CN201578927U - Bounce-back prefilter - Google Patents
Bounce-back prefilter Download PDFInfo
- Publication number
- CN201578927U CN201578927U CN2009202117724U CN200920211772U CN201578927U CN 201578927 U CN201578927 U CN 201578927U CN 2009202117724 U CN2009202117724 U CN 2009202117724U CN 200920211772 U CN200920211772 U CN 200920211772U CN 201578927 U CN201578927 U CN 201578927U
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- CN
- China
- Prior art keywords
- filter
- switching valve
- main port
- utility
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a bounce-back prefilter. The prefilter comprises a filter bottle, a filter bottle cover, an upper filter screen plate, a lower filter screen plate, a flow guide pipe and filter material, wherein steering valves are mounted at the water inlet and the water outlet of the filter bottle cover; the main port of each steering valve is connected to the filter bottle cover; two shunt ports are connected with connection water pipes respectively; a valve core rotating for 90 DEG is arranged in each steering valve; an L-shaped channel is formed in the valve core; one end of each channel is communicated with the main port; and the other ends of the channels are communicated with the shunt ports respectively according to the rotating directions of the valve cores. The utility model has an advantage that sundries in the filter material can be discharged by cleaning out a filter element in a bounce-back manner under the action of the steering valves, so as to achieve the purpose of using the filter element repeatedly, reducing the cost, and saving the maintenance time.
Description
Technical field
The utility model relates to a kind of filter, particularly a kind of backpulsing fore filter.
Background technology
Filter generally is divided into shell and filter core, and filter core is that consumable material needs periodic replacement.The source water of service water processor design all be the municipal tap water, and the dirt of receiving of its filter core is measured very for a short time, in case run into the source water turbidity when very high then need continually more renew cartridge, promptly sinks money and wastes time.
Summary of the invention
The purpose of this utility model is to solve in the prior art to need the frequent more problem of renew cartridge as the preposition filter core of service water processor when meeting with high turbidity source water, rely on the effect of switching valve, utilize the mode of recoil to clean filter core, reach and to use filter core repeatedly, the purpose that reduces cost and save maintenance time.
The utility model provides a kind of backpulsing fore filter, comprise: filter flask, filter flask cover, go up screen pack, following screen pack, mozzle, filtrate, it is characterized in that: water inlet, the delivery port of filter flask lid are equipped with switching valve, the main port of switching valve is connected filter flask and covers, and two diffluence pass connect water pipe respectively; Have in the switching valve one can 90 the spool of degree rotation, the passage of L type is arranged in the spool, an end of passage communicates with main port, the other end communicates with diffluence pass respectively according to the direction that spool rotates.Advantage of the present utility model is, relies on the effect of switching valve, utilizes the mode of recoil to clean filter core with the discharge of the foreign material in the filtrate, reaches and can use filter core repeatedly, the purpose that reduces cost and save maintenance time.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing 1, accompanying drawing 2 are the structural representation of the utility model embodiment backpulsing fore filter;
Accompanying drawing 3, accompanying drawing 4 are the structural representation of switching valve in the utility model embodiment backpulsing fore filter;
The specific embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection domain of the present utility model in.
Fig. 1 and Fig. 2 comprise: filter flask 11, filter flask lid 3, last screen pack 15, following screen pack 12, mozzle 14, filtrate 10, filter flask lid water inlet 20 is equipped with switching valve 16, filter flask lid delivery port 4 is equipped with switching valve 8, the main port 19 of switching valve 16 is connected on the filter flask lid water inlet 20, the main port 5 of switching valve 8 is connected on the filter flask lid delivery port 4, and the diffluence pass 6,7,17,18 of switching valve 8,16 connects water pipe respectively;
Fig. 3 and Fig. 4 comprise: have in the switching valve one can 90 the spool 25 of degree rotation, the passage 24 of L type is arranged in the spool, an end of passage 24 communicates with main port 23, the other end communicates with diffluence pass 21,27 respectively according to the direction that spool 25 rotates.
When rotary handle 26 made the spool 25 of switching valve be in Fig. 3 position, the passage 24 of spool 25 was communicated with diffluence pass 21 and main port 23, and diffluence pass 27 is subjected to the sealing of O type circle 22.
When rotary handle 26 made the spool 25 of switching valve be in Fig. 4 position, the passage 24 of spool 25 was communicated with diffluence pass 27 and main port 23, and diffluence pass 21 is subjected to the sealing of O type circle 22.
Regulate the position that switching valve 8 and switching valve 16 make it to be in Fig. 1, can only flow through through threeway 2 time diffluence pass 18, main port 19, the filter flask lid water inlet 20 of switching valve 16 of the water that enters from water inlet 1 enters filter flask 11, see through last screen pack 15, filtering the back through filtrate 10 oozes out from following screen pack 12, cover the main port 5 that delivery port 4 enters switching valve 8 through mozzle 14 from filter flask, enter water pipe from diffluence pass 7 and flow out from delivery port 9.
Regulate the position that switching valve 8 and switching valve 16 make it to be in Fig. 2, can only flow through through threeway 2 time diffluence pass 6, main port 5, the filter flask lid delivery port 4 of switching valve 8 of the water that enters from water inlet 1 enters filter flask 11, flow through mozzle 14 backs and oppositely up flow through filtrate 10 from following screen pack 12, after foreign material in the filtrate 10 are broken through screen pack 15, cover the main port 19 that water inlet 20 enters switching valve 16 from filter flask, enter water pipe from diffluence pass 17 and flow out from sewage draining exit 13.Reach the purpose of back flush.
Claims (2)
1. backpulsing fore filter, comprise: filter flask, filter flask cover, go up screen pack, following screen pack, mozzle, filtrate, it is characterized in that: water inlet, the delivery port of filter flask lid are equipped with switching valve, and the main port of switching valve is connected filter flask and covers, and two diffluence pass connect water pipe respectively.
2. by the described a kind of backpulsing fore filter of claim 1, it is characterized in that: have in the switching valve one can 90 the spool of degree rotation, the passage of L type is arranged in the spool, an end of passage communicates with main port, the other end communicates with diffluence pass respectively according to the direction of spool rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202117724U CN201578927U (en) | 2009-11-03 | 2009-11-03 | Bounce-back prefilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202117724U CN201578927U (en) | 2009-11-03 | 2009-11-03 | Bounce-back prefilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201578927U true CN201578927U (en) | 2010-09-15 |
Family
ID=42720918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202117724U Expired - Fee Related CN201578927U (en) | 2009-11-03 | 2009-11-03 | Bounce-back prefilter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201578927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363261A (en) * | 2015-07-23 | 2016-03-02 | 碧克仑(北京)净水科技有限公司 | Water purifying and filtering device capable of achieving automatic water locking through rotary valve and quick-changing of filter element |
-
2009
- 2009-11-03 CN CN2009202117724U patent/CN201578927U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363261A (en) * | 2015-07-23 | 2016-03-02 | 碧克仑(北京)净水科技有限公司 | Water purifying and filtering device capable of achieving automatic water locking through rotary valve and quick-changing of filter element |
| CN105363261B (en) * | 2015-07-23 | 2018-12-07 | 碧克仑(北京)净水科技有限公司 | A kind of water purification filter of rotary valve automatic water locking quick change filter core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20101103 |