CN204973249U - A automatic anti - washing unit for liquid filter - Google Patents
A automatic anti - washing unit for liquid filter Download PDFInfo
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- CN204973249U CN204973249U CN201520421312.XU CN201520421312U CN204973249U CN 204973249 U CN204973249 U CN 204973249U CN 201520421312 U CN201520421312 U CN 201520421312U CN 204973249 U CN204973249 U CN 204973249U
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- pipeline
- filter
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Abstract
The utility model relates to a belt cleaning device of liquid filter. It includes cylindrical casing and cylinder filter screen, has the passageway that supplies the liquid business turn over on the casing wall. Have at least a square frame shape that comprises the pipeline to change movable support in the filter screen, support one end is drawn forth outside the casing by the connecting tube to through valve and fluid pressure pump or strain back pressure fluid pipeline and be connected, the other end has also linked firmly the connecting piece, connecting tube and connecting piece respectively through bearing Kit on the end cover board of casing both ends, make square frame shape change movable support and rotate for the cylinder filter screen, be equipped with delegation or two lines of orifices on every vertical pipeline on support lateral wall relative with the filter screen, wherein for the biasing hole more than 5%, also be equipped with the orifice on the lateral wall the that transversely pipeline is relative with the filter screen bottom surface. The utility model discloses utilize the highly pressurised liquid that the force pump provided to it changes the movable support rotation to utilize structure itself to provide reaction force square drive square frame shape, realizes not needing to increase in addition other subassemblies to the back flush of whole filter screen, and simple structure has saved power.
Description
Technical field
The utility model belongs to liquid filtering technology, is specifically related to utilize filter liquide to carry out the liquid filter of cleaning automatically to filter screen.
Background technology
In prior art, liquid filter has been widely used in the plurality of devices such as industry, agricultural, boats and ships and desalinization process.Filter screen is one of critical component of liquid filter.When reality uses, filter screen is easy to be caused its filtering function to weaken by contamination, loses filtering function even completely.Therefore, filter rinsed, maintenance the unimpeded all the time of filter screen are very important technical problems in liquid filtering.Traditional method carries out manual cleaning to filter screen, but this mode needs equipment to be in stopped status usually, and not only workload is large for this, and greatly reduces operating efficiency, is unfavorable for automated production.
Automatic cleaning filter screen technology has been there is since 20 century 70s.Existing automatic cleaning filter screen, usual needs separately join vacuum plant, motor or transmission device, and suction device, brush and draw together the multiple facilities such as cutter, complex structure, are easily out of order.From result of use, what have can only the filter screen of cleaning part area, and cleaning performance is not good, affects filter wash effect and efficiency.
Summary of the invention
The purpose of this utility model is, for deficiency of the prior art, provide a kind of structure comparatively simple, filter liquide can be utilized to carry out the device of cleaning automatically to filter screen and filter housings.
The purpose of this utility model realizes by with under type.
Automatic back-flushing device for liquid filter of the present utility model, liquid filter is cylindrical housings, circle tube leaching net supports on the housing, the side wall surface of cylindrical housings is provided with the passage passed in and out for liquid, the junction of housing sidewall and bottom surface is provided with end-of-the-pipe, it is characterized in that, described automatic back-flushing device is formed like this: in described filter screen, be provided with a square frame-shaped swinging mounting be made up of pipeline, its maximum transverse size is 0.6-0.99 times of filter screen internal diameter, on square frame-shaped swinging mounting, lower transverse pipe is respectively equipped with connector, wherein the connector of one end is pipeline, this pipeline is communicated with the pipe tunnel forming square frame-shaped swinging mounting, described pipeline communicating part is arranged in the hole of counter-flushing liquid inlet tube by bearing and seal, this counter-flushing liquid inlet tube is attached in the centre bore of shell ends panel, the connector of the other end is arranged on housing other end by bearing, and square frame-shaped swinging mounting can be rotated relative to circle tube leaching net (housing), the external part of described counter-flushing liquid inlet tube by valve and liquid pressure pump or after filtering pressure fluid pipeline connects, the cross-sectional area of this inlet tube is at least 1.2-2.5 times of swinging mounting cross-section of pipeline used, on the sidewall relative with filter screen of every root pipe tunnel of described square frame-shaped swinging mounting, be provided with a line or two row spray orifices from top to bottom, wherein, the spray orifice of more than 5% is offset hole, angle between the plane that its axis and pipe tunnel axis and shaped as frame swinging mounting longitudinal centre line are formed within the scope of 0.5 °-90 °, the spacing of adjacent two spray orifices be the 1.5-6 of injection diameter doubly, the sidewall that the lower horizontal pipeline of square frame-shaped swinging mounting is relative with filter screen bottom surface is also provided with spray orifice, the axis of each spray orifice and pipe tunnel axis being parallel or have angle within 75 °, makes any position of high pressure liquid physical efficiency directive filter screen bottom surface.
In concrete enforcement, all pipeline junctions all should adopt encapsulation process, to ensure that liquid is not leaked.The diameter of spray orifice can be selected according to the different situations of liquid filter specification size, filter screen pattern and material, hydraulic fluid viscosity and mesh size, usually can choose between 1mm-15mm, the injection diameter of different parts can be identical, also can be set to not identical according to use needs.After the filter used in automatic backwash, the pressure of liquid can be identical with the operating pressure of liquid filter, also can select according to the different situations of the factor such as kind and character of filter screen pattern and material, filter liquide viscosity and dirt, usually should within the scope of 0.3-1.5Mpa.
For the situation using two or more square frame-shaped swinging mountings, upper lower transverse tubule now can change flat cylindrical box body or hollow ring into, many longitudinal pipes are all communicated with on this cylindrical box body or hollow ring, and arrange jet pipe on the bottom surface of lower cylindrical box body or hollow ring.
Automatic back-flushing device for liquid filter of the present utility model, when filter work run need to clean filter screen after a period of time time, open the valve in the rear liquid source of external high pressure filter, after the filter of then high pressure, liquid enters the pipe tunnel of square frame-shaped swinging mounting and the horizontal pipeline of bottom by large-sized introducing pipeline, and from each spray orifice directive screen pack, from inside to outside backwash is carried out to filter screen, sticky various dirts around filter mesh are rushed to open.Because the axis of part spray orifice becomes bias state, be mapped to highly pressurised liquid on filter screen and filter screen wall is skewed, its reaction force can form a moment to shaped as frame swinging mounting; On the other hand, square frame-shaped swinging mounting is by bearings on the upper and lower end face of housing, and housing and filter screen maintain static, then shaped as frame swinging mounting can automatically rotate under moment loading, makes whole filter screen be cleaned thus.The liquid of horizontal pipeline spray orifice ejection can rinse the dirt accumulating in filter screen bottom, when shaped as frame swinging mounting constantly rotates, then makes whole filter screen base plate be rinsed well.If need to start cleaning procedure not closing when filter normally works, separately should join high-pressure pump, connecting pipe is transferred on this high-pressure pump, the pressure when pressure used during cleaning normally should work higher than filter.
Automatic back-flushing device for liquid filter of the present utility model; utilize the highly pressurised liquid that compression pump (use in the environment of liquid filter and usually can be provided with this kind equipment) provides; not only achieve the automatic cleaning to filter; and utilize structure itself to provide the moment of reaction to drive shaped as frame swinging mounting automatic rotation; realize carrying out backwash from inside to outside to whole filter screen, do not need separately to increase the complex assemblies such as vacuum plant, motor and transmission device.Thus, both save power, also simplify structure.
Compared with existing cleaning device, the whole working face of automatic back-flushing device energy flushing filtering net for liquid filter of the present utility model, non-blind area, effectively can clean the dirt be pasted onto on filter screen, no longer need artificial clear operation, automaticity is high.
Be further described below by embodiment and accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of embodiment of the automatic back-flushing device of liquid filter described in the utility model.
Fig. 2 is the example structure schematic diagram of shaped as frame swinging mounting described in the utility model.
Fig. 3 is the A-A sectional view of Fig. 2.
Detailed description of the invention
Embodiment 1
See Fig. 1, liquid filter housing 1 is cylindrical, and its sidewall is provided with the inlet and outlet piping of hydraulic fluid.Filter screen 2 is also cylindrical, and its upper port is inclined-plane, is provided with gap between filter screen and inner walls, and the flange of filter screen upper port periphery is connected in housing sidewall, and ensures that hydraulic fluid filters the separation of front and back by it.When liquid filter works, before filter, liquid enters housing from the feed liquor mouth of pipe 3, enters filter screen 2 inner chamber, then flow out through the fluid mouth of pipe 4 through opening of sieve.
Backwash inlet tube 5 is fixed with in housing 1 upper cover plate center, bearing and seal 6 are installed in this inlet tube central bore, the middle part of square frame-shaped swinging mounting 7 upper lateral tube is fixed with vertical tube, this vertical tube upper end is arranged in the endoporus of above-mentioned bearing and seal 6, makes square frame-shaped swinging mounting 7 can flexible rotating wherein.The upper end of inlet tube 5 reaches outside case top lid plate, is communicated with the liquid pressure pump 8 of peripheral hardware, and has valve 9 to control.Be connected with Connection Block 10 in the middle part of the lower transverse tubule of square frame-shaped swinging mounting 7, this Connection Block 10 is through filter screen and be supported on by sliding bearing in the endoporus of filter housings 1 base plate, makes square frame-shaped swinging mounting 7 can relative to filter screen (or housing) flexible rotating.The junction of housing 1 sidewall and bottom surface is provided with end-of-the-pipe 11.
See Fig. 2, square frame-shaped swinging mounting 5 is made up of upper lateral tube 12, left and right longitudinal pipe 13 and lower transverse tubule 14.Inlet tube 5 is connected with upper lateral tube 12.The side place from top to down towards screen wall of left and right longitudinal pipe is provided with a line spray orifice 15, and often row is in respect of 51 spray orifices, and wherein 17 is offset hole.Angle between the line face of the axis of described offset hole and pipe tunnel axis and shaped as frame swinging mounting rotation centerline is 15 °, angle see the line face of the center line and pipe tunnel axis and shaped as frame swinging mounting rotation centerline that have expressed offset hole in Fig. 3, figure is β.The axis of other spray orifices is vertical with the rotation centerline of square frame-shaped swinging mounting 7.In respect of 22 vertical spray orifices 16 on the sidewall of lower transverse tubule towards bottom surface.
Practical application test is carried out to the present embodiment below:
In the present embodiment, the specification of liquid (water) filter is DN30cm, the internal diameter 52cm of housing, filter screen internal diameter 40cm, and screen material is high-quality stainless steel, and backwash liquid inlet tube internal diameter is 7cm, and the internal diameter of the pipeline of square frame-shaped swinging mounting is 4.5cm.The Breadth Maximum of square frame-shaped swinging mounting is 38.5cm, and injection diameter is 0.4cm, the spacing 1.4cm between spray orifice, and the spray orifice on two pipe tunnels is arranged in the shape that mutually staggers.The pressure of the compression pump selected is 0.6Mpa.
Compression pump 8 and introducing water pipe 5 are connected, starting pressure pump 8, after the filter of high pressure, liquid enters the pipe tunnel 13 of square frame-shaped swinging mounting 7 and the horizontal pipeline 14 of bottom by inlet tube 5, and from each spray orifice directive filter screen, sticky various dirts around opening of sieve is rushed to open.After this program of startup after about 2-10 second, square frame-shaped swinging mounting 7 starts to rotate, thus is washed into whole screen surface.
Experimental result shows, the present embodiment can remove the various dirts of screen surface at short notice effectively, reaches desired effect.
Claims (4)
1. the automatic back-flushing device for liquid filter, liquid filter is cylindrical housings, circle tube leaching net supports on the housing, the side wall surface of cylindrical housings is provided with the passage passed in and out for liquid, the junction of housing sidewall and bottom surface is provided with end-of-the-pipe, it is characterized in that, described automatic back-flushing device is formed like this: in described filter screen, be provided with a square frame-shaped swinging mounting be made up of pipeline, its maximum transverse size is 0.6-0.99 times of filter screen internal diameter, on square frame-shaped swinging mounting, lower transverse pipe is respectively equipped with connector, wherein the connector of one end is pipeline, this pipeline is communicated with the pipe tunnel forming square frame-shaped swinging mounting, described pipeline communicating part is arranged in the hole of counter-flushing liquid inlet tube by bearing and seal, this counter-flushing liquid inlet tube is attached in the centre bore of shell ends panel, the connector of the other end is arranged on the housing other end by bearing, and square frame-shaped swinging mounting can be rotated relative to circle tube leaching net, the external part of described counter-flushing liquid inlet tube by valve and liquid pressure pump or after filtering pressure fluid pipeline connects, the cross-sectional area of this inlet tube is at least 1.2-2.5 times of swinging mounting cross-section of pipeline used, on the sidewall relative with filter screen of every root pipe tunnel of described square frame-shaped swinging mounting, be provided with a line or two row spray orifices from top to bottom, wherein, the spray orifice of more than 5% is offset hole, angle between the plane that its axis and pipe tunnel axis and shaped as frame swinging mounting longitudinal centre line are formed within the scope of 0.5 °-90 °, the spacing of adjacent two spray orifices be the 1.5-6 of injection diameter doubly, the sidewall that the lower horizontal pipeline of square frame-shaped swinging mounting is relative with filter screen bottom surface is also provided with spray orifice, the axis of each spray orifice and pipe tunnel axis being parallel or have angle within 75 °, makes any position of high pressure liquid physical efficiency directive filter screen bottom surface.
2. a kind of automatic back-flushing device for liquid filter as claimed in claim 1, it is characterized in that, the diameter of described spray orifice is chosen between 1mm-15mm.
3. a kind of automatic back-flushing device for liquid filter as claimed in claim 1, it is characterized in that, after the filter used in described automatic backwash, the pressure of liquid is identical with the operating pressure of liquid filter, or chooses within the scope of 0.3-1.5Mpa.
4. a kind of automatic back-flushing device for liquid filter as claimed in claim 1, it is characterized in that, for the situation using two or more square frame-shaped swinging mounting, upper and lower transverse tube is now replaced by flat cylindrical box body or hollow ring, many longitudinal pipes are all communicated with on this cylindrical box body or hollow ring, and arrange spray orifice on the bottom surface of lower cylindrical box body or hollow ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520421312.XU CN204973249U (en) | 2015-06-18 | 2015-06-18 | A automatic anti - washing unit for liquid filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520421312.XU CN204973249U (en) | 2015-06-18 | 2015-06-18 | A automatic anti - washing unit for liquid filter |
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| Publication Number | Publication Date |
|---|---|
| CN204973249U true CN204973249U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520421312.XU Active CN204973249U (en) | 2015-06-18 | 2015-06-18 | A automatic anti - washing unit for liquid filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854203A (en) * | 2018-03-05 | 2018-11-23 | 哈巴河县洪昇科技服务有限公司 | Mobile rotary self-cleaning raw water filtration device |
-
2015
- 2015-06-18 CN CN201520421312.XU patent/CN204973249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854203A (en) * | 2018-03-05 | 2018-11-23 | 哈巴河县洪昇科技服务有限公司 | Mobile rotary self-cleaning raw water filtration device |
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