CN202893059U - Back washing structure of prefilter - Google Patents
Back washing structure of prefilter Download PDFInfo
- Publication number
- CN202893059U CN202893059U CN 201220337038 CN201220337038U CN202893059U CN 202893059 U CN202893059 U CN 202893059U CN 201220337038 CN201220337038 CN 201220337038 CN 201220337038 U CN201220337038 U CN 201220337038U CN 202893059 U CN202893059 U CN 202893059U
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- Prior art keywords
- impeller
- filter
- fuse
- core
- filter core
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Abstract
The utility model discloses a back washing structure of a prefilter. The prefilter comprises a shell as well as a filter core and a switching device arranged in the shell, wherein the filter core is internally provided with an impeller and a core which is arranged below the impeller and is fixedly connected with the impeller, the core is of a hollow structure, and the side wall of the core is provided with a plurality of through holes. When the back washing is performed, on the one hand, the through holes on the cores can reduce the water outlet area, and the washing force is increased; and on the one hand, the rapid rotation of the cores can cause waterflow to form mixed flow, so that a filter screen is washed from multiple sides, thus a washing effect of the filter screen is increased, and the filter screen is cleaner.
Description
Technical field
The utility model relates to a kind of filter, espespecially a kind of back-flushing structure of fore filter.
Background technology
The daily drinking water of people mostly comes from the municipal tap water, although running water has passed through filtration and sterilization processing, inevitably can have incrustation scale in it, also inevitably can retain the chlorine that some sterilizations are used in the running water.And running water will pass through a lot of pipelines before being transported to each user, and there are again the impurity such as a lot of silts, iron rust or floating material usually in the pipeline the inside, for skyscraper, also need secondary water-supply, these all can cause secondary pollution to running water, have influence on people's health status.Therefore people begin the hygienic issues of running water is paid attention to.Filter can effectively filter residual chlorine in incrustation scale in the running water and the water, present many families all in water pipe the access filter to reach the purpose that running water is filtered, to eliminate secondary pollution.
Fore filter is exactly the wherein a kind of of above-mentioned filter, fore filter generally is arranged on the upstream of all filters, be used for coarse filtration, therefore the particulate contamination in the filtered water only needs to use common screen pack to adopt the physical filtering mode just can reach the requirement of filtration.Because what filter is particulate contamination, fore filter does not need more renew cartridge after using a period of time, but the mode of employing backwash just can be clean with filter gauze cleaning.Backwash is exactly oppositely bath, and filter screen is carried out backward erosion, in order to wash out impurity or dirt on the filter screen, reaches the purpose of cleaning filter screen.Simple backward erosion is adopted in the at present backwash of fore filter exactly, and any extra structure is not set, so the poor effect of washing away, or the residual a lot of impurity of meeting, affects result of use and the life-span of filter screen.
The utility model content
Technical problem to be solved in the utility model is to provide the more preferably back-flushing structure of fore filter of a kind of scouring effect.
For solving the problems of the technologies described above, technical solution of the present utility model is:
A kind of back-flushing structure of fore filter, this fore filter comprise housing and are arranged on housing interior filter core and switching device shifter; Impeller is installed in the described filter core and is positioned at the fixedly fuse of interlock of impeller below and impeller, this fuse is hollow structure, and its sidewall is provided with some through holes.
The sidewall bottom of described fuse is waveform, and described filter core inside bottom is provided with at least one convex that cooperates with the waveform sidewall bottom of this fuse.
Offer some water inlets on the described filter screen sidewall relative with impeller, the water inlet inboard is provided with guiding gutter, offers some oblique spouts relative with impeller at the guiding gutter inwall.
After adopting such scheme, because the utility model is provided with one in the filter core of fore filter can be by the fuse of impeller driven rotary, at fuse some through holes are set, when carrying out backwash, current are outwards washed away the filter screen of filter core by fuse inside, on the one hand, through hole on the fuse will reduce water-outlet area, increase and wash away dynamics, on the one hand, the fast rotational of fuse will make current form sinuous flow, can wash away filter screen from many aspects, thereby can increase the scouring effect to filter screen, make filter screen more clean, and then increase filter effect and the life-span of filter core.
Description of drawings
Fig. 1 is the three-dimensional exploded view of fore filter described in the utility model;
Fig. 2 is the assembled sectional view of fore filter described in the utility model;
Fig. 3 is the cutaway view of back-flushing structure described in the utility model;
Fig. 4 is the three-dimensional combination figure of back-flushing structure described in the utility model;
Fig. 5 is the three-dimensional exploded view of filter core described in the utility model and fuse;
Fig. 6 is the schematic perspective view of filter core described in the utility model;
Fig. 7 is the top view of filter core described in the utility model;
Fig. 8 is the schematic perspective view of fuse described in the utility model;
Fig. 9 is the action schematic diagram one of back-flushing structure described in the utility model;
Figure 10 is the action schematic diagram two of back-flushing structure described in the utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
What the utility model disclosed is a kind of back-flushing structure of fore filter, as shown in Figures 1 and 2, described fore filter mainly comprises housing 1 and is arranged on filter core 2 and switching device shifter 3 in the housing 1, and this housing 1 top is provided with water inlet 11 and delivery port 12, and the below is provided with sewage draining exit 13.Described switching device shifter 3 is in order to the switching of normal filtration duty and backwash duty, and it is not this case emphasis, does not describe in detail at this.As shown in Figure 2, when carrying out backwash, water enters from water inlet 11, enters into filter core 2 inside by filter core 2 tops or upper outer, washes away the filter screen on the filter core from filter core 2 inside to the filter core outside again, and sewage is discharged from the sewage draining exit 13 of below afterwards.
Key of the present utility model is: cooperate as Fig. 3 extremely shown in Figure 10, impeller 4 is installed in the described filter core 2 and is positioned at impeller 4 belows and the fixing fuse 5 of interlock of impeller 4; This fuse 5 is hollow structure, and its sidewall is provided with some through holes 51.
When carrying out backwash, the current that enter into filter core 2 inside will impact impeller 4, make impeller 4 rotations, 4 in impeller drives fuse 5 rotations, and enters into filter core 2 interior water outwards wash away filter core 2 sidewalls from the inside of fuse 5 filter screen, through hole 51 on the fuse 5 reduces water-outlet area, therefore will increase the water outlet dynamics, and fuse 5 makes outside current form sinuous flow in rotation, these all will increase scouring effect, make filter screen be washed away more totally.
Further, the sidewall bottom 52 of described fuse 5 can be waveform, and described filter core 2 inside bottom are provided with at least one convex 21 that cooperates with the waveform sidewall bottom 52 of this fuse 5.Like this, when impeller 4 drives fuse 5 rotation, corrugated fuse sidewall bottom 52 will pump along convex 21, thereby fuse 5 is moved up and down while rotating, the current that outwards wash away from fuse 5 like this will form further sinuous flow phenomenon, can wash away from all angles the filter screen of filter core 2, thereby further increase scouring effect.
In addition, in order to increase the impulsive force to impeller 4, can offer some water inlets 22 at described filter screen 2 and impeller 4 relative sidewalls, water inlet 22 inboards are provided with guiding gutter 23, and offer some relative tiltedly spouts 24 with impeller at guiding gutter 23 inwalls.Like this, water enters into guiding gutter 23 from water inlet 22, impacts impeller 4 by oblique spout 24, makes current and impeller be 90 degree right angles, thereby makes the impeller fast rotational.
The above is preferred embodiment of the present utility model only, is not to limit the scope that the utility model is implemented.So variation or the modification in every case done according to claim of the present utility model and specification all should belong within the scope that the utility model patent contains.
Claims (3)
1. the back-flushing structure of a fore filter, this fore filter comprise housing and are arranged on filter core and switching device shifter in the housing; It is characterized in that: impeller is installed in the described filter core and is positioned at the fixedly fuse of interlock of impeller below and impeller, this fuse is hollow structure, and its sidewall is provided with some through holes.
2. the back-flushing structure of fore filter according to claim 1, it is characterized in that: the sidewall bottom of described fuse is waveform, described filter core inside bottom is provided with at least one convex that cooperates with the waveform sidewall bottom of this fuse.
3. the back-flushing structure of fore filter according to claim 1 is characterized in that: offer some water inlets on the described filter screen sidewall relative with impeller, the water inlet inboard is provided with guiding gutter, offers some oblique spouts relative with impeller at the guiding gutter inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337038 CN202893059U (en) | 2012-07-12 | 2012-07-12 | Back washing structure of prefilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337038 CN202893059U (en) | 2012-07-12 | 2012-07-12 | Back washing structure of prefilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202893059U true CN202893059U (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220337038 Expired - Fee Related CN202893059U (en) | 2012-07-12 | 2012-07-12 | Back washing structure of prefilter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202893059U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825560A (en) * | 2018-07-27 | 2018-11-16 | 上海长征泵阀（集团）有限公司 | A kind of energy-saving pump with backwash filter function |
| CN109364567A (en) * | 2018-09-26 | 2019-02-22 | 北京科普森自动化工程技术有限公司 | A kind of cleaning filter alarm method and system |
| CN110743221A (en) * | 2018-07-24 | 2020-02-04 | 康丽根水处理科技(上海)有限公司 | Front filter with high-pressure rotary backwashing and positive flushing functions |
| CN110975379A (en) * | 2019-12-10 | 2020-04-10 | 王灿 | Full-automatic back-washing precision filter |
| CN111495039A (en) * | 2020-03-31 | 2020-08-07 | 浙江伟星净水科技有限公司 | Hydraulic drive automatic reversing spray washing mechanism |
| CN113975873A (en) * | 2021-11-30 | 2022-01-28 | 江苏纯悦环境科技有限公司 | Back flush filter |
-
2012
- 2012-07-12 CN CN 201220337038 patent/CN202893059U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110743221A (en) * | 2018-07-24 | 2020-02-04 | 康丽根水处理科技(上海)有限公司 | Front filter with high-pressure rotary backwashing and positive flushing functions |
| CN108825560A (en) * | 2018-07-27 | 2018-11-16 | 上海长征泵阀（集团）有限公司 | A kind of energy-saving pump with backwash filter function |
| CN108825560B (en) * | 2018-07-27 | 2023-11-17 | 上海长征泵阀（集团）有限公司 | Energy-saving pump with back flush filtering function |
| CN109364567A (en) * | 2018-09-26 | 2019-02-22 | 北京科普森自动化工程技术有限公司 | A kind of cleaning filter alarm method and system |
| CN110975379A (en) * | 2019-12-10 | 2020-04-10 | 王灿 | Full-automatic back-washing precision filter |
| CN110975379B (en) * | 2019-12-10 | 2021-08-24 | 君品集团有限公司 | Full-automatic back-washing precision filter |
| CN111495039A (en) * | 2020-03-31 | 2020-08-07 | 浙江伟星净水科技有限公司 | Hydraulic drive automatic reversing spray washing mechanism |
| CN111495039B (en) * | 2020-03-31 | 2021-08-10 | 浙江伟星净水科技有限公司 | Hydraulic drive automatic reversing spray washing mechanism |
| CN113975873A (en) * | 2021-11-30 | 2022-01-28 | 江苏纯悦环境科技有限公司 | Back flush filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20160712 |