CN103212232B - Full-automatic high-precision back-flushing filter - Google Patents
Full-automatic high-precision back-flushing filter Download PDFInfo
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- CN103212232B CN103212232B CN201310163606.2A CN201310163606A CN103212232B CN 103212232 B CN103212232 B CN 103212232B CN 201310163606 A CN201310163606 A CN 201310163606A CN 103212232 B CN103212232 B CN 103212232B
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Abstract
The invention discloses a full-automatic high-precision back-flushing filter comprising a shell, wherein the shell is internally provided with a rotary main shaft; one end of the rotary main shaft penetrates through a cover plate to be connected with a speed reducing motor shaft; the speed reducing motor shaft is connected with a combined speed reducing motor; the other end of the rotary main shaft is connected with a pollution discharging rotary arm; the lower end of the pollution discharging rotary arm is connected with a pollution discharging pipe; the pollution discharging rotary arm is provided with a dirt inlet; the shell is internally provided with a filtering core pipe plate and the filtering core pipe plate is provided with a plurality of filtering cores; the filtering cores are communicated with the dirt inlet; the lower end of each filtering core is inserted into the filtering core pipe plate and a sealing ring is arranged between the lower end of each filtering core and the filtering core pipe plate; a spring is arranged between the upper end of each filtering core and a cover plate; the outer wall of the pollution discharging rotary arm is connected with a rotary water pipe; the rotary water pipe is provided with a plurality of rotary radial shower nozzles; the shell is internally provided with a filtering drum and a water inlet is arranged at the outer part of the filtering drum; the filtering drum is provided with a fixed tangential shower nozzle; and the lower part of the shell is provided with a sedimentation chamber. The full-automatic high-precision back-flushing filter has the advantages of convenience in detachment, long in service life and stability in operation.
Description
Technical field
The present invention relates to a kind of full-automatic high precision recoil filter, be mainly used in naval vessel and inject the seawater reaching certain precision after filtration to ballast tank.
Background technology
At present, filter core in Full automatic backwashing filter and central dividing plate linked vector graph are for being threaded or Flange joint, above method requirement on machining accuracy is high, install loaded down with trivial details, namely installation process relates to specific purpose tool and specific purpose tool needs special messenger's keeping, it is more inconvenient to use, and boats and ships inner space is narrow and small, former filter core maintenance dismounting inconvenience; The filter cartridge construction form adopted is candle formula filter core, material is generally 304, SUS316,316L etc., complicated variety due to marine environment makes the temperature of seawater, oxygen content, filter ion concentration, seawater and the relative velocity of material, the direct impact of the factor such as seawater pollution situation and marine growth, make above material careless slightly, just can occur the destruction such as spot corrosion, crevice corrosion, filter core is shorter for service life; Full automatic backwashing filter is sea water filter before pump, and filtering accuracy is comparatively thick, and in use procedure, to receive dirty burden heavier for filter core, often occurs the situation that filter core blocks in backwash process; The sewage draining exit of Full automatic backwashing filter runs into the easy risk occurring blocking of large dirt (as algae etc.); In inland river because water quality is poor, easily there is sediment deposition and block the situation of sewage draining exit, and sediment deposition directly can destroy full-automatic high precision backwash filter internal transmission part, irreversible damage is brought to full-automatic high precision backwash filter, heavy then directly affect boats and ships and to pull in shore handling goods; Full automatic backwashing filter uses travel switch to control backwash step, easily unreliable phenomenon is there is in travel switch in boats and ships longtime running, namely there is the phenomenons such as wearing and tearing, electric shock loose contact, and travel point there will be bias phenomenon after filter longtime running, cause recoil point inconsistent phenomenon, directly affect the use of backwash filter and the running of normally pulling in shore of boats and ships.
Summary of the invention
The object of the invention is to overcome above deficiency, a kind of easy accessibility, long service life, stable full-automatic high precision recoil filter are provided.
Object of the present invention is achieved through the following technical solutions: a kind of full-automatic high precision recoil filter, comprise housing, the top of housing is provided with cover plate, cover plate is provided with air bleeding valve, the side of the middle and upper part of housing is provided with delivery port, the side of the bottom of housing is provided with water inlet, center in housing is provided with the rotary main shaft vertically arranged, one end of rotary main shaft is connected with reducing motor axle through cover plate, reducing motor axle is connected with combination reducing motor, the other end of rotary main shaft is connected with blowdown turning arm, blowdown turning arm lower end is connected with blow-off pipe, blow-off pipe is through housing upper, blowdown turning arm is provided with two dirt inlets, filter core tube sheet is provided with in housing, filter core tube sheet is provided with the blowdown filter core group of two groups of blowdowns simultaneously, often organize blowdown filter core group to form by eight blowdown filter cores, two filter cores often in group communicate with two dirt inlets respectively, the lower end of each filter core is inserted in described filter core tube sheet, sealing ring is provided with between the lower end of each filter core and filter core tube sheet, the first spring is provided with between the upper end of each filter core and cover plate, blowdown turning arm outer wall is connected with rotation water pipe, rotate water pipe and be provided with the radial shower nozzle of multiple rotation, filter cylinder is provided with in housing, rotate radial shower nozzle and be arranged on cartridge interior, water inlet is placed in filter cylinder outside, filter cylinder outside is provided with fixing tangential shower nozzle, rotate water pipe and fix tangential shower nozzle and all communicate with water pipe, the bottom of housing is provided with mud chamber, back purge system is provided with in mud chamber, the bottom of mud chamber is provided with sewage draining exit, the bottom surface of housing is provided with the base of at least two support housings.
Further improvement of the present invention is: the lower end cover of reducing motor axle has index dial, and the lateral surface of index dial is provided with photoelectric sensor.
Further improvement of the present invention is: be all inserted with cleaning board in two dirt inlets, dirt inlet is all stretched out in the top of cleaning board, and the top of cleaning board is provided with the second spring respectively and between the upper end of two dirt inlets.
Further improvement of the present invention is: filter core is two phase stainless steel filter core.
Further improvement of the present invention is: be provided with between delivery port and water pipe into water gate valve and sea water pump.
Further improvement of the present invention is: cover plate is provided with two symmetrically arranged hangers.
The present invention compared with prior art has the following advantages:
1, the installation form of filter core is quick detach fast-assembling form, the bottom of filter core is connected with filter core tube sheet plug-in mounting, between sealed by the sealing ring of " O " type, the top of filter core uses stainless steel spring to compress, effectively improve the dismounting convenience of filter core, install without the need to professional tool is auxiliary;
2, the present invention uses two phase stainless steel to process filter element body and filter screen, filter core adds erosion phenomenon without obviously putting, substantially increase the service life of filter core, two phase stainless steel its interior tissue refinement after treatment and evenly, thus add crystal boundary and phase contact area, the concentration of chromium carbide precipitation can be eliminated, i.e. the degree of poor chromium, avoid the nucleation and growth of spot corrosion, effectively can extend filter core service life in the seawater;
3, increase filter cylinder, i.e. coarse strainer device at water inlet position, effectively stop major part comparatively corase particles, protect the life-span of smart filter core, strengthen backwash effect;
4, after essence has been filtered, by PLC programme-control, backwash process is carried out to filter cylinder, effectively eliminate the dirt stayed in coarse filtration process, available protecting effect is played to filter cylinder, ensure that the stable operation of full-automatic high precision backwash filter;
5, chamber is increased in the bottom of housing, for the precipitation to silt, and be provided with back purge system in mud chamber, self import water resource can be relied on to carry out pressurization recoil blowdown process to bottom sediment, PLC program after coordinating smart filter-core back-flushing to wash carries out cleaning periodically automatically, stop precipitation to harden, thus ensure the stable operation of integral device, reduce the maintenance of equipment;
6, the present invention adopts photo electric sensitive element, coordinate PLC programme-control, greatly strengthen the reliability of equipment, there will not be problem of misalignment after recoil point Default Value, decrease the maintenance issues of equipment, and the programmability of PLC program greatly strengthen the adaptability that boats and ships require backwash, as the time length that recoils, the setting etc. of recoil oscillation cycle, pass electrical sensor apparatus power consumption is little, also plays a role to ship energy saving.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Number in the figure: 1-housing, 2-cover plate, 3-air bleeding valve, 4-delivery port, 5-water inlet, 6-rotary main shaft, 7-reducing motor axle, 8-combines reducing motor, 9-blowdown turning arm, 10-blow-off pipe, 11-dirt inlet, 12-filter core tube sheet, 13-filter core, 14-sealing ring, 15-first spring, 16-rotates water pipe, 17-rotates radial shower nozzle, 18-filter cylinder, 19-fixes tangential shower nozzle, 20-water pipe, 21-mud chamber, 22-back purge system, 23-sewage draining exit, 24-base, 25-index dial, 26-photoelectric sensor, 27-cleaning board, 28-second spring, 29-is intake gate valve, 30-sea water pump, 31-hanger.
detailed description of the invention:
in order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
As Fig. 1 shows a kind of embodiment of full-automatic high precision of the present invention recoil filter, comprise housing 1, the top of housing 1 is provided with cover plate 2, cover plate 2 is provided with air bleeding valve 3, cover plate 2 is provided with two symmetrically arranged hangers 31, the side of the middle and upper part of housing 1 is provided with delivery port 4, the side of the bottom of housing 1 is provided with water inlet 5, center in housing 1 is provided with the rotary main shaft 6 vertically arranged, one end of rotary main shaft 6 is connected with reducing motor axle 7 through cover plate 2, reducing motor axle 7 is connected with combination reducing motor 8, the lower end cover of reducing motor axle 7 has index dial 25, the lateral surface of index dial 25 is provided with photoelectric sensor 26, the other end of rotary main shaft 6 is connected with blowdown turning arm 9, blowdown turning arm 9 lower end is connected with blow-off pipe 10, blow-off pipe 10 is through housing upper 1, blowdown turning arm 9 is provided with two dirt inlets 11, two described dirt inlets 11 are oppositely arranged, cleaning board 27 is all inserted with in two described dirt inlets 11, dirt inlet 11 is all stretched out on the top of cleaning board 27, the top of cleaning board 27 respectively and be provided with the second spring 28 between the upper end of two dirt inlets 11, cleaning board 27 and top filter core tube sheet 12 ensure to seal under the elastic force effect of the second spring 28.Filter core tube sheet 12 is provided with in housing 1, blowdown turning arm 9 outer wall is connected with and rotates water pipe 16, rotate water pipe 16 and be provided with the radial shower nozzle 17 of multiple rotation, filter cylinder 18 is provided with in housing 1, rotate radial shower nozzle 17 and be arranged on filter cylinder 18 inside, it is outside that water inlet 4 is placed in filter cylinder 18, filter cylinder 18 outside is provided with fixing tangential shower nozzle 19, rotate water pipe 16 and fix tangential shower nozzle 19 and all communicate with water pipe 20, be provided with into water gate valve 29 and sea water pump 30 between delivery port 4 and water pipe 20, the bottom of housing 1 is provided with mud chamber 21, back purge system 22 is provided with in mud chamber 21, the bottom of mud chamber 21 is provided with sewage draining exit 23, the bottom surface of housing 1 is provided with the base 24 of at least two support housings 1.
Filter core tube sheet 12 is provided with two groups of blowdown filter core groups, often organize blowdown filter core group to form by eight filter cores 13, eight filter cores 13 are all uniformly distributed centered by rotary main shaft 6, and enclose circle, the radius of a circle that one group of blowdown filter core group encloses is greater than the radius of a circle that another group blowdown filter core group encloses, each filter core 13 is two phase stainless steel filter core, two often in group described filter cores 13 communicate with two dirt inlets 11 respectively, the lower end of each filter core 13 is inserted in filter core tube sheet 12, sealing ring 14 is provided with between the lower end of each filter core 13 and filter core tube sheet 12, the first spring 15 is provided with between the upper end of each filter core 13 and cover plate 2,
The installation form of filter core is quick detach fast-assembling form, the bottom of filter core is connected with filter core tube sheet plug-in mounting, between sealed by the sealing ring of " O " type, the top of filter core uses stainless steel spring to compress, effectively improve the dismounting convenience of filter core, install without the need to professional tool is auxiliary; The present invention uses two phase stainless steel to process filter element body and filter screen, filter core adds erosion phenomenon without obviously putting, substantially increase the service life of filter core, two phase stainless steel its interior tissue refinement after treatment and evenly, thus add crystal boundary and phase contact area, the concentration of chromium carbide precipitation can be eliminated, i.e. the degree of poor chromium, avoid the nucleation and growth of spot corrosion, effectively can extend filter core service life in the seawater; Increase filter cylinder, i.e. coarse strainer device at water inlet position, effectively stop major part comparatively corase particles, protect the life-span of smart filter core, strengthen backwash effect; After essence has been filtered, by PLC programme-control, backwash process is carried out to filter cylinder, effectively eliminated the dirt stayed in coarse filtration process, available protecting effect is played to filter cylinder, ensure that the stable operation of full-automatic high precision backwash filter; Chamber is increased in the bottom of housing, for the precipitation to silt, and be provided with back purge system in mud chamber, self import water resource can be relied on to carry out pressurization recoil blowdown process to bottom sediment, PLC program after coordinating smart filter-core back-flushing to wash carries out cleaning periodically automatically, stop precipitation to harden, thus ensure the stable operation of integral device, reduce the maintenance of equipment; The present invention adopts photo electric sensitive element, coordinate PLC programme-control, greatly strengthen the reliability of equipment, there will not be problem of misalignment after recoil point Default Value, decrease the maintenance issues of equipment, and the programmability of PLC program greatly strengthen the adaptability that boats and ships require backwash, as the time length that recoils, the setting etc. of recoil oscillation cycle, pass electrical sensor apparatus power consumption is little, also plays a role to ship energy saving.
Claims (1)
1. a full-automatic high precision recoil filter, comprise housing (1), the top of described housing (1) is provided with cover plate (2), described cover plate (2) is provided with air bleeding valve (3), the side of the middle and upper part of described housing (1) is provided with delivery port (4), the side of the bottom of described housing (1) is provided with water inlet (5), it is characterized in that: the center in described housing (1) is provided with the rotary main shaft (6) vertically arranged, one end of described rotary main shaft (6) is connected with reducing motor axle (7) through described cover plate (2), described reducing motor axle (7) is connected with combination reducing motor (8), the other end of described rotary main shaft (6) is connected with blowdown turning arm (9), described blowdown turning arm (9) lower end is connected with blow-off pipe (10), described blow-off pipe (10) is through described housing upper (1), described blowdown turning arm (9) is provided with two dirt inlets (11), filter core tube sheet (12) is provided with in described housing (1), described filter core tube sheet (12) is provided with two groups of blowdown filter core groups, often organize described blowdown filter core group to form by eight filter cores (13), two described filter cores (13) often in group communicate with two described dirt inlets (11) respectively, the lower end of each described filter core (13) is inserted in described filter core tube sheet (12), sealing ring (14) is provided with between the lower end of each described filter core (13) and described filter core tube sheet (12), the first spring (15) is provided with between the upper end of each described filter core (13) and described cover plate (2), described blowdown turning arm (9) outer wall is connected with and rotates water pipe (16), described rotation water pipe (16) is provided with the radial shower nozzle of multiple rotation (17), filter cylinder (18) is provided with in described housing (1), it is inner that the radial shower nozzle of described rotation (17) is arranged on described filter cylinder (18), it is outside that described water inlet (5) is placed in described filter cylinder (18), described filter cylinder (18) outside is provided with fixing tangential shower nozzle (19), described rotation water pipe (16) and described fixing tangential shower nozzle (19) all communicate with water pipe (20), the bottom of described housing (1) is provided with mud chamber (21), back purge system (22) is provided with in described mud chamber (21), the bottom of described mud chamber (21) is provided with sewage draining exit (23), the bottom surface of described housing (1) is provided with the base (24) that at least two support described housing (1), the lower end cover of described reducing motor axle (7) has index dial (25), the lateral surface of described index dial (25) is provided with photoelectric sensor (26), cleaning board (27) is all inserted with in two described dirt inlets (11), described dirt inlet (11) is all stretched out on the top of described cleaning board (27), the top of described cleaning board (27) is provided with the second spring (28) respectively and between the upper end of two described dirt inlets (11), described filter core (13) is two phase stainless steel filter core, be provided with into water gate valve (29) and sea water pump (30) between described delivery port (4) and described water pipe (20), described cover plate (2) is provided with two symmetrically arranged hangers (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310163606.2A CN103212232B (en) | 2013-05-07 | 2013-05-07 | Full-automatic high-precision back-flushing filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310163606.2A CN103212232B (en) | 2013-05-07 | 2013-05-07 | Full-automatic high-precision back-flushing filter |
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| Publication Number | Publication Date |
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| CN103212232A CN103212232A (en) | 2013-07-24 |
| CN103212232B true CN103212232B (en) | 2015-07-22 |
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| CN201310163606.2A Active CN103212232B (en) | 2013-05-07 | 2013-05-07 | Full-automatic high-precision back-flushing filter |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104436792B (en) * | 2014-11-26 | 2016-09-28 | 秦皇岛首创思泰意达环保科技有限公司 | A kind of explosion-proof type gas control full-automatic back washing filter |
| RU2592631C1 (en) * | 2015-04-20 | 2016-07-27 | Ильюхин Владимир Владимирович | Automatic regenerated filter |
| CN108744660A (en) * | 2018-05-23 | 2018-11-06 | 海宁鼎合工程技术开发有限公司 | A kind of novel vertical industry water purifier with backwashing function |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0910520A (en) * | 1995-06-30 | 1997-01-14 | Kitou Kogyo Kk | Filter |
| JP2001170416A (en) * | 1999-12-20 | 2001-06-26 | Kanagawa Kiki Kogyo Kk | Back washing filtering machine |
| DE202005019664U1 (en) * | 2005-12-14 | 2007-02-01 | Boll & Kirch Filterbau Gmbh | Pressure candle filter for continuous flow liquids has efficient cleaning by sequential back-flushing of pairs of candle elements and use of venturi type inducer on flush outlet |
| KR100916650B1 (en) * | 2009-01-22 | 2009-09-08 | 주식회사 청호엔텍 | An auto strainer with knockdown distributor |
| CN202146661U (en) * | 2011-07-01 | 2012-02-22 | 南通海狮船舶机械有限公司 | Full-automatic back washing water filter |
| CN102416270A (en) * | 2011-11-02 | 2012-04-18 | 重庆大学 | One-piece self-cleaning stage filter |
| CN102515400A (en) * | 2011-12-21 | 2012-06-27 | 青岛双瑞海洋环境工程股份有限公司 | High-efficiency treatment method of ballast water in ship |
| CN102553322A (en) * | 2010-12-17 | 2012-07-11 | 江苏宝宸净化设备有限公司 | Centrifugal self-cleaning filter |
| CN102784504A (en) * | 2012-08-26 | 2012-11-21 | 河北北洋水处理设备有限公司 | Automatic backwashing system in filtering device with multi filter drums |
| CN102989223A (en) * | 2012-12-04 | 2013-03-27 | 南通海利源船舶设备工程有限公司 | Automatic backwash filtering device |
| WO2013054964A1 (en) * | 2011-10-13 | 2013-04-18 | 주식회사 파나시아 | High-efficiency candle-type device for filtering ballast water having high-density filter structure |
-
2013
- 2013-05-07 CN CN201310163606.2A patent/CN103212232B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0910520A (en) * | 1995-06-30 | 1997-01-14 | Kitou Kogyo Kk | Filter |
| JP2001170416A (en) * | 1999-12-20 | 2001-06-26 | Kanagawa Kiki Kogyo Kk | Back washing filtering machine |
| DE202005019664U1 (en) * | 2005-12-14 | 2007-02-01 | Boll & Kirch Filterbau Gmbh | Pressure candle filter for continuous flow liquids has efficient cleaning by sequential back-flushing of pairs of candle elements and use of venturi type inducer on flush outlet |
| KR100916650B1 (en) * | 2009-01-22 | 2009-09-08 | 주식회사 청호엔텍 | An auto strainer with knockdown distributor |
| CN102553322A (en) * | 2010-12-17 | 2012-07-11 | 江苏宝宸净化设备有限公司 | Centrifugal self-cleaning filter |
| CN202146661U (en) * | 2011-07-01 | 2012-02-22 | 南通海狮船舶机械有限公司 | Full-automatic back washing water filter |
| WO2013054964A1 (en) * | 2011-10-13 | 2013-04-18 | 주식회사 파나시아 | High-efficiency candle-type device for filtering ballast water having high-density filter structure |
| CN102416270A (en) * | 2011-11-02 | 2012-04-18 | 重庆大学 | One-piece self-cleaning stage filter |
| CN102515400A (en) * | 2011-12-21 | 2012-06-27 | 青岛双瑞海洋环境工程股份有限公司 | High-efficiency treatment method of ballast water in ship |
| CN102784504A (en) * | 2012-08-26 | 2012-11-21 | 河北北洋水处理设备有限公司 | Automatic backwashing system in filtering device with multi filter drums |
| CN102989223A (en) * | 2012-12-04 | 2013-03-27 | 南通海利源船舶设备工程有限公司 | Automatic backwash filtering device |
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