System for irrigating soil by using frozen salt water

Abstract

The invention discloses a system for irrigating soil by adopting frozen salt water. The system comprises a frame body with a frame mechanism, a submersible pump for pumping out underground brackish water, and a water purification mechanism for primarily purifying the underground brackish water input into the submersible pump, the underground brackish water temporary storage mechanism is used for storing and re-filtering the underground brackish water output by the water purification mechanism; and the sprinkling irrigation mechanism is used for spraying the brackish water stored by the underground brackish water temporary storage mechanism and irrigating target soil. By means of the system, the efficiency of irrigating the soil through the frozen salt water can be guaranteed and improved, and the salt and alkali content in the soil can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural irrigation, and in particular to a system for irrigating soil by using frozen salt water. Background Art

[0002] At present, in order to restore the ecology and realize the full utilization of saline-alkali land, it is necessary to wash the salt from the saline-alkali land and reduce the salt content in the soil. The conventional method is to use fresh water irrigation to wash the salt, but the fresh water resources in the saline-alkali area are scarce, while the salt water resources are abundant. The saline-alkali land is irrigated by extracting underground brackish water from the saline-alkali land in winter. The low temperature in winter is used to freeze the brackish water irrigated on the surface of the target soil to form an ice layer. When spring comes, the ice layer with a higher salt content in the ice layer will melt first and infiltrate, bringing the surface salt into the underground. In the process of gradually rising temperature, the freshwater ice layer will melt last. Through the infiltration of the melted freshwater ice layer, the salt on the soil surface will be driven again to reduce the salt content on the soil surface.

[0003] In the process of irrigation with underground brackish water, floating debris such as mud, salt particles and crushed ice in the water can easily enter the sprinkler nozzles, causing nozzle blockage and affecting the smooth progress of irrigation. Although this problem can be overcome to a certain extent by adding filters to the pipeline before the sprinkler mechanism, if there are too many impurities in the water, it is necessary to frequently stop the machine to clean the filter, which will also seriously reduce the efficiency of irrigation. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: Some embodiments of the present invention provide a system for irrigating soil using frozen salt water, comprising: a frame having a framework supporting the structural components; A submersible pump, the submersible pump is used at least to pump out underground brackish water, and a connecting pipe is installed at the water outlet of the submersible pump; A water purification mechanism, which is installed at the water inlet of the submersible pump and is used at least to preliminarily purify the underground brackish water input into the submersible pump; A salt water buffer mechanism, which is installed inside the frame and connected to the submersible pump through a connecting pipe and is used at least to store and re-filter the underground brackish water output by the water purification mechanism; A sprinkler mechanism, the sprinkler mechanism being in communication with the salt water buffer mechanism and being used at least to spray out the underground brackish water stored in the salt water buffer mechanism to irrigate the target soil; Among them, the sprinkler mechanism includes a connecting pipe, which is fixedly installed on the top of the salt water cache mechanism, and the bottom end of the connecting pipe passes through the salt water cache mechanism and extends to the inside thereof, the bottom end of the connecting pipe is fixedly installed with an outer sleeve, and a through-groove pipe is slidably installed at the bottom of the outer side of the outer sleeve, and the bottom of the outer side of the through-groove pipe is evenly provided with through grooves, and an outer oblique cover is fixedly installed at the bottom of the outer side of the through-groove pipe, and the distance between the outer oblique cover and the through-groove pipe gradually decreases from top to bottom, and a hollow floating block is fixedly installed at the bottom of the through-groove pipe, and a sealing ring is slidably installed between the through-groove pipe and the outer oblique cover, a buoyancy ring is fixedly installed on the top of the sealing ring, and the sealing ring is located above the through groove.

[0005] In one embodiment, a hollow slot cover is fixedly installed on the top of the outer side of the outer inclined cover, the inner wall of the hollow slot cover is fixedly connected to the outer side of the through slot pipe, hollow slots are evenly opened on the outer side of the hollow slot cover, and a nozzle is fixedly installed on the top of the connecting pipe.

[0006] In one embodiment, the salt water cache mechanism includes a water storage tank, the bottom of which is fixedly connected to the inner wall of the frame, the top of which is fixedly connected to the outside of the connecting pipe, and the bottom of the outside of the water storage tank is connected to the water outlet of the submersible pump through a connecting pipe.

[0007] In one embodiment, a top plate is fixedly installed at the bottom of the inner wall of the water storage tank, and the top plate is inclined downward at one end close to the sprinkler mechanism. A bottom plate is fixedly installed at the bottom of the inner wall of the water storage tank, and the bottom plate is inclined upward at one end away from the sprinkler mechanism.

[0008] In one embodiment, a sand storage box is detachably mounted on the bottom of the outer side of the water storage tank, the outer side of the sand storage box is in contact with the inclined surface of the bottom plate, and an empty groove is provided on a side of the sand storage box away from the bottom plate.

[0009] In one embodiment, a grating is fixedly installed between the bottom plate and the top plate, grating grooves are evenly opened on the outer side of the grating, and connecting blocks are fixedly installed at both ends of the grating close to the sprinkler mechanism, and an inclined panel is fixedly installed between the connecting blocks, and the side of the inclined panel close to the grating is an inclined surface protruding toward the grating at the center position, and a water-permeable groove is opened at the center position of the inclined panel.

[0010] In one embodiment, the water purification mechanism includes a top plate, the top of the top plate is fixedly connected to the water inlet of the submersible pump, the bottom of the top plate is fixedly installed with a groove frame, the bottom of the groove frame is fixedly installed with a bottom plate, and the center position of the top of the bottom plate is fixedly installed with a sliding column.

[0011] In one embodiment, a connection plate is slidably mounted on the outer side of the sliding column, and an outer arc cover is fixedly mounted on the outer side of the connection plate. The outer arc cover is an arc surface that is inclined outward from bottom to top.

[0012] In one embodiment, the inner wall of the outer arc cover is slidably matched with the outer side of the groove frame, the top of the connecting plate is evenly equipped with sliding rods, the top of the sliding column is fixedly equipped with a hole plate, and the outer side of the sliding rod is slidably matched with the inner wall of the hole plate.

[0013] In one embodiment, a filter cover is fixedly installed on the top of the perforated plate, a bevel ring is fixedly connected to the top of the filter cover, the outer side of the bevel ring is fixedly connected to the inner wall of the top plate, the inner wall of the bevel ring is a conical surface inclined inward from top to bottom, a bevel block is fixedly installed on the top of the slide rod, the outer side of the bevel block is a bevel inclined inward from top to bottom, and there is a gap between the bevel block and the bevel ring.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: (1) Through the cooperation between the sealing ring and the buoyancy ring, only when the salt water level is higher than the slot position of the slot pipe and enters the gap between the outer inclined cover and the slot pipe, the buoyancy between the underground brackish water and the buoyancy ring drives the sealing ring to move up to open the gap, thereby preventing surface salt water from passing through the slot of the slot pipe and preventing small floating debris such as ice chips in the underground brackish water from entering the sprinkler head during the process of extracting underground brackish water to irrigate the target soil in winter, causing the sprinkler head to be blocked, affecting the smooth progress of sprinkler irrigation, thereby ensuring and improving irrigation efficiency.

[0015] (2) The inclined surface of the bottom plate cooperates with the sand storage box. When the extracted underground brackish water rushes into the water storage tank, it directly impacts the inclined surface of the bottom plate. The inclined surface of the bottom plate cooperates with the sedimentation of the silt in the salt water to make the silt be stored obliquely downward and enter the sand storage box. The silt can be collected in a centralized manner during the flow, preventing silt blockage and facilitating cleaning.

[0016] (3) Through the cooperation between the grating and the inclined plate, the brackish water filtered by the grating will enter the gap between the inclined plate and the grating, then flow along both sides to the center, and then pass through the permeable groove. In the process of the brackish water flowing to the center, the inclined surface of the inclined plate is used to reduce the flow gap, impact the grating, and collide with the water flow on the other side of the grating, preventing the impact force of the grating from being too large, causing impurities to block the grating.

[0017] (4) The arc surface of the outer arc cover cooperates with the fluid power generated by the submersible pump. During the pumping process, the arc surface blocks the underground brackish water diagonally below, so that the bottom salt water is less driven, preventing the sediment settled at the bottom in winter from being driven, resulting in a higher sediment content in the pumped underground brackish water.

[0018] (5) Through the cooperation between the inclined surface block and the inclined surface ring, when the pumping speed increases, the water flow moves upward by impacting the inclined surface block, increasing the gap between the inclined surface ring and the inclined surface block. At the same time, during the upward movement of the inclined surface block, the outer arc cover is driven upward by the sliding rod and the connecting plate, cooperating with the trough frame to increase the height of the silt blocking and improve the blocking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a system for irrigating soil using frozen salt water in Example 1 of the present invention; Figure 2 It is a side view of a system for irrigating soil using frozen salt water in Example 1 of the present invention; Figure 3 This is a schematic structural diagram of a salt water buffer mechanism in Example 2 of the present invention; Figure 4 It is a cross-sectional view of a salt water cache mechanism in Example 2 of the present invention; Figure 5 It is a partial cross-sectional view of a salt water cache mechanism in Example 2 of the present invention; Figure 6 This is a structural schematic diagram of a sprinkler irrigation mechanism in Example 1 of the present invention; Figure 7 It is a partial structural cross-sectional view of a sprinkler irrigation mechanism in Example 1 of the present invention; Figure 8 This is a schematic structural diagram of a water purification mechanism in Example 3 of the present invention; Fig. 9 This is a cross-sectional view of a water purification mechanism structure in Example 3 of the present invention.

[0020] Explanation of the reference numerals: 1. frame; 2. sprinkler mechanism; 3. salt water buffer mechanism; 4. water purification mechanism; 5. submersible pump; 6. connecting pipe; 21. sprinkler head; 22. connecting pipe; 23. outer sleeve; 24. hollow floating block; 25. through-groove pipe; 26. outer inclined cover; 27. hollow groove cover; 28. sealing ring; 29. ​​buoyancy ring; 31. water storage tank; 32. sand storage box; 33. grating; 34. bottom plate; 35. top plate; 36. connecting block; 37. inclined plate; 401. top plate; 402. outer arc cover; 403. bottom plate; 404. connecting plate; 405. sliding column; 406. hole plate; 407. inclined ring; 408. inclined block; 409. sliding rod; 410. groove frame; 411. filter cover. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0022] Example 1 Figure 1 to Figure 2 and Figure 6 to Figure 7 As shown, the present embodiment provides a system for irrigating soil using frozen salt water, comprising: A frame 1 having a framework for supporting structural components; A submersible pump 5, which is used to pump out underground brackish water, and a connecting pipe 6 is installed at the water outlet of the submersible pump 5; A water purification mechanism 4, which is used to preliminarily purify the underground brackish water output by the submersible pump 5, and the water purification mechanism 4 is installed at the water inlet of the submersible pump 5; A salt water buffer mechanism 3, which is used to store and filter the extracted underground brackish water, and the salt water buffer mechanism 3 is installed inside the frame 1, and the salt water buffer mechanism 3 is connected to the submersible pump 5 through a connecting pipe 6; A sprinkler mechanism 2, which is used to spray the brackish water stored in the salt water buffer mechanism 3 to irrigate the target soil, and the sprinkler mechanism 2 is installed on the top of the salt water buffer mechanism 3; The sprinkler mechanism 2 includes a connecting pipe 22, which is fixedly mounted on the top of the salt water buffer mechanism 3, and the bottom end of the connecting pipe 22 passes through the salt water buffer mechanism 3 and extends to the inside thereof. An outer sleeve 23 is fixedly mounted on the bottom end of the connecting pipe 22, and a through slot pipe 25 is slidably mounted on the bottom of the outer side of the outer sleeve 23. Through slots are evenly arranged on the bottom of the outer side of the through slot pipe 25, and an outer oblique cover 26 is fixedly mounted on the bottom of the outer side of the through slot pipe 25. The distance between the outer oblique cover 26 and the through slot pipe 25 gradually decreases from top to bottom, and a hollow floating block 24 is fixedly mounted on the bottom of the through slot pipe 25. The underground brackish water after being filtered by sediment contacts the bottom of the hollow floating block 24. The buoyancy of the hollow floating block 24 after contacting the salt water drives the through slot pipe 25 to move up along the outer side of the outer sleeve 23. When the salt water passes over the top of the outer oblique cover 26, the salt water enters the gap between the outer oblique cover 26 and the through slot pipe 25 through the empty slot on the surface of the empty slot cover 27. When the liquid level is higher than the sealing The buoyancy ring 29 on the top of the sealing ring 28 is used to drive the sealing ring 28 upward by the buoyancy of the buoyancy ring 29 in contact with the salt water, and the gap between the buoyancy ring 29 and the outer oblique cover 26 is opened, so that the salt water flows downward through the gap and enters the through-groove pipe 25 through the through-groove on the outside of the through-groove pipe 25. The sealing ring 28 is slidably installed between the through-groove pipe 25 and the outer oblique cover 26. The buoyancy ring 29 is fixedly installed on the top of the sealing ring 28, and the sealing ring 28 is located above the through-groove. The outer oblique cover 26 An empty slot cover 27 is fixedly installed on the top of the outer side, and the inner wall of the empty slot cover 27 is fixedly connected to the outer side of the through slot pipe 25. In the process of increasing the volume of underground bitter and salty water stored in the salt water buffer mechanism 3, the salt water flows up from the through slot pipe 25, along the outer sleeve 23 and the connecting pipe 22, and enters the nozzle 21, so that the salt water is sprayed out from the nozzle 21 to irrigate the target soil in winter. Empty slots are evenly opened on the outer side of the empty slot cover 27, and the nozzle 21 is fixedly installed on the top of the connecting pipe 22.

[0023] In this embodiment, through the cooperation between the sealing ring and the buoyancy ring, only when the salt water level is higher than the slot position of the slot pipe and enters the gap between the outer oblique cover and the slot pipe, the buoyancy between the underground brackish water and the buoyancy ring drives the sealing ring to move up to open the gap, thereby preventing the surface salt water from passing through the slot of the slot pipe, and preventing the ice debris and other small floating debris in the underground brackish water from entering the nozzle during the process of extracting underground brackish water to irrigate the target soil in winter, causing the nozzle to be blocked, thereby affecting the spraying of the target soil. Compared with the method of using a filter screen to filter, the frequent cleaning of the filter screen can be avoided, and a larger salt water flux can be obtained.

[0024] Example 2 Based on Example 1, please refer to Figures 3 to 5As shown, in a system for irrigating soil with frozen salt water provided in this embodiment, the salt water buffer mechanism 3 further includes a water storage tank 31, the bottom of the water storage tank 31 is fixedly connected to the inner wall of the frame 1, the top of the water storage tank 31 is fixedly connected to the outer side of the connecting pipe 22, the bottom of the outer side of the water storage tank 31 is connected to the water outlet of the submersible pump 5 through the connecting pipe 6, and a top plate 35 is fixedly installed at the bottom of the inner wall of the water storage tank 31, and the top plate 35 is inclined downward at one end close to the sprinkler irrigation mechanism 2, and the extracted underground bitter and salty water is connected to the connecting pipe 22. The through pipe 6 enters the water storage tank 31 and impacts the inside of the water storage tank 31 from the bottom. When the underground brackish water rushes into the water storage tank 31, the underground brackish water is blocked by the inclined surface of the bottom plate 34, so that the silt in the extracted salt water is precipitated downward during the storage in the water storage tank 31. Driven by the sedimentation and impact of the flowing underground brackish water, the silt enters the sand storage box 32 and is stored in the sand storage box 32. The bottom of the inner wall of the water storage tank 31 is fixedly installed with a bottom plate 34, and the end of the bottom plate 34 away from the sprinkler mechanism 2 is inclined upward. With such a design, the silt can be collected in the sand storage box when the underground brackish water flows in the system of this embodiment, which prevents silt blockage and facilitates cleaning. Compared with the method of filtering with a filter screen, it is more efficient, simpler to operate, and can ensure long-term stable irrigation.

[0025] The outer side of the sand storage box 32 is fitted with the inclined surface of the bottom plate 34, and an empty groove is provided on the side of the sand storage box 32 away from the bottom plate 34. A grating plate 33 is fixedly installed between the bottom plate 34 and the top plate 35. The outer side of the grating plate 33 is evenly provided with grating grooves, and connecting blocks 36 are fixedly installed at both ends of the grating plate 33 close to the sprinkler mechanism 2, and inclined panels 37 are fixedly installed between the connecting blocks 36. During the continuous storage process of the stored underground brackish water, the liquid level rises and reaches the position of the grating plate 33, so that the grating plate 33 blocks the silt again, so that the salt water passes through the grating plate 33 and enters the gap between the inclined panels 37 and the grating plate 33, and enters the other side of the top plate 35 and the bottom plate 34 through the water-permeable groove at the center of the inclined panel 37. The side of the inclined panel 37 close to the grating plate 33 is an inclined surface protruding toward the grating plate 33 at the center, and a water-permeable groove is provided at the center of the inclined panel 37. Based on this design, after being filtered by the grating, the underground brackish water can flow toward the center along both sides and pass through the permeable groove after entering the gap between the inclined plate and the grating. In the process of flowing toward the center, the inclined surface of the inclined plate is used to reduce the flow gap, impact the grating, and collide with the water flow on the other side of the grating, preventing the impact force of the grating from being too large and causing impurities to clog the grating.

[0026] In addition, in this embodiment, a salinity meter or the like may be installed at the water inlet of the submersible pump 5 to monitor the salinity of the underground brackish water to prevent the underground brackish water with too high salinity from being irrigated into the target soil.

[0027] Example 3 Based on Examples 1 and 2, please refer to Figures 8 to 9 As shown, in a system for irrigating soil with frozen salt water provided in this embodiment, the water purification mechanism 4 further includes a top plate 401, the top of the top plate 401 is fixedly connected to the water inlet of the submersible pump 5, a groove frame 410 is fixedly installed at the bottom of the top plate 401, a bottom plate 403 is fixedly installed at the bottom of the groove frame 410, and a sliding column 405 is fixedly installed at the center position of the top of the bottom plate 403. Underground brackish water enters through the water purification mechanism 4. In the process of extracting underground brackish water, the underground brackish water is, under the action of the submersible pump 5, The underground brackish water enters the interior of the trough frame 410 from the oblique upper part of the outer arc cover 402, and is initially purified by the filter cover 411 to block large debris, so that the underground brackish water enters the interior of the filter cover 411, and is driven by the submersible pump 5 to surge upward, and enter the submersible pump 5 through the gap between the inclined surface block 408 and the inclined surface ring 407. The outer side of the sliding column 405 is slidably mounted with a connecting plate 404, and the outer side of the connecting plate 404 is fixedly mounted with an outer arc cover 402, which is an arc surface inclined outward from bottom to top. Among them, the arc surface of the outer arc cover cooperates with the fluid power generated by the submersible pump, and in the process of pumping water, the arc surface blocks the underground brackish water obliquely below, so that the bottom salt water is less driven, and the sediment deposited at the bottom is prevented from being driven, resulting in a higher sand content of the pumped underground brackish water, thereby allowing as little sediment as possible to enter the system.

[0028] The inner wall of the outer arc cover 402 is slidably matched with the outer side of the groove frame 410, the top of the connecting plate 404 is evenly installed with a slide bar 409, the top of the slide column 405 is fixedly installed with a hole plate 406, the outer side of the slide bar 409 is slidably matched with the inner wall of the hole plate 406, the top of the hole plate 406 is fixedly installed with a filter cover 411, the top of the filter cover 411 is fixedly connected with a bevel ring 407, the outer side of the bevel ring 407 is fixedly connected with the inner wall of the top plate 401, the inner wall of the bevel ring 407 is a conical surface inclined inward from top to bottom, when the submersible pump 5 increases the impulse efficiency, upward The surging underground brackish water speeds up, causing the water flow to impact the inclined plane block 408, driving it upward, increasing the gap between the inclined plane block 408 and the inclined plane ring 407. At the same time, in the process of the inclined plane block 408 moving upward, the connecting plate 404 is driven to slide along the outer side of the sliding column 405 through the sliding rod 409. At the same time, in the process of the connecting plate 404 moving upward, the outer arc cover 402 is driven to move upward. The top of the sliding rod 409 is fixedly installed with the inclined plane block 408. The outer side of the inclined plane block 408 is an inclined plane that tilts inward from top to bottom, and there is a gap between the inclined plane block 408 and the inclined plane ring 407. Among them, through the cooperation of the inclined plane block and the inclined plane ring, when the pumping speed is accelerated, the water flow moves upward by impacting the inclined plane block, increasing the gap between the inclined plane ring and the inclined plane block. At the same time, in the process of the inclined plane block moving upward, the outer arc cover is driven to move upward through the sliding rod and the connecting plate, and cooperates with the slot frame to increase the height of blocking sediment, further optimizing the blocking effect.

[0029] When in use, the system for irrigating soil with frozen salt water provided by the above-mentioned embodiment of the present invention extracts underground brackish water from the saline-alkali land in winter to irrigate the saline-alkali land. In winter, the low temperature is used to freeze the brackish water irrigated on the surface of the target soil to form an ice layer. When spring comes, the ice layer with a higher salt content in the ice layer melts first and seeps down, bringing the surface salt into the underground. As the temperature gradually rises, the freshwater ice layer melts last. The melted freshwater ice layer seeps down, driving the salt on the soil surface again, thereby reducing the salt content on the soil surface.

[0030] In the above embodiment, during irrigation, the submersible pump 5 is placed in underground brackish water, and the submersible pump 5 is started to drive the underground brackish water into the submersible pump 5 through the water purification mechanism 4 in winter. The salt water cache mechanism 3 and the submersible pump 5 are connected through the connecting pipe 6, so that the submersible pump 5 guides the underground brackish water into the salt water cache mechanism 3 through the connecting pipe 6, and the underground brackish water enters the salt water cache mechanism 3 for sand removal. The underground brackish water continuously stored in the salt water cache mechanism 3 is finally sprayed out in conjunction with the sprinkler irrigation mechanism 2 to irrigate the land in winter, so that the underground brackish water is stored on the target soil surface, and in conjunction with the low temperature in winter, an ice layer is formed on the target soil surface.

[0031] In the process of extracting underground brackish water by the submersible pump 5, the underground brackish water enters through the water purification mechanism 4. In the process of extracting underground brackish water, under the action of the submersible pump 5, the underground brackish water enters the interior of the slot frame 410 from the oblique upper part of the outer arc cover 402, and is initially purified by the filter cover 411 to block large pieces of debris, so that the underground brackish water enters the interior of the filter cover 411, and the underground brackish water surges upward under the drive of the submersible pump 5, and enters the submersible pump 5 through the gap between the inclined surface block 408 and the inclined surface ring 407. At the same time, when the submersible pump 5 increases the impulse efficiency, the flow rate of the underground brackish water surging upward is accelerated, so that the water flow impacts the inclined surface block 408, drives it upward, and increases the gap between the inclined surface block 408 and the inclined surface ring 407. At the same time, in the process of the inclined surface block 408 moving upward, the connecting plate 404 is driven to slide along the outer side of the sliding column 405 through the sliding rod 409, and at the same time, in the process of the connecting plate 404 moving upward, the outer arc cover 402 is driven to move upward.

[0032] The extracted underground brackish water enters the water storage tank 31 through the connecting pipe 6, and impacts the inside of the water storage tank 31 from the bottom. In the process of the underground brackish water rushing into the water storage tank 31, the underground brackish water is blocked by the inclined surface of the bottom plate 34, so that the silt in the extracted salt water settles downward during the storage in the water storage tank 31, and the silt is driven by the sedimentation and impact of the flowing underground brackish water to enter the sand storage box 32 and be stored in the sand storage box 32. At the same time, the stored underground brackish water is continuously stored, and the liquid level rises to the position of the grid plate 33, so that the grid plate 33 blocks the silt again, so that the salt water passes through the grid plate 33 and enters the gap between the inclined panels 37 and the grid plates 33, and enters the other side of the top plate 35 and the bottom plate 34 through the water-permeable groove at the center of the inclined panel 37.

[0033] In the sprinkler mechanism 2, the underground brackish water after being filtered by sediment contacts the bottom of the hollow floating block 24. The buoyancy of the hollow floating block 24 in contact with the salt water drives the through-slot pipe 25 to move upward along the outer side of the outer sleeve 23. When the salt water passes over the top of the outer oblique cover 26, the salt water enters the gap between the outer oblique cover 26 and the through-slot pipe 25 through the empty grooves on the surface of the empty groove cover 27. When the liquid level is higher than the sealing ring 28, it contacts the buoyancy ring 29 on the top of the sealing ring 28, and the buoyancy ring 29 contacts the salt water. The buoyancy at the rear drives the sealing ring 28 to move upward, opening the gap between the sealing ring 28 and the outer oblique cover 26, so that the salt water flows downward through the gap and enters the through-groove pipe 25 through the through-groove on the outer side of the through-groove pipe 25. As the volume of underground brackish water continuously input into the salt water buffer mechanism 3 increases, the salt water flows upward from the through-groove pipe 25, along the outer sleeve 23 and the connecting pipe 22, and automatically enters the sprinkler 21, so that the salt water is sprayed out from the sprinkler 21 to irrigate the target soil in winter without the need for other power, thereby saving costs.

[0034] In addition, the design of the above embodiments of the present invention also makes the irrigation system of the present invention easy to maintain. For example, when flushing the internal pipes of the system with fresh water, there are fewer dead corners to clean and the sediment retention rate is low. Therefore, it is possible to reduce or prevent problems such as pipeline corrosion caused by salt water and salt-containing sediment mixed with it remaining in the pipeline, thereby ensuring the service life of the equipment.

[0035] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A system for irrigating soil using frozen salt water, characterized in that: include: A frame (1), the frame (1) having a framework supporting structural components; A submersible pump (5), the submersible pump (5) being used at least to pump out underground brackish water, and a connecting pipe (6) being installed at the water outlet of the submersible pump (5); A water purification mechanism (4), the water purification mechanism (4) being installed at the water inlet of the submersible pump (5) and being used at least to preliminarily purify the underground brackish water input into the submersible pump (5); A salt water buffer mechanism (3), the salt water buffer mechanism (3) being installed inside the frame (1) and connected to the submersible pump (5) via a connecting pipe (6), and being used at least to store and re-filter underground brackish water output by the water purification mechanism (4); A sprinkler irrigation mechanism (2), the sprinkler irrigation mechanism (2) being connected to the salt water buffer mechanism (3) and being used at least to spray out underground brackish water stored in the salt water buffer mechanism (3) to irrigate target soil; The sprinkler mechanism (2) comprises a connecting pipe (22), the connecting pipe (22) being fixedly mounted on the top of the salt water buffer mechanism (3), and the bottom end of the connecting pipe (22) passing through the salt water buffer mechanism (3) and extending into the inside thereof, the bottom end of the connecting pipe (22) being fixedly mounted with an outer sleeve (23), the bottom of the outer side of the outer sleeve (23) being slidably mounted with a through-groove pipe (25), the bottom of the outer side of the through-groove pipe (25) being evenly provided with through grooves, and the bottom of the outer side of the through-groove pipe (25) being fixedly mounted with an outer oblique cover (26), the distance between the outer oblique cover (26) and the through-groove pipe (25) gradually decreasing from top to bottom, and the bottom of the through-groove pipe (25) being fixedly mounted with a hollow floating block (24), a sealing ring (28) being slidably mounted between the through-groove pipe (25) and the outer oblique cover (26), a buoyancy ring (29) being fixedly mounted on the top of the sealing ring (28), and the sealing ring (28) being located above the through groove.

2. A system for irrigating soil using frozen salt water according to claim 1, characterized in that: A hollow slot cover (27) is fixedly mounted on the top of the outer side of the outer oblique cover (26); the inner wall of the hollow slot cover (27) is fixedly connected to the outer side of the through slot pipe (25); hollow slots are evenly formed on the outer side of the hollow slot cover (27); and a nozzle (21) is fixedly mounted on the top of the connecting pipe (22).

3. The system for irrigating soil using frozen salt water according to claim 1, characterized in that: The salt water buffer mechanism (3) comprises a water storage tank (31), the bottom of the water storage tank (31) is fixedly connected to the inner wall of the frame (1), the top of the water storage tank (31) is fixedly connected to the outside of the connecting pipe (22), and the bottom of the outside of the water storage tank (31) is connected to the water outlet of the submersible pump (5) via a connecting pipe (6).

4. A system for irrigating soil using frozen salt water according to claim 3, characterized in that: A top plate (35) is fixedly mounted on the bottom of the inner wall of the water storage tank (31), and one end of the top plate (35) close to the sprinkler mechanism (2) is inclined downwardly. A bottom plate (34) is fixedly mounted on the bottom of the inner wall of the water storage tank (31), and one end of the bottom plate (34) away from the sprinkler mechanism (2) is inclined upwardly.

5. A system for irrigating soil using frozen salt water according to claim 4, characterized in that: A sand storage box (32) is detachably mounted on the bottom of the outer side of the water storage tank (31); the outer side of the sand storage box (32) is in contact with the inclined surface of the bottom plate (34); and a hollow groove is provided on a side of the sand storage box (32) away from the bottom plate (34).

6. A system for irrigating soil using frozen salt water according to claim 5, characterized in that: A grid plate (33) is fixedly installed between the bottom plate (34) and the top plate (35), grid grooves are evenly provided on the outer side of the grid plate (33), and connecting blocks (36) are fixedly installed at both ends of the grid plate (33) on the side close to the sprinkler mechanism (2), and an inclined panel (37) is fixedly installed between the connecting blocks (36), and the side of the inclined panel (37) close to the grid plate (33) is an inclined surface protruding toward the grid plate (33) at the center position, and a water-permeable groove is provided at the center position of the inclined panel (37).

7. The system for irrigating soil using frozen salt water according to claim 1, characterized in that: The water purification mechanism (4) comprises a top plate (401), the top of the top plate (401) being fixedly connected to the water inlet of the submersible pump (5), a groove frame (410) being fixedly mounted on the bottom of the top plate (401), a bottom plate (403) being fixedly mounted on the bottom of the groove frame (410), and a sliding column (405) being fixedly mounted at the center position of the top of the bottom plate (403).

8. A system for irrigating soil using frozen salt water according to claim 7, characterized in that: A connecting plate (404) is slidably mounted on the outer side of the sliding column (405), and an outer arc cover (402) is fixedly mounted on the outer side of the connecting plate (404). The outer arc cover (402) is an arc surface that is inclined outward from bottom to top.

9. A system for irrigating soil using frozen salt water according to claim 8, characterized in that: The inner wall of the outer arc cover (402) is slidably matched with the outer side of the groove frame (410), the top of the connecting plate (404) is evenly installed with sliding rods (409), the top of the sliding column (405) is fixedly installed with a hole plate (406), and the outer side of the sliding rod (409) is slidably matched with the inner wall of the hole plate (406).

10. A system for irrigating soil using frozen salt water according to claim 9, characterized in that: A filter cover (411) is fixedly mounted on the top of the orifice plate (406), a bevel ring (407) is fixedly connected to the top of the filter cover (411), the outer side of the bevel ring (407) is fixedly connected to the inner wall of the top plate (401), the inner wall of the bevel ring (407) is a conical surface that is inclined inward from top to bottom, and a bevel block (408) is fixedly mounted on the top of the slide rod (409), the outer side of the bevel block (408) is a bevel that is inclined inward from top to bottom, and there is a gap between the bevel block (408) and the bevel ring (407).

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