CN112642197A - Back-flushing rotary spray washing device for pre-filter - Google Patents
Back-flushing rotary spray washing device for pre-filter Download PDFInfo
- Publication number
- CN112642197A CN112642197A CN202011613404.XA CN202011613404A CN112642197A CN 112642197 A CN112642197 A CN 112642197A CN 202011613404 A CN202011613404 A CN 202011613404A CN 112642197 A CN112642197 A CN 112642197A
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- Prior art keywords
- filter
- rotary
- rotating sleeve
- sleeve
- holes
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- 238000011045 prefiltration Methods 0.000 title claims abstract description 49
- 238000005406 washing Methods 0.000 title claims abstract description 19
- 239000007921 spray Substances 0.000 title claims description 24
- 238000011010 flushing procedure Methods 0.000 title description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000011001 backwashing Methods 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 11
- 239000010865 sewage Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 239000008213 purified water Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
- B01D29/682—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with a rotary movement with respect to the filtering element
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention belongs to the technical field of water treatment, and relates to a backwashing rotary spray-washing device for a pre-filter. The back-washing rotary spray-washing device for the pre-filter comprises an inner support, a rotary sleeve and a filter element. The rotating sleeve is rotatably arranged on the inner support, and an inner cavity of the rotating sleeve forms a water inlet cavity. Three through-holes have been seted up to rotatory telescopic perisporium, and three through-holes evenly distributed is in the circumferencial direction, and sets up respectively in rotatory telescopic upper segment, middle section and hypomere. The three through holes are all inclined along the clockwise direction or the anticlockwise direction. The filter element is arranged on the inner support and sleeved outside the rotary sleeve. The backwashing rotary spray-washing device of the pre-filter has the advantages that: get into rotatory telescopic rivers, when flowing from three through-hole, under the effort of rivers, rotatory sleeve can rotate, from the water that three through-hole flowed to the filter core is spouted to rotatory state, in order to improve the cleaning performance to the filter core.
Description
Technical Field
The invention belongs to the technical field of water treatment, and relates to a backwashing rotary spray-washing device for a pre-filter.
Background
In urban water supply, the quality of water for household use is deteriorated and the control of water using equipment is disabled due to secondary pollution such as rust, silt and the like in a pipeline, and the service life of other household appliances related to water use is reduced, even great potential safety hazards are generated, so that a pre-filter is required to be installed to improve the quality of water and protect the household water using equipment.
The pre-filter in the current market mainly comprises a forward flushing type, a siphon flushing type, a back flushing type and the like. However, different types of pre-filters suffer from different problems:
the flushing intensity of the forward flushing prefilter is very weak, the filter element is easy to block, and not only small impurities can not be flushed out, but also the filter element is embedded deeper and tighter, so that secondary pollution is easy to occur. Consumers need to open the shell to take the filter element out for brushing by the toothbrush, and the filter element can be cleaned up, which is time-consuming and labor-consuming.
The siphon type prefilter has a complicated structure and is not thoroughly washed. Impurities are easily embedded deeper and tighter in the filter element, which causes secondary pollution and even finally leads to the blockage of the filter element. Once the cartridge becomes clogged, maintenance is very difficult. On the other hand, most siphon-type prefilter products also require a filter precision to be configured in order to achieve a flushing effect.
The backwashing type prefilter is technically improved compared with other prefilters, but trapped objects blocked in filter screen holes are not easy to wash out, and troubles are brought to users because filter bottles need to be opened to take out the filter screens and auxiliary tools such as brushes and air guns are used for cleaning.
Disclosure of Invention
The invention aims to provide a backwashing rotary spray-washing device of a front filter, which is used for improving the effect of cleaning a filter element.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pre-filter backwash spin spray device comprising:
an inner support;
the rotating sleeve is rotatably arranged on the inner support, and an inner cavity of the rotating sleeve forms a water inlet cavity; the peripheral wall of the rotating sleeve is provided with three through holes, and the three through holes are uniformly distributed in the circumferential direction and are respectively arranged at the upper section, the middle section and the lower section of the rotating sleeve; the three through holes are inclined along the clockwise direction or the anticlockwise direction;
and the filter element is arranged on the inner support and sleeved outside the rotary sleeve.
Preferably, in the above-described pre-filter backwash rotary spray washing device, the rotary sleeve has a thickened portion, and the through hole is provided in the thickened portion.
Preferably, in the above-mentioned pre-filter backwashing rotary spray-washing device, the side wall of the through hole is a curved surface or an inclined surface.
Preferably, in the above pre-filter backwash rotary spray washing device, an intersection point of a center line of the through hole and a circle where the rotary sleeve is located is defined as a reference point, an included angle between a radius of the circle where the rotary sleeve is located and the center line passing through the reference point is an obtuse angle, and the obtuse angle is 110 ° to 170 °.
Preferably, in the above-described pre-filter backwash spin spray apparatus, the thickness of the thickened portion is 1.2 to 3 times the thickness of the remaining portion of the rotating sleeve.
Preferably, in the above-mentioned pre-filter backwashing rotary spray-washing device, the pre-filter backwashing rotary spray-washing device further includes a filter element frame, the filter element frame is sleeved outside the rotary sleeve and spaced from the rotary sleeve, and the filter element is mounted on the filter element frame.
Preferably, in the above backwashing rotary spray-washing device for a pre-filter, the backwashing rotary spray-washing device for a pre-filter further comprises a bottle body and an outer support, the outer support is installed in an inner cavity of the bottle body, and the inner support, the rotary sleeve and the filter element are all installed in an inner cavity of the outer support; the inner cavity of the filter element forms a first water flow channel, and a second water flow channel is formed between the filter element and the inner wall of the bottle body.
Preferably, in the above-mentioned pre-filter backwashing rotary spraying device, the pre-filter backwashing rotary spraying device further includes a reset element installed in the inner cavity of the outer bracket, and the reset element can push the inner bracket to move by being pressed, so as to switch the water flow direction.
Preferably, in the above pre-filter backwashing rotary spraying device, the outer support comprises a first outer support and a second outer support, and the first outer support and the second outer support are detachably spliced.
Preferably, in the above-described pre-filter backwash rotary spray device, the outflow of water from the through-hole and the inflow of water from the through-hole drive the rotary sleeve to rotate in opposite directions, respectively.
The backwashing rotary spray washing device for the pre-filter has the advantages that: get into rotatory telescopic rivers, when flowing from three through-hole, under the effort of rivers, rotatory sleeve can rotate, from the water that three through-hole flowed to the filter core is spouted to rotatory state, in order to improve the cleaning performance to the filter core.
Drawings
FIG. 1 is an overall view of a pre-filter backwash spin spray apparatus according to an embodiment of the present invention;
FIG. 2 is a front view of the filter assembly of the pre-filter backwash spin spray apparatus of an embodiment of the present invention;
FIG. 3 is a perspective view of the filter assembly of the pre-filter backwash spin spray apparatus of the present invention;
FIG. 4 is an exploded view of the filter assembly of the pre-filter backwash spin spray apparatus of an embodiment of the present invention;
FIG. 5 is a perspective view of a rotary sleeve of a pre-filter backwash rotary spray device in accordance with an embodiment of the present invention;
fig. 6 is a top view of the rotating sleeve of the pre-filter backwash rotary spray device in accordance with an embodiment of the present invention.
The component names and designations in the drawings are as follows:
the filter comprises an inner bracket 10, a main body end 11, a rotating sleeve 20, a thickening part 21, a through hole 211, a filter element bracket 30, an outer bracket 40, a first outer bracket 41, a second outer bracket 42, a first water inlet 421, a bottle body 50, a raw water inlet 51, a purified water outlet 52, a sewage outlet 53 and a knob 54.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, the present embodiment discloses a pre-filter backwash spin spray apparatus. The back washing rotary spray washing device for the pre-filter has two states of a normal working state and a filter element cleaning state.
The rotary spray rinsing device for backwashing of the pre-filter of the embodiment comprises a bottle body 50, wherein a raw water inlet 51 and a purified water outlet 52 are arranged on the bottle body 50. The bottle 50 has a filter element (not shown) therein. In a normal operation state, water entering the bottle 50 from the raw water inlet 51 is filtered by the filter element and then flows out from the purified water outlet 52 for a user to use.
In order to facilitate the sewage discharge, the bottle body 50 is further provided with a sewage discharge outlet 53 and a knob 54 for controlling the opening or closing of the sewage discharge outlet 53. When the filter element needs to be cleaned, water entering the bottle 50 from the raw water inlet 51 cleans the filter element, and after cleaning is completed, sewage is discharged through the sewage outlet 53. Then, the drain outlet 53 is closed again, and the pre-filter backwashing rotary spray-washing device enters a normal working state.
The pre-filter backwash spin spray apparatus of this embodiment further comprises an inner support 10 and a spin sleeve 20. The rotating sleeve 20 is rotatably mounted to the inner housing 10, and the inner cavity of the rotating sleeve 20 forms an inlet chamber. The inner frame 10 also has an inner cavity and a hollow structure. Both ends of the inner bracket 10 protrude outside the rotating sleeve 20. Three through holes 211 are opened at the peripheral wall of the rotating sleeve 20, and the three through holes 211 are uniformly distributed in the circumferential direction and are respectively arranged at the upper section, the middle section and the lower section of the rotating sleeve 20. The three through holes 211 are each inclined in a clockwise direction or an anticlockwise direction. The filter element is mounted on the inner bracket 10 and sleeved outside the rotating sleeve 20.
When the filter element is cleaned, water entering the raw water inlet 51 enters the inner cavity of the rotary sleeve 20, when the water flows out from the three through holes 211, the rotary sleeve 20 rotates under the action of water flow, and the water flowing out from the three through holes 211 is sprayed to the filter element in a rotating state, so that the cleaning effect on the filter element is improved.
As shown in fig. 5 and 6, in the present embodiment, the rotating sleeve 20 has a thickened portion 21, and a through hole 211 is provided in the thickened portion 21. The embodiment provides the thickened portion 21 to increase the extending length of the through hole 211, so that the inclination angle of the through hole 211 plays a better role, and the rotating sleeve 20 can rotate better when water flows out of the three through holes 211. Specifically, the rotating sleeve 20 has three thickened portions 21, and three through holes 211 are provided on the three thickened portions 21, respectively.
In this embodiment, two opposite sidewalls of the through hole 211 are curved surfaces. In other alternative embodiments, the two opposing sidewalls of the through-hole 211 are beveled.
As shown in fig. 6, in the present embodiment, an intersection point of the center line of the through hole 211 and the circle of the rotating sleeve 20 is defined as a reference point, and an included angle a between the radius of the circle of the rotating sleeve 20 passing through the reference point and the center line is an obtuse angle, and the obtuse angle is 110 ° to 170 °. For example, the obtuse angle is 110 °, 120 °, 130 °, 160 °, or 170 °. The rotating sleeve 20 rotates more smoothly at this moment, and the effect of water flow for cleaning the filter element is better.
In this embodiment, the thickness of the thickened portion 21 is 1.2 to 3 times the thickness of the rest of the rotating sleeve 20. For example, the thickness of the thickened portion 21 is 1.2 times, 2 times or 3 times the thickness of the rest of the rotating sleeve 20. The rotating sleeve 20 rotates more smoothly at this time, which is beneficial to improving the effect of cleaning the filter element.
As shown in fig. 2-4, the backwashing rotary spray-washing device for the front filter of the present embodiment further includes a filter cartridge holder 30, the filter cartridge holder 30 is sleeved outside the rotary sleeve 20 and is spaced apart from the rotary sleeve 20, and a filter cartridge is mounted on the filter cartridge holder 30. The filter element frame 30 has a hollow structure for water to pass through. The filter element frame 30 is spaced from the rotary sleeve 20 by a distance, so that the filter element is spaced from the rotary sleeve 20 by a distance, water sprayed from the through holes 211 acts on the filter element with a certain action force, impurities attached to the outer surface of the filter element are washed from inside to outside, and the effect of cleaning the filter element is ensured.
The rotary spray rinsing device for the pre-filter back wash of the present embodiment further comprises an outer bracket 40, the outer bracket 40 is installed in the inner cavity of the bottle body 50, and the inner bracket 10, the rotary sleeve 20 and the filter element are all installed in the inner cavity of the outer bracket 40. The interior cavity of the filter element forms a first flow path and a second flow path is formed between the outer surface of the filter element and the inner wall of the vial 50. Under the normal working condition, water entering from the raw water inlet 51 enters the second water flow channel through the first water inlet 421, then enters the first water flow channel through the filtration of the filter element, and finally is discharged from the purified water outlet 52.
A return spring is installed in the outer bracket 40. The inner support 10 of the pre-filter backwashing rotary spray device of the embodiment can move back and forth under the action of siphoning and a return spring so as to switch the water flow direction, so that the water flow flows from the first water flow channel to the second water flow channel or from the second water flow channel to the first water flow channel. Specifically, in a state of cleaning the filter element, the drain outlet 53 is opened, and the main body end 11 of the inner bracket 10 moves downward by a certain distance under the siphon action to switch the water flow passage, so that the water entering from the raw water inlet 51 enters the inner cavity of the filter element at the top through the first water inlet 421, and then enters the inner cavity of the rotary sleeve 20, i.e., the inner cavity of the filter element. The sewage after the filter element is cleaned enters the second water flow channel and is finally discharged from the sewage discharge port 53.
In this embodiment, the external frame 40 includes a first external frame 41 and a second external frame 42, and the first external frame 41 and the second external frame 42 are detachably connected to facilitate the assembly and disassembly of the external frame 40. For example, first outer bracket 41 snap fits with second outer bracket 42. The first outer bracket 41 is positioned below the second outer bracket 42 and has a length longer than that of the second outer bracket 42. The first water inlet 421 is provided to the second outer holder 42. The return spring is mounted at the bottom of the inner cavity of the first outer bracket 41 and abuts against the inner bracket 10.
In this embodiment, the water flow out of the through holes 211 and the water flow in from the through holes 211 drive the rotating sleeve 20 to rotate in opposite directions, respectively.
In this embodiment, the inner support 10, the rotary sleeve 20, the filter cartridge support 30, the filter cartridge, and the outer support 40 are assembled into a filter assembly, which can be integrally installed in the bottle body 50 or removed from the bottle body 50.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a leading filter back flush rotatory jetter which characterized in that includes:
an inner support (10);
the rotating sleeve (20) is rotatably arranged on the inner support (10), and an inner cavity of the rotating sleeve (20) forms a water inlet cavity; the peripheral wall of the rotating sleeve (20) is provided with three through holes (211), the three through holes (211) are uniformly distributed in the circumferential direction and are respectively arranged at the upper section, the middle section and the lower section of the rotating sleeve (20); the three through holes (211) are inclined along the clockwise direction or the anticlockwise direction;
the filter element is mounted on the inner support (10) and sleeved outside the rotating sleeve (20).
2. Pre-filter backwash rotary spray device according to claim 1, characterized in that the rotary sleeve (20) has a thickened portion (21), the through-hole (211) being provided in the thickened portion (21).
3. The pre-filter backwashing rotary spray-washing device of claim 1, wherein the side wall of the through hole (211) is curved or inclined.
4. The prefilter backwashing rotary spray apparatus of claim 1, wherein an intersection point of a center line of said through hole (211) and a circle on which said rotating sleeve (20) is located is defined as a reference point, and an included angle between a radius of the circle on which said rotating sleeve (20) passes through said reference point and said center line is an obtuse angle, said obtuse angle being 110 ° to 170 °.
5. Pre-filter backwash rotary spray device according to claim 2, characterized in that the thickness of the thickening (21) is 1.2-3 times the thickness of the rest of the rotary sleeve (20).
6. The rotary pre-filter backwashing sprayer according to claim 1, further comprising a filter cartridge holder (30), wherein the filter cartridge holder (30) is sleeved outside the rotating sleeve (20) and spaced apart from the rotating sleeve (20), and the filter cartridge is mounted on the filter cartridge holder (30).
7. The pre-filter backwashing rotary spraying device according to claim 1, further comprising a bottle body (50) and an outer support (40), wherein the outer support (40) is installed in an inner cavity of the bottle body (50), and the inner support (10), the rotary sleeve (20) and the filter element are all installed in an inner cavity of the outer support (40); the inner cavity of the filter element forms a first water flow channel, and a second water flow channel is formed between the filter element and the inner wall of the bottle body (50).
8. The rotary pre-filter backwashing sprayer according to claim 7, further comprising a reset member installed in the inner cavity of the outer bracket (40), wherein the reset member is pressed to push the inner bracket (10) to move so as to switch the water flow direction.
9. The pre-filter backwash rotary spray device according to claim 7, wherein the outer support (40) comprises a first outer support (41) and a second outer support (42), the first outer support (41) and the second outer support (42) being detachably joined.
10. Pre-filter backwash rotary sprayer according to any one of claims 1 to 9, characterized in that the outflow of water from the through holes (211) and the inflow of water from the through holes (211) will drive the rotation of the rotating sleeve (20) in opposite directions, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011613404.XA CN112642197A (en) | 2020-12-30 | 2020-12-30 | Back-flushing rotary spray washing device for pre-filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011613404.XA CN112642197A (en) | 2020-12-30 | 2020-12-30 | Back-flushing rotary spray washing device for pre-filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112642197A true CN112642197A (en) | 2021-04-13 |
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ID=75364428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011613404.XA Pending CN112642197A (en) | 2020-12-30 | 2020-12-30 | Back-flushing rotary spray washing device for pre-filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112642197A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456927A (en) * | 2021-08-10 | 2021-10-01 | 重庆医科大学附属儿童医院 | Lavage device for children gastroenterology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102485309A (en) * | 2010-12-06 | 2012-06-06 | 汉斯萨塞拉思有限责任公司 | Backstreaming flushing filter |
| CN103372341A (en) * | 2012-04-17 | 2013-10-30 | 3M创新有限公司 | Back-flush-type preposed water filter |
| CN104906855A (en) * | 2015-06-27 | 2015-09-16 | 许宏娜 | Front-mounted backwash filter |
| CN211635436U (en) * | 2019-12-28 | 2020-10-09 | 杭州倍世润康环保科技有限公司 | But leading filter of back flush |
| CN214389124U (en) * | 2020-12-30 | 2021-10-15 | 优斯曼(江苏)智能科技有限公司 | Back-flushing rotary spray washing device for pre-filter |
-
2020
- 2020-12-30 CN CN202011613404.XA patent/CN112642197A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102485309A (en) * | 2010-12-06 | 2012-06-06 | 汉斯萨塞拉思有限责任公司 | Backstreaming flushing filter |
| CN103372341A (en) * | 2012-04-17 | 2013-10-30 | 3M创新有限公司 | Back-flush-type preposed water filter |
| CN104906855A (en) * | 2015-06-27 | 2015-09-16 | 许宏娜 | Front-mounted backwash filter |
| CN211635436U (en) * | 2019-12-28 | 2020-10-09 | 杭州倍世润康环保科技有限公司 | But leading filter of back flush |
| CN214389124U (en) * | 2020-12-30 | 2021-10-15 | 优斯曼(江苏)智能科技有限公司 | Back-flushing rotary spray washing device for pre-filter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456927A (en) * | 2021-08-10 | 2021-10-01 | 重庆医科大学附属儿童医院 | Lavage device for children gastroenterology |
| CN113456927B (en) * | 2021-08-10 | 2022-08-16 | 重庆医科大学附属儿童医院 | Lavage device for children gastroenterology |
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