CN203389401U - Labyrinth type filtering net synchronous high-pressure backwashing and self-cleaning filter for treating ballast water - Google Patents
Labyrinth type filtering net synchronous high-pressure backwashing and self-cleaning filter for treating ballast water Download PDFInfo
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- CN203389401U CN203389401U CN201320411318.XU CN201320411318U CN203389401U CN 203389401 U CN203389401 U CN 203389401U CN 201320411318 U CN201320411318 U CN 201320411318U CN 203389401 U CN203389401 U CN 203389401U
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Abstract
The utility model provides a labyrinth type filtering net synchronous high-pressure backwashing and self-cleaning filter for treating ballast water. The labyrinth type filtering net synchronous high-pressure backwashing and self-cleaning filter comprises a filter cavity provided with a water inlet and a water outlet, wherein a labyrinth type filtering net unit is coaxially arranged in the filter cavity; a high-pressure backwashing mechanism is arranged on the outer side of the labyrinth type filtering net unit; a washing mechanism is arranged at the center of the filter cavity; a backwashing cavity is coaxially connected with the filter cavity by a blow-off cavity; a washing driving mechanism is coaxially arranged on the outer side of the backwashing cavity and is connected with the washing mechanism. According to the device provided by the utility model, the disadvantages of the prior art are overcome; an inner space of the self-cleaning filter is utilized effectively by the labyrinth type filtering net unit; the space occupation of an overall dimension of the filter is reduced under the precondition of guaranteeing the treatment effect of a ballast water treatment system; a synchronous high-pressure backwashing and self-cleaning manner is adopted so that the washing effect of a filtering net of the filter is improved obviously and the stability of system operation is improved.
Description
Technical field
The utility model relates to the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment, belongs to the self-cleaning filter technical field of ship ballast water treatment system.
Background technology
Boats and ships are safe navigation at sea, according to the stability of the Container Loading state of boats and ships and boats and ships self, need load a certain amount of ballast, and its effect is to guarantee that boats and ships have good stability, and boats and ships generally adopt seawater as ballast, are referred to as ballast water for ship.
Ballast water for ship has stronger mobility, thisly just with shipping flowing mode, make adventive multiply soon growth arriving waters easily, once these biologies are invaded new suitable existence region, in the situation that lacking natural enemy, mad breeding, and then occupy the growth waters of local species or directly destroy its living environment, thereby cause the disappearance of local species and weaken, make the fishery of harbour periphery suffer havoc, the marine ecology balance of heavy damage locality, causes huge economic loss to locality.
Under this background; International Maritime Organization (IMO) has promulgated " about ballast water for ship and sediment monitoring and management contract " in 2004, requirements of convention whole world environmental protection foundation classifies the marine site cross pollution causing without control discharge ballast water for ship because of boats and ships one of as ocean four large harm.For this reason, pact mandatory provision, by 2017, all foreign-going ships that ballast water treatment system is not installed all must not sail IMO member state harbour into, otherwise imposed sanction and punish by violating pact.
At present, self-cleaning filter is widely used in ballast for cruising water treatment, and it simply designs and good performance makes seawater reach best treatment effect.Self-cleaning filter is used for tackling seawater compared with mcroorganism body and deposit, improves the light transmittance of water.When operation pressure reduction reaches setting value, or while reaching systemic presupposition scavenging period interval, self-cleaning filter cleans automatically.Filter process can be tackled all biology and deposits that are more than or equal to filtering accuracy, and is expelled back into former dry point, does not cause the strange land of trapped substance to shift.
Common self-cleaning filter as shown in Figure 1.Seawater enters cylindrical shell 1 by entrance 2, after filter screen 4 filters, by outlet 3, is discharged.It uses individual layer filter screen, drives built-in suction nozzle to move carry out soil pick-up, complete the cleaning that filter screen cuts dirty face by wiper mechanism driving mechanism.There is following deficiency in such filter:
1) individual layer filter screen, the effective filter space utilization rate of filter interior is not fully used;
2) the filter medium circulation area in unit volume do not have be effectively played, the disposal ability of equipment do not have be effectively played;
3) invalid filter space takies, and causes the volume of filter cavity to increase; Thereby cause equipment volume to increase, appearance and size increases, and installing space increases;
4) increase of equipment volume and appearance and size, under equal conditions, causes apparatus body weight to increase, thereby causes equipment cost to increase.
5) only there is single suction nozzle cleaning blowdown, for stubborn and stupid dirt, clean not thorough, cleaning performance is poor, causes filtering traffic significantly to reduce, thereby cause system to be filtered, interrupts stopping transport, can only after splitting out filter screen, take the mode of manual cleaning to carry out the performance recovery of filter screen, difficult in maintenance, clean labour intensity large, impact is produced.
Utility model content
When the technical problems to be solved in the utility model is to provide a kind of cleaning performance and improves, volume reduces, and good stability, the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for ballast water treatment easy to maintenance.
In order to solve the problems of the technologies described above, the technical solution of the utility model is to provide the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment, it is characterized in that: comprise the filter cavity that contains water inlet and delivery port, labyrinth type filter screen unit is with being located in filter chamber body, labyrinth type filter screen unit outside is provided with high pressure recoil mechanism, filter cavity center is provided with wiper mechanism, recoil chamber is coaxially connected with filter cavity by blowdown chamber, cleans driving mechanism with being located in outside, recoil chamber and being connected with wiper mechanism.
Preferably, in described labyrinth type filter screen unit, be provided with at least two-layer filter screen.
Preferably, described high pressure recoil mechanism is provided with high pressure nozzle, and described wiper mechanism is provided with negative pressure suction nozzle, and outside and the inner side of described labyrinth type filter screen unit Inner filter net arranged and be located at respectively to high pressure nozzle and negative pressure suction nozzle in opposite directions; High pressure nozzle is connected with described recoil chamber by pressure duct, and negative pressure suction nozzle is connected with described blowdown chamber by the central shaft of described wiper mechanism.
Preferably, described recoil chamber is provided with backwash water inlet.
Preferably, described blowdown chamber is provided with sewage draining exit.
Preferably, described cleaning driving mechanism is provided with position probing instrument.
Preferably, described filter cavity is provided with water inlet and delivery port.
Preferably, described filter cavity upper end is also provided with exhaust outlet.
Preferably, the two ends of pressure differential detection instrument connect respectively described filter screen both sides.
During use, the high-pressure water being entered by backwash water inlet, enters high pressure recoil mechanism through recoil chamber, for system provides high pressure backwash water source, and through high pressure nozzle, screen surface is recoiled; By high pressure back flushing nozzle, washed away the filter screen trapped substance of tearing, by the negative pressure suction nozzle of position in opposite directions, received, by local decompression's current of negative pressure suction nozzle suction inlet, sucked the central shaft tube of wiper mechanism, through blowdown chamber, by sewage draining exit, excreted.
Clean driving mechanism and synchronously drive through the central shaft tube of wiper mechanism, with the high pressure nozzle of dynamic high-pressure back-washing machine structure, and the negative pressure suction nozzle run-in synchronism of wiper mechanism, realize and clean transmission process.By pressure differential detection instrument, carried out the real-time detection of strainer filtering pressure reduction, control signal is provided, press the signal controlling point of default, trigger and clean recoil motion, and detect position signalling is provided by position probing instrument, realize Stroke Control and the rotating control of cleaning driving mechanism, complete cleaning process.Cleaning process does not affect normally carrying out of system filter process, can not cause system to filter the interruption of operation.
The synchronous high pressure of the labyrinth type synchronous self-cleaning filter that recoils for the ballast water treatment that the utility model provides, compared to existing technology, has following beneficial effect:
1) filter area significantly improves, and equipment filtration treatment ability significantly improves.Under the suitable condition of filter cavity size, compare with conventional filter, adopt the filter of labyrinth type filter screen, filter area will improve 2.25～2.40 times; According to unit are filtration flux, calculate, theoretical treatment ability with this understanding will improve 2.25～2.40 times.
2) higher inside useful space utilization rate.Compare with traditional self-cleaning filter, labyrinth type filter screen high pressure recoil self-cleaning filter, inner useful space utilization rate has improved 22%～29%.
3) under the identical condition of disposal ability, adopt the cavity size of the high pressure recoil self-cleaning filter of labyrinth type filter screen will obviously reduce than the cavity size of traditional self-cleaning filter, the space hold of equipment obviously reduces;
4), in the situation that disposal ability is identical, reducing of equipment size, will bring the reduction of device fabrication cost.
5) compare with traditional self-cleaning filter, high pressure recoil self-cleaning filter is containing high pressure back purge system, filter gauze cleaning is more thorough, adapts to severe water quality and especially the cleaning performance of viscoloid impurity is significantly improved, and the stability of system operation is significantly improved.
The device that the utility model provides has overcome the deficiencies in the prior art, by labyrinth type filter screen unit, effectively utilize the space of self-cleaning filter inside, under the prerequisite for the treatment of effect that guarantees ballast water treatment system, reduced the appearance and size space hold of filter; And adopt synchronous high pressure recoil self-cleaning means, make filter filter gauze cleaning effect be improved significantly, improved the stability of system operation.
Accompanying drawing explanation
Fig. 1 is traditional self-cleaning filter schematic diagram;
The synchronous high pressure recoil of the labyrinth type filter screen self-cleaning filter schematic diagram for ballast water treatment that Fig. 2 provides for the utility model;
Fig. 3 is the filter screen dimensional drawing of traditional self-cleaning filter;
Fig. 4 is the filter screen schematic diagram of labyrinth type filter screen unit.
The specific embodiment
For the utility model is become apparent, hereby with a preferred embodiment, and coordinate accompanying drawing to be described in detail below.
The synchronous high pressure recoil of the labyrinth type filter screen self-cleaning filter schematic diagram for ballast water treatment that Fig. 2 provides for the utility model, described ballast water treatment comprises with the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter the filter cavity 5 that contains water inlet 18 and delivery port 16, labyrinth type filter screen unit 6 is coaxially arranged in filter cavity 5, high pressure recoil mechanism 7 is equipped with in labyrinth type filter screen unit 6 outsides, wiper mechanism 8 is equipped with at filter cavity 5 centers, and recoil chamber 10 is coaxially connected with filter cavity 5 by blowdown chamber 9.Clean driving mechanism 11 and be contained in recoil 10 outsides, chamber, for driving wiper mechanism 8.
Filter screen in labyrinth type filter screen unit 6 is multilayer labyrinth type structure.In high pressure recoil mechanism 7, high pressure nozzle 14 is housed, negative pressure suction nozzle 15 is housed on wiper mechanism 8, high pressure nozzle 14 is positioned at the outside of labyrinth type filter screen unit 6 Inner filter nets, and negative pressure suction nozzle 15 is positioned at the inner side of labyrinth type filter screen unit 6 Inner filter nets, and high pressure nozzle 14 is arranged in opposite directions with negative pressure suction nozzle 15.By pressure duct, high pressure nozzle 14 and recoil chamber 10 are contacted to perforation, form recoil mechanism; Central shaft by wiper mechanism 8 contacts perforation by negative pressure suction nozzle 15 and blowdown chamber 9, forms pollution discharge mechanism.
The high-pressure water being entered by backwash water inlet 17, enters high pressure recoil mechanism 7 through recoil chamber 10, for system provides high pressure backwash water source, and recoils through 14 pairs of screen surface of high pressure nozzle; By high pressure back flushing nozzle 14, washed away the filter screen trapped substance of tearing, by negative pressure suction nozzle 15 receivings of position in opposite directions, by local decompression's current of negative pressure suction nozzle 15 suction inlets, sucked the central shaft tube of wiper mechanism 8, through blowdown chamber 9, by sewage draining exit 19, excreted.
Clean driving mechanism 11 and synchronously drive through the central shaft tube of wiper mechanism 8, with the high pressure nozzle 14 of dynamic high-pressure back-washing machine structure 7, and negative pressure suction nozzle 15 run-in synchronisms of wiper mechanism 8, realize and clean transmission process.By pressure differential detection instrument 13, carried out the real-time detection of strainer filtering pressure reduction, control signal is provided, press the signal controlling point of default, trigger and clean recoil motion, and detect position signalling is provided by position probing instrument 12, realize Stroke Control and the rotating control of cleaning driving mechanism 11, complete cleaning process.Cleaning process does not affect normally carrying out of system filter process, can not cause system to filter the interruption of operation.
To sum up, the synchronous high pressure recoil of the labyrinth type filter screen self-cleaning filter that the utility model provides has following feature:
1. in filter cavity inside, be provided with labyrinth type filter screen unit, filter screen adopts labyrinth type layout pattern;
2. labyrinth type filter screen outside is provided with high pressure nozzle;
3. labyrinth type filter screen inner side is provided with negative pressure suction nozzle;
4. adopt high pressure backwashing technology to carry out backwash to screen surface;
5. adopt in opposite directions and remove with one-step site negative pressure suction nozzle the trapped substance that filter screen cuts dirty face;
6. adopt the recoil of Driven by Coaxial high pressure and synchronize negative pressure soil pick-up and remove contamination;
7. independently blowdown chamber and wiper mechanism are coaxially installed, and are placed in outside filter cavity;
8. independently high pressure recoil chamber and high pressure recoil mechanism coaxially install, and high pressure Back-flushing apparatus is set up the outside of labyrinth type filter screen in filter cavity, and high pressure recoil chamber is positioned at outside filter cavity, adjacent with blowdown chamber;
9. by pressure duct, high pressure nozzle and recoil chamber are contacted to perforation, form recoil mechanism;
10. by central shaft, negative pressure suction nozzle and blowdown chamber are contacted to perforation, form pollution discharge mechanism;
11 pressure differential detection instrument detect filter screen both sides pressure reduction, and pressure reduction control signal is provided;
12. position probing instrument are located at and are cleaned on transmission mechanism, control stroke and the rotating operation of cleaning with backwash mechanism.
The ballast water treatment that the utility model provides can guarantee under different operating modes with the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter, seawater enters labyrinth type filter screen high pressure recoil self-cleaning filter cavity by water inlet, through labyrinth type filter screen unit, filter, filter screen unit is by aquatile and the deposit of filtering accuracy scope in trap water, along with the gathering in filter screen unit one side of the various aquatiles that are trapped and deposit, form filter cake and cause the increase of strainer filtering resistance, and form filter screen pressure reduction; When this pressure reduction reaches predetermined value, by the detection signal of pressure differential detection instrument, system controller will start cleaning high pressure backwash mechanism automatically, be arranged in opposite directions the high pressure nozzle of filter screen both sides and negative pressure suction nozzle by under the drive of wiper mechanism, work in coordination with and back and forth synchronously axially move horizontally and rotatablely move, complete cleaning scanning motion; Under the effect of tearing of the recoil power of high pressure nozzle, adhesion impurity and the formed filter cake of other dirt being trapped are peeled off from screen surface, and the dirt being stripped from by the timely sucking-off of negative pressure suction nozzle of installing in opposite directions, and excretes with blowoff line.Suction nozzle negative pressure is the pressure reduction due to inside cavity system static pressure and cavity sewage draining exit end low pressure, at the local current that produce of suction nozzle, forms local decompression.The power of high pressure recoil, within can coming from system, aspirates a small amount of filter process water outlet by high-pressure pump, and then returns to high pressure counter-flushing pipeline, turns back to filter cavity inner through high pressure nozzle; Also can come from outside apparatus body, by external pressure system, provide the needed power of backwash to recoil, also can control external air source and recoil.Recoil self-cleaning process, does not affect the normal filtration of equipment, can not cause the interruption of equipment operation.
Lower mask body is set forth the advantage of the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for ballast water treatment.
A) advantage of labyrinth type filter screen unit:
In conjunction with Fig. 3 and Fig. 4, in the situation that filter cavity size is consistent, the ballast water treatment that traditional self-cleaning filter is provided with the utility model is synchronizeed high pressure recoil self-cleaning filter with labyrinth type filter screen and is carried out the comparative descriptions of filter area.
In Fig. 3 and Fig. 4, L-cylindrical shell length, D-barrel diameter, l-filter screen length, d-outer filter diameter, g-outer filter and interlayer screen spacing or interlayer screen and inner filter screen spacing.
(a) the strainer filtering area S:S=π * d*l of traditional self-cleaning filter
(b) the filter area S ' of labyrinth type filter screen unit:
Outer filter area S1=π * d*l;
Interlayer screen area S2=π * (d-2g) * l;
Inner filter screen area S3=π * (d-4g) * l;
Filtration gross area S '=S1+S2+S3=π * d*l+ π * (d-2g) * l+ π * (d-4g) * l of labyrinth type filter screen unit;
If choose g=1/8d～1/10d,
S '=2.25 π * d*l～2.40 π * d*l.
(c) ratio of the filter area of labyrinth type filter screen unit and traditional strainer filtering area:
S’/S＝2.25～2.40。
Conclusion: in the situation that filter cavity is measure-alike, the filter area of labyrinth type filter screen unit is 2.25～2.40 times of traditional filter screen, filter medium circulation area increases with the obvious advantage.
(d) in unit volume, labyrinth type filter area and the contrast of traditional filter screen area:
(S '/V '): (S/V)=2.25～2.40, wherein V is conventional filter volume, V ' is labyrinth type filter volume, simultaneously V '=V.Be that effective filtration area in the unit volume of labyrinth type filter is 2.25～2.40 times of plain edition filter.
(e) situation that takies of idle space contrast in filter
If effective filter thickness of screen surface one side is g/2,
The shared volume of idle space of individual layer filter screen is t1: t1=[π * (d-g) * l]/(π * d*l);
The shared volume of idle space of labyrinth type filter screen is t2: t2=[π * (d-3g) * l]/(π * d*l)
Get g=1/8d～1/10d
T2/t1=0.71～0.78.
Conclusion: in unit volume, labyrinth type filter Inner filter net area is 2.25～2.40 times of traditional filter.Therefore, the useful space utilization rate of labyrinth type filter is 2.25～2.40 times of traditional filter, and useful space utilization rate has improved 22%～29%; In other words, in the situation that disposal ability is identical, taking up room of labyrinth type filter has clear superiority than traditional filter.
B) advantage that high pressure recoil combines with negative pressure suction nozzle:
Self-cleaning filter is used for tackling seawater compared with mcroorganism body and deposit, improves the light transmittance of water.When operation pressure reduction reaches setting value, or while reaching systemic presupposition scavenging period interval, self-cleaning filter cleans automatically.Filter process can be tackled all biology and deposits that are more than or equal to filtering accuracy, and is expelled back into former dry point, does not cause the strange land of trapped substance to shift.
But traditional filter only adopts single suction nozzle cleaning, exist following not enough: single suction nozzle cleaning blowdown, for stubborn and stupid dirt, clean not thorough, especially to adhering impurity, cleaning performance is poor, causes filtering traffic significantly to reduce, thereby cause system to be filtered, interrupts stopping transport, can only after splitting out filter screen, take the mode of manual cleaning to carry out the performance recovery of filter screen, difficult in maintenance, clean labour intensity large, impact is produced.
The mode that high pressure nozzle combines with negative pressure suction nozzle of the adopting labyrinth type filter self-cleaning that recoils, it is advantageous that: labyrinth type filter utilizes high pressure nozzle to combine and carry out automatic backwash with negative pressure suction nozzle, wherein high pressure nozzle and negative pressure suction nozzle are one-to-one relationship, in not stopping pregnancy water in the situation that, utilize the seawater after a small amount of filtration to carry out high pressure backwash as backwashing water, backwashing water sees through filter screen unit, together with the trapped substance of peeling off from filter screen unit, by negative pressure suction nozzle, sucked rapidly blowdown chamber, finally by sewage draining exit, be expelled back into former dry point.
C) the synchronous high pressure of the labyrinth type synchronous self-cleaning filter that recoils for the ballast water treatment that the utility model provides, compared to existing technology, has following beneficial effect:
6) filter area significantly improves, and equipment filtration treatment ability significantly improves.Under the suitable condition of filter cavity size, compare with conventional filter, adopt the filter of labyrinth type filter screen, filter area will improve 2.25～2.40 times; According to unit are filtration flux, calculate, theoretical treatment ability with this understanding will improve 2.25～2.40 times.
7) higher inside useful space utilization rate.Compare with traditional self-cleaning filter, labyrinth type filter screen high pressure recoil self-cleaning filter, inner useful space utilization rate has improved 22%～29%.
8) under the identical condition of disposal ability, adopt the cavity size of the high pressure recoil self-cleaning filter of labyrinth type filter screen will obviously reduce than the cavity size of traditional self-cleaning filter, the space hold of equipment obviously reduces;
9), in the situation that disposal ability is identical, reducing of equipment size, will bring the reduction of device fabrication cost.
10) compare with traditional self-cleaning filter, high pressure recoil self-cleaning filter is containing high pressure back purge system, filter gauze cleaning is more thorough, adapts to severe water quality and especially the cleaning performance of viscoloid impurity is significantly improved, and the stability of system operation is significantly improved.
The ballast water treatment that the utility model provides is passed through the use of labyrinth type filter screen unit with the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter, reasonably utilize the useful space of filter cavity inside, effectively increase the filter area of strainer screen, thereby reach the disposal ability of effective increase equipment, reduce the object of the space hold of filter apparatus.By Synchronous High voltage backwashing technology, strainer screen is thoroughly cleaned simultaneously, avoid the dirt of the stubborn and stupid dirts such as colloid stickiness impurity stifled.Realization, under the condition of same filter cylindrical shell size, has larger filter area, larger disposal ability; Or under identical disposal ability condition, integral device has less size, space hold still less; Thereby reach, increase disposal ability or reduce equipment occupation space or the object of reduction device fabrication cost.
Labyrinth type filter screen high pressure recoil self-cleaning filter for a kind of ballast water treatment that the utility model provides, overcome existing self-cleaning filter filter area little, take up room large, the limited deficiency that waits of disposal ability, by the design of labyrinth type filter screen unit, effectively utilized the space of self-cleaning filter inside, under the prerequisite for the treatment of effect that guarantees ballast water treatment system, reduced the appearance and size space hold of filter.And adopt synchronous high pressure recoil self-cleaning means, make filter filter gauze cleaning effect be improved significantly, improved the stability of system operation.
Claims (9)
1. the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a ballast water treatment, it is characterized in that: comprise filter cavity (5), labyrinth type filter screen unit (6) is with being located in filter chamber body (5), labyrinth type filter screen unit (6) outside is provided with high pressure recoil mechanism (7), filter cavity (5) center is provided with wiper mechanism (8), recoil chamber (10) is coaxially connected with filter cavity (5) by blowdown chamber (9), cleans driving mechanism (11) with being located in outside, recoil chamber (10) and being connected with wiper mechanism (8).
2. the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment as claimed in claim 1, is characterized in that: in described labyrinth type filter screen unit (6), be provided with at least two-layer filter screen.
3. the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment as claimed in claim 1, it is characterized in that: described high pressure recoil mechanism (7) is provided with high pressure nozzle (14), described wiper mechanism (8) is provided with negative pressure suction nozzle (15), and high pressure nozzle (14) arranges and be located at respectively outside and the inner side of described labyrinth type filter screen unit (6) Inner filter net in opposite directions with negative pressure suction nozzle (15); High pressure nozzle (14) is connected with described recoil chamber (10) by pressure duct, and negative pressure suction nozzle (15) is connected with described blowdown chamber (9) by the central shaft of described wiper mechanism (8).
4. the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment as claimed in claim 1, is characterized in that: described recoil chamber (10) is provided with backwash water inlet (17).
5. the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment as claimed in claim 1, is characterized in that: described blowdown chamber (9) is provided with sewage draining exit (19).
6. the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment as claimed in claim 1, is characterized in that: described cleaning driving mechanism (11) is provided with position probing instrument (12).
7. the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment as claimed in claim 1, is characterized in that: described filter cavity (5) is provided with water inlet (18) and delivery port (16).
8. the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment as described in claim 1 or 7, is characterized in that: described filter cavity (5) upper end is also provided with exhaust outlet (20).
9. the synchronous high pressure recoil of labyrinth type filter screen self-cleaning filter for a kind of ballast water treatment as claimed in claim 2, is characterized in that: the two ends of pressure differential detection instrument (13) connect respectively described filter screen both sides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411318.XU CN203389401U (en) | 2013-07-10 | 2013-07-10 | Labyrinth type filtering net synchronous high-pressure backwashing and self-cleaning filter for treating ballast water |
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| CN201320411318.XU CN203389401U (en) | 2013-07-10 | 2013-07-10 | Labyrinth type filtering net synchronous high-pressure backwashing and self-cleaning filter for treating ballast water |
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| CN203389401U true CN203389401U (en) | 2014-01-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316520A (en) * | 2013-07-10 | 2013-09-25 | 上海船研环保技术有限公司 | Labyrinth type filter net synchronous high-pressure backwashing and self-cleaning filter for ballast water treatment |
| CN110361184A (en) * | 2019-08-13 | 2019-10-22 | 江苏电力装备有限公司 | Test the pilot system of drum type filter screen performance |
| CN114225504A (en) * | 2021-12-29 | 2022-03-25 | 安徽伏碳科技有限公司 | Small-size pure water preparation is with pressurization filter equipment |
-
2013
- 2013-07-10 CN CN201320411318.XU patent/CN203389401U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316520A (en) * | 2013-07-10 | 2013-09-25 | 上海船研环保技术有限公司 | Labyrinth type filter net synchronous high-pressure backwashing and self-cleaning filter for ballast water treatment |
| CN110361184A (en) * | 2019-08-13 | 2019-10-22 | 江苏电力装备有限公司 | Test the pilot system of drum type filter screen performance |
| CN110361184B (en) * | 2019-08-13 | 2024-03-01 | 江苏电力装备有限公司 | Test system for testing performance of drum filter screen |
| CN114225504A (en) * | 2021-12-29 | 2022-03-25 | 安徽伏碳科技有限公司 | Small-size pure water preparation is with pressurization filter equipment |
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| CX01 | Expiry of patent term |
Granted publication date: 20140115 |