CN210078973U - Back-flushing self-cleaning filtering equipment - Google Patents
Back-flushing self-cleaning filtering equipment Download PDFInfo
- Publication number
- CN210078973U CN210078973U CN201920575727.0U CN201920575727U CN210078973U CN 210078973 U CN210078973 U CN 210078973U CN 201920575727 U CN201920575727 U CN 201920575727U CN 210078973 U CN210078973 U CN 210078973U
- Authority
- CN
- China
- Prior art keywords
- shell
- filter element
- filter
- sucker
- back washing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 15
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 11
- 238000001914 filtration Methods 0.000 title claims abstract description 8
- 238000011001 backwashing Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 15
- 239000010865 sewage Substances 0.000 claims abstract description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The back-flushing self-cleaning filtering equipment comprises a shell (2), a filter element (4) and a back-flushing mechanism (20); the shell (2) is divided into an upper cavity (12) and a lower cavity (13) by the filter element flower plate (6); a plurality of filter elements (4) are fixedly arranged in the upper cavity (12) through a filter element pattern plate (6). The top of the shell (2) is provided with an automatic exhaust valve (11) and a speed reducer (1), and the speed reducer (1) is connected with a rotating shaft (3); the rotating shaft (3) penetrates through the upper cavity (12) and is connected with a back washing mechanism (20) arranged in the lower cavity (13); the upper end of the back washing mechanism (20) is communicated with the lower inlet of the filter element (4), and the lower end is connected with the sewage discharge pipe (9); a water inlet (8) is arranged on one side of the shell (2), a water outlet (10) is arranged on the other side of the shell, and an electric cabinet (5) is also arranged on the shell (2). The utility model discloses realize self-cleaning filter core, whole process, the material does not cut off, and the backwash water consumption is few, realizes serialization, automated production.
Description
Technical Field
The utility model relates to a self-cleaning filtration equipment of backwash formula.
Background
For industrial wastewater treatment, the filtrate contains a large amount of false-floating fine impurities. The traditional filter cannot be cleaned by self, so that the filter element is easily blocked, and the normal operation of a treatment process is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a back-flushing self-cleaning filtering device, which comprises a shell, a filter element and a back-flushing mechanism; the shell is divided into an upper cavity and a lower cavity through a filter element pattern plate; a plurality of filter elements are fixedly arranged in the upper cavity, and the filter elements are fixed on the filter element pattern plate; the top of the shell is provided with an automatic exhaust valve and a speed reducer, and the speed reducer is connected with a rotating shaft; the rotating shaft penetrates through the upper cavity and is fixedly connected with a back washing mechanism arranged in the lower cavity; the back washing mechanism comprises a suction pipe and a back washing sucker arranged at one end of the suction pipe; the backwashing sucker is connected with the inlet of the filter element, the other end of the suction pipe is connected with the sewage discharge pipe, and a polytetrafluoroethylene gasket is arranged on the backwashing sucker; an electric blow-down valve is arranged on the blow-down pipe; a water inlet is formed in one side of the shell, and a water outlet is formed in the other side of the shell; pressure sensors are arranged on the water inlet and the water outlet; the shell is further provided with an electric cabinet, and a timer and a PLC are arranged in the electric cabinet.
Furthermore, the diameter of the back washing sucker is larger than that of the end opening of the filter element.
Furthermore, the number of the ports of the backwashing sucker is less than that of the filter elements.
Further, the filter element is a high-strength Johnson filter screen.
Furthermore, the speed reducer, the pressure sensor, the timer and the electric blow-down valve are electrically connected with the PLC.
The utility model discloses reduced the filter volume, realized the self-cleaning filter core, whole process, the material does not cut off, and the backwash water consumption is few, realizes serialization, automated production.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the back washing sucker of the utility model.
Fig. 3 is a schematic view of the back washing state of the present invention.
In the figure, 1, a speed reducer, 2, a shell, 3, a rotating shaft, 4, a filter element, 5, an electric cabinet, 6, a filter element pattern plate, 7, a back washing sucker, 8, a water inlet, 9, a blow-off pipe, 10, a water outlet, 11, an automatic exhaust valve, 12, an upper cavity, 13, a lower cavity, 14, a polytetrafluoroethylene gasket, 15, a pressure sensor, 16, an electric blow-off valve, 17, a timer, 18, a PLC controller, 19, a suction pipe and 20, and a back washing mechanism.
Detailed Description
As shown in fig. 1, the back-flushing self-cleaning filtering device comprises a shell 2, a filter element 4 and a back-flushing mechanism 20. The housing 2 is divided into an upper chamber 12 and a lower chamber 13 by the filter element faceplate 6. A plurality of filter elements 4 are fixedly arranged in the upper cavity 12, through holes for installing the filter elements 4 are formed in the filter element flower plate 6, and the filter elements 4 are fixed on the filter element flower plate 6. The top of the shell 2 is provided with an automatic exhaust valve 11 and a speed reducer 1, and the speed reducer 1 is connected with a rotating shaft 3. The rotary shaft 3 passes through the upper chamber 12 and is fixedly connected with a backwashing mechanism 20 arranged in the lower chamber 13. The rotating shaft 3 is connected with the filter element flower plate 6 in a sealing way. The back flushing mechanism 20 comprises a suction pipe 19 and a back flushing suction cup 7 arranged at the top end of the suction pipe 19. The back washing sucker 7 is connected with the inlet at the lower end of the filter element 4, the bottom end of the suction pipe 19 is connected with the sewage discharge pipe 9, and the back washing sucker 7 is provided with a polytetrafluoroethylene gasket 14. An electric blow-down valve 16 is arranged on the blow-down pipe 9; the right side of the shell 2 is provided with a water inlet 8, and the left side is provided with a water outlet 10. Pressure sensors 15 are arranged on the water inlet 8 and the water outlet 10. The shell 2 is also provided with an electric cabinet 5, and a timer 17 and a PLC 18 are arranged in the electric cabinet 5.
The number of the backwashing suction cups 7 is less than that of the filter elements 4. The back washing sucker 7 is tightly attached to the lower part of the filter element flower plate 6, and the diameter of the back washing sucker 7 is larger than that of the filter element 4. Ensuring the long-term sealing of the back washing sucker 7 and the filter element flower plate 6 and enhancing the back washing effect.
The speed reducer 1, the pressure sensor 15, the timer 17 and the electric blow-down valve 16 are electrically connected with the PLC 18.
The utility model discloses a NRV type speed reducer, casing 2 adopt high-quality aluminum alloy die-casting, good heat dissipation, small in noise, light in weight, bearing capacity are big. The top is equipped with automatic exhaust valve 11, compact structure, opens and close the sensitivity. The filter element 4 adopts a high-strength Johnson filter screen, and has the advantages of high gap accuracy, large effective filter area, small pressure drop and high backwashing efficiency. The cleaning procedure adopts differential pressure control and a timing positioning mode, so that the backwashing water consumption is low and the cleaning is thorough.
During filtering, turbid liquid firstly enters the lower filter cavity 13 through the water inlet 8 and then enters the filter element 4 through the filter element flower plate 6, impurities are intercepted, and clean liquid passes through the gap to reach the upper filter cavity 12 and finally is sent out from the water outlet 10. When the impurities in the filter accumulate on the surface of the filter element 4 to cause the pressure difference between the inlet and the outlet to be increased to a set value or the timer 17 reaches the preset time, the PLC 18 sends a signal to drive the backwashing sucker 7 to perform backwashing. The speed reducer 1 drives the rotating shaft 3 to drive the backwashing sucker 7 to rotate to the lower inlet of the filter element 4. When the opening of the back washing sucker 7 is opposite to the lower inlet of the filter element 4, the electric blow-down valve 16 is opened, the system releases pressure and discharges water, a negative pressure area with relative pressure lower than the water pressure outside the filter element appears on the inner side of the filter element 4, so that part of clean circulating water is pressed into the inner side of the filter element 4 from the outer side of the filter element 4, and impurity particles adsorbed on the inner wall of the filter element 4 enter the back washing sucker 7 along with water flow and flow into the blow-down pipe 9 to. When the pressure difference between the inlet and the outlet of the filter is recovered to be normal or the set time of the timer is over, the speed reducer 1 stops operating, and the electric blow-down valve 16 is closed.
Claims (5)
1. The back-flushing self-cleaning filtering equipment is characterized in that: comprises a shell (2), a filter element (4) and a back washing mechanism (20); the shell (2) is divided into an upper cavity (12) and a lower cavity (13) through a filter element pattern plate (6); a plurality of filter elements (4) are fixedly arranged in the upper cavity (12), and the filter elements (4) are fixed on the filter element pattern plate (6); the top of the shell (2) is provided with an automatic exhaust valve (11) and a speed reducer (1), and the speed reducer (1) is connected with a rotating shaft (3); the rotating shaft (3) penetrates through the upper cavity (12) and is fixedly connected with a back washing mechanism (20) arranged in the lower cavity (13); the back washing mechanism (20) comprises a suction pipe (19) and a back washing sucker (7) arranged at one end of the suction pipe (19); the backwashing sucker (7) is connected with an inlet of the filter element (4), the other end of the suction pipe (19) is connected with the sewage discharge pipe (9), and a polytetrafluoroethylene gasket (14) is arranged on the backwashing sucker (7); an electric blow-down valve (16) is arranged on the blow-down pipe (9); a water inlet (8) is formed in one side of the shell (2), and a water outlet (10) is formed in the other side of the shell; pressure sensors (15) are arranged on the water inlet (8) and the water outlet (10); the shell (2) is further provided with an electric cabinet (5), and a timer (17) and a PLC (programmable logic controller) (18) are arranged in the electric cabinet (5).
2. A backwash self-cleaning filter apparatus as defined in claim 1 wherein: the diameter of the port of the backwashing sucker (7) is larger than that of the port of the filter element (4).
3. A backwash self-cleaning filter apparatus as defined in claim 1 wherein: the number of the ports of the backwashing sucker (7) is less than that of the filter elements (4).
4. A backwash self-cleaning filter apparatus as defined in claim 1 wherein: the filter element (4) is a high-strength Johnson filter screen.
5. A backwash self-cleaning filter apparatus as defined in claim 1 wherein: the speed reducer (1), the pressure sensor (15), the timer (17) and the electric blow-down valve (16) are electrically connected with the PLC (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920575727.0U CN210078973U (en) | 2019-04-25 | 2019-04-25 | Back-flushing self-cleaning filtering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920575727.0U CN210078973U (en) | 2019-04-25 | 2019-04-25 | Back-flushing self-cleaning filtering equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210078973U true CN210078973U (en) | 2020-02-18 |
Family
ID=69475854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920575727.0U Expired - Fee Related CN210078973U (en) | 2019-04-25 | 2019-04-25 | Back-flushing self-cleaning filtering equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210078973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307395A (en) * | 2021-05-21 | 2021-08-27 | 四川华能宝兴河水电有限责任公司 | Pollution discharge method for rotational flow automatic backwashing water filter |
-
2019
- 2019-04-25 CN CN201920575727.0U patent/CN210078973U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307395A (en) * | 2021-05-21 | 2021-08-27 | 四川华能宝兴河水电有限责任公司 | Pollution discharge method for rotational flow automatic backwashing water filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |