An outer filter layer structure of a buried pipe for rapid salt and alkali removal in saline-alkali soil

Abstract

This utility model discloses a submerged pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land. The structure includes an outer filter layer, with a desalination submerged pipe inserted inside. A collection tray is located on the outer side of the outer filter layer structure. A mounting plate is fixed to the desalination submerged pipe on the outer filter layer structure. Tie bars are inserted into the mounting plate, and one side of the mounting plate is covered with a filter geotextile. This submerged pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land utilizes a ring-shaped support structure formed by the tie bars and mounting plate. This stabilizes the wrapping shape of the filter geotextile and enhances the structural strength of the desalination submerged pipe. The clamping sleeve ensures precise positioning of the filter geotextile. The rational design of the collection tray improves the collection and discharge efficiency of saline-alkali content. The overall structure works synergistically to significantly improve the speed and effect of desalination and alkali reduction in saline-alkali land, extend the service life of the submerged pipe system, and reduce maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment, specifically to a hidden pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land. Background Technology

[0002] The method of removing salt by burying underground pipe networks under the saline-alkali soil layer is widely used. This technology involves burying the underground pipes about 1 meter below the saline-alkali soil layer. The pipe walls are covered with numerous micropores. The underground burial of the pipes avoids occupying agricultural land and greatly reduces construction and maintenance costs. Through artificial irrigation or rainwater flushing, the saline water in the soil is introduced into the drainage pipe through the micropores on the pipe wall and discharged, achieving the effect of washing away salt. However, the underground pipes used in this method are mostly smooth-surfaced. The smooth-surfaced pipes come into direct contact with the silt through the filter layer, and the micropores on the pipes are easily blocked, affecting the salt removal efficiency.

[0003] To solve the above problems, after searching, Chinese Patent No. CN214014944U was found, which discloses a drainage pipe for saline-alkali land. The paper includes a water suction pipe and a water collection pipe. The water suction pipe is composed of a perforated corrugated plastic pipe, an inner lining pipe, geotextile, and an outer casing pipe. The inner lining pipe is fitted on the outside of the perforated corrugated plastic pipe, the geotextile covers the outer surface of the inner lining pipe, and the outer casing pipe is fitted on the outside of the geotextile. Although the above-mentioned device improves the efficiency of salt removal, in actual use, the alkaline solution collection range is narrow, and the speed and effect of salt removal and alkali reduction are slow. Utility Model Content

[0004] The purpose of this invention is to provide a hidden pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, a submerged pipe with an external filter layer structure for rapid desalination and alkali reduction in saline-alkali land is provided. The structure includes a submerged pipe with a desalination submerged pipe inserted inside, and a liquid collection plate on the outside of the submerged pipe with a matching plate fixed to the desalination submerged pipe. The matching plate is reinforced with reinforcing bars, and one side of the matching plate is covered with a filter geotextile.

[0006] Furthermore, a sand and gravel filter material storage space is formed between the filter geotextile and the salt drainage pipe, and multiple sets of holes are equally spaced on the salt drainage pipe.

[0007] Furthermore, the filter geotextile is wrapped around the outer ring surface of the salt drainage pipe, and multiple sets of clamps are equidistantly arranged on the filter geotextile, the clamps being cylindrical and sleeved on the reinforcing bars.

[0008] Furthermore, the tie rods are arranged in multiple sets at equal intervals along the outer ring surface of the salt drainage pipe, and the salt drainage pipe is provided with mounting plates on both sides, and multiple sets of interlocking holes are opened at equal intervals on the mounting plates.

[0009] Furthermore, the tie rod passes through the two sets of mounting plates and is fixed with nuts, and the length of the tie rod is less than the length of the salt drainage pipe.

[0010] Furthermore, the multiple sets of tie rods constitute the annular support structure of the salt drainage pipe, and the filter geotextile on the outside of the salt drainage pipe is limited and fixed by the clamps and tie rods.

[0011] Furthermore, the liquid collection tray has a matching port in the middle, and multiple sets of connecting ports are equally spaced on the matching port, and a collection space is provided inside the matching port.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This solution utilizes the dual filtration effect of the filter geotextile and sand / gravel storage space within the external filter layer structure to prevent clogging of the salt drainage pipes at the source, ensuring unobstructed salt drainage channels. The ring-shaped support structure formed by the reinforcing bars and the mounting trays stabilizes the wrapping shape of the filter geotextile and enhances the structural strength of the salt drainage pipes. The clamping sleeves ensure precise positioning of the filter geotextile, and the rational design of the collection tray improves the efficiency of salt collection and discharge. The overall structure works in synergy to significantly improve the speed and effect of salt drainage and alkali reduction in saline-alkali land, extend the service life of the underground pipe system, and reduce maintenance costs.

[0013] 2. This solution can temporarily store the collected alkaline solution through the collection space in the collection tray, preventing alkaline solution leakage and backflow, and further ensuring the salt removal and alkali reduction effect. The overall structural design takes into account the collection range, anti-clogging, ease of installation and transmission stability, effectively improving the overall efficiency and reliability of the underground pipe system for salt removal and alkali reduction. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the liquid collection tray structure of this utility model; Figure 3 This is a cross-sectional view of the structure of this utility model; Figure 4 This is a schematic diagram of the structure of the present invention, including the mounting tray and its connection structure. Figure 5 This is a schematic diagram of the filter layer structure surrounding the structural tube of this utility model; Figure 6 This is a bottom view of the structure of this utility model.

[0015] The diagram is labeled as follows: 100, salt drainage pipe; 200, filter layer structure outside the pipe; 21, loading tray; 22, tie rod; 23, filter geotextile; 231, clamping sleeve; 24, sand and gravel filter media storage space; 300, liquid collection tray; 301, loading port; 3011, connecting port; 302, collection space. Detailed Implementation

[0016] Please see Figure 1-6 This utility model provides a concealed pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land. It includes a pipe outer filter layer structure 200, a desalination pipe 100 inserted inside the pipe outer filter layer structure 200, a liquid collection plate 300 on the outside of the pipe outer filter layer structure 200, a mounting plate 21 on the pipe outer filter layer structure 200, the mounting plate 21 being fixed on the desalination pipe 100, a tie rod 22 inserted on the mounting plate 21, and a filter geotextile 23 covering one side of the mounting plate 21.

[0017] As a preferred implementation, a sand and gravel filter material storage space 24 is formed between the filter geotextile 23 and the salt drainage pipe 100, and multiple sets of holes are equally spaced on the salt drainage pipe 100.

[0018] The filter geotextile 23 is wrapped around the outer ring surface of the salt drainage pipe 100, and multiple sets of clamps 231 are provided at equal intervals on the filter geotextile 23. The clamps 231 are cylindrical and sleeved on the tie bar 22.

[0019] The tie rods 22 are arranged in multiple sets at equal intervals along the outer ring surface of the salt drainage pipe 100. Both sides of the salt drainage pipe 100 are provided with mounting plates 21, and multiple sets of interlocking holes are opened at equal intervals on the mounting plates 21.

[0020] The tie rod 22 passes through the two sets of mounting plates 21 and is fixed by nuts, and the length of the tie rod 22 is less than the length of the salt drainage pipe 100.

[0021] Multiple sets of tie bars 22 form a ring support structure for the salt drainage pipe 100, and the filter geotextile 23 on the outside of the salt drainage pipe 100 is limited and fixed by the clamp 231 and tie bars 22.

[0022] Working principle: Saline groundwater seeps into the drainage pipe 100 buried in the soil under the action of gravity. Multiple sets of holes evenly spaced on the outer ring of the drainage pipe 100 provide channels for salt migration. The outer filter layer structure 200 installed on its outside plays the core filtration and support role. The outer filter layer structure 200 is fixed to the drainage pipe 100 by mounting plates 21. Multiple sets of through holes evenly spaced on the mounting plates 21 on both sides of the drainage pipe 100 allow tie rods 22 to pass through. After passing through two sets of mounting plates 21, the tie rods 22 are fixed by nuts. The multiple sets of tie rods 22 are evenly spaced along the outer ring of the drainage pipe 100. The geotextile forms a ring support structure. The geotextile 23 is wrapped around the outer ring surface of the salt drainage pipe 100. Multiple sets of cylindrical sleeves 231, which are equidistantly arranged on the geotextile 23, are connected to the tie rod 22 to limit and fix the geotextile 23. The sand and gravel filter material storage space 24 formed between the geotextile 23 and the salt drainage pipe 100 can be filled with sand and gravel filter material. Together with the geotextile 23, the geotextile 23 blocks the mud and sand and fine soil particles in the soil, preventing them from entering the holes of the salt drainage pipe 100 and causing siltation. The saline groundwater filtered by the geotextile 23 and the sand and gravel filter material smoothly enters the interior of the salt drainage pipe 100 through the holes. The saline solution is collected by the collection tray 300 on the outside of the pipe-wrapped filter layer structure 200. The matching port 301 and connecting port 3011 of the collection tray 300 facilitate the connection of various components and the flow of fluid. The collection space 302 temporarily stores the saline solution and guides it out, ultimately achieving rapid desalination and alkali reduction. Through the dual filtration effect of the filter geotextile 23 and the sand and gravel filter material stacking space 24 in the pipe-wrapped filter layer structure 200, the clogging of the desalination pipe 100 is avoided from the source, ensuring the smooth flow of the desalination channel. The ring support structure formed by the tie 22 and the matching tray 21 not only stabilizes the wrapping shape of the filter geotextile 23, but also enhances the structural strength of the desalination pipe 100. The setting of the clamp 231 ensures the precise positioning of the filter geotextile 23. The reasonable design of the collection tray 300 improves the collection and discharge efficiency of saline solution. The overall structure works together to significantly improve the speed and effect of desalination and alkali reduction in saline-alkali land, extend the service life of the pipe system, and reduce maintenance costs.

[0023] In a preferred embodiment, the liquid collection tray 300 has a matching port 301 in the middle, and multiple sets of connecting ports 3011 are equally spaced on the matching port 301, and a collection space 302 is provided inside the matching port 301.

[0024] like Figure 1-2As shown: The C-shaped design of the collection tray 300, which wraps around the outer filter layer structure 200 of the pipe, maximizes the fit with the outer filter layer structure 200, expands the collection range of alkaline solution in the soil, and improves collection efficiency. The collection tray 300 is equipped with a filter screen, which can effectively prevent soil from entering the interior of the collection tray 300, avoid clogging of the collection space 302 and the connecting port 3011, and ensure smooth flow of alkaline solution. The connecting port 301 in the middle facilitates the docking and installation of the collection tray 300 and the outer filter layer structure 200 of the pipe. Multiple sets of connecting ports 3011 equidistantly opened on the connecting port 301 can realize the coordinated connection of multiple sets of components, improve the flexibility and efficiency of alkaline solution transmission. The collection space 302 can temporarily store the collected alkaline solution, prevent alkaline solution leakage and backflow, and further ensure the desalination and alkali reduction effect. The overall structural design takes into account the collection range, anti-clogging, installation convenience and transmission stability, effectively improving the overall efficiency and reliability of the underground pipe system for desalination and alkali reduction.

Claims

1. A concealed pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land, comprising an outer filter layer structure (200), characterized in that: The filter layer structure (200) is internally interspersed with a salt drainage pipe (100), and a liquid collection plate (300) is provided on the outside of the filter layer structure (200). The filter layer structure (200) is provided with a mounting plate (21), and the mounting plate (21) is fixed on the salt drainage pipe (100). The mounting plate (21) is interspersed with a tie rod (22), and one side of the mounting plate (21) is covered with a water-filtering geotextile (23).

2. The concealed pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land according to claim 1, characterized in that: The filter geotextile (23) and the salt drainage pipe (100) form a sand and gravel filter material storage space (24), and multiple sets of holes are equally spaced on the salt drainage pipe (100).

3. The concealed pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land according to claim 2, characterized in that: The filter geotextile (23) is wrapped around the outer ring surface of the salt drainage pipe (100), and multiple sets of clips (231) are provided at equal intervals on the filter geotextile (23). The clips (231) are cylindrical and sleeved on the tie bar (22).

4. The concealed pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land according to claim 3, characterized in that: The tie rods (22) are arranged in multiple groups at equal intervals along the outer ring surface of the salt drainage pipe (100). Both sides of the salt drainage pipe (100) are provided with mounting plates (21), and multiple sets of interlocking holes are opened at equal intervals on the mounting plates (21).

5. The concealed pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land according to claim 4, characterized in that: The tie rod (22) passes through the two sets of mounting plates (21) and is fixed by nuts, and the length of the tie rod (22) is less than the length of the salt drainage pipe (100).

6. The concealed pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land according to claim 5, characterized in that: Multiple sets of the tie bars (22) form a ring support structure for the salt drainage pipe (100), and the filter geotextile (23) on the outside of the salt drainage pipe (100) is limited and fixed by the clamp (231) and the tie bars (22).

7. The concealed pipe outer filter layer structure for rapid desalination and alkali reduction in saline-alkali land according to claim 1, characterized in that: The liquid collection tray (300) has a filling port (301) in the middle, and multiple sets of connecting ports (3011) are equally spaced on the filling port (301). A collection space (302) is provided inside the filling port (301).

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