CN204973229U - Pressure balance self -cleaning filter - Google Patents
Pressure balance self -cleaning filter Download PDFInfo
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- CN204973229U CN204973229U CN201520666845.4U CN201520666845U CN204973229U CN 204973229 U CN204973229 U CN 204973229U CN 201520666845 U CN201520666845 U CN 201520666845U CN 204973229 U CN204973229 U CN 204973229U
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Abstract
The utility model provides a pressure balance self -cleaning filter, includes the end cover, and piston, core bar, casing, filter core, piston spring and core bar spring, end cover are located the top and are connected rather than the lower part casing, and from the top down is equipped with piston, piston spring, core bar, filter core and core bar spring in proper order between end cover and the casing, the end cover top is equipped with the feed liquor hole, and the piston is equipped with the feed liquor hole and leaks the hole, core bar upper portion feed liquor hole, the middle part is equipped with sealedly, and the lower part is equipped with out the liquid hole, is equipped with a plurality of core bar flushing holes between core bar feed liquor hole and core bar are sealed, and core bar feed liquor hole, core bar play liquid hole and core bar flushing hole link up each other, the casing middle part is equipped with the mudhole, and the bottom is equipped with out the liquid hole. Can do not need plus power device's the circumstances under, rely on self structure to produce pressure balance with filtering medium, through outside medium pressure differential in the filter core, realize the self - cleaning of filter core, and its volume is nimble, application scope is wider.
Description
Technical field
The present invention relates to a kind of filter of purifier field, be related specifically to a kind of pressure balance self-cleaning filter.
Background technology
Filter is indispensable a kind of device on pumped (conveying) medium pipeline, the impurity be used in filter medium, ensures the normal use of valve and equipment.
At present, Manual-cleaning and additionaling power device can be divided into clean two kinds to the cleaning of filter element, Manual-cleaning needs to carry out under inspecting state, is undertaken cleaning or do not dismantle filter core manual unlocking valve rinse by dismounting filter core; The cleaning of additionaling power device is generally by the change of pressure difference switch monitoring filter intake-outlet pressure reduction, and when the differential reaches a set point, electric controller is to hydraulic control valve, drive motors signal, cause following action: motor drives brush to rotate, and cleans filter core, and control valve is opened and carried out blowdown simultaneously, whole cleaning process only need continue several tens of seconds, at the end of cleaning, closed control valve, motor stalls, System recover, to its original state, starts to enter next filter progress.Manual-cleaning needs more manual intervention, makes troubles to use; The control appliance that additionaling power device filter rinsed relates to is numerous, and energy consumption is comparatively large, system relative complex, and volume is not easy to more greatly low discharge applications.
Summary of the invention
The object of this invention is to provide a kind of pressure balance self-cleaning filter, can when not needing additionaling power device, self structure and institute's filter medium is relied on to produce pressure balance, by outside medium differential pressure in filter core, realize the automatic cleaning of filter core, and its volume is flexible, the scope of application is wider.
In order to realize above object, the invention provides a kind of pressure balance self-cleaning filter, comprise end cap, piston, core bar, housing, filter core, piston spring and core bar spring, is characterized in that: described end cap is positioned at top and is connected with its underpart housing, is provided with piston, piston spring, core bar, filter core and core bar spring from top to bottom successively between described end cap and housing; Described end cap top is provided with end cap inlet opening, and described piston is provided with some piston inlet openings and some vent piston small openings; Described end cap inlet opening is connected with piston inlet opening, and described piston inlet opening and vent piston small opening connect; Described core bar top is provided with some core bar inlet openings, core bar sealing is provided with in the middle part of core bar, core bar bottom is provided with core bar fluid hole, and between core bar inlet opening and core bar sealing, be provided with some core bar flushing holes, core bar inlet opening, core bar fluid hole and core bar flushing hole are mutually through; Described housing central section is provided with some housing mudholes, and housing bottom is provided with some housing fluid holes; Be provided with piston spring between described piston and core bar, in the middle part of described core bar and between housing, be provided with filter core, between described core bar bottom and lower housing portion halfpace, be provided with core bar spring.
Further, described vent piston small opening is equal with the pore size of core bar inlet opening.
Further, the described vent piston small opening hole heart and the distance of piston lower surface, equal the distance of the core bar boss upper surface of the core bar inlet opening hole heart and core bar inlet opening bottom.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of a kind of pressure balance self-cleaning filter of the present invention embodiment.
In figure: end cap-1; End cap inlet opening-2; Piston-3; Piston inlet opening-4; Vent piston small opening-5; Piston spring-6; Core bar-7; Core bar inlet opening-8; Core bar flushing hole-9; Filter core-10; Core bar sealing-11; Core bar fluid hole-12; Housing-13; Housing mudhole-14; Housing fluid hole-15; Core bar spring-16.
Accompanying drawing 2 is structural representations that a kind of pressure balance self-cleaning filter of the present invention is in normal operating conditions.
Accompanying drawing 3 is structural representations that a kind of pressure balance self-cleaning filter of the present invention is in self-cleaning state.
Above in each figure, arrow points represents media flow direction.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As Fig. 1, a kind of pressure balance self-cleaning filter of the present embodiment, comprise end cap (1), piston (3), core bar (7), housing (13), filter core (10), piston spring (6) and core bar spring (16), end cap (1) is positioned at top and is connected with its underpart housing (13), is provided with piston (3), piston spring (6), core bar (7), filter core (10) and core bar spring (16) between end cap (1) and housing (13) from top to bottom successively; End cap (1) top is provided with end cap inlet opening (2), and piston (3) is provided with some piston inlet openings (4) and some vent piston small openings (5); End cap inlet opening (2) is connected with piston inlet opening (4), and piston inlet opening (4) and vent piston small opening (5) connect; Core bar (7) top is provided with some core bar inlet openings (8), core bar (7) middle part is provided with core bar sealing (11), core bar (7) bottom is provided with core bar fluid hole (12), between core bar inlet opening (8) and core bar sealing (11), be provided with some core bar flushing holes (9), core bar inlet opening (8), core bar fluid hole (12) and core bar flushing hole (9) are mutually through; Housing (13) middle part is provided with some housing mudholes (14), and housing (13) bottom is provided with some housing fluid holes (15); Piston spring (6) is provided with between piston (3) and core bar (7), be provided with filter core (10) between core bar (7) middle part and housing (13), between core bar (7) bottom and housing (13) bottom halfpace, be provided with core bar spring (16).
Above-mentioned vent piston small opening (5) is equal with the pore size of core bar inlet opening (8).
The distance of above-mentioned vent piston small opening (5) Kong Xinyu piston (3) lower surface, equals the distance of the core bar boss upper surface of core bar inlet opening (8) Kong Xinyu core bar inlet opening (8) bottom.
Its operation principle is as follows:
(1) when pressure balance self-cleaning filter a kind of in the present embodiment is in normal operating conditions, working solution is entered by end cap inlet opening 2, flow through piston inlet opening 4 from top to bottom, then enter in the gap between core bar 7 and housing 13, core bar 7 inner flow passage is entered by core bar flushing hole 9 after filter core 10 impurity screening, flow through core bar fluid hole 12 again, finally flowed out by housing fluid hole 15.When filter core 10 is not blocked by impurity or only has local stoppages, working solution can riddle in above-mentioned runner, and the working fluid pressure of piston about 3 both sides is in poised state, and piston 3 does not produce mobile or produces a small amount of displacement and can not enter self-cleaning state.
(2) when filter core 10 is by the blocking of impurity major part or when blocking completely, in core bar 7 inner flow passage, working fluid pressure is less than end cap inlet opening 2 place working fluid pressure, under the effect of pressure reduction, piston 3 will move down, promote core bar 7 to move down simultaneously, sealing is close to after core bar fluid hole 12 lower surface contacts with the upper surface of housing fluid hole 15, core bar 7 stops mobile, now core bar sealing 11 is positioned at below housing mudhole 14, thus make housing mudhole 14 and the gap conducting between core bar 7 and housing 13, simultaneously in the middle part of the core bar boss lower surface of core bar inlet opening 8 bottom and housing 13, sealing is close to by boss, after piston 3 continues to be moved down into the core bar boss upper surface of piston 3 lower surface and core bar inlet opening 8 bottom, piston 3 cannot move down, now vent piston small opening 5 and core bar inlet opening 8 conducting, working solution is entered by end cap inlet opening 2, core bar inlet opening 8 is entered by vent piston small opening 5 after flowing through piston inlet opening 4, then enter core bar 7 inner flow passage, due to core bar fluid hole 12 contact with the upper surface of housing fluid hole 15 after be close to sealing, working solution cannot be flowed out by housing fluid hole 15, core bar 7 internal work hydraulic coupling rises rapidly, through core bar flushing hole 9, the impurity on filter core 10 is washed out, discharge along the slit flow channel between core bar 7 and housing 13 through housing mudhole 14, after the impurity on filter core 10 is washed out by part or major part, in core bar 7, outside pressure and end cap inlet opening 2 pressure reach poised state, drive piston 3 moves up by core bar 7 together, in the present embodiment, a kind of pressure balance self-cleaning filter will return to normal operating conditions.
Claims (3)
1. a pressure balance self-cleaning filter, comprise end cap (1), piston (3), core bar (7), housing (13), filter core (10), piston spring (6) and core bar spring (16), it is characterized in that: described end cap (1) is positioned at top and is connected with its underpart housing (13), between described end cap (1) and housing (13), be provided with piston (3), piston spring (6), core bar (7), filter core (10) and core bar spring (16) from top to bottom successively; Described end cap (1) top is provided with end cap inlet opening (2), and described piston (3) is provided with some piston inlet openings (4) and some vent piston small openings (5); Described end cap inlet opening (2) is connected with piston inlet opening (4), and described piston inlet opening (4) and vent piston small opening (5) connect; Described core bar (7) top is provided with some core bar inlet openings (8), core bar (7) middle part is provided with core bar sealing (11), core bar (7) bottom is provided with core bar fluid hole (12), between core bar inlet opening (8) and core bar sealing (11), be provided with some core bar flushing holes (9), core bar inlet opening (8), core bar fluid hole (12) and core bar flushing hole (9) are mutually through; Described housing (13) middle part is provided with some housing mudholes (14), and housing (13) bottom is provided with some housing fluid holes (15); Piston spring (6) is provided with between described piston (3) and core bar (7), be provided with filter core (10) between described core bar (7) middle part and housing (13), between described core bar (7) bottom and housing (13) bottom halfpace, be provided with core bar spring (16).
2. a kind of pressure balance self-cleaning filter according to claim 1, is characterized in that: described vent piston small opening (5) is equal with the pore size of core bar inlet opening (8).
3. a kind of pressure balance self-cleaning filter according to claim 1, it is characterized in that: the distance of described vent piston small opening (5) Kong Xinyu piston (3) lower surface, equal the distance of the core bar boss upper surface of core bar inlet opening (8) Kong Xinyu core bar inlet opening (8) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520666845.4U CN204973229U (en) | 2015-08-25 | 2015-08-25 | Pressure balance self -cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520666845.4U CN204973229U (en) | 2015-08-25 | 2015-08-25 | Pressure balance self -cleaning filter |
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| Publication Number | Publication Date |
|---|---|
| CN204973229U true CN204973229U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520666845.4U Active CN204973229U (en) | 2015-08-25 | 2015-08-25 | Pressure balance self -cleaning filter |
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| Country | Link |
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| CN (1) | CN204973229U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474800A (en) * | 2015-08-25 | 2017-03-08 | 华岁喜 | A kind of pressure balance self-cleaning filter |
| CN108697954A (en) * | 2016-03-04 | 2018-10-23 | 沃尔沃卡车集团 | Filter cell for vehicle |
-
2015
- 2015-08-25 CN CN201520666845.4U patent/CN204973229U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474800A (en) * | 2015-08-25 | 2017-03-08 | 华岁喜 | A kind of pressure balance self-cleaning filter |
| CN106474800B (en) * | 2015-08-25 | 2019-03-15 | 华岁喜 | A kind of pressure balance self-cleaning filter |
| CN108697954A (en) * | 2016-03-04 | 2018-10-23 | 沃尔沃卡车集团 | Filter cell for vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160720 Address after: 221008 Jiefang South Road, Xuzhou, China University of Mining and Technology, 539, science and technology building, National University Science Park, Jiangsu Patentee after: Xuzhou Boyuan Technology Co., Ltd. Address before: 273513 Zoucheng coal mine in Shandong Patentee before: Hua Suixi Patentee before: Li Chunliang Patentee before: Lu Yanfeng |