CN113617097B - Filter equipment for irrigation - Google Patents
Filter equipment for irrigation Download PDFInfo
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- CN113617097B CN113617097B CN202111055929.0A CN202111055929A CN113617097B CN 113617097 B CN113617097 B CN 113617097B CN 202111055929 A CN202111055929 A CN 202111055929A CN 113617097 B CN113617097 B CN 113617097B
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- backflushing
- water inlet
- water outlet
- filtering
- filter element
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- 238000003973 irrigation Methods 0.000 title claims abstract description 33
- 230000002262 irrigation Effects 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 238000001914 filtration Methods 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 9
- 239000013049 sediment Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 description 7
- 238000011001 backwashing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/605—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by level measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
- B01D29/688—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with backwash arms or shoes acting on the cake side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/86—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
- B01D29/865—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers by vibration of the liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a filtering device for irrigation, which belongs to the technical field of irrigation and comprises a filter body, wherein the filter body consists of a cylinder shell, a flexible filter element and an elastic element, a filtering water outlet and a backflushing water inlet are respectively arranged at two ends of the cylinder shell, a filtering water inlet and a backflushing water outlet are respectively arranged on two side walls of the cylinder shell, the flexible filter element consists of a flexible filter screen cylinder and hollow framework discs fixedly arranged at two ends of the flexible filter screen cylinder, the flexible filter element is embedded in an inner cavity of the cylinder shell, the elastic element is sleeved outside the flexible filter screen cylinder, the hollow framework discs at two ends are supported and kept in close fit with inner walls at two ends of the cylinder shell by utilizing elastic pressure of two ends of the elastic element, the device can be used for back flushing and cleaning the flexible filter element after being introduced with backflushing water flow, and impurities after being flushed are discharged out of the filtering device along with backflushing water, so that the problem of sediment blockage or sediment blockage caused after temporary dredging can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of water conservancy irrigation, in particular to a filtering device for irrigation.
Background
The technical measure for supplementing the water needed by the crops. In order to ensure the normal growth of crops and obtain high and stable yield, the crops must be supplied with sufficient moisture. Under natural conditions, the water requirement of crops cannot be met due to insufficient precipitation or uneven distribution. Therefore, irrigation must be done manually to compensate for the lack of natural rainfall. Irrigating, namely watering the land with water. The irrigation principle is that the irrigation quantity, the irrigation times and the irrigation time are determined according to the water requirement characteristics, the growth stage, the climate and the soil conditions of the medicinal plants, and the medicinal plants are irrigated timely, appropriately and reasonably. The main types of the irrigation include irrigation before sowing, seedling-accelerating irrigation, growth period irrigation, winter irrigation and the like.
When irrigating its crops of large tracts of land in arid season, it is mainly directly to extract river water from near river course and irrigate, and water in the river course can be mingled with a lot of silt and debris when being extracted, enters into the jam that causes irrigation machine and water jet very easily behind the irrigation machine.
The filter device for irrigation commonly used at present is "a water inlet filter of an irrigation machine" disclosed in the invention with the patent application number of CN201822103603.0, wherein a filter screen structure is arranged in the filter device, and after a period of use, the filter needs to be manually cleaned or replaced periodically due to retention and sedimentation of impurities, in order to further optimize the filter, "an agricultural irrigation backwashing filter device" disclosed in the patent application number of CN202021813209.7, wherein a backwashing water pipe is arranged below a filter screen, impurities deposited on the filter screen are utilized by utilizing the backwashing effect of water flow, but the impurities are still suspended in the filter after being separated from the filter screen under the backwashing effect, and the filter screen is still settled and blocked after the backwashing effect is finished.
Based on the above, the invention designs a filtering device for irrigation to solve the problems.
Disclosure of Invention
The invention aims to provide a filtering device for irrigation, which aims to solve the technical problems.
In order to realize the purpose, the invention provides the following technical scheme: the utility model provides an irrigate and use filter equipment, includes filter body, filter body comprises drum shell, flexible filter core and elastic component, the both ends of drum shell are provided with respectively filters delivery port and recoil water inlet, the both sides wall of drum shell is provided with respectively filters water inlet and recoil delivery port, flexible filter core by flexible filter screen section of thick bamboo with set firmly in the hollow skeleton dish at flexible filter screen section of thick bamboo both ends constitutes, flexible filter core inlays to be located drum shell inner chamber, the elastic component cover is located flexible filter screen section of thick bamboo outside, both ends hollow skeleton dish utilizes the both ends suppress support of elastic component keep with the airtight laminating of the both ends inner wall of drum shell.
Preferably, the filtering water outlet, the backflushing water inlet, the filtering water inlet and the backflushing water outlet are sequentially communicated with a filtering water outlet pipe, a backflushing water inlet pipe, a filtering water inlet pipe and a backflushing water outlet pipe, and a filtering water outlet solenoid valve, a backflushing water inlet solenoid valve, a filtering water inlet solenoid valve and a backflushing water outlet solenoid valve are respectively arranged on the filtering water outlet pipe, the backflushing water inlet pipe, the filtering water inlet pipe and the backflushing water outlet pipe; the device also comprises a backflushing water purification tank connected with the backflushing water inlet pipe, and a backflushing pump is arranged at one end of the backflushing water inlet pipe and one end of the backflushing water purification tank.
Preferably, still including install in the level sensor at drum shell top and with level sensor electric connection the controller, filter water outlet solenoid valve, recoil water inlet solenoid valve, filter water inlet solenoid valve, recoil water outlet solenoid valve and recoil pump respectively with controller electric connection.
Preferably, a filter element mounting opening is formed in the side wall of the top of the cylindrical shell, and a mounting opening sealing cover plate is arranged on the outer side of the filter element mounting opening.
Preferably, the elastic component is compression spring, and both ends the hollow framework dish is provided with a plurality of spring fixing buckles towards one side annular array, the both ends of elastic component are passed spring fixing buckle and both ends hollow framework dish fixed connection.
Preferably, two opposite pull rings are arranged on two sides of the opposite surface of the hollow framework plate at two ends.
Preferably, the flexible filter screen cylinder is composed of an inner steel wire mesh layer, a middle gauze mesh layer and an outer steel wire mesh layer which are concentrically sleeved inside and outside.
Preferably, the end face inner wall of the cylinder shell is provided with a filter element limiting convex edge which is embedded in the hollow framework disc inner hole, two annular seal grooves are sequentially arranged on the outer side of the filter element limiting convex edge, and an annular seal ring is arranged in each annular seal groove.
Preferably, the bottom of the sealed apron of installing port is provided with be used for inlay in the spacing protruding edge of the intraoral apron of filter core installing, the frame seal groove has been seted up to the outside circumference on the spacing protruding edge of apron, be provided with the frame sealing washer in the frame seal groove.
Compared with the prior art, the invention has the beneficial effects that:
the filtering device for irrigation is respectively provided with the filtering water outlet, the backflushing water inlet, the filtering water inlet and the backflushing water outlet, when the flexible filter element is blocked, the filtering water outlet and the filtering water inlet can be closed, the backflushing water inlet and the backflushing water outlet are opened, the flexible filter element can be washed and cleaned in a back flushing mode after backflushing water flow is introduced, and impurities after the backflushing water flow is discharged out of the filtering device along with the backflushing water, so that the problem that the impurities are deposited and blocked or are temporarily dredged to cause deposition and blocking again can be effectively solved.
The irrigation filtering device is provided with a backflushing water purification tank, a backflushing pump, a liquid level sensor, a controller and the like in a matched mode, under the working mode of constant-current water supply, the liquid level sensor can be used for detecting the rising of the water level in the cylinder shell to form a detection signal and transmitting the detection signal to the controller, the controller judges that the flexible filter element is blocked, then the backflushing pump is controlled to be started, water in the backflushing water purification tank is pumped into the filter body to backflush and clean the flexible filter element, and manual intervention and matching work are not needed.
The flexible filter screen cylinder of the flexible filter element of the irrigation filter device is of a flexible material structure, hollow framework discs at two ends of the flexible filter screen cylinder are supported by utilizing the elastic parts at two ends to be pressed and kept to be tightly attached to the inner walls at two ends of the cylinder shell, the flexible filter screen cylinder can be reduced in size axially through the flexible filter element during assembling and disassembling so as to be convenient for installation position adjustment and pass through a smaller installation opening, and the flexible filter screen cylinder of the flexible material structure is compounded by adopting an inner steel wire mesh layer and an outer steel wire mesh layer and a middle steel wire mesh layer, so that the problem of aging and damage is solved by using plastic of a traditional hard filter screen framework.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall mounting structure of the present invention;
FIG. 2 is a schematic diagram of a rear top view of a sealing cover plate of a hidden mounting opening of a filter body according to the present invention;
FIG. 3 is a schematic illustration of an exploded view of the filter body of the present invention;
FIG. 4 is a schematic view of a flexible screen cartridge according to the present invention;
fig. 5 is a schematic structural diagram of an electric control principle of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
100-a filter body;
110-a cylindrical shell, 111-a filter water outlet, 112-a backflushing water inlet, 113-a filter water inlet, 114-a backflushing water outlet, 115-a filter element limiting convex edge and 116-an annular sealing groove;
120-flexible filter element, 121-flexible filter screen cylinder, 122-hollow framework disc, 123-spring fixing buckle and 124-opposite pull ring;
1211-inner steel wire mesh layer, 1212-middle gauze layer, 1213-outer steel wire mesh layer;
130-filter element mounting opening, 140-mounting opening sealing cover plate, 141-cover plate limiting convex edge and 142-frame-shaped sealing groove;
200-an elastic member;
310-a filtering water outlet pipe, 320-a backflushing water inlet pipe, 330-a filtering water inlet pipe and 340-a backflushing water outlet pipe;
410-filtering water outlet electromagnetic valve, 420-backflushing water inlet electromagnetic valve, 430-filtering water inlet electromagnetic valve, 440-backflushing water outlet electromagnetic valve;
500-backflushing water purification tank, 600-backflushing pump, 700-liquid level sensor and 800-controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 2-4, the present invention provides a technical solution: a filter device for irrigation comprises a filter body 100, wherein the filter body 100 is composed of a cylindrical shell 110, a flexible filter element 120 and an elastic element 200;
a filtering water outlet 111 and a backflushing water inlet 112 are respectively arranged at two ends of the cylindrical shell 110, a filtering water inlet 113 and a backflushing water outlet 114 are respectively arranged on two side walls of the cylindrical shell 110, when the filtering works normally, the filtering water outlet 111 and the filtering water inlet 113 are opened, the backflushing water inlet 112 and the backflushing water outlet 114 are closed, sewage enters the filtering water inlet 113, and is discharged from the filtering water outlet 111 after being filtered by the flexible filter element 120; when the flexible filter element 120 is blocked, the back flushing water inlet 112 and the back flushing water outlet 114 can be opened by closing the filter water outlet 111 and the filter water inlet 113, back flushing cleaning can be carried out on the flexible filter element 120 after back flushing water flows into the back flushing water inlet 112, and impurities after flushing are discharged out of the filter device along with back flushing water, so that the problem of sediment blockage caused by the impurities after sediment blockage or temporary dredging can be effectively prevented;
the inner wall of the end face of the cylindrical shell 110 is provided with a filter element limiting convex edge 115 which is embedded in an inner hole of the hollow framework disc 122, two annular sealing grooves 116 are sequentially arranged on the outer side of the filter element limiting convex edge 115, and an annular sealing ring is arranged in each annular sealing groove 116 to play a role in sealing the inner cavity and the outer cavity of the flexible filter element 120 and prevent water bodies before and after filtration from being leaked and communicated;
a filter element mounting opening 130 is formed in the side wall of the top of the cylindrical shell 110 and is used as a loading and unloading channel of the flexible filter element 120, a mounting opening sealing cover plate 140 is arranged on the outer side of the filter element mounting opening 130, and the mounting opening sealing cover plate 140 fixes the outer side of the filter element mounting opening 130 through screws and is used for sealing the cylindrical shell 110; further, a cover plate limiting convex edge 141 which is used for being embedded in the filter element mounting opening 130 is arranged at the bottom of the mounting opening sealing cover plate 140, a frame-shaped sealing groove 142 is circumferentially arranged on the outer side of the cover plate limiting convex edge 141, and a frame-shaped sealing ring is arranged in the frame-shaped sealing groove 142 and plays a role in sealing the filter element mounting opening 130;
the flexible filter element 120 is embedded in the inner cavity of the cylindrical shell 110, the elastic element 200 is sleeved outside the flexible filter element 121, and the hollow skeleton discs 122 at two ends are supported by utilizing the elastic pressure of two ends of the elastic element 200 to keep close fit with the inner walls at two ends of the cylindrical shell 110;
the elastic element 200 is a compression spring, a plurality of spring fixing buckles 123 are annularly arranged on one opposite side of the hollow framework discs 122 at the two ends, the two ends of the elastic element 200 penetrate through the spring fixing buckles 123 to be fixedly connected with the hollow framework discs 122 at the two ends, the hollow framework discs 122 at the two ends of the flexible filter screen cylinder 121 are supported and kept in close fit with the inner walls at the two ends of the cylinder shell 110 by utilizing the elastic pressure of the two ends of the elastic element 200, and the size can be reduced axially by the flexible filter element 120 during assembly and disassembly so as to facilitate the adjustment of the installation position and pass through a smaller installation opening; under the action of the elastic element 200, the flexible filter screen cylinder 121 is pulled and expanded by the hollow framework discs 122 at the two ends, the expanded maximum distance of the hollow framework discs 122 at the two ends is slightly larger than the axial length of the inner cavity of the cylindrical shell 110, so that the flexible filter screen cylinder 121 cannot be tightened after being installed in the inner cavity of the cylindrical shell 110, and the flexible filter screen cylinder 121 with a flexible material structure can generate fluctuation of different degrees under the impact of water flow in the processes of filtering and backwashing, thereby having the functions of preventing attachment of sundries and promoting falling of the sundries;
by arranging the pull ring 124, in the assembling and disassembling process, the flexible filter element 120 can be compressed by respectively buckling the opposite pull rings 124 at the two ends by a thumb and a forefinger and oppositely pinching and pulling, so that the effect of facilitating the assembling and disassembling operation of the flexible filter element 120 is achieved;
the flexible filter screen cylinder 121 is composed of an inner steel wire mesh layer 1211, a middle gauze layer 1212 and an outer steel wire mesh layer 1213 which are concentrically sleeved inside and outside, the middle gauze layer 1212 has a main filtering effect, and the inner steel wire mesh layer 1211 and the outer steel wire mesh layer 1213 mainly support the middle gauze layer 1212 and improve the overall toughness and strength of the flexible filter screen cylinder 121; the flexible filter screen cylinder 121 with the flexible material structure is compounded with the inner and outer steel wire mesh layers and the middle screen mesh layer, and plastic using a traditional hard filter screen framework is avoided, so that the problem of aging and damage is avoided.
Example 2:
with reference to fig. 1-5, in order to improve the intellectualization and convenience of the practical application of the device, on the basis of embodiment 1, a filtering water outlet pipe 310, a backflushing water inlet pipe 320, a filtering water inlet pipe 330 and a backflushing water outlet pipe 340 are sequentially communicated with a filtering water outlet port 111, a backflushing water inlet port 112, a filtering water inlet port 113 and a backflushing water outlet port 114 in the device, and a filtering water outlet solenoid valve 410, a backflushing water inlet solenoid valve 420, a filtering water inlet solenoid valve 430 and a backflushing water outlet solenoid valve 440 are respectively arranged on the filtering water outlet pipe 310, the backflushing water inlet pipe 320, the filtering water inlet pipe 330 and the backflushing water outlet pipe 340;
the device also comprises a backflushing water purification tank 500 connected with the backflushing water inlet pipe 320, a backflushing pump 600 is arranged at one end of the backflushing water inlet pipe 132 and one end of the backflushing water purification tank 500, a liquid level sensor 700 is arranged at the top of the cylindrical shell 110, and a controller 800 is electrically connected with the liquid level sensor 700, and the filtering water inlet electromagnetic valve 410, the backflushing water inlet electromagnetic valve 420, the filtering water inlet electromagnetic valve 430, the backflushing water outlet electromagnetic valve 440 and the backflushing pump 600 are respectively electrically connected with the controller 800;
in this embodiment 2, in the working mode of constant-flow water supply, the liquid level sensor 700 may be used to detect the water level in the cylindrical housing 110 rising to form a detection signal, and transmit the detection signal to the controller 800, and the controller 800 determines that the flexible filter element 120 is blocked, and the controller 800 further controls the filtering water outlet electromagnetic valve 410 and the filtering water inlet electromagnetic valve 430 to close, that is, the filtering water outlet 111 and the filtering water inlet 113 are closed, the backflushing water inlet electromagnetic valve 420 and the backflushing water outlet electromagnetic valve 440 are opened, that is, the backflushing water inlet 112 and the backflushing water outlet 114 are opened, and at the same time, the backflushing pump 600 is opened, so that the water in the backflushing water purifying tank 500 is pumped into the filter body 100 through the backflushing water inlet pipe 320 to perform backflushing cleaning on the flexible filter element 120, and the flushed impurities are discharged out of the filter device along with the backflushing water, without manual intervention and cooperation.
In the description of the invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "two ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the invention.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the invention is understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A filtering device for irrigation, characterized in that: the filter comprises a filter body (100), wherein the filter body (100) comprises a cylinder shell (110), a flexible filter element (120) and an elastic element (200), a filtering water outlet (111) and a backflushing water inlet (112) are respectively arranged at two ends of the cylinder shell (110), a filtering water inlet (113) and a backflushing water outlet (114) are respectively arranged on two side walls of the cylinder shell (110), the flexible filter element (120) comprises a flexible filter screen cylinder (121) and hollow framework discs (122) fixedly arranged at two ends of the flexible filter screen cylinder (121), the flexible filter element (120) is embedded in an inner cavity of the cylinder shell (110), the elastic element (200) is sleeved on the outer side of the flexible filter screen cylinder (121), the hollow framework discs (122) at two ends are supported and kept in airtight fit with inner walls at two ends of the cylinder shell (110) by utilizing elastic pressing support at two ends of the elastic element (200), and the hollow framework discs (122) at two ends are propped open for the maximum distance which is greater than the axial length of the inner cavity of the cylinder shell (110);
the filtering water outlet (111), the backflushing water inlet (112), the filtering water inlet (113) and the backflushing water outlet (114) are sequentially communicated with a filtering water outlet pipe (310), a backflushing water inlet pipe (320), a filtering water inlet pipe (330) and a backflushing water outlet pipe (340), and a filtering water outlet electromagnetic valve (410), a backflushing water inlet electromagnetic valve (420), a filtering water inlet electromagnetic valve (430) and a backflushing water outlet electromagnetic valve (440) are respectively arranged on the filtering water outlet pipe (310), the backflushing water inlet pipe (320), the filtering water inlet pipe (330) and the backflushing water outlet pipe (340); the device also comprises a backflushing water purifying tank (500) connected with the backflushing water inlet pipe (320), and a backflushing pump (600) is arranged at one end of the backflushing water inlet pipe (320) and one end of the backflushing water purifying tank (500);
the device is characterized by further comprising a liquid level sensor (700) mounted at the top of the cylinder shell (110) and a controller (800) electrically connected with the liquid level sensor (700), wherein the filtered water outlet electromagnetic valve (410), the backflushing water inlet electromagnetic valve (420), the filtered water inlet electromagnetic valve (430), the backflushing water outlet electromagnetic valve (440) and the backflushing pump (600) are respectively and electrically connected with the controller (800);
the flexible filter screen cylinder (121) is composed of an inner steel wire mesh layer (1211), a middle gauze mesh layer (1212) and an outer steel wire mesh layer (1213), wherein the inner steel wire mesh layer, the middle gauze mesh layer and the outer steel wire mesh layer are concentrically sleeved with one another.
2. An irrigation filter arrangement according to claim 1 wherein: the filter element mounting opening (130) is formed in the side wall of the top of the cylindrical shell (110), and a mounting opening sealing cover plate (140) is arranged on the outer side of the filter element mounting opening (130).
3. An irrigation filter arrangement according to claim 1 wherein: elastic component (200) are compression spring, and both ends hollow skeleton dish (122) one side in opposite directions hoop array is provided with a plurality of spring fixation and detains (123), the both ends of elastic component (200) are passed spring fixation detains (123) and both ends hollow skeleton dish (122) fixed connection.
4. An irrigation filter arrangement according to claim 1 wherein: opposite pull rings (124) are arranged on two sides of the opposite surface of the hollow framework disc (122) at two ends.
5. An irrigation filter arrangement according to claim 1 wherein: the end face inner wall of the cylinder shell (110) is provided with a filter element limiting convex edge (115) which is embedded in the inner hole of the hollow framework disc (122), two annular sealing grooves (116) are sequentially arranged on the outer side of the filter element limiting convex edge (115), and annular sealing rings are arranged in the annular sealing grooves (116).
6. A filtration device for irrigation as claimed in claim 2, wherein: the bottom of the mounting opening sealing cover plate (140) is provided with a cover plate limiting convex edge (141) embedded in the filter element mounting opening (130), a frame-shaped sealing groove (142) is formed in the circumferential direction of the outer side of the cover plate limiting convex edge (141), and a frame-shaped sealing ring is arranged in the frame-shaped sealing groove (142).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111055929.0A CN113617097B (en) | 2021-09-09 | 2021-09-09 | Filter equipment for irrigation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111055929.0A CN113617097B (en) | 2021-09-09 | 2021-09-09 | Filter equipment for irrigation |
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| CN113617097A CN113617097A (en) | 2021-11-09 |
| CN113617097B true CN113617097B (en) | 2022-11-22 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR962266A (en) * | 1943-03-19 | 1950-06-07 | ||
| IL76570A (en) * | 1985-04-15 | 1990-09-17 | Ar Kal Plastics Products Beit | Liquid filtering devices |
| DE102009049712A1 (en) * | 2009-10-17 | 2011-04-21 | Hydac Process Technology Gmbh | filter means |
| CN101816848B (en) * | 2010-05-27 | 2012-07-18 | 宁波长壁流体动力科技有限公司 | Filter core of ultrahigh-pressure back-flushing filter |
| CN106422463B (en) * | 2016-10-26 | 2018-08-28 | 海宁市倍世环保科技有限公司 | The prefilter device assembly that can be backwashed |
| CN211799169U (en) * | 2019-07-11 | 2020-10-30 | 浙江伟星净水科技有限公司 | Spiral water inlet pre-filter with backwashing function |
| CN210699062U (en) * | 2019-09-25 | 2020-06-09 | 金孚环保科技张家口有限公司 | Back flush lamination filter |
| CN111214880A (en) * | 2019-10-15 | 2020-06-02 | 海宁美康环保科技有限公司 | Automatic back-flushing filter |
| CN213433240U (en) * | 2020-04-24 | 2021-06-15 | 张银汝 | Removable open-air cartridge filter of filter core |
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