Drainage and desalination concealed conduit structure for saline-alkali soil

Abstract

The utility model provides a drainage and desalination concealed conduit structure for saline-alkali soil. The drainage cavity is formed in the middle of one side of the pipe body, and filtering holes are formed in the surface of the inner cavity wall of the drainage cavity; the limiting device is fixedly mounted on the inner surface of the drainage cavity and comprises a mounting ring block, a mounting plate, a supporting rod, a supporting plate and a circulating hole; the flow guide block is fixedly installed on the outer surface of the pipe body, a permeable layer is arranged on the outer surface of the flow guide block, and a soil layer is arranged on the outer surface of the permeable layer. According to the drainage and desalination concealed conduit structure for the saline-alkali soil, the limiting device is installed in the drainage cavity, the supporting rod of the limiting device penetrates through the filtering hole to support the supporting plate, the supporting plate supports the permeable layer and the soil layer, the permeable layer is prevented from sinking into the filtering hole due to the gravity of the soil layer, and the device is simple in structure, high in practicability and convenient to use. The circulation efficiency of water flow in the filtering holes is kept, and the salt discharging effect of the mounting pipe is kept.

Description

Technical Field

[0001] The utility model relates to the field of salt drainage pipes, in particular to a saline-alkali land drainage and desalination concealed pipe structure. Background Art

[0002] Soil salinization is a global problem, especially in coastal tidal flats, where soils are often soaked in seawater and contain large amounts of soluble salts. In recent years, the area of coastal tidal flats being reclaimed has been increasing, and a large number of them have been used for agricultural, ecological, and construction purposes. Given the poor drainage conditions, developing comprehensive technologies to accelerate the improvement of saline-alkali soils in tidal flats is an urgent need for developing the tidal flat economy.

[0003] The underground pipe drainage and salt removal technology is based on the law of water and salt migration of "salt follows water, salt follows water". The underground pipe is buried at a certain depth in the field. The water seeping from the upper layer or the water rising from the lower layer enters the underground pipe and is discharged from the field through gravity or forced drainage, thereby removing the salt and improving the saline-alkali land.

[0004] However, traditional concealed pipes, such as a saline-alkali land drainage and desalination concealed pipe structure with publication number CN220823675U, not only improve the strength of the concealed pipe by using a reinforcing ring, but also form a diversion trough to facilitate drainage. At the same time, the surface layer uses an elastic permeable layer to make the bottom of the elastic permeable layer more convex when subjected to soil pressure, making it easier for the convex bottom to collect water and effectively accelerating the fall of water, thereby improving the salt discharge efficiency. When salt water penetrates through the elastic permeable layer, it is convenient for water to fall into the diversion trough. However, as the soil accumulates, the gravity of the soil presses the permeable layer downward, and there is a situation where the permeable layer is squeezed into the inside of the seepage hole, resulting in the accumulation of the seepage hole, reducing the drainage efficiency, and the seepage hole cannot fully play its role, resulting in poor salt discharge effect.

[0005] Therefore, it is necessary to provide a saline-alkali land drainage and desalination underground pipe structure to solve the above technical problems. Utility Model Content

[0006] The utility model provides a saline-alkali land drainage and desalination concealed pipe structure, which solves the problem that as the soil accumulates, the gravity of the soil presses the permeable layer downward, and the permeable layer is squeezed into the seepage holes, resulting in accumulation of the seepage holes, reducing the drainage efficiency, and the seepage holes cannot fully function, resulting in poor salt drainage effect.

[0007] In order to solve the above technical problems, the utility model provides a saline-alkali land drainage and desalination concealed pipe structure, comprising: a pipe body;

[0008] A drainage cavity is provided in the middle of one side of the tube body, and a filter hole is provided on the inner wall surface of the drainage cavity;

[0009] A restriction device, the restriction device being fixedly mounted on the inner surface of the drainage cavity, the restriction device comprising a mounting ring block, a mounting plate, a support rod, a support plate and a flow hole;

[0010] A guide block is fixedly mounted on the outer surface of the pipe body, the outer surface of the guide block is provided with a water-permeable layer, and the outer surface of the water-permeable layer is provided with a soil layer.

[0011] Preferably, the mounting ring block is fixedly installed on the inner surface of the drainage chamber, the mounting plate is fixedly installed on the outer surface of the mounting ring block, the two support rods are respectively fixedly installed on both sides of the surface of the mounting plate, the support plate is fixedly installed on one end of the support rod, and the flow hole is opened on the surface of the support plate.

[0012] Preferably, the guide block is in the shape of a ring block, and both sides of the outer surface of the guide block are inclined.

[0013] Preferably, the diameter of the support rod is smaller than the diameter of the filter hole.

[0014] Preferably, the permeable layer is made of geotextile.

[0015] Preferably, a collecting cover is fixedly mounted on the outer surface of the support rod, a reserved groove is provided on the top of the collecting cover, a connecting hole is provided in the middle of the bottom of the collecting cover, and guide holes are provided on both sides of the bottom of the collecting cover.

[0016] Preferably, the collecting cover is in the shape of a truncated cone.

[0017] Compared with related technologies, the saline-alkali land drainage and desalination concealed pipe structure provided by the present invention has the following beneficial effects:

[0018] The utility model provides a saline-alkali land drainage and desalination concealed pipe structure, which installs a limiting device inside the drainage cavity, and the support rod of the limiting device passes through the filter hole to support the support plate, and the support plate supports the permeable layer and the soil layer, so as to prevent the permeable layer from sinking into the filter hole due to the gravity of the soil layer. The device has a simple structure and strong practicality, maintains the circulation efficiency of the water flow inside the filter hole, and maintains the salt drainage effect of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a first embodiment of a saline-alkali land drainage and desalination concealed pipe structure provided by the utility model;

[0020] Figure 2 for Figure 1 An enlarged schematic diagram of point A is shown;

[0021] Figure 3This is a structural schematic diagram of a second embodiment of a saline-alkali land drainage and desalination concealed pipe structure provided by the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the collection cover structure shown.

[0023] Numbers in the figure: 1. pipe body, 2. drainage chamber, 3. filter hole, 4. guide block, 5. permeable layer, 6. soil layer, 7. limiting device, 71. mounting ring block, 72. mounting plate, 73. support rod, 74. support plate, 75. flow hole, 8. collecting cover, 9. reserved groove, 10. connecting hole, 11. guide hole. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0025] First embodiment

[0026] Please refer to Figure 1 and Figure 2 ,in, Figure 1 This is a structural schematic diagram of a first embodiment of a saline-alkali land drainage and desalination concealed pipe structure provided by the utility model; Figure 2 for Figure 1 The enlarged schematic diagram of point A is shown. A saline-alkali land drainage and desalination underground pipe structure comprises: a pipe body 1;

[0027] A drainage cavity 2 is provided in the middle of one side of the tube body 1, and a filter hole 3 is provided on the inner wall surface of the drainage cavity 2;

[0028] The limiting device 7 is fixedly mounted on the inner surface of the drainage chamber 2 and includes a mounting ring block 71, a mounting plate 72, a support rod 73, a support plate 74, and a flow hole 75;

[0029] The guide block 4 is fixedly mounted on the outer surface of the pipe body 1 . The outer surface of the guide block 4 is provided with a water-permeable layer 5 , and the outer surface of the water-permeable layer 5 is provided with a soil layer 6 .

[0030] The mounting ring block 71 is fixedly mounted on the inner surface of the drainage chamber 2, the mounting plate 72 is fixedly mounted on the outer surface of the mounting ring block 71, the two support rods 73 are respectively fixedly mounted on both sides of the surface of the mounting plate 72, the support plate 74 is fixedly mounted on one end of the support rod 73, and the flow hole 75 is opened on the surface of the support plate 74.

[0031] The guide block 4 is in a ring shape, and both sides of the outer surface of the guide block 4 are inclined.

[0032] The diameter of the support rod 73 is smaller than the diameter of the filter hole 3 .

[0033] The permeable layer 5 is made of geotextile.

[0034] The permeable layer 5 can use non-woven geotextiles and polyester non-woven fabrics; non-woven geotextiles are permeable geosynthetics made of synthetic fibers through needle punching or weaving. The finished product is cloth-like, generally 4-6 meters wide and 50-100 meters long. It has excellent filtering, isolation, reinforcement and protection functions, high tensile strength, good permeability, high temperature resistance, freezing resistance, aging resistance, corrosion resistance and other characteristics.

[0035] Polyester nonwoven fabrics are made of reinforced polyester continuous filaments. They boast a tensile strength of ≥8 kN / m and an elongation of 40-60%, fully meeting the technical requirements for geotextiles in the "Technical Specifications for the Application of Highway Geosynthetics." They offer excellent waterproofing and thermal insulation properties and are widely used in railway, highway, sports venues, dams, hydraulic structures, tunnels, coastal mudflats, and reclamation projects.

[0036] Geotextile Geotextile is a permeable material with excellent filtration and isolation functions. At the same time, due to its fluffy structure, it also has good drainage performance. It has good puncture resistance, friction coefficient and tensile strength, so it has good protection performance and geotechnical reinforcement effect. It has good filtration performance and can effectively filter out moisture and salt in the soil. In actual application, the appropriate fabric can be selected according to specific needs and usage scenarios.

[0037] The working principle of the saline-alkali land drainage and desalination concealed pipe structure provided by the utility model is as follows:

[0038] During operation, water and salt first penetrate through the soil layer 6 to the permeable layer 5, and then seep into the filter holes 3 from under the permeable layer 5 and flow into the interior of the drainage chamber 2 and are discharged.

[0039] The support rod 73 passes through the filter hole 3 and is connected to the support plate 74 , and the support plate 74 supports the water-permeable layer 5 .

[0040] Compared with related technologies, the saline-alkali land drainage and desalination concealed pipe structure provided by the present invention has the following beneficial effects:

[0041] The utility model provides a saline-alkali land drainage and desalination concealed pipe structure, by installing a limiting device 7 inside the drainage chamber 2, the support rod 73 of the limiting device 7 passes through the filter hole 3 to support the support plate 74, the support plate 74 holds the permeable layer 5 and the soil layer 6, and prevents the permeable layer 5 from sinking into the filter hole 3 due to the gravity of the soil layer 5. The device has a simple structure and strong practicality, maintains the circulation efficiency of the water flow inside the filter hole 3, and maintains the salt drainage effect of the pipe.

[0042] Second embodiment

[0043] Please refer to Figure 3 and Figure 4 Based on the first embodiment of this application, which provides a saline-alkali land drainage and desalination underground pipe structure, the second embodiment of this application provides another saline-alkali land drainage and desalination underground pipe structure. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0044] Specifically, the difference of the saline-alkali land drainage and desalination concealed pipe structure provided in the second embodiment of the present application is that, in a saline-alkali land drainage and desalination concealed pipe structure, a collecting cover 8 is fixedly installed on the outer surface of the support rod 73, a reserved groove 9 is provided on the top of the collecting cover 8, a connecting hole 10 is provided in the middle of the bottom of the collecting cover 8, and guide holes 11 are provided on both sides of the bottom of the collecting cover 8.

[0045] The collecting cover 8 is in the shape of a truncated cone.

[0046] The working principle of the saline-alkali land drainage and desalination concealed pipe structure provided by the utility model is as follows:

[0047] During operation, a plurality of collecting covers 8 are first installed on the surface of the support rod 73. The collecting covers 8 collect filtered drainage and salt. The water and salt are discharged into the interior of the tube body 1 along the guide hole 11. The collecting covers 8 collect fallen soil and other impurities.

[0048] Compared with related technologies, the saline-alkali land drainage and desalination concealed pipe structure provided by the present invention has the following beneficial effects:

[0049] The utility model provides a saline-alkali land drainage and desalination concealed pipe structure, by installing multiple collection covers 8 on the surface of the support rod 73, the collection cover 8 collects filtered drainage and salt, the water and salt are discharged into the interior of the pipe body 1 along the guide hole 11, and the collection cover 8 collects fallen soil and other impurities. The device has a simple structure and strong practicality, and can filter soil and other impurities in multiple layers to avoid soil blockage and soil loss, thereby improving the filtering effect of the device.

[0050] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A saline-alkali land drainage and desalination underground pipe structure, characterized in that: include: tube body; A drainage cavity is provided in the middle of one side of the tube body, and a filter hole is provided on the inner wall surface of the drainage cavity; A restriction device, the restriction device being fixedly mounted on the inner surface of the drainage cavity, the restriction device comprising a mounting ring block, a mounting plate, a support rod, a support plate and a flow hole; A guide block is fixedly mounted on the outer surface of the pipe body, the outer surface of the guide block is provided with a water-permeable layer, and the outer surface of the water-permeable layer is provided with a soil layer.

2. The saline-alkali land drainage and desalination underground pipe structure according to claim 1, characterized in that: The mounting ring block is fixedly installed on the inner surface of the drainage cavity, the mounting plate is fixedly installed on the outer surface of the mounting ring block, the two support rods are respectively fixedly installed on both sides of the surface of the mounting plate, the support plate is fixedly installed on one end of the support rod, and the flow hole is opened on the surface of the support plate.

3. The saline-alkali land drainage and desalination underground pipe structure according to claim 1, characterized in that: The guide block is in the shape of a ring block, and both sides of the outer surface of the guide block are inclined.

4. The saline-alkali land drainage and desalination underground pipe structure according to claim 1, characterized in that: The diameter of the support rod is smaller than the diameter of the filter hole.

5. The saline-alkali land drainage and desalination underground pipe structure according to claim 1, characterized in that: The permeable layer is made of geotextile.

6. The saline-alkali land drainage and desalination underground pipe structure according to claim 1, characterized in that: A collecting cover is fixedly mounted on the outer surface of the support rod, a reserved groove is provided on the top of the collecting cover, a connecting hole is provided in the middle of the bottom of the collecting cover, and guide holes are provided on both sides of the bottom of the collecting cover.

7. The saline-alkali land drainage and desalination underground pipe structure according to claim 6, characterized in that: The collecting cover is in a frustum shape.

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