A saline-alkali soil salt draining system

Abstract

The utility model discloses a kind of saline-alkali soil salt discharge systems, it is related to saline-alkali soil salt discharge technical field, including saline-alkali soil, the inside of saline-alkali soil is provided with buried pipe component, the upper of buried pipe component is covered with planting soil, one end of buried pipe component is connected with drainage component, buried pipe component includes buried pipe body, and buried pipe body is buried in the inside of saline-alkali soil.The saline-alkali soil salt discharge system is realized by setting the structure of reverse osmosis membrane and water-permeable geotextile wrapped outside buried pipe body, and matched flow guide system achieves good effect, water-permeable geotextile can filter and block sandy soil, reduce its into buried pipe body, reverse osmosis membrane can prevent water in buried pipe from reverse osmosis back to soil, water enters buried pipe collection and discharge through honeycomb hole, also flow to vertical flow guide well, effectively guide saline-alkali soil excess moisture to discharge, reduce soil salinity, improve planting soil environment, create favorable conditions for crop growth, improve saline-alkali soil utilization rate and crop yield.

Description

Technical Field

[0001] This utility model relates to the field of saline-alkali land desalination technology, specifically a saline-alkali land desalination system. Background Technology

[0002] With population growth and socio-economic development, arable land area is decreasing and land quality is declining, leading to increasingly serious soil salinization problems globally. Saline-alkali land, as a potential resource, is crucial for protecting arable land and achieving sustainable agricultural development. The main causes of saline-alkali soil formation are rising groundwater levels, increased mineralization, coupled with drought and strong evaporation, leading to the migration and accumulation of salt from deep soil layers to the topsoil. Existing technologies, such as excavating saline-alkali land, laying mulch to separate the base soil layer from the planting soil layer, and installing underground drainage pipes, have shown some improvement effects, but limitations remain. In the face of waterlogging and backflow problems that affect salt removal efficiency, existing technologies offer the following solutions: First, physical improvement methods, such as deep plowing and soil replacement, but these are costly and can damage soil structure. Second, chemical improvement methods, such as applying gypsum and phosphogypsum amendments, but long-term use may lead to soil compaction. Third, biological improvement methods, such as planting salt-tolerant plants, but these are slow to take effect. Fourth, engineering drainage methods, such as underground pipe salt drainage systems, but these are prone to causing waterlogging due to poor drainage. Among these, underground pipe salt drainage systems are widely used due to their ease of construction, but their simple drainage design is difficult to cope with complex saline-alkali environments.

[0003] Existing underground pipe salt drainage systems have the following drawbacks: drainage pipes are prone to blockage leading to waterlogging; they lack anti-backflow design, allowing salt to seep back into the planting layer with the accumulated water; they do not consider soil stratification characteristics; and their salt drainage efficiency is low. Therefore, we need a salt drainage system for saline-alkali land. Utility Model Content

[0004] The purpose of this invention is to provide a salt drainage system for saline-alkali land to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a saline-alkali land desalination system, comprising saline-alkali land soil, wherein a buried pipe assembly is installed inside the saline-alkali land soil, the buried pipe assembly is covered with planting soil, one end of the buried pipe assembly is connected to a drainage component, the buried pipe assembly includes a buried pipe body, and the buried pipe body is buried inside the saline-alkali land soil, the outer wall of the buried pipe body is provided with honeycomb holes, and the outer wall of the buried pipe body is sequentially wrapped with a reverse osmosis membrane and a permeable geotextile.

[0006] Preferably, the concealed pipe body has multiple honeycomb holes, and the multiple honeycomb holes account for 15% to 20% of the concealed pipe body.

[0007] Preferably, the underground pipe body is wrapped by a reverse osmosis membrane and a permeable geotextile, with the reverse osmosis membrane positioned between the underground pipe body and the permeable geotextile, and the permeable geotextile being the outermost layer.

[0008] Preferably, the drainage assembly includes a vertical diversion well, which is located inside the saline-alkali soil. A mounting box is fixedly connected to the top of the vertical diversion well. A water pump is installed inside the mounting box, and a water pumping pipe is connected to the input end of the water pump, extending to the vertical diversion well. A side plate frame is also provided inside the vertical diversion well. A sliding rod is fixedly connected inside the side plate frame, and a movable plate is slidably connected to the outer wall of the sliding rod. A sliding groove is provided inside the side plate frame. A float is fixedly connected to one side of the movable plate, and a support rod is fixedly connected to the top of the movable plate. A movable seat is provided at the top of the support rod, and a first contact piece is fixedly connected to the top of the movable seat. A box body is fixedly connected to one side of the mounting box, and a second contact piece is provided inside the box body corresponding to the first contact piece.

[0009] Preferably, the water pump is connected to the vertical diversion well via a water pumping pipe, and one end of the water pumping pipe is fixedly connected to the input end of the water pump, while the other end extends to the vertical diversion well to extract water from the diversion well.

[0010] Preferably, the movable plate forms a sliding structure with a sliding groove and a sliding rod, and the outer diameter of the sliding rod matches the inner diameter of the sliding groove, and the outer wall of the sliding rod fits against the inner wall of the sliding groove, so that the movable plate can slide up and down along the sliding rod by relying on the sliding groove.

[0011] Preferably, the first contact piece is disposed on the movable base, and the second contact piece is disposed on the housing. When the movable base rises with the water level, the movable base drives the first contact piece to contact the second contact piece to form an electrical connection structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In the scheme of this application: 1. To address the problems of sand clogging underground pipes and water backflow affecting drainage efficiency in existing saline-alkali land drainage technologies, this application achieves good results by setting up a structure in which the underground pipe body is wrapped with a reverse osmosis membrane and a permeable geotextile, along with a matching flow guiding system. The permeable geotextile can filter and block sand, reducing its entry into the underground pipe body, while the reverse osmosis membrane can prevent water from seeping back into the soil. Water enters the underground pipe through honeycomb pores for collection and discharge, and also flows to the vertical flow guiding well, effectively guiding excess water out of saline-alkali land, reducing soil salinity, improving the planting soil environment, creating favorable conditions for crop growth, and increasing the utilization rate of saline-alkali land and crop yield. 2. To address the problem in existing technologies where operators frequently need to manually start and stop the water pump when the water level in a vertical diversion well changes, which is time-consuming, labor-intensive, and difficult to control accurately and promptly, this application achieves automatic control by setting up a structure including a float, a movable plate, a support rod, a movable seat, and contact plates. When the water level in the diversion well increases, the float rises, causing the movable plate to slide along the slide rod. The support rod then pushes the movable seat, causing the first and second contact plates to make contact and energize, starting the water pump to pump water. When the water level drops, the two contact plates disconnect, and the water pump stops. This design eliminates the need for frequent manual operation, automatically starts and stops the water pump according to the water level, and effectively and promptly adjusts the water level, improving drainage efficiency and accuracy while reducing labor costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the concealed pipe assembly structure of this utility model; Figure 3 This is a schematic diagram of the soil and structure of saline-alkali land according to this utility model; Figure 4 This is a schematic diagram of the drainage component structure of this utility model.

[0014] In the diagram: 1. Saline-alkali soil; 2. Underground pipe assembly; 201. Underground pipe body; 202. Honeycomb pores; 203. Reverse osmosis membrane; 204. Permeable geotextile; 3. Planting soil; 4. Drainage assembly; 401. Vertical diversion well; 402. Mounting box; 403. Water pump; 404. Water pumping pipe; 405. Side plate frame; 406. Sliding rod; 407. Moving plate; 408. Slide groove; 409. Float; 410. Support rod; 411. Moving base; 412. First contact piece; 413. Box body; 414. Second contact piece. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model embodiment provides a salt drainage system for saline-alkali land, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the system includes saline-alkali soil 1, with a concealed pipe assembly 2 installed inside the soil 1. Planting soil 3 covers the concealed pipe assembly 2, and one end of the assembly is connected to a drainage component 4. The concealed pipe assembly 2 includes a concealed pipe body 201, which is buried inside the saline-alkali soil 1. The outer wall of the concealed pipe body 201 has honeycomb holes 202. A reverse osmosis membrane 203 and a permeable geotextile 204 are sequentially wrapped around the outer wall of the concealed pipe body 201. External water is poured into the saline-alkali soil 1, causing water to seep into the planting soil 3. The water will seep downwards, and the permeable geotextile 204 can filter and block the sand, allowing the water to seep directly downwards and reducing the amount of sand entering the underground pipe body 201. At this time, the reverse osmosis membrane 203 can prevent the water in the underground pipe body 201 from seeping back into the planting soil 3. Finally, the water enters the underground pipe body 201 through the honeycomb holes 202 on the underground pipe body 201 for collection and discharge. In addition, the water in the underground pipe body 201 flows into the vertical diversion well 401.

[0017] Further, such as Figure 2 and Figure 3 As shown, there are multiple honeycomb holes 202 on the main body 201 of the concealed pipe, and the multiple honeycomb holes 202 account for 15% to 20% of the main body 201 of the concealed pipe. By opening multiple honeycomb holes 202 on the main body 201 of the concealed pipe, brine can be collected and discharged by relying on the honeycomb holes 202.

[0018] Further, such as Figure 2 and Figure 3 As shown, the underground pipe body 201 is wrapped by a reverse osmosis membrane 203 and a permeable geotextile 204. The reverse osmosis membrane 203 is placed between the underground pipe body 201 and the permeable geotextile 204, with the permeable geotextile 204 on the outermost layer and the reverse osmosis membrane 203 in the middle. This effectively blocks water infiltration and prevents the underground pipe body 201 from being eroded. The outermost permeable geotextile 204 can filter impurities, allowing water to pass through smoothly, while protecting the reverse osmosis membrane 203 and extending the service life of the entire underground pipe system.

[0019] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the drainage component 4 includes a vertical diversion well 401, which is located inside the saline-alkali soil 1. A mounting box 402 is fixedly connected to the top of the vertical diversion well 401. A water pump 403 is installed inside the mounting box 402. A water pump 404 is connected to the input end of the water pump 403 and extends to the vertical diversion well 401. A side plate frame 405 is also installed inside the vertical diversion well 401. A sliding rod 406 is fixedly connected inside the side plate frame 405. A movable plate 407 is slidably connected to the outer wall of the mounting box 402. A sliding groove 408 is provided inside the side plate frame 405. A float 409 is fixedly connected to one side of the movable plate 407. A support rod 410 is fixedly connected to the top of the movable plate 407. A movable seat 411 is provided on the top of the support rod 410. A first contact piece 412 is fixedly connected to the top of the movable seat 411. A box body 413 is fixedly connected to one side of the mounting box 402. A second contact piece 414 is provided inside the box body 413 corresponding to the first contact piece 412.

[0020] Further, such as Figure 3 and Figure 4 As shown, the water pump 403 is connected to the vertical diversion well 401 through the water pumping pipe 404. One end of the water pumping pipe 404 is fixedly connected to the input end of the water pump 403, and the other end extends to the vertical diversion well 401 to pump water from the diversion well. The water pump 403 is connected to the vertical diversion well 401 through the water pumping pipe 404, which can efficiently pump out the water accumulated in the diversion well, reduce the water level in the well in time, avoid excessive water accumulation from affecting the surrounding environment and facilities, and ensure smooth drainage in the area.

[0021] Further, such as Figure 3 and Figure 4 As shown, the movable plate 407 forms a sliding structure with the slide rod 406 via the slide groove 408, and the outer diameter of the slide rod 406 matches the inner diameter of the slide groove 408. The outer wall of the slide rod 406 is fitted to the inner wall of the slide groove 408. The movable plate 407 can slide up and down along the slide rod 406 by relying on the slide groove 408, which strengthens the connection between the movable plate 407 and the slide rod 406, and allows the movable plate 407 to slide along the outer wall of the slide rod 406 by relying on the slide groove 408.

[0022] Further, such as Figure 3 and Figure 4 As shown, the first contact piece 412 is disposed on the movable base 411, and the second contact piece 414 is disposed on the housing 413. When the movable base 411 rises with the water level, the movable base 411 drives the first contact piece 412 and the second contact piece 414 to contact each other to form an electrical connection structure. The circuit can be precisely controlled to turn on and off according to the rise and fall of the water level, so as to realize the opening and closing of the water pump 403.

[0023] Working principle: During use, external water is poured into the saline-alkali soil 1, causing the water in the planting soil 3 to seep downwards. The permeable geotextile 204 filters and blocks the sand, allowing the water to seep directly downwards, reducing the amount of sand entering the underground pipe body 201. The reverse osmosis membrane 203 prevents water in the underground pipe body 201 from seeping back into the planting soil 3. Finally, water enters the underground pipe body 201 through the honeycomb holes 202 for collection and discharge. Furthermore, the water in the underground pipe body 201 flows into the vertical diversion well 401. If the water level in the vertical diversion well 401 increases, the float 409 will... Under the action of buoyancy, the movable plate 407 can be moved, allowing it to slide along the outer wall of the slide rod 406 via the slide groove 408. This allows the movable plate 407 to move the support rod 410 upward, and the support rod 410 to push the movable seat 411 upward. This allows the movable seat 411 to make contact between the first contact piece 412 and the second contact piece 414 inside the housing 413, thus energizing the system. This also allows the water pump 403 inside the mounting box 402 to be started, and water to be drawn out via the water pipe 404. When the water level drops, the first contact piece 412 and the second contact piece 414 can disconnect, eliminating the need for frequent opening and closing by the operator.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A saline-alkali land desalination system, comprising saline-alkali land soil (1), characterized in that: The saline-alkali soil (1) is equipped with a hidden pipe assembly (2), and the hidden pipe assembly (2) is covered with planting soil (3). One end of the hidden pipe assembly (2) is connected to a drainage assembly (4). The hidden pipe assembly (2) includes a hidden pipe body (201), and the hidden pipe body (201) is buried inside the saline-alkali soil (1). The outer wall of the hidden pipe body (201) is provided with honeycomb holes (202). The outer wall of the hidden pipe body (201) is wrapped with a reverse osmosis membrane (203) and a permeable geotextile (204) in sequence.

2. The saline-alkali land desalination system according to claim 1, characterized in that: The concealed pipe body (201) has multiple honeycomb holes (202), and the multiple honeycomb holes (202) account for 15% to 20% of the concealed pipe body (201).

3. A saline-alkali land desalination system according to claim 1, characterized in that: The underground pipe body (201) is wrapped by a reverse osmosis membrane (203) and a permeable geotextile (204), with the reverse osmosis membrane (203) placed between the underground pipe body (201) and the permeable geotextile (204), and the permeable geotextile (204) being the outermost layer.

4. A saline-alkali land desalination system according to claim 1, characterized in that: The drainage assembly (4) includes a vertical diversion well (401), which is located inside the saline-alkali soil (1). A mounting box (402) is fixedly connected to the top of the vertical diversion well (401). A water pump (403) is installed inside the mounting box (402). A water pump (404) is connected to the input end of the water pump (403). The water pump (404) extends to the vertical diversion well (401). A side plate frame (405) is also provided inside the vertical diversion well (401). A sliding rod (406) is fixedly connected inside the side plate frame (405). The outer wall is slidably connected to a movable plate (407), and the inside of the side plate frame (405) is provided with a sliding groove (408). A float (409) is fixedly connected to one side of the movable plate (407), and a support rod (410) is fixedly connected to the top of the movable plate (407). A movable seat (411) is provided on the top of the support rod (410), and a first contact piece (412) is fixedly connected to the top of the movable seat (411). A box body (413) is fixedly connected to one side of the mounting box (402), and a second contact piece (414) is provided inside the box body (413) corresponding to the first contact piece (412).

5. A saline-alkali land desalination system according to claim 4, characterized in that: The water pump (403) is connected to the vertical diversion well (401) through the water pumping pipe (404), and one end of the water pumping pipe (404) is fixedly connected to the input end of the water pump (403), and the other end extends to the vertical diversion well (401) to draw water from the diversion well.

6. A saline-alkali land desalination system according to claim 4, characterized in that: The movable plate (407) forms a sliding structure with the slide rod (406) through the slide groove (408), and the outer diameter of the slide rod (406) matches the inner diameter of the slide groove (408), and the outer wall of the slide rod (406) is fitted with the inner wall of the slide groove (408). The movable plate (407) can slide up and down along the slide rod (406) by relying on the slide groove (408).

7. A saline-alkali land desalination system according to claim 4, characterized in that: The first contact piece (412) is disposed on the movable seat (411), and the second contact piece (414) is disposed on the housing (413). When the movable seat (411) rises with the water level, the movable seat (411) drives the first contact piece (412) to contact the second contact piece (414) to form an electrical connection structure.

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