CN110639258A - Full-automatic back flush filter - Google Patents
Full-automatic back flush filter Download PDFInfo
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- CN110639258A CN110639258A CN201810681281.XA CN201810681281A CN110639258A CN 110639258 A CN110639258 A CN 110639258A CN 201810681281 A CN201810681281 A CN 201810681281A CN 110639258 A CN110639258 A CN 110639258A
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- Prior art keywords
- filter
- filtering
- valve rod
- sewage discharge
- discharge valve
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- 238000011001 backwashing Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000010865 sewage Substances 0.000 claims description 49
- 238000001914 filtration Methods 0.000 claims description 47
- 238000007789 sealing Methods 0.000 claims description 23
- 210000004907 gland Anatomy 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- B01D29/52—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 parallel connection
- B01D29/54—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 parallel 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
- B01D29/01—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 flat filtering elements
- B01D29/03—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 flat filtering elements self-supporting
-
- 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
-
- 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
- B01D29/686—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with a combination of movements with respect to the filtering elements
-
- 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
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a full-automatic backwashing filter, which comprises a filter chamber body (4) internally provided with a filter assembly (3), wherein the filter assembly (3) comprises a filter mandrel (25) and a plurality of filter units arranged on the side wall of the filter mandrel (25), each filter unit is of a five-layer structure comprising an outer flow guide disc (26), a filter mesh (27) and an inner flow guide disc (28), a blowdown valve (6) communicated with the filter assembly (3) is connected below a filter chamber base (8), a blowdown valve rod of a double-layer structure is connected in the blowdown valve (6), an outer blowdown valve rod (14) is fixedly connected with a movable base (9), an inner blowdown valve rod (15) is axially connected with an electric motor (16) through a transmission gear (19), and four corresponding matched valve rod blowdown holes are formed in the inner blowdown valve rod and the outer blowdown valve rod. The invention has the beneficial effects that: the filter has the advantages of high filter precision, automatic control, no need of manual intervention, simple operation and low labor intensity.
Description
Technical Field
The invention relates to a filtering device in the technical field of filtering equipment, in particular to a full-automatic backwashing filter.
Background
In the design of filter equipment in the industry of high-temperature, high-pressure and high-viscosity materials (such as plastics), in order to improve the service life and the working efficiency of the filter equipment, a backwashing filter device is favored by the majority of companies. The back-washing filtering device is a device which can remove the intercepted pollutant through back washing when the intercepted pollutant of the filtering material on the filtering net reaches a certain amount, so that the pollutant is discharged from a sewage outlet. High filter fineness's filter equipment requires that sewage discharging equipment can not appear pollutant seepage phenomenon at the blowdown in-process, treats simultaneously that the filter material needs all to get into filtering component and filters, and secondary pollution can not appear in the material after the filtration, consequently, high accuracy filter equipment has very high requirement to the sealing performance of filter chamber and blowdown valve body.
In the existing market, a few filtering devices which can perform backwashing and have high filtering precision are provided, and patent CN 201832471U discloses a hollow filtering disc and a laminated filter using the same, but the device needs to be provided with a high-pressure-resistant filtering net, so that the cost is high; meanwhile, in the back cleaning process, the filter screen is easy to fall off, and the use is influenced. Patent CN201521058339.3 discloses a disc-type stacked filter, which can realize reverse cleaning, but needs cleaning of a filter screen through an exchange inlet and an exchange outlet, and cannot be cleaned fully automatically, and the operation is troublesome.
Disclosure of Invention
Aiming at the defects and practical requirements of the existing backwashing filter device, the invention provides a full-automatic backwashing filter.
In order to achieve the above object, the invention takes the following measures:
a full-automatic back-washing filter comprises a filter chamber body with a built-in filter assembly, wherein the upper end and the lower end of the filter chamber body are respectively connected with an upper end cover of a filter chamber and a base of the filter chamber in a sealing fit mode, a feed inlet is formed in the base of the filter chamber, a discharge outlet is formed in the upper side wall of the filter chamber body, a heat medium jacket for heating the filter chamber body is sleeved outside the filter chamber body, a heat medium inlet is formed in the lower end of one side of the heat medium jacket, a heat medium outlet is formed in the upper end of the other side of the heat medium jacket, a filter assembly pressing device for pressing the filter assembly in the filter chamber body is connected to the upper end cover of the filter chamber body, the filter assembly comprises a hollow filter mandrel, the hollow part of the filter mandrel is communicated with the feed inlet, a plurality of independent filter units are connected to the side wall of, The filter comprises an annular inner flow guide disc arranged at the center of a filter unit, wherein two sides of the inner flow guide disc are respectively provided with a filter screen sheet, the outer side of each filter screen sheet is respectively provided with an annular outer flow guide disc, the disc surface of the inner flow guide disc is provided with a plurality of inner flow guide grooves, the inner circular side wall of the inner flow guide disc is provided with a plurality of inner flow guide holes correspondingly communicated with the inner flow guide grooves, the disc surface of the outer flow guide disc is provided with a plurality of outer flow guide grooves, the outer circular side wall of the outer flow guide disc is provided with a plurality of outer flow guide holes correspondingly communicated with the outer flow guide grooves, a circle of small holes are formed in the positions, corresponding to the inner flow guide discs, on a filter core shaft, and are communicated with the inner flow guide holes through a gap between the two filter screen sheets, a drain valve communicated with a filter assembly is hermetically connected below a filter chamber base, a drain valve jacket filled with a drain outlet is sleeved outside the drain valve connected to the drain outlet on the, the sewage discharging valve is internally and hermetically connected with a sewage discharging valve rod, the sewage discharging valve rod is of a double-layer structure comprising an inner sewage discharging valve rod and an outer sewage discharging valve rod, the outer sewage discharging valve rod is fixedly connected with a sewage discharging valve moving base which can move up and down along the axis of the sewage discharging valve through a flange, the inner sewage discharging valve rod is axially connected with an electric motor connected to the sewage discharging valve moving base through a transmission gear, the transmission gear is electrically connected with a pulse type encoder, and four valve rod sewage discharging holes which are correspondingly matched are formed in the same cross section of the outer sewage discharging valve rod and the inner;
the inner guide grooves are uniformly distributed on the disc surface of the inner guide disc, inner guide holes with the same number as the inner guide grooves are uniformly distributed on the inner circular side wall of the inner guide disc, the inner guide grooves are of tree structures with one inner layer having a plurality of outer layer notches, the inner layer notch of each inner guide groove is correspondingly communicated with one inner guide hole, the outer guide grooves are uniformly distributed on the disc surface of the outer guide disc, the outer guide holes with the same number as the outer guide grooves are uniformly distributed on the outer circular side wall of the outer guide disc, and the outer guide grooves are of a straight-line structure with only one notch on the inner layer and the outer layer;
a jacket exhaust valve communicated with the filtering chamber body is arranged at the discharge port;
the joint of the blowoff valve and the filter chamber base is compressed and filled with upper sealing packing through an upper sealing gland, the joint of the tail end of the blowoff valve and the outer sewage discharge valve rod is compressed and filled with lower sealing packing through a lower sealing gland, and O-shaped sealing rings are arranged between the filter chamber body and the filter chamber upper end cover, between the filter chamber body and the filter chamber base and between the filter chamber body and the filter chamber base;
the pulse type encoder is an incremental photoelectric pulse type encoder.
The invention has the beneficial effects that: the upper end and the lower end of the sewage discharge valve body are respectively provided with a seal, so that the phenomena of leakage and the like between the sewage discharge valve body and the sewage discharge valve rod are avoided, and the sealing performance is good; the filter assembly pressing device can press the filter assembly in the filter chamber body to form a closed filter channel with the filter chamber body, the filter assembly cannot be loosened, the fact that all entering materials can enter the filter assembly for filtering is guaranteed, the entering materials cannot directly enter the filter chamber body and are discharged, meanwhile, a jacket exhaust valve communicated with the filter chamber body is arranged at a discharge port, air in the filter chamber can be discharged by opening the exhaust valve before filtering is started, the vacuum state of the filter chamber can guarantee that secondary pollution cannot occur to the filtered materials in the filter chamber, and the filtering precision is high; the inlet and the outlet do not need to be exchanged in the cleaning process of the filter screen, the opening and the closing of the blowoff valve are controlled by the pulse type encoder, the automatic control is realized, the manual intervention is not needed, the operation is simple, and the labor intensity is low.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the waste valve of the present invention;
FIG. 3 is a schematic view of the filter assembly of the present invention.
FIG. 4 is a schematic view of a portion of the filter assembly of the present invention;
fig. 5 is a schematic structural view of an outer diaphragm according to the present invention;
fig. 6 is a schematic structural view of an inner diaphragm of the present invention.
In the figure, 1, a filter assembly pressing device; 2. an upper end cover of the filter chamber; 3. a filter assembly; 4. a filter chamber body; 5. a heating medium jacket; 6. a blowoff valve; 7. a jacket exhaust valve; 8. a filter chamber base; 9. a blowoff valve moving base; 10. a heating medium inlet; 11. a heating medium outlet; 12. a feed inlet; 13. a discharge port; 14. an outer sewage discharge valve rod; 15. an inner drain valve rod; 16. an electric motor; 17. a sewage draining outlet; 18. a blowdown valve jacket; 19. a transmission gear; 20. a pulse type encoder; 21. upper sealing filler; 22. an upper sealing gland; 23. a lower seal packing; 24. a lower sealing gland; 25. a filter mandrel; 26. an outer flow guiding disc; 27. a filter mesh sheet; 28. an inner flow guiding disc; 29. a disk sheet gland; 30. an outer guide groove; 31. an outer flow guide hole; 32. an inner diversion trench; 33. and an inner diversion hole.
Detailed Description
In order to overcome the defects of the existing backwashing filter device and meet the practical requirements, a full-automatic backwashing filter (as shown in figures 1-6) is designed, which comprises a filter chamber body 4 internally provided with a filter component 3, the upper end and the lower end of the filter chamber body 4 are respectively connected with an upper end cover 2 of a filter chamber and a base 8 of the filter chamber in a sealing fit manner, a feed inlet 12 is arranged on the base 8 of the filter chamber, a discharge outlet 13 is arranged on the upper side wall of the filter chamber body 4, a heat medium jacket 5 for heating the filter chamber body 4 is sleeved outside the filter chamber body 4, a heat medium inlet 10 is arranged at the lower end of one side of the heat medium jacket 5, a heat medium outlet 11 is arranged at the upper end of the other side of the heat medium jacket 5, the upper end cover 2 of the filter chamber is connected with a filter component pressing device 1 for pressing the filter component 3 in the filter chamber body 4, the filter component 3 comprises a hollow filter, the side wall of the filter mandrel 25 is connected with a plurality of independent filter units, the top end of the filter mandrel 25 is provided with a disc gland 29, each filter unit is a five-layer structure formed by overlapping an outer diversion plate 26, a filter screen 27 and an inner diversion plate 28 in a staggered manner according to a certain sequence, the filter mandrel comprises an annular inner diversion plate 28 arranged at the center of the filter unit, two sides of the inner diversion plate 28 are respectively provided with one filter screen 27, the outer side of each filter screen 27 is respectively provided with an annular outer diversion plate 26, the disc surface of the inner diversion plate 28 is provided with a plurality of inner diversion grooves 32, the inner circular side wall of the inner diversion plate 28 is provided with a plurality of inner diversion holes 33 correspondingly communicated with the inner diversion grooves 32, the disc surface of the outer diversion plate 26 is provided with a plurality of outer diversion grooves 30, the outer circular side wall of the outer diversion plate 26 is provided with a plurality of outer diversion holes 31 correspondingly communicated with the outer diversion grooves 30, a circle of small holes are arranged at the positions, corresponding to the inner diversion plates, the small hole is communicated with an inner flow guide hole 33 through a gap between two filter meshes 27, a blow-down valve 6 communicated with the filter assembly 3 is hermetically connected below the filter chamber base 8, a blow-down valve jacket 18 filled with a heat medium is sleeved outside the blow-down valve 6 connected with a blow-down outlet 17 on the lower side wall, a blow-down valve rod is hermetically connected in the blow-down valve 6, the blow-down valve rod is of a double-layer structure comprising an inner blow-down valve rod 15 and an outer blow-down valve rod 14, the outer blow-down valve rod 14 is fixedly connected with a blow-down valve moving base 9 capable of moving up and down along the axis of the blow-down valve through a flange, the inner blow-down valve rod 15 is axially connected with an electric motor 16 connected on the blow-down valve moving base 9 through a transmission gear 19, the transmission gear 19 is electrically connected with a pulse type encoder 20, and four; the inner guide grooves 32 are uniformly distributed on the disc surface of the inner guide disc 28, the inner guide holes 33 with the same number as the inner guide grooves 32 are uniformly distributed on the inner circular side wall of the inner guide disc 28, the inner guide grooves 32 are of a tree-shaped structure with an inner layer with a plurality of notches and an outer layer with a plurality of notches, the inner layer notch of each inner guide groove 32 is correspondingly communicated with one inner guide hole 33, the outer guide grooves 30 are uniformly distributed on the disc surface of the outer guide disc 26, the outer guide holes 31 with the same number as the outer guide grooves 30 are uniformly distributed on the outer circular side wall of the outer guide disc 26, and each outer guide groove 30 is of a straight-line structure with only one notch on the inner layer and the outer layer; a jacket exhaust valve 7 communicated with the filtering chamber body 4 is arranged at the discharge port 13; the joint of the blowdown valve 6 and the filtering chamber base 8 is compressed and filled with upper sealing packing 21 through an upper sealing gland 22, the joint of the tail end of the blowdown valve 6 and the outer blowdown valve rod 14 is compressed and filled with lower sealing packing 23 through a lower sealing gland 24, and O-shaped sealing rings are arranged between the filtering chamber body 4 and the filtering chamber upper end cover 2, between the filtering chamber body 4 and the filtering chamber base 8 and between the filtering chamber body 4 and the filtering chamber base 8; the pulsed encoder 20 is an incremental electro-optic pulsed encoder.
The working principle of the invention is as follows: in the filtering process, the filtered material enters the filtering core shaft 25 from the feeding hole 12, then uniformly flows into the inner diversion disk 28 of each layer through the inner diversion holes 33, is uniformly distributed to each corner of the inner diversion groove 32, flows into the outer diversion disk 26 through the filter meshes 27 on both sides of the inner diversion disk 28 under the action of pressure, and finally flows into the filtering chamber body 4 through the outer diversion groove 30 and the outer diversion holes 31, and impurities are remained in the inner diversion groove 32. In the cleaning process, the outer sewage discharge valve rod 14 fixedly connected to the sewage discharge valve moving base 9 can move up and down along the axis of the sewage discharge valve together with the moving base 9 in a certain stroke, impurities in each layer of filter screen in the filter chamber are cleaned, and the inner sewage discharge valve rod 15 can not only move up and down together with the outer sewage discharge valve rod 14, but also can rotate along the axis under the action of the electric motor 16 and the transmission gear 19. When the four sewage draining holes on the inner valve rod and the outer valve rod are completely overlapped, the sewage draining valve is in a fully open state, and the cleaning sewage flows to the sewage draining outlet 17 from the sewage draining holes; when the inner blow-off valve rod 15 is rotated and the blow-off holes of the inner valve rod and the outer valve rod are crossed by 45 degrees, the blow-off valve is in a completely closed state; the pulse type encoder 20 adjusts the opening degree of the blowdown valve rod (i.e. the rotation angle of the inner blowdown valve rod 4) in real time as required to balance the pressure fluctuation of the filtered material.
The invention has the beneficial effects that: the upper end and the lower end of the sewage discharge valve body are respectively provided with a seal, so that the phenomena of leakage and the like between the sewage discharge valve body and the sewage discharge valve rod are avoided, and the sealing performance is good; the filter assembly pressing device can press the filter assembly in the filter chamber body to form a closed filter channel with the filter chamber body, the filter assembly cannot be loosened, the fact that all entering materials can enter the filter assembly for filtering is guaranteed, the entering materials cannot directly enter the filter chamber body and are discharged, meanwhile, a jacket exhaust valve communicated with the filter chamber body is arranged at a discharge port, air in the filter chamber can be discharged by opening the exhaust valve before filtering is started, the vacuum state of the filter chamber can guarantee that secondary pollution cannot occur to the filtered materials in the filter chamber, and the filtering precision is high; the inlet and the outlet do not need to be exchanged in the cleaning process of the filter screen, the opening and the closing of the blowoff valve are controlled by the pulse type encoder, the automatic control is realized, the manual intervention is not needed, the operation is simple, and the labor intensity is low.
Simple modifications and substitutions by one of ordinary skill in the art are intended to be within the scope of the present invention.
Claims (5)
1. A full-automatic backwashing filter comprises a filter chamber body (4) internally provided with a filter component (3), wherein the upper end and the lower end of the filter chamber body (4) are respectively connected with a filter chamber upper end cover (2) and a filter chamber base (8) in a sealing fit manner, a feed inlet (12) is arranged on the filter chamber base (8), a discharge outlet (13) is arranged on the upper side wall of the filter chamber body (4), the full-automatic backwashing filter is characterized in that a heat medium jacket (5) for heating the filter chamber body (4) is sleeved outside the filter chamber body (4), a heat medium inlet (10) is arranged at the lower end of one side of the heat medium jacket (5), a heat medium outlet (11) is arranged at the upper end of the other side of the heat medium jacket (5), the filter component compressing device (1) for compressing the filter component (3) in the filter chamber body (4) is connected on the filter chamber upper end cover (2), the filter component (3) comprises, the hollow part of the filtering mandrel (25) is communicated with the feed inlet (12), the side wall of the filtering mandrel (25) is connected with a plurality of independent filtering units, the top end of the filtering mandrel (25) is provided with a disk gland (29), each filtering unit is a five-layer structure formed by overlapping an outer flow guide disk (26), a filtering net sheet (27) and an inner flow guide disk (28) in a staggered way according to a certain sequence, the filtering unit comprises an annular inner flow guide disk (28) arranged at the center of the filtering unit, two sides of the inner flow guide disk (28) are respectively provided with one filtering net sheet (27), the outer side of each filtering net sheet (27) is respectively provided with one annular outer flow guide disk (26), the disk surface of the inner flow guide disk (28) is provided with a plurality of inner flow guide grooves (32), the inner circular side wall of the inner flow guide disk (28) is provided with a plurality of inner holes (33) correspondingly communicated with the inner flow guide grooves (32), the disk surface of the outer flow guide disk (, the outer side wall of the outer guide disc (26) is provided with a plurality of outer guide holes (31) correspondingly communicated with the outer guide grooves (30), the corresponding position of the filter mandrel (25) and the inner guide disc (28) is provided with a circle of small holes, the small holes are communicated with the inner guide holes (33) through a gap between two filter net sheets (27), the lower part of the filter chamber base (8) is hermetically connected with a sewage discharge valve (6) communicated with the filter assembly (3), the outer part of the sewage discharge valve (6) connected with a sewage discharge outlet (17) on the lower side wall is sleeved with a sewage discharge valve jacket (18) filled with a heat medium, the inner part of the sewage discharge valve (6) is hermetically connected with a sewage discharge valve rod, the sewage discharge valve rod is of a double-layer structure comprising an inner sewage discharge valve rod (15) and an outer sewage discharge valve rod (14), the outer sewage discharge valve rod (14) is fixedly connected with a sewage discharge valve moving base (9) capable, the inner sewage discharge valve rod (15) is axially connected with an electric motor (16) connected to a sewage discharge valve moving base (9) through a transmission gear (19), the transmission gear (19) is electrically connected with a pulse type encoder (20), and four corresponding matched valve rod sewage discharge holes are formed in the same cross section of the outer sewage discharge valve rod (14) and the inner sewage discharge valve rod (15).
2. The full-automatic backwashing filter of claim 1, wherein the inner baffle grooves (32) are uniformly distributed on the disc surface of the inner baffle disc (28), the inner baffle holes (33) with the same number as the inner baffle grooves (32) are uniformly distributed on the inner circular side wall of the inner baffle disc (28), the inner baffle grooves (32) are of a tree structure with a plurality of inner-layer notches and outer-layer notches, the inner-layer notch of each inner baffle groove (32) is correspondingly communicated with one inner baffle hole (33), the outer baffle grooves (30) are uniformly distributed on the disc surface of the outer baffle disc (26), the outer baffle holes (31) with the same number as the outer baffle grooves (30) are uniformly distributed on the outer circular side wall of the outer baffle disc (26), and the outer baffle grooves (30) are of a straight-line structure with only one notch on each of the inner layer and the outer layer.
3. The full-automatic backwashing filter of claim 1 or 2, wherein a jacket exhaust valve (7) communicated with the filtering chamber body (4) is arranged at the discharge port (13).
4. A full-automatic backwashing filter as claimed in claim 3, wherein the joint of the blowdown valve (6) and the filtering chamber base (8) is compressed and filled with upper sealing packing (21) through an upper sealing gland (22), the joint of the tail end of the blowdown valve (6) and the outer blowdown valve rod (14) is compressed and filled with lower sealing packing (23) through a lower sealing gland (24), and O-ring seals are arranged between the filtering chamber body (4) and the filtering chamber upper end cover (2), between the filtering chamber body (4) and the filtering chamber base (8) and between the filtering chamber body and the filtering chamber base (8).
5. A backwash blowdown valve stem assembly as claimed in claim 3 wherein the pulsed encoder (20) is an incremental photo-electric pulsed encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810681281.XA CN110639258A (en) | 2018-06-27 | 2018-06-27 | Full-automatic back flush filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810681281.XA CN110639258A (en) | 2018-06-27 | 2018-06-27 | Full-automatic back flush filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110639258A true CN110639258A (en) | 2020-01-03 |
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ID=68988856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810681281.XA Pending CN110639258A (en) | 2018-06-27 | 2018-06-27 | Full-automatic back flush filter |
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| Country | Link |
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| CN (1) | CN110639258A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117101217A (en) * | 2023-10-23 | 2023-11-24 | 泉州威可赛机械科技有限公司 | High compression resistance filtering component for backwashing filter |
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| CN105396353A (en) * | 2015-12-18 | 2016-03-16 | 浙江宇丰机械有限公司 | High-viscosity material full-automatic backwashing coarse-filtration system |
| CN205216334U (en) * | 2015-12-18 | 2016-05-11 | 浙江宇丰机械有限公司 | Range upon range of formula filter of disc type |
| CN106669253A (en) * | 2017-01-22 | 2017-05-17 | 泉州威可赛机械科技有限公司 | Full-automatic backwash filter |
| CN208809571U (en) * | 2018-06-27 | 2019-05-03 | 浙江宇丰机械有限公司 | A kind of full-automatic back washing filter |
-
2018
- 2018-06-27 CN CN201810681281.XA patent/CN110639258A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105396353A (en) * | 2015-12-18 | 2016-03-16 | 浙江宇丰机械有限公司 | High-viscosity material full-automatic backwashing coarse-filtration system |
| CN205216334U (en) * | 2015-12-18 | 2016-05-11 | 浙江宇丰机械有限公司 | Range upon range of formula filter of disc type |
| CN106669253A (en) * | 2017-01-22 | 2017-05-17 | 泉州威可赛机械科技有限公司 | Full-automatic backwash filter |
| CN208809571U (en) * | 2018-06-27 | 2019-05-03 | 浙江宇丰机械有限公司 | A kind of full-automatic back washing filter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117101217A (en) * | 2023-10-23 | 2023-11-24 | 泉州威可赛机械科技有限公司 | High compression resistance filtering component for backwashing filter |
| CN117101217B (en) * | 2023-10-23 | 2023-12-19 | 泉州威可赛机械科技有限公司 | High compression resistance filtering component for backwashing filter |
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