CN115845476A - Marine binocular drainage equipment of LNG - Google Patents

Marine binocular drainage equipment of LNG Download PDF

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Publication number
CN115845476A
CN115845476A CN202211468302.2A CN202211468302A CN115845476A CN 115845476 A CN115845476 A CN 115845476A CN 202211468302 A CN202211468302 A CN 202211468302A CN 115845476 A CN115845476 A CN 115845476A
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China
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water
filter
filtering
adapter
sleeve
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CN202211468302.2A
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CN115845476B (en
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罗玉
罗超华
龚迎斌
欧绍明
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Hunan Jinhang Ship Manufacturing Co ltd
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Hunan Jinhang Ship Manufacturing Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/30Use of alternative fuels, e.g. biofuels

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Abstract

The invention discloses a double-cylinder water filtering device for an LNG ship, which comprises: the water inlet device comprises a mounting frame and a first guide pipe transversely arranged at one end of the mounting frame, wherein the middle part of the first guide pipe is communicated with a water inlet channel for water to enter; the two first adapter tubes are respectively communicated with two ends of the first conduit, and the ends, close to the two first adapter tubes, of the first conduit are respectively provided with a second electromagnetic valve and a third electromagnetic valve; a fourth solenoid valve disposed on the second conduit; and two groups of filter cylinder devices which are respectively communicated between the first adapter tube and the second adapter tube. The invention can back flush the filter cylinder device at the other position to realize the self-cleaning process without influencing the normal filtering condition of one filter cylinder device, and the self-cleaning process can be realized by switching the working states of the two filter cylinder devices, thereby avoiding inconvenience caused by manual regular overhaul and maintenance.

Description

Marine binocular drainage equipment of LNG
Technical Field
The invention relates to the technical field of LNG ships, in particular to a double-cylinder water filtering device for an LNG ship.
Background
LNG ships are generally referred to as liquefied natural gas ships. The liquefied natural gas ship is called an LNG ship for short. Refers to a "ship" dedicated to the transport of liquefied natural gas. The cooling fluid used on the ship is mainly outboard water, the water quality and cleanliness of the cooling fluid are greatly influenced by a water area, and in order to prevent impurities in the outboard water from entering a cooling system, a filter is usually arranged at an inlet of key equipment such as a pump and a cooler to filter the impurities;
the marine double-cylinder water filtering device (202011217038.6) as disclosed in the Chinese patent comprises a first cylinder and a second cylinder, wherein filter elements are respectively arranged in the first cylinder and the second cylinder, a water inlet of the first cylinder and a water inlet of the second cylinder are both connected with a water inlet main pipe, a water outlet of the first cylinder and a water outlet of the second cylinder are both connected with a water outlet main pipe, a first end of a first plugging component extends into the water inlet main pipe, a first end of a second plugging component extends into the water outlet main pipe, an output end of a driving component is connected with a second end of the first plugging component and a second end of the second plugging component, and the driving component can drive the first plugging component and the second plugging component to synchronously move so as to selectively plug the water inlet and the water outlet of the first cylinder respectively or plug the water inlet and the water outlet of the second cylinder respectively. Therefore, the filter can be cleaned under the condition that the ship does not stop, the blockage is avoided, and the structure is simple and the operation is convenient;
however, in the actual use process, the double-cylinder water filtering device needs to take out the filter element of the equipment to clean the filter, and the process is complicated, and needs to be maintained regularly to clean and replace the filter.
Disclosure of Invention
The invention aims to provide double-cylinder water filtering equipment for an LNG ship, which can perform back flushing on a filter cylinder device at the other position under the condition that normal filtering of one filter cylinder device is not influenced, so that the self-cleaning process of the filter cylinder device is realized, the self-cleaning process of the filter cylinder device can be realized through switching the working states of the two filter cylinder devices, and inconvenience caused by manual regular overhaul and maintenance is avoided.
In order to achieve the purpose, the invention provides the following technical scheme: marine binocular drainage equipment of LNG, includes: the water inlet device comprises a mounting frame and a first guide pipe transversely arranged at one end of the mounting frame, wherein the middle part of the first guide pipe is communicated with a water inlet channel for water to enter; the end parts of the first guide pipe, which are close to the two first adapter pipes, are respectively provided with a second electromagnetic valve and a third electromagnetic valve which are used for respectively controlling the on-off of the adjacent first adapter pipes, a sewage discharge pipeline communicated with the end part of the first adapter pipe and used for discharging sludge, and the first electromagnetic valves arranged on the sewage discharge pipeline and used for controlling the opening and closing of the sewage discharge pipeline; the drainage pipe is characterized by further comprising a second guide pipe which is arranged at the other end of the mounting frame and is transversely arranged, two ends of the second guide pipe are respectively communicated with second adapter pipes, the opposite ends of the two second adapter pipes are respectively communicated with drainage pipes for draining filtered water, and each drainage pipe is further provided with a fifth electromagnetic valve for controlling the opening and closing of a drainage pipe channel; the fourth electromagnetic valve is arranged on the second conduit and used for controlling the on-off of the two second adapter tubes; and two groups of filter cylinder devices which are respectively communicated between the first adapter pipe and the second adapter pipe and used for filtering and removing impurities of the water inlet channel.
Preferably, each group of filter cartridge devices comprises a filter cylinder fixed on the side wall of the mounting frame and a filter plug arranged inside the filter cylinder, the filter plug is provided with a plurality of filter holes for filtering water, and the filter plug is made of elastic rubber material; the filter comprises extension sleeves connected to two ends of the filter cylinder, and a first connecting sleeve and a second connecting sleeve which are respectively connected to the end parts of the two extension sleeves, wherein the first connecting sleeve is used for being communicated with the lower part of a first adapter pipe, and the second connecting sleeve is used for being communicated with the upper part of a second adapter pipe; the filter plug is characterized by further comprising two groups of connecting rod transmission stretching mechanisms arranged on the side wall of the mounting rack and used for adjusting the aperture of the filter hole where the filter plug is located.
Preferably, each connecting rod transmission stretching mechanism comprises a mounting ring fixed at the end part of the mounting frame, the mounting ring is sleeved on the outer wall of the filtering cylinder body, and a plurality of fixed sleeves are annularly fixed on the mounting ring, and each fixed sleeve is provided with a rotatable rotating sleeve; the filter plug is characterized by further comprising transmission rods which are arranged on the side wall of each rotating sleeve and can swing, a connecting rod is connected between the transmission rods where two adjacent rotating sleeves are located, two ends of each connecting rod are respectively rotatably connected with the end portions where the two transmission rods are located, the side wall where each connecting rod is located is fixedly connected with a pull belt, and one end, far away from the connecting rod, of each pull belt is fixedly connected with the corresponding side wall of the extending sleeve and used for pulling the filter plug to expand outwards; and the rotatable fulcrum wheel is arranged on the mounting ring, is connected to the outer wall of the mounting ring through the mounting piece and is positioned below the pull belt.
Preferably, one of the fixed sleeves is provided with a meshing driving assembly for driving the rotating sleeve to rotate; the meshing driving assembly comprises a motor fixed on the outer wall of the fixing sleeve, a driving tooth is installed on an output shaft of the motor, and an outer gear ring on the rotating sleeve is installed, and meshing transmission is conducted between the outer gear ring and the driving tooth.
Preferably, when one of the connecting rod transmission stretching mechanisms is in an outward expansion state, the aperture of the filtering hole at the corresponding position is increased, the other connecting rod transmission stretching mechanism is in a contraction state, the aperture of the filtering hole at the corresponding position is decreased, and conical holes in different directions are formed.
Preferably, the first connecting sleeve and the second connecting sleeve are both elastic rubber tubes.
Preferably, the mounting bracket comprises a cross rod and a vertical rod, the end part of the cross rod is used for mounting two filtering cylinders, and the two ends of the vertical rod are respectively used for mounting a first guide pipe and a second guide pipe.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the opening and closing of the plurality of electromagnetic valves, namely when the fourth electromagnetic valve is opened, one part of filtered water can be discharged through the drain pipe, the other part of filtered water enters the second switching pipe which flows back to the other side through the fourth electromagnetic valve, and because the drain pipe channel at the position is closed, the water flow at the position can carry out back flushing on the filter cylinder device in the non-working state, so that the filter residues accumulated in the filter cylinder can be subjected to back flushing, and finally the filter residues are discharged through the opened sewage discharge pipeline.
2. According to the invention, through the connecting rod transmission stretching mechanisms arranged at the two ends of the mounting frame, when the connecting rod transmission stretching mechanisms at the corresponding positions work, the material arrangement of the filter plug is matched, when the section of the filter plug is subjected to circumferential pulling force, the whole section area of the filter plug is increased, the diameter of the corresponding filter hole is increased, the aperture change of the filter hole can be realized, and the filter requirements of different impurities can be conveniently met by changing the diameter of the filter hole, so that the filter plug can better meet different water filtering environments.
3. As other embodiments of the invention, the filtering holes from top to bottom can be selected to be in a conical shape from large to small, when the fluid enters from a large caliber and becomes smaller gradually, the impurities are blocked gradually until the clean fluid flows out through a small opening at the end part, and the fine filtering process is realized.
4. According to the invention, through the connection among the structures, when the filter cartridge device does not work, namely the water flow is subjected to a backwashing process, the connecting rod transmission stretching mechanism is adjusted again, so that the aperture size of the filter holes is dynamically changed, effective cleaning of the aperture can be realized under the supporting action of backwashing, and the possibility of blockage of the filter holes is effectively reduced.
Drawings
FIG. 1 is a perspective view of a first perspective of the present invention;
FIG. 2 is a schematic plan view of the structure of FIG. 1;
FIG. 3 is a perspective view of the second view angle of FIG. 1;
FIG. 4 is a perspective view of a filter cartridge assembly of the present invention from a first perspective;
FIG. 5 is a perspective view of the second view angle of FIG. 4;
FIG. 6 is a perspective view of the third perspective view of FIG. 5;
FIG. 7 is a schematic perspective view of the connecting rod transmission stretching mechanism of the present invention;
fig. 8 is a partially enlarged structural schematic view of the meshing drive assembly of the present invention.
In the figure: 1. a water inlet channel; 2. a first conduit; 3. a first adapter tube; 4. a first solenoid valve; 5. a second solenoid valve; 6. a blowdown line; 7. a third electromagnetic valve; 8. a filter cylinder; 9. a first connecting sleeve; 10. a mounting frame; 11. a fourth solenoid valve; 12. a second adapter tube; 13. a fifth solenoid valve; 14. a drain pipe; 15. a second connecting sleeve; 16. a second conduit; 17. a filter plug; 18. a filtration pore; 19. a fulcrum wheel; 20. an extension sleeve; 21. a connecting rod; 22. a transmission rod; 23. a mounting ring; 24. rotating the sleeve; 25. a motor; 26. an outer ring gear; 28. a drive tooth; 30. fixing a sleeve; 31. and a draw tape.
Detailed Description
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 8, the present invention preferably provides a technical solution: marine binocular drainage equipment of LNG, includes: the water supply device comprises a mounting frame 10 and a first conduit 2 transversely arranged at one end of the mounting frame 10, wherein the middle part of the first conduit 2 is communicated with a water inlet channel 1 for water to enter; the two first adapter pipes 3 are respectively communicated with two ends of the first conduit 2, the end parts of the first conduit 2 close to the two first adapter pipes 3 are respectively provided with a second electromagnetic valve 5 and a third electromagnetic valve 7 which are used for respectively controlling the on-off of the adjacent first adapter pipes 3, a sewage discharge pipeline 6 communicated with the end part of the first adapter pipe 3 is used for discharging sludge, and a first electromagnetic valve 4 arranged on the sewage discharge pipeline 6 is used for controlling the opening and closing of the sewage discharge pipeline 6; the water draining device is characterized by further comprising a second guide pipe 16 which is arranged at the other end of the mounting frame 10 and is transversely arranged, two ends of the second guide pipe 16 are respectively communicated with second adapter pipes 12, the opposite ends of the two second adapter pipes 12 are respectively communicated with water draining pipes 14 for draining filtered water, and each water draining pipe 14 is further provided with a fifth electromagnetic valve 13 for controlling the opening and closing of a channel of each water draining pipe 14; the fourth electromagnetic valve 11 is arranged on the second conduit 16 and is used for controlling the on-off of the two second adapter tubes 12; and two groups of filter cylinder devices which are respectively communicated between the first adapter tube 3 and the second adapter tube 12 and used for filtering and removing impurities of the water inlet channel 1.
In the present embodiment, as an embodiment of water filtration, when the outboard water enters the interior of the first conduit 2 from the water inlet channel 1, as shown in fig. 1 to 3, when the second solenoid valve 5 and the third solenoid valve 7 work and open the channels corresponding to the first adapter 3, at this time, the first solenoid valves 4 corresponding to the two sewerage pipelines 6 are closed, the fourth solenoid valve 11 at the second conduit 16 is closed, and the fifth solenoid valves 13 at the two drain pipes 14 work and open the channels, in this state, the two filter cylinder devices are both performing water filtration work, so that the outboard water enters from the water inlet channel 1, then is divided to two sides in the interior of the first conduit 2, then enters the filter cylinder devices at two sides and is discharged from the drain pipes 14, thereby implementing a double-cylinder filtration process;
as another embodiment thereof, when the second solenoid valve 5 or the third solenoid valve 7 is controlled to operate and close, the first solenoid valve 4 corresponding to the position of the sewage pipe 6 is opened, and the fourth solenoid valve 11 of the second conduit 16 is opened, and at the same time, the fifth solenoid valve 13 on the side where the first solenoid valve 4 is opened is controlled to close, that is, the drain pipe 14 passage at this position is closed, and this process is a single filter cartridge device operation, specifically, outboard water enters the first conduit 2 from the water inlet passage 1, when the second solenoid valve 5 or the third solenoid valve 7 suddenly operates, the water flow is suddenly cut off, and at this time, a water hammer effect occurs, and the water flow entering the water inlet passage 1 is converged and rapidly flows to the inside of the other side 3 and is filtered by the filter cartridge device at this position, because of the opening of the fourth solenoid valve 11, a part of the filtered water can be discharged through the drain pipe 14, and another part of the filtered water enters the second adapter pipe 12 on the other side through the fourth solenoid valve 11, and because of the drain pipe 14 passage at this position is closed, this position, and this water can be discharged through the filter cartridge device in a back to the other adapter pipe, and the filter cartridge device can be cleaned without the back, and the filter cartridge device can be cleaned by the filter cartridge device can be cleaned, and the filter cartridge device can be cleaned by the filter cartridge device without the filter cartridge device.
Example 2
As shown in fig. 4 to 8, each group of filter cartridge devices includes a filter cartridge 8 fixed on the side wall of the mounting frame 10, and a filter plug 17 disposed inside the filter cartridge 8, the filter plug 17 is provided with a plurality of filter holes 18 for filtering water, and the filter plug 17 is made of an elastic rubber material; the filter comprises extension sleeves 20 connected to two ends of a filter cylinder 8, and a first connecting sleeve 9 and a second connecting sleeve 15 which are respectively connected to the end parts of the two extension sleeves 20, wherein the first connecting sleeve 9 is used for communicating with the lower part of a first adapter tube 3, and the second connecting sleeve 15 is used for communicating with the upper part of a second adapter tube 12; the device also comprises two groups of connecting rod transmission stretching mechanisms arranged on the side wall of the mounting rack 10 and respectively used for adjusting the aperture of the filtering hole 18 where the filtering plug 17 is positioned.
Under this embodiment, through the link drive tension mechanism of mounting bracket 10 both ends setting, work as the link drive tension mechanism work of corresponding position, the material setting of stopper 17 is filtered in the cooperation, receive pulling power of circumference when filtering stopper 17 place cross-section, can filter the whole cross sectional area increase of stopper 17, the 18 diameter increase in filtration hole that corresponds, can realize the aperture change of filtration hole 18, through the diameter size that changes filtration hole 18, be convenient for adapt to the filtration demand of different impurity, the different drainage environment of better adaptation.
Furthermore, each connecting rod transmission stretching mechanism comprises a mounting ring 23 fixed at the end of the mounting frame 10, the mounting ring 23 is sleeved on the outer wall of the filtering cylinder 8, and a plurality of fixed sleeves 30 annularly fixed on the mounting ring 23, and each fixed sleeve 30 is provided with a rotatable rotating sleeve 24; the filter plug is characterized by further comprising transmission rods 22 which are arranged on the side wall of each rotating sleeve 24 and can swing, a connecting rod 21 is connected between the transmission rods 22 where the two adjacent rotating sleeves 24 are located, two ends of each connecting rod 21 are respectively rotatably connected with the end where the two transmission rods 22 are located, the side wall where each connecting rod 21 is located is fixedly connected with a pull belt 31, and one end, far away from the connecting rod 21, of each pull belt 31 is fixedly connected with the side wall of the corresponding extending sleeve 20 and used for pulling the filter plug 17 to expand outwards; and a rotatable fulcrum wheel 19 arranged on the mounting ring 23, wherein the fulcrum wheel 19 is connected to the outer wall of the mounting ring 23 through a mounting piece and is positioned below the pull belt 31.
Through the provided link transmission stretching mechanism, as shown in fig. 5, 6 and 7, when the plurality of rotary sleeves 24 annularly arranged on the mounting ring 23 rotate, the drawable belt 31 further pulls and moves under the connecting action of the transmission rod 22 and the connecting rod 21, specifically, when the rotary sleeve 24 rotates counterclockwise, the connecting rod 21 where the transmission rod 22 is located retracts toward the filtering cylinder 8, so that the aperture of the filtering hole 18 where the filtering plug 17 is located becomes smaller, that is, as shown in fig. 4, when the drain pipe 14 continues to run counterclockwise, so that the connecting rod 21 crosses the joint point with the filtering cylinder 8 and gradually gets away from the joint point, at this time, the plurality of connecting rods 21 expand outward and pull the drawable belt 31, under the supporting action of the fulcrum wheel 19, the whole cross section of the filtering plug 17 can be expanded outward, even if the aperture of the filtering hole 18 where the filtering plug 17 is located becomes larger, as shown in fig. 5.
Further, one of the fixed sleeves 30 is provided with a meshing driving component for driving the rotating sleeve 24 to rotate; the meshing driving component comprises a motor 25 fixed on the outer wall of the fixed sleeve 30, a driving tooth 28 is arranged on the output shaft of the motor 25, and an external gear ring 26 arranged on the rotating sleeve 24, and the external gear ring 26 and the driving tooth 28 are in meshing transmission.
As shown in fig. 6 and 7, when the driving motor 25 is operated, the driving teeth 28 are driven to rotate, the driving teeth 28 are engaged with the outer toothed ring 26 to further drive the rotating sleeves 24 thereon to rotate, and the adjacent rotating sleeves 24 are connected with the connecting rod 21 through the transmission rod 22, so that the rotating sleeves 24 are driven to rotate.
Example 3
When one of the connecting rod transmission stretching mechanisms is in an outward expanding state, the aperture of the filtering hole 18 at the corresponding position is increased, the other connecting rod transmission stretching mechanism is in a contracting state, the aperture of the filtering hole 18 at the corresponding position is reduced, and conical holes in different directions are formed.
In this embodiment, the aperture size of the filtering holes 18 can be adjusted by the arrangement of the connecting rod transmission stretching mechanisms, as shown in fig. 4 and 5, when two groups of connecting rod transmission stretching mechanisms are respectively located at two ends of the filtering cylinder 8, one group of connecting rod transmission stretching mechanisms is in an inward contraction state, so that the aperture of the filtering holes 18 at one end of the filtering cylinder 8 is reduced, that is, as shown in fig. 4, the other group of connecting rod transmission stretching mechanisms is in an outward expansion state, so that the aperture of the filtering holes 18 at the other end of the filtering cylinder 8 is increased, that is, as shown in fig. 5, at this time, the overall shape of the filtering holes 18 is conical, that is, the aperture is changed from large to small, or from small to large;
as other embodiments of the invention, when the filter cartridge device works, namely the water filtration state is carried out, at this time, the conical state of the aperture of the filter holes 18 from large to small from top to bottom can be selected, when the fluid enters from large aperture and gradually becomes small, the impurities are gradually blocked until the clean fluid flows out through the small aperture at the end part, so as to realize the fine filtration process, when the filter cartridge device does not work, namely the water flow generates the back washing process, the connecting rod transmission stretching mechanism is adjusted again, so that the aperture size of the filter holes 18 is dynamically changed, under the holding action of the back washing, the effective cleaning of the aperture can be realized, and the possibility of the blockage of the filter holes 18 is effectively reduced.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The detachable installation mode has various modes, for example, the detachable installation mode can be matched with a buckle through inserting, for example, a bolt connection mode and the like.
The conception, the specific structure and the technical effects of the present invention are clearly and completely described above in connection with the embodiments and the accompanying drawings, so that the objects, the features and the effects of the present invention can be fully understood. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.
The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.

Claims (7)

1. Marine binocular drainage equipment of LNG, its characterized in that includes:
the water inlet device comprises a mounting frame (10) and a first conduit (2) transversely arranged at one end of the mounting frame (10), wherein the middle part of the first conduit (2) is communicated with a water inlet channel (1) for water to enter;
the two first adapter pipes (3) are respectively communicated with two ends of the first conduit (2), the end parts, close to the two first adapter pipes (3), of the first conduit (2) are respectively provided with a second electromagnetic valve (5) and a third electromagnetic valve (7) which are used for respectively controlling the on-off of the adjacent first adapter pipes (3), a sewage discharge pipeline (6) communicated with the end part of the first adapter pipe (3) and used for discharging sludge, and a first electromagnetic valve (4) arranged on the sewage discharge pipeline (6) and used for controlling the opening and closing of the sewage discharge pipeline (6);
the water draining device is characterized by further comprising second guide pipes (16) which are arranged at the other end of the mounting frame (10) in a transverse mode, wherein two ends of each second guide pipe (16) are respectively communicated with a second adapter pipe (12), the opposite ends of the two second adapter pipes (12) are respectively communicated with water draining pipes (14) for draining filtered water, and each water draining pipe (14) is further provided with a fifth electromagnetic valve (13) for controlling the opening and closing of a channel of each water draining pipe (14);
the fourth electromagnetic valve (11) is arranged on the second conduit (16) and is used for controlling the connection and disconnection between the two second adapter tubes (12);
and two groups of filter cylinder devices which are respectively communicated between the first adapter tube (3) and the second adapter tube (12) and used for filtering and removing impurities of the water inlet channel (1).
2. The double-cylinder water filtering equipment for the LNG ship as claimed in claim 1, wherein: each group of filter cartridge devices comprises a filter cylinder (8) fixed on the side wall of the mounting frame (10) and a filter plug (17) arranged inside the filter cylinder (8), wherein the filter plug (17) is provided with a plurality of filter holes (18) for filtering water, and the filter plug (17) is made of elastic rubber material;
the filter cylinder body (8) is provided with extension sleeves (20) connected to two ends of the filter cylinder body (8), and a first connecting sleeve (9) and a second connecting sleeve (15) which are respectively connected to the end parts of the two extension sleeves (20), wherein the first connecting sleeve (9) is used for being communicated with the lower part of the first adapter tube (3), and the second connecting sleeve (15) is used for being communicated with the upper part of the second adapter tube (12);
the device also comprises two groups of connecting rod transmission stretching mechanisms arranged on the side wall of the mounting rack (10) and respectively used for adjusting the aperture of the filtering hole (18) where the filtering plug (17) is located.
3. The double-cylinder water filtering equipment for the LNG ship as claimed in claim 2, wherein: each connecting rod transmission stretching mechanism comprises a mounting ring (23) fixed at the end part of the mounting frame (10), the mounting ring (23) is sleeved on the outer wall of the filtering cylinder body (8), and a plurality of fixing sleeves (30) are annularly fixed on the mounting ring (23), and each fixing sleeve (30) is provided with a rotatable rotating sleeve (24);
the filter plug is characterized by further comprising transmission rods (22) which are arranged on the side wall of each rotating sleeve (24) and can swing, a connecting rod (21) is connected between the transmission rods (22) where the two adjacent rotating sleeves (24) are located, two ends of each connecting rod (21) are respectively connected with the ends where the two transmission rods (22) are located in a rotating mode, a pull belt (31) is fixedly connected to the side wall where each connecting rod (21) is located, and one end, far away from the connecting rod (21), of each pull belt (31) is fixedly connected with the side wall of the corresponding extending sleeve (20) and used for pulling the filter plug (17) to expand outwards;
and the rotatable fulcrum wheel (19) is arranged on the mounting ring (23), and the fulcrum wheel (19) is connected to the outer wall of the mounting ring (23) through a mounting piece and is positioned below the pull belt (31).
4. The LNG marine double-cylinder water filtration apparatus according to claim 3, wherein: one of the fixed sleeves (30) is provided with a meshing driving component for driving the rotating sleeve (24) to rotate;
the meshing driving assembly comprises a motor (25) fixed on the outer wall of the fixed sleeve (30), a driving tooth (28) is installed on an output shaft of the motor (25), an outer toothed ring (26) on the rotating sleeve (24) is installed, and meshing transmission is conducted between the outer toothed ring (26) and the driving tooth (28).
5. The double-cylinder water filtering equipment for the LNG ship as claimed in claim 2, wherein: when one of the connecting rod transmission stretching mechanisms is in an outward expansion state, the aperture of the filtering hole (18) at the corresponding position is increased, the other connecting rod transmission stretching mechanism is in a contraction state, the aperture of the filtering hole (18) at the corresponding position is reduced, and conical holes in different directions are formed.
6. The double-cylinder water filtering equipment for the LNG ship as claimed in claim 2, wherein: the first connecting sleeve (9) and the second connecting sleeve (15) are both elastic rubber tubes.
7. The double-cylinder water filtering equipment for the LNG ship as claimed in claim 1, wherein: the mounting rack (10) comprises a cross rod and a vertical rod, the end part of the cross rod is used for mounting two filtering cylinders (8), and the two ends of the vertical rod are respectively used for mounting the first guide pipe (2) and the second guide pipe (16).
CN202211468302.2A 2022-11-22 2022-11-22 Marine binocular drainage equipment of LNG Active CN115845476B (en)

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CN117531285A (en) * 2024-01-10 2024-02-09 浙江浙能迈领环境科技有限公司 Duplex filter convenient to wash

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CN207478120U (en) * 2017-11-20 2018-06-12 唐山学院 Changeable operation and the filter device of automatic back-washing
CN216125311U (en) * 2021-11-17 2022-03-25 香河县兴华金属制品有限公司 Filtering mechanism
CN216259530U (en) * 2021-11-25 2022-04-12 四川省诚德蓝天环保科技有限公司 Raw water filtering device with backwashing function

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CN207478120U (en) * 2017-11-20 2018-06-12 唐山学院 Changeable operation and the filter device of automatic back-washing
CN216125311U (en) * 2021-11-17 2022-03-25 香河县兴华金属制品有限公司 Filtering mechanism
CN216259530U (en) * 2021-11-25 2022-04-12 四川省诚德蓝天环保科技有限公司 Raw water filtering device with backwashing function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117531285A (en) * 2024-01-10 2024-02-09 浙江浙能迈领环境科技有限公司 Duplex filter convenient to wash
CN117531285B (en) * 2024-01-10 2024-04-02 浙江浙能迈领环境科技有限公司 Duplex filter convenient to wash

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