CN209885313U - Fiber filter for micro-irrigation - Google Patents
Fiber filter for micro-irrigation Download PDFInfo
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- CN209885313U CN209885313U CN201821932188.3U CN201821932188U CN209885313U CN 209885313 U CN209885313 U CN 209885313U CN 201821932188 U CN201821932188 U CN 201821932188U CN 209885313 U CN209885313 U CN 209885313U
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Abstract
The present application provides a fiber filter for micro-irrigation. A fibrous filter for micro-irrigation comprising: a tank having a water inlet and a water outlet; the fiber filter material layer is arranged between the water inlet and the water outlet in the tank body and is used for filtering water flowing in through the water inlet. According to the application, the fiber filter for micro-irrigation can efficiently treat the filtration of silt-containing sand in water.
Description
Technical Field
The application relates to an irrigation system for micro-irrigation, in particular to a fiber filter for micro-irrigation.
Background
Common filters used in micro-irrigation systems are sand media filters, centrifugal plus screen or centrifugal plus disc filters, and disc filters.
The sandstone medium filter is also called quartz sand filter and sand filter, which is a filter for carrying out three-dimensional deep filtration by using a sand bed formed by homogeneous quartz sand with equal particle size as a filter carrier, and is commonly used for primary filtration. The sand-stone medium filter is mainly designed and used in a pressing force type filter in a micro-irrigation system, the depth of the sand-stone medium filter is 700 mm higher than that of the ordinary pressure type filter according to the thickness of a sand layer, the depth of the sand-stone medium filter is about 500 mm lower than that of the sand layer, the sand-stone medium filter is called shallow sand filtration, the sand-stone medium filter belongs to the deep layer precise filtration category, and deep layer adsorption is mainly relied on. The sandstone medium filter is suitable for treating micro-irrigation source water mainly containing organic matters, has certain pressure loss, and must be matched with other filters, such as a net type filter or a stacked type filter, to be used in two stages in the micro-irrigation to prevent a filter layer from penetrating and a filter layer from being short-circuited. The sandstone medium filter has manual cleaning and full-automatic self-cleaning control modes, manual cleaning is generally not recommended in micro-irrigation, and the filter has high operation requirement, is not well controlled and is difficult to ensure good operation of the filter. In addition, when the filter is combined with a net filter or a stacked filter, the quality of the matched filters needs to be very important, once the sand filtration is penetrated and short-circuited, the sand filtration can only be carried out by the security filtration of the next stage, even the impurities enter an irrigation system to cause uneven irrigation, and the drippers are seriously blocked to stop the irrigation.
The centrifugal plus screen type or centrifugal plus laminated sheet type filter is a combination of a centrifugal separator (also called cyclone separator) and a screen type or laminated sheet type filter. The centrifugal separator separates out the sand and stone solid particles contained in the micro-irrigation water source water by utilizing the centrifugal force and the sedimentation principle, so that the water quality is primarily purified, and the centrifugal separator is mainly applied to taking deslimed sand in agricultural micro-irrigation. Because the structure is simple, no moving part is arranged, and a certain separation effect is achieved under reasonable design and use conditions. The filter can meet the requirement of micro-irrigation water quality and can be applied by matching with a following net type or stacked type filter, and is often recommended to treat a micro-irrigation system taking well water as an irrigation water source and mainly treat inorganic matters such as silt and the like. The micro-irrigation centrifugal separator generally has a water resistance of 3 to 7 meters, and the separation effect is better when the water resistance is larger. The flow velocity of the water body is also required, the separation effect is relatively high due to high flow velocity, but the abrasion of particles to the shell is easy to occur due to too high flow velocity, and the silt which cannot be separated along with the water flow to the rear can only be filtered by the security of a screen filter or a lamination filter. Like the previous sand plus screen or laminated, the two matched filters must have high reliability to be used well. When the centrifugal plus net type or centrifugal plus overlapped type filter is combined with a centrifugal separator, the automatic control is not much, and most of the centrifugal plus net type or centrifugal plus overlapped type filters adopt manual sand discharge and manual cleaning. After the sand removing machine is used for some time, manual sand removing and filter screen or lamination cleaning are needed, and the operation convenience and the reliability are not high.
The laminated filter is also called disc filter, and is formed by stacking a group of plastic discs with grooves in different directions on both sides, wherein the edges of the grooves on the adjacent surfaces form a plurality of cross points, the cross points form a large number of cavities and irregular passages, and the passages are continuously reduced from outside to inside. During filtration, these passages cause turbulence in the water, eventually causing the impurities in the water to be intercepted at the various intersections, creating a screen through which numerous impurity particles cannot pass. The lamination material is high-quality engineering plastics, and the wearability is high. Since these disks are stacked to form a filter element, the filter element must be compressed in the filtration state and loosened in the cleaning state, so that it can be classified into the filtration category of the surface layer with variable pores. The design flow of the independent unit of the laminated filter is not large, and generally a system is formed by more than two filtering units. More units are needed to run in parallel for larger flow, and the functions of manual cleaning and full-automatic self-cleaning can be realized. When a large amount of flow is provided by the parallel operation of a plurality of units, control nodes are increased greatly, and reliability fault points are increased relatively. At present, the method is more applied to a small-flow system. The laminated filter can effectively filter most organic and inorganic matters under the condition of certain system pressure, and the key point is that the cleaned laminated is reset, and if the reset is not good, the filtering precision is not ensured.
The screen filter is a very traditional filter which is also the most widely used filter, and is a filter medium body which is processed into holes and gaps with certain precision by using wires, strips, rods or plates through the processing technologies of weaving, welding, punching, sintering and the like, wherein the common filter medium bodies are woven meshes, wedge-shaped metal wire meshes, laser punching meshes, sintered plate meshes and the like. The filter medium body is processed into plate frame type, cylinder type, cone type and other forms through different processes, and is matched with a shell for fixing a filter screen, a sealing assembly or a screen filter added with a cleaning device to form the filter medium. From the filtration angle, the screen filter can ensure the precision requirement of the filtered water quality under certain precision, and realizes the separation of the source water by utilizing the aperture precision of the filter body and the interception, accumulation, bridge frame and other mechanisms of impurity bodies needing to be filtered in the source water. The method belongs to surface filtration, and theoretically, impurities larger than a sieve pore can be effectively intercepted. It is suitable for filtering inorganic substances such as silt and rust and most organic substances such as algae and colloidal substances. However, under the pushing of the system pressure, the impurities are broken and penetrated mainly by the action of shearing force, and mainly comprise organic matters such as algae, colloidal substances and the like. The penetration after crushing can be ensured by controlling the differential pressure value before and after filtering. The screen filter has control modes of manual cleaning, full-automatic self-cleaning and the like, and generally, in a micro-irrigation system, a small flow rate is large in manual cleaning, and a large flow rate is selected from a full-automatic self-cleaning mode. The key point is the pressure difference control and cleaning (regeneration) effect, and the poor effect can cause frequent self-cleaning, influence the effluent flow and the waste of sewage, and can be used after manual cleaning under severe conditions.
Therefore, a new filter is still needed to meet the requirement of agricultural micro-irrigation.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present invention and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fiber filter for slight irrigation can the filtration that contains silt particle in the high-efficient processing aquatic.
Other features and advantages of the invention will be apparent from the following detailed description, or may be learned by practice of the invention in part.
According to an aspect of the utility model, a provide a fiber filter for slight irrigation, include:
a tank having a water inlet and a water outlet;
the fiber filter material layer is arranged between the water inlet and the water outlet in the tank body and is used for filtering water flowing in through the water inlet.
According to some embodiments, there is a buffer space between the water inlet and the fibrous filter layer and between the water outlet and the fibrous filter layer.
According to some embodiments, the can body is a metal can body or a non-metal can body.
According to some embodiments, the can has a capsule shape.
According to some embodiments, the fibrous filter layer comprises normal or modified fibers.
According to some embodiments, the voids of the fibrous filter layer become progressively smaller in a direction from the water inlet to the water outlet.
According to some embodiments, the porosity of the fibrous filter layer is between 90% and 97%.
According to some embodiments, the fibers have a fiber diameter of 20 to 50 microns.
According to some embodiments, the surface area ratio of the fibrous filter layer is from 2500m2/m3 to 3500m2/m 3.
According to some embodiments, the fibrous filter layer comprises layered and/or tubular laid fiber balls and/or fiber bundles.
According to some embodiments, the fibrous filter monomers for micro-irrigation are used in parallel or in parallel.
According to some embodiments, according to the utility model discloses a fiber filter for slight irrigation can high-efficiently handle the filtration that contains silt in the aquatic.
Drawings
Other features, objects and advantages of the invention will become more apparent in the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings. Wherein:
fig. 1 shows a schematic view of a fiber filter for micro-irrigation according to an exemplary embodiment of the present invention.
Description of the labeling:
101 tank body
102 water inlet
103 water outlet
104 fiber filter material layer
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
Example embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.
In the micro-irrigation medium filtering technology in the existing agricultural irrigation engineering, taking sand filtering equipment as an example, the relative density of quartz sand medium (rigidity) reaches 2.63g/cm3The weight and the volume of the equipment are large; the relative filter layer has large pores but small porosity (the grain diameter of the sand is 0.5-5mm), about 45 percent, relatively small water passing amount and relatively large head loss; the sludge treatment effect is poor, fine particles are easy to adhere to a filter medium, the cleaning is very difficult, and the backwashing water consumption is large. This has a great effect on normal irrigation and, in general, is a millimeter-scale filter.
According to the technical concept of the utility model, a fiber filter for slight irrigation is provided.
Fig. 1 shows a schematic view of a fiber filter for micro-irrigation according to an exemplary embodiment of the present invention.
As shown in fig. 1, a fiber filter for micro-irrigation according to an exemplary embodiment of the present invention includes a tank 101 and a fiber filter layer 104.
Referring to fig. 1, the tank has a water inlet 102 and a water outlet 103. A fibrous filter layer 104 is arranged in the tank 101 between the water inlet 102 and the water outlet 103 for filtering the water flowing in through the water inlet 102.
According to the technical concept of the utility model, the pressure water (curvilinear motion) that contains the filth is handled through the internal simple physics filtration method of jar, promptly, and the filth of jar internal aquatic is flowed through in the interception of fibre filter material, makes qualified rivers go out the jar body.
According to some embodiments, fiber filters for micro-irrigation with different sizes and specifications are manufactured according to the water quality condition of a water source in a micro-irrigation area and the design requirements of a micro-irrigation system on water quality standards and the like.
The working process of the filter according to the embodiment is that raw water flows through the fiber filter material layer 104 through the water inlet 102, dirt is intercepted, and qualified water flows out from the water outlet 103. When the water head pressure difference between the inlet and the outlet is larger than the specified value, the back washing can be controlled by the equipment device.
According to some embodiments, as shown in fig. 1, there are buffer spaces between the water inlet 102 and the fibrous filter layer 104 and between the water outlet 103 and the fibrous filter layer 104. According to some embodiments, the can has a capsule shape.
According to some embodiments, the can is a metal can or a plastic can.
According to some embodiments, the fibrous filter layer 104 includes normal fibers and/or modified fibers.
According to some embodiments, the fibrous filter layer 104 includes fiber balls and/or fiber bundles.
According to some embodiments, the fibrous filter layer 104 includes layered and/or tubular layups of fiber balls and/or fiber bundles.
The fiber ball adopts a novel ligation mode and a unique space structure, and has a very good decontamination effect. The fiber yarn used by the modified fiber ball has better elasticity and smaller yarn diameter. The fiber ball filter material made of the fiber balls has the advantages of large specific surface area, developed pores, high strength, large dirt carrying capacity, strong adsorption capacity, good filtering effect and the like.
The inventor applies the common fiber or modified fiber filter material to the micro-irrigation filter according to the problems faced by the micro-irrigation. The fiber filter material has the advantages of good elastic effect, no floating up on the water surface, large gap, long working period, small head loss and the like. The filter speed is higher than that of the traditional sand filter material by more than 3.5 times. In the filtering process, the gaps of the filtering layer gradually become smaller along the water flow direction, the ideal filtering material is relatively accorded with the porosity distribution from top to bottom, the sewage interception capacity is large, and the sludge filtering effect is good. The fiber filter material can be regenerated for repeated use, thereby saving time and labor.
According to some embodiments, the fibers may be selected from a wide range of domestic manufacturers to produce acceptable products.
According to some embodiments, the interstices of the fibrous filter layer are tapered in a direction from the water inlet to the water outlet.
According to some embodiments, the porosity of the fibrous filter layer is between 90% and 97%.
According to some embodiments, the fiber diameter of the fiber filter material layer is 20-50 microns.
According to some embodiments, the surface area ratio of the fibrous filter layer is 2500m2/m3 to 3500m2/m 3.
According to the utility model discloses a slight irrigation filter has obtained very good effect. For example, compared to a sand medium (surface cleaning 1 ^ 2, roughness 25 left or right), the fiber surface cleaning 6 or more, with a roughness of only about 0.32. Therefore, by using the fiber filtering medium, fine particles are not easy to adhere, the cleaning is very convenient, and the water consumption for backwashing is relatively small and accounts for 1-3%. In addition, compared with the sand and stone which belong to millimeter-grade filter materials, the fiber balls belong to micron-grade filter materials, and the filter precision and the efficiency are high.
Moreover, the equipment manufacturing has high efficiency for the same water amount, occupies only 1/3-1/8 of the traditional filter, and has light weight.
The above are only some examples of the present invention, and are not intended to limit the present invention in any way. The exemplary embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible to those skilled in the art in light of the above teachings. Accordingly, the scope of the present invention is not intended to be limited to the foregoing embodiments, but is intended to be defined by the claims and their equivalents.
The present invention is not limited in this regard to any particular configuration (filter unit or parallel, fiber laid in layers, tubes, etc.). The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (1)
1. A fibrous filter for micro-irrigation, comprising:
a tank having a water inlet and a water outlet;
the fiber filter material layer is arranged between the water inlet and the water outlet in the tank body and is used for filtering water flowing in through the water inlet;
buffer spaces are arranged between the water inlet and the fiber filter material layer and between the water outlet and the fiber filter material layer;
the tank body is a metal tank body or a non-metal tank body;
the fiber filter monomers for micro-irrigation are used or used in parallel;
the fiber filter material layer comprises common fibers and/or modified fibers;
the gaps of the fiber filter material layer are gradually reduced along the direction from the water inlet to the water outlet;
the porosity of the fiber filter material layer is 90% to 97%;
the fiber diameter of the fiber filter material layer is 20-50 microns;
the surface area ratio of the fiber filter material layer is 2500m2/m3To 3500m2/m3；
The fiber filter layer comprises fiber balls and/or fiber bundles which are laid in a layered and/or tubular manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821932188.3U CN209885313U (en) | 2018-11-22 | 2018-11-22 | Fiber filter for micro-irrigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821932188.3U CN209885313U (en) | 2018-11-22 | 2018-11-22 | Fiber filter for micro-irrigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209885313U true CN209885313U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821932188.3U Active CN209885313U (en) | 2018-11-22 | 2018-11-22 | Fiber filter for micro-irrigation |
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| Country | Link |
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| CN (1) | CN209885313U (en) |
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- 2018-11-22 CN CN201821932188.3U patent/CN209885313U/en active Active
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