CN218485329U - Automatic cleaning device for filter screen of rotary filter at seawater intake - Google Patents
Automatic cleaning device for filter screen of rotary filter at seawater intake Download PDFInfo
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- CN218485329U CN218485329U CN202221313261.5U CN202221313261U CN218485329U CN 218485329 U CN218485329 U CN 218485329U CN 202221313261 U CN202221313261 U CN 202221313261U CN 218485329 U CN218485329 U CN 218485329U
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Abstract
The utility model discloses a sea water intake rotary filter screen self-cleaning device belongs to the clarification plant field. The rotary filter comprises a filter cylinder, a filter element, a filter screen, a sewage discharge cavity, a sewage discharge water outlet, a sewage discharge rotating shaft, a motor and a high-pressure washing pump, wherein the sewage discharge rotating shaft is arranged at the center of the interior of the filter element and is connected with the motor assembled outside the filter cylinder; the high-speed water flow pumped out by the high-pressure washing pump washes the reverse side of the outside of the filter element, impurities intercepted by the filter screen are discharged from the sewage discharge outlet, the impurities do not cut off during washing, microorganisms adsorbed on the inner side of the filter element are washed away and discharged from the sewage discharge outlet, and the back washing effect is improved; the differential pressure transmitter is used for detecting the differential pressure between the water inlet and the water outlet; the differential pressure transmitter, the timer, the alarm, the high-pressure washing pump and the motor are respectively connected with the controller. The automatic backwashing can be regularly and automatically carried out, and the filter screen can be automatically started to be cleaned when the water level difference between the front part and the rear part of the filter screen exceeds a set value in the backwashing interval period.
Description
Technical Field
The utility model relates to a clarification plant field, especially a sea water intake rotary filter screen self-cleaning device.
Background
The LNG receiving station rotary filter is mainly used for intercepting and automatically removing dirt such as plastic films, waterweeds, branches and clamshells in a circulating water source, so that the normal operation of a seawater pump is ensured, the filter screen becomes more and more dirty along with the increase of the operation time, the filtering capacity is reduced, the liquid level of a filtering area is also higher and even exceeds a limit value, the filter screen needs to be manually and periodically backwashed, the backwashing process is that the backwash pump takes water in a clean water tank as raw water, water is reversely conveyed to the filtering area of water purification equipment through a backwash pipeline, and the purpose of flushing the filter screen is achieved with certain backwashing strength. When the backwashing filter is applied to filtering seawater with more microbial impurities, the backwashing effect of the microbial corpse adhered to the inner side of the filter screen in the seawater is poor.
The artificial regular cleaning has the following problems: the automatic cleaning can not be achieved, and meanwhile, the pressure difference of the inlet and the outlet of the filter in the regular cleaning interval reaches a preset value and cannot be found, so that equipment failure is caused, or the filtering effect is poor.
Chinese utility model patent CN206353249U announces a clarification plant filtering area back flush control system with superpressure protection for 2017, 07 month 25, include with the back flush inlet tube that the play water end of filtering area is connected and with the blow off pipe that the intake end of filtering area is connected, be equipped with the recoil control valve on the back flush inlet tube, be equipped with the blowdown control valve on the blow off pipe, the back flush inlet tube is connected with the back flush water pump the back flush inlet tube with be provided with the piezometer on the pipe wall of filtering area play water end junction, be connected with the piezometer pipe on the piezometer pipe, install measurable hydraulic contact manometer on the piezometer pipe, the level gauge is installed to the end of intaking of filtering area, recoil control valve, blowdown control valve, back flush water pump, contact manometer, level gauge are connected with control mechanism respectively. The utility model relates to a clarification plant filtration zone back flush control system with superpressure protection, degree of automation is high, through the switch of control back flush water pump, reaches superpressure protection's purpose.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems and providing an automatic cleaning device for a filter screen of a rotary filter at a seawater intake, which can automatically clean at regular time and when the pressure difference of an inlet and an outlet of the filter reaches a preset value through a timer and a pressure difference transmitter.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
the utility model provides a sea water intake spin filter screen self-cleaning device which characterized in that includes:
the rotary filter comprises a filter cylinder, a filter element, a filter screen, a water inlet, a water outlet, a front end cover, a rear end cover, a sewage discharge cavity, a sewage discharge water outlet, a sewage discharge rotating shaft, a sewage discharge outlet, a motor and a high-pressure flushing pump, wherein the filter element is assembled inside the filter cylinder through the front end cover and the rear end cover, the filter screen is arranged on the inner wall of the filter element, the sewage discharge cavity and the sewage discharge water outlet are arranged outside the rear end cover, the sewage discharge rotating shaft is arranged at the center inside the filter element and penetrates through the sewage discharge cavity to be connected with the motor assembled outside the filter cylinder, the sewage discharge outlet is arranged at the position where the sewage discharge rotating shaft penetrates through the sewage discharge cavity, and the high-pressure flushing pump is arranged outside the filter cylinder;
the control unit comprises a controller, a timer, a differential pressure transmitter and an alarm, wherein one end of the differential pressure transmitter is connected to the water inlet of the rotary filter, the other end of the differential pressure transmitter is connected to the water outlet of the rotary filter, and the differential pressure transmitter is used for detecting the differential pressure between the water inlet and the water outlet;
the differential pressure transmitter, the timer, the alarm, the high-pressure flushing pump and the motor are respectively connected with the controller.
Preferably, the method comprises the following steps: a plurality of cleaning brushes are equipped with on the filter screen, a plurality of cleaning brushes evenly distributed in on the filter screen.
Preferably, the method comprises the following steps: the monitoring room is also arranged and is connected with the controller through a wireless communication module.
Preferably, the method comprises the following steps: the wireless communication module is any one of a Bluetooth module, a WIFI module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module.
Preferably, the method comprises the following steps: and a pipeline between the high-pressure flushing pump and the filter cylinder is also provided with a flushing valve and a relay, the flushing valve is connected with the relay, and the relay is connected with the controller.
The utility model relates to an automatic cleaning device for a filter screen of a rotary filter at a seawater intake, which adopts a rotary filter and a control unit,
the rotary filter comprises a filter cylinder, a filter element, a filter screen, a water inlet, a water outlet, a front end cover, a rear end cover, a sewage discharge cavity, a sewage discharge water outlet, a sewage discharge rotating shaft, a motor and a high-pressure flushing pump, wherein the filter element is assembled inside the filter cylinder through the front end cover and the rear end cover, the filter screen is arranged on the inner wall of the filter element, the sewage discharge cavity and the sewage discharge water outlet are arranged outside the rear end cover, the sewage discharge rotating shaft is arranged at the center inside the filter element and penetrates through the sewage discharge cavity to be connected with the motor assembled outside the filter cylinder, the sewage discharge port is arranged at the position where the sewage discharge rotating shaft penetrates through the sewage discharge cavity, and the high-pressure flushing pump is arranged outside the filter cylinder;
the control unit comprises a controller, a timer, a differential pressure transmitter and an alarm, wherein one end of the differential pressure transmitter is connected to the water inlet of the rotary filter, the other end of the differential pressure transmitter is connected to the water outlet of the rotary filter, and the differential pressure transmitter is used for detecting the differential pressure between the water inlet and the water outlet;
the differential pressure transmitter, the timer, the alarm, the high-pressure flushing pump and the motor are respectively connected with the controller.
After the motor and the high-pressure washing pump are started, the motor drives the sewage discharge rotating shaft to rotate, high-speed water flow pumped by the high-pressure washing pump washes the reverse side of the outside of the filter element, impurities intercepted by the filter screen are discharged from the sewage discharge water outlet, the impurities are not cut off during washing, microorganisms adsorbed on the inner side of the filter element are washed away and discharged from the sewage discharge outlet, the filter screen is washed clean, and the back washing effect of a filter for filtering seawater is improved; the filter screen of the rotary filter can be automatically and regularly washed by back washing according to the set period of the timer, and the filter screen can be automatically started to be washed when the water level difference between the front and the back of the filter screen exceeds a set value in the back washing interval period.
Drawings
Fig. 1 is a schematic block diagram of the automatic cleaning device for the filter screen of the rotary filter at the seawater intake of the utility model.
Fig. 2 is the structural schematic diagram of the rotary filter in the automatic cleaning device for the filter screen of the rotary filter at the seawater intake of the utility model.
In the attached drawing, 11-filter cartridge, 12-filter core, 13-filter screen, 14-water inlet, 15-water outlet, 16-front end cover, 17-rear end cover, 21-blowdown cavity, 211-blowdown outlet, 22-blowdown water outlet, 23-blowdown rotating shaft, 24-motor, 25-high pressure washing pump, 26-cleaning brush, 271-flushing valve, 272-relay, 3-controller, 4-timer, 5-differential pressure transmitter, 6-alarm, 7-monitoring room and 8-wireless communication module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.
The following describes the embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model discloses
The utility model provides a sea water intake spin filter screen self-cleaning device which characterized in that includes:
the rotary filter comprises a filter cartridge 11, a filter element 12, a filter screen 13, a water inlet 14, a water outlet 15, a front end cover 16, a rear end cover 17, a sewage discharge cavity 21, a sewage discharge water outlet 22, a sewage discharge rotating shaft 23, a sewage discharge outlet 211, a motor 24 and a high-pressure washing pump 25, wherein the filter element 12 is assembled inside the filter cartridge 11 through the front end cover 16 and the rear end cover 17, the filter screen 13 is arranged on the inner wall of the filter element 12, the sewage discharge cavity 21 and the sewage discharge water outlet 22 are arranged outside the rear end cover 17, the sewage discharge rotating shaft 23 is arranged at the center inside of the filter element 12 and penetrates through the sewage discharge cavity 21 to be connected with the motor 24 assembled outside the filter cartridge 11, the sewage discharge outlet 211 is arranged at the position where the sewage discharge rotating shaft 23 penetrates through the sewage discharge cavity 21, and the high-pressure washing pump 25 is arranged outside the filter cartridge 11;
after the motor 24 and the high-pressure washing pump 25 are opened, the motor 24 drives the sewage discharge rotating shaft 23 to rotate, high-speed water flow pumped by the high-pressure washing pump 25 washes the reverse side of the outside of the filter element 12, impurities intercepted by the filter screen 13 are discharged from the sewage discharge water outlet 22, the flow is not cut off during washing, microorganisms adsorbed on the inner side of the filter element 12 are washed away and discharged from the sewage discharge outlet 211, the filter screen 13 is washed clean, and the back washing effect of the seawater filtering filter is improved.
As shown in fig. 1, the control unit comprises a controller 3, a timer 4, a differential pressure transmitter 5 and an alarm 6, wherein one end of the differential pressure transmitter 5 is connected to a water inlet 14 of the rotary filter, the other end of the differential pressure transmitter 5 is connected to a water outlet 15 of the rotary filter, and the differential pressure transmitter 5 is used for detecting the differential pressure between the water inlet 14 and the water outlet 15;
the differential pressure transmitter 5, the timer 4, the alarm 6, the high-pressure flushing pump 25 and the motor 24 are respectively connected with the controller 3.
The filter screen 13 of the rotary filter can be automatically back washed and cleaned at regular time according to the set period of the timer 4, and the filter screen 13 can be automatically started and cleaned when the water level difference between the front and the back of the filter screen 13 exceeds a set value in the back washing interval period.
The alarm 6 comprises a light alarm and a sound alarm, when the periodic backwashing or potential difference exceeds the backwashing time for 1 minute, the alarm 6 gives out a sound and light alarm to prompt people around the filter screen 13, and the filter screen 13 does not need to be backwashed close to the backwashing time; the light alarm is lighted during the backflushing period until the light is extinguished after the backflushing is finished; the sound alarm is only continued until the filter screen 13 is rotated to start operation and then automatically silenced.
A plurality of cleaning brushes 26 are equipped with on the filter screen 13, a plurality of cleaning brushes 26 evenly distributed in on the filter screen 13. Used for strengthening the cleaning force.
And a monitoring room 7 is also arranged, and the monitoring room 7 is connected with the controller 3 through a wireless communication module 8. The running state of the rotary filter is monitored in a central control room.
Wireless communication module 8 is any one of bluetooth module, WIFI module, GSM module, GPRS module, CDMA2000 module, WCDMA module, TD-SCDMA module, zigbee module or loRa module.
A flushing valve 271 and a relay 272 are further arranged on a pipeline between the high-pressure flushing pump 25 and the filter cartridge 11, the flushing valve 271 is connected with the relay, and the relay is connected with the controller 3.
The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.
Claims (5)
1. The utility model provides a sea water intake spin filter screen self-cleaning device which characterized in that includes:
the rotary filter comprises a filter cylinder, a filter element, a filter screen, a water inlet, a water outlet, a front end cover, a rear end cover, a sewage discharge cavity, a sewage discharge water outlet, a sewage discharge rotating shaft, a sewage discharge outlet, a motor and a high-pressure flushing pump, wherein the filter element is assembled inside the filter cylinder through the front end cover and the rear end cover;
the control unit comprises a controller, a timer, a differential pressure transmitter and an alarm, wherein one end of the differential pressure transmitter is connected to the water inlet of the rotary filter, the other end of the differential pressure transmitter is connected to the water outlet of the rotary filter, and the differential pressure transmitter is used for detecting the differential pressure between the water inlet and the water outlet;
the differential pressure transmitter, the timer, the alarm, the high-pressure washing pump and the motor are respectively connected with the controller.
2. The automatic cleaning device for the filter screen of the seawater intake rotary filter according to claim 1, which is characterized in that: a plurality of cleaning brushes are equipped with on the filter screen, a plurality of cleaning brushes evenly distributed in on the filter screen.
3. The automatic cleaning device for the filter screen of the seawater intake rotary filter according to claim 1, which is characterized in that: the monitoring room is also arranged and is connected with the controller through a wireless communication module.
4. The automatic cleaning device for the filter screen of the rotary filter of the seawater intake according to claim 3, wherein: the wireless communication module is any one of a Bluetooth module, a WIFI module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module.
5. The automatic cleaning device for the filter screen of the seawater intake rotary filter according to claim 1, which is characterized in that: and a pipeline between the high-pressure flushing pump and the filter cylinder is also provided with a flushing valve and a relay, the flushing valve is connected with the relay, and the relay is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221313261.5U CN218485329U (en) | 2022-05-27 | 2022-05-27 | Automatic cleaning device for filter screen of rotary filter at seawater intake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221313261.5U CN218485329U (en) | 2022-05-27 | 2022-05-27 | Automatic cleaning device for filter screen of rotary filter at seawater intake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218485329U true CN218485329U (en) | 2023-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221313261.5U Active CN218485329U (en) | 2022-05-27 | 2022-05-27 | Automatic cleaning device for filter screen of rotary filter at seawater intake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218485329U (en) |
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2022
- 2022-05-27 CN CN202221313261.5U patent/CN218485329U/en active Active
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