Pumping and filtering all-in-one machine for irrigation

Abstract

The utility model relates to the technical field of agricultural irrigation filtration, in particular to an irrigation pump and filter all-in-one machine which structurally and mainly comprises a support and a filter screen cylinder, a water outlet is formed in the lower end of the filter screen cylinder, a submersible pump is arranged in the filter screen cylinder, and a water outlet of the submersible pump is communicated with the water outlet of the filter screen cylinder. A pair of disturbance devices is arranged on the outer side of the filter screen cylinder, and the disturbance devices are driven by a driving mechanism to rotate relative to the filter screen cylinder with the axis of the filter screen cylinder as the center. The device is reasonable in structure, economical and practical, is specially used for filtering surface water with high impurity content for drip irrigation, realizes the integrated integral structure design of a water pump and a filter body, realizes spray washing from inside to outside or from outside to inside by utilizing water flow of a high-pressure pump and combining a disturbance device, improves the self-cleaning effect of a filter screen, and improves the service life of the filter screen. The automatic backwashing and filtering efficiency is improved, and safety and convenience are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural irrigation filtration, in particular to a pump-filter integrated machine for irrigation. Background Art

[0002] In more and more areas, water-saving technologies are gradually adopted for crop planting. Drip irrigation emitters have strict requirements on the quality of irrigation water. Various filtering devices with different precisions need to be set up to filter impurities in the water source. Only when the water reaches a certain standard can it be used. Otherwise, the emitters will be blocked, affecting the normal operation of the irrigation system.

[0003] Currently, the filtering devices commonly used in irrigation systems mainly include centrifugal filters, sand filters, screen filters, and disc filters. The source water is pressurized by a water pump and then flows through the above-mentioned post-pump filters. The impurities and dirt in the water are intercepted in the filter, and the purified water flows out from the water outlet and is used for the irrigation system.

[0004] The pre-pump filter is a filter installed at the head of the irrigation system. When the liquid entering the pump passes through the filter screen in the filter cavity, large-particle impurities that may block or damage the pump are deposited on the filter screen, removing the impurities. At the same time, it reduces the working pressure of the post-pump filtration system, extends the working duration of the filtration system, and reduces energy consumption. Currently, most of the pre-pump filters in the field are simple filters installed in front of the pump. Impurities will be left on the filter screen after water passes through. Over time, the filter screen will be blocked, and it needs to be manually removed and cleaned regularly, increasing the workload of workers and making the filter inefficient and less economical. Whether it is a post-pump filter or a pre-pump filter, the pump and the filter are separately set, without achieving integrated management.

[0005] Affected by water quality, in the existing screen self-cleaning filter, during the backwashing process, some impurities will adhere to the inner wall of the filter screen. The impurities adhering to the inner wall of the filter screen rinsed by the backwashing nozzles are more difficult to remove. Moreover, there is a rinsing blind area on the outer surface of the filter screen during the backwashing process, and the impurities adhering to the outer wall of the filter screen cannot be removed, still affecting the self-cleaning effect of the filter screen.

[0006] This invention application pre-protects an economical and practical pump-filter integrated machine, which improves the self-cleaning efficiency while solving the above technical problems and realizes the integrated structure design of the pump and the filter. Summary of the Invention

[0007] The purpose of the utility model is to provide an irrigation pump-filter integrated machine with reasonable structure, economy and practicality, realizing the integrated overall structure design of the water pump and the filter body. It is specifically designed to filter surface water for drip irrigation with high impurity content. Utilizing the high-pressure pump water flow and combining with a disturbance device, it realizes spraying and washing from the inside to the outside or from the outside to the inside to improve the self-cleaning effect of the filter screen, as well as improve the automatic backwashing and filtration efficiency, which is safe and convenient.

[0008] The utility model discloses a pump and filter integrated machine for irrigation. The structure mainly includes a bracket and a filter screen cylinder. An outlet is arranged at the lower end of the filter screen cylinder. A submersible pump is arranged inside the filter screen cylinder, and the outlet of the submersible pump is communicated with the outlet of the filter screen cylinder. A pair of disturbance devices are arranged outside the filter screen cylinder. Driven by a driving mechanism, the disturbance devices rotate relative to the filter screen cylinder with the axis of the filter screen cylinder as the center.

[0009] Preferably, the structure of the utility model further includes a floating cylinder and a floating cylinder support rod. The floating cylinder is fixed on the floating cylinder support rod. A large protective cover is arranged at the upper end of the filter screen cylinder. The driving mechanism is arranged on the large protective cover. The driving mechanism is a speed reducer, and a motor protective cover is arranged above it.

[0010] Preferably, the structure of the disturbance device includes a semi-open arc-shaped shell cover and a front push plate. The front push plate is installed on one side of the semi-open arc-shaped shell cover, extends forward and is close to the outer wall of the filter screen cylinder.

[0011] Preferably, the structure further includes a high-pressure pump, a cantilever pipe, a high-pressure hose and a high-pressure pump inlet. The outlet of the high-pressure pump is communicated with the high-pressure hose. The high-pressure hose is communicated with the power output shaft of the speed reducer through a conversion device. The power output shaft is a hollow pipe shaft. The power output shaft is communicated with the cantilever pipe below. Both sides of the cantilever pipe are respectively connected with the disturbance devices. Driven by the power output shaft, the cantilever pipe and the disturbance devices rotate relative to the filter screen cylinder with the axis of the filter screen cylinder as the center. The conversion device refers to a stainless steel universal rotary joint in the prior art, which can be directly purchased in the market. This rotary joint is used to supply fluid with pressure, fluid below atmospheric pressure, etc. to the rotating part of various mechanical devices without leakage from the fixed piping, or to discharge.

[0012] The disturbance device is also provided with a high-pressure spraying part. The structure of the high-pressure spraying part includes a support pipe and high-pressure nozzles arranged on the support pipe. The support pipe and the high-pressure nozzles are arranged inside the semi-open arc-shaped shell cover and are communicated with the cantilever pipe.

[0013] Preferably, the opening of the semi-open arc-shaped shell cover faces the side wall of the filter screen cylinder. A plurality of high-pressure nozzles are arranged at intervals on the support pipe, and the openings of the high-pressure nozzles also face the side wall of the filter screen cylinder. The setting directions of the semi-open arc-shaped shell cover and the support pipe are vertically parallel to the side wall of the filter screen cylinder.

[0014] Preferably, the front push plate is made of an elastic material, and the distance between the front push plate and the outer wall of the filter screen cylinder is a preset gap, and the preset gap is adjustable.

[0015] Referring to the attached Figure 8 , the working principle of the pump-filter integrated machine of the present utility model is as follows:

[0016] Place the present utility model in sewage. The sewage flows from the outside to the inside of the filter mesh cylinder 4 with a rotating surface. The impurities intercepted by the filter mesh cylinder 4 adhere to the filter mesh cylinder or remain outside the filter mesh cylinder. The high-pressure pump 13 and the reducer 9 are started. Driven by the power output shaft, the cantilever pipe 14 and the disturbance device 6 rotate relative to the filter mesh cylinder 4 with the axis of the filter mesh cylinder 4 as the center; the high-pressure water flows through the high-pressure hose 11 and the cantilever pipe 14 and is delivered to the high-pressure nozzle 15 of the high-pressure spraying member 23. The high-pressure water sprayed by the high-pressure nozzle 15 impacts the filter mesh cylinder from the outside to the inside or from the inside to the outside to clean the impurities attached to the filter mesh cylinder; when the front push plate 17 at the front of the disturbance device 6 closely adheres to the filter mesh and rotates around the mesh surface to make a circular motion, part of the impurities are peeled off by the front push plate 17. As the agitator rotates, the water flow from the outside to the inside is cut off and interacts with the centrifugal water flow to form a vortex, separating some large impurities adhered to the filter mesh and pushing them to the water area away from the filter mesh.

[0017] When the disturbance device 6 makes a circular motion around the surface of the filter mesh, a dynamic negative pressure area will be formed behind the disturbance device 6. Under the action of the negative pressure, the filtered clean water is sucked out of the cylinder to form a dynamic jet-like water flow. The jet-like water flow is divided by the mesh holes to form a stream of water jets spraying out from the inside to the outside. This water flow has a strong impact force and will effectively wash down the impurities that still adhere to the filter mesh. At this time, a completely clean dynamic area will be formed on a part of the filter mesh immediately behind the negative pressure area.

[0018] Under the action of this cyclic motion, the mesh surface of the filter mesh is effectively cleaned, and the clean water is continuously pumped away to ensure the normal operation of the filter.

[0019] The present utility model adopts an integrated design of a filter and a submersible pump in terms of structure. During the continuous filtration and self-cleaning process of the filter, the filtered clean water is continuously output.

[0020] Compared with the prior art, the advantages of the present utility model are as follows:

[0021] The present utility model mainly solves the problem of filtering the extremely poor water quality of the surface irrigation water in the forebay of the farmland irrigation system.

[0022] Due to water quality problems, after the pump-filter integrated machine is started, the front push plate 17 in front of the disturbance device 6 strips off some impurities. At this time, if the filter cannot meet the filtration requirements during operation, the high-pressure pump 13 is started, and the high-pressure water flow passes through the high-pressure water pipe 11 and is then delivered to the high-pressure spray parts 23 at both ends. The high-pressure water flow sprayed out from the high-pressure nozzles 15 on the outer or inner side of the filter mesh cylinder 4 impacts on the filter mesh, further cleaning the impurities attached to the filter mesh. After the impurities are washed down, they flow into the debris collector with the water flow. Thus, the technical effects of continuous filtration, continuous sewage cleaning, and automatic cleaning are achieved.

[0023] The filter of the present utility model can realize uninterrupted water supply, has a self-cleaning function, is not easy to be blocked, and is convenient for installation, and can meet the water quality requirements of different irrigation projects. The water quality filtered by it can meet the standard requirements of the drip irrigation system without further filtration, which not only reduces the equipment cost and labor intensity but also improves the economic benefits.

[0024] The pump-filter integrated machine of the present utility model can not only greatly reduce the loss of water filtration treatment population but also reduce the possibility of filter blockage, and has a significant effect on improving the irrigation uniformity. The filter and the submersible pump are integrally designed, and the water filtered by the filter can be directly pumped away by the submersible pump and output through the water outlet below the filter mesh cylinder. This overall design effectively prevents the submersible pump from being blocked and is more convenient and practical.

[0025] The structure of the present utility model is reasonable, economical and practical, and is specially designed for filtering surface water with high impurity content for drip irrigation. By using the high-pressure pump water flow and combining with the disturbance device, it realizes the self-cleaning effect of the filter mesh by spraying and washing from the inside to the outside or from the outside to the inside, as well as improves the automatic backwashing and filtration efficiency, which is safe and convenient. Brief Description of the Drawings

[0026] Figure 1 It is a three-dimensional structure schematic diagram of the pump-filter integrated machine of the present utility model in Embodiment 1.

[0027] Figure 2 It is a three-dimensional structure schematic diagram of the pump-filter integrated machine of the utility model from another angle.

[0028] Figure 3 It is a front view structure schematic diagram of the utility model.

[0029] Figure 4 For Figure 3 the sectional structure schematic diagram in the A-A direction of

[0030] Figure 5 It is a structure schematic diagram of the installation position relationship of the high-pressure pump, the reducer, the cantilever pipe, the disturbance device, and the filter mesh cylinder in Embodiment 2 of the present utility model.

[0031] Figure 6Schematic structural diagram of the installation position relationship among the high-pressure pump, speed reducer, cantilever pipe, disturbance device, and high-pressure injection part in Embodiment 2 of the present utility model.

[0032] Figure 7 Schematic structural diagram of the installation position relationship between the disturbance device and the high-pressure injection part in Embodiment 2 of the present utility model.

[0033] Figure 8 Working principle diagram of the pump-filter integrated machine in Embodiment 2 of the present utility model.

[0034] As shown in the figure: 1 is the motor shield, 2 is the large shield, 3 is the floating cylinder, 4 is the filter mesh cylinder, 41 is the submersible pump, 5 is the bracket, 6 is the disturbance device, 7 is the water outlet, 8 is the floating cylinder support rod, 9 is the speed reducer, 10 is the conversion device, 11 is the high-pressure hose, 12 is the high-pressure pump water inlet, 13 is the high-pressure pump, 14 is the cantilever pipe, 15 is the high-pressure nozzle, 16 is the support pipe, 17 is the front push plate, 18 is the semi-open arc-shaped shell cover, and 19 is the impurity. Specific embodiments

[0035] The technical solutions of the embodiments of the present utility model will be explained and described below with reference to the accompanying drawings of the embodiments. However, the following embodiments are only the preferred embodiments of the present utility model, not all of them; based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0036] Embodiment 1:

[0037] Refer to Figures 1 - 4 , which is the structural schematic diagram of the embodiment of the present utility model. A pump-filter integrated machine for irrigation mainly includes a bracket 5 and a filter mesh cylinder 4. The lower end of the filter mesh cylinder 4 is provided with a water outlet 7. A submersible pump 41 is arranged inside the filter mesh cylinder 4, and the water outlet of the submersible pump 41 is communicated with the water outlet 7 of the filter mesh cylinder 4. A pair of disturbance devices 6 are arranged outside the filter mesh cylinder 4. Driven by a driving mechanism, the disturbance devices 6 rotate relative to the filter mesh cylinder 4 with the axis of the filter mesh cylinder 4 as the center.

[0038] Its structure further includes a floating cylinder 3 and a floating cylinder support rod 8. The floating cylinder 3 is fixed on the floating cylinder support rod 8. A large shield 2 is arranged at the upper end of the filter mesh cylinder 4. The driving mechanism is arranged on the large shield 2. The driving mechanism is a speed reducer 9, and a motor shield 1 is arranged above it.

[0039] The structures of the bilateral disturbance devices 6 include a semi-open arc-shaped shell cover 18 and a front push plate 17. The front push plate 17 is installed on one side of the semi-open arc-shaped shell cover 18, extends forward and is close to the outer wall of the filter mesh cylinder 4.

[0040] The disturbance device 6 rotates around the outer side of the filter screen cylinder 4 driven by the speed reducer 9 on the outer side of the filter screen cylinder 4. The provided front push plate 17 continuously removes the impurities adhering to the outer wall of the cylinder, achieving the effect of self-cleaning. The filter and the submersible pump are integrally designed, and the water filtered by the filter can be directly pumped out through the submersible pump. This integral design can effectively prevent the blockage of the submersible pump and is more convenient and practical.

[0041] Embodiment 2:

[0042] Referring to Figures 5 - 8 , which is a schematic structural diagram of an embodiment of the present invention. Compared with Embodiment 1, the difference in this embodiment is that: a high-pressure pump 13, a cantilever pipe 14, a high-pressure hose 11, and a high-pressure pump water inlet 12 are further provided above the filter screen cylinder 4; the water outlet of the high-pressure pump 13 is communicated with the high-pressure hose 11, and the high-pressure hose 11 is communicated with the power output shaft of the speed reducer 9 through a conversion device 10, that is, a rotary joint. The power output shaft is a hollow pipe shaft, and the power output shaft is communicated with the cantilever pipe 14 below. The two sides of the cantilever pipe 14 are respectively connected to the disturbance device 6. The cantilever pipe 14 and the disturbance device 6 rotate relative to the filter screen cylinder 4 with the axis of the filter screen cylinder 4 as the center under the drive of the power output shaft.

[0043] The disturbance device 4 is also equipped with a high-pressure spraying member 23. The structure of the high-pressure spraying member includes a support pipe 16 and high-pressure nozzles 15 provided on the support pipe 16. The support pipe 16 and the high-pressure nozzles 15 are arranged inside a semi-open arc-shaped housing 18 and are communicated with the cantilever pipe 14.

[0044] The opening of the semi-open arc-shaped housing 18 faces the side wall of the filter screen cylinder 4. A plurality of high-pressure nozzles 15 are arranged at intervals on the support pipe, and the openings of the high-pressure nozzles 15 also face the side wall of the filter screen cylinder 4; the arrangement directions of the semi-open arc-shaped housing 18 and the support pipe 16 are vertically parallel to the side wall of the filter screen cylinder 4.

[0045] The front push plate 17 is made of an elastic material, and the distance between the front push plate 17 and the outer wall of the filter screen cylinder is a preset gap, and the preset gap is adjustable.

[0046] The working process of the pump-filter integrated machine of the present invention:

[0047] The filter screen cylinder 4 is placed in sewage, and the sewage flows from the outside to the inside of the filter screen cylinder 4 with a rotating surface. The impurities intercepted by the filter screen cylinder 4 adhere to the filter screen cylinder or remain outside the filter screen cylinder. The high-pressure pump 13 and the reducer 9 are started. The cantilever pipe 14 and the disturbance device 6 are driven by the power output shaft to rotate relative to the filter screen cylinder 4 with the axis of the filter screen cylinder 4 as the center; the high-pressure water flows through the high-pressure hose 11 and the cantilever pipe 14 and is transported to the high-pressure nozzle 15 of the high-pressure injection member 23. The high-pressure water flow sprayed by the high-pressure nozzle 15 impacts the filter screen cylinder from the outside to the inside to clean the impurities attached to the filter screen cylinder; when the front push plate 17 at the front of the disturbance device 6 is close to the filter screen and rotates around the screen surface to make a circular motion, a part of the impurities are peeled off by the front push plate 17. As the disturbance device rotates, the water flow from the outside to the inside is cut off, and interacts with the water flow of the centrifugal motion to form a vortex, which separates some large impurities attached to the filter screen and pushes them to the water area away from the filter screen.

[0048] When the disturbance device 6 makes a circular motion around the surface of the filter, a dynamic negative pressure zone will be formed behind the disturbance device 6. Under the action of negative pressure, the filtered clean water is sucked out of the cylinder to form a dynamic jet-like water flow. The jet-like water flow is divided by the mesh to form a stream of water that is ejected from the inside to the outside. The water flow has a strong impact force and will effectively wash away the impurities that continue to adhere to the filter. At this time, a part of the filter immediately behind the negative pressure zone will form a completely clean dynamic zone.

[0049] Under the action of this cyclical movement, the mesh surface of the filter is effectively cleaned and clean water is continuously pumped away to ensure that the filter can work normally.

[0050] This embodiment adopts an integrated design of the filter and the submersible pump in structure, and the filtered clean water is continuously output during the process of continuous filtering and self-cleaning of the filter.

[0051] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the protection scope of the claims.

Claims

1. A pump and filter integrated machine for irrigation, the structure mainly includes a bracket and a filter screen cylinder. The lower end of the filter screen cylinder is provided with a water outlet, and it is characterized in that A submersible pump is provided inside the filter screen cylinder, and the water outlet of the submersible pump is communicated with the water outlet of the filter screen cylinder; a pair of disturbance devices are provided outside the filter screen cylinder, and driven by a driving mechanism, the disturbance devices rotate relative to the filter screen cylinder with the axis of the filter screen cylinder as the center.

2. The integrated pump and filter for irrigation according to claim 1, characterized in that: Its structure further includes a floating cylinder and a floating cylinder support rod. The floating cylinder is fixed on the floating cylinder support rod. A large protective cover is provided at the upper end of the filter screen cylinder. The driving mechanism is arranged on the large protective cover. The driving mechanism is a reducer, and a motor protective cover is provided above it.

3. The integrated pump and filter for irrigation according to claim 1 or 2, characterized in that: The structure of the disturbance device includes a semi-open arc-shaped shell cover and a front push plate. The front push plate is installed on one side of the semi-open arc-shaped shell cover, extends forward and is close to the outer wall of the filter screen cylinder.

4. The integrated pump and filter for irrigation according to claim 3, characterized in that: Its structure further includes a high-pressure pump, a cantilever pipe, a high-pressure hose and a high-pressure pump water inlet; the water outlet of the high-pressure pump is communicated with the high-pressure hose, the high-pressure hose is communicated with the power output shaft of the reducer through a conversion device. The power output shaft is a hollow pipe shaft, the power output shaft is communicated with the cantilever pipe below, and both sides of the cantilever pipe are respectively connected with the disturbance device. Driven by the power output shaft, the cantilever pipe and the disturbance device rotate relative to the filter screen cylinder with the axis of the filter screen cylinder as the center; The disturbance device is also provided with a high-pressure spraying part. The structure of the high-pressure spraying part includes a support pipe and high-pressure nozzles arranged on the support pipe. The support pipe and the high-pressure nozzles are arranged inside the semi-open arc-shaped shell cover and are communicated with the cantilever pipe.

5. The integrated pump and filter for irrigation according to claim 4, wherein The opening of the semi-open arc-shaped shell cover faces the side wall of the filter screen cylinder. A plurality of high-pressure nozzles are arranged at intervals on the support pipe, and the openings of the high-pressure nozzles also face the side wall of the filter screen cylinder; the setting directions of the semi-open arc-shaped shell cover and the support pipe are vertically parallel to the side wall of the filter screen cylinder.

6. The integrated pump and filter for irrigation according to claim 5, wherein The front push plate is made of an elastic material, and the distance between the front push plate and the outer wall of the filter screen cylinder is a preset gap, and the preset gap is adjustable.

Images