pipe to realize soil desalination treatment.
However, the above method and method are applicable only to areas with high rainfall and low evaporation. And for some arid areas it is obviously not applicable. Due to regional characteristics, the precipitation amount of the arid regions is less than 200mm, but the evaporation amount of the arid regions can reach 3000mm, so that the water is evaporated in a large amount just before the water is injected into the ground surface for effective infiltration. Therefore, unless an excessive irrigation mode is adopted, the desalting effect is basically very little.
Disclosure of Invention
The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the present application.
The invention provides a reverse salt removal method of a concealed pipe for saline-alkali soil improvement, which adopts a reverse salt removal mode to reversely remove salt below a soil layer to the ground surface aiming at the characteristics of arid areas, thereby being convenient for direct and unified treatment in later period.
The invention discloses a concealed pipe reverse salt removal method for saline-alkali soil improvement, which comprises the following steps of:
s1: burying pipelines at the position 30cm-80cm below the soil layer to be improved;
s2: corresponding water content sensors and salt sensors are arranged at the positions 20cm-100cm below the soil layer to be improved;
s3: the water pump is controlled by the control system to inject water into the pipeline, and the water content sensor and the salinity sensor feed back the numerical value to the control system to control the water injection quantity;
s4: after the first water injection operation is finished, the injected water carries the salt in the soil to rise to the surface under the action of natural sun-drying evaporation until the value of the water content sensor is recovered to the value in the conventional state; at this time, the water injection rate of the next water injection operation is further deduced according to the numerical value fed back by the salinity sensor; and so on until the salt content value under the required standard is reached;
s5: after the water injection operation is finished for the last time, after the soil layer surface layer is dried in the sun, uniformly collecting soil salt formed on the soil layer surface layer.
In some embodiments, after step S1 is completed, the soil layer surface layer is subjected to laser leveling and flattening treatment.
In some embodiments, during step S3, saline-alkali soil treatment agents may be injected into the pipeline.
In some embodiments, the water content sensor and the salt sensor can be correspondingly arranged at a plurality of different depths and positions, the progress of salt discharge of the capillary phenomenon is deduced through numerical values measured at the different depths, and the detection accuracy is ensured through the different positions.
In some embodiments, the tubing in step S1 comprises
A main pipe horizontally buried under the soil surface;
the branch pipes are horizontally arranged on the main pipe and uniformly distributed with a plurality of branch pipes, and the joints of the main pipe and the branch pipes are provided with electric control valves;
the capillary is positioned between the adjacent branch pipes, and water outlets are arranged on the capillary;
the water pump pipe is connected with the main pipe, the outer end of the water pump is provided with a water pump, and the water pump pipe is provided with a flowmeter and a pressure gauge;
and the control system is respectively connected with the electric control valve, the water pump, the flowmeter, the pressure gauge, the water content sensor and the salinity sensor.
In some embodiments, the main pipe, branch pipe and capillary are made of PE or PVC materials; the main pipe and the branch pipe adopt a straight pipe structure or a corrugated pipe structure; the capillary tube adopts a corrugated tube structure; the caliber of the main pipe is 110-300mm; the caliber of the branch pipe is 110-200mm; the caliber of the capillary tube is 40-80mm; the capillary tube is externally provided with an outsourcing filter material.
In some embodiments, the corrugated pipe structure of the capillary is that a plurality of annular grooves are uniformly distributed on the straight pipe, and the water outlet holes are arranged in the annular grooves.
In some embodiments, the bellows structure of the capillary tube is a straight tube provided with a thread groove with a spiral structure, and the water outlet hole is arranged in the thread groove.
In some embodiments, the branch pipes are symmetrically arranged at two sides of the main pipe, and one end of the pumping pipe is positioned at the middle of the main pipe; the main pipe, the branch pipe and the capillary are in a grid structure.
In some embodiments, a venturi doser is provided on the pump tube; the venturi medicine feeder is externally connected with a medicine feeding tank, and a flowmeter is arranged between the venturi medicine feeder and the medicine feeding tank; the dosing tank and the flowmeter are connected with a control system.
Compared with the prior art, the invention has the following beneficial effects: the water is injected more uniformly by adopting a horizontal paving mode, and according to the characteristics of arid areas, reverse thinking is adopted, so that salt in the soil is further discharged to the surface of the earth through capillary phenomenon, then the problem of salinization of the soil is effectively and fundamentally solved by adopting a centralized treatment mode, and a pipeline at the later stage can be used for drip irrigation operation, so that the water can directly reach the roots of crops, the evaporation phenomenon is reduced, and the consumption of water resources is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the structural distribution of the main pipe, the branch pipe and the capillary tube of the present invention.
Fig. 3 is a schematic structural view of the thread groove of the present invention.
Fig. 4 is a schematic structural view of the annular groove of the present invention.
Description of the drawings: the device comprises a main pipe 1, a branch pipe 2, a capillary tube 3, a pumping pipe 4, a water pump 5, a venturi chemical feeder 6, a chemical feeding tank 7, a flowmeter 8, a pressure gauge 9, a water content sensor 10, a salinity sensor 11, a control system 12, an electric control valve 13, a thread groove 14, an annular groove 15 and a water outlet hole 16.
Detailed Description
The present invention will be described and illustrated with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments provided by the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
It is apparent that the drawings in the following description are only some examples or embodiments of the present invention, and it is possible for those of ordinary skill in the art to apply the present invention to other similar situations according to these drawings without inventive effort. Moreover, it should be appreciated that while such a development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as having the benefit of this disclosure.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by those of ordinary skill in the art that the described embodiments of the invention can be combined with other embodiments without conflict.
The invention discloses a concealed pipe reverse salt removal method for saline-alkali soil improvement, which comprises the following steps of:
s1: burying pipelines at the position 30cm-80cm below the soil layer to be improved;
s2: corresponding water content sensors 10 and salt sensors 11 are arranged at the positions 20cm-100cm below the soil layer to be improved;
s3: the control system 12 controls the water pump 5 to inject water into the pipeline, and the water content sensor 10 and the salt sensor 11 feed back the numerical value to the control system 12 to control the water injection quantity;
s4: after the first water injection operation is completed, the injected water carries the salt in the soil to rise to the surface under the action of natural sun-drying evaporation until the value of the water content sensor 10 is restored to the value in the conventional state; at this time, the water injection amount of the next water injection operation is further estimated based on the value fed back by the salt sensor 11; and so on until the salt content value under the required standard is reached;
s5: after the water injection operation is finished for the last time, after the soil layer surface layer is dried in the sun, uniformly collecting soil salt formed on the soil layer surface layer.
In some embodiments, after step S1 is completed, the soil layer surface layer is subjected to laser leveling and flattening treatment.
In some embodiments, saline-alkali soil treatment agents may be injected into the pipeline during step S3.
In some embodiments, the water content sensor 10 and the salt sensor 11 may be disposed at a plurality of different depths and positions, and the progress of salt discharge due to capillary phenomenon is inferred from the values measured at the different depths, so that the accuracy of detection is ensured at the different positions.
In some embodiments, the tubing in step S1 comprises
A main pipe 1 buried horizontally under the soil surface;
the branch pipes 2 are horizontally arranged on the main pipe 1 and uniformly distributed with a plurality of branch pipes, and the connection parts of the main pipe 1 and the branch pipes 2 are provided with electric control valves 13;
the capillary tube 3 is positioned between the adjacent branch pipes 2, and water outlet holes 16 are arranged on the capillary tube 3;
the water pumping pipe 4 is connected with the main pipe 1, the outer end of the water pumping pipe is provided with a water pump 5, and the water pumping pipe 4 is provided with a flowmeter 8 and a pressure gauge 9;
the control system 12 is respectively connected with the electric control valve 13, the water pump 5, the flowmeter 8, the pressure gauge 9, the water content sensor 10 and the salinity sensor 11.
In some embodiments, the main pipe 1, the branch pipe 2 and the capillary pipe 3 are made of PE or PVC materials; the main pipe 1 and the branch pipe 2 adopt a straight pipe structure or a corrugated pipe structure; the capillary tube 3 adopts a corrugated tube structure; the caliber of the main pipe 1 is 110-300mm; the caliber of the branch pipe 2 is 110-200mm; the caliber of the capillary tube 3 is 40-80mm; the capillary tube 3 is externally provided with an outsourcing filter material.
In some embodiments, the bellows structure of the capillary tube 3 is that a plurality of annular grooves 15 are uniformly distributed on a straight tube, and water outlets 16 are arranged in the annular grooves 15.
In some embodiments, the bellows structure of the capillary tube 3 is a straight tube provided with a screw thread groove 14 with a screw thread structure, and the water outlet hole 16 is arranged in the screw thread groove 14.
In some embodiments, the branch pipes 2 are symmetrically arranged at two sides of the main pipe 1, and one end of the pumping pipe 4 is positioned at the middle of the main pipe 1; the main pipe 1, the branch pipe 2 and the capillary 3 are in a grid structure.
In some embodiments, a venturi doser 6 is provided on the pump tube 4; the venturi doser 6 is externally connected with a doser tank 7, and a flowmeter 8 is arranged between the venturi doser tank and the venturi doser tank; the dosing tank 7 and the flow meter 8 are connected to a control system 12.
The invention also discloses a concealed pipe reverse salt discharging device which comprises a main pipe 1, a branch pipe 2, a capillary pipe 3, a pumping pipe 4, a water content sensor 10, a salt sensor 11 and a control system 12; wherein the main pipe 1 is buried under the soil surface horizontally; the branch pipes 2 are horizontally arranged on the main pipe 1 and uniformly distributed with a plurality of branch pipes, and the connection part of the main pipe 1 and the branch pipes 2 is provided with an electric control valve 13; the capillary tube 3 is positioned between the adjacent branch tubes 2, and the capillary tube 3 is provided with a water outlet hole 16; the water pumping pipe 4 is connected with the main pipe 1, the outer end of the water pumping pipe is provided with a water pump 5, and the water pumping pipe 4 is provided with a flowmeter 8 and a pressure gauge 9; the water content sensor 10 and the salinity sensor 11 are buried under the soil surface; the control system 12 is respectively connected with the electric control valve 13, the water pump 5, the flowmeter 8, the pressure gauge 9, the water content sensor 10 and the salinity sensor 11.
The water content and salinity data in the soil are monitored by the water content sensor 10 and the salinity sensor 11 and fed back to the control system 12, the control system 12 calculates the water quantity required to be injected in each area through data feedback and calculation, and then the water is injected by the water pump 5 and monitored by the flowmeter 8 and the pressure gauge 9. The electric control valve 13 is used as a switch in each area to effectively control the water injection area and the bottom end, and meanwhile, the phenomenon that the water discharge is unbalanced due to the fact that the pressure of a far-end pipeline is too low can be prevented.
In some embodiments, the main pipe 1 is buried horizontally at 30cm-80cm below the soil surface; the water content sensor 10 and the salinity sensor 11 are buried at 20cm-100cm below the soil surface; the number and positions of the water content sensor 10 and the salinity sensor 11 can be adjusted adaptively according to the embedded position of the main pipe 1, or a plurality of water content sensors and salinity sensors can be arranged for ensuring the accuracy of data detection.
In some embodiments, the main pipe 1, the branch pipe 2 and the capillary 3 are made of PE or PVC materials. Ensure the pipeline to have enough toughness, strength and corrosion resistance.
In some embodiments, the bore of the main tube 1 is 110-300mm; the caliber of the branch pipe 2 is 110-200mm; the caliber of the capillary tube 3 is 40-80mm.
In some embodiments, the capillary tube 3 is provided with an overwrapped filter material. The water outlet hole 16 at the capillary tube 3 is prevented from being blocked by the outer packing filter material.
In some embodiments, the main pipe 1 and the branch pipe 2 are in a straight pipe structure or a corrugated pipe structure; the capillary tube 3 adopts a bellows structure.
In some embodiments, the bellows structure of the capillary tube 3 is that a plurality of annular grooves 15 are uniformly distributed on a straight tube, and water outlets 16 are arranged in the annular grooves 15.
In some embodiments, the bellows structure of the capillary tube 3 is a straight tube provided with a screw thread groove 14 with a screw thread structure, and the water outlet hole 16 is arranged in the screw thread groove 14.
In some embodiments, the branch pipes 2 are symmetrically arranged at two sides of the main pipe 1, and one end of the pumping pipe 4 is positioned at the middle of the main pipe 1; the main pipe 1, the branch pipe 2 and the capillary 3 are in a grid structure. The pressure of each pipeline in the water injection process is more balanced, so that the water distribution is more uniform.
In some embodiments, a venturi doser 6 is provided on the pump tube 4; the venturi doser 6 is externally connected with a doser tank 7, and a flowmeter 8 is arranged between the venturi doser tank and the venturi doser tank; the dosing tank 7 and the flow meter 8 are connected to a control system 12. In some special areas, the desalting effect can be properly improved by adding the medicament, and meanwhile, the venturi dosing mode is adopted, so that extra power is not needed, and the dosage is controlled by a flowmeter. In the later stage, the dosing tank 7 can be directly replaced by a fertilizing tank to be used as an adding port of fertilizer.
The working principle is as follows:
according to the data fed back by the water content sensor 10 and the salinity sensor 11, the amount of water to be added is calculated, then the water is injected under pressure by the water pump 5, whether the dosing tank 7 needs to be started or not is judged according to specific conditions, the high evaporation capacity in arid areas is utilized by injecting water to the lower part of the soil layer, the salinity in the deep water of the soil is brought to the ground surface under the action of capillary water, and finally the formed soil salt is collected and shoveled uniformly. After the early-stage land improvement is completed, the equipment can be changed into irrigation equipment, and water can directly reach the roots of crops in an infiltrating irrigation mode, so that the evaporation of water is reduced.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A reverse salt removal method of concealed pipes for saline-alkali soil improvement is characterized in that: comprises the following steps
S1: burying pipelines at the position 30cm-80cm below the soil layer to be improved;
s2: corresponding water content sensors (10) and salt sensors (11) are arranged at the positions 20cm-100cm below the soil layer to be improved;
s3: the control system (12) is used for controlling the water pump (5) to inject water into the pipeline, and the water content sensor (10) and the salinity sensor (11) are used for feeding back the numerical value of the control system (12) to control the water injection quantity;
s4: after the first water injection operation is finished, the injected water carries the salt in the soil to rise to the surface under the action of natural sun evaporation until the value of the water content sensor (10) is recovered to the value in the conventional state; at this time, the water injection amount of the next water injection operation is further estimated according to the value fed back by the salt sensor (11); and so on until the salt content value under the required standard is reached;
s5: after the water injection operation is finished for the last time, after the soil layer surface layer is dried in the sun, uniformly collecting soil salt formed on the soil layer surface layer.
2. The salt removal method according to claim 1, wherein: after the step S1 is completed, the surface layer of the soil layer needs to be subjected to laser leveling and flattening treatment.
3. The salt removal method according to claim 1, wherein: in the process of step S3, saline-alkali soil treatment agent is injected into the pipeline.
4. The salt removal method according to claim 1, wherein: the water content sensor (10) and the salinity sensor (11) can be correspondingly arranged at a plurality of different depths and positions, the progress of the capillary phenomenon salt discharge is deduced through numerical values measured at different depths, and the detection accuracy is ensured through different positions.
5. A salt removal method according to claim 1 or 3, wherein: the pipeline in the step S1 comprises
A main pipe (1) horizontally buried under the soil surface;
the branch pipes (2) are horizontally arranged on the main pipe (1) and uniformly distributed with a plurality of branch pipes, and the connection parts of the main pipe (1) and the branch pipes (2) are provided with electric control valves (13);
the capillary tube (3) is positioned between the adjacent branch pipes (2), and the capillary tube (3) is provided with a water outlet hole (16);
the water pumping pipe (4) is connected with the main pipe (1) and provided with a water pump (5) at the outer end thereof, and the water pumping pipe (4) is provided with a flowmeter (8) and a pressure gauge (9);
the control system (12) is respectively connected with the electric control valve (13), the water pump (5), the flowmeter (8), the pressure gauge (9), the water content sensor (10) and the salinity sensor (11).
6. The salt removal method according to claim 5, wherein: the main pipe (1), the branch pipe (2) and the capillary (3) are made of PE or PVC materials; the main pipe (1) and the branch pipe (2) adopt a straight pipe structure or a corrugated pipe structure; the capillary tube (3) adopts a corrugated tube structure; the caliber of the main pipe (1) is 110-300mm; the caliber of the branch pipe (2) is 110-200mm; the caliber of the capillary tube (3) is 40-80mm; an outsourcing filter material is arranged outside the capillary tube (3).
7. The salt removal method according to claim 6, wherein: the corrugated pipe structure of the capillary tube (3) is characterized in that a plurality of annular grooves (15) are uniformly distributed on the straight pipe, and water outlets (16) are formed in the annular grooves (15).
8. The salt removal method according to claim 6, wherein: the corrugated pipe structure of the capillary tube (3) is a straight pipe provided with a thread groove (14) with a spiral structure, and the water outlet hole (16) is arranged in the thread groove (14).
9. The salt removal method according to claim 5, wherein: the branch pipes (2) are symmetrically arranged on two sides of the main pipe (1), and one end of the pumping pipe (4) is positioned in the middle of the main pipe (1); the main pipe (1), the branch pipe (2) and the capillary (3) are in a grid structure.
10. The salt removal method according to claim 5, wherein: a venturi doser (6) is arranged on the pumping pipe (4); the venturi doser (6) is externally connected with a doser tank (7), and a flowmeter (8) is arranged between the venturi doser and the doser tank; the dosing tank (7) and the flowmeter (8) are connected with a control system (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210954226.XA CN115136764B (en) | 2022-08-10 | 2022-08-10 | Concealed pipe reverse salt removal method for saline-alkali soil improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210954226.XA CN115136764B (en) | 2022-08-10 | 2022-08-10 | Concealed pipe reverse salt removal method for saline-alkali soil improvement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115136764A CN115136764A (en) | 2022-10-04 |
| CN115136764B true CN115136764B (en) | 2024-03-08 |
Family
ID=83416452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210954226.XA Active CN115136764B (en) | 2022-08-10 | 2022-08-10 | Concealed pipe reverse salt removal method for saline-alkali soil improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115136764B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765169A (en) * | 2005-08-03 | 2006-05-03 | 东营金川水土环境工程有限公司 | System engineering technology for modifying alkaline land by use of pipe drainage method |
| JP2006345761A (en) * | 2005-06-15 | 2006-12-28 | Asahi Kasei Homes Kk | Watering method and apparatus to soil |
| CN106385846A (en) * | 2016-08-30 | 2017-02-15 | 山东胜伟园林科技有限公司 | Method for retarding salt surface accumulation in saline-alkali land of Yellow River irrigation district |
| WO2017063229A1 (en) * | 2015-10-12 | 2017-04-20 | 山东胜伟园林科技有限公司 | Coastal severe saline-alkali soil improvement and vegetation construction system |
| CN207167001U (en) * | 2017-09-11 | 2018-04-03 | 宁波海逸园林工程有限公司 | Improving landscaping water and soil in saline land system |
| CN207561028U (en) * | 2017-12-12 | 2018-07-03 | 湖北南轻法麦克斯作物营养有限公司 | A kind of afforestation equipment for alkaline land improving |
| CN207720661U (en) * | 2017-12-25 | 2018-08-14 | 中国科学院地理科学与资源研究所 | Double hidden pipe salt discharges and Intelligent irrigation system |
| CN108781577A (en) * | 2018-07-03 | 2018-11-13 | 武汉轻工大学 | A kind of nanotube capillaries-hidden pipe joint soil Salt discharge method |
| CN108966717A (en) * | 2018-07-04 | 2018-12-11 | 青岛全域盐碱地稻作改良研究院有限公司 | Four-dimensional alkaline land improving method |
| CN108990460A (en) * | 2018-08-14 | 2018-12-14 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Beach saline land modification method, beach saline land structure-improved and application |
| CN210157611U (en) * | 2019-06-17 | 2020-03-20 | 齐鲁工业大学 | Salt elimination system for coastal saline-alkali soil greening |
| CN113307403A (en) * | 2021-05-26 | 2021-08-27 | 青岛科技大学 | Seawater desalination device |
| CN114467396A (en) * | 2022-02-10 | 2022-05-13 | 中国建筑土木建设有限公司 | Rapid salt elimination equipment for improving muddy saline-alkali soil and rapid salt elimination method thereof |
-
2022
- 2022-08-10 CN CN202210954226.XA patent/CN115136764B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006345761A (en) * | 2005-06-15 | 2006-12-28 | Asahi Kasei Homes Kk | Watering method and apparatus to soil |
| CN1765169A (en) * | 2005-08-03 | 2006-05-03 | 东营金川水土环境工程有限公司 | System engineering technology for modifying alkaline land by use of pipe drainage method |
| WO2017063229A1 (en) * | 2015-10-12 | 2017-04-20 | 山东胜伟园林科技有限公司 | Coastal severe saline-alkali soil improvement and vegetation construction system |
| CN106385846A (en) * | 2016-08-30 | 2017-02-15 | 山东胜伟园林科技有限公司 | Method for retarding salt surface accumulation in saline-alkali land of Yellow River irrigation district |
| CN207167001U (en) * | 2017-09-11 | 2018-04-03 | 宁波海逸园林工程有限公司 | Improving landscaping water and soil in saline land system |
| CN207561028U (en) * | 2017-12-12 | 2018-07-03 | 湖北南轻法麦克斯作物营养有限公司 | A kind of afforestation equipment for alkaline land improving |
| CN207720661U (en) * | 2017-12-25 | 2018-08-14 | 中国科学院地理科学与资源研究所 | Double hidden pipe salt discharges and Intelligent irrigation system |
| CN108781577A (en) * | 2018-07-03 | 2018-11-13 | 武汉轻工大学 | A kind of nanotube capillaries-hidden pipe joint soil Salt discharge method |
| CN108966717A (en) * | 2018-07-04 | 2018-12-11 | 青岛全域盐碱地稻作改良研究院有限公司 | Four-dimensional alkaline land improving method |
| CN108990460A (en) * | 2018-08-14 | 2018-12-14 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Beach saline land modification method, beach saline land structure-improved and application |
| CN210157611U (en) * | 2019-06-17 | 2020-03-20 | 齐鲁工业大学 | Salt elimination system for coastal saline-alkali soil greening |
| CN113307403A (en) * | 2021-05-26 | 2021-08-27 | 青岛科技大学 | Seawater desalination device |
| CN114467396A (en) * | 2022-02-10 | 2022-05-13 | 中国建筑土木建设有限公司 | Rapid salt elimination equipment for improving muddy saline-alkali soil and rapid salt elimination method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115136764A (en) | 2022-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103460843B (en) | Quick saline-alkali land desalting system method by means of concealed-tube irrigation and drainage | |
| CN100473271C (en) | System engineering method for modifying alkaline land by use of pipe drainage method | |
| CN101023732B (en) | Irrigation system | |
| CN107653931B (en) | Saline-alkali soil transformation system and method | |
| CN110521322B (en) | Saline-alkali soil improvement system and method | |
| CN206226947U (en) | A kind of saline land greening system | |
| CN106961864A (en) | The alkaline land improving system and its modification method of a kind of wells connecting with canals | |
| CN103477952A (en) | Agriculture water and soil improvement irrigation and drainage system | |
| CN103999739A (en) | North coastal region saline soil irrigation method and system in winter | |
| CN102763587A (en) | Plant root water injection irrigation system | |
| CN107347481A (en) | Casing charge for remittance earthing implant system and the method reclaimed using its outdoor pit body of progress | |
| CN115136764B (en) | Concealed pipe reverse salt removal method for saline-alkali soil improvement | |
| CN105359933B (en) | A kind of environmental irrigation system that terraced fields nutrition efficient utilizes | |
| CN107700461B (en) | Saline-alkali soil improvement system | |
| CN207443795U (en) | Two fluid osmotic pressures irrigate pipe fitting | |
| CN217850036U (en) | Concealed pipe reverse salt discharging device | |
| CN106958224A (en) | A kind of method that wetland mud is administered | |
| CN206396830U (en) | It is a kind of have fill put forward complex function be close to river water recharge system | |
| CN115176554A (en) | Drainage, salt drainage, infiltrating irrigation and fertilization integrated treatment method for saline-alkali soil improvement | |
| CN107466665A (en) | A kind of sand ground soil and water conservation system and method | |
| CN207362826U (en) | A kind of alkaline land improving system | |
| CN207219655U (en) | A kind of sand ground water and soil conservation device | |
| CN208829318U (en) | A kind of agricultural non -point pollution control system based on biomass carbon and biomass vinegar liquid | |
| CN203608647U (en) | Self-balancing soil moisture water-saving irrigation system | |
| Kumar et al. | Spatio-temporal movement of water and nitrate under different dripper discharges in drip fertigation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |