CN210302651U - Automatic back-flushing seawater filter - Google Patents
Automatic back-flushing seawater filter Download PDFInfo
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- CN210302651U CN210302651U CN201921178314.5U CN201921178314U CN210302651U CN 210302651 U CN210302651 U CN 210302651U CN 201921178314 U CN201921178314 U CN 201921178314U CN 210302651 U CN210302651 U CN 210302651U
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Abstract
The utility model relates to an automatic back flush sea water filter. The water purifier comprises a shell, wherein a water inlet is formed in one end of the shell, a filter screen installation cavity is formed in the shell, a water outlet is formed in the shell on one side of the filter screen installation cavity, a cylindrical filter screen is arranged in the filter screen installation cavity, a hollow shaft is arranged in the center of the cylindrical filter screen, and two ends of the hollow shaft penetrate through two ends of the filter screen installation cavity respectively; a cavity water inlet hole is formed in one end, close to the water inlet, of the filter screen mounting cavity, the other end of the filter screen mounting cavity is connected with the shell in a sealing mode, an impeller is arranged between the cavity water inlet hole and the water inlet, and the impeller is fixed to one end of the hollow shaft; the other end of the hollow shaft is a back washing outlet; the hollow shaft is provided with a plurality of suction channels, the end parts of the suction channels are suction nozzles, and the suction nozzles are positioned on the inner side of the cylindrical filter screen.
Description
Technical Field
The utility model discloses an automatic back flush sea water filter belongs to boats and ships ballast water management system field.
Background
At present, a commonly used seawater filter with automatic ballast water backwashing is back-flushed by driving a backwashing mechanism by a motor and a control mechanism. The transmission and control mechanism of the filter is complex, the maintenance difficulty is high, and the transmission mechanism is arranged at one end of the filter, so that the effective space of the filter is reduced, and the filter element disassembly and maintenance difficulty is increased.
The utility model discloses a filter of ship ballast water treatment facilities, like application number 201621028031.9, it is mainly through setting up negative pressure pipe and brush post in the filter screen, and be connected with the elevating system who sets up in barrel one end respectively, drives elevating system through the control motor and drives negative pressure pipe and the up-and-down motion of brush post, realizes clearing up the impurity of filter screen. The structure is complex, when the filter screen is cleaned, the positive and negative rotation of the motor needs to be controlled to realize the lifting motion of the screw rod-nut structure, and the rotary motion of the hairbrush is realized through the gear mechanism. Due to the existence of various meshing mechanisms, the disassembly and the assembly are very inconvenient during maintenance, and the maintenance cost is increased.
Disclosure of Invention
An object of the utility model is to overcome the defect that exists among the prior art, provide one kind and make, install and maintain the degree of difficulty low, improve production and maintenance efficiency's automatic back flush sea water filter.
The utility model discloses a realize like this: an automatic backwashing seawater filter comprises a shell, wherein a water inlet is formed in one end of the shell, a filter screen installation cavity is formed in the shell, a water outlet is formed in the shell on one side of the filter screen installation cavity, a cylindrical filter screen is arranged in the filter screen installation cavity, a hollow shaft is arranged in the center of the cylindrical filter screen, and two ends of the hollow shaft penetrate through two ends of the filter screen installation cavity respectively; a cavity water inlet hole is formed in one end, close to the water inlet, of the filter screen mounting cavity, the other end of the filter screen mounting cavity is connected with the shell in a sealing mode, an impeller is arranged between the cavity water inlet hole and the water inlet, and the impeller is fixed to one end of the hollow shaft; the other end of the hollow shaft is a back washing outlet; the hollow shaft is provided with a plurality of suction channels, the end parts of the suction channels are suction nozzles, and the suction nozzles are positioned on the inner side of the cylindrical filter screen.
The two ends of the filter screen installation cavity are respectively composed of an upper baffle and a lower baffle, the cavity water inlet hole is located in the lower baffle, and the cavity water inlet hole is communicated with the inside of the cylindrical filter screen.
The suction nozzle is a linear suction nozzle.
The hollow shaft is connected with the impeller in an interference fit manner.
One end of the hollow shaft is closed, and a back flush outlet of the hollow shaft is connected with the slag discharge pump.
The number of the suction channels is 4-12, and the suction channels are uniformly arranged on the hollow shaft.
The impeller is an open impeller, the front end of the axis of the impeller is of a bullet-shaped structure, and the water inlet is covered by the impeller in size.
The utility model has the advantages that: through the impeller and the hollow shaft, the hollow shaft and the suction nozzle are directly driven to move by utilizing water power, so that impurities are filtered and discharged, control mechanisms such as a driving motor, a gear transmission mechanism, a limit switch and the like of a backwashing device in the prior art are completely eliminated, the height size of the filter is reduced, and moving parts are reduced; the utility model discloses it is low to make, install and maintain the degree of difficulty, has improved production and maintenance efficiency greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1. a housing; 2. a water inlet; 3. a filter screen mounting cavity; 4. a water outlet; 5. a cylindrical filter screen; 6. a hollow shaft; 7. a water inlet of the cavity; 8. a blocking piece is arranged; 9. a lower baffle plate; 10. an impeller; 11. a backwash outlet; 12. a suction channel; 13. a suction nozzle.
Detailed Description
According to fig. 1, the automatic backwashing seawater filter of the utility model comprises a shell 1, wherein one end of the shell 1 is provided with a water inlet 2, a filter screen installation cavity 3 is arranged in the shell 1, a water outlet 4 is arranged on the shell 1 at one side of the filter screen installation cavity 3, a cylindrical filter screen 5 is arranged in the filter screen installation cavity 3, a hollow shaft 6 is arranged in the center of the cylindrical filter screen 5, and two ends of the hollow shaft 6 respectively pass through two ends of the filter screen installation cavity 3; a cavity water inlet hole 7 is formed in one end, close to the water inlet 2, of the filter screen installation cavity 3, and the other end of the filter screen installation cavity 3 is connected with the shell 1 in a sealing mode; in a preferred embodiment, two ends of the filter screen installation cavity 3 are respectively composed of an upper baffle 8 and a lower baffle 9, the cavity water inlet 7 is located on the lower baffle 9, and the cavity water inlet 7 is communicated with the inside of the cylindrical filter screen 5; seawater enters the shell 1 through the water inlet 2, enters the cylindrical filter screen 5 through the cavity water inlet hole 7, is filtered by the cylindrical filter screen 5, and is discharged through the water outlet 4.
An impeller 10 is arranged between the cavity water inlet 7 and the water inlet 2, the impeller 10 is fixed at one end of the hollow shaft 6, and one end of the hollow shaft 6 connected with the impeller 10 is a closed end; the hollow shaft 6 is connected with the impeller 10 in an interference fit manner. The impeller 10 is an open impeller, the front end of the axis of the impeller 10 is of a bullet-shaped structure, and the impeller 10 covers the water inlet 2 in size. The other end of the hollow shaft 6 is a back flush outlet 11; the hollow shaft 6 is provided with a plurality of suction channels 12, the end parts of the suction channels 12 are suction nozzles 13, in a preferred mode, the suction nozzles 13 are linear suction nozzles, and the suction nozzles 13 can sweep the whole cylindrical filter screen 5 during backwashing, as shown in fig. 1, the suction nozzles 13 are linear suction nozzles in a shape of a straight line; the suction nozzle 13 is located inside the cylindrical sieve 5. The number of suction channels 12 is 4-12, preferably 12, which are arranged uniformly on hollow shaft 6. The back washing outlet 11 is connected with a slag discharge pump.
Claims (7)
1. An automatic back flush seawater filter which is characterized in that: the water purifier comprises a shell, wherein a water inlet is formed in one end of the shell, a filter screen installation cavity is formed in the shell, a water outlet is formed in the shell on one side of the filter screen installation cavity, a cylindrical filter screen is arranged in the filter screen installation cavity, a hollow shaft is arranged in the center of the cylindrical filter screen, and two ends of the hollow shaft penetrate through two ends of the filter screen installation cavity respectively; a cavity water inlet hole is formed in one end, close to the water inlet, of the filter screen mounting cavity, the other end of the filter screen mounting cavity is connected with the shell in a sealing mode, an impeller is arranged between the cavity water inlet hole and the water inlet, and the impeller is fixed to one end of the hollow shaft; the other end of the hollow shaft is a back washing outlet; the hollow shaft is provided with a plurality of suction channels, the end parts of the suction channels are suction nozzles, and the suction nozzles are positioned on the inner side of the cylindrical filter screen.
2. The automatic backwash seawater filter according to claim 1, wherein: the two ends of the filter screen installation cavity are respectively composed of an upper baffle and a lower baffle, the cavity water inlet hole is located in the lower baffle, and the cavity water inlet hole is communicated with the inside of the cylindrical filter screen.
3. The automatic backwash seawater filter according to claim 1, wherein: the suction nozzle is a linear suction nozzle.
4. The automatic backwash seawater filter according to claim 1, wherein: the hollow shaft is connected with the impeller in an interference fit manner.
5. The automatic backwash seawater filter according to claim 1, wherein: one end of the hollow shaft is closed, and a back flush outlet of the hollow shaft is connected with the slag discharge pump.
6. The automatic backwash seawater filter according to claim 1, wherein: the number of the suction channels is 4-12, and the suction channels are uniformly arranged on the hollow shaft.
7. The automatic backwash seawater filter according to claim 1, wherein: the impeller is an open impeller, and the water inlet is covered by the impeller in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921178314.5U CN210302651U (en) | 2019-07-25 | 2019-07-25 | Automatic back-flushing seawater filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921178314.5U CN210302651U (en) | 2019-07-25 | 2019-07-25 | Automatic back-flushing seawater filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210302651U true CN210302651U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921178314.5U Active CN210302651U (en) | 2019-07-25 | 2019-07-25 | Automatic back-flushing seawater filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN210302651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252009A (en) * | 2019-07-25 | 2019-09-20 | 江苏汉盛海洋装备技术有限公司 | Automatic backwash sea water filter |
-
2019
- 2019-07-25 CN CN201921178314.5U patent/CN210302651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252009A (en) * | 2019-07-25 | 2019-09-20 | 江苏汉盛海洋装备技术有限公司 | Automatic backwash sea water filter |
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