CN203678036U - Bidirectional internal channel self-pressurizing fiber filter - Google Patents
Bidirectional internal channel self-pressurizing fiber filter Download PDFInfo
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- CN203678036U CN203678036U CN201420038130.XU CN201420038130U CN203678036U CN 203678036 U CN203678036 U CN 203678036U CN 201420038130 U CN201420038130 U CN 201420038130U CN 203678036 U CN203678036 U CN 203678036U
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Abstract
The utility model provides a bidirectional internal channel self-pressurizing fiber filter which comprises a tank body. A liquid inlet, a drain outlet, a purified liquor outlet, and a backwashing connector are arranged on the tank body, a dual-channel mandrel comprising a channel I and a channel II is arranged in the tank body, through holes are formed in the side walls of the channel I and the channel II, and the bottom end of the channel II is communicated with the drain outlet. A limit plate and a compaction piston sleeve the dual-channel mandrel, the compaction piston comprises a connecting sleeve, an upper pushing plate and a lower pushing plate are connected to the connecting sleeve, through holes are formed in the side walls of the upper pushing plate and the connecting sleeve, and the limit plate, the upper pushing plate and the lower pushing plate are used for separating the interior of the tank body into four cavities. When the compaction piston upwards moves along the dual-channel mandrel, the cavity IV can be sequentially communicated with the through holes in the channel II and the channel I, and when the cavity IV and the cavity III are communicated with the channel I simultaneously, the compaction piston stops upwards moving, and the through hole in the uppermost end of the channel I is located below the upper pushing plate. The bidirectional internal channel self-pressurizing fiber filter does not require a hydraulic system and a drive device, and is small in size and low in cost.
Description
Technical field
The utility model relates to a kind of fabric filter, and particularly a kind of two-way internal channel is from pressor fibers filter.
Background technology
The fabric filter of prior art all needs to adopt extra hydraulic system and the drive unit of configuration liquid is filtered and backwash, so not only cause the manufacturing cost of fabric filter high, energy consumption is large, due to hydraulic system and drive unit is not corrosion-resistant, stability and the reliability of strainability and problem the reduced filter such as applied environment is limited, maintainability is poor, maintenance work is loaded down with trivial details.Because whole filter volume is larger, also need the larger space of laying simultaneously, brought inconvenience to production.
Summary of the invention
The utility model provides a kind of two-way internal channel from pressor fibers filter, object is to solve prior art problem, provide one not need hydraulic system and drive unit, only need the fabric filter that self pressure can work, not only can reduce manufacturing cost, energy consumption are little, improve filter stability and reliability, and easy to maintenance, take up an area little.
The utility model deal with problems adopt technical scheme be:
Two-way internal channel is from pressor fibers filter, comprise a tank body, tank body is provided with inlet, sewage draining exit, purified liquor outlet and backwash interface, in tank body, be provided with fiber filtering, in tank body, be provided with a binary channels axle, the axis body inside of binary channels axle has vertically two confined spaces and forms passage one, passage two, longitudinally offers at least two through holes on the sidewall of passage one, on the sidewall of passage two, offer at least one through hole, and passage two bottoms are connected with sewage draining exit; Binary channels axle is outer limiting plate and the clamping piston with sieve aperture that be arranged with from top to bottom, and limiting plate maintains static, and clamping piston can move up and down along binary channels axle; Described clamping piston comprises an adapter sleeve, adapter sleeve is sheathed on binary channels axle outward and can moves up and down along it, on adapter sleeve, be fixedly connected with push pedal, lower push pedal, wherein go up on push pedal plate face and offer several through holes, be positioned on the adapter sleeve sidewall between push pedal and lower push pedal and offer at least one through hole; Limiting plate, upper push pedal, lower push pedal will be separated into cavity one, cavity two, cavity three, cavity four in tank body, wherein purified liquor outlet, backwash interface are connected with cavity one respectively, and fiber filtering is placed in cavity two, and inlet is connected with cavity four; In the time that clamping piston moves up along binary channels axle, the cavity four of tank body can be connected with passage two, passage one successively, and wherein, in the time that cavity four, the cavity three of tank body are connected with passage one simultaneously, clamping piston stops moving up.
In the time that clamping piston moves up along binary channels axle, when the cavity four of tank body is connected with the partial through holes of passage one, when the through hole on adapter sleeve is connected with the partial through holes on passage one simultaneously, clamping piston stops moving up.
Be opened in passage one through hole topmost and be positioned at push pedal below.
Described axis body is a hollow tube, in hollow tube, be provided with successively from top to bottom sealing plate one, sealing plate two, sealing plate three, hollow tube inside is divided into space one, space two, space three, space four by three sealing plates, and wherein space two is passage one, and space four is passage two.
The upper and lower two ends of sidewall of passage one are respectively equipped with one group of through hole, each group through hole all at least comprises several through holes, and several through holes of each group are all evenly offered along hollow tube wall circumference for one week, and in the time that the through hole of lower end is communicated with cavity four, the through hole of upper end is connected with adapter sleeve through hole.
On adapter sleeve, comprise several through holes, several through holes are evenly offered along connecting jacket wall for one week.
Space one is not all connected with purified liquor outlet and backwash interface.
Be provided with seal groove in lower push pedal neighboring, in seal groove, be provided with sealing ring.
Adapter sleeve bottom is provided with a step axle head, and step axle head inner side has seal groove, is provided with sealing ring in seal groove.
On tank body, also offer little sewage draining exit, this little sewage draining exit is connected with cavity four.
Tank body below is provided with support.
The beneficial effects of the utility model: the invention, in the compression stage, is a closed system in tank body cavity four, are not connected with other three cavitys of tank body, liquid enters from inlet, under the promotion of liquid, clamping piston moves up along binary channels axle, and fiber filtering is compressed.This process becomes supercharging mechanism by swaging in liquid to be filtered, utilizes filtration fluid to realize the stable formation to fiber medium filter bed from pressure.In the time that cavity four, cavity three, the passage one of tank body are connected, compression piston stops mobile, and liquid flows through passage one, cavity three successively from cavity four, and is entered in fiber filtering and filtered by the through hole of upper push pedal, clear liquid after filtration is discharged from purified liquor outlet, completes filtration.
When backwash, sewage draining exit is opened, and now the cavity four of tank body communicates with the external world, there is no pressure, does not need external drive unit, and the weight of only utilizing cleaning fluid self is by clamping piston to pressing down, and reverse disintegration fiber filtering layer, cleans fiber filtering.
The invention utilization is filtered fluid and is realized the stable formation to fiber medium filter bed from pressure, effectively utilize filtering feature and the backwash characteristic of filter, set up in filter interior be mutually related two-way multi-channel supercharging, pressure relief system, effectively realize normal filtration and the backwash of fiber medium, ensure that fabric filter is in realizing high throughput, volume dwindles greatly, has reduced the space of laying of manufacturing cost and equipment.Meanwhile, filter does not need to configure hydraulic system, has cancelled external drive unit, and maintenance work is simplified greatly, and energy consumption significantly reduces, and the stability of filter and reliability improve.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is another kind of structural representation of the present utility model;
Fig. 3 is the utility model working state figure one;
Fig. 4 is the utility model working state figure two;
Fig. 5 is the utility model working state figure three.
In figure: 1. tank body, 10. cavity one, 11. cavitys two, 12. cavitys three, 13. cavitys four;
2. purified liquor outlet, 3. backwash interface, 4. inlet, 5. sewage draining exit, 51. little sewage draining exits;
6. binary channels axle, 60. hollow tubes, 61. sealing plates, 62. sealing plates, 63. sealing plates, 64, space one, 65. spaces two, 66. spaces three, 67. spaces four, 601.(upper end) through hole, 602.(lower end) through hole, 603. through holes, 604. through holes;
7. limiting plate, 70. sieve apertures;
8. push pedal on clamping piston, 80. adapter sleeves, 81., 82. times push pedals, 83.(push pedal) through hole, 84.(adapter sleeve) through hole, 85. sealing rings, 86. step axle heads, 87. sealing rings;
9. fiber filtering, 14. supports.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
Two-way internal channel, from pressor fibers filter, comprises a tank body 1 as shown in Figure 1, and tank body 1 top is provided with purified liquor outlet 2 and backwash interface 3, and bottom offers inlet 4, sewage draining exit 5.In tank body 1, be provided with a binary channels axle 6, described binary channels axle 6 comprises a hollow tube 60 as axis body, in hollow tube 60, be provided with successively sealing plate 1, sealing plate 2 62, sealing plate 3 63, hollow tube inside is divided into space 1, space 2 65, space 3 66, space 4 67 by three sealing plates, wherein space 2 65 is as passage one, and space 4 67 is as passage two.One group of through hole is offered respectively at the two ends up and down of the sidewall of passage one, and the sets of vias of upper end is made up of several through holes 601, and the sets of vias of lower end is made up of several through holes 602, and through hole 601, through hole 602 are all evenly offered along hollow tube wall circumference for one week.On the sidewall of passage two, offer several through holes 603, through hole 603 is evenly offered along hollow tube wall for one week.In fact through hole 601, through hole 602, through hole 603 also can only have respectively one, just in the time of filter liquide, can reduce flow rate of liquid, and then reduce the flow of liquid in the unit interval.Adopt multiple through holes can improve the flow of filter liquide, not only can realize the object to filter liquide high throughput, its filtration and follow-up backwash effect are also relatively good.Except hollow tube 60 can be used as axis body, axis body also can adopt other forms of structure, as pole shape, offers two confined spaces form passage one, passage two in pole inside, and just for easy to process, the axis body in the present invention has adopted hollow tube.Axis body can be integrated formed structure, can be also by multiple parts respectively amalgamation form.
Binary channels axle 6 is outer limiting plate 7 and the clamping piston 8 with sieve aperture 70 that be arranged with from top to bottom, and wherein limiting plate 7 maintains static, and clamping piston 8 can move up and down along hollow tube.Described clamping piston 8 comprises an adapter sleeve 80, adapter sleeve 80 is outer to be sheathed on binary channels axle 6 and can to move up and down along it, on adapter sleeve 80, be fixedly connected with push pedal 81, lower push pedal 82, wherein go up and on push pedal plate face, offer several through holes 83, this through hole 83 make filter liquide first through upper push pedal 81 entering in fiber filtering, a part of impurity in filtrate first can be removed like this, be reduced the pollution to fiber filtering.Be positioned on the connection jacket wall between push pedal 81 and lower push pedal 82 and offer through hole 84, the object of this through hole 84 is to be connected with the inside of passage one, passage two respectively, realizing filtrate while filtration enters in cavity 3 12 by passage two from cavity 4 13, or counter-flushing liquid enters in passage two by through hole 84 when backwash, discharges from the sewage draining exit 5 being connected with passage two.Tank body 1 is separated into cavity 1, cavity 2 11, cavity 3 12, cavity 4 13 by limiting plate 7, upper push pedal 81, lower push pedal 82, wherein purified liquor outlet 2, backwash interface 3 are connected with cavity 1 respectively, fiber filtering 9 is placed in cavity 2 11, and inlet 4 is connected with cavity 4 13.In the time that clamping piston 8 moves up along binary channels axle 6, space 4 67, passage one that the cavity 4 13 of tank body can be hollow tube with passage two are successively that space 2 65 is connected, wherein in the time that cavity 4 13, cavity 3 12, the passage one of tank body are connected simultaneously, the through hole 602 that is passage one lower end is connected with cavity 4 13, when the through hole 601 of upper end is connected with the through hole 84 on adapter sleeve, clamping piston 8 stops moving up, and is now located at passage one through hole 601 topmost and is positioned at push pedal 81 belows.In fact, except longitudinally only offering two through holes at passage one in the present embodiment, multiple through holes can also longitudinally offered, as longitudinally offered 3, multiple through holes such as 4, in like manner, on passage two, also can longitudinally offer multiple through holes, the position of these through holes can be offered according to actual conditions, but the position of offering of through hole wants to realize in the time that the partial through holes of passage one and the cavity of tank body 4 13 are connected, partial through holes will be connected with the through hole 84 on adapter sleeve, object so that filter liquide enter in cavity 3 12 by the upper and lower through hole of passage one from cavity 4 13, its passage one through hole topmost can be placed in push pedal below, also can be higher than upper push pedal.In the present embodiment, being opened on passage one through hole is topmost that through hole 601 is positioned at push pedal 81 belows, object so that filtrate enter in cavity 3 12 by the upper and lower through hole of passage one from cavity 4 13.If the through hole of the top of passage one is higher than upper push pedal 81, filtrate can part directly enter in cavity 2 11 by this through hole, be that part filtrate directly enters fiber filtering 9 and filters, as shown in Figure 2, its passage one through hole is topmost through hole 604, although also can realize the object of filtration, can be unfavorable for backwash like this time, fiber filtering be removed slag.Although in the time that the partial through holes of passage one is communicated with cavity 4 13, its other through hole can not be connected with the through hole on adapter sleeve, but be directly communicated with cavity 2 11, if but filtrate directly enters in cavity 2 11 and filters, filter residue in filtrate can easily be blocked fiber filtering, affect filter effect, when serious, easily making filter cisco unity malfunction, the structure in the present embodiment is a preferred construction.The size of aforementioned through-hole 601, through hole 602, through hole 603, through hole 84 can be the same or different, as long as can realize object separately.
Because space in the present embodiment 1 is hollow, for preventing filtering rear clear liquid and counter-flushing liquid enters in space 1, this space 1 is not all connected with purified liquor outlet 2 and backwash interface 3.
Further, be the sealing that strengthens filter process cavity 4 13, thereby prevent that filtered fluid from entering into the pressure while reducing to filter in cavity 3 12 by the edge of lower push pedal 82, be provided with seal groove in lower push pedal 82 neighborings, in seal groove, be provided with sealing ring 85.
Further, for preventing that liquid from entering in fiber filtering along the gap between adapter sleeve 80 and binary channels axle 6 sidewalls, reduce the corrosion of liquid to adapter sleeve 80 and binary channels axle 6 simultaneously, be provided with a step axle head 86 in adapter sleeve 80 bottoms, step axle head inner side has seal groove, is provided with sealing ring 87 in seal groove.
During for increasing backwash, pressure release speed, also offers little sewage draining exit 51 in tank body 1 bottom, and this little sewage draining exit 51 can also be removed discharge by the foreign material of filter tank body 1 inner bottom part.
Filter is installed for convenience, below tank body 1, is provided with support 14.
The course of work of above-mentioned filter is as described below:
When filtration, blowdown outlet 5, little sewage draining exit 51 and backwash interface 3 are closed, and clamping piston 8 is positioned at filter tank body 1 bottom, as shown in Figure 3.Between lower floor's push pedal 82 of clamping piston 8 and filter tank body 1, be that cavity 4 13 forms confined space, filtered fluid enters this confined space by inlet 4, and clamping piston 8 is produced to motive force, and it is moved up, and fiber filtering 9 is compressed, as shown in Figure 4.When the through hole 602 that is positioned at passage one lower end is communicated with cavity 4 13, when being positioned at the through hole 601 of passage one upper end and the through hole 84 of adapter sleeve simultaneously and being connected, when now cavity 4 13, cavity 3 12, space 2 65 are interconnected simultaneously, as shown in Figure 5, promoting clamping piston 8 stops, filtered fluid enters in cavity 3 12 by through hole 602, through hole 601, and enters fiber filtering 9 by the through hole 83 of offering in upper push pedal 81 and realize filtration, and the clear liquid after filtration is also discharged by purified liquor outlet 2.
In the time of backwash, inlet 4, purified liquor outlet 2 are closed, and backwash interface 3, blowdown outlet 5 and the dirty outlet 51 of float are opened, and the liquid after filtration flows to filter tank body 1 by going out backwash interface 3, rinses fiber filtering 9.Simultaneously, under the promotion of flushing liquor, lose with the former pressure of filter tank body 1 lower end inlet 4, clamping piston 8 moves down along binary channels axle 6, when the through hole 603 on passage two is communicated with clamping piston 8 radial direction through hole 84, counter-flushing liquid is discharged by blowdown outlet 5, thereby realize counter-flushing liquid, the fiber filtering 9 scattering is cleaned, after rinsing well, repeat again said process filter process.
The effect of little sewage draining exit 51 is the pressure release speed that strengthens in the time of backwash, the material of filter tank body 1 bottom depositing in filter process is removed to discharge simultaneously.
It should be noted that: in filter process, filtered fluid is through the through hole 602 of passage one, the cavity 3 12 that through hole 601 enters into tank body, and the through hole 83 of push pedal 81 on clamping piston 8 enters the fiber filtering 9 after compression and realizes and filtering.Because clamping piston 8 is risen and realized the compaction process of fiber filtering 9 by filter tank body 1 bottom in this process, react and can produce decompression in the time that above-mentioned filtered fluid enters binary channels axle 6 by filter tank body 1 bottom, the now fluctuation of clamping piston 8 lower floors push pedal 82 lower surface pressure and occur thrust fluctuation change, press down tight piston 8 in a stable condition and there will be dither, this be conducive to into the separation of thing phase in filtered fluid, make to be difficult for accumulated slag in filter process, backwashing period lengthens.
Two-way internal channel of the present invention from pressor fibers filter by the innovation of the aspect such as mechanism and structure, solved that fibrillation class filter needs that external hydraulic pressure (or air pressure) auxiliaryly compress that the manufacturing cost existing is high, not corrosion-resistant, strainability and the problem such as applied environment is limited, maintainability is poor, overcome the drawback that existing fabric filter takes up room greatly, operational efficiency is low, device structure is simple, efficient, can be widely used in the fields such as oil, metallurgy, electric power, locomotive, there are good application value and market prospects.
Two-way internal channel, from the pressor fibers filter bottleneck that traditional fiber medium pressing process is loaded down with trivial details from having broken in idea, accessory system is many, is stopped inner utilization filtration fluid in filter canister and is realized the stable compression of fiber filtering is filtered and loosened cleaning from pressure.In the compression stage, (in course of exerting pressure) was by liquid to be filtered, swaging becomes supercharging mechanism, the reverse disintegration fiber of liquid filtering layer after backwash process utilizes and filters, cancelled external drive unit, energy consumption significantly reduces, and has expanded the scope of application of fiber-like filter.Two-way internal channel in filter of the present invention is a kind of supercharging, pressure relief, effectively utilize filtering feature and the backwash characteristic of fabric filter, be mutually related two-way internal channel supercharging, pressure relief system are set up, effectively realize normal filtration and the backwash of fiber medium, when having taken into account fiber filtering filter high throughput advantage, volume dwindles greatly, has reduced the space of laying of manufacturing cost and equipment.Meanwhile, fiber filtering bed, in the time that supercharging compresses filtration, is adjusted and balance filtration fluid flow and pressure automatically, makes to produce dither on filter bed top layer, promotes the separation of the interior heterogeneous special material of liquid to be filtered, and filter efficiency obviously improves.Adopt filter of the present invention not need to configure hydraulic system, maintenance work is simplified greatly, the stability of filter and reliability improve.
More than narrate and try hard to show and describe principal character of the present invention, essence, general principle, technological merit and detailed description of the invention; one skilled in the art will appreciate that; embodiment described here is in order to help reader understanding's principle of the present invention; without departing from the spirit and scope of the present invention; the inventive method also has other various changes and modifications, should be understood in protection scope of the present invention.
Claims (10)
1. two-way internal channel is from pressor fibers filter, comprise a tank body, tank body is provided with inlet, sewage draining exit, purified liquor outlet and backwash interface, in tank body, be provided with fiber filtering, it is characterized in that: in tank body, be provided with a binary channels axle, the axis body inside of binary channels axle has vertically two confined spaces and forms passage one, passage two, on the sidewall of passage one, longitudinally offer at least two through holes, on the sidewall of passage two, offer at least one through hole, and passage two bottoms are connected with sewage draining exit; Binary channels axle is outer limiting plate and the clamping piston with sieve aperture that be arranged with from top to bottom, and limiting plate maintains static, and clamping piston can move up and down along binary channels axle; Described clamping piston comprises an adapter sleeve, adapter sleeve is sheathed on binary channels axle outward and can moves up and down along it, on adapter sleeve, be fixedly connected with push pedal, lower push pedal, wherein go up on push pedal plate face and offer several through holes, be positioned on the adapter sleeve sidewall between push pedal and lower push pedal and offer at least one through hole; Limiting plate, upper push pedal, lower push pedal will be separated into cavity one, cavity two, cavity three, cavity four in tank body, wherein purified liquor outlet, backwash interface are connected with cavity one respectively, and fiber filtering is placed in cavity two, and inlet is connected with cavity four; In the time that clamping piston moves up along binary channels axle, the cavity four of tank body can be connected with the through hole on passage two, passage one successively, and wherein, in the time that cavity four, the cavity three of tank body are connected with passage one simultaneously, clamping piston stops moving up.
As described in claim 1 two-way internal channel from pressor fibers filter, it is characterized in that: in the time that clamping piston moves up along binary channels axle, when the cavity four of tank body is connected with the partial through holes of passage one, when through hole on adapter sleeve is connected with the partial through holes on passage one simultaneously, clamping piston stops moving up.
3. two-way internal channel, from pressor fibers filter, is characterized in that as described in claim 2: be opened in passage one through hole topmost and be positioned at push pedal below.
4. if the two-way internal channel as described in arbitrary in claims 1 to 3 is from pressor fibers filter, it is characterized in that: described axis body is a hollow tube, in hollow tube, be provided with successively from top to bottom sealing plate one, sealing plate two, sealing plate three, hollow tube inside is divided into space one, space two, space three, space four by three sealing plates, wherein space two is for being passage one, and space four is passage two.
As described in claim 1 two-way internal channel from pressor fibers filter, it is characterized in that: the upper and lower two ends of sidewall of passage one are respectively equipped with one group of through hole, each group through hole all at least comprises several through holes, and several through holes of each group are all evenly offered along hollow tube wall circumference for one week, in the time that the through hole of lower end is communicated with cavity four, the through hole of upper end is connected with adapter sleeve through hole.
6. two-way internal channel, from pressor fibers filter, is characterized in that as described in claim 1: on adapter sleeve, comprise several through holes, several through holes are evenly offered along connecting jacket wall for one week.
7. two-way internal channel, from pressor fibers filter, is characterized in that as described in claim 4: space one is not all connected with purified liquor outlet and backwash interface.
8. two-way internal channel, from pressor fibers filter, is characterized in that as described in claim 1: be provided with seal groove in lower push pedal neighboring, be provided with sealing ring in seal groove.
9. two-way internal channel, from pressor fibers filter, is characterized in that as described in claim 1: adapter sleeve bottom is provided with a step axle head, and step axle head inner side has seal groove, is provided with sealing ring in seal groove.
10. two-way internal channel, from pressor fibers filter, is characterized in that as described in claim 1: on tank body, also offer little sewage draining exit, this little sewage draining exit is connected with cavity four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420038130.XU CN203678036U (en) | 2014-01-21 | 2014-01-21 | Bidirectional internal channel self-pressurizing fiber filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420038130.XU CN203678036U (en) | 2014-01-21 | 2014-01-21 | Bidirectional internal channel self-pressurizing fiber filter |
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| Publication Number | Publication Date |
|---|---|
| CN203678036U true CN203678036U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420038130.XU Withdrawn - After Issue CN203678036U (en) | 2014-01-21 | 2014-01-21 | Bidirectional internal channel self-pressurizing fiber filter |
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| CN (1) | CN203678036U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096400A (en) * | 2014-07-31 | 2014-10-15 | 吴小龙 | Piston-type filtering device |
| CN104784989A (en) * | 2014-01-21 | 2015-07-22 | 四川高精净化设备有限公司 | Bidirectional interior-passage-way self-pressurized fiber filter |
| CN110917677A (en) * | 2019-09-18 | 2020-03-27 | 常州市君杰水务科技有限公司 | Self-cleaning high-speed filtering system |
-
2014
- 2014-01-21 CN CN201420038130.XU patent/CN203678036U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104784989A (en) * | 2014-01-21 | 2015-07-22 | 四川高精净化设备有限公司 | Bidirectional interior-passage-way self-pressurized fiber filter |
| CN104784989B (en) * | 2014-01-21 | 2016-07-06 | 四川高精净化设备有限公司 | Two-way internal channel is from pressor fibers filter |
| CN104096400A (en) * | 2014-07-31 | 2014-10-15 | 吴小龙 | Piston-type filtering device |
| CN104096400B (en) * | 2014-07-31 | 2016-04-20 | 吴小龙 | A kind of piston filter device |
| CN110917677A (en) * | 2019-09-18 | 2020-03-27 | 常州市君杰水务科技有限公司 | Self-cleaning high-speed filtering system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20160706 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |