A sand removal and filtering device for agricultural irrigation

Abstract

A sand removal and filtering device for agricultural irrigation comprises: an upper nozzle; a curved waterway is provided inside the upper nozzle; an upper cylinder; the upper cylinder is connected to the bottom of the upper nozzle, and the upper cylinder is horizontally connected to a water wheel mechanism for rotation inside, and the rotating waterway drives the water wheel mechanism to rotate circumferentially; a lower cylinder; a filter mechanism is horizontally laid on the upper part of the lower cylinder, and a scraper device rotates synchronously with the water wheel mechanism; the side wall of the lower cylinder is rotatably connected to a rotating sand discharge assembly, and after the scraper device rotates to a set position, the filtered sand on the filter mechanism is discharged along the rotating sand discharge assembly. It can be seen from the above description that after the irrigation water source passes through the curved waterway, the flow rate increases and a rotating waterway is formed; when the irrigation water source passes through the filter mechanism, solid sand is filtered out, and the filtered sand is discharged by the rotating sand discharge assembly under the action of the scraper device, ensuring that the filter mechanism is always in a high filtration state without clogging, and can be used for long-term irrigation sand removal operations.

Description

Technical field:

[0001] The present invention relates to the technical field of agricultural irrigation, in particular to a sand removal and discharge filtering device used for agricultural irrigation. Background technology:

[0002] The application of micro-irrigation systems in agriculture has not only improved agricultural production efficiency but also contributed to the modernization of the agricultural economy. Purification of irrigation water is an essential first step in micro-irrigation and a key measure to ensure the proper operation of micro-irrigation systems, extend the life of emitters, and guarantee irrigation quality.

[0003] Centrifugal filters are often used in existing agricultural irrigation, and their failure rate is frequent. The main problems are as follows: Since agricultural irrigation water is mostly well water, and the content of solid impurities in well water is high, it is easy to cause centrifugal filters to wear during use. When solid particles enter the drip irrigation system, they will clog the emitters and other emitters, thereby paralyzing the micro-irrigation system.

[0004] At the same time, during the sand removal and discharge process during irrigation, the centrifugal filter has a relatively simple structure and a high failure rate, and cannot be used continuously and uninterruptedly for a long time. Summary of the invention:

[0005] In view of this, it is necessary to design a sand removal and filtering device for agricultural irrigation that can overcome the above problems, separate and discharge solid impurities in the irrigation water source, and ensure long-term stable operation of irrigation.

[0006] A sand removal and filtering device for agricultural irrigation, comprising: an upper nozzle; a curved waterway provided inside the upper nozzle, the curved waterway being connected to an irrigation water source; the irrigation water source having a rapid flow rate after passing through the curved waterway and forming a rotating waterway with an olive-shaped cavity;

[0007] The upper cylinder is connected to the bottom of the upper nozzle, and the upper cylinder has a conical cavity that cooperates with the rotating waterway. The interior of the conical cavity is horizontally connected to a water wheel mechanism, and the rotating waterway drives the water wheel mechanism to rotate circumferentially;

[0008] The lower cylinder is connected to the bottom of the upper cylinder, and a filter mechanism is horizontally laid on the upper part of the lower cylinder. A scraper device is circumferentially rotated on the filter mechanism, and the scraper device rotates synchronously with the water wheel mechanism. The side wall of the lower cylinder is rotatably connected to a rotating sand discharge assembly. After the scraper device rotates to a set position, the filtered sand on the filter mechanism is discharged along the rotating sand discharge assembly.

[0009] The sedimentation cylinder is connected to the rotating sand discharge assembly and drains the filter sand, and the water medium separated by the filter sand sedimentation is pumped back to the bent waterway.

[0010] Preferably, the top of the upper nozzle is sealed with a cover, and the side wall of the upper nozzle is provided with a reducing interface, and the reducing interface is opposite to any one bending direction of the bending water channel.

[0011] Preferably, the upper cylinder is sealed and connected to the upper nozzle;

[0012] The rotating water channel rotates along the side wall of the conical cavity to impact the water wheel mechanism.

[0013] Preferably, the water wheel mechanism comprises: a rotating ring adapted to the conical cavity, and a plurality of baffles circumferentially arranged on the inner side of the rotating ring; wherein,

[0014] The rotating ring is rotatably connected to the interior of the conical cavity via a roller bearing.

[0015] Preferably, the water wheel mechanism is connected to the scraper device via a finger member and drives the scraper device to rotate synchronously.

[0016] Preferably, the filter mechanism comprises: an outer filter ring and an inner filter ring;

[0017] An assembly ring is provided between the outer filter ring and the inner filter ring. The scraper device rotates circumferentially along the outer side of the assembly ring and scrapes and drains the filtered sand on the outer filter ring to the rotating sand discharge assembly.

[0018] Preferably, a sand outlet is provided on the side wall of the lower cylinder, and the rotating sand outlet assembly is assembled at the sand outlet;

[0019] The rotating sand-extracting assembly comprises: circular plates arranged opposite to each other, and a paddle that divides the space between the two circular plates into multiple independent spaces; wherein,

[0020] The centers of the two circular plates are connected with an axial rod, a first side of each shift plate is fixedly connected to the axial rod, and a second side of each shift plate is convex and located outside the two circular plates.

[0021] Preferably, the lower cylinder has an inverted cone-shaped cavity, and the lower cylinder is connected to a support frame;

[0022] A lower nozzle with a variable diameter is provided at the bottom of the lower cylinder.

[0023] Preferably, an overflow partition is vertically provided inside the sedimentation cylinder, and the overflow partition separates the interior of the sedimentation cylinder into a filter sand collection bin and an overflow irrigation bin;

[0024] The filter collection bin is connected to the rotary sand removal assembly via an inclined pipeline;

[0025] A water pump is provided inside the overflow irrigation bin, and the water pump pumps the water medium inside the overflow irrigation bin back to the bent waterway through a return pipe.

[0026] Preferably, a sloped bottom plate is provided at the bottom of the filter sand collecting bin, and a sand cleaning door is hingedly connected to the side wall of the sedimentation cylinder at a position corresponding to the sloped bottom plate.

[0027] In the present invention, the irrigation water source increases its flow rate after passing through the curved waterway, forming a rotating waterway. The waterway's impact-driven rotation reduces the need for supporting facilities. As the irrigation water passes through the filter mechanism, solid sand is filtered out. The filtered sand is then discharged by the rotating sand discharge assembly under the action of a scraper device, ensuring that the filter mechanism is always in a high-filtration state and free of clogging, making it suitable for long-term irrigation sand removal operations. Description of the drawings:

[0028] Attachment Figure 1 This is a schematic structural diagram of a sand removal and filtering device for agricultural irrigation provided by the present invention;

[0029] Attachment Figure 2 It is a structural schematic diagram of the water wheel mechanism provided by the present invention;

[0030] Attachment Figure 3 It is a structural schematic diagram of the rotary sand production assembly provided by the present invention;

[0031] Attachment Figure 4 It is a structural schematic diagram of the sedimentation cylinder provided by the present invention.

[0032] In the picture:

[0033] Upper nozzle-10, reducer interface-11, bend water channel-12, return flow interface-13;

[0034] Blocked shots -20;

[0035] Upper cylinder 30, water wheel mechanism 31, finger 32, rotating ring 33, baffle 34, roller bearing 35; lower cylinder 40, support frame 41, outer filter 42, scraper 43, assembly ring 44, inner filter 45, circular plate 46, bearing 47, shaft rod 48, and shift plate 49;

[0036] Sedimentation cylinder 50, inclined pipeline 51, sand cleaning door 52, reflux outlet 53, overflow baffle 54, water pump 55, slope bottom plate 56;

[0037] Return pipe-60;

[0038] Lower nozzle - 70. Specific implementation method:

[0039] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0040] It should be noted that, unless otherwise defined, technical or scientific terms used in one or more embodiments of this specification should have the same ordinary meaning as understood by persons of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in one or more embodiments of this specification do not denote any order, quantity, or importance, but are merely used to distinguish different components.

[0041] Words such as “include” or “comprising” mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. Words such as “connected” or “connected” are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Up”, “down”, “left”, “right”, etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0042] In order to facilitate understanding of the sand removal and sand discharge filtering device for agricultural irrigation provided by the embodiment of the present application, its application scenario is first explained. In existing agricultural irrigation, centrifugal filters are mostly used, and their failure rate occurs frequently. The main problems are as follows: Since agricultural irrigation water is mostly well water, and the content of solid impurities in well water is relatively high, it is easy to cause the centrifugal filter to wear during use. When solid particles enter the drip irrigation system, they will block the emitters and other irrigation devices, thereby paralyzing the micro-irrigation system. At the same time, during the sand removal and sand discharge process during irrigation, the centrifugal filter structure is relatively simple, the failure rate is high, and it cannot be used continuously and uninterruptedly for a long time. In view of this, it is necessary to design a sand removal and sand discharge filtering device for agricultural irrigation that can overcome the above problems, separate and discharge the solid impurities in the irrigation water source, and ensure long-term stable operation of irrigation.

[0043] See attached Figure 1 , attached Figure 1 The structure of the sand removal and filtering device for agricultural irrigation provided by the present invention is schematically illustrated. The device comprises an upper nozzle 10; a curved waterway 12 is provided within the upper nozzle 10, and the curved waterway 12 is connected to an irrigation water source, such as well water, lake water, or canal water. The irrigation water source is pumped into the upper nozzle 10 by a lift suction pump.

[0044] After the irrigation water passes through the curved waterway 12, its flow rate increases dramatically, forming a rotating waterway with an olive-shaped cavity. The resulting rotating waterway rotates downward. Furthermore, the top of the upper nozzle 10 is sealed with a cap 20, which is bolted shut. The sidewall of the upper nozzle 10 is provided with a reducer 11. When the irrigation water is introduced through the reducer 11, the flow rate increases dramatically. The reducer 11 is positioned opposite one of the bends of the curved waterway 12. The curved waterway 12 is an L-shaped channel, and after the irrigation water passes through it, it rotates downward and flows out.

[0045] The device also includes a tank body, which is composed of an upper cylinder 30 and a lower cylinder 40 of a split structure. Specifically, this sand removal and filtering device for agricultural irrigation is primarily used in micro-irrigation systems, not pressure tanks used in agricultural irrigation. The upper cylinder 30 is rotatably connected to a waterwheel mechanism 31 within the upper cylinder 30. This waterwheel mechanism 31 is driven to rotate by a rotating waterway. When the tank body is used as a pressure tank, the installation position of the waterwheel mechanism 31 needs to be adjusted upwards so that the rotating waterway impacts the waterwheel mechanism 31, rather than allowing the irrigation water to overflow the waterwheel mechanism 31 and prevent it from impacting and rotating. In specific applications, the installation position of the waterwheel mechanism 31 is appropriately adjusted according to the irrigation pressure.

[0046] Specifically, the upper cylinder 30 is connected to the bottom of the upper nozzle 10 , and the connection between the upper cylinder 30 and the upper nozzle 10 is threaded or bolted to ensure the airtightness between the upper cylinder 30 and the upper nozzle 10 .

[0047] The upper cylinder 30 has a conical cavity that cooperates with the rotating waterway. The inside of the conical cavity is horizontally connected to a water wheel mechanism 31, and the rotating waterway drives the water wheel mechanism 31 to rotate circumferentially. In the embodiment of the present application, the rotating waterway impacts the water wheel mechanism 31 to cause it to rotate, and the scraper device 43 linked to the water wheel mechanism 31 performs sand removal operations, effectively reducing the assembly of the equipment.

[0048] Combine Figure 2 As shown in FIG, the upper cylinder 30 is sealedly connected to the upper nozzle 10; the rotating waterway rotates along the sidewall of the conical cavity to impact the water wheel mechanism 31. The water wheel mechanism 31 includes: a rotating ring 33 adapted to the conical cavity, and a plurality of baffles 34 circumferentially arranged inside the rotating ring 33; wherein, the rotating ring 33 is rotatably connected to the interior of the conical cavity via a roller bearing 35.

[0049] After the irrigation water source passes through the upper nozzle 10, a rotating water path is formed. When the rotating water path flows downward along the side wall of the conical cavity of the upper cylinder 30, it impacts multiple baffles 34, causing the rotating ring 33 to rotate, thereby achieving the purpose of using the irrigation water source to drive the water wheel mechanism 31 to rotate.

[0050] Continue reading Figure 1The lower cylinder 40 in this application is connected to the bottom of the upper cylinder 30. The connection between the lower cylinder 40 and the upper cylinder 30 is sealed by a flange. The lower cylinder 40 has an inverted conical cavity. The inverted conical cavity and the conical cavity form the cavity of the tank. The conical structure increases the water pressure inside the tank. In the micro-irrigation system, the maximum pressure of the irrigation water does not overflow the water wheel mechanism 31. In addition, a variable diameter lower nozzle 70 is provided at the bottom of the lower cylinder 40. After the diameter is reduced, the flow rate of the lower nozzle 70 increases, and it is connected to the irrigation pipeline connected to the farmland for irrigation.

[0051] At the same time, the lower cylinder 40 is connected to the support frame 41; the support frame 41 adopts triangular support to ensure convenient installation.

[0052] A filter mechanism is horizontally positioned above the lower cylinder 40. A scraper assembly 43 rotates circumferentially on the filter mechanism, rotating synchronously with the waterwheel mechanism 31. Specifically, the waterwheel mechanism 31 is connected to the scraper assembly 43 via a finger 32, driving the synchronous rotation of the scraper assembly 43. When the upper and lower cylinders 30 and 40 are connected, the finger 32 engages the scraper assembly 43, ensuring that the waterwheel mechanism 31 rotates synchronously with the scraper assembly 43.

[0053] The filter mechanism includes: an outer ring filter 42, and an inner ring filter 45; the outer ring filter 42 and the inner ring filter 45 are assembled separately, and are mainly used to deal with the rotating waterway that rotates downward near the side wall of the conical cavity. Most of the irrigation water passes through the outer ring filter 42 to filter and remove sand, and the inner ring filter 45 filters and removes sand for splashing or a small amount of water. The amount of filtered sand is small and does not need to be cleaned in real time. For this reason, the outer ring filter 42 is in a sand filtering and removing state during irrigation, and the inner ring filter 45 is cleaned after long-term use or does not need to be cleaned.

[0054] An assembly ring 44 is positioned between the outer filter 42 and the inner filter 45. A scraper assembly 43 rotates circumferentially along the outer periphery of the assembly ring 44, scraping and channeling the filtered sand from the outer filter 42 to the rotating sand removal assembly. A chute is provided in the outer annular shape of the assembly ring 44, into which the scraper assembly 43 slides. The scraper assembly 43 and the outer filter 42 are in close contact, and as the scraper assembly 43 rotates, it removes the filtered sand from the outer filter 42, maintaining the outer filter 42 in optimal filtration mode and preventing clogging.

[0055] Combine Figure 3 As shown in the figure, the side wall of the lower cylinder 40 is rotatably connected to the rotating sand discharge assembly. After the scraper device 43 rotates to the set position, the filtered sand on the filter mechanism is discharged along the rotating sand discharge assembly; the set position means that when the scraper device 43 drives the filtered sand to approach the rotating sand discharge assembly, it drives the rotating sand discharge assembly to rotate and discharge the filtered sand.

[0056] Specifically, a sand outlet is formed on the side wall of the lower cylinder 40, and a rotating sand outlet assembly is assembled at the sand outlet via a bearing 47. The rotating sand outlet assembly includes: circular plates 46 arranged opposite each other in an upper and lower direction, and a paddle 49 that divides the space between the two circular plates 46 into a plurality of independent spaces. The centers of the two circular plates 46 are connected to an axial rod 48, on which a bearing 47 is mounted. The first side of each paddle 49 is fixedly connected to the axial rod 48, and the second side of each paddle 49 protrudes outwardly and is located on the outside of the two circular plates 46. As can be seen from the above description, the paddle 49 can block the sand outlet, and a portion of the paddle 49 protrudes outwardly into the outer ring filter 42. When the scraper device 43 scrapes the filtered sand uniformly to the sand outlet position, the paddle 49 is driven to rotate by the impact of the filtered sand and part of the water, thereby discharging the filtered sand while the rotating sand outlet assembly is rotating.

[0057] In addition, reference Figure 4 , further comprising a settling drum 50; the settling drum 50 is connected to the rotary sand discharge assembly and drains the filtered sand. The aqueous medium separated by the filtered sand sedimentation is pumped back to the curved waterway 12. Specifically, an overflow baffle 54 is vertically provided inside the settling drum 50, which separates the interior of the settling drum 50 into a filtered sand collection chamber and an overflow irrigation chamber. The filter screen collection chamber is connected to the rotary sand discharge assembly via an inclined pipe 51.

[0058] A water pump 55 is installed inside the overflow irrigation bin. The water pump 55 pumps the aqueous medium inside the overflow irrigation bin back to the curved waterway 12 through a return pipe 60. The return pipe 60 includes a return outlet 53 provided at the top of the overflow irrigation bin and connected to the water pump 55, and a return interface 13 provided on the curved waterway 12. The return pipe 60 is connected between the return outlet 53 and the return interface 13. After the filtered sand and some water enter the filtered sand collection bin, the aqueous medium containing a small amount of sand is pumped back into the curved waterway 12 through sedimentation overflow for reuse in irrigation.

[0059] In addition, after a certain amount of solid sand is collected and settled, in order to facilitate cleaning, a sloped bottom plate 56 is provided at the bottom of the filter sand collection bin, and a sand cleaning door 52 is hingedly connected to the side wall of the sedimentation cylinder 50 at the position corresponding to the sloped bottom plate 56.

[0060] In the present invention, after the irrigation water source passes through the curved waterway 12, the flow rate increases and a rotating waterway is formed. The waterway impact-driven rotation method reduces the need for supporting facilities. When the irrigation water source passes through the filter mechanism, solid sand is filtered out. The filtered sand is discharged by the rotating sand discharge assembly under the action of the scraper device 43, ensuring that the filter mechanism is always in a high-filtration state and does not become clogged. It is suitable for long-term irrigation sand removal operations.

[0061] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Based on the concept of the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present specification as above, which are not provided in detail for the sake of simplicity.

[0062] In addition, to simplify the description and discussion, and so as not to obscure one or more embodiments of the present specification, well-known power / ground connections to integrated circuits and other components may or may not be shown in the provided figures. In addition, devices may be shown in block diagram form to avoid obscuring one or more embodiments of the present specification, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of the present specification will be implemented (i.e., these details should be fully within the purview of those skilled in the art). Where specific details (e.g., circuit layouts) are set forth to describe exemplary embodiments of the present disclosure, it will be apparent to those skilled in the art that one or more embodiments of the present specification may be implemented without these specific details or with variations in these specific details. Accordingly, these descriptions should be considered illustrative rather than restrictive.

[0063] The one or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification shall be included within the scope of protection of this disclosure.

[0064] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A sand removal and filtering device for agricultural irrigation, characterized in that: include: Upper nozzle; a curved water channel is provided inside the upper nozzle, and the curved water channel is connected to the irrigation water source, and the irrigation water source increases its flow rate after passing through the curved water channel and forms a rotating water channel with an olive-shaped cavity; The upper cylinder is connected to the bottom of the upper nozzle, and the upper cylinder has a conical cavity that cooperates with the rotating waterway. The interior of the conical cavity is horizontally connected to a water wheel mechanism, and the rotating waterway drives the water wheel mechanism to rotate circumferentially; The filter mechanism is connected with the filter housing, and the filter housing is connected with the filter housing, and the filter housing is connected with the filter housing. The centers of the two circular plates are connected with an axial rod, a first side of each shift plate is fixedly connected to the axial rod, and a second side of each shift plate is convex and located outside the two circular plates; The sedimentation cylinder is connected to the rotating sand discharge assembly and drains the filter sand, and the water medium separated by the filter sand sedimentation is pumped back to the bent waterway.

2. The sand removal and filtering device for agricultural irrigation according to claim 1, characterized in that: The top of the upper nozzle is sealed with a cover, and the side wall of the upper nozzle is provided with a diameter-changing interface, and the diameter-changing interface is opposite to any one bending direction of the bending water channel.

3. The sand removal and filtering device for agricultural irrigation according to claim 2, characterized in that: The upper cylinder is sealed and connected to the upper nozzle; The rotating water channel rotates along the side wall of the conical cavity to impact the water wheel mechanism.

4. The sand removal and filtering device for agricultural irrigation according to claim 3, characterized in that: The water wheel mechanism includes: a rotating ring adapted to the conical cavity, and a plurality of baffles circumferentially arranged on the inner side of the rotating ring; wherein, The rotating ring is rotatably connected to the interior of the conical cavity via a roller bearing.

5. The sand removal and filtering device for agricultural irrigation according to claim 1, characterized in that: The water wheel mechanism is connected to the scraper device through a finger member and drives the scraper device to rotate synchronously.

6. The sand removal and filtering device for agricultural irrigation according to claim 1, characterized in that: The lower cylinder has an inverted cone-shaped cavity, and the lower cylinder is connected to a supporting frame; A lower nozzle with a variable diameter is provided at the bottom of the lower cylinder.

7. The sand removal and filtering device for agricultural irrigation according to claim 1, characterized in that: An overflow partition is vertically provided inside the sedimentation cylinder, and the overflow partition separates the interior of the sedimentation cylinder into a filter sand collection bin and an overflow irrigation bin; The filter collection bin is connected to the rotary sand removal assembly via an inclined pipeline; A water pump is provided inside the overflow irrigation bin, and the water pump pumps the water medium inside the overflow irrigation bin back to the bent waterway through a return pipe.

8. The sand removal and filtering device for agricultural irrigation according to claim 7, characterized in that: The bottom of the filter sand collecting bin is provided with a sloped bottom plate, and a sand cleaning door is hingedly connected to the side wall of the sedimentation cylinder at a position corresponding to the sloped bottom plate.

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