CN110960914A - Seawater self-cleaning filter - Google Patents
Seawater self-cleaning filter Download PDFInfo
- Publication number
- CN110960914A CN110960914A CN201911254558.1A CN201911254558A CN110960914A CN 110960914 A CN110960914 A CN 110960914A CN 201911254558 A CN201911254558 A CN 201911254558A CN 110960914 A CN110960914 A CN 110960914A
- Authority
- CN
- China
- Prior art keywords
- filter
- seawater
- cleaning
- impeller shaft
- speed reducing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013535 sea water Substances 0.000 title claims abstract description 52
- 238000004140 cleaning Methods 0.000 title claims abstract description 42
- 239000010865 sewage Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000005260 corrosion Methods 0.000 claims description 7
- 230000003373 anti-fouling effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 11
- 238000001914 filtration Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Abstract
The invention discloses a seawater self-cleaning filter, which comprises a speed reducing motor, a body, an impeller shaft and a filter cylinder, wherein the speed reducing motor is connected with the body through a motor shaft; the body is provided with an inlet; a filter cylinder is arranged in the body; the inlet is communicated with the filter cylinder and introduces seawater into the filter cylinder; a cavity is formed between the filter cartridge and the inner wall of the body and is used for storing filtered seawater; the body is also provided with an outlet communicated with the cavity; an impeller shaft is arranged at the center of the filter cylinder in the body; the impeller shaft is electrically connected with the speed reducing motor and is driven by the speed reducing motor; the impeller shaft is provided with a helical blade; the body is connected with the sewage discharging bin; one side of the sewage discharging bin is provided with a sewage discharging port; the other side is provided with a cleaning port; the cleaning opening is connected with a high-pressure water pipe. The invention can remove the impurities in the seawater filter and prevent the seawater filter from being blocked.
Description
Technical Field
The invention relates to a filter, in particular to a seawater self-cleaning filter.
Background
The self-cleaning filter is used as cooling water rough filtration treatment equipment and is used in a negative pressure environment in front of a seawater pump. Under the condition of not influencing the work of the system, the cooling system is provided with a filtering function, the cooling system is protected, and dirt is discharged to the outside.
Disclosure of Invention
The invention aims to provide a seawater self-cleaning filter which can clean impurities in the seawater filter and prevent the seawater filter from being blocked.
In order to solve the technical problems, the invention adopts the following technical scheme: a seawater self-cleaning filter comprises a speed reducing motor, a body, an impeller shaft and a filter cylinder; the body is provided with an inlet; a filter cylinder is arranged in the body; the inlet is communicated with the filter cylinder and introduces seawater into the filter cylinder; a cavity is formed between the filter cartridge and the inner wall of the body and is used for storing filtered seawater; the body is also provided with an outlet communicated with the cavity;
an impeller shaft is arranged in the body at the center of the filter cartridge; the impeller shaft is electrically connected with the speed reducing motor and is driven by the speed reducing motor; the impeller shaft is provided with a helical blade; the body is connected with the sewage discharging bin; a sewage draining outlet is formed in one side of the sewage draining bin; the other side is provided with a cleaning port; the cleaning opening is connected with a high-pressure water pipe.
Furthermore, a differential pressure transmitter is arranged in the body; the differential pressure transmitter and the speed reducing motor are connected with the electric cabinet; when the pressure difference between the inlet and the outlet of the filter reaches a set value, the speed reducing motor is started to drive the impeller shaft to clean the sundries on the filter screen and convey the sundries to a sewage disposal bin at the bottom of the filter.
Further, the cleaning port is provided with an electric ball valve; the electric ball valve is connected with the electric cabinet.
Further, the rotating pitch of the helical blades on the impeller shaft is gradually reduced from top to bottom.
Furthermore, the drift diameter of the filter meshes in the filter cylinder is less than or equal to 2.5 mm.
Furthermore, the seawater self-cleaning filter is of a vertical structure, the body is vertically placed, and an impeller shaft is longitudinally arranged in the body; the bottom of the body is provided with support legs; the upper part of the side wall of the body is provided with an inlet, and the lower part of the side wall of the body is provided with an outlet; the top of the body is provided with an opening, and the top of the body is provided with a cover plate for sealing the opening; the speed reducing motor is arranged on the cover plate.
Furthermore, the seawater self-cleaning filter is of a horizontal structure, the body is horizontally arranged, and an impeller shaft is transversely arranged in the body; the top of the side wall of the body is provided with an outlet, and the bottom of the side wall of the body is provided with an inlet; one end of the body is provided with a cover plate, and the other end is provided with a sewage discharging bin.
Furthermore, an anti-corrosion and anti-fouling electrode extending into the body is also arranged on the base; the anti-corrosion and anti-pollution electrode is arranged at the inlet.
Further, a deflation valve is arranged on the cover plate.
The invention has the beneficial effects that:
1) the device can remove impurities in the seawater filter, prevent the seawater filter from being blocked, and is compatible with an antifouling protection device of a seawater system;
2) the working conditions of the seawater system are improved to meet the requirements of the seawater system of the ship equipment;
3) the cleaning and maintenance period is prolonged, and the maintenance intensity of the crew is reduced;
4) the normal use of the system is not affected when sundries are removed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a vertical seawater self-cleaning filter according to the present invention.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic view of the horizontal seawater self-cleaning filter of the present invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description.
As shown in fig. 1-3, the vertical seawater self-cleaning filter of the present invention comprises a speed reduction motor 1, a body 4, an impeller shaft 5 and a filter cartridge 6; the body 4 is vertically arranged, and one side of the upper part of the body 4 is provided with an inlet 41; a filter cylinder 6 is arranged in the body 4; the inlet 41 is communicated with the filter cartridge 6 to introduce seawater into the filter cartridge 6; a cavity is formed between the filter cartridge 6 and the inner wall of the body 4 and is used for storing filtered seawater; an outlet 42 communicated with the cavity is formed in one side of the lower part of the body 4; an impeller shaft 5 is vertically arranged in the body 4 at the center of the filter cartridge 6; the impeller shaft 5 is electrically connected with the speed reducing motor 1 and is driven by the speed reducing motor 1; the impeller shaft 5 is provided with helical blades; a sewage discharge bin 9 is arranged below the body 4; a sewage outlet 91 is arranged on one side of the sewage discharging bin 9; and the other side is provided with a cleaning port 92.
The seawater self-cleaning filter is of a vertical structure, and the bottom of the shell is provided with a support leg.
According to the dynamic filtering mode for automatically cleaning impurities by the spiral blades, the spiral blades are used for intercepting and conveying the impurities in the seawater to the filter sewage collecting bin, the impurities are conveyed to the bottom of the sewage collecting bin under pressure, and the impurities are flushed out of the ship board by high-pressure water, so that a seawater filtering channel is kept smooth, the filtering area of the filter is ensured to be unchanged, and the purpose of preventing the impurities from being blocked is achieved.
The invention is provided with a differential pressure transmitter 3 in the body; the differential pressure transmitter 3 and the speed reducing motor 1 are connected with the electric cabinet; after seawater enters the self-cleaning filter, the flow area of the filtering system is reduced due to accumulation and blockage of impurities, the pressure difference between two ends of the filter reaches a set value, the pressure difference transmitter provides a signal, and the speed reduction motor drives the rotary impeller to rotate to intercept the impurities in the water, so that the water flow continues to flow according to the original flow path. Sundries are conveyed to a dirt collecting bin at the bottom of the filter under the action of the impeller, and an electric ball valve is arranged at a cleaning port 92; the electric ball valve is connected with the electric cabinet. The electric valve is opened to provide high pressure water to flush the foreign matters out of the ship board. And conveying the sundries to a pollution discharge bin at the bottom of the filter, simultaneously opening an electric ball valve, and automatically closing after flushing for 20-30 seconds.
The rotating pitch of the helical blades on the impeller shaft 5 is gradually reduced from top to bottom. The downward conveying and the extrusion can be efficiently performed. Spiral impeller and drain high accuracy cooperation play the effect of isolated filter chamber and blowdown pipeline between pressure through the filth, reduce the influence that the sparge water flows to the inside sea water of filter.
The filtering precision of the filter cylinder 6 is generally less than or equal to 2.5 mm. The self-cleaning filter can be adjusted according to the use condition, the filter area ratio is more than or equal to 3.0, the normal use requirement of the system can be met under the power failure condition, and the water supply quantity cannot be influenced by blocking a part of meshes.
The top of the body 4 is provided with an opening, and the top is provided with a cover plate 10 for sealing the opening; the cover plate is connected with the body 4 through bolts, and a hole through which the impeller shaft 5 passes is reserved on the cover plate. The reduction motor 1 of the present invention is mounted on the cover plate 10. The cover plate 10 is also provided with an anti-corrosion and anti-fouling electrode 2 extending into the body; the anti-corrosion and anti-fouling electrode 2 is arranged at the inlet 41. The cover plate 10 is provided with a deflation valve 7.
When the self-cleaning filter has faults such as jamming and the like, the bolt connection is convenient and quick, the upper cover plate is disassembled for maintenance, and the normal use is recovered within 45 minutes; when the filter breaks down, the filtration ratio of 1:3 can meet the normal use requirement, and the operation of the system is not influenced.
The parts of the body of the invention, which are contacted with the seawater, are galvanized, and the filter screen and the helical blade are made of 316L materials which are resistant to seawater corrosion.
As shown in fig. 4, the seawater self-cleaning filter of the present invention may also be of a horizontal type structure. The body 4 is horizontally arranged, and an impeller shaft 5 is transversely arranged in the body 4; the top of the side wall of the body 4 is provided with an outlet 42, and the bottom is provided with an inlet 41; one end of the body 4 is provided with a cover plate 10, the cover plate 10 is provided with a speed reducing motor 1 for driving the impeller shaft 5, the other end of the body 4 is provided with a sewage discharging bin 9, and one side of the sewage discharging bin 9 is provided with a sewage discharging port 91; and the other side is provided with a cleaning port 92.
The specific working process of the invention is as follows: the sea chest grating is always below the water surface (generally larger than 1 meter), seawater enters from the sea chest grating under the action of pressure, the seawater enters into the filter through the sea through valve and the water inlet pipe, impurities are stripped off from the filter cartridge through the spiral impeller and conveyed to the sewage discharge bin, the filtered seawater flows out of the ship through the meshes of the filter cartridge (designed according to the drift diameter of filter particles), and sufficient seawater flow is provided to meet the requirements of operation of a cooling system, a fire fighting system and a flushing system on a ship.
The automatic cleaning function is controlled by pressure difference, when the pressure difference of the inlet and the outlet of the filter reaches a set value, the motor is started to drive the impeller shaft to clean the sundries on the filter screen, the sundries are conveyed to the sewage disposal bin at the bottom of the filter, and the electric ball valve is opened at the same time to automatically close after 20-30 seconds of flushing.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.
Claims (9)
1. Sea water self-cleaning filter, its characterized in that: comprises a speed reducing motor (1), a body (4), an impeller shaft (5) and a filter cartridge (6);
the body (4) is provided with an inlet (41); a filter cylinder (6) is arranged in the body (4);
the inlet (41) is communicated with the filter cylinder (6) and introduces seawater into the filter cylinder (6); a cavity is formed between the filter cartridge (6) and the inner wall of the body (4) and is used for storing filtered seawater;
the body (4) is also provided with an outlet (42) communicated with the cavity;
an impeller shaft (5) is arranged in the body (4) at the center of the filter cylinder (6); the impeller shaft (5) is electrically connected with the speed reducing motor (1) and is driven by the speed reducing motor (1); the impeller shaft (5) is provided with helical blades; the body (4) is connected with a sewage discharge bin (9); a sewage draining outlet (91) is formed in one side of the sewage draining bin (9); the other side is provided with a cleaning port (92); the cleaning opening (92) is connected with a high-pressure water pipe.
2. The seawater self-cleaning filter as recited in claim 1, wherein: a differential pressure transmitter (3) is arranged in the body (4); the differential pressure transmitter (3) and the speed reducing motor (1) are connected with the electric cabinet; when the pressure difference between the inlet and the outlet of the filter reaches a set value, the speed reducing motor (1) is started to drive the impeller shaft to clean the sundries on the filter screen and convey the sundries to a sewage disposal bin at the bottom of the filter.
3. The seawater self-cleaning filter as recited in claim 1, wherein: the cleaning port (92) is provided with an electric ball valve; the electric ball valve is connected with the electric cabinet.
4. The seawater self-cleaning filter as recited in claim 1, wherein: the rotating pitch of the helical blades on the impeller shaft (5) is gradually reduced from top to bottom.
5. The seawater self-cleaning filter as recited in claim 1, wherein: the drift diameter of the filter mesh in the filter cylinder (6) is less than or equal to 2.5 mm.
6. The seawater self-cleaning filter as recited in claim 1, wherein: the seawater self-cleaning filter is of a vertical structure, the body (4) is vertically placed, and an impeller shaft (5) is longitudinally arranged in the body (4); the bottom of the body (4) is provided with a support leg; the upper part of the side wall of the body (4) is provided with an inlet (41), and the lower part is provided with an outlet (42); the top of the body (4) is provided with an opening, and the top of the body (4) is provided with a cover plate (10) for sealing the opening; the speed reducing motor (1) is arranged on the cover plate (10).
7. The seawater self-cleaning filter as recited in claim 1, wherein: the seawater self-cleaning filter is of a horizontal structure, the body (4) is horizontally arranged, and an impeller shaft (5) is transversely arranged in the body (4); the top of the side wall of the body (4) is provided with an outlet (42), and the bottom is provided with an inlet (41); one end of the body (4) is provided with a cover plate (10), and the other end is provided with a sewage discharging bin (9).
8. The seawater self-cleaning filter as recited in claim 6, wherein: the cover plate (10) is also provided with an anti-corrosion and anti-fouling electrode (2) extending into the body; the anti-corrosion and anti-fouling electrode (2) is arranged at the inlet (41).
9. The seawater self-cleaning filter as recited in claim 6, wherein: the cover plate (10) is provided with a deflation valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911254558.1A CN110960914A (en) | 2019-12-10 | 2019-12-10 | Seawater self-cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911254558.1A CN110960914A (en) | 2019-12-10 | 2019-12-10 | Seawater self-cleaning filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110960914A true CN110960914A (en) | 2020-04-07 |
Family
ID=70033652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911254558.1A Pending CN110960914A (en) | 2019-12-10 | 2019-12-10 | Seawater self-cleaning filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110960914A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198237A (en) * | 2021-03-25 | 2021-08-03 | 中国船舶重工集团公司第七二五研究所 | Compact seawater filter with online cleaning function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286974A (en) * | 2012-02-29 | 2013-09-11 | 扬州清溢环保科技有限公司 | Shaftless auger delivery presser |
| CN104174202A (en) * | 2014-07-17 | 2014-12-03 | 江苏南通申通机械有限公司 | Special seawater filter for ship |
| CN207954737U (en) * | 2017-03-08 | 2018-10-12 | 广东益康生环保设备有限公司 | A kind of screw and screw extrusion solid-liquid separating machine |
| CN208161140U (en) * | 2018-03-25 | 2018-11-30 | 江苏南通申通机械有限公司 | The control system of horizontal seawater automatic filtering unit |
| CN208205019U (en) * | 2018-04-08 | 2018-12-07 | 江苏建筑职业技术学院 | Garbage dewatering pretreatment unit and incineration system |
| CN208617575U (en) * | 2018-03-25 | 2019-03-19 | 江苏南通申通机械有限公司 | A kind of horizontal seawater automatic filtering unit |
| CN208911591U (en) * | 2018-03-25 | 2019-05-31 | 江苏南通申通机械有限公司 | A kind of vertical sea water automatic filtering unit |
-
2019
- 2019-12-10 CN CN201911254558.1A patent/CN110960914A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286974A (en) * | 2012-02-29 | 2013-09-11 | 扬州清溢环保科技有限公司 | Shaftless auger delivery presser |
| CN104174202A (en) * | 2014-07-17 | 2014-12-03 | 江苏南通申通机械有限公司 | Special seawater filter for ship |
| CN207954737U (en) * | 2017-03-08 | 2018-10-12 | 广东益康生环保设备有限公司 | A kind of screw and screw extrusion solid-liquid separating machine |
| CN208161140U (en) * | 2018-03-25 | 2018-11-30 | 江苏南通申通机械有限公司 | The control system of horizontal seawater automatic filtering unit |
| CN208617575U (en) * | 2018-03-25 | 2019-03-19 | 江苏南通申通机械有限公司 | A kind of horizontal seawater automatic filtering unit |
| CN208911591U (en) * | 2018-03-25 | 2019-05-31 | 江苏南通申通机械有限公司 | A kind of vertical sea water automatic filtering unit |
| CN208205019U (en) * | 2018-04-08 | 2018-12-07 | 江苏建筑职业技术学院 | Garbage dewatering pretreatment unit and incineration system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198237A (en) * | 2021-03-25 | 2021-08-03 | 中国船舶重工集团公司第七二五研究所 | Compact seawater filter with online cleaning function |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200407 |
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| RJ01 | Rejection of invention patent application after publication |