Filter in front of vortex and high-pressure spray washing pump

Abstract

The utility model relates to the technical field of agricultural irrigation machinery, in particular to a vortex and high-pressure spraying pump front filter which comprises a support, a filter screen cylinder, a driving mechanism, a cantilever pipeline, a vortex high-pressure spraying device, a high-pressure hose and a high-pressure water inlet. Vortex high-pressure jetting devices are arranged on the two sides of the cantilever pipeline respectively, and the cantilever pipeline and the vortex high-pressure jetting devices are driven by a power output shaft to rotate relative to the filter screen cylinder; the vortex high-pressure jetting device comprises a vortex disturbance part and a high-pressure jetting part. The self-cleaning filter screen is reasonable in structure, economical, practical, safe and convenient, 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 the filter screen, and improves the automatic backwashing and filtering efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural irrigation machinery, in particular to a pre-filter for eddy current and high-pressure spray pump for irrigation. Background Technique

[0002] The phenomenon of surface water pollution in agricultural irrigation is very common. Its pollution sources mainly include physical pollutants (sand grains, soil, plant residues, leaves, mineral debris, plastic fragments, etc.) and organic pollutants (viscous secretions produced by the growth of bacteria, fungi, etc.). The pollution of water quality is often the result of the combined action of multiple pollutants. The existence of these pollutants seriously affects the potential of the efficient irrigation system mainly supported by drip irrigation technology. Currently, for the filtration of such substances, a simple fence device is mostly used. After the water flows through a rough blocking treatment, a large amount of pollutants (usually with a size specification of <20mm) enter the sedimentation tank. Generally, it also has to go through a sand + mesh or mesh self-cleaning filter, and finally enters the field for irrigation. During use, the fence is often blocked and very difficult to clean, often resulting in a large amount of pollutants entering the filter, and it is very easy to block the filter in a very short time. Frequent shutdown maintenance of the filtration system will greatly reduce the irrigation work efficiency and seriously affect the normal progress of irrigation work.

[0003] The pre-filter for the pump is a filter installed at the head of the drip irrigation system. When the liquid entering the pump passes through the filter screen inside the filter cavity, large-particle impurities that may block or damage the pump are deposited on the filter screen, and the impurities are completely filtered out. At the same time, the working pressure of the post-filter system of the pump is reduced, the working duration of the filtration system is extended, and energy loss is reduced. Currently, most of the pre-filters for the pump in the field are simple filters. Installed in front of the pump, impurities will be left on the filter screen after the water passes through. After a long time, the filter screen will be blocked and needs to be manually removed and cleaned regularly, which increases the workload of workers and also makes the filter inefficient and less economical.

[0004] Affected by the domestic water quality, in the existing mesh 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 that are rinsed by the backwashing nozzles are more difficult to remove, and there is a rinsing blind area on the outer surface of the filter screen during the backwashing process. The impurities adhering to the outer wall of the filter screen will not be removed and will still affect the self-cleaning effect of the filter screen. Summary of the Invention

[0005] The purpose of the utility model is to provide a pre-filter for eddy current and high-pressure spray pump with reasonable structure, economy and practicability, which is specifically used for filtering surface water for irrigation with high impurity content. By using the water flow of the high-pressure pump and combining with the 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.

[0006] The utility model discloses a pre-filter for an eddy current and high-pressure washing pump, and its structure mainly includes a bracket and a filter screen cylinder. An outlet is provided at the lower end of the filter screen cylinder. It also includes a high-pressure pump, a reducer, a cantilever pipe, an eddy current high-pressure spraying device, a high-pressure hose and a high-pressure pump water inlet; the high-pressure pump and the reducer are arranged above the filter screen cylinder. 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, and the power output shaft is communicated with the cantilever pipe below. Eddy current high-pressure spraying devices are respectively arranged on both sides of the cantilever pipe. Driven by the power output shaft, the cantilever pipe and the eddy current high-pressure spraying device 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 pressurized fluids, fluids below atmospheric pressure, etc. to the rotating parts of various mechanical devices without leakage from fixed pipes, or to discharge them.

[0007] The eddy current high-pressure spraying device includes an eddy current disturbing part and a high-pressure spraying part.

[0008] The structure of the eddy current disturbing part includes a semi-open shell cover and a front push plate. The front push plate is installed on one side of the semi-open shell cover, extends forward and is close to the outer wall of the filter screen cylinder;

[0009] 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 shell cover and are communicated with the cantilever pipe. Both the eddy current disturbing part and the high-pressure spraying part are arranged outside the filter screen cylinder;

[0010] Or, the eddy current disturbing part is arranged outside the filter screen cylinder, the support pipe and the high-pressure nozzles are arranged inside the filter screen cylinder, the positions correspond to the eddy current disturbing part outside, and are communicated with the cantilever pipe through pipelines.

[0011] Preferably, the opening of the semi-open 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 arrangement directions of the semi-open shell cover and the support pipe are vertically parallel to the side wall of the filter screen cylinder.

[0012] 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.

[0013] Preferably, the structure further includes a buoy and a buoy support rod. The buoy is fixed on the buoy support rod. A large protective cover is provided at the upper end of the filter screen cylinder, and a motor protective cover is provided above the high-pressure pump and the reducer.

[0014] Preferably, when the support pipe and the high-pressure nozzle are arranged inside the filter screen cylinder, the pipeline communicating with the cantilever pipeline includes a vertical pipe provided below the cantilever pipeline and horizontal pipes provided on both sides of the vertical pipe. The cantilever pipeline is communicated with the support pipes on both sides through the vertical pipe and the horizontal pipes.

[0015] The working process of the pre-pump filter of the present invention is as follows:

[0016] 1. The high-pressure pump and the reducer start to work;

[0017] 2. The eddy current high-pressure spraying device rotates continuously, and impurities are continuously washed off;

[0018] 3. As the eddy current high-pressure spraying device moves away, impurities adhere again;

[0019] 4. As time goes by, the accumulation amount of impurities becomes more and more;

[0020] 5. Immediately, they are washed off by the next arriving eddy current high-pressure spraying device.

[0021] The cycle process is as follows: being adhered → being washed → being adhered again → being washed again.

[0022] The working principle of the pre-pump filter of the present invention:

[0023] Place the filter screen cylinder in the sewage. The sewage flows from the outside to the inside of the filter screen cylinder with a rotating surface. The impurities intercepted by the filter screen cylinder adhere to the filter screen cylinder or remain outside the filter screen cylinder. The high-pressure pump and the reducer are started. Driven by the power output shaft, the cantilever pipeline and the eddy current high-pressure spraying device rotate relative to the filter screen cylinder with the axis of the filter screen cylinder as the center. The high-pressure water flows through the high-pressure hose and the cantilever pipeline and is delivered to the high-pressure nozzle of the eddy current high-pressure spraying device. The high-pressure water jet ejected by the high-pressure nozzle impacts the filter screen cylinder from the outside to the inside or from the inside to the outside to wash the impurities attached to the filter screen cylinder. When the front push plate in front of the eddy current disturbing part closely adheres to the filter screen and makes a circular motion, part of the impurities are peeled off by the front push plate. As the disturbing device rotates, the water flow from the outside to the inside is cut off and interacts with the centrifugal water flow to form an eddy current, separating some large impurities adhered to the filter screen and pushing them to the water area far from the filter screen.

[0024] When the vortex disturbance piece makes a circular motion around the surface of the filter, a dynamic negative pressure zone will be formed behind the vortex disturbance piece. 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 streams of water ejected from the inside to the outside. This 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 screen adjacent to the negative pressure zone will form a completely clean dynamic zone.

[0025] 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.

[0026] Compared with the prior art, the advantages of this utility model are:

[0027] The utility model mainly solves the problem of extremely poor quality of surface irrigation water in the front pool of a farmland irrigation system.

[0028] Due to water quality issues, when the pump-filter system is turned on, the front push plate at the front of the disturbance device removes some impurities. If the filter cannot meet the filtration requirements under normal operation, the high-pressure pump is turned on. The high-pressure water flows through the high-pressure water pipe 11 and is delivered to the high-pressure spray devices at both ends. The high-pressure water jetted from the high-pressure nozzles on the outside or inside of the filter cylinder impacts the filter screen, further cleaning the impurities attached to the filter screen. After being cleaned, the impurities flow into the debris collector with the water flow, thus achieving the technical effects of continuous filtration, continuous cleaning, and automatic cleaning.

[0029] This new filter ensures uninterrupted water supply, has a self-cleaning function, is non-clogging, and is easy to install. It can meet the water quality requirements of different irrigation projects. The filtered water meets the standard requirements of drip irrigation systems without the need for further filtration, thus reducing equipment costs and labor intensity while improving economic benefits.

[0030] This new pre-pump filter not only significantly reduces energy loss during the water filtration process but also reduces the likelihood of emitter clogging, significantly improving irrigation uniformity. Its rational structure and economical practicality make it specifically designed for filtering surface water with high impurity content for drip irrigation. Utilizing a high-pressure pump flow combined with a disturbance device, it sprays and washes the filter from the inside out or the outside in, improving the filter's self-cleaning properties and enhancing automatic backwashing and filtration efficiency. It is safe and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of the pre-pump filter in Example 1 of the present utility model.

[0032] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model pre-pump filter from another angle.

[0033] Figure 3 It is a front view structural schematic diagram of the utility model pump pre-filter.

[0034] Figure 4 It is Figure 3 a left view structural schematic diagram after partial section of

[0035] Figure 5 It is a structural schematic diagram of the installation position relationship of the high-pressure pump, reducer, cantilever pipe, and eddy current high-pressure injection device in Embodiment 1 of the present utility model.

[0036] Figure 6 It is a structural schematic diagram of the installation position relationship of the eddy current disturbance member and the high-pressure injection member of the eddy current high-pressure injection device in Embodiment 1 of the present utility model.

[0037] Figure 7 It is a working principle diagram of the pump pre-filter in Embodiment 1 of the present utility model.

[0038] Figure 8 It is a structural schematic diagram of the installation position relationship of the eddy current disturbance member and the high-pressure injection member of the high-pressure pump, reducer, cantilever pipe, and eddy current high-pressure injection device in Embodiment 2 of the present utility model.

[0039] Figure 9 It is Figure 8 a structural schematic diagram of the installation position relationship of the eddy current disturbance member and the high-pressure injection member of the eddy current high-pressure injection device after removing the filter mesh cylinder.

[0040] 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, 5 is the bracket, 6 is the eddy current high-pressure injection device, 7 is the water outlet, 8 is the floating cylinder support rod, 9 is the 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 shell cover, 19 is the impurity, 20 is the riser pipe, 21 is the horizontal pipe, 22 is the mesh cylinder bottom plate, 23 is the eddy current disturbance member, and 24 is the high-pressure injection member. Specific Embodiments

[0041] 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 and not all of them; based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present utility model.

[0042] Embodiment 1:

[0043] Referring to Figures 1-7, is a schematic structural diagram of an embodiment of the present utility model. A pre-filter for an eddy current and high-pressure spray pump, the structure of which mainly includes a bracket 5 and a filter screen cylinder 4. A water outlet 7 is provided at the lower end of the filter screen cylinder 4, and there are also a high-pressure pump 13, a speed reducer 9, a cantilever pipe 14, an eddy current high-pressure spraying device 6, a high-pressure hose 11 and a high-pressure pump water inlet 12; the high-pressure pump 13 and the speed reducer 9 are arranged above the filter screen cylinder 4. The water outlet of the high-pressure pump 13 is communicated with the high-pressure hose 11. 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 lower cantilever pipe 14. Eddy current high-pressure spraying devices 6 are respectively arranged on both sides of the cantilever pipe 14. Driven by the power output shaft, the cantilever pipe 14 and the eddy current high-pressure spraying device 6 rotate relative to the filter screen cylinder 4 with the axis of the filter screen cylinder 4 as the center.

[0044] The eddy current high-pressure spraying device 6 includes an eddy current disturbing member 23 and a high-pressure spraying member 24.

[0045] The structure of the eddy current disturbing member 23 includes a semi-open shell cover 18 and a front push plate 17. The front push plate 17 is installed on one side of the semi-open shell cover 18, extends forward and is close to the outer wall of the filter screen cylinder 4.

[0046] The structure of the high-pressure spraying member 24 includes a support pipe 16 and high-pressure nozzles 15 arranged on the support pipe. The support pipe 16 and the high-pressure nozzles 15 are arranged inside the semi-open shell cover 18 and are communicated with the cantilever pipe 14. Both the eddy current disturbing member 23 and the high-pressure spraying member 24 are arranged outside the filter screen cylinder 4.

[0047] The opening of the semi-open shell cover 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 16, 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 shell cover 18 and the support pipe 16 are vertically parallel to the side wall of the filter screen cylinder 4.

[0048] 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.

[0049] The pre-filter for the eddy current and high-pressure spray pump 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 protective cover 2 is arranged at the upper end of the filter screen cylinder 4, and a motor protective cover 1 is arranged above the high-pressure pump 13 and the speed reducer 9.

[0050] The working principle of the pre-filter of the present utility model:

[0051] Place the filter screen cylinder 4 in the sewage. 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 adhere to the filter screen cylinder or remain outside the filter screen cylinder. The high-pressure pump 13 is turned on, and 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 eddy current high-pressure spraying device 6. The high-pressure water jet ejected by the high-pressure nozzle 15 impacts the filter screen cylinder from the outside to the inside or from the inside to the outside to clean the impurities adhering to the filter screen cylinder 4. When the front push plate 17 of the eddy current disturbing part 23 slides closely along the filter screen across the mesh surface, part of the impurities are peeled off by the front push plate 17. As the eddy current disturbing part 23 rotates, the water flow from the outside to the inside is cut off and interacts with the water flow in centrifugal motion to form an eddy current, separating some large impurities adhering to the filter screen and pushing them to the water area away from the filter screen.

[0052] When the eddy current disturbing part 23 makes a circular motion around the filter screen surface, a dynamic negative pressure area will be formed behind the eddy current disturbing part 23. Under the action of the negative pressure, the filtered clean water is sucked out from 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 ejected from the inside to the outside. This water flow has a strong impact force and can effectively wash down the impurities that still adhere to the filter screen.

[0053] Under the action of this cyclic motion, the mesh surface of the filter screen is effectively cleaned, and the clean water is continuously pumped away to ensure the normal operation of the filter.

[0054] Embodiment 2:

[0055] Refer to the attached Figure 8 and the attached Figure 9 Compared with Embodiment 1, the difference is that the eddy current disturbing part 23 is arranged outside the filter screen cylinder 4, and the high-pressure spraying part 24 composed of the support pipe 16 and the high-pressure nozzle 15 is arranged inside the filter screen cylinder 4, corresponding to the eddy current disturbing part 23 outside in position and connected to the cantilever pipe 14 through a pipeline.

[0056] When the high-pressure spraying part 24 is arranged inside the filter screen cylinder, the pipeline connected to the cantilever pipe 14 includes a riser 20 arranged below the cantilever pipe 14 and horizontal pipes 21 arranged on both sides of the riser 20. The cantilever pipe 14 is connected to the support pipes 16 on both sides through the riser 20 and the horizontal pipes 21.

[0057] The above is only the specific implementation manner 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 content described in the drawings and the above specific implementation manner. 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. An eddy current and high-pressure spray washing pump pre-filter, the structure of which mainly includes a bracket and a filter mesh cylinder. The lower end of the filter mesh cylinder is provided with a water outlet, and it is characterized in that It further includes a high-pressure pump, a speed reducer, a cantilever pipe, a vortex high-pressure spraying device, a high-pressure hose and a high-pressure pump water inlet; the high-pressure pump and the speed reducer are arranged above the filter screen cylinder, 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 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, and vortex high-pressure spraying devices are respectively arranged on both sides of the cantilever pipe. Driven by the power output shaft, the cantilever pipe and the vortex high-pressure spraying device rotate relative to the filter screen cylinder with the axis of the filter screen cylinder as the center.

2. The pre-filter for the eddy current and high-pressure spray pump according to claim 1, characterized in that The vortex high-pressure spraying device includes a vortex disturbing part and a high-pressure spraying part; The structure of the vortex disturbing part includes a semi-open shell cover and a front push plate. The front push plate is installed on one side of the semi-open shell cover, extends forward and is close to the outer wall of the filter screen cylinder; 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 shell cover and are communicated with the cantilever pipe. Both the vortex disturbing part and the high-pressure spraying part are arranged outside the filter screen cylinder; Alternatively, the vortex disturbing part is arranged outside the filter screen cylinder, and the high-pressure spraying part composed of the support pipe and the high-pressure nozzles is arranged inside the filter screen cylinder, corresponding to the vortex disturbing part outside in position and communicated with the cantilever pipe through a pipeline.

3. The pre-filter for the eddy current and high-pressure spray pump according to claim 2, characterized in that The opening of the semi-open 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 shell cover and the support pipe are vertically parallel to the side wall of the filter screen cylinder.

4. The vortex and high-pressure spray pump pre-filter according to claim 2 or 3, characterized in that 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.

5. The pre-filter of the eddy current and high-pressure spray pump according to claim 4, 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 arranged at the upper end of the filter screen cylinder, and a motor protective cover is arranged above the high-pressure pump and the speed reducer.

6. The eddy current and high-pressure spray pump pre-filter according to claim 2 or 3, characterized in that When the support pipe and the high-pressure nozzles are arranged inside the filter screen cylinder, the pipeline communicated with the cantilever pipe includes a riser arranged below the cantilever pipe and horizontal pipes arranged on both sides of the riser. The cantilever pipe is communicated with the support pipes on both sides through the riser and the horizontal pipes.

7. The pre-filter for the eddy current and high-pressure spray pump according to claim 5, characterized in that When the support pipe and the high-pressure nozzles are arranged inside the filter screen cylinder, the pipeline communicated with the cantilever pipe includes a riser arranged below the cantilever pipe and horizontal pipes arranged on both sides of the riser. The cantilever pipe is communicated with the support pipes on both sides through the riser and the horizontal pipes.

Images