CN213643307U - Self-cleaning filter with constant pressure function - Google Patents
Self-cleaning filter with constant pressure function Download PDFInfo
- Publication number
- CN213643307U CN213643307U CN202022572382.9U CN202022572382U CN213643307U CN 213643307 U CN213643307 U CN 213643307U CN 202022572382 U CN202022572382 U CN 202022572382U CN 213643307 U CN213643307 U CN 213643307U
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- Prior art keywords
- tank body
- water inlet
- extrusion
- pipe
- valve
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- 238000004140 cleaning Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 106
- 238000001125 extrusion Methods 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 9
- 238000011001 backwashing Methods 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model relates to a self-cleaning filter with constant pressure function, which relates to the technical field of filters and also comprises an extrusion tank body, an extrusion bag, an air compressor, a pressurizing water inlet pipe and a pressurizing water inlet valve; the tip at jar body is fixed to the extrusion jar body, and the internal extrusion bag that is equipped with of extrusion jar, the internal cavity of extrusion jar is connected with the output of air compressor machine, and the bottom through connection of extrusion bag has the pressure boost oral siphon, and the other end of pressure boost oral siphon passes behind the diapire of the extrusion jar body, with the diapire through connection of the jar body, is connected with the pressure boost water valve on the pressure boost oral siphon. The pressure stabilizing air bag is added in the tank body, and when a large amount of water loss and pressure loss of the system are detected, pressure is supplemented into the system in time so as to maintain the stability of the system pressure.
Description
Technical Field
The utility model relates to a filter technical field, concretely relates to self-cleaning filter with level pressure function.
Background
The current self-cleaning filter can only filter impurities in circulating water, and the differential pressure inside and outside the filter screen is detected by a differential pressure sensor, so that pollution discharge can be carried out when the differential pressure reaches a set value.
The existing self-cleaning filter detects the pressure difference inside and outside the filter screen through a pressure difference sensor to judge the amount of the impurities intercepted, the larger the pressure difference is, the more the impurities are intercepted, when the sewage discharge is opened, the pressure difference is reduced along with the clean flushing of the impurities, when the set value is reached, an electric valve is closed, but some impurities with flexibility can be flushed for a long time, and a backwashing valve is opened for a long time, so that the system loses a large amount of water, the pressure is rapidly reduced, and when the pressure is reduced to a certain degree, the equipment running in the system is stopped.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a reasonable in design's self-cleaning filter with level pressure function, increased the steady voltage gasbag in jar body, when detecting a large amount of dehydration decompression of system, in time toward carrying out the repression in the system to the stability of maintenance system pressure.
In order to achieve the above purpose, the utility model adopts the following technical proposal: the device comprises a tank body, a filter screen, a scraper, a rotating shaft, a motor, a water inlet pipe, a water inlet valve, a water inlet pressure detector, a water outlet pipe, a water outlet valve, a water outlet pressure detector, a drain pipe and a back flush valve; a motor is fixed on the side wall of the tank body by a motor support, an output shaft of the motor penetrates through the side wall of the tank body and then is connected with a rotating shaft by a coupling, scrapers are symmetrically connected to the rotating shaft from left to right, the scrapers are arranged in a filter screen, a cross arm of each scraper is in contact with the inner wall of the filter screen, the filter screen is fixed in the tank body, and a gap is formed between the outer wall of the filter screen and the inner wall of; the bottom of the tank body is connected with a water inlet pipe in a through way, the water inlet pipe is arranged between the right end of the filter screen and the inner wall of the right side of the tank body, and the water inlet pipe is connected with a water inlet valve and a water inlet pressure detector; the bottom of the tank body is connected with a water outlet pipe in a run-through manner, the water outlet pipe is arranged at the position below the net wall of the filter screen, the water outlet pipe is connected with a water outlet valve and a water outlet pressure detector, the tank body at the position opposite to the water inlet pipe is connected with a drain pipe in a run-through manner, and the drain pipe is connected with a back flush valve; the device also comprises an extrusion tank body, an extrusion bag, an air compressor, a pressurizing water inlet pipe and a pressurizing water inlet valve; the tip at jar body is fixed to the extrusion jar body, and the internal extrusion bag that is equipped with of extrusion jar, the internal cavity of extrusion jar is connected with the output of air compressor machine, and the bottom through connection of extrusion bag has the pressure boost oral siphon, and the other end of pressure boost oral siphon passes behind the diapire of the extrusion jar body, with the diapire through connection of the jar body, is connected with the pressure boost water valve on the pressure boost oral siphon.
Furthermore, a liquid level controller is arranged in the extrusion bag and is electrically connected with an electromagnetic valve connected to an external water pipe at the inlet end of the extrusion bag.
After the structure is adopted, the beneficial effects of the utility model are that: the utility model provides a self-cleaning filter with level pressure function has increased the steady voltage gasbag in jar body, when detecting a large amount of desiccation decompression of system, in time mends the pressure toward the system in to the stability of maintenance system pressure.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
the device comprises a tank body 1, a filter screen 2, a scraper 3, a rotating shaft 4, a motor 5, a water inlet pipe 6, a water inlet valve 7, a water inlet pressure detector 8, a water outlet pipe 9, a water outlet valve 10, a water outlet pressure detector 11, a sewage discharge pipe 12, a back flush valve 13, an extrusion tank body 14, an extrusion bag 15, a liquid level controller 16, an air compressor 17, a pressurizing water inlet pipe 18, a pressurizing water inlet valve 19 and an electromagnetic valve 20.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the following technical solutions are adopted in the present embodiment: the device comprises a tank body 1, a filter screen 2, a scraper 3, a rotating shaft 4, a motor 5, a water inlet pipe 6, a water inlet valve 7, a water inlet pressure detector 8, a water outlet pipe 9, a water outlet valve 10, a water outlet pressure detector 11, a sewage discharge pipe 12 and a back flush valve 13; a motor 5 is fixed on the side wall of the tank body 1 by a motor support, after an output shaft of the motor 5 penetrates through the side wall of the tank body 1, a rotating shaft 4 is connected by a coupling, scrapers 3 are welded and fixed on the rotating shaft 4 in a bilateral symmetry manner, the scrapers 3 are arranged in a filter screen 2, a cross arm of each scraper 3 is in contact arrangement with the inner wall of the filter screen 2, the left end of the filter screen 2 is fixedly connected in the tank body 1 by a screw, and a gap is formed between the outer wall of the filter screen 2 and the inner wall; the bottom of the tank body 1 is connected with a water inlet pipe 6 in a through mode, the water inlet pipe 6 is arranged between the right end of the filter screen 2 and the inner wall of the right side of the tank body 1, and the water inlet pipe 6 is connected with a water inlet valve 7 and a water inlet pressure detector 8; the bottom of the tank body 1 is connected with a water outlet pipe 9 in a run-through manner, the water outlet pipe 9 is arranged at the position below the net wall of the filter screen 2, the water outlet pipe 9 is connected with a water outlet valve 10 and a water outlet pressure detector 11, the tank body 1 at the position opposite to the water inlet pipe 6 is connected with a sewage discharge pipe 12 in a run-through manner, and the sewage discharge pipe 12 is connected with a back flush valve 13; the device also comprises an extrusion tank body 14, an extrusion bag 15, an air compressor 17, a pressurizing water inlet pipe 18 and a pressurizing water inlet valve 19; the extrusion tank body 14 is fixed at the end part of the tank body 1, an extrusion bag 15 is arranged in the extrusion tank body 14, a cavity in the extrusion tank body 14 is connected with the output end of an air compressor 17, the bottom of the extrusion bag 15 is connected with a pressurization water inlet pipe 18 in a penetrating way, the other end of the pressurization water inlet pipe 18 penetrates through the bottom wall of the extrusion tank body 14 and then is connected with the bottom wall of the tank body 1 in a penetrating way, and the pressurization water inlet pipe 18 is connected with a pressurization water valve 19; a liquid level controller 16 is arranged in the extrusion bag 15, and the liquid level controller 16 is electrically connected with an electromagnetic valve 20 connected with an external water pipe at the inlet end of the extrusion bag 15.
The working principle of the specific embodiment is as follows: water to be filtered enters the tank body 1 from the water inlet pipe 6 and is filtered by the filter screen 2, large-particle impurities are intercepted in a space in the tank body 1 outside the filter screen 2, fine impurities in the water entering the filter screen 2 are precipitated and gathered on the inner wall of the filter screen 2, and the filtered water is discharged from the water outlet pipe 9; after filtering for a period of time, the water inlet pressure detector 8 and the water outlet pressure detector 11 detect respective pressures in real time, when the pressure difference reaches a preset value, the motor 5 is started to drive the scraper 3 to scrape impurities on the inner wall of the filter screen 2 off and fall out of the filter screen 2, meanwhile, the backwashing valve 13 is opened, backwashing water enters the tank body 1 to backwash the impurities in the backwashing water and then discharge the backwashing water through the discharge pipe 12; along with the progress of pollution discharge, the pressure in the tank body 1 is gradually reduced, the water inlet pressure detector 8 and the water outlet pressure detector 11 detect the pressure in the tank body 1, when the pressure is lower than a preset value, the air compressor 17 is started, gas is pumped into the extrusion tank body 14, the extrusion bag 15 is extruded, the water in the extrusion bag 15 is extruded into the pressurization water inlet pipe 18, the pressurization water valve 19 is opened, and the water enters the tank body 1 to increase the pressure in the tank body 1; the liquid level controller 16 detects the water level in the extrusion bag 15 in real time, when the water level is lower than a preset value, the electromagnetic valve 20 is started, the external water pipe is opened, and water is added into the extrusion bag 15.
After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:
1. the filter screen and the scraper are arranged, so that water flowing through the tank body can be effectively filtered and discharged;
2. the extrusion bag and the air compressor are arranged, so that water can be conveyed into the tank body for pressurization as required, and sufficient pressure in the tank body is ensured;
3. the liquid level controller senses the liquid level in the extrusion bag in real time and plays a role in timely water supplement.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (2)
1. A self-cleaning filter with a constant pressure function comprises a tank body (1), a filter screen (2), a scraper (3), a rotating shaft (4), a motor (5), a water inlet pipe (6), a water inlet valve (7), a water inlet pressure detector (8), a water outlet pipe (9), a water outlet valve (10), a water outlet pressure detector (11), a drain pipe (12) and a back flush valve (13); a motor (5) is fixed on the side wall of the tank body (1) through a motor support, an output shaft of the motor (5) penetrates through the side wall of the tank body (1) and then is connected with a rotating shaft (4) through a coupler, scrapers (3) are symmetrically connected to the left and right of the rotating shaft (4), the scrapers (3) are arranged in the filter screen (2), a cross arm of each scraper (3) is in contact with the inner wall of the filter screen (2), the filter screen (2) is fixed inside the tank body (1), and a gap is formed between the outer wall of each filter screen (2) and the inner wall of the tank body; the bottom of the tank body (1) is connected with a water inlet pipe (6) in a through mode, the water inlet pipe (6) is arranged between the right end of the filter screen (2) and the inner wall of the right side of the tank body (1), and the water inlet pipe (6) is connected with a water inlet valve (7) and a water inlet pressure detector (8); the bottom of the tank body (1) is connected with a water outlet pipe (9) in a run-through manner, the water outlet pipe (9) is arranged at the position below the net wall of the filter screen (2), the water outlet pipe (9) is connected with a water outlet valve (10) and a water outlet pressure detector (11), the tank body (1) at the position opposite to the water inlet pipe (6) is connected with a drain pipe (12) in a run-through manner, and the drain pipe (12) is connected with a back flush valve (13); the method is characterized in that: the device also comprises an extrusion tank body (14), an extrusion bag (15), an air compressor (17), a pressurizing water inlet pipe (18) and a pressurizing water inlet valve (19); the end part of the tank body (1) is fixed on the extruding tank body (14), an extruding bag (15) is arranged in the extruding tank body (14), an inner cavity of the extruding tank body (14) is connected with the output end of the air compressor (17), the bottom of the extruding bag (15) is connected with a pressurizing water inlet pipe (18) in a penetrating way, the other end of the pressurizing water inlet pipe (18) penetrates through the bottom wall of the extruding tank body (14) and then is connected with the bottom wall of the tank body (1) in a penetrating way, and a pressurizing water inlet valve (19) is connected onto the pressurizing water inlet pipe (.
2. A self-cleaning filter having a constant pressure function according to claim 1, wherein: a liquid level controller (16) is arranged in the extrusion bag (15), and the liquid level controller (16) is electrically connected with an electromagnetic valve (20) connected to an external water pipe at the inlet end of the extrusion bag (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022572382.9U CN213643307U (en) | 2020-11-09 | 2020-11-09 | Self-cleaning filter with constant pressure function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022572382.9U CN213643307U (en) | 2020-11-09 | 2020-11-09 | Self-cleaning filter with constant pressure function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213643307U true CN213643307U (en) | 2021-07-09 |
Family
ID=76707555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022572382.9U Expired - Fee Related CN213643307U (en) | 2020-11-09 | 2020-11-09 | Self-cleaning filter with constant pressure function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213643307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445277A (en) * | 2022-10-09 | 2022-12-09 | 金挺 | Back flush filter for sewage treatment |
-
2020
- 2020-11-09 CN CN202022572382.9U patent/CN213643307U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445277A (en) * | 2022-10-09 | 2022-12-09 | 金挺 | Back flush filter for sewage treatment |
| CN115445277B (en) * | 2022-10-09 | 2024-02-20 | 温州中伟石化设备制造有限公司 | Sewage treatment back flush 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210709 |