CN113209692B - Automatic back-washing pre-filtering device for geothermal tail water recharging - Google Patents
Automatic back-washing pre-filtering device for geothermal tail water recharging Download PDFInfo
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- CN113209692B CN113209692B CN202110562210.XA CN202110562210A CN113209692B CN 113209692 B CN113209692 B CN 113209692B CN 202110562210 A CN202110562210 A CN 202110562210A CN 113209692 B CN113209692 B CN 113209692B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000011001 backwashing Methods 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 title claims description 30
- 238000005406 washing Methods 0.000 claims abstract description 80
- 238000011045 prefiltration Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 29
- 238000005192 partition Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims 1
- 239000007790 solid phase Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 6
- 239000013618 particulate matter Substances 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000011010 flushing procedure Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- 229910001385 heavy metal Inorganic materials 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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Images
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
- B01D29/50—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
-
- 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
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
-
- 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
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
- B01D29/6423—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a translational movement with respect to the filtering element
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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
- B01D29/62—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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention relates to the technical field of geothermal recovery, and discloses an automatic backwashing prefilter for geothermal tail water recharging. The device can get rid of the solid phase particulate matter in the geothermol power tail water at the in-process of back flush, can reach and prevent that solid phase particulate matter from blockking up filter equipment and leading to the operation that can not be normal, improves the advantage of the washing efficiency of tail water.
Description
Technical Field
The invention relates to the technical field of geothermal recovery, in particular to an automatic backwashing prefilter device for geothermal tail water recharge.
Background
The geothermal energy is a renewable energy source which is green, low-carbon and recyclable, has the characteristics of large storage capacity, wide distribution, cleanness, environmental protection, stability, reliability and the like, and is a practical, feasible and competitive clean energy source. In 2017, the national development and improvement commission, the national energy agency and the national soil resource agency jointly release geothermal energy to develop and utilize thirteen-five plans, and the geothermal energy as a clean new energy source plays an increasingly important role in adjusting the energy structure of China. Geothermal energy is greatly pumped from the underground to the ground in the process of development and utilization, so that a large amount of geothermal tail water is generated, and geothermal resources are gradually depleted. In addition, the mineralization degree of geothermal tail water is high, the temperature is high, the heavy metal content of tail water in partial regions exceeds the standard, and environmental pollution can be caused if proper treatment is not carried out. Geothermal tail water recharge is a good choice for solving the problems of geothermal resource attenuation and tail water pollution, and the geothermal tail water recharge technology has long been a key research subject in China and the world geothermy.
The geothermal recharge tail water needs to be treated, wherein one of the important treatment steps is pre-filtration. Solid-phase particles with specific particle sizes of sand grains, iron rust and the like in the tail water are reduced by pre-filtering in combination with the condition of the geothermal tail water quality and the requirement of the recharge tail water quality, so that the problem that the stratum is blocked by the solid-phase particles in the recharge process to cause recharge difficulty is prevented.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an automatic back-washing pre-filtering device for recharging geothermal tail water, which can remove solid-phase particles in the geothermal tail water in the back-washing process, and can achieve the advantages of preventing the solid-phase particles from blocking the filtering device to cause abnormal operation and improving the washing efficiency of the tail water.
Technical scheme
In order to realize the advantages, the invention provides the following technical scheme: the automatic back-washing pre-filtering device comprises a washing tank, wherein a back-washing mechanism is contained in the washing tank, a water inlet pipe is arranged in the back-washing mechanism, a washing cover is connected to the outer portion of the water inlet pipe, a washing nozzle is connected to the inner portion of the washing cover, and a transfer water pipe is connected to the lower end of the washing cover.
Preferably, the inside of washing jar still includes coarse strainer washing mechanism, coarse strainer washing mechanism's inside is provided with the screw rod, the swivel nut has been cup jointed to the outside of screw rod, the outside swing joint of swivel nut has the tripod, the outside swing joint of tripod has the connecting plate, the outside swing joint of connecting plate has the arc cleaning brush.
Preferably, the inside of washing tank still includes thin filter screen washing mechanism, the inside swing joint of thin filter screen washing mechanism has the telescopic link, the lower extreme swing joint of telescopic link has the bracing piece, the lower extreme of bracing piece is connected with the brush board, the lantern ring has been cup jointed to the outside of bracing piece, the outside swing joint of the lantern ring has the movable rod, the outside swing joint of movable rod has the runner.
Preferably, the upper end swing joint that washes the jar has the inlet valve, the inside swing joint that washes the jar has coarse filtration net, coarse filtration net's lower extreme swing joint has the baffle, the lower extreme swing joint of baffle has the filter residue to arrange the material pipe, the lifter has been cup jointed to the inside that the material pipe was arranged to the filter residue, the upper end swing joint of lifter has the baffle.
Preferably, the outside swing joint of lifter has the hinge bar, the outside swing joint of hinge bar has the carousel, the lower extreme swing joint that the pipe was arranged to the filter residue has the fall way, the upper end swing joint of fall way has the latch, the outside meshing of latch is connected with the gear, the bottom swing joint of washing tank has fine filter screen, the lower extreme swing joint of fine filter screen has the delivery port.
Preferably, the rotating wheel, the rotating disc and the screw rod are movably connected with a motor.
Preferably, the upper end of the telescopic rod is movably connected with a threaded sleeve, and a screw rod is sleeved inside the threaded sleeve.
Preferably, the bottom of the elevator tube is positioned at the same horizontal line as the fine filter screen.
Advantageous effects
Compared with the prior art, the invention provides an automatic backwashing prefilter device for geothermal tail water recharging, which has the following beneficial effects:
1. this geothermol power tail water is irritated back with automatic back flush prefilter unit arrives through the inlet tube through outside rivers and washes the inside washing terminals of cover, and washing terminals is provided with two sets of processes and transports the water pipe and be connected moreover, and washing terminals's orientation will block the solid phase particulate matter that the coarse filtration net is inside to wash out from the coarse filtration net to reach the effect that can be abundant clear away the solid phase particulate matter of coarse filtration net inside.
2. This geothermol power tail water is irritated back with automatic back flush prefilter unit, start rotatoryly under the drive of motor in the top through the screw rod, thereby make the swivel nut drive outside tripod downstream, thereby make the swivel nut drive arc cleaning brush and paste coarse filtration net downstream, thereby clean the residue on coarse filtration net surface, the inside carousel of filter residue discharge pipe makes under the drive of outside motor drive the hinge bar and begins to rotate, drive outside lifter upward movement, and be connected with the baffle in the upper end of filter residue discharge pipe, the lower extreme of baffle links to each other with the lifter, when so the baffle rises, the mouth of pipe that makes the filter residue discharge pipe spills, thereby make the residue that cleans out from the inside and outside of coarse filtration net discharge, thereby reach the effect of high-efficient thick filter screen inside of driving.
3. This geothermol power tail-water is irritated with automatic back flush prefilter unit again, the below through the delivery port is gone up water, wash the inside of jar of washing with the filter residue is reverse to wash, the screw rod drives the swivel nut simultaneously, make the telescopic link move to the outside, thereby make the telescopic link downstream make the bracing piece and the brush board of below press close to with thin filter screen under the effect of gravity, the movable rod makes the brush board begin to vibrate under the drive of outside runner, thereby accelerate getting rid of thin filter screen surface residue, the residue is along thin filter screen downstream to fall way department, the fall way makes rather than the latch upward movement of meshing under the gear drive of outside, thereby make the fall way upwards lift up make residue and waste water from arranging material pipe department and discharge, thereby reach and clear away the filter residue inside the thin filter screen, improve filtration efficiency's effect.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a backwash mechanism of the present invention;
FIG. 3 is a schematic view of the connecting structure of the lifter of the present invention;
FIG. 4 is a schematic view of the structure of part A of FIG. 1 according to the present invention;
FIG. 5 is a schematic view of a coarse strainer washing mechanism according to the present invention;
FIG. 6 is a schematic view of the structure of part B of FIG. 1 according to the present invention.
In the figure: 1. washing the tank; 2. a backwashing mechanism; 21. a water inlet pipe; 22. washing the cover; 23. washing the spray head; 24. a transfer water pipe; 3. a coarse strainer washing mechanism; 31. a screw; 32. a threaded sleeve; 33. a tripod; 34. a connecting plate; 35. an arc-shaped cleaning brush; 4. a fine filter screen washing mechanism; 41. a telescopic rod; 42. a support bar; 43. brushing a plate; 44. a collar; 45. a movable rod; 46. a rotating wheel; 5. a water inlet valve; 6. a coarse filter screen; 7. a partition plate; 8. a filter residue discharge pipe; 9. a lifting rod; 10. a baffle plate; 11. a hinged lever; 12. a turntable; 13. a lifting pipe; 14. clamping teeth; 15. a gear; 16. a fine filter screen; 17. and (4) a water outlet.
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.
The first embodiment is as follows:
referring to fig. 1-2, an automatic backwashing prefilter for geothermal tail water recharging includes a washing tank 1, the washing tank 1 includes a backwashing mechanism 2, a water inlet pipe 21 is disposed inside the backwashing mechanism 2, a washing cover 22 is connected to the outside of the water inlet pipe 21, a washing nozzle 23 is connected to the inside of the washing cover 22, a transfer water pipe 24 is connected to the lower end of the washing cover 22, an upper end of the washing tank 1 is movably connected to a water inlet valve 5, a coarse filter screen 6 is movably connected to the inside of the washing tank 1, a partition 7 is movably connected to the lower end of the coarse filter screen 6, a filter residue discharge pipe 8 is movably connected to the lower end of the partition 7, a lifting rod 9 is sleeved inside the filter residue discharge pipe 8, the upper end of the lifting rod 9 is movably connected to the upper end of the lifting rod 9, a baffle 10 is movably connected to the outside of the lifting rod 9, a hinged rod 11 is movably connected to the outside of the hinged rod 11, a rotating disc 12 is movably connected to the lower end of the filter residue discharge pipe 8, a lifting pipe 13 is movably connected to the upper end of the lifting pipe 13, gears 15 are movably connected to the outer meshing of the lifting pipe 14, gears 15 are connected to the bottom of the washing tank 1, a fine filter screen 16 is connected to the rotating disc 17, a rotating disc 46 is movably connected to the rotating disc 32, and a screw rod 31 of a screw rod 31, and a screw rod 32 of a screw rod 32 which are connected to the same level with a screw rod 31, and a screw rod 32 which are connected to the same level with a screw rod 32.
Outside rivers reach the washing terminals 23 that washes the cover 22 inside through inlet tube 21, and washing terminals 23 is provided with two sets of processes and transports water pipe 24 in addition and is connected, and washing terminals 23's orientation will block the solid phase particulate matter of 6 inside of coarse filtration net from coarse filtration net 6 towards the inside of coarse filtration net 6 and wash out to reach the effect that can be abundant clear away the solid phase particulate matter of 6 inside of coarse filtration net.
Example two:
referring to fig. 1 and 5, an automatic backwashing prefilter device for recharging geothermal tail water comprises a washing tank 1, the washing tank 1 further comprises a coarse strainer washing mechanism 3, a screw 31 is arranged inside the coarse strainer washing mechanism 3, a screw sleeve 32 is sleeved outside the screw 31, a triangular support 33 is movably connected outside the screw sleeve 32, a connecting plate 34 is movably connected outside the triangular support 33, an arc-shaped cleaning brush 35 is movably connected outside the connecting plate 34, an upper end of the washing tank 1 is movably connected with a water inlet valve 5, a coarse filter screen 6 is movably connected inside the washing tank 1, a partition 7 is movably connected at a lower end of the coarse filter screen 6, a discharge pipe 8 is movably connected at a lower end of the partition 7, a lifting rod 9 is sleeved inside the discharge pipe 8, a baffle 10 is movably connected at an upper end of the lifting rod 9, a movable hinged rod 11 is movably connected outside the lifting rod 9, a rotary table 12 is movably connected outside the movable hinged rod 11, a lower end of the discharge pipe 8 is movably connected with a lifting pipe 13, a latch 14 is movably connected at an external meshing gear 15, a movable hinged position of the washing tank 1 is movably connected at a bottom of the rotary table 12, a fine filter screen 16 is connected at a position of the screw sleeve 32, and a position of the screw sleeve 32 of the screw sleeve 31 is connected at a position of a fine filter screen 16, and a fine filter screen 16, the same level of a fine filter screen 16, and a fine filter screen 32 is connected at a position of a motor 32.
Example three:
referring to fig. 1 and 4, an automatic back-flushing pre-filtering device for recharging geothermal tail water comprises a flushing tank 1, wherein the flushing tank 1 further comprises a fine filter screen washing mechanism 4, the fine filter screen washing mechanism 4 is movably connected with an expansion link 41, the lower end of the expansion link 41 is movably connected with a support rod 42, the lower end of the support rod 42 is connected with a brush plate 43, the outer part of the support rod 42 is sleeved with a lantern ring 44, the outer part of the lantern ring 44 is movably connected with a movable rod 45, the outer part of the movable rod 45 is movably connected with a rotating wheel 46, the upper end of the flushing tank 1 is movably connected with a water inlet valve 5, the inner part of the flushing tank 1 is movably connected with a coarse filter screen 6, the lower end of the coarse filter screen 6 is movably connected with a partition plate 7, and the lower end of the partition plate 7 is movably connected with a filter residue discharge pipe 8, lifter 9 has been cup jointed to the inside of row material pipe 8 of filter residue, the upper end swing joint of lifter 9 has baffle 10, the outside swing joint of lifter 9 has hinge bar 11, the outside swing joint of hinge bar 11 has carousel 12, the lower extreme swing joint of row material pipe 8 of filter residue has elevator pipe 13, the upper end swing joint of elevator pipe 13 has latch 14, latch 14's outside meshing is connected with gear 15, the bottom swing joint of flushing tank 1 has fine filter screen 16, the lower extreme swing joint of fine filter screen 16 has delivery port 17, runner 46, the equal swing joint in outside of carousel 12 and screw rod 31 has the motor, the upper end swing joint of telescopic link 41 has swivel nut 32, and screw rod 31 has been cup jointed to the inside of swivel nut 32, the position of elevator pipe 13 bottom is in and is in same water flat line with fine filter screen 16.
The below of delivery port 17 is watered, wash the filter residue backwash to the inside of washing tank 1, the screw rod drives the swivel nut rotatory simultaneously, make telescopic link 41 move to the outside, thereby make telescopic link 41 downstream make the bracing piece 42 and the brush board 43 of below press close to with fine filter screen 16 mutually under the effect of gravity, movable rod 45 makes brush board 43 begin to vibrate under the drive of outside runner 46, thereby accelerate getting rid of fine filter screen 16 surface residue, the residue moves to elevator pipe 13 department along fine filter screen 16 downstream, elevator pipe 13 makes under the drive of outside gear 15, 14 upward movements rather than the latch of meshing, thereby make elevator pipe 13 upwards lift up and make residue and waste water arrange material pipe 8 discharge from the filter residue, thereby reach and clear away the inside filter residue of fine filter screen 16, improve the effect of filtration efficiency.
Example four:
referring to fig. 1-6, an automatic back-flushing pre-filtering device for geothermal tail water recharging comprises a flushing tank 1, the interior of the flushing tank 1 comprises a back-flushing mechanism 2, the interior of the back-flushing mechanism 2 is provided with a water inlet pipe 21, the exterior of the water inlet pipe 21 is connected with a flushing cover 22, the interior of the flushing cover 22 is connected with a flushing nozzle 23, the lower end of the flushing cover 22 is connected with a transfer water pipe 24, the interior of the flushing tank 1 further comprises a coarse screen washing mechanism 3, the interior of the coarse screen washing mechanism 3 is provided with a screw 31, the exterior of the screw 31 is sleeved with a screw sleeve 32, the exterior of the screw sleeve 32 is movably connected with a triangular support 33, the exterior of the triangular support 33 is movably connected with a connecting plate 34, the exterior of the connecting plate 34 is movably connected with an arc-shaped cleaning brush 35, the interior of the flushing tank 1 further comprises a fine screen washing mechanism 4, the interior of the fine screen washing mechanism 4 is movably connected with a telescopic rod 41, the lower end of the telescopic rod 41 is movably connected with a supporting rod 42, the lower end of the supporting rod 42 is connected with a brush plate 43, the outer part of the supporting rod 42 is sleeved with a lantern ring 44, the outer part of the lantern ring 44 is movably connected with a movable rod 45, the outer part of the movable rod 45 is movably connected with a rotating wheel 46, the upper end of the washing tank 1 is movably connected with a water inlet valve 5, the inner part of the washing tank 1 is movably connected with a coarse filter screen 6, the lower end of the coarse filter screen 6 is movably connected with a partition plate 7, the lower end of the partition plate 7 is movably connected with a filter residue discharge pipe 8, the inner part of the filter residue discharge pipe 8 is sleeved with a lifting rod 9, the upper end of the lifting rod 9 is movably connected with a baffle plate 10, the outer part of the lifting rod 9 is movably connected with a hinge rod 11, the outer part of the hinge rod 11 is movably connected with a rotating disc 12, the lower end of the discharge pipe 8 is movably connected with a lifting pipe 13, the upper end of the lifting pipe 13 is movably connected with a latch 14, and the outer part of the latch 14 is meshed with a gear 15, the bottom swing joint of washing tank 1 has fine filter screen 16, and the lower extreme swing joint of fine filter screen 16 has delivery port 17, and the equal swing joint in outside of runner 46, carousel 12 and screw rod 31 has the motor, and the upper end swing joint of telescopic link 41 has swivel nut 32, and the screw rod 31 has been cup jointed to the inside of swivel nut 32, and the position of fall way 13 bottom is in same water flat line with fine filter screen 16.
The working principle is as follows: when the device is used, the motor is connected with a power supply, the washing tank 1 can adhere a large amount of solid-phase particles to the inside and the surface of the coarse filter screen 6 and the fine filter screen 16 after the geothermal water is filtered, so that the next geothermal water filtering effect is influenced, at the moment, the external water flow reaches the washing nozzle 23 inside the washing cover 22 through the water inlet pipe 21, the washing nozzle 23 is provided with two groups of pipes 24 which are connected through a transfer pipe, the solid-phase particles clamped inside the coarse filter screen 6 are washed out of the coarse filter screen 6 by the washing nozzle 23 facing to the inside of the coarse filter screen 6, the screw rod 31 is movably connected inside the washing tank 1, the screw sleeve 32 is sleeved outside the screw rod 31, the screw rod 31 starts to rotate under the driving of the motor above, so that the screw sleeve 32 drives the external tripod 33 to move downwards, and the external part of the tripod 33 is movably connected with the connecting plate 34, an arc-shaped cleaning brush 35 is movably connected to the outer part of the connecting plate 34, so that the screw sleeve 32 drives the arc-shaped cleaning brush 35 to move downwards along with the coarse filter screen 6, so as to clean residues on the surface of the coarse filter screen 6, a baffle plate 7 is movably connected to the inner part of the washing tank 1, a filter residue discharge pipe 8 is movably connected to the inner part of the baffle plate 7, a rotary disc 12 in the filter residue discharge pipe 8 is driven by an external motor to drive a hinge rod 11 to rotate, an external lifting rod 9 is driven to move upwards, a baffle plate 10 is connected to the upper end of the filter residue discharge pipe 8, the lower end of the baffle plate 10 is connected with the lifting rod 9, when the baffle plate 10 rises, a pipe opening of the filter residue discharge pipe 8 is leaked, so that the residues cleaned from the inner part and the outer part of the coarse filter screen 6 are discharged, so that the effect of efficiently cleaning the filter residues in the coarse filter screen 6 is achieved, and a fine filter screen 16 is movably connected to the lower part of the washing tank 1, the lower extreme of fine filter screen 16 is connected with delivery port 17, when back flush, water is gone up from the below of delivery port 17, filter residue backflush to the inside of washing tank 1, the screw rod drives the swivel nut rotatory simultaneously, make telescopic link 41 move to the outside, thereby make telescopic link 41 move down under the effect of gravity make bracing piece 42 and brush board 43 and fine filter screen 16 of below press close to, be connected with movable rod 45 in the outside of bracing piece 42 simultaneously, movable rod 45 makes brush board 43 begin to vibrate under the drive of outside runner 46, thereby accelerate the getting rid of fine filter screen 16 surface residue, the residue moves down to elevator pipe 13 along fine filter screen 16, elevator pipe 13 makes the latch 14 of meshing with it upwards move under the drive of outside gear 15, thereby make elevator pipe 13 upwards lift up and make residue and waste water arrange the material 8 departments from the filter residue and arrange the pipe, thereby reach and clear away the filter residue in fine filter screen 16, improve the effect of filtration efficiency.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 (1)
1. The utility model provides a geothermal tail water recharge is with automatic back flush prefilter unit, includes washing jar (1), its characterized in that: the inside of the washing tank (1) comprises a back washing mechanism (2), a water inlet pipe (21) is arranged inside the back washing mechanism (2), the outside of the water inlet pipe (21) is connected with a washing cover (22), the inside of the washing cover (22) is connected with a washing nozzle (23), and the lower end of the washing cover (22) is connected with a transfer water pipe (24); the washing tank (1) is characterized in that a coarse screen washing mechanism (3) is further arranged inside the washing tank (1), a screw rod (31) is arranged inside the coarse screen washing mechanism (3), a threaded sleeve (32) is sleeved outside the screw rod (31), a triangular frame (33) is movably connected outside the threaded sleeve (32), a connecting plate (34) is movably connected outside the triangular frame (33), and an arc-shaped cleaning brush (35) is movably connected outside the connecting plate (34); the washing tank (1) is characterized in that a fine filter screen washing mechanism (4) is further arranged inside the washing tank (1), an expansion rod (41) is movably connected inside the fine filter screen washing mechanism (4), a support rod (42) is movably connected to the lower end of the expansion rod (41), a brush plate (43) is connected to the lower end of the support rod (42), a lantern ring (44) is sleeved outside the support rod (42), a movable rod (45) is movably connected to the outside of the lantern ring (44), and a rotating wheel (46) is movably connected to the outside of the movable rod (45); the upper end of the washing tank (1) is movably connected with a water inlet valve (5), the interior of the washing tank (1) is movably connected with a coarse filter screen (6), the lower end of the coarse filter screen (6) is movably connected with a partition plate (7), the lower end of the partition plate (7) is movably connected with a filter residue discharge pipe (8), a lifting rod (9) is sleeved in the filter residue discharge pipe (8), and the upper end of the lifting rod (9) is movably connected with a baffle (10); the outer part of the lifting rod (9) is movably connected with a hinged rod (11), the outer part of the hinged rod (11) is movably connected with a rotary table (12), the lower end of the filter residue discharging pipe (8) is movably connected with a lifting pipe (13), the upper end of the lifting pipe (13) is movably connected with a latch (14), the outer part of the latch (14) is meshed with a gear (15), the bottom of the washing tank (1) is movably connected with a fine filtering net (16), and the lower end of the fine filtering net (16) is movably connected with a water outlet (17);
the outer parts of the rotating wheel (46), the rotating disc (12) and the screw rod (31) are movably connected with motors; the upper end of the telescopic rod (41) is movably connected with a threaded sleeve (32), and a screw rod (31) is sleeved in the threaded sleeve (32); the bottom of the lifting pipe (13) is positioned at the same horizontal line with the fine filter screen (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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