CN115804980B - Self-cleaning filter for ship ballast water treatment system - Google Patents

Abstract

The invention relates to the technical field of ship ballast water, in particular to a self-cleaning filter for a ship ballast water treatment system. The ballast water filtering device solves the problems that the ballast water filtering efficiency is low, and dead angles which cannot be cleaned exist during cleaning. The utility model provides a self-cleaning filter for ship ballast water treatment system, including filtering the casing, filtering casing upper end fixedly connected with lid is equipped with the inlet tube on the lid, and filtering casing lower part is equipped with the water purification pipe, and filtering casing bottom fixedly connected with blow off pipe filters casing bottom fixedly connected with support frame, and filtering casing inside is provided with the filtration subassembly that is used for filtering ballast water, and filtering casing runs through and is provided with the clearance part that is used for clearing up the filtration subassembly, and clearance part is with filtering casing inside cavity separation for waiting filter chamber and blow off chamber. According to the invention, seawater is filtered through the filter cartridge and the multi-layer annular filter frame which are connected with each other, wherein the gaps are of a sector structure, so that the filtering effect is improved, and the influence on filtering caused by dead angles during cleaning is prevented.

Description

Self-cleaning filter for ship ballast water treatment system

technical field

The invention relates to the technical field of ship ballast water, in particular to a self-cleaning filter for a ship ballast water treatment system.

Background technique

The ship's ballast water filter is a filter device for filtering and cleaning seawater. It is installed on ships sailing in the ocean. Its main function is to remove small microorganisms, bacteria, floating objects, etc. in the seawater when the ship is loading seawater. Filter out to prevent the ballast water from polluting the local environment and destroying the ecosystem when it is discharged in other places.

When the existing ship ballast water filter is working, the seawater is introduced into the filter, and the seawater is filtered through the filter cartridge arranged on the inner wall, and then the purified water is transported into the ballast water cavity by pumping. The traditional filter cartridge The filter area is limited, the required cleaning interval is short and the frequency is frequent, and because impurities will adhere to any place in the filter, including the sewage pipe, there will be a cleaning dead angle, which will affect the environment inside the filter.

Contents of the invention

In order to overcome the technical problems raised in the above technical background, the present invention provides a self-cleaning filter for high-efficiency filtering and self-cleaning ship ballast water treatment system.

The technical embodiment of the present invention is: a self-cleaning filter for ship ballast water treatment system, including a filter housing, the upper end of the filter housing is fixedly connected with a cover, the cover is provided with a water inlet pipe, and the lower part of the filter housing is There is a water purification pipe, the bottom of the filter housing is fixedly connected with a sewage pipe, and the bottom of the filter housing is fixedly connected with a support frame. It is characterized in that: it also includes a filter assembly, and the filter assembly for filtering ballast water is arranged in the filter housing Inside, the filter shell is provided with a cleaning part for cleaning the filter assembly. The cleaning part divides the inner cavity of the filter shell into a chamber to be filtered and a sewage discharge chamber. The filter assembly is composed of an annular filter frame, a connecting frame and a filter cartridge. The filter shell The body is provided with an annular filter frame whose diameter gradually decreases from outside to inside, and the outermost ring filter frame is fixedly connected with the inner wall of the filter housing, wherein an annular filter cavity is arranged inside the ring filter frame, and a filter cartridge is arranged on the central axis of the filter housing , the filter cartridge is provided with a cylindrical filter chamber, and the adjacent annular filter frames are connected to each other through a symmetrically fixed communication frame, and the filter cartridge is fixed and communicated with the adjacent annular filter frames through the communication frame, wherein The cylindrical filter cavity in the filter cartridge communicates with the annular filter cavity in the innermost annular filter frame through the connecting frame, the lower part of the outermost annular filter frame is provided with a filter cavity through hole, and the outermost annular filter frame and the filter housing pass through The through hole of the filter cavity is communicated with the water purification pipe.

More preferably, the side parts of the filter housing and the cover are respectively provided with viewing windows, and the viewing windows are used to observe the attachment of impurities in the filter assembly and the sewage chamber.

More preferably, the horizontal section of the connecting frame is set as a fan structure, and the connecting frame and the adjacent ring-shaped filter frame form a fan-shaped filtering channel, which is used to reduce cleaning dead ends.

More preferably, the horizontal section of each connecting frame is small on the inside and large on the outside, and the horizontal section of adjacent connecting frames is small on the inside and large on the outside, so as to increase the flow rate from inside to outside.

More preferably, the cleaning component for cleaning the impurities in the annular filter frame and the filter cartridge includes a reciprocating motor, the reciprocating motor is fixedly mounted on the support frame, and the output end of the reciprocating motor is fixedly connected with a first filter that is rotatably matched with the filter housing. A transmission shaft, the upper part of the first transmission shaft is a hollow structure, and the side wall of the hollow part is opened in the circumferential direction, the upper end of the first transmission shaft is fixedly connected with a partition that is rotatably matched with the filter housing, and a water collection chamber is arranged inside the partition. The separator is fixedly connected with evenly spaced cleaning pipes, and the cleaning pipes are distributed in the gaps inside the filter assembly. The cleaning pipes are symmetrically penetrated with T-shaped chutes, and the water collection chamber is connected with the chamber to be filtered through the cleaning pipes. The chamber is connected with the sewage chamber through the upper part of the first transmission shaft. The end of the cleaning pipe away from the partition is fixedly connected with a fixed rod. A cavity for transmission is arranged in the fixed rod, and the cleaning pipe adjacent to the cavity of the fixed rod penetrates into the Inside, the bottom surface of the fixing rod is located on the upper side of the annular filter frame, the communication frame and the filter cartridge.

More preferably, the separator is provided with a sewage suction hole around the penetration of the cleaning pipe, and the sewage suction hole communicates with the gap formed by the water collection cavity, the annular filter frame and the filter cylinder.

More preferably, it also includes a pretreatment component, the pretreatment component is arranged through the filter housing, and the pretreatment component is used to clean up the excessively thick adhered impurities on the annular filter frame and the filter cartridge, and the pretreatment component includes a steering The motor, the steering motor is fixedly installed on the support frame, the output end of the steering motor is fixedly installed with an output gear, the first transmission shaft is rotated outside and is provided with a transmission sleeve that penetrates and rotates with the filter housing, and one end of the transmission sleeve is fixedly connected with the output The first external gear ring for gear meshing transmission, the transmission sleeve is fixedly connected with the sealing shell on the upper side of the first external gear ring, the upper part of the transmission sleeve is provided with the second external gear ring, and the second external gear ring is located in the sealing shell Inside the body, the upper end of the sealed casing is fixedly connected with a fixed sleeve fixedly connected with the partition, and the inside of the sealed casing is symmetrically provided with a second transmission shaft, which passes through the fixed sleeve and is rotatably connected with the partition. The shaft is fixedly connected with a transmission gear meshing with the second external gear ring. One end of the second transmission shaft away from the transmission gear is connected to the partition through a belt drive and the other end is rotatably connected to the spiral scraper of the fixed rod. The inside of the scraper is close to the cleaning pipe, and the outside of the spiral scraper is close to the ring-shaped filter frame and the outer wall of the filter cartridge.

More preferably, it also includes a scraping assembly for scraping off the impurities on the side wall of the chamber to be filtered and the sewage chamber, the scraping assembly includes an inner gear ring, the inner gear ring is matched with the transmission gear, and the scraper in the sewage chamber It is fixedly connected with the internal gear ring through a special-shaped connecting piece, which runs through the sealed casing, and the special-shaped connecting piece is rotationally connected with the sealed casing and the sealing plate. The scraper in the sewage chamber runs through the sealed casing through a fixed connecting rod, and the scraper in the sewage chamber The sealing shell and the sealing plate are rotatably connected, and the end of the scraper in the sewage chamber away from the transmission gear is close to the side wall of the sewage chamber. The adjacent cleaning pipe in the cavity of the fixed rod is driven by a pulley belt, and the other two ends of the T-shaped fixing frame are fixedly connected with a scraper for the filter cavity, and the scraper for the filter cavity is bonded to the side wall of the filter cavity.

More preferably, it also includes a third transmission shaft, the lower end of the third transmission shaft is affixed to the spiral scraper, the upper end of the third transmission shaft is affixed to a reciprocating screw, the reciprocating screw is rotatably mounted on the fixed rod, and the reciprocating screw The outside of the bar is provided with a matching threaded slider, and the side of the threaded slider is symmetrically provided with connecting rods. The connecting rods are provided with a row of wing plates, and the distance between every two adjacent wing plates gradually decreases from top to bottom. , The wing plate is slidingly matched with the T-shaped chute, which is used to improve the extraction pressure and extraction effect.

More preferably, it also includes an oblique water guide plate, and the oblique water guide plate is fixed on the end of the scraper of the chamber to be filtered away from the fixing rod.

Compared with prior art, the present invention has following advantage:

1. The present invention utilizes multi-layer interconnected ring-shaped filter frames for filtration, increases the filter area of the filter for seawater filtration, and improves filtration efficiency.

2. Use the spiral scraper to pre-scrape the thicker impurities attached to the outer wall of the annular filter frame and filter cartridge, and at the same time clean the outer wall of the cleaning tube, leaving a thin layer on the outer wall of the annular filter frame and filter cartridge It is convenient for the cleaning pipe to extract the impurities attached to the ring filter frame and the outer wall of the filter cartridge, and the peeled impurities are extracted through the openings set on the partition, so as to improve the filtering effect of the filter and prolong the service life of the filter.

3. Utilize the adjacent annular filter frame, the fan structure between the filter cartridge and the nearest annular filter frame, and cooperate with the circumferential reciprocating movement of the cleaning pipe to reduce the dead angle of cleaning.

4. Use the scraper in the sewage chamber and the scraper in the chamber to be filtered to scrape and clean the chamber to be filtered and the sewage chamber that cannot be cleaned for a long time, so as to reduce the problem that bacteria in seawater multiply in places that cannot be cleaned and affect the use of the filter.

5. Utilize the wing plates whose adjacent spacing gradually decreases from top to bottom to reciprocate up and down in the T-shaped chute to balance the upper and lower extraction pressures, change the opening position, and improve the cleaning effect.

6. Use the inclined water guide plate to provide diversion and guidance for seawater, so that the attachment of impurities in the filter components is more uniform.

Description of drawings

Fig. 1 is a kind of three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of a three-dimensional structure of a filter housing in section according to the present invention;

Fig. 3 is a structural schematic diagram of the positional relationship between the filter assembly and the cleaning assembly of the present invention;

Fig. 4 is a schematic diagram of a partially cut-away three-dimensional structure of a filter assembly of the present invention;

Fig. 5 is a schematic diagram of a partially cut-away three-dimensional structure of the filter housing of the present invention;

Fig. 6 is a schematic diagram of a part of the three-dimensional structure of the cleaning assembly of the present invention;

Fig. 7 is a schematic diagram of an enlarged three-dimensional structure at A in Fig. 6 of the present invention;

Fig. 8 is a perspective view of another part of the cleaning assembly of the present invention;

Fig. 9 is a schematic diagram of a cross-sectional three-dimensional structure at B in Fig. 8 of the present invention;

Fig. 10 is a schematic diagram of explosion at the cleaning pipe of the present invention.

The marks of each component in the accompanying drawings are as follows:

1. Filter housing, 2. Cover body, 3. Water inlet pipe, 4. Water purification pipe, 5. Sewage discharge pipe, 6. Support frame, 7. View window, 8. Filter assembly, 801, Ring filter frame, 802, Connected Frame, 803, filter cartridge, 804, cylindrical filter cavity, 805, annular filter cavity, 806, filter cavity through hole, 9, cleaning component, 901, reciprocating motor, 902, first transmission shaft, 903, partition, 904 , cleaning pipe, 905, catchment chamber, 906, T-shaped chute, 907, fixed rod, 10, pretreatment component, 1001, steering motor, 1002, output gear, 1003, transmission sleeve, 1004, first external gear Ring, 1005, sealing shell, 1006, second external gear ring, 1007, transmission gear, 1008, fixed sleeve, 1009, sealing plate, 1010, second transmission shaft, 1011, belt transmission part, 1012, spiral scraper Plate, 11, scraper assembly, 1101, inner gear ring, 1102, sewage chamber scraper, 1103, special-shaped connector, 1104, T-shaped fixing frame, 1105, to-be-filtered chamber scraper, 1106, oblique water guide plate, 12 , the third drive shaft, 13, reciprocating screw, 14, threaded slider, 15, connecting rod, 16, wing plate.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

A self-cleaning filter for a ship ballast water treatment system, as shown in Figure 1-Figure 10, includes a filter housing 1, the upper end of the filter housing 1 is fixedly connected to a cover 2 through a flange, and the cover 2 passes through The flange is connected with a water inlet pipe 3, the lower right side of the filter housing 1 is provided with a clean water pipe 4, the right side of the bottom of the filter housing 1 is fixedly connected with a sewage pipe 5, and the bottom of the filter housing 1 is fixedly connected with a support frame 6, the support frame 6 is used to support the whole device. The filter housing 1 is provided with a filter assembly 8 for filtering ballast water. The filter housing 1 is provided with a cleaning component 9 for cleaning the filter assembly 8. The cleaning component 9 will filter the inside of the filter housing 1. The chamber body is divided up and down into the upper chamber to be filtered and the lower chamber for sewage discharge.

The filter assembly 8 is composed of an annular filter frame 801, a connecting frame 802 and a filter cartridge 803. The filter housing 1 is provided with a three-layer annular filter frame 801 whose diameter gradually becomes smaller from the outside to the inside. The outer wall of the outermost ring filter frame 801 and The inner wall of the filter housing 1 is fixedly connected, wherein an annular filter chamber 805 is arranged in the annular filter frame 801, a filter cartridge 803 is arranged at the central axis of the filter housing 1, and a cylindrical filter chamber 804 is arranged in the filter cartridge 803, and the adjacent ring Between the filter frames 801, the annular filter cavity 805 is connected through the connecting frame 802 fixed on the left and right sides, and the filter cartridge 803 is fixed and communicated with the adjacent annular filter frame 801 through the connecting frame 802, and the whole is a ring filter from outside to inside. Frame 801, communication frame 802, annular filter frame 801, communication frame 802, annular filter frame 801, communication frame 802 and filter cartridge 803, wherein the cylindrical filter cavity 804 in the filter cartridge 803 is connected to the innermost filter chamber through the communication frame 802 The annular filter cavity 805 in the layer annular filter frame 801 is connected, the horizontal section of the connected frame 802 is a fan structure, the horizontal section of each connected frame 802 is small inside and large outside, and the horizontal section of the adjacent connected frame 802 is small inside and large outside, It is used to increase the flow rate from inside to outside. The connecting frame 802 and the adjacent annular filter frame 801 form a fan-shaped filter channel, which is used to reduce the cleaning dead space. The bottom right side of the outermost ring filter frame 801 is provided with a filter cavity through hole 806. The outermost annular filter frame 801 communicates with the filter housing 1 with the water purification pipe 4 through the through hole 806 in the filter cavity.

When the filter assembly 8 is filtering, the seawater is passed into the water inlet pipe 3, and the pressure discharges the seawater into the filter assembly 8 and is pressed into the cylindrical filter chamber 804 and the annular filter chamber 805 through the annular filter frame 801 and the filter cartridge 803 to realize the treatment of the seawater. The filtered clean water will be collected through the connecting frame 802, and then connected to the water pump 4 through the through hole 806 of the filter cavity to be drawn out. The utilization efficiency of the inner space of the filter housing 1 and the filtration efficiency of seawater are improved through the multi-layer filter frame and the filter cartridge 803 arranged in the circumferential direction.

As shown in Figure 1, the lower right side of the filter housing 1 and the middle part of the right side of the cover body 2 are respectively provided with a window 7, through the window 7, it is convenient to observe the attachment of impurities on the filter assembly 8 and the inner wall of the sewage chamber, so as to judge whether it needs to be cleaned or not. Whether the cleanup process is complete.

As shown in Figure 6 and Figure 8, the cleaning part 9 that is used to clean up the impurities of the annular filter frame 801 and the filter cartridge 803 includes a reciprocating motor 901, and the reciprocating motor 901 is fixedly installed on the support frame 6, and the output end of the reciprocating motor 901 is fixed. Connected with the first transmission shaft 902 on the central axis that rotates with the filter housing 1, the upper part of the first transmission shaft 902 is a hollow structure, and the side wall of the hollow part is opened in the circumferential direction, which is used to connect the water collection chamber and the sewage chamber Through, the upper end of the first transmission shaft 902 is fixedly connected with a partition 903 that is rotatably matched with the filter housing 1, and the partition 903 is provided with a water collection cavity 905, and the partition 903 is fixedly connected with 3 A cleaning pipe 904, the lower end of the cleaning pipe 904 is fixedly connected with the partition plate 903, the cleaning pipe 904 is distributed in the gap inside the filter assembly 8, the partition plate 903 is provided with a suction hole around the place where the cleaning pipe 904 penetrates, and the annular filter frame 801 The gap formed with the filter cartridge 803 communicates with the water collection chamber 905 through the sewage suction hole, which is used to extract the impurities accumulated under the peeling and improve the extraction efficiency. The water chamber 905 communicates with the chamber to be filtered through the cleaning pipe 904, the water collection chamber 905 communicates with the sewage chamber through the upper part of the first transmission shaft 902, and the upper end of the cleaning pipe 904 is fixedly connected with a fixed rod 907, which is provided with a drive The cavity, the cleaning pipe 904 adjacent to the cavity of the fixed rod 907 vertically penetrates into the cavity, and the bottom surface of the fixed rod 907 is located on the upper side of the annular filter frame 801, the communication frame 802 and the filter cartridge 803.

When the filter assembly 8 is cleaned, the operator starts the reciprocating motor 901, and at the same time starts the water pump connected at the sewage pipe 5, and when the reciprocating motor 901 is started, the output shaft drives the first drive shaft 902 to rotate circularly, and then Drive the clapboard 903 to reciprocate in the circumferential direction, and at the same time make the cleaning pipe 904 reciprocate in the fan-shaped gap formed between the annular filter frame 801 and the filter cylinder 803, and the ring-shaped filter frame 801 and the filter cylinder 803 are attached to the outer wall of the filter screen. Impurities are sucked back and forth sideways to achieve the effect of exfoliation of impurities by backwashing without stopping the overall filtering work. At the same time, because the cross-section of the gap is a fan structure, the cleaning pipe 904 reciprocates to eliminate the need for cleaning. The dead corner is better to clean up the attached impurities. The impurities are drawn into the sewage discharge chamber through the T-shaped chute 906 with vertical openings on the left and right sides of the cleaning pipe 904, the water collection chamber 905 and the circumferential opening on the upper end of the first transmission shaft 902, and then pass through Sewage pipe 5 extracts impurities.

Example 2

On the basis of Embodiment 1, as shown in Fig. 6, Fig. 7 and Fig. 10, a pretreatment component 10 is also included, and the pretreatment component 10 is arranged through the central axis of the filter housing 1, and the pretreatment component 10 is used for The excessively thick attached impurities on the outer wall of the filter screen of the annular filter frame 801 and the filter cartridge 803 are cleaned. The pretreatment unit 10 includes a steering motor 1001, which is fixedly installed on the support frame 6, and the output end of the steering motor 1001 is fixedly installed with an output Gear 1002, the first transmission shaft 902 is externally rotated and provided with a transmission sleeve 1003 that penetrates through the filter housing 1 and rotates with the filter housing 1. The lower end of the transmission sleeve 1003 is fixedly connected with a first external gear ring 1004. The first external gear The ring 1004 is meshed with the output gear 1002 for transmission. The transmission sleeve 1003 is fixedly connected with a sealing shell 1005 on the upper side of the first external gear ring 1004. The upper sealing shell 1005 of the transmission sleeve 1003 is provided with a second external gear ring 1006. Two fixed sleeves 1008 fixedly connected to the partition 903 are fixedly connected to the front and rear sides of the first transmission shaft 902 at the upper end of the sealed housing 1005. The two fixed sleeves 1008 are symmetrically arranged on the sealed housing 1005, and the inside of the sealed housing 1005 A second transmission shaft 1010 is symmetrically arranged front and rear, and the second transmission shaft 1010 is located inside the fixed sleeve 1008. The second transmission shaft 1010 is rotationally connected with the partition plate 903. 1006 meshes with the transmission gear 1007, the lower end of the spiral scraper 1012 is rotatably connected to the partition 903, the upper end of the second transmission shaft 1010 cooperates with the lower end of the spiral scraper 1012 through the belt transmission part 1011, and the upper end of the spiral scraper 1012 is fixed to the The rod 907 is rotatably connected, the inner side of the spiral scraper 1012 is close to the outer wall of the cleaning pipe 904, and there is a gap between the outer wall of the spiral scraper 1012 and the annular filter frame 801 and the outer wall of the filter cylinder 803.

When cleaning the filter assembly 8, the operator starts the steering motor 1001 at the same time, and the steering motor 1001 transmits the power to the first external gear ring 1004 affixed to the lower side of the transmission sleeve 1003 through the output gear 1002 on the output shaft, and then the The power is transmitted through the transmission sleeve 1003 to the second external gear ring 1006 affixed to the upper side of the transmission sleeve 1003, and the second external gear ring 1006 is connected to The power is transmitted to the belt transmission part 1011, driven by the belt transmission part 1011, the outside of the six spiral scrapers 1012 pre-treat and scrape the impurities distributed on the thicker side walls of the annular filter frame 801 and filter cylinder 803, and for Prevent impurities from being squeezed and blocked by direct scraping to block the ring-shaped filter frame 801 and filter cartridge 803, thus leaving a thin layer of impurities, reducing the pressure of the cleaning component 9 during work, and at the same time passing the inner side of the spiral scraper 1012 against the cleaning tube The outer wall of 904 is cleaned to improve the overall cleaning effect. After pretreatment, the thicker impurities will accumulate downward due to the impact of gravity and water flow. Through the holes opened around the penetration of the cleaning pipe 904 and the partition 903, the accumulated impurities will be removed during extraction. Impurities are extracted synchronously to improve the cleaning efficiency of impurities.

As shown in Figure 6 and Figure 8, it also includes a scraping assembly 11 for scraping off the impurities on the side wall of the chamber to be filtered and the sewage chamber, the scraping assembly 11 includes an inner gear ring 1101, the inner gear ring 1101 and the transmission gear 1007 cooperates with the transmission, the sewage chamber scraper 1102 and the inner gear ring 1101 are fixedly connected through the special-shaped connecting piece 1103, the special-shaped connecting piece 1103 runs through the sealing shell 1005, the special-shaped connecting piece 1103 is connected to the sealing shell 1005 in rotation, and the special-shaped connecting piece 1103 is connected to the sealing shell 1005. The plate 1009 is rotatably connected, the end of the sewage chamber scraper 1102 away from the special-shaped connector 1103 is close to the side wall of the sewage chamber, the central axis of the T-shaped fixing frame 1104 penetrates and is rotatably connected to the fixed rod 907 with the cleaning pipe 904 through the pulley belt In the cavity of the cavity, the other two ends of the T-shaped fixing frame 1104 are fixedly connected with the scraper 1105 of the cavity to be filtered, and the scraper 1105 of the cavity to be filtered is attached to the inner wall of the cavity to be filtered.

When cleaning the filter assembly 8, the transmission gear 1007 transmits the power to the scraper 1102 of the sewage chamber through the inner gear ring 1101, so that the scraper 1102 of the sewage chamber can perform circumferential cleaning on the impurities on the side wall of the sewage chamber that cannot be cleaned for a long time. Scraping prevents the proliferation of biological impurities in impurities and brings burdens to ballast water filtration. The upper end of the spiral scraper 1012 located in the hollow groove of the fixed rod 907 transmits power to the T-shaped fixed frame 1104 through the pulley belt. The T-shaped fixed frame 1104 is rotated in the circumferential direction, and then two front and back symmetrically arranged scrapers 1105 for the filter cavity to be filtered through the two sides of the T-shaped fixed frame 1104 are fixedly connected to scrape the side wall of the filter cavity in the circumferential direction to prevent impurities from adhering, accumulation and multiplication.

As shown in Figure 10, it also includes a third transmission shaft 12, the lower end of the third transmission shaft 12 is fixedly connected with the spiral scraper 1012, and the upper end of the third transmission shaft 12 is fixedly connected with a reciprocating lead screw 13, and the reciprocating lead screw 13 is rotated and installed. On the fixed rod 907, the threaded slider 14 matched with the reciprocating lead screw 13 is arranged on the outside, and the front and rear sides of the threaded slider 14 are symmetrically provided with connecting rods 15 in the vertical direction. The connecting rod 15 is fixedly connected to the outer side of the threaded slider 14 with a wing plate 16 whose spacing gradually decreases from top to bottom. The wing plate 16 slides and fits with the T-shaped chute 906 to improve the extraction pressure and extraction effect. .

When the filter assembly 8 is cleaned, in order to increase the extraction pressure of impurities, the third drive shaft 12 is rotated together with the reciprocating screw 13 fixedly connected to the upper end, so that the threaded slider 14 that rotates and cooperates with the reciprocating screw 13 reciprocates up and down Move, and then through the connecting rod 15, the wing plate 16 in the T-shaped chute 906 on the front and rear sides of the cleaning pipe 904 slides up and down. The distance between the wing plates 16 gradually decreases from top to bottom, which is used to improve the problem of uneven extraction of impurities caused by improper pressure transmission. The pressure of the cleaning pipe 904 is increased through the wing plates 16 to improve the cleaning effect. The adjustment of the position when the wing plate 16 moves up and down changes the opening position of the cleaning pipe 904, making the cleaning more comprehensive.

As shown in Figure 8, it also includes an inclined water guide plate 1106, which is fixed on the upper end of the scraper 1105 of the cavity to be filtered. When sea water enters the filter assembly 8 through the water inlet pipe 3, the inclined water guide plate 1106 will The seawater is guided to divert the incoming seawater, preventing the filter cartridge 803 and the ring-shaped filter frame 801 in the middle from being the main filter area, causing impurities to accumulate too much in the middle, and making the impurities attached to the filter assembly 8 more uniform Effect.

While the present disclosure has been shown and described with reference to certain exemplary embodiments thereto, it should be understood by those skilled in the art that other modifications may be made without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Various changes in form and details have been made to this disclosure. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims (2)

1. The utility model provides a self-cleaning filter for ship ballast water treatment system, is including filtering casing (1), filtering casing (1) upper end fixedly connected with lid (2), is equipped with inlet tube (3) on lid (2), and filtering casing (1) lower part is equipped with water purification pipe (4), and filtering casing (1) bottom fixedly connected with blow off pipe (5), filtering casing (1) bottom fixedly connected with support frame (6), characterized by: the filter assembly (8) is used for filtering ballast water, the filter assembly (8) is arranged inside the filter shell (1), the filter shell (1) is penetrated and provided with a cleaning component (9) used for cleaning the filter assembly (8), the cleaning component (9) divides the inner cavity of the filter shell (1) into a cavity to be filtered and a pollution discharge cavity, the filter assembly (8) consists of an annular filter frame (801), a communication frame (802) and a filter cartridge (803), the filter shell (1) is internally provided with the annular filter frame (801) with gradually reduced outer-to-inner diameter, the outermost annular filter frame (801) is fixedly connected with the inner wall of the filter shell (1), an annular filter cavity (805) is arranged in the annular filter frame (801), the central axis of the filter shell (1) is provided with the filter cartridge (803), the annular filter cavity (804) is arranged in the filter cartridge (803), the annular filter cavity (805) is communicated between the adjacent annular filter frames (801) through the communication frame (802) which are fixedly connected with the adjacent annular filter frame (801) through the communication frame (803), the annular filter cavity (801) is communicated with the annular filter cavity (805) through the annular filter frame (803), the lower part of the outermost annular filter frame (801) is provided with a filter cavity through hole (806), and the outermost annular filter frame (801) is communicated with the filter shell (1) through the filter cavity through hole (806) and the water purifying pipe (4);

the cleaning component (9) for cleaning the impurities of the annular filter frame (801) and the filter cartridge (803) comprises a reciprocating motor (901), the reciprocating motor (901) is fixedly arranged in a supporting frame (6), the output end of the reciprocating motor (901) is fixedly connected with a first transmission shaft (902) which is in running fit with the filter housing (1), the upper part of the first transmission shaft (902) is of a hollow structure, the side wall of the hollow part is circumferentially opened, the upper end of the first transmission shaft (902) is fixedly connected with a partition plate (903) which is in running fit with the filter housing (1), a water collecting cavity (905) is arranged in the partition plate (903), cleaning pipes (904) which are uniformly and alternately distributed are fixedly connected to the partition plate (903), the cleaning pipes (904) are distributed in gaps inside the filter assembly (8), T-shaped sliding grooves (906) are symmetrically arranged in a penetrating mode, the water collecting cavity (905) is communicated with a cavity to be filtered through the cleaning pipes (904), the upper part of the first transmission shaft (902) is communicated with a sewage draining cavity, one end of the cleaning pipes (904) which is far away from the partition plate (903) is fixedly connected with a fixed rod (903), a cleaning rod (907) is arranged in the partition plate (907), and the cleaning rod (907) is arranged in the annular filter frame (907) and is fixedly connected with the bottom surface of the filter frame (907) and is arranged in the cavity (907) and is fixedly arranged in the cavity (907 An upper side of the communication frame (802) and the filter cartridge (803);

the device also comprises a pretreatment component (10), the pretreatment component (10) is arranged on the filtering shell (1) in a penetrating way, the pretreatment component (10) is used for cleaning the excessively thick adhesion impurities on the annular filtering frame (801) and the filtering cylinder (803), the pretreatment component (10) comprises a steering motor (1001), the steering motor (1001) is fixedly arranged on the supporting frame (6), an output gear (1002) is fixedly arranged at the output end of the steering motor (1001), a transmission sleeve (1003) penetrating through and in running fit with the filtering shell (1) is arranged outside the first transmission shaft (902), one end of the transmission sleeve (1003) is fixedly connected with a first outer toothed ring (1004) meshed with the output gear (1002), a sealing shell (1005) is fixedly connected to the upper side of the transmission sleeve (1003), a second outer toothed ring (1006) is arranged on the upper part of the transmission sleeve (1003), the second outer toothed ring (1006) is arranged inside the sealing shell (1005), a fixing sleeve (1008) fixedly connected with the partition plate (903) is fixedly arranged at the upper end of the sealing shell (903), one end of the transmission sleeve (1003) is fixedly connected with the partition plate (903), one end of the second transmission shaft (1005) is fixedly connected with the partition plate (1005), the second transmission shaft (1010) is fixedly connected with a transmission gear (1007) which is meshed with the second external gear ring (1006) for transmission, one end of the second transmission shaft (1010) far away from the transmission gear (1007) is in transmission connection with the partition plate (903) through a belt transmission part (1011), the other end of the second transmission shaft is rotationally connected to a spiral scraping plate (1012) of a fixed rod (907), the inner side of the spiral scraping plate (1012) is tightly attached to the cleaning pipe (904), and the outer part of the spiral scraping plate (1012) is tightly attached to the outer walls of the annular filter frame (801) and the filter cylinder (803);

the horizontal section of the communication frame (802) is provided with a sector structure, and the communication frame (802) and the adjacent annular filter frame (801) form a sector-shaped filter channel for reducing cleaning dead angles; the horizontal section of each communication frame (802) is small inside and large outside, and the horizontal section of each adjacent communication frame (802) is small inside and large outside and is used for increasing the flow from inside to outside; the periphery of the penetrating part of the cleaning pipe (904) of the partition plate (903) is provided with a dirt sucking hole which is communicated with a gap formed by the water collecting cavity (905), the annular filter frame (801) and the filter cartridge (803);

the sewage cavity scraping device comprises a sewage cavity scraping device, and is characterized by further comprising a scraping assembly (11) for scraping impurities on the side wall of a to-be-filtered cavity and a sewage cavity, wherein the scraping assembly (11) comprises an inner gear ring (1101), the inner gear ring (1101) is in transmission fit with a transmission gear (1007), a sewage cavity scraping plate (1102) is fixedly connected with the inner gear ring (1101) through a special-shaped connecting piece (1103), the special-shaped connecting piece (1103) penetrates through a sealing shell (1005), the special-shaped connecting piece (1103) is rotatably connected with the sealing shell (1005) and a sealing plate (1009), the sewage cavity scraping plate (1102) penetrates through the sealing shell (1005) through a fixed connecting rod, one end, far away from the transmission gear (1007), of the sewage cavity scraping plate (1102) is tightly attached to the side wall of the sewage cavity, a central shaft of a T-shaped fixing frame (1104) penetrates into a cavity of a fixing rod (907), the T-shaped fixing frame (1104) is in the cavity of the fixing rod (907) and is in transmission with an adjacent cleaning pipe (904) through a belt, the other two ends of the T-shaped fixing frame (1104) are fixedly connected with a to-be-filtered cavity scraping plate (1105), and the to-be-filtered cavity scraping plate (1105) is attached to the side wall of the to be-filtered cavity;

the device comprises a fixed rod (907) and is characterized by further comprising a third transmission shaft (12), wherein the lower end of the third transmission shaft (12) is fixedly connected with a spiral scraping plate (1012), the upper end of the third transmission shaft (12) is fixedly connected with a reciprocating screw rod (13), the reciprocating screw rod (13) is rotatably arranged on the fixed rod (907), a threaded sliding block (14) matched with the reciprocating screw rod is arranged outside the reciprocating screw rod (13), connecting rods (15) are symmetrically arranged on the side edges of the threaded sliding block (14), a row of wing plates (16) are arranged on the connecting rods (15), the distance between every two adjacent wing plates (16) is gradually reduced from top to bottom, and the wing plates (16) are in sliding fit with the T-shaped sliding grooves (906) so as to improve extraction pressure and extraction effects;

the filter also comprises an inclined water guide plate (1106), wherein the inclined water guide plate (1106) is fixed at one end of the scraping plate (1105) of the cavity to be filtered, which is far away from the fixed rod (907).

2. A self-cleaning filter for a ship ballast water treatment system according to claim 1, wherein: the filtering shell (1) and the side part of the cover body (2) are respectively provided with a window (7), and the window (7) is used for observing the adhesion condition of impurities in the filtering component (8) and the sewage cavity.

Images